CN116459727A - High-precision material liquid delivery system and high-precision material liquid batching system - Google Patents

Abstract

Embodiments of the present invention provide a high-precision feed liquid delivery system and a high-precision feed liquid batching system. Wherein, the high-precision feed liquid delivery system includes a storage tank, a first feed pipe, a buffer exhaust bucket, a feed pipe assembly, a flow meter and a centrifugal pump. The material storage tank, the first material delivery pipe, the buffer exhaust hopper and the material delivery pipe assembly are connected in sequence according to the flow direction of the material liquid, and the discharge port of the material delivery pipe assembly can be communicated with the stirring tank. Both the flow meter and the centrifugal pump are arranged on the delivery pipe assembly. Therefore, the high-precision material liquid delivery system of the embodiment of the present invention has the advantage of high batching accuracy.

Description

High-precision material liquid delivery system and high-precision material liquid batching system

technical field

The invention relates to the field of battery technology, in particular to a delivery system for high-precision material liquid and a batching system with the delivery system.

Background technique

Currently on the market, a large amount of solvent needs to be added to the homogenization process of the positive and negative electrodes of the pole piece. In the related art, the conveying system mainly transports the feed liquid from the storage tank to the mixing tank through a centrifugal pump. The flow rate of feed liquid is measured by the flow meter set at the rear end of the centrifugal pump. However, when the material level of the feed liquid in the storage tank is low, the air in the storage tank will be input into the centrifugal pump together with the feed liquid. The feed liquid mixed with air not only reduces the delivery capacity of the centrifugal pump, but also causes the mass flowmeter to be inaccurate due to air mixing, resulting in a problem that the ingredients do not match the actual demand.

Contents of the invention

The present invention aims to solve one of the technical problems in the related art at least to a certain extent. For this reason, the embodiments of the present invention propose a high-precision feed liquid delivery system. The conveying system has the advantages of high batching accuracy and high stability of conveying capacity.

The embodiment of the present invention also proposes a batching system of high-precision material liquid

The high-precision feed liquid delivery system of the embodiment of the present invention includes a storage tank, a first feed pipe, a buffer exhaust bucket, a feed pipe assembly, a flow meter and a centrifugal pump.

The material storage tank, the first material delivery pipe, the buffer exhaust hopper and the material delivery pipe assembly are connected in sequence according to the flow direction of the material liquid, and the discharge port of the material delivery pipe assembly can be communicated with the stirring tank. Both the flow meter and the centrifugal pump are arranged on the delivery pipe assembly.

In the high-precision material liquid conveying system of the embodiment of the present invention, by setting a buffer exhaust hopper between the material storage tank and the material delivery pipe assembly, when the material level of the material liquid in the material storage tank is low, the material liquid will form a vortex at the bottom outlet of the material storage tank and bring a large number of air bubbles into the buffer exhaust hopper. Actual feed liquid flow through flow rate. Therefore, it is beneficial to improve the advantages of the centrifugal pump delivery capacity and batching accuracy.

Therefore, the high-precision material liquid delivery system of the embodiment of the present invention has the advantages of high delivery capacity and high batching accuracy.

In some embodiments, the cache exhaust hopper includes a conical bucket and a first exhaust valve, the feed port of the conical hopper is connected to the discharge port of the first delivery pipe, the discharge port of the conical hopper is connected to the feed port of the delivery pipe assembly, the upper area of the conical hopper has a buffer hopper exhaust port, and the first exhaust valve is arranged on the buffer hopper exhaust port.

In some embodiments, the high-precision feed liquid delivery system further includes a sewage discharge assembly, the lower end of the buffer exhaust bucket has a sewage discharge port, and the sewage discharge assembly is connected to the sewage discharge port of the material delivery pipe assembly.

In some embodiments, the first delivery pipe is provided with a first control valve.

In some embodiments, a first weighing module is also included, and the first weighing module is arranged on the storage tank.

In some embodiments, the first control valve includes a first manual ball valve and a first pneumatic ball valve, and the first manual ball valve and the first pneumatic ball valve are sequentially arranged on the first delivery pipe according to the flow direction of the material and liquid.

In some embodiments, the feeding pipe assembly includes a main pipe section, a feeding pipe section, and a tank feed section that are sequentially connected according to the flow direction of the feed liquid. The feed inlet of the main pipe section is connected to the liquid outlet of the buffer exhaust funnel, and the outlet of the tank feed section can be communicated with the stirring tank. The flow meter and the centrifugal pump are both arranged on the feed pipe section.

In some embodiments, the high-precision material liquid delivery system further includes a second control valve, the upper end of the material lifting pipe section is provided with a material lifting exhaust port, and the second control valve is arranged on the material lifting exhaust port.

In some embodiments, the material-lifting pipe section includes a connection section sequentially connected according to the flow direction of the feed liquid and a material-lifting section extending in the up-and-down direction, the material-lifting exhaust port is arranged at the upper end of the material-lifting section, the feeding port of the connecting section is connected to the material outlet of the main pipe section, the flow meter is arranged on the material-lifting section, and the centrifugal pump is arranged on the connecting section.

In some embodiments, the feeding pipe assembly further includes a return pipe section and a second control valve, the material lifting pipe section has a first discharge port and a second discharge port, the first discharge port communicates with the feed port of the tank feed section, the second discharge port communicates with the feed port of the return pipe section, the discharge port of the return pipe section communicates with the feed port of the feed pipe section, the centrifugal pump is arranged on the feed pipe section, and the return pipe section and the feed pipe section can form a circulation loop. The second control valve is arranged at the part of the material lifting section close to the second discharge port so as to control the communication of the circulation loop.

In some embodiments, the second control valve includes a back pressure valve and a second manual ball valve arranged in sequence according to the flow direction of the feed liquid.

In some embodiments, the delivery pipe assembly further includes a pressure gauge, and the pressure gauge is arranged on the delivery pipe section.

In some embodiments, the delivery pipe assembly further includes a pressure transmitter, the pressure transmitter is arranged in the material lifting pipe section, and the pressure transmitter is arranged between the flow meter and the centrifugal pump.

In some embodiments, the tank feeding section is arranged obliquely relative to the horizontal direction, and the feed opening of the tank feeding section is higher than the discharge opening of the tank feeding section.

The high-precision feed liquid batching system in the embodiment of the present invention may include a stirring tank and any one of the above-mentioned high-precision feed liquid delivery systems, and the discharge port of the material delivery pipe assembly communicates with the feed port of the stirring tank.

In some embodiments, the feeding pipe assembly includes a tank feeding section, and the stirring tank has a plurality of them, and the multiple stirring tanks are sequentially arranged along the extending direction of the tank feeding section, and the tank feeding section has a plurality of discharge openings, and the multiple discharge openings of the tank feeding section communicate with the multiple stirring tanks one by one.

In some embodiments, there are multiple high-precision feed liquid delivery systems, and the multiple high-precision feed liquid delivery systems are connected to the same stirring tank.

Description of drawings

Fig. 1 is a schematic structural diagram of a high-precision feed liquid batching system according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a high-precision feed liquid delivery system according to an embodiment of the present invention.

Reference signs:

Batching system 1000;

Conveying system 100; Stirring tank 200;

storage tank 1;

The first feeding pipe 2;

Buffer exhaust bucket 3; conical bucket 31; first exhaust valve 32;

The feeding pipe assembly 4; the main pipe section 41; the feeding pipe section 42; the connecting section 421; the feeding section 422; the feeding exhaust port 423;

Tank feed section 43;

Return pipe section 44;

pressure gauge 45;

pressure transmitter 46;

flow meter 5;

Centrifugal pump 6;

Sewage assembly 7;

The first weighing module 81; the second weighing module 82;

The first control valve 91; the first manual ball valve 911; the first pneumatic ball valve 912;

The second control valve 92; the back pressure valve 921; the second manual ball valve 922;

third control valve 93;

Fourth control valve 94;

Check valve 95.

Detailed ways

Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

The following describes a high-precision material liquid delivery system 100 and a high-precision material liquid batching system 1000 according to an embodiment of the present invention with reference to FIGS. 1-2 .

The delivery system 100 for high-precision material and liquid according to the embodiment of the present invention includes a storage tank 1 , a first material delivery pipe 2 , a buffer exhaust bucket 3 , a delivery pipe assembly 4 , a flow meter 5 and a centrifugal pump 6 .

The storage tank 1 , the first feeding pipe 2 , the buffer exhaust hopper 3 and the feeding pipe assembly 4 are sequentially connected in accordance with the flow direction of the feed liquid, and the discharge port of the feeding pipe assembly 4 can communicate with the stirring tank 200 . Both the flow meter 5 and the centrifugal pump 6 are arranged on the delivery pipe assembly 4 .

The delivery system 100 of the high-precision feed liquid of the embodiment of the present invention, by setting the buffer exhaust hopper 3 between the storage tank 1 and the feed pipe assembly 4, when the material level of the feed liquid in the storage tank 1 is low, the feed liquid will form a vortex at the bottom outlet of the storage tank 1 and bring a large amount of air bubbles into the buffer exhaust hopper 3, first flow the feed liquid into the buffer exhaust hopper 3 for steady flow, and discharge the air mixed in the feed liquid in the buffer exhaust hopper 3, thereby eliminating its influence on the conveying capacity of the centrifugal pump 6, so that the feed liquid can be made Stable flow through the flow meter 5, so that the flow meter 5 counts as the actual flow of material liquid. Therefore, it is beneficial to improve the advantages of the centrifugal pump delivery capacity and batching accuracy.

Therefore, the high-precision feed liquid delivery system 100 of the embodiment of the present invention has the advantages of high delivery capacity and high batching accuracy.

Optionally, the high-precision feed liquid can be deionized water and/or NMP liquid.

Specifically, the discharge port of the storage tank 1 is connected to the feed port of the first feed pipe 2, the discharge port of the first feed pipe 2 is connected to the feed port of the buffer exhaust funnel 3, the discharge port of the cache exhaust funnel 3 is connected to the feed port of the feed pipe assembly 4, and the feed port of the feed pipe assembly 4 is connected to the feed port of the mixing tank 200.

As shown in Fig. 1 and Fig. 2, the cache exhaust bucket 3 includes a conical bucket 31 and a first exhaust valve 32. The feed port of the conical bucket 31 is connected to the discharge port of the first feeding pipe 2, and the discharge port of the tapered bucket 31 is connected to the feed port of the feed pipe assembly 4. The area near the top of the tapered bucket 31 has a buffer bucket exhaust port, and the first exhaust valve 32 is arranged on the buffer bucket exhaust port.

The delivery system 100 for high-precision feed liquid of the embodiment of the present invention has a buffer bucket exhaust port near the upper area of the cone bucket 31, so that the air mixed into the cone bucket 31 can be discharged as much as possible without affecting the volume of the cone bucket 31. At the same time, the buffer exhaust bucket 3 is set in a conical shape, which is beneficial to realize the emptying of the feed liquid and reduce the waste of the feed liquid. In addition, a first exhaust valve 32 is provided on the outlet of the buffer bucket, which can be selectively opened or closed according to the air pressure in the outlet of the buffer bucket.

As shown in FIGS. 1 and 2 , the high-precision feed liquid delivery system 100 also includes a sewage discharge assembly 7 . The lower end of the buffer exhaust bucket 3 has a sewage discharge port.

The high-precision material liquid delivery system 100 of the embodiment of the present invention provides a sewage discharge port at the lower end of the buffer exhaust bucket 3 and connects the sewage discharge assembly 7 with the sewage discharge port. After continuous use, the material liquid remaining in the cache exhaust funnel 3 can be removed to create convenient conditions for the subsequent cleaning process.

Optionally, the sewage discharge assembly 7 includes a sewage discharge valve and a sewage collection tank, and the sewage collection tank is connected to the sewage discharge port of the buffer bucket exhaust port.

As shown in FIG. 1 and FIG. 2 , a first control valve 91 is provided on the first delivery pipe 2 . Thus, it is possible to timely prevent feed liquid from entering the buffer exhaust hopper 3 when the buffer exhaust hopper 3 fails. Therefore, there is an advantage of high operational convenience.

Optionally, the first control valve 91 includes a first manual ball valve 911 and a first pneumatic ball valve 912, and the first manual ball valve 911 and the first pneumatic ball valve 912 are sequentially arranged on the first delivery pipe 2 according to the flow direction of the feed liquid. It can be understood that the communication of the first delivery pipe 2 can be controlled through the first pneumatic ball valve 912 according to the pressure in the first delivery pipe 2 . It is also possible to artificially control the opening and closing of the first delivery pipe 2 through the first manual ball valve 911 . During the feeding process, the first manual ball valve 911 is normally open, and the first pneumatic ball valve 912 is opened and closed according to the pressure of the first feeding pipe 2 .

The high-precision feed liquid delivery system 100 of the embodiment of the present invention can control the connection of the first feed pipe 2 through the first pneumatic ball valve 912 according to the pressure in the first feed pipe 2, which has the advantages of high operational safety and convenience. In addition, the first manual ball valve 911 and the first pneumatic ball valve 912 are arranged in sequence according to the flow direction of the feed liquid. Thus, when the first pneumatic ball valve 912 fails, the first manual ball valve 911 can be closed to prevent the feed liquid from flowing into the first pneumatic ball valve 912, so that the failed first pneumatic ball valve 912 can be replaced. Thereby, there is an advantage that replacement convenience is high.

The high-precision feed liquid delivery system 100 also includes a first weighing module 81 , and the first weighing module 81 is arranged on the storage tank 1 . Thus, the material level of the material liquid in the material storage tank 1 can be judged by feeding the material storage tank 1 according to the cooperation of the first weighing module 81 . In addition, the accuracy of the batching system 1000 can also be checked according to the first weighing module 81, which is helpful to further improve the accuracy of batching.

As shown in Figures 1 and 2, the feeding pipe assembly 4 includes a main pipe section 41, a feeding pipe section 42, and a tank feeding section 43 that are sequentially connected according to the flow direction of the feed liquid.

In the high-precision feed liquid delivery system 100 of the embodiment of the present invention, the feed pipe assembly 4 is divided into a main pipe section 41, a feed pipe section 42, and a tank feed section 43 connected sequentially according to the flow direction of the feed liquid, and the material is lifted through the feed pipe section 42 so that the feed liquid therein flows into the stirring tank 200. Therefore, it has the advantages of simple pipe section design and convenient feeding.

Optionally, a third control valve 93 is provided on the material lifting pipe section 42 . Specifically, the third control valve 93 may be a plurality of manual ball valves.

As shown in FIGS. 1 and 2 , the delivery system 100 of high-precision feed liquid according to the embodiment of the present invention also includes a second control valve 92 , the upper end of the feed pipe section 42 is provided with a feed exhaust port 423 , and the second control valve 92 is arranged on the feed exhaust port 423 .

In the high-precision feed liquid delivery system 100 of the embodiment of the present invention, the upper end of the feed pipe section 42 is provided with a feed exhaust port 423, and the air mixed in the feed liquid can be further discharged through the exhaust port during the process of conveying the feed liquid. Therefore, the speed at which the feed liquid flows through the flow meter 5 is further increased. As a result, the authenticity of counting by the flowmeter 5 is further improved, which is beneficial to the advantage of improving the accuracy of ingredients.

As shown in Fig. 1 and Fig. 2, the feeding pipe section includes a connecting section 421 sequentially connected according to the flow direction of the feed liquid and a feeding section 422 extending up and down, the feeding exhaust port 423 is arranged on the upper end of the feeding section 422, the feeding port of the connecting section 421 is connected with the outlet of the main pipe section 41, the flow meter 5 is arranged on the feeding section 422, and the centrifugal pump 6 is arranged on the connecting section 421. Therefore, there is an advantage of a simple structure.

As shown in Figures 1 and 2, the feeding pipe assembly 4 also includes a return pipe section 44 and a second control valve 92. The material lifting pipe section 42 has a first discharge port and a second discharge port. The material pipe section 42 can form a circulation loop, and the second control valve 92 is arranged at the part of the material lifting section 422 close to the second discharge port so as to control the communication of the circulation loop.

The high-precision feed liquid delivery system 100 of the embodiment of the present invention, through the provided return pipe section 44, can form a circulation loop through the provided return pipe section 44 and the material lifting pipe section 42 before the opened delivery system 100 performs batching. During the circulation process, the air remaining in the feed pipe assembly 4 is driven out through the feeding exhaust port 423. The flow rate of the feed liquid will tend to be stable after multiple cycles, and then the flow meter 5 is used for batch counting. Thus, it has the advantage of further improving the accuracy of ingredients.

Optionally, a check valve 95 is further provided on the return pipe section 44 .

Specifically, the main pipe section 41 communicates with the return pipe section 44 and the material lifting pipe section 42 through a three-way valve. And the communication of the circulation loop can be controlled by opening and closing the second control valve 92 . Optionally, the second control valve 92 includes a second manual ball valve 922 and a back pressure valve 921, and the second manual ball valve 922 and the back pressure valve 921 are sequentially arranged on the material lifting section 422 according to the flow direction of the material liquid.

As shown in FIG. 1 and FIG. 2 , the delivery system 100 of the high-precision feed liquid according to the embodiment of the present invention further includes a pressure gauge 45 , and the pressure gauge 45 is arranged on the feed pipe section 42 .

The high-precision material liquid delivery system 100 of the embodiment of the present invention can judge whether the delivery system 100 is running normally by setting the pressure gauge 45, so as to prevent the delivery system 100 from being blocked and not detected in time.

Optionally, the pressure gauge 45 may be a visual pressure gauge 45 .

As shown in FIGS. 1 and 2 , the delivery system 100 of high-precision feed liquid according to the embodiment of the present invention also includes a pressure transmitter 46 , the pressure transmitter 46 is arranged on the material lifting pipe section 42 , and the pressure transmitter 46 is arranged between the flow meter 5 and the centrifugal pump 6 . As such, the pressure within the lift pipe section 42 may be monitored to reflect stable operation of the delivery system 100 .

As shown in FIG. 1 and FIG. 2 , the tank feeding section 43 is arranged obliquely relative to the horizontal direction, and the feeding opening of the tank feeding section 43 is higher than the discharge opening of the tank feeding section 43 .

The high-precision feed liquid conveying system 100 of the embodiment of the present invention can make the feed liquid entering the tank feed section 43 flow into the mixing tank 200 under the action of its own gravity by setting the tank feeding section 43 inclined relative to the horizontal direction, without adding a pump body; at the same time, the feed liquid counted by the flowmeter 5 can flow into the mixing tank 200, avoiding the accuracy of batching caused by the accumulation of feed liquid in the tank feeding section 43. Thus, there is an advantage of further improving the accuracy of ingredients.

Optionally, the inclination angle of the tank feed section 43 relative to the horizontal direction is 3° to 5°. Thus, the high construction cost of the conveying system 100 due to the large height difference between the front and rear ends of the tank feeding section 43 due to excessive inclination angle is avoided, and the problem of poor self-flow effect caused by too small inclination angle is avoided.

The specific conveying process is as follows. The first manual ball valve 911 below the storage tank 1 storing the feed liquid is in the normally open state, the first pneumatic ball valve 912 is opened, and simultaneously, the centrifugal pump 6 is opened, and the feed liquid flows into the buffer exhaust hopper 3 . When the feed liquid in the storage tank 1 is too small, the feed liquid forms a vortex at the bottom outlet of the storage tank 1 and brings a large amount of air bubbles into the buffer exhaust funnel 3. At this time, the air brought in from the storage tank 1 is released from the first exhaust valve 32 after passing through the buffer exhaust hopper 3. The feed liquid continues to be transported to the rear end through the feed liquid of the centrifugal pump 6, the synchronous flow meter 5 (mass flow meter 5) is opened, and the manual ball valves at the front and rear ends of the flow meter 5 are in a normally open state. At this time, the second manual ball valve 922 and the back pressure valve 921 on the rear end delivery pipeline are in a closed state, and the residual air in the pipeline is released through the material lifting exhaust port 423 at the top of the vertical material lifting section 422, and the material liquid fills the pipeline under the delivery pressure of the centrifugal pump 6. When the feed liquid pressure in the pipeline is greater than the pressure limit of the back pressure valve 921, the channel of the back pressure valve 921 is opened, and the feed liquid passes through the return pipe section 44 and merges into the main pipe section 41 through the check valve 95 to form a closed loop.

The pressure transmitter 46 arranged upstream of the flow meter 5 can monitor the pressure in the pipeline. When the pressure in the material lifting pipe section 42 reaches the set value, the third control valve 93 is opened, and the feed liquid flows through the material lifting pipe section 42 to the tank feed section 43 . The fourth control valve 94 installed in the feed section 43 of the tank is opened, and the feed liquid flows into the stirring tank 200 .

The high-precision feed liquid batching system 1000 of the embodiment of the present invention includes a stirring tank 200 and any one of the high-precision feed liquid delivery systems 100 described above.

Therefore, the high-precision feed liquid batching system 1000 of the embodiment of the present invention has the advantage of high batching accuracy.

Specifically, the feeding port of the mixing tank 200 is located at the upper end of the mixing tank 200, the feeding section 43 of the feeding pipe assembly 4 is arranged above the mixing tank 200, and the discharge port of the feeding section 43 is connected with the feeding port of the mixing tank 200 through a pipeline. A fourth control valve 94 may also be provided on the pipeline between the discharge port of the tank feed section 43 and the feed port of the stirring tank 200 . The material liquid is intermittently entered into the stirring tank 200 in the process of mixing with the stirring tank 200 . Therefore, the high-precision material liquid batching system 1000 of the embodiment of the present invention has the advantage of a high degree of automation.

As shown in Figures 1 and 2, the feeding pipe assembly 4 includes a tank feed section 43, and there are a plurality of stirring tanks 200, and a plurality of stirring tanks 200 are sequentially arranged along the extension direction of the tank feed section 43, and the tank feed section 43 has a plurality of discharge ports, and the multiple discharge ports of the tank feed section 43 communicate with a plurality of stirring tanks 200 one by one. Therefore, it has the advantage of high batching efficiency.

Optionally, a second weighing module 82 may also be arranged in the stirring tank 200 . In order to further check and confirm the batching accuracy according to the batching system 1000 . thus. It is beneficial to adjust in time according to the actual precision situation.

At the same time, the mixing tank 200 can be equipped with multiple high-precision feed liquid delivery systems 100 so as to deliver multiple materials. Thus, the applicability of the delivery system 100 is improved.

Optionally, the mixing tank 200 and the return pipe section 44 may be connected through a steel wire braided hose.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" etc. are based on those shown in the drawings Orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection, or integrated; it can be a mechanical connection, it can also be an electrical connection, or it can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, or an internal communication between two components or an interaction relationship between two components, unless otherwise clearly defined. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the present invention, unless otherwise specified and limited, a first feature being "on" or "under" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

In the present invention, the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims (12)

1. The high-precision feed liquid conveying system is characterized by comprising a storage tank, a first conveying pipe, a buffer exhaust hopper and a conveying pipe assembly which are sequentially communicated according to the feed liquid flowing direction, wherein a discharge port of the conveying pipe assembly can be communicated with a stirring tank;

the flow meter and the centrifugal pump are both arranged on the conveying pipe assembly.

2. The high precision feed liquid delivery system of claim 1, wherein the buffer discharge hopper comprises a cone hopper and a first discharge valve, wherein the feed inlet of the cone hopper is connected with the discharge outlet of the first feed delivery pipe, the discharge outlet of the cone hopper is connected with the feed inlet of the feed delivery pipe assembly, the region of the cone hopper near the upper side is provided with a buffer hopper discharge outlet, and the first discharge valve is arranged on the buffer hopper discharge outlet.

3. The high-precision feed liquid conveying system according to claim 1, further comprising a sewage disposal assembly, wherein a sewage disposal outlet is formed in the lower end of the buffer exhaust hopper, and the sewage disposal assembly is connected with the sewage disposal outlet of the feed conveying pipe assembly;

and/or a first control valve is arranged on the first conveying pipe;

and/or, still include a weighing module, a weighing module sets up on the storage tank.

4. The high-precision feed liquid conveying system according to claim 3, wherein the first control valve comprises a first manual ball valve and a first pneumatic ball valve, and the first manual ball valve and the first pneumatic ball valve are sequentially arranged on the first feed conveying pipe according to the feed liquid flowing direction.

5. The high-precision feed liquid conveying system according to claim 1, wherein the feed conveying pipe assembly comprises a main pipe section, a material lifting pipe section and a feeding tank section which are sequentially communicated according to a feed liquid flowing direction, a feeding port of the main pipe section is communicated with a liquid outlet of the buffer exhaust hopper, a discharging port of the feeding tank section can be communicated with the stirring tank, and the flow meter and the centrifugal pump are both arranged on the material lifting pipe section.

6. The high precision feed liquid delivery system of claim 5, further comprising a second control valve, wherein the upper end of the feed pipe section is provided with the feed gas outlet, and the second control valve is arranged on the feed gas outlet.

7. The high-precision feed liquid conveying system according to claim 6, wherein the material lifting pipe section comprises a connecting section and a material lifting section, the connecting section is sequentially connected according to the feed liquid flowing direction, the material lifting section extends along the up-down direction, the material lifting exhaust port is arranged at the upper end of the material lifting section, the feeding port of the connecting section is connected with the discharging port of the main pipe section, the flowmeter is arranged on the material lifting section, and the centrifugal pump is arranged on the connecting section.

8. The high precision feed liquid delivery system of claim 5, wherein the feed pipe assembly further comprises a return pipe section and a second control valve, the feed pipe section has a first discharge port and a second discharge port, the first discharge port is in communication with the feed port of the feed tank section, the second discharge port is in communication with the feed port of the return pipe section, the discharge port of the return pipe section is in communication with the feed port of the feed pipe section, the centrifugal pump is disposed on the feed pipe section, the return pipe section and the feed pipe section are capable of forming a circulation loop, and the second control valve is disposed on the feed pipe section adjacent the second discharge port section for controlling communication of the circulation loop.

9. The high-precision feed liquid conveying system according to claim 8, wherein the second control valve comprises a back pressure valve and a second manual ball valve which are sequentially arranged according to the feed liquid flowing direction;

and/or the conveying pipe assembly further comprises a pressure gauge, wherein the pressure gauge is arranged on the material lifting pipe section;

and/or, the conveying pipe assembly further comprises a pressure transmitter, wherein the pressure transmitter is arranged on the lifting pipe section, and the pressure transmitter is arranged between the flowmeter and the centrifugal pump.

10. The high precision feed liquid delivery system of claim 5, wherein the feed tank section is disposed obliquely to the horizontal direction, and the feed inlet of the feed tank section is higher than the discharge outlet of the feed tank section.

11. A high precision feed proportioning system comprising a stirred tank and a high precision feed delivery system as claimed in any one of claims 1 to 10, wherein the discharge port of the feed delivery conduit assembly is in communication with the feed inlet of the stirred tank.

12. The high-precision feed liquid batching system according to claim 11, wherein the feed-conveying pipe assembly comprises a plurality of feed-tank feeding sections, a plurality of stirring tanks are sequentially arranged along the extending direction of the feed-tank feeding sections, the feed-tank feeding sections are provided with a plurality of discharge ports, and the discharge ports of the feed-tank feeding sections are communicated with a plurality of stirring tanks in a one-to-one correspondence;

and/or the conveying systems of the high-precision feed liquid are provided with a plurality of conveying systems of the high-precision feed liquid, and the conveying systems of the high-precision feed liquid are connected with the same stirring tank.