CN107662995A - A kind of full-automatic sanitary sewage grease impurities separator - Google Patents

Abstract

The invention discloses a fully automatic separation device for grease and impurities in domestic sewage, which comprises: a domestic sewage inlet, a solid interceptor connected to the inlet, the solid interceptor is connected to an isolation box, and after the sewage is fully settled in the isolation box, it flows into the isolation box and is connected to the isolation box. Auxiliary isolation box, the outlet of the auxiliary isolation box is connected with an auxiliary pump to guide the sewage into the solid interceptor for secondary separation. After the grease is separated from the sewage, it flows into the domestic sewage pipe through the outlet. The isolation box and the auxiliary isolation box are equipped with aeration chambers , the device also includes two liquid level sensors, which are used to detect the liquid level of the grease in the isolation tank and the auxiliary isolation tank and discharge the accumulated grease at an appropriate liquid level.

Description

A fully automatic domestic sewage grease impurity separation device

technical field

The invention relates to domestic sewage treatment, in particular to a fully automatic device for separating grease and impurities in domestic sewage.

Background technique

Grease and impurity separators are commonly used in restaurants, meat and poultry processing plants, slaughterhouses and other industries that have excess grease wastewater and impurities (such as insoluble solids), and the grease in the sewage must be treated to prevent it from being discharged into the sewer system. In many urban communities in our country, urban sewage treatment facilities are often overwhelmed, and the harmful "gutter oil" used by unscrupulous businesses is usually extracted from domestic sewage. Therefore, it is very necessary to strengthen the treatment of urban sewage.

In recent years, with the development of science and technology in our country, more and more attention has been paid to sewage treatment in China. There are many related researches and sewage treatment equipment. Circulating Grease and Miscellaneous Separation Device", and the Chinese patent authorization announcement number is CN201669005U, and the name is the disclosed structure of "New Catering Slag, Water, Oil Separation Swill Bucket Machine". The disadvantage of the above-mentioned equipment structure is: due to the The grease and sewage can easily become emulsified oil and water. It is difficult to effectively reduce the grease content in the sewage after only one treatment. Without the sewage secondary treatment device, the grease content in the sewage cannot be effectively reduced.

Contents of the invention

In order to solve the problems in the prior art, the present invention provides a fully automatic domestic sewage grease impurity separation device.

The invention discloses a fully automatic separation device for grease and impurities in domestic sewage, which comprises: a domestic sewage inlet, a solid interceptor connected with the inlet, the solid interceptor is connected with an isolation box, part of the sewage flows into the domestic sewage pipe through the outlet, and part of the sewage flows into and isolating Auxiliary isolation box connected to the tank, the outlet of the auxiliary isolation box is connected with an auxiliary pump to guide the sewage into the solid interceptor for secondary separation. After the grease is separated from the sewage, it flows into the domestic sewage pipeline through the outlet. The isolation box and the auxiliary isolation box are connected. In the aeration chamber, the device also includes two liquid level sensors, which are used to detect the liquid level of the grease in the isolation box and the auxiliary isolation box and discharge the accumulated grease at an appropriate liquid level.

In a preferred solution, the solid interceptor is equipped with a filter net, which can intercept domestic waste such as food particles, plastics, and vegetable leaves.

In a preferred solution, the isolation box is provided with an isolation box entrance, an inlet baffle is provided near the entrance of the isolation box, and an outlet baffle is arranged far away from the entrance of the isolation box, and the entrance baffle can guide the sewage entering the oil isolation box to flow to the isolated At the bottom of the tank, the outlet baffle can divert the outflow of sewage.

In a preferred solution, at least one heater is included in the isolation box, and the heater is equipped with a temperature sensor, which can control the temperature of the sewage, so that the grease in the sewage has sufficient fluidity, and the sewage is heated and precipitated in the isolation box Finally, because the density of grease is lower than that of water, the grease floats above the sewage, and the separated sewage in the lower layer flows into the domestic sewage pipe through the outlet, and part of the sewage with insufficient separation of grease flows into the auxiliary isolation box connected with the isolation box.

In a preferred solution, the auxiliary isolation box is connected with a metering pump, and the metering pump controls the oil-decomposing enzyme drawn into the auxiliary isolation box, and the oil-decomposing enzyme decomposes the oil in the auxiliary isolation box into water-soluble harmless substance.

In a preferred solution, a water outlet is opened on the auxiliary isolation box, and a water outlet switch is connected to the water outlet.

In a preferred solution, the water outlet switch is connected with a hose, and the hose is connected to an auxiliary pump through an auxiliary valve, and the auxiliary pump guides the sewage into the solid interceptor for secondary separation.

Preferably, there is a grease outlet in the middle of the contact surface between the auxiliary isolation box and the isolation box, and a valve is arranged on the grease outlet, and the valve is connected with a valve pump. When the grease in the isolation box accumulates to a sufficient thickness on the sewage When opening the valve and the valve pump, the grease is discharged out of the system through the grease outlet and collected.

In the preferred solution, a liquid level sensor is provided above the isolation box close to the grease outlet of the auxiliary isolation box. When the liquid level sensor detects the grease above the sewage in the isolation box, the grease outlet valve and the valve pump are opened to pass the grease through the grease. The outlet exits the system and is collected.

In a preferred solution, when the liquid level sensor detects no grease, the grease outlet valve and the valve pump are closed, so that the grease in the isolation box accumulates to a sufficient thickness on the sewage.

In a preferred solution, there is a mouth on the contact surface between the auxiliary isolation box and the isolation box, and the mouth is located at the top of the connection surface between the isolation box and the auxiliary isolation box. When the sewage liquid level reaches the height of the mouth, the sewage flows into the auxiliary water through the mouth. Isolation box.

In a preferred solution, the auxiliary isolation box has a second grease outlet below the water outlet switch, the second grease outlet is provided with a second valve, and the second valve is connected to a second valve pump. When the auxiliary isolation box When the grease accumulates to a sufficient thickness on the sewage, the second valve and the second valve pump are opened, and the grease is discharged out of the system through the second grease outlet and collected.

In a preferred solution, the water outlet switch is provided with a second liquid level sensor, and when the second liquid level sensor detects the grease above the sewage in the auxiliary isolation tank, the second valve and the second valve pump are opened to pass the grease through the second The grease outlet exits the system and is collected.

In a preferred solution, when the second liquid level sensor detects no grease, the second valve and the second valve pump are closed and the water outlet switch, auxiliary valve and auxiliary pump are turned on to pump sewage into the solid interceptor for secondary separation.

The preferred solution, the full-automatic domestic sewage grease impurity separation device, is characterized in that the isolation box and the auxiliary isolation box are provided with an isolated aeration chamber connected to each other, and the aeration chamber can reduce the oil isolation box and the auxiliary isolation box. Air pressure, and isolate and discharge the gas generated during the sewage separation process.

In a preferred solution, the fully automatic domestic sewage grease and impurity separation device is characterized in that, after secondary separation, the sewage is diverted by the outlet baffle, and finally flows into the domestic sewage pipe through the outlet.

The beneficial effects of the present invention are: using the above scheme, a fully automatic domestic sewage grease and impurity separation device can process domestic sewage twice, greatly reducing the content of grease and impurities in sewage, and has the advantages of convenient operation and obvious treatment effect advantage. Therefore, the present invention is widely applicable to restaurants, meat and poultry processing plants, slaughterhouses and other industries with excess oily waste water and impurities such as insoluble solids.

Description of drawings

Fig. 1 is a block diagram of the present invention;

Fig. 2 is the top view of the present invention;

Fig. 3 is the cross-sectional view of the present invention in the front view direction;

Fig. 4 is a block diagram of the control scheme of the present invention.

Detailed ways

In order to facilitate the understanding of the present invention, the present invention will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. Preferred embodiments of the present invention are given in the description and drawings, but the present invention can be implemented in many different forms and is not limited to the embodiments described in the description. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive. In the figures, structurally similar units are denoted by the same reference numerals.

As shown in Figure 1 and Figure 2, a fully automatic domestic sewage grease impurity separation device includes: domestic sewage inlet 1, a solid interceptor 9 connected to the inlet 1, the solid interceptor 9 is connected to the isolation box 8, and the sewage is in the isolation box After fully settling in 8, it flows into the auxiliary isolation box 5 connected to the isolation box 8. The auxiliary isolation box outlet 52 is connected with an auxiliary pump 3 to guide the sewage into the solid interceptor 9 for secondary separation. After the grease is separated from the sewage, it flows into the living room through the outlet. The sewage pipeline, the isolation box 8 and the auxiliary isolation box 5 are provided with an aeration chamber 10 connected to each other. The device also includes a liquid level sensor 114 and a second liquid level sensor 115 for detecting grease in the isolation box 8 and the auxiliary isolation box 5. and drain the accumulated grease at the proper level.

The specific working principle of this device is:

As shown in Figure 1 and Figure 2, domestic sewage enters the solid interceptor 9 from the inlet 1, and the solid interceptor 9 has a filter screen, and domestic waste such as food particles, plastics, and vegetable leaves in the sewage can be intercepted by the filter screen and filtered. The mesh size of net can be changed according to actual situation, and solid interceptor 9 can be opened regularly, cleans wherein solid waste. The solid interceptor 9 is connected to the isolation box 8 through a side wall 22, and the side wall 22 is provided with an isolation box inlet 21, and the sewage passing through the solid interceptor 9 enters the isolation box 8 through the isolation box inlet 21.

As shown in FIG. 2 and FIG. 3 , the isolation box 8 is provided with an inlet baffle 81 , and when the sewage enters the isolation box 8 and reaches the inlet baffle 81 , it flows under the inlet baffle 81 . At this time, the flow rate of the sewage decreases. Since the grease in the sewage is still relative to the sewage, and the density of the grease is less than that of water, the grease will float on the upper surface of the sewage and begin to accumulate. Also be provided with heater 84 in the isolation box 8, make grease be in liquid state and keep sufficient fluidity, float on the sewage upper surface.

As shown in Figure 1 and Figure 2, when the sewage in the isolation box 8 reaches a certain liquid level, the liquid level sensor in the isolation box detects the grease on the upper surface of the sewage, and at this time, the outlet valve at the grease outlet 82 and the valve pump are opened , extract the grease out of the system through the grease outlet 82 and collect it; when the liquid level sensor detects no grease, close the outlet valve and the valve pump; When, the sewage flows into the auxiliary isolation box by the mouth 83.

As shown in Figure 2, the auxiliary isolation box 5 is connected with a metering pump 6, and the metering pump 6 can quantitatively pump the oil-decomposing enzyme into the auxiliary isolation box 5, and the oil is decomposed into soluble oil in the auxiliary isolation box 5 after the chemical action of the decomposing enzyme. Harmless substances in water. A water outlet 52 is provided above the auxiliary isolation box 5 , and a water outlet switch 51 is arranged in front of the water outlet 52 . There is a second grease outlet below the water outlet switch 51, a second valve is arranged on the second grease outlet, the second valve is connected to a second valve pump, a second liquid level sensor is arranged at the water outlet switch 51, and the second liquid level sensor detects When the grease above the sewage in the auxiliary isolation box 5 (grease that has not been decomposed by the grease decomposing enzyme in time), open the second valve and the second valve pump, discharge the grease out of the system through the second grease outlet and collect it; the second liquid level sensor When no grease is detected, turn on the water outlet switch 51, the auxiliary valve 4 and the auxiliary pump 3, and the sewage is pumped into the solid interceptor 9 through the hose 53 and the secondary separation inlet 23 for secondary separation, and the sewage after the secondary separation passes through the outlet After the flow is shunted by the baffle plate 85, it finally flows into the domestic sewage pipe through the outlet 7.

As shown in Fig. 2 and Fig. 3, an isolated aeration chamber communicating with the isolation box 8 and the auxiliary isolation box 5 is provided, the upper end of the aeration chamber 10 is connected with the upper wall of the isolation box 8 and the auxiliary isolation box 5, and the lower end is connected with the isolation box. There is a distance between 8 and the lower wall of the auxiliary isolation box 5, so that the sewage can pass through the lower end of the aeration chamber 10. There is a hole on the side wall of the aeration chamber 10, and an exhaust pipe 101 is fixed on the hole. During the sewage separation process, the isolation The gas in the box 8 and the auxiliary isolation box 5 can be discharged into the aeration chamber 10 along with the exhaust pipe 101. It should be noted that the height of the lower left end of the exhaust pipe 101 is higher than the upper end of the pass 83 to prevent sewage from entering through the exhaust pipe 101. The aeration chamber 10, in addition, the aeration chamber 10 can be connected with a biogas digester to further treat the exhaust gas.

As shown in Figure 4, the control scheme of the present invention includes a controller 11, a power supply 111, a display panel 112, a temperature sensor 113, a liquid level sensor 114, a second liquid level sensor 115, a water outlet switch 119, an auxiliary valve 4, and an auxiliary pump 3. Metering pump 6 , valve 1161 , valve pump 1162 , second valve 1171 , second valve pump 1172 and heater 118 . It should be noted that both the liquid level sensor 114 and the second liquid level sensor 115 are capacitive sensors. Since these two liquid level sensors work in a sewage environment, grease and sewage will be attached to the sensors during work. Therefore, other types Sensors such as optical sensors are not suitable for this working environment.

As shown in Figure 4, the power supply 111 supplies power to the entire control system. The display panel can display the temperature of sewage, the switch status of various sensors, pumps and heaters, and the display panel has an alarm function. When the temperature and various control components are abnormal A warning appears. The signal of temperature sensor 113 passes to controller 11 and heater 118 is controlled; When the liquid level sensor 114 in isolation box 8 senses the grease above the sewage, signal is passed to controller 11 and opens grease outlet valve 1161 And the valve pump 1162, the grease is discharged from the system through the grease outlet 82 and collected. When the liquid level sensor 114 detects no grease, the controller 11 closes the grease outlet valve 1161 and the valve pump 1162, so that the grease in the isolation box is in the sewage When the second liquid level sensor 115 in the auxiliary isolation box 5 detects the grease above the sewage, the signal will be sent to the controller 11 and the second valve 1171 and the second valve pump 1172 will be opened to discharge the grease The second grease outlet is discharged from the system and collected. When the second liquid level sensor 115 detects no grease, the controller 11 closes the second valve 1171 and the second valve pump 1172 and opens the water outlet switch 119, the auxiliary valve 4 and the auxiliary valve 4. The pump 3 pumps the sewage into the solid interceptor 9 for secondary separation. At the same time, the metering pump 6 is turned on to quantitatively pump the oil-decomposing enzyme into the auxiliary isolation box 5 to decompose the oil into harmless substances soluble in water.

It should be noted that the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the present invention; and, for those of ordinary skill in the art, improvements can be made according to the above description Or transformation, and all these improvements and transformations should belong to the protection scope of the appended claims of the present invention.

Claims (9)

1. A full-automatic domestic sewage grease impurity separation device is characterized in that it comprises: a domestic sewage inlet, a solid interceptor connected to the inlet, the solid interceptor is connected with an isolation box, and after the sewage is fully deposited in the isolation box, it flows into and The auxiliary isolation box connected to the isolation box, the auxiliary isolation box outlet is connected with an auxiliary pump to guide the sewage into the solid interceptor for secondary separation. After the grease is separated from the sewage, it flows into the domestic sewage pipe through the outlet. The isolation box and the auxiliary isolation box are provided with communication the aeration chamber; A liquid level sensor is provided above the isolation box close to the grease outlet of the auxiliary isolation box. When the liquid level sensor detects the grease above the sewage in the isolation box, the grease outlet valve and the valve pump are opened to discharge the grease out of the system through the grease outlet. And collect, when the said liquid level sensor detects no grease, close the grease outlet valve and the valve pump, so that the grease in the isolation box accumulates to a sufficient thickness on the sewage. 2. The fully automatic domestic sewage grease impurity separation device according to claim 1, wherein the solid interceptor is provided with a filter screen; There is an inlet of the isolation box on the isolation box, an inlet baffle is arranged near the entrance of the isolation box, and an outlet baffle is arranged far away from the entrance of the isolation box, and the inlet baffle can guide the sewage entering the oil isolation box to flow to the bottom of the isolation box , the outlet baffle can divert the outflow of sewage. 3. The fully automatic domestic sewage grease impurity separation device according to claim 1, characterized in that, at least one heater is included in the isolation box, and the heater is provided with a temperature sensor to control the temperature of the sewage, Make the grease in the sewage have sufficient fluidity. After the sewage is heated and precipitated in the isolation box, because the density of the oil is lower than that of water, the grease floats above the sewage. When the sewage reaches the corresponding liquid level, it flows into the auxiliary isolation connected with the isolation box. box; The auxiliary isolation box is connected with a metering pump, and the metering pump controls the oil-decomposing enzyme pumped into the auxiliary isolation box, and the oil-decomposing enzyme decomposes the oil in the auxiliary isolation box into water-soluble harmless substances. 4. The fully automatic domestic sewage grease and impurity separation device according to claim 3, wherein a water outlet is opened on the auxiliary isolation box, and a water outlet switch is connected to the water outlet; The water outlet switch is connected with a hose, and the hose is connected with an auxiliary pump through an auxiliary valve, and the auxiliary pump guides the sewage into the solid interceptor for secondary separation. 5. The fully automatic domestic sewage grease impurity separation device according to claim 4, characterized in that a grease outlet is provided in the middle of the contact surface between the auxiliary isolation box and the isolation box, and a valve is arranged on the grease outlet, and the valve A valve pump is connected. When the grease in the isolation box accumulates to a sufficient thickness on the sewage, the valve and the valve pump are opened, and the grease is discharged out of the system through the grease outlet and collected. 6. The fully automatic domestic sewage grease and impurity separation device according to claim 5, characterized in that there is a pass on the contact surface between the auxiliary isolation box and the isolation box, and the pass is located on the upper part of the connection surface between the isolation box and the auxiliary isolation box , when the liquid level of the sewage reaches the height of the pass, the sewage flows into the auxiliary isolation box from the pass. 7. The fully automatic domestic sewage grease impurity separation device according to claim 6, characterized in that, the auxiliary isolation box has a second grease outlet below the water outlet switch, and a second valve is arranged on the second grease outlet , the second valve is connected with a second valve pump, when the grease in the auxiliary isolation tank accumulates to a sufficient thickness on the sewage, the second valve and the second valve pump are opened, the grease is discharged from the system through the second grease outlet and carried out collect. 8. The fully automatic domestic sewage grease and impurity separation device according to claim 7, characterized in that a second liquid level sensor is arranged at the outlet switch, and the second liquid level sensor detects that the sewage above the auxiliary isolation box When there is grease, open the second valve and the second valve pump, discharge the grease from the system through the second grease outlet and collect it; when the second liquid level sensor detects no grease, close the second valve and the second valve pump and Turn on the water outlet switch, auxiliary valve and auxiliary pump, and pump the sewage into the solid interceptor for secondary separation. 9. The fully automatic domestic sewage grease impurity separation device according to claim 8, characterized in that, the isolation box and the auxiliary isolation box are provided with an isolated aeration chamber connected to each other, and the aeration chamber can reduce the isolation box and the auxiliary isolation box. The air pressure in the tank, and the gas generated during the sewage separation process is isolated and discharged; the sewage after the secondary separation is diverted by the outlet baffle, and finally flows into the domestic sewage pipe through the outlet.