CN111237774A - An incinerator flue gas cooling and purification system - Google Patents

Abstract

The invention discloses a system for cooling and purifying flue gas of an incinerator, comprising an incineration component, including a furnace body, a combustion chamber, a baffle, an ash chamber and a fume exhaust channel, wherein the baffle is arranged in the furnace body to remove The inner space of the furnace body is divided into a combustion chamber and an ash accumulation chamber, and the smoke exhaust channel is arranged on the top of the furnace body and communicates with the outside; the flue gas purification component includes a soot deposition part, a flue gas cooling part and a gas-water separation part , the soot deposition member is arranged in the furnace body and communicated with the smoke exhaust passage, and the flue gas cooling member and the gas-water separation member are arranged on the smoke exhaust passage; It is discharged after cooling and purification treatment, which reduces the pollution to the environment. It is beneficial to collect soot through the ash discharger, and organize the soot to fly outside the furnace, which is convenient for disposal.

Description

An incinerator flue gas cooling and purification system

technical field

The invention relates to the field of incinerator flue gas treatment, in particular to an incinerator flue gas cooling and purification system.

Background technique

With the continuous development of the economy and the improvement of people's living standards, environmental protection has gradually become a problem that must be faced in the sustainable development of the country. In China, religious culture has a history of thousands of years of development. On the fifteenth of every month and on New Year’s Day, temple fairs are popular to burn incense and worship Buddha; under Chinese traditional culture, paper money is also burned in every major cemetery during the Qingming Festival and in July and a half every year. . These activities will directly generate a large amount of smoke and soot, pollute the surrounding environment, affect human health, and even cause fires.

Under the new situation, incinerators are gradually being promoted and applied. The incinerators are mainly used to burn tickets, paper products, etc., as well as clothing, etc. Although the incinerators limit the incineration location, it can avoid the random drift of burning magazines and their possible causes. However, the combustion of materials will inevitably generate high-temperature flue gas with a temperature higher than 500 ℃, and the flue gas is doped with a large amount of particulate pollutants. The concentration of particulate matter is strictly limited, because the flue gas temperature is high and cannot be directly treated by conventional purification systems.

According to the above analysis, reasonable and efficient incinerator cooling and flue gas purification technology is the main technical problem faced by the wide application of incinerators. It is necessary to develop a flue gas discharge pipe that is not on the top of the incinerator and can effectively cool and purify the flue gas. Furnace flue gas cooling and purification system, promote the promotion and use of incinerators nationwide, and reduce the impact of memorial activities on the environment and human health.

SUMMARY OF THE INVENTION

The purpose of this section is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments, and some simplifications or omissions may be made in this section and in the abstract and title of the application to avoid obscuring this section, the description The abstract and title are intended to be ambiguous and such simplification or omission should not be used to limit the scope of the invention.

The present invention has been made in view of the above-mentioned and/or problems existing in the prior art.

Therefore, the technical problem to be solved by the present invention is that the temperature of the flue gas discharged from the combustion of the traditional incinerator is too high, and the discharged flue gas is not effectively treated and seriously pollutes the environment.

In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions: an incinerator flue gas cooling and purification system, including an incineration component, including a furnace body, a combustion chamber, a clapboard, an ash chamber and a smoke exhaust channel, the partition The plate is arranged in the furnace body, and the inner space of the furnace body is divided into a combustion chamber and an ash accumulation chamber, and the smoke exhaust passage is arranged on the top of the furnace body and communicates with the outside; the flue gas purification assembly includes a soot depositing part , a flue gas cooling member and a gas-water separation member, the soot deposition member is arranged in the furnace body and communicates with the smoke exhaust passage, and the flue gas cooling member and the gas-water separation member are arranged on the smoke exhaust passage.

As a preferred solution of the incinerator flue gas cooling and purification system of the present invention, wherein: the soot depositing member penetrates through the partition plate and communicates with the combustion chamber and the soot depositing chamber; the top of the soot depositing member is provided with a The first filter element is provided with an ash discharge element at the bottom.

As a preferred solution of the incinerator flue gas cooling and purification system of the present invention, wherein: the first filter element includes a first filter screen and a flue gas guide plate, and the first filter screen) is arranged on the smoke Inside of the air guide plate.

As a preferred solution of the incinerator flue gas cooling and purification system of the present invention, wherein: the flue gas cooling member includes a liquid accumulation pool, a suction pump, a spray pipe and a heat conduction member, and the suction pump communicates with the The liquid pool and the spray pipe, the heat-conducting element is arranged above the liquid pool, and the end of the spray pipe is arranged above the heat-conducting element.

As a preferred solution of the incinerator flue gas cooling and purification system of the present invention, wherein: the ash discharge member includes a liquid storage chamber, a liquid discharge groove and a liquid scraping member, and the liquid discharge groove is arranged in the liquid storage chamber. On the side of the chamber, the wiper is arranged on the top of the liquid storage chamber.

As a preferred solution of the incinerator flue gas cooling and purification system of the present invention, wherein: the wiper member includes a floating plate, a first transmission group, a scraper and a second transmission group, and the floating plate is arranged on the In the liquid storage chamber, the lower bottom surface of the scraper coincides with the upper top surface of the liquid storage chamber, and the first transmission group and the second transmission group are arranged on the inner side wall of the soot deposition member;

As a preferred solution of the incinerator flue gas cooling and purification system of the present invention, wherein: the first transmission group includes a first rack, a first transmission wheel, a driven wheel and a first driving wheel, the first The rack is vertically arranged on the floating plate, the first rack is meshed with the first transmission wheel, the first transmission wheel and the driven wheel are arranged on the same shaft, the driven wheel and the first driving wheel meshing; the second gear set includes a second rack and a second transmission wheel, the second rack is arranged at the end of the scraper, and the second rack and the second transmission wheel are meshed; the first A transmission wheel, the first driving wheel and the second transmission wheel are gears whose teeth do not cover the entire circumference.

As a preferred solution of the incinerator flue gas cooling and purification system of the present invention, wherein: the inner side wall of the soot deposition member is provided with a liquid guide groove, and the liquid guide groove is connected with the liquid accumulation pool through a pipeline.

As a preferred solution of the incinerator flue gas cooling and purification system of the present invention, wherein: the gas-water separation element includes an exhaust fan and a cyclone dust collector, and the exhaust fan is arranged in the cyclone dust collector.

As a preferred solution of the incinerator flue gas cooling and purification system of the present invention, wherein: a water inlet valve, a first drain valve, a first control valve and a second control valve are arranged on the outside of the liquid accumulation pool. The first control valve is arranged on the spray pipe, the second control valve is arranged on the pipeline; a second drain valve is arranged below the cyclone dust collector.

Beneficial effects of the invention: the system cools and purifies the flue gas emitted from the incinerator combustion and discharges it, which reduces the pollution to the environment.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort. in:

1 is a schematic diagram of the overall structure of an incinerator flue gas cooling and purification system according to an embodiment provided by the present invention;

2 is a schematic structural diagram of a flue gas guide plate in an incinerator flue gas cooling and purification system according to an embodiment provided by the present invention;

3 is a schematic structural diagram of a flue gas cooling member in an incinerator flue gas cooling and purification system according to an embodiment provided by the present invention;

4 is a schematic diagram of a slanted view structure of a flue gas deposition member in an incinerator flue gas cooling and purification system according to an embodiment of the present invention;

5 is a schematic diagram showing the internal structure of the flue gas deposition member in the incinerator flue gas cooling and purification system according to an embodiment of the present invention;

6 is a schematic structural diagram showing a drain tank in an incinerator flue gas cooling and purification system according to an embodiment of the present invention;

7 is a schematic structural diagram showing an ash discharge member in an incinerator flue gas cooling and purification system according to an embodiment of the present invention;

8 is a schematic structural diagram of a wiper in an incinerator flue gas cooling and purification system according to an embodiment of the present invention;

9 is a schematic top view of a cyclone dust collector in an incinerator flue gas cooling and purification system according to an embodiment of the present invention.

Detailed ways

In order to make the above objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Many specific details are set forth in the following description to facilitate a full understanding of the present invention, but the present invention can also be implemented in other ways different from those described herein, and those skilled in the art can do so without departing from the connotation of the present invention. Similar promotion, therefore, the present invention is not limited by the specific embodiments disclosed below.

Next, the present invention is described in detail with reference to the schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional views showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not be limited here. The scope of protection of the present invention. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in the actual production.

Still further, reference herein to "one embodiment" or "an embodiment" refers to a particular feature, structure, or characteristic that may be included in at least one implementation of the present invention. The appearances of "in one embodiment" in various places in this specification are not all referring to the same embodiment, nor are they separate or selectively mutually exclusive from other embodiments.

Example 1

1, 2 and 5, the present embodiment provides an incinerator flue gas cooling and purification system, including an incineration assembly 100, including a furnace body 101, a combustion chamber 102, a partition 103, an ash chamber 104 and a smoke exhaust The channel 105, the partition plate 103 is arranged in the furnace body 101, and the inner space of the furnace body 101 is divided into the combustion chamber 102 and the ash chamber 104, and the smoke exhaust channel 105 is arranged on the top of the furnace body 101 and communicates with the outside; the flue gas purification assembly 200 , including a soot deposition part 201, a flue gas cooling part 202 and a gas-water separation part 203, the soot deposition part 201 is arranged in the furnace body 101 and communicated with the exhaust passage 105, and the flue gas cooling part 202 and the gas-water separation part 203 are arranged in the exhaust gas on channel 105.

The soot deposition member 201 penetrates through the partition 103 and communicates with the combustion chamber 102 and the ash accumulation chamber 104; the soot deposition member 201 is provided with a first filter member 201a at the top and an ash discharge member 201b at the bottom.

The first filter element 201a includes a first filter screen 201a-1 and a fume guide plate 201a-2, and the first filter screen 201a-1 is disposed inside the fume guide plate 201a-2.

In this embodiment, the combustion chamber 102 of the incinerator is used to place the combustion material on the baffle 103 at the bottom of the incinerator for combustion, and the burned dust falls into the ash accumulation chamber 104 below, which is convenient for centralized collection and cleaning; The flue gas channel 105 is arranged on the top of the furnace body 101 and communicated with the combustion chamber 102, which is used to guide the flue gas generated by combustion to be discharged from the incinerator, and to cool and purify the flue gas during the discharge process.

Specifically, a soot depositing member 201 is provided at the end of the smoke exhaust passage 105 disposed in the combustion chamber 102, which is used for preliminarily filtering the soot, filtering the solid particles entrained in the soot depositing member 201, and leaving the soot depositing member 201. The flue gas that sinks to the ash accumulation chamber 104 for centralized treatment is guided and filtered by the first filter element 201a and then falls into the ash discharge element 201b, and then falls into the ash accumulation chamber 104 after being processed by the ash discharge element 201b.

The flue gas guide plate 201a-2 is of a hollow circular truncated structure, and the inner side wall is provided with a helical rocker. The rocker is arranged in the circular platform in the form of a circular array, which drains the air passing through the flue gas guide plate 201a-2. The air rotates, thereby causing the solid particles in the air to generate centrifugal force, move to the inner side wall of the bottom of the soot depositing member 201, and slide down into the ash discharging member 201b.

The first filter screen 201a-1 includes two parts, the upper part is vertically arranged, and the lower part is inclined, the lower end of which points to the side wall of the soot depositing member 201 to guide the filtered solid particles to fall along the wall.

It should be noted that the furnace body 101 is provided with a furnace door and an air inlet louver, the furnace door is arranged on the side wall of the combustion chamber 102 , and the air inlet louver is arranged on the side wall of the ash accumulation chamber 104 . The furnace door is used to place the combustion product into the combustion chamber 102 from here, and the air inlet louver is used to circulate air to provide sufficient air for the combustion of the combustion product.

Example 2

4 to 8 , the present embodiment provides an incinerator flue gas cooling and purification system, including an incinerator assembly 100 , including a furnace body 101 , a combustion chamber 102 , a partition 103 , an ash chamber 104 and a smoke exhaust channel 105 , the partition plate 103 is arranged in the furnace body 101, and the inner space of the furnace body 101 is divided into a combustion chamber 102 and an ash chamber 104, and a smoke exhaust channel 105 is arranged on the top of the furnace body 101 and communicates with the outside; the flue gas purification assembly 200 includes The soot deposition part 201 , the flue gas cooling part 202 and the gas-water separation part 203 , the soot deposition part 201 is arranged in the furnace body 101 and communicates with the flue gas exhaust passage 105 ; superior.

The ash discharge member 201b includes a liquid storage chamber 201b-1, a liquid discharge groove 201b-2 and a wiper member 201b-3. The liquid discharge groove 201b-2 is arranged on the side of the liquid storage chamber 201b-1, and the wiper member 201b-3 is arranged on the side of the liquid storage chamber 201b-1. The top of the liquid storage chamber 201b-1.

The wiper member 201b-3 includes a floating plate 401, a first transmission group 402, a scraper 403 and a second transmission group 404. The floating plate 401 is arranged in the liquid storage chamber 201b-1, and the bottom surface of the scraper 403 is connected to the liquid storage chamber 201b. -1 The upper top surfaces are overlapped, and the first transmission group 402 and the second transmission group 404 are arranged on the inner side wall of the soot depositing member 201;

The first transmission group 402 includes a first rack 402a, a first transmission wheel 402b, a driven wheel 402c and a first driving wheel 402d, the first rack 402a is vertically arranged on the floating plate 401, the first rack 402a and the first The transmission wheel 402b meshes, the first transmission wheel 402b and the driven wheel 402c are arranged on the same shaft, and the driven wheel 402c meshes with the first driving wheel 402d; the second gear set 404 includes a second rack 404a and a second transmission wheel 404b, The second rack 404a is arranged at the end of the scraper 403, and the second rack 404a meshes with the second transmission wheel 404b; Circumferential gears.

In this embodiment, FIG. 5 uses the method of cutting off one side of the flue gas cooling member 202 to show its internal structure. The first filter member 201a is arranged above to guide and filter the flue gas, and the ash discharge member 201b is arranged on the Below, the filtered combustion particulate matter is processed and collected; specifically, the ash discharge member 201b communicates with the ash accumulation chamber 104 through the liquid discharge groove 201b-2, and the liquid discharge groove 201b-2 and the liquid storage chamber 201b-1 are separated by a plate , water is placed in the liquid storage chamber 201b-1, and a floating plate 401 is arranged in the liquid storage chamber 201b-1. The floating plate 401 can periodically move up and down in the liquid storage chamber 201b-1. The water level of the floating plate 401 is kept at a height at which the floating plate 401 can be immersed when it moves downward, and the floating plate moves upward to a stop position so that its upper surface is flush with the upper surface of the liquid storage chamber.

The water in the liquid storage chamber 201b-1 evaporates and adheres to the particles floating in the soot depositing member 201, which is helpful for their deposition.

The floating plate 401 is provided with holes for allowing water to pass through, so that the floating plate 401 can be immersed in water. After the floating plate comes out of the water, its upper surface will be wet with water, and the particles falling from above will adhere to its upper surface, The wiper member 201b-3 is kept at a position where the lower surface of the wiper member 201b-3 is flush with the upper surface of the liquid storage chamber 201b-1, and it performs lateral periodic movement at the horizontal position here; therefore, the action process of the dust discharge member 201b is a floating plate 401 is immersed in water and then moved up until the upper surface is flush with the upper surface of the liquid storage chamber 201b-1, and then stops at this position for a period of time. The position of 201b-2 is moved to the position of the drain tank 201b-2, and the water and particles attached to the upper surface of the floating plate 401 are scraped to the drain tank 201b-2 to flow into the ash accumulation chamber 104. Preferably, a wiper The speed of 201b-3's movement is adjusted as much as possible to the extent that the water on the surface of the floating plate is scraped away before it falls through the holes in it.

The first transmission group 402 is used to control the floating plate 401 to perform periodic up and down movement, specifically a movement process of moving downward, moving upward, and standing still in one cycle; It is composed of two racks placed opposite to each other. The first transmission wheel 402b is a gear structure with gear teeth arranged in the upper half of the circumference area, and is arranged between the first racks 402a. When the first transmission wheel 402b rotates, They will mesh with the two racks at different times respectively, and bring about opposite transmission effects; referring to FIG. 8 , if the teeth on the first transmission wheel 402b mesh with the rack on the left side of the first rack 402a shown in the figure, the floating The plate 401 is driven to move downward, when the upper teeth of the first transmission wheel 402b mesh with the right rack of the first rack 402a shown in the figure, the floating plate 401 is driven to move up, so as to realize the up and down movement reciprocating motion.

A driven wheel 402c is provided with the first transmission wheel 402b, the driven wheel 402c is a full-tooth gear, and the first driving wheel 402d meshing with it is of a similar structure to the first transmission wheel 402b, but the circumference ratio of the teeth distributed on it It should be set according to the situation; it should be noted that, to define a gear structure similar to the first transmission wheel 402b where the gear teeth do not cover the entire circumference, the ratio of the arc length of the gear teeth arranged on the circumference to the arc length of no gear teeth is the circumference ratio. , this setting affects the ratio of the working time to the resting time of the gear meshed with it, such as the structure of the driven wheel 402c and the first driving wheel 402d, the driven wheel 402c rotates when it is engaged and driven, and then the first driving wheel 402b drives the floating plate When the floating plate 401 moves up and down, the floating plate 401 will not be triggered when it is not meshed; therefore, the floating plate 401 can be moved up, moved down and left still as a whole. , the number of teeth on the first driving wheel 402d is the same as the number of teeth on the driven wheel 402c so that the driven wheel 402c can complete one rotation during the meshing process, so as to achieve the effect of periodic motion.

The meshing structure and principle of the second rack 404a and the second transmission wheel 404b are the same as those of the first transmission wheel 402b and the first transmission wheel 402b, and will not be described again.

Example 3

1, 3 and 9, the difference between the technology and the previous embodiment is that the flue gas cooling member 202 includes a liquid accumulation pool 202a, a suction pump 202b, a spray pipe 202c, a heat conduction member 202d, and a suction pump 202b. The liquid accumulation pool 202a is communicated with the spray pipe 202c, the heat conducting member 202d is arranged above the liquid accumulation pool 202a, and the end of the spray pipe 202c is arranged above the heat conduction member 202d.

The air-water separator 203 includes an exhaust fan 203a and a cyclone 203b, and the exhaust fan 203a is arranged in the cyclone 203b.

A water inlet valve 202a-1, a first drain valve 202a-2, a first control valve 202a-3 and a second control valve 202a-4 are arranged on the outside of the sump 202a, and the first control valve 202a-3 is arranged on the spray pipe On 202c, a second control valve 202a-4 is arranged on the pipeline 201c-1; a second drain valve 203b-1 is arranged below the cyclone 203b.

A liquid guiding groove 201c is provided on the inner side wall of the soot depositing member 201, and the liquid guiding groove 201c is connected with the liquid accumulation pool 202a through a pipeline 201c-1.

When the flue gas passes through the flue gas cooling member 202, the heat-conducting member 202d absorbs heat from the flue gas to cool the flue gas. At the same time, the water pump 202b extracts water from the liquid accumulation pool 202a and sprays and cools it from the spray pipe 202c. The element 202d is cooled, and the flue gas is cooled at the same time.

The flue gas with moisture enters the gas-water separator 203 for gas-water separation. As shown in Figure 9, the flue gas with moisture enters the cyclone dust collector 203b and rotates along its inner wall, causing water to adhere to its inner side under the action of centrifugal force. It should be noted that the position of the exhaust pipe port in the gas-water separator 203 is lower than the position of the air inlet of the gas-water separator 203, so as to ensure that the incoming flue gas has a sufficient travel path for Rotation and separation of air and water, the exhaust fan 203a is installed in the exhaust pipe.

The liquid guiding tank 201c is used to add water to the liquid storage chamber 201b-1. The temperature in the furnace is too high and the evaporation is large, so it is necessary to add water to the liquid storage chamber 201b-1 at all times to maintain the water level.

It is important to note that the construction and arrangement of the present application shown in the various exemplary embodiments are merely exemplary. Although only a few embodiments have been described in detail in this disclosure, those who refer to this disclosure will readily appreciate that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application are possible (eg, changes in size, dimensions, structure, shape, and proportions of various elements, as well as parameter values (eg, temperature, pressure, etc.), mounting arrangement, use of materials, color, orientation, etc.). For example, elements shown as integrally formed may be constructed of multiple parts or elements, the positions of elements may be inverted or otherwise varied, and the nature or number or positions of discrete elements may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any "mean-plus-function" clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operation and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications still falling within the scope of the appended claims.

Furthermore, in order to provide a concise description of example embodiments, all features of an actual implementation (ie, those that are not relevant to the best mode currently considered for carrying out the invention, or those that are not relevant for carrying out the invention, may not be described in order to provide a concise description of example embodiments) feature).

It should be appreciated that during the development of any actual implementation, such as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but would be a routine undertaking of design, fabrication, and production without undue experimentation for those of ordinary skill having the benefit of this disclosure .

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be Modifications or equivalent substitutions without departing from the spirit and scope of the technical solutions of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. The utility model provides an incinerator flue gas cooling and clean system which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the incineration assembly (100) comprises a furnace body (101), a combustion chamber (102), a partition plate (103), an ash deposition chamber (104) and a smoke exhaust channel (105), wherein the partition plate (103) is arranged in the furnace body (101) and divides the inner space of the furnace body (101) into the combustion chamber (102) and the ash deposition chamber (104), and the smoke exhaust channel (105) is arranged at the top of the furnace body (101) and is communicated with the outside;

the flue gas purification assembly (200) comprises an ash deposition part (201), a flue gas cooling part (202) and a gas-water separation part (203), wherein the ash deposition part (201) is arranged in the furnace body (101) and communicated with the smoke exhaust channel (105), and the flue gas cooling part (202) and the gas-water separation part (203) are arranged on the smoke exhaust channel (105).

2. The incinerator flue gas cooling and scrubbing system of claim 1 wherein: the soot deposition piece (201) penetrates through a partition plate (103) and is communicated with the combustion chamber (102) and the soot deposition chamber (104);

the top of the soot deposition part (201) is provided with a first filter (201a), and the bottom is provided with an ash discharge part (201 b).

3. The incinerator flue gas cooling and scrubbing system of claim 2 wherein: the first filter element (201a) comprises a first filter screen (201a-1) and a smoke guide plate (201a-2), and the first filter screen (201a-1) is arranged on the inner side of the smoke guide plate (201 a-2).

4. The incinerator flue gas cooling and scrubbing system of claim 1 wherein: the flue gas cooling part (202) comprises a liquid accumulation pool (202a), a water suction pump (202b), a spray pipe (202c) and a heat conducting part (202d), wherein the water suction pump (202b) is communicated with the liquid accumulation pool (202a) and the spray pipe (202c), the heat conducting part (202d) is arranged above the liquid accumulation pool (202a), and the end part of the spray pipe (202c) is arranged above the heat conducting part (202 d).

5. The incinerator flue gas cooling and scrubbing system of claim 3 wherein: the ash discharging part (201b) comprises a liquid storage chamber (201b-1), a liquid discharging groove (201b-2) and a liquid scraping part (201b-3), the liquid discharging groove (201b-2) is formed in the side face of the liquid storage chamber (201b-1), and the liquid scraping part (201b-3) is arranged at the top of the liquid storage chamber (201 b-1).

6. The incinerator flue gas cooling and scrubbing system of claim 5 wherein: the liquid scraping piece (201b-3) comprises a floating plate (401), a first transmission group (402), a scraping plate (403) and a second transmission group (404), the floating plate (401) is arranged in the liquid storage chamber (201b-1), the lower bottom surface of the scraping plate (403) is coincided with the upper top surface of the liquid storage chamber (201b-1), and the first transmission group (402) and the second transmission group (404) are arranged on the inner side wall of the soot deposition piece (201).

7. The incinerator flue gas cooling and scrubbing system of claim 6 wherein: the first transmission set (402) comprises a first rack (402a), a first transmission wheel (402b), a driven wheel (402c) and a first driving wheel (402d), the first rack (402a) is vertically arranged on the floating plate (401), the first rack (402a) is meshed with the first transmission wheel (402b), the first transmission wheel (402b) and the driven wheel (402c) are arranged on the same shaft, and the driven wheel (402c) is meshed with the first driving wheel (402 d);

the second gear set (404) comprises a second rack (404a) and a second transmission wheel (404b), the second rack (404a) is arranged at the end part of the scraper (403), and the second rack (404a) is meshed with the second transmission wheel (404 b);

the first transmission wheel (402b), the first driving wheel (402d) and the second transmission wheel (404b) are gears with teeth not fully distributed on the whole circumference.

8. The incinerator flue gas cooling and scrubbing system of claim 7 wherein: the inner side wall of the soot deposition part (201) is provided with a liquid guide groove (201c), and the liquid guide groove (201c) is connected with the liquid accumulation groove (202a) through a pipeline (201 c-1).

9. The incinerator flue gas cooling and scrubbing system of claim 4 wherein: the gas-water separation piece (203) comprises an exhaust fan (203a) and a cyclone dust collector (203b), and the exhaust fan (203a) is arranged in the cyclone dust collector (203 b).

10. The incinerator flue gas cooling and scrubbing system of claim 9 wherein: a water inlet valve (202a-1), a first water discharge valve (202a-2), a first control valve (202a-3) and a second control valve (202a-4) are arranged on the outer side of the liquid accumulation pool (202a), the first control valve (202a-3) is arranged on the spray pipe (202c), and the second control valve (202a-4) is arranged on the pipeline (201 c-1);

a second drain valve (203b-1) is arranged below the cyclone dust collector (203 b).

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