Spraying purification system

Abstract

The utility model provides a spraying purification system, and relates to the technical field of waste gas treatment. The spraying purification system comprises a base, a first spraying tower, a first sprayer and a first water pump. A liquid collecting tank is formed in the base, a first air inlet and a first air outlet are formed in the first spraying tower, a first opening is formed in the bottom of the first spraying tower, the first spraying tower is arranged on the base, and the first opening extends into the liquid collecting tank. The first spray thrower is arranged in the first spray tower, and the first water pump is communicated with the liquid collecting tank and the first spray thrower. Solid substances generated by reaction of spraying liquid and harmful substances directly enter the liquid collecting tank through the first opening along the inner wall of the first sprayer, so that the solid substances can be prevented from being accumulated and blocked in the first spraying tower. After the tail gas is treated, solid substances in the liquid collecting tank can be directly cleaned, and residual solid substances in the tower kettle of the first spray tower can be cleaned through the first opening, so that the procedure of disassembling a sealing head of the tower kettle can be omitted, and the cleaning and maintenance process is relatively convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste gas treatment, and in particular to a spraying purification system. BACKGROUND

[0002] The spraying tower (also known as a washing tower) is a commonly used device in industrial tail gas purification, and its core principle is to use spraying liquid to fully contact with industrial tail gas, and to remove harmful components in the tail gas through physical or chemical actions such as dissolution, adsorption, and neutralization, so as to achieve standard emission of the tail gas.

[0003] Among them, the industrial tail gas will generate deposits after being washed in the spraying tower, and the deposits will accumulate in the tower kettle of the spraying tower and block the outlet pipeline of the tower kettle. CONTENT OF THE UTILITY MODEL

[0004] The spraying purification system provided by the embodiments of the present application is used to solve the problem of blocking of the outlet pipeline by the deposits in the spraying tower.

[0005] The spraying purification system provided by the embodiments of the present application comprises:

[0006] A base, wherein a liquid collecting groove is formed in the base;

[0007] A first spraying tower, wherein a first gas inlet and a first gas outlet are formed in the first spraying tower, a first opening is arranged at the bottom of the first spraying tower, the first spraying tower is arranged on the base, the first opening extends into the liquid collecting groove, and the first opening is located below the liquid level of the spraying liquid in the liquid collecting groove;

[0008] A first sprayer, wherein the first sprayer is arranged in the first spraying tower;

[0009] A first water pump, wherein the first water pump is connected with the liquid collecting groove and the first sprayer.

[0010] In a possible implementation manner, the spraying purification system provided by the embodiments of the present application further comprises a second spraying tower, a second sprayer, and a second water pump, a second gas inlet and a second gas outlet are formed in the second spraying tower, a second opening is arranged at the bottom of the second spraying tower, the second spraying tower is arranged on the base, the second opening extends into the liquid collecting groove, and the second opening is located below the liquid level of the spraying liquid in the liquid collecting groove;

[0011] The second gas outlet is connected with the first gas inlet, the second gas inlet is used to receive tail gas to be sprayed, and the second water pump is connected with the liquid collecting groove and the second sprayer.

[0012] In a possible implementation manner, the spraying purification system provided by the embodiments of the present application further comprises an overflow weir, wherein the overflow weir is arranged in the liquid collecting groove, the overflow weir divides the liquid collecting groove into an overflow area and a discharge area, the overflow area is used to receive spraying liquid, and the discharge area is used to discharge sewage.

[0013] The first opening is located in the overflow area, and the first water pump is communicated with the overflow area; and the second opening is located in the discharge area, and the second water pump is communicated with the discharge area.

[0014] In a possible implementation, the spray purification system provided by the embodiment of the present application further comprises a water seal tank, the water seal tank has a liquid inlet, a liquid outlet, a gas inlet and a gas outlet, the liquid outlet is located above the liquid inlet and the gas inlet, the liquid outlet is communicated with the overflow area, so that the spray liquid enters the overflow area through the liquid inlet, the inside of the water seal tank and the liquid outlet in sequence;

[0015] The gas inlet is communicated with the first exhaust port, so that the tail gas is discharged to the outside through the first exhaust port, the gas inlet, the spray liquid in the inside of the water seal tank and the gas outlet in sequence.

[0016] In a possible implementation, the spray purification system provided by the embodiment of the present application further comprises a gas distributor, the gas distributor is arranged in the water seal tank, the gas distributor is communicated with the gas inlet, and a plurality of gas holes are arranged on the gas distributor, so as to uniformly disperse the tail gas into the spray liquid in the water seal tank.

[0017] In a possible implementation, the spray purification system provided by the embodiment of the present application further comprises a second spray pipe, a first blowdown pipe and a switching valve, the water outlet end of the second water pump has a first water outlet and a second water outlet, the second spray pipe is communicated with the first water outlet and the second spray, and the first blowdown pipe is used for communicating the second water outlet with an external sewage pool.

[0018] The switching valve is arranged at the water outlet end of the second water pump, and the switching valve has a first state and a second state; in the first state, the switching valve opens the first water outlet and closes the second water outlet; in the second state, the switching valve opens the second water outlet and closes the first water outlet.

[0019] In a possible implementation, the spray purification system provided by the embodiment of the present application further comprises a second blowdown pipe, the bottom of the base is provided with a liquid discharge port communicated with the discharge area of the liquid collecting tank, and the second blowdown pipe is used for communicating the liquid discharge port with an external sewage pool.

[0020] The second blowdown pipe is configured to discharge the residues at the bottom of the discharge area.

[0021] In a possible implementation, the spray purification system provided by the embodiment of the present application further comprises an air inlet pipe, the air inlet pipe is communicated with the second air inlet, so as to convey the tail gas into the second spray tower.

[0022] In a possible implementation, the spray purification system provided by the embodiment of the present application further comprises a cover plate, the cover plate is detachably connected with the base, and the cover plate covers the liquid collecting tank.

[0023] In one possible implementation, the spray purification system provided in this application embodiment has a liquid collection tank with a depth of 500mm to 6000mm and a distance of 500mm to 3000mm between the first opening and the bottom of the liquid collection tank.

[0024] This utility model provides a spray purification system, including a base, a first spray tower, a first sprayer, and a first water pump. A liquid collection tank is provided on the base, and a first air inlet and a first exhaust outlet are provided on the first spray tower. A first opening is provided at the bottom of the first spray tower, which is mounted on the base, with the first opening extending into the liquid collection tank. The first sprayer is located inside the first spray tower, and the first water pump connects the liquid collection tank and the first sprayer. Solid substances generated by the reaction of the spray liquid with harmful substances can, under the influence of gravity, flow along the inner wall of the first sprayer through the first opening directly into the liquid collection tank, thus preventing the accumulation and blockage of solid substances within the first spray tower. After the exhaust gas is treated, the solid substances in the liquid collection tank can be directly cleaned, as can the residual solid substances in the bottom of the first spray tower, which can be cleaned through the first opening. This eliminates the need to disassemble the bottom of the tower, making cleaning and maintenance more convenient. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0026] Figure 1 This is a schematic diagram of the structure of the spray purification system provided in the embodiments of this application;

[0027] Figure 2 for Figure 1 A magnified view of the area indicated by A in the image;

[0028] Figure 3 for Figure 1 A magnified view of the area indicated by B in the image;

[0029] Figure 4 for Figure 1 An enlarged view of the region indicated by C in the image.

[0030] Explanation of reference numerals in the attached figures:

[0031] 100. Base; 110. Collection tank; 111. Overflow area; 112. Discharge area;

[0032] 210. First spray tower; 211. First air inlet; 212. First exhaust outlet; 213. First opening; 220. First sprayer; 230. First water pump; 231. First spray pipe;

[0033] 310, second spray tower; 311, second air inlet; 312, second air outlet; 313, second opening; 320, second sprayer; 330, second water pump; 331, second spray pipe;

[0034] 400, overflow weir;

[0035] 500, water seal tank; 510, liquid inlet; 520, liquid outlet; 530, gas inlet; 540, gas outlet; 550, gas distributor;

[0036] 610, first blowdown pipe; 620, second blowdown pipe;

[0037] 700, air inlet pipe;

[0038] 800, cover plate;

[0039] 900, connecting pipe.

[0040] The specific embodiments of the present application have been shown by way of example in the above figures, and will be described in more detail hereafter. These figures and this written description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate the inventive concept to one of ordinary skill in the art by reference to a particular embodiment. DETAILED DESCRIPTION

[0041] The exemplary embodiments will be described in detail herein with reference to the attached drawings. In the following description, like reference numerals refer to like elements, unless the context clearly dictates otherwise. The following description is not intended to limit the scope of the present application in any way, but rather to illustrate the inventive concept as set forth in the appended claims.

[0042] The terms "first", "second", "third", and "fourth" (if any) and the like in the description and in the claims, if any, of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the use of these terms herein is to distinguish one element from another element(s), and does not imply a sequence or order of execution. Further, these terms can be used interchangeably with each other in different instances in this disclosure to refer to a similar element or a similar embodiment without necessarily referring to a specific, sequential or chronological order. Further, the terms "comprises", "comprising", "includes", "including" and the like, if any, are used herein in their open-ended, non-limiting sense, that is they mean and refer to combinations including but not limited to the listed elements or steps, it being specifically contemplated that additional elements or steps can be present with "consisting of", "consisting essentially of", and the like are to be understood to be open ended, allowing for the presence of additional such elements or steps not specifically recited.

[0043] As mentioned in the background art, the core principle of the spray tower is to use the spray liquid to fully contact with the industrial tail gas, and through the physical or chemical action such as dissolution, adsorption and neutralization, the harmful components in the tail gas are removed, so that the tail gas can be discharged up to the standard.

[0044] In the spray tower, the industrial tail gas after being washed by spraying will generate deposits and accumulate in the tower kettle of the spray tower, thereby blocking the outlet pipeline of the tower kettle.

[0045] For example, in the process of directly synthesizing silicate by using silicon powder, the product, together with raw materials and by-products, is produced in the form of gas phase from the reaction kettle. After condensation, the product is stored in the liquid phase and further purified by rectification. In this process, the non-condensable gas containing alcohol, silicate and high-boiling substances is treated as waste gas and can be discharged into the atmosphere only after reaching the standard. However, silicate is easily hydrolyzed into silica sol when it comes into contact with water, and the silica sol has high viscosity and is easy to block the outlet pipeline of the tower kettle of the spray tower.

[0046] In addition, after the outlet pipeline of the tower kettle is blocked, it is very inconvenient to clean up, which seriously affects the efficiency of the tail gas treatment.

[0047] In view of the above problems existing in the prior art, the utility model provides a spray purification system, including base, first spray tower, first sprayer and first water pump. The base is provided with a liquid collecting groove, the first spray tower is provided with a first air inlet and a first air outlet, and the bottom of the first spray tower is provided with a first opening. The first spray tower is arranged on the base, and the first opening extends into the liquid collecting groove. The first sprayer is arranged in the first spray tower, and the first water pump is connected with the liquid collecting groove and the first sprayer. The solid substances generated by the reaction of the spray liquid and the harmful substances can directly enter the liquid collecting groove along the inner wall of the first sprayer through the first opening under the action of gravity, so that the accumulation and blockage of the solid substances in the first spray tower can be avoided. After the tail gas treatment is completed, the solid substances in the liquid collecting groove and the solid substances remaining in the tower kettle of the first spray tower can be directly cleaned through the first opening, so that the process of disassembling the head of the tower kettle can be omitted, and the cleaning and maintenance process is relatively convenient.

[0048] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems will be described in detail in the following specific examples. The following specific examples can be combined with each other, and the same or similar concepts or processes may not be described again in some examples. The embodiments of the present application will be described below with reference to the drawings.

[0049] Reference Figures 1 to 4As shown, the spray purification system provided by the embodiment of the application comprises a base 100, a first spray tower 210, a first sprayer 220 and a first water pump 230. The base 100 is provided with a liquid collecting groove 110, the first spray tower 210 is provided with a first air inlet 211 and a first air outlet 212, and the bottom of the first spray tower 210 is provided with a first opening 213. The first spray tower 210 is arranged on the base 100, and the first opening 213 extends into the liquid collecting groove 110. The first sprayer 220 is arranged in the first spray tower 210, and the first water pump 230 is connected between the liquid collecting groove 110 and the first sprayer 220.

[0050] It can be understood that the liquid collecting groove 110 can be filled with spray liquid, which can react with harmful substances (such as gas, solid particles and smoke, etc.) in the tail gas and generate solid substances, so that the tail gas meets the emission standard. For example, the spray liquid can be a chemical reagent that reacts with harmful substances in the tail gas, or it can be clean water, which is not limited here. The bottom of the first spray tower 210 is provided with a first opening 213, that is, the bottom of the first spray tower 210 is not provided with a head.

[0051] The first opening 213 is below the liquid level of the spray liquid in the liquid collecting groove 110, so as to avoid leakage of the tail gas.

[0052] Referring to Figure 1 As shown, the tail gas enters the first spray tower 210 through the first air inlet 211, and the first water pump 230 delivers the spray liquid in the liquid collecting groove 110 to the first sprayer 220, so that the first sprayer 220 sprays and washes the tail gas in the first spray tower 210. The washed tail gas is discharged to the outside environment through the first air outlet 212.

[0053] The solid substances generated by the reaction of the spray liquid and the harmful substances can enter the liquid collecting groove 110 through the first opening 213 along the inner wall of the first sprayer 220 under the action of gravity, so as to avoid accumulation and blockage of the solid substances in the first spray tower 210. After the tail gas is treated, the solid substances in the liquid collecting groove 110 and the solid substances remaining in the tower kettle of the first spray tower 210 through the first opening 213 can be directly cleaned, so that the process of disassembling the head of the tower kettle is omitted, and the cleaning and maintenance process is more convenient.

[0054] In addition, the spray liquid in the first spray tower 210 flows back to the liquid collecting groove 110 through the first opening 213, so as to recycle the spray liquid and save costs.

[0055] Referring to Figure 1 and Figure 3As shown, in an embodiment, the first spray tower 210 is provided with a plurality of first spray devices 220, and the plurality of first spray devices 220 are in communication with the first water pump 230 through the first spray pipes 231. The inside of the first spray tower 210 is sequentially provided with a plurality of first spray positions from top to bottom, and each first spray position is provided with at least one first spray device 220. Each first spray device 220 is in communication with the water outlet of the first water pump 230.

[0056] The first air inlet 211 is located below the lowermost first spray position, and the first air outlet 212 is located at the top of the first spray tower 210. In this way, the tail gas flows from bottom to top in the first spray tower 210, and the spray liquid is sprayed from top to bottom. The tail gas and the spray liquid form countercurrent contact, so as to improve the efficiency of spray washing.

[0057] In addition, the inside of the first spray tower 210 is provided with a plurality of first spray devices 220 from top to bottom. When the tail gas flows from bottom to top in the first spray tower 210, the tail gas is subjected to multi-layer and multi-stage spray by the plurality of first spray devices 220, so as to make the harmful substances in the tail gas fully react with the spray liquid.

[0058] Specifically, referring to Figure 3 As shown, the inside of the first spray tower 210 is sequentially provided with three layers of first spray positions from top to bottom, and each layer of first spray positions can be provided with 3 to 5 first spray devices 220.

[0059] Referring to Figure 1 and Figure 3 As shown, in an embodiment, the spray purification system provided by the embodiment of the present application further comprises a second spray tower 310, a second spray device 320, and a second water pump 330. The second spray tower 310 is provided with a second air inlet 311 and a second air outlet 312. The bottom of the second spray tower 310 is provided with a second opening 313. The second spray tower 310 is arranged on the base 100, and the second opening 313 extends into the liquid collecting tank 110. The second air outlet 312 is in communication with the first air inlet 211, and the second air inlet 311 is used to receive the tail gas to be sprayed. The second water pump 330 is in communication with the liquid collecting tank 110 and the second spray device 320.

[0060] The second opening 313 is located below the liquid level of the spray liquid in the liquid collecting tank 110, so as to avoid leakage of the tail gas.

[0061] In the above embodiment, the double spray tower system in which the first spray tower 210 and the second spray tower 310 are arranged in series is adopted. The second spray tower 310 is used for pretreatment, and most of the harmful substances in the tail gas are removed. Then, the first spray tower 210 is used for deep treatment, and the residual harmful substances are further removed, so as to ensure that the finally discharged tail gas fully and stably meets the strict environmental protection standards.

[0062] The tail gas enters the second spray tower 310 through the second gas inlet 311, and the second water pump 330 delivers the spray liquid in the liquid collecting tank 110 to the second sprayer 320 to make the second sprayer 320 spray to wash the tail gas in the second spray tower 310, and then the tail gas enters the first gas inlet 211 of the first spray tower 210 from the second gas outlet.

[0063] The second opening 313 is arranged at the bottom of the second spray tower 310, so that the solid substances generated by the reaction of the spray liquid and the harmful substances can directly enter the liquid collecting tank 110 through the second opening 313, thereby avoiding the accumulation and blockage of the solid substances in the second spray tower 310. In addition, the solid substances remaining in the tower kettle of the second spray tower 310 can also be cleaned through the second opening 313, so that the process of disassembling the head of the tower kettle can be omitted, and the cleaning and maintenance process is more convenient.

[0064] Further, the spray liquid in the second spray tower 310 flows back to the liquid collecting tank 110 through the second opening 313 to recycle the spray liquid and save costs.

[0065] Referring to Figure 1 and Figure 3 In one embodiment, the number of the second sprayers 320 is multiple, the multiple second sprayers 320 are all in communication with the second water pump 330, multiple second spray positions are arranged in the second spray tower 310 from top to bottom, and at least one second sprayer 320 is arranged on each second spray position, and each second sprayer 320 is in communication with the water outlet end of the second water pump 330.

[0066] The second gas inlet 311 is located below the lowermost second spray position, and the second gas outlet 312 is located at the top of the second spray tower 310. In this way, the tail gas flows from bottom to top in the second spray tower 310, and the spray liquid is sprayed from top to bottom, and the two form countercurrent contact to improve the efficiency of spray washing.

[0067] In addition, multiple second sprayers 320 are arranged in the second spray tower 310 from top to bottom, so that when the tail gas flows from bottom to top in the second spray tower 310, the tail gas is subjected to multi-layer spray and fractional spray by the multiple second sprayers 320, so that the harmful substances in the tail gas can fully react with the spray liquid.

[0068] Referring to Figure 1 and Figure 3 The second gas outlet 312 and the first gas inlet 211 can be in communication through the connecting pipe 900.

[0069] Referring to Figure 1 and Figure 4As shown, in an embodiment, the spray purification system provided by the embodiments of the present application further comprises an overflow weir 400, which is arranged in the sump 110 and separates the sump 110 into an overflow area 111 and a discharge area 112. The overflow area 111 is used to receive the spray liquid, and the discharge area 112 is used to discharge the sewage.

[0070] The first opening 213 is located in the overflow area 111 and below the liquid level of the spray liquid in the overflow area 111, and the first water pump 230 is in communication with the overflow area 111. The second opening 313 is located in the discharge area 112 and below the liquid level of the spray liquid in the discharge area 112, and the second water pump 330 is in communication with the discharge area 112.

[0071] It can be understood that the liquid level of the overflow area 111 is higher than that of the discharge area 112. After the spray liquid enters the sump 110 from the outside, the gravity potential energy generated by the difference in liquid levels forms the power for forced overflow, and the spray liquid can naturally flow to the discharge area 112 along the weir of the overflow weir 400 without additional power (such as a pump body).

[0072] In the above embodiment, the first spray tower 210 and the first water pump 230 correspond to the overflow area 111, and the first spray tower 210 circulates the spray liquid in the overflow area 111 under the action of the first water pump 230. The second spray tower 310 and the second water pump 330 correspond to the discharge area 112, and the second spray tower 310 circulates the spray liquid in the discharge area 112 under the action of the second water pump 330. The liquid level of the overflow area 111 is higher than that of the discharge area 112, which can prevent the dirt in the discharge area 112 from spreading into the overflow area 111, causing the tail gas treated by the first spray tower 210 to be substandard.

[0073] Among them, before the tail gas treatment, the spray liquid can be continuously supplied to the overflow area 111. When the overflow area 111 is filled with spray liquid, the spray liquid naturally flows to the discharge area 112 along the weir of the overflow weir 400 until the discharge area 112 is filled with spray liquid. After the spray liquid in the overflow area 111 and the discharge area 112 is recycled for multiple times, the spray liquid can be continuously supplied to the overflow area 111 again, so that the dirt above the liquid level of the overflow area 111 enters the discharge area 112, and the dirt is discharged to the outside environment through the discharge area 112.

[0074] Among them, the weir of the overflow weir 400 can be sawtooth-shaped, arc-shaped, etc. to increase the overflow area.

[0075] Reference Figure 1 and Figure 2As shown, in an embodiment, the spray purification system provided by the embodiments of the present application further comprises a water seal tank 500, the water seal tank 500 has a liquid inlet 510, a liquid outlet 520, a gas inlet 530 and a gas outlet 540, the liquid outlet 520 is located above the liquid inlet 510 and the gas inlet 530, the liquid outlet 520 is in communication with the overflow area 111, so that the spray liquid enters the overflow area 111 in sequence through the liquid inlet 510, the inside of the water seal tank 500 and the liquid outlet 520.

[0076] The gas inlet 530 is in communication with the first exhaust port 212, so that the tail gas is discharged to the outside in sequence through the first exhaust port 212, the gas inlet 530, the spray liquid in the inside of the water seal tank 500 and the gas outlet 540.

[0077] In the above embodiment, the water seal tank 500 stores the spray liquid to form a water seal, block the backflow of gas in the external environment, avoid the risk of explosion caused by the mixing of flammable, explosive or toxic gas, and buffer the pressure impact to protect the first spray tower 210 and the second spray tower 310. In addition, the water seal tank 500 can also perform secondary demisting on the tail gas discharged from the first exhaust port 212 of the first spray tower 210.

[0078] In the above embodiment, the water seal tank 500 stores the spray liquid to form a water seal, block the backflow of gas in the external environment, avoid the risk of explosion caused by the mixing of flammable, explosive or toxic gas, and buffer the pressure impact to protect the first spray tower 210 and the second spray tower 310. In addition, the water seal tank 500 can also perform secondary demisting on the tail gas discharged from the first exhaust port 212 of the first spray tower 210.

[0079] Further, the gas inlet 530 is located below the liquid outlet 520, so that the gas inlet 530 is located below the liquid level of the spray liquid in the water seal tank 500. The gas outlet 540 is located at the top of the water seal tank 500, and the gas outlet 540 is located above the liquid level of the spray liquid in the water seal tank 500.

[0080] Referring to Figure 1 and Figure 2As shown, in an embodiment, the spray purification system provided by the embodiments of the present application further comprises a gas distributor 550, which is arranged in the water seal tank 500 and is in communication with the gas inlet 530, and a plurality of gas holes are arranged on the gas distributor 550 to uniformly disperse the tail gas into the spray liquid in the water seal tank 500.

[0081] In the above embodiment, the gas distributor 550 arranged in the water seal tank 500 can convert the single-point or local gas inlet of the tail gas entering the water seal tank 500 into uniformly dispersed gas inlet, greatly increase the contact area and contact time of the tail gas and the spray liquid in the water seal tank 500, and ensure that the interception and purification effect of the spray liquid in the water seal tank 500 on the tail gas is more stable. Moreover, the uniformly dispersed tail gas can also balance the pressure distribution in the water seal tank 500, avoid the liquid level fluctuation caused by the local tail gas aggregation, and further enhance the sealing performance of the water seal tank 500.

[0082] For example, the gas distributor 550 can be a porous pipe, a sieve plate or a ring-shaped gas distribution pipe structure.

[0083] Referring to Figure 1 and Figure 4 As shown, in an embodiment, the spray purification system provided by the embodiments of the present application further comprises a second spray pipe 331, a first blowdown pipe 610 and a switching valve, the water outlet end of the second water pump 330 has a first water outlet and a second water outlet, the second spray pipe 331 is in communication with the first water outlet and the second spray 320, and the first blowdown pipe 610 is used to communicate the second water outlet with an external sewage tank.

[0084] The switching valve is arranged at the water outlet end of the second water pump 330, and has a first state and a second state; in the first state, the switching valve opens the first water outlet and closes the second water outlet; in the second state, the switching valve opens the second water outlet and closes the first water outlet.

[0085] In the above embodiment, during the process of treating the tail gas, the switching valve can be in the first state, i.e. the switching valve opens the first water outlet and closes the second water outlet, the water outlet end of the second water pump 330 is in communication with the second spray pipe 331, and the second water pump 330 then delivers the spray liquid in the discharge area 112 to the second spray pipe 331 to make the second spray 320 spray and wash the tail gas in the second spray tower 310.

[0086] When the spray liquid in the discharge area 112 is circulated for a certain number of times and cannot be circulated repeatedly, at this time, dirt is deposited in the discharge area 112, the switching valve can be in the second state, that is, the switching valve opens the second water outlet and closes the first water outlet, and the outlet of the second water pump 330 is in communication with the first drain pipe 610. The second water pump 330 then discharges the spray liquid and dirt in the discharge area 112 through the first drain pipe 610 to the external sewage tank.

[0087] When the switching valve is in the second state, the spray liquid in the external environment can be continuously delivered to the water seal tank 500, so that the spray liquid in the water seal tank 500 overflows into the overflow area 111 of the liquid collecting tank 110, and the spray liquid in the overflow area 111 overflows into the discharge area 112, so as to supplement and replace the spray liquid in the water seal tank 500 and the liquid collecting tank 110.

[0088] The first water outlet can be provided with a filter screen assembly to prevent dirt in the discharge area 112 from entering the second spray pipe 331 and the second sprayer 320.

[0089] Referring to Figure 1 and Figure 4 In an embodiment, the spray purification system provided by the embodiment of the present application further includes a second drain pipe 620, and the bottom of the base 100 is provided with a liquid discharge port in communication with the discharge area 112 of the liquid collecting tank 110, and the second drain pipe 620 is used to connect the liquid discharge port and the external sewage tank.

[0090] The second drain pipe 620 is configured to discharge the residue at the bottom of the discharge area 112.

[0091] In the above embodiment, after the second water pump 330 discharges the spray liquid and dirt in the discharge area 112, a part of the residue is left, at this time, the second drain pipe 620 can be used to discharge the remaining spray liquid and dirt from the bottom of the discharge area 112 to the external sewage tank.

[0092] It can be understood that the second drain pipe 620 is provided with a closing valve. When cleaning the residue, the switching valve can be in the first state, and the closing valve is opened, and then the spray liquid overflowing from the overflow area 111 is used to flush the residue into the second drain pipe 620.

[0093] Referring to Figure 1 In an embodiment, the spray purification system provided by the embodiment of the present application further includes an air inlet pipe 700, which is in communication with the second air inlet 311 to deliver the tail gas into the second spray tower 310.

[0094] In the above embodiment, the air inlet pipe 700 is used to connect with a device for generating tail gas, so as to deliver the tail gas into the second spray tower 310 through the second air inlet 311.

[0095] Referring to Figure 1 and Figure 4 As shown in FIG. 8, in an embodiment, the spray cleaning system provided by the present application further comprises a cover plate 800, which is detachably connected with the base 100, and covers the sump 110.

[0096] In the above embodiment, the cover plate is arranged to cover the sump 110, so as to prevent the spray liquid in the sump 110 from overflowing.

[0097] The cover plate 800 is detachably connected with the base 100, so that the sump 110 can be opened to facilitate cleaning of the sump 110 and cleaning of the residue in the column kettle of the first spray tower 210 through the first opening 213 and cleaning of the residue in the column kettle of the second spray tower 310 through the second opening 313.

[0098] For example, the cover plate 800 and the base 100 can be detachably connected through bolts, buckles or other structures.

[0099] Further, the cover plate 800 is provided with a first avoiding hole and a second avoiding hole, the first opening 213 of the first spray tower 210 extends into the sump 110 through the first avoiding hole, and the second opening 313 of the second spray tower 310 extends into the sump 110 through the second avoiding hole. Sealing members are arranged between the cover plate 800 and the base 100, between the first spray tower 210 and the first avoiding hole, and between the second spray tower 310 and the second avoiding hole, so as to improve the air tightness. For example, the sealing members can be silica gel members, rubber members or other sealing materials with certain elasticity, and the present application does not make specific limitation thereto.

[0100] In an embodiment, the depth of the sump 110 is 500mm-6000mm, and the distance between the first opening 213 and the bottom of the sump 110 is 500mm-3000mm.

[0101] In the above embodiment, the first opening 213 is designed to be below the liquid level of the spray liquid in the sump 110.

[0102] For example, the depth of the sump 110 can include but is not limited to 500mm, 1000mm, 1500mm, 2000mm, 2500mm, 3000mm, 3500mm, 3800mm, 4000mm, 4500mm, 5000mm, 5500mm, 6000mm. Preferably, the depth is 3800mm.

[0103] Further, the liquid level of the overflow area 111 is 500mm-6000mm, for example, 500mm, 1000mm, 1500mm, 2000mm, 2500mm, 3000mm, 3300mm, 3500mm, 4000mm, 4500mm, 5000mm, 5500mm, 6000mm; preferably 3300mm. The liquid level of the discharge area 112 is 500mm-6000mm, for example, 500mm, 1000mm, 1500mm, 2000mm, 2500mm, 2800mm, 3000mm, 3500mm, 4000mm, 4500mm, 5000mm, 5500mm, 6000mm; preferably 2800mm.

[0104] For example, the distance between the first opening 213 of the first spray tower 210 and the bottom of the sump 110 (i.e. the bottom of the overflow area 111) can include but is not limited to 500mm, 1000mm, 1300mm, 1500mm, 2000mm, 2500mm, 3000mm; preferably 1300mm.

[0105] Further, the distance between the second opening 313 of the second spray tower 310 and the bottom of the sump 110 (i.e. the bottom of the discharge area 112) is 500-3000mm, which can include but is not limited to 500mm, 800mm, 1000mm, 1500mm, 2000mm, 2500mm, 3000mm; preferably 800mm.

[0106] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0107] It should be understood that the application is not limited to the precise construction that has been described above and illustrated in the accompanying drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application is limited only by the appended claims.

Claims

1. A spray cleaning system, characterized by The utility model relates to a tail gas spray tower, comprising: a base (100) having a sump (110) formed therein; a first spray tower (210) having a first gas inlet (211) and a first gas outlet (212) formed therein, the first spray tower (210) being provided with a first opening (213) at the bottom thereof, the first spray tower (210) being arranged on the base (100), the first opening (213) extending into the sump (110), and the first opening (213) being located below the liquid level of the spray liquid in the sump (110); a first sprayer (220) arranged in the first spray tower (210); a first water pump (230) connecting the sump (110) and the first sprayer (220).

2. The spray cleaning system of claim 1, wherein, The utility model further comprises a second spray tower (310), a second sprayer (320) and a second water pump (330), the second spray tower (310) having a second gas inlet (311) and a second gas outlet (312) formed therein, the second spray tower (310) being provided with a second opening (313) at the bottom thereof, the second spray tower (310) being arranged on the base (100), the second opening (313) extending into the sump (110), and the second opening (313) being located below the liquid level of the spray liquid in the sump (110); the second gas outlet (312) being in communication with the first gas inlet (211), the second gas inlet (311) being used for receiving the tail gas to be sprayed, and the second water pump (330) connecting the sump (110) and the second sprayer (320).

3. The spray cleaning system of claim 2, wherein, The utility model further comprises an overflow weir (400) arranged in the sump (110), the overflow weir (400) dividing the sump (110) into an overflow area (111) and a discharge area (112), the overflow area (111) being used for receiving the spray liquid, and the discharge area (112) being used for discharging sewage; the first opening (213) being located in the overflow area (111), the first water pump (230) being in communication with the overflow area (111); and the second opening (313) being located in the discharge area (112), the second water pump (330) being in communication with the discharge area (112).

4. The spray cleaning system of claim 3, wherein, The utility model further comprises a water seal tank (500) having a liquid inlet (510), a liquid outlet (520), a gas inlet (530) and a gas outlet (540), the liquid outlet (520) being located above the liquid inlet (510) and the gas inlet (530), the liquid outlet (520) being in communication with the overflow area (111) so that the spray liquid sequentially passes through the liquid inlet (510), the inside of the water seal tank (500) and the liquid outlet (520) into the overflow area (111). The gas inlet (530) is in communication with the first exhaust port (212) so that the tail gas is sequentially discharged to the outside through the first exhaust port (212), the gas inlet (530), the spraying liquid inside the water seal tank (500) and the gas outlet (540).

5. The spray cleaning system of claim 4, wherein, The gas distributor (550) is further included, which is arranged in the water seal tank (500) and in communication with the gas inlet (530), and a plurality of gas holes are arranged on the gas distributor (550) to uniformly disperse the tail gas into the spraying liquid in the water seal tank (500).

6. The spray cleaning system according to any one of claims 3 to 5, characterized in that The second spraying pipe (331), the first blowdown pipe (610) and the switching valve are further included, the water outlet end of the second water pump (330) has a first water outlet and a second water outlet, the second spraying pipe (331) is in communication with the first water outlet and the second spraying device (320), and the first blowdown pipe (610) is used for communicating the second water outlet with an external sewage pool. The switching valve is arranged at the water outlet end of the second water pump (330) and has a first state and a second state; in the first state, the switching valve opens the first water outlet and closes the second water outlet; and in the second state, the switching valve opens the second water outlet and closes the first water outlet.

7. The spray cleaning system of claim 6, wherein, The second blowdown pipe (620) is further included, the bottom of the base (100) is provided with a liquid discharge port in communication with the discharge area (112) of the liquid collecting groove (110), and the second blowdown pipe (620) is used for communicating the liquid discharge port with an external sewage pool. The second blowdown pipe (620) is configured to discharge the residue at the bottom of the discharge area (112).

8. The spray cleaning system according to any one of claims 2 to 5, wherein The air inlet pipe (700) is further included, which is in communication with the second air inlet (311) to convey the tail gas into the second spraying tower (310).

9. The spray cleaning system according to any one of claims 1 to 5, wherein The cover plate (800) is further included, which is detachably connected with the base (100) and covers the liquid collecting groove (110).

10. The spray cleaning system according to any one of claims 1 to 5, wherein The depth of the liquid collecting groove (110) is 500mm-6000mm, and the distance between the first opening (213) and the bottom of the liquid collecting groove (110) is 500mm-3000mm.

Images