Waste gas filtering machine for dangerous chemical production

Abstract

The utility model relates to the technical field of waste gas treatment equipment, and discloses a waste gas filtering machine for dangerous chemical production, which comprises a water tank and a fan, a circulating pump is fixedly mounted on one side of the water tank, the fan and the circulating pump are respectively and electrically connected with an external master controller through connecting wires, and the input end of the circulating pump is connected with the output end of the water tank through a pipeline. A spray tower is fixedly mounted on the water tank, an air inlet pipe is fixedly mounted on the outer side of the water tank, a filler frame is fixedly mounted in the spray tower, a spray mechanism is further arranged in the spray tower above the filler frame, and the spray mechanism comprises a main pipe. An inner pipe and a first sealing block are arranged in the spray head, and the lower end of the inner pipe is inserted into a second spray hole in the first sealing block, so that the lower port of the spray head can be closed by means of supporting force of a compression spring on the outer side of a first connecting rod when the spray head stops spraying; and the condition that residual substances in the spray tower float into the spray head and react with the adsorption liquid to cause the blockage of the spray head is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment equipment, in particular to a waste gas filtering machine for the production of hazardous chemicals. Background Art

[0002] In the process of chemical production, a large amount of harmful waste gas will be generated. These harmful waste gases need to be treated before they can be discharged into the external atmosphere. When treating harmful waste gases, spray towers are often used. Spray towers are mainly used to remove harmful substances in waste gases, such as particulate matter, sulfur dioxide, nitrogen oxides, etc., thereby removing pollutants from waste gases through chemical reactions or physical adsorption.

[0003] For example, the Chinese utility model patent disclosed in the publication number CN221693252U: a spray tower, the application includes a spray tower body, a circulating water pump and a connecting pipe, the spray tower body is provided with a first interface and a second interface, the spray tower body is connected with a bottom water tank, the circulating water tank is connected with the bottom water tank, the circulating water pump extracts the absorption liquid in the bottom water tank and sprays the packing layer through the spray structure, therefore, after the absorption liquid is sprayed into the spray tower body through the spray structure, the harmful substances in the exhaust gas can be reacted and absorbed, but after the spray tower stops running and the nozzle of the spray structure stops spraying water, due to The nozzle no longer sprays absorption liquid outward. Without the absorption liquid spraying out to flush, some of the exhaust gas or floating particles, oil mist, sticky substances and other substances remaining in the spray tower adhere to and deposit on the nozzle, gradually accumulating to form a blockage, so that the oil mist and sticky substances may adhere to the nozzle surface or internal channels, reducing the flow capacity of the nozzle or even completely blocking the nozzle. At the same time, since the channels in the nozzle are not flushed with the absorption liquid, the residual absorption liquid in the nozzle will react with certain chemical components in the exhaust gas to form precipitates or crystals. These substances are also easy to accumulate at the nozzle, causing blockage. Utility Model Content

[0004] The purpose of the utility model is to provide a waste gas filtering machine for the production of hazardous chemicals, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A waste gas filtering machine for hazardous chemical production comprises a water tank and a fan, a circulating pump is fixedly installed on one side of the water tank, and the fan and the circulating pump are electrically connected to an external main controller through a connecting line respectively, the input end of the circulating pump is connected to the output end of the water tank through a pipeline, a spray tower is fixedly installed on the water tank, an air inlet pipe is fixedly installed on the outside of the water tank, a packing rack is fixedly installed in the spray tower, and a spray mechanism is also arranged in the spray tower located above the packing rack, the spray mechanism comprises a main pipe, a plurality of auxiliary pipes are fixedly installed on the outside of the main pipe, a plurality of nozzles are movably installed at the lower ends of the main pipe and the auxiliary pipe, one end of the main pipe is fixedly connected to one side of the spray tower and connected to the output end of the circulating pump through a pipeline, an inner pipe is fixedly installed in the nozzle, a first sealing block is also arranged in the nozzle, a plurality of first connecting rods are fixedly installed on the outside of the first sealing block, and the first sealing block is movably installed in the inner pipe through the first connecting rod, an exhaust pipe is fixedly installed on the upper end of the spray tower, and the exhaust pipe is connected to the input end of the fan through a pipeline.

[0007] As a further preferred solution of the utility model, a fixing ring is fixedly installed on the outside of the nozzle, and a plurality of through holes are opened in the fixing ring.

[0008] As a further preferred embodiment of the present invention, a first spray hole is formed at the bottom of the inner tube, a plurality of second sealing blocks are fixedly mounted along the outer contour of the first spray hole at the bottom of the inner tube, the inner tube is inserted into the middle of the nozzle and a plurality of second connecting rods are fixedly connected to the inner side of the nozzle;

[0009] Based on this, by setting an inner tube in the nozzle, after the first sealing block is moved to the bottom of the nozzle, the amount of water sprayed from the nozzle can be prevented from being affected by the structural setting of the first sealing block.

[0010] As a further preferred embodiment of the present invention, a second spray hole is opened in the middle of the first sealing block, a guide seat is arranged in the middle of the second spray hole, and a plurality of connection blocks are fixedly connected to the outer side of the guide seat and the inner side of the second spray hole.

[0011] As a further preferred embodiment of the present invention, a slot is provided at the upper part of the outer side of the first connecting rod, the upper end of the first connecting rod passes through the through hole in the fixing ring and extends to the upper part of the fixing ring, and a plurality of slots on the outer sides of the first connecting rods are clamped with a retaining spring, and the first connecting rod located between the retaining spring and the fixing ring is also sleeved with a compression spring, the first sealing block is inserted at the lower part of the nozzle, and the second spray hole is inserted at the lower end of the inner tube, and the lower end of the second sealing block is inserted between the corresponding two connecting blocks;

[0012] Based on this, the first sealing block is inserted into the nozzle, and the second spray hole is inserted into the lower end of the inner tube, so that the nozzle can be sealed when the spraying operation is not in progress, to prevent the particles, oil mist, sticky substances and other substances remaining in the exhaust gas in the spray tower from adhering to the nozzle after the spraying operation is stopped.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the utility model, an inner tube and a first sealing block are arranged in the nozzle, and the lower end of the inner tube is also inserted into the second spray hole in the first sealing block, so that when the nozzle stops spraying, the lower port of the nozzle can be closed with the support force of the compression spring on the outer side of the first connecting rod to prevent the residual substances in the spray tower from floating into the nozzle and reacting with the adsorption liquid to cause the nozzle to be blocked. When the high-pressure adsorption liquid enters the nozzle, the first sealing block can be pushed out of the nozzle by the liquid pressure, and the inner tube, the first spray hole and the second spray hole can be cooperated to perform the spraying operation without affecting the spraying efficiency of the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the spray tower of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the spray mechanism of the utility model;

[0018] Figure 4 for Figure 2 The enlarged view of point A in the middle;

[0019] Figure 5 This is a schematic diagram of the nozzle structure of the utility model;

[0020] Figure 6 It is a cross-sectional view of the nozzle of the utility model;

[0021] Figure 7 This is a cross-sectional view of the first sealing block of the utility model.

[0022] In the figure: 1. water tank; 2. circulation pump; 3. spray tower; 4. air inlet pipe; 5. stuffing rack; 6. spray mechanism; 7. main pipe; 8. auxiliary pipe; 9. nozzle; 10. inner pipe; 11. first sealing block; 12. first connecting rod; 13. exhaust pipe; 14. fan; 15. fixing ring; 16. first spray hole; 17. second sealing block; 18. second connecting rod; 19. second spray hole; 20. guide seat; 21. connecting block; 22. slot; 23. retaining spring. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1 - Figure 7 As shown, the utility model provides an exhaust gas filtering machine for hazardous chemical production, including a water tank 1 and a fan 14, a circulation pump 2 is fixedly installed on one side of the water tank 1, and the fan 14 and the circulation pump 2 are electrically connected to an external main controller through a connecting line, the input end of the circulation pump 2 is connected to the output end of the water tank 1 through a pipeline, a spray tower 3 is fixedly installed on the water tank 1, an air intake pipe 4 is fixedly installed on the outside of the water tank 1, a filling frame 5 is fixedly installed in the spray tower 3, and a spray mechanism 6 is also arranged in the spray tower 3 above the filling frame 5, and the spray mechanism 6 includes a main pipe 7, and the main pipe 7 is outside A plurality of auxiliary pipes 8 are fixedly installed on the side, and a plurality of nozzles 9 are movably installed on the lower ends of the main pipe 7 and the auxiliary pipe 8. One end of the main pipe 7 is fixedly connected to one side of the spray tower 3 and is connected to the output end of the circulating pump 2 through a pipeline. An inner pipe 10 is fixedly installed in the nozzle 9, and a first sealing block 11 is also arranged in the nozzle 9. A plurality of first connecting rods 12 are fixedly installed on the outside of the first sealing block 11, and the first sealing block 11 is movably installed in the inner pipe 10 through the first connecting rod 12. An exhaust pipe 13 is fixedly installed on the upper end of the spray tower 3, and the exhaust pipe 13 is connected to the input end of the fan 14 through a pipeline.

[0025] A fixing ring 15 is fixedly installed on the outside of the nozzle 9, and a plurality of through holes are opened in the fixing ring 15. A first spray hole 16 is opened at the bottom of the inner tube 10, and a plurality of second sealing blocks 17 are fixedly installed on the bottom of the inner tube 10 along the outer contour of the first spray hole 16. The inner tube 10 is inserted into the middle part of the nozzle 9 and is fixedly connected to the inner side of the nozzle 9 with a plurality of second connecting rods 18. By arranging the inner tube 10 in the nozzle 9, the first sealing block 11 can be moved to the bottom of the nozzle 9 to prevent the structural setting of the first sealing block 11 from affecting the amount of water sprayed from the nozzle 9. A second spray hole 19 is opened in the middle part of the first sealing block 11, and a guide seat 20 is arranged in the middle part of the second spray hole 19. A plurality of connecting blocks 21 are fixedly connected to the inner side of the second spray hole 19 on the outer side of the guide seat 20, and a card is opened at the upper part of the outer side of the first connecting rod 12. Groove 22, the upper end of the first connecting rod 12 passes through the through hole in the fixing ring 15 and extends to the top of the fixing ring 15, and a retaining spring 23 is clamped between the retaining grooves 22 on the outer sides of the plurality of first connecting rods 12, and the first connecting rod 12 located between the retaining spring 23 and the fixing ring 15 is also provided with a compression spring, the first sealing block 11 is inserted at the lower part of the nozzle 9, and the second spray hole 19 is inserted at the lower end of the inner tube 10, and the lower end of the second sealing block 17 is inserted between the corresponding two connecting blocks 21, the first sealing block 11 is inserted in the nozzle 9, and the second spray hole 19 is inserted at the lower end of the inner tube 10, so that the nozzle 9 can be sealed when the spraying operation is not performed, so as to prevent the particles, oil mist, sticky substances and other substances remaining in the exhaust gas in the spray tower 3 from adhering to the nozzle 9 after the spraying operation is stopped.

[0026] It should be noted that the utility model is a waste gas filtering machine for hazardous chemical production. When the circulation pump 2 inputs the adsorption liquid in the water tank 1 into the main pipe 7 through the pipeline, the adsorption liquid enters the main pipe 7 and is divided into multiple auxiliary pipes 8, so that the nozzles 9 at the lower ends of the main pipe 7 and the auxiliary pipes 8 are filled with the adsorption liquid, and the pressure of the adsorption liquid can be used to press the first sealing block 11 inserted in the nozzle 9 downward and move. Therefore, the first sealing block 11 is moved out of the nozzle 9 under the pressure impact of the adsorption liquid and placed below the nozzle 9. At the same time, the first sealing block 11 drives the multiple first connecting rods 12 on the outside to move in the fixing ring 15. The first connecting rod 12 moves downward in the through hole, and the plurality of first connecting rods 12 synchronously drive the clamping spring 23 to move downward, and the clamping spring 23 compresses the compression spring on the outer side of the first connecting rod 12 toward the fixing ring 15, and then, the adsorption liquid in the nozzle 9 continuously impacts the first sealing block 11 and is sprayed out to the surroundings with the help of the first sealing block 11, thereby improving the spraying range of the nozzle 9, and at the same time, the adsorption liquid entering the inner tube 10 is similarly sprayed into the second spray hole 19, and the adsorption liquid is sprayed downward through the second spray hole 19, thereby preventing the entity first sealing block 11 from affecting the spraying of the adsorption liquid directly below the nozzle 9, thereby ensuring the effective spraying area of ​​the nozzle 9;

[0027] When the circulation pump 2 stops running and the nozzle 9 stops spraying, in the absence of pressure shock from the adsorption liquid, the compression spring on the outside of the first connecting rod 12 stretches and rebounds and pushes up the retaining spring 23, so that the retaining spring 23 drives multiple first connecting rods 12 to move up synchronously, so that the first connecting rod 12 drives the first sealing block 11 to be inserted into the lower part of the nozzle 9, and the second spray hole 19 is inserted into the lower end of the inner tube 10, the first spray hole 16 is inserted into the guide seat 20, and multiple second sealing blocks 17 are respectively inserted between the corresponding two connecting blocks 21, so as to achieve the sealing effect on the lower port of the nozzle 9, and prevent the floating objects remaining in the spray tower 3 from entering the nozzle 9 to be deposited or reacting with the adsorption liquid remaining in the nozzle 9 to generate precipitates, causing the nozzle 9 to be blocked.

[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A waste gas filtering machine for hazardous chemical production, characterized by: The invention comprises a water tank (1) and a fan (14), wherein a circulation pump (2) is fixedly mounted on one side of the water tank (1), and the fan (14) and the circulation pump (2) are respectively electrically connected to an external main controller via a connecting line, and the input end of the circulation pump (2) is connected to the output end of the water tank (1) via a pipeline, a spray tower (3) is fixedly mounted on the water tank (1), an air intake pipe (4) is fixedly mounted on the outside of the water tank (1), a filling rack (5) is fixedly mounted inside the spray tower (3), and a spray mechanism (6) is also arranged inside the spray tower (3) above the filling rack (5), and the spray mechanism (6) comprises a main pipe (7), and a plurality of auxiliary pipes (8) are fixedly mounted on the outside of the main pipe (7). A plurality of nozzles (9) are movably mounted at the lower ends of the main pipe (7) and the auxiliary pipe (8), one end of the main pipe (7) is fixedly connected to one side of the spray tower (3) and connected to the output end of the circulation pump (2) through a pipeline, an inner pipe (10) is fixedly mounted inside the nozzle (9), a first sealing block (11) is also arranged inside the nozzle (9), a plurality of first connecting rods (12) are fixedly mounted outside the first sealing block (11), and the first sealing block (11) is movably mounted inside the inner pipe (10) through the first connecting rods (12), an exhaust pipe (13) is fixedly mounted at the upper end of the spray tower (3), and the exhaust pipe (13) is connected to the input end of the fan (14) through a pipeline.

2. The waste gas filtering machine for hazardous chemical production according to claim 1 is characterized by: A fixing ring (15) is fixedly mounted on the outside of the nozzle (9), and a plurality of through holes are formed in the fixing ring (15).

3. The waste gas filtering machine for hazardous chemical production according to claim 2 is characterized by: A first spray hole (16) is formed at the bottom of the inner tube (10), a plurality of second sealing blocks (17) are fixedly mounted on the bottom of the inner tube (10) along the outer contour of the first spray hole (16), and the inner tube (10) is inserted into the middle of the spray head (9) and is fixedly connected to the inner side of the spray head (9) by a plurality of second connecting rods (18).

4. The waste gas filtering machine for hazardous chemical production according to claim 3 is characterized by: A second spray hole (19) is provided in the middle of the first sealing block (11), a guide seat (20) is provided in the middle of the second spray hole (19), and a plurality of connection blocks (21) are fixedly connected to the outer side of the guide seat (20) and the inner side of the second spray hole (19).

5. The waste gas filtering machine for hazardous chemical production according to claim 4 is characterized by: A slot (22) is provided at the upper portion of the outer side of the first connecting rod (12); the upper end of the first connecting rod (12) passes through a through hole in the fixing ring (15) and extends to the upper portion of the fixing ring (15); a retaining spring (23) is mounted between the retaining grooves (22) on the outer sides of the plurality of first connecting rods (12); a compression spring is also mounted on the first connecting rod (12) between the retaining spring (23) and the fixing ring (15); the first sealing block (11) is inserted into the lower portion of the nozzle (9); the second spray hole (19) is inserted into the lower end of the inner tube (10); and the lower end of the second sealing block (17) is inserted between the two corresponding connecting blocks (21).

Images