Waste gas treatment device for chemical reaction kettle

Abstract

The utility model discloses a waste gas treatment device for a chemical reaction kettle, which comprises a cylindrical tower, a spray pipe is arranged in the cylindrical tower, a spray head is arranged on the spray pipe, the spray pipe is connected with a water outlet of a water pump through a water outlet pipe, a water inlet of the water pump is connected with the bottom of the cylindrical tower through a water inlet pipe, and a blanking hopper is arranged below the spray pipe. An air inlet is formed in the side wall of the cylindrical tower and located between the spraying pipe and the discharging hopper, an exhaust port is formed in the top of the cylindrical tower, a filter screen cylinder is arranged between the bottom of a discharging pipe of the discharging hopper and the bottom of the cylindrical sleeve, a blow-off pipe communicated with the filter screen cylinder is installed at the bottom of the cylindrical tower, and a blow-off valve is arranged on the blow-off pipe. When many filtered objects in the filter screen cylinder need to be cleaned, the blow-down valve can be directly opened, the filtered objects in the filter screen cylinder are discharged through the blow-down pipe, operation is simple, and therefore the filtered objects can be conveniently cleaned when many filtered objects exist.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology for chemical reactors, and in particular to a waste gas treatment device for chemical reactors. Background Technology

[0002] Chemical waste gas refers to the toxic and harmful gases discharged from chemical plants during chemical production. Chemical waste gas often contains a wide variety of pollutants with complex physical and chemical properties and varying toxicity levels. It seriously pollutes the environment and affects human health. The composition of chemical waste gas varies greatly from industry to industry. For example, the waste gas generated by the chlor-alkali industry mainly contains chlorine, hydrogen chloride, vinyl chloride, mercury, acetylene, etc., while the waste gas generated by the nitrogen fertilizer industry mainly contains nitrogen oxides, urea dust, carbon monoxide, ammonia, sulfur dioxide, methane, etc.

[0003] Chinese utility model patent CN218553570U discloses a waste gas treatment device for a chemical reactor, comprising: a cylindrical tower; a gas pipeline fixedly disposed on one side of the bottom of the outer wall of the cylindrical tower; a circulating water tank fixedly disposed on the other side of the bottom of the outer wall of the cylindrical tower; an exhaust pipe fixedly disposed on one side of the top of the outer wall of the cylindrical tower; a sealing door rotatably disposed on the bottom of the front side of the outer side of the cylindrical tower; a support frame fixedly disposed in the middle of the inner wall of the cylindrical tower; a rotating spraying mechanism disposed at the bottom of the support frame; and a water circulation assembly disposed in the inner cavity of the circulating water tank. This waste gas treatment device for the chemical reactor... The device, equipped with a water circulation component, allows spray heads to spray inside a cylindrical tower to neutralize and concentrate dust, impurities, and water-soluble harmful substances in the exhaust gas at the bottom of the tower's inner cavity. A filter screen and through-holes enable water circulation spraying, conserving water resources. A rotating spray mechanism expands the spray range of the water mist and increases the absorption range of the exhaust gas, preventing exhaust gas from passing through the water mist and improving water treatment intensity and effectiveness. However, the filter screen traps the water, causing filter material to remain inside the cylindrical tower. When a large amount of filter material needs cleaning, the tower must be opened, which is inconvenient. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a waste gas treatment device for chemical reaction vessels to solve the technical problems in the background art.

[0005] To achieve the above technical objectives, the present invention provides a waste gas treatment device for a chemical reactor, comprising a cylindrical tower, a spray pipe inside the cylindrical tower, a nozzle on the spray pipe, the spray pipe being connected to the drain outlet of a water pump via a drain pipe, the water inlet of the water pump being connected to the bottom of the cylindrical tower via an inlet pipe, a hopper being installed below the spray pipe, an air inlet being provided on the side wall of the cylindrical tower between the spray pipe and the hopper, an exhaust outlet being provided at the top of the cylindrical tower, a filter screen being provided between the bottom of the discharge pipe of the hopper and the bottom of the cylindrical tower, a drain pipe connected to the filter screen being installed at the bottom of the cylindrical tower, and a drain valve being provided on the drain pipe.

[0006] Furthermore, a flange is installed at the upper end of the sewage pipe. The flange is bolted to the bottom of the cylindrical tower. The bottom of the cylindrical tower is provided with a sewage discharge hole that communicates with the sewage pipe. The bottom of the filter screen cylinder passes through the sewage discharge hole and abuts against the top of the flange.

[0007] Furthermore, the filter cylinder includes a cylindrical mesh body, the top of which is provided with an upper annular frame, and the top of the upper annular frame is provided with an annular limiting groove for engaging the upper annular frame with the bottom of the hopper.

[0008] Furthermore, the bottom of the cylindrical mesh body is provided with a lower annular frame, the bottom of which abuts against the top of the flange.

[0009] Furthermore, a sealing ring is provided between the top of the flange and the bottom of the cylindrical tower.

[0010] Furthermore, the water inlet pipe includes two water inlet branch pipes, one of which is connected to the bottom of the cylindrical tower, and the other is connected to the water supply system. The two water inlet branch pipes are respectively connected to the main water inlet pipe, and the main water inlet pipe is connected to the water pump's inlet pipe.

[0011] The beneficial effects of this utility model include:

[0012] 1. When there is a lot of filter material inside the filter cylinder that needs to be cleaned, the drain valve can be opened directly to allow the filter material inside the filter cylinder to be discharged through the drain pipe. The operation is simple, so it is convenient to clean the filter material when there is a lot of filter material.

[0013] 2. When the filter screen becomes clogged and needs cleaning after a period of use, the flange can be removed from the bottom of the cylindrical tower. Then, the filter screen can be taken out of the cylindrical tower through the drain hole for cleaning. After cleaning, the filter screen can be put back into the cylindrical tower through the drain hole. Then, the flange can be installed at the bottom of the cylindrical tower to complete the cleaning of the filter screen. The operation is convenient, so it is convenient to clean the filter screen when it is clogged. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the waste gas treatment device for a chemical reactor according to an embodiment of this utility model;

[0015] Figure 2 yes Figure 1 Enlarged view of point A;

[0016] Figure 3 This is a schematic diagram of the filter cylinder structure according to an embodiment of the present utility model;

[0017] In the diagram: 1. Cylindrical tower; 11. Air inlet; 12. Exhaust outlet; 13. Drain hole; 2. Spray pipe; 21. Spray head; 3. Drain pipe; 31. Drain branch pipe; 32. Drain main pipe; 33. Drain valve; 4. Water pump; 5. Water inlet pipe; 51. Water inlet branch pipe; 52. Water inlet main pipe; 53. Water inlet valve; 6. Feed hopper; 7. Filter screen cylinder; 71. Cylindrical mesh body; 72. Upper annular frame; 721. Annular limiting groove; 73. Lower annular frame; 8. Drain pipe; 81. Drain valve; 82. Flange; 821. Sealing ring. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] This utility model provides a waste gas treatment device for chemical reaction vessels, such as... Figure 1 As shown, the structure includes a cylindrical tower 1, inside which is a spray pipe 2 with a nozzle 21. The spray pipe 2 is connected to the drain outlet of a water pump 4 via a drain pipe 3. The inlet of the water pump 4 is connected to the bottom of the cylindrical tower 1 via an inlet pipe 5. A hopper 6 is installed below the spray pipe 2. An air inlet 11 is provided on the side wall of the cylindrical tower 1 between the spray pipe 2 and the hopper 6. An exhaust outlet 12 is provided on the top of the cylindrical tower 1. A filter screen 7 is provided between the bottom of the discharge pipe of the hopper 6 and the bottom of the cylindrical tower 1. A drain pipe 8 connected to the filter screen 7 is installed at the bottom of the cylindrical tower 1, and a drain valve 81 is provided on the drain pipe 8. Water can be pumped out from the bottom of the cylindrical tower 1 by water pump 4. The water pumped out from the bottom of the cylindrical tower 1 can enter the spray pipe 2 through the inlet pipe 5 and the outlet pipe 3. The water entering the spray pipe 2 can be sprayed out through the nozzle 21 to remove dust, impurities and water-soluble harmful substances from the flue gas. The sprayed water can be returned to the bottom of the cylindrical tower 1 through the discharge hopper 6. At the same time, the water can be filtered through the filter screen 7 so that the water can be recycled and water resources can be saved. When there is a lot of filter material in the filter screen 7 and it needs to be cleaned, the drain valve 81 can be opened directly to discharge the filter material in the filter screen 7 through the drain pipe 8. The operation is convenient, so it is convenient to clean the filter material when there is a lot of filter material.

[0020] It should be noted that the spray pipe 2 includes multiple pipes arranged at equal intervals from top to bottom inside the cylindrical tower 1. Multiple nozzles 21 are provided at equal intervals on the spray pipe 2, which can improve the removal effect of dust impurities and water-soluble harmful substances in the flue gas. At the same time, the drain pipe 3 includes multiple drain branch pipes 31 that are connected to the multiple spray pipes 2 respectively. The multiple drain branch pipes 31 are connected to the main drain pipe 32 respectively. The main drain pipe 32 is connected to the drain outlet of the water pump 4. Each main drain pipe 32 is equipped with a drain valve 33.

[0021] It should be noted that the water inlet pipe 5 includes two water inlet branch pipes 51. One water inlet branch pipe 51 is connected to the bottom of the cylindrical tower 1, and the other water inlet branch pipe 51 is connected to the water supply system. The two water inlet branch pipes 51 are respectively connected to the main water inlet pipe 52, which is connected to the water inlet pipe of the water pump 4. Both water inlet branch pipes 51 are equipped with water inlet valves 53. When the water volume inside the cylindrical tower 1 is insufficient, water can be added to the cylindrical tower 1 through the water supply system.

[0022] In this embodiment, as Figure 2 As shown, a flange 82 is installed at the upper end of the drain pipe 8. The flange 82 is bolted to the bottom of the cylindrical tower 1. The bottom of the cylindrical tower 1 is provided with a drain hole 13 that communicates with the drain pipe 8. The top of the filter screen cylinder 7 abuts against the bottom opening of the feed hopper 6. The bottom of the filter screen cylinder 7 passes through the drain hole 13 and abuts against the top of the flange 82. When the filter screen cylinder 7 is clogged after a period of use and needs to be cleaned, the flange 82 can be removed from the bottom of the cylindrical tower 1. Then, the filter screen cylinder 7 is taken out from the inside of the cylindrical tower 1 through the drain hole 13 for cleaning. After cleaning, the filter screen cylinder 7 is put back into the cylindrical tower 1 through the drain hole 13. Then, flange 82 is installed at the bottom of the cylindrical tower, which completes the cleaning of filter cylinder 7. This operation is convenient, allowing for easy cleaning of filter cylinder 7 when it becomes clogged. Simultaneously, a sealing ring 821 is provided between the top of flange 82 and the bottom of cylindrical tower 1. The sealing ring 821 seals the connection between flange 82 and the bottom of cylindrical tower 1, preventing water from leaking out of the cylindrical tower 1. Figure 3 As shown, the filter cylinder 7 includes a cylindrical mesh body 71. The top of the cylindrical mesh body 71 is provided with an upper annular frame 72. The top of the upper annular frame 72 is provided with an annular limiting groove 721 for locking the upper annular frame 72 at the bottom of the discharge pipe of the discharge hopper 6. This can limit the position of the filter cylinder 7 when it is installed, making the installation of the filter cylinder 7 convenient. The bottom of the cylindrical mesh body 71 is provided with a lower annular frame 73. The bottom of the lower annular frame 73 abuts against the top of the flange 82.

[0023] The waste gas treatment device for chemical reactors according to this novel embodiment allows for easy cleaning of filter material inside the filter cylinder 7 when there is a large amount of filter material inside. The drain valve 81 can be opened directly to allow the filter material inside the filter cylinder 7 to be discharged through the drain pipe 8. The operation is simple, and therefore it is convenient to clean the filter material when there is a large amount of filter material.

[0024] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A waste gas treatment device for a chemical reaction vessel, characterized in that, The system includes a cylindrical tower (1), inside which a spray pipe (2) is provided. The spray pipe (2) is equipped with a nozzle (21). The spray pipe (2) is connected to the drain outlet of a water pump (4) via a drain pipe (3). The inlet of the water pump (4) is connected to the bottom of the cylindrical tower (1) via an inlet pipe (5). A hopper (6) is installed below the spray pipe (2). An air inlet (11) is provided on the side wall of the cylindrical tower (1) between the spray pipe (2) and the hopper (6). An exhaust outlet (12) is provided at the top of the cylindrical tower (1). The hopper ( A filter screen (7) is provided between the bottom of the feed pipe and the bottom of the cylindrical tower (1). A drain pipe (8) connected to the filter screen (7) is installed at the bottom of the cylindrical tower (1). A drain valve (81) is provided on the drain pipe (8). A flange (82) is installed at the upper end of the drain pipe (8). The flange (82) is installed at the bottom of the cylindrical tower (1) by bolts. A drain hole (13) connected to the drain pipe (8) is provided at the bottom of the cylindrical tower (1). The bottom of the filter screen (7) passes through the drain hole (13) and abuts against the top of the flange (82).

2. The waste gas treatment device for chemical reaction vessels according to claim 1, characterized in that, The filter cylinder (7) includes a cylindrical mesh body (71), the top of the cylindrical mesh body (71) is provided with an upper annular frame (72), and the top of the upper annular frame (72) is provided with an annular limiting groove (721) for locking the upper annular frame (72) at the bottom of the feed pipe of the feed hopper (6).

3. The waste gas treatment device for chemical reaction vessels according to claim 2, characterized in that, The bottom of the cylindrical mesh (71) is provided with a lower annular frame (73), and the bottom of the lower annular frame (73) abuts against the top of the flange (82).

4. The waste gas treatment device for chemical reaction vessels according to claim 3, characterized in that, A sealing ring (821) is provided between the top of the flange (82) and the bottom of the cylindrical tower (1).

5. The waste gas treatment device for chemical reaction vessels according to claim 1, characterized in that, The water inlet pipe (5) includes two water inlet branch pipes (51), one of which is connected to the bottom of the cylindrical tower (1), and the other is connected to the water supply system. The two water inlet branch pipes (51) are respectively connected to the main water inlet pipe (52), and the main water inlet pipe (52) is connected to the water inlet pipe of the water pump (4).

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