Gas washing device suitable for flue gas treatment

Abstract

The utility model discloses a gas washing device suitable for flue gas treatment, which comprises a gas washing box and a gas inlet pipe communicated with an external gas source, the gas inlet pipe penetrates into the gas washing box from one side of a top plate of the gas washing box, an exhaust pipe is mounted on one side, far away from the gas inlet pipe, of the upper surface of the gas washing box, the gas inlet pipe is L-shaped in the gas washing box, and the gas inlet pipe is communicated with the gas washing box. A gas outlet of the gas inlet pipe is bent towards the exhaust pipe at a position close to the bottom plate of the gas washing box; a first partition plate and a second partition plate are sequentially arranged in the gas washing box from bottom to top, the end, close to the gas inlet pipe, of the first partition plate is fixedly connected with the inner wall of the gas washing box, and the end, away from the gas inlet pipe, of the first partition plate is not connected with the inner wall of the gas washing box. By arranging the first partition plate and the second partition plate which are staggered with each other, smoke advances along an S-shaped route in the gas washing box, so that the contact time of the smoke and gas washing liquid is greatly prolonged, the gas washing effect is improved, pollutants in discharged smoke are reduced, and the environment protection is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of air scrubbers, in particular to an air scrubber suitable for flue gas treatment. Background Art

[0002] In the combustion reaction process of various industries, in addition to solid coke products, flue gas, organic gas and volatile organic compounds are also produced. The flue gas is treated by scrubbing. Most of the existing scrubbing devices have poor scrubbing effect. The contact time between flue gas and scrubbing liquid is short. If the contact time is to be extended, the volume of the scrubbing box often needs to be increased, which increases the processing cost. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a scrubbing device suitable for flue gas treatment, which greatly prolongs the contact time between flue gas and scrubbing liquid, improves the scrubbing effect, reduces pollutants in the exhausted flue gas, is beneficial to environmental protection, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air scrubber suitable for flue gas treatment, comprising an air inlet pipe connected to an air scrubber box and an external air source, the air inlet pipe penetrates into the air scrubber box from one side on the top plate of the air scrubber box, an exhaust pipe is installed on the upper surface of the air scrubber box away from the air inlet pipe, the air inlet pipe is L-shaped in the air scrubber box, and the air outlet of the air inlet pipe is bent toward the exhaust pipe near the bottom plate of the air scrubber box; the interior of the air scrubber box is provided with a partition plate 1 and a partition plate 2 in sequence from bottom to top, and the partition plate 1 and the partition plate 2 are provided ... One end of the middle partition plate 1 close to the air inlet pipe is fixedly connected to the inner wall of the air washing box, and the end of the partition plate 1 away from the air inlet pipe is not connected to the inner wall of the air washing box; one end of the partition plate 2 close to the air inlet pipe is not connected to the inner wall of the air washing box, and the end of the partition plate 2 away from the air inlet pipe is fixedly connected to the inner wall of the air washing box; an inlet pipe connected to an external washing liquid source is provided at the lower part of the upper side of the air washing box close to the air inlet pipe, and an overflow pipe connected to the external washing liquid source is provided at the upper side of the side surface of the air washing box away from the air inlet pipe.

[0005] As a preferred technical solution of the utility model, the number of the partitions 1 and 2 is not less than two groups, the two groups of partitions 1 and 2 are evenly arranged, and the partitions 1 and 2 are alternately arranged from bottom to top in the washing box.

[0006] As a preferred technical solution of the utility model, the partition one and the partition two are both inclined, wherein the partition one is inclined upward in the direction away from the air intake pipe, and the partition two is inclined upward in the direction close to the air intake pipe.

[0007] As a preferred technical solution of the utility model, supporting feet are arranged at the four corners of the lower surface of the air washing box.

[0008] As a preferred technical solution of the utility model, a liquid discharge pipe is arranged at a lower part of the side surface of the gas washing box away from the liquid inlet pipe, and a valve is installed on the liquid discharge pipe.

[0009] As a preferred technical solution of the utility model, a box plate is installed on the side surface of the air washing box, and a plurality of screw holes are provided on the side surface of the box plate and at corresponding positions on the air washing box.

[0010] As a preferred technical solution of the utility model, a sealing gasket matching the air washing box is provided on the inner surface of the box plate.

[0011] As a preferred technical solution of the utility model, a plurality of partitions three are evenly arranged on the lower surface of the top plate of the air washing box near the exhaust pipe, and the partitions three are inclined downward toward the direction close to the exhaust pipe.

[0012] As a preferred technical solution of the utility model, a plurality of bubble breaking cones are evenly arranged on the lower surfaces of the partition plate 1 and the partition plate 2.

[0013] Compared with the prior art, the beneficial effect of the utility model is that by arranging mutually staggered partitions 1 and 2, the flue gas is allowed to advance along an "S"-shaped route in the scrubbing box, thereby greatly prolonging the contact time between the flue gas and the scrubbing liquid, improving the scrubbing effect, reducing pollutants in the exhaust flue gas, and being beneficial to protecting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a partial structural schematic diagram of the utility model;

[0016] Figure 3 For this utility model Figure 2 A side view schematic diagram of the structure;

[0017] Figure 4 This is a structural schematic diagram of the box board of the utility model;

[0018] Figure 5 It is a structural schematic diagram of another embodiment of the utility model.

[0019] In the figure: 1 air washing box, 2 air inlet pipe, 3 partition plate 1, 4 partition plate 2, 5 liquid inlet pipe, 6 overflow pipe, 7 exhaust pipe, 8 liquid discharge pipe, 9 valve, 10 partition plate 3, 11 support leg, 12 box plate, 13 screw hole, 14 sealing gasket, 15 bubble breaking cone. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5 The utility model provides a technical solution: a scrubbing device suitable for flue gas treatment, comprising a scrubbing box 1 and a plurality of air inlet pipes 2 connected to an external air source, the air inlet pipe 2 penetrates into the scrubbing box 1 from one side on the top plate of the scrubbing box 1, and an exhaust pipe 7 is installed on the upper surface of the scrubbing box 1 away from the air inlet pipe 2, which is used to discharge the flue gas treated by scrubbing; the shape of the air inlet pipe 2 in the scrubbing box 1 is L-shaped, and the air outlet of the air inlet pipe 2 is bent toward the exhaust pipe 7 near the bottom plate of the scrubbing box 1, and the length of the bent part is greater than 5 cm. The external air source conveys gas using a gas-specific vortex high-pressure blower with high pressure and deep conveying depth, which is very suitable for processing small gas volume conditions, and the high depth can greatly increase the gas treatment effect and make the gas impurity removal effect better.

[0022] The interior of the scrubber box 1 is provided with partition 1 3 and partition 2 4 in sequence from bottom to top, wherein one end of the partition 1 3 close to the air inlet pipe 2 is fixedly connected to the inner wall of the scrubber box 1, and the end of the partition 1 3 away from the air inlet pipe 2 is not connected to the inner wall of the scrubber box 1; one end of the partition 2 4 close to the air inlet pipe 2 is not connected to the inner wall of the scrubber box 1, and the end of the partition 2 4 away from the air inlet pipe 2 is fixedly connected to the inner wall of the scrubber box 1. By arranging the staggered partitions 1 3 and 2 4 to form a bent flue gas passage, the flue gas advances along an "S" shaped route in the scrubber box 1, thereby greatly prolonging the contact time between the flue gas and the scrubbing liquid, improving the scrubbing effect, reducing pollutants in the exhaust flue gas, and being beneficial to protecting the environment.

[0023] A liquid inlet pipe 5 connected to an external washing liquid source is provided at the lower part of the upper side of the washing box 1 close to the air inlet pipe 2, and an overflow pipe 6 connected to the external washing liquid source is provided at the upper side of the side surface of the washing box 1 away from the air inlet pipe 2. A circulating pump is provided in the container where the external washing liquid source is located, for transporting the washing liquid returned from the overflow pipe 6 to the container and then from the liquid inlet pipe 5 to the washing box 1, so that the mixed water inside the washing box 1 can be circulated, and the water inside the washing pool can be stabilized in a full state under its action.

[0024] The liquid inlet pipe 5 and the overflow pipe 6 are designed at the diagonal position, which can circulate the water to the greatest extent, minimize the sedimentation of the washing tank water inside the washing tank, and reduce the accumulation of some solids.

[0025] The scrubbing liquid arranged in the container where the external scrubbing liquid source is located may be clean water, or a corresponding chemical treatment liquid may be arranged according to the soluble components in the flue gas.

[0026] According to a preferred technical solution, since one end of the partition 3 close to the air inlet pipe 2 is fixedly connected to the inner wall of the scrubber box 1, a through hole is provided on the partition 3 for the air inlet pipe 2 to pass through, so as to facilitate the gas transportation to the bottom of the scrubber box 1.

[0027] According to a preferred technical solution, the number of the partition plates 1 3 and the partition plates 2 4 is not less than two groups, the two groups of partition plates 1 3 and the partition plates 2 4 are evenly arranged, and the partition plates 1 3 and the partition plates 2 4 are alternately arranged from bottom to top in the scrubbing box 1. By arranging two or more groups of partition plates 1 3 and the partition plates 2 4, the contact time between the flue gas and the scrubbing liquid is further prolonged, and the flue gas treatment effect can be further improved.

[0028] In an optional embodiment, the partition plate 1 3 can be set to three, and the partition plate 2 4 can be set to one, so that the flue gas rises obliquely during the process of contacting with the scrubbing liquid and being discharged into the exhaust pipe 7.

[0029] A further preferred technical solution is that both partition 1 3 and partition 2 4 are inclined, wherein partition 1 3 is inclined upward in the direction away from the air inlet pipe 2, and partition 2 4 is inclined upward in the direction close to the air inlet pipe 2, that is, the smoke passage formed between partition 1 3, partition 2 4 and the inner wall of the scrubber box 1 are all inclined upward, so that the smoke can move and rise more smoothly along the designed route.

[0030] A preferred technical solution is that a drain pipe 8 is provided on the lower part of the side surface of the scrubbing box 1 away from the liquid inlet pipe 5, and a valve 9 is installed on the drain pipe 8. The valve 9 can be a manual valve or an electric valve, which is used to control the switch of the drain pipe 8. After treating a certain flow rate of flue gas or a period of time, the scrubbing liquid needs to be replaced, and the scrubbing box 1 also needs to be cleaned regularly. At this time, the circulating pump in the container where the external scrubbing liquid source is located is turned off, and then the valve 9 is opened to discharge the used scrubbing liquid and replace it.

[0031] A further preferred technical solution is that a box plate 12 is installed on the side surface of the scrubber box 1, and a plurality of screw holes 13 are provided on the side surface of the box plate 12 and at corresponding positions on the scrubber box 1. The box plate 12 and the scrubber box 1 are fixed by arranging sealing bolts in the screw holes 13. When the scrubber box 1 needs to be cleaned, the sealing bolts are removed, the box plate 12 is opened, and the scrubber box 1 and the partitions therein can be cleaned.

[0032] Furthermore, a sealing gasket 14 matching the air-washing box 1 is provided on the inner surface of the box plate 12, so as to seal between the box plate 12 and the air-washing box 1 and prevent water leakage, air leakage and the like.

[0033] Optionally, a plurality of partition plates 10 are evenly arranged on the lower surface of the top plate of the scrubbing box 1 near the exhaust pipe 7. The partition plates 10 are inclined downward toward the direction close to the exhaust pipe 7. The partition plates 10 are mainly used to prevent the smoke near the exhaust pipe 7 from flowing back along the top partition plates 4. An exhaust fan is arranged outside the exhaust pipe 7 to accelerate the discharge of the smoke that has been scrubbed.

[0034] Optionally, a plurality of bubble breaking cones 15 are evenly arranged on the lower surfaces of the partition 1 3 and the partition 2 4 to break the bubbles generated by the flue gas in the scrubbing liquid, so as to prevent the gas in the bubbles from being unable to contact with the scrubbing liquid and affecting the flue gas treatment effect.

[0035] Optionally, legs 11 are provided at four corners of the lower surface of the scrubber box 1 to support the scrubber box 1 .

[0036] The undisclosed parts in the present utility model are all prior art, and their specific structures, materials and working principles are not described in detail. Although the embodiments of the present utility model have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the attached claims and their equivalents.

Claims

1. A scrubbing device suitable for flue gas treatment, comprising a scrubbing box (1) and an air inlet pipe (2) connected to an external air source, characterized in that: The air inlet pipe (2) penetrates into the air washing box (1) from one side on the top plate of the air washing box (1); an exhaust pipe (7) is installed on the upper surface of the air washing box (1) away from the air inlet pipe (2); the shape of the air inlet pipe (2) in the air washing box (1) is L-shaped, and the air outlet of the air inlet pipe (2) is bent toward the exhaust pipe (7) near the bottom plate of the air washing box (1); a partition plate 1 (3) and a partition plate 2 (4) are sequentially arranged inside the air washing box (1) from bottom to top, wherein one end of the partition plate 1 (3) near the air inlet pipe (2) is fixedly connected to the inner wall of the air washing box (1), and the partition plate 1 (3) is connected to the inner wall of the air washing box (1). The end of the first plate (3) away from the air inlet pipe (2) is not connected to the inner wall of the air washing box (1); the end of the second plate (4) close to the air inlet pipe (2) is not connected to the inner wall of the air washing box (1), and the end of the second plate (4) away from the air inlet pipe (2) is fixedly connected to the inner wall of the air washing box (1); a liquid inlet pipe (5) connected to an external air washing liquid source is provided at the lower part of the upper surface of the air washing box (1) close to the air inlet pipe (2), and an overflow pipe (6) connected to the external air washing liquid source is provided at the upper part of the side surface of the air washing box (1) away from the air inlet pipe (2).

2. A scrubbing device suitable for flue gas treatment according to claim 1, characterized in that: The partition plate 1 (3) is provided with a through hole for the air intake pipe (2) to pass through.

3. A scrubbing device suitable for flue gas treatment according to claim 2, characterized in that: The number of the partition plates 1 (3) and the partition plates 2 (4) is not less than two groups, the two groups of partition plates 1 (3) and the partition plates 2 (4) are evenly arranged, and the partition plates 1 (3) and the partition plates 2 (4) are alternately arranged from bottom to top in the air washing box (1).

4. A scrubbing device suitable for flue gas treatment according to claim 2 or 3, characterized in that: The partition plate 1 (3) and the partition plate 2 (4) are both arranged at an inclination, wherein the partition plate 1 (3) is arranged upwardly at an inclination in a direction away from the air inlet pipe (2), and the partition plate 2 (4) is arranged upwardly at an inclination in a direction close to the air inlet pipe (2).

5. A scrubbing device suitable for flue gas treatment according to claim 4, characterized in that: Support feet (11) are provided at the four corners of the lower surface of the scrubbing box (1).

6. A scrubbing device suitable for flue gas treatment according to claim 4, characterized in that: A liquid discharge pipe (8) is provided on the lower part of the side surface of the gas washing box (1) away from the liquid inlet pipe (5), and a valve (9) is installed on the liquid discharge pipe (8).

7. A scrubbing device suitable for flue gas treatment according to claim 4, characterized in that: A box plate (12) is installed on the side surface of the scrubbing box (1), and a plurality of screw holes (13) are provided on the side surface of the box plate (12) and at corresponding positions on the scrubbing box (1).

8. A scrubbing device suitable for flue gas treatment according to claim 7, characterized in that: The inner surface of the box plate (12) is provided with a sealing gasket (14) matching the air washing box (1).

9. A scrubbing device suitable for flue gas treatment according to claim 4, characterized in that: A plurality of partition plates (10) are evenly arranged on the lower surface of the top plate of the scrubbing box (1) near the exhaust pipe (7), and the partition plates (10) are arranged to be inclined downward in a direction close to the exhaust pipe (7).

10. A scrubbing device suitable for flue gas treatment according to claim 4, characterized in that: A plurality of bubble breaking cones (15) are evenly arranged on the lower surfaces of the partition plate 1 (3) and the partition plate 2 (4).

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