Waste gas treatment device for environmental engineering

Abstract

The utility model discloses a waste gas treatment device for environmental engineering, which relates to the technical field of waste gas treatment and comprises an alkali liquor box, a reaction tower is arranged at the top of the alkali liquor box, a gas inlet pipe is arranged on one side of the reaction tower, the reaction tower is communicated with the alkali liquor box, a liquid pump is arranged on one side of the alkali liquor box, and a gas outlet pipe is arranged on the other side of the alkali liquor box. The input end of the liquid pump is communicated with the alkali liquor tank, the output end of the liquid pump is connected with a water pipe, a spray header is arranged at one end, far away from the alkali liquor tank, of the water pipe and is positioned in the reaction tower, and the same mixing block is arranged on the inner walls of the two sides of the reaction tower; and a plurality of mixing cavities distributed at equal intervals are formed in the mixing block, and the inner walls of the mixing cavities are rotationally connected with mixing rotating wheels. According to the waste gas treatment device, on one hand, dust in waste gas can be settled, and on the other hand, acid gas in the waste gas can be neutralized, so that the waste gas treatment quality is improved.

Description

Technical Field

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

[0002] Waste gas refers to toxic and harmful gases emitted by humans during production and daily life. In particular, chemical plants, steel mills, pharmaceutical factories, coking plants, and oil refineries emit waste gas with strong odors, which seriously pollute the environment and affect human health, thus requiring the use of waste gas treatment devices for treatment.

[0003] A search revealed Chinese patent publication number CN213101469U, which discloses a domestic waste gas treatment device, including a box body, a first base at the bottom of the box body, a waste gas inlet on the surface of the box body, a cover on the top of the box body, an air outlet on the surface of the cover body, and a water storage tank inside the box body.

[0004] Existing technologies similar to the aforementioned domestic waste gas treatment devices have a short contact time between impurities and the spray liquid during the spraying process, resulting in an incomplete reaction, thus leaving room for improvement. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a waste gas treatment device for environmental engineering. Its advantages lie in two aspects: firstly, it can settle dust in the waste gas; secondly, it can neutralize acidic gases in the waste gas, thereby improving the quality of waste gas treatment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An environmental engineering waste gas treatment device includes an alkaline tank, a reaction tower at the top of the alkaline tank, an inlet pipe on one side of the reaction tower, the reaction tower being connected to the alkaline tank, a liquid pump on one side of the alkaline tank, the input end of the liquid pump being connected to the alkaline tank, and a water pipe connected to the output end of the liquid pump. A spray head is located at the end of the water pipe away from the alkaline tank, inside the reaction tower. A mixing block is provided on both inner walls of the reaction tower, and a plurality of equally spaced mixing chambers are formed inside the mixing block. A mixing wheel is rotatably connected to the inner wall of each mixing chamber. A waste gas rising hole is formed on one side of the bottom inner wall of each mixing chamber, and an alkaline solution descending hole is formed on the other side of the top inner wall of each mixing chamber. A plurality of equally spaced confluence holes are formed on the inner wall of the alkaline solution descending hole.

[0008] The above technical solution works as follows: During operation, waste gas enters the reaction tower through the inlet pipe, rises, and enters the mixing chamber through the waste gas riser hole. The liquid pump is controlled to draw alkali solution from the alkali solution tank and sprays it through the spray head along the water pipe. The alkali solution enters the mixing chamber through the manifold and alkali solution fall hole. During the rise of the waste gas and the fall of the alkali solution, the mixing wheel can be driven to rotate. The rotation of the mixing wheel can fully mix the alkali solution and the acidic gas in the waste gas to produce an acid-base neutralization reaction. After the reaction, the clean waste gas is discharged from the top of the reaction tower, and the excess alkali solution and sediment fall into the alkali solution tank, ensuring that the waste gas can fully contact the alkali solution. On the one hand, the dust in the waste gas can be settled, and on the other hand, the acidic gas in the waste gas can be neutralized, thus improving the quality of waste gas treatment.

[0009] The present invention is further configured such that a plurality of guide blocks are provided at the bottom of the mixing block, and the guide blocks are arranged alternately with the exhaust gas rising holes.

[0010] Through the above technical solutions, the design of the guide block can facilitate the introduction of exhaust gas into the exhaust gas riser hole, thereby improving the flow rate of the exhaust gas.

[0011] The present invention is further provided with a liquid guide plate on one side of the inner wall at the bottom of the reaction tower, and the top of the liquid guide plate has an arc-shaped structure.

[0012] Through the above technical solutions, the liquid guide plate can be conveniently directed to the alkaline solution tank to collect the descending precipitate and alkaline solution, thus avoiding the retention of impurities in the reaction tower.

[0013] The present invention is further configured such that a partition is slidably connected to the bottom inner wall of the alkali tank, an overflow port is provided at the top of the outer wall of the partition, a filter screen is provided on the inner wall of the overflow port, and the partition divides the alkali tank into a sedimentation zone and a supply zone.

[0014] Through the above technical solution: the excess alkali solution and precipitate after the reaction will enter the sedimentation zone, and the solid precipitate will concentrate at the bottom of the sedimentation zone. As the liquid level in the sedimentation zone rises, the excess liquid will flow through the overflow port into the supply zone for easy reuse and to avoid waste of alkali solution.

[0015] The present invention is further configured such that a sedimentation outlet is provided at the bottom of the end of the alkali tank away from the liquid pump, and a sedimentation discharge pipe is inserted into the inner wall of the sedimentation outlet.

[0016] The above technical solution, namely the setting of the sediment discharge pipe, allows for convenient cleaning of the sediment in the sedimentation zone, thus improving the ease of operation.

[0017] The present invention is further configured such that a guide plate is provided at the bottom of the sedimentation zone, and the top of the guide plate has an arc-shaped structure.

[0018] The above technical solution, with its guide plate, facilitates the flow of sediment into the sediment discharge pipe, improving the ease of sediment cleaning.

[0019] The present invention is further configured such that a fan is provided at the top of the reaction tower, and the input end of the fan is connected to the exhaust port of the reaction tower.

[0020] The above technical solutions, including the installation of fans, can increase the airflow rate inside the reaction tower and improve the efficiency of waste gas treatment.

[0021] The present invention is further configured such that the inner wall of the reaction tower is provided with a flow divider block, the flow divider block is located below the spray head, and the surface of the flow divider block is provided with a plurality of equally spaced flow divider holes.

[0022] Through the above technical solution: when the spray head sprays alkaline solution, when the alkaline solution falls onto the surface of the distribution block, the alkaline solution will disperse and fall along the distribution holes, avoiding the alkaline solution from being too concentrated and affecting the reaction rate.

[0023] The beneficial effects of this utility model are as follows:

[0024] 1. In this environmental engineering waste gas treatment device, waste gas enters the reaction tower through the inlet pipe and rises into the mixing chamber through the waste gas riser hole. The liquid pump is controlled to draw alkali solution from the alkali solution tank and sprays it through the spray head along the water pipe. The alkali solution enters the mixing chamber through the manifold and alkali solution fall hole. During the rise of the waste gas and the fall of the alkali solution, the mixing wheel can be rotated. The rotation of the mixing wheel can fully mix the alkali solution and the acidic gas in the waste gas to produce an acid-base neutralization reaction. After the reaction, the clean waste gas is discharged from the top of the reaction tower, and the excess alkali solution and precipitate fall into the alkali solution tank. This ensures that the waste gas can fully contact the alkali solution, which can settle the dust in the waste gas and neutralize the acidic gas in the waste gas, thereby improving the quality of waste gas treatment.

[0025] 2. In this environmental engineering waste gas treatment device, the excess alkaline solution and precipitate after the reaction will enter the sedimentation zone. The solid precipitate will be concentrated at the bottom of the sedimentation zone. As the liquid level in the sedimentation zone rises, the excess liquid will flow through the overflow port into the liquid supply zone for easy reuse and to avoid waste of alkaline solution. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of a waste gas treatment device for environmental engineering proposed in this utility model;

[0027] Figure 2 This is a cross-sectional structural diagram of a waste gas treatment device for environmental engineering proposed in this utility model;

[0028] Figure 3This is a cross-sectional structural diagram of the hybrid component of an environmental engineering waste gas treatment device proposed in this utility model.

[0029] In the diagram: 1. Sediment discharge pipe; 2. Alkali tank; 3. Air inlet pipe; 4. Reaction tower; 5. Fan; 6. Water pipe; 7. Liquid pump; 8. Filter screen; 9. Baffle plate; 10. Spray head; 11. Diverter hole; 12. Mixing block; 13. Guide plate; 14. Liquid guide plate; 15. Diverter block; 16. Guide block; 17. Exhaust gas riser hole; 18. Mixing impeller; 19. Mixing chamber; 20. Manifold hole; 21. Alkali descender hole. Detailed Implementation

[0030] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0031] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0032] Reference Figure 1-3 An environmental engineering waste gas treatment device includes an alkaline tank 2, a reaction tower 4 at the top of the alkaline tank 2, an inlet pipe 3 on one side of the reaction tower 4, the reaction tower 4 being connected to the alkaline tank 2, a liquid pump 7 on one side of the alkaline tank 2, the input end of the liquid pump 7 being connected to the alkaline tank 2, and a water pipe 6 connected to the output end of the liquid pump 7, with a spray head 10 at the end of the water pipe 6 away from the alkaline tank 2, the spray head 10 being located inside the reaction tower 4, a mixing block 12 on both inner walls of the reaction tower 4, a plurality of equally spaced mixing chambers 19 inside the mixing block 12, a mixing wheel 18 rotatably connected to the inner wall of the mixing chambers 19, a waste gas rising hole 17 on one side of the bottom inner wall of the mixing chambers 19, an alkaline liquid falling hole 21 on the other side of the top inner wall of the mixing chambers 19, and a plurality of equally spaced confluence holes 20 on the inner wall of the alkaline liquid falling hole 21.

[0033] In this embodiment, a plurality of guide blocks 16 are provided at the bottom of the mixing block 12. The guide blocks 16 are staggered with the exhaust gas rising hole 17. The exhaust gas can be easily introduced into the exhaust gas rising hole 17 through the guide blocks 16, thereby improving the flow rate of the exhaust gas.

[0034] A liquid guide plate 14 is provided on one side of the bottom inner wall of the reaction tower 4. The top of the liquid guide plate 14 has an arc-shaped structure. The liquid guide plate 14 can conveniently guide the descending precipitate and alkali solution into the alkali solution tank 2, so as to avoid the situation where impurities are retained in the reaction tower 4.

[0035] Furthermore, a partition 9 is slidably connected to the inner wall of the bottom of the alkali tank 2. An overflow port is provided at the top of the outer wall of the partition 9, and a filter screen 8 is provided on the inner wall of the overflow port. The partition 9 divides the alkali tank 2 into a sedimentation zone and a supply zone. Excess alkali and sediment after the reaction will enter the sedimentation zone, and the solid sediment will concentrate at the bottom of the sedimentation zone. As the liquid level in the sedimentation zone rises, the excess liquid will flow through the overflow port into the supply zone for easy reuse and to avoid waste of alkali. A sedimentation outlet is provided at the bottom of the end of the alkali tank 2 away from the liquid pump 7. A sedimentation discharge pipe 1 is inserted into the inner wall of the sedimentation outlet. The sedimentation discharge pipe 1 can be used to easily clean the sediment in the sedimentation zone, improving the convenience of operation. A guide plate 13 is provided at the bottom of the sedimentation zone. The top of the guide plate 13 has an arc-shaped structure. The guide plate 13 can be used to easily guide the sediment to the sedimentation discharge pipe 1, improving the convenience of sediment cleaning.

[0036] A fan 5 is installed at the top of the reaction tower 4. The input end of the fan 5 is connected to the exhaust port of the reaction tower 4. The fan 5 can increase the air flow rate inside the reaction tower 4 and improve the efficiency of waste gas treatment.

[0037] It is worth mentioning that the inner wall of the reaction tower 4 is provided with a flow divider block 15, which is located below the spray head 10. The surface of the flow divider block 15 is provided with several equally spaced flow divider holes 11. When the spray head 10 sprays alkaline solution, when the alkaline solution falls onto the surface of the flow divider block 15, the alkaline solution will disperse and fall along the flow divider holes 11, so as to avoid the alkaline solution being too concentrated and affecting the reaction rate.

[0038] Working principle: During operation, exhaust gas enters the reaction tower 4 through the inlet pipe 3. The exhaust gas rises and enters the mixing chamber 19 through the exhaust gas riser hole 17. The liquid pump 7 is controlled to draw alkali solution from the alkali solution tank 2 and sprays it through the spray head 10 along the water pipe 6. The alkali solution enters the mixing chamber 19 through the manifold hole 20 and the alkali solution descending hole 21. During the rise of the exhaust gas and the descent of the alkali solution, the mixing wheel 18 is driven to rotate. The rotation of the mixing wheel 18 fully mixes the alkali solution and the acidic gas in the exhaust gas to produce an acid-base neutralization reaction. After the reaction, the clean exhaust gas is discharged from the top of the reaction tower 4. The excess alkali solution and sediment fall into the alkali solution tank 2, ensuring that the exhaust gas can fully contact the alkali solution. On the one hand, the dust in the exhaust gas can be settled, and on the other hand, the acidic gas in the exhaust gas can be neutralized, thus improving the quality of exhaust gas treatment.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An environmental engineering waste gas treatment device, comprising an alkaline tank (2), a reaction tower (4) is provided on the top of the alkaline tank (2), an inlet pipe (3) is provided on one side of the reaction tower (4), the reaction tower (4) is connected to the alkaline tank (2), a liquid pump (7) is provided on one side of the alkaline tank (2), the input end of the liquid pump (7) is connected to the alkaline tank (2), the output end of the liquid pump (7) is connected to a water pipe (6), a spray head (10) is provided at the end of the water pipe (6) away from the alkaline tank (2), the spray head (10) is located inside the reaction tower (4), characterized in that, The reaction tower (4) has a mixing block (12) on both sides of its inner wall. The mixing block (12) has several equidistant mixing chambers (19) inside. The inner wall of the mixing chamber (19) is rotatably connected to a mixing wheel (18). The bottom inner wall of the mixing chamber (19) has a waste gas rising hole (17) on one side. The top inner wall of the mixing chamber (19) has an alkali solution falling hole (21) on the other side. The inner wall of the alkali solution falling hole (21) has several equidistant confluence holes (20).

2. The waste gas treatment device for environmental engineering according to claim 1, characterized in that, The bottom of the mixing block (12) is provided with several guide blocks (16), and the guide blocks (16) are staggered with the exhaust gas rising hole (17).

3. The waste gas treatment device for environmental engineering according to claim 1, characterized in that, A liquid guide plate (14) is provided on one side of the bottom inner wall of the reaction tower (4), and the top of the liquid guide plate (14) has an arc surface structure.

4. The waste gas treatment device for environmental engineering according to claim 1, characterized in that, The bottom inner wall of the alkali tank (2) is slidably connected to a partition (9), and the top of the outer wall of the partition (9) is provided with an overflow port. The inner wall of the overflow port is provided with a filter screen (8). The partition (9) divides the alkali tank (2) into a sedimentation zone and a supply zone.

5. The waste gas treatment device for environmental engineering according to claim 4, characterized in that, The bottom of the alkaline tank (2) away from the liquid pump (7) has a sedimentation outlet, and a sedimentation discharge pipe (1) is inserted into the inner wall of the sedimentation outlet.

6. The waste gas treatment device for environmental engineering according to claim 5, characterized in that, A guide plate (13) is provided at the bottom of the sedimentation zone, and the top of the guide plate (13) has an arc-shaped structure.

7. The waste gas treatment device for environmental engineering according to claim 1, characterized in that, A fan (5) is installed at the top of the reaction tower (4), and the input end of the fan (5) is connected to the exhaust port of the reaction tower (4).

8. A waste gas treatment device for environmental engineering according to any one of claims 1-7, characterized in that, The inner wall of the reaction tower (4) is provided with a flow divider block (15), which is located below the spray head (10). The surface of the flow divider block (15) is provided with a number of equally spaced flow divider holes (11).

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