Waste gas desulfurization and dust removal device for renewable chemical materials

Abstract

The utility model discloses a renewable chemical material waste gas desulfurization and dust removal device which comprises a treatment box body I and a grating plate I. The grating plate I is fixedly connected to the inner wall of the lower end of the treatment box body I. Two symmetrically-distributed keel frames are fixedly installed at the upper end of the grating plate I. The lower end of the grating plate I is fixedly connected with the lower end of the treatment box body II. A first airflow baffle is installed in each keel frame, a second airflow baffle is installed between the inner wall of the first treatment box body and the outer walls of the two keel frames, a third airflow baffle is installed between the outer walls of the two keel frames, and the first airflow baffles, the second airflow baffles and the third airflow baffles are arranged on the vertical face in a crossed mode. The lower end of the treatment box body I is fixedly connected with a treatment box body II, and the treatment box body II is provided with a gas inlet component. According to the utility model, by changing the flow direction of gas flow, the contact reaction time of foul waste gas containing H2S and a chemical material is greatly prolonged, and the quantity of dust adsorbed and intercepted by the material is increased, so that the aim of synchronous desulfurization and dust removal is fulfilled.

Description

Technical Field

[0001] This utility model relates to the field of waste gas deodorization technology, specifically a waste gas desulfurization and dust removal device made of renewable chemical materials. Background Technology

[0002] In the field of waste gas deodorization technology, the most widely used methods today are biological deodorization and chemical scrubbing. Biological deodorization includes technologies and devices such as biological soil filters, biological filters, and bio-trickling filters.

[0003] However, biological methods also require an initial biofilm formation time. For emission sites with strict requirements or environments requiring end-of-pipe emergency treatment, biological methods are not suitable. Existing chemical scrubbing processes often use corrosive agents such as sodium hydroxide, dilute sulfuric acid, and sodium hypochlorite, which can easily damage the surrounding environment and increase operational and regulatory risks. On the other hand, when using chemical scrubbing processes, the atomization spray area (gas-liquid ratio) of the scrubbing tower spray head is a factor affecting deodorization. The contact reaction between the chemical scrubbing process and the odorous gas components in the packing layer, as well as the control of the pH value of the circulating water tank, are also factors that need to be considered. Otherwise, the ideal pretreatment effect cannot be achieved. It can be seen that it has very strict requirements for operating conditions. In addition, a clean water scrubbing section is usually added at the end of the chemical scrubbing process to eliminate gaseous chemical residues, which increases costs to some extent. Utility Model Content

[0004] The purpose of this invention is to provide a waste gas desulfurization and dust removal device for renewable chemical materials, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a waste gas desulfurization and dust removal device for renewable chemical materials, comprising a treatment box body 1, a grid plate 1, a keel frame, an airflow baffle 1, an airflow baffle 2, an airflow baffle 3, a grid plate 2, a treatment box body 2, an air intake component, and a spray unit. The grid plate 1 is fixedly connected to the lower inner wall of the treatment box body 1. Two symmetrically distributed keel frames are fixedly installed on the upper end of the grid plate 1. An airflow baffle 1 is installed in each keel frame. An airflow baffle 2 is installed between the inner wall of the treatment box body 1 and the outer walls of the two keel frames. An airflow baffle 3 is installed between the outer walls of the two keel frames. The two ends of the airflow baffle 3 are fixedly connected to the inner wall of the treatment box body 1. The airflow baffle 1, airflow baffle 2, and airflow baffle 3 are arranged crosswise on the vertical plane. The lower end of the treatment box body 1 is fixedly connected to the treatment box body 2. An air intake component is provided on the treatment box body 2. The spray unit is located at one end of the treatment box body 1.

[0006] In a preferred embodiment: the air intake component includes an air intake pipe installed on one side of the processing box body, a cap installed on one side of the air intake pipe, and an air outlet pipe installed on one side of the upper end of the processing box body. A pressure gauge is also installed on the air intake pipe, and a detector is provided on the lower end wall of the air outlet pipe on one side of the upper end of the processing box body.

[0007] In a preferred embodiment: the detector is an H2S detector, and the outer wall of the keel frame is provided with organic fiber cloth.

[0008] In a preferred embodiment: the spraying unit includes a pipe 1 installed at the lower end of the treatment tank body 2, a pipe 2 connected to the pipe 1 via a three-way valve, a pipe 3 connected to the pipe 1 via a three-way valve, a medicine storage tank connected to the pipe 3, a pipe 4 connected to the medicine storage tank, two symmetrically distributed spray heads installed at the upper end of the pipe 4, and a cleaning component. The two spray heads are located above the two keel frames. Two solenoid valves are installed on the pipe 4, a return valve is installed on the pipe 2, a drain valve is installed on the pipe 3, a circulating water pump is installed at the lower end of the pipe 4, and the cleaning component is located at the upper end of the treatment tank body 1.

[0009] In a preferred embodiment: openings are provided on both sides of the first grid plate, and a flow meter is installed on the fourth pipe.

[0010] In a preferred embodiment: the cleaning component includes a flange cover plate, fastening bolts and a mounting plate, the mounting plate being integrally disposed on the upper outer wall of the processing box body, and the flange cover plate being mounted on the upper end of the mounting plate by fastening bolts.

[0011] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0012] This utility model, through the arrangement of a treatment box body 1, a grid plate 1, a keel frame, an airflow baffle 1, an airflow baffle 2, an airflow baffle 3, a grid plate 2, and a treatment box body 2, replaces the cloth bag with chemical organic fiber cloth. The chemical material has a fine pore size, soft texture, and strong air permeability. By adding baffles inside the treatment box body 1 and the keel frame, the airflow direction is changed, which greatly enhances the contact reaction time between the malodorous waste gas containing H2S and the chemical material, increases the amount of dust adsorbed and trapped by the material, and achieves the purpose of simultaneous desulfurization and dust removal.

[0013] By using chemical organic fiber cloth and spraying units, the material contains a large number of hydroxyl groups and other groups that can react rapidly with gaseous sulfur components. This allows for continuous contact degradation of sulfur-containing odorous components. When the material is saturated with gaseous sulfur and the gas detector at the outlet of the device detects that the H2S level is below the standard, sodium hydroxide solution can be circulated and sprayed onto the inner surface of the chemical material. The amount of solution used is relatively small. After the material is gradually wetted and allowed to dry, it can regain its ability to bind and degrade sulfur.

[0014] By cleaning the components, when the pressure gauge at the air inlet of the device is too high, it indicates that there is an excessive amount of dust and other substances adsorbed on the surface of the chemical fiber material. At this time, open the top flange cover of the treatment box body, and use high-pressure air from the air compressor or a vibrator to spray or vibrate from the inner surface of the material to the outer surface, so that the dust adsorbed in the material can be separated and removed and discharged from the device. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the main structure of the dust removal device of this utility model;

[0017] Figure 2 This is a utility model Figure 1 A magnified structural diagram at point A;

[0018] Figure 3 This is a utility model Figure 1 A magnified structural diagram at point B;

[0019] Figure 4 This is a schematic diagram of the dust removal device of this utility model from the left side.

[0020] Figure 5 This is a schematic diagram of the airflow direction structure of the dust removal device of this utility model;

[0021] Figure 6 This is a top view structural schematic diagram of the dust removal device of this utility model.

[0022] In the diagram: 1. Treatment box body one; 2. Grille plate one; 3. Frame; 4. Airflow baffle one; 5. Airflow baffle two; 6. Airflow baffle three; 7. Grille plate two; 8. Treatment box body two; 9. Inlet pipe; 10. Cap brim; 11. Outlet pipe; 12. Pressure gauge; 13. Detector; 14. Organic fiber cloth; 15. Pipe one; 16. Three-way valve; 17. Pipe two; 18. Pipe three; 19. Medicine storage tank; 20. Pipe four; 21. Spray head; 22. Solenoid valve; 23. Return valve; 24. Sewage valve; 25. Circulating water pump; 26. Opening; 27. Flange cover plate; 28. Fastening bolts; 29. ​​Mounting plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-6 This utility model provides a technical solution: a waste gas desulfurization and dust removal device for renewable chemical materials, comprising a treatment box body 1, a grid plate 2, a frame 3, an airflow baffle 4, an airflow baffle 5, an airflow baffle 6, a grid plate 7, a treatment box body 8, an air intake component, and a spray unit. The grid plate 2 is fixedly connected to the lower inner wall of the treatment box body 1. Two symmetrically distributed frame frames 3 are fixedly installed on the upper end of the grid plate 2. Each frame frame 3 contains an airflow baffle 4. An airflow baffle 2 5 is installed between the inner wall of the treatment box body 1 and the outer walls of the two keel frames 3. An airflow baffle 3 6 is installed between the outer walls of the two keel frames 3. The two ends of the airflow baffle 3 6 are fixedly connected to the inner wall of the treatment box body 1. The airflow baffle 1 4, airflow baffle 2 5 and airflow baffle 3 6 are arranged crosswise on the vertical plane. The lower end of the treatment box body 1 is fixedly connected to the treatment box body 2 8. The treatment box body 2 8 is provided with an air intake component. The spray unit is located at one end of the treatment box body 1.

[0025] The air intake component includes an air intake pipe 9 installed on one side of the treatment box body 1, a cap 10 installed on one side of the air intake pipe 9, and an air outlet pipe 11 installed on one side of the upper end of the treatment box body 2. The waterproof cap 10 is designed so that the air outlet faces downward, which can prevent the sprayed medicine from flowing into the air intake pipe 9 and causing pipe corrosion, thus avoiding the problem of air intake. A pressure gauge 12 is also installed on the air intake pipe 9, and a detector 13 is provided on the lower end wall of the air outlet pipe 11 on one side of the upper end of the treatment box body 2.

[0026] The detector 13 is an H2S detector 13, and the outer wall of the keel frame 3 is provided with organic fiber cloth 14.

[0027] When the pressure gauge 12 near the air inlet pipe 9 is too high, it indicates that the resistance of gas penetration through the material has increased and a lot of dust has been adsorbed on the material surface. It is necessary to blow off or vibrate the material surface to remove dust. The air intake should be stopped briefly, the flange cover 27 of the device should be opened, and the keel frame 3 can be taken out directly. The air pressure gun of the air compressor should be used to blow off the material from the inner surface to the outer surface under a certain pressure. Alternatively, a vibrator can be used to vibrate the inner side of the material to remove dust at a low frequency.

[0028] The spray unit includes a first pipe 15 installed at the lower end of the treatment tank body 2 8, a second pipe 17 connected to the first pipe 15 via a three-way valve 16, a third pipe 18 connected to the first pipe 15 via a three-way valve 16, a medicine storage tank 19 connected to the third pipe 18, a fourth pipe 20 connected to the medicine storage tank 19, two symmetrically distributed spray heads 21 installed at the upper end of the fourth pipe 20, and a cleaning component. The two spray heads 21 are located above the two keel frames 3. Two solenoid valves 22 are installed on the fourth pipe 20. A return valve 23 is installed on the second pipe 17. A drain valve 24 is installed on the third pipe 18. A circulating water pump 25 is installed at the lower end of the fourth pipe 20. The cleaning component is located at the upper end of the treatment tank body 1 1.

[0029] The two side walls of the grating plate 2 are provided with openings 26, and the flow meter is installed on the pipe 20.

[0030] The cleaning component includes a flange cover plate 27, fastening bolts 28, and a mounting plate 29. The mounting plate 29 is integrally disposed on the upper outer wall of the processing box body 1, and the flange cover plate 27 is installed on the upper end of the mounting plate 29 by fastening bolts 28.

[0031] The working principle of this utility model:

[0032] First, all the equipment is made of fiberglass. The equipment consists of four parts: the treatment box body 28 is a truncated quadrangular shape, the treatment box body 1 and the flange cover 27 are prism-shaped, the treatment box body 1 is the air inlet pipe 9, the dust collection and discharge area and the circulating spray liquid return area, the treatment box body 28 has two keel frame sets 3 in the middle of the area where chemical materials react directly with the waste gas, and the upper part of the interior is the material regeneration spray and the clean air outlet pipe 11 area. The exterior of the equipment consists of the storage tank 19 of circulating liquid sodium hydroxide solution, the circulating water pump 25, the flow meter and other spray pipeline accessories.

[0033] Secondly, sulfur- and dust-containing gas enters through the inlet pipe 9 of the device, and the exhaust gas begins to flow from bottom to top. The bottom plane of the keel frame 3 is completely sealed, and the bottom layers of both keel frames 3 are fixed to the device by the grid plate. Therefore, the gas can only permeate from the side of the keel frame 3 - the outer surface of the chemical material. After passing through the intermediate airflow baffles inside and outside the keel frame 3, the exhaust gas can come into contact with the chemical material multiple times and react, increasing the reaction residence time. This avoids the gas from directly escaping from the bottom to the top of the keel frame 3 vertically, which would result in poor desulfurization effect. The upper layers of the two keel frames 3 are fixed to the device by the grid plate 7. The top of the keel frame 3 is unobstructed, and the gas can be directly discharged through the top to the outlet pipe 11.

[0034] Then, when the H2S detector 13 near the air outlet detects that the gas concentration exceeds the standard, the chemical materials on the keel frame 3 need to be regenerated by alkaline spraying. First, the air intake is briefly stopped, the flange cover 27 on the top of the device is opened, and then the material dust removal operation can be carried out to avoid dust clogging the material pores. Next, sodium hydroxide solution is sprayed onto the surface of the material inside the keel frame 3 through the spray head 21. The atomized spray flow rate and pressure are controlled by the flow meter to prevent excessive spray pressure from damaging the chemical materials. During the spraying process, the bottom return valve 23 of the treatment box body 28 is opened to allow the residual alkaline circulating liquid to flow back to the storage tank 19 until the spray liquid slowly wets the entire chemical fiber material. After the material is left to dry, the chemical fiber material can restore its air permeability, desulfurization and dust removal efficiency. At this time, the bottom return valve 23 of the treatment box body 28 can be closed and the air intake can be restarted.

[0035] Finally, when too much dust accumulates at the bottom of the treatment tank body 28, the machine can be kept running without stopping. The bottom drain valve 24 can be opened to discharge the dust outside the device. If the chemical solution in the dosing tank deteriorates or there is residual chemical solution or other debris in the treatment tank body 1, the bottom drain valve 24 can also be opened to ensure the chemical material regeneration capacity and deodorization effect.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A waste gas desulfurization and dust removal device for renewable chemical materials, comprising a treatment box body (1), a grid plate (2), a frame (3), an airflow baffle (4), an airflow baffle (5), an airflow baffle (6), a grid plate (7), a treatment box body (8), an air inlet component, and a spray unit, characterized in that: A grid plate (2) is fixedly connected to the lower inner wall of the processing box body (1). Two symmetrically distributed keel frames (3) are fixedly installed on the upper end of the grid plate (2). An airflow baffle (4) is installed in each keel frame (3). An airflow baffle (5) is installed between the inner wall of the processing box body (1) and the outer wall of the two keel frames (3). An airflow baffle (6) is installed between the outer walls of the two keel frames (3). The two ends of the airflow baffle (6) are fixedly connected to the inner wall of the processing box body (1). The airflow baffle (4), airflow baffle (5), and airflow baffle (6) are arranged in a cross pattern on the vertical plane. A processing box body (8) is fixedly connected to the lower end of the processing box body (1). An air intake component is provided on the processing box body (8). The spray unit is located at one end of the processing box body (1).

2. The waste gas desulfurization and dust removal device for renewable chemical materials according to claim 1, characterized in that: The air intake component includes an air intake pipe (9) installed on one side of the processing box body (1), a cap (10) installed on one side of the air intake pipe (9), and an air outlet pipe (11) installed on one side of the upper end of the processing box body (8). A pressure gauge (12) is also installed on the air intake pipe (9), and a detector (13) is provided on the lower end wall of the air outlet pipe (11) on one side of the upper end of the processing box body (8).

3. The waste gas desulfurization and dust removal device for renewable chemical materials according to claim 2, characterized in that: The detector (13) is an H2S detector (13), and the outer wall of the keel frame (3) is provided with organic fiber cloth (14).

4. The waste gas desulfurization and dust removal device for renewable chemical materials according to claim 3, characterized in that: The spray unit includes a pipe 1 (15) installed at the lower end of the treatment tank body 2 (8), a pipe 2 (17) connected to the pipe 1 (15) via a three-way valve (16), a pipe 3 (18) connected to the pipe 1 (15) via a three-way valve (16), a medicine storage tank (19) connected to the pipe 3 (18), a pipe 4 (20) connected to the medicine storage tank (19), two symmetrically distributed spray heads (21) installed at the upper end of the pipe 4 (20), and a cleaning component. The two spray heads (21) are located above the two keel frames (3). Two solenoid valves (22) are installed on the pipe 4 (20), a return valve (23) is installed on the pipe 2 (17), a drain valve (24) is installed on the pipe 3 (18), a circulating water pump (25) is installed at the lower end of the pipe 4 (20), and the cleaning component is located at the upper end of the treatment tank body 1 (1).

5. The waste gas desulfurization and dust removal device for renewable chemical materials according to claim 4, characterized in that: The two side walls of the grating plate (2) are provided with openings (26), and the pipe (20) is equipped with a flow meter.

6. The waste gas desulfurization and dust removal device for renewable chemical materials according to claim 5, characterized in that: The cleaning components include a flange cover plate (27), fastening bolts (28) and a mounting plate (29). The mounting plate (29) is integrally disposed on the upper outer wall of the processing box body (1). The flange cover plate (27) is installed on the upper end of the mounting plate (29) by fastening bolts (28).

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