Chemical waste gas absorption treatment device

Abstract

A chemical waste gas absorption treatment device comprises a mounting frame, a filter barrel is arranged on the mounting frame, a gas inlet pipe and a gas outlet pipe are communicated with the filter barrel, a ball valve is arranged at the end, close to the gas inlet pipe, of the filter barrel, and a mixing barrel is mounted on the filter barrel through a positioning frame; the mixing barrel and the filtering barrel are jointly communicated with a liquid conveying pipe, a liquid conveying screw rod is rotationally arranged in the liquid conveying pipe, a spray head is arranged at the end, close to the air outlet pipe, of the filtering barrel, a liquid collecting barrel with an inner cavity is arranged on the filtering barrel, and the liquid collecting barrel is communicated with a mounting shell; and a fan and a heating pipe are arranged in the mounting shell. Waste liquid can be recycled through the arrangement of the liquid collecting barrel, absorption liquid can be heated through the draught fan and the heating pipe, harmful substances in the liquid are vaporized and separated, the liquid can be recycled, and the liquid can be conveniently recycled.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical waste gas treatment, in particular to a chemical waste gas absorption treatment device. Background Art

[0002] Chemical waste gas refers to toxic and harmful gases discharged by chemical plants during chemical production. The waste gas contains a variety of pollutants with complex physical and chemical properties and different toxicities. In order to avoid direct discharge to pollute the environment and affect human health, these gases must be treated before discharge.

[0003] At present, waste gas treatment devices generally use the absorption method to treat waste gas. By spraying absorption solution into the waste gas, harmful gases, particulate matter and other pollutants in the waste gas are absorbed through physical and chemical reactions, thereby achieving purification. However, after the waste gas is treated, the existing waste gas treatment devices directly discharge the absorption liquid, which not only causes a large amount of water resources to be wasted, but also the waste liquid after the waste gas is treated contains a large amount of toxic and harmful substances, and direct discharge will cause pollution to the surrounding water environment.

[0004] Therefore, there is an urgent need to provide a chemical waste gas absorption and treatment device with waste liquid recovery and treatment. Utility Model Content

[0005] In order to overcome the shortcomings of existing waste gas treatment devices that directly discharge absorption liquid after waste gas treatment, resulting in a large amount of water resource waste and pollution of the surrounding water environment, the utility model provides a chemical waste gas absorption treatment device with waste liquid recovery and treatment.

[0006] To solve the above-mentioned problem, the utility model adopts the following technical scheme: a chemical waste gas absorption and treatment device, comprising a mounting frame, a filter barrel is arranged on the mounting frame, the filter barrel is connected with an air inlet pipe and an air outlet pipe, a ball valve is arranged on the filter barrel at one end close to the air inlet pipe, a mixing barrel is installed on the filter barrel through a positioning frame, the material for making the absorption liquid can be poured into the mixing barrel for mixing, the mixing barrel and the filter barrel are connected with an infusion pipe, an infusion screw is rotatably arranged in the infusion pipe, a nozzle is arranged on the filter barrel at one end close to the air outlet pipe, a liquid collecting barrel with its own inner cavity is arranged on the filter barrel, the liquid collecting barrel is used to recover waste liquid, the liquid collecting barrel is connected with a mounting shell, a fan and a heating pipe are arranged in the mounting shell.

[0007] Furthermore, a dual-axis motor is installed on the mixing barrel, and the output shafts at both ends of the dual-axis motor are connected to connecting rods, one end of the connecting rod penetrates into the mixing barrel, and a mixing rack is provided on the surface. The operation of the dual-axis motor can drive the mixing rack to rotate to stir the material, and the other end of the connecting rod and the infusion screw are jointly provided with a pulley group, and the infusion screw can be automatically rotated by utilizing the transmission of the pulley group.

[0008] Furthermore, a placement frame is provided in the air outlet pipe, and the placement frame can be used for placing filter materials such as activated carbon. A connecting frame is fixedly connected to the placement frame, and a symmetrically distributed fixing plate is fixedly connected to the air outlet pipe. A clamping rod is slidably provided on the fixing plate, and the clamping rod can clamp the connecting frame to fix the placement frame. An elastic member is sleeved on the clamping rod.

[0009] Furthermore, a plurality of baffles are arranged in the filter barrel, and a plurality of the baffles are provided with semicircular openings for the exhaust gas to pass through, and the semicircular openings on two adjacent baffles are staggered.

[0010] Furthermore, a protective net is arranged in the installation shell.

[0011] Furthermore, a protective shell is provided on the air outlet pipe.

[0012] Compared with the prior art, the utility model has the following technical effects: 1. The waste liquid can be recycled by setting up the liquid collecting barrel, and the absorption liquid can be heated by the fan and the heating tube to vaporize and separate the harmful substances in the liquid, so that the liquid can be recycled and the liquid can be recycled conveniently.

[0013] 2. Through the setting of the double-axis motor and the mixing rack, the materials inside the mixing barrel can be stirred to make the materials mixed evenly and ensure the absorption effect of the absorption liquid.

[0014] 3. By placing the filter material in the frame, the discharged gas can be purified for the second time to ensure the gas treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the mounting frame, the filter barrel and the air outlet pipe of the utility model.

[0017] Figure 3 The utility model is a three-dimensional cross-sectional structural schematic diagram of the mixing barrel, the infusion tube and the infusion screw.

[0018] Figure 4 It is a three-dimensional cross-sectional structural schematic diagram of the filter barrel, air intake pipe and ball valve of the utility model.

[0019] Figure 5 It is a three-dimensional cross-sectional structural schematic diagram of the double-axis motor, connecting rod and mixing frame of the utility model.

[0020] Figure 6 It is a three-dimensional cross-sectional structural schematic diagram of the air outlet pipe, the fixing plate and the connecting frame of the utility model.

[0021] Figure 7 It is a three-dimensional cross-sectional structural schematic diagram of the fixing plate and the clamping rod of the utility model.

[0022] Figure 8 It is a three-dimensional cross-sectional structural schematic diagram of the filter barrel and the baffle of the utility model.

[0023] Figure numbers: 1_mounting frame, 2_filter barrel, 201_inlet pipe, 3_outlet pipe, 4_ball valve, 5_positioning frame, 6_mixing barrel, 7_infusion tube, 8_infusion screw, 9_nozzle, 10_collecting barrel, 11_mounting shell, 12_fan, 13_heating tube, 14_dual-axis motor, 15_connecting rod, 16_mixing frame, 17_pulley set, 18_placing frame, 19_connecting frame, 20_fixing plate, 21_clamp rod, 22_elastic part, 23_baffle, 24_protective net, 25_protective shell. DETAILED DESCRIPTION

[0024] 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 of 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.

[0025] Example 1

[0026] See also Figure 1 , Figure 2 , Figure 3 and Figure 8, a chemical waste gas absorption and treatment device includes a mounting frame 1, a filter barrel 2 is arranged in the middle of the mounting frame 1, an air inlet pipe 201 and an air outlet pipe 3 are distributed and connected at the lower front side and the upper rear side of the filter barrel 2, the waste gas flows from bottom to top in the filter barrel 2, and a protective shell 25 is arranged on the air outlet pipe 3. After the gas treatment of this device is completed, the protective shell 25 is used to cover the air outlet pipe 3 to prevent foreign matter from entering. Six baffles 23 are arranged in the filter barrel 2, and the six baffles 23 are all provided with semicircular openings for the waste gas to pass through, and the semicircular openings on the two adjacent baffles 23 are staggered. The baffles 23 are used to increase the waste gas resistance and slow down the waste gas flow rate, so that the waste gas stays in the filter barrel 2 for a longer time and improves the reaction effect. A ball valve 4 is arranged on one end of the filter barrel 2 close to the air inlet pipe 201, and a mixing barrel 6 is installed on the left side of the filter barrel 2 through a positioning frame 5. Liquid materials can be poured into the mixing barrel 6 for mixing. The mixing barrel 6 and the filter barrel 2 are connected to a liquid infusion tube 7. A liquid infusion screw 8 is rotatably arranged in the liquid infusion tube 7. The liquid infusion screw 8 can be rotated to transport the absorption liquid upward. A nozzle 9 is arranged on the filter barrel 2 at one end close to the air outlet pipe 3. A liquid collecting barrel 10 with an inner cavity is arranged at the bottom of the filter barrel 2. The liquid collecting barrel 10 is used to recover waste liquid. The lower part of the liquid collecting barrel 10 is connected to two installation shells 11 which are symmetrically distributed front and back. A fan 12 and a heating pipe 13 are arranged in the installation shell 11. The heating pipe 13 is used to heat the air, and the fan 12 is used to draw hot air into the inner cavity of the liquid collecting barrel 10 to heat the waste liquid. The design of the inner cavity can gather hot gas, avoid hot gas diffusion, and improve the heating effect. A protective net 24 is arranged in the installation shell 11. The protective net 24 is used to prevent foreign matter from entering the installation shell 11.

[0027] The chemical waste gas enters the filter barrel 2 from the air inlet pipe 201, and at the same time, the infusion screw 8 is rotated to input the absorption liquid inside the mixing barrel 6 into the nozzle 9. The nozzle 9 sprays the absorption liquid into the filter barrel 2 to contact with the waste gas escaping from above. The absorption liquid absorbs pollutants such as harmful gases and particulate matter in the waste gas to achieve purification. The treated gas is discharged from the air outlet pipe 3, and the absorption liquid sprayed by the nozzle 9 falls to the bottom of the filter barrel 2 under the action of its own gravity. Then the ball valve 4 is opened, and the absorption liquid enters the liquid collecting barrel 10 for recovery. At this time, the fan 12 and the heating tube 13 are turned on to generate dry hot gas, and the dry hot gas heats the liquid collecting barrel 10 and the internal absorption liquid to vaporize and separate the harmful substances in the liquid, so that the liquid can be recovered and the liquid can be recycled conveniently.

[0028] Example 2

[0029] Based on Example 1, please refer to Figure 5A double-axis motor 14 is installed on the top of the mixing barrel 6, and the output shafts at both ends of the double-axis motor 14 are connected to connecting rods 15 through keys, wherein the bottom end of the connecting rod 15 penetrates into the mixing barrel 6, and a mixing rack 16 is provided on the surface, and the operation of the double-axis motor 14 can drive the mixing rack 16 to rotate to stir the materials, so that the materials are mixed evenly and the absorption effect of the absorption liquid is ensured. The top of the connecting rod 15 and the infusion screw 8 are jointly provided with a pulley group 17, and the infusion screw 8 can be automatically rotated by the transmission of the pulley group 17.

[0030] See also Figure 6 and Figure 7 A placement frame 18 is provided in the outlet pipe 3. The placement frame 18 can be used to place filter materials such as activated carbon. When the gas is discharged from the outlet pipe 3, the filter material is used to absorb the residual pollutants in the gas to achieve secondary purification and ensure the gas treatment effect. A connecting frame 19 is fixedly connected to the middle of the placement frame 18 by welding. Two fixed plates 20 symmetrically distributed on the left and right are fixedly connected to the outlet pipe 3. A clamping rod 21 is slidably provided on the fixed plate 20. The clamping rod 21 can clamp the connecting frame 19 to fix the placement frame 18. An elastic member 22 is sleeved on the clamping rod 21, and the two ends of the elastic member 22 are respectively connected to the clamping rod 21 and the fixed plate 20.

[0031] Although the present disclosure has been described with respect to only a limited number of embodiments, those skilled in the art having benefit of this disclosure will appreciate that various other embodiments may be designed without departing from the scope of the present invention. Therefore, the scope of the present invention should be limited only by the appended claims.

Claims

1. A chemical waste gas absorption treatment device, comprising a mounting frame (1), a filter barrel (2) being arranged on the mounting frame (1), the filter barrel (2) being connected with an air inlet pipe (201) and an air outlet pipe (3), a ball valve (4) being arranged on one end of the filter barrel (2) close to the air inlet pipe (201), a mixing barrel (6) being arranged on the filter barrel (2) via a positioning frame (5), materials for making absorption liquid can be poured into the mixing barrel (6) for mixing, the mixing barrel (6) and the filter barrel (2) being connected with a liquid infusion pipe (7), a liquid infusion screw (8) being rotatably arranged in the liquid infusion pipe (7), a nozzle (9) being arranged on one end of the filter barrel (2) close to the air outlet pipe (3), wherein the filter barrel (2) is characterized in that: The filter barrel (2) is provided with a liquid collecting barrel (10) with its own inner cavity, the liquid collecting barrel (10) is used to recover waste liquid, the liquid collecting barrel (10) is connected to a mounting shell (11), and a fan (12) and a heating pipe (13) are arranged in the mounting shell (11).

2. A chemical waste gas absorption and treatment device according to claim 1, characterized in that: A double-shaft motor (14) is installed on the mixing barrel (6), and the output shafts at both ends of the double-shaft motor (14) are connected to connecting rods (15), one end of the connecting rod (15) penetrates into the mixing barrel (6), and a mixing frame (16) is provided on the surface. The operation of the double-shaft motor (14) can drive the mixing frame (16) to rotate and stir the materials, and the other end of the connecting rod (15) and the infusion screw (8) are jointly provided with a pulley group (17), and the infusion screw (8) can be automatically rotated by the transmission of the pulley group (17).

3. The chemical waste gas absorption and treatment device according to claim 1 is characterized in that: A placement frame (18) is arranged inside the air outlet pipe (3), the placement frame (18) is used to place activated carbon, a connecting frame (19) is fixedly connected to the placement frame (18), a symmetrically distributed fixing plate (20) is fixedly connected to the air outlet pipe (3), a clamping rod (21) is slidably arranged on the fixing plate (20), the clamping rod (21) can clamp the connecting frame (19) to fix the placement frame (18), and an elastic member (22) is sleeved on the clamping rod (21).

4. The chemical waste gas absorption and treatment device according to claim 1 is characterized in that: A plurality of baffles (23) are arranged in the filter barrel (2), and a plurality of the baffles (23) are each provided with a semicircular opening for the exhaust gas to pass through, and the semicircular openings on two adjacent baffles (23) are staggered.

5. The chemical waste gas absorption and treatment device according to claim 1 is characterized in that: A protective net (24) is arranged inside the installation shell (11).

6. The chemical waste gas absorption and treatment device according to claim 1 is characterized in that: A protective shell (25) is provided on the air outlet pipe (3).

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