Spray type reaction tower for treating chemical waste gas

Abstract

The utility model relates to a spray type reaction tower for treating chemical waste gas, which comprises a tower body, a liquid tank filled with purification liquid and a circulating part, the circulating part is at least used for pumping the purification liquid in the liquid tank into the top side in the tower body and pumping the purification liquid flowing into the bottom side in the tower body into the liquid tank, one side of the outer wall of the tower body is fixedly connected with a gas inlet pipe, and the other side of the outer wall of the tower body is fixedly connected with a gas outlet pipe. An air outlet pipe is fixedly connected to one side of the top of the tower body, a circular filter screen plate is fixedly connected to the bottom side of the inner wall of the tower body, a rotating shaft is fixedly connected to the bottom side of the inner wall of the tower body in the vertical center axis direction of the filter screen plate, cleaning plates are arranged on the top side and the bottom side of the filter screen plate, and one end of each cleaning plate is fixedly connected with the rotating shaft. Impurities on the two sides of the filter screen can be continuously cleaned, the filter screen is prevented from being blocked, the filterability of the filter screen is kept, the filter screen can be cleaned without being taken out, and waste gas purification work is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction towers, in particular to a spray-type reaction tower for treating chemical waste gas. Background Art

[0002] During the production process of pharmaceuticals, chemicals, etc., a large amount of waste gas and dust will be generated. The waste gas is generally purified through a spray reaction tower.

[0003] The patent with application number CN202320267654.5 discloses a spray-type reaction tower for industrial waste gas treatment, including a lower part of a tower body, the upper end of the lower part of the tower body is fixedly connected to an installation box, the left and right sides of the interior of the installation box are fixedly connected to slide seats, the opposite sides of the two slide seats are slidably connected to sliders, and the opposite sides of the two sliders are fixedly connected to installation sleeves.

[0004] Although the above device can facilitate the quick disassembly and cleaning of the filter, when cleaning and replacing the filter, the filter needs to be taken out of the reaction tower for cleaning. During this period of time, the exhaust gas purification work needs to be stopped, which affects the exhaust gas purification efficiency. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a spray-type reaction tower for treating chemical waste gas. The specific technical scheme is as follows:

[0006] A spray reaction tower for treating chemical waste gas comprises a tower body, a liquid tank with purified liquid injected therein, and a circulation part, wherein the circulation part is at least used to pump the purified liquid in the liquid tank into the top side of the tower body and to pump the purified liquid flowing into the bottom side of the tower body into the liquid tank, an air inlet pipe is fixedly connected to one side of the outer wall of the tower body, an air outlet pipe is fixedly connected to one side of the top of the tower body, and also comprises a rotating assembly, a filter screen plate arranged in a circular shape is fixedly connected to the bottom side of the inner wall of the tower body, a rotating shaft is fixedly connected along the vertical center axis direction of the filter screen plate, cleaning plates are arranged on the top and bottom sides of the filter screen plate, one end of the cleaning plate is fixedly connected to the rotating shaft, cleaning brushes are fixedly connected to the opposite ends of the two cleaning plates, and the rotating assembly is at least used to drive the rotating shaft to rotate.

[0007] As an improvement of the above technical solution: the circulation part includes a first infusion component and a second infusion component, the first infusion group includes a first pump body fixedly installed on one side of the tower body, the input end of the first pump body is connected to the interior of the liquid tank through a pipeline, and the output end of the first pump body is fixedly connected to a liquid extraction tube, one end of the liquid extraction tube passes through the interior of the tower body.

[0008] As an improvement of the above technical solution: the second infusion assembly includes an annular liquid spray main pipe fixedly installed on the top side of the tower body, and a second pump body fixedly installed on one side of the liquid tank. The input end of the second pump body is connected to the interior of the liquid tank through a pipeline, and the output end of the liquid tank is connected to the annular liquid spray main pipe through a pipeline, and a plurality of liquid spray branches are fixedly installed at the bottom of the annular liquid spray main pipe.

[0009] As an improvement of the above technical solution: it also includes a blocking component, which includes a blocking shell fixedly connected to one side of the filter mesh plate, the top end surface of the blocking shell is flush with the top end surface of the filter mesh plate, the bottom end surface of the blocking shell is flush with the bottom end surface of the filter mesh plate, the top and bottom ends of the blocking shell are both provided with cleaning rod openings, an electric telescopic rod is fixedly installed on one side of the inner wall of the blocking shell, and the output rod of the electric telescopic rod is fixedly connected to a blocking block.

[0010] As an improvement of the above technical solution: a discharge pipe is fixedly installed on one side of the bottom of the tower body, and a valve is fixedly installed on the surface of the discharge pipe.

[0011] As an improvement of the above technical solution: a demisting chamber is fixed on the top side of the inner wall of the tower body, a demisting device is installed in the demisting chamber, and a filter cotton layer is arranged between the annular liquid spray main pipe and the demisting chamber.

[0012] As an improvement of the above technical solution: the rotating assembly includes a driving motor fixedly mounted in the middle of the top of the tower body, and the top end of the rotating shaft penetrates to the top of the tower body and is fixedly connected to the output shaft of the driving motor.

[0013] As an improvement of the above technical solution: a heating pipe fixedly connected to the inner side of the tower body is arranged between the annular liquid spray main pipe and the filter screen plate, both ends of the heating pipe are connected to the outside of the tower body through connecting pipes, and a plurality of stirring rods are fixedly connected to the surface of the rotating shaft.

[0014] Beneficial effects of the utility model:

[0015] When purifying the exhaust gas, by driving the driving motor to drive the shaft to rotate, the cleaning brush can be driven synchronously to clean both sides of the filter screen. Impurities on both sides of the filter screen can be continuously cleaned to avoid clogging of the filter screen, thereby maintaining the filterability of the filter screen. The filter screen can be cleaned without taking it out, and the exhaust gas purification work will not be affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0018] Figure 3 It is a side cross-sectional structural schematic diagram of the filter screen plate in the utility model;

[0019] Figure 4 It is a schematic diagram of the top view structure of the filter screen plate in the utility model.

[0020] Figure numerals: 1, tower body; 10, air inlet pipe; 11, discharge pipe; 12, air outlet pipe; 2, filter screen; 21, plugging shell; 210, cleaning rod mouth; 211, electric telescopic rod; 212, blocking block; 3, heating tube; 4, driving motor; 41, rotating shaft; 411, stirring rod; 42, cleaning plate; 43, cleaning brush; 5, filter cotton layer; 6, demisting chamber; 7, annular spray main pipe; 71, spray branch pipe; 8, liquid tank; 81, first pump body; 82, liquid extraction pipe; 83, second pump body. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] Example

[0023] For spray reactors for treating chemical waste gas, please refer to Figure 1-Figure 4 The spray reaction tower for treating chemical waste gas comprises a tower body 1, a liquid tank 8 with a purification liquid injected therein, and a circulation part, wherein the circulation part is at least used to pump the purification liquid in the liquid tank 8 into the top side of the tower body 1 and to pump the purification liquid flowing into the bottom side of the tower body 1 into the liquid tank 8. An air inlet pipe 10 is fixedly connected to one side of the outer wall of the tower body 1, and an air outlet pipe 12 is fixedly connected to one side of the top of the tower body 1. The purification liquid is a purification liquid for purifying chemical waste gas in the prior art. This application will not go into details. It also comprises a rotating assembly, a tower body 1 is fixedly connected to a filter screen plate 2 arranged in a circular shape on the bottom side of the inner wall, a rotating shaft 41 is fixedly connected to the filter screen plate 2 along the vertical center axis direction, a cleaning plate 42 is arranged on the top and bottom sides of the filter screen plate 2, one end of the cleaning plate 42 is fixedly connected to the rotating shaft 41, and a cleaning brush 43 is fixedly connected to the opposite ends of the two cleaning plates 42, and one side of the cleaning brush 43 is in close contact with the filter screen plate 2, and the rotating assembly is at least used to drive the rotating shaft 41 to rotate. Specifically, the air inlet pipe 10 is located above the filter screen plate 2.

[0024] In an optional embodiment: the circulation part includes a first infusion component and a second infusion component, the first infusion group includes a first pump body 81 fixedly installed on one side of the tower body 1, the input end of the first pump body 81 is connected to the interior of the liquid tank 8 through a pipeline, and the output end of the first pump body 81 is fixedly connected with a liquid extraction tube 82, one end of the liquid extraction tube 82 passes through the interior of the tower body 1. Specifically, the liquid extraction tube 82 is fixedly connected with a filter at one end away from the first pump body 81, and the filter is used to prevent impurities inside the tower body 1 from entering the interior of the liquid tank 8 through the liquid extraction tube 82.

[0025] In an optional embodiment: the second infusion assembly includes an annular liquid spray main pipe 7 fixedly installed on the top side of the tower body 1, and a second pump body 83 fixedly installed on one side of the liquid tank 8. The input end of the second pump body 83 is connected to the interior of the liquid tank 8 through a pipeline, and the output end of the liquid tank 8 is connected to the annular liquid spray main pipe 7 through a pipeline. A plurality of liquid spray branch pipes 71 are fixedly installed at the bottom of the annular liquid spray main pipe 7.

[0026] In an optional embodiment: it also includes a blocking component, the blocking component includes a blocking shell 21 fixedly connected to one side of the filter screen plate 2, the blocking shell 21 is arranged in a radial direction of the filter screen plate 2, the top end surface of the blocking shell 21 is flush with the top end surface of the filter screen plate 2, the bottom end surface of the blocking shell 21 is flush with the bottom end surface of the filter screen plate 2, the top and bottom ends of the blocking shell 21 are provided with a cleaning rod opening 210, the cleaning rod opening 210 passes through the interior of the blocking shell 21, an electric telescopic rod 211 is fixedly installed on one side of the inner wall of the blocking shell 21, the output rod of the electric telescopic rod 211 is fixedly connected with a blocking block 212, the top end of the blocking block 212 is in contact with the inner top end of the blocking shell 21, and the bottom end of the blocking block 212 is in contact with the inner bottom end of the blocking shell 21, so that the cleaning rod opening 210 can be blocked.

[0027] In an optional embodiment: a discharge pipe 11 is fixedly installed on one side of the bottom of the tower body 1 , and a valve is fixedly installed on the surface of the discharge pipe 11 .

[0028] In an optional embodiment: a defogger chamber 6 is fixed to the top side of the inner wall of the tower body 1, and a defogger is installed in the defogger chamber 6. The defogger is a defogger device for defogging exhaust gas according to the prior art. The air outlet end of the defogger chamber 6 is connected to the air outlet pipe 12, and the air inlet end is connected to the top groove inside the tower body 1. A filter cotton layer 5 is provided between the annular liquid spray main pipe 7 and the defogger chamber 6, and moisture and small particles in the exhaust gas can be absorbed through the filter cotton layer 5.

[0029] In an optional embodiment: the rotating assembly includes a driving motor 4 fixedly mounted in the middle of the top of the tower body 1 , and the top end of the rotating shaft 41 penetrates to the top of the tower body 1 and is fixedly connected to the output shaft of the driving motor 4 .

[0030] In an optional embodiment: a heating tube 3 fixedly connected to the inner side of the tower body 1 is provided between the annular liquid spray main pipe 7 and the filter screen plate 2, both ends of the heating tube 3 are connected to the outside of the tower body 1 through connecting tubes, and a plurality of stirring rods 411 are fixedly connected to the surface of the rotating shaft 41. Specifically, by stirring the exhaust gas and the purified liquid with the stirring rods 411 and introducing hot steam through the heating tube 3, the reaction efficiency of the purified liquid and the heating tube 3 can be accelerated.

[0031] Specifically, when purifying the waste gas, by driving the driving motor 4 to drive the rotating shaft 41 to rotate, the cleaning brush 43 can be synchronously driven to clean the two sides of the filter screen 2, and the impurities on both sides of the filter screen can be continuously cleaned to avoid clogging the filter screen, maintain the filterability of the filter screen, and clean the filter screen without taking it out, which does not affect the purification of the waste gas. After a period of time, the block 212 is moved by the electric telescopic rod 211, so that the block 212 no longer blocks the cleaning rod opening 210, allowing the impurities on the top of the filter screen plate 2 to fall from the cleaning rod opening 210 to the bottom of the filter screen plate 2, and the impurities can be cleaned out of the tower body 1 by opening the valve on the discharge pipe 11.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A spray reaction tower for treating chemical waste gas, comprising a tower body (1), a liquid tank (8) with a purification liquid injected therein, and a circulation unit, wherein the circulation unit is at least used to pump the purification liquid in the liquid tank (8) into the top side of the tower body (1) and to pump the purification liquid flowing into the bottom side of the tower body (1) into the liquid tank (8), an air inlet pipe (10) is fixedly connected to one side of the outer wall of the tower body (1), and an air outlet pipe (12) is fixedly connected to one side of the top of the tower body (1), characterized in that: It also comprises a rotating assembly, wherein a filter screen plate (2) arranged in a circular shape is fixedly connected to the bottom side of the inner wall of the tower body (1), a rotating shaft (41) is fixedly connected along the vertical center axis direction of the filter screen plate (2), a cleaning plate (42) is arranged on the top and bottom sides of the filter screen plate (2), one end of the cleaning plate (42) is fixedly connected to the rotating shaft (41), and cleaning brushes (43) are fixedly connected to the opposite ends of the two cleaning plates (42), and the rotating assembly is at least used to drive the rotating shaft (41) to rotate.

2. The spray-type reaction tower for treating chemical waste gas according to claim 1, characterized in that: The circulation unit comprises a first infusion assembly and a second infusion assembly, wherein the first infusion assembly comprises a first pump body (81) fixedly mounted on one side of the tower body (1), wherein an input end of the first pump body (81) is connected to the interior of a liquid tank (8) via a pipeline, and an output end of the first pump body (81) is fixedly connected to a liquid extraction tube (82), wherein one end of the liquid extraction tube (82) penetrates into the interior of the tower body (1).

3. The spray-type reaction tower for treating chemical waste gas according to claim 2, characterized in that: The second liquid infusion assembly comprises an annular liquid spraying main pipe (7) fixedly mounted on the top side of the tower body (1), and a second pump body (83) fixedly mounted on one side of the liquid tank (8); the input end of the second pump body (83) is connected to the inside of the liquid tank (8) through a pipeline, and the output end of the liquid tank (8) is connected to the annular liquid spraying main pipe (7) through a pipeline; and a plurality of liquid spraying branch pipes (71) are fixedly mounted at the bottom of the annular liquid spraying main pipe (7).

4. The spray-type reaction tower for treating chemical waste gas according to claim 3, characterized in that: The invention also comprises a blocking component, wherein the blocking component comprises a blocking shell (21) fixedly connected to one side of the filter screen plate (2), the top end surface of the blocking shell (21) is flush with the top end surface of the filter screen plate (2), the bottom end surface of the blocking shell (21) is flush with the bottom end surface of the filter screen plate (2), the top and bottom ends of the blocking shell (21) are both provided with a cleaning rod opening (210), an electric telescopic rod (211) is fixedly mounted on one side of the inner wall of the blocking shell (21), and the output rod of the electric telescopic rod (211) is fixedly connected to a blocking block (212).

5. The spray-type reaction tower for treating chemical waste gas according to claim 4, characterized in that: A discharge pipe (11) is fixedly mounted on one side of the bottom of the tower body (1), and a valve is fixedly mounted on the surface of the discharge pipe (11).

6. The spray-type reaction tower for treating chemical waste gas according to claim 5, characterized in that: A demisting chamber (6) is fixed on the top side of the inner wall of the tower body (1), a demisting device is installed in the demisting chamber (6), and a filter cotton layer (5) is arranged between the annular liquid spray main pipe (7) and the demisting chamber (6).

7. The spray-type reaction tower for treating chemical waste gas according to claim 6, characterized in that: The rotating assembly comprises a driving motor (4) fixedly mounted in the middle of the top of the tower body (1); the top end of the rotating shaft (41) penetrates the top of the tower body (1) and is fixedly connected to the output shaft of the driving motor (4); and a plurality of stirring rods (411) are fixedly connected to the surface of the rotating shaft (41).

8. The spray-type reaction tower for treating chemical waste gas according to claim 7, characterized in that: A heating pipe (3) fixedly connected to the inner side of the tower body (1) is provided between the annular liquid spray main pipe (7) and the filter screen plate (2), and both ends of the heating pipe (3) are connected to the outside of the tower body (1) through connecting pipes.

Images