Spraying type reaction tower for waste gas treatment

Abstract

The invention discloses a spray type reaction tower for waste gas treatment, which comprises a reaction tower body, a water return tank, a reaction structure and a spray structure are sequentially arranged in the reaction tower body from bottom to top, the front bottom of the reaction tower body is provided with a gas inlet, and the top of the reaction tower body is provided with an exhaust pipe; the reaction structure comprises a filler adding bin, a driving motor and a driving shaft, a partition plate is arranged on the upper portion in the reaction tower body, the upper end of the driving shaft is rotationally arranged at the bottom of the partition plate, the filler adding bin is arranged in the reaction tower body, and the lower end of the driving shaft penetrates through the filler adding bin and extends to the lower portion; a stirring rod is arranged at the end, located in the filler adding bin, of the driving shaft and used for fully stirring filler in the filler adding bin. The invention relates to the technical field of environmental protection equipment, and particularly provides a spray type reaction tower for waste gas treatment.

Description

Technical Field

[0001] The invention relates to the technical field of environmental protection equipment, in particular to a spray-type reaction tower for waste gas treatment. Background Art

[0002] A large amount of waste gas will be generated during the industrial development process. The waste gas contains dust particles, flue gas, odorous gases, toxic and harmful gases, etc., which seriously affect and destroy the living environment of humans and organisms. In order to reduce pollution and achieve green, energy-saving and environmentally friendly production, it is necessary to purify and treat industrial waste gas.

[0003] Existing waste gas treatment methods are divided into (1) physical treatment methods: such as bag filters, electrostatic precipitators, cyclone dust collectors, wet dust collectors, etc.; (2) chemical treatment methods: such as using chemical principles in spray towers to neutralize or decompose harmful substances; (3) biological treatment methods: using microorganisms to convert harmful substances into harmless substances; in addition, it also includes methods such as ultraviolet decomposition.

[0004] Most of the existing industrial treatment methods use a reaction tower for spray treatment, that is, the exhaust gas enters the reaction tower, and the liquid medicine is sprayed and atomized into droplets to fully contact with the exhaust gas to absorb, neutralize or decompose harmful substances. However, if the gas circulation speed is too fast and the exhaust gas stays in the reaction tower for a short time, it will cause insufficient reaction with the liquid medicine, affecting the treatment quality. If the treatment speed is slow, the exhaust gas treatment efficiency will be affected. The filler is not convenient to clean and maintain during use, and long-term use will also affect the sufficient reaction between the exhaust gas and the liquid medicine. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: The present solution provides a spray-type reaction tower for waste gas treatment, comprising a reaction tower body, wherein a return water tank, a reaction structure and a spray structure are sequentially arranged in the reaction tower body from bottom to top, an air inlet is arranged at the front bottom of the reaction tower body, and an exhaust pipe is arranged at the top of the reaction tower body; the reaction structure comprises a filler adding bin, a drive motor and a drive shaft, a partition plate is arranged at the upper part of the interior of the reaction tower body, the upper end of the drive shaft is rotatably arranged at the bottom of the partition plate, the filler adding bin is arranged in the reaction tower body, the lower end of the drive shaft passes through the filler adding bin and extends to the bottom, the drive shaft is provided with a stirring rod at one end in the filler adding bin, which is used to fully stir the filler in the filler adding bin to promote full reaction between the waste gas and the spray liquid, and the bottom wall of the filler adding bin is hollowed out.

[0006] Preferred technical solution 1: The inner bottom wall of the filler adding bin is arranged as an inclined structure, the top of the filler adding bin is provided with an air outlet, and a sealing plate is provided on the driving shaft. The sealing plate and the air outlet are intermittently sealed and opened to extend the time of the exhaust gas in the filler adding bin.

[0007] Preferred technical solution two: The spray structure includes a liquid pump, a top spray head and a side spray head. The liquid pump is arranged on the outer rear wall of the reaction tower body, the top spray head is evenly installed at the bottom of the partition plate, and the side spray heads are evenly arranged on the inner side wall of the filler adding bin. The liquid pump is connected to the return water tank through water pipe 1, and the liquid pump is connected to the top spray head and the side spray head through water pipe 2.

[0008] Preferred technical solution three: a waste residue storage bin is provided at the bottom of the return water tank, the interior of the drive shaft is hollow and the bottom is connected to the waste residue storage bin, a residue discharge port is provided on the drive shaft, and the residue generated by the filler during the stirring process can be discharged through the residue discharge port and sent into the waste residue storage bin through the drive shaft, so as to facilitate the cleaning of the filler residue and dirt.

[0009] Preferred technical solution four: also includes a pretreatment chamber and a heating net and an interception net installed in the pretreatment chamber, the pretreatment chamber is a tubular structure, and one end of the pretreatment chamber is connected to the air inlet by bolts.

[0010] Preferred technical solution five: One end of the exhaust pipe passes through the partition plate and extends to the interior of the reaction tower body. A gas detector is also provided on the partition plate. The detection end of the gas detector extends to the interior of the exhaust pipe to detect the exhaust gas. The exhaust pipe is connected to the lower part of the interior of the reaction tower body through a return air pipe. Solenoid valves are provided on the return air pipe and the exhaust pipe.

[0011] Preferred technical solution six: A controller is provided on the reaction tower body, and the drive motor, gas detector, liquid pump and solenoid valve are all electrically connected to the controller.

[0012] Preferred technical solution seven: An inspection door is also hingedly provided on the top of the reaction tower body.

[0013] The invention proposes a spray-type reaction tower for waste gas treatment, which has the following beneficial effects by adopting the above structure:

[0014] (1) The filler adding bin, driving motor and driving shaft are used to stir the filler, so as to promote full contact between the liquid medicine and the waste gas. At the same time, the dirt and impurities are discharged into the waste slag storage bin through the slag discharge port. The sealing plate and the gas outlet are intermittently sealed and opened to extend the time of the waste gas in the filler adding bin;

[0015] (2) The treated gas is inspected by a gas detector. The gas that meets the emission requirements is discharged through the exhaust pipe, and the gas that does not meet the emission requirements is recycled through the return air pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 The overall structure of a spray-type reaction tower for waste gas treatment proposed by the present invention is shown in FIG. Figure 1 ;

[0018] Figure 2 The overall structure of a spray-type reaction tower for waste gas treatment proposed by the present invention is shown in FIG. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the internal structure of a spray-type reaction tower for waste gas treatment proposed by the present invention;

[0020] Figure 4 A schematic diagram of the reaction structure of a spray-type reaction tower for waste gas treatment proposed by the present invention;

[0021] Figure 5 This is a schematic diagram of the internal structure of a pretreatment chamber of a spray-type reaction tower for waste gas treatment proposed by the present invention.

[0022] Among them, 1. reaction tower body, 2. return water tank, 3. reaction structure, 4. air inlet, 5. exhaust pipe, 6. filler adding bin, 7. drive motor, 8. drive shaft, 9. partition plate, 10. stirring rod, 11. air outlet, 12. sealing plate, 13. liquid pump, 14. top spray head, 15. side spray head, 16. waste residue collection bin, 17. slag discharge port, 18. pretreatment bin, 19. heating net, 20. interception net, 21. return air pipe, 22. controller, 23. maintenance door. DETAILED DESCRIPTION

[0023] The technical invention in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0025] Embodiment 1

[0026] like Figures 1 to 4As shown, the technical invention adopted by the present invention is as follows: a spray-type reaction tower for waste gas treatment, comprising a reaction tower body 1, in which a return water tank 2, a reaction structure 3 and a spray structure are arranged in sequence from bottom to top, an air inlet 4 is arranged at the front bottom of the reaction tower body 1, and an exhaust pipe 5 is arranged at the top of the reaction tower body 1; the reaction structure 3 comprises a filler adding bin 6, a drive motor 7 and a drive shaft 8, a partition plate 9 is arranged above the interior of the reaction tower body 1, and the upper end of the drive shaft 8 is rotatably arranged at the bottom of the partition plate 9, the filler adding bin 6 is arranged in the reaction tower body 1, and the lower end of the drive shaft 8 penetrates the filler adding bin 6 and extends to the bottom, and the drive shaft 8 is located in the filler adding bin 6. One end is provided with a stirring rod 10 for fully stirring the filler inside the filler adding bin 6, In order to promote the full reaction between the exhaust gas and the spray liquid, the bottom wall of the filler adding bin 6 is hollowed out; the inner bottom wall of the filler adding bin 6 is inclined, the top of the filler adding bin 6 is provided with an air outlet 11, and the driving shaft 8 is provided with a sealing plate 12, which is intermittently sealed and opened with the air outlet 11 by the sealing plate 12 to extend the time of the exhaust gas in the filler adding bin 6; the spray structure includes a liquid pump 13, a top spray head 14 and a side spray head 15, the liquid pump 13 is arranged on the outer rear wall of the reaction tower body 1, the top spray head 14 is evenly installed at the bottom of the partition plate 9, and the side spray heads 15 are evenly arranged on the inner side wall of the filler adding bin 6, the liquid pump 13 is connected to the return water tank 2 by a water pipe 1, and the liquid pump 13 is connected to the top spray head 14 and the side spray head 15 by a water pipe 2.

[0027] Embodiment 2

[0028] Based on the first embodiment, Figures 3 to 5 As shown, a waste residue storage bin 16 is provided at the bottom of the return water tank 2, the driving shaft 8 is hollow inside and the bottom is connected to the waste residue storage bin 16, and a slag discharge port 17 is provided on the driving shaft 8. The slag generated by the filler during the stirring process can be discharged through the slag discharge port 17 and sent to the waste residue storage bin 16 through the driving shaft 8, so as to facilitate the cleaning of the filler slag and dirt;

[0029] It also includes a pre-treatment chamber 18 and a heating net 19 and an intercepting net 20 installed in the pre-treatment chamber 18. The pre-treatment chamber 18 is a tubular structure, and one end of the pre-treatment chamber 18 is connected to the air inlet 4 by bolts.

[0030] One end of the exhaust pipe 5 passes through the partition plate 9 and extends to the interior of the reaction tower body 1. A gas detector is also provided on the partition plate 9. The detection end of the gas detector extends to the interior of the exhaust pipe 5 to detect the exhaust gas. The exhaust pipe 5 is connected to the lower part of the interior of the reaction tower body 1 through a return air pipe 21. Solenoid valves are provided on the return air pipe 21 and the exhaust pipe 5. An inspection door 23 is also hinged on the top of the reaction tower body 1.

[0031] The reaction tower body 1 is provided with a controller 22 , and the driving motor 7 , the gas detector, the liquid pump 13 and the solenoid valve are all electrically connected to the controller 22 .

[0032] During specific use, the pretreatment bin 18 is connected to the air inlet 4 by bolts, and the incoming waste is intercepted and processed by the interception net 20 and the heating net 19, and enters the reaction tower body 1, and the liquid medicine is pumped by the liquid pump 13, and the filler and the exhaust gas are sprayed by the top spray head 14 and the side spray head 15 to increase the contact area between the liquid medicine and the exhaust gas. The gas is discharged through the exhaust pipe 5, and the gas is detected by the gas detector at the same time. If it does not meet the emission standards, the solenoid valve on the exhaust pipe 5 is closed, and the solenoid valve of the return air pipe 21 is opened for circulation treatment. At the same time, the drive motor 7 is started to drive the drive shaft 8 to rotate, thereby driving the sealing plate 12 to intermittently seal and open the air outlet 11 to extend the time of the exhaust gas in the filler addition bin 6. At the same time, the filler inside the filler addition bin 6 is fully stirred by the stirring rod 10 to promote the full reaction of the exhaust gas and the spray liquid. The slag generated by the filler during the stirring process can be discharged through the slag discharge port 17 and sent to the waste slag storage bin 16 through the drive shaft 8, which is convenient for cleaning the filler slag and dirt.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, material or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, material or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spray-type reaction tower for waste gas treatment, characterized in that: It includes a reaction tower body, in which a return water tank, a reaction structure and a spray structure are arranged in sequence from bottom to top, an air inlet is arranged at the front bottom of the reaction tower body, and an exhaust pipe is arranged at the top of the reaction tower body; the reaction structure includes a filler adding bin, a drive motor and a drive shaft, a partition plate is arranged above the interior of the reaction tower body, the upper end of the drive shaft is rotatably arranged at the bottom of the partition plate, the filler adding bin is arranged in the reaction tower body, the lower end of the drive shaft passes through the filler adding bin and extends to the bottom, a stirring rod is arranged at one end of the drive shaft located in the filler adding bin, and the bottom wall of the filler adding bin is hollowed out.

2. A spray-type reaction tower for waste gas treatment according to claim 1, characterized in that: The inner bottom wall of the filler adding bin is arranged in an inclined structure, the top of the filler adding bin is provided with an air outlet, and the driving shaft is provided with a sealing plate.

3. A spray-type reaction tower for waste gas treatment according to claim 2, characterized in that: The spray structure includes a liquid pump, a top spray head and a side spray head. The liquid pump is arranged on the outer rear wall of the reaction tower body, the top spray head is evenly installed at the bottom of the partition plate, and the side spray heads are evenly arranged on the inner side wall of the filler adding bin. The liquid pump is connected to the return water tank through a water pipe 1, and the liquid pump is connected to the top spray head and the side spray head through a water pipe 2.

4. A spray-type reaction tower for waste gas treatment according to claim 3, characterized in that: A waste slag storage bin is provided at the bottom of the return water tank, the interior of the drive shaft is hollow and the bottom is connected to the waste slag storage bin, and a slag discharge port is provided on the drive shaft.

5. A spray-type reaction tower for waste gas treatment according to claim 4, characterized in that: It also includes a pre-treatment chamber and a heating net and an interception net installed in the pre-treatment chamber. The pre-treatment chamber is a tubular structure, and one end of the pre-treatment chamber is connected to the air inlet by bolts.

6. A spray-type reaction tower for waste gas treatment according to claim 5, characterized in that: One end of the exhaust pipe passes through the partition plate and extends to the interior of the reaction tower body. A gas detector is also provided on the partition plate. The detection end of the gas detector extends to the interior of the exhaust pipe. The exhaust pipe is connected to the lower part of the interior of the reaction tower body through a return air pipe. Solenoid valves are provided on the return air pipe and the exhaust pipe.

7. A spray-type reaction tower for waste gas treatment according to claim 6, characterized in that: The reaction tower body is provided with a controller, and the driving motor, gas detector, liquid pump and solenoid valve are all electrically connected to the controller.

8. A spray-type reaction tower for waste gas treatment according to claim 7, characterized in that: The top of the reaction tower body is also hingedly provided with an inspection door.

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