Industrial waste gas purification unit

Abstract

The utility model relates to an industrial waste gas purification unit, which belongs to the field of waste gas purification and comprises a purification tank, a separation mechanism for solid-gas separation of industrial waste gas is arranged on the inner bottom wall of the purification tank, and a purifier for gas-phase purification of the industrial waste gas is arranged on the right side of the purification tank. According to the industrial waste gas purification unit, the separation mechanism is arranged, solid particles in industrial waste gas are effectively separated through settling liquid in the settling box, abrasion and blockage of follow-up purification equipment are reduced, the settling box serves as a first contact point where the waste gas enters a purification system, the waste gas is pretreated, and a foundation is laid for follow-up purification steps; after the solid particles are separated, the load of a follow-up purification mechanism can be remarkably reduced, the efficiency of the whole purification system is improved, as the solid particles are separated firstly, pollution to filter materials such as activated carbon is reduced, the service life of the filter materials is prolonged, the maintenance cost is reduced, and the separation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas purification, in particular to an industrial waste gas purification unit. Background Art

[0002] Industrial waste gas purification units are equipment used to treat and purify waste gas generated in industrial production processes. These waste gases may contain a variety of harmful substances, such as volatile organic compounds (VOCs), dust, oil smoke, oil mist, etc. These substances are harmful to the environment and human health. Industrial waste gas purification units use different technologies to remove or transform these pollutants to meet environmental protection standards and reduce the impact on the environment.

[0003] As disclosed in Chinese patent announcement number (CN206965480U), an industrial oil fume waste gas purification unit includes a purification unit body, a filter purification chamber and a power chamber are arranged in the purification unit body, the filter purification chamber is located on one side of the power chamber, an air inlet is arranged at a position corresponding to the filter purification chamber on the side of the purification unit body, an air outlet is arranged at a position corresponding to the power chamber on the top of the purification unit body, a primary filter, a medium efficiency bag filter, an activated carbon gas filter, an activated alumina filter and a high efficiency filter are arranged in the filter purification chamber, and the utility model adopts a combination design of seven filter purification structures including a primary filter, a medium efficiency bag filter, an activated carbon gas filter, an activated alumina filter, a high efficiency filter, a photohydrogen ion purifier and a UV-D purification, so that the device can filter and purify most of the harmful exhaust gas, thereby discharging clean air into the room for recycling, thereby ensuring the safety and comfort of the workers' working environment.

[0004] However, as mentioned in the above patent, there is still a problem of poor mixed purification treatment effect for industrial waste gas. Industrial waste gas is generally a mixed substance containing dust, oil smoke, oil mist and other different characteristics. In the prior art, seven filtering and purification structures are used to perform physical filtration by relying on different gaps. This method has a good solid filtration effect on industrial waste gas, but a general purification effect on gaseous pollutants in the waste gas, which affects the final purification effect of the industrial waste gas. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an industrial waste gas purification unit having the advantages of good mixed purification treatment effect, etc., solving the problem of poor mixed purification treatment effect for industrial waste gas in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an industrial waste gas purification unit, comprising a purification tank, the inner bottom wall of the purification tank is provided with a separation mechanism for solid-gas separation of industrial waste gas, and the right side of the purification tank is provided with a purification mechanism for gas-phase purification of industrial waste gas;

[0007] The separation mechanism includes a sedimentation box, a first air pump, an air supply pipe, a bracket and a filter element. The sedimentation box is fixed to the inner bottom wall of the purification tank, the first air pump is fixed to the left side of the purification tank, one end of the air supply pipe is connected to the air outlet end of the first air pump, and the other end of the air supply pipe passes through and extends to the inner bottom wall of the sedimentation box, the bracket is horizontally fixed between the front and rear inner walls of the purification tank, and the filter element is arranged on the upper surface of the bracket to perform secondary filtration on the waste gas after sedimentation;

[0008] The filter element includes a filter box, which is fixed to the upper surface of the bracket. The inner wall of the filter box is provided with a filter screen, a first filter layer and a second filter layer from bottom to top. The lower surface of the filter box is connected to an air inlet pipe connected to the inner top wall of the sedimentation box.

[0009] Furthermore, a controller is fixed on the front of the purification tank, and the air inlet end of the first air pump is connected to an exhaust gas inlet pipe.

[0010] Furthermore, the interior of the sedimentation tank is filled with sedimentation liquid, the left side of the sedimentation tank is connected to a water pipe that runs through the outside of the purification tank, and a control valve is provided on the outside of the water pipe.

[0011] Furthermore, the first filter layer is an activated carbon layer, and the second filter layer is a composite fiber filter material layer.

[0012] Furthermore, the purification mechanism includes a second air pump fixed on the right side of the purification tank, the air inlet end of the second air pump is connected to an exhaust pipe connected to the filter box, a combustion chamber is provided on the right side of the purification tank, the inner wall of the combustion chamber is connected to a connecting pipe connected to the air outlet end of the second air pump, the bottom end of the connecting pipe is connected to an air outlet pipe, an igniter is fixed to the right inner wall of the combustion chamber, a fuel supply pipe is provided on the back wall of the inner cavity of the combustion chamber, and a catalytic component is provided on the upper surface of the combustion chamber.

[0013] Furthermore, the catalytic component includes a catalytic box arranged on the upper surface of the combustion chamber, a catalyst tube is fixed between the left and right inner walls of the catalytic box, a plurality of UV lamp tubes are provided on the inner wall of the catalytic box and on the outside of the catalyst tube, a third air pump is fixed on the right side of the purification tank, an air inlet end of the third air pump is connected to an air intake pipe connected to the inner wall of the combustion chamber, and an air outlet end of the third air pump is connected to an air guide pipe connected to the catalytic box.

[0014] Furthermore, the right side of the catalyst box is connected to an exhaust pipe, the outer side of the exhaust pipe is provided with a plurality of exhaust holes, the front side of the combustion chamber is provided with a cleaning port, and the inner wall of the cleaning port is slidably connected with a waste frame.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] 1. The industrial waste gas purification unit is equipped with a separation mechanism, which can effectively separate solid particles in industrial waste gas through the sedimentation liquid in the sedimentation tank, thereby reducing the wear and blockage of subsequent purification equipment. The sedimentation tank is the first contact point for waste gas to enter the purification system, and pre-treats the waste gas to lay the foundation for subsequent purification steps. After separating the solid particles, the load of subsequent purification mechanisms can be significantly reduced, and the efficiency of the entire purification system can be improved. Since the solid particles are separated first, the pollution of filter materials such as activated carbon is reduced, the service life of the filter material is extended, the maintenance cost is reduced, and it is beneficial to improve the separation efficiency.

[0017] 2. The industrial waste gas purification unit is equipped with a purification mechanism. Through the filtration of the activated carbon layer and the composite fiber filter material layer, harmful substances in the waste gas are further removed to achieve a higher purification standard. The high-temperature combustion in the combustion chamber can decompose or transform harmful components in the waste gas. The catalyst tube and UV lamp in the catalytic element work together to catalytically transform the gas after combustion, further improving the purification efficiency. Through the combustion and catalytic process, harmful gases are converted into harmless or low-toxic substances, reducing secondary pollution to the environment. The purified gas is safely discharged through the exhaust pipe. The design of the air outlet ensures the uniform dispersion of the gas and reduces the impact on the surrounding environment. Through the coordinated work of the separation mechanism and the purification mechanism, the industrial waste gas purification unit can efficiently and safely treat industrial waste gas, reduce pollution to the environment, and at the same time ensure the stable operation of the equipment and the convenience of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the separation mechanism of the utility model;

[0020] Figure 3 It is a schematic diagram of the purification mechanism of the utility model.

[0021] In the figure: 1 purification tank, 2 separation mechanism, 21 sedimentation box, 22 first air pump, 23 air supply pipe, 24 bracket, 25 filter element, 251 filter box, 252 filter screen, 253 first filter layer, 254 second filter layer, 255 air inlet pipe, 26 water pipe, 3 purification mechanism, 31 second air pump, 32 exhaust pipe, 33 combustion chamber, 34 connecting pipe, 35 exhaust pipe, 36 igniter, 37 fuel supply pipe, 38 catalytic element, 381 catalytic box, 382 catalyst tube, 383 UV lamp, 384 third air pump, 385 suction pipe, 386 air guide pipe, 39 waste frame. DETAILED DESCRIPTION

[0022] 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 in 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.

[0023] See also Figure 1-3 An industrial waste gas purification unit in this embodiment includes a purification tank 1, the inner bottom wall of the purification tank 1 is provided with a separation mechanism 2 for solid-gas separation of the industrial waste gas, and the right side of the purification tank 1 is provided with a purification mechanism 3 for gas-phase purification of the industrial waste gas.

[0024] See also Figure 2 In order to improve the gas-solid separation and filtration of industrial waste gas, the separation mechanism 2 in this embodiment includes a sedimentation box 21, a first air pump 22, an air supply pipe 23, a bracket 24 and a filter 25. The sedimentation box 21 is fixed to the inner bottom wall of the purification tank 1, and the first air pump 22 is fixed to the left side of the purification tank 1. One end of the air supply pipe 23 is connected to the air outlet end of the first air pump 22, and the other end of the air supply pipe 23 passes through and extends to the inner bottom wall of the sedimentation box 21. The first air pump 22 is located on the left side of the purification tank 1, and the industrial waste gas is guided through the waste gas inlet pipe and pumped into the sedimentation box 21 through the air supply pipe 23. The bracket 24 is horizontally fixed between the front and rear inner walls of the purification tank 1, and the filter 25 is arranged on the upper surface of the bracket 24 to perform secondary filtration on the waste gas after sedimentation.

[0025] The filter element 25 includes a filter box 251, which is fixed to the upper surface of the bracket 24. The bracket 24 is fixed between the front and rear inner walls of the purification tank 1. The filter element 25 is arranged on the bracket 24 for secondary filtering of the waste gas after settling. The inner wall of the filter box 251 is provided with a filter screen 252, a first filter layer 253 and a second filter layer 254 from bottom to top. The lower surface of the filter box 251 is connected to an air inlet pipe 255 connected to the inner top wall of the sedimentation box 21. The lower surface of the filter box 251 is connected to the inner top wall of the sedimentation box 21 through the air inlet pipe 255 to guide the waste gas after sedimentation and separation into the filter box 251 for secondary filtration.

[0026] In this embodiment, a controller is fixed on the front of the purification tank 1, the air inlet end of the first air pump 22 is connected to the exhaust gas inlet pipe, the interior of the sedimentation box 21 is filled with sedimentation liquid, and the industrial waste gas first enters the sedimentation box 21. The interior of the sedimentation box 21 is filled with sedimentation liquid, which is used to capture large particles of solid pollutants in the exhaust gas and separate solids and gases by sedimentation. The left side of the sedimentation box 21 is connected to a water pipe 26 that runs through the outside of the purification tank 1, and a control valve is provided on the outside of the water pipe 26. The first filter layer 253 is an activated carbon layer, and the second filter layer 254 is a composite fiber filter material layer. The filter screen 252 is located at the bottom layer of the filter box 251 and is used to capture coarser particles. The first filter layer 253 is an activated carbon layer. Activated carbon has a strong adsorption capacity due to its porous structure and can effectively adsorb harmful gases in the exhaust gas. The second filter layer 254 is a composite fiber filter material layer, which is used to capture finer particles and further filter the gas to achieve a continuous filtering and purification process.

[0027] See also Figure 3 In order to separate the filtered exhaust gas for purification and discharge, the purification mechanism 3 in this embodiment includes a second air pump 31 fixed on the right side of the purification tank 1, and the air inlet end of the second air pump 31 is connected to the exhaust pipe 32 connected to the filter box 251. A combustion chamber 33 is provided on the right side of the purification tank 1. The inner wall of the combustion chamber 33 is connected to a connecting pipe 34 connected to the exhaust end of the second air pump 31. The bottom end of the connecting pipe 34 is connected to an exhaust pipe 35. The second air pump 31 is fixed on the right side of the purification tank 1, and its air inlet end is connected to the filter box 251 through the exhaust pipe 32. The filtered exhaust gas is discharged. The gas is drawn into the combustion chamber 33, where it is burned. An igniter 36 is fixed to the right inner wall of the combustion chamber 33, and a fuel supply pipe 37 is provided on the back wall of the inner cavity of the combustion chamber 33. The igniter 36 ignites the fuel provided by the fuel supply pipe 37, and the harmful gas is further decomposed or reduced by high-temperature combustion. A catalytic element 38 is provided on the upper surface of the combustion chamber 33, and the air inlet end of the third air pump 384 is connected to the combustion chamber 33, and the air outlet end is connected to the catalyst box 381, so as to transport the gas in the combustion chamber 33 to the catalyst box 381 for catalytic treatment.

[0028] The catalytic component 38 includes a catalytic box 381 arranged on the upper surface of the combustion chamber 33, a catalyst tube 382 is fixed between the inner walls on the left and right sides of the catalytic box 381, and a plurality of UV lamp tubes 383 are provided on the inner wall of the catalytic box 381 and on the outer side of the catalyst tube 382. The gas after combustion enters the catalytic box 381, and the catalytic box 381 is equipped with a catalyst tube 382 and a UV lamp tube 383. Through catalytic action and UV light irradiation, harmful substances in the exhaust gas are further decomposed and purified. A third air pump 384 is fixed on the right side of the purification tank 1, and the air inlet end of the third air pump 384 is connected to an air intake pipe 385 connected to the inner wall of the combustion chamber 33, and the air outlet end of the third air pump 384 is connected to an air guide pipe 386 connected to the catalytic box 381.

[0029] In this embodiment, the right side of the catalyst box 381 is connected to an exhaust pipe, and the gas after catalytic treatment is discharged through the exhaust pipe. A number of exhaust holes are provided on the outside of the exhaust pipe 35, and a cleaning port is provided on the front of the combustion chamber 33. The inner wall of the cleaning port is slidably connected to a waste frame 39. An exhaust hole is provided on the outside of the exhaust pipe 35 to ensure that the gas is smoothly discharged into the combustion chamber 33 for a sufficient combustion reaction. The waste frame 39 is used to regularly clean the waste generated during the combustion process.

[0030] The working principle of the above embodiment is:

[0031] (1) When the industrial waste gas is used for gas-solid separation and filtration, the first air pump 22 is located on the left side of the purification tank 1, and the industrial waste gas is guided through the waste gas inlet pipe and pumped into the sedimentation tank 21 through the air supply pipe 23. The industrial waste gas first enters the sedimentation tank 21, and the sedimentation tank 21 is filled with sedimentation liquid to capture large particles of solid pollutants in the waste gas and separate solids and gases through sedimentation. The bracket 24 is fixed between the front and rear inner walls of the purification tank 1, and the filter element 25 is arranged on the bracket 24 to perform secondary filtration on the waste gas after sedimentation. The lower surface of box 251 is connected to the inner top wall of sedimentation box 21 through air inlet pipe 255 to guide the waste gas after sedimentation and separation into filter box 251 for secondary filtration. Filter screen 252 is located at the bottom layer of filter box 251 and is used to capture coarser particles. The first filter layer 253 is an activated carbon layer. Activated carbon has a strong adsorption capacity due to its porous structure and can effectively adsorb harmful gases in the waste gas. The second filter layer 254 is a composite fiber filter material layer, which is used to capture finer particles and further filter the gas to achieve a continuous filtration and purification process.

[0032] (2) When the waste gas after separation and filtration is used for purification and discharge, the second air pump 31 is fixed on the right side of the purification tank 1, and its air inlet end is connected to the filter box 251 through the exhaust pipe 32, and the filtered gas is sucked into the combustion chamber 33, and the gas is burned in the combustion chamber 33. The igniter 36 ignites the fuel provided by the fuel supply pipe 37, and further decomposes or reduces the harmful gas through high-temperature combustion. The air inlet end of the third air pump 384 is connected to the combustion chamber 33, and the air outlet end is connected to the catalyst box 381, which is used to transport the gas in the combustion chamber 33 to the catalyst box 381 for catalytic treatment. The burned gas enters the catalyst box 381, and the catalyst box 381 is equipped with a catalyst tube 382 and a UV lamp tube 383. Through catalytic action and UV light irradiation, the harmful substances in the waste gas are further decomposed and purified. The gas after catalytic treatment is discharged through the discharge pipe. An air outlet hole is provided on the outer side of the air outlet pipe 35 to ensure that the gas is smoothly discharged into the combustion chamber 33 for a full combustion reaction. The waste frame 39 is used to regularly clean up the waste generated during the combustion process.

[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", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device 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, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] The standard parts used in this application document can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented through simple programming by technicians in this field, which is common knowledge in this field. Therefore, this application document will no longer explain the control method and circuit connection in detail.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. An industrial waste gas purification unit, comprising a purification tank (1), characterized in that: The inner bottom wall of the purification tank (1) is provided with a separation mechanism (2) for performing solid-gas separation on the industrial waste gas, and the right side of the purification tank (1) is provided with a purification mechanism (3) for performing gas-phase purification on the industrial waste gas; The separation mechanism (2) comprises a sedimentation box (21), a first air pump (22), an air supply pipe (23), a bracket (24) and a filter element (25); the sedimentation box (21) is fixed to the inner bottom wall of the purification tank (1); the first air pump (22) is fixed to the left side of the purification tank (1); one end of the air supply pipe (23) is connected to the air outlet end of the first air pump (22); and the other end of the air supply pipe (23) passes through and extends to the inner bottom wall of the sedimentation box (21); the bracket (24) is horizontally fixed between the front and rear inner walls of the purification tank (1); and the filter element (25) is arranged on the upper surface of the bracket (24) to perform secondary filtration on the waste gas after sedimentation; The filter element (25) comprises a filter box (251), the filter box (251) is fixed to the upper surface of the bracket (24), the inner wall of the filter box (251) is provided with a filter screen (252), a first filter layer (253) and a second filter layer (254) from bottom to top, and the lower surface of the filter box (251) is connected to an air intake pipe (255) connected to the inner top wall of the sedimentation box (21).

2. The industrial waste gas purification unit according to claim 1, characterized in that: A controller is fixed on the front of the purification tank (1), and the air inlet end of the first air pump (22) is connected to an exhaust gas inlet pipe.

3. The industrial waste gas purification unit according to claim 1, characterized in that: The interior of the sedimentation tank (21) is filled with sedimentation liquid. The left side of the sedimentation tank (21) is connected to a water pipe (26) that runs through the outside of the purification tank (1), and a control valve is provided on the outside of the water pipe (26).

4. The industrial waste gas purification unit according to claim 1, characterized in that: The first filter layer (253) is an activated carbon layer, and the second filter layer (254) is a composite fiber filter material layer.

5. The industrial waste gas purification unit according to claim 1, characterized in that: The purification mechanism (3) comprises a second air pump (31) fixed on the right side of the purification tank (1); the air inlet end of the second air pump (31) is connected to an air extraction pipe (32) connected to a filter box (251); a combustion chamber (33) is provided on the right side of the purification tank (1); the inner wall of the combustion chamber (33) is connected to a connecting pipe (34) connected to the air outlet end of the second air pump (31); the bottom end of the connecting pipe (34) is connected to an air outlet pipe (35); an igniter (36) is fixed to the right inner wall of the combustion chamber (33); a fuel supply pipe (37) is provided on the back wall of the inner cavity of the combustion chamber (33); and a catalytic element (38) is provided on the upper surface of the combustion chamber (33).

6. The industrial waste gas purification unit according to claim 5, characterized in that: The catalytic element (38) comprises a catalytic box (381) arranged on the upper surface of the combustion chamber (33); a catalyst tube (382) is fixed between the inner walls on the left and right sides of the catalytic box (381); a plurality of UV lamp tubes (383) are arranged on the inner wall of the catalytic box (381) and on the outer side of the catalyst tube (382); a third air pump (384) is fixed on the right side of the purification tank (1); an air inlet end of the third air pump (384) is connected to an air intake pipe (385) connected to the inner wall of the combustion chamber (33); and an air outlet end of the third air pump (384) is connected to an air guide pipe (386) connected to the catalytic box (381).

7. An industrial waste gas purification unit according to claim 6, characterized in that: The right side of the catalyst box (381) is connected to an exhaust pipe, the outer side of the exhaust pipe (35) is provided with a plurality of exhaust holes, the front side of the combustion chamber (33) is provided with a cleaning port, and the inner wall of the cleaning port is slidably connected to a waste frame (39).

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