Activated carbon purification treatment equipment for pesticide production waste gas

Abstract

The invention discloses activated carbon purification treatment equipment for pesticide production waste gas, and belongs to the technical field of waste gas treatment. Activated carbon purification treatment equipment for pesticide production waste gas comprises an adsorption box body, an air inlet hopper pipe is arranged at one end of the adsorption box body, an exhaust hopper pipe is arranged at the other end of the adsorption box body, the air inlet hopper pipe and the exhaust hopper pipe are connected with the adsorption box body through flanges, and an electric heating air box is arranged on one side of the adsorption box body. In order to solve the problems that after existing activated carbon is adsorbed and saturated, the activated carbon needs to be regenerated, harmful gas can be released during high-temperature regeneration, and the interior of a filter element cannot completely participate in a reaction, so that the adsorption efficiency of the regenerated activated carbon is reduced, a heat-conducting fin can comprehensively heat the activated carbon filter element; meanwhile, air flow is blown into the filter element in cooperation with the air guide pipe, the filter element is helped to be subjected to reaction regeneration, then the air draft function of the air guide pipe is started, waste gas generated during regeneration is sucked away, and cyclic regeneration of the filter element is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and specifically to an activated carbon purification treatment device for waste gas in pesticide production. Background Art

[0002] The components of waste gas that may be generated during pesticide production. Pesticide production usually involves organic solvents, volatile organic compounds (VOCs), acidic gases (such as HCl, SO2), ammonia, and dust. These components are harmful to the environment and human health. The adsorption of activated carbon mainly relies on physical adsorption and chemical adsorption. Physical adsorption is due to its porous structure and large specific surface area, which can adsorb organic substances;

[0003] After the existing activated carbon is saturated with adsorption, the activated carbon needs to be regenerated. However, harmful gases will be released during high-temperature regeneration, and the inside of the filter element cannot fully participate in the reaction, resulting in a decrease in the adsorption efficiency of the regenerated activated carbon. Summary of the Invention

[0004] The purpose of the present invention is to provide an activated carbon purification treatment device for waste gas in pesticide production. During the regeneration operation, the heat-conducting sheet can comprehensively heat the activated carbon filter element, and at the same time, cooperate with the air duct to blow air into the filter element to help the filter element react and regenerate. Then, the air duct starts the air extraction function, and uses the surface to extract the waste gas generated during regeneration, realizing the cyclic regeneration of the filter element, and can solve the problems in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An activated carbon purification treatment device for waste gas in pesticide production, including an adsorption box body. One end of the adsorption box body is provided with an air inlet hopper pipe, and the other end of the adsorption box body is provided with an air outlet hopper pipe. Among them, the air inlet hopper pipe and the air outlet hopper pipe are connected to the adsorption box body through flanges. One side of the adsorption box body is provided with an electric hot air box, and the electric hot air box is connected to the adsorption box body through bolts. The inside of the adsorption box body is provided with a filtration chamber, and multiple groups of activated carbon filter elements are arranged inside the filtration chamber.

[0006] Further, wind baffle partitions are arranged at both ends of the activated carbon filter element, and the wind baffle partitions are welded to the adsorption box body. Among them, partition chutes are arranged inside the wind baffle partitions. The filtration chamber includes a diversion chamber channel and a confluence chamber channel. Among them, the confluence chamber channel is located between the activated carbon filter elements. There are three diversion chamber channels, which are respectively located on both sides of the activated carbon filter elements and between the structures of two combined activated carbon filter elements. The confluence chamber channel is located between the activated carbon filter element sandwich layers. The waste gas contacts the activated carbon filter element through the diversion chamber channel, and the filtered gas enters the confluence chamber channel.

[0007] Further, a flow guiding frame is arranged inside the confluence channel. The flow guiding frame is connected to the adsorption box body by screws. Turbulence generating vanes are arranged on both sides of the flow guiding frame. The turbulence generating vanes are rotatably connected to the adsorption box body. The turbulence generating vanes and the flow guiding frame are installed in the confluence channel. By rotating the turbulence generating vanes, the included angle gap between the turbulence generating vanes and the flow guiding frame can be adjusted, so that the passing flow velocity of the air flow inside the confluence channel can be changed. The flow guiding frame can prevent the oncoming air flows from colliding with each other, while the turbulence generating vanes can prevent the air flow on the same side from flowing back.

[0008] Further, the activated carbon filter element includes a hollow cavity layer and a bone support. Among them, an outer filter layer is arranged on the outer side of the bone support, and an inner filter layer is arranged on the inner side of the bone support. The outer filter layer and the inner filter layer are both connected to the bone support by an adhesive. Grooves are arranged on both sides of the outer filter layer and the inner filter layer.

[0009] Further, the activated carbon filter element contacts the shunt channel through the outer filter layer, and the activated carbon filter element contacts the confluence channel through the inner filter layer. The shunt channel is communicated with the intake hopper pipe, and the confluence channel is communicated with the exhaust hopper pipe. The outer filter layer is in direct contact with the waste gas, while the inner filter layer is in contact with the gas filtered by the outer filter layer, so as to further improve the filtration quality.

[0010] Further, a drawer plate is arranged at one end of the activated carbon filter element. Among them, a clamping shaft is arranged on the inner side of the drawer plate. The clamping shaft is connected to the drawer plate by screws. The activated carbon filter element is connected to the clamping shaft through a clamping groove. Brackets are arranged on both sides of the clamping shaft. The brackets are attached to the activated carbon filter element through the grooves. Among them, the drawer plate is slidably connected to the partition chute through the brackets.

[0011] Further, heat conducting sheets are arranged inside the hollow cavity layer. Among them, a metal conducting core is integrally formed at one end of the heat conducting sheet, and an arc-shaped supporting groove is arranged on the inner side of the heat conducting sheet. An air duct is arranged inside the arc-shaped supporting groove.

[0012] Further, three sub-cavities are arranged inside the air duct, and air holes are arranged on the outer side of the sub-cavities. Among them, the air duct extends into the electric hot air box. The heat conducting sheet is electrically connected to the electric hot air box through the metal conducting core. During the regeneration operation, the heat conducting sheet can comprehensively heat the activated carbon filter element, and at the same time cooperate with the air duct to blow air into the filter element to help the filter element react and regenerate. Then the air duct starts the air extraction function, and uses the surface to extract the waste gas generated during regeneration, realizing the cyclic regeneration of the filter element.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. In the present invention, the spoiler vane and the deflector are installed in the confluence channel. By rotating the spoiler vane, the included angle gap between it and the deflector can be adjusted, so as to change the passing velocity of the airflow inside the confluence channel. The deflector can prevent the opposite airflows from colliding with each other, while the spoiler vane can prevent the airflows on the same side from flowing back.

[0015] 2. In the present invention, the outer filter layer is in direct contact with the waste gas, while the inner filter layer is in contact with the gas filtered by the outer filter layer, which can further improve the filtration quality. During the regeneration operation, the heat conducting sheet can heat the activated carbon filter element comprehensively, and at the same time cooperate with the air duct to blow air into the filter element to help the filter element react and regenerate. Then, the air duct starts the air extraction function, and uses the air holes on the surface to extract the waste gas generated during regeneration, realizing the cyclic regeneration of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall front view of the present invention;

[0017] Figure 2 is the schematic diagram of the overall internal structure of the present invention;

[0018] Figure 3 is Figure 2 the enlarged schematic diagram of part A of

[0019] Figure 4 is the schematic sectional structure diagram of the activated carbon filter element of the present invention;

[0020] Figure 5 is the schematic diagram of the drawer board structure of the present invention;

[0021] Figure 6 is the schematic diagram of the air duct structure of the present invention.

[0022] In the figure: 1. Adsorption box body; 2. Air inlet hopper pipe; 3. Exhaust hopper pipe; 4. Electric hot air box; 101. Drawer board; 102. Activated carbon filter element; 103. Wind baffle partition; 104. Filter cavity; 105. Deflector; 1011. Card shaft; 1012. Bracket; 1021. Fitting groove; 1022. Hollow cavity layer; 1023. Outer filter layer; 1024. Inner filter layer; 1025. Bone support; 1031. Partition sliding groove; 1041. Shunt channel; 1042. Confluence channel; 1051. Spoiler vane; 401. Air duct; 402. Heat conducting sheet; 4011. Air hole; 4012. Sub-cavity; 4021. Arc-shaped support groove; 4022. Metal guide core. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0024] In order to solve the problem that after the existing activated carbon is adsorbed and saturated, the activated carbon needs to be regenerated, harmful gases will be released during high-temperature regeneration, and the inside of the filter element cannot fully participate in the reaction, resulting in a decrease in the adsorption efficiency of the regenerated activated carbon; please refer to Figures 1-6 , the following technical solutions are provided in this embodiment:

[0025] Embodiment 1:

[0026] An activated carbon purification treatment device for pesticide production waste gas, including an adsorption box body 1, an air inlet hopper pipe 2 is arranged at one end of the adsorption box body 1, and an air outlet hopper pipe 3 is arranged at the other end of the adsorption box body 1. Among them, the air inlet hopper pipe 2 and the air outlet hopper pipe 3 are both connected to the adsorption box body 1 through flanges. The waste gas generated during the pesticide production process is transported through a pipeline into the air inlet hopper pipe 2, and then enters the adsorption box body 1 equipped with an activated carbon structure through the air inlet hopper pipe 2, and is discharged from the air outlet hopper pipe 3 after being adsorbed by the activated carbon. An electric hot air box 4 is arranged on one side of the adsorption box body 1, and the electric hot air box 4 is connected to the adsorption box body 1 through bolts. A fan device and an electric heating device are arranged inside the electric hot air box 4. A filter cavity 104 is arranged inside the adsorption box body 1, and multiple groups of activated carbon filter elements 102 are arranged inside the filter cavity 104. There are a total of four activated carbon filter elements 102 inside the box body, and two of them are combined to form two groups of filtering structures;

[0027] Wind baffle partitions 103 are arranged at both ends of the activated carbon filter element 102, and the wind baffle partitions 103 are welded to the adsorption box body 1. The wind baffle partitions 103 cooperate with the activated carbon filter element 102 to change the air duct structure inside the filter cavity 104, so that the waste gas can flow in a set direction. Among them, a partition chute 1031 is arranged inside the wind baffle partition 103. The filter cavity 104 includes a diversion cavity 1041 and a confluence cavity 1042. Among them, the confluence cavity 1042 is located between the activated carbon filter elements 102. A guide frame 105 is arranged inside the confluence cavity 1042, and the guide frame 105 is connected to the adsorption box body 1 through screws. Turbulence vane plates 1051 are arranged on both sides of the guide frame 105, and the turbulence vane plates 1051 are rotatably connected to the adsorption box body 1. There are three diversion cavities 1041, which are respectively located on both sides of the activated carbon filter element 102 and between the two combined activated carbon filter element structures, and the confluence cavity 1042 is located between the activated carbon filter element layers. The waste gas contacts the activated carbon filter element 102 through the diversion cavity 1041, and the filtered gas enters the confluence cavity 1042;

[0028] The spoiler vane 1051 and the flow guide frame 105 are installed in the confluence channel 1042. By rotating the spoiler vane 1051, the included angle gap between it and the flow guide frame 105 can be adjusted, so that the passing flow velocity of the air flow inside the confluence channel 1042 can be changed. The flow guide frame 105 can prevent the opposite air flows from colliding with each other, while the spoiler vane 1051 can prevent the air flow on the same side from flowing back;

[0029] Example 2:

[0030] In order to ensure the filtration efficiency of the filter element for waste gas, after working for a period of time, the activated carbon filter element 102 needs to be regenerated. At this time, through the structural design of the inner and outer filter layers of the activated carbon filter element 102, the filtration efficiency can be effectively improved, and at the same time, it is convenient for the activated carbon filter element 102 to carry out the heating regeneration operation;

[0031] Please refer to Figures 4-5 , the activated carbon filter element 102 includes a hollow cavity layer 1022 and a bone support 1025. Among them, an outer filter layer 1023 is arranged on the outer side of the bone support 1025, and an inner filter layer 1024 is arranged on the inner side of the bone support 1025. The outer filter layer 1023 and the inner filter layer 1024 are both connected to the bone support 1025 through an adhesive. Grooves 1021 are arranged on both sides of the outer filter layer 1023 and the inner filter layer 1024. The activated carbon filter element 102 contacts the shunt channel 1041 through the outer filter layer 1023, and the activated carbon filter element 102 contacts the confluence channel 1042 through the inner filter layer 1024. The shunt channel 1041 is communicated with the intake hopper pipe 2, and the confluence channel 1042 is communicated with the exhaust hopper pipe 3. The outer filter layer 1023 is in direct contact with the waste gas, while the inner filter layer 1024 is in contact with the gas filtered by the outer filter layer 1023. In this way, the filtration quality can be further improved. During the regeneration operation, only the structure of the outer filter layer 1023 needs to be heated and purged;

[0032] A drawer plate 101 is arranged at one end of the activated carbon filter element 102. Among them, a clamping shaft 1011 is arranged on the inner side of the drawer plate 101. The clamping shaft 1011 is connected to the drawer plate 101 through screws. The activated carbon filter element 102 is connected to the clamping shaft 1011 through a clamping groove. Brackets 1012 are arranged on both sides of the clamping shaft 1011. The brackets 1012 are attached to the activated carbon filter element 102 through the grooves 1021. Among them, the drawer plate 101 is slidably connected to the partition chute 1031 through the brackets 1012. The activated carbon filter element 102 and the drawer plate 101 adopt a detachable design structure, which is convenient for replacing and cleaning the activated carbon filter element 102;

[0033] Example 3:

[0034] During the regeneration process, the activated carbon filter element 102 needs to be in contact with high-temperature steam. By means of the heat-conducting sheet 402 and the air duct 401, the waste gas generated during the regeneration process of the activated carbon filter element 102 can be efficiently recovered.

[0035] Please refer to Figure 2 and Figure 6 As shown in Figures and, a heat-conducting sheet 402 is arranged inside the hollow cavity layer 1022. One end of the heat-conducting sheet 402 is provided with an integrally formed metal core 4022. An arc-shaped support groove 4021 is arranged on the inner side of the heat-conducting sheet 402. An air duct 401 is arranged inside the arc-shaped support groove 4021. Three sub-chambers 4012 are arranged inside the air duct 401. Air holes 4011 are arranged on the outer side of the sub-chambers 4012. The air duct 401 extends into the electric hot air box 4. The heat-conducting sheet 402 is electrically connected to the electric hot air box 4 through the metal core 4022. The heat-conducting sheet 402 can comprehensively heat the activated carbon filter element 102, and at the same time, cooperate with the air duct 401 to blow air flow into the filter element to help the filter element react and regenerate. Then, the air duct 401 starts the air extraction function, and uses the air holes 4011 on the surface to extract the waste gas generated during regeneration, realizing the cyclic regeneration of the filter element.

[0036] The working principle is as follows: The waste gas generated during the pesticide production process is transported through a pipeline to the air inlet hopper pipe 2, and then enters the adsorption box 1 equipped with an activated carbon structure through the air inlet hopper pipe 2. The waste gas contacts the activated carbon filter element 102 through the shunt cavity 1041, and the filtered gas enters the confluence cavity 1042. During this process, the outer filter layer 1023 is in direct contact with the waste gas, while the inner filter layer 1024 is in contact with the gas filtered through the outer filter layer 1023, which can further improve the filtration quality. During the regeneration operation, only the outer filter layer 1023 structure needs to be heated and purged emphatically.

[0037] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0038] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention.

Claims

1. An activated carbon purification treatment device for pesticide production waste gas, characterized in that, It includes an adsorption box body (1), one end of the adsorption box body (1) is provided with an air inlet hopper pipe (2), and the other end of the adsorption box body (1) is provided with an exhaust hopper pipe (3). Among them, the air inlet hopper pipe (2) and the exhaust hopper pipe (3) are both connected to the adsorption box body (1) through flanges. One side of the adsorption box body (1) is provided with an electric hot air box (4), and the electric hot air box (4) is connected to the adsorption box body (1) through bolts. A filter chamber (104) is arranged inside the adsorption box body (1), and multiple groups of activated carbon filters (102) are arranged inside the filter chamber (104).

2. The activated carbon purification treatment equipment for the waste gas in pesticide production according to claim 1, wherein: Wind baffle partitions (103) are arranged at both ends of the activated carbon filter (102), and the wind baffle partitions (103) are connected to the adsorption box body (1) by welding. Among them, a partition chute (1031) is arranged inside the wind baffle partition (103). The filter chamber (104) includes a diversion chamber channel (1041) and a confluence chamber channel (1042). Among them, the confluence chamber channel (1042) is located between the activated carbon filters (102).

3. The activated carbon purification treatment equipment for the waste gas in pesticide production according to claim 2, characterized in that: A flow guide frame (105) is arranged inside the confluence chamber channel (1042), and the flow guide frame (105) is connected to the adsorption box body (1) by screws. Turbulence leaf plates (1051) are arranged on both sides of the flow guide frame (105), and the turbulence leaf plates (1051) are rotatably connected to the adsorption box body (1).

4. The activated carbon purification treatment equipment for pesticide production waste gas according to claim 2, characterized in that: The activated carbon filter (102) includes a hollow cavity layer (1022) and a bone support (1025). Among them, an outer filter layer (1023) is arranged on the outer side of the bone support (1025), and an inner filter layer (1024) is arranged on the inner side of the bone support (1025). The outer filter layer (1023) and the inner filter layer (1024) are both connected to the bone support (1025) through an adhesive. Joint grooves (1021) are arranged on both sides of the outer filter layer (1023) and the inner filter layer (1024).

5. The activated carbon purification treatment equipment for pesticide production waste gas according to claim 4, characterized in that: The activated carbon filter (102) contacts the diversion chamber channel (1041) through the outer filter layer (1023), and the activated carbon filter (102) contacts the confluence chamber channel (1042) through the inner filter layer (1024). The diversion chamber channel (1041) communicates with the air inlet hopper pipe (2), and the confluence chamber channel (1042) communicates with the exhaust hopper pipe (3).

6. The activated carbon purification treatment equipment for pesticide production waste gas according to claim 5, characterized in that: A drawer board (101) is arranged at one end of the activated carbon filter (102). Among them, a clamping shaft (1011) is arranged inside the drawer board (101), and the clamping shaft (1011) is connected to the drawer board (101) by screws. The activated carbon filter (102) is connected to the clamping shaft (1011) through a clamping groove. Brackets (1012) are arranged on both sides of the clamping shaft (1011), and the brackets (1012) are attached to the activated carbon filter (102) through the joint grooves (1021). Among them, the drawer board (101) is slidably connected to the partition chute (1031) through the brackets (1012).

7. The activated carbon purification treatment equipment for pesticide production waste gas according to claim 4, characterized in that: A heat conducting fin (402) is arranged inside the hollow cavity layer (1022). One end of the heat conducting fin (402) is provided with an integrally formed metal conducting core (4022). An arc-shaped support groove (4021) is arranged on the inner side of the heat conducting fin (402). An air duct (401) is arranged inside the arc-shaped support groove (4021).

8. The activated carbon purification treatment equipment for the waste gas in pesticide production according to claim 7, characterized in that: Three sub-cavities (4012) are arranged inside the air duct (401). Air holes (4011) are arranged on the outer side of the sub-cavities (4012). The air duct (401) extends into the electric hot air box (4). The heat conducting fin (402) is electrically connected to the electric hot air box (4) through the metal conducting core (4022).

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