An exhaust gas treatment device for industrial paint production

Abstract

The present invention relates to the technical field of waste gas treatment devices, and specifically relates to a waste gas treatment device for industrial paint production; a plurality of adsorption tube assemblies provided on a rotating assembly cooperate with adsorbing members filled with activated carbon installed in the adsorption tube assemblies. The timed rotation of the motor enables the activated carbon located at the intake pipe to maintain a good adsorption effect. The water inside the bottom of the adsorption housing cooperates with a hot gas pipe assembly and an exhaust pipe. After the water dissolves the inorganic substances in the activated carbon, the hot gas in the hot gas pipe assembly desorbs the organic waste gas adsorbed in the activated carbon and enables it to enter the combustion mechanism along with the hot air flow for combustion. At the same time, the activated carbon dried by the hot gas rotates to the top and is cooled for the next use, realizing the adsorption and desorption of the activated carbon and also realizing the purification of impurities in the waste gas; solving the problem that when using activated carbon to adsorb the waste gas generated during industrial paint production, frequent replacement of the activated carbon is beneficial to improving the adsorption effect, but it is easy to waste the time of workers.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment devices, and particularly to a waste gas treatment device for industrial paint production. Background Art

[0002] In the process of producing industrial paint, an exhaust duct is required to timely extract the waste gas containing in the air during the production of industrial paint, preventing the waste gas from polluting the working environment of workers and affecting their physical health. When treating the discharged waste gas, since it contains both inorganic and organic substances, activated carbon is usually used to adsorb and filter both substances in the waste gas at the same time. However, during the use of activated carbon, it needs to be replaced before adsorption saturation. Moreover, as the use time of activated carbon increases, more impurities are adsorbed in the activated carbon. When the waste gas passes through, the parts that have adsorbed impurities will no longer adsorb the impurities in the waste gas, resulting in the inability of activated carbon to timely adsorb the impurities in the waste gas during this process, causing some impurities to pass through the activated carbon, and thus the adsorption effect of activated carbon in the process of purifying waste gas gradually weakens. Therefore, it is necessary to frequently replace the activated carbon to maintain its adsorption effect. However, frequently replacing the activated carbon wastes the time of workers for disassembly and installation. Summary of the Invention

[0003] (I) Technical Problems to be Solved

[0004] In view of the deficiencies of the prior art, the present invention provides a waste gas treatment device for industrial paint production, which solves the problem that when using activated carbon to adsorb the waste gas generated during industrial paint production, frequently replacing the activated carbon is beneficial to improving the adsorption effect but is prone to wasting the time of workers.

[0005] (II) Technical Solutions

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A waste gas treatment device for industrial paint production includes a combustion mechanism for treating organic waste gas, a negative pressure fan is provided on the combustion mechanism, and an adsorption mechanism is communicated on one side of the combustion mechanism;

[0008] The adsorption mechanism includes an adsorption housing fixed to the side wall of the combustion mechanism. An air inlet pipe is provided on the left side of the adsorption housing, an air outlet pipe communicating with the combustion mechanism is provided on the right side of the adsorption housing, a water outlet pipe is provided at the bottom of the adsorption housing, a water inlet pipe is provided on the side surface of the adsorption housing, a replaceable component that can be opened is provided at the top of the adsorption housing, a double-layer hot air pipe assembly penetrating the combustion mechanism is provided at the center of the adsorption housing, a rotating component is rotatably provided on the outer wall of the hot air pipe assembly, and a plurality of adsorption pipe assemblies respectively cooperating with the air inlet pipe, the air outlet pipe, and the replaceable component are evenly distributed on the rotating component. Through holes are provided on the surface of the adsorption pipe assembly, an adsorbent filled with activated carbon is fixed inside one end of the adsorption pipe assembly away from the hot air pipe assembly, and a motor for driving the rotating component to rotate is fixed on the outer wall of the adsorption housing.

[0009] Preferably, the combustion mechanism includes a combustion housing fixed to the side wall of the adsorption mechanism and hollow inside. A plurality of heating pipes are evenly arranged inside the combustion housing, an exhaust pipe is provided on one side of the combustion housing, a negative pressure fan is arranged on the exhaust pipe, and the other side of the combustion housing is communicated with the air outlet pipe.

[0010] Preferably, guide plates are staggeredly fixed to the inner top wall and the inner bottom wall of the combustion housing between the air outlet pipe and the exhaust pipe, and both sides of the guide plates are fixed to the inner side walls of both sides of the combustion housing.

[0011] Preferably, the replaceable component includes a replacement pipe with a diameter larger than that of the adsorption pipe assembly, and a plug that can be inserted and pulled out is provided inside the replacement pipe.

[0012] Preferably, the hot air pipe assembly includes an inner pipe penetrating the side walls of the combustion mechanism and the adsorption housing, an outer pipe arranged inside the adsorption housing is fixed to the outer wall of the inner pipe, and a connecting pipe facing the air outlet pipe is communicated between the inner pipe and the outer pipe.

[0013] Preferably, the rotating component includes a rotating pipe rotatably connected to the outer pipe, and further includes a rotating ring slidably connected to the inner cylindrical side wall of the adsorption housing. The adsorption pipe assembly communicates the outer wall of the rotating ring and the inner wall of the rotating pipe.

[0014] Preferably, the adsorption pipe assembly includes an installation pipe communicating the outer wall of the rotating ring and the inner wall of the rotating pipe, and an installation groove for clamping the adsorbent is provided at one end of the installation pipe away from the hot air pipe assembly.

[0015] Preferably, the through holes are evenly arranged at one end of the installation pipe away from the installation groove.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present invention provides an exhaust gas treatment device for industrial paint production, having the following beneficial effects:

[0018] A plurality of adsorption tube assemblies provided on the rotating assembly cooperate with adsorbing members filled with activated carbon inside the adsorption tube assemblies. Through the timed rotation of the motor, the activated carbon located at the intake pipe always maintains a good adsorption effect, thereby maintaining its purification effect on waste gas. The water inside the bottom of the adsorption housing cooperates with the hot gas pipe assembly and the outlet pipe. After the water dissolves the inorganic substances in the activated carbon, the hot gas in the hot gas pipe assembly further desorbs the organic waste gas adsorbed in the activated carbon and enables it to enter the combustion mechanism with the hot air flow for combustion. At the same time, the activated carbon dried by the hot gas rotates to the top and cools for the next use. The whole process realizes the adsorption and desorption of the activated carbon, realizes the purification of impurities in the waste gas, and does not require frequent manual replacement, which is simple and convenient.

[0019] The negative pressure fan provided on the combustion mechanism promotes the flow of gas on the one hand and generates negative pressure inside the adsorption mechanism on the other hand, preventing the waste gas from escaping to the outside air through the gaps of the device. At the same time, the gas flow channels formed by the guide plates inside the combustion housing enable the waste gas to burn more fully. The waste gas desorbed from the activated carbon by the hot gas is more uniform and has a lower concentration compared to the waste gas concentratedly generated during the industrial paint production process, making it more convenient to purify. Brief Description of the Drawings

[0020] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0021] Figure 1 is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 is a schematic diagram of the adsorption mechanism of the present invention;

[0023] Figure 3 is a cross-sectional view of the combustion mechanism of the present invention;

[0024] Figure 4 is a cross-sectional view of the adsorption mechanism of the present invention;

[0025] Figure 5 is a cross-sectional view of the rotating assembly of the present invention;

[0026] Figure 6 is a schematic diagram of the hot gas pipe assembly of the present invention.

[0027] In the figure: 1. Combustion mechanism; 11. Negative pressure fan; 12. Combustion housing; 13. Heating pipe; 14. Exhaust pipe; 15. Guide plate; 2. Adsorption mechanism; 21. Adsorption housing; 22. Intake pipe; 23. Outlet pipe; 24. Outlet water pipe; 25. Intake water pipe; 26. Replacement component; 261. Replacement pipe; 262. Plug; 27. Hot gas pipe component; 271. Inner pipe; 272. Outer pipe; 273. Connecting pipe; 28. Rotating component; 281. Rotating pipe; 282. Rotating ring; 29. Adsorption pipe component; 291. Installation pipe; 292. Installation groove; 30. Through hole; 31. Adsorbent; 32. Motor. Detailed implementation mode

[0028] The following will cooperate with the drawings and embodiments to elaborate on the implementation mode of the present application, so as to fully understand the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects and implement accordingly.

[0029] Figures 1-6 As an embodiment of the present invention, the adsorption and desorption of activated carbon are automatically realized through relevant structures, eliminating the trouble of frequent replacement by workers. At the same time, the service life of activated carbon is extended, the replacement cycle is reduced, and the time of workers is saved.

[0030] An exhaust gas treatment device for industrial paint production includes a combustion mechanism 1 for treating organic waste gas. A negative pressure fan 11 is provided on the combustion mechanism 1. One side of the combustion mechanism 1 is connected to an adsorption mechanism 2. The negative pressure fan 11 is used to generate negative pressure in the combustion mechanism 1 and the adsorption mechanism 2, thereby guiding the flow of gas and preventing the waste gas from escaping to the outside through the gaps caused by insufficient sealing of the device, thus protecting the safety of the working environment.

[0031] The adsorption mechanism 2 includes an adsorption housing 21 fixed to the side wall of the combustion mechanism 1. An intake pipe 22 is provided on the left side of the adsorption housing 21, and waste gas enters from the intake pipe 22. An outlet pipe 23 communicating with the combustion mechanism 1 is provided on the right side of the adsorption housing 21. The preliminarily purified waste gas flows into the combustion mechanism 1 through the outlet pipe 23 for combustion, thereby removing the organic matter in the waste gas. A water outlet pipe 24 is provided at the bottom of the adsorption housing 21, and a water inlet pipe 25 is provided on the side of the adsorption housing 21. Water is filled into the lower part of the adsorption housing 21 from the water inlet pipe 25 to clean the inorganic substances in the activated carbon that has passed through the water, realizing the preliminary desorption of the activated carbon, so as to maintain the adsorption effect of the activated carbon. A replaceable component 26 that can be opened is provided at the top of the adsorption housing 21. When replacement is needed, the replaceable component 26 is opened to replace the activated carbon. A double-layer hot air pipe assembly 27 passing through the combustion mechanism 1 is provided at the center of the adsorption housing 21. The hot air pipe assembly 27 is used to suck in clean air from the outside. The air is heated when passing through the combustion mechanism 1. When the heated air passes through the activated carbon at the outlet pipe 23, the hot air can help the organic matter adsorbed in the activated carbon to desorb and flow along with the hot air. This is mainly based on the principle that the adsorption capacity of a substance decreases with the increase in temperature. A rotating component 28 is rotatably provided on the outer wall of the hot air pipe assembly 27. A plurality of adsorption pipe assemblies 29 respectively cooperating with the intake pipe 22, the outlet pipe 23 and the replaceable component 26 are evenly distributed on the rotating component 28. Each time the adsorption pipe assembly 29 rotates with the rotating component 28, the adsorption pipe assembly 29 is provided at the intake pipe 22, the outlet pipe 23 and the replaceable component 26. Through holes 30 are formed on the surface of the adsorption pipe assembly 29 for facilitating the entry of water into the activated carbon for cleaning, washing out the adsorbed inorganic substances, and the washed-out inorganic substances will precipitate to the bottom. An adsorbent 31 filled with activated carbon is fixed inside one end of the adsorption pipe assembly 29 away from the hot air pipe assembly 27. A motor 32 for driving the rotation of the rotating component 28 is fixed to the outer wall of the adsorption housing 21. The motor 32 is used to drive the rotating component 28 to rotate periodically, so as to continuously replace the activated carbon at the intake pipe 22 and keep the activated carbon at the intake pipe 22 in good adsorption effect. When the adsorption effect of the activated carbon at the intake pipe 22 drops due to adsorbing a certain amount of impurities in the waste gas, the motor 32 is started regularly to transfer it to the water below the adsorption housing 21 to wash out the inorganic substances and part of the organic matter, realizing the preliminary desorption of the activated carbon and reducing the adsorbed substances. The impurities in the water flow out through the water outlet pipe 24 and are stored and centrally treated. Subsequently, the activated carbon is transferred to the outlet pipe 23, and most of the adsorbed organic matter is desorbed by the hot air and enters the combustion mechanism 1 for combustion treatment. And at this time, the organic gas is desorbed step by step, and the concentration is relatively more average, which also facilitates the full combustion treatment of the combustion mechanism 1. At the same time, the hot air can also dry the activated carbon. Subsequently, the activated carbon rotates to the top for preliminary cooling, and finally rotates to the intake pipe 22 to adsorb again. The whole process utilizes the adsorption effect of the activated carbon,The waste gas containing organic and inorganic substances generated in the process of industrial paint production is efficiently purified. The inorganic substances in the activated carbon are dissolved and separated out by water, and the organic waste gas in the activated carbon is gradually desorbed and burned by hot air, thereby cleaning the activated carbon. Finally, the activated carbon is cooled at the top of the adsorption shell 21 to restore its efficient desorption effect. When the activated carbon can no longer desorb and adsorb and achieve the purpose of purifying the air, it is replaced by replacing the replacement component 26, so that the activated carbon always maintains an efficient adsorption effect during the adsorption process and reduces the frequency of replacement by workers.

[0032] As a preferred technical solution of this embodiment, the combustion mechanism 1 includes a combustion shell 12 which is fixed to the side wall of the adsorption mechanism 2 and is hollow inside. A plurality of heating tubes 13 are evenly arranged in the combustion shell 12. An exhaust pipe 14 is provided on one side of the combustion shell 12. A negative pressure fan 11 is arranged on the exhaust pipe 14. The other side of the combustion shell 12 is connected to the exhaust pipe 23. The exhaust gas is discharged under the guidance of the airflow generated by the negative pressure fan 11. During the flow in the combustion shell 12, the high temperature in the combustion shell 12 causes the organic matter in the exhaust gas to burn, thereby purifying the exhaust gas, which is simple and convenient.

[0033] As a preferred technical solution of this embodiment, a guide plate 15 is provided in the combustion shell 12 between the outlet pipe 23 and the exhaust pipe 14, and the guide plates 15 are staggered and fixed on the top and bottom walls inside the combustion shell 12. The two sides of the guide plate 15 are fixed to the inner walls on both sides of the combustion shell 12. The guide plate 15 divides the exhaust gas flow channel in the combustion shell 12, so that the exhaust gas flows through the combustion shell 12 for a longer time, so that it can be burned and purified more fully.

[0034] As a preferred technical solution of this embodiment, the replacement assembly 26 includes a replacement tube 261 whose diameter is larger than that of the adsorption tube assembly 29, so that the adsorption element 31 filled with activated carbon can be taken out and replaced through the replacement tube 261. A pluggable plug 262 is provided in the replacement tube 261. After the replacement is completed, the plug 262 is tightly plugged, which is beneficial to maintain the pressure in the adsorption mechanism 2, so that the gas can flow smoothly.

[0035] As a preferred technical solution of this embodiment, the hot gas pipe assembly 27 includes an inner pipe 271 that penetrates through the side wall of the combustion mechanism 1 and the adsorption housing 21. An outer pipe 272 disposed within the adsorption housing 21 is fixed to the outer wall of the inner pipe 271. A connecting pipe 273 is communicated between the inner pipe 271 and the outer pipe 272 and is oriented towards the air outlet pipe 23. A gap is left between the inner pipe 271 and the outer pipe 272, so that the static air filled between the two can be used to achieve a heat insulation effect, preventing heat from dissipating in other directions except towards the air outlet pipe 23, concentrating the heat at the air outlet pipe 23, so that the activated carbon located at the air outlet pipe 23 can be better desorbed, and also preventing the temperature of the dissipated heat from affecting the adsorption effect of the activated carbon located at the air inlet pipe 22, thereby improving the adsorption and desorption effects of the activated carbon in the adsorbent 31.

[0036] As a preferred technical solution of this embodiment, the rotating assembly 28 includes a rotating pipe 281 rotatably connected to the outer pipe 272, and further includes a rotating ring 282 slidably connected to the inner cylindrical side wall of the adsorption housing 21. The adsorption pipe assembly 29 communicates the outer wall of the rotating ring 282 and the inner wall of the rotating pipe 281. The rotating ring 282 can block the inlet of the air inlet pipe 22 during the rotation of the adsorbent 31 filled with activated carbon, preventing the waste gas from directly entering the adsorption housing 21 when the adsorbent 31 rotates, so that the waste gas cannot be effectively purified. Therefore, the waste gas in the industrial paint production process can be effectively purified.

[0037] As a preferred technical solution of this embodiment, the adsorption pipe assembly 29 includes an installation pipe 291 that communicates the outer wall of the rotating ring 282 and the inner wall of the rotating pipe 281. An installation groove 292 for clamping the adsorbent 31 is provided at one end of the installation pipe 291 away from the hot gas pipe assembly 27. When replacing the adsorbent 31 filled with activated carbon, it is only necessary to place the adsorbent 31 into the installation groove 292, and it is fixed by the inner wall of the installation groove 292, which is simpler and more convenient.

[0038] As a preferred technical solution of this embodiment, through holes 30 are uniformly provided at one end of the installation pipe 291 away from the installation groove 292. When the waste gas containing organic and inorganic substances contacts the activated carbon located at the air inlet pipe 22, the waste gas flows through the entire activated carbon, preventing it from directly flowing out from the side of the activated carbon, thereby increasing the adsorption time and adsorption area of the activated carbon and improving the adsorption effect of the activated carbon.

[0039] It should be noted that in this article, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0040] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0041] 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 principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An exhaust gas treatment device for industrial paint production, comprising a combustion mechanism (1) for treating organic waste gas, and a negative pressure fan (11) is provided on the combustion mechanism (1), characterized in that: One side of the combustion mechanism (1) is connected to an adsorption mechanism (2); The adsorption mechanism (2) comprises an adsorption shell (21) fixed to the side wall of the combustion mechanism (1); an air inlet pipe (22) is provided on the left side of the adsorption shell (21); an air outlet pipe (23) connected to the combustion mechanism (1) is provided on the right side of the adsorption shell (21); a water outlet pipe (24) is provided at the bottom of the adsorption shell (21); a water inlet pipe (25) is provided on the side of the adsorption shell (21); an openable replacement component (26) is provided at the top of the adsorption shell (21); and a double-layer hot air pipe component (26) penetrating the combustion mechanism (1) is provided at the center of the adsorption shell (21). 7) A rotating assembly (28) is rotatably provided on the outer wall of the hot air pipe assembly (27), a plurality of adsorption tube assemblies (29) respectively cooperating with the air inlet pipe (22), the air outlet pipe (23) and the replacement assembly (26) are evenly distributed on the rotating assembly (28), a through hole (30) is opened on the surface of the adsorption tube assembly (29), an adsorption member (31) filled with activated carbon is fixed inside the end of the adsorption tube assembly (29) away from the hot air pipe assembly (27), and a motor (32) for driving the rotating assembly (28) to rotate is fixed on the outer wall of the adsorption shell (21); The combustion mechanism (1) comprises a combustion shell (12) fixed to the side wall of the adsorption mechanism (2) and having a hollow interior, a plurality of heating tubes (13) being evenly arranged in the combustion shell (12), an exhaust pipe (14) being arranged on one side of the combustion shell (12), a negative pressure fan (11) being arranged on the exhaust pipe (14), and the other side of the combustion shell (12) being connected to an exhaust pipe (23); The hot air pipe assembly (27) comprises an inner pipe (271) penetrating the combustion mechanism (1) and the side wall of the adsorption shell (21); an outer pipe (272) arranged in the adsorption shell (21) is fixed to the outer wall of the inner pipe (271); a connecting pipe (273) toward the air outlet pipe (23) is connected between the inner pipe (271) and the outer pipe (272); The rotating assembly (28) includes a rotating tube (281) rotatably connected to the outer tube (272), and also includes a rotating ring (282) slidably connected to the inner cylindrical side wall of the adsorption shell (21); the adsorption tube assembly (29) is connected to the outer wall of the rotating ring (282) and the inner wall of the rotating tube (281); The adsorption tube assembly (29) comprises a mounting tube (291) communicating with the outer wall of the rotating ring (282) and the inner wall of the rotating tube (281); an end of the mounting tube (291) away from the hot air pipe assembly (27) is provided with a mounting groove (292) for engaging the adsorption component (31).

2. The exhaust gas treatment device for industrial paint production according to claim 1, characterized in that: A guide plate (15) is provided in the combustion shell (12) between the air outlet pipe (23) and the exhaust pipe (14), and is fixed alternately to the top wall and the bottom wall inside the combustion shell (12), and two sides of the guide plate (15) are fixed to the inner walls of the combustion shell (12) on both sides.

3. The exhaust gas treatment device for industrial paint production according to claim 1, characterized in that: The replacement assembly (26) comprises a replacement tube (261) having a diameter greater than that of the adsorption tube assembly (29), and a pluggable plug (262) is provided in the replacement tube (261).

4. The exhaust gas treatment device for industrial paint production according to claim 1, characterized in that: The through holes (30) are uniformly arranged at one end of the mounting pipe (291) away from the mounting groove (292).

Images