Efficient activated carbon adsorption and desorption device

Abstract

The utility model provides an efficient activated carbon adsorption and desorption device, which relates to the technical field of air purification treatment and comprises a device box body, a hot air box body arranged on one side of the device box body, a partition plate a arranged in the device box body, a partition plate b arranged in the device box body, two pressure relief boxes arranged below the partition plate b, and a desorption component arranged in the device box body, the pressure relief assembly is arranged between the partition plate b and the pressure relief box and is used for relieving pressure in the device box body. According to the activated carbon adsorption and desorption device, through the arrangement of the desorption assembly, the downtime can be shortened, waste gas can be continuously treated, the overall efficiency of waste gas treatment is improved, through the arrangement of the pressure relief assembly, the stress on the equipment structure caused by too large pressure difference can be reduced, and the overall service life of the equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of air purification and treatment, in particular to a high-efficiency activated carbon adsorption and desorption device. Background Art

[0002] Activated carbon adsorption and desorption device is an environmentally friendly equipment used for waste gas treatment and air purification. Its core function is to use the powerful adsorption capacity of activated carbon to capture and remove harmful substances, especially volatile organic compounds, toxic and harmful gases, and pollutants in other industrial waste gases. Volatile organic compounds VOCs usually refer to organic compounds with a saturated vapor pressure greater than 70Pa at room temperature and a boiling point of less than 260°C at normal pressure. The main sources are motor vehicle emissions, industrial processes, oil volatilization, solvent use, biomass and coal combustion. The composition of VOCs is very complex, containing organic compounds such as alkanes, alkenes, alkynes, halogenated hydrocarbons, aromatic hydrocarbons, alcohols, nitriles, lipids, aldehydes and ketones. It is the main precursor to the formation of photochemical oxidants and secondary organic aerosols, and is also the cause of haze. VOCs are the main pollutants in the air. Some VOCs components can also cause harm to human health. Common VOCs removal methods include absorption, condensation, membrane separation and plasma decomposition. Compared with other methods, adsorption has the advantages of mature technology, simple operation, low energy consumption and high purification efficiency. It is suitable for low-concentration and high-air volume VOCs purification. The effect of adsorption mainly depends on the properties of the adsorbent. Commonly used adsorbents include activated carbon, silica gel, activated alumina, zeolite, etc. Activated carbon has rich pore structure, rich in various functional groups on the surface, stable performance, easy to prepare and low cost. It is a good adsorbent. However, there is no good way to remove VOCs in combustion exhaust emissions, and the activated carbon adsorption plate used needs to be manually taken out and desorbed after adsorption saturation.

[0003] In response to the above problems, China's publication number is: CN210356581U "A high-efficiency activated carbon adsorption and removal of VOCs device". By setting the air inlet chamber into an expansion section, on the one hand, the exhaust gas flow rate can be changed from a contraction to an opening, slowing down the air intake rate, and effectively making the exhaust gas evenly sprayed to the upper and lower sides of the gas distributor. On the other hand, the exhaust gas is more evenly distributed in the activated carbon adsorption plate, so that the adsorption effect is better. At the same time, it can also reduce to a certain extent the local overheating caused by the entry of large air volume exhaust gas, and improve the service life of the adsorption equipment. By setting a desorption box above the adsorption box, when the activated carbon adsorption plate is saturated with adsorption, it can automatically desorb it for recycling.

[0004] However, this type of activated carbon adsorption and removal device still has certain defects when in use. For example, when desorbing activated carbon, this type of activated carbon adsorption and removal device needs to be shut down to desorb the activated carbon plate, which makes the entire exhaust gas treatment process unable to proceed continuously, affecting production continuity and exhaust gas treatment efficiency. In addition, after the activated carbon plate is saturated with adsorption, the pores of the saturated activated carbon are occupied by the adsorbent, reducing the effective channel area for air or exhaust gas to pass through the activated carbon layer and increasing the resistance of the fluid to pass through the activated carbon layer. Long-term high-pressure operation will increase the stress on the pipes, flange connections and equipment structures inside the adsorption device, which may cause accelerated equipment wear and component fatigue damage, affecting the overall service life of the equipment. Utility Model Content

[0005] The utility model aims to solve the shortcomings existing in the background technology and provide a high-efficiency activated carbon adsorption and desorption device. In order to solve the above problems, the setting of a desorption component can reduce downtime, achieve continuous and uninterrupted treatment of exhaust gas, and improve the overall efficiency of exhaust gas treatment. The setting of a pressure relief component can reduce the stress on the equipment structure caused by excessive pressure difference and extend the overall service life of the equipment.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a high-efficiency activated carbon adsorption and desorption device, comprising: a device box, a hot air box is provided on one side of the device box, a partition plate a is provided inside the device box, a partition plate b is provided inside the device box, two pressure relief boxes are provided under the partition plate b, a desorption component provided inside the device box, which is used to improve the exhaust gas treatment efficiency, and a pressure relief component provided between the partition plate b and the pressure relief box, which is used to relieve pressure inside the device box.

[0007] Furthermore, the desorption component includes: two electric push rods arranged on the top of the device box, a hot air inlet pipe a is provided on one side of the device box, a hot air inlet pipe b is provided on one side of the device box, a dust filter is provided on one side of the two hot air boxes, and sealing plates b are provided at the bottom ends of the two electric push rods, two notches are provided on the upper surfaces of the partition plate a and the partition plate b, an activated carbon plate b is provided at the bottom of the two sealing plates b, the bottom ends of the two activated carbon plates b are connected to connecting plates, the bottoms of the two connecting plates are fixedly connected to activated carbon plates a, the bottom of the activated carbon plate a is fixedly connected to the sealing plate a, and a fan is provided between the partition plate a and the hot air box.

[0008] Furthermore, one side of the device box is connected to an air outlet pipe a, one side of the device box is connected to an air outlet pipe b, one side of the device box is connected to an air inlet pipe, and one side of the device box is connected to an exhaust pipe.

[0009] Furthermore, one end of the hot air inlet pipe a and the hot air inlet pipe b are both connected to the hot air box, and the hot air inlet pipe a and the hot air inlet pipe b are both provided with solenoid valves.

[0010] Furthermore, a plurality of heating rods are provided inside the two hot air boxes, and a hot air blower is provided on one side of the plurality of heating rods.

[0011] Furthermore, the two sealing plates b are provided with sealing rubber blocks a at the bottom, the upper and lower surfaces of the two connecting plates are provided with sealing rubber blocks b, the upper and lower surfaces of the two sealing plates a are provided with sealing rubber blocks c, and sealing rubber strips are provided on both sides of the activated carbon plate a and the activated carbon plate b.

[0012] Furthermore, the pressure relief assembly includes: two air relief holes opened on the upper surface of the partition plate b, and a pressure relief hole opened on one side of the two pressure relief boxes. Springs are provided inside the two pressure relief boxes, and sealing blocks are fixedly connected to the tops of the two springs. Sealing rings are provided on the tops of the two sealing blocks.

[0013] The utility model provides a high-efficiency activated carbon adsorption and desorption device, which has the following beneficial effects:

[0014] The utility model has the advantages that, through the setting of the desorption component, the waste gas can be treated continuously and uninterruptedly, avoiding the suspension of the production line or the interruption of waste gas treatment due to the desorption process, improving the production stability, and at the same time, it can also improve the overall efficiency of waste gas treatment and reduce downtime;

[0015] Secondly, by setting up the pressure relief component, the stress on the equipment structure caused by excessive pressure difference can be reduced, and the deformation and rupture of pipelines, flange connections, activated carbon carriers and other accessories due to pressure shock can be avoided, thereby extending the overall service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a sectional view of the overall structure of the utility model.

[0018] Figure 3 It is a cross-sectional view of the hot air box structure of the utility model.

[0019] Figure 4 This is a schematic structural diagram of the activated carbon plate a of the utility model.

[0020] Figure 5 This is a schematic diagram of the blocking block structure of the utility model.

[0021] Figure 6 For the utility model Figure 2 Enlarged view of point A in .

[0022] Figure 1-6 In: 1. Device box; 101. Electric push rod; 102. Hot air inlet pipe a; 103. Inlet pipe; 104. Hot air inlet pipe b; 105. Outlet pipe a; 106. Exhaust pipe; 107. Outlet pipe b; 2. Fan; 3. Activated carbon plate a; 301. Sealing plate a; 302. Activated carbon plate b; 303. Sealing plate b; 304. Connecting plate; 4. Hot air box; 401. Dust filter; 402. Heating rod; 403. Hot air blower; 5. Partition plate a; 6. Partition plate b; 601. Air vent; 7. Pressure relief box; 701. Pressure relief hole; 702. Spring; 703. Blocking block; 8. Notch. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0024] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.

[0025] The embodiment of the present application provides a high-efficiency activated carbon adsorption and desorption device. This high-efficiency activated carbon adsorption and desorption device can reduce downtime through the setting of a desorption component, achieve continuous and uninterrupted treatment of exhaust gas, and improve the overall efficiency of exhaust gas treatment. Through the setting of a pressure relief component, it can reduce the stress on the equipment structure caused by excessive pressure difference and extend the overall service life of the equipment. The following is a detailed description of the high-efficiency activated carbon adsorption and desorption device. It should be noted that the description order of the following embodiments is not intended to limit the preferred order of the embodiments.

[0026] The present application is described in detail below with reference to the accompanying drawings and specific implementation methods.

[0027] Example 1

[0028] See also Figure 1-6 In this embodiment, a high-efficiency activated carbon adsorption and desorption device is provided, including: a device box 1, a hot air box 4 is provided on one side of the device box 1, a partition plate a5 is provided inside the device box 1, a partition plate b6 is provided inside the device box 1, and two pressure relief boxes 7 are provided under the partition plate b6; a desorption component provided inside the device box 1, which is used to improve the exhaust gas treatment efficiency; and a pressure relief component provided between the partition plate b6 and the pressure relief box 7, which is used to relieve pressure inside the device box 1.

[0029] Among them, through the setting of the desorption component, the exhaust gas can be treated continuously and uninterruptedly, avoiding the suspension of the production line or the interruption of the exhaust gas treatment due to the desorption process, improving the production stability, and at the same time, it can also improve the overall efficiency of the exhaust gas treatment and reduce the downtime;

[0030] Secondly, by setting up the pressure relief component, the stress on the equipment structure caused by excessive pressure difference can be reduced, and the deformation and rupture of pipelines, flange connections, activated carbon carriers and other accessories due to pressure shock can be avoided, thereby extending the overall service life of the equipment.

[0031] Example 2

[0032] On the basis of Example 1, the desorption component includes: two electric push rods 101 arranged on the top of the device box 1, a hot air inlet pipe a102 is arranged on one side of the device box 1, and a hot air inlet pipe b104 is arranged on one side of the device box 1; a dust filter 401 is arranged on one side of the two hot air boxes 4; sealing plates b303 are arranged at the bottom ends of the two electric push rods 101, and two notches 8 are provided on the upper surfaces of the partition plates a5 and the partition plates b6, and activated carbon plates b302 are arranged at the bottom of the two sealing plates b303, and the bottom ends of the two activated carbon plates b302 are connected to connecting plates 304, and the bottoms of the two connecting plates 304 are fixedly connected to activated carbon plates a3, and the bottom of the activated carbon plate a3 is fixedly connected to the sealing plate a301, and a fan 2 is provided between the partition plate a5 and the hot air box 4.

[0033] Among them, one side of the device box 1 is connected to an air outlet pipe a105, one side of the device box 1 is connected to an air outlet pipe b107, one side of the device box 1 is connected to an air inlet pipe 103, and one side of the device box 1 is connected to an exhaust pipe 106; one end of the hot air inlet pipe a102 and the hot air inlet pipe b104 are both connected to the hot air box 4, and the hot air inlet pipe a102 and the hot air inlet pipe b104 are both provided with solenoid valves; multiple heating rods 402 are provided inside the two hot air boxes 4, and a hot air blower 403 is provided on one side of the multiple heating rods 402; sealing rubber blocks a are provided at the bottom of the two sealing plates b303, sealing rubber blocks b are provided on the upper and lower surfaces of the two connecting plates 304, sealing rubber blocks c are provided on the upper and lower surfaces of the two sealing plates a301, and sealing rubber strips are provided on both sides of the activated carbon plate a3 and the activated carbon plate b302.

[0034] When in use, the staff can introduce the exhaust gas into the device box 1 through the air inlet pipe 103, and the volatile organic compounds in the exhaust gas are adsorbed by the two activated carbon plates a3 in the device box 1, and then the purified gas is discharged through the exhaust pipe 106. The setting of the fan 2 can speed up the flow rate of the exhaust gas inside the device box 1, thereby improving the treatment efficiency of the exhaust gas.

[0035] In addition, the partition a5 and the partition b6 divide the interior of the device box 1 into chamber a, chamber b and chamber c, wherein chamber a is located at the top of the partition a5, chamber b is located between the partition a5 and the partition b6, and chamber c is located at the bottom of the partition b6. When the activated carbon plate b302 needs to be desorbed, the user can control the two electric push rods 101 to retract, and the two electric push rods 101 drive the sealing plate b303, the activated carbon plate b302, the activated carbon plate a3 and the sealing plate b303 to move. The sealing plate a301 moves upward until the activated carbon plate b302 moves into the cavity a, the activated carbon plate a3 moves into the cavity b, and the top ends of the connecting plate 304 and the sealing plate a301 are respectively fitted with the lower surfaces of the partition plate a5 and the partition plate b6, and then the solenoid valve on the hot air inlet pipe a102 is opened, and the heating rod 402 and the hot air blower 403 in the hot air box 4 connected to the hot air inlet pipe a102 are started to introduce hot air into the cavity a, thereby desorbing the activated carbon plate b302.

[0036] Furthermore, when it is necessary to desorb the activated carbon plate a3, the user can push the activated carbon plate b302 in the cavity b back to the cavity c through the electric push rod 101, and then open the solenoid valve on the hot air inlet pipe b104, and start the heating rod 402 and the hot air blower 403 in the hot air box 4 connected to the hot air inlet pipe b104, so as to desorb the activated carbon plate b302, thereby realizing the simultaneous desorption and adsorption and reducing equipment downtime.

[0037] In addition, a cleaning door is provided on one side of the inner wall of cavity a and cavity c, a sealing strip is provided on the cleaning door, and the cleaning door is connected to the device box 1 by bolts. After completing the desorption of the activated carbon board a3 or the activated carbon board b302, the user can open the corresponding cleaning door for cleaning.

[0038] Example 3

[0039] Based on Example 1, the pressure relief component includes: two air relief holes 601 opened on the upper surface of the partition plate b6; pressure relief holes 701 opened on one side of the two pressure relief boxes 7, and springs 702 are provided inside the two pressure relief boxes 7, and sealing blocks 703 are fixedly connected to the tops of the two springs 702, and sealing rings are provided on the tops of the two sealing blocks 703.

[0040] When the activated carbon plates a3 and b302 are saturated with adsorption, resulting in excessive air pressure inside the device box 1, the gas between the partition plate a5 and the partition plate b6 will enter the pressure relief box 7 through the air vent 601, and push the blocking block 703 to squeeze the spring 702, so that the exhaust gas enters the cavity c at the bottom of the partition plate b6 through the pressure relief hole 701, and is purified by the activated carbon plate a3 in the cavity c, and then discharged through the air outlet pipe b107, thereby achieving pressure relief and purification when the air pressure is too high.

[0041] In addition, a control panel is provided on one side of the device box 1, which can control the start and close of the electric push rod 101, the heating rod 402, the hot air blower 403, the fan 2, and the solenoid valves on the hot air inlet pipe a102 and the hot air inlet pipe b104, and the power of the device is provided by an external power supply.

[0042] The control program involved in the present utility model can be implemented by those skilled in the art according to the same or similar principles in the prior art, and this part is not the innovation of the present utility model.

[0043] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0044] The above is a detailed introduction to a high-efficiency activated carbon adsorption and desorption device provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A high-efficiency activated carbon adsorption and desorption device, characterized in that: include: A device box (1), wherein a hot gas box (4) is provided on one side of the device box (1), a partition plate a (5) is provided inside the device box (1), a partition plate b (6) is provided inside the device box (1), and two pressure relief boxes (7) are provided below the partition plate b (6); A desorption component arranged inside the device housing (1) is used to improve the exhaust gas treatment efficiency; and The pressure relief component provided between the partition plate b (6) and the pressure relief box (7) is used for relieving pressure inside the device box (1).

2. The high-efficiency activated carbon adsorption and desorption device according to claim 1 is characterized in that: The desorption component comprises: Two electric push rods (101) are arranged on the top of the device box (1), a hot air intake pipe a (102) is arranged on one side of the device box (1), and a hot air intake pipe b (104) is arranged on one side of the device box (1); A dust filter (401) provided on one side of the two hot gas boxes (4); A sealing plate b (303) is provided at the bottom end of each of the two electric push rods (101); two notches (8) are provided on the upper surfaces of the partition plate a (5) and the partition plate b (6); an activated carbon plate b (302) is provided at the bottom of each of the two sealing plates b (303); a connecting plate (304) is connected to the bottom end of each of the two activated carbon plates b (302); an activated carbon plate a (3) is fixedly connected to the bottom of each of the two connecting plates (304); a sealing plate a (301) is fixedly connected to the bottom of each of the activated carbon plates a (3); and a fan (2) is provided between the partition plate a (5) and the hot air box (4).

3. The high-efficiency activated carbon adsorption and desorption device according to claim 1 is characterized in that: One side of the device box (1) is connected to an air outlet pipe a (105), one side of the device box (1) is connected to an air outlet pipe b (107), one side of the device box (1) is connected to an air inlet pipe (103), and one side of the device box (1) is connected to an exhaust pipe (106).

4. The high-efficiency activated carbon adsorption and desorption device according to claim 2 is characterized in that: One end of the hot air inlet pipe a (102) and one end of the hot air inlet pipe b (104) are both connected to the hot air box (4), and solenoid valves are provided on the hot air inlet pipe a (102) and the hot air inlet pipe b (104).

5. The high-efficiency activated carbon adsorption and desorption device according to claim 2 is characterized in that: A plurality of heating rods (402) are provided inside the two hot air boxes (4), and a hot air blower (403) is provided on one side of the plurality of heating rods (402).

6. The high-efficiency activated carbon adsorption and desorption device according to claim 2 is characterized in that: The bottoms of the two sealing plates b (303) are each provided with a sealing rubber block a, the upper and lower surfaces of the two connecting plates (304) are each provided with a sealing rubber block b, the upper and lower surfaces of the two sealing plates a (301) are each provided with a sealing rubber block c, and both sides of the activated carbon plate a (3) and the activated carbon plate b (302) are each provided with a sealing rubber strip.

7. The high-efficiency activated carbon adsorption and desorption device according to claim 1 is characterized in that: The pressure relief assembly comprises: Two air leakage holes (601) are provided on the upper surface of the partition plate b (6); A pressure relief hole (701) is provided on one side of the two pressure relief boxes (7); a spring (702) is provided inside the two pressure relief boxes (7); a sealing block (703) is fixedly connected to the top of the two springs (702); and a sealing ring is provided on the top of the two sealing blocks (703).

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