Device for adsorbing VOCs by using activated carbon

Abstract

The utility model discloses a VOCs (volatile organic compounds) adsorption device by activated carbon, which belongs to the technical field of organic waste gas treatment and comprises a shell, a ventilation mechanism fixedly connected onto the shell, a rotating mechanism mounted on the shell, a feeding mechanism arranged at the top of the shell, and a discharging mechanism mounted on the shell. The rotating shaft is fixedly connected with three annularly and evenly arranged partition plates, the edges of the partition plates are slidably connected to the inner wall of the shell, and the partition plates divide the shell into an adsorption cavity, a storage cavity and a discharge cavity. The device has the beneficial effects that the rotating mechanism is arranged, and the interior of the shell is divided into the adsorption cavity, the storage cavity and the discharge cavity through the partition plates arranged on the rotating mechanism, so that new activated carbon is automatically supplied, invalid activated carbon is discharged, the tail gas treatment progress does not need to be paused during supply and discharge, and the tail gas treatment efficiency is greatly improved; the automation degree and the practicability are high.

Description

Technical Field

[0001] The utility model relates to the technical field of organic waste gas treatment, in particular to an activated carbon VOCs adsorption device. Background Art

[0002] 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℃ 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 for the formation of photochemical oxidants and secondary organic aerosols, and is also the main pollutant causing haze weather. Some VOCs components can also cause harm to human health. Commonly used 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. Because activated carbon has an adsorption upper limit, it is necessary to replace new activated carbon after full adsorption, and regenerate the original activated carbon to discharge the adsorbed waste gas so that it can be reused.

[0003] After searching Chinese patents and prior art, it was found that the current activated carbon adsorption treatment device still has certain problems, that is, when the activated carbon needs to be replaced, the production needs to be temporarily stopped, the equipment needs to be disassembled and the activated carbon needs to be taken out and discharged, and new activated carbon needs to be replaced manually, which is time-consuming and labor-intensive, and wastes production time and reduces efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide an activated carbon VOCs adsorption device in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] An activated carbon VOCs adsorption device comprises a shell, a ventilation mechanism is fixedly connected to the shell, a rotating mechanism is installed on the shell, a feeding mechanism is arranged on the top of the shell, and a discharging mechanism is installed on the shell. The rotating mechanism comprises a rotating shaft rotatably connected to the middle position of the shell, three annular evenly arranged partitions are fixedly connected to the rotating shaft, the edges of the partitions are slidably connected to the inner wall of the shell, and the partitions separate the shell into an adsorption chamber, a storage chamber and a discharge chamber.

[0007] Preferably, the rotating mechanism includes a fixed plate, which is fixedly connected to one side of the shell, and a motor is fixedly connected to one side of the fixed plate. The motor output shaft is fixedly connected to a worm, and a worm wheel is meshed on the worm, and the worm wheel is fixedly connected to one end of the rotating shaft.

[0008] Preferably, the feeding mechanism comprises a storage box, which is fixedly connected to the top of the shell, and a connecting bucket is fixedly connected to the bottom of the storage box, and the connecting bucket leads to the adsorption chamber position of the shell.

[0009] Preferably, a No. 1 cylinder is fixedly connected to the connecting bucket, and a push plate for preventing activated carbon from getting stuck is fixedly connected to the output end of the No. 1 cylinder.

[0010] Preferably, the ventilation mechanism includes an air inlet pipe and an air outlet pipe, the air inlet pipe and the air outlet pipe are fixedly connected to two ends of the adsorption chamber of the shell, and a detector is fixedly installed on the air outlet pipe.

[0011] Preferably, the discharge mechanism includes two connecting blocks, which are fixedly connected to the bottom of the shell, and the inner side of the connecting block is rotatably connected to a damping rotating rod, and the side of the damping rotating rod is fixedly connected to a closing plate, and the discharge chamber of the shell is provided with an opening that cooperates with the closing plate.

[0012] Preferably, the discharge mechanism includes two symmetrically arranged connecting plates, a No. 2 cylinder is fixedly connected to the bottom of the connecting plate, and a discharge plate for pushing the activated carbon toward the closing plate is fixedly connected to the output end of the No. 2 cylinder.

[0013] The beneficial effects are: a rotating mechanism is provided, and the interior of the shell is divided into an adsorption chamber, a storage chamber and a discharge chamber by a partition arranged on the rotating mechanism, so as to realize automatic supply of new activated carbon and discharge of invalid activated carbon, and there is no need to suspend the exhaust gas treatment progress during supply and discharge, which greatly improves the exhaust gas treatment efficiency, has a high degree of automation and strong practicality.

[0014] The additional technical features and advantages of the present invention will be more clearly explained in the following description, or can be understood through the specific practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0016] Figure 1 This is the first schematic diagram of an activated carbon VOCs adsorption device described in the utility model;

[0017] Figure 2 This is a second schematic diagram of an activated carbon VOCs adsorption device described in the utility model;

[0018] Figure 3 This is a rear view of an activated carbon VOCs adsorption device described in the utility model;

[0019] Figure 4 It is a left side cross-sectional view of an activated carbon VOCs adsorption device described in the utility model;

[0020] Figure 5 It is a schematic diagram of the rotating mechanism of an activated carbon VOCs adsorption device described in the utility model.

[0021] The description of the accompanying drawings is as follows: 101, shell; 102, fixing ring; 103, bracket; 104, adsorption chamber; 105, storage chamber; 106, discharge chamber; 201, air inlet pipe; 202, air outlet pipe; 203, detector; 301, fixing plate; 302, motor; 303, worm; 304, worm wheel; 305, rotating shaft; 306, partition; 401, storage box; 402, connecting bucket; 403, cylinder No. 1; 404, push plate; 501, connecting block; 502, damping rotating rod; 503, closing plate; 504, connecting plate; 505, cylinder No. 2; 506, discharge plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] like Figure 1 — Figure 5As shown, an activated carbon adsorption device for VOCs includes a shell 101, a ventilation mechanism is fixedly connected to the shell 101, a plurality of fixing rings 102 are connected to the shell 101 by bolts, a bracket 103 is welded to the bottom of the fixing ring 102, a rotating mechanism is installed on the shell 101, a feeding mechanism is arranged on the top of the shell 101, and a discharging mechanism is installed on the shell 101. The rotating mechanism includes a rotating shaft 305 rotatably connected to the middle position of the shell 101, and three annular partitions 306 are welded to the rotating shaft 305, and the edges of the partitions 306 are slidably connected to the shell 101. Connected to the inner wall of the shell 101, the partition 306 divides the shell 101 into an adsorption chamber 104, a storage chamber 105 and a discharge chamber 106. When the partition 306 rotates in the shell 101, the positions of the adsorption chamber 104, the storage chamber 105 and the discharge chamber 106 in the shell 101 remain unchanged, the ventilation mechanism is arranged at both ends of the adsorption chamber 104, the feeding mechanism is arranged above the storage chamber 105, and the discharge mechanism is installed at the position of the discharge chamber 106. The setting of the partition 306 can form the adsorption chamber 104, the storage chamber 105 and the discharge chamber 106 into an independent and closed space.

[0026] In this embodiment, the rotating mechanism includes a fixed plate 301, which is connected to one side of the shell 101 by bolts. A motor 302 is connected to one side of the fixed plate 301 by bolts. The output shaft of the motor 302 is connected to a worm 303 through a coupling. A worm wheel 304 is meshed on the worm 303. The worm wheel 304 is connected to one end of the rotating shaft 305 by bolts. When the activated carbon in the adsorption chamber 104 fails after long-term use, the motor 302 drives the worm 303 to rotate, and the worm 303 drives the worm wheel 304 to rotate 120 degrees. In this process, the activated carbon in the adsorption chamber 104 is pushed to the discharge chamber 106 position by the partition 306, and the effective activated carbon at the storage chamber 105 position is pushed to the adsorption chamber 104 position by the partition 306. In this process, there is no need to suspend the exhaust gas treatment process.

[0027] In this embodiment, the feeding mechanism includes a storage box 401, which is connected to the top of the shell 101 by bolts. The bottom of the storage box 401 is connected to a connecting bucket 402 by bolts. The connecting bucket 402 leads to the adsorption chamber 104 of the shell 101. Whenever the storage chamber 105 needs to be filled with activated carbon, the storage box 401 supplies activated carbon to the storage chamber 105 through the connecting bucket 402.

[0028] In this embodiment, a No. 1 cylinder 403 is connected to the connecting bucket 402 by bolts, and a push plate 404 for preventing activated carbon from getting stuck is connected to the output end of the No. 1 cylinder 403 by bolts. The No. 1 cylinder 403 pushes the push plate 404 to reciprocate in the connecting bucket 402 to prevent the activated carbon from getting stuck in the connecting bucket 402.

[0029] In this embodiment, the ventilation mechanism includes an air inlet pipe 201 and an air outlet pipe 202. The air inlet pipe 201 and the air outlet pipe 202 are welded to the two ends of the adsorption chamber 104 of the shell 101. A detector 203 is fixedly installed on the air outlet pipe 202. When the detector 203 detects that the treated exhaust gas is unqualified, the motor 302 will be started to automatically replace the activated carbon.

[0030] In this embodiment, the discharge mechanism includes two connecting blocks 501, which are welded to the bottom of the shell 101. A damping rotating rod 502 is rotatably connected to the inner side of the connecting block 501. A closing plate 503 is welded to the side of the damping rotating rod 502. An opening that cooperates with the closing plate 503 is provided at the position of the discharge chamber 106 of the shell 101. When the inactivated activated carbon is delivered to the discharge chamber 106, the closing plate 503 is opened to discharge the inactivated activated carbon.

[0031] In this embodiment, the discharge mechanism includes two symmetrically arranged connecting plates 504, the bottom of the connecting plate 504 is connected to a No. 2 cylinder 505 by bolts, and the output end of the No. 2 cylinder 505 is connected to a discharge plate 506 for pushing the activated carbon to the closed plate 503 by bolts. The No. 2 cylinders 505 on both sides push the discharge plate 506 to move inward, pushing the activated carbon to the position of the closed plate 503 to completely discharge the activated carbon.

[0032] Working principle: When the device is in use, in the initial state, there is no activated carbon in the housing 101. First, the activated carbon is supplied to the storage chamber 105 of the housing 101 through the storage box 401, and then the motor 302 is started. The motor 302 drives the worm 303 to rotate, and the worm 303 drives the worm wheel 304 to rotate 120 degrees. In this process, the effective activated carbon at the position of the storage chamber 105 is pushed to the position of the adsorption chamber 104 by the partition 306, and then the storage box 401 continues to supply activated carbon to the storage chamber 105. At this time, the exhaust gas is discharged from the intake pipe 201 into the adsorption chamber 104, and the exhaust gas and impurities are adsorbed by the activated carbon through the adsorption chamber 104 and then discharged from the outlet pipe 202. Discharge, the detector 203 can detect the adsorption effect. When the detector 203 detects that the treated exhaust gas is unqualified, the motor 302 will be started, and the activated carbon in the adsorption chamber 104 will be pushed to the discharge chamber 106 position by the partition 306, and the effective activated carbon at the storage chamber 105 position will be pushed to the adsorption chamber 104 position by the partition 306. When the inactivated activated carbon is delivered to the discharge chamber 106, the staff opens the closing plate 503, and at the same time, the No. 2 cylinder 505 on both sides pushes the discharge plate 506 inward, pushing the activated carbon to the closing plate 503 position to completely discharge the activated carbon. In this way, the activated carbon adsorbs VOCs.

[0033] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An activated carbon VOCs adsorption device, comprising a housing (101), wherein a ventilation mechanism is fixedly connected to the housing (101), characterized in that: The shell (101) is provided with a rotating mechanism, the top of the shell (101) is provided with a feeding mechanism, and the shell (101) is provided with a discharging mechanism, the rotating mechanism comprises a rotating shaft (305) rotatably connected to the middle position of the shell (101), three annular partitions (306) evenly arranged are fixedly connected to the rotating shaft (305), the edge of the partition (306) is slidably connected to the inner wall of the shell (101), and the partition (306) divides the shell (101) into an adsorption chamber (104), a storage chamber (105) and a discharge chamber (106).

2. The activated carbon VOCs adsorption device according to claim 1, characterized in that: The rotating mechanism comprises a fixed plate (301), wherein the fixed plate (301) is fixedly connected to one side of the housing (101), a motor (302) is fixedly connected to one side of the fixed plate (301), a worm (303) is fixedly connected to the output shaft of the motor (302), a worm wheel (304) is meshed on the worm (303), and the worm wheel (304) is fixedly connected to one end of the rotating shaft (305).

3. The activated carbon VOCs adsorption device according to claim 1, characterized in that: The feeding mechanism comprises a storage box (401), wherein the storage box (401) is fixedly connected to the top of the shell (101), and a connecting bucket (402) is fixedly connected to the bottom of the storage box (401), wherein the connecting bucket (402) leads to the adsorption chamber (104) of the shell (101).

4. The activated carbon VOCs adsorption device according to claim 3, characterized in that: The connecting bucket (402) is fixedly connected to a No. 1 cylinder (403), and the output end of the No. 1 cylinder (403) is fixedly connected to a push plate (404) for preventing activated carbon from getting stuck.

5. The activated carbon VOCs adsorption device according to claim 1, characterized in that: The ventilation mechanism comprises an air inlet pipe (201) and an air outlet pipe (202); the air inlet pipe (201) and the air outlet pipe (202) are fixedly connected to two ends of the adsorption chamber (104) of the shell (101); and a detector (203) is fixedly mounted on the air outlet pipe (202).

6. The activated carbon VOCs adsorption device according to claim 1, characterized in that: The discharge mechanism comprises two connection blocks (501), wherein the connection blocks (501) are fixedly connected to the bottom of the shell (101), a damping rotating rod (502) is rotatably connected inside the connection blocks (501), a closing plate (503) is fixedly connected to the side of the damping rotating rod (502), and an opening that cooperates with the closing plate (503) is provided at the position of the discharge chamber (106) of the shell (101).

7. The activated carbon VOCs adsorption device according to claim 6, characterized in that: The discharge mechanism comprises two symmetrically arranged connecting plates (504), the bottom of the connecting plate (504) is fixedly connected to a No. 2 cylinder (505), and the output end of the No. 2 cylinder (505) is fixedly connected to a discharge plate (506) for pushing the activated carbon toward the closing plate (503).

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