A rotary organic waste gas adsorption and concentration device for VOC waste gas treatment

Abstract

The present invention discloses a rotary organic waste gas adsorption and concentration device for VOC waste gas treatment, which relates to the technical field of organic waste gas treatment, and comprises a box body, in which an adsorption and desorption bed layer, an isolation mechanism and a rotating mechanism are arranged; the adsorption and desorption bed layer is fixed in the box body through a mounting frame; the isolation mechanism comprises a central axis, an isolation member, an upper cover plate and a lower cover plate, and the rotating mechanism comprises a motor, a driving gear and a driven gear. The present invention performs the adsorption and desorption treatment process synchronously, effectively utilizes the space in the device, and improves the efficiency of gas adsorption and desorption.

Description

Technical Field

[0001] The invention relates to the technical field of organic waste gas treatment, and in particular to a rotary organic waste gas adsorption and concentration device for VOC waste gas treatment. Background Art

[0002] Adsorption is one of the common and efficient waste gas treatment measures. The adsorption material has a certain adsorption capacity. Desorption and regeneration of the adsorbent can greatly reduce costs. At the same time, during the adsorption and desorption process, the difficult-to-treat large air volume and low-concentration waste gas can be concentrated into easy-to-treat small air volume and high-concentration waste gas. Water vapor desorption and hot air desorption are the main desorption methods, and organic waste gas may contain high temperature and humidity. Therefore, the adsorption method has high requirements for the high temperature resistance and hydrophobicity of the adsorption material and the adsorption device. The rotor is one of the effective means to achieve the integrated adsorption and desorption of organic waste gas. The traditional adsorption rotor divides the sealing system into an adsorption zone and a desorption zone, and realizes adsorption and desorption simultaneously through the rotation of the rotor. Therefore, the space utilization rate is not high, and the adsorption and desorption are carried out separately, and its efficiency is also insufficient. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a rotary organic waste gas adsorption and concentration device for VOC waste gas treatment, which performs the adsorption and desorption treatment processes simultaneously, effectively utilizes the space in the device, and improves the efficiency of gas adsorption and desorption.

[0004] To achieve the above object, the technical solution of the present invention is as follows:

[0005] A rotary organic waste gas adsorption and concentration device for VOC waste gas treatment, comprising a box body, in which an adsorption and desorption bed layer, an isolation mechanism and a rotating mechanism are arranged;

[0006] The box body is provided with an exhaust gas inlet, an exhaust gas outlet, a desorption logistics inlet and a desorption logistics outlet, and the exhaust gas inlet is arranged below the exhaust gas outlet;

[0007] The adsorption and desorption bed layer is fixed in the box through a mounting frame;

[0008] The isolation mechanism comprises a central axis, an isolation member, an upper cover plate and a lower cover plate, wherein the central axis vertically penetrates the adsorption and desorption bed layer, the isolation member gap is sleeved on the central axis and the isolation mechanism has a plurality of partitions distributed along the circumferential direction, the adsorption and desorption bed layer is divided into a plurality of desorption zones by the partitions, and the desorption zones are provided with adsorption materials; an upper connecting pipe is sealedly installed at the upper end of the central axis, a lower connecting pipe is sealedly installed at the lower end of the central axis, the upper cover plate is plug-connected to the upper connecting pipe, the lower cover plate is plug-connected to the lower connecting pipe, the upper cover plate and the lower cover plate can cover at least one of the desorption zones, and the upper cover plate and the lower cover plate have a guide hole structure;

[0009] The rotating mechanism comprises a motor, a driving gear and a driven gear, the output shaft of the motor is equipped with the driving gear, the middle shaft is equipped with the driven gear, the driven gear is meshed with the driving gear to drive the upper cover plate and the lower cover plate to rotate synchronously;

[0010] The desorption logistics inlet is communicated with the upper connecting pipe, and the desorption logistics outlet is communicated with the lower connecting pipe.

[0011] The rotary organic waste gas adsorption and concentration device for VOC waste gas treatment as described above further includes a sealing mechanism, which includes an upper pressure ring, a lower pressure ring, a first pressure ring cylinder, a second pressure ring cylinder, a first cover plate cylinder and a second cover plate cylinder, the first pressure ring cylinder is used to control the sealing fit between the upper pressure ring and the upper cover plate, the second pressure ring cylinder is used to control the sealing fit between the lower pressure ring and the lower cover plate, the first cover plate cylinder is used to control the sealing fit between the upper cover plate and the isolation piece, and the second cover plate cylinder is used to control the sealing fit between the lower cover plate and the isolation piece.

[0012] As described above, the rotary organic waste gas adsorption and concentration device for VOC waste gas treatment, further, a sealing ring is provided between the adsorption and desorption bed layer and the mounting frame.

[0013] As described above, in the rotary organic waste gas adsorption and concentration device for VOC waste gas treatment, further, the adsorption material is a hydrophobic adsorption resin.

[0014] As described above, in the rotary organic waste gas adsorption and concentration device for VOC waste gas treatment, further, the adsorption and desorption bed layer is a corrugated molded body.

[0015] As described above, in the rotary organic waste gas adsorption and concentration device for VOC waste gas treatment, further, the thickness of the partition gradually becomes thinner along the radial direction of the central axis, and the upper and lower sides of the partition are provided with reinforcement edges.

[0016] As described above, the rotary organic waste gas adsorption and concentration device for VOC waste gas treatment, further, the rotation mode of the rotating mechanism is intermittent or continuous.

[0017] As described above, in the rotary organic waste gas adsorption and concentration device for VOC waste gas treatment, further, the material of the sealing ring includes silicone or tetrafluoroethylene.

[0018] As described above, in the rotary organic waste gas adsorption and concentration device for VOC waste gas treatment, further, the types of gears of the driving gear and the driven gear include spur gears, helical gears or herringbone gears.

[0019] As described above, the rotary organic waste gas adsorption and concentration device for VOC waste gas treatment further comprises eight desorption zones, and the upper cover plate and the lower cover plate cover one of the desorption zones.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention organically integrates the adsorption and desorption processes in the device, realizes innovative rotational adsorption and desorption and sealing methods. Sealing is an important part of waste gas treatment. The present invention also uses a cylinder to adjust the sealing structure inside the device to ensure the efficiency of adsorption and desorption. It has excellent structural stability and safety, can adapt to various complex process environments, improves desorption efficiency and increases concentration multiples. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the main structure of an embodiment of an organic waste gas adsorption and concentration device of the present invention;

[0022] Figure 2 Schematic diagram of the internal structure of the box of an embodiment of the organic waste gas adsorption and concentration device of the present invention;

[0023] Figure 3 It is a schematic diagram of some parts of the rotating structure of the organic waste gas adsorption and concentration device embodiment of the present invention;

[0024] Figure 4 Schematic diagram of the structure of an isolating element according to an embodiment of the present invention.

[0025] Among them, 1. box body; 101. exhaust gas inlet; 102. exhaust gas outlet; 103. desorption logistics inlet; 104. desorption logistics outlet; 105. air intake pipe; 106. universal joint; 2. adsorption desorption bed; 201. mounting frame; 301. middle axis; 302. isolation piece; 3021. partition; 3022. reinforcing edge; 303. upper cover plate; 304. lower cover plate; 305. upper connecting pipe; 306. lower connecting pipe; 307. transmission bearing; 401. motor; 402. driving gear; 403. driven gear; 501. upper pressure ring; 502. lower pressure ring; 503. first pressure ring cylinder; 504. second pressure ring cylinder; 505. first cover plate cylinder; 506. second cover plate cylinder; 507. upper end sealing ring; 508. lower end sealing ring; 6. cooling fan; 7. alarm. DETAILED DESCRIPTION

[0026] The content of the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] Example:

[0028] See also Figures 1 to 4A rotary organic waste gas adsorption and concentration device for VOC waste gas treatment includes a housing 1, in which an adsorption and desorption bed 2, an isolation mechanism and a rotating mechanism are arranged. The housing 1 is provided with a waste gas inlet 101, a waste gas outlet 102, a desorption logistics inlet 103 and a desorption logistics outlet 104. The waste gas inlet 101 is arranged below the waste gas outlet 102 to realize that the organic waste gas is automatically discharged from the waste gas outlet 102 above through the adsorption and desorption bed 2. Furthermore, a control panel, an alarm 7 and a cooling fan 6 are also provided on the outside of the housing 1. The adsorption and desorption bed 2 is fixed in the housing 1 by a mounting frame 201. The isolation mechanism includes a central axis 301, an isolation member 302, an upper cover plate 303 and a lower cover plate 304. The central axis 301 vertically penetrates the adsorption and desorption bed 2. The isolation member 302 is sleeved on the central axis 301 to achieve that the isolation member 302 does not rotate synchronously with the central axis 301. A transmission bearing 307 is provided inside the central axis 301. The isolation member 302 has a plurality of partitions 3021 distributed along the circumference. The adsorption and desorption bed 2 is divided into a plurality of desorption zones by the partitions 3021. The desorption zones are provided with adsorption materials. The adsorption materials are preferably hydrophobic adsorption resins that are resistant to high temperatures, acids and alkalis. Preferably, the adsorption and desorption bed 2 is a corrugated molded body that can ensure the exhaust gas adsorption effect. An upper connecting tube 305 is sealedly installed at the upper end of the central axis 301, and a lower connecting tube 306 is sealedly installed at the lower end of the central axis 301. The upper cover plate 303 is plug-connected to the upper connecting tube 305, and the lower cover plate 304 is plug-connected to the lower connecting tube 306. The plug-in connection is mainly to guide the fluid-like desorbed material to smoothly enter the upper cover plate 303 and the lower cover plate 304. The upper cover plate 303 and the lower cover plate 304 can cover at least one desorption area, and the upper cover plate 303 and the lower cover plate 304 have a guide hole structure. The guide hole structure is used to guide the desorbed material, which is generally in the form of a fluid. The guide hole structure can be realized by using a number of thin tubes, and the number of covered action areas is selected according to the required adsorption and desorption ratio. The rotating mechanism includes a motor 401, a driving gear 402 and a driven gear 403. The motor 401 can be a common stepping motor 401 or a servo motor 401. The output shaft of the motor 401 is equipped with a driving gear 402, and the middle shaft 301 is equipped with a driven gear 403. The driven gear 403 is meshed with the driving gear 402 to drive the middle shaft 301 to rotate, and further realizes the synchronous rotation of the upper cover plate 303 and the lower cover plate 304 with the middle shaft 301. The desorption logistics inlet 103 is connected to the upper connecting pipe 305 through the air intake pipe 105 and the universal joint 106, and the desorption logistics outlet 104 is also connected to the lower connecting pipe 306 through the same connector. The gear types of the driving gear 402 and the driven gear 403 include spur gears, helical gears or herringbone gears.

[0029] The working principle of the organic waste gas adsorption concentration device is as follows: during operation, the waste gas inlet 101, the waste gas outlet 102, the desorption logistics inlet 103 and the desorption logistics outlet 104 are kept open, and the organic waste gas is sucked from the waste gas inlet 101 to enter through the adsorption and desorption bed layer 2. In this embodiment, the number of active areas is eight, and the upper cover plate 303 and the lower cover plate 304 cover the same active area. This number is set as a preferred solution for multiple tests, which can take into account the efficiency of adsorption and desorption and the size of the structure. The active area covered by the upper cover plate 303 and the lower cover plate 304 is the desorption area, and the remaining active areas are the adsorption areas. Therefore, the treatment path of the organic waste gas is: entering from the waste gas inlet 101, passing through the 7 adsorption areas of the adsorption bed, and exiting from the waste gas outlet 102. The processing path of the desorption logistics is: entering from the desorption logistics inlet 103, passing through the upper connecting pipe 305 and the upper cover plate 303, passing through the desorption zone of the adsorption bed, and then passing through the lower cover plate 304 and exiting through the desorption logistics outlet 104, wherein the desorption zone and the adsorption zone change with the rotation of the upper cover plate 303 and the lower cover plate 304. When stopping, first close the exhaust gas inlet 101 and the exhaust gas outlet 102, and then close the desorption logistics inlet 103 and the desorption logistics outlet 104. It can be understood that in this embodiment, the conversion of the desorption zone and the adsorption zone is achieved by rotating the upper cover plate 303 and the lower cover plate 304 while the isolation member 302 does not rotate. Those skilled in the art can also realize the conversion of the desorption zone and the adsorption zone by having a speed difference between the rotation of the upper cover plate 303 and the lower cover plate 304 and the rotation of the isolation member 302, or by rotating the upper cover plate 303 and the lower cover plate 304 while the isolation member 302 does not rotate to realize the conversion of the desorption zone and the adsorption zone. The rotation mode of the rotating mechanism is intermittent or continuous.

[0030] Furthermore, it also includes a sealing mechanism, which includes an upper pressure ring 501, a lower pressure ring 502, a first pressure ring cylinder 503, a second pressure ring cylinder 504, a first cover plate cylinder 505 and a second cover plate cylinder 506. The first pressure ring cylinder 503 is used to control the sealing fit between the upper pressure ring 501 and the upper cover plate 303, the second pressure ring cylinder 504 is used to control the sealing fit between the lower pressure ring 502 and the lower cover plate 304, the first cover plate cylinder 505 is used to control the sealing fit between the upper cover plate 303 and the isolation piece 302, and the second cover plate cylinder 506 is used to control the sealing fit between the lower cover plate 304 and the isolation piece 302. In this embodiment, the upper pressure ring 501 is used to ensure that the upper cover plate 303 is sealed and fitted with the upper end surface of the mounting frame 201, so as to ensure that the exhaust gas will not leak out. Therefore, the upper pressure ring 501 is controlled by four first pressure ring cylinders 503 to control the gap between the upper cover plate 303 and the upper end surface of the mounting frame 201. The working principle of the lower pressure ring 502 is the same as that of the upper pressure ring 501. The first cover plate cylinder 505 can adjust the sealing of the upper connecting tube 305 and adjust the gap between the upper cover plate 303 and the isolation member 302 by squeezing the upper connecting tube 305 upward or downward, so as to ensure that the exhaust gas will not leak out. The working principle of the second cover plate cylinder 506 is the same as that of the first cover plate cylinder 505. In order to ensure the sealing effect of the installation, sealing rings are provided between the adsorption and desorption bed 2 and the mounting frame 201, which are the upper end sealing ring 507 and the lower end sealing ring 508, and the sealing ring material includes silicone or tetrafluoroethylene.

[0031] Furthermore, the thickness of the partition 3021 gradually tapers along the radial direction of the central axis 301, and the upper and lower sides of the partition 3021 are provided with reinforcement edges 3022, which can reduce the volume required for the partition 3021 while optimizing the stress of the partition 3021. At the same time, the reinforcement edge 3022, which is wider than the partition 3021, can fix the adsorption material.

[0032] The present invention can organically integrate the adsorption and desorption processes within the device, realizing innovative rotational adsorption and desorption and sealing methods. Sealing is an important part of waste gas treatment. The present invention also uses a cylinder to adjust the sealing structure inside the device to ensure the efficiency of adsorption and desorption. It has excellent structural stability and safety, can adapt to various complex process environments, improve desorption efficiency and increase concentration multiples.

[0033] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable ordinary technicians in the field to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made based on the essence of the content of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotary organic waste gas adsorption and concentration device for VOC waste gas treatment, characterized in that: It comprises a box body, in which an adsorption and desorption bed layer, an isolation mechanism and a rotating mechanism are arranged; The box body is provided with an exhaust gas inlet, an exhaust gas outlet, a desorption logistics inlet and a desorption logistics outlet, and the exhaust gas inlet is arranged below the exhaust gas outlet; The adsorption and desorption bed is fixed in the box through a mounting frame; a sealing ring is provided between the adsorption and desorption bed and the mounting frame; the adsorption and desorption bed is a corrugated molded body; The isolation mechanism comprises a central axis, an isolation member, an upper cover plate and a lower cover plate, wherein the central axis vertically penetrates the adsorption and desorption bed layer, the isolation member gap is sleeved on the central axis and the isolation mechanism has a plurality of partitions distributed along the circumferential direction, the thickness of the partition plate gradually becomes thinner along the radial direction of the central axis, and the upper and lower sides of the partition plate are provided with reinforcement edges; the adsorption and desorption bed layer is divided into a plurality of action areas by the partition plate, and the action areas are provided with adsorption materials; the adsorption materials are hydrophobic adsorption resins; an upper connecting pipe is sealedly installed at the upper end of the central axis, and a lower connecting pipe is sealedly installed at the lower end of the central axis, the upper cover plate is plug-connected to the upper connecting pipe, and the lower cover plate is plug-connected to the lower connecting pipe, the upper cover plate and the lower cover plate can cover at least one of the action areas, and the upper cover plate and the lower cover plate have a guide hole structure; The rotating mechanism comprises a motor, a driving gear and a driven gear, the output shaft of the motor is equipped with the driving gear, the middle shaft is equipped with the driven gear, the driven gear is meshed with the driving gear to drive the upper cover plate and the lower cover plate to rotate synchronously; The desorption logistics inlet is connected to the upper connecting pipe, and the desorption logistics outlet is connected to the lower connecting pipe; It also includes a sealing mechanism, which includes an upper pressure ring, a lower pressure ring, a first pressure ring cylinder, a second pressure ring cylinder, a first cover plate cylinder and a second cover plate cylinder, the first pressure ring cylinder is used to control the sealing fit between the upper pressure ring and the upper cover plate, the second pressure ring cylinder is used to control the sealing fit between the lower pressure ring and the lower cover plate, the first cover plate cylinder is used to control the sealing fit between the upper cover plate and the isolation piece, and the second cover plate cylinder is used to control the sealing fit between the lower cover plate and the isolation piece.

2. The rotary organic waste gas adsorption and concentration device for VOC waste gas treatment according to claim 1 is characterized in that: The rotation mode of the rotating mechanism is intermittent or continuous.

3. The rotary organic waste gas adsorption and concentration device for VOC waste gas treatment according to claim 1 is characterized in that: The material of the sealing ring includes silicone or tetrafluoroethylene.

4. The rotary organic waste gas adsorption and concentration device for VOC waste gas treatment according to claim 1 is characterized in that: The types of gears of the driving gear and the driven gear include spur gears, helical gears or herringbone gears.

5. The rotary organic waste gas adsorption and concentration device for VOC waste gas treatment according to claim 1 is characterized in that: The number of the active areas is eight, and the upper cover plate and the lower cover plate cover one active area.

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