Activated carbon adsorber for chemical industry

Abstract

The invention provides an activated carbon adsorber for chemical engineering, and relates to the technical field of activated carbon adsorbers for chemical engineering, the activated carbon adsorber for chemical engineering comprises an adsorption shell and a butt joint device, the side walls of the two ends of the adsorption shell are fixedly communicated with connecting pipes, and the surface of one connecting pipe is provided with a smoke inlet pipe by means of the butt joint device; a smoke exhaust pipe is installed on the surface of the other connecting pipe through a butt joint device, the smoke inlet pipe and the smoke exhaust pipe are located at the two ends of the adsorption shell correspondingly, and a plurality of filtering blocks are arranged on the inner wall of the adsorption shell. The problems that in the process of operating and using the chemical activated carbon adsorber, a pipeline flange and a shell end cover need to be frequently disassembled, and heavy activated carbon filter blocks need to be manually carried, aligned and installed, so that the maintenance work is time-consuming and labor-consuming, the economical efficiency is poor, and the maintenance cost is high are solved. And gas leakage or filter layer displacement is easily caused by assembly errors, so that the purification efficiency and the operation reliability of the adsorber are seriously reduced.

Description

Technical Field

[0001] This invention relates to the field of activated carbon adsorbers for chemical applications, and more particularly to an activated carbon adsorber for chemical applications. Background Technology

[0002] In the chemical industry, activated carbon adsorbers are widely used for the removal of gaseous and liquid pollutants, particularly playing a crucial role in treating volatile organic compounds (VOCs), toxic and harmful gases, odorous substances, oil stains, and wastewater. With increasingly stringent environmental protection regulations and continuously improving industrial emission standards, chemical enterprises have a growing demand for waste gas and wastewater treatment, leading to the widespread application of activated carbon adsorbers as a highly efficient and economical pollution control technology.

[0003] Existing technologies, such as the invention with publication number CN120132535A, disclose an activated carbon chemical tail gas adsorption device. This patent includes a purification platform with adsorption chambers evenly installed on it. A purification temperature control device is connected to the adsorption chambers and is located below the purification platform. A guide pipe is fixedly connected to the upper end of the adsorption chamber. In this design, when the chemical tail gas is transported to the adsorption chamber through the guide pipe, the curved surface design of the dispersing blades causes the dispersing blades to slowly rotate in the middle of the adsorption chamber when the gas is blown onto the curved surface of the dispersing blades. Through the rotation of the dispersing blades, a very important dispersion effect is played on the purification of the chemical tail gas. It can evenly diffuse the chemical gas with a certain flow rate into the entire space of the adsorption chamber. In this way, when the gas comes into contact with the activated carbon block, the problem of uneven purification can be avoided, thereby preventing the activated carbon block from being damaged or its efficiency reduced due to excessive local purification pressure.

[0004] During the operation of activated carbon adsorbers for chemical use, there will be situations where it is necessary to frequently disassemble pipe flanges and shell end caps, and manually lift, align and install heavy activated carbon filter blocks. This leads to time-consuming and labor-intensive maintenance work, poor economic efficiency, and is also prone to gas leakage or filter layer displacement due to assembly errors, which seriously reduces the purification efficiency and operational reliability of the adsorber. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies in the operation of activated carbon adsorbers for chemical use, which require frequent disassembly of pipe flanges and shell end caps, as well as manual lifting, alignment, and installation of heavy activated carbon filter blocks. This results in time-consuming, labor-intensive, and uneconomical maintenance, and is also prone to gas leakage or filter layer displacement due to assembly errors, which seriously reduces the purification efficiency and operational reliability of the adsorber.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a chemical activated carbon adsorber, comprising an adsorption shell and a docking device, wherein connecting pipes are fixedly connected to both end sidewalls of the adsorption shell, an inlet pipe is installed on the surface of one of the connecting pipes via the docking device, and an exhaust pipe is installed on the surface of the other connecting pipe via the docking device. The inlet pipe and the exhaust pipe are respectively located at both ends of the adsorption shell, and a plurality of filter blocks are provided on the inner wall of the adsorption shell, the cross-sectional dimensions of the filter blocks being adapted to the cross-sectional dimensions of the adsorption shell. The docking device includes a connecting pipe, one end of which is fixedly connected to one end of the exhaust pipe. The connecting pipe is slidably inserted into the inner wall of the connecting pipe. A slot is formed on the arc surface of the connecting pipe. A plurality of inlay slots are evenly formed on the arc surface of the connecting pipe. A top bead abuts against the inner wall of the inlay slot. The arc surface of the top bead engages with the inner wall of the slot. A rotating ring is threaded onto the arc surface of the connecting pipe. A limiting ring is rotatably connected to the side of the rotating ring near the top bead. The inner wall of the limiting ring is slidably connected to the arc surface of the connecting pipe.

[0007] The aforementioned components achieve the following effects: By incorporating an adsorption housing with connecting pipes and using a specialized docking device to connect the inlet and outlet pipes, rapid installation and separation of the pipelines are achieved, facilitating the overall assembly and disassembly of the adsorber or pipeline maintenance. The adsorption housing contains multiple filter blocks with matching cross-sectional dimensions, ensuring uniform airflow through the activated carbon layer and improving adsorption efficiency. The docking device's specific design enables rapid locking and unlocking at the connection points, while also providing basic functions such as preventing detachment and sealing.

[0008] Preferably, the cross-section of the limiting ring is inclined, and the bottom surface of the limiting ring abuts against the arc surface of the top bead.

[0009] The effect achieved by the above components is that the inclined limiting ring, when driven axially by the rotating ring, can effectively squeeze or release the top ball towards the center, thereby achieving the locking and unlocking of the connecting pipe in a more effortless and reliable manner.

[0010] Preferably, a limiting frame is fixedly connected to the inner wall surface of the limiting ring at the position corresponding to the top bead, the cross-sectional dimensions of the limiting frame are adapted to the cross-sectional dimensions of the top bead, and the top bead is a stainless steel bead.

[0011] The aforementioned components achieve the following effects: the limiting frame prevents the top ball from completely falling out of the insert groove when not clamped by the limiting ring, thus avoiding part loss and facilitating assembly. Specifying the top ball as a stainless steel ball utilizes the hardness, wear resistance, and corrosion resistance of stainless steel.

[0012] Preferably, a sealing ring is fixedly connected to the inner wall of the connecting pipe and the connecting tube on the side close to each other, and the sealing ring is a rubber ring.

[0013] The aforementioned components achieve the following effects: improved sealing performance at pipe connections, preventing leakage of harmful gases. By installing a rubber sealing ring at the joint between the butt joint and the connecting pipe, the elastic deformation of the rubber is used to fill the microscopic gaps on the contact surface, thereby ensuring airtightness of the connection while achieving rapid docking.

[0014] Preferably, the circular arc surface of the rotating ring is provided with a plurality of anti-slip grooves, and the plurality of anti-slip grooves are evenly distributed on the surface of the rotating ring.

[0015] The effect achieved by the above-mentioned components is that the anti-slip grooves increase the friction on the surface of the rotating ring, making it easier for operators to tighten or loosen the rotating ring and less prone to slipping. This is especially true when wearing gloves or with wet hands, which improves the operating experience and efficiency.

[0016] Preferably, a limiting device is provided on the inner wall of the adsorption shell corresponding to the position of the filter block. The limiting device includes a placement frame, the surface of which is inserted into the inner wall surface of the adsorption shell, and the inner wall of the placement frame is inserted into the surface of the filter block. Connecting grooves are formed on the four corner surfaces of the placement frame, and the cross-section of the connecting grooves is "L". Auxiliary grooves are formed on the surface of the placement frame corresponding to the two ends of the connecting grooves. A positioning rod is threaded through the connecting grooves and auxiliary grooves when they are close to each other. One end of the positioning rod is fixedly connected to a rotating shaft, which is located on the inner wall of the auxiliary groove. The arc surfaces of the two positioning rods are threaded to the same positioning frame. Positioning grooves are formed on the four corner surfaces of the filter block, and the positioning frame is inserted into the inner walls of the positioning grooves and connecting grooves.

[0017] The aforementioned components achieve the following effect: the filter block is supported by the placement frame, and a reliable mechanical locking structure is formed by the cooperation of the sliding positioning frame, positioning rod, positioning groove on the filter block, and L-shaped connecting groove on the placement frame. This device ensures that the filter block remains stable during equipment operation, avoiding a decrease in adsorption efficiency or equipment damage caused by filter media displacement.

[0018] Preferably, a base plate is fixedly connected to each of the four corners of the bottom end of the placement frame, and the surface of the base plate abuts against the surface of the filter block.

[0019] The effect achieved by the above components is that the base plate directly abuts against the lower surface of the filter block, which can evenly support the weight of the filter block and prevent it from sinking or tilting due to gravity or vibration, thus further ensuring the accurate and stable installation position of the filter block in the placement frame.

[0020] Preferably, a positioning device is provided on the upper surface of the adsorption shell and the upper surface of the placement frame. The positioning device includes a top plate and a mounting plate. The lower surface of the top plate is fixedly connected to the upper surface of the placement frame. A pull rod is fixedly connected to both ends of the top plate. The pull rod has a "U" shaped cross-section. Fixing grooves are provided on both sides of the top plate. A fixing post is fixedly connected to the surface of the adsorption shell at the position corresponding to the fixing groove. The mounting plate has a "Z" shaped cross-section. A moving hole is provided on the bottom surface of the mounting plate. The moving hole has a vertical cross-section. The arc surface of the fixing post is slidably connected to the inner wall of the moving hole. One end of the mounting plate is inserted into the inner wall of the fixing groove. An installation shaft is threadedly connected to the arc surface of the fixing post.

[0021] The aforementioned components achieve the following effect: enabling the placement frame, along with its internal filter blocks, to be quickly and reliably installed and secured within the adsorption housing. Through the coordination of the top plate, pull rod, fixing column, Z-shaped mounting plate, and mounting shaft, the operator can accurately position and lock the entire filter module onto the adsorption housing using simple lifting, moving, and tightening actions. This greatly facilitates the replacement and maintenance of the filter blocks, improving the maintainability of the equipment.

[0022] Preferably, the arc surface of the fixing column is fitted with a washer, and the upper surface of the washer abuts against the lower surface of the mounting shaft.

[0023] The effect achieved by the above components is that the washer is placed below the mounting shaft, which can evenly distribute the pressure generated when the mounting shaft is tightened, and prevent the pressure from concentrating and damaging the surface of the mounting plate or the fixing column.

[0024] Preferably, the surface of the filter block has a plurality of filter holes, the cross-section of the filter holes is "S" shaped, and the filter block is an activated carbon block.

[0025] The effect achieved by the above-mentioned components is that the "S"-shaped filter holes can significantly extend the flow path of flue gas in the activated carbon block, increase the contact time and contact area between flue gas and activated carbon, and thus greatly improve the adsorption efficiency.

[0026] Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1. In this invention, a docking device enables rapid connection and separation between the smoke inlet pipe, the smoke outlet pipe, and the adsorption housing. This device utilizes a rotating ring to drive an inclined limiting ring, thereby squeezing or releasing a stainless steel top ball, causing it to engage or disengage from the slot of the docking pipe, achieving one-button locking and unlocking, making operation extremely simple and labor-saving. Simultaneously, a rubber sealing ring at the connection ensures airtightness, effectively preventing the leakage of harmful gases, while the anti-slip groove on the rotating ring further enhances operational convenience and reliability. Overall, this design significantly improves the efficiency of equipment installation, disassembly, and maintenance, and enhances operational safety.

[0027] 2. In this invention, the problem of filter blocks easily loosening and shifting within the housing is effectively solved by setting a limiting device. This device uses a placement frame to support the filter block, and utilizes a sliding positioning frame that precisely engages with the positioning groove on the filter block and the "L"-shaped connecting groove on the placement frame to form a stable mechanical lock. The base plate provides uniform bottom support for the filter block. This design ensures that the filter block remains absolutely stable when subjected to airflow impact or equipment vibration, avoiding decreased adsorption efficiency, airflow short circuits, or equipment damage caused by filter media displacement, thus guaranteeing the stability and high efficiency of the adsorption process.

[0028] 3. In this invention, a positioning device enables rapid and precise positioning and fixation of the filter block placement frame within the adsorption housing. The operator only needs to pull the lever, move the "Z"-shaped mounting plate, and tighten the mounting shaft to complete the installation and locking of the entire filter module, and vice versa. The gasket design ensures a more even distribution of locking force. This device simplifies the complex internal installation process into a simple external operation, making filter block replacement and maintenance exceptionally convenient. It significantly reduces the time, labor, and technical costs of maintenance, greatly improving the maintainability and economic efficiency of the equipment. Attached Figure Description

[0029] Figure 1 This invention provides a three-dimensional structural schematic diagram of an activated carbon adsorber for chemical applications; Figure 2 This invention provides a schematic diagram of the internal partial structure of a three-dimensional activated carbon adsorber for chemical applications. Figure 3 This invention provides a schematic diagram of the docking device for an activated carbon adsorber used in chemical industry; Figure 4 This invention provides a partial cross-sectional structural diagram of the docking device for an activated carbon adsorber used in chemical industry; Figure 5 This invention provides an enlarged structural schematic diagram of point A of an activated carbon adsorber for chemical applications; Figure 6This invention provides a schematic diagram of the structure of a placement frame for an activated carbon adsorber used in chemical industry; Figure 7 This invention presents an enlarged structural schematic diagram of point B of an activated carbon adsorber for chemical applications; Figure 8 This invention provides a partial cross-sectional structural diagram of a filter block for an activated carbon adsorber used in chemical industry; Figure 9 This invention presents a schematic diagram of the positioning device for an activated carbon adsorber used in chemical industry.

[0030] Legend: 1. Adsorption shell; 2. Smoke inlet pipe; 3. Smoke outlet pipe; 4. Connecting pipe; 5. Filter block; 51. Filter hole; 6. Docking device; 61. Slot; 62. Sealing ring; 63. Embedding groove; 64. Top bead; 65. Limiting ring; 66. Rotating ring; 67. Limiting frame; 68. Anti-slip groove; 69. Docking pipe; 7. Limiting device; 71. Placement frame; 72. Base plate; 73. Connecting groove; 74. Auxiliary groove; 75. Positioning frame; 76. Positioning rod; 77. Rotating shaft; 78. Positioning groove; 8. Positioning device; 81. Top plate; 82. Pull rod; 83. Fixing groove; 84. Fixing bead; 85. Mounting plate; 86. Moving hole; 87. Washer ring; 88. Mounting shaft. Detailed Implementation

[0031] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0032] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.

[0033] like Figure 1-9 As shown, the present invention provides an activated carbon adsorber for chemical use, including an adsorption shell 1 and a docking device 6. Both ends of the adsorption shell 1 are fixedly connected to connecting pipes 4. A smoke inlet pipe 2 is installed on the surface of one connecting pipe 4 through the docking device 6, and a smoke exhaust pipe 3 is installed on the surface of the other connecting pipe 4 through the docking device 6. The smoke inlet pipe 2 and the smoke exhaust pipe 3 are located at the two ends of the adsorption shell 1, respectively. A plurality of filter blocks 5 are provided on the inner wall of the adsorption shell 1. The cross-sectional dimensions of the filter blocks 5 are adapted to the cross-sectional dimensions of the adsorption shell 1. A limiting device 7 is provided on the inner wall of the adsorption shell 1 corresponding to the position of the filter blocks 5. A positioning device 8 is provided on the upper surface of the adsorption shell 1 and the upper surface of the placement frame 71.

[0034] The following section will describe in detail the specific setup and function of its docking device 6, limiting device 7, and positioning device 8.

[0035] like Figure 3 , Figure 4 and Figure 5 As shown, the docking device 6 includes a connecting pipe 69, one end of which is fixedly connected to one end of the exhaust pipe 3. The connecting pipe 69 is slidably inserted into the inner wall of the connecting pipe 4. A groove 61 is formed on the arc surface of the connecting pipe 69. A plurality of inlay grooves 63 are evenly formed on the arc surface of the connecting pipe 4. A top bead 64 abuts against the inner wall of the inlay groove 63. The arc surface of the top bead 64 engages with the inner wall of the groove 61. A rotating ring 66 is threadedly connected to the arc surface of the connecting pipe 4. A limiting ring 65 is rotatably connected to the side of the rotating ring 66 near the top bead 64. The inner wall of the limiting ring 65 is connected to the inner wall of the connecting pipe 4. The circular arc surface sliding connection has an inclined cross section of the limiting ring 65. The bottom surface of the limiting ring 65 abuts against the circular arc surface of the top bead 64. The inner wall surface of the limiting ring 65 is fixedly connected to the position of the top bead 64. The cross-sectional dimensions of the limiting frame 67 are adapted to the cross-sectional dimensions of the top bead 64. The top bead 64 is a stainless steel bead. The inner walls of the connecting pipe 69 and the connecting pipe 4 are fixedly connected to a sealing ring 62 on the side that is close to each other. The sealing ring 62 is a rubber ring. The circular arc surface of the rotating ring 66 is provided with several anti-slip grooves 68, which are evenly distributed on the surface of the rotating ring 66.

[0036] like Figure 6 , Figure 7 and Figure 8 As shown, the limiting device 7 includes a placement frame 71. The surface of the placement frame 71 is inserted into the inner wall surface of the adsorption housing 1. The inner wall of the placement frame 71 is inserted into the surface of the filter block 5. Connecting grooves 73 are provided on the four corner surfaces of the placement frame 71. The cross-section of the connecting grooves 73 is "L". Auxiliary grooves 74 are provided on the surface of the placement frame 71 at the positions corresponding to the two ends of the connecting grooves 73. Positioning rods 76 are threaded through the connecting grooves 73 and auxiliary grooves 74 when they are close to each other. One end of the positioning rods 76 is fixedly connected to a rotating shaft 77. The rotating shaft 77 is located on the inner wall of the auxiliary groove 74. The arc surfaces of the two positioning rods 76 are threadedly connected to the same positioning frame 75. Positioning grooves 78 are provided on the four corner surfaces of the filter block 5. The positioning frame 75 is inserted into the inner wall of the positioning grooves 78 and the connecting grooves 73. A base plate 72 is fixedly connected to the four corners of the bottom end of the placement frame 71. The surface of the base plate 72 abuts against the surface of the filter block 5.

[0037] like Figure 9As shown, the positioning device 8 includes a top plate 81 and a mounting plate 85. The lower surface of the top plate 81 is fixedly connected to the upper surface of the placement frame 71. Pull rods 82 are fixedly connected to both ends of the top plate 81. The pull rods 82 have a U-shaped cross-section. Fixing grooves 83 are provided on both sides of the top plate 81. Fixing posts 84 are fixedly connected to the surface of the adsorption housing 1 at positions corresponding to the fixing grooves 83. The mounting plate 85 has a Z-shaped cross-section. A moving hole 86 is provided on the bottom surface of the mounting plate 85. The moving hole 86 has a vertical cross-section. The arc surface of the fixed column 84 is slidably connected to the inner wall of the moving hole 86. One end surface of the mounting plate 85 is inserted into the inner wall of the fixing groove 83. The arc surface of the fixed column 84 is threaded with a mounting shaft 88. The arc surface of the fixed column 84 is fitted with a washer 87. The upper surface of the washer 87 abuts against the lower surface of the mounting shaft 88. The surface of the filter block 5 is provided with several filter holes 51. The cross-section of the filter holes 51 is "S". The filter block 5 is an activated carbon block.

[0038] The overall working principle is as follows: the chemical waste gas to be treated flows into the inlet pipe 2 under the action of an external fan. The inlet pipe 2 is quickly and airtightly connected to the connecting pipe 4 at one end of the adsorption shell 1 through the docking device 6, ensuring that the waste gas enters the shell without leakage. After entering the adsorption shell 1, the waste gas is forced to pass through one or more vertically stacked filter blocks 5. These filter blocks 5 are made of activated carbon and have "S"-shaped filter holes 51 inside. The waste gas travels through the tortuous "S"-shaped channels, greatly extending the contact area and time with the activated carbon. Harmful substances in the waste gas, such as VOCs and odor molecules, are physically adsorbed or chemically reacted by the pores on the surface of the activated carbon, thereby being effectively removed. During this process, the operator connects the inlet pipe 2 and the exhaust pipe 3 to the connecting pipes 4 at both ends of the adsorption housing 1 via the docking device 6. During connection, the connecting pipe 69 is inserted into the connecting pipe 4, and then the rotating ring 66 is rotated. The rotation of the rotating ring 66 pushes the limiting ring 65 on its inner side. As the inclined surface of the limiting ring 65 moves, it squeezes multiple top beads 64 embedded in the groove 63 of the connecting pipe 4, forcing these top beads 64 to move radially towards the center, ultimately securing them firmly into the groove 61 on the connecting pipe 69, achieving mechanical locking and preventing the pipes from detaching. Simultaneously, the sealing ring 62 on the end face of the connecting pipe 69 and the connecting pipe 4 undergoes elastic deformation under the locking force, tightly fitting together to form a reliable air seal, preventing exhaust gas leakage. At this point, a complete and sealed airflow channel from intake to exhaust is established. The activated carbon filter block 5 has been pre-installed in the placement frame 71. The positioning frame 75 in the placement frame 71, adjusted by the positioning rod 76, slides into the positioning groove 78 of the filter block 5 and the connecting groove 73 of the placement frame 71 itself, thereby firmly locking the filter block 5 in the center of the placement frame 71 from all sides, preventing it from moving in any direction. The bottom plate 72 provides bottom support, thus firmly locking the filter block 5 in the center of the placement frame 71 from all sides, preventing it from moving in any direction. The bottom plate 72 provides bottom support for the entire placement frame 71 module carrying the filter block 5. As a whole, it is placed into the adsorption housing 1. The top plate 81 and its pull rod 82 above the placement frame 71 facilitate lifting and lowering. The moving hole 86 at the lower end of the mounting plate 85 is fitted into the fixing post 84 on the housing, and then the mounting plate 85 is moved horizontally so that its other end is embedded in the fixing groove 83 of the top plate 81. Finally, the mounting shaft 88 is tightened, and the mounting plate 85 is pressed and fixed by the washer 87. This process precisely and firmly positions and locks the placement frame 71 module in the preset position inside the housing. Finally, the exhaust gas enters the housing from the inlet pipe 2 and passes evenly through multiple activated carbon filter blocks 5, which are secured by the limiting device 7 and the positioning device 8. The exhaust gas is forced to flow through the filter holes 51 with an "S" shaped cross-section inside the filter block 5. The flow channel is tortuous and extended, maximizing the contact area and time with the activated carbon. Harmful components are efficiently adsorbed, and the purified gas is discharged through the exhaust pipe 3.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A chemical activated carbon adsorber, comprising an adsorption shell (1) and a docking device (6), characterized in that: Both ends of the adsorption shell (1) are fixedly connected to connecting pipes (4). One of the connecting pipes (4) has a smoke inlet pipe (2) installed on its surface via a docking device (6), and the other connecting pipe (4) has a smoke exhaust pipe (3) installed on its surface via the docking device (6). The smoke inlet pipe (2) and the smoke exhaust pipe (3) are located at opposite ends of the adsorption shell (1). The inner wall of the adsorption shell (1) is provided with several filter blocks (5), the cross-sectional dimensions of which are adapted to the cross-sectional dimensions of the adsorption shell (1). The docking device (6) includes a connecting pipe (69), one end of which is connected to the smoke exhaust pipe (3). One end of the surface is fixedly connected. The connecting pipe (69) is slidably inserted into the inner wall of the connecting pipe (4). The arc surface of the connecting pipe (69) is provided with a slot (61). The arc surface of the connecting pipe (4) is evenly provided with a number of inlay slots (63). The inner wall of the inlay slot (63) abuts against a top bead (64). The arc surface of the top bead (64) is engaged with the inner wall of the slot (61). The arc surface of the connecting pipe (4) is threaded with a rotating ring (66). The side of the rotating ring (66) near the top bead (64) is rotatably connected to a limiting ring (65). The inner wall of the limiting ring (65) is slidably connected to the arc surface of the connecting pipe (4).

2. The activated carbon adsorber for chemical use according to claim 1, characterized in that: The cross-section of the limiting ring (65) is inclined, and the bottom surface of the limiting ring (65) abuts against the arc surface of the top bead (64).

3. The activated carbon adsorber for chemical use according to claim 1, characterized in that: The inner wall surface of the limiting ring (65) is fixedly connected to the position of the top bead (64) by a limiting frame (67). The cross-sectional dimensions of the limiting frame (67) are adapted to the cross-sectional dimensions of the top bead (64), and the top bead (64) is a stainless steel bead.

4. The activated carbon adsorber for chemical use according to claim 1, characterized in that: The inner walls of the connecting pipe (69) and the connecting pipe (4) are fixedly connected with sealing rings (62) on the side close to each other. The sealing rings (62) are rubber rings.

5. The activated carbon adsorber for chemical use according to claim 1, characterized in that: The rotating ring (66) has a plurality of anti-slip grooves (68) on its arc surface, and the plurality of anti-slip grooves (68) are evenly distributed on the surface of the rotating ring (66).

6. The activated carbon adsorber for chemical use according to claim 1, characterized in that: A limiting device (7) is provided on the inner wall of the adsorption housing (1) at the position corresponding to the filter block (5). The limiting device (7) includes a placement frame (71). The surface of the placement frame (71) is inserted into the inner wall surface of the adsorption housing (1), and the inner wall of the placement frame (71) is inserted into the surface of the filter block (5). Connecting grooves (73) are provided on the four corner surfaces of the placement frame (71). The cross-section of the connecting groove (73) is "L". The surface of the placement frame (71) is provided at both ends of the connecting groove (73). An auxiliary groove (74) is provided. A positioning rod (76) is threaded through the auxiliary groove (74) and the connecting groove (73) close to each other. One end of the positioning rod (76) is fixedly connected to a rotating shaft (77). The rotating shaft (77) is located on the inner wall of the auxiliary groove (74). The arc surfaces of the two positioning rods (76) are threaded to the same positioning frame (75). Positioning grooves (78) are opened on the four corner surfaces of the filter block (5). The positioning frame (75) is inserted into the inner wall of the positioning groove (78) and the connecting groove (73).

7. The activated carbon adsorber for chemical use according to claim 6, characterized in that: The bottom four corners of the placement frame (71) are all fixedly connected to a base plate (72), and the surface of the base plate (72) abuts against the surface of the filter block (5).

8. The activated carbon adsorber for chemical use according to claim 1, characterized in that: The upper surface of the adsorption housing (1) and the upper surface of the placement frame (71) are provided with positioning devices (8). The positioning device (8) includes a top plate (81) and a mounting plate (85). The lower surface of the top plate (81) is fixedly connected to the upper surface of the placement frame (71). Pull rods (82) are fixedly connected to both ends of the top plate (81). The cross-section of the pull rods (82) is U-shaped. Fixing grooves (83) are opened on both sides of the top plate (81). A fixing post (84) is fixedly connected to the position corresponding to the fixing groove (83) on the surface. The mounting plate (85) has a "Z" shaped cross section. A moving hole (86) is opened on the bottom surface of the mounting plate (85). The moving hole (86) has a vertical cross section. The arc surface of the fixing post (84) is slidably connected to the inner wall of the moving hole (86). One end surface of the mounting plate (85) is inserted into the inner wall of the fixing groove (83). The arc surface of the fixing post (84) is threadedly connected to the mounting shaft (88).

9. The activated carbon adsorber for chemical use according to claim 8, characterized in that: The arc surface of the fixed column (84) is fitted with a washer (87), and the upper surface of the washer (87) abuts against the lower surface of the mounting shaft (88).

10. The activated carbon adsorber for chemical use according to claim 1, characterized in that: The surface of the filter block (5) is provided with a plurality of filter holes (51), the cross-section of the filter holes (51) is "S" shaped, and the filter block (5) is an activated carbon block.

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