Ethylene oxide efficient absorption treatment process and treatment device thereof

Abstract

The invention discloses a high-efficiency ethylene oxide absorption treatment process and a treatment device thereof, and relates to the technical field of high-efficiency ethylene oxide treatment, and the high-efficiency ethylene oxide absorption treatment process comprises the following steps: step 1, waste gas cooling: a worker injects waste gas to be treated into an electric heating treatment kettle through a waste gas injection pipe; according to the ethylene oxide efficient absorption treatment process and the treatment device thereof, through the arrangement of the water washing kettle and the plate heat exchanger, the treatment process can effectively remove granular impurities in waste gas in a manner of firstly cooling the waste gas and then washing the waste gas, and meanwhile ethylene oxide is blended into inflow water for subsequent purification treatment; then ethylene oxide in the mixed solution is accurately separated through cooperation of the electric heating treatment kettle, so that convenience is provided for targeted gas purification of adsorption materials such as activated carbon and molecular sieves in a plurality of subsequent waste gas purification kettles; and thus, the ethylene oxide treatment efficiency is improved, and meanwhile, the content of ethylene oxide in discharged gas meets the national emission standard.

Description

Technical Field

[0001] This invention relates to the field of high-efficiency ethylene oxide treatment technology, specifically to a high-efficiency absorption treatment process and apparatus for ethylene oxide. Background Technology

[0002] Ethylene oxide is a simple epoxide with the chemical formula C₂H₄O. It is a colorless gas with an ether-like odor at room temperature, easily liquefied (boiling point 10.7℃), and widely used in industry and medicine. However, it is highly toxic, flammable, and explosive, requiring strict control over its use. Due to the extremely high hazard of ethylene oxide, specialized treatment processes and equipment are needed for precise and efficient treatment of waste gas containing it. However, current ethylene oxide treatment equipment still has the following shortcomings: First, existing ethylene oxide treatment devices mostly use multiple purification methods to treat ethylene oxide, but they cannot separate the ethylene oxide in the waste for targeted removal, resulting in low treatment efficiency and poor purification effect of the treatment devices, thus having certain defects in use. Secondly, the replacement process for purification materials in existing ethylene oxide treatment devices is quite cumbersome. Generally, the sealing structure needs to be removed before disassembling and replacing the materials. After the replacement and reassembly are completed, the sealing structure needs to be installed again, which interferes with the overall replacement efficiency of the staff. Summary of the Invention

[0003] The purpose of this invention is to provide a high-efficiency absorption and treatment process and apparatus for ethylene oxide to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency absorption and treatment process for ethylene oxide, the high-efficiency absorption and treatment process for ethylene oxide comprising the following steps: Step 1, exhaust gas cooling: The staff injects the exhaust gas to be treated into the electric heating treatment vessel through the exhaust gas injection pipe, and at the same time injects the coolant into the heat exchanger body through the coolant injection pipe. At this time, the exhaust gas and coolant flow in opposite directions inside the heat exchanger body to achieve efficient heat exchange. Then, the cooled exhaust gas is discharged into the water washing vessel through the exhaust gas output pipe for subsequent treatment, and the coolant after heat exchange is discharged from the coolant output pipe. Step 2, waste gas washing: The cooled gas-liquid mixture is injected into the washing tank through the waste gas output pipe for washing, so that the water in the washing tank can absorb the ethylene oxide in the gas-liquid mixture. Step 3, Gas-Liquid Separation and Purification: After the gas-liquid mixture is washed with water, the pump starts running. At this time, the mixture in the washing tank is pumped into the electric heating treatment tank through the water suction pipe. Then, the electric heating tube and the first motor in the electric heating treatment tank are turned on by the controller. When the first motor starts running, it drives the stirring blades through the connecting shaft to stir the mixture in the electric heating treatment tank, so that the mixture is heated more evenly. As the temperature in the electric heating treatment tank gradually rises, the ethylene oxide gas in the mixture gradually separates from the solution and is automatically injected into the interior of the waste gas purification tank through the ethylene oxide waste gas discharge pipe. Then, the purified material in the purification material carrying mechanism is transported into the next waste gas purification tank for secondary purification. Each waste gas purification tank is equipped with an ethylene oxide monitor to ensure that the ethylene oxide content in the air after multiple purifications meets the emission standards. It can also remind the staff to replace the purification material in real time.

[0005] A high-efficiency ethylene oxide absorption and treatment device is disclosed, which utilizes the aforementioned high-efficiency ethylene oxide treatment process. The device includes an electrically heated treatment vessel, an ethylene oxide waste gas discharge pipe, and a purification material support mechanism. A first sealing cover is fixedly installed on the top of the electrically heated treatment vessel, and a first motor is mounted on the top of the first sealing cover. The output shaft of the first motor is connected to a connecting shaft via a coupling, and an agitator is fixedly installed at the end of the connecting shaft. A pump body is fixedly installed on the top of the first sealing cover, and a water suction pipe is fixedly connected to the side of the pump body. The end of the water suction pipe is connected to a water washing vessel, and a water injection pipe is fixedly installed on the top of the water washing vessel. A plate heat exchanger is fixedly installed on the side of the water washing vessel. The heater has an ethylene oxide exhaust pipe fixedly installed on the top of the first sealing cover, and an exhaust gas purification vessel is fixedly connected to the other side of the ethylene oxide exhaust pipe. A second motor is installed at the bottom of the exhaust gas purification vessel, and a ball screw is installed on the output shaft of the second motor through a coupling. A connecting seat is installed at the end of the ball screw, and fixing strips are installed in a ring at equal intervals on the outer surface of the connecting seat. The purification material carrying mechanism is movably installed on the outer surface of the ball screw, and the outer surface of the purification material carrying mechanism is in close contact with the inner surface of the exhaust gas purification vessel. A sealing component is fixedly installed on the top of the purification material carrying mechanism, and a gas exhaust pipe is fixedly connected to the top of the sealing component. Locking mechanisms are symmetrically installed on the outer surface of the exhaust gas purification vessel.

[0006] Furthermore, the plate heat exchanger includes a heat exchanger body, and a waste gas injection pipe is fixedly connected to the lower end of the heat exchanger body, and a waste gas output pipe is fixedly connected to the upper end of the heat exchanger body. Coolant output pipes are symmetrically arranged on the side of the waste gas injection pipe, and coolant injection pipes are symmetrically arranged on the side of the waste gas output pipe. Fixing rods are symmetrically installed on the inner side of the heat exchanger body.

[0007] Furthermore, the end of the fixing rod is fixedly connected to the inner side of the heat exchanger body, and the other end of the fixing rod is fixedly connected to the outer surface of the water washing kettle. The heat exchanger body and the electric heating treatment kettle form a fixed structure through the fixing rod.

[0008] Furthermore, the purification material carrying mechanism includes a material placement frame, and a carrying plate is fixedly installed at the bottom of the material placement frame, and a connecting plate is fixedly connected to the top of the material placement frame. A discharge port is opened on the outer side of the material placement frame, and a sealing mechanism is movably installed on the inner surface of the discharge port. A filling port is opened at the top of the connecting plate, and a sealing plug is movably installed inside the filling port.

[0009] Furthermore, the side of the material placement frame is attached to the side of the fixing strip, and the end of the fixing strip is fixedly connected to the outer surface of the connecting seat. The other side of the fixing strip is fixedly connected to the inner surface of the waste gas purification vessel, and the connecting seat and the waste gas purification vessel form a fixed structure through the fixing strip.

[0010] Furthermore, the sealing mechanism includes an arc-shaped sealing plate, and mounting blocks are symmetrically fixedly installed on both sides of the arc-shaped sealing plate, and fastening bolts are installed on the internal threads of the mounting blocks.

[0011] Furthermore, the external dimensions of the sealing plug end match the internal dimensions of the injection port, and the sealing plug forms a locking structure with the connecting plate through the injection port.

[0012] Furthermore, the sealing assembly includes a second sealing cover, and an annular sealing strip is attached to the bottom of the second sealing cover. The outer surface of the annular sealing strip is attached to the inner surface of the waste gas purification vessel. An arc-shaped connecting strip is fixedly installed at equal intervals around the bottom of the annular sealing strip. A slot is provided on the outer side of the arc-shaped connecting strip. The bottom of the arc-shaped connecting strip is fixedly connected to the top of the connecting plate.

[0013] Furthermore, the locking mechanism includes a locking spring, and a fixing plate is fixedly connected to the end of the locking spring. A pull ring is fixedly installed at the other end of the fixing plate, and a locking strip is fixedly installed at the end of the fixing plate. The locking strip passes through the waste gas purification vessel and engages with the arc-shaped connecting strip.

[0014] This invention provides a high-efficiency absorption and treatment process and apparatus for ethylene oxide, which has the following beneficial effects: 1. This invention, through the design of a water washing tank and a plate heat exchanger, enables the treatment process to effectively remove particulate impurities from waste gas by first cooling and then washing it with water. Simultaneously, ethylene oxide is incorporated into the incoming water flow for subsequent purification. Then, an electrically heated treatment tank is used to precisely separate the ethylene oxide from the mixed solution, facilitating targeted gas purification by activated carbon, molecular sieves, and other adsorption materials in subsequent waste gas purification tanks. This improves the efficiency of ethylene oxide treatment while ensuring that the ethylene oxide content in the discharged gas meets national emission standards, and also reduces the cost of ethylene oxide treatment to some extent.

[0015] 2. This invention utilizes a ball screw to enable the second motor to drive the purification material carrier mechanism upward along the inner surface of the waste gas purification vessel during operation. Furthermore, the four fixing strips are in contact with the four purification material carrier mechanisms, making their lifting and lowering movements more stable. When the purification material carrier mechanism is removed from the waste gas purification vessel, the sealing mechanism and sealing plug are automatically exposed, facilitating the replacement of activated carbon and other adsorption materials. Because the connecting plate and the annular sealing strip are fixedly connected, the purification material carrier mechanism moves downward synchronously with the annular sealing strip, ensuring that the annular sealing strip automatically seals when the purification material carrier mechanism is fully inserted into the waste gas purification vessel, further facilitating the replacement of purification materials. Additionally, the arc-shaped end of the locking strip allows it to move along the outer surface of the purification material carrier mechanism and automatically engage with the locking groove when the purification material carrier mechanism descends to a designated position, providing convenience for installation. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of a high-efficiency absorption and treatment process and device for ethylene oxide according to the present invention; Figure 2 This is a three-dimensional structural diagram of the electrically heated treatment vessel and the first sealing cover of the high-efficiency absorption and treatment device for ethylene oxide according to the present invention. Figure 3 This is a three-dimensional structural diagram of the waste gas purification vessel and the second sealing cover of the high-efficiency ethylene oxide absorption and treatment device of the present invention. Figure 4 This is a schematic diagram of the locking spring-pull ring structure of a high-efficiency ethylene oxide absorption and treatment device according to the present invention; Figure 5 This is a three-dimensional structural diagram of the material placement frame and sealing mechanism of the high-efficiency ethylene oxide absorption and treatment device of the present invention.

[0017] In the diagram: 1. Electric heating treatment vessel; 2. First sealing cover; 3. First motor; 4. Connecting shaft; 5. Stirring blade; 6. Pump body; 7. Water suction pipe; 8. Water washing vessel; 9. Water injection pipe; 10. Plate heat exchanger; 101. Heat exchanger body; 102. Fixing rod; 103. Waste gas injection pipe; 104. Waste gas output pipe; 105. Coolant injection pipe; 106. Coolant output pipe; 11. Ethylene oxide waste gas discharge pipe; 12. Waste gas purification vessel; 13. Second motor; 14. Ball screw; 15. Connecting seat; 16. Fixing strip; 17. Purification Material support mechanism; 171. Material placement frame; 172. Support plate; 173. Connecting plate; 174. Discharge port; 175. Sealing mechanism; 1751. Arc-shaped sealing plate; 1752. Mounting block; 1753. Fastening bolt; 176. Injection port; 177. Sealing plug; 18. Sealing assembly; 181. Second sealing cover; 182. Annular sealing strip; 183. Arc-shaped connecting strip; 184. Slot; 19. Gas discharge pipe; 20. Locking mechanism; 201. Locking spring; 202. Fixing plate; 203. Pull ring; 204. Locking strip. Detailed Implementation

[0018] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0019] like Figure 1 As shown, a high-efficiency absorption and treatment process for ethylene oxide includes the following steps: Step 1, exhaust gas cooling: The staff injects the exhaust gas to be treated into the electric heating treatment vessel 1 through the exhaust gas injection pipe 103, and at the same time injects the coolant into the heat exchanger body 101 through the coolant injection pipe 105. At this time, the exhaust gas and coolant flow in opposite directions inside the heat exchanger body 101 to achieve efficient heat exchange. Then, the cooled exhaust gas is discharged into the water washing vessel 8 through the exhaust gas output pipe 104 for subsequent treatment, and the coolant after heat exchange is discharged from the coolant output pipe 106. Step 2, waste gas washing: The cooled gas-liquid mixture is injected into the interior of the washing tank 8 through the waste gas output pipe 104 for washing, so that the water flow in the washing tank 8 can absorb the ethylene oxide in the gas-liquid mixture. Step 3, Gas-Liquid Separation and Purification: After the gas-liquid mixture is washed with water, pump 6 starts to run. At this time, the mixture in the washing tank 8 is pumped into the electric heating treatment tank 1 through the water suction pipe 7. Then, the electric heating tube and the first motor 3 in the electric heating treatment tank 1 are turned on by the controller. When the first motor 3 starts to run, the stirring blade 5 drives the stirring treatment of the mixture in the electric heating treatment tank 1 through the connecting shaft 4, so that the mixture is heated more evenly. As the temperature in the electric heating treatment tank 1 gradually rises, the ethylene oxide gas in the mixture gradually separates from the solution and is automatically injected into the interior of the waste gas purification tank 12 through the ethylene oxide waste gas discharge pipe 11. Then, the purification material in the purification material carrying mechanism 17 is transported into the next waste gas purification tank 12 for secondary purification. Each waste gas purification tank 12 is equipped with an ethylene oxide monitor to ensure that the ethylene oxide content in the air after multiple purifications meets the emission standards. It can also remind the staff to replace the purification material in real time.

[0020] like Figures 1-5As shown, an ethylene oxide high-efficiency absorption and treatment device applies the aforementioned ethylene oxide high-efficiency treatment process. The device includes an electrically heated treatment vessel 1, an ethylene oxide waste gas discharge pipe 11, and a purification material support mechanism 17. A first sealing cover 2 is fixedly installed on the top of the electrically heated treatment vessel 1, and a first motor 3 is installed on the top of the first sealing cover 2. The output shaft of the first motor 3 is connected to a connecting shaft 4 via a coupling, and a stirring blade 5 is fixedly installed at the end of the connecting shaft 4. A pump body 6 is fixedly installed on the top of the first sealing cover 2, and a water suction pipe 7 is fixedly connected to the side of the pump body 6. The end of the water suction pipe 7 is connected to a water washing vessel 8, and a water injection pipe is fixedly installed on the top of the water washing vessel 8. 9. Furthermore, a plate heat exchanger 10 is fixedly installed on the side of the water washing tank 8. The plate heat exchanger 10 includes a heat exchanger body 101, and a waste gas injection pipe 103 is fixedly connected to the lower end of the heat exchanger body 101. A waste gas output pipe 104 is fixedly connected to the upper end of the heat exchanger body 101. Coolant output pipes 106 are symmetrically arranged on the side of the waste gas injection pipe 103, and coolant injection pipes 105 are symmetrically arranged on the side of the waste gas output pipe 104. Fixing rods 102 are symmetrically installed on the inner side of the heat exchanger body 101. The end of the fixing rod 102 is fixedly connected to the inner side of the heat exchanger body 101, and the other end of the fixing rod 102 is fixedly connected to the outer surface of the water washing tank 8. The heat exchanger body 101 is connected to the outer surface of the water washing tank 8 through the fixing rods 102. The electric heating treatment vessel 1 forms a fixed structure. The fixed structure of the heat exchanger body 101 and the electric heating treatment vessel 1 ensures that the heat exchanger body 101 will not loosen when cooling the exhaust gas. The ethylene oxide exhaust gas discharge pipe 11 is fixedly installed on the top of the first sealing cover 2, and the other side of the ethylene oxide exhaust gas discharge pipe 11 is fixedly connected to the exhaust gas purification vessel 12. A second motor 13 is installed at the bottom of the exhaust gas purification vessel 12, and the output shaft of the second motor 13 is connected to a ball screw 14 via a coupling. A connecting seat 15 is installed at the end of the ball screw 14, and fixing strips 16 are installed at equal intervals in a ring on the outer surface of the connecting seat 15. A purification material carrying mechanism 17 is movably installed on the outer surface of the ball screw 14. The purification material... The material carrying mechanism 17 includes a material placement frame 171, and a support plate 172 is fixedly installed at the bottom of the material placement frame 171. The side of the material placement frame 171 is abutted against the side of the fixing strip 16, and the end of the fixing strip 16 is fixedly connected to the outer surface of the connecting seat 15. The other side of the fixing strip 16 is fixedly connected to the inner surface of the waste gas purification vessel 12. The connecting seat 15 and the waste gas purification vessel 12 form a fixed structure through the fixing strip 16. By setting the connecting seat 15 and the waste gas purification vessel 12 into a fixed structure, the connecting seat 15 will not loosen when the ball screw 14 is rotated. A connecting plate 173 is fixedly connected to the top of the material placement frame 171, and a discharge port 174 is opened on the outer side of the material placement frame 171.Meanwhile, a sealing mechanism 175 is movably installed on the inner surface of the discharge port 174. The sealing mechanism 175 includes an arc-shaped sealing plate 1751, and mounting blocks 1752 are symmetrically fixed on both sides of the arc-shaped sealing plate 1751. Fastening bolts 1753 are installed on the internal threads of the mounting blocks 1752. A filling port 176 is opened on the top of the connecting plate 173, and a sealing plug 177 is movably installed inside the filling port 176. The external dimensions of the end of the sealing plug 177 match the internal dimensions of the filling port 176, and the sealing plug 177 forms a locking structure with the connecting plate 173 through the filling port 176. The locking structure of the sealing plug 177 and the connecting plate 173 makes it easy for the sealing plug 177 to be quickly picked up and put down by the staff. The outer surface of the purification material carrying mechanism 17 is in close contact with the inner surface of the waste gas purification vessel 12, and a sealing assembly 18 is fixedly installed on the top of the purification material carrying mechanism 17. The sealing assembly 18 includes A second sealing cover 181 is provided, and an annular sealing strip 182 is attached to the bottom of the second sealing cover 181. The outer surface of the annular sealing strip 182 is attached to the inner surface of the waste gas purification vessel 12. Arc-shaped connecting strips 183 are fixedly installed at equal intervals around the bottom of the annular sealing strip 182. A slot 184 is provided on the outer side of the arc-shaped connecting strip 183. The bottom of the arc-shaped connecting strip 183 is fixedly connected to the top of the connecting plate 173. A gas exhaust pipe 19 is fixedly connected to the top of the sealing assembly 18. A locking mechanism 20 is symmetrically installed on the outer surface of the waste gas purification vessel 12. The locking mechanism 20 includes a locking spring 201, and a fixing plate 202 is fixedly connected to the end of the locking spring 201. A pull ring 203 is fixedly installed at the other end of the fixing plate 202, and a retaining strip 204 is fixedly installed at the end of the fixing plate 202. The retaining strip 204 passes through the waste gas purification vessel 12 and engages with the arc-shaped connecting strip 183.

[0021] In summary, combining Figures 1-5As shown, the working principle of this high-efficiency ethylene oxide absorption and treatment device is as follows: First, the operator grasps the pull rings 203 on both sides and pulls them outward, causing the locking strip 204 to move out of the locking groove 184. Then, the second motor 13 is turned on by the controller. When the second motor 13 starts running, it drives the ball screw 14 to rotate inside the connecting seat 15. At this time, through the connection of the connecting mechanism, the four sets of purification material carrying mechanisms 17 move synchronously upward along the inner surface of the waste gas purification vessel 12, thereby causing the purification material carrying mechanism 17 to lift the sealing assembly 18 from the top of the waste gas purification vessel 12. Then, the operator removes the second sealing cover 181 and then the sealing plug. 177 Remove and rotate the fastening bolt 1753 to separate the mounting block 1752 from the material placement frame 171. Then, remove the arc-shaped sealing plate 1751 to allow the filter material stored in the material placement frame 171 to flow out. After the material in the material placement frame 171 has flowed out, rotate the fastening bolt 1753 to fix the mounting block 1752 to the material placement frame 171, thereby completing the fixing of the arc-shaped sealing plate 1751. Then, the operator injects new or treated filter material into the material placement frame 171 through the injection port 176 to complete the replacement work. After the material replacement is completed, reinsert the sealing plug 177 into the injection port 176. Secondly, the operator turns on the second motor 13 via the controller, causing the second motor 13 to rotate. This causes the purification material carrying mechanism 17 to move down again along the inner surface of the waste gas purification vessel 12. At this time, the locking spring 201 cooperates to make the locking strip 204 move along the outer surface of the material placement frame 171. Since the end of the locking strip 204 is arc-shaped, the locking strip 204 can automatically lock into the slot 184 when the purification material carrying mechanism 17 is completely submerged in the waste gas purification vessel 12 to complete the locking work. After the purification material carrying mechanism 17 has locked itself, the operator places the second sealing cover 181 back on the top of the waste gas purification vessel 12 to complete the overall replacement work. Finally, the overall waste gas treatment operation is carried out according to the above-mentioned operating steps of the ethylene oxide high-efficiency absorption treatment process.

[0022] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An efficient absorption process for ethylene oxide, characterized in that, The efficient absorption treatment process of the ethylene oxide includes the following steps: Step one, waste gas cooling: the workers inject the waste gas to be treated into the inside of the electric heating treatment kettle (1) through the waste gas injection pipe (103), and inject the cooling liquid into the inside of the heat exchanger body (101) through the cooling liquid injection pipe (105). At this time, the waste gas and the cooling liquid flow in opposite directions in the inside of the heat exchanger body (101) to achieve efficient heat exchange. Then, the cooled waste gas is discharged into the inside of the water washing kettle (8) through the waste gas output pipe (104) for subsequent treatment, and the cooling liquid after heat exchange is discharged from the cooling liquid output pipe (106); Step two, waste gas water washing: the gas-liquid mixture after cooling is injected into the inside of the water washing kettle (8) through the waste gas output pipe (104) for water washing treatment, so that the water flow in the water washing kettle (8) can absorb the ethylene oxide in the gas-liquid mixture; Step three, gas-liquid separation and purification: when the water washing of the gas-liquid mixture is completed, the pump body (6) starts to operate. At this time, the mixed liquid in the water washing kettle (8) is pumped into the inside of the electric heating treatment kettle (1) through the cooperation of the water pumping pipe (7). Then, the electric heating pipe and the first motor (3) in the electric heating treatment kettle (1) are opened by the controller. When the first motor (3) starts to operate, the stirring blade (5) is driven by the connecting shaft (4) to stir the mixed liquid in the electric heating treatment kettle (1), so that the mixed liquid is heated more uniformly. As the temperature in the electric heating treatment kettle (1) gradually rises, the ethylene oxide gas in the mixed liquid gradually separates from the solution and is automatically injected into the inside of the waste gas purification kettle (12) through the ethylene oxide waste gas discharge pipe (11). Then, the purification material in the purification material carrying mechanism (17) is conveyed into the next waste gas purification kettle (12) for secondary purification, and an ethylene oxide monitor is installed in the inside of each waste gas purification kettle (12) to ensure that the ethylene oxide content in the air after multiple purifications meets the emission standard, and also can remind the workers to replace the purification material in time.

2. An ethylene oxide high-efficiency absorption treatment device, characterized by comprising: The ethylene oxide efficient absorption treatment device applies the ethylene oxide efficient treatment process in claim 1, and comprises an electric heating treatment kettle (1), an ethylene oxide waste gas discharge pipe (11) and a purification material bearing mechanism (17). The top of the electric heating treatment kettle (1) is fixedly provided with a first sealing cover (2), and the top of the first sealing cover (2) is provided with a first motor (3). The output shaft of the first motor (3) is provided with a connecting shaft (4) through a shaft coupling. The end of the connecting shaft (4) is fixedly provided with a stirring blade (5). The top of the first sealing cover (2) is fixedly provided with a pump body (6). The side of the pump body (6) is fixedly connected with a water suction pipe (7). The end of the water suction pipe (7) is connected with a water washing kettle (8). The top of the water washing kettle (8) is fixedly provided with a water injection pipe (9). The side of the water washing kettle (8) is fixedly provided with a plate heat exchanger (10). The ethylene oxide waste gas discharge pipe (11) is fixedly arranged on the top of the first sealing cover (2). The other side of the ethylene oxide waste gas discharge pipe (11) is fixedly connected with a waste gas purification kettle (12). The bottom of the waste gas purification kettle (12) is provided with a second motor (13). The output shaft of the second motor (13) is provided with a ball screw (14) through a shaft coupling. The end of the ball screw (14) is provided with a connecting seat (15). The outer surface of the connecting seat (15) is annularly and equidistantly provided with fixed strips (16). The purification material bearing mechanism (17) is movably arranged on the outer surface of the ball screw (14). The outer surface of the purification material bearing mechanism (17) is connected with the inner surface of the waste gas purification kettle (12). The top of the purification material bearing mechanism (17) is fixedly provided with a sealing assembly (18). The top of the sealing assembly (18) is fixedly connected with a gas discharge pipe (19). The outer surface of the waste gas purification kettle (12) is symmetrically provided with a locking mechanism (20).

3. An efficient absorption treatment device for ethylene oxide according to claim 2, characterized in that, The plate heat exchanger (10) comprises a heat exchanger body (101). The end lower end of the heat exchanger body (101) is fixedly connected with a waste gas injection pipe (103). The end upper end of the heat exchanger body (101) is fixedly connected with a waste gas output pipe (104). The side of the waste gas injection pipe (103) is symmetrically provided with a cooling liquid output pipe (106). The side of the waste gas output pipe (104) is symmetrically provided with a cooling liquid injection pipe (105). The inner side of the heat exchanger body (101) is symmetrically provided with a fixed rod (102).

4. An ethylene oxide high-efficiency absorption treatment device according to claim 3, characterized by The end of the fixed rod (102) is fixedly connected with the inner side of the heat exchanger body (101). The other end of the fixed rod (102) is fixedly connected with the outer surface of the water washing kettle (8). The heat exchanger body (101) and the electric heating treatment kettle (1) form a fixed structure through the fixed rod (102).

5. An ethylene oxide high efficiency abatement device according to claim 2, wherein, The purification material bearing mechanism (17) comprises a material placing frame (171), the bottom of the material placing frame (171) is fixedly installed with a bearing plate (172), the top of the material placing frame (171) is fixedly connected with a connecting plate (173), the outer side of the material placing frame (171) is provided with a discharge port (174), the inner surface of the discharge port (174) is movably installed with a sealing mechanism (175), the top of the connecting plate (173) is provided with an injection port (176), and the inside of the injection port (176) is movably installed with a sealing plug (177).

6. An ethylene oxide high efficiency abatement device according to claim 5, wherein, The side of the material placing frame (171) is attached to the side of the fixed strip (16), the end of the fixed strip (16) is fixedly connected with the outer surface of the connecting seat (15), the other side of the fixed strip (16) is fixedly connected with the inner surface of the waste gas purification kettle (12), and the connecting seat (15) and the waste gas purification kettle (12) form a fixed structure through the fixed strip (16).

7. An ethylene oxide high efficiency abatement device according to claim 5, wherein, The sealing mechanism (175) comprises an arc-shaped sealing plate (1751), the two sides of the arc-shaped sealing plate (1751) are fixedly installed with installation blocks (1752) in a symmetrical manner, and the installation blocks (1752) are screwedly installed with fastening bolts (1753) in the inside.

8. An ethylene oxide high efficiency abatement device according to claim 5, wherein, The outer dimension of the end of the sealing plug (177) is consistent with the inner dimension of the injection port (176), and the sealing plug (177) and the connecting plate (173) form a clamping structure through the injection port (176).

9. An ethylene oxide high efficiency abatement device according to claim 5, wherein, The sealing assembly (18) comprises a second sealing cover (181), the bottom of the second sealing cover (181) is attached with an annular sealing strip (182), the outer surface of the annular sealing strip (182) is attached with the inner surface of the waste gas purification kettle (12), the bottom of the annular sealing strip (182) is fixedly installed with arc-shaped connecting strips (183) in a ring shape at equal intervals, the outer side of the arc-shaped connecting strips (183) is provided with clamping grooves (184), and the bottom of the arc-shaped connecting strips (183) is fixedly connected with the top of the connecting plate (173).

10. The efficient absorption treatment device of ethylene oxide according to claim 9, characterized in that, The locking mechanism (20) comprises a locking spring (201), the end of the locking spring (201) is fixedly connected with a fixed plate (202), the other end of the fixed plate (202) is fixedly installed with a pull ring (203), the end of the fixed plate (202) is fixedly installed with a clamping strip (204), and the clamping strip (204) is clampingly connected with the arc-shaped connecting strips (183) and the waste gas purification kettle (12).

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