An efficient catalytic absorption treatment device for ethylene oxide waste gas

Abstract

This invention relates to the technical field of ethylene oxide waste gas treatment devices, and discloses a high-efficiency catalytic absorption treatment device for ethylene oxide waste gas. This device includes a treatment vessel, a buffer tank, and a plate heat exchanger. A first pump is installed on the treatment vessel, and the first pump is connected to the treatment chamber of the treatment vessel via an input pipe. The plate heat exchanger is connected to the buffer tank via a second connecting pipe, and the buffer tank is connected to the first pump on the first treatment vessel via a first connecting pipe. This application uses a plate heat exchanger to cool the ethylene oxide in the waste gas, achieving preliminary purification. Simultaneously, multiple treatment vessels are used to achieve multi-stage purification of the waste gas, enabling rapid and efficient absorption of ethylene oxide waste gas and reducing its content, thereby meeting the emission standards for ethylene oxide waste gas.

Description

Technical Field

[0001] This invention relates to the technical field of ethylene oxide waste gas treatment devices, specifically a high-efficiency catalytic absorption treatment device for ethylene oxide waste gas. Background Technology

[0002] Ethylene oxide is a very important fine chemical raw material that can be used to derive various fine chemical products such as ethylene glycol, nonionic surfactants, ethanolamine, and ethylene glycol ethers. Its applications are extremely wide-ranging. Furthermore, ethylene oxide gas has strong bactericidal power and a broad bactericidal spectrum, capable of killing various microorganisms, including bacterial spores. As a sterilizing agent, ethylene oxide does not damage the items being sterilized and has strong penetrating power. Therefore, most items that are not suitable for sterilization by conventional methods can be disinfected and sterilized with ethylene oxide.

[0003] Currently, industrial absorption of ethylene oxide mostly involves simply using a single absorption tower to absorb residual ethylene oxide in the exhaust gas. This lacks multi-stage purification capabilities, resulting in residual ethylene oxide levels in the exhaust gas still exceeding standards. Consequently, the absorption and treatment effect of ethylene oxide waste gas is not ideal. Summary of the Invention

[0004] The purpose of this invention is to provide a high-efficiency catalytic absorption treatment device for ethylene oxide waste gas, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a high-efficiency catalytic absorption treatment device for ethylene oxide waste gas, comprising a treatment vessel, a buffer tank, and a plate heat exchanger. A first pump is installed on the treatment vessel, and the first pump is connected to the treatment chamber of the treatment vessel via an input pipe. Multiple treatment vessels are arranged sequentially, and adjacent treatment vessels are connected via a conveying pipe. One end of the conveying pipe is connected to the output end of the treatment chamber, and the other end is connected to the first pump. The conveying pipe on the last treatment vessel is connected to an exhaust gas fan, and an exhaust pipe is installed on the exhaust gas fan. An inlet pipe is installed on the input end of the plate heat exchanger, and the output end of the plate heat exchanger is connected to the input end of the buffer tank via a second connecting pipe. The output end of the buffer tank is connected to the first pump on the first treatment vessel. The machine is connected via a first connecting pipe. A plate heat exchanger cools the ethylene oxide in the exhaust gas, reducing its temperature and allowing some of it to change from a gaseous to a liquid state. The gas-liquid mixture is then transported to a buffer tank via a second connecting pipe. Water in the buffer tank absorbs both gaseous and liquid ethylene oxide, adsorbing and separating it from the exhaust gas. A first pump then pumps the mixture from the buffer tank to a treatment vessel for purification, where gas-liquid separation occurs. The separated gas passes through multiple treatment vessels for multi-stage purification. Finally, it is discharged through an exhaust pipe under the suction of an exhaust fan. This process quickly and efficiently absorbs ethylene oxide in the exhaust gas, reducing its content and meeting emission standards.

[0006] As a preferred technical solution, the processing vessel is equipped with a drug chamber, and a second pump is installed at the bottom of the processing vessel. The second pump is connected to the drug chamber through a drug inlet pipe and to the processing chamber through a drug delivery pipe. A tube sheet is installed in the processing chamber, and a cavity is provided in the tube sheet. An input pipe is connected to the cavity, and multiple spray heads are installed on the output end of the cavity. Multiple air holes are provided on the tube sheet. The processing vessel is equipped with a purification and absorption component and a purification and absorption enhancement component. By starting the second pump, the acidic purifying agent in the drug chamber can be transported to the processing chamber of the processing vessel through the drug inlet pipe and the drug delivery pipe. This facilitates the combination reaction between the acidic purifying agent and ethylene oxide. When the spray head sprays the mixture, the mixture can mix with the acidic purifying agent and filler in the processing chamber, which can increase the contact area between the mixture and the acidic purifying agent and filler, so that the ethylene oxide in the mixture can be fully absorbed.

[0007] As a preferred technical solution, the purification and absorption assembly includes a perforation, a drive motor, a rotating shaft, a reciprocating lead screw, a linkage rod, an arc-shaped disk, an annular groove, and a connecting ring;

[0008] An annular groove is formed on the bottom wall of the processing chamber. A connecting ring is rotatably installed in the annular groove, and an arc-shaped disk is installed in the connecting ring. A perforation is provided on the tube sheet, and a drive motor is installed on the tube sheet. A rotating shaft is installed on the output shaft of the drive motor, and the rotating shaft passes through the perforation. A reciprocating screw is installed on the rotating shaft. The bottom of the reciprocating screw is connected to the arc-shaped disk through a linkage rod. When the mixed liquid is sprayed into the treatment vessel, the drive motor is started, causing the drive motor to drive the rotating shaft to rotate. The rotating shaft drives the arc-shaped disk to rotate synchronously through the reciprocating screw and the linkage rod. The rotation of the arc-shaped disk prevents the packing material in the processing chamber from accumulating at the bottom, allowing the packing material to jump, roll, and rotate, stirring the mixed liquid, packing material, and acidic purifying agent. This is beneficial for improving the purification effect of the mixed liquid, and the stirring process also facilitates the overflow of gas in the mixed liquid, achieving gas-liquid separation of the mixed liquid.

[0009] As a preferred technical solution, the purification and absorption assembly further includes a moving block, wire holes, a pH sensor, a bearing, a rotating ring, a fan plate, an outer ring, an insert, and a threaded groove;

[0010] A movable block is mounted on the reciprocating screw, and a threaded hole is formed on the movable block. The reciprocating screw passes through the threaded hole, and the reciprocating screw and the threaded hole are threadedly engaged. A pH sensor is mounted on the movable block, and a rotating ring is rotatably mounted on the movable block via a bearing. Multiple fan plates are mounted on the side wall of the rotating ring, and the multiple fan plates are connected by an outer ring. An insert is mounted on the outer ring. The wall of the processing chamber has a threaded groove, and the insert is fitted into the threaded groove, with the insert and the threaded groove having a sliding fit. Utilizing the rotation of the reciprocating screw, and with the threaded engagement between the reciprocating screw and the threaded hole, the movable block can drive the pH sensor to perform longitudinal reciprocating linear movement within the processing chamber of the processing vessel. This facilitates the pH sensor's ability to detect liquids of different depths. During the testing process, the rotating ring can rotate via the bearings. As the moving block moves downward, the threaded engagement between the insert and the threaded groove causes the insert to rotate counterclockwise, which in turn causes the fan plate to rotate synchronously. This stirs the mixture in the treatment vessel, causing it to rotate counterclockwise. When the moving block moves upward, the outer ring, driven by the insert, rotates clockwise, creating a rotational counter-rotation effect on the mixture that is rotating counterclockwise in the treatment vessel. This improves the stirring effect on the mixture. Furthermore, when the pH sensor detects that the mixture is slightly alkaline, the pH sensor can control the drive motor to increase its speed via the controller, accelerating the stirring rate of the mixture.

[0011] As a preferred technical solution, the purification and absorption enhancement component includes a connecting end block, an active airbag, a diversion controller, a first connecting air pipe, a through hole, a first fixing plate, a second fixing plate, a fixing rod, a transmission plate, and a driven airbag.

[0012] A connecting end block is installed on the moving block, and the connecting end block is connected to the tube sheet via an active airbag. A diversion controller is installed on the processing vessel, and the diversion controller is connected to the active airbag via a first connecting air pipe. A through hole is opened on the processing vessel, and the first connecting air pipe passes through the through hole. A first fixing plate and a second fixing plate are fixedly installed on the processing vessel, and the first fixing plate and the second fixing plate are connected by a fixing rod. A transmission plate is slidably installed on the fixing rod, and the transmission plate is connected to the first fixing plate via a driven airbag. The driven airbag is connected to the diversion controller via a... The second connecting air tube connects to the active airbag, and the longitudinal reciprocating movement of the moving block drives the purification and absorption enhancement component. When the moving block moves downward, it can stretch the active airbag through the connecting end block, allowing the active airbag to draw in airflow through the first connecting air tube and the input port of the diversion controller. When the moving block moves upward, it squeezes the active airbag, allowing the gas in the active airbag to enter the driven airbag through the first connecting air tube, the diversion controller, and the second connecting air tube. This causes the driven airbag to expand in volume under the action of the gas, thereby pushing the transmission plate downward.

[0013] As a preferred technical solution, the pH sensor is electrically connected to the drive motor, and the pH sensor provides positive feedback control for the drive motor. A fixing block is installed at the bottom of the arc-shaped disk, and a chamber is provided inside the fixing block. A pressure sensor is installed in the chamber, and a compression ball is placed inside the chamber. The compression ball compresses the pressure sensor under centrifugal force. The pressure sensor is electrically connected to the flow controller. When the drive motor normally drives the arc-shaped disk to rotate, the compression ball in the chamber can compress the pressure sensor under centrifugal force. The pressure on the pressure sensor does not exceed the set value. At this time, the flow controller is not activated. The active airbag draws in airflow through the first connecting air tube and the input port of the flow controller, and then discharges the airflow through the first connecting air tube and the output port of the flow controller. When the drive motor increases its speed under the control of the pH sensor, the compression force of the compression ball on the pressure sensor exceeds the set value. The flow controller is activated, and the active airbag draws in airflow through the first connecting air tube and the input port of the flow controller. The airflow is then diverted through the first connecting air tube, the flow controller, and the second connecting air tube, so that the active airbag can supply air to the passive airbag.

[0014] As a preferred technical solution, the purification and absorption enhancement component further includes a transmission rod, a slide rail, a linkage block, a support spring, a support rod, a pressing plate, and a touch switch;

[0015] Two transmission rods are symmetrically installed at the bottom of the transmission plate. Two sets of slides are symmetrically opened on the second fixed plate. Linkage blocks are slidably installed in the two sets of slides. The linkage blocks are connected to the slides by support springs. The linkage blocks and transmission rods are in inclined engagement. A support rod is installed at the bottom of the linkage block. A pressing plate is installed on the support rod. A touch switch is installed on the second pump. When the transmission plate moves downward under the drive of the driven airbag, the transmission plate can drive the transmission rod to move downward synchronously. At this time, through the inclined engagement between the transmission rod and the linkage block, the linkage blocks in the two sets of slides can be pushed to compress the support springs and move towards each other during the downward movement of the transmission rod. This causes the linkage block to drive the pressing plate through the support rod to press the touch switch on the second pump, so that the second pump can run. The second pump can deliver some acidic purifying agent into the treatment chamber of the treatment vessel to ensure the continuous purification effect of the treatment vessel on the mixed liquid.

[0016] As a preferred technical solution, the bottom of the transmission rod is provided with a first inclined surface, and the upper part of the linkage block is provided with a second inclined surface. The first inclined surface and the second inclined surface are parallel, which is beneficial to the transmission rod being able to push the linkage block to move laterally during the downward movement of the transmission rod through the cooperation of the inclined surfaces of the first and second inclined surfaces.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0018] This application uses a plate heat exchanger to cool down the ethylene oxide in the waste gas, which facilitates the adsorption and separation of ethylene oxide in the waste gas by the buffer tank.

[0019] This application achieves multi-stage purification by sequentially passing the separated gas through multiple treatment vessels, enabling rapid and efficient absorption of ethylene oxide waste gas and reducing its content, thereby meeting the emission standards for ethylene oxide waste gas.

[0020] This application not only improves the stirring effect of the mixture, but also allows the drive motor to adjust its speed according to the acidity or alkalinity of the mixture, which is beneficial to achieving acidity or alkalinity balance in the mixture. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the processing flow structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the processing vessel structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of the processing vessel of the present invention;

[0025] Figure 4 This is a schematic diagram of the purification and absorption enhancement component structure of the present invention;

[0026] Figure 5 yes Figure 3 Enlarged structural diagram at point A in the diagram;

[0027] Figure 6 yes Figure 3 Enlarged structural diagram at point B in the diagram;

[0028] Figure 7 yes Figure 3 A magnified structural diagram at point C in the diagram.

[0029] In the diagram: 1. Processing vessel; 2. Conveying pipe; 3. Exhaust gas fan; 4. Exhaust pipe; 5. First pump; 6. Inlet pipe; 7. First connecting pipe; 8. Buffer tank; 9. Second connecting pipe; 10. Plate heat exchanger; 11. Inlet pipe; 12. Chemical tank; 13. Second pump; 14. Chemical inlet pipe; 18. Chemical delivery pipe;

[0030] 15. Tube sheet; 1501. Cavity; 1502. Spray head; 1503. Air pore;

[0031] 16. Purification and absorption assembly; 1601. Perforation; 1602. Drive motor; 1603. Rotating shaft; 1604. Reciprocating lead screw; 1605. Linkage rod; 1606. Arc-shaped disc; 1607. Annular groove; 1608. Connecting ring; 1609. Moving block; 1610. Threaded hole; 1611. pH sensor; 1612. Bearing; 1613. Rotating ring; 1614. Fan plate; 1615. Outer ring; 1616. Insert; 1617. Threaded groove;

[0032] 17. Purification and absorption enhancement component; 1701. Connecting end block; 1702. Active airbag; 1703. Diversion controller; 1704. First connecting air tube; 1705. Through hole; 1706. First fixing plate; 1707. Second fixing plate; 1708. Fixing rod; 1709. Transmission plate; 1710. Driven airbag; 1711. Second connecting air tube; 1712. Fixing block; 1713. Chamber; 1714. Pressure sensor; 1715. Squeezing ball; 1716. Transmission rod; 1717. First inclined plane; 1718. Slide rail; 1719. Linkage block; 1720. Second inclined plane; 1721. Support spring; 1722. Support rod; 1723. Pressing plate; 1724. Touch switch. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example: Figures 1-3 As shown, the present invention provides the following technical solution: a high-efficiency catalytic absorption treatment device for ethylene oxide waste gas, comprising a treatment vessel 1, a buffer tank 8, and a plate heat exchanger 10. A first pump 5 is installed on the treatment vessel 1, and the first pump 5 is connected to the treatment chamber of the treatment vessel 1 via an input pipe 6. Multiple treatment vessels 1 are arranged sequentially, and adjacent treatment vessels 1 are connected via a conveying pipe 2. One end of the conveying pipe 2 is connected to the output end of the treatment chamber, and the other end is connected to the first pump 5. The conveying pipe 2 on the last treatment vessel 1 is connected to an exhaust gas fan 3, and an exhaust pipe 4 is installed on the exhaust gas fan 3. An inlet pipe 11 is installed on the input end of the plate heat exchanger 10, and the output end of the plate heat exchanger 10 is connected to the input end of the buffer tank 8 via a second connecting pipe 9. The output end of the buffer tank 8 is connected to the first treatment vessel 1... The first pump 5 is connected to the first connecting pipe 7. The plate heat exchanger 10 cools the ethylene oxide in the waste gas, which helps to lower the temperature of the ethylene oxide in the waste gas, allowing some of the ethylene oxide to change from a gaseous state to a liquid state. The gas-liquid mixture is then transported to the buffer tank 8 through the second connecting pipe 9. The water in the buffer tank 8 absorbs the gaseous and liquid ethylene oxide, adsorbing and separating the ethylene oxide in the waste gas. At this time, the first pump 5 transports the mixture in the buffer tank 8 to the treatment vessel 1 for purification. The mixture undergoes gas-liquid separation in the treatment vessel 1. The separated gas passes through multiple treatment vessels 1 in sequence for multi-stage purification. Finally, it is discharged through the exhaust pipe 4 under the suction of the waste gas fan 3. This process can quickly and efficiently absorb ethylene oxide waste gas, thereby reducing the ethylene oxide content in the waste gas and meeting the emission standards for ethylene oxide waste gas.

[0035] The processing vessel 1 is equipped with a medicine tank 12. A second pump 13 is installed at the bottom of the processing vessel 1. The second pump 13 is connected to the medicine tank 12 through a medicine inlet pipe 14 and to the processing chamber through a medicine delivery pipe 18. A tube sheet 15 is installed in the processing chamber. A cavity 1501 is provided in the tube sheet 15. An input pipe 6 is connected to the cavity 1501. Multiple spray heads 1502 are installed on the output end of the cavity 1501. Multiple air holes 1503 are provided on the tube sheet 15. The processing vessel 1 is equipped with... The treatment chamber is equipped with a purification and absorption component 16 and a purification and absorption enhancement component 17. The treatment chamber contains packing material. By starting the second pump 13, the acidic purifying agent in the drug tank 12 can be transported to the treatment chamber of the treatment vessel 1 through the drug inlet pipe 14 and the drug delivery pipe 18. This facilitates the reaction between the acidic purifying agent and ethylene oxide. When the spray head 1502 sprays the mixture, the mixture can mix with the acidic purifying agent and packing material in the treatment chamber, which can increase the contact area between the mixture and the acidic purifying agent and packing material, so that the ethylene oxide in the mixture can be fully absorbed.

[0036] like Figure 3 and Figures 5-7 As shown, the purification and absorption assembly 16 includes a perforation 1601, a drive motor 1602, a rotating shaft 1603, a reciprocating lead screw 1604, a linkage rod 1605, an arc-shaped disk 1606, an annular groove 1607, and a connecting ring 1608.

[0037] An annular groove 1607 is formed on the bottom wall of the processing chamber. A connecting ring 1608 is rotatably installed in the annular groove 1607, and an arc-shaped disk 1606 is installed in the connecting ring 1608. A through hole 1601 is provided on the tube plate 15, and a drive motor 1602 is installed on the tube plate 15. A rotating shaft 1603 is installed on the output shaft of the drive motor 1602. The rotating shaft 1603 passes through the through hole 1601, and a reciprocating screw 1604 is installed on the rotating shaft 1603. The bottom of the reciprocating screw 1604 is connected to the arc-shaped disk 1606 through a linkage rod 1605. When treating the sprayed mixture in the reactor 1, the drive motor 1602 is started, which drives the rotating shaft 1603 to rotate. The rotating shaft 1603 drives the arc-shaped disk 1606 to rotate synchronously through the reciprocating screw 1604 and the linkage rod 1605. The rotation of the arc-shaped disk 1606 prevents the packing material in the treatment chamber from accumulating at the bottom, allowing the packing material to jump, roll, and rotate, stirring the mixture, packing material, and acidic purifying agent. This helps to improve the purification effect of the mixture and also facilitates the overflow of gas in the mixture during the stirring process, achieving gas-liquid separation of the mixture.

[0038] The purification and absorption assembly 16 also includes a moving block 1609, a wire hole 1610, a pH sensor 1611, a bearing 1612, a rotating ring 1613, a fan plate 1614, an outer ring 1615, an insert 1616, and a threaded groove 1617.

[0039] A movable block 1609 is mounted on the reciprocating lead screw 1604. A threaded hole 1610 is formed on the movable block 1609, through which the reciprocating lead screw 1604 passes. The reciprocating lead screw 1604 and the threaded hole 1610 are threadedly engaged. A pH sensor 1611 is mounted on the movable block 1609, and a rotating ring 1613 is rotatably mounted on the movable block 1609 via a bearing 1612. Multiple fan plates 1614 are mounted on the sidewall of the rotating ring 1613. 14 is connected via an outer ring 1615, on which an insert 1616 is mounted. The wall of the processing chamber has a threaded groove 1617, and the insert 1616 is fitted into the threaded groove 1617 with a sliding fit. Utilizing the rotation of the reciprocating screw 1604, and the threaded engagement between the reciprocating screw 1604 and the threaded hole 1610, the moving block 1609 can drive the pH sensor 1611 to move longitudinally within the processing chamber of the processing vessel 1. The reciprocating linear movement facilitates the detection of liquids at different depths by the pH sensor 1611. Simultaneously, since the rotating ring 1613 can rotate via the bearing 1612, during the downward movement of the moving block 1609, the threaded engagement between the insert 1616 and the threaded groove 1617 causes the insert 1616 to drive the outer ring 1615 to rotate counterclockwise. This, in turn, causes the outer ring 1615 to drive the fan plate 1614 to rotate synchronously, thereby agitating the mixture in the treatment vessel 1 counterclockwise. When the needle rotates and the moving block 1609 moves upward, the outer ring 1615, driven by the insert block 1616, can drive the fan plate 1614 to rotate clockwise. This creates a rotational counter-rotation error for the mixture that is rotating counterclockwise in the treatment vessel 1, which can improve the stirring effect of the mixture. Furthermore, when the pH sensor 1611 detects that the mixture is alkaline, the pH sensor 1611 can control the speed of the drive motor 1602 to increase through the controller, thereby accelerating the stirring rate of the mixture.

[0040] like Figures 1-4 and Figures 6-7 As shown, the purification and absorption enhancement component 17 includes a connecting end block 1701, an active airbag 1702, a diversion controller 1703, a first connecting air pipe 1704, a through hole 1705, a first fixing plate 1706, a second fixing plate 1707, a fixing rod 1708, a transmission plate 1709, and a driven airbag 1710.

[0041] A connecting end block 1701 is installed on the moving block 1609. The connecting end block 1701 is connected to the tube sheet 15 via an active airbag 1702. A diversion controller 1703 is installed on the processing vessel 1. The diversion controller 1703 is connected to the active airbag 1702 via a first connecting air pipe 1704. A through hole 1705 is opened on the processing vessel 1, and the first connecting air pipe 1704 passes through the through hole 1705. A first fixing plate 1706 and a second fixing plate 1707 are fixedly installed on the processing vessel 1. The first fixing plate 1706 and the second fixing plate 1707 are connected by a fixing rod 1708. A transmission plate 1709 is slidably installed on the fixing rod 1708. The transmission plate 1709 is connected to the first fixing plate 1706 via a driven airbag 1710. The driven airbag 1710 is connected to... The diversion controller 1703 is connected via the second connecting air pipe 1711. The longitudinal reciprocating movement of the moving block 1609 drives the purification and absorption enhancement component 17. When the moving block 1609 moves downward, it can stretch the active airbag 1702 through the connecting end block 1701, so that the active airbag 1702 draws in airflow through the first connecting air pipe 1704 and the input port of the diversion controller 1703. When the moving block 1609 moves upward, it squeezes the active airbag 1702, so that the gas in the active airbag 1702 can enter the driven airbag 1710 through the first connecting air pipe 1704, the diversion controller 1703 and the second connecting air pipe 1711, causing the driven airbag 1710 to expand in volume under the action of the gas, thereby pushing the transmission plate 1709 to move downward.

[0042] The pH sensor 1611 is electrically connected to the drive motor 1602, and the pH sensor 1611 provides positive feedback control for the drive motor 1602. A fixing block 1712 is installed at the bottom of the arc-shaped disk 1606. A chamber 1713 is provided within the fixing block 1712, and a pressure sensor 1714 is installed within the chamber 1713. A compression ball 1715 is placed within the chamber 1713. The compression ball 1715 compresses the pressure sensor 1714 under centrifugal force. The pressure sensor 1714 is electrically connected to the shunt controller 1703. When the drive motor 1602 normally drives the arc-shaped disk 1606 to rotate, the compression ball 1715 in the chamber 1713 can compress the pressure sensor 1714 under centrifugal force. The pressure on the pressure sensor 1714 does not exceed the set pressure. At this time, the diversion controller 1703 is not activated. The active airbag 1702 draws in air through the first connecting air tube 1704 and the input port of the diversion controller 1703, and then discharges the air through the output port of the first connecting air tube 1704 and the diversion controller 1703. When the drive motor 1602 increases its speed under the control of the pH sensor 1611, the squeezing force of the squeeze ball 1715 on the pressure sensor 1714 exceeds the set value. The diversion controller 1703 is activated, and the active airbag 1702 draws in air through the first connecting air tube 1704 and the input port of the diversion controller 1703. Then, through the first connecting air tube 1704, the diversion of the diversion controller 1703, and the second connecting air tube 1711, the active airbag 1702 can supply air to the passive airbag 1710.

[0043] The purification and absorption enhancement component 17 also includes a transmission rod 1716, a slide rail 1718, a linkage block 1719, a support spring 1721, a support rod 1722, a pressing plate 1723, and a touch switch 1724.

[0044] Two transmission rods 1716 are symmetrically mounted on the bottom of the transmission plate 1709. Two sets of slide rails 1718 are symmetrically provided on the second fixed plate 1707. Linkage blocks 1719 are slidably mounted within the two sets of slide rails 1718. The linkage blocks 1719 are connected to the slide rails 1718 via support springs 1721. The linkage blocks 1719 and transmission rods 1716 are in a beveled fit. A support rod 1722 is mounted at the bottom of the linkage block 1719, and a pressing plate 1723 is mounted on the support rod 1722. A touch switch 1724 is mounted on the second pump 13. When the transmission plate 1709 moves downward under the drive of the driven airbag 1710... During the movement of the transmission plate 1709, can it drive the transmission rod 1716 to move down synchronously? At this time, through the inclined surface cooperation between the transmission rod 1716 and the linkage block 1719, the linkage block 1719 in the two sets of slides 1718 can be pushed to compress the support spring 1721 and move towards each other during the downward movement of the transmission rod 1716. This causes the linkage block 1719 to drive the pressing plate 1723 to press the touch switch 1724 on the second pump 13 through the support rod 1722, so that the second pump 13 can run. Through the second pump 13, some acidic purifying agent can be delivered to the processing chamber of the processing vessel 1 to ensure the continuous purification effect of the processing vessel 1 on the mixed liquid.

[0045] The bottom of the transmission rod 1716 is provided with a first inclined surface 1717, and the upper part of the linkage block 1719 is provided with a second inclined surface 1720. The first inclined surface 1717 and the second inclined surface 1720 are parallel, which is beneficial for the transmission rod 1716 to push the linkage block 1719 to move laterally during the downward movement of the transmission rod 1716 through the cooperation of the inclined surfaces of the first inclined surface 1717 and the second inclined surface 1720.

[0046] Working principle of the invention:

[0047] The plate heat exchanger 10 cools the ethylene oxide in the waste gas, which helps to lower the temperature of the ethylene oxide in the waste gas, allowing some of the ethylene oxide to change from a gaseous state to a liquid state. The gas-liquid mixture is then transported to the buffer tank 8 through the second pipe 9, where the water flow in the buffer tank 8 absorbs the gaseous and liquid ethylene oxide, adsorbing and separating the ethylene oxide in the waste gas. At this time, the first pump 5 transports the mixture in the buffer tank 8 to the treatment vessel 1 for purification, and the mixture undergoes gas-liquid separation in the treatment vessel 1. The separated gas passes through multiple treatment vessels 1 in sequence for multi-stage purification, and finally, under the suction of the waste gas fan 3, it is discharged through the exhaust pipe 4. This process can quickly and efficiently absorb the ethylene oxide waste gas, thereby reducing the ethylene oxide content in the waste gas and meeting the emission standards for ethylene oxide waste gas.

[0048] When processing the sprayed mixture in the treatment vessel 1, the drive motor 1602 is started, causing the drive motor 1602 to drive the rotating shaft 1603 to rotate. The rotating shaft 1603 drives the arc-shaped disk 1606 to rotate synchronously through the reciprocating screw 1604 and the linkage rod 1605. The rotation of the arc-shaped disk 1606 prevents the packing material in the treatment chamber from accumulating at the bottom, allowing the packing material to jump, roll, and rotate, stirring the mixture, packing material, and acidic purifying agent. This helps to improve the purification effect of the mixture, and the stirring process also helps the gas in the mixture to escape, achieving gas-liquid separation of the mixture.

[0049] By utilizing the rotation of the reciprocating screw 1604, and the threaded engagement between the reciprocating screw 1604 and the threaded hole 1610, the moving block 1609 can drive the pH sensor 1611 to move longitudinally and reciprocally in the processing chamber of the processing vessel 1. This facilitates the pH sensor 1611 in detecting liquids of different depths. Simultaneously, since the rotating ring 1613 can rotate via the bearing 1612, during the downward movement of the moving block 1609, the threaded engagement between the insert 1616 and the threaded groove 1617 further facilitates its movement. The combination of the two allows the insert 1616 to drive the outer ring 1615 to rotate counterclockwise during its downward movement, causing the outer ring 1615 to drive the fan plate 1614 to rotate synchronously, thereby agitating the mixture in the treatment vessel 1 to rotate counterclockwise. When the moving block 1609 moves upward, the outer ring 1615, driven by the insert 1616, can drive the fan plate 1614 to rotate clockwise, creating a rotational counter-rotation error on the mixture in the treatment vessel 1 that is rotating counterclockwise, thus improving the stirring effect of the mixture.

[0050] When the speed of the drive motor 1602 increases, the longitudinal reciprocating movement of the moving block 1609 drives the purification and absorption enhancement component 17. When the moving block 1609 moves downward, it can stretch the active airbag 1702 through the connecting end block 1701, allowing the active airbag 1702 to draw in airflow through the first connecting air pipe 1704 and the inlet of the diversion controller 1703. When the moving block 1609 moves upward, it compresses the active airbag 1702, allowing the gas in the active airbag 1702 to enter the driven airbag 1710 through the first connecting air pipe 1704, the diversion controller 1703, and the second connecting air pipe 1711. This causes the driven airbag 1710 to expand under the action of the gas, thereby driving the transmission. When the transmission plate 1709 moves downward, driven by the driven airbag 1710, can the transmission plate 1709 drive the transmission rod 1716 to move downward synchronously during the movement? At this time, through the inclined surface cooperation between the transmission rod 1716 and the linkage block 1719, the linkage block 1719 in the two sets of slides 1718 can be pushed to compress the support spring 1721 and move towards each other during the downward movement of the transmission rod 1716. This causes the linkage block 1719 to drive the pressing plate 1723 to press the touch switch 1724 on the second pump 13 through the support rod 1722, so that the second pump 13 can run. The second pump 13 can deliver some more acidic purifying agent into the processing chamber of the processing vessel 1, so as to ensure the continuous purification effect of the processing vessel 1 on the mixed liquid.

[0051] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-efficiency catalytic absorption treatment device for ethylene oxide waste gas, characterized in that: The high-efficiency catalytic absorption treatment device for ethylene oxide waste gas includes a treatment vessel (1), a buffer tank (8), and a plate heat exchanger (10). A first pump (5) is installed on the treatment vessel (1). The first pump (5) is connected to the treatment chamber of the treatment vessel (1) through an input pipe (6). Multiple treatment vessels (1) are arranged sequentially, and adjacent treatment vessels (1) are connected through a conveying pipe (2). One end of the conveying pipe (2) is connected to the output end of the treatment chamber, and the other end is connected to the first pump (5). The conveying pipe (2) on the last processing vessel (1) is connected to the exhaust fan (3), the exhaust fan (3) is equipped with an exhaust pipe (4), the plate heat exchanger (10) is equipped with an inlet pipe (11), the output end of the plate heat exchanger (10) is connected to the input end of the buffer tank (8) through a second pipe (9), and the output end of the buffer tank (8) is connected to the first pump (5) on the first processing vessel (1) through a first pipe (7). The processing vessel (1) is equipped with a medicine tank (12). A second pump (13) is installed at the bottom of the processing vessel (1). The second pump (13) is connected to the medicine tank (12) through a medicine inlet pipe (14) and is connected to the processing chamber through a medicine delivery pipe (18). A tube sheet (15) is installed in the processing chamber. A cavity (1501) is provided in the tube sheet (15). The input pipe (6) is connected to the cavity (1501). Multiple spray heads (1502) are installed on the output end of the cavity (1501). Multiple air holes (1503) are provided on the tube sheet (15). A purification and absorption assembly (16) and a purification and absorption enhancement assembly (17) are provided on the processing vessel (1). The purification and absorption assembly (16) includes a perforation (1601), a drive motor (1602), a rotating shaft (1603), a reciprocating lead screw (1604), a linkage rod (1605), an arc-shaped disk (1606), an annular groove (1607), and a connecting ring (1608). The bottom wall of the processing chamber is provided with an annular groove (1607), a connecting ring (1608) is rotatably installed in the annular groove (1607), an arc-shaped disk (1606) is installed in the connecting ring (1608), a through hole (1601) is provided on the tube plate (15), a drive motor (1602) is installed on the tube plate (15), a rotating shaft (1603) is installed on the output shaft of the drive motor (1602), the rotating shaft (1603) passes through the through hole (1601), a reciprocating screw (1604) is installed on the rotating shaft (1603), and the bottom of the reciprocating screw (1604) is connected to the arc-shaped disk (1606) through a linkage rod (1605). The purification and absorption assembly (16) also includes a moving block (1609), a wire hole (1610), a pH sensor (1611), a bearing (1612), a rotating ring (1613), a fan plate (1614), an outer ring (1615), an insert (1616), and a threaded groove (1617). A movable block (1609) is mounted on the reciprocating screw (1604). A threaded hole (1610) is provided on the movable block (1609). The reciprocating screw (1604) passes through the threaded hole (1610), and the reciprocating screw (1604) and the threaded hole (1610) are threadedly engaged. A pH sensor (1611) is mounted on the movable block (1609), and a rotating ring is rotatably mounted on the movable block (1609) via a bearing (1612). (1613) Multiple fan plates (1614) are installed on the side wall of the rotating ring (1613). The multiple fan plates (1614) are connected by an outer ring (1615). An insert (1616) is installed on the outer ring (1615). A threaded groove (1617) is provided on the cavity wall of the processing chamber. The insert (1616) is fitted into the threaded groove (1617), and the insert (1616) and the threaded groove (1617) are in sliding fit.

2. The device for treating ethylene oxide exhaust gas by high-efficiency catalytic absorption according to claim 1, characterized in that: The purification and absorption enhancement component (17) includes a connecting end block (1701), an active airbag (1702), a diversion controller (1703), a first connecting air tube (1704), a through hole (1705), a first fixing plate (1706), a second fixing plate (1707), a fixing rod (1708), a transmission plate (1709), and a driven airbag (1710). A connecting end block (1701) is installed on the moving block (1609). The connecting end block (1701) is connected to the tube sheet (15) through an active airbag (1702). A diversion controller (1703) is installed on the processing vessel (1). The diversion controller (1703) is connected to the active airbag (1702) through a first connecting air pipe (1704). A through hole (1705) is opened on the processing vessel (1). The first connecting air pipe (1704) passes through the through hole (1705). (1) A first fixing plate (1706) and a second fixing plate (1707) are fixedly installed on the upper part. The first fixing plate (1706) and the second fixing plate (1707) are connected by a fixing rod (1708). A transmission plate (1709) is slidably installed on the fixing rod (1708). The transmission plate (1709) is connected to the first fixing plate (1706) through a driven airbag (1710). The driven airbag (1710) is connected to the diversion controller (1703) through a second connecting air tube (1711).

3. The device for treating ethylene oxide exhaust gas by high-efficiency catalytic absorption according to claim 2, characterized in that: The pH sensor (1611) is electrically connected to the drive motor (1602), and the pH sensor (1611) positively controls the drive motor (1602). A fixing block (1712) is installed at the bottom of the arc-shaped disk (1606). A chamber (1713) is provided in the fixing block (1712). A pressure sensor (1714) is installed in the chamber (1713), and a compression ball (1715) is placed in the chamber (1713). The compression ball (1715) squeezes the pressure sensor (1714) under centrifugal force. The pressure sensor (1714) is electrically connected to the shunt controller (1703).

4. The device for treating ethylene oxide exhaust gas by high-efficiency catalytic absorption according to claim 3, characterized in that: The purification and absorption enhancement component (17) also includes a transmission rod (1716), a slide rail (1718), a linkage block (1719), a support spring (1721), a support rod (1722), a pressing plate (1723), and a touch switch (1724). Two transmission rods (1716) are symmetrically installed at the bottom of the transmission plate (1709). Two sets of slides (1718) are symmetrically opened on the second fixed plate (1707). Linkage blocks (1719) are slidably installed in the two sets of slides (1718). The linkage blocks (1719) are connected to the slides (1718) by a support spring (1721). The linkage blocks (1719) and the transmission rods (1716) are in inclined engagement. A support rod (1722) is installed at the bottom of the linkage block (1719). A pressing plate (1723) is installed on the support rod (1722). A touch switch (1724) is installed on the second pump (13).

5. The high-efficiency catalytic absorption treatment device for ethylene oxide waste gas according to claim 4, characterized in that: The bottom of the transmission rod (1716) is provided with a first inclined surface (1717), and the upper part of the linkage block (1719) is provided with a second inclined surface (1720). The first inclined surface (1717) and the second inclined surface (1720) are parallel.

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