A gas processing equipment for producing polytetrafluoroethylene microporous membrane

Abstract

The present invention discloses a gas processing device for producing polytetrafluoroethylene microporous membranes, specifically relating to the field of gas processing. The gas processing device comprises: a spray tower, an air supply pipe is provided at the air inlet end of the spray tower, the air supply pipe is used to pass hydrogen fluoride and hydrogen sulfide gas into the interior of the spray tower, a spray mechanism is further provided in the spray tower, the spray mechanism is used to purify hydrogen fluoride and hydrogen sulfide gas, and the air outlet end of the spray tower is connected to an air induction component, the air induction component is used to guide the purified gas out of the spray tower. The present invention further adsorbs and purifies the hydrogen fluoride and hydrogen sulfide gas after the spray reaction by providing an adsorption mechanism, and drives the storage box to rotate through a centrifugal mechanism, so that the centrifugal force generated when the storage box rotates is used to centrifugally discharge the moisture in the hydrogen fluoride and hydrogen sulfide gas after preliminary purification, so as to solve the problem that moisture occupies the pores of the adsorbent, resulting in an impact on the adsorption capacity of hydrogen fluoride and hydrogen sulfide gas.

Description

Technical Field

[0001] The present invention relates to the technical field of gas processing, and more particularly to a gas processing device for producing a polytetrafluoroethylene microporous membrane. Background Art

[0002] PTFE microporous membranes are made from polytetrafluoroethylene (PTFE) and exhibit high chemical stability, excellent corrosion resistance, and good hydrophilic and hydrophobic properties. Produced through a specialized expansion and stretching process, they create a uniformly distributed microporous structure and are widely used in filtration, separation, ventilation, and waterproofing applications.

[0003] Polytetrafluoroethylene microporous membranes usually include the steps of raw material mixing and preparation, extrusion molding, calendering, sintering, stretching and porosification, drying and cooling. Sintering is to heat the membrane to above the melting point of polytetrafluoroethylene. The molecular chains are rearranged through sintering to improve the mechanical strength and chemical stability of the membrane. During the sintering process, due to its high-temperature decomposition, it often produces some harmful gases. When the prepared polytetrafluoroethylene microporous membrane is mainly used for construction and industrial protection, the polytetrafluoroethylene microporous membrane will undergo surface modification treatment (such as hydrophilicization or hydrophobicization treatment) to give the membrane specific functionality. It is usually treated with sulfuric acid or other sulfur-containing chemical reagents to adjust the surface energy and improve the hydrophilicity or hydrophobicity. Therefore, during the sintering process, hydrogen fluoride and hydrogen sulfide gases are usually produced. Since hydrogen fluoride and hydrogen sulfide gases are both harmful gases, spray towers are usually used to purify the harmful gases produced by sintering.

[0004] In order to ensure the purification effect, the existing technology usually uses alkali solution and harmful gas neutralization reaction in the spray tower for purification, and sets up an adsorption bed for further deep purification after alkali washing. The current alkaline solution usually uses sodium hydroxide solution, but sodium hydroxide solution usually produces water after the reaction with hydrogen fluoride and hydrogen sulfide gas. Therefore, the gas after alkali washing will be in a wet state. If it directly enters the adsorption bed for further adsorption purification in a wet state, the water will occupy the pores of the adsorbent and reduce its adsorption capacity for hydrogen fluoride and hydrogen sulfide gas. Therefore, it is necessary to dry the wet hydrogen fluoride and hydrogen sulfide gas before passing it into the adsorption bed for further adsorption purification.

[0005] However, if hydrogen fluoride and hydrogen sulfide gases are currently dried, the dry hydrogen sulfide will react with hydrogen fluoride to produce harmful byproducts (such as sulfur-fluoride compounds), increasing the difficulty and danger of subsequent treatment. Therefore, moist hydrogen fluoride and hydrogen sulfide gases can only be passed into the adsorption bed for further adsorption. However, the moisture present in the moist hydrogen fluoride and hydrogen sulfide gases will occupy the pores of the adsorbent, resulting in a reduction in its adsorption capacity for hydrogen fluoride and hydrogen sulfide gases, affecting its adsorption and purification effect. Summary of the Invention

[0006] The present invention provides a polytetrafluoroethylene microporous membrane production gas processing equipment to solve the problem that when the existing spray tower passes the moist hydrogen fluoride and hydrogen sulfide gases into the adsorption bed for further adsorption, the moisture present in the moist hydrogen fluoride and hydrogen sulfide gases will occupy the pores of the adsorbent, resulting in a reduction in the adsorption capacity of the hydrogen fluoride and hydrogen sulfide gases, thereby affecting the further adsorption and purification effect of the gas.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a polytetrafluoroethylene microporous membrane production gas processing equipment, comprising: a spray tower, an air supply pipe is provided at the air inlet end of the spray tower, the air supply pipe is used to pass hydrogen fluoride and hydrogen sulfide gas into the interior of the spray tower, the spray tower is further provided with a spray mechanism, the spray mechanism is used to purify the hydrogen fluoride and hydrogen sulfide gas, and the air outlet end of the spray tower is connected to an induced draft assembly, the induced draft assembly is used to guide the purified gas out of the spray tower;

[0008] The spray tower is also provided with an adsorption mechanism, which is arranged between the spray mechanism and the gas outlet of the spray tower. The adsorption mechanism includes a storage box, in which adsorbent is stored. The adsorption mechanism is used to further adsorb and purify the gas after spray purification;

[0009] A centrifugal mechanism is also provided in the spray tower, which includes a rotating assembly. A plurality of water seepage holes are evenly opened on the outer surface of the storage box. The rotating assembly is used to drive the storage box to rotate, and the moisture in the hydrogen fluoride and hydrogen sulfide gases is discharged from the storage box through the water seepage holes through centrifugal force.

[0010] In a preferred embodiment, an air inlet pipe and an air outlet pipe are provided on the storage box, and the air inlet end of the air inlet pipe and the air outlet end of the air outlet pipe are both rotatably connected to a connecting pipe, and the two connecting pipes are fixedly arranged in the spray tower, and an air hood is fixedly provided at the bottom end of the connecting pipe connected to the air inlet pipe, and the output end of the rotating assembly is connected to the air outlet pipe.

[0011] In a preferred embodiment, the centrifugal mechanism further includes a water storage box, which is fixedly mounted on the agent storage box, and the water seepage holes on the agent storage box are all located on the inner side of the water storage box.

[0012] In a preferred embodiment, a heating mechanism is also provided in the spray tower, and the heating mechanism includes a heating component, which is fixedly provided in the spray tower. A liquid guide plate is fixedly provided in the spray tower, and the heating component is located below the liquid guide plate. A liquid inlet is provided on the liquid guide plate. An exhaust pipe is also provided on the side of the spray tower, and the air inlet end of the exhaust pipe is located below the liquid guide plate.

[0013] In a preferred embodiment, an adjustment mechanism is further provided in the spray tower, the adjustment mechanism includes a ring plate, the ring plate is located on the inner side of the storage box, and the storage box can rotate on the outer surface of the ring plate, the inner side of the storage box is provided with a plurality of connecting holes arranged in a ring array, and two air vents are provided on the ring plate, the air inlet pipe and the air outlet pipe are fixedly provided on the ring plate, the air inlet pipe and the air outlet pipe are respectively connected to the corresponding air vents, and the two air vents are respectively connected to the corresponding connecting holes, and the adjustment mechanism rotates on the surface of the ring plate through the storage box to adjust the initial contact position of the gas and the adsorbent when hydrogen fluoride and hydrogen sulfide gases enter the storage box.

[0014] In a preferred embodiment, a connecting shaft and a support rod are fixedly provided on the water storage box, a bevel gear is fixedly provided on the connecting shaft, a support ring is fixedly provided in the spray tower, a sliding ring is rotatably provided in the support ring, the support rod is fixedly provided on the sliding ring, the end of the bevel gear is rotatably provided on the sliding ring, a gear ring is movably placed on the sliding ring, the bevel gear is meshed with the gear ring, and a clamping assembly is also provided in the spray tower, and the clamping assembly is used to clamp the gear ring in position.

[0015] In a preferred embodiment, the clamping assembly includes two groups, and the two groups of clamping assemblies are symmetrically arranged. A power component is fixedly installed on the spray tower, and a clamping plate is installed at the output end of the power component. The two clamping plates are respectively located on both sides of the gear ring.

[0016] In a preferred embodiment, guide plates are provided at the outlet end of the air inlet pipe and the air inlet end of the air outlet pipe, and the guide plates are used to guide the direction of gas entering and exiting the agent storage box.

[0017] In a preferred embodiment, the spraying mechanism includes an alkali liquid tank, and a liquid pumping assembly is provided on one side of the alkali liquid tank. The liquid inlet end of the liquid pumping assembly is connected to the alkali liquid tank, and the liquid outlet end of the liquid pumping assembly is connected to a liquid delivery pipe. The liquid outlet end of the liquid delivery pipe extends into the spray tower and is connected to a ring pipe. The ring pipe is fixedly arranged in the spray tower, and the inner side of the ring pipe is fixedly connected to multiple spray heads.

[0018] In a preferred embodiment, the rotating assembly includes a driving member, an output end of the driving member is provided with a driving gear, a driven gear is fixedly sleeved on the air outlet pipe, and the driving gear is meshed with the driven gear.

[0019] The beneficial effects of the present invention are:

[0020] The present invention further adsorbs and purifies the hydrogen fluoride and hydrogen sulfide gases after the spray reaction by providing an adsorption mechanism, and drives the storage box to rotate through a centrifugal mechanism, so that the centrifugal force generated by the rotation of the storage box can be used to centrifugally discharge the moisture in the hydrogen fluoride and hydrogen sulfide gases after the initial purification, thereby solving the problem that moisture occupies the pores of the adsorbent, thereby affecting the adsorption capacity of hydrogen fluoride and hydrogen sulfide gases.

[0021] The present invention provides an adjustment mechanism. After the adsorbent has been used for a period of time, the storage box is driven to rotate to adjust the initial contact position between the gas and the adsorbent when hydrogen fluoride and hydrogen sulfide gases enter the storage box, thereby ensuring further adsorption and purification effects on hydrogen fluoride and hydrogen sulfide gases. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0023] Figure 2 The main cross-sectional structure diagram of the spray tower of the present invention is shown as follows: Figure 1 .

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the adsorption mechanism and the rotating assembly of the present invention.

[0025] Figure 4 The main cross-sectional structure diagram of the spray tower of the present invention is shown in FIG. Figure 2 .

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the adjustment mechanism of the present invention.

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the ring plate of the present invention.

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the agent storage box of the present invention.

[0029] Figure 8 for Figure 4 Schematic diagram of the enlarged structure of the clamping assembly.

[0030] Figure 9 for Figure 4 Enlarged view of part A.

[0031] Figure 10 Schematic diagram of the working state of the adjustment mechanism of the present invention.

[0032] The accompanying drawings are marked as follows: 1. spray tower; 11. air supply pipe; 2. induced draft assembly; 3. spray mechanism; 31. alkali liquid tank; 32. liquid extraction assembly; 33. liquid supply pipe; 34. ring pipe; 341. spray head; 4. adsorption mechanism; 41. storage box; 411. water seepage hole; 412. connecting hole; 42. air inlet pipe; 43. air outlet pipe; 5. centrifugal mechanism; 51. rotating assembly; 511. driving member; 512. driving gear; 513. driven gear Wheel; 52, water storage box; 521, support rod; 53, connecting pipe; 54, air hood; 6, heating mechanism; 61, liquid guide plate; 611, liquid inlet; 62, heating component; 63, exhaust pipe; 7, adjustment mechanism; 71, ring plate; 711, vent; 72, connecting shaft; 73, bevel gear; 74, support ring; 75, sliding ring; 76, gear ring; 77, clamping assembly; 771, power component; 772, splint; 8, guide plate. DETAILED DESCRIPTION

[0033] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0034] Refer to the instruction manual Figures 1 to 3 A polytetrafluoroethylene microporous membrane production gas processing equipment includes: a spray tower 1, an air supply pipe 11 is provided at the air inlet end of the spray tower 1, and the air supply pipe 11 is used to pass hydrogen fluoride and hydrogen sulfide gases into the interior of the spray tower 1. The spray tower 1 is also provided with a spray mechanism 3, and the spray mechanism 3 is used to purify the hydrogen fluoride and hydrogen sulfide gases. The air outlet end of the spray tower 1 is connected to an induced draft component 2, and the induced draft component 2 is used to guide the purified gas out of the spray tower 1;

[0035] The spray tower 1 is further provided with an adsorption mechanism 4, which is arranged between the spray mechanism 3 and the gas outlet of the spray tower 1. The adsorption mechanism 4 includes a storage box 41, in which an adsorbent is stored. The adsorption mechanism 4 is used to further adsorb and purify the gas after spray purification.

[0036] A centrifugal mechanism 5 is also provided in the spray tower 1. The centrifugal mechanism 5 includes a rotating assembly 51. A plurality of water seepage holes 411 are evenly opened on the outer surface of the storage box 41. The rotating assembly 51 is used to drive the storage box 41 to rotate, and the moisture in the hydrogen fluoride and hydrogen sulfide gases is discharged from the storage box 41 through the water seepage holes 411 through centrifugal force.

[0037] It should be noted that an exhaust fan can be provided in the air supply pipe 11 to absorb harmful gases generated during the sintering process of polytetrafluoroethylene, and to deliver the harmful gases to the spray tower 1 through the air supply pipe 11, and the draft component 2 can be a fan, which extracts and guides the gas to be discharged, and the spray mechanism 3 can extract sodium hydroxide solution through a water pump, transport it into the spray tower 1, and spray the sodium hydroxide solution on the hydrogen fluoride and hydrogen sulfide gases to react with the hydrogen fluoride and hydrogen sulfide gases for neutralization and purification.

[0038] The specific implementation scenario is as follows: first, the hydrogen fluoride and hydrogen sulfide gases generated during the sintering process of polytetrafluoroethylene are drawn into the spray tower 1 through an exhaust fan, and at the same time, sodium hydroxide solution is extracted through the spray mechanism 3, and the sodium hydroxide solution is sprayed on the hydrogen fluoride and hydrogen sulfide gases to achieve preliminary purification of the hydrogen fluoride and hydrogen sulfide gases. Subsequently, the hydrogen fluoride and hydrogen sulfide gases after preliminary purification enter the storage box 41, and the hydrogen fluoride and hydrogen sulfide gases are further purified by the adsorbent in the storage box 41. At the same time, the rotating component 51 drives the storage box 41 to rotate. The centrifugal force generated when the storage box 41 rotates during the preliminary purification will generate water due to the reaction process, resulting in the preliminary purified hydrogen fluoride and hydrogen sulfide gases containing moisture. The moisture in the hydrogen fluoride and hydrogen sulfide gases after preliminary purification by centrifugal force can be discharged through the water seepage hole 411 to solve the problem that moisture occupies the pores of the adsorbent, thereby affecting the adsorption capacity of hydrogen fluoride and hydrogen sulfide gases.

[0039] It should also be noted that the moisture in hydrogen fluoride and hydrogen sulfide gases can also be discharged by squeezing the adsorbent. However, since the adsorbent usually relies on its porous structure to adsorb gas, physical squeezing may destroy these pores, resulting in damage to its structure and a decrease in adsorption capacity. Therefore, the present invention uses centrifugal method to discharge moisture.

[0040] Further, refer to the instructions attached Figure 2 and Figure 3 An air inlet pipe 42 and an air outlet pipe 43 are provided on the storage box 41. The air inlet end of the air inlet pipe 42 and the air outlet end of the air outlet pipe 43 are both rotatably connected to a connecting pipe 53, and the two connecting pipes 53 are fixedly arranged in the spray tower 1. The bottom end of the connecting pipe 53 connected to the air inlet pipe 42 is fixedly provided with an air hood 54, and the output end of the rotating component 51 is connected to the air outlet pipe 43.

[0041] It should be noted that by providing two fixed connecting pipes 53 and rotatably connecting the two connecting pipes 53 to the air inlet pipe 42 and the air outlet pipe 43 respectively, the storage box 41 can be rotated, so that the storage box 41 can be driven to rotate by the rotating component 51, so that the water in the hydrogen fluoride and hydrogen sulfide gases can be discharged through the centrifugal force during rotation.

[0042] Further, refer to the instructions attached Figure 3 and Figure 7 The centrifugal mechanism 5 further includes a water storage box 52 , which is fixedly mounted on the agent storage box 41 , and the water seepage holes 411 opened on the agent storage box 41 are all located on the inner side of the water storage box 52 .

[0043] It should be noted that, by providing the water storage box 52 , the discharged water can be collected by the water storage box 52 , and a drain pipe can be provided on the water storage box 52 to facilitate the discharge of water from the water storage box 52 .

[0044] In the above technical solution, since hydrogen fluoride and hydrogen sulfide gases generate water when reacting with sodium hydroxide solution, part of the water will be adsorbed on the hydrogen fluoride and hydrogen sulfide gases to moisten the hydrogen fluoride and hydrogen sulfide gases, and the remaining water will mix with the sodium hydroxide solution sprayed during purification and flow to the bottom of the tower. In order to save resources, the sodium hydroxide solution is usually collected and reused. However, at this time, the water generated during the reaction process will mix with the sodium hydroxide solution, resulting in excess water in the sodium hydroxide solution, which will cause the concentration of the sodium hydroxide solution to decrease due to the presence of water. As a result, the reaction purification effect of hydrogen fluoride and hydrogen sulfide gases will be affected due to the decrease in the concentration of the sodium hydroxide solution. For this reason, the present invention also proposes a heating mechanism 6, which heats the sodium hydroxide solution after the reaction to evaporate the water in the sodium hydroxide solution to increase the concentration of the sodium hydroxide solution, ensure the reaction purification effect of hydrogen fluoride and hydrogen sulfide gases, improve the utilization rate of the sodium hydroxide solution, and reduce the replacement frequency of the sodium hydroxide solution.

[0045] For details, please refer to the attached manual. Figure 2 A heating mechanism 6 is also provided in the spray tower 1. The heating mechanism 6 includes a heating component 62. The heating component 62 is fixedly provided in the spray tower 1. A liquid guide plate 61 is fixedly provided in the spray tower 1. The heating component 62 is located below the liquid guide plate 61. A liquid inlet 611 is provided on the liquid guide plate 61. An exhaust pipe 63 is also provided on the side of the spray tower 1, and the air inlet end of the exhaust pipe 63 is located below the liquid guide plate 61.

[0046] It should be noted that the heating component 62 is an electric heating tube. The reacted sodium hydroxide solution flows onto the liquid guide plate 61 and flows to the bottom of the tower through the liquid inlet 611. At this time, the reacted sodium hydroxide solution is heated by energizing the electric heating tube to evaporate the water in the sodium hydroxide solution, and the water vapor formed by evaporation is discharged from the spray tower 1 through the exhaust pipe 63, thereby improving the utilization rate of the sodium hydroxide solution and reducing the replacement frequency of the sodium hydroxide solution.

[0047] In the above technical solution, the hydrogen fluoride and hydrogen sulfide gases are further purified by the adsorbent, and the storage box 41 is driven to rotate by the centrifugal mechanism 5, and the moisture in the hydrogen fluoride and hydrogen sulfide gases is discharged from the storage box 41 by centrifugal force to solve the effect of moisture on the adsorption capacity of the adsorbent. However, in order to avoid the problem that the centrifugal mechanism 5 is difficult to discharge the moisture when the moisture in the hydrogen fluoride and hydrogen sulfide gases is small, the present invention sets the storage box 41 in an annular shape, and the adsorbent is set in the annular channel of the storage box 41, and the diameter of the annular channel is set to be small, so as to facilitate the discharge of moisture from the storage box 41. However, since the diameter of the annular channel is set to be small, the adsorbent is difficult to discharge from the storage box 41. The adsorbent is in the annular channel. When hydrogen fluoride and hydrogen sulfide gases enter the storage box 41 from the air inlet pipe 42, since the adsorbent can only be in the annular channel of the storage box 41, when the adsorbent purifies hydrogen fluoride and hydrogen sulfide gases, the adsorption pressure of the adsorbent at the air inlet position of the storage box 41 will be large, causing this part of the adsorbent to be easily saturated, affecting its service life, and requiring frequent replacement of the adsorbent, affecting work efficiency. For this reason, the present invention also proposes an adjustment mechanism 7 for driving the storage box 41 to rotate. After the adsorbent has been used for a period of time, when hydrogen fluoride and hydrogen sulfide gases enter the storage box 41, the initial contact position of the gas and the adsorbent is adjusted.

[0048] For details, please refer to the attached manual. Figures 4 to 6 as well as Figure 10 , the spray tower 1 is also provided with an adjusting mechanism 7, which includes a ring plate 71. The ring plate 71 is located on the inner side of the storage box 41, and the storage box 41 can rotate on the outer surface of the ring plate 71. A plurality of communicating holes 412 arranged in a circular array are provided on the inner side of the storage box 41. Two air vents 711 are provided on the ring plate 71. The air inlet pipe 42 and the air outlet pipe 43 are fixedly provided on the ring plate 71. The air inlet pipe 42 and the air outlet pipe 43 are respectively connected to the corresponding air vents 711, and the two air vents 711 are respectively connected to the corresponding communicating holes 412. The adjusting mechanism 7 rotates on the surface of the ring plate 71 through the storage box 41 to adjust When hydrogen fluoride and hydrogen sulfide gases enter the storage box 41, the initial contact position between the gas and the adsorbent, a connecting shaft 72 and a support rod 521 are fixedly provided on the water storage box 52, a bevel gear 73 is fixedly provided on the connecting shaft 72, a support ring 74 is fixedly provided in the spray tower 1, a sliding ring 75 is rotatably provided in the support ring 74, the support rod 521 is fixedly provided on the sliding ring 75, the end of the bevel gear 73 is rotatably provided on the sliding ring 75, a gear ring 76 is movably placed on the sliding ring 75, the bevel gear 73 is meshed with the gear ring 76, and a clamping assembly 77 is also provided in the spray tower 1, the clamping assembly 77 is used to clamp the gear ring 76 in position.

[0049] It should be noted that, during the purification process of hydrogen fluoride and hydrogen sulfide gas, when the storage box 41 is driven to rotate, since the water storage box 52 is fixedly mounted on the storage box 41, the water storage box 52 rotates synchronously with the rotation of the storage box 41, and the connecting shaft 72 is fixedly provided on the water storage box 52, so the bevel gear 73 provided on the connecting shaft 72 can perform orbital motion with the rotation of the storage box 41, and since the gear ring 76 is placed on the sliding ring 75, and the bevel gear 73 and the gear ring 76 are in meshing state, the gear ring 76 can perform orbital motion synchronously with the connecting shaft 72. The gear ring 76 is in meshing state with the gear ring 76, so the gear ring 76 rotates by meshing with the gear ring 76, and the water storage box 52 drives the storage box 41 to rotate through the connecting shaft 72. Figure 10 As shown in the middle left figure, position a is the initial contact position of hydrogen fluoride and hydrogen sulfide gases with the adsorbent before the storage box 41 rotates. After the storage box 41 rotates to the specified position, the specified position is after the storage box 41 rotates, when the two vent holes 711 and other corresponding connecting holes 412 are in a connected state, the fixation of the gear ring 76 can be released, and the initial contact position of hydrogen fluoride and hydrogen sulfide gases with the adsorbent is changed, thereby changing the subsequent contact position of hydrogen fluoride and hydrogen sulfide gases with the adsorbent, and solving the problem that the adsorption pressure at the initial contact position between the gas in the adsorbent and the adsorbent is large, which easily causes saturation of this part of the adsorbent, resulting in the need to frequently replace the adsorbent, which affects work efficiency.

[0050] It should also be noted that since the diameter of the annular channel in the storage box 41 is set to be small and an adsorbent is also provided in the annular channel, in order to prevent the gas from having difficulty flowing from the storage box 41, a fan can also be provided at the air inlet and outlet ends of the storage box 41 to facilitate the circulation of the gas.

[0051] It should also be noted that the adjustment mechanism 7 can also be set to install a motor on the sliding ring 75, but since the motor needs to rotate synchronously with the rotation of the storage box 41 during the purification process, the motor needs to be a radio motor (the radio motor provides electrical energy through a built-in energy supply system without the need for an external power cord to avoid the problem of power cord entanglement during rotation), and by connecting the output end of the motor to the end of the connecting shaft 72, the rotation accuracy of the motor can be guaranteed when controlling the rotation of the storage box 41.

[0052] Further, refer to the instructions attached Figure 8The clamping assembly 77 includes two groups, and the two groups of clamping assemblies 77 are symmetrically arranged. A power component 771 is fixedly installed on the spray tower 1, and a clamping plate 772 is installed at the output end of the power component 771. The two clamping plates 772 are respectively located on both sides of the gear ring 76.

[0053] It should be noted that the power component 771 is a cylinder, which drives the two clamping plates 772 to move synchronously towards each other through the two cylinders, thereby clamping and fixing the gear ring 76 to facilitate the clamping and fixing of the gear ring 76.

[0054] In the above technical solution, the storage box 41 is set to be annular, the adsorbent is set in the annular channel of the storage box 41, and the initial contact position of the gas and the adsorbent is adjusted by the regulating mechanism 7 when the hydrogen fluoride and hydrogen sulfide gases enter the storage box 41 to ensure the adsorption effect. However, since it is set to be annular, when the gas enters, it is caused to be divided into two parts, circulated in the storage box 41, and then discharged from the storage box 41 through the outlet pipe 43. In this process, since the initial contact position of the gas and the adsorbent is adjusted, the adsorbent at the outlet end position of the gas in the storage box 41 will also rotate with the storage box 41, thereby When the adsorbent moves away from the air inlet end of the storage box 41, the adsorbent at the air outlet end of the storage box 41 will also move away from the air outlet end of the storage box 41, and the adsorbent at other positions will also move to the air outlet end of the storage box 41. If the gas is divided into two parts, passes through the adsorbent and is discharged, then at this time, after adjustment, the adsorbent rotated to the air outlet end of the storage box 41 will be the adsorbent that has purified the gas, and its adsorption capacity is relatively lower than that of the adsorbent that has not purified the gas, thus causing the problem of affecting the adsorption effect. For this reason, the present invention is provided with a guide plate 8 in both the air outlet end of the air inlet pipe 42 and the air inlet end of the air outlet pipe 43 to guide the flow direction of the gas in the storage box 41.

[0055] For details, please refer to the attached manual. Figure 9 A guide plate 8 is provided in the air outlet end of the air inlet pipe 42 and the air inlet end of the air outlet pipe 43, and the guide plate 8 is used to guide the direction of gas entering and exiting the storage box 41.

[0056] It should be noted that, by arranging a guide plate 8 at the outlet end of the air inlet pipe 42 and the air inlet end of the air outlet pipe 43, and guiding the direction of the gas in and out of the storage box 41 through the guide plate 8, the gas circulates in the storage box 41 only in half of the annular channel in the storage box 41. This can solve the problem that when the gas enters the storage box 41, the gas is divided into two parts and passes through the adsorbent arranged in a ring shape, reducing the flow of gas from the other half of the annular channel to ensure the adsorption effect of the adjusted adsorbent.

[0057] Furthermore, the spraying mechanism 3 includes an alkali liquid tank 31, and a liquid pumping component 32 is provided on one side of the alkali liquid tank 31. The liquid inlet end of the liquid pumping component 32 is connected to the alkali liquid tank 31, and the liquid outlet end of the liquid pumping component 32 is connected to a liquid supply pipe 33. The liquid outlet end of the liquid supply pipe 33 extends into the spray tower 1 and is connected to an annular pipe 34. The annular pipe 34 is fixedly arranged in the spray tower 1, and the inner side of the annular pipe 34 is fixedly connected to multiple spray heads 341.

[0058] It should be noted that the liquid extraction component 32 is a water pump, which extracts the sodium hydroxide solution in the alkali liquid tank 31 through the water pump, and sprays the sodium hydroxide solution on the hydrogen fluoride and hydrogen sulfide gases through the liquid delivery pipe 33, the ring pipe 34 and the spray head 341 to achieve purification of the hydrogen fluoride and hydrogen sulfide gases.

[0059] Further, refer to the instructions attached Figure 3 The rotating assembly 51 includes a driving member 511 , a driving gear 512 is installed at the output end of the driving member 511 , a driven gear 513 is fixedly sleeved on the outlet pipe 43 , and the driving gear 512 is meshed with the driven gear 513 .

[0060] It should be noted that the driving member 511 is a motor, which can be fixedly mounted on the spray tower 1. The motor drives the driving gear 512 to rotate, so that the driving gear 512 drives the driven gear 513 to rotate, which can drive the air outlet pipe 43 to rotate, so as to realize the rotation of the storage box 41. When the storage box 41 rotates, water can be discharged from the storage box 41 under the action of centrifugal force.

[0061] The above embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A gas treatment device for producing polytetrafluoroethylene microporous membranes, characterized in that: include: A spray tower (1), wherein an air supply pipe (11) is provided at an air inlet end of the spray tower (1), and the air supply pipe (11) is used to pass hydrogen fluoride and hydrogen sulfide gas into the interior of the spray tower (1); a spray mechanism (3) is further provided in the spray tower (1), and the spray mechanism (3) is used to purify the hydrogen fluoride and hydrogen sulfide gas; and an air induction component (2) is connected to an air outlet end of the spray tower (1), and the air induction component (2) is used to guide the purified gas to discharge from the spray tower (1); The spray tower (1) is further provided with an adsorption mechanism (4), which is provided between the spray mechanism (3) and the gas outlet of the spray tower (1). The adsorption mechanism (4) includes a storage box (41), in which adsorbent is stored. The adsorption mechanism (4) is used to further adsorb and purify the gas after spray purification. A centrifugal mechanism (5) is further provided in the spray tower (1), the centrifugal mechanism (5) comprising a rotating assembly (51), a plurality of water seepage holes (411) being evenly formed on the outer surface of the agent storage box (41), the rotating assembly (51) being used to drive the agent storage box (41) to rotate, and to discharge moisture in the hydrogen fluoride and hydrogen sulfide gases out of the agent storage box (41) through the water seepage holes (411) by centrifugal force; The spray tower (1) is further provided with an adjustment mechanism (7), the adjustment mechanism (7) comprising a ring plate (71), the ring plate (71) being located on the inner side of the agent storage box (41), and the agent storage box (41) being rotatable on the outer surface of the ring plate (71), the inner side of the agent storage box (41) being provided with a plurality of communicating holes (412) arranged in a circular array, the ring plate (71) being provided with two vent holes (711), the air inlet pipe (42) and the air outlet pipe (43) are fixedly arranged on the ring plate (71), the air inlet pipe (42) and the air outlet pipe (43) are respectively connected to the corresponding air vents (711), and the two air vents (711) are respectively connected to the corresponding communication holes (412), and the regulating mechanism (7) rotates on the surface of the ring plate (71) through the storage box (41) to regulate the initial contact position of the gas and the adsorbent when the hydrogen fluoride and hydrogen sulfide gases enter the storage box (41); A guide plate (8) is provided in both the air outlet end of the air inlet pipe (42) and the air inlet end of the air outlet pipe (43), and the guide plate (8) is used to guide the direction of gas entering and exiting the agent storage box (41).

2. A gas processing equipment for producing polytetrafluoroethylene microporous membranes according to claim 1, characterized in that: The storage box (41) is provided with an air inlet pipe (42) and an air outlet pipe (43); the air inlet end of the air inlet pipe (42) and the air outlet end of the air outlet pipe (43) are both rotatably connected to a connecting pipe (53), and the two connecting pipes (53) are both fixedly arranged in the spray tower (1); the bottom end of the connecting pipe (53) connected to the air inlet pipe (42) is fixedly provided with an air induced hood (54); and the output end of the rotating assembly (51) is connected to the air outlet pipe (43).

3. A gas processing equipment for producing polytetrafluoroethylene microporous membranes according to claim 2, characterized in that: The centrifugal mechanism (5) further comprises a water storage box (52), wherein the water storage box (52) is fixedly mounted on the agent storage box (41), and the water seepage holes (411) provided on the agent storage box (41) are all located on the inner side of the water storage box (52).

4. A gas processing equipment for producing polytetrafluoroethylene microporous membranes according to claim 3, characterized in that: The spray tower (1) is further provided with a heating mechanism (6), the heating mechanism (6) comprising a heating assembly (62), the heating assembly (62) being fixedly arranged in the spray tower (1), a liquid guide plate (61) being fixedly arranged in the spray tower (1), the heating assembly (62) being located below the liquid guide plate (61), the liquid guide plate (61) being provided with a liquid inlet (611), an exhaust pipe (63) being further provided on the side of the spray tower (1), and an air inlet end of the exhaust pipe (63) being located below the liquid guide plate (61).

5. The gas processing equipment for producing polytetrafluoroethylene microporous membranes according to claim 4, characterized in that: A connecting shaft (72) and a support rod (521) are fixedly provided on the water storage box (52); a bevel gear (73) is fixedly provided on the connecting shaft (72); a support ring (74) is fixedly provided in the spray tower (1); a sliding ring (75) is rotatably provided in the support ring (74); the support rod (521) is fixedly provided on the sliding ring (75); the end of the bevel gear (73) is rotatably provided on the sliding ring (75); a gear ring (76) is movably provided on the sliding ring (75); the bevel gear (73) is meshed with the gear ring (76); a clamping assembly (77) is further provided in the spray tower (1); the clamping assembly (77) is used to clamp and position the gear ring (76).

6. The gas processing equipment for producing polytetrafluoroethylene microporous membranes according to claim 5, characterized in that: The clamping assembly (77) includes two groups, and the two groups of clamping assemblies (77) are symmetrically arranged. A power component (771) is fixedly installed on the spray tower (1). A clamping plate (772) is installed at the output end of the power component (771). The two clamping plates (772) are respectively located on both sides of the gear ring (76).

7. A gas processing equipment for producing polytetrafluoroethylene microporous membranes according to claim 6, characterized in that: The spray mechanism (3) comprises an alkali liquid tank (31), a liquid pumping assembly (32) is provided on one side of the alkali liquid tank (31), a liquid inlet end of the liquid pumping assembly (32) is connected to the alkali liquid tank (31), a liquid outlet end of the liquid pumping assembly (32) is connected to a liquid delivery pipe (33), a liquid outlet end of the liquid delivery pipe (33) extends into the spray tower (1) and is connected to a ring pipe (34), the ring pipe (34) is fixedly arranged in the spray tower (1), and a plurality of spray heads (341) are fixedly connected to the inner side of the ring pipe (34).

8. The gas processing equipment for producing polytetrafluoroethylene microporous membranes according to claim 7, characterized in that: The rotating assembly (51) comprises a driving member (511), an output end of the driving member (511) is provided with a driving gear (512), a driven gear (513) is fixedly sleeved on the air outlet pipe (43), and the driving gear (512) is meshed with the driven gear (513).

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