A synthetic scrubber for tert-butyl carbonate production

Abstract

The present invention relates to the technical field of waste gas purification, and specifically to a synthetic scrubber for tertiary carbonic acid production, comprising: a bottom plate; a scrubber assembly, wherein the scrubber assembly comprises a tower body fixedly mounted on the upper end surface of the bottom plate, and a partition is fixedly mounted on the inner wall of the tower body, wherein the partition divides the tower body into a primary filtering space and a secondary filtering space from top to bottom, and a packing layer fixed to the inner wall of the tower body is arranged in the primary filtering space. The present invention detects the gas flow rate of the intake air, and allows the rubber ring sheet to be stretched evenly, so that the inner wall diameter of the rubber ring sheet is reduced, and the stretched rubber ring sheet will block the packing layer arranged on the outermost layer, so that the dissolved liquid only passes through the unblocked part of the middle area of ​​the packing layer when sprayed from top to bottom, and the gas only passes through the unblocked part of the middle area when flowing upward from the bottom end of the tower body, which can concentrate the area where the dissolved liquid and the gas flow in the packing layer, making the dissolution area more concentrated.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas purification, and in particular to a synthetic gas washing tower for producing tert-butyl carbonate. Background Art

[0002] During the production process of tertiary carbonic acid, there may be unreacted raw gas and by-product gas (such as dust, tar, acid gas, etc.) generated during the reaction. The main function of the scrubber is to remove impurities in these gases. Through the scrubbing operation, the gas can be purified to prevent the raw gas and impurities from having adverse effects on subsequent production links or equipment.

[0003] When treating the gas entering the scrubber, the scrubber removes acidic gas through gas-liquid contact and neutralization reaction. The acidic gas enters the tower and is fully contacted with the alkaline solution. The acidic components dissolve and undergo a neutralization reaction to generate salt and water, thereby reducing the acidity of the gas, such as a sulfuric acid scrubber disclosed in publication number CN118384677B. In the gas scrubber of the prior art, when the incoming gas flow is relatively small and the flow of the dissolved liquid is large, the excess dissolved liquid may cause the formation of foam. When the incoming gas flow is relatively small and the flow of the dissolved liquid is large, the liquid is prone to generate bubbles under the impact of the gas. Such foam will not only hinder the flow of the gas, but may also significantly affect the washing effect and reduce the efficiency of removing pollutants in the gas. In addition, the generation of foam will increase the pressure inside the equipment, resulting in obstruction of gas flow and formation of local blockage. In severe cases, such blockage may prevent the gas from flowing normally, thereby causing a further decrease in solubility and fluidity. Overall, the mismatch between gas and liquid flow not only affects the efficiency of the mass transfer process, but may also pose a threat to the operating safety of the equipment. At the same time, unreasonable flow ratios will increase operating costs, reduce overall economy, and affect the long-term benefits of the equipment. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a synthetic scrubbing tower for the production of tert-butyl carbonate, which can effectively solve the problem in the prior art that there is no area of ​​the gas flow passing through the packing layer according to the size of the gas flow.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] The present invention provides a synthetic scrubber for producing tert-butyl carbonate, comprising:

[0007] Base plate;

[0008] A scrubbing assembly, the scrubbing assembly comprising a tower body fixedly mounted on the upper end surface of a bottom plate, a partition fixedly mounted on the inner wall of the tower body, the partition dividing the tower body into a primary filtering space and a secondary filtering space from top to bottom, a packing layer fixed to the inner wall of the tower body is arranged in the primary filtering space, the packing layer has a plurality of packing areas sequentially slidably sleeved inside and outside, and the packing area is an annular area, and every two adjacent packing areas are elastically connected, and an activated carbon layer fixed to the inner wall of the tower body is arranged in the secondary filtering space;

[0009] A dissolving component comprises a rubber ring sheet arranged at the upper and lower ends of a packing layer, an elastic connecting ring is fixedly installed on the inner wall of the rubber ring sheet, a plurality of rubber connecting frames are evenly installed on the inner wall of the elastic connecting ring, a fixed block is rotatably installed at one end of the plurality of rubber connecting frames, the fixed block is fixed to the upper and lower ends of the innermost packing layer, the dissolving component drives the fixed block to rise and fall according to the exhaust gas flow entering the tower body, and during the lifting process, the fixed block drives the elastic connecting ring and the rubber ring sheet to contract or stretch through the plurality of rubber connecting frames to change the action area of ​​the neutralizing liquid and the exhaust gas in the packing layer.

[0010] Preferably, a first air inlet pipe is connected to the lower portion of the outer wall of the tower body, the first air inlet pipe is connected to the primary filtration space, a water tank is connected to the lower portion of the outer wall of the tower body, a heating element is arranged in the water tank, a water supply pipe is connected to one side of the water tank, a water pump is fixedly installed on the water supply pipe, the upper end of the water supply pipe passes through the tower body and is fixedly installed with a connecting head, the lower end of the connecting head is connected to a sprinkler plate, a plurality of nozzles are fixedly installed in a circular array at the lower end of the sprinkler plate, and an air outlet groove is provided in the sprinkler plate.

[0011] Preferably, a bracket is fixedly installed on the inner wall of the tower body and between the sprinkler plate and the packing layer, a fixed disk is fixedly installed on the lower end surface of the bracket, a rotating shaft is rotatably installed in the bracket, the lower end of the rotating shaft passes through the fixed disk and is fixedly connected to the rotating disk, the rotating disk and the fixed disk are airtightly rotatably connected, an external frame is fixedly installed on the outer wall of the tower body, a first rotating drive member is fixedly installed on one side of the external frame, the output end of the first rotating drive member passes through the external frame and is fixedly connected to a transmission rod, the transmission rod passes through the tower body and extends to the interior thereof, the transmission rod and the rotating shaft are driven by a bevel gear pair, a plurality of first exhaust grooves are provided in a circumferential array in the fixed disk, and a plurality of second exhaust grooves are provided in a circumferential array in the rotating disk.

[0012] Preferably, a second rotating drive component is fixedly installed on the lower end surface of the base plate, and the output end of the second rotating drive component passes through the base plate and is fixedly connected to a screw sleeve, the screw sleeve passes through the tower body and extends into the interior thereof, a threaded rod is threadedly installed on the inner wall of the screw sleeve, and the upper end surface of the threaded rod is rotatably connected to the fixed block.

[0013] Preferably, it also includes a measuring component, which includes two limit frames symmetrically installed on the outer wall of the first intake pipe, square corrugated expansion tubes are fixedly installed in the two limit frames, and the square corrugated expansion tubes are connected to the first intake pipe. A C-shaped bracket is fixedly installed on the outer side of the limit frame, and a sliding plate is fixedly installed on the end of the square corrugated expansion tube away from the first intake pipe, and a sliding resistor is fixedly installed on the lower end surface of the C-shaped bracket. The sliding resistor includes a resistance rod and a sliding piece slidably connected to the resistance rod, the sliding piece passes through the C-shaped bracket and is fixed to the sliding plate, and the sliding resistor is electrically connected to the first rotating drive member, the second rotating drive member, and the water pump through the controller.

[0014] Preferably, one end of the first air inlet pipe is connected to a second air inlet pipe, the second air inlet pipe penetrates the tower body and extends to the interior thereof, and a check valve is fixedly installed in the second air inlet pipe.

[0015] Preferably, it also includes a heat recovery component, which includes an outlet pipe and an exhaust pipe respectively connecting the primary filter space and the secondary filter space, one end of the outlet pipe and the exhaust pipe is connected to a transfer box, a lifting plate is airtightly and slidably installed in the transfer box, a spring is fixedly installed between the lifting plate and the transfer box, a sealing block is fixedly installed in the transfer box and at a position corresponding to the lifting plate, a temperature conducting rod is fixedly installed at the lower end of the transfer box, the upper end of the temperature conducting rod passes through the transfer box and extends to the interior thereof, the lower end of the temperature conducting rod passes through the first air inlet pipe and is fixedly installed with a heat dissipation ring, the outer side of the temperature conducting rod is provided with a thermal insulation round tube, and the two ends of the thermal insulation round tube are respectively fixed to the transfer box and the first air inlet pipe.

[0016] Preferably, a heat sink is fixedly installed at the upper position of the inner wall of the transfer box, U-shaped plates are fixedly installed on both sides of the two sliding plates, and teeth are opened in the U-shaped plates. A fan is rotatably installed on the upper end of the C-shaped bracket, and the lower end of the fan passes through the C-shaped bracket and is fixedly connected with rotating teeth, and the rotating teeth are meshed with the teeth. Two support plates are symmetrically installed on the upper end of the C-shaped bracket and at the corresponding fan positions, and an air collecting hood is fixedly installed on the upper end of the support plate. The upper end of the air collecting hood is connected to an air supply pipe, and the upper end of the air supply pipe is connected to the transfer box.

[0017] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects:

[0018] First, by detecting the gas flow of the intake air, the second rotating drive member will drive the screw sleeve to rotate and drive the threaded rod to rotate and descend. The descending threaded rod drives the fixed block and the innermost packing layer to descend, and drives the rubber ring pieces arranged at the upper and lower ends of the packing layer to stretch through the fixed block, the rubber connecting frame, and the elastic connecting ring. The elastic connecting ring arranged in an annular shape will evenly stretch the rubber ring piece to increase or reduce the inner wall diameter of the rubber ring piece, and the stretched rubber ring piece will block the packing layer arranged at the outermost layer, so that when the dissolved liquid is sprayed from top to bottom, it only passes through the unobstructed part of the middle area of ​​the packing layer, and when the gas flows upward from the bottom end of the tower body, it also only passes through the unobstructed part of the middle area. This can concentrate the area where the dissolved liquid and gas flow in the packing layer, making the dissolution area more concentrated.

[0019] Second, the gas flow rates transported into the tower body through the first air inlet pipe are different. When the gas flow rate changes, the gas volume difference formed in the first air inlet pipe will change, thereby causing the square corrugated telescopic tube to expand and drive the sliding plate to slide in the C-shaped bracket, thereby changing the resistance value of the sliding rheostat accordingly. The change in the resistance value of the sliding rheostat will act on the water pump, the second rotating drive component, and the first rotating drive component through the controller to adjust the flow rate of the dissolved liquid, the dissolution area, and the dissolution time of the gas and dissolved liquid according to the air intake flow rate.

[0020] Third, by setting up primary filtration and secondary filtration, the dissolved liquid is heated in the primary filtration interval to allow the dissolved liquid to dissolve the gas faster. In this process, the by-products produced by heated dissolution are removed through secondary filtration and finally discharged from the tower body, thereby accelerating the dissolution efficiency of the gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

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

[0023] Figure 2 It is a cross-sectional structural schematic diagram of the present invention;

[0024] Figure 3 It is a schematic diagram of the internal structure of the air washing component of the present invention;

[0025] Figure 4 It is a schematic diagram of the exploded structure of the fixed disk of the present invention;

[0026] Figure 5It is a schematic diagram of the cross-sectional structure of the packing layer of the present invention;

[0027] Figure 6 for Figure 5 The enlarged structural diagram at A in the middle;

[0028] Figure 7 It is a schematic diagram of the structure of the measuring component of the present invention;

[0029] Figure 8 It is a schematic cross-sectional structural diagram of the transfer box of the present invention;

[0030] Fig. 9 for Figure 8 Enlarged structural diagram at B in the middle.

[0031] Figure numerals: 1, bottom plate; 2, air washing assembly; 201, first air inlet pipe; 202, tower body; 203, packing layer; 204, activated carbon layer; 205, partition; 206, water tank; 207, water pipe; 208, water pump; 209, connector; 210, water sprinkling plate; 211, bracket; 212, fixed disk; 213, rotating disk; 214, rotating shaft; 215, external frame; 216, first rotating drive member; 217, transmission rod; 3, dissolving assembly; 301, second rotating drive member; 302, screw sleeve; 303, threaded rod; 304, rubber ring; 305, fixed block; 306, rubber connecting frame; 3 07. Elastic connecting ring; 4. Measuring component; 401. Second air inlet pipe; 402. Check valve; 403. Limiting frame; 404. Square corrugated telescopic pipe; 405. Sliding plate; 406. C-shaped bracket; 407. Sliding rheostat; 5. Heat recovery component; 501. Transfer box; 502. Air outlet pipe; 503. Exhaust pipe; 504. Heat sink; 505. Lifting plate; 506. Sealing block; 507. Spring; 508. Temperature conducting rod; 509. Insulating round pipe; 510. Heat dissipation ring; 511. U-shaped plate; 512. Rotating gear; 513. Fan; 514. Support plate; 515. Wind hood; 516. Air supply pipe. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] The present invention will be further described below in conjunction with the embodiments.

[0034] Example: Refer to Figures 1 to 9, a synthetic scrubber for producing tert-butyl carbonate, comprising:

[0035] Bottom plate 1;

[0036] The scrubber assembly 2 includes a tower body 202 fixedly mounted on the upper end surface of the bottom plate 1, a partition 205 fixedly mounted on the inner wall of the tower body 202, and the partition 205 divides the tower body 202 into a primary filtering space and a secondary filtering space from top to bottom. A packing layer 203 fixed to the inner wall of the tower body 202 is arranged in the primary filtering space, and the packing layer 203 has a plurality of packing areas which are sequentially slidably sleeved inside and outside, and the packing area is an annular area, and every two adjacent packing areas are elastically connected. An activated carbon layer 204 fixed to the inner wall of the tower body 202 is arranged in the secondary filtering space, and the packing layer 203 can be used with fiber fillers. After the dissolving liquid is sprayed onto the packing layer 203 from top to bottom, the gas enters the packing layer 203 and fully contacts with the dissolving liquid distributed on the surface of the packing layer 203. Such contact enables the components in the gas to be dissolved into the liquid to induce a chemical reaction, thereby achieving the removal or conversion of the gas;

[0037] Dissolution component 3, dissolution component 3, dissolution component 3 includes a rubber ring piece 304 arranged at the upper and lower ends of the packing layer 203, an elastic connecting ring 307 is fixedly installed on the inner wall of the rubber ring piece 304, a plurality of rubber connecting frames 306 are evenly installed on the inner wall of the elastic connecting ring 307, a fixed block 305 is installed at one end of the plurality of rubber connecting frames 306 for common rotation, the fixed block 305 is fixed to the upper and lower ends of the innermost packing layer 203, the dissolution component 3 drives the fixed block 305 to rise and fall according to the exhaust gas flow entering the tower body 202, and the fixed block 305 drives the elastic connecting ring 307 and the rubber ring piece 304 to contract or stretch through the plurality of rubber connecting frames 306 during the lifting process to change the action area of ​​the neutralizing liquid and the exhaust gas in the packing layer 203, the rubber ring piece 304 is made of fluororubber and silicone rubber, and has certain ductility and corrosion resistance. In the process of being driven to contract or stretch, the dissolution area of ​​the packing layer 203 can be increased or reduced, so that the gas and liquid are concentrated in the unblocked area of ​​the packing layer 203 for dissolution.

[0038] Reference Figures 2 to 3The lower part of the outer wall of the tower body 202 is connected with a first air inlet pipe 201, and the first air inlet pipe 201 is connected with the primary filtering space. The lower part of the outer wall of the tower body 202 is connected with a water tank 206, and a heating element is arranged in the water tank 206. One side of the water tank 206 is connected with a water delivery pipe 207, and a water pump 208 is fixedly installed on the water delivery pipe 207. The upper end of the water delivery pipe 207 passes through the tower body 202 and is fixedly installed with a connector 209. The lower end of the connector 209 is connected with a sprinkler plate 210, and the lower end of the sprinkler plate 210 is connected with a sprinkler plate 210. A plurality of nozzles are fixedly installed in the end circumferential array, and an air outlet groove is opened in the watering plate 210. The nozzle arranged at the lower end of the watering plate 210 can spray the dissolved liquid evenly onto the packing layer 203. By setting the heating element, the dissolved liquid in the water tank 206 is heated, and the heating temperature can reach 40°C to 80°C. The heated dissolved liquid is evenly sprayed onto the packing layer 203 to heat the dissolved gas. The heated gas has higher energy, which can accelerate the collision with the liquid molecules and increase the reaction rate.

[0039] Reference Figures 2 to 3 A bracket 211 is fixedly installed on the inner wall of the tower body 202 and between the sprinkler plate 210 and the packing layer 203. A fixed disk 212 is fixedly installed on the lower end surface of the bracket 211. A rotating shaft 214 is rotatably installed in the bracket 211. The lower end of the rotating shaft 214 penetrates the fixed disk 212 and is fixedly connected with a rotating disk 213. The rotating disk 213 is rotatably connected to the fixed disk 212 in an airtight manner. An external frame 215 is fixedly installed on the outer wall of the tower body 202. A first rotating driving member 216 is fixedly installed on one side of the external frame 215. The output end of the first rotating driving member 216 penetrates the external frame 215 and is fixedly connected with a transmission rod 217. The transmission rod 217 penetrates the tower body 202 and extends to the inside thereof. The transmission rod 217 and the rotating shaft 214 are driven by a bevel gear pair. A plurality of first exhaust grooves are provided in an inner circumferential array of the fixed disk 212, and a plurality of second exhaust grooves are provided in an inner circumferential array of the rotating disk 213.

[0040] Reference Figures 5 and 6 A second rotating driving member 301 is fixedly installed on the lower end surface of the base plate 1. The output end of the second rotating driving member 301 passes through the base plate 1 and is fixedly connected to a screw sleeve 302. The screw sleeve 302 passes through the tower body 202 and extends to the interior thereof. A threaded rod 303 is threadedly installed on the inner wall of the screw sleeve 302. The upper end surface of the threaded rod 303 is rotatably connected to the fixed block 305.

[0041] Reference Figure 7, and also includes a measuring component 4, which includes two limiting frames 403 symmetrically installed on the outer wall of the first air inlet pipe 201, a square corrugated telescopic tube 404 is fixedly installed in the two limiting frames 403, the square corrugated telescopic tube 404 is connected to the first air inlet pipe 201, a C-shaped bracket 406 is fixedly installed on the outer side of the limiting frame 403, a sliding plate 405 is fixedly installed on the end of the square corrugated telescopic tube 404 away from the first air inlet pipe 201, and a sliding resistor 407 is fixedly installed on the lower end surface of the C-shaped bracket 406. The sliding resistor 407 includes a variable resistor rod and a sliding piece slidably connected to the variable resistor rod, and the sliding piece passes through the C-shaped bracket 406 and is connected to the first air inlet pipe 201. The sliding plate 405 is fixed, and the sliding rheostat 407 is electrically connected to the first rotating drive member 216, the second rotating drive member 301, and the water pump 208 through the controller. The measuring component 4 can measure the gas flow entering the first intake pipe 201, and the measurement result can be detected by the sliding rheostat 407 and the controller (the sliding rheostat 407 needs to be connected in series with a fixed resistor to form a voltage divider circuit, and the controller can measure the voltage after voltage division and calculate the resistance value of the sliding rheostat 407 according to Ohm's law), and act on the first rotating drive member 216, the second rotating drive member 301, and the water pump 208.

[0042] Reference Figure 7 One end of the first air inlet pipe 201 is connected to the second air inlet pipe 401 . The second air inlet pipe 401 penetrates the tower body 202 and extends to the inside thereof. A check valve 402 is fixedly installed in the second air inlet pipe 401 .

[0043] Reference Figures 8 to 9 , and also includes a heat recovery component 5, the heat recovery component 5 includes an outlet pipe 502 and an exhaust pipe 503 respectively connected to the primary filter space and the secondary filter space, one end of the outlet pipe 502 and the exhaust pipe 503 are connected to a transfer box 501, a lifting plate 505 is airtightly slidably installed in the transfer box 501, a spring 507 is fixedly installed between the lifting plate 505 and the transfer box 501, a sealing block 506 is fixedly installed in the transfer box 501 and at a position corresponding to the lifting plate 505, and a lower end of the transfer box 501 is fixedly installed The temperature conducting rod 508 has its upper end passing through the transfer box 501 and extending into the interior thereof, and its lower end passing through the first air inlet pipe 201 and fixedly mounted with a heat dissipation ring 510. An outer sleeve of the temperature conducting rod 508 is provided with a heat-insulating circular tube 509, and both ends of the heat-insulating circular tube 509 are respectively fixed to the transfer box 501 and the first air inlet pipe 201. The setting of the temperature conducting rod 508 can recover the heat of the gas entering the transfer box 501, and use the recovered heat to act on the heat dissipation ring 510 to preheat the gas.

[0044] Reference Figures 8 to 9A heat sink 504 is fixedly installed at the upper position of the inner wall of the transfer box 501, and U-shaped plates 511 are fixedly installed on both sides of the two sliding plates 405. A tooth groove is opened in the U-shaped plate 511. A fan 513 is rotatably installed on the upper end of the C-shaped bracket 406. The lower end of the fan 513 penetrates the C-shaped bracket 406 and is fixedly connected with a rotating tooth 512. The rotating tooth 512 is engaged with the tooth groove. Two support plates 514 are symmetrically installed at the upper end of the C-shaped bracket 406 and at the corresponding positions of the fan 513. An air collecting cover 515 is fixedly installed on the upper end of the support plate 514. The upper end of the air collecting cover 515 is connected to an air supply pipe 516, and the upper end of the air supply pipe 516 is connected to the transfer box 501.

[0045] The working principle of the present invention is as follows:

[0046] The gas is transported to the tower body 202 through the first air inlet pipe 201. In the process of the gas entering the tower body 202, the water pump 208 can pump the dissolved liquid stored in the water tank 206 to the connector 209 and spray it through the sprinkler plate 210. The sprayed dissolved liquid will flow into the packing layer 203 and contact with the gas entering and rising into the tower body 202. In this process, the dissolved liquid will be heated by the heating element. The heated dissolved liquid will promote the gas generated in the production process of hot tert-butyl carbonate to increase its solubility, making it easier to dissolve in the liquid phase and increase the reaction rate, especially in the subsequent reaction process, enhancing the kinetic energy of the reactants. Under high temperature conditions, tert-butyl carbonate undergoes isomerization. The gas undergoes chemical reaction to form carbonic acid of other structures, which can enter the transfer box 501 through the exhaust pipe 503 to increase the air pressure in the transfer box 501, push the lifting plate 505 to slide upward, and allow the gas to flow from between the lifting plate 505 and the sealing block 506 to the heat sink 504 for cooling, and finally enter the secondary filtration space through the outlet pipe 502 to be filtered through the activated carbon layer 204, and filter the by-products formed under high temperature conditions. When the dissolved gas enters the transfer box 501, it will heat the temperature conducting rod 508, and the heated temperature conducting rod 508 will transfer the temperature to the heat dissipation ring 510, and the heated heat dissipation ring 510 will preheat the gas entering the first air inlet pipe 201;

[0047] When the gas enters the tower body 202 through the first air inlet pipe 201, the gas will flow into the tower body 202 through the second air inlet pipe 401 and the check valve 402. The inner diameter of the first air inlet pipe 201 is larger than the inner diameter of the second air inlet pipe 401. When the gas flows, a gas volume difference will be formed in the first air inlet pipe 201 and the air pressure will increase. The increased air pressure will expand the square corrugated telescopic tube 404. The expanded square corrugated telescopic tube 404 will drive the sliding plate 405 to slide in the C-shaped bracket 406 and drive the sliding piece to move, so that the resistance value of the sliding rheostat 407 changes.

[0048] It should be noted that the gas flow rates transported into the tower body 202 through the first air inlet pipe 201 are different (the gas flow rate is mainly affected by many factors during the production process, including the operating state of the equipment, changes in temperature and pressure, and the progress of chemical reactions). When the gas flow rate changes, the gas volume difference and air pressure formed in the first air inlet pipe 201 will also change, so that the square corrugated telescopic tube 404 expands and drives the sliding plate 405 to slide and adjust in the C-shaped bracket 406, and the resistance value of the sliding rheostat 407 changes accordingly. The change in the resistance value of the sliding rheostat 407 will act on the water pump 208 through the controller, and the controller detects the change in the resistance value to control the power of the water pump 208, so that the flow rate of the dissolved liquid sprayed out and the ratio of the gas flow rate are adjusted;

[0049] The change in resistance value of the sliding rheostat 407 will also act on the second rotating drive member 301 through the controller, and the driving end of the second rotating drive member 301 will drive the screw sleeve 302 to rotate, and the rotating screw sleeve 302 will drive the threaded rod 303 to slide and descend, and the descending threaded rod 303 will drive the fixed block 305 and the innermost packing layer 203 to descend. In the process of the innermost packing layer 203 descending, the rubber arranged at the upper and lower ends of the packing layer 203 will be driven by the fixed block 305, the rubber connecting frame 306, and the elastic connecting ring 307. The ring sheet 304 is stretched, and the elastic connecting ring 307 arranged in an annular shape will stretch the rubber ring sheet 304 evenly, so that the inner wall diameter of the rubber ring sheet 304 is reduced, and the stretched rubber ring sheet 304 will block the packing layer 203 arranged on the outermost layer, so that the dissolved liquid only passes through the unblocked part of the middle area of ​​the packing layer 203 during the top-down spraying process, and the gas only passes through the unblocked part of the middle area during the upward flow from the inner bottom end of the tower body 202, which can concentrate the dissolved liquid and gas in the dissolution area of ​​the packing layer 203;

[0050] Similarly, the resistance change of the sliding rheostat 407 will also act on the first rotating driving member 216 through the controller, and the first rotating driving member 216 will drive the transmission rod 217 to rotate, and the rotating transmission rod 217 will drive the rotating disk 213 to rotate through the bevel gear pair and the rotating shaft 214, and the rotating rotating disk 213 will rotate at the lower end of the fixed disk 212, so that the first exhaust groove and the second exhaust groove are overlapped or misaligned. During the process of the first exhaust groove and the second exhaust groove being misaligned, the gas entering the bottom end of the tower body 202 cannot flow upward and accumulate pressure, so that the gas will increase the dissolution process in the packing layer 203, and the gas will further dissolve, and pass through the first air inlet pipe 201 The gas transported into the tower body 202 cannot be transported into the tower body 202 through the check valve 402, and the gas accumulated in the first air inlet pipe 201 will continuously increase the air pressure to expand the square corrugated telescopic tube 404 to drive the sliding plate 405 to slide, and the sliding sliding plate 405 will drive the U-shaped plate 511 to make the tooth groove mesh with the rotating tooth 512 and make the rotating tooth 512 rotate to drive the fan 513 to rotate, and the air flow generated by the rotation of the fan 513 will be transported to the transfer box 501 through the wind collecting cover 515 and the air supply pipe 516 to cool the heat sink 504, and when the first exhaust groove and the second exhaust groove overlap, the gas will flow upward through the first exhaust groove and the second exhaust groove;

[0051] It should be noted that after the first exhaust groove and the second exhaust groove are offset and overlapped, the gas is accumulated at the bottom of the tower body 202 and flows upward. The gas will flow from the first air inlet pipe 201 to the tower body 202 again, and the square corrugated telescopic tube 404 will expand again due to the air pressure difference. The gas accumulated in the first air inlet pipe 201 will re-enter the tower body 202 through the check valve 402 to be dissolved. In this process, the resistance value of the sliding rheostat 407 will change again.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A synthetic scrubber for the production of tert-butyl carbonate, characterized in that: include: Bottom plate (1); A scrubbing assembly (2), the scrubbing assembly (2) comprising a tower body (202) fixedly mounted on the upper end surface of a bottom plate (1), a partition (205) fixedly mounted on the inner wall of the tower body (202), the partition (205) dividing the tower body (202) into a primary filtering space and a secondary filtering space from top to bottom, a packing layer (203) fixed to the inner wall of the tower body (202) being arranged in the primary filtering space, the packing layer (203) having a plurality of packing areas sequentially slidably sleeved inside and outside, the packing areas being annular areas, and every two adjacent packing areas being elastically connected, and an activated carbon layer (204) fixed to the inner wall of the tower body (202) being arranged in the secondary filtering space; A dissolving component (3), the dissolving component (3) comprising a rubber ring piece (304) arranged at the upper and lower ends of a packing layer (203), an elastic connecting ring (307) being fixedly mounted on the inner wall of the rubber ring piece (304), a plurality of rubber connecting frames (306) being evenly mounted on the inner wall of the elastic connecting ring (307), a fixed block (305) being rotatably mounted at one end of the plurality of rubber connecting frames (306), the fixed block (305) being fixed to the upper and lower ends of the innermost packing layer (203), the dissolving component (3) driving the fixed block (305) to rise and fall according to the flow rate of exhaust gas entering the tower body (202), and during the rising and falling process, the fixed block (305) drives the elastic connecting ring (307) and the rubber ring piece (304) to contract or stretch through the plurality of rubber connecting frames (306) to change the action area of ​​the neutralizing liquid and the exhaust gas in the packing layer (203).

2. A synthetic scrubber for tert-butyl carbonate production according to claim 1, characterized in that: The lower portion of the outer wall of the tower body (202) is connected to a first air inlet pipe (201), the first air inlet pipe (201) is connected to a primary filtering space, the lower portion of the outer wall of the tower body (202) is connected to a water tank (206), a heating element is arranged in the water tank (206), one side of the water tank (206) is connected to a water delivery pipe (207), a water pump (208) is fixedly mounted on the water delivery pipe (207), the upper end of the water delivery pipe (207) passes through the tower body (202) and is fixedly mounted with a connector (209), the lower end of the connector (209) is connected to a water sprinkling plate (210), a plurality of nozzles are fixedly mounted in a circumferential array at the lower end of the water sprinkling plate (210), and an air outlet groove is provided in the water sprinkling plate (210).

3. A synthetic scrubber for tert-butyl carbonate production according to claim 2, characterized in that: A bracket (211) is fixedly installed on the inner wall of the tower body (202) and between the water sprinkling plate (210) and the packing layer (203); a fixed disk (212) is fixedly installed on the lower end surface of the bracket (211); a rotating shaft (214) is rotatably installed in the bracket (211); the lower end of the rotating shaft (214) passes through the fixed disk (212) and is fixedly connected to a rotating disk (213); the rotating disk (213) and the fixed disk (212) are airtightly rotatably connected; an external frame (214) is fixedly installed on the outer wall of the tower body (202); 5), a first rotating driving member (216) is fixedly installed on one side of the external frame (215), an output end of the first rotating driving member (216) passes through the external frame (215) and is fixedly connected to a transmission rod (217), the transmission rod (217) passes through the tower body (202) and extends into the interior thereof, the transmission rod (217) and the rotating shaft (214) are driven by a bevel gear pair, a plurality of first exhaust grooves are arranged in an inner circumferential array of the fixed disk (212), and a plurality of second exhaust grooves are arranged in an inner circumferential array of the rotating disk (213).

4. A synthetic scrubber for tert-butyl carbonate production according to claim 1, characterized in that: A second rotary drive member (301) is fixedly mounted on the lower end surface of the base plate (1); an output end of the second rotary drive member (301) passes through the base plate (1) and is fixedly connected to a screw sleeve (302); the screw sleeve (302) passes through the tower body (202) and extends into the interior thereof; a threaded rod (303) is threadedly mounted on the inner wall of the screw sleeve (302); and an upper end surface of the threaded rod (303) is rotatably connected to a fixed block (305).

5. A synthetic scrubber for tert-butyl carbonate production according to claim 2, characterized in that: The measuring assembly (4) further comprises two limiting frames (403) symmetrically mounted on the outer wall of the first air intake pipe (201), square corrugated telescopic tubes (404) being fixedly mounted inside the two limiting frames (403), the square corrugated telescopic tubes (404) being communicated with the first air intake pipe (201), and a C-shaped bracket (406) being fixedly mounted outside the limiting frames (403), the square corrugated telescopic tubes (404) being away from the first air intake pipe (201). A sliding plate (405) is fixedly mounted on one end of the C-shaped bracket (406), and a sliding rheostat (407) is fixedly mounted on the lower end surface of the C-shaped bracket (406). The sliding rheostat (407) comprises a resistance rod and a sliding piece slidably connected to the resistance rod. The sliding piece passes through the C-shaped bracket (406) and is fixed to the sliding plate (405). The sliding rheostat (407) is electrically connected to the first rotating drive member (216), the second rotating drive member (301), and the water pump (208) through a controller.

6. A synthetic scrubber for versatile carbonic acid production according to claim 2, characterized in that: One end of the first air inlet pipe (201) is connected to a second air inlet pipe (401), the second air inlet pipe (401) passes through the tower body (202) and extends into the interior thereof, and a check valve (402) is fixedly installed in the second air inlet pipe (401).

7. A synthetic scrubber for versatile carbonic acid production according to claim 5, characterized in that: The heat recovery component (5) further comprises a heat recovery component (5), the heat recovery component (5) comprising an air outlet pipe (502) and an exhaust pipe (503) respectively connected to the primary filter space and the secondary filter space, one end of the air outlet pipe (502) and the exhaust pipe (503) being connected to a transfer box (501), a lifting plate (505) being airtightly slidably mounted in the transfer box (501), a spring (507) being fixedly mounted between the lifting plate (505) and the transfer box (501), and a spring (507) being mounted in the transfer box (501) and corresponding to the lifting plate (505). A sealing block (506) is fixedly installed at the position, a temperature conducting rod (508) is fixedly installed at the lower end of the transfer box (501), the upper end of the temperature conducting rod (508) passes through the transfer box (501) and extends into the interior thereof, the lower end of the temperature conducting rod (508) passes through the first air inlet pipe (201) and is fixedly installed with a heat dissipation ring (510), the outer side of the temperature conducting rod (508) is provided with a heat-insulating circular tube (509), and the two ends of the heat-insulating circular tube (509) are respectively fixed to the transfer box (501) and the first air inlet pipe (201).

8. A synthetic scrubber for versatile carbonic acid production according to claim 7, characterized in that: A heat sink (504) is fixedly installed at an upper position of the inner wall of the transfer box (501); U-shaped plates (511) are fixedly installed on both sides of the two sliding plates (405); a tooth groove is provided in the U-shaped plate (511); a fan (513) is rotatably installed on the upper end of the C-shaped bracket (406); the lower end of the fan (513) passes through the C-shaped bracket (406) and is fixedly connected with a rotating tooth (512); the rotating tooth (512) is meshed with the tooth groove; two support plates (514) are symmetrically installed at the upper end of the C-shaped bracket (406) and at the positions corresponding to the fan (513); an air collecting cover (515) is fixedly installed on the upper end of the support plate (514); the upper end of the air collecting cover (515) is connected with an air supply pipe (516); the upper end of the air supply pipe (516) is connected with the transfer box (501).

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