Impurity removal tower and cleaning device thereof

Abstract

The invention discloses an impurity removal tower and a cleaning device thereof, and relates to the technical field of cleaning of impurity removal rectification equipment.The impurity removal tower comprises a tower body, a filler groove body and an elastic telescopic supporting structure, and the cleaning device of the impurity removal tower comprises a cleaning liquid circulating conveying mechanism and a lifting guide mechanism; the cleaning liquid circulating conveying mechanism comprises a piston liquid conveying mechanism and a driving motor, and the driving motor is used for driving the piston liquid conveying mechanism to operate and conveying cleaning liquid into the tower body. The driving motor enables the arranged rotating cam to rotate, the rotating cam continuously pushes the linkage baffle on the center lifting pipe, and the filler tank body is supported in the tower body through the elastic telescopic supporting piece, so that the filler tank body can oscillate up and down; the sprayed cleaning liquid is promoted to permeate into the deep layer of the filler layer and the deep layer of the scaling substances for reaction treatment, inertia force generated by oscillation destroys the adhesion interface of the scale layer and the filler, the scaling substances or other impurities are conveniently thrown out from the bottom of the filler layer, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning of impurity removal and distillation equipment, in particular to an impurity removal tower and a cleaning device thereof. Background Art

[0002] In the carbonate production process, it is necessary to first remove the light and heavy components of the purchased dimethyl carbonate, and the light and heavy components of the purchased ethanol, and then carry out reactive distillation, and separate and refine the distillation products. Finally, the light components of the ethyl methyl carbonate light removal tower and the diethyl carbonate light removal tower used in the process are transported to the impurity removal tower for relevant component removal treatment. The impurity removal tower used in this process is a packed distillation tower. Its long-term use will lead to specific pollutant problems such as polymer deposition, inorganic salt scaling and catalyst residues in the packing layer, so it is necessary to pass acid and alkali water for cleaning.

[0003] When cleaning the existing impurity removal tower, acid-added or alkaline water is introduced from the top of the tower body through a pipeline, so that the liquid passes through the packing layer and reacts with the accumulated or residual substances in the packing layer. The treated liquid flows back from the bottom of the tower body to the provided liquid storage tank, and then is transported to the top of the tower body again, and the treatment cycle is repeated.

[0004] The shortcomings of the existing packed impurity removal tower cleaning are: although the existing impurity removal tower can react and clean the scale or residue in the packing layer through the circulating reaction liquid, due to the certain density of the packing layer itself, when the reaction liquid is sprayed onto the packing layer, it can only rely on its own gravity to flow. Due to the distribution of the packing, the liquid tends to flow through the low-resistance path first, and the packing may be in other positions that are not easily exposed to the reaction cleaning liquid. In addition, the polymer or salt scale in the packing will clog the micropores, generating capillary force to "lock" the pollutants, and the cleaning liquid cannot penetrate into the scale layer. At the same time, some debris or reaction gas will also clog the gaps in the packing, which is not conducive to the flow of liquid through, affecting the cleaning effect and efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a decontamination tower and a cleaning device thereof, so as to solve the technical problem in the prior art that the cleaning reaction liquid circulating in the decontamination tower cleaning equipment is not convenient to effectively pass through the packing layer of the decontamination tower, resulting in poor cleaning effect and low cleaning efficiency.

[0006] The technical problem to be solved by the present invention can be achieved through the following technical solutions:

[0007] A decontamination tower comprises a tower body and a filler tank body, wherein a plurality of filler tank bodies are provided and longitudinally distributed in the tower body; and further comprises an elastic telescopic support structure;

[0008] The elastic telescopic support mechanism is provided in multiple groups, and both sides of the bottom of each filling tank body are connected with the inner wall of the tower body through the elastic telescopic support mechanism.

[0009] Preferably, the elastic telescopic support mechanism includes a support guide sleeve, a support guide rod and a support spring. The support guide sleeve is fixedly connected to the inner wall of the tower body, the support guide rod is fixedly connected to the bottom of the filling trough body, and the support guide rod slides through the support guide sleeve. The bottom of the filling trough body and the support guide sleeve are connected by a support spring.

[0010] A cleaning device for a debris removal tower, comprising:

[0011] A cleaning liquid circulation and delivery mechanism, comprising a piston liquid delivery mechanism and a drive motor, wherein the drive motor is used to drive the piston liquid delivery mechanism to operate and deliver the cleaning liquid into the tower body;

[0012] The lifting guide mechanism includes a central lifting tube, each of the filling slots is fixedly connected to the central lifting tube, and a cam pushing mechanism is provided between the drive motor and the central lifting tube. The drive motor continuously pushes the central lifting tube through the cam pushing mechanism to drive the filling slot to descend.

[0013] Preferably, the cleaning liquid circulation and delivery mechanism further includes a liquid storage tank, which is arranged on one side of the bottom of the tower body, and a return liquid pipe is connected between the liquid storage tank and the bottom of the tower body, and the piston liquid delivery mechanism is arranged inside the liquid storage tank.

[0014] Preferably, the piston liquid delivery mechanism includes a piston cylinder and a one-way infusion tube, the piston cylinder is fixedly arranged inside the liquid storage tank, and the bottom of the piston cylinder is provided with a one-way suction tube for sucking the cleaning liquid inside the liquid storage tank, one end of the one-way infusion tube is connected to the bottom of the piston cylinder, and the other end extends to the top of the central lifting tube, and multiple groups of rotary liquid spraying mechanisms are provided on the central lifting tube, each group of the rotary liquid spraying mechanisms is connected to the one-way infusion tube, a piston block is provided inside the piston cylinder, and a reciprocating push-pull mechanism for driving the piston block to reciprocate is provided at the main shaft end of the drive motor.

[0015] Preferably, the reciprocating push-pull mechanism includes a fixed rod and a linkage rod, the drive motor is fixedly arranged on the top of the liquid storage tank, one end of the fixed rod is fixedly connected to the main shaft end of the drive motor, and the other end of the fixed rod is rotatably connected to the linkage rod, and a connecting rod is vertically fixedly connected to the piston block, and the end of the linkage rod away from the fixed rod is rotatably connected to the connecting rod.

[0016] Preferably, the cam pushing mechanism includes a rotating cam, a linkage baffle and a transmission mechanism, a protective tube is fixedly provided on one side of the top of the tower body, an upper sleeve is fixedly connected to one end of the protective tube inside the tower body, and the upper sleeve is slidably sleeved on the top of the central lifting tube, a lower sleeve is fixedly connected to the bottom of the tower body, and the lower sleeve is slidably sleeved on the bottom of the central lifting tube, the rotating cam is rotatably connected to the inner side of one end of the protective tube close to the central lifting tube, the linkage baffle is fixedly connected to the top of the central lifting tube, and the linkage baffle is cooperated to be located below the rotating cam, and the rotating cam is cooperated with the main shaft end of the driving motor through a transmission mechanism.

[0017] Preferably, the transmission mechanism includes a first synchronous belt, a second synchronous belt and an intermediate shaft; the intermediate shaft is rotatably connected to the end of the protective tube outside the tower body, the intermediate shaft and the main shaft end of the drive motor are both coaxially fixedly connected with a first synchronous wheel, the first synchronous belt is cooperatively connected between the two first synchronous wheels, the intermediate shaft and the rotating cam are both coaxially fixedly connected with a second synchronous wheel, and the second synchronous belt is cooperatively connected between the two second synchronous wheels.

[0018] Preferably, the rotary liquid spraying mechanism includes an annular rotating box and an auxiliary through-tube, wherein the annular rotating box is rotatably sleeved on the outer wall of the central lifting tube. An elastic connector is connected between the annular rotating box and the central lifting tube, and a plurality of spray holes are circumferentially equidistantly formed on the outer ring sidewall of the annular rotating box. The auxiliary through-tube is vertically fixedly connected to the inner wall of one side of the central lifting tube, and a corrugated telescopic tube is connected between the top of the auxiliary through-tube and the one-way infusion tube. A connecting hose is connected between the annular rotating box and the auxiliary through-tube, and a limiting steel wire is connected between one side of the annular rotating box and the inner wall of the tower body. A steering guide sleeve is fixedly connected to the inner wall of the tower body near the limiting steel wire, and the limiting steel wire passes through the steering guide sleeve.

[0019] Preferably, a support rod is passed through the interior of the central lifting tube, and the support rod is fixedly connected to the lower casing, a plurality of extrusion blocks are evenly distributed on the support rod, and a plurality of groups of vibration plate assemblies are distributed on the central lifting tube, each group of the vibration plate assemblies includes a plurality of elastic metal sheets, the elastic metal sheets are evenly distributed around the central lifting tube, and one end of the elastic metal sheet is in the filling tank body, and the other end passes through the interior of the central lifting tube, and the end of the elastic metal sheet inside the central lifting tube cooperates with the extrusion block.

[0020] Beneficial effects of the present invention:

[0021] 1. The present invention cooperates with a driving motor and a piston liquid delivery mechanism to continuously circulate and transport the cleaning liquid to the packing layer in the tower body for reaction cleaning. During the operation of the driving motor, it also cooperates with the first synchronous wheel, the first synchronous belt, the intermediate shaft, the second synchronous wheel and the second synchronous belt to rotate the provided rotating cam, and the rotating cam continuously pushes the linkage baffle on the central lifting pipe. Since the packing tank body is supported in the tower body by an elastic telescopic support member, it can generate an up and down oscillating motion, thereby prompting the sprayed cleaning liquid to penetrate into the deep layer of the packing layer and the deep layer of the scale for reaction treatment. The inertial force generated by the oscillation destroys the adhesion interface between the scale layer and the packing, making it easy to throw out the scale or other debris from the bottom of the packing layer, thereby improving the cleaning efficiency.

[0022] 2. In the process of driving the filler trough body to move up and down, the central lifting tube of the present invention also drives the annular rotating box to descend synchronously. Since a limiting steel wire is connected between the annular rotating box and the inner wall of the tower body, and the limiting steel wire is turned by the steering guide sleeve, the annular rotating box can be pulled in the opposite direction by the limiting steel wire during its descent and deflected relative to the central lifting tube. When the central lifting tube is raised, the annular rotating box rotates by relying on the rebound force of the elastic connecting piece, so that it can rotate back and forth, thereby expanding the coverage range of the cleaning liquid spray.

[0023] 3. In the present invention, during the lifting process of the central lifting tube, the elastic metal sheets distributed on the central lifting tube move accordingly and are squeezed by the provided squeezing blocks. The elastic metal sheets are deformed during the squeezing process, which facilitates the generation of vibrations. Since the elastic metal sheets are distributed in the packing layer, the vibrations are easily transmitted to the packing layer, making it convenient to diffuse the cleaning liquid by relying on the vibration effect, and at the same time facilitate the separation and fall-off of scale in the packing layer, thereby improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic structural diagram of the connection between the filler tank body and the central lifting pipe in the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the protective tube and the central lifting tube in the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of the driving motor and the central lifting tube in the present invention;

[0028] Figure 5 yes Figure 4 Schematic diagram of the enlarged structure at A in the middle;

[0029] Figure 6 yes Figure 4Schematic diagram of the enlarged structure at B in the middle;

[0030] Figure 7 This is a schematic diagram of the structure of the piston cylinder and the liquid storage tank in the present invention;

[0031] Figure 8 It is a schematic structural diagram of the connection between the driving motor and the connecting rod in the present invention;

[0032] Figure 9 This is a schematic cross-sectional view of the connection between the protective tube, the central lifting tube, and the filler tank in the present invention;

[0033] Figure 10 yes Figure 9 Schematic diagram of the enlarged structure at C in the middle;

[0034] Figure 11 yes Figure 9 Schematic diagram of the enlarged structure at D in the middle;

[0035] Figure 12 This is a schematic structural diagram of the connection between the central lifting tube and the annular rotating box in the present invention;

[0036] Figure 13 yes Figure 12 Schematic diagram of the enlarged structure at E in the middle.

[0037] Description of reference numerals:

[0038] 1. Tower body; 2. Liquid storage tank; 3. Filling tank; 4. Central lifting tube; 5. Annular rotating box; 6. Lower casing; 7. Steering guide sleeve; 8. Limiting wire; 9. Support guide sleeve; 10. Support guide rod; 11. Support spring; 12. Liquid return pipe; 13. Protective pipe; 14. Upper casing; 15. Drive motor; 16. First synchronous wheel; 17. First synchronous belt; 18. Intermediate shaft; 19. Second synchronous wheel; 20. Second synchronous belt; 21. Rotating cam; 22. Linkage baffle; 23. One-way infusion tube; 24. Fixed rod; 25. Linkage rod; 26. Piston cylinder; 27. One-way suction tube; 28. Connecting rod; 29. Elastic metal sheet; 30. Support rod; 31. Auxiliary through pipe; 32. Spray hole; 33. Connecting hose; 34. Corrugated telescopic tube; 35. Extrusion block. DETAILED DESCRIPTION

[0039] The specific embodiments of the present invention are described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0040] like Figure 1As shown, a decontamination tower is a packed distillation tower that can be used for decontamination in a carbonate production process. The decontamination tower comprises a tower body 1 and a packing tank body 3. A plurality of packing tank bodies 3 are provided and longitudinally distributed in the tower body 1. The inner side of the packing tank body 3 is used to fill crushed materials, and filter holes are distributed on the side walls of the packing tank body 3 itself to facilitate the passage of liquid and gas and block the passage of the packing; a liquid inlet pipe is provided on one side of the top of the tower body 1 for feeding the liquid to be treated into the interior of the tower body 1. Pipes are provided on the top and bottom of the tower body 1. The top pipe is used to connect the condenser, the ethyl methyl carbonate degassing tower, the distillation tower, and the like. The light components of the ethyl ester light removal tower are transported to the tower body 1 and flow from top to bottom through the packing in the packing tank 3 to the bottom of the tower body 1. The bottom of the tower body 1 is equipped with an electric heating element for heating the liquid, causing the liquid to boil into steam. The steam then rises and passes through the distributed packing in the packing tank 3. The steam passes through the packing layer and contacts the downstream liquid. The light components in the steam diffuse into the liquid, and the heavy components in the liquid diffuse into the steam. Separation is achieved through the difference in component volatility, thereby realizing the relevant impurity removal function. In addition, the pipeline at the bottom of the tower body 1 is provided with a valve, which is convenient for opening and discharging the product at the corresponding stage.

[0041] The distillation tower also includes an elastic telescopic support structure, and multiple groups of elastic telescopic support mechanisms are provided. The bottom two sides of each filling tank body 3 are connected to the inner wall of the tower body 1 through the elastic telescopic support mechanism. The filling tank body 3 can oscillate longitudinally relative to the tower body 1, which is convenient for promoting the filling cleaning effect through up and down oscillation during the filling cleaning stage.

[0042] In some specific embodiments, such as Figure 3 As shown, the elastic telescopic support mechanism includes a support guide sleeve 9, a support guide rod 10 and a support spring 11. The support guide sleeve 9 is fixedly connected to the inner wall of the tower body 1 through a bracket, the support guide rod 10 is fixedly connected to the bottom of the filling tank body 3, and the support guide rod 10 slides through the support guide sleeve 9. The bottom of the filling tank body 3 and the support guide sleeve 9 are connected by a support spring 11, and the support spring 11 is sleeved on the outside of the support guide rod 10.

[0043] The filler tank body 3 can move downward relative to the support guide sleeve 9 by relying on the support guide rod 10 and compress the support spring 11.

[0044] like Figures 2 to 13As shown, a cleaning device for a decontamination tower is used to clean the decontamination tower. The cleaning device includes a cleaning liquid circulation conveying mechanism and a lifting guide mechanism. The cleaning liquid circulation conveying mechanism is arranged on one side of the tower body 1. The cleaning liquid circulation conveying mechanism is used to circulate and convey the cleaning liquid into the tower body 1. The cleaning liquid can be water with an alkali or acid. When the cleaning liquid is conveyed through the packing, it is convenient to react and treat the scale accumulated on the packing due to long-term use. The cleaning liquid circulation conveying mechanism includes a piston liquid feeding mechanism and a drive motor 15. The drive motor 15 is used to drive the piston liquid feeding mechanism to operate and convey the cleaning liquid into the tower body 1.

[0045] The lifting guide mechanism includes a central lifting tube 4, each filling tank body 3 is fixedly connected to the central lifting tube 4, and the central lifting tube 4 passes through the center position of the filling tank body 3. A cam pushing mechanism is provided between the driving motor 15 and the central lifting tube 4. The driving motor 15 continuously pushes the central lifting tube 4 through the cam pushing mechanism to drive the filling tank body 3 down. Under the elastic support of the elastic telescopic support member, the conveniently distributed filling tank bodies 3 are continuously reciprocating up and down, thereby facilitating the cleaning liquid to pass through the entire packing layer and contact the possible structures at various positions of the packing layer, facilitating the reaction and treatment, and also conducive to allowing the scale to be thrown out of the filling tank body 3 together with the cleaning liquid.

[0046] In some specific embodiments, the cleaning liquid circulation and delivery mechanism also includes a liquid storage tank 2, which is arranged on one side of the bottom of the tower body 1 and is filled with cleaning liquid. A return liquid pipe 12 is connected between the liquid storage tank 2 and the bottom of the tower body 1. The return liquid pipe 12 is used to guide the liquid at the bottom of the tower body 1 into the liquid storage tank 2. A control valve is provided on the return liquid pipe 12 for easy switching; the piston liquid delivery mechanism is arranged inside the liquid storage tank 2.

[0047] In some specific embodiments, such as Figures 7 to 9As shown, the piston liquid feeding mechanism includes a piston cylinder 26 and a one-way liquid infusion tube 23. The piston cylinder 26 is fixedly arranged inside the liquid storage tank 2. A one-way suction tube 27 for sucking the cleaning liquid inside the liquid storage tank 2 is provided at the bottom of the piston cylinder 26. The one-way suction tube 27 is composed of a one-way valve and a straw, which facilitates the liquid inside the liquid storage tank 2 to enter the piston cylinder 26 through the one-way suction tube 27 and cannot flow reversely. The one-way valve is located close to the piston cylinder 26. At the same time, in order to avoid possible impurities blocking the one-way suction tube 27, a raised spherical mesh body can be installed at the port of the one-way suction tube 27 to filter impurities. One end of the one-way liquid infusion tube 23 is connected to the one-way suction tube 27. It is connected to the bottom of the piston cylinder 26, and the other end extends to the top of the central lifting pipe 4. The one-way infusion pipe 23 is also composed of a one-way valve and a pipeline, which can only discharge the liquid in the piston cylinder 26 and cannot flow reversely, and the one-way valve is located close to the piston cylinder 26; a plurality of groups of rotary spray mechanisms are provided on the central lifting pipe 4, each group of rotary spray mechanisms is connected to the one-way infusion pipe 23, and the rotary spray mechanisms are distributed corresponding to the filling tank body 3, and are respectively located at the upper position of the corresponding filling tank body 3. A piston block is provided inside the piston cylinder 26, and a reciprocating push-pull mechanism for driving the piston block to reciprocate is provided at the main shaft end of the drive motor 15.

[0048] Among them, the reciprocating push-pull mechanism includes a fixed rod 24 and a linkage rod 25. The drive motor 15 is fixedly arranged on the top of the liquid storage tank 2 through a mounting seat. The main shaft end of the drive motor 15 is horizontally forward. One end of the fixed rod 24 is fixedly connected to the main shaft end of the drive motor 15, and the fixed rod 24 is vertically distributed with the main shaft end of the drive motor 15. The other end of the fixed rod 24 is rotatably connected to the linkage rod 25 through a rotating shaft. A connecting rod 28 is vertically fixedly connected to the piston block, and the end of the linkage rod 25 away from the fixed rod 24 is rotatably connected to the connecting rod 28 through a rotating shaft. The fixed rod 24, the linkage rod 25, the connecting rod 28 and the piston block slidingly arranged in the piston cylinder 26 constitute a crank reciprocating motion mechanism.

[0049] When the drive motor 15 is running, it drives the fixed rod 24 to rotate, and the fixed rod 24 pushes and pulls the connecting rod 28 and the piston block back and forth along the piston cylinder 26 through the linkage rod 25. In this way, the piston cylinder 26 can continuously suck the cleaning liquid from the liquid storage tank 2 through the one-way suction pipe 27, and then transport it to the rotary spray mechanism distributed on the central lifting pipe 4 through the one-way liquid delivery pipe 23, and then rely on the rotary spray mechanism to spray it onto the packing layer.

[0050] In some embodiments, combined Figures 4 to 6As shown, the cam pushing mechanism includes a rotating cam 21, a linkage baffle 22 and a transmission mechanism. A protective tube 13 is fixedly provided on one side of the top of the tower body 1. One end of the protective tube 13 inside the tower body 1 is fixedly connected to an upper sleeve 14. The upper sleeve 14 is vertically distributed with the protective tube 13, and the upper sleeve 14 is slidably sleeved on the top of the central lifting tube 4. The bottom of the tower body 1 is fixedly connected to a lower sleeve 6 through a bracket, and the lower sleeve 6 is slidably sleeved on the bottom of the central lifting tube 4, and the bottom of the lower sleeve 6 is a closed end; the rotating cam 21 is rotatably connected to the inner side of one end of the protective tube 13 close to the central lifting tube 4 through a rotating shaft, and the linkage baffle 22 is fixedly connected to the inner side of the protective tube 13 close to the central lifting tube 4 through a bracket. It is connected to the top of the central lifting tube 4, and the linkage baffle 22 is located below the rotating cam 21. The rotating cam 21 is connected to the main shaft end of the drive motor 15 through a transmission mechanism. The transmission mechanism is distributed along the protective tube 13. The protective tube 13, the upper sleeve 14, the central lifting tube 4 and the lower sleeve 6 are connected in sequence. It should be noted here that the protective tube 13, the upper sleeve 14 and the lower sleeve 6 are used to protect the effective transmission of the cam pushing mechanism to avoid damage to the transmission components caused by contact with some corrosive liquids or gases inside the tower body 1; in addition, the one-way infusion tube 23 can also be distributed along the inner wall of the protective tube 13 and extend to the top position of the central lifting tube 4.

[0051] In some specific embodiments, the transmission mechanism includes a first synchronous belt 17, a second synchronous belt 20 and an intermediate shaft 18; the intermediate shaft 18 is rotatably connected to one end of the protective tube 13 outside the tower body 1, and the intermediate shaft 18 and the main shaft end of the drive motor 15 are both coaxially fixedly connected with the first synchronous wheel 16, the first synchronous belt 17 is cooperatively connected between the two first synchronous wheels 16, the intermediate shaft 18 and the rotating cam 21 are both coaxially fixedly connected with the second synchronous wheel 19, and the second synchronous belt 20 is cooperatively connected between the two second synchronous wheels 19.

[0052] During the operation of the driving motor 15, the first synchronous wheel 16 and the first synchronous belt 17 cooperate to rotate the intermediate shaft 18, and the intermediate shaft 18 cooperates with the second synchronous wheel 19 and the second synchronous belt 20 to rotate the rotating cam 21. It should be noted that in order to facilitate the central lifting tube 4 to drive the filling tank body 3 to undergo longitudinal oscillation under the action of the rebound force of the support spring 11, as shown in FIG. Figure 6As shown, one side of the linkage baffle 22 is aligned with the longitudinal position of the central axis of the rotating cam 21. When the rotating cam 21 rotates clockwise due to the transmission action, the raised end of the rotating cam 21 first squeezes the linkage baffle 22 to generate a downward pushing force, and the linkage baffle 22 drives the central lifting tube 4 to drop a certain distance, and the central lifting tube 4 drives the filling tank body 3 to drop synchronously. When the raised end of the rotating cam 21 rotates to the lowest position, it just contacts the edge of the linkage baffle 22. If it continues to rotate, it will separate, and the central lifting tube 4 and the filling tank body 3 will instantly bounce up under the rebound force of the support spring 11. This is repeated to generate an oscillating effect, which is beneficial for the cleaning liquid to penetrate into the deep position of the filling layer, and at the same time facilitates the cleaning liquid to be discharged downward with the cleaning material, thereby improving the cleaning efficiency.

[0053] In some embodiments, combined Figure 9 and Figure 10 As shown, the rotary liquid spraying mechanism includes an annular rotating box 5 and an auxiliary through-tube 31. The annular rotating box 5 is rotatably sleeved on the outer wall of the central lifting tube 4. It should be noted here that the annular rotating box 5 can only rotate around the central lifting tube 4 and cannot slide along the central lifting tube 4, because the corresponding positions of the central lifting tube 4 are distributed with limit baffles, which are limited on the upper and lower sides of the annular rotating box 5. An elastic connector is connected between the annular rotating box 5 and the central lifting tube 4. The elastic connector can be a coil spring or an elastic rubber sheet. When the annular rotating box 5 rotates relative to the central lifting tube 4, the elastic connector can generate a rebound force, which is convenient for the annular rotating box 5 to rotate and reset when the rotation driving force disappears; a plurality of spray holes 32 are circumferentially equidistantly opened on the outer ring side wall of the annular rotating box 5, and the auxiliary through-tube 31 is vertically fixedly connected to the inner wall of one side of the central lifting tube 4, and the auxiliary through-tube 31 is fixedly connected to the inner wall of one side of the central lifting tube 4. The bottom end is a closed end, and a corrugated telescopic tube 34 is connected between the top and the one-way infusion tube 23. The corrugated telescopic tube 34 is made of acid and alkali resistant material, and prevents the connection between the one-way infusion tube 23 and the auxiliary through-tube 31 from hindering the lifting of the central lifting tube 4; a connecting hose 33 is connected between the annular rotating box 5 and the auxiliary through-tube 31, and the connecting hose 33 is also made of acid and alkali resistant material; a limiting steel wire 8 is connected between one side of the annular rotating box 5 and the inner wall of the tower body 1, and a steering guide sleeve 7 is fixedly connected to the position of the inner wall of the tower body 1 near the limiting steel wire 8 through a bracket, and the limiting steel wire 8 passes through the steering guide sleeve 7, and the position of the steering guide sleeve 7 is staggered with the position of the limiting steel wire 8 connected to the annular rotating box 5. For details, please refer to Figure 12 and Figure 13As shown, when the central lifting tube 4 and the filling tank body 3 are in the initial position, the limiting wire 8 is in a taut state. When the central lifting tube 4 is descending with the filling tank body 3, the central lifting tube 4 synchronously drives the distributed annular rotary box 5 to descend. During the descent of the annular rotary box 5, due to the reverse pulling action of the limiting wire 8 and the cooperation of the steering guide sleeve 7, the annular rotary box 5 is subjected to the pulling force in the rotation direction and deflected at a certain angle. During this process, the elastic connector generates a rebound force. When the central lifting tube 4 is raised, the annular rotary box 5 can be rotated and reset by relying on the elastic connector, so that back and forth deflection can be achieved. At the same time, the one-way infusion tube 23 transports the cleaning liquid into the auxiliary through tube 31, and the cleaning liquid is transported to the annular rotary box 5 through the connecting hose 33, so that it is convenient to spray through the spray hole 32. Moreover, since the annular rotary box 5 deflects back and forth, it is convenient to expand the spraying range of the cleaning liquid.

[0054] In some specific embodiments, in order to further clean out the fouling in the packing layer, Figure 9 and Figure 11 As shown, a support rod 30 is passed through the interior of the central lifting tube 4, and the support rod 30 is fixedly connected to the lower sleeve 6. A plurality of extrusion blocks 35 are evenly distributed on the support rod 30, and a plurality of groups of vibration plate assemblies are distributed on the central lifting tube 4. The vibration plate assemblies are correspondingly located inside the filling tank body 3. Each group of vibration plate assemblies includes a plurality of elastic metal sheets 29. The elastic metal sheets 29 are evenly distributed circumferentially around the central lifting tube 4, and one end of the elastic metal sheet 29 is located in the filling tank body 3, and the other end passes through the interior of the central lifting tube 4. The end of the elastic metal sheet 29 located inside the central lifting tube 4 cooperates with the extrusion block 35. It should also be noted that an elastic rubber sleeve can be installed at the position where the elastic metal sheet 29 passes through the central lifting tube 4. The elastic metal sheet 29 can be fixedly connected to the central lifting tube 4 through the elastic rubber sleeve to facilitate vibration.

[0055] In order to facilitate the extrusion of the elastic metal sheet 29 , the extrusion block 35 is elliptical.

[0056] Since the elastic metal sheet 29 is buried between the packings, and during the lifting and lowering movement of the central lifting tube 4, the support rod 30 connected to the extrusion block 35 is fixed relative to the lower casing 6, then during the lifting and lowering process of the central lifting tube 4, the extrusion block 35 squeezes the elastic metal sheet 29, causing the end of the elastic metal sheet 29 inside the central lifting tube 4 to deform. Whenever the extrusion block 35 separates from the elastic metal sheet 29, the deformed end of the elastic metal sheet 29 rebounds, thereby generating vibration. The vibration is transmitted to the packing layer along the elastic metal sheet 29, so that the cleaning liquid can diffuse and penetrate inside the packing layer by relying on the vibration, thereby facilitating the action on scale deposits at various positions.

[0057] To facilitate understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution is briefly described in conjunction with specific application scenarios:

[0058] In the carbonate production process, the light components from the ethyl methyl carbonate light removal tower and the diethyl carbonate light removal tower used in the carbonate production process are transported to the tower body 1 of the impurity removal tower, and flow from top to bottom through the fillers in the filler tank body 3 to the bottom of the tower body 1. The bottom of the tower body 1 is equipped with an electric heating element for heating the liquid, so that the liquid boils into steam, and then the steam rises and passes through the fillers in the distributed filler tank body 3. The steam passes through the filler layer and contacts the downstream liquid. The light components in the steam diffuse into the liquid, and the heavy components in the liquid diffuse into the steam. The components are separated by the difference in volatility, thereby achieving the relevant impurity removal function.

[0059] When it is necessary to clean the packing layer in the impurity removal tower, the material in the tower body 1 is emptied through the pipeline at the bottom of the tower body 1, and then the valve of the bottom pipeline is closed, and then the valve on the return pipe 12 is opened, and then the drive motor 15 is started. The drive motor 15 drives the fixed rod 24 to rotate, and the fixed rod 24 pushes and pulls the connecting rod 28 and the piston block reciprocatingly along the piston cylinder 26 through the linkage rod 25, so that the piston cylinder 26 can continuously suck the cleaning liquid from the liquid storage tank 2 through the one-way suction pipe 27, and then transport it to the auxiliary channel 31 distributed in the central lifting pipe 4 through the one-way liquid delivery pipe 23, and then the cleaning liquid is transported to the annular rotary box 5 through the connecting hose 33, so that it is convenient to spray to the upper surface of the packing layer through the spray hole 32, and the cleaning liquid gradually flows downward to penetrate the entire packing layer, react and treat the scale in the packing layer, and then the cleaning liquid falls to the bottom of the tower body 1 and enters the liquid storage tank 2 again through the return pipe 12, realizing liquid circulation treatment.

[0060] During the operation of the drive motor 15, the first synchronous wheel 16 and the first synchronous belt 17 cooperate to rotate the intermediate shaft 18, and the intermediate shaft 18 cooperates with the second synchronous wheel 19 and the second synchronous belt 20 to rotate the rotating cam 21;

[0061] During the rotation of the rotating cam 21, the raised end of the rotating cam 21 first squeezes and acts on the linkage baffle 22, generating a downward pushing force. The linkage baffle 22 then drives the central lifting tube 4 to drop a certain distance, and the central lifting tube 4 drives the filling tank body 3 to drop synchronously. When the raised end of the rotating cam 21 rotates to the lowest position, it just contacts the edge of the linkage baffle 22. If it continues to rotate, it will separate, and the central lifting tube 4 and the filling tank body 3 will instantly bounce up under the rebound force of the support spring 11. This is repeated to generate an oscillating effect, which is beneficial for the cleaning liquid to pass through the packing layer, and at the same time facilitates the cleaning liquid to be discharged downward with the cleaning material, thereby improving the cleaning efficiency.

[0062] And in the process of the central lifting tube 4 carrying the filling trough body 3 descending, the central lifting tube 4 synchronously drives the distributed annular rotary box 5 to descend. In the process of the annular rotary box 5 descending, due to the reverse pulling effect of the limiting wire 8 and the cooperation of the steering guide sleeve 7, the annular rotary box 5 is subjected to the tension in the rotation direction and deflected at a certain angle. During this process, the elastic connector generates a rebound force. When the central lifting tube 4 rises, the annular rotary box 5 can rely on the elastic connector to rotate and reset, so that back and forth deflection can be achieved. At the same time, the one-way infusion tube 23 transports cleaning liquid to the auxiliary through tube 31, and the cleaning liquid is transported to the annular rotary box 5 through the connecting hose 33, so that it is convenient to spray through the spray hole 32. And since the annular rotary box 5 deflects back and forth, it is convenient to expand the spray range of the cleaning liquid.

[0063] In addition, during the lifting and lowering movement of the central lifting tube 4, the support rod 30 connected to the extrusion block 35 is fixed relative to the lower casing 6. Therefore, during the lifting and lowering movement of the central lifting tube 4, the elastic metal sheet 29 and the extrusion block 35 that move synchronously with the central lifting tube 4 are squeezed, causing the end of the elastic metal sheet 29 inside the central lifting tube 4 to deform. Whenever the extrusion block 35 separates from the elastic metal sheet 29, the deformed end of the elastic metal sheet 29 rebounds, thereby generating vibration. The vibration is transmitted to the packing layer along the elastic metal sheet 29, so that the packing layer can be acted upon by vibration, prompting the cleaning liquid to diffuse and penetrate inside the packing layer, making it convenient to act on the scale at various positions and improving the cleaning effect.

[0064] The above disclosures are only a few specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. A decontamination tower, comprising a tower body (1) and a packing tank body (3), wherein a plurality of packing tank bodies (3) are provided and longitudinally distributed in the tower body (1); characterized in that: Also included is an elastic telescopic support structure; The elastic telescopic support mechanism is provided in multiple groups, and both sides of the bottom of each of the filling tank bodies (3) are cooperatively connected to the inner wall of the tower body (1) through the elastic telescopic support mechanism.

2. A decontamination tower according to claim 1, characterized in that: The elastic telescopic support mechanism comprises a support guide sleeve (9), a support guide rod (10) and a support spring (11); the support guide sleeve (9) is fixedly connected to the inner wall of the tower body (1); the support guide rod (10) is fixedly connected to the bottom of the filling tank body (3); the support guide rod (10) slides through the support guide sleeve (9); and the bottom of the filling tank body (3) and the support guide sleeve (9) are connected via the support spring (11).

3. A cleaning device for a cleaning tower, used for cleaning the cleaning tower according to claim 1, characterized in that: include: A cleaning liquid circulation and delivery mechanism, the cleaning liquid circulation and delivery mechanism comprising a piston liquid delivery mechanism and a drive motor (15), the drive motor (15) being used to drive the piston liquid delivery mechanism to operate and deliver the cleaning liquid into the tower body (1); A lifting guide mechanism includes a central lifting tube (4), each of the filling tank bodies (3) is fixedly connected to the central lifting tube (4), a cam pushing mechanism is provided between the driving motor (15) and the central lifting tube (4), and the driving motor (15) continuously pushes the central lifting tube (4) through the cam pushing mechanism to drive the filling tank body (3) to descend.

4. The cleaning device for a cleaning tower according to claim 3, characterized in that: The cleaning liquid circulation and delivery mechanism further comprises a liquid storage tank (2), the liquid storage tank (2) being arranged on one side of the bottom of the tower body (1), and a liquid return pipe (12) being connected between the liquid storage tank (2) and the bottom of the tower body (1), and the piston liquid delivery mechanism being arranged inside the liquid storage tank (2).

5. The cleaning device for a cleaning tower according to claim 4, characterized in that: The piston liquid feeding mechanism comprises a piston cylinder (26) and a one-way liquid infusion tube (23). The piston cylinder (26) is fixedly arranged inside the liquid storage tank (2). The bottom of the piston cylinder (26) is provided with a one-way suction tube (27) for sucking the cleaning liquid inside the liquid storage tank (2). One end of the one-way liquid infusion tube (23) is connected to the bottom of the piston cylinder (26), and the other end extends to the top of the central lifting tube (4). The central lifting tube (4) is provided with multiple groups of rotary liquid spraying mechanisms, each group of the rotary liquid spraying mechanisms is connected to the one-way liquid infusion tube (23). A piston block is provided inside the piston cylinder (26). The main shaft end of the drive motor (15) is provided with a reciprocating push-pull mechanism for driving the piston block to move back and forth.

6. The cleaning device for a cleaning tower according to claim 5, characterized in that: The reciprocating push-pull mechanism comprises a fixed rod (24) and a linkage rod (25); the drive motor (15) is fixedly arranged on the top of the liquid storage tank (2); one end of the fixed rod (24) is fixedly connected to the main shaft end of the drive motor (15); the other end of the fixed rod (24) is rotatably connected to the linkage rod (25); a connecting rod (28) is vertically fixedly connected to the piston block; and the end of the linkage rod (25) away from the fixed rod (24) is rotatably connected to the connecting rod (28).

7. The cleaning device for a cleaning tower according to claim 3, characterized in that: The cam pushing mechanism comprises a rotating cam (21), a linkage baffle (22) and a transmission mechanism. A protective tube (13) is fixedly provided on one side of the top of the tower body (1) in a transverse direction. An upper sleeve (14) is fixedly connected to one end of the protective tube (13) located inside the tower body (1), and the upper sleeve (14) is slidably sleeved on the top of the central lifting tube (4). A lower sleeve (6) is fixedly connected to the bottom of the tower body (1), and the lower sleeve (6) is slidably sleeved on the bottom of the central lifting tube (4). The rotating cam (21) is rotatably connected to the inner side of one end of the protective tube (13) close to the central lifting tube (4). The linkage baffle (22) is fixedly connected to the top of the central lifting tube (4), and the linkage baffle (22) is cooperatively located below the rotating cam (21). The rotating cam (21) is cooperatively connected to the main shaft end of the drive motor (15) through the transmission mechanism.

8. The cleaning device for a cleaning tower according to claim 7, characterized in that: The transmission mechanism comprises a first synchronous belt (17), a second synchronous belt (20) and an intermediate shaft (18); the intermediate shaft (18) is rotatably connected to one end of the protective tube (13) outside the tower body (1); the intermediate shaft (18) and the main shaft end of the driving motor (15) are both coaxially fixedly connected with a first synchronous wheel (16); the first synchronous belt (17) is cooperatively connected between the two first synchronous wheels (16); the intermediate shaft (18) and the rotating cam (21) are both coaxially fixedly connected with a second synchronous wheel (19), and the second synchronous belt (20) is cooperatively connected between the two second synchronous wheels (19).

9. The cleaning device for a cleaning tower according to claim 5, characterized in that: The rotary liquid spraying mechanism comprises an annular rotating box (5) and an auxiliary through-tube (31). The annular rotating box (5) is rotatably sleeved on the outer wall of the central lifting tube (4). An elastic connecting piece is connected between the annular rotating box (5) and the central lifting tube (4). A plurality of spray holes (32) are equidistantly provided on the outer ring side wall of the annular rotating box (5). The auxiliary through-tube (31) is vertically fixedly connected to the inner wall of one side of the central lifting tube (4). A corrugated telescopic tube (34) is connected between the top of the auxiliary through-tube (31) and the one-way liquid infusion tube (23). A connecting hose (33) is connected between the annular rotating box (5) and the auxiliary through-tube (31). A limiting steel wire (8) is connected between one side of the annular rotating box (5) and the inner wall of the tower body (1). A steering guide sleeve (7) is fixedly connected to the inner wall of the tower body (1) near the limiting steel wire (8), and the limiting steel wire (8) passes through the steering guide sleeve (7).

10. The cleaning device for a cleaning tower according to claim 7, characterized in that: A support rod (30) is provided inside the central lifting tube (4), and the support rod (30) is fixedly connected to the lower casing (6). A plurality of extrusion blocks (35) are evenly distributed on the support rod (30). A plurality of groups of vibration plate assemblies are distributed on the central lifting tube (4). Each group of the vibration plate assemblies includes a plurality of elastic metal sheets (29). The elastic metal sheets (29) are evenly distributed around the central lifting tube (4). One end of the elastic metal sheet (29) is located in the filler tank (3), and the other end is passed into the interior of the central lifting tube (4). The end of the elastic metal sheet (29) located inside the central lifting tube (4) cooperates with the extrusion block (35).

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