CN116173715B - Alkaline washing tower for treating tail gas from polyethylene production and use method thereof - Google Patents
Alkaline washing tower for treating tail gas from polyethylene production and use method thereof Download PDFInfo
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- CN116173715B CN116173715B CN202310450087.1A CN202310450087A CN116173715B CN 116173715 B CN116173715 B CN 116173715B CN 202310450087 A CN202310450087 A CN 202310450087A CN 116173715 B CN116173715 B CN 116173715B
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- 239000004698 Polyethylene Substances 0.000 title claims abstract description 61
- -1 polyethylene Polymers 0.000 title claims abstract description 61
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 61
- 238000005406 washing Methods 0.000 title claims abstract description 61
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 142
- 239000007921 spray Substances 0.000 claims abstract description 19
- 239000012535 impurity Substances 0.000 claims description 76
- 239000007788 liquid Substances 0.000 claims description 65
- 238000001179 sorption measurement Methods 0.000 claims description 40
- 238000007790 scraping Methods 0.000 claims description 39
- 238000007789 sealing Methods 0.000 claims description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 23
- 238000007667 floating Methods 0.000 claims description 19
- 238000012856 packing Methods 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 12
- 238000010521 absorption reaction Methods 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 3
- 241001330002 Bambuseae Species 0.000 claims description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 3
- 239000011425 bamboo Substances 0.000 claims description 3
- 239000003595 mist Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims description 2
- 239000003518 caustics Substances 0.000 claims 3
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 238000000746 purification Methods 0.000 abstract description 8
- 239000007789 gas Substances 0.000 description 96
- 238000003825 pressing Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 239000002585 base Substances 0.000 description 2
- 210000005056 cell body Anatomy 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000002156 adsorbate Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/075—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements located in a closed housing and comprising scrapers or agitators on the cake side of the filtering elements, e.g. Nutsche- or Rosenmund-type filters for performing multiple step operations such as chemical reactions, filtering and cake treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
- B01D29/6476—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a rotary movement with respect to the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/79—Injecting reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/96—Regeneration, reactivation or recycling of reactants
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention discloses an alkaline washing tower for treating tail gas of polyethylene production and a use method thereof, the alkaline washing tower comprises a tower body, an air inlet pipe is arranged on the outer wall of the tower body, a circulating water tank is arranged at the bottom of the tower body, three groups of air cylinders are fixedly arranged at the top end of the tower body, a purifier is fixedly connected to the top end of each air cylinder, the purifier comprises a connecting pipe, an exhaust groove, a mounting frame and a cylinder, a pipeline is arranged at the top of the exhaust groove, and the mounting frame is fixedly arranged in the purifier. According to the invention, the purification efficiency of the alkaline washing tower for treating the tail gas of polyethylene production can be improved by installing the purifier, after the connecting pipe is connected with the exhaust cylinder, the gas discharged by the exhaust cylinder flows into the exhaust groove, the exhaust groove enables air to flow into the filter cylinder through the spray head by virtue of the pipeline, the filter cylinder further purifies and filters the entering gas, and the filtered gas flows to the outside by virtue of the exhaust pipe, so that the aim of improving the purification efficiency is fulfilled.
Description
Technical Field
The invention relates to the technical field of alkaline washing towers, in particular to an alkaline washing tower for treating tail gas generated in polyethylene production and a use method thereof.
Background
Polyethylene is thermoplastic resin prepared by polymerization of ethylene, and is characterized by no odor, no toxicity, wax-like hand feeling, excellent low temperature resistance, and can produce tail gas when polyethylene is produced, and the tail gas contains more pollutants, so that the tail gas produced by the production of polyethylene is required to be filtered and purified by an alkaline washing tower for treating the tail gas of the production of polyethylene, and when the tail gas is purified by the alkaline washing tower for treating the tail gas of the production of polyethylene, if the tail gas does not reach the emission standard, other purifying devices are required to be used for secondary purification, so that the purifying effect of the alkaline washing tower for treating the tail gas of the production of polyethylene can be improved by the structure.
The existing alkaline washing tower for treating the tail gas of polyethylene production has the following defects:
1. patent document CN216498538U discloses an alkaline washing tower for tail gas treatment, "comprising a device bottom plate, the top fixedly connected with storage water tank of device bottom plate, the top fixedly connected with hood shell of storage water tank, the inside fixed mounting of hood shell has circulating water pump, circulating water pump's output fixedly connected with first communicating pipe, the inside fixed intercommunication of first communicating pipe has three-way valve. The first communicating pipe is connected with the power supply of the circulating water pump, the water mixed with the neutralizing agent is pumped out of the water storage tank through the second communicating pipe in the three-way valve, the pumped mixed liquor enters two spraying layers from the two third communicating pipes through the second communicating pipe respectively, finally, the waste gas is neutralized through the spray header at the bottom of the third communicating pipe, and the sprayed liquor returns to the water storage tank through the two circulating downpipes, so that the effect of spray water recycling is achieved;
2. Patent document CN204017649U discloses an alkaline washing tower, "the alkaline washing tower includes the tower body, the top of tower body is equipped with the gas vent, and the bottom is equipped with the leakage fluid dram, and the upper portion of tower body is equipped with the inlet, and the lower part is equipped with the air inlet, wherein, still be equipped with in the tower body with the guide tube of air inlet intercommunication, the guide tube stretches to the tower body axle center, the guide tube is kept away from the one end of air inlet is the arc, and its radian is pi/6 ~ pi/2, just the opening of the arc end of guide tube is down or slope downward setting. In the alkaline washing tower provided by the utility model, the gas containing acid components can be introduced into a proper position in the tower through the gas inlet and the guide pipe, is discharged out of the tower downwards or obliquely downwards and rises in the tower, so that the problem of scouring corrosion of the gas containing acid components on the side wall of the tower body is solved;
3. The patent document CN216418898U discloses a high-efficiency alkaline washing tower which comprises an alkaline washing tower, wherein one side of the bottom of the alkaline washing tower is communicated with an air inlet pipe, and the alkaline washing tower is sequentially divided into an anti-corrosion buffer layer, an equalization area, a first filler area, a first spraying area, a second filler area, a second spraying area, a gas-liquid separation layer and a smoke exhaust layer from the bottom to the top;
4. patent document CN209237684U discloses an acid and alkali scrubbing tower, "including pond, aqueduct, second water pipe, intake pipe and baffle, one side of pond is provided with circulating water pump, one side that circulating water pump kept away from the pond is provided with first water pipe, one side that circulating water pump was kept away from to first water pipe is provided with the catch basin, wherein, the top of catch basin is provided with the purifying column, the aqueduct sets up in purifying column one side that is close to the pond, and aqueduct connection and purifying column, pond and circulating water pump, the second water pipe sets up in aqueduct one side that is close to the purifying column, the one end that the aqueduct was kept away from to the second water pipe is provided with first shower nozzle, the outside of first shower nozzle is provided with solid fixed ring, gu fixed ring's bottom is provided with the second shower nozzle. This acid-base washing tower, the inclined plane of catch basin bottom, can make things convenient for the water flow direction first water pipe, make things convenient for the device to carry out hydrologic cycle through circulating water pump and first water pipe, avoided the moisture of catch basin bottom to pile up ", however, an acid-base washing tower of above-mentioned publication has mainly considered the problem of avoiding the moisture pile up of catch basin bottom, does not consider the problem of monitoring water line, consequently, the structure that the inside water line of alkaline washing tower that can handle the use to polyethylene production tail gas was monitored has necessarily been researched, and then can be when the inside adsorption liquid of alkaline washing tower that polyethylene production tail gas was handled is too little, timely warning staff adds the adsorption liquid.
Disclosure of Invention
The invention aims to provide an alkaline washing tower for treating tail gas generated in the production of polyethylene and a use method thereof, so as to solve the technical problem of improving the purification efficiency of the alkaline washing tower for treating the tail gas generated in the production of polyethylene in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: an alkaline scrubber for treating polyethylene production tail gas, comprising:
the tower body, the outer wall of the said tower body has air inlet pipes, the bottom of the said tower body has circulating water tanks;
three groups of cylinders are fixedly arranged at the top end of the tower body, a purifier is fixedly connected to the top end of each cylinder, each purifier comprises a connecting pipe, an exhaust groove, a mounting frame and a cylinder, the connecting pipes are arranged at the bottom of each purifier, the exhaust grooves are formed in the inner walls of the purifiers, one ends of the connecting pipes are in sealing connection with the input ends of the exhaust grooves, pipelines are arranged at the tops of the exhaust grooves, the mounting frame is fixedly arranged in each purifier, and the outer walls of the cylinders are connected with the outer walls of the mounting frames;
the inner wall of the cylinder is provided with a filter cylinder, the inner wall of the filter cylinder is embedded with a spray head, and the output end of the pipeline is in sealing connection with the input end of the spray head.
Preferably, the inner wall top of circulation water tank is provided with the water pump, the outer wall of tower body is provided with the delivery pipe, and the input of delivery pipe is connected with the output of water pump, the inner wall of tower body is provided with three group's sprayers, and the input of sprayer is connected with the output of delivery pipe, the inner wall of tower body is provided with the packing layer, and the packing layer is located one side of sprayer, the inner wall of tower body is provided with the defroster, and the defroster is located the top of sprayer, the top of tower body is provided with the activated carbon sheet, and the activated carbon sheet is located the top of defroster, the top fixedly connected with exhaust cylinder of tower body.
Preferably, the inner wall of clarifier is provided with the awl groove, and the bottom of awl groove passes through the plate body and seals, and the top of drum extends to the inside of awl groove, and the top of awl groove is connected with the drain pipe, and the top of drain pipe extends the inside of clarifier, and the backup pad is installed to the inner wall of clarifier.
Preferably, the top fixed mounting of backup pad has electric putter, and the sealing ring is inlayed to the bottom of drum, and electric putter's one end wears to establish in the inside that corresponds the sealing ring, and electric putter's top fixedly connected with supporting shoe, the top of supporting shoe is inlayed and is installed the storage tank, and the top fixedly connected with annular scraper blade of supporting shoe, and annular scraper blade is located one side of storage tank.
Preferably, the appearance of circulation water tank is cylindric, and the bottom fixed connection of top and tower body, the diameter of exhaust cylinder top outer lane equals with the diameter of connecting pipe inner circle, and the bracing plate size equals with the inner wall size of clarifier, and fixed the setting is at the inner wall of clarifier, and the appearance of supporting shoe is discoid, and outer lane diameter equals with the inner circle diameter of straining a section of thick bamboo.
Preferably, the inner wall of the circulating water tank is provided with a filter plate, the bottom of the filter plate is connected with a protective box, the inner wall of the protective box is provided with a servo motor, the output end of the servo motor is fixedly connected with a rotating shaft, and the outer wall of the rotating shaft is fixedly connected with a frame.
Preferably, the frame includes bar groove and square groove, bar groove is fixed to be set up at the inner wall of frame, square groove sets up the inner wall at the frame, and the bottom of square groove is connected with the top of bar groove, one side fixedly connected with bar scraper blade of bar groove, the inner wall of square groove is provided with the seal box, the inner wall of seal box is provided with micro motor, the inner wall of square groove is provided with the screw thread lead screw, and the one end and the output fixed connection of micro motor of screw thread lead screw, the sliding ring is installed around the outer wall of screw thread lead screw, the bottom fixedly connected with sliding block of sliding ring, the bottom fixedly connected with square scraper blade of sliding block, the inner wall symmetry of square groove is provided with the deflector, and the outer wall of deflector is laminated with the outer wall of sliding block mutually, the outer wall of circulation tank is provided with the cell body, the inner wall of cell body is provided with the sealing block.
Preferably, the outer wall fixedly connected with water level monitor of circulation tank, the inner wall of water level monitor is provided with the fluid connector, the outer wall of fluid connector is connected with the water pipe, and the one end of water pipe extends to the inside of circulation tank, the inner wall of fluid connector is provided with the floating block, the top fixedly connected with quarter butt of floating block, the top fixedly connected with of quarter butt is pressed the piece, the guide block is installed to the outer wall symmetry of pressing the piece, the guide arm is worn to be equipped with by the inner wall of guide block, the top of water level monitor is provided with the warning light, the inner wall of water level monitor is provided with the driver, the inner wall of driver is provided with the pressure spring, the bottom fixedly connected with square block of pressure spring, the inner wall of driver is provided with square pipe, and the one end of square block wears to establish in the inside of square pipe, the outer wall symmetry of square block is connected with the connecting block, power supply module is installed at the top of connecting block, the bottom fixedly connected with first conducting strip of connecting block, and first conducting strip and power supply module electric connection, the inner wall bottom of driver is provided with the second conducting strip, and the second conducting strip is located the below of first conducting strip, second conducting strip and lamp electric connection.
The application method of the alkaline washing tower for treating the tail gas of the polyethylene production comprises the following steps:
S1, firstly, when the alkaline washing tower is used for treating tail gas generated during polyethylene production, the generated tail gas flows upwards after entering the inside of the tower body through the air inlet pipe, so that the water pump works to extract alkaline adsorption liquid in the circulating water tank, after the adsorption liquid enters the inside of the sprayer through the water supply pipe, the sprayer enables the adsorption liquid to form water mist to be sprayed downwards and be in contact with the tail gas flowing upwards, further, particles carried in the tail gas can be purified, the contact area of liquid and air flow can be increased through the packing layer, the reaction absorption area of the packing layer is further increased, when the purified gas passes through the demister, the demister can filter water vapor carried in the gas, and then the water vapor is dried, the activated carbon plate filters air, the purified and filtered air flows to the outside through the air exhaust cylinder, when the purified gas does not reach the standard, and when the purified gas further flows to the inside of the air exhaust cylinder, the air cylinder is driven by the position of the purifier to be moved, the air discharged by the air exhaust cylinder after the connecting pipe is connected with the air exhaust cylinder, the air flow to the inside of the air exhaust cylinder through the pipeline, the air cylinder flows to enter the inside of the filter cylinder through the air cylinder, the contact area of the liquid and the air flow to the inside of the filter cylinder, the filter cylinder is further filtered, and the purified gas flows through the filter cylinder to the air cylinder, and then the purified gas is filtered to the inside the tower through the tower, and the tower is further purified;
S2, when impurities filtered by the filter cylinder are removed, the electric push rod is enabled to push the position of the supporting block to move, the position of the annular scraping plate at the top end is enabled to move when the position of the supporting block moves, the annular scraping plate is attached to the inner wall of the filter cylinder when the position of the annular scraping plate moves, adsorbed matters filtered by the inner wall of the filter cylinder can be scraped, and the scraped impurities can slide through the annular scraping plate and fall into the storage groove to be collected, so that the purpose of collecting the filtered impurities is achieved;
s3, after the adsorption liquid sprayed inside an alkaline washing tower for treating the tail gas of polyethylene production flows back to the inside of a circulating water tank, impurities carried in the adsorption liquid are filtered through a filter plate, the filtered adsorption liquid is recycled, when dirt filtered at the top of a filter plate is removed, the adsorption liquid inside the circulating water tank is discharged to the outside, the output end of a servo motor rotates to drive the position of a frame to move through a rotating shaft, the filtered impurities at the top of the filter plate are scraped through a strip scraper when the position of the frame moves, the scraped impurities can enter the inside of a strip groove to be collected, after the impurities at the top of the filter plate are collected, one end of the strip groove corresponds to a groove body, a sealing block is moved out of the groove body to prevent the groove body from being sealed, the output end of a micro motor rotates to drive a threaded screw rod to rotate, the position of a sliding ring is slid when the threaded screw rod rotates, the position of the sliding ring moves to drive the square scraper, the impurities inside the strip groove are scraped, when the impurities move to the outside, a worker can receive the impurities inside the strip groove, the impurities can be used for cleaning the polyethylene production, and the subsequent cleaning of the tail gas is avoided, and the subsequent production efficiency is improved;
S4, during the use period of the alkaline washing tower for treating the tail gas of polyethylene production, the water source in the circulating water tank can enter the interior of the communicating vessel through the water pipe, and then the floating block floats and pushes the position of the pressurizing block to move through the short rod, the top of the pressurizing block extrudes the bottom of the square block, the square block is contracted and enters the interior of the square pipe, when the water level line in the circulating water tank is too low, the liquid in the communicating vessel can be lowered through the water pipe, and then the floating block drives the position of the pressurizing block to be lowered, the pressurizing block is not applied with pressure after the position of the pressurizing block moves, the pressurizing spring resets and can push the square block to slide in the interior of the square pipe, the connecting block is driven to move when the position of the square block moves, after the connecting block moves to enable the first conducting block to be contacted with the second conducting block, the current in the power supply assembly can flow through the first conducting block and enter the interior of the warning lamp, and then the warning lamp is enabled to flash to give an alarm, and the staff is reminded that the adsorption liquid used in the alkaline washing tower for treating the tail gas is too little, and the adsorption liquid needs to be added.
Preferably, in the step S1, the method further includes the following steps:
S11, connecting the pipeline which is a hose with the joint of the spray head through threads;
in the step S2, the method further includes the following steps:
s21, the sealing ring seals the contact part of the electric push rod and the cylinder, so that gas in the cylinder can be effectively prevented from flowing to the outside through the contact part of the electric push rod;
in the step S3, the method further includes the following steps:
s31, grooves are formed in the outer wall of the sliding block, and the sliding block can be guided through cooperation between the guide plate and the grooves.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the purification efficiency of the alkaline washing tower for treating the tail gas of the polyethylene production can be improved by installing the purifier, when the purified gas does not reach the standard, the position of the connecting pipe is driven by the air cylinder to move by the purifier when the purified gas is further purified, the connecting pipe is connected with the exhaust cylinder, the gas discharged by the exhaust cylinder flows into the exhaust groove, the exhaust groove enables the air to flow into the filter cylinder through the spray head by virtue of the pipeline, the filter cylinder further purifies and filters the gas entering the filter cylinder, and the filtered gas flows into the conical groove by virtue of the cylinder and then flows to the outside by virtue of the exhaust pipe, so that the aim of improving the purification efficiency of the alkaline washing tower for treating the tail gas of the polyethylene production is fulfilled;
2. According to the invention, the supporting block and the electric push rod are arranged to scrape impurities adsorbed on the inner wall of the filter cylinder of the alkaline washing tower for treating the tail gas of polyethylene production, so that the service life is prolonged, when the impurities filtered by the filter cylinder are removed, the electric push rod is enabled to push the supporting block to move, when the supporting block moves, the annular scraping plate is attached to the inner wall of the filter cylinder, the adsorbed substances filtered by the inner wall of the filter cylinder can be scraped, and the scraped impurities can slide and fall into the storage groove through the annular scraping plate to be collected, so that the purpose of collecting the filtered impurities is achieved;
3. according to the invention, through installing the frame and the strip-shaped groove, impurities carried by the absorption liquid in the alkaline washing tower for treating the tail gas of the polyethylene production can be removed and collected, the absorption liquid sprayed in the alkaline washing tower for treating the tail gas of the polyethylene production flows back to the inside of the circulating water tank, the impurities carried in the absorption liquid are filtered through the filter plate, the filtered absorption liquid is recycled, when the dirt filtered at the top of the filter plate is removed, the absorption liquid in the circulating water tank is discharged to the outside, the output end of the servo motor rotates to drive the position of the frame to move through the rotating shaft, the impurities filtered at the top of the filter plate are scraped through the strip-shaped scraping plate when the position of the frame moves, the scraped impurities enter the inside of the strip-shaped groove to be collected, after one end of the strip-shaped groove corresponds to the groove body, the sealing block is moved out of the groove body to seal the groove body, the output end of the micro motor rotates to drive the threaded screw rod to rotate, the position of the sliding ring slides when the threaded screw rod rotates, the position of the sliding ring moves, the sliding block drives the position of the square scraping plate to move, the position of the scraping plate is scraped by the sliding block to scrape the position of the groove, the impurities filtered impurities at the top of the filter plate are removed to the top of the filter plate, and the impurities are removed to the inside of the strip-shaped groove is removed, and the impurity is removed to be removed by the inside of the strip-shaped groove, and the impurity is removed by the filter plate is removed, and the impurity is removed when the impurity is removed from the inside of the filter tower is removed, and the human body is can be removed, and the impurity is avoided is removed;
4. According to the invention, the water level monitor is arranged to monitor the water level of the adsorption liquid used in the alkaline washing tower for treating the tail gas of the polyethylene production, during the use period of the alkaline washing tower for treating the tail gas of the polyethylene production, the water source in the circulating water tank can enter the interior of the communicating vessel through the water pipe, so that the floating block floats and pushes the position of the pressurizing block to move through the short rod, the top of the pressurizing block extrudes the bottom of the square block, the square block contracts and enters the interior of the square pipe, when the water level in the circulating water tank is too low, the water pipe can enable the liquid in the communicating vessel to descend, the floating block drives the position of the pressurizing block to descend, the pressure is not applied to the square block after the position of the pressurizing block moves, the pressurizing spring resets and pushes the square block to slide in the interior of the square pipe, the position of the connecting block is driven to move when the position of the square block, the connecting block moves, the current in the power supply assembly flows through the first conducting block and the second conducting block to enter the interior of the warning lamp, so that the warning lamp is enabled to flash, and a worker is reminded of the scintillation of the liquid in the polyethylene production, and the adsorption liquid required to be added in the alkaline washing tower for treating the tail gas is less.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic diagram of a purifier according to the present invention;
FIG. 4 is a schematic view of a cylinder structure of the present invention;
FIG. 5 is a schematic view of a filter plate structure of the present invention;
FIG. 6 is a schematic diagram of a frame structure of the present invention;
FIG. 7 is a schematic view of a square scraper of the present invention;
FIG. 8 is a schematic view of a square groove structure of the present invention;
FIG. 9 is a schematic view of a water level monitor according to the present invention;
FIG. 10 is a schematic view of structure A of the present invention;
fig. 11 is a flowchart of the operation of the present invention.
In the figure: 1. a tower body; 2. an air inlet pipe; 3. a circulation water tank; 4. a water pump; 5. a water supply pipe; 6. a sprayer; 7. a filler layer; 8. a demister; 9. an activated carbon plate; 10. an exhaust duct; 11. a cylinder; 12. a purifier; 13. a connecting pipe; 14. an exhaust groove; 15. a pipe; 16. a mounting frame; 17. a cylinder; 18. a spray head; 19. a filter cartridge; 20. a conical groove; 21. a discharge pipe; 22. a support plate; 23. an electric push rod; 24. a seal ring; 25. a support block; 26. a storage groove; 27. an annular scraping plate; 28. a filter plate; 29. a protective box; 30. a servo motor; 31. a rotating shaft; 32. a frame; 33. a bar-shaped groove; 34. a strip-shaped scraping plate; 35. a square groove; 36. a seal box; 37. a micro motor; 38. a threaded screw rod; 39. a slip ring; 40. a sliding block; 41. a square scraper; 42. a guide plate; 43. a sealing block; 44. a tank body; 45. a water level monitor; 46. a water pipe; 47. a communicating vessel; 48. a floating block; 49. a short bar; 50. pressurizing the block; 51. a guide rod; 52. a guide block; 53. a warning light; 54. a driver; 55. a pressing spring; 56. square tube; 57. square blocks; 58. a connecting block; 59. a power supply assembly; 60. a first conductive sheet; 61. and a second conductive sheet.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, 2 and 11, an embodiment of the present invention provides: the utility model provides an alkaline washing tower that polyethylene production tail gas was handled and was used, including tower body 1, the outer wall of tower body 1 is provided with intake pipe 2, the bottom of tower body 1 is provided with circulation tank 3, the inner wall top of circulation tank 3 is provided with water pump 4, the outer wall of tower body 1 is provided with delivery pipe 5, and the input of delivery pipe 5 is connected with the output of water pump 4, the inner wall of tower body 1 is provided with three group's shower 6, and the input of shower 6 is connected with the output of delivery pipe 5, the inner wall of tower body 1 is provided with packing layer 7, and packing layer 7 is located one side of shower 6, the inner wall of tower body 1 is provided with defroster 8, and defroster 8 is located the top of shower 6, the top of tower body 1 is provided with activated carbon sheet 9, and activated carbon sheet 9 is located the top of defroster 8, the top fixedly connected with exhaust cylinder 10 of tower body 1, when using alkaline washing tower to handle the tail gas that produces when polyethylene production, the generated tail gas enters the tower body 1 through the air inlet pipe 2 and then flows upwards, the water pump 4 is enabled to work to extract alkaline adsorption liquid in the circulating water tank 3, after the adsorption liquid enters the sprayer 6 through the water supply pipe 5, the sprayer 6 enables the adsorption liquid to form water mist to be sprayed downwards and be contacted with the tail gas flowing upwards, then particles carried in the tail gas can be purified, the contact area between the liquid and air flow can be increased by the packing layer 7, the reaction absorption area of the liquid is increased, when the purified gas passes through the demister 8, the demister 8 can filter water vapor carried in the gas and further enable the water vapor to be dried, the activated carbon plate 9 filters the air, the purified and filtered air flows to the outside through the air exhaust barrel 10, the circulating water tank 3 is cylindrical in shape, the top is fixedly connected with the bottom of the tower body 1, the diameter of the outer ring at the top end of the exhaust cylinder 10 is equal to the diameter of the inner ring of the connecting pipe 13, the size of the supporting plate 22 is equal to the size of the inner wall of the purifier 12, the supporting block 25 is fixedly arranged on the inner wall of the purifier 12, the shape of the supporting block 25 is disc-shaped, and the diameter of the outer ring is equal to the diameter of the inner ring of the filter cylinder 19.
Referring to fig. 1, 3 and 4, three groups of cylinders 11 are fixedly installed at the top end of a tower body 1, a purifier 12 is fixedly connected to the top end of the cylinders 11, the purifier 12 comprises a connecting pipe 13, an exhaust groove 14, a mounting frame 16 and a cylinder 17, the connecting pipe 13 is arranged at the bottom of the purifier 12, the inner wall of the purifier 12 is provided with the exhaust groove 14, one end of the connecting pipe 13 is in sealing connection with the input end of the exhaust groove 14, a pipeline 15 is arranged at the top of the exhaust groove 14, the mounting frame 16 is fixedly installed inside the purifier 12, the outer wall of the cylinder 17 is connected with the outer wall of the mounting frame 16, a filter cylinder 19 is arranged on the inner wall of the cylinder 17, a spray head 18 is embedded and installed on the inner wall of the filter cylinder 19, the output end of the pipeline 15 is in sealing connection with the input end of the spray head 18, the inner wall of the purifier 12 is provided with a conical groove 20, and the bottom of the conical groove 20 is sealed by a plate body, the top end of the cylinder 17 extends to the inside of the conical groove 20, the top end of the conical groove 20 is connected with a discharge pipe 21, the top end of the discharge pipe 21 extends to the inside of the purifier 12, a supporting plate 22 is arranged on the inner wall of the purifier 12, when the purified gas does not reach the standard, the cylinder 11 is enabled to work to drive the connecting pipe 13 to move through the purifier 12 when the purified gas is further purified, after the connecting pipe 13 is connected with the air exhaust pipe 10, the gas discharged by the air exhaust pipe 10 flows into the inside of the air exhaust groove 14, the air exhaust groove 14 enables the air to flow into the filter cylinder 19 through a spray head 18 through a pipeline 15, the filter cylinder 19 further purifies and filters the entering gas, the filtered gas flows into the inside of the conical groove 20 through the cylinder 17 and then flows to the outside through the discharge pipe 21, the aim of improving the purification efficiency of the alkaline washing tower for treating the tail gas of polyethylene production is achieved.
Referring to fig. 3 and 4, an electric push rod 23 is fixedly installed at the top of a supporting plate 22, a sealing ring 24 is embedded at the bottom of a cylinder 17, one end of the electric push rod 23 is penetrated in the corresponding sealing ring 24, a supporting block 25 is fixedly connected to the top of the electric push rod 23, a containing groove 26 is embedded at the top of the supporting block 25, an annular scraping plate 27 is fixedly connected to the top of the supporting block 25, the annular scraping plate 27 is positioned on one side of the containing groove 26, when impurities filtered by a filter cylinder 19 are removed, the electric push rod 23 pushes the supporting block 25 to move, when the supporting block 25 moves, the position of the annular scraping plate 27 moves, the top annular scraping plate 27 is attached to the inner wall of the filter cylinder 19, adsorbed matters filtered by the inner wall of the filter cylinder 19 can be scraped, and the scraped impurities can slide and fall into the containing groove 26 to be collected through the annular scraping plate 27, so that the filtered impurities are collected.
Referring to fig. 5, 6, 7 and 8, a filter plate 28 is disposed on the inner wall of the circulation water tank 3, a protection box 29 is connected to the bottom of the filter plate 28, a servo motor 30 is disposed on the inner wall of the protection box 29, a rotating shaft 31 is fixedly connected to the output end of the servo motor 30, a frame 32 is fixedly connected to the outer wall of the rotating shaft 31, the frame 32 includes a bar groove 33 and a square groove 35, the bar groove 33 is fixedly disposed on the inner wall of the frame 32, the square groove 35 is disposed on the inner wall of the frame 32, the bottom of the square groove 35 is connected to the top of the bar groove 33, a bar scraper 34 is fixedly connected to one side of the bar groove 33, a seal box 36 is disposed on the inner wall of the square groove 35, a micro motor 37 is disposed on the inner wall of the seal box 36, a screw lead 38 is disposed on the inner wall of the square groove 35, one end of the screw lead 38 is fixedly connected to the output end of the micro motor 37, and a sliding ring 39 is mounted around the outer wall of the screw lead 38, the bottom of the sliding ring 39 is fixedly connected with a sliding block 40, the bottom of the sliding block 40 is fixedly connected with a square scraping plate 41, the inner wall of the square groove 35 is symmetrically provided with a guide plate 42, the outer wall of the guide plate 42 is attached to the outer wall of the sliding block 40, the outer wall of the circulating water tank 3 is provided with a groove body 44, the inner wall of the groove body 44 is provided with a sealing block 43, when the dirt filtered by the top of the filter plate 28 is removed, the adsorption liquid in the circulating water tank 3 is discharged to the outside, the output end of the servo motor 30 rotates to drive the frame 32 through the rotating shaft 31 to move, the impurity filtered by the top of the filter plate 28 is scraped through the bar scraping plate 34 when the position of the frame 32 moves, the scraped impurity enters the inside of the bar groove 33 to be collected, after the impurity at the top of the filter plate 28 is collected, one end of the bar groove 33 corresponds to the groove body 44, after the sealing block 43 moves out of the groove body 44 and seals the groove body 44, the output end of the micro motor 37 is rotated to drive the threaded screw rod 38 to rotate, the position of the sliding ring 39 is slid when the threaded screw rod 38 rotates, the position of the sliding ring 39 is moved to drive the square scraping plate 41 to move through the sliding block 40, the impurities in the strip groove 33 are scraped by the square scraping plate 41, the impurities in the strip groove 33 are moved to the outside, and when the impurities are moved to the outside, a worker can receive the impurities by using a container, so that the aim of collecting and removing the filtered impurities in the alkaline washing tower for treating the tail gas of polyethylene production is fulfilled, the inconvenience of cleaning by subsequent labor is avoided, the working efficiency is improved, and meanwhile, the impurities are prevented from being stacked for a long time to generate peculiar smell.
Referring to fig. 9 and 10, the outer wall of the circulation tank 3 is fixedly connected with a water level monitor 45, the inner wall of the water level monitor 45 is provided with a communicating vessel 47, the outer wall of the communicating vessel 47 is connected with a water pipe 46, one end of the water pipe 46 extends to the inside of the circulation tank 3, the inner wall of the communicating vessel 47 is provided with a floating block 48, the top of the floating block 48 is fixedly connected with a short rod 49, the top of the short rod 49 is fixedly connected with a pressing block 50, the outer wall of the pressing block 50 is symmetrically provided with a guide block 52, the inner wall of the guide block 52 is penetrated with a guide rod 51, the top of the water level monitor 45 is provided with a warning lamp 53, the inner wall of the water level monitor 45 is provided with a driver 54, the inner wall of the driver 54 is provided with a pressing spring 55, the bottom end of the pressing spring 55 is fixedly connected with a square block 57, the inner wall of the driver 54 is provided with a square pipe 56, one end of the square block 57 is penetrated inside the square pipe 56, the outer wall symmetry of square piece 57 is connected with connecting block 58, power supply module 59 is installed at the top of connecting block 58, the first conducting strip 60 of bottom fixedly connected with of connecting block 58, and first conducting strip 60 and power supply module 59 electric connection, the inner wall bottom of driver 54 is provided with second conducting strip 61, and second conducting strip 61 is located the below of first conducting strip 60, second conducting strip 61 and warning light 53 electric connection, during the alkaline tower that polyethylene production tail gas was handled, the inside water source of circulation tank 3 can enter into the inside of linker 47 through water pipe 46, and then make the floating block 48 float and promote the position removal of pressurization piece 50 through the quarter butt 49, make the top of pressurization piece 50 extrude the bottom of square piece 57, make square piece 57 shrink and enter into the inside of square pipe 56, when the water line in circulation tank 3 is too low, the liquid inside the communicating vessel 47 can be lowered through the water pipe 46, the floating block 48 drives the position of the pressurizing block 50 to be lowered, the pressurizing block 57 is not pressurized after the position of the pressurizing block 50 is moved, the pressurizing spring 55 resets to push the square block 57 to slide in the square pipe 56, the square block 57 is moved to drive the connecting block 58 to move, the connecting block 58 moves to enable the first conductive sheet 60 to be in contact with the second conductive sheet 61, the current inside the power supply assembly 59 flows into the warning lamp 53 through the first conductive sheet 60 and the second conductive sheet 61, the warning lamp 53 is enabled to flash to give an alarm, and the staff is reminded that the adsorption liquid used in the alkaline washing tower for polyethylene production tail gas treatment is too little and needs to be added.
The application method of the alkaline washing tower for treating the tail gas of the polyethylene production comprises the following steps:
s1, firstly, when the alkaline washing tower is used for treating the tail gas generated during the production of polyethylene, the generated tail gas enters the inside of the tower body 1 through the air inlet pipe 2 and flows upwards, so that the water pump 4 works to extract alkaline adsorption liquid in the circulating water tank 3, the adsorption liquid enters the inside of the sprayer 6 through the water supply pipe 5, the sprayer 6 sprays the adsorption liquid downwards to be contacted with the upwards flowing tail gas, further, the particulate matters carried in the tail gas can be purified, the contact area of the liquid and the air flow can be increased by the packing layer 7, the reaction absorption area of the liquid is increased, when the purified gas passes through the demister 8, the demister 8 can filter water vapor carried in the gas, and further, the gas is dried, the activated carbon plate 9 filters air, the purified and filtered air flows to the outside through the air exhaust barrel 10, when the purified air does not reach the standard, the air cylinder 11 works to drive the connecting pipe 13 to move through the purifier 12 when the purified air is further purified, after the connecting pipe 13 is connected with the air exhaust barrel 10, the air discharged by the air exhaust barrel 10 flows into the air exhaust groove 14, the air exhaust groove 14 enables the air to flow into the filter cylinder 19 through the spray head 18 through the pipeline 15, the filter cylinder 19 further purifies and filters the entering air, and the filtered air flows into the conical groove 20 through the cylinder 17 and then flows to the outside through the discharge pipe 21, so that the aim of improving the purification efficiency of the alkaline washing tower for treating the tail gas of polyethylene production is fulfilled;
S2, when impurities filtered by the filter cylinder 19 are removed, the electric push rod 23 pushes the supporting block 25 to move, the annular scraping plate 27 at the top end moves when the supporting block 25 moves, the annular scraping plate 27 is attached to the inner wall of the filter cylinder 19 when the annular scraping plate 27 moves, adsorbed substances filtered by the inner wall of the filter cylinder 19 can be scraped, and the scraped impurities can slide and fall into the storage groove 26 through the annular scraping plate 27 to be collected, so that the purpose of collecting the filtered impurities is achieved;
s3, after the adsorption liquid sprayed in the alkaline washing tower for treating the tail gas of polyethylene production flows back to the inside of the circulating water tank 3, impurities carried in the adsorption liquid are filtered through the filter plate 28, the filtered adsorption liquid is recycled, when dirt filtered at the top of the filter plate 28 is removed, the adsorption liquid in the circulating water tank 3 is discharged to the outside, the output end of the servo motor 30 rotates to drive the frame 32 to move through the rotating shaft 31, the impurities filtered at the top of the filter plate 28 are scraped through the strip scraper 34 when the frame 32 moves, the scraped impurities enter the inside of the strip groove 33 to be collected, after the impurities at the top of the filter plate 28 are collected, one end of the strip groove 33 corresponds to the groove body 44, after the sealing block 43 is moved out of the groove body 44 to seal the groove body 44, the output end of the micro motor 37 is rotated to drive the threaded screw rod 38 to rotate, the position of the sliding ring 39 is slid when the threaded screw rod 38 rotates, the position of the sliding ring 39 is moved to drive the position of the square scraping plate 41 to move through the sliding block 40, the position of the square scraping plate 41 scrapes impurities in the strip groove 33, the impurities in the strip groove 33 are moved to the outside, when the impurities are moved to the outside, a worker can receive the impurities by using a container, the aim of collecting and removing the filtered impurities in the alkaline washing tower for treating the tail gas of polyethylene production is fulfilled, the inconvenience of cleaning by subsequent manual work is avoided, the working efficiency is improved, and meanwhile, the impurities are prevented from being stacked for a long time to generate peculiar smell;
S4, during the use of the alkaline washing tower for treating the tail gas of polyethylene production, a water source in the circulating water tank 3 enters the interior of the communicating vessel 47 through the water pipe 46, the floating block 48 floats up to push the position of the pressurizing block 50 to move through the short rod 49, the top of the pressurizing block 50 extrudes the bottom of the square block 57, the square block 57 contracts and enters the interior of the square pipe 56, when a water level line in the circulating water tank 3 is too low, liquid in the communicating vessel 47 descends through the water pipe 46, the floating block 48 drives the position of the pressurizing block 50 to descend, the pressurizing spring 55 resets to apply no pressure to the square block 57 after the position of the pressurizing block 50 moves, the square block 57 is pushed to slide in the interior of the square pipe 56, the connecting block 58 is driven to move when the position of the square block 57 moves, after the first conducting piece 60 is contacted with the second conducting piece 61, current in the power supply assembly 59 flows through the first conducting piece 60 and the second conducting piece 61 to enter the interior of the warning lamp 53, and then the warning lamp 53 sends out little warning liquid for the tail gas of the polyethylene production, and the warning staff needs to absorb the alkaline washing liquid.
In step S1, the method further includes the steps of:
s11, connecting a joint of the pipeline 15, which is a hose, and the nozzle 18 through threads;
in step S2, the method further includes the steps of:
s21, the sealing ring 24 seals the contact part of the electric push rod 23 and the cylinder 17, so that the gas in the cylinder 17 can be effectively prevented from flowing to the outside through the contact part of the electric push rod 23;
in step S3, the method further includes the steps of:
s31, grooves are formed in the outer wall of the sliding block 40, and the sliding block 40 can be guided by the cooperation between the guide plate 42 and the grooves.
When the alkaline washing tower is used for treating the tail gas generated during the polyethylene production, the generated tail gas flows upwards after entering the inside of the tower body 1 through the air inlet pipe 2, so that the water pump 4 works to extract alkaline adsorption liquid in the circulating water tank 3, the sprayer 6 sprays the adsorption liquid downwards to be contacted with the upwards flowing tail gas after entering the inside of the sprayer 6 through the water supply pipe 5, the particle matter carried in the tail gas can be further purified, the contact area between the liquid and the air flow can be increased by the packing layer 7, the reaction absorption area of the liquid is further increased, the water vapor carried in the gas can be filtered by the demister 8 when the purified gas passes through the demister 8, the air is further dried, the air is filtered by the activated carbon plate 9, and the purified and filtered air flows to the outside through the air exhaust cylinder 10, when the purified gas does not reach the standard, the air cylinder 11 is enabled to work to drive the connecting pipe 13 to move through the purifier 12 when the purified gas is further purified, after the connecting pipe 13 is connected with the air exhaust barrel 10, the gas discharged by the air exhaust barrel 10 flows into the air exhaust groove 14, the air exhaust groove 14 enables air to flow into the filter cylinder 19 through the spray nozzle 18 through the pipeline 15, the filter cylinder 19 further purifies and filters the entering gas, the filtered gas flows into the conical groove 20 through the cylinder 17 and then flows to the outside through the discharge pipe 21, the aim of improving the purifying efficiency of the alkaline washing tower for treating the tail gas of the polyethylene production is achieved, when the impurity filtered by the filter cylinder 19 is removed, the electric push rod 23 is enabled to push the supporting block 25 to move, the top annular scraping plate 27 moves when the supporting block 25 moves, the position of the annular scraping plate 27 is attached to the inner wall of the filter cylinder 19 when moving, the adsorbate filtered by the inner wall of the filter cylinder 19 can be scraped, the scraped impurity can slide and fall into the storage groove 26 through the annular scraping plate 27 to be collected, the purpose of collecting the filtered impurity is achieved, after the adsorption liquid sprayed in the alkaline washing tower for treating the tail gas of polyethylene production flows back to the inside of the circulating water tank 3, the impurity carried in the adsorption liquid is filtered through the filter plate 28, the filtered adsorption liquid is recycled, when the dirt filtered at the top of the filter plate 28 is removed, the adsorption liquid in the circulating water tank 3 is discharged to the outside, the output end of the servo motor 30 rotates to drive the position of the frame 32 through the rotating shaft 31, the impurity filtered at the top of the filter plate 28 is scraped through the strip scraping plate 34 when the position of the frame 32 is moved, the scraped impurities can enter the inside of the strip groove 33 to be collected, after the impurities at the top of the filter plate 28 are collected, one end of the strip groove 33 corresponds to the groove body 44, after the sealing block 43 is moved out of the groove body 44 to seal the groove body 44, the output end of the micro motor 37 is rotated to drive the threaded screw rod 38 to rotate, the position of the sliding ring 39 is slid when the threaded screw rod 38 rotates, the position of the sliding ring 39 is moved to drive the square scraping plate 41 to move through the sliding block 40, the position of the square scraping plate 41 is moved to scrape the impurities in the strip groove 33, the impurities in the strip groove 33 are moved to the outside, when the impurities are moved to the outside, a worker can receive the impurities by using a container, the aim of collecting and removing the filtered impurities in the alkaline washing tower for treating the tail gas of polyethylene is achieved, the inconvenience of cleaning the subsequent manual work is avoided, the utility model provides an improved work efficiency, the long-time stacking production peculiar smell of impurity has been avoided simultaneously, the alkaline tower that polyethylene production tail gas was handled and is used uses the period, the inside water source of circulation tank 3 can enter into the inside of linker 47 through water pipe 46, and then make the floating block 48 float and promote the position of pressurizing piece 50 through the quarter butt 49 and remove, make the top of pressurizing piece 50 extrude the bottom of square piece 57, make the inside that square piece 57 shrink enter into square pipe 56, when the water line in circulation tank 3 is too low, can make the inside liquid of linker 47 descend through water pipe 46, and then make the floating block 48 drive the position of pressurizing piece 50 descend, the position of pressurizing piece 50 is no longer exerted pressure to square piece 57 after removing, the pressure spring 55 resets and can promote the position of square piece 57 at the inside sliding position of square pipe 56, drive the position of connecting block 58 when the position of square piece 57 removes, make the inside electric current of power supply module 59 flow through first conducting piece 60 and second conducting piece 61 and get into the inside of lamp 53 through first conducting piece 60 and second conducting piece 61 and flow, and then the inside that the inside of alert and send out the inside warning light 53 of alert that the polyethylene production tail gas is required to be adsorbed by the personnel, the inside the alert tower is used to be added to the alert the absorption liquid.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. An alkaline washing tower for treating tail gas from polyethylene production, which is characterized by comprising:
the novel energy-saving tower comprises a tower body (1), wherein an air inlet pipe (2) is arranged on the outer wall of the tower body (1), and a circulating water tank (3) is arranged at the bottom of the tower body (1);
three groups of cylinders (11) are fixedly arranged at the top end of the tower body (1), a purifier (12) is fixedly connected to the top end of each cylinder (11), each purifier (12) comprises a connecting pipe (13), an exhaust groove (14), a mounting frame (16) and a cylinder (17), each connecting pipe (13) is arranged at the bottom of each purifier (12), the exhaust grooves (14) are formed in the inner wall of each purifier (12), one end of each connecting pipe (13) is in sealing connection with the input end of each exhaust groove (14), a pipeline (15) is arranged at the top of each exhaust groove (14), a mounting frame (16) is fixedly arranged in each purifier (12), and the outer wall of each cylinder (17) is connected with the outer wall of each mounting frame (16);
The inner wall of the cylinder (17) is provided with a filter cylinder (19), a spray head (18) is embedded and installed on the inner wall of the filter cylinder (19), and the output end of the pipeline (15) is connected with the input end of the spray head (18) in a sealing way;
the utility model discloses a circulating water tank, including circulating water tank (3), inner wall top of circulating water tank (3) is provided with water pump (4), the outer wall of tower body (1) is provided with delivery pipe (5), and the input of delivery pipe (5) is connected with the output of water pump (4), the inner wall of tower body (1) is provided with three group's shower (6), and the input of shower (6) is connected with the output of delivery pipe (5), the inner wall of tower body (1) is provided with packing layer (7), and packing layer (7) are located one side of shower (6), the inner wall of tower body (1) is provided with defroster (8), and defroster (8) are located the top of shower (6), the top of tower body (1) is provided with activated carbon plate (9), and activated carbon plate (9) are located the top of defroster (8), the top fixedly connected with row dryer (10);
the inner wall of the purifier (12) is provided with a conical groove (20), the bottom of the conical groove (20) is sealed through a plate body, the top end of the cylinder (17) extends to the inside of the conical groove (20), the top end of the conical groove (20) is connected with a discharge pipe (21), the top end of the discharge pipe (21) extends out of the inside of the purifier (12), and a supporting plate (22) is arranged on the inner wall of the purifier (12);
The top of the supporting plate (22) is fixedly provided with an electric push rod (23), the bottom of the cylinder (17) is embedded with a sealing ring (24), one end of the electric push rod (23) is penetrated into the corresponding sealing ring (24), the top of the electric push rod (23) is fixedly connected with a supporting block (25), the top of the supporting block (25) is embedded with a containing groove (26), the top of the supporting block (25) is fixedly connected with an annular scraping plate (27), and the annular scraping plate (27) is positioned on one side of the containing groove (26);
the appearance of circulation water tank (3) is cylindric, and the bottom fixed connection of top and tower body (1), the diameter of exhaust section of thick bamboo (10) top outer lane equals with the diameter of connecting pipe (13) inner circle, and the size of backup pad (22) equals with the inner wall size of clarifier (12), fixed the setting in the inner wall of clarifier (12), and the appearance of supporting shoe (25) is discoid, and outer lane diameter equals with the inner circle diameter of straining section of thick bamboo (19).
2. The alkaline scrubber for treating tail gas from polyethylene production according to claim 1, wherein: the inner wall of circulation water tank (3) is provided with filter plate (28), and the bottom of filter plate (28) is connected with protective housing (29), and the inner wall of protective housing (29) is provided with servo motor (30), and the output fixedly connected with pivot (31) of servo motor (30), the outer wall fixedly connected with frame (32) of pivot (31).
3. An alkaline scrubber for treating tail gas from polyethylene production as claimed in claim 2, wherein: the frame (32) includes bar groove (33) and square groove (35), bar groove (33) fixed setting is at the inner wall of frame (32), square groove (35) set up the inner wall at frame (32), and the bottom of square groove (35) is connected with the top of bar groove (33), one side fixedly connected with bar scraper blade (34) of bar groove (33), the inner wall of square groove (35) is provided with seal box (36), the inner wall of seal box (36) is provided with micro motor (37), the inner wall of square groove (35) is provided with screw lead screw (38), and the one end and the output fixed connection of micro motor (37) of screw lead screw (38), sliding ring (39) are installed in the outer wall surrounding of screw lead screw (38), the bottom fixedly connected with sliding block (40) of sliding ring (39), the bottom fixedly connected with square scraper blade (41) of sliding block (40), the inner wall symmetry of square groove (35) is provided with deflector (42), and the outer wall of deflector (42) is laminated with the outer wall of sliding block (40), the outer wall of circulation water tank (3) is provided with inner wall (44) of sealing block (43).
4. A caustic wash tower for treating polyethylene production tail gas according to claim 3, wherein: the utility model discloses a circulating water tank, the outer wall fixedly connected with water level monitor (45) of circulating water tank (3), the inner wall of water level monitor (45) is provided with linker (47), the outer wall of linker (47) is connected with water pipe (46), and the one end of water pipe (46) extends to the inside of circulating water tank (3), the inner wall of linker (47) is provided with floating block (48), the top fixedly connected with quarter butt (49) of floating block (48), the top fixedly connected with presser bar (50) of quarter butt (49), guide block (52) are installed to the outer wall symmetry of presser bar (50), guide rod (51) are worn to the inner wall of guide block (52), the top of water level monitor (45) is provided with warning light (53), the inner wall of water level monitor (45) is provided with driver (54), the inner wall of driver (54) is provided with pressure spring (55), the bottom fixedly connected with square block (57) of pressure spring (55), the inner wall of driver (54) is provided with square tube (56), and the one end of square block (57) wears to establish in the inside of square tube (56), the outer wall symmetry of square block (58) is connected with square connecting block (58), the top connecting block (58) is connected with a fixed connection piece (60), the first conductive sheet (60) is electrically connected with the power supply assembly (59), the second conductive sheet (61) is arranged at the bottom of the inner wall of the driver (54), the second conductive sheet (61) is positioned below the first conductive sheet (60), and the second conductive sheet (61) is electrically connected with the warning lamp (53).
5. A method of using a caustic wash tower for treating tail gas from polyethylene production as defined in any one of claims 1 to 4, comprising:
s1, firstly, when tail gas generated during polyethylene production is treated by an alkaline washing tower, the generated tail gas flows upwards after entering the inside of a tower body (1) through an air inlet pipe (2), a water pump (4) is enabled to work to extract alkaline adsorption liquid in the circulating water tank (3), the adsorption liquid enters the inside of a sprayer (6) through a water supply pipe (5), the sprayer (6) enables the adsorption liquid to form water mist to spray downwards and be contacted with the tail gas flowing upwards, particulate matters carried in the tail gas can be purified, a packing layer (7) can increase the contact area of liquid and air flow, the reaction absorption area of the packing layer can be increased, when the purified gas passes through the demister (8), the water vapor carried in the gas can be filtered, the demister (8) can be dried, an active carbon plate (9) is enabled to filter air, the purified air flows to the outside through an exhaust duct (10), when the purified gas does not reach the standard, a cylinder (11) is enabled to work to pass through a purifier (12) to drive a position of the connecting pipe (13) to move to a filter drum (14) to enable the air to flow to enter an exhaust duct (14) through an exhaust duct (14) to enter a connecting pipe (14) to be connected with an exhaust duct (14), the filter cylinder (19) further purifies and filters the entering gas, and the filtered gas flows into the conical groove (20) through the cylinder (17) and then flows to the outside through the discharge pipe (21), so that the aim of improving the purifying efficiency of the alkaline washing tower for treating the tail gas of the polyethylene production is fulfilled;
S2, when impurities filtered by the filter cylinder (19) are removed, the electric push rod (23) is enabled to push the supporting block (25) to move, the annular scraping plate (27) at the top end moves when the supporting block (25) moves, the annular scraping plate (27) is attached to the inner wall of the filter cylinder (19) when the annular scraping plate moves, adsorbed substances filtered by the inner wall of the filter cylinder (19) can be scraped, and the scraped impurities can slide and fall into the storage groove (26) through the annular scraping plate (27) to be collected, so that the purpose of collecting the filtered impurities is achieved;
s3, after the adsorption liquid sprayed inside the alkaline washing tower for polyethylene production tail gas treatment flows back to the inside of the circulating water tank (3), impurities carried in the adsorption liquid are filtered through the filter plate (28), the filtered adsorption liquid is recycled, when dirt filtered at the top of the filter plate (28) is removed, the adsorption liquid inside the circulating water tank (3) is discharged to the outside, the output end of the servo motor (30) rotates to drive the position of the frame (32) to move through the rotating shaft (31), the impurities filtered at the top of the filter plate (28) are scraped through the strip-shaped scraping plate (34) when the position of the frame (32) moves, the scraped impurities enter the inside of the strip-shaped groove (33), after the impurities at the top of the filter plate (28) are collected, one end of the strip-shaped groove (33) corresponds to the groove body (44), after the sealing block (43) moves out of the inside of the groove body (44) to seal the groove body (44), the output end of the micro motor (37) rotates to drive the threaded screw (38) to rotate, the sliding screw (39) moves to the square groove (41) when the sliding block (39) moves to the square groove (41) to move to the outside, when the impurities move to the outside, a worker can use the container to receive the impurities, so that the purpose of collecting and removing the filtered impurities in the alkaline washing tower for treating the tail gas of polyethylene production is achieved, the inconvenience of subsequent manual cleaning is avoided, the working efficiency is improved, and meanwhile, the impurities are prevented from being piled for a long time to generate peculiar smell;
S4, during the use of an alkaline washing tower for treating tail gas of polyethylene production, a water source in the circulating water tank (3) enters the interior of the communicating vessel (47) through the water pipe (46), so that the floating block (48) floats and pushes the position of the pressurizing block (50) to move through the short rod (49), the top of the pressurizing block (50) extrudes the bottom of the square block (57), the square block (57) contracts and enters the interior of the square pipe (56), when a water level line in the circulating water tank (3) is too low, the water pipe (46) can enable liquid in the interior of the communicating vessel (47) to descend, the floating block (48) drives the position of the pressurizing block (50) to descend, the pressurizing block (57) does not apply pressure any more after the position of the pressurizing block (50) moves, the spring (55) resets and pushes the square block (57) to slide in the interior of the square pipe (56), the position of the square block (57) moves, the connecting block (58) is driven to move, the first conductive sheet (60) and the second conductive sheet (61) are contacted with the first conductive sheet (61) to the second conductive sheet (53) to the warning lamp (53) to send out a warning current, the staff is reminded that the adsorption liquid used in the alkaline washing tower for treating the tail gas of polyethylene production is too little, and the adsorption liquid needs to be added.
6. The method of using a caustic scrubber for treating tail gas from polyethylene production according to claim 5, wherein in step S1, the method further comprises the steps of:
s11, connecting a joint of the pipeline (15) which is a hose and the spray head (18) through threads;
in the step S2, the method further includes the following steps:
s21, the sealing ring (24) seals the contact part of the electric push rod (23) and the cylinder (17), so that the gas in the cylinder (17) can be effectively prevented from flowing to the outside through the contact part of the electric push rod (23);
in the step S3, the method further includes the following steps:
s31, grooves are formed in the outer wall of the sliding block (40), and the sliding block (40) can be guided through cooperation between the guide plates (42) and the grooves.
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| JP2005074411A (en) * | 2003-09-04 | 2005-03-24 | Kenji Nakajima | Exhaust gas purifying device and method |
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