CN117654107B - Liquefied gas MTBE extraction desulfurization equipment - Google Patents
Liquefied gas MTBE extraction desulfurization equipment Download PDFInfo
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- CN117654107B CN117654107B CN202410147530.2A CN202410147530A CN117654107B CN 117654107 B CN117654107 B CN 117654107B CN 202410147530 A CN202410147530 A CN 202410147530A CN 117654107 B CN117654107 B CN 117654107B
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- Prior art keywords
- wall
- bin
- desulfurizing tower
- fixed
- ring
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- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 title claims abstract description 89
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 35
- 230000023556 desulfurization Effects 0.000 title claims abstract description 35
- 238000000605 extraction Methods 0.000 title claims abstract description 13
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 72
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000007921 spray Substances 0.000 claims description 24
- 238000004140 cleaning Methods 0.000 claims description 16
- 239000013049 sediment Substances 0.000 claims description 11
- 239000007788 liquid Substances 0.000 abstract description 36
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 47
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 12
- 229910052717 sulfur Inorganic materials 0.000 description 12
- 239000011593 sulfur Substances 0.000 description 12
- 238000005457 optimization Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000006079 antiknock agent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003254 gasoline additive Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/04—Solvent extraction of solutions which are liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/0804—Cleaning containers having tubular shape, e.g. casks, barrels, drums
- B08B9/0808—Cleaning containers having tubular shape, e.g. casks, barrels, drums by methods involving the use of tools, e.g. by brushes, scrapers
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/34—Separation; Purification; Stabilisation; Use of additives
- C07C41/38—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a liquefied gas MTBE extraction desulfurization device, which relates to the field of liquefied gas MTBE extraction desulfurization, and adopts the technical scheme that: including desulfurizing tower support, desulfurizing tower, air inlet, desulfurizing tower support top with desulfurizing tower bottom fixed connection, the air inlet is seted up desulfurizing tower one side outer wall, desulfurizing tower inner wall fixed mounting has the fixed plate, fixed plate inner wall fixed mounting has a plurality of to walk the gas pipe, it has the swash plate to walk gas pipe top outer wall fixed mounting, the swash plate outer wall with desulfurizing tower inner wall fixed connection, fixed plate bottom inner wall fixed mounting has a plurality of connecting pipe, desulfurizing tower top inner wall fixed mounting has the defroster. The invention ensures that a large amount of attachments cannot be precipitated in the liquid in the water tank of the desulfurizing tower, and is beneficial to technicians to more accurately measure each numerical value of the liquid in the water tank.
Description
Technical Field
The invention belongs to the technical field of liquid gas MTBE extraction and desulfurization, and particularly relates to liquid gas MTBE extraction and desulfurization equipment.
Background
Methyl tert-butyl ether (MTBE), which is an organic compound that is colorless transparent liquid, insoluble in water, easily soluble in ethanol and diethyl ether, is an excellent high-octane gasoline additive and antiknock agent, and is a product that is extracted by extraction equipment after isobutene separated from petroleum refining process reacts with liquefied gas at high temperature;
and after the MTBE is extracted and refined, a large amount of sulfur is contained in the MTBE, and the sulfur in the MTBE needs to be absorbed through a desulfurizing tower.
In the prior art, MTBE is conveyed to a water tank at the bottom of a desulfurizing tower, gas which can be adhered with sulfur in MTBE is blown upwards in the water tank, sulfur dispersed in the water tank is mixed into large-particle solid through the gas, and the MTBE can be subjected to the next operation through a gas pipeline.
After the operations, sulfur mixed in the sulfur removal tower is precipitated at the bottom of the water tank of the sulfur removal tower, and when the liquid in the water tank needs to be replaced, the floats are difficult to leave the water tank through the pipeline, so that when the liquid in the water tank is detected, the liquid in the water tank is mixed with the residual floats, the detection index of the water tank is affected, and misjudgment is easily caused by technicians.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides the following technical scheme: an apparatus for the extraction and desulfurization of liquefied gas MTBE comprising: a desulfurizing tower bracket, a desulfurizing tower and an air inlet;
the top of the desulfurizing tower bracket is fixedly connected with the bottom of the desulfurizing tower, and the air inlet is formed in the outer wall of one side of the desulfurizing tower;
the inner wall of the desulfurizing tower is fixedly provided with a fixed plate, the inner wall of the fixed plate is fixedly provided with a plurality of gas passing pipes, the outer wall of the top of each gas passing pipe is fixedly provided with a sloping plate, the outer wall of each sloping plate is fixedly connected with the inner wall of the desulfurizing tower, the inner wall of the bottom of the fixed plate is fixedly provided with a plurality of connecting pipes, and the inner wall of the top of the desulfurizing tower is fixedly provided with a demister;
the desulfurization tower is fixedly provided with a first water outlet pipe below the inclined plate, a second water outlet pipe above the inclined plate, and a third water outlet pipe above the demister;
a fixed bin is fixedly arranged at the bottom of the desulfurization tower, and a collecting bin is fixedly arranged at the bottom of the fixed bin;
the desulfurizing tower inner wall is connected with cleaning device, cleaning device is used for cleaning attached debris on the desulfurizing tower inner wall, fixed bin with collect the storehouse inner wall and all be connected with collection device, collection device is used for collecting the precipitate that deposits in desulfurizing tower inner wall bottom
As a preferable aspect of the above-mentioned technical solution, the cleaning device includes: the device comprises an upper connecting bin, a fixed ring, a lower connecting bin and a connecting block;
the bottom of the upper connecting bin is fixedly connected with the top of the fixed ring, the bottom of the fixed ring is fixedly connected with the top of the lower connecting bin, and the middle inner walls of the upper connecting bin, the fixed ring and the lower connecting bin are fixedly connected with the outer wall of the connecting block;
cavities are formed in the upper side and the lower side of the connecting block, and the two cavities are respectively communicated with the inner spaces of the upper connecting bin and the lower connecting bin;
the outer walls of the upper connecting bin, the fixed ring and the lower connecting bin are all in sliding connection with the inner wall of the desulfurizing tower, and the upper side and the lower side of the connecting block are all fixedly connected with the inner wall of the bottom of the desulfurizing tower through connecting hoses;
the opposite surface outer walls of the upper connecting bin and the lower connecting bin are respectively provided with a circular protrusion, the other ends of the protrusions are respectively provided with an inclined angle of forty-five degrees, and a plurality of spray heads are respectively fixedly installed on the opposite surface outer walls of the upper connecting bin and the lower connecting bin.
As the optimization of the technical scheme, the inner wall of the fixed ring is provided with a cavity, and the cavity is arranged on the inner wall of the fixed ring and communicated with the cavities on the upper side and the lower side of the connecting block.
As the optimization of the technical scheme, the heights of the spray heads on the upper connecting bin and the lower connecting bin are lower than the heights of the bulges on the upper connecting bin and the lower connecting bin.
As a preferable aspect of the above-described aspect, the collecting device includes: two electric telescopic rods, a connecting rod, a moving plate and a rubber ring;
the two electric telescopic rods are fixedly connected with the outer wall of the desulfurizing tower support, the two electric telescopic rods are fixedly connected with the bottom of the connecting rod, the top of the connecting rod is fixedly connected with the bottom of the moving plate, the rubber ring is fixedly arranged on the outer wall of the moving plate, and the outer wall of the rubber ring is in sliding connection with the inner wall of the fixed bin.
As the optimization of the technical scheme, the outer wall of the connecting rod is respectively in sliding connection with the inner walls of the fixed bin and the collecting bin, and the diameter of the top of the connecting rod is smaller than that of the bottom of the connecting rod.
As the optimization of the technical scheme, the inner wall of the fixed bin is provided with a plurality of semicircular convex blocks, and the circumference of the rubber ring is provided with a plurality of semicircular grooves.
As the optimization of the technical scheme, the plurality of grooves on the circumference of the rubber ring can be mutually clamped with the plurality of protruding blocks on the inner wall of the fixed bin.
As the preference of above-mentioned technical scheme, movable plate bottom fixed mounting has the go-between, fixed storehouse inner wall bottom fixed mounting has the collar, a plurality of opening has been seted up to the go-between outer wall, an opening has been seted up to the collar outer wall, go-between inner ring diameter with the collar outer lane diameter is the same, and both can block each other.
The beneficial effects of the invention are as follows:
through setting up collection device, carry out desulfurization work again, drive connecting rod and movable plate through electric telescopic handle and upwards remove to leave fixed storehouse, liquid and precipitate are surging in to fixed storehouse because of atmospheric pressure, and rethread electric telescopic handle drives connecting rod and movable plate and moves down, and liquid is extruded from the recess on the rubber ring. And a large amount of sediment can be blocked by the connecting ring, and the movable plate drives most of sediment to move to the bottom of the fixed bin. When the movable plate reaches the bottom, the grooves on the circumference of the rubber ring are clamped with the convex blocks on the inner wall of the fixed bin, and meanwhile, the connecting ring is also clamped with the fixed ring, so that a cavity is formed between the movable plate and the fixed bin. The vacuum pump is connected to one side of the collecting bin to pump attachments in the moving plate, the fixing bin and the collecting bin, so that a large amount of attachments are cleaned, a large amount of attachments cannot be precipitated in liquid in the water tank of the desulfurizing tower, and each numerical value of the liquid in the water tank can be measured more accurately by technicians.
Drawings
FIG. 1 is a three-dimensional perspective view of a desulfurizing tower;
FIG. 2 is a schematic cross-sectional view of a desulfurizing tower;
FIG. 3 is a schematic view showing the internal components of the desulfurizing tower;
FIG. 4 is a schematic view showing a desulfurizing tower;
FIG. 5 shows a schematic explosion diagram of a collection device;
FIG. 6 shows a second schematic explosion diagram of the collection device;
FIG. 7 illustrates a three-dimensional perspective view of a cleaning device;
FIG. 8 shows an exploded view of a cleaning device;
FIG. 9 shows a schematic cross-sectional view of a retaining ring;
fig. 10 shows an enlarged view of region a of fig. 9.
In the figure: desulfurizing tower support 1, desulfurizing tower 2, air inlet 3, fixed plate 4, gas pipe 5, swash plate 6, connecting pipe 7, first outlet pipe 8, second outlet pipe 9, defroster 10, third outlet pipe 11, go up connecting bin 12, solid fixed ring 13, connect bin 14 down, shower nozzle 15, connecting block 16, solid fixed bin 17, collect bin 18, electric telescopic handle 19, connecting rod 20, movable plate 21, rubber ring 22, go-between 23, collar 24.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments.
The invention provides a liquefied gas MTBE extraction desulfurization device, which is shown in figures 1-10 and comprises a desulfurization tower bracket 1, a desulfurization tower 2 and an air inlet 3;
when the desulfurizing tower 2 is used, the first water outlet pipe 8, the second water outlet pipe 9 and the third water outlet pipe 11 are required to be connected with a conventional vacuum pump, and liquid which can be adhered with sulfur is conveyed by the vacuum pump to enter the first water outlet pipe 8, the second water outlet pipe 9 and the third water outlet pipe 11;
the top of the desulfurizing tower bracket 1 is fixedly connected with the bottom of the desulfurizing tower 2, the air inlet 3 is arranged on the outer wall of one side of the desulfurizing tower 2, the inner wall of the desulfurizing tower 2 is fixedly provided with a fixed plate 4, the inner wall of the fixed plate 4 is fixedly provided with a plurality of air passing pipes 5, the outer wall of the top of the air passing pipes 5 is fixedly provided with a sloping plate 6, the outer wall of the sloping plate 6 is fixedly connected with the inner wall of the desulfurizing tower 2, the inner wall of the bottom of the fixed plate 4 is fixedly provided with a plurality of connecting pipes 7, the inner wall of the top of the desulfurizing tower 2 is fixedly provided with a demister 10, the desulfurizing tower 2 is fixedly provided with a second water outlet pipe 9 above the sloping plate 6, the desulfurizing tower 2 is fixedly provided with a third water outlet pipe 11 above the demister 10, when the MTBE is desulfurized, the air inlet 3 and MTBE extraction equipment are connected, so that MTBE gas enters the desulfurizing tower 2 from the air inlet 3, when the MTBE gas enters the air inlet 3, a vacuum pump connected with the first water outlet pipe 8 is started, as shown in fig. 3, a plurality of spray heads are uniformly distributed at the bottom of the first water outlet pipe 8, so that the liquid capable of being adhered to sulfur is sprayed to contact with the MTBE gas through the spray heads, after the liquid contacts with the MTBE gas, the liquid flows into the connecting pipe 7, meanwhile, the MTBE gas flows into the connecting pipe 7, the MTBE gas and the liquid enter the bottom of the desulfurizing tower 2, the bottom of the desulfurizing tower 2 is a pool, a large amount of liquid is infused into the MTBE gas and the mixed liquid react with the liquid in the pool, then the MTBE gas containing a small amount of sulfur flows to the upper side of the inclined plate 6 through the gas pipe 5, at the moment, the vacuum pump connected with the second water outlet pipe 9 is started, as shown in fig. 3, the spray heads are arranged at the bottom of the second water outlet pipe 9, the liquid which can adhere to sulfur is sprayed again through the spray nozzle to carry out secondary desulfurization on MTBE gas, the scattered liquid flows to the lower part of the inclined plate 6, a connecting pipe is arranged at the lower part of the inclined plate 6 and is connected with an external container, so that the scattered liquid can be discharged out of the desulfurization tower 2 from the connecting pipe, the MTBE gas subjected to secondary desulfurization can continue to flow upwards, when the MTBE gas contacts the demister 10, because the demister 10 is a cylindrical device consisting of a plurality of fixing plates with S-shaped cross sections, when the MTBE gas contacts the demister 10, the S-shaped channel can inhibit the flow of the gas, thereby preventing the MTBE gas from forming mist flowing at a high speed, meanwhile, when the MTBE gas passes through the demister 10, a vacuum pump connected with a third water outlet pipe 11 is required to be started, and the spray nozzle is also arranged on the third water outlet pipe 11, different in the water source sprayed for carrying out the upward cooling on the MTBE gas, and finally the MTBE gas can leave the desulfurization tower 2 through an opening at the top of the desulfurization tower 2;
the bottom of the upper connecting bin 12 is fixedly connected with the top of the fixed ring 13, the bottom of the fixed ring 13 is fixedly connected with the top of the lower connecting bin 14, the middle inner walls of the upper connecting bin 12, the fixed ring 13 and the lower connecting bin 14 are fixedly connected with the outer wall of the connecting block 16, the upper side and the lower side of the connecting block 16 are respectively provided with cavities, the two cavities are respectively communicated with the inner spaces of the upper connecting bin 12 and the lower connecting bin 14, the outer walls of the upper connecting bin 12, the fixed ring 13 and the lower connecting bin 14 are respectively in sliding connection with the inner wall of the desulfurizing tower 2, the upper side and the lower side of the connecting block 16 are respectively fixedly connected with the inner wall of the bottom of the desulfurizing tower 2 through connecting hoses, the opposite surface outer walls of the upper connecting bin 12 and the lower connecting bin 14 are respectively provided with annular bulges, the other ends of the bulges are respectively provided with forty-five degrees of inclination angles, the opposite surface outer walls of the upper connecting bin 12 and the lower connecting bin 14 are respectively fixedly provided with a plurality of spray heads 15, the inner walls of the fixed ring 13 are provided with cavities, the inner wall of the fixed ring 13 is provided with a cavity which is communicated with the cavity on the upper side and the lower side of the connecting block 16, the height of the spray heads 15 on the upper connecting bin 12 and the lower connecting bin 14 is lower than the height of the bulges on the upper connecting bin 12 and the lower connecting bin 14, when desulfurization is carried out, the hoses which are connected on the upper side and the lower side of the connecting block 16 are connected with the vacuum pumps, and the two vacuum pumps are respectively conveyed into the upper connecting bin 12 and the lower connecting bin 14 through the hoses and the vacuum pumps, so that the two vacuum pumps are not started simultaneously, meanwhile, the hoses are provided with allowance with enough length, when the vacuum pumps which are connected with the hoses at the bottom of the connecting block 16 are started, the gases can move downwards through the cavity which is arranged at the bottom of the connecting block 16 to the inner space of the connecting bin 14, finally are sprayed out from the spray heads 15 at the bottom of the lower connecting bin 14, and the whole cleaning device can move upwards under the pushing of the gases, the protrusion at the top of the upper connecting bin 12 scrapes off attachments on the tower wall, and because the height of the spray head 15 is lower than the height of the protrusion, when a vacuum pump connected with a hose at the top of the connecting block 16 is started, the spray head 15 at the top sprays gas to wash the attachments on the protrusion of the upper connecting bin 12, so that the attachments fall into liquid, and meanwhile, when the spray head 15 communicated with the upper connecting bin 12 sprays gas, the whole sorting device is driven to move downwards to scrape the attachments on the tower wall, two circular rings are arranged on the inner wall at the bottom of the desulfurizing tower 2, the cleaning device is positioned between the two circular rings, and the two circular rings can limit the moving range of the cleaning device;
at the same time, when any vacuum pump is started, gas is conveyed to the inner space of the fixed ring 13, the circumference of the fixed ring 13 is hollow as shown in fig. 8, and thus the gas directly impacts the tower wall to further clean attachments on the tower wall.
The bottom of the desulfurizing tower 2 is fixedly provided with a fixed bin 17, the bottom of the fixed bin 17 is fixedly provided with a collecting bin 18, the outer walls of the two electric telescopic rods 19 are fixedly connected with the outer wall of the desulfurizing tower bracket 1, the output ends of the two electric telescopic rods 19 are fixedly connected with the bottom of a connecting rod 20, the top of the connecting rod 20 is fixedly connected with the bottom of a movable plate 21, the outer wall of the movable plate 21 is fixedly provided with a rubber ring 22, the outer wall of the rubber ring 22 is in sliding connection with the inner wall of the fixed bin 17, the outer wall of the connecting rod 20 is respectively in sliding connection with the inner wall of the fixed bin 17 and the inner wall of the collecting bin 18, the diameter of the top of the connecting rod 20 is smaller than the diameter of the bottom, the inner wall of the fixed bin 17 is provided with a plurality of semicircular convex blocks, the circumference of the rubber ring 22 is provided with a plurality of semicircular grooves on the circumference of the rubber ring 22 can be mutually clamped with a plurality of convex blocks on the inner wall of the fixed bin 17, the bottom of the movable plate 21 is fixedly provided with a connecting ring 23, the bottom of the inner wall of the fixed bin 17 is fixedly provided with a mounting ring 24, the outer wall of the connecting ring 23 is provided with a plurality of openings, the outer wall of the mounting ring 24 is provided with an opening, the diameter of the inner ring of the connecting ring 23 is the same as the diameter of the outer ring of the mounting ring 24, the inner ring of the connecting ring and the outer ring of the mounting ring are mutually clamped, in desulfurization work, the electric telescopic rod 19 drives the connecting rod 20 and the movable plate 21 to move upwards, so that the movable plate 21 leaves the fixed bin 17, at the moment, liquid and sediments positioned at the bottom of the tower can surge into the fixed bin 17 due to air pressure, a large amount of sediments enter the fixed bin 17 because the shape of the bottom of the tower is inverted triangle, at the moment, the electric telescopic rod 19 drives the connecting rod 20 and the movable plate 21 to move downwards, so as to squeeze the liquid in the fixed bin 17, so that the liquid and a small part of sediments can flow from the opening arranged on the connecting ring 23 to the groove on the rubber ring 22, finally, the sediment is extruded out of the space between the movable plate 21 and the bottom of the fixed bin 17 from the groove, a large amount of sediment can be blocked by the connecting ring 23, so that the movable plate 21 drives most of sediment to move to the bottom of the fixed bin 17, when the movable plate 21 reaches the bottom of the fixed bin 17, a plurality of grooves on the circumference of the rubber ring 22 are mutually clamped with a plurality of protruding blocks on the inner wall of the fixed bin 17, meanwhile, the connecting ring 23 is mutually clamped with the mounting ring 24, so that a cavity is formed between the movable plate 21 and the fixed bin 17, at the moment, as shown in fig. 6, a connecting port is arranged on one side of the collecting bin 18, and a vacuum pump is connected through the connecting port.
The desulfurizing tower 2 inner wall is connected with cleaning device, and cleaning device includes: go up connecting bin 12, solid fixed ring 13, connect bin 14, connecting block 16 down, cleaning device is used for the debris of adhesion on the clearance desulfurizing tower 2 inner wall, and solid fixed bin 17 all is connected with collection device with collection bin 18 inner wall, and collection device includes: the two electric telescopic rods 19, the connecting rod 20, the movable plate 21 and the rubber ring 22 are used for collecting sediment deposited at the bottom of the inner wall of the desulfurizing tower 2.
Working principle: in desulfurizing MTBE, the gas inlet 3 is connected to an MTBE extraction device, and MTBE gas is introduced into the desulfurizing tower 2. And starting a vacuum pump connected with the first water outlet pipe 8, enabling liquid to contact with MTBE gas through a spray head, mixing the liquid with the MTBE gas, and then enabling the mixed liquid to enter a water tank at the bottom of the desulfurizing tower 2 to react with the liquid in the water tank. MTBE gas containing a small amount of sulfur passes through the gas passing pipe to go to the upper part of the inclined plate 6, a vacuum pump connected with a second water outlet pipe 9 is started, and the MTBE gas is subjected to secondary desulfurization through a spray head. The scattered liquid is discharged out of the desulfurizing tower 2 through a connecting pipe at the bottom of the inclined plate 6, and the MTBE gas subjected to secondary desulfurization continues to flow upwards, and when contacting the demister 10, the S-shaped channel inhibits gas flow, so that mist flowing at high speed is prevented from being formed. Finally, the vacuum pump connected with the third water outlet pipe 11 is started, the water source sprayed by the spray head is cooled, MTBE gas after desulfurization leaves from the opening at the top of the desulfurizing tower, and when desulfurization is carried out, the hoses connected with the upper side and the lower side of the connecting block 16 are connected with the vacuum pump, when the vacuum pump connected with the hose at the bottom of the connecting block 16 is started, the air downwards connects the inner space of the bin 14 through the cavity formed at the bottom of the connecting block 16 to move, finally the spray head 15 at the bottom of the lower connecting bin 14 is sprayed out, under the pushing of the air, the protrusions at the top of the upper connecting bin 12 upwards move to scrape attachments on the wall of the tower, and meanwhile, when the spray head 15 communicated with the upper connecting bin 12 sprays the gas, the whole finishing device downwards moves to scrape attachments on the wall of the tower, and simultaneously, when desulfurization is carried out, the connecting rod 20 and the moving plate 21 upwards move away from the fixed bin 17 through the electric telescopic rod 19, a large amount of sediments enter the fixed bin 17, the connecting rod 20 and the moving plate 21 downwards move through the electric telescopic rod 19, thereby extruding the liquid in the fixed bin 17, the liquid in the fixed bin 21 is extruded by the liquid bin 21, the liquid is pushed by the spray head 15 upwards, the attachments on the fixed bin 17 reach the fixed bin 17, the fixed bin is formed by the fixed bin 17, and the attachments are sucked by the fixed bin 17, and the inner wall is formed by the fixed bin 17, and the large number of attachments, and the attachments are collected by the fixed bin 17.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting.
Claims (6)
1. An apparatus for the extraction and desulfurization of liquefied gas MTBE comprising: a desulfurizing tower bracket (1), a desulfurizing tower (2) and an air inlet (3);
the top of the desulfurizing tower bracket (1) is fixedly connected with the bottom of the desulfurizing tower (2), and the air inlet (3) is formed in the outer wall of one side of the desulfurizing tower (2);
the desulfurization tower is characterized in that a fixed plate (4) is fixedly arranged on the inner wall of the desulfurization tower (2), a plurality of gas passing pipes (5) are fixedly arranged on the inner wall of the fixed plate (4), an inclined plate (6) is fixedly arranged on the outer wall of the top of each gas passing pipe (5), the outer wall of each inclined plate (6) is fixedly connected with the inner wall of the desulfurization tower (2), a plurality of connecting pipes (7) are fixedly arranged on the inner wall of the bottom of the fixed plate (4), and a demister (10) is fixedly arranged on the inner wall of the top of the desulfurization tower (2);
the desulfurization tower (2) is fixedly provided with a first water outlet pipe (8) below the inclined plate (6), the desulfurization tower (2) is fixedly provided with a second water outlet pipe (9) above the inclined plate (6), and the desulfurization tower (2) is fixedly provided with a third water outlet pipe (11) above the demister (10);
a fixed bin (17) is fixedly arranged at the bottom of the desulfurizing tower (2), and a collecting bin (18) is fixedly arranged at the bottom of the fixed bin (17);
the inner wall of the desulfurizing tower (2) is connected with a cleaning device, the cleaning device is used for cleaning sundries attached to the inner wall of the desulfurizing tower (2), the inner walls of the fixed bin (17) and the collecting bin (18) are connected with a collecting device, and the collecting device is used for collecting sediment precipitated at the bottom of the inner wall of the desulfurizing tower (2);
the cleaning device includes: the upper connecting bin (12), the fixed ring (13), the lower connecting bin (14) and the connecting block (16);
the bottom of the upper connecting bin (12) is fixedly connected with the top of the fixed ring (13), the bottom of the fixed ring (13) is fixedly connected with the top of the lower connecting bin (14), and the middle inner walls of the upper connecting bin (12), the fixed ring (13) and the lower connecting bin (14) are fixedly connected with the outer wall of the connecting block (16);
cavities are formed in the upper side and the lower side of the connecting block (16), and the two cavities are respectively communicated with the inner spaces of the upper connecting bin (12) and the lower connecting bin (14);
the outer walls of the upper connecting bin (12), the fixed ring (13) and the lower connecting bin (14) are in sliding connection with the inner wall of the desulfurizing tower (2), and the upper side and the lower side of the connecting block (16) are fixedly connected with the inner wall of the bottom of the desulfurizing tower (2) through connecting hoses;
annular protrusions are arranged on the outer walls of the opposite surfaces of the upper connecting bin (12) and the lower connecting bin (14), an inclined angle of forty-five degrees is arranged at the other end of each protrusion, and a plurality of spray heads (15) are fixedly arranged on the outer walls of the opposite surfaces of the upper connecting bin (12) and the lower connecting bin (14);
the inner wall of the fixed ring (13) is provided with a cavity, and the cavity formed in the inner wall of the fixed ring (13) is communicated with the cavity on the upper side and the lower side of the connecting block (16);
the heights of the upper spray heads (15) of the upper connecting bin (12) and the lower connecting bin (14) are lower than the heights of the upper protrusions of the upper connecting bin (12) and the lower connecting bin (14).
2. The liquefied gas MTBE extractive desulfurization unit of claim 1, wherein the collection device comprises: two electric telescopic rods (19), a connecting rod (20), a moving plate (21) and a rubber ring (22);
two electric telescopic rods (19) outer walls are fixedly connected with the outer walls of the desulfurizing tower support (1), two electric telescopic rods (19) output ends are fixedly connected with the bottoms of connecting rods (20), the tops of the connecting rods (20) are fixedly connected with the bottoms of moving plates (21), rubber rings (22) are fixedly arranged on the outer walls of the moving plates (21), and the outer walls of the rubber rings (22) are slidably connected with the inner walls of the fixed bins (17).
3. The equipment for extracting and desulfurizing the liquefied gas MTBE according to claim 2, wherein the outer wall of the connecting rod (20) is respectively connected with the inner walls of the fixed bin (17) and the collecting bin (18) in a sliding manner, and the diameter of the top of the connecting rod (20) is smaller than that of the bottom.
4. The equipment for extracting and desulfurizing the liquefied gas MTBE according to claim 2, wherein a plurality of semicircular convex blocks are arranged on the inner wall of the fixed bin (17), and a plurality of semicircular grooves are formed in the circumference of the rubber ring (22).
5. The equipment for extracting and desulfurizing the liquefied gas MTBE according to claim 4, wherein a plurality of grooves on the circumference of the rubber ring (22) can be mutually clamped with a plurality of protruding blocks on the inner wall of the fixed bin (17).
6. The liquefied gas MTBE extraction desulfurization apparatus according to claim 2, wherein a connecting ring (23) is fixedly installed at the bottom of the movable plate (21), a mounting ring (24) is fixedly installed at the bottom of the inner wall of the fixed bin (17), a plurality of openings are formed in the outer wall of the connecting ring (23), an opening is formed in the outer wall of the mounting ring (24), and the diameter of the inner ring of the connecting ring (23) is the same as the diameter of the outer ring of the mounting ring (24) and can be mutually clamped.
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