CN115253430A - Pretreatment device in carbon four production process - Google Patents

Pretreatment device in carbon four production process Download PDF

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Publication number
CN115253430A
CN115253430A CN202210893500.7A CN202210893500A CN115253430A CN 115253430 A CN115253430 A CN 115253430A CN 202210893500 A CN202210893500 A CN 202210893500A CN 115253430 A CN115253430 A CN 115253430A
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China
Prior art keywords
front plate
tank body
filter
close
separating disc
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Granted
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CN202210893500.7A
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Chinese (zh)
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CN115253430B (en
Inventor
王春刚
付建峰
孙新生
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Anhui Yifeng Petrochemical Co ltd
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Anhui Yifeng Petrochemical Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/31Self-supporting filtering elements
    • B01D29/33Self-supporting filtering elements arranged for inward flow filtration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/52Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62Regenerating the filter material in the filter
    • B01D29/70Regenerating the filter material in the filter by forces created by movement of the filter element
    • B01D29/74Regenerating the filter material in the filter by forces created by movement of the filter element involving centrifugal force
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/96Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/30Filter housing constructions
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)

Abstract

The invention relates to the technical field of alkylation processes, in particular to a pretreatment device in a carbon four production process, which comprises a water washing tower, a first coalescer, a dehydration dryer, an absorber, a hydrogenation reactor, a raw material lightness-removing tower, a comprehensive absorber and a second coalescer, wherein the first coalescer comprises a horizontal tank body provided with a feed inlet, a discharge outlet and a sewage outlet, a tank cover, a separation disc, a plurality of filter rollers, a plurality of limiting plates, a plurality of connecting hoses and a driving mechanism, a plurality of special-shaped through grooves are formed in the separation disc, and a transmission shaft in transmission connection with the driving mechanism is formed in the center of the separation disc. Firstly, after the separating disc rotates, part of the filter rollers on the separating disc can slide outwards, so that the filter rollers are uniformly distributed on the separating disc and are converted into the filter rollers distributed at the outer ends of the separating disc, a larger centrifugal force is obtained, impurities on the filter rollers are thrown out, the frequency of replacing the filter rollers is greatly reduced, and the working efficiency is higher.

Description

Pretreatment device in carbon four production process
Technical Field
The invention relates to the technical field of alkylation processes, in particular to a pretreatment device in a carbon four production process.
Background
The coalescer is designed primarily for liquid-liquid separation and comprises two filter elements, namely: a coalescing filter element and a separating filter element. For example, in an oil product water removal system, after oil flows into a coalescing separator, the oil first flows through a coalescing filter element, which filters out solid impurities and coalesces tiny water droplets into larger water droplets. Most of the water drops after coalescence can be separated and removed from the oil by gravity and settled in a water collecting tank. Then the oil flows through the separation filter element, and the separation filter element has good oleophylic hydrophobicity, so that the water is further separated, and finally, the clean and anhydrous oil flows out of the coalescence separator.
The alkylation device is a gas processing device which takes olefin and isobutane in liquefied gas as raw materials, and the olefin and the isobutane react under the action of a catalyst to generate alkylate oil. The device process flow comprises several parts of pretreatment, reaction, refrigeration compression, effluent refining and product fractionation and chemical treatment. Wherein, the qualified raw material after pretreatment enters a raw material buffer tank, a gas from the top of the deisobutanizer is usually used for maintaining a certain pressure in the tank, and the pressure in the tank can also be controlled by a pressure split control system. And then the raw material is boosted by a raw material pump, mixed with circulating isobutane from a fractionation system, subjected to heat exchange with a reactor clean effluent in a heat exchanger, cooled to 8-15 ℃, and enters a raw material dehydration coalescer, and free water in the raw material is separated out. The free water content in the raw material is reduced to 50-100ppm (weight), and then the material flow is directly mixed with a circulating refrigerant and enters a reactor.
The raw material is freed of free water and small amounts of other impurities in the coalescer, but conventional coalescers have the following disadvantages: as the amount of material being treated increases, contaminants deposited on the filter element can cause a rise in coalescer pressure differential. When the pressure difference rises to 0.15Mpa, the coalescing filter element is blocked and needs to be replaced, but the installation of the filter element in the traditional coalescer is fixed, the coalescer needs to be opened and the filter element needs to be replaced after the coalescer is shut down during disassembly and assembly, and the operation process is complicated, time-consuming and labor-consuming.
Disclosure of Invention
In view of the above, it is necessary to provide a pretreatment device in a carbon four production process.
In order to solve the problems of the prior art, the invention adopts the technical scheme that:
a pretreatment device in a carbon four production process comprises a water washing tower, a first coalescer, a dehydration dryer, an adsorber, a hydrogenation reactor, a raw material lightness-removing tower, a comprehensive adsorber and a second coalescer, wherein the first coalescer comprises:
the device comprises a horizontal tank body in a cylindrical structure, wherein the top of the horizontal tank body is provided with a feed inlet and a discharge outlet respectively, and the bottom and one end of the horizontal tank body are provided with a drain outlet and a tank cover respectively;
the separation disc is coaxially arranged in the horizontal tank body in a rotating manner and is in dynamic sealing connection with the horizontal tank body, and the separation disc is positioned between the feed port and the discharge port and is close to the discharge port;
the filter roll group comprises a plurality of filter rolls arranged on one side, close to the feed inlet, of a separating disc, wherein the plurality of filter rolls are fixedly connected to the outer end of the separating disc in a sealing mode and are uniformly distributed along the circumferential direction, the rest plurality of filter rolls are divided into a plurality of groups of roll groups which are uniformly distributed along the circumferential direction, a plurality of special-shaped through grooves which correspond to the plurality of groups of roll groups one by one are formed in the separating disc, each group of roll group comprises two filter rolls which can be arranged in the corresponding special-shaped through grooves in a sliding mode, one ends, close to the separating disc, of the two corresponding filter rolls are hinged to a limiting plate, and the limiting plate is elastically connected with the separating disc;
the connecting hoses are in one-to-one correspondence with the filtering rollers, one end of each filtering roller close to the separation disc is fixedly connected with one end of the corresponding connecting hose in a sealing manner, the other end of each connecting hose is fixedly connected with one end of the separation disc close to the discharge port in a sealing manner, and the connecting hoses connected with the filtering rollers in the groups of roller sets are all in a non-stretched state;
the driving mechanism is arranged at one end of the horizontal tank body close to the discharge port and is used for driving the separation disc to rotate, and a transmission shaft in transmission connection with the driving mechanism is formed in the center of the separation disc.
Preferably, the separation disc comprises a supporting front plate, a connecting column sleeve and a supporting rear plate which are sequentially arranged along the axial direction of the horizontal tank body and from the feed inlet to the discharge outlet, the supporting front plate and the supporting rear plate are both of a circular plate structure, the connecting column sleeve is of a hollow cylindrical structure, annular supporting plates are formed at two ends of the connecting column sleeve, the supporting front plate and the supporting rear plate are coaxially and fixedly connected with the corresponding annular supporting plates respectively, three caulking grooves which are distributed at intervals along the axial direction are further formed in the outer cylindrical wall of the connecting column sleeve, each caulking groove is internally provided with a sealing ring which is used for being in dynamic sealing connection with the inner wall of the horizontal tank body in a sleeved mode, the outer end of each sealing ring is provided with a slope portion which is used for elastically compressing the inner wall of the horizontal tank body in a formed mode, two roller bearings which are distributed at intervals along the axial direction of the horizontal tank body and are used for being in shaft connection with the connecting column sleeve are arranged on the supporting front plate, a plurality of the filtering rollers and special-shaped sliding grooves are arranged on the supporting front plate, one end, of each connecting hose, far away from the corresponding filtering roller, is fixedly connected with the supporting rear plate in a sealed mode, and each limiting plate is elastically connected with the supporting front plate.
Preferably, the quantity of filter roll is twelve and the quantity of roller set is four groups, and every filter roll is close to the equal coaxial seal of one end of supporting the front bezel and has linked firmly the discharging pipe, and every coupling hose's corresponding end all links firmly with corresponding discharging pipe seal, set up four mounting holes along circumferencial direction evenly distributed and be close to its outer end on the support front bezel, the discharging pipe seal that corresponds four filter rolls links firmly in four mounting holes, four dysmorphism leads to the groove along supporting front bezel circumferencial direction evenly distributed on supporting the plectane, every dysmorphism spout all includes along supporting the radial straight flute of front bezel and by the chute that the straight flute middle part outwards extends out, and two discharging pipes in every group roller set slide respectively and set up in corresponding straight flute and corresponding chute, the internal one end that is close to the feed inlet of horizontal tank still inlays and is equipped with the support ring that is used for supporting a plurality of filter roll and keeps away from supporting front bezel one end.
Preferably, two connecting round holes are formed in the limiting plate, two corresponding discharging pipes are inserted into the corresponding connecting round holes respectively and are in running fit with the corresponding connecting round holes, a first cross shaft is further formed in the middle of one side, far away from the supporting front plate, of the limiting plate, four second cross shafts and four tension springs which are in one-to-one correspondence to the four first cross shafts are further arranged on one side, close to the axis of the supporting front plate, each second cross shaft is located on one side, close to the axis of the supporting front plate, of the corresponding first cross shaft, the drag hooks at two ends of each tension spring are hooked on the corresponding first cross shafts and the corresponding second cross shafts respectively, and first nuts and second nuts used for limiting corresponding ends of the tension springs are further arranged on the first cross shafts and the second cross shafts respectively in a rotating mode.
Preferably, a plurality of screw holes which correspond to the connecting hoses one by one are formed in the supporting rear plate, a connecting piece is hermetically and spirally arranged in each screw hole, and the corresponding end of each connecting piece is hermetically and fixedly connected with the corresponding connecting hose.
Preferably, the transmission shaft is formed in the middle of one end, close to the supporting rear plate, of the supporting front plate, a connecting shaft sleeve is further coaxially and fixedly connected between the supporting front plate and the supporting rear plate, and the connecting shaft sleeve is coaxially sleeved on the transmission shaft.
Preferably, the driving mechanism comprises a motor, the motor is fixedly arranged at one end of the horizontal tank body far away from the tank cover, and an output shaft of the motor extends into the horizontal tank body and is coaxially and fixedly connected with the transmission shaft.
Compared with the prior art, the invention has the beneficial effects that:
firstly, after the separating disc rotates, part of the filter rollers on the separating disc can slide outwards, so that the filter rollers are uniformly distributed on the separating disc and are converted into the filter rollers distributed at the outer ends of the separating disc, a larger centrifugal force is obtained, impurities on the filter rollers are thrown out, the frequency of replacing the filter rollers is greatly reduced, and the working efficiency is higher;
secondly, the inclined plane parts on the three sealing rings outside the connecting column sleeve can be always attached to the inner wall of the horizontal tank body, so that the filtering cavity and the discharging cavity are always sealed.
Drawings
FIG. 1 is a schematic process flow diagram of the carbon four pretreatment process of the example.
Fig. 2 is a first perspective view of the first coalescer according to the embodiment.
Fig. 3 is a schematic perspective view of a first coalescer according to an embodiment.
Fig. 4 is a partial structural plan view of the first coalescer according to the embodiment.
Fig. 5 isbase:Sub>A cross-sectional view taken along linebase:Sub>A-base:Sub>A of fig. 4.
Fig. 6 is an enlarged view of a portion of the structure at B in fig. 5.
FIG. 7 is an exploded perspective view of the horizontal tank, the separating tray and several filter rollers of the embodiment.
Fig. 8 is an exploded perspective view of the divider disk, filter rolls and three sealing rings of the embodiment.
Fig. 9 is a schematic perspective view of the supporting front plate, the roller group, and the supporting rear plate of the embodiment.
Figure 10 is a first exploded perspective view of the support front plate, roller set and support back plate of the embodiment.
Figure 11 is a second exploded perspective view of the support front plate, roller set and support back plate of the embodiment.
Fig. 12 is an enlarged view of a portion of the structure at C in fig. 11.
The reference numbers in the figures are:
1. washing the tower with water; 2. a first coalescer; 3. a dehydration dryer; 4. a desulfurization adsorber; 5. an arsenic removal adsorber; 6. a hydrogenation reactor; 7. a raw material lightness-removing tower; 8. a comprehensive adsorber; 9. a second coalescer; 10. a horizontal tank body; 11. a feed inlet; 12. a discharge port; 13. a sewage draining outlet; 14. a can cover; 15. a divider disk; 16. a filter roll; 17. a special-shaped through groove; 18. a straight groove; 19. a chute; 20. a limiting plate; 21. a connecting hose; 22. a drive shaft; 23. a filter chamber; 24. a discharge cavity; 25. supporting the front plate; 26. connecting the column sleeve; 27. supporting the rear plate; 28. an annular support plate; 29. a seal ring; 30. an inclined plane part; 31. a roller bearing; 32. a discharge pipe; 33. a support ring; 34. a first lateral axis; 35. a second lateral axis; 36. a tension spring; 37. a first nut; 38. a second nut; 39. a connecting member; 40. a connecting shaft sleeve; 41. an electric motor.
Detailed Description
For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.
Referring to fig. 1 to 12, a pretreatment device in a carbon four production process includes a water washing column 1, a first coalescer 2, a dehydration dryer 3, an adsorber, a hydrogenation reactor 6, a raw material lightness-removing column 7, an integrated adsorber 8, and a second coalescer 9, wherein the first coalescer 2 includes:
the top of a horizontal tank body 10 which is in a cylindrical structure is respectively provided with a feed inlet 11 and a discharge outlet 12, and the bottom and one end of the horizontal tank body 10 are respectively provided with a sewage outlet 13 and a tank cover 14;
the separation disc 15 is coaxially arranged in the horizontal tank body 10 in a rotating mode, the separation disc 15 is in dynamic sealing connection with the horizontal tank body 10, and the separation disc 15 is located between the feeding hole 11 and the discharging hole 12 and is close to the discharging hole 12;
the filter roll sets comprise a plurality of filter rolls 16 arranged on one side, close to the feed inlet 11, of a separating disc 15, wherein the filter rolls 16 are fixedly connected to the outer end of the separating disc 15 in a sealing mode and are uniformly distributed along the circumferential direction, the rest filter rolls 16 are divided into a plurality of groups of roll sets uniformly distributed along the circumferential direction, a plurality of special-shaped through grooves 17 corresponding to the roll sets in the groups one by one are formed in the separating disc 15, each group of roll sets comprises two filter rolls 16 capable of being arranged in the corresponding special-shaped through grooves 17 in a sliding mode, one ends, close to the separating disc 15, of the two corresponding filter rolls 16 are hinged with limiting plates 20, and the limiting plates 20 are elastically connected with the separating disc 15;
the connecting hoses 21 are in one-to-one correspondence with the filtering rollers 16, one end of each filtering roller 16 close to the separating disc 15 is fixedly connected with one end of the corresponding connecting hose 21 in a sealing manner, the other end of each connecting hose 21 is fixedly connected with one end of the separating disc 15 close to the discharge hole 12 in a sealing manner, and the connecting hoses 21 connected with the filtering rollers 16 in the roller sets are in a non-stretched state;
the driving mechanism is arranged at one end of the horizontal tank body 10 close to the discharge hole 12 and is used for driving the separating disc 15 to rotate, and a transmission shaft 22 in transmission connection with the driving mechanism is formed in the center of the separating disc 15.
Referring to fig. 1, a first coalescer 2 is connected to the outlet of the water scrubber 1; the dehydration dryer 3 is connected with the outlet of the first coalescer 2; the adsorber comprises a desulfurization adsorber 4 connected with the outlet of the dehydration dryer 3 and an arsenic removal adsorber 5 connected with the outlet of the desulfurization adsorber 4; the hydrogenation reactor 6 is connected with the outlet of the dearsenification adsorber 5; the raw material lightness-removing tower 7 is connected with the outlet of the hydrogenation reactor 6; the comprehensive adsorber 8 is connected with the outlet of the raw material lightness-removing tower 7; the second coalescer 9 is connected with the outlet of the comprehensive adsorber 8; the comprehensive adsorber 8 is provided with a dechlorinating agent (not shown in the figure), a denitriding agent layer (not shown in the figure), a first deoxidizing agent layer (not shown in the figure) and a second deoxidizing agent layer (not shown in the figure); the water washing tower 1 is a plate type water washing tower, and the number of tower plates (not shown in the figure) of the water washing tower 1 is 30-80; the coalescer is a vertical coalescer; the filler of the dehydration dryer 3 comprises ceramic balls (not shown in the figure) and a molecular sieve (not shown in the figure); the filler of the dewatering dryer 3 is a multilayer filler (not shown in the figure); the filler of the hydrogenation reactor 6 comprises ceramic balls (not shown in the figure), an isomerization catalyst (not shown in the figure) and a protective agent (not shown in the figure); the outlet of the adsorber is also connected with the inlet of the comprehensive adsorber 8; the outlet of the comprehensive adsorber 8 is also connected with the inlet of the hydrogenation reactor 6;
the pretreatment system for the raw material C four comprises the following steps:
the raw material carbon four-way washing tower 1 (methanol washing tower) is in vapor-liquid contact with washing water, and methanol in the raw material is dissolved in the washing water, so that the methanol in the raw material is removed (less than 50 ppm);
because the raw material is in vapor-liquid contact with water, the raw material from the water washing tower 1 has a certain amount of water, and enters the first coalescer 2 for dehydration (less than 10 ppm), and then enters the dehydration dryer 3 for further dehydration and drying, so that the water content is guaranteed to be no more than 1ppm;
the dehydrated raw material enters a desulfurization adsorber 4 with a desulfurizing agent, and sulfide in the raw material is adsorbed by the desulfurizing agent (less than 1 ppm);
the desulfurized raw material enters a dearsenization adsorber 5 with dearsenization agent again, and dearsenization is carried out through the dearsenization agent (less than 1 ppb);
impurities which affect the hydrogenation catalyst, such as water, sulfur, arsenic and the like, of the treated raw material are removed, the requirement of the hydrogenation catalyst on the impurities of the raw material is met, the raw material is pressurized and then enters a hydrogenation reactor 6, diene (< 50 ppm) is removed through hydrogenation under the pressure of 1.5mpa, and olefin is reserved;
the hydrogenated product with partial light hydrocarbon by-product enters a light hydrocarbon removing tower to remove the light hydrocarbon by-product and also remove most of the oxide;
the raw materials after removing light hydrocarbon enter a comprehensive adsorption tower filled with deoxidizer, dechlorinating agent and denitrifier again to adsorb and remove oxide, chloride and nitride one by one, the comprehensive adsorber 8 is operated by double towers, the adsorption is switched mutually (1 adsorption, 1 regeneration for standby), the removed raw materials enter a coalescence dehydrator again to remove water (less than 10 ppm) generated by hydrogenation reaction, and finally the qualified raw materials enter an alkylation reaction system (not shown in the figure) to react.
The separating disc 15 divides the interior of the horizontal tank body 10 into a filter cavity 23 (one side of the separating disc 15 close to the feed inlet 11) and a discharge cavity 24 (one side of the separating disc 15 close to the discharge outlet 12), the tank cover 14 is hinged to one end of the horizontal tank body 10 far away from the discharge outlet 12, and the driving mechanism is arranged at one end of the horizontal tank body 10 close to the discharge outlet 12.
The separating disc 15 comprises a supporting front plate 25, a connecting column sleeve 26 and a supporting rear plate 27 which are sequentially arranged along the axial direction of the horizontal tank body 10 and from the feed inlet 11 to the direction of the discharge outlet 12, the supporting front plate 25 and the supporting rear plate 27 are both in a circular plate structure, the connecting column sleeve 26 is in a hollow cylindrical structure, two ends of the connecting column sleeve are respectively formed with an annular supporting plate 28, the supporting front plate 25 and the supporting rear plate 27 are coaxially and fixedly connected with the corresponding annular supporting plates 28 respectively, three caulking grooves distributed along the axial direction at intervals are further formed in the outer cylindrical wall of the connecting column sleeve 26, each caulking groove is internally provided with a sealing ring 29 which is used for being in dynamic sealing connection with the inner wall of the horizontal tank body 10, the outer end of each sealing ring 29 is provided with an inclined plane part 30 which is formed to elastically compress the inner wall of the horizontal tank body 10, two special-shaped roller bearings 31 which are distributed along the axial direction at intervals and are used for being in shaft connection with the connecting column sleeve 26 are arranged in the horizontal tank body 10, a plurality of the filtering rollers 16 and sliding grooves are arranged on the supporting front plate 25, and each connecting hose 21 is kept away from one end of the corresponding filtering roller 16 and fixedly connected with the supporting rear plate 27, and each limiting plate 20 is connected with the elastic plate 25.
Because the three sealing rings 29 are arranged on the outer wall of the connecting column sleeve 26 at intervals, each sealing ring 29 is further formed with the inclined plane part 30 shown in fig. 6, when raw materials in the filter cavity 23 enter the discharging cavity 24 from the outer side of the connecting column sleeve 26, the raw materials can extrude the inclined plane part 30, but the inclined plane part 30 is elastically attached to the inner wall of the horizontal tank body 10, the inclined plane part 30 can be continuously pressed to the inner wall of the horizontal tank body 10 after the raw materials extrude the inclined plane part 30, so that the raw materials can be intercepted in the filter cavity 23 by the inclined plane part 30, the three sealing rings 29 ensure that after a certain sealing ring 29 close to the filter cavity 23 is broken in an accidental situation, the sealing ring 29 close to one side of the discharging cavity 24 can still continue to act, so that the sealing between the filter cavity 23 and the discharging cavity 24 at the outer wall of the connecting column sleeve 26 is ensured, each annular supporting plate 28 is provided with a plurality of uniformly distributed threaded holes along the circumferential direction, each threaded hole is internally screwed with a first bolt (not shown in the figure), the supporting front plate 25 and the supporting plate 27 are respectively connected with a plurality of corresponding annular supporting plates 28 through a plurality of first bolts, and two sealing rings (two sealing support plates are fixedly connected with the corresponding annular supporting plates) in a sealing manner, and connected with the first bolt sleeve, and the first supporting plate 28, and the annular supporting plate (two sealing rings (for realizing the sealing connection of the sealing rings such as shown in a sealing connection).
The number of the filter rollers 16 is twelve, the number of the roller sets is four, one end of each filter roller 16 close to the support front plate 25 is coaxially and fixedly connected with a discharge pipe 32 in a sealing way, the corresponding end of each connecting hose 21 is fixedly connected with the corresponding discharge pipe 32 in a sealing way, four mounting holes which are uniformly distributed along the circumferential direction and are close to the outer end of the support front plate 25 are formed in the support front plate 25, the discharge pipes 32 corresponding to the four filter rollers 16 are fixedly connected in the four mounting holes in a sealing way, four dysmorphism logical groove 17 is along supporting the 25 circumferencial direction evenly distributed of front bezel on supporting the plectane, every the dysmorphism spout all includes along supporting the radial straight flute 18 of front bezel 25 and by the outside chute 19 that extends out in the middle part of straight flute 18, two discharging pipes 32 in every group roller set slide respectively and set up in corresponding straight flute 18 and corresponding chute 19, the one end that is close to feed inlet 11 in the horizontal tank body 10 still inlays and is equipped with the support ring 33 that is used for supporting a plurality of filter roll 16 and keeps away from supporting front bezel 25 one end.
A sealing ring (not shown) for sealing is arranged between each discharging pipe 32 and the connecting hose 21, the special-shaped through groove 17 is of a structure which is nearly in a Y shape and is shown in fig. 9, when the separating disc 15 is not rotated, one of the two filter rollers 16 in each roller set is positioned at one end of the corresponding straight groove 18 close to the axis of the separating disc 15, the other one is positioned at one end of the inclined groove 19 close to the straight groove 18, the twelve filter rollers 16 in the state are uniformly distributed on the separating disc 15 in a state shown in fig. 8, after raw materials enter the filter cavity 23 from the feeding hole 11, the plurality of uniformly distributed filter rollers 16 can be fully contacted with the raw materials, and the support ring 33 is used for supporting the corresponding ends of the plurality of filter rollers 16 after the support front plate 25 rotates.
Two connecting round holes are formed in the limiting plate 20, two corresponding discharge pipes 32 are respectively inserted into the corresponding connecting round holes and are in running fit with the corresponding connecting round holes, a first transverse shaft 34 is further formed in the middle of one side, away from the supporting front plate 25, of the limiting plate 20, four second transverse shafts 35 and four tension springs 36 are further arranged on one side, close to the supporting rear plate 27, of the supporting front plate 25, the four second transverse shafts 35 and the four tension springs 36 are in one-to-one correspondence with the four first transverse shafts 34, each second transverse shaft 35 is located on one side, close to the axis of the supporting front plate 25, of the corresponding first transverse shaft 34, the tension hooks at two ends of each tension spring 36 are respectively hooked on the corresponding first transverse shaft 34 and the corresponding second transverse shaft 35, and first nuts 37 and second nuts 38 used for limiting corresponding ends of the tension springs 36 are further arranged on the first transverse shaft 34 and the second transverse shaft 35 in a rotating mode.
When the separating disc 15 is not rotated, due to the pulling force of the tension spring 36, the limiting plate 20 is pulled towards the inner side of the supporting front plate 25, so that one discharge pipe 32 in the corresponding roll set is located at one end of the corresponding straight groove 18 close to the axis of the separating disc 15, the other discharge pipe 32 is located at one end of the inclined groove 19 close to the straight groove 18, after the separating disc 15 rotates, the corresponding two filter rolls 16 move towards the outer side of the supporting front plate 25 under the action of centrifugal force, one discharge pipe 32 gradually moves to the outermost end of the inclined groove 19, the other discharge pipe 32 moves to the outer end of the straight groove 18, but is limited by the limiting action of the limiting plate 20, the limit position of movement of the other discharge pipe 32 is limited, that when the other discharge pipe 32 moves to the outermost end of the inclined groove 19 and the other discharge pipe 32 slides to the outermost end along the straight groove 18, the discharge pipe 32 located in the straight groove 18 is closer to the axis of the supporting front plate 25 than the discharge pipe 32 located in the inclined groove 19 (at this time, because the discharge pipe 32 located in the inclined groove 19 is located at the outermost end and the discharge pipe 32 located in the straight groove 18 and the straight groove 18, so that the discharge pipe 32 can not move towards the axis of the supporting front plate 25, and the filtering roll set can not move back to the filtering centre of the supporting front plate 20, so that the filtering roll set can move back to the filtering centre of the filtering roll set 20 and the filtering centre of the separating disc 23, that the separating disc 23 can move, and the separating disc 23 can move gradually move towards the filtering roll set, i.e. when the separating disc 23, the separating disc 23 can not move.
The supporting rear plate 27 is provided with a plurality of screw holes which are in one-to-one correspondence to the connecting hoses 21, each screw hole is internally provided with a connecting piece 39 in a sealing and rotating manner, and the corresponding end of each connecting piece 39 is fixedly connected with the corresponding connecting hose 21 in a sealing manner.
The two ends of each connecting piece 39 are respectively in a cylindrical tube structure and a threaded tube structure, the middle part of each connecting piece 39 is in a hexagonal prism plate-shaped structure, and sealing rings (not shown in the figure) for sealing are arranged between the connecting hose 21 and the cylindrical tube structure of the corresponding connecting piece 39 and between the connecting piece 39 and the supporting back plate 27, so that the raw materials are prevented from leaking in the process of entering the discharging cavity 24 from the filter cavity 23 through the filter roller 16 and the connecting hose 21.
The transmission shaft 22 is formed in the middle of one end, close to the supporting rear plate 27, of the supporting front plate 25, a connecting shaft sleeve 40 is coaxially fixedly connected between the supporting front plate 25 and the supporting rear plate 27, and the connecting shaft sleeve 40 is coaxially sleeved on the transmission shaft 22.
The connecting shaft sleeve 40 and the supporting rear plate 27 are coaxially and fixedly connected through a plurality of second bolts (not shown in the figure) which are uniformly distributed along the circumferential direction, a sealing ring (not shown in the figure) for sealing is sleeved on each of the plurality of second bolts and between the connecting shaft sleeve 40 and the supporting rear plate 27, a sealing ring (not shown in the figure) for keeping the sealing between the connecting shaft sleeve 40 and the transmission shaft 22 is further embedded at one end, close to the supporting front plate 25, in the connecting shaft sleeve 40, the sealing rings (not shown in the figure) are combined, the sealing inside of the whole separating disc 15 and the sealing between the separating disc 15 and the horizontal tank body 10 are realized, and the raw materials can only enter the discharging cavity 24 through a plurality of filter rollers 16, connecting hoses 21 and connecting pieces 39 after entering the filter cavity 23.
The driving mechanism comprises a motor 41, the motor 41 is fixedly arranged at one end of the horizontal tank body 10 far away from the tank cover 14, and an output shaft of the motor 41 extends into the horizontal tank body 10 and is coaxially and fixedly connected with the transmission shaft 22.
The motor 41 can rotate the supporting front plate 25 via the transmission shaft 22, and thus the entire separating disc 15.
The working principle is as follows: when raw materials are separated, a sewage discharge port 13 of a horizontal tank body 10 is in a closed state, a motor 41 does not work, the raw materials enter the horizontal tank body 10 from a feed port 11 and fill a filter cavity 23, the raw materials in the filter cavity 23 gradually gather and then gradually enter a plurality of filter rollers 16, and are discharged into a discharge cavity 24 through a plurality of filter rollers 16 by a connecting hose 21 and a connecting piece 39, in the process that the raw materials enter the filter rollers 16, part of impurities are blocked by the filter rollers 16 and flow down along the outer wall of the filter rollers 16, part of impurities are adsorbed in the filter rollers 16, water is also adsorbed by the filter rollers 16, and along with the increase of the water, the water is gradually gathered and settled to the bottom of the filter cavity 23, the filtered raw materials enter the connecting hose 21 along the inner part of the filter rollers 16, finally enter the discharge cavity 24 by the connecting piece 39 and then flow out of a discharge port 12 and are collected, and after all the raw materials are separated and collected, opening a sewage discharge outlet 13 to discharge impurities accumulated at the bottom of a filter cavity 23, wherein a certain amount of raw materials are separated by the horizontal tank body 10, a plurality of filter rollers 16 need to be decontaminated, the raw materials in the horizontal tank body 10 need to be completely discharged before decontamination, waste of the raw materials is prevented, then a motor 41 is started, a transmission shaft 22 is driven to rotate through the motor 41, the whole separation disc 15 is coaxially and fixedly connected on the transmission shaft 22 and is in shaft connection with the inner wall of the horizontal tank body 10, the whole separation disc 15 can rotate along with the rotation of the transmission shaft 22, after the separation disc 15 rotates, four filter rollers 16 connected with four mounting holes on a support front plate 25 rotate along with the separation disc 15, four sets of roller sets arranged in special-shaped through grooves 15 move relative to the separation disc 15 while rotating along with the separation disc 15, and as two filter rollers 16 in each set of roller sets are respectively arranged in a straight groove 18 and a chute 19 of the special-shaped through groove 17 in a sliding manner, and a limit plate 20 is hinged between the two filter rollers 16, and a corresponding tension spring 36 is arranged between a first transverse shaft 34 at the middle part of the limit plate 20 and a corresponding second transverse shaft 35 on the support front plate 25, so that the limit plate 20 moves towards the axial direction of the support front plate 25 under the action of four tension springs 36 when the separating disc 15 is not rotated, so that the two corresponding filter rollers 16 are respectively positioned at one end of the straight groove 18 and the inclined groove 19 of the corresponding special-shaped through groove 17, which are close to the axial direction of the support front plate 25 (refer to the state shown in fig. 7 and 9), and after the separating disc 15 starts to rotate, due to the centrifugal force, the two filter rollers 16 in each special-shaped through groove 17 slide towards the outer end of the support front plate 25 along the straight groove 18 and the inclined groove 19 of the corresponding special-shaped through groove 17 until the outer end of the special-shaped through groove 17 cannot move continuously, and then the twelve filter rollers 16 are positioned at the outer end of the support front plate 25, in the process, because the filter roll 16 moves outwards, the relative distance between the corresponding end of the filter roll 16 and the connecting part of the supporting rear plate 27 is increased, the connecting hose 21 which is not stretched is properly elongated and tends to be stretched gradually, and because the supporting front plate 25 rotates continuously and the outer end of the supporting front plate 25 is closer to the same rotating speed, the centrifugal force applied to the corresponding filter roll 16 is larger, the impurities remained on the filter roll 16 can be thrown out, after the separating disc 15 rotates for a proper time, the impurities on a plurality of filter rolls 16 are thrown out and gathered at the bottom of the filter cavity 23, then the motor 41 can be stopped and the sewage draining outlet 13 is opened, the separating disc 15 stops gradually, the filter rolls 16 in a plurality of groups of roll sets return to the position closest to the axis of the supporting front plate 25 under the action of a plurality of tension springs 36, and the plurality of filter rolls 16 are distributed more uniformly relative to the supporting front plate 25 at the moment, the raw material can enter a plurality of filter rollers 16 more quickly and thoroughly after entering the filter cavity 23.
The above examples only show one or more embodiments of the present invention, and the description is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (7)

1. The pretreatment device in the carbon four-production process is characterized by comprising a water washing tower (1), a first coalescer (2), a dehydration dryer (3), an adsorber, a hydrogenation reactor (6), a raw material lightness-removing tower (7), a comprehensive adsorber (8) and a second coalescer (9), wherein the first coalescer (2) comprises:
the device comprises a horizontal tank body (10) in a cylindrical structure, wherein the top of the horizontal tank body is provided with a feed inlet (11) and a discharge outlet (12), and the bottom and one end of the horizontal tank body (10) are respectively provided with a sewage outlet (13) and a tank cover (14);
the separation disc (15) is coaxially arranged in the horizontal tank body (10) in a rotating mode, the separation disc (15) is in movable sealing connection with the horizontal tank body (10), and the separation disc (15) is located between the feeding hole (11) and the discharging hole (12) and is close to the discharging hole (12);
the filter roll sets comprise a plurality of filter rolls (16) arranged on one side, close to the feed inlet (11), of a separating disc (15), wherein the filter rolls (16) are fixedly connected to the outer end of the separating disc (15) in a sealing mode and are uniformly distributed along the circumferential direction, the rest filter rolls (16) are divided into a plurality of groups of roll sets uniformly distributed along the circumferential direction, a plurality of special-shaped through grooves (17) corresponding to the roll sets of the groups one by one are formed in the separating disc (15), each group of roll sets comprises two filter rolls (16) capable of sliding and arranged in the corresponding special-shaped through grooves (17), one ends, close to the separating disc (15), of the two corresponding filter rolls (16) are hinged with limiting plates (20), and the limiting plates (20) are elastically connected with the separating disc (15);
the connecting hoses (21) correspond to the filtering rollers (16) one by one, one end of each filtering roller (16) close to the separating disc (15) is fixedly connected with one end of the corresponding connecting hose (21) in a sealing manner, the other end of each connecting hose (21) is fixedly connected with one end of the separating disc (15) close to the discharge port (12) in a sealing manner, and the connecting hoses (21) connected with the filtering rollers (16) in the roller sets are all in a non-stretched state;
the driving mechanism is arranged at one end, close to the discharge hole (12), of the horizontal tank body (10) and used for driving the separating disc (15) to rotate, and a transmission shaft (22) in transmission connection with the driving mechanism is formed in the center of the separating disc (15).
2. The pretreatment device in the carbon four-production process according to claim 1, wherein the separation disc (15) comprises a support front plate (25), a connection column sleeve (26) and a support rear plate (27) which are sequentially arranged along the axial direction of the horizontal tank body (10) from the feed inlet (11) to the discharge outlet (12), the support front plate (25) and the support rear plate (27) are both in a circular plate-shaped structure, the connection column sleeve (26) is in a hollow cylindrical structure, two ends of the connection column sleeve are both formed with annular support plates (28), the support front plate (25) and the support rear plate (27) are respectively and coaxially and fixedly connected with corresponding annular support plates (28), three caulking grooves which are axially distributed at intervals are further formed on the outer cylindrical wall of the connection column sleeve (26), each caulking groove is internally sleeved with a sealing ring (29) which is used for being in dynamic sealing connection with the inner wall of the horizontal tank body (10), each sealing ring (29) is formed with an outer end portion (30) which is elastically pressed against the inner wall of the horizontal tank body (10) in a manner, two inclined surface sleeves which are axially distributed at intervals are used for being connected with the inner wall of the horizontal tank body (10), and a plurality of filtering rollers (16) are respectively arranged on the support front plate and a plurality of the supporting rollers (16) which are fixedly connected with the supporting rollers (16), each limiting plate (20) is elastically connected with the supporting front plate (25).
3. The pretreatment device in the carbon four-production process according to claim 2, wherein the number of the filter rolls (16) is twelve, the number of the roll sets is four, each filter roll (16) is provided with a discharge pipe (32) at one end close to the support front plate (25) in a coaxial and sealed manner, the corresponding end of each connecting hose (21) is fixedly connected with the corresponding discharge pipe (32) in a sealed manner, the support front plate (25) is provided with four mounting holes which are uniformly distributed along the circumferential direction and are close to the outer end of the support front plate, the discharge pipes (32) corresponding to the four filter rolls (16) are fixedly connected in the four mounting holes in a sealed manner, the four special-shaped through grooves (17) are uniformly distributed on the support front plate (25) along the circumferential direction, each special-shaped sliding groove comprises a straight groove (18) along the radial direction of the support front plate (25) and a chute (19) extending outwards from the middle part of the straight groove (18), two discharge pipes (32) in each roll set are respectively arranged in the corresponding straight groove (18) and the corresponding chute (19) in a sliding manner, one end of each roll set is provided with a plurality of support front support rings (16) close to the support front plate (11) for supporting the end of the horizontal support front plate (25).
4. The pretreatment device in the carbon four production process according to claim 3, wherein two connecting circular holes are formed in the limiting plate (20), two corresponding discharge pipes (32) are respectively inserted into the corresponding connecting circular holes and are in running fit with the corresponding connecting circular holes, a first transverse shaft (34) is further formed in the middle of one side, away from the supporting front plate (25), of the limiting plate (20), four second transverse shafts (35) and four tension springs (36) which are in one-to-one correspondence with the four first transverse shafts (34) are further arranged on one side, close to the axis of the supporting front plate (25), of the supporting front plate (25), the tension hooks at two ends of each tension spring (36) are respectively hooked on the corresponding first transverse shaft (34) and the corresponding second transverse shaft (35), and first nuts (37) and second nuts (38) for corresponding ends of the tension springs (36) are further respectively and rotatably arranged on the first transverse shaft (34) and the second transverse shaft (35).
5. The pretreatment device in the carbon four production process according to claim 2, wherein a plurality of screw holes corresponding to the plurality of connection hoses (21) one by one are formed in the support back plate (27), a connecting piece (39) is hermetically and spirally arranged in each screw hole, and the corresponding end of each connecting piece (39) is hermetically and fixedly connected with the corresponding connection hose (21).
6. The pretreatment device in the carbon four production process according to claim 2, wherein the transmission shaft (22) is formed in the middle of one end of the support front plate (25) close to the support rear plate (27), a connection shaft sleeve (40) is coaxially and fixedly connected between the support front plate (25) and the support rear plate (27), and the connection shaft sleeve (40) is coaxially sleeved on the transmission shaft (22).
7. The pretreatment device in the carbon four production process according to claim 1, wherein the driving mechanism comprises a motor (41), the motor (41) is fixedly arranged at one end of the horizontal tank body (10) far away from the tank cover (14), and an output shaft of the motor (41) extends into the horizontal tank body (10) and is coaxially and fixedly connected with the transmission shaft (22).
CN202210893500.7A 2022-07-27 2022-07-27 Pretreatment device in carbon four production process Active CN115253430B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54122467A (en) * 1978-03-16 1979-09-22 Yamaha Motor Co Ltd Filtering device
CN203002075U (en) * 2012-12-28 2013-06-19 上海同臣环保有限公司 Circular filter with self-suction type mud suction function
US20140299527A1 (en) * 2011-10-13 2014-10-09 Soo-Tae LEE High-efficiency candle-type device for filtering ballast water having high-density filter structure
CN208436470U (en) * 2018-05-23 2019-01-29 杭州佳航实业有限公司 A kind of filter separator being centrifuged dirt collection
CN110407660A (en) * 2018-04-28 2019-11-05 东营市海科瑞林化工有限公司 A kind of pretreating process and pretreatment system of the material carbon four for solid acid alkylation processes
CN211536854U (en) * 2019-10-22 2020-09-22 上海齐宇机电设备有限公司 Filtering and separating device
CN215692370U (en) * 2021-06-19 2022-02-01 杭州芯承科技有限公司 Horizontal coalescence filter

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54122467A (en) * 1978-03-16 1979-09-22 Yamaha Motor Co Ltd Filtering device
US20140299527A1 (en) * 2011-10-13 2014-10-09 Soo-Tae LEE High-efficiency candle-type device for filtering ballast water having high-density filter structure
CN203002075U (en) * 2012-12-28 2013-06-19 上海同臣环保有限公司 Circular filter with self-suction type mud suction function
CN110407660A (en) * 2018-04-28 2019-11-05 东营市海科瑞林化工有限公司 A kind of pretreating process and pretreatment system of the material carbon four for solid acid alkylation processes
CN208436470U (en) * 2018-05-23 2019-01-29 杭州佳航实业有限公司 A kind of filter separator being centrifuged dirt collection
CN211536854U (en) * 2019-10-22 2020-09-22 上海齐宇机电设备有限公司 Filtering and separating device
CN215692370U (en) * 2021-06-19 2022-02-01 杭州芯承科技有限公司 Horizontal coalescence filter

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Denomination of invention: A pre-treatment device in carbon four production process

Granted publication date: 20230407

Pledgee: Agricultural Bank of China Limited Dongzhi County Branch

Pledgor: Anhui Yifeng Petrochemical Co.,Ltd.

Registration number: Y2024980008753