CN112371069A - Continuous reaction, crystallization, filtration, washing, drying system - Google Patents
Continuous reaction, crystallization, filtration, washing, drying system Download PDFInfo
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- CN112371069A CN112371069A CN202011142785.8A CN202011142785A CN112371069A CN 112371069 A CN112371069 A CN 112371069A CN 202011142785 A CN202011142785 A CN 202011142785A CN 112371069 A CN112371069 A CN 112371069A
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- 238000005406 washing Methods 0.000 title claims abstract description 148
- 238000001914 filtration Methods 0.000 title claims abstract description 84
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 54
- 238000001035 drying Methods 0.000 title claims abstract description 49
- 238000002425 crystallisation Methods 0.000 title claims abstract description 28
- 230000008025 crystallization Effects 0.000 title claims abstract description 28
- 238000003828 vacuum filtration Methods 0.000 claims abstract description 101
- 230000007246 mechanism Effects 0.000 claims abstract description 56
- 238000000967 suction filtration Methods 0.000 claims abstract description 51
- 238000007599 discharging Methods 0.000 claims abstract description 43
- 239000012065 filter cake Substances 0.000 claims abstract description 20
- 238000003860 storage Methods 0.000 claims abstract description 12
- 238000000926 separation method Methods 0.000 claims abstract description 10
- 238000012824 chemical production Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 98
- 239000002002 slurry Substances 0.000 claims description 73
- 239000000463 material Substances 0.000 claims description 39
- 238000007789 sealing Methods 0.000 claims description 34
- 238000005086 pumping Methods 0.000 claims description 28
- 239000003638 chemical reducing agent Substances 0.000 claims description 15
- 239000000126 substance Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 5
- 238000011010 flushing procedure Methods 0.000 claims description 5
- 238000007790 scraping Methods 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 4
- 238000009825 accumulation Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 239000000047 product Substances 0.000 abstract description 32
- 238000001291 vacuum drying Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 9
- 239000000843 powder Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000003756 stirring Methods 0.000 description 8
- 239000006210 lotion Substances 0.000 description 7
- 238000009826 distribution Methods 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 239000007810 chemical reaction solvent Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 230000008676 import Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
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- 238000005452 bending Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000012265 solid product Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/117—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
- B01D29/54—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
- B01D29/6476—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a rotary movement with respect to the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/10—Heating arrangements using tubes or passages containing heated fluids, e.g. acting as radiative elements; Closed-loop systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/04—Agitating, stirring, or scraping devices
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Filtration Of Liquid (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a continuous reaction, crystallization, filtration, washing and drying system, and belongs to the technical field of pharmaceutical and chemical production equipment. The device comprises a batching unit, a reaction unit, a vacuum filtration unit, a drying unit and a storage unit which are sequentially connected, wherein the vacuum filtration unit comprises a vacuum filtration washing machine, and the vacuum filtration washing machine comprises a shell, a vacuum filtration tank, a feeding and discharging assembly, a suction filtration mechanism and a driving mechanism; the vacuum filtration tank in the vacuum filtration washing machine is set to be a rotary structure, the rotation is realized through the driving of the driving mechanism, and the filter cake of the insoluble product formed on the filter disc can be continuously scraped and collected by the scraper at the blanking scraper, so that the filter cake is maintained at a thinner thickness, and the filtration and separation effects of the soluble product are ensured; insoluble product powder obtained by the vacuum filtration washing machine is conveyed into a drying unit for vacuum drying. The invention ensures the suction filtration and separation effects of the product and can realize the continuous operation of the system.
Description
Technical Field
The invention belongs to the technical field of pharmaceutical chemical production equipment, and particularly relates to a continuous reaction, crystallization, filtration, washing and drying system.
Background
At present, most of chemical and medicine production processes adopt intermittent operation when filtering, washing and drying operations are carried out, a plurality of devices and a plurality of process horizontal layout schemes are adopted for production, materials need to be transferred in different devices, the operation is complex, the devices are more, the occupied area is large, and a part of the devices also adopt washing and filtering integrated machines for preparation. However, the conventional filtering and washing integrated machine device has the following problems: traditional filtration, washing all-in-one generally only through once washing and filtration, washing and filterable effect are relatively poor, and traditional filtration, washing all-in-one can have the phenomenon of gluing the wall in the work completion back simultaneously, and the raw materials leads to work efficiency to reduce and cause the wasting of resources, influences the work efficiency of equipment operation on next step.
The operation method of the traditional filtering and washing integrated machine is mainly as follows:
firstly, quantitatively injecting raw material slurry into a machine body, then cutting off slurry supply, then carrying out suction filtration, and finally scraping and collecting a filter cake formed by the slurry. In order to consider the overall process efficiency, the injection amount of slurry is large every time, the generated filter cake is thick, and when the filter cake is thick, the suction filtration efficiency and the solid-liquid separation efficiency are influenced, so that the overall large-scale investment cost and the overall generation cost of equipment are influenced, and the suction filtration and separation effects of products cannot be guaranteed, so that the production process cannot be continuously carried out.
Disclosure of Invention
The invention aims to provide a continuous reaction, crystallization, filtration, washing and drying system, which ensures the suction filtration and separation effects of products and can realize the continuous operation of the system.
In order to achieve the purpose, the invention adopts the following technical scheme:
a continuous reaction, crystallization, filtration, washing and drying system comprises a batching unit, a reaction unit, a vacuum filtration unit, a drying unit and a storage unit which are connected in sequence, wherein the batching unit is used for providing materials for the reaction unit, the materials enter the vacuum filtration unit for solid-liquid separation after reaction in the reaction unit, the drying unit is used for drying the formed powder-shaped materials, and the materials dried by the drying unit enter the storage unit;
the vacuum filtering unit comprises a vacuum filtering washing machine, and the vacuum filtering washing machine comprises a shell, a vacuum pumping and filtering tank, a feeding and discharging assembly, a pumping and filtering mechanism and a driving mechanism;
the feeding and discharging component and the vacuum filtration groove are positioned in the shell, and the feeding and discharging component is positioned above the vacuum filtration groove; the suction filtration mechanism is positioned below the shell, and the driving mechanism is positioned above the shell;
the feeding and discharging assembly comprises a central disc fixing frame, a discharging scraper, a discharging shovel, a hollow groove, a slurry distributing groove and a washing liquid distributing groove, the central disc fixing frame is fixed in the shell, the vacuum pumping and filtering groove is positioned below the central disc fixing frame, and the discharging scraper, the slurry distributing groove and the washing liquid distributing groove are respectively connected with the central disc fixing frame; the slurry distributing groove and the washing liquid distributing groove are radially arranged around the center of the vacuum filtration groove, the slurry distributing groove and the washing liquid distributing groove are respectively connected with a corresponding slurry inlet and a corresponding washing liquid inlet, slurry uniformly flows into the vacuum filtration groove through the slurry distributing groove, and a washing area is formed through the washing liquid distributing groove to wash insoluble substances in the slurry; when a filter cake formed by insoluble substances in the vacuum filtration tank reaches a certain thickness, the filter cake is scraped out of the vacuum filtration tank through the inclined scraping surface at the lower end of the blanking scraper;
the upper part of the vacuum filtration tank is connected with the driving mechanism, and the vacuum filtration tank can continuously rotate in the shell under the action of the driving mechanism;
the lower part of the vacuum pumping and filtering tank is connected with the pumping and filtering mechanism, and the liquid in the vacuum pumping and filtering tank enters the pumping and filtering mechanism for pumping and filtering under the action of gravity.
As a preferable scheme of the invention, the drying unit is formed by connecting 1-3 double-cone rotary vacuum multifunctional dryers in parallel, the materials treated by the vacuum filtration washing machine enter each double-cone rotary vacuum multifunctional dryer to be dried, and the dried materials are conveyed to the storage unit.
In another preferred embodiment of the present invention, the double-cone rotary vacuum multifunctional dryer comprises a cylinder, the cylinder comprises an inner cylinder and an outer cylinder, the inner cylinder is in a vacuum state, a jacket structure is formed between the inner cylinder and the outer cylinder, the inner cylinder and the material are subjected to heat exchange by introducing hot water or hot steam into the jacket structure, and the evaporated steam is discharged.
Preferably, the vacuum filtration tank is of a housing structure, and an upper flange of the vacuum filtration tank is provided with a filter cloth, a support net and a bracket, wherein the support net is positioned on the bracket, and the filter cloth is positioned on the support net; the slurry distributing grooves are provided with one square material distributing groove, the washing liquid distributing grooves are provided with three square material distributing grooves, and the slurry inlet and the washing liquid inlet are respectively connected with an external slurry supply device and a washing liquid supply device through an upper flange and a lower flange on the shell.
Preferably, the housing includes a housing main body, the housing main body includes a lower end enclosure, a lower cylinder, an upper cylinder and an upper end enclosure from bottom to top, a support structure is disposed below the housing main body, an upper mechanical seal and a lower mechanical seal are disposed at the top and the bottom of the housing main body respectively, the upper mechanical seal is used for sealing between the housing and the driving mechanism, and the lower mechanical seal is used for sealing between the housing and the suction filtration mechanism; the shell body is also provided with a manhole and a solid discharge port, and the solid discharge port is arranged at the position of the shell body below the blanking scraper plate and the discharge shovel correspondingly.
Preferably, the lower end enclosure, the lower cylinder, the upper cylinder and the upper end enclosure are welded and fixedly connected together in sequence, the support structure comprises a support and support legs, the top of the support is connected with the shell body, and the bottom of the support is connected with the support legs; a liquid level meter and a liquid level sensor are arranged below the inside of the shell, and the liquid level meter is used for displaying the water accumulation amount inside the shell in real time; the liquid level sensor is used for collecting and conveying the liquid level condition inside the shell to the outside in real time, the liquid level sensor is externally connected with an alarm device, and when the accumulated water inside the shell reaches a certain warning value, the alarm can immediately send an alarm signal to the outside to prompt an operator to process in time; the shell body is also provided with a sight glass, a lighting lamp, a vacuum pressure gauge, a safety access hole and a flushing pipe.
Preferably, the main body structure of the slurry distributing trough and the washing liquid distributing trough consists of a plurality of feeding shovels, each feeding shovel comprises a feeding shovel baffle plate, a feeding shovel lower shovel part, feeding shovel sawteeth and a feeding square pipe, and tooth-shaped overflow ports are respectively distributed at the upper parts of two side walls of each feeding shovel extending along the radial direction of the vacuum filtration trough and used for ensuring that the slurry and the washing liquid are uniformly distributed along the radial direction of the vacuum filtration trough; the slurry distributing groove and the washing liquid distributing groove divide the vacuum pumping filtration groove into six areas, the six areas are always in a negative pressure state for pumping filtration operation, three areas are used for washing operation during pumping filtration, and the slurry distributing groove and the washing liquid distributing groove are respectively positioned at the junction of the two areas.
Preferably, the suction filtration mechanism includes a liquid outlet flange, a tetrafluoro sealing device, a lower machine seal, a central disk connecting flange and a suction filtration pipe, the central disk connecting flange is used for fixedly connecting the suction filtration mechanism with a vacuum suction filtration tank, the suction filtration mechanism and the casing are in sealing fit through the tetrafluoro sealing device, the tetrafluoro sealing device includes a sheath and a tetrafluoro sleeve, the suction filtration pipe extends into the sheath, the tetrafluoro sealing device and the suction filtration pipe are in sealing connection through the tetrafluoro sleeve, a flange for supporting the tetrafluoro sealing device is arranged at the lower end of a box body of the tetrafluoro sealing device, the liquid outlet flange is used for fixedly connecting with an external liquid outlet collection device, and the lower machine seal is used for connecting the casing and the tetrafluoro sealing device.
Preferably, the driving mechanism comprises a speed reducer, an explosion-proof motor, a frame, a motor flange, a roller bearing, a bearing seat, an upper central disc connecting flange and a tetrafluoro oil seal, the driving mechanism is fixedly connected with the vacuum filtration tank through the upper central disc connecting flange, and the rotation of the vacuum filtration tank is driven and realized through the driving mechanism; the explosion-proof motor, the speed reducer and a solid shaft of the motor are sequentially connected in a transmission manner, the explosion-proof motor and the speed reducer are arranged above the rack, and the part of the speed reducer, which is connected with the explosion-proof motor in a transmission manner, is hermetically connected with the rack; foretell ejection of compact shovel includes that ejection of compact shovel main part, ejection of compact shovel backup pad, ejection of compact shovel preceding bent plate and ejection of compact shovel tetrafluoro board, and foretell ejection of compact shovel backup pad is located the below of foretell ejection of compact shovel main part, and foretell ejection of compact shovel tetrafluoro board is located the front end of foretell ejection of compact shovel.
The continuous reaction, crystallization, filtration, washing and drying system is applied to pharmaceutical chemical production equipment.
The continuous reaction, crystallization, filtration washing and drying system has the following specific working processes:
the method comprises the following steps: the material firstly enters the batching unit through the feeding pipe, the material is uniformly stirred in a batching tank of the batching unit through a stirring device, and the material is conveyed into a reaction kettle of the reaction unit under the conveying action of the pump after being uniformly stirred.
Step two: in the reaction kettle, the material reacts with the solvent flowing in from the reaction solvent inlet, and simultaneously the reaction crystallization process is completed under the action of the stirring device, and then the material is conveyed from the reaction kettle to a vacuum filtration washing machine along with the current condition.
Step three: the product is filtered and washed by the washing liquid input from the washing solvent inlet and the stirring device.
Step four: after the filtration and the washing are finished, the washing liquid flows into a recovery tank through a connecting pipe on the vacuum filtration washing machine for recovery treatment.
Step five: and the washed product flows into the dryer unit from a solid product outlet of the vacuum filtration washing machine, the product is dried through the circulation of the stirring device and the heat medium, and the dried product is discharged and unloaded through a discharge pipe on the dryer unit.
The reaction kettle of the reaction unit is in through connection with the vacuum filtration washing machine through a connecting pipe, a solid material outlet at the lower end of the vacuum filtration washing machine is in through connection with a dryer unit of the drying unit through a connecting pipe, the lower end of a suction filtration pipe of the vacuum filtration washing machine is in through connection with a liquid storage tank through a connecting pipe, and the lower end of the dryer unit is in through connection with a storage tank of the storage unit through a connecting pipe. The whole device is reasonable in layout, the products complete the operation of respective chemical units step by step, the continuous operation from reaction, filtration, washing and drying to collection of the products is realized, the working efficiency is improved, and the productivity is enlarged.
Vacuum filtration groove sets up to the rotary type structure in the vacuum filtration washing machine, realizes rotating through the actuating mechanism drive, and vacuum filtration groove top is provided with ground paste distributing trough, lotion distributing trough and unloading scraper blade, ground paste distributing trough with lotion distributing trough is linked together with corresponding ground paste import, lotion import, ground paste import and lotion import are connected with external ground paste feeding device, lotion feeding device through last flange and lower flange on the casing, and the play material shovel is fixed structure for the filter cake that forms the insoluble product on the filter disc is continuous is struck off by the scraper, is collected, makes the filter cake maintain at thinner thickness, guarantees suction filtration, the separation effect of soluble product, and corresponding ground paste realizes continuous feeding with the lotion, satisfies the requirement of continuity operation.
Insoluble product powder obtained by a vacuum filtration washing machine is conveyed to enter a drying unit for vacuum drying, when a vacuum dryer is opened in advance to reach the upper limit of the processing capacity of the vacuum dryer, the insoluble product powder is fed back to a controller, the controller controls a valve connected with the controller to be closed so as to block feeding, and then controls another vacuum dryer to be started and open the valve connected with the vacuum dryer so that the other vacuum dryer can feed and dry, namely, the rotary work of different vacuum dryers is realized through the opening and closing of the valve so as to match the working efficiency of the vacuum filtration washing machine, the continuous work of the vacuum filtration washing machine is realized, and the number of a feeding port and the number of the vacuum dryers can be set according to the working efficiency of the vacuum filtration washing machine and the processing capacity of a vacuum drying.
Compared with the prior art, the invention has the following beneficial technical effects:
(1) the vacuum filtration washing machine's vacuum filtration groove sets up to the rotary type structure, and the scraper is fixed structure for the filter cake that forms the insoluble product on the vacuum filtration groove is continuous is strikeed off, is collected by the scraper, makes the filter cake maintain at thinner thickness, does not influence further suction filtration washing work, and corresponding ground paste realizes continuous feeding with the lotion, satisfies the requirement of continuity operation. Meanwhile, the liquid is subjected to gravity flow and vacuum filtration in the suction filtration pipe, so that the liquid discharge rate is greatly improved.
(2) The feeding and discharging assembly is provided with 1 square uniform slurry distributing groove and 3 square uniform washing liquid distributing grooves, the slurry distributing grooves and the washing liquid distributing grooves are arranged along the radial direction around the center of the vacuum filtration groove, the vacuum filtration groove is divided into six areas, the six areas are always in a negative pressure state for carrying out filtration operation, wherein three non-adjacent areas carry out washing operation while carrying out filtration, and the positions of the slurry distributing grooves and the positions of the washing liquid distributing grooves are respectively positioned at the junction of the two areas.
(3) Through set up the feed opening on the casing at the vacuum filtration washing machine, the feed opening passes through pipeline external 3-4 bipyramid vacuum drying ware in proper order, all connect valve and bipyramid vacuum drying ware, when a bipyramid vacuum drying ware that opens in advance reaches its throughput upper limit, then open the valve that another bipyramid vacuum drying ware is connected, then close and reach the valve that saturation operation desicator is connected now, in order to block the feeding, make another bipyramid vacuum drying ware feeding, it is dry, realize different bipyramid vacuum drying ware's rotation work promptly through the switching of valve, with the work efficiency who matches the vacuum filtration washing machine, realize the continuous operation of vacuum filtration washing machine, and then promote entire system's production efficiency.
(4) The system adopts a full-sealed design, is suitable for treating dangerous and toxic materials containing solution or moisture, and can effectively recycle the reaction solvent.
(5) The system adopts a vertical layout, so that the occupied area of the whole system is reduced, the products complete the operation of respective chemical engineering units step by step in each device, the production efficiency of the products is improved, and the capacity is expanded; meanwhile, the product is conveyed among all levels in a gravity-flow mode, and damage to product crystals caused by horizontal conveying of a pump is avoided, so that the effect of automatic production is achieved, and unmanned operation is realized.
(6) The system is different from the traditional five-in-one system of reaction, crystallization, filtration, washing and drying, which can only perform one function simultaneously when in operation, and the rest functions are idle when in operation, so that the continuous operation of the reaction, crystallization, filtration, washing and drying processes can not be realized.
In conclusion, the continuous reaction, crystallization, filtration, washing and drying system can realize continuous operation, ensures the suction filtration and separation effects of products, and solves the technical problem that the related system in the prior art cannot be continuously operated.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of a continuous reaction, crystallization, filtration, washing, and drying system according to the present invention;
FIG. 2 is a schematic view mainly illustrating the structure of a vacuum filtration washing machine;
FIG. 3 is a schematic view of the structure of the housing of the vacuum filtration washing machine;
FIGS. 4 and 5 are schematic views showing the construction of a vacuum suction filter tank in the vacuum filter washer;
6-9 generally show schematic views of the structure of the feed and discharge assembly in a vacuum filtration washer;
FIG. 10 is a schematic view mainly illustrating the structure of a suction filtration mechanism in the vacuum filtration washing machine;
FIG. 11 is a schematic view mainly illustrating the construction of a driving mechanism in the vacuum filter washing machine;
FIG. 12 is a schematic view mainly illustrating the structure of the dryer of the present invention;
FIG. 13 shows essentially a schematic diagram of the structure of the reactor in the reaction unit according to the invention.
In the figure: 1. a housing; 2. a vacuum pumping filtration tank; 3. a feeding and discharging component; 4. a suction filtration mechanism; 5. a drive mechanism; 11. mounting a machine seal; 12. a manhole; 13. an upper end enclosure; 14. an upper flange; 15. an upper cylinder body; 16. a lower flange; 17. a lower cylinder body; 18. a pipe connecting flange; 19. a solid discharge port; 110. a lower end enclosure; 111. a level gauge and a level sensor; 112. sealing off the machine; 113. a flush tube; 114. a support; 115. a support leg; 21. an upper flange of the housing; 22. a housing edge flange; 23. cleaning the discharging baffle plate assembly; 24. a housing lower flange; 31. a central disc fixing frame; 32. blanking scraper plates; 33. discharging shovels; 331. a discharging shovel supporting plate; 332. a front bending plate of the discharging shovel; 333. a discharging shovel body; 334. discharging and shoveling a tetrafluoro plate; 34. a hollow groove; 35. feeding shovels; 351. a feeding shovel baffle; 352. a feeding shovel lower shovel component; 353. a feeding shovel sawtooth; 354. a feeding square tube; 41. a liquid outlet flange; 42. a sheath; 43. a tetrafluoro sleeve; 44. sealing off the machine; 45. the central disc is connected with a flange; 46. a suction filter tube; 51. a speed reducer; 52. an explosion-proof motor; 53. a frame; 54. a motor flange; 55. a roller bearing; 56. a bearing seat; 57. the upper central disc is connected with a flange; 58. tetrafluoro oil seal; 61. a frame; 62. a barrel; 63. a top cover; 64. a filter rod; 65. a vacuum tube; 66. a first gear; 67. the motor is driven.
Detailed Description
The invention provides a continuous reaction, crystallization, filtration, washing and drying system, and in order to make the advantages and technical scheme of the invention clearer and clearer, the invention is described in detail with reference to specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
Spatially relative terms, such as "below," "lower," "upper," "above," "upper," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the object in use or operation in addition to the orientation depicted in the figures. For example, if the items in the figures are turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the elements or features. Thus, the exemplary term "below" can encompass both an orientation of below and above. Other orientations of the components are possible (rotated 90 degrees or at other orientations) and the spatially relative terms used herein should be interpreted accordingly.
As shown in fig. 1, the continuous reaction, crystallization, filtration, washing and drying system of the present invention comprises a dosing unit, a reaction unit, a vacuum filtration unit, a drying unit and a storage unit, which are connected in sequence, wherein the dosing unit is used for providing materials to the reaction unit, the materials enter the vacuum filtration unit for solid-liquid separation after the reaction of the reaction unit, the drying unit is used for drying the formed powder material, and the materials dried by the drying unit enter the storage unit.
Foretell batching unit is including batching jar and agitating unit, and the material gets into batching jar in, and agitating unit installs on batching jar, carries out the intensive mixing even back to its material, sends into the reaction unit, if through the pipeline transport raw materials between batching jar and the reaction unit.
The reaction unit is a reactor having a structure as shown in FIG. 13, in which materials are reacted, and a reaction solvent inlet is provided in the reactor.
The drying unit, as shown in fig. 12, includes 1-3 groups of dryers connected in parallel, and is composed of 1-3 double-cone rotary vacuum multifunctional dryers, which are production equipment commonly used for vacuum drying and mixing of powder and granular materials in the industries of biological medicine, food, chemical industry and the like, and are particularly suitable for drying of easily-oxidized, easily-volatile, heat-sensitive, strongly-stimulated and toxic materials and materials which are not allowed to damage crystals, but the double-cone rotary vacuum dryers are used for drying heat-sensitive materials or materials containing solvents which cannot be directly contacted with high-temperature air.
The cylinder of the double-cone rotary vacuum dryer consists of an inner cylinder and an outer cylinder, when the double-cone rotary vacuum dryer works, the inner cavity of the cylinder is in a vacuum state, hot steam or hot water is conveyed into a jacket consisting of the inner cylinder and the outer cylinder of the cylinder through a conveying device, heat exchange is carried out between the heat and materials through the inner cylinder, and evaporated steam is pumped away through a vacuum pump and a vacuumizing pipe.
As a main improvement point of the present invention, as shown in fig. 2, the vacuum filtration unit includes a vacuum filtration washing machine, the vacuum filtration washing machine includes a housing 1, a vacuum filtration tank 2, a feeding and discharging assembly 3, a filtration mechanism 4 and a driving mechanism 5, the feeding and discharging assembly 3 and the vacuum filtration tank 2 are located in the housing 1, the feeding and discharging assembly is located above the vacuum filtration tank, the filtration mechanism is located below the housing, and the driving mechanism is located above the housing.
As shown in fig. 3, the above-mentioned housing 1 includes a housing main body portion, the housing main body portion is formed by sequentially fixedly connecting an upper end enclosure 13, an upper cylinder 15, a lower cylinder 17 and a lower end enclosure 110 by welding, the housing main body further includes an upper machine enclosure 11, a manhole 12, an upper flange 14, a lower flange 16, a solid discharge port 19, a lower machine enclosure 112, a pipe connecting flange 18, a support 114 and a support leg 115, the upper machine enclosure 11 is used for sealing between the housing 1 and a driving mechanism, and the lower machine enclosure 112 is used for connecting between the housing and a suction filtration pipe. The solid discharge port 19 is preferably provided in the housing body below the above-mentioned blanking scraper and discharge shovel, and the purpose of this design is: can in time discharge the solid after filtering the washing in time, prevent that the filter cake on the vacuum filtration groove is too thick to influence the efficiency of suction filtration washing.
A liquid level meter and a liquid level sensor 111 are arranged below the inside of the shell, and the liquid level meter is used for displaying the water accumulation amount inside the shell in real time; the liquid level sensor is used for collecting and conveying the liquid level condition inside the shell to the outside in real time, the liquid level sensor is externally connected with an alarm device, and when the accumulated water inside the shell reaches a certain warning value, the alarm can immediately send an alarm signal to the outside to prompt an operator to process in time; the shell body is also provided with a sight glass, a lighting lamp, a vacuum pressure gauge, a safety access hole and a flushing pipe 113, and the flushing pipe 113 is used for flushing the closed continuous filtering washing machine.
As a main innovation point of the invention, with reference to FIG. 4 and FIG. 5, the vacuum filtration tank is designed to be a rotary structure and driven by a driving mechanism to rotate continuously in the housing, and comprises an upper flange 21 of the housing, a side flange 22 of the housing, a cleaning and discharging baffle assembly 23 and a lower flange 24 of the housing, and the upper flange of the vacuum filtration tank is provided with a filter cloth, a supporting net and a bracket. The vacuum filtration tank is creatively set to be a rotary structure, the scraper is a fixed structure, so that a filter cake of an insoluble product formed on the vacuum filtration tank is continuously scraped and collected by the scraper, the filter cake is maintained at a thinner thickness, further filtration and washing work is not influenced, and corresponding slurry and washing liquid are continuously fed, so that the requirement of continuous operation is met.
As shown in fig. 6 to 9, the feeding and discharging assembly 3 includes a central disk fixing frame 31, a discharging scraper 32, a discharging shovel 33, a hollow tank 34, a slurry distributing tank and a washing liquid distributing tank, the central disk fixing frame 31 is fixed in the housing, the vacuum filtering tank is located below the central disk fixing frame, the discharging scraper 32, the slurry distributing tank and the washing liquid distributing tank are respectively connected with the central disk fixing frame 31, the slurry distributing tank and the washing liquid distributing tank are radially arranged around the center of the vacuum filtering tank, the slurry distributing tank and the washing liquid distributing tank are respectively connected with a corresponding slurry inlet and a corresponding washing liquid inlet, the slurry is uniformly flowed into the vacuum filtering tank through the slurry distributing tank, and a washing area is formed through the washing liquid distributing tank to wash insoluble substances in the slurry; when the filter cake formed by the insoluble substances in the vacuum filtration tank reaches a certain thickness, the filter cake is scraped out of the vacuum filtration tank through the inclined scraping surface at the lower end of the blanking scraper.
The slurry distributing groove and the washing liquid distributing groove main body are composed of a feeding shovel 35, the feeding shovel 35 comprises a feeding shovel baffle 351, a feeding shovel lower shovel part 352, feeding shovel sawteeth 353 and a feeding square pipe 354, and tooth-shaped overflow ports are respectively distributed on the upper portions of two side walls of each feeding shovel, which extend along the radial direction of the vacuum filtration groove, and are used for ensuring that slurry and washing liquid are uniformly distributed along the radial direction of the vacuum filtration groove. When the vacuum distribution device works, the external slurry supply device and the external washing liquid supply device supply to the feeding square pipes in the slurry distribution groove and the washing liquid distribution groove through the corresponding slurry inlets and washing liquid inlets, and after the slurry and the washing liquid in the square pipes are full of, the slurry and the washing liquid overflow along the tooth-shaped overflow ports and are uniformly distributed in the radial direction of the vacuum pumping and filtering groove to finish uniform distribution.
Preferably, the feeding and discharging assembly is provided with 1 square uniform slurry distributing groove and 3 square uniform washing liquid distributing grooves, the slurry distributing grooves and the 3 washing liquid distributing grooves are arranged around the center of the vacuum filtration groove along the radial direction, the vacuum filtration groove is divided into six areas, the six areas are always in a negative pressure state for carrying out filtration operation, wherein three areas carry out washing operation while carrying out filtration, and the slurry distributing groove and the washing liquid distributing groove are respectively positioned at the junction of the two areas.
The discharging shovel comprises a discharging shovel main body 333, a discharging shovel support plate 331, a discharging shovel front bending plate 332 and a discharging shovel tetrafluoro plate 334, wherein the discharging shovel support plate is located below the discharging shovel main body, and the discharging shovel tetrafluoro plate is located at the front end of the discharging shovel.
As shown in fig. 10, the suction filtration mechanism includes a liquid outlet flange 41, a sheath 42, a tetrafluoro sleeve 43, a lower machine seal 44, a central disk connecting flange 45 and a suction filtration pipe 46, the central disk connecting flange is used for fixedly connecting the suction filtration mechanism and the vacuum suction filtration tank, the suction filtration mechanism and the shell are in sealing fit through a tetrafluoro sealing device, the tetrafluoro sealing device includes a sheath 42 and a tetrafluoro sleeve 43, the suction filtration pipe extends into the tetrafluoro sealing device sheath, the tetrafluoro sealing device and the suction filtration pipe are in sealing connection through the tetrafluoro sleeve, a flange for supporting the sealing device is arranged at the lower end of a box body of the tetrafluoro sealing device, the lower end of the suction filtration mechanism is provided with the liquid outlet flange, the liquid outlet flange is used for fixedly connecting with an external liquid outlet collection device, and the lower machine seal is.
Furthermore, liquid enters the suction filtration pipe in the vacuum suction filtration tank in a gravity self-flow and vacuum suction filtration mode, and is discharged out of the equipment through the suction filtration pipe, so that the liquid discharge rate is greatly improved.
As shown in fig. 11, the driving mechanism includes a speed reducer 51, an explosion-proof motor 52, a frame 53, a motor flange 54, a roller bearing 55, a bearing seat 56, an upper center plate connecting flange 57, and a tetrafluoro oil seal 58. The driving mechanism is fixedly connected with the vacuum filtration tank through an upper central disc connecting flange, the rotation of the vacuum filtration tank is driven to be realized through the driving mechanism, a slurry distributing groove, a washing liquid distributing groove and a discharging scraper blade are arranged above the vacuum filtration tank, the slurry distributing groove and the washing liquid distributing groove are communicated with a corresponding slurry inlet and a corresponding washing liquid inlet, and the slurry inlet and the washing liquid inlet are connected with an external slurry supply device and a washing liquid supply device through an upper flange and a lower flange on the shell.
The explosion-proof motor, the speed reducer and the motor solid shaft in the driving mechanism are sequentially connected in a transmission manner, the explosion-proof motor and the speed reducer are arranged above the rack, and the position, connected with the explosion-proof motor in a transmission manner, of the speed reducer is connected with the rack in a sealing manner. Preferably, the motor is an explosion-proof variable frequency motor, the speed reducer is a speed reducer for a disc feeder, and the illuminating lamp is an explosion-proof lamp. The driving mechanism is mainly used for driving the vacuum filtration tank to rotate, when the vacuum filtration tank works, slurry is uniformly distributed on the vacuum filtration tank through the slurry distribution tank, liquid in the slurry is removed through suction filtration, insoluble substances in the slurry are continuously reserved on the upper portion of the vacuum filtration tank and pass through a cleaning area formed by the washing liquid distribution tank under the rotation of the vacuum filtration tank, so that the insoluble substances are cleaned, and the purity of a product is ensured.
The vacuum filtering washing machine comprises the following specific working steps:
the slurry is uniformly distributed on a vacuum filtration tank through a slurry distributing groove, liquid in the slurry is removed through suction filtration, insoluble substances in the slurry are continuously kept at the upper part of the vacuum filtration tank and pass through a cleaning area formed by a washing liquid distributing groove under the rotation of the vacuum filtration tank so as to clean the insoluble substances, the purity of a product is ensured, meanwhile, the slurry on the vacuum filtration tank is always in a negative pressure suction filtration state, liquid components in the slurry are continuously suction-filtered into a housing below the vacuum filtration tank and are discharged through a suction filtration pipe;
the feeding and discharging assembly is provided with 1 square uniform slurry distributing groove and 3 square uniform washing liquid distributing grooves which are arranged along the radial direction around the center of the vacuum filtration groove, the vacuum filtration groove is divided into six areas, and the six areas are always in a negative pressure state for carrying out suction filtration operation. When the filter cake formed by insoluble substances reaches a certain thickness, the filter cake contacts the bottom of the blanking scraper, is scraped away from the vacuum filtration tank through the inclined scraping surface at the lower end of the blanking scraper and falls into the solid outlet, and is further collected through external equipment;
in the process, slurry is continuously fed and distributed, insoluble products are continuously scraped and collected, the reduction of the production efficiency caused by frequently opening a blanking valve in the traditional intermittent operation process is avoided, and the large-scale production can be realized.
As shown in fig. 12, which shows a schematic structural diagram of the dryer of the present invention, the main components include a frame 61, a cylinder 62, a top cover 63, a filter rod 64, a vacuum tube 65, a first gear 66, and a driving motor 67.
The operation of the continuous reaction, crystallization, filtration, washing and drying system of the present invention will be described below.
The method comprises the following steps: the method comprises the following steps that materials firstly enter a batching tank through a feeding pipe, are uniformly stirred through a stirring device, and are conveyed to a reactor under the conveying action of a pump after being uniformly stirred;
step two: in the reactor, the material reacts with the solvent flowing in from the reaction solvent inlet, and simultaneously the reaction crystallization process is completed under the action of the stirring device, and then the material is conveyed from the reaction kettle to a vacuum filtration washing machine along with the current condition.
Step three: the product is filtered and washed by the washing liquid input from the washing solvent inlet and the stirring device.
Step four: after the filtration and the washing are finished, the washing liquid flows into a recovery tank through a connecting pipe on the vacuum filtration washing machine for recovery treatment.
Step five: and the washed product flows into the dryer unit from a solid product outlet of the vacuum filtration washing machine, the product is dried through the inlet and outlet circulation of the stirring device and the heating medium, and the dried product is discharged and unloaded through a discharge pipe on the dryer unit.
According to the continuous reaction, crystallization, filtration, washing and drying system provided by the invention, the whole system is reasonable in layout, the products complete the operation of respective chemical unit step by step, the continuous operation from reaction, filtration, washing and drying to collection of the products is realized, the working efficiency is improved, and the productivity is enlarged.
The parts which are not described in the invention can be realized by taking the prior art as reference.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto.
Although terms such as housing, vacuum filter cell, feed and discharge assembly, suction filtration mechanism, drive mechanism, upper machine seal, manhole, etc. are used more often herein, the possibility of using other terms is not excluded, and these terms are used only for the purpose of more conveniently describing and explaining the essence of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
It is further understood that the specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. A continuous reaction, crystallization, filtration, washing, drying system characterized in that: the device comprises a batching unit, a reaction unit, a vacuum filtration unit, a drying unit and a storage unit which are connected in sequence, wherein the batching unit is used for providing materials for the reaction unit, the materials enter the vacuum filtration unit for solid-liquid separation after reaction in the reaction unit, the drying unit is used for drying the formed powder-like materials, and the materials dried by the drying unit enter the storage unit;
the vacuum filtering unit comprises a vacuum filtering washing machine, and the vacuum filtering washing machine comprises a shell, a vacuum pumping and filtering tank, a feeding and discharging assembly, a pumping and filtering mechanism and a driving mechanism;
the feeding and discharging component and the vacuum filtration groove are positioned in the shell, and the feeding and discharging component is positioned above the vacuum filtration groove; the suction filtration mechanism is positioned below the shell, and the driving mechanism is positioned above the shell;
the feeding and discharging assembly comprises a central disc fixing frame, a discharging scraper, a discharging shovel, a hollow groove, a slurry distributing groove and a washing liquid distributing groove, the central disc fixing frame is fixed in the shell, the vacuum pumping and filtering groove is positioned below the central disc fixing frame, and the discharging scraper, the slurry distributing groove and the washing liquid distributing groove are respectively connected with the central disc fixing frame; the slurry distributing groove and the washing liquid distributing groove are radially arranged around the center of the vacuum filtration groove, the slurry distributing groove and the washing liquid distributing groove are respectively connected with a corresponding slurry inlet and a corresponding washing liquid inlet, slurry uniformly flows into the vacuum filtration groove through the slurry distributing groove, and a washing area is formed through the washing liquid distributing groove to wash insoluble substances in the slurry; when a filter cake formed by insoluble substances in the vacuum filtration tank reaches a certain thickness, the filter cake is scraped out of the vacuum filtration tank through the inclined scraping surface at the lower end of the blanking scraper;
the upper part of the vacuum filtration tank is connected with the driving mechanism, and the vacuum filtration tank can continuously rotate in the shell under the action of the driving mechanism;
the lower part of the vacuum pumping and filtering tank is connected with the pumping and filtering mechanism, and the liquid in the vacuum pumping and filtering tank enters the pumping and filtering mechanism for pumping and filtering under the action of gravity.
2. A continuous reaction, crystallization, filtration, washing, drying system according to claim 1, wherein: the drying unit is formed by connecting 1-3 double-cone rotary vacuum multifunctional dryers in parallel, materials processed by the vacuum filtering and washing machine enter each double-cone rotary vacuum multifunctional dryer to be dried respectively, and the materials are conveyed to the storage unit after being dried.
3. A continuous reaction, crystallization, filtration, washing, drying system according to claim 2, wherein: the double-cone rotary vacuum multifunctional dryer comprises a cylinder body, wherein the cylinder body consists of an inner cylinder body and an outer cylinder body, the inner cylinder body is in a vacuum state, a jacket structure is formed between the inner cylinder body and the outer cylinder body, hot water or hot steam is introduced into the jacket structure to enable the inner cylinder body to exchange heat with materials, and the evaporated water is discharged.
4. A continuous reaction, crystallization, filtration, washing, drying system according to claim 1, wherein: the vacuum pumping filtration tank is of a housing structure, the upper flange of the vacuum pumping filtration tank is provided with a filter cloth, a support net and a bracket, the support net is positioned on the bracket, and the filter cloth is positioned on the support net; the washing machine is characterized in that one slurry distributing groove is arranged, the shape of the washing machine distributing groove is square, the number of the washing machine distributing grooves is three, the shape of the washing machine distributing groove is square, and the slurry inlet and the washing machine inlet are respectively connected with an external slurry supply device and a washing machine supply device through an upper flange and a lower flange on the shell.
5. A continuous reaction, crystallization, filtration, washing, drying system according to claim 1, wherein: the shell comprises a shell body, the shell body comprises a lower end enclosure, a lower cylinder body, an upper cylinder body and an upper end enclosure from bottom to top, a supporting structure is arranged below the shell body, an upper machine seal and a lower machine seal are respectively arranged at the top and the bottom of the shell body, the upper machine seal is used for sealing the shell and the driving mechanism, and the lower machine seal is used for sealing the shell and the suction filtration mechanism; the shell body on still be provided with manhole and solid discharge gate, the solid discharge gate set up the shell body department of unloading scraper blade and ejection of compact shovel corresponding below.
6. A continuous reaction, crystallization, filtration, washing, drying system according to claim 5, wherein: the lower end enclosure, the lower cylinder body, the upper cylinder body and the upper end enclosure are fixedly connected together in sequence in a welding mode, the supporting structure comprises a support and supporting legs, the top of the support is connected with the shell body, and the bottom of the support is connected with the supporting legs; a liquid level meter and a liquid level sensor are arranged below the inside of the shell, and the liquid level meter is used for displaying the water accumulation amount inside the shell in real time; the liquid level sensor is used for collecting and conveying the liquid level condition in the shell to the outside in real time, the liquid level sensor is externally connected with an alarm device, and when the accumulated water in the shell reaches a certain warning value, the alarm can immediately send an alarm signal to the outside to prompt an operator to process in time; the shell body is also provided with a sight glass, a lighting lamp, a vacuum pressure gauge, a safety access hole and a flushing pipe.
7. A continuous reaction, crystallization, filtration, washing, drying system according to claim 4, wherein: the main body structures of the slurry distributing trough and the washing liquid distributing trough are composed of a plurality of feeding shovels, each feeding shovel comprises a feeding shovel baffle plate, a feeding shovel lower shovel part, feeding shovel sawteeth and a feeding square pipe, and tooth-shaped overflow ports are respectively distributed on the upper parts of two side walls of each feeding shovel extending along the radial direction of the vacuum filtration trough and used for ensuring that the slurry and the washing liquid are uniformly distributed along the radial direction of the vacuum filtration trough; the slurry distributing groove and the washing liquid distributing groove divide the vacuum pumping filtration groove into six areas, the six areas are always in negative pressure state for pumping filtration operation, wherein three areas are used for washing operation while pumping filtration is carried out, and the slurry distributing groove and the washing liquid distributing groove are respectively positioned at the junction of the two areas.
8. A continuous reaction, crystallization, filtration, washing, drying system according to claim 1, wherein: suction filtration mechanism including going out liquid flange, tetrafluoro sealing device, machine seal down, center disk flange and suction filtration pipe, center disk flange be used for with suction filtration mechanism and vacuum suction filtration groove fixed connection, suction filtration mechanism with pass through between the casing the sealed cooperation of tetrafluoro sealing device, tetrafluoro sealing device includes sheath and tetrafluoro cover, the suction filtration pipe stretch into extremely the sheath in, tetrafluoro sealing device with through tetrafluoro cover sealing connection between the suction filtration pipe, tetrafluoro sealing device box body lower extreme is provided with and is used for the support tetrafluoro sealing device's flange, it is used for carrying out fixed connection with external liquid collection device to go out the liquid flange, machine seal down be used for the casing with be connected between the tetrafluoro sealing device.
9. A continuous reaction, crystallization, filtration, washing, drying system according to claim 1, wherein: the driving mechanism comprises a speed reducer, an explosion-proof motor, a frame, a motor flange, a roller bearing, a bearing seat, an upper central disc connecting flange and a tetrafluoro oil seal, and is fixedly connected with the vacuum pumping filter tank through the upper central disc connecting flange and driven by the driving mechanism to realize the rotation of the vacuum pumping filter tank; the explosion-proof motor, the speed reducer and a solid shaft of the motor are sequentially connected in a transmission manner, the explosion-proof motor and the speed reducer are arranged above the rack, and the part of the speed reducer, which is connected with the explosion-proof motor in a transmission manner, is connected with the rack in a sealing manner; the ejection of compact shovel including ejection of compact shovel main part, ejection of compact shovel backup pad, ejection of compact shovel preceding bent plate and ejection of compact shovel tetrafluoro board, ejection of compact shovel backup pad be located the below of ejection of compact shovel main part, the ejection of compact shovel tetrafluoro board be located the front end of ejection of compact shovel.
10. The use of a continuous reaction, crystallization, filtration, washing, drying system according to any one of claims 1 to 9 in pharmaceutical chemical production equipment.
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| CN112371069B (en) | 2023-08-29 |
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