CN112370843B - Closed continuous filtering washing machine - Google Patents
Closed continuous filtering washing machine Download PDFInfo
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- CN112370843B CN112370843B CN202011142795.1A CN202011142795A CN112370843B CN 112370843 B CN112370843 B CN 112370843B CN 202011142795 A CN202011142795 A CN 202011142795A CN 112370843 B CN112370843 B CN 112370843B
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- 238000005406 washing Methods 0.000 title claims abstract description 102
- 238000001914 filtration Methods 0.000 title claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 132
- 239000002002 slurry Substances 0.000 claims abstract description 104
- 238000000967 suction filtration Methods 0.000 claims abstract description 94
- 238000009826 distribution Methods 0.000 claims abstract description 87
- 230000007246 mechanism Effects 0.000 claims abstract description 59
- 238000007599 discharging Methods 0.000 claims abstract description 38
- 239000012065 filter cake Substances 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims description 45
- 238000003828 vacuum filtration Methods 0.000 claims description 39
- 239000003638 chemical reducing agent Substances 0.000 claims description 15
- 239000000126 substance Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 12
- 238000007790 scraping Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000011010 flushing procedure Methods 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 2
- 230000007306 turnover Effects 0.000 claims description 2
- 239000000047 product Substances 0.000 abstract description 21
- 238000000926 separation method Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 6
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 6
- 238000012824 chemical production Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 239000006210 lotion Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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-
- 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
- B01D29/13—Supported filter elements
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a closed continuous filtering and washing machine, and belongs to the technical field of pharmaceutical chemical production equipment. The device comprises a shell, a vacuum suction filter tank, a feeding and discharging assembly, a suction filter mechanism and a driving mechanism, wherein the vacuum suction filter tank is arranged to be of a rotary structure, rotation is realized through driving of the driving mechanism, a slurry distribution tank, a washing liquid distribution tank and a discharging scraper are arranged above the vacuum suction filter tank, the slurry distribution tank and the washing liquid distribution tank are communicated with a corresponding slurry inlet and a corresponding washing liquid inlet, an insoluble product filter cake formed in the vacuum suction filter tank during suction filtration can be removed through a scraper of the discharging scraper, the filter cake is maintained at a thinner thickness, suction filtration and separation effects of soluble products are guaranteed, continuous feeding of corresponding slurry and washing liquid is realized, and requirements of continuous operation are met. The closed continuous filter washing machine can perform continuous solid-liquid separation operation, improves the solid-liquid separation efficiency, and reduces the whole large-scale production cost.
Description
Technical Field
The invention belongs to the technical field of pharmaceutical chemical production equipment, and particularly relates to a closed continuous filtering and washing machine.
Background
At present, most of vacuum filters used for solid-liquid separation of insoluble products in chemical industry and medicine production adopt a vacuum suction filtration mode for separation, the separation effect is good, the powdery insoluble products can be obtained, the later crushing operation of insoluble product filter cakes is avoided, and the production process is greatly simplified.
However, most of the vacuum filters used for solid-liquid separation of insoluble products in the prior art are batch-type operation, and the main operation steps are as follows: firstly, quantitatively injecting the slurry containing insoluble products and soluble products into a machine body, cutting off the supply of the slurry, then carrying out suction filtration and washing, and finally scraping and collecting a filter cake formed by the insoluble products. In order to consider the overall production efficiency, the injection amount of each slurry is larger, the generated insoluble product filter cake is thicker, the further suction filtration efficiency and the solid-liquid separation efficiency are influenced, the overall large-scale production cost of the insoluble product is further influenced, and the suction filtration and separation effects of the soluble product cannot be ensured.
Disclosure of Invention
The invention aims to provide a closed continuous filtering washing machine, which can perform continuous solid-liquid separation operation, improve the solid-liquid separation efficiency and reduce the whole large-scale production cost.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a closed continuous filtering washer comprises a shell, a vacuum suction filter tank, a material inlet and outlet assembly, a suction filter mechanism and a driving mechanism, wherein the material inlet and outlet assembly and the vacuum suction filter tank are positioned in the shell, and the material inlet and outlet assembly is positioned above the vacuum suction filter tank; the suction filter 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 blade, a discharging shovel, a hollow groove, a slurry distribution groove and a washing liquid distribution groove, wherein the central disc fixing frame is fixed in the shell, the vacuum suction filter groove is positioned below the central disc fixing frame, and the discharging scraper blade, the slurry distribution groove and the washing liquid distribution groove are respectively connected with the central disc fixing frame; the slurry distribution groove and the washing liquid distribution groove are arranged around the center of the vacuum suction filtration groove along the radial direction, the slurry distribution groove and the washing liquid distribution groove are respectively connected with a corresponding slurry inlet and a washing liquid inlet, slurry uniformly flows into the vacuum suction filtration groove through the slurry distribution groove, and a cleaning area is formed through the washing liquid distribution groove so as to clean insoluble substances in the slurry; when a filter cake formed by insoluble substances in the vacuum filtration tank reaches a certain thickness, scraping the filter cake out of the vacuum filtration tank through an 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 suction filtration groove is connected with the suction filtration mechanism, and liquid in the vacuum suction filtration groove enters the suction filtration mechanism for suction filtration under the action of gravity.
As a preferred embodiment of the present invention, the vacuum filtration tank has a housing structure, and the upper flange of the vacuum filtration tank is provided with a filter cloth, a support net and a bracket, the support net is located on the bracket, and the filter cloth is located on the support net.
As another preferable mode of the invention, the slurry distribution groove is provided with one and three square slurry distribution grooves, and the slurry inlet are respectively connected with an external slurry supply device and a slurry supply device through an upper flange and a lower flange on the shell.
Preferably, the casing comprises a casing body, the casing body comprises a lower sealing head, a lower cylinder, an upper cylinder and an upper sealing head from bottom to top, a supporting structure is arranged below the casing body, an upper machine seal and a lower machine seal are respectively arranged at the top and the bottom of the casing body, the upper machine seal is used for sealing between the casing and the driving mechanism, and the lower machine seal is used for sealing between the casing and the suction filtration mechanism; and the shell main body is also provided with a manhole and a solid discharge hole, and the solid discharge hole is arranged at the shell main body below the corresponding position of the discharging scraper and the discharging shovel.
Further preferably, the lower seal head, the lower cylinder, the upper cylinder and the upper seal head are sequentially and fixedly connected together by welding, the supporting structure comprises a support and supporting legs, the top of the support is connected with the shell main 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 accumulated water 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 device immediately sends an alarm signal to the outside to prompt an operator to process in time; the shell body is also provided with a viewing mirror, an illuminating lamp, a vacuum pressure gauge, a safety access hole and a flushing pipe.
Further preferably, the main body structure of the slurry distribution groove and the washing liquid distribution groove is composed of a plurality of feeding shovels, each feeding shovel comprises a feeding shovel baffle, a feeding shovel lower shovel piece, feeding shovel sawteeth and a feeding square pipe, and tooth-shaped overflow ports are respectively distributed on the upper parts of the two side walls of each feeding shovel, which extend along the radial direction of the vacuum suction filter groove, and are used for guaranteeing that the slurry and the washing liquid are uniformly distributed along the radial direction of the vacuum suction filter groove.
Further preferably, the slurry distribution chute and the washing liquid distribution chute divide the vacuum suction filtration chute into six areas, the six areas are always in a negative pressure state for suction filtration operation, three areas perform washing operation while suction filtration, and the slurry distribution chute and the washing liquid distribution chute are respectively positioned at the junction of the two areas.
Still preferably, the suction filtration mechanism comprises a liquid outlet flange, a tetrafluoro sealing device, a lower machine seal, a central disc connecting flange and a suction filtration tube, wherein the central disc connecting flange is used for fixedly connecting the suction filtration mechanism with a vacuum suction filtration tank, the suction filtration mechanism is in sealing fit with the shell through the tetrafluoro sealing device, the tetrafluoro sealing device comprises a sheath and a tetrafluoro sleeve, the suction filtration tube stretches into the sheath, the tetrafluoro sealing device is in sealing connection with the suction filtration tube through the tetrafluoro sleeve, a flange for supporting the tetrafluoro sealing device is arranged at the lower end of the box body of the tetrafluoro sealing device, the liquid outlet flange is used for fixedly connecting the external liquid outlet collecting device, and the lower machine seal is used for connecting the shell with the tetrafluoro sealing device.
Further 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 disk connecting flange and a tetrafluoro oil seal, and is fixedly connected with the vacuum filtration tank through the upper central disk connecting flange, and the rotation of the vacuum filtration tank is realized through driving of the driving mechanism; the explosion-proof motor, the speed reducer and the solid shaft of the motor are sequentially connected in a transmission way, the explosion-proof motor and the speed reducer are arranged above the frame, and the part, in transmission connection with the explosion-proof motor, of the speed reducer is in sealing connection with the frame.
Further preferably, the discharge shovel comprises a discharge shovel main body, a discharge shovel supporting plate, a discharge shovel front bending plate and a discharge shovel tetrafluoro plate, wherein the discharge shovel supporting plate is positioned below the discharge shovel main body, and the discharge shovel tetrafluoro plate is positioned at the front end of the discharge shovel.
The working process of the closed continuous filtering washing machine is specifically described below, and the working process is as follows:
the invention provides a closed continuous filtering washing machine, wherein a vacuum suction filtering tank is arranged into a rotary structure, rotation is realized through driving of a driving mechanism, a slurry distribution tank, a washing liquid distribution tank and a discharging scraping plate are arranged above the vacuum suction filtering tank, the slurry distribution tank and the washing liquid distribution tank are communicated with corresponding slurry inlets and washing liquid inlets, the slurry inlets and the washing liquid inlets are connected with an external slurry supply device and a washing liquid supply device through an upper flange and a lower flange on a shell, and a discharging shovel is of a fixed structure, so that filter cakes of insoluble products formed on the vacuum suction filtering tank are continuously scraped and collected by the scraping plate, the filter cakes are maintained at a thinner thickness, suction filtering and separating effects of the soluble products are ensured, and corresponding slurry and washing liquid realize continuous feeding, thereby meeting the requirements of continuous operation.
During operation, the slurry is uniformly distributed on the vacuum suction filter tank through the slurry distribution tank, liquid in the slurry is removed through suction filtration, insoluble substances in the slurry are continuously remained on the upper part of the vacuum suction filter tank and pass through a cleaning area formed by the washing liquid distribution tank under the rotation of the vacuum suction filter tank so as to clean the insoluble substances, the purity of a product is ensured, and meanwhile, the slurry on the vacuum suction filter tank is always in a negative pressure suction filtration state, and liquid components in the slurry are continuously suction-filtered into a housing below the vacuum suction filter tank and are discharged through a suction filtration pipe. The feeding and discharging assembly is provided with 1 square uniform slurry distribution groove and 3 square uniform washing liquid distribution grooves which are radially arranged around the center of the vacuum suction filtration groove, the vacuum suction filtration groove is divided into six areas, and suction filtration operation is carried out in the six areas always under the negative pressure state. When the filter cake formed by the insoluble substances reaches a certain thickness, the filter cake contacts the bottom of the blanking scraper, is scraped out of the vacuum filtration groove by an inclined scraping surface at the lower end of the blanking scraper and falls into a solid outlet, and is collected by external equipment; in the process, the slurry is continuously fed and distributed, insoluble products are continuously scraped off and collected, the reduction of production efficiency caused by frequently opening a blanking valve in the traditional intermittent operation process is avoided, and large-scale production can be realized.
Compared with the prior art, the invention has the following beneficial technical effects:
(1) The vacuum suction filter tank is arranged into a rotary structure, the discharge shovel is of a fixed structure, so that a filter cake of insoluble products formed on the vacuum suction filter tank is continuously scraped and collected by the discharge shovel, the filter cake is maintained at a thinner thickness, the further suction filtration washing work is not influenced, and the continuous feeding of corresponding slurry and washing liquid is realized, so that the requirement of continuous operation is met. The liquid is subjected to gravity self-flow and vacuum suction filtration in the suction filtration pipe, so that the liquid discharge rate is greatly improved.
(2) Be equipped with 1 square even ground paste distributing groove and 3 square even lotion distributing grooves on the business turn over material subassembly, ground paste distributing groove and lotion distributing groove all radially arrange around the vacuum suction filtration groove center, divide into six regions with the vacuum suction filtration groove, six regions are in the suction filtration operation under the negative pressure state all the time, wherein have three non-adjacent regions to carry out the washing operation in the suction filtration, ground paste distributing groove and the position of washing liquid distributing groove are located the juncture of two regions respectively, can wash the operation to the material a lot of like this, improve the quality and the holistic work efficiency of material washing.
(3) The slurry distribution chute and the washing liquid distribution chute main body are composed of a feeding shovel, wherein the feeding shovel comprises a feeding shovel baffle, a feeding shovel lower shovel piece, feeding shovel sawteeth and a feeding square pipe, and tooth-shaped overflow ports are respectively distributed on the upper parts of the two side walls of each feeding shovel, which extend along the radial direction of the vacuum suction filter tank, and are used for guaranteeing that slurry and washing liquid are uniformly distributed along the radial direction of the vacuum suction filter tank. When the device works, the external slurry supply device and the washing liquid supply device supply slurry to the slurry distribution groove and the feeding square pipes in the washing liquid distribution groove through the corresponding slurry inlets and the washing liquid inlets, and when the slurry and the washing liquid in the square pipes are full, the slurry and the washing liquid overflow along the tooth-shaped overflow ports and are uniformly distributed in the radial direction of the vacuum suction filter tank, so that uniform distribution is completed.
(4) Different from the existing rotary table type filtering and washing machine, the suction filtration mechanism of the closed type continuous filtering and washing machine is arranged below the device, the driving mechanism is arranged above the device, and the washed liquid enters the suction filtration pipe in a manner of gravity self-flow and vacuum suction filtration in the vacuum suction filtration groove, and is discharged out of the device through the suction filtration pipe, so that the liquid discharge rate is greatly improved. The driving mechanism is convenient for sealing cooperation between all parts of the equipment, and the lifting mode of lifting the vacuum suction filter tank from the upper part is favorable for stabilizing by utilizing self gravity, so that the condition that the driving mechanism drives the vacuum suction filter tank to swing left and right in the rotating process is prevented, and the scraping knife is caused to scrape and collect unstably.
(5) The liquid level meter and the liquid level sensor are arranged below the inside of the shell, and the liquid level meter is used for displaying the accumulated water amount inside the shell in real time, so that excessive liquid is prevented from accumulating inside the shell, and adverse effects are caused on the device. 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 operators to process in time.
In summary, the closed continuous filter washing machine can perform continuous solid-liquid separation operation, improves the solid-liquid separation efficiency, and can reduce the whole large-scale production cost.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic view of a closed type continuous filtration washing machine according to the present invention;
fig. 2 is a schematic view mainly showing the structure of a housing in the present invention;
FIGS. 3 and 4 mainly show the schematic structural diagrams of the vacuum filtration tank in the invention;
FIGS. 5-8 are schematic views showing the structure of the feed and discharge assembly of the present invention;
FIG. 9 is a schematic diagram mainly showing the structure of the suction filtration mechanism in the present invention;
FIG. 10 is a schematic view mainly showing the structure of the driving mechanism in the present invention;
in the figure:
1. a housing; 2. a vacuum filtration tank; 3. a feeding and discharging assembly; 4. a suction filtration mechanism; 5. a driving mechanism; 11. sealing by a machine; 12. a manhole; 13. an upper end enclosure; 14. an upper flange; 15. an upper cylinder; 16. a lower flange; 17. a lower cylinder; 18. a connecting pipe flange; 19. a solid discharge port; 110. a lower end enclosure; 111. a level gauge and a level sensor; 112. sealing by a machine; 113. a flushing pipe; 114. a support; 115. a support leg; 21. a flange on the housing; 22. a housing edge flange; 23. cleaning a discharge baffle assembly; 24. a housing lower flange; 31. a central disk holder; 32. a blanking scraper; 33. a discharging shovel; 331. a discharge shovel support plate; 332. a front bending plate of the discharging shovel; 333. a discharge shovel body; 334. a discharge shovel tetrafluoro plate; 34. a hollow groove; 35. a feed shovel; 351. a feed shovel baffle; 352. a feed shovel lower shovel member; 353. feeding shovel saw teeth; 354. a square feeding pipe; 41. a liquid outlet flange; 42. a sheath; 43. a tetrafluoro sleeve; 44. sealing by a machine; 45. a central disk connecting flange; 46. a suction filtration 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. an upper center plate connecting flange; 58. and (3) a tetrafluoro oil seal.
Detailed Description
The invention provides a closed type continuous filtering washing machine, and in order to make the advantages and the technical scheme of the invention clearer and more definite, the invention is described in detail below with reference to specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising", etc. will be understood to include the stated component or section without excluding other components or sections.
Spatially relative terms, such as "below," "beneath," "lower," "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's relationship in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the article in use or operation in addition to the orientation depicted in the figures. For example, if the article in the figures is 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" may encompass both a direction of below and a direction of above. Other orientations of the component (90 degrees or other) are possible and the spatially relative descriptors used herein interpreted accordingly.
The invention discloses a closed continuous filtering washing machine shown in fig. 1, which comprises a shell 1, a vacuum filtration tank 2, a material inlet and outlet assembly 3, a suction filtration mechanism 4 and a driving mechanism 5, wherein the material inlet and outlet assembly 3 and the vacuum filtration tank 2 are positioned in the shell 1, the material inlet and outlet assembly is positioned above the vacuum filtration tank, the suction filtration mechanism is positioned below the shell, and the driving mechanism is positioned above the shell.
As shown in fig. 2, the above-mentioned casing 1 includes a casing main body portion, which is formed by fixedly connecting an upper sealing head 13, an upper cylinder 15, a lower cylinder 17 and a lower sealing head 110 in sequence through welding, and includes an upper machine seal 11, a manhole 12, an upper flange 14, a lower flange 16, a solid discharge port 19, a lower machine seal 112, a support 114 and a supporting leg 115, wherein the upper machine seal 11 is used for sealing between the casing 1 and a driving mechanism, and the lower machine seal 112 is used for connecting between the casing and a suction filtration tube. The solid discharge port 19 is preferably disposed at the housing body below the above-mentioned discharging scraper and discharge shovel, and the purpose of this design is: the filter cake on the vacuum suction filter tank is prevented from being too thick to influence the suction filtration washing efficiency.
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 accumulated water 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 immediately sends an alarm signal to the outside to prompt an operator to process in time; the shell body is also provided with a sight glass, an illuminating lamp, a vacuum pressure gauge, a safety access hole and a flushing pipe 113, wherein the flushing pipe 113 is used for flushing the closed continuous filtering washer.
As a main innovation point of the present invention, as shown in fig. 3 and 4, the vacuum filtration tank is designed as a rotary structure, and is driven by a driving mechanism to continuously rotate in a shell, and comprises an upper shell flange 21, a shell side flange 22, a cleaning discharging baffle assembly 23 and a lower shell flange 24, wherein the upper flange of the vacuum filtration tank is provided with a filter cloth, a supporting net and a bracket. The invention creatively sets the vacuum filtration tank as a rotary structure, and the scraper is of a fixed structure, so that the filter cake of insoluble products formed on the vacuum filtration tank is continuously scraped and collected by the scraper, the filter cake is maintained at a thinner thickness, the further suction filtration washing work is not influenced, and the corresponding slurry and washing liquid realize continuous feeding, thereby meeting the requirements of continuous operation.
As shown in fig. 5 to 8, the feeding and discharging assembly 3 comprises a central disc fixing frame 31, a discharging scraper blade 32, a discharging shovel 33, a hollow groove 34, a slurry distribution groove and a washing liquid distribution groove, wherein the central disc fixing frame 31 is fixed in a shell, the vacuum suction filter groove is positioned below the central disc fixing frame, the discharging scraper blade 32, the slurry distribution groove and the washing liquid distribution groove are respectively connected with the central disc fixing frame 31, the slurry distribution groove and the washing liquid distribution groove are arranged around the center of the vacuum suction filter groove along the radial direction, the slurry distribution groove and the washing liquid distribution groove are respectively connected with a corresponding slurry inlet and a corresponding washing liquid inlet, the slurry uniformly flows into the vacuum suction filter groove through the slurry distribution groove, and a washing area is formed through the washing liquid distribution groove so as to wash insoluble substances in the slurry; when the 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 an inclined scraping surface at the lower end of the blanking scraper.
The slurry distribution chute and the washing liquid distribution chute main body are composed of a feeding shovel 35, the feeding shovel 35 comprises a feeding shovel baffle 351, a feeding shovel lower shovel member 352, feeding shovel sawteeth 353 and a feeding square pipe 354, and tooth-shaped overflow ports are respectively distributed on the upper parts of the two side walls of each feeding shovel, which extend along the radial direction of the vacuum suction filter tank, and are used for guaranteeing that the slurry and the washing liquid are uniformly distributed along the radial direction of the vacuum suction filter tank. When the device works, the external slurry supply device and the washing liquid supply device supply slurry to the slurry distribution groove and the feeding square pipes in the washing liquid distribution groove through the corresponding slurry inlets and the washing liquid inlets, and when the slurry and the washing liquid in the square pipes are full, the slurry and the washing liquid overflow along the tooth-shaped overflow ports and are uniformly distributed in the radial direction of the vacuum suction filter tank, so that uniform distribution is completed.
Preferably, the feeding and discharging assembly is provided with 1 square uniform slurry distribution groove and 3 square uniform washing liquid distribution grooves, the slurry distribution groove and the 3 washing liquid distribution grooves are radially arranged around the center of the vacuum suction filtration groove, the vacuum suction filtration groove is divided into six areas, the six areas are always in a negative pressure state for suction filtration operation, three areas are used for washing operation while suction filtration is carried out, the slurry distribution groove and the washing liquid distribution groove are respectively located at the junction of the two areas, so that the material can be washed repeatedly, and the material washing quality and the whole working efficiency are improved.
The discharge shovel comprises a discharge shovel main body 333, a discharge shovel supporting plate 331, a discharge shovel front bending plate 332 and a discharge shovel tetrafluoro plate 334, wherein the discharge shovel supporting plate is positioned below the discharge shovel main body, and the discharge shovel tetrafluoro plate is positioned at the front end of the discharge shovel.
As shown in fig. 9, the suction filtration mechanism comprises a liquid outlet flange 41, a sheath 42, a tetrafluoro sleeve 43, a lower machine seal 44, a central disc connecting flange 45 and a suction filtration pipe 46, wherein the central disc connecting flange is used for fixedly connecting the suction filtration mechanism with a vacuum suction filtration tank, the suction filtration mechanism is in sealing fit with a shell through a tetrafluoro sealing device, the tetrafluoro sealing device comprises the sheath 42 and the tetrafluoro sleeve 43, the suction filtration pipe extends into the sheath of the tetrafluoro sealing device, the tetrafluoro sealing device is in sealing connection with the suction filtration pipe through the tetrafluoro sleeve, the lower end of a box body of the tetrafluoro sealing device is provided with a flange for supporting the sealing device, the lower end of the suction filtration mechanism is provided with the liquid outlet flange which is used for fixedly connecting the outer liquid outlet collecting device, and the lower machine seal is used for connecting the shell with the tetrafluoro sealing device.
Furthermore, the liquid enters the suction filtration tube in a mode of gravity self-flowing and vacuum suction filtration in the vacuum suction filtration groove, and is discharged out of the device through the suction filtration tube, so that the liquid discharge rate is greatly improved.
As shown in fig. 10, 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 housing 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 center plate connecting flange, the rotation of the vacuum filtration tank is realized through the driving mechanism, a slurry distribution groove, a washing liquid distribution groove and a discharging scraper are arranged above the vacuum filtration tank, the slurry distribution groove and the washing liquid distribution 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 mode, the explosion-proof motor and the speed reducer are arranged above the frame, and the part, in transmission connection with the explosion-proof motor, of the speed reducer is connected with the frame in a sealing mode. Further 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, during operation, 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 part of the vacuum filtration tank, and the insoluble substances are cleaned through a cleaning area formed by the washing liquid distribution tank under the rotation of the vacuum filtration tank, so that the purity of a product is ensured.
The working process of the closed continuous filtering washing machine is described as follows:
the method comprises the following specific steps:
the slurry is uniformly distributed on the vacuum suction filter tank through the slurry distribution tank, liquid in the slurry is removed through suction filtration, insoluble substances in the slurry are continuously remained at the upper part of the vacuum suction filter tank and pass through a cleaning area formed by the washing liquid distribution tank under the rotation of the vacuum suction filter tank so as to clean the insoluble substances, the purity of a product is ensured, and meanwhile, the slurry on the vacuum suction filter tank is always in a negative pressure suction filtration state, and liquid components in the slurry are continuously sucked into a housing below the vacuum suction filter tank and are discharged through a suction filtration pipe;
the feeding and discharging assembly is provided with 1 square uniform slurry distribution groove and 3 square uniform washing liquid distribution grooves which are radially arranged around the center of the vacuum suction filtration groove, the vacuum suction filtration groove is divided into six areas, and suction filtration operation is carried out in the six areas always under the negative pressure state. When the filter cake formed by the insoluble substances reaches a certain thickness, the filter cake contacts the bottom of the blanking scraper, is scraped out of the vacuum filtration groove by an inclined scraping surface at the lower end of the blanking scraper and falls into a solid outlet, and is collected by external equipment;
in the process, the slurry is continuously fed and distributed, insoluble products are continuously scraped off and collected, the reduction of production efficiency caused by frequently opening a blanking valve in the traditional intermittent operation process is avoided, and large-scale production can be realized.
The parts not described in the invention can be realized by referring to the prior art.
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 pump tank, feed and discharge assembly, pump filtration mechanism, drive mechanism, upper seal, manhole, etc. are used more herein, the use of other terms is not precluded and is merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.
It should be further understood that the specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (1)
1. The utility model provides a closed continuous filtration washing machine, its includes casing, vacuum filtration groove, business turn over material subassembly, suction filtration mechanism and actuating mechanism, its characterized in that:
the material inlet and outlet assembly and the vacuum filtration tank are positioned in the shell, and the material inlet and outlet assembly is positioned above the vacuum filtration tank; the suction filter 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 blade, a discharging shovel, a hollow groove, a slurry distribution groove and a washing liquid distribution groove, wherein the central disc fixing frame is fixed in the shell, the vacuum suction filter groove is positioned below the central disc fixing frame, and the discharging scraper blade, the slurry distribution groove and the washing liquid distribution groove are respectively connected with the central disc fixing frame; the slurry distribution groove and the washing liquid distribution groove are arranged around the center of the vacuum suction filtration groove along the radial direction, the slurry distribution groove and the washing liquid distribution groove are respectively connected with a corresponding slurry inlet and a washing liquid inlet, slurry uniformly flows into the vacuum suction filtration groove through the slurry distribution groove, and a cleaning area is formed through the washing liquid distribution groove so as to clean insoluble substances in the slurry; when a filter cake formed by insoluble substances in the vacuum filtration tank reaches a certain thickness, scraping the filter cake out of the vacuum filtration tank through an 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 suction filtration groove is connected with the suction filtration mechanism, and liquid in the vacuum suction filtration groove enters the suction filtration mechanism for suction filtration under the action of gravity;
the vacuum filtration tank is of a housing structure, the upper flange of the vacuum filtration tank is provided with 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 slurry distribution groove is provided with one square washing liquid distribution groove, three square washing liquid distribution grooves are provided, 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;
the main structures of the slurry distribution chute and the washing liquid distribution chute are composed of a plurality of feeding shovel, each feeding shovel comprises a feeding shovel baffle, a feeding shovel lower shovel piece, feeding shovel sawteeth and a feeding square pipe, and tooth-shaped overflow ports are respectively arranged on the upper parts of the two side walls of each feeding shovel, which extend along the radial direction of the vacuum suction filtration chute, and are used for ensuring that the slurry and the washing liquid are uniformly distributed along the radial direction of the vacuum suction filtration chute;
the slurry distribution chute and the washing liquid distribution chute divide the vacuum suction filtration chute into six areas, the six areas are always in a negative pressure state for suction filtration operation, wherein three areas perform washing operation while suction filtration, and the slurry distribution chute and the washing liquid distribution chute are respectively positioned at the junction of the two areas;
the shell comprises a shell body, wherein the shell body comprises a lower sealing head, a lower cylinder body, an upper cylinder body and an upper sealing head 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 between the shell and the driving mechanism, and the lower machine seal is used for sealing between the shell and the suction filtration mechanism; the shell main body is also provided with a manhole and a solid discharge hole, and the solid discharge hole is arranged at the shell main body below the blanking scraper and the discharge shovel;
the lower seal head, the lower cylinder body, the upper cylinder body and the upper seal head are sequentially and fixedly connected together by welding, the supporting structure comprises a support and supporting legs, the top of the support is connected with the shell main 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 accumulated water 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 immediately sends an alarm signal to the outside to prompt an operator to process in time; the shell main body is also provided with a sight glass, an illuminating lamp, a vacuum pressure gauge, a safety access hole and a flushing pipe;
the suction filtration mechanism comprises a liquid outlet flange, a tetrafluoro sealing device, a lower machine seal, a central disc connecting flange and a suction filtration pipe, wherein the central disc connecting flange is used for fixedly connecting the suction filtration mechanism with a vacuum suction filtration groove, the suction filtration mechanism is in sealing fit with the shell through the tetrafluoro sealing device, the tetrafluoro sealing device comprises a sheath and a tetrafluoro sleeve, the suction filtration pipe extends into the sheath, the tetrafluoro sealing device is in sealing connection with the suction filtration pipe through the tetrafluoro sleeve, the lower end of a box body of the tetrafluoro sealing device is provided with a flange for supporting the tetrafluoro sealing device, the liquid outlet flange is used for fixedly connecting the external liquid outlet collection device, and the lower machine seal is used for connecting the shell with the tetrafluoro sealing device;
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 disk connecting flange and a tetrafluoro oil seal, and is fixedly connected with the vacuum filtration tank through the upper central disk connecting flange and driven by the driving mechanism to realize the rotation of the vacuum filtration tank; a slurry distribution groove, a washing liquid distribution groove and a discharging scraper are arranged above the vacuum suction filter groove, the slurry distribution groove and the washing liquid distribution groove are communicated with a corresponding slurry inlet and a 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 a solid shaft of the motor are sequentially in transmission connection, the explosion-proof motor and the speed reducer are arranged above the frame, and the part, in transmission connection with the explosion-proof motor, of the speed reducer is in sealing connection with the frame;
the discharging shovel comprises a discharging shovel main body, a discharging shovel supporting plate, a discharging shovel front bending plate and a discharging shovel tetrafluoro plate, wherein the discharging shovel supporting plate is positioned below the discharging shovel main body, and the discharging shovel tetrafluoro plate is positioned at the front end of the discharging shovel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011142795.1A CN112370843B (en) | 2020-10-23 | 2020-10-23 | Closed continuous filtering washing machine |
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| CN202011142795.1A CN112370843B (en) | 2020-10-23 | 2020-10-23 | Closed continuous filtering washing machine |
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| CN112370843A CN112370843A (en) | 2021-02-19 |
| CN112370843B true CN112370843B (en) | 2023-04-21 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090076768A (en) * | 2008-01-08 | 2009-07-13 | 히다찌 겐끼 가부시키가이샤 | Construction equipment |
| CN103638734A (en) * | 2013-12-30 | 2014-03-19 | 攀枝花东方钛业有限公司 | Rotating-platform vacuum filtering machine and filtering method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4278035A (en) * | 1980-03-14 | 1981-07-14 | The United States Of America As Represented By The Secretary Of Agriculture | Machine for planting containerized tree and shrub seedlings |
| CN101816853B (en) * | 2010-04-30 | 2011-12-07 | 中国海洋石油总公司 | Large rotary-disc vacuum filter |
| CN108176118B (en) * | 2018-02-26 | 2023-12-05 | 无锡华盛橡胶新材料科技股份有限公司 | Vacuum filter for insoluble sulfur solid-liquid separation |
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2020
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090076768A (en) * | 2008-01-08 | 2009-07-13 | 히다찌 겐끼 가부시키가이샤 | Construction equipment |
| CN103638734A (en) * | 2013-12-30 | 2014-03-19 | 攀枝花东方钛业有限公司 | Rotating-platform vacuum filtering machine and filtering method |
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