CN108176118B - Vacuum filter for insoluble sulfur solid-liquid separation - Google Patents
Vacuum filter for insoluble sulfur solid-liquid separation Download PDFInfo
- Publication number
- CN108176118B CN108176118B CN201810162594.4A CN201810162594A CN108176118B CN 108176118 B CN108176118 B CN 108176118B CN 201810162594 A CN201810162594 A CN 201810162594A CN 108176118 B CN108176118 B CN 108176118B
- Authority
- CN
- China
- Prior art keywords
- suction filtration
- solid
- shell
- filter
- insoluble sulfur
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000007788 liquid Substances 0.000 title claims abstract description 49
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 41
- 239000011593 sulfur Substances 0.000 title claims abstract description 41
- 238000000926 separation method Methods 0.000 title claims abstract description 37
- 238000000967 suction filtration Methods 0.000 claims abstract description 67
- 238000009826 distribution Methods 0.000 claims abstract description 41
- 239000002002 slurry Substances 0.000 claims abstract description 35
- 238000005406 washing Methods 0.000 claims abstract description 25
- 239000012452 mother liquor Substances 0.000 claims abstract description 12
- 239000007787 solid Substances 0.000 claims abstract description 10
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 239000006210 lotion Substances 0.000 claims abstract description 4
- 230000008676 import Effects 0.000 claims abstract 5
- 238000007789 sealing Methods 0.000 claims description 26
- 239000003638 chemical reducing agent Substances 0.000 claims description 20
- 239000000945 filler Substances 0.000 claims description 13
- 239000011521 glass Substances 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000011010 flushing procedure Methods 0.000 claims description 9
- 238000012856 packing Methods 0.000 claims description 6
- 238000007790 scraping Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000005864 Sulphur Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 11
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 24
- 239000012065 filter cake Substances 0.000 description 11
- 239000007789 gas Substances 0.000 description 11
- 239000004744 fabric Substances 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
- B01D33/17—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with rotary filtering tables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
- B01D33/466—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
- B01D33/82—Means for pressure distribution
Abstract
The invention provides a vacuum filter for solid-liquid separation of insoluble sulfur, which can improve the suction filtration effect and the solid-liquid separation efficiency, reduce the whole large-scale investment cost and the generation cost of the insoluble sulfur, and ensure the suction filtration and separation effects of the soluble sulfur. This vacuum filter, including casing, unloading scraper blade, actuating mechanism and suction filtration mechanism, be equipped with ground paste import, lotion import, balanced gas inlet, solid outlet and mother liquor suction filtration mouth on the casing, suction filtration mechanism includes suction filtration pipe, filter disc and housing, and the filter disc sealed lid closes in the upper end opening of housing in order to form the compartment, and the compartment is wholly airtight in the casing, and separation compartment, other end connection mother liquor suction filtration mouth are stretched into to suction filtration pipe one end, its characterized in that: the filter disc is driven by a driving mechanism to realize rotation, and a slurry distribution groove, a washing liquid distribution groove and a discharging scraper are arranged above the filter disc and are communicated with a slurry inlet and a washing liquid inlet respectively.
Description
Technical Field
The invention relates to process equipment for preparing insoluble sulfur, in particular to a vacuum filter for solid-liquid separation of insoluble sulfur.
Background
The vacuum filter for solid-liquid separation of insoluble sulfur is used for solid-liquid separation of insoluble sulfur, carbon disulfide liquid and soluble sulfur dissolved in the carbon disulfide liquid, and the vacuum filter adopts a vacuum suction filtration mode for separation, so that the separation effect is good, powdery insoluble sulfur can be obtained, the later crushing operation of an insoluble sulfur filter cake is avoided, and the process can be simplified.
The existing vacuum filter for solid-liquid separation of insoluble sulfur adopts intermittent operation, firstly, slurry containing insoluble sulfur, soluble sulfur and carbon disulfide is quantitatively injected into a machine body, then slurry supply is disconnected, suction filtration is carried out, and finally, filter cakes formed by the insoluble sulfur are scraped and collected. In order to consider the overall process efficiency, the injection amount of slurry is larger every time, the generated insoluble sulfur has thicker filter cake, and the thicker filter cake not only affects the suction filtration efficiency and the solid-liquid separation efficiency, but also affects the overall large-scale investment cost and the generation cost of the insoluble sulfur, and the suction filtration and separation effects of the soluble sulfur cannot be ensured.
Disclosure of Invention
Aiming at the technical problems of poor suction filtration effect, high large-scale investment cost, high production cost and poor separation effect of the soluble sulfur of the existing vacuum filter for solid-liquid separation of the insoluble sulfur, the invention provides the vacuum filter for solid-liquid separation of the insoluble sulfur, which can improve the suction filtration effect and the solid-liquid separation efficiency, reduce the whole large-scale investment cost and the generation cost of the insoluble sulfur and ensure the suction filtration and separation effects of the soluble sulfur.
The technical scheme is that the vacuum filter for insoluble sulfur solid-liquid separation comprises a shell, a discharging scraper, a driving mechanism and a suction filtration mechanism, wherein a slurry inlet, a washing liquid inlet, a balance gas inlet, a solid outlet and a mother liquor suction filtration port are formed in the shell, the suction filtration mechanism comprises a suction filtration pipe, a filtration disc and a housing, the filtration disc is sealed to the upper end opening of the housing to form a separation chamber, the separation chamber is wholly sealed in the shell, one end of the suction filtration pipe extends into the separation chamber, and the other end of the suction filtration pipe is connected with the mother liquor suction filtration port, and the vacuum filter is characterized in that: the filter disc is driven by the driving mechanism to realize rotation, a slurry distribution groove, a washing liquid distribution groove and a discharging scraper are arranged above the filter disc, and the slurry distribution groove and the washing liquid distribution groove are communicated with the slurry inlet and the washing liquid inlet correspondingly.
Further, the slurry distribution tanks are 1, the washing liquid distribution tanks are 1-3, and the slurry distribution tanks and the 1-3 washing liquid distribution tanks are arranged around the center of the filter disc.
Furthermore, the slurry distribution groove and/or the washing liquid distribution groove are respectively provided with tooth-shaped overflow ports along the upper parts of the two side walls extending along the radial direction of the filter disc.
Further, the solid outlet is arranged below the blanking scraper.
Further, the suction filtration pipe with the mother liquor suction filtration mouth of casing passes through packing seal box sealing fit, packing seal box includes box body, sealing filler, shrouding and suction filtration joint, the suction filtration pipe stretches into in the box body, the box body with fill between the suction filtration pipe has sealing filler, the box body lower extreme protruding support sealing filler's flange, the box body upper end covers has the pressure equipment sealing filler's clamping ring, the suction filtration joint tip is equipped with the skirt, the skirt cover is located the clamping ring periphery and with the box body is located the position of clamping ring axle box or the position sealing fixation that the casing is located mother liquor suction filtration mouth circumference, the suction filtration joint with the suction filtration pipe intercommunication.
Further, a fixing frame is fixed in the shell and positioned above the filter disc, and the blanking scraping plate, the slurry distribution chute and the washing liquid distribution chute are respectively and fixedly connected with the fixing frame.
Further, the shell comprises an upper shell and a lower shell, and the joint of the upper shell and the lower shell is connected through a flange structure.
Further, the driving mechanism comprises a motor and a speed reducer, the motor, the speed reducer and the housing are sequentially connected in a transmission mode, the speed reducer is arranged below the inside of the shell, and the part, connected with the motor in a transmission mode, of the speed reducer is in sealing connection with the shell.
Furthermore, the housing is of a tapered structure which tapers from top to bottom, and the speed reducer is in transmission connection with the lower end of the housing.
Further, the shell is also provided with a sight glass, an illuminating lamp, a vacuum pressure gauge, a safety access hole and a flushing pipe, and the flushing pipe is used for flushing the sight glass.
Further, 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 explosion-proof lamp and the sight glass are both provided with two and symmetrically fixed on two sides of the upper part of the shell, and one explosion-proof lamp and one sight glass are positioned above the solid outlet.
Furthermore, the contact parts of the vacuum filter with slurry, balance gas and washing liquid are made of stainless steel.
Further, the filter disc is composed of filter cloth, a supporting net and a bracket which are arranged from top to bottom, the filter cloth is pressed on the supporting net and the bracket through pressing strips, the supporting net is a punching net or a strip-shaped net, and the filter cloth is formed by combining chemical fiber cloth, metal or metal sintering nets.
According to the invention, the filter disc of the suction filtration mechanism is arranged to be of a rotary structure, namely, the filter disc is driven by the driving mechanism to realize rotation, and the scraper is of a fixed structure, so that the filter cake of insoluble sulfur formed on the filter disc can be continuously scraped and collected by the scraper, the filter cake of the insoluble sulfur can maintain a thinner thickness, the corresponding slurry and the washing liquid can realize continuous feeding, the repeated filling or collection of balance gas and the loss of carbon disulfide along with the collection of the balance gas are avoided, the suction filtration effect and the solid-liquid separation efficiency are further improved, the whole large-scale investment cost and the generation cost of the insoluble sulfur are reduced, the thinner filter cake thickness is ensured, and the suction filtration and separation effects of the soluble sulfur are ensured.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the structure of the dunnage seal box of the present invention.
Detailed Description
As shown in fig. 1 and 2, a vacuum filter for solid-liquid separation of insoluble sulfur comprises a shell 1, a discharging scraper 3, a driving mechanism and a suction filtration mechanism, wherein a slurry joint 4, a lotion joint 5, a balance gas joint 6, a fixed joint 7 and a suction filtration joint 8 which respectively correspond to a slurry inlet, a lotion inlet, a balance gas inlet, a solid outlet and a mother liquor suction filtration port are arranged on the shell 1, the suction filtration mechanism comprises a suction filtration tube 9, a filtration disc 10, a housing 11 and a vacuum pump (the vacuum pump is not shown in the figure and is the prior art), the filtration disc 10 is sealed at the upper end opening of the housing 11 to form a separation chamber 12, the separation chamber 12 is integrally sealed in the shell 1, one end of the suction filtration tube 9 extends into the separation chamber 12, the other end is connected with the suction filtration port, the driving mechanism is in transmission connection with the lower end of the housing 11 to drive the filtration disc 10 to rotate, a slurry distribution chute 13, a scraper 14 and a discharging material distribution chute 14 are arranged above the filtration disc 10, 1 to 3 slurry distribution chute 13 and 1 to 3 distribution chute 13 are arranged, the slurry distribution chute 13 and 1 to 3 distribution chute 14 are respectively connected with the corresponding slurry inlet chute 15 through the center of the distribution chute 14, and the corresponding slurry inlet chute 15 is arranged in the distribution chute 15. The slurry is uniformly distributed on the filter disc 10, carbon disulfide and soluble sulfur dissolved in the carbon disulfide are removed through suction filtration, the insoluble sulfur is reserved at the upper part of the filter disc 10 and passes through a cleaning area formed by a washing liquid distribution groove 14 under the rotation of the filter disc 10 so as to clean the insoluble sulfur, the purity is ensured, the number of the washing liquid distribution groove 14 can be set according to actual requirements, when a filter cake formed by the insoluble sulfur reaches a certain thickness, the filter cake contacts with a blanking scraper, and the filter cake is scraped off through an inclined scraping surface at the lower end of the blanking scraper and falls into a solid outlet, so that the filter cake is collected; in the process, the slurry is continuously fed, the insoluble sulfur is continuously scraped and collected, and production efficiency reduction caused by frequently opening a blanking valve, repeatedly filling and collecting balance gas (nitrogen and carbon disulfide gas) in the traditional intermittent operation process is avoided, so that large-scale production is realized, and nitrogen escape and nitrogen usage increase caused by frequently opening the blanking valve are avoided.
The upper parts of the two side walls of the slurry distribution groove 13 and/or the washing liquid distribution groove 14 extending along the radial direction of the filter disc 10 are respectively provided with tooth-shaped overflow ports 16, so that uneven distribution caused by non-horizontal overflow parts at the top of the side walls is prevented, and uniform distribution along the radial direction of the filter disc 10 is ensured.
The suction filtration pipe 9 is matched with a mother liquor suction filtration port of the shell 1 in a sealing way through a packing sealing box, the packing sealing box comprises a box body 17, sealing filler 18, a sealing plate and a suction filtration joint, the suction filtration pipe 9 stretches into the box body 17, the sealing filler 18 is filled between the box body 17 and the suction filtration pipe 9, a flange for supporting the sealing filler 18 is convexly arranged at the lower end of the box body 17, a compression ring 19 for pressing the sealing filler 18 is covered on the upper end of the box body 17, a skirt 20 is arranged at the end part of the suction filtration joint, the skirt 20 is sleeved on the periphery of the compression ring 19 and is sealed and fixed with the box body 17 at the position of a compression ring 19 axle box, the suction filtration joint is communicated with the suction filtration pipe 9, dynamic sealing is realized between the suction filtration pipe 9 and the box body 17 through the sealing filler 18, the skirt 20 of the suction filtration joint is statically sealed with the box body 17, the sealing effect of the joint is further effectively ensured, balance gas escape is prevented, and the explosion-proof performance of the device can be improved due to the wider gas explosion limit range.
A fixing frame is fixed in the shell 1 and is positioned above the filter disc 10, and the blanking scraping plate, the slurry distribution chute and the washing liquid distribution chute 14 are respectively and fixedly connected with the fixing frame.
The shell 1 comprises an upper shell 1a and a lower shell 1b, and the joint of the upper shell 1a and the lower shell 1b is connected through a flange structure 2; the driving mechanism comprises a motor 26 and a speed reducer 27, the motor 26, the speed reducer 27 and the housing 11 are sequentially connected in a transmission mode, the speed reducer is arranged below the inside of the shell 1, the part, connected with the motor in a transmission mode, of the speed reducer is connected with the shell 1 in a sealing mode, and the driving mechanism is arranged below the filter disc 10, so that maintenance of the filter disc 10 is facilitated.
The housing 11 has a tapered structure from top to bottom, so that the filtrate can be collected conveniently.
The shell 1 is also provided with a sight glass 21, an illuminating lamp 22, a vacuum pressure gauge 23, a safety access hole 24 and a flushing pipe 25, wherein the flushing pipe 25 is used for flushing the sight glass 21; the motor is an explosion-proof variable frequency motor, the speed reducer is a speed reducer for a disc feeder, and the illuminating lamp 22 is an explosion-proof lamp; the explosion-proof lamp and the sight glass 21 are both provided with two and symmetrically fixed on two sides of the upper part of the shell 1, wherein one explosion-proof lamp and one sight glass 21 are positioned above the solid outlet.
The contact parts of the vacuum filter with the slurry, the balance gas and the washing liquid are made of stainless steel.
The filter disc consists of filter cloth, a supporting net and a bracket which are arranged from top to bottom, wherein the filter cloth is pressed on the supporting net and the bracket through pressing strips, the supporting net is a punching net or a strip net, and the filter cloth is a combination of chemical fiber cloth, metal or metal sintering net.
In fig. 1, 28 is a drain port provided at the lower portion of the lower housing, and 29 is a support leg for removing condensed carbon disulfide.
Claims (7)
1. A vacuum filter for insoluble sulphur solid-liquid separation, including casing, unloading scraper blade, actuating mechanism and suction filtration mechanism, be equipped with ground paste import, lotion import, balanced gas import, solid outlet and mother liquor suction filtration mouth on the casing, suction filtration mechanism includes suction filtration pipe, filter disc and housing, the filter disc sealed cover in the upper end opening of housing is in order to form the compartment, the compartment is wholly airtight in the casing, suction filtration pipe one end stretches into the compartment, the other end is connected mother liquor suction filtration mouth, its characterized in that: the filter disc is driven by the driving mechanism to realize rotation, a slurry distribution chute, a washing liquid distribution chute and the discharging scraper are arranged above the filter disc, and the slurry distribution chute and the washing liquid distribution chute are communicated with the slurry inlet and the washing liquid inlet correspondingly; the slurry distribution tanks are 1, the washing liquid distribution tanks are 1-3, and the slurry distribution tanks and 1-3 washing liquid distribution tanks are arranged around the center of the filter disc; the slurry distribution chute and/or the washing liquid distribution chute are respectively provided with tooth-shaped overflow ports along the upper parts of the two side walls extending along the radial direction of the filter disc; and the solid outlet is arranged below the blanking scraper.
2. The vacuum filter for solid-liquid separation of insoluble sulfur according to claim 1, wherein: the suction filtration pipe with the mother liquor suction filtration mouth of casing passes through packing seal box sealing fit, packing seal box includes box body, sealing filler, shrouding and suction filtration joint, the suction filtration pipe stretches into in the box body, the box body with fill between the suction filtration pipe has sealing filler, the box body lower extreme is protruding to be equipped with the support sealing filler's flange, the box body upper end is equipped with the pressure ring of pressure equipment sealing filler, the suction filtration joint tip is equipped with the skirt, the skirt cover is located the clamping ring periphery and with the box body is located the position of clamping ring axle box or the position sealing fixation that the casing is located mother liquor suction filtration mouth circumference, the suction filtration joint with the suction filtration pipe intercommunication.
3. The vacuum filter for solid-liquid separation of insoluble sulfur according to claim 1, wherein: the shell is internally fixed with a fixing frame, the fixing frame is positioned above the filter disc, and the blanking scraping plate, the slurry distribution chute and the washing liquid distribution chute are respectively and fixedly connected with the fixing frame.
4. The vacuum filter for solid-liquid separation of insoluble sulfur according to claim 1, wherein: the shell comprises an upper shell and a lower shell, and the joint of the upper shell and the lower shell is connected through a flange structure;
the driving mechanism comprises a motor and a speed reducer, the motor, the speed reducer and the separation chamber are sequentially connected in a transmission mode, the speed reducer is arranged below the inside of the shell, and the part, connected with the motor in a transmission mode, of the speed reducer is connected with the shell in a sealing mode.
5. The vacuum filter for solid-liquid separation of insoluble sulfur as claimed in claim 4, wherein: the housing is of a tapered structure which tapers from top to bottom, and the speed reducer is in transmission connection with the lower end of the housing.
6. The vacuum filter for solid-liquid separation of insoluble sulfur as claimed in claim 4, wherein: the shell is also provided with a sight glass, an illuminating lamp, a vacuum pressure gauge, a safety access hole and a flushing pipe, and the flushing pipe is used for flushing the sight glass.
7. The vacuum filter for solid-liquid separation of insoluble sulfur of claim 6, wherein: 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 explosion-proof lamp and the sight glass are symmetrically fixed on two sides of the upper part of the shell, and one explosion-proof lamp and one sight glass are positioned above the solid outlet;
the contact parts of the vacuum filter with the slurry, the balance gas and the washing liquid are made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810162594.4A CN108176118B (en) | 2018-02-26 | 2018-02-26 | Vacuum filter for insoluble sulfur solid-liquid separation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810162594.4A CN108176118B (en) | 2018-02-26 | 2018-02-26 | Vacuum filter for insoluble sulfur solid-liquid separation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108176118A CN108176118A (en) | 2018-06-19 |
| CN108176118B true CN108176118B (en) | 2023-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810162594.4A Active CN108176118B (en) | 2018-02-26 | 2018-02-26 | Vacuum filter for insoluble sulfur solid-liquid separation |
Country Status (1)
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| CN (1) | CN108176118B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109896504A (en) * | 2019-04-11 | 2019-06-18 | 无锡华盛橡胶新材料科技股份有限公司 | For the continuous separation of wet production insoluble sulfur, dry system |
| CN109911864B (en) * | 2019-04-11 | 2023-09-01 | 无锡华盛橡胶新材料科技股份有限公司 | System for screening, crushing and deoiling for wet production of insoluble sulfur |
| CN109970033A (en) * | 2019-04-11 | 2019-07-05 | 无锡华盛橡胶新材料科技股份有限公司 | Separation of solid and liquid, the system of precipitation for the oil-filled insoluble sulfur of wet production |
| CN111773803A (en) * | 2020-06-18 | 2020-10-16 | 四川润邦利泰科技有限公司 | Automatic rapid solid-liquid separation device and application method |
| CN112370843B (en) * | 2020-10-23 | 2023-04-21 | 无锡市张华医药设备有限公司 | Closed continuous filtering washing machine |
| CN112371069B (en) * | 2020-10-23 | 2023-08-29 | 无锡市张华医药设备有限公司 | Continuous reaction, crystallization, filtration, washing and drying system |
| CN112973243B (en) * | 2021-03-04 | 2022-04-22 | 浙江环森环境科技有限公司 | Filtering device for industrial wastewater purification and use method thereof |
| CN115253457A (en) * | 2022-08-23 | 2022-11-01 | 三门峡义翔铝业有限公司 | Flat disc filter and filtering method thereof |
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