CN101732912A - Regeneration method of rubber belt type filter cloth for filtering red mud - Google Patents
Regeneration method of rubber belt type filter cloth for filtering red mud Download PDFInfo
- Publication number
- CN101732912A CN101732912A CN200910243358A CN200910243358A CN101732912A CN 101732912 A CN101732912 A CN 101732912A CN 200910243358 A CN200910243358 A CN 200910243358A CN 200910243358 A CN200910243358 A CN 200910243358A CN 101732912 A CN101732912 A CN 101732912A
- Authority
- CN
- China
- Prior art keywords
- filter cloth
- belt type
- rubber belt
- red mud
- regeneration
- 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.)
- Pending
Links
- 239000004744 fabric Substances 0.000 title claims abstract description 73
- 238000011069 regeneration method Methods 0.000 title claims abstract description 26
- 238000001914 filtration Methods 0.000 title claims abstract description 23
- 230000008929 regeneration Effects 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000011010 flushing procedure Methods 0.000 claims abstract description 15
- 239000003513 alkali Substances 0.000 claims abstract description 13
- 238000007598 dipping method Methods 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 238000009418 renovation Methods 0.000 claims description 13
- 238000005406 washing Methods 0.000 claims description 8
- 239000003518 caustics Substances 0.000 claims description 6
- 230000008439 repair process Effects 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000007654 immersion Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract 1
- 238000002791 soaking Methods 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 8
- 239000007788 liquid Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 229910001710 laterite Inorganic materials 0.000 description 4
- 239000011504 laterite Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 3
- 230000001172 regenerating effect Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910001679 gibbsite Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910001388 sodium aluminate Inorganic materials 0.000 description 1
Landscapes
- Filtering Materials (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a regeneration method of a rubber belt type filter cloth for filtering red mud, relating to a regeneration method of a rubber belt type filter cloth for filtering red mud in the production process of aluminum oxide, which is characterized in that in the regeneration process, filter cloth is flushed and soaked so as to regenerate by arranging a filter cloth flushing device and an alkali liquor soaking pool on a rubber belt type filter. By adopting the method, continuous regeneration of filter cloth of the filter can be efficiently realized, hardening of the filter cloth is prevented, long-term running of the filter is ensured and the production efficiency of aluminum oxide is enhanced efficiently.
Description
Technical field
A kind of renovation process of rubber belt type filter cloth for filtering red mud relates to a kind of method of regeneration of rubber belt type filter cloth for filtering red mud of aluminum oxide production process.
Technical background
In aluminum oxide production process, the red mud that utilizes rubber belt type filter to filter alumina producing is a kind of effective process.Because the instability of sodium aluminate solution very easily forms gibbsite on filter cloth, make the filter cloth knot hard, cause the filtering red mud difficulty, have a strong impact on and filter the cycle of operation, become the bottleneck that improves alumina producing efficient.
At present, the regeneration process of rubber belt type filter cloth normally adopts washes the regeneration of the filter cloth outside, can only rinse out filter cloth surface solid, but can't remove with inner solid matter for adhering to or be cemented on the filter cloth.
Summary of the invention
Purpose of the present invention is exactly the deficiency that exists at above-mentioned prior art, provide a kind of and can effectively carry out cyclic regeneration filter cloth, prevented that the filter cloth knot is hard, effectively prolonged the renovation process of the rubber belt type filter cloth for filtering red mud in filter long-play cycle.
The objective of the invention is to be achieved through the following technical solutions.
A kind of renovation process of rubber belt type filter cloth for filtering red mud is characterized in that its regenerative process is that filter cloth water flushing device and dipping by lye pond are being set on rubber belt type filter, filter cloth is washed and soaks regeneration.
The renovation process of a kind of rubber belt type filter cloth for filtering red mud of the present invention, the device of the filter cloth water flushing that it is characterized in that being provided with is after material is laid down on the filter cloth, inside and outside both sides at filter cloth all are provided with the hydroblasting device, by the water flushing in the interior outside, filter cloth are tentatively regenerated.
The renovation process of a kind of rubber belt type filter cloth for filtering red mud of the present invention, it is characterized in that the filter cloth after the dipping by lye pond that is provided with is to water flushing regeneration adopts alkali lye further to regenerate, the dipping by lye pond is arranged on the filter bottom, width is wider than filter cloth, makes filter cloth be immersed in all the time in the alkali lye pond in the running middle and lower part.
The renovation process of a kind of rubber belt type filter cloth for filtering red mud of the present invention is characterized in that its regenerative process is after carrying out the filtration washing red mud, carries out hot wash and dipping by lye to the filter cloth after the discharging; The hot wash regeneration of filter cloth, 60～100 ℃ of coolant-temperature gages; Filter cloth enters the immersion regeneration of dipping by lye pond after the hot wash, aqueous caustic concentration 100～450 grams per liters of alkali lye, and 70～90 ℃ of temperature, soak time are 2～20 minutes.
The renovation process of rubber belt type filter cloth for filtering red mud of the present invention, filter cloth water flushing facility and alkali liquid regeneration pond are being set on rubber belt type filter, effectively realized filter cloth cyclic regeneration, prevented that the filter cloth knot is hard, guarantee the filter long-play, improved the production efficiency of aluminium oxide.
The specific embodiment
A kind of renovation process of rubber belt type filter cloth for filtering red mud, its regenerative process is that filter cloth water flushing device and dipping by lye pond are being set on rubber belt type filter, the device of the filter cloth water flushing that is to be provided with is after material is laid down on the filter cloth, inside and outside both sides at filter cloth all are provided with the hydroblasting device, by the water flushing in the interior outside, filter cloth is tentatively regenerated.The dipping by lye pond that is provided with adopts alkali lye further to regenerate to the filter cloth that water washes after regenerating, and the dipping by lye pond is arranged on the filter bottom, and width is wider than filter cloth, makes filter cloth be immersed in all the time in the alkali lye pond in the running middle and lower part.
The red mud of alumina producing enters scrubbing section after separating in the Disengagement zone on the filter, adopt more than 60 ℃ hot water or more than 60 ℃, caustic sodium concentration is lower than the wash water washing of 10g/l; In filtration washing red mud process, the filter cloth after the discharging is carried out hot wash and dipping by lye cyclic regeneration; The hot wash regeneration of filter cloth, 60～100 ℃ of coolant-temperature gages; Filter cloth enters the continuous dipping regeneration of dipping by lye pond after the hot wash, aqueous caustic concentration 100～450 grams per liters of alkali lye, and 70～90 ℃ of temperature, soak time are 2～20 minutes.
Embodiment 1
The alumina laterite slip is sent into DU type rubber belt type filter filter, after the slip Separation of Solid and Liquid, to laterite washing, cleaning solution adopts 80～100 ℃ hot water to red mud with cleaning solution.In the filtering red mud process, filter cloth is carried out the processing of regenerating of hot wash and dipping by lye mode; The hot water that adopts 80～100 ℃ is to filter cloth washing; Filter cloth after the flushing enters the alkali liquid regeneration pond and carries out the regeneration of on-line continuous dipping by lye, aqueous caustic concentration 450～250 grams per liters, and 80～70 ℃ of temperature, soak time are 2 minutes.
Embodiment 2
The alumina laterite slip is sent into DU type rubber belt type filter filter, after the slip Separation of Solid and Liquid, to laterite washing, cleaning solution adopts 60～80 ℃ hot water to red mud with cleaning solution.In the filtering red mud process, filter cloth is carried out the processing of regenerating of hot wash and dipping by lye mode; The hot water that adopts 60～80 ℃ is to filter cloth washing; Filter cloth after the flushing enters the alkali liquid regeneration pond and carries out the regeneration of on-line continuous dipping by lye, aqueous caustic concentration 250～100 grams per liters, and 90～80 ℃ of temperature, soak time are 15 minutes.
Claims (4)
1. the renovation process of a rubber belt type filter cloth for filtering red mud is characterized in that its regenerative process is that filter cloth water flushing device and dipping by lye pond are being set on rubber belt type filter, and filter cloth is washed and soaks regeneration.
2. the renovation process of a kind of rubber belt type filter cloth for filtering red mud according to claim 1, the device of the filter cloth water flushing that it is characterized in that being provided with is after material is laid down on the filter cloth, inside and outside both sides at filter cloth all are provided with the hydroblasting device, by the water flushing in the interior outside, filter cloth is tentatively regenerated.
3. the renovation process of a kind of rubber belt type filter cloth for filtering red mud according to claim 1, it is characterized in that the filter cloth after the dipping by lye pond that is provided with is to water flushing regeneration adopts alkali lye further to regenerate, the dipping by lye pond is arranged on the filter bottom, width is wider than filter cloth, makes filter cloth be immersed in all the time in the alkali lye pond in the running middle and lower part.
4. the renovation process of a kind of rubber belt type filter cloth for filtering red mud according to claim 1 is characterized in that its regenerative process is after carrying out the filtration washing red mud, carries out hot wash and dipping by lye to the filter cloth after the discharging; The hot wash regeneration of filter cloth, 60～100 ℃ of coolant-temperature gages; Filter cloth enters the immersion regeneration of dipping by lye pond after the hot wash, aqueous caustic concentration 100～450 grams per liters of alkali lye, and 70～90 ℃ of temperature, soak time are 2～20 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910243358A CN101732912A (en) | 2009-12-18 | 2009-12-18 | Regeneration method of rubber belt type filter cloth for filtering red mud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910243358A CN101732912A (en) | 2009-12-18 | 2009-12-18 | Regeneration method of rubber belt type filter cloth for filtering red mud |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101732912A true CN101732912A (en) | 2010-06-16 |
Family
ID=42457251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910243358A Pending CN101732912A (en) | 2009-12-18 | 2009-12-18 | Regeneration method of rubber belt type filter cloth for filtering red mud |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101732912A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106267987A (en) * | 2016-09-05 | 2017-01-04 | 中国铝业股份有限公司 | Vertical filter cloth of disc filter cleaning method |
-
2009
- 2009-12-18 CN CN200910243358A patent/CN101732912A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106267987A (en) * | 2016-09-05 | 2017-01-04 | 中国铝业股份有限公司 | Vertical filter cloth of disc filter cleaning method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102989529B (en) | Method for on-line recovery of ion exchange resin | |
| CN204397578U (en) | Steel wire oxide skin removal device | |
| KR100680635B1 (en) | Method for cleaning coke oven gas | |
| TWI519349B (en) | Apparatus for minimizing regenerant and wastewater by using compressed air | |
| CN208087918U (en) | A kind of textile cloth cleaning device | |
| CN103638993B (en) | A kind of method that ion exchange resin is recovered online | |
| CN105506934B (en) | The self cleaning method of the filter assemblies of washing machine | |
| CN106915800A (en) | A kind of method for softening water treatment system resin regeneration | |
| CN207079035U (en) | A kind of immersion ultrafiltration apparatus | |
| CN207271271U (en) | A kind of online recovery device of resin cation iron poisoning | |
| CN101732912A (en) | Regeneration method of rubber belt type filter cloth for filtering red mud | |
| CN205062185U (en) | Alkaline etching waste liquid resource recycling processing apparatus | |
| CN102909187B (en) | Cleaning machine | |
| CN107442185A (en) | A kind of online recovery device of resin cation iron poisoning and method for resuscitation | |
| CN106215530A (en) | filter cloth cleaning method | |
| CN204356409U (en) | A kind of steel wire oxide skin removal device | |
| CN104193034B (en) | A kind of amine purification processes system | |
| CN105905079B (en) | A kind of water-saving type car cleaning equipment | |
| CN205115253U (en) | Belt type sludge dehydrator's belt cleaning device | |
| CN214495813U (en) | Soft water system | |
| CN108246275A (en) | A kind of regeneration method of phosphoric acid by wet process bleaching tower | |
| CN114535206A (en) | Anti-loosening resilience type belt cleaning device based on electric automation and adopting double-bubble resistance reduction | |
| CN106835670A (en) | A kind of cleaning method for removing terylene silk net greasy dirt | |
| CN206661814U (en) | The purging system of glassware | |
| CN202212369U (en) | Cleaning machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100616 |