CN103272433B - A kind of filtration, purification processing method of silicon powder-containing waste water - Google Patents
A kind of filtration, purification processing method of silicon powder-containing waste water Download PDFInfo
- Publication number
- CN103272433B CN103272433B CN201210482468.XA CN201210482468A CN103272433B CN 103272433 B CN103272433 B CN 103272433B CN 201210482468 A CN201210482468 A CN 201210482468A CN 103272433 B CN103272433 B CN 103272433B
- Authority
- CN
- China
- Prior art keywords
- filter
- perlite
- water
- kieselguhr
- chamber
- 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.)
- Active
Links
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
Abstract
Present invention is mainly used for the filtration, purification of a kind of silicon powder-containing waste water to process, device utilizes chamber-type press filter, add perlite or the processing method of diatomite flocculant filter pressing purification silicon-containing wastewater, system is by chamber-type press filter unit, Pulp pump, perlite or kieselguhr clear water blending bin and blender constitute filtration system, main technological steps includes: add perlite or kieselguhr in clear water blending bin, perlite or kieselguhr is made to be sufficiently mixed in clear water by blender stirring, by Pulp pump, perlite or kieselguhr mixing water are squeezed into chamber-type press filter, perlite or kieselguhr is made to form filter membrane on canvas press cloth, switching silicon powder-containing waste water filters continuously to chamber-type press filter.Inventing for filtration treatment silicon powder-containing waste water, filtration treatment amount is big, and water quality is good, and the water after process can be back to production, it is possible to directly discharges and does not affect environment.<!--1-->
Description
Technical field
The present invention relates to the filtration, purification processing method of a kind of silicon powder-containing waste water, be particularly suitable for the purified treatment processing little granule slag inclusion waste water, belong to wastewater purification field.
Background technology
Production process at polysilicon, with silicon core saw cut silicon rod, producing a large amount of silica flour in cutting process, wherein silicon particle size is generally at 0.12 μm～1mm not etc., and the filter cloth of routine can only filter and be approximately in about 1 μm powder, which results in filter cloth and cannot effectively filter silicon-containing wastewater.Owing in silicon powder-containing waste water, silicon particle size is less, cannot being mixed with water by silica flour according to original design and be effectively separated, the water turbidity of process is higher, it is impossible to proceed reuse, can not meet the present situation of silicon rod cutting water requirement.
The method of the silicon powder-containing waste water that the cutting of existing conventional treatment silicon core produces mainly adds a kind of composition flocculant, makes silicon powder particle flocculation separation, but required flocculant is on the high side, and inconvenience pressurized treatments after flocculation and delamination；Another way is directly outer row, although simple and quick, but the waste water discharged is containing a large amount of silicon powder particles, and environmental effect is very big.
Summary of the invention
The purpose of the present invention: for the shortcoming overcoming prior art; a kind of method that filtration, purification silicon powder-containing waste water is provided; the method is adopted to process silicon powder-containing waste water; can be kept completely separate out by silica flour from silicon powder-containing waste water; filter cloth preliminary filming time is short, treating capacity is big, water quality is good; the safety and stability of system own, solves separation problem, environment is played a very good protection.
The filtration, purification processing method of silicon powder-containing waste water of the present invention is characterized in that: filtration, purification processes system and is made up of chamber-type press filter (4), Pulp pump, perlite or kieselguhr clear water blending bin (1), filtered water tank (7), filter (9), blender (5), and processing step includes:
1) ratio of perlite or diatomite in powder 0.05Kg～0.15Kg is added in every cubic metre of clear water, adsorbent perlite or kieselguhr are added in clear water blending bin (1), stirred by blender (5), make perlite or kieselguhr be sufficiently mixed in clear water, form suspension perlite or kieselguhr mixing water；
2) first it is fixed on filter plate by smooth for filter cloth (3), opens chamber-type press filter (4) and compress filter plate；By the first Pulp pump (2-1), suspension perlite in blending bin (1) or kieselguhr mixing water are driven into chamber-type press filter (4), make suspension perlite or kieselguhr mixing water by chamber-type press filter (4) filter plate, the filter cloth (3) of filter plate is pre-formed filter membrane, forming filter membrane process and need 5～30 minutes, filter cloth adopts terylene 250～80 order；The backwater produced in pre-membrane shaping process is back to by pipeline in perlite or kieselguhr clear water blending bin (1), recycles；
3) after pre-film has been formed, switch valve switch at once, close the outlet of conveying suspension perlite or kieselguhr mixed water conduit, open the outlet of another silicon powder-containing waste pipe, the silicon powder-containing waste water that plan processes is driven in chamber-type press filter (4) by the second Pulp pump (2-2), second Pulp pump (2-2) squeezes into silicon powder-containing wastewater flow from large to small, filters through 3～8 hours, and cylinder pressure during chamber-type press filter (4) work is in 10Mpa～40MPa scope；
4) clear water after filtration treatment, is sent directly into filtered water tank (7) and stores, and after squeezing into filter (9) by reuse water pump (8), is delivered directly to the storage of machining equipment recycle-water place or arranges outward；
5) opening installation filter plate in chamber-type press filter (4), unloads filter cloth (3), the silica flour after filtering out, after manually or mechanically removing, is reinstalled in by filter plate in chamber-type press filter (4), and filter cloth (3) continues to reuse.
Perlite or diatomite adsorbant: 70～325 orders.
It is the main inlet opening of filter plate (10) in the middle of the filter plate installed in chamber-type press filter, filter plate surrounding is uniform-distribution with four apopores (11), the inwall of apopore (11) has two apertures (12), silicon-containing wastewater passes into filter-cloth filtering from water inlet (10), flow out from apopore (11), again pass by the aperture (12) on apopore (11) to repeat to circulate in filter plate simultaneously, reach secondary filter；After pressure filter has used, when filter cloth cleans, first pass into compression air from filter plate both sides and the filter cloth whole filter plate is carried out blowback, the silica flour making on filter cloth attachment quickly volatilizees moisture, silicon powder deposit is filter cake shape, reducing heating and spontaneous combustion run into air because silica flour is moisture after to produce to pollute to environment, filter cake adopts automatic panel-turnover slag structure or mode of manually rooting out to eliminate.
Operation principle of the present invention is: the perlite of employing or diatomite adsorbant are through being pumped to pressure filter, when pump pressure reaches authorized pressure 0.4MPa～0.5MPa, perlite or kieselguhr is made well to be adsorbed on filter cloth, when filtering silicon powder-containing waste water, silica flour in waste water can be adsorbed again by perlite or kieselguhr, constantly cohesion, thus reaching the purpose of effectively filtration, simultaneously along with the continuous absorption of silica flour, form new filter course, the new filtering layer that oarse-grained silica flour is formed is utilized again little silicon powder particle effectively to filter, waste water is made fully to filter, reach instructions for use.Perlite or diatomaceous strong adsorptivity is relied on to make it as adsorbent, perlite or diatomaceous water one layer of filtration membrane by being formed after the filter pressing of canvas press cloth surface will be furnished with by Pulp pump, after passing into silicon powder-containing waste water, the silica flour in silicon powder-containing waste water is efficiently separated, reach purification of water quality purpose.
The inventive method is adopted to process silicon-containing wastewater; can be kept completely separate out by silica flour from silicon powder-containing waste water; filter cloth preliminary filming time is short, cycle of operation length, treating capacity are big, purification of water quality is good, the safety and stability of system own, and equipment operates and simple in construction, and environment is played a very good protection.
Accompanying drawing explanation
Below in conjunction with accompanying drawing illustrated embodiment, structure is described further, but scope is not limited to this embodiment.
Fig. 1 is each parts annexation schematic diagram of present invention process.
Fig. 2 is the FB(flow block) of present invention process.
Fig. 3 is the filter-plate structure schematic diagram that the present invention is arranged in chamber-type press filter.
Fig. 4 is the silica flour being press-filtered out after the present invention processes.
Fig. 5 is the waste water that the present invention processes front silicon powder-containing.
Fig. 6 is the recycle-water processed through the present invention.
Number in the figure: (1) perlite or kieselguhr clear water blending bin；(2-1) the first Pulp pump；(2-2) the second Pulp pump；(3) filter plate filter cloth；(4) chamber-type press filter；(5) blender；(6) silicon-containing wastewater collecting pit；(7) filtered water tank；(8) reuse water pump；(9) clear water reuse front filter；(10) inlet opening；(11) apopore (12) aperture.
Detailed description of the invention
As it is shown in figure 1, be first fixed on filter plate by smooth for filter cloth 3, open chamber-type press filter 4 and compress filter plate.
In perlite or kieselguhr clear water blending bin 1, utilizing blender 5 that perlite or kieselguhr are mixed in proportion with clear water, it is thus achieved that mixing water, mixing water is sent to chamber-type press filter 4 by the first Pulp pump 2-1, it is allowed to condition on filter plate filter cloth 3 and is pre-formed a metafiltration film, be i.e. pre-film.The backwater produced in pre-membrane shaping process is back to by pipeline in perlite or kieselguhr clear water blending bin 1, recycles, does not result in new pollution.
When pre-film completes (preliminary filming time: 5～30min), close mixing water route, silicon-containing wastewater 6 is sent into chamber-type press filter 4 by the second Pulp pump 2-2 and is filtered purified treatment；
Clear water after being processed by chamber-type press filter 4 is sent directly into filtered water tank 7 and stores；
After clear water after process squeezes into filter 9 by reuse water pump 8, the machine of being fed directly to adds with water spot or arranges outward.
Embodiment 1:
Filter Press area: 15～30；Pressure filter cylinder pressure: 20Mpa, continuity along with the working time, along with on filter cloth, attachment increases, pressure filter cylinder pressure can slowly raise, to be advisable not higher than 28MPa, if cylinder pressure is more than after 28MPa, if working on, blocked tendency due to filter cloth, hydraulic cylinder has moment to produce high pressure, causes the hidden danger of equipment security incident.Therefore, monitoring pressure filter cylinder pressure (to be advisable not higher than 28MPa) should be noted at work；Disposal ability: maximum throughput processes 30m3(in 3 hours because this method processes silicon-containing wastewater, uninterrupted is a progressive formation from large to small, within the regular hour, the total amount of process may only be seen, and can not obtain an invariable flow) maximum flow of first 3 hours of each cycle, taper into, although the Effects of Water Quality of process is fine, but treating capacity is limited by system capability later.The most long process time in each cycle is more than 9 hours.Preliminary filming time 5～30 minutes, pure water consumption: 10m3, perlite or kieselguhr consumption 0.5～1.5kg.
Index analysis before and after processing:
The equipment used
1, Pulp pump (flow: 12m3/ h lift: 43m power: 3.5kw)
2, chamber-type press filter (unit type: XAYF30/800-UB；Filter area: 30m2；Filter plate: PP29 sheet；Filter cloth: terylene 250～120 order)
Chamber-type press filter construction features is as follows:
A, chamber-type press filter body construction, have employed compression air pass into from filter plate both sides compression air whole filter plate is carried out blowback, moisture between silica flour is made quickly to volatilize, filter cake deposits, decrease heating and spontaneous combustion run into air because silica flour is moisture after to affect produced by environment simultaneously, equipment have employed the mode of automatic panel-turnover slag, reduces artificial workload.
B, filter plate construction features
The structure of the filter plate that the program adopts is as follows:
It is the main water inlet of filter plate in the middle of filter plate, filter plate surrounding is uniform-distribution with four apopores (11), the inwall of apopore has two apertures (12), silicon powder-containing waste water passes into filter-cloth filtering from water inlet (10), flow out from apopore (11), again pass by the aperture (12) on apopore (11) to repeat to circulate in filter plate simultaneously, reach secondary filter.(see figure 3)
3, filtered water tank: 1.26 × 1.26 × 1.272m3
4, perlite or diatomite adsorbant: 70-325 order
5, wastewater disposal basin: 1.5 × 2.5 × 413m3；Reinforced Concrete Structure
6, sedimentation tank: 3 × 2.5 × 430m3；Reinforced Concrete Structure
7, clear water container:
Size: diameter (D) × height (H)=φ 2.5 × 3m
Dischargeable capacity: 13.5m3
Hydraulic detention time (HRT): 1.1h
Glass steel material, ground type
8, reuse water pump
Model: IS50-32-200 flow: Q=15m3/ h lift: 35m
Power: N=3kw
If newly-built silicon-containing wastewater of the present invention processes system gross investment: about 1,090,000；330 days whole year operation time, every day cutting silicon rod 8, every day runs 10h.Following table is basis:
| Project | Quantity | Remarks |
| Machining equipment water consumption | 120m3/ sky | |
| The whole year operation time | 330 days | |
| Commercial power cost | 0.42 yuan/kw | |
| The cost of desalted water | 10 yuan/m3 | |
| Cost of labor | 4000 yuan/month |
Annual water consumption is about: 120 × 330=39600m3, the whole year, water cost was: 39600 × 10=396000 unit；
The whole year, electric cost was about: 6.5 × 10 × 330 × 0.42=9009 unit；
Annual cost of labor: 4000 × 12=48000 unit；
Annual equipment and spare part and medicament: 10000 yuan；
After utilizing this cover system, cooling water can be circulated use, cost-saved is every year:
396000-9009-48000-10000=328991 unit.Estimate to come into operation latter 4 years recoverable costs of investment.
In order to alleviate artificial remove processed by the invention after be adsorbed on filter plate and be press-filtered out silica flour, first can pass into compression air from the back side, filter plate both sides and the filter cloth monoblock filter plate is carried out blowback, the moisture in the silica flour accompanying by monoblock filter cloth front is allowed quickly to volatilize, form bulk deposition filter cake, reduce heating and spontaneous combustion after moisture silica flour runs into air to produce to pollute to environment, manually root out again or adopt automatic panel-turnover mode slag, alleviating workload.
This invention address that silicon powder-containing waste water cannot be carried out the problem of process and pure water reuse, and formulated relevant technological procedure.Design, process, be configured with relevant device, built up the silicon powder-containing Waste Water Treatment of complete set.The technological process that this project adopts is reasonable, cost-effective, has broad application prospects.
Claims (1)
1. the filtration, purification processing method of a silicon powder-containing waste water, it is characterized in that filtration, purification processes system and is made up of chamber-type press filter (4), Pulp pump, perlite or kieselguhr clear water blending bin (1), filtered water tank (7), filter (9), blender (5), processing step includes:
1) ratio of perlite or diatomite in powder 0.05Kg～0.15Kg is added in every cubic metre of clear water, adsorbent perlite or kieselguhr are added in clear water blending bin (1), stirred by blender (5), make perlite or kieselguhr be sufficiently mixed in clear water, form suspension perlite or kieselguhr mixing water；
2) first it is fixed on filter plate by smooth for filter cloth (3), opens chamber-type press filter (4) and compress filter plate；By the first Pulp pump (2-1), suspension perlite in blending bin (1) or kieselguhr mixing water are driven into chamber-type press filter (4), make suspension perlite or kieselguhr mixing water by chamber-type press filter (4) filter plate, the filter cloth (3) of filter plate is pre-formed filter membrane, forming filter membrane process and need 5～30 minutes, filter cloth adopts terylene 250～80 order；The backwater produced in pre-membrane shaping process is back to by pipeline in perlite or kieselguhr clear water blending bin (1), recycles；
3) after pre-film has been formed, switch valve switch at once, close the outlet of conveying suspension perlite or kieselguhr mixed water conduit, open the outlet of another silicon powder-containing waste pipe, the silicon powder-containing waste water that plan processes is driven in chamber-type press filter (4) by the second Pulp pump (2-2), second Pulp pump (2-2) squeezes into silicon powder-containing wastewater flow from large to small, filters through 3～8 hours, and cylinder pressure during chamber-type press filter (4) work is in 10Mpa～40MPa scope；
4) clear water after filtration treatment, is sent directly into filtered water tank (7) and stores, and after squeezing into filter (9) by reuse water pump (8), is delivered directly to the storage of machining equipment recycle-water place or arranges outward；
5) opening installation filter plate in chamber-type press filter (4), unloads filter cloth (3), the silica flour after filtering out, after manually or mechanically removing, is reinstalled in by filter plate in chamber-type press filter (4), and filter cloth (3) continues to reuse；
Described perlite or diatomite adsorbant: 70～325 orders；
It is the main inlet opening of filter plate (10) in the middle of the filter plate installed in described chamber-type press filter, filter plate surrounding is uniform-distribution with four apopores (11), the inwall of apopore (11) has two apertures (12), silicon-containing wastewater passes into filter-cloth filtering from inlet opening (10), flow out from apopore (11), again pass by the aperture (12) on apopore (11) to repeat to circulate in filter plate simultaneously, reach secondary filter；After pressure filter has used, when filter cloth cleans, first pass into compression air from filter plate both sides and the filter cloth whole filter plate is carried out blowback, the silica flour making on filter cloth attachment quickly volatilizees moisture, silicon powder deposit is filter cake shape, reducing heating and spontaneous combustion run into air because silica flour is moisture after to produce to pollute to environment, filter cake adopts automatic panel-turnover slag structure or mode of manually rooting out to eliminate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210482468.XA CN103272433B (en) | 2012-11-23 | 2012-11-23 | A kind of filtration, purification processing method of silicon powder-containing waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210482468.XA CN103272433B (en) | 2012-11-23 | 2012-11-23 | A kind of filtration, purification processing method of silicon powder-containing waste water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103272433A CN103272433A (en) | 2013-09-04 |
| CN103272433B true CN103272433B (en) | 2016-07-06 |
Family
ID=49055115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210482468.XA Active CN103272433B (en) | 2012-11-23 | 2012-11-23 | A kind of filtration, purification processing method of silicon powder-containing waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103272433B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103482840A (en) * | 2013-09-22 | 2014-01-01 | 天津中材工程研究中心有限公司 | Sludge film precoating and dehydrating technology and equipment |
| CN112619286B (en) * | 2020-12-17 | 2022-06-10 | 龙佰襄阳钛业有限公司 | Method for purifying and crystallizing titanium dioxide solution |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2079994U (en) * | 1990-05-27 | 1991-07-03 | 谭绩生 | Distomaceous earth solid board fine filting machine |
| CN1562801A (en) * | 2004-04-09 | 2005-01-12 | 大连理工大学 | Sewerage treatment method by using precoated dynamic membrane to filter mixed liquor of activated sludge |
| JP2007099586A (en) * | 2005-10-07 | 2007-04-19 | Oji Paper Co Ltd | Method for producing silica particulate-dispersed liquid, silica particulate-dispersed liquid and ink jet recording sheet |
| CN101703854A (en) * | 2009-09-27 | 2010-05-12 | 上海安昆水处理设备有限公司 | Wastewater treatment system and wastewater treatment method thereof |
-
2012
- 2012-11-23 CN CN201210482468.XA patent/CN103272433B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2079994U (en) * | 1990-05-27 | 1991-07-03 | 谭绩生 | Distomaceous earth solid board fine filting machine |
| CN1562801A (en) * | 2004-04-09 | 2005-01-12 | 大连理工大学 | Sewerage treatment method by using precoated dynamic membrane to filter mixed liquor of activated sludge |
| JP2007099586A (en) * | 2005-10-07 | 2007-04-19 | Oji Paper Co Ltd | Method for producing silica particulate-dispersed liquid, silica particulate-dispersed liquid and ink jet recording sheet |
| CN101703854A (en) * | 2009-09-27 | 2010-05-12 | 上海安昆水处理设备有限公司 | Wastewater treatment system and wastewater treatment method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103272433A (en) | 2013-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101215051A (en) | Minitype sea water desalination system water treatment technique | |
| CN202808516U (en) | Novel underground water defluorination device | |
| CN103272433B (en) | A kind of filtration, purification processing method of silicon powder-containing waste water | |
| CN103073147A (en) | Turbid circulating water treatment method and system | |
| CN203999002U (en) | A kind of radial-flow multimedium waste disposal plant | |
| CN203159368U (en) | Wastewater treatment system for nano calcium carbonate production | |
| CN105152386A (en) | Mixed sewage treatment technology | |
| CN104973711A (en) | Sewage impurity separation method | |
| CN207608952U (en) | Rainwater-collecting and processing unit | |
| CN102489073A (en) | Construction method for rapidly dehydrating dredging mud by centrifugation and plate frame | |
| CN103819021A (en) | Method for processing heavy metal waste pipe | |
| CN210419499U (en) | Grinding wastewater treatment device | |
| CN203954764U (en) | Quartz filter | |
| CN208250010U (en) | A kind of built-in water circulation processing system | |
| CN203754528U (en) | Device for treating waste water during production of glass | |
| CN104071914A (en) | Stainless steel leveling waste liquid recycling treatment method and system device thereof | |
| CN207845318U (en) | A kind of ceramic sewage treatment device | |
| CN202146674U (en) | Cheek type filter | |
| CN201737780U (en) | Ceramic press filter plate filtrate water system | |
| CN2920359Y (en) | Cutting material water circulation and utilization device special for semiconductor material wire cutting | |
| CN204981378U (en) | Metallic membrane filtration system for advanced wastewater treatment | |
| CN217600554U (en) | Wire cutting fluid conveying and purifying device | |
| CN220056578U (en) | Machining workshop cutting waste liquid treatment system | |
| CN203333346U (en) | Water purification machine | |
| CN214528435U (en) | Workshop wastewater pretreatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 655011 Sanjiang Avenue, Qujing economic and Technological Development Zone, Yunnan 9 Patentee after: Yunnan metallurgical cloud core silicon material Limited by Share Ltd Address before: 655011 Sanjiang Avenue, Qujing economic and Technological Development Zone, Qujing, Yunnan, 9 Patentee before: Kunming Yeyan New Material Co., Ltd. |
|
| CP03 | Change of name, title or address |