CN103949100A - Ceramic filter apparatus for separating magnesium hydrate solution, and process thereof - Google Patents
Ceramic filter apparatus for separating magnesium hydrate solution, and process thereof Download PDFInfo
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- CN103949100A CN103949100A CN201410097742.0A CN201410097742A CN103949100A CN 103949100 A CN103949100 A CN 103949100A CN 201410097742 A CN201410097742 A CN 201410097742A CN 103949100 A CN103949100 A CN 103949100A
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Abstract
The present invention relates to a ceramic filter apparatus for separating a magnesium hydrate solution, and a process thereof. The ceramic filter apparatus mainly comprises a water inlet tank, a ceramic filter, a cleaning water tank, an acid tank, a concentrated water tank, a water inlet pump, a cleaning water pump and a valve, wherein the filtration time is 20-40 min, cleaning comprises air-water backwashing and acid washing, and the ceramic filter comprises a housing, a support plate, and a ceramic membrane or a ceramic filtration core. According to the present invention, seawater, bittern water and saturated salt water containing a certain concentration of magnesium ions are adopted as raw materials, the magnesium hydrate solution or ammonium hydroxide is added to form magnesium hydrate precipitate, the ceramic filter is adopted to separate magnesium hydrate and purify water, the ceramic filter apparatus has the characteristics of high efficiency, easy equipment washing and large water production, and the size of filtration holes of an filtration element can be selected according to the size of particles. The ceramic filter can be adopted to wash the magnesium hydrate solution so as to ensure quality of the magnesium hydrate product, and the ceramic filter is adopted to separate magnesium hydrate in the aqueous solution so as to effectively ensure quality of the produced water and recover the aqueous solution product.
Description
Technical field
The present invention relates to a kind of ceramic filter apparatus and technique that separates magnesium hydroxide solution.To containing granule magnesium hydroxide solution, adopt ceramic filter apparatus to carry out continous-stable Separation of Solid and Liquid, ensure the water quality of solution after filtering, reclaim magnesium hydroxide.
Background technology
Adopt seawater, bittern to extract magnesium hydroxide, can obtain high-purity, ultra-fine and nano-sized magnesium hydroxide product, but in separation process, usually can be little because of magnesium hydroxide particle, light specific gravity, viscosity be high, is colloidal solution, and solution concentration is low, is difficult to separate.
A lot of about the patent of magnesium hydroxide preparation both at home and abroad at present, as: the manufacture of the preparation of CN 02133360.2 nanometer magnesium hydoxide as smoke-inhibiting fire retardant and new surface treatment, CN96109067.7 magnesium hydroxide and application, CN90102696.4 finely powdery magnesium hydroxide and preparation method thereof and CN 1130682.3 homogeneous fluid process of preparing nanometer magnesium hydroxide, a CN01141787.0 preparation process of magnesium hydroxide fire-retarding nanomaterial etc. patent, although process is different, substantially all adopt the mode of vacuum filtration, centrifugal filtration or press filtration to filter.Not only low, the intermittently operated of efficiency, and be difficult to realize large-scale production.The separation and the washing problem that adopt ceramic filter to solve magnesium hydroxide at present have no report simultaneously.
Summary of the invention
The object of this invention is to provide a kind of ceramic filter apparatus and technique that separates magnesium hydroxide solution, can overcome the defect of prior art.For old halogen after seawater, bittern, salt manufacturing, while adopting the synthetic magnesium hydroxide of the whole bag of tricks, adopt ceramic filter to separate, wash magnesium hydroxide, not only making to filter rear solution can continue to utilize, and device separates efficiency is high, easy cleaning, flux are large, can select according to grain diameter size the pore size filter of filter element, to ensure magnesium hydroxide products quality.The present invention adopts magnesium hydroxide in ceramic filter fractionate aqueous solutions, not only can effectively ensure to produce water water quality and recyclable magnesium hydroxide products.
A kind of ceramic filter apparatus that separates magnesium hydroxide solution provided by the invention mainly comprises: inlet water tank, intake pump, ceramic filter, flushing water pump, cleaning water tank, pickling water tank, dense water tank and valve; Valve comprises product water valve, return valve, dense water valve, Valve for washing, backwash valve, drain valve, dope recovery valve, cleans drain valve, cleans water valve, pickling valve, intake valve and drain valve.
Inlet water tank connects ceramic filter through intake pump, dense water tank connects the bottom of ceramic filter through dope recovery valve, between the bottom of ceramic filter and cleaning water tank, there is flushing water pump, between flushing water pump and cleaning water tank, there is cleaning water valve, pickling water tank is connected to flushing water pump and cleans between water valve through pickling valve, between flushing water pump and the bottom of ceramic filter, Valve for washing and backwash valve are installed, between the bottom of ceramic filter and product water valve, there is cleaning drain valve, between dope recovery valve and the bottom of ceramic filter, drain valve is installed; Inlet water tank is communicated with dense water valve through return valve, is connected the top of ceramic filter between return valve and dense water valve by pipeline, and this pipeline is installed into air valve, and drain valve is installed on the top of ceramic filter.
Ceramic filter comprises housing housing, upper cover, low head, ceramic membrane or ceramic element, fixing card, sealing ring, water inlet, the product mouth of a river, refluxing opening, the backwash mouth of a river, Pressure gauge, air inlet and exhaust outlet.
Upper cover and low head are arranged on housing via sealing ring and fixing card respectively, setting pressure table and the backwash mouth of a river on upper cover, and backwash has refluxing opening on the mouth of a river, is installed into the mouth of a river and air inlet on low head; Exhaust outlet is arranged at housing top, the You Chan mouth of a river, bottom.
Ceramic filter also comprises sealing ring, and ceramic filter is intake by bottom, and head portion refluxes, and the dense water of part is collected, and for further washing, produces water by filter housings bottom; This ceramic filter housing is to be made up of engineering plastics (as macromolecular materials such as polyethylene, polypropylene, fiberglass) or carbon steel liner engineering plastics.
Described ceramic membrane or the arrangement of ceramic element are triangle, rhombus or other arrangement, and marshalling is even; Described ceramic membrane or ceramic element are cross-flow filtration, and membrane component adopts cushion rubber to seal; Filter for installation case top is established air bleeding valve, is convenient to air water and cleans exhaust.
The size of described ceramic filter designs according to aquifer yield, and the quantity of built-in film can be single film
216 films.
Described ceramic membrane operating pressure is 0.1 ~ 0.5MPa, crossflow velocity 0.4 ~ 4m/s, and filtration time 20 ~ 40min, cleans and is made up of pickling and washing.
Ceramic filter apparatus provided by the invention comprises the steps: for separating of the technique of magnesium hydroxide solution
1) filter: adopting the solution that contains magnesium hydroxide is raw material, open and produce water valve, return valve, dense water valve, start intake pump material liquid is squeezed into ceramic filter, after ceramic filter, see through liquid for utilizing for further, concentrate is partly refluxed to inlet water tank, and part, for containing high concentration of hydrogen magnesium oxide solution, can adopt the further washing concentrating of ceramic filter.
2) washing of filter: filter while carrying out 30 ~ 40min, stop and clean.Open dope recovery valve, filter middle and high concentration magnesium hydroxide solution is put to dense water tank, close dope recovery valve; Open and clean water valve, backwash valve, drain valve, start flushing water pump, there are flowing out to drain valve, stop flushing water pump, close drain valve, open intake valve, drain valve, pass into compressed air filter is carried out to air water scouring, 5 ~ 10s closes intake valve, opens drain valve, water in filter is put only, closed cleaning water valve; Open pickling valve, start flushing water pump, have acid to flow out to drain valve, stop flushing water pump, close drain valve, pass into compressed air and filter is carried out to gas acid clean, 5 ~ 10s closes intake valve, opens drain valve, and acid in filter is put and only closed pickling valve; Open cleaning water valve, start flushing water pump, there are flowing out to drain valve, stop flushing water pump, open intake valve, pass into compressed air filter is carried out to air water scouring, 5 ~ 10s closes intake valve, open drain valve water in filter is put only, close drain valve, clean water valve, intake valve, drain valve, enter filtration condition.
A kind of ceramic filter apparatus and technique that separates magnesium hydroxide solution provided by the invention comprises filtration and cleans.Filtration time is 20 ~ 40min, cleans and comprises air water backwash and pickling.The present invention is for separating of reclaiming magnesium hydroxide and purifying waste water, and efficiency is high, equipment easy cleaning, aquifer yield are large, can select according to grain diameter size the pore size filter of filter element.And can adopt this filter to wash magnesium hydroxide solution, to ensure magnesium hydroxide products quality.The present invention adopts magnesium hydroxide in ceramic filter fractionate aqueous solutions, not only can effectively ensure to produce water water quality and recyclable magnesium hydroxide products.
Brief description of the drawings
Fig. 1 ceramic membrane filter magnesium hydroxide process flow diagram.
Fig. 2 ceramic filter structure schematic diagram.
Detailed description of the invention
The present invention is described in detail as follows by reference to the accompanying drawings:
As shown in Figure 1,1-inlet water tank, 2-intake pump, 3-ceramic membrane, 4-flushing water pump, 5-cleans water tank, 6-pickling water tank, the dense water tank of 7-, 8-produces water valve, 9-return valve, the dense water valve of 10-, 11-Valve for washing, 12-backwash valve, 13-drain valve, 14-dope recovery valve, 15-cleans drain valve, and 16-cleans water valve, 17-pickling valve, 18-intake valve, 19-drain valve.
Inlet water tank 1 connects ceramic filter 3 through intake pump 2, dense water tank 7 connects the bottom of ceramic filter 3 through dope recovery valve 14, between the bottom of ceramic filter 3 and cleaning water tank 5, there is flushing water pump 4, between flushing water pump 4 and cleaning water tank 5, there is the water valve 16 of cleaning, pickling water tank 6 is connected to flushing water pump 4 and cleans between water valve 16 through pickling valve 17, Valve for washing 11 and backwash valve 12 are installed between the bottom of flushing water pump 4 and ceramic filter 3, between the bottom of ceramic filter 3 and product water valve 8, there is the drain valve 15 of cleaning, drain valve 13 is installed between the bottom of dope recovery valve 14 and ceramic filter 3, inlet water tank 1 is communicated with dense water valve 10 through return valve 9, is connected the top of ceramic filter 3 between return valve 9 and dense water valve 10 by pipeline, and this pipeline is installed into air valve 18, and drain valve 19 is installed on the top of ceramic filter 3.
As shown in Figure 2, ceramic filter comprises 20-housing, 21 upper covers, 22-low head, 23-sealing ring, 24-ceramic membrane or ceramic element, 25-fixes card, 26-water inlet, 27-produces the mouth of a river, 28-refluxing opening, the 29-backwash mouth of a river, 30-Pressure gauge, 31-air inlet, 32-exhaust outlet.
Upper cover 21 and low head 22 are arranged on housing 20 via sealing ring 23 and fixing card 25 respectively, and on upper cover 21,, there is refluxing opening 28 at setting pressure table 30 and the backwash mouth of a river 29 on the backwash mouth of a river 29, are installed into the mouth of a river 26 and air inlet 31 on low head 22; Exhaust outlet is arranged at housing 20 tops, the You Chan mouth of a river, bottom 27.
This ceramic filter housing is to be made up of engineering plastics (as macromolecular materials such as polyethylene, polypropylene, fiberglass) or carbon steel liner engineering plastics or rubber.Sealing ring 23 is the critical components that separate processing water with upper and lower fixing card 25, ceramic element 24 is through fixing card 25, by sealing ring 23, filter core is fixed and is sealed on fixing card 25, filter core produces water and is exported by the housing product mouth of a river 27, partial concentration liquid refluxes and continues to concentrate through refluxing opening 28, and partial concentration liquid drains into subsequent processing through refluxing opening 28 and reclaims magnesium hydroxide.
In embodiment 1 inlet water tank 1, be that magnesium hydroxide concentration is the seawater of 3800mg/L, ceramic membrane membrane aperture is 0.2mm, crossflow velocity 0.6m/s.
Seawater inlet amount is 3m
3/ h, adopts intake pump 2 that the seawater that contains magnesium hydroxide solution is squeezed into ceramic filter 3, after ceramic filter, seeing through liquid is purifying sea water, and concentrate is high concentration of hydrogen magnesium oxide solution, partial reflux, part is squeezed into dense water tank 7 and is processed for continuing, and after 30min, system enters cleaning state.It is 0.2 ~ 0.5NTU that system is produced water turbidity.
Open dope recovery valve 14 liquid in filter is put to dense water tank, close dope recovery valve 14; Open and clean water valve 16, backwash valve 12, drain valve 13, start flushing water pump 4, there are flowing out to drain valve 13, stop flushing water pump 4, close drain valve 13, open intake valve 18, drain valve 19, pass into compressed air filter is carried out to air water scouring, 5 ~ 10s closes intake valve 18, opens valve 13, water in filter is put only, closed and clean water valve 16; Open pickling valve 17, start scavenging pump 4, to drain valve 13 have acid flow out, stop flushing water pump 4, close drain valve 13, open intake valve 18, pass into compressed air filter is carried out to gas acid scouring, gas flow 500L/s, pressure 0.6MPa, 5 ~ 10s closes intake valve 18, opens drain valve 13 acid in filter is put only, closes pickling valve 17; Open and clean water valve 16, start flushing water pump 4, there are flowing out to drain valve 13, stop flushing water pump 4, close drain valve 13, open intake valve 18, pass into compressed air filter is carried out to air water scouring, 5 ~ 10s closes intake valve 18, opens drain valve 13 water in filter is put only, close intake valve 18, drain valve 19, clean water valve 16, drain valve 13, system enters filtration condition.
In embodiment 2 inlet water tanks 1, be the magnesium hydroxide saturated brine that contains 1.5 ‰ mass concentrations, ceramic membrane membrane aperture is 0.2mm,, crossflow velocity 0.2m/s.
Saturated brine inlet amount is 9m
3/ h, adopts intake pump 4 that inlet water tank 1 Raw seawater is squeezed into ceramic filter 3, after ceramic filter, see through liquid for purifying saturated brine, concentrate is for containing high concentration of hydrogen magnesium oxide solution, partial reflux, part is squeezed into dense water tank 7 and is processed for continuing, and after 30min, system enters cleaning state.It is 0.5 ~ 2NTU that system is produced water turbidity.
Open dope recovery valve 14 liquid in filter is put only, close dope recovery valve 14; Open and clean water valve 16, backwash valve 12, drain valve 13, start flushing water pump 4, there are flowing out to drain valve 13, stop flushing water pump 4, close drain valve 13, open intake valve 18, drain valve 19, pass into compressed air filter is carried out to air water scouring, 5 ~ 10s closes intake valve 18, opens drain valve 13, water in filter is put only, closed and clean water valve 16; Open pickling valve 17, start flushing water pump 4, to drain valve 13 have acid flow out, stop flushing water pump 4, close drain valve 13, open intake valve 18, pass into compressed air filter is carried out to gas acid scouring, gas flow 500L/s, pressure 0.6MPa, 5 ~ 10s closes intake valve 18, opens drain valve 13 acid in filter is put only, closes pickling valve 17; Open and clean water valve 16, start flushing water pump 4, there are flowing out to drain valve 13, stop flushing water pump 4, close drain valve 13, open intake valve 18, pass into compressed air filter is carried out to air water scouring, 5 ~ 10s closes intake valve 18, opens drain valve 13 water in filter is put only, close intake valve 18, drain valve 19, clean water valve 16, drain valve 13, system enters filtration condition.
The open ceramic filter apparatus and the technique that separate magnesium hydroxide solution with proposing of the present invention, can be applicable to and other boring Separation of Solid and Liquid like magnesium hydroxide solution phase, those skilled in the art can be by using for reference content herein, the links such as appropriate change process route realize, although method of the present invention is described by preferred embodiment, person skilled obviously can change or reconfigure method as herein described not departing from content of the present invention, spirit and scope, realizes final result.Special needs to be pointed out is, all similar replacements and change apparent to those skilled in the artly, they are all deemed to be included in spirit of the present invention, scope and content.
Claims (8)
1. one kind separates the ceramic filter apparatus of magnesium hydroxide solution, it is characterized in that it mainly comprises: inlet water tank, intake pump, ceramic filter, flushing water pump, cleaning water tank, pickling water tank, dense water tank and valve, valve comprises product water valve, return valve, dense water valve, Valve for washing, backwash valve, drain valve, dope recovery valve, cleans drain valve, cleans water valve, pickling valve, intake valve and drain valve;
Inlet water tank connects ceramic filter through intake pump, dense water tank connects the bottom of ceramic filter through dope recovery valve, between the bottom of ceramic filter and cleaning water tank, there is flushing water pump, between flushing water pump and cleaning water tank, there is cleaning water valve, pickling water tank is connected to flushing water pump and cleans between water valve through pickling valve, between flushing water pump and the bottom of ceramic filter, Valve for washing and backwash valve are installed, between the bottom of ceramic filter and product water valve, there is cleaning drain valve, between dope recovery valve and the bottom of ceramic filter, drain valve is installed; Inlet water tank is communicated with dense water valve through return valve, is connected the top of ceramic filter between return valve and dense water valve by pipeline, and this pipeline is installed into air valve, and drain valve is installed on the top of ceramic filter.
2. according to device claimed in claim 1, it is characterized in that described ceramic filter comprises housing, upper cover, low head, ceramic membrane or ceramic element, fixing card, sealing ring, water inlet, the product mouth of a river, refluxing opening, the backwash mouth of a river, Pressure gauge, air inlet and exhaust outlet;
Upper cover and low head are arranged on housing via sealing ring and fixing card respectively, setting pressure table and the backwash mouth of a river on upper cover, and backwash has refluxing opening on the mouth of a river, is installed into the mouth of a river and air inlet on low head; Exhaust outlet is arranged at housing top, the You Chan mouth of a river, bottom.
3. according to device claimed in claim 1, it is characterized in that described ceramic filter housing is to be made up of polyethylene, polypropylene, fiberglass or carbon steel liner engineering plastics.
4. according to device claimed in claim 2, it is characterized in that described ceramic membrane or the arrangement of ceramic element are triangle, rhombus or other arrangement.
5. according to device claimed in claim 2, it is characterized in that described ceramic membrane or ceramic element are inner pressed cross-flow filtration; Membrane component is hollow tubular type, adopts sealing ring that film pipe is fixed on fixing card.
6. according to device claimed in claim 2, it is characterized in that the quantity of placement membrane component in described ceramic filter is single film
72 films.
7. according to device claimed in claim 2, it is characterized in that described ceramic membrane operating pressure is 0.1 ~ 0.5MPa, crossflow velocity 0.1 ~ 0.5MPa, crossflow velocity 0.15 ~ 4m/s, filtration time 20 ~ 40min.
8. ceramic filter apparatus claimed in claim 1, for separating of the technique of magnesium hydroxide solution, is characterized in that comprising the steps:
1) filter: adopting the solution that contains magnesium hydroxide is raw material, open and produce water valve, return valve, dense water valve, start intake pump material liquid is squeezed into ceramic filter, after ceramic filter, see through liquid for utilizing for further, concentrate is partly refluxed to inlet water tank, and part, for containing high concentration of hydrogen magnesium oxide solution, can adopt the further washing concentrating of ceramic filter;
2) washing of filter: filter while carrying out 30 ~ 40min, stop and clean, open dope recovery valve, filter middle and high concentration magnesium hydroxide solution is put to dense water tank, close dope recovery valve; Open and clean water valve, backwash valve, drain valve, start flushing water pump, there are flowing out to drain valve, stop flushing water pump, close drain valve, open intake valve, drain valve, pass into compressed air filter is carried out to air water scouring, 5 ~ 10s closes intake valve, opens drain valve, water in filter is put only, closed cleaning water valve; Open pickling valve, start flushing water pump, have acid to flow out to drain valve, stop flushing water pump, close drain valve, pass into compressed air and filter is carried out to gas acid clean, 5 ~ 10s closes intake valve, opens drain valve, and acid in filter is put and only closed pickling valve; Open cleaning water valve, start flushing water pump, there are flowing out to drain valve, stop flushing water pump, open intake valve, pass into compressed air filter is carried out to air water scouring, 5 ~ 10s closes intake valve, open drain valve water in filter is put only, close drain valve, clean water valve, intake valve, drain valve, enter filtration condition.
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| CN201410097742.0A CN103949100B (en) | 2013-06-21 | 2014-03-18 | Be separated ceramic filter devices and the technique of magnesium hydroxide solution |
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| CN201310248260 | 2013-06-21 | ||
| CN201310248260.6 | 2013-06-21 | ||
| CN2013102482606 | 2013-06-21 | ||
| CN201410097742.0A CN103949100B (en) | 2013-06-21 | 2014-03-18 | Be separated ceramic filter devices and the technique of magnesium hydroxide solution |
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| CN103949100B CN103949100B (en) | 2015-10-07 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104324615A (en) * | 2014-11-21 | 2015-02-04 | 成都瑞芬思生物科技有限公司 | Micro-filtration membrane filtering device for bio-pharmaceuticals |
| CN104841195A (en) * | 2015-06-02 | 2015-08-19 | 中国恩菲工程技术有限公司 | Purification and recovery device for chlorosilane waste liquid and purification and recovery method for chlorosilane waste liquid |
| CN107551651A (en) * | 2017-09-22 | 2018-01-09 | 江门市河正环保设备有限公司 | A kind of intelligently filters device |
| CN109775783A (en) * | 2019-03-04 | 2019-05-21 | 马钢(合肥)板材有限责任公司 | A kind of on-line cleaning method of desalination water pre-treatment means |
| CN111229041A (en) * | 2020-03-04 | 2020-06-05 | 国初科技（厦门）有限公司 | Device and method for concentrating inorganic powder slurry of flat ceramic membrane |
| CN113877423A (en) * | 2021-11-10 | 2022-01-04 | 第一环保（深圳）股份有限公司 | Method for treating high organic waste liquid by using high-temperature-resistant ceramic silicon carbide film |
| CN116282409A (en) * | 2022-12-02 | 2023-06-23 | 哈尔滨工业大学 | Magnesium circulation membrane electrolysis/ceramic membrane filtration coupling device and application method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104324615A (en) * | 2014-11-21 | 2015-02-04 | 成都瑞芬思生物科技有限公司 | Micro-filtration membrane filtering device for bio-pharmaceuticals |
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| CN113877423A (en) * | 2021-11-10 | 2022-01-04 | 第一环保（深圳）股份有限公司 | Method for treating high organic waste liquid by using high-temperature-resistant ceramic silicon carbide film |
| CN113877423B (en) * | 2021-11-10 | 2024-04-02 | 第一环保（深圳）股份有限公司 | Method for treating high-organic waste liquid by high-temperature-resistant ceramic silicon carbide film |
| CN116282409A (en) * | 2022-12-02 | 2023-06-23 | 哈尔滨工业大学 | Magnesium circulation membrane electrolysis/ceramic membrane filtration coupling device and application method thereof |
| CN116282409B (en) * | 2022-12-02 | 2023-09-29 | 哈尔滨工业大学 | Magnesium circulation membrane electrolysis/ceramic membrane filtration coupling device and application method thereof |
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Effective date of registration: 20161009 Address after: 300450, Tianjin TEDA Development Zone, No. 19 TEDA Service Outsourcing Industrial Park No. 8, building 2 (Tianjin Binhai Service Outsourcing Industry Co., Ltd. trusteeship No. 2372nd) Patentee after: Tianjin Hui Hui Technology Development Co., Ltd. Address before: 300450, room 318, building 13-B, No. 4668 Xin Bei Lu, Binhai New Area, Tianjin, Tanggu Patentee before: BIN HAN Eco-Technologies Co., Ltd. |