CN112023704A - Ceramic membrane equipment for cleaning barium titanate superfine powder - Google Patents

Ceramic membrane equipment for cleaning barium titanate superfine powder Download PDF

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Publication number
CN112023704A
CN112023704A CN202010812004.5A CN202010812004A CN112023704A CN 112023704 A CN112023704 A CN 112023704A CN 202010812004 A CN202010812004 A CN 202010812004A CN 112023704 A CN112023704 A CN 112023704A
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CN
China
Prior art keywords
membrane
ceramic
ceramic membrane
shell
barium titanate
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
Application number
CN202010812004.5A
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Chinese (zh)
Inventor
禹磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HEFEI YUWANG MEMBRANE ENGINEERING TECHNOLOGY CO LTD
Original Assignee
HEFEI YUWANG MEMBRANE ENGINEERING TECHNOLOGY CO LTD
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by HEFEI YUWANG MEMBRANE ENGINEERING TECHNOLOGY CO LTD filed Critical HEFEI YUWANG MEMBRANE ENGINEERING TECHNOLOGY CO LTD
Priority to CN202010812004.5A priority Critical patent/CN112023704A/en
Publication of CN112023704A publication Critical patent/CN112023704A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/58Multistep processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D65/00Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/02Membrane cleaning or sterilisation ; Membrane regeneration
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G23/00Compounds of titanium
    • C01G23/003Titanates
    • C01G23/006Alkaline earth titanates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2321/00Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/04Backflushing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2321/00Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/18Use of gases

Abstract

The invention discloses ceramic membrane equipment for cleaning barium titanate ultrafine powder, which comprises a multistage ceramic membrane, wherein the multistage ceramic membrane comprises a membrane shell, the membrane shell comprises a membrane groove and a membrane cover arranged on the membrane groove, at least two membrane cavities which are mutually isolated are continuously arranged in the membrane groove, a ceramic membrane is respectively arranged in each membrane cavity, and the end, close to the opening part of the membrane groove, of the ceramic membrane penetrates through the membrane cover and is connected with a clear liquid outlet; the membrane shell support is fixed with the membrane shell and arranged on the membrane shell mounting rack, the membrane shell support comprises two connecting shafts which are oppositely arranged and the axis of the connecting shafts penetrates through the center of the membrane shell, and the connecting shafts are connected with rotating mechanisms; according to the ceramic membrane equipment disclosed by the invention, the ceramic membrane is detached and independently backwashed, the backwashing mode is diversified, the backwashing effect is good, the membrane regeneration capacity is strong, the ceramic membrane is detached and regenerated, the operation is quick, and the long-time regeneration of the ceramic membrane equipment is avoided.

Description

Ceramic membrane equipment for cleaning barium titanate superfine powder
Technical Field
The invention belongs to the field of superfine powder processing equipment, and particularly relates to ceramic membrane equipment for cleaning barium titanate superfine powder.
Background
The barium titanate ultrafine powder is an important chemical raw material, and has found that the barium titanate ultrafine powder has wide application in the aspect of manufacturing electronic components in recent years, particularly important raw materials in the aspect of manufacturing PCT thermistors, high-performance electronic ceramics and capacitors, and with the further research, the barium titanate ultrafine powder has seen that the barium titanate ultrafine powder can make the electronic components have more outstanding advantages in the aspects of large capacity, miniaturization, thin film formation and diversification. Therefore, many methods for producing barium titanate ultrafine powder have been studied in the prior art based on the advantages, properties and effects of barium titanate ultrafine powder. In the prior art, a plurality of methods are provided for producing barium titanate products with less impurities, high purity and fine granularity by using a simpler method so as to meet the increasing market demands, wherein barium titanate ultrafine powder is mainly cleaned.
In the prior art, the superfine powder cleaning equipment is mature, and a ceramic membrane is mostly adopted for cleaning to remove solute ions and the like in the mixed liquid of the barium titanate superfine powder. In the prior art, after the ceramic membrane equipment for cleaning the superfine powder is used for a period of time, membrane backwashing regeneration needs to be carried out, the regeneration time is long, and the washing working efficiency of the barium titanate superfine powder is influenced. And a physical regeneration method is mostly adopted during regeneration, the regeneration effect is poor, and the service life of the ceramic membrane is shortened.
Disclosure of Invention
The invention aims to provide ceramic membrane equipment for cleaning barium titanate ultrafine powder, which is characterized in that a ceramic membrane is detached and independently backwashed, the backwashing mode is diversified, the backwashing effect is good, the membrane regeneration capacity is strong, the ceramic membrane is detached and regenerated, the operation is quick, the long-time regeneration of the ceramic membrane equipment is avoided, and the washing efficiency of the barium titanate ultrafine powder is improved.
The invention relates to ceramic membrane equipment for cleaning barium titanate ultrafine powder, which comprises a multi-stage ceramic membrane, wherein the multi-stage ceramic membrane comprises a membrane shell, the membrane shell comprises a membrane groove and a membrane cover arranged on the membrane groove, at least two membrane cavities which are mutually isolated are continuously arranged in the membrane groove, a ceramic membrane is respectively arranged in each membrane cavity, and the end, close to the mouth part of the membrane groove, of the ceramic membrane penetrates through the membrane cover and is connected with a clear liquid outlet;
the membrane shell is outside to be provided with membrane shell support and membrane shell mounting bracket, the membrane shell support is fixed with the membrane shell, the membrane shell support is arranged in on the membrane shell mounting bracket, the membrane shell support includes that two are relative setting and axis pass the connecting axle at membrane shell center, be connected with rotary mechanism on the connecting axle, rotary mechanism passes through the connecting axle and drives the membrane shell rotatory.
Preferably, a ceramic membrane fixing mechanism is arranged in the membrane cavity and comprises a plurality of limiting rods uniformly distributed in the membrane cavity, all limiting rods surround a cylindrical area for accommodating the ceramic membrane, and the ceramic membrane is arranged in the cylindrical area.
Preferably, the membrane cover is provided with a through hole, the ceramic membrane extends out of the through hole, a sealing ring and a fixing flange are sleeved on the ceramic membrane outside the through hole, the fixing flange is detachably connected with the membrane cover, a pipe joint communicated with the inside of the ceramic membrane is arranged on the fixing flange, and the clear liquid outlet is connected with the pipe joint.
Preferably, the rotating mechanism comprises a motor, a driving gear is driven on the motor, a driven gear is meshed on the driving gear, and the driven gear is fixed on the connecting shaft.
Preferably, equally divide on the membrane chamber and do not be provided with inlet and liquid outlet, the inlet on the first membrane chamber is connected with the head tank, and the liquid outlet on the preceding membrane chamber is connected with the inlet in the back membrane chamber, all is connected with fluid-discharge tube and circulating pipe on the liquid outlet.
The ceramic membrane equipment for cleaning the barium titanate ultrafine powder, which adopts the technical scheme, has the beneficial effects that:
1. the ceramic membrane can be detached in the washing process for regeneration, so that the problem of long regeneration time of the ceramic membrane in ceramic membrane equipment is solved, and the working efficiency of washing the barium titanate ultrafine powder is improved. And the ceramic membrane is disassembled for regeneration, and various regeneration modes can be selected, so that the regeneration capacity of the ceramic membrane is improved, and the service life of the ceramic membrane is prolonged.
2. At least two mutually isolated film cavities are continuously arranged in the film groove, so that any stage washing process can be realized, and the washing efficiency is improved.
Drawings
FIG. 1 is a schematic view of the structure of a ceramic membrane equipment for cleaning barium titanate ultrafine powder according to the technical scheme of the present invention, i.e. a schematic view in a washing working state,
FIG. 2 is a schematic diagram of a ceramic membrane apparatus for cleaning barium titanate ultrafine powder according to the technical scheme of the present invention in a state when a ceramic membrane is disassembled,
figure 3 is a top view of the multi-stage ceramic membrane of figure 2,
fig. 4 is a schematic structural view of the multistage ceramic membrane of fig. 2.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
As shown in fig. 1 and 4, the ceramic membrane equipment for cleaning barium titanate ultrafine powder according to the technical solution of the present invention includes a multi-stage ceramic membrane 1, where the multi-stage ceramic membrane 1 includes a membrane shell, and the membrane shell includes a membrane tank 104 and a membrane cover 105 disposed on the membrane tank 104. At least two isolated membrane cavities 101/102/103 are continuously disposed in the membrane tank 104, and each membrane cavity is provided with a ceramic membrane 100. During washing, the first membrane cavity (the membrane cavity 101) is bound to participate in washing work, and then any one of the continuous membrane cavities behind the first membrane cavity (the membrane cavity 101) can be selected to participate in washing work. By adopting the technical scheme, the mixed solution can pass through the ceramic membranes 100 once for circulation, so that multiple times of washing and concentration can be realized, and under some conditions (such as the conditions of low solute ion content or similar solute ion particle sizes in the mixed solution), the mixed solution can directly pass through the ceramic membranes and is finally directly discharged to the next procedure without multiple times of circulation, so that the washing efficiency is improved.
As shown in fig. 1 and 4, the ceramic membrane 100 passes through the membrane cover 105 near the mouth end of the membrane tank 104 and is connected to the clear liquid outlet 17. The clear liquid outlet 17 is disposed outside the membrane cover 105 to facilitate the disassembly of the ceramic membrane 100. During the washing operation of the multi-stage ceramic membrane 1, various valves and pumps are temporarily closed, and the ceramic membrane 100 is detached without emptying the membrane tank 104, and is subjected to individual regeneration or specific process regeneration, and the ceramic membrane is replaced to realize continuous washing. The operation is simple and quick, the problem that the washing efficiency and time are influenced by the regeneration of the ceramic membrane is avoided, and the washing working efficiency is improved.
As shown in fig. 1, 2 and 4, a membrane shell support 31 and a membrane shell mounting rack 33 are arranged outside the membrane shell, the membrane shell support 31 is fixed with the membrane shell, and the membrane shell support 31 is arranged on the membrane shell mounting rack 33 to realize the fixed mounting of the membrane shell. The membrane shell support 31 comprises two connecting shafts 32 which are oppositely arranged and the axes of which penetrate through the center of the membrane shell, and the connecting shafts 32 are connected with a rotating mechanism which drives the membrane shell to rotate through the connecting shafts 32. During washing, the ceramic membrane 100 is disposed at the outer end of the membrane cover 105 downward to facilitate discharge of solute ions and clean water from the downward directed clean water outlet 17. When the ceramic membrane 100 is disassembled, the clear liquid outlet 17 needs to be upward to avoid overflowing of water flow, and the rotating mechanism drives the membrane shell to rotate 90 degrees when the ceramic membrane 100 needs to be disassembled, so that the clear liquid outlet 17 is upward to rotate to the state shown in fig. 2.
As shown in fig. 1, the rotating mechanism includes a motor 34, a driving gear 36 is driven by the motor 34, a driven gear 35 is engaged with the driving gear 36, and the driven gear 35 is fixed on the connecting shaft 32. The motor 34 adopts a servo motor to realize automatic control, and the driving gear 36 adopts a sector gear to ensure that the rotating angle of the connecting shaft 32 and the membrane shell is 90 degrees each time.
As shown in fig. 3 and 4, a ceramic membrane fixing mechanism is disposed in the membrane cavity, the ceramic membrane fixing mechanism includes a plurality of limiting rods 21 uniformly distributed in the membrane cavity, all limiting rods 21 enclose a cylindrical region for accommodating the ceramic membrane 100, and the ceramic membrane 100 is disposed in the cylindrical region. The ceramic membrane 100 is cylindrical, one end of the ceramic membrane is closed, and the other end of the ceramic membrane is open, and the open end of the ceramic membrane is connected with a clear liquid outlet 17 extending out of the membrane cover.
As shown in fig. 4, the membrane cover 105 is provided with a through hole 26, the ceramic membrane 100 extends from the through hole 26, the ceramic membrane 100 outside the through hole 26 is sleeved with a sealing ring 23 and a fixing flange 24, the fixing flange 24 is detachably connected with the membrane cover 105, the fixing flange 24 is provided with a pipe joint 25 communicated with the inside of the ceramic membrane 100, and the clear liquid outlet 17 is connected with the pipe joint 25. When the ceramic membrane 100 is disassembled, the ceramic membrane is taken out after the fixing flange 24 is disassembled, and the operation is convenient and quick.
As shown in fig. 1, a liquid inlet 11/15/13 and a liquid outlet 16/12/14 are respectively arranged on each film cavity 101/102/103, a liquid inlet 11 on the first film cavity (film cavity 101) is connected with a raw material tank, a liquid outlet (liquid outlet 16 or liquid outlet 12) on the previous film cavity (film cavity 101 or film cavity 102) is connected with a liquid inlet (liquid inlet 15 or liquid inlet 13) on the next film cavity (film cavity 102 or film cavity 103), and a liquid outlet 19 and a circulating pipe 18 are respectively connected on each liquid outlet 16/12/14. The design of this structure for can wash as required the membrane cavity of rationally selecting different levels, improve washing efficiency.
In the invention, all parts which are mixed with and contact with the barium titanate nanometer superfine powder are made of acid-resistant and alkali-resistant materials, such as stainless steel, UPVC, PP, PTFE and the like. In the washing process, each pump valve is automatically controlled by electromagnetism, the whole equipment is fully automatically controlled by a PLC, and the labor intensity is low.
It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art and related arts based on the embodiments of the present invention without any creative effort, shall fall within the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.

Claims (5)

1. The ceramic membrane equipment for cleaning the barium titanate ultrafine powder is characterized by comprising a multi-stage ceramic membrane, wherein the multi-stage ceramic membrane comprises a membrane shell, the membrane shell comprises a membrane groove and a membrane cover arranged on the membrane groove, at least two membrane cavities which are mutually isolated are continuously arranged in the membrane groove, a ceramic membrane is respectively arranged in each membrane cavity, and the end, close to the mouth of the membrane groove, of the ceramic membrane penetrates through the membrane cover and is connected with a clear liquid outlet;
the membrane shell is outside to be provided with membrane shell support and membrane shell mounting bracket, the membrane shell support is fixed with the membrane shell, the membrane shell support is arranged in on the membrane shell mounting bracket, the membrane shell support includes that two are relative setting and axis pass the connecting axle at membrane shell center, be connected with rotary mechanism on the connecting axle, rotary mechanism passes through the connecting axle and drives the membrane shell rotatory.
2. The ceramic membrane equipment for cleaning the barium titanate ultrafine powder according to claim 1, wherein a ceramic membrane fixing mechanism is arranged in the membrane cavity, the ceramic membrane fixing mechanism comprises a plurality of limiting rods uniformly distributed in the membrane cavity, all limiting rods enclose a cylindrical area for containing the ceramic membrane, and the ceramic membrane is arranged in the cylindrical area.
3. The ceramic membrane equipment for cleaning the barium titanate ultrafine powder according to claim 1, wherein the membrane cover is provided with a through hole, the ceramic membrane extends out of the through hole, a sealing ring and a fixing flange are sleeved on the ceramic membrane outside the through hole, the fixing flange is detachably connected with the membrane cover, a pipe joint communicated with the inside of the ceramic membrane is arranged on the fixing flange, and the clear liquid outlet is connected with the pipe joint.
4. The ceramic membrane equipment for cleaning the barium titanate ultrafine powder according to claim 1, wherein the rotating mechanism comprises a motor, a driving gear is driven by the motor, a driven gear is engaged with the driving gear, and the driven gear is fixed on the connecting shaft.
5. The ceramic membrane equipment for cleaning the barium titanate ultrafine powder according to claim 1, wherein the membrane cavities are respectively provided with a liquid inlet and a liquid outlet, the liquid inlet on the first membrane cavity is connected with the raw material tank, the liquid outlet on the previous membrane cavity is connected with the liquid inlet on the next membrane cavity, and the liquid outlets are respectively connected with a liquid discharge pipe and a circulating pipe.
CN202010812004.5A 2020-08-13 2020-08-13 Ceramic membrane equipment for cleaning barium titanate superfine powder Pending CN112023704A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010812004.5A CN112023704A (en) 2020-08-13 2020-08-13 Ceramic membrane equipment for cleaning barium titanate superfine powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010812004.5A CN112023704A (en) 2020-08-13 2020-08-13 Ceramic membrane equipment for cleaning barium titanate superfine powder

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Publication Number Publication Date
CN112023704A true CN112023704A (en) 2020-12-04

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CN202010812004.5A Pending CN112023704A (en) 2020-08-13 2020-08-13 Ceramic membrane equipment for cleaning barium titanate superfine powder

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009092821A1 (en) * 2008-01-25 2009-07-30 David Ulmert Treatment of biological sludge
CN102309922A (en) * 2011-05-16 2012-01-11 蚌埠鑫源石英材料有限公司 Method for penetration cleaning of ultra-fine inorganic powder slurry
CN206045794U (en) * 2016-09-13 2017-03-29 纳琳威纳米科技(上海)有限公司 Ceramic Membrane cleaning and enrichment facility based on nano powder slurry
CN106955622A (en) * 2017-04-21 2017-07-18 滁州钰禾文具制品有限公司 A kind of medical packaging produces printing high-efficiency stirring equipment
CN108339404A (en) * 2017-12-25 2018-07-31 合肥万呈鑫陶瓷膜科技有限公司 A kind of new and effective ceramic membrane
CN110038339A (en) * 2019-05-31 2019-07-23 上海宇豪环境工程有限公司 A kind of purpose ceramic-film filter
CN111408274A (en) * 2020-03-30 2020-07-14 苏州热工研究院有限公司 Inorganic ceramic membrane component

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009092821A1 (en) * 2008-01-25 2009-07-30 David Ulmert Treatment of biological sludge
CN102309922A (en) * 2011-05-16 2012-01-11 蚌埠鑫源石英材料有限公司 Method for penetration cleaning of ultra-fine inorganic powder slurry
CN206045794U (en) * 2016-09-13 2017-03-29 纳琳威纳米科技(上海)有限公司 Ceramic Membrane cleaning and enrichment facility based on nano powder slurry
CN106955622A (en) * 2017-04-21 2017-07-18 滁州钰禾文具制品有限公司 A kind of medical packaging produces printing high-efficiency stirring equipment
CN108339404A (en) * 2017-12-25 2018-07-31 合肥万呈鑫陶瓷膜科技有限公司 A kind of new and effective ceramic membrane
CN110038339A (en) * 2019-05-31 2019-07-23 上海宇豪环境工程有限公司 A kind of purpose ceramic-film filter
CN111408274A (en) * 2020-03-30 2020-07-14 苏州热工研究院有限公司 Inorganic ceramic membrane component

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
严春杰: "《稀土生产废水处理技术》", 31 May 2016 *

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Application publication date: 20201204