CN111420452A - Cuprous cyanide washing and separating equipment and cuprous cyanide washing and separating method - Google Patents
Cuprous cyanide washing and separating equipment and cuprous cyanide washing and separating method Download PDFInfo
- Publication number
- CN111420452A CN111420452A CN202010251149.2A CN202010251149A CN111420452A CN 111420452 A CN111420452 A CN 111420452A CN 202010251149 A CN202010251149 A CN 202010251149A CN 111420452 A CN111420452 A CN 111420452A
- Authority
- CN
- China
- Prior art keywords
- cuprous cyanide
- washing
- vacuum belt
- belt filter
- suspension
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/04—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
- B01D33/62—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/92—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with helices or screws
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C3/00—Cyanogen; Compounds thereof
- C01C3/08—Simple or complex cyanides of metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/48—Mixing water in water-taps with other ingredients, e.g. air, detergents or disinfectants
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention belongs to the technical field of cuprous cyanide production, and discloses cuprous cyanide washing and separating equipment and a cuprous cyanide washing and separating method. The cuprous cyanide washing and separating equipment comprises a vacuum belt filter, wherein a feed hopper of the vacuum belt filter is connected with a discharge hole of a synthesis kettle; the discharge port of the vacuum belt filter is connected with a pulping barrel, and the discharge port of the pulping barrel is connected with the feed port of the centrifuge; and the vacuum belt filter is also provided with a washing water spray opening and a liquid discharge opening. The cuprous cyanide washing and separating device and the cuprous cyanide washing and separating method greatly reduce the water consumption in the cuprous cyanide washing and separating process, reduce the labor intensity of workers and improve the cuprous cyanide washing efficiency.
Description
Technical Field
The invention belongs to the technical field of cuprous cyanide production, and particularly relates to cuprous cyanide washing and separating equipment and a cuprous cyanide washing and separating method.
Background
Cuprous cyanide is the main raw material for copper plating electroplating liquefaction. The existing cuprous cyanide generating process basically adopts a washing barrel to wash in the aspect of a cuprous cyanide washing process, materials are synthesized, solid-liquid suspension is pumped into the washing barrel by a pump, the solid-liquid suspension is statically precipitated, mother liquor is extracted to the maximum extent, fine-particle white solid-phase substances are left, the white solid-phase substances are not carried out in extracting the mother liquor so as to avoid material loss, production water is added for stirring, the static precipitation is carried out, and the steps are repeated for three times until the content of sodium chloride is reduced to an allowable range.
The method for washing by using the washing barrel has the advantages of large water consumption, low production efficiency, high labor intensity and large material loss, is not suitable for large-scale production, and brings great restrictions on the improvement of the yield and the quality of cuprous cyanide.
Disclosure of Invention
In order to solve one or more technical problems in the prior art, the invention provides cuprous cyanide washing and separating equipment and a cuprous cyanide washing and separating method, and aims to save washing water and improve the washing efficiency of cuprous cyanide.
In order to achieve the purpose, the invention adopts the following technical scheme:
on one hand, the invention provides cuprous cyanide washing and separating equipment which comprises a vacuum belt filter, wherein a feed hopper of the vacuum belt filter is connected with a discharge hole of a synthesis kettle; the discharge port of the vacuum belt filter is connected with a pulping barrel, and the discharge port of the pulping barrel is connected with the feed port of the centrifuge; and the vacuum belt filter is also provided with a washing water spray opening and a liquid discharge opening.
Furthermore, a scraper is arranged at a discharge hole of the vacuum belt filter.
Further, the pulping barrel comprises a barrel body, a filter cake feeding hole is formed in one side of the top of the barrel body, and a suspension discharging hole is formed in one side of the bottom of the barrel body; the stirring device is characterized in that a stirring motor is arranged in the center of the top of the barrel, the output end of the stirring motor is connected with a stirring shaft, one end of the stirring motor, which is far away from the stirring shaft, extends into the barrel, and a plurality of stirring blades are arranged on the stirring shaft.
Furthermore, a plurality of washing water spray nozzles are arranged on the vacuum belt filter, and at least one washing water spray nozzle is a deionized water spray nozzle.
Further, the liquid outlet is connected with a sewage tank.
In another aspect, the present invention further provides a cuprous cyanide washing and separating method using the above cuprous cyanide washing and separating apparatus, the method comprising:
starting the vacuum belt filter, and adjusting and operating stably according to production requirements;
pouring the reacted cuprous cyanide suspension in the synthesis kettle into a feed hopper of a vacuum belt filter, and uniformly covering the cuprous cyanide suspension on a filter medium of the vacuum belt filter;
starting washing water, and continuously washing the cuprous cyanide suspension;
sucking dry the washing water to obtain cuprous cyanide filter cake;
sending the filter cake into a pulping cylinder, adding water and stirring to obtain a washed cuprous cyanide suspension;
and (4) conveying the washed cuprous cyanide suspension into a centrifugal machine for centrifugal treatment to obtain a cuprous cyanide finished product.
Further, during the continuous washing of the cuprous cyanide suspension, the method further comprises:
and observing the thickness and the dryness and humidity of the cuprous cyanide filter cake, and controlling the flow of the washing water based on the thickness and the dryness and humidity of the cuprous cyanide filter cake.
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects or advantages:
the cuprous cyanide washing and separating equipment and the cuprous cyanide washing and separating method provided by the invention greatly reduce the water consumption in the cuprous cyanide washing and separating process, reduce the labor intensity of workers and improve the cuprous cyanide washing efficiency.
Specific embodiments of the present invention are disclosed in detail with reference to the following description and drawings, indicating the manner in which the principles of the invention may be employed. It should be understood that the embodiments of the invention are not so limited in scope. The embodiments of the invention include many variations, modifications and equivalents within the spirit and scope of the appended claims.
Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.
It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps or components.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a cuprous cyanide washing and separating device provided by the embodiment of the invention;
fig. 2 is a flow chart of a cuprous cyanide washing separation method provided in the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that the indication of the orientation or the positional relationship is based on the orientation or the positional relationship shown in the drawings, or the orientation or the positional relationship which is usually placed when the product of the present invention is used, or the orientation or the positional relationship which is usually understood by those skilled in the art, or the orientation or the positional relationship which is usually placed when the product of the present invention is used, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, cannot be understood as limiting the present invention.
In the description of the embodiments of the present invention, it should be further noted that the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; may be directly connected or indirectly connected through an intermediate. For those skilled in the art, the drawings of the embodiments with specific meanings of the terms in the present invention can be understood in specific situations, and the technical solutions in the embodiments of the present invention are clearly and completely described. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Furthermore, the terms "first" and "second" are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
As shown in figure 1, the embodiment of the invention provides cuprous cyanide washing and separating equipment, which comprises a vacuum belt filter 1, wherein a feed hopper 11 of the vacuum belt filter 1 is connected with a discharge hole of a synthesis kettle 2; the discharge port of the vacuum belt filter 1 is connected with a pulping cylinder 3, and the discharge port of the pulping cylinder 3 is connected with the feed port of a centrifuge 4; the vacuum belt filter 1 is also provided with a washing water spray opening 12 and a liquid discharge opening.
Wherein, the vacuum belt filter 1 is a device which takes vacuum negative pressure as driving force to realize solid-liquid separation; under the action of vacuum negative pressure (0.04-0.07MPa), liquid in the suspension is pumped out through the filter medium (filter cloth) of the vacuum belt filter 1, and solid particles are intercepted by the medium, so that the separation of the liquid and the solid is realized. The filtering sections are arranged along the horizontal length direction in the structure, and can continuously complete the operations of filtering, washing, sucking, filter cloth regeneration and the like.
In a specific implementation process, since the filter cake is finally left on the vacuum belt filter 1, in order to enable the filter cake to smoothly enter the pulping barrel 3 from the discharge port of the vacuum belt filter 1, in a further embodiment, the embodiment of the invention is provided with a scraper 13 at the discharge port of the vacuum belt filter 1. When the filter cake is conveyed to the discharge opening of the vacuum belt filter 1, the scraper will peel the filter cake off the filter medium, so that the filter cake enters the beater tube 3 from the discharge opening.
In a specific implementation process, the beating cylinder is used for re-stirring the washed and dried filter cake into a suspension, in a further implementation scheme, the beating cylinder 3 in the embodiment of the invention comprises a cylinder body 31, a filter cake feeding hole 32 is arranged on one side of the top of the cylinder body 31, and a suspension discharging hole 33 is arranged on one side of the bottom of the cylinder body 31; the top center of barrel 31 is provided with agitator motor 34, and agitator motor 34's output is connected with (mixing) shaft 35, and the one end of keeping away from agitator motor 34 on the (mixing) shaft 35 stretches into the inside of barrel 31, and is provided with a plurality of stirring leaves 36 on the (mixing) shaft 35. In the embodiment of the present invention, the bottom of the cylinder 31 is inclined, and the suspension discharge port 33 is disposed at the lowest position of the bottom of the cylinder 31.
In a specific implementation process, in order to better wash the cuprous cyanide, in a further embodiment, a plurality of washing water spray nozzles 12 are arranged on the vacuum belt filter 1 in the embodiment of the invention, and at least one washing water spray nozzle 12 is a deionized water spray nozzle. The plurality of washing water spray nozzles 12 are arranged, so that cuprous cyanide can be better washed, and at least one deionized water spray nozzle is arranged, so that impurities in cuprous cyanide can be better removed. It should be noted that the deionized water spray nozzles in the embodiment of the present invention are disposed at the extreme ends of the plurality of washing water spray nozzles.
In a further embodiment, the liquid discharge port of the vacuum belt filter 1 is connected with the sewage discharge tank, so that the wastewater generated in the washing process is prevented from directly entering the environment and causing environmental pollution.
Based on the cuprous cyanide washing and separating device, the invention also provides a cuprous cyanide washing and separating method using the cuprous cyanide washing and separating device, as shown in fig. 2, the method comprises the following steps:
step S1: starting the vacuum belt filter, and adjusting and operating stably according to production requirements;
step S2: pouring the reacted cuprous cyanide suspension in the synthesis kettle into a feed hopper of a vacuum belt filter, and uniformly covering the cuprous cyanide suspension on a filter medium of the vacuum belt filter;
step S3: starting washing water, and continuously washing the cuprous cyanide suspension;
step S4: sucking dry the washing water to obtain cuprous cyanide filter cake;
step S5: sending the filter cake into a pulping cylinder, adding water and stirring to obtain a washed cuprous cyanide suspension;
step S6: and (4) conveying the washed cuprous cyanide suspension into a centrifugal machine for centrifugal treatment to obtain a cuprous cyanide finished product.
Wherein the step S3 and the step S4 are both completed by the cuprous cyanide washing and separating device.
In a specific implementation process, in order to save water while ensuring the washing effect, in a further embodiment, in the continuous washing process of the cuprous cyanide suspension, the method further includes:
and observing the thickness and the dryness and humidity of the cuprous cyanide filter cake, and controlling the flow of the washing water based on the thickness and the dryness and humidity of the cuprous cyanide filter cake.
Through observing the thickness and the humidity of cuprous cyanide filter cake, and based on the thickness and the humidity of cuprous cyanide filter cake are right the flow of washing water is controlled, can be under the condition of guaranteeing the washing effect, reasonable water, water economy resource and manufacturing cost.
The cuprous cyanide washing and separating equipment and the cuprous cyanide washing and separating method provided by the embodiment of the invention greatly reduce the water consumption in the cuprous cyanide washing and separating process, reduce the labor intensity of workers and improve the cuprous cyanide washing efficiency.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The cuprous cyanide washing and separating equipment is characterized by comprising a vacuum belt filter, wherein a feed hopper of the vacuum belt filter is connected with a discharge hole of a synthesis kettle; the discharge port of the vacuum belt filter is connected with a pulping barrel, and the discharge port of the pulping barrel is connected with the feed port of the centrifuge; and the vacuum belt filter is also provided with a washing water spray opening and a liquid discharge opening.
2. A cuprous cyanide washing separation device according to claim 1, characterized in that the discharge hole of the vacuum belt filter is provided with a scraper.
3. The cuprous cyanide washing and separating device of claim 1, wherein the pulping barrel comprises a barrel body, a filter cake feeding hole is formed in one side of the top of the barrel body, and a suspension discharging hole is formed in one side of the bottom of the barrel body; the stirring device is characterized in that a stirring motor is arranged in the center of the top of the barrel, the output end of the stirring motor is connected with a stirring shaft, one end of the stirring motor, which is far away from the stirring shaft, extends into the barrel, and a plurality of stirring blades are arranged on the stirring shaft.
4. A cuprous cyanide washing separation device according to claim 1, wherein said washing water spray nozzles on said vacuum belt filter are provided in plurality, and wherein at least one of said washing water spray nozzles is a deionized water spray nozzle.
5. A cuprous cyanide washing separation device according to claim 1, wherein said drain is connected to a sewage run tank.
6. A cuprous cyanide washing separation method using the cuprous cyanide washing separation device of any one of claims 1 to 5, wherein the method comprises:
starting the vacuum belt filter, and adjusting and operating stably according to production requirements;
pouring the reacted cuprous cyanide suspension in the synthesis kettle into a feed hopper of a vacuum belt filter, and uniformly covering the cuprous cyanide suspension on a filter medium of the vacuum belt filter;
starting washing water, and continuously washing the cuprous cyanide suspension;
sucking dry the washing water to obtain cuprous cyanide filter cake;
sending the filter cake into a pulping cylinder, adding water and stirring to obtain a washed cuprous cyanide suspension;
and (4) conveying the washed cuprous cyanide suspension into a centrifugal machine for centrifugal treatment to obtain a cuprous cyanide finished product.
7. A cuprous cyanide washing separation process according to claim 6, wherein during continuous washing of said cuprous cyanide suspension, said process further comprises:
and observing the thickness and the dryness and humidity of the cuprous cyanide filter cake, and controlling the flow of the washing water based on the thickness and the dryness and humidity of the cuprous cyanide filter cake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010251149.2A CN111420452A (en) | 2020-04-01 | 2020-04-01 | Cuprous cyanide washing and separating equipment and cuprous cyanide washing and separating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010251149.2A CN111420452A (en) | 2020-04-01 | 2020-04-01 | Cuprous cyanide washing and separating equipment and cuprous cyanide washing and separating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111420452A true CN111420452A (en) | 2020-07-17 |
Family
ID=71550777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010251149.2A Pending CN111420452A (en) | 2020-04-01 | 2020-04-01 | Cuprous cyanide washing and separating equipment and cuprous cyanide washing and separating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111420452A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114452713A (en) * | 2022-02-15 | 2022-05-10 | 广东广物金属产业集团有限公司 | Tailing treatment device and tailing treatment method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004302098A (en) * | 2003-03-31 | 2004-10-28 | Nippon Zeon Co Ltd | Method for manufacturing polymerized toner |
| CN102503190A (en) * | 2011-10-24 | 2012-06-20 | 新疆蓝天镁业股份有限公司 | Method and device for preparing high-purity high-density magnesia by utilizing magnesite |
| CN102942198A (en) * | 2012-10-16 | 2013-02-27 | 桐柏兴源化工有限公司 | Method for producing low chlorine high purity magnesia by soda ash method |
| CN203436911U (en) * | 2013-07-10 | 2014-02-19 | 信发科技开发有限公司 | Matched material conveying device of belt filter group |
| CN204073954U (en) * | 2014-05-22 | 2015-01-07 | 辽宁石化职业技术学院 | A kind of chemical industry mixing drum |
| CN105983266A (en) * | 2015-02-13 | 2016-10-05 | 江苏扬农化工集团有限公司 | Continuous washing and separating method of polyphenylene sulfide |
| CN106178661A (en) * | 2016-08-13 | 2016-12-07 | 安徽东至广信农化有限公司 | A kind of carbendazim production vacuum band-type filter machine |
| CN209155230U (en) * | 2018-10-30 | 2019-07-26 | 津榕(福建)明胶科技有限公司 | One kind may filter that lye fast-collection device |
-
2020
- 2020-04-01 CN CN202010251149.2A patent/CN111420452A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004302098A (en) * | 2003-03-31 | 2004-10-28 | Nippon Zeon Co Ltd | Method for manufacturing polymerized toner |
| CN102503190A (en) * | 2011-10-24 | 2012-06-20 | 新疆蓝天镁业股份有限公司 | Method and device for preparing high-purity high-density magnesia by utilizing magnesite |
| CN102942198A (en) * | 2012-10-16 | 2013-02-27 | 桐柏兴源化工有限公司 | Method for producing low chlorine high purity magnesia by soda ash method |
| CN203436911U (en) * | 2013-07-10 | 2014-02-19 | 信发科技开发有限公司 | Matched material conveying device of belt filter group |
| CN204073954U (en) * | 2014-05-22 | 2015-01-07 | 辽宁石化职业技术学院 | A kind of chemical industry mixing drum |
| CN105983266A (en) * | 2015-02-13 | 2016-10-05 | 江苏扬农化工集团有限公司 | Continuous washing and separating method of polyphenylene sulfide |
| CN106178661A (en) * | 2016-08-13 | 2016-12-07 | 安徽东至广信农化有限公司 | A kind of carbendazim production vacuum band-type filter machine |
| CN209155230U (en) * | 2018-10-30 | 2019-07-26 | 津榕(福建)明胶科技有限公司 | One kind may filter that lye fast-collection device |
Non-Patent Citations (1)
| Title |
|---|
| 吴秀玲，李公斌主编: "《微生物制药技术》", 31 January 2015, 北京：中国轻工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114452713A (en) * | 2022-02-15 | 2022-05-10 | 广东广物金属产业集团有限公司 | Tailing treatment device and tailing treatment method |
| CN114452713B (en) * | 2022-02-15 | 2024-04-12 | 广东广物金属产业集团有限公司 | Tailing treatment device and tailing treatment method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2002122766A (en) | METHOD FOR ISOLATING RAW TERPHTHALIC ACID (STK) | |
| CN207811277U (en) | A kind of green silicon carbide powder production system | |
| CN108219135B (en) | Continuous washing device of polyphenylene sulfide resin | |
| CN105983266A (en) | Continuous washing and separating method of polyphenylene sulfide | |
| CN108910924A (en) | A kind of precipitation energy conservation preparation method of boehmite | |
| CN111420452A (en) | Cuprous cyanide washing and separating equipment and cuprous cyanide washing and separating method | |
| CN110075592A (en) | Spiral filtration rinsing maching | |
| CN107875990A (en) | A kind of continuous alkaline cleaner and technique | |
| CN218502609U (en) | Sweet potato starch production and processing is with quick size mixing device | |
| CN211133171U (en) | Spiral filtering washing machine | |
| CN106925418B (en) | A kind of apparatus system and method for chromium slag washing | |
| CN208517541U (en) | A kind of micro-etched waste liquid industrial high-efficient processing unit | |
| CN207654791U (en) | A kind of twin-stage honey filtering mixing arrangement | |
| CN107099660A (en) | A kind of leaching of Rare Earth Production, alkali turn, excellent molten, removal of impurities and precipitation technique | |
| CN101838087A (en) | Anode mud treatment equipment and air flotation slot thereof | |
| CN201200831Y (en) | Vacuum band filter | |
| CN201648192U (en) | Anode mud treatment equipment and air-flotation tank thereof | |
| CN207187161U (en) | Post-treatment device for ditrimethylolpropane | |
| CN101838088A (en) | Anode mud treatment method | |
| CN218516657U (en) | Novel washing equipment for cyclodextrin polymer modification production process | |
| CN217567586U (en) | Sodium sulfite continuous washing and separating device | |
| CN217614672U (en) | Bile acid continuous refining production line | |
| CN214210724U (en) | Automatic rice washing batching machine | |
| CN216172316U (en) | Washing kettle for producing 4, 4-dichloromethyl biphenyl | |
| CN1056208C (en) | Technique and equipment for separating papermaking pulping fibre from waste liquor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200717 |