CN211462268U - Vacuum suction filtration integrated device - Google Patents
Vacuum suction filtration integrated device Download PDFInfo
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- CN211462268U CN211462268U CN201922420687.5U CN201922420687U CN211462268U CN 211462268 U CN211462268 U CN 211462268U CN 201922420687 U CN201922420687 U CN 201922420687U CN 211462268 U CN211462268 U CN 211462268U
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Abstract
The utility model relates to the technical field of chemical equipment, in particular to a vacuum filtration integrated device, which comprises a reaction kettle, a filter tank, a filtration tank and a liquid storage tank, wherein the bottom of the reaction kettle is communicated with the top of the filter tank through a first discharge pipe; the bottom of the filtering tank is communicated with the suction filtering tank through a second discharge pipe, and the top of the suction filtering tank is provided with a vacuumizing device; the bottom of the suction filtration tank is connected with the top of the reaction kettle through a circulating pipe, and a circulating pump is arranged in the circulating pipe; the circulating pipe is communicated with the top of the liquid storage tank through a connecting pipe, the bottom of the liquid storage tank is communicated with the circulating pipe through a pipeline, and the pipeline is provided with a material conveying pump. The utility model has scientific and reasonable design and simple structure, and compared with the prior art, the reaction kettle, the filter tank, the suction filtration tank, the liquid storage tank and the reaction kettle are integrally connected, thereby having convenient operation and high efficiency of processing reaction solution; in the whole process, the solution and the solid are in a closed space to finish the collection and drying processes, and the solution does not contact air, so that the stability of the solution is greatly improved.
Description
Technical Field
The utility model belongs to the technical field of chemical industry equipment's technique and specifically relates to a vacuum filtration integrated device is related to.
Background
In the production process of various chemical industry fields, solid-liquid filtration and separation operations are often required, vacuum filtration is a common solid-liquid separation process, and the vacuum filtration is a device for realizing solid-liquid separation by taking vacuum negative pressure as a driving force to obtain high-purity liquid or solid.
In the prior art, the whole set of vacuum filtration apparatus is generally divided into the following blocks: the reaction, the suction filtration and the drying are generally carried out, the reaction solution is gradually poured into a suction filtration bottle for vacuum filtration after the reaction is finished, the vacuum filtration needs to be stopped after the filtrate is full, then the filtrate is collected or recycled into a reaction kettle for reaction, and the solid collection is dried and collected. The whole process is complicated and inefficient, and the filtrate and solid collection are frequently exposed to air, which is very disadvantageous for some substances which are sensitive to oxidation.
Disclosure of Invention
The utility model aims at providing a vacuum filtration integrated device, it has solved the problem of current vacuum filtration device inefficiency and filtrating and the easy contact air of solid.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
a vacuum filtration integrated device comprises a reaction kettle, a filter tank, a filtration tank and a liquid storage tank, wherein the bottom of the reaction kettle is communicated with the top of the filter tank through a first discharge pipe, and the first discharge pipe is provided with a valve; the bottom of the filtering tank is communicated with the filtering tank through a second discharging pipe, the second discharging pipe is provided with a valve, and the top of the filtering tank is provided with a vacuumizing device; the bottom of the suction filtration tank is connected with the top of the reaction kettle through a circulating pipe, valves are arranged at two ends of the circulating pipe, a circulating pump is arranged in the circulating pipe, and the circulating pump is positioned between two groups of valves of the circulating pipe; the circulating pipe is communicated with the top of the liquid storage tank through a connecting pipe, the connecting pipe is located between the two groups of valves, the valves are arranged in the connecting pipe, the bottom of the liquid storage tank is communicated with the circulating pipe through a pipeline, the pipeline is located between the two groups of valves, the valves are arranged at two ends of the pipeline, and a material conveying pump is arranged on the pipeline between the two groups of valves.
By adopting the technical scheme, the materials are placed in the reaction kettle, the mixed solution is formed after the materials react in the reaction kettle, and the valve of the first discharge pipe is opened, so that the solution enters the filter tank through the first discharge pipe for filtration; opening a valve of the second discharge pipe to enable the filtered solution to enter the suction filtration tank, and then, vacuumizing the suction filtration tank to be in a vacuum state by using a vacuumizing device; after the solution in the suction filtration tank is filled, the valve of the circulating pipe close to the suction filtration tank is opened, the valve of the circulating pipe close to the reaction kettle is closed, the valve of the connecting pipe is opened, and the circulating pump is started, so that the solution in the suction filtration tank is pumped into the liquid storage tank. If the solution in the suction filtration tank is reaction solution, two groups of valves of the circulating pipe can be opened, and the circulating pump is started, so that the solution in the suction filtration tank is pumped into the reaction kettle for reuse; if the solution in the liquid storage tank is reaction liquid, two valves in the pipeline can be opened, the valve close to the reaction kettle in the circulating pipe is opened, and the material conveying pump is started, so that the solution in the liquid storage tank is pumped into the reaction kettle for reuse. The utility model has scientific and reasonable design and simple structure, and compared with the prior art, the reaction kettle, the filter tank, the suction filtration tank, the liquid storage tank and the reaction kettle are integrally connected, thereby having convenient operation and high efficiency of processing reaction solution; in the whole process, the solution and the solid are in a closed space to finish the collecting and drying processes, and do not contact with air, so that the stability of the solution is greatly improved, and the volatilization of partial components in the solution and the reaction with the air are avoided; in the suction filtration tank, the post-vacuum filtration stage and the drying of the solid materials are carried out simultaneously, which is equivalent to drying under the action of vacuum suction, so that the drying speed of the solid materials is greatly increased, and the energy consumption is reduced; the intermittent operation in the traditional vacuum filtration process is avoided, after the filtrate is full, the vacuumizing device needs to be stopped for vacuumizing, the filtrate is poured out and then is continuously vacuumized, and the device can be used for transferring the filtrate to a liquid storage tank or a reaction kettle in the vacuumizing process to keep the continuity of the whole process.
The utility model discloses further set up to: the reaction kettle is provided with a stirring device, the stirring device comprises a servo motor, a stirring shaft and a stirring blade, the servo motor is fixed with the stirring shaft, the stirring shaft can rotatably stretch into the reaction kettle, and the stirring blade is arranged at one end, far away from the servo motor, of the stirring shaft.
Through adopting above-mentioned technical scheme, start servo motor, servo motor orders about the (mixing) shaft and rotates, and the (mixing) shaft rotates with stirring leaf synchronous revolution to order about the solution motion in the reation kettle, thereby improve the reaction efficiency of solution.
The utility model discloses further set up to: a manhole is arranged at the top of the reaction kettle.
Through adopting above-mentioned technical scheme, utilize the manhole to get into in the reation kettle to overhaul reation kettle and agitating unit.
The utility model discloses further set up to: the outer wall of the reaction kettle is provided with a first heating jacket, and the first heating jacket extends from the middle upper part to the bottom of the reaction kettle.
Through adopting above-mentioned technical scheme, first heating jacket heats reation kettle to solution to in the reation kettle heats, is favorable to improving the reaction efficiency of the solution in the reation kettle.
The utility model discloses further set up to: the filter tank is internally provided with a filter plate which is horizontally arranged in the filter tank.
Through adopting above-mentioned technical scheme, the filter filters the solution that gets into the filter tank for liquid and solid in the solution separate.
The utility model discloses further set up to: the filter tank is provided with an opening for taking materials, the filter tank is provided with a movable door for covering the opening, and the movable door is positioned above the filter plate.
Through adopting above-mentioned technical scheme, open the dodge gate to take away the solid of arranging on the filter.
The utility model discloses further set up to: the outer wall of the filtering tank is provided with a second heating jacket which is semicircular, and the second heating jacket and the movable door are correspondingly arranged.
Through adopting above-mentioned technical scheme, the second adds the jacket and heats the filtration jar to solid matter in the filtration jar is arranged in the stoving, thereby improves drying efficiency.
The utility model discloses further set up to: the vacuum pumping device comprises a vacuum pipe communicated with the suction filtration tank, and a valve and a vacuum pump are sequentially arranged in the vacuum pipe.
Through adopting above-mentioned technical scheme, utilize the vacuum pump to take out the suction filtration jar into vacuum state for on the one hand, the suction filtration jar is in vacuum state, and on the other hand has improved the drying efficiency of solid material.
The utility model discloses further set up to: the vacuum tube is internally provided with a condenser, the condenser is positioned between the vacuum pump and the suction filtration tank, and the bottom of the condenser is connected with a collection tank.
Through adopting above-mentioned technical scheme, the condenser is condensed the gas that the suction filtration jar was taken out for vapour in other forms liquid, so that the collection tank is collected.
To sum up, the utility model discloses a beneficial technological effect does:
the utility model has scientific and reasonable design and simple structure, and compared with the prior art, the reaction kettle, the filter tank, the suction filtration tank, the liquid storage tank and the reaction kettle are integrally connected, thereby having convenient operation and high efficiency of processing reaction solution; in the whole process, the solution and the solid are in a closed space to finish the collecting and drying processes, and do not contact with air, so that the stability of the solution is greatly improved, and the volatilization of partial components in the solution and the reaction with the air are avoided; in the suction filtration tank, the post-vacuum filtration stage and the drying of the solid materials are carried out simultaneously, which is equivalent to drying under the action of vacuum suction, so that the drying speed of the solid materials is greatly increased, and the energy consumption is reduced; the intermittent operation in the traditional vacuum filtration process is avoided, after the filtrate is full, the vacuumizing device needs to be stopped for vacuumizing, the filtrate is poured out and then is continuously vacuumized, and the device can be used for transferring the filtrate to a liquid storage tank or a reaction kettle in the vacuumizing process to keep the continuity of the whole process.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a cross-sectional view of the filter tank of the present invention.
In the figure, 1, a reaction kettle; 2. a filter tank; 3. a suction filtration tank; 4. a liquid storage tank; 5. a valve; 6. a first discharge pipe; 7. a second discharge pipe; 8. a circulation pipe; 81. a circulation pump; 9. a connecting pipe; 10. a pipeline; 101. a delivery pump; 11. a stirring device; 111. a servo motor; 112. a stirring shaft; 113. stirring blades; 12. a manhole; 13. a thermometer; 14. a nitrogen port; 15. a first heating jacket; 16. a filter plate; 17. a movable door; 18. a second heating jacket; 19. a vacuum tube; 20. a vacuum pump; 21. a condenser; 22. a collection tank; 23. a vacuum gauge; 24. a pressure relief valve; 25. a third discharge pipe.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, for the utility model discloses a vacuum filtration integrated device, including reation kettle 1, filter jar 2, suction filtration jar 3 and liquid storage pot 4, reation kettle 1, filter jar 2, suction filtration jar 3, liquid storage pot 4 and reation kettle 1 communicate in proper order.
The outer wall of reaction kettle 1 is provided with first heating jacket 15, and first heating jacket 15 is laminated with reaction kettle 1's outer wall, and first heating jacket 15 extends to the bottom from reaction kettle 1's well upper portion to in to reaction kettle 1 heats, thereby improve the reaction efficiency in reaction kettle 1. The reaction kettle 1 is provided with a stirring device 11, the stirring device 11 comprises a servo motor 111, a stirring shaft 112 and a stirring blade 113, the servo motor 111 is installed above the reaction kettle 1, the servo motor 111 is fixed with the stirring shaft 112, the stirring shaft 112 can rotatably extend into the reaction kettle 1, the stirring blade 113 is installed at one end of the stirring shaft 112 far away from the servo motor 111, and the stirring blade 113 is generally located below the liquid level of the solution in the reaction kettle 1. The top of the reaction kettle 1 is provided with a manhole 12 so as to be convenient for entering the reaction kettle 1 through the manhole 12 to overhaul the inner wall of the reaction kettle 1 and the stirring device 11. The top of the reaction kettle 1 is provided with a thermometer 13 so as to detect the temperature in the reaction kettle 1; the top of the reaction vessel 1 is provided with a nitrogen port 14 to facilitate the charging of nitrogen into the reaction vessel 1 or the discharging of nitrogen from the reaction vessel 1. The bottom of reation kettle 1 is connected with first discharging pipe 6, and the one end that reation kettle 1 was kept away from to first discharging pipe 6 is connected with the top of crossing filter tank 2, and first discharging pipe 6 is equipped with valve 5, opens valve 5 to in the solution in reation kettle 1 discharges filter tank 2.
A filter plate 16 is arranged in the filter tank 2, and the filter plate 16 is horizontally arranged in the filter tank 2 so as to filter the solution from the reaction kettle 1 and separate the liquid from the solid. The filter tank 2 is provided with an opening, the filter tank 2 is provided with a movable door 17 for covering the opening, the movable door 17 is positioned above the filter plate 16, and the movable door 17 is opened so as to take away the solid matters on the filter plate 16. A second heating jacket 18 is arranged on the outer wall of the filtering tank 2, the second heating jacket 18 is attached to the outer wall of the filtering tank 2, the second heating jacket 18 is arranged in a semicircular shape, the second heating jacket 18 is arranged corresponding to the movable door 17, and the second heating jacket 18 is positioned in the middle of the filtering tank 2; the top of the filter tank 2 is provided with a vacuum gauge 23 so as to measure the vacuum degree in the filter tank 2; a pressure release valve 24 is arranged at the top of the filter tank 2, and the pressure release valve 24 is opened, so that the pressure of the filter tank 2 is recovered. The bottom of filtering jar 2 is connected with second discharging pipe 7, and the one end that filters jar 2 is kept away from to second discharging pipe 7 is connected with suction filtration jar 3, and second discharging pipe 7 is equipped with valve 5, opens valve 5 to in the solution of filtering jar 2 gets into suction filtration jar 3 with second discharging pipe 7.
A vacuum gauge 23 is arranged at the top of the suction filtration tank 3 so as to measure the vacuum degree in the suction filtration tank 3; a pressure relief valve 24 is arranged at the top of the filtration tank 3, and the pressure relief valve 24 is opened to recover the pressure of the filtration tank 3. The top of the filtration tank 3 is provided with a vacuum pumping device, the vacuum pumping device comprises a vacuum pipe 19 communicated with the filtration tank 3, a valve 5, a condenser 21 and a vacuum pump 20 are sequentially arranged in the vacuum pipe 19, and the valve 5 is opened so as to conveniently pump the filtration tank 3 into vacuum by utilizing the vacuum pump 20. The condenser 21 condenses the extracted air into liquid; the bottom of the condenser 21 is connected with a collecting tank 22, a valve 5 is arranged between the collecting tank 22 and the condenser 21, and the valve 5 is opened so that the collecting tank 22 can collect liquid.
The bottom of the suction filtration tank 3 is connected with the top of the reaction kettle 1 through a circulating pipe 8, valves 5 are arranged at two ends of the circulating pipe 8, a circulating pump 81 is arranged in the circulating pipe 8, and the circulating pump 81 is positioned between two groups of valves 5 of the circulating pipe 8; two valves 5 are opened so as to pump the solution in the suction filtration tank 3 into the reaction kettle 1 by using the circulating pump 81. The circulating pipe 8 is communicated with the top of the liquid storage tank 4 through a connecting pipe 9, the connecting pipe 9 is positioned on the circulating pipe 8 between the two groups of valves 5, and the valves 5 are arranged in the connecting pipe 9; the valve 5 of the connecting pipe 9 is opened, and the circulating pipe 8 is opened to be close to the valve 5 of the suction filtration tank 3, so that the solution in the suction filtration tank 3 is pumped into the liquid storage tank 4 by using the circulating pump 81. The bottom of the liquid storage tank 4 is communicated with a circulating pipe 8 through a pipeline 10, the pipeline 10 is positioned on the circulating pipe 8 between the two groups of valves 5, the two ends of the pipeline 10 are provided with the valves 5, and the pipeline 10 between the two groups of valves 5 is provided with a material conveying pump 101. Two valves 5 of the pipeline 10 are opened, and a circulating pipe 8 is opened to close the valve 5 of the reaction kettle 1, so that the solution in the liquid storage tank 4 is pumped into the reaction kettle 1 by using a material conveying pump 101. The bottom of the liquid storage tank 4 is provided with a third discharge pipe 25, the third discharge pipe 25 is provided with a valve 5, and the valve 5 is opened so that the third discharge pipe 25 can discharge the solution in the liquid storage tank 4.
The implementation principle of the embodiment is as follows: placing the materials in a reaction kettle 1, forming a mixed solution after the materials react in the reaction kettle 1, opening a valve 5 of a first discharge pipe 6, and enabling the solution to enter a filter tank 2 through the first discharge pipe 6 for filtering, so that liquid and solid materials are classified; opening a valve 5 of a second discharge pipe 7 to enable the filtered solution to enter the suction filtration tank 3, and then, utilizing a vacuumizing device to vacuumize the suction filtration tank 3; after the solution in the filtration tank 3 is full, the valve 5 of the circulation pipe 8 close to the filtration tank 3 is opened, the valve 5 of the circulation pipe 8 close to the reaction kettle 1 is closed, the valve 5 of the connection pipe 9 is opened, and the circulation pump 81 is started, so that the solution in the filtration tank 3 is pumped into the liquid storage tank 4. If the solution in the suction filtration tank 3 is a reaction solution, two groups of valves 5 of the circulating pipe 8 can be opened, and the circulating pump 81 is started, so that the solution in the suction filtration tank 3 is pumped into the reaction kettle 1 for reuse; if the solution in the liquid storage tank 4 is reaction solution, two valves 5 in the pipeline 10 can be opened, the valve 5 in the circulating pipe 8 close to the reaction kettle 1 is opened, and the material conveying pump 101 is started, so that the solution in the liquid storage tank 4 is pumped into the reaction kettle 1 for reuse; after the solid material is dried, the heating and the vacuum pumping are stopped, the pressure release valve 24 is opened, and the movable door 17 is opened so as to take out the solid material. The utility model has scientific and reasonable design and simple structure, compared with the prior art, the reaction kettle 1, the filter tank 2, the suction filtration tank 3, the liquid storage tank 4 and the reaction kettle 1 are integrally connected, the operation is convenient, and the efficiency of treating reaction solution is high; in the whole process, the solution and the solid are in a closed space to finish the collecting and drying processes, and do not contact with air, so that the stability of the solution is greatly improved, and the volatilization of partial components in the solution and the reaction with the air are avoided; in the suction filtration tank 3, the post-vacuum filtration stage and the drying of the solid materials are carried out simultaneously, which is equivalent to drying under the action of vacuum suction, so that the drying speed of the solid materials is greatly increased, and the energy consumption is reduced; the intermittent operation in the traditional vacuum filtration process is avoided, after the filtrate is full, the vacuumizing device needs to be stopped for vacuumizing, the filtrate is poured out and then is continuously vacuumized, and the device can be used for transferring the filtrate to the liquid storage tank 4 or the reaction kettle 1 in the vacuumizing process to keep the continuity of the whole process.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (9)
1. The utility model provides a vacuum suction filtration integrated device which characterized in that: the device comprises a reaction kettle (1), a filtering tank (2), a suction filtering tank (3) and a liquid storage tank (4), wherein the bottom of the reaction kettle (1) is communicated with the top of the filtering tank (2) through a first discharge pipe (6), and the first discharge pipe (6) is provided with a valve (5); the bottom of the filtering tank (2) is communicated with the suction filtering tank (3) through a second discharging pipe (7), the second discharging pipe (7) is provided with a valve (5), and the top of the suction filtering tank (3) is provided with a vacuumizing device; the bottom of the suction filtration tank (3) is connected with the top of the reaction kettle (1) through a circulating pipe (8), valves (5) are arranged at two ends of the circulating pipe (8), a circulating pump (81) is arranged in the circulating pipe (8), and the circulating pump (81) is positioned between two groups of valves (5) of the circulating pipe (8); the circulating pipe (8) is communicated with the top of the liquid storage tank (4) through a connecting pipe (9), the connecting pipe (9) is located on the circulating pipe (8) between the two sets of valves (5), the valves (5) are arranged in the connecting pipe (9), the bottom of the liquid storage tank (4) is communicated with the circulating pipe (8) through a pipeline (10), the pipeline (10) is located on the circulating pipe (8) between the two sets of valves (5), the valves (5) are arranged at the two ends of the pipeline (10), and the pipeline (10) between the valves (5) is provided with a material conveying pump (101).
2. The vacuum filtration integrated device according to claim 1, wherein: reation kettle (1) is equipped with agitating unit (11), agitating unit (11) include servo motor (111), (mixing) shaft (112) and stirring leaf (113), servo motor (111) are fixed with (mixing) shaft (112), in (mixing) shaft (112) rotatable stretching into reation kettle (1), the one end of servo motor (111) is kept away from in (mixing) shaft (112) is installed in stirring leaf (113).
3. The vacuum filtration integrated device according to claim 2, wherein: a manhole (12) is arranged at the top of the reaction kettle (1).
4. The vacuum filtration integrated device according to claim 3, wherein: the outer wall of the reaction kettle (1) is provided with a first heating jacket (15), and the first heating jacket (15) extends from the middle upper part to the bottom of the reaction kettle (1).
5. The vacuum filtration integrated device according to claim 1, wherein: the filter tank (2) is internally provided with a filter plate (16), and the filter plate (16) is horizontally arranged in the filter tank (2).
6. The vacuum filtration integrated device according to claim 5, wherein: the filter tank (2) is provided with an opening for taking materials, the filter tank (2) is provided with a movable door (17) for covering the opening, and the movable door (17) is positioned above the filter plate (16).
7. The vacuum filtration integrated device according to claim 6, wherein: the outer wall of the filtering tank (2) is provided with a second heating jacket (18), the second heating jacket (18) is arranged in a semicircular shape, and the second heating jacket (18) and the movable door (17) are correspondingly arranged.
8. The vacuum filtration integrated device according to claim 1, wherein: the vacuum pumping device comprises a vacuum pipe (19) communicated with the filtration tank (3), and a valve (5) and a vacuum pump (20) are sequentially arranged in the vacuum pipe (19).
9. The vacuum filtration integrated device according to claim 8, wherein: be equipped with condenser (21) in vacuum tube (19), condenser (21) are located between vacuum pump (20) and valve (5), the bottom of condenser (21) is connected with holding vessel (22), be equipped with valve (5) between holding vessel (22) and condenser (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922420687.5U CN211462268U (en) | 2019-12-26 | 2019-12-26 | Vacuum suction filtration integrated device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922420687.5U CN211462268U (en) | 2019-12-26 | 2019-12-26 | Vacuum suction filtration integrated device |
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| CN211462268U true CN211462268U (en) | 2020-09-11 |
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| CN201922420687.5U Active CN211462268U (en) | 2019-12-26 | 2019-12-26 | Vacuum suction filtration integrated device |
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| CN112758966A (en) * | 2020-12-30 | 2021-05-07 | 莱州市中大贵合化工有限公司 | Production process of magnesium sulfate heptahydrate and magnesium sulfate heptahydrate production equipment |
| CN113144710A (en) * | 2021-04-26 | 2021-07-23 | 浙江南郊化学有限公司 | A retrieve filter equipment for lufenuron reduction catalyst |
| CN113385125A (en) * | 2021-03-11 | 2021-09-14 | 上海应用技术大学 | Preparation device and process of graphene oxide composite superfine silver powder |
| CN113559811A (en) * | 2021-08-20 | 2021-10-29 | 核工业理化工程研究院 | Experimental device for anhydrous zinc acetate preparation and aftertreatment |
| CN113842857A (en) * | 2021-09-14 | 2021-12-28 | 煤炭科学技术研究院有限公司 | System and method for preparing acylation liquid |
| CN114279807A (en) * | 2021-12-27 | 2022-04-05 | 苏州思萃同位素技术研究所有限公司 | Method and device for solidifying radioactive carbon isotope |
| CN114739852A (en) * | 2022-06-13 | 2022-07-12 | 长沙海纳光电科技有限公司 | Automatic cement insoluble slag content measuring instrument |
| CN115608309A (en) * | 2022-10-17 | 2023-01-17 | 连云港贵科药业有限公司 | Production method of high-purity pemetrexed disodium |
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2019
- 2019-12-26 CN CN201922420687.5U patent/CN211462268U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112758966A (en) * | 2020-12-30 | 2021-05-07 | 莱州市中大贵合化工有限公司 | Production process of magnesium sulfate heptahydrate and magnesium sulfate heptahydrate production equipment |
| CN113385125A (en) * | 2021-03-11 | 2021-09-14 | 上海应用技术大学 | Preparation device and process of graphene oxide composite superfine silver powder |
| CN113144710A (en) * | 2021-04-26 | 2021-07-23 | 浙江南郊化学有限公司 | A retrieve filter equipment for lufenuron reduction catalyst |
| CN113559811A (en) * | 2021-08-20 | 2021-10-29 | 核工业理化工程研究院 | Experimental device for anhydrous zinc acetate preparation and aftertreatment |
| CN113842857A (en) * | 2021-09-14 | 2021-12-28 | 煤炭科学技术研究院有限公司 | System and method for preparing acylation liquid |
| CN113842857B (en) * | 2021-09-14 | 2023-08-29 | 煤炭科学技术研究院有限公司 | System and method for preparing acylation liquid |
| CN114279807A (en) * | 2021-12-27 | 2022-04-05 | 苏州思萃同位素技术研究所有限公司 | Method and device for solidifying radioactive carbon isotope |
| CN114739852A (en) * | 2022-06-13 | 2022-07-12 | 长沙海纳光电科技有限公司 | Automatic cement insoluble slag content measuring instrument |
| CN115608309A (en) * | 2022-10-17 | 2023-01-17 | 连云港贵科药业有限公司 | Production method of high-purity pemetrexed disodium |
| CN115608309B (en) * | 2022-10-17 | 2023-10-20 | 连云港贵科药业有限公司 | Production method of high-purity pemetrexed disodium |
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Denomination of utility model: A vacuum suction filtration integrated device Effective date of registration: 20220114 Granted publication date: 20200911 Pledgee: Guangdong Xinfeng Commercial Bank Co.,Ltd. Pledgor: GUANGDONG YELE NEW MATERIAL MANUFACTURING CO.,LTD. Registration number: Y2022980000564 |