CN222219178U - An alcohol dehydration device for producing cemented carbide mixture - Google Patents
An alcohol dehydration device for producing cemented carbide mixture Download PDFInfo
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- CN222219178U CN222219178U CN202323489015.2U CN202323489015U CN222219178U CN 222219178 U CN222219178 U CN 222219178U CN 202323489015 U CN202323489015 U CN 202323489015U CN 222219178 U CN222219178 U CN 222219178U
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Abstract
一种硬质合金混合料生产用酒精脱水装置:依次包括酒精回收罐、塔氏蒸发器、渗透汽化装置；所述酒精回收罐的出料口连通塔氏蒸发器进料口，塔氏蒸发器的底部设有残渣排放口，所述塔氏蒸发器顶部的出料口连通至渗透汽化装置的进料口；所述渗透汽化装置中设有数个按酒精流动方向依次设置的渗透汽化膜，所述渗透汽化膜为有限透水膜；所述渗透汽化装置设有酒精出口和渗透液出口，所述酒精出口对应最末端的所述渗透汽化膜的渗出酒精的一侧设置，并连通酒精冷凝装置；所述渗透液出口对应各所述渗透汽化膜的渗出渗透液的一侧设置，并连通渗透液冷凝装置；酒精冷凝装置的出液口连通酒精成品罐的进液口，渗透液冷凝装置的出液口连通废水收集罐的进液口。
An alcohol dehydration device for producing cemented carbide mixtures comprises an alcohol recovery tank, a Tatiana evaporator and a pervaporation device in sequence; the discharge port of the alcohol recovery tank is connected to the feed port of the Tatiana evaporator, the bottom of the Tatiana evaporator is provided with a residue discharge port, and the discharge port at the top of the Tatiana evaporator is connected to the feed port of the pervaporation device; the pervaporation device is provided with a plurality of pervaporation membranes arranged in sequence according to the alcohol flow direction, and the pervaporation membranes are limited water permeable membranes; the pervaporation device is provided with an alcohol outlet and a permeate outlet, the alcohol outlet is arranged corresponding to the side of the pervaporation membrane at the end where the alcohol is seeped out, and is connected to an alcohol condensation device; the permeate outlet is arranged corresponding to the side of each pervaporation membrane where the permeate is seeped out, and is connected to the permeate condensation device; the liquid outlet of the alcohol condensation device is connected to the liquid inlet of the alcohol finished product tank, and the liquid outlet of the permeate condensation device is connected to the liquid inlet of a wastewater collection tank.
Description
Technical Field
The utility model relates to the field of hard alloy production, in particular to an alcohol dehydration device for hard alloy mixture production.
Background
The hard alloy is an alloy material prepared from hard compounds of refractory metals and binding metals through a powder metallurgy process, and has a series of excellent properties of high hardness, wear resistance, good strength and toughness, heat resistance, corrosion resistance and the like, particularly the high hardness and wear resistance of the hard alloy, which are basically unchanged even at the temperature of 500 ℃, and the high hardness at 1000 ℃. The hard alloy is widely used as a cutter material, such as a turning tool, a milling cutter, a planing tool, a drill bit, a boring tool and the like, is used for cutting cast iron, nonferrous metals, plastics, chemical fibers, graphite, glass, stone and common steel, and can also be used for cutting refractory steel, stainless steel, high manganese steel, tool steel and other difficult-to-process materials.
In the production process of hard alloy, alcohol recovery operation is often needed, so that a large amount of hard alloy fragments contained in recovered alcohol can be removed through a filter screen only by simple filtration, on one hand, the filter effect of the filter screen is effective, more sufficient filtration cannot be carried out on fine impurities (such as hard alloy fragments and forming agents), on the other hand, in continuous production, ball milling alcohol needs to reach absolute alcohol standard, water content in recycled alcohol exceeds a certain proportion, the recycled alcohol cannot be used continuously, and the filter screen cannot remove water in the alcohol, so that the problem is solved by the corresponding alcohol recovery device.
In view of the above, it is the subject of the present utility model to design an alcohol dehydration device for producing cemented carbide mixture to overcome the above-mentioned shortcomings.
Disclosure of Invention
The utility model provides an alcohol dehydration device for producing hard alloy mixture, which is used for carrying out dehydration treatment on circulating alcohol in the process. The ball milling alcohol can reach the standard of absolute alcohol, and the problems of unstable bulk density and fluidity of the mixture and oxidation of the mixture caused by fluctuation of alcohol water content in the production process of the mixture are solved.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
alcohol dewatering device is used in carbide mixture production:
sequentially comprises an alcohol recovery tank, a Tara evaporator and a pervaporation device;
The discharge port of the alcohol recovery tank is communicated with the feed port of the Tachysene evaporator, the bottom of the Tachysene evaporator is provided with a residue discharge port, and the discharge port at the top of the Tachysene evaporator is communicated with the feed port of the pervaporation device;
The alcohol-based water-based wastewater collection tank comprises a wastewater collection tank, wherein a plurality of pervaporation membranes are sequentially arranged in the pervaporation device according to the flowing direction of alcohol, the pervaporation membranes are limited water-based membranes, the pervaporation device is provided with an alcohol outlet and a permeate outlet, the alcohol outlet is arranged corresponding to one side of the extreme end of the pervaporation membrane, from which alcohol is exuded, and is communicated with the alcohol condensation device, the permeate outlet is arranged corresponding to one side of each pervaporation membrane, from which permeate liquid is exuded, and is communicated with the permeate condensation device, a liquid outlet of the alcohol condensation device is communicated with a liquid inlet of the alcohol-based wastewater collection tank, and a liquid outlet of the permeate condensation device is communicated with a liquid inlet of the wastewater collection tank.
According to a further technical scheme, the limited water permeable membrane is one or a combination of more of a NaA type molecular sieve membrane, a CHA type molecular sieve membrane, a T type molecular sieve membrane, a ZSM-5 type molecular sieve membrane and a MOR type molecular sieve membrane.
According to a further technical scheme, the aperture of the limited water permeable membrane is 4.1-5.1A.
According to a further technical scheme, a plurality of pervaporation membranes in the pervaporation device are connected in series, parallel or series-parallel.
According to a further technical scheme, a vacuum pump set is arranged between the permeate condensing device and the wastewater collecting tank.
According to a further technical scheme, the alcohol finished product tank can be communicated with a process alcohol tank.
According to a further technical scheme, a first valve is connected in series in a pipeline from the alcohol product tank to the process alcohol tank, a return pipeline from the alcohol product tank to a feed inlet of the pervaporation device is additionally arranged, and a second valve is connected in series on the return pipeline.
Further technical scheme, alcohol recovery jar, tower's evaporimeter, alcohol condensing equipment, permeate condensing equipment, alcohol finished product jar, waste water collection jar, vacuum pump package, technology alcohol jar all can adopt prior art, are well known to the person skilled in the art, so this case is not repeated.
The specific dehydration flow of the alcohol dehydration device is as follows:
step one, injecting the recovered alcohol after spray drying into a recovered alcohol tank;
Extracting the alcohol in the recovery tank to a tower type evaporator for evaporation, removing impurities such as forming agents in the alcohol, avoiding blocking the pervaporation membrane, and periodically discharging the forming agents such as residual paraffin at the bottom of the evaporator;
Step three, alcohol vapor is discharged from the top layer of the tower evaporator, dehydration treatment is carried out through a pervaporation membrane device, a limited water permeable membrane is adopted by the pervaporation membrane, separated water is obtained through permeation measurement, alcohol is obtained on the interception side, and the water content is finally lower than 0.5% through multistage treatment;
condensing alcohol at the interception side and injecting the condensed alcohol into a finished product tank;
step five, injecting alcohol into the process tank when the alcohol level of the finished product tank reaches a certain value for feeding the mixture;
And step six, condensing the vapor on the permeation side, and discharging the condensed vapor into a wastewater collection tank.
The design principle and effect of the utility model are as follows:
the technology of the utility model ensures that the alcohol ball milling each time reaches the absolute alcohol standard by carrying out dehydration treatment on the circulating alcohol in the process, and solves the problems of unstable bulk density and fluidity of the mixture and oxidation of the mixture caused by fluctuation of the alcohol water content in the production process of the mixture.
The waste alcohol to be treated by the tower-type evaporator is evaporated, impurities such as forming agents in the alcohol are removed, the pervaporation membrane is prevented from being blocked, and the forming agents such as residual paraffin are discharged at the bottom of the evaporator at regular intervals.
The method adopts a pervaporation membrane separation technology to dehydrate the organic solvent, has obvious advantages of energy conservation and emission reduction, and is particularly suitable for separating azeotropic and near-boiling mixtures. The pore diameter of the limited permeable membrane-molecular sieve membrane in the technical scheme is set to be 0.41-0.51 nm, which is larger than the diameter of water molecules and smaller than the diameter of most organic molecules, and the limited permeable membrane-molecular sieve membrane has strong hydrophilicity and is particularly suitable for the pervaporation dehydration of organic solvents.
The alcohol dehydration device has large alcohol treatment amount, the treated alcohol can reach the absolute alcohol standard, the oxidation of water in the alcohol to powder is reduced, the quality stability of the mixture is improved, the alcohol can be recycled, the waste alcohol is reduced, the dehydration cost is reduced by adopting a pervaporation membrane treatment process, and the purchase cost and the dangerous waste treatment cost are greatly saved.
Drawings
FIG. 1 is a schematic diagram of an alcohol dehydration apparatus according to an embodiment of the present utility model;
In the drawings, the alcohol recovery tank 1, the Tar evaporator 2, the pervaporation device 3, the pervaporation membrane 31, the alcohol condensing device 4, the permeate condensing device 5, the alcohol finished product tank 6, the wastewater collection tank 7, the vacuum pump set 8, the process alcohol tank 9, the first valve 11 and the second valve 12.
Description of the embodiments
The utility model is further described below with reference to the accompanying drawings and examples:
examples the present invention will be described in detail in the drawings and detailed description below, and any person skilled in the art, after having the knowledge of the examples of the present invention, may make variations and modifications in the techniques taught by the present invention without departing from the spirit and scope of the present invention.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. Singular forms such as "a," "an," "the," and "the" are intended to include the plural forms as well, as used herein.
As used herein, "connected" or "positioned" may refer to two or more components or devices in physical contact with each other, or indirectly, or in operation or action with each other.
As used herein, the terms "comprising," "including," "having," and the like are intended to be open-ended terms, meaning including, but not limited to.
The term (terms) as used herein generally has the ordinary meaning of each term as used in this field, in this disclosure, and in the special context, unless otherwise noted. Certain terms used to describe the present disclosure are discussed below, or elsewhere in this specification, to provide additional guidance to those skilled in the art in connection with the description herein.
Alcohol dewatering device is used in carbide mixture production
As shown in fig. 1, an alcohol dehydration device for producing cemented carbide mixture:
comprises an alcohol recovery tank 1, a Tar evaporator 2 and a pervaporation device 3 in sequence;
the discharge port of the alcohol recovery tank 1 is communicated with the feed port of the Tachysene evaporator 2, the bottom of the Tachysene evaporator 2 is provided with a residue discharge port, and the discharge port at the top of the Tachysene evaporator 2 is communicated with the feed port of the pervaporation device 3;
The alcohol-based water treatment device is characterized in that a plurality of pervaporation membranes 31 are arranged in the pervaporation device 3 in sequence according to the flowing direction of alcohol, the pervaporation membranes 31 are limited permeable membranes, the pervaporation device 3 is provided with an alcohol outlet and a permeate outlet, the alcohol outlet is arranged corresponding to one side of the extreme end of the pervaporation membranes 31, from which alcohol is exuded, and is communicated with the alcohol condensation device 4, the permeate outlet is arranged corresponding to one side of each pervaporation membrane, from which permeate is exuded, and is communicated with the permeate condensation device 5, a liquid outlet of the alcohol condensation device 4 is communicated with a liquid inlet of an alcohol finished product tank 6, and a liquid outlet of the permeate condensation device 5 is communicated with a liquid inlet of the waste water collection tank 7.
In this embodiment, the limited permeable membrane is a NaA-type molecular sieve membrane. But can select CHA type molecular sieve membrane, T type molecular sieve membrane, ZSM-5 type molecular sieve membrane and MOR type molecular sieve membrane.
The NaA-type molecular sieve membrane used in this example has a pore size of 4.2A.
The several pervaporation membranes 31 in the pervaporation device 3 are connected in series, parallel or series-parallel.
A vacuum pump set 8 is arranged between the permeate condensing device 5 and the wastewater collecting tank 7.
The alcohol product tank 6 is communicated with a process alcohol tank 9.
The pipeline from the alcohol product tank 6 to the process alcohol tank 9 is connected with a first valve 11 in series, the reflux pipeline from the alcohol product tank 6 to the feed inlet of the pervaporation device 3 is added, and the reflux pipeline is connected with a second valve 12 in series.
The several pervaporation membranes 31 in the pervaporation device 3 are connected in series, parallel or series-parallel. In this embodiment, the pervaporation membranes 31 are connected in series on the same pipeline, so that the dehydration efficiency of alcohol can be improved theoretically. The pervaporation membrane 31 is connected in parallel, and the more the parallel lines, the theoretically possible increase in the amount of alcohol treated per unit time. In practice, the pervaporation membranes 31 may be connected side by side (parallel) or partially side by side (series-parallel) according to different conditions.
The alcohol dehydration device can also be used for dehydration of other solvents, such as acetone and n-hexane. Other types of molecular sieve membranes may be replaced and corresponding pore sizes replaced for the purposes of the present utility model.
The specific dehydration flow of the alcohol dehydration device in this embodiment is as follows:
step one, injecting the recovered alcohol after spray drying into a recovered alcohol tank 1;
step two, extracting the alcohol 1 in the recovery tank to a tower type evaporator 2 for evaporation, removing impurities such as forming agents in the alcohol, avoiding blocking the pervaporation membrane, and periodically discharging the forming agents such as residual paraffin at the bottom of the tower type evaporator 2;
Step three, discharging alcohol vapor from the top layer of the tower evaporator 2, dehydrating by a pervaporation device 3, obtaining separated water by a pervaporation membrane through a limited permeable membrane, obtaining alcohol at the interception side, and finally enabling the water content to be lower than 0.5% through multistage treatment;
Condensing alcohol at the interception side and injecting the condensed alcohol into a finished product tank 6;
Step five, injecting alcohol into the process tank 9 when the alcohol level of the finished product tank 6 reaches a certain value for feeding the mixture;
And step six, condensing the vapor on the permeation side, and discharging the condensed vapor to a wastewater collection tank 7.
In addition, a vacuum pump set 8 is arranged between the permeate liquid cooling device 5 and the wastewater collection tank 7, and water in the alcohol is separated through the membrane component by vacuumizing.
The alcohol finished product tank 6 is connected with a process alcohol tank 9, and alcohol is transferred into the process alcohol tank for subsequent ball milling after the alcohol detection of the finished product alcohol tank is qualified.
For the detection link, a first valve 11 can be connected in series in the pipeline from the alcohol product tank 6 to the process alcohol tank 9, a return pipeline from the alcohol product tank 6 to the feed inlet of the pervaporation device 3 can be added, and a second valve 12 can be connected in series on the return pipeline.
If the alcohol in the alcohol finished product tank 6 is detected to be qualified (the water content is still higher), the second valve 2 is opened, the first valve 1 is closed, the alcohol flows back to the pervaporation device 3 for repeated dehydration until the water content of the alcohol entering the alcohol finished product tank 6 reaches the set requirement.
The detection can be performed manually, or a detection device for detecting the water content of the alcohol can be arranged on the alcohol finished product tank 6, the detection device can be in the prior art, the water content of the alcohol in the alcohol finished product tank 6 is detected in real time through the detection device and fed back to the control system, the control system judges whether the water content detection of the alcohol is qualified or not, and further judges whether an execution instruction is sent to the first valve 11 or the second valve 12, so that full-automatic operation can be realized, the alcohol dehydration effect is improved, and meanwhile, the dehydration efficiency is also improved.
The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.
Claims (7)
1. An alcohol dewatering device for hard alloy mixture production, which is characterized in that:
Comprises an alcohol recovery tank (1), a Tara evaporator (2) and a pervaporation device (3) in sequence;
The discharge port of the alcohol recovery tank (1) is communicated with the feed port of the Tashi evaporator (2), the bottom of the Tashi evaporator (2) is provided with a residue discharge port, and the discharge port at the top of the Tashi evaporator (2) is communicated with the feed port of the pervaporation device (3);
The alcohol-based water treatment device is characterized in that a plurality of pervaporation membranes (31) which are sequentially arranged according to the flowing direction of alcohol are arranged in the pervaporation device (3), the pervaporation membranes (31) are limited permeable membranes, the pervaporation device (3) is provided with an alcohol outlet and a permeate outlet, the alcohol outlet is arranged corresponding to one side of the extreme pervaporation membranes (31) from which alcohol is exuded and is communicated with the alcohol condensing device (4), the permeate outlet is arranged corresponding to one side of each pervaporation membrane from which permeate liquid is exuded and is communicated with the permeate condensing device (5), a liquid outlet of the alcohol condensing device (4) is communicated with a liquid inlet of an alcohol finished product tank (6), and a liquid outlet of the permeate condensing device (5) is communicated with a liquid inlet of the wastewater collecting tank (7).
2. The alcohol dehydration device for producing hard alloy mixture according to claim 1, wherein the limited water permeable membrane is one or a combination of a plurality of NaA type molecular sieve membranes, CHA type molecular sieve membranes, T type molecular sieve membranes, ZSM-5 type molecular sieve membranes and MOR type molecular sieve membranes.
3. The alcohol dehydration device for producing cemented carbide mixture according to claim 1, wherein the pore diameter of the limited water permeable membrane is 4.1-5.1A.
4. The alcohol dehydration device for producing cemented carbide mixture according to claim 1, wherein a plurality of pervaporation membranes (31) in the pervaporation device (3) are connected in series, parallel or series-parallel.
5. The alcohol dehydration device for producing cemented carbide mixture according to claim 1, wherein a vacuum pump set (8) is arranged between the permeate condensing device (5) and the wastewater collecting tank (7).
6. The alcohol dehydration device for producing cemented carbide mixture according to claim 1, wherein the alcohol outlet of the alcohol product tank (6) is communicated with the alcohol inlet of a process alcohol tank (9).
7. The alcohol dehydration device for producing hard alloy mixture according to claim 6, wherein a first valve (11) is connected in series in a pipeline from the alcohol product tank (6) to the process alcohol tank (9), a reflux pipeline from the alcohol product tank (6) to a feed inlet of the pervaporation device (3) is added, and a second valve (12) is connected in series on the reflux pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323489015.2U CN222219178U (en) | 2023-12-21 | 2023-12-21 | An alcohol dehydration device for producing cemented carbide mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323489015.2U CN222219178U (en) | 2023-12-21 | 2023-12-21 | An alcohol dehydration device for producing cemented carbide mixture |
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| Publication Number | Publication Date |
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| CN222219178U true CN222219178U (en) | 2024-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202323489015.2U Active CN222219178U (en) | 2023-12-21 | 2023-12-21 | An alcohol dehydration device for producing cemented carbide mixture |
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| CN (1) | CN222219178U (en) |
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- 2023-12-21 CN CN202323489015.2U patent/CN222219178U/en active Active
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