CN214680063U - Acetic ether refining tower capable of automatically conveying materials - Google Patents
Acetic ether refining tower capable of automatically conveying materials Download PDFInfo
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- CN214680063U CN214680063U CN202120971123.5U CN202120971123U CN214680063U CN 214680063 U CN214680063 U CN 214680063U CN 202120971123 U CN202120971123 U CN 202120971123U CN 214680063 U CN214680063 U CN 214680063U
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Abstract
The utility model discloses an ethyl acetate refining tower with automatic material conveying function, which comprises a tower body, a preheating mechanism, a thermal circulation mechanism and a floating ball mechanism, wherein the inner wall of the tower body is symmetrically provided with a supporting seat, the upper surface of the supporting seat at the lower part is fixedly connected with an evaporation chamber, the inside of the evaporation chamber is provided with a steam pipe through a ribbed plate, the left air inlet of the steam pipe extends to the outside through the inner hole of the left side plate of the evaporation chamber, the upper end of the top plate of the evaporation chamber is provided with a flow guide cover, the upper end of the flow guide cover is provided with a gas pipe, the upper surface of the supporting seat at the upper part is provided with a condensation chamber, the inside of the condensation chamber is provided with a condensation pipe, the preheating mechanism is arranged at the upper surface of the bottom of the tower body, the thermal circulation mechanism is fixedly connected with the upper surface of the supporting seat at the lower part, the floating ball mechanism is positioned inside the evaporation chamber and fixedly connected with the bottom plate thereof, the ethyl acetate refining tower with automatic material conveying function can effectively realize refining, preheat raw materials and improve the use efficiency of heating steam, and (6) automatically conveying.
Description
Technical Field
The utility model relates to an ethyl acetate manufacture equipment technical field specifically is an automatic defeated ethyl acetate refining tower of material.
Background
The ethyl acetate is a colorless and transparent liquid with pungent smell, is a widely used fine chemical product, has excellent solubility and quick drying property, is widely used, is a very important organic chemical raw material and an excellent industrial solvent, is widely used in the production processes of acetate fibers, ethyl fibers, chlorinated rubber, vinyl resin, acetate fiber resin, synthetic rubber, coating, paint and the like, is usually purified and refined by a refining tower in order to improve the purity and quality of the ethyl acetate, most of the existing refining towers exchange heat through heating media, and the raw material is cooled and purified after being heated and evaporated, but the structure of the existing refining towers is usually simple, only a basic evaporation cooling structure is provided, a large amount of heat is wasted in the refining process, the efficiency is low, the cost is high, and the raw material conveying cannot be automatically controlled, the operation is inconvenient, and for this reason, an ethyl acetate refining tower capable of automatically conveying materials is provided.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, provide an automatic defeated ethyl acetate refining tower of material, its is rational in infrastructure, and heat utilization is abundant, and production efficiency is high, can defeated the material automatically, and the cost is reduced can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: an ethyl acetate refining tower capable of automatically conveying materials comprises a tower body, a preheating mechanism, a thermal circulation mechanism and a floating ball mechanism;
a tower body: the inner wall of the evaporation chamber is symmetrically provided with supporting seats, the upper surface of the lower supporting seat is fixedly connected with an evaporation chamber, the inside of the evaporation chamber is provided with a steam pipe through a ribbed plate, an air inlet at the left side of the steam pipe extends to the outside through an inner hole of a left side plate of the evaporation chamber, the upper end of a top plate of the evaporation chamber is provided with a flow guide cover, the upper end of the flow guide cover is provided with a gas pipe, the outer arc surface of the gas pipe is fixedly connected with the inner wall of the upper supporting seat, the upper surface of the upper supporting seat is provided with a condensation chamber, and the inside of the condensation chamber is provided with a condensation pipe;
preheating a mechanism: the tower bottom upper surface is arranged on the tower body;
a thermal circulation mechanism: is fixedly connected with the upper surface of the lower supporting seat;
a floating ball mechanism: set up in the inside bottom surface of evaporating chamber, can effectively realize the refining of ethyl acetate through the evaporation of evaporating chamber and the condensation of condensing chamber, preheat the mechanism and can preheat the raw materials, the thermal cycle mechanism can improve heating steam availability factor, and the automatic transportation of raw materials can be controlled to the floater mechanism.
Furthermore, the device also comprises a control switch group which is arranged on the upper surface of the top plate of the evaporation chamber and used for controlling other related equipment to operate.
Further, preheat the mechanism and include preheating chamber, preheating tube, motorised valve and back flow, the preheating chamber sets up in the tower bottom upper surface of tower body, and the inside of preheating chamber is equipped with the preheating tube, and the feed inlet of preheating tube extends to the outside by the stack shell hole of preheating chamber, and the discharge gate of preheating tube extends to the inside to the evaporating chamber by the roof hole of preheating chamber, and the inlet pipe middle part of preheating tube is established ties and is had the motorised valve, the liquid outlet of back flow and the stack shell inner wall fixed connection of preheating chamber, the inlet of back flow and the right side board hole fixed connection of condensing chamber, the output of control switch group is connected to the input electricity of motorised valve, utilizes the coolant liquid after the intensification to preheat the raw materials, improves heating efficiency, make full use of heat.
Furthermore, the preheating device also comprises fins which are arranged on the outer arc surface of the preheating pipe in an array mode, so that the heat absorption efficiency of the heated cooling liquid is improved, and the preheating raw materials are convenient to preheat.
Further, the thermal cycle mechanism includes compressor, muffler and last trachea, the compressor sets up in the supporting seat upper surface of lower part, and the muffler intercommunication is passed through with the gas outlet of steam pipe to the air inlet of compressor, and the last trachea intercommunication is passed through with the intake pipe of steam pipe to the gas outlet of compressor, and the output of control switch group is connected to the input electricity of compressor, realizes recycling after carrying out the compression intensification to used heating steam, has improved heating steam's availability factor.
Furthermore, the floating ball mechanism comprises a guide rod, a floating ball, a sliding block and a piezoelectric sensor, the guide rod is arranged on a bottom plate of the evaporation chamber and extends to the outside from an inner hole of a top plate of the evaporation chamber, the sliding block is fixedly connected to the upper portion of the floating ball, the floating ball and the sliding block are both in sliding connection with the guide rod, the piezoelectric sensor is arranged on the upper surface of the top plate of the evaporation chamber and located below a pressing plate of the sliding block, and the output end of the piezoelectric sensor is electrically connected with the input end of the control switch group and controls automatic transportation of raw materials through the floating ball mechanism, so that the raw materials are conveyed more simply and conveniently.
Furthermore, the cooling device also comprises an active carbon block, wherein the active carbon block is arranged on the right side wall plate of the condensation chamber, corresponds to the liquid inlet pipe orifice of the return pipe, adsorbs impurities in the cooling liquid and is convenient for recycling the cooling liquid.
Further, still including straining the foam net, strain the foam net and set up in the roof inner wall of evaporating chamber, strain the lower extreme of foam net and kuppe and correspond, intercept the filtration to foam, impurity in the evaporation raw materials, help the condensation of raw materials, improve the condensation quality.
Compared with the prior art, the beneficial effects of the utility model are that: this automatic defeated ethyl acetate refining tower of material has following benefit:
1. the cooling liquid after the condensation is accomplished passes through the back flow and gets into preheating chamber, and the supplementary preheating tube of fin absorbs the residual heat in the cooling liquid and heats the raw materials, make full use of the residual heat in the cooling liquid, preheat the raw materials, is favorable to its follow-up heating evaporation.
2. The used heating steam, wherein a small amount of liquid and impurity pass through muffler lower extreme mouth of pipe periodic discharge under the valve regulation and control, and steam wherein gets into the compressor through the upper end gas outlet of muffler, and the compressor compresses steam and makes its pressure, temperature rise, and the enthalpy increases, then carries to the steam pipe in through last trachea and heats the evaporation to the raw materials, has realized the recycling of heating steam, has improved the availability factor of heating steam, is favorable to practicing thrift the cost.
3. When the raw materials is not enough in the evaporating chamber, floater and slider because self gravity along the guide arm gliding, when gliding to the clamp plate of slider pushed down the piezoelectric sensor, piezoelectric sensor transmission signal gave control switch group, control switch group control motorised valve is opened, carry the raw materials to get into in the cavity of evaporating chamber, when liquid level reachd a certain position in the evaporating chamber, liquid buoyancy promoted the floater upwards, it upwards slides to drive the slider, when the clamp plate of slider upwards left the piezoelectric sensor, piezoelectric sensor transmission signal closed for control switch group control motorised valve, stop the raw materials and carry, automatic defeated material has been realized, control is accurate, high convenience and rapidness, manpower and materials have been saved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal cross-sectional structure of the present invention;
FIG. 3 is the schematic structural diagram of the floating ball mechanism of the present invention
In the figure: 1 tower body, 2 support seats, 3 evaporation chambers, 4 steam pipes, 5 condensation chambers, 6 condensation pipes, 7 preheating mechanisms, 71 preheating chambers, 72 preheating pipes, 73 electric valves, 74 return pipes, 75 fins, 8 thermal circulation mechanisms, 81 compressors, 82 return pipes, 83 air supply pipes, 9 floating ball mechanisms, 91 guide rods, 92 floating balls, 93 sliding blocks, 94 piezoelectric sensors, 10 control switch sets, 11 diversion hoods, 12 air supply pipes, 13 ribbed plates, 14 activated carbon blocks and 15 foam filtering nets.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present embodiment provides a technical solution: an ethyl acetate refining tower capable of automatically conveying materials comprises a tower body 1, a preheating mechanism 7, a thermal circulation mechanism 8 and a floating ball mechanism 9;
the tower body 1: the inner wall of the evaporation chamber 3 is symmetrically provided with supporting seats 2, the upper surface of the lower supporting seat 2 is fixedly connected with an evaporation chamber 3, the inside of the evaporation chamber 3 is provided with a steam pipe 4 through a ribbed plate 13, the left air inlet of the steam pipe 4 extends to the outside through the inner hole of the left side plate of the evaporation chamber 3, the upper end of the top plate of the evaporation chamber 3 is provided with a flow guide cover 11, the upper end of the flow guide cover 11 is provided with a gas pipe 12, the outer arc surface of the gas pipe 12 is fixedly connected with the inner wall of the upper supporting seat 2, the upper surface of the upper supporting seat 2 is provided with a condensation chamber 5, the inside of the condensation chamber 5 is provided with a condensation pipe 6, the tower body 1 provides supporting and placing functions for all parts, raw materials enter the cavity of the evaporation chamber 3 through a feed inlet, the heating steam enters the steam pipe 4 through the air inlet, the raw materials are heated and evaporated in the flowing process, the raw materials are heated and evaporated into gas and then ascend, and enter the condensation pipe 6 along the flow guide cover 11 and the gas pipe 12, cooling liquid enters the cavity of the condensing chamber 5 through the feeding hole to condense gas in the condensing pipe 6, and the gas is condensed into liquid and then is output through the discharging hole, so that impurities in the raw materials are reduced, and the ethyl acetate is refined and purified;
preheating mechanism 7: the preheating mechanism 7 comprises a preheating chamber 71, a preheating pipe 72, an electric valve 73, a return pipe 74 and fins 75, the preheating chamber 71 is arranged on the upper surface of the tower bottom of the tower body 1, the preheating pipe 72 is arranged in the preheating chamber 71, a feed inlet of the preheating pipe 72 extends from an inner hole of a cylinder body of the preheating chamber 71 to the outside, a discharge outlet of the preheating pipe 72 extends from an inner hole of a top plate of the preheating chamber 71 to the inside of the evaporation chamber 3, the electric valve 73 is connected in series with the middle of a feed pipe of the preheating pipe 72, a discharge outlet of the return pipe 74 is fixedly connected with an inner wall of the cylinder body of the preheating chamber 71, a liquid inlet of the return pipe 74 is fixedly connected with an inner hole of a right side plate of the condensation chamber 5, an input end of the electric valve 73 is electrically connected with an output end of the control switch group 10, the fins 75 are arranged on an outer arc surface of the preheating pipe 72 in an array manner, the electric valve 73 controls raw materials to enter the preheating pipe 72 through the feed inlet, and the condensed cooling liquid enters the preheating chamber 71 through the return pipe 74, the fins 75 assist the preheating pipe 72 to absorb residual heat in the cooling liquid to heat the raw material, so that residual heat in the cooling liquid is fully utilized to preheat the raw material, and subsequent evaporation is facilitated;
the thermal cycle mechanism 8: the thermal circulation mechanism 8 comprises a compressor 81, an air return pipe 82 and an upper air pipe 83, the compressor 81 is arranged on the upper surface of the lower support seat 2, an air inlet of the compressor 81 is communicated with an air outlet of the steam pipe 4 through the air return pipe 82, an air outlet of the compressor 81 is communicated with an air inlet pipe of the steam pipe 4 through the upper air pipe 83, an input end of the compressor 81 is electrically connected with an output end of the control switch group 10, used heating steam is discharged from a lower end pipe orifice of the air return pipe 82 under the control of a valve, a small amount of liquid and impurities in the steam enter the compressor 81 through an upper end air outlet of the air return pipe 82, the compressor 81 compresses the steam to increase the pressure and the temperature of the steam, the heat enthalpy is increased, and the steam is conveyed into the steam pipe 4 through the upper air pipe 83 to heat and evaporate raw materials, so that the circulation use of the heating steam is realized, the use efficiency of the heating steam is improved, and the cost is saved;
the floating ball mechanism 9: the floating ball mechanism 9 comprises a guide rod 91, a floating ball 92, a sliding block 93 and a piezoelectric sensor 94, the guide rod 91 is arranged on the bottom plate of the evaporation chamber 3 and extends to the outside from the inner hole of the top plate, the upper part of the floating ball 92 is fixedly connected with the sliding block 93, the floating ball 92 and the sliding block 93 are both in sliding connection with the guide rod 91, the piezoelectric sensor 94 is arranged on the upper surface of the top plate of the evaporation chamber 3, the piezoelectric sensor 94 is positioned below the pressing plate of the sliding block 93, the output end of the piezoelectric sensor 94 is electrically connected with the input end of the control switch group 10, when the raw material in the evaporation chamber 3 is insufficient, the floating ball 92 and the sliding block 93 slide down along the guide rod 91 due to the self gravity, when the sliding down to the pressing plate of the sliding block 93 presses the piezoelectric sensor 94, the piezoelectric sensor 94 transmits a signal to the control switch group 10, the control switch group 10 controls the electric valve 73 to be opened, so as to convey the raw material into the cavity of the evaporation chamber 3, when the liquid level in the evaporation chamber 3 reaches a certain position, the buoyancy of the liquid pushes the floating ball 92 upwards to drive the sliding block 93 to slide upwards, and when the pressing plate of the sliding block 93 leaves the piezoelectric sensor 94 upwards, the piezoelectric sensor 94 transmits a signal to the control switch group 10 to control the electric valve 73 to be closed, so that the raw material conveying is stopped, the automatic material conveying is realized, the control is accurate, the convenience and the rapidness are realized, and the manpower and the material resources are saved;
wherein: the cooling liquid condenser also comprises an active carbon block 14, wherein the active carbon block 14 is arranged on the right side wall plate of the condensing chamber 5, the active carbon block 14 corresponds to the liquid inlet pipe orifice of the return pipe 74, impurities can be adsorbed, the used cooling liquid is filtered, and the cooling liquid is convenient to recover and recycle;
wherein: still including straining foam net 15, strain foam net 15 and set up in the roof inner wall of evaporating chamber 3, strain foam net 15 and correspond with the lower extreme of kuppe 11, filter foam and impurity in the evaporation raw materials, help the condensation of raw materials, improve the condensation quality.
The utility model provides a pair of automatic defeated material's acetic ether refining tower's theory of operation as follows:
when the raw material in the evaporation chamber 3 is insufficient, the floating ball 92 and the sliding block 93 slide downwards along the guide rod 91 due to the self gravity, and slide downwards until the pressing plate of the sliding block 93 presses the piezoelectric sensor 94, the piezoelectric sensor 94 transmits a signal to the control switch group 10, the control switch group 10 controls the electric valve 73 to open, the raw material is conveyed into the preheating pipe 72, the raw material is injected into the cavity of the evaporation chamber 3 through the preheating pipe 72, when the liquid level in the evaporation chamber 3 reaches a certain position, the liquid buoyancy pushes the floating ball 92 upwards to drive the sliding block 93 to slide upwards, when the pressing plate of the sliding block 93 upwards leaves the piezoelectric sensor 94, the piezoelectric sensor 94 transmits a signal to the control switch group 10 to control the electric valve 73 to close, the raw material conveying is stopped, meanwhile, the heating steam enters the steam pipe 4 through the air inlet, the raw material is heated and evaporated in the flowing process along the steam pipe 4, the used heating steam, a small amount of liquid and impurities are discharged through the pipe orifice at the lower end of the air return pipe 82 under the regulation and control of the valve, wherein, the steam enters the compressor 81 through the upper gas outlet of the gas return pipe 82, the compressor 81 compresses the steam to increase the pressure and temperature, the enthalpy is increased, then the steam is conveyed to the steam pipe 4 through the upper gas pipe 83 to continue heating evaporation of the raw material, the raw material rises after being heated and evaporated into gas, the gas is filtered by the foam filtering net 15 and enters the condensation pipe 6 along the diversion cover 11 and the gas pipe 12, the cooling liquid enters the cavity of the condensation chamber 5 through the feed inlet to condense the gas in the condensation pipe 6, the gas is condensed into liquid and then is output through the discharge outlet, the used cooling liquid enters the preheating chamber 71 through the return pipe 74 after adsorbing impurities by the active carbon block 14, the fin 75 assists the preheating pipe 72 to absorb the residual heat in the cooling liquid to preheat the raw material, the raw material is re-fed after evaporating a certain amount of the raw material in the evaporation chamber 3, and the processes are continuously circulated, realizing the continuous refining of the ethyl acetate.
It should be noted that the electric valve 73 disclosed in the above embodiments may be a D981X type electric valve, the compressor 81 may be an RTSR type steam compressor, the piezoelectric sensor 94 may be a QD95 type piezoelectric sensor, and the control switch group 10 is provided with control buttons corresponding to the electric valve 73, the compressor 81, and the piezoelectric sensor 94 one by one for controlling the operation thereof.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (8)
1. The utility model provides an automatic defeated ethyl acetate refining tower of material which characterized in that: comprises a tower body (1), a preheating mechanism (7), a thermal circulation mechanism (8) and a floating ball mechanism (9);
a tower body (1): the inner wall of the evaporation chamber is symmetrically provided with supporting seats (2), the upper surface of the lower supporting seat (2) is fixedly connected with an evaporation chamber (3), a steam pipe (4) is arranged in the evaporation chamber (3) through a rib plate (13), a left air inlet of the steam pipe (4) extends to the outside through a left side plate inner hole of the evaporation chamber (3), the upper end of a top plate of the evaporation chamber (3) is provided with a flow guide cover (11), the upper end of the flow guide cover (11) is provided with a gas pipe (12), the outer arc surface of the gas pipe (12) is fixedly connected with the inner wall of the upper supporting seat (2), the upper surface of the upper supporting seat (2) is provided with a condensation chamber (5), and a condensation pipe (6) is arranged in the condensation chamber (5);
preheating mechanism (7): is arranged on the upper surface of the tower bottom of the tower body (1);
thermal cycle mechanism (8): is fixedly connected with the upper surface of the lower supporting seat (2);
float ball mechanism (9): is arranged on the inner bottom surface of the evaporation chamber (3).
2. The ethyl acetate refining tower capable of automatically delivering materials as claimed in claim 1, wherein: the evaporator further comprises a control switch group (10), and the control switch group (10) is arranged on the upper surface of the top plate of the evaporation chamber (3).
3. The ethyl acetate refining tower capable of automatically feeding materials as claimed in claim 2, wherein: preheating mechanism (7) include preheating chamber (71), preheating pipe (72), motorised valve (73) and back flow (74), preheating chamber (71) set up in the tower bottom upper surface of tower body (1), the inside of preheating chamber (71) is equipped with preheating pipe (72), the feed inlet of preheating pipe (72) is extended to the outside by the stack shell hole of preheating chamber (71), the discharge gate of preheating pipe (72) is extended to the inside of evaporating chamber (3) by the roof hole of preheating chamber (71), the inlet pipe middle part of preheating pipe (72) is established ties and is had motorised valve (73), the liquid outlet of back flow (74) and the stack shell inner wall fixed connection of preheating chamber (71), the inlet of back flow (74) and the right side board hole fixed connection of condensing chamber (5), the output of control switch group (10) is connected to the input electricity of motorised valve (73).
4. The ethyl acetate refining tower capable of automatically feeding materials as claimed in claim 3, wherein: the preheating pipe is characterized by further comprising fins (75), wherein the fins (75) are arranged on the outer arc surface of the preheating pipe (72) in an array mode.
5. The ethyl acetate refining tower capable of automatically feeding materials as claimed in claim 2, wherein: the thermal cycle mechanism (8) comprises a compressor (81), an air return pipe (82) and an upper air pipe (83), the compressor (81) is arranged on the upper surface of the lower supporting seat (2), an air inlet of the compressor (81) is communicated with an air outlet of the steam pipe (4) through the air return pipe (82), the air outlet of the compressor (81) is communicated with an air inlet pipe of the steam pipe (4) through the upper air pipe (83), and the input end of the compressor (81) is electrically connected with the output end of the control switch group (10).
6. The ethyl acetate refining tower capable of automatically feeding materials as claimed in claim 2, wherein: the floating ball mechanism (9) comprises a guide rod (91), a floating ball (92), a sliding block (93) and a piezoelectric sensor (94), the guide rod (91) is arranged on a bottom plate of the evaporation chamber (3) and extends to the outside from an inner hole of a top plate of the evaporation chamber, the sliding block (93) is fixedly connected to the upper portion of the floating ball (92), the floating ball (92) and the sliding block (93) are both in sliding connection with the guide rod (91), the piezoelectric sensor (94) is arranged on the upper surface of the top plate of the evaporation chamber (3), the piezoelectric sensor (94) is located below a pressing plate of the sliding block (93), and an output end of the piezoelectric sensor (94) is electrically connected with an input end of the control switch group (10).
7. The ethyl acetate refining tower capable of automatically feeding materials as claimed in claim 3, wherein: the condenser also comprises an active carbon block (14), wherein the active carbon block (14) is arranged on the right side wall plate of the condensing chamber (5), and the active carbon block (14) corresponds to the liquid inlet pipe orifice of the return pipe (74).
8. The ethyl acetate refining tower capable of automatically delivering materials as claimed in claim 1, wherein: still including straining foam net (15), strain foam net (15) and set up in the roof inner wall of evaporating chamber (3), strain foam net (15) and correspond with the lower extreme of kuppe (11).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120971123.5U CN214680063U (en) | 2021-05-08 | 2021-05-08 | Acetic ether refining tower capable of automatically conveying materials |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120971123.5U CN214680063U (en) | 2021-05-08 | 2021-05-08 | Acetic ether refining tower capable of automatically conveying materials |
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| Publication Number | Publication Date |
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| CN214680063U true CN214680063U (en) | 2021-11-12 |
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| CN202120971123.5U Active CN214680063U (en) | 2021-05-08 | 2021-05-08 | Acetic ether refining tower capable of automatically conveying materials |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116351086A (en) * | 2023-03-21 | 2023-06-30 | 安徽瑞柏新材料有限公司 | Flash circulation type methyl acetate separation and purification equipment |
-
2021
- 2021-05-08 CN CN202120971123.5U patent/CN214680063U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116351086A (en) * | 2023-03-21 | 2023-06-30 | 安徽瑞柏新材料有限公司 | Flash circulation type methyl acetate separation and purification equipment |
| CN116351086B (en) * | 2023-03-21 | 2023-09-26 | 安徽瑞柏新材料有限公司 | Flash circulation type methyl acetate separation and purification equipment |
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