CN113476898B - Device and method for preparing methyl oxophenylacetate - Google Patents
Device and method for preparing methyl oxophenylacetate Download PDFInfo
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- CN113476898B CN113476898B CN202110828292.8A CN202110828292A CN113476898B CN 113476898 B CN113476898 B CN 113476898B CN 202110828292 A CN202110828292 A CN 202110828292A CN 113476898 B CN113476898 B CN 113476898B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0208—Separation of non-miscible liquids by sedimentation
- B01D17/0214—Separation of non-miscible liquids by sedimentation with removal of one of the phases
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/08—Preparation of carboxylic acids or their salts, halides or anhydrides from nitriles
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
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Abstract
The invention discloses a device and a method for preparing methyl oxophenylacetate, belonging to the field related to chemical preparation. A device for preparing methyl oxophenylacetate comprises a shaft sleeve, a flushing block, a sliding cavity and a preparation box; a plurality of collecting grooves are formed in the outer circular surface of the shaft sleeve, each collecting groove is circumferentially arrayed with the rotating shaft as the center of a circle, and one side wall, close to the rotating shaft, of each collecting groove is an inclined surface; the side wall of each collecting groove is fixedly provided with an electromagnetic valve, the inner wall of each sliding cavity is connected with a sliding block in a sliding mode, the front end face of each sliding block is rotatably provided with a rotating shaft, each rotating shaft penetrates through a shaft sleeve, and each rotating shaft is fixedly connected with the corresponding shaft sleeve; this scheme can be even adsorb the grease through removing and pivoted collection strip and collect to can pass through gravity landing to the collecting vat with the grease on every collection strip in, thereby be convenient for collect.
Description
Technical Field
The invention belongs to the field related to chemical preparation, and particularly relates to a device and a method for preparing methyl oxophenylacetate.
Background
Methyl oxophenylacetate is also named as methyl benzoylformate and methyl phenylacetate, and is prepared through adding sodium chloride and sulfuric acid into a reaction bottle, stirring at room temperature, dropping benzoylnitrile, controlling the temperature at about 30 deg.c, maintaining for 3 hr, dropping methanol, heating and refluxing for 5 hr, and decompression to eliminate methanol to obtain the product. Prepared by esterification of benzoyl acid and methanol. Adding cyclomethanol and benzoylformic acid into a reaction kettle, and slowly adding sulfuric acid while stirring. After heating under reflux for 12 hours, the excess methanol was recovered. Neutralizing the ester with dilute sodium carbonate solution, separating oil layer, and extracting water layer with benzene. Combining the extracting solution and the oil layer, drying the extracting solution by anhydrous sodium sulfate, distilling the extracting solution, firstly recovering the solvent benzene, then decompressing and distilling the solvent benzene to remove low-boiling-point substances, and then collecting 137-146 ℃ (2.4 kPa) fraction to obtain the methyl benzoylformate.
In the reaction process of the methyl oxophenyl acetate, the extraction and reaction steps of the oil are complex, manual collection and extraction are needed slowly, time is wasted, and the existing extraction device and method for the methyl oxophenyl acetate oil are difficult to extract and react on an oil layer quickly and meet requirements.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a device for preparing methyl oxophenylacetate, which can realize uniform adsorption and collection of grease through moving and rotating collection strips, and can slide the grease on each collection strip into a collection tank through gravity, thereby facilitating collection.
The invention relates to a device for preparing methyl oxophenylacetate, which comprises a shaft sleeve, a flushing block, a sliding cavity and a preparation box; a plurality of collecting grooves are formed in the outer circular surface of the shaft sleeve, each collecting groove is circumferentially arrayed with the rotating shaft as the center of a circle, and one side wall, close to the rotating shaft, of each collecting groove is an inclined surface; the side wall of each collecting groove is fixedly provided with an electromagnetic valve, and the electromagnetic valve is positioned at the lowest end of the inclined wall; the inner wall of the sliding cavity is connected with a sliding block in a sliding mode, the front side end face of the sliding block is rotatably provided with a rotating shaft, the rotating shaft penetrates through the shaft sleeve, and the rotating shaft is fixedly connected with the shaft sleeve; a mixed liquid cavity with an upward opening is arranged in the preparation box, an extractant cavity with an upward opening is arranged in the preparation box, the extractant cavity is communicated with the top side of the mixed liquid cavity, the flushing block is in sliding connection with the front wall and the rear wall of the extractant cavity, and the flushing block is in sliding connection with the front wall and the rear wall of the mixed liquid cavity; a mixed liquid is arranged in the mixed liquid cavity and is positioned at the lower side of the shaft sleeve; the sliding cavity is located at the rear side of the mixed liquid cavity, the sliding cavity is located at the rear side of the extracting agent cavity, the sliding cavity is communicated with the mixed liquid cavity, and the sliding cavity is communicated with the extracting agent cavity.
As a further development of the invention, the inclined walls of each collecting trough are fixedly provided with a plurality of collecting strips.
As a further improvement of the invention, a hose extending to the outside of the preparation box is arranged on one side end surface of the scouring block close to the shaft sleeve, the hose is in sliding connection with a part penetrating through the preparation box, and external extracting solution can flow out from one side end surface of the scouring block close to the shaft sleeve through the hose.
As a further improvement of the invention, the left wall of the extractant cavity is fixedly provided with a plurality of guide slide rods, each guide slide rod penetrates through the scouring block, and each guide slide rod is connected with the scouring block in a sliding manner.
As a further improvement of the invention, one end of each slide guiding rod, which is positioned at the right side of the scouring block, is fixedly provided with a limiting block, and each limiting block can limit the scouring block.
As a further improvement of the invention, a thrust spring is fixedly arranged on the outer circular surface of each slide guiding rod, one end of each thrust spring is fixedly connected with the end surface of one side of the scouring block, which is far away from the shaft sleeve, the other end of each thrust spring is fixedly connected with the left wall of the mixed liquid cavity, and when the scouring block is not stressed, each thrust spring can push the scouring block to be contacted with each limit block.
As a further improvement of the invention, a rack is fixedly arranged on the lower wall of the sliding cavity, a gear positioned on the rear side of the shaft sleeve is fixedly arranged on the outer circular surface of the rotating shaft, and the gear is in meshing transmission with the rack.
As a further improvement of the invention, a screw motor is fixedly arranged on one side wall of the sliding cavity, a screw is fixedly arranged on one side end face of the screw motor, the screw is rotatably connected with the other side wall of the sliding cavity, the screw penetrates through the sliding block, and the screw is in threaded connection with the sliding block.
As a further improvement of the invention, the screw motor and each electromagnetic valve are connected with an external power and control system, and the screw motor and each electromagnetic valve can be driven to start and close by the external power and control system.
A process for the preparation of methyl oxophenylacetate comprising the steps of:
s1, adding sodium chloride and sulfuric acid into a reaction bottle, and stirring at room temperature;
s2, dropwise adding benzoyl nitrile into the reaction bottle, controlling the temperature to be about 30 ℃, and preserving heat for 3 hours after dropwise adding;
s3, dripping methanol into the reaction bottle, heating and refluxing for 5 hours, and removing the methanol under reduced pressure after the reaction is finished to obtain a finished product;
s4, adding the cyclomethanol and the benzoylformic acid into a reaction pot, slowly adding sulfuric acid while stirring, heating and refluxing for 12 hours, and recovering excessive methanol;
s5, neutralizing the esterified substance with dilute sodium carbonate solution, separating oil layer, extracting water layer with benzene, and mixing the extractive solution with oil layer;
s6, combining the extracting solution and the oil layer, drying the mixture by anhydrous sodium sulfate, distilling the mixture, recovering the solvent benzene, decompressing and distilling low-boiling-point substances, and collecting 137-146 ℃ (2.4 kPa) fraction to obtain the methyl benzoylformate.
A method for the production of methyl oxophenylacetate, an apparatus for the production of methyl oxophenylacetate used in step S5, the method of use comprising:
s501, electric power can be input through a circuit through external electric power and a control system, so that a screw motor is controlled to be started, the screw motor is started to drive a screw to rotate, the sliding block is driven to slide in a sliding cavity through threaded connection of the screw and the sliding block, and when the sliding block slides in the sliding cavity, a rotating shaft can be driven to rotate through meshing transmission of a gear and a rack, so that a collecting strip is driven to rotate around the rotating shaft;
s502, grease on the top layer of the mixed liquid is adsorbed by the rotation and movement of the collection strip, when the collection strip rotates to face upwards, the grease slides into the collection tank along the collection strip due to the left and right gravity to be collected, the scouring block is pushed to move by the continuous movement of the shaft sleeve, and when the scouring block is pushed by the shaft sleeve, the scouring block can overcome the thrust of each thrust spring and slide on each guide slide rod;
s503, when each collecting bar is contacted with one side end face of the flushing block, grease on the collecting bar is adhered to one side end face of the flushing block and slides downwards to the extracting agent cavity under the action of gravity;
s504, flushing external extracting solution into the preparation box through a hose, wherein the extracting solution can flow out from the end face of one side, close to the shaft sleeve, of the flushing block and then flows downwards into the extracting agent cavity, and when the extracting solution flows downwards, oil adsorbed by the collecting strips can be flushed into the extracting agent cavity, so that the oil and the extracting solution are mixed in the extracting agent cavity;
s505, each solenoid valve is started so that each solenoid valve is in a communication state, and the grease which slides into the collecting groove at the moment can pass through the solenoid valve to flow outside the collecting groove due to the fact that the lower wall of the collecting groove is an inclined wall, so that the grease flows into the extracting agent cavity to be mixed with the extracting solution.
Compared with the prior art, the invention has the advantages that: this scheme can be even through remove and pivoted collection strip adsorb the grease and collect to can pass through gravity landing to the collecting vat with the grease on every collection strip, thereby be convenient for collect, then after the collection strip with wash away the piece contact, when washing into the extraction machine chamber with the extract through the hose, can wash away the grease on the collection strip, thereby be convenient for draw the grease, can emit the grease in the collecting vat with the solenoid valve intercommunication simultaneously, thereby reduce the loss of grease in drawing the in-process.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the full-section structure of the present invention;
FIG. 3 is a schematic view of the structure A-A of FIG. 2;
FIG. 4 is an enlarged view of the structure of C in FIG. 3;
FIG. 5 is an enlarged view of D of FIG. 4;
FIG. 6 is a schematic view of the structure of B-B of FIG. 2;
FIG. 7 is an enlarged view of the structure of E in FIG. 2;
FIG. 8 is an enlarged view of F in FIG. 2
FIG. 9 is a flow diagram of a process for the preparation of methyl oxophenylacetate;
FIG. 10 is a flow diagram of an apparatus for the preparation of methyl oxophenylacetate.
The reference numbers in the figures illustrate:
11. preparing a box; 12. a mixing fluid chamber; 13. an extractant chamber; 14. punching a brush block; 15. a rack; 16. a screw; 17. a hose; 18. a thrust spring; 19. a guide slide bar; 20. a limiting block; 21. a slider; 22. a gear; 23. a rotating shaft; 24. a screw motor; 25. a sliding cavity; 26. a shaft sleeve; 27. collecting tank; 28. collecting strips; 29. an electromagnetic valve.
Detailed Description
The first embodiment is as follows: referring to fig. 1-8, an apparatus for preparing methyl oxophenylacetate comprises a shaft sleeve 26, a flushing block 14, a sliding chamber 25 and a preparation box 11; a plurality of collecting grooves 27 are formed in the outer circumferential surface of the shaft sleeve 26, each collecting groove 27 is circumferentially arrayed with the rotating shaft 23 as the center of a circle, and one side wall of each collecting groove 27 close to the rotating shaft 23 is an inclined surface; the side wall of each collecting groove 27 is fixedly provided with an electromagnetic valve 29, and the electromagnetic valve 29 is positioned at the lowest end of the inclined wall; the inner wall of the sliding cavity 25 is connected with a sliding block 21 in a sliding manner, the front end face of the sliding block 21 is rotatably provided with a rotating shaft 23, the rotating shaft 23 penetrates through a shaft sleeve 26, and the rotating shaft 23 is fixedly connected with the shaft sleeve 26; a mixed liquid cavity 12 with an upward opening is arranged in the preparation box 11, an extracting agent cavity 13 with an upward opening is arranged in the preparation box 11, the extracting agent cavity 13 is communicated with the top side of the mixed liquid cavity 12, the flushing block 14 is in sliding connection with the front wall and the rear wall of the extracting agent cavity 13, and the flushing block 14 is in sliding connection with the front wall and the rear wall of the mixed liquid cavity 12; mixed liquid is arranged in the mixed liquid cavity 12 and is positioned at the lower side of the shaft sleeve 26; the sliding cavity 25 is positioned at the rear side of the mixed liquid cavity 12, the sliding cavity 25 is positioned at the rear side of the extracting agent cavity 13, the sliding cavity 25 is communicated with the mixed liquid cavity 12, and the sliding cavity 25 is communicated with the extracting agent cavity 13.
The inclined wall of each collecting trough 27 is fixedly provided with a plurality of collecting strips 28.
In particular use, when the sleeve 26 rotates, each collection bar 28 can rotate with the sleeve 26, so as to adsorb the grease on the top layer of the mixed liquid.
The end face of one side of the scouring block 14 close to the shaft sleeve 26 is provided with a hose 17 extending to the outer side of the preparation box 11, the hose 17 is in sliding connection with a part penetrating through the preparation box 11, and external extracting solution can flow out from the end face of one side of the scouring block 14 close to the shaft sleeve 26 through the hose 17.
During the specific use, with external extract through hose 17 flush into preparation case 11 in, the extract can flow out from the one side terminal surface that erodes piece 14 and be close to axle sleeve 26 to flow downwards to in the extractant chamber 13, can flush the adsorbed grease of collection strip 28 to in the extractant chamber 13 when the extract flows downwards, and when axle sleeve 26 promoted the erode piece 14, hose 17 can follow the motion of erode piece 14, and at hose 17 with run through the part slip of preparation case 11.
The left wall of the extractant cavity 13 is fixedly provided with a plurality of guide slide rods 19, each guide slide rod 19 penetrates through the scouring block 14, and each guide slide rod 19 is slidably connected with the scouring block 14.
In particular use, the flush block 14 can slide on the slide guide bar 19 when the flush block 14 is pushed by the sleeve 26.
And a limiting block 20 is fixedly arranged at one end of each guide sliding rod 19, which is positioned at the right side of the flushing block 14, and each limiting block 20 can limit the flushing block 14.
When the thrust spring 18 pushes the flushing block 14, the limit block 20 can limit the flushing block 14 in a specific use.
The outer circular surface of each slide guide rod 19 is fixedly provided with a thrust spring 18, one end of each thrust spring 18 is fixedly connected with the end surface of one side of the scouring block 14 away from the shaft sleeve 26, the other end of each thrust spring 18 is fixedly connected with the left wall of the mixed liquid cavity 12, and when the scouring block 14 is not stressed, each thrust spring 18 can push the scouring block 14 to be in contact with each limit block 20.
In a specific use, when the shaft sleeve 26 does not push the punching block 14 any more, the thrust spring 18 can push the punching block 14 to move towards the side of the limiting block 20.
The lower wall of the sliding cavity 25 is fixedly provided with a rack 15, the outer circular surface of the rotating shaft 23 is fixedly provided with a gear 22 positioned at the rear side of the shaft sleeve 26, and the gear 22 is in meshing transmission with the rack 15.
When the sliding block 21 slides in the sliding cavity 25 in specific use, the rotating shaft 23 can be driven to rotate through the meshing transmission of the gear 22 and the rack 15, so that the collection strip 28 is driven to rotate around the rotating shaft 23.
A screw motor 24 is fixedly arranged on one side wall of the sliding cavity 25, a screw 16 is fixedly arranged on one side end face of the screw motor 24, the screw 16 is rotatably connected with the other side wall of the sliding cavity 25, the screw 16 penetrates through the sliding block 21, and the screw 16 is in threaded connection with the sliding block 21.
When the screw motor 24 is started through external power and a control system in specific use, the screw motor 24 can drive the screw 16 to rotate, so that the sliding block 21 is driven to slide in the sliding cavity 25 through threaded connection.
The screw motor 24 and each solenoid valve 29 are connected to an external power and control system, by which the screw motor 24 and each solenoid valve 29 can be driven to open and close.
When the screw motor 24 and the electromagnetic valve 29 are used, power can be input through a circuit by an external power and control system, so that the opening and closing of the screw motor 24 and the electromagnetic valve 29 are controlled.
Please refer to fig. 9, which is a method for preparing methyl oxophenylacetate, comprising the following steps:
s1, adding sodium chloride and sulfuric acid into the reaction bottle, and stirring at room temperature.
S2, dropwise adding benzoyl nitrile into the reaction bottle, controlling the temperature to be about 30 ℃, and preserving the heat for 3 hours after dropwise adding.
S3, dripping methanol into the reaction bottle, heating and refluxing for 5 hours, and removing the methanol under reduced pressure after the reaction is finished to obtain the finished product.
S4, adding the cyclomethanol and the benzoylformic acid into a reaction pot, slowly adding the sulfuric acid while stirring, heating and refluxing for 12 hours, and then recovering the excessive methanol.
S5, neutralizing the esterified product with diluted sodium carbonate solution, separating oil layer, extracting water layer with benzene, and mixing the extractive solution with the oil layer.
S6, combining the extracting solution and the oil layer, drying the extracting solution and the oil layer by anhydrous sodium sulfate, distilling the extracting solution, recovering the solvent benzene, decompressing and distilling the low-boiling-point substances, and collecting 137-146 ℃ (2.4 kPa) fraction to obtain the methyl benzoylformate.
Referring to a method for preparing methyl oxophenylacetate of FIGS. 9 to 10, an apparatus for preparing methyl oxophenylacetate used in step S5, the method of use comprising:
s501, through external electric power and control system can pass through circuit input electric power, thereby control screw motor 24 starts, thereby screw motor 24 starts and drives screw 16 and rotate, thereby it slides in sliding chamber 25 to drive sliding block 21 through screw 16 and sliding block 21' S threaded connection, when sliding block 21 slides in sliding chamber 25, thereby can drive axis of rotation 23 through the meshing transmission of gear 22 with rack 15 and rotate, thereby it rotates around axis of rotation 23 to drive collection strip 28.
S502, grease on the top layer of the mixed liquid is adsorbed by the rotation and movement of the collection strip 28, when the collection strip 28 rotates to face upwards, the grease slides along the collection strip 28 to the collection groove 27 due to the gravity to be collected, the flushing block 14 is pushed to move by the continuous movement of the shaft sleeve 26, and when the flushing block 14 is pushed by the shaft sleeve 26, the flushing block 14 can slide on each guide slide rod 19 against the thrust of each thrust spring 18.
When each collection bar 28 contacts one side end face of the flushing block 14, the grease on the collection bar 28 adheres to one side end face of the flushing block 14 and slides down into the extractant chamber 13 under the action of gravity S503.
S504, outside extracting solution is flushed into the preparation box 11 through the hose 17, the extracting solution can flow out from the end face, close to the shaft sleeve 26, of one side of the flushing block 14 and then flows downwards into the extracting agent cavity 13, and when the extracting solution flows downwards, grease adsorbed by the collecting strip 28 can be flushed into the extracting agent cavity 13, so that the grease and the extracting solution are mixed in the extracting agent cavity 13.
S505, each solenoid valve 29 is activated to enable each solenoid valve 29 to be in a communication state, and grease sliding into the collecting groove 27 can flow out of the collecting groove 27 through the solenoid valve 29 due to the fact that the lower wall of the collecting groove 27 is an inclined wall, so that the grease can flow into the extracting agent cavity 13 to be mixed with extracting solution.
The working principle is as follows: the external power and the control system can input power through a circuit, so as to control the screw motor 24 to be started, the screw motor 24 is started to drive the screw 16 to rotate, the sliding block 21 is driven to slide in the sliding cavity 25 through the threaded connection of the screw 16 and the sliding block 21, when the sliding block 21 slides in the sliding cavity 25, the rotating shaft 23 can be driven to rotate through the meshing transmission of the gear 22 and the rack 15, the collection strip 28 is driven to rotate around the rotating shaft 23, the grease on the top layer of the mixed liquid is adsorbed through the rotation and the movement of the collection strip 28, when the collection strip 28 rotates to face upwards, the grease can slide into the collection groove 27 along the collection strip 28 to be collected due to the gravity, at the moment, the flushing block 14 is driven to move through the continuous movement of the shaft sleeve 26, when the flushing block 14 is driven by the shaft sleeve 26, the flushing block 14 can slide on each guide sliding rod 19 by overcoming the thrust of each thrust spring 18, at this time, each collecting strip 28 is in contact with one side end face of the scouring block 14, at this time, part of grease on the collecting strips 28 is adhered to one side end face of the scouring block 14 and slides downwards into the extractant cavity 13 under the action of gravity, meanwhile, external extracting solution is flushed into the preparation box 11 through the hose 17, the extracting solution can flow out from one side end face of the scouring block 14 close to the shaft sleeve 26 and then flows downwards into the extractant cavity 13, when the extracting solution flows downwards, the grease adsorbed by the collecting strips 28 can be flushed into the extractant cavity 13, so that the grease and the extracting solution are mixed in the extractant cavity 13, meanwhile, each solenoid valve 29 is driven to be in a communication state through external power and a control system, at this time, the grease sliding into the collecting tank 27 can flow out of the collecting tank 27 through the solenoid valves 29 due to the fact that the lower wall of the collecting tank 27 is an inclined wall, so that the grease flows into the extractant cavity 13 and is mixed with the extracting solution, the above steps are repeated so that the grease on the top layer of the mixing liquid cavity 12 is collected into the extracting agent cavity 13 as completely as possible for mixing.
Claims (6)
1. An apparatus for the preparation of methyl oxophenylacetate, characterized in that: comprises a shaft sleeve (26), a scouring block (14), a sliding cavity (25) and a preparation box (11); a plurality of collecting grooves (27) are formed in the outer circular surface of the shaft sleeve (26), each collecting groove (27) is circumferentially arrayed with the rotating shaft (23) as the center of a circle, and one side wall, close to the rotating shaft (23), of each collecting groove (27) is an inclined surface; an electromagnetic valve (29) is fixedly arranged on the side wall of each collecting groove (27), and the electromagnetic valve (29) is positioned at the lowest end of the inclined wall; the inner wall of the sliding cavity (25) is connected with a sliding block (21) in a sliding mode, the front end face of the sliding block (21) is rotatably provided with a rotating shaft (23), the rotating shaft (23) penetrates through the shaft sleeve (26), and the rotating shaft (23) is fixedly connected with the shaft sleeve (26); a mixed liquid cavity (12) with an upward opening is arranged in the preparation box (11), an extracting agent cavity (13) with an upward opening is arranged in the preparation box (11), the extracting agent cavity (13) is communicated with the top side of the mixed liquid cavity (12), the flushing block (14) is in sliding connection with the front wall and the rear wall of the extracting agent cavity (13), and the flushing block (14) is in sliding connection with the front wall and the rear wall of the mixed liquid cavity (12); mixed liquid is arranged in the mixed liquid cavity (12), and the mixed liquid is positioned at the lower side of the shaft sleeve (26); the sliding cavity (25) is positioned at the rear side of the mixed liquid cavity (12), the sliding cavity (25) is positioned at the rear side of the extracting agent cavity (13), the sliding cavity (25) is communicated with the mixed liquid cavity (12), and the sliding cavity (25) is communicated with the extracting agent cavity (13); a plurality of collecting strips (28) are fixedly arranged on the inclined wall of each collecting tank (27); the end face of one side, close to the shaft sleeve (26), of the scouring block (14) is provided with a hose (17) extending to the outer side of the preparation box (11), the hose (17) is in sliding connection with a part penetrating through the preparation box (11), and external extracting solution can flow out from the end face of one side, close to the shaft sleeve (26), of the scouring block (14) through the hose (17).
2. The apparatus according to claim 1, wherein the apparatus comprises: the left wall of the extractant cavity (13) is fixedly provided with a plurality of guide sliding rods (19), each guide sliding rod (19) penetrates through the flushing block (14), and each guide sliding rod (19) is in sliding connection with the flushing block (14).
3. The apparatus according to claim 2, wherein the apparatus comprises: one end of each guide sliding rod (19) on the right side of the flushing block (14) is fixedly provided with a limiting block (20), and each limiting block (20) can limit the flushing block (14).
4. The apparatus according to claim 3, wherein the apparatus comprises: and a thrust spring (18) is fixedly arranged on the outer circular surface of each guide sliding rod (19), one end of each thrust spring (18) is fixedly connected with the end surface of one side of the scouring block (14) far away from the shaft sleeve (26), the other end of each thrust spring (18) is fixedly connected with the left wall of the mixed liquid cavity (12), and when the scouring block (14) is not stressed, each thrust spring (18) can push the scouring block (14) to be in contact with each limiting block (20).
5. The apparatus for the production of methyl oxophenylacetate as defined in claim 1, wherein: the fixed rack (15) that is equipped with of slip chamber (25) lower wall, the outer disc of axis of rotation (23) is fixed to be equipped with gear (22) that are located axle sleeve (26) rear side, gear (22) and rack (15) meshing transmission, a lateral wall of slip chamber (25) is fixed and is equipped with screw motor (24), a side end face of screw motor (24) is fixed and is equipped with screw rod (16), another lateral wall rotation of screw rod (16) and slip chamber (25) is connected, sliding block (21) is run through in screw rod (16), screw rod (16) and sliding block (21) threaded connection.
6. The apparatus according to claim 5, wherein the apparatus further comprises: the screw motor (24) and each electromagnetic valve (29) are connected with an external power and control system, and the screw motor (24) and each electromagnetic valve (29) can be driven to be started and closed through the external power and control system.
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| KR20110004139U (en) * | 2009-10-20 | 2011-04-27 | 유근수 | Auto grease trap |
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| CN206969217U (en) * | 2017-05-22 | 2018-02-06 | 枣阳市先飞高科农药有限公司 | A kind of automatic access device for methyl benzoylformate |
| CN110639234A (en) * | 2019-09-26 | 2020-01-03 | 郑宇飞 | A waste liquid collects filter equipment for bioengineering assembly line refines line |
| CN212610038U (en) * | 2020-06-16 | 2021-02-26 | 潍坊市鸢飞再生资源有限公司 | Oil-water separation equipment in automobile recovery processing |
| CN213192599U (en) * | 2020-08-05 | 2021-05-14 | 福建豪邦化工有限公司 | Special grease removing device for industrial glycerin |
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