CN209571088U - A kind of modularization teaching of aspirin production line practices device - Google Patents
A kind of modularization teaching of aspirin production line practices device Download PDFInfo
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- CN209571088U CN209571088U CN201920121990.2U CN201920121990U CN209571088U CN 209571088 U CN209571088 U CN 209571088U CN 201920121990 U CN201920121990 U CN 201920121990U CN 209571088 U CN209571088 U CN 209571088U
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- BSYNRYMUTXBXSQ-UHFFFAOYSA-N Aspirin Chemical compound CC(=O)OC1=CC=CC=C1C(O)=O BSYNRYMUTXBXSQ-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 229960001138 acetylsalicylic acid Drugs 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 238000006243 chemical reaction Methods 0.000 claims abstract description 95
- 239000012452 mother liquor Substances 0.000 claims abstract description 52
- 238000001953 recrystallisation Methods 0.000 claims abstract description 51
- 238000002425 crystallisation Methods 0.000 claims abstract description 41
- 230000008025 crystallization Effects 0.000 claims abstract description 41
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000004891 communication Methods 0.000 claims abstract description 19
- 230000008676 import Effects 0.000 claims abstract description 17
- 150000008065 acid anhydrides Chemical class 0.000 claims abstract description 7
- 238000003032 molecular docking Methods 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 246
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 77
- 235000019441 ethanol Nutrition 0.000 claims description 28
- 239000002994 raw material Substances 0.000 claims description 21
- 238000005057 refrigeration Methods 0.000 claims description 15
- 238000010992 reflux Methods 0.000 claims description 14
- 239000008399 tap water Substances 0.000 claims description 12
- 235000020679 tap water Nutrition 0.000 claims description 12
- 238000006386 neutralization reaction Methods 0.000 claims description 10
- 230000003472 neutralizing effect Effects 0.000 claims description 10
- 150000003839 salts Chemical class 0.000 claims description 4
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims 1
- 230000005494 condensation Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 239000012043 crude product Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 239000002221 antipyretic Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 2
- 206010002383 Angina Pectoris Diseases 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000036592 analgesia Effects 0.000 description 1
- 229940121363 anti-inflammatory agent Drugs 0.000 description 1
- 239000002260 anti-inflammatory agent Substances 0.000 description 1
- 230000001754 anti-pyretic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000002612 cardiopulmonary effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 208000031225 myocardial ischemia Diseases 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 208000010110 spontaneous platelet aggregation Diseases 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 208000004371 toothache Diseases 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses a kind of modularization teachings of aspirin production line to practice device, including the utility module, reaction module and recrystallization module being docking together；Reaction module includes reaction kettle, crystallization kettle and the first mother liquor tank, the import of reaction kettle is connected with acetic anhydride head tank by the pipeline of connection acid anhydrides pump, the outlet of reaction kettle passes through the pipeline of connection bag filter and the inlet communication of crystallization kettle, the outlet of crystallization kettle passes through the pipeline of the first centrifuge of connection and the inlet communication of the first mother liquor tank, the outlet of first mother liquor tank passes through the inlet communication of pipeline and reaction kettle, aspirin production line can be carried out modularization by the utility model, in scale fabrication and installation to laboratory, facilitate and carries out practical teaching work, and it can freely assemble, the manipulative ability of exercise student ', creativity, and risk substantially reduces.
Description
Technical field
The utility model relates to chemical engineering experiment, the technical field of practical teaching equipment, in particular to a kind of aspirin is raw
The modularization teaching of producing line practices device.
Background technique
Aspirin (aspirin) also known as acetylsalicylic acid (acety lsalicylic acid), acetylsalicylic acid are a kind of
Time-honored analgesic-antipyretic is born on March 6th, 1899.It is mainly used for treatment flu, fever, headache, toothache, joint
Bitterly, rheumatism, moreover it is possible to inhibit platelet aggregation, for preventing and treating ischemic heart disease, angina pectoris, cardiopulmonary infraction, brain blood
Bolt is formed.Up to the present, aspirin has applied a century, becomes one of three big classical drugs in medical history, is still so far
Most widely used antipyretic, analgesia and anti-inflammatory agent in the world, also as the standard preparation for comparing and evaluating other drugs.Ah Si
Woods production line engineering practice teaching in often use, but organize the student manufacturer practice it is very inconvenient, and
Device is practiced with certain risk, therefore according to the modularization that the production of aspirin production line can be practiced in laboratory
With great significance, while entirely can will practice device disparate modules are resolved into according to process flow, can facilitate understanding and
And it can be freely combined.
Utility model content
Problem to be solved in the utility model is in view of the above-mentioned problems, providing a kind of module of aspirin production line
Change teaching practice device.
The technical solution of the utility model is: a kind of modularization teaching of aspirin production line practices device, including right
The reaction module and recrystallization module being connected together；
The reaction module includes reaction kettle, crystallization kettle and the first mother liquor tank, and the import of the reaction kettle passes through connection acid
The pipeline of acid anhydride pump is connected with acetic anhydride head tank, the pipeline and crystallization kettle that the outlet of the reaction kettle passes through connection bag filter
Inlet communication, the crystallization kettle outlet by connection the first centrifuge pipeline and the first mother liquor tank inlet communication, institute
The outlet for stating the first mother liquor tank passes through the inlet communication of pipeline and reaction kettle；
The recrystallization module includes ethanol raw material tank, recrystallization kettle and the second mother liquor tank, and the ethanol raw material tank goes out
Pipeline and the inlet communication that recrystallizes kettle of the mouth by connection ethyl alcohol pump, the outlet of the recrystallization kettle is centrifuged by connection second
The inlet communication of the pipeline of machine and the second mother liquor tank；
The reaction kettle, the crystallization kettle, first mother liquor tank, the ethanol raw material tank and second mother liquor tank are equal
Vacuum is connected by pipeline.
Preferably, the reaction module further includes neutralizing kettle, and the import for neutralizing kettle passes through pipeline and first mother
The outlet of flow container, the neutralization kettle are connected with vacuum also by pipeline.
Preferably, the reaction kettle, the crystallization kettle, the neutralization kettle pass through pipeline with the recrystallization kettle respectively and connect
There are the first condenser, the second condenser, third condenser and the 4th condenser.
Preferably, the reaction module and the recrystallization module are equipped with softened water upper hose, recirculated water upper hose, follow
Ring water return pipe, compressed air pipe, vacuum pipe, cold water upper hose, cold-water return pipe, hot water upper hose, hot water return pipe
And blow-off line, the softened water upper hose of the reaction module, recirculated water upper hose, recirculated water return pipe, compressed air pipe,
Vacuum pipe, cold water upper hose, cold-water return pipe, hot water upper hose, hot water return pipe, blow-off line respectively with the recrystallization
The softened water upper hose of module, recirculated water upper hose, recirculated water return pipe, compressed air pipe, vacuum pipe, water on cold water
Pipe, cold-water return pipe, hot water upper hose, hot water return pipe, blow-off line are detachably connected, hot water upper hose and hot water return pipe
Between by pipeline connect heat cycles pump, between cold water upper hose and cold-water return pipe by pipeline connection the second refrigeration cycle
Pump.
Preferably, the reaction kettle, the crystallization kettle and the import for neutralizing kettle pass through pipeline and react mould with described
The softened water upper hose of block is connected to, the softened water upper hose that the import of the recrystallization kettle passes through pipeline and the recrystallization module
Connection, the circulation water entrance of first condenser, second condenser and the third condenser respectively with it is described anti-
Answer module recirculated water upper hose, recirculated water return pipe connection, the circulation water entrance of the 4th condenser respectively with it is described
The recirculated water upper hose of reaction module, the connection of recirculated water return pipe.
Preferably, the reaction kettle, the crystallization kettle, the neutralization kettle, first mother liquor tank pass through respectively pipeline with
The vacuum pipe of the reaction module is connected to, and the ethanol raw material tank, second mother liquor tank pass through pipeline and the recrystallization
The vacuum pipe of module is connected to, and the reaction kettle, the crystallization kettle, the neutralization kettle, the outlet of first mother liquor tank are logical
Piping is connected to the blow-off line of the reaction module, the ethanol raw material tank, the recrystallization kettle and second mother liquor
The outlet of tank is connected to by pipeline with the blow-off line of the recrystallization module.
Preferably, the compression of the pipeline and the reaction module between the outlet and first centrifuge of the crystallization kettle
Air pipeline is connected to by pipeline, the pipeline and the recrystallization between the outlet and second centrifuge of the recrystallization kettle
The compressed air pipe of module is connected to by pipeline.
Preferably, the recrystallization module is additionally provided with discharge line and reflux line, and the recrystallization module is to being connected to essence
Module is evaporated, the outlet of second mother liquor tank is connect by pipeline with the discharge line, and the ethanol raw material tank passes through pipeline
It is connect with the reflux line, the discharge line is connect with the head tank in the rectifying module by pipeline, the reflux
Pipeline is connected to the tower reactor flow container in the rectifying module.
It preferably, further include public module, the public module includes tap water upper hose, softened water upper hose, circulation
Water pipe waterborne, recirculated water return pipe, compressed air pipe, vacuum pipe, blow-off line, water on the softened water of the public module
Pipe, recirculated water upper hose, recirculated water return pipe, compressed air pipe, vacuum pipe, blow-off line respectively with the reaction module
Softened water upper hose, recirculated water upper hose, recirculated water return pipe, compressed air pipe, vacuum pipe, blow-off line it is detachable
Connection, the public module are equipped with softening water column, the salt box connecting with softening water column, water softener tank, circulation water pot, air cushion
Tank and vacuum buffer tank, the tap water upper hose are connect by pipeline with the softening water column, and the softening water column passes through pipe
Road is connect with the import of the water softener tank, pipeline and the softening of the outlet of the water softener tank by connection softening water pump
The outlet of water pipe connection waterborne, the circulation water pot is connected to by the pipeline of connection water circulating pump with recirculated water upper hose, described
Recirculated water return pipe passes through pipeline and pneumatics by pipeline and the inlet communication for recycling water pot, the air cushion tank respectively
Machine, compressed air pipe connection, the vacuum buffer tank passes through pipeline respectively and is connected to vacuum pump, vacuum pipe, described public
Module is additionally provided with the first refrigeration cycle pump, and the first refrigeration cycle pump is connected to by two pipelines with circulation water pot.
Preferably, above-mentioned pipeline is respectively connected with valve.
The beneficial effects of the utility model are:
Aspirin production line can be carried out modularization, in scale fabrication and installation to laboratory by the utility model, side
Just practical teaching work is carried out, and can freely be assembled, manipulative ability, the creativity of exercise student ', and risk is big
It is big to reduce.
In reaction module, can using vacuum carry out material transfer, it is convenient and efficient, and using compressed air to from
Pipeline above scheming is cleaned, and avoids blocking；In addition bag filter, energy are set on the pipeline of reaction kettle outlet connection
It is enough to be filtered the substance of bulk, prevent vacuum from can not take away to block pipeline；Reaction kettle, crystallization kettle, neutralization kettle are all provided with
Condenser is set, the gas of volatilization can be made to be condensed back；Student can be allowed to do it yourself, fully understand actual production process, reason
Solve the reaction principle in each stage.
In utility module, individual tap water upper hose is set, it is arranged apart with recirculated water upper hose, recirculated water return pipe,
Facilitate and tap water upper hose position is adjusted according to the position of live tap water interface, will not influence recirculated water upper hose, recirculated water
The deployment scenarios of return pipe；The first refrigeration cycle pump is also set up in utility module, the student of school is more, when practicing device and needing long
Between run, the temperature of recirculated water can be increased constantly, and one end (section) circulating water temperature is excessively high after the time cannot play cooling effect, be learned
Life can forget recirculated water replacement, influence practice effect, circulating water temperature can be avoided to increase using refrigeration cycle pump, can also allow
The raw effect for understanding refrigeration cycle pump can deepen student's understanding.
Detailed description of the invention
Fig. 1 is the process principle figure of the utility model；
Fig. 2 is the structural schematic diagram of the utility model；
Fig. 3 is the structural schematic diagram of utility module；
Fig. 4 is the structural schematic diagram of reaction module；
Fig. 5, which attaches most importance to, crystallizes the structural schematic diagram of module；
Fig. 6 is the structural schematic diagram of rectifying module；
In figure: 1. tap water upper hoses, 1-1. softened water upper hose, 1-2. recirculated water upper hose, 1-3. recirculated water return water
Pipe, 1-4. cold water upper hose, 1-5. cold-water return pipe, 1-6. hot water upper hose, 1-7. hot water return pipe, 2. compressed air hoses
Road, 3. vacuum pipes, 4. blow-off lines, 5. discharge lines, 6. reflux lines, 7. heat cycles pump, the first refrigeration cycle of gy1.
Pump, gy2. salt box, gy3. softening water column, gy4. water softener tank, gy5. softening water pump, gy6. circulation water pot, gy7. air compressor machine,
Gy8. air cushion tank, gy9. vacuum buffer tank, gy10. vacuum pump, 8. second refrigeration cycle pump, fy1. acetic anhydride head tank,
Fy2. acid anhydrides pump, fy3. reaction kettle, fy4. crystallization kettle, the first centrifuge of fy5., the first mother liquor tank of fy6., in fy7. and kettle,
Fy8. the first condenser, the second condenser of fy9., fy10. third condenser, fy11. bag filter, c1. ethanol raw material tank,
C2. ethyl alcohol pump, c3. recrystallize kettle, the second centrifuge of c4., the second mother liquor tank of c5., the 4th condenser of c6..
Specific embodiment
Specific embodiment of the present utility model is referring to Fig. 1-6:
A kind of modularization teaching of aspirin production line practices device, such as Fig. 1-6, including the reaction mould being docking together
Block and recrystallization module；
Reaction module includes reaction kettle fy3, crystallization kettle fy4, neutralizes kettle fy7 and the first mother liquor tank fy6, reaction kettle fy3's
Import is connected with acetic anhydride head tank fy1 by the pipeline that connection acid anhydrides pumps fy2, and the outlet of reaction kettle fy3 passes through connection pocket type
The outlet of the pipeline of filter fy11 and the inlet communication of crystallization kettle fy4, crystallization kettle fy4 passes through the first centrifuge fy5's of connection
The outlet of the inlet communication of pipeline and the first mother liquor tank fy6, the first mother liquor tank fy6 is connected by the import of pipeline and reaction kettle fy3
It is logical；
Recrystallization module includes ethanol raw material tank c1, recrystallizes kettle c3 and the second mother liquor tank c5, and ethanol raw material tank c1's goes out
Mouthful by connection ethyl alcohol pump c2 pipeline and recrystallization kettle c3 inlet communication, recrystallization kettle c3 outlet by connection second from
The inlet communication of the pipeline of scheming c4 and the second mother liquor tank c5；
Reaction kettle fy3, crystallization kettle fy4, the first mother liquor tank fy6, ethanol raw material tank c1 and the second mother liquor tank c5 pass through pipe
Road connects vacuum；
The import for neutralizing kettle fy7 passes through the outlet of pipeline and the first mother liquor tank fy6, neutralizes kettle fy7 also by pipeline
It is connected with vacuum；
Reaction kettle fy3, crystallization kettle fy4, neutralization kettle fy7 and recrystallization kettle c3 pass through pipeline respectively and are connected with the first condenser
Fy8, the second condenser fy9, third condenser fy10 and the 4th condenser c6.
It is practiced in device at this, reaction module and recrystallization module are equipped with softened water upper hose 1-1, recirculated water upper hose
1-2, recirculated water return pipe 1-3, compressed air pipe 2, vacuum pipe 3, cold water upper hose 1-4, cold-water return pipe 1-5, hot water
Upper hose 1-6, hot water return pipe 1-7 and blow-off line 4, the softened water upper hose 1-1 of reaction module, recirculated water upper hose 1-2,
Recirculated water return pipe 1-3, compressed air pipe 2, vacuum pipe 3, cold water upper hose 1-4, cold-water return pipe 1-5, water on hot water
Pipe 1-6, hot water return pipe 1-7, blow-off line 4 respectively with recrystallization module softened water upper hose 1-1, recirculated water upper hose 1-
2, recirculated water return pipe 1-3, compressed air pipe 2, vacuum pipe 3, cold water upper hose 1-4, cold-water return pipe 1-5, on hot water
Water pipe 1-6, hot water return pipe 1-7, blow-off line 4 are detachably connected, and are led between hot water upper hose 1-6 and hot water return pipe 1-7
Piping connects heat cycles pump 7, is followed between cold water upper hose 1-4 and cold-water return pipe 1-5 by the second refrigeration of pipeline connection
Ring pump 8.
In the reaction module for practicing device, reaction kettle fy3, crystallization kettle fy4 and the import for neutralizing kettle fy7 pass through pipe
Road is connected to the softened water upper hose 1-1 of reaction module, the softening that the import of recrystallization kettle c3 passes through pipeline and recrystallization module
Water pipe 1-1 connection waterborne, the circulation water entrance difference of the first condenser fy8, the second condenser fy9 and third condenser fy10
It is connected to the recirculated water upper hose 1-2 of reaction module, recirculated water return pipe 1-3, the circulation water entrance point of the 4th condenser c6
It is not connected to the recirculated water upper hose 1-2 of reaction module, recirculated water return pipe 1-3.
It is practiced in device at this, reaction kettle fy3, crystallization kettle fy4, neutralization kettle fy7, the first mother liquor tank fy6 pass through pipe respectively
Road is connected to the vacuum pipe 3 of reaction module, and ethanol raw material tank c1, the second mother liquor tank c5 pass through pipeline and recrystallize the true of module
Vacant duct 3 be connected to, reaction kettle fy3, crystallization kettle fy4, neutralize kettle fy7, the first mother liquor tank fy6 outlet pass through pipeline with react
The blow-off line 4 of module is connected to, ethanol raw material tank c1, the outlet for recrystallizing kettle c3 and the second mother liquor tank c5 pass through pipeline with again
The blow-off line 4 for crystallizing module is connected to.
It practices in device at this, the pressure of pipeline and reaction module between the outlet and the first centrifuge fy5 of crystallization kettle fy4
Contracting air pipeline 2 is connected to by pipeline, pipeline and recrystallization module between the outlet and the second centrifuge c4 of recrystallization kettle c3
Compressed air pipe 2 by pipeline be connected to, crystallization kettle fy4 outlet between the first centrifuge fy5 pipeline with react mould
The softened water upper hose 1-1 of block by pipeline be connected to, recrystallization kettle c3 outlet the second centrifuge c4 between pipeline with again
The softened water upper hose 1-1 for crystallizing module is connected to by pipeline, the heat of the heat exchange jacket difference reaction module outside reaction kettle fy3
Water pipe 1-6 waterborne, hot water return pipe 1-7 connection, the heat exchange jacket outside reaction kettle fy3 are also distinguished on the recirculated water of reaction module
Water pipe 1-2, recirculated water return pipe 1-3 connection, heat exchange jacket outside crystallization kettle fy4 respectively with the cold water upper hose of reaction module
1-4, cold-water return pipe 1-5 connection, neutralize kettle fy7 outside heat exchange jacket respectively with the recirculated water upper hose 1-2 of reaction module,
Recirculated water return pipe 1-3 connection recrystallizes the heat exchange jacket outside kettle c3 and recrystallizes the hot water upper hose 1-6 of module, heat respectively
Water return pipe 1-7 connection recrystallizes cold water upper hose 1-4, cold water that the heat exchange jacket outside kettle c3 also recrystallizes module respectively
Return pipe 1-5 connection, reaction kettle fy3, crystallization kettle fy4 and neutralize kettle fy7 outside heat exchange jacket pass through respectively pipeline with react
The blow-off line 4 of module connects, and recrystallizes the heat exchange jacket outside kettle c3 and is connected by the blow-off line 4 of pipeline and recrystallization module
It connects.
It practices in device at this, recrystallization module is additionally provided with discharge line 5 and reflux line 6, and recrystallization module is to being connected to
The outlet of rectifying module, the second mother liquor tank c5 is connect by pipeline with discharge line 5, and ethanol raw material tank c1 passes through pipeline and reflux
Pipeline 6 connects, and discharge line 5 is connect with the head tank in rectifying module by pipeline, the tower in reflux line 6 and rectifying module
The connection of kettle liquid tank.
It further includes public module that this, which practices device, and public module includes tap water upper hose 1, softened water upper hose 1-1, follows
Ring water pipe 1-2 waterborne, recirculated water return pipe 1-3, compressed air pipe 2, vacuum pipe 3, blow-off line 4, public module it is soft
Change water pipe 1-1 waterborne, recirculated water upper hose 1-2, recirculated water return pipe 1-3, compressed air pipe 2, vacuum pipe 3, sewage pipe
Road 4 respectively with the softened water upper hose 1-1 of reaction module, recirculated water upper hose 1-2, recirculated water return pipe 1-3, compressed air hose
Road 2, vacuum pipe 3, blow-off line 4 are detachably connected, what public module was connect equipped with softening water column gy3, with softening water column gy3
Salt box gy2, water softener tank gy4, circulation water pot gy6, air cushion tank gy8 and vacuum buffer tank gy9, tap water upper hose 1 are logical
Piping is connect with softening water column gy3, and softening water column gy3 is connect by pipeline with the import of water softener tank gy4, water softener tank
The outlet of gy4 is connect by the pipeline of connection softening water pump gy5 with softened water upper hose 1-1, and the outlet of circulation water pot gy6 passes through
The pipeline of connection water circulating pump is connected to recirculated water upper hose 1-2, and recirculated water return pipe 1-3 passes through pipeline and circulation water pot gy6
Inlet communication, air cushion tank gy8 passes through pipeline respectively and is connected to air compressor machine gy7, compressed air pipe 2, vacuum buffer tank
Gy9 passes through pipeline respectively and is connected to vacuum pump gy10, vacuum pipe 3, and public module is additionally provided with the first refrigeration cycle pump gy1, the
One refrigeration cycle pump gy1 is connected to by two pipelines with circulation water pot gy6, and tap water upper hose 1 and softened water upper hose 1-1 are equal
It is connected to by pipeline with circulation water pot.
The each pipeline for practicing device is respectively connected with valve.
Aspirin production line can be carried out modularization, in scale fabrication and installation to laboratory by the utility model, side
Just practical teaching work is carried out, and can freely be assembled, manipulative ability, the creativity of exercise student ', and risk is big
It is big to reduce.
In reaction module, solution of acetic anhydride is added to acetic anhydride head tank fy1, salicylic acid is added to reaction kettle fy3, opens
Reaction kettle fy3 and acid anhydrides pump fy2 are opened, acetic anhydride head tank pumps fy2 by acid anhydrides and is added in reaction kettle fy3, then passes through reaction
The concentrated sulfuric acid is added to reaction kettle fy3 in constant pressure funnel on kettle fy3, opens heating circulating pump, opens on heating circulating pump and hot water
Water pipe 1-6, hot water return pipe 1-7 connection pipeline on valve VA206, valve VA207, by heat exchange jacket on reaction kettle fy3 with
Valve VA209, VA211 are opened respectively on the pipeline of hot water upper hose 1-6, hot water return pipe 1-7 connection, will be on reaction kettle fy3
Valve VA208, VA212 keep closing on the pipeline that heat exchange jacket is connected to recirculated water upper hose 1-2, recirculated water return pipe 1-3
It closes, is heated to reaction kettle fy3, open the pipe that the first condenser fy8 is connect with recirculated water upper hose 1-2, recirculated water return pipe 1-3
Valve on road, is passed through recirculated water, and the gas that reaction kettle fy3 is volatilized is condensed back in band reaction kettle fy3, rises to reaction temperature
At 75 DEG C, observing response phenomenon adjusts reaction temperature by control valve VA209, VA211 in time, guarantees that temperature is no more than 80
DEG C, backflow phenomenon is observed, reaction 40-50min is kept, the reaction time arrives, and stops heating, closes valve VA209, VA211, opens
Valve VA210 on valve heat exchange jacket and sewage pipe connecting pipe the hot water in heat exchange jacket is discharged, Open valve
VA208, VA212 are passed through recirculated water to the heat exchange jacket of reaction kettle fy3 and cool down to reaction kettle fy3；To reaction temperature
It is down between 30-40 DEG C, opens baiting valve VA201, VA202, open vacuum solenoid VA215, it will be in reaction kettle fy3 through vacuum
Liquid material batch turning opens the second refrigeration cycle pump 8 to crystallization kettle fy4, opens crystallization kettle fy4 heat exchange jacket and cold and hot upper hose, cold
Valve VA223, VA218 of water return pipe 1-5 connecting tube, are passed through circulating water to the heat exchange jacket of crystallization kettle fy4 and cool down,
It opens softened water upper hose 1-1 and is communicated to valve on the pipeline of crystallization kettle fy4, a small amount of softened water, water are passed through into crystallization kettle fy4
Excessive acetic anhydride is solved, it is a small amount of that softened water is repeatedly added, add water to pay attention to temperature change in the process and cools down in time；Setting speed is extremely
20-30rpm or so continues to be passed through cold water cooling, crystallization is precipitated；It is precipitated to crystal, opens vacuum system, keep vacuum buffer
Tank gy9 pressure is -0.05MPa, opens valve VA216 on the pipeline that connect with vacuum pipe 3 of the first mother liquor tank fy6, starts the
One centrifuge fy5 opens baiting valve VA219, VA221, starts centrifugal filtration；Mother liquor enters in mother liquor tank V202, through vacuum system
System is opened and neutralizes valve VA217 on the pipeline that kettle fy7 is connect with vacuum pipe 3, and to neutralizing in kettle fy7, addition is matched for mother liquor batch turning
The lye set carries out neutralization reaction, environment protection emission processing；Softened water upper hose 1-1 can also be connected to valve VA219,
Valve is opened on pipeline between VA221, is passed through a small amount of softening water washing aspirin crude product；Mother in first mother liquor tank fy6
Liquid can also be by opening vacuum solenoid VA214 on the pipeline that connect with vacuum pipe 3 of reaction kettle fy3, by mother liquor down to anti-
It answers in kettle fy3, carries out secondary response.
In recrystallization module, the aspirin crude product of reaction module preparation is added to recrystallization kettle c3, utilizes ethyl alcohol pair
Aspirin crude product crystallizes again, and the course of work crystallized in the course of work and reaction module is identical, and recrystallization module is additionally provided with
Discharge line 5 and reflux line 6, recrystallization module pass through pipeline and row to rectifying module, the outlet of the second mother liquor tank c5 is connected to
Pipeline 5 connects out, and ethanol raw material tank c1 is connect by pipeline with reflux line 6, the head tank in discharge line 5 and rectifying module
It is connected by pipeline, reflux line 6 is connected to the tower reactor flow container in rectifying module, and the mother liquor in the second mother liquor tank c5 is by discharge
Pipeline 5 is discharged into the head tank in rectifying module, after rectifying, can generate ethyl alcohol, the ethyl alcohol that rectifying generates is by opening second
Vacuum solenoid VA306 flows through reflux line 6 and returns to ethanol raw material tank on the pipeline that raw polyol tank c1 is connect with vacuum pipe 3
C1, the specific work process of rectifying module is referring to application No. is 201810481173 .8, denomination of invention are as follows: Multifunctional fine
Work production line practices the Chinese invention patent of device, has carried out open explanation to rectifying module.
Tap water prepares softened water and is stored into water softener tank gy4, recirculated water by softening water column gy3 in utility module
Can use the softened water prepared can also directly utilize tap water, self-setting as needed, and water softener tank gy4 passes through
Softening water pump gy5 connect with softened water upper hose 1-1, is recycled water pot gy6 and is passed through water circulating pump and recirculated water upper hose 1-2, follows
Ring water return pipe 1-3 connection provides softened water and recirculated water for subsequent modules, and circulation water pot gy6 is also connected with the first refrigeration
Circulating pump gy1, is able to maintain the low-temperature condition of recirculated water, and compressed air surge tank gy8 and vacuum buffer tank gy9 are separately connected sky
Press gy7 and vacuum pump gy10, compressed air surge tank gy8 and vacuum buffer tank gy9 also pass through pipeline and compressed air respectively
Pipeline 2 and vacuum pipe 3 connect, and compressed air surge tank gy8 and vacuum buffer tank gy9 are respectively that subsequent process provides stabilization
Compressed air source and vacuum source.
It is practiced in device at this, each tank body all connects sewage pipe by pipeline, easy to clean.
Claims (10)
1. a kind of modularization teaching of aspirin production line practices device, it is characterised in that: including the reaction being docking together
Module and recrystallization module；
The reaction module includes reaction kettle, crystallization kettle and the first mother liquor tank, and the import of the reaction kettle passes through connection acid anhydrides pump
Pipeline be connected with acetic anhydride head tank, the outlet of the reaction kettle by the pipeline of connection bag filter and crystallization kettle into
Mouthful connection, the outlet of the crystallization kettle is by the pipeline of the first centrifuge of connection and the inlet communication of the first mother liquor tank, and described the
The outlet of one mother liquor tank passes through the inlet communication of pipeline and reaction kettle；
The recrystallization module includes ethanol raw material tank, recrystallization kettle and the second mother liquor tank, and the outlet of the ethanol raw material tank is logical
The pipeline of connection ethyl alcohol pump and the inlet communication of recrystallization kettle are crossed, the outlet of the recrystallization kettle passes through the second centrifuge of connection
The inlet communication of pipeline and the second mother liquor tank；
The reaction kettle, the crystallization kettle, first mother liquor tank, the ethanol raw material tank and second mother liquor tank pass through
Pipeline connects vacuum.
2. the modularization teaching of aspirin production line according to claim 1 practices device, it is characterised in that: described anti-
Answering module further includes neutralizing kettle, the import for neutralizing kettle by the outlet of pipeline and first mother liquor tank, it is described in
Vacuum is connected with also by pipeline with kettle.
3. the modularization teaching of aspirin production line according to claim 2 practices device, it is characterised in that: described anti-
It answers kettle, the crystallization kettle, the neutralization kettle and the recrystallization kettle to pass through pipeline respectively and is connected with the first condenser, the second condensation
Device, third condenser and the 4th condenser.
4. the modularization teaching of aspirin production line according to claim 3 practices device, it is characterised in that: described anti-
Module and the recrystallization module is answered to be equipped with softened water upper hose, recirculated water upper hose, recirculated water return pipe, compressed air hose
Road, vacuum pipe, cold water upper hose, cold-water return pipe, hot water upper hose, hot water return pipe and blow-off line, the reaction mould
The softened water upper hose of block, recirculated water upper hose, recirculated water return pipe, compressed air pipe, vacuum pipe, cold water upper hose,
Cold-water return pipe, hot water upper hose, hot water return pipe, blow-off line respectively with it is described recrystallization module softened water upper hose,
Recirculated water upper hose, recirculated water return pipe, compressed air pipe, vacuum pipe, cold water upper hose, cold-water return pipe, on hot water
Water pipe, hot water return pipe, blow-off line are detachably connected.
5. the modularization teaching of aspirin production line according to claim 4 practices device, it is characterised in that: described anti-
Kettle, the crystallization kettle and the import for neutralizing kettle is answered to pass through pipeline and be connected to the softened water upper hose of the reaction module,
The import of the recrystallization kettle is connected to by pipeline with the softened water upper hose of the recrystallization module, first condenser,
The circulation water entrance of second condenser and the third condenser respectively with the recirculated water upper hose of the reaction module,
Recirculated water return pipe connection, the circulation water entrance of the 4th condenser respectively with water on the recirculated water of the reaction module
Pipe, the connection of recirculated water return pipe.
6. the modularization teaching of aspirin production line according to claim 5 practices device, it is characterised in that: described anti-
Kettle, the crystallization kettle, the neutralization kettle, first mother liquor tank is answered to pass through the vacuum pipe of pipeline Yu the reaction module respectively
Connection, the ethanol raw material tank, second mother liquor tank are connected to by pipeline with the vacuum pipe of the recrystallization module, described
Reaction kettle, the crystallization kettle, the outlet for neutralizing kettle, first mother liquor tank are by the row of pipeline and the reaction module
The connection of dirty pipeline, the outlet of the ethanol raw material tank, the recrystallization kettle and second mother liquor tank pass through pipeline with it is described
Recrystallize the blow-off line connection of module.
7. the modularization teaching of aspirin production line according to claim 6 practices device, it is characterised in that: the knot
The outlet of brilliant kettle is connected to the compressed air pipe of the reaction module by pipeline with the pipeline between first centrifuge,
The compressed air pipe of pipeline and the recrystallization module between the outlet and second centrifuge of the recrystallization kettle is logical
Piping connection.
8. the modularization teaching of aspirin production line according to claim 7 practices device, it is characterised in that: described heavy
Crystallization module is additionally provided with discharge line and reflux line, and the recrystallization module is to being connected to rectifying module, second mother liquor tank
Outlet connect with the discharge line by pipeline, the ethanol raw material tank passes through pipeline and connect with the reflux line, institute
It states discharge line to connect with the head tank in the rectifying module by pipeline, in the reflux line and the rectifying module
The connection of tower reactor flow container.
9. the modularization teaching of aspirin production line according to claim 8 practices device, it is characterised in that: further include
Public module, the public module include tap water upper hose, softened water upper hose, recirculated water upper hose, recirculated water return pipe,
Compressed air pipe, vacuum pipe, blow-off line, softened water upper hose, the recirculated water upper hose, recirculated water of the public module
Return pipe, compressed air pipe, vacuum pipe, blow-off line respectively with softened water upper hose, the recirculated water of the reaction module
Upper hose, recirculated water return pipe, compressed air pipe, vacuum pipe, blow-off line are detachably connected, and the public module is equipped with
Softening water column, water softener tank, recycles water pot, air cushion tank and vacuum buffer tank at salt box connect with softening water column, it is described oneself
Water upper hose is connect by pipeline with the softening water column, and the softening water column passes through the import of pipeline and the water softener tank
The outlet of connection, the water softener tank is connect by the pipeline of connection softening water pump with the softened water upper hose, the circulation
Water pot outlet by connection water circulating pump pipeline be connected to recirculated water upper hose, the recirculated water return pipe pass through pipeline and
The inlet communication of the circulation water pot, the air cushion tank pass through pipeline respectively and are connected to air compressor machine, compressed air pipe, institute
It states vacuum buffer tank and passes through pipeline respectively and be connected to vacuum pump, vacuum pipe, the public module is additionally provided with the first refrigeration cycle
Pump, the first refrigeration cycle pump are connected to by two pipelines with circulation water pot.
10. the modularization teaching of -9 described in any item aspirin production lines practices device according to claim 1, feature exists
In: the pipeline is respectively connected with valve.
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| CN201920121990.2U CN209571088U (en) | 2019-01-24 | 2019-01-24 | A kind of modularization teaching of aspirin production line practices device |
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| CN109559589A (en) * | 2019-01-24 | 2019-04-02 | 河南莱帕克物联装备技术股份有限公司 | A kind of modularization teaching of aspirin production line practices device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109559589A (en) * | 2019-01-24 | 2019-04-02 | 河南莱帕克物联装备技术股份有限公司 | A kind of modularization teaching of aspirin production line practices device |
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