CN207294189U - The separation and recovery system of silicon carbide micro-powder waste material - Google Patents
The separation and recovery system of silicon carbide micro-powder waste material Download PDFInfo
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- CN207294189U CN207294189U CN201720939832.9U CN201720939832U CN207294189U CN 207294189 U CN207294189 U CN 207294189U CN 201720939832 U CN201720939832 U CN 201720939832U CN 207294189 U CN207294189 U CN 207294189U
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- silicon carbide
- solvent
- carbide micro
- leaching
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- 229910010271 silicon carbide Inorganic materials 0.000 title claims abstract description 87
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 title claims abstract description 83
- 239000000843 powder Substances 0.000 title claims abstract description 76
- 238000000926 separation method Methods 0.000 title claims abstract description 57
- 238000011084 recovery Methods 0.000 title claims abstract description 37
- 239000002699 waste material Substances 0.000 title claims abstract description 37
- 239000002904 solvent Substances 0.000 claims abstract description 98
- 238000002386 leaching Methods 0.000 claims abstract description 93
- 239000002480 mineral oil Substances 0.000 claims abstract description 40
- 235000010446 mineral oil Nutrition 0.000 claims abstract description 40
- 238000002156 mixing Methods 0.000 claims abstract description 40
- 238000003860 storage Methods 0.000 claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 claims abstract description 25
- 239000010779 crude oil Substances 0.000 claims abstract description 23
- 238000001556 precipitation Methods 0.000 claims abstract description 22
- 239000004576 sand Substances 0.000 claims abstract description 22
- 238000001704 evaporation Methods 0.000 claims abstract description 11
- 239000003595 mist Substances 0.000 claims abstract description 11
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 42
- 238000003756 stirring Methods 0.000 claims description 17
- 239000003921 oil Substances 0.000 claims description 15
- 239000011229 interlayer Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 230000029058 respiratory gaseous exchange Effects 0.000 claims 1
- 230000008020 evaporation Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000004064 recycling Methods 0.000 abstract description 5
- 239000002244 precipitate Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 8
- 238000009835 boiling Methods 0.000 description 5
- 239000003513 alkali Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002360 explosive Substances 0.000 description 3
- 238000005554 pickling Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910003978 SiClx Inorganic materials 0.000 description 2
- 230000036760 body temperature Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000007516 brønsted-lowry acids Chemical class 0.000 description 1
- 150000007528 brønsted-lowry bases Chemical class 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 125000003963 dichloro group Chemical group Cl* 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000010812 mixed waste Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- Carbon And Carbon Compounds (AREA)
Abstract
The utility model discloses the separation and recovery system of silicon carbide micro-powder waste material, including mixing tank, settling tank, evaporator, condensing tower, solvent tank, crude oil tank and storage sand bucket, obtain separation raw material and be sent into leach in settling tank by mixing tank hybrid silicon carbide micro mist and mineral oil, and the leaching solvent in solvent tank is sent into settling tank and is mixed with separating raw material, after silicon carbide micro-powder precipitation, the mixing clear liquid for leaching silicon carbide micro-powder precipitation top in settling tank is detached and is pumped in evaporator, pass through evaporator solvent, steam is set to input solvent tank storage solvent after being condensed into condensing tower again;After evaporation of the solvent in evaporator is complete, remaining mineral oil input crude oil tank storage;Leach settling tank in silicon carbide micro-powder precipitate completely separation after input storage sand bucket in store.The utility model will can efficiently separate between silicon carbide micro-powder and mineral oil, and accomplish the recycling of leaching solvent and realize zero emission in production process.
Description
Technical field
It the utility model is related to magnetic metal technical field of waste recovery, point of more particularly to a kind of silicon carbide micro-powder waste material
From recovery system.
Background technology
In photovoltaic, rare-earth trade, numerical control multi-line cutting machine is during its machining, and silicon carbide micro-powder is through excessive
Particle diameter, which can crush, after secondary cutting grinding diminishes, so as to cause cutting efficiency, quality to decline.Finally have to it and play suspension
The mineral oil of effect is discharged together, so as to cause a large amount of silicon carbide micro-powders and mineral oil, the mixed waste material of impurity can not environmental protection
Processing.
The existing conventional processing technique to silicon carbide waste is:Silicon carbide micro-powder containing mineral oil after impurity is screened into
Row pickling and alkali cleaning.But this treatment technology needs to use substantial amounts of bronsted lowry acids and bases bronsted lowry in processing procedure, its handle cost compared with
Height, and the wasting of resources can be caused, and bring the pollution of environment.And the mineral after treatment, contained in silicon carbide waste
Oil is also destroyed at the same time, can not accomplish the recycling to mineral oil.
Therefore, the prior art could be improved and improve.
Utility model content
In view of in place of above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of silicon carbide micro-powder waste material
Separation and recovery system, will can be efficiently separated between silicon carbide micro-powder and mineral oil, and accomplish the recycling of leaching solvent
And realize zero emission in production process.
The utility model technical scheme applied to solve the technical problem is as follows:
A kind of separation and recovery system of silicon carbide micro-powder waste material, including:
For hybrid silicon carbide micro mist and mineral oil, the pumpable mixing tank for separating raw material is made;
For adding leaching solvent and hybrid separation raw material, the leaching settling tank for precipitating silicon carbide micro-powder;
For heating the mixed liquor containing mineral oil and leaching solvent, the evaporator for evaporating leaching solvent;
For the steam of leaching solvent to be condensed into the condensing tower of liquid;
For storing the solvent tank of leaching solvent;
For storing the crude oil tank of the mineral oil after separating;
For storing the storage sand bucket of the silicon carbide micro-powder after separating;
The mixing tank with leach settling tank connect, it is described leaching settling tank also respectively with evaporator, solvent tank, store up sand bucket
Connected with condensing tower, the evaporator is also connected with condensing tower and crude oil tank respectively, and the condensing tower is also connected with solvent tank.
In the separation and recovery system of the silicon carbide micro-powder waste material, separation raw material volume is leaching in the leaching settling tank
Go out 1/3rd of the volume of settling tank, the volume of the leaching solvent is 1/3rd of the volume of leaching settling tank.
In the separation and recovery system of the silicon carbide micro-powder waste material, it is provided with the leaching settling tank and connects with evaporator
Logical liquid suction pipe, the mouth of pipe of the liquid suction pipe are arranged at 1/3rd of the height of evaporator.
In the separation and recovery system of the silicon carbide micro-powder waste material, blender is provided with the leaching settling tank, is soaked
Go out and stirring motor is provided with the top of settling tank, the shaft connection of the blender and stirring motor.
In the separation and recovery system of the silicon carbide micro-powder waste material, the mixing tank and leach settling tank between, it is described
Leach between settling tank and evaporator, be all provided between the evaporator and crude oil tank, and/or between the solvent tank and mixing tank
It is equipped with diaphragm pump.
In the separation and recovery system of the silicon carbide micro-powder waste material, the bottom of the leaching settling tank and evaporator is all provided with
It is equipped with blow-off valve.
In the separation and recovery system of the silicon carbide micro-powder waste material, it is provided between the leaching settling tank and storage sand bucket
For the air float conveyer being delivered to the silicon carbide micro-powder after separation in storage sand bucket.
In the separation and recovery system of the silicon carbide micro-powder waste material, breather valve, the leaching settling tank, evaporation are further included
Tank, solvent tank, crude oil tank are connected with breather valve.
In the separation and recovery system of the silicon carbide micro-powder waste material, the leaching solvent is dichloromethane.
In the separation and recovery system of the silicon carbide micro-powder waste material, the evaporator is equal outside the tank body with leaching settling tank
It is provided with conduction oil interlayer.
Compared to the prior art, a kind of separation and recovery system of silicon carbide micro-powder waste material provided by the utility model, including:
Mixing tank, settling tank, evaporator, condensing tower, solvent tank, crude oil tank and storage sand bucket, by mixing tank hybrid silicon carbide micro mist and ore deposit
Thing oil, makes pumpable separation raw material;The separation raw material, which is sent into, to be leached in settling tank, and makes the leaching in solvent tank
Solvent is sent into settling tank, and with separating raw material mixing, after silicon carbide micro-powder precipitation, it is micro- will to leach carborundum in settling tank
The mixing clear liquid of powder precipitation top is detached and is pumped in evaporator, by evaporator heating containing mineral oil and leaching solvent
Mixed liquor, evaporates leaching solvent, then steam is inputted solvent tank storage solvent after being condensed into condensing tower;In evaporator
After evaporation of the solvent is complete, remaining mineral oil input crude oil tank storage;The silicon carbide micro-powder leached in settling tank precipitates separation completely
Stored afterwards in input storage sand bucket.The separation and recovery system of silicon carbide micro-powder waste material provided by the utility model can be by using normal pressure
The technique repeatedly leached down, silicon carbide micro-powder is accomplished to be completely separated with mineral oil, and accomplish solvent recycling and
Realize the zero-emission in production process, avoid that conventional solvent is inflammable, explosive danger, while reduce pickling alkali washing process pair
The pollution of environment.
Brief description of the drawings
Fig. 1 is each device annexation figure of the separation and recovery system of silicon carbide micro-powder waste material provided by the utility model.
Fig. 2 is the structure diagram of leaching settling tank provided by the utility model.
Fig. 3 is the structure diagram of evaporator provided by the utility model.
Wherein:10th, mixing tank;20th, settling tank is leached;21st, stirring motor;22nd, blender;23rd, liquid suction pipe;30th, evaporate
Tank;40th, condensing tower;50th, solvent tank;60th, crude oil tank;70th, sand bucket is stored up;80th, diaphragm pump;90th, air float conveyer;100th, breathe
Valve;110th, blow-off valve;120th, conduction oil interlayer.
Embodiment
To make the purpose of this utility model, technical solution and effect clearer, clear and definite, develop simultaneously implementation referring to the drawings
The utility model is further described in example.It should be appreciated that specific embodiment described herein is only explaining this practicality
It is new, it is not used to limit the utility model.
Referring to Fig. 1, it connects for each device of the separation and recovery system of silicon carbide micro-powder waste material provided by the utility model
Graph of a relation is connect, which includes:
For hybrid silicon carbide micro mist and mineral oil, the pumpable mixing tank 10 for separating raw material is made;
For adding leaching solvent and hybrid separation raw material, the leaching settling tank 20 for precipitating silicon carbide micro-powder;
For heating the mixed liquor containing mineral oil and leaching solvent, the evaporator 30 for evaporating leaching solvent;
For the steam of leaching solvent to be condensed into the condensing tower 40 of liquid;
For storing the solvent tank 50 of leaching solvent;
For storing the crude oil tank 60 of the mineral oil after separating;
For storing the storage sand bucket 70 of the silicon carbide micro-powder after separating;
The mixing tank 10 with leach settling tank 20 connect, it is described leaching settling tank 20 also respectively with evaporator 30, solvent
Tank 50, storage sand bucket 70 are connected with condensing tower 40, and the evaporator 30 is also connected with condensing tower 40 and crude oil tank 60 respectively, described cold
Solidifying tower 40 is also connected with solvent tank 50.
The separation and recovery system separation silicon carbide micro-powder of the utility model and the mode of mineral oil are:By mixing tank mixing carbon
SiClx micro mist and mineral oil, make pumpable separation raw material;The separation raw material, which is sent into, to be leached in settling tank, and is made molten
Leaching solvent in agent tank is sent into settling tank, and with separating raw material mixing, after silicon carbide micro-powder precipitation, is precipitated leaching
The mixing clear liquid of silicon carbide micro-powder precipitation top is detached and is pumped in evaporator in tank, contains mineral oil by evaporator heating
With the mixed liquor of leaching solvent, evaporate leaching solvent, then make steam be condensed into condensing tower after input solvent tank storage it is molten
Agent;After evaporation of the solvent in evaporator is complete, remaining mineral oil input crude oil tank storage;Leach the silicon carbide micro-powder in settling tank
Stored completely after precipitation separation in input storage sand bucket.The separation and recovery system of silicon carbide micro-powder waste material provided by the utility model can
By using the technique repeatedly leached under normal pressure, silicon carbide micro-powder is accomplished to be completely separated with mineral oil, and accomplish solvent
Recycle and realize the zero-emission in production process, avoid that conventional solvent is inflammable, explosive danger, while reduce acid
Wash pollution of the alkali washing process to environment.
In the present embodiment, the silicon carbide micro-powder waste material and the volume ratio of mineral oil added in mixing tank 10 is 6:4, herein
The separation raw material mixed under proportioning can save the premise of mineral oil, possess enough mobility.
Preferably, the leaching solvent is dichloromethane(Chemical formula:CH2CI2).It is one that the present embodiment, which requires leaching solvent,
Kind of low boiling point, do not burn, the environmentally friendly solvent of low cost, and dichloromethane is in numerous solvents, more satisfactory when meeting above-mentioned requirements
Solvent.Certainly, in other embodiments, other leaching solvents similar with the chemical property of dichloromethane can be also used, this
Utility model is not restricted this.
It is preferably, described to leach 1/3rd of the volume that separation raw material volume in settling tank 20 is leaching settling tank 20,
The volume of the leaching solvent is 1/3rd of the volume of leaching settling tank 20.This hybrid plan can ensure mixed process peace
Enough separation raw materials are mixed on the premise of complete, save separated number and time.Certainly, other mixing sides be may also set up
Case, but the mixed proportion of fixedly separated raw material and solvent in each production process is needed, easy to later multipass time leaching control
The oil content of preparing silicon carbide micro mist.
Also referring to Fig. 2, it is the structure diagram provided by the utility model for leaching settling tank 20, and described leach is sunk
Blender 22 is provided with shallow lake tank 20, the top for leaching settling tank 20 is provided with stirring motor 21, the blender 22 and stirring
The shaft connection of motor 21.The separation raw material from mixing tank 10 and the leaching from solvent tank 50 are sent into settling tank 20 when leaching
After going out solvent, stirring motor 21 works and drives to be rotated positioned at the blender 22 for leaching 20 bottom of settling tank, makes mineral oil and leaching
Go out solvent to be sufficiently mixed.Terminate to rotate after a certain period of time when stirring motor 21 works, at this time due to leaching solvent and mineral oil
Mixing so that viscosity and the suspending power drop of mineral oil are weak, so as to make the silicon carbide micro-powder rapid precipitation in mixed liquor.
Further, the liquid suction pipe 23 connected with evaporator 30, the liquid suction pipe are provided with the leaching settling tank 20
23 mouth of pipe is arranged at 1/3rd of the height for leaching settling tank 20.After the mixing liquid precipitate predetermined time, carborundum
Micro mist will be completed to precipitate, and its deposition location can be slightly below the height of 23 mouth of pipe of liquid suction pipe, and at this moment liquid suction pipe 23 can be by carborundum
The mixing clear liquid of micro mist precipitation top is detached into evaporator 30.
Further, the mixing tank 10 and leach between settling tank 20, leaching settling tank 20 and the evaporator 30
Between, be both provided with diaphragm pump between the evaporator 30 and crude oil tank 60, and/or between the solvent tank 50 and mixing tank 10
80.Diaphragm pump 80 is a kind of widely used conveying machinery, can effectively convey various high viscositys or the band in the present embodiment
The fluid of particle.
Referring to Fig. 3, it is the structure diagram of evaporator 30 provided by the utility model, and combine Fig. 2, it is seen that described
Evaporator 30 is both provided with conduction oil interlayer 120 outside the tank body with leaching settling tank 20.When liquid suction pipe 23 will by diaphragm pump 80
After the mixing clear liquid of silicon carbide micro-powder precipitation top is detached into evaporator 30, leading in the conduction oil interlayer 120 of evaporator 30
Deep fat oil temperature will rise, and detect by devices such as combination temperature sensors and keep the temperature in evaporator 30 reach leaching it is molten
More than the boiling point of agent so that leaching solvent is evaporated in condensing tower 40, passes through the condensation of cooling water in condensing tower 40 so that
Leaching solvent in condensing tower 40 is condensed and recycled in solvent tank 50.
Preferably, the bottom of the leaching settling tank 20 and evaporator 30 is both provided with blow-off valve 110.When evaporator 30 will
After mixing the leaching solvent evaporating completely in clear liquid, the valve of the blow-off valve 110 of 30 bottom of evaporator will be opened, evaporator 30
Interior remaining mineral oil is pumped to 60 memory storage of crude oil tank by blow-off valve 110, and by diaphragm pump 80, in order to the two of mineral oil
Secondary use.
Meanwhile after the mixing clear liquid for leaching the precipitation of the silicon carbide micro-powder in settling tank 20 top detaches, it is heavy to leach
Conduction oil oil temperature in the conduction oil interlayer 120 of shallow lake tank 20 will rise, and detect and protect by devices such as combination temperature sensors
Hold the temperature leached in settling tank 20 to reach more than the boiling point of leaching solvent so that leaching solvent is evaporated in condensing tower 40, is led to
Cross the condensation of cooling water in condensing tower 40 so that the leaching solvent in condensing tower 40 is condensed and recycled in solvent tank 50,
And leaching settling tank 20 can also accelerate the evaporation rate of leaching solvent by opening the stirring of 21 blender 22 of stirring motor.
After the leaching solvent evaporating completely in settling tank 20 is leached, the valve of the blow-off valve 110 of 20 bottom of settling tank is leached
Goalkeeper can open, and leaching remaining silicon carbide micro-powder in settling tank 20 will be discharged by blow-off valve 110.It is also, heavy leaching
Be provided with the air transport for the silicon carbide micro-powder after separating being delivered in storage sand bucket 70 between shallow lake tank 20 and storage sand bucket 70
Machine 90.The valve of Raft material valves is closed after the completion of silicon carbide micro-powder conveying, the silicon carbide micro-powder stored up at this time in sand bucket 70 can be transported to
Follow-up grading processing is carried out in designated equipment.
Preferably, the separation and recovery system of the silicon carbide micro-powder waste material further includes breather valve 100, it is described to leach precipitation
Tank 20, evaporator 30, solvent tank 50, crude oil tank 60 are connected with breather valve 100.By breather valve 100, the leaching settling tank
20th, the draught head of the air pressure in the tank body of evaporator 30, solvent tank 50, crude oil tank 60 and ambient pressure will remain in permissible value model
In enclosing, ensure the security of separation and recovery system entirety during separation and recovery.
In order to be better understood from the utility model, below in conjunction with Fig. 1~Fig. 3 to silicon carbide micro-powder provided by the utility model
The specific separating technology flow of the separation and recovery system of waste material is described in detail:
First, by silicon carbide micro-powder and mineral oil according to 6:4 ratio is put into mixing tank 10 and is mixed and stirred for, and formation can
The separation raw material of pumping;
Secondly, raw material quantitative will be separated by diaphragm pump 80 send to leaching in settling tank 20 and reach and leach settling tank 20
Stop feeding after 1/3 volume, and leaching solvent (dichloromethane CH2CI2) is leached into settling tank 20 by being pumped in solvent tank 50
2/3 volume after stop feeding;
At this moment, stirring motor 21 starts to work and by making blender 22 carry out Stirring so that mineral oil and dichloro
Methane is sufficiently mixed.Stirring motor 21 is stopped and stands mixed 1 hour of liquid after mixing, due to dichloromethane with
The mixing of mineral oil so that viscosity and the suspending power drop of mineral oil are weak, so that silicon carbide micro-powder rapid precipitation is heavy in leaching
The bottom of shallow lake tank 20;
After the completion of carborundum precipitation, the mixing of silicon carbide micro-powder precipitation top in settling tank 20 will be leached by liquid suction pipe 23
Clear liquid is detached and is pumped in evaporator 30;
After the completion of detaching step, new dichloromethane solvent is pumped into again by solvent tank 50, and repeat above-mentioned stirring and pumping
From step.After circulation 5 times, the oil content of silicon carbide micro-powder is up to 0.01%;
After the completion of circulation step, the tank body temperature for leaching settling tank 20 is heated to by dichloro by conduction oil interlayer 120
40C ° of the boiling point of methane, makes dichloromethane be evaporated in condensing tower 40 and be condensed and recycled in solvent tank 50, heating process
In at the same time pass through stirring motor 21 drive blender 22 stirring accelerate evaporation;
After dichloromethane evaporates in leaching settling tank 20, silicon carbide micro-powder becomes flowable dry powder, beats at this time
The valve for the blow-off valve 110 for leaching 20 bottom of settling tank is opened, silicon carbide micro-powder is delivered to by storage sand bucket 70 by pneumatic conveyor
Storage, valve is closed after the completion of conveying;
Meanwhile the boiling point that the tank body temperature of evaporator 30 will be heated up to dichloromethane by conduction oil interlayer 120
40C ° and keep, the dichloromethane in the mixed liquor in evaporator 30 is evaporated in condensing tower 40 and condensed, and be recovered to
In solvent tank 50;
After the dichloromethane in evaporator 30,110 valve of blow-off valve of the bottom of evaporator 30 is opened, will be evaporated
Remaining mineral oil is pumped to crude oil tank 60 and stores in tank 30, and valve is closed after the completion of conveying, completes first separation removal process.
It is emphasized that all of above step uses what achievable PLC man-machine interfaces automatically controlled in the present embodiment
PLC control devices are controlled, because the control process of PLC control devices is that those skilled in the art can be by its professional domain
Knowledge is easy to implement, and and therefore not to repeat here.
Therefore, the separation and recovery system of a kind of silicon carbide micro-powder waste material provided by the utility model, including mixing tank, precipitation
Tank, evaporator, condensing tower, solvent tank, crude oil tank and storage sand bucket, are separated by mixing tank hybrid silicon carbide micro mist and mineral oil
Raw material is simultaneously sent into leaching settling tank, and the leaching solvent in solvent tank is sent into settling tank and is mixed with separating raw material, in carbon
After SiClx micro mist precipitation, the mixing clear liquid for leaching silicon carbide micro-powder precipitation top in settling tank is detached and is pumped to evaporator
In, by evaporator solvent, then steam is inputted solvent tank storage solvent after being condensed into condensing tower;Solvent in evaporator
After being evaporated, remaining mineral oil input crude oil tank storage;Leach settling tank in silicon carbide micro-powder precipitate completely separation after it is defeated
Enter to store up in sand bucket and store.The utility model does silicon carbide micro-powder and mineral oil by using the technique repeatedly leached under normal pressure
To being completely separated, and accomplish the recycling of solvent and realize zero-emission in production process, it is easy to avoid conventional solvent
Combustion, explosive danger, while reduce pollution of the pickling alkali washing process to environment.
It is understood that for those of ordinary skills, can with technical solution according to the present utility model and
The design of its utility model is subject to equivalent substitution or change, and all these changes or replacement should all belong to appended by the utility model
Scope of the claims.
Claims (10)
- A kind of 1. separation and recovery system of silicon carbide micro-powder waste material, it is characterised in that including:For hybrid silicon carbide micro mist and mineral oil, the pumpable mixing tank for separating raw material is made;For adding leaching solvent and hybrid separation raw material, the leaching settling tank for precipitating silicon carbide micro-powder;For heating the mixed liquor containing mineral oil and leaching solvent, the evaporator for evaporating leaching solvent;For the steam of leaching solvent to be condensed into the condensing tower of liquid;For storing the solvent tank of leaching solvent;For storing the crude oil tank of the mineral oil after separating;For storing the storage sand bucket of the silicon carbide micro-powder after separating;The mixing tank connect with leaching settling tank, the leaching settling tank also respectively with evaporator, solvent tank, store up sand bucket and cold Solidifying tower connection, the evaporator are also connected with condensing tower and crude oil tank respectively, and the condensing tower is also connected with solvent tank.
- 2. the separation and recovery system of silicon carbide micro-powder waste material according to claim 1, it is characterised in that described to leach precipitation For separation raw material volume to leach 1/3rd of the volume of settling tank, the volume of the leaching solvent is to leach settling tank in tank / 3rd of volume.
- 3. the separation and recovery system of silicon carbide micro-powder waste material according to claim 1 or 2, it is characterised in that the leaching Be provided with the liquid suction pipe connected with evaporator in settling tank, the mouth of pipe of the liquid suction pipe be arranged at the height of evaporator three/ At one.
- 4. the separation and recovery system of silicon carbide micro-powder waste material according to claim 1, it is characterised in that described to leach precipitation Blender is provided with tank, leaches and stirring motor is provided with the top of settling tank, the shaft of the blender and stirring motor connects Connect.
- 5. the separation and recovery system of silicon carbide micro-powder waste material according to claim 1, it is characterised in that the mixing tank with Leach between settling tank, between the leaching settling tank and evaporator, it is between the evaporator and crude oil tank, and/or described molten Diaphragm pump is both provided between agent tank and mixing tank.
- 6. the separation and recovery system of silicon carbide micro-powder waste material according to claim 1, it is characterised in that described to leach precipitation The bottom of tank and evaporator is both provided with blow-off valve.
- 7. the separation and recovery system of silicon carbide micro-powder waste material according to claim 1, it is characterised in that described to leach precipitation Be provided with the air float conveyer for the silicon carbide micro-powder after separating being delivered in storage sand bucket between tank and storage sand bucket.
- 8. the separation and recovery system of silicon carbide micro-powder waste material according to claim 1, it is characterised in that further include breathing Valve, the leaching settling tank, evaporator, solvent tank, crude oil tank are connected with breather valve.
- 9. the separation and recovery system of silicon carbide micro-powder waste material according to claim 1, it is characterised in that the leaching solvent For dichloromethane.
- 10. the separation and recovery system of silicon carbide micro-powder waste material according to claim 1, it is characterised in that the evaporator Conduction oil interlayer is both provided with outside tank body with leaching settling tank.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107934968A (en) * | 2017-07-31 | 2018-04-20 | 河源市宏华贸易有限公司 | The separation and recovery system and separation and recovery method of silicon carbide micro-powder waste material |
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2017
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107934968A (en) * | 2017-07-31 | 2018-04-20 | 河源市宏华贸易有限公司 | The separation and recovery system and separation and recovery method of silicon carbide micro-powder waste material |
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