CN109423319A - Stainless-steel grinding oily waste residue cleans recycling treatment equipment - Google Patents
Stainless-steel grinding oily waste residue cleans recycling treatment equipment Download PDFInfo
- Publication number
- CN109423319A CN109423319A CN201710720023.3A CN201710720023A CN109423319A CN 109423319 A CN109423319 A CN 109423319A CN 201710720023 A CN201710720023 A CN 201710720023A CN 109423319 A CN109423319 A CN 109423319A
- Authority
- CN
- China
- Prior art keywords
- oil
- solenoid valve
- tank
- pulverizer
- vacuum distillation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/02—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by distillation
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1003—Waste materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses stainless-steel grinding oily waste residues to clean recycling treatment equipment, including charging system, tank is evaporated in vacuo, vacuumizes condenser system, air accumulator, wherein, charging system is a broken fibrous blob of slag will to be needed to crush with pulverizer, and material is transported in vacuum distillation tank by lifting equipment；Oily waste residue is heated to the temperature for evaporating oil under vacuum by vacuum distillation tank, and keeps this temperature up to all evaporations of the oil in waste residue；The oil that condenser system is condensed into the oil vapour being evaporated in vacuum distillation tank liquid is vacuumized, and the fluid oil condensed out is stored in fuel reserve tank；Air accumulator store a part cannot liquefied fuel gas direct it out after gathering a certain amount and need the place of fuel as fuel.The present invention can recycle the oil in waste oil residue and recycle with metallic state powder, and have no effect to environment, and processing speed is fast, and occupied area is small, at low cost, there is high production processing capacity.
Description
Technical field
The present invention relates to stainless steel process fields more particularly to stainless-steel grinding oily waste residue to clean recycling treatment
Equipment is suitable for stainless-steel grinding, waste processing, oily waste residue, solid-liquor separation, vacuum distillation.
Background technique
High-quality stainless steel strip in process of production, in order to obtain high-quality surface quality, frequently with figuring of surface unit
Its surface is ground, to remove the oxidation tint on surface, the defects of scratch, eliminates surface chromatic aberration.Figuring of surface is high
One important procedure of quality stainless steel strip production.The strip and sand that reconditioning unit passes through the cooling reconditioning region of spray grinding oil
Band, playing the role of cooling prevents belt steel surface secondary oxidation, while the lemel band that the grinding oil sprayed into will be ground
From abrasive areas.Contain a large amount of lemel from the grinding oil that reconditioning unit is discharged, after filtering separate oil with fine powder,
Grinding oil, which returns, to be recycled, and fine powder becomes slag mud, and fine powder is pressed into pie using filter press, squeezes out the major part in slag mud
Remaining grinding oil.A blob of slag after pressure still suffers from 8~10% grinding oil, becomes " dangerous waste ".According to environmental requirement, it is this not
" dangerous waste " by deoiling treatment is the outward transport that cannot dispatch from the factory.This will directly influence high-quality stainless steel strip production process, at
For a restrictive factor of its production.It develops to the method and equipment of this cleaning treatment containing oil cake to high-quality
Stainless steel strip production has very important significance.
There are three features for the tool of mud containing the dregs of fat: (1) oil content is high, if it is possible to separation is cleaned, it can Returning utilization；(2)
Metal powder content in waste residue is high, and it is the high-quality raw material of stainless steel production, and all with gold that ingredient, which is mainly iron, nickel, chromium,
Belong to state rather than the presence of common oxidation state；(3) containing the fiberous material to get off is ground from abrasive band on a small quantity in waste residue, so that a blob of slag
It is very high in axial toughness, come to crushed zone difficult.
What is be currently known has the processing method of oily waste residue: burning, biodegrade, Chemical Decomposition, extraction and separation, alkalinity
Washing etc., but grinding blob of slag processing is difficult to accomplish to have no effect to environment with these methods and the object that can make that treated
Expect that recycling recycles.Such as Chemical Decomposition, extraction and separation, alkaline washing, these methods are all first to be transferred to the oil in waste residue
In a kind of special chemical solvent, oil is separated from slag using the particular physico-chemical characteristics of special chemical solvent, then again
Oil is separated with solvent, the regenerative process of subsequent solvent can produce bigger effect environment；And it is biodegradable, it needs suitable
Under conditions of temperature and humidity, slowly the oil in waste residue is taken off by microorganism, it is therefore desirable to biggish place, speed compared with
Slowly, and by environmental influence；Dioxin and volume of smoke can be generated with incineration method processing slag mud, the oil in waste residue can not also return
It receives and utilizes, and the various metallic state elements in waste residue will be oxidized, and increase the difficulty of later use.Therefore, one kind is developed not
Need subsequent processing, quickly, occupied area it is small, not to environmental effects, and can recycle in waste residue oil and metallic element carry out
The method and apparatus of re-using is very necessary and useful.
Summary of the invention
In view of the above technical problems, the purpose of the present invention is to provide stainless-steel grinding oily waste residues to clean recycling treatment
Equipment.
To achieve the above object, the present invention is realized according to following technical scheme:
Stainless-steel grinding oily waste residue clean recycling treatment equipment, including charging system, be evaporated in vacuo tank, vacuumize it is cold
Solidifying system, air accumulator, wherein the charging system is a broken fibre-bearing blob of slag will to be needed to crush with pulverizer, and pass through
Material is transported in vacuum distillation tank by heavy equipment；The vacuum distillation tank is heated to oily waste residue to make oil evaporation under vacuum
Temperature, and this temperature is kept until the oil in waste residue all evaporates；The condenser system that vacuumizes in vacuum distillation tank steaming
The oil vapour issued is condensed into the oil of liquid, and the fluid oil condensed out is stored in fuel reserve tank；The air accumulator is deposited
Storage a part cannot liquefied fuel gas direct it out after gathering a certain amount and need the place of fuel as fuel.
In above-mentioned technical proposal, the charging system includes storage bin, oscillating feeder, pulverizer, receiving hopper, will need to locate
A blob of slag for reason is put into the storage bin, and the oscillating feeder controls delivery rate, by a blob of slag according to a certain amount and sequence
The pulverizer is added, the pulverizer smashes a blob of slag, and the dregs of fat by crushing enter in the receiving hopper.
In above-mentioned technical proposal, the pulverizer is fixed including crushing cover, rotor, pulverizer entrance, carry-over bar, first
Rack gear, wear-resistant liner, crusher housing, pulverizer outlet, the second stationary rack, motor, spring bearing and bracket；
It is controlled by the oscillating feeder and the flow of pulverizer is added and enters a waste oil blob of slag into pulverizer in order
Mouthful, after a waste oil blob of slag enters pulverizer from pulverizer entrance, the carry-over bar being fixed on rotor is torn, the dregs of fat being torn by
Carry-over bar drives and is mounted on the first stationary rack that pulverizer covers and meets, in the effect of carry-over bar and the first stationary rack
Under, crush the dregs of fat further, the gap between carry-over bar and stationary rack determines the pulverized degree of the dregs of fat, to logical
After crossing the first stationary rack, the smashed dregs of fat fall into pulverizer outlet under the action of gravity and centrifugal force, pass through pulverizer
It is sticked to behind outlet on rotor and intercepts the second stationary rack being installed on crusher housing still without the dregs of fat of disengaging, rotor
It is driven by motor, rotor is supported by the spring bearing at both ends, is equipped with wear-resistant liner on crushing cover and crusher housing, whole
A pulverizer is supported by bracket, and the waste oil residue by crushing is entered in receiving hopper by pulverizer outlet.
In above-mentioned technical proposal, the vacuum distillation tank include the tank body of upper opening, the head for being provided with feed opening,
Feed opening sealing-plug, feed opening, disengaging tracheae, blender, blender heater, tank base heater, stirrer-driven electricity
Machine, hollow shaft, thrust bearing, collector, partiting thermal insulation material, conducting wire, sealing storage tank, goes out two blender spring bearings
Material mouth, exit seal plug, outlet slide valve, blowpit, temperature thermocouple and blowpit heater；
Feed opening sealing-plug is opened, outlet slide valve is closed, loads onto discharge port sealing-plug, start stirrer-driven motor,
Blender rotation is driven, rotation direction is determined by the inclined direction of the blade of blender, true by being added by the waste oil residue crushed
In empty alembic, the bottom of vacuum distillation tank is then uniformly distributed in by blender, material level, which reaches, in vacuum distillation tank sets
Stop charging when positioning is set, set up feed opening sealing-plug, completes charging process.
In above-mentioned technical proposal, the condenser system that vacuumizes includes the first solenoid valve, filter, condenser, the second electricity
Magnet valve, third solenoid valve, the 4th solenoid valve, Distallation systm vacuum pump, fuel reserve tank steam the oil being evaporated in vacuum distillation tank
Vapour is condensed into the oil of liquid, and the fluid oil condensed out is stored in fuel reserve tank；
Start distillation process after completing charging process, be first shut off the first solenoid valve and the 4th solenoid valve, opens third
Solenoid valve starts Distallation systm vacuum pump, and second solenoid valve is opened, and vacuumize for the first time, the oxygen in system is logical
It is outdoor to cross the discharge of emptying pipeline, closes second solenoid valve after certain vacuum degree to be achieved, closing Distallation systm vacuum pump, first
It is secondary to vacuumize end；The first solenoid valve is opened, by nitrogen pipeline to system inflated with nitrogen, closes first after system is full of nitrogen
Solenoid valve, second of starting Distallation systm vacuum pump, second solenoid valve is opened, is vacuumized for the second time, is being evaporated in vacuo
Tank reaches certain vacuum when spending, and closes second solenoid valve and third solenoid valve, closes Distallation systm vacuum pump, vacuumizes for the second time
Terminate；Vacuum distillation tank is heated simultaneously, heating speed and heating temperature need to control, in case the oil in the dregs of fat has little time to steam
It sends out and is carbonized；Heating be by the way that the tank bottom heater of tank base is evaporated in vacuo, the blender heater in mixing arm and
What the blowpit heater in blowpit was realized, tank bottom heater and blowpit heater directly connect to power supply, and blender adds
Hot device need to be connected to power supply by collector；
Blender is mounted on vacuum distillation tank body by the hollow shaft that two bearings and a thrust bearing support by one
Bottom, collector is located at one end of hollow shaft, and the effect of collector is to guide to electric current from static vacuum distillation tank body
In the hollow shaft of the blender of rotation, the conducting wire for connecting collector and agitating and heating device is passed through out of blender hollow shaft, hollow
Partiting thermal insulation material is placed in axis, the effect of partiting thermal insulation material is fixed conducting wire, and conducting wire and hollow shaft are kept apart, and is risen simultaneously
Sealing function；The calorific value of heater according to vacuum distillation tank base temperature be adjusted, control heating speed, avoid because
Heating temperature is too high to make oil have little time to evaporate and be carbonized, and with the temperature of the thermocouple measurement dregs of fat, the steaming of oil is reached to dregs of fat temperature
Terminate the heating period when sending out temperature, into holding stage；Pressure and dregs of fat temperature in monitoring vacuum distillation tank during heating
The variation of degree starts Distallation systm vacuum pump when pressure inside the tank is close to normal pressure, opens second solenoid valve and the 4th solenoid valve, will
The steam sucking condenser distilled in vacuum distillation tank, in condenser, steam carries out heat with condensed water and exchanges, and can coagulate
Gas becomes liquid, and non-condensable gas is discharged from system, is sent into air accumulator, and the second electricity is closed when system pressure is close to vacuum
Magnet valve and the 4th solenoid valve close Distallation systm vacuum pump；
The high temperature oil vapour evaporated in vacuum distillation tank enters filter by pipeline, removes the solid in oil vapour
Enter condenser after hybrid matter, the condensable gas after supercooling in steam is converted into liquid and enters fuel reserve tank below condenser
Interior, non-condensable gas will make the pressure rise of system, just need to start Distallation systm when system pressure is increased to certain pressure
Vacuum pump opens second solenoid valve and the 4th solenoid valve, non-condensable gas is discharged from system, air accumulator is sent into, to system
Second solenoid valve and the 4th solenoid valve are closed when pressure is close to vacuum, close Distallation systm vacuum pump.
Compared with prior art, the present invention having the following beneficial effects:
The present invention can recycle the oil in waste oil residue and recycle with metal powder, and have no effect to environment, locate
Reason speed is fast, and occupied area is small, at low cost, there is high production processing capacity.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the schematic diagram that stainless-steel grinding oily waste residue of the invention cleans recycling treatment equipment；
Fig. 2 (a) and Fig. 2 (b) is pulverizer different cross section cross-sectional view of the invention；
Fig. 3 (a) is the main view of vacuum distillation tank of the invention；
Fig. 3 (b) is the partial enlargement diagram of vacuum distillation tank of the invention；
Fig. 3 (c) is the top view of vacuum distillation tank of the invention；
Fig. 3 (d) is the partial enlargement diagram of vacuum distillation tank of the invention；
Fig. 4 is the schematic diagram of the head of vacuum distillation tank of the invention by blender mounted in top.
Wherein, 1: storage bin, 2: oscillating feeder, 3: pulverizer, 4: vacuum distillation tank, 5: the first solenoid valves, 6: filtering
Device, 7: condenser, 8: second solenoid valve, 9: air accumulator, 10: third solenoid valve, 11: the four solenoid valves, 12: Distallation systm vacuum
Pump, 13: fuel reserve tank, 14: sealing storage tank, 15: receiving hopper, 16: 3-1: a waste oil blob of slag crushes cover, 3-2: rotor, 3-3: powder
Broken machine entrance, 3-4: carry-over bar, the 3-5: the first stationary rack, 3-6: wear-resistant liner, 3-7: crusher housing, 3-8: pulverizer goes out
Mouthful, the 3-9: the second stationary rack, 3-10: motor, 3-11: spring bearing, 3-12: bracket, 4-1: tank body, 4-2: head,
4-3: sealing-plug, 4-4: feed opening, 4-5: disengaging tracheae, 4-6: blender, 4-7 blender heater, 4-8: tank base adds
Hot device, 4-9: stirrer-driven motor, 4-10: blender spring bearing, 4-11: hollow shaft, 4-12: thrust bearing, 4-13: collection
Device is flowed, 4-14: partiting thermal insulation material, 4-15: conducting wire, 4-16: discharge port, 4-17: exit seal plug, 4-18: outlet slide valve,
4-19: blowpit, 4-20: temperature thermocouple, 4-21: blowpit heater.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.
Need to solve 3 difficult points using vacuum distillation method processing stainless-steel grinding oily waste residue: (1) broken containing oil cake
It is broken；(2) oil separated wants pure pollution-free；(3) bits after separating can very easily take out from separating still.Point
Oil and slag from after are all valuable resources, and the oil of recycling can be used as the raw material of steel-making with reuse, slag.
The present invention will contain oil cake using the broken equipment of a blob of slag of designed, designed and be broken into fine granularity, contain smashed
Dregs of fat mud is placed in vacuum distillation tank, vacuumizes heating to vacuum distillation tank, so that the oil in waste residue is quick under vacuum conditions
Evaporation is condensed into condenser, becomes clean oily Returning utilization, treated, and oil-free bits pass through dedicated unit from vacuum kettle
In quickly remove.The uncooled a small amount of residual exhaust gases got off, which are collected, burns as fuel for stove.Whole process is not right
Environment generates any influence.
Fig. 1 is the schematic diagram that stainless-steel grinding oily waste residue of the invention cleans recycling treatment equipment；As shown in Figure 1,
Stainless-steel grinding oily waste residue of the invention cleans recycling treatment equipment, including charging system, be evaporated in vacuo tank, vacuumize it is cold
Solidifying system, air accumulator, wherein the charging system is to be crushed a fibre-bearing blob of slag to be treated with pulverizer, and pass through
Material is transported in vacuum distillation tank by heavy equipment；The vacuum distillation tank is heated to oily waste residue to make oil evaporation under vacuum
Temperature, and this temperature is kept until the oil in waste residue all evaporates；The condenser system that vacuumizes in vacuum distillation tank steaming
The oil vapour issued is condensed into the oil of liquid, and the fluid oil condensed out is stored in fuel reserve tank；The air accumulator is deposited
Storage a part cannot liquefied fuel gas direct it out after gathering a certain amount and need the place of fuel as fuel.
Charging system is as shown in Figure 1, include storage bin 1, oscillating feeder 2, pulverizer 3, receiving hopper 15, by what need to be handled
A blob of slag is put into the storage bin 1, and the oscillating feeder 2 controls delivery rate, and a blob of slag is added according to a certain amount and sequence
Enter the pulverizer 3, the pulverizer 3 smashes a blob of slag, and the dregs of fat by crushing enter in the receiving hopper 15, then by lifting
Material is transported to vacuum distillation tank 4 by equipment.In process of production, in order to reduce the oil content of waste residue, usually waste oil residue is carried out
Filters pressing processing, reduces the oil content of waste residue, forms a blob of slag, the slag due to containing certain fibre composition in waste oil residue, after filters pressing
Cake is harder, and has certain toughness.For the ease of distillation and subsequent processing, break process need to be carried out to a blob of slag.It crushes
The structure of machine 3 is shown in Fig. 2 (a) and Fig. 2 (b), by crushing cover 3-1, rotor 3-2, pulverizer entrance 3-3, carry-over bar 3-4, and first
Stationary rack 3-5, wear-resistant liner 3-6, crusher housing 3-7, pulverizer export 3-8, the second stationary rack 3-9, motor 3-10,
Spring bearing 3-11 and bracket 3-12.
Specifically, due to the specific physical of waste oil residue, special pulverizer powder need to charging process of the invention: be used
It is broken.It is controlled by the oscillating feeder 2 and the flow of pulverizer 3 is added and a waste oil blob of slag 16 is made to enter pulverizer entrance in order
3-3, after a waste oil blob of slag enters pulverizer from pulverizer entrance 3-3, the carry-over bar 3-4 being fixed on rotor 3-2 is torn, and is torn
The dregs of fat split are driven by carry-over bar 3-4 and are met with the first stationary rack 3-5 being mounted on crushing cover 3-1, in carry-over bar 3-4
Under the action of the first stationary rack 3-5, crush the dregs of fat further, between carry-over bar 3-4 and stationary rack 3-5
Gap determines the pulverized degree of the dregs of fat, and after through the first stationary rack 3-5, the smashed dregs of fat are in gravity and centrifugal force
Pulverizer outlet 3-8 is fallen under effect, exports that be sticked on rotor 3-2 after 3-8 will be by still without the dregs of fat of disengaging by pulverizer
The second stationary rack 3-9 on crusher housing 3-7 is mounted on to intercept, rotor is driven by motor 3-10, rotor by both ends branch
Bearing 3-11 support is supportted, wear-resistant liner 3-6 is installed on crushing cover 3-1 and crusher housing 3-7, entire pulverizer is by propping up
Frame 3-12 support, the waste oil residue by crushing export 3-8 by pulverizer and enter in receiving hopper 15.
It is a high temperature resistant that tank, which is evaporated in vacuo, seals the tank body that can be vacuumized, and the outside of tank body is such as schemed added with insulating layer
Shown in 3 (a) -3 (d), vacuum distillation tank include the tank body of upper opening, the head for being provided with feed opening, feed opening sealing-plug,
Feed opening, disengaging tracheae, blender, blender heater, tank base heater, stirrer-driven motor, two blenders
Spring bearing, hollow shaft, thrust bearing, collector, partiting thermal insulation material, conducting wire, sealing storage tank, discharge port, exit seal
Plug, outlet slide valve, blowpit, temperature thermocouple and blowpit heater；
Vacuum distillation tank includes the tank body 4-1 of upper opening, is provided with the head 4-2 of feed opening, feed opening sealing-plug
4-3, feed opening 4-4 pass in and out tracheae 4-5, blender 4-6, blender heater 4-7, tank base heater 4-8, blender
Driving motor 4-9, two blenders spring bearing 4-10, hollow shaft 4-11, thrust bearing 4-12, collector 4-13, it is heat-insulated absolutely
Edge material 4-14, conducting wire 4-15, discharge port 4-16, exit seal plug 4-17 export slide valve 4-18, blowpit 4-19, thermometric
Thermocouple 4-20 and blowpit heater 4-21；In addition, each movable contact surface has sealing element, exposed surface is added with guarantor
Warm layer.The function that tank is evaporated in vacuo is that logistics is facilitated to load and unload, and oily waste residue is heated to the temperature for evaporating oil under vacuum, and
It keeps this temperature until the oil in waste residue all evaporation, while preventing the member in the oil carbon and the dregs of fat in waste residue again
Plain state metal oxidation.It can also be by blender 4-6 on the head 4-2 at top, such as Fig. 4 institute for vacuum distillation tank
Show.
The preparation with condenser system is vacuumized while crushing the dregs of fat, opens feed opening sealing-plug 4-3, is closed
Outlet slide valve 4-18 is closed, discharge port sealing-plug 4-17 is loaded onto, starts stirrer-driven motor 4-9, driving blender 4-6 is by figure
Show that direction rotates, rotation direction is determined by the direction of mixing arm, transports to vacuum by lifting equipment after receiving hopper 15 is filled
The feed opening 4-4 of alembic 4 will be added in vacuum distillation tank 4 by the waste oil residue crushed, then uniformly be divided by blender 4-6
It is distributed in the bottom of vacuum distillation tank 4, stops charging when material level in tank 4 is evaporated in vacuo and reaches setting position, removes receiving hopper
15, feed opening sealing-plug 4-3 is set up, charging process is completed.Why start blender before charging, is to reduce blender
The resistance of start of 4-6 prevents from being stuck.
Vacuumizing condenser system includes the first solenoid valve 5, filter 6, condenser 7, second solenoid valve 8, third solenoid valve
10, the 4th solenoid valve 11, Distallation systm vacuum pump 12, fuel reserve tank 13 condense the oil vapour being evaporated in vacuum distillation tank
For the oil of liquid, and the fluid oil condensed out is stored in fuel reserve tank；
The function of air accumulator 9 be during distillation, due to splitting action will form a part cannot be liquefied flammable
Gas if it, which is directly burnt, to generate pollution to environment, therefore is stored in air accumulator 9, certain wait gather
After amount, directs it out and need the place of fuel as fuel.
Specifically, it distillation and condensation process of the invention: after completing charging process, into distillation and condensation process, steams
It evaporates and is divided into following steps again with condensation process:
A, prepare before distillation: being first shut off the first solenoid valve 5 (cutting nitrogen pipeline) and 11 (the cutting entrance of the 4th solenoid valve
The pipeline of air accumulator 9), third solenoid valve 10 is opened, starts Distallation systm vacuum pump 12, and second solenoid valve 8 is opened, is carried out
It vacuumizes for the first time, the oxygen in system is outdoor by emptying pipeline discharge, by second solenoid valve 8 after certain vacuum degree to be achieved
It closes, closes Distallation systm vacuum pump 12, vacuumize end for the first time；The first solenoid valve 5 is opened, by nitrogen pipeline to system
Inflated with nitrogen closes the first solenoid valve 5 after system is full of nitrogen, second of starting Distallation systm vacuum pump 12, by the second electromagnetism
Valve 8 is opened, and is vacuumized for the second time, when vacuum distillation tank reaches certain vacuum and spends, closes second solenoid valve 8 and third electricity
Magnet valve 10 closes Distallation systm vacuum pump 12, vacuumizes end for the second time；Prepare to terminate before distillation.
B, heating distillation: heating vacuum distillation tank 4 while vacuumizing for the second time, heating speed and heating temperature
Degree needs to control, in case the oil in the dregs of fat has little time to evaporate and be carbonized；Heating is added by the way that the tank bottom of the bottom tank body 4-1 is evaporated in vacuo
Blowpit heater 4-21 in blender heater 4-8 and blowpit 4-19 in hot device 4-7, blender leaf 4-6 piece is realized
, tank bottom heater 4-7 and blowpit heater 4-21 are directly connected to power supply, and blender heater 4-8 need to pass through collector
4-13 is connected to power supply.Since material heats under vacuum conditions, heat exchange mode mainly by conduction, heating object with
The size of heat source-contacting surface product determines the speed of heating, therefore increases blender heater 4-7 and mainly increase heating surface (area) (HS.
Blender 4-6 is pacified by a hollow shaft 4-11 by two ball bearing 4-10 and a thrust bearing 4-12 support
Mounted in the bottom of vacuum distillation tank body 4-1, collector 4-13 is located at one end of hollow shaft 4-11, the effect of collector 4-13 be by
In the hollow shaft 4-11 for the blender 4-6 that electric current guides to rotation from static vacuum distillation tank body 4-1, collector 4-13 is connected
It is passed through out of blender hollow shaft 4-11 with the conducting wire of agitating and heating device 4-7, partiting thermal insulation material 4- is placed in hollow shaft 4-11
14, the effect of partiting thermal insulation material 4-14 is fixed conducting wire 4-15, and conducting wire 4-15 and hollow shaft 4-11 are kept apart, while being risen close
Envelope effect；The calorific value of heater is adjusted according to the temperature of the vacuum distillation bottom tank body 4-1, controls heating speed, avoids
So that oil is carbonized due to having little time evaporation because heating temperature is too high, the temperature of the dregs of fat is measured with thermocouple 4-20, is reached to dregs of fat temperature
Terminate the heating period when evaporating temperature of oil, into holding stage；The change of pressure and dregs of fat temperature in monitoring vacuum distillation tank 4
Change, start Distallation systm vacuum pump 12 when pressure inside the tank is close to normal pressure, opens second solenoid valve 8 and the 4th solenoid valve 11, it will
The steam sucking condenser 7 distilled in vacuum distillation tank 4, in condenser 7, steam carries out heat with condensed water and exchanges,
Condensable gas becomes liquid, and non-condensable gas is discharged from system, is sent into air accumulator 9, closes when system pressure is close to vacuum
Second solenoid valve 8 and the 4th solenoid valve 11 close Distallation systm vacuum pump 12；During vacuumizing, due to oily in the dregs of fat
Evaporation rate accelerate, cause the temperature of the dregs of fat to reduce, variation of the monitoring dregs of fat temperature in vacuum, so that it may know
The variation of its oil content.In this way circulation repeatedly, until when vacuumizing the temperature of the dregs of fat no longer reduce, illustrate in the dregs of fat oil
Evaporation is clean, stops distillation heating；
C, condense: the high temperature oil vapour evaporated in vacuum distillation tank 4 enters filter 6 by pipeline, steams except deoiling
Enter condenser 7 after solid impurity in vapour, the condensable gas after supercooling in steam is converted into liquid and enters under condenser 7
In the fuel reserve tank 15 of side, non-condensable gas will make the pressure rise of system, just need when system pressure is increased to certain pressure
Start Distallation systm vacuum pump 12, open second solenoid valve 8 and the 4th solenoid valve 11, non-condensable gas is discharged from system,
It is sent into air accumulator 9, second solenoid valve 8 and the 4th solenoid valve 11 is closed when system pressure is close to vacuum, it is true to close Distallation systm
Sky pump 12.The place for needing combustion gas is directed it out when the fuel gas in air accumulator 10 reaches a certain amount.
Discharge process of the invention: during being vacuumized to system, if the variation of dregs of fat temperature is providing
In the range of, illustrate that the oil content of the dregs of fat meets the requirements, into discharging phase, system is evacuated first, closes solenoid valve
28 and solenoid valve 4 11, Distallation systm vacuum pump 12 is closed, then opens solenoid valve 1 to system inflated with nitrogen, the mesh of inflated with nitrogen
Be that remaining oil vapour in tank is evaporated in vacuo in order to prevent to meet oxygen after-combustion and the metal component in waste residue is prevented to be oxidized,
The exit seal plug 4-17 of the pressure in tank 4 with opening vacuum distillation tank 4 after extraneous balance is evaporated in vacuo, sealing storage tank 14
It connect, is then opened in outlet slide valve 4-18, blowpit 4-19 after distillation with the discharge port 4-16 of vacuum distillation tank 4
Waste residue will flow into sealing storage tank 14, and the waste residue in tank 4 is evaporated in vacuo and enters blowpit successively under the action of blender 4-6
4-19, the material in blowpit are fallen into first in sealing storage tank, distill the material of pot bottom under the action of blender successively
Into blowpit, after storage tank 14 to be sealed is filled, it is detached from vacuum distillation tank 4, and is sealed with Special sealing cover, to prevent
Oxygen enters, and makes the metallic element oxidation under the condition of high temperature, is then placed within side, allows its natural cooling, if necessary
It can also accelerate cooling with wind or water.Outlet slide valve 4-18 is closed after the completion of discharging, closing exit seal plug 4-17 enters next
Circulation.
The present invention determines to take out opening, stop and distilling for positive empty set system according to the variation of vacuum degree and temperature in vacuum distillation tank
The time that process terminates.
The distillation overall process of the dregs of fat is carried out under protective atmosphere or vacuum, one is in order to guarantee safety, secondly
It is to protect the metallic element in the dregs of fat not oxidized, the effect of sealing storage tank 14 is also just this, it can make object
Material is cooling under protective atmosphere, and does not occupy vacuum distillation tank for a long time.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims, this not shadow
Ring substantive content of the invention.In the absence of conflict, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (5)
1. stainless-steel grinding oily waste residue cleans recycling treatment equipment, which is characterized in that including charging system, vacuum distillation
Tank vacuumizes condenser system, air accumulator, wherein the charging system is will to need a broken fibrous blob of slag with pulverizer
Crush, and by lifting equipment by material transfer to vacuum distillation tank in；The vacuum distillation tank is under vacuum oily waste residue
It is heated to the temperature for evaporating oil, and keeps this temperature up to all evaporations of the oil in waste residue；It is described to vacuumize condenser system
The oil vapour being evaporated in vacuum distillation tank is condensed into the oil of liquid, and the fluid oil condensed out is stored in fuel reserve tank
It is interior；The air accumulator store a part cannot liquefied fuel gas direct it out after gathering a certain amount and need fuel
Place as fuel.
2. stainless-steel grinding oily waste residue according to claim 1 cleans recycling treatment equipment, which is characterized in that described
Charging system includes storage bin, oscillating feeder, pulverizer, receiving hopper, and the blob of slag that need to be handled is put into the storage bin, institute
It states the lower section that oscillating feeder is located at storage bin, controls delivery rate, a blob of slag is added according to a certain amount and in sequence
Enter in the pulverizer, the pulverizer smashes a blob of slag, and the dregs of fat by crushing enter in the receiving hopper.
3. stainless-steel grinding oily waste residue according to claim 2 cleans recycling treatment equipment, which is characterized in that described
Pulverizer includes crushing cover, rotor, pulverizer entrance, carry-over bar, the first stationary rack, wear-resistant liner, crusher housing, powder
Broken machine outlet, the second stationary rack, motor, spring bearing and bracket；
It is controlled by the oscillating feeder and the flow of pulverizer is added and a waste oil blob of slag is made to enter pulverizer entrance in order, given up
After oil cake enters pulverizer from pulverizer entrance, the carry-over bar being fixed on rotor is torn, and the dregs of fat being torn are by movable tooth
Item drives and is mounted on the first stationary rack that pulverizer covers and meets, and under the action of carry-over bar and the first stationary rack, makes
The dregs of fat are further crushed, and gap between carry-over bar and stationary rack determines the pulverized degree of the dregs of fat, wait pass through the
After one stationary rack, the smashed dregs of fat fall into pulverizer outlet under the action of gravity and centrifugal force, are exported by pulverizer
It is sticked on rotor and intercepts the second stationary rack being installed on crusher housing afterwards still without the dregs of fat of disengaging, rotor is by electricity
Machine driving, rotor are supported by the spring bearing at both ends, are equipped with wear-resistant liner, entire powder on crushing cover and crusher housing
Broken machine is supported by bracket, and the waste oil residue by crushing is entered in receiving hopper by pulverizer outlet.
4. stainless-steel grinding oily waste residue according to claim 1 cleans recycling treatment equipment, which is characterized in that described
Vacuum distillation tank includes the tank body of upper opening, the head for being provided with feed opening, feed opening sealing-plug, feed opening, disengaging gas
It is pipe, blender, blender heater, tank base heater, stirrer-driven motor, two blender spring bearings, hollow
Axis, thrust bearing, collector, partiting thermal insulation material, conducting wire, sealing storage tank, discharge port, exit seal plug, outlet slide valve,
Blowpit, temperature thermocouple and blowpit heater；
Feed opening sealing-plug is opened, outlet slide valve is closed, loads onto discharge port sealing-plug, starts stirrer-driven motor, driving
Blender rotation, rotation direction are determined by the inclined direction of the blade of blender, are steamed vacuum is added by the waste oil residue crushed
It evaporates in tank, the bottom of vacuum distillation tank is then uniformly distributed in by blender, material level reaches setting position in vacuum distillation tank
Stop charging when setting, set up feed opening sealing-plug, completes charging process.
5. stainless-steel grinding oily waste residue according to claim 1 cleans recycling treatment equipment, which is characterized in that described
Vacuumize condenser system include the first solenoid valve, filter, condenser, second solenoid valve, third solenoid valve, the 4th solenoid valve,
Distallation systm vacuum pump, fuel reserve tank are condensed into the oil vapour being evaporated in vacuum distillation tank the oil of liquid, and under condensation
The fluid oil come is stored in fuel reserve tank；
It is first shut off the first solenoid valve and the 4th solenoid valve, opens third solenoid valve, start Distallation systm vacuum pump, and by second
Solenoid valve is opened, and vacuumize for the first time, and the oxygen in system is outdoor by emptying pipeline discharge, certain vacuum degree to be achieved
Second solenoid valve is closed afterwards, Distallation systm vacuum pump is closed, vacuumizes end for the first time；The first solenoid valve is opened, nitrogen is passed through
Feed channel closes the first solenoid valve after system is full of nitrogen to system inflated with nitrogen, second of starting Distallation systm vacuum pump, will
Second solenoid valve is opened, and is vacuumized for the second time, when tank is evaporated in vacuo reaching certain vacuum and spending, close second solenoid valve with
Third solenoid valve closes Distallation systm vacuum pump, vacuumizes end for the second time；Vacuum distillation tank is heated simultaneously, is heated
Speed and heating temperature need to control, in case the oil in the dregs of fat has little time to evaporate and be carbonized；Heating is by the way that tank body bottom is evaporated in vacuo
What the heater in blender heater and blowpit in the tank bottom heater in portion, mixing arm was realized, tank bottom heater
It is directly connected to power supply with blowpit heater, blender heater need to be connected to power supply by collector；
Blender is mounted on the bottom of vacuum distillation tank body by one by the hollow shaft that two bearings and a thrust bearing support
In portion or top cover, collector is located at one end of hollow shaft, the effect of collector be by electric current from static vacuum distillation tank body
It guides in the hollow shaft of the blender of rotation, the conducting wire for connecting collector and agitating and heating device is passed through out of blender hollow shaft,
Partiting thermal insulation material is placed in hollow shaft, the effect of partiting thermal insulation material is fixed conducting wire, conducting wire and hollow shaft is kept apart, together
When seal；The calorific value of heater is adjusted according to the temperature of vacuum distillation tank base, controls heating speed, keeps away
Exempt to be carbonized because oil is made very much to have little time evaporation fastly for heating speed, with the temperature of the thermocouple measurement dregs of fat, reaches oil to dregs of fat temperature
Evaporating temperature when terminate the heating period, into holding stage；Pressure and oil in monitoring vacuum distillation tank during heating
The variation of slag temperature starts Distallation systm vacuum pump when pressure inside the tank is close to normal pressure, opens second solenoid valve and the 4th electromagnetism
Valve will be evaporated in vacuo the steam distilled in tank and suck condenser, and in condenser, steam and condensed water carry out heat friendship
It changes, condensable gas becomes liquid, and non-condensable gas is discharged from system, is sent into air accumulator, closes when system pressure is close to vacuum
Second solenoid valve and the 4th solenoid valve are closed, Distallation systm vacuum pump is closed；
The high temperature oil vapour evaporated in vacuum distillation tank enters filter by pipeline, removes the solid impurity in oil vapour
Enter condenser afterwards, the condensable gas after supercooling in steam is converted into liquid and enters in the fuel reserve tank below condenser, no
Condensable gas will make the pressure rise of system, just need to start Distallation systm vacuum when system pressure is increased to certain pressure
Pump opens second solenoid valve and the 4th solenoid valve, non-condensable gas is discharged from system, air accumulator is sent into, to system pressure
Second solenoid valve and the 4th solenoid valve are closed when close to vacuum, close Distallation systm vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710720023.3A CN109423319B (en) | 2017-08-21 | 2017-08-21 | Stainless steel grinding oil-containing waste residue cleaning and recycling treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710720023.3A CN109423319B (en) | 2017-08-21 | 2017-08-21 | Stainless steel grinding oil-containing waste residue cleaning and recycling treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109423319A true CN109423319A (en) | 2019-03-05 |
| CN109423319B CN109423319B (en) | 2020-12-15 |
Family
ID=65498924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710720023.3A Active CN109423319B (en) | 2017-08-21 | 2017-08-21 | Stainless steel grinding oil-containing waste residue cleaning and recycling treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109423319B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111154510A (en) * | 2020-01-22 | 2020-05-15 | 韦祖军 | Waste mineral oil treatment system and application method thereof |
| CN111570941A (en) * | 2020-05-28 | 2020-08-25 | 浙江来福智能科技有限公司 | Energy-saving environment-friendly electric spark oil residue separating and recycling machine |
| CN113289362A (en) * | 2021-05-20 | 2021-08-24 | 高密市超越应升机械科技有限公司 | Electric spark oil residue separator for tire mold |
| CN113930291A (en) * | 2021-11-05 | 2022-01-14 | 安徽天祥粮油食品有限公司 | Method and device for circularly treating beef tallow residues |
| CN115213499A (en) * | 2022-08-16 | 2022-10-21 | 江苏双环齿轮有限公司 | Grinding oil supply device of numerical control gear lapping machine and use method thereof |
| CN115401053A (en) * | 2022-08-29 | 2022-11-29 | 铜陵鼎盛环保科技有限公司 | Device system for removing oil from oily waste metal slag and oil removing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003010258A1 (en) * | 2001-07-23 | 2003-02-06 | Yuanmo Zhang | A process and an apparatus for producing gasoline and diesel oil from plastic waste and/or heavy oil |
| CN105648216A (en) * | 2016-01-12 | 2016-06-08 | 昆明理工大学 | Continuous vacuum distillation device for solid feeding and discharging and application method of device |
| CN106905991A (en) * | 2017-04-18 | 2017-06-30 | 徐思玉 | Black used oil is evaporated in vacuo system and process |
-
2017
- 2017-08-21 CN CN201710720023.3A patent/CN109423319B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003010258A1 (en) * | 2001-07-23 | 2003-02-06 | Yuanmo Zhang | A process and an apparatus for producing gasoline and diesel oil from plastic waste and/or heavy oil |
| CN105648216A (en) * | 2016-01-12 | 2016-06-08 | 昆明理工大学 | Continuous vacuum distillation device for solid feeding and discharging and application method of device |
| CN106905991A (en) * | 2017-04-18 | 2017-06-30 | 徐思玉 | Black used oil is evaporated in vacuo system and process |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111154510A (en) * | 2020-01-22 | 2020-05-15 | 韦祖军 | Waste mineral oil treatment system and application method thereof |
| CN111570941A (en) * | 2020-05-28 | 2020-08-25 | 浙江来福智能科技有限公司 | Energy-saving environment-friendly electric spark oil residue separating and recycling machine |
| CN111570941B (en) * | 2020-05-28 | 2021-02-12 | 浙江来福智能科技有限公司 | Energy-saving environment-friendly electric spark oil residue separating and recycling machine |
| CN113289362A (en) * | 2021-05-20 | 2021-08-24 | 高密市超越应升机械科技有限公司 | Electric spark oil residue separator for tire mold |
| CN113930291A (en) * | 2021-11-05 | 2022-01-14 | 安徽天祥粮油食品有限公司 | Method and device for circularly treating beef tallow residues |
| CN113930291B (en) * | 2021-11-05 | 2023-12-22 | 安徽天祥粮油食品有限公司 | Circulation treatment method and device for beef tallow residues |
| CN115213499A (en) * | 2022-08-16 | 2022-10-21 | 江苏双环齿轮有限公司 | Grinding oil supply device of numerical control gear lapping machine and use method thereof |
| CN115213499B (en) * | 2022-08-16 | 2024-03-19 | 江苏双环齿轮有限公司 | Grinding oil supply device of numerical control gear grinding machine and use method |
| CN115401053A (en) * | 2022-08-29 | 2022-11-29 | 铜陵鼎盛环保科技有限公司 | Device system for removing oil from oily waste metal slag and oil removing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109423319B (en) | 2020-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109423319A (en) | Stainless-steel grinding oily waste residue cleans recycling treatment equipment | |
| US4412889A (en) | Pyrolysis reaction apparatus | |
| CN106350230A (en) | Litsea cubeba oil distillation separation equipment and technology | |
| CN201357161Y (en) | Medical waste treatment device capable of high-temperature crushing and vaporizing sterilizing | |
| CN113717795B (en) | Novel multifunctional steam distillation-dry distillation integrated equipment | |
| CA1109326A (en) | Batch process, closed plant system for manufacturing fish meal | |
| CN109280725A (en) | Blast furnace slag waste heat recycling thermal decomposition integrated makeup is set | |
| CN107841372A (en) | Animal fat refining equipment and method | |
| CN207567192U (en) | Animal fat refining equipment | |
| CN207308560U (en) | Refuse disposal installation | |
| CN203021526U (en) | Special tea seed cake evapo-separated machine | |
| CN108753323A (en) | A kind of small movable light textile rubbish multistage locellus cracking gas burning system processed | |
| CN108018115A (en) | Animal fat refining process | |
| CN208213433U (en) | A kind of device separating lathe iron filings and oil product liquid | |
| CN113683961A (en) | Secondary extraction method and device for rosin waste | |
| CN207405145U (en) | One kind continuously evaporates wine machine | |
| JPS62187791A (en) | Method of recovering oily hydrocarbon fuel or such from plastic scrap | |
| CN108455693A (en) | A kind of industrial wastes recovery and processing system and recovery and treatment method | |
| CN2412904Y (en) | High material bed melting out machine | |
| CN107774675A (en) | Hydro-thermal process and solid-liquid separation integrated device | |
| CN207313527U (en) | A kind of automatic reallocation, automatic heating, automatic cooling and automatic negative-pressure gas gathering system | |
| CN105542809B (en) | A kind of various garbage charing process equipment peculiar to vessel and its handling process | |
| CN206476971U (en) | A kind of highly-efficient processing device of valerian oil | |
| CN108213055A (en) | A kind of machine oil filter core recycling and processing device | |
| CN103063015A (en) | Vacuum rotary kiln with mine dust return system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |