CN109331540A - A kind of extraction raffinate treatment process of freezing and filtering unit - Google Patents
A kind of extraction raffinate treatment process of freezing and filtering unit Download PDFInfo
- Publication number
- CN109331540A CN109331540A CN201810881630.2A CN201810881630A CN109331540A CN 109331540 A CN109331540 A CN 109331540A CN 201810881630 A CN201810881630 A CN 201810881630A CN 109331540 A CN109331540 A CN 109331540A
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- filtration
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- extraction raffinate
- filter
- filtering
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- 238000001914 filtration Methods 0.000 title claims abstract description 156
- 238000000605 extraction Methods 0.000 title claims abstract description 83
- 238000007710 freezing Methods 0.000 title claims abstract description 45
- 230000008014 freezing Effects 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000001839 systemic circulation Effects 0.000 claims abstract description 21
- 238000002156 mixing Methods 0.000 claims 1
- 238000003756 stirring Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 26
- 239000002689 soil Substances 0.000 description 17
- 239000007788 liquid Substances 0.000 description 11
- 238000005057 refrigeration Methods 0.000 description 8
- 239000000498 cooling water Substances 0.000 description 7
- 230000004087 circulation Effects 0.000 description 6
- 239000002826 coolant Substances 0.000 description 6
- 238000004146 energy storage Methods 0.000 description 6
- 239000003507 refrigerant Substances 0.000 description 6
- 238000011017 operating method Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/18—Heating or cooling the filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention is to provide a kind of extraction raffinate treatment process of freezing and filtering unit, a kind of freezing and filtering unit has three-stage filtration, the three-stage filtration: level-one initial filter, second level refined filtration, three-level end-filtration, at the end of freezing and filtering unit filtering, extraction raffinate in the freezing and filtering unit is carried out systemic circulation, after the extraction raffinate is limpid, first carries out the level-one initial filter extraction raffinate and be pumped into the second level refined filtration filtering, filtered out through the three-level end-filtration；It after level-one initial filter extraction raffinate filtering, then carries out the second level refined filtration and is recycled to agitator tank limpid, carry out the second level refined filtration extraction raffinate suction three-level end-filtration later and filter out；After second level refined filtration extraction raffinate filtering, carry out again the three-level end-filtration be recycled to agitator tank it is limpid, the three-level end-filtration extraction raffinate suction small security filter is carried out later to filter out, after three-level end-filtration extraction raffinate filtering, the small security filter extraction raffinate processing is carried out.The present invention is scientific and reasonable, simple and practical.
Description
Technical field
The present invention relates to a kind of extraction raffinate treatment process, and in particular to a kind of extraction raffinate treatment process of freezing and filtering unit.
Background technique
In filtering industry, will there are extraction raffinate in filter body, the especially multistage of freezing and filtering unit in filter bank
Filter generally has three-stage filtration or secondary filtration, three-stage filtration: level-one initial filter, second level refined filtration, three-level end-filtration, second level
Filtering: level-one initial filter, second level end-filtration；The extra liquid of filter is also more, and extraction raffinate is mostly to be pumped into extraction raffinate tank to carry out next group
Filtering this liquid for closing, but having is just few, and batch cannot mix again, and reduction extraction raffinate has much room for improvement.
Summary of the invention
To solve the above-mentioned problems, it is an object of the invention to provide a kind of extraction raffinate treatment process of freezing and filtering unit, science
Rationally, simple and practical, reduce the extraction raffinate for filtering this liquid.
A kind of extraction raffinate treatment process of freezing and filtering unit, a kind of freezing and filtering unit generally have three-level mistake
Filter: level-one initial filter, second level refined filtration, three-level end-filtration；At the end of freezing and filtering unit filtering, the freezing and filtering
Extraction raffinate in unit carries out systemic circulation, after the extraction raffinate is limpid, first carries out the level-one initial filter extraction raffinate and is pumped into the second level refined filtration
Filtering is filtered out through the three-level end-filtration；When the level-one initial filter extraction raffinate filtering after, then carry out the second level refined filtration with
Agitator tank is recycled to limpid, carries out the second level refined filtration extraction raffinate later and be pumped into the three-level end-filtration to filter out；When the second level
It after refined filtration extraction raffinate filters, then carries out the three-level end-filtration and is recycled to agitator tank limpid, carry out the three-level later
End-filtration extraction raffinate is pumped into small security filter and filters out, after three-level end-filtration extraction raffinate filtering, described in progress
The processing of small security filter extraction raffinate, what is finally handled is exactly the extraction raffinate in the extraction raffinate and pipeline ensured public security in filter.
A kind of freezing and filtering unit has plenty of secondary filtration, and technique is the same as the three-stage filtration, secondary filtration: level-one
Initial filter, second level end-filtration；At the end of freezing and filtering unit filtering, the extraction raffinate in the freezing and filtering unit is carried out
Systemic circulation to the extraction raffinate is limpid or the level-one initial filter and agitator tank to be recycled to the extraction raffinate limpid, carry out described one later
Grade initial filter extraction raffinate is pumped into the second level end-filtration and filters out；After level-one initial filter extraction raffinate filtering, then carry out described two
Grade end-filtration is recycled to limpid with agitator tank, carries out second level end-filtration extraction raffinate suction small security filter and filters out,
After second level terminal extraction raffinate filtering, the small security filter extraction raffinate processing is carried out, finally to be processed is institute
State the extraction raffinate in the extraction raffinate and pipeline in security personnel's filter.
The craft science is reasonable, simple and practical, reduces the extraction raffinate in freezing and filtering unit.
Detailed description of the invention
Fig. 1 is schematic diagram of the invention.
Specific embodiment
Now in conjunction with attached drawing and foregoing invention content, the present invention is described in further detail.Referring to Fig.1, the object of the invention
It is to provide a kind of extraction raffinate treatment process of freezing and filtering unit, the craft science is reasonable, and it is simple and practical, reduce and filters this liquid
Extraction raffinate.
A kind of freezing and filtering unit, comprising: Z8 refrigeration system, A cooling water recirculation system, A coolant circulating system, B
The cold feed liquor system of coolant circulating system, A, the cold feed liquor system of B, the cold feed liquor system of C, soil series system is hung in A filter, soil series system is hung in B filter, C filter
Hang soil series system, A systemic circulation cooling system, B systemic circulation cooling system, C systemic circulation cooling system, A freezing and filtering system, B freezing
The normal feed liquor system of filtration system, C freezing and filtering system, D, the normal feed liquor system of E, the normal feed liquor system of F, the normal feed liquor system of G, D room temperature
Filtration system, E room temperature filtration system, F room temperature filtration system, G room temperature filtration system, A add-on system, B add-on system, Z4 filtering
Machine extraction raffinate filters out system, Z6 filter extraction raffinate filters out system, Z7 filter extraction raffinate filters out system.
The A cooling water recirculation system includes: that B2 valve, Z12 cooling tower, B1 valve, G6 cooling pump pass through pipeline and the Z8
The condenser inlet and outlet connection of refrigeration system forms A cooling water circulation loop；
The A coolant circulating system includes: that A1 valve, Z9 refrigerant tank, A2 valve, G7 refrigerant pump, A3 valve, Z3 exchanger, A4 valve pass through
Pipeline connect to form A refrigerant circulation circuit with the evaporator inlet-outlet of the Z8 refrigeration system；
The B coolant circulating system include: the A1 valve, the Z9 refrigerant tank, the A2 valve, the G7 refrigerant pump, A5 valve,
Z10 exchanger, A6 valve connect to form B refrigerant circulation circuit by pipeline with the evaporator inlet-outlet of the Z8 refrigeration system；
The cold feed liquor system of A includes: Z1 shield filter, C1 valve, G1 pump, Z2 exchanger, the Z3 exchanger, C2 valve, A9 valve, G2
Pump, Z4 filter, C3 valve, E5 valve, Z5 agitator tank, C4 valve, G3 pump, Z6 filter connect to form the cold feed liquor circuit A by pipeline；
The cold feed liquor system of B includes: the Z1 shield filter, the C1 valve, G1 pump, the Z2 exchanger, the Z3 friendship
Parallel operation, the C2 valve, the A9 valve, G2 pump, the Z4 filter connect to form the cold feed liquor circuit B by pipeline；
The cold feed liquor system of C includes: the Z1 shield filter, the C1 valve, G1 pump, the Z2 exchanger, the Z3 friendship
Parallel operation, the C2 valve, D2 valve, M7 valve, G3 pump, the Z6 filter connect to form the cold feed liquor circuit C by pipeline；
It includes: C8 valve, the A9 valve, G2 pump, the Z4 filter, the C3 valve, the E5 that soil series system is hung in the A filter
Valve, the Z5 agitator tank connect to form the Z4 filter precoating filter aid circulation loop by pipeline；
It includes: D8 valve, G3 pump, the Z6 filter, D5 valve, the E5 valve, the Z5 agitator tank that soil series system is hung in the B filter
It connects to form the Z6 filter precoating filter aid circulation loop by pipeline；
It includes: that C7 valve, G4 pump, Z7 filter, E4 valve, the E5 valve, the Z5 agitator tank pass through pipeline that soil series system is hung in C filter
Connection forms the Z7 filter precoating filter aid circulation loop；
The A systemic circulation cooling system include: E1 valve, the Z2 exchanger, the Z3 exchanger, the C2 valve, the A9 valve,
The G2 pump, the Z4 filter, the C3 valve, the C4 valve, the G3 pump, the Z6 filter, C5 valve, the Z2 exchange
Device, G4 pump connect to form A systemic circulation cooling circuit by pipeline；
The B systemic circulation cooling system includes: the E1 valve, the Z2 exchanger, the Z3 exchanger, the C2 valve, described
A9 valve, G2 pump, the Z4 filter, the C3 valve, F1 valve, the Z2 exchanger, the G4 pump connect shape by pipeline
At B systemic circulation cooling circuit；
The C systemic circulation cooling system includes: the E1 valve, the Z2 exchanger, the Z3 exchanger, the C2 valve, described
D2 valve, the M7 valve, G3 pump, the Z6 filter, the C5 valve, the Z2 exchanger, the G4 pump are connected by pipeline
It connects to form C systemic circulation cooling circuit；
The A freezing and filtering system includes: the Z1 shield filter, the C1 valve, G1 pump, the Z2 exchanger, the Z3
Exchanger, the C2 valve, the A9 valve, G2 pump, the Z4 filter, the C3 valve, the C4 valve, the G3 pump, institute
State Z6 filter, the C5 valve, the Z2 exchanger, G4 pump, the Z7 filter, C6 valve connect to form A by pipeline
Freezing and filtering circuit；
The B freezing and filtering system includes: the Z1 shield filter, the C1 valve, G1 pump, the Z2 exchanger, the Z3
Exchanger, the C2 valve, the A9 valve, G2 pump, the Z4 filter, the C3 valve, the F1 valve, the Z2 exchange
Device, G4 pump, the Z7 filter, the C6 valve connect to form B freezing and filtering circuit by pipeline；
The C freezing and filtering system includes: the Z1 shield filter, the C1 valve, G1 pump, the Z2 exchanger, the Z3
Exchanger, the C2 valve, the D2 valve, the M7 valve, G3 pump, the Z6 filter, the C5 valve, the Z2 exchange
Device, G4 pump, the Z7 filter, the C6 valve connect to form C freezing and filtering circuit by pipeline；
The normal feed liquor system of D includes: the Z1 shield filter, D1 valve, the D2 valve, the A9 valve, G2 pump, the Z4 mistake
Filter, the C3 valve, the E5 valve, the Z5 agitator tank, the C4 valve, G3 pump, the Z6 filter are connected by pipeline
It connects to form the normal feed liquor circuit D；
The normal feed liquor system of E includes: Z1 shield filter, the D1 valve, the D2 valve, the A9 valve, G2 pump, described
Z4 filter, the C3 valve, the E5 valve, the Z5 agitator tank piping connect to form the normal feed liquor circuit E；
The normal feed liquor system of F include: Z1 shield filter, the D1 valve, the M7 valve, G3 pump, the Z6 filter,
The D5 valve, the E5 valve, the Z5 agitator tank connect to form the normal feed liquor circuit F by pipeline；
The normal feed liquor system of G includes: Z1 shield filter, the D1 valve, F2 valve, G4 pump, the Z7 filter, described
E4 valve, the E5 valve, the Z5 agitator tank connect to form the normal feed liquor circuit G by pipeline；
The D room temperature filtration system includes: the Z1 shield filter, the D1 valve, the D2 valve, the A9 valve, G2 pump, institute
State Z4 filter, the C3 valve, the C4 valve, G3 pump, the Z6 filter, D4 valve connect to form D room temperature by pipeline
Filtration circuit；
The E room temperature filtration system includes: the Z1 shield filter, the D1 valve, the D2 valve, the A9 valve, G2 pump, institute
State Z4 filter, D3 valve connects to form E room temperature filtration circuit by pipeline；
The F room temperature filtration system includes: the Z1 shield filter, the D1 valve, the M7 valve, G3 pump, Z6 filtering
Machine, the D4 valve connect to form F room temperature filtration circuit by pipeline；
The G room temperature filtration system includes: the Z1 shield filter, the F2 valve, G4 pump, the Z7 filter, the C6
Valve connects to form G room temperature filtration circuit by pipeline；
The A add-on system includes: that the Z5 agitator tank, G5 addition pump, D6 valve, the Z4 filter connect to be formed by pipeline
A adds circuit；
The B add-on system include: the Z5 agitator tank, the G5 addition pump, D7 valve, the Z6 filter pass through pipeline connection
It forms B and adds circuit.
The Z4 filter extraction raffinate filter out system include: Z1 shield filter, it is the C1 valve, the Z2 exchanger, described
Z3 exchanger, the C2 valve, the A9 valve, the Z4 filter, the C3 valve, the M1 valve, the M3 valve, the C4 valve,
The G3 pump, the Z6 filter, the C5 valve, the Z2 exchanger, the G4 pump, the Z7 filter, the C6 valve are logical
Piping, which connects, to be formed Z4 filter extraction raffinate and filters out circuit；
The Z6 filter extraction raffinate filter out system include: the Z6 filter, it is the M2 valve, the M3 valve, the D5 valve, described
C5 valve, the Z2 exchanger, G4 pump, the Z7 filter, the C6 valve connect to form Z6 filter extraction raffinate by pipeline
Filter out circuit；
The Z7 filter extraction raffinate filter out system include: the Z7 filter, the F3 valve, the F4 valve, B6 valve, G11 pump,
Z13 security personnel's filter connects to form Z7 filter extraction raffinate and filter out circuit by pipeline；
The present invention can realize that freezing and filtering, room temperature filtering, quickly cooling exchange, are fast with automated and semi-automatic operating procedure respectively
The processes use such as heat exchange is to select according to demand, and operating procedure is described below, before executing each single item system, all systems all
It is that closed state has reached to service requirement, the pump element opening and closing in execution system according to designer's design requirement, (hold by some
Pump belongs to closed state into pipe path individually in row system), all elements have not represented opening and closing function such as exchanger, filter
Deng.It because equipment operating procedures is more, is not written in patent if any individual links well-known technique, is explained by designer, be such as vented
Valve pipeline gets rid of native device etc..
It executes quickly cooling swap operation: starting the A cooling water recirculation system and the B coolant circulating system, start later
The Z8 refrigeration system, the liquid exchanged later are pumped into the Z10 exchanger by pipeline starting G8 and swap, realizes
Quickly cooling exchange process.
It executes the A freezing and filtering system operation: starting the cold feed liquor system completion feed liquor of the A and be turned off, Zhi Houqi
It moves the A filter extension soil series system to carry out precoating drainage Jie to the Z4 filter, complete and close, starts the B filter extension soil later
System carries out precoating drainage to the Z6 filter and is situated between, completes and closes；Start the A cooling water recirculation system and described simultaneously
A coolant circulating system starts the Z8 refrigeration system later and carries out cold energy energy storage；The starting when cold energy energy storage reaches requirement later
The A systemic circulation cooling system is closed the A systemic circulation cooling system, is started later later when cooling reaches filtering requirement
The A freezing and filtering system and the A add-on system carry out normal filtration.
It executes the B freezing and filtering system operation: starting the cold feed liquor system completion feed liquor of the B and be turned off, it is right later
The A filter hangs soil series system and carries out precoating drainage Jie, completes and close；Start the A cooling water recirculation system simultaneously and the A is cold
Matchmaker's circulatory system starts the Z8 refrigeration system later and carries out cold energy energy storage；Start institute when cold energy energy storage reaches requirement later
B systemic circulation cooling system is stated, later when cooling reaches filtering requirement, the B systemic circulation cooling system is closed, starts institute later
It states B freezing and filtering system and the A add-on system carries out normal filtration.
It executes the C freezing and filtering system operation: starting the cold feed liquor system completion feed liquor of the C and be turned off, it is right later
The B filter hangs soil series system and carries out precoating drainage Jie, completes and close；Start the A cooling water recirculation system simultaneously and the A is cold
Matchmaker's circulatory system starts the Z8 refrigeration system later and carries out cold energy energy storage；Start institute when cold energy energy storage reaches requirement later
C systemic circulation cooling system is stated, later when cooling reaches filtering requirement, the C systemic circulation cooling system is closed, starts institute later
It states C freezing and filtering system and the B add-on system carries out normal filtration.
It executes the D room temperature filtration system operation: starting the normal feed liquor system of the D, completion feed liquor is turned off, Zhi Houqi
It moves the A filter extension soil series system to carry out precoating drainage Jie to the Z4 filter, complete and close, starts the B filter extension soil later
System carries out precoating drainage to the Z6 filter and is situated between, completes and closes, and starts the D room temperature filtration system and the A later
Add-on system, into normal filtration.
It executes the E room temperature filtration system operation: starting the normal feed liquor system of the E, completion feed liquor is turned off, Zhi Houqi
It moves the A filter extension soil series system to carry out precoating drainage Jie to the Z4 filter, complete and close, starts the E room temperature mistake later
Filter system and the A add-on system, into normal filtration.
It executes the F room temperature filtration system operation: starting the normal feed liquor system of the F, completion feed liquor is turned off, Zhi Houqi
It moves the B filter extension soil series system to carry out precoating drainage Jie to the Z6 filter, complete and close, starts the F room temperature mistake later
Filter system and the B add-on system, into normal filtration.
It executes the G room temperature filtration system operation: starting the normal feed liquor system of the G, completion feed liquor is turned off, Zhi Houqi
It moves the C filter extension soil series system to carry out precoating drainage Jie to the Z7 filter, complete and close, starts the G room temperature mistake later
Filter system, into normal filtration.
It executes the Z4 filter extraction raffinate and filters out system operatio: after filtering, starting the A systemic circulation cooling system
To the limpid closing of Z4 filter extraction raffinate, starts the Z4 filter extraction raffinate later and filter out system, the Z4 filter extraction raffinate
Closing is filtered.
It executes the Z6 filter extraction raffinate and filters out system operatio: starting B filter and hang the soil series and unite to more than the Z6 filter
The limpid closing of liquid, starting executes the Z6 filter extraction raffinate and filters out system later, and the Z6 filter extraction raffinate has filtered closing.
It executes the Z7 filter extraction raffinate and filters out system operatio: starting C filter and hang the soil series and unite to more than the Z7 filter
The limpid closing of liquid, starting executes the Z7 filter extraction raffinate and filters out system later, and the Z7 filter extraction raffinate has filtered closing.
Cooperate manual operation two-in-one system, to it is cumbersome and can unified instruction devise modularization but need to cooperate
Personnel acquire data and carry out compounding practice, because the pressure difference and flow of filtering flow change all in lasting variation and diatomite additive amount
It requires, also need the requirement such as temperature difference to freezing and filtering, need the implementation of artificial detection data partly to instruction cannot be completely unified
Automation or manualization cooperation, the cooling tower can design using in circulating water temperature adjustable extent voluntarily auto-control unlatching with
It closes, the cooling tower on the water tank, do not mark in view by display touch screen, control power distribution cabinet, module etc.
Out；Two-in-one control manually is added using automatically controlled and part is automatically controlled to valve portion used, carries out Regulating Pressure of Relief Values automatic protection dress
It sets, the outlet of pump power source is connect with the high pressure port of safety valve, brought with preventing the failure of electric control valve and its violating operation
Big pressure difference bring the possibility of damage to partial devices, the row pressure port connection of safety valve can liquid storage container, to prevent row pressure liquid
Body is lost and its splashing bring hidden danger！Can design at feed liquor and out liquid multi-pipeline to valve control, meet a variety of liquid
Transform filter cleaning of body etc..A kind of my existing several patented technologies: patent of invention title: automation are additionally used simultaneously
Freezing filtration device and its operating method, patent of invention number: 201110433647.X, patent of invention title: a kind of modularization is low
Warm filter device and its operating method, patent of invention number: 201110433715.2 ensure scientific and technological content and its city of the invention
Field, practical value.
Claims (2)
1. a kind of extraction raffinate treatment process of freezing and filtering unit, a kind of freezing and filtering unit has three-stage filtration, and feature exists
In the three-stage filtration: level-one initial filter, second level refined filtration, three-level end-filtration, at the end of freezing and filtering unit filtering,
Extraction raffinate in the freezing and filtering unit is carried out systemic circulation, after the extraction raffinate is limpid, the level-one initial filter extraction raffinate is first carried out and takes out
Enter the second level refined filtration filtering, filtered out through the three-level end-filtration；After level-one initial filter extraction raffinate filtering, then carry out
The second level refined filtration is recycled to limpid with agitator tank, carries out the second level refined filtration extraction raffinate later and is pumped into the three-level end-filtration filter
Out；When the second level refined filtration extraction raffinate filtering after, then carry out the three-level end-filtration be recycled to agitator tank it is limpid, later
It carries out the three-level end-filtration extraction raffinate suction small security filter to filter out, when three-level end-filtration extraction raffinate filtering terminates
Afterwards, the small security filter extraction raffinate processing is carried out.
2. a kind of extraction raffinate treatment process of freezing and filtering unit according to claim 1, a kind of freezing and filtering unit has
Secondary filtration, which is characterized in that the secondary filtration: level-one initial filter, second level end-filtration, when the freezing and filtering unit filters
At the end of, the extraction raffinate in the freezing and filtering unit carry out systemic circulation to the extraction raffinate is limpid or the level-one initial filter with stir
Mixing tank, to be recycled to the extraction raffinate limpid, carries out the level-one initial filter extraction raffinate later and be pumped into the second level end-filtration to filter out；Work as institute
After stating the filtering of level-one initial filter extraction raffinate, then carries out the second level end-filtration and be recycled to limpid, progress described two with agitator tank
Grade end-filtration extraction raffinate is pumped into small security and filters out, and after second level terminal extraction raffinate filtering, carries out described small-sized
Filter extraction raffinate of ensuring public security processing.
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| CN201810881630.2A CN109331540A (en) | 2018-08-05 | 2018-08-05 | A kind of extraction raffinate treatment process of freezing and filtering unit |
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| CN201810881630.2A CN109331540A (en) | 2018-08-05 | 2018-08-05 | A kind of extraction raffinate treatment process of freezing and filtering unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109603281A (en) * | 2019-02-22 | 2019-04-12 | 高云芝 | A kind of low temperature multistage filtering stream cutting apparatus |
| CN110384976A (en) * | 2019-08-11 | 2019-10-29 | 高云芝 | A kind of technique of freezing and filtering unit |
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| CN102492598A (en) * | 2011-12-22 | 2012-06-13 | 高云芝 | Automatic freezing filtration device and operation method thereof |
| CN102489072A (en) * | 2011-12-22 | 2012-06-13 | 高云芝 | Modularized low-temperature filtering device and operation method thereof |
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| CN110384976A (en) * | 2019-08-11 | 2019-10-29 | 高云芝 | A kind of technique of freezing and filtering unit |
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Application publication date: 20190215 |