CN109371409A - A kind of the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recoverying and utilizing method - Google Patents
A kind of the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recoverying and utilizing method Download PDFInfo
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- CN109371409A CN109371409A CN201810699937.0A CN201810699937A CN109371409A CN 109371409 A CN109371409 A CN 109371409A CN 201810699937 A CN201810699937 A CN 201810699937A CN 109371409 A CN109371409 A CN 109371409A
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- alkali
- lye
- partial crystallization
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- aluminum
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels
- B21C35/06—Cleaning dies, ducts, containers or mandrels
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/22—Light metals
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/36—Regeneration of waste pickling liquors
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Centrifugal Separators (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The present invention provides a kind of applied to the Aluminum-Extruding Die alkali cleaning and the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recycling system of alkali cleaning technical field of comprehensive utilization, the invention further relates to a kind of the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recoverying and utilizing methods, pot mould recycle of alkali liquor slot of the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recycling system prepares tank (1) with lye and is connected to, partial crystallization separating tank (4) is connected to mould recycle of alkali liquor slot is stewed, partial crystallization separating tank (4) top is connected to middle tank (5), blender is set in partial crystallization separating tank (4), blender is connect with control unit (2), heater is set in partial crystallization separating tank (4), heater is connect with control unit (2), partial crystallization separating tank (4) is connected to automatic centrifugal machine (6), the Aluminum-Extruding Die alkali cleaning equipment alkali cleaning of the present invention is useless Liquid recoverying and utilizing method recycles the lye after alkali cleaning, realizes that aluminium hydroxide is collected and mother liquor recycling, realizes die treatment process non-wastewater discharge, the functions such as increase economic efficiency.
Description
Technical field
The invention belongs to the Aluminum-Extruding Die alkali cleaning and alkali cleaning technical field of comprehensive utilization, are to be related to one kind more specifically
The Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recycling system, the invention further relates to a kind of the Aluminum-Extruding Die alkali cleaning equipment alkali cleanings
Devil liquor recovery utilizes method.
Background technique
In aluminium processing industry, aluminum or aluminum alloy profile usually remains one after extrusion die forms on extrusion die
A little aluminium alloys, in order to which next time is produced using these molds, it is necessary to be removed to the aluminium scrap in extrusion die.It is in the prior art
Method is directly placed into extrusion die in alkali slot, allows lye and aluminium to generate chemical reaction using heating soaking method, with reach by
Remaining aluminium scrap is removed in mold.The characteristics of this method is by the method for alkali cleaning that the tap hole of mold and its soldering is intracavitary
Corrosion of aluminium alloy and be discharged.This method has the disadvantage in that 1, the degree of automation is not high, and above each processing step is
Manual handling or handling can be realized, in this way, working efficiency is not high, but also labor intensity of workers is bigger；2, die worker people is boiled
In than working under relatively rugged environment, because alkali cleaning pond in boiling mold process, due to chemical reaction, can generate a large amount of when boiling mould
Temperature high (generally at 95 DEG C -130 DEG C or so) unpleasant alkali vapor again；3, the wasting of resources, it is residual in this process mold
The alkali cleaning time needed for the aluminium alloy stayed is long, it is also necessary to and a large amount of caustic soda is reacted with aluminium alloy, and a large amount of caustic soda cannot recycle,
But also pollute environment.So above-mentioned alkali washing method not only seriously pollutes environment, the health of operator is influenced, is increased
It is spent before processing people's labour, and to the significant wastage of resource (alkali and aluminium ion).
Summary of the invention
The technical problems to be solved by the present invention are: in view of the deficiencies of the prior art, it is simple to provide a kind of structure, from basic
The consumption of upper change aluminum profile producer die treatment process piece alkali is big, alum recovery amount is few, working environment is filthy, dangerous etc. asks
Topic, the lye after alkali cleaning is recycled, and by chemical method by lye mother liquor and aluminium ion separate, realization
Aluminium hydroxide is collected and mother liquor recycling, realizes that die treatment process non-wastewater discharge, recycling aluminium ion are increased economic efficiency
Etc. functions, finally make the Aluminum-Extruding Die alkali cleaning and recycling operation realize efficient, energy saving, pollution-free, safe the Aluminum-Extruding Die
Alkali cleaning equipment alkali-washing waste liquid recycling system.
Solve the problems, such as techniques discussed above, the technical scheme adopted by the invention is as follows:
The present invention is a kind of the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recycling system, the Aluminum-Extruding Die alkali
Washing equipment includes that alkali cleaning equipment lye prepares tank, and alkali cleaning equipment lye prepares setting centrifugal pump and NaOH content concentration sensing in tank
Device, the centrifugal pump and NaOH content concentration sensor are connect with control unit respectively, the Aluminum-Extruding Die alkali cleaning equipment
Alkali-washing waste liquid recycling system includes stewing mould recycle of alkali liquor slot, partial crystallization separating tank, middle tank, automatic centrifugal machine, stews mould
Recycle of alkali liquor slot prepares tank with lye and is connected to, and partial crystallization separating tank is connected to mould recycle of alkali liquor slot is stewed, and partial crystallization separating tank top is in
Between sink be connected to, blender is set in partial crystallization separating tank, and blender connect with control unit, is arranged in partial crystallization separating tank and is heated
Device, heater are connect with control unit, and partial crystallization separating tank is connected to automatic centrifugal machine, and automatic centrifugal machine and control unit connect
It connects.
Pot mould recycle of alkali liquor slot of the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recycling system passes through recycling
Pipeline prepares tank with lye and is connected to, and autocontrol valve I is arranged in recovery pipe, autocontrol valve I is connect with control unit, partial crystallization
The recycling solution inlet of separating tank is connected to by lye transfer conduit with mould recycle of alkali liquor slot is stewed, and is arranged in lye transfer conduit
Autocontrol valve II, autocontrol valve II are connect with control unit, partial crystallization separating tank by sedimentation solution line with automatically from
Scheming connection, settles and autocontrol valve III is arranged on solution line, and autocontrol valve III is connect with control unit.
Partial crystallization separation trench bottom setting solution precipitate A l (OH)3Outlet, solution precipitate A l (OH)3Outlet and it is complete from
Dynamic centrifuge is connected to, and aluminium hydroxide separating opening and lye mother liquor separating opening, lye mother liquor separating opening are arranged on automatic centrifugal machine
It is connected to the recycling solution inlet of partial crystallization separating tank.
The partial crystallization separating tank includes two, and the recycling solution inlet of each partial crystallization separating tank is turned by a lye
Move pipeline with stew mould recycle of alkali liquor slot be connected to, each partial crystallization separating tank top is connected to middle tank, each partial crystallization separating tank and
The connection of automatic centrifugal machine.
The partial crystallization separator further includes temperature sensor I, flow sensor, separation mechanical stirrer, temperature sensor
I, flow sensor is connect with control unit respectively, and separation mechanical stirrer is connect with stirring motor I, stirring motor I and control unit
Part connection, separation mechanical stirrer are mounted on the bracket of partial crystallization separator interior setting.
The middle tank further includes temperature sensor II, fluid level controller, sink blender, temperature sensor II,
Fluid level controller is connect with control unit respectively, and sink blender is connect with stirring motor II, and stirring motor and control unit connect
It connects, stirring motor is mounted on the bracket being arranged inside middle tank.
The Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recycling system further includes filtrate receiver, and filtrate receiver setting exists
Position between partial crystallization separating tank and automatic centrifugal machine, the interior setting temperature sensor III of filtrate receiver, fluid level controller, mother liquor centrifugation
Pump, temperature sensor III, fluid level controller, mother liquor centrifugal pump are connected with control unit respectively, and mother liquor centrifugal pump is configured to
The mother liquor that automatic centrifugal machine is isolated is pumped into the structure in partial crystallization separating tank.
The invention further relates to a kind of structure is simple, fundamentally change the consumption of aluminum profile producer die treatment process piece alkali
Greatly, the problems such as alum recovery amount is few, working environment is filthy, dangerous, recycles the lye after alkali cleaning, and pass through chemistry
Method by lye mother liquor and aluminium ion separate, realize aluminium hydroxide collect and mother liquor recycling, realize mold at
Science and engineering sequence non-wastewater discharge, recycling aluminium ion such as are increased economic efficiency at the functions, and the Aluminum-Extruding Die alkali cleaning and recycling are made
Industry realizes efficient, energy saving, pollution-free, safe the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recoverying and utilizing method.
The recycling step of the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recoverying and utilizing method are as follows: 1) control unit is logical
The NaOH content concentration values that NaOH content concentration sensor monitoring lye prepares the lye in tank are crossed, when lye prepares in tank
When the NaOH content concentration of lye is lower than NaOH content concentration standard content concn numerical value, control unit passes through centrifugal pump for lye
The lye prepared in tank pumps to pot mould recycle of alkali liquor slot of recycle of alkali liquor equipment, then is pumped into partial crystallization separating tank；2) it controls
Component controls heater heats the lye entered in partial crystallization separating tank, and control unit control blender is stirred into partial crystallization separation
Lye in slot；3) under blender stirring action, reach the NaAlO of saturation2With lye mixed solution, a small amount of hydrochloric acid is being instilled
Part generates Al (OH) afterwards3More Al (OH) are adsorbed as crystal seed3, reduced by control crystallization temperature, so that Al (OH)3Sedimentation
Trench bottom is separated to partial crystallization, superposed low concentration NaOH is by flowing to middle tank in solution；4) it is deposited to partial crystallization
Separate the Al (OH) of trench bottom3Into automatic centrifugal machine, under the effect of automatic centrifugal machine, automatic centrifugal machine is by Al (OH)3
In mother liquor and aluminium hydroxide separated, mother liquor enter back into partial crystallization separating tank recycling, to the aluminium hydroxide separated into
Row is collected；5) it repeats the above steps, batch is completed the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid and recycled.
When the control unit control heater heats the lye entered in partial crystallization separating tank, heating and temperature control exists
Between 60 DEG C of -70 DEG C of ranges.This temperature is that spent lye transfer comes in treatment box, this waste liquid has sufficiently dissolved NaAlO2, so that
Solution reaches saturation or supersaturation.The benefit of such temperature selection is: 1, facilitating temperature to keep, reduce thermal losses.2,
As far as possible sufficiently dissolution NaAlO2.3, temperature is slowly reduced from this temperature, so that NaAlO2Solubility reduces in liquid alkaline, in crystal seed
Under suction-operated, there is more Al (OH)3It crystallizes out.
Lye is prepared pot mould that the lye in tank pumps to recycle of alkali liquor equipment by centrifugal pump by the control unit
When recycle of alkali liquor slot, control unit controls autocontrol valve I and opens autocontrol valve II, and the lye that lye prepares in tank passes through
Recovery pipe and lye transfer conduit enter partial crystallization separating tank；The control unit control blender is stirred into partial crystallization separation
When lye in slot, control unit controls autocontrol valve III and opens, and is deposited to the NaAlO of partial crystallization separation trench bottom2By heavy
Drop solution line enters automatic centrifugal machine.
Superposed low concentration NaOH is by the way that when flowing to middle tank, middle tank is to low dense in the solution
It spends NaOH to collect, the low concentration NaOH of collection is used to configure the bottom material of the soda-wash solution of the Aluminum-Extruding Die alkali cleaning equipment.
After being collected to the aluminium hydroxide separated, for manufacturing alum and ice crystal.
Position is arranged between partial crystallization separating tank and automatic centrifugal machine in filtrate receiver, and automatic centrifugal machine is by NaAlO2In
After mother liquor and aluminium hydroxide are separated, the mother liquor that automatic centrifugal machine is isolated is pumped into crystalline substance by the mother liquor centrifugal pump of filtrate receiver
It is recycled in analysis separating tank.
Using technical solution of the present invention, can obtain it is below the utility model has the advantages that
The Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recycling system of the present invention and alkali-washing waste liquid recycle
Method, when carrying out recycle of alkali liquor utilization, control unit monitors the alkali in lye preparation tank by NaOH content concentration sensor
The NaOH content concentration values of liquid, when the NaOH content concentration that lye prepares the lye in tank contains lower than NaOH content concentration standard
When measuring concentration values, lye is prepared pot mould alkali that the lye in tank pumps to recycle of alkali liquor equipment by centrifugal pump by control unit
Liquid accumulator tank, then be pumped into partial crystallization separating tank；Control unit controls heater and heats to the lye entered in partial crystallization separating tank,
Control unit control blender is stirred into the lye in partial crystallization separating tank；It is deposited to the Al (OH) of partial crystallization separation trench bottom3Into
Enter automatic centrifugal machine, under the effect of automatic centrifugal machine, automatic centrifugal machine is by Al (OH)3In mother liquor and aluminium hydroxide into
Row separation, mother liquor enter back into partial crystallization partial crystallization separating tank recycling, are collected to the aluminium hydroxide separated；Repeat above-mentioned step
Suddenly, batch completes the recycling of the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid.In this way, recycle of alkali liquor is whole certainly using not only realization
Dynamicization control, and more importantly, it realizes reusing of energy source, reduces the wasting of resources, reduce disposal of pollutants, realize environmental protection.
The Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recycling system of the present invention and alkali-washing waste liquid recoverying and utilizing method, system
Structure is simple, and method and step is simple, obvious technical effects, fundamentally changes the consumption of aluminum profile producer die treatment process piece alkali
Greatly, the problems such as alum recovery amount is few, working environment is filthy, dangerous, recycles the lye after alkali cleaning, and pass through chemistry
Method by lye mother liquor and aluminium ion separate, realize aluminium hydroxide collect and mother liquor recycling, realize mold at
Science and engineering sequence non-wastewater discharge, recycling aluminium ion such as are increased economic efficiency at the functions, and the Aluminum-Extruding Die alkali cleaning and recycling are made
Industry is realized efficient, energy saving, pollution-free, safe.Recycling system and method for the present invention solve traditional alkali cleaning at present
The main problem of device, economic, society, environmental benefit are very considerable.
Detailed description of the invention
Brief description is made to content expressed by each attached drawing of this specification and the label in figure below:
Fig. 1 is the structural schematic diagram of the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recycling system of the present invention；
Appended drawing reference are as follows: 1, lye preparation tank；2, control unit；4, partial crystallization separating tank；5, middle tank (intermediate water pot)；
6, automatic centrifugal machine；7, air-dry machine；8, boiler；9, process chamber (treatment box)；10, filtrate receiver；11, slot is sampled；12, it sprays
Device；13, heat exchanger；14, mould alkali tank is boiled；15, ultrasonic cleaner；16, slot is sampled；17, rinse water prepares tank.
Specific embodiment
Below against attached drawing, by the description of the embodiment, to for example related each structure of a specific embodiment of the invention
The works such as the shape of part, construction, the mutual alignment between each section and connection relationship, the effect of each section and working principle are further
Detailed description:
As shown in Fig. 1, the present invention is a kind of the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recycling system, described
The Aluminum-Extruding Die alkali cleaning equipment include alkali cleaning equipment lye prepare tank 1, alkali cleaning equipment lye prepare tank 1 in setting centrifugal pump and
NaOH content concentration sensor, the centrifugal pump and NaOH content concentration sensor are connect with control unit 2 respectively, the aluminium
Extrusion die alkali cleaning equipment alkali-washing waste liquid recycling system include stew mould recycle of alkali liquor slot, partial crystallization separating tank 4, middle tank 5,
Automatic centrifugal machine 6 stews mould recycle of alkali liquor slot and is connected to lye preparation tank 1, and partial crystallization separating tank 4 and pot mould recycle of alkali liquor slot connect
Logical, 4 top of partial crystallization separating tank is connected to middle tank 5, and blender is arranged in partial crystallization separating tank 4, and blender and control unit 2 connect
It connects, heater is set in partial crystallization separating tank 4, heater is connect with control unit 2, and partial crystallization separating tank 4 and automatic centrifugal machine 6 connect
Logical, automatic centrifugal machine 6 is connect with control unit 2.Above structure, when carrying out recycle of alkali liquor utilization, control unit 2 passes through
NaOH content concentration sensor monitors the NaOH content concentration values for the lye that lye prepares in tank 2, when lye prepares in tank 2
When the NaOH content concentration of lye is lower than NaOH content concentration standard content concn numerical value, control unit 2 passes through centrifugal pump for alkali
The lye that liquid prepares in tank 2 pumps to pot mould recycle of alkali liquor slot of recycle of alkali liquor equipment, then is pumped into partial crystallization separating tank 4；Control
Component 2 processed controls heater and heats to the lye entered in partial crystallization separating tank 4, and control unit 2 controls blender and is stirred into crystalline substance
Analyse the lye in separating tank 4；Under blender stirring action, reach the NaAlO of saturation2It is few instilling with lye mixed solution
Al (OH) is locally generated after amount hydrochloric acid3More Al (OH) are adsorbed as crystal seed3, reduced by control crystallization temperature, so that Al
(OH)3It is deposited to partial crystallization separation trench bottom, superposed low concentration NaOH is by flowing to middle tank in solution；4) it sinks
Drop to the Al (OH) of partial crystallization separation trench bottom3Into automatic centrifugal machine, under the effect of automatic centrifugal machine, automatic centrifugal machine
By Al (OH)3In mother liquor and aluminium hydroxide separated, mother liquor enters back into partial crystallization partial crystallization separating tank recycling, to separating
Aluminium hydroxide be collected；It repeats the above steps, batch is completed the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid and recycled.This
Sample, recycle of alkali liquor, which utilizes, not only realizes full automatic control, but also more importantly, it realizes reusing of energy source, reduces money
Source waste, reduces disposal of pollutants, realizes environmental protection.The Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid of the present invention recycles system
System, structure is simple, and fundamentally the consumption of change aluminum profile producer die treatment process piece alkali is big, alum recovery amount is few, working environment
The problems such as filthy, dangerous, recycles the lye after alkali cleaning, and passes through chemical method for the mother liquor and aluminium in lye
Ion isolation comes out, and realizes that aluminium hydroxide is collected and mother liquor recycling, realization die treatment process non-wastewater discharge recycle aluminium
Ion is increased economic efficiency function so that the Aluminum-Extruding Die alkali cleaning and recycling operation realize it is efficient, energy saving, pollution-free, safe.
Pot mould recycle of alkali liquor slot of the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recycling system passes through recycling
Pipeline prepares tank 1 with lye and is connected to, and autocontrol valve I is arranged in recovery pipe, and autocontrol valve I is connect with control unit 2, brilliant
The recycling solution inlet of analysis separating tank 4 is connected to by lye transfer conduit with mould recycle of alkali liquor slot is stewed, in lye transfer conduit
Autocontrol valve II is set, and autocontrol valve II is connect with control unit 2, and partial crystallization separating tank 4 is by sedimentation solution line and entirely
Automatic centrifuge 6 is connected to, and settles and autocontrol valve III is arranged on solution line, and autocontrol valve III is connect with control unit 2.On
Structure is stated, is connect respectively with each autocontrol valve by control unit, thus when needing each autocontrol valve to open or close,
Reliable control is realized, to realize that entire devil liquor recovery is automated using system whole-process control.
Solution precipitate A l (OH) is arranged in 4 bottom of partial crystallization separating tank3Outlet, solution precipitate A l (OH)3Outlet and it is complete from
Dynamic centrifuge 6 is connected to, and aluminium hydroxide separating opening and lye mother liquor separating opening, the separation of lye mother liquor are arranged on automatic centrifugal machine 6
Mouth is connected to the recycling solution inlet of partial crystallization separating tank 4.Above structure, after partial crystallization separating tank separates waste liquid, precipitating
React the Al (OH) formed3From solution precipitate A l (OH)3Outlet enters automatic centrifuge, carries out mother liquor and aluminum ions separation, from
And chlorine dioxide is formed, and mother liquor enters back into partial crystallization separating tank, continues to utilize.In this way, no longer will while recycling aluminium
Harmful substance direct emission, but utilize again, to not only avoid the wasting of resources, but also effective protection environment.
The partial crystallization separating tank 4 includes two, and the recycling solution inlet of each partial crystallization separating tank 4 passes through a lye
Transfer conduit is connected to mould recycle of alkali liquor slot is stewed, and each 4 top of partial crystallization separating tank is connected to middle tank 5, each partial crystallization separation
Slot 4 is connected to automatic centrifugal machine 6.Above structure, the spent lye in alkali cleaning equipment is transferred to by centrifugal pump to be stewed mould lye and receives
Collect slot, is pumped into partial crystallization separating tank again with warm constant speed degree from stewing in mould lye collecting tank, waste liquid is stirred in partial crystallization separating tank
And keep the temperature, in partial crystallization separating tank after high alkali liquid crystallization, supernatant (low-concentration alkali liquor) flows automatically to middle tank.And in middle tank
Low-concentration alkali liquor may be used as preparing in caustic washing system the bottom material of soda-wash solution again, and NaOH is made full use of, is reached
Without discharge standard.The Al (OH) to settle down3It is put into automatic centrifugal machine, under the action of the centrifugal force separates mother liquor and aluminium salt.
Partial crystallization separating tank 4 is arranged two, can be with alternately operating, the using and the reserved, one in use, another heating and thermal insulation is spare, thus
Effectively improve recovery efficiency.
The partial crystallization separator 4 further includes temperature sensor I, flow sensor, separation mechanical stirrer, temperature sensor
I, flow sensor is connect with control unit 2 respectively, and separation mechanical stirrer is connect with stirring motor I, stirring motor I and control unit
Part 2 connects, and separation mechanical stirrer is mounted on the bracket being arranged inside partial crystallization separator 4.The middle tank 5 further includes temperature
Sensor II, fluid level controller, sink blender are spent, temperature sensor II, fluid level controller are connect with control unit 2 respectively,
Sink blender is connect with stirring motor II, and stirring motor is connect with control unit 2, and stirring motor is mounted in middle tank 5
On the bracket of portion's setting.
The Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recycling system further includes filtrate receiver 10, and filtrate receiver 10 is set
Set the position between partial crystallization separating tank 4 and automatic centrifugal machine 6, setting temperature sensor III in filtrate receiver 10, fluid level controller,
Mother liquor centrifugal pump, temperature sensor III, fluid level controller, mother liquor centrifugal pump are connected with control unit 2 respectively, and mother liquor centrifugal pump is set
It is set to the structure that the mother liquor that automatic centrifugal machine 6 is isolated can be pumped into partial crystallization separating tank 4.Above structure passes through filter
Liquid bath is filtered mother liquor, is then pumped into partial crystallization separator by mother liquor delivery pump and participates in recycling again, so follows
Ring makes NaOH all be fully used, and aluminium ion is totally separated out, and economic, society, environmental benefit are very considerable.
The invention further relates to a kind of structure is simple, fundamentally change the consumption of aluminum profile producer die treatment process piece alkali
Greatly, the problems such as alum recovery amount is few, working environment is filthy, dangerous, recycles the lye after alkali cleaning, and pass through chemistry
Method by lye mother liquor and aluminium ion separate, realize aluminium hydroxide collect and mother liquor recycling, realize mold at
Science and engineering sequence non-wastewater discharge, recycling aluminium ion such as are increased economic efficiency at the functions, and the Aluminum-Extruding Die alkali cleaning and recycling are made
Industry realizes efficient, energy saving, pollution-free, safe the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recoverying and utilizing method.
The recycling step of the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recoverying and utilizing method are as follows: 1) control unit 2
The NaOH content concentration values that the lye that lye prepares in tank 2 is monitored by NaOH content concentration sensor, when lye prepares tank 2
When the NaOH content concentration of interior lye is lower than NaOH content concentration standard content concn numerical value, control unit 2 passes through centrifugal pump
Lye is prepared into the lye in tank 2 and pumps to pot mould recycle of alkali liquor slot of recycle of alkali liquor equipment, then is pumped into partial crystallization separating tank 4
It is interior；2) control unit 2 controls heater and heats to the lye entered in partial crystallization separating tank 4, and control unit 2 controls blender stirring
Lye into partial crystallization separating tank 4；3) under blender stirring action, reach the NaAlO of saturation2With lye mixed solution,
Al (OH) is locally generated after instilling a small amount of hydrochloric acid3More Al (OH) are adsorbed as crystal seed3, reduced, made by control crystallization temperature
It obtains Al (OH)3It is deposited to partial crystallization separation trench bottom, superposed low concentration NaOH is by flowing to middle tank in solution；
4) it is deposited to the Al (OH) of partial crystallization separation trench bottom3Into automatic centrifugal machine, under the effect of automatic centrifugal machine, automatically from
Scheming is by Al (OH)3In mother liquor and aluminium hydroxide separated, mother liquor enter back into partial crystallization partial crystallization separating tank recycling, to separation
Aluminium hydroxide out is collected；5) it repeats the above steps, batch completes the recycling of the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid
It utilizes.
When the control unit 2 controls heater to the lye heating entered in partial crystallization separating tank 4, heating and temperature control
Between 60 DEG C of -70 DEG C of ranges.
Lye is prepared pot that the lye in tank 2 pumps to recycle of alkali liquor equipment by centrifugal pump by the control unit 2
When mould recycle of alkali liquor slot, control unit 2 controls autocontrol valve I and opens autocontrol valve II, and lye prepares the lye in tank 1
Enter partial crystallization separating tank 4 by recovery pipe and lye transfer conduit；The control unit 2 controls blender and is stirred into crystalline substance
When analysing the lye in separating tank 4, control unit 2 controls autocontrol valve III and opens, and is deposited to 4 bottom of partial crystallization separating tank
NaAlO2Enter automatic centrifugal machine 6 by settling solution line.
Superposed low concentration NaOH is by the way that when flowing to middle tank 5, middle tank 5 is to low in the solution
Concentration NaOH is collected, and the low concentration NaOH of collection is used to configure the bottom material of the soda-wash solution of the Aluminum-Extruding Die alkali cleaning equipment.
After being collected to the aluminium hydroxide separated, for manufacturing alum and ice crystal.
Position is arranged between partial crystallization separating tank 4 and automatic centrifugal machine 6 in filtrate receiver 10, and automatic centrifugal machine 6 will
NaAlO2In mother liquor and aluminium hydroxide separated after, the mother liquor centrifugal pump of filtrate receiver 10 isolates automatic centrifugal machine 6
Mother liquor be pumped into partial crystallization separating tank 4 and recycle.
The Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recycling system of the present invention and alkali-washing waste liquid recycle
Method, when carrying out recycle of alkali liquor utilization, control unit monitors the alkali in lye preparation tank by NaOH content concentration sensor
The NaOH content concentration values of liquid, when the NaOH content concentration that lye prepares the lye in tank contains lower than NaOH content concentration standard
When measuring concentration values, lye is prepared pot mould alkali that the lye in tank pumps to recycle of alkali liquor equipment by centrifugal pump by control unit
Liquid accumulator tank, then be pumped into partial crystallization separating tank；Control unit controls heater and heats to the lye entered in partial crystallization separating tank,
Control unit control blender is stirred into the lye in partial crystallization separating tank；Under blender stirring action, reach the molten of saturation
NaAlO in liquid2It is constantly deposited to partial crystallization separation trench bottom, superposed low concentration NaOH passes through in flowing in solution
Between sink；It is deposited to the NaAlO of partial crystallization separation trench bottom2Into automatic centrifugal machine, under the effect of automatic centrifugal machine, entirely certainly
Centrifuge is moved by NaAlO2In mother liquor and aluminium hydroxide separated, mother liquor enter back into partial crystallization partial crystallization separating tank recycling, it is right
The aluminium hydroxide separated is collected；It repeats the above steps, batch is completed the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid and returned
It receives and utilizes.In this way, recycle of alkali liquor, which utilizes, not only realizes full automatic control, but also more importantly, realize that the energy is sharp again
With the reduction wasting of resources reduces disposal of pollutants, realizes environmental protection.The Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid of the present invention
Recycling system and alkali-washing waste liquid recoverying and utilizing method, system structure is simple, and method and step is simple, obvious technical effects, from
Fundamentally change that the consumption of aluminum profile producer die treatment process piece alkali is big, alum recovery amount is few, working environment is filthy, dangerous etc.
Problem recycles the lye after alkali cleaning, and by chemical method by lye mother liquor and aluminium ion separate, it is real
Existing aluminium hydroxide is collected and mother liquor recycling, realizes that die treatment process non-wastewater discharge, recycling aluminium ion improve economic effect
The functions such as benefit realize the Aluminum-Extruding Die alkali cleaning and recycling operation efficient, energy saving, pollution-free, safe.It is of the present invention
Recycling system and method, solve the main problem of traditional alkaline cleaner at present, economic, society, environmental benefit are very
It is considerable.
Above in conjunction with attached drawing, an exemplary description of the invention, it is clear that concrete implementation of the present invention is not by above-mentioned
The limitation of mode, as long as using the various improvement that the inventive concept and technical scheme of the present invention carry out, or not improved by this
The conception and technical scheme of invention directly apply to other occasions, are within the scope of the invention.
Claims (6)
1. a kind of the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recoverying and utilizing method, the Aluminum-Extruding Die alkali cleaning equipment alkali cleaning
Devil liquor recovery utilizes the recycling step of method are as follows: 1) control unit (2) monitors lye by NaOH content concentration sensor and prepares
The NaOH content concentration values of lye in tank (2), when the NaOH content concentration that lye prepares the lye in tank (2) is lower than NaOH
When content concn standard content concentration values, lye is prepared the lye in tank (2) by centrifugal pump and pumped to by control unit (2)
Pot mould recycle of alkali liquor slot of recycle of alkali liquor equipment, then be pumped into partial crystallization separating tank (4)；2) control unit (2) controls heater
Lye heating to entering in partial crystallization separating tank (4), control unit (2) control blender are stirred into partial crystallization separating tank (4)
Lye；3) under blender stirring action, reach the NaAlO of saturation2With lye mixed solution, the office after instilling a small amount of hydrochloric acid
Portion generates Al (OH)3More Al (OH) are adsorbed as crystal seed3, reduced by control crystallization temperature, so that Al (OH)3It is deposited to crystalline substance
Separating tank (4) bottom is analysed, superposed low concentration NaOH is by flowing to middle tank in solution；4) it is deposited to partial crystallization point
Al (OH) from slot (4) bottom3Into automatic centrifugal machine (6), under automatic centrifugal machine (6) effect, automatic centrifugal machine
(6) by Al (OH)3In mother liquor and aluminium hydroxide separated, mother liquor enter back into partial crystallization partial crystallization separating tank (4) recycling, to point
The aluminium hydroxide come is separated out to be collected；5) it repeats the above steps, batch is completed the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid and returned
It receives and utilizes.
2. the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recoverying and utilizing method according to claim 1, it is characterised in that: institute
When control unit (2) the control heater stated heats the lye entered in partial crystallization separating tank (4), heating and temperature control is 60
Between DEG C -70 DEG C of ranges.
3. the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recoverying and utilizing method according to claim 1 or 2, feature exist
In: lye is prepared pot mould that the lye in tank (2) pumps to recycle of alkali liquor equipment by centrifugal pump by the control unit (2)
When recycle of alkali liquor slot, control unit (2) controls autocontrol valve I and opens autocontrol valve II, and lye prepares the alkali in tank (1)
Liquid enters partial crystallization separating tank (4) by recovery pipe and lye transfer conduit；Control unit (2) the control blender stirring
When into lye in partial crystallization separating tank (4), control unit (2) controls autocontrol valve III and opens, and is deposited to partial crystallization separating tank
(4) NaAlO of bottom2Enter automatic centrifugal machine (6) by settling solution line.
4. the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recoverying and utilizing method according to claim 1 or 2, feature exist
In: superposed low concentration NaOH is by the way that when flowing to middle tank (5), middle tank (5) is to low in the solution
Concentration NaOH is collected, and the low concentration NaOH of collection is used to configure the bottom material of the soda-wash solution of the Aluminum-Extruding Die alkali cleaning equipment.
5. the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recoverying and utilizing method according to claim 1 or 2, feature exist
In: after being collected to the aluminium hydroxide separated, for manufacturing alum and ice crystal.
6. the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recoverying and utilizing method according to claim 1 or 2, feature exist
In: position is arranged between partial crystallization separating tank (4) and automatic centrifugal machine (6) in filtrate receiver (10), and automatic centrifugal machine (6) will
NaAlO2In mother liquor and aluminium hydroxide separated after, the mother liquor centrifugal pump of filtrate receiver (10) is by automatic centrifugal machine (6) point
The mother liquor separated out is pumped into partial crystallization separating tank (4) and recycles.
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| CN201810699937.0A CN109371409A (en) | 2018-06-29 | 2018-06-29 | A kind of the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recoverying and utilizing method |
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| CN201810699937.0A CN109371409A (en) | 2018-06-29 | 2018-06-29 | A kind of the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recoverying and utilizing method |
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| CN109371409A true CN109371409A (en) | 2019-02-22 |
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| CN201810699937.0A Pending CN109371409A (en) | 2018-06-29 | 2018-06-29 | A kind of the Aluminum-Extruding Die alkali cleaning equipment alkali-washing waste liquid recoverying and utilizing method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110314955A (en) * | 2019-06-18 | 2019-10-11 | 佛山市精业机械制造有限公司 | A kind of method and system of the Aluminum-Extruding Die alkali cleaning and waste liquid comprehensive reutilization |
| CN110670073A (en) * | 2019-09-26 | 2020-01-10 | 成都阳光铝制品有限公司 | Method for recycling alkali liquor in aluminum alloy section bar alkali etching production procedure |
| CN113247923A (en) * | 2020-03-24 | 2021-08-13 | 广东澳美铝业有限公司 | Process control method of die-stewing alkali recovery equipment |
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| CN203330168U (en) * | 2013-05-11 | 2013-12-11 | 深圳市和科达水处理设备有限公司 | Alkaline cleaning system for aluminum profile extrusion die |
| CN108048843A (en) * | 2018-01-22 | 2018-05-18 | 四会市宏创工业机械设备有限公司 | Integration stews mould alkali liquor recovery device |
| CN108160737A (en) * | 2017-12-26 | 2018-06-15 | 于沛洲 | Extruding die for aluminum shaped material alkali-washing waste liquid recovery processing technique |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203330168U (en) * | 2013-05-11 | 2013-12-11 | 深圳市和科达水处理设备有限公司 | Alkaline cleaning system for aluminum profile extrusion die |
| CN108160737A (en) * | 2017-12-26 | 2018-06-15 | 于沛洲 | Extruding die for aluminum shaped material alkali-washing waste liquid recovery processing technique |
| CN108048843A (en) * | 2018-01-22 | 2018-05-18 | 四会市宏创工业机械设备有限公司 | Integration stews mould alkali liquor recovery device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110314955A (en) * | 2019-06-18 | 2019-10-11 | 佛山市精业机械制造有限公司 | A kind of method and system of the Aluminum-Extruding Die alkali cleaning and waste liquid comprehensive reutilization |
| CN110670073A (en) * | 2019-09-26 | 2020-01-10 | 成都阳光铝制品有限公司 | Method for recycling alkali liquor in aluminum alloy section bar alkali etching production procedure |
| CN113247923A (en) * | 2020-03-24 | 2021-08-13 | 广东澳美铝业有限公司 | Process control method of die-stewing alkali recovery equipment |
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Application publication date: 20190222 |