CN109500402A - A kind of zinc metal sheet preparation method - Google Patents
A kind of zinc metal sheet preparation method Download PDFInfo
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- CN109500402A CN109500402A CN201811584743.2A CN201811584743A CN109500402A CN 109500402 A CN109500402 A CN 109500402A CN 201811584743 A CN201811584743 A CN 201811584743A CN 109500402 A CN109500402 A CN 109500402A
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- metal sheet
- zinc metal
- liquid
- rotary drum
- zinc
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/06—Metallic powder characterised by the shape of the particles
- B22F1/065—Spherical particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/043—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by ball milling
Abstract
The invention discloses a kind of zinc metal sheet preparation methods, it is the following steps are included: one, first progress ball milling, step 2 are carrying out skimming liquid operation；Step 3 is carrying out centrifuge dripping operation；Step 4 toasts drying；Step 5, polishing；Step 6, classification；Step 7, packaging and storage.Piece diameter size, the thickness of zinc metal sheet, the color of zinc metal sheet, the bulk density of zinc metal sheet prepared by the present invention meet the requirements, and entire production technology belongs to physical change process, and easy to operate, simple process, securely and reliably, the process of clean and environmental protection, preparation are simple, high-efficient.
Description
Technical field
The present invention relates to a kind of zinc metal sheet preparation methods.
Background technique
Zinc metal sheet in process of production can not piece diameter size to zinc metal sheet, the thickness of zinc metal sheet, the color of zinc metal sheet, bulk density at present
And the content of grease is all unable to control, and causes prepared zinc metal sheet Yield comparison low, quality is also poor, and being unable to satisfy needs
It asks.
Summary of the invention
The present invention provides a kind of zinc metal sheet preparation method, the piece diameter sizes for the zinc metal sheet that it is prepared, the thickness of zinc metal sheet, zinc
The color of piece, bulk density meet the requirements, and entire production technology belongs to physical change process, easy to operate, simple process, peace
Complete reliable, the process of clean and environmental protection, preparation is simple, high-efficient.
The invention adopts the following technical scheme: a kind of zinc metal sheet preparation method, it is characterized in that it the following steps are included:
Step 1, first progress ball milling
1.1 weighings: solvent naphtha 50-60 ㎏, auxiliary agent 4-6 ㎏, ball-type zinc powder 100-150 after filtering are weighed using weigher first
㎏；
1.2 chargings: first solubilizer oil is continuously added into auxiliary agent, is slowly added into ball-type zinc powder after opening blender, rear stirrer is added
Stirring 10 minutes, stirs evenly, and blender is constantly in open state from starting to be fed to pulp；
1.3 ball millings: after charging, check whether each controlled valve of ball mill is normally-open or closes, each instrument
There is fault-free, faulty please first to exclude, fault-free starts diaphragm pump, opens cooling oil pump, opens main ball mill, estimates slurry
Color and viscosity, and sample examination records, and every 2 hours changes main ball mill revolving speeds, recycles speed change, up to pulp is
Only；
1.4 pulps: after ball mill grinding reaches prescribed requirement, scraper plate experiment is done in sampling, and whether observation scraper plate is smooth, and Rough Inspection is qualified
Afterwards by slurry through diaphragm pump to turnover hopper, cleaning host roller is fuel-displaced clean to host, and cleaning oil plant arrives hopper together；
1.5 are put into clean solvent naphtha in agitator, are recycled to main ball mill through diaphragm pump, then through main ball mill to stirring
Bucket is mixed, then is gone out into turnover hopper, so on circulate until cleaning up；
The maintenance of 1.6 grinding machines: periodically family's butter at grinding machine bearing adds coolant liquid, and make a record in pressurized tank；
Step 2 is carrying out skimming liquid operation
2.1 slash liquid prepare: getting out clean slash liquid equipment, open motor, liquid skimming device is made to be in normal operating conditions, skim liquid
Pipe, which leaves, skims liquid rotary drum；
2.2 chargings: being pumped into slurry, pay attention to slurry cannot being allowed to overflow, and stops charging after mashing pump to designated position, stops 1-2 points
Zhong Hou starts to skim liquid operation；
2.3 slash liquid: will skim liquid pipe to moving inside rotary drum, clear liquid is removed rotary drum, accesses receiver, then will skim liquid pipe and be moved back to
To the position for leaving slash liquid rotary drum；
2.4 repeat 2.2 and 2.3 operations, until filling solid material in rotary drum, or install feed slurry；
2.5 dischargings: filling solid material in rotary drum, or after installing feed slurry, further skims liquid, then will skim liquid equipment motor
It shuts down, and rotary drum is waited to stop operating, then carry out discharging.The wet cake drawn off, moves to centrigugal swing dryer, enters in next step
Process is dried, the turnover barrel for containing wet cake must clean, no-sundries heavy record；
Step 3 is carrying out centrifuge dripping operation
After 3.1 install filter cloth, it is reloaded into wet cake, it is almost the same for the filter cake humidity that ensures to dry every time, in operation to the greatest extent
Amount accomplishes that position of the wet cake in rotary drum is in equilibrium state, is then turned on motor, as the rotation of discovery filter cake is uneven after being switched on
Weighing apparatus must shut down and be filled to balance again, then be then turned on motor drying, and the spin-drying operation time is 4 hours；
It is shut down after the completion of 3.2 dryings, after determining that centrifugal reel stops operating, then unloads the filter cake dried, weighing record；
3.3 carry out relative recording and plant maintenance record；
Step 4 toasts drying
Wet cake rough segmentation dissipates after 4.1 dryings, crosses from dispersion machine sieve and is sieved to baking oven pallet, baking oven pallet is put into baking oven, it is desirable that
To 300 ㎏ together entering to dry case, each baking oven pallet about fills 5 kilograms of zinc metal sheets, and baking oven pressure is maintained at -0.095MPA, it is desirable that dries
Dry duration 8 hours, Temperature fall opened oven door to 79 degree of air drafts, 35 degree or so；
Zinc metal sheet after 4.2 subdivision drying, estimates zinc metal sheet color and aridity, aridity is detected as unclamping nature after grabbing one with hand
Dispersion is not united, and is dried successfully, weighing record；
4.3 carry out relative recording and plant maintenance record；
Step 5, polishing
Hog shred charging, is weighed with measurer in workshop, every 4.5 ㎏ steel ball of barreled, 2 ㎏ zinc metal sheets, 20g stearic acid, it is desirable that dispersion 4 is small
When；
Step 6, classification
Steel ball, stearic acid, zinc metal sheet are separated through sieve, and zinc metal sheet is sieved into 325 mesh graders；
Step 7, packaging and storage
Plastic film bag is placed in metal bucket by operative employee when 7.1 packaging, and pail pack is placed below sieving machine discharge port and is contained
Zinc powder is sealed after weighing and is covered, and is carried out cleaning treatment to pail pack and kept metal bucket appearance clean and tidy；
7.2 storages can must be carried out after the assay was approved, and the project of inspection includes: piece diameter size, the thickness of zinc metal sheet, zinc metal sheet
Color, bulk density and fat content, pail pack will post mark before being put in storage, and indicate product batch number；
Inspector fills in record completely before 7.3 product warehousings, records triplicate portion and reserves for one's own use, portion friendship workshop director, and one
Foundation of part friendship warehouse as product qualification access；
Operative employee should assist warehouse keeper to carry out product warehousing work when 7.4 storage；
Equipment cleaning and workshop condition sanitary work are carried out at the end of 7.5 productions daily.
The revolving speed of step 1 main ball mill of the present invention is the rev/min of 400 rev/min -700.
6-7 microns of average grain diameter of spherical zinc powder, maximum particle diameter≤15 micron in step 1 of the present invention.
Solvent naphtha is solvent for extraction in step 1 of the present invention, and solvent naphtha is injected agitator with oil well pump by solvent for extraction
It is stirred obtained.
Auxiliary agent is solid forms grinding aid or liquid form grinding aid, the solid forms grinding aid in step 1 of the present invention
Agent is carbon black, gypsum, flyash or aquadag, and the liquid form grinding aid is ethylene glycol, propylene glycol or polyacrylic acid.
The aperture of filter cloth is 400 mesh in step 3 of the present invention.
The invention has the following advantages: after using above technical scheme, the piece diameter of the zinc metal sheet of its preparation of the present invention
Size, the thickness of zinc metal sheet, the color of zinc metal sheet, bulk density meet the requirements, and the process prepared is simple, high-efficient.The present invention is whole
A production technology belongs to physical change process, easy to operate, simple process, securely and reliably, clean and environmental protection.
Detailed description of the invention
Fig. 1 is flow chart of the invention.
Specific embodiment
In Fig. 1, the present invention provides a kind of zinc metal sheet preparation method, it the following steps are included:
Step 1, first progress ball milling
1.1 weighings: weighing 50 ㎏ of solvent naphtha after filtering, 4 ㎏ of auxiliary agent using weigher first, and auxiliary agent suitably increases by the 6% of major ingredient
Subtracting, 100 ㎏ of ball-type zinc powder, 6 microns of the average grain diameter of spherical zinc powder, maximum particle diameter≤15 micron, solvent naphtha is solvent for extraction,
Solvent for extraction with oil well pump by solvent naphtha injection agitator be stirred it is obtained, auxiliary agent be solid forms grinding aid, solid shape
State grinding aid is carbon black, gypsum, flyash or aquadag；
1.2 chargings: first solubilizer oil is continuously added into auxiliary agent, is slowly added into ball-type zinc powder after opening blender, rear stirrer is added
Stirring 10 minutes, stirs evenly, and blender is constantly in open state from starting to be fed to pulp；
1.3 ball millings: after charging, check whether each controlled valve of ball mill is normally-open or closes, each instrument
There is fault-free, faulty please first to exclude, fault-free starts diaphragm pump, opens cooling oil pump, opens main ball mill, estimates slurry
Color and viscosity, and sample examination records, and every 2 hours changes main ball mill revolving speeds, the revolving speed of main ball mill was 400
Rev/min recycles speed change, until pulp；
1.4 pulps: after ball mill grinding reaches prescribed requirement, scraper plate experiment is done in sampling, and whether observation scraper plate is smooth, and Rough Inspection is qualified
Afterwards by slurry through diaphragm pump to turnover hopper, cleaning host roller is fuel-displaced clean to host, and cleaning oil plant arrives hopper together；
1.5 are put into clean solvent naphtha in agitator, are recycled to main ball mill through diaphragm pump, then through main ball mill to stirring
Bucket is mixed, then is gone out into turnover hopper, so on circulate until cleaning up；
The maintenance of 1.6 grinding machines: periodically family's butter at grinding machine bearing adds coolant liquid, and make a record in pressurized tank；
Step 2 is carrying out skimming liquid operation
2.1 slash liquid prepare: getting out clean slash liquid equipment, open motor, liquid skimming device is made to be in normal operating conditions, skim liquid
Pipe, which leaves, skims liquid rotary drum；
2.2 chargings: being pumped into slurry, pay attention to slurry cannot being allowed to overflow, and stops charging after mashing pump to designated position, stops 1 minute
Afterwards, start to skim liquid operation；
2.3 slash liquid: will skim liquid pipe to moving inside rotary drum, clear liquid is removed rotary drum, accesses receiver, then will skim liquid pipe and be moved back to
To the position for leaving slash liquid rotary drum；
2.4 repeat 2.2 and 2.3 operations, until filling solid material in rotary drum, or install feed slurry；
2.5 dischargings: filling solid material in rotary drum, or after installing feed slurry, further skims liquid, then will skim liquid equipment motor
It shuts down, and rotary drum is waited to stop operating, then carry out discharging.The wet cake drawn off, moves to centrigugal swing dryer, enters in next step
Process is dried, the turnover barrel for containing wet cake must clean, no-sundries heavy record；
Step 3 is carrying out centrifuge dripping operation
After 3.1 install filter cloth, the aperture of filter cloth is 400 mesh, wet cake is reloaded into, for the filter cake humidity base for ensuring to dry every time
This is consistent, accomplishes that position of the wet cake in rotary drum is in equilibrium state as far as possible in operation, is then turned on motor, after being switched on
It was found that filter cake rotation imbalance, must shut down and be filled to balance again, it is then then turned on motor drying, the spin-drying operation time is 4 hours；
It is shut down after the completion of 3.2 dryings, after determining that centrifugal reel stops operating, then unloads the filter cake dried, weighing record；
3.3 carry out relative recording and plant maintenance record；
Step 4 toasts drying
Wet cake rough segmentation dissipates after 4.1 dryings, crosses from dispersion machine sieve and is sieved to baking oven pallet, baking oven pallet is put into baking oven, it is desirable that
To 300 ㎏ together entering to dry case, each baking oven pallet about fills 5 kilograms of zinc metal sheets, and baking oven pressure is maintained at -0.095MPA, it is desirable that dries
Dry duration 8 hours, Temperature fall opened oven door to 79 degree of air drafts, 35 degree or so；
Zinc metal sheet after 4.2 subdivision drying, estimates zinc metal sheet color and aridity, aridity is detected as unclamping nature after grabbing one with hand
Dispersion is not united, and is dried successfully, weighing record；
4.3 carry out relative recording and plant maintenance record；
Step 5, polishing
Hog shred charging, is weighed with measurer in workshop, every 4.5 ㎏ steel ball of barreled, 2 ㎏ zinc metal sheets, 20g stearic acid, it is desirable that dispersion 4 is small
When；
Step 6, classification
Steel ball, stearic acid, zinc metal sheet are separated through sieve, and zinc metal sheet is sieved into 325 mesh graders；
Step 7, packaging and storage
Plastic film bag is placed in metal bucket by operative employee when 7.1 packaging, and pail pack is placed below sieving machine discharge port and is contained
Zinc powder is sealed after weighing and is covered, and is carried out cleaning treatment to pail pack and kept metal bucket appearance clean and tidy；
7.2 storages can must be carried out after the assay was approved, and the project of inspection includes: piece diameter size, the thickness of zinc metal sheet, zinc metal sheet
Color, bulk density and fat content, pail pack will post mark before being put in storage, and indicate product batch number；
Inspector fills in record completely before 7.3 product warehousings, records triplicate portion and reserves for one's own use, portion friendship workshop director, and one
Foundation of part friendship warehouse as product qualification access；
Operative employee should assist warehouse keeper to carry out product warehousing work when 7.4 storage；
Equipment cleaning and workshop condition sanitary work are carried out at the end of 7.5 productions daily.
Embodiment two, in Fig. 1, the present invention provides a kind of zinc metal sheet preparation method, it the following steps are included:
Step 1, first progress ball milling
1.1 weighings: weighing 60 ㎏ of solvent naphtha after filtering, 6 ㎏ of auxiliary agent using weigher first, and auxiliary agent suitably increases by the 6% of major ingredient
Subtracting, 150 ㎏ of ball-type zinc powder, 7 microns of the average grain diameter of spherical zinc powder, maximum particle diameter≤15 micron, solvent naphtha is solvent for extraction,
Solvent for extraction with oil well pump by solvent naphtha injection agitator be stirred it is obtained, auxiliary agent be liquid form grinding aid, it is described
Liquid form grinding aid is ethylene glycol, propylene glycol or polyacrylic acid.
1.2 chargings: first solubilizer oil is continuously added into auxiliary agent, is slowly added into ball-type zinc powder after opening blender, stirs after addition
It mixes machine to stir 10 minutes, stir evenly, blender is constantly in open state from starting to be fed to pulp；
1.3 ball millings: after charging, check whether each controlled valve of ball mill is normally-open or closes, each instrument
There is fault-free, faulty please first to exclude, fault-free starts diaphragm pump, opens cooling oil pump, opens main ball mill, estimates slurry
Color and viscosity, and sample examination records, and every 2 hours changes main ball mill revolving speeds, the revolving speed of main ball mill was 700
Rev/min recycles speed change, until pulp；
1.4 pulps: after ball mill grinding reaches prescribed requirement, scraper plate experiment is done in sampling, and whether observation scraper plate is smooth, and Rough Inspection is qualified
Afterwards by slurry through diaphragm pump to turnover hopper, cleaning host roller is fuel-displaced clean to host, and cleaning oil plant arrives hopper together；
1.5 are put into clean solvent naphtha in agitator, are recycled to main ball mill through diaphragm pump, then through main ball mill to stirring
Bucket is mixed, then is gone out into turnover hopper, so on circulate until cleaning up；
The maintenance of 1.6 grinding machines: periodically family's butter at grinding machine bearing adds coolant liquid, and make a record in pressurized tank；
Step 2 is carrying out skimming liquid operation
2.1 slash liquid prepare: getting out clean slash liquid equipment, open motor, liquid skimming device is made to be in normal operating conditions, skim liquid
Pipe, which leaves, skims liquid rotary drum；
2.2 chargings: being pumped into slurry, pay attention to slurry cannot being allowed to overflow, and stops charging after mashing pump to designated position, stops 2 minutes
Afterwards, start to skim liquid operation；
2.3 slash liquid: will skim liquid pipe to moving inside rotary drum, clear liquid is removed rotary drum, accesses receiver, then will skim liquid pipe and be moved back to
To the position for leaving slash liquid rotary drum；
2.4 repeat 2.2 and 2.3 operations, until filling solid material in rotary drum, or install feed slurry；
2.5 dischargings: filling solid material in rotary drum, or after installing feed slurry, further skims liquid, then will skim liquid equipment motor
It shuts down, and rotary drum is waited to stop operating, then carry out discharging.The wet cake drawn off, moves to centrigugal swing dryer, enters in next step
Process is dried, the turnover barrel for containing wet cake must clean, no-sundries heavy record；
Step 3 is carrying out centrifuge dripping operation
After 3.1 install filter cloth, the aperture of filter cloth is 400 mesh, wet cake is reloaded into, for the filter cake humidity base for ensuring to dry every time
This is consistent, accomplishes that position of the wet cake in rotary drum is in equilibrium state as far as possible in operation, is then turned on motor, after being switched on
It was found that filter cake rotation imbalance, must shut down and be filled to balance again, it is then then turned on motor drying, the spin-drying operation time is 4 hours；
It is shut down after the completion of 3.2 dryings, after determining that centrifugal reel stops operating, then unloads the filter cake dried, weighing record；
3.3 carry out relative recording and plant maintenance record；
Step 4 toasts drying
Wet cake rough segmentation dissipates after 4.1 dryings, crosses from dispersion machine sieve and is sieved to baking oven pallet, baking oven pallet is put into baking oven, it is desirable that
To 300 ㎏ together entering to dry case, each baking oven pallet about fills 5 kilograms of zinc metal sheets, and baking oven pressure is maintained at -0.095MPA, it is desirable that dries
Dry duration 8 hours, Temperature fall opened oven door to 79 degree of air drafts, 35 degree or so；
Zinc metal sheet after 4.2 subdivision drying, estimates zinc metal sheet color and aridity, aridity is detected as unclamping nature after grabbing one with hand
Dispersion is not united, and is dried successfully, weighing record；
4.3 carry out relative recording and plant maintenance record；
Step 5, polishing
Hog shred charging, is weighed with measurer in workshop, every 4.5 ㎏ steel ball of barreled, 2 ㎏ zinc metal sheets, 20g stearic acid, it is desirable that dispersion 4 is small
When；
Step 6, classification
Steel ball, stearic acid, zinc metal sheet are separated through sieve, and zinc metal sheet is sieved into 325 mesh graders；
Step 7, packaging and storage
Plastic film bag is placed in metal bucket by operative employee when 7.1 packaging, and pail pack is placed below sieving machine discharge port and is contained
Zinc powder is sealed after weighing and is covered, and is carried out cleaning treatment to pail pack and kept metal bucket appearance clean and tidy；
7.2 storages can must be carried out after the assay was approved, and the project of inspection includes: piece diameter size, the thickness of zinc metal sheet, zinc metal sheet
Color, bulk density and fat content, pail pack will post mark before being put in storage, and indicate product batch number；
Inspector fills in record completely before 7.3 product warehousings, records triplicate portion and reserves for one's own use, portion friendship workshop director, and one
Foundation of part friendship warehouse as product qualification access；
Operative employee should assist warehouse keeper to carry out product warehousing work when 7.4 storage；
Equipment cleaning and workshop condition sanitary work are carried out at the end of 7.5 productions daily.
Claims (8)
1. a kind of zinc metal sheet preparation method, it is characterized in that it the following steps are included:
Step 1, first progress ball milling
1.1 weighings: solvent naphtha 50-60 ㎏, auxiliary agent 4-6 ㎏, ball-type zinc powder 100-150 after filtering are weighed using weigher first
㎏；
1.2 chargings: first solubilizer oil is continuously added into auxiliary agent, is slowly added into ball-type zinc powder after opening blender, rear stirrer is added
Stirring 10 minutes, stirs evenly, and blender is constantly in open state from starting to be fed to pulp；
1.3 ball millings: after charging, check whether each controlled valve of ball mill is normally-open or closes, each instrument
There is fault-free, faulty please first to exclude, fault-free starts diaphragm pump, opens cooling oil pump, opens main ball mill, estimates slurry
Color and viscosity, and sample examination records, and every 2 hours changes main ball mill revolving speeds, recycles speed change, up to pulp is
Only；
1.4 pulps: after ball mill grinding reaches prescribed requirement, scraper plate experiment is done in sampling, and whether observation scraper plate is smooth, and Rough Inspection is qualified
Afterwards by slurry through diaphragm pump to turnover hopper, cleaning host roller is fuel-displaced clean to host, and cleaning oil plant arrives hopper together；
1.5 are put into clean solvent naphtha in agitator, are recycled to main ball mill through diaphragm pump, then through main ball mill to stirring
Bucket is mixed, then is gone out into turnover hopper, so on circulate until cleaning up；
The maintenance of 1.6 grinding machines: periodically family's butter at grinding machine bearing adds coolant liquid, and make a record in pressurized tank；
Step 2 is carrying out skimming liquid operation
2.1 slash liquid prepare: getting out clean slash liquid equipment, open motor, liquid skimming device is made to be in normal operating conditions, skim liquid
Pipe, which leaves, skims liquid rotary drum；
2.2 chargings: being pumped into slurry, pay attention to slurry cannot being allowed to overflow, and stops charging after mashing pump to designated position, stops 1-2 points
Zhong Hou starts to skim liquid operation；
2.3 slash liquid: will skim liquid pipe to moving inside rotary drum, clear liquid is removed rotary drum, accesses receiver, then will skim liquid pipe and be moved back to
To the position for leaving slash liquid rotary drum；
2.4 repeat 2.2 and 2.3 operations, until filling solid material in rotary drum, or install feed slurry；
2.5 dischargings: filling solid material in rotary drum, or after installing feed slurry, further skims liquid, then will skim liquid equipment motor
It shuts down, and rotary drum is waited to stop operating, then carry out discharging；
The wet cake drawn off, moves to centrigugal swing dryer, enters drying process in next step, the turnover barrel for containing wet cake is necessary
Completely, the heavy record of no-sundries；
Step 3 is carrying out centrifuge dripping operation
After 3.1 install filter cloth, it is reloaded into wet cake, it is almost the same for the filter cake humidity that ensures to dry every time, in operation to the greatest extent
Amount accomplishes that position of the wet cake in rotary drum is in equilibrium state, is then turned on motor, as the rotation of discovery filter cake is uneven after being switched on
Weighing apparatus must shut down and be filled to balance again, then be then turned on motor drying, and the spin-drying operation time is 4 hours；
It is shut down after the completion of 3.2 dryings, after determining that centrifugal reel stops operating, then unloads the filter cake dried, weighing record；
3.3 carry out relative recording and plant maintenance record；
Step 4 toasts drying
Wet cake rough segmentation dissipates after 4.1 dryings, crosses from dispersion machine sieve and is sieved to baking oven pallet, baking oven pallet is put into baking oven, it is desirable that
To 300 ㎏ together entering to dry case, each baking oven pallet about fills 5 kilograms of zinc metal sheets, and baking oven pressure is maintained at -0.095MPA, it is desirable that dries
Dry duration 8 hours, Temperature fall opened oven door to 79 degree of air drafts, 35 degree or so；
Zinc metal sheet after 4.2 subdivision drying, estimates zinc metal sheet color and aridity, aridity is detected as unclamping nature after grabbing one with hand
Dispersion is not united, and is dried successfully, weighing record；
4.3 carry out relative recording and plant maintenance record；
Step 5, polishing
Hog shred charging, is weighed with measurer in workshop, every 4.5 ㎏ steel ball of barreled, 2 ㎏ zinc metal sheets, 20g stearic acid, it is desirable that dispersion 4 is small
When；
Step 6, classification
Steel ball, stearic acid, zinc metal sheet are separated through sieve, and zinc metal sheet is sieved into 325 mesh graders；
Step 7, packaging and storage
Plastic film bag is placed in metal bucket by operative employee when 7.1 packaging, and pail pack is placed below sieving machine discharge port and is contained
Zinc powder is sealed after weighing and is covered, and is carried out cleaning treatment to pail pack and kept metal bucket appearance clean and tidy；
7.2 storages can must be carried out after the assay was approved, and the project of inspection includes: piece diameter size, the thickness of zinc metal sheet, zinc metal sheet
Color, bulk density and fat content, pail pack will post mark before being put in storage, and indicate product batch number；
Inspector fills in record completely before 7.3 product warehousings, records triplicate portion and reserves for one's own use, portion friendship workshop director, and one
Foundation of part friendship warehouse as product qualification access；
Operative employee should assist warehouse keeper to carry out product warehousing work when 7.4 storage；
Equipment cleaning and workshop condition sanitary work are carried out at the end of 7.5 productions daily.
2. zinc metal sheet preparation method according to claim 1, it is characterized in that the revolving speed of step 1 main ball mill is 400
700 rev/min of rev/min-.
3. zinc metal sheet preparation method according to claim 1, it is characterized in that the average grain diameter 6-7 of step 1 spherical shape zinc powder
Micron, maximum particle diameter≤15 micron.
4. zinc metal sheet preparation method according to claim 1, it is characterized in that solvent naphtha is solvent for extraction in step 1,
Solvent naphtha injection agitator is stirred obtained by solvent for extraction with oil well pump.
5. zinc metal sheet preparation method according to claim 1, it is characterized in that auxiliary agent is solid forms grinding aid in step 1
Agent or liquid form grinding aid.
6. zinc metal sheet preparation method according to claim 1, it is characterized in that the solid forms grinding aid be carbon black,
Gypsum, flyash or aquadag.
7. zinc metal sheet preparation method according to claim 1, it is characterized in that the liquid form grinding aid is second two
Alcohol, propylene glycol or polyacrylic acid.
8. zinc metal sheet preparation method according to claim 1, it is characterized in that the aperture of filter cloth is in the step three
400 mesh.
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| CN201811584743.2A CN109500402A (en) | 2018-12-25 | 2018-12-25 | A kind of zinc metal sheet preparation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811584743.2A CN109500402A (en) | 2018-12-25 | 2018-12-25 | A kind of zinc metal sheet preparation method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1456407A (en) * | 2003-05-28 | 2003-11-19 | 肖骁 | Flake zinc and zinc-aluminium alloy powder wet method producing process |
| CN1513628A (en) * | 2003-05-21 | 2004-07-21 | 昆明理工恒达科技有限公司 | Production method of scale shpared zinc powler |
| JP2005076058A (en) * | 2003-08-29 | 2005-03-24 | Fukuda Metal Foil & Powder Co Ltd | Method for manufacturing flaky metal powder |
| CN103341632A (en) * | 2013-07-08 | 2013-10-09 | 昆明理工大学 | Technology for preparing flake zinc powder through dry method |
| CN104815987A (en) * | 2015-05-07 | 2015-08-05 | 昆明冶金研究院 | Flaky zinc powder preparation method |
-
2018
- 2018-12-25 CN CN201811584743.2A patent/CN109500402A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1513628A (en) * | 2003-05-21 | 2004-07-21 | 昆明理工恒达科技有限公司 | Production method of scale shpared zinc powler |
| CN1456407A (en) * | 2003-05-28 | 2003-11-19 | 肖骁 | Flake zinc and zinc-aluminium alloy powder wet method producing process |
| JP2005076058A (en) * | 2003-08-29 | 2005-03-24 | Fukuda Metal Foil & Powder Co Ltd | Method for manufacturing flaky metal powder |
| CN103341632A (en) * | 2013-07-08 | 2013-10-09 | 昆明理工大学 | Technology for preparing flake zinc powder through dry method |
| CN104815987A (en) * | 2015-05-07 | 2015-08-05 | 昆明冶金研究院 | Flaky zinc powder preparation method |
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Application publication date: 20190322 |