CN107986653A - A kind of continuous preparation system of the walking-beam kiln of alpha gypsum powder and application method - Google Patents
A kind of continuous preparation system of the walking-beam kiln of alpha gypsum powder and application method Download PDFInfo
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- CN107986653A CN107986653A CN201711123495.7A CN201711123495A CN107986653A CN 107986653 A CN107986653 A CN 107986653A CN 201711123495 A CN201711123495 A CN 201711123495A CN 107986653 A CN107986653 A CN 107986653A
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- tunnel oven
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B11/00—Calcium sulfate cements
- C04B11/26—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke
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- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Tunnel Furnaces (AREA)
Abstract
The invention discloses a kind of continuous preparation system of walking-beam kiln of alpha gypsum powder and its application method, the system includes rotation crystallization, the small car team of stepping, tunnel oven, hydraulic pressure stepper, traversing crane and return trajectory, tunnel oven includes steel structure casing, furnace body, inlet and outlet insulation upright lift gate, heating system, temperature control detecting system, ground rail and low voltage electric power system, heating system heats tunnel oven and rotation crystallization, the small car team of stepping is both placed on ground rail, and the operating for realizing rotation crystallization by low voltage electric power system is powered；Hydraulic pressure stepper promotes moving cart to realize process stepping, and traversing crane is arranged on the center both ends for returning to tunnel and tunnel oven；Rotation crystallization and moving cart after discharging are hoisted to by traversing crane returns to tunnel return, then hangs the feeding station for being back to tunnel oven.The system can realize that the dry method dynamic of industry by-product gypsum raw material is steam-cured, and production technology is continuously simple, and the cycle is short, and product quality is high, and yield is big.
Description
Technical field
The present invention relates to land plaster technical field of processing equipment, the walking-beam kiln for particularly relating to a kind of alpha gypsum powder connects
Continuous preparation system and application method.
Background technology
α type gypsum is exactly alpha semi-hydrated gypsum, is a kind of good cementitious material, is widely used in mould, precision system
Make, the field such as construction material.At present, the production technology of alpha type high-strength gypsum powder is mainly " steam-cured method " technique, it is by block stone
Cream carries out static treatment in a steam ambient；Another " liquid phase method " technique, powder gypsum raw material needs plus water slurrying, heating,
Finished product α type gypsum could be generated by turning the process such as crystalline substance, dehydration, drying, ageing, grinding, two kinds of complex technical process, equipment is various,
High energy consumption, production cycle length is of high cost, is not suitable for high-strength for raw material heavy industrialization preparation α types using industry by-product gypsum
The production of gypsum.
Therefore, how a kind of continuous preparation system using powdery industry by-product gypsum dry production alpha gypsum powder is provided, it is real
Now efficient, energy saving, low-cost industrial production model, is those skilled in the art's urgent problem to be solved.
The content of the invention
In view of this, it is an object of the invention to propose a kind of continuous preparation system of walking-beam kiln of alpha gypsum powder and
Its application method, the continuous preparation system of the walking-beam kiln can realize that the dry method dynamic of industry by-product gypsum raw material is steam-cured, one
Machine multipotency, production technology is continuously simple, and the cycle is short, and product quality is higher, and yield is larger.
Based on above-mentioned purpose, a kind of continuous preparation system of the walking-beam kiln of alpha gypsum powder provided by the invention, including rotation
Turn crystallization, the small car team of stepping, tunnel oven, hydraulic pressure stepper, traversing crane and return trajectory, the tunnel oven is semi-enclosed
Heat source system, including steel structure casing, heat-insulating heat-preserving material build by laying bricks or stones furnace body, inlet and outlet insulation upright lift gate, heating system,
Temperature control detecting system, ground rail and low voltage electric power system, the length direction of the tunnel oven are separated into three by upright lift gate
Operation door is additionally provided with the side wall of a room, respectively firing chamber, thermostatic chamber, drying chamber, the firing chamber and the drying chamber；
The heating system of the tunnel oven heats the tunnel oven and the rotation crystallization, and the small car team of stepping is by more
Moving cart forms, and is both provided with the rotation crystallization in each moving cart, and each moving cart be both placed in it is described
On ground rail, the operating for realizing the rotation crystallization by the low voltage electric power system is powered；The moving cart passes through
The thermal-insulating sealing with the tunnel oven is realized in labyrinth seal, and the hydraulic pressure stepper promotes the moving cart by bottom collision block
Realize process stepping, the traversing crane is arranged on the center both ends of the return tunnel and the tunnel oven；The return rail
Road is the process cycles passage of the moving cart, and the rotation crystallization and moving cart after the completion of discharging are traversing by wherein one
Crane is hoisted to the return tunnel and returns, then the feeding station for being back to the tunnel oven is hung by another traversing crane.
In the present invention, it is preferred to, the moving cart is equipped with bottom collision block, is realized and connected by bottom collision block, the
The bottom collision block contact hydraulic pressure stepper push rod of one moving cart, the stepping is promoted by hydraulic pressure stepper according to the process time
The stepping of small car team；The outside of the drying chamber is provided with dust pelletizing system and gas exhaust piping, when rotation crystallization enters the baking
After dry chamber, connect the gas exhaust piping, Open valve carries out pressure release and drying is vented, the high humidity gas containing land plaster of discharge into
Enter the dust pelletizing system and carry out dedusting, the gas exhaust piping is detachable.
In the present invention, it is preferred to, the system also includes raw material feed system, discharge system, dust pelletizing system, improved grinder
Machine, aging bunker and packing machine, the raw material feed system include the equipment such as the preparation, metering, conveying of raw material, the discharge system
It is connected by conveying device with the modified grinding machine, the modified grinding machine receives the material of conveying device transmission, the aging bunker
The material of the modified grinding machine processing is received, the packing machine receives the material of the aging bunker and packed.
In the present invention, it is preferred to, the rotation crystallization is the cylindrical horizontal pressure vessel of a special shape, by two
Group support device is erected in moving cart, and rotation, circle are driven by the motor installed in moving cart bottom by transmission device
Cylinder is internally provided with helical blade and stirring lifting blade beneficial to input and output material, and cylinder both ends have feed arrangement and discharging to fill
Put, the feed arrangement is provided with swivel joint and valve, realizes exhaust and pressure release in the kiln body of the rotation crystallization；Institute
State drawing mechanism and be provided with the exhaust passage for exhaust and the tapping channel for discharging；Outside the kiln body of the rotation crystallization
Portion is additionally provided with rapping apparatus, hits kiln body outer wall, causes vibration, reduce the viscous wall of material.
Further, α stones are prepared using the continuous preparation system of walking-beam kiln present invention also offers a kind of
The method of cream powder, comprises the following steps：
(1) raw material stocks up through feed system, measures, crystal modifier is mixed evenly, and rotation knot is sent into by screw conveyor
Brilliant kiln；
(2) rotate crystallization charging after the completion of, hydraulic pressure stepper promote the small car team of stepping on rotation crystallization successively into
Enter the firing chamber of tunnel oven, carry out heating exhaust, enter thermostatic chamber progress constant temperature and pressure turn crystalline substance after reaching certain condition, turn brilliant complete
Enter drying chamber into rear, connect gas exhaust piping and dust pelletizing system first, Open valve carries out pressure release and drying is vented, and discharge contains
The high humidity gas of land plaster enters deduster and carries out dedusting；
(3) complete baking operation rotation crystallization with moving cart remove tunnel oven, carry out discharging, material draw off after by
Conveying device, which cools down and is delivered to modified grinding machine, is modified grinding, is then sent to aging bunker, finally enters finished bin progress
Packaging；
(4) moving cart after the completion of discharging and rotation crystallization are hoisted to by a wherein traversing crane returns on tunnel
Return, then the feeding station for being back to tunnel oven is hung by another traversing crane, continue the preparation of alpha gypsum powder.
Compared with prior art, the invention has the advantages that：
The continuous preparation system of walking-beam kiln of the present invention can realize the continuity of production technology, the transhipment for reducing and expecting
Operation, process procedure is few, has the characteristics of production cycle is shorter, quality assurance, can save labour to a greater degree, effectively drop
The low manipulation strength of labourer, the thermal efficiency is high, can reduce the heat waste in alpha gypsum powder production.
Brief description of the drawings
Fig. 1 is a kind of basic knot of the continuous preparation system of walking-beam kiln of alpha gypsum powder described in the embodiment of the present invention
Structure；
Fig. 2 is a kind of basic structure of rotation crystallization described in the embodiment of the present invention.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.
Fig. 1 is a kind of basic knot of the continuous preparation system of walking-beam kiln of alpha gypsum powder described in the embodiment of the present invention
Structure；As shown in Figure 1, a kind of continuous preparation system of walking-beam kiln of alpha gypsum powder provided by the invention, including rotation crystallization
1st, the small car team 2 of stepping, tunnel oven 3, hydraulic pressure stepper 4, traversing crane 5 and return trajectory 6, the tunnel oven 3 are semi-enclosed
Heat source system, including steel structure casing, heat-insulating heat-preserving material build by laying bricks or stones furnace body, inlet and outlet insulation upright lift gate 31, heat supply system
System 32, temperature control detecting system 33, ground rail 34 and low voltage electric power system 35, the length direction of the tunnel oven 3 is by vertically rising
Drop door 31 is separated into three rooms, is respectively firing chamber 36, thermostatic chamber 37, drying chamber 38, the firing chamber 36 and the drying chamber
Operation door is additionally provided with 38 side wall；The heating system 32 of the tunnel oven 3 is to the tunnel oven 3 and the rotation crystallization
1 is heated, and the small car team 2 of stepping is made of more moving carts, and the rotation knot is both provided with each moving cart
Brilliant kiln 1, and each moving cart is both placed on the ground rail 34, passes through the real 35 existing rotation of the low voltage electric power system
Turn the operating power supply of crystallization 1；The moving cart realizes the thermal-insulating sealing with the tunnel oven 3 by labyrinth seal, described
Hydraulic pressure stepper 4 promotes the moving cart to realize process stepping by bottom collision block, and the traversing crane 5 is arranged on described return
Go back to the center both ends of tunnel 6 and the tunnel oven 3；The return trajectory 6 is the process cycles passage of the moving cart, discharging
After the completion of rotation crystallization 1 and moving cart by wherein one traversing crane 5 be hoisted to it is described return tunnel 6 return, then by
Another traversing crane 5 hangs the feeding station for being back to the tunnel oven 3.
In embodiments of the present invention, the operation door of 300 × 400mm is provided with the side wall of firing chamber 36 and drying chamber 38, with
Easy to rotate the switch of 1 exhaust pressure relief valve of crystallization.
Preferably, the moving cart is equipped with bottom collision block, is realized and connected by bottom collision block, first moving cart
Bottom collision block contact hydraulic pressure stepper 4 push rod, promote the small car team 2 of stepping according to the process time by hydraulic pressure stepper 4
Stepping；Preferably, the small car team 2 of stepping is made of 13 moving carts.
The outside of the drying chamber 38 is provided with dust pelletizing system 7 and gas exhaust piping 8, when rotation crystallization 1 enters the baking
After dry chamber 38, the gas exhaust piping 8 is connected, Open valve carries out pressure release and drying is vented, the high moisture containing land plaster of discharge
Body enters the dust pelletizing system 7 and carries out dedusting, and the gas exhaust piping 8 is detachable.
The system also includes raw material feed system 9, discharge system 10, dust pelletizing system 7, modified grinding machine 11, aging bunker 12
With packing machine 13, the raw material feed system 9 includes equipment, the discharge systems 10 such as the preparation, metering, conveying of raw material and passes through
Conveying device is connected with the modified grinding machine 11, and the material progress grinding that the modified grinding machine 11 receives conveying device transmission changes
Property, the aging bunker 12 receive the material after 11 grinding of modified grinding machine, and the packing machine 13 receives the aging bunker 12
Material is simultaneously packed.
The modified grinding machine 11 can be ball mill or roller mill, by particle is larger or non-uniform α gypsum grind it is uniform, into
Row grinding is modified.The aging bunker 12 is used for carrying out ripening, the number of aging bunker 12 by the modified material of grinding
Can be multiple.The packing machine 13 is used for the inner wrapping that the material after ripening is directly packaged into constant weight.
The raw material feed system 9 includes the equipment such as the preparation, metering, conveying of raw material, specifically, belt feeder can be used to use
In feeding, the material transmitted using weigh-hatching plant to belt feeder is weighed, using mixer by the material after weighing with turning crystalline substance
Agent solution is stirred mixing, and mixed material is sent into the rotation crystallization 1 using screw conveyor.Preferably, institute
It is Shaftless screw conveyor to state screw conveyor.
The rotation crystallization 1 is the cylindrical horizontal pressure vessel of a special shape, is set up by two groups of support device 1a
In moving cart, rotation is driven by the motor installed in moving cart bottom by transmission device 1b, cylinder interior is provided with
Helical blade and stirring lifting blade, helical blade beneficial to input and output material can be such that the material F.F. of cylinder interior goes out soon, stir
Material upset, stirring can be made by mixing lifting blade；Cylinder both ends have feed arrangement 1c and drawing mechanism 1d, the feed arrangement 1c to set
Swivel joint and valve are equipped with, realizes exhaust and pressure release in the kiln body of the rotation crystallization 1；The drawing mechanism 1d is set
It is useful for the exhaust passage of exhaust and the tapping channel for discharging.The kiln body of the rotation crystallization 1 is real using packing seal
The connection of row and feed arrangement 1c and drawing mechanism 1d, closes all outlet ports gate valve of feed arrangement 1c and drawing mechanism 1d, then
Kiln body forms a pressurize confined space.
Rapping apparatus is additionally provided with outside the kiln body of the rotation crystallization 1, kiln body outer wall is hit, causes vibration, reduce
The viscous wall of material.
Present invention also offers a kind of side that alpha gypsum powder is prepared using the continuous preparation system of walking-beam kiln
Method, comprises the following steps：
(1) raw material stocks up through feed system 9, measures, crystal modifier is mixed evenly, and rotation knot is sent into by screw conveyor
Brilliant kiln 1；
(2) rotate crystallization charging after the completion of, hydraulic pressure stepper promote the small car team of stepping on rotation crystallization successively into
Enter the firing chamber of tunnel oven, carry out heating exhaust, enter thermostatic chamber progress constant temperature and pressure turn crystalline substance after reaching certain condition, turn brilliant complete
Enter drying chamber into rear, connect gas exhaust piping and dust pelletizing system first, Open valve carries out pressure release and drying is vented, and discharge contains
The high humidity gas of land plaster enters deduster and carries out dedusting；
(3) the rotation crystallization 1 for completing baking operation removes tunnel oven 3 with moving cart, discharging is carried out, after material is drawn off
Cooled down by conveying device and be delivered to modified grinding machine 11 and be modified grinding, be then sent to aging bunker 12, finally enter packaging
Machine 13 is packed；
(4) moving cart after the completion of discharging and rotation crystallization 1 are hoisted to return tunnel by wherein one traversing crane 5
Returned on 6, then the feeding station for being back to tunnel oven 3 is hung by another traversing crane 5, continue the preparation of alpha gypsum powder.
As shown in the above, the continuous preparation system of walking-beam kiln of the invention can realize the continuous of production technology
Property, the transfer operation of reduction and material, process procedure is few, has the characteristics of production cycle is shorter, quality assurance, can be to a greater degree
Labour is saved, significantly reduces the manipulation strength of labourer, the thermal efficiency is high, can reduce the heat waste in alpha gypsum powder production.
Those of ordinary skills in the art should understand that：The discussion of any of the above embodiment is exemplary only, not
It is intended to imply that the scope of the present disclosure (including claim) is limited to these examples；Under the thinking of the present invention, above example
Or can also be combined between the technical characteristic in different embodiments, and there is different aspect present invention as described above
Many other changes, in order to it is concise they do not provided in details.Therefore, within the spirit and principles of the invention,
Any omission for being made, modification, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of continuous preparation system of the walking-beam kiln of alpha gypsum powder, it is characterised in that small including rotation crystallization, stepping
Car team, tunnel oven, hydraulic pressure stepper, traversing crane and return trajectory, the tunnel oven are semi-enclosed heat source system, including steel
Furnace body that structural housing, heat-insulating heat-preserving material are built by laying bricks or stones, inlet and outlet insulation upright lift gate, heating system, temperature control detecting system,
Face track and low voltage electric power system, the length direction of the tunnel oven are separated into three rooms by upright lift gate, respectively heat up
Operation door is additionally provided with the side wall of room, thermostatic chamber, drying chamber, the firing chamber and the drying chamber；The confession of the tunnel oven
Hot systems heat the tunnel oven and the rotation crystallization, and the small car team of stepping is made of more moving carts,
The rotation crystallization is both provided with each moving cart, and each moving cart is both placed on the ground rail, is led to
Cross the operating power supply that the low voltage electric power system realizes the rotation crystallization；The moving cart by labyrinth seal realize with
The thermal-insulating sealing of the tunnel oven, the hydraulic pressure stepper promote the moving cart to realize process stepping by bottom collision block,
The traversing crane is arranged on the center both ends of the return tunnel and the tunnel oven；The return trajectory is that the movement is small
The process cycles passage of car, rotation crystallization and moving cart after the completion of discharging are hoisted to described by a wherein traversing crane
Return to tunnel to return, then the feeding station for being back to the tunnel oven is hung by another traversing crane.
2. the continuous preparation system of walking-beam kiln according to claim 1, it is characterised in that the moving cart all fills
There is bottom collision block, realized and connected by bottom collision block, the bottom collision block contact hydraulic pressure stepper push rod of first moving cart, by
Hydraulic pressure stepper promotes the stepping of the small car team of stepping according to the process time；The outside of the drying chamber is provided with dust pelletizing system
And gas exhaust piping, after rotation crystallization enters the drying chamber, the gas exhaust piping is connected, Open valve carries out pressure release and baking
Dry exhaust, the high humidity gas containing land plaster of discharge enter the dust pelletizing system and carry out dedusting, and the gas exhaust piping is detachable
Formula.
3. the continuous preparation system of walking-beam kiln according to claim 1, it is characterised in that the system also includes original
Material feed system, discharge system, dust pelletizing system, modified grinding machine, aging bunker and packing machine, the raw material feed system include raw material
Preparation, metering, equipment, the discharge system such as conveying be connected by conveying device with the modified grinding machine, the improved grinder
Machine receives the material of conveying device transmission, and the aging bunker receives the material of the modified grinding machine processing, and the packing machine receives
The material of the aging bunker is simultaneously packed.
4. the continuous preparation system of walking-beam kiln according to claim 1, it is characterised in that it is described rotation crystallization be
The cylindrical horizontal pressure vessel of one special shape, is erected in moving cart by two groups of support devices, by transmission device by
Motor installed in moving cart bottom drives rotation, and cylinder interior is provided with raises beneficial to the helical blade of input and output material and stirring
Expect blade, there are a feed arrangement and drawing mechanism in cylinder both ends, and the feed arrangement is provided with swivel joint and valve, described in realization
Rotate the exhaust and pressure release in the kiln body of crystallization；The drawing mechanism is provided with for the exhaust passage of exhaust and for discharging
Tapping channel；Rapping apparatus is additionally provided with outside the kiln body of the rotation crystallization, kiln body outer wall is hit, causes vibration, subtract
The viscous wall of few material.
5. a kind of usage right requirement continuous preparation system of 1-4 any one of them walking-beam kilns prepares the side of alpha gypsum powder
Method, it is characterised in that comprise the following steps：
(1) raw material stocks up through feed system, measures, crystal modifier is mixed evenly, and rotation crystallization is sent into by screw conveyor；
(2) after the completion of rotating crystallization charging, hydraulic pressure stepper promotes the rotation crystallization on the small car team of stepping to sequentially enter tunnel
The firing chamber of road kiln, carry out heating exhaust, enters thermostatic chamber progress constant temperature and pressure turn crystalline substance after reaching certain condition, after the completion of turning brilliant
Into drying chamber, gas exhaust piping and dust pelletizing system are connected first, Open valve carries out pressure release and drying is vented, and discharge contains gypsum
The high humidity gas of powder enters deduster and carries out dedusting；
(3) complete baking operation rotation crystallization with moving cart remove tunnel oven, carry out discharging, material draw off after by conveying
Device, which cools down and is delivered to modified grinding machine, is modified grinding, is then sent to aging bunker, finally enters packing machine and packed；
(4) moving cart after the completion of discharging and rotation crystallization are hoisted to return by a wherein traversing crane and are returned on tunnel
Return, then the feeding station for being back to tunnel oven is hung by another traversing crane, continue the preparation of alpha gypsum powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711123495.7A CN107986653A (en) | 2017-11-14 | 2017-11-14 | A kind of continuous preparation system of the walking-beam kiln of alpha gypsum powder and application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711123495.7A CN107986653A (en) | 2017-11-14 | 2017-11-14 | A kind of continuous preparation system of the walking-beam kiln of alpha gypsum powder and application method |
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| CN107986653A true CN107986653A (en) | 2018-05-04 |
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ID=62030930
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711123495.7A Pending CN107986653A (en) | 2017-11-14 | 2017-11-14 | A kind of continuous preparation system of the walking-beam kiln of alpha gypsum powder and application method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109999722A (en) * | 2019-05-06 | 2019-07-12 | 广西宝汇佳利投资管理有限公司 | A kind of scale continuous and stable production device and method of black phosphorus |
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|---|---|---|---|---|
| CN1229769A (en) * | 1998-03-24 | 1999-09-29 | 顾欣 | Tech. for baking gypsum and its heat resistant baking vessel |
| CN101813416A (en) * | 2010-04-15 | 2010-08-25 | 江苏瑞诚非金属材料有限公司 | Automated kiln car feeding system in tunnel kiln |
| CN105352314A (en) * | 2015-11-07 | 2016-02-24 | 衡南扬钢冶金技术有限公司 | Tunnel kiln used for smelting |
| CN105800978A (en) * | 2016-06-08 | 2016-07-27 | 湖南昌迅科技环保股份有限公司 | Rotary alpha gypsum powder crystallization kiln |
| CN106277874A (en) * | 2016-07-22 | 2017-01-04 | 湖南昌迅科技环保股份有限公司 | A kind of continuous preparation system of α Gypsum Fibrosum |
| CN206803726U (en) * | 2017-03-27 | 2017-12-26 | 周天津 | A kind of combined type tunnel cave |
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2017
- 2017-11-14 CN CN201711123495.7A patent/CN107986653A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1229769A (en) * | 1998-03-24 | 1999-09-29 | 顾欣 | Tech. for baking gypsum and its heat resistant baking vessel |
| CN101813416A (en) * | 2010-04-15 | 2010-08-25 | 江苏瑞诚非金属材料有限公司 | Automated kiln car feeding system in tunnel kiln |
| CN105352314A (en) * | 2015-11-07 | 2016-02-24 | 衡南扬钢冶金技术有限公司 | Tunnel kiln used for smelting |
| CN105800978A (en) * | 2016-06-08 | 2016-07-27 | 湖南昌迅科技环保股份有限公司 | Rotary alpha gypsum powder crystallization kiln |
| CN106277874A (en) * | 2016-07-22 | 2017-01-04 | 湖南昌迅科技环保股份有限公司 | A kind of continuous preparation system of α Gypsum Fibrosum |
| CN206803726U (en) * | 2017-03-27 | 2017-12-26 | 周天津 | A kind of combined type tunnel cave |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109999722A (en) * | 2019-05-06 | 2019-07-12 | 广西宝汇佳利投资管理有限公司 | A kind of scale continuous and stable production device and method of black phosphorus |
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Application publication date: 20180504 |