CN112169926A - High-temperature stirring ball mill - Google Patents

High-temperature stirring ball mill Download PDF

Info

Publication number
CN112169926A
CN112169926A CN202011170465.3A CN202011170465A CN112169926A CN 112169926 A CN112169926 A CN 112169926A CN 202011170465 A CN202011170465 A CN 202011170465A CN 112169926 A CN112169926 A CN 112169926A
Authority
CN
China
Prior art keywords
temperature
ball mill
vacuum tank
heating
tank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011170465.3A
Other languages
Chinese (zh)
Inventor
罗正坤
李国良
何亚登
潘皓
易贝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Chuangweilai Mechanical And Electrical Equipment Manufacturing Co ltd
Original Assignee
Hunan Chuangweilai Mechanical And Electrical Equipment Manufacturing Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hunan Chuangweilai Mechanical And Electrical Equipment Manufacturing Co ltd filed Critical Hunan Chuangweilai Mechanical And Electrical Equipment Manufacturing Co ltd
Priority to CN202011170465.3A priority Critical patent/CN112169926A/en
Publication of CN112169926A publication Critical patent/CN112169926A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/10Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/16Mills in which a fixed container houses stirring means tumbling the charge
    • B02C17/163Stirring means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18Details
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18Details
    • B02C17/1815Cooling or heating devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18Details
    • B02C17/24Driving mechanisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C25/00Control arrangements specially adapted for crushing or disintegrating

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)

Abstract

The invention discloses a high-temperature stirring ball mill which comprises a ball mill power device, a coupling, a stirring rod and a grinding barrel, wherein the grinding barrel comprises a heating tank and a vacuum tank arranged in the heating tank, the stirring rod is arranged in the vacuum tank, the ball mill power device drives the stirring rod to rotate in the vacuum tank through the coupling, a heating body is filled between the vacuum tank and the heating tank, the heating body is connected with a temperature control probe arranged in the vacuum tank, the temperature control probe is used for acquiring temperature information in the vacuum tank in real time, the heating body and the temperature control probe are both connected with an external control device, and the control device is used for carrying out heating temperature regulation control on the heating body according to the temperature information fed back by the temperature control probe. The ball milling speed and the heating temperature are controllable, the ball milling device has the advantages of high temperature, high efficiency, low production and manufacturing cost, lower energy consumption compared with other high-temperature ball mills, and capability of providing a higher and more stable ball milling temperature environment.

Description

High-temperature stirring ball mill
Technical Field
The invention mainly relates to the technical field of stirring ball mills, in particular to a high-temperature stirring ball mill.
Background
The ball mill is a grinding device for processing fine-grained minerals, and plays an indispensable role in the fields of powder metallurgy, electronic raw materials, mineral raw materials and nano materials. The working temperature of the high-temperature stirring ball mill which is widely used at present is about 100 ℃, the special material with temperature requirement can not reach the due temperature and ball milling effect, and the high-temperature stirring ball mill has high energy consumption, slow heat conduction, uneven heat conduction and low ball milling efficiency.
Disclosure of Invention
In view of the above, the present invention provides a high temperature stirring ball mill, which can solve the defects of high energy consumption, slow heat conduction, non-uniform heat conduction and low ball milling efficiency of the existing ball mill.
The high-temperature stirring ball mill comprises a ball mill power device, a coupler, a stirring rod and a grinding barrel, wherein the grinding barrel comprises a heating tank and a vacuum tank arranged in the heating tank, the stirring rod is arranged in the vacuum tank, the ball mill power device drives the stirring rod to rotate in the vacuum tank through the coupler, a heating body is filled between the vacuum tank and the heating tank, the heating body is connected with a temperature control probe arranged in the vacuum tank, the temperature control probe is used for acquiring temperature information in the vacuum tank in real time, the heating body and the temperature control probe are both connected with an external control device, and the control device is used for carrying out heating temperature regulation control on the heating body according to the temperature information fed back by the temperature control probe.
Further, the high-temperature stirring ball mill still includes the pipeline of giving vent to anger and sets up the ball valve of giving vent to anger on the pipeline of giving vent to anger, the pipeline of giving vent to anger passes the lateral wall setting of heating jar and vacuum tank to with the vacuum tank intercommunication, the high-temperature stirring ball mill carries out the evacuation in the vacuum tank through the pipeline of giving vent to anger.
Further, high temperature stirring ball mill still includes the admission line and sets up the ball valve that admits air on the admission line, the admission line passes the lateral wall setting of heating jar and vacuum tank to with the vacuum tank intercommunication, high temperature stirring ball mill passes through the admission line and inputs protective gas in to the vacuum tank, realizes the material grinding under the atmosphere environment.
Further, the grinding temperature range of the high-temperature stirring ball mill in a vacuum or atmosphere environment is 0-300 ℃.
Furthermore, an O-shaped sealing ring is arranged between the tank body of the vacuum tank and the top cover thereof, and/or an O-shaped sealing ring is arranged between the tank body of the heating tank and the top cover thereof.
Further, the outside cover of heating jar is equipped with the radiation shield.
Further, the bottom of vacuum tank is provided with the discharge gate, the discharge gate is from last to down being equipped with screen cloth, discharge gate flange and discharge gate stifle in proper order, the bottom of vacuum tank passes through discharge gate flange and discharge gate stifle fixed connection.
Further, the upper portion of milling barrel still fixedly is provided with the supporting seat, ball mill power device installs on the supporting seat.
Furthermore, the ball mill power device is a water-cooled motor with variable frequency speed regulation.
Furthermore, a plurality of stirring paddles used for stirring materials are arranged on the stirring rod.
The high-temperature stirring ball mill comprises a ball mill power device, a coupler, a stirring rod and a grinding barrel, wherein the grinding barrel comprises a heating tank and a vacuum tank arranged in the heating tank, the stirring rod is arranged in the vacuum tank, the ball mill power device drives the stirring rod to rotate in the vacuum tank through the coupler, a heating element is filled between the vacuum tank and the heating tank, the heating element is connected with a temperature control probe arranged in the vacuum tank, the temperature control probe is used for acquiring temperature information in the vacuum tank in real time, the heating element and the temperature control probe are both connected with an external control device, and the control device performs heating and temperature adjustment control on the heating element according to the temperature information fed back by the temperature control probe. The ball milling speed and the heating temperature are controllable, the ball milling device has the advantages of high temperature, high efficiency, low production and manufacturing cost, lower energy consumption compared with other high-temperature ball mills, and capability of providing a higher and more stable ball milling temperature environment.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a front sectional view of a high temperature agitator ball mill in accordance with an embodiment of the present invention;
fig. 2 is a sectional view taken along line B-B in fig. 1.
Description of reference numerals:
a water-cooled motor-1, a support seat-2, an air inlet ball valve-3, an air inlet pipeline-3 ', a heating tank-4, a vacuum tank-5, a heat insulation sleeve-6, a heating body-7, a heating tank locking bolt-8, a ceramic insulation sleeve-9, a discharge port flange-10, a discharge port cover-11, an FFKM discharge port sealing ring-12, a screen-13, an FFKM heating tank body lower sealing ring-14, a stirring rod-15, a coupler-16, an air outlet ball valve-17, an air outlet pipeline-17', an FFKM O-shaped sealing ring-18, a temperature control probe-19
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In the present invention, the orientations such as "left" and "right" are used with reference to the view shown in fig. 1.
FIG. 1 is a front sectional view of a high-temperature agitator ball mill according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along line B-B in FIG. 1. With reference to fig. 1 and 2, the high-temperature agitator ball mill of this embodiment includes a ball mill power device, a coupling 16, an agitator arm 15, a grinding barrel and a support base 2, specifically, the support base 2 is fixed on the upper portion of the grinding barrel, the grinding barrel includes a heating tank 4 and a vacuum tank 5 disposed inside the heating tank 4, the heating tank 4 and the vacuum tank 5 are coaxially disposed, the agitator arm 15 is disposed in the vacuum tank 5, and a plurality of agitation slurries for agitating materials are disposed thereon, so as to improve grinding efficiency and satisfy different ball-to-material ratios; the ball mill power device is arranged on the supporting seat 2, and the ball mill power device drives the stirring rod 15 to rotate in the vacuum tank 5 through the coupler 16 to stir materials; the heating body 7 is filled between the vacuum tank 5 and the heating tank 4, the heating body 7 can directly conduct heat to the heating tank 4, heating time is shortened, energy consumption is saved, rapid heating is achieved, meanwhile, the heating body 7 is connected with the temperature control probe 19 arranged in the vacuum tank 5, the temperature control probe 19 is used for acquiring temperature information in the vacuum tank 5 in real time, the heating body 7 and the temperature control probe 19 are both connected with an external control device, the control device comprises a temperature controller, the control device mainly controls the circuit of the heating body 7 to be disconnected according to the temperature information fed back by the temperature control probe 19 through the temperature controller, and heating temperature of the ball mill is controllable. It should be noted that the high-temperature stirring ball mill can work in a vacuum environment or an atmosphere environment, and the working grinding temperature can reach 300 ℃ at most and 0 ℃ at least. Preferably, the heating elements 7 are uniformly disposed between the outer surface of the vacuum tank 5 and the inner surface of the heating tank 4 in order to achieve uniform temperature rise of the heating tank 4.
Meanwhile, referring to fig. 1, the high-temperature stirred ball mill further comprises an air outlet pipeline 17', an air outlet ball valve 17, an air inlet pipeline 3' and an air inlet ball valve 3, wherein the air outlet pipeline 17' penetrates through the right side walls of the heating tank 4 and the vacuum tank 5 and is communicated with the vacuum tank 5, the air outlet ball valve 17 is arranged on the air outlet pipeline 17', and the high-temperature stirred ball mill performs vacuum pumping on the inside of the vacuum tank 5 through the air outlet pipeline 17' to realize material grinding of the high-temperature stirred ball mill in a vacuum environment; the gas inlet pipeline 3 'penetrates through the left side walls of the heating tank 4 and the vacuum tank 5 and is communicated with the vacuum tank 5, and protective gas is input into the vacuum tank 5 through the gas inlet pipeline 3' by the high-temperature stirring ball mill, so that material ball milling under an atmosphere environment is realized. Preferably, the outlet pipe 17 'and the inlet pipe 3' are arranged at the same height.
In the embodiment shown in fig. 1 and 2, in order to better seal the vacuum tank 5 and the heat generating tank 4, an O-ring is arranged between the tank body of the vacuum tank 5 and the top cover thereof, and/or an O-ring is arranged between the tank body of the heat generating tank 4 and the top cover thereof. The O-ring is preferably an O-ring 18 of FFKM (perfluoroether). Of course, the type of the sealing ring is not limited to the O-type, and the O-type sealing ring is not limited to the O-type sealing ring using the FFKM, and there may be other more possibilities, and the technical effects of the present invention may be achieved.
In addition, the outside cover of jar 4 that generates heat is equipped with insulator sleeve 6, and its bottom is provided with ceramic insulator sleeve 9, and the grinding temperature in the high temperature stirring ball mill can be guaranteed to insulator sleeve 6, and ceramic insulator sleeve 9 specifically can ensure outside operation safety through jar locking bolt 8 and the jar 4 detachably fixed connection that generates heat that generate heat. It should be noted that an FFKM heating tank body lower sealing ring 14 is preferably arranged between the bottom of the heating tank 4 and the ceramic insulating sleeve 9, so as to further improve the sealing performance of the tank body.
Further, in order to ensure the atmosphere conditions required by ball milling of materials, variable frequency speed regulation and grinding efficiency, the ball mill power device is preferably a variable frequency speed regulation water-cooled motor 1, and the water-cooled motor 1 drives a stirring rod 15 to rotate in the vacuum tank 5 through a coupler 16 to stir the materials. It should be noted that the water-cooled motor 1 can also be connected with an external control device to realize automatic control of the grinding speed without manual intervention, i.e. the ball milling speed of the ball mill of the present invention is controllable.
As a preferred embodiment of the present invention, the bottom of the vacuum tank 5 is provided with a discharge port, the discharge port is sequentially provided with a screen 13, a discharge port flange 10 and a discharge port blank cap 11 from top to bottom, the bottom of the vacuum tank 5 is fixedly connected with the discharge port blank cap 11 through the discharge port flange 10, and an FFKM discharge port sealing ring 12 is arranged between the discharge port flange 10 and the discharge port blank cap 11.
Compared with the prior art, the invention has the following advantages:
1) a heating body 7 is filled between the vacuum tank 5 and the heating tank 4, the heating body 7 can directly conduct heat to the heating tank 4 and is connected with a temperature control probe 19 arranged in the vacuum tank 5, meanwhile, the heating body 7 and the temperature control probe 19 are both connected with an external control device, and the control device carries out heating temperature regulation control on the heating body 7 according to the temperature obtained by the temperature control probe 19 in real time, so that on one hand, the heating temperature of the ball mill can be controlled, and on the other hand, the heat conduction efficiency is high;
2) according to the invention, through the arranged air outlet pipeline 17', the air outlet ball valve 17, the air inlet pipeline 3' and the air inlet ball valve 3, the ball milling of materials in a vacuum environment or an atmosphere environment can be realized as required, and the ball milling efficiency is further improved;
3) the highest working temperature of the high-temperature stirring ball mill in a vacuum or atmosphere environment can reach 300 ℃, so that the grinding efficiency is greatly improved;
4) the power device of the ball mill in the invention is preferably a water-cooling motor 1 with variable frequency and speed regulation, and the power device can also be connected with an external control device, and the grinding speed is automatically regulated by the control device, so that the ball milling speed of the ball mill can be automatically controlled.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. A high-temperature stirring ball mill comprises a ball mill power device, a shaft coupling (16), a stirring rod (15) and a grinding barrel, it is characterized in that the grinding barrel comprises a heating tank (4) and a vacuum tank (5) arranged in the heating tank (4), the stirring rod (15) is arranged in the vacuum tank (5), the power device of the ball mill drives the stirring rod (15) to rotate in the vacuum tank (5) through a coupling (16), a heating body (7) is filled between the vacuum tank (5) and the heating tank (4), the heating element (7) is connected with a temperature control probe (19) arranged in the vacuum tank (5), the temperature control probe (19) is used for acquiring the temperature information in the vacuum tank (5) in real time, and the heating body (7) and the temperature control probe (19) are both connected with an external control device, the control device is used for carrying out heating temperature regulation control on the heating body (7) according to the temperature information fed back by the temperature control probe (19).
2. The high-temperature agitator ball mill according to claim 1, further comprising an air outlet pipe (17') and an air outlet ball valve (17) provided on the air outlet pipe (17'), wherein the air outlet pipe (17') is provided through the side walls of the heating tank (4) and the vacuum tank (5) and communicates with the vacuum tank (5), and the high-temperature agitator ball mill evacuates the inside of the vacuum tank (5) through the air outlet pipe (17').
3. The high-temperature agitator ball mill according to claim 2, characterized by further comprising an air inlet pipe (3') and an air inlet ball valve (3) arranged on the air inlet pipe (3'), wherein the air inlet pipe (3') is arranged through the side walls of the heating tank (4) and the vacuum tank (5) and is communicated with the vacuum tank (5), and the high-temperature agitator ball mill realizes material grinding in an atmosphere environment by inputting protective gas into the vacuum tank (5) through the air inlet pipe (3').
4. A high-temperature agitator ball mill according to claim 3, characterized in that the grinding temperature of the high-temperature agitator ball mill in a vacuum or atmospheric environment ranges from 0 to 300 ℃.
5. A high-temperature agitator ball mill according to claim 1, characterized in that an O-ring seal is provided between the body of the vacuum tank (5) and its top cover, and/or an O-ring seal is provided between the body of the heat-generating tank (4) and its top cover.
6. A high temperature agitator ball mill according to claim 1, characterized in that the outer jacket of the heating tank (4) is provided with a heat insulating jacket (6).
7. The high-temperature stirring ball mill according to claim 1, characterized in that the bottom of the vacuum tank (5) is provided with a discharge port, the discharge port is sequentially provided with a screen (13), a discharge port flange (10) and a discharge port blank cap (11) from top to bottom, and the bottom of the vacuum tank (5) is fixedly connected with the discharge port blank cap (11) through the discharge port flange (10).
8. A high-temperature agitator ball mill as claimed in claim 1, wherein the upper part of the grinding barrel is also fixedly provided with a supporting seat (2), and the ball mill power device is arranged on the supporting seat (2).
9. A high-temperature agitator ball mill according to claim 8, characterized in that the ball mill power plant is a variable-frequency speed-adjustable water-cooled motor (1).
10. A high temperature agitator ball mill according to claim 1, characterized in that the agitator arms (15) are provided with a number of agitator paddles for agitating the material.
CN202011170465.3A 2020-10-28 2020-10-28 High-temperature stirring ball mill Pending CN112169926A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011170465.3A CN112169926A (en) 2020-10-28 2020-10-28 High-temperature stirring ball mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011170465.3A CN112169926A (en) 2020-10-28 2020-10-28 High-temperature stirring ball mill

Publications (1)

Publication Number Publication Date
CN112169926A true CN112169926A (en) 2021-01-05

Family

ID=73923018

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011170465.3A Pending CN112169926A (en) 2020-10-28 2020-10-28 High-temperature stirring ball mill

Country Status (1)

Country Link
CN (1) CN112169926A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210213459A1 (en) * 2018-05-29 2021-07-15 Deasyl Sa Three-dimensional grinder, method for implementing same and uses thereof
CN115178743A (en) * 2022-07-15 2022-10-14 长沙米淇仪器设备有限公司 Ball mill for vacuum high-temperature heat treatment
CN115194162A (en) * 2022-07-15 2022-10-18 长沙米淇仪器设备有限公司 500 ℃ high-temperature heat treatment horizontal ball mill
CN115194164A (en) * 2022-07-25 2022-10-18 长沙米淇仪器设备有限公司 800 ℃ high-temperature heat treatment horizontal ball mill and ball milling method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210213459A1 (en) * 2018-05-29 2021-07-15 Deasyl Sa Three-dimensional grinder, method for implementing same and uses thereof
US11969734B2 (en) * 2018-05-29 2024-04-30 Deasyl Sa Three-dimensional grinder, method for implementing same and uses thereof
CN115178743A (en) * 2022-07-15 2022-10-14 长沙米淇仪器设备有限公司 Ball mill for vacuum high-temperature heat treatment
CN115194162A (en) * 2022-07-15 2022-10-18 长沙米淇仪器设备有限公司 500 ℃ high-temperature heat treatment horizontal ball mill
CN115194164A (en) * 2022-07-25 2022-10-18 长沙米淇仪器设备有限公司 800 ℃ high-temperature heat treatment horizontal ball mill and ball milling method

Similar Documents

Publication Publication Date Title
CN112169926A (en) High-temperature stirring ball mill
CN1460289A (en) Plasma processing device and semiconductor mfg. device
CN104525032B (en) A kind of Gas Stirring still and stirring means being easy to heating
CN103990534B (en) A kind of plasma auxiliary high-energy ball milling prepares the method for AlN nanometer powder
CN206310916U (en) A kind of multifunctional high-temperature microwave apparatus for melting metal
CN105032306B (en) Solid-phase atmosphere reaction device
CN105222582B (en) A kind of microwave, electric Hybrid Heating high-temperature service
CN108106426B (en) Crucible of high-temperature graphite furnace
CN213590663U (en) High-temperature stirring ball mill
CN108043352A (en) A kind of chemical reaction kettle
CN205687816U (en) A kind of zirconium oxide electric function ceramic powder producing device
CN108043071A (en) A kind of deaeration agitating device of silver paste
CN210663722U (en) Box type quartz sand drying device
CN106179094A (en) The dispersed system of a kind of slurry automatization
CN205253019U (en) High -performance polycarboxylate water reducer production facility
CN207294194U (en) A kind of quartz sand Rapid Cleaning agitating device
CN109881245A (en) A kind of single crystal furnace heater lifting device
CN105521754A (en) Reaction kettle for producing scouring agent
CN108014734A (en) A kind of nano material production line
CN107088395A (en) A kind of reactor of the chemical products processing with heating refrigerating function
CN206661218U (en) A kind of reactor for catalyst
CN215086242U (en) Compounding device is used in production of low aluminium carborundum
CN219559375U (en) Stirring equipment for producing electronic grade silicon micropowder
CN209230280U (en) A kind of calcining furnace producing illusion-colour mica powder
CN106179073A (en) A kind of slurry disperse system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination