CN219356487U - Cement raw material production-improving and consumption-reducing equipment - Google Patents

Cement raw material production-improving and consumption-reducing equipment Download PDF

Info

Publication number
CN219356487U
CN219356487U CN202223298536.5U CN202223298536U CN219356487U CN 219356487 U CN219356487 U CN 219356487U CN 202223298536 U CN202223298536 U CN 202223298536U CN 219356487 U CN219356487 U CN 219356487U
Authority
CN
China
Prior art keywords
outlet
fine powder
concentrator
raw material
powder concentrator
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.)
Active
Application number
CN202223298536.5U
Other languages
Chinese (zh)
Inventor
何亚民
魏勇
丁亚卓
徐智平
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.)
Chengdu Leejun Industrial Co Ltd
Original Assignee
Chengdu Leejun Industrial 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 Chengdu Leejun Industrial Co Ltd filed Critical Chengdu Leejun Industrial Co Ltd
Priority to CN202223298536.5U priority Critical patent/CN219356487U/en
Application granted granted Critical
Publication of CN219356487U publication Critical patent/CN219356487U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/10Production of cement, e.g. improving or optimising the production methods; Cement grinding

Landscapes

  • Crushing And Grinding (AREA)

Abstract

The utility model discloses equipment for extracting production and reducing consumption of cement raw materials, which relates to the technical field of cement production equipment.

Description

Cement raw material production-improving and consumption-reducing equipment
Technical Field
The utility model relates to the technical field of cement production equipment, in particular to equipment for improving the yield and reducing the consumption of cement raw materials.
Background
The existing cement raw materials are divided into coarse materials and semi-finished products after being screened by a raw material powder concentrator, the coarse materials are fed into a roller press, the roller press rolls and then is fed back to the powder concentrator, the semi-finished products are fed into a fine powder concentrator, coarse powder selected by the fine powder concentrator and coarse materials selected by the raw material powder concentrator are fed into secondary rolling together, but larger particle size difference exists between the coarse powder selected by the fine powder concentrator and the coarse materials selected by the raw material powder concentrator, and the coarse materials are fed into the roller press together to influence the running stability of the roller press, so that the processing load of the roller press is increased, the processing efficiency of the roller press is reduced, and the energy consumption of cement production is improved.
Disclosure of Invention
The utility model aims at: aiming at the problems, the utility model provides cement raw material production-improving and consumption-reducing equipment which can effectively reduce the load of a roller press, improve the working efficiency of the roller press, control the particle size entering the roller press, ensure the stable operation of the roller press and reduce the whole production energy consumption.
The technical scheme adopted by the utility model is as follows:
the cement raw material production-improving and consumption-reducing equipment comprises a raw material powder concentrator, a roller press and a fine powder concentrator, wherein a coarse material outlet of the raw material powder concentrator is communicated with a feed inlet of the roller press, a fine material outlet of the raw material powder concentrator is communicated with a feed inlet of the fine powder concentrator, a discharge outlet of the roller press is connected with and returns to the feed inlet of the raw material powder concentrator, a fine powder outlet of the fine powder concentrator is communicated with a finished product collecting device, a non-fine powder outlet of the fine powder concentrator is communicated with a feed inlet of a stirring mill, an air outlet of the stirring mill is communicated with a finished product collecting device, and a discharge outlet of the stirring mill is communicated with the finished product collecting device or is connected with the feed inlet of the raw material powder concentrator; the stirring mill is internally filled with a filling medium which can act on materials, the stirring mill is internally provided with a stirring device which can drive the materials and the filling medium to perform rotary motion together, and a discharging opening of the stirring mill is provided with a separating device which can only enable the materials to pass through and limit the filling medium to pass through.
Further, the non-fine powder outlet of the fine powder separator comprises a coarse powder outlet and a medium powder outlet, the coarse powder outlet is communicated with a first interface of a three-way valve, a second interface of the three-way valve is communicated with a feed inlet of the stirring mill, and a third interface of the three-way valve is communicated with a feed inlet of the roller press.
Further, the fine powder concentrator is an SRV type powder concentrator.
Further, the fine powder separator is an XR type powder separator, a non-fine powder outlet of the XR type powder separator is a coarse powder outlet, and the coarse powder outlet is communicated with a feed inlet of the stirring mill.
Further, the finished product collecting device comprises a cyclone separator, a dust collector, a fan and a finished product conveying device, wherein a fine powder outlet of the fine powder separator is connected with the cyclone separator, an air outlet of the cyclone separator is connected with the dust collector, a discharge outlet of the cyclone separator is connected with the finished product conveying device, a discharge outlet of the dust collector is connected with the finished product conveying device, and an air outlet of the dust collector is connected with the fan; the air outlet of the stirring mill is connected with the air inlet of the cyclone separator or the air inlet of the dust collector.
Further, a feed opening of the stirring mill is connected with a finished product conveying device.
Further, the feed opening of stirring mill is connected with the feed inlet of raw materials selection powder machine through first lifting machine.
Further, a weighing bin is connected to the feeding hole of the roller press, and the coarse material outlet of the raw material powder selecting machine is connected with the weighing bin through a second lifting machine.
Further, a discharge port of the roller press is connected with and returns to the raw material powder selecting machine through a first lifting machine.
Further, the raw material powder concentrator is a V-shaped powder concentrator.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows: through addding the stirring mill, grind the non-fine powder that fine powder machine was selected, this part material need not return to the roll squeezer again and carries out the secondary roll-in, can effectively reduce the load of roll squeezer, improve the work path of roll squeezer, the material of grinding through the stirring mill can directly give finished product conveyor as required and form the open flow system, perhaps select the powder machine to carry out the reclassification for the raw materials, form the circulation system, no matter be open flow system or the circulation system, can both avoid fine powder secondary to get into the roll squeezer, improve the stationarity of roll squeezer operation.
Drawings
FIG. 1 is a schematic diagram of a structure in which a fine powder concentrator of the present utility model is an SRV type concentrator and is an open flow system;
FIG. 2 is a schematic diagram of the structure of the fine powder concentrator of the present utility model, which is an SRV type concentrator and is a circular flow system;
FIG. 3 is a schematic diagram of the structure of the XR type powder concentrator of the fine powder concentrator of the utility model;
FIG. 4 is a schematic diagram of the structure of the XR type powder concentrator and the circular flow system of the fine powder concentrator;
fig. 5 is a schematic structural view of the agitator mill.
The marks in the figure: 1-raw material powder selecting machine, 2-roller press, 3-fine powder selecting machine, 301-fine powder outlet, 302-coarse powder outlet, 303-medium powder outlet, 4-stirring mill, 5-three-way valve, 6-finished product collecting device, 601-cyclone separator, 602-dust collector, 603-fan, 604-finished product conveying device, 7-weighing bin, 8-first lifting machine and 9-second lifting machine.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings.
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Example 1
The cement raw material production-improving and consumption-reducing equipment comprises a raw material powder concentrator 1, a roller press 2 and a fine powder concentrator 3, wherein a coarse material outlet of the raw material powder concentrator 1 is communicated with a feed inlet of the roller press 2, a fine material outlet of the raw material powder concentrator 1 is communicated with a feed inlet of the fine powder concentrator 3, a discharge outlet of the roller press 2 is connected with and returns to the feed inlet of the raw material powder concentrator 1, a fine powder outlet 301 of the fine powder concentrator 3 is communicated with a finished product collecting device 6, a non-fine powder outlet on the fine powder concentrator 3 is communicated with a feed inlet of a stirring mill 4, an air outlet of the stirring mill 4 is communicated with the finished product collecting device 6, and a discharge outlet of the stirring mill 4 is communicated with the finished product collecting device 6; the stirring mill 4 is internally filled with a filling medium which can act on materials, the stirring mill 4 is internally provided with a stirring device which can drive the materials and the filling medium to perform rotary motion together, and a discharging opening of the stirring mill 4 is provided with a separating device which can only enable the materials to pass through and limit the filling medium to pass through.
The non-fine powder outlet of the fine powder separator 3 comprises a coarse powder outlet 302 and a medium powder outlet 303, the coarse powder outlet 302 is communicated with a first port of a three-way valve 5, a second port of the three-way valve 5 is communicated with a feed inlet of a stirring mill 4, and a third port of the three-way valve 5 is communicated with a feed inlet of a roller press 2.
The fine powder concentrator 3 is an SRV type powder concentrator.
The finished product collecting device 6 comprises a cyclone 601, a dust collector 602, a fan 603 and a finished product conveying device 604, wherein the fine powder outlet 301 of the fine powder separator 3 is connected with the cyclone 601, an air outlet of the cyclone 601 is connected with the dust collector 602, a discharge outlet of the cyclone 601 is connected with the finished product conveying device 604, a discharge outlet of the dust collector 602 is connected with the finished product conveying device 604, and an air outlet of the dust collector 602 is connected with the fan 603; the air outlet of the stirring mill 4 is connected with the air inlet of the cyclone separator 601.
The feed opening of the stirring mill 4 is connected with a finished product conveying device 604.
The feeding port of the roller press 2 is connected with a weighing bin 7, and the coarse material outlet of the raw material powder concentrator 1 is connected with the weighing bin 7 through a second lifting machine 9.
The discharge port of the roller press 2 is connected with and returns to the raw material powder selecting machine 1 through a first lifting machine 8.
The raw material powder concentrator 1 is a V-shaped powder concentrator.
Example 2
The cement raw material production-improving and consumption-reducing equipment comprises a raw material powder concentrator 1, a roller press 2 and a fine powder concentrator 3, wherein a coarse material outlet of the raw material powder concentrator 1 is communicated with a feed inlet of the roller press 2, a fine material outlet of the raw material powder concentrator 1 is communicated with a feed inlet of the fine powder concentrator 3, a discharge outlet of the roller press 2 is connected with and returns to the feed inlet of the raw material powder concentrator 1, a fine powder outlet 301 of the fine powder concentrator 3 is communicated with a finished product collecting device 6, a non-fine powder outlet on the fine powder concentrator 3 is communicated with a feed inlet of a stirring mill 4, an air outlet of the stirring mill 4 is communicated with the finished product collecting device 6, and a discharge outlet of the stirring mill 4 is connected with the feed inlet of the raw material powder concentrator 1; the stirring mill 4 is internally filled with a filling medium which can act on materials, the stirring mill 4 is internally provided with a stirring device which can drive the materials and the filling medium to perform rotary motion together, and a discharging opening of the stirring mill 4 is provided with a separating device which can only enable the materials to pass through and limit the filling medium to pass through.
The non-fine powder outlet of the fine powder separator 3 comprises a coarse powder outlet 302 and a medium powder outlet 303, the coarse powder outlet 302 is communicated with a first port of a three-way valve 5, a second port of the three-way valve 5 is communicated with a feed inlet of a stirring mill 4, and a third port of the three-way valve 5 is communicated with a feed inlet of a roller press 2.
The fine powder concentrator 3 is an SRV type powder concentrator.
The finished product collecting device 6 comprises a cyclone 601, a dust collector 602, a fan 603 and a finished product conveying device 604, wherein the fine powder outlet 301 of the fine powder separator 3 is connected with the cyclone 601, an air outlet of the cyclone 601 is connected with the dust collector 602, a discharge outlet of the cyclone 601 is connected with the finished product conveying device 604, a discharge outlet of the dust collector 602 is connected with the finished product conveying device 604, and an air outlet of the dust collector 602 is connected with the fan 603; the air outlet of the stirring mill 4 is connected with the air inlet of the cyclone separator 601.
The feed opening of stirring mill 4 is connected with the feed opening of raw materials selection powder machine 1 through first lifting machine 8.
The feeding port of the roller press 2 is connected with a weighing bin 7, and the coarse material outlet of the raw material powder concentrator 1 is connected with the weighing bin 7 through a second lifting machine 9.
The discharge port of the roller press 2 is connected with and returns to the raw material powder selecting machine 1 through a first lifting machine 8.
The raw material powder concentrator 1 is a V-shaped powder concentrator.
Example 3
The cement raw material production-improving and consumption-reducing equipment comprises a raw material powder concentrator 1, a roller press 2 and a fine powder concentrator 3, wherein a coarse material outlet of the raw material powder concentrator 1 is communicated with a feed inlet of the roller press 2, a fine material outlet of the raw material powder concentrator 1 is communicated with a feed inlet of the fine powder concentrator 3, a discharge outlet of the roller press 2 is connected with and returns to the feed inlet of the raw material powder concentrator 1, a fine powder outlet 301 of the fine powder concentrator 3 is communicated with a finished product collecting device 6, a non-fine powder outlet on the fine powder concentrator 3 is communicated with a feed inlet of a stirring mill 4, an air outlet of the stirring mill 4 is communicated with the finished product collecting device 6, and a discharge outlet of the stirring mill 4 is communicated with the finished product collecting device 6; the stirring mill 4 is internally filled with a filling medium which can act on materials, the stirring mill 4 is internally provided with a stirring device which can drive the materials and the filling medium to perform rotary motion together, and a discharging opening of the stirring mill 4 is provided with a separating device which can only enable the materials to pass through and limit the filling medium to pass through.
The fine powder concentrator 3 is an XR type concentrator, the non-fine powder outlet of the XR type concentrator is a coarse powder outlet 302, and the coarse powder outlet 302 is communicated with the feed inlet of the stirring mill 4.
The finished product collecting device 6 comprises a cyclone 601, a dust collector 602, a fan 603 and a finished product conveying device 604, wherein the fine powder outlet 301 of the fine powder separator 3 is connected with the cyclone 601, an air outlet of the cyclone 601 is connected with the dust collector 602, a discharge outlet of the cyclone 601 is connected with the finished product conveying device 604, a discharge outlet of the dust collector 602 is connected with the finished product conveying device 604, and an air outlet of the dust collector 602 is connected with the fan 603; the air outlet of the stirring mill 4 is connected with the air inlet of the cyclone separator 601.
The feed opening of the stirring mill 4 is connected with a finished product conveying device 604.
The feeding port of the roller press 2 is connected with a weighing bin 7, and the coarse material outlet of the raw material powder concentrator 1 is connected with the weighing bin 7 through a second lifting machine 9.
The discharge port of the roller press 2 is connected with and returns to the raw material powder selecting machine 1 through a first lifting machine 8.
The raw material powder concentrator 1 is a V-shaped powder concentrator.
Example 4
The cement raw material production-improving and consumption-reducing equipment comprises a raw material powder concentrator 1, a roller press 2 and a fine powder concentrator 3, wherein a coarse material outlet of the raw material powder concentrator 1 is communicated with a feed inlet of the roller press 2, a fine material outlet of the raw material powder concentrator 1 is communicated with a feed inlet of the fine powder concentrator 3, a discharge outlet of the roller press 2 is connected with and returns to the feed inlet of the raw material powder concentrator 1, a fine powder outlet 301 of the fine powder concentrator 3 is communicated with a finished product collecting device 6, a non-fine powder outlet on the fine powder concentrator 3 is communicated with a feed inlet of a stirring mill 4, an air outlet of the stirring mill 4 is communicated with the finished product collecting device 6, and a discharge outlet of the stirring mill 4 is connected with the feed inlet of the raw material powder concentrator 1; the stirring mill 4 is internally filled with a filling medium which can act on materials, the stirring mill 4 is internally provided with a stirring device which can drive the materials and the filling medium to perform rotary motion together, and a discharging opening of the stirring mill 4 is provided with a separating device which can only enable the materials to pass through and limit the filling medium to pass through.
The fine powder concentrator 3 is an XR type concentrator, the non-fine powder outlet of the XR type concentrator is a coarse powder outlet 302, and the coarse powder outlet 302 is communicated with the feed inlet of the stirring mill 4.
The finished product collecting device 6 comprises a cyclone 601, a dust collector 602, a fan 603 and a finished product conveying device 604, wherein the fine powder outlet 301 of the fine powder separator 3 is connected with the cyclone 601, an air outlet of the cyclone 601 is connected with the dust collector 602, a discharge outlet of the cyclone 601 is connected with the finished product conveying device 604, a discharge outlet of the dust collector 602 is connected with the finished product conveying device 604, and an air outlet of the dust collector 602 is connected with the fan 603; the air outlet of the stirring mill 4 is connected with the air inlet of the cyclone separator 601.
The feed opening of stirring mill 4 is connected with the feed opening of raw materials selection powder machine 1 through first lifting machine 8.
The feeding port of the roller press 2 is connected with a weighing bin 7, and the coarse material outlet of the raw material powder concentrator 1 is connected with the weighing bin 7 through a second lifting machine 9.
The discharge port of the roller press 2 is connected with and returns to the raw material powder selecting machine 1 through a first lifting machine 8.
The raw material powder concentrator 1 is a V-shaped powder concentrator.
The principles and embodiments of the present utility model have been described herein with reference to specific examples, which are intended to be merely illustrative of the methods of the present utility model and their core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Claims (10)

1. The cement raw material production-improving and consumption-reducing equipment comprises a raw material powder concentrator, a roller press and a fine powder concentrator, wherein a coarse material outlet of the raw material powder concentrator is communicated with a feed inlet of the roller press, a fine material outlet of the raw material powder concentrator is communicated with a feed inlet of the fine powder concentrator, a discharge outlet of the roller press is connected with and returns to the feed inlet of the raw material powder concentrator, and a fine powder outlet of the fine powder concentrator is communicated with a finished product collecting device. The stirring mill is internally filled with a filling medium which can act on materials, the stirring mill is internally provided with a stirring device which can drive the materials and the filling medium to perform rotary motion together, and a discharging opening of the stirring mill is provided with a separating device which can only enable the materials to pass through and limit the filling medium to pass through.
2. The cement raw meal production-increasing and consumption-reducing device according to claim 1, wherein the non-fine powder outlet of the fine powder separator comprises a coarse powder outlet and a medium powder outlet, the coarse powder outlet is communicated with a first interface of a three-way valve, a second interface of the three-way valve is communicated with a feed inlet of a stirring mill, and a third interface of the three-way valve is communicated with a feed inlet of a roller press.
3. The cement raw meal production-increasing and consumption-reducing device according to claim 2, wherein the fine powder concentrator is an SRV-type powder concentrator.
4. The cement raw meal production and consumption reduction device according to claim 1, wherein the fine powder concentrator is an XR powder concentrator, the non-fine powder outlet of the XR powder concentrator is a coarse powder outlet, and the coarse powder outlet is communicated with a feed inlet of a stirring mill.
5. The cement raw meal production-increasing and consumption-reducing device according to claim 2, 3 or 4, wherein the finished product collecting device comprises a cyclone separator, a dust collector, a fan and a finished product conveying device, a fine powder outlet of the fine powder separator is connected with the cyclone separator, an air outlet of the cyclone separator is connected with the dust collector, a discharge outlet of the cyclone separator is connected with the finished product conveying device, a discharge outlet of the dust collector is connected with the finished product conveying device, and an air outlet of the dust collector is connected with the fan; the air outlet of the stirring mill is connected with the air inlet of the cyclone separator or the air inlet of the dust collector.
6. The cement raw material production-improving and consumption-reducing device according to claim 5, wherein the feed opening of the stirring mill is connected with a finished product conveying device.
7. The cement raw meal production-increasing and consumption-reducing device according to claim 5, wherein the feed opening of the stirring mill is connected with the feed opening of the raw meal selector through a first lifting machine.
8. The cement raw material production-increasing and consumption-reducing device according to claim 1, wherein a weighing bin is connected to a feed inlet of the roller press, and a coarse material outlet of the raw material powder concentrator is connected with the weighing bin through a second lifting machine.
9. The cement raw meal production-increasing and consumption-reducing device according to claim 1, wherein the discharge port of the roller press is connected through a first elevator and returned to the raw meal concentrator.
10. The cement raw meal production-increasing and consumption-reducing device according to claim 1, wherein the raw meal concentrator is a V-type concentrator.
CN202223298536.5U 2022-12-09 2022-12-09 Cement raw material production-improving and consumption-reducing equipment Active CN219356487U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223298536.5U CN219356487U (en) 2022-12-09 2022-12-09 Cement raw material production-improving and consumption-reducing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223298536.5U CN219356487U (en) 2022-12-09 2022-12-09 Cement raw material production-improving and consumption-reducing equipment

Publications (1)

Publication Number Publication Date
CN219356487U true CN219356487U (en) 2023-07-18

Family

ID=87142274

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202223298536.5U Active CN219356487U (en) 2022-12-09 2022-12-09 Cement raw material production-improving and consumption-reducing equipment

Country Status (1)

Country Link
CN (1) CN219356487U (en)

Similar Documents

Publication Publication Date Title
CN202921397U (en) Efficient crushing system for vertical mill
CN103230826A (en) Semi-finish grinding process and equipment
CN110860343A (en) External circulation system and process for raw material vertical mill
CN205887107U (en) Whole grinding system of cement roll squeezer of parallelly connected two selection powder machines
CN202162017U (en) Cement raw material preparation system for rolling machine
CN111822129A (en) Iron ore dry grinding and dressing device and process
CN211887326U (en) Grinding device for cement production
CN206881886U (en) Roller press Joint grinding system
CN219356487U (en) Cement raw material production-improving and consumption-reducing equipment
CN207102827U (en) Vertical roller grinder bypass classification drying raw material Preparation equipment
CN210304024U (en) Three-circulation closed-circuit grinding system
CN111921681A (en) Cement grinding system and method
CN202290296U (en) Production device for smelting steel tailings miropowder
CN107790266A (en) A kind of roll squeezer cement finish grinding system using entrained particle shaping
CN102225397B (en) Cement raw material preparation system for rolling machine
CN109569853B (en) Combined grinding system composed of ball mill and roller press
CN202921398U (en) Energy-saving and environment-friendly vertical mill crushing system
CN113953027B (en) Powder selecting and grinding integrated ball mill
CN113953062B (en) Self-sorting ball milling system for grinding superfine materials
CN210545598U (en) Semi-final grinding system
CN209226853U (en) A kind of double closed-circuit grinding systems of roll squeezer cement
CN211463353U (en) External circulation system of raw material vertical mill
CN113457816B (en) System and process for preparing spheroidized powder by adopting vertical grinding machine
CN203791216U (en) Novel double-stage high-efficiency powder selecting machine
CN113399032B (en) Efficient gradient combined grinding system and grinding process

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant