CN113399058A - Efficient vertical dry stirring mill and application thereof - Google Patents
Efficient vertical dry stirring mill and application thereof Download PDFInfo
- Publication number
- CN113399058A CN113399058A CN202110590737.3A CN202110590737A CN113399058A CN 113399058 A CN113399058 A CN 113399058A CN 202110590737 A CN202110590737 A CN 202110590737A CN 113399058 A CN113399058 A CN 113399058A
- Authority
- CN
- China
- Prior art keywords
- grinding
- disc
- grinding cylinder
- plate
- stirring
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating 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
- B02C17/16—Mills in which a fixed container houses stirring means tumbling the charge
- B02C17/163—Stirring means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating 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
- B02C17/10—Disintegrating 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating 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
- B02C17/18—Details
- B02C17/1815—Cooling or heating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating 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
- B02C17/18—Details
- B02C17/183—Feeding or discharging devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating 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
- B02C17/18—Details
- B02C17/183—Feeding or discharging devices
- B02C17/1835—Discharging devices combined with sorting or separating of material
- B02C17/184—Discharging devices combined with sorting or separating of material with separator arranged in discharge path of crushing zone
- B02C17/1845—Discharging devices combined with sorting or separating of material with separator arranged in discharge path of crushing zone with return of oversize material to crushing zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating 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
- B02C17/18—Details
- B02C17/183—Feeding or discharging devices
- B02C17/186—Adding fluid, other than for crushing by fluid energy
- B02C17/1875—Adding fluid, other than for crushing by fluid energy passing gas through crushing zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating 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
- B02C17/18—Details
- B02C17/22—Lining for containers
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a high-efficiency vertical dry stirring mill and application thereof, wherein the mill comprises a shell, a spiral feeder, a grinding cylinder, a main shaft, a stirrer, an activation lining plate, a discharging device, a driving device, a powder concentrator and an air supply device; a powder concentrator, a spiral feeder, a grinding cylinder, a discharge device and a driving device are sequentially arranged in the shell from top to bottom, a coarse particle return pipe of the powder concentrator and a discharge end of the spiral feeder are communicated with the top of the grinding cylinder, a main shaft and a stirrer are arranged in the grinding cylinder, the stirrer is fixed on the main shaft, an activation lining plate is arranged on the inner wall of the grinding cylinder, and the discharge device is arranged at the bottom of the grinding cylinder and fixed on the main shaft; the bottom of the main shaft is connected with a driving device; an annular air chamber is formed in a space between the grinding cylinder and the shell, and the air supply device is arranged below the discharging device and is opposite to the annular air chamber. The invention has the advantages of high grinding efficiency, good separation effect of finished products, no over-grinding phenomenon, good heat dissipation, accurate control of product fineness, reduction of energy consumption and good improvement of equipment reliability and stability.
Description
Technical Field
The invention relates to the technical field of stirring mills, in particular to a high-efficiency vertical dry stirring mill and application thereof.
Background
The stirring mill consists of a driving device, a cylinder, a stirrer and a grinding medium, wherein the cylinder is usually a cylinder, the stirrer is usually a spiral type, a rod pin type or a disc type, and the grinding medium is usually a spherical medium such as steel balls, corundum balls, zirconium balls or natural river sand, pebbles and the like. When the grinding device works, the stirring mill cylinder is static, the driving device drives the stirrer to rotate, the stirrer directly applies power to the grinding medium, the grinding medium and the material perform multidimensional circulating motion and autorotation motion, and effective grinding of the material is realized through the grinding, shearing and impacting effects of the medium balls. The grinding efficiency depends on the total number of times that the single particle is effectively collided by the medium in a stirring mill and the energy intensity transmitted to the particle by the medium in a single collision process. The stirring mill has high energy density, low fine grinding energy consumption, simple process, uniform product granularity distribution and high product sphericity, and is widely applied to the fields of fine grinding and regrinding in recent years. According to the grinding environment, a stirring mill can be divided into a dry method and a wet method; according to the structural form, the stirring mill can be divided into a horizontal type and a vertical type.
At present, the vertical wet stirring mill is large-sized and is widely applied to the mineral processing industry, materials are fed from the upper part or the lower part of a grinding cylinder, a stirrer rotates to enable grinding media and the materials to do multidimensional movement to realize the crushing of the materials, the ground qualified products are overflowed and discharged from the top of the grinding cylinder along with slurry, the separation of the qualified products from coarse particles and the grinding media is realized, the continuous operation is stable, and the process is mature. The prior dry vertical stirring mill has the same structure and grinding principle as a wet stirring mill, but has smaller specification, the motion state of the material is completely different from the wet environment due to the difference of the grinding environment, the material is fed from the upper end of a grinding cylinder and gradually moves to the bottom of the grinding cylinder under the action of gravity, a stirrer rotates in the process to enable grinding media and the material to move in multiple dimensions to realize the crushing of the material, and qualified products at the bottom of the cylinder are separated from the media and coarse particles in a screening mode and are discharged from the bottom of the grinding cylinder. However, the prior dry vertical stirring mill has the following problems in application:
(1) the existing dry-method vertical stirring mill separates and discharges qualified products, coarse particles and grinding media in a screening mode, has poor separation effect, and cannot discharge the qualified products in time, so that the over-grinding of partial materials is serious, the stability of equipment is reduced, and the large-scale equipment is limited;
(2) in the existing dry-method vertical stirring mill, materials and media only generate strong collision motion near a stirrer, the rotating speed of the stirrer is low, and the moving speed of the materials from top to bottom is too high, so that the grinding area is small, the grinding time is short, the grinding effect is weak, and the grinding efficiency is low;
(3) the fineness of a product is difficult to accurately control by the conventional dry vertical stirring mill, and if grading equipment is configured, the process flow is complex;
(4) the dry grinding generates a large amount of heat, potential safety hazards such as high-temperature scalding and dust explosion exist, the existing dry vertical stirring mill lacks heat dissipation measures, and the equipment reliability is poor.
Chinese patent publication No. CN2341714 discloses a vertical stirring mill integrating classified grinding, which mainly comprises a stirring ball mill device, a classifying device and an air sweeping device, wherein the classifying device is arranged above the stirring ball mill device, and raw materials are forcibly fed into the bottom of a stirring barrel from the lower end of a stirring central shaft. The air sweeping device is composed of an air inlet pipe and an air ring, air entering from the air inlet pipe passes through the air ring, then enters the barrel from the outer side of the barrel through the barrel wall grate seam, and the ground material is taken out of the barrel through the top of the stirring barrel and enters the grading device. After the ground material is classified by the classifying device, fine particles are discharged from the discharge hole, and coarse particles are returned to the feeding pipe through the material returning cone for secondary grinding. On one hand, the technology has defects in material motion control, gas enters the cylinder through the side wall grid seam, the rear direction is radial, the motion state is disordered after the gas is extruded, the upward motion of the material cannot be effectively promoted, the qualified product cannot be discharged in time, and the problem of over-grinding occurs; on the other hand, the gas is extruded before entering the cylinder, the pressure is increased while heat is released, the heat is superposed with the heat generated by grinding, so that high temperature is generated in the mixing cylinder, potential safety hazards such as high-temperature scald, dust explosion and the like exist, the reliability of the equipment is poor, and the resistance of the air supply equipment is increased; in addition, this technique only combines a grinding device and a classifying device, and fails to improve the grinding efficiency from the viewpoint of mechanism.
Chinese patent publication No. CN207667746U discloses a dry stirring classifying media mill, which comprises a cylindrical crushing cavity, a crushing shaft, a stirring rod, a classifier and the like, wherein the classifier is arranged above the crushing cavity. The material is fed into the feed inlet above the crushing cavity for grinding, the gas is fed in through the upper gas inlet, moves downwards in the gas chamber between the crushing cavity and the outer shell, enters the crushing cavity through the gas blowing port at the bottom of the crushing cavity, and is lifted upwards to the classifier. After the material is classified by the classifier, fine particles are discharged from the discharge hole, and coarse particles return to the crushing cavity for continuous grinding. On one hand, the feeding and discharging paths of the technology have conflict, the feeding moves from top to bottom and the discharging moves from bottom to top in the same space, so that even if part of materials are brought to the classifier without being ground, part of finished products are blocked and cannot enter the classifier, meanwhile, the ascending air flow enters the feeding pipe, the feeding is not smooth, and the stability of the equipment is reduced. On the other hand, because the material piles up, gaseous by the gas outlet of smashing the chamber bottom get into smash the chamber before also receive the extrusion, release the heat when pressure increases, its heat superposes with the heat that grinds the production mutually, leads to producing high temperature in the churn, has potential safety hazards such as high temperature scald, dust explosion, equipment reliability is poor, has also increased air supply equipment's resistance simultaneously. In addition, this technique also fails to improve the polishing efficiency from the mechanical viewpoint.
Disclosure of Invention
The invention provides a high-efficiency vertical stirring mill for solving the problems of low grinding efficiency, poor separation effect of finished products, difficult heat dissipation, difficult control of fineness of the finished products, serious over grinding and the like of the conventional dry vertical stirring mill, which improves the grinding efficiency of the dry vertical stirring mill, accurately controls the fineness of the products and improves the reliability and stability of equipment.
Another object of the present invention is to provide an application of the high-efficiency vertical dry-process stirring mill.
The invention is realized in this way, a high-efficiency vertical dry stirring mill, which comprises a shell, a screw feeder, a grinding cylinder, a main shaft, a stirrer, an activation lining plate, a discharging device, a driving device, a powder concentrator and an air supply device,
the grinding machine comprises a shell, a coarse particle return pipe of the powder concentrator, a coarse particle return pipe of the coarse particle return pipe, a grinding cylinder, a discharging device and a driving device, wherein the coarse particle return pipe of the powder concentrator and the discharging end of the spiral feeding machine are communicated with the top of the grinding cylinder; the upper part of the main shaft is positioned in the grinding cylinder, and the bottom of the main shaft is connected with the driving device; the space between the grinding cylinder and the shell forms an annular air chamber, and the air supply device is arranged below the discharge device and is opposite to the annular air chamber.
Preferably, the screw feeder is horizontally arranged at one side above the grinding cylinder, and the feeding end of the screw feeder is positioned outside the mill shell and is provided with a feeding hopper; the discharge end of the screw feeder is positioned in the shell of the mill and is connected with a coarse particle return pipe of the powder concentrator.
Preferably, the grinding cylinder is cylindrical, the upper end of the grinding cylinder is covered with a detachable conical cover plate, and a coarse particle return pipe of the powder concentrator penetrates through the cover plate and extends into the grinding cylinder.
Preferably, the diameter of the shell is 1.1-1.5 times of that of the grinding cylinder, the lower portion of the shell is connected with a ground foundation to support the grinding machine, the middle portion of the shell and the outer wall of the grinding cylinder form an annular air chamber, and the upper portion of the shell is a working area of the powder concentrator. Except for the basic part, the shell adopts a full-sealed design, so that dust pollution is avoided.
Preferably, a feeding bulk material disc is detachably fixed to the top of the main shaft, the feeding bulk material disc is composed of a bulk material disc and bulk material baffles, a plurality of trapezoidal bulk material baffles are evenly arranged on the bulk material disc, and the diameter of the bulk material disc is 10-50 mm larger than that of the main shaft.
Preferably, the agitator is the disc type agitator, comprises stirring disc and stirring rod, stirring disc detachably is fixed in on the main shaft, and stirring disc's external diameter is 0.7 ~ 0.9 of grinding vessel diameter, and stirring disc respectively evenly sets up a plurality of streamlined stirring rods from top to bottom, and the stirring rod separates stirring disc quotation for a plurality of parts, and every part sets up a plurality of clearing hole, and the aperture of clearing hole is 0.1 ~ 0.2 of stirring disc diameter.
Preferably, the activating lining plate is in an intermittent spiral ascending mode, the ascending direction is consistent with the rotating direction of the stirrer, the ascending angle is 2-10 degrees, the thickness of the activating lining plate is 0.01-0.1 of the diameter of the grinding cylinder, and the length of a single lath of the activating lining plate is 0.05-0.25 of the diameter of the grinding cylinder.
Preferably, the discharge device consists of a disc-shaped grate plate, a cylindrical grate plate, a scraper plate and a material guide plate, the top of the cylindrical grate plate is detachably connected with the grinding cylinder, the disc-shaped grate plate is detachably fixed at the bottom of the cylindrical grate plate, the width of a grate seam of the disc-shaped grate plate and the width of a grate seam of the cylindrical grate plate are both 0.6-0.9 of the diameter of a grinding medium, the height of the cylindrical grate plate is 0.05-0.25 of the height of the grinding cylinder, and the diameter of the disc-shaped grate plate is consistent with the diameter of the grinding cylinder; the scraping plate is detachably fixed on the main shaft and rotates along with the main shaft, the distance between the bottom of the scraping plate and the disc-shaped grate plate is 0.5-0.8 of the diameter of the grinding medium, and the material facing side in the same direction as the rotating direction is in a streamline design; the material guide plate is located below the disc-shaped grid plate, is detachably fixed on the main shaft and rotates along with the main shaft, the diameter of the material guide plate is 10-50 mm larger than that of the disc-shaped grid plate, and the material guide plate is composed of a material guide disc and a plurality of triangular material guide baffle plates which are uniformly arranged on the material guide disc.
Preferably, the air supply device consists of air inlets, a homogenizing air channel and a homogenizing air ring, wherein the number of the air inlets is even, the air inlets are symmetrically arranged and connected with air supply equipment; the homogenizing air channel is an annular cavity, the width of an outlet of the homogenizing air channel is the same as that of the annular air chamber, and the height of the homogenizing air channel is 200-1000 mm; the homogenizing air ring is arranged above the homogenizing air channel and is in an annular grid form, and the width of the homogenizing air ring is consistent with the width of an outlet of the homogenizing air channel.
Preferably, the mill further comprises an air locking and ball adding device, wherein the air locking and ball adding device is arranged on one side above the grinding cylinder and consists of an air locking feeder and a chute, and the chute penetrates through a cover plate of the grinding cylinder and extends into the grinding cylinder to supplement grinding media into the grinding cylinder.
The materials are fed into the grinding cylinder through a screw feeder above the grinding cylinder and are uniformly dispersed to the cross section of the grinding cylinder through a feeding bulk material disc. The driving device drives the stirrer to rotate, the grinding medium and the materials do multidimensional circulating motion and autorotation motion under the high-speed rotating and stirring action of the stirrer, and meanwhile, the grinding medium and the materials are excited and activated by the cylinder wall activating lining plate, the motion severity and range are further increased, and particles are crushed under the comprehensive actions. In the grinding process, the materials gradually move to the bottom of the grinding cylinder under the action of gravity and are discharged into an annular air chamber between the grinding cylinder and the shell through a discharge device at the bottom of the grinding cylinder. An air inlet below the grinding cylinder continuously blows cold air into the annular air chamber, so that the grinding cylinder can be continuously cooled, negative pressure is provided for the discharging device, and meanwhile, the materials are lifted upwards to the powder concentrator above the grinding cylinder. After the materials are sorted, the qualified products are discharged from the upper part of the powder concentrator, and the coarse particles return to the grinding cylinder for grinding again. The whole equipment is designed in a full-sealed mode, and the upper end of the grinding cylinder is provided with an air locking and ball adding device for supplementing grinding medium balls.
The high-efficiency vertical dry stirring mill can be applied to a cement roller press combined energy-saving grinding process system, a cement vertical mill combined energy-saving grinding process system, a dry material fine powder production process system or a sticky wet material fine powder production process system.
The invention has the following advantages and beneficial effects:
1) the stirring speed is high: the disc type stirrer has the advantages of large working area, strong stirring effect, small working resistance and strong wear resistance, can work for a long time at a high rotating speed, is assisted by a totally-enclosed shell, a high-speed stirring shaft, a continuous cooling measure and a continuous discharging measure, can realize high-speed stirring, has the highest linear velocity at the edge of the stirrer of 22m/s, can promote disordered movement of grinding media and materials at a high stirring speed, improves the total number of effective collision between particles and media, and improves the energy intensity of the media transferred to the particles in a single collision process, thereby improving the grinding efficiency.
2) The collision effect of the particles and the medium is strong: the activation lining plate in the intermittent spiral ascending mode is arranged on the inner wall of the grinding cylinder, disordered movement of grinding media and materials near the cylinder wall is promoted, meanwhile, the stirring rod is arranged on the stirrer, movement of the grinding media and the materials near the stirrer is promoted, the total number of effective collision between particles and the media and the energy intensity transmitted to the particles by the media in a single collision process are increased, and the grinding efficiency is further improved.
3) The material motion is smooth: the discharge device is arranged at the lower end of the grinding cylinder, and adopts a form of upper feeding and lower discharge, so that feeding and discharge paths are clear, and the material moves smoothly; the ground materials can be discharged under the combined action of negative pressure and screening, so that over-grinding is avoided.
4) The continuous cooling effect is good: the air supply device is arranged below the discharging device, and the air inlet continuously supplies cold air, so that heat generated by grinding can be taken away in time, the grinding cylinder is continuously cooled, the potential safety hazard of high temperature is avoided, and the reliability of the equipment is improved. The cold air supplied has another two functions at the same time, namely, the materials in the annular air chamber are lifted upwards to the powder concentrator; and secondly, negative pressure is provided for the discharging device, and the discharging of qualified products is promoted.
5) Grinding and grading integrally: a powder concentrator is arranged above the grinding cylinder, ground materials enter the powder concentrator for grading, finished products are discharged, coarse particles return to the mill for grinding again, internal circulation can be achieved, production links are simplified, system equipment is reduced, and equipment investment is reduced.
6) The stirring mill has the advantages of high grinding efficiency, good separation effect of finished products, no over-grinding phenomenon, good heat dissipation, capability of accurately controlling the fineness of the products, energy consumption reduction, and good equipment reliability and stability improvement.
Drawings
FIG. 1 is a schematic structural diagram of a high-efficiency vertical dry-process stirring mill provided by an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a feeding bulk material tray provided by an embodiment of the invention;
FIG. 3 is a schematic structural diagram of a stirrer provided in the embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a stirring rod of the stirrer provided by the embodiment of the invention;
FIG. 5 is a schematic diagram of an activation liner provided in accordance with an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a discharging device provided in the embodiment of the present invention;
fig. 7 is a schematic structural view of a material guide plate of a discharging device provided in an embodiment of the invention;
fig. 8 is a schematic cross-sectional view of a scraper plate of a discharge device provided in an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a wind supply device provided in an embodiment of the present invention;
FIG. 10 is a flow chart of a cement roller press combined energy-saving grinding process system provided by an embodiment of the invention;
fig. 11 is a flow chart of a cement vertical mill combined energy-saving grinding process system provided by the embodiment of the invention;
FIG. 12 is a flow diagram of a dry feed fines production process system according to an embodiment of the present disclosure;
fig. 13 is a flow chart of a system for producing fine powder from a sticky and wet material according to an embodiment of the present invention.
In the figure: 1. a screw feeder; 2. a grinding cylinder; 2-1, a cover plate; 3. a housing; 4. a drive device; 5. a main shaft; 6. feeding bulk material trays; 6-1, bulk material disc; 6-2, bulk material baffle plates; 7. a stirrer; 7-1, stirring a disc; 7-2, a stirring rod; 7-3, through the hole; 8. activating the lining plate; 9. a discharge device; 9-1, disk-shaped grid plates; 9-2, cylindrical grid plates; 9-3, scraping plates; 9-4, a material guide plate; 9-4-1, a material guiding disc; 9-4-2, a material guide baffle; 10. an air supply device; 10-1, an air inlet; 10-2, homogenizing an air duct; 10-3, homogenizing an air ring; 11. selecting a powder machine; 12. a wind locking and ball adding device; 12-1, locking the air feeder; 12-2, a chute; 13. an annular air chamber;
14. a hoist; 15. a combined powder concentrator; 16. a raw material bin; 17. a roll squeezer; 18. a cyclone dust collector; 19. a circulating fan; 20. a first dust collector; 21. a first tail exhaust fan; 22. a first conveying chute; 23. a solids flow meter; 24. a high-efficiency vertical dry stirring mill; 25. a second dust collector; 26. a second tail exhaust fan; 27. a second conveying chute; 28. a fine powder blending bin; 29. a coarse powder blending bin; 30. a fine powder measuring hopper; 31. a coarse powder measuring hopper; 32. a mixer; 33. putting into a grinding adhesive tape machine; 34. vertical roller milling; 35. discharging the adhesive tape outside; 36. a third dust collector; 37. a third conveying chute; 38. a tail exhaust fan III; 39. and a dryer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 9, an embodiment of the present invention provides a high-efficiency vertical dry stirring mill, which includes a housing 3, a screw feeder 1, a grinding cylinder 2, a main shaft 5, a stirrer 7, an activation lining plate 8, a discharging device 9, a driving device 4, a powder concentrator 11, an air locking and ball adding device 12, and an air supply device 10, wherein the powder concentrator 11, the screw feeder 1, the grinding cylinder 2, the discharging device 9, and the driving device 4 are sequentially installed in the housing 3 from top to bottom.
The screw feeder 1 is horizontally arranged on one side above the grinding cylinder 2, and the feeding end of the screw feeder 1 is positioned outside the mill shell and is provided with a feeding hopper; the discharge end of the screw feeder 1 is positioned in the shell of the mill and is connected with a coarse particle return pipe of the powder concentrator 11.
The grinding cylinder 2 is cylindrical, the grinding cylinder 2 is fixed with the shell 3 through a support, a detachable conical cover plate 2-1 covers the upper end of the grinding cylinder 2, and a coarse particle return pipe and an air locking and ball adding device 12 of the powder concentrator 11 penetrate through the cover plate 2-1 and extend into the grinding cylinder 2. The diameter of the grinding cylinder 2 is 2000mm, the height is 4000mm, and the grinding cylinder 2 is filled with 4mm of spherical grinding media.
The shell 3 is arranged on the periphery of the grinding cylinder 2, the diameter of the shell is 2400mm, the lower portion of the shell 3 is connected with a ground foundation to support equipment, an annular air chamber 13 is formed between the middle portion of the shell and the outer wall of the grinding cylinder 2, and the upper portion of the shell is a working area of the powder concentrator 11. Except for the basic part, the shell 3 adopts a full-sealed design, so that dust pollution is avoided.
A main shaft 5 and a stirrer 7 are arranged in the grinding cylinder 2, the stirrer 7 is detachably fixed on the main shaft 5, an activation lining plate 8 for promoting the disordered movement of grinding media and materials near the cylinder wall of the grinding cylinder 2 is arranged on the inner wall of the grinding cylinder 2, the discharging device 9 is arranged at the bottom of the grinding cylinder 2, and the discharging device 9 is detachably fixed on the main shaft 5; the space between the grinding cylinder 2 and the shell 3 forms an annular air chamber 13, and the air supply device 10 is arranged below the discharge device 9 and is opposite to the annular air chamber 13.
The driving device 4 is arranged below the mill and adopts a driving mode of permanent magnetic direct drive or motor plus speed reducer.
The main shaft 5 is a high-speed main shaft, the upper part of the main shaft 5 is positioned in the grinding cylinder 2, and the bottom of the main shaft is connected with the driving device 4; the main shaft 5 has a diameter of 150 mm.
The top of the main shaft 5 is detachably fixed with a feeding bulk material tray 6, the feeding bulk material tray 6 is composed of a bulk material disc 6-1 and a bulk material baffle 6-2, the 6 trapezoidal bulk material baffles 6-2 are uniformly arranged on the bulk material disc 6-1, and the diameter of the bulk material disc 6-1 is 160 mm. The feeding bulk material disc 6 rotates along with the main shaft 5 when working, and the materials are evenly dispersed on the cross section of the grinding cylinder 2 through centrifugal force.
The stirrer 7 is a disc stirrer 7 and comprises a stirring disc 7-1 and stirring rods 7-2, the stirring disc 7-1 is detachably fixed on the main shaft 5, the outer diameter of the stirring disc 7-1 is 1600mm, 4 streamline stirring rods 7-2 are uniformly arranged on the upper portion and the lower portion of the stirring disc 7-1 respectively, the purpose is to promote disordered movement of grinding media and maintain low rotation resistance through streamline design, the stirring rods 7-2 divide the disc surface of the stirring disc 7-1 into 4 parts, each part is provided with 3 through holes 7-3, and the aperture of each through hole 7-3 is 230 mm. The disc type stirrer 7 has the characteristics of large working area, strong stirring effect, small working resistance, strong wear resistance and the like, can work for a long time at a high rotating speed, and has the edge linear velocity of 8-22m/s, wherein the edge linear velocity of the stirrer 7 is preferably 15m/s in the embodiment. Higher rotational speed can promote the unordered motion of grinding medium and material, has increased the total number of times of granule and medium effective collision and the energy intensity size that the medium transmitted to the granule in single collision to grinding efficiency has been promoted.
The activating lining plate 8 is in an intermittent spiral ascending mode, the ascending direction is consistent with the rotating direction of the stirrer 7, the ascending angle is 3 degrees, the thickness of the activating lining plate 8 is 50mm, and the length of a single lath of the activating lining plate 8 is 400 mm. Activation welt 8 can promote the unordered motion of grinding media and material near the 2 section of thick bamboo walls of grinding vessel, and the medium and the material that move to 2 section of thick bamboo walls of grinding vessel have with the same trend of agitator 7 direction of rotation, can continue adherence upward movement along the activation welt 8 that moves upward, and partly lose kinetic energy's medium and material receive the effect of gravity downstream, and the conflict of up-and-down motion has promoted granule and effective collision of medium, can promote grinding efficiency. The discontinuous design can avoid the long-term accumulation of materials on the activation lining plate 8 and prevent the materials from being over-ground.
The discharging device 9 consists of a disc-shaped grate plate 9-1, a cylindrical grate plate 9-2, a scraping plate 9-3 and a material guide plate 9-4, the top of the cylindrical grate plate 9-2 is detachably connected with the grinding cylinder 2, the disc-shaped grate plate 9-1 is detachably fixed at the bottom of the cylindrical grate plate 9-2, the width of a grate seam of the disc-shaped grate plate 9-1 and the width of a grate seam of the cylindrical grate plate 9-2 are both 3mm, the height of the cylindrical grate plate 9-2 is 300mm, and the diameter of the disc-shaped grate plate 9-1 is 2000 mm; the scraping plate 9-3 is detachably fixed on the main shaft 5 and rotates along with the main shaft 5, the distance between the bottom of the scraping plate 9-3 and the disc-shaped grate plate 9-1 is 3mm, the material facing side in the same direction as the rotating direction is in a streamline design, the material is stirred while the resistance is kept low, the discharging efficiency is improved, and meanwhile, a grinding dead zone at the bottom of the cylinder is avoided; the material guide plate 9-4 is located below the disc-shaped grate plate 9-1, is detachably fixed on the main shaft 5 and rotates along with the main shaft 5, the diameter of the material guide plate 9-4 is 2050mm, and the material guide plate 9-4 is composed of a material guide disc 9-4-1 and 4-8 triangular material guide baffle plates 9-4-2 uniformly arranged on the material guide disc 9-4-1. When the device works, materials and grinding media are partially loosened under the rotating and stirring action of the scraper plate 9-3, a part of the materials are discharged onto the material guide plate 9-4 from the bottom disc-shaped grate plate 9-1 under the comprehensive action of gravity and the suction force of the negative pressure outside the cylinder, and then are uniformly dispersed to the annular air chamber 13 under the action of centrifugal force; a part of materials are discharged to the annular wind chamber 13 from the cylindrical grate plate 9-2 under the comprehensive action of centrifugal force and the outside negative pressure suction force. The two parts of materials discharged to the annular air chamber 13 are lifted to the powder concentrator 11 by rising cold air.
The air supply device 10 consists of an air inlet 10-1, a homogenizing air channel 10-2 and a homogenizing air ring 10-3, wherein 2 air inlets 10-1 are symmetrically arranged and connected with air supply equipment; the homogenizing air duct 10-2 is an annular cavity, the width of an outlet is 150mm, and the height is 400 mm; the homogenizing air ring 10-3 is arranged above the homogenizing air channel 10-2 and is in an annular grid form, and the width of the homogenizing air ring is 150mm, which is consistent with the width of an outlet of the homogenizing air channel 10-2. The homogenizing air duct 10-2 and the homogenizing air ring 10-3 have the function of enabling cold air supplied by the air inlet 10-1 to be uniformly conveyed upwards along the circumferential direction. The cold air supplied has three functions: firstly, lifting the materials in the annular air chamber 13 to the powder concentrator 11; secondly, negative pressure is provided for the discharging device 9 to promote the discharge of qualified products; thirdly, in time take away the heat that grinds the production, continuously cool off grinding vessel 2, for high-speed stirring grinds the stable environment that provides, avoid the potential safety hazard of high temperature, improve equipment's reliability.
The powder concentrator 11 is arranged above the grinding cylinder 2 and used for performing thickness classification on materials, qualified products are discharged from the upper part of the powder concentrator 11, and coarse particles return to the grinding cylinder 2 through a coarse particle return pipe of the powder concentrator 11 and are ground again.
The air-locking ball-adding device 12 is arranged on one side above the grinding cylinder 2 and consists of an air-locking feeder 12-1 and a chute 12-2, and the chute 12-2 penetrates through a cover plate 2-1 of the grinding cylinder 2 and extends into the grinding cylinder 2 and is used for supplementing grinding media into the grinding cylinder 2.
The materials are fed into the grinding cylinder 2 through the screw feeder 1 above the grinding cylinder 2 and are uniformly dispersed to the cross section of the grinding cylinder 2 through the feeding bulk material disc 6. The driving device 4 drives the stirrer 7 to rotate, the grinding medium and the materials do multidimensional circulating motion and autorotation motion under the high-speed rotating and stirring action of the stirrer 7, and meanwhile, the grinding medium and the materials are excited and activated by the cylinder wall activating lining plate 8, the motion severity and range are further increased, and the particles are crushed under the comprehensive actions. In the grinding process, the materials gradually move to the bottom of the grinding cylinder 2 under the action of gravity and are discharged into an annular air chamber 13 between the grinding cylinder 2 and the shell 3 through a discharge device 9 at the bottom of the grinding cylinder 2. An air inlet 10-1 below the grinding cylinder 2 continuously blows cold air into the annular air chamber 13, so that the grinding cylinder 2 can be continuously cooled, negative pressure is provided for the discharging device 9, and materials are lifted upwards to a powder concentrator 11 above the grinding cylinder 2. After the materials are sorted, qualified products are discharged from the upper part of the powder concentrator 11, and coarse particles return to the grinding cylinder 2 for grinding again. The whole equipment is designed in a full-sealed mode, and the air locking and ball adding device 12 is arranged at the upper end of the grinding cylinder 2 and used for supplementing grinding medium balls.
Referring to fig. 10, a combined energy-saving grinding process system for a cement roller press comprises a lifter 14, a combined powder concentrator 15, a raw material bin 16, a roller press 17, a cyclone dust collector 18, a circulating fan 19, a first dust collector 20, a first tail exhaust fan 21, a first conveying chute 22, a solid flow meter 23, a high-efficiency vertical dry stirring mill 24, a second dust collector 25, a second tail exhaust fan 26, a second conveying chute 27, a fine powder blending bin 28, a coarse powder blending bin 29, a fine powder metering hopper 30, a coarse powder metering hopper 31 and a mixer 32. During production, cement raw materials are lifted by the lifting machine 14 and then fed to the combined type powder concentrator 15 for classification, classified coarse particles enter the raw material bin 16 and are stably fed to the roller press 17 through the raw material bin 16 for grinding, ground materials return to the combined type powder concentrator 15 through the lifting machine 14, and classified products serve as intermediate products I which are collected by the cyclone dust collector 18 and the dust collector I20 and then enter the conveying chute I22. The intermediate product in the first conveying chute 22 is divided into two parts, one part is conveyed to a coarse powder blending bin 29, the other part is conveyed to a high-efficiency vertical dry stirring mill 24 for further fine grinding, and the proportion of the two parts is controlled by a solid flow meter 23 and a valve. And a product obtained after fine grinding by the high-efficiency vertical dry stirring mill 24 is used as a second intermediate product, is collected by a second dust collector 25, and is conveyed to a fine powder blending bin 28 through a second conveying chute 27. The two intermediate products in the fine powder blending bin 28 and the coarse powder blending bin 29 are sent to a mixer 32 to be mixed according to a certain mass ratio through a fine powder weighing hopper 30 and a coarse powder weighing hopper 31, and the final cement finished product is obtained. According to the process, the cement product is prepared by mixing the coarse powder prepared by the roller press 17 and the fine powder prepared by the efficient vertical dry-process stirring mill 24 to a certain specific surface area and fineness, so that the respective advantages of coarse grinding of the roller press 17 and fine grinding of the efficient vertical dry-process stirring mill 24 are exerted, the energy consumption of the roller press 17 for preparing the fine powder is reduced, the problem of large vibration when the roller press 17 grinds the fine powder is solved, the energy consumption is saved, the carbon dioxide emission is reduced, and meanwhile, the particle sphericity produced by the efficient vertical dry-process stirring mill 24 is higher, and compared with the final grinding by singly adopting the roller press 17, the performance of the cement is improved.
Referring to fig. 11, a cement vertical mill combined energy-saving grinding process system includes a lifter 14, a mill-in adhesive tape machine 33, a vertical roller mill 34, a mill-out adhesive tape machine 35, a first dust collector 20, a first tail exhaust fan 21, a first conveying chute 22, a solid flow meter 23, a high-efficiency vertical dry-process stirring mill 24, a second dust collector 25, a second tail exhaust fan 26, a second conveying chute 27, a fine powder blending bin 28, a coarse powder blending bin 29, a fine powder metering hopper 30, a coarse powder metering hopper 31 and a mixer 32. During production, cement raw materials are fed to the vertical roller mill 34 for grinding through the hoister 14 and the mill-in adhesive tape machine 33, and a ground product is used as an intermediate product I and enters the first conveying chute 22 after being collected by the first dust collector 20. The intermediate product in the first conveying chute 22 is divided into two parts, one part is conveyed to a coarse powder blending bin 29, the other part is conveyed to a high-efficiency vertical dry stirring mill 24 for further fine grinding, and the proportion of the two parts is controlled by a solid flow meter 23 and a valve. And a product obtained after fine grinding by the high-efficiency vertical dry stirring mill 24 is used as a second intermediate product, is collected by a second dust collector 25, and is conveyed to a fine powder blending bin 28 through a second conveying chute 27. The two intermediate products in the fine powder blending bin 28 and the coarse powder blending bin 29 are sent to a mixer 32 to be mixed according to a certain mass ratio through a fine powder weighing hopper 30 and a coarse powder weighing hopper 31, and the final cement finished product is obtained. According to the process, the cement product is prepared by mixing the coarse powder prepared by the vertical roller mill 34 and the fine powder prepared by the high-efficiency vertical dry stirring mill 24 to a certain specific surface area and fineness, so that the respective advantages of the coarse grinding by the vertical roller mill 34 and the fine grinding by the high-efficiency vertical dry stirring mill 24 are exerted, the grinding efficiency is improved, and the energy consumption is saved.
Referring to fig. 12, a dry material fine powder production process system includes a high-efficiency vertical dry stirring mill 24, a third dust collector 36, a third conveying chute 37, and a third exhaust fan 38. During production, raw materials with the water content of less than 5 percent are fed into a high-efficiency vertical dry stirring mill 24, after grinding, qualified products are discharged from the upper end of the mill, collected by a third dust collector 36 and then sent to the next link by a third conveying chute 37.
Referring to fig. 13, a process system for producing fine powder from sticky wet materials includes a dryer 39, a high-efficiency vertical dry-process stirring mill 24, a third dust collector 36, a third conveying chute 37, and a third exhaust fan 38. During production, raw materials with the water content of more than or equal to 5% are fed into a dryer 39 for drying, fresh hot air and hot air discharged from a third dust collector 36 are introduced into one end of the dryer 39, air is discharged from the other end of the dryer to the third dust collector 36, the dried materials are fed into a high-efficiency vertical dry stirring mill 24, after grinding, qualified products are discharged from the upper end of the mill, and after being collected by the third dust collector 36, the materials are conveyed to the next link through a third conveying chute 37.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or some or all of the technical features may be equivalently replaced, and the modifications or the replacements may not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (11)
1. A high-efficiency vertical dry stirring mill is characterized by comprising a shell, a spiral feeder, a grinding cylinder, a main shaft, a stirrer, an activation lining plate, a discharging device, a driving device, a powder concentrator and an air supply device;
the grinding machine comprises a shell, a coarse particle return pipe of the powder concentrator, a coarse particle return pipe of the coarse particle return pipe, a grinding cylinder, a discharging device and a driving device, wherein the coarse particle return pipe of the powder concentrator and the discharging end of the spiral feeding machine are communicated with the top of the grinding cylinder; the upper part of the main shaft is positioned in the grinding cylinder, and the bottom of the main shaft is connected with the driving device; the space between the grinding cylinder and the shell forms an annular air chamber, and the air supply device is arranged below the discharge device and is opposite to the annular air chamber.
2. The high-efficiency vertical dry-process stirring mill as claimed in claim 1, wherein the screw feeder is horizontally arranged at one side above the grinding cylinder, the feeding end of the screw feeder is positioned outside the mill shell and is provided with a feeding hopper; the discharge end of the screw feeder is positioned in the shell of the mill and is connected with a coarse particle return pipe of the powder concentrator.
3. A high efficiency vertical dry agitator mill as claimed in claim 1, wherein the grinding bowl is cylindrical and has a detachable conical cover plate at its upper end, and the coarse particle return tube of the powder concentrator extends into the grinding bowl through the cover plate.
4. The high-efficiency vertical dry-stirring mill according to claim 1, wherein the diameter of the housing is 1.1 to 1.5 times the diameter of the grinding cylinder.
5. The efficient vertical dry stirring mill as claimed in claim 1, wherein a feeding bulk material tray is detachably fixed on the top of the main shaft, the feeding bulk material tray is composed of a bulk material disc and bulk material baffles, a plurality of trapezoidal bulk material baffles are uniformly arranged on the bulk material disc, and the diameter of the bulk material disc is 10-50 mm larger than that of the main shaft.
6. A high-efficiency vertical dry stirring mill as claimed in claim 1, wherein the stirrer is a disc stirrer and comprises a stirring disc and a stirring rod, the stirring disc is detachably fixed on the main shaft, the outer diameter of the stirring disc is 0.7-0.9 of the diameter of the grinding cylinder, a plurality of streamline stirring rods are uniformly arranged on the upper and lower sides of the stirring disc respectively, the stirring rod divides the surface of the stirring disc into a plurality of parts, each part is provided with a plurality of through holes, and the hole diameter of each through hole is 0.1-0.2 of the diameter of the stirring disc.
7. The efficient vertical dry-process stirring mill according to claim 1, wherein the activating lining plate is in an intermittent spiral ascending form, the ascending direction is consistent with the rotation direction of the stirrer, the ascending angle is 2-10 degrees, the thickness of the activating lining plate is 0.01-0.1 of the diameter of the grinding cylinder, and the length of a single plate strip of the activating lining plate is 0.05-0.25 of the diameter of the grinding cylinder.
8. The efficient vertical dry-process agitator mill according to claim 1, wherein the discharge device comprises a disc-shaped grate plate, a cylindrical grate plate, a scraper plate and a material guide plate, the top of the cylindrical grate plate is detachably connected with the grinding cylinder, the disc-shaped grate plate is detachably fixed at the bottom of the cylindrical grate plate, the width of the grate seam of the disc-shaped grate plate and the width of the grate seam of the cylindrical grate plate are both 0.6-0.9 of the diameter of the grinding medium, the height of the cylindrical grate plate is 0.05-0.25 of the height of the grinding cylinder, and the diameter of the disc-shaped grate plate is consistent with the diameter of the grinding cylinder; the scraping plate is detachably fixed on the main shaft and rotates along with the main shaft, the distance between the bottom of the scraping plate and the disc-shaped grate plate is 0.5-0.8 of the diameter of the grinding medium, and the material facing side in the same direction as the rotating direction is in a streamline design; the material guide plate is located below the disc-shaped grid plate, is detachably fixed on the main shaft and rotates along with the main shaft, the diameter of the material guide plate is 10-50 mm larger than that of the disc-shaped grid plate, and the material guide plate is composed of a material guide disc and a plurality of triangular material guide baffle plates which are uniformly arranged on the material guide disc.
9. The efficient vertical dry-process stirring mill according to claim 1, wherein the air supply device is composed of an even number of air inlets, a homogenizing air duct and a homogenizing air ring, and the air inlets are symmetrically arranged and connected with an air supply device; the homogenizing air channel is an annular cavity, the width of an outlet of the homogenizing air channel is the same as that of the annular air chamber, and the height of the homogenizing air channel is 200-1000 mm; the homogenizing air ring is arranged above the homogenizing air channel and is in an annular grid form, and the width of the homogenizing air ring is consistent with the width of an outlet of the homogenizing air channel.
10. A high efficiency vertical dry agitator mill as claimed in claim 1, further comprising an air lock and ball adding device disposed on the upper side of the grinding vessel and comprising an air lock feeder and a chute extending into the grinding vessel through the grinding vessel cover plate.
11. The use of the high-efficiency vertical dry-process mixing mill as claimed in any one of claims 1-10, wherein the high-efficiency vertical dry-process mixing mill is applicable to a cement roller press combined energy-saving grinding process system, a cement vertical mill combined energy-saving grinding process system, a dry material production fine powder process system, or a sticky wet material production fine powder process system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110590737.3A CN113399058B (en) | 2021-05-28 | 2021-05-28 | Efficient vertical dry stirring mill and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110590737.3A CN113399058B (en) | 2021-05-28 | 2021-05-28 | Efficient vertical dry stirring mill and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113399058A true CN113399058A (en) | 2021-09-17 |
| CN113399058B CN113399058B (en) | 2022-07-12 |
Family
ID=77675052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110590737.3A Active CN113399058B (en) | 2021-05-28 | 2021-05-28 | Efficient vertical dry stirring mill and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113399058B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113953029A (en) * | 2021-10-18 | 2022-01-21 | 天津水泥工业设计研究院有限公司 | Dry stirring mill and operation method thereof |
| CN113976277A (en) * | 2021-10-18 | 2022-01-28 | 天津水泥工业设计研究院有限公司 | Cement external circulation vertical mill combined high-performance grinding process system |
| CN114160259A (en) * | 2021-10-20 | 2022-03-11 | 北海凯洋生物科技有限公司 | Be used for fish meal homogenization equipment |
| CN114158601A (en) * | 2021-12-13 | 2022-03-11 | 荣成泰祥食品股份有限公司 | Marine organism lipoprotein separator |
| CN114643109A (en) * | 2022-03-18 | 2022-06-21 | 陇东学院 | Ultrasonic vertical ore mill with multi-stage screening function |
| CN115007281A (en) * | 2022-08-09 | 2022-09-06 | 合肥工业大学 | Vertical ball-milling device for metal powder processing |
| CN116273375A (en) * | 2023-03-07 | 2023-06-23 | 张艳 | Preparation process of probiotic powder |
| CN116809216A (en) * | 2023-08-31 | 2023-09-29 | 河北光辉实业有限公司 | Calcium powder grinding device with regulatory function |
| WO2024077902A1 (en) * | 2022-10-12 | 2024-04-18 | 深圳市尚水智能股份有限公司 | Medium grinder |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0111703A2 (en) * | 1982-11-16 | 1984-06-27 | FRYMA Maschinen AG | Mill for fluid milling material |
| CN2341714Y (en) * | 1998-04-30 | 1999-10-06 | 李征宇 | Super fine vertical stirring high energy ball mill |
| CN2395800Y (en) * | 1999-11-04 | 2000-09-13 | 吴学锋 | Composite stirring mill for producing ultra-thin powder by dry processing |
| CN201664620U (en) * | 2009-12-30 | 2010-12-08 | 平顶山煤业（集团）易成碳化硅制品有限公司 | Stirring mechanism of stirring grinding machine |
| CN203648638U (en) * | 2013-12-09 | 2014-06-18 | 宜昌思瑞科技有限公司 | Circulating barrel device of stirring mill |
| CN206083085U (en) * | 2016-09-28 | 2017-04-12 | 安徽马钢张庄矿业有限责任公司 | Be suitable for incompact drum of particulate bonding material to break up machine |
| CN107413463A (en) * | 2017-07-26 | 2017-12-01 | 芜湖市三山龙城新材料有限公司 | A kind of grinder and its application method |
| CN207127201U (en) * | 2017-08-28 | 2018-03-23 | 柳州市柳晶科技股份有限公司 | A kind of antiquated sand lapping device |
| CN207667746U (en) * | 2017-12-11 | 2018-07-31 | 山东惟远新材料装备有限公司 | Dry stirring is classified medium mill |
| CN207872349U (en) * | 2017-12-19 | 2018-09-18 | 苏州聚康新材料科技有限公司 | A kind of powdery paints classification collecting device |
| CN208244863U (en) * | 2018-01-22 | 2018-12-18 | 苏州市金鹰机械设备有限公司 | A kind of ball mill |
| CN110193406A (en) * | 2019-04-07 | 2019-09-03 | 锦州旭日新材料科技有限公司 | A kind of vertical air separation disintegrator for zirconium fluidizing chlorination industry |
| CN209952968U (en) * | 2019-04-23 | 2020-01-17 | 南京金升华包装材料有限公司 | Vertical continuous printing ink grinder |
| CN210159693U (en) * | 2019-05-14 | 2020-03-20 | 山东义科节能科技股份有限公司 | Dry-type stirring and grinding roller and dry-type stirring and grinding system |
| JP2020075235A (en) * | 2018-09-20 | 2020-05-21 | ネッツシュ−ファインマールテヒニック ゲーエムベーハー | Agitator ball mill and method for operating agitator ball mill |
| CN211514741U (en) * | 2019-10-30 | 2020-09-18 | 安徽儒特实业有限公司 | Novel sand mill |
| CN112741354A (en) * | 2021-03-17 | 2021-05-04 | 成都华宏生物科技有限公司 | Integrated feed production device and method |
-
2021
- 2021-05-28 CN CN202110590737.3A patent/CN113399058B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0111703A2 (en) * | 1982-11-16 | 1984-06-27 | FRYMA Maschinen AG | Mill for fluid milling material |
| CN2341714Y (en) * | 1998-04-30 | 1999-10-06 | 李征宇 | Super fine vertical stirring high energy ball mill |
| CN2395800Y (en) * | 1999-11-04 | 2000-09-13 | 吴学锋 | Composite stirring mill for producing ultra-thin powder by dry processing |
| CN201664620U (en) * | 2009-12-30 | 2010-12-08 | 平顶山煤业（集团）易成碳化硅制品有限公司 | Stirring mechanism of stirring grinding machine |
| CN203648638U (en) * | 2013-12-09 | 2014-06-18 | 宜昌思瑞科技有限公司 | Circulating barrel device of stirring mill |
| CN206083085U (en) * | 2016-09-28 | 2017-04-12 | 安徽马钢张庄矿业有限责任公司 | Be suitable for incompact drum of particulate bonding material to break up machine |
| CN107413463A (en) * | 2017-07-26 | 2017-12-01 | 芜湖市三山龙城新材料有限公司 | A kind of grinder and its application method |
| CN207127201U (en) * | 2017-08-28 | 2018-03-23 | 柳州市柳晶科技股份有限公司 | A kind of antiquated sand lapping device |
| CN207667746U (en) * | 2017-12-11 | 2018-07-31 | 山东惟远新材料装备有限公司 | Dry stirring is classified medium mill |
| CN207872349U (en) * | 2017-12-19 | 2018-09-18 | 苏州聚康新材料科技有限公司 | A kind of powdery paints classification collecting device |
| CN208244863U (en) * | 2018-01-22 | 2018-12-18 | 苏州市金鹰机械设备有限公司 | A kind of ball mill |
| JP2020075235A (en) * | 2018-09-20 | 2020-05-21 | ネッツシュ−ファインマールテヒニック ゲーエムベーハー | Agitator ball mill and method for operating agitator ball mill |
| CN110193406A (en) * | 2019-04-07 | 2019-09-03 | 锦州旭日新材料科技有限公司 | A kind of vertical air separation disintegrator for zirconium fluidizing chlorination industry |
| CN209952968U (en) * | 2019-04-23 | 2020-01-17 | 南京金升华包装材料有限公司 | Vertical continuous printing ink grinder |
| CN210159693U (en) * | 2019-05-14 | 2020-03-20 | 山东义科节能科技股份有限公司 | Dry-type stirring and grinding roller and dry-type stirring and grinding system |
| CN211514741U (en) * | 2019-10-30 | 2020-09-18 | 安徽儒特实业有限公司 | Novel sand mill |
| CN112741354A (en) * | 2021-03-17 | 2021-05-04 | 成都华宏生物科技有限公司 | Integrated feed production device and method |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113953029A (en) * | 2021-10-18 | 2022-01-21 | 天津水泥工业设计研究院有限公司 | Dry stirring mill and operation method thereof |
| CN113976277A (en) * | 2021-10-18 | 2022-01-28 | 天津水泥工业设计研究院有限公司 | Cement external circulation vertical mill combined high-performance grinding process system |
| CN113976277B (en) * | 2021-10-18 | 2023-01-31 | 天津水泥工业设计研究院有限公司 | Cement external circulation vertical mill combined high-performance grinding process system |
| CN114160259A (en) * | 2021-10-20 | 2022-03-11 | 北海凯洋生物科技有限公司 | Be used for fish meal homogenization equipment |
| CN114158601A (en) * | 2021-12-13 | 2022-03-11 | 荣成泰祥食品股份有限公司 | Marine organism lipoprotein separator |
| CN114158601B (en) * | 2021-12-13 | 2022-10-18 | 荣成泰祥食品股份有限公司 | Marine organism lipoprotein separator |
| CN114643109A (en) * | 2022-03-18 | 2022-06-21 | 陇东学院 | Ultrasonic vertical ore mill with multi-stage screening function |
| CN115007281A (en) * | 2022-08-09 | 2022-09-06 | 合肥工业大学 | Vertical ball-milling device for metal powder processing |
| WO2024077902A1 (en) * | 2022-10-12 | 2024-04-18 | 深圳市尚水智能股份有限公司 | Medium grinder |
| CN116273375A (en) * | 2023-03-07 | 2023-06-23 | 张艳 | Preparation process of probiotic powder |
| CN116809216A (en) * | 2023-08-31 | 2023-09-29 | 河北光辉实业有限公司 | Calcium powder grinding device with regulatory function |
| CN116809216B (en) * | 2023-08-31 | 2023-11-17 | 河北光辉实业有限公司 | Calcium powder grinding device with regulatory function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113399058B (en) | 2022-07-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113399058B (en) | Efficient vertical dry stirring mill and application thereof | |
| CN113976277B (en) | Cement external circulation vertical mill combined high-performance grinding process system | |
| CN101767049B (en) | Vertical multi-stage coaxial impact crushing sorting unit | |
| CN105478056A (en) | Ceramic raw material dry method granulation production line and production technology | |
| CN101767093A (en) | Powder concentrator integrating functions of scattering, drying and grading into whole | |
| CN110385175A (en) | One kind can quantity-produced cement grog grinding implementation equipment | |
| CN110732382A (en) | machine-made sand vertical mill and production process system thereof | |
| CN215878794U (en) | Novel powder selecting device | |
| CN101762147B (en) | Clay mineral drier | |
| CN110743792A (en) | High dispersion vortex powder concentrator | |
| CN201609671U (en) | Vertical multistage coaxial impact crushing separator | |
| CN113953029B (en) | Dry stirring mill and operation method thereof | |
| CN113953027B (en) | Powder selecting and grinding integrated ball mill | |
| CN210935207U (en) | Cement clinker grinding implementation equipment capable of realizing continuous production | |
| CN211514732U (en) | Machine-made sand vertical mill and machine-made sand production process system | |
| CN113751144A (en) | Stirring abrasive material system | |
| CN110124804A (en) | ZGM type medium-speed pulverizer vane device | |
| CN213557749U (en) | Fine powder concentrator for producing sand with multiple sets of extension machines | |
| CN210159693U (en) | Dry-type stirring and grinding roller and dry-type stirring and grinding system | |
| CN211436406U (en) | Process system for producing fine sand by using machine-made sand vertical mill | |
| CN211636761U (en) | Cement clinker grinding implementation equipment and stirring device thereof | |
| CN211436519U (en) | Production process system for producing multi-product machine-made sand | |
| CN109999964A (en) | Dry mix abrasive roller and dry mix grinding system | |
| CN216025302U (en) | Abrasive stirring equipment | |
| CN218742212U (en) | Split type circulation selection powder machine convenient to overhaul |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |