CN110354949B - Quartz ore powder processing system - Google Patents

Quartz ore powder processing system Download PDF

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Publication number
CN110354949B
CN110354949B CN201910658043.1A CN201910658043A CN110354949B CN 110354949 B CN110354949 B CN 110354949B CN 201910658043 A CN201910658043 A CN 201910658043A CN 110354949 B CN110354949 B CN 110354949B
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China
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grinding
extrusion plate
plate
rod
tank body
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CN110354949A (en
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不公告发明人
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Guangning Qiaofeng Mining Co.,Ltd.
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Guangning Qiaofeng Mining Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C7/00Crushing or disintegrating by disc mills
    • B02C7/02Crushing or disintegrating by disc mills with coaxial discs
    • B02C7/08Crushing or disintegrating by disc mills with coaxial discs with vertical axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00Other disintegrating devices or methods
    • B02C19/0006Crushing by endless flexible members
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/18Adding fluid, other than for crushing or disintegrating by fluid energy
    • B02C23/24Passing gas through crushing or disintegrating zone
    • B02C23/30Passing gas through crushing or disintegrating zone the applied gas acting to effect material separation
    • B08B1/12
    • B08B1/32

Abstract

The invention belongs to the technical field of ore crushing, and particularly relates to a quartz ore powder processing system which comprises a first tank body, a first extrusion plate, a second extrusion plate and a cleaning mechanism, wherein the first extrusion plate is rotatably arranged on a top plate of the first tank body through a first rotating rod, and one end of the first rotating rod is fixedly connected with a rotating shaft of a first motor; the second extrusion plate is fixedly arranged on the upper surface of the bottom plate of the first tank body through a pneumatic rod; the surface of the first tank body is provided with a first feeding hole, and the first feeding hole is used for conveying raw materials between the first extrusion plate and the second extrusion plate; a first air supply pipe is arranged between the second extrusion plate and the bottom plate of the first tank body, a first opening penetrating through the first air supply pipe is formed in the surface of the second extrusion plate, and a first plug plate is fixedly installed in the first opening; the surface of the first plug plate is provided with a first micro-pore. The quartz grinding machine is mainly used for grinding quartz ores, and can fully grind the quartz ores; the grinding efficiency of the invention is improved.

Description

Quartz ore powder processing system
Technical Field
The invention belongs to the technical field of ore crushing, and particularly relates to a quartz ore powder processing system.
Background
The prior common ore dry grinding workshop is a vertical roller mill system which can grind and grade various high-efficiency high-quality ultrafine powder at one time and is widely applied to industries of various fillers such as papermaking, paint, coating, plastics, rubber, wires and cables, artificial leather and the like. However, in actual use, part of the screw and the rear section of the existing mill device are easily worn, and particularly, the screw pump for adding the grinding and dispersing agent is easily worn, which reduces the operation efficiency of the dry grinding workshop and increases the operation cost of the whole device, so that the improvement of the existing mill system is required.
The prior art also discloses a technical scheme for ore grinding, for example, a chinese patent with application number 201410307618.2 discloses an ore grinding device, which includes: the first screw conveyer is used for conveying the ore to be ground; the feeding machine is provided with a first feeding hole and a discharging hole, and the first feeding hole is in fluid communication with the discharging end of the first spiral conveyor; the second screw conveyor is provided with an input end and an output end, and the input end is in fluid communication with a discharge port of the feeding machine; the grinding dispersant conveying device comprises a pump and a conveying pipeline for conveying the grinding dispersant, the conveying pipeline is provided with a discharge port, the discharge port is in fluid communication with the input end of the second screw conveyor, and the conveying pipeline is provided with an adjusting valve for adjusting the flow of the grinding dispersant; and the mill is provided with a feeding port, and the feeding port is in fluid communication with the output end of the second screw conveyor. Although the technical scheme can grind the ore, the technical scheme can not fully grind the quartz ore, so that the granularity of ground quartz particles is large, the sintering effect of the quartz ore is influenced, and the invention is limited.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides a quartz ore powder processing system which is mainly used for grinding quartz ores and can fully grind the quartz ores; according to the quartz ore crushing and grinding device, the first extrusion plate is matched with the second extrusion plate to grind quartz ore, and the first pushing plate is matched with the sweeping mechanism to crush and grind large particles in the quartz ore; the grinding efficiency of the invention is improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention provides a quartz ore powder processing system which comprises a first tank, a first extrusion plate, a second extrusion plate and a cleaning mechanism, wherein the first extrusion plate is rotatably arranged on a top plate of the first tank through a first rotating rod, and one end of the first rotating rod is fixedly connected with a rotating shaft of a first motor; the second extrusion plate is fixedly arranged on the upper surface of the bottom plate of the first tank body through a pneumatic rod; the surface of the first tank body is provided with a first feeding hole, and the first feeding hole is used for conveying raw materials between the first extrusion plate and the second extrusion plate; the first motor drives the first extrusion plate to rotate through the first rotating rod, and the air pressure rod is used for driving the second extrusion plate to move in the vertical direction; when quartz ore raw materials are conveyed to a position between the first extrusion plate and the second extrusion plate through the first feeding hole, the first extrusion plate is matched with the second extrusion plate to grind quartz ores;
a first air supply pipe is arranged between the second extrusion plate and the bottom plate of the first tank body, a first opening penetrating through the first air supply pipe is formed in the surface of the second extrusion plate, and a first plug plate is fixedly installed in the first opening; the surface of the first plug plate is provided with a first micro-pore;
a second opening is formed in the first extrusion plate, and first grinding mechanisms are arranged on the second openings; the first grinding mechanism is used for grinding the quartz ore after the first extrusion plate and the second extrusion plate are extruded in a matched mode, and comprises first elastic cloth and a semicircular grinding block; the end parts of the semicircular grinding blocks are uniformly and fixedly connected to the first elastic cloth; the first elastic cloth is encircled into a circle and is bonded on the side wall of the second opening; the first elastic cloth is bonded on the side wall of the second opening, so that the first elastic cloth is convenient to replace, and the extruded quartz ore is ground for one time through the mutual matching of the first elastic cloth and the semicircular grinding blocks, so that the diameter of quartz ore particles is reduced; a cleaning mechanism is arranged between the first extrusion plate and a top plate of the first tank body, a first suction pipe is arranged on the top plate of the first tank body, and the first suction pipe is used for sucking fine particles in the first tank body; first gas supply pipe blows in gas into quartz ore through the first micropore in the first cock board to make the dust granule in the quartz ore blown, first suction pipe carries out the suction through the granule in the second opening in with the quartz ore, thereby in time separates the dust granule in the quartz ore.
Preferably, the sweeping mechanism comprises a first pushing plate, a first fixed disc and a sweeping mechanism; the first pushing plates and the sweeping mechanisms are four in number, the first pushing plates and the sweeping mechanisms are arranged on the outer surface of the first fixing disc in a circumferentially arranged mode in a staggered mode, a first through hole is formed in the middle of the first fixing disc, the first fixing disc is sleeved on the outer layer of the first rotating rod through the first through hole, and the first fixing disc can rotate relative to the first rotating rod; the cleaning mechanism is used for cleaning the particle dust between the top plate of the first tank body and the first extrusion plate, so that the particle dust can fall back to the position between the first extrusion plate and the second extrusion plate through the second opening; meanwhile, the first fixed disc in the cleaning mechanism can grind large-particle dust, so that the grinding efficiency of the quartz ore grinding machine is improved.
Preferably, the sweeping mechanism comprises a first supporting rod, a first telescopic part, a second supporting rod, a first fixing rod and a first brush head, the first supporting rod and the second supporting rod are arranged in parallel, and the first telescopic part is fixedly connected between the first supporting rod and the second supporting rod; the first brush head is connected with the second supporting rod through a first fixing rod, and the first fixing rod and the second supporting rod are vertically arranged; first extensible member is one of pneumatic rod or hydraulic stem, and pneumatic rod and hydraulic stem itself have certain shock-absorbing function, can effectively prevent the phenomenon of sweeping the motive and construct the damage that the too big effort that leads to between first brush head and the large granule.
Preferably, the top surface of the second extrusion plate is a convex first spherical arc surface; the bottom surface of the first extrusion plate is provided with a sunken first spherical arc groove; first spherical cambered surface is used for making first stripper plate and second stripper plate work of mutually supporting through cooperating with first spherical arc groove, and bellied first spherical cambered surface and first spherical arc groove mutually support and can increase the grinding area of quartz ore to the efficiency that quartz ore ground has been improved.
Preferably, the bottom of the first pushing plate is provided with three first mounting grooves, and a second grinding mechanism is arranged in each first mounting groove; the second grinding mechanism comprises a plurality of first grinding cones, a first guide rod and a spring, the first grinding cones are half cones in shape, the first grinding cones are fixedly installed in the first installation groove through the first guide rod, the spring is arranged between the adjacent first grinding cones in the plurality of first grinding cones, and the spring is matched with the first grinding cones to enable the distance between the adjacent first grinding cones to be adjustable, so that large-particle quartz ores are prevented from being blocked between the first grinding cones, and the service life of the second grinding mechanism is prolonged; the first grinding cones of two adjacent second grinding mechanisms in the three second grinding mechanisms are distributed in a staggered mode and used for improving the grinding efficiency of the first grinding cones on the quartz ore.
The invention has the beneficial effects that:
1. the invention relates to a quartz ore powder processing system which comprises a first tank, a first extrusion plate, a second extrusion plate and a cleaning mechanism, wherein the first tank is provided with a first groove; first stripper plate and second stripper plate mutually support and are used for fully grinding the quartzy in the first jar of body, clean the mechanism and be used for cleaning, simultaneously, grind the quartzy granule between first stripper plate and the first jar of body roof to quartzy grinding efficiency has been improved.
2. According to the quartz ore powder processing system, the cleaning mechanism comprises a first pushing plate, a first fixing disc and a sweeping mechanism; the sweeping mechanism is used for sweeping the quartz ore on the top surface of the first extrusion plate, and the first pushing plate is used for grinding and crushing the quartz ore on the top surface of the first extrusion plate; the sweeping mechanism is used for preventing the quartz ore from being accumulated on the top surface of the first pressing plate by cooperating with the first pushing plate.
3. According to the quartz ore powder processing system, the sweeping mechanism comprises the first supporting rod, the telescopic rod, the second supporting rod, the first fixing rod and the first brush head, the first supporting rod can enable the second supporting rod to vibrate in the vertical direction through being matched with the first telescopic piece, the second supporting rod is matched with the first fixing rod to drive the first brush head to rotate, and therefore the first brush head can push quartz ore on the top surface of the first extrusion plate into the second opening.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is a cross-sectional view of a first pusher plate of the present invention;
FIG. 5 is a cross-sectional view B-B of FIG. 4;
in the figure: the cleaning device comprises a first tank body 1, a first extrusion plate 2, a second extrusion plate 3, a cleaning mechanism 4, a first grinding mechanism 5, a first elastic cloth 51, a semicircular grinding block 52, a first rotating rod 21, a first motor 22, a first feed inlet 11, a first air supply pipe 13, a first opening 14, a first plug plate 15, a first micro-air hole 16, a second opening 23, a first suction pipe 24, a first push plate 41, a first fixed disc 42, a sweeping mechanism 43, a first supporting rod 431, a first telescopic piece 432, a second supporting rod 433, a first fixed rod 434, a first brush head 435, a first spherical arc surface 31, a first spherical arc groove 32, a first mounting groove 44, a second grinding mechanism 411, a first grinding cone 412 and a first guide rod 413.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 5, the system for processing quartz ore powder comprises a first tank 1, a first extrusion plate 2, a second extrusion plate 3 and a cleaning mechanism 4, wherein the first extrusion plate 2 is rotatably mounted on a top plate of the first tank 1 through a first rotating rod 21, and one end of the first rotating rod 21 is fixedly connected with a rotating shaft of a first motor 22; the second extrusion plate 3 is fixedly arranged on the upper surface of the bottom plate of the first tank body 1 through a pneumatic rod; the surface of the first tank body 1 is provided with a first feed inlet 11, and the first feed inlet 11 is used for conveying raw materials between the first extrusion plate 2 and the second extrusion plate 3; the first motor 22 drives the first extrusion plate 2 to rotate through the first rotating rod 21, and the air pressure rod is used for driving the second extrusion plate 3 to move in the vertical direction; when quartz ore raw materials are conveyed between the first extrusion plate 2 and the second extrusion plate 3 through the first feeding hole 11, the first extrusion plate 2 is matched with the second extrusion plate 3 to grind quartz ores;
a first air supply pipe 13 is arranged between the second extrusion plate 3 and the bottom plate of the first tank body 1, a first opening 14 penetrating through the first air supply pipe 13 is arranged on the surface of the second extrusion plate 3, and a first plug plate 15 is fixedly arranged in the first opening 14; the surface of the first plug plate 15 is provided with a first micro-air hole 16;
a second opening 23 is formed in the first extrusion plate 2; the second openings 23 are provided with first grinding mechanisms 5; the first grinding mechanism 5 is used for grinding the quartz ore after the first extrusion plate 2 and the second extrusion plate 3 are extruded in a matched manner, and the first grinding mechanism 5 comprises first elastic cloth 51 and a semicircular grinding block 52; the end parts of the semicircular grinding blocks 52 are uniformly and fixedly connected to the first elastic cloth 51; the first elastic cloth 51 is encircled into a circle, and the first elastic cloth 51 is bonded on the side wall of the second opening 23; the first elastic cloth 51 is bonded on the side wall of the second opening 23, so that the first elastic cloth 23 is convenient to replace, and the extruded quartz ore is ground for one time through the mutual matching between the first elastic cloth 51 and the semicircular grinding block 52, so that the diameter of quartz ore particles is reduced; a cleaning mechanism 4 is arranged between the first extrusion plate 2 and the top plate of the first tank 1, a first suction pipe 24 is arranged on the top plate of the first tank 1, and the first suction pipe 24 is used for sucking fine particles in the first tank 1; the first gas supply tube 13 blows gas into the quartz ore through the first micro-pores 16 in the first plug plate 15 so that dust particles in the quartz ore are blown up, and the first suction tube 24 sucks particles in the quartz ore through the second opening 23 so that the dust particles in the quartz ore are separated in time.
As an embodiment of the present invention, the sweeping mechanism 4 includes a first pushing plate 41, a first fixing plate 42, and a sweeping mechanism 43; the number of the first pushing plates 41 and the sweeping mechanisms 43 is four, the first pushing plates 41 and the sweeping mechanisms 43 are installed on the outer surface of the first fixing disc 42 in a staggered manner in a circumferential arrangement manner, a first through hole is formed in the middle of the first fixing disc 42, the first fixing disc 42 is sleeved on the outer layer of the first rotating rod 21 through the first through hole, and the first fixing disc 42 can rotate relative to the first rotating rod 21; the cleaning mechanism 4 is used for cleaning the particle dust between the top plate of the first tank body 1 and the first extrusion plate 2, so that the particle dust can fall back to the space between the first extrusion plate 2 and the second extrusion plate 3 through the second opening 23; meanwhile, the first fixed disc 42 in the cleaning mechanism 4 can grind large-particle dust, so that the grinding efficiency of the quartz ore is improved.
As an embodiment of the present invention, the sweeping mechanism 43 includes a first supporting rod 431, a first telescopic member 432, a second supporting rod 433, a first fixing rod 434 and a first bristle 435, the first supporting rod 431 and the second supporting rod 433 are arranged in parallel, and the first telescopic member 432 is fixedly connected between the first supporting rod 431 and the second supporting rod 433; the first bristle 435 is connected with a second support rod 433 through a first fixing rod 434, and the first fixing rod 434 and the second support rod 433 are vertically arranged; the first telescopic member 432 is one of a pneumatic rod or a hydraulic rod, and the pneumatic rod and the hydraulic rod have certain damping functions, so that the phenomenon that the sweeping mechanism 43 is damaged due to overlarge acting force between the first brush head 435 and large particles can be effectively prevented.
As an embodiment of the present invention, the top surface of the second compression plate 3 is a convex first spherical arc surface 31; the bottom surface of the first extrusion plate 2 is provided with a concave first spherical arc groove 32; first spherical cambered surface 31 is used for making first stripper plate 2 and second stripper plate 3 work of mutually supporting through cooperating with first spherical arc groove 32, and bellied first spherical cambered surface 31 and first spherical arc groove 32 mutually support the grinding area that can increase quartz ore to the efficiency that quartz ore ground has been improved.
As an embodiment of the present invention, the bottom of the first pushing plate 41 is provided with three first mounting grooves 44, and each first mounting groove 44 is provided with a second grinding mechanism 411; the second grinding mechanism 411 comprises a plurality of first grinding cones 412, a first guide rod 413 and a spring, the first grinding cones 412 are half cones in shape, the first grinding cones 412 are fixedly installed in the first installation groove 44 through the first guide rod 413, the spring is arranged between adjacent first grinding cones 412 in the plurality of first grinding cones 412, and the spring is matched with the first grinding cones 412 to enable the distance between the adjacent first grinding cones 412 to be adjustable, so that large-particle quartz ore is prevented from being blocked between the first grinding cones 412, and the service life of the second grinding mechanism 411 is prolonged; the first grinding cones 412 of two adjacent second grinding mechanisms 411 of the three second grinding mechanisms 411 are distributed in a staggered manner, so as to improve the grinding efficiency of the first grinding cones 412 on quartz ore.
During operation, preliminarily crushed quartz ore blocks flow into a space between the first extrusion plate 2 and the second extrusion plate 3 through the first feeding hole 11, the first feeding hole 11 is closed, the air pressure rod drives the second extrusion plate 3 to move upwards, meanwhile, the first motor 22 drives the first extrusion plate 2 to rotate through the first rotating rod 21 to extrude and grind quartz ore, then the air pressure rod drives the second extrusion plate 3 to move downwards, and meanwhile, the blower blows air into the air dust of the ore particles through the first air supply pipe 13 and the first micro-air holes 16 to blow fine particles in the ore particles; then the suction pump sucks fine particles in the quartz ore through the first suction pipe 24 and the second opening 23 for timely separating dust particles in the ore; when the dust particles pass through the second opening 23, the dust particles are ground for the first time through the mutual matching of the first elastic cloth 51 and the semicircular grinding block 52, and the large-particle quartz ore falling between the first extrusion plate 2 and the top plate of the first tank body 1 and the large-particle quartz ore are swept between the first extrusion plate 2 and the second extrusion plate 3 by the sweeping mechanism 43; meanwhile, the rotating plate in the sweeping mechanism 43 is matched with the first extrusion plate 2 to grind the large-particle quartz ore.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (1)

1. The utility model provides a quartz ore powder processing system which characterized in that: the cleaning device comprises a first tank body (1), a first extrusion plate (2), a second extrusion plate (3) and a cleaning mechanism (4), wherein the first extrusion plate (2) is rotatably arranged on a top plate of the first tank body (1) through a first rotating rod (21), and one end of the first rotating rod (21) is fixedly connected with a rotating shaft of a first motor (22); the second extrusion plate (3) is fixedly arranged on the upper surface of the bottom plate of the first tank body (1) through a pneumatic rod; the surface of the first tank body (1) is provided with a first feeding hole (11), and the first feeding hole (11) is used for conveying raw materials between the first extrusion plate (2) and the second extrusion plate (3);
a first air supply pipe (13) is arranged between the second extrusion plate (3) and the bottom plate of the first tank body (1), a first opening (14) penetrating through the first air supply pipe (13) is formed in the surface of the second extrusion plate (3), and a first plug plate (15) is fixedly installed in the first opening (14); the surface of the first plug plate (15) is provided with a first micro-air hole (16);
a second opening (23) is formed in the first extrusion plate (2), and first grinding mechanisms (5) are arranged on the second openings (23); the first grinding mechanism (5) is used for grinding the quartz ore after the first extrusion plate (2) and the second extrusion plate (3) are extruded in a matched mode, and the first grinding mechanism (5) comprises first elastic cloth (51) and a semicircular grinding block (52); the end parts of the semicircular grinding blocks (52) are uniformly and fixedly connected to the first elastic cloth (51); the first elastic cloth (51) is encircled into a circle, and the first elastic cloth (51) is bonded on the side wall of the second opening (23); a cleaning mechanism (4) is arranged between the first extrusion plate (2) and the top plate of the first tank body (1), a first suction pipe (24) is arranged on the top plate of the first tank body (1), and the first suction pipe (24) is used for sucking fine particles in the first tank body (1); the first elastic cloth (51) is bonded on the side wall of the second opening (23), so that the first elastic cloth (51) is convenient to replace, and the extruded quartz ore is ground for one time through the mutual matching between the first elastic cloth (51) and the semicircular grinding block (52), so that the diameter of the quartz ore particles is reduced;
the cleaning mechanism (4) comprises a first pushing plate (41), a first fixed disc (42) and a sweeping mechanism (43); the number of the first pushing plates (41) and the number of the sweeping mechanisms (43) are four, the first pushing plates (41) and the sweeping mechanisms (43) are installed on the outer surface of the first fixed disk (42) in a staggered mode in a circumferential arrangement mode, a first through hole is formed in the middle of the first fixed disk (42), the first fixed disk (42) is sleeved on the outer layer of the first rotating rod (21) through the first through hole, and the first fixed disk (42) can rotate relative to the first rotating rod (21);
the sweeping mechanism (43) comprises a first supporting rod (431), a first telescopic piece (432), a second supporting rod (433), a first fixing rod (434) and a first brush head (435), wherein the first supporting rod (431) and the second supporting rod (433) are arranged in parallel, and the first telescopic piece (432) is fixedly connected between the first supporting rod (431) and the second supporting rod (433); the first brush head (435) is connected with the second support rod (433) through a first fixing rod (434), and the first fixing rod (434) and the second support rod (433) are vertically arranged; the first telescopic part (432) is one of a pneumatic rod or a hydraulic rod;
the top surface of the second extrusion plate (3) is a convex first spherical arc surface (31); the bottom surface of the first extrusion plate (2) is provided with a sunken first spherical arc groove (32); the first spherical arc surface (31) is matched with the first spherical arc groove (32) to enable the first extrusion plate (2) and the second extrusion plate (3) to work in a matched mode;
the bottom of the first pushing plate (41) is provided with three first mounting grooves (44), and a second grinding mechanism (411) is arranged in each first mounting groove (44); the second grinding mechanism (411) comprises a plurality of first grinding cones (412), a first guide rod (413) and a spring, the first grinding cones (412) are half cones in shape, the first grinding cones (412) are fixedly installed in the first installation groove (44) through the first guide rod (413), and the spring is arranged between the adjacent first grinding cones (412) in the plurality of first grinding cones (412); the first grinding cones (412) of two adjacent second grinding mechanisms (411) in the three second grinding mechanisms (411) are distributed in a staggered manner.
CN201910658043.1A 2019-07-20 2019-07-20 Quartz ore powder processing system Active CN110354949B (en)

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CN110354949B true CN110354949B (en) 2021-08-24

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