CN107029855B - Mining crushing and grinding integrated device - Google Patents
Mining crushing and grinding integrated device Download PDFInfo
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- CN107029855B CN107029855B CN201710356380.6A CN201710356380A CN107029855B CN 107029855 B CN107029855 B CN 107029855B CN 201710356380 A CN201710356380 A CN 201710356380A CN 107029855 B CN107029855 B CN 107029855B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary 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
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary 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
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/40—Adding fluid, other than for crushing or disintegrating by fluid energy with more than one means for adding fluid to the material being crushed or disintegrated
Abstract
The invention discloses a crushing and grinding integrated device for a mine, belongs to the technical field of crushing and grinding of the mine, and is mainly used for grinding ores mined out by the mine so as to facilitate subsequent ore dressing. The device mainly comprises a gravity coarse crushing device, an extrusion milling middle crushing device, a multi-stage ball milling fine crushing device, a waste water recycling device, a noise reduction device, an auxiliary device and the like. The device can synchronously realize all the processes of coarse crushing, intermediate crushing and fine crushing of the ore, saves the intermediate link of belt transportation, reduces the loss of the ore in the transportation process, reduces the cost of manpower and material resources for operation, and realizes the maximization of economic benefit; and moreover, noise and dust generated during crushing and ore grinding can be treated, and the risk of workers changing occupational diseases is reduced.
Description
Technical Field
The invention relates to a mining crushing and grinding integrated device, and belongs to the technical field of mine crushing and grinding.
Background
Crushing and grinding are common operational procedures in the industrial production of concentrating mills. In many industrial sectors, such as cement, iron making, road building, etc., crushing and grinding processes take a very important position. It is generally necessary to provide crushers and mills in a mill, which is closely related to the operational nature of the mill. Any ore dressing method is carried out according to the different properties of useful minerals and gangue in ores, and the premise is to fully dissociate the useful minerals and the gangue, so that the importance of crushing and grinding operations is revealed. In mineral processing production, crushing, screening and grinding classification provide mineral aggregates for the subsequent sorting operation. The beneficiation method is limited by the granularity of materials, the too coarse ore particles cannot be separated because useful minerals and gangue are not dissociated, and the too fine ore particles are difficult to control by the conventional beneficiation method.
Crushing and grinding have the following effects on the production technology index: the crushing and grinding process may be accompanied by the production of over-crushed or insufficiently dissociated material. Because the dissociation is insufficient, the grade and the recovery rate of the selected concentrate are low, and the fine particles which are difficult to select are more, both of which cause the reduction of the production technical index. Crushing and grinding are therefore the basic task of preparing a fully dissociated but over-crushed light load for sorting.
From the investment cost, crushing and ore grinding account for about 60 percent of the total investment of the plant selection; from the production cost, the production cost of the crushing and ore grinding operation accounts for more than 40 percent of the total cost of the plant. Therefore, the economic indexes of the concentrating mill are directly influenced by the design and the operation of the crushing and grinding sections. Therefore, the production flow of crushing and ore grinding needs to be designed reasonably, and proper crushing equipment and ore grinding equipment need to be selected. And the area of the land used by the selection plant is also quite large by crushing and grinding, and minerals need to be transported by belts among the crushing and grinding, so that the loss of the minerals and the operation cost are greatly increased.
According to the detection report, the main hazard factors of occupational diseases in various industries are as follows: dust and noise in cement manufacturing industry; the stone processing industry is silicon dust, the highest total dust exceeds the standard by 110 times, and the highest dust exhaust exceeds the standard by 49.4 times; the highest standard exceeding of the total dust of the silicon dust of a loading station in the quartz sand processing industry is 9.1 times, and the highest standard exceeding of the dust calling is 3.7 times; most wood furniture manufacturing enterprises do not carry out paint spraying operation, and dust and noise both exceed standards; lead smoke, lead dust and noise exist in the lead production industry; the highest superscript of the total dust and the highest superscript of the calling dust of the packing and crushing posts of the mine (without the coal mine) are both 2.6 times.
It is understood that the crushing and grinding of the ore are performed by three steps of coarse crushing, intermediate crushing and fine crushing, and each step needs different machines, and the material is conveyed by the belt. The crushing and grinding in this way undoubtedly increases the cost and increases the loss of the minerals during transportation. The cost of manpower and material resources for management also rises; and is not treated for noise and dust generated from crushing and grinding.
Disclosure of Invention
The invention aims to provide a mining crushing and grinding integrated device, which can synchronously realize all the processes of coarse crushing, intermediate crushing and fine crushing of ores, saves the intermediate link of belt transportation, reduces the loss of the ores in the transportation process, reduces the cost of manpower and material resources for operation and maximizes the economic benefit.
The invention relates to a crushing and grinding integrated device for a mine, which comprises a gravity coarse crushing device, an extrusion grinding middle crushing device, a multistage ball-milling fine crushing device and a wastewater recycling device, wherein the gravity coarse crushing device, the extrusion grinding middle crushing device and the multistage ball-milling fine crushing device are sequentially arranged in an inner shell 53 from top to bottom;
the gravity coarse crushing device comprises a gas communicating pipe 3, an air pressure lifter 4, a lifting electromagnet 7, an anti-collision rubber layer 8, a limiting rubber layer 9, a gravity crushing disc 10, an inverted cone crusher 11, an air compressor 12, a porous bearing disc 13, a pneumatic spring 14, a primary crushing device bearing plate 19, a primary crushing movable electric machine set 20, an ore input spraying device 21, a passive switch 22, a baffle plate 23, a conveying belt 24, a strip-shaped heater 25 and a primary crushing ore collector 29; the lifting electromagnet 7 is fixed at the top end of the inner shell 53, and the air compressor 12 is positioned at the side edge of the inner shell 53; the air compressor 12 is connected with the air pressure lifter 4 through the gas communicating pipe 3, the air pressure lifter 4 penetrates through the lifting electromagnet 7 and is connected with the gravity crushing disc 10 through the anti-collision rubber layer 8, the anti-collision rubber layer 8 is fixed on the gravity crushing disc 10, the limiting rubber layer 9 is arranged around the gravity crushing disc 10, and the limiting rubber layer 9 is fixed on the side wall of the inner shell 53; an inverted cone crusher 11 is arranged below the gravity crushing disc 10, a porous bearing disc 13 is arranged under the gravity crushing disc 10, the porous bearing disc 13 is arranged on a bearing plate 19 of a primary crushing device, the porous bearing disc 13 and the bearing plate 19 of the primary crushing device are supported by a plurality of pneumatic springs 14, the lower ends of the pneumatic springs 14 are fixed on the bearing plate 19 of the primary crushing device, the bearing plate 19 of the primary crushing device is fixed on the side wall of an inner shell 53, and the porous bearing disc 13 is connected with a primary crushing movable motor unit 20; an ore inlet is arranged on the side surface of the gravity coarse crushing device, a baffle plate 23 is arranged at the ore inlet, a conveying belt 24 and a strip-shaped heater 25 are arranged between the outer shell 1 and the inner shell 53 and are opposite to the ore inlet, the conveying belt 24 is arranged on the strip-shaped heater 25, and the ore input spraying device 21 is positioned right above the conveying belt 24; a primary crushed ore collector 29 is arranged below the bearing plate 19 of the primary crushing device, and the primary crushed ore collector 29 is fixed on the inner shell 53; the lifting electromagnet 7 is connected with an alternating current power supply; the passive switch 22 is fixed on the inner shell 53, penetrates through the limiting rubber layer 9, and is contacted with the passive switch 22 when the gravity crushing disc 10 descends; the passive switch 22 is simultaneously connected with the motor of the conveyer belt 24 and the primary crushing movable motor unit 20;
the extrusion grinding middle crushing device comprises a middle crushing upper disc 30, a middle crushing upper disc grinding ball 31, a middle crushing lower disc 32, a middle crushing movable motor group 33, a middle crushing bearing 34, a middle crushing lower disc grinding ball 35, a primary crushing ore inlet 36, a fine crushing ore collector 37 and a side grinding ball 58, wherein the middle crushing upper disc grinding ball 31 is arranged on the lower surface of the middle crushing upper disc 30, the middle crushing upper disc 30 is provided with a primary crushing ore inlet 36 and penetrates through the upper surface and the lower surface of the middle crushing upper disc 30, and the upper surface of the primary crushing ore inlet 36 is communicated with a primary crushing ore collector 29; a middle crushing lower disc 32 is arranged right below the middle crushing upper disc 30, and the upper surface of the middle crushing lower disc 32 is provided with a middle crushing lower disc grinding ball 35; the middle-crushing lower disc 32 is connected with a middle-crushing movable motor group 33 through a middle-crushing bearing 34, the middle-crushing movable motor group 33 is positioned below the middle-crushing lower disc 32 and is fixed on a bearing plate, and the bearing plate is fixed on an inner shell 53; the side wall of the inner shell 53 is fixed with a side grinding ball 58 which is positioned between the upper middle crushing disk 30 and the lower middle crushing disk 32; a fine ore collector 37 is arranged below the middle-crushing lower disc 32;
the ball-milling device comprises a multi-stage ball-milling fine crushing device ball-milling bearing 38, a ball-milling motor 39, an ore screening device 44, a first-stage ball-milling device 45, a middle-stage ball-milling device 46, a tail-end ball-milling device 47, a water outlet 57, a multi-stage ball-milling flange 60, a multi-stage aperture filter screen 62 and a water collector 64, wherein the first-stage ball-milling device 45 is communicated with a fine crushing ore collector 37, the first-stage ball-milling device 45, the middle-stage ball-milling device 46 and the tail-end ball-milling device 47 are sequentially communicated, the ball-milling bearing 38 is arranged on one side, opposite to the first-stage ball-milling device 45 and the tail-end ball-milling device 47, the ball-milling bearing 38 is fixed on a ball-milling fixing device 43, the ball-milling motor 39 is fixed on a motor angle adjusting plate 40, the ball-milling motor 39 is connected with a speed changer 42, and the speed changer 42 is connected with the ball-milling bearing 38 through a motor gear 41; the ball milling motor 39 drives the first ball milling device 45, the middle ball milling device 46 and the tail ball milling device 47 to rotate; an ore screening device 44 is arranged at the joint of the primary ball milling device 45, the middle ball milling device 46 and the tail end ball milling device 47, the ore screening device 44 comprises a multi-stage ball milling flange plate 60 and a multi-stage aperture filter screen 62, the multi-stage aperture filter screen 62 is fixed on the multi-stage ball milling flange plate 60, and the multi-stage ball milling flange plate 60 is fixed on the shell of the ball milling device; a circle of water filtering holes are formed in the outer shells of the primary ball milling device 45, the middle ball milling device 46 and the tail end ball milling device 47, and the aperture of the water filtering holes in the tail end ball milling device 47 is larger than that of the water filtering holes in the primary ball milling device 45 and the middle ball milling device 46; an annular water collector 64 is arranged at a position corresponding to the water filtering holes, the water collector 64 is fixed at the bottom of the outer shell 1 through a water collector bracket 59, a water outlet 57 is arranged below the water collector 64, the water outlets 57 corresponding to the initial stage ball milling device 45 and the middle stage ball milling device 46 are positioned right above the wastewater collecting tank 52, and the water outlet 57 of the tail end ball milling device 47 is positioned right above the finished product output belt 56 as an ore pulp outlet;
the waste water recycling device comprises a water storage tank 49, a recycling water pipe 50, a water suction pump 51, a waste water collecting tank 52 and a water outlet 57, wherein the water storage tank 49 is positioned above the ore input spraying device 21 and is communicated with the waste water collecting tank 52 through the recycling water pipe 50 and the water suction pump 51, the waste water collecting tank 52 is positioned below the multi-stage ball milling and fine crushing device, and the water outlet 57 of each stage is positioned right above the waste water collecting tank 52; the water storage tank 49 is communicated with the external water pipe 48 and the ore input spraying device 21.
Preferably, the air pressure lifter 4 comprises a shell, air pressure lifting bearings 5 and air pressure lifter baffles 6, wherein the shell is internally provided with a plurality of mutually nested air pressure lifting bearings 5 from inside to outside in sequence, the upper end of each stage of air pressure lifting bearing 5 is provided with a hook angle, the lower end of each adjacent air pressure lifting bearing is provided with a clamping groove corresponding to the hook angle, and the lower end of the air pressure lifter shell is provided with the air pressure lifter baffles 6 for fixing the outermost air pressure lifting bearing 5.
Preferably, the pneumatic spring 14 of the present invention includes a top bearing plate 15, an inner airtight clamping plate 16, and an outer limiting plate 17, the top bearing plate 15 is connected to the inner airtight clamping plate 16 through a bearing, the outer limiting plate 17 is located between the top bearing plate 15 and the inner airtight clamping plate 16 and fixed to a sidewall of the pneumatic spring 14, the lower surface of the inner airtight clamping plate 16 is connected to a spring, and the spring is fixed to the bottom of the pneumatic spring 14.
Preferably, the passive switch 22 of the present invention includes a conical iron rod 26, an external interface 27, an energizing iron block 28, and a self-locking switch 18, wherein the top of the conical iron rod 26 is conical, the top passes through the limiting rubber layer 9, the other end is connected with one end of the self-locking switch 18, the other end of the self-locking switch 18 is connected with a spring, the energizing iron block 28 is fixed on the spring, and the energizing iron block 28 is connected or disconnected with the external interface 27 by controlling the extension and contraction of the spring.
Preferably, the porous bearing disc 13 is high in outer periphery and low in inner periphery, the gradient is 5-10%, the height of the bottom pneumatic spring 14 is gradually reduced from outside to inside, and the preliminary crushing movable motor unit 20 is connected with the porous bearing disc 13 through a rotating shaft.
Preferably, the device of the present invention further comprises a sound-damping sponge layer 2 between the outer housing 1 and the inner housing 53.
Preferably, the apparatus of the present invention further comprises an inspection manhole 55 and a man ladder 54, the man ladder 54 being located between the outer hull 1 and the inner hull 53.
Preferably, a water filtering geotextile layer 61 is arranged between the multi-stage aperture filter screen 62 and the multi-stage ball-milling flange 60, the multi-stage ball-milling flange 60 is fixed on the ball-milling device through a fixing screw 63, and the particle size which can pass through the multi-stage aperture filter screen 62 among the initial stage ball-milling device 45, the middle stage ball-milling device 46 and the tail end ball-milling device 47 is gradually reduced.
Preferably, a circle of water filtering holes are formed in the outer shell of the tail end ball milling device 47, the aperture of the water filtering holes in the tail end ball milling device 47 is 0.15-0.17mm, and the aperture of the water filtering holes in the initial segment ball milling device 45 and the middle segment ball milling device 46 is 0.1-0.13mm.
The device is mainly used for grinding ores mined from mines, is convenient for subsequent ore dressing treatment, is used for treating high-value ores such as copper, iron and the like, and can also be used for treating low-value ores such as marble, quartz and the like.
The invention has the advantages of
(1) The device can synchronously realize all the processes of coarse crushing, intermediate crushing and fine crushing of the ore, saves the intermediate link of belt transportation, reduces the loss of the ore in the transportation process, reduces the cost of manpower and material resources for operation, and maximizes the economic benefit; and moreover, noise and dust generated during crushing and ore grinding can be treated, and the risk of workers changing occupational diseases is reduced.
(2) The device can grind various ore bodies with different particle sizes; the electromagnetic and pneumatic attraction is used, so that the mechanical loss is weakened, and the service life is prolonged; the aging is high and the cost is low; the device of the invention can be disassembled in all functional parts, is convenient to transport and store and is simple and convenient to install.
Drawings
FIG. 1 is a schematic structural view;
FIG. 2 isbase:Sub>A sectional view taken along line A-A;
FIG. 3 is a schematic diagram of "air pressure lifter-4";
FIG. 4 is a schematic diagram of "Passive switch-22";
FIG. 5 is a schematic view of "pneumatic spring-14";
FIG. 6 is a schematic view of the structure of "porous load-bearing disk-13";
FIG. 7 is a top view of the bearing plate-19 of the preliminary crushing apparatus;
FIG. 8 is a schematic view of the crushing apparatus in the extrusion mill;
FIG. 9 is a schematic view of the connection structure of the stages of the multistage ball milling and fine crushing device.
In the figure: 1-an outer shell; 2-a silencing sponge layer; 3-gas communicating pipe; 4-an air pressure lifter; 5-air pressure lifting bearing; 6-air pressure lifter baffle; 7-lifting the electromagnet; 8-an anti-collision rubber layer; 9-a limiting rubber layer; 10-gravity crushing disc; 11-an inverted cone crusher; 12-an air compressor; 13-porous load-bearing disks; 14-a pneumatic spring; 15-top bearing plate; 16-internal airtight blocking plate; 17-an outer limiting plate; 18-self-locking switch; 19-primary crushing the bearing plate of the device; 20-primary crushing movable motor group; 21-ore input spraying device; 22-a passive switch; 23-a baffle plate; 24-a conveyor belt; 25-strip heaters; 26-a nose cone iron rod; 27-an external interface; 28-electrifying the iron block; 29-primary crushed ore collector; 30-middle crushing and loading; 31-middle crushing upper disc grinding balls; 32-middle crushing and lower disc; 33-middle crushing movable motor group; 34-middle broken bearings; 35-grinding the lower disc of the middle-sized crusher; 36-primary crushed ore inlet; 37-a fine ore collector; 38-ball milling bearings; 39-ball mill motor; 40-motor angle adjustment plate; 41-motor gear; 42-a transmission; 43-ball milling fixture; 44-an ore screener; 45-a primary ball milling device; 46-a middle ball milling device; 47-end ball milling unit; 48-external water pipe; 49-water storage tank; 50-a recovery water pipe; 51-water pump; 52-a wastewater collection tank; 53-inner housing; 54-a human ladder; 55-inspection manhole; 56-finished product output belt; 57-water outlet; 58-side grinding balls; 59-a water collector support; 60-a multistage ball milling flange plate; 61-a water-filtering geotextile layer; 62-multi-stage aperture filter screen; 63-fixing screws; and 64-a water collector.
Detailed Description
The invention will be described in more detail with reference to the following figures and examples, without limiting the scope of the invention.
Example 1
The mining crushing and grinding integrated device (as shown in fig. 1 to 9) comprises a gravity coarse crushing device, an extrusion grinding intermediate crushing device, a multistage ball milling fine crushing device and a wastewater recycling device, wherein the gravity coarse crushing device, the extrusion grinding intermediate crushing device and the multistage ball milling fine crushing device are sequentially arranged in an inner shell 53 from top to bottom;
the gravity coarse crushing device comprises a gas communicating pipe 3, an air pressure lifter 4, a lifting electromagnet 7, an anti-collision rubber layer 8, a limiting rubber layer 9, a gravity crushing disc 10, an inverted cone crusher 11, an air compressor 12, a porous bearing disc 13, a pneumatic spring 14, a primary crushing device bearing plate 19, a primary crushing movable electric machine set 20, an ore input spraying device 21, a passive switch 22, a baffle plate 23, a conveying belt 24, a strip-shaped heater 25 and a primary crushing ore collector 29; the lifting electromagnet 7 is fixed at the top end of the inner shell 53, and the air compressor 12 is positioned at the side edge of the inner shell 53; the air compressor 12 is connected with the air pressure lifter 4 through the gas communicating pipe 3, the air pressure lifter 4 penetrates through the lifting electromagnet 7 and is connected with the gravity crushing disc 10 through the anti-collision rubber layer 8, the anti-collision rubber layer 8 is fixed on the gravity crushing disc 10, the limiting rubber layer 9 is arranged around the gravity crushing disc 10, and the limiting rubber layer 9 is fixed on the side wall of the inner shell 53; an inverted cone crusher 11 is arranged below the gravity crushing disc 10, a porous bearing disc 13 is arranged under the gravity crushing disc 10, the porous bearing disc 13 is arranged on a bearing plate 19 of a primary crushing device, the porous bearing disc 13 and the bearing plate 19 of the primary crushing device are supported by a plurality of pneumatic springs 14, the lower ends of the pneumatic springs 14 are fixed on the bearing plate 19 of the primary crushing device, the bearing plate 19 of the primary crushing device is fixed on the side wall of an inner shell 53, and the porous bearing disc 13 is connected with a primary crushing movable motor unit 20; an ore inlet is arranged on the side surface of the gravity coarse crushing device, a baffle plate 23 is arranged at the ore inlet, a conveying belt 24 and a strip-shaped heater 25 are arranged between the outer shell 1 and the inner shell 53 and are opposite to the ore inlet, the conveying belt 24 is arranged on the strip-shaped heater 25, and the ore input spraying device 21 is positioned right above the conveying belt 24; a primary crushed ore collector 29 is arranged below the bearing plate 19 of the primary crushing device, and the primary crushed ore collector 29 is fixed on the inner shell 53; the lifting electromagnet 7 is connected with an alternating current power supply; the passive switch 22 is fixed on the inner shell 53, penetrates through the limiting rubber layer 9, and is contacted with the passive switch 22 when the gravity crushing disc 10 descends; the passive switch 22 is simultaneously connected with the motor of the conveyer belt 24 and the primary crushing movable motor unit 20;
before the ore drops into the device, the ore forms expend with heat and contract with cold effect through the effect of ore input spray set 21 and strip heater 25, makes the inside joint crack of ore fully develop, improves the efficiency and the reliability that gravity was coarse garrulous.
The middle crushing device for extrusion grinding comprises a middle crushing upper disc 30, a middle crushing upper disc grinding ball 31, a middle crushing lower disc 32, a middle crushing movable motor group 33, a middle crushing bearing 34, a middle crushing lower disc grinding ball 35, a primary crushing ore inlet 36, a fine crushing ore collector 37 and a side grinding ball 58, wherein the middle crushing upper disc grinding ball 31 is arranged on the lower surface of the middle crushing upper disc 30, the middle crushing upper disc 30 is provided with the primary crushing ore inlet 36 and penetrates through the upper surface and the lower surface of the middle crushing upper disc 30, and the upper surface of the primary crushing ore inlet 36 is communicated with the primary crushing ore collector 29; a middle crushing lower disc 32 is arranged right below the middle crushing upper disc 30, and the upper surface of the middle crushing lower disc 32 is provided with a middle crushing lower disc grinding ball 35; the middle-crushing lower disc 32 is connected with a middle-crushing movable motor group 33 through a middle-crushing bearing 34, the middle-crushing movable motor group 33 is positioned below the middle-crushing lower disc 32 and is fixed on a bearing plate, and the bearing plate is fixed on the inner shell 53; the side wall of the inner shell 53 is fixed with a side grinding ball 58 which is positioned between the upper middle crushing disk 30 and the lower middle crushing disk 32; a fine ore collector 37 is arranged below the middle crushing lower disc 32;
the ball milling device comprises a multi-stage ball milling fine crushing device ball milling bearing 38, a ball milling motor 39, an ore screening device 44, a primary ball milling device 45, a middle ball milling device 46, a tail end ball milling device 47, a water outlet 57, a multi-stage ball milling flange 60, a multi-stage aperture filter screen 62 and a water collector 64, wherein the primary ball milling device 45 is communicated with a fine crushing ore collector 37, the primary ball milling device 45, the middle ball milling device 46 and the tail end ball milling device 47 are sequentially communicated, the ball milling bearing 38 is arranged on one side of the primary ball milling device 45 opposite to the tail end ball milling device 47, the ball milling bearing 38 is fixed on a ball milling fixer 43, the ball milling motor 39 is fixed on a motor angle adjusting plate 40, the ball milling motor 39 is connected with a speed changer 42, and the speed changer 42 is connected with the ball milling bearing 38 through a motor gear 41; the ball milling motor 39 drives the first ball milling device 45, the middle ball milling device 46 and the tail ball milling device 47 to rotate; an ore screening device 44 is arranged at the joint of the primary ball milling device 45, the middle ball milling device 46 and the tail end ball milling device 47, the ore screening device 44 comprises a multi-stage ball milling flange plate 60 and a multi-stage aperture filter screen 62, the multi-stage aperture filter screen 62 is fixed on the multi-stage ball milling flange plate 60, and the multi-stage ball milling flange plate 60 is fixed on the shell of the ball milling device; a circle of water filtering holes are formed in the outer shells of the primary ball milling device 45, the middle ball milling device 46 and the tail end ball milling device 47, and the aperture of the water filtering holes in the tail end ball milling device 47 is larger than that of the water filtering holes in the primary ball milling device 45 and the middle ball milling device 46; an annular water collector 64 is arranged at a position corresponding to the water filtering holes, the water collector 64 is fixed at the bottom of the outer shell 1 through a water collector bracket 59, a water outlet 57 is arranged below the water collector 64, the water outlets 57 corresponding to the primary ball milling device 45 and the middle ball milling device 46 are positioned right above the wastewater collecting tank 52, and the water outlet 57 of the tail end ball milling device 47 is positioned right above the finished product output belt 56 as an ore pulp outlet;
the waste water recycling device comprises a water storage tank 49, a recycling water pipe 50, a water suction pump 51, a waste water collecting tank 52 and a water outlet 57, wherein the water storage tank 49 is positioned above the ore input spraying device 21 and is communicated with the waste water collecting tank 52 through the recycling water pipe 50 and the water suction pump 51, the waste water collecting tank 52 is positioned below the multi-stage ball milling and fine crushing device, and the water outlet 57 of each stage is positioned right above the waste water collecting tank 52; the water storage tank 49 is communicated with the external water pipe 48 and the ore input spraying device 21.
As another embodiment of the present invention, the air pressure lifter 4 includes a housing, air pressure lifting bearings 5, and an air pressure lifter baffle 6, wherein a plurality of mutually nested air pressure lifting bearings 5 are sequentially disposed inside the housing from inside to outside, the upper end of each air pressure lifting bearing 5 is provided with a hook angle, the lower end of an adjacent air pressure lifting bearing is provided with a slot corresponding to the hook angle, and the lower end of the air pressure lifter housing is provided with the air pressure lifter baffle 6 for fixing the outermost air pressure lifting bearing 5.
As another embodiment of the invention, the pneumatic spring 14 comprises a top bearing plate 15, an inner airtight clamping plate 16 and an outer limiting plate 17, the top bearing plate 15 is connected with the inner airtight clamping plate 16 through a bearing, the outer limiting plate 17 is positioned between the top bearing plate 15 and the inner airtight clamping plate 16 and fixed on the side wall of the pneumatic spring 14, the lower surface of the inner airtight clamping plate 16 is connected with a spring, the spring is fixed at the bottom of the pneumatic spring 14, and the design of the pneumatic spring 14 can reduce the impact action of the gravity crushing disc 10 on the whole device when gravity coarse crushing is carried out.
As another embodiment of the invention, the passive switch 22 comprises a conical head iron bar 26, an external interface 27, an energizing iron block 28 and a self-locking switch 18, the top of the conical head iron bar 26 is conical, the top passes through the limiting rubber layer 9, the other end of the conical head iron bar is connected with one end of the self-locking switch 18, the other end of the self-locking switch 18 is connected with a spring, the energizing iron block 28 is fixed on the spring, and the energizing iron block 28 is connected with or disconnected from the external interface 27 by controlling the extension and contraction of the spring.
As another preferred embodiment of the invention, the outer periphery of the porous bearing disc 13 is high, the inner periphery is low, the gradient is 5 per mill to 10 per mill, the bottom pneumatic spring 14 is gradually reduced from outside to inside, and the primary crushing movable motor unit 20 is connected with the porous bearing disc 13 through a rotating shaft.
As a preferred embodiment of the invention, the device also comprises a sound-deadening sponge layer 2 which is positioned between the outer shell 1 and the inner shell 53 and can effectively prevent noise injury to operators when the device is in operation.
In a preferred embodiment of the present invention, the device further comprises an inspection manhole 55 and a man ladder 54, wherein the man ladder 54 is located between the outer shell 1 and the inner shell 53, so that the device can be conveniently overhauled and maintained in case of failure.
As another embodiment of the present invention, a water-filtering geotextile layer 61 is provided between the multi-stage aperture filter screen 62 and the multi-stage ball-milling flange 60, the multi-stage ball-milling flange 60 is fixed on the ball-milling device by fixing screws 63, the particle size that the multi-stage aperture filter screen 62 between the first-stage ball-milling device 45, the middle-stage ball-milling device 46 and the end ball-milling device 47 can pass through is gradually reduced, and the gradation of the grinding balls used in the first-stage ball-milling device 45, the middle-stage ball-milling device 46 and the end ball-milling device 47 is higher and higher.
In another embodiment of the present invention, a circle of water filtering holes are formed in the outer shell of the terminal ball mill 47, the diameter of the water filtering holes in the terminal ball mill 47 is any value from 0.15 to 0.17mm (in this embodiment, 0.16 mm), and the diameters of the water filtering holes in the initial ball mill 45 and the middle ball mill 46 are any value from 0.1 to 0.13mm (in this embodiment, 0.12 mm).
The using process of the device in the embodiment is as follows:
(1) Selecting a stable plane soil body on site, and firstly placing a bottom flat plate of the outer shell 1 in the soil body to determine whether the bottom of the soil body is horizontal; next, mounting the multistage ball milling fine crushing device on a flat plate at the bottom of the outer shell 1, and then welding the corresponding inner shell 53; then, the extrusion milling intermediate crushing device is arranged on a multi-stage ball milling fine crushing device, and the lower plane of a horizontal steel plate between the inner shell 53 and the outer shell 1 is welded; continuously installing the gravity coarse crushing device on an extrusion grinding middle crushing device, and welding the upper plane of a horizontal steel plate between the inner shell 53 and the outer shell 1; and finally, installing the outer shell 1, installing a wastewater recycling device, a noise reduction device and an auxiliary device, and after all parts are assembled and debugged, starting to operate.
(2) The high-temperature-resistant iron transportation 24 belt is started, the ore input spraying device 21 and the strip-shaped heater 25 are also respectively started to carry out primary treatment on the raw ore, joint cracks in the raw ore fully develop by utilizing the principle of thermal expansion and cold contraction, and the raw ore is conveyed into the gravity coarse crushing device; the baffle 23 is opened, and the ore enters the gravity coarse crushing device; the preliminary crushing movable motor unit 20 is started to drive the porous bearing disc 13 to rotate, so that the raw ores are uniformly distributed on the porous bearing disc 13; the porous bearing disc 13 and the lower pneumatic spring 14 are in a relaxed state; the lifting electromagnet 7 is powered off, and the gravity crushing disc 10 loses magnetic force and falls freely; the gravity crushing disc 10 moves to the passive switch 22, the head cone iron rod 26 is extruded to contact the electrified iron block 28, the conveying belt 24 and the preliminary crushing movable motor unit 20 are powered off, the conveying of the raw ore is stopped, and the baffle 23 is closed; the gravity crushing disc 10 moves downwards, the air pressure lifting bearing 5 stretches downwards, the internal volume is increased, air enters the air pressure lifter 4 through the air compressor 12, and negative pressure is formed by the air compressor 12; the gravity crushing disc 10 finally crushes the porous bearing disc 13, the raw ore is crushed through the inverted cone crusher 11, and the cone pierces the hard ore to perform primary crushing; the pneumatic spring 14 in the porous bearing disc 13 is subjected to impulse force, the impulse force is absorbed by contraction, and after the deformation limit is reached, the pneumatic spring of the lower part 14 also contracts to absorb the impulse force; the ore which is subjected to primary crushing and has the size smaller than that of the porous bearing disc 13 falls into a primary crushing ore collector 29 to enter an extrusion grinding secondary crushing device for secondary crushing, and the process is continued until the size does not reach the required size until the requirement is met; when the gravity crushing disc 10 reaches the bottom, the negative pressure of the air compressor 12 reaches the maximum value, under the action of the negative pressure, the air in the air pressure lifter 4 moves towards the air compressor 12, the air pressure lifter 4 forms the negative pressure, and the air pressure lifting bearing 5 lifts upwards to lift the gravity crushing disc 10 upwards; the pneumatic springs 14 in the porous bearing disc 13 and at the lower part rebound to lift the gravity crushing disc 10; the passive switch 22 is touched again in the lifting process, the conveyer belt 24 and the preliminary crushing movable motor unit 20 are electrified and started, and the raw ore is continuously input; the height of the lifting electromagnet 7 can be acted, and the gravity crushing disc 10 is attracted by magnetic force and finally returns to the original point; the gravity coarse crushing process is completed circularly.
(3) The coarsely crushed ore enters the extrusion grinding intermediate crushing device from the primary crushed ore collector 29, and secondary crushing is started; the primary crushed ore enters a primary crushed ore inlet 36 from a primary crushed ore collector 29 and enters an extrusion grinding intermediate crushing device for intermediate crushing; the middle-crushing movable motor group 33 is started to drive the transmission bearing, and then the middle-crushing upper disc 30 and the middle-crushing lower disc 32 are driven to move; the middle crushing device for extrusion milling rotationally extrudes and crushes ores through the upper middle crushing disc grinding balls 31 and the lower middle crushing disc grinding balls 35, so that the crushed ores meet the requirement of secondary crushing; the crushing is not completely moved to two sides, and secondary middle crushing is carried out by using the middle crushing lower disc 32 and the side grinding balls 58; the crushing process is completed in the extrusion milling.
(4) The ore body after the secondary crushing enters a fine crushing ore collector 37 for fine crushing and grinding; the crushed ore enters a primary ball milling device 45 through a fine ore collector 37; the ball milling motor 39 is started to drive the motor gear 41 and further drive the ball milling bearing 38; the rotating speed rate is 65% -76% through the speed changer 42; after reaching the standard through the primary ball milling device 45, the powder is 200-300 meshes, is specifically adjustable, and enters the middle ball milling device 46 through the ore screening device 44 according with the requirement; after reaching the standard through the middle ball milling device 46, the ball milling device has 50-100 meshes, is specifically adjustable, and enters the tail end ball milling device 47 through the ore screening device 44 according with the requirement; after the ore pulp passes through the tail end ball milling device 47 and reaches the standard, the ore pulp is 10-20 meshes, and is specifically adjustable, and the ore pulp meeting the requirements enters a finished product output belt 56 through a water outlet 57 of the tail end ball milling device 47; and finishing the extrusion ball milling process. In this process, the ore is passed through a multi-stage aperture screen 62 to the next stage ball mill, the wastewater is passed through the filter holes to a water collector 64, and the water collector 64 discharges the water used in each stage to the wastewater collection tank 52. The water pump 51 pumps the water in the wastewater collecting tank 52 to the water storage tank 49; the recovered water 50 in the water storage tank 49 and the external water 48 act together on the ore input spraying device 21 to perform dust reduction and joint crack expansion treatment. The shell body 1 and the silencing sponge layer 2 act together to fully absorb noise in work and reduce noise pollution. Finished ore is output through an ore discharge port, and the whole crushing and grinding industrial process is completed.
Claims (7)
1. A mining crushing and grinding integrated device is characterized by comprising a gravity coarse crushing device, an extrusion grinding middle crushing device, a multi-stage ball-milling fine crushing device and a wastewater recycling device, wherein the gravity coarse crushing device, the extrusion grinding middle crushing device and the multi-stage ball-milling fine crushing device are sequentially arranged in an inner shell (53) from top to bottom;
the gravity coarse crushing device comprises a gas communicating pipe (3), an air pressure lifter (4), a lifting electromagnet (7), an anti-collision rubber layer (8), a limiting rubber layer (9), a gravity crushing disc (10), an inverted cone crusher (11), an air compressor (12), a porous bearing disc (13), a pneumatic spring (14), a primary crushing device bearing plate (19), a primary crushing movable motor set (20), an ore input spraying device (21), a passive switch (22), a baffle plate (23), a conveying belt (24), a strip-shaped heater (25) and a primary crushing ore collector (29); the lifting electromagnet (7) is fixed at the top end of the inner shell (53), and the air compressor (12) is positioned on the side edge of the inner shell (53); the air compressor (12) is connected with the air pressure lifter (4) through the gas communicating pipe (3), the air pressure lifter (4) penetrates through the lifting electromagnet (7) and is connected with the gravity crushing disc (10) through the anti-collision rubber layer (8), the anti-collision rubber layer (8) is fixed on the gravity crushing disc (10), the limiting rubber layer (9) is arranged around the gravity crushing disc (10), and the limiting rubber layer (9) is fixed on the side wall of the inner shell (53); an inverted cone crusher (11) is arranged below the gravity crushing disc (10), a porous bearing disc (13) is arranged under the gravity crushing disc (10), the porous bearing disc (13) is arranged on a bearing plate (19) of a primary crushing device, the porous bearing disc (13) and the bearing plate (19) of the primary crushing device are supported through a plurality of pneumatic springs (14), the lower ends of the pneumatic springs (14) are fixed on the bearing plate (19) of the primary crushing device, the bearing plate (19) of the primary crushing device is fixed on the side wall of the inner shell (53), and the porous bearing disc (13) is connected with a primary crushing movable motor set (20); an ore inlet is formed in the side face of the gravity coarse crushing device, a baffle plate (23) is arranged at the ore inlet, a conveying belt (24) and a strip-shaped heater (25) are arranged between the outer shell (1) and the inner shell (53) and are opposite to the ore inlet, the conveying belt (24) is arranged above the strip-shaped heater (25), and the ore input spraying device (21) is positioned right above the conveying belt (24); a primary crushed ore collector (29) is arranged below the bearing plate (19) of the primary crushing device, and the primary crushed ore collector (29) is fixed on the inner shell (53); the lifting electromagnet (7) is connected with an alternating current power supply; the passive switch (22) is fixed on the inner shell (53) and penetrates through the limiting rubber layer (9), and the gravity crushing disc (10) is contacted with the passive switch (22) when descending; the passive switch (22) is simultaneously connected with the motor of the conveyer belt (24) and the primary crushing movable motor unit (20);
the middle crushing device for extrusion milling comprises a middle crushing upper disc (30), a middle crushing upper disc grinding ball (31), a middle crushing lower disc (32), a middle crushing movable motor set (33), a middle crushing bearing (34), a middle crushing lower disc grinding ball (35), a primary crushing ore inlet (36), a fine crushing ore collector (37) and side grinding balls (58), wherein the middle crushing upper disc grinding ball (31) is arranged on the lower surface of the middle crushing upper disc (30), the middle crushing upper disc (30) is provided with a primary crushing ore inlet (36) and penetrates through the upper surface and the lower surface of the middle crushing upper disc (30), and the upper surface of the primary crushing ore inlet (36) is communicated with the primary crushing ore collector (29); a middle crushing lower disc (32) is arranged right below the middle crushing upper disc (30), and the upper surface of the middle crushing lower disc (32) is provided with a middle crushing lower disc grinding ball (35); the middle-crushing lower disc (32) is connected with a middle-crushing movable motor set (33) through a middle-crushing bearing (34), the middle-crushing movable motor set (33) is positioned below the middle-crushing lower disc (32) and is fixed on a bearing plate, and the bearing plate is fixed on the inner shell (53); the side wall of the inner shell (53) is fixed with a side grinding ball (58) which is positioned between the upper middle crushing disc (30) and the lower middle crushing disc (32); a fine ore collector (37) is arranged below the middle crushing lower disc (32);
the multistage ball milling and fine crushing device comprises a ball milling bearing (38), a ball milling motor (39), an ore screening device (44), a primary ball milling device (45), a middle ball milling device (46), a tail end ball milling device (47), a water outlet (57), a multistage ball milling flange plate (60), a multistage aperture filter screen (62) and a water collector (64), wherein the primary ball milling device (45) is communicated with a fine ore collector (37), the primary ball milling device (45), the middle ball milling device (46) and the tail end ball milling device (47) are sequentially communicated, the ball milling bearing (38) is arranged on one side, opposite to the primary ball milling device (45) and the tail end ball milling device (47), the ball milling bearing (38) is fixed on a ball milling fixing device (43), the ball milling motor (39) is fixed on a motor angle adjusting plate (40), the ball milling motor (39) is connected with a speed changer (42), and the speed changer (42) is connected with the ball milling bearing (38) through a motor gear (41); the ball milling motor (39) drives the initial ball milling device (45), the middle ball milling device (46) and the tail end ball milling device (47) to rotate; an ore screening device (44) is arranged at the joint of the initial ball milling device (45), the middle ball milling device (46) and the tail end ball milling device (47), the ore screening device (44) comprises a multi-stage ball milling flange plate (60) and a multi-stage aperture filter screen (62), the multi-stage aperture filter screen (62) is fixed on the multi-stage ball milling flange plate (60), and the multi-stage ball milling flange plate (60) is fixed on a shell of the ball milling device; a circle of water filtering holes are formed in the outer shells of the primary ball milling device (45), the middle ball milling device (46) and the tail end ball milling device (47), and the aperture of the water filtering holes in the tail end ball milling device (47) is larger than that of the water filtering holes in the primary ball milling device (45) and the middle ball milling device (46); an annular water collector (64) is arranged at a position corresponding to the water filtering hole, the water collector (64) is fixed at the bottom of the outer shell (1) through a water collector support (59), a water outlet (57) is arranged below the water collector (64), the water outlets (57) corresponding to the first-stage ball milling device (45) and the middle-stage ball milling device (46) are positioned right above the wastewater concentration tank (52), and the water outlet (57) of the tail-end ball milling device (47) is positioned right above the finished product output belt (56) as an ore pulp outlet;
the waste water recycling device comprises a water storage tank (49), a recycling water pipe (50), a water suction pump (51), a waste water collecting tank (52) and a water outlet (57), wherein the water storage tank (49) is positioned above the ore input spraying device (21) and is communicated with the waste water collecting tank (52) through the recycling water pipe (50) and the water suction pump (51), the waste water collecting tank (52) is positioned below the multistage ball milling fine crushing device, and the water outlet (57) of each stage is positioned right above the waste water collecting tank (52); the water storage tank (49) and an external water pipe (48) are simultaneously communicated with the ore input spraying device (21);
the silencing sponge layer (2) is positioned between the outer shell (1) and the inner shell (53);
an inspection manhole (55) and a man ladder (54) are also covered, and the man ladder (54) is positioned between the outer shell (1) and the inner shell (53).
2. The mining integrated crushing and grinding device according to claim 1, wherein: atmospheric pressure lift (4) are including the shell, atmospheric pressure lift bearing (5), atmospheric pressure lift baffle (6), the inside of shell is equipped with a plurality of atmospheric pressure lift bearing (5) nested each other from inside to outside in proper order, the upper end of every grade atmospheric pressure lift bearing (5) all is equipped with colludes the angle, the lower extreme of adjacent atmospheric pressure lift bearing is equipped with the draw-in groove that corresponds with colluding the angle, the lower extreme of atmospheric pressure lift shell is equipped with atmospheric pressure lift baffle (6) for fixed outmost atmospheric pressure lift bearing (5).
3. The mining integrated crushing and grinding device according to claim 1, wherein: pneumatic spring (14) include top bearing plate (15), inside airtight screens board (16), outside limiting plate (17), top bearing plate (15) are connected with inside airtight screens board (16) through the bearing, outside limiting plate (17) are located between top bearing plate (15) and inside airtight screens board (16), fix on pneumatic spring's (14) lateral wall, below and spring coupling of inside airtight screens board (16), the bottom at pneumatic spring (14) is fixed to the spring.
4. The mining grinding and crushing integrated device according to claim 1, wherein: the passive switch (22) comprises a conical head iron rod (26), an outer interface (27), an electrified iron block (28) and a self-locking switch (18), the top of the conical head iron rod (26) is conical, the top of the conical head iron rod penetrates through the limiting rubber layer (9), the other end of the conical head iron rod is connected with one end of the self-locking switch (18), the other end of the self-locking switch (18) is connected with a spring, the electrified iron block (28) is fixed on the spring, and the electrified iron block (28) is communicated or disconnected with the outer interface (27) by controlling the extension of the spring.
5. The mining grinding and crushing integrated device according to claim 1, wherein: the porous bearing disc (13) is high in outer periphery and low in inner periphery, the gradient is 5-10 per mill, the height of a bottom pneumatic spring (14) is gradually reduced from outside to inside, and the preliminary crushing movable motor set (20) is connected with the porous bearing disc (13) through a rotating shaft.
6. The mining grinding and crushing integrated device according to claim 1, wherein: be equipped with drainage geotechnological cloth layer (61) between multistage aperture filter screen (62) and multistage ball-milling flange dish (60), multistage ball-milling flange dish (60) are fixed on the ball-milling device through set screw (63), and the particle diameter that multistage aperture filter screen (62) between first section ball-milling device (45), middle section ball-milling device (46) and terminal ball-milling device (47) can pass reduces step by step.
7. The mining integrated crushing and grinding device according to claim 1, wherein: a circle of water filtering holes are formed in the outer shell of the tail end ball milling device (47), the aperture of the water filtering holes in the tail end ball milling device (47) is 0.15-0.17mm, and the aperture of the water filtering holes in the initial segment ball milling device (45) and the middle segment ball milling device (46) is 0.1-0.13mm.
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