CN115400825A - Production equipment and process with efficient dust removal function for preparing aggregate from mining waste rocks - Google Patents
Production equipment and process with efficient dust removal function for preparing aggregate from mining waste rocks Download PDFInfo
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- CN115400825A CN115400825A CN202110591872.XA CN202110591872A CN115400825A CN 115400825 A CN115400825 A CN 115400825A CN 202110591872 A CN202110591872 A CN 202110591872A CN 115400825 A CN115400825 A CN 115400825A
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- 239000000428 dust Substances 0.000 title claims abstract description 90
- 239000011435 rock Substances 0.000 title claims abstract description 41
- 238000005065 mining Methods 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 239000002699 waste material Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims description 20
- 238000004140 cleaning Methods 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 55
- 239000000463 material Substances 0.000 claims description 36
- 238000012216 screening Methods 0.000 claims description 28
- 229910052742 iron Inorganic materials 0.000 claims description 27
- 239000010878 waste rock Substances 0.000 claims description 27
- 230000003139 buffering effect Effects 0.000 claims description 16
- 239000004575 stone Substances 0.000 claims description 12
- 238000007689 inspection Methods 0.000 claims description 11
- 238000009423 ventilation Methods 0.000 claims description 10
- 238000005453 pelletization Methods 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 7
- 238000010409 ironing Methods 0.000 claims description 5
- 239000010419 fine particle Substances 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 7
- 239000011707 mineral Substances 0.000 abstract description 7
- 230000002411 adverse Effects 0.000 abstract 1
- 230000007774 longterm Effects 0.000 abstract 1
- 238000011049 filling Methods 0.000 description 14
- 238000007664 blowing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 206010024796 Logorrhoea Diseases 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- 230000005641 tunneling Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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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
- B02C1/00—Crushing or disintegrating by reciprocating members
- B02C1/02—Jaw crushers or pulverisers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
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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
- B02C2/00—Crushing or disintegrating by gyratory or cone crushers
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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
-
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention belongs to the technical field of mineral processing, and particularly relates to production equipment and a production process with efficient dust removal for preparing aggregate from mining waste rocks. According to the invention, the high-efficiency cleaning of dust is realized through the double cooperation of gas and vibration, the adverse phenomenon caused by long-term stockpiling of mining waste rocks on the earth surface is solved, and the waste rocks are effectively and reasonably utilized, so that the resource utilization of the waste rocks is realized, mineral resources are fully utilized, and the resource utilization rate is improved.
Description
Technical Field
The invention belongs to the technical field of mineral processing, and particularly relates to production equipment and a process for preparing aggregate from mining waste rocks with high-efficiency dust removal.
Background
The barren rocks are relative to ores which contain more useful minerals and have exploitation and utilization values, and the barren rocks generally contain no useful minerals or few useful minerals, and the barren rocks are mainly generated in the process of tunneling and stripping in ore exploitation.
At present, mining barren rock does not have better utilization way temporarily, most of mining barren rock can only be piled up and stored in a barren rock field, open-air mining barren rock can be directly transported to a designated place by an automobile and stored in a pile, underground mining barren rock needs to be transported to the earth surface by a shaft through a lifting device and then stored in a pile, the pile of barren rock not only occupies a large amount of land, but also under the action of wind, fine particle barren rock can be scattered all around, dust is raised, serious pollution is caused to air, in rainy areas, geological disasters such as debris flow are easily caused, in serious cases, life and property safety of people can be endangered, therefore, effective treatment needs to be carried out on mining barren rock, waste utilization of mining barren rock is achieved, a large amount of dust can be generated in the waste disposal process of barren rock, therefore, a dust removal system needs to be adopted to clear away the dust, traditional dust removal is realized through a high-pressure air flow back flushing or pulse air blowing mode to clear away the dust, the dust can only be adhered to the dust on the surface of a cleaning device when dust removal treatment is carried out, the dust removal, and the problem that the moisture removal technology can not be carried out is urgently solved, and accordingly, and the aggregate preparation of the aggregate is needed to solve the moisture type dust removal technology is a high-free of dust removal efficiency.
Disclosure of Invention
The invention aims to provide production equipment and a production process for preparing aggregates from mining waste rocks, which have high dust removal effect and are used for solving the problems of low dust removal efficiency and environmental influence caused by mining waste rocks.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a mining barren rock preparation aggregate is with production facility that has high-efficient dust removal, includes hydraulic pressure stone crusher, wheel loader, receives ore bin, jaw breaker and dust pelletizing system, the external connection of jaw breaker to sixth belt conveyor has dust pelletizing system, dust pelletizing system includes the dust removal casing, the left side of dust removal casing is provided with the gas receiver, the right side of gas receiver is provided with the outlet duct, the top of outlet duct is provided with the pulse valve, the inside of dust removal casing is provided with strains a section of thick bamboo, the below of outlet duct is connected with the air duct, the below of air duct is connected with the stand pipe, the external connection of stand pipe has the stay tube, the right side of stand pipe is provided with drive assembly, and drive assembly is in the inside of stay tube.
Preferably, one end of the ore receiving bin is connected with a rod feeding machine, the other end of the rod feeding machine is connected with a jaw crusher, the other end of the jaw crusher is connected with a first belt conveyor, a first electromagnetic iron remover is arranged above the first belt conveyor, the other end of the first belt conveyor is connected with a first cone crusher, a second belt conveyor is arranged below the first cone crusher, a third belt conveyor is connected below the second belt conveyor, a second cone crusher is arranged above the second belt conveyor, a fifth belt conveyor is arranged above the second cone crusher, a second electromagnetic iron remover is arranged above the fifth belt conveyor, a buffering ore bin is arranged above the other end of the fifth belt conveyor, the bottom of the buffering ore bin is provided with a movable flat gate, a bin wall vibrator is arranged inside the buffering ore bin, the top of the buffering ore bin is connected with a fourth belt conveyor, the other end of the fourth belt conveyor is connected with a circular vibrating conveyor, a circular sieve is connected with a sixth belt conveyor, and a sixth belt conveyor is connected with aggregate products.
Preferably, the ore receiving bin is a reinforced concrete rectangular funnel bin, the top of the bin is provided with a fixed grid sieve, the ore storage time is 1-1.5 h, the buffer ore bin is a steel structure rectangular conical bottom bin, and the ore storage time is 30-40 min.
Preferably, the jaw crusher is coarse crushing equipment, the maximum feeding granularity is 500mm, the adjusting range of the ore discharge port is 60 mm-170 mm, the first cone crusher is medium crushing equipment, the maximum feeding granularity is 200mm, the adjusting range of the ore discharge port is 16 mm-40 mm, the second cone crusher is fine crushing equipment, the maximum feeding granularity is 80mm, and the adjusting range of the ore discharge port is 13 mm-38 mm.
Preferably, the first belt conveyor and the fifth belt conveyor are both provided with an electronic belt scale and a variable-frequency speed regulating device, and the first electromagnetic iron remover is arranged above the material conveying section of the first belt conveyor.
Preferably, the second electromagnetic iron remover is installed above the material conveying section of the fifth belt conveyor, the circular vibrating screen adopts double-layer screen surfaces, the screen hole size of the upper-layer screen surface is 35mm multiplied by 55mm, the screen hole size of the lower-layer screen surface is 14mm multiplied by 22mm, and the dust removal system comprises a dust remover, an induced draft fan and a dust removal air pipe.
Preferably, the right side of stand pipe is provided with four arc ventilation grooves, and the right side in ventilation groove is provided with the wind oar, the right-hand member of stay tube is provided with the net that ventilates, and the center of ventilating the net is provided with ball bearing, and ball bearing's center runs through there is the drive shaft.
Preferably, the driving assembly comprises a wind paddle, a driving shaft is arranged on the right side of the wind paddle, a cam is connected to the outside of the driving shaft, a needle bearing is arranged on the outside of the driving shaft and connected to the inside of the supporting frame, a spring is arranged inside the supporting frame, a telescopic column is arranged above the spring, and a filter cylinder is connected to the upper side of the telescopic column.
Preferably, four groups of springs are arranged and are respectively positioned at four corners of the filter cylinder, a limiting groove is formed in the outer portion of each spring, and the inner diameter of the top of each limiting groove is smaller than the diameter of the bottom of each telescopic column.
A production process for preparing aggregate from mining waste rock with high-efficiency dust removal comprises the following steps:
s1, a three-section-closed crushing and screening process is adopted for processing the waste rock aggregate, namely, coarse crushing and intermediate crushing are performed in an open circuit mode, fine crushing and pre-inspection screening constitute a closed circuit cycle, the maximum granularity of the waste rock raw ore is 700mm, large waste rocks are crushed by a hydraulic stone crusher, the waste rocks with the granularity smaller than 500mm are fed into a receiving bin provided with a fixed grid screen by a wheel loader, materials in the receiving bin are fed into a jaw crusher through a bar feeder to be coarsely crushed, and coarsely crushed products and fine materials discharged from bar gaps of the bar feeder are fed into a first cone crusher through a first belt conveyor to be intermediately crushed;
s2, transferring and feeding middle-crushed products into a circular vibrating screen through a second belt conveyor and a third belt conveyor to perform middle-crushing, inspecting and screening and pre-screening before fine crushing, wherein undersize materials of a lower-layer screen of the circular vibrating screen are qualified aggregate (the granularity is smaller than 12 mm), conveying the qualified aggregate to an aggregate product bin through a sixth belt conveyor, collecting oversize materials of an upper-layer screen and the lower-layer screen, conveying the oversize materials into a buffer ore bin through a fourth belt conveyor, feeding the qualified aggregate into a second cone crusher through an electro-hydraulic flat gate by a fifth belt conveyor to perform fine crushing, returning the fine crushed products to the circular vibrating screen to perform inspection and screening to form closed cycle, wherein a first electromagnetic iron remover is used for removing iron pieces in materials of the first belt conveyor, and a second electromagnetic iron remover is used for removing iron pieces in materials of the fifth belt conveyor;
s3, dust air enters from the upper side of the filter cylinder and is filtered through the filter cylinder, clean air is discharged from the lower left corner of the dust removal shell, dust falls into the dust hopper below the filter cylinder, the pulse valve is opened, air is ventilated through the air outlet pipe, meanwhile, air is blown out through the air guide pipe and the guide pipe, the air paddles are driven to rotate, the cam is driven to rotate through the driving shaft, vibration striking of the cam on the filter cylinder is achieved, and efficient cleaning of the dust is accelerated.
Compared with the prior art, the invention has the beneficial effects that: the high-efficient clearance to the dust is realized through the dual cooperation of gas and vibration, has solved the unfavorable phenomenon that mining barren rock brought in the earth's surface stockpiling for a long time, has carried out effective rational utilization to barren rock to realized the resourceization of barren rock, made mineral resources obtain make full use of, improved resource utilization.
According to the invention, the filter cylinder dust remover is improved in the process of preparing the filling aggregate from the mining waste rock, the traditional air flow blowing dust cleaning mode is improved, when the high-pressure air is blown, the driving shaft can be rotated by driving the wind paddles, the cam can be driven, the filter cylinder can be vibrated and hit by rotating the cam, and further, the refractory dust and the moist dust adhered to the interior of the filter cylinder can be loosened, and the dust can be efficiently cleaned by matching with the blowing of the air flow, so that the refractory dust is prevented from being accumulated.
The waste rock preparation process can use waste rock, natural river sand, ore dressing tailing and rod mill sand with qualified granularity as mine filling aggregate, the filling is a process of mixing and stirring various aggregates, gelatinizing agents and other materials according to a certain proportion to prepare filling slurry and automatically flowing or pumping the filling slurry to a filling stope through a pipeline to form a stable filling body, waste rock resources have certain advantages in the aspects of raw material cost, conveying distance and filling body stability, the waste rock is stacked near the stope, local materials can be used during filling, the raw material cost and the conveying cost can be greatly saved, meanwhile, the waste rock is used as one of the aggregates and added into the filling slurry, the strength and the stability of the filling body can be obviously improved, the consumption of the gelatinizing materials (composite cement) can be reduced, and the filling operation cost is further reduced, so that the waste rock resources are popularized as the filling aggregates, and the method has important significance for the reliability of the filling technology, the cost saving and the mining safety.
The waste rock preparation process adopts a 'three-section-closed-circuit' crushing and screening process, namely, a coarse crushing process, a middle crushing process, an open circuit process, a fine crushing process, a pre-screening process and an inspection screening process to form a closed cycle, so that the mutual matching of the three-section crushing and screening process can be realized in the preparation process of mining waste rock, the screening effect of the three-section crushing and screening process forms the closed cycle, unqualified products are subjected to circulating crushing and screening, the screening efficiency of the waste rock is improved, the size of the waste rock aggregate is ensured, the middle crushing product before fine crushing can be pre-screened, the fine crushing product can be inspected and screened, the production capacity of fine crushing equipment is fully exerted on the premise of ensuring the qualified granularity of the waste rock aggregate, and the crushing and treatment of the mining waste rock can be fully realized through the setting of the closed cycle, the qualified granularity of the waste rock aggregate is ensured, and the crushing efficiency of the waste rock is improved.
Drawings
FIG. 1 is a schematic diagram of the apparatus of the production process of the present invention;
FIG. 2 is a block diagram of a production process of the present invention;
FIG. 3 is a schematic cross-sectional front view of a filter cartridge collector of the present invention;
FIG. 4 is a front sectional view of a portion of the driving assembly of the present invention;
FIG. 5 is a front view of the cam of the present invention;
fig. 6 is an enlarged view of a structure shown in fig. 5 according to the present invention.
In the figure: 1. a hydraulic stone crusher; 2. a wheel loader; 3. a receiving bin; 4. a rod feeder; 5. a jaw crusher; 6. a first belt conveyor; 7. a first electromagnetic iron remover; 8. a first cone crusher; 9. a second belt conveyor; 10. a third belt conveyor; 11. a circular vibrating screen; 12. a fourth belt conveyor; 13. buffering the ore bin; 14. a bin wall vibrator; 15. an electro-hydraulic bulkhead gate; 16. a fifth belt conveyor; 17. a second electromagnetic iron remover; 18. a second cone crusher; 19. a sixth belt conveyor; 20. an aggregate product bin; 21. a dust removal system; 211. a dust removal housing; 212. an air cylinder; 213. a pulse valve; 214. an air outlet pipe; 215. a gas-guide tube; 216. a guide tube; 217. a drive assembly; 2171. a wind paddle; 2172. a drive shaft; 2173. a cam; 2174. a needle bearing; 2175. a support frame; 2176. a spring; 2177. a telescopic column; 218. supporting a tube; 219. a filter cartridge.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, several embodiments of the present invention are provided:
the utility model provides a production facility that mining barren rock preparation aggregate was with high-efficient dust removal, including hydraulic stone crusher 1, wheel loader 2, receive ore bin 3, jaw breaker 5 and dust pelletizing system 21, jaw breaker 5 to sixth belt conveyor 19's external connection has dust pelletizing system 21, dust pelletizing system 21 includes dust removal casing 211, the left side of dust removal casing 211 is provided with air receiver 212, the right side of air receiver 212 is provided with outlet duct 214, the top of outlet duct 214 is provided with pulse valve 213, the inside of dust removal casing 211 is provided with strains a section of thick bamboo 219, the below of outlet duct 214 is connected with air duct 215, the below of air duct 215 is connected with stand pipe 216, the external connection of stand pipe 216 has a stay tube 218, the right side of stand pipe 216 is provided with drive assembly 217, and drive assembly 217 is in the inside of stay tube 218.
Receive the one end of ore bin 3 to be connected with bar batcher 4, bar batcher 4 is provided with gap adjustable bar sifting surface at the tank bottom that is close to the ore discharge end, can reach the function of screening in advance, make fine fraction material separate in advance and get into the crushing apparatus, improve coarse crushing apparatus productivity, the other end of bar batcher 4 is connected with jaw crusher 5, the other end of jaw crusher 5 is connected with first band conveyer 6, the top of first band conveyer 6 is provided with first electromagnetism de-ironing separator 7, the other end of first band conveyer 6 is connected with first cone crusher 8, the below of first cone crusher 8 is provided with second band conveyer 9, the below of second band conveyer 9 is connected with third band conveyer 10, the top of second band conveyer 9 is provided with second cone crusher 18, the top of second cone crusher 18 is provided with fifth band conveyer 16, the top of fifth band conveyer 16 is provided with second electromagnetism de-ironing separator 17.
A buffering ore bin 13 is arranged above the other end of the fifth belt conveyor 16, a bin wall vibrator 14 is arranged on the bin wall of the buffering ore bin 13, materials can be prevented from being pressed or arched, the flowing of materials in the bin is promoted, the reliability of ore discharge is improved, an ore discharge port of the buffering ore bin 13 is provided with an electro-hydraulic flat gate 15, the opening degree of the ore discharge port can be adjusted through adjustment, the material flow can be flexibly controlled, the buffering ore bin is normally opened during normal production, and can be closed at any time during equipment maintenance, the bottom of the buffering ore bin 13 is provided with the electro-hydraulic flat gate 15, a bin wall vibrator 14 is arranged inside the buffering ore bin 13, the bin wall vibrator 14 is arranged at the conical section part of the buffering ore bin 13, a fourth belt conveyor 12 is connected above the buffering ore bin 13, the other end of the fourth belt conveyor 12 is connected with a circular vibrating screen 11, a sixth belt conveyor 19 is arranged below the circular vibrating screen 11, and the other end of the sixth belt conveyor 19 is connected with a product bin 20.
The ore receiving bin 3 is a reinforced concrete rectangular funnel bin, a fixed grid sieve is arranged on the top of the bin, the ore storage time is 1-1.5 hours, the buffering ore bin 13 is a steel-structure rectangular conical bottom bin, the ore storage time is 30-40 min, the ore receiving bin 3 and the buffering ore bin 13 are both provided with radar level gauges, the level of the ore bins is monitored in real time, high-low level alarm of the level is realized, interlocking of feeding equipment is realized, and safe operation of the system is guaranteed.
Jaw breaker 5 is coarse crushing equipment, the biggest feed granularity is 500mm, ore discharge mouth control range is 60mm ~ 170mm, first cone crusher 8 is well garrulous equipment, the biggest feed granularity is 200mm, ore discharge mouth control range is 16mm ~ 40mm, second cone crusher 18 is the equipment in small, the biggest feed granularity is 80mm, ore discharge mouth control range is 13mm ~ 38mm, in well garrulous, set up the electromagnetism de-ironing separator in small, give the ore skin area in small, can effectively get rid of the iron part in the barren rock, avoid cone crusher to cross iron and cause the damage to equipment and influence production, make cone crusher operation more stable, thereby improve cone crusher operating rate, reduce cone crusher operating cost.
The second electromagnetic iron remover 17 is installed above a material conveying section of a fifth belt conveyor 16, the circular vibrating screen 11 adopts a double-layer screen surface, the screen hole size of the upper layer screen surface is 35mm multiplied by 55mm, the screen hole size of the lower layer screen surface is 14mm multiplied by 22mm, the circular vibrating screen 11 integrates pre-screening and inspection screening, not only can pre-screen middle-crushed products before fine crushing, but also can inspect and screen fine-crushed products, the production capacity of fine crushing equipment is fully exerted on the premise that the granularity of waste stone aggregates is ensured to be qualified, the circular vibrating screen 11 adopts the double-layer screen surface, the upper layer screen mainly plays a role in weakening the impact force of the materials and assists in carrying out primary screening on the materials, the lower layer screen is a final link for controlling the granularity of the waste stone aggregates, the screening efficiency of the circular vibrating screen 11 is effectively improved, the oversize work is carried out after the collection of oversize products of the upper layer screen and the lower layer screen, the undersize products of the lower layer screen are final aggregate products, the dedusting system 21 comprises a deduster, a dedusting workshop and a dedusting air duct, and a draught fan is used for crushing, the dust-containing gas generated at the sieving position of the material, the dedusting and the dedusting workshop, and the dedusting operation is introduced into the dedusting operation system 21, and the environment is improved.
The right side of the guide pipe 216 is provided with four arc-shaped ventilation slots, and the right side of the ventilation slots is provided with a wind paddle 2171, the right end of the support pipe 218 is provided with a ventilation net, and the center of the ventilation net is provided with a ball bearing, and a drive shaft 2172 penetrates through the center of the ball bearing.
The driving assembly 217 comprises a wind paddle 2171, a driving shaft 2172 is arranged on the right side of the wind paddle 2171, a cam 2173 is connected to the outside of the driving shaft 2172, a needle bearing 2174 is arranged on the outside of the driving shaft 2172, the needle bearing 2174 is connected to the inside of a supporting frame 2175, a spring 2176 is arranged inside the supporting frame 2175, a telescopic column 2177 is arranged above the spring 2176, and a filter cartridge 219 is connected above the telescopic column 2177.
The spring 2176 is provided in four sets at the four corners of the filter cartridge 219, respectively, and the spring 2176 is provided with a retaining groove on the outside with the top inside diameter of the retaining groove being smaller than the bottom diameter of the telescoping column 2177.
A production process for preparing aggregate from mining waste rock, which has high-efficiency dust removal, comprises the following steps:
s1, a three-section one-closed-circuit crushing and screening process is adopted for processing the waste rock aggregate, namely, coarse crushing and intermediate crushing are performed in an open circuit mode, fine crushing and pre-inspection screening form a closed circuit cycle, the maximum granularity of the waste rock raw ore is 700mm, large waste rocks are crushed by a hydraulic stone crusher 1, waste rocks with the granularity smaller than 500mm are fed into a receiving bin 3 provided with a fixed grid screen by a wheel loader 2, materials in the receiving bin 3 are fed into a jaw crusher 5 through a bar feeder 4 for coarse crushing, coarse crushed products and fine particle materials discharged from bar gaps of the bar feeder 4 are fed into a first cone crusher 8 through a first belt conveyor 6 for intermediate crushing;
s2, middle-crushed products are transferred and fed into a circular vibrating screen 11 through a second belt conveyor 9 and a third belt conveyor 10 to be subjected to middle-crushing, inspection screening and fine crushing and are pre-screened before fine crushing, undersize of a lower layer screen of the circular vibrating screen 11 is qualified aggregate (the granularity is smaller than 12 mm), the qualified aggregate is conveyed to an aggregate product bin 20 through a sixth belt conveyor 19, oversize of an upper layer screen and oversize of a lower layer screen are collected and then conveyed into a buffer ore bin 13 through a fourth belt conveyor 12, and then fed into a second cone crusher 18 through an electro-hydraulic flat gate 15 by a fifth belt conveyor 16 to be subjected to fine crushing, the fine crushed products are returned to the circular vibrating screen 11 to be subjected to inspection screening to form closed circulation, a first electromagnetic iron remover 7 is used for removing iron pieces in the material of the first belt conveyor 6, and a second electromagnetic iron remover 17 is used for removing iron pieces in the material of the fifth belt conveyor 16;
s3, dust air enters from the upper portion of the filter cylinder 219 and is filtered through the filter cylinder 219, clean air is discharged from the lower left corner of the dust removal shell 211, dust falls into the dust hopper below the filter cylinder 219, the pulse valve 213 is opened, air is supplied through the air outlet pipe 214, meanwhile, the air is blown out through the air guide pipe 215 and the guide pipe 216 to drive the wind paddles 2171 to rotate, and then the cam 2173 is driven to rotate through the driving shaft 2172, so that the cam 2173 can vibrate and strike the filter cylinder 219, and efficient dust cleaning is accelerated.
The working principle is as follows: the large waste stones are smashed by a hydraulic stone crusher 1, the waste stones with the granularity smaller than 500mm are fed into a mine receiving bin 3 provided with a fixed grid sieve by a wheel loader 2, materials in the mine receiving bin 3 are fed into a jaw crusher 5 through a bar feeder 4 to be coarsely crushed, coarsely crushed products and fine materials discharged from a bar gap of the bar feeder 4 are fed into a first cone crusher 8 through a first belt conveyor 6 to be crushed, the coarsely crushed products are conveyed into a circular vibrating screen 11 through a second belt conveyor 9 and a third belt conveyor 10 to be sieved after being crushed and pre-sieved before fine crushing, and undersize materials of a lower-layer sieve of the circular vibrating screen 11 are qualified aggregates (the granularity is smaller than 12 mm) and are sent to an aggregate product bin 20 through a sixth belt conveyor 19.
After being gathered, oversize materials of an upper layer screen and an undersize screen are conveyed into a buffer ore bin 13 by a fourth belt conveyor 12, then are fed into a second cone crusher 18 by a fifth belt conveyor 16 through an electro-hydraulic flat gate 15 for fine crushing, a fine crushed product is returned to a circular vibrating screen 11 for inspection and screening to form a closed loop circulation, a first electromagnetic iron remover 7 is used for removing iron pieces in materials of a first belt conveyor 6, a second electromagnetic iron remover 17 is used for removing iron pieces in materials of the fifth belt conveyor 16, dust air is sucked through a dust removing air pipe in the process of crushing and conveying waste rocks, so that dust is filtered through the dust remover, the dust air enters from the upper part of a filter cylinder 219 and is filtered through the filter cylinder 219, clean air is discharged from the left lower corner of a dust removing shell 211, the dust falls into an ash hopper below the filter cylinder 219, a pulse valve 213 is opened, air is ventilated through an air outlet pipe 214, meanwhile, the air is blown out through an air guide pipe 215 and a guide paddle 216 to drive air 2171 to rotate, and further drive a cam 3 to rotate through a drive shaft so as to realize efficient vibration cleaning of the filter cylinder 219 and accelerate dust cleaning.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides a mining barren rock preparation aggregate is with production facility that has high-efficient dust removal, includes hydraulic stone crusher (1), wheel loader (2), receives ore bin (3), jaw breaker (5) and dust pelletizing system (21), its characterized in that: the dust removing device is characterized in that a dust removing system (21) is connected to the outer portions of the jaw crushers (5) to the sixth belt conveyor (19), the dust removing system (21) comprises a dust removing shell (211), an air storage cylinder (212) is arranged on the left side of the dust removing shell (211), an air outlet pipe (214) is arranged on the right side of the air storage cylinder (212), a pulse valve (213) is arranged above the air outlet pipe (214), a filter cylinder (219) is arranged inside the dust removing shell (211), an air guide pipe (215) is connected to the lower portion of the air outlet pipe (214), a guide pipe (216) is connected to the lower portion of the air guide pipe (215), a support pipe (218) is connected to the outer portion of the guide pipe (216), a driving assembly (217) is arranged on the right side of the guide pipe (216), and the driving assembly (217) is located inside the support pipe (218).
2. The production equipment with high-efficiency dust removal function for preparing the aggregate from the mining waste rocks as claimed in claim 1, characterized in that: one end of the ore receiving bin (3) is connected with a rod feeding machine (4), the other end of the rod feeding machine (4) is connected with a jaw crusher (5), the other end of the jaw crusher (5) is connected with a first belt conveyor (6), a first electromagnetic iron remover (7) is arranged above the first belt conveyor (6), the other end of the first belt conveyor (6) is connected with a first cone crusher (8), a second belt conveyor (9) is arranged below the first cone crusher (8), a third belt conveyor (10) is connected below the second belt conveyor (9), a second cone crusher (18) is arranged above the second belt conveyor (9), a fifth belt conveyor (16) is arranged above the second cone crusher (18), a second electromagnetic iron remover (17) is arranged above the fifth belt conveyor (16), a buffer electric belt conveyor (13) is arranged above the buffer electric belt conveyor (13) and is arranged above a buffer electric conveyor (13) of the buffer electric ore bin (13), the other end of the buffer electric ore receiving bin (13) is connected with a buffer gate (12), the bottom of the fourth belt conveyor (13) is connected with a buffer electric conveyor (13) of the hydraulic ore receiving bin (13), and a vibrator (12) is arranged above the fourth belt conveyor (13), a sixth belt conveyor (19) is arranged below the circular vibrating screen (11), and the other end of the sixth belt conveyor (19) is connected with an aggregate product bin (20).
3. The production equipment with high-efficiency dust removal function for preparing the aggregate from the mining waste rocks as claimed in claim 2, characterized in that: the ore receiving bin (3) is a reinforced concrete rectangular funnel bin, a fixed grid sieve is arranged at the top of the bin, the ore storage time is 1-1.5 h, the buffer ore bin (13) is a steel-structure rectangular conical bottom bin, and the ore storage time is 30-40 min.
4. The production equipment with high-efficiency dust removal function for preparing the aggregate from the mining waste rocks as claimed in claim 2, characterized in that: the jaw crusher (5) is coarse crushing equipment, the maximum feeding granularity is 500mm, the adjusting range of the ore discharge opening is 60 mm-170 mm, the first cone crusher (8) is middle crushing equipment, the maximum feeding granularity is 200mm, the adjusting range of the ore discharge opening is 16 mm-40 mm, the second cone crusher (18) is fine crushing equipment, the maximum feeding granularity is 80mm, and the adjusting range of the ore discharge opening is 13 mm-38 mm.
5. The production equipment with high-efficiency dust removal for preparing the aggregate from the mining waste rock, which is disclosed by claim 2, is characterized in that: the first belt conveyor (6) and the fifth belt conveyor (16) are both provided with an electronic belt scale and a variable-frequency speed regulating device, and the first electromagnetic iron remover (7) is installed above the material conveying section of the first belt conveyor (6).
6. The production equipment with high-efficiency dust removal function for preparing the aggregate from the mining waste rocks as claimed in claim 2, characterized in that: second electromagnetism de-ironing separator (17) are installed in fifth belt conveyor (16) material transport section top, circular vibrating screen (11) adopt double-deck sifter, and upper screen sieve mesh size is 35mm x 55mm, and lower floor's sifter sieve mesh size is 14mm x 22mm, dust pelletizing system (21) are including dust remover, draught fan to and the dust removal tuber pipe.
7. The production equipment with high-efficiency dust removal function for preparing the aggregate from the mining waste rocks as claimed in claim 1, characterized in that: the right side of stand pipe (216) is provided with four arc ventilation grooves, and the right side in ventilation groove is provided with wind oar (2171), the right-hand member of stay tube (218) is provided with the ventilation net, and the center of ventilation net is provided with ball bearing, and ball bearing's center has run through drive shaft (2172).
8. The production equipment with high-efficiency dust removal for preparing the aggregate from the mining waste rock, which is disclosed by claim 1, is characterized in that: the driving assembly (217) comprises a wind paddle (2171), a driving shaft (2172) is arranged on the right side of the wind paddle (2171), a cam (2173) is connected to the outside of the driving shaft (2172), a needle bearing (2174) is arranged on the outside of the driving shaft (2172), the needle bearing (2174) is connected to the inside of a supporting frame (2175), a spring (2176) is arranged inside the supporting frame (2175), a telescopic column (2177) is arranged above the spring (2176), and a filter cylinder (219) is connected to the upper portion of the telescopic column (2177).
9. The production equipment with high-efficiency dust removal for preparing the aggregate from the mining waste rock, which is disclosed by claim 8, is characterized in that: the springs (2176) are provided with four groups and are respectively arranged at four corners of the filter cylinder (219), the outer part of the spring (2176) is provided with a limiting groove, and the inner diameter of the top part of the limiting groove is smaller than the diameter of the bottom part of the telescopic column (2177).
10. The production process for preparing the aggregate from the mining waste rock, which is used for efficient dust removal, according to the claims 1 to 9, is characterized in that:
s1, a three-section one-closed-circuit crushing and screening process is adopted for processing waste rock aggregate, namely, coarse crushing and intermediate crushing are performed in an open circuit mode, fine crushing and pre-inspection screening form a closed circuit, the maximum granularity of the waste rock raw ore is 700mm, large waste rocks are crushed by a hydraulic stone crusher (1), waste rocks with the granularity of less than 500mm are fed into an ore receiving bin (3) provided with a fixed grid sieve by a wheel loader (2), materials in the ore receiving bin are fed into a jaw crusher (5) through a bar feeder (4) for coarse crushing, and coarse crushed products and fine particles discharged from bar gaps of the bar feeder (4) are fed into a first cone crusher (8) through a first belt conveyor (6) for intermediate crushing;
s2, middle-crushed products are transferred to a circular vibrating screen (11) through a second belt conveyor (9) and a third belt conveyor (10) to be subjected to middle-crushing, then are subjected to inspection screening and are subjected to pre-screening before fine crushing, undersize of a lower-layer screen of the circular vibrating screen (11) is qualified aggregate (the granularity is smaller than 12 mm), the qualified aggregate is conveyed to an aggregate product bin (20) through a sixth belt conveyor (19), oversize products of an upper-layer screen and the lower-layer screen are collected and then are conveyed to a buffering ore bin (13) through a fourth belt conveyor (12), the qualified aggregate is conveyed to a second cone crusher (18) through an electro-hydraulic flat gate (15) through a fifth belt conveyor (16) to be subjected to fine crushing, the fine crushed products are returned to the circular vibrating screen (11) to be subjected to inspection screening to form closed-loop circulation, a first electromagnetic iron remover (7) is used for removing iron pieces in materials of the first belt conveyor (6), and a second electromagnetic iron remover (17) is used for removing iron pieces in materials of the fifth belt conveyor (16);
s3, dust air enters from the upper portion of the filter cylinder (219), is filtered through the filter cylinder (219), is exhausted from the lower left corner of the dust removal shell (211), falls into the dust hopper below the filter cylinder (219), opens the pulse valve (213), is ventilated through the air outlet pipe (214), is blown out through the air guide pipe (215) and the guide pipe (216), drives the wind propeller (2171) to rotate, further drives the cam (2173) to rotate through the driving shaft (2172), realizes the vibration and impact of the cam (2173) on the filter cylinder (219), and accelerates the efficient cleaning of the dust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110591872.XA CN115400825A (en) | 2021-05-28 | 2021-05-28 | Production equipment and process with efficient dust removal function for preparing aggregate from mining waste rocks |
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|---|---|---|---|
| CN202110591872.XA CN115400825A (en) | 2021-05-28 | 2021-05-28 | Production equipment and process with efficient dust removal function for preparing aggregate from mining waste rocks |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117654728A (en) * | 2024-01-31 | 2024-03-08 | 西南交通建设集团股份有限公司 | Mineral exploitation breaker is used in mine |
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2021
- 2021-05-28 CN CN202110591872.XA patent/CN115400825A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117654728A (en) * | 2024-01-31 | 2024-03-08 | 西南交通建设集团股份有限公司 | Mineral exploitation breaker is used in mine |
| CN117654728B (en) * | 2024-01-31 | 2024-04-19 | 西南交通建设集团股份有限公司 | Mineral exploitation breaker is used in mine |
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