CN117299317B - Hematite iron concentrate powder ore dressing device - Google Patents
Hematite iron concentrate powder ore dressing device Download PDFInfo
- Publication number
- CN117299317B CN117299317B CN202311084200.5A CN202311084200A CN117299317B CN 117299317 B CN117299317 B CN 117299317B CN 202311084200 A CN202311084200 A CN 202311084200A CN 117299317 B CN117299317 B CN 117299317B
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- fixedly connected
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- rod
- grinding
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 229910052595 hematite Inorganic materials 0.000 title claims abstract description 17
- 239000011019 hematite Substances 0.000 title claims abstract description 17
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 17
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 239000012141 concentrate Substances 0.000 title claims abstract description 16
- 239000000843 powder Substances 0.000 title claims abstract description 16
- 239000000428 dust Substances 0.000 claims description 18
- 238000007670 refining Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 17
- 238000004804 winding Methods 0.000 claims description 12
- 238000012216 screening Methods 0.000 claims description 7
- 230000000087 stabilizing effect Effects 0.000 claims description 7
- 241000196324 Embryophyta Species 0.000 claims description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 5
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 5
- 241001330002 Bambuseae Species 0.000 claims description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 5
- 239000011425 bamboo Substances 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 16
- 238000000034 method Methods 0.000 description 12
- 238000007790 scraping Methods 0.000 description 10
- 210000000038 chest Anatomy 0.000 description 8
- 229910052500 inorganic mineral Inorganic materials 0.000 description 8
- 239000011707 mineral Substances 0.000 description 8
- 210000000481 breast Anatomy 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 239000003381 stabilizer Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- 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
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/02—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
- B02C13/06—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/28—Shape or construction of beater elements
- B02C13/2804—Shape or construction of beater elements the beater elements being rigidly connected to the rotor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/282—Shape or inner surface of mill-housings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/286—Feeding or discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/288—Ventilating, or influencing air circulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/30—Driving mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/20—Disintegrating by grating
-
- 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
-
- 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
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/286—Feeding or discharge
- B02C2013/28609—Discharge means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/286—Feeding or discharge
- B02C2013/28618—Feeding means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- 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
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
- B02C2023/165—Screen denying egress of oversize material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crushing And Grinding (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention discloses a hematite iron concentrate powder dressing device, which particularly relates to the technical field of dressing equipment.
Description
Technical Field
The invention relates to the technical field of mineral processing equipment, in particular to a hematite iron concentrate powder mineral processing device.
Background
The inventor finds that mineral separation equipment is often needed for processing hematite, iron ore and the like, mined raw ore is ground and screened through the mineral separation equipment, the raw ore enters the mineral separation equipment to be ground, then a part of ground raw ore is screened into a grinding cavity through a screen, and the raw ore enters the grinding cavity to be ground, but insufficient grinding possibly exists in the grinding process, so that the ground raw ore has larger volume, longer grinding time and larger particle raw ore can occur, and the grinding effect on the raw ore is reduced.
Disclosure of Invention
The invention provides a hematite iron concentrate powder ore dressing device for solving the problems that the grinding time is long, larger-particle raw ores can appear and the grinding effect on the raw ores is reduced due to the fact that the raw ores are possibly subjected to insufficient grinding in the grinding process, and the ground raw ores are large in volume.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides a hematite iron concentrate powder ore dressing device, includes the organism, the inside of organism is provided with the refining plant who rubs and screen many times to the crude ore, the inside of organism is provided with the grinder who grinds the crude ore and clean dust, one side of organism is provided with the feeding pipe, the inside of organism is provided with the dome, the inside of dome is provided with the crushing pole, one side fixedly connected with conveyer pipe of dome, the inner wall of dome is close to conveyer pipe one side and is provided with the filter screen, the inside of organism is provided with the main motor, the output fixedly connected with belt of main motor, the belt is connected with the crushing pole, the inside of organism is provided with the second fan, the output and the dome of second fan pass through the return bend and are connected, the inside of organism is provided with the storage chamber.
The effects achieved by the components are as follows: through setting up refining device for in the raw ore drops into the material pipe and gets into the dome, the main motor drives the crushing pole through the belt at this moment and smashes the raw ore at the inside rotation of dome, make the second fan blow to the dome inside through the return bend, make wind-force blow the raw ore after smashing to the filter screen surface and filter by the filter screen, make partial raw ore pass through filter screen and conveyer pipe fall in refining device, smash and screen many times the button by refining device, improve the crushing precision of raw ore, reduce the circumstances of the great reduction grinding effect of partial raw ore volume.
Preferably, the refining device comprises a first storage tank, the first storage tank is fixedly connected with the inner wall of a machine body through a connecting block, one side of the first storage tank is fixedly connected with a first pipeline, the inner wall of the first storage tank is fixedly connected with an arc screen, one side of the arc screen is fixedly connected with a crushing barrel, the surfaces of the crushing barrels are symmetrically and rotationally connected with two supporting rods, one side of each supporting rod is fixedly connected with a sliding block, the inner wall of the first storage tank is symmetrically provided with two sliding grooves, the two sliding blocks are respectively arranged inside the two sliding grooves, a first spring is fixedly connected between the supporting rods, one side of the first storage tank is fixedly connected with an L-shaped rod, one side of the L-shaped rod is fixedly connected with a shell, the inner wall of the shell is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a gear, the inner wall of the shell is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a winding rod, the surface of the winding rod is wound with a rope, one end of the rope is symmetrically provided with two sliding grooves, the sliding grooves are respectively arranged on the inner surfaces of the first round pipe is fixedly connected with a plurality of round pipes, the first round pipe is fixedly connected with a plurality of round hole scrapers, the round hole surfaces are fixedly connected with a round hole, a round hole is fixedly connected with a round hole is formed in the round hole, the round hole is fixedly connected with a round hole is formed in the round hole, and the round hole is fixedly connected with a round hole, the round hole is meshed with a round hole is formed inside the round hole, one side fixedly connected with second spring of push rod, the other end and the casing fixed connection of second spring, the second spring cover is established on first round bar surface and is located inside the first pipe.
The effects achieved by the components are as follows: through setting up refining plant, make the former ore fall on sieve bend surface and first stock chest through the conveyer pipe, this moment first motor drives the gear rotation, make the gear drive the toothed ring rotate, make the toothed ring drive first pipe rotate in first round hole inside, make first pipe drive a plurality of scraping bars laminating sieve bend surface rotation, make first pipe drive a plurality of grinding bars rotate in the crushed aggregates section of thick bamboo inside, simultaneously the second motor drives the reel pole bidirectional rotation, make the reel pole receive and release the rope, under the reaction force of second spring, make the rope drive first round bar reciprocate, make first round bar drive the push rod reciprocate, make the push rod promote the crushed aggregates section of thick bamboo to reciprocate, make the curved sieve surface great volume former ore enter into the crushed aggregates section of thick bamboo and grind by a plurality of grinding bars when the curved sieve is concave down moved, simultaneously, the crushing cylinder is pressed down to drive the two supporting rods to move, so that the two supporting rods drive the two sliding blocks to reversely move in the two sliding grooves, the two supporting rods drive the first spring to expand, when the push rod is reset, the first spring is contracted to drive the two supporting rods to push the crushing cylinder to move upwards, the crushing cylinder drives the arc screen to move upwards, the arc screen is enabled to rapidly upwards bulge the crushed raw ore in the crushing cylinder to pop out and fall on the surface of the arc screen, the crushed raw ore is pushed on the surface of the arc screen by the scraping rod to screen, the raw ore can be crushed and screened for a plurality of times in the first storage tank before being ground, the conditions that part of raw ore with larger volume is caused by insufficient grinding after the raw ore is firstly ground, larger raw ore particles are generated by grinding, and the grinding efficiency of the raw ore is affected are reduced, the grinding and screening efficiency of the raw ore is improved.
Preferably, the inner side of the L-shaped rod is fixedly connected with a stabilizing rod, the surface of the stabilizing rod is rectangular, and the stabilizing rod is fixed at an angle.
The effects achieved by the components are as follows: through setting up firm pole for firm pole can carry out auxiliary stay to L type pole, improves the supporting stability of L type pole to the casing, takes place the condition of rocking when reducing L type pole to the casing support.
Preferably, the inner wall of the through hole of the shell is rotationally connected with a turning plate, one side of the turning plate is fixedly connected with a baffle plate, and the surface of the baffle plate is attached to the surface of the shell.
The effects achieved by the components are as follows: through setting up board and breast board for but personnel manual movement breast board drives turns over the board and rotates, makes turn over board rotatable to suitable position and releases the cover and the protection to the through-hole department on the casing, makes the inside first motor of personnel's accessible through-hole on the casing and second motor maintain and change, has improved personnel's later maintenance first motor and second motor's convenience.
Preferably, the inner wall fixedly connected with support of casing, the surface and the rope laminating of support, the one side that the support is close to the rope fixedly connected with concave type piece, the rope sets up inside concave type piece.
The effects achieved by the components are as follows: through setting up the support for the support can carry out spacingly to the rope of removal in-process, makes the rope can be in the first round bar of vertical direction pulling and reciprocates, reduces the rope and appears when driving first round bar and remove with first motor and the circumstances of second motor friction, has improved the stability of rope pulling first round bar.
Preferably, a bearing is fixedly connected to the surface of one side, close to the shell, of the first circular tube, two straight rods are fixedly connected to the outer side ring of the bearing, and the two straight rods are fixedly connected with the first storage groove.
The effects achieved by the components are as follows: through setting up bearing and straight-bar for the straight-bar can support the bearing, makes the bearing can support first pipe auxiliary stay, makes first pipe more stable in rotation and use, reduces the condition that appears rocking when first pipe drives a plurality of scrapes pole and a plurality of pole of mincing rotation.
Preferably, a rubber sleeve is fixedly connected between the two supporting rods, and the rubber sleeve is sleeved on the surface of the first spring.
The effects achieved by the components are as follows: through setting up the rubber sleeve for the rubber sleeve can overlap and establish and intercept the former ore deposit that falls from the shale shaker on first spring surface, has reduced the former ore deposit and has fallen into the inside condition that causes first spring unable to carry out the removal that resets of first spring, has improved the stability of first spring in flexible removal in-process.
Preferably, the grinder includes top cap and second stock chest, the top cap passes through connecting block and organism inner wall fixed connection, one side fixedly connected with connecting rod of top cap, one side fixedly connected with third motor of connecting rod, the output fixedly connected with second pipe of third motor, the one end fixedly connected with double-deck arc cover of second pipe, a plurality of second round holes have been seted up to the inlayer of double-deck arc cover, a plurality of third round holes have been seted up to the skin of double-deck arc cover, a plurality of the equal sliding connection of inner wall of second round hole has a plurality of second round bars, a plurality of the equal fixedly connected with grinding piece of one end of second round bar, a plurality of the second round bars are located a plurality of third round holes respectively, a plurality of one side of second round bar is fixedly connected with third spring, a plurality of the other end of third spring all with the inlayer fixed connection of double-deck arc cover, the double-deck arc cover sets up inside the second stock chest, the second stock chest is through with inner wall fixed connection, a plurality of second side pipeline is equipped with the second pipeline, second pipeline is equipped with the first pipeline inside the second stock chest.
The effects achieved by the components are as follows: through setting up grinder for through the inside the crude ore of second storage tank that falls into through first pipeline after refining device smashes and sieves, make the third motor drive the second pipe and rotate, make the second pipe drive double-deck arc cover and rotate, make double-deck arc cover drive a plurality of second round bars at second round hole and the inside left and right sides removal of second round hole at pivoted in-process, make a plurality of second round bars drive a plurality of abrasive segments and remove, make a plurality of abrasive segments laminating second storage tank inner wall grind inside crude ore, make a plurality of abrasive segments can strike repeatedly the crude ore and polish, improve the polishing efficiency to the crude ore.
Preferably, one side fixedly connected with first tuber pipe of top cap, the one end fixedly connected with box of first tuber pipe, the inside of box is equipped with the filter plate, one side fixedly connected with second tuber pipe of first tuber pipe is kept away from to the box, the one end of second tuber pipe is equipped with the air pump.
The effects achieved by the components are as follows: through setting up first tuber pipe, second tuber pipe and air pump for the air pump accessible second tuber pipe and first tuber pipe will polish the dust that the former ore deposit produced and inhale in the box through the top cap, and filter through the filter plate of box inside, have reduced the condition that a plurality of grinding pieces appear more dust when grinding the former ore deposit.
Preferably, one side of the air pump away from the second air pipe is fixedly connected with a third air pipe, one end of the third air pipe is fixedly connected with a hollow ring, an auxiliary groove is formed in the surface of the second circular pipe, a plurality of air inlet holes are formed in the inner wall of the auxiliary groove, and the inner wall of the hollow ring is rotationally connected with the inner wall of the auxiliary groove.
The effects achieved by the components are as follows: through setting up third tuber pipe and hollow ring for air pump accessible third tuber pipe is to the inside injection gas of hollow ring, makes the gas get into inside the second pipe through a plurality of fresh air inlet, makes the gas get into inside the double-deck arc cover through the second pipe and blow out through a plurality of third round holes, makes the dust that produces when grinding the piece grinds the crude ore can be absorbed in the top cap by gas blowing, has improved the absorption and the treatment effect to producing the dust when grinding.
In summary, the beneficial effects of the invention are as follows:
through setting up refining device for the raw ore can smash and screen many times in first stock chest inside before grinding, reduced the raw ore and ground the back and not fully appear partial volume great raw ore and lead to the fact grinding time long and grind the great raw ore particle of appearance, influence the circumstances of raw ore grinding efficiency, improved grinding and screening efficiency to the raw ore.
Through setting up grinder for through the inside the crude mineral accessible first pipeline of refining plant smashing and screening falls into the second stock chest, rotate the crude mineral to the inside second stock chest by a plurality of abrasive segments and grind repeatedly, the dust that will produce simultaneously at the grinding in-process is inhaled inside the box by the filter plate interception filtration through air pump and top cap, has improved the grinding efficiency to the crude mineral and to the convenience of grinding in-process production dust treatment.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic perspective view of a curved screen of the present invention;
FIG. 4 is a cross-sectional view of a first reservoir of the present invention;
FIG. 5 is a cross-sectional view of the housing of the present invention;
FIG. 6 is a schematic perspective view of a putter in accordance with the present invention;
FIG. 7 is a schematic perspective view of a doctor blade of the present invention;
FIG. 8 is a schematic perspective view of a second storage tank of the present invention;
FIG. 9 is a schematic perspective view of a double layer arcuate cover of the present invention;
FIG. 10 is an enlarged view of the partial structure of FIG. 9 in accordance with the present invention;
FIG. 11 is a cross-sectional view of a double layer arcuate cover of the present invention.
Reference numerals illustrate:
1. a body; 2. a refining device; 21. a first pipe; 22. a first storage tank; 23. an arc screen; 24. a crushing cylinder; 25. a brace rod; 26. a slide block; 27. a chute; 28. a first spring; 29. a rubber sleeve; 210. an L-shaped rod; 211. a stabilizing rod; 212. a housing; 213. turning plate; 214. a breast board; 215. a first motor; 216. a gear; 217. a second motor; 218. a winding rod; 219. a rope; 220. a first round bar; 221. a toothed ring; 222. a bracket; 223. a first round tube; 224. a scraping rod; 225. mincing the rod; 226. a bearing; 227. a straight rod; 228. a push rod; 229. a rubber block; 230. a second spring; 231. a first round hole; 3. a grinding device; 31. a top cover; 32. a connecting rod; 33. a third motor; 34. a second round tube; 35. a double-layer arc-shaped cover; 36. a second round bar; 37. grinding the blocks; 38. a first air duct; 39. a case; 310. a filter plate; 311. a second air duct; 312. an air pump; 313. a third air duct; 314. a hollow ring; 315. an auxiliary groove; 316. an air inlet hole; 317. a second round hole; 318. a third round hole; 319. a third spring; 320. a second storage tank; 321. a second pipe; 322. a first fan; 323. an electric valve; 4. a feeding pipe; 5. a dome; 6. crushing the rod; 7. a filter screen; 8. a main motor; 9. a belt; 10. a second fan; 11. a delivery tube; 12. and a storage chamber.
Detailed Description
Referring to fig. 1 to 7, this embodiment discloses a hematite iron concentrate powder ore dressing device, including organism 1, the inside of organism 1 is provided with the refining plant 2 that rubs and screen raw ore many times, the inside of organism 1 is provided with the grinder 3 that grinds raw ore and clean dust, one side of organism 1 is provided with the material throwing pipe 4, the inside of organism 1 is provided with dome 5, the inside of dome 5 is provided with crushing rod 6, one side fixedly connected with conveyer pipe 11 of dome 5, the inner wall of dome 5 is close to conveyer pipe 11 one side and is provided with filter screen 7, the inside of organism 1 is provided with main motor 8, the output fixedly connected with belt 9 of main motor 8, belt 9 is connected with crushing rod 6, the inside of organism 1 is provided with second fan 10, the output of second fan 10 passes through elbow connection with dome 5, the inside of organism 1 is provided with storage chamber 12, through setting up refining plant 2 for raw ore throw in dome 5, main motor 8 passes through belt 9 drive crushing rod 6 and carries out crushing filter screen 7 in dome 5 inside rotation, make the filter screen 7 more inside the filter screen 7 through the filter screen that the filter screen is worn out to the mill by the filter screen 2 to the filter screen that the filter screen is more than the time, the inside of the filter screen is reduced by the filter screen 2, the filter screen is made to the filter screen is more than the filter screen 7, the inside the grinding device is reduced to the surface of the grinding device is more than the filter screen is made.
Referring to fig. 3-7, this embodiment discloses a refining device 2 comprising a first storage tank 22, the first storage tank 22 is fixedly connected with the inner wall of a machine body 1 through a connecting block, one side of the first storage tank 22 is fixedly connected with a first pipeline 21, the inner wall of the first storage tank 22 is fixedly connected with a curved screen 23, one side of the curved screen 23 is fixedly connected with a crushed material barrel 24, two supporting rods 25 are symmetrically and rotatably connected with the surface of the crushed material barrel 24, one sides of the two supporting rods 25 are fixedly connected with sliding blocks 26, two sliding grooves 27 are symmetrically arranged on the inner wall of the first storage tank 22, the two sliding blocks 26 are respectively arranged in the two sliding grooves 27, a first spring 28 is fixedly connected between the two supporting rods 25, one side of the first storage tank 22 is fixedly connected with an L-shaped rod 210, one side of the L-shaped rod 210 is fixedly connected with a shell 212, the inner wall of the shell 212 is fixedly connected with a first motor 215, the output end of the first motor 215 is fixedly connected with a gear 216, the inner wall of the shell 212 is fixedly connected with a second motor 217, the output end of the second motor 217 is fixedly connected with a winding rod 218, the surface of the winding rod 218 is wound with a rope 219, one end of the rope 219 is fixedly connected with a first round rod 220, one side of the first round rod 220 is fixedly connected with a push rod 228, one side of the shell 212 is provided with a first round hole 231, the inner wall of the first round hole 231 is rotationally connected with a first round tube 223, one end of the first round tube 223 is fixedly connected with a toothed ring 221, the toothed ring 221 is arranged inside the shell 212, the toothed ring 221 is meshed with the gear 216, the surface of the first round tube 223 is fixedly connected with a plurality of mincing rods 225, the first round rod 220 and the plurality of mincing rods 225 are arranged inside the particle tube 24, the surface of the push rod 228 is in sliding connection with the inner wall of the first round tube 223, the surface of the first round tube 223 is fixedly connected with a plurality of scraping rods 224, the surfaces of the scraping rods 224 are all jointed with the surface of the arc screen 23, one side of the push rod 228 is fixedly connected with a second spring 230, the other end of the second spring 230 is fixedly connected with the shell 212, the second spring 230 is sleeved on the surface of the first round rod 220 and is positioned in the first round tube 223, by arranging the refining device 2, raw ore falls on the surface of the arc screen 23 and the first storage tank 22 through the conveying pipe 11, at the moment, the first motor 215 drives the gear 216 to rotate, the gear 216 drives the toothed ring 221 to rotate, the toothed ring 221 drives the first round tube 223 to rotate in the first round hole 231, the first round tube 223 drives the scraping rods 224 to joint with the surface of the arc screen 23 to rotate, the first round tube 223 drives the mincing rods 225 to rotate in the particle tube 24, the second motor 217 drives the coiling rods 218 to bidirectionally rotate, the coiling rods 218 receive and release the ropes 219, under the reaction force of the second spring 230, the rope 219 drives the first round rod 220 to move up and down, the first round rod 220 drives the push rod 228 to move up and down, the push rod 228 pushes the crushed material cylinder 24 to move up and down, the crushed material cylinder 24 drives the arc screen 23 to move concavely and concavely, the raw ore with larger surface of the arc screen 23 enters the crushed material cylinder 24 to be crushed by a plurality of crushing rods 225 when the arc screen 23 moves concavely, simultaneously the crushed material cylinder 24 pushes down to drive the two supporting rods 25 to move, the two supporting rods 25 drive the two sliding blocks 26 to move reversely in the two sliding grooves 27, the two supporting rods 25 drive the first spring 28 to expand, when the push rod 228 is reset, the first spring 28 contracts to drive the two supporting rods 25 to push the crushed material cylinder 24 to move upwards, the crushed material cylinder 24 drives the arc screen 23 to move convexly upwards, make the arc screen 23 quick epirelief pop out the inside kibbling crude ore of crushed aggregates section of thick bamboo 24 and fall to the arc screen 23 surface through scraping rod 224 promote at the arc screen 23 surface and sieve for the crude ore can smash and screen many times in first storage tank 22 inside before grinding, reduced the crude ore and smashed the back and smashed the great crude ore of partial volume and cause grinding time to be long and the grinding to appear great crude ore granule for the first time, influence the circumstances of crude ore grinding efficiency, improved the grinding and screening efficiency to the crude ore.
Referring to fig. 3-7, this embodiment discloses that the inboard fixedly connected with stabilizer bar 211 of L-shaped pole 210, stabilizer bar 211's surface is rectangle, stabilizer bar 211 is 45 angle fixed, through setting up stabilizer bar 211, make stabilizer bar 211 can carry out auxiliary stay to L-shaped pole 210, improve the support stability of L-shaped pole 210 to casing 212, reduce the condition that takes place to rock when L-shaped pole 210 supports casing 212, the through-hole department inner wall rotation of casing 212 is connected with flap 213, one side fixedly connected with breast board 214 of flap 213, the surface of breast board 214 is laminated with the surface of casing 212, through setting up flap 213 and breast board 214, make personnel can manually move breast board 214 and drive flap 213 and rotate, make flap 213 rotatable to suitable position release the cover and the protection of through-hole department on casing 212, make personnel's accessible through-hole on casing 212 maintain and change first motor 215 and second motor 217 inside casing 212, the convenience of personnel's later maintenance first motor 215 and second motor 217 has been improved, the inner wall fixedly connected with flap 213, the surface of flap 213 is laminated with the surface of rope 219, the concave support 222 is close to one side of rope 219, can be in the recess 219 is in the condition that the rope 219 is in the recess 219 is in the groove 219, the direction is in the rope 219 is drawn down, the one side is reached in the rope 219 is drawn down, and is set up to the rope 219 is in the direction is in the condition is in the groove 219 is in the rope 219, and can be in the rope 219 is in the condition of the groove 219 is in the rope 219, and can be in the rope 219 is in the one direction of the rope 219 is.
Referring to fig. 3-7, this embodiment discloses that a bearing 226 is fixedly connected with a side surface of a first circular tube 223, which is close to a housing 212, two straight rods 227 are fixedly connected with an outer ring of the bearing 226, the two straight rods 227 are fixedly connected with a first storage tank 22, through setting the bearing 226 and the straight rods 227, the straight rods 227 can support the bearing 226, the bearing 226 can support the first circular tube 223 in an auxiliary manner, the first circular tube 223 is enabled to be more stable in rotation and use, the condition that the first circular tube 223 shakes when the first circular tube 223 drives a plurality of scraping rods 224 and a plurality of mincing rods 225 to rotate is reduced, a rubber sleeve 29 is fixedly connected between the two supporting rods 25, the rubber sleeve 29 is sleeved on the surface of the first spring 28, and the rubber sleeve 29 can be sleeved on the surface of the first spring 28 through setting the rubber sleeve 29 to intercept the raw ore falling from the arc-shaped screen 23, so that the condition that the first spring 28 cannot reset and move due to the fact that the raw ore falls into the first spring 28 is reduced, and the stability of the first spring 28 in the telescopic movement process is improved.
Referring to fig. 8-11, this embodiment discloses a grinding device 3, which comprises a top cover 31 and a second storage tank 320, wherein the top cover 31 is fixedly connected with the inner wall of the machine body 1 through a connecting block, one side of the top cover 31 is fixedly connected with a connecting rod 32, one side of the connecting rod 32 is fixedly connected with a third motor 33, the output end of the third motor 33 is fixedly connected with a second round tube 34, one end of the second round tube 34 is fixedly connected with a double-layer arc cover 35, the inner layer of the double-layer arc cover 35 is provided with a plurality of second round holes 317, the outer layer of the double-layer arc cover 35 is provided with a plurality of third round holes 318, the inner walls of the plurality of second round holes 317 are all slidingly connected with a plurality of second round rods 36, one ends of the plurality of second round rods 36 are all fixedly connected with grinding blocks 37, the plurality of second round rods 36 are respectively positioned inside the plurality of third round holes 318, one sides of the plurality of second round rods 36 are all fixedly connected with third springs 319, the other ends of the third springs 319 are fixedly connected with the inner layer of the double-layer arc-shaped cover 35, the double-layer arc-shaped cover 35 is arranged inside the second storage tank 320, the second storage tank 320 is fixedly connected with the inner wall of the machine body 1 through a connecting block, one side of the second storage tank 320 is fixedly connected with a second pipeline 321, one end of the second pipeline 321 is arranged inside the storage chamber 12, one side of the second pipeline 321 is provided with a first fan 322, one side of the second pipeline 321 is provided with an electric valve 323, through arranging the grinding device 3, raw ores crushed and screened by the refining device 2 fall into the second storage tank 320 through the first pipeline 21, the third motor 33 drives the second circular pipe 34 to rotate, the second circular pipe 34 drives the double-layer arc-shaped cover 35 to rotate, the double-layer arc-shaped cover 35 drives the plurality of second circular rods 36 to move left and right in the second circular holes 317 and the second circular holes 317 in the rotating process, the plurality of second round bars 36 drive the plurality of grinding blocks 37 to move, so that the plurality of grinding blocks 37 are attached to the inner wall of the second storage tank 320 to grind the raw ore inside, the plurality of grinding blocks 37 can repeatedly knock and grind the raw ore, and the grinding efficiency of the raw ore is improved.
Referring to fig. 8-11, this embodiment discloses that a first air duct 38 is fixedly connected to one side of a top cover 31, one end of the first air duct 38 is fixedly connected to a box 39, a filter plate 310 is disposed in the box 39, one side of the box 39 away from the first air duct 38 is fixedly connected to a second air duct 311, one end of the second air duct 311 is provided with an air pump 312, by arranging the first air duct 38, the second air duct and the air pump 312, the air pump 312 can suck dust generated by grinding raw ore into the box 39 through the top cover 31 via the second air duct and the first air duct, and filter the dust via the filter plate 310 in the box 39, thereby reducing the occurrence of more dust when grinding the raw ore by a plurality of grinding blocks 37, one side of the air pump 312 away from the second air duct 311 is fixedly connected with a third air duct 313, one end fixedly connected with hollow ring 314 of third tuber pipe 313, auxiliary tank 315 has been seted up to the surface of second pipe 34, a plurality of fresh air inlets 316 have been seted up to the inner wall in auxiliary tank 315, the inner wall in hollow ring 314 rotates with the inner wall in auxiliary tank 315 to be connected, through setting up third tuber pipe 313 and hollow ring 314, make the inside injection gas of air pump 312 accessible third tuber pipe 313 to hollow ring 314, make the gas get into inside second pipe 34 through a plurality of fresh air inlets 316, make the gas get into inside double-deck arc cover 35 through second pipe 34 and blow out through a plurality of third round holes 318, make the dust that the piece 37 produced when grinding the former ore deposit can be blown into in the top cap 31 by gas and absorbed, the absorption and the treatment effect of dust when having improved the grinding.
The working principle is as follows: firstly, raw ore is thrown into a feeding pipe 4 and enters a round cover 5, at the moment, a main motor 8 drives a crushing rod 6 to rotate in the round cover 5 through a belt 9 to crush the raw ore, so that a second fan 10 blows air to the inside of the round cover 5 through a bent pipe, the crushed raw ore is blown to the surface of a filter screen 7 by wind power and filtered by the filter screen 7, part of the raw ore falls into a first storage tank 22 through the filter screen 7 and a conveying pipe 11, at the moment, a first motor 215 drives a gear 216 to rotate, so that the gear 216 drives a toothed ring 221 to rotate, the toothed ring 221 drives a first round pipe 223 to rotate in a first round hole 231, the first round pipe 223 drives a plurality of scraping rods 224 to rotate on the surface of an arc-shaped sieve 23, the first round pipe 223 drives a plurality of grinding rods 225 to rotate in a particle drum 24, meanwhile, the second motor 217 drives a wire winding rod 218 to rotate bidirectionally, so that the wire 219 is wound and unwound by the wire winding rod 218, under the reaction force of the second spring 230, the rope 219 drives the first round rod 220 to move up and down, the first round rod 220 drives the push rod 228 to move up and down, the push rod 228 pushes the crushed material cylinder 24 to move up and down, the crushed material cylinder 24 drives the arc screen 23 to move concavely and concavely, the raw ore with larger surface of the arc screen 23 enters the crushed material cylinder 24 to be crushed by a plurality of crushing rods 225 when the arc screen 23 moves concavely, simultaneously the crushed material cylinder 24 pushes down to drive the two supporting rods 25 to move, the two supporting rods 25 drive the two sliding blocks 26 to move reversely in the two sliding grooves 27, the two supporting rods 25 drive the first spring 28 to expand, when the push rod 228 is reset, the first spring 28 contracts to drive the two supporting rods 25 to push the crushed material cylinder 24 to move upwards, the crushed material cylinder 24 drives the arc screen 23 to move convexly upwards, the arc screen 23 is enabled to rapidly protrude upwards to eject and drop the crushed raw ore in the crushing barrel 24 onto the surface of the arc screen 23, the surface of the arc screen 23 is pushed to screen by the scraping rod 224, the crushing and screening of the raw ore in the first storage tank 22 are completed before the grinding is carried out, the crushed and screened raw ore enters the second storage tank 320 through the first pipeline 21 at this time, the third motor 33 drives the second circular pipe 34 to rotate, the second circular pipe 34 drives the double-layer arc cover 35 to rotate, the double-layer arc cover 35 drives the plurality of second circular rods 36 to move left and right in the second circular holes 317 and 317 in the rotating process, the plurality of second circular rods 36 drive the plurality of grinding blocks 37 to move, the plurality of grinding blocks 37 are attached to the inner wall of the second storage tank 320 to rotate, and the grinding of the raw ore in the interior is completed, simultaneously, the air pump 312 injects air into the third air pipe 313 so as to enter the hollow ring 314, the air enters the second circular pipe 34 through the hollow ring 314 and the air inlet holes 316, the air enters the double-layer arc-shaped cover 35 through the second circular pipe 34 and is blown out through the third circular holes 318, dust generated in the grinding process is blown up by the air and enters the top cover 31, the air pump 312 enters the box body 39 through the second air pipe 311 and the first air pipe 38, the dust in the top cover 31 is intercepted and filtered by the filter plate 310 in the box body 39, the dust removing effect in the grinding process is completed, the ground raw ore enters the second pipeline 321 through opening the electric valve 323, and the raw ore in the second pipeline 321 is blown into the storage chamber 12 by the second fan 10, so that the grinding, screening, grinding and dust removing of the raw ore are completed.
Claims (9)
1. The utility model provides a hematite iron concentrate powder ore dressing device, includes organism (1), its characterized in that: the refining device is characterized in that a refining device (2) for grinding and screening raw ores for many times is arranged in the machine body (1), a grinding device (3) for grinding and cleaning dust for the raw ores is arranged in the machine body (1), a feeding pipe (4) is arranged on one side of the machine body (1), a dome (5) is arranged in the machine body (1), a crushing rod (6) is arranged in the dome (5), a conveying pipe (11) is fixedly connected to one side of the dome (5), a filter screen (7) is arranged on one side, close to the conveying pipe (11), of the inner wall of the dome (5), a main motor (8) is arranged in the machine body (1), a belt (9) is fixedly connected to the output end of the main motor (8), the belt (9) is connected with the crushing rod (6), a second fan (10) is arranged in the machine body (1), and the output end of the second fan (10) is connected with the dome (5) through a material storage chamber (12) arranged in the machine body (1). The refining device (2) comprises a first storage tank (22), the first storage tank (22) is fixedly connected with the inner wall of a machine body (1) through a connecting block, one side of the first storage tank (22) is fixedly connected with a first pipeline (21), the inner wall of the first storage tank (22) is fixedly connected with an arc screen (23), one side of the arc screen (23) is fixedly connected with a crushing barrel (24), the surface of the crushing barrel (24) is symmetrically and rotationally connected with two supporting rods (25), one side of each supporting rod (25) is fixedly connected with a sliding block (26), the inner wall of the first storage tank (22) is symmetrically provided with two sliding grooves (27), two sliding blocks (26) are respectively arranged inside the two sliding grooves (27), a first spring (28) is fixedly connected between the two supporting rods (25), one side of the first storage tank (22) is fixedly connected with an L-shaped rod (210), one side of the L-shaped rod (210) is fixedly connected with a shell (212), one side of the shell (212) is symmetrically and rotationally connected with two supporting rods (25), one side of the shell (212) is fixedly connected with a motor (215), one end (215) of the motor (215) is fixedly connected with a first winding wire (218), the utility model discloses a spiral wire winding device, including spiral wire winding pole (218), the surface winding of spiral wire winding pole (218) has rope (219), the one end fixedly connected with first round bar (220) of rope (219), one side fixedly connected with push rod (228) of first round bar (220), first round hole (231) have been seted up to one side of casing (212), the inner wall of first round hole (231) rotates and is connected with first pipe (223), the one end fixedly connected with ring gear (221) of first pipe (223), ring gear (221) set up inside casing (212), ring gear (221) meshes with gear (216), the surface fixedly connected with of first pipe (223) a plurality of minced bars (225), first round bar (220) and a plurality of minced bars (225) set up inside crushed aggregates section of thick bamboo (24), the surface of push rod (228) and the inner wall sliding connection of first pipe (223), the surface fixedly connected with a plurality of scraped bars (224) of first pipe (223), a plurality of scraped bars (224) are all laminated with the surface of sieve (23) and second pipe (230) and arc-shaped spring (230) are connected with one side of second pipe (230), the second spring (230) is sleeved on the surface of the first round rod (220) and is positioned inside the first round tube (223).
2. The hematite and iron concentrate powder beneficiation device according to claim 1, wherein: the inner side of the L-shaped rod (210) is fixedly connected with a stabilizing rod (211), the surface of the stabilizing rod (211) is rectangular, and the stabilizing rod (211) is fixed at an angle of 45 degrees.
3. The hematite and iron concentrate powder beneficiation device according to claim 2, wherein: the inner wall of the through hole of the shell (212) is rotationally connected with a turning plate (213), one side of the turning plate (213) is fixedly connected with a baffle plate (214), and the surface of the baffle plate (214) is attached to the surface of the shell (212).
4. A hematite iron concentrate powder beneficiation plant as claimed in claim 3, wherein: the inner wall fixedly connected with support (222) of casing (212), the surface and the laminating of rope (219) of support (222), one side that support (222) is close to rope (219) fixedly connected with concave piece, rope (219) set up in concave piece inside.
5. The hematite and iron concentrate powder concentrating device according to claim 4, wherein: one side surface of the first circular tube (223) close to the shell (212) is fixedly connected with a bearing (226), an outer side ring of the bearing (226) is fixedly connected with two straight rods (227), and the two straight rods (227) are fixedly connected with the first storage groove (22).
6. The hematite and iron concentrate powder concentrating device according to claim 5, wherein: a rubber sleeve (29) is fixedly connected between the two supporting rods (25), and the rubber sleeve (29) is sleeved on the surface of the first spring (28).
7. The hematite and iron concentrate powder beneficiation device according to claim 1, wherein: the grinding device (3) comprises a top cover (31) and a second storage groove (320), the top cover (31) is fixedly connected with the inner wall of the machine body (1) through a connecting block, one side of the top cover (31) is fixedly connected with a connecting rod (32), one side of the connecting rod (32) is fixedly connected with a third motor (33), the output end of the third motor (33) is fixedly connected with a second circular tube (34), one end of the second circular tube (34) is fixedly connected with a double-layer arc cover (35), a plurality of second circular holes (317) are formed in the inner layer of the double-layer arc cover (35), a plurality of third circular holes (318) are formed in the outer layer of the double-layer arc cover (35), a plurality of second circular rods (36) are connected with the inner wall of the second circular holes (317) in a sliding mode, one ends of the second circular rods (36) are fixedly connected with grinding blocks (37) respectively, a plurality of second circular rods (36) are located inside the third circular holes (318), a plurality of second circular rods (319) are fixedly connected with the inner wall of the double-layer arc cover (320) through springs (320) in the double-layer arc cover (35), one side fixedly connected with second pipeline (321) of second stock chest (320), the one end setting of second pipeline (321) is inside stock chest (12), one side of second pipeline (321) is equipped with first fan (322), one side of second pipeline (321) is equipped with electric valve (323).
8. The hematite and iron concentrate powder concentrating device of claim 7, wherein: one side fixedly connected with first tuber pipe (38) of top cap (31), the one end fixedly connected with box (39) of first tuber pipe (38), the inside of box (39) is equipped with filter plate (310), one side fixedly connected with second tuber pipe (311) of first tuber pipe (38) is kept away from to box (39), the one end of second tuber pipe (311) is equipped with air pump (312).
9. The hematite and iron concentrate powder concentrating device of claim 8, wherein: one side that second tuber pipe (311) was kept away from to air pump (312) is fixedly connected with third tuber pipe (313), the one end fixedly connected with hollow ring (314) of third tuber pipe (313), auxiliary groove (315) have been seted up on the surface of second pipe (34), a plurality of fresh air inlets (316) have been seted up to the inner wall of auxiliary groove (315), the inner wall of hollow ring (314) is rotated with the inner wall of auxiliary groove (315) and is connected.
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| CN202311084200.5A CN117299317B (en) | 2023-08-28 | 2023-08-28 | Hematite iron concentrate powder ore dressing device |
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|---|---|---|---|
| CN202311084200.5A CN117299317B (en) | 2023-08-28 | 2023-08-28 | Hematite iron concentrate powder ore dressing device |
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| CN117299317B true CN117299317B (en) | 2024-03-26 |
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