CN203540694U - High-pressure roller-grinded product wet-type preselecting system - Google Patents
High-pressure roller-grinded product wet-type preselecting system Download PDFInfo
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- CN203540694U CN203540694U CN201320720878.3U CN201320720878U CN203540694U CN 203540694 U CN203540694 U CN 203540694U CN 201320720878 U CN201320720878 U CN 201320720878U CN 203540694 U CN203540694 U CN 203540694U
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Abstract
The utility model belongs to the technical field of dressing plant preselecting and tailing discarding, and particularly relates to a high-pressure roller-grinded product wet-type preselecting system. The high-pressure roller-grinded product wet-type preselecting system comprises a high-pressure roller-grinding smashing system and is characterized in that the high-pressure roller-grinded product wet-type preselecting system comprises a high-pressure roller-grinded product screening system, a screened product conveying system and a fine-fraction screened product sorting system, the high-pressure roller-grinded product screening system, the screened product conveying system and the fine-fraction screened product sorting system are sequentially connected with the high-pressure roller-grinding smashing system, the high-pressure roller-grinded product screening system comprises a vibration screen feeding bin, an ore discharging chute below the bin, a vibration screen ore feeding belt conveyor and a wet-type screening vibration screen, the screened product conveying system comprises a belt conveyor for returning products on the screen, a pump pool below the screen, a conveying pump and a conveying pipeline, and the fine-fraction screened product sorting system comprises a multi-pipe ore pulp distributor, a set of two-pipe ore pulp distributors and a set of large-granularity wet-type magnetic separators. The high-pressure roller-grinded product wet-type preselecting system is reasonable in technology, saves energy, lowers consumption, is safe and reliable to use, high in operation efficiency and capable of effectively realizing preselecting and tailing discarding of high-pressure roller-grinded fine-fraction screened products, and obviously improves the sorting efficiency of the high-pressure roller-grinded fine-fraction screened products.
Description
Technical field
The utility model belongs to ore dressing plant tailings discarding by preconcentration technical field, especially relates to a kind of high pressure roller mill product wet type pre-selecting system.
Background technology
Because high pressure roller mill utilizes the extruding force of pair roller next broken, its crushed product is thinner with respect to the crushed product size of gyratory crusher, and particularly the content of fine fraction product has significant increase; In addition, for ore dressing plant, energy consumption mainly comes from ore grinding, and feed preparation unit size is thinner, and power consume is lower, and therefore, a lot of iron ore beneficiating factories utilize high pressure roller mill to replace cone crushing ore in small, broken bits, the thinner ore particle of granularity after fragmentation is carried out to ore grinding.For ore dressing plant, by adopting the technique of tailings discarding by preconcentration to get rid of a part of mine tailing before ore grinding, reduce into ore grinding amount, do like this number of units that can reduce grinding machine, reduce equipment investment and energy consumption.And through the iron ore maximum particle size of high pressure roller mill closed circuit crushing product generally at 3mm-6mm, therefore it is thrown in advance tail and has following technological difficulties: 1) tailings discarding by preconcentration is all generally that dry method magnetic pulley is thrown tail, granularity is thinner, particulate ore deposit is more similar to the movement locus of fine-grained gangue, the iron ore that is 3mm-6mm for maximum particle size is thrown tail by dry method causes the loss late of iron larger, uneconomical; 2) screening of the high pressure roller mill breaking ores product that is 3mm-6mm to granularity, screening efficiency is low, and circulating load is large, and the vibratory sieve needing is many; 3) iron ore that maximum particle size is 3mm-6mm under the sieve of high pressure roller mill crushed product is because its product granularity is large, and iron ore hardness is large again, large to conveyance conduit and delivery pump wearing and tearing, thereby operating efficiency is reduced.
Summary of the invention
It is reasonable that the purpose of this utility model is to provide a kind of technique, energy-saving and cost-reducing, safe and reliable, the high pressure roller mill product wet type pre-selecting system that operating efficiency is high, can realize high pressure roller mill fine fraction screening product tailings discarding by preconcentration, and high pressure roller mill fine fraction product screening efficiency is significantly improved.
The purpose of this utility model realizes by following technical proposals:
High pressure roller mill product wet type pre-selecting system of the present utility model, comprise high pressure roller mill crushing system, this high pressure roller mill crushing system is mainly comprised of ribbon conveyer, feed hopper, high-pressure roller mill, hopper and high pressure roller mill product ribbon conveyer under storage bin, high pressure roller mill storehouse, characterized by further comprising the high pressure roller mill product screening system being connected successively with described high pressure roller mill crushing system, screening product delivery system and fine fraction screening product sort system
Described high pressure roller mill product screening system comprises the vibratory sieve feed hopper being connected with described high pressure roller mill product ribbon conveyer, be located at ore discharge chute under the storehouse of this vibratory sieve feed hopper bottom, be located at the vibratory sieve of ore discharge chute bottom under this storehouse to ore deposit ribbon conveyer and wet screening vibratory sieve
Described screening product delivery system comprises that the oversize being connected with described wet screening vibratory sieve returns to ribbon conveyer, pump pond under the sieve being connected with described wet screening vibratory sieve, the delivery pump that the lower pump of sieve pond is connected therewith, the conveyance conduit that delivery pump is connected therewith, be located on this conveyance conduit and be positioned at the ore drawing electrically operated valve in described delivery pump exit, described oversize returns to ribbon conveyer and is connected with described storage bin
Described fine fraction screening product sorts system and comprises the multitube pulp distributer being connected with described conveyance conduit, be connected one group two pipe pulp distributer of multitube pulp distributer therewith, respectively one group of two one group of coarsegrain wet magnetic separator that pipe pulp distributer is connected therewith.
Giving in the case of ore deposit of described coarsegrain wet magnetic separator is provided with a spiral minute ore deposit device.
The maximum sieve fraction of described wet screening vibratory sieve is 3mm-6mm.
Described delivery pump is that transfer ore pulp maximum particle size is the abrasion resisting pump of 3mm-6mm.
Described conveyance conduit is rare earth alloy material, and its pipe lining is abrasive rubber pipe.
Advantage of the present utility model:
(1) high pressure roller mill product wet type pre-selecting system of the present utility model utilizes wet screening system to sieve high pressure roller mill fine fraction product, screening efficiency can reach more than 85%, greatly reduce the circulating load of high pressure roller mill, reduced the quantity of the vibratory sieve of high pressure roller mill, saved investment;
(2) high pressure roller mill product wet type pre-selecting system of the present utility model utilizes coarsegrain wet magnetic separator to carry out coarsegrain wet type pre-selecting to the 3mm-6mm product through high pressure roller mill closed circuit crushing, can dish out with respect to the mine tailing of mine-supplying quantity 30% left and right, greatly reduce the mine-supplying quantity of ore grinding, reduced the number of units of grinding machine, reduce equipment investment, also greatly reduced the energy consumption of ore grinding;
(3) giving in the case of ore deposit of every coarsegrain wet magnetic separator of high pressure roller mill product wet type pre-selecting system of the present utility model is provided with a spiral minute ore deposit device, by this spiral minute ore deposit device can be by the ore pulp feeding the length direction uniform distribution along drums for magnetic separation machine, thereby improve the unit disposal ability of coarsegrain wet magnetic separator, reduce the number of devices of coarsegrain wet magnetic separator, saved investment;
(4) high pressure roller mill product wet type pre-selecting system of the present utility model adopts wear-resisting delivery pump and the wear-resisting rare earth alloy pipeline of line with rubber to carry iron ore slurry, and operating rate is high, and maintenance is little, has solved iron ore slurry large to the wearing and tearing of conveyance conduit, the problem of difficulty of transportation;
(5) outlet of the wear-resisting delivery pump of high pressure roller mill product wet type pre-selecting system of the present utility model is provided with ore drawing electrically operated valve, in line clogging, can open valve discharges the silting ore deposit in pipeline, solve line clogging problem, improved system job rate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, further illustrate the specific embodiment of the present utility model.
As shown in Figure 1, high pressure roller mill product wet type pre-selecting system of the present utility model, comprise high pressure roller mill crushing system, this high pressure roller mill crushing system is mainly comprised of ribbon conveyer 2, feed hopper 3, high-pressure roller mill 4, hopper 5 and high pressure roller mill product ribbon conveyer 6 under storage bin 1, high pressure roller mill storehouse, characterized by further comprising the high pressure roller mill product screening system being connected successively with described high pressure roller mill crushing system, screening product delivery system and fine fraction screening product sort system
Described high pressure roller mill product screening system comprises the vibratory sieve feed hopper 7 being connected with described high pressure roller mill product ribbon conveyer 6, be located at ore discharge chute 8 under the storehouse of these vibratory sieve feed hopper 7 bottoms, be located at the vibratory sieve of ore discharge chute 8 bottoms under this storehouse to ore deposit ribbon conveyer 9 and wet screening vibratory sieve 10
Described screening product delivery system comprises that the oversize being connected with described wet screening vibratory sieve 10 returns to ribbon conveyer 11, pump pond 12 under the sieve being connected with described wet screening vibratory sieve 10, the delivery pump 13 that the lower pump of sieve pond 12 is connected therewith, the conveyance conduit 14 that delivery pump 13 is connected therewith, be located on this conveyance conduit 14 and be positioned at the ore drawing electrically operated valve 15 in described delivery pump 13 exits, described oversize returns to ribbon conveyer 11 and is connected with described storage bin 1
Described fine fraction screening product sorts system and comprises the multitube pulp distributer 16 being connected with described conveyance conduit 14, be connected one group two pipe pulp distributer 17 of multitube pulp distributer 16 therewith, respectively one group of two one group of coarsegrain wet magnetic separator 19 that pipe pulp distributer 17 is connected therewith.
Giving in the case of ore deposit of described coarsegrain wet magnetic separator 19 is provided with a spiral minute ore deposit device 18.
The maximum sieve fraction of described wet screening vibratory sieve 10 is 3mm-6mm.
The abrasion resisting pump that described delivery pump 13 is 3mm-6mm for transfer ore pulp maximum particle size.
Described conveyance conduit 14 is rare earth alloy material, and its pipe lining is abrasive rubber pipe.
The course of work of the present utility model is:
The ore providing from the storage bin 1 of high pressure roller mill feeds the feed hopper 3 of high pressure roller mill via ribbon conveyer 2 high pressure roller mill storehouse, feed again high-pressure roller mill 4, ore after fragmentation feeds high pressure roller mill product ribbon conveyer 6 via the hopper 5 under high-pressure roller mill 4, and is transported to vibratory sieve feed hopper 7.Ore after fragmentation feeds vibratory sieve to ore deposit ribbon conveyer 9 via discharge chute 8 under storehouse again, by vibratory sieve, to ore deposit ribbon conveyer 9, feeds wet screening vibratory sieve 10.Wet screening through wet screening vibratory sieve, oversize returns to via oversize the storage bin 1 formation closed cycle that ribbon conveyer 11 turns back to high pressure roller mill, undersize feeds the lower pump of sieve pond 12, via delivery pump 13 and conveyance conduit defeated 14, delivers to multitube pulp distributer 16.The maximum through-screen size of wet screening vibratory sieve 10 is 3mm-6mm herein, on sieve, moisture can be controlled at below 8%, oversize turns back in the storage bin 1 of high pressure roller mill and again carries out fragmentation, the lower fine fraction product of sieve is drained into the lower pump of sieve pond 12, by delivery pump 13, via pipeline, is given in multitube pulp distributer 16.Delivery pump 13 is that a high maximum particle size of carrying of operating rate is the abrasion resisting pump of 3mm-6mm, delivery side of pump pipe is provided with ore drawing electrically operated valve 15, in line clogging, can open valve the silting ore deposit in pipeline is discharged, solve line clogging problem, improve system job rate.Conveyance conduit 14 is rare earth alloy material, and its pipe lining is abrasive rubber pipe, more wear-resisting.Ore pulp feeds every two pipe pulp distributer 17 by 16 gravity flows of multitube pulp distributer, flow automatically again to every coarsegrain wet magnetic separator 19, via the spiral minute ore deposit device 18 of coarsegrain wet magnetic separator 19 inside can be by the ore pulp feeding the drum length direction uniform distribution along coarsegrain wet magnetic separator 19.Ore pulp finally obtains two kinds of products through sorting of coarsegrain wet magnetic separator 19, i.e. mine tailing and concentrate, and mine tailing is for throwing tail product, and concentrate enters next section of grinding operation.The utility model technique is reasonable, and energy-saving and cost-reducing, safe and reliable, operating efficiency is high, can realize high pressure roller mill fine fraction screening product tailings discarding by preconcentration, and high pressure roller mill fine fraction product screening efficiency is significantly improved.
Claims (5)
1. a high pressure roller mill product wet type pre-selecting system, comprise high pressure roller mill crushing system, this high pressure roller mill crushing system is mainly comprised of ribbon conveyer, feed hopper, high-pressure roller mill, hopper and high pressure roller mill product ribbon conveyer under storage bin, high pressure roller mill storehouse, characterized by further comprising the high pressure roller mill product screening system being connected successively with described high pressure roller mill crushing system, screening product delivery system and fine fraction screening product sort system
Described high pressure roller mill product screening system comprises the vibratory sieve feed hopper being connected with described high pressure roller mill product ribbon conveyer, be located at ore discharge chute under the storehouse of this vibratory sieve feed hopper bottom, be located at the vibratory sieve of ore discharge chute bottom under this storehouse to ore deposit ribbon conveyer and wet screening vibratory sieve
Described screening product delivery system comprises that the oversize being connected with described wet screening vibratory sieve returns to ribbon conveyer, pump pond under the sieve being connected with described wet screening vibratory sieve, the delivery pump that the lower pump of sieve pond is connected therewith, the conveyance conduit that delivery pump is connected therewith, be located on this conveyance conduit and be positioned at the ore drawing electrically operated valve in described delivery pump exit, described oversize returns to ribbon conveyer and is connected with described storage bin
Described fine fraction screening product sorts system and comprises the multitube pulp distributer being connected with described conveyance conduit, be connected one group two pipe pulp distributer of multitube pulp distributer therewith, respectively one group of two one group of coarsegrain wet magnetic separator that pipe pulp distributer is connected therewith.
2. high pressure roller mill product wet type pre-selecting system according to claim 1, it is characterized in that described coarsegrain wet magnetic separator to being provided with a spiral minute ore deposit device in the case of ore deposit.
3. high pressure roller mill product wet type pre-selecting system according to claim 1, is characterized in that the maximum sieve fraction of described wet screening vibratory sieve is 3mm-6mm.
4. high pressure roller mill product wet type pre-selecting system according to claim 1, is characterized in that described delivery pump is that transfer ore pulp maximum particle size is the abrasion resisting pump of 3mm-6mm.
5. high pressure roller mill product wet type pre-selecting system according to claim 1, is characterized in that described conveyance conduit is rare earth alloy material, and its pipe lining is abrasive rubber pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320720878.3U CN203540694U (en) | 2013-11-15 | 2013-11-15 | High-pressure roller-grinded product wet-type preselecting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320720878.3U CN203540694U (en) | 2013-11-15 | 2013-11-15 | High-pressure roller-grinded product wet-type preselecting system |
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| CN203540694U true CN203540694U (en) | 2014-04-16 |
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| CN201320720878.3U Expired - Fee Related CN203540694U (en) | 2013-11-15 | 2013-11-15 | High-pressure roller-grinded product wet-type preselecting system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103721839A (en) * | 2013-11-15 | 2014-04-16 | 中冶北方（大连）工程技术有限公司 | High pressure roller mill product wet type pre-selection system |
| CN104624346A (en) * | 2015-03-13 | 2015-05-20 | 中冶北方（大连）工程技术有限公司 | High-pressure roller grinding closed-circuit wet screening system |
| CN113058726A (en) * | 2021-03-26 | 2021-07-02 | 中冶北方（大连）工程技术有限公司 | System for improving screening closed-circuit operation rate of high-pressure roller mill |
-
2013
- 2013-11-15 CN CN201320720878.3U patent/CN203540694U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103721839A (en) * | 2013-11-15 | 2014-04-16 | 中冶北方（大连）工程技术有限公司 | High pressure roller mill product wet type pre-selection system |
| CN104624346A (en) * | 2015-03-13 | 2015-05-20 | 中冶北方（大连）工程技术有限公司 | High-pressure roller grinding closed-circuit wet screening system |
| CN104624346B (en) * | 2015-03-13 | 2017-06-27 | 中冶北方（大连）工程技术有限公司 | The closed circuit wet screening system of high pressure roller mill |
| CN113058726A (en) * | 2021-03-26 | 2021-07-02 | 中冶北方（大连）工程技术有限公司 | System for improving screening closed-circuit operation rate of high-pressure roller mill |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20201115 |