CN216631164U - Realize reselecting high-efficient dewatering device that comprehensive recycle was synthesized to tailing - Google Patents
Realize reselecting high-efficient dewatering device that comprehensive recycle was synthesized to tailing Download PDFInfo
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- CN216631164U CN216631164U CN202123319217.3U CN202123319217U CN216631164U CN 216631164 U CN216631164 U CN 216631164U CN 202123319217 U CN202123319217 U CN 202123319217U CN 216631164 U CN216631164 U CN 216631164U
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
Abstract
The utility model discloses a high-efficiency dehydration device for realizing comprehensive recycling of gravity concentration tailings, which comprises a first thickener, a sand washing mechanism communicated with a sand settling port at the bottom of the first thickener, a second thickener communicated with the sand washing mechanism, a grading sand filtering device communicated with a sand settling port at the bottom of the second thickener, a third thickener communicated with the grading sand filtering device and a filter pressing device communicated with a sand settling port at the bottom of the third thickener, wherein the sand washing mechanism is communicated with a sand washing mechanism; by the mode, dry-type discharge of the gravity tailings is realized, so that the floor area of a tailing pond in the traditional wet discharge mode is obviously reduced, and the construction investment is saved; in addition, the dehydration of the tailings is realized, and meanwhile, the materials with coarser particle size fraction are recycled as building raw materials, so that the problems of river sand resource shortage and machine-made sand supply shortage are effectively solved, the recycling of the beneficiation wastewater is successfully realized, the comprehensive utilization of the tailings is realized, the production and operation cost is obviously reduced, and the overall economic benefit and environmental benefit of the mine are improved.
Description
Technical Field
The utility model relates to the technical field of mine ore dressing, in particular to a high-efficiency dewatering device for realizing comprehensive recycling of gravity tailings.
Background
According to the regulation of GB/T14684-2011, the sand is prepared by mechanical crushing and screening, and is called as machine-made sand, wherein the particles are rock, mine tailings or industrial waste residue particles with the particle size of less than 4.75mm and more than 0.075mm, but soft and weathered particles. In recent years, in order to enhance the management of river channel sand mining, the control method and related documents of river channel sand mining are successively provided in various provinces in China, river sand resources are in increasing shortage, and the development requirements of the construction industry are difficult to meet, so the demand of machine-made sand is increasing.
The gravity separation method is widely applied to the fields of ferrous metals, nonferrous metals and the like, and is a main method for sorting particularly for ores such as tin, tungsten, antimony, manganese and the like. In view of the fact that effective processing particle size of gravity separation equipment is generally thicker, for example, heavy medium ore dressing equipment can generally process particle size range larger than 2mm, jigging machine can generally process particle size range larger than 0.1mm, floating, shaking table, spiral chute and conical ore dressing machine can process particle size range larger than 0.074mm, and centrifugal ore dressing machine and belt chute can process particle size range larger than 0.01 mm. Therefore, most of the gravity tailings can meet the granularity requirement of the machine-made sand. Therefore, if the part of tailings can be recycled, the problem of insufficient supply of mechanism sand can be effectively relieved.
In addition, compared with the traditional wet tailing discharging mode, if the tailings can be discharged in a dry mode after being concentrated and dehydrated, the occupied area of a tailing pond can be remarkably reduced, and therefore construction investment is saved. Meanwhile, the wastewater formed in the dehydration process can be recycled, so that the method is economical and environment-friendly, and the overall economic benefit and environmental benefit of the mine are obviously improved.
Therefore, the efficient dewatering device capable of achieving comprehensive recycling of the gravity tailings is designed, and the significance is great.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide the gravity tailing dewatering device with the advantages of low investment, low energy consumption, high operation efficiency and good dewatering effect, so that the comprehensive utilization of gravity tailings is realized, and the economic and environmental benefits of mines are improved.
In order to achieve the purpose, the utility model provides the following technical scheme:
a high-efficiency dewatering device for realizing comprehensive recycling of gravity tailings comprises a first thickener, a sand washing mechanism communicated with a sand settling port at the bottom of the first thickener, a second thickener communicated with the sand washing mechanism, a grading sand filtering device communicated with the sand settling port at the bottom of the second thickener, a third thickener communicated with the grading sand filtering device and a filter pressing device communicated with the sand settling port at the bottom of the third thickener;
the grading sand filtering device comprises a grading device communicated with a sand settling port at the bottom of the second thickener and a dewatering and screening device communicated with a sand outlet end of the grading device.
As a further improvement of the utility model, the sand washing mechanism comprises a sand washing machine communicated with a sand setting port at the bottom of the first thickener and a first sand storage bin communicated with a discharge chute of the sand washing machine through a first rubber belt conveyor.
As a further improvement of the utility model, the overflow outlet of the washing tank of the sand washer is communicated with the second thickener.
As a further improvement of the utility model, the grading device comprises a first sand pump tank communicated with the sand setting port at the bottom of the second thickener and a cyclone group communicated with the first sand pump tank through a first slurry pump.
As a further improvement of the utility model, the dewatering and screening device comprises a dewatering screen, a second rubber belt conveyor for receiving materials on the dewatering screen, and a second sand storage bin connected to the tail end of the second rubber belt conveyor.
As a further improvement of the utility model, the bottom sand outlet end of the cyclone group is communicated with the dewatering screen.
As a further improvement of the utility model, the top overflow port of the cyclone group is communicated with the third thickener.
As a further improvement of the utility model, the undersize pulp output end of the dewatering screen is communicated with the third thickener.
As a further improvement of the utility model, the filter pressing device comprises a second sand pump pool communicated with the sand setting port at the bottom of the third thickener and a filter press communicated with the second sand pump pool through a second slurry pump.
As a further improvement of the utility model, the top overflow ports of the first thickener, the second thickener and the third thickener and the water outlet nozzle of the filter press are communicated with a tail water collecting tank.
The utility model has the beneficial effects that:
1. according to the efficient dewatering device for realizing comprehensive recycling of gravity tailings, the sand washing mechanism is arranged behind the thickener, so that the separation of coarse fraction materials larger than 0.6mm in the gravity tailings is realized; the cyclone group and the dewatering screen are matched and used, so that fine-grained materials of 0.074 mm-0.6 mm in the tailings are sorted; therefore, the recycling of materials larger than 0.074mm in the heavy tailings is realized, and the problems of river sand resource shortage and machine-made sand supply shortage are effectively relieved.
2. The efficient dewatering device for realizing the comprehensive recycling of the gravity concentration tailings successfully realizes the recycling of the beneficiation wastewater through the combined action of the thickener used for three times and the filter press, thereby obviously reducing the production and operation cost.
3. The efficient dehydration device for realizing the comprehensive recycling of the gravity tailings can obviously reduce the occupied area of a tailing pond in the traditional wet discharge mode and save the construction investment by concentrating and dehydrating the tailings and then discharging the tailings in a dry mode.
4. The efficient dehydration device for realizing the comprehensive recycling of the gravity tailings fully combines the characteristic of thicker grain size of the gravity tailings, utilizes reasonable flow setting and equipment type selection, recycles materials meeting the grain size requirement while dehydrating the tailings, improves the recycling efficiency, realizes the comprehensive utilization of the tailings, and improves the overall economic benefit and the environmental benefit of a mine.
Drawings
Fig. 1 is a schematic diagram of an efficient dewatering device for realizing comprehensive recycling of gravity tailings.
Fig. 2 is a process flow diagram of the efficient dewatering device for realizing comprehensive recycling of gravity tailings.
Reference numerals
100-realizing the efficient dehydration device for comprehensively recycling the gravity tailings; 10-a first thickener; 20-a sand washing mechanism; 21-a sand washer; 22-a first belt conveyor; 23-a first sand storage bin; 30-a second thickener; 411-first sand pump sump; 412-a first slurry pump; 413-a cyclone group; 42-a dewatering screening device; 421-a dewatering screen; 422-a second belt conveyor; 423-a second sand silo; 50-a third thickener; 60-a filter pressing device; 61-a second sand pump pond; 62-a second slurry pump; and (63) a filter press.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the aspects of the present invention are shown in the drawings, and other details not closely related to the present invention are omitted.
In addition, it is also to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 1 to 2, the present invention provides an efficient dewatering device 100 for realizing comprehensive recycling of gravity tailings, which includes a first thickener 10, a sand washing mechanism 20 communicated with a sand setting port at the bottom of the first thickener 10, a second thickener 30 communicated with the sand washing mechanism 20, a graded sand filtering device communicated with a sand setting port at the bottom of the second thickener 30, a third thickener 50 communicated with the graded sand filtering device, and a filter pressing device 60 communicated with a sand setting port at the bottom of the third thickener 50. With the arrangement, when gravity tailings (with the concentration of 10% -15% in a common situation) are fed into the dewatering device, the gravity tailings can be subjected to concentration for three times and separation for two times in the dewatering device, so that dry discharge of the tailings is realized, recycling of the tailings is also realized, and the overall economic benefit and environmental benefit of a mine are improved.
Specifically, the sand washing mechanism 20 comprises a sand washing machine 21 communicated with a sand setting opening at the bottom of the first thickener 10 and a first sand storage bin 23 communicated with a discharge chute of the sand washing machine 21 through a first rubber belt conveyor 22. According to the arrangement, gravity tailings are fed into the first thickener 10 and then are concentrated for the first time until the concentration of ore pulp is increased to about 40%, the gravity tailings are fed into the sand washer 21 through the sand settling port at the bottom, materials larger than 0.6mm are separated out from the sand washer 21 and are conveyed to the machine-made sand product pile of the first sand storage bin 23 through the first rubber belt conveyor 22 as qualified machine-made sand products to be stored, and therefore, the successful separation of coarse-grained materials larger than 0.6mm in the gravity tailings can be achieved.
Further, a washing tank overflow outlet of the sand washing machine 21 is communicated with the second thickener 30, and the grading device specifically comprises a first sand pump pool 411 communicated with a sand settling port at the bottom of the second thickener 30 and a cyclone group 413 communicated with the first sand pump pool 411 through a first slurry pump 412. The dewatering and screening device 42 includes a dewatering screen 421, a second belt conveyor 422 for receiving the material on the screen of the dewatering screen 421, and a second sand storage bin 423 connected to the end of the second belt conveyor 422. Wherein, the upper part of the dewatering screen 421 receives the bottom sand outlet end of the cyclone group 413. According to the arrangement, the concentration of the ore pulp overflowing from the overflow outlet of the washing tank of the sand washer 21 is increased to about 40% again when the ore pulp is stored in the first sand pump pool 411 after being concentrated for the second time by the second thickener 30, then the ore pulp is pumped to the cyclone group 413 for classification by the first slurry pump 412, the underflow obtained by the classification of the cyclone group is dehydrated by the dewatering screen 421 below to produce fine-grained materials with the particle size of 0.074 mm-0.6 mm, and the fine-grained materials are transported to the second sand storage bin 423 as qualified machine-made sand products by the second belt conveyor 422 to be stored in a machine-made sand product pile. Therefore, the successful separation of fine-grained materials with the particle size of 0.074 mm-0.6 mm in the heavy tailings can be realized, all the materials with the particle size of more than 0.074mm in the heavy tailings are recovered, and the materials are used as machine-made sand, so that the current situations of river sand resource shortage and insufficient machine-made sand supply can be effectively improved, and the waste resource recycling process for changing waste into valuables is realized.
The undersize pulp output end of the dewatering screen 421 is communicated with the third thickener 50, and the top overflow port of the cyclone group 413 is also communicated with the third thickener 50. In addition, the filter press device 60 includes a second sand pump tank 61 communicating with the sand settling port at the bottom of the third thickener 50 and a filter press 63 communicating with the second sand pump tank 61 through a second slurry pump 62. So set up, can unify the third time concentration after merging with the hierarchical overflow of swirler and dewatering screen subsieve pulp, and store the material after the concentration in second sand pump pond 61, the ore pulp concentration in second sand pump pond 61 improves to about 50% this moment, can carry out final filtration to pressure filter 63 through second sediment stuff pump 62 pump afterwards, the filter cake water content of straining this moment to cross, thereby be convenient for the car to transport it to the tailing storehouse and carry out the dry heap, can obviously reduce the area in tailing storehouse, save the construction investment.
In addition, the top overflow ports of the first thickener 10, the second thickener 30 and the third thickener 50 and the side water outlet nozzle of the filter press 63 are all communicated with the tail water collecting tank. Thereby realized no matter thickener overflow water or the filtrating homoenergetic of pressure filter 63 all can be unified to be collected to the tail water collecting pit in, the circulation is used for the production procedure to realize the reuse of ore dressing waste water, showing the production operation cost that reduces the enterprise.
In conclusion, the efficient dewatering device for realizing comprehensive recycling of gravity tailings disclosed by the utility model realizes separation of coarse fraction materials larger than 0.6mm in the gravity tailings by arranging the sand washing mechanism behind the thickener; the cyclone group and the dewatering screen are matched and used, so that fine-grained materials of 0.074 mm-0.6 mm in the tailings are sorted; thereby realizing the recycling of materials larger than 0.074mm in the heavy tailings and effectively solving the problems of river sand resource shortage and machine-made sand supply shortage; the recycling of the beneficiation wastewater is successfully realized by utilizing the thickener for three times and matching with the combined action of the filter press, so that the production and operation cost is remarkably reduced; the tailings are concentrated and dehydrated and then discharged in a dry mode, so that the occupied area of a tailing pond in a traditional wet discharge mode can be obviously reduced, and the construction investment is saved; in addition, the design process of the device fully combines the characteristic of reselecting the coarse size fraction of the tailings, reasonable flow setting and equipment type selection are utilized, materials meeting the granularity requirement are recovered while the tailings are dehydrated, the recovery efficiency is improved, the comprehensive utilization of the tailings is also realized, and the overall economic benefit and the environmental benefit of the mine are improved.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.
Claims (10)
1. The efficient dewatering device for realizing comprehensive recycling of gravity tailings is characterized by comprising a first thickener (10), a sand washing mechanism (20) communicated with a sand settling port at the bottom of the first thickener (10), a second thickener (30) communicated with the sand washing mechanism (20), a grading sand filtering device communicated with a sand settling port at the bottom of the second thickener (30), a third thickener (50) communicated with the grading sand filtering device and a filter pressing device (60) communicated with the sand settling port at the bottom of the third thickener (50);
the grading sand filtering device comprises a grading device communicated with a sand setting port at the bottom of the second thickener (30) and a dewatering and screening device (42) communicated with a sand outlet end of the grading device.
2. The efficient dewatering device for realizing comprehensive recycling of gravity tailings according to claim 1, wherein the efficient dewatering device comprises: the sand washing mechanism (20) comprises a sand washing machine (21) communicated with a sand setting opening at the bottom of the first thickener (10) and a first sand storage bin (23) communicated with a discharge chute of the sand washing machine (21) through a first rubber belt conveyor (22).
3. The efficient dewatering device for realizing comprehensive recycling of gravity tailings according to claim 2, wherein the efficient dewatering device comprises: and a washing tank overflow outlet of the sand washer (21) is communicated with the second thickener (30).
4. The efficient dewatering device for realizing comprehensive recycling of gravity tailings according to claim 1, wherein the efficient dewatering device comprises: the grading device comprises a first sand pump pool (411) communicated with a sand setting port at the bottom of the second thickener (30) and a cyclone group (413) communicated with the first sand pump pool (411) through a first slurry pump (412).
5. The efficient dewatering device for realizing comprehensive recycling of gravity tailings according to claim 4, wherein the efficient dewatering device comprises: the dewatering and screening device (42) comprises a dewatering screen (421), a second rubber belt conveyor (422) for receiving materials on the screen of the dewatering screen (421) and a second sand storage bin (423) connected to the tail end of the second rubber belt conveyor (422).
6. The efficient dewatering device for realizing comprehensive recycling of gravity tailings according to claim 5, wherein: and the sand outlet end at the bottom of the cyclone group (413) is communicated with the dewatering screen (421).
7. The efficient dewatering device for realizing comprehensive recycling of gravity tailings according to claim 6, wherein: the top overflow port of the cyclone group (413) is communicated with the third thickener (50).
8. The efficient dewatering device for realizing comprehensive recycling of gravity tailings according to claim 6, wherein: the undersize output end of the dewatering screen (421) is communicated with the third thickener (50).
9. The efficient dewatering device for realizing comprehensive recycling of gravity tailings according to claim 1, wherein the efficient dewatering device comprises: the filter pressing device (60) comprises a second sand pump pool (61) communicated with a sand setting port at the bottom of the third thickener (50) and a filter press (63) communicated with the second sand pump pool (61) through a second slurry pump (62).
10. The efficient dewatering device for realizing comprehensive recycling of gravity tailings according to claim 9, wherein: the top overflow ports of the first thickener (10), the second thickener (30) and the third thickener (50) and the water outlet nozzle of the filter press (63) are communicated with a tail water collecting pool.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123319217.3U CN216631164U (en) | 2021-12-27 | 2021-12-27 | Realize reselecting high-efficient dewatering device that comprehensive recycle was synthesized to tailing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123319217.3U CN216631164U (en) | 2021-12-27 | 2021-12-27 | Realize reselecting high-efficient dewatering device that comprehensive recycle was synthesized to tailing |
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| CN216631164U true CN216631164U (en) | 2022-05-31 |
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| CN202123319217.3U Active CN216631164U (en) | 2021-12-27 | 2021-12-27 | Realize reselecting high-efficient dewatering device that comprehensive recycle was synthesized to tailing |
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2021
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