CN105464701A - Super-capacity stable continuous filling system - Google Patents
Super-capacity stable continuous filling system Download PDFInfo
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- CN105464701A CN105464701A CN201510708032.1A CN201510708032A CN105464701A CN 105464701 A CN105464701 A CN 105464701A CN 201510708032 A CN201510708032 A CN 201510708032A CN 105464701 A CN105464701 A CN 105464701A
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- filling
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/06—Filling-up mechanically
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
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- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention discloses a super-capacity stable continuous filling system, wherein a tail mortar preparation system in the filling system adopts a deep cone thickener and a vertical sand silo to prepare high-concentration tail mortar in a cooperative manner, and specifically comprises the following steps: pumping the low-concentration tailing slurry to a deep cone thickener in a filling system through a slurry pump; the high-concentration tail mortar concentrated by the deep cone thickener is pumped to the vertical sand silo by a diaphragm pump to be stored and further concentrated; during filling, high-concentration tail mortar stored in the vertical sand silo is discharged from a sand discharging port after being metered and controlled, and is discharged into a stirring barrel through a pipeline; the cementing material is fed into the stirring barrel through a screw conveyor at the bottom of the cement bin according to the proportioning requirement of filling strength; the filling materials are fully stirred in the stirring barrel to prepare filling slurry meeting the requirements, and then filling is carried out. The sand silo specification and the number of the filling system are greatly reduced, the filling capacity of the system configuration is large, the operation is stable, and the large-flow stable continuous filling is realized.
Description
Technical field
The present invention relates to non-coal mine underground mining technologies field, particularly relate to a kind of super large ability steady and continuous filling system.
Background technology
Along with the sustainable development of Chinese national economy, increasing to the demand of metallic mineral resources, the production scale of metal mine is constantly expanded, and ultra-large type Underground Metallic Mines occurs successively in China.The domestic millions ultra-large type Underground Metallic Mines building has tens, and following ultra-large type Underground Metallic Mines will get more and more.For ultra-large type Underground Metallic Mines, consider by existing filling system ability, need filling system and the filling equipment enormous amount of construction, so numerous filling systems is also deposited, and investment is large, Ren Yuanduo, pipeline complicated layout, filling management difficulty is very big, does not mate with actual conditions pole, mine.
Therefore, for so large-scale underground mining mine, greatly single system Pulp preparation and conveying capacity must be improved, to greatly reduce filling system quantity, reduce investment outlay, streamlining management, ensure production capacity, in prior art, also lack ripe super large ability filling system technical scheme.
Summary of the invention
The object of this invention is to provide a kind of super large ability steady and continuous filling system, the sand storehouse specification of this filling system and high number reduce, and the stowage capacity of system configuration is large, stable, achieves the filling of large discharge steady and continuous.
A kind of super large ability steady and continuous filling system, the last mortar preparation system in described filling system adopts deep wimble thickener and vertical sand warehouse coordinate system for high concentration last mortar, and wherein, described deep wimble thickener plays inspissation, class Three's continuous concentration; Described vertical sand warehouse plays memory action, and two classes of fillings, are specially:
Low concentration tailings slurry is pumped into the deep wimble thickener in filling system through Pulp pump;
The high concentration last mortar that described deep wimble thickener concentrates adopts diaphragm pump to be pumped to the interior step of going forward side by side that stores of described vertical sand warehouse and concentrates;
When filling, the high concentration last mortar stored in described vertical sand warehouse is released by putting sand mouth after measure control, enters agitator by the road; The conveying worm of cementitious material bottom cement bin, measures feed by the proportioning demand of Strength of backfill in described agitator; Casting resin is fully stirred in described agitator, is prepared into the filling slurry meeted the requirements, and then carries out filling.
As seen from the above technical solution provided by the invention, the sand storehouse specification of this filling system and high number reduce, and the stowage capacity of system configuration is large, stable, achieves the filling of large discharge steady and continuous.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
The structural representation of the super large ability steady and continuous filling system that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is vertical sand warehouse continuous feed described in the embodiment of the present invention and the solution principle schematic diagram alternately putting sand.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on embodiments of the invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to protection scope of the present invention.
Below in conjunction with accompanying drawing, the embodiment of the present invention is described in further detail, the structural representation of the super large ability steady and continuous filling system that Fig. 1 provides for the embodiment of the present invention, described filling system is primarily of last mortar preparation system, Filling Station last mortar preparation system, cement supplying system, filling slurry stirring conveying system, the compositions such as filling water system and automation control system, core due to the present embodiment is last mortar preparation system, other system is conventional configuration, therefore here last mortar preparation system is stressed, last mortar preparation system in described filling system adopts deep wimble thickener and vertical sand warehouse coordinate system for high concentration last mortar, wherein, described deep wimble thickener plays inspissation, class Three's continuous concentration, described vertical sand warehouse plays memory action, and two classes of fillings, are specially:
Low concentration tailings slurry about about 20% concentration selecting factory to discharge is pumped into the deep wimble thickener in filling system through Pulp pump; While add mortar in deep wimble thickener, add flocculant, to improve the settling rate of mortar, reduce fine grained tailings content in overflow water.The overflow water that above-mentioned deep wimble thickener is discharged, in the back pool flow in Filling Station, is produced for Filling Station, and unnecessary overflow water selects factory's backwater pump house for selecting factory's reuse from flowing to.
The high concentration last mortar that described deep wimble thickener concentrates adopts diaphragm pump to be pumped to the interior step of going forward side by side that stores of described vertical sand warehouse and concentrates;
Cementitious material (cement) needed for filling is transported to Filling Station by bulk cement carrier, is delivered in cement bin with high-pressure blast.
When filling, the high concentration last mortar in described vertical sand warehouse is released by putting sand mouth after measure control, enters agitator by the road; The conveying worm of cementitious material bottom cement bin, measures feed by the ratio requirement of Strength of backfill to described agitator; Casting resin is fully stirred in agitator, is prepared into the filling slurry meeted the requirements, and then carries out filling.
In specific implementation, described vertical sand warehouse adopts Dynamic Access Technology, makes the high concentration last mortar stored in described vertical sand warehouse keeps compared with zonule low kinetic energy destabilization when not filling.Because traditional vertical sand warehouse is when sand is put in not filling, high concentration tailings in storehouse is in static compressive state, along with the prolongation of compression time, tailings easily hardens in storehouse, this puts sand to filling and produces significant impact, makes filling system be difficult to steady and continuous, by the Dynamic Access Technology of above-mentioned vertical sand warehouse, tailings just can be avoided to harden, it also avoid the disturbance on a large scale of tailings in storehouse simultaneously.
Specifically, the cone angle of described vertical sand warehouse is 70 ~ 72 °, and sand storehouse diameter is 8 ~ 10m, and storehouse cylinder is high is 20 ~ 22m;
Be equipped with 4 ~ 6 row high-pressure air hoses at storehouse base fabric, the diverse location on airduct digs 1mm diameter circular aperture;
When not filling, utilize described high-pressure air hose to adopt the high-pressure blast of 0.05 ~ 0.1MPa size to produce the disturbance of low kinetic energy among a small circle, prevent tailings in storehouse from hardening.
Described vertical sand warehouse adopts continuous feed further and alternately puts sand technology, because traditional vertical sand storehouse filling system generally adopts 1 by 1 standby system configuration, this causes sand storehouse Quantity huge, to this in order to when guaranteeing stowage capacity, significantly reduce vertical sand warehouse configuration quantity, the present embodiment have employed vertical sand warehouse continuous feed and alternately puts sand technology, specifically comprises:
If Filling Station is configured with 1,2,3 ... n, n+1 sand storehouse, according to stowage capacity, needs n sand storehouse to run filling simultaneously, before filling first, all sand storehouses is filled tailings and concentrates;
When first time filling, first adopt 1 ~ n sand storehouse to carry out filling, after sand off, carry out feed, successively feed is carried out to 1 ~ n sand storehouse, just before second time filling starts, the feed in n sand storehouse can be completed; Due to the preferential feed in 1 ~ n-1 sand storehouse, therefore it possesses enough concentration times and can complete charging and enrichment process, and n sand storehouse is due to last charging, need when completing charging to start second time filling, therefore lose the concentrated time, therefore, filling cannot be carried out in n sand storehouse.
To this, second time filling adopts 1 ~ n-1, filling is carried out in n+1 sand storehouse, and n sand storehouse is carried out for subsequent use;
After second time sand off, feed is carried out successively in 1 ~ n-1, n+1 sand storehouse, when third time, filling started, due to the preferential feed in 1 ~ n-1 sand storehouse, therefore it possesses enough concentration times and can complete charging and enrichment process, and n+1 sand storehouse is due to last charging, need when completing charging to start third time filling, therefore lose the concentrated time, therefore, filling cannot be carried out in n+1 sand storehouse;
To this, third time filling adopts 1 ~ n sand storehouse to carry out filling, and n+1 sand storehouse is carried out for subsequent use;
After third time sand off, successively feed is carried out to 1 ~ n sand storehouse, just before the 4th filling starts, the feed in n sand storehouse can be completed.Due to the preferential feed in 1 ~ n-1 sand storehouse, therefore it possesses enough concentration times and can complete charging and enrichment process, and n sand storehouse is due to last charging, has needed beginning the 4th filling when completing charging, therefore lose the concentrated time, therefore filling cannot be carried out in n sand storehouse;
To this, the 4th filling adopts 1 ~ n-1, filling is carried out in n+1 sand storehouse, and n sand storehouse is carried out for subsequent use;
Be used alternatingly by said n, n+1 sand storehouse, steady and continuous filling can be realized, simultaneously owing to adopting 1 cover sand storehouse for subsequent use, the configuration quantity of filling system is significantly reduced.
Be described in detail the structure of above-mentioned filling system and the course of work below in conjunction with concrete example, in this example, suppose that certain copper mine mining with stowing production capacity is 5,400,000 t/a, filling slurry amount is 5788m day by day
3/ d, filling operation system is every day 2 classes, and the actual loading time of per tour is 6h.Calculate by this, mine hour stowage capacity should reach 531m
3/ h.To this, design 4 cover filling system, 3 is standby with 1, and single cover filling stowage capacity is 180m
3/ h.
Filling system described in this example is primarily of compositions such as last mortar preparation system, Filling Station last mortar preparation system, cement supplying system, filling slurry stirring conveying system, filling water system and automation control systems.Core due to the present embodiment is last mortar preparation system, and other system is conventional configuration.Therefore, here emphasis is described last mortar preparation system: this last mortar preparation system is made up of deep wimble thickener and vertical sand warehouse, the specification of deep wimble thickener is diameter 46m, the whole Tailing thickening task in mine can be met, except part delivery to Filling Station carries out except filling, remainder need be discharged into Tailings Dam; Filling Station configures 4 1300m
3vertical sand warehouse, 3 is standby with 1.
In specific implementation, above-mentioned vertical sand warehouse adopts Dynamic Access Technology.Vertical sand warehouse diameter 9m, volume 1300m
34 high-pressure blast pulping tubulations put by sand storehouse cone base fabric, every bar tubulation is 30 degree by perpendicular to tandem axis direction, with axis direction and is the circular hole that 150 degree of angles dig diameter 1mm respectively with axis direction, and for inject high pressure wind, each pitch of holes is 500mm.Pulping pipe is of a size of DN50.Pulping high-pressure blast pressure is 0.06MPa, in not stowing operation, carries out the disturbance of low kinetic energy among a small circle, prevents tailings from hardening.
This vertical sand warehouse adopts continuous feed and alternately puts sand technology, after the last mortar of 64% concentration that this copper mine deep wimble thickener is dense is pumped to Filling Station, need be concentrated into concentration 66% further, to meet technological requirement in Filling Station vertical sand warehouse.According to test, this mine tailing is concentrated into 66% by 64% and needs the 4h sedimentation time.Therefore, after the last mortar of 64% concentration that deep wimble thickener concentrates out is pumped to Filling Station, need concentrate 4h in vertical sand warehouse just can filling.In this example, be designed with 4 vertical sand warehouses, be respectively 1#, 2#, 3# and 4# vertical sand warehouse.Vertical sand warehouse adopts class Three for sand, two classes of filling operation systems.
Before first time filling, 1#, 2#, 3#, 4# sand storehouse in Filling Station is filled, after sand storehouse fills successively, natural subsidence concentrates, and to improve Filling density further, needs primary water to discharge simultaneously, during filling, filling is carried out and synchronous charging in 1#, 2#, 3# storehouse, and 4# storehouse is as use of getting the raw materials ready.During second time filling, 1#, 2# storehouse completes gets the raw materials ready, and 3# storehouse completes material feeding, when starting filling, carry out filling with 1#, 2#, 4# storehouse and synchronous charging, 3# storehouse is as getting the raw materials ready, 3#, 4# storehouse is used alternatingly, and guarantees the whole balance supplying sand and filling, and concrete feed quantity balance and workflow see attached list shown in 1.
Table 1 is for sand and filling operation arrangement
Note: first shift supplies sand separately, second and third class synchronously carries out for sand and filling.
The technological process of above-mentioned filling system is: select factory's tailings select factory through deep wimble thickener dense to 64% ~ 66% after be pumped to+4820 Filling Stations by diaphragm pump.The last mortar of 64% ~ 66% concentration stores and concentrates further in Filling Station vertical sand warehouse.Backfilling cement is transported to Filling Station by bulk cement carrier, is delivered in cement bin with high-pressure blast.During filling, the high concentration last mortar in vertical sand warehouse is released by putting sand mouth after measure control, and enter agitator by the road, the conveying worm of cement bottom cement bin, measures feed by the ratio requirement of Strength of backfill to agitator.Casting resin is fully stirred in agitator, after being prepared into the filling slurry meeted the requirements, carries out filling by filling borehole from flowing to underground stope.
In sum, the system that the embodiment of the present invention provides solves the difficult problem that traditional filling system stowage capacity is little, concentration is on the low side and system cloud gray model is unstable, the sand storehouse specification of this filling system and high number reduce, the stowage capacity of system configuration is large, stable, achieve the filling of large discharge steady and continuous, meet the technical need of ultra-large filling in mine exploitation, have wide popularization and application space, to realizing, China's ultra-large underground mine exploitation is significant.
The above; be only the present invention's preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (4)
1. a super large ability steady and continuous filling system, it is characterized in that, the last mortar preparation system in described filling system adopts deep wimble thickener and vertical sand warehouse coordinate system for high concentration last mortar, wherein, described deep wimble thickener plays inspissation, class Three's continuous concentration; Described vertical sand warehouse plays memory action, and two classes of fillings, are specially:
Low concentration tailings slurry is pumped into the deep wimble thickener in filling system through Pulp pump;
The high concentration last mortar that described deep wimble thickener concentrates adopts diaphragm pump to be pumped to the interior step of going forward side by side that stores of described vertical sand warehouse and concentrates;
When filling, the high concentration last mortar stored in described vertical sand warehouse is released by putting sand mouth after measure control, enters agitator by the road; The conveying worm of cementitious material bottom cement bin, measures feed by the proportioning demand of Strength of backfill in described agitator; Casting resin is fully stirred in described agitator, is prepared into the filling slurry meeted the requirements, and then carries out filling.
2. super large ability steady and continuous filling system according to claim 1, is characterized in that,
Described vertical sand warehouse adopts Dynamic Access Technology, makes the high concentration last mortar stored in described vertical sand warehouse keeps compared with zonule low kinetic energy destabilization when not filling.
3. super large ability steady and continuous filling system according to claim 2, is characterized in that,
The cone angle of described vertical sand warehouse is 70 ~ 72 °, and sand storehouse diameter is 8 ~ 10m, and storehouse cylinder is high is 20 ~ 22m;
Be equipped with 4 ~ 6 row high-pressure air hoses at storehouse base fabric, the diverse location on airduct digs 1mm diameter circular aperture;
When not filling, described high-pressure air hose is utilized to adopt the high-pressure blast of 0.05 ~ 0.1MPa size to produce the disturbance of low kinetic energy among a small circle.
4. according to claim 1-3 super large ability steady and continuous filling system described in one of them, it is characterized in that, described vertical sand warehouse adopts continuous feed further and alternately puts sand technology, specifically comprises:
If Filling Station is configured with 1,2,3 ... n, n+1 sand storehouse, according to stowage capacity, needs n sand storehouse to run filling simultaneously, before filling first, all sand storehouses is filled tailings and concentrates;
When first time filling, adopt 1 ~ n sand storehouse to carry out filling, after sand off, carry out feed, successively feed is carried out to 1 ~ n sand storehouse, just before second time filling starts, the feed in n sand storehouse can be completed;
Second time filling adopts 1 ~ n-1, filling is carried out in n+1 sand storehouse, and n sand storehouse is carried out for subsequent use;
After second time sand off, feed is carried out successively in 1 ~ n-1, n+1 sand storehouse;
Third time filling adopts 1 ~ n sand storehouse to carry out filling, and n+1 sand storehouse is carried out for subsequent use;
After third time sand off, successively feed is carried out to 1 ~ n sand storehouse, just before the 4th filling starts, the feed in n sand storehouse can be completed;
4th filling adopts 1 ~ n-1, filling is carried out in n+1 sand storehouse, and n sand storehouse is carried out for subsequent use;
Be used alternatingly by said n, n+1 sand storehouse, realize steady and continuous filling.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106065783A (en) * | 2016-07-20 | 2016-11-02 | 铜陵有色设计研究院 | Device for filling and using method thereof for extensive non-metal mine |
| CN112343652A (en) * | 2020-11-09 | 2021-02-09 | 北京华德创业环保设备有限公司 | Equipment and method for adjusting continuous concentration of low-concentration tailings and intermittent filling of high-concentration slurry |
| CN112643891A (en) * | 2020-12-21 | 2021-04-13 | 中铁建铜冠投资有限公司 | System and pulping method for pulping and filling dry mine tailings |
| CN113027520A (en) * | 2021-03-12 | 2021-06-25 | 福建兴万祥建设集团有限公司 | Mine tailing filling system and filling method thereof |
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| CN104847405A (en) * | 2015-03-26 | 2015-08-19 | 北京矿冶研究总院 | Vertical sand silo wind-water two-stage time-sharing wall-winding slurry making system and use method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106065783A (en) * | 2016-07-20 | 2016-11-02 | 铜陵有色设计研究院 | Device for filling and using method thereof for extensive non-metal mine |
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| CN112343652A (en) * | 2020-11-09 | 2021-02-09 | 北京华德创业环保设备有限公司 | Equipment and method for adjusting continuous concentration of low-concentration tailings and intermittent filling of high-concentration slurry |
| CN112643891A (en) * | 2020-12-21 | 2021-04-13 | 中铁建铜冠投资有限公司 | System and pulping method for pulping and filling dry mine tailings |
| CN113027520A (en) * | 2021-03-12 | 2021-06-25 | 福建兴万祥建设集团有限公司 | Mine tailing filling system and filling method thereof |
| CN113027520B (en) * | 2021-03-12 | 2023-08-11 | 福建兴万祥建设集团有限公司 | Mine tailing filling system and filling method thereof |
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| CN105464701B (en) | 2018-10-16 |
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