CN101353219A - Piling method for gully type dry red mud disposal and water drainage structure thereof - Google Patents
Piling method for gully type dry red mud disposal and water drainage structure thereof Download PDFInfo
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- CN101353219A CN101353219A CNA2007102011725A CN200710201172A CN101353219A CN 101353219 A CN101353219 A CN 101353219A CN A2007102011725 A CNA2007102011725 A CN A2007102011725A CN 200710201172 A CN200710201172 A CN 200710201172A CN 101353219 A CN101353219 A CN 101353219A
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Abstract
The invention discloses a piling-up method of ravine-typed dry process red mud yards and a draining structure thereof, flood-cutting channels are built around the boundary of the area planed for a ravine-typed dry process red mud yard, the flood-cutting channels are used for holding up the rain water out of the red mud piling-up area, and the problem that the amount of rain water afflux out of the present ravine-typed red mud yards is large is solved; a flood detention dam is arranged at the central part of a ravine-typed red mud yard, the flood detention dam divides the ravine-typed red mud yard into the two areas of front and rear, a flood discharging pipe is connected with the flood detention dam, in this way, when piling up red mud, the amount of rain water entering the front area can be reduced. Moreover, construction to the ravine-typed red mud yards can be carried out by stage according to the design of flood control dams, when the rear area is about to be used, seepage control membranes can be laid on the rear area of red mud yards, and the time that the seepage control membranes expose in the air can be reduced. And the front and rear areas use independent catchment pipes for draining water respectively, thus the reliability of draining system is improved; the flood discharging pipes used for discharging water in prophase can be taken as catchment pipes of the rear area when the rear area is put into service, and investment to draining pipes of yards is reduced.
Description
Technical field
The present invention relates to a kind of stacked arrangement and discharge structure thereof of dry method red mud storage yard, particularly a kind of stacked arrangement of gully type dry red mud disposal and discharge structure thereof belong to dry-method red mud disposal technology field.
Background technology
Red mud is the waste residue that produces in the alumina producing.Red mud is except that can fully utilizing on a small quantity, and each alumina producer all need be built special red mud dump and store up red mud.Storing up of red mud mainly contains dry method and wet method dual mode.It is generally acknowledged that the red mud slurry water ratio that enters the stockyard is being more than 47% that wet method, water ratio are lower than 47% and are dry method.General 3～the 5g/L of the attached alkali of red mud.So the pH value of wastewater from red mud is usually more than 12.Its situation of storing up of wet method stockyard is similar to reservoir, has phreatic line height, safety and the bigger shortcoming of environmental protection risk, is replaced by dry method red mud storage yard gradually.
Dry method red mud storage yard needs bigger airing area, and the red mud slurry carries out sedimentation, separation, drying and consolidation process in the stockyard, and isolated wastewater from red mud (buck) returns alumina producer and recycles, and red mud is the solid-state red mud dump that is deposited in.The site of dry method red mud storage yard according to landform, natural condition and the land resources situation of alumina producer periphery, can roughly be divided into gully type, sloping field type, flat type and basin type four classes.So-called gully type refers to that the site is long and narrow cheuch, long axis direction border height, and middle low shape, more common in the mountain area; In the alumina producer that adopts dry method to store up, comparatively common with the flat type stockyard, because the flat type site is satisfied the demand of dry method storage yard to the airing area easily, can reducing outside the venue again, rainwater imports the stockyard.The dry method of red mud is stored up technology and is at first grown up in Australian several flat types stockyard.First Pingguo, dry method red mud storage yard Guangxi alumina producer of China also adopts the flat type stockyard.
But for concrete alumina producer, be limited to plant area's periphery physical environment and land resources situation, sometimes not having the level land of enough areas can select for use, or though the level land is arranged but generally be basic farmland and can not take, have to select the site of the place of the suitable shapes such as gully type, sloping field type or basin type of area sometimes as dry method red mud storage yard.
The shape difference of dry method red mud storage yard site, storing up technology also has very big-difference.The stacked arrangement of flat type dry method red mud storage yard can not simply overlap and use on the gully type red mud dump.The flat type stockyard is after constructing a circle initial dam, with middle dam the stockyard is divided into some sub-districts, each sub-district all flattens and is high, the middle low shape in four sides, cloth tube is set around again in the sub-district, adopt the four sides cloth, rise synchronously around the operation process of middle draining, sub-district, construct sub-dam after piling with again and continue to store up.
Carry out the dry method of red mud in the gully type place and store up, can run into some new problems different with the flat type stockyard:
One, the water catchment area of rainwater is bigger outside the venue, and influence is banked up and is distinguished the drying and consolidating of red mud.
Its two, longer from the distance of mouth of a valley paddy tail, and have certain height difference, store up working life to the paddy tail from the mouth of a valley often more than 5～10 years, during this period, will have the anti seepage membrane of equivalent area to be exposed in the air and illumination under, there is catabiosis, the performance of anti seepage membrane is had certain disadvantageous effect.
Its three, drainage direction is single, generally is longer toward downstream draining and pipeline from the upstream, is difficult for remedying in case lose efficacy.
Summary of the invention
The objective of the invention is to, a kind of stacked arrangement and discharge structure thereof of gully type dry red mud disposal is provided; The present invention is directed to the characteristics in gully type place, be provided with to cut a Great Gulch and a regulating dam, two phase engineerings before and after the construction of gully type red mud dump is divided into so not only can reduce the catabiosis that the outside rainwater in red mud dump place imports red mud dump and reduction anti seepage membrane; And strengthened the reliability of water exhaust system and the initial stage construction investment of red mud dump, can overcome the deficiencies in the prior art.
Technical scheme of the present invention, a kind of stacked arrangement of gully type dry red mud disposal, it comprises adopts cheuch landform 1 to store up red mud, needs earlier selected ditch valley floor 1 shape is constructed as follows when adopting cheuch landform 1 to store up red mud:
A, elder generation stack the selected single hillside fields shape of cheuch landform 1 leveling for tilting from the cheuch Caudad ditch mouth of a valley that is used for doing red mud dump building of red mud zone all around in cheuch landform 1 again and cut a Great Gulch 12;
B, build back pool 2 and initial dam 3 in position, the ditch mouth of a valley;
C, build regulating dam 4 at the middle part of cheuch landform 1, connect the pipe 5 that drains off floodwaters on regulating dam 4, the other end of the pipe 5 that drains off floodwaters is connected with the arms of two band valves, the arm of two band valves respectively with cut a Great Gulch 12 and be connected with back pool 2;
D, at the ditch mouth of a valley between the cheuch tail collecting gutter 8 of excavation; Impervious barrier 10 is laid in zone between dam 3 and the regulating dam 4 in the early stage then, in the collecting gutter 8 between the regulating dam 4, put into the proparea header 9 that has the infiltration hole at the mouth of a valley, compartment connects drain well 13 on proparea header 9, and adds around proparea header 9 and bury sandstone.
E, laying sandstone in the zone between dam 3 and the regulating dam 4 in the early stage, formation sandstone drainage layer 11;
After finishing above-mentioned construction, open drain off floodwaters pipe 5 and the arm valve that cuts on the Great Gulch 12, close the arm valve on drain off floodwaters pipe 5 and the back pool 2, and successively store up red mud to the cheuch tail from initial dam 3 beginnings; When the red mud face height of successively storing up arrived at regulating dam 4 bottoms, beginning regulating dam 4 was to the back zone red mud dump construction in territory, cheuch tail region, and its construction Line hem is:
F, lay impervious barrier 10 to the red mud zone of storing up between the cheuch tail at regulating dam 4; In the collecting gutter 8 between the cheuch tail, put into the back zone header 14 that has the infiltration hole at regulating dam 4, and compartment connects drain well 13 on back zone header 14, around back zone header 14, add again and bury sandstone;
G, lay sandstone to storing up on the red mud zone between the cheuch tail, constitute sandstone drainage layer 11 at regulating dam 4;
H, back zone header 14 5 is connected with the pipe that drains off floodwaters, adjusts the valve with pipe 5 connecting branches that drain off floodwaters, the pipe 5 of drainning off floodwaters is connected with back pool 2.
When initial dam 3 beginning is successively stored up red mud, when the red mud face of storing up when equal with initial dam 3, on the red mud equal, build the sub-dam of one-level, when the sub-dam of storing up of red mud face and one-level is equal, on the red mud equal, build the sub-dam of secondary with the sub-dam of one-level with initial dam 3; The mode of building on three grades of sub-dams and the sub-dam of n level is identical with the mode of building on initial dam, the sub-dam of one-level and the sub-dam of secondary.
The height that compartment is connected the drain well 13 on proparea header 9 and the back zone header 14 is trailed landform from the ditch mouth of a valley to cheuch rising raises gradually, and the top of first drain well 13 is lower than 0.5～1 meter at initial dam 1 top, the top of second drain well 13 is lower than 0.5～1 meter in the sub-dam crest of one-level portion, the top of the 3rd drain well 13 is lower than 0.5～1 meter in the sub-dam crest of secondary portion, the top of the 4th drain well 13 is lower than 0.5～1 meter in three grades of sub-dam crest portions, the top of n-1 drain well 13 is lower than 0.5～1 meter in the sub-dam crest of n level portion, and, need carry out shutoff to these header 13 mouths of pipe when the red mud face height of storing up during near the mouth of pipe of header 13.
A kind of discharge structure of gully type dry red mud disposal, comprise the cheuch landform 1 that is used for stacking red mud, be provided with back pool 2 and initial dam 3 successively at the low end of cheuch landform 1 physical features, be used for stacking being provided with of red mud zone all around in cheuch landform 1 and cut a Great Gulch 12, be provided with regulating dam 4 in the middle, on regulating dam 4, be connected with the pipe 5 that drains off floodwaters, pipe 5 the other end that drains off floodwaters is divided into the arms of two band valves, the arm of two band valves is connected with back pool 2 with a section Great Gulch 12 respectively, and the ditch mouth of a valley in cheuch landform 1 is provided with collecting gutter 8 between the cheuch tail, on cheuch landform 1 and collecting gutter 8, be equipped with impervious barrier 10, and in collecting gutter 8, also be provided with proparea header 9 and back zone header 14, proparea header 9 is connected with back pool 2, back zone header 9 is connected with the pipe 5 that drains off floodwaters, at impervious barrier 10, be equipped with sandstone drainage layer 11 on proparea header 9 and the back zone header 14, and compartment is connected with drain well 13 on proparea header 9 and back zone header 14.
The height of regulating dam 4 is 2～3 meters.
On proparea header 9 and back zone header 14, offer aperture, and around proparea header 9 and back zone header 14, be covered with sandstone.
Pump well 13 is the steel pipe of 1.5m by diameter, offers the infiltration hole on steel pipe, and be wound with the drainage geotextile on pump well 13.
0.5～0.8 meter of the thickness of sandstone drainage layer 11.
Compartment is connected the height of the drain well 13 on proparea header 9 and the back zone header 14, raises gradually to the cheuch tail from the ditch mouth of a valley.
Compared with the prior art, the present invention is directed to the characteristics of gully type dry red mud disposal; Cut a Great Gulch by building, tackle the red mud outside rainwater in district of banking up, solved the big problem of existing gully type red mud dump rainwater remittance outside the venue amount with cutting Great Gulch in the zone iimit of gully type red mud dump planning; At gully type red mud dump middle part regulating dam is set, two districts before and after regulating dam is divided into the gully type red mud dump, and on regulating dam, also connect the pipe that drains off floodwaters, in the red mud piling up process, can reduce the amount of rainfall that enters the proparea like this; The design of flood dam also can be carried out built by separate periods to the gully type red mud dump, again the back zone red mud dump is laid anti seepage membrane when being about to come into operation in the back zone, can reduce anti seepage membrane and be exposed to the airborne time, prevents that permeable membrane is aging.And the front and back district uses independently header draining respectively, has increased the reliability of water exhaust system; When enabling in the back zone, its pipe that drains off floodwaters that is used for draining in earlier stage, reduced the investment of stockyard water discharge line as the back zone header; Simultaneously, the mode that the distribution of front and back district is built effectively reduces the initial stage construction investment of red mud dump, helps enterprise's construction.Therefore the present invention has excellent popularization to be worth and practical value, brings good economic benefits can for society and enterprise.
Description of drawings
Fig. 1 is a floor plan synoptic diagram of the present invention;
Fig. 2 is a B-B synoptic diagram of the present invention;
Fig. 3 is an A-A synoptic diagram of the present invention.
Embodiment
Embodiment: as Fig. 1, Fig. 2 and shown in Figure 3, will selectedly be used for earlier stacking the single hillside fields shape of leveling for tilting of the cheuch landform 1 of red mud, and then,, back pool 2 will be set in downstream, the ditch mouth of a valley in the ditch mouth of a valley of cheuch landform 1 build initial dam 3 from the cheuch Caudad ditch mouth of a valley; Stack building of red mud zone all around in 1 planning of cheuch landform again and cut a Great Gulch 12; Cutting Great Gulch 12 can tackle the cheuch landform 1 outer hillside rainwater in district of banking up and flow into red mud and store up the zone; At the middle part of the ditch mouth of a valley and cheuch tail a regulating dam 4 is set, the height of regulating dam 4 is 2～3 meters; The logical pipe 5 that drains off floodwaters in regulating dam 4 bottoms, be connected with the arm of two band valves by tee branch at the other end of the pipe 5 that drains off floodwaters, the arm of two band valves is connected with a section Great Gulch 12 with back pool 2 respectively, wherein the arm that is connected with back pool 2 is a return branch 6, and the arm that is connected with section Great Gulch 12 is a branch drain 7; Store up the bottom in red mud zone in cheuch landform 1, collecting gutter 8 of excavation from initial dam 1 to the cheuch tail is stored up the bottom and the sidewall laying impervious barrier 10 of zone and collecting gutter 8 at the ditch mouth of a valley to the red mud between the regulating dam 4 then; And place proparea header 9 in the bottom of the collecting gutter 8 in proparea.Proparea header 9 passes initial dam 1 and inserts back pool 2; Offer some apertures at the upper semi-circle of proparea header 9, be used for collecting infiltration, not perforate of lower half circle, as chute, and every phase is provided with plurality of rows well 13 across a certain distance on proparea header 9, drain well 13 employing diameters are that the steel pipe of 1～1.5m is made, and offer the infiltration hole on steel pipe, and be wound with the drainage geotextile on pump well 13; The width of collecting gutter 8 is bigger 1 meter than the diameter of proparea header 9 when building, and the diameter of depth ratio proparea header 9 is big 0.5 meter, and around the collecting gutter 8 of placing proparea header 9 the backfill rubble.Store up laying sandstone drainage layer 11 on the zone at the ditch mouth of a valley to the red mud between the regulating dam 4, sandstone drainage layer 11 thickness are 0.5～0.8 meter.
The height that compartment is connected the drain well 13 on proparea header 9 and the back zone header 14 is trailed landform from the ditch mouth of a valley to cheuch rising raises gradually, and the top of first drain well 13 is lower than 0.5～1 meter at the top of initial dam 1, the top of second drain well 13 is lower than 0.5～1 meter in the sub-dam crest of one-level portion, the top of the 3rd drain well 13 is lower than 0.5～1 meter in the sub-dam crest of secondary portion, the top of the 4th drain well 13 is lower than 0.5～1 meter in three grades of sub-dam crest portions, the top of n-1 drain well 13 is lower than 0.5～1 meter in the sub-dam crest of n level portion, and the like.
All the other off-set facility are identical with the construction of level land red mud dump, can come into operation after the proparea construction for the treatment of red mud dump finishes, and the valve that is connected the branch drain 7 on the pipe 5 that drains off floodwaters this moment is in open mode, and the valve on the return branch 6 is in closing condition.In initial dam 1, begin to store up red mud when stacking red mud, wastewater from red mud in the red mud partly evaporates and enters atmosphere, part flows along the red mud laminar surface, enter drain well 13 by the drainage geotextile, by infiltering under the red mud layer, enter back pool 2 by being positioned to flow automatically after collecting gutter 8 intermediary proparea headers 9 are collected again on a small quantity into sandstone drainage layer 11.During rainfall, the outside rainwater in the district of banking up is discharged near water body by cutting Great Gulch 12 interceptions.Drop to the rainwater in proparea, collect the back by proparea drain well 12 and be discharged to back pool 2 by proparea header 9.Drop to the rainwater in later stage, under the interception of regulating dam 4, outside the pipe 5 outflow storehouses of drainning off floodwaters, lead to a section Great Gulch 12 and be discharged near water body.
When the red mud face of storing up arrives first drain well 13 tops, with the top of first drain well 13 of steel plate shutoff, use second drain well 13 draining, and the like.When initial dam begins to store up red mud, when the red mud of storing up when equal with initial dam 3, on the red mud equal, build the sub-dam of one-level with initial dam 3, when the sub-dam of red mud of storing up and one-level is equal, build the sub-dam of secondary on the red mud equal with the sub-dam of one-level, the mode of building on three grades of sub-dams and the sub-dam of n level is identical with the mode of building on initial dam, the sub-dam of one-level and the sub-dam of secondary.
When red mud face absolute altitude is about to arrive the bottom of regulating dam 4, carry out the back zone construction of cheuch landform 1: lay impervious barrier 10 to the bottom of storing up zone and later half cut set ditch 8 and the sidewall of cheuch tail at regulating dam 1, in the collecting gutter 8 of back zone, back zone header 14 is set, back zone header 14 is connected with the pipe 5 that drains off floodwaters, and every a determining deviation plurality of rows well 13 is set also on back zone header 14; On bottom impervious barrier 10 and header 14, lay 0.5～0.8 meter thick sandstone drainage layer 11, the valve that drains off floodwaters this moment on the branch drain 7 of pipe on 5 is in closing condition, valve on the return branch 6 is in opened condition, and above-mentioned engineering should must be built before the red mud face arrives regulating dam 4 tops and be finished.
After back zone red mud dump construction finished, the mode that continuation is stored up red mud by the proparea was stored up red mud, utilized facilities such as drain well 13, sandstone drainage floor 11, proparea header 9, back zone header 14 that the rainwater in the wastewater from red mud and the district of banking up is delivered to back pool 2.The gradient of the height of initial dam 1, collecting gutter 8 determines that according to landform the diameter of back pool 2, drain off floodwaters pipe 5, drain well 13, proparea header 9, back zone header 14 calculates definite according to backwater amount and amount of rainfall.
Claims (9)
1. the stacked arrangement of a gully type dry red mud disposal, it comprises adopts cheuch landform (1) to store up red mud, it is characterized in that: adopting cheuch landform (1) to need earlier when storing up red mud construct as follows to selected cheuch landform (1):
A, elder generation stack the selected single hillside fields shape of cheuch landform (1) leveling for tilting from the cheuch Caudad ditch mouth of a valley that is used for doing red mud dump building of red mud zone all around in cheuch landform (1) again and cut a Great Gulch (12);
B, build back pool (2) and initial dam (3) in position, the ditch mouth of a valley;
C, build regulating dam (4) at the middle part of cheuch landform (1), go up at regulating dam (4) and connect the pipe (5) that drains off floodwaters, the other end of the pipe (5) that drains off floodwaters is connected with the arms of two band valves, is with the arm of valves to be connected with back pool (2) with a section Great Gulch (12) respectively for two;
D, at the ditch mouth of a valley between the cheuch tail excavation collecting gutter (8); Impervious barrier (10) is laid in zone between dam (3) and the regulating dam (4) in the early stage then, in the collecting gutter (8) between the regulating dam (4), put into the proparea header (9) that has the infiltration hole at the mouth of a valley, go up compartment at proparea header (9) and connect drain well (13), and add all around at proparea header (9) and to bury sandstone.
E, laying sandstone in the zone between dam (3) and the regulating dam (4) in the early stage, formation sandstone drainage layer (11);
After finishing the construction of above-mentioned cheuch landform (1), open drain off floodwaters pipe (5) and the arm valve that cuts on the Great Gulch (12), close the arm valve on drain off floodwaters pipe (5) and the back pool (2), and successively store up red mud to the cheuch tail from initial dam (3) beginning; When the red mud face height of successively storing up arrived at regulating dam (4) bottom, beginning regulating dam (4) was to the back zone red mud dump construction in territory, cheuch tail region, and its construction Line hem is:
F, lay impervious barrier (10) to the red mud zone of storing up between the cheuch tail at regulating dam (4); In the collecting gutter (8) between the cheuch tail, put into the back zone header (14) that has the infiltration hole at regulating dam (4), and go up compartment connection drain well (13), add on every side at back zone header (14) again and bury sandstone at back zone header (14);
G, lay sandstone to storing up on the red mud zone between the cheuch tail, constitute sandstone drainage layer (11) at regulating dam (4);
H, back zone header (14) is connected with the pipe (5) that drains off floodwaters, adjusts the valve with pipe (5) connecting branch that drains off floodwaters, the pipe (5) that drains off floodwaters is connected with back pool (2).
2. the stacked arrangement of gully type dry red mud disposal according to claim 1, it is characterized in that: when initial dam (3) beginning is successively stored up red mud, when the red mud face of storing up when equal with initial dam (3), on the red mud equal, build the sub-dam of one-level with initial dam (3), when the red mud face of storing up is equal with the sub-dam of one-level, on the red mud equal, build the sub-dam of secondary with the sub-dam of one-level; The mode of building on three grades of sub-dams and the sub-dam of n level is identical with the mode of building on initial dam, the sub-dam of one-level and the sub-dam of secondary.
3. the stacked arrangement of gully type dry red mud disposal according to claim 1, it is characterized in that: the height that compartment is connected the drain well (13) on proparea header (9) and the back zone header (14) is trailed landform from the ditch mouth of a valley to cheuch rising raises gradually, and the top of first drain well (13) is lower than 0.5～1 meter at initial dam (1) top, the top of second drain well (13) is lower than 0.5～1 meter in the sub-dam crest of one-level portion, the top of the 3rd drain well (13) is lower than 0.5～1 meter in the sub-dam crest of secondary portion, the top of the 4th drain well (13) is lower than 0.5～1 meter in three grades of sub-dam crest portions, the top of 1 drain well of n (13) is lower than 0.5～1 meter in the sub-dam crest of n level portion, and, need carry out shutoff to this header (13) mouth of pipe when the red mud face height of storing up during near the mouth of pipe of header (13).
4. the discharge structure of a gully type dry red mud disposal, it comprises the cheuch landform (1) that is used for stacking red mud, it is characterized in that: be provided with back pool (2) and initial dam (3) successively at the low end of cheuch landform (1) physical features, be used for stacking being provided with of red mud zone all around in cheuch landform (1) and cut a Great Gulch (12), be provided with regulating dam (4) in the middle, on regulating dam (4), be connected with the pipe (5) that drains off floodwaters, the other end of pipe (5) of drainning off floodwaters is divided into the arms of two band valves, the arm of two band valves is connected with back pool (2) with a section Great Gulch (12) respectively, and at the ditch mouth of a valley of cheuch landform (1) to being provided with collecting gutter (8) between the cheuch tail, on cheuch landform (1) and collecting gutter (8), be equipped with impervious barrier (10), and in collecting gutter (8), also be provided with proparea header (9) and back zone header (14), proparea header (9) is connected with back pool (2), back zone header (9) is connected with the pipe (5) that drains off floodwaters, in impervious barrier (10), be equipped with sandstone drainage layer (11) on proparea header (9) and the back zone header (14), and be connected with drain well (13) at proparea header (9) and the last compartment of back zone header (14).
5. the discharge structure of gully type dry red mud disposal according to claim 4, it is characterized in that: the height of regulating dam (4) is 2～3 meters.
6. the discharge structure of gully type dry red mud disposal according to claim 4 is characterized in that: offer aperture on proparea header (9) and back zone header (14), and be provided with sandstone all around at proparea header (9) and back zone header (14).
7. the discharge structure of gully type dry red mud disposal according to claim 4, it is characterized in that: pump well (13) is the steel pipe of diameter 1～1.5m, offers the infiltration hole on steel pipe, and be wound with the drainage geotextile on pump well (13).
8. the discharge structure of gully type dry red mud disposal according to claim 4 is characterized in that: 0.5～0.8 meter of the thickness of sandstone drainage layer (11).
9. the discharge structure of gully type dry red mud disposal according to claim 4, it is characterized in that: compartment is connected the height of the drain well (13) on proparea header (9) and the back zone header (14), raises gradually to the cheuch tail from the ditch mouth of a valley.
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| CN100362173C (en) * | 2004-07-16 | 2008-01-16 | 贵阳铝镁设计研究院 | Drainage assembly of dry process red mud stockyard outer dam |
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| CN2878373Y (en) * | 2006-04-03 | 2007-03-14 | 贵阳铝镁设计研究院 | Distribution device for red mud dry method storage yard |
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| CN108374384A (en) * | 2018-02-07 | 2018-08-07 | 兰州有色冶金设计研究院有限公司 | A kind of zero-emission system of tailings and implementation |
| CN110214493A (en) * | 2019-04-15 | 2019-09-10 | 中国矿业大学 | A kind of improve arranges stratum re-construction method in the opencut that soil moisture content quickly applies fertilizer |
| CN112982611A (en) * | 2021-03-02 | 2021-06-18 | 金建工程设计有限公司 | Dry red mud yard and arrangement method thereof |
| CN112982611B (en) * | 2021-03-02 | 2022-10-21 | 金建工程设计有限公司 | Dry method red mud disposal site arrangement method |
| CN113931126A (en) * | 2021-09-03 | 2022-01-14 | 陕西冶金设计研究院有限公司 | Wet-type sand making tailing piling method |
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