CN112390033A - Unloading system for dry-discharging tailings in tailing pond and application method - Google Patents
Unloading system for dry-discharging tailings in tailing pond and application method Download PDFInfo
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- CN112390033A CN112390033A CN202011363055.0A CN202011363055A CN112390033A CN 112390033 A CN112390033 A CN 112390033A CN 202011363055 A CN202011363055 A CN 202011363055A CN 112390033 A CN112390033 A CN 112390033A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/04—Spreading out the materials conveyed over the whole surface to be loaded; Trimming heaps of loose materials
- B65G69/0408—Spreading out the materials conveyed over the whole surface to be loaded; Trimming heaps of loose materials by relatively moving an endless feeding means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/32—Filling devices
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Abstract
The application provides a discharging system and a using method for dry-discharging tailings in a tailing pond, which relate to the technical field of dry-discharging of tailings and comprise a conveying belt mechanism, a discharging belt mechanism, a rotating platform, a hoisting device, a discharging device and two oppositely-arranged stand columns; the upright columns are arranged on the outer side of the dam body of the tailing pond, and the two upright columns are connected through a steel wire rope slideway; the output end of the conveying belt mechanism is arranged at the upper part of the input end of the unloading belt mechanism, the input end of the unloading belt mechanism is fixed on the rotating platform, the middle part of the unloading belt mechanism is connected with the steel wire rope slide way in a sliding way, and the output end of the unloading belt mechanism extends to a unloading point of the tailing pond; when the conveyer belt of the conveyer belt mechanism rotates, the tailing pond can be completely covered. The invention reduces the number of operation equipment, reduces the disturbance and dust emission of mechanical equipment to the tailings in the tailing pond, reduces the production cost and improves the automation degree and the safety.
Description
Technical Field
The application relates to the technical field of dry tailing discharge, in particular to a discharge system for dry tailing discharge in a tailing pond and a use method.
Background
The traditional tailing pond tailing dry discharging mode is that dewatered tailing is conveyed to the outer edge of a tailing pond through a belt, a forklift or a bulldozer is used for flattening the dry discharged tailing in the direction of the tailing pond, when the area of the tailing pond is large, a truck is required to be used for transportation in a matching mode, a plurality of mechanical devices are used, a plurality of operators are used, the raised dust in the tailing pond is large, the risk of occupational hazards is increased, the work efficiency is low, vehicles are transported and buried in the tailing pond in a reciprocating mode, tailing disturbance is caused easily, and adverse effects are brought to the safe operation of the tailing pond.
Disclosure of Invention
Aiming at the problems in the prior art, the application provides the unloading system and the using method for the dry-discharge tailings in the tailing pond, so that the beneficial effects of increasing the effective use capacity of the tailing pond, reducing the number of operation equipment, reducing the disturbance and dust raising of mechanical equipment to the tailings in the tailing pond, reducing the production cost and improving the automation degree and the safety are achieved.
The application provides a discharging system for dry-discharging tailings in a tailing pond, which comprises a conveying belt mechanism, a discharging belt mechanism, a rotating platform, a hoisting device, a discharging device and two oppositely-arranged stand columns; the upright columns are arranged on the outer side of the dam body of the tailing pond, and the two upright columns are connected through a steel wire rope slideway; the output end of the conveying belt mechanism is arranged at the upper part of the input end of the unloading belt mechanism, the input end of the unloading belt mechanism is fixed on the rotating platform, the middle part of the unloading belt mechanism is connected with the steel wire rope slide way in a sliding way, and the output end of the unloading belt mechanism extends to a unloading point of the tailing pond; when the conveying belt of the conveying belt mechanism rotates, the tailing pond can be completely covered; the lifting device is arranged on the upper portion of a belt of the discharging belt mechanism and is connected with the belt bracket in a front-back sliding mode, and the discharging device is arranged on the discharging belt mechanism.
Preferably, the upright column is arranged at an included angle between the initial dam or the stacking dam of the tailing pond and the dam body, or the upright column is arranged at an included angle between the dam body and the mountain.
Preferably, rotary platform includes carousel, base and driving motor, the base sets up on the basement rock in the dam body outside, driving motor drive carousel rotates with the base to be connected, the belt tailwheel of the belt mechanism of unloading is installed on the carousel.
Preferably, hoist device includes electric hoist, pulley, lifting rope and live-rollers, electric hoist and pulley fixed connection, pulley and wire rope sliding connection, the lifting rope passes behind the pulley and links to each other with the both ends of live-rollers respectively, the live-rollers sets up the belt bottom at the belt mechanism of unloading, the live-rollers rotates with the belt of the belt mechanism of unloading and is connected.
Preferably, the discharging device comprises a pear cutter frame, a first pear head, a second pear head, a first pull rod, a second pull rod and a driving oil cylinder, wherein the first pear head and the second pear head are V-shaped, one end of the first pull rod is fixedly connected with the inner side surface of the first pear head, and the other end of the first pull rod is rotatably connected with the pear cutter frame; one end of the second pull rod is fixedly connected with the inner side surface of the second pear head, and the other end of the second pull rod is rotatably connected with the pear knife rest; the pear knife rest is connected with the belt support in a sliding mode, the cylinder body of the driving oil cylinder is fixedly connected with the pear knife rest, a connecting rod is arranged between the first pear head and the second pear head, and the telescopic rod of the driving oil cylinder is connected with the connecting rod.
Preferably, the discharging device is arranged at the belt output end of the discharging belt mechanism or in the middle of the belt.
Preferably, the length of the upright columns is adjustable, and one of the two upright columns is provided with a pulley and a tensioning mechanism for tensioning the steel wire rope.
Preferably, the two upright columns are respectively arranged on the mountain bodies at two ends of the widest position of the tailing pond in the direction of the center line of the dam angle of the discharging point or on the outer side of the dam body.
Preferably, the upright post is fixedly connected with the ground through a fastener.
A use method of a discharging system for dry-discharging tailings in a tailing pond comprises the following steps:
the method comprises the following steps: selecting a discharging point of dehydrated tailings in a tailing pond, wherein the discharging point is positioned at an included angle between a primary dam or a stacking dam body and a dam body or between the dam body and a mountain body of the tailing pond;
step two: mounting upright columns, selecting upright column mounting points on mountains on two sides of the widest position of the tailing pond in the direction of the center line of a discharging point dam corner or on the outer side of the dam, pouring concrete after drilling at the mounting points to serve as upright column mounting bases, and finally fixing the upright columns on the bases and reinforcing and fixing the upright columns in three directions by using steel wire ropes;
step three: installing a steel wire rope slideway, installing a steel wire rope on the upright posts to serve as the slideway, installing a pulley and a tensioning mechanism at the upper end of one of the upright posts, wherein the steel wire rope penetrates through the pulley, and the tensioning mechanism is used for keeping the steel wire rope in a tensioned state;
step four: mounting a rotary platform, fixing a base of the rotary platform on the outer side of a dam body of the tailings pond, and rotatably mounting a turntable on the base;
step five: installing a discharging belt mechanism, installing a belt conveyor at a discharging point as the discharging belt mechanism, wherein the length of a belt is determined according to the length of the tailings pond, so that the vertical projection surface of the tailings pond can be completely covered during rotation, and a tail wheel of the discharging belt mechanism is installed on a rotatable turntable;
step six: a hoisting device is installed, a movable electric hoist is installed at the crossing position of a belt of the unloading belt mechanism and a steel wire rope slide way to serve as the hoisting device, and the hoisting device can slide back and forth on a belt bracket, so that the unloading belt can move up and down and rotate horizontally;
step seven: a steel wire rope is arranged at a belt head pulley bracket of the unloading belt mechanism and is fixed on a mountain or a dam close to the belt head pulley bracket, so that the belt is prevented from swinging along with wind, when the belt rotates, the fixed steel wire rope is loosened, and after the belt rotates to a position, the belt is fixed again;
step eight: the discharging device is installed, the movable electric plough type discharging device is installed on the upper portion of the discharging belt, and when the driving oil cylinder pushes the pear cutter frame to fall down through the telescopic rod, the plough plate can be tightly pressed on the upper plane of the belt, so that double-side or single-side discharging is achieved;
step nine: moving the output end of the discharging belt mechanism to the position above the tailing stacking position required by the tailing pond, and adjusting a discharging device on the discharging belt to a discharging point; starting the conveying belt mechanism, conveying the dry-discharged tailings to the discharging belt mechanism through the conveying belt mechanism, and stacking the dehydrated tailings to a discharging point through a discharging device on a discharging belt; when the tailings at the discharging point are piled to a preset elevation, starting the hoisting device, and moving the discharging device to the next discharging point; when the tail sand pile on the projection line of the discharging belt reaches a preset elevation, moving the discharging belt to the next discharging axis; and repeating the operation until the whole tailing pond is full of the tailings.
The beneficial effect of this application lies in:
1. the system is suitable for dry-discharge tailing ponds of valley type, mountain-side type, plane type, river-cut type and the like, no special requirements are made on the boundary shape of the tailing pond, the dry-discharge tailing can completely cover the whole tailing pond, and the using capacity of the tailing pond is effectively improved.
2. After the tailings conveyed by the unloading system are naturally dried, a cementing surface is formed on the surface, and the dust raising phenomenon in a tailing pond can be effectively prevented under the condition of no external disturbance damage, so that the environment protection is facilitated.
3. The dry-type tailing discharging system has the advantages that the investment is small, and the operation cost is reduced; the operation equipment is less, the disturbance of mechanical equipment to the tailings in the tailing pond is reduced, and the safe operation of the tailing pond is ensured; high automation degree, few operators and contribution to prevention and treatment of occupational disease hazards.
In addition, after the discharging system is put into use, the environmental protection and safety of the tailing pond in the operation process are effectively improved, the purpose of intrinsic safety is achieved, and the discharging system has a very wide application prospect.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic top view of a discharge system for dry discharge of tailings from a valley type tailings pond according to an embodiment of the present application.
Fig. 2 is a schematic top view of a discharge system for dry discharge of tailings from a hillside tailings pond according to an embodiment of the present application.
Fig. 3 is a schematic top view of a discharge system for dry tailings in a planar tailings pond according to an embodiment of the present application.
Fig. 4 is a schematic diagram of a conveying structure of a discharge system for dry-discharging tailings in a tailings pond according to an embodiment of the application.
Fig. 5 is a schematic structural diagram of a discharging device in one embodiment of the present application.
In the figure, 1, a vertical column, 2, a steel wire rope slideway, 3, a mountain, 4, a dam, 5, a rotating platform, 6, a discharging device, 7, a conveying belt mechanism, 8, a tailings filter pressing factory building, 9, a discharging belt mechanism, 10, a rotating shaft, 11, a rotating roller, 12, a pulley, 13, a discharging hopper, 14, a rotating disc, 15, a base, 16, a lifting rope, 17, a pear knife rest, 18, a first pear head, 19, a second pear head, 20, a first pull rod, 21, a second pull rod, 22, a driving oil cylinder, 23 and a connecting rod.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The following explains key terms appearing in the present application.
As shown in fig. 1-5, the discharging system for dry-discharging tailings in a tailings pond provided by the present application includes a conveying belt mechanism 7, a discharging belt mechanism, a rotating platform 5, a hoisting device, a discharging device 6, and two oppositely disposed upright posts 1.
The upright columns 1 are arranged on bedrock on the outer side of the dam body 4 of the tailing pond, and the two upright columns 1 are connected through steel wire rope slideways 2. The two upright columns 1 are respectively arranged on the mountain 3 at two ends of the widest position of the tailing pond in the direction of the center line of the dam angle of the discharging point or on the outer side of the dam 4. In order to improve the connection tightness of the bottom of the upright post 1, the upright post 1 is fixedly connected with the ground through a fastening piece, in this embodiment, the fastening piece is a steel wire rope.
Specifically, in the installation process of the upright column 1, firstly, installation points of the upright column 1 are selected at two sides of a mountain 3 or the outer side of a dam 4 at the widest position of a tailing pond in the center line direction of a discharging point dam corner, concrete is poured after holes are drilled at the installation points to serve as an installation foundation of the upright column 1, and finally the upright column 1 is fixed on the foundation and is reinforced and fixed by steel wire ropes in three directions.
The length of stand 1 is adjustable, stand 1 adopts telescopic rod structure, two be equipped with pulley 12 and straining device on one of stand 1, the upper end of two stand 1 passes through wire rope slide 2 and links to each other, and wire rope slide 2 walks around behind pulley 12 and links to each other with straining device, and straining device is used for taut wire rope slide 2.
The output end of the conveying belt mechanism 7 is arranged on the upper portion of the input end of the discharging belt mechanism, and the conveying belt mechanism 7 is used for enabling tailings filter cakes output from the tailings filter pressing factory building 8 to enter the discharging hopper 13 and then fall onto the belt of the discharging belt mechanism. The input of unloading belt mechanism is fixed on rotary platform 5, rotary platform 5 includes carousel 14, base 15 and driving motor, base 15 sets up on the bedrock in the 4 outsides of dam body, driving motor drive carousel 14 rotates with base 15 to be connected, be equipped with the pillar on the carousel 14, be equipped with pivot 10 on the pillar, the belt tailwheel of unloading belt mechanism installs in pivot 10. The driving motor drives the belt of the discharging belt mechanism to rotate along the base 15 through the turntable 14, and when the conveying belt of the conveying belt mechanism rotates, the tailing pond can be completely covered.
The middle part of the discharging belt mechanism is connected with the steel wire rope slide way 2 in a sliding mode, the output end of the discharging belt mechanism extends to a discharging point of a tailing pond, and tailings are conveyed to the discharging point through the discharging belt mechanism. Wherein, the discharge point can be selected at the included angle between the initial dam or the stacking dam 4 and the dam 4 or between the dam 4 and the mountain 3 of the tailing pond.
The lifting device is arranged on the upper portion of a belt of the discharging belt mechanism and is connected with the belt bracket in a front-back sliding mode. Specifically, hoist device includes electric hoist, pulley 12, lifting rope 16 and live-rollers 11, electric hoist and pulley 12 fixed connection, pulley 12 and wire rope sliding connection, lifting rope 16 passes behind pulley 12 and links to each other with the both ends of live-rollers 11 respectively, live-rollers 11 set up in the belt bottom of the belt mechanism of unloading, live-rollers 11 rotates with the belt of the belt mechanism of unloading and is connected.
The whole discharging system can completely cover the whole tailing pond when the discharging belt rotates to the other end from one end of the steel wire rope slideway 2, and the purpose of full coverage can be achieved even if the tailing pond in an irregular shape is used.
The discharging device 6 is arranged on the discharging belt mechanism, specifically, the discharging device 6 is arranged at the belt output end of the discharging belt mechanism, and end discharging is achieved. In other embodiments, the discharging device 6 can also be arranged in the middle of the discharging belt mechanism to realize middle discharging. The discharging device 6 comprises a pear knife rest 17, a plough board, a first pear head 18, a second pear head 19, a first pull rod 20, a second pull rod 21 and a driving oil cylinder 22, wherein the first pear head 18 and the second pear head 19 are V-shaped, one end of the first pull rod 20 is fixedly connected with the inner side surface of the first pear head 18, and the other end of the first pull rod is rotatably connected with the pear knife rest 17; one end of the second pull rod 21 is fixedly connected with the inner side surface of the second pear head 19, and the other end of the second pull rod is rotatably connected with the pear knife rest 17; pear knife rest 17 and belt support sliding connection, actuating cylinder 22's cylinder body and pear knife rest 17 fixed connection, the moldboard sets up in the bottom of pear knife rest 17, be equipped with connecting rod 23 between first pear head 18 and the second pear head 19, actuating cylinder 22's telescopic link links to each other with connecting rod 23. When the driving oil cylinder 22 pushes the pear cutter frame 17 to fall through the telescopic rod, the plough plate can be tightly pressed on the upper plane of the belt, and double-side or single-side discharging is realized.
The rotary platform, the hoisting device and the discharging device are all provided with automatic control systems, so that the belt is automatically adjusted in lifting, rotating, discharging positions and the like, unmanned operation is realized, and the purpose of intrinsic safety is achieved.
The invention provides a use method of a discharge system for dry-discharging tailings in a tailing pond, which comprises the following steps:
the method comprises the following steps: selecting a discharging point of dehydrated tailings in a tailing pond, wherein the discharging point is positioned at an included angle between a primary dam or a stacking dam body and a dam body or between the dam body and a mountain body of the tailing pond;
step two: mounting upright columns, selecting upright column mounting points on mountains on two sides of the widest position of the tailing pond in the direction of the center line of a discharging point dam corner or on the outer side of the dam, pouring concrete after drilling at the mounting points to serve as upright column mounting bases, and finally fixing the upright columns on the bases and reinforcing and fixing the upright columns in three directions by using steel wire ropes;
step three: installing a steel wire rope slideway, installing a steel wire rope on the upright posts to serve as the slideway, installing a pulley and a tensioning mechanism at the upper end of one of the upright posts, wherein the steel wire rope penetrates through the pulley, and the tensioning mechanism is used for keeping the steel wire rope in a tensioned state;
step four: mounting a rotary platform, fixing a base of the rotary platform on the outer side of a dam body of the tailings pond, and rotatably mounting a turntable on the base;
step five: installing a discharging belt mechanism 9, installing a belt conveyor at a discharging point as the discharging belt mechanism 9, wherein the length of a belt is determined according to the length of the tailings pond, so that the vertical projection surface of the tailings pond can be completely covered during rotation, and a tail wheel of the discharging belt mechanism 9 is installed on a rotatable turntable;
step six: a hoisting device is installed, a movable electric hoist is installed at the crossing position of a belt of the unloading belt mechanism 9 and a steel wire rope slide way to serve as the hoisting device, and the hoisting device can slide back and forth on a belt bracket, so that the unloading belt can move up and down and rotate horizontally;
step seven: a belt is fixed, a steel wire rope is arranged at a belt head pulley bracket position of the unloading belt mechanism 9 and is fixed on a mountain or a dam close to the belt head pulley bracket position, the belt is prevented from swinging along with wind, when the belt rotates, the fixed steel wire rope is loosened, and after the belt rotates to a position, the belt is fixed again;
step eight: the method comprises the following steps that a discharging device is installed, a movable electric plough type discharging device is installed on the upper portion of a discharging belt, when the discharging device is pushed by external force to fall down, a carrier roller group for supporting a conveying belt under a plough and the discharging plough are pushed by the external force synchronously to be in a linear type formed by a groove shape, and at the moment, a scraping plane under the discharging plough can press the upper plane of the conveying belt to realize double-side or single-side discharging;
step nine: moving the output end of the discharging belt mechanism 9 to the position above the tailing stacking position required by the tailing pond, and adjusting a discharging device on the discharging belt to a discharging point; starting the conveying belt mechanism 7, conveying the dry-discharged tailings to the discharging belt mechanism 9 through the conveying belt mechanism 7, and stacking the dehydrated tailings to a discharging point through a discharging device on a discharging belt; when the tailings at the discharging point are piled to a preset elevation, starting the hoisting device, and moving the discharging device to the next discharging point; when the tail sand pile on the projection line of the discharging belt reaches a preset elevation, moving the discharging belt to the next discharging axis; and repeating the operation until the whole tailing pond is full of the tailings.
Compare the novel system of unloading that this application provided with traditional windrow method, as follows:
the south, north and east of a certain plant tailing pond are leaned against the mountain, a dustpan shape with an opening facing the west is formed, the plant tailing pond belongs to a valley type tailing pond, and the overall topography is high east and low west. The initial dam is designed to be a waste rock earth dam, the top elevation of the dam is 160m, the bottom elevation of the dam is 151m, and the height of the dam is 9 m. The width of the dam crest is 4m, and the length of the dam crest is 126.86 m. The ratio of the slope in the dam body is 1:1.75, the ratio of the slope of the outer slope is 1:2.0 above the elevation of 155m, and the ratio of the slope of the outer slope is 1:1.75 below the elevation of 155 m. And the later-stage accumulation dam is constructed by grinding coarse tailings, the accumulation elevation is designed to be 175m, and the total accumulation height is 15 m. The height of each stacking sub dam is 2m, and the top width is 4 m. The outer slope of the sub-dam is 1:3.0, and the average total slope ratio of the accumulation dam is 1: 4.0. The total dam height is designed to be 24m, the total storage capacity is 97.44 ten thousand meters 3, and the design is a five-level storage.
The dry tailing discharge is a traditional discharge method, and the tailing pond is divided into three areas, namely a rolling area in front of a dam, a piling area in the pond and an airing area. The amount of the tailings discharged in a dry mode is 2000t/d, the dewatered tailings filter cake is conveyed to a north loading point by a belt conveyor, the average time of loading, unloading and one round trip from a filter pressing station to a tailing pond is calculated according to 0.5h, the tailings filter cake is conveyed to a rolling area before the tailing pond by 5 30t dump trucks to meet the requirements, then a loader is adopted to move in a short distance, and a bulldozer is used for flattening and rolling dry heaps of the tailing sand. The tailing transportation adopts a semi-fixed line, and the direction from the north side of the middle part of the reservoir area to the top of the dam is mainly used, namely the transportation line in the reservoir area gradually changes along with the propulsion of the stockpiling working face. And after the road is determined according to the actual situation of the beach surface, in order to ensure the continuity of production and emergencies, an avoidance way is arranged beside the road.
The cost of shovel loading, transportation and flattening of the dry-discharge tailings of the tailing pond is 7 yuan/ton in total, and the operation cost is about 462 million yuan per year according to the dry discharge amount of 2000t/d and the production days of 330 days per year.
The dry-discharge tailing of the tailing pond is processed by adopting the discharging system, and two sets of discharging systems are required to be installed at the intersection of the south and north of the west-side stacking dam and the mountain. The length of the discharging belt conveyor is 200 meters, the total weight is 50 tons, the discharging belt conveyor is installed in a cantilever mode, and the model selection of a steel wire rope slideway is calculated as follows according to steel wire ropes for ropeways (GB 26722-2011):
Fmin-minimum breaking tension of the steel cord in kN;
d-nominal diameter of the steel wire rope, and the unit is mm;
Rr-nominal tensile strength of the wire rope in MPa;
k-the minimum breaking force coefficient of a wire rope of a certain specified structure.
Obtaining through table lookup: k is 0.340 and Rr＝1570MPa，FminThe wire rope diameter d is 22mm by substituting 490kN for 50 × 9.8, so 226 × 36WS wire rope is selected.
The total power of an automatic control system of one set of discharging system is 30kw, the power of a belt conveyor motor is 50kw, and the total power of two sets of discharging systems is 160 kw. The operation cost is about 127 ten thousand yuan per year according to 330 days of production per year.
Therefore, compared with the traditional dry-discharge tailing stacking method, the method can save 335 ten thousand yuan each year, reduce the cost by 72.5 percent and has obvious cost reduction effect; meanwhile, after the discharge system is put into use, the environmental protection and safety aspects of the tailing pond in the operation process are effectively improved, and the purpose of intrinsic safety is achieved.
The unloading system for the dry-discharged tailings in the tailing pond is suitable for dry-discharged tailing ponds of valley type, mountain-side type, plane type, river-cut type and the like, has no special requirement on the boundary shape of the tailing pond, and can fully cover the whole tailing pond by the dry-discharged tailings, thereby effectively improving the use capacity of the tailing pond; after the tailings conveyed by the unloading system are naturally dried, a cementing surface is formed on the surface, so that the dust raising phenomenon in a tailing pond can be effectively prevented under the condition of no external disturbance damage, and the environmental protection is facilitated; the required investment is small, and the operation cost is reduced; the operation equipment is less, the disturbance of mechanical equipment to the tailings in the tailing pond is reduced, and the safe operation of the tailing pond is ensured; high automation degree, few operators and contribution to prevention and treatment of occupational disease hazards. In general, after the discharge system is put into use, the environmental protection and safety aspects of the tailing pond in the operation process are effectively improved, and the purpose of intrinsic safety is achieved.
Although the present application has been described in detail with reference to the accompanying drawings in conjunction with the preferred embodiments, the present application is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present application by those skilled in the art without departing from the spirit and scope of the present application, and these modifications or substitutions are intended to be covered by the present application/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a system of unloading of dry row tailings in tailing storehouse which characterized in that: the device comprises a conveying belt mechanism, a discharging belt mechanism, a rotating platform, a hoisting device, a discharging device and two oppositely arranged stand columns; the upright columns are arranged on the outer side of the dam body of the tailing pond, and the two upright columns are connected through a steel wire rope slideway; the output end of the conveying belt mechanism is arranged at the upper part of the input end of the unloading belt mechanism, the input end of the unloading belt mechanism is fixed on the rotating platform, the middle part of the unloading belt mechanism is connected with the steel wire rope slide way in a sliding way, and the output end of the unloading belt mechanism extends to a unloading point of the tailing pond; when the conveying belt of the conveying belt mechanism rotates, the tailing pond can be completely covered; the lifting device is arranged on the upper portion of a belt of the discharging belt mechanism and is connected with the belt bracket in a front-back sliding mode, and the discharging device is arranged on the discharging belt mechanism.
2. The tailings pond internal dry discharge system of claim 1, wherein: the upright columns are arranged at the included angle between the initial dam or the stacking dam of the tailing pond and the dam body, or the upright columns are arranged at the included angle between the dam body and the mountain body.
3. The tailings pond internal dry discharge system of claim 1, wherein: the rotary platform comprises a rotary table and a base, the base is arranged on bedrock outside the dam body, the rotary table is connected with the base in a rotating mode, and a belt tail wheel of the discharging belt mechanism is installed on the rotary table.
4. The tailings pond internal dry discharge system of claim 1, wherein: hoisting device includes electric hoist, pulley, lifting rope and live-rollers, electric hoist and pulley fixed connection, pulley and wire rope sliding connection, the lifting rope passes behind the pulley and links to each other with the both ends of live-rollers respectively, the live-rollers sets up the belt bottom at the belt mechanism of unloading, the live-rollers rotates with the belt of the belt mechanism of unloading and is connected.
5. The tailings pond internal dry discharge system of claim 1, wherein: the discharging device comprises a pear cutter frame, a first pear head, a second pear head, a first pull rod, a second pull rod and a driving oil cylinder, wherein the first pear head and the second pear head are V-shaped, one end of the first pull rod is fixedly connected with the inner side surface of the first pear head, and the other end of the first pull rod is rotatably connected with the pear cutter frame; one end of the second pull rod is fixedly connected with the inner side surface of the second pear head, and the other end of the second pull rod is rotatably connected with the pear knife rest; the pear cutter frame is characterized in that the cylinder body of the driving oil cylinder is fixedly connected with the pear cutter frame, a connecting rod is arranged between the first pear head and the second pear head, and the telescopic rod of the driving oil cylinder is connected with the connecting rod.
6. The tailings pond internal dry discharge system of claim 5, wherein: the discharging device is arranged at the belt output end of the discharging belt mechanism or the middle part of the belt.
7. The tailings pond internal dry discharge system of claim 1, wherein: the length of the upright posts is adjustable, and one of the upright posts is provided with a pulley and a tensioning mechanism for tensioning the steel wire rope.
8. The tailings pond internal dry discharge system of claim 1, wherein: the two upright columns are respectively arranged on the mountain bodies at two ends of the widest position of the tailing pond in the direction of the center line of the dam angle of the discharging point or on the outer side of the dam body.
9. The tailings pond internal dry discharge system of claim 1, wherein: the upright post is fixedly connected with the ground through a fastener.
10. A method of using the discharge system for dry discharge of tailings from a tailings pond according to any of claims 1 to 9, comprising the steps of:
the method comprises the following steps: selecting a discharging point of dehydrated tailings in a tailing pond, wherein the discharging point is positioned at an included angle between a primary dam or a stacking dam body and a dam body or between the dam body and a mountain body of the tailing pond;
step two: mounting upright columns, selecting upright column mounting points on mountains on two sides of the widest position of the tailing pond in the direction of the center line of a discharging point dam corner or on the outer side of the dam, pouring concrete after drilling at the mounting points to serve as upright column mounting bases, and finally fixing the upright columns on the bases and reinforcing and fixing the upright columns in three directions by using steel wire ropes;
step three: installing a steel wire rope slideway, installing a steel wire rope on the upright posts to serve as the slideway, installing a pulley and a tensioning mechanism at the upper end of one of the upright posts, wherein the steel wire rope penetrates through the pulley, and the tensioning mechanism is used for keeping the steel wire rope in a tensioned state;
step four: mounting a rotary platform, fixing a base of the rotary platform on the outer side of a dam body of the tailings pond, and rotatably mounting a turntable on the base;
step five: installing a discharging belt mechanism, installing a belt conveyor at a discharging point as the discharging belt mechanism, wherein the length of a belt is determined according to the length of the tailings pond, so that the vertical projection surface of the tailings pond can be completely covered during rotation, and a tail wheel of the discharging belt mechanism is installed on a rotatable turntable;
step six: a hoisting device is installed, a movable electric hoist is installed at the crossing position of a belt of the unloading belt mechanism and a steel wire rope slide way to serve as the hoisting device, and the hoisting device can slide back and forth on a belt bracket, so that the unloading belt can move up and down and rotate horizontally;
step seven: a steel wire rope is arranged at a belt head pulley bracket of the unloading belt mechanism and is fixed on a mountain or a dam close to the belt head pulley bracket, so that the belt is prevented from swinging along with wind, when the belt rotates, the fixed steel wire rope is loosened, and after the belt rotates to a position, the belt is fixed again;
step eight: the method comprises the following steps that a discharging device is installed, a movable electric plough type discharging device is installed on the upper portion of a discharging belt, when the discharging device is pushed by external force to fall down, a carrier roller group for supporting a conveying belt under a plough and the discharging plough are pushed by the external force synchronously to be in a linear type formed by a groove shape, and at the moment, a scraping plane under the discharging plough can press the upper plane of the conveying belt to realize double-side or single-side discharging;
step nine: moving the output end of the discharging belt mechanism to the position above the tailing stacking position required by the tailing pond, and adjusting a discharging device on the discharging belt to a discharging point; starting the conveying belt mechanism, conveying the dry-discharged tailings to the discharging belt mechanism through the conveying belt mechanism, and stacking the dehydrated tailings to a discharging point through a discharging device on a discharging belt; when the tailings at the discharging point are piled to a preset elevation, starting the hoisting device, and moving the discharging device to the next discharging point; when the tail sand pile on the projection line of the discharging belt reaches a preset elevation, moving the discharging belt to the next discharging axis; and repeating the operation until the whole tailing pond is full of the tailings.
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| CN112390033B CN112390033B (en) | 2022-07-12 |
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| CN112390033B (en) | 2022-07-12 |
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