CN214577177U - Overflow tailing high-concentration cemented filling system - Google Patents
Overflow tailing high-concentration cemented filling system Download PDFInfo
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- CN214577177U CN214577177U CN202120955963.2U CN202120955963U CN214577177U CN 214577177 U CN214577177 U CN 214577177U CN 202120955963 U CN202120955963 U CN 202120955963U CN 214577177 U CN214577177 U CN 214577177U
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Abstract
The utility model relates to an overflow tailings high concentration cemented filling system, break up metering device, stock device, agitating unit and drag pump including pressure filter, tailings, the pressure filter is used for carrying out the degree of depth dehydration with the higher concentration tailing slurry after the thickener is dense and prepares the tailings filter cake, and the tailings is broken up metering device and is used for breaking up the tailings filter cake. The material storage device is used for containing cementing materials, water and scattered tailings, the stirring device is used for stirring and activating the tailings, the cementing materials and the water which are metered by the material storage device, and the drag pump is used for pumping high-concentration cementing filling slurry to an area to be filled. The utility model discloses uniting dense and filter-pressing technology, breaking up the filter cake earlier and pass through agitating unit stirring activation again, realized the degree of depth dehydration of overflow tailings, improved the concentration of the cemented filling ground paste of high concentration, the cemented filling ground paste of high concentration of preparing is even, mobile good, the concentration fluctuation is little, is favorable to the transport of ground paste, has improved the stability of the obturator that forms after the sclerosis.
Description
Technical Field
The utility model relates to a filling system, concretely relates to overflow tailings high concentration cemented filling system belongs to mine filling technical field.
Background
While the mining industry in China is rapidly developed, the production amount of the tailings is increased year by year, wherein the amount of the fine-grade tailings is more prominent, people actively explore the treatment aspect of the tailings in order to eliminate the negative influence caused by the tailings, and the tailing high-concentration filling (paste filling) technology is widely applied industrially with good economic benefit, social benefit and high tailing utilization rate. At present, the high-concentration tail mortar is prepared by a common deep cone thickening process, but due to the superfine composition of the overflow tail sand in particle size and mineral components, the concentration of the tail mortar obtained when thickening and dewatering are independently adopted is not high, the hardening period is long when the tail mortar is used for underground filling, the strength of a formed filling body is low, and the requirements of underground filling mining cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model provides an overflow tailings high concentration cemented filling system for improve the concentration of filling ground paste.
In order to solve the technical problem, the utility model discloses a following technical scheme:
overflow tailings high concentration cemented filling system, its characterized in that: the tailing scattering metering device is used for scattering tailing filter cakes; the material storage device comprises a powder measuring hopper for containing a cementing material, a water measuring hopper for containing water and a tailing measuring hopper for containing scattered tailing, a transfer belt is connected between a feed inlet of the tailing measuring hopper and the tailing scattering measuring device, a water tank is arranged above the water measuring hopper and is used for being connected with a reservoir for storing overflow water of the thickener;
the stirring device is used for stirring and activating the tailings, the cementing material and the water which are metered by the material storage device to form high-concentration cemented filling slurry, and the drag pump is used for pumping the high-concentration cemented filling slurry to an area to be filled through the conveying pipeline.
As a further improvement of the utility model, the stirring device comprises a first-level horizontal stirrer and a second-level vertical stirrer, the first-level horizontal stirrer is provided with a first-level stirring tank, the second-level vertical stirrer is provided with a second-level stirring tank, discharge ports of the powder measuring hopper, the water measuring hopper and the tailing measuring hopper are respectively connected with a feed port of the first-level stirring tank, the discharge port of the first-level stirring tank is used for being matched with a feed port of a stirring tank of the second-level vertical stirrer, and the second-level stirring tank is connected with a cache tank; the towing pump is provided with a feed hopper, and a discharge port of the buffer tank is connected with the feed hopper of the towing pump; the sum of the volumes of the buffer tank and the second-stage stirring tank is not less than two times of the feed hopper of the drag pump, and the discharge port of the drag pump is connected with the filling area through a conveying pipeline.
As a further improvement of the utility model, the tailing scattering and metering device comprises a machine body, a conical bin arranged on the machine body, a scattering shaft arranged in the conical bin and a belt conveyor arranged below the conical bin, wherein discharge ports are respectively arranged on two sides of the lower part of the conical bin; the belt conveyor comprises a rack, a static metering belt arranged on the rack and a guide assembly arranged above the static metering belt, wherein the guide assembly comprises a left side inclined plate and a right side inclined plate which are arranged along the trend of the static metering belt, the left side inclined plate and the right side inclined plate are arranged relatively, the upper end edges of the left side inclined plate and the right side inclined plate are respectively arranged on the rack, and the distance between the lower end edges of the left side inclined plate and the right side inclined plate is shorter.
As a further improvement of the utility model, the metering device is broken up to the tailings still includes the actuating mechanism who is used for controlling toper feed bin blowing, actuating mechanism includes the striker plate with toper feed bin lower part discharge gate one-to-one and is used for driving the striker plate pivoted cylinder that corresponds, the upper end limit of striker plate is articulated with toper feed bin, the cylinder and the organism of cylinder are articulated, and the piston rod of cylinder is articulated with the striker plate that corresponds, and the piston rod of the cylinder promotes the striker plate and rotates for toper feed bin for opening and close discharge gate control toper feed bin blowing.
As the utility model discloses a further improvement, the one end of transporting the belt cooperatees with static measurement belt, and the other end cooperatees with the feed end of tailings weighing hopper for the tailings after breaking up the measurement is carried to the tailings weighing hopper.
As a further improvement, the powder measuring hopper and the water measuring hopper are provided with weighing sensors at the bottoms thereof for measuring the weight of the gelled material and the water respectively.
As a further improvement of the utility model, the overflow tailing high concentration cemented filling system still includes the thickener, the thickener is used for carrying out the dense dehydration to the swirler overflow tailing ore pulp of low concentration to obtain high concentration tailing pulp.
As the utility model discloses a further improvement, overflow tailings high concentration cemented filling system still includes screw conveyer and is used for providing gelled material's gelled material feed bin for the powder batch hopper, screw conveyer one end links to each other with the gelled material storehouse, and the other end links to each other with the powder batch hopper for carry gelled material to the powder batch hopper in.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model combines the thickening and the filter pressing processes, firstly breaks up the filter cake and then stirs and activates the filter cake through the stirring device, realizes the deep dehydration of the overflow tailings, improves the concentration of the high-concentration cemented filling slurry, has even prepared high-concentration cemented filling slurry, good fluidity and small concentration fluctuation, is beneficial to the transportation of the slurry, and improves the stability of the filling body formed after hardening;
2. the volume sum of the buffer tank and the second-stage stirring tank is more than twice of the volume of the hopper of the trailer pump, so that the intermittent preparation and continuous filling are realized, the system can continuously provide filling slurry for the trailer pump, and the filling efficiency is improved;
3. the tailing scattering metering device realizes the discharging of the conical bin through the cylinder control baffle plate, so that the filter cake is fully scattered in the conical bin, and the guide assembly can effectively concentrate scattered tailing onto the static metering belt, thereby improving the practicability of the utility model;
4. the utility model discloses a static measurement mode measurement tailings, cementitious material and water, measurement accuracy is high, has reduced the fluctuation of filling ground paste concentration, has improved the stability of obturator.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
fig. 2 is the embodiment of the present invention, which illustrates the structure of the tailing scattering and metering device.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1, the present embodiment is an overflow tailing high-concentration cemented filling system, which includes a thickener 1, a filter press 2, a tailing scattering metering device 3, a material storage device, a stirring device, and a drag pump 10 for conveying filling slurry, where the thickener 1 is used to perform thickening and dewatering on low-concentration cyclone overflow tailing slurry to obtain high-concentration tailing slurry, and the filter press 2 is used to perform deep dewatering on the high-concentration tailing slurry thickened by the thickener 1 to obtain tailing filter cake. Metering device 3 is broken up to the tailings is used for breaking up the tailings filter cake, the stock device is including the powder weighing hopper 7 that is used for holding cementitious material, the water weighing hopper 6 that is used for holding water and be used for holding the tailings weighing hopper 5 of breaking up the back tailings, the feed inlet of tailings weighing hopper 5 is connected with between the metering device 3 is broken up to the tailings and is transported belt 4, 6 tops of water weighing hopper are provided with water tank 13, water tank 13 is used for being connected with the cistern 14 of storing 1 overflow water of thickener.
And weighing sensors are arranged at the bottoms of the powder measuring hopper 7 and the water measuring hopper 6 and are respectively used for measuring the weight of the cementing material and the weight of the water.
This embodiment still includes screw conveyer 12 and is arranged in providing the cementitious material feed bin of cementitious material for powder metering hopper 7, screw conveyer 12 one end links to each other with the cementitious material storehouse, and the other end links to each other with powder metering hopper 7 for carry cementitious material to in the powder metering hopper 7. Specifically, the amount of the cementing material required by the cementing material bin for storing two to three days in the embodiment is determined by a filling proportion test according to the requirement of mine mining on the compression strength of the filling body, wherein the cementing material is matched with overflow tailings.
The stirring device comprises a primary horizontal stirrer 8 and a secondary vertical stirrer 9, wherein the primary horizontal stirrer 8 is provided with a primary stirring tank, and the secondary vertical stirrer 9 is provided with a secondary stirring tank. The trailer pump 10 is equipped with the feeder hopper, the discharge gate of powder measuring hopper 7, water measuring hopper 6 and tailings measuring hopper 5 is connected with the one-level stirred tank respectively, the discharge gate of one-level stirred tank is used for cooperateing with the feed inlet of second grade stirred tank, the second grade stirred tank is connected with buffer memory tank 11, buffer memory tank 11 is connected with the feeder hopper of trailer pump 10. The sum of the volumes of the buffer tank 11 and the second-stage stirring tank is not less than twice of the volume of the feed hopper of the drag pump 10, and the discharge port of the drag pump 10 is connected with a filling area through a conveying pipeline. Specifically, in this embodiment, the primary horizontal mixer 8 and the secondary vertical mixer 9 are arranged vertically, and the primary horizontal mixer 8 and the secondary vertical mixer 9 are used for stirring and activating the tailings, the cementitious material, and the water which are metered in a static metering manner, so as to form the high-concentration cementitious filling slurry. The trailer pump 10 is used to pump high consistency cementitious fill slurry through a delivery line to the area to be filled.
Further, as shown in fig. 2, the tailings scattering and metering device 3 includes a machine body 31, a conical bin 32 installed on the machine body 31, a scattering shaft installed in the conical bin 32, and a belt conveyor 35 disposed below the conical bin 32, wherein discharge ports are respectively disposed on two sides of the lower portion of the conical bin 32. The belt conveyor 35 comprises a rack, a static metering belt 351 mounted on the rack and a material guiding assembly arranged above the static metering belt 351, wherein the material guiding assembly comprises a left side inclined plate 352 and a right side inclined plate 353 which are arranged along the trend of the static metering belt 351, the left side inclined plate 352 and the right side inclined plate 353 are oppositely arranged, the upper end edges of the left side inclined plate 352 and the right side inclined plate 353 are respectively mounted on the rack, and the distance between the lower end edges of the left side inclined plate 352 and the right side inclined plate 353 is short. Specifically, the left inclined plate 352 and the right inclined plate 353 are made of an ultra-high molecular weight polyethylene wear-resistant material.
Specifically, the one end of transporting belt 4 cooperatees with static measurement belt 351, and the other end cooperatees with the feed end of tailings weighing hopper 5 for the tailings after breaking up the measurement are carried to tailings weighing hopper 5.
The using method of the embodiment comprises the following steps:
after the whole tailing mortar of the concentrating mill is graded by a swirler, the graded overflow tailing of the swirler enters a thickener 1 for flocculation thickening and primary dehydration to obtain high-concentration tailing mortar with the mass concentration of 45-55%, and the high-concentration tailing mortar is pumped to a filter press 2 for deep dehydration to prepare a filter cake. The filter cake is transported to the tailings by the loader and is broken up metering device 3, the filter cake is broken up the axle in toper feed bin 32 and is beaten, the piston rod extension of breaking up in-process cylinder 34 promotes the discharge gate of striker plate 33 shutoff toper feed bin 32, 34 piston rod shrink pulling striker plate 33 of back cylinder of breaking up open the discharge gate, the tailings after breaking up fall to static metering belt 351 after the guide subassembly direction on, start belt conveyor 35 behind static metering, static metering belt 351 transports the tailings that the measurement is good to tailings weighing hopper 5 through transporting belt 4. And simultaneously, respectively measuring the cementing material and the water in a static measuring mode, after the measurement is finished, putting the cementing material and the water into a primary horizontal stirrer 8 and a stirring tank at the interval of 5s according to the sequence of the water, the tailings and the cementing material for primary stirring, then putting the cementing material and the water into a secondary stirring tank of a secondary vertical stirrer 9 for secondary stirring, putting the qualified high-concentration cementing filling slurry into a cache tank 11, finally entering a feed hopper of a drag pump 10, and conveying the slurry to an area to be filled through the drag pump 10 and a conveying pipeline.
In the filling process of this embodiment, the filter cake, the cementing material and the water are prepared into a high-concentration cemented filling slurry by an intermittent preparation and continuous filling method to fill the region to be filled. When not filled, the filter cake prepared by the filter press 2 is transported out by a truck and stockpiled to a filter press tailing yard. In the embodiment, the tailing thickening and the filter pressing are combined, and the continuous filling process for intermittently preparing the high-concentration cementing slurry is adopted, so that the high-quality filling of the overflow tailings is realized, and the method has better adaptability to mining and mining of unbalanced mines.
Specifically, in the composition of the overflow tailing fraction in the embodiment, the content of-400 meshes is more than or equal to 65%, the mass concentration of the high-concentration tailing slurry prepared by the thickener 1 is 40% -50%, the water content of the filter cake prepared by the filter press 2 is less than or equal to 20%, the prepared high-concentration cemented filling slurry is a homogeneous structural flow, and the mass concentration of the slurry is more than or equal to 64%.
Claims (8)
1. Overflow tailings high concentration cemented filling system, its characterized in that: the tailing scattering and metering device comprises a filter press (2), a tailing scattering and metering device (3), a material storage device, a stirring device and a drag pump (10), wherein the filter press (2) is used for deeply dehydrating the high-concentration tailing slurry concentrated by the thickener (1) to prepare a tailing filter cake, and the tailing scattering and metering device (3) is used for scattering the tailing filter cake; the material storage device comprises a powder measuring hopper (7) for containing a cementing material, a water measuring hopper (6) for containing water and a tailing measuring hopper (5) for containing scattered tailing, a transfer belt (4) is connected between a feed inlet of the tailing measuring hopper (5) and the tailing scattering measuring device (3), a water tank (13) is arranged above the water measuring hopper (6), and the water tank (13) is used for being connected with a reservoir (14) for storing overflow water of the thickener (1);
the stirring device is used for stirring and activating the tailings, the cementing material and water to form high-concentration cemented filling slurry, and the towing pump (10) is used for pumping the high-concentration cemented filling slurry to an area to be filled through a conveying pipeline.
2. The overflow tailings high-consistency cement pack system of claim 1, wherein: the stirring device comprises a primary horizontal stirrer (8) and a secondary vertical stirrer (9), the primary horizontal stirrer (8) is provided with a primary stirring tank, the secondary vertical stirrer (9) is provided with a secondary stirring tank, discharge ports of the powder measuring hopper (7), the water measuring hopper (6) and the tailing measuring hopper (5) are respectively connected with a feed port of the primary stirring tank, the discharge port of the primary stirring tank is used for being matched with a feed port of the secondary stirring tank, and the secondary stirring tank is connected with a cache tank (11); the towing pump (10) is provided with a feed hopper, and a discharge hole of the buffer tank (11) is connected with the feed hopper of the towing pump (10); the sum of the volumes of the buffer tank (11) and the second-stage stirring tank is not less than twice of the volume of the feed hopper of the drag pump (10), and the discharge port of the drag pump (10) is connected with a filling area through a conveying pipeline.
3. The overflow tailings high-consistency cement pack system of claim 1, wherein: the tailing scattering and metering device (3) comprises a machine body (31), a conical bin (32) arranged on the machine body (31), a scattering shaft arranged in the conical bin (32) and a belt conveyor (35) arranged below the conical bin (32), wherein discharge holes are respectively formed in two sides of the lower part of the conical bin (32); the belt conveyor (35) comprises a rack, a static metering belt (351) installed on the rack and a material guide assembly arranged above the static metering belt (351), wherein the material guide assembly comprises a left side inclined plate (352) and a right side inclined plate (353) which are arranged along the trend of the static metering belt (351), the left side inclined plate (352) and the right side inclined plate (353) are arranged oppositely, the upper end edges of the left side inclined plate (352) and the right side inclined plate (353) are installed on the rack respectively, and the distance between the lower end edges of the left side inclined plate (352) and the right side inclined plate (353) is shorter.
4. The overflow tailings high-consistency cement pack system of claim 3, wherein: metering device (3) are broken up to tailings still includes the actuating mechanism who is used for controlling toper feed bin (32) blowing, actuating mechanism include striker plate (33) with toper feed bin (32) lower part discharge gate one-to-one and be used for driving striker plate (33) pivoted cylinder (34) that corresponds, the upper end limit of striker plate (33) is articulated with toper feed bin (32), the cylinder and organism (31) of cylinder (34) are articulated, and the piston rod of cylinder (34) is articulated with striker plate (33) that corresponds, and cylinder (34) piston rod promotes striker plate (33) and rotates for toper feed bin (32) for open and close discharge gate control toper feed bin (32) blowing.
5. The overflow tailings high-consistency cement pack system of claim 3, wherein: the one end of transporting belt (4) cooperatees with static measurement belt (351), and the other end cooperatees with the feed end of tailings weighing hopper (5) for tailings after breaking up the measurement are carried to tailings weighing hopper (5).
6. The overflow tailings high-concentration cement pack system according to any of claims 1 to 5, wherein: and weighing sensors are arranged at the bottoms of the powder measuring hopper (7) and the water measuring hopper (6) and are respectively used for measuring the weight of the cementing material and the weight of the water.
7. The overflow tailings high-concentration cement pack system according to any of claims 1 to 5, wherein: the overflow tailing high-concentration cemented filling system further comprises a thickener (1), wherein the thickener (1) is used for thickening and dehydrating low-concentration cyclone overflow tailing pulp to obtain high-concentration tailing pulp.
8. The overflow tailings high-concentration cement pack system according to any of claims 1 to 5, wherein: the overflow tailing high-concentration cemented filling system further comprises a screw conveyor (12) and a cementing material bin for providing a cementing material for the powder measuring hopper (7), wherein one end of the screw conveyor (12) is connected with the cementing material bin, and the other end of the screw conveyor is connected with the powder measuring hopper (7) and used for conveying the cementing material to the powder measuring hopper (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120955963.2U CN214577177U (en) | 2021-05-07 | 2021-05-07 | Overflow tailing high-concentration cemented filling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120955963.2U CN214577177U (en) | 2021-05-07 | 2021-05-07 | Overflow tailing high-concentration cemented filling system |
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| Publication Number | Publication Date |
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| CN214577177U true CN214577177U (en) | 2021-11-02 |
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|---|---|---|---|
| CN202120955963.2U Active CN214577177U (en) | 2021-05-07 | 2021-05-07 | Overflow tailing high-concentration cemented filling system |
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- 2021-05-07 CN CN202120955963.2U patent/CN214577177U/en active Active
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