CN210217832U

CN210217832U - Filling system

Info

Publication number: CN210217832U
Application number: CN201921262444.7U
Authority: CN
Inventors: Youwei Xiong; 熊有为; Fuchun Liu; 刘福春; Enyan Liu; 刘恩彦
Original assignee: CINF Engineering Corp Ltd
Current assignee: CINF Engineering Corp Ltd
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-03-31
Anticipated expiration: 2029-08-06

Abstract

The utility model discloses a filling system, which comprises a tailing density adjusting device, a cementing material feeding bin, a stirring device, a collecting device and a feeding pipe; the collecting device comprises a collecting groove, a guide plate and a grid, the collecting groove is a cylinder with two open ends, the upper end of the collecting groove is provided with a sealing cover, the bottom end of the collecting groove is communicated with a filling drilling pipeline, and a plurality of feeding ports are arranged outside the side wall of the upper part of the collecting groove; the guide plate is an arc plate, is obliquely arranged in the material collecting groove along the circumferential direction, and the high end of the guide plate is higher than the material inlet; the grid is arranged in the material collecting groove and is positioned below the lower end of the guide plate; the tailing density adjusting device and the cementing material feeding bin are respectively communicated with the stirring devices, the discharge ends of the stirring devices are connected with feeding pipes, and outlets of the feeding pipes are converged into the material collecting groove in a tangential direction. Therefore, a plurality of stirring systems share one filling drill hole, the preparation requirement of large-flow filling slurry is met, the number of the drill holes is reduced, and the construction difficulty and the construction cost are reduced.

Description

Filling system

Technical Field

The utility model belongs to the technical field of mine collecting space area fills, especially relate to a filling system.

Background

The filling mining method can prepare tailings generated by a mine into slurry and fill the slurry to a goaf, so that the stockpiling of surface tailings is reduced or eliminated, and the deformation and movement of surrounding rocks are controlled after the goaf is filled, and the contradiction between mine resource development and safety and environmental protection can be effectively solved. With the continuous development and progress of mining technology and equipment, more and more mines adopt a large-scale mining mode to reduce the production cost of enterprises and improve the market competitiveness of the enterprises. Large-scale mining of mines generally requires that the filling system has large slurry preparation and conveying capacity. In order to ensure the stirring uniformity of the filling slurry and the safety and reliability of the preparation system, a plurality of sets of stirring systems are generally arranged to complement each other or be standby each other, so that the preparation requirement of the large-flow filling slurry is met. In general, each set of filling slurry stirring system is provided with a special filling drill hole, but for a plurality of mines with limited surface industrial sites or complicated engineering geological conditions, too many filling drill holes can cause the mines to have the problems of difficult drilling site selection, high construction cost, complicated slurry reversing distribution, large pipeline material consumption and the like.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's weak point, provide a filling system that can realize the same drilling that fills of many sets of mixing system sharing.

The utility model provides a filling system, which comprises a tailing density adjusting device, a cementing material feeding bin, a stirring device, a collecting device and a feeding pipe; the collecting device comprises a collecting groove, a guide plate and a grid, the collecting groove is a cylinder with two open ends, the upper end of the collecting groove is provided with a sealing cover, the bottom end of the collecting groove is communicated with a filling drilling pipeline, and a plurality of feeding ports are arranged outside the side wall of the upper part of the collecting groove; the guide plate is an arc plate, is obliquely arranged in the material collecting groove along the circumferential direction, and the high end of the guide plate is higher than the material inlet; the grid is arranged in the material collecting groove and is positioned below the lower end of the guide plate; the tailing density adjusting device and the cementing material feeding bin are respectively communicated with the stirring devices, the discharge ends of the stirring devices are connected with feeding pipes, and outlets of the feeding pipes are converged into the material collecting groove in a tangential direction.

Preferably, the material collecting groove comprises an upper cylinder and a lower cone; the cover is hinged to the top end of the cylinder.

In order to prevent the large part from blocking the drilled hole, the grating is a circular grating, the outer diameter of the circular grating is smaller than the inner diameter of the cylinder, the grating comprises a plurality of threaded steels which are uniformly distributed in a longitudinal and transverse mode, and the longitudinal distance and the transverse distance are both 50 mm-100 mm; the grating is arranged at the boundary of the cylinder and the cone.

In order to facilitate the formation of full pipe flow in the drill hole, two guide plates are arranged symmetrically, and the high end of each guide plate is 5-10 mm higher than the feeding port.

Preferably, the discharge ends of the feeding pipes and the inner wall of the cylinder at the upper part of the material collecting groove are arranged in a tangential declination mode, the downward inclination angle of the feeding pipes is 0-45 degrees, and the feeding pipes are arranged outside the material collecting groove in an annular array mode.

In one embodiment, the tailings concentration adjusting device is a deep cone thickener; the cementing material feeding bin is a cylindrical bin, and the bottom end of the feeding bin is a conical opening; the stirring device comprises a stirring cylinder and stirring paddles, two ends of the stirring cylinder are closed, the upper end of the stirring cylinder is provided with a pair of feeding holes, the lower end of the stirring cylinder is provided with a discharging hole, and the stirring paddles are coaxially arranged in the stirring cylinder and driven by a motor; the stirring devices are multiple and are connected in parallel, one feed inlet of each stirring device is communicated with the tailing density adjusting device, the other feed inlet of each stirring device is communicated with the cementing material feeding bin, and the discharge outlet of each stirring device is communicated with the collecting device through a feeding pipe.

The utility model discloses when putting into operation, pour into each mixing system with the underflow respectively through the dense adjusting device of tailings, pour into each mixing system with cement through gelled material feed bin simultaneously in, underflow and cement converge in the silo through the feed pipe respectively after mixing in different mixing systems, in the silo that gathers materials, the effect through the guide plate after the quick tangential inflow of ground paste, it converges to be the spiral decline rapidly along section of thick bamboo wall, after the bold material filters through the grid, collide the extrusion in the silo lower part that gathers materials, exhaust gas, form full duct flow in filling the drilling pipeline, carry to the collecting space area in the pit. Therefore, a plurality of stirring systems share one filling drill hole, the preparation requirement of large-flow filling slurry is met, the number of the drill holes is reduced, and the construction difficulty and the construction cost are reduced.

Drawings

Fig. 1 is a schematic cross-sectional view of a first preferred embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of the pooling device and feeder tube in accordance with one preferred embodiment.

FIG. 3 is an enlarged top view of the pooling device and feeder tube in accordance with one preferred embodiment. (the cover is drawn)

FIG. 4 is an enlarged top view of the pooling device and the feeder tube of the second preferred embodiment. (the cover is drawn)

FIG. 5 is an enlarged top view of the pooling device and the feeder tube of the third preferred embodiment. (the cover is drawn)

Sequence numbers of the drawings:

1-a tailing concentration adjusting device;

2, a cementing material feeding bin;

3-stirring device, 31-stirring drum, 32-stirring paddle, 33-motor;

4-a collecting device, 41-a collecting groove, 42-a guide plate, 43-a grid and 44-a sealing cover;

5, a feeding pipe; and 6, filling the drilling pipeline.

Detailed Description

First preferred embodiment, as shown in fig. 1, the filling system disclosed in this embodiment comprises a tailings thickening adjusting device 1, a cementitious material feeding bin 2, a stirring device 3, a collecting device 4 and a feeding pipe 5, wherein the stirring device 3 is provided in two sets.

In the implementation, the tailing density adjusting device 1 is selected as a deep cone thickener; the gelled material feeding bin 2 is a cylindrical bin, and the bottom end of the cylindrical bin is a conical opening; the stirring device 3 comprises a stirring cylinder 31 and stirring paddles 32, two ends of the stirring cylinder are closed, the upper end of the stirring cylinder is provided with a pair of feeding holes, the lower end of the stirring cylinder is provided with a discharging hole, and the stirring paddles are coaxially arranged in the stirring cylinder and driven by a motor 33; the slurry is fed to the collector 4 via the mixing device via the feed pipe 5.

As shown in fig. 2 and 3, the collecting device 4 includes a collecting chute 41, a baffle 42, and a grid 43. The material collecting groove 41 is an integral part and comprises a cylinder on the upper portion and a conical cylinder on the lower portion, a sealing cover 44 is hinged to the top end of the cylinder, a pair of material inlet openings are formed in the side wall of the cylinder, the bottom end of the conical cylinder is communicated with a filling drilling pipeline 6, the sealing cover is made of a 5mm steel plate, the diameter and the height of the cylinder are 1.5 meters, and the taper angle of the conical cylinder is set to be 30 degrees. Guide plate 42 adopts thick 10mm, wide 15 mm's bar steel sheet to bend to the circular arc board, arranges a pair of guide plate in the groove that gathers materials along circumference slope, and its high-end is higher than pan feeding mouth 5mm, realizes that ground paste push-down helps the flow control to, and the ground paste is toward the 6 direction movements of lower part filling drilling pipeline with higher speed, and the extrusion of colliding in the centrum of groove lower part that gathers materials, exhaust air is favorable to the ground paste to form full pipe flow in filling drilling pipeline. Grid 3 is the round line grid that criss-cross deformed steel bar made, and horizontal and vertical adjacent deformed steel bar interval 50mm prevents that bulk material or maintenance utensil from falling into and filling the drilling, leads to the drilling to block up, and the grid external diameter is 1480mm slightly less than the drum diameter to put into the juncture of drum and awl section of thick bamboo, also be convenient for take out. The discharge end terminal surface of feed pipe 5 is the inclined plane to the discharge end and the tangent setting in groove that gathers materials of feed pipe, the feed pipe is down inclined 15 simultaneously, thereby guarantees to fill the ground paste and be the tangential pan feeding when getting into groove upper portion drum by the feed pipe, is the spiral decline rapidly along section of thick bamboo wall and converges.

When the device is used, tailing is thickened and dewatered by a deep cone thickener to form underflow with the mass concentration of 68% -70%, cement is stably conveyed by a cementing material bin according to the ash-sand ratio of 1:4, tailing of the thickened underflow and the cement enter two sets of stirring devices through pipelines respectively, the stirred slurry is converged into a collecting tank through a feeding pipe respectively, the slurry flows in tangentially and rapidly through a guide plate, then spirally descends along the wall of the barrel and converges, a large block of material is filtered by a grid, then collision extrusion is carried out in a cone barrel at the lower part of the collecting tank, gas is discharged, a full pipe flow is formed in a filling drilled hole pipeline, and the full pipe flow is conveyed to an underground mining goaf. After filling, the mixing drum is washed by clear water, and the material collecting groove and the filling drilling pipeline are cleaned by the connected feeding pipe.

Through the application of this embodiment, realize two sets of cover mixing systems and share one and fill the drilling, reduced drilling quantity when satisfying large-traffic filling ground paste preparation demand, reduced the construction degree of difficulty and construction cost.

Second preferred embodiment, as shown in fig. 4, the present embodiment is different from the first preferred embodiment in that: the stirring device is provided with three sets of stirring devices, the corresponding feeding pipes are provided with three feeding pipes, and the three feeding pipes are uniformly distributed outside the material collecting groove.

Third preferred embodiment, as shown in fig. 5, the present embodiment is different from the first preferred embodiment in that: the stirring device is provided with four sets, the corresponding feeding pipes are provided with four sets, and the four feeding pipes are uniformly distributed outside the material collecting groove.

To sum up, the utility model can realize that a plurality of sets of mixing systems share one filling drill hole, thereby meeting the preparation requirement of large-flow filling slurry and reducing the number of drill holes, and reducing the construction difficulty and the construction cost; and when gathering materials, the feed pipe is tangent with the groove that gathers materials and sets up, and the feed pipe is oblique down, makes the ground paste can flow in by quick tangential, again through the guide plate effect, is the spiral decline rapidly along section of thick bamboo wall and converges, filters the back with the bold material through the grid, collides the extrusion in the awl section of thick bamboo of groove lower part that gathers materials, and exhaust gas forms full pipe flow in filling the drilling pipeline, does benefit to the packing.

Claims

1. A filling system, characterized by: the device comprises a tailing concentration adjusting device, a cementing material feeding bin, a stirring device, a collecting device and a feeding pipe;

the collecting device comprises a collecting groove, a guide plate and a grid, the collecting groove is a cylinder with two open ends, the upper end of the collecting groove is provided with a sealing cover, the bottom end of the collecting groove is communicated with a filling drilling pipeline, and a plurality of feeding ports are arranged outside the side wall of the upper part of the collecting groove; the guide plate is an arc plate, is obliquely arranged in the material collecting groove along the circumferential direction, and the high end of the guide plate is higher than the material inlet; the grid is arranged in the material collecting groove and is positioned below the lower end of the guide plate;

the tailing density adjusting device and the cementing material feeding bin are respectively communicated with the stirring devices, the discharge ends of the stirring devices are connected with feeding pipes, and outlets of the feeding pipes are converged into the material collecting groove in a tangential direction.

2. The filling system of claim 1, wherein: the material collecting groove comprises an upper cylinder and a lower cone; the cover is hinged to the top end of the cylinder.

3. The filling system of claim 2, wherein: the grating is a circular grating, the outer diameter of the circular grating is smaller than the inner diameter of the cylinder, the grating comprises a plurality of threaded steels which are uniformly distributed in a longitudinal and transverse mode, and the longitudinal distance and the transverse distance are both 50 mm-100 mm; the grating is arranged at the boundary of the cylinder and the cone.

4. The filling system of claim 1, wherein: the two guide plates are symmetrically arranged, and the high end of each guide plate is 5-10 mm higher than the feeding port.

5. The filling system of claim 2, wherein: the discharge ends of the feeding pipes and the inner wall of the cylinder at the upper part of the material collecting groove are arranged in a tangential downward inclination mode, the downward inclination angle of the feeding pipes is 0-45 degrees, and the feeding pipes are arranged outside the material collecting groove in an annular array mode.

6. The filling system of claim 1, wherein: the tailing thickening adjusting device is a deep cone thickener; the cementing material feeding bin is a cylindrical bin, and the bottom end of the feeding bin is a conical opening; the stirring device comprises a stirring cylinder and stirring paddles, two ends of the stirring cylinder are closed, the upper end of the stirring cylinder is provided with a pair of feeding holes, the lower end of the stirring cylinder is provided with a discharging hole, and the stirring paddles are coaxially arranged in the stirring cylinder and driven by a motor; the stirring devices are multiple and are connected in parallel, one feed inlet of each stirring device is communicated with the tailing density adjusting device, the other feed inlet of each stirring device is communicated with the cementing material feeding bin, and the discharge outlet of each stirring device is communicated with the collecting device through a feeding pipe.