Multi-bin parallel continuous high-concentration stable sand discharging device
By designing a multi-storey parallel continuous high-concentration stable sand release device, the problems of low sand deposition rate and large overflow in goaf backfill are solved in traditional sand release equipment, and efficient tailings utilization and improvement of goaf backfill efficiency are achieved.
Patent Information
- Application Number
- CN202421512184.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-06-28
AI Technical Summary
During the continuous sand release process, traditional sand release equipment is prone to problems such as low sand sinking rate, large overflow, large tail discharge, and low tail sand utilization rate, resulting in low backfill efficiency in goaf.
A multi-storey parallel continuous high-concentration stable sand release device is designed, including multiple sand bins, adjustment barrels, meters, flow meters and filling pipes. High-concentration stable sand release is achieved through a multi-storey parallel slurry system.
It has achieved rapid mixing of tailings mortars in different sand tanks, and improved the actual sand deposition rate, actual sand release concentration and tailings utilization rate, which is suitable for the backfill and sand release requirements of goaf with large flow and high volume for a long time.
Smart Images
Figure CN222542498U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of backfilling of goaf areas, and in particular relates to a multi-bin parallel continuous high-concentration stable sand placing device. Background Art
[0002] One of the important steps in full-mine backfill mining is to deliver backfill materials such as tailings to the goaf. It is usually necessary to establish a backfill preparation station, which consists of systems such as sand storage, sand discharge, automatic control, water supply, and water treatment underflow discharge. Due to the large amount of sand released, continuous sand release by traditional sand release equipment will lead to problems such as low sand settling rate, large overflow, large tailing discharge, and low tailing utilization rate. Therefore, only natural sand settling and intermittent alternating backfilling can be used. For this reason, it is very necessary to develop a multi-bin parallel continuous high-concentration stable sand release device that can solve the above problems. Utility Model Content
[0003] The utility model aims to provide a multi-bin parallel continuous high-concentration stable sand placing device.
[0004] The purpose of the utility model is achieved in this way, including a first sand bin, a second sand bin, a regulating barrel, a regulating valve, a first concentration meter, a first flow meter, a first filling pipe, a second concentration meter, a second flow meter, and a second filling pipe, the first sand bin has two, the second sand bin has four, the bottoms of the first sand bin and the second sand bin are respectively connected to the regulating barrel through the first filling pipe, and the first filling pipe is sequentially provided with a regulating valve, a first concentration meter, and a first flow meter, the bottom of the regulating barrel is provided with a second filling pipe, the second filling pipe is sent to the underground goaf, and the second filling pipe is sequentially provided with a second concentration meter and a second flow meter;
[0005] The bottom of the regulating barrel is conical; the discharge ends of the first filling pipes corresponding to the two first sand bins extend from the upper side of the regulating barrel into the regulating barrel, and the discharge ends are close to the inner wall of the regulating barrel and face downward; the discharge end of the first filling pipe corresponding to one of the second sand bins extends from the lower side of the regulating barrel into the regulating barrel, and the discharge end is close to the inner wall of the regulating barrel, and the discharge end is horizontally facing the inner wall of the regulating barrel; the discharge ends of the first filling pipes corresponding to the remaining three second sand bins extend from the conical surface of the bottom of the regulating barrel into the regulating barrel, and the discharge ends are horizontally facing the axis of the center of the bottom of the regulating barrel, and the discharge ends of the three first filling pipes are equidistant; the discharge end of the first filling pipe located on the conical surface of the bottom of the regulating barrel is close to the discharge end of the first filling pipe located at the lower side of the regulating barrel, and the jet direction of the discharge end of the first filling pipe located at the lower side of the regulating barrel is not blocked by the discharge ends of the remaining first filling pipes;
[0006] A video liquid level detection device is provided in the regulating barrel. The video liquid level detection device is a device that monitors the liquid level through video and is well known to technicians in this field. Its installation position can be higher in the regulating barrel. As long as it can monitor the liquid level normally, these are common knowledge in the field.
[0007] Preferably, the first sand bin is a Φ7m sand bin, the second sand bin is a Φ9m sand bin, the regulating barrel has a diameter of 3000mm and a height of 2500mm, the first filling pipe has a specification of Φ120×8+5mm, and the second filling pipe has a specification of Φ168×8+5mm.
[0008] Preferably, the first sand bin and the second sand bin are reinforced concrete structures, the regulating barrel is made of steel, the first filling pipe and the second filling pipe are made of steel, and a polyurethane layer may be further provided inside.
[0009] The beneficial effects of the utility model are as follows: the utility model can quickly mix the tailings slurry of different sand bins, and cooperate with the slurry feeding system of multiple bins in parallel to realize continuous high-concentration and stable sand release from multiple bins in parallel. It is very suitable for the needs of large-flow, high-volume and long-term backfilling and sand release in goafs. The actual sand settling rate, actual sand release concentration and tailings utilization rate are effectively improved, providing a strong guarantee for the implementation of full-mine filling mining. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the structure of the utility model;
[0011] Figure 2 The figure is a schematic diagram of the internal structure of the regulating barrel from a top view;
[0012] In the figure: 1-first sand bin, 2-second sand bin, 3-adjusting barrel, 4-adjusting valve, 5-first concentration meter, 6-first flow meter, 7-first filling pipe, 8-second concentration meter, 9-second flow meter, 10-second filling pipe. DETAILED DESCRIPTION
[0013] The present invention is further described below in conjunction with the embodiments and drawings, but the present invention is not limited in any way. Any changes or substitutions made based on the teachings of the present invention belong to the protection scope of the present invention.
[0014] Example
[0015] As attached Figure 1~Figure 2As shown, the multi-bin parallel continuous high-concentration stable sand release device of this embodiment includes a first sand bin 1, a second sand bin 2, a regulating barrel 3, a regulating valve 4, a first concentration meter 5, a first flow meter 6, a first filling pipe 7, a second concentration meter 8, a second flow meter 9, and a second filling pipe 10. There are two first sand bins 1, and four second sand bins 2. The bottoms of the first sand bin 1 and the second sand bin 2 are respectively connected to the regulating barrel 3 through the first filling pipe 7, and the first filling pipe 7 is sequentially provided with the regulating valve 4, the first concentration meter 5, and the first flow meter 6. The bottom of the regulating barrel 3 is provided with a second filling pipe 10, and the second filling pipe 10 is sent to the underground goaf. The second filling pipe 10 is sequentially provided with a second concentration meter 8 and a second flow meter 9;
[0016] The bottom of the regulating barrel 3 is conical; the discharge ends of the first filling pipes 7 corresponding to the two first sand bins 1 extend from the upper side of the regulating barrel 3 into the regulating barrel 3, and the discharge ends are close to the inner wall of the regulating barrel 3 and face downward; the discharge end of the first filling pipe 7 corresponding to one of the second sand bins 2 extends from the lower side of the regulating barrel 3 into the regulating barrel 3, and the discharge end is close to the inner wall of the regulating barrel 3, and the discharge end is horizontally facing the inner wall of the regulating barrel 3; the discharge ends of the first filling pipes 7 corresponding to the remaining three second sand bins 2 extend from the conical surface of the bottom of the regulating barrel 3 into the regulating barrel 3, and the discharge ends are horizontally facing the axis of the center of the bottom of the regulating barrel 3, and the discharge ends of the three first filling pipes 7 are equally spaced; the discharge ends of the first filling pipe 7 located on the conical surface of the bottom of the regulating barrel 3 The material end is close to the discharge end of the first filling pipe 7 located at the lower part of the side of the regulating barrel 3, and the jet direction of the discharge end of the first filling pipe 7 located at the lower part of the side of the regulating barrel 3 is not blocked by the other discharge ends of the first filling pipe 7; a video liquid level detection device is provided in the regulating barrel 3; the first sand bin 1 is a Φ7m sand bin, the second sand bin 2 is a Φ9m sand bin, the regulating barrel 3 has a diameter of 3000mm and a height of 2500mm, the first filling pipe 7 has a specification of Φ120×8+5mm, and the second filling pipe 10 has a specification of Φ168×8+5mm; the first sand bin 1 and the second sand bin 2 are reinforced concrete structures, the regulating barrel 3 is made of steel, and the first filling pipe 7 and the second filling pipe 10 are made of steel;
[0017] The multi-bin parallel continuous high-concentration stable sand release device of this embodiment is used for backfilling the goaf of a mine in Yunnan, where the total volume of the sand bin is 5120m 3 , filling capacity 3000~3200m 3 / d; the tailings in the sand bin are 200 mesh tailings particles; the second filling pipe filling pipeline passes through the second phase tailings filling air inlet inclined shaft to enter the middle filling level filling goaf; after 72 hours of continuous sand discharge observation, the sand discharge flow and concentration are stable, the actual sand settling rate is increased to 70%, and the actual sand discharge concentration is increased to 69%.
[0018] The working principle and working process of the utility model are as follows: the first sand bin 1 and the second sand bin 2 are filled with tailings mortar, the flow rate is adjusted by the regulating valve 4, and the tailings mortar is sent into the regulating barrel 3; wherein, the mortar of the first sand bin 1 is poured out from the top of the regulating barrel 3 close to the barrel wall, and the mortar of one of the second sand bins 2 is ejected from the bottom of the side of the regulating barrel 3 along the barrel wall direction, so that the barrel mortar forms a vortex, and the mortars of the other three second sand bins 2 are fed from the conical surface at the bottom of the regulating barrel 3 and directly sent to the center of the conical part of the regulating barrel 3; this method of feeding the mortar of the first sand bin 1 from the top and close to the barrel wall and the method of feeding the mortar from the bottom of the second sand bin 2 can quickly mix the tailings mortars of different sand bins, and send the mortar into the underground goaf through the second filling pipe 10; realize multi-bin parallel continuous high-concentration stable sand release, which is very suitable for the backfilling and sand release needs of goafs with large flow and high volume.
Claims
1. A multi-bin parallel continuous high-concentration stable sand discharge device, comprising a first sand bin (1), a second sand bin (2), a regulating barrel (3), a regulating valve (4), a first concentration meter (5), a first flow meter (6), a first filling pipe (7), a second concentration meter (8), a second flow meter (9), and a second filling pipe (10), characterized in that There are two first sand bins (1) and four second sand bins (2); the bottoms of the first sand bins (1) and the second sand bins (2) are connected to the regulating barrel (3) through first filling pipes (7) respectively, and the first filling pipes (7) are sequentially provided with a regulating valve (4), a first concentration meter (5), and a first flow meter (6); a second filling pipe (10) is provided at the bottom of the regulating barrel (3); the second filling pipe (10) is sent to the underground goaf, and the second filling pipe (10) is sequentially provided with a second concentration meter (8) and a second flow meter (9); The bottom of the regulating barrel (3) is conical; the discharge ends of the first filling pipes (7) corresponding to the two first sand bins (1) extend from the upper side of the regulating barrel (3) into the regulating barrel (3), and the discharge ends are close to the inner wall of the regulating barrel (3) and face downward; the discharge end of the first filling pipe (7) corresponding to one of the second sand bins (2) extends from the lower side of the regulating barrel (3) into the regulating barrel (3), and the discharge end is close to the inner wall of the regulating barrel (3) and faces horizontally toward the inner wall of the regulating barrel (3); the discharge ends of the first filling pipes (7) corresponding to the remaining three second sand bins (2) extend from the lower side of the regulating barrel (3) into the regulating barrel (3), and the discharge end is close to the inner wall of the regulating barrel (3) and faces horizontally toward the inner wall of the regulating barrel (3). The discharge end of a filling tube (7) extends from the conical surface of the bottom of the regulating barrel (3) into the regulating barrel (3), and the discharge end is horizontally oriented toward the axis of the center of the bottom of the regulating barrel (3), and the discharge ends of the three first filling tubes (7) are equally spaced; the discharge end of the first filling tube (7) located at the conical surface of the bottom of the regulating barrel (3) is close to the discharge end of the first filling tube (7) located at the lower part of the side of the regulating barrel (3), and the discharge direction of the discharge end of the first filling tube (7) located at the lower part of the side of the regulating barrel (3) is not blocked by the discharge ends of the other first filling tubes (7); A video liquid level detection device is provided in the regulating barrel (3).
2. The multi-chamber parallel continuous high-concentration stable sand release device according to claim 1 is characterized in that The first sand bin (1) and the second sand bin (2) are reinforced concrete structures, the regulating barrel (3) is made of steel, and the first filling pipe (7) and the second filling pipe (10) are made of steel.