A slurry shunting device special for mine filling

Abstract

This utility model discloses a slurry diversion device for mine backfilling, comprising a flange disc installed at the bottom of a discharge pipe. Multiple columns are fixedly connected to the bottom side wall of the flange disc, and a conical cylinder is fixedly connected between the bottom ends of the columns. The tip of the conical cylinder faces the bottom outlet of the discharge pipe. Multiple expansion rings with progressively increasing diameters are sequentially threaded to the bottom of the conical cylinder. A threaded ring is fixedly connected to the top of each expansion ring. Threaded ring grooves are formed at the bottom of both the conical cylinder and each expansion ring, and the threaded rings are threaded into these grooves. This utility model, through the multiple expansion rings with progressively increasing diameters sequentially threaded to the bottom of the conical cylinder, further increases the slurry falling area, preventing slurry accumulation at the pipe opening and making it less prone to forming a segregation layer.

Description

Technical Field

[0001] This utility model relates to the field of mine backfilling technology, and in particular to a special slurry diversion device for mine backfilling. Background Technology

[0002] Currently, the backfill aggregates used in mine backfill slurry (gravity-flow system) include cement, rod mill sand, crushed stone, and river sand. The backfill slurry preparation system mixes cement, rod mill sand, crushed stone, and river sand with water in a 1:4 ratio, and after stirring in a mixing tank, prepares a slurry with a concentration of 78%, which is then transported through pipelines to the underground goaf for backfilling.

[0003] However, the slurry will fall naturally at the end of the pipeline. After falling, the slurry is prone to accumulate in the goaf area, which will form a slurry segregation layer and seriously affect the filling quality. Utility Model Content

[0004] This invention provides a special slurry diversion device for mine backfilling to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A special slurry diversion device for mine backfilling includes a flange disc installed at the bottom of a discharge pipe. Multiple columns are fixedly connected to the bottom side wall of the flange disc. A conical cylinder is fixedly connected between the bottom ends of the multiple columns. The top tip of the conical cylinder faces the bottom outlet of the discharge pipe. Multiple expansion rings with gradually increasing diameters are sequentially threaded to the bottom of the conical cylinder. A threaded ring is fixedly connected to the top of each expansion ring. Threaded ring grooves are opened at the bottom of the conical cylinder and each expansion ring, and the threaded ring is threaded into the threaded ring groove.

[0007] Preferably, the surfaces of the conical cylinder and the expansion ring are provided with a wear-resistant and non-stick coating to reduce slurry adhesion and improve diversion efficiency.

[0008] Preferably, the column, the conical cylinder, and the expansion ring are all made of stainless steel.

[0009] Preferably, the conical cylinder is welded to the bottom of the three columns.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] The device is reasonably designed. It uses multiple expansion rings with gradually increasing diameters that are connected in sequence by threads at the bottom of the conical cylinder to further increase the slurry falling area, thereby avoiding the accumulation of slurry at the pipe opening and making it difficult for the slurry to form a segregation layer.

[0012] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the structure of a special slurry diversion device for mine backfilling proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of a special slurry diversion device for mine filling proposed in this utility model, installed on a discharge pipeline;

[0016] Figure 3 This is a schematic diagram of the structure of a slurry diversion device for mine filling proposed in this utility model, showing the separation of multiple expansion rings.

[0017] Figure 4 This is a front view cross-sectional structural diagram of a slurry diversion device for mine filling proposed in this utility model.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1. Flange disc; 2. Column; 3. Conical cylinder; 4. Expansion ring; 5. Discharge pipe; 6. Threaded ring; 7. Threaded ring groove. Detailed Implementation

[0020] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described in more detail below by way of example with reference to the accompanying drawings. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] Please see Figures 1-4 In this embodiment of the utility model, a special slurry diversion device for mine filling includes a flange disc 1 installed at the bottom of the discharge pipe 5. The flange disc 1 is connected to the bottom of the discharge pipe 5 by multiple bolts. Three columns 2 are fixedly connected to the bottom side wall of the flange disc 1. A conical cylinder 3 is welded and fixedly connected between the bottom ends of the three columns 2. The top tip of the conical cylinder 3 faces the bottom outlet of the discharge pipe 5. The columns 2, the conical cylinder 3 and the expansion ring 4 are all made of stainless steel to enhance durability and stability.

[0023] The bottom of the conical cylinder 3 is connected by a series of expansion rings 4 with gradually increasing diameters. The top of each expansion ring 4 is fixedly connected with a threaded ring 6. The bottom of the conical cylinder 3 and each expansion ring 4 is provided with a threaded ring groove 7. The threaded ring 6 is threadedly connected in the threaded ring groove 7, so that the multiple expansion rings 4 can be detachably connected in sequence.

[0024] Specifically, the surfaces of the conical cylinder 3 and the expansion ring 4 are coated with a Teflon wear-resistant and non-stick coating to reduce slurry adhesion and improve diversion efficiency.

[0025] The working principle of this utility model is as follows:

[0026] After passing through the flange disc 1, the filling slurry flows into the conical cylinder 3 and out along the surface of the conical cylinder 3 and the surfaces of the expansion rings 4 connected in sequence. This greatly increases the area on which the slurry falls at the end of the pipeline, making it less likely for the slurry to accumulate and form a segregation layer, thus significantly improving the filling quality. The size of the slurry outflow area can be adjusted by installing different numbers of expansion rings 4.

[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A special slurry diversion device for mine backfilling, comprising a flange disc (1) installed at the bottom of a discharge pipe (5), characterized in that, The flange disc (1) has multiple columns (2) fixedly connected to its bottom side wall. A conical cylinder (3) is fixedly connected between the bottom ends of the multiple columns (2). The top tip of the conical cylinder (3) faces the bottom outlet of the discharge pipe (5). Multiple expansion rings (4) with gradually increasing diameters are sequentially threaded to the bottom of the conical cylinder (3). A threaded ring (6) is fixedly connected to the top of each expansion ring (4). A threaded ring groove (7) is opened at the bottom of the conical cylinder (3) and each expansion ring (4). The threaded ring (6) is threadedly connected in the threaded ring groove (7).

2. The slurry diversion device for mine backfilling according to claim 1, characterized in that, The surfaces of the conical cylinder (3) and the expansion ring (4) are provided with a wear-resistant and non-stick coating.

3. The slurry diversion device for mine backfilling according to claim 1, characterized in that, The column (2), the conical cylinder (3) and the expansion ring (4) are all made of stainless steel.

4. The slurry diversion device for mine backfilling according to claim 1, characterized in that, The conical cylinder (3) is welded to the bottom of the three columns (2).

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