CN105863728A - High-speed slurry making device for mine filling station - Google Patents

Abstract

The invention proposes a high-speed slurry-making device for a mine filling station, which includes a cylinder body, the cylinder body includes a top straight section, a middle cone section and a bottom cone section, and the head and tail ends of the middle cone section are connected with the top straight section and the bottom cone section. The junction of the cylinder section is arc-shaped transition, and the lower part of the top straight cylinder section close to the middle cone section is embedded with a ring-shaped speed-stabilizing tube along the circumference. Several booster tubes are evenly spaced along the circumferential direction, and the booster tubes are connected with the barrel. The invention can effectively improve the speed and stability of pulp making.

Description

A high-speed pulping device for a mine filling station

technical field

The invention belongs to the technical field of underground mine tailings filling, and in particular relates to a high-speed slurry-making device for a mine filling station.

Background technique

In the known technical field, tailings are one of the main solid wastes in mines, and tailings treatment is an important link in mine production. In recent years, under the pressure of the environment and safety, to reduce the impact on surface buildings, reduce the occurrence of geological disasters, and achieve the goals of green mines, environmentally friendly mines, and waste-free mining, most underground mines adopt tailings filling mining methods.

The filling station is the core project of the filling system, and the design units, research units, and mines have all paid attention to and studied its technology. Since the tailing sand is deposited as saturated sand in the vertical sand bin, if it can flow out from the sand discharge pipe, slurry must be made first to make it fluidized. The concentration of mortar determines the concentration of slurry, and the concentration of slurry directly affects the quality of filling body and the safety and stability of filling gobs. The level of mortar concentration not only affects the smoothness of filling pipelines, but also reduces the use of gelling. Materials, a key factor in reducing costs.

Tailings pulping is generally completed by installing high-pressure wind and water pipes inside the sand bin to make slurry. During filling operations, the tailings pulping system activates the tailings slurry in the sand bin, and flows to the mixing system to mix evenly with the cement released from the cement bin. And through the filling borehole, it flows to the underground filling pipe network for filling. In the tailings slurry making process, the structure and quality of the slurry nozzle is the key to the success of the tailings slurry fluidization in the vertical sand bin. The nozzle is the core technology to determine the concentration of the mortar, and also the key technology to solve the fluidity of the sand. When the vertical sand bin technology was introduced from abroad, due to the structure of the nozzle, the degree of understanding of the mechanism of tailing sand release, and the misleading operation, the nozzle was blocked and damaged seriously during the operation of the filling system. There are fewer and fewer ways to combine wind and water activation, and high-pressure water is generally used to liquefy tailings, so a slurry-making device with uniform mixing, high speed and stability is needed.

Contents of the invention

The technical problem to be solved by the present invention is to provide a high-speed pulping device for a mine filling station to improve the speed and stability of pulping in view of the above existing problems.

The technical solution adopted by the present invention to solve the above technical problems is: a high-speed slurry-making device for a mine filling station, which is characterized in that it includes a cylinder, and the cylinder includes a top straight section, a middle cone section and a bottom cone section , the first and last ends of the middle cone section and the junction of the top straight section and the bottom cone section have a circular arc transition, and the lower part of the top straight section close to the middle cone section is embedded with a ring-shaped speed-stabilizing tube along the circumference , the inner surface of the velocity-stabilizing tube communicates with the top straight tube section along the circumferential direction, and the outer wall of the bottom conical tube section is evenly spaced along the circumferential direction with several booster tubes, and the booster tubes communicate with the cylinder body.

According to the above scheme, a wear-resistant washer is provided on the inner wall of the bottom cone section below the opening end of the booster pipe, and the inner surface of the wear-resistant washer transitions smoothly with the open end of the booster pipe, and the wear-resistant washer is formed by There is a circular arc transition from top to bottom, and the thickness increases from top to bottom. The bottom surface of the wear-resistant gasket is flush with the bottom surface of the bottom cone section.

According to the above solution, the number of the booster tubes is greater than or equal to four.

According to the above solution, the annular velocity stabilizing pipe is connected to the top straight section by welding.

According to the above solution, the wear-resistant washer is made of polyurethane.

The beneficial effects of the present invention are: 1. Provide a high-speed slurry-making device for a mine filling station, which has a simple structure and a reasonable design. The mortar can form a clockwise or counterclockwise turbulent flow through the steady-speed annular tube, and keep entering the tapered section. Stability and consistency; 2. Secondary injection of mortar through a booster pipe to increase the outlet pressure, thereby increasing the rate.

Description of drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Among them: 1. Top straight section, 2. Middle cone section, 3. Bottom cone section, 4. Steady speed tube, 5. Booster tube, 6. Wear-resistant gasket.

detailed description

In order to better understand the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Figure 1, a high-speed slurry-making device for a mine filling station includes a cylinder body. The cylinder body includes a top straight cylinder section 1, a middle cone cylinder section 2 and a bottom cone cylinder section 3. The first and last ends of the middle cone cylinder section are connected to The junction of the top straight barrel section and the bottom cone section has a circular arc transition, and the lower part of the top straight barrel section near the middle cone section is embedded with an annular velocity-stabilizing tube 4 along the circumference and connected by welding. The inner surface of the velocity-stabilizing tube is connected to the The top straight section is connected along the circumferential direction, and the outer wall of the bottom cone section is evenly spaced along the circumferential direction with several booster tubes 5, the number of booster tubes is greater than or equal to four, and the booster tubes are connected with the barrel.

A wear-resistant washer 6 is provided on the inner wall of the bottom cone section below the open end of the booster pipe. The inner surface of the wear-resistant washer transitions smoothly with the open end of the booster pipe. It increases from top to bottom, and its bottom surface is flush with the bottom surface of the bottom cone section.

The junction of the speed-stabilizing pipe and the top straight section enables the mortar to form a clockwise or counterclockwise disturbed flow, maintaining the stability and consistency of entering the lower tapered section. On the other hand, through the booster pipe, the mortar is injected twice. Increase the cylinder outlet pressure, thereby increasing the rate.

The wear-resistant washer is made of polyurethane to protect the inner wall of the bottom cone section and prevent discharge wear. The wear-resistant washer has a structure with increasing thickness from top to bottom, which has the functions of stabilizing flow and preventing backflow.

Claims (5)

1. the high-speed mud making device at a filling in mine station, it is characterised in that include cylinder, described cylinder include top direct tube section, Middle part conical cylinder section and bottom conical cylinder section, the head and the tail two ends of described middle part conical cylinder section and described top direct tube section and the company of bottom conical cylinder section Connecing place's arc transition, direct tube section bottom, top is circumferentially embedded with annular speed stabilizing pipe, described speed stabilizing near the position of middle part conical cylinder section The medial surface of pipe circumferentially connects with top direct tube section, and bottom conical cylinder section outer wall circumferentially uniform intervals is provided with several pressure inlet, Described pressure inlet connects with cylinder.

2. according to the high-speed mud making device at a kind of filling in mine station described in the claims 1, it is characterised in that described bottom The lower section being positioned at described pressure inlet opening on the inwall of conical cylinder section is provided with wear washer, the medial surface of described wear washer and supercharging The opening of pipe seamlessly transits, wear washer arc transition from top to bottom, and thickness is incremented by from top to bottom, the bottom surface of wear washer with The concordant setting in bottom surface of described bottom conical cylinder section.

The high-speed mud making device at a kind of filling in mine station the most according to claim 1, it is characterised in that described pressure inlet Number is more than or equal to four.

The high-speed mud making device at a kind of filling in mine station the most according to claim 1, it is characterised in that described annular speed stabilizing Pipe is weldingly connected with described top direct tube section.

The high-speed mud making device at a kind of filling in mine station the most according to claim 2, it is characterised in that described wear washer It is made up of polyurethane.