SU1411490A1 - Concrete feed and shotcreting pump - Google Patents

Abstract

The invention relates to devices for securing mine workings with concrete and m. used in the repair and construction of thermal metallurgical units, as well as in mining, road and hydraulic engineering. The goal is to increase the reliability and performance of the work, noting that the equilibrium supply of begon to the concrete pipeline is equal. Under the container I for concrete, installed vertically, a sleeve (D) 10, made in the form of a double-walled container, is fixed with the possibility of their separation. G 10 is connected with betonovodom (BV) 3 in its lower f (L

Description

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parts, in the upper side of the G 10 is connected by pipeline 14 with a container 15 for water, in which the stem (Ø) is installed with the drive. Capacity 1 is vertically mounted Ø 6, the upper end of which is connected to a drive 12J interacting with a capacity drive 15. Two mirrored blades 8 are hingedly attached to the bottom end Ø 6 and the free ends of which are placed in Г 10. The inner walls of Г 10 are made channels 13 with a slope in the direction of BV .3. Melsda is the last and G 10 is connected

with BV 3 adapter 1 with non-return ball valve 17. The output end of BV 3 has a nozzle 4 with a pipeline 5 of compressed air. With the movement of Ш 6 upwardly blades 8, interacting with concrete, they are in contact with each other. At this time, concrete is loaded into G 10. When W 6 moves down, the blades 8, interact with the advanced concrete, diverge to the side and interact with G 10 and the concrete closed in it. Concrete is pushed through BV 3 and then into nozzle 4 and onto the surface of the excavation. 1 hp f-ly, 2 ill.

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The invention relates to devices for securing the mine workings with concrete, laid for formwork or without a deck by the method of spraying, and can be used in the repair and construction of thermal metallurgical units, as well as in mine, road and hydraulic engineering.

The purpose of the invention is to ensure reliable, rhythmic, productive work due to the uniform supply of concrete to the concrete pipe.

Fig. I shows a concrete pump, a general view; figure 2 - section aa in figure 1.

Concrete pump for supplying and splashing concrete consists of a cone tank 1 for concrete, a pump 2, a concrete pipe 3, a nozzle 4 with a pipe 5 of compressed air. The pump 2 is made of a rod 6 vertically installed in the tank 1, to the end of which, by means of the axes 7, two mirrored blades 8 are pivotally attached, equipped with stops 9 and placed in the sleeve 10, equipped with a tapered adapter 11 connected to the concrete bridge 3. The concrete pump is located vertically, connected to the lower part of the tank 1 and equipped with a drive 12. In the sleeve 10, channels 13 are made, tilted towards the concrete channel 3. Channels 13 are connected by a pipeline (high-pressure line 14) to supply the solution to a tandem or water tank. 15 for water, while the injection device 16 of the high-pressure main 15 is connected to the drive 12 of the pump 2. Below the conical adapter P is the return. ball valve with upper saddle 17.

The sleeve 10 is made of. several parts and is removable. To prevent concrete mixture from entering the chamber formed by the sleeve 10 and the pump body 2, the sleeve 10 is from the side

the camera may be covered with a cloth, such as synthetic.

The device for feeding and spraying concrete works as follows. The ready-mixed concrete is loaded into the container 1. When the pump 2 is running, its rod 6 performs reciprocating movements.

When the rod 6 moves upwards, the blades 8, interacting with the concrete, are displaced to the longitudinal axis and contact each other with the stops 9, which provide them with a position oriented relative to the vertical axis. At the same time, the concrete is loaded into the sleeve 10. When the rod 6 moves downward of the blade 8, we interact with the concrete that has advanced downwards under the weight of concrete: it weighs to the side and interacts with

sleeve 10 and closed in her concrete.

Concrete is pushed into betonovod 3 and further into nozzle 4, from which the mixture is applied with compressed air to the surface, for example, of a mine working. In tact with the pump 2, the injection device 16 operates, which delivers the solution into the water or through the high-pressure line 14 from the tank 15 and the channels 13 to the walls of the sleeve 10,

The pressure of the solution in the thrust or the thieves in the high-pressure line 14 exceeds the pressure in the mixture when it is pushed, which ensures that the inner surface of the sleeve 10 is constantly wetted by the stirrer or water and improves the working conditions of the blades 8 and sleeves 10.

The capacity of the injection device 16 can be adjusted depending on the state of the concrete mix and the range of transportation of the concrete, Obdor valve. 17 eliminates the return movement of the mixture and air breakthrough. .

Claims (2)

1. A concrete pump for feeding and filling concrete, including a drive, a tank for concrete, installed vertically, and a sleeve, fixed under the tank for concrete with disconnecting them, and connected to the concrete in the lower part of it, and in the upper side part, connected to the water tank in which the actuator stem is installed, characterized in that, in order to increase reliability, productivity due to uniform supply of concrete to the concrete pipeline, the container for concrete is provided with a rod vertically installed in it, the upper end of which is connected to the drive, which is acted upon by a rod for water, and bottom liBNiy end of a pair of two mirrored blades, the free ends of which are placed in a sleeve, which is made in the form of a double-walled container, and in the inner walls are made channels tilt them towards concrete yes. 2. Concrete pump according to claim 1, from l and h and y with the fact that it is equipped with an adapter with a non-return ball valve, and the output end of the concrete pipe has a nozzle with a compressed air pipeline, and the adapter is located between the concrete pipe and the sleeve and is connected to . 13 sri9.2.