SU1105427A1 - Arrangement for conveying slurry - Google Patents

Abstract

A HYDRAULIC TRANSPORT DEVICE, containing a supply tank, is connected via an intake pipe to a shut-off valve controlled by a pneumatic cylinder, a pump connected through a shut-off valve to a storage tank, water and air lines with locking elements, and a valve equipped with a normally open non-return valve and installed between the shut-off organ and the said mains, characterized in that, in order to increase productivity and simplify operation, it is provided with an additional pneumatic a cylinder whose rod and piston cavities communicate with the piston and rod cavities of the first pneumatic cylinder, a control valve controlled by an additional pneumatic cylinder and installed between the locking member and the valve, and a reverse normally closed valve installed between the gate and the locking element of the air line. (L cd 4 to

Description

The invention relates to transportation and can be used to transport slurries, mainly cement mortars, to consumption points. A device for transporting hydromixes is known, which contains a supply tank, through an intake pipe connected to a shut-off organ controlled by a pneumatic cylinder, a pump connected through a shut-off organ to the supply tank, water and air lines with locking elements, and a shutter equipped with a normally open check valve and installed between the shut-off organ and the indicated main lines. The disadvantages of this device are the need to fill the valve with water at the beginning of each pumping cycle drosmesey, wherein the predetermined volume of water in postupivschey valve must be fixed dispenser or other device, as water may enter the pump and break water-cement sootnoschenie pumped solution; decrease in pumping performance, since with insufficient amount of water entering the gate, air leakage is possible; the introduction of additional devices in the device that register the filling of the dispenser with water; increased metal consumption of the device. The aim of the invention is to increase productivity and simplify operation of the device. The goal is achieved by the fact that a device for transporting hydromixes, containing a supply tank, is connected to a shut-off body controlled by a pneumatic cylinder, a pump connected through a shut-off organ to the supply tank, water and air lines with locking elements, and a shutter equipped normally open check valve and installed between the shut-off organ and the above-mentioned main pipelines, is equipped with an additional pneumatic cylinder, the stem and norshnev cavity of which obsheny respectively with piston and rod cavities of the first air cylinder, a control valve controlled by a pneumatic cylinder and dogyulnitelnym established between the locking body and the gate, and a normally closed reflux valve located between the shutter and the closing element air line. FIG. 1 schematically shows a device for pumping a solution; in fig. 2 - view of the device when the solution is displaced from the solution line with water. The device for transporting slurries contains a supply tank 1 with a suction pipe 2 and with a shut-off body 3, controlled by a pneumatic cylinder 4, a pump 5, a water 6 and an air supply 7 line with shut-off elements 8 and 9, a shutter 10 installed between the locking body 3 and the water b and aerial 7 highway. The shutter 10 is provided with a pneumatic cylinder 11 with a control valve 12, through the saddle 13 of which the working cavities of the shutter 10 and the locking member 3 are interconnected. The piston and stem cavities of the pneumatic cylinder 4 of the valve body 3 are respectively communicated with the rod and piston cavities of the pneumatic cylinder 11 and the bolt 10. Between the locking elements 8 and 9 and the bolt 10, a normally closed non-return valve 14 is installed. The flow container 1 is equipped with a stirring bar 15, and the intake port 2 - a mesh filter 16. In the shut-off organ 3, a shut-off valve 17 is installed, controlled by a pneumatic cylinder 4. The cavity of the pump 5 is communicated through the discharge port 18, the solvent pipe 19 and the dispensing tip 20 with the receiving capacitor Strongly 21. The locking member 9 is equipped with pipe 22 with a normally open check valve 23. The device operates as follows. The prepared solution is poured into the supply tank 1 and stirred by the stirring body 15, which prevents the separation of the solution. The pump 5 through the intake pipe 2 takes the solution. In the shut-off organ 3, the shut-off valve 17 is moved by the pneumatic cylinder 4 to the extreme left position, and the control valve 12 is switched by the pneumatic cylinder 11 to the lower position. The distribution valve 12 closes and the valve 17 opens synchronously, since the piston and rod cavities of the pneumatic cylinder 4 of the locking member 3 are respectively communicated with the rod and piston cavity of the pneumatic cylinder 11. The locking elements of the air supply 8 and water 9 are in the closed position. Then the solution from the pump 5 through the discharge port 18, the mortar 19 and the dispensing tip 20 enters the receiving tank 21. When pumping the solution, the control valve 12 hermetically isolates the working cavities of the shut-off valve of the valve body 3 10. If the shut-off valves 8 and 9 fail, water and air leakage discharged to the atmosphere through a normally open non-return valve 23, which is closed only when the shut-off valves 8 and 9 are open. After the entire solution is pumped out of the supply tank 1, the solution is displaced into ode from mortar

19. At the same time, the shut-off valve 17 is moved to the extreme right position and overlaps the cross section of the intake manifold 2. Simultaneously, the control valve 12 is brought to the extreme upper position and the working cavities of the locking member 3 and the shutter 10 are communicated. Then the shut-off element 9 and water enters through the pipe 22, the shutter 10, the valve body 3 into the pump 5, which pumps water into the solution line 19, and the solution is forced out of it.

When displacing the solution with water in the cavity of nozzle 22, valve 10 and valve 3, the pressure increases and the normally open non-return valve 23 closes, preventing water leakage, and the normally closed non-return valve 14 prevents water from entering through the closure element 8 into the air line 7.

If emergency displacement of the solution from the device is necessary, the shut-off valve 17 is moved to the extreme right position and overlaps the intake section

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pipe 2, and the dispensing valve 12 simultaneously moves to the extreme upper position and provide a message to the cavities of the valve body 3 and the gate 10.

The locking element 9 closes and opens the locking element 8. Through the check valve 14, the working cavities of the shutter 10 and the locking member 3, the compressed air flows through the valves of the pump 5 into the solution line 19, from which the remaining solution or water is displaced.

The valves of the pump 5 freely pass water and air in the direction from the suction cavity to the discharge.

The use of the proposed device will improve the performance of the device; simplify device operation management; reduce the metal consumption of equipment and prevent water from entering the air line, which ensures a normally closed non-return valve.

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Claims (1)

A HYDRAULIC MIXTURE TRANSPORTATION DEVICE containing a supply tank, through an intake pipe connected to a shut-off element controlled by a pneumatic cylinder, a pump connected through a shut-off element to a supply tank, water and air lines with shut-off elements, and a shutter equipped with a normally open non-return valve and installed between the locking body and these highways, characterized in that, in order to increase productivity and simplify operation, it is equipped with additional pneumocilin set, and a piston rod chamber which communicated respectively with the piston and rod of the first air cylinder cavities, the control valve, and a controlled additional air cylinder arranged between the locking body and the gate, and a normally closed reflux valve located between the gate and the locking element _with air magist- sake. SS