SU992811A1 - Mortar pump - Google Patents

Description

(54) SOLUTION PUMP

The invention relates to pump engineering, in particular to pumps for pumping viscous and non-uniform liquids.

A mortar pump is known, comprising a housing with an actuator, working and compensating cylinders, each of which has a prism associated with the actuator, the working chamber of the working cylinder communicating with the discharge manifold and pipeline through the pressure valve, and the chamber of the compensation cylinder 11 directly.

A disadvantage of the known pump is the impossibility of introducing an additional component directly into the pumped solution, such as retarders or solution hardeners, plasticizing agents, and the like, which significantly limits the technical possibilities of using the pump.

The purpose of the invention is to ensure the introduction of an additional component directly into the pumped solution.

The goal is achieved by the fact that the pump is equipped with a tank and an additional metering controller

a component including a cylinder with a spring-loaded piston and an adjusting screw; the compensation cylinder on the drive side is provided with an additional cavity with a non-return valve communicating directly with the cylinder of the metering controller directly and with the container for the additional component through a non-return valve, and the piston

10 of the compensation cylinder is provided with a through channel and a pipe-type extension device attached to the piston with a non-return valve discharging into the discharge manifold. ,

15

In addition, the discharge pipeline is equipped with a mixing device, made in the form of blades installed at an angle to the flow axis and a pipeline section with a drastically changing cross section.

1 shows a rastoronasos, a longitudinal section; figure 2 is the same, the view in the plan.

Mortar pump contains corus 1

Claims (2)

25 in the form of two rigidly interconnected frames mounted on the base 2, the electric motor 3 installed in the central aperture of the housing 1, the gearbox 4, the crank pin 5, the connecting rod 6 and the rocker arm 7, the drive. Work 8 and compensation 9 cylinders, each of which has a piston 10 and 11, respectively, are connected with a drive by means of a rod 12 and 13, respectively. The working chamber 14 of the working cylinder 8 has a suction valve 15 and communicates directly with the discharge manifold 16 and the pipeline 17 through the discharge valve 18, and to the measure 19 of the compensation cylinder 9 directly. The pump is equipped with a tank (not shown) and an additional component dose control regulator, including a cylinder 20 with spring-loaded porin 21 and an adjusting screw 22. The compensation cylinder 9 on the drive side is provided with a cover 23 with an opening for the passage of the rod 13 to form an additional cavity 24 with a check valve 25 communicated with the cylinder 20 of the dosing regulator directly and with a tank for an additional component through the check valve 25. The piston 11 of the compensation cylinder 9 is equipped with a through channel 26 and is attached m to piston extension device in the form of non-return valve 27c of the pipe 28 exiting to the discharge collector 16. The discharge line 17 is provided with a mixing device designed as a set of blades at an angle to the flow axis 29 and pipe section 30 with rezkoizmen yu1dims section. Mortar works as follows. Under the action of the actuator, the pistons 10 and 11 make a reciprocating movement in the working 8 and compensating 9 cylinders, which leads to a periodical increase and decrease in the volume of the working 14 and compensatory 19 chambers, as well as an additional cavity 24. With an increase in the volume of the working chamber 14, it is filled with pumping The solution is pumped through the suction valve 15 (suction stroke), and when its volume is removed, the solution is displaced into the pressure ring 16 and Pipeline 17 (suction stroke). During the pumping stroke in the working chamber 14, the piston 11 of the compensation cylinder 9 moves in the opposite direction, increasing the volume of the compensation chamber 19 and reducing the volume of the additional cavity 24,. When the volume of the additional cavity 24 is reduced, an additional component from this cavity through the channel 26 in the piston 11, the pipe 27 and the check valve 28 is injected into the injection manifold 16, mixing with the solution being injected from the working chamber 14. Thus, the volumetric flow of the solution into The discharge pipe 17 is equal to the sum of the volumes displaced from the working chamber 14 and the additional cavity 24, minus the volume of the compensation chamber 19. The amount of the additional component is controlled by tightening the spring of the spring-loaded piston 21. The period of the suction stroke occurring in the working chamber 14 of the piston 11 of the compensation cylinder 9 moves in the direction of decreasing the volume of the compensation chamber 19 and increasing the volume of the additional cavity 24, while the pumped solution is displaced from the compensation chamber 19 into the discharge pipeline 17, at the same time an additional cavity 24 through valve 25 is filled with an additional component from the container. The volumetric flow of the pump during this cycle is equal to the volume of the compensation chamber 19. The pumped solution with the additional component introduced into it is additionally mixed when passing through the section of the pressure pipe with the blades 29 installed at an angle to the flow axis with the back-changing section. Further cycles are repeated. Thus, the proposed mortar pump introduces an additional component directly into the pumped solution, which significantly increases the technical capabilities of the mortar pump, and improves the quality of work, for example, when using a pump for applying plaster solutions. Claim 1. Mortar pump, comprising a housing with a drive, working and compensating cylinders, each of which "X" has a piston connected with a drive by means of a rod, the working chamber of the working cylinder communicating with the discharge manifold and pipeline through the discharge valve, and the compensation chamber cylinder directly, characterized in that, in order to ensure the introduction of an additional component directly into the pumped solution, it is provided with a container and a dosing regulator component, including a cylinder with a spring-loaded piston and an adjusting screw, compensation qi. lindra on the drive side is provided with an additional cavity with a reverse a valve connected to the metering cylinder of the metering unit directly and with the tank for the additional component through the check valve, and the piston of the compensation cylinder is provided with a through channel and an extension device attached to the piston in the form of a pipe with a check valve that goes to the discharge manifold. 2. Mortar pump according to claim 1, characterized in that the supercharger The pipeline is equipped with a mixing device, made in the form of blades installed at an angle to the flow axis and a section of the pipeline with a rapidly changing section. Information sources, taken into account in the examination 1. Shishulin Yu.P. and others. Machines for concrete and plastering works of the West German company Putzmeister ..  Lexing construction, 1974, W 3, p.26. fig.2.