SU1047701A1 - Installation for activating cement suspension - Google Patents

Abstract

INSTALLATION FOR ACTIVATION OF CEMENT SUSPENSION, containing a hermetic tank mounted on shock absorbers with a vibrator, connected to a vacuum source, a radiator coaxially placed in the tank as a vertical teflon tube with a piezoceramic transducer surrounding it, installed in the chamber below. The radiator has a horizontal partition with a central hole, an inlet and an outlet branch pipe, characterized in that, in order to increase the degree of activation, the installation is equipped with a branch pipe for connection to the pressure source of the upper part of the container, installed under the partition hole with a nozzle at the end, mounted under the latter a reflector and a multi-rod cavity covering the nozzle and the reflector. (L tt O 4

Description

The invention relates to construction equipment, in particular to installations for activating cement and obtaining cement slurry.

Closest to the invention is an installation for activating a cement slurry containing a sealed container with a vibrator mounted on shock absorbers, connected to a vacuum source, a radiator coaxially placed in the tank, in the form of a vertical Teflon tube 1 with a piezoceramic transducer surrounding it, mounted in a chamber under radiator horizontal partition with a central hole, inlet and outlet pipes [1].

A disadvantage of the known installation is the low degree of activation.

The purpose of the invention is to increase the degree of activation of the installation.

This object is achieved in that the device for activating the cement suspensions sion 7 comprising shock absorbers mounted on the sealed container with a vibrator connected to a vacuum source, coaxially disposed in the container in a vertical emitter Teflon labor-_ bki with its covering ^ί piezoceramic transducer mounted in the chamber under the emitter a horizontal partition with a central hole, inlet and outlet pipes, is equipped with a pipe for connecting to the top- pressure source. part of the tank installed under the baffle hole with a pipe with a nozzle at the end mounted under the last reflector and a multi-rod resonator covering the nozzle and reflector.

The drawing shows the installation diagram _: for cement activation, section.

The installation consists of a tank 1 mounted on shock absorbers 2 and provided with an inlet pipe 3 with a cork valve 4, a pipe 5 connected to a compressor ¹ (not shown) and provided with a cork valve 6, a pipe 7 with a cork valve 8 connected to a vacuum pump ( not shown), an outlet pipe 9 with a plug valve 10, a vibrator 11. Inside, the container is divided by a horizontal partition 12 with an opening 13, on the upper side of which a Teflon tube 14 with a piezoceramic emitter 15 is fixed, along which a cement slurry moves I, and a lower side - Mutiple high frequency inverter 16 composed of a tube 17, a nozzle 18, a reflector 19 and resonator 20 Mutiple.

Installation works as follows.

With closed cork valves 6 and 10, the vibrator 11 and the piezoceramic emitter 15 are turned on under pressure through the pipe 3 with the cork valve 4 open. capacity 1 is supplied with a water-cement suspension. Then, a vacuum pump (not shown) is turned on, connected to the nozzle 7 with an open, plug valve 8. The water-cement suspension, filling the upper sector of the tank 1, moves through the upper edge of the open Teflon tube 14 with the piezoceramic emitter 15 under the pressure difference in the Teflon tube 14, being exposed to an intense ⁵ ultrasonic field and additional destruction of cement grains by cavitation, which takes place under the action of ultrasound, which enhances the activation of cement. Having passed the hole 13 in front of town 12, the water-cement suspension 'passes through the tube 17 through the nozzle 18, enters the reflector 19 and the multi-rod resonator 20, and accumulates in the upper part of the lower section of the tank 1. Its accumulation level is regulated by a plug valve 10.' ⁵ Then the suspension is the pipe 9 'is gradually removed from the tank 1. At the end of continuous operation, the plug valves 4 and 10 are closed, the tank 1 is evacuated, and by means of the pipe 5, the remains of the water-cement slurry are squeezed out by pressure with the plug valve 6. sion through the Teflon tube 14 is then opened plug valve 10 to remove the slurry off vacuum pump, the vibrator 11, piezoelectric _{out! 5} recipients 15 and, lastly, the compressor is turned off (not shown).

Rinsing the activator with water is similar to its operation.

To adjust the transducer to the maximum intensity, it is possible to move the reflector 19 and the resonator 20. The intensity in different parts of the sound field varies depending on the viscosity of the water-cement suspension. The converter emits a wide sector of frequencies. The resonator rod ^{y is} calculated at one of the frequencies of the emitted spectrum, similarly to the calculation of a beam with one fixed and one supported end.

Using the proposed invention allows to increase the degree of activation of cement while improving the installation and reducing the time for activation processes.

VNIIIPI Order 7827/16 Branch of the PPP "Patent", g.

Circulation 589 Subscription

Uzhhorod, st. Project, 4

Claims (1)

INSTALLATION FOR ACTIVATION OF CEMENT SUSPENSION, containing a sealed container with a vibrator mounted on shock absorbers, connected to a vacuum source, a radiator coaxially placed in the tank in the form of a vertical Teflon tube with a piezoceramic transducer covering it, installed in a chamber under. a horizontal baffle with a central hole, an inlet and an outlet nozzle, characterized in that, in order to increase the degree of activation, the installation is equipped with a nozzle for connecting a pressure source to the upper part of the tank, installed under the baffle hole with a pipe with a nozzle at the end mounted under the last reflector and a multi-rod resonator covering the nozzle and reflector. SU .... 1047701