SU733999A1 - Mortar continuous mixing and charging apparatus - Google Patents

Description

(54) DEVICE FOR CONTINUOUS MIXING AND DISCHARGING

MIXTURE MIXTURE

The invention relates to devices for the preparation and injection of building mixtures, namely a mortar mixture, preferably gypsum with water. According to the main author. St. No. 617269, a device for continuous mixing and injection of a mortar mixture mainly of gypsum with water, comprising a housing with a mixing chamber, a working member in the form of a screw pump with a coaxially mounted vane shaft, a charging nozzle forming an annular space with the upper part of the housing, a nozzle for supplying water to annular space and a water-jet nozzle installed in the lower part of the chamber, the loading nozzle in the lower part being conical with the trapezoidal grooves and contactors with a housing. However, the lack of devices for the retention of solid impurities reduces the operational reliability of this device. The purpose of the invention is to increase the operational reliability of the device. This goal is achieved by the fact that the proposed device is equipped with a separating ring mounted in the mixing chamber in front of the blade shaft, which is made in the form of a perforated disc with cams on the end surface, one face of each of which is inclined to the latter, and the inner diameter of the separating ring is determined according to the formula d-D - 2e, where d is the inner diameter of the separating ring; D is the outer diameter of the disk; e is the eccentricity of the pump screw. In addition, the separating ring is made with a tapered groove in the direction of the working member. FIG. 1 shows the proposed device, a general view; in fig. 2 - housing with mixing chamber, longitudinal section; in fig. 3 is a view A of FIG. 2; in fig. 4 - section BB, fig.Z; in fig. 5 - screw and pump cage, longitudinal section. The device contains a single-screw pump 1, a hopper 2 with a loading nozzle 3, a housing 4 with a mixing chamber, a water supply nozzle 5 and a nozzle b, a paddle shaft 7 fixed to the end of the screw 8 of the pump 1. The pump 1 is connected to an electric motor 9 by means of gluts.

The nozzle 6 is installed in the lower part of the mixing chamber of the housing 4 for supplying water to the frontal blade wah 7. The housing is fixed to the suction inlet of the pump 1. The pump 1 and the electric motor 9 are mounted on the AME.

The charging nozzle 3 forms an annular space with the upper part of the housing, filled with water through the patruook b. Water, coming out under pressure from the slots in the lower part of the inlet nozzle 3, forms a continuous flow on the inner walls of the mixing chamber, which prevents the gypsum from sticking on the chamber walls, and dissects the flow of dry gypsum from the inlet pipe with a large number of water jets, evenly moistening it before mixing. .

The device is equipped with a separating ring 10 installed in the mixing chamber in front of the blade shaft 7, which is made in the form of a perforated disc with cams 11 on the end surface, one of the faces of each of which is inclined to the latter. The inner diameter of the separation ring 10 is determined by the formula d D - 2e, where d is the inner diameter of the separation ring, D is the outer disk, and e is the eccentricity of the screw 8 of pump 1.

The separation ring 10 is made with a cone-shaped groove in the direction of the working body.

The device works as follows.

Water is fed into the mixing chamber of the housing 4 through the nozzle 5 and the nozzle B, and the electric motor 9 of the coca 1 is turned on. The hopper 2 is continuously filled with dry gypsum, which passes through the loading nozzle 3 into the mixing chamber. The gypsum stream is uniformly moistened at the outlet of the loading nozzle 3 by the shaft 7. The resulting mortar mixture is pumped by a screw pump 1 through the pipeline to the place of its use.

Occasional solid impurities getting into the plaster are retained by the separating ring 10 of the mixing chamber of the housing 4. Impurities located in the center of the stream are dropped by the edges of the pushers 11 of the blade shaft 7 or crushed by the cams 11 to a size that is not dangerous for the working part of the device.

Claims (2)

1. Device for continuous mixing and injection of the mortar mixture according to ed. St. 617269, characterized in that, in order to improve operational reliability, it is provided with a separation ring mounted in the mixing chamber in front of the blade shaft, which is made in the form of a perforated disc with cams on the end surface, one of the faces of each of which is inclined to the latter, and the inner the diameter of the separating ring is determined by the formula d4: D - 2e, where d is the inner diameter of the separation ring; D is the outer diameter of the disk; e - eccentricity of the pump screw. 2. The device according to claim 1, characterized in that the separating ring is made with a cone-shaped groove in the direction of the working body. / CHALL / CLAWS