CS231523B1 - Concrete mixer truck - Google Patents

Abstract

The purpose of the invention is to ensure the necessary degree of mixing of the self-leveling floor mixture, pre-mixed in a mixer for the production of concrete mixture. Mixing is achieved by the passage of the pre-mixed mixture by gravity through the mixer container, formed by a casing having a polygonal cross-section and by walls in which there is an inlet and outlet opening. A perforated disc equipped with a perforated ring, mounted on a shaft mounted in bearings and driven by an electric motor, rotates rapidly in the container. One wall of the container can be made removable. This facilitates cleaning of the mixer and allows easy replacement of a worn disc.

Description

The present invention relates to a mixer for pouring flooring mixtures used in building production.

Hitherto used plants for the production of pouring floor mixtures use so-called. propeller burner. When used, a qualitatively good pouring mixture is achieved, followed by a quality floor.

The use of gravity mixers, forced circulation or newer equipment for the production and compressed-air conveying of concrete and mortar into the building does not achieve the required quality of the pouring flooring mixture or the quality flooring because the circumferential speed of the mixing elements of these devices is low and cannot mix perfectly.

A drawback of the propellers used in the production of pouring floor mixtures is the rapid wear of the mixing propeller and, consequently, the rapidly decreasing effect of mixing. In order to ensure that the pouring mixtures are pumped smoothly into the building, two blasting machines are used in succession - one for the production of the mixture and the other as a mixture container, which must always keep the mixture in motion and prevent its solids from settling. The power consumption of electric motors is therefore relatively high. The jaws need to be equipped with a device for dispensing and transporting the components of the hook flooring compositions, which is costly and cost-effective only for large quantities of cast floors. For a number of smaller users, this dedicated device, which would not be sufficiently utilized, is unavailable.

These drawbacks are overcome by the pouring floor mixer consisting of a closed container provided with an inlet and an outlet opening in which the mixing disc is rotated. It is an object of the invention that the container shell has a polygonal cross-section and the mixing disk is provided with a ring, com, preferably of cylindrical shape, on the circumference, wherein both the disk and the ring are provided with openings.

The mixer, which is included in the line of machines that premix the pouring floor mixture and after mixing it, will ensure that the quality of the pouring floor mixtures and the quality of the floors is at the required level. Because the mixer gradually agitating only a small amount of the mixture is less space and energy consuming than the burner. Mixing intensity of the mixture, on which the quality of the mixture and floors depends, does not decrease by the process of wear of the mixing disc, but on the contrary, it increases by enlarging the holes in the disc and ring. This reduces the mixing time and does not increase the amount of energy required for mixing. The filling and emptying of the mixer is solved by gravity. Replacing a worn mixing disc is quick and easy. Before and after the implementation of the cast floors, the individual machines can be used for other construction needs before being placed in the line, which positively affects the economic results even with small amounts of cast floors. With ease of construction, drive and maintenance, low material usage and low construction and operating costs, this device is readily available to all users.

The accompanying drawings show an exemplary embodiment of a mixer for pouring floor mixtures according to the invention.

Fig. 1 shows a view of the mixer drawn in the section plane A - A. FIG. 2 shows a cross-section of the mixer along the line B - B.

The mixer consists of a closed container, formed by a casing 2 and two walls. The walls are provided with openings for the inlet and outlet of the pouring mixture. A hopper 7 is provided above the inlet opening, which serves as a reservoir of the mixture premixed thereon as shown by the mixer. The hopper 7 holds the entire contents of one mixer mix. During the manufacture of the next mixer in the mixer, the mixer will gradually mix the mix from the hopper. This then flows to the pump (not shown) by gravity. The inlet and outlet openings can be lockable. The actual mixing takes place in a container of the mixer, in which the mixing disc 3 fixed on the shaft 1 is rotated, driven by an electric motor (not shown). The shaft 1 is housed in the bearing 8, sealed with a seal 9. The vessel bearing S and the electric motor are mounted on the base 10. The rotation of the mixing disc 3 with the ring 4 causes swirling of the mixture supported by the shape of the vessel housing 2. In a short time, all lumps of cement, humus and small organic objects contained in the mixture are crushed.

The concrete mixer can be used in the kit when pouring concrete under the floor.

Claims (2)

OBJECT CLAIMS: 1. A mixing floor mixer comprising a sealed container formed by a shell and two walls in which the mixing disc is rotated and is provided with an inlet and an outlet opening of the casting mixture, characterized in that the shell (2) has a polygonal cross-section and a mixing disc (3) FITTED in relation to the drive shaft (1) is provided on its periphery with a ring (4), preferably cylindrical, wherein both the disk (3) and the ring (4j) are provided with openings. 2. Mixer mixer according to claim 1, characterized in that one single container is transferred as removable. 2 sheets of drawings 231323 7 231523 Severografia. n. p., závod 7, Most Price 2,40 Kčs