SU30117A1 - Apparatus for mixing fibrous fillers with substances in the preparation of building materials - Google Patents

Description

The main author's certificate No. 21785 describes an apparatus for mechanizing the mixing of fibrous fillers with substances in the preparation of building materials and for transferring the finished mass to the work site. The apparatus is equipped with an inclined conveyor, on the belt of which the teeth are arranged in a staggered manner to grip and move the mass impregnated with the solution along an inclined plane and feed it to the work site or bunker for subsequent processing — formation or pressing.

Now, in order to introduce a dry sticking agent known by pollination of a pre-moistened fiber filler, a marked-dusting device, consisting of a dredge containing a powder bin, with a movable lattice, an ohm gate, is connected in several pieces rotating rollers located one under the other, some of which have longitudinal grooves, while others are circumferentially directed.

 (281)

In FIG. 1 shows a longitudinal section of the apparatus; FIG. 2-cross section of the same apparatus.

The device is designed for the production of magnesia or another type of fibrolite based on various types; in dry (caustic dolomite, Portland cement, etc.) by the “dry method” consisting in pre-soaking the mass of fillers with water or an appropriate solution (magnesium sulphate, sodium bisulfate, etc.) and subsequent pollination with a cementing agent.

The first part of the apparatus consists of an inclined belt scraper conveyor of the respective construction. copyright certificate No. 21785, passing in a tray and rotating on; two pulleys 3 it 4 (Fig. 1): the lower one - tension and the upper one - leading. The tape has inclined teeth along its length to grip and move the impregnated wood wool along the tray, fed along the conveyor / (Fig. 1) into the tank 2 with a mortar solution into which the inclined conveyor enters with the lower end. Metal teeth / - # located on the rubber.leng

- through 500 ll and attached to the latter with the help of the upper and lower plates fastened together with bolts,

having secret heads in the bottom plate. The part of the strip protruding from the underside of the belt, without interrupting the operation of the conveyor during rotation through the pulleys, will lift up the belt somewhat and give some relief, which is not enough to shed the mass from the teeth. During the mass transfer along the lower part of the inclined plank, the excess solution is squeezed and drains back into the bath. In the tank, the same level of solution is constantly maintained by adjusting with the help of a crane its entry from the pipe, as well as by the outflow of its excess through the drained hole.

The impregnated mass transported by the inclined conveyor enters the pollinator cathner, which is: a closed shaft with a device for scaling the mass with cementitious powder 7 and its subsequent mixing. The bunker for powder 7 in its lower part, located at the top of the shaft, has a grating with a movable sliding gate 5, which is driven by a pull and an eccentric 6, at which the powder is poured out of the bunny; the core and covers the impregnated mass of fillers discharged from the conveyor . In addition, the powder entering the chamber encounters on its way the vaginal movement of air created by the injection of air by means of a fan through the corresponding pipelines 8 into the chamber, as a result of which the powder is sprayed and distributed very evenly. The regulation of the powder consumption is carried out by experimentally establishing the number of lattice holes and the frequency of movement of the shutter on one side and the intensity of the air supply on the other side. The air supply and the received amount of it are tentatively calculated depending on the choice of the living section of the pipeline and the shape of its processes. In operation, the air ingress is controlled by the corresponding slides.

The mass, which has already received sufficient pollination during its fall in the chamber, then enters the corrugated rollers 9, pulling it downwards and at the same time mixing the fibers of the mass together for a more complete covering of them with a cementing layer, and for better loosening of the mass the rotational speed Rollers are not the same. The mass emerging from the first pair of rollers, falling into the second pair of JO grooved rollers, is additionally mixed and ground in another direction, which contributes to an even more complete and uniform coating of the individual fibers with a cementitious composition, and for better loosening of the mass, the rotation speed of these rollers is also not the same ; Finally, a third of a pair of rollers // - wavy, forms a continuous belt of fibrolite mass 1, coming out from under these rollers onto a conveyor belt, transporting the mass to the molds located along it. At the exit from the shaft, the loose mass is somewhat leveled and compacted by an overhead roller (7) located at the outlet orifice.

The rollers are driven by a chain transmission of gears. To regulate the compression of the mass, one of the rollers of each pair has the ability to move, and the tension of the rollers is provided by means of levers with counterweights abutting a frame connected to the roller bearings having movement in the corresponding directions. The specified tension can be realized with the help of tension springs, as is used in crushing roller plants.

The subject matter of the invention.

The form of the apparatus, specified in the author's certificate No. 21785, characterized in that with the aim of introducing a dry, stinging, known by pollination of pre-moistened fibrous filler, to the specified mainly author. swith an inclined belt conveyor adjoins a device for said pollination, consisting of a shaft containing a hopper 7 for powder with a movable lattice gate 5 and several rotating ones located in pairs below each other

rolls, of which one 9 have longitudinal grooves, others 10 - directed along the circumference.

yig i

.