SU87914A1 - Method for the production of clay bricks - Google Patents

Description

The subject of the invention is a method for the production of a gdn brick from a grinded clay mass heated to a temperature close to sintering and poured into a mold without repressing.

A distinctive feature of the proposed method is that for additional heating of the mass in the molds prior to sintering, the heated gas is blown through the mass or gaseous fuel is burned inside it, followed by rapid cooling of the products to a temperature of 300-350 ° by blowing through the gas recovery heat carrier.

The drawing shows a longitudinal schematic section of an installation for the production of clay bricks.

The technological process of clay brick production is as follows.

The raw material extracted from the field of natural moisture is crushed to a particle size of 0.5 mm during mining by the use of a milling excavator and delivered to the box-type supply. If it is not possible to use a milling excavator, the raw material is mined and crushed by any other suitable method.

From the feed box / crushed raw material, the inclined plate-bucket elevator m 2 or any other type of transport is delivered through the food hopper 3 to the rotary kiln, where the substance and the material are heated to temperatures close to but below the start of discharge, the liquid phase (average 850-920 ° C). Further grinding of raw materials is due to the rapid process of drying and aggressing.

The furnace works on the principle of countercurrent and is gassed in half a gas in the gas furnace 5 from low-grade fuels fed to the furnace in a row of 6 and burned inside the furnace at the last 2-3 meters of the material. The kiln-treated material in a closed tray 7 of refractory materials is sent by gravity to 8, installed in a standard normal to the plane of the pallet 9, with a trowel plate 10 used for sintering ore fines in metallurgical engineering.

As a result of the movement of the pallet 9 under the funnel 8, through which material from the furnace 4 enters the tray 7, their forms are filled with material with a layer of 66-67 mm. Pallet forms have dimensions that take into account the shrinkage of the material as a result of bee-packing and cooling5 {.

Moving along the upper branches of the machine, pallets with the material pass under a steel roller or scraper (shown in the drawing), smoothing the upper surface of the marsrhal, and come with gas burners, equipped with burners 12 for gas coming from the furnace 5, through a gas line 13.

The chamber is a camera made of refractory and thermo-insulated lyop: x materials, covering the doors; thick pallets.

The gas burns into the horizon: and the products of combustion produce in the pallets of gmeupdi1 the friable structure of the mats. -Palon or crotiacT in the middle of the material.

The pallet forms have dpi1a, cgb.pieces with small perforations, through which the combustion products are removed from the material into the gas extractor vacuum chambers 14, vacuums, which are evacuated by a high-pressure fan.

At the exit from under the hearth 11, the pallets 9 with the material move iodine with a metal cap 15, into which from outside the pipe 16 and the distribution system 17 carry out a heating of the heater (external air).

The heat carrier, as a result of the vacuum created in the gas suction vacuum chambers 14, also present in the area of the cap 15, penetrates the material in the pallet forms and cools it. Here is the transformation of material into brick. Vacuuming in the area of the cap 15 is also determined by a separate valve. With a high-pressure torus pump, a non-fan drives the selected heated media (outside air) to the burning gas in the firing furnace 4.

Pallets with chilled temperatures up to 300-350 ° C in a tail section of the shaft are tilted. The ejection of an apron is prevented from ejecting a cool chi pica from a pallet of fire and passing the curve of the tail section 18.

The emptying pallet occurs when they reach the full-fledged position in Japan, with a branch of the branch D: The ghetto is shaken by the hook; and: You are passing through)) C a; etzialf ;; ь; th emphasis ia and directing dpijepi.

Spanning pallet means reduction of the volume of the package, package P1, Egos in forms, as a result of cneiiaiHiK and Ol.g wait; t.

Pa pooled mezhuvorotlom mehN: z:; c 19, C1: a special co-operation of the cI, astra, astra, a cross on the track, a cross on a railway track 20, a part of the г г г г г г г г стал стал стал стал I I I I drawing g (okszai). Kiriich from the fly: Bbi is loaded onto a metal platform and a carriage with.

PREAMETE OF THE INVENTION

The production of clay bricks from crushed glia mass heated to a temperature close to enekaiy and poured into a mold without donning is about the same, so that, for additional heating of the mass in the forms, it is passed through the mass before sintering hot gas or burns its gaseous top fuel inside, with a nose. the next rapid cooling of the product to a temperature range of 300-350 ° C by pumping gaseous thermal gas through it