SU1397309A1 - Briquetting roller press - Google Patents

Abstract

The invention relates to the processing of materials by pressure, in particular to presses for the manufacture of briquettes from plastic or powder materials. The purpose of the invention is to improve the serviceability and quality of the briquettes obtained by supplying hot steam and water to the working surface of the rolls 2 and 3. For this purpose, in the housing 10 of the screw feeder 7, there are made through longitudinal channels 13 and 14, directed along the axis of the forming rolls 2 and 3, and holes 15, 16, 17 and 18 connected to these channels, and the axes of some holes are directed perpendicular to the working surfaces. the opposite molds of the 1 rolls, and the axes of the other holes are directed towards the blades of the 1k pack. 3 il. I (L

Description

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The invention relates to the processing of materials by pressure, specifically to the designs of roller presses for briquetting, mainly plasticized materials.

The purpose of the invention is to improve serviceability and improve the quality of briquetting.

FIG. 1 shows a roll press for briquetting, of general appearance; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one.

The roller press contains frame 1 mounted in the frame of counter-rotating rolls 2 and 3, on the working surfaces 4 of which cells 5 are made. The rolls are connected to drive 6. On frame 1, a vertical screw feeder 7 is installed above the rollers 2 and 3. 8, drives 9 shnekov, housing 10 auger feeder, loading nipple P.

In the lower part of the housing 10, adjacent to the roll gap 12, made through the longitudinal channels 13 and 14, oriented along the forming rolls 2 and 3.

With channels 13 and 14 are connected to the holes 15-18, made in the housing 10 of the screw feeder 7 so that the axis of the holes 15 and 16 are directed towards the working surfaces 4 of the forming rolls 2 and 3 along the normal to them, and the axis of the holes 17 and 18 - in side of the screws 8.

Controlled distributors, such as valves 19 and 20, are connected to channels 13 and 14 for connecting main water and steam.

Roll press works as follows.

Through the charging nozzle 11, the compression material is fed into the housing 10 of the worm feeder. The screws 8 guide it into the roll gap 12 to the forming cells 5.

On counter-rotation of the rolls 2 and 3, the material is pressed into briquettes, which, when exiting the roll gap, freely fall out of the cells 5 and are withdrawn by a briquette conveyor (not shown).

During long-term operation of roller presses with a viscous plasticized material, for example, with a coal-tar coal seam with a bitumen binder, it sticks to the surface of the roller grooves, and therefore they must be periodically cleaned of adhesive material.

In the proposed press, the process of cleaning the roll cells is carried out automatically. Through the valves 19 and 20, if it is necessary to clean the cells, hot steam and water are alternately supplied to the channels 13 and 14. Wherein

Rolls 2 and 3 continue to idle, and the flow of the compressible material through the pipe 11 stops. Hot steam through the holes 15-18 falls on the surface of the rollers and augers and softens the material sticking to the rollers and the blades of the augers, which is then washed off with water.

After the end of the cleaning process, the supply of steam and water is stopped, the pressing of the pressed material is turned on again and the press

continues to work in the technological mode.

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Thus, in the proposed press, the presence in the housing of a screw feeder of longitudinal channels oriented along the axis of the rolls and openings associated with these channels and directed to the working surfaces of the rolls and on the blades of the screws, ensures the cleaning of the roll cells and blades of the screws without the use of laborious manual labor and without removing the rolls, which not only improves the ease of use, but also improves the quality of briquetting, and also significantly reduces equipment downtime.

Claims (1)

Invention Formula A roll briquetting press containing drive rolls with forming cells, a vertical screw feed feeder in the form of screw rolls mounted successively along the rolls rolls with their rotational drives and a pipe to feed the material being processed, in order to improve serviceability and quality of briquettes It is equipped with controllable distributors for connecting water and steam lines; in the housing of the screw feeder, through channels are made on its two sides parallel to the rolls and Two rows of holes, united with each of them, the axes of one of the rows are directed toward the blades of the augers, and the other toward the opposite roll, normal to its forming surface, while the said distributors are mounted at the ends of the said through channels. -BUT 7 p n-j: iLJ 3 13 1,192 W FIG. 2 Bb 18 Yu 77 to 20 Fig.Z