SU1353498A1 - Granulator - Google Patents

Abstract

The invention relates to devices for forming various-sized granules from wet powdered and pasty masses and makes it easier to maintain the granulator and increase its reliability. The granulator contains a mechanism for reciprocating pushers composed of two split rings 12 installed at the ends of the matrix 1, which interact with the support rollers 15 and 16 and have annular grooves 11. Heads of 10 pins are installed in the grooves of split rings 12 9. With simultaneous rotation of the die 1 and the rings 12 around the different centers of the cage 7, they move radially, the pushers 8 move in the openings 5. At the same time, the material pressure load on each pusher 8 is sensed by the clip and through the pins 9 split rings 12. 1 3. p. f-ly., 4 ill. fd (L with cd with 4U with 00

Description

The invention relates to devices for forming 1Ti of various-sized granules from wet powdered materials and pasty masses and can be used in the chemical, petrochemical and oil refining industries, in particular in the manufacture of catalysts, sorbent carriers and other chemical products.

The aim of the invention is to facilitate maintenance, increase the reliability of the granulator, as well as reduce the wear of the rings and heads of the guide pins by leveling their peripheral speeds.

FIG. 1 shows a granulator, section; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one; in fig. 4 is a view of B in FIG. one.

The granulator contains a cylindrical perforated matrix 1 that feeds the roller 2 and the hopper 3 of the initial mass. In the matrix 1, longitudinal through grooves 4 and through cylindrical through holes 5 and 6 are made. In the grooves 4, shafts 7 of cylindrical pushers 8 entering the holes 5 are installed with radial movement. At the ends of the sleeves 7 there are guide pins 9 with heads 10 having the ability to move along the cylindrical holes 6. The heads 10 of the pins 9 are fixed in annular grooves 11 made in the rings 12, which are mounted on the ends of the die 1. The rings 12 are made detachable and may have toothed veins on the outer diameter q 13 which engages with teeth 14 on at least one of the support rollers, in particular a roller 15, which is crushing and is forced to rotate. The rings 12 have a supporting surface in contact with the supporting surfaces of the crushing 15 and the fixing 16 rollers. The position of the rollers 15 and 16 in the vertical plane provides an eccentric position of the rings 12 relative to the matrix 1. The locking roller 16 is offset in terms of relative to the crushing roller 15 by 135 ° in a clockwise direction. In order to avoid possible jamming and breakage of the pellet torus, the rollers 15 and 16 can be spring-loaded. Under the matrix 1, a pellet remover 17 is installed to cut the pellets 18. Sealing inserts 19 are placed in the annular grooves of the roll 2 and the matrix 1, preventing the product from being extruded and dumped axially in the forming zone from the surfaces of the roll 2 and the matrix 1. Rollers 15 and 16, the studs 9 and the rings 12 constitute the drive for the reciprocating movement of the pushers 8. On the matrix 1, at its ends, there are installed lids 20 with windows 21 for

technical needs. The caps 20 are integral with the drive shaft 22.

Pellet torus works as follows.

Granulated material from hopper 3

is drawn into the wedge space formed by the matrix 1 and the roller 2 rotating towards each other and pressed into the holes 5. At this time, the pushers 8 move to the output towards the material, creating an additional seal, i.e., pressing. With simultaneous rotation of the matrix 1 and the rings 12 around the different centers of the cage 7, they are able to radially move relative to the matrix 1, i.e., the pushers 8 move forward in the holes 5. At the same time, the load from the material pressure on each pusher 8 is perceived by the clip 7 9 is transferred to separable rings 12. Reaching the extreme front position, the pushers 8 are flush with the die 1, where the pellets 18 are ejected. Then the pushers 8 are rotated with further rotation of the granulator. t move from the extreme front

to the rearmost position (at the place of contact between the crushing roller 15 and the rings 12). After that, the cycle repeats.

The use of the proposed granulator allows eliminating the blocking of the drive mechanism of the pushers of the granulated product, improves the conditions for washing the gaps between the pushers and the holes of the die, provides free access to the pushers and the drive mechanism.

The proposed design increases the reliability of the granulator and facilitates its maintenance.

Claims (2)

1. Granulator containing a cylindrical perforated rotating matrix installed in the holes of the matrix pushers associated with clips, a mechanism for reciprocating pushers, support rollers feeding a roller, characterized in that, in order to facilitate maintenance and increase the reliability of the granulator, the mechanism of reciprocating pushers consists of two split rings co-operating with support rollers having annular grooves and tightly coupled with clips guides with heads installed in the grooves of split rings. 2. The granulator is in accordance with claim 1, characterized in that, in order to reduce wear of the rings from the heads of the guide puffs by aligning their peripheral velocities, the rings and at least one of the support rollers are provided with gear rims that engage . 12 eleven Aa (Rig. G 20 2 Sh Fa.d 2 FIG.