SU1020322A1 - Screw conveyer for viscous and quick-setting materials - Google Patents

Abstract

A screw conveyor for viscous and fast-hardening materials, including a housing with loading and unloading nozzles and a screw working body with a shaft and drive, characterized in that, in order to increase the reliability of work when moving viscous and fast-hardening materials, the screw working body is made in the form of alternating pivoting and fixed blades, with the pivoting blades fixed to the shaft by means of axles with the possibility of combining with the fixed blades. U o so | s to

Description

The invention relates to a lifting-transport machinery industry, namely to screw conveyors used for transporting viscous and quick-hardening materials.

Known screw conveyor, comprising a housing with windows of loading and unloading and placed in it the screw 1.

Closest to the present invention, there is a screw conveyor comprising a housing with loading and unloading nozzles and a screw working body with a shaft and a drive 2 located therein.

A disadvantage of the known technical solution is the difficulty of transporting viscous and fast-acting materials, since it is possible for the material to get stuck in the casing and to shut off the discharge pipe, and this leads to a decrease in the reliability of the screw conveyor.

The purpose of the invention is to increase the reliability of operation when moving viscous and fast-hardening materials.

This goal is achieved by the fact that in a screw conveyor for viscous and fast-hardening materials, including a housing with loading and unloading nozzles and a screw tool with shaft and drive located in it, the screw tool is made in the form of alternating turning and fixed blades, while turning The blades are fixed on the shaft by means of axles with the possibility of overlapping with fixed blades.

FIG. 1 shows a screw conveyor for viscous and fast-hardening materials, the swivel blades are folded back, a general view; in fig. 2 is a view I in FIG. 1 (mixing material); in fig. 3 is a section A-A in FIG. 2; in fig. 4 is a view I in FIG. 1 (product transportation); in fig. 5 is a sectional view BB in FIG. four; in fig. 6 is a cross-section of the FIG. 5 (mutual contact of the stationary fixed blades); in fig. 7 is a view II to FIG. 2; in fig. 8 is a section DD in FIG. 7; in fig. 9 is a fragment III in FIG. 4 (variant of the hinged installation of the rotary blades); in fig. 10 is a view E of FIG. 9.

A screw conveyor for viscous and fast-hardening materials consists of a body 1 with a loading nozzle 2 and a discharge nozzle 3, which is connected to the receiver via a slide gate 4. In case 1, there is a screw body 5 with a shaft 6 connected to the drive 7. fixed alternately fixed 8 and rotary 9 blades, forming a helical working surface. The stationary blades 8 have an angle of elevation of the coils 7f Each of the rotary blades 9 is fixed on the shaft b using axles 10, which are passed into the sleeves And and the holes 12. The matching edges of the stationary 8 and rotary 9 blades are made with a bevel 13. On the shaft 6 there are restrictive stops 14.

Alternatively, it is possible to pivot each of the pivot blades 9 by means of a loop 15 (Fig. 9 and 10), the flaps of which are welded to the non-working surfaces of the pivot 9 and the fixed 8 blades, respectively.

Screw conveyor works as follows.

When the body 1 is fully loaded, a shutter 4 is closed with a viscous, fast-hardening material. The shaft 6 rotates in the direction of arrow B (Fig. 1-3). In this case, under the action of the material (force action P), the rotary blades 9 are deflected on the axis 10 in the direction of arrow K in the direction of the force action P and abut against the abutment 14. The moving, viscous material that is prone to caking and hardening undergoes active movement, activation that eliminates its hardening. This is also facilitated by the fact that the fixed blades 8 work as angular dividers of the product.

After the production movement of the material, the shutter 4 opens with simultaneous switching of the actuator 7 to the opposite direction of rotation (Fig. 4, arrow L). At the same time, the resistance P of the force action, neither the blades 8 and 9, from the material side will change its direction to the opposite. Under its influence, the rotary blades 9 will turn on axles 10, freeing from the stops 14 in the direction of action, resistance P until they come into contact with their edges with bevels 13 with the corresponding matching edges of the fixed blades 8, m. e. rotated through an angle of 90 °, which will result in a continuous screw surface on the shaft 6 from the blades 8 and 9.

The angle at the lifting of the turns of the blades 8 and 9, the number of rotary blades 9 on the length of one pitch of the screw working body and the location of the stops 14 depends on the properties of the material being moved.

The invention will improve the reliability of the screw conveyor during transportation of viscous and fast-hardening materials due to the elimination of solidification of the material in the housing.

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Claims (1)

A screw conveyor for viscous and quick-hardening materials, including a housing with loading and unloading nozzles and a screw working body with a shaft and a drive located in it, characterized in that, in order to increase the reliability of work when moving viscous and quick-hardening materials, the screw working body is made in the form alternating rotary and fixed blades, while the rotary blades are fixed to the shaft by means of axes with the possibility of combining with fixed blades.