RU2488538C1 - Hopper for loose materials - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to loose material unloading with the help of hoppers and may be used in pharmaceutical, chemical, food industries etc. Proposed hopper comprises vertical cylindrical housing changing into convergent section composed of truncated cone to terminate in discharge branch pipe. Said hopper accommodates rotary shaft with agitators fitted thereon at different height levels. Upper level agitator is mounted in hopper conical part while lower level agitator is arranged in aforesaid discharge branch pipe. Said agitators are composed of bent plates or Z-like rods that make the blades arranged parallel with hopper walls.

EFFECT: efficient bridge breaking, uniform loading-unloading, simplified design.

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Description

The invention relates to a device for unloading bulk materials using silos and can find application in the pharmaceutical, chemical, food and other industries.

Known bunker for bulk materials containing a vertical cylindrical body, turning into a tapering conical part, made in the form of a truncated cone, and ending with an outlet pipe, and a shaft located inside the bunker, mounted for rotation and arranged on different levels along the axis of the agitators with blades (see ac SU 852744, IPC B65G 65/34; B65D 88/66, 1978).

The disadvantage of the hopper is the inefficiency of collapse and the failure to ensure uniform discharge of bulk material, as well as the complexity and low-tech design of agitators.

An object of the invention is to increase the efficiency of collapse, ensuring uniform feeding and unloading of bulk material and simplifying the design.

The technical result is achieved by the fact that in the hopper for bulk materials containing a vertical cylindrical body, turning into a tapered conical part, made in the form of a truncated cone, and ending with the outlet pipe, and a shaft mounted inside the hopper, mounted for rotation and located on it, on different axial axes with agitators with blades mounted in the conical part of the hopper, as well as in the outlet pipe, unlike the prototype, both agitators are made in a Z-shape, and the blades Z- braznyh turners are arranged parallel to the hopper walls in their places of accommodation.

The implementation of both agitators Z-shaped allows you to increase the efficiency of unloading bulk material from the hopper by providing collapse both in the upper level of the conical part of the hopper and in the lower level of the hopper in its outlet pipe, while ensuring uniform delivery of bulk material from the outlet pipe having small diameter.

The location of the blades of Z-shaped agitators parallel to the walls of the hopper in the places of their placement contributes to the uniform delivery of bulk material from the hopper and its output part - pipe. The flow of bulk material passes from laminar to turbulent, more intense.

In addition, the design of agitators and the hopper itself is simplified.

The set of distinguishing features “both agitators are made in a Z-shape, and the blades of Z-shaped agitators are parallel to the walls of the hopper in the places of their placement” allowed to achieve a technical result - to increase the efficiency of collapse, to ensure uniform feeding and unloading of bulk material and simplify the design.

The features of the invention meet the requirement of clause 10.7.4.3 (2) of the Rules:

- “both agitators are made in a Z-shape”, it is significant, since it affects the technical result achieved - improving the collapse efficiency and uniformity of the supply and unloading of bulk material, is a new technical solution in comparison with the prototype, the feature is characterized by the form of the elements.

The sign “and the blades of Z-shaped agitators are parallel to the walls of the hopper in the places of their placement” is also significant, since it affects the technical result - ensuring collapse and uniformity of the supply and unloading of bulk material, while the flow of bulk material passes from laminar to turbulent, more intense, is a new technical solution in comparison with the prototype, the feature is characterized by the location of the elements. All of the above essential features are with the specified technical result in a causal relationship.

Therefore, each distinguishing feature is “essential”, new and necessary in comparison with the prototype, and the claimed technical solution meets the condition of patentability “novelty”.

Verification of inventive step by the applicant:

- the closest analogue has been determined: 852744;

- revealed the signs by which the claimed invention, characterized in an independent claim, differs from the closest analogue by its distinctive features: “both agitators are made Z-shaped, and the blades of Z-shaped agitators are parallel to the walls of the hopper at their locations.”

- from the prior art, no solutions having the signs matching the distinguishing features of the claimed invention have been identified, and the influence of the distinguishing features on the technical result indicated by the applicant has not been established as well: improving the collapse efficiency, ensuring uniform feeding and unloading of bulk material and simplifying the design.

From the above it follows that the known prototype is the closest technical solution identified by the applicant from the prior art, and the claimed technical solution does not reveal signs that match the distinguishing features of the prototype.

Therefore, the claimed technical solution meets the condition of patentability "inventive step".

The drawing shows a hopper for bulk materials, General view.

The hopper for bulk materials contains a vertical cylindrical body 1, turning into a tapering conical part 2, made in the form of a truncated cone, and ending with the outlet pipe 3.

Inside the hopper there is a shaft 4 rotatable and located on it, at different levels along the axis of the agitators 5 and 6. The agitator 5 of the upper level is installed in the conical part 2 of the hopper, and the agitator 6 of the lower level is located in the outlet pipe 3. The agitators 5 and 6 are made in the form of curved plates or rods of a Z-shape, which are blades 7 and are located parallel to the walls of the hopper in the places of their placement.

The hopper for bulk materials works as follows.

When the shaft 4 rotates from a drive (not shown), the mass of bulk material presses on the walls of the conical part 2 of the hopper, and the agitator 5 of the upper level, due to its Z-shape by the blades 7, shifts the material from the upper part of the wall of the conical part 2 of the hopper, also from its lower part of the wall, providing advancement of the material to the outlet pipe 3, without forming a arch formation.

Effective material advancement in the outlet pipe 3 is provided by the agitator 6, also of a Z-shape with blades 7, which accompany the advancement of the material along the entire height of the outlet pipe 3, while ensuring uniform distribution of material from the outlet pipe 3 having a small diameter.

The invention of a "Hopper for bulk materials" is industrially applicable.

At OJSC “Production Association“ Plant named after Sergo ”design documentation has been developed and rotary tablet machines are being manufactured using a hopper for the pharmaceutical industry.

Claims (1)

Bulk hopper for bulk materials, containing a vertical cylindrical body turning into a tapering part made in the form of a truncated cone and ending with an outlet pipe, and a shaft located inside the hopper, mounted for rotation and mounted on different levels along the axis of the agitators with blades mounted in the conical part of the hopper, as well as in the outlet pipe, characterized in that both agitators are made Z-shaped, and the blades of Z-shaped agitators are parallel to the walls of the bunker RA in places of their placement.

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