RU6153U1 - DEVICE FOR CLEANING TECHNOLOGICAL CHIPS FROM FORESTRY WASTE - Google Patents

Abstract

A device for cleaning technological chips from logging waste, including a permeable surface, a suction chamber, a loading device, a collection of separation products, characterized in that the device is equipped with a discharge chamber, the permeable surface is made in the form of an endless mesh tape, the cleaning zone is made of sections in which the vacuum is decreases towards the movement of the lower branch of the feed mesh conveyor, and the suction chamber is divided into sections with overlapping partitions iyami.

Description

Device for cleaning technological chips from logging waste

The invention relates to machines and equipment intended for cleaning technological chips from logging waste (greens, bark, small twigs and other impurities) and can be used at logging enterprises and in forestry.

A device for cleaning technological chips from logging waste, including a permeable surface and a suction chamber (A.S. USSR N 818672, MKI B 07B 4/06, D 21B 1/02, 1978).

The disadvantage of this device is the lack of cleaning of the permeable surface, which reduces e (| efficiency of its work.

The closest in technical essence and the achieved result to the claimed is a device for separating particles of technological chips and waste, including a permeable surface mounted with the possibility of rotation and located inside its suction (suction) chamber, loading devices, collections of separation products (A.S. USSR N 589313, MKI D 21 In 1/02, 1975 - prototype).

In the known device, chips are cleaned sequentially in only two areas. Its disadvantage is also the difficulty in maintaining the necessary vacuum inside the drums. In addition, in the device, the differential pressure across the radius of the ring is not proportional to the centrifugal force, which reduces e (| separation efficiency. There is no reliable system for cleaning the permeable surface, which will inevitably become clogged with small particles.

IPC at 07V 4/06, D 21V 1/02

cleaning, as well as purging the permeable surface.

The goal is achieved in that the device for cleaning technological chips from logging waste, including a permeable surface mounted with the possibility of movement (rotation), a suction chamber, loading devices, collectors of separation products, is equipped with a discharge chamber, and the permeable surface is made in the form of an endless mesh tape .

In addition, the suction chamber is made of sections in which the pressure decreases in the direction of movement of the lower branch of the permeable surface of the endless conveyor belt.

In FIG. 1 shows a diagram of a device with a suction and discharge chambers., FIG. 2 is a diagram of an exhaust chamber 3.

A device for cleaning technological chips from logging waste consists of a loading device 1, a conveyor 2, made in the form of an endless belt with a permeable surface (mesh). Above the lower branch of the conveyor 2, a suction 3 and a discharge 4 cameras are installed. The suction chamber is divided into sections A, B, C, D, the vacuum in which decreases in the direction of movement of the lower branch of the conveyor. Collections 5–9 are used to collect wood chips. In FIG. 2 shows a diagram of the suction chamber 3. A different amount of vacuum is achieved by blocking the openings of the chamber sections with partitions (dampers) 10 that limit the movement of air. The number of partitions depends on the required amount of vacuum, which is created using the suction pipe 11.

conveyor 2. Particles of the material being cleaned disintegrate randomly, but so that they lie separately from one another. In section A, the vacuum in the suction chamber is 150 - 200 Pa, which ensures the adhesion of all wood chips to the grid. Foreign objects (stones, metal inclusions, etc.) fall off the grid and enter collection 5. In section B, the pressure in the chamber is 100-150 Pa, in section B, 50-150 Pa; in the G-section - 10 - 50 Pa, while the corresponding components (knots, bark, peeled chips, leaves) fall off the grid and enter the collectors 6,7 and 8. The required discharge values are calculated by analogy with the above information sources. Different vacuum in the chambers facilitates the sorting of the incoming material, since the conditioned chips and waste have different attractive forces to the permeable surface due to the shape of their surface. In section D, the pressure chamber 4 creates excess air pressure and the permeable surface is cleaned. Particles that are blown out of the holes of the surface fall into the collection 9.

The application of the proposed device will significantly reduce the contamination of the technological chips with logging waste, and therefore improve the quality of products produced from it.

Patent Lawyer T.O. Novikov

Authors: V. N. Yakovlev

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- / V.A. Koryakin

Claims (1)

A device for cleaning technological chips from logging waste, including a permeable surface, a suction chamber, a loading device, a collection of separation products, characterized in that the device is equipped with a discharge chamber, the permeable surface is made in the form of an endless mesh tape, the cleaning zone is made of sections in which the vacuum is decreases towards the movement of the lower branch of the feed mesh conveyor, and the suction chamber is divided into sections with overlapping partitions iyami.