RU2245197C1 - Device for cleaning a pulp from organic impurities - Google Patents

Abstract

FIELD: mining; cleaning of a pulp from organic impurities.

SUBSTANCE: the invention is pertinent to the field of mining and may be used at realization of stripping operations after removal of solid large impurities from a pulp. The device contains a concave plate with longitudinal bores installed on a run of a pulp, above which there are a rotating cleaner with blades inserted in lots of the plate and supplied with crescent grabs on their edges, a row of knives installed with a shift from a vertical plane of the blades rotation and located between the crescent grabs. The given device ensures a continuous cycle of removal from a pulp of organic impurities, for example, roots of plants, algae, a wood-waste and so on.

EFFECT: the invention ensures a continuous cycle of removal of organic impurities from a pulp.

2 cl, 2 dwg

Description

The invention relates to the mining industry and can be used during overburden operations after removal of large solid inclusions from the pulp.

A device for removing chips from the drain of the classifier, containing a concave plate with holes made of two parts, each of which is attached at one end to a horizontal axis interacting with the drive [1].

The disadvantage of this device is that the process of dropping chips occurs cyclically - after accumulating a sufficient amount of it on the bottom of the plate, due to the rotation of the latter by an angle of more than 90 °.

A device for cleaning the pulp from organic impurities, containing a concave plate with holes, over which is installed with the possibility of rotation of the cleaner in the form of blades [2]. This device is taken by us as a prototype.

This device provides a continuous cycle of removing organic impurities from the pulp until the moment when these inclusions do not clog holes in the plate.

The objective of the proposed device is to ensure a continuous cycle of removal from the pulp of organic inclusions, for example, plant roots, algae, wood residues, etc., while preventing clogging of the holes of the plate.

This is achieved by the fact that in a device containing a concave plate with holes, over which a cleaner in the form of blades is mounted for rotation, the latter is equipped with crescent grippers mounted on the outer edge of the blades and located opposite the longitudinal holes of the plate, as well as several knives installed in a series with a given amount of displacement from a vertical plane passing through the axis of rotation, and located between the grips. In addition, the knives have a shape identical to the shape of the grippers, and the concavities of the knives and grippers are directed towards each other until the grippers pass through a series of knives.

Figure 1 shows a General view of a device for cleaning the pulp from organic impurities.

Figure 2 shows a top view of the device.

A device for cleaning pulp from organic impurities consists of inlet and outlet nozzles 1, 2, a concave plate 3 with longitudinal holes 4 located between the nozzles, and a cleaner installed above the plate. The cleaner is made in the form of several blades 5, connected by means of knitting needles 6 with the axis 7, rotatably and equipped with sickle-shaped grippers 8, rigidly fixed to the outer edge of the blades, these grippers located opposite the longitudinal holes of the plate 3. The cleaner also includes several knives 9 installed in a row with an offset from the vertical plane passing through the axis of rotation by the amount at which each knife interacts with the organic inclusions carried out by the grabs from the zone of movement of the pulps from the inlet to the outlet nozzle. In this case, the knives are located between the grippers. They can have a shape identical to the shape of the grippers, and the concavities of the knives and grippers are directed towards each other until the grippers pass through a series of knives.

This embodiment of the knives allows you to both direct the organic inclusions moved by the grippers into the hopper 10, and cut them into parts equal to the distance between the knives in a row, after which they fall into the hopper 10.

The device operates as follows.

After cleaning the pulp from large inclusions by known technical means, it enters the inlet pipe 1 and passes through the longitudinal holes 4 in the concave plate 3 to the outlet pipe 2. Moreover, the organic inclusions contained in the pulp in the form, for example, of plant roots, algae, wood residues and the like, are delayed on the plate 3. At the same time, the incident pulp stream acts on the blades 5 of the cleaner. The pulp speed after the selection of large inclusions is at least 2 ... 4 m / s, which is sufficient to ensure the rotation of the cleaner by the pulp stream. At a pulp flow rate of less than 2 m / s, the blades are rotated by an external drive (not shown in FIG.). When the cleaner rotates, the crescent-shaped grippers 8 enter the longitudinal holes 4 of the concave plate 3, move the organic impurities from top to bottom and dump them into the hopper 10. The organic impurities remaining on the grippers 8 pass through a series of knives 9 and are also discharged into the hopper 10. The cleaned pulp is sent for use in a technological cycle, for example, when washing dams.

This device provides continuous cleaning of the pulp from organic impurities, which is confirmed by its tests when installed on the outlet pipe of the hydroclassifier on the sand pit.

Sources of information taken into account when preparing the application:

1. Auth. certificate No. 787083, cl. B 03 B 5/62 of 02/01/79, BI No. 46, 80.

2. Handbook of ore dressing, M., "Nedra", 1972, volume 1, S. 254-255.

Claims (2)

1. A device for cleaning the pulp from organic inclusions, containing a concave plate with holes, over which a cleaner in the form of blades is mounted for rotation, characterized in that the cleaner is equipped with crescent grippers mounted on the outer edge of the blades and located opposite the longitudinal holes of the plate, and several knives installed in a row with a given amount of displacement from a vertical plane passing through the axis of rotation, and located between the grippers. 2. The device according to claim 1, characterized in that the knives have a shape identical to the shape of the grippers, and the concavities of the knives and grippers are directed towards each other until the grippers pass through a series of knives.

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