CN201140000Y - Disc vacuum filter gas distribution plate - Google Patents

Abstract

The utility model provides a gas distribution plate of a disc vacuum filter, which is characterized in that the structure of the existing gas distribution plate bridge plate is improved, and the ore suction angle of the gas distribution plate bridge plate is increased by 6° to 12°. The utility model has the advantages and effects of increasing the ore suction angle, expanding the scope of the vacuum filtration area, and increasing the ore suction capacity; through the improvement of the utility model, the production capacity and product quality of the existing disc vacuum filter can be improved.

Description

Disc vacuum filter gas distribution plate

technical field

The utility model belongs to the technical field of dehydration machinery, and in particular relates to a disc-type vacuum filter gas distribution plate of a mine dressing machine.

Background technique

Disc vacuum filters are often used in dehydration operations in technical fields such as iron concentrates, non-ferrous metal concentrates, non-metallic ores, papermaking and chemical industries. Disc vacuum filter is a device that uses vacuum as the filtering power to separate the slurry from solid to liquid; it is suitable for dehydration in the fields of iron concentrate, non-ferrous metal concentrate, clean coal, non-metallic ore and chemical industry.

As shown in Figure 2, the disc vacuum filter is a solid-liquid separation device. The filter disc b is driven by a stepless speed changer and a worm gear, so that the filter disc b is in the ore storage tank d filled with ore pulp. Rotate at a certain speed, when the filter disc b enters the vacuum filter area I, the ore slurry in the ore storage tank d passes through the filter disc b under vacuum to become filtrate, and the filtrate is discharged out of the machine through the filtrate pipe and the gas distribution plate a. The solid particles in the slurry are adsorbed on the filter cloths on both sides of the filter disc b to become a filter cake. When the filter disc b turns out of the slurry surface c to the vacuum dehydration zone II, the formed filter cake leaves the slurry surface c, and continues to suck out water under the action of vacuum. When turning to the ore falling area IV, the compressed air is blown into the fan-shaped disc b through the air distribution plate a, and the filter cake on both sides of the filter disc b is blown off, and the filter cake is discharged out of the machine through the ore falling trough e. In order to prevent the slurry from settling, a stirring paddle f is installed at the bottom of the equipment. From the perspective of the gas distribution panel a, there are two dead zones III and V, which are used to separate the vacuum filtration zone I, the vacuum dehydration zone II and the ore discharge zone IV, so as to prevent the blowing wind from affecting the vacuum degree and the discharge effect. At the same time, in the dead zone V, the online flushing of the filter cloth should be completed. In this way, Zhou Er continued continuously.

The air distribution plate in the filter is the most important part of the equipment. The structure of this part has a great influence on the efficiency and maintenance of the disc vacuum filter. The function of the air distribution plate in the filter is the same, but the structure is different. Relatively speaking, the American Emco filter is more reasonable in structure. The suction time of this kind of vacuum gas distribution plate parts is not interrupted, but the vacuum filter area of this gas distribution plate is 74°, and there is a gap of about 10° when it is vacuumed. The dead angle has not been fully utilized. It can be seen from Figure 2 that the size of the vacuum filtration area I (that is, the ore suction angle) affects the ability to absorb ore.

Utility model content

The utility model provides a disc-type vacuum filter gas distribution plate to solve the above-mentioned problems existing in the existing disc-type vacuum filter gas distribution plate.

The purpose of this utility model is achieved in this way, the ore suction angle of the gas distribution plate bridge plate is increased by α degrees, α=6°～12°, and the dead angle of about 10° during vacuuming is utilized to expand the vacuum filtration area Range, increase ore absorption capacity.

The advantages and effects of the utility model are that the ore suction angle is increased, the range of the vacuum filtration area is enlarged, and the ore suction capacity is increased. Through the improvement of the utility model, the production capacity and product quality of the existing disc vacuum filter can be improved.

Description of drawings

Accompanying drawing 1 is the structural representation of the utility model;

Accompanying drawing 2 is the working principle diagram of disc filter.

Detailed ways

The specific embodiment of the utility model is described in detail below in conjunction with accompanying drawing.

As shown in Figure 1, the utility model improves the structure of the existing gas distribution plate 1 bridge plate, increases the ore suction angle of the gas distribution plate bridge 2 by α degrees, α=6°～12°, and expands the vacuum The scope of the filter area increases the ore absorption capacity; the experiment proves that for the gas distribution plate of the Ys series disc vacuum filter, when α=9°, the effect is the best. By increasing the ore absorption time, the thickness of the filter cake can be increased, and the Increase the utilization factor and reduce the moisture content of the concentrate to improve production efficiency and product quality.

Claims (2)

1. A disc vacuum filter gas distribution plate, characterized in that the structure of the bridge plate (2) of the gas distribution plate (1) is improved, and the ore suction angle of the gas distribution plate bridge plate (2) is increased by α degrees. 2. The gas distribution plate of the disc vacuum filter according to claim 1, characterized in that the increasing angle α of the ore suction angle of the gas distribution plate bridge plate (2) is 6°-12°.

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