Way to overload the rock mass on conveyor belt

 

(57) Abstract:

The invention relates to the mining industry, in particular to the development of potash deposits, and can be used to improve sanitary and hygienic conditions of work of the staff and dedusting of the rock mass under overload it through the hole on the belt conveyor. Method overloading ore on the conveyor belt includes the assignment in the roof of the conveyor drift in the mouth of a relief well discharge heat, and on the conveyor in the conveyor roadway covered the receiving tray when the overload ore through the discharge hole, the discharge chute and the output tray on the conveyor. Additionally are supporting the production, which shot down well with the conveyor roadway at a place of installation covered the receiving tray, and the mouth of this well in conveyor roadway connecting pipe elbow with cover output tray. The aim of the invention is the dust removal of the rock mass and the improvement of sanitary-hygienic conditions of work. 1 Il.

The invention relates to the mining industry, in particular to the development of potash deposits, and can be used to improve sanitary and hygienic conditions conveyer.

The known method overloading rock mass on conveyor system, including the assignment in the roof of the conveyor drift in the mouth of a relief well discharge heat, and on the conveyor in the conveyor roadway covered the receiving tray when the overload of the rock mass through a hole, estrus and the output tray on the conveyor [1].

This device is widely distributed in the mining industry, including, for example, and in the potash mines of OJSC "Uralkali", so it is taken as a prototype.

The disadvantage of this method is that the rock mass during movement through the borehole carries with it the air, creating in the output bin excessive pressure. Moreover, the greater the length of the borehole, which overloaded the rock mass, the greater is the pressure of the air.

Air pressure pushes the dust through density cover output tray, so in conveyor roadway in places overload rock in the air is a significant amount of dust, often exceeding the maximum permissible concentration. This affects the hygienic conditions of work of the staff.

Dust settles on the soil conveyor drift and its oborudovanoje device is despite the above, a significant portion of the dust remains in the transportable rock mass and is given to the beneficiation plant, which has a negative effect on the enrichment, for example, potash ore [2].

To resolve the above shortcomings in places overload rock install a special device for removing dust and suction system to improve sanitary and hygienic conditions of work of the staff with additional fans [2, 3].

However, the use of additional fans leads to an increase in capital and operating costs for haulage.

The aim of the invention is the dust removal of the rock mass and the improvement of sanitary and hygienic conditions of work of the staff due to the removal of dust from cover output tray in isolation from the conveyor drift production of energy moving through the discharge hole of the air.

This objective is achieved in that in method overloading ore on the conveyor belt, including the assignment in the roof of the conveyor drift in the mouth of a relief well discharge heat, as on a conveyor belt in a conveyor STI tray on the conveyor, according to the invention are additionally supporting the production, which knocked off the conveyor roadway at a place of installation covered the receiving tray, and the mouth of this well in conveyor roadway connecting pipe elbow with cover output tray.

The combination of the listed new features in the proposed method leads to the emergence of new properties - possible removal of dust from cover output tray in isolation from the conveyor drift production of energy moving through the discharge hole of the air without the use of additional fans.

The invention is illustrated by the drawing, which shows a conveyor drift and auxiliary production cross-section.

The method is as follows.

In conveyor roadway with 1 set of belt conveyer 2 is fixed in the roof in the mouth drilled a relief well 3 the discharge chute 4, and mounted on the conveyor covered the receiving tray 5.

Near conveyor drift 1 are auxiliary production 6. This may be bias, transport or conveyor drift depending on specific conditions. The auxiliary output can be digitalnow production 6 knock bore 7 with a conveyor drift. The wellhead 7 in the conveyor tunnel 1 connect the pipe elbow 8 with cover output tray 5.

To pipe elbow had the shortest length and it does not hang the dust, well 7 are drilling so that its mouth in the conveyor roadway 1 was located near the site of the installation covered the receiving tray 5.

When the overloading of the upper tunnel (not shown) of the rock mass it is sprinkled through the discharge hole 3, season 4 and covered the receiving tray 5 on the conveyor belt 2. When this ore carries with it the air, creating in the output bin overpressure.

Air pressure pushes out of ore dust for pipe elbow 8 and the bore 7 in the auxiliary production 6. Moreover, the greater the length of the borehole, which overloaded the rock mass, the greater the pressure and the more effectively removes the dust from the rock mass.

In supporting the development of 6 the dust settles. To localize dust auxiliary production 6 on both sides of the bore 7 overlapping the flexible or rigid jumpers (shown in Fig.1 is not shown).

Of auxiliary production lot 6 deposited dust 9 is removed, for example, scraper conveyor 10 spent in the Noah generation 6 allows you to get rid of dust in the conveyor roadway, eliminate time-consuming cleaning dust from inside it equipment, to improve sanitary and hygienic working conditions.

It should be noted that the supply of dust in isolation from the conveyor drift 6 production is only due to the energy of the falling ore without the use of additional fans.

The proposed solution allows you to withdraw from the rock mass part of the dust fractions and to reduce the dustiness of the mine atmosphere all the way to its further transportation to the places of its subsequent peresypav on conveyors at the mine and crushing the Department.

The reduction in rock mass dust fractions containing, for example, for conditions potash mine mostly barren rock (insoluble residue), allows for an increase in the content of the useful component and an additional economic effect.

SOURCES OF INFORMATION

1. Soloviev Century A. Methodological guide to mining in the mines of the Verkhnekamskoe potash Deposit. - M.: Nedra. - 1992. - S. 89. Fig. 3.3 (prototype).

2. Herzen, N. And. Improving pneumostome for dedusting of the rock mass in to the and concentrators: a reference guide. - M.: Nedra, 1989. - 197 S.

Method overloading ore on the conveyor belt, including the assignment in the roof of the conveyor drift in the mouth of a relief well discharge heat, and on the conveyor in the conveyor roadway covered the receiving tray when the overload ore through the discharge hole, the discharge chute and the output tray on the conveyor, characterized in that it further held auxiliary production, which knocked off the conveyor roadway at a place of installation covered the receiving tray, and the mouth of this well in conveyor roadway connecting pipe elbow with cover output tray.

 

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