SU1726038A1 - Rubble and sand production plant - Google Patents

Abstract

The invention relates to the crushing and grinding of rocks and materials, namely, installations for the production of rubble and pecca. The goal is to increase production efficiency. The installation contains a receiving bunker-feeder, crushers of successive stages of grinding, appropriate screens, transport communications, headstamps, bunkers and pneumatic classifiers (PC). Under the screen of commodity sorting, chute was mounted with a gate equipped with a humidity sensor (LW). The main units of the plant are equipped with aspiration devices. The DV is electrically connected to the drives of the PC blower, gate, and associated conveyors. By the level of humidity (above or below the limit), the DW sends a command to these drives, with the result that the crushing screenings are sent either directly to the warehouse or to a PC. 1 il.

Description

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The invention relates to the crushing, grinding and processing of rocks and materials, namely, installations for the production of rubble and sand, and can be used in the production of building materials, in the enrichment and processing of secondary raw materials.

The purpose of the invention is to increase production efficiency.

On. The drawing shows a schematic diagram of the proposed plant in the plan.

Installation contains a bunker 1 with a feeder, crusher 2 Primary crushing, conveyor 3, screen 4, crusher 5 medium crushing, conveyor 6 of the oversize product, conveyor-conveyor 7 of the undersize product, conveyor 8 of the product of crusher 5 and crusher 9 fine crushing, conveyor 10, screen 11, stacker 12, bunker

(warehouse) 13, turn. 14, datzbeleler t5, conveyor 16, commodity sorting fekhot f7, IS stacker, 1% The movable screen of screen 17 is installed with an em damper with a two-position damper 20 (here it is rational to place the humidity sensor 24) . A conveyor is installed under the chute. 22 loads of pneumatic classifiers 23, 24.

The classification area contains a dust removal utility 25 with a bunker 26, conveyors | 7, 28, stackers 29, 30, an elevator (1 m | NY | Ü flour) Iff and a bunker 32 flour. Fractional, rpoxdTbi I13any surcharges are provided with 33 aspirations (dedusting) with shelters 34. Under the chute with a gate 20, a conveyor 35 is set to dispose of crushing. In the control system of the aggregates of the classification area, sensor 2.1 is predominantly electrically controlled from

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actuators of blowers of pneumatic classifiers 23, 24, gate 20 and associated conveyors.

During the installation, the initial hearth mass with a particle size of, for example, up to 750 mm is fed into the hopper 1 and is fed into the crusher 2 by a feeder 2. The crushing product and spillage from under the feeder is supplied by the conveyor 3 to the screen 4. shipped to the warehouse, and a fraction of up to 200 mm conveyor b is fed to the crusher 5, from where the fraction of up to 90 mm is spilled on the conveyor 8 and then conveyor 10 is transferred to the screen 11. From the upper sieve its conveyor 12 through the hopper (warehouse) 13 and then conveyor 14 the material is sent to crusher 9. From the bottom sieve screening material 11 is fed to the storage conveyor and undersize product - on conveyor 16 crashing 17. With the upper and lower screens 18,19 stackers latter material is fed to the warehouse, and spillage is directed at estrus and further conveyor 22 pnevmoklassifikatory 23.24. From here, a fraction of 0-10 mm, dry-divided into crushed stone 3-10 mm and sand 0.16-5 mm, is sent by conveyors 27, 28 and stackers 29, 30 to the warehouse, and the particles deposited in the bunkers of pneumatic classifiers by elevator 31 - into the bunker 32.

Waking up through the chute with the gate 20, the material from the screen 17 flows around the sensor 21, which continuously monitors the humidity of the stream, included in the control system of this node. When the dropout humidity is higher than the limiting one, mainly 6% the sensor gives the command to move the gate 20 to the first position. This includes the conveyor 35 and

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Conveyor 22 is disconnected. The flow is directed to the conveyor 35 and further to the crushing screening room, and pneumatic classifiers 23,24 and the associated equipment are idle behind them. When the humidity is less than the specified limit, the sensor gives the command to rotate the gate in the opposite position, including the conveyor 22 and associated equipment. The material is sent to the pneumatic classifiers that are now working, and when the gate is triggered, the conveyor 35 is disconnected. rubble

The increase in production efficiency is achieved by implementing a year-round work regime, increasing the volume and range of products, and eliminating its washing.

Claims (1)

The invention The plant for the production of rubble and sand, containing crushers and screens of successive stages, transport communications and aspiration units, characterized in that, in order to increase production efficiency, it is supplied with a pneumatic classifier of the product of the final stage of screening, a two-position gate of the pneumatic classifier loading chute and a gate control system, pneumatic classifier and associated communications as a function of the humidity of the specified product.