SU459678A1 - Volumetric Dosing - Google Patents

Description

one

The invention relates to dosing equipment and can be used for volumetric dosing of fine-grained materials in the building materials industry and other national households.

A continuous volumetric metering device consisting of a bunker, a round-feed feeder, a compacting roller, a calibrated straight plow, a bunker for receiving the cut off material and a return conveyor is known.

However, in such a metering device many materials intensively stick to the surface of the plow, therefore it is necessary to constantly clean it compulsorily. In addition, the material returns to the side of the bin, and a layer of dosing material is formed above the feeder belt at the front wall of the bunker, which leads to an overload of the additional bin and disruption of the normal operation of the dosato ra.

In order to eliminate these drawbacks, in the proposed metering device, the return device of excess material is placed once inside the annular chute and is made in the form of an endless chain, and oo with scrapers. The chute is installed at one end above the bunker, and with the other rests against the calibrating knife. In addition, the trough 1 is made of movable e-vertical flat-plate and with holes in the bottom in the zones of the calibrating knife and the bunker.

The proposed dispenser is depicted in the diagram. The dispenser consists of a frame 1, a two-section hopper 2 with a adjustable gate gate 3, a belt feeder 4, ave, iv-od (not shown), a roller 5, a calibrating knife 6, a groove 7, an endless chain & -with scrapers 9 and pre-ode 10.

In the bottom of the gutter in Z01nah calibrating knife 6 and the hopper 2 are made holes. The dispenser works as follows.

The material is poured into the hopper 2. The sizing, the knife 6 and the gate 3 are mounted at a predetermined height from the belt of the feeder 4. Then the feeders of the feeder are turned on, and the chain drive is driven. The material is transported in a continuous layer from the hopper 2 - on the tape-feeder 4 under the cato 5, where the layer of material becomes-even density and gets to the calibrating knife 6, which cuts off the extra layer (hump) of the material.

After the calibration, an even layer of material is transferred on the n-4tel belt 4 for further processing.

The cut loose layer of the scrapers 9 is guided along the chute 7 to the front section of the hopper 2 and is poured into it through an opening in the chute.

The dosing of the material and the cleaning of the calipher scraper occur continuously. If necessary, the metering performance of the dispenser is adjusted accordingly.

the height of installation of the gate 3 and the calibrating oja 6. Automatically adjust the capacity of the dispenser by varying the speed of the tape, for example, when using the variator 1a.

Subject invention

Claims (2)

1. Volumetric dispenser containing frame, belt feeder with drive, hopper with gate, roller, calibrating stand and return device of excess 1 material, characterized in that, in order to increase the dosage and reliability of work, the return device of the material debris is placed inside ring gutter and is made in the form of an endless chain with scrapers; with one end of the gutter mounted above the hoppers, and the other resting against the gage knife. 2. A dispenser according to claim 1, characterized in that the chute is made movable in a vertical plane and with openings in the bottom in the zones of the calibrating knife and the hopper.