SU9399A1 - Mechanical installation for mixing glass composition - Google Patents

Description

Typically, blending for glass melting furnaces is done by hand, by weighing or metering individual parts of the mixture. In order to reduce the cost of this work and its acceleration, an installation is proposed, with the help of which all this work is mechanized, for which conveyors are used according to the number of individual components of the mixture, with buckets strictly measured by volume. The materials supplied by conveyors are poured into the mixing tank, where they are thoroughly mixed, passed through sieves and then transported by conveyor to the destination.

In FIG. 1 shows a side view of an installation with a partial section of the outermost conveyor; FIG. 2 shows an installation along the line A - B in FIG. one; FIG. 3 is a top view of the unit with the casing removed and with a partial cut above the screens; FIG. 4, 4 -: reject sieves and 5, 5 - mixing device.

A mechanical unit for mixing: shivan glass composition consists of five parts, namely, receiver A, a three-belt bucket lift B, devices for mixing C box D with screens for screening the composition and removing debris, stones, etc., and conveyor E.

Receiver A (Figs. 1, 2, 3) consists of three compartments 1, 2, 3 with a sloping curved bottom 4 located on frame 5. Receiver compartments are intended for filling the constituent parts of the insert into a glass melting furnace and namely: 1 compartment for chalk , 2-dl gravel and 3-dl potash. Materials from receiver D through windows 14 are taken away by a lift consisting of. three endless bands b, 7, 8 with buckets 11, 12,13; the belts rotate on shafts 9 and 10. Buckets 11, 12 and 13 are not equal in capacity, their sizes are calculated for proportional sampling of materials required for the composition. The lift B is driven by the transmission through the pulley 15, which sits on the axis of the upper shaft 9. The axles of the shafts 9 and 10 are resting in bearings mounted on brackets.

The material lifted by the hoist is fed through pipe 18 to the mixing device C, which is a truncated cone, tilted with its top down. The device C consists of an outer cone 19 (FIG. 5) without a bottom and an inner cone 20, ending with a cylindrical part 21 with two bottoms 22 and 23, having round holes 24 and 25 located crosswise to the cross, and central openings 26 through which a cone 20 passes a shaft 27 which receives rotation from a bevel gear 28 (FIG. 2) sitting on the upper end of this shaft and a gear 29 sitting on a shaft 30 located relative to the shaft 27 at a right angle. Shaft 30 is driven by an endless belt, worn on pulleys 32 and 33, while pulley 33 sits on the axis of shaft 9 of lift B. Shaft 27, rotating in a cone 20, has three pairs of mixing fingers 34 arranged in pairs at right angles, with two pairs of them are located in the conical part and one pair in the cylindrical part 21 between the bottoms 22 and 23. The shaft ends with a disk 35 on which the fingers 36 are circumferentially arranged. The purpose of the fingers 34 is to break the material entering the mixer C, 36-drop it on the sieve 37 into box 38.

An eccentric finger 39 is attached to the disk 35. Under the mixing device C, a driver 40 with sieves 37 is suspended on a tug 40 and rotated by a crank 39.

The two upper sieves 37 (FIG. 4) are positioned in the crate 38 obliquely, and

the lower one is horizontal, the upper sieve has a large grate, and the lower one has a shallow screen. Finely mixed mixed material through the lower sieve enters the conveyor E, consisting of an endless web 43, put on shafts 44 and 45, driven by gears 46 and 47 and pulleys 48, 49 dt of shaft 30.

From conveyor E, the mixture is loaded onto the trolleys or else transferred to the conveyor of the smelting furnace. Under the conveyor 43, across its entire width, is a brush 50 for brushing off the adhering mixture.

The subject of the patent.

Mechanical installation for mixing glass composition, characterized by the combined use of the following parts: a) a three-belt bucket lift installed in the respective compartments of receiver A (Fig. 1-3) and equipped with buckets 11, 12 and 13, of different capacity corresponding to the proportion going to the mixture the three main components of the mass (sand, lime and alkali), b) mixing tank 20 with two bottoms, fitted with holes 24 and 25 arranged on the cross (Fig. 5) and shaft 27 mounted along the axis of the tank, carrying three pairs the locating fingers 34 and the disk 35, and c) located under the mixing tank of rotatable sieves, which serve to sift out the crushed material and dump it onto the conveyor belt E.

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