SU896479A1 - Sampler - Google Patents

Description

(54) TRIALS

This invention relates to testing bulk materials. The sampler is known, containing a lever suspended on an axis and rigidly behind a bucket attached to it. The bucket includes a hinged bottom, which is opened and closed using the directions to the qi installed in the discharge funnels 1. The lack of a sampler of this design consists in the fact that at the moment of the collision of the bottom, large dynamic loads arise on the guides of the higher sampling rates. The sampler containing the lever suspended on the axle and rigidly fixed on it is a ladle. The bucket includes a bottom, which is rigidly connected to the bracket, fixed on the wall of the bucket, a lever With counterbalance and a loading slot.;. The opening device is a counterweight, and the opening device is a stop fixed at the point of discharge of the sampler on the elements of the conveyor cover, in which the counterweight and abuts the bottom of the conveyor during movement of the bucket and opens the bottom of it. work and short service life, due to the presence of the stop, located outside the bucket. The bucket approaches the stop at the speed at which sampling takes place, and at the time the counter-load and the stop meet, there is a shock that causes frequent failures and breakdowns of the samplers. The purpose of the invention is to simplify the design, increase reliability and increase the service life of the sampler. This goal is achieved by the fact that in a sampler containing a lever suspended on an axis and a bucket rigidly fixed on it with a loading slot, the bucket is provided with a partition that does not reach the bottom with a visor, under which a discharge gap is made in the side wall.

The drawing shows the proposed sampler, a General view.

The sampler contains a lever 1 suspended on the axis O and a bucket 2 fixed on it.

The bucket includes side walls 3 and 4, a bottom 5, a partition 6 not reaching the bottom with a flange 7, a loading slot 8 and a discharge gap 9 in the side wall 3 under the visor 7.

The sampler works as follows.

When moving from the lower end position (from the conveyor drum to the upper extreme position to the discharge funnel, the wedge intersects the material flow, part of which enters through the slit 8 into the ladle.

Above the discharge funnel, elements of the bucket C are a side wall with a slit of a visor inclined to the horizon under such an angle, in which material from the bucket is unloaded by gravity; the unloading of the bucket ends when it stops at the top end position. After giving a signal to take a sample, the bucket moves to the lower end position. When the bucket moves to the drum, it crosses the flow of the test material, part of which passes through the slot 8 into the bucket. After stopping in the lower extreme position, the bucket starts moving upwards and, at the intersection of the flow, selects a new portion of material.

The bucket is attached to the lever at such an angle and the angle of inclination of the visor is chosen such that when the bucket is above the discharge funnel, the selected material from the bucket is unloaded by gravity.

On domestic; factories (primary, agglomerative, etc. ,.)

for sampling lumpy materials, samplers are most widely used; buckets of which are attached directly to the links of moving stub-roller chains (usually in 50.8 mm increments or to a carriage attached to the chain moving along guides.

The buckets of these samplers are unloaded in the same way as the bucket of the known sampler, with the aid of a stop located outside the bucket.

The use of the proposed sampler will completely eliminate the dumping loads on the bucket and sampler assemblies during unloading, simplify management at extreme points at normal high sampling rates, simplify maintenance and increase reliability, and increase the service life of the samplers. The sampler is structurally simple, since it does not have a hinged fastening of the bottom of the bucket and the devices that open and close it.

Claims (2)

1. USSR author's certificate number 161973, cl. G 01 N 1/12, 1934. 2. Glukaur, 1965, No. 4, p. 255, fig. eight.