SU894426A1 - Sampler - Google Patents

Description

(54) SAMPLIFIER

The invention relates to the field of automation of technological processes in industry and can be used in the chemical, metallurgical, mining and other industrial fields for sampling bulk materials in an automated manner, for example, from railway cars.

A device is known that contains a core-receiving tube fitted with a lobe valve, connected to the lower open end of a hollow rod with a sealed hollow cylinder movably mounted on it, two induction windings rigidly fixed, respectively on the cylinder and on the rod, and connected to a current source, and a piston is mounted inside the rod with a check valve and with a bracket fixed on it, which interacts with a bracket attached to the cylinder 1.

The specified samplers are complex and not adapted for sampling at a given depth.

The closest in technical essence and the achieved effect is the sampler containing the core receiver

a pipe with a tip and with a vibrator installed in its upper part 2.

The disadvantage of this device is the low representativeness of the samples it takes and the small functional capability of the selection.

The purpose of the invention is to increase the representativeness of the samples and expand the functionality of the sampler.

This goal is achieved by the fact that in a sampling tube containing a core receiver tube with a tip and a vibrator installed in its upper part, the core receiver tube is made with a hole in the upper part and with a thickening of the outer diameter in the lower part and equipped with an electromagnet installed in the upper part of the pipe and rings of ferromagnetic material, one of which is made with an emphasis and is located in the upper part of the tip, made with an emphasis, and the other - in its lower part.

The drawing shows the device, about 20 section.

A core receiver tube 1 with a hole 2 in the upper part has an outer diameter thickening in the lower part 3, which serves as an abutment for the upper ferromagnetic ring 4 attached to the core tube 1. The upper ferromagnetic ring 4 is movably connected to the tip 5 fitted with a stop 6 limiting move the lower ferromagnetic ring 7 down. The upper ferromagnetic ring 4 is also provided with a stop 8 for limiting the upward movement of the lower ferromagnetic ring 7. In the upper part of the core tube 1, the electromagnet 9 and the vibrator 10 are rigidly mounted, connected to the sources of electric current.

The sampler is movably connected to the guides 11. The position of the electromagnet 9 on the core tube 1 determines the depth of the core tube 1 in the bulk material.

The sampler works as follows.

The sampler is lowered along the guide 11 onto the surface of the bulk material and the vibrator 10 is turned on. The tip 5, under the influence of the weight of the sampler and the vibration forces, gradually goes into the bulk material, the lower ferromagnetic ring 7 remains on its surface, gradually comes out of engagement with tip 5 and rests in the upper ferromagnetic ring 4.

At this point, the end of the core-receiver tube 1 is at a predetermined depth, and the tip 5 is completely freed from the lower ferromagnetic ring 7 and through the upper ferromagnetic ring 4 and the lower ferromagnetic ring 7 abuts against the surface of the bulk material.

Upon further exposure of the sampling force and vibration, tip 5 opens and the core tube enters the bulk material, and the lower ferromagnetic ring 7, remaining on the surface of the bulk material, abuts the electromagnet 9, which is fixed in the right place on the core tube 1. After that, the vibrator 10 is turned off.

Subsequently, depending on the method of sample delivery, which is in the core receiver tube 1, either turn on the electromagnet 9, holding the tip 5 in the upper position through the lower and upper ferromagnetic rings 4 and 7 attracted by the electromagnet 9, or do not turn it on and, removing the sampler from bulk material transported to the place of delivery of the sample.

Unloading. The core tube 1 is carried out with the vibrator 10 turned on, with the lower ferromagnetic ring 7 lifted up to the stop of the upper ferromagnetic ring 4 and the tip 5 opened.

After unloading the core receiver tube 1, the vibrator 10 and the electromagnet 9 (if it was turned on) are disconnected and the sampler is reset to the next sample. In this case, the upper and lower ferromagnetic rings 4 and 7 and the tip 5 automatically occupy the lower extreme position.

Hole 2 in the upper part of the core lifter pipe 1 is intended to prevent overpressure and discharge in the core receiver tube.

Thus, the device allows sampling of bulk material, starting at a predetermined depth. The use of the device improves the quality control of the parameters of bulk materials, which ultimately improves the quality of products.

The economic effect from the use of the device in the coke-chemical production at sampling coal for coking will be 5 thousand rubles. in year.

Claims (2)

1. USSR author's certificate number 542822, cl. E 21 V 49/02, 1979. 2. USSR author's certificate number 137064, cl. G 01 N 1/08, 1960.