SU1434311A1 - Device for extracting a sample - Google Patents

Abstract

The invention relates to the sampling of bulk materials, in particular, devices for separating a sample from a sample of single samples, for example, grains at grain-receiving plants. The purpose of the invention is to simplify the design, increase the reliability of the separation of a representative sample of a given mass, and automate the process of sampling. The device contains a funnel 1, installed under the outlet openings of the bunkers for collecting single samples, a rocker arm 3 with levers at the ends, mounted with &

Description

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pivotally on prisms 6, capacity 7, mounted by prisms 9 on the shoulder; 3. The divider 10 is fastened on one lever under the outlet of the container with the shutter, and the counterweight 11 on the other. The rectangular divider is equipped with a parabolic partition dividing it into the sample compartment and the grain surplus compartment. Parabolic compartment surface

one narrows and the other expands. The selection of a 2 kg sample is automatically determined by the position of the divider under the outlet opening of the container, which is determined by the mass of grain in the container. Sample extraction is possible from any amount of grain in the tank. The outlet of the container is provided with a shutter, and the divider is a stopper. 2 hp f-ly, 4 ill.

The invention relates to the isolation of a sample of bulk material, in particular, devices for separating a sample from a sample of bulk material, for example, grain from a daily sample at grain receiving plants (elevators).

The aim of the invention is to simplify the design, increase the reliability of the selection of a representative sample of a given weight and automate the sample selection process.

The presence of a rocker arm with levers at the ends, the installation of a divider under one outlet of the funnel of the tank, the presence of a divider on the same lever under the outlet of the tank, and a counterweight on the other lever provides for automatic movement of the divider depending on the mass of grain in the tank. a certain position under the outlet of the tank

Making the upper part of the divider in the form of a rectangle with a width corresponding to the width of the outlet opening of the container, providing it with a parabolic partition ensures its division into two compartments, one of which is narrowed and the other is parabolic.

Automatic, depending on Maccibi grain in the tank, the installation of the divider in a certain position under the outlet of the tank and the parabolic septum provide automatic division of the flowing grain into two streams, one of which flows through the sample compartment and corresponds to the required weight

samples (2 kg), and friends /: - through the compartment of surplus grain and remove it from the device. At the same time, the division of the grain flowing from the tank into two streams ensures a uniform sampling from the entire grain mass and a highly representative sample.

The implementation of the rocker arm in the form of a fork, and supports in the form of prisms, the presence of rollers limiters provide a reduction trenk 3 supports and stable position of the tank.

The presence of a tangentially mounted on the axis of the flap and the stopper of the divider improves the flow of grain into the opening of the container, eliminates the displacement of the divider relative to the outlet of the container when the sample is inserted, and improves the accuracy and reliability of its separation.

FIG. 1 shows a device for separating a sample, the section in FIG. 2 is the same, rotated 90 j in FIG. 3 — a divider with one parabolic partition, top view; FIG. 4 is the same, with two parabolic partitions.

The device for sampling contains a funnel 1 for filling grain, mounted under the exit holes with bins of the bins 2 for collecting single samples, the yoke 3 in the form of a fork with rigidly fixed levers 1-g 4 and 5 at the ends, mounted rotatably on the prisms 6 rigidly fixed on brackets, and the cash register of the sample being sampled, the accumulative tank 7 with the output zagorom-hole 8 of a rectangular shape, suspended

on the arm of the rocker arm 3 on the prisms 9 rigidly mounted on the wall of the accumulation tank 7. Divider 10 is rigidly mounted on the fastener A with the capacity to move under the outlet 8 of the tank, and the counterweight 11. the divider position under the outlet of the outlet 7 is fixed on the lever 5 automatically depending on the mass of grain in the tank.

The prisms 6 and 9 of the rocker arms and the container are facing each other with a vertical plane, and with diametrically opposite sides of the container prisms it is equipped with roller stops 12.

The presence of the rocker arm in the form of a fork, the installation of the ei o and the container on the prisms, the presence of the roller rollers excludes the radial rolling of the container, and the arrangement of the prisms on the supports with the vertical plane to each other reduces the friction in the supports in the working position and improves the work.

The divider 10, made in the upper part in the form of a rectangle with a width corresponding to the width of the container opening 8, is provided with a parabolic partition 13, which divides the divider into the sample compartment 14 and the surplus grain compartment 15, the surface of one of which is parabolic narrowed and the other expands.

The ratio of the areas (surfaces) of the opposite parts of these compartments located under the outlet of the tank determines the size of the sample being drawn (2 kg) from any amount of grain in the tank, and the division of the grain into a separate compartment by a parabolic partition ensures uniform sampling grain mass and high representativeness of the sample.

The shutter of the container opening is made in the form of a rotary damper 16 mounted on an axis 17 tangentially and equipped with an actuator 18, and a divider 10 having a concave toothed edge 19 is provided with an actuator stopper 20. The nozzles 22 and 23 are designed to drain selected sample and grain surplus.

The presence of a tangentially installed on the axis of the valve and the stopper of the divider improves the flow of grain in the hole and eliminates the offset of the divide5

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l in the sample, improves the accuracy and reliability of its allocation.

The device works in the following way.

To isolate a sample from a mass of single grain samples of a single host, it is necessary to drive 18 to close the valve 16 of the hole 8, uncover 0 and open the gate of one of the bins 2. Once the grain has transferred to the specified mass of the sample 7, the divider 10, and the divider 10, respectively the grain will automatically take the desired position under the outflow opening of the tank 7, it is necessary to turn on the drive 21 of the stopper. In this case, the stopper 20 will engage with the serrated edge 19 of the divider and lock it. After that, the actuator 18 needs to open the valve 16. Turning on the axis 17, the valve should become in the hole in the wall of the hole flush with the wall, grain 5 from the tank through it the open outlet will flow into the divider and the parabolic partition 13 will be divided into streams, one of which will constitute the sample (2 kg) and flow through compartment 14 and its nozzle 22, and the excess flow will flow through compartment 15 and its nozzle 23 . In the presence of grain in capacity ti .i February 7 kg less divider is in the initial position - not moved - and grain passes completely through the sample compartment, i.e. The device provides automatic selection of samples from any amount of grain in the tank. The invention makes it possible to simplify the design, automate the process, separate the sample, eliminate the manual labor of laboratory technicians and increase productivity. I 5 The use of the proposed device completely eliminates the need for the presence of personnel during sampling and allows its use in automated systems for assessing the quality of grain.

Claims (3)

1. A device for carrying out a sample, 55 including a funnel for splicing grain, a collection tank with a shutter in the form of a flap mounted at its outlet, and a divider, characterized in that simplifying the design, improving the reliability of a representative sample of a given weight and automating the sample extraction process; the device is equipped with rigidly supported supports and a rocker arm mounted on them with levers rigidly fixed on its ends, and the storage tank is equipped with supports and installed again on one of the arm arms under the the outlet of the funnel, the receiving opening of the divider is made in the form of a rectangle with a width corresponding to the width of the outlet of the accumulative tank, and is equipped with a parabolic partition dividing it into the sample compartment and the grain surplus compartment, the divider being rigidly mounted on the rocker arm directly under the outlet of the vessel, and the other fie. / Compiler G.Veselov Editor E.Kopcha Tehred M.Hodannch Proofreader O.Kravtsova Order 5548/45 Circulation 847 VIIIPI State Committee of the USSR for inventions and discoveries 113035, Moscow, L {-35, Raushsk nab. 4/5 The rocker arm is equipped with a movable jiCHHbiM counterweight. 2. The device according to claim 1, characterized in that the rocker is folded in the form of a fork, the supports of the rocker arm and the storage tank are made in the form of prisms, the support points are facing each other, and the device is equipped with restrictive rollers installed at the bottom of the prism at the bottom of the storage tank . . 3. The device according to claim 1, about tl and - the fact that the shutter of the outlet of the storage tank, which is in the form of a flap, is installed on its axis tangentially and is equipped with an actuator, and the divider is made with a concave toothed edge and is provided with a stopper and . / J 15 / U 10 - fie.d Subscription