SU1374057A1 - Device for checking level of loose material in bunker - Google Patents

Abstract

The invention relates to the field of measuring volumes of bulk materials, namely, devices for monitoring the level of bulk materials in silos. The purpose of the invention is to increase reliability. The device contains a movable vertical rod 1, probes 6, 7 mounted on it, the free ends of which enter the lateral openings of the container 3 with the material, control elements 9 and receiving elements 10 of sensors. Material availability is determined at two levels. By means of the pusher 11, the rod 1 with the probes 6, 7 rises. The movement of the probes 6, 7 occurs independently of the rod until they appear on the plane of repose of the material under the visors 8. At the same time, the control elements 9 trigger the sensors and activate the signals corresponding to the position of the probes 6, 7, 0. Capacity levels 3. In the absence of material at the lower level, the material is turned on, and if there is material at the upper level, the material in the container 3 is stopped. 1z.p. f-ly, 1 ill. 5 & amp & (L co 4 o ate //

Description

This invention relates to measuring volumes of bulk materials, namely, devices for monitoring the level of bulk materials in silos.

The purpose of the invention is to increase reliability.

The drawing shows the structural diagram of the device.

The device consists of a vertical rod 1 installed with the possibility of axial movement in the supports 2 on the outer surface of the vertical wall of the hopper 3.

The downward movement of the rod under its own weight is limited by the stops 4. On the rod 1, probes 6 and 7 are mounted on bushings 5, which have the possibility of axially limited movement along the axis of rod 1. Probes 6 and 7 can be moved under protective visors 8, each probe 6 and 7 are rigidly connected to their control element, a magnet 9, and on the supports 2 there are installed receiving elements 10 sensors (for example, reed switches), which operate in one of the positions (for example, lower) of the probes 7.

Under the rod 1, a movable part of the actuator is installed — the pusher 11 is in the fixed guide 12. To determine the lower position of the pusher 11, its sensor is installed, the lower position, the control element 13 of which is mounted on the pusher 11,

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with its own weight or forcedly. 1. The control elements rigidly connected with the probes 6 — magnets 9 — trigger the elements and produce signals corresponding to the positions of the probes 6 and 7, i.e. about the presence of material in the tested levels of the hopper 3. The signals from the elements are removed when the rod 1 is lowered after the next lift.

In the absence of material at the lower verifiable level, the material is fed into the hopper 3; if there is material at the top level to be checked, the material supply to the hopper 3 is stopped.

Claims (3)

1. Device for monitoring the level of bulk material in the bunker, containing sensors of the upper and lower 25 ° levels of the material connected to the alarm system and installed in vertically spaced holes in the side wall of the bunker probes associated with control elements 2Q sensors, characterized in that, in order to increase reliability, it is equipped with a vertical rod installed in supports with the possibility of reciprocating movement, installed co1 J j-f i J y -. CAilV XJOJlX il iitJ.-l, / OA4.4.AiV - v i llyOCA receiving element 14 - on the direction of the stationary station 12. The operation of the device is that the presence of material in the bunker is checked at several (for example, 2) levels with periodic (using any of the known drives) raising and lowering the rod 1 in the supports 2 on the outer wall of the bunker 3, the lowering of the rod 1 is limited by the stops 4. With each lift of the rod 1-stops 4 raise the sleeves 5 with probes 6, and when lowering the rod 1, independently of each other, with 50 The material in the tested levels of the bunker 3 probes 6 and 7 can be supported on the plane of repose of the material under the visors 8 and lag behind the descending (below water pusher, and rigidly connected to the support rod and located in the hopper protective visors 40 for the probes, and the probes are mounted on the rod by means of loosely mounted on it bushings, and the rod above each support is provided with an emphasis to limit the lower position of the corresponding sleeve, Sensor elements are mounted on bushings, and receiving elements are mounted on an appropriate support. 2. A device according to claim 1, characterized in that it is provided with a sensor of the lower position of the pusher, the control element of which is fixed on the pusher, and the receiving element on the fixed guide. 45 with its own weight or forcedly. 1. The control elements rigidly connected with the probes 6 — magnets 9 — trigger the elements and produce signals corresponding to the positions of the probes 6 and 7, i.e. availability of material at tested bunker levels 3. The signals from the elements are removed when the rod 1 is lowered after the next lift. In the absence of material at the lower verifiable level, the material is fed into the hopper 3; if there is material at the top level to be checked, the material supply to the hopper 3 is stopped. Invention Formula 1. A device for monitoring the level of bulk material in a bunker, containing sensors for upper and lower material levels, connected to an alarm system, and probes connected to control elements mounted in vertically spaced openings in the side wall of the bunker sensors, characterized in that, in order to increase reliability, it is equipped with a vertical rod installed in supports with the possibility of reciprocating it in a fixed guide 0 water pusher, and rigidly connected with the supports of the rod and protective visors 0 for the probes located in the bunker, the probes being mounted on the rod by means of bushings freely mounted on it, and the rod above each support is provided with an abutment for limiting the lower position of the corresponding sleeve, while controlling Sensor elements are mounted on bushings, and receiving elements are mounted on an appropriate support. 2. A device according to claim 1, characterized in that it is provided with a sensor of the lower position of the pusher, the control element of which is fixed on the pusher, and the receiving element on the fixed guide. five Bhffiffli. Order 563/37 Random polygons pr-tie, Uzhgorod, st. Project, 4 Circulation 717 Subscription