SU945032A1 - Apparatus for unloading loose materials from hoppers - Google Patents

Description

(5k) DEVICE FOR UNLOADING BULK MATERIALS

one

The invention relates to cargo handling equipment and can be used in port cargo handling complexes for bulk cargoes.

A device for unloading bulk materials is known which contains a number of bins, each of which has a discharge opening and a flap. The conveyor is located under the discharge openings. The device has a feeder and blower with a longitudinal discharge gap WITH.

However, this device does not provide sustainable unloading bins.

Closest to the invention. the technical essence and the achieved result is a device for unloading bulk materials from bunkers with gates, containing a conveyor, under the working branch of which is a mobile teleika with a drive, the sensor is produced FROM -BUNKERS

and a driver unit connected to the inputs of the comparison unit and carriage position sensors connected to one of the inputs of the drive control unit of the truck C2.

A disadvantage of the known device is the long material unloading time due to the non-uniformity of the flow of loose material.

jg material is especially poorly flowing) in time. The observed irregularities are of a random nature, and the device does not provide for the possibility of operational

5 interventions in the process for restoring the preset mode and when emptying the silo section from the material do not provide for the possibility of automatically transferring the cart to another bin section,

which adversely affects the discharge time.

The purpose of the invention is to reduce the load time. The goal is achieved by the fact that the device is equipped with a lifting mechanism for the working branch of the conveyor mounted on, and a lifting control unit for the working branch of the conveyor, the input of which is connected to the output of the comparison unit, and the outputs for the lifting drive and the other input the output of which is additionally connected to the gate of the bunker, with the performance sensor mounted on the mobile body). On the line; The diagram of the device under consideration is shown. The device contains a sectional hopper 1 or several bunkers with outlet openings, closed with drive gates 2. A receiving conveyor 3 with a carriage 4 and a carriage driving movement 5 is located under the shutters. Cart 4 contains a mechanism for lifting the working branch of the conveyor 3, for example, frame 6 with rollers 7. Frame 6 is equipped with an actuator 8, lifting. The rollers 7 are supported by an unloading capacity sensor 9, for example, a force measuring system of type TIR) mounted on frame 6, the rollers 7 are a working branch of the conveyor 3. The device also contains a block 1 for adjusting the lifting of the working branch of the conveyor, block 11 for driving and driving a car , setting unit 12 and comparison unit 13. Each section of the hopper 1 is equipped with a crash mechanism. The working position of the trolley k (corresponds to the number of bunker sections) is detected by a position sensor 15 (for example, a limit switch). The device works as follows. The cart is installed in one of the working positions and the conveyor 3 is activated. The driver unit 12 adjusts to produce a signal corresponding to a given material output capacity of this section of the bunker, the position of which is determined by sensor 15. At the same time, the ruler mechanism 1 (for example, vibrating, containing the electric motor with unbalance, mounted on the bunker) and the actuator gate 2 of this section 9 - 4 of the bunker is connected to the outputs of the control unit 11. The control unit 11 opens the shutter 2, and the material is discharged from this section. The signal produced by the sensor 9, proportional to the current value of the flow rate, is fed to the block 13 and compared with the set value. The error signal enters the control unit 10 (for example, a proportional-integral controller that acts on the lift drive 8 (lowering the frame 6, thereby changing the flow rate. The flow change occurs until the equilibrium of the signals from sensor 9 and block 12. Tasks. The adjustment unit 10 also controls the unit 11. This effect occurs simultaneously with the start of the drive 8 to change the flow rate and only when it is signaled to increase it, i.e., when the frame 6 is lowered with the rollers 7. The input 8 to the descent of the frame 6 signal from the block 10 through the block 11 turns on the T mechanism of the ruins and thereby restores the outflow of material from the bunker, when there is no signal, the mechanism 14 is turned off. When the switch 8 is repeatedly turned on to descend the frame 6 (which indicates the bunker and the need to move the cart unit 11 turns on the drive gate 2 (closing it) and converts t with the drive 5 to another section of the bunker. The next section is unloaded. The process is similar. If necessary, the trolley will be transferred from one section to any other. For this, unit 1 1 .guide to have a tunable cart translation program. It is possible: but to carry out a tunable output capacity task on the bunker sections, then the circuit communicates between block 11 and 12 (not shown). The use of the proposed device provides steady unloading of the section of the hopper, increases productivity and speed due to proportional control of the current value of the flow rate and operational control of the gauges of the gauge.

The interaction of the entered blocks gives the possibility; ability to use the device for all types of cargo, including poorly flowing,

The device allows to improve the performance and speed of unloading capacity control.

Claims (2)

1. US patent number 3986622, 20 cells. B 65 G 7/18, 1976, 2. USSR author's certificate GR 640938, cl. B 65 G 65 / 30,1976 (about. Totype).