SU691368A1 - Apparatus for controlling the loading of materials to dispensing hoppers - Google Patents

Description

(54) DEVICE FOR MANAGING THE LOADING OF MATERIALS IN THE ENTRANCE OF BUNKERS

 The invention relates to a technique for the automatic control of production processes, in particular, to devices for transporting materials, and can be used when loading materials into feed bins.

A device for controlling the loading of materials into feed bins is known, comprising a sensor for upper and lower levels of material in feed bins, a program switch, a clock generator and a control unit for the transport mechanism p.

A disadvantage of the known device is that in it the mechanism is turned on when the material level drops to the lower level and the shutdown is at the upper level of the material in the bunker and the current time of day is not taken into account.

It is also known a device for controlling overloading of materials into feed bins, comprising sensors for upper and lower levels of material in bins.

Connected to the control unit of the transport mechanisms and materials feeders 2.

The loading of bunkers using this device is carried out more evenly, since for control it uses information not only about the limiting levels - lower and upper, but also the material to be distributed in the bunkers, from which the bunker with the minimum intermediate level, is loaded first.

However, this device also does not take into account the current time of day. At the same time, at certain times of the day, rush hours are created in the enterprise power supply systems, when the power consumption is maximum. When peak-load mechanisms of various flow-transport systems are used during the peak hours, the cost of electricity consumed for transporting materials to service bins increases. 3 G9 The purpose of the software is to reduce the transport cost of the loaded materials by redistributing the consumption of electricity. This goal is achieved by the fact that the device is equipped with a software block for taking into account the maximum load in the power system, setting the material amount, determining the loading time of materials, an adder and a time control sensor (the amount of material connected to the material loading time determinants, the outputs of which through; the adder connected to One of the inputs of the program block for recording the maximum load in the Grid, to the other input of which the sensor of the monitoring time Ktevfti is connected, and with its output is connected The drawing shows a functional diagram of the device. The device contains a unit 1 controlling transport mechanisms and occupants, a software unit 2 taking into account the maximum load in the power system, setting devices 3 for the amount of material consumed during peak hours; time determinants 4 materials load, adder 5, sensors of the upper b and 7 lower levels of the ma- terial in the supply bins 8 (number of MoiKeT bunkers can be any, three are taken as measure) sensor 9 control time. The drawing shows a loading system containing conveyors 10 with eleK | Troc 11 and launchers 12, feeders 13 mg materials with electric motors 14 and starting pairs 7, material distributor 16 with gates 17, drive 18 and starting Apparatus 19. The loading system may be different, which is of no fundamental importance for the implementation of the control device according to the invention. Outputs of setters 3 are connected to time determinants 4 connected by their outputs with corresponding inputs of adder 5. Output of cyMMiaTOpa 5 is connected to one of the inputs of program 1 unit 2, to another input of which control output 9i of the control is connected, time, and output of block 2 is connected to the unit 1. Sensors 6, 7 of the upper and lower levels of materials in consumable bunkers 8 are also connected to the inputs of block 1. 8 The specific implementation of the device elements may be different. The setting units 3 can be performed in 1SH1 in the form of resistor decadal voltage dividers with switches, which will be removed from the flow from which will be proportional to the amount of the material to be set. Time determinants in this case are performed as multipliers for a constant coeffi cient, any adder can be used as an adder. A standard adder with the necessary parameters. Dutch 9 can be issued in the form of an electric pulse counter, which receives minute pulses from the plant-wide system. Or urban electroplasty, and when: their absence is supplied with its own pulse generator. Unit 2 is embedded in the V1 voltage converter — the number of pulses and relay elements. The device works as follows. In the normal loading mode, level 6, 7 level controllers monitor the presence of materials in the bunkers 8. When the material level in any of the bins 8 drops to the lower level, unit 1 commands the corresponding starting devices 12, 15, 19 of the engines 11, 14, 18 conveyors Yu, feeders 13 and closures 17. The loading mechanisms are turned on and the material penetrates into the feed bin 8. When the material reaches the upper level in the bunker 8, unit 1 issues a command to stop the first feeder 13, and after the time delay to stop all other meha.ni mov. Before you start the device. on sets 3, the amount of material consumed from the corresponding hopper during the time is set. Kie which energy consumption in the power system, the maximum, ie, during peak time. This amount of material is established empirically. The signals from setpoint 3 are fed to time determinants 4, where they are multiplied by a factor proportional to the time of material transport from the feeder to the bunsepa, which is also determined by experience. As a result, at the output of each of the time determinants 4 there is a hgnal, HanpHiviep voltage proportional to the required loading time for this material in an amount sufficient to conduct the process during the peak time without loading the feed hopper. These signals are summed by adder 5, and in software block 2 are converted into a number of pulses proportional to the total material loading times in all bins in the quantity necessary to work in peak hours. The pulses are remembered in block 2 and transferred to the counter of sensor 9. The counter capacity is selected based on the fact that its overflow with pulses from the clock network ((minute pulses)) occurred at the moment when the peak remains until a certain time. impulses received from block 2. Thus, the sensor 9 operates in real time scale and at the onset of the moment when, prior to the beginning of the time, the peak of the electric power consumption in the system remains at a load. the amount of material generates a signal arriving through software block 2 in block 1 of etching by mechanics. As a result, the bunker receives the necessary quantity of material, is eliminated by loading them in hours, and the power consumption is reduced, which leads to a decrease in the cost of transport. materials, and also creates the possibility of eliminating the shortage of electric power in hours. Its maximum: npiv. child. FORM u and a 3 o brie n and a device for controlling the loading of materials in feed bins, containing sensors top and n At higher levels of material in bunkers, connected to the control unit of transporting mechanisms and material supplyers, characterized in that, in order to reduce the cost of transporting the loaded materials by redistributing the power consumption time, it is equipped with a software unit for accounting for the maximum load in the power system, of material, determinants of loading time of materials, adder and dates of time control, and the quantity of material is connected to the determinants of load times whose outputs are connected. through an adder to one of the inputs of the program block: taking into account the maximum load in the power system, to the other Bkoru of which the time control sensor is connected, and the control unit of the transport mechanisms and materials supply is connected to its output. - .. -, Sources of information taken into account during the examination 1. USSR author's certificate No. 326544, cl. 6 05 V 11/01, B 65 G 65/32, 1969. 2. USSR author's certificate No. 546 849, cl. (3 О 5 В 11 / ОО, В 65 Q 65/32, 1974 (prototype).