SU1174768A1 - Weighing batcher of continuous astion - Google Patents

Description

1 flange and top cap reinforced. Second bellows, partly filled with damping fluid.

The invention relates to a weight measuring technique, namely, devices dp weighting a continuously incoming load in the process of its supply. The purpose of the invention is to improve the accuracy by counting the moisture content of the material. FIG. 1 shows the furimonial scheme of the device of FIG. 2 is a diagram of the damping element. On the housing 1, the loading hopper 2 is strengthened. The weighing tray 3 is kinematically connected to the housing 1 by means of the first two-arm lever 4 pivotally mounted on the housing 1, which, in turn, is kinematically connected to the core 5 of the first inductive sensor 6 by a damping element 7, including the measuring rod 8, the mounting flange 9 (FIG. 2), an throttling channel 10, a regulating screw, 11, a cylindrical guide 12, a lower cap 13, an upper cap 14, a fitting 15, a threaded bore 16, a first sylph 17, a second bellows 18 and a damping fluid 19 filling the first and second bellows L7 and 18 The core 5 of the first inductive sensor 6 is hingedly connected to the second two arms lever 20, pivotally mounted on the housing 1. At the free end of the second two arms 20 is installed The first counterweight 21, having the ability to move and -fixes and .. The moisture meter 22 has a zone 23 with an input calibrated orifice 24 and an output calibrated orifice 2S, a third two-arm lever 26, a fourth two-arm lever 27, a second measuring pin 28, damping element 29, identical to the damping element 7, inductive sensor 30, having a core 31 and a counterweight 32. The moisture meter switch 33, mounted on the housing 1, is connected between the inductive sensor 30 and the first integrator 34. The outputs of the first integrator 34 are connected respectively to the first input of the multiplication unit 35 and a humidity indicator 36. The output of the inductive sensor 6 is connected to the input of the integrator 37, the outputs of which are connected to the second input of the multiplier 35 and the input of the indicator 38 of the total flow. The output of the multiplier 35 is connected to the input of the indicator 39 of the reduced performance (performance with regard to humidity). A selection opening 40, made in the weighing tray 3, is provided with a grid 41, through which the bulk material 42 is selected. I. I The device operates as follows. The measuring bulk material (e.g., grain) is loaded into the hopper 2, from which it falls into the weighing tray 3. The weighed material flow, the pad into the weighing mass 3, causes it to deviate from its original balanced position and moves the first two shoulders lever 4, which through the damping element 7 deflects the core 5 of the inductive sensor 6. The initial position of the core 5 is established by means of the counterweight 21. From the inductive sensor 6, the electrical signal 37 is taken to integrator 37, the values and which is proportional to the deviation of the core 5 from the initial position, i.e. current value of the mass of material being transferred. In the integrator 37, the mass is integrated over the time of the material passing through the weighing trough 3, and from the output of the integrator 37 to the first input of the multiplier 35 and the input of the indicator 38, an electric signal is taken 3, the value of which is proportional to the consumption of the material. The indicator 38 displays and records (remembers) the amount of material consumption. A moisture meter 22 is provided for measuring the mass and consumption of a material having a humidity higher than normalized. Through the grid 41, through a selective hole 40 made in the weighing tray 3, some part of the bulk material 42 is continuously fed into the funnel 23 that has the upper a calibrated orifice 24 of larger diameter than the lower calibrated orifice 25, which ensures a continuous overflow of the funnel 23, providing a dynamic constancy of the volume of the material poured in it (within known limits). The excess bulk material passing through the funnel 23 enters the common flow. The moisture meter 22 is balanced by means of the counterweight 32 so that when the normalized (initial) moisture of the measured bulk material: 42 the core 31 of the sensor 30 is in the initial (middle) position and the moisture meter switch 33 is turned off. When the moisture content of the measured bulk material 42 deviates from the normalized value, the mass in the funnel 23 varies, since the volume of the sample to be taken (dynamic value) is constant (within the calculated tolerances). For example, as the humidity increases, the sample mass in the funnel 2.3 684 increases, causing the third double-arm lever 26 to deflect downward (the end of the lever 26, on which the funnel 23 is mounted). As a result, a moisture meter switch 33 triggers, connecting the output of sensor 30 to the input of the first integrator 34, the core 31 deflecting downward and an electrical signal from sensor 30 to integrator 34, the value of which corresponds to the moisture content of the measured granular material 42. the humidity values over wider limits (with deviations from the normalized value in the direction of increase or decrease), the moisture meter switch 33 is set when operating in the on position. From the output of the integrator 34, the second input of the multiplier 35 and the input of the humidity indicator 36 receive an electrical signal, the value of which corresponds to the measured humidity. The humidity indicator 36 indicates the moisture content of the measured bulk material 42 in percent. In the multiplier 35, the magnitude of the total consumption of the measured bulk material 42 is multiplied by its moisture coefficient. From the output of the multiplier 35 to the indicator 39, an electrical signal is applied, the value of which is indicated on the indicator 39 and corresponds to the total consumption, taking into account the actual moisture content of the measured bulk material.

Irania

sixteen

15

/ 3

at

IP

FIG. g

Claims (2)

1. DEVICE FOR MEASURING THE CONSUMPTION OF BULK MATERIALS IN THE FLOW, containing a weighing tray, kinematically connected by means of a damper to the core of the inductive sensor, and an indicator of the total flow rate, differing in that, in order to improve accuracy by taking into account the moisture content of the material, the first lever with a weight measuring tray mounted on it and the second lever with a counterweight, interconnected by a core, an inductive sensor and a damper, a moisture meter, two integrators, a multiplier and moisture indicators and the given productivity, moreover, the moisture meter is made in the form of a sampling funnel with calibrated holes mounted under one weight arm on one arm of the third lever of the sampling funnel, a switch in contact with the other arm of the third arm, and an inductive sensor, the core of which is connected at one end through an additional damper to the third arm - and at the other end - with one shoulder of the fourth lever, on the other shoulder of which a counterweight is installed, and the inductive sensor of the hygrometer through the switch is connected to the first integrator, one output of which is connected to a humidity indicator, and • the other to the first input of the multiplier, the inductive sensor of the load measuring tray is connected to the input of the second integrator, one output <g of which is connected to the total flow indicator, and the other to the second input of the multiplier , the output of which is connected to the indicator of reduced productivity, while the weighing tray is made with a hole on the side of the sampling funnel. 2. The device according to π. 1, characterized in that each damper is made in the form of a mounting flange with throttling channels, an adjusting screw and a passage guide, in which a rod is mounted fastened at one end with a hinge of the corresponding lever and a lower plug, and the other end through a threaded hole in the upper plug - with the lower end of the core of the corresponding inductive sensor, between the lower part of the mounting flange and the lower plug is installed the first bellows filled with damping fluid, and between the upper part of the pezhego tychny filled with damping fluid. [flange th upper plug 'reinforced. second bellows, part-