SU949481A1 - Dust content meter - Google Patents

Description

(54) DUST

one

The invention relates to a technique for measuring and controlling the dustiness of the environment and can be used in various industries to control the intensity of dust emissions.

Dust collectors are known that contain a dust collector mechanically connected to torsion weights with an inductive transducer for moving the balance beam to an electrical signal amplified by an electronic amplifier and recorded by an electrical measuring device and fl.

A significant disadvantage of dust measurement is the complexity of the design, due to the need for complex and cumbersome torsion weights, an inductive converter, an electronic amplifier, as well as external stabilized power sources for electronic converters and an amplifier circuit.

The closest to the proposed technical essence is a dust meter containing a dust collector mechanically connected to a mechatronic converter, the output electrical signal from which through an electronic amplifier enters the recording electrical measuring device. The dust measurement is carried out due to the displacement of movable anodes of the mechanotron under the action of settling dust. A relatively stationary cathode with an indirect glow of its subsequent amplification of the output signal of the mechatronic converter

0 recording system 2.

A significant drawback of the dust meter is the complexity of the design, due to the need for a mechatronic converter, which is a vacuum system.

 with anodic, cathodic and other electric circuits, and external stabilized power sources for the anodic and filament circuits.

 The purpose of the invention is to simplify the design by eliminating the need for external power sources.

The goal is achieved by .25 that the fe dust gauge containing a dust collector, mechanically connected to the transducer, and a registering device, the transducer is made in the form of two electrodes of dissimilar metals immersed in the electrolyte.

And connected to the dust collector by means of an elastic element.

When different and different standard electrode potentials of the electrodes are immersed in the electrolyte solution, an electrical signal (current) is generated, which is proportional to the contact area of the contact electrode - electrolyte. from the depth of immersion of the electrodes in the electrolyte. And since the depth of immersion of the electrodes in the electrolyte depends on the weight content of dust on the dust collector, mechanically connected through the elastic element to the electrodes, this allows direct removal from the electrodes of an electrical signal (current), functionally reflecting, quantitative dust content on the dust collector. This eliminates the need for external power sources and greatly simplifies the design of the dust meter.

The drawing shows a structural diagram of the dust meter.

The dust meter contains a dust collector 1, which can serve as a filter through which the controlled air-breathing mixture passes, or a dust collecting tank to control the level of dust precipitation (drawing). . Dust collector. mechanically connected with pin 2 through an elastic element (membrane) 3 located in the vessel 4, partially filled with electrolyte solution 5, parallel electrodes 6 and 7, made of dissimilar materials (for example zinc and copper) and respectively having different standard electrode potentials. The electrodes 6 and 7, mounted on a dielectric base 8, are electrically connected directly to a recording electrical measuring device (microammeter) 9.

The dust meter works as follows.

During the deposition of dust particles from the controlled medium on the dust collector 1, under the action of the weight of the deposited particles, a corresponding displacement occurs, and more correctly immersion of the heterogeneous electrodes 6 and 7 mechanically connected through the elastic element 3 with the dust collector 1 into the electrolyte solution 5. and having various standard electrode potentials of electrodes 6 and 7 in the electrolyte due to electrochemical reactions occurring at the electrode phase – electrode boundaries in the external circuit formed by electrodes 6 and 7 and directly attached to them

The recording device 9, an electric current flows, and the magnitude of this current is proportional to the contact area of the contact electrode electrolyte. Thus, depending on the quantitative (weight) content of the mass of dust on the dust collector 1, in proportion to this factor there is a corresponding increase in the immersion of the electrodes 6 and 7 mechanically connected with the elastic element 3 of the electrodes 6 and 7 to the electrolyte 5, i.e. depending on the intensity of dust precipitation, the magnitude of the immersion of the electrodes in the electrolyte varies, and

5, respectively, and the contact area of the electrode is an electrolyte, which ultimately determines the amount of current in the external circuit recorded by an electrical measuring device (microammeter) 9. The electrical signal (current) taken directly from the electrodes b and 7 depends on the amount of dust particles deposited to the dust collector, which allows the scale of the electrical measuring instrument 9, electrically connected directly to the electrolyte 5 and 6 and 7 immersed in the electrolyte, to be calibrated venno units

0 dust.

The proposed dust meter allows, without external power sources with a simple and portable design, continuous monitoring of dust precipitation, and converting the controlled dust parameter directly into a functional electrical signal expands the possibilities of introducing automatic control systems and monitoring the level of dust emissions into the environment.

Claims (2)

1. Measurements in industry. Ed. P. Profos. M., Metallurgy, 1980, p. 573. 2. Authors certificate of the USSR 603880, cl. G 01 N 15/00, 1979 (prototype). ; jX S SVi | I J  B Li /