I. Overview
The UL type instrument detects, alarms and controls powder, granular and block materials in the open silo and the closed silo. After long-term operation in industries such as steel, refractory, cement, rubber, chemical fiber, power, etc., all have achieved ideal results and are widely used in industrial production.
The UL-type instrument is a mechanical instrument with simple structure, high temperature resistance, dust resistance, impact resistance, no complicated electrical circuits, reliable control and long-term operation.
2. Working principle
The UL level gauge uses a swing transmission system. When the detection board is blocked, the spindle is blocked and still, the motor continues to run, and the trip unit is tripped, causing the switch to cut off the motor power supply, the motor stops working, and sends out a level signal.
When the level drops, the resistance of the inspection board disappears, the trip unit is reset, the motor resumes work, the level signal is sent out, and the meter is in the detection state. When the level changes slowly, a timer can be installed in the instrument to make the detection of the instrument in an intermittent working state, which can reduce power consumption and wear and extend the life of the instrument.
Third, the scope of application
1. Power industry: raw coal lump, coal dust removal ash;
2. Iron and steel industry: metal powder, particles, steel balls, ore, coke;
3. Construction industry: cement, lime, clay, sand, gypsum;
4. Chemical light industry: salt, tobacco, wood chips, fertilizer, carbon black;
5. Plastic industry: plastic pelletizing, plastic balls, bakelite powder, plastic powder;
6. Food processing industry: rice, wheat, beans, sugar;
7. Pharmaceutical industry: medicines, pills, pills, medicine fen;
8. Food industry: milk powder, sugar, candy, biscuits.
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