Automatic sampling method and device for coal tar

By using a controller that links the loading valve with the electronic signal valve and a rotary automatic drum changing mechanism, the entire coal tar sampling process is automated, solving the problems of poor sample representativeness and safety hazards in manual sampling, and improving efficiency and safety.

CN122409249APending Publication Date: 2026-07-17HUNAN VALIN LIANYUAN IRON & STEEL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUNAN VALIN LIANYUAN IRON & STEEL CO LTD
Filing Date
2026-06-05
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing manual sampling methods for coal tar have problems such as poor sample representativeness, low work efficiency, and significant health and safety risks to personnel.

Method used

By linking the loading valve with the electronic signal valve and combining it with the controller to precisely control the sampling timing and flow rate, and by using a rotary automatic drum changing mechanism, the entire coal tar sampling process is automated, ensuring constant sampling timing and sample representativeness, reducing manual operation and minimizing personnel contact time.

Benefits of technology

It improves the automation level and sample representativeness of coal tar sampling, significantly enhances sampling efficiency, effectively reduces personnel health and safety risks, and ensures safe operation in flammable and explosive environments.

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Abstract

本发明公开了一种煤焦油自动取样方法及装置。方法包括:接收取样准备和模式选择指令,模式包括第一模式和第二模式;响应装车开始信号,开启第一电子信号阀;延时后开启第二电子信号阀取综合样份样;当电子台秤重量增量达到单次综合样份样重量时关闭第二电子信号阀,剩余油样流入当前子样桶;响应装车结束信号关闭第一电子信号阀,并执行换桶:第一模式下保持转盘不动,多车子样收集于同一子样桶;第二模式下转盘转动一个工位。装置包括取样管路、第一电子信号阀、第二电子信号阀、综合样桶、电子台秤、子样桶转盘及控制器。本发明提高了样品代表性和工作效率,减少了人员与有毒物质接触。
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