一种飞灰密闭取样系统
By designing a closed-loop fly ash sampling system, the problems of environmental pollution, blockage, and insufficient sample representativeness in fly ash sampling were solved. The system achieves full-loop and accurate fly ash sampling, ensuring operational safety and testing reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 云南水富云天化有限公司
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-17
AI Technical Summary
Existing fly ash sampling equipment suffers from environmental pollution, pipeline blockage, insufficient sample representativeness, and difficulty in determining sampling success, which affects the accuracy of testing and environmental control.
A closed-loop fly ash sampling system was designed. By connecting the fly ash conveying pipeline, sampling pipeline, venting pipeline and nitrogen purging pipeline, a closed structure is formed. Nitrogen purging and cleaning pipelines are used to remove blockages, and the sampling status is determined by the pressure gauge.
It achieves a completely closed-loop process for fly ash sampling, avoiding environmental pollution and safety hazards, solving the problem of pipeline blockage, ensuring sample representativeness and sampling accuracy, and is easy to operate.
Smart Images
Figure CN224518258U_ABST
Abstract
Claims
1. A fly ash closed sampling system comprising a fly ash collector (1) and a fly ash bin (2) connected by a fly ash transfer line (L1), characterized in that, The fly ash conveying pipeline (L1) is connected to the sampler (6) via the sampling pipeline (L2), and the sampler (6) is connected to the venting system (14) via the venting pipeline (L4). The sampling pipeline (L2) is sequentially equipped with a first shut-off valve (3), a second shut-off valve (4), and a first check valve (5). A nitrogen purging pipeline (L3) is connected between the first shut-off valve (3) and the second shut-off valve (4). A third shut-off valve (7) and a second check valve (10) are sequentially installed on the nitrogen purging pipeline (L3) from the inlet end. A pressure gauge (12) and a third check valve (13) are installed on the vent line (L4).
2. The fly ash closed sampling system of claim 1, wherein, The sampling line (L2) is threaded to the sampler (6) at its end, and the sampler (6) is threaded to the vent line (L4) via a threaded snap-fit sleeve.
3. The fly ash closed sampling system of claim 2, wherein, The sampler (6) includes a metal outer liner and a porous metal inner liner, with an ash discharge port at the bottom of the metal outer liner.
4. The fly ash closed sampling system of claim 1, wherein, The sampling line (L2) is connected to a cleaning line (L5) after the first check valve (5). The cleaning line (L5) is equipped with a fourth check valve (15) and a flushing line (L6) and a drying line (L7) are connected in parallel at the input end. The flushing line (L6) is equipped with a fourth shut-off valve (16) and the drying line (L7) is equipped with a fifth shut-off valve (17).
5. The fly ash closed sampling system of claim 1, wherein, The nitrogen purging line (L3) is also equipped with a filter (8) and a flow meter (9).
6. The fly ash closed sampling system of claim 1, wherein, The sampling line (L2) has a diameter of 30mm to 35mm, and the nitrogen purging line (L3), venting line (L4), and cleaning line (L5) have a diameter of 8mm to 12mm.