An open channel pressure filter dewatering flow automatic detection system

By connecting large-range and small-range electromagnetic flowmeters in series and designing an inverted U-shaped detection and assurance tube, the problem of detecting large flow range variations during sludge dewatering in open channel filter presses was solved, achieving automated and accurate flow detection and reducing manufacturing costs.

CN224517850UActive Publication Date: 2026-07-17HUOLINHE OPENCUT COAL IND CORP LTD OF INNER MOGOLIA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUOLINHE OPENCUT COAL IND CORP LTD OF INNER MOGOLIA
Filing Date
2025-08-01
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the existing technology, during the sludge dewatering process of open channel filter press, the flow rate range varies greatly. A single electromagnetic flow meter cannot accurately detect both large and small flow rates at the same time, and it is difficult to make judgments manually and automatically when the flow meters are used in parallel.

Method used

By connecting a large-range electromagnetic flowmeter and a small-range electromagnetic flowmeter in series, and by designing an inverted U-shaped large-flow detection guarantee tube and a small-flow detection guarantee tube, both can be filled with liquid in any flow range, thus achieving automatic detection.

Benefits of technology

It achieves automated detection of sludge dewatering flow rate in open channel filter presses, capable of detecting both large and small flow rates without affecting the effluent flow rate. It has a simple structure, low cost, and is suitable for automated control.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model provides a kind of open channel filter press dewatering flow automatic detection system, belong to flow detection technical field, including vertical water outlet main, the vertical water outlet main is sequentially connected horizontal water outlet main, large flow detection guarantee pipe, horizontal drainage main;The position of the water inlet of large flow detection guarantee pipe is connected small flow branch pipe, the position of the water outlet of large flow detection guarantee pipe is connected small flow guarantee pipe, and the small flow branch pipe is connected with small flow guarantee pipe;The water outlet of small flow guarantee pipe is higher than the water inlet of small flow branch pipe;Large range electromagnetic flowmeter is provided on the horizontal water outlet main;Small range electromagnetic flowmeter is provided on the small flow branch pipe.The utility model connects large range electromagnetic flowmeter and small range electromagnetic flowmeter in series, can automatically detect water large flow, can also automatically detect water small flow, and simultaneously still can not affect the flow of water.
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Claims

1. An open channel filter press dewatering flow automatic detection system, characterized in that, It includes a vertical water outlet main pipe, which is sequentially connected to a horizontal water outlet main pipe, a high flow rate detection and guarantee pipe, and a horizontal drainage main pipe; A small flow branch pipe is connected near the inlet of the large flow detection guarantee pipe, and a small flow detection guarantee pipe is connected near the outlet of the large flow detection guarantee pipe. The small flow branch pipe is connected to the small flow detection guarantee pipe. The outlet of the low-flow detection pipe must be higher than the inlet of the low-flow branch pipe; A large-range electromagnetic flow meter is installed on the horizontal main outlet pipe; a small-range electromagnetic flow meter is installed on the small-flow branch pipe.

2. The open channel filter press dewatering flow automatic detection system of claim 1, wherein, The horizontal section of the high-flow detection and assurance pipe should be lower than the upper inlet of the vertical main outlet pipe.

3. The open channel filter press dewatering flow automatic detection system of claim 1, wherein, The high-flow detection guarantee tube has an inverted U-shaped structure.

4. The open channel filter press dewatering flow automatic detection system of claim 3, wherein, The high-flow detection guarantee pipe includes a vertical inlet pipe, a horizontal flow measuring pipe, and a vertical outlet pipe connected in sequence. The vertical height of the horizontal outlet main pipe is lower than that of the horizontal flow measuring pipe of the high-flow detection guarantee pipe.

5. The open channel filter press dewatering flow automatic detection system of claim 1, wherein, The inlet at the top of the vertical main outlet pipe is connected to the open channel water collection trough.

6. The open channel filter press dewatering flow automatic detection system of claim 1, wherein, The diameter of the high-flow detection guarantee pipe is the same as that of the vertical outlet main pipe, the horizontal outlet main pipe, and the horizontal drainage main pipe.

7. The automatic flow detection system for dewatering in an open channel filter press as described in claim 1, characterized in that, The vertical height of the horizontal flow measurement tube of the high flow detection guarantee pipe should be lower than the upper inlet of the vertical outlet main pipe.

8. The open channel filter press dewatering flow automatic detection system of claim 1, wherein, The diameter of the small flow rate detection guarantee tube is smaller than the size of the large flow rate detection guarantee tube.

9. The open channel filter press dewatering flow automatic detection system of claim 1, wherein, The vertical height of the inlet of the low-flow branch pipe is higher than that of the outlet of the horizontal main outlet pipe.

10. The open channel filter press dewatering flow automatic detection system of claim 1, wherein, All pipe connections are fitted with curved pipe transitions.