Mixing early-warning observation device for CCD countercurrent washing thickener
By installing valves and turbidity meters on the walls of the thickener tank, the stability and operational complexity of existing thickener slurry mixing alarm systems have been solved, achieving efficient and reliable early warning functions.
Patent Information
- Application Number
- CN202423255936.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-29
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2034-12-29
AI Technical Summary
The existing slurry mixing alarm system in the thickening tank has a high failure rate, high operational requirements, poor stability, and poor visual observation effect, making it impossible to achieve continuous production.
Valves and turbidity meters are installed by drilling holes in the thickener tank wall and connected to the next thickener through an overflow pipe to monitor the turbidity of the clarification layer in real time and issue warnings via an audible alarm.
It enables deeper observation and more intuitive monitoring, is easy to operate, has a low failure rate, and is capable of continuous observation and rapid repair, making it highly adaptable.
Smart Images
Figure CN223914772U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of thickeners, specifically relating to a CCD countercurrent washing thickener mixing early warning and observation device. Background Technology
[0002] An existing slurry mixing alarm system for thickeners uses multiple turbidity meters and signal converters inserted into the thickener to monitor slurry turbidity. The converters are electrically connected to an external alarm to issue an early warning. This device has a high failure rate, high operational requirements, poor stability, and cannot achieve the goal of continuous production.
[0003] In actual production and application, the surface of the overflow clarified water layer is usually observed with the naked eye. However, the naked eye can only observe about 30cm of the liquid surface, which cannot achieve the effect of early warning. Utility Model Content
[0004] This invention provides a high-efficiency, simple, and practical CCD countercurrent washing thickener mixing early warning and observation device, which can monitor the height of the clarification layer of the thickener, and has the advantages of simple operation, low failure rate, high efficiency, energy saving and practicality.
[0005] To solve the above technical problems, this utility model provides a CCD countercurrent washing thickener mixing early warning observation device, characterized in that: it includes a CCD countercurrent washing thickener (1), valves, a next-stage CCD countercurrent washing thickener (2), overflow pipes and turbidity meter (11); the upper part of the pool wall of the CCD countercurrent washing thickener (1) has multiple holes, which are respectively connected to the overflow weir plane at the upper end of the next-stage CCD countercurrent washing thickener (2) through overflow pipes. Each overflow pipe is equipped with a valve and a turbidity meter to monitor the turbidity of the solution at different depths of the clarification layer. The turbidity meter is connected to an audible alarm.
[0006] Beneficial Effects: This invention involves creating openings in the thickener tank wall, starting 30cm below the overflow plane at the top of the thickener and proceeding downwards at 20-30cm intervals. Valves are installed at each opening for easy shut-off of the pipeline during thickener maintenance. An online turbidity meter is installed in the middle of the pipeline, connected to the overflow weir plane of the next-stage thickener and extending parallel to it for 2-5cm (for easy overflow observation). The clarified solution from different depths in the previous thickener overflows into the overflow weir of the next thickener. The turbidity of the solution is measured by the online turbidity meter, and the digital readings are transmitted to the display screen. When the reading exceeds a certain value, an audible alarm is triggered. This allows for the determination of the clarified layer height in the thickener, thus achieving an early warning purpose.
[0007] (1) Compared with the naked eye observation of the overflow layer of the CCD thickener, the device has the advantages of deeper observation depth, greater convenience, more intuitiveness and easier operation.
[0008] (2) Compared with the electrical control device that goes deep into the thickener, its device has the advantages of simple operation, high efficiency and low failure rate.
[0009] (3) The device has the advantages of continuous observation and real-time observation of the thickener clarification layer.
[0010] (4) The device has the advantages of small space occupation, can be disassembled, easy to disassemble, and simple and quick to repair and replace.
[0011] (5) The number of openings can be increased or decreased according to the height of the thickener wall and the height difference with the next thickener, making it highly variable. Attached Figure Description
[0012] Figure 1 A schematic diagram of the structure of this utility model;
[0013] The components include: 1. CCD countercurrent washing and thickening machine; 2. Next-stage countercurrent washing and thickening machine; 3. First valve; 4. Second valve; 5. Third valve; 6. First overflow pipe; 7. Second overflow pipe; 8. Third overflow pipe; 9. Observation port at the overflow end of the pipe; 10. Overflow weir; 11. Turbidity meter; 12. Display screen; 13. Sound alarm. Detailed Implementation
[0014] To make the purpose, content and advantages of this utility model clearer, the specific embodiments of this utility model will be described in further detail below.
[0015] The present invention proposes a CCD countercurrent washing thickener mixing early warning observation device, which includes a CCD countercurrent washing thickener (1), a valve, a next-stage CCD countercurrent washing thickener (2), an overflow pipe and a turbidity meter (11).
[0016] The CCD countercurrent washing thickener (1) has three holes on the upper part of the tank wall. The holes are opened starting 30cm below the overflow plane at the top of the thickener and gradually downwards, one hole every 20-30cm. Valves are installed at the holes to facilitate closing the pipes during thickener maintenance. An online turbidity meter is installed in the middle of the pipes and connected to the overflow weir plane at the top of the next-stage CCD countercurrent washing thickener (2). The three pipes extend forward parallel to each other for 2-5cm (for easy observation of the overflow). The clarification layer solution of different depths in the previous stage thickener overflows into the overflow weir of the next stage thickener through the pipes. The turbidity of the solution is measured by the online turbidity meter, and the turbidity meter transmits the digital data to the display screen. When the digital value exceeds a certain value, an audible alarm is triggered. The height of the clarification layer in the thickener is determined, thereby achieving the purpose of early warning.
[0017] Working principle: When the CCD countercurrent washing thickener is operating normally and overflow occurs, the first, second, and third valves (3, 4, 5) are opened. The clarified liquid at different depths inside the CCD countercurrent washing thickener (1) flows out sequentially through the first, second, and third overflow pipes (6, 7, 8). The liquid is measured by an online turbidity meter (11), and the turbidity value is transmitted to the display screen (12). When the turbidity value exceeds a certain value, an audible alarm (13) is triggered. Based on the turbidity meter measurement value fed back on the display screen, the height of the clarified liquid layer is determined, thereby providing an early warning and giving the CCD countercurrent washing thickener sufficient adjustment time to prevent mixing.
[0018] The operation steps are as follows:
[0019] 1. When the CCD countercurrent washing thickener is operating normally and overflow occurs, open the first, second, and third valves (3, 4, 5).
[0020] 2. CCD countercurrent washing thickener (1) The clarified liquid at different depths in the upper layer (non-overflow weir) flows out sequentially through the first, second and third overflow pipes (6, 7, 8). The liquid is measured by an online turbidity meter (11), and the turbidity value is transmitted to the display screen (12). When the turbidity value exceeds a certain value, an audible alarm (13) is triggered.
[0021] 3. The upper layer of clarified liquid comes to the overflow weir end face of the next stage CCD countercurrent washing thickener (2), and the clarified liquid enters the overflow weir (10) of the next stage thickener. At the same time, at the observation port (9), they are arranged in a row in a neat row, and the turbidity of the flowing clarified liquid can also be observed.
[0022] 4. Based on the turbidity meter readings displayed on the screen, determine the height of the clarified liquid layer and trigger an alarm (13) to provide a warning and allow sufficient adjustment time for the CCD countercurrent washing thickener to run mixed.
[0023] Specifically: If the solution is acidic, the pipes and valves should be made of acid-resistant and corrosion-resistant materials. The diameter of the overflow pipe should not be too large or too small; DN40-DN60 is recommended.
[0024] If there is an overflow weir at the opening location in the thickener tank wall, the pipe passes through the overflow weir and enters the innermost layer of the thickener.
[0025] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A CCD countercurrent washing thickener mixing early warning and observation device, characterized in that: It includes a CCD countercurrent washing thickener (1), valves, a next-stage CCD countercurrent washing thickener (2), overflow pipes, and a turbidity meter (11). The upper part of the pool wall of the CCD countercurrent washing thickener (1) has multiple holes, which are connected to the overflow weir plane at the upper end of the next-stage CCD countercurrent washing thickener (2) through overflow pipes. Each overflow pipe is equipped with a valve and a turbidity meter to monitor the turbidity of the solution at different depths of the clarification layer. The turbidity meter is connected to an audible alarm.
2. The CCD countercurrent washing thickener mixing early warning observation device according to claim 1, characterized in that: The CCD countercurrent washing thickener (1) has multiple holes for connecting overflow pipes on the upper part of the tank wall. The holes are opened at intervals from a certain distance below the overflow plane at the top of the thickener.
3. The CCD countercurrent washing thickener mixing early warning observation device according to claim 1, characterized in that: The opening positions start 30cm below the overflow plane at the top of the thickener and proceed downwards, with one opening every 20-30cm.
4. The CCD countercurrent washing thickener mixing early warning and observation device according to claim 1, characterized in that: Install a valve at the opening.
5. The CCD countercurrent washing thickener mixing early warning observation device according to claim 1, characterized in that: Multiple pipes extend forward parallel to each other, 2-5 cm from the surface of the overflow weir.
6. The CCD countercurrent washing thickener mixing early warning observation device according to claim 1, characterized in that: The turbidimeter is also connected to a display screen.
7. The CCD countercurrent washing thickener mixing early warning observation device according to claim 6, characterized in that: The turbidity of the solution is measured by a turbidity meter, and the digital readings from the turbidity meter are transmitted to the display screen.
8. The CCD countercurrent washing thickener mixing early warning and observation device according to claim 6, characterized in that: The height of the clarified liquid layer is determined based on the turbidimeter reading, which triggers an audible alarm.
9. The CCD countercurrent washing thickener mixing early warning and observation device according to claim 1, characterized in that: The next-stage CCD countercurrent washing thickener (2) has an observation port (9) on top.
10. A CCD countercurrent washing thickener mixing early warning and observation device according to claim 9, characterized in that: Multiple overflow pipes are arranged in a row at the observation port (9).