Liquid level meter probe fixing and cleaning device for flotation column

Abstract

The utility model relates to a liquidometer probe fixing and cleaning device for a flotation column, which belongs to the field of liquidometer auxiliary equipment for the flotation column and comprises the flotation column, a fixing frame, a liquidometer probe and a purging component. The fixing frame comprises a stand column and a fixing frame, the stand column is fixed to the flotation column and is higher than the ore pulp liquid level in the flotation column, the fixing frame is fixed to the stand column, and a frame body is horizontal; a flange plate is arranged at the bottom end of the liquid level meter probe; the fixing frame is provided with bolt holes vertically corresponding to the flange plate, and the liquid level meter probe is fixed to the upper surface of the fixing frame through the flange plate. The purging assembly comprises a flat purging head, and the fan-shaped purging head is clamped and fixed between the fixing frame and the flange plate or fixed to the lower end face of the fixing frame. According to the utility model, the stability and cleanness of the probe of the liquid level meter can be ensured, the detection failure of the liquid level meter caused by shaking and dust accumulation is effectively avoided, and the normal operation function of the liquid level meter is ensured.

Description

Technical Field

[0001] The utility model belongs to the field of auxiliary equipment for a liquid level gauge used in a flotation column, and in particular relates to a fixing and cleaning device for a liquid level gauge probe used in a flotation column. Background Art

[0002] When a flotation column is in use, the slurry level is controlled by an automatic level control system. The level gauge plays a crucial role in this process, continuously and accurately measuring the liquid level within the column and providing real-time level data to the automatic level control system. By precisely monitoring level changes, the system can make timely adjustments to ensure the stability of the flotation process. The level gauge probe of the flotation column is fixed above the liquid surface of the column. It must be stable and not shaken during the detection process to accurately measure the slurry level.

[0003] Diqing City is located in a high-altitude coastal area with low ambient temperatures. The temperature difference between the ambient temperature and the slurry temperature is usually over 30 degrees Celsius. This results in dust and fog being a common feature of the flotation column beneficiation process, making it difficult to manually monitor the level gauge. Even if the level gauge probe becomes loose or shaken, it is difficult to detect. Furthermore, the rising dust and fog directly contact the detection probe. Long-term exposure to this environment can easily form dust particles on the probe surface. Excessive dust adhesion can cause the level gauge to fail. This distortion of the detection signal seriously affects the stable operation of the flotation column liquid level automatic control system, causing fluctuations in the beneficiation process and affecting process indicators. Summary of the Invention

[0004] In order to overcome the problems existing in the background technology, the utility model provides a fixing and cleaning device for a liquid level gauge probe for a flotation column, which not only ensures the stability and cleanliness of the liquid level gauge probe, but also effectively avoids liquid level gauge detection failure caused by shaking and dust accumulation, thereby ensuring the normal operation of the liquid level gauge.

[0005] To achieve the above purpose, the present invention is implemented through the following technical solutions:

[0006] The flotation column level gauge probe fixing and cleaning device includes a flotation column, a fixing frame, a level gauge probe and a purge assembly; the fixing frame includes a column and a fixing frame, the column is fixed on the flotation column and is higher than the slurry level in the flotation column, and the fixing frame is fixed on the column and the frame body is horizontal; the bottom end of the level gauge probe is provided with a flange; the fixing frame is provided with bolt holes corresponding to the upper and lower parts of the flange, and the level gauge probe is fixed to the upper surface of the fixing frame through the flange; the purge assembly includes a flat purge head, and the fan-shaped purge head is clamped between the fixing frame and the flange or fixed to the lower end surface of the fixing frame.

[0007] Preferably, the purge assembly further includes a solenoid valve and a compressed air pipe; the fan-shaped purge head is a flat fan-shaped structure, and a compressed air connection port is provided at the thin end; the compressed air pipe is connected between the solenoid valve and the fan-shaped purge head.

[0008] Preferably, the fan-shaped purge head has a thickness of less than 1 cm.

[0009] Preferably, the fixed frame is a square frame or a circular frame.

[0010] Preferably, the fan-shaped purge head is fixed to the lower end surface of the fixed frame; the fixed frame is provided with a tie hole, and the fan-shaped purge head is fastened to the fixed frame by a tie.

[0011] Preferably, the purge assembly further comprises a control system for controlling the operation of the solenoid valve.

[0012] Beneficial effects of the utility model:

[0013] The utility model provides a flange plate on the liquid level detection head and a fixing frame, so that the liquid level detection head can be firmly fixed above the liquid level of the flotation column through the flange. The fixing structure is firm and effectively prevents the shaking of the liquid level meter probe. The structure of the fixing frame is combined with the use of the flange plate, so that the liquid level detection head will not be blocked after being fixed, thereby ensuring the normal use of the liquid level meter probe while achieving stable fixation of the liquid level meter probe.

[0014] The utility model can realize the purging of the liquid level meter probe by arranging the purging component, effectively prevent the adhesion of dust, and ensure the normal operation of the liquid level meter.

[0015] The utility model is designed for the characteristics of large temperature difference between ore pulp and environment and large amount of dust and fog above the ore pulp, effectively solves the influence of dust and fog on flotation column liquid level detection and ensures stable operation of the production system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of the purge assembly of the utility model;

[0017] Figure 2 This is a diagram showing the connection between the liquid level gauge probe and the purge assembly of the present invention;

[0018] Figure 3 This is a schematic diagram of the flange structure of the liquid level gauge probe of the present invention;

[0019] Figure 4 This is a diagram showing the connection between the fixed frame and the flotation column of the utility model;

[0020] Figure 5 This is a top view of the fixing frame structure of the utility model (the fixing frame is a square frame);

[0021] Figure 6 This is a logic diagram of the operation control of the solenoid valve of the utility model;

[0022] In the figure, 1-flotation column, 2-liquid level gauge probe, 3-column, 4-fixing frame, 5-flange, 6-bolt hole, 7-fan-shaped purge head, 8-solenoid valve, 9-compressed air pipe, 10-tie hole. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and beneficial effects of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to facilitate understanding by technicians.

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "provided with" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on specific circumstances.

[0025] like Figure 1-6 As shown, the flotation column liquid level gauge probe fixing and cleaning device includes a flotation column 1, a fixing frame, a liquid level gauge probe 2 and a purge assembly.

[0026] The flotation column is an existing structure. The flotation column used in this embodiment is a cylindrical structure. The fixing frame includes a column 3 and a fixing frame 4. The column 3 is vertically welded to the flotation column 1 and is higher than the slurry level in the flotation column to ensure that the level gauge probe 2 is higher than the slurry level after being fixed. The fixing frame 4 is vertically welded to the column 3 and the frame body is horizontal after welding to ensure that the level gauge probe 2 is perpendicular to the slurry level after being fixed on the fixing frame 4. A flange 5 is provided at the bottom end of the level gauge probe 2, and bolt holes 6 corresponding to the upper and lower parts of the flange 5 are opened on the fixing frame 4. The level gauge probe 2 is bolted to the fixing frame 4 through the flange 5. After being fixed, the level gauge probe 2 is perpendicular to the slurry level in the flotation column 1. By setting a horizontal fixing frame 4 for the frame body and fixing the liquid level gauge probe 2 with a flange 5, compared with fixing with a fixing rod or a fixing plate, the fixing structure of the utility model can effectively prevent the liquid level gauge probe 2 from shaking while achieving a firm fixation of the liquid level gauge probe 2; and the structure of the fixing frame 4 combined with the use of the flange 5 will not block the liquid level detection head 2 after fixation, thereby ensuring the normal use of the liquid level gauge probe 2 while achieving stable fixation of the liquid level gauge probe 2.

[0027] The purge assembly is used to periodically purge the level gauge probe 2, preventing dust accumulation and keeping it clean. It includes a fan-shaped purge head 7, a solenoid valve 8, a compressed air pipe 9, and a control system. The fan-shaped purge head 7 is a flat fan-shaped structure with a compressed air connection port at the narrow end and a compressed air outlet at the other end. The compressed air pipe 9 is connected between the solenoid valve 8 and the fan-shaped purge head 7. Compressed air is delivered to the fan-shaped purge head 7 through the solenoid valve 8 and the compressed air pipe 9 to purge the level gauge probe 2. The fan-shaped purge head 7 is fixed on the lower end surface of the fixed frame 4. Since the dust formed by the dust mist caused by the temperature difference is relatively loose and easy to blow off, the fan-shaped purge head 7 can achieve a good cleaning effect as long as it can ensure that it can purge the liquid level gauge probe 2. Therefore, the fixing accuracy of the fan-shaped purge head 7 is not required to be high. In this embodiment, 1-3 tie holes 10 are respectively opened on the fixed frame 4 and the fan-shaped purge head 7. The fan-shaped purge head 7 is fixed to the fixed frame 4 with the tie holes, and the wind can blow to the liquid level gauge probe 2.

[0028] The control system is used to control the operation of the solenoid valve 8. The utility model adopts intermittent purging, that is, the liquid level probe 2 is purged periodically, for example, purging for 2 minutes every 2 hours. This technology is mature technology, and any control system that can achieve periodic purging of the liquid level probe 2 can be used. This embodiment lists one of the control systems that can achieve this periodic purging, and the control logic is as follows: Figure 6 As shown: the control system includes a flotation column start button SB1, relays KA1 and KA2, a time-delayed-on relay KT1 and a time-delayed-on relay KT2.

[0029] Preferably, the control circuit is provided with two relays, relay KA1 is the flotation column operation signal relay, that is, KAI is energized after the flotation column is running, and KA2 is the relay for starting the purge solenoid valve 8, that is, after KA2 is energized, the solenoid valve 8 starts to run and the liquid level meter probe is purged.

[0030] Preferably, the control circuit is provided with two delayed-on relays, KT1, which functions as a delayed-on relay for KA2 and KT2. That is, after the KT1 coil is energized, timing begins according to the set delay duration. After timing expires, relay KA2 is turned on, and the KT2 delayed-on relay is also turned on simultaneously. After the KT2 delayed-on relay is turned on, timing begins according to the set purge duration. After timing expires, KT1 is disconnected. After KT1 is powered off and reset, the KA2 relay is disconnected, stopping the purge and simultaneously resetting KT2. After KT2 is reset, KT1 is turned on, and KT1 begins timing the next cycle.

[0031] When the flotation column is started, the delayed on relay KT1 is turned on and the cycle timing begins. The KT1 delay time is set to 2 hours. After 2 hours, the delayed on relay KA2 turns on the solenoid valve 8 to start purging the liquid level gauge probe 2. At the same time, the purge delay relay KT2 is turned on. The KT2 delayed purge setting time is 2 minutes. After 2 minutes, KT2 disconnects KA2 to stop the operation of the solenoid valve 8. At this point, an automatic purge cycle is completed and the next purge cycle begins. The delayed on relay KT1 starts timing the next cycle.

[0032] The fixing frame 4 is a square frame or a circular frame, preferably a square frame, which can be more firmly fixed to the column 3.

[0033] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A device for fixing and cleaning a level gauge probe for a flotation column, characterized in that: The invention comprises a flotation column (1), a fixing frame, a level gauge probe (2) and a purge assembly; the fixing frame comprises a column (3) and a fixing frame (4); the column (3) is fixed on the flotation column (1) and is higher than the slurry level in the flotation column; the fixing frame (4) is fixed on the column (3) and the frame body is horizontal; a flange (5) is provided at the bottom end of the level gauge probe (2); bolt holes (6) corresponding to the upper and lower parts of the flange (5) are opened on the fixing frame (4); the level gauge probe (2) is fixed to the upper surface of the fixing frame (4) through the flange (5); the purge assembly comprises a fan-shaped purge head (7); the fan-shaped purge head (7) is clamped between the fixing frame (4) and the flange (5) or fixed to the lower end surface of the fixing frame (4).

2. The device for fixing and cleaning a level gauge probe for a flotation column according to claim 1, characterized in that: The purge assembly further comprises a solenoid valve (8) and a compressed air pipe (9); the fan-shaped purge head (7) is a flat fan-shaped structure, and a compressed air connection port is provided at the thin end; the compressed air pipe (9) is connected between the solenoid valve (8) and the fan-shaped purge head (7).

3. The device for fixing and cleaning a level gauge probe for a flotation column according to claim 2, wherein: The fan-shaped blowing head (7) has a thickness of less than 1 cm.

4. The device for fixing and cleaning a level gauge probe for a flotation column according to claim 2, wherein: The fixed frame (4) is a square frame or a circular frame.

5. The device for fixing and cleaning a level gauge probe for a flotation column according to claim 4, characterized in that: The fan-shaped blowing head (7) is fixed to the lower end surface of the fixed frame (4); a tie hole (10) is provided on the fixed frame (4), and the fan-shaped blowing head (7) is fastened to the fixed frame (4) by a tie.

6. The device for fixing and cleaning a level gauge probe for a flotation column according to claim 1, characterized in that: The purge assembly also includes a control system for controlling the operating state of the solenoid valve.

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