A foam height measuring device

Abstract

The utility model relates to the technical field of alumina production, especially a kind of foamed height measuring device, including support frame body, rope piece and measuring component, measuring component is connected by rope piece and support frame body, measuring component includes connecting piece and measuring piece, and the detachable connection between one end of connecting piece and measuring piece, connecting piece includes backing pad and press plate, press plate is slidably arranged in the side of backing pad, vertical direction channel is provided on backing pad, one end of rope piece is connected in channel, press plate can slide towards backing plate direction, so that rope piece is clamped in connecting piece.In the utility model, vertical direction channel is provided on backing pad, one end of rope piece is connected in channel, press plate can slide towards backing plate direction, after press plate and backing pad are connected, it can make that rope piece is clamped in connecting piece, not only guarantee the connecting strength of rope piece, but also determine the connecting position of rope piece, increase the measurement accuracy of measuring device whole.

Description

Technical Field

[0001] This utility model relates to the field of alumina production technology, and in particular to a foam height measuring device. Background Technology

[0002] In the production of alumina, it is necessary to mix aluminum hydroxide slurry and seed mother liquor. Because the aluminum hydroxide slurry contains impurities such as sodium oxalate and organic carbon, a large amount of foam will be released when the temperature is lowered during the production process, which will affect the production and stable operation of the equipment. It is necessary to judge the foam content during the production process to determine the mixing status of aluminum hydroxide slurry and seed mother liquor.

[0003] The tank contains three substances: aluminum hydroxide slurry, seed mother liquor, and foam. The density of the aluminum hydroxide slurry is 1.6-1.7 g / cm³, the density of the seed mother liquor is 1.27-1.29 g / cm³, and the density of the foam at the top of the tank is 0.4-0.7 g / cm³. Due to its low density, the foam floats to the top. The existing method for measuring the height of the foam is to tie a water-filled mineral water bottle to a rope and lower the bottle into the tank. When the mineral water bottle floats above the seed mother liquor, the tension on the rope decreases. At this point, the mineral water bottle is pulled out, and the length of the rope that has been submerged is the height of the foam.

[0004] In this method, after the measurement is completed, the rope needs to be removed and cleaned, and a new rope needs to be tied to the mineral water bottle. However, it is difficult for workers to keep the position and method of winding the rope consistent each time, and the rope will shake when the mineral water bottle is lying flat on top of the mother liquor, which will affect the measurement accuracy.

[0005] Because the temperature of the aluminum hydroxide slurry and the seed mother liquor remains at 80℃-90℃ after mixing and precipitation, mineral water bottles are prone to deformation under this temperature environment when immersed in the tank for a long time, which often results in a large error when measuring the length of the rope submerged at the end. Utility Model Content

[0006] In view of the technical problems existing in the background art, the purpose of this utility model is to provide a foam height measuring device that can reduce the error generated during foam height measurement.

[0007] To achieve the above objectives, the technical solution provided by this utility model is as follows: A foam height measuring device includes a support frame, a rope, and a measuring component. The measuring component is connected to the support frame via the rope. The measuring component includes a connector and a measuring element. One end of the connector is detachably connected to the measuring element. The connector includes a pad and a pressure plate. The pressure plate is slidably disposed on one side of the pad. The pad has a vertical groove. One end of the rope is connected to the groove. The pressure plate can slide towards the pad, so that the rope is clamped in the connector.

[0008] Preferably, the measuring piece has a recessed connecting groove.

[0009] Preferably, the connector also includes a base plate, one end of which is provided with a plug rod that extends into the connecting groove.

[0010] Preferably, the pad is disposed on the base plate and is perpendicular to the base plate, and the pressure plate is slidably disposed on the base plate and is perpendicular to the base plate.

[0011] Preferably, a groove is provided on the base plate, and a slider is provided at one end of the pressure plate, the slider being connected to the groove.

[0012] Preferably, the pad is provided with a connecting hole I, and the pressure plate is provided with a connecting hole II. The connecting hole I and the connecting hole II are aligned, and an adjusting screw is provided in the connecting hole I and the connecting hole II.

[0013] Preferably, the support frame includes a support frame, an adjusting wheel, and a support wheel. The adjusting wheel is rotatably connected to the support frame, and the support wheel is disposed on the support frame and on one side of the adjusting wheel. The rope is wound around the adjusting wheel and extends out of the adjusting wheel and is engaged in the support wheel.

[0014] Preferably, the support frame is equipped with scissors, and the rope is disposed between the two blades of the scissors.

[0015] This utility model has the following advantages and beneficial effects: In this utility model: 1. A vertical groove is provided on the pad. One end of the rope is connected to the groove. The pressure plate can slide towards the pad. After the pressure plate and the pad are connected, the rope can be clamped in the connector. This not only ensures the connection strength of the rope, but also determines the connection position of the rope, and increases the overall measurement accuracy of the measuring device.

[0016] Second, the bottom of the measuring piece is flat and the inside of the measuring piece is hollow, which makes the measuring piece have a large contact area when it comes into contact with the mother liquor and makes it easy to maintain balance and prevents it from shaking easily, thus greatly increasing the accuracy of the measuring piece during measurement. Attached Figure Description

[0017] Figure 1 This is a front view of a foam height measuring device proposed in this utility model; Figure 2 This is a structural diagram of the support frame of a foam height measuring device proposed in this utility model; Figure 3 This is a structural diagram of the measuring component of a foam height measuring device proposed in this utility model; Figure 4 This is an exploded view of the measuring components of a foam height measuring device proposed in this utility model.

[0018] Reference numerals: 1-Support frame, 11-Support frame, 12-Adjusting wheel, 13-Rock arm, 14-Support wheel, 15-Scissors, 2-Rope, 3-Measuring piece, 31-Connecting groove, 4-Base plate, 41-Insertion rod, 42-Slide groove, 5-Pad plate, 51-Connecting hole I, 52-Channel, 6-Pressure plate, 61-Connecting hole II, 62-Slider, 7-Adjusting screw. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] Example like Figures 1-4 As shown, a foam height measuring device includes a support frame 1, a rope 2, and a measuring component. The measuring component is connected to the support frame 1 via the rope 2. The rope 2 is wound around the support frame 1. The rope 2 is loosened so that the measuring component extends into the tank. When the measuring component floats above the mother liquor, the rope 2 is pulled back, and the length of the rope 2 that is submerged is measured to obtain the foam height.

[0022] like Figures 1-2As shown, the support frame 1 includes a support frame 11, an adjusting wheel 12, and a support wheel 14. The support frame 11 is the main support structure of the entire measuring device. The support frame 11 is assembled by bolts and is installed on the outside of the tank. The adjusting wheel 12 is rotatably connected to the support frame 11. A rocker arm 13 is provided on one side of the adjusting wheel 12. Pushing the rocker arm 13 can make the adjusting wheel 12 rotate. The rope 2 is wound around the middle of the adjusting wheel 12. When the rocker arm 13 is pushed to make the adjusting wheel 12 rotate clockwise, the rope 2 is unwound on the adjusting wheel 12. When the rocker arm 13 causes the adjusting wheel 12 to rotate counterclockwise, the rope 2 tightens on the adjusting wheel 12. The support wheel 14 is mounted on the support frame 11 and is located on one side of the adjusting wheel 12. The rope 2 is wound around the adjusting wheel 12, extends out of the adjusting wheel 12 and is engaged in the support wheel 14. The support wheel 14 has a groove in the middle, and the width of the groove is the same as the diameter of the rope 2. The support wheel 14 can keep the rope 2 stable when it is relaxed on the adjusting wheel 12. If the support wheel 14 is not provided, the rope 2 will inevitably swing when it is relaxed on the adjusting wheel 12, which will affect the measurement quality.

[0023] like Figures 1-4 As shown, the measuring assembly includes a connector and a measuring component 3. One end of the connector and the measuring component 3 are detachably connected. The measuring component 3 has a recessed connecting groove 31. The connector includes a base plate 4, a pad 5, and a pressure plate 6. One end of the base plate 4 is provided with an insertion rod 41, which extends into the connecting groove 31. The insertion rod 41 has a threaded section. The connecting groove 31 is a threaded hole structure. The insertion rod 41 and the connecting groove 31 are connected by threads, which not only simplifies the connection method and makes the connection process efficient, but also provides good sealing. The pad 5 is set on the base plate 4 and is perpendicular to the base plate 4. The pressure plate 6 is slidably set on the base plate 4 and is perpendicular to the base plate 4. The base plate 4 has a sliding groove 42. One end of the plate 6 is provided with a slider 62, which is connected in the groove 42. The groove 42 has a T-shaped structure, and the shape of the slider 62 is consistent with the shape of the groove 42. The T-shaped structure can ensure that the slider 62 only slides in the groove 42 along the direction of the groove 42 and will not detach from the top of the groove 42. The groove 42 only passes through one side of the base plate 4. During the installation of the connector, the slider 62 is first slid into the groove 42 from one side, so that the pressure plate 6 is slidably connected to the base plate 4. Then, the pad 5 is fixedly connected to the base plate 4. The connection method can be plug-in or welding. The pressure plate 6 can move towards the pad 5. Due to the pad 5, the pad 5 can restrict the movement position of the pressure plate 6. The pressure plate 6 can only slide on one side of the pad 5.

[0024] like Figure 1 , Figure 3 , Figure 4As shown, the pad 5 has a connecting hole I 51, and the pressure plate 6 has a connecting hole II 61. The connecting holes I 51 and II 61 are aligned. An adjusting screw 7 is installed in the connecting holes I 51 and II 61. The connecting hole I 51 is a threaded hole. Rotating the adjusting screw 7 changes its position within the connecting hole I 51, thereby changing the position of the pressure plate 6. When one end of the adjusting screw 7 abuts against the pressure plate 6, the pressure plate 6 is pressed tightly against one side of the pad 5. The pad 5 has a vertical groove 5. 2. One end of the rope 2 is connected to the groove 52. The pressure plate 6 can slide towards the pad 5. By rotating the adjusting screw 7, the pressure plate 6 and the pad 5 are connected, which allows the rope 2 to be clamped in the connector. Compared with the winding method of the prior art, this method can fix the connection position of the rope 2 (the end of the rope 2 is supported at the lower part of the groove 52, and the rope 2 is supported in the groove 52). This not only ensures the connection strength of the rope 2, but also determines the connection position of the rope 2, and increases the overall measurement accuracy of the measuring device.

[0025] The measuring element 3 is made of PPO alloy material, which has good heat resistance and a density of 1.06-1.10 g / cm³. When working in the tank, it is not affected by the ambient temperature, ensuring the stability of its structure. The bottom of the measuring element 3 is flat, which gives the measuring element 3 a large contact area when it comes into contact with the mother liquor and makes it easy to maintain balance and prevents it from shaking easily, greatly increasing the accuracy of the measuring element 3 during measurement.

[0026] like Figures 1-2 As shown, a pair of scissors 15 is installed on the support frame 11, and the rope 2 is placed between the two blades of the scissors 15. After long-term measurement, some of the mother liquor will adhere to the rope 2. Frequent cleaning will loosen the internal structure of the rope 2, which will affect the measurement accuracy. After setting the scissors 15, when the rope 2 is observed to be loose, the rope 2 can be cut directly, and then the rope 2 and the measuring component can be reconnected. Working principle: When measuring the foam height, the worker rotates the adjusting wheel 12 to loosen the rope 2, and the measuring component 3 descends into the tank. During the descent, the measuring component 3 tauts the rope 2 due to its own weight. When the measuring component 3 comes into contact with the mother liquor, due to the difference in density, the measuring component 3 will float on the mother liquor, and the tension of the rope 2 will decrease. At this time, the adjusting wheel 12 is reversed to pull the measuring component out of the tank. The worker can then measure the length of the rope 2 that is submerged and the height of the measuring component to obtain the foam height.

[0027] This is merely a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A foam height measuring device, characterized in that: The device includes a support frame, ropes, and a measuring assembly. The measuring assembly is connected to the support frame via the ropes. The measuring assembly includes a connector and a measuring element. One end of the connector is detachably connected to the measuring element. The connector includes a pad and a pressure plate. The pad is connected to the measuring element. The pressure plate is slidably disposed on one side of the pad. The pad has a vertical groove. One end of the rope is connected to the groove. The pressure plate can slide towards the pad, so that the rope is clamped in the connector.

2. The foam height measuring device according to claim 1, characterized in that: The measuring component has a recessed connecting groove.

3. The foam height measuring device according to claim 2, characterized in that: The connector also includes a base plate, one end of which is provided with a plug rod that extends into the connecting groove.

4. The foam height measuring device according to claim 3, characterized in that: The pad is disposed on the base plate and is perpendicular to the base plate. The pressure plate is slidably disposed on the base plate and is perpendicular to the base plate.

5. A foam height measuring device according to claim 4, characterized in that: The base plate is provided with a sliding groove, and one end of the pressure plate is provided with a slider, which is connected in the sliding groove.

6. The foam height measuring device according to claim 5, characterized in that: The pad is provided with a connecting hole I, and the pressure plate is provided with a connecting hole II. The connecting hole I and the connecting hole II are aligned, and an adjusting screw is provided in the connecting hole I and the connecting hole II.

7. The foam height measuring device according to claim 1, characterized in that: The support frame includes a support frame, an adjusting wheel, and a support wheel. The adjusting wheel is rotatably connected to the support frame, and the support wheel is located on the support frame and on one side of the adjusting wheel. The rope is wound around the adjusting wheel and extends out of the adjusting wheel and is engaged in the support wheel.

8. A foam height measuring device according to claim 7, characterized in that: The support frame is equipped with scissors, and the rope is disposed between the two blades of the scissors.

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