A kind of automatic determination device of ore pulp sedimentation curve based on PLC

Abstract

The utility model provides a kind of automatic determination device of ore pulp sedimentation curve based on PLC, including shell, the shell is equipped with measuring cylinder, the measuring cylinder is vertically arranged, its both sides are equipped with first plugboard, second plugboard and first light shield respectively, the first plugboard is equipped with adjustable emission light source to the side wall of measuring cylinder, the second plugboard is equipped with several photosensitive switches to the side wall of measuring cylinder, the rest two sides of the measuring cylinder are equipped with the second light shield and third light shield, the shell top is equipped with cover, the cover middle part is equipped with stirring paddle, the stirring paddle top is equipped with driving motor. The utility model can realize ore pulp sedimentation line accurate determination, solve the traditional ore pulp sedimentation curve determination test operation tedious, operation failure is more, sedimentation line is not accurate, test personnel eye overuse and so on, with simple structure, the characteristics of convenient operation, strong practicality.

Description

Technical Field

[0001] This utility model belongs to the field of mineral processing equipment technology, and relates to an automatic measurement device for slurry settling curve based on PLC. Background Technology

[0002] Traditional slurry settling tests are conducted in the laboratory, typically using 1000-2000ml glass graduated cylinders. A grid paper is affixed to the outer surface of the cylinder to indicate the settling height. Measurements are taken under sufficient lighting conditions using a stopwatch, and the settling line height is observed visually. Measurements are usually taken every 20-30 seconds. The drawbacks of this method are as follows:

[0003] (1) Inaccurate measurement and low precision; because the settling height is marked by the grid paper pasted on the outside of the graduated cylinder, the bottom surface of the graduated cylinder of 1000ml and above is not flat, and the bottom height is not easy to be accurately identified, which can easily cause height difference, thus resulting in inaccurate height. Some slurry settling lines are not obvious and the position of the settling line cannot be determined by the naked eye, making it impossible to measure. Moreover, the slurry settling line is always in a moving state, and manual reading is prone to large errors.

[0004] (2) There are many operational errors; due to the rapid settlement speed in the early stage, the measurement frequency is once every 20-30 seconds. The operator needs to look at the stopwatch and the settlement line position at the same time, and record the time and height data. This makes it easy to make operational errors. Problems such as missed readings, misreadings, delays, and incorrect correspondence between time and height are hard to avoid.

[0005] (3) The operation process is tense and rushed; the operator prepares the slurry and pours it into the measuring cylinder. The operator needs to use a stirring tool to stir it. The initial data is read immediately after stirring is completed. There is no connection time between the operation process. Since the operator must always face the corresponding position of the grid sticker, the position is limited. The operator can only read the time and read the settlement line height at the same time. At the same time, the operator must also record the data or report the data to the recorder. The whole operation process requires a high degree of concentration, is tense and rushed.

[0006] (4) Excessive eye strain; Since strong light is required to see the settlement line during the settlement process, and the operator needs to keep a close eye on the stopwatch and the position of the settlement line and the corresponding grid line reading throughout the process, the operator's eyes need to be highly focused. This usually takes 10-30 minutes or even 1 hour. Due to the excessive eye strain, the operator usually experiences eye discomfort or even stinging after the settlement process is over. In order to increase the accuracy of the results, the settlement process usually needs to be measured 2-3 times, which further increases the eye strain.

[0007] (5) It consumes manpower; the settlement speed is slow in the later stage of settlement. Even if the settlement drops by 2mm in 10 minutes, the operators still need to observe, which consumes manpower.

[0008] To address the aforementioned deficiencies in the prior art, this utility model proposes an automatic slurry settling curve measuring device that is simple in structure and easy to operate. Utility Model Content

[0009] The purpose of this invention is to address the problems existing in the prior art by providing an automatic measurement device for slurry settling curves based on PLC. This device solves the problems of easy errors in the operation process of traditional methods for measuring settling lines in slurry settling tests, resulting in inaccurate and low-precision measurement results, as well as the high manpower consumption.

[0010] Therefore, the present invention adopts the following technical solution:

[0011] An automatic slurry settling curve measuring device based on PLC includes a housing, inside which is a measuring cylinder. The measuring cylinder is vertically arranged, and on its two sides are respectively provided a first insert plate, a second insert plate, and a first light-shielding plate, which are arranged in parallel. The first insert plate is provided with an adjustable emission light source on the side wall corresponding to the measuring cylinder, and the second insert plate is provided with several photosensitive switches on the side wall corresponding to the measuring cylinder. Specifically, the adjustable emission light source is provided with a knob.

[0012] The measuring cylinder has a second light-shielding plate and a third light-shielding plate arranged in parallel on the other two sides. The two plates are perpendicular to the first insert plate and are inserted above the first insert plate, the second insert plate and the second light-shielding plate. Specifically, the second light-shielding plate and the third light-shielding plate are the same in shape and size. The first insert plate, the second insert plate and the first light-shielding plate are the same in shape and size.

[0013] The first light-shielding plate has a slot at the position corresponding to the first insert plate, the second insert plate, and the second light-shielding plate, and the depth of the slot is greater than the height of the housing; the first insert plate and the second light-shielding plate are located on the same side of the measuring cylinder, and the second insert plate is located on the opposite side of the measuring cylinder; the inner wall of the housing has a number of slots, which are vertical and used to insert the first insert plate, the second insert plate, the first light-shielding plate, and the second light-shielding plate.

[0014] The top of the housing is provided with a cover, a stirring paddle is inserted through the middle of the cover, a drive motor is provided on the top of the stirring paddle, and the two are connected by an electric drill chuck. An adjustable electric push rod is provided on the top surface of the cover.

[0015] This utility model also includes a PLC controller, which is electrically connected to an adjustable emitting light source, a photosensitive switch, a drive motor, and an adjustable electric push rod.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention enables accurate measurement of slurry settling lines, solving the problems of cumbersome operation, frequent operational errors, inaccurate settling line judgment, and excessive eye strain for test personnel in traditional slurry settling curve measurement experiments. It features a simple structure, convenient operation, and strong practicality. Specifically:

[0018] (1) Improved measurement accuracy: Based on the photosensitive principle, this utility model utilizes the large difference in slurry concentration above and below the settling line, which in turn leads to a large difference in slurry transmittance above and below the settling line. By using the action of the photosensitive switch, the position of the settling line can be determined, and the real-time measurement accuracy can reach 3mm. After correction by the settling curve generated by the program, the error can be reduced to 1mm / minute.

[0019] (2) Easy to operate: This utility model achieves one-click operation by automatically recording and analyzing data, and automatically generates settlement curves. The operation is simple and convenient.

[0020] (3) Reduce experimental operation errors and experimental errors: Since this utility model can automatically identify and record the position of the settlement line, it reduces the errors and mistakes caused by human judgment of the settlement line position, avoids the asynchronous error of the three actions of checking the time, judging the settlement line, and the correspondence between the settlement line position and the height during human operation, and avoids the problems of missed reading and misreading caused by too many operations by personnel in a short period of time.

[0021] (4) High practicality: This utility model is easy to manufacture, convenient and reliable to operate and maintain, and has high versatility. It can be applied to a full range of settlement line measurement experiments without modification. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model after removing the light-shielding plate;

[0023] Figure 2 This is a top view of the structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the main structure of the second light-shielding plate of this utility model.

[0025] In the diagram, 1-shell, 2-adjustable light source, 3-photosensitive switch, 4-slot, 5-PLC controller, 6-drive motor, 7-adjustable electric push rod, 8-stirring paddle, 9-drill chuck, 10-cover, 11-first insert plate, 12-second insert plate, 13-knob, 14-measuring cylinder, 15-second light shield, 16-first light shield, 17-third light shield. Detailed Implementation

[0026] The technical solution of this utility model will be described below with reference to the accompanying drawings and implementation methods.

[0027] like Figure 1 and 2 As shown, an automatic slurry settling curve measuring device based on PLC includes a rectangular shell 1 made of acrylic sheet with dimensions of 20cm*10cm*60cm. A measuring cylinder 14 is installed inside the shell 1, vertically positioned, with a first insert plate 11, a second insert plate 12, and a first light-shielding plate 16 on its two sides, arranged in parallel. The first light-shielding plate 16 is in close contact with the side wall of the measuring cylinder 14. Specifically, the first insert plate 11 and the second insert plate 12 are located on opposite sides of the measuring cylinder 14, and the first light-shielding plate 16 is located on the same side of the measuring cylinder 14 as the first insert plate 11, with the distance between the first light-shielding plate 16 and the measuring cylinder 14 being less than the distance between the first insert plate 11 and the measuring cylinder 14.

[0028] The first insert plate 11 has an adjustable light source 2 on the side wall of the measuring cylinder 14, and the adjustable light source 2 has a knob 13. Specifically, the adjustable light source 2 adopts an adjustable LED light strip light source, and the light intensity can be controlled by the knob 13. The continuous light source is evenly arranged in the vertical direction to ensure that the light intensity in the vertical direction is uniform. Since it is installed on the first insert plate 11, it can be inserted into different positions of the housing 1 as needed to control the distance between the adjustable light source 2 and the measuring cylinder 14. The second insert plate 12 has 130 photosensitive switches 3 on the side wall of the measuring cylinder 14. Specifically, the 130 photosensitive switches 3 are arranged in a close vertical arrangement and numbered sequentially, with an interval of 3mm between adjacent photosensitive switches 3.

[0029] The measuring cylinder 14 has a second light-shielding plate 15 and a third light-shielding plate 17 arranged in parallel on the other two sides. The two plates are perpendicular to the first insert plate 11 and are inserted above the first insert plate 11, the second insert plate 12 and the first light-shielding plate 16. At the same time, the second light-shielding plate 15 and the third light-shielding plate 17 are in close contact with the side wall of the measuring cylinder 14. Specifically, the second light-shielding plate 15 and the third light-shielding plate 17 are the same in shape and size, and the second light-shielding plate 15 is higher than the measuring cylinder 14. The first insert plate 11, the second insert plate 12 and the first light-shielding plate 16 are the same in shape and size, and the first insert plate 11 is at the same height as the measuring cylinder 14.

[0030] like Figure 3 As shown, the second light-shielding plate 15 is provided with a slot at the position corresponding to the first insert plate 11, the second insert plate 12, and the first light-shielding plate 16, and the depth of the slot is greater than the height of the shell 1. Since the distance between the first insert plate 11, the second insert plate 12, the first light-shielding plate 16 and the measuring cylinder 14 is not the same due to different concentrations and sedimentation media being measured, the slots of the second light-shielding plate 15 should be customized in advance according to different measurement tests to determine their slot positions.

[0031] The inner wall of the housing 1 is provided with several slots 4, which are vertical and are used to insert the first insert plate 11, the second insert plate 12, the first light shield 16, the second light shield 15 and the third light shield 17.

[0032] The top of the housing 1 is provided with a cover 10, and a stirring paddle 8 is inserted through the middle of the cover 10. A drive motor 6 is provided on the top of the stirring paddle 8, and the two are connected by an electric drill chuck 9. An adjustable electric push rod 7 is provided on the top surface of the cover 10.

[0033] This utility model also includes a PLC controller 5, which is electrically connected to an adjustable emitting light source 2, a photosensitive switch 3, a drive motor 6, and an adjustable electric push rod 7.

[0034] The usage process of this utility model is as follows:

[0035] First, according to the required concentration, sedimentation medium and other requirements, the material to be tested is prepared into a slurry. The prepared slurry is poured into a measuring cylinder 14 and placed into the housing 1. After the surface of the slurry is calm, the first light-shielding plate 16 is inserted at the height of the slurry in the housing 1. This height is taken as the initial measurement height.

[0036] Secondly, a first insert plate 11 and a second insert plate 12 are inserted on both sides of the first light-shielding plate 16, and a second light-shielding plate 15 and a third light-shielding plate 17 are inserted on the other two sides of the measuring cylinder 14. The first light-shielding plate 16, the second light-shielding plate 15 and the third light-shielding plate 17 are all in close contact with the side wall of the measuring cylinder 14.

[0037] Next, adjust the light intensity of the adjustable light source 2, and observe the indicator lights on the PLC controller 5 to ensure that the photosensitive switch 3 above the sedimentation line is activated and the photosensitive switch 3 below the sedimentation line is not activated. Cover the cover 10 of the measuring device frame, press the measuring button on the PLC controller 5, and the stirring paddle 8 will start working. Set the mixing cycle and wait for it to stop working before performing sedimentation measurement.

[0038] Finally, since the photosensitive switch above the settling line is activated while the photosensitive switch below the settling line is not activated, the height of the settling line can be determined based on the interval between the two photosensitive switches before and after settling. When the position of the settling line does not change within 10 minutes, it is determined that the settling has reached its end point and is automatically recorded in the PLC. Finally, by using the photosensitive switch sequence number and activation time of the first and last activations, with time as the horizontal axis and settling height as the vertical axis, a curve plotting program is used by the PLC to draw a complete slurry settling curve.

Claims

1. An automatic slurry settling curve determination device based on PLC, characterized in that, Includes a housing (1), inside which is a measuring cylinder (14). On both sides of the measuring cylinder (14) are a first insert plate (11), a second insert plate (12), and a first light-shielding plate (16). The first insert plate (11) is provided with an adjustable emission light source (2) on the side wall of the measuring cylinder (14), and the second insert plate (12) is provided with a plurality of photosensitive switches (3) on the side wall of the measuring cylinder (14). The measuring cylinder (14) has a second light-shielding plate (15) and a third light-shielding plate (17) on its other two sides respectively. The two plates are perpendicular to the first insert plate (11) and are inserted above the first insert plate (11). The top of the housing (1) is provided with a cover (10), a stirring paddle (8) is provided in the middle of the cover (10), a drive motor (6) is provided on the top of the cover (10), and the two are connected by an electric drill chuck (9). An adjustable electric push rod (7) is provided on the top surface of the cover (10).

2. The automatic slurry settling curve measuring device based on PLC according to claim 1, characterized in that, It also includes a PLC controller (5), which is electrically connected to an adjustable emitting light source (2), a photosensitive switch (3), a drive motor (6), and an adjustable electric push rod (7).

3. The automatic slurry settling curve measuring device based on PLC according to claim 1, characterized in that, The second light shield (15) is provided with a slot at the position corresponding to the first insert plate (11), the second insert plate (12), and the first light shield (16), and the depth of the slot is greater than the height of the shell (1).

4. The automatic slurry settling curve measuring device based on PLC according to claim 1, characterized in that, The first insert plate (11) and the first light shield (16) are located on the same side of the measuring cylinder (14), and the second insert plate (12) is located on the opposite side of the measuring cylinder (14), and the three are arranged in parallel.

5. The automatic slurry settling curve measuring device based on PLC according to claim 1, characterized in that, The inner wall of the housing (1) is provided with several slots (4), which are vertical and are used to insert the first insert plate (11), the second insert plate (12), the first light shield (16), the second light shield (15) and the third light shield (17).

6. The automatic slurry settling curve measuring device based on PLC according to claim 1, characterized in that, The adjustable emission light source (2) is equipped with a knob (13).

7. The automatic slurry settling curve determination device based on PLC according to claim 3, characterized in that, The second light-shielding plate (15) and the third light-shielding plate (17) are the same in shape and size.

8. The automatic slurry settling curve measuring device based on PLC according to claim 1, characterized in that, The first insert plate (11), the second insert plate (12), and the first light shield (16) are all the same in shape and size.

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