Beneficiation backwater pool liquid level subsection control device

Abstract

The utility model belongs to the technical field of beneficiation equipment, and particularly discloses a liquid level subsection control device for a beneficiation backwater pool. A floating ball of the device floats in a water return pool, a base is fixed to the top end of the water return pool and extends inwards, a support is vertically fixed to the base above the water return pool, a steel rope is movably erected on the support, and one end of the steel rope is connected with the floating ball; the balance frame is vertically arranged on the outer side of the water return pool, sensors are arranged on the upper portion and the lower portion of the balance frame, the other end of the steel rope is movably erected on the balance frame and connected with the balance weight, the weight of the balance weight is smaller than that of the floating ball, the balance weight moves up and down along the balance frame under traction of the steel rope and is coupled with the sensors, and the sensors are electrically connected with the liquid level control circuit. The floating ball on the inner side of the water return pool is connected with the balance weight on the outer side of the water return pool through the steel rope, and the sensors are arranged on the balance frame and are coupled with the balance weight, so that a plurality of drainage pumps in the water return pool are automatically started and stopped to prevent backwater from overflowing, and the water return pool has the characteristics of simple structure, automatic control, stable and reliable operation and long service life.

Description

Technical Field

[0001] The utility model belongs to the technical field of ore dressing equipment, and specifically relates to a sectional control device for a liquid level in an ore dressing return water tank with simple structure, automatic control, stable and reliable operation and long service life. Background Art

[0002] Mineral processing wastewater mainly comes from the washing, crushing, grinding, sorting and tailings treatment of ore. Since mineral processing wastewater contains a large amount of suspended matter, soluble salts, heavy metal ions, acids and alkalis and other toxic and harmful substances, direct discharge not only wastes water resources, but also causes serious environmental pollution. Therefore, recycling mineral processing wastewater and achieving harmlessness and resource utilization of mineral processing wastewater can not only effectively save the treatment cost of mining enterprises and generate economic benefits, but also effectively alleviate the impact of mineral processing wastewater on the ecological environment, with high social benefits.

[0003] In order to realize the recycling of mineral processing wastewater, it is necessary to collect the scattered mineral processing wastewater in the return water pool, and then treat it uniformly before recycling it. However, during the normal operation of the return water pool, due to changes in the mineral processing process and wastewater from different sources and different flow rates entering the return water pool, the liquid level of the return water pool is difficult to stabilize, and in severe cases, it even overflows. For this reason, at present, personnel generally rely on visual inspection of the liquid level of the return water pool, and then manually start and stop the drainage pumps one by one to adjust the liquid level of the return water pool, so as to prevent the overflow of the return water and cause environmental pollution incidents. This not only makes the labor intensity of the operators higher and the labor cost higher, but also the inevitable negligence of the personnel will still cause overflow accidents.

[0004] In the prior art, in order to solve the problem of manual control of the liquid level in the return water tank, a plurality of liquid level probes are arranged in a stepped manner in the return water tank or a float switch is set to identify the liquid level in the return water tank, and the liquid level probe or the float switch is connected to the liquid level control circuit to control the drainage pump in the return water tank or the drainage valve outside the return water tank, thereby automatically controlling the liquid level of the return water tank; however, due to the complex nature of the mineral processing wastewater, not only is it easy to corrode the liquid level probe and the float switch, resulting in a short service life of the liquid level probe and the float switch, but also the substances in the mineral processing wastewater are easy to adhere to the liquid level probe and the float switch, resulting in a decrease in the sensitivity of the liquid level probe and the float switch, affecting the reliability of the control. In addition, there is a method in which a connecting plate is vertically fixed on the upper inner side of the return water tank, a slot is provided on the top of the connecting plate, and a first terminal and a second terminal are installed on both sides of the slot, and then a float is provided in the return water tank and the top is rigidly connected to an upper connecting rod and a lower connecting rod that can move up and down along the connecting plate, and then a plug plate that can be inserted into the slot is fixed on the top of the upper connecting rod, and the upper connecting rod is driven upward by the float to insert the plug plate into the slot to connect the first terminal and the second terminal, thereby starting the drain pump or opening the drain valve to prevent overflow; however, since the entire device is arranged above the return water tank, the corrosive steam in the return water tank is still likely to cause the service life of the device to be short, and the single-stage control is prone to overflow accidents due to failure of the drain pump or drain valve and the drainage volume is less than the water intake volume, so the reliability of the liquid level control is low. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a sectional control device for the liquid level of a mineral processing return water tank which has the advantages of simple structure, automatic control, stable and reliable operation and long service life.

[0006] The utility model is implemented as follows: comprising a water return pool and a floating ball, wherein the floating ball floats in the water return pool;

[0007] It also includes a steel rope, a base, a bracket, a balance frame, a sensor, and a balance hammer. The base is fixedly arranged on the top of the return water pool and extends to the inner side of the return water pool. The bracket is vertically fixed on the base above the return water pool. The steel rope is movably mounted on the bracket and one end is connected to the float.

[0008] The balance frame is vertically arranged on the outside of the return water tank, and at least two sensors are respectively arranged on the upper and lower parts of the balance frame. The other end of the steel rope away from the float is movably mounted on the balance frame and connected to the balance hammer. The weight of the balance hammer is less than the weight of the float. The balance hammer moves up and down along the balance frame under the traction of the steel rope and is coupled with each sensor. The sensor is electrically connected to the liquid level control circuit.

[0009] Furthermore, a guide wheel I is rotatably provided at the top of the bracket, and the steel rope passes around the guide wheel I and is connected to the float; a guide wheel II is rotatably provided at the top of the balance frame, and the steel rope passes around the guide wheel II and is connected to the balance hammer.

[0010] Furthermore, the bracket is a rigid straight tube or a rigid square tube, a through hole corresponding to the inner hole of the bracket is opened on the base, the guide wheel I is fixedly arranged on the top of the bracket close to the side of the balance frame, and the steel rope bypasses the guide wheel I and passes through the inner hole of the bracket and the through hole of the base to be connected with the float.

[0011] Furthermore, the balance frame is composed of two parallel channel steels or angle steels with openings arranged opposite to each other, the bottom ends and top ends of the two parallel channel steels or angle steels are respectively transversely fixedly connected with connecting plates, each of the sensors is fixedly set on one side of the channel steel or angle steel, and the balance hammer is movably set in the balance frame.

[0012] Furthermore, the guide wheel II is rotatably arranged on the connecting plate at the top end of the balancing frame, and the steel rope passes around the guide wheel II and is connected to the balancing hammer.

[0013] Furthermore, a liquid level pointer is fixedly arranged in the middle of the vertical height of the balance hammer, and the indication arrow of the liquid level pointer extends outwardly perpendicular to the vertical direction of the balance frame. The balance frame is provided with liquid level height values ​​spaced along the vertical direction between the sensors or on the opposite side of the sensors.

[0014] Furthermore, at least one side of the balance frame is provided with a guide groove extending from top to bottom, and a guide rod which can slide and extend into the guide groove is fixedly provided on the side wall of the balance hammer, and the guide rod is parallel to the liquid level pointer.

[0015] Furthermore, the liquid level height values ​​gradually increase from top to bottom along the balance frame.

[0016] Furthermore, the sensor disposed on the upper portion of the balance frame is electrically connected to the liquid level control circuit and controls the corresponding liquid discharge pump to be turned off, and the sensor disposed on the lower portion of the balance frame is electrically connected to the liquid level control circuit and controls the corresponding liquid discharge pump to be started.

[0017] Beneficial effects of the utility model:

[0018] 1. The utility model arranges a bracket and a balance frame on the inner side and the outer side of the return water tank respectively, and sets up steel ropes on the bracket and the balance frame, uses the steel ropes to connect the float ball on the inner side of the return water tank with the balance hammer on the outer side, and arranges a plurality of sensors on the balance frame to couple with the balance hammer, so that the float ball moves between the sensors as the liquid level rises and falls, thereby realizing automatic start and stop of multiple drainage pumps in the return water tank, which can not only effectively prevent the overflow of the return water tank, but also avoid the overflow problem caused by the failure of the drainage pump and the drainage volume being less than the water intake volume through the control of multiple drainage pumps, so that the liquid level control operation of the return water tank is stable and reliable.

[0019] 2. In the utility model, only a float and a steel rope are arranged in contact with the wastewater in the return water pool, and only a supporting structure of the steel rope is arranged above the return water pool. The sensor which is crucial to the control and is not corrosion-resistant is arranged on the balance frame outside the return water pool. Therefore, it can significantly reduce the adverse effects of the wastewater in the return water pool and effectively improve the service life of the control device.

[0020] In summary, the utility model has the characteristics of simple structure, automatic control, stable and reliable operation and long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 for Figure 1 A magnified image of point A;

[0023] Figure 3 This is a schematic diagram of the balancing frame and its connection structure of the utility model;

[0024] Figure 4 for Figure 3 Enlarged view of point C;

[0025] Figure 5 for Figure 3 BB-direction cross-sectional enlarged view;

[0026] Figure 6 This is the principle diagram of the liquid level control circuit of the utility model;

[0027] In the figure: 1-return pool, 2-float, 3-steel rope, 4-base, 5-bracket, 6-balance frame, 601-channel steel, 602-connecting plate, 7-sensor, 8-balance hammer, 9-guide wheel I, 10-guide wheel II, 11-liquid level pointer, 12-liquid level height value, 13-mounting plate. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited in any way. Any changes or improvements made based on the teachings of the present invention belong to the protection scope of the present invention.

[0029] like Figures 1 to 6 As shown, the utility model comprises a water return pool 1 and a floating ball 2, wherein the floating ball 2 floats in the water return pool 1;

[0030] It also includes a steel rope 3, a base 4, a bracket 5, a balance frame 6, a sensor 7, and a balance hammer 8. The base 4 is fixedly arranged at the top of the return water tank 1 and extends to the inner side of the return water tank 1. The bracket 5 is vertically fixed on the base 4 above the return water tank 1. The steel rope 3 is movably mounted on the bracket 5 and one end is connected to the float 2.

[0031] The balance frame 6 is vertically arranged on the outside of the return water tank 1, and at least two sensors 7 are respectively arranged on the upper and lower parts of the balance frame 6. The other end of the steel rope 3 away from the float 2 is movably mounted on the balance frame 6 and connected to the balance hammer 8. The weight of the balance hammer 8 is less than the weight of the float 2. The balance hammer 8 moves up and down along the balance frame 6 under the traction of the steel rope 3 and is coupled with each sensor 7. The sensor 7 is electrically connected to the liquid level control circuit.

[0032] A guide wheel Ⅰ9 is rotatably provided at the top end of the bracket 5, and the steel rope 3 passes around the guide wheel Ⅰ9 and is connected to the float 2; a guide wheel Ⅱ10 is rotatably provided at the top end of the balance frame 6, and the steel rope 3 passes around the guide wheel Ⅱ10 and is connected to the balance hammer 8.

[0033] The bracket 5 is a rigid straight tube or a rigid square tube, and a through hole corresponding to the inner hole of the bracket 5 is opened on the base 4. The guide wheel Ⅰ9 is fixedly arranged on the top of the bracket 5 close to the side of the balance frame 6, and the steel rope 3 bypasses the guide wheel Ⅰ9 and passes through the inner hole of the bracket 5 and the through hole of the base 4 to connect with the float 2.

[0034] The balancing frame 6 is composed of two parallel channel steels 601 or angle steels with their openings facing each other. The bottom ends and top ends of the two parallel channel steels 601 or angle steels are respectively transversely fixedly connected with connecting plates 602. Each sensor 7 is fixedly set on one side of the channel steel 601 or angle steel, and the balancing hammer 8 is movably set in the balancing frame 6.

[0035] The guide wheel II 10 is rotatably arranged on the connecting plate 602 at the top of the balancing frame 6 , and the steel rope 3 passes around the guide wheel II 10 and is connected to the balancing hammer 8 .

[0036] A liquid level pointer 11 is fixedly provided in the middle of the vertical height of the balance hammer 8. The indication arrow of the liquid level pointer 11 extending outward is perpendicular to the vertical direction of the balance frame 6. The balance frame 6 is provided with liquid level height values ​​12 at intervals along the vertical direction between the sensors 7 or on the opposite side of the sensors 7.

[0037] At least one side of the balance frame 6 is provided with a guide groove extending from top to bottom. A guide rod slidably extending into the guide groove is fixedly provided on the side wall of the balance hammer 8 . The guide rod is parallel to the liquid level pointer 11 .

[0038] The liquid level height value 12 gradually increases from top to bottom along the balance frame 6 .

[0039] The sensor 7 disposed on the upper portion of the balance frame 6 is electrically connected to the liquid level control circuit and controls the corresponding liquid discharge pump to be turned off, and the sensor 7 disposed on the lower portion of the balance frame 6 is electrically connected to the liquid level control circuit and controls the corresponding liquid discharge pump to be started.

[0040] The sensor 7 is a photoelectric switch or a Hall switch.

[0041] The production and working process of this utility model:

[0042] like Figures 1 to 6 As shown, the production process is as follows:

[0043] 1. If Figure 1 and 2 As shown, a base 4 is welded or bolted on one side of the top of the return pool 1 and extends horizontally into the pool, and a through hole is opened on the base 4. Then, a steel pipe with a diameter of 100 mm is used as a bracket 5, and then a guide wheel Ⅰ9 is installed at the top of the bracket 5 near the pool wall. Then, the steel pipe serving as the bracket 5 is aligned with the through hole and vertically fixed to the base 4 by welding or bolting.

[0044] 2. If Figure 3 As shown, two 40mm parallel angle steels with openings facing each other are welded or bolted on the outside of the return water tank 1 to form a balance frame 6, and a 5mm wide guide groove is opened from top to bottom on the outer surface of the two angle steels of the balance frame 6, and then a guide wheel Ⅱ10 is installed on the top of the balance frame 6, and then a balance hammer 8 that can move up and down is set in the balance frame 6, and then the two ends of the steel rope 3 that bypasses the guide wheel Ⅰ9 and the guide wheel Ⅱ10 are respectively connected to the balance hammer 8 and the floating ball 2 in the return water tank 1, and a guide rod with a diameter of 4mm is welded on both sides of the balance hammer 8, so that the guide rod passes through the guide groove and can move up and down smoothly. If the balance frame 6 is set outdoors, the balance frame 6 needs to be equipped with a rain cap.

[0045] 3. If Figure 3 , 4As shown in FIG. 5 , three photoelectric switch mounting plates 13 are respectively welded at a position 50 mm outward on the upper and lower front sides of the balance frame 6, a 20 mm hole is opened on the mounting plate 13 to mount the photoelectric switch E3F-DS30C4 (i.e., sensor 7), and then the photoelectric switch E3F-DS30C4 is electrically connected to the liquid level control circuit using a wire, and then the water pump (not shown in the figure) in the return water tank 1 is connected to the liquid level control circuit (i.e., Figure 6 As shown), the water pump is automatically started and stopped. Then, a liquid level value 12 corresponding to the liquid level in the return tank 1 is marked on the side of the balance frame 6 opposite to the photoelectric switch E3F-DS30C4, and a liquid level pointer 11 extending from the balance frame 6 is fixed horizontally in the middle of the balance hammer 8. The control device is completed.

[0046] like Figures 1 to 6 As shown, when working, when the liquid level in the return water tank 1 rises, the float 2 floats up and moves the balance hammer 8 downward through the steel rope 3 to touch the KA1 photoelectric switch to close it, and the liquid level control circuit starts the first water pump (not shown in the figure, the same below); if the liquid level continues to rise, the float 2 continues to float up to move the balance hammer 8 downward and touch the KA2 photoelectric switch to close it, and the liquid level control circuit starts the second water pump until the third water pump starts. When the liquid level in the return water tank 1 drops, the float 2 drops and the balance hammer 8 moves upward to touch the KA4 photoelectric switch to disconnect it, and the liquid level control circuit stops the operation of the first water pump; if the liquid level continues to drop, the float 2 continues to drop and the balance hammer 8 moves upward to touch the KA5 photoelectric switch to disconnect it, and the liquid level control circuit stops the operation of the second water pump. When the water level drops to the lowest level, the balance hammer 8 moves upward to touch the KA6 photoelectric switch to disconnect it, and the liquid level control circuit stops the operation of the third water pump, completing the automatic control of the liquid level of the return water tank 1. When any water pump in the return water tank 1 fails, turn the maintenance switch of the liquid level control circuit to the manual position. This will not affect the automatic start and stop of other water pumps, ensure that the liquid level of the return water tank 1 is controllable, and facilitate the elimination of water pump failures.

[0047] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A sectional control device for a liquid level of a mineral processing recycle pool, comprising a recycle pool (1) and a floating ball (2), wherein the floating ball (2) floats in the recycle pool (1); It is characterized in that It also includes a steel rope (3), a base (4), a bracket (5), a balance frame (6), a sensor (7), and a balance hammer (8), wherein the base (4) is fixedly arranged at the top of the return water pool (1) and extends toward the inner side of the return water pool (1), the bracket (5) is vertically fixed on the base (4) above the return water pool (1), and the steel rope (3) is movably mounted on the bracket (5) and one end of the steel rope is connected to the float (2); The balance frame (6) is vertically arranged on the outside of the return water tank (1), and at least two sensors (7) are respectively arranged on the upper and lower parts of the balance frame (6). The other end of the steel rope (3) away from the float (2) is movably mounted on the balance frame (6) and connected to a balance hammer (8). The weight of the balance hammer (8) is less than the weight of the float (2). The balance hammer (8) moves up and down along the balance frame (6) under the traction of the steel rope (3) and is coupled with each sensor (7). The sensor (7) is electrically connected to the liquid level control circuit.

2. The sectional control device for the liquid level of the mineral processing return water tank according to claim 1 is characterized in that: A guide wheel I (9) is rotatably provided at the top end of the bracket (5), and the steel rope (3) passes around the guide wheel I (9) and is connected to the floating ball (2); a guide wheel II (10) is rotatably provided at the top end of the balancing frame (6), and the steel rope (3) passes around the guide wheel II (10) and is connected to the balancing weight (8).

3. The sectional control device for the liquid level of the mineral processing return water tank according to claim 2 is characterized in that: The support (5) is a rigid straight tube or a rigid square tube. The base (4) is provided with a through hole corresponding to the inner hole of the support (5). The guide wheel I (9) is fixedly arranged on the top of the support (5) near the balance frame (6). The steel rope (3) bypasses the guide wheel I (9) and passes through the inner hole of the support (5) and the through hole of the base (4) to be connected with the float (2).

4. The sectional control device for the liquid level of the mineral processing return water tank according to claim 2 is characterized in that: The balancing frame (6) is composed of two mutually parallel channel steels (601) or angle steels with their openings facing each other. The bottom ends and top ends of the two mutually parallel channel steels (601) or angle steels are respectively transversely fixedly connected with connecting plates (602). Each of the sensors (7) is fixedly arranged on one side of the channel steel (601) or angle steel. The balancing hammer (8) is movably arranged in the balancing frame (6).

5. The sectional control device for the liquid level of the mineral processing return water tank according to claim 4 is characterized in that: The guide wheel II (10) is rotatably mounted on a connecting plate (602) at the top end of the balancing frame (6), and the steel rope (3) passes around the guide wheel II (10) and is connected to the balancing weight (8).

6. The sectional control device for the liquid level of the mineral processing return water tank according to claim 4 is characterized in that: A liquid level pointer (11) is fixedly arranged in the middle of the vertical height of the balance hammer (8); an outwardly extending indicating arrow of the liquid level pointer (11) is perpendicular to the vertical direction of the balance frame (6); and liquid level height values ​​(12) are arranged at intervals along the vertical direction on the balance frame (6) between the sensors (7) or on the opposite side of the sensors (7).

7. The sectional control device for the liquid level of the mineral processing return water tank according to claim 6 is characterized in that: At least one side of the balancing frame (6) is provided with a guide groove extending from top to bottom, and a guide rod which can slide and extend into the guide groove is fixedly provided on the side wall of the balancing hammer (8), and the guide rod is parallel to the liquid level pointer (11).

8. The sectional control device for the liquid level of the mineral processing return water tank according to claim 6 is characterized in that: The liquid level height values ​​(12) gradually increase from top to bottom along the balance frame (6).

9. The sectional level control device for the mineral processing return water tank according to any one of claims 1 to 8, characterized in that: The sensor (7) arranged on the upper part of the balance frame (6) is electrically connected to the liquid level control circuit and controls the corresponding liquid discharge pump to be turned off, and the sensor (7) arranged on the lower part of the balance frame (6) is electrically connected to the liquid level control circuit and controls the corresponding liquid discharge pump to be started.

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