Filter capable of automatically switching based on pressure feedback

Abstract

The invention relates to a filter capable of automatically switching based on pressure feedback. An electromagnetic box, a liquid storage box, a filter box, a sand storage box and an adjusting box are sequentially and fixedly connected from top to bottom end to end; pressure signals detected by the liquid pressure sensor are used for controlling opening and closing of the electromagnet, the water pumping pump, the cleaning motor and the electric gate valve, and when the sand storage box of any filter is filled with sand and stones, the liquid pressure sensor reaches a set pressure threshold value; after receiving the pressure signal, the controller cuts off signal transmission of other liquid pressure sensors, feeds back to other filters after ensuring that a sand storage box of any filter is filled with gravel, and filters mineral water in a first water supply pipe in the gravel discharge process of any filter, so that the mineral water in a second water supply pipe is discharged. Any filter alternately performs the working processes of filtering and gravel discharging, and meanwhile, the two working processes of a plurality of filters are staggered, so that the continuity of the filtering process is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of ore dressing equipment, and in particular relates to a filter capable of automatic switching based on pressure feedback. Background Art

[0002] Ore dressing is the process of crushing and grinding the ore according to the physical and chemical properties of different minerals in the ore, and then separating the useful minerals from the gangue minerals by gravity separation, flotation, magnetic separation, electrostatic separation and other methods, and separating various symbiotic (associated) useful minerals from each other as much as possible, removing or reducing harmful impurities, so as to obtain the raw materials required for smelting or other industries. Ore dressing can enrich the useful components in the minerals, reduce the consumption of fuel and transportation in smelting or other processing processes, and make low-grade ores economically utilized.

[0003] Ore dressing can significantly improve the quality of mineral raw materials, reduce transportation costs, ease the difficulty of further processing, reduce processing costs, and realize the comprehensive utilization of mineral raw materials. In the process of mineral dressing, especially the wet pre-selection process, a large amount of water is consumed. In order to save water, water is usually recycled. However, in the process of recovering water from tailings slurry, a filter is needed to filter the recovered water for easy recycling.

[0004] After long-term use, as the ore sand accumulates, the ore sand in the filter needs to be cleaned regularly to prevent the ore sand from clogging the filter screen. By adding an electric gate valve to the filter's feed pipe, the filter switching can be remotely controlled, and the filter vacuum pump pressure and Roots blower pressure can be monitored in real time. According to the filtering effect of the filter, the flow of the filter water supply pipe is monitored and adjusted to ensure the working efficiency of the filter. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a filter with automatic switching based on pressure feedback to solve the above-mentioned problem.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a filter machine based on automatic switching of pressure feedback includes an electromagnetic box, a liquid storage box, a filter box, a sand storage box, an adjustment box, and a water pump, and the electromagnetic box, the liquid storage box, the filter box, the sand storage box and the adjustment box are fixedly connected in sequence from top to bottom, the electromagnetic box is a cylindrical box structure with an open upper end and a sealed lower end, the upper end port of the electromagnetic box is covered with an upper end cover, a partition is provided in the middle of the liquid storage box, the partition divides the internal cavity of the liquid storage box into an upper cavity and a lower cavity, and a through hole is provided in the middle of the partition to connect the upper cavity with the lower cavity, and the side of the upper cavity is connected with a vertical upward liquid inlet pipe, and the liquid inlet pipe The port away from one end of the upper cavity is connected with the discharge port of the water pump, and the liquid inlet of the water pump is connected with the first water supply pipe. A circular filter screen is arranged in the filter box, and the filter screen divides the filter box into two parts, an inner cavity and an outer cavity, wherein the upper end port of the inner cavity is connected with the lower cavity, and the lower end port of the inner cavity is connected with the sand storage box, and the side of the outer cavity is connected with a vertical downward discharge channel, and the discharge channel is connected with the second water supply pipe; the lower end of the sand storage box is provided with a conical side with a high middle part and a low side edge, and the sand storage box is connected with a vertical downward sand discharge pipe near the lower end, and the lower end port of the regulating box is covered with a lower end cover, and a cleaning motor is fixed on the outside of the lower end cover.

[0007] An electromagnet and a magnet block are arranged in the electromagnetic box, wherein the electromagnet is fixed at the inner middle part of the upper end cover, the magnet block is located directly below the electromagnet, and a first push-pull rod is fixed at the lower side of the magnet block, the lower end of the push-pull rod is inserted into the upper cavity of the liquid storage tank, a push plate, a plug and a reset spring are arranged in the upper cavity, wherein the push plate is fixed at the middle part of the push-pull rod, and the upper middle part of the plug is rotatably connected to the lower end of the push-pull rod.

[0008] A cleaning shaft is provided in the inner cavity of the filter box, the lower end of the cleaning shaft is inserted into the adjusting box, and the cleaning shaft is rotatably connected to the middle part of the lower side of the sand storage box through a bearing, the upper end of the cleaning shaft is inserted into the lower cavity of the liquid storage tank, and four cleaning brushes are evenly distributed around the side of the cleaning shaft, the cleaning brushes are fixedly connected to the cleaning shaft, and the upper and lower edges of the filter screen are located between the cleaning brushes.

[0009] The output shaft of the cleaning motor is inserted into the adjusting box, and a driving turntable is fixed at the end of the output shaft of the cleaning motor, a driving vertical push rod is fixed on the upper side of the driving turntable near the side edge, a transmission shaft is arranged above the driving turntable, the transmission shaft passes through the cleaning shaft, a transmission turntable is fixed at the lower end of the transmission shaft, the radius of the transmission turntable is smaller than the distance from the vertical push rod to the axis of the driving turntable, a horizontal push rod is fixed on the side of the transmission turntable, and the upper end of the transmission shaft is fixedly connected to the plug.

[0010] Preferably, a liquid pressure sensor is installed on the side wall of the upper cavity of the liquid storage tank.

[0011] Preferably, the sand discharge pipe is provided with an electric gate valve for controlling the discharge of sand and gravel.

[0012] Preferably, an electric gate valve is installed on the sand discharge pipe.

[0013] Preferably, the cross section of the transmission shaft is diamond-shaped, so as to ensure that the transmission shaft can slide up and down relative to the cleaning shaft, and the cleaning shaft and the transmission shaft can rotate synchronously by utilizing the cross-sectional shape restriction.

[0014] The beneficial effects of the present invention are as follows: the present invention uses the pressure signal detected by the liquid pressure sensor to control the opening and closing of the electromagnet, the water pump, the cleaning motor, and the electric gate valve. After the sand storage box is full of sand and gravel, the filtering process of the ore in the first water supply pipe is stopped, and the plug drives the transmission shaft to slide downward during the process of blocking the through hole on the partition, adjusts the position of the horizontal push rod, and uses the vertical push rod and the horizontal push rod to cooperate with each other to drive the cleaning shaft to rotate, and the cleaning shaft drives the cleaning brush to rotate, so as to clean the ore sand attached to the filter screen to avoid the filter screen being blocked by sand and gravel; when multiple filters are provided, the filter The liquid pressure sensor on the machine is connected to the controller. When the sand storage box of any filter is full of sand and gravel, and the liquid pressure sensor reaches the set pressure threshold, the controller will cut off the signal transmission of other liquid pressure sensors after receiving the pressure signal, ensuring that after the sand storage box of any filter is full of sand and gravel, feedback is given to other filters. During the process of any filter discharging sand and gravel, the other filters filter the mineral water in the first water supply pipe, so that any filter alternately performs the working process of filtering and discharging sand and gravel. At the same time, the two working processes of multiple filters are staggered to ensure the continuity of the filtration process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The main structure of the filter Figure 1 ;

[0016] Figure 2 It is a side view of the structure of the filter body;

[0017] Figure 3 This is the internal structure diagram of the filter;

[0018] Figure 4 This is a control principle diagram of Embodiment 1;

[0019] Figure 5 The main structure of the filter Figure 2 ;

[0020] Figure 6 This is the control principle diagram of embodiment 2.

[0021] Numbers in the figure: 1 electromagnetic box; 2 liquid storage box; 201 partition; 202 upper cavity; 203 lower cavity; 3 filter box; 301 inner cavity; 302 outer cavity; 4 sand storage box; 5 regulating box; 6 water pump; 7 upper end cover; 8 liquid inlet pipe; 9 first water supply pipe; 10 filter screen; 11 liquid discharge channel; 12 second water supply pipe; 13 sand discharge pipe; 14 lower end cover; 15 cleaning motor; 16 electromagnet; 17 magnet block; 18 first push-pull rod; 19 push plate; 20 plug; 21 return spring; 22 cleaning shaft; 23 cleaning brush; 24 driving turntable; 25 vertical push rod; 26 transmission shaft; 27 transmission turntable; 28 horizontal push rod; 29 liquid pressure sensor. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0023] A filter with automatic switching based on pressure feedback

[0024] Embodiment 1: Figure 1-4 As shown, the pressure feedback automatic switching filter comprises an electromagnetic box 1, a liquid storage box 2, a filter box 3, a sand storage box 4, an adjustment box 5, and a water pump 6, and the electromagnetic box 1, the liquid storage box 2, the filter box 3, the sand storage box 4 and the adjustment box 5 are fixedly connected in sequence from top to bottom, the electromagnetic box 1 is a cylindrical box structure with an open upper end and a sealed lower end, and the upper end port of the electromagnetic box 1 is covered with an upper end cover 7, and a partition 201 is provided in the middle of the liquid storage box 2, and the partition 201 divides the internal cavity of the liquid storage box 2 into an upper cavity 202 and a lower cavity 203, and a through hole is provided in the middle of the partition 201, so that the upper cavity 202 is connected with the lower cavity 203, and the side of the upper cavity 202 is connected with a vertical upward liquid inlet pipe 8, and the liquid inlet pipe 8 is away from the port at one end of the upper cavity 202 It is connected with the discharge port of the water pump 6, and the liquid inlet of the water pump 6 is connected with the first water supply pipe 9. A circular filter screen 10 is arranged in the filter box 3, and the filter screen 10 divides the filter box 3 into two parts, an inner cavity 301 and an outer cavity 302, wherein the upper end port of the inner cavity 301 is connected with the lower cavity 203, and the lower end port of the inner cavity 301 is connected with the sand storage box 4, and the side of the outer cavity 302 is connected with a vertical downward discharge channel 11, and the discharge channel 11 is connected with a second water supply pipe 12; the lower end of the sand storage box 4 is provided with a conical side with a high middle part and a low side edge, and the sand storage box 4 is connected with a vertical downward sand discharge pipe 13 near the lower end, and the lower end port of the regulating box 5 is covered with a lower end cover 14, and a cleaning motor 15 is fixed to the outer side of the lower end cover 14.

[0025] In this embodiment, an electromagnet 16 and a magnet block 17 are provided in the electromagnetic box 1, wherein the electromagnet 16 is fixed to the middle inner side of the upper end cover 7, the magnet block 17 is located directly below the electromagnet 16, and a first push-pull rod 18 is fixed to the lower side of the magnet block 17, and the lower end of the push-pull rod 18 is inserted into the upper cavity 202 of the liquid storage tank 2, and a push plate 19, a plug 20 and a reset spring 21 are provided in the upper cavity 202, wherein the push plate 19 is fixed to the middle part of the push-pull rod 18, and the upper middle part of the plug 20 is rotatably connected to the lower end of the push-pull rod 18.

[0026] In this embodiment, a cleaning shaft 22 is provided in the inner cavity 301 of the filter box 3, the lower end of the cleaning shaft 2 is inserted into the adjusting box 5, and the cleaning shaft 22 is rotatably connected to the middle part of the lower side of the sand storage box 4 through a bearing, and the upper end of the cleaning shaft 22 is inserted into the lower cavity 203 of the liquid storage tank 2, and four cleaning brushes 23 are evenly distributed around the side of the cleaning shaft 22, the cleaning brushes 23 are fixedly connected to the cleaning shaft 22, and the upper and lower edges of the filter screen 10 are located between the cleaning brushes 23.

[0027] In this embodiment, the output shaft of the cleaning motor 15 is inserted into the adjustment box 5, and a driving turntable 24 is fixed to the end of the output shaft of the cleaning motor 15, and a driving vertical push rod 25 is fixed to the upper side of the driving turntable 24 near the side edge. A transmission shaft 26 is arranged above the driving turntable 24, and the transmission shaft 26 passes through the cleaning shaft 23. A transmission turntable 27 is fixed to the lower end of the transmission shaft 26. The radius of the transmission turntable 27 is smaller than the distance from the vertical push rod 25 to the axis of the driving turntable 24. A horizontal push rod 28 is fixed to the side of the transmission turntable 27, and the upper end of the transmission shaft 26 is fixedly connected to the plug 20.

[0028] In this embodiment, a liquid pressure sensor 29 is installed on the side wall of the upper cavity 202 of the liquid storage tank 2.

[0029] In this embodiment, an electric gate valve is provided on the sand discharge pipe 13 to control the discharge of sand and gravel.

[0030] In this embodiment, the cross section of the transmission shaft 26 is a diamond shape, so that the transmission shaft 26 can slide up and down relative to the cleaning shaft 22, and the cleaning shaft 22 and the transmission shaft 26 can rotate synchronously by using the cross-sectional shape.

[0031] The method of automatic switching based on pressure feedback in this embodiment is as follows;

[0032] S1: Based on this embodiment, the liquid pressure sensor 29 is connected to the controller through a signal line, and the controller is respectively connected to the electromagnet 16, the water pump 6, the cleaning motor 15, and the electric gate valve through signal lines. The controller controls the opening and closing of the electromagnet 16, the water pump 6, the cleaning motor 15, and the electric gate valve according to the mine water pressure signal detected by the liquid pressure sensor 29;

[0033] S2: Turn on the water pump 6, and the water pump 6 pumps the mineral water in the first water supply pipe 9 into the upper cavity 202 of the liquid storage tank 2 at rated power;

[0034] S3: After the mineral water in the upper cavity 202 is filtered by the filter screen 10, the mineral sand in the mineral water is blocked in the inner cavity 301, and the mineral sand falls into the sand storage box 4 under the action of gravity, and the filtered mineral water enters the outer cavity 302, and then enters the second water supply pipe 12 for discharge;

[0035] S4: As the ore sand is continuously collected in the sand storage box 4, the height of the ore sand increases and blocks the mesh of the filter screen 10, and the resistance of the ore water passing through the filter screen 10 becomes larger, so that the pressure of the ore water in the lower cavity 203 increases. When the pressure of the ore water reaches the threshold value set by the liquid pressure sensor 29, the controller receives the pressure signal of the liquid pressure sensor 29;

[0036] S5: According to the mineral water pressure signal detected by the liquid pressure sensor 29, the electromagnet 16 is turned on, the water pump 6 is turned off, the cleaning motor 15 is turned on, and the electric gate valve is turned on;

[0037] S6: After the electromagnet 16 is turned on, the magnet block 17 is pushed downward by the magnetic force of mutual repulsion between the electromagnet 16 and the magnet block 17, and the magnet block 17 drives the push plate 19 and the plug 20 to slide downward, the push plate 19 compresses the return spring 21, and the plug 20 blocks the through hole on the partition 201, thereby preventing the mineral water in the first water supply pipe 9 from continuously entering the liquid storage tank 2;

[0038] S7: When the plug 20 slides downward, the transmission shaft 26 is driven to slide downward, and the height of the horizontal push rod 28 is lower than that of the vertical push rod 25. The cleaning motor 15 drives the driving turntable 24 to rotate. When the vertical push rod 25 contacts the horizontal push rod 28, the transmission shaft 26 and the cleaning shaft 22 are driven to rotate through the horizontal push rod 28. The cleaning shaft 22 drives the cleaning brush 23 to rotate, so as to clean the mineral sand attached to the filter screen 10.

[0039] S8: After the electric gate valve is opened, the filtered ore sand is discharged from the sand discharge pipe 13, completing the sand discharge work;

[0040] S9: turn off the electromagnet 16, turn on the water pump 6, turn off the cleaning motor 15, and close the electric gate valve. Under the elastic force of the return spring 21, the plug 20 is separated from the partition 201, and the filtering work continues.

[0041] Embodiment 2: Figure 5-6As shown, the difference from the first embodiment is that multiple filters are provided, and multiple water outlets are provided on the first water supply pipe 9, which are respectively connected to the water inlet of the water pump 6 on the filter, and the water inlet reservoir on the second water supply pipe 12 is respectively connected to the drainage channel 11 on the filter, and the liquid pressure sensors 29 of the multiple filters are connected to the controller through signal lines, and the controller is respectively connected to the electromagnet 16, the water pump 6, the cleaning motor 15, and the electric gate valve through signal lines. The controller controls the opening and closing of the electromagnet 16, the water pump 6, the cleaning motor 15, and the electric gate valve according to the mine water pressure signal detected by the liquid pressure sensor 29;

[0042] The method of automatic switching based on pressure feedback in this embodiment is as follows:

[0043] S1: When the sand storage box 4 of any filter is full of sand and gravel, and the liquid pressure sensor 29 reaches the set pressure threshold, the controller cuts off the signal transmission of the other liquid pressure sensors 29 after receiving the pressure signal. When the sand storage box 4 of any filter is full of sand and gravel, the controller provides feedback to the other filters to ensure that when any filter is discharging sand and gravel, the other filters filter the mineral water in the first water supply pipe 9;

[0044] S2: The electromagnet 16 on the filter where the liquid pressure sensor 29 whose signal transmission is cut off is located is turned off, the water pump 6 is turned on, the cleaning motor 15 is turned off, and the electric gate valve is closed to filter the mineral water;

[0045] S3: When the controller receives the pressure signal from the liquid pressure sensor 29, the controller turns off the corresponding filter pump 6, turns on the cleaning motor 15, and opens the electric gate valve to discharge the sand and gravel in the sand storage box 4;

[0046] S4: After the gravel discharge work is completed in step S3, the electromagnet 16 is turned off, the water pump 6 is turned on, the cleaning motor 15 is turned off, and the electric gate valve is closed. Under the elastic force of the reset spring 21, the plug 20 is separated from the partition 201. After the gravel is discharged, the filter completes the reset and continues the filtering work.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A filter with automatic switching based on pressure feedback, characterized in that: The invention is composed of an electromagnetic box, a liquid storage box, a filter box, a sand storage box and an adjustment box which are fixedly connected in sequence from top to bottom. The electromagnetic box is a cylindrical box structure with an upper end open and a lower end sealed. The upper end port of the electromagnetic box is covered with an upper end cover. A partition is arranged in the middle of the liquid storage box. The partition divides the internal cavity of the liquid storage box into an upper cavity and a lower cavity. A through hole is arranged in the middle of the partition so that the upper cavity is connected with the lower cavity. A vertical upward liquid inlet pipe is connected to the side of the upper cavity. The port of the liquid inlet pipe away from one end of the upper cavity is connected to the discharge port of a water pump. The liquid inlet of the water pump is connected to the A first water supply pipe is connected, and a circular filter screen is arranged in the filter box, which divides the filter box into an inner cavity and an outer cavity. The upper end port of the inner cavity is connected with the lower cavity, and the lower end port of the inner cavity is connected with the sand storage box. The side of the outer cavity is connected with a vertical downward drainage channel, and the drainage channel is connected with the second water supply pipe; the lower end of the sand storage box is provided with a conical side with a high middle part and a low side edge, and the sand storage box is connected with a vertical downward sand discharge pipe near the lower end, and the lower end port of the regulating box is covered with a lower end cover, and a cleaning motor is fixed on the outer side of the lower end cover.

2. A filter according to claim 1 that automatically switches based on pressure feedback, characterized in that: An electromagnet and a magnet block are arranged in the electromagnetic box, wherein the electromagnet is fixed at the inner middle part of the upper end cover, the magnet block is located directly below the electromagnet, and a first push-pull rod is fixed at the lower side of the magnet block, the lower end of the push-pull rod is inserted into the upper cavity of the liquid storage tank, a push plate, a plug and a reset spring are arranged in the upper cavity, wherein the push plate is fixed at the middle part of the push-pull rod, and the upper middle part of the plug is rotatably connected to the lower end of the push-pull rod.

3. A filter according to claim 1 that automatically switches based on pressure feedback, characterized in that: A cleaning shaft is provided in the inner cavity of the filter box, the lower end of the cleaning shaft is inserted into the adjusting box, and the cleaning shaft is rotatably connected to the middle part of the lower side of the sand storage box through a bearing, the upper end of the cleaning shaft is inserted into the lower cavity of the liquid storage tank, and four cleaning brushes are evenly distributed around the side of the cleaning shaft, the cleaning brushes are fixedly connected to the cleaning shaft, and the upper and lower edges of the filter screen are located between the cleaning brushes.

4. The filter according to claim 1, characterized in that: The output shaft of the cleaning motor is inserted into the adjusting box, and a driving turntable is fixed at the end of the output shaft of the cleaning motor, a driving vertical push rod is fixed on the upper side of the driving turntable near the side edge, a transmission shaft with a diamond-shaped cross-section is arranged above the driving turntable, the transmission shaft passes through the cleaning shaft, a transmission turntable is fixed at the lower end of the transmission shaft, the radius of the transmission turntable is smaller than the distance from the vertical push rod to the axis of the driving turntable, a horizontal push rod is fixed on the side of the transmission turntable, and the upper end of the transmission shaft is fixedly connected to the plug.

5. The filter according to claim 1, characterized in that: A liquid pressure sensor is installed on the side wall of the upper cavity of the liquid storage box.

6. The filter according to claim 1, characterized in that: The sand discharge pipe is provided with an electric gate valve for controlling the discharge of sand and gravel.

7. The filter according to claim 1, characterized in that: An electric gate valve is installed on the sand discharge pipe.

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