Energy-saving filter

Abstract

The utility model provides an energy-saving filter, which relates to the technical field of filtration, and comprises a tank body, a filter screen, a filter screen and a filter screen, the filter cloth disc is rotationally connected to the top of the tank body, and part of the filter cloth disc is arranged in the tank body; the input end of the gas-water separation device is connected with the output ends of the plurality of filter cloth discs; the input end of the oil-free vacuum pump is connected with the output end of the gas-water separation device, and the outer surface of the filter cloth disc can form a filter cake when the oil-free vacuum pump sucks; the input end of the gas-water separation device of the filter is connected with the output ends of the filter cloth discs, the input end of the oil-free vacuum pump is connected with the output end of the gas-water separation device, the gas-water separation device can prevent adsorbed water from entering the oil-free vacuum pump, and corrosion, blockage or damage of the oil-free vacuum pump caused by liquid accumulation are avoided; compared with an oil vacuum pump, the oil-free vacuum pump is energy-saving and power-saving, and the energy consumption of the whole filter is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of filtration technology, and more specifically, relates to an energy-saving filter. Background Technology

[0002] Filter presses are commonly used in mining, chemical, and environmental protection fields to achieve solid-liquid separation and material dewatering. Currently, existing filters mainly consist of a vacuum pump, a filter cloth disc, and multiple fan-shaped filter chambers on the disc. The surface of the filter cloth disc is covered with filter cloth. The main working principle is that the filter cloth disc is immersed in the slurry tank, and the filter cloth comes into contact with the slurry. Under the action of the vacuum pump, the liquid in the slurry is drawn into the filter chamber, while solid particles are trapped on the outer surface of the filter cloth, forming a filter cake. The filter cake can be scraped off by a scraper or other device to achieve unloading. Although existing filters achieve solid-liquid separation, the vacuum pumps used in these filters are oil-lubricated filter pumps. Oil-lubricated filter pumps require oil circulation for lubrication and cooling, which leads to high energy consumption and significant energy waste. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing an energy-saving filter, thereby solving the problem mentioned in the background art that the vacuum pump of the existing filter uses an oil-filled filter pump, which requires oil circulation for lubrication and cooling, resulting in high energy consumption and serious waste of electricity.

[0004] To achieve the above objectives, this utility model provides an energy-saving filter, which includes:

[0005] The tank body, the interior of which is used to hold the slurry;

[0006] A filter cloth disc, wherein the filter cloth disc is rotatably connected to the top of the tank, and a portion of the filter cloth disc is disposed inside the tank.

[0007] A gas-water separation device, wherein the input end of the gas-water separation device is connected to the output end of the plurality of filter cloth discs;

[0008] An oil-free vacuum pump is provided, the input end of which is connected to the output end of the gas-water separation device. The outer surface of the filter cloth disc can form a filter cake when the oil-free vacuum pump draws air.

[0009] Preferably, the filter further includes:

[0010] Multiple partitions are arranged sequentially and at intervals inside the tank, dividing the tank into multiple slurry chambers and multiple collection chambers. A slurry chamber is arranged between two adjacent collection chambers. The number of filter cloth discs is multiple, and the multiple filter cloth discs rotate in the multiple slurry chambers respectively.

[0011] A rotary drive device is disposed at one end of the tank, and the output end of the rotary drive device is connected to the filter cloth disc;

[0012] Multiple scrapers are provided on both sides of the top of each slurry chamber, and the scrapers are slidably connected to the outer surface of the filter cloth disc.

[0013] Preferably, the gas-liquid separation device includes a forced exhaust tank, the input end of which is connected to the output end of the filter cloth disc, and the output end of which is connected to the input end of the oil-free vacuum pump.

[0014] Preferably, the gas-water separation device further includes a gas-water separator, the input end of which is connected to the output end of the forced exhaust tank, and the output end of the water separator is connected to the input end of the oil-free vacuum pump.

[0015] Preferably, the filter further includes a silencer, and the output end of the oil-free vacuum pump is connected to the input end of the silencer.

[0016] Preferably, the filter cloth disc comprises:

[0017] The disc body has multiple openings arranged in a circular pattern on it.

[0018] Multiple filter cloths, each with filter cloth covering both sides of the opening, the opening and two filter cloths forming a filter chamber.

[0019] Preferably, the filter further includes:

[0020] The first main pipe passes through the middle of the filter cloth disc, and one end of the first main pipe is rotatably connected to the input end of the gas-water separation device. Each filter chamber is connected to the first main pipe through a first branch pipe, and a first solenoid valve is provided on the first branch pipe.

[0021] The second main pipe is located inside the first main pipe and is rotatably connected to the output end of the oil-free vacuum pump. Each filter chamber is connected to the second main pipe through a second branch pipe. A second solenoid valve is provided on the second branch pipe. A safety valve is connected to the output end of the oil-free vacuum pump.

[0022] Preferably, the filter further includes:

[0023] Multiple first infrared switches and multiple second infrared switches are provided. The multiple first infrared switches are respectively disposed on multiple first branch pipes. The first infrared switch on each first branch pipe is electrically connected to the first solenoid valve. The multiple second infrared switches are respectively disposed on multiple second branch pipes. The second infrared switch on each second branch pipe is electrically connected to the second solenoid valve.

[0024] Multiple light-shielding plates are provided. The top of the trough is provided on one side of each filter cloth disc. When the first infrared switch and the second infrared switch are turned to the position of the light-shielding plate, the first solenoid valve will be in the closed state and the second solenoid valve will be in the open state.

[0025] Preferably, the filter further includes a support base, and the tank is disposed on the support base.

[0026] Preferably, the filter further includes two check valves, one of which is provided between the output end of the forced exhaust tank and the input end of the gas-water separator, and the other of which is provided between the output end of the gas-water separator and the input end of the oil-free vacuum pump.

[0027] This utility model provides an energy-saving filter, the advantages of which are as follows: the filter cloth discs of the filter are rotatably connected to the top of the tank, and part of the filter cloth discs are set inside the tank. When the oil-free vacuum pump draws a vacuum and drives the filter cloth discs to rotate, the part of the filter cloth discs located inside the tank can form a filter cake when the oil-free vacuum pump draws suction. When the filter cake rotates to the top of the tank with the filter cloth discs, the filter cake can be removed, which is very convenient. The input end of the gas-water separation device of the filter is connected to the output end of multiple filter cloth discs, and the input end of the oil-free vacuum pump is connected to the output end of the gas-water separation device. The gas-water separation device can prevent adsorbed water from entering the oil-free vacuum pump, avoiding corrosion, blockage or damage to the oil-free vacuum pump caused by liquid accumulation. The filter uses an oil-free vacuum pump, which is more energy-efficient and power-saving than an oil-containing vacuum pump, reducing the overall energy consumption of the filter.

[0028] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0029] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0030] Figure 1 A schematic diagram of an energy-saving filter according to an embodiment of the present invention is shown;

[0031] Figure 2 A schematic diagram of the internal structure of the tank of an energy-saving filter according to an embodiment of the present invention is shown.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Tank body; 2. Filter cloth disc; 3. Oil-free vacuum pump; 4. Baffle plate; 5. Scraper; 6. Forced exhaust tank; 7. Gas-water separator; 8. Silencer; 9. First main pipe; 10. First branch pipe; 11. First solenoid valve; 12. Second main pipe; 13. Second branch pipe; 14. Second solenoid valve; 15. Safety valve; 16. Light shield; 17. Check valve. Detailed Implementation

[0034] Preferred embodiments of the present invention will now be described in more detail. While preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0035] like Figure 1 and Figure 2 As shown, this utility model provides an energy-saving filter, which includes:

[0036] Tank 1, the interior of which is used to hold the slurry;

[0037] Filter cloth disc 2 is rotatably connected to the top of tank 1, and part of filter cloth disc 1 is set inside tank 1;

[0038] The gas-water separation device has its input end connected to the output end of multiple filter cloth discs 2;

[0039] The oil-free vacuum pump 3 has its input end connected to the output end of the gas-water separator. The outer surface of the filter cloth disc 2 can form a filter cake when the oil-free vacuum pump 3 is pumping.

[0040] Specifically, to address the problem that existing filter presses use oil-lubricated vacuum pumps, which require oil circulation for lubrication and cooling, resulting in high energy consumption and significant energy waste, this invention provides an energy-saving filter press. In this filter press, the filter cloth disc 2 is rotatably connected to the top of the tank 1, with a portion of the disc 2 located inside the tank 1. When the oil-free vacuum pump 3 creates a vacuum and drives the filter cloth disc 2 to rotate, the portion of the disc 2 located inside the tank 1 can be drawn by the oil-free vacuum pump 3. A filter cake is formed. When the filter cake rotates with the filter cloth disc 2 to the top of the tank body 1, it can be removed, which is very convenient. The input end of the gas-water separation device of the filter is connected to the output end of multiple filter cloth discs 2, and the input end of the oil-free vacuum pump 3 is connected to the output end of the gas-water separation device. The gas-water separation device can prevent adsorbed water from entering the oil-free vacuum pump 3, and avoid corrosion, blockage or damage to the oil-free vacuum pump 3 due to liquid accumulation. The filter uses an oil-free vacuum pump 3, which is more energy-efficient and power-saving than an oil-containing vacuum pump, reducing the energy consumption of the entire filter.

[0041] Preferably, the filter further includes:

[0042] Multiple partitions 4 are arranged sequentially and spaced inside the tank 1. The multiple partitions 4 divide the tank into multiple slurry chambers and multiple collection chambers. A slurry chamber is set between two adjacent collection chambers. There are multiple filter cloth discs 2, and the multiple filter cloth discs 2 rotate in the multiple slurry chambers respectively.

[0043] A rotary drive device is located at one end of the tank 1, and the output end of the rotary drive device is connected to the filter cloth disc 2.

[0044] Multiple scrapers 5 are provided on both sides of the top of each slurry chamber, and the scrapers 5 are slidably connected to the outer surface of the filter cloth disc 2.

[0045] Specifically, multiple filter cloth discs 2 are arranged in parallel. The rotation drive device includes a motor and a transmission mechanism. The motor drives the multiple filter cloth discs 2 to rotate through the transmission mechanism. When the filter cloth discs 2 rotate, the scraper 5 can scrape the filter cake on the filter cloth discs 2 into the collection chamber for easy collection.

[0046] Preferably, the gas-liquid separation device includes a forced exhaust tank 6, the input end of which is connected to the output end of the filter cloth disc 2, and the output end of the forced exhaust tank 6 is connected to the input end of the oil-free vacuum pump 3.

[0047] Specifically, when the filter cloth disc 2 is being evacuated, the forced discharge tank 6 can discharge the liquid, preventing the oil-free vacuum pump 3 from being corroded, blocked, or damaged due to liquid accumulation.

[0048] Preferably, the gas-water separation device further includes a gas-water separator 7, the input end of which is connected to the output end of the forced exhaust tank 6, and the output end of the water separator 7 is connected to the input end of the oil-free vacuum pump 3.

[0049] Specifically, during the internal suction of the filter cloth disc 2, the gas-liquid separator 7 can further separate the liquid in the gas, avoiding corrosion, blockage or damage to the oil-free vacuum pump 3 caused by liquid accumulation.

[0050] Preferably, the filter also includes a silencer 8, and the output end of the oil-free vacuum pump 3 is connected to the input end of the silencer 8.

[0051] Specifically, this is to avoid the filter generating excessive noise.

[0052] Preferably, the filter cloth disc includes:

[0053] The disc body has multiple openings arranged in a circular pattern on it.

[0054] Multiple filter cloths are used, with filter cloths covering both sides of each opening, and the opening and two filter cloths form a filtration chamber.

[0055] Specifically, when the oil-free vacuum pump 3 draws a vacuum, a filter cake can be formed on the outer surface of the filter cloth, thus achieving full filtration of the slurry.

[0056] Preferably, the filter further includes:

[0057] The first main pipe 9 passes through the middle of the filter cloth disc 2. One end of the first main pipe 9 is rotatably connected to the input end of the gas-water separator. Each filter chamber is connected to the first main pipe 9 through a first branch pipe 10. A first solenoid valve 11 is provided on the first branch pipe 10.

[0058] The second main pipe 12 is located inside the first main pipe 9. The second main pipe 12 is rotatably connected to the output end of the oil-free vacuum pump 3. Each filter chamber is connected to the second main pipe 12 through a second branch pipe 13. A second solenoid valve 14 is provided on the second branch pipe 13. A safety valve 15 is connected to the output end of the oil-free vacuum pump 3.

[0059] Specifically, the first main pipe 9 is used for air extraction, and the second main pipe 12 is used for air blowing. When the filter cake rotates with the filter cloth disc 2 to the top of the tank 1, the first solenoid valve 11 connected to the filter chamber near the scraper 5 can be closed, and the second solenoid valve 14 connected to the filter chamber near the scraper 5 can be opened. At this time, the second main pipe 12 will blow air into the filter chamber, causing the filter chamber to bulge. With the help of the scraper 5, the filter cake can be completely removed from the filter cloth, improving the unloading effect.

[0060] When the output volume of the oil-free vacuum pump 3 is large, it can be discharged through the safety valve 15.

[0061] This filter uses the air volume blown out by the oil-free vacuum pump 3 to inflate the filter chamber, avoiding the need for an additional fan and saving energy.

[0062] Preferably, the filter further includes:

[0063] Multiple first infrared switches and multiple second infrared switches are provided. The multiple first infrared switches are respectively disposed on multiple first branch pipes 10. The first infrared switch on each first branch pipe 10 is electrically connected to the first solenoid valve 11. The multiple second infrared switches are respectively disposed on multiple second branch pipes 13. The second infrared switch on each second branch pipe 13 is electrically connected to the second solenoid valve 14.

[0064] Multiple light-shielding plates 16 are provided on the top of the tank 1 on one side of each filter cloth disc 2. When the first infrared switch and the second infrared switch are turned to the position of the light-shielding plate 16, the first solenoid valve 11 will be in the closed state and the second solenoid valve 14 will be in the open state.

[0065] Specifically, when the filter cloth disc 2 rotates, the first infrared switch and the second infrared switch located in the filter chamber near the scraper 5 above will be simultaneously blocked by the light shield 16. At this time, the first infrared switch will control the first solenoid valve 11 to be in the closed state, and the second infrared switch will control the second solenoid valve 14 to be in the open state. The second main pipe 12 will blow air into the filter chamber, causing the filter chamber to bulge. With the help of the scraper 5, the filter cake can be completely removed from the filter cloth, improving the unloading effect. Through the cooperation of the first infrared switch, the second infrared switch and the light shield 16, the automatic control of the first solenoid valve 11 and the second solenoid valve 14 is realized, improving the filtration efficiency.

[0066] Preferably, the filter also includes a support base, and the tank 1 is disposed on the support base.

[0067] Preferably, the filter also includes two check valves 17. One check valve 17 is provided between the output end of the forced exhaust tank 6 and the input end of the gas-water separator 7, and the other check valve 17 is provided between the output end of the gas-water separator 7 and the input end of the oil-free vacuum pump 3.

[0068] In summary, when the energy-saving filter of this utility model is implemented, the filter cloth disc 2 is rotatably connected to the top of the tank 1, and part of the filter cloth disc 2 is located inside the tank 1. When the oil-free vacuum pump 3 draws a vacuum and drives the filter cloth disc 2 to rotate, the part of the filter cloth disc 2 located inside the tank 1 can form a filter cake when the oil-free vacuum pump 3 draws suction. When the filter cake rotates with the filter cloth disc 2 to the top of the tank 1, it can be removed by scraping with the scraper 5 and by bulging the filter cloth disc 2, which saves energy and is very convenient. The input end of the gas-water separation device of this filter is connected to the output end of multiple filter cloth discs 2, and the input end of the oil-free vacuum pump 3 is connected to the output end of the gas-water separation device. The gas-water separation device can prevent the adsorbed water from entering the oil-free vacuum pump 3, and avoid corrosion, blockage or damage to the oil-free vacuum pump 3 due to liquid accumulation. This filter uses an oil-free vacuum pump 3, which is more energy-efficient and saves electricity compared to an oil-containing vacuum pump, reducing the energy consumption of the entire filter.

[0069] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. An energy saving filter machine characterized by, The filter machine comprises: a tank body, an inside of the tank body being used for arranging slurry; a filter cloth disc, the filter cloth disc being rotationally connected at a top of the tank body, and part of the filter cloth disc being arranged in the inside of the tank body; a gas-water separation device, an input end of the gas-water separation device being connected with output ends of a plurality of the filter cloth discs; an oil-free vacuum pump, an input end of the oil-free vacuum pump being connected with an output end of the gas-water separation device, and an outer surface of the filter cloth disc being capable of forming a filter cake when the oil-free vacuum pump is pumping.

2. The energy saving filter machine according to claim 1, characterized in that, The filter machine further comprises: a plurality of partitions, the plurality of partitions being sequentially and spacedly arranged in the inside of the tank body, the plurality of partitions being divided into a plurality of slurry chambers and a plurality of collection chambers, one slurry chamber being arranged between two adjacent collection chambers, the number of the filter cloth discs being a plurality, and the plurality of filter cloth discs being respectively rotated in the plurality of slurry chambers; a rotary driving device, the rotary driving device being arranged at one end of the tank body, and an output end of the rotary driving device being connected with the filter cloth disc; a plurality of scrapers, each slurry chamber being provided with a scraper at both sides of a top of the slurry chamber, and the scraper being slidingly connected with the outer surface of the filter cloth disc.

3. The energy saving filter machine according to claim 1, wherein, The gas-water separation device comprises a forced discharge tank, the input end of the forced discharge tank being connected with the output end of the filter cloth disc, and the output end of the forced discharge tank being connected with the input end of the oil-free vacuum pump.

4. The energy saving filter according to claim 3, wherein The gas-water separation device further comprises a gas-water separator, the input end of the gas-water separator being connected with the output end of the forced discharge tank, and the output end of the gas-water separator being connected with the input end of the oil-free vacuum pump.

5. The energy saving filter machine of claim 1, wherein, The filter machine further comprises a silencer, the output end of the oil-free vacuum pump being connected with the input end of the silencer.

6. The energy saving filter machine of claim 1, wherein, The filter cloth disc comprises: a disc body, a plurality of openings being circumferentially arranged on the disc body; a plurality of filter cloths, each opening being covered with a filter cloth at both sides of the opening, and a filter chamber being formed between the opening and the two filter cloths.

7. An energy saving filter according to claim 6, wherein The filter machine further comprises: a first main pipe, the first main pipe penetrating a middle portion of the filter cloth disc, one end of the first main pipe being rotationally connected with the input end of the gas-water separation device, and each filter chamber being communicated with the first main pipe through a first branch pipe, and a first electromagnetic valve being arranged on the first branch pipe; a second main pipe, the second main pipe being arranged in the first main pipe, the second main pipe being rotationally connected with the output end of the oil-free vacuum pump, and each filter chamber being communicated with the second main pipe through a second branch pipe, a second electromagnetic valve being arranged on the second branch pipe, and a safety valve being connected with the output end of the oil-free vacuum pump.

8. The energy saving filter according to claim 7, wherein The filter machine further comprises: a plurality of first infrared switches and a plurality of second infrared switches, the plurality of first infrared switches being respectively arranged on the plurality of first branch pipes, the first infrared switch and the first electromagnetic valve on each first branch pipe being electrically connected, the plurality of second infrared switches being respectively arranged on the plurality of second branch pipes, and the second infrared switch and the second electromagnetic valve on each second branch pipe being electrically connected. A plurality of light shielding plates, one of which is arranged on one side of each of the filter cloth plates, the first electromagnetic valve is in the closed state and the second electromagnetic valve is in the open state when the first infrared switch and the second infrared switch are turned to the positions of the light shielding plates.

9. The energy saving filter according to claim 1, wherein, The filter machine further comprises a support seat, and the groove body is arranged on the support seat.

10. The energy saving filter machine of claim 4, wherein, The filter machine further comprises two one-way valves, one of which is arranged between the output end of the forced discharge tank and the input end of the gas-water separator, and the other is arranged between the output end of the gas-water separator and the input end of the oil-free vacuum pump.

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