A filtration system and filtration method

Abstract

The application discloses a filtering system and a filtering method, relates to the technical field of quartz sand filtering, and comprises a desliming assembly, a water washing assembly, an acid washing assembly and a magnetic separation assembly. The desliming assembly comprises an inner bucket, an outer bucket and a stirring piece. The outer wall of the inner bucket and the inner wall of the outer bucket are spaced apart to form a containing cavity. The side wall of the inner bucket is provided with filter holes. The filter holes are communicated with the containing cavity. The outer bucket is provided with a water outlet communicated with the containing cavity. The stirring piece is located in the inner bucket and is used for stirring quartz sand in the inner bucket. The water washing assembly is used for washing the quartz sand after the desliming assembly. The acid washing assembly is used for acid washing the quartz sand after the water washing assembly. The magnetic separation assembly is used for magnetic separation of the quartz sand after the acid washing assembly. In the process of high-speed rotation of the stirring piece, the mud water in the inner bucket is driven to do centrifugal motion, so that the mud water can more fully flow into the containing cavity through the filter holes, and the friction between the quartz sands is more sufficient, and the desliming efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of quartz sand filtration technology, specifically to a filtration system and filtration method. Background Technology

[0002] High-purity quartz sand refers to high-purity non-metallic mineral raw materials with a certain particle size, produced from natural quartz minerals through a series of physical and chemical purification technologies. During the production process, the raw materials need to be washed and filtered to remove the soil and impurities attached to or mixed with the raw materials in order to facilitate subsequent processing.

[0003] The prior art disclosed in CN218945320U is a high-efficiency quartz sand desliming machine, including an overflow frame. A sludge cleaning mechanism is fixedly connected inside the overflow frame, and an overflow utilization mechanism is movably connected below the sludge cleaning mechanism. A desliming hopper is fixedly connected inside the overflow frame, and a fixing frame is fixedly connected to the outer wall of the overflow utilization mechanism. A sand settling pipe is fixedly connected to the bottom end of the desliming hopper. Water is injected into the outlet pipe through a water supply pipe, thereby washing the quartz sand through nozzles and washing away the silt. Simultaneously, the overflowing water falls onto the outer wall of a filter plate. Due to the inclined design of the filter plate, the water flows towards the filter pipe. The silt is blocked by grooves on the outer wall of the filter plate, and a small amount of water containing silt enters the interior of the filter pipe and is filtered by the filter plate. The water then re-enters the interior of the water supply pipe, facilitating the collection and utilization of subsequent overflows and the separation of silt.

[0004] However, the existing technology still has its drawbacks. For example, the desludge bucket needs to rely on continuous water flow to clean the sludge adhering to the quartz sand. This not only wastes too much water resources, but also means that after the sludge and quartz sand are separated, the sludge will still settle and adhere to the quartz sand, making it impossible to quickly process the sludge. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a filtration system and filtration method to solve the technical problem that in the prior art, the sludge de ...

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0007] In a first aspect, the present invention provides a filtration system, comprising:

[0008] The sludge removal assembly includes an inner hopper, an outer hopper, and an agitator. The inner hopper has filter holes on its side wall and a discharge port at its bottom. The outer hopper is rotatably fitted onto the inner hopper and forms a sludge-containing cavity with the outer wall of the inner hopper at a distance. The sludge-containing cavity is connected to the filter holes. The outer hopper has a drain port that is connected to the sludge-containing cavity. The agitator is located inside the inner hopper.

[0009] The washing assembly has its inlet connected to the outlet of the inner hopper and is used to wash the quartz sand.

[0010] A pickling assembly, the inlet of which is connected to the outlet of the washing assembly, is used for pickling quartz sand; and

[0011] The magnetic separation component, whose inlet is connected to the outlet of the pickling component, is used to perform magnetic separation and impurity removal on the quartz sand.

[0012] In some embodiments, the inner hopper includes a first part and a second part connected to each other. The first part is cylindrical and is used to accommodate the stirring element, and the second part is conical and is used to accommodate quartz sand. The filter holes are formed on the sidewall of the second part.

[0013] In some embodiments, the discharge port of the inner hopper is connected to a discharge component, the side wall of the discharge component is sealed to the outer hopper, the discharge component is provided with a discharge channel, and a sealing cover is movably connected to the end of the discharge component away from the inner hopper. When the sealing cover is opened, the quartz sand inside the inner hopper can flow out through the discharge channel.

[0014] In some embodiments, the sealing cap is connected to the discharge member via an elastic element. When the sealing cap moves away from the discharge member to open the discharge channel, the elastic element accumulates elastic force, and the elastic element can also release elastic force to drive the sealing cap to seal the discharge member.

[0015] In some embodiments, the stirring component includes a rotating shaft, a pressure plate, and a plurality of stirring teeth. One side of the pressure plate is connected to the rotating shaft, and the other side of the pressure plate is connected to the plurality of stirring teeth, which are arranged on the same straight line.

[0016] In some embodiments, the washing assembly includes a housing, a washing drum, and a washing motor. The washing drum is rotatably disposed inside the housing, and the washing motor is disposed on the top of the housing and connected to the washing drum to drive the washing drum to rotate. The inner wall of the washing drum has friction protrusions.

[0017] In some embodiments, the pickling assembly includes a pickling cylinder, a pickling motor, and a support platform. The pickling cylinder has a pickling chamber inside, and the support platform is located in the pickling chamber. The pickling motor is connected to the support platform and is used to drive the support platform to move up and down in the pickling chamber so that the quartz sand located on the support platform comes into contact with the acidic solution in the pickling chamber.

[0018] In some embodiments, the support platform includes a main body, two telescopic plates, and two springs. The two telescopic plates are respectively connected to both sides of the main body via corresponding springs. The pickling cylinder includes a cylindrical cavity and a conical cavity. When the support platform is located in the cylindrical cavity, the cavity wall of the cylindrical cavity abuts against the two telescopic plates, causing the two springs to compress and accumulate elastic force. When the support platform is located in the conical cavity, the two springs can release elastic force to cause the corresponding telescopic plates to extend and abut against the cavity wall of the conical cavity.

[0019] In some embodiments, the magnetic separation assembly includes a magnetic separator and a guide, a magnetic roller, a lever, a first outlet, and a second outlet disposed inside the magnetic separator. The first outlet and the second outlet are respectively disposed on both sides of the magnetic roller. The first outlet is used to discharge the magnetically separated quartz sand. The lever is connected to the magnetic roller and is used to scrape off impurities located on the magnetic roller so that the impurities are discharged from the second outlet.

[0020] Secondly, the present invention also provides a filtration method, which is implemented by the above-described filtration system, and the filtration method includes the following steps:

[0021] S1. Pour the quartz sand to be filtered into the inner hopper, add water to the inner hopper, start the agitator to rotate, and agitate the quartz sand in the inner hopper. The muddy water is discharged from the drain outlet of the outer hopper. Take out the quartz sand after it has been deslimed.

[0022] S2, the quartz sand that has been deslimed by the desliming component is washed with water using a water washing component;

[0023] S3, using an acid washing assembly to acid wash the quartz sand that has been treated by the water washing assembly;

[0024] S4, use a magnetic separation component to remove impurities from the quartz sand after it has been treated by the acid washing component.

[0025] Compared with existing technologies, the filtration system provided by this invention, during the desliming process, first places the quartz sand to be deslimed in the inner hopper, then adds clean water to the inner hopper, and simultaneously drives the agitator to rotate, desliming the quartz sand in the inner hopper. The muddy water flows through the filter holes on the side wall of the inner hopper into the receiving cavity between the inner and outer hoppers, and is discharged through the drain outlet of the outer hopper. During the high-speed rotation of the agitator, the muddy water in the inner hopper can be driven to undergo centrifugal motion, allowing the muddy water to more fully pass through the filter holes and flow into the receiving cavity, resulting in more thorough friction between the quartz sand and high desliming efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the working process of the filtration system provided in an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the desliming assembly provided in an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the internal structure of the desliming assembly provided in an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of the water washing assembly provided in an embodiment of the present invention;

[0030] Figure 5 This is a schematic diagram of the pickling assembly provided in an embodiment of the present invention;

[0031] Figure 6 This is a schematic diagram of the structure of the magnetic separation component provided in an embodiment of the present invention. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0033] To address the technical problem that existing quartz sand desliming machines rely on continuous water flow to clean the sludge adhering to the quartz sand during operation, which wastes excessive water resources and results in sludge still settling and adhering to the quartz sand after separation, making it difficult to quickly process the sludge, this invention provides a filtration system that ensures that sludge essentially does not re-adhere to the quartz sand surface after separation, achieving high desliming efficiency.

[0034] It should be noted that the filtration system described in this invention is used for, but not limited to, quartz sand. For ease of explanation, this invention will only use the application of the filtration system to quartz sand as an example. The principle of the filtration system applied to other types of equipment is essentially the same as that applied to quartz sand, and will not be described in detail here.

[0035] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of a filtration system in one embodiment of the present invention. The filtration system includes a sludge removal component 1, a water washing component 2, an acid washing component 3, and a magnetic separation component 4.

[0036] The sludge desludge assembly 1 includes an inner hopper 11, an outer hopper 12, and an agitator 13. The outer wall of the inner hopper 11 and the inner wall of the outer hopper 12 are spaced apart to form a sludge-containing cavity 111. The side wall of the inner hopper 11 has filter holes 112 that communicate with the sludge-containing cavity 111. The outer hopper 12 has a drain outlet 121 that communicates with the sludge-containing cavity 111. The agitator 13 is located inside the inner hopper 11 and is used to agitate the quartz sand inside the inner hopper 11.

[0037] The inlet of the water washing assembly 2 is connected to the outlet of the desliming assembly 1. It is used to wash the quartz sand that has passed through the desliming assembly 1, further removing contaminants and improving the purity of the quartz sand. The inlet of the acid washing assembly 3 is connected to the outlet of the water washing assembly. It is used to acid wash the quartz sand after it has been washed by the water washing assembly 2, removing impurities such as rust from the surface of the quartz sand. The inlet of the magnetic separation assembly 4 is connected to the outlet of the acid washing assembly. It is used to magnetically separate the quartz sand after it has been treated by the acid washing assembly 3, removing metal and other impurities mixed in the quartz sand and further improving its purity.

[0038] In one embodiment, please refer to Figure 2 and Figure 3 The inner hopper 11 includes a first part 113 and a second part 114 connected to each other. The first part 113 is cylindrical and is used to accommodate the stirring element 13, allowing the stirring element 13 to slide up and down inside the first part 113 and compress the quartz sand located inside the second part 114. The second part 114 is conical and is used to accommodate quartz sand, and the side wall of the second part 114 is provided with the aforementioned filter holes 112. In this embodiment, the inner hopper 11 and the outer hopper 12 are rotatably connected by a bearing 14, allowing the inner hopper 11 to rotate relative to the outer hopper 12 and perform centrifugal motion, driving the sludge inside the inner hopper 11 to pass through the filter holes 112 and enter the receiving cavity 111. A drive motor 15 is provided on the top of the outer hopper 12. The drive motor 15 is connected to the inner hopper 11 and is used to drive the inner hopper 11 to rotate at high speed, so that the inner hopper performs centrifugal motion, accelerating the separation of sludge and quartz sand, which is beneficial to improving work efficiency.

[0039] The top of the outer hopper 12 also has a water inlet 115, which is used to connect to an external water source. The external water source supplies water to the inner hopper 11 through the water inlet 115.

[0040] In one embodiment, please refer to Figure 2The inner hopper 11 has a discharge port connected to a discharge component 16. The side wall of the discharge component 16 is sealed to the outer hopper 12. The discharge component 16 has a discharge channel extending through it. A sealing cover 17 is movably connected to the end of the discharge component 16 away from the inner hopper 11. The sealing cover 17 is slidably connected to the discharge component 16 and can switch between an open and closed state. When the sealing cover 17 is open, it allows the quartz sand inside the inner hopper 11 to flow out through the discharge channel. When the sealing cover 17 is closed, it prevents the quartz sand from falling out. During the quartz sand washing process, the sealing cover 17 can be closed first, and then opened after the sludge separation is complete to allow the quartz sand to be discharged.

[0041] In one embodiment, please refer to Figure 3 The sealing cap 17 is connected to the discharge port 16 via an elastic element (not shown in the figure). The operator can hold the sealing cap 17 and move it away from the discharge port 16 to open the discharge channel. At this time, the elastic element is stretched and accumulates elastic force. When the operator releases the sealing cap 17, the elastic element releases its elastic force to seal the discharge port 16.

[0042] In one embodiment, please refer to Figure 3 The agitator 13 includes a rotating shaft 131, a pressure plate 132, and multiple agitating teeth 133. One side of the pressure plate 132 is connected to the rotating shaft 131, and the other side is connected to the multiple agitating teeth 133, which are arranged on the same straight line. The rotating shaft 131 is used to connect to a motor. Driven by the motor, the rotating shaft 131 drives the pressure plate 132 and the multiple agitating teeth 133 to rotate, thereby agitating the quartz sand inside the inner hopper 11 to improve the desliming efficiency of the quartz sand. In this embodiment, the motor can also drive the rotating shaft 131 to move up and down, causing the pressure plate 132 to slide up and down along the inner wall of the first part 113, thus compacting the quartz sand downwards and increasing the friction between the quartz sand particles, which is beneficial for improving the desliming efficiency of the quartz sand.

[0043] In one embodiment, please refer to Figure 4The washing assembly 2 includes a housing 21, a washing drum 22, and a washing motor 23. The washing drum 22 is rotatably disposed inside the housing 21. The washing motor 23 is located on the top of the housing 21 and connected to the washing drum 22 to drive its rotation. The inner wall of the washing drum 22 has friction protrusions (not shown in the figure). The top and bottom of the housing 21 are respectively provided with an inlet pipe 211 and an outlet pipe 212. The inlet pipe 211 is used to connect to an external water source, and the outlet pipe 212 is used to discharge wastewater from inside the housing 21. The inlet pipe 211 and the outlet pipe 212 are controlled to open or close by corresponding switches. A top cover 213 is also provided on the top of the housing 21. The top cover 213 is detachably connected to the housing 21. Opening the top cover 213 allows the quartz sand to be washed to be poured into the washing drum 22. The side wall of the washing drum 22 has multiple water passages to allow clean water from inside the housing 21 to enter the washing drum 22 and contact the quartz sand. The washing motor 23 is located on the top cover 213. When in operation, the washing motor 23 drives the washing drum 22 to rotate, thereby rotating the quartz sand inside the washing drum 22 and improving the washing efficiency of the quartz sand. The inner wall of the washing drum 22 has friction protrusions, which can improve the friction efficiency on the quartz sand and help to clean the quartz sand more thoroughly.

[0044] In one embodiment, please refer to Figure 5 The pickling assembly 3 includes a pickling cylinder 31, a pickling motor 32, and a support platform 33. The pickling cylinder 31 contains a pickling chamber 311, and the support platform 33 is located within the pickling chamber 311. The pickling motor 32 is connected to the support platform 33 and drives the support platform 33 to move up and down within the pickling chamber 311, so that the quartz sand on the support platform 33 comes into contact with the acidic solution in the pickling chamber 311, thus pickling the quartz sand. In this embodiment, the pickling chamber 311 of the pickling cylinder 31 includes a cylindrical cavity 312 and a conical cavity 313 that are connected. The conical cavity 313 is used to hold the acidic solution. The support platform 33 is used to hold the quartz sand to be pickled. When the pickling motor 32 drives the support platform 33 to descend into the conical cavity 313 and come into contact with the acidic solution, the quartz sand can be immersed in the acidic solution for pickling and impurity removal.

[0045] In one embodiment, please refer to Figure 5The support platform 33 includes a main body 331, two telescopic plates 332, and two springs (not shown in the figure). The two telescopic plates 332 are connected to both sides of the main body 331 by corresponding springs. This can be understood as the springs being located inside the main body 331, with their ends connected to the main body 331 and the telescopic plates 332, respectively. When the support platform 33 is located in the cylindrical cavity 312, the cavity wall of the cylindrical cavity 312 abuts against the two telescopic plates 332, causing the two springs to compress and accumulate elastic force. When the support platform 33 is located in the conical cavity 313, the two springs release their elastic force, causing the corresponding telescopic plates 332 to extend and abut against the cavity wall of the conical cavity 313, ensuring that the telescopic plates 332 are always in contact with the inner wall of the pickling cavity 311, preventing the quartz sand on the support platform 33 from detaching. Both the telescopic plates 332 and the main body 331 have multiple through holes. When the support platform 33 is located in the conical cavity 313, acidic solution can flow into the quartz sand on the support platform 33 through the through holes to pickle the quartz sand. As the pickling motor 32 drives the bearing platform 33 to rise from the conical cavity 313 to the cylindrical cavity 312, the inner wall of the cylindrical cavity 312 drives the telescopic plate 332 to compress the spring and accumulate elastic force.

[0046] In one embodiment, please refer to Figure 6 The magnetic separation assembly 4 includes a magnetic separation box 41 and a first guide 42, a second guide 43, a magnetic roller 44, a lever 45, a first outlet 46, and a second outlet 47 disposed inside the magnetic separation box 41. The first outlet 46 and the second outlet 47 are respectively disposed on both sides of the magnetic roller 44. The first outlet 46 is used to discharge the quartz sand that has been magnetically separated. The lever 45 is connected to the magnetic roller 44 and is used to scrape off impurities located on the surface of the magnetic roller 44 so that the impurities are discharged from the second outlet 47. In this embodiment, the top of the magnetic separator 41 has a feed inlet 411 for the quartz sand to be magnetically separated. The quartz sand slides down through the first guide 42 to the second guide 43, and then slides down through the second guide 43 to contact the magnetic roller 44. Impurities in the quartz sand that can be magnetically attracted are adsorbed onto the surface of the magnetic roller 44. As the magnetic roller 44 continues to rotate, the impurities on the surface of the magnetic roller 44 come into contact with the paddle 45, which peels off the impurities. After the impurities detach from the magnetic roller 44, they fall into the second outlet 47 and are discharged. The first outlet 46 and the second outlet 47 are separated by a baffle 48 to prevent the quartz sand and impurities from mixing again.

[0047] Secondly, the present invention also provides a filtration method, which is implemented by the above-described filtration system 100, and the filtration method includes the following steps:

[0048] S1. Pour the quartz sand to be filtered into the inner hopper 11, add water to the inner hopper 11, start the agitator 13 to rotate, and agitate the quartz sand in the inner hopper 11. The muddy water is discharged from the drain outlet of the outer hopper 12, and the quartz sand after desliming is taken out.

[0049] S2, use water washing component 2 to wash the quartz sand that has been deslimed by desliming component 1;

[0050] S3, using pickling assembly 3 to pickle the quartz sand after it has been treated by water washing assembly 2;

[0051] S4, use magnetic separation component 4 to remove impurities from the quartz sand after it has been treated by acid washing component 3.

[0052] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A filtration system, characterized in that, include: The sludge removal assembly includes an inner hopper, an outer hopper, and an agitator. The inner hopper has filter holes on its side wall and a discharge port at its bottom. The outer hopper is rotatably fitted onto the inner hopper and forms a sludge-containing cavity with the outer wall of the inner hopper at a distance. The sludge-containing cavity is connected to the filter holes. The outer hopper has a drain port that is connected to the sludge-containing cavity. The agitator is located inside the inner hopper. The washing assembly has its inlet connected to the outlet of the inner hopper and is used to wash the quartz sand. A pickling assembly, the inlet of which is connected to the outlet of the washing assembly, is used for pickling quartz sand; and The magnetic separation component, whose inlet is connected to the outlet of the pickling component, is used to perform magnetic separation and impurity removal on the quartz sand. The pickling assembly includes a pickling cylinder, a pickling motor, and a support platform. The pickling cylinder has an pickling chamber, and the support platform is located in the pickling chamber. The pickling motor is connected to the support platform and drives the support platform to move up and down in the pickling chamber so that the quartz sand on the support platform comes into contact with the acidic solution in the pickling chamber. The support platform includes a main body, two telescopic plates, and two springs. The two telescopic plates are respectively connected to both sides of the main body through corresponding springs. The pickling cylinder includes a cylindrical cavity and a conical cavity. When the support platform is located in the cylindrical cavity, the cavity wall of the cylindrical cavity abuts against the two telescopic plates, causing the two springs to compress and accumulate elastic force. When the support platform is located in the conical cavity, the two springs can release elastic force to drive the corresponding telescopic plates to extend and abut against the cavity wall of the conical cavity.

2. The filtration system according to claim 1, characterized in that, The inner hopper includes a first part and a second part connected to each other. The first part is cylindrical and is used to accommodate the stirring component. The second part is conical and is used to accommodate quartz sand. The filter holes are provided on the side wall of the second part.

3. The filtration system according to claim 2, characterized in that, The discharge port of the inner hopper is connected to a discharge component, the side wall of which is sealed to the outer hopper. The discharge component has a discharge channel through it, and a sealing cover is movably connected to the end of the discharge component away from the inner hopper. When the sealing cover is opened, the quartz sand inside the inner hopper can flow out through the discharge channel.

4. The filtration system according to claim 3, characterized in that, The sealing cover is connected to the discharge component via an elastic element. When the sealing cover moves away from the discharge component to open the discharge channel, the elastic element accumulates elastic force, and the elastic element can also release elastic force to drive the sealing cover to seal the discharge component.

5. The filtration system according to claim 1, characterized in that, The stirring component includes a rotating shaft, a pressure plate, and multiple stirring teeth. One side of the pressure plate is connected to the rotating shaft, and the other side of the pressure plate is connected to multiple stirring teeth, which are arranged on the same straight line.

6. The filtration system according to claim 1, characterized in that, The washing assembly includes a housing, a washing drum, and a washing motor. The washing drum is rotatably disposed inside the housing. The washing motor is disposed on the top of the housing and connected to the washing drum to drive the washing drum to rotate. The inner wall of the washing drum has friction protrusions.

7. The filtration system according to claim 1, characterized in that, The magnetic separation assembly includes a magnetic separator and a guide, a magnetic roller, a lever, a first outlet, and a second outlet disposed inside the magnetic separator. The first outlet and the second outlet are respectively disposed on both sides of the magnetic roller. The first outlet is used to discharge the magnetically separated quartz sand. The lever is connected to the magnetic roller and is used to scrape off impurities located on the magnetic roller so that the impurities are discharged from the second outlet.

8. A filtration method, characterized in that, The filtering method is implemented using the filtering system as described in any one of claims 1-7, and the filtering method includes the following steps: S1. Pour the quartz sand to be filtered into the inner hopper, add water to the inner hopper, start the agitator to rotate, and agitate the quartz sand in the inner hopper. The muddy water is discharged from the drain outlet of the outer hopper. Take out the quartz sand after it has been deslimed. S2, the quartz sand that has been deslimed by the desliming component is washed with water using a water washing component; S3, using an acid washing assembly to acid wash the quartz sand that has been treated by the water washing assembly; S4, use a magnetic separation component to remove impurities from the quartz sand after it has been treated by the acid washing component.

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