Apparatus and method for separating solid particles from water in a liquid

Abstract

The application discloses a device and method for separating solid particles and water in liquid, wherein the device comprises a support, a pressure generator, a filter container and a percolation filter which are installed on the support; the filter container comprises a stirring section, a filtering section and a containing section which are connected in sequence and communicate with each other, the containing section is provided with an air hole, the negative pressure end of the pressure generator is connected with the air hole, the containing section is externally connected with a liquid discharge pipe, and the liquid discharge pipe is connected with the percolation filter; the percolation filter comprises a diatom ooze cylinder, a connecting head, a sealing element, a sealing ring and a biological filtration membrane, the sealing element is installed at one end of the diatom ooze cylinder, the connecting head is sealingly installed at the other end of the diatom ooze cylinder, the sealing ring is installed on the outer circumferential surface of the diatom ooze cylinder, an annular cavity is formed between the sealing ring and the diatom ooze cylinder, and the biological filtration membrane is arranged on the inner circumferential surface of the diatom ooze cylinder. Through the above arrangement, the bacteria liquid separation efficiency can be preferably improved, and the cost can be saved.

Description

Technical Field

[0001] This invention belongs to the technical field of bacterial percolation, specifically relating to an apparatus and method for separating solid particles and water from a liquid. Background Technology

[0002] Bacterial suspension is a mixture of fungal cells or spores containing bacteria and molds, including suspended solids, dissolved substances, metabolic products, and exogenous byproducts. In existing technologies, when extracting bacteria or spores from biological samples, the biological sample is typically pre-treated and mixed into a treatment solution. Then, the treatment solution containing the biological sample (bacterial suspension mixture) is centrifuged to achieve bacterial-liquid separation. During centrifugation, the container holding the bacterial-liquid mixture is mounted on the centrifuge rack, and the mixture is centrifuged to separate the fungal cells and molds from the liquid. Subsequent processing is then performed to obtain the corresponding bacteria or spores.

[0003] It can be seen that the existing technology of using centrifuges for bacterial liquid separation has several drawbacks. First, the use of centrifuges increases development costs. Second, the method of separating bacterial liquid using centrifuges is cumbersome to operate and has a slow separation efficiency. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention aims to provide an apparatus and method for separating solid particles and water in a liquid, which can improve the separation efficiency of bacterial solution and save costs.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] An apparatus for separating solid particles and water from a liquid includes a support frame and a pressure generator, a containment filter, and a percolator mounted on the support frame. The containment filter includes a stirring section, a filtering section, and a containment section connected in sequence and communicating with each other. The containment section has an air hole. The negative pressure end of the pressure generator is connected to the air hole. A drain pipe is connected to the outside of the containment section and is connected to the percolator. The percolator includes a diatomaceous earth cylinder, a connector, a seal, a sealing ring, and a biofiltration membrane. The seal is installed at one end of the diatomaceous earth cylinder, the connector is sealed at the other end of the diatomaceous earth cylinder, the sealing ring is installed on the outer circumferential surface of the diatomaceous earth cylinder, and an annular cavity is formed between the sealing ring and the diatomaceous earth cylinder. The biofiltration membrane is disposed on the inner circumferential surface of the diatomaceous earth cylinder.

[0007] Furthermore, the annular cavity is provided with water-absorbing resin.

[0008] Furthermore, the percolator also includes an upper end cover and a lower end ring cover, with the connector mounted on the upper end cover; a limiting ring extends outward from the outer circumference of the upper end cover plate, and the upper end cover plate is fastened to the end of the sealing ring by the limiting ring; the end face of the diatomaceous earth cylinder abuts against the upper end cover plate; an adhesive is provided at the connection position between the upper end cover plate, the sealing ring, and the diatomaceous earth cylinder; both the inner and outer circumferences of the lower end ring cover have protruding rings extending outward, and a slot is formed between the two protruding rings for the diatomaceous earth cylinder and the end of the sealing ring to be inserted and fitted; an adhesive is provided at the connection position between the upper end cover plate, the sealing ring, and the diatomaceous earth cylinder.

[0009] Furthermore, the sealing element is a sealing plug, which is interference-fitted to the end of the diatomaceous earth cylinder.

[0010] Furthermore, the sealing plug has a raised portion, which is located inside the diatomaceous earth cylinder.

[0011] Furthermore, a stirring chamber is formed within the stirring section. A liquid inlet is provided on the top surface of the stirring section, and a through hole communicating with the filtration section is opened on the inner bottom surface of the stirring chamber. A sealing cover is provided on the through hole, and an opening and closing device is provided inside the stirring chamber. The opening and closing end of the opening and closing device is connected to the sealing cover. A stirring component is rotatably installed inside the stirring chamber, and part of the stirring component extends out of the stirring section. A driving component is provided on the support, and the end of the stirring component extending out of the stirring section is connected to the driving end of the driving component.

[0012] Furthermore, the opening and closing component includes a linear extension, a straight rod, and a spring; the linear extension is mounted on the bracket, with its extended end facing the stirring section; the straight rod is inserted into the top surface of the stirring section, and the end of the straight rod along its length is directly opposite the extended end of the linear extension; the portion of the outer circumference of the straight rod outside the stirring section has a protruding abutment ring; the spring is sleeved on the outer circumference of the straight rod, with its two ends abutting against the abutment ring and the surface of the stirring section, respectively; a fixed seat is provided on the inner bottom surface of the stirring chamber, and the fixed seat is hinged to a transmission... The moving rod has one end hinged to the sealing cover, and the other end of the moving rod is opposite to the end of the straight rod that extends into the mixing chamber. A torsion spring is sleeved on the connecting shaft between the moving rod and the fixed seat. One end of the torsion spring is connected to the fixed seat, and the other end of the torsion spring is connected to the moving rod. When the straight protruding member extends its protruding end, it pushes the straight rod into the mixing chamber. The end of the straight rod presses against the end of the moving rod, causing the other end of the moving rod to flip upward and disengage the sealing cover from the through hole, so that the mixing chamber and the filter section are connected.

[0013] Furthermore, the filtration section includes a synchronous transmission component and several edge-connected filter plates. The connection positions between adjacent filter plates are sealed, and adjacent filter plates are spaced apart. The mesh size of the filter plates gradually increases along the filtration direction. A scraper is rotatably provided on the front side of each filter plate near the filtration direction, and the scrapers are all connected to the drive end of the synchronous transmission component.

[0014] Furthermore, the synchronous transmission component includes a rotating component, a drive gear, a transmission gear disk, and a drive shaft. The rotating component is installed on the outside of the filter plate at the end along the filtration direction. The drive gear is installed on the rotating end of the rotating component. The transmission gear disk is rotatably installed on the bottom surface of the filter plate at the end along the filtration direction. The drive gear meshes with the teeth on the surface of the gear disk. The drive shaft is connected to the rotating shaft of the transmission gear disk. Several filter plates are provided with straight holes for the drive shaft to pass through. The scraper is connected to the drive shaft.

[0015] A method for separating solid particles and water from a liquid, using the aforementioned apparatus for separating solid particles and water from a liquid, includes the following steps:

[0016] S10: The stirring step of entering the stirring section. In this step, the pump is started to discharge the corresponding amount of mixed solution into the stirring chamber through the liquid inlet. The drive is started to make the stirring component stir the mixed liquid so that the solid particles in the mixed liquid are crushed and uniformly mixed with the liquid to form a homogeneous solution. The opening and closing component is started to use the opening and closing component to drive the sealing cover away from the through hole so that the through hole is connected to the filtration section, and then the homogeneous solution in the stirring chamber is discharged into the filtration section through the through hole.

[0017] S20: The filtration step into the filtration section. In this step, the pressure generator is activated to create a negative pressure environment in both the filtration section and the containment section. At the same time, it provides guiding force for the fluid to flow downwards in the filtration section. During this process, the homogenized solution passes through multiple filter plates from top to bottom under the action of gravity and air pressure for multiple filtrations. The filter plates filter out solid impurities and larger particles in the homogenized solution and attach them to the surface of the filter plates. The filtrate after multiple filtrations is discharged into the containment section and then discharged into the percolator through the drain pipe.

[0018] S30: Entering the percolation step, in this step, the pressure generator is activated to create a negative pressure environment in both the containment section and the percolator, thus creating a pressure difference between the diatomaceous earth cylinder and the annular cavity. This provides a guiding force for the percolator to move towards the annular cavity during the percolation process. During this process, the filtrate is filtered by the biological filter membrane to remove bacteria and mold, which then adhere to the inner surface of the biological filter membrane. Simultaneously, the filtrate is percolated by the diatomaceous earth cylinder to remove water or liquid, which then enters the annular cavity after passing through the diatomaceous earth cylinder and is absorbed by the absorbent resin. The suction force of the absorbent resin further provides a guiding force for the percolation direction of the filtrate.

[0019] The present invention has the following beneficial effects:

[0020] 1. The apparatus for separating solid particles and water from a liquid according to the present invention, by setting up a solute filter, utilizes the stirring section within the filter to stir a mixture of fecal sample and treatment liquid, thereby pulverizing the fecal sample into fine particles and thoroughly mixing it with the treatment liquid to form a mixture, which facilitates the subsequent separation of microorganisms and molds from the mixture; the filtration section of the solute filter filters the mixture to remove particulate impurities, and the final filtered filtrate is discharged into a percolator through the drain pipe of the containment section. During this process, a pressure generator also provides a negative pressure environment for the filtration section to improve... High filtration efficiency; by setting up a percolator and using a pressure generator to provide a negative pressure environment for the percolator, a pressure difference exists between the diatomaceous earth cylinder and the annular cavity, i.e., the pressure inside the diatomaceous earth cylinder is lower than the pressure inside the annular cavity. This provides a guiding force for the percolation direction of the filtrate as it flows through the diatomaceous earth cylinder into the annular cavity, and allows the filtrate to pass through the biological filter membrane, separating the microorganisms and molds from the water or liquid. The microorganisms and molds remain on the inner surface of the biological filter membrane inside the diatomaceous earth cylinder after filtration, while the water or liquid enters the annular cavity after percolation through the diatomaceous earth cylinder, thus achieving the function of microbial-liquid separation. Furthermore, by setting a seal at one end of the diatomaceous earth cylinder, the corresponding microorganisms and molds can be removed from the end of the diatomaceous earth cylinder after the seal is removed, thus facilitating the removal of microorganisms and molds. Compared to the existing technology that uses a centrifuge for microbial-liquid separation, this invention combines a container filter and a percolator to achieve microbial-liquid separation in one step, offering the advantages of high efficiency and ease of operation.

[0021] 2. The method for separating solid particles and water in a liquid according to the present invention includes three steps: stirring, filtering, and percolation. In the stirring step, the solid particles (fecal sample) are stirred and crushed by the drive and stirring components and then fully mixed with the treatment liquid to form a mixture. This facilitates the thorough mixing of bacteria and mold in the treatment liquid, while separating water-insoluble solid impurities or particles. This makes it easier to separate solid impurities or particles through filtration in the subsequent process, and ultimately facilitates the separation of bacteria and mold through the percolation filter. In the filtration step, multiple filter plates are used for multiple filtrations, thereby increasing the proportion of bacteria and mold in the final filtrate to improve the efficiency of subsequent percolation. A pressure generator is used to provide a negative pressure environment for the filtration section to improve filtration guidance and efficiency. In the percolation step, a biofiltration membrane is used to filter bacteria and mold from the filtrate and separate them from water or liquid. The filtered bacteria and mold remain on the inner surface of the biofiltration membrane inside the diatomaceous earth cylinder, while the water or liquid enters the annular cavity after percolation through the diatomaceous earth cylinder and is absorbed by the water-absorbing resin 9. The water-absorbing resin 9 can improve the percolation efficiency. At the same time, a pressure generator is used to provide a negative pressure environment for the percolator to create a pressure difference between the diatomaceous earth cylinder and the annular cavity, thereby improving the percolation efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 This is a schematic diagram of the support and solute filter of the present invention.

[0024] Figure 3 This is a schematic diagram of the support and solute filter from another perspective of the present invention.

[0025] Figure 4 This is a cross-sectional view of the support and solute filter of the present invention.

[0026] Figure 5 for Figure 3 A partial sectional view.

[0027] Figure 6 This is an exploded cross-sectional view of the solute filter of the present invention.

[0028] Figure 7 This is a schematic diagram of the percolator of the present invention.

[0029] In the picture:

[0030] 1. Bracket;

[0031] 2. Container filter;

[0032] 3. Stirring section; 31. Liquid inlet; 32. Through hole; 33. Drive component; 34. Stirring component; 35. Fixed base; 351. Transmission rod; 3511. Positioning groove; 352. Torsion spring; 353. Sealing cover; 36. Opening and closing component; 361. Straight extension component; 362. Straight rod; 3621. Abutment ring; 363. Spring;

[0033] 4. Filter section; 41. Filter unit; 411. Filter plate; 4111. First insert ring; 412. Disc-shaped frame plate; 4121. Second insert ring; 413. Scraper; 4131. Integrated block; 4132. Mating hole; 414. Support block; 4141. Connecting hole; 42. Synchronous transmission component; 421. Rotating component; 422. Drive gear; 423. Transmission gear plate; 424. Drive shaft; 43. Conical pocket plate; 431. Channel;

[0034] 5. Receptacle section; 51. Vent;

[0035] 6. Percolator; 61. Diatomaceous earth cylinder; 62. Sealing ring; 63. Top cover; 631. Connector; 632. Limiting ring; 64. Bottom ring cover; 641. Raised ring; 65. Sealing plug; 651. Protrusion; 66. Biofiltration membrane; 67. Adhesive component; 68. Adhesive component; 69. Water-absorbing resin. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Terms such as “upper,” “inner,” “middle,” “left,” “right,” and “one” used in this specification are merely for clarity of description and are not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0037] Example 1

[0038] The device for separating solid particles and water in a liquid according to the present invention is used to replace the centrifuge of the prior art. After stirring the mixed solution of feces and treatment liquid, impurities are filtered out, and finally the filtered filtrate is subjected to bacterial separation to achieve the function of separating bacteria and mold in one step, thereby improving the bacterial separation efficiency and being easy to operate.

[0039] An apparatus for separating solid particles and water from a liquid, such as Figures 1 to 7As shown, the system includes a support 1, a pressure generator (not shown), a container filter 2, and a percolator 6 mounted on the support 1. The container filter 2 includes a stirring section 3, a filtration section 4, and a container section 5 connected sequentially from top to bottom. The stirring section 3 is used to stir the mixed solution to ensure that the solids in the stirred solution are fully mixed with the solution to form a homogeneous solution. The filtration section 4 is used to perform multiple filtrations on the homogeneous solution to separate solid particles of different sizes in the homogeneous solution. The container section 5 is used to store the filtrate remaining after filtration of the homogeneous solution. The side of section 5 is provided with an air hole 51. The pressure generator (not shown) can be a vacuum pump, compressor, etc. The pressure generating end of the pressure generator is connected to the air hole 51 to provide a negative pressure environment for the container filter 2 and the permeate 6. The bottom surface of the container section 5 is connected to a drain pipe (not shown), which is connected to the permeate 6 to discharge the filtrate of the container section 5 into the permeate 6. The permeate 6 is used to permeate the filtrate, thereby separating the bacteria and mold in the filtrate from the aqueous solution. The high pressure environment can improve the efficiency of bacterial-liquid separation of the filtrate through the permeate 6.

[0040] like Figures 3 to 6 As shown, a mixing chamber is formed within the mixing section 3. A liquid inlet 31 is provided on the top surface of the mixing chamber. The liquid inlet 31 is connected to a corresponding pumping component through a pipe to discharge a corresponding amount of mixed liquid into the mixing chamber. A through hole 32 communicating with the filtration section 4 is provided on the inner bottom surface of the mixing chamber. A sealing cover 353 is provided on the through hole 32. An opening and closing component 36 is provided inside the mixing section 3. The opening and closing end of the opening and closing component 36 is connected to the sealing cover 353. The opening and closing component 36 can be used to move the sealing cover 353, thereby realizing the function of opening and closing the through hole 32 and controlling the communication between the mixing chamber and the filtration section 4.

[0041] To open and close the through hole 32 using the movable sealing cover 353 of the opening and closing component 36, the opening and closing component 36 includes a linear extension 361, a straight rod 362, and a spring 363. The linear extension 361 is mounted on the bracket 1 and can be a structure with an extension function, such as a linear electric cylinder, pneumatic cylinder, or hydraulic cylinder. The extended end of the linear extension 361 faces the top surface of the stirring section 3. The straight rod 362 is inserted into the top surface of the stirring section 3, and the insertion gap between the straight rod 362 and the stirring section 3 is sealed. This sealing treatment can... Rubber or similar material is added at the insertion point between the straight rod 362 and the stirring section 3; the end of the straight rod 362 along its length is directly opposite the protruding end of the straight extension 361, and the part of the outer circumference of the straight rod 362 outside the stirring section 3 has a protruding abutment ring 3621. The spring 363 is sleeved on the outer circumference of the straight rod 362, and the two ends of the spring 363 abut against the abutment ring 3621 and the surface of the stirring section 3, respectively. Therefore, in the initial state of the spring 363, the straight rod 362 is partially extended outside the stirring section 3 due to the restoring action of the spring 363.

[0042] A fixed seat 35 is provided on the inner bottom surface of the mixing chamber. A transmission rod 351 is hinged to the fixed seat 35. One end of the transmission rod 351 is hinged to the sealing cover 353. The other end of the transmission rod 351 is opposite to the end of the straight rod 362 that extends into the mixing chamber along the length direction of the straight rod 362. A torsion spring 352 is sleeved on the connecting shaft between the transmission rod 351 and the fixed seat 35. One end of the torsion spring 352 is connected to the fixed seat 35, and the other end of the torsion spring 352 is connected to the transmission rod 351. When the torsion spring 352 is in its initial state, due to the elastic force of the torsion spring 352 about the connecting shaft between the transmission rod 351 and the fixed seat 35 toward the sealing cover 353, the transmission rod 351 drives the sealing cover 353 to cover the through hole 32.

[0043] Therefore, when the through hole 32 is opened using the opening / closing member 36, the linear extension member 361 is activated, causing it to extend its protruding end and push the straight rod 362 out of the mixing chamber. The end of the straight rod 362 presses against the end of the transmission rod 351, causing the other end of the transmission rod 351 to flip upwards and disengage the sealing cover 353 from the through hole 32, thus connecting the mixing chamber and the filter section 4. To ensure that the straight rod 362 can effectively push the end of the transmission rod 351, a positioning groove 3511 is provided at the end of the transmission rod 351 furthest from the sealing cover 353 for the straight rod 362 to engage.

[0044] To achieve the function of stirring the mixture in the mixing chamber, a stirring component 34 is rotatably installed in the mixing chamber. The stirring component 34 includes a stirring shaft and stirring blades. The stirring shaft is rotatably engaged with the inner top surface of the mixing chamber, and the stirring shaft extends out of the mixing section 3. A drive component 33 is installed on the bracket 1. The drive component 33 is a motor. The end of the stirring shaft extending out of the mixing section 3 is connected to the drive end of the drive component 33.

[0045] like Figures 2 to 5As shown, the filter section 4 includes a synchronous transmission component 42, several filter units 41 with their edges connected, and a conical baffle plate 43. Each filter unit 41 includes a filter plate 411 and a disc-shaped frame plate 412. The edge shape of the disc-shaped frame plate 412 is consistent with the edge shape of the filter plate 411. The edge of the filter plate 411 has a first insert ring 4111 protruding upward, and the edge of the disc-shaped frame plate 412 has a second insert ring 4121 protruding upward. The disc-shaped frame plate 412 and the first insert ring 4111 of the filter plate 411 are inserted into each other. The filter plate 411 of the upper filter unit 41 is inserted into the second insert ring 4121 of the disc-shaped frame plate 412 of the lower filter unit 41, thereby realizing the function of connecting adjacent filter units 41. The mating positions between the disc-shaped frame plate 412 and the first insert ring 4111, as well as the mating positions between the filter plate 411 and the second insert ring 4121, are all sealed to improve the sealing performance of the filter section 4. At the same time, the adjacent filter plates 411 are spaced apart, and the filter mesh count of several filter plates 411 gradually increases from top to bottom in the filtration direction to improve the filtration accuracy. The conical pocket plate 43 is connected to the edge of the filter plate 411 of the lowest filter unit 41, and the conical pocket plate 43 has a channel 431 that communicates with the receiving section 5.

[0046] The filter plate 411 is equipped with scraper discs 413, which are located between the filter plate 411 and the disc-shaped frame plate 412. Several scraper discs 413 are connected to the drive end of the synchronous transmission member 42, so that the synchronous transmission member 42 can simultaneously drive several scraper discs 413 to rotate and scrape off the filter residue on adjacent filter plates 411. This is to achieve the function of the synchronous transmission member 42 simultaneously driving the scraper discs 413 to rotate.

[0047] The synchronous transmission component 42 includes a rotating component 421, a drive gear 422, a transmission gear disk 423, and a drive shaft 424. The rotating component 421 can be a motor or electric motor. The rotating component 421 is installed on the outer peripheral side of the filter plate 411 at the end (lowest) along the filtration direction. The drive gear 422 is installed on the rotating end of the rotating component 421. The transmission gear disk 423 is rotatably installed on the bottom surface of the filter plate 411 at the end (lowest) along the filtration direction. The drive gear 422 meshes with the teeth on the surface of the transmission gear disk, so that the rotating component 421 drives the drive gear 422 to rotate, and then the drive gear 422 drives the transmission gear disk 423 to rotate. The drive shaft 424 is connected to the transmission gear disk 424. The gear disc 423 is connected, and the drive shaft 424 is coaxially arranged with the transmission gear disc 423. Several filter plates 411 are provided with straight holes (not shown) for the drive shaft 424 to pass through. The drive shaft 424 also passes through several disc-shaped frame plates 412. The middle part of the scraper 413 is integrally connected with an integral block 4131. The integral block 4131 is provided with a mating hole 4132, which is inserted and mated with the drive shaft 424. The end face of the drive shaft 424 is rectangular. Therefore, by starting the rotating part 421, the drive gear 422 drives the transmission gear disc 423 and the drive shaft 424 to rotate, thereby driving multiple scrapers to rotate simultaneously and scraping off the filter residue on the connected filter plates 411.

[0048] To improve the support above the disc-shaped frame plate 412, a support block 414 is provided above the disc-shaped frame plate 412. The support block 414 has a connecting hole 4141 for the drive shaft 424 to pass through, and the connecting hole 4141 is inserted into the groove of the drive shaft 424. At the same time, the top surfaces of both the support block 414 and the integral block 4131 are rotatably provided with ball bearings to reduce friction.

[0049] like Figure 7As shown, the percolator 6 includes a diatomaceous earth cylinder 61, a sealing ring 62, an upper end cover 63, a lower end cover 64, a connector 631, a sealing element, a biofiltration membrane 66, and absorbent resin 69. The sealing ring 62 is fitted around the outer periphery of the diatomaceous earth cylinder 61, forming an annular cavity between the sealing ring 62 and the diatomaceous earth cylinder 61. A limiting ring 632 extends outward from the outer periphery of the upper end cover 63, and the upper end cover 63 is fastened to the end of the sealing ring 62 by the limiting ring 632. The end face of the diatomaceous earth cylinder 61 abuts against the upper end cover 63. The upper end cover 63, the sealing ring 62, and the sealing ring 64 are connected. An adhesive component 67 is provided at the connection point between the diatomaceous earth cylinders 61; both the inner and outer circumferential surfaces of the lower end ring cover 64 have protruding rings 641 extending outwards, forming a slot between the two protruding rings 641 for the diatomaceous earth cylinder 61 and the end of the sealing ring 62 to be inserted and mated; an adhesive component 68 is provided at the connection point between the upper end cover 63 plate, the sealing ring 62 and the diatomaceous earth cylinder 61; wherein, both the adhesive component 67 and the adhesive component 68 can be made of glue or solid rubber to improve the sealing of the connection point, and at the same time realize the connection of the diatomaceous earth cylinder 61 and the sealing ring 62 to form an integral structure. The connector 631 is integrally installed on the upper end cover 63, and the connector 631 is connected to the inside of the diatomaceous earth cylinder 61. The connector 631 is used to connect to the drain pipe of the filter 2 to drain the filtrate in the containing section 5 into the diatomaceous earth cylinder 61.

[0050] A biofiltration membrane 66 is disposed on the inner circumferential surface of the diatomaceous earth cylinder 61. A sealing element is installed at the end of the diatomaceous earth cylinder 61 away from the connector 631. The sealing element is a sealing plug 65, which is interference-fitted to the end of the diatomaceous earth cylinder 61. Simultaneously, the sealing plug 65 has a protrusion 651 protruding from its end face towards the diatomaceous earth cylinder 61, and the protrusion 651 is located inside the diatomaceous earth cylinder 61. Therefore, when the filtrate is discharged into the diatomaceous earth cylinder 61 through the connector 631, the protrusion 651 reduces the accumulation of filtrate at the bottom of the diatomaceous earth cylinder 61, and simultaneously causes the filtrate to move closer to the inner circumferential surface of the diatomaceous earth cylinder 61, allowing more filtrate to pass through the biofiltration membrane 66 for filtration, thereby improving the percolation efficiency.

[0051] Furthermore, the absorbent resin 69 is fixedly disposed on the inner bottom surface of the annular cavity. Therefore, when water and liquid in the filtrate permeate through the diatomaceous earth cylinder 61 into the annular cavity, they can be absorbed by the absorbent resin 69. The absorbent resin 69 enhances the guiding effect of the filtrate from the biological filter membrane 66 to the annular cavity, thereby improving the permeation efficiency. During the permeation process, the biological filter membrane 66 filters and retains the bacteria and mold in the filtrate within the diatomaceous earth cylinder 61, while the water or liquid in the filtrate is absorbed by the absorbent resin 69 after passing through the biological filter membrane 66 and the diatomaceous earth cylinder 61.

[0052] In summary, the apparatus for separating solid particles and water from a liquid according to the present invention, by incorporating a solute filter, utilizes the stirring section 3 within the filter to stir the mixture of fecal sample and treatment liquid, thereby pulverizing the fecal sample into fine particles and thoroughly mixing it with the treatment liquid to form a mixture, which facilitates the subsequent separation of bacteria and molds from the mixture. The filtration section 4 of the solute filter filters the mixture to remove particulate impurities. Finally, the filtered filtrate is discharged into the percolator through the drain pipe of the containing section 5. During this process, the pressure generator also provides a negative pressure environment for the filtration section 4 to improve the filtration efficiency. The percolator 6 is configured with a pressure generator to provide a negative pressure environment, creating a pressure difference between the diatomaceous earth cylinder 61 and the annular cavity. Specifically, the pressure inside the diatomaceous earth cylinder 61 is lower than the pressure inside the annular cavity. This provides a guiding force for the percolation direction of the filtrate as it flows through the diatomaceous earth cylinder 61 into the annular cavity, and allows the filtrate to pass through the biological filter membrane 66, separating the microorganisms and molds from the water or liquid. The microorganisms and molds remain on the inner surface of the biological filter membrane 66 inside the diatomaceous earth cylinder 61, while the water or liquid enters the annular cavity after percolation through the diatomaceous earth cylinder 61, thus achieving the function of separating the microorganisms and liquid. Furthermore, a seal is provided at one end of the diatomaceous earth cylinder 61. Removing the seal allows the microorganisms and molds to be easily removed from the end of the diatomaceous earth cylinder 61. Compared with the existing technology that uses a centrifuge for bacterial liquid separation, the present invention combines the container filter 2 and the permeate filter 6 to achieve bacterial liquid separation in one step, which has the advantages of high efficiency and simple operation.

[0053] Example 2

[0054] A method for separating solid particles and water from a liquid, using the apparatus for separating solid particles and water from a liquid as described in Example 1, includes the following steps:

[0055] S10: Enter the stirring step of stirring section 3. In this step, the pump is started to discharge the corresponding amount of mixed solution into the stirring chamber through the liquid inlet 31. The drive unit 33 is started so that the stirrer 34 stirs the mixed liquid to crush the solid particles in the mixed liquid and mix them evenly with the liquid to form a homogeneous solution. The opening and closing unit 36 ​​is started so that the opening and closing unit 36 ​​drives the sealing cover 353 away from the through hole 32 so that the through hole 32 is connected to the filter section 4, and then the homogeneous solution in the stirring chamber is discharged into the filter section 4 through the through hole 32.

[0056] S20: The filtration step of entering the filtration section 4. In this step, the pressure generator is activated to make both the filtration section 4 and the containment section 5 a negative pressure environment. At the same time, it provides guiding force for the fluid to flow from top to bottom in the filtration section 4. During this process, the homogeneous solution passes through multiple filter plates 411 from top to bottom under the action of gravity and air pressure for multiple filtrations. The filter plates 411 filter out solid impurities and larger particles in the homogeneous solution and attach them to the upper surface of the filter plates 411. The filtrate after multiple filtrations is discharged into the containment section 5 and then discharged into the permeate filter 6 through the drain pipe.

[0057] During the filtration process, the rotating component 421 is activated to make the drive gear 422 rotate. The drive gear 422 meshes with the teeth of the transmission gear disk 423, thereby driving the gear disk to rotate. At the same time, the drive shaft 424 rotates synchronously and drives multiple scraper disks 413 connected to the drive shaft 424 to rotate. The scraper disks 413 scrape the filter residue on the filter plate 411, thereby improving the filtration efficiency.

[0058] S30: Entering the percolation step, in this step, the pressure generator is activated to create a negative pressure environment in both the containment section 5 and the percolator, thus creating a pressure difference between the diatomaceous earth cylinder 61 and the annular cavity, providing a guiding force for the percolator to percolate towards the annular cavity during the percolation process; during this process, the filtrate is filtered by the biological filter membrane 66 to remove bacteria and mold, causing the bacteria and mold to be filtered and attached to the inner surface of the biological filter membrane 66, while the filtrate is percolated by the diatomaceous earth cylinder 61 to remove water or liquid, allowing the water or liquid to enter the annular cavity after passing through the diatomaceous earth cylinder 61 and be absorbed by the water-absorbing resin 69, using the suction force of the water-absorbing resin 69 to further provide a guiding force for the percolation direction of the filtrate.

[0059] In summary, the method for separating solid particles and water in a liquid according to the present invention involves three steps: stirring, filtration, and percolation. In the stirring step, the driving component 33 and the stirring component 34 are used to stir and crush the solid particles (fecal sample) and then mix them thoroughly with the treatment liquid to form a mixture. This facilitates the thorough mixing of bacteria and molds in the treatment liquid, while separating water-insoluble solid impurities or particles. This makes it easier to separate the solid impurities or particles through filtration in the subsequent process, and ultimately facilitates the separation of bacteria and molds through the percolator 6. In the filtration step, multiple filter plates 411 are used for multiple filtrations, thereby increasing the proportion of bacteria and mold in the final filtrate to improve the subsequent percolation efficiency. A pressure generator is used to provide a negative pressure environment for the filtration section 4 to improve filtration guidance and efficiency. In the percolation step, a biofiltration membrane 66 is used to filter bacteria and mold in the filtrate and separate water or liquid. After filtration, the bacteria and mold remain on the inner surface of the biofiltration membrane 66 inside the diatomaceous earth cylinder 61, while the water or liquid percolates through the diatomaceous earth cylinder 61 and enters the annular cavity, where it is absorbed by the water-absorbing resin 69. The water-absorbing resin 69 can improve the percolation efficiency. At the same time, a pressure generator is used to provide a negative pressure environment for the percolator 6, creating a pressure difference between the diatomaceous earth cylinder 61 and the annular cavity to improve the percolation efficiency.

[0060] The embodiments of the present invention are not limited thereto. Based on the above description of the present invention, and using common technical knowledge and conventional means in the field, the present invention can be modified, replaced or combined in various other forms without departing from the basic technical idea of ​​the present invention, and all such modifications, replacements or combinations fall within the scope of protection of the present invention.

Claims

1. An apparatus for separating solid particles and water from a liquid, characterized in that, Includes a support frame and a pressure generator, a containment filter, and a percolator mounted on the support frame; The containment filter includes a stirring section, a filtering section and a containment section connected in sequence and communicating with each other. The containment section has an air hole. The negative pressure end of the pressure generator is connected to the air hole. A drain pipe is connected to the outside of the containment section and is connected to the permeate filter. A stirring chamber is formed within the stirring section. A liquid inlet is provided on the top surface of the stirring section. A through hole communicating with the filtration section is opened on the inner bottom surface of the stirring chamber. A sealing cover is provided on the through hole. An opening and closing component is provided inside the stirring chamber. The opening and closing end of the opening and closing component is connected to the sealing cover. A stirring component is rotatably installed inside the stirring chamber. A portion of the stirring component extends out of the stirring section. A driving component is provided on the support. The end of the stirring component extending out of the stirring section is connected to the driving end of the driving component. The filtration section includes a synchronous transmission component, several edge-connected filtration units, and a conical pocket plate. Each filtration unit includes a filter plate and a disc-shaped frame plate. The edge shape of the disc-shaped frame plate is consistent with the edge shape of the filter plate. The edge of the filter plate has a first insert ring protruding upwards, and the edge of the disc-shaped frame plate has a second insert ring protruding upwards. The disc-shaped frame plate and the first insert ring of the filter plate are inserted into each other. The filter plate of the upper filtration unit is inserted into the second insert ring of the disc-shaped frame plate of the lower filtration unit, thereby realizing the function of connecting adjacent filtration units. Adjacent filter plates are spaced apart, and the filtration mesh count of several filter plates gradually increases from top to bottom. The conical pocket plate is connected to the edge of the filter plate of the lowermost filtration unit, and the conical pocket plate has a channel communicating with the receiving section. The filter plate is rotatably provided with a scraper on the front side near the filtration direction. The scraper is located between the filter plate and the disc-shaped frame plate. Several scrapers are connected to the drive end of the synchronous transmission component. The synchronous transmission component includes a rotating component, a drive gear, a transmission gear disk, and a drive shaft. The rotating component is mounted on the outer peripheral side of the filter plate at the end along the filtration direction. The drive gear is mounted on the rotating end of the rotating component. The transmission gear disk is rotatably mounted on the bottom surface of the filter plate at the end along the filtration direction. The drive gear meshes with the teeth on the surface of the gear disk, so that the rotating component drives the drive gear to rotate, and then the drive gear drives the transmission gear disk to rotate. The drive shaft is connected to the transmission gear disk and is coaxial with the transmission gear disk. Several filter plates are provided with straight holes for the drive shaft to pass through. The drive shaft also passes through several disc-shaped frame plates. The scraper is connected to the drive shaft. By activating the rotating component, the drive gear drives the transmission gear disk and the drive shaft to rotate, which in turn drives multiple scrapers to rotate simultaneously and scrape off the filter residue on the connected filter plates. The percolator includes a diatomaceous earth cylinder, a connector, a seal, a sealing ring, and a biofiltration membrane. The seal is installed at one end of the diatomaceous earth cylinder, the connector is sealed at the other end of the diatomaceous earth cylinder, the sealing ring is installed on the outer circumferential surface of the diatomaceous earth cylinder, and an annular cavity is formed between the sealing ring and the diatomaceous earth cylinder. The biofiltration membrane is disposed on the inner circumferential surface of the diatomaceous earth cylinder.

2. The apparatus for separating solid particles and water from a liquid as described in claim 1, characterized in that, The annular cavity is filled with absorbent resin.

3. The apparatus for separating solid particles and water from a liquid as described in claim 1, characterized in that, The percolator also includes an upper end cover and a lower end ring cover, and the connector is installed on the upper end cover; The outer periphery of the upper cover plate extends outward with a limiting ring, and the upper cover plate is fastened to the end of the sealing ring by the limiting ring. The end face of the diatom mud tube abuts against the upper cover plate, and an adhesive is provided at the connection position between the upper cover plate, the sealing ring and the diatom mud tube. Both the inner and outer circumferential surfaces of the lower end ring cover have protruding rings extending outwards, and a slot is formed between the two protruding rings for the diatom mud tube and the end of the sealing ring to be inserted and fitted. An adhesive joint is provided at the connection position between the upper end cover plate, the sealing ring and the diatom mud tube.

4. The apparatus for separating solid particles and water from a liquid as described in claim 1, characterized in that, The sealing element is a sealing plug, which is interference-fitted to the end of the diatomaceous earth cylinder.

5. The apparatus for separating solid particles and water from a liquid as described in claim 4, characterized in that, The sealing plug has a raised portion, which is located inside the diatomaceous earth cylinder.

6. The apparatus for separating solid particles and water from a liquid as described in claim 1, characterized in that, The opening and closing mechanism includes a linear extension, a straight rod, and a spring. The linear extension is mounted on the bracket, with its extended end facing the stirring section. The straight rod is inserted into the top surface of the stirring section, and its length end is directly opposite the extended end of the linear extension. A contact ring protrudes from the outer circumference of the straight rod outside the stirring section. The spring is sleeved on the outer circumference of the straight rod, with its two ends abutting against the contact ring and the surface of the stirring section, respectively. A fixed seat is provided on the inner bottom surface of the stirring chamber, and a transmission rod is hinged to the fixed seat. One end of the transmission rod is hinged to the sealing cover, and the other end of the transmission rod is opposite to the end of the straight rod that extends into the mixing chamber. A torsion spring is sleeved on the connecting shaft between the transmission rod and the fixed base. One end of the torsion spring is connected to the fixed base, and the other end of the torsion spring is connected to the transmission rod. When the straight protruding member extends its protruding end, it pushes the straight rod into the mixing chamber. The end of the straight rod presses against the end of the transmission rod, causing the other end of the transmission rod to flip upward and disengage the sealing cover from the through hole, so that the mixing chamber and the filter section are connected.

7. A method for separating solid particles and water from a liquid, using the apparatus for separating solid particles and water from a liquid as described in any one of claims 1 to 6, characterized in that, Includes the following steps: S10: The stirring step of entering the stirring section. In this step, the pump is started to discharge the corresponding amount of mixed solution into the stirring chamber through the liquid inlet. The drive is started to make the stirring component stir the mixed liquid so that the solid particles in the mixed liquid are crushed and uniformly mixed with the liquid to form a homogeneous solution. The opening and closing component is started to use the opening and closing component to drive the sealing cover away from the through hole so that the through hole is connected to the filtration section, and then the homogeneous solution in the stirring chamber is discharged into the filtration section through the through hole. S20: The filtration step into the filtration section. In this step, the pressure generator is activated to create a negative pressure environment in both the filtration section and the containment section. At the same time, it provides guiding force for the fluid to flow downwards in the filtration section. During this process, the homogenized solution passes through multiple filter plates from top to bottom under the action of gravity and air pressure for multiple filtrations. The filter plates filter out solid impurities and larger particles in the homogenized solution and attach them to the surface of the filter plates. The filtrate after multiple filtrations is discharged into the containment section and then discharged into the percolator through the drain pipe. S30: Entering the percolation step, in this step, the pressure generator is activated to create a negative pressure environment in both the containment section and the percolator, thus creating a pressure difference between the diatomaceous earth cylinder and the annular cavity. This provides a guiding force for the percolator to move towards the annular cavity during the percolation process. During this process, the filtrate is filtered by the biological filter membrane to remove bacteria and mold, which then adhere to the inner surface of the biological filter membrane. Simultaneously, the filtrate is percolated by the diatomaceous earth cylinder to remove water or liquid, which then enters the annular cavity after passing through the diatomaceous earth cylinder and is absorbed by the absorbent resin. The suction force of the absorbent resin further provides a guiding force for the percolation direction of the filtrate.

Images