Stirring and filtering device and fecal fungus separation system

Abstract

The utility model discloses a stirring and filtering device and a fecal fungus separation system, the stirring and filtering device comprises a tank body and a tank cover detachably connected with the tank body, a filtering device and a stirring device are arranged in the tank body, the stirring device is used for stirring solid and liquid into turbid liquid and giving centrifugal force to the turbid liquid, and the filtering device is used for filtering the turbid liquid. The filtering device is arranged in the direction pointed by the centrifugal force; the filtering device divides the internal space of the tank body into a stirring area and a liquid storage area, the area formed between the filtering device and the wall of the tank body is the liquid storage area, and the stirring device is arranged in the stirring area; a liquid outlet area is further arranged in the tank body, the liquid outlet area is communicated with the liquid storage area, the liquid outlet area at least has a lowest point and a highest point, a liquid outlet is formed in the lowest point, a liquid return opening is formed in the highest point, and the liquid return opening and the liquid outlet are communicated through liquid flow in the tank body. The utility model further discloses a coprophilous fungus separation system which adopts the stirring and filtering device.

Description

Technical Field

[0001] The utility model relates to the field of fecal bacteria separation, in particular to a stirring and filtering device and a fecal bacteria separation system. Background Art

[0002] There are a large number of microorganisms living in the human intestine. These microorganisms not only help digest food, but also serve as an effective barrier for the human body to resist the invasion of external pathogens. They play a vital role in the human body's nutrition, metabolism and immunity. However, in order for the various microorganisms in the human intestine to function normally, they need to be in relative balance, but this relative balance is very fragile, which makes the balance of intestinal microorganisms in the human body very easy to be destroyed, which in turn causes abdominal pain, diarrhea and even diseases in the human body. How to quickly and effectively restore the imbalanced intestinal flora has not been well solved for many years.

[0003] Fecal bacteria account for about 1 / 3 of the dry weight of human feces, and most of them are normal flora. Therefore, the method of using fecal microbiota transplantation to quickly restore the imbalanced intestinal flora has entered the field of vision of researchers. The prerequisite for fecal microbiota transplantation is the effective separation of fecal microbiota.

[0004] Existing devices used for fecal bacteria separation include a stirring and filtering device disclosed in a patent with publication number CN216170222U, which includes: an outer barrel, a barrel cover, and an inner barrel. The inner barrel is placed inside the outer barrel, and the barrel cover is installed at the top opening of the outer barrel. A stirring and filtering area is formed inside the inner barrel, and a filtrate storage area is formed between the inner barrel and the outer barrel. The solid-liquid mixture to be separated enters the stirring and filtering area. After stirring, the suspension enters the filtrate storage area through filtration, and large particles of solid are retained in the stirring and filtering area.

[0005] The stirring and filtering device disclosed in the above patent is to stir the feces and the diluent into a suspension before filtering. This filtering method is bound to use the bottom of the inner cylinder for filtering and will inevitably cause solids to accumulate at the bottom of the inner cylinder. Long-term use will affect the filtering function of the bottom and will also have a negative impact on the stirring. Utility Model Content

[0006] In order to solve the problems existing in the prior art, the utility model discloses a stirring and filtering device and a feces and bacteria separation system.

[0007] A stirring and filtering device, comprising a tank body and a tank cover detachably connected to the tank body, wherein a filtering device and a stirring device are arranged inside the tank body, wherein the stirring device is used to stir solids and liquids into a suspension and impart centrifugal force to the suspension, and wherein the filtering device is arranged in the direction in which the centrifugal force points;

[0008] The filtering device divides the internal space of the tank into a stirring zone and a liquid storage zone, the area formed between the filtering device and the tank wall is the liquid storage zone, and the stirring device is arranged in the stirring zone;

[0009] The tank body is also provided with a liquid outlet area, which is connected to the liquid storage area, and the liquid outlet area has at least one lowest point and one highest point, the lowest point is provided with a liquid outlet, and the highest point is provided with a liquid return port, and the liquid return port and the liquid outlet are connected inside the tank body through liquid flow.

[0010] Specifically, the stirring of the stirring device will give centrifugal force to the suspension, and the filtering device is arranged in the direction of the centrifugal force. Therefore, under the action of centrifugal force, the suspension will move toward the filtering device. Under the filtering action of the filtering device, the filtrate containing fecal bacteria and small particulate matter will enter the liquid storage area, and the liquid storage area is connected to the liquid outlet area, and a liquid outlet is provided at the lowest point of the liquid outlet area. Therefore, the filtrate containing fecal bacteria and small particulate matter will flow out from the liquid outlet and be treated. The treated filtrate will return to the device through the liquid return port. The treated filtrate will flow into the device from the liquid return port and then flow out through the liquid outlet. The filtrate flowing back into the device will also enter the stirring area and be stirred again by the stirring device, and then filtered again. This cycle is repeated to achieve the collection of fecal bacteria.

[0011] Preferably, one side of the liquid outlet area is higher than the other side, and the lower side of the liquid outlet area is provided with a liquid outlet, and the higher side is provided with a liquid return port.

[0012] Specifically, under this structure, the distance between the liquid outlet and the liquid return port is the farthest, and only one liquid outlet and one liquid return port are required to ensure that the flow path of the filtrate flowing in from the liquid return port and out of the liquid outlet passes through the entire liquid outlet area.

[0013] Preferably, a liquid storage area is formed between the filter device and the side wall of the tank body, and there is no gap between one end of the filter device and the bottom of the tank body; the liquid outlet area is a groove and / or step arranged at the bottom of the tank body, and the bottom wall and / or top wall of the liquid outlet area is at least a part of the bottom wall of the liquid storage area.

[0014] Specifically, under this structure, the liquid outlet area is arranged directly below the liquid storage area, and fecal bacteria and small particulate matter will settle to the liquid outlet area by themselves, which is more conducive to the fecal bacteria being carried out of the stirring and filtering device by the filtrate through the liquid outlet.

[0015] Preferably, the filtering device is a filter membrane or a filter screen, and a first connecting structure and a second connecting structure are respectively provided at both ends of the filter membrane or the filter screen, and the first connecting structure and the second connecting structure are used to maintain the stability of the position of the filter membrane or the filter screen in the tank body.

[0016] Specifically, since the suspension has a certain initial velocity when it contacts the filter membrane or filter screen, if the first connecting structure and the second connecting structure are not provided to stabilize the position of the filter membrane or filter screen, the filter membrane or filter screen will stick to the side wall of the tank under the impact of the filtrate, thereby causing the volume of the liquid storage area to be too small or even non-existent, ultimately resulting in the filter membrane or filter screen being unable to effectively filter the suspension. Therefore, it is necessary to provide the first connecting structure and the second connecting structure to stabilize the position of the filter membrane or filter screen.

[0017] Preferably, the first connection structure is used to fix the filter membrane to the bottom of the tank body, and the first connection structure includes a first groove arranged at the bottom of the tank body, and the first groove is tightly matched with the filter membrane.

[0018] Preferably, the second connection structure is used to fix the filter membrane to the side wall of the tank body / the inner wall of the tank cover, and the second connection structure includes a sealing ring and a second groove provided on the side wall of the tank body / the inner wall of the tank cover, one side of the sealing ring is connected to the filter membrane, and the other side is recessed in the second groove.

[0019] Preferably, the tank cover is provided with a liquid injection port, and the liquid enters the tank body through the liquid injection port.

[0020] Specifically, since the tank cover is provided with a liquid injection port, there is no need to open the cover when adding diluent into the tank body (for mixing with feces and stirring to form a suspension), so the environment inside the tank body can be kept unchanged. At the same time, since the diluent will not splash out of the tank body, it is conducive to maintaining a clean and tidy operating environment.

[0021] Preferably, the tank cover is also provided with an air inlet and an air outlet, the air inlet is used to inject required gas into the tank body to form a required environment, and the air outlet is used to discharge waste gas in the tank body.

[0022] Specifically, most fecal bacteria are anaerobic bacteria. In order to maintain their activity, it is necessary to maintain an anaerobic environment inside the stirring and filtering device. An air inlet and an air outlet structure are set on the tank cover, so that N2 enters the stirring and filtering device from the air inlet, and the gas in the stirring and filtering device is discharged from the air outlet, thereby realizing the replacement of the gas inside the stirring and filtering device.

[0023] Of course, depending on the type of fecal bacteria that need to be maintained active, it is not always necessary to maintain an anaerobic environment in the stirring and filtering device. The required gas can be injected into the tank to form the required environment according to actual needs.

[0024] Preferably, the filtering device is provided with a few interfering flow plates.

[0025] Specifically, when the stirring device is stirring the suspension, lift will be generated, and the lift will cause part of the suspension to move toward the tank cover, which will have a negative impact on the filtration. The structure of the spoiler can effectively prevent the suspension from moving toward the tank cover on the one hand, and on the other hand, the spoiler can cooperate with the stirring device to stir the suspension more fully.

[0026] A feces bacteria separation system, using the stirring and filtering device as described above, further comprising a liquid bacteria separation device, wherein the liquid outlet and the liquid return port are connected outside the tank body through the liquid bacteria separation device;

[0027] The liquid-bacteria separation device is also provided with an exhaust port, the tank cover is provided with an air collecting port, and the exhaust port is communicated with the air collecting port.

[0028] Specifically, the filtrate flowing out from the liquid outlet contains fecal bacteria and small particulate matter, so it is necessary to set up a liquid bacteria separation device to separate the fecal bacteria from the filtrate, and the treated filtrate is then returned to the stirring and filtering device for circulation;

[0029] At the same time, waste gas will also be generated in the liquid-bacteria separation device. After being discharged through the exhaust port, the waste gas enters the tank body through the gas collecting port. The waste gas in the tank body is then discharged through the gas outlet and then subjected to waste gas treatment.

[0030] Preferably, the liquid-bacteria separation device comprises a peristaltic pump. When the peristaltic pump is started, the liquid-bacteria separation device is connected to the liquid outlet and the liquid return port. When the peristaltic pump is not started, the liquid-bacteria separation device is not connected to the liquid outlet and the liquid return port.

[0031] Specifically, when the peristaltic pump is started, the filtrate containing fecal bacteria can flow out from the liquid outlet, and the treated filtrate can flow back into the stirring and filtration device through the liquid return port; but when the peristaltic pump is turned off, the filtrate containing fecal bacteria cannot flow out from the liquid outlet, and the treated filtrate cannot flow back into the stirring and filtration device through the liquid return port.

[0032] Compared with the prior art, the utility model is beneficial in that:

[0033] 1. The structure of filtering the suspension by the centrifugal force generated by the stirring device when the suspension is stirred can effectively solve the problem of particle accumulation caused by gravity filtration, and does not require an additional power mechanism for applying centrifugal force. It has a simple structure and strong practicality.

[0034] 2. The liquid outlet area is set as a structure with a height difference, and the liquid outlet is set at the lowest point and the liquid return outlet is set at the highest point, so that the liquid always flows from the liquid return outlet to the liquid outlet, that is, the path between the liquid outlet and the liquid return outlet will be repeatedly passed by the liquid, and particulate matter is difficult to accumulate. In addition, the circulation formed between the liquid return outlet and the liquid outlet realizes stirring, filtering, and fecal bacteria collection at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a three-dimensional schematic diagram of the stirring and filtering device disclosed in the utility model;

[0036] Figure 2 It is an explosion diagram of the stirring and filtering device disclosed in the utility model;

[0037] Figure 3 A full cross-sectional schematic diagram of the stirring and filtering device disclosed in the utility model;

[0038] Figure 4 Another full cross-sectional schematic diagram of the stirring and filtering device disclosed in the utility model;

[0039] Figure 5 A schematic diagram of a fecal bacteria separation system disclosed in the utility model. DETAILED DESCRIPTION

[0040] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0041] like Figure 1-4 As shown, a stirring and filtering device comprises a tank body 10 and a tank cover 20 detachably connected to the tank body 10, a filtering device 30 and a stirring device 40 are arranged inside the tank body 10, the stirring device 40 is used to stir solids and liquids into a suspension and give centrifugal force to the suspension, and the filtering device 30 is arranged in the direction of the centrifugal force;

[0042] The filtering device 30 divides the internal space of the tank into a stirring area 11 and a liquid storage area 12. The area formed between the filtering device 30 and the wall of the tank 10 is the liquid storage area 12. The stirring device 40 is arranged in the stirring area 11.

[0043] A liquid outlet area 13 is also provided in the tank body 10, and the liquid outlet area 13 is connected to the liquid storage area 12, and the liquid outlet area 13 has at least one lowest point and one highest point, a liquid outlet 51 is provided at the lowest point, and a liquid return port 52 is provided at the highest point, and the liquid return port 52 and the liquid outlet 51 are connected inside the tank body by liquid flow.

[0044] The stirring of the stirring device 40 will give centrifugal force to the suspension, and the filtering device 30 is arranged in the direction of the centrifugal force. Therefore, under the action of centrifugal force, the suspension will move toward the filtering device 30. Under the filtering action of the filtering device 30, the filtrate containing fecal bacteria and small particulate matter will enter the liquid storage area 12, and the liquid storage area 12 is connected to the liquid outlet area 13, and the lowest point of the liquid outlet area 13 is provided with a liquid outlet 51. Therefore, the filtrate containing fecal bacteria and small particulate matter will flow out from the liquid outlet 51 and be treated. The treated filtrate will return to the device through the liquid return port 52. The treated filtrate will flow into the device from the liquid return port 52 and then flow out through the liquid outlet 51. The filtrate flowing back into the device will also enter the stirring area 11 and be stirred again by the stirring device 40, and then filtered again. The cycle is repeated to achieve the collection of fecal bacteria.

[0045] One side of the liquid outlet area 13 is higher than the other side. The lower side of the liquid outlet area 13 is provided with a liquid outlet 51, and the higher side is provided with a liquid return port 52.

[0046] In this structure, the distance between the liquid outlet 51 and the liquid return port 52 is the farthest, and only one liquid outlet 51 and one liquid return port 52 need to be provided to ensure that the flow path of the filtrate flowing in from the liquid return port 52 and out of the liquid outlet 51 passes through the entire liquid outlet area 13.

[0047] A liquid storage area 12 is formed between the filter device 30 and the side wall of the tank body 10, and there is no gap between one end of the filter device 30 and the bottom of the tank body 10; the liquid outlet area 13 is a groove and / or step arranged at the bottom of the tank body 10, and the bottom wall and / or top wall of the liquid outlet area 13 is at least a part of the bottom wall of the liquid storage area 12.

[0048] In this structure, the liquid outlet area 13 is arranged directly below the liquid storage area 12, and fecal bacteria and small particulate matter will settle in the liquid outlet area 13 by themselves, which is more conducive to the fecal bacteria being carried out of the stirring and filtering device by the filtrate through the liquid outlet 13.

[0049] The filter device 30 is a filter membrane or a filter screen, and a first connecting structure and a second connecting structure are respectively provided at both ends of the filter membrane or the filter screen, and the first connecting structure and the second connecting structure are used to maintain the stability of the position of the filter membrane or the filter screen in the tank body.

[0050] Since the suspension has a certain initial velocity when it contacts the filter membrane or filter screen, if the first connecting structure and the second connecting structure are not provided to stabilize the position of the filter membrane or filter screen, the filter membrane or filter screen will stick to the side wall of the tank body 10 under the impact of the filtrate, thereby causing the volume of the liquid storage area 12 to be too small or even non-existent, and ultimately causing the filter membrane or filter screen to be unable to effectively filter the suspension. Therefore, it is necessary to provide the first connecting structure and the second connecting structure to stabilize the position of the filter membrane or filter screen.

[0051] The first connection structure is used to fix the filter membrane to the bottom of the tank body 10. The first connection structure includes a first groove 61 provided at the bottom of the tank body 10. The first groove 61 is tightly matched with the filter membrane.

[0052] The second connection structure is used to fix the filter membrane to the side wall of the tank body 10 / the inner wall of the tank cover 20. The second connection structure includes a sealing ring 72 and a second groove 71 provided on the inner wall of the side wall of the tank body 10 / the tank cover 20. One side of the sealing ring 72 is connected to the filter membrane, and the other side is recessed in the second groove 71.

[0053] The tank cover 20 is provided with a liquid injection port 21 , through which liquid enters the tank body 10 .

[0054] Since the tank cover 20 is provided with a liquid injection port 21, there is no need to open the cover when adding diluent (for mixing with feces and stirring to form a suspension) into the tank body 10, so the environment inside the tank body 10 can be kept unchanged. At the same time, since the diluent will not splash out of the tank body 10, it is beneficial to maintain a clean and tidy operating environment.

[0055] The tank cover 20 is also provided with an air inlet 22 and an air outlet 23 . The air inlet 22 is used to inject required gas into the tank body 10 to form a required environment, and the air outlet 23 is used to discharge waste gas in the tank body 10 .

[0056] Most fecal bacteria are anaerobic bacteria. In order to maintain their activity, it is necessary to maintain an anaerobic environment inside the stirring and filtering device. An air inlet 22 and an air outlet 23 are provided on the tank cover 20, so that N2 enters the stirring and filtering device from the air inlet 22, and the gas in the stirring and filtering device is discharged from the air outlet 23, thereby achieving the replacement of the gas inside the stirring and filtering device.

[0057] Of course, depending on the type of fecal bacteria that need to be maintained active, it is not always necessary to maintain an anaerobic environment in the stirring and filtering device. The required gas can be injected into the tank body 10 to form the required environment according to actual needs.

[0058] The filter device 30 is provided with a flow-interference plate 31 .

[0059] When the stirring device 40 stirs the suspension, lift will be generated, and the lift will cause part of the suspension to move toward the tank cover 20, which will have a negative impact on the filtration. The structure of the spoiler 31 can effectively prevent the suspension from moving toward the tank cover 20 on the one hand, and on the other hand, the spoiler 31 can cooperate with the stirring device 40 to stir the suspension more fully.

[0060] like Figure 5 As shown, a feces bacteria separation system adopts the stirring and filtering device as above, and also includes a liquid bacteria separation device 80, wherein the liquid outlet 51 and the liquid return port 52 are connected outside the tank body through the liquid bacteria separation device 80;

[0061] The liquid-bacteria separation device 80 is further provided with an exhaust port 82 , and the tank cover 20 is provided with an air collecting port 24 , and the exhaust port 82 is communicated with the air collecting port 24 .

[0062] The filtrate flowing out through the liquid outlet 51 contains fecal bacteria and small particulate matter, so it is necessary to set up a liquid bacteria separation device 80 to perform fecal bacteria separation treatment on the filtrate, and the treated filtrate is then returned to the stirring and filtering device for circulation;

[0063] Meanwhile, waste gas is also generated in the liquid-bacteria separation device 80 . The waste gas is discharged through the exhaust port 82 and then enters the tank body 10 through the gas collecting port 24 . The waste gas in the tank body 10 is then discharged through the gas outlet 23 and then treated.

[0064] The liquid-bacteria separation device comprises a peristaltic pump 81 . When the peristaltic pump 81 is started, the liquid-bacteria separation device 80 is connected to the liquid outlet 51 and the liquid return port 52 . When the peristaltic pump 81 is not started, the liquid-bacteria separation device is not connected to the liquid outlet 51 and the liquid return port 52 .

[0065] That is, when the peristaltic pump 81 is started, the filtrate containing fecal bacteria can flow out from the liquid outlet 51, and the treated filtrate can flow back into the stirring and filtering device through the liquid return port 52; but when the peristaltic pump 81 is turned off, the filtrate containing fecal bacteria cannot flow out from the liquid outlet 51, and the treated filtrate cannot flow back into the stirring and filtering device through the liquid return port 52.

Claims

1. A stirring and filtering device, comprising a tank body and a tank cover detachably connected to the tank body, characterized in that: A filtering device and a stirring device are provided inside the tank body, wherein the stirring device is used to stir the solid and the liquid into a suspension and impart centrifugal force to the suspension, and the filtering device is arranged in the direction of the centrifugal force; The filtering device divides the internal space of the tank into a stirring zone and a liquid storage zone, the area formed between the filtering device and the tank wall is the liquid storage zone, and the stirring device is arranged in the stirring zone; The tank body is also provided with a liquid outlet area, which is connected to the liquid storage area, and the liquid outlet area has at least one lowest point and one highest point, the lowest point is provided with a liquid outlet, and the highest point is provided with a liquid return port, and the liquid return port and the liquid outlet are connected inside the tank body through liquid flow.

2. The stirring filtration device according to claim 1, characterized in that: One side of the liquid outlet area is higher than the other side, and a liquid outlet is arranged on the lower side of the liquid outlet area, and a liquid return port is arranged on the higher side.

3. The stirring filtration device according to claim 1, characterized in that: A liquid storage area is formed between the filter device and the side wall of the tank body, and there is no gap between one end of the filter device and the bottom of the tank body; the liquid outlet area is a groove and / or step arranged at the bottom of the tank body, and the bottom wall and / or top wall of the liquid outlet area is at least a part of the bottom wall of the liquid storage area.

4. The stirring filtration device according to claim 3, characterized in that: The filtering device is a filter membrane or a filter screen, and a first connecting structure and a second connecting structure are respectively provided at both ends of the filter membrane or the filter screen, and the first connecting structure and the second connecting structure are used to maintain the stability of the position of the filter membrane or the filter screen in the tank body.

5. The stirring filtration device according to claim 4, characterized in that: The first connection structure is used to fix the filter membrane to the bottom of the tank body. The first connection structure includes a first groove arranged at the bottom of the tank body. The first groove is tightly matched with the filter membrane.

6. The stirring filtration device according to claim 4, characterized in that: The second connection structure is used to fix the filter membrane to the side wall of the tank body / the inner wall of the tank cover. The second connection structure includes a sealing ring and a second groove provided on the side wall of the tank body / the inner wall of the tank cover. One side of the sealing ring is connected to the filter membrane and the other side is recessed in the second groove.

7. The stirring filtration device according to claim 1, characterized in that: The tank cover is provided with a liquid injection port, and the liquid enters the tank body through the liquid injection port; the tank cover is also provided with an air inlet and an air outlet, the air inlet is used to inject required gas into the tank body to form a required environment, and the air outlet is used to discharge waste gas in the tank body.

8. The stirring filtration device according to claim 1, characterized in that: The filtering device is provided with several interference flow plates.

9. A fecal bacteria separation system, characterized in that: The stirring and filtering device according to claim 1 further comprises a liquid-bacteria separation device, wherein the liquid outlet and the liquid return port are connected outside the tank body through the liquid-bacteria separation device; The liquid-bacteria separation device is also provided with an exhaust port, the tank cover is provided with an air collecting port, and the exhaust port is communicated with the air collecting port.

10. The feces bacteria separation system according to claim 9, characterized in that: The liquid-bacteria separation device comprises a peristaltic pump. When the peristaltic pump is started, the liquid-bacteria separation device is connected with a liquid outlet and a liquid return port. When the peristaltic pump is not started, the liquid-bacteria separation device is not connected with the liquid outlet and the liquid return port.

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