Feces sand removal system

Abstract

The excrement sand removal system comprises a pulp homogenizing tank, a feeding tank is arranged on one side of the pulp homogenizing tank, a hair removal box is further arranged on one side of the pulp homogenizing tank, a hair removal machine is arranged in the hair removal box, and a backflow pipe connected with the pulp homogenizing tank is installed at the bottom of the hair removal box; a sand removing machine is arranged on one side of the sand and stone separating hopper, the discharging end of the sand removing machine extends out of the sand and stone separating hopper, a manure and sand separating machine is further installed on the sand and stone separating hopper, a connecting pipe at the inlet end of the manure and sand separating machine extends into the slurry homogenizing pool, and the heavy discharging end of the manure and sand separating machine is located on the sand and stone separating hopper. The light discharging end of the excrement and sand separator extends into the feeding pool, and a water inlet pipe is further arranged on the sand and sand separating hopper. The system can reduce the water consumption of the livestock farm during excrement treatment, is high in treatment efficiency, good in treatment effect of sand, gravel, hair and the like, is smooth in operation, achieves resource utilization of livestock farm excrement, reasonably utilizes water sources, and reduces water source waste.

Description

Technical Field

[0001] This utility model relates to the field of livestock farm manure treatment technology, and in particular to a manure sand removal system. Background Technology

[0002] With improved processing levels in livestock farms, the resource utilization of livestock manure has become commonplace. After fermentation, the collected manure can be used as organic fertilizer, turning waste into treasure for businesses, reducing processing costs while increasing profits. Furthermore, fermented manure is a high-quality organic fertilizer. It contains abundant nutrients such as nitrogen, phosphorus, and potassium, elements crucial for plant growth. Proper application of manure can improve soil fertility, enhance soil structure, and promote crop growth and development.

[0003] Because the silt content in feces is high, it easily causes a large amount of sediment to settle at the bottom of the biogas digester, thereby reducing the capacity of the biogas digester and lowering the treatment efficiency. Therefore, sand removal treatment is carried out before entering the biogas digester. However, traditional sand removal treatment uses a lot of water, resulting in a high water content in the treated feces. This not only produces a large amount of biogas slurry but also further reduces the feces treatment efficiency. To address these issues, we propose a feces sand removal system. Utility Model Content

[0004] This application provides a manure sand removal system that solves the problem of high water consumption in manure treatment in livestock farms.

[0005] This application provides a manure sand removal system, including a slurry equalization tank, a feeding tank on one side of the slurry equalization tank, a descaling box on one side of the slurry equalization tank, a descaling machine inside the descaling box, and a return pipe connected to the slurry equalization tank installed at the bottom of the descaling box.

[0006] It also includes a sand and gravel separation hopper, a sand remover is provided on one side of the sand and gravel separation hopper, the discharge end of the sand remover extends outside the sand and gravel separation hopper, a manure and sand separator is also installed on the sand and gravel separation hopper, the inlet connecting pipe of the manure and sand separator extends into the slurry equalization tank, the heavy discharge end of the manure and sand separator is located on the sand and gravel separation hopper, the light discharge end of the manure and sand separator extends into the feed tank, and a water inlet pipe is also provided on the sand and gravel separation hopper;

[0007] It also includes a fermentation tank, the feeding tank is connected to the fermentation tank, and a corresponding discharge tank is provided on one side of the fermentation tank;

[0008] It also includes a first biogas slurry tank, the upper clear liquid of the fermentation tank flows into the first biogas slurry tank, and the biogas slurry in the first biogas slurry tank is sent to the homogenization tank;

[0009] It also includes a mud-water separation device, wherein a second biogas slurry tank is installed at the liquid discharge end of the mud-water separation device, a liquid fertilizer production workshop is installed at the second biogas slurry tank, and a solid fertilizer production workshop is set up at the solid discharge end of the mud-water separation device.

[0010] Preferably, the sand and gravel separation hopper is conical, and the sand remover is installed along the inclined side of the sand and gravel separation hopper.

[0011] Preferably, the sand remover is a screw conveyor.

[0012] Preferably, the inlet connecting pipe extends to the bottom of the homogenization tank.

[0013] Preferably, a feeding buffer tank is also provided between the feeding tank and the fermentation tank.

[0014] Preferably, the manure and sand separator is a hydrocyclone sand separator.

[0015] As can be seen from the above technical solution, this application provides a manure and wastewater removal system. In use, manure and wastewater from the livestock process are discharged into a mixing tank, and biogas slurry is added according to a certain ratio. If the biogas slurry is insufficient, other water can be added. The water-manure mixture in the mixing tank is mixed and stirred, and then pumped from the bottom to a manure-sand separator. The sand and gravel at the bottom of the manure-sand separator are discharged into a sand and gravel separation hopper. The sand and gravel are washed with water in the sand and gravel separation hopper to remove manure, and then discharged through a sand remover, piled up, and the washing water is sent to the mixing tank. The mixture is used as a mixing water. During the homogenization process, the lighter animal hair floats on the top layer and is overflowed into the hair removal box for hair removal. The light manure water discharged from the manure-sand separator is sent to the feeding tank. After the storage reaches the set value, it undergoes unified fermentation treatment, which can be used for biogas fermentation. During the fermentation process, the clear liquid on the top layer is sent to the first biogas slurry tank for homogenization. The fermented manure undergoes solid-liquid separation, with the liquid being made into liquid organic fertilizer and the solid being used as solid organic fertilizer.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. By setting up a slurry mixing tank, feces and water can be mixed, improving separation efficiency and facilitating subsequent separation and treatment;

[0018] 2. By setting up a hair removal box, the lightweight nature of hair can be utilized to remove the floating hair, which facilitates subsequent processing and improves the quality of organic fertilizer.

[0019] 3. By setting up a manure and sand separator, a sand and gravel separation hopper and a sand remover, the sand and gravel in the manure can be separated twice. The manure after the first separation is fermented, and the water after washing is used as homogenizing water, making reasonable use of water resources and reducing water waste.

[0020] 4. The manure is fermented, separated, and processed in fermentation tanks, liquid fertilizer production workshops, and solid fertilizer production workshops to prepare solid and liquid organic fertilizers.

[0021] In summary, this application can reduce the water consumption of farms when treating manure, has high treatment efficiency, good treatment effect on sand, gravel and hair, and smooth system operation, thus achieving the resource utilization of farm manure. Attached Figure Description

[0022] To more clearly illustrate the technical solution of this application, the accompanying drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a manure sand removal system proposed in this utility model;

[0024] In the diagram: 1. Equalization tank, 2. Feeding tank, 3. Dehairing box, 4. Dehairing machine, 5. Return pipe, 6. Sand remover, 7. Sand and gravel separation hopper, 8. Water inlet pipe, 9. Manure and sand separator, 10. First biogas slurry tank, 11. Feeding buffer tank, 12. Fermentation tank, 13. Discharge tank, 14. Liquid fertilizer production workshop, 15. Second biogas slurry tank, 16. Solid fertilizer production workshop, 17. Mud and water separation device. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0026] See Figure 1This application discloses a manure sand removal system for treating livestock manure, particularly chicken manure. During chicken farming, the manure often contains a high amount of sand and gravel, requiring pretreatment to remove the sand and gravel before fermentation. Currently, one ton of chicken manure requires three tons of water to effectively remove the sand and gravel. As the scale of farming increases, the amount of chicken manure to be treated also increases, and the original treatment method uses a large amount of water. Therefore, this application addresses this issue. Specifically, the system includes a homogenizing tank 1, with a feeding tank 2 on one side. It should be understood that both the homogenizing tank 1 and the feeding tank 2 are equipped with stirring structures. Stirring is required in both the homogenizing tank and the feeding tank 2 during material feeding. The homogenizing tank 1 also has... A defecation box 3 is provided, and the defecation box 3 and the homogenizing tank 1 are installed horizontally. The water in the homogenizing tank 1 flows into the defecation box 3 by overflow. Chicken manure contains a large number of chicken feathers, so the chicken manure needs to be defecation treated. During the homogenization process of the chicken manure entering the homogenizing tank 1, the feathers are relatively light and float to the top, flowing into the defecation box 3. A defecation machine 4 is provided in the defecation box 3. In this application, the defecation machine 4 is a chain plate conveyor. The chain plate of the defecation machine 4 carries the chicken feathers out of the defecation box 3 and discharges them. In order to ensure that the water in the homogenizing tank 1 continuously flows into the defecation box 3, a return pipe 5 connected to the homogenizing tank 1 is installed at the bottom of the defecation box 3. The water at the bottom of the defecation box 3 is continuously pumped into the homogenizing tank 1 through the return pipe 5, so that the water level in the defecation box 3 is lower than the water level in the homogenizing tank 1.

[0027] It also includes a sand and gravel separation hopper 7, which is used to further wash and separate the separated sand and gravel. Specifically, a sand remover 6 is installed on one side of the sand and gravel separation hopper 7. The sand and gravel separation hopper 7 is conical, and the sand remover 6 is installed along the inclined side of the sand and gravel separation hopper 7. In this application, the sand remover 6 is a screw conveyor. The sand remover 6 is located at the bottom of the sand and gravel separation hopper 7. The sand and gravel settle during the washing process. The discharge end of the sand remover 6 extends outside the sand and gravel separation hopper 7. The sand and gravel are carried out of the sand and gravel separation hopper 7 by the sand remover 6 and discharged. A manure and sand separator 9 is also installed on the sand and gravel separation hopper 7. The manure and sand separator 9 is a cyclone sand remover. The chicken manure that has been homogenized by the homogenizing tank 1 is washed and separated in the manure and sand separator 9. The first sand and gravel separation specifically utilizes the granular nature of sand and gravel to remove sand and gravel from chicken manure. The inlet connecting pipe of the manure-sand separator 9 extends into the homogenizing tank 1 and to the bottom of the homogenizing tank 1, allowing the chicken manure at the bottom of the homogenizing tank 1 to be extracted for processing, thus preventing sedimentation in the homogenizing tank 1. The heavy discharge end of the manure-sand separator 9 is located on the sand and gravel separation hopper 7. The chicken manure completes the first sand and gravel separation in the manure-sand separator 9. The separated sand and gravel enter the sand and gravel separation hopper 7 for a second washing and separation. The light discharge end of the manure-sand separator 9 extends into the feeding tank 2, awaiting fermentation treatment. In this application, the capacity of the homogenizing tank 1 and the feeding tank 2 is 300m³. After two washings, the sand and gravel in this application are free of pollution and can be directly processed. Due to the continuous water loss in the system, a water inlet pipe 8 is also installed on the sand and gravel separation hopper 7. Water is added through the water inlet pipe 8, which also serves the purpose of washing the sand and gravel, making the washing efficiency of the sand and gravel higher. In this application, the water consumption for one ton of chicken manure is less than one ton. The specific amount of water used is affected by the season and the dryness and wetness of the chicken manure. The water in the water inlet pipe 8 includes breeding wastewater, rainwater and self-use water, which greatly reduces the amount of washing water used.

[0028] It also includes a fermentation tank 12, and the feeding tank 2 is connected to the fermentation tank 12. In this application, the fermentation tank 12 is a biogas fermentation tank, and black film fermentation can be selected. The fermentation tank 12 and the fermentation technology refer to the prior art. The chicken manure after fermentation in the fermentation tank 12 is discharged and waits for treatment. Specifically, a corresponding discharge tank 13 is set on one side of the fermentation tank 12. After the chicken manure is fermented, it is buffered through the discharge tank 13 and then processed.

[0029] It also includes a first biogas slurry tank 10, which is used to collect the clear liquid in the fermentation tank 12. Specifically, the clear liquid on the upper layer of the fermentation tank 12 flows into the first biogas slurry tank 10. The water in the fermentation tank 12 is used as chicken manure mixing water, which can improve fermentation efficiency, reduce system water consumption, and further reduce the liquid content in the solid-liquid separation of chicken manure after fermentation. When chicken manure is added to the homogenizing tank 1, the biogas slurry in the first biogas slurry tank 10 is sent to the homogenizing tank 1.

[0030] It also includes a mud-water separation device 17, a second biogas slurry tank 15 is installed at the liquid discharge end of the mud-water separation device 17, a liquid fertilizer production workshop 14 is installed at the second biogas slurry tank 15, which is used to produce liquid fertilizer from the separated liquid, and a solid fertilizer production workshop 16 is set at the solid discharge end of the mud-water separation device 17, which uses the separated solid as solid fertilizer.

[0031] In this application, a feeding buffer tank 11 is also provided between the feeding tank 2 and the fermentation tank 12. Before fermentation, the feces are sent to the feeding buffer tank 11 according to a certain amount, and the feces are transported to each fermentation tank 12 for fermentation through the feeding buffer tank 11.

[0032] As can be seen from the above technical solution, in use, the manure and wastewater from the breeding process are discharged into the equalization tank 1, and biogas slurry is added according to the ratio. When the biogas slurry is insufficient, other water can be added. The water-manure mixture in the equalization tank 1 is mixed and stirred, and then pumped from the bottom to the manure-sand separator 9. The sand and gravel at the bottom of the manure-sand separator 9 are discharged to the sand and gravel separation hopper 7. The sand and gravel are washed with water in the sand and gravel separation hopper 7 to remove manure, and then discharged through the sand removal machine 6. The sand and gravel are piled up and the washing water is sent to the equalization tank 1 as mixing water. During the homogenization process, the lighter animal hair floats on the top layer and overflows into the hair removal box 3 for hair removal. The light manure water discharged from the manure sand separator 9 is sent to the feeding tank 2. After the storage reaches the set value, it undergoes unified fermentation treatment, which can be used for biogas fermentation. During the fermentation process, the clear liquid on the top layer is sent to the first biogas slurry tank 10 for homogenization in the homogenization tank 1. The fermented manure undergoes solid-liquid separation, with the liquid being made into liquid organic fertilizer and the solid being used as solid organic fertilizer.

[0033] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of this application is indicated by the claims.

[0034] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this application described above do not constitute a limitation on the scope of protection of this application.

Claims

1. A faecal degritting system comprising a homogenising tank (1), characterised in that: One side of the homogenate tank (1) is provided with a feed tank (2), and one side of the homogenate tank (1) is also provided with a hair removal box (3), the hair removal box (3) is provided with a hair removal machine (4), and the bottom of the hair removal box (3) is provided with a return pipe (5) connected with the homogenate tank (1); It also includes a sand and stone separation hopper (7), one side of the sand and stone separation hopper (7) is provided with a sand removal machine (6), the discharge end of the sand removal machine (6) extends out of the sand and stone separation hopper (7), and a fecal sand separation machine (9) is also installed on the sand and stone separation hopper (7), the inlet connecting pipe of the fecal sand separation machine (9) extends into the homogenate tank (1), the heavy material discharge end of the fecal sand separation machine (9) is located on the sand and stone separation hopper (7), and the light material discharge end of the fecal sand separation machine (9) extends into the feed tank (2), and the sand and stone separation hopper (7) is also provided with a water inlet pipe (8); It also includes a fermentation tank (12), the feed tank (2) is communicated with the fermentation tank (12), and one side of the fermentation tank (12) is provided with a corresponding discharge tank (13); It also includes a first biogas slurry tank (10), the upper layer clear liquid of the fermentation tank (12) flows into the first biogas slurry tank (10), and the biogas slurry in the first biogas slurry tank (10) is sent into the homogenate tank (1); It also includes a mud and water separation device (17), a second biogas slurry tank (15) is installed at the liquid discharge end of the mud and water separation device (17), a liquid fertilizer production workshop (14) is installed at the second biogas slurry tank (15), and a solid fertilizer production workshop (16) is arranged at the solid discharge end of the mud and water separation device (17).

2. A faecal matter de-sanding system according to claim 1, wherein, The sand and stone separation hopper (7) is conical, and the sand removal machine (6) is installed along the inclined edge of the sand and stone separation hopper (7).

3. A system for removing sand from fecal material according to claim 1, wherein The sand removal machine (6) is a spiral conveyor.

4. A system for removing sand from fecal material according to claim 1, wherein The inlet connecting pipe extends to the bottom of the homogenate tank (1).

5. A system according to claim 1, wherein, A feed buffer tank (11) is also arranged between the feed tank (2) and the fermentation tank (12).

6. A system according to claim 1, wherein, The fecal sand separation machine (9) is a cyclone sand removal machine.

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