High-efficiency solid-liquid separation device for feces in dairy cattle farm

Abstract

The utility model discloses an efficient solid-liquid separation device for feces in a dairy cattle farm, and particularly relates to the technical field of feces treatment. The solid-liquid efficient separation device for the feces in the dairy cattle farm comprises a first-stage separation device and a second-stage separation device, the first-stage separation device comprises a collecting tank, a rotating shaft is rotationally installed in the collecting tank, a stirring disc is fixedly installed at the bottom end of the rotating shaft, a first motor is fixedly installed at the top of the collecting tank, and the first motor and the rotating shaft are fixed. According to the solid-liquid high-efficiency separation device for the feces in the dairy farm, provided by the utility model, through the combination of primary separation and secondary separation, solid and liquid in the feces can be effectively separated. In the first-stage separation, heavy gravels are deposited at the bottom of a collecting tank under the action of centrifugal force, and the content of the gravels in excrement in the middle is remarkably reduced; and in the second-stage separation, the liquid is further separated from the fine gravels through the conveying of the auger, so that the separation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of manure treatment, in particular to a high-efficiency solid-liquid separation device for manure in a dairy farm. Background Art

[0002] With the rapid development of modern animal husbandry, dairy farming has become a vital component of the agricultural economy. However, the large amount of manure and waste generated during the production process on dairy farms, if not effectively treated, not only causes serious environmental pollution but also wastes valuable resources. Therefore, manure and waste treatment has become a pressing issue in the dairy farming industry.

[0003] At present, the common way to use cow dung is to use it as bedding or as raw material inside a biogas tank. Regardless of the purpose of the cow dung, the cow dung needs to be separated into solid and liquid. The liquid can be reused or used as fertilizer. When cow dung is used as raw material for a biogas tank, since there is a certain amount of sand in the collection process of the cow dung, when using a solid-liquid separation device, some of the sand will settle and block the leakage holes of the solid-liquid separation device, resulting in a decrease in subsequent separation efficiency. More sand will settle in the biogas tank, which can easily cause blockage of the biogas tank pipeline.

[0004] Therefore, it is necessary to provide a high-efficiency solid-liquid separation device for dairy farm manure to solve the above technical problems. Utility Model Content

[0005] In view of the above situation, in order to overcome the defects of the existing technology, the utility model provides a high-efficiency solid-liquid separation device for dairy farm manure, which can effectively separate the solids and liquids in manure through the combination of primary separation and secondary separation.

[0006] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0007] The invention relates to a high-efficiency solid-liquid separation device for manure in a dairy farm, comprising: a primary separation and a secondary separation, wherein the primary separation comprises a collecting tank, a rotating shaft is rotatably installed inside the collecting tank, a stirring disk is fixedly installed at the bottom end of the rotating shaft, a first motor is fixedly installed on the top of the collecting tank, the first motor is fixed to the rotating shaft, a feed pipe is installed on the top of the collecting tank, a plurality of suction pipes distributed in an annular array are provided in the collecting tank, the suction pipes are between the inside of the collecting tank and the middle of the rotating shaft, the plurality of suction pipes all extend to the top of the collecting tank and are fixedly installed with the same annular pipe, a first infusion pipe is fixedly installed on one side of the annular pipe, a first infusion pipe is installed on the first infusion pipe, and a second infusion pipe is installed on the first infusion pump, the secondary separation comprises an inclined mounting cylinder, the second infusion pipe is connected to the mounting cylinder, an auger is rotatably installed inside the mounting cylinder, the auger consists of a transmission shaft and a threaded conveying blade, a second motor is installed at one end of the auger, a plurality of leakage holes are opened at the bottom of the mounting cylinder, and a sewage pipe is installed on the mounting cylinder.

[0008] Preferably, a collecting trough is fixedly installed at the bottom of the mounting cylinder, and the efficient solid-liquid separation device for manure in a dairy farm also includes a collecting box, a drainage pipe is installed on the collecting trough, and the drainage pipe extends to the interior of the collecting box, a third infusion pipe is installed on the first infusion pipe, a second infusion pump is installed on the third infusion pipe, a fourth infusion pipe is installed on the second infusion pump, and the fourth infusion pipe extends to the interior of the collecting box, and solenoid valves are installed on the first infusion pipe, the third infusion pipe and the fourth infusion pipe.

[0009] Preferably, a baffle is obliquely installed at the lower part of the collection box, one side of the baffle is not in contact with the collection box, forming a connection port, and the collection box is divided into two layers under the action of the baffle.

[0010] Preferably, the second delivery pump is also equipped with a clean water delivery pipe, which is also equipped with a solenoid valve. The solenoid valve on the clean water delivery pipe is only in the open state when cleaning the collection tank and the inside of the installation cylinder, and is in the closed state at other time periods.

[0011] Preferably, the pipette is provided with a plurality of pipetting holes.

[0012] Preferably, the bottom of the collecting tank is conical, and a discharge pipe is provided at the bottom.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) Through the combination of primary separation and secondary separation, the solids and liquids in the manure can be effectively separated. The primary separation uses centrifugal force to make the heavier gravel settle at the bottom of the collection tank, while the gravel content in the middle of the manure is significantly reduced; the secondary separation is further separated from the liquid and fine gravel through the auger, thereby improving the separation efficiency;

[0015] (2) This device can transport the liquid separated from the secondary separation to the collection tank to dilute the manure and sewage, so that the waste liquid can be reasonably utilized;

[0016] (3) This device can clean the collection tank and the installation cylinder, improve the convenience of maintenance, and ensure the long-term stable operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the efficient solid-liquid separation device for dairy farm manure provided by the utility model;

[0018] Figure 2 This is a partial structural diagram of the efficient solid-liquid separation device for dairy farm manure provided by the utility model;

[0019] Figure 3 for Figure 1 The schematic cross-sectional structure diagram of a high-efficiency solid-liquid separation device for manure in a dairy farm is shown;

[0020] Figure 4 for Figure 3 Schematic diagram of the structure of secondary separation;

[0021] Figure 5 This is a schematic structural diagram of a liquid suction pipe in a high-efficiency solid-liquid separation device for manure in a dairy farm provided by the utility model.

[0022] Among them, the names corresponding to the figure marks are: 1-collecting tank, 2-rotating shaft, 3-stirring plate, 4-first motor, 5-feeding pipe, 6-suction tube, 7-annular tube, 8-annular tube, 9-first infusion pump, 10-first infusion pump, 11-installing cylinder, 12-auger, 13-second motor, 14-drain pipe, 15-leakage hole, 16-collecting trough, 17-collecting box, 18-collecting box, 19-collecting box, 20-collecting box, 21-fourth infusion tube, 22-baffle, 23-delivery pipe, 24-suction hole, 25-solenoid valve. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments. The present invention includes but is not limited to the following embodiments.

[0024] Example 1

[0025] like Figure 1-5As shown, the present invention provides a high-efficiency solid-liquid separation device for manure in a dairy farm, including: primary separation and secondary separation. The primary separation includes a collecting tank 1, a rotating shaft 2 is rotatably installed inside the collecting tank 1, a stirring disk 3 is fixedly installed at the bottom end of the rotating shaft 2, and a first motor 4 is fixedly installed on the top of the collecting tank 1. The first motor 4 is fixed to the rotating shaft 2. When the motor 2 is started, the rotating shaft 2 drives the stirring disk 3 to rotate, so that the manure in the collecting tank 1 rotates, and the heavier and larger gravel in the manure moves to the inside of the collecting tank 1 under the action of centrifugal force, so that the manure in the middle part is The gravel content is greatly reduced. A feed pipe 5 is installed on the top of the collection tank 1. Cow dung (cow dung diluted with cow urine and water) enters the collection tank 1 through the feed pipe 5. The collection tank 1 is provided with a plurality of suction pipes 6 distributed in a ring array. The suction pipes 6 are between the inside of the collection tank 1 and the middle of the rotating shaft 2. The plurality of suction pipes 6 extend to the top of the collection tank 1 and are fixedly installed with the same ring pipe 7. A first infusion pipe 8 is fixedly installed on one side of the ring pipe 7. A first infusion pump 9 is installed on the first infusion pipe 8. A second infusion pipe 10 is installed on the first infusion pump 9. The secondary separation includes an inclined mounting cylinder 11, and the second infusion pipe 10 is connected to the mounting cylinder 11. When the first infusion pump 9 is started, the feces in the collection tank 1 are sucked into the suction pipe 6, and then the feces are transported to the mounting cylinder 11 through the annular pipe 7, the first infusion pipe 8 and the second infusion pipe 10. The gravel content in this part of the feces is less and smaller. The mounting cylinder 11 is internally rotatably installed with an auger 12. The auger 12 consists of a transmission shaft and a threaded conveying blade. A second motor 13 is installed at one end of the auger 12. After the second motor 13 is started, it will drive the auger 12 to rotate. After the auger 12 rotates, the manure and sewage inside the installation cylinder 11 are transported along the extension direction of the installation cylinder 11. A plurality of leakage holes 15 are provided at the bottom of the installation cylinder 11. During the process of the auger transporting manure and sewage, the liquid and a part of the fine sand in the manure and sewage will flow out through the leakage holes 15, thereby realizing solid-liquid separation. Since the gravel in the manure and sewage inside the installation cylinder 11 is relatively small and small, the leakage holes 15 will not be easily blocked, thereby maintaining a high efficiency of solid-liquid separation. A sewage pipe 14 is installed on the installation cylinder 11, and the solids transported by the auger can directly enter the biogas tank through the sewage pipe 14.

[0026] Example 2

[0027] like Figure 2-3As shown, a collecting tank 16 is fixedly installed at the bottom of the mounting cylinder 11, and the liquid separated from the inside of the mounting cylinder 11 enters the collecting tank 16 through the leakage hole 15. The high-efficiency solid-liquid separation device for manure in dairy farms also includes a collecting box 17, and a drainage pipe 18 is installed on the collecting tank 16. The drainage pipe 18 extends to the inside of the collecting box 17. The liquid collected by the collecting tank 16 will enter the inside of the collecting box 17 through the drainage pipe 18. A third infusion pipe 19 is installed on the first infusion pipe 8. A second infusion pump 20 is installed, and a fourth infusion tube 21 is installed on the second infusion pump 20. The fourth infusion tube 21 extends to the inside of the collection box 17. When the second infusion pump 20 is started, the liquid inside the collection box 17 will enter the first infusion tube 8 through the fourth infusion tube 21 and the third infusion tube 19, and then the liquid will enter the annular tube 7 and be sprayed out from the multiple suction tubes 6 for dilution. The first infusion tube 8, the third infusion tube 19 and the fourth infusion tube 21 are all equipped with electromagnetic valves 25 (the specific installation of the electromagnetic valve is as shown in FIG. Figure 2 As shown), when the feces and sewage in the collection tank 1 are transported to the inside of the installation cylinder 11, the solenoid valves 25 on the third infusion tube 19 and the fourth infusion tube 21 are in a closed state, and the solenoid valve 25 on the second infusion tube 10 is in an open state. At this time, under the action of the first infusion pump 9, the feces and sewage in the collection tank 1 are transported to the installation cylinder 11. When it is necessary to transport the liquid in the collection box 17 to the collection tank 1 to dilute the feces and sewage, the second delivery pump 20 is started. At the same time, the solenoid valves 25 on the third infusion tube 19 and the fourth infusion tube 21 are in an open state, and the solenoid valve 25 on the second infusion tube 10 is in a closed state. At this time, the liquid in the collection box 17 will be transported to the collection tank 1.

[0028] Furthermore, a baffle 22 is installed obliquely at the lower part of the collecting box 17, and one side of the baffle 22 does not contact the collecting box 17, forming a connecting port. The collecting box 17 is divided into two layers under the action of the baffle 22. When the drainage pipe 18 transports the liquid in the collecting tank 16 to the collecting box 17, the sediment (including some gravel) in the liquid is settled in the collecting box 17, and these sediments are preferentially settled below the baffle 22. When the fourth infusion pipe 21 absorbs the liquid in the collecting box 17, the baffle 22 can block the sediment, thereby preventing more sediment from being transported to the collection tank 1 again.

[0029] Furthermore, a clean water delivery pipe 23 is also installed on the second delivery pump 20, and the clean water delivery pipe 23 is also installed with a solenoid valve 25. The solenoid valve 25 on the clean water delivery pipe 23 is in an open state only when the inside of the collection tank 1 and the installation cylinder 11 are cleaned, and is in a closed state in other time periods. When the inside of the collection tank 1 and the installation cylinder 11 are cleaned, the clean water delivery pipe 23 is connected to the water tank, so that the clean water delivery pipe 23, the third delivery pipe 19 and the solenoid valve 25 on the first infusion pipe 8 are in an open state, and the solenoid valve 25 on the fourth infusion pipe 21 is in a closed state, and the second delivery pump 20 and the first delivery pump 9 are started at the same time. At this time, clean water is delivered to the inside of the collection tank 1 and the installation cylinder 11, thereby achieving cleaning of the inside of the collection tank 1 and the installation cylinder 11.

[0030] Example 3

[0031] like Figure 5 As shown, the liquid pipe 6 is provided with a plurality of liquid suction holes 24 . The arrangement of the liquid suction holes 24 allows the liquid located between the inner wall of the collecting tank 1 and the middle of the rotating shaft 2 to enter the liquid pipe 6 more quickly.

[0032] Example 4

[0033] like Figure 3 As shown, the bottom of the collecting tank 1 is conical, and a discharge pipe is provided at the bottom. The conical structure is more conducive to the deposition of sediments such as gravel. The setting of the discharge pipe is conducive to discharging sediments such as gravel in the collecting tank 1.

[0034] Working principle: When in use, the diluted manure enters the collection tank 1 through the feed pipe 5, and the first motor 4 and the second motor 13 are started. The first motor 4 drives the rotating shaft 2 and the stirring disc 3 to rotate, realizing the centrifugation of the manure. The heavier gravel will move to the edge of the collection tank 1 under the action of centrifugal force, and the gravel content in the manure in the middle will be significantly reduced. Then the first delivery pump 9 is started, and the solenoid valve 25 on the first delivery pipe 8 is in the open state, and the other solenoid valves 25 are in the closed state. At this time, the manure in the collection tank 1 will enter the annular pipe 7 through the suction pipe 6, and then enter the installation cylinder 11 through the first delivery pipe 8 and the second delivery pipe 10. The rotation of the second motor 13 drives the auger 12 to rotate. When the manure enters the installation cylinder 11, it is transported obliquely upward by the auger 12. During the transportation process, the liquid in the manure will leak into the collection tank 16 through the leakage hole 15, and the solid will be transported to the sewage pipe 14 for discharge.

Claims

1. High-efficiency solid-liquid separation device for dairy farm manure, characterized by: include: The first-stage separation and the second-stage separation are as follows: the first-stage separation comprises a collecting tank (1); a rotating shaft (2) is rotatably mounted inside the collecting tank (1); a stirring disc (3) is fixedly mounted on the bottom end of the rotating shaft (2); a first motor (4) is fixedly mounted on the top of the collecting tank (1); the first motor (4) is fixed to the rotating shaft (2); a feeding pipe (5) is mounted on the top of the collecting tank (1); a plurality of liquid suction pipes (6) distributed in an annular array are provided in the collecting tank (1); the liquid suction pipes (6) are located between the inside of the collecting tank (1) and the middle of the rotating shaft (2); the plurality of liquid suction pipes (6) all extend to the top of the collecting tank (1) and are fixedly mounted with the same annular pipe (7); A first infusion tube (8) is fixedly installed on one side of the annular tube (7), a first infusion pump (9) is installed on the first infusion tube (8), a second infusion tube (10) is installed on the first infusion pump (9), the secondary separation includes an inclined mounting cylinder (11), the second infusion tube (10) is connected to the mounting cylinder (11), an agitator (12) is rotatably installed inside the mounting cylinder (11), the agitator (12) is composed of a transmission shaft and a threaded conveying blade, a second motor (13) is installed at one end of the agitator (12), a plurality of leakage holes (15) are opened at the bottom of the mounting cylinder (11), and a sewage pipe (14) is installed on the mounting cylinder (11).

2. The high-efficiency solid-liquid separation device for dairy farm excrement according to claim 1, characterized in that: A collecting trough (16) is fixedly mounted on the bottom of the mounting cylinder (11). The dairy farm manure solid-liquid efficient separation device further comprises a collecting box (17). A drainage pipe (18) is mounted on the collecting trough (16). The drainage pipe (18) extends into the interior of the collecting box (17). A third infusion pipe (19) is mounted on the first infusion pipe (8). A second infusion pump (20) is mounted on the third infusion pipe (19). A fourth infusion pipe (21) is mounted on the second infusion pump (20). The fourth infusion pipe (21) extends into the interior of the collecting box (17). Solenoid valves (25) are mounted on the first infusion pipe (8), the third infusion pipe (19) and the fourth infusion pipe (21).

3. The high-efficiency solid-liquid separation device for dairy farm manure according to claim 1, characterized in that: A baffle (22) is obliquely installed at the lower part of the collecting box (17), and one side of the baffle (22) does not contact the collecting box (17), forming a connection port.

4. The high-efficiency solid-liquid separation device for dairy farm excrement according to claim 1, characterized in that: A clean water delivery pipe (23) is also installed on the second delivery pump (20), and a solenoid valve (25) is also installed on the clean water delivery pipe (23).

5. The high-efficiency solid-liquid separation device for dairy farm manure according to claim 1, characterized in that: The liquid suction pipe (6) is provided with a plurality of liquid suction holes (24).

6. The high-efficiency solid-liquid separation device for dairy farm manure according to claim 1, characterized in that: The bottom of the collecting tank (1) is conical, and a discharge pipe is provided at the bottom.

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