Dairy cow manure solid-liquid separation equipment

Abstract

The invention discloses dairy cow manure solid-liquid separation equipment which comprises a rack, a solid-liquid separation barrel fixed to the rack and a feeding hopper fixed and communicated with the position, close to one end of the solid-liquid separation barrel, of the top of the solid-liquid separation barrel, and the end, away from the feeding hopper, of the solid-liquid separation barrel is fixed and communicated with a solid discharging pipe. The solid-liquid separation barrel is internally provided with an auger conveying mechanism used for conveying fluid excrement entering from the feeding hopper, a plurality of liquid outlet holes are formed in the side wall of the solid-liquid separation barrel in a penetrating mode, and a collecting frame used for collecting liquid cow excrement seeping out of the liquid outlet holes is fixed between frame bodies on the two sides of the rack; a cleaning mechanism used for cleaning a plurality of liquid outlet holes in the solid-liquid separation barrel is arranged on the rack, the cleaning mechanism and the auger conveying mechanism share one driving part, and the liquid outlet holes are cleaned in a reciprocating mode when the auger conveying mechanism continuously conveys fluid excrement. According to the solid-liquid separation barrel, the electric energy is saved while the liquid outlet hole is conveniently cleaned to ensure normal liquid discharging of the solid-liquid separation barrel.

Description

Technical Field

[0001] The present invention relates to the technical field of animal manure treatment equipment, and particularly relates to a solid-liquid separation device for dairy cow manure. Background Art

[0002] With the development of the livestock and poultry breeding industry towards large-scale and intensive operations, the total amount of livestock and poultry waste has been increasing year by year, reaching 2 billion tons of total solids discharged annually. The pollution caused by livestock and poultry manure has become the main pollution source in rural areas of China. Using solid-liquid separation technology to treat livestock and poultry manure is currently an important way to utilize the organic components in livestock and poultry manure, turn waste into treasure, eliminate environmental pollution, and improve the agricultural ecological environment.

[0003] In the existing general technology, a screw press solid-liquid separator is usually used to separate solid and liquid from dairy cow manure. The screw press solid-liquid separator generally includes a frame, a solid-liquid separation barrel fixed on the frame, a feed hopper fixed and communicated with a position near one end of the top of the solid-liquid separation barrel, and a screw conveyor mechanism arranged in the solid-liquid separation barrel for conveying fluid manure. A plurality of liquid outlet holes are usually arranged on the side wall of the solid-liquid separation barrel, and a collection barrel for recovering the liquid dairy cow manure seeping out from the liquid outlet holes is fixed at the bottom of the frame. The solid dairy cow manure is discharged from the discharge port of the solid-liquid separation barrel. The screw press solid-liquid separator mainly separates solid and liquid from dairy cow manure through the extrusion force between the barrel wall of the solid-liquid separation barrel and the screw conveyor mechanism. The solid dairy cow manure easily blocks the liquid outlet holes on the side wall of the solid-liquid separation barrel, which has a certain impact on the normal use of the screw press solid-liquid separator. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a solid-liquid separation device for dairy cow manure.

[0005] The above technical object of the present invention is achieved through the following technical solutions: A solid-liquid separation device for dairy cow manure includes a frame, a solid-liquid separation barrel fixed on the frame, and a feed hopper fixed and communicated with a position near one end of the top of the solid-liquid separation barrel. A solid discharge pipe is fixed and communicated with the end of the solid-liquid separation barrel far from the feed hopper. A screw conveyor mechanism for conveying the fluid manure entering from the feed hopper is arranged in the solid-liquid separation barrel. A plurality of liquid outlet holes are penetrated through the side wall of the solid-liquid separation barrel. A collection frame for collecting the liquid dairy cow manure seeping out from the liquid outlet holes is fixed between the frame bodies on both sides of the frame. A cleaning mechanism for cleaning the plurality of liquid outlet holes on the solid-liquid separation barrel is arranged on the frame. The cleaning mechanism and the screw conveyor mechanism share a driving member, and reciprocally clean the liquid outlet holes while the screw conveyor mechanism continuously conveys the fluid manure.

[0006] Further, a solid discharge solenoid valve is provided on the solid discharge pipe. The auger conveying mechanism includes an L-shaped mounting plate fixed on the frame body on one side of the frame and a motor fixed on the L-shaped mounting plate. The output shaft of the motor penetrates through the L-shaped mounting plate and the frame body on one side of the frame and is rotatably connected. The auger conveying mechanism further includes a central shaft fixed to the end of the output shaft of the motor and rotatably connected to the side wall of the solid-liquid separation barrel, and an auger fixedly sleeved on the central shaft. The diameter of the central shaft increases from the discharge hopper toward the side close to the solid discharge pipe.

[0007] Further, the cross-section of the collection box is semicircular, the outer diameter of the collection box remains unchanged, the inner diameter of the collection box decreases from the middle of the collection box to both sides, and a liquid discharge pipe is fixedly connected to the bottom of the collection box. A liquid discharge solenoid valve is provided on the liquid discharge pipe.

[0008] Further, the cleaning mechanism includes a transmission component and a cleaning component. The transmission component includes a driving gear fixedly sleeved on the output shaft of the motor, a fixing plate fixed on the frame, a transmission shaft penetrating through the fixing plate and rotatably connected to the fixing plate, a driven gear fixedly sleeved on one end of the transmission shaft and meshing with the driving gear, a driving bevel gear fixedly sleeved on the other end of the transmission shaft, a cross plate fixed on the fixing plate, a transmission bevel gear rotatably installed at the bottom of the cross plate and meshing with the driving bevel gear, a vertical plate fixed on the fixing plate, a transmission rod rotatably installed on the vertical plate, and a driven bevel gear fixedly sleeved on the transmission rod and meshing with the transmission bevel gear; The cleaning component includes a cam fixedly sleeved on the transmission rod, a first fixing ring fixed on the inner wall of the collection box, a movable rod penetrating through the first fixing ring and slidably matched with the first fixing ring, a movable ring fixed to the end of the movable rod close to the feed hopper, a first spring sleeved on the movable rod and fixed between the movable ring and the first fixing ring, a first fixing ear fixed on the first fixing ring, and a cleaning brush installed on the movable rod and pressing against the outer wall of the solid-liquid separation barrel. The transmission rod is located at a position close to the edge of the cam, and the side of the cam edge away from the transmission rod abuts against the first fixing ear.

[0009] Further, a roller that is in rolling cooperation with the cam edge is fixed on the side wall of the first fixing ear close to the transmission rod.

[0010] Further, the cleaning brush includes an arc-shaped mounting block fixed on the movable rod. An installation groove is provided on the side of the arc-shaped mounting block close to the axis of the solid-liquid separation barrel. The cleaning brush further includes a movable block slidably matched with the installation groove, bristles fixed to the side of the movable block close to the axis of the solid-liquid separation barrel, and a second spring fixed to the end of the movable block away from the bristles and fixed to the inner wall of the installation groove.

[0011] Further, the hole density of the liquid outlet hole on the side close to the solid discharge pipe is greater than that on the side close to the feed hopper.

[0012] In summary, the present invention has the following beneficial effects: 1. In the present application, when the auger conveying mechanism continuously conveys the fluid manure, the cleaning mechanism reciprocally cleans the liquid outlet holes, and the cleaning mechanism and the auger conveying mechanism share a driving member, which saves electric energy while facilitating the cleaning of the liquid outlet holes to ensure the normal liquid discharge of the solid-liquid separation barrel; 2. The limitation on the shape of the collection frame in the present application makes it convenient to collect the liquid manure discharged from multiple liquid outlet holes, and it is also convenient for the liquid manure in the collection frame to be discharged from the liquid discharge pipe, so as to facilitate the staff to clean the collection frame. Description of the Drawings

[0013] Figure 1 is the overall structural schematic diagram of the embodiment of the present invention; Figure 2 is Figure 1 the enlarged schematic diagram of part A in Figure 3 is the structural schematic diagram of the embodiment of the present invention for highlighting the cleaning brush and the auger conveying mechanism; Figure 4 is the external structural schematic diagram of the solid-liquid separation barrel of the embodiment of the present invention.

[0014] In the figure: 1. Frame; 2. Solid-liquid separation barrel; 21. Feed hopper; 22. Solid discharge pipe; 221. Solid discharge solenoid valve; 23. Liquid outlet hole; 3. Auger conveying mechanism; 31. L-shaped mounting plate; 32. Motor; 33. Central shaft; 34. Auger; 4. Collection frame; 41. Liquid discharge pipe; 411. Liquid discharge solenoid valve; 5. Cleaning mechanism; 51. Transmission component; 511. Driving gear; 512. Fixed plate; 513. Transmission shaft; 514. Driven gear; 515. Driving bevel gear; 516. Horizontal plate; 517. Transmission bevel gear; 518. Vertical plate; 519. Transmission rod; 510. Driven bevel gear; 52. Cleaning component; 521. Cam; 522. First fixing ring; 523. Movable rod; 524. Movable ring; 525. First spring; 526. First fixing ear; 5261. Roller; 527. Cleaning brush; 6. Arc-shaped mounting block; 61. Mounting groove; 62. Movable block; 63. Brush bristles; 64. Second spring. Detailed Embodiments

[0015] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application; obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0016] As Figures 1-4 shown, an embodiment of the present application discloses a solid-liquid separation device for cow manure, including a frame 1, a solid-liquid separation barrel 2, a screw conveyor 34, a conveying mechanism 3, a collection box 4, and a cleaning mechanism 5. The solid-liquid separation barrel 2 is fixed on the frame 1. At a position near one end of the solid-liquid separation barrel 2 at the top, a feed hopper 21 is fixedly connected. At one end of the solid-liquid separation barrel 2 away from the feed hopper 21, a solid discharge pipe 22 is fixedly connected. A solid discharge solenoid valve 221 is provided on the solid discharge pipe 22. In this embodiment, a plurality of liquid discharge holes 23 are penetrated through the side wall of the solid-liquid separation barrel 2.

[0017] The collection box 4 is fixed between the frames on both sides of the frame 1 and is used to collect the liquid cow manure seeping out of the liquid discharge holes 23. The cross-section of the collection box 4 is semi-circular (the axis of the collection box 4 coincides with the axis of the solid-liquid separation barrel 2). The inner diameter of the collection box 4 decreases from the middle of the collection box 4 to both sides. A liquid discharge pipe 41 is fixedly connected to the bottom of the collection box 4, and a liquid discharge solenoid valve 411 is provided on the liquid discharge pipe 41.

[0018] The screw conveyor 34 conveying mechanism 3 is arranged in the solid-liquid separation barrel 2 and is used to convey the fluid manure entering from the feed hopper 21. The screw conveyor 34 conveying mechanism 3 includes an L-shaped mounting plate 31, a motor 32, a central shaft 33, and a screw 34. The L-shaped mounting plate 31 is fixed on the frame on one side. The motor 32 is fixed on the L-shaped mounting plate 31. The output shaft of the motor 32 penetrates through the L-shaped mounting plate 31 and the frame on one side of the frame 1 and is rotatably connected. The axis of the central shaft 33 coincides with the axis of the output shaft of the motor 32 and the axis of the solid-liquid separation barrel 2. The diameter of the central shaft 33 increases from the discharge hopper towards the side close to the solid discharge pipe 22. The screw 34 is fixedly sleeved on the central shaft 33.

[0019] The cleaning mechanism 5 is arranged on the frame 1 and is used to clean a plurality of liquid outlet holes 23 on the solid-liquid separation barrel 2. The cleaning mechanism 5 shares a driving part with the auger 34 conveying mechanism 3 and reciprocally cleans the liquid outlet holes 23 while the auger 34 conveying mechanism 3 continuously conveys the fluid manure. The cleaning mechanism 5 includes a transmission component 51 and a cleaning component 52. The transmission component 51 includes a driving gear 511 fixedly sleeved on the output shaft of the motor 32, a fixing plate 512 fixed on the frame 1, a transmission shaft 513 penetrating through the fixing plate 512 and rotatably connected to the fixing plate 512, a driven gear 514 fixedly sleeved on one end of the transmission shaft 513 and meshing with the driving gear 511, a driving bevel gear 515 fixedly sleeved on the other end of the transmission shaft 513, a cross plate 516 fixed on the fixing plate 512, a transmission bevel gear 517 rotatably installed at the bottom of the cross plate 516 and meshing with the driving bevel gear 515, a vertical plate 518 fixed on the fixing plate 512, a transmission rod 519 rotatably installed on the vertical plate 518, and a driven bevel gear 510 fixedly sleeved on the transmission rod 519 and meshing with the transmission bevel gear 517.

[0020] The cleaning component 52 includes a cam 521 fixedly sleeved on the transmission rod 519, a first fixing ring 522 fixed on the inner wall of the collection box 4, a movable rod 523 penetrating through the first fixing ring 522 and slidably matched with the first fixing ring 522, a movable ring 524 fixed to one end of the movable rod 523 close to the feed hopper 21, a first spring 525 sleeved on the movable rod 523 and fixed between the movable ring 524 and the first fixing ring 522, a first fixing ear 526 fixed on the first fixing ring 522, and a cleaning brush 527 installed on the movable rod 523 and tightly abutted against the outer wall of the solid-liquid separation barrel 2. The transmission rod 519 is located at a position close to the edge of the cam 521. One side of the edge of the cam 521 away from the transmission rod 519 abuts against the first fixing ear 526, and a roller 5261 that is in rolling fit with the edge of the cam 521 is fixed on the side wall of the first fixing ear 526 close to the transmission rod 519.

[0021] In this embodiment, the cleaning brush 527 includes an arc-shaped mounting block 6 fixed on the movable rod 523. An installation groove 61 is arranged on one side of the arc-shaped mounting block 6 close to the axis of the solid-liquid separation barrel 2. The cleaning brush 527 further includes a movable block 62 slidably matched with the installation groove 61, bristles 63 fixed to one side of the movable block 62 close to the axis of the solid-liquid separation barrel 2, and a second spring 64 fixed to the side of the movable block 62 away from the bristles 63. One end of the second spring 64 away from the axis of the solid-liquid separation barrel 2 is fixed to the inner wall of the installation groove 61.

[0022] To facilitate the discharge of liquid manure, the hole density of the liquid discharge hole 23 on the side close to the solid discharge pipe 22 is greater than that on the side close to the feed hopper 21. When the fluid manure moves to the side of the solid-liquid separation barrel 2 close to the solid discharge pipe 22, since the diameter of the central shaft 33 on the side close to the solid discharge pipe 22 is greater than the inner diameter of the central shaft 33 on the side close to the feed hopper 21, the inner wall of the solid-liquid separation barrel 2 cooperates with the central shaft 33 and the auger 34 to squeeze the fluid manure, so that the liquid cow manure is discharged from the liquid discharge hole 23, and the solid cow manure residue continues to move towards the solid discharge pipe 22 and is finally discharged from the solid discharge pipe 22 to achieve solid-liquid separation, so that the staff can reuse the solid and liquid cow manure separately.

[0023] The working principle of a cow manure solid-liquid separation device in this embodiment is as follows: After the motor 32 works, it drives the central shaft 33 and the auger 34 to move. The auger 34 conveys the fluid manure entering the solid-liquid separation barrel 2 from the feed hopper 21 to the side close to the solid discharge pipe 22. The diameter of the central shaft 33 on the side close to the solid discharge pipe 22 is greater than the inner diameter of the central shaft 33 on the side close to the feed hopper 21. The inner wall of the solid-liquid separation barrel 2 cooperates with the central shaft 33 and the auger 34 to squeeze the fluid manure, and the cow manure realizes solid-liquid separation. The driving gear 511 rotates during the operation of the motor 32, so that the driven gear 514, the transmission shaft 513, the driving bevel gear 515, the driven bevel gear 517, the transmission rod 519, the driven bevel gear 510 and the cam 521 all rotate. Among them, the transmission rod 519 is located at a position close to the edge of the cam 521. Under the elastic force of the first spring 525, the cam 521 makes the roller 5261, the first fixed ear 526, the movable ring 524 and the movable rod 523 all do reciprocating motions along the axis of the solid-liquid separation barrel 2. The cleaning brush 527 moves synchronously with the movable rod 523, and the bristles 63 of the cleaning brush 527 reciprocally clean the multiple liquid discharge holes 23 on the solid-liquid separation barrel 2. The cleaning mechanism 5 and the auger 34 conveying mechanism 3 share a driving part (motor 32), which saves electric energy while facilitating the cleaning of the liquid discharge holes 23 to ensure the normal liquid discharge of the solid-liquid separation barrel 2.

[0024] To further improve the cleaning effect of the cow manure solid-liquid separation device, a backwashing structure can be set on the solid-liquid separation barrel 2, which is beneficial to ensuring the normal use of the cow manure solid-liquid separation device. The backwashing structure adopts a design similar to that of a household pre-filter, which belongs to conventional technical means and will not be elaborated here.

[0025] The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. A solid-liquid separation device for cow manure, comprising a frame (1), a solid-liquid separation barrel (2) fixed on the frame (1), and a feed hopper (21) fixed and communicated with a position near one end of the top of the solid-liquid separation barrel (2) close to the solid-liquid separation barrel (2). One end of the solid-liquid separation barrel (2) far from the feed hopper (21) is fixed and communicated with a solid discharge pipe (22). A screw conveyor mechanism (3) for conveying the fluid manure entering from the feed hopper (21) is arranged in the solid-liquid separation barrel (2). A plurality of liquid outlet holes (23) are penetrated through the side wall of the solid-liquid separation barrel (2). A collection frame (4) for collecting the liquid cow manure seeping out from the liquid outlet holes (23) is fixed between the frames on both sides of the frame (1). It is characterized in that: A cleaning mechanism (5) for cleaning a plurality of liquid outlet holes (23) on the solid-liquid separation barrel (2) is provided on the frame (1). The cleaning mechanism (5) shares a driving member with the auger (34) conveying mechanism (3), and reciprocally cleans the liquid outlet holes (23) when the auger (34) conveying mechanism (3) continuously conveys the fluid manure.

2. The solid-liquid separation device for dairy cow manure according to claim 1, characterized in that: A solid discharge solenoid valve (221) is provided on the solid discharge pipe (22). The auger (34) conveying mechanism (3) includes an L-shaped mounting plate (31) fixed on the frame of one side of the frame (1) and a motor (32) fixed on the L-shaped mounting plate (31). The output shaft of the motor (32) penetrates through the L-shaped mounting plate (31) and the frame of one side of the frame (1) and is rotatably connected. The auger (34) conveying mechanism (3) further includes a central shaft (33) fixed to the end of the output shaft of the motor (32) and rotatably connected to the side wall of the solid-liquid separation barrel (2), and an auger (34) fixedly sleeved on the central shaft (33). The diameter of the central shaft (33) increases from the discharge hopper towards the side close to the solid discharge pipe (22).

3. The solid-liquid separation equipment for cow manure according to claim 2, characterized in that: The cross-section of the collection frame (4) is semi-circular. The outer diameter of the collection frame (4) remains unchanged, and the inner diameter of the collection frame (4) decreases from the middle of the collection frame (4) to both sides. A liquid discharge pipe (41) is fixedly connected to the bottom of the collection frame (4), and a liquid discharge solenoid valve (411) is provided on the liquid discharge pipe (41).

4. The solid-liquid separation device for cow manure according to claim 3, characterized in that: The cleaning mechanism (5) includes a transmission component (51) and a cleaning component (52). The transmission component (51) includes a driving gear (511) fixedly sleeved on the output shaft of the motor (32), a fixing plate (512) fixed on the frame (1), a transmission shaft (513) penetrating through the fixing plate (512) and rotatably connected to the fixing plate (512), a driven gear (514) fixedly sleeved on one end of the transmission shaft (513) and meshing with the driving gear (511), a driving bevel gear (515) fixedly sleeved on the other end of the transmission shaft (513), a cross plate (516) fixed on the fixing plate (512), a transmission bevel gear (517) rotatably mounted on the bottom of the cross plate (516) and meshing with the driving bevel gear (515), a vertical plate (518) fixed on the fixing plate (512), a transmission rod (519) rotatably mounted on the vertical plate (518), and a driven bevel gear (510) fixedly sleeved on the transmission rod (519) and meshing with the transmission bevel gear (517); The cleaning component (52) includes a cam (521) fixedly sleeved on the transmission rod (519), a first fixing ring (522) fixed on the inner wall of the collection box (4), a movable rod (523) penetrating through the first fixing ring (522) and slidably matched with the first fixing ring (522), a movable ring (524) fixed to one end of the movable rod (523) close to the feed hopper (21), a first spring (525) sleeved on the movable rod (523) and fixed between the movable ring (524) and the first fixing ring (522), a first fixing ear (526) fixed on the first fixing ring (522), and a cleaning brush (527) installed on the movable rod (523) and abutted against the outer wall of the solid-liquid separation barrel (2). The transmission rod (519) is located at a position close to the edge of the cam (521), and one side of the edge of the cam (521) far from the transmission rod (519) abuts against the first fixing ear (526).

5. A cow manure solid-liquid separation device according to claim 4, characterized in that: A roller (5261) that is in rolling fit with the edge of the cam (521) is fixed on the side wall of the first fixing ear (526) close to the transmission rod (519).

6. The solid-liquid separation device for dairy cow manure according to claim 5, characterized in that: The cleaning brush (527) includes an arc-shaped mounting block (6) fixed on the movable rod (523). An installation groove (61) is arranged on one side of the arc-shaped mounting block (6) close to the axis of the solid-liquid separation barrel (2). The cleaning brush (527) further includes a movable block (62) slidably matched with the installation groove (61), bristles (63) fixed to one side of the movable block (62) close to the axis of the solid-liquid separation barrel (2), and a second spring (64) fixed to the side of the movable block (62) far from the bristles (63). One end of the second spring (64) far from the axis of the solid-liquid separation barrel (2) is fixed to the inner wall of the installation groove (61).

7. A cow manure solid-liquid separation device according to claim 6, characterized in that: The hole density of the liquid outlet hole (23) on the side close to the solid discharge pipe (22) is greater than the hole density of the liquid outlet hole (23) on the side close to the feed hopper (21).

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