CN114835360B - Method for treating livestock and poultry manure water - Google Patents

Abstract

The invention discloses a method for treating livestock and poultry excrement, relating to the field of excrement treatment, comprising the following steps: putting the excrement into a collection tank for preliminary precipitation, separating the upper layer of liquid excrement; removing the feces deposited at the bottom of the collection tank The mixture is sent to the solid-liquid separation device for solid-liquid separation of livestock manure, and the solid manure is made into organic fertilizer; the manure is sent to the biogas tank for fermentation treatment; the generated biogas and biogas slurry; The solid-liquid separation device can carry out solid-liquid separation treatment on the feces, and then make the solid feces into organic fertilizer, send the liquid feces to the biogas digester for fermentation treatment, and obtain biogas for power generation and household combustion, which greatly improves the The utilization rate of feces; the solid-liquid separation device involved in the present invention is used in conjunction with the pressing component, the replacement component and the cleaning device, and the filter screen can be automatically replaced and cleaned regularly, without manual removal of the filter screen, and the time required for maintenance is relatively short. short.

Description

A method for treating poultry manure

technical field

The invention relates to the field of manure treatment, in particular to a method for treating livestock and poultry manure.

Background technique

Livestock and poultry breeding plants can produce a lot of livestock and poultry manure every day. In the past, this kind of manure was often transported to septic tanks for landfill treatment. The manure after landfill will affect the surrounding environment. In order to meet the needs of environmental protection , began to collect and treat this type of feces in a centralized manner. The current utilization rate of collection and treatment is not high, and solid-liquid separation of feces is required during collection and treatment. Separate treatment of solid feces and liquid feces can greatly improve Utilization of feces;

The existing solid-liquid separation equipment needs to use the filter screen to filter the feces when it is working. The filter screen is prone to clogging after a period of use, so it is necessary to remove the filter screen frequently and then clean it. It is inconvenient to remove the filter screen of the equipment, which leads to a long maintenance time and affects the normal use of the equipment.

Contents of the invention

The object of the present invention is to provide a method for treating livestock and poultry manure, so as to solve the problems mentioned in the above-mentioned background technology.

A method for treating livestock and poultry manure, comprising the following steps:

S1. Put the collected dung into the collection tank for preliminary sedimentation, and separate the upper liquid dung;

S2. Send the feces mixture deposited at the bottom of the collection tank to a solid-liquid separation device for solid-liquid separation of animal manure to obtain solid feces and liquid feces;

S3. Deodorizing and disinfecting the solid feces obtained in S2 to make organic fertilizers; sending the feces obtained in S1 and S2 into biogas digesters for fermentation;

S4. The biogas generated in S3 is collected and used as clean energy, and the biogas slurry is transported to the biogas slurry storage tank for plant spraying and fertilization.

The solid-liquid separation device includes a conveying cylinder, a conveying motor, a pressing assembly, a replacement assembly, a cleaning assembly, and a discharge device. The conveying cylinder is provided with a feeding port, and the conveying cylinder is connected with an auger for rotation. The screw auger is fixedly connected with the output shaft of the conveying motor, the conveying motor is fixedly connected with the conveying cylinder, the front end of the conveying cylinder is fixedly connected with a frame, and the front and rear sides of the frame are provided with the conveying cylinder. The inner ring coincides with the discharge port, the frame is fixedly connected with the inner cylinder, the inner cylinder communicates with two discharge ports, the bottom of the inner cylinder is provided with an opening, and the bottom of the opening is provided with There is a movable filter screen, the pressing assembly is arranged under the filter screen, and is used to press the filter screen on the inner cylinder body, and the replacement assembly is provided on the frame, and is used to move the filter screen, so that the clean The filter screen moves to the bottom of the opening. There are two cleaning components, which are respectively located on the racks on both sides of the inner cylinder, for cleaning the moving dirty filter screen. The discharge device is located on the rack. The front end is used for the discharge of the inner cylinder.

Preferably, the pressing assembly includes a pressing plate, a drive plate and an electric push rod, the pressing plate is an arc-shaped plate, and the pressing plate is provided with a number of drains, and the drains are located in the opening area , the four corners of the pressing plate are fixedly connected with connecting rods, the connecting rods are fixedly connected with the drive plate, the drive plate is fixedly connected with the output end of the electric push rod, and the electric push rod is fixedly connected with the frame , the connecting rod is also slidingly connected with the inner cylinder.

Preferably, both sides of the pressing plate are provided with limiting components, the limiting components are composed of a pair of sliding rollers, the sliding rollers are rotatably connected to the inner cylinder, and the filter screen is located between the two sliding rollers between.

Preferably, the replacement assembly includes roll 1 and roll 2, the roll 1 and roll 2 are respectively located on the left and right sides of the inner cylinder, and are rotatably connected to the frame, and the filter screen is wound on the roll One end is fixedly connected with roll one, and the other end passes through two pairs of sliding rollers in turn, and is fixedly connected with roll two. The roll one and roll two are respectively connected with two different winding motors The output shaft is fixedly connected.

Preferably, the cleaning assembly includes a cleaning brush and a water spray pipe, the cleaning brush is rotatably connected to the frame, a driven sprocket is fixedly connected to the cleaning brush, and a driving sprocket is fixedly connected to the output shaft of the winding motor. sprocket, the driving sprocket is connected with the driven sprocket by a chain, the water spray pipe is fixedly connected with the frame, and is located on the outside of the cleaning brush, the water spray pipe is connected with the water pump, and the water spray pipe The bottom and the side facing the cleaning brush are all provided with some water spray ports.

Preferably, the discharge device includes a cover plate and a fixing plate, the cover plate is located at the front side of the frame, and can completely close the discharge port, a slide bar is fixedly connected to the cover plate, and the slide bar It is slidably connected with the fixed plate, and a stopper is provided at its end, the fixed plate is fixedly connected with the frame, and a spring is provided on the slide bar between the cover plate and the fixed plate.

The advantages of the present invention are: by adopting the solid-liquid separation device involved in the present invention, the feces can be subjected to solid-liquid separation treatment, and then the solid feces can be made into organic fertilizer, and the liquid feces can be sent to a biogas digester for fermentation treatment to obtain Biogas is used for power generation and household combustion, which greatly improves the utilization rate of manure;

In the solid-liquid separation device involved in the present invention, through the combined use of the pressing component, the replacement component and the cleaning device, the filter screen can be automatically replaced and cleaned regularly, without manual removal of the filter screen, and the time required for maintenance is relatively short.

Description of drawings

Figure 1 is a schematic diagram of the external structure of a solid-liquid separation device;

Fig. 2 is the overall sectional view of solid-liquid separation device;

Fig. 3 is a partial enlarged view of place A in Fig. 2;

Fig. 4 is the structural representation of each component in the frame;

Fig. 5 is the front view after the cross section of the inner cylinder is cut;

Fig. 6 is a partial enlarged view of place B in Fig. 5;

Fig. 7 is a structural schematic diagram of the pressing assembly.

In the figure: 1-conveying cylinder, 1a-feeding port, 2-conveying motor, 3-pressing assembly, 31-pressing plate, 32-driving plate, 33-electric push rod, 311-drain outlet, 34-connection Rod, 35-limiting assembly;

4-replacement components, 41-roller one, 42-roller two, 43-winding motor;

5-cleaning assembly, 51-cleaning brush, 52-spray pipe, 53-driven sprocket, 54-driving sprocket;

6-discharging device, 61-cover plate, 62-fixed plate, 63-sliding rod, 64-block, 65-spring;

7-screw auger, 8-frame, 81-outlet, 9-inner cylinder, 91-opening, 10-filter.

Detailed ways

In order to make the technical means, creative features, goals and effects of the invention easy to understand, the invention will be further elaborated below in conjunction with specific embodiments.

As shown in Fig. 1 to Fig. 7, a kind of method for livestock and poultry manure water treatment comprises the following steps:

Step 1. Put the collected dung into the collection tank for preliminary sedimentation, and separate the upper liquid dung;

Step 2, sending the feces mixture deposited at the bottom of the collection tank to a solid-liquid separation device for solid-liquid separation of animal manure to obtain solid feces and liquid feces;

Step 3, deodorizing and disinfecting the solid feces obtained in S2 and making them into organic fertilizers; sending the feces obtained in S1 and S2 into biogas digesters for fermentation;

Step 4: Collect the biogas generated by S3 and use it as clean energy, and transport the biogas slurry to the biogas slurry storage tank for spraying and fertilizing plants.

In this embodiment, the solid-liquid separation device includes a conveying cylinder 1, a conveying motor 2, a pressing assembly 3, a replacement assembly 4, a cleaning assembly 5, and a discharge device 6, and the conveying cylinder 1 is provided with a feeding port 1a, the conveying cylinder 1 is rotationally connected with an auger 7, and the auger 7 is fixedly connected with the output shaft of the conveying motor 2, and the conveying motor 2 is fixedly connected with the conveying cylinder 1, and the conveying cylinder 1 The front end is fixedly connected with a frame 8, and the front and rear sides of the frame 8 are provided with a discharge port 81 overlapping with the inner ring of the delivery cylinder 1, and the frame 8 is fixedly connected with an inner cylinder body 9. The inner cylinder 9 communicates with two outlets 81, the bottom of the inner cylinder 9 is provided with an opening 91, and a movable filter screen 10 is provided below the opening 91, and the pressing assembly 3 is arranged on the filter screen 10, used to press the filter screen 10 on the inner cylinder 9, the replacement assembly 4 is arranged on the frame 8, used to move the filter screen 10, so that the clean filter screen 10 moves to the bottom of the opening 91, The cleaning assembly 5 is provided with two, respectively located on the frame 8 on both sides of the inner cylinder body 9, for cleaning the moving dirty filter screen 10, and the discharge device 6 is arranged at the front end of the frame 8 for In the discharge of the inner cylinder 9.

In this embodiment, the pressing assembly 3 includes a pressing plate 31, a driving plate 32, and an electric push rod 33, the pressing plate 31 is an arc-shaped plate, and the pressing plate 31 is provided with several drainage ports 311, the drain port 311 is located in the area of the opening 91, the diameter of the drain port 311 is larger, on the one hand, it can ensure that the liquid feces can be discharged normally, on the other hand, the area without the drain port 311 on the pressing plate 31 can filter The net 10 is supported to prevent the strainer 10 from being deformed and damaged. The four corners of the pressing plate 31 are fixedly connected with connecting rods 34, and the connecting rods 34 are fixedly connected with the drive plate 32, and the drive plate 32 is fixedly connected with the output end of the electric push rod 33, and the electric push rod 33 is fixedly connected with the frame 8, and the connecting rod 34 is also slidably connected with the inner cylinder 9.

In this embodiment, both sides of the pressing plate 31 are provided with a limit assembly 35, the limit assembly 35 is composed of a pair of sliding rollers, the sliding rollers are rotatably connected with the inner cylinder 9, and the filter The net 10 is located between the two sliding rollers, and can limit the filter net 10 , and the outer sides of the two limiting components 35 are provided with a cleaning component 5 .

In this embodiment, the replacement assembly 4 includes a first roll 41 and a second roll 42, the first roll 41 and the second roll 42 are respectively located on the left and right sides of the inner cylinder 9, and rotate with the frame 8 connected, the filter screen 10 is wound on the roll one 41, and one end thereof is fixedly connected with the roll one 41, and the other end passes through two pairs of sliding rollers in sequence, and is fixedly connected with the two rolls 42, and the sliding roller is used for pairing For the limit of the filter screen 10, the first roll 41 and the second roll 42 are respectively fixedly connected to the output shafts of two different winding motors 43 .

In this embodiment, the cleaning assembly 5 includes a cleaning brush 51 and a water spray pipe 52, the cleaning brush 51 is rotatably connected to the frame 8, and a driven sprocket 53 is fixedly connected to the cleaning brush 51. The bristle length of the cleaning brush 51 is long enough to ensure that the contact with the filter screen 10 can be maintained during the motion of the filter screen 10, and the output shaft of the winding motor 43 is fixedly connected with a driving sprocket 54, and the driving sprocket 54 and The driven sprocket 53 is connected by a chain. Described water spray pipe 52 is fixedly connected with frame 8, and is positioned at the outside of cleaning brush 51, and described water spray pipe 52 is connected with water pump, and the bottom of described water spray pipe 52 and the side toward cleaning brush 51 are all provided with Several water spouts. The water spray pipe 52 can wash the filter screen 10 and the cleaning brush 51 to clean up the attached feces on the cleaning brush 51 and the filter screen 10 .

In this embodiment, the discharge device 6 includes a cover plate 61 and a fixing plate 62, the cover plate 61 is located on the front side of the frame 8, and can completely close the discharge port 81, when the inner cylinder 9 When the amount of solid feces increases, the cover plate 61 can be driven so that the feces are discharged from the gap between the cover plate 61 and the discharge port 81. The cover plate 61 is fixedly connected with a slide bar 63, and the slide bar 63 is connected to the fixed plate. 62 is slidably connected, and a stopper 64 is provided at its end, the fixed plate 62 is fixedly connected with the frame 8 , and a spring 65 is provided on the slide bar 63 between the cover plate 61 and the fixed plate 62 .

Working process and its principle:

The dung water enters the conveying cylinder 1 from the feeding port 1a, and the conveying motor 2 starts to drive the screw auger 7 to rotate, thereby conveying the dung water into the inner cylinder 9, and the liquid in the dung water passes through the opening at the bottom of the inner cylinder 9 in turn 91, the drain port 311 on the filter screen 10 and the pressing plate 31 is discharged.

When the accumulation of solid feces in the inner cylinder 9 increases, the cover plate 61 will be squeezed, and the liquid in the feces will be further squeezed out, and will be discharged after being filtered through the filter screen 10. When the volume of solid feces increases to a certain extent , the extruding force on the cover plate 61 increases, and the cover plate 61 moves toward the fixed plate 62 under the guide action of the slide bar 63, the spring 65 is compressed, and the solid excrement after extrusion dehydration is then released from the discharge port 81 and the cover. The gap between the plates 61 is extruded.

The first roll 41 is provided with a rolled filter screen 10, and the other end of the filter screen 10 is fixed on the roll 2 42. When the solid-liquid separation device has been working for a period of time and is in an idle state , the electric push rod 33 elongates, the driving plate 32 descends, and the driving plate 32 moves down the pressing plate 31 originally pressed on the filter screen 10 through the connecting rod 34. At this time, the filter screen 10 is not affected by the pressing plate 31 and The compression effect of the inner cylinder body 9.

Two rewinding motors 43 are started, which respectively drive the first reel 41 and the second reel 42 to rotate. At this time, the first reel 41 is in the unwinding state, while the second reel 42 is in the rewinding state. The filter screen that has been used for a period of time 10. Under the limiting action of the two sliding rollers, gradually move from the bottom of the opening 91 to the second roller 42. During this process, the driving sprocket 54 drives the cleaning brush 51 to rotate through the driven sprocket 53, and the cleaning brush 51 Carry out preliminary cleaning to filter screen 10, the bristle of cleaning brush 51 is long enough, can guarantee that filter screen 10 can keep in contact with filter screen 10 in moving process, water pump starts simultaneously, and spray pipe 52 sprays high-pressure water flow, to filter screen 10 And the feces attached to the cleaning brush 51 is rinsed, and the rinsed filter screen 10 is wound up in the volume roller two 42 .

The new filter screen 10 is unwound from the roll one 41 and moved to the bottom of the opening 91 to complete the replacement and cleaning of the filter screen 10 .

Afterwards, the electric push rod 33 is retracted to drive the pressing plate 31 to press and fit the clean filter screen 10 to the inner cylinder 9 again, and seal the opening 91, so that the solid-liquid separation device can continue to be used.

After changing the filter screen 10 several times, the filter screen 10 on the roll one 41 will be completely wound up on the roll two 42 . At this time, the functions of the first roll 41 and the second roll 42 are reversed, the first roll 41 will change to the winding state, and the second roll 42 will change to the unwinding state, that is, the first roll 41 and the second roll 42 When the rotation direction is changed, the filter screen 10 rinsed on the roll 2 42 can enter the bottom of the opening 91 again to participate in the filtering work, so as to improve the utilization rate of the filter screen 10 . The rinsed filter screen 10 can be cleaned and rinsed again through the cleaning brush 51 and the water spray pipe 52 to ensure the cleanliness of the filter screen 10 .

It can be known from common technical knowledge that the invention can be realized through other embodiments without departing from its spirit or essential features. Accordingly, the above-disclosed embodiments are, in all respects, illustrative and not exclusive. All changes within the scope of the invention or within the scope equivalent to the invention are embraced by the invention.

Claims (3)

1. a method for livestock and poultry manure treatment, is characterized in that, comprises the following steps: S1. Put the collected dung into the collection tank for preliminary sedimentation, and separate the upper liquid dung; S2. Send the feces mixture deposited at the bottom of the collection tank to a solid-liquid separation device for solid-liquid separation of animal manure to obtain solid feces and liquid feces; S3. Deodorizing and disinfecting the solid feces obtained in S2 to make organic fertilizers; sending the feces obtained in S1 and S2 into biogas digesters for fermentation; S4. The biogas generated in S3 is collected as clean energy, and the biogas slurry is transported to the biogas slurry storage tank for plant spraying and fertilization; The solid-liquid separation device includes a conveying cylinder (1), a conveying motor (2), a pressing component (3), a replacement component (4), a cleaning component (5) and a discharge device (6). The conveying cylinder ( 1) is provided with a feed inlet (1a), and the conveying cylinder (1) is rotatably connected with a screw auger (7), and the screw auger (7) is fixedly connected with the output shaft of the conveying motor (2), The conveying motor (2) is fixedly connected with the conveying cylinder (1), the front end of the conveying cylinder (1) is fixedly connected with a frame (8), and the front and rear sides of the frame (8) are equipped with conveying The outlet (81) where the inner ring of the barrel (1) overlaps, the inner cylinder (9) is fixedly connected to the frame (8), and the inner cylinder (9) communicates with two outlets (81 ), the bottom of the inner cylinder (9) is provided with an opening (91), the bottom of the opening (91) is provided with a movable filter screen (10), and the pressing assembly (3) is used to filter The net (10) is pressed tightly on the inner cylinder (9), and the replacement assembly (4) is arranged on the frame (8) to move the filter net (10), so that the clean filter net (10) moves to Below the opening (91), there are two cleaning components (5), which are respectively located on the racks (8) on both sides of the inner cylinder (9), for cleaning the moving dirty filter screen (10) , the discharge device (6) is arranged at the front end of the frame (8) for the discharge of the inner cylinder (9); The pressing assembly (3) includes a pressing plate (31), a driving plate (32) and an electric push rod (33), the pressing plate (31) is an arc-shaped plate, and the pressing plate (31 ) is located under the filter screen (10), the pressing plate (31) is provided with a number of drainage ports (311), and the drainage ports (311) are located in the area of the opening (91), and the pressing plate (31) Connecting rods (34) are fixedly connected to the four corners of the four corners, and the connecting rods (34) are fixedly connected to the drive plate (32), and the drive plate (32) is fixedly connected to the output end of the electric push rod (33). The electric push rod (33) is fixedly connected to the frame (8), and the connecting rod (34) is also slidingly connected to the inner cylinder (9); The replacement assembly (4) includes roll one (41) and roll two (42), the roll one (41) and roll two (42) are respectively located on the left and right sides of the inner cylinder (9), And connected with the frame (8) in rotation, the filter screen (10) is wound on the roll one (41), and one end thereof is fixedly connected with the roll one (41), and the other end passes through two pairs of sliding rolls in sequence, And it is fixedly connected with the roll two (42), and the roll one (41) and the roll two (42) are respectively fixedly connected with the output shafts of two different winding motors (43); The cleaning assembly (5) includes a cleaning brush (51) and a water spray pipe (52), the cleaning brush (51) is rotatably connected with the frame (8), and the cleaning brush (51) is fixedly connected with a driven sprocket (53), the output shaft of the winding motor (43) is fixedly connected with a driving sprocket (54), and the driving sprocket (54) is connected with the driven sprocket (53) through a chain. The water pipe (52) is fixedly connected to the frame (8) and is located outside the cleaning brush (51), the water spray pipe (52) is connected to the water pump, and the bottom of the water spray pipe (52) faces the One side of (51) is all provided with some water spouts. 2. The method for treating livestock and poultry manure according to claim 1, characterized in that, both sides of the pressing plate (31) are provided with limiting components (35), and the limiting component (35) ) consists of a pair of sliding rollers, the sliding rollers are rotatably connected to the inner cylinder (9), and the filter screen (10) is located between the two sliding rollers. 3. The method for treating livestock and poultry manure according to claim 1, characterized in that, the discharge device (6) includes a cover plate (61) and a fixing plate (62), and the cover plate (61 ) is located on the front side of the frame (8), and can completely close the discharge port (81), the cover plate (61) is fixedly connected with a slide bar (63), and the slide bar (63) is connected with the fixed plate (62) is slidingly connected, and its end is provided with a stopper (64), the fixed plate (62) is fixedly connected with the frame (8), and the sliding between the cover plate (61) and the fixed plate (62) The rod (63) is provided with a spring (65).

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