Biogas slurry tank car broadcasting device

Abstract

The utility model relates to the technical field of agricultural equipment, and discloses a biogas slurry tank car spreading device which comprises a tank car body and a storage tank body, lifting mechanisms are arranged on the left side and the right side of the storage tank body, an extraction mechanism communicated with the interior of the storage tank body is arranged on the rear portion of the tank car body, and a fertilizer guide pipe is arranged at the rear end of the storage tank body. A flow control pump is arranged at the rear part of the tank car body, a fertilizer scattering mechanism extending out of the rear end part of the tank car body is arranged on the flow control pump, and a sewage guide plate is arranged on the tank car body at the rear side of the flow control pump. The biogas slurry tank truck is high in fertilizing efficiency and uniform and adjustable in fertilizer spreading flow, and biogas slurry can be directly pumped from the storage tank body without manual intervention by arranging the pumping mechanism at the rear part of the tank truck body, so that the labor intensity is reduced, the biogas slurry spreading operation efficiency can be effectively improved, and the labor intensity is reduced. Through the arrangement of a fertilizer guide pipe and a flow control pump and the arrangement of a fertilizer scattering mechanism, the biogas slurry can be quantitatively and uniformly applied according to the nutrient requirements of crops, and the fertilizer utilization rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural equipment, and particularly relates to a spreading device for a biogas slurry tank truck. Background Art

[0002] Under the background of the country's active promotion of the "dual carbon" strategy, agricultural wastes such as livestock and poultry manure and crop straws are efficiently utilized in biogas projects and fermented through the "anaerobic fermentation technology". On the one hand, zero-carbon energy biogas is produced, and on the other hand, organic fertilizers and a large amount of biogas slurry are produced. The biogas slurry contains a large number of elements such as nitrogen, phosphorus, and potassium, medium and trace elements, organic matter, hormones, amino acids, organic acids, humic acids, various hydrolytic enzymes, beneficial microorganisms, and active substances, which can not only provide various nutrients for crop growth and development, but also improve the stress resistance of crops and the quality of agricultural products, and is an ideal organic fertilizer.

[0003] As a quick-acting organic liquid fertilizer, the biogas slurry is rich in nitrogen fertilizer content. Therefore, the planting and breeding circular mode has broad development prospects. The biogas slurry is applied to the field as an organic liquid fertilizer for crops to absorb and utilize, but there are many inconveniences in returning the biogas slurry to the field due to the lack of effective equipment and tools. At present, the way of returning the biogas slurry to the field is mostly the extensive flooding irrigation method, and the following problems still exist in the actual operation process of this returning method: First, the application amount of the biogas slurry is too much, which is easy to cause environmental pollution and the fertilizer utilization rate is low; second, the application of the biogas slurry is uneven and the fertilization efficiency is low; third, the labor intensity is large and the efficiency is low. In the context of the continuous increase of labor costs and the increasingly strict environmental protection requirements, this operation method is obviously no longer applicable and cannot meet the fertilization requirements of large-scale ecological agriculture. Since the traditional method of returning the biogas slurry to the field not only takes time and effort, but also is difficult to achieve precise control of fertilizer application, which may lead to uneven distribution of fertilizers, affecting both the growth of crops and potentially causing environmental pollution.

[0004] Therefore, in order to improve the efficiency of manure treatment and agricultural resource utilization, while reducing the dependence on human resources and reducing the risk of environmental pollution, it is necessary to develop a new type of equipment that can automatically load biogas slurry, efficiently transport biogas slurry, and accurately control the flow rate for uniform fertilization. Such equipment will contribute to the sustainable development of the breeding and planting industries, while reducing the pressure on the environment and achieving the sustainable development of the planting and breeding circular ecological agriculture. Content of the Utility Model

[0005] The purpose of the utility model is to provide a spreading device for a biogas slurry tank truck with high fertilization efficiency, uniform and adjustable spreading flow rate for the above problems.

[0006] To achieve the above object, the present utility model discloses a spreading device for biogas slurry tank trucks, which includes a tank truck body and a storage tank arranged on the tank truck body. Its structural features are that lifting mechanisms cooperating with the storage tank are arranged on the tank truck body on both the left and right sides of the storage tank. At the rear of the tank truck body and on one side of the storage tank, a pumping mechanism communicating with the inside of the storage tank is provided. A fertilizer guiding pipe is arranged near the lower part at the rear end of the storage tank. A flow control pump connected to the fertilizer guiding pipe is arranged at the rear of the tank truck body. A fertilizer spreading mechanism extending out of the rear end of the tank truck body is arranged on the flow control pump. A sewage guiding plate matching the fertilizer spreading mechanism is arranged on the tank truck body behind the flow control pump.

[0007] After adopting the above structure, by controlling the inclination of the storage tank through the lifting mechanism, the full utilization of biogas slurry during fertilization can be effectively ensured and residues can be avoided. By arranging the pumping mechanism at the rear of the tank truck body, biogas slurry can be directly pumped from the storage tank without manual intervention, thus reducing the labor intensity and effectively improving the transportation efficiency of biogas slurry. Through the arrangement of the fertilizer guiding pipe and the flow control pump and the matching with the fertilizer spreading mechanism, the biogas slurry can be evenly fertilized according to the needs of crops, improving the fertilizer utilization rate and reducing environmental pollution. By arranging the sewage guiding plate on the tank truck body behind the flow control pump, it can prevent the fertilizer from splashing onto the vehicle body during fertilization, effectively keeping the equipment clean and reducing fertilizer waste.

[0008] Preferably, the storage tank includes a tank body that is closed on all sides and open at the rear, and a seal cover that can be flipped up and down is arranged at the opening of the tank body. The upper part of the seal cover is hinged to the tank body, and first hydraulic cylinders hinged to the side walls of the tank body are respectively arranged at the left and right ends of the seal cover. Mounting and reinforcing plates cooperating with the first hydraulic cylinders and the lifting mechanism are respectively arranged on the outer walls on both the left and right sides of the tank body. The two mounting and reinforcing plates are symmetrical to each other and are arranged close to the seal cover. By arranging the seal cover at the rear of the tank body, it is convenient for the staff to easily discharge the sewage to the outside of the vehicle through the sewage guiding plate, and can effectively keep the equipment clean.

[0009] Preferably, the lifting mechanism includes a hinge seat arranged on the tank truck body and near the middle position of the storage tank. A second hydraulic cylinder is hinged to the hinge seat. The end of the telescopic rod of the second hydraulic cylinder is hinged to the mounting and reinforcing plate on the side wall of the storage tank. By controlling the inclination of the storage tank with two symmetrical second hydraulic cylinders, its structure is stable and the operation is simple and fast.

[0010] Preferably, the extraction mechanism includes a manure pumping pump installed on the tanker body and located on the left side of the storage tank. An inlet manure pipe and a manure conveying pipe are arranged on the manure pumping pump. The manure conveying pipe is connected to the upper side of the middle part of the storage tank along an inclined direction. A diversion pipe communicating with the storage tank is arranged on the manure conveying pipe. The communication port of the diversion pipe and the storage tank is close to the position of the rear end face of the storage tank. Through the arrangement of the manure conveying pipe and the diversion pipe, biogas slurry can be efficiently and evenly filled into the storage tank. At the same time, the cleaning area through the diversion pipe is also larger during cleaning.

[0011] Preferably, a manure guiding pipe communicating with the inside of the storage tank is arranged at the lower part of the sealing cover. A stop flow switch for controlling the outflow of liquid is arranged at the outer end of the manure guiding pipe. Through the manure guiding pipe and the stop flow switch, the outflow of biogas slurry in the whole storage tank can be controlled.

[0012] Preferably, the flow control pump is a screw pump, and a corrugated pipe installed on the manure guiding pipe is arranged at the liquid inlet of the screw pump. An outlet pipe is arranged at the liquid outlet of the flow control pump. By using a screw pump, thick biogas slurry can be pressurized and discharged through the rotation speed, and the flow rate and spraying pressure can be accurately controlled. The arrangement of the corrugated pipe can adapt to the inclination of the storage tank.

[0013] Preferably, the fertilizer spreading mechanism includes a positioning and mounting frame arranged at the bottom of the tanker body and extending out of the rear end of the tanker body. It also includes a main conveying pipe connected to the flow control pump. The outer end of the main conveying pipe is connected with a tee pipe, and auxiliary conveying pipes are respectively arranged on the left and right sides of the tee pipe along the horizontal direction and installed on the positioning and mounting frame. A plurality of manure spraying ports are arranged at intervals along the length direction of the tank body on the auxiliary conveying pipe. Through the cooperation of the main conveying pipe and the tee pipe, two auxiliary conveying pipes with different lengths can be selected according to the needs of the working environment and cooperate with the screw pump to fertilize crop fields with different widths.

[0014] Preferably, the positioning and mounting frame includes two fixed support frames fixed to the bottom of the tanker body. The two fixed support frames are arranged at intervals left and right and extend out of the rear end of the tanker body. The body of the fixed support frame extending out of the rear end of the tanker body is arranged as an inclined plane with the length of the lower bottom edge greater than that of the upper edge. An inclined connecting plate is attached to the inclined surfaces of the two fixed support frames. A fixing frame arranged vertically and cooperating with the auxiliary conveying pipe is arranged at the rear side of the two fixed support frames. Through the arrangement of the two fixed support frames and the inclined connecting plate, the installation stability of the fixing frame and the sewage guiding plate can be effectively improved. At the same time, the cooperation of the auxiliary conveying pipe and the fixing frame enables the biogas slurry to be accurately conveyed to the designated position, improving the utilization rate of the fertilizer.

[0015] Preferably, the sewage guiding plate is a rectangular plate, and the upper edge of the rectangular plate is hinged to the rear end of the tanker body. The lower end surface of the sewage guiding plate is attached to the inclined connecting plate of the fertilizer spreading mechanism, and the lower end surface of the sewage guiding plate is located above the fixing frame. The sewage guiding plate can prevent fertilizers from splashing onto the vehicle body during fertilization, effectively keep the equipment clean, and reduce fertilizer waste.

[0016] In summary, the beneficial effects of the present utility model are as follows: The present utility model has high fertilization efficiency, uniform and adjustable fertilizer spreading flow rate. By controlling the inclination of the storage tank through the lifting mechanism, it can effectively ensure the full utilization of biogas slurry during fertilization and avoid residues. By setting an extraction mechanism at the rear of the tanker body, biogas slurry can be directly extracted from the storage tank without manual intervention, thus reducing labor intensity, effectively improving the transportation efficiency of biogas slurry. Through the setting of the fertilizer guiding pipe and the flow control pump and the configuration with the fertilizer spreading mechanism, biogas slurry can be evenly fertilized according to the needs of crops, improving fertilizer utilization rate and reducing environmental pollution. By setting a sewage guiding plate on the tanker body behind the flow control pump, it can prevent fertilizers from splashing onto the vehicle body during fertilization, effectively keep the equipment clean, and reduce fertilizer waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0018] Figure 2 is a schematic rear view structural diagram of the present utility model;

[0019] Figure 3 is a schematic structural diagram of the installation relationship between the main conveying pipe and the auxiliary conveying pipe of the present utility model.

[0020] In the figure: 1, tanker body; 2, storage tank; 3, lifting mechanism; 4, extraction mechanism; 5, fertilizer guiding pipe; 6, flow control pump; 7, fertilizer spreading mechanism; 8, sewage guiding plate; 9, sealing cover; 10, first hydraulic cylinder; 11, installation reinforcement plate; 12, hinge seat; 13, second hydraulic cylinder; 14, fertilizer pumping pump; 15, fertilizer inlet pipe; 16, fertilizer conveying pipe; 17, shunt pipe; 18, flow stop switch; 19, corrugated pipe; 20, liquid outlet pipe; 21, positioning installation frame; 22, main conveying pipe; 23, three-way pipe; 24, auxiliary conveying pipe; 25, fertilizer spraying port; 26, fixed support frame; 27, inclined connecting plate; 28, fixing frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following combines the drawings and embodiments to further describe in detail the specific embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0022] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0023] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0024] The following is a description of the preferred embodiments of the present utility model in conjunction with the drawings.

[0025] As Figure 1 and Figure 2 shown, the present utility model includes a tank truck body 1 and a storage tank 2 provided on the tank truck body 1. Lifting mechanisms 3 are provided on the tank truck body 1 on the left and right sides of the storage tank 2 and are matched with the storage tank 2. In the design, the storage tank 2 includes a tank body that is closed on all sides and open at the rear, and a sealing cover 9 that can be turned up and down is provided at the opening of the tank body. In this way, by providing the sealing cover 9 at the rear of the tank body, it is convenient for the staff to easily discharge the sewage to the outside of the vehicle through the sewage guide plate 8, and the cleanliness of the equipment can be effectively maintained. Among them, the upper part of the sealing cover 9 is hinged to the tank body, and first hydraulic cylinders 10 hinged to the side walls of the tank body are respectively provided at the left and right ends of the sealing cover 9. Mounting and reinforcing plates 11 that are matched with the first hydraulic cylinders 10 and the lifting mechanisms 3 are respectively provided on the outer walls of the left and right sides of the tank body, and the two mounting and reinforcing plates 11 are symmetric with each other and are arranged close to the sealing cover 9. During production, the above-mentioned lifting mechanism 3 includes a hinge seat 12 provided on the tank truck body 1 and close to the middle position of the storage tank 2. A second hydraulic cylinder 13 is hinged to the hinge seat 12, and the end of the telescopic rod of the second hydraulic cylinder 13 is hinged to the mounting and reinforcing plate 11 on the side wall of the storage tank 2. Usually, the horizontal heights of the two hinge ends are equal and are located in front of the hinge ends of the first hydraulic cylinders 10. In this way, the storage tank 2 is controlled to tilt by the two symmetric second hydraulic cylinders 13, and its structure is stable, the operation is simple and fast, and the full utilization of biogas slurry during fertilization can be effectively ensured and residues can be avoided.

[0026] As Figure 1 and Figure 2As shown, in a preferred embodiment of the present utility model, a pumping mechanism 4 communicating with the interior of the storage tank body 2 is provided at the rear of the tanker body 1 and on one side of the storage tank 2. The pumping mechanism 4 includes a manure pumping pump 14 installed on the tanker body 1 and on the left side of the storage tank 2. An inlet manure pipe 15 and a manure conveying pipe 16 are provided on the manure pumping pump 14. The inlet manure pipe 15 is used to pump the biogas slurry from the biogas slurry pond, and the manure conveying pipe 16 conveys the biogas slurry into the storage tank 2. During the design, the manure conveying pipe 16 is connected to the upper side of the middle part of the storage tank 2 along an inclined direction, so as to ensure the uniform distribution of the biogas slurry in the tank. A diversion pipe 17 communicating with the storage tank 2 is also provided on the manure conveying pipe 16. The connection port of the diversion pipe 17 and the storage tank 2 is close to the rear end face of the storage tank 2. Thus, through the arrangement of the manure conveying pipe 16 and the diversion pipe 17, the biogas slurry can be efficiently and evenly filled into the storage tank 2, and at the same time, the cleaning area through the diversion pipe 17 is also larger during cleaning.

[0027] As Figure 1 and Figure 2 shown, in another preferred embodiment of the present utility model, a manure guiding pipe 5 is provided at the rear end of the storage tank 2 near the lower part, and a flow control pump 6 connected to the manure guiding pipe 5 is provided at the rear of the tanker body 1. During the design, a manure guiding pipe 5 communicating with the interior of the storage tank 2 is provided at the lower part of the sealing cover 9. A stop flow switch 18 for controlling the outflow of the liquid is also provided at the outer end of the manure guiding pipe 5. Through the manure guiding pipe 5 and the stop flow switch 18, the outflow of the biogas slurry in the entire storage tank 2 can be controlled. The above-mentioned flow control pump 6 is a screw pump, and a corrugated pipe 19 installed on the manure guiding pipe 5 is provided at the liquid inlet of the screw pump. The arrangement of the corrugated pipe 19 can adapt to the inclination of the storage tank 2. An outlet pipe 20 for outputting the biogas slurry fertilizer is provided at the liquid outlet of the flow control pump 6. Thus, by using a screw pump, the relatively thick biogas slurry can be pressurized and discharged through the rotation speed, and the flow rate and spraying pressure can be accurately controlled.

[0028] As Figure 1 and Figure 2 and Figure 3As shown, in a specific embodiment of the present utility model, a fertilizer spreading mechanism 7 extending from the rear end of the tanker body 1 is provided on the flow control pump 6. The fertilizer spreading mechanism 7 includes a positioning and mounting frame 21 provided at the bottom of the tanker body 1 and extending out of the rear end of the tanker body 1. It also includes a main delivery pipe 22 connected to the flow control pump 6. A tee pipe 23 is connected to the outer end of the main delivery pipe 22, and auxiliary delivery pipes 24 mounted on the positioning and mounting frame 21 are respectively provided on the left and right sides of the tee pipe 23 along the horizontal direction. At the same time, a plurality of fertilizer spraying ports 25 are arranged at intervals along the length direction of the auxiliary delivery pipe 24. In this way, through the cooperation of the main delivery pipe 22 and the tee pipe 23, two auxiliary delivery pipes 24 with different lengths can be selected according to the needs of the working environment and cooperate with the screw pump to evenly fertilize crop fields with different widths. During design, the above-mentioned positioning and mounting frame 21 includes two fixed support frames 26 fixedly connected to the bottom of the tanker body 1. The two fixed support frames 26 are arranged at intervals left and right and extend out of the rear end of the tanker body 1. Among them, the body of the fixed support frame 26 extending out of the rear end of the tanker body 1 is arranged as an inclined surface with the length of the lower bottom edge greater than that of the upper edge. An inclined connecting plate 27 is fitted on the inclined surfaces of the two fixed support frames 26. At the same time, a fixed frame 28 arranged vertically and cooperating with the auxiliary delivery pipe 24 is provided at the rear side of the two fixed support frames 26. During production, the fixed frame 28 includes two support rods respectively fixedly connected to the outer sides of the two fixed support frames 26. A rectangular baffle arranged vertically is fixedly connected to the rear ends of the two support rods, and the upper end of the rectangular baffle is connected to the lower end surface of the inclined connecting plate 27. Through the arrangement of the above two fixed support frames 26 and the inclined connecting plate 27, the installation stability of the fixed frame 28 and the sewage guiding plate 8 can be effectively improved. At the same time, the cooperation of the auxiliary delivery pipe 24 and the fixed frame 28 makes the installation of the auxiliary delivery pipe 24 more stable and the biogas slurry can be accurately delivered to the designated position, improving the utilization rate of the fertilizer. Usually, the auxiliary delivery pipe 24 is fixed to the outer end surface of the rectangular baffle of the fixed frame 28 through a U-shaped pipe clamp.

[0029] As Figure 1 and Figure 2As shown, in another specific embodiment of the present utility model, a sewage guiding plate 8 matching with the fertilizer spreading mechanism 7 is provided on the tanker body 1 behind the flow control pump 6. The sewage guiding plate 8 is a rectangular plate, and the upper edge of the rectangular plate is hinged to the rear end of the tanker body 1. The lower end surface of the sewage guiding plate 8 is attached to the inclined connecting plate 27 of the fertilizer spreading mechanism 7, and the lower end surface of the sewage guiding plate 8 is located above the rectangular baffle. During manufacturing, the width of the sewage guiding plate 8 is adapted to the width of the storage tank body 2. Of course, adjusting bolts perpendicular to the plate surface can also be screwed on the left and right sides of the sewage guiding plate 8, so that the inner ends of the adjusting bolts abut against the inclined connecting plate 27. In this way, the inclination angle of the sewage guiding plate 8 can be adjusted through the adjusting bolts to ensure that the sewage guiding plate 8 can effectively play a role in different terrains. In this way, through the setting of the sewage guiding plate 8, it can prevent fertilizers from splashing onto the vehicle body during the fertilization process, effectively keep the equipment clean, and reduce the waste of fertilizers.

[0030] The above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A biogas slurry tanker spreading device, comprising a tanker body (1) and a storage tank body (2) arranged on the tanker body (1), characterized in that: Lifting mechanisms (3) that cooperate with the storage tank body (2) are provided on the tanker body (1) on the left and right sides of the storage tank body (2). An extraction mechanism (4) that communicates with the inside of the storage tank body (2) is provided at the rear of the tanker body (1) and on one side of the storage tank body (2). A fertilizer guiding pipe (5) is provided near the lower part at the rear end of the storage tank body (2). A flow control pump (6) connected to the fertilizer guiding pipe (5) is provided at the rear of the tanker body (1). A fertilizer spreading mechanism (7) extending out of the rear end of the tanker body (1) is provided on the flow control pump (6). A sewage guiding plate (8) that matches the fertilizer spreading mechanism (7) is provided on the tanker body (1) behind the flow control pump (6).

2. The biogas slurry tanker spreading device according to claim 1, characterized in that: The storage tank body (2) includes a tank body that is closed on all sides and open at the rear, and a sealing cover (9) that can be flipped up and down is provided at the opening of the tank body. The upper part of the sealing cover (9) is hinged to the tank body, and first hydraulic cylinders (10) hinged to the side walls of the tank body are respectively provided at the left and right ends of the sealing cover (9). Mounting and reinforcement plates (11) that cooperate with the first hydraulic cylinders (10) and the lifting mechanisms (3) are respectively provided on the outer walls on the left and right sides of the tank body. The two mounting and reinforcement plates (11) are symmetric with each other and are arranged close to the sealing cover (9).

3. The biogas slurry tanker spreading device according to claim 1, characterized in that: The lifting mechanism (3) includes a hinge seat (12) provided on the tanker body (1) and near the middle position of the storage tank body (2). A second hydraulic cylinder (13) is hinged to the hinge seat (12). The end of the telescopic rod of the second hydraulic cylinder (13) is hinged to the mounting and reinforcement plate (11) on the side wall of the storage tank body (2).

4. The biogas slurry tanker spreading device according to claim 1, characterized in that: The extraction mechanism (4) includes a fertilizer extraction pump (14) installed on the tanker body (1) and on the left side of the storage tank body (2). A fertilizer inlet pipe (15) and a fertilizer conveying pipe (16) are provided on the fertilizer extraction pump (14). The fertilizer conveying pipe (16) is connected to the upper side of the middle part of the storage tank body (2) in an inclined direction. A diversion pipe (17) communicating with the storage tank body (2) is provided on the fertilizer conveying pipe (16). The communication port of the diversion pipe (17) with the storage tank body (2) is near the rear end face of the storage tank body (2).

5. The biogas slurry tanker spreading device according to claim 2, characterized in that: A fertilizer guiding pipe (5) communicating with the inside of the storage tank body (2) is provided at the lower part of the sealing cover (9). A stop flow switch (18) for controlling the outflow of liquid is provided at the outer end of the fertilizer guiding pipe (5).

6. The biogas slurry tanker spreading device according to claim 1, characterized in that: The flow control pump (6) is a screw pump, and a corrugated pipe (19) installed on the fertilizer guiding pipe (5) is provided at the liquid inlet of the screw pump. A liquid outlet pipe (20) is provided at the liquid outlet of the flow control pump (6).

7. The biogas slurry tanker spreading device according to claim 1, characterized in that: The fertilizer spreading mechanism (7) includes a positioning and mounting frame (21) provided at the bottom of the tanker body (1) and extending out of the rear end of the tanker body (1), and further includes a main delivery pipe (22) connected to the flow control pump (6). The outer end of the main delivery pipe (22) is connected to a tee pipe (23), and auxiliary delivery pipes (24) mounted on the positioning and mounting frame (21) are respectively provided on the left and right sides of the tee pipe (23) along the horizontal direction. A plurality of fertilizer spreading openings (25) are arranged at intervals along the length direction of the tank body on the auxiliary delivery pipe (24).

8. The manure slurry tanker spreading device according to claim 7, wherein: The positioning and mounting frame (21) includes two fixed support frames (26) fixedly connected to the bottom of the tanker body (1). The two fixed support frames (26) are arranged at intervals left and right and extend out of the rear end of the tanker body (1). The body of the fixed support frame (26) extending out of the rear end of the tanker body (1) is arranged as an inclined surface with the length of the lower bottom edge greater than that of the upper edge. An inclined connecting plate (27) is attached to the inclined surfaces of the two fixed support frames (26). A fixed frame (28) arranged vertically and cooperating with the auxiliary delivery pipe (24) is provided at the rear side of the two fixed support frames (26).

9. The biogas slurry tanker spreading device according to claim 1, characterized in that: The sewage guiding plate (8) is a rectangular plate, and the upper edge of the rectangular plate is hinged to the rear end of the tanker body (1). The lower end surface of the sewage guiding plate (8) is attached to the inclined connecting plate (27) of the fertilizer spreading mechanism (7), and the lower end surface of the sewage guiding plate (8) is located above the fixed frame (28).

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