A multi-layer fermentation device for livestock and poultry manure

Abstract

The present invention discloses a multi-layer fermentation device for livestock and poultry manure, comprising a heat-insulating outer cover; a plurality of layers of dehydration conveyor belts are distributed inside the heat-insulating outer cover, each layer of the dehydration conveyor belts comprises a conveyor belt assembly, the conveyor belt assembly comprises an air outlet air pipe and a conveyor belt, a plurality of airflow return suction heads are distributed inside the conveyor belt; an air suction port is provided on the airflow return suction head; a plurality of the airflow return suction heads are connected to an air suction main pipe; a buffering and evenly spreading device is distributed between two adjacent layers of dehydration conveyor belts. The present invention has the advantages of good fermentation effect, good quality, greatly shortening the fermentation cycle, and reducing production costs.

Description

Technical Field

[0001] The invention relates to the technical field of livestock and poultry manure treatment, and in particular to a livestock and poultry manure multi-layer fermentation device. Background Art

[0002] After dehydration and drying, livestock and poultry manure is mixed with a certain proportion of yeast and then enters the fermentation device for aerobic fermentation. At present, in order to save space, multiple layers are generally used. However, in actual applications, the fermentation quality of the same material in different devices varies greatly. One is mainly the uniformity of the air circulation ventilation system, the other is mainly the temperature control problem, and the last very important problem is how to effectively control the dispersion of the falling material when the upper material is transferred to the lower layer. In traditional multi-layer fermentation devices, after the material is transferred between the layers, because the livestock and poultry manure itself is very soft, once it falls to the lower layer, it will be close to the lower conveyor belt and piled up, which cannot be effectively dispersed, which is not conducive to aerobic fermentation. The above points jointly determine the quality of material fermentation in a multi-layer fermentation device for livestock and poultry manure. Summary of the invention

[0003] In view of the above technical problems, the present invention provides a multi-layer fermentation device for livestock and poultry manure with good fermentation effect.

[0004] To achieve the above object, the present invention adopts the following technical solution:

[0005] A multi-layer fermentation device for poultry and livestock manure, comprising a heat-insulating outer cover; a plurality of layers of dehydration conveyor belts are distributed inside the heat-insulating outer cover, each layer of the dehydration conveyor belts comprises a conveyor belt assembly, the conveyor belt assembly comprises an air outlet duct and a conveyor belt, the two ends of the air outlet duct are fixed on the side walls of the heat-insulating outer cover, and one end thereof is connected to an air intake main pipe; a plurality of ventilation holes are provided in the middle of the duct wall of the air outlet duct; the air outlet ducts are distributed above the conveyor belt of the conveyor belt assembly, and a plurality of the air outlet ducts are evenly distributed along the moving direction of the conveyor belt; a plurality of air flow return suction heads are also distributed on the inner side of the conveyor belt; an air suction port is provided on the air flow return suction head; a plurality of the air flow return suction heads are connected to an air suction main pipe; a buffer spreading device is also distributed between two adjacent layers of dehydration conveyor belts.

[0006] Furthermore, the buffering and spreading device includes a spreading rotor and a driving motor; the rotating shaft of the driving motor is connected to one side of the spreading rotor to provide rotational force thereto; the other side of the spreading rotor is connected to the side wall of the thermal insulation outer cover through a rotating bearing; a plurality of spreading circular tubes are distributed in the middle part of the spreading rotor; and the plurality of spreading circular tubes are distributed alternately in a circular shape.

[0007] Furthermore, the arc length of the gap between two adjacent sharing circular tubes is 8 to 20 mm.

[0008] Furthermore, the diameter of the distribution circular tube is 3 to 6 mm or 10 to 20 mm.

[0009] Furthermore, the evenly spreading rotating body includes a left disc and a right disc body; the two ends of the spreading circular tube are rotatably connected to the left disc and the right disc body respectively through rotating bearings; the right disc body is also provided with a cavity; the right end of the spreading circular tube is also connected to a pulley; the pulleys of several spreading circular tubes are connected by belts to transmit power; the pulleys are distributed in the cavity; a transmission motor is also fixed on the right side wall of the cavity; the rotating shaft of the transmission motor is tightly connected to the center of one of the spreading circular tubes; the rotation direction of the transmission motor is opposite to the rotation direction of the drive motor; the rotation direction of the drive motor is opposite to the conveying direction of the upper material in the fermentation device.

[0010] Furthermore, the cross-section of the airflow return suction head is a nearly square structure, with an air suction cavity opened at its bottom, and a plurality of laterally distributed support platforms with a nearly "T"-shaped cross-section are provided in the upper middle part, and the lower part of the support platforms is a trapezoidal structure; the support platforms are distributed at intervals; the lower part of the support platforms is communicated with the air suction cavity; a plurality of air suction ports are opened in the middle part of the support platforms; the lower part of the air suction cavity is connected to the air suction main pipe through a branch pipe; and the airflow return suction head is distributed close to the inner side surface of the dehydration conveyor belt.

[0011] Furthermore, the airflow return suction head is made of aluminum material.

[0012] Furthermore, the air outlet pipe includes an outer air intake pipe and an inner air intake pipe, the two ends of the outer air intake pipe are sealed, and its lumen is a conical lumen; the inner air intake pipe is inserted from the large-diameter end of the conical lumen and extends to the other end close to the conical lumen, and is sealed and connected to the outer air intake pipe; a plurality of the aforementioned air permeable holes are opened in the middle of the side wall of the outer air intake pipe.

[0013] Furthermore, the air inlet inner pipe of the air outlet pipe is also distributed with heating wires.

[0014] Furthermore, a plurality of the air outlet pipes form an air outlet pipe row, and the air outlet pipe row and the air flow return suction head are staggered in distribution up and down.

[0015] The beneficial effects of the present invention compared with the prior art are as follows:

[0016] (1) By adopting the related structure and distribution method of the air outlet duct and the air flow return head of the present invention, the air can be slowly dispersed from the upper middle part and then slowly returned from both sides of the conveyor belt, so as to achieve maximum contact between the airflow (oxygen) and the raw materials, significantly improve the aerobic fermentation effect, improve the fermentation efficiency and quality, and shorten the fermentation cycle.

[0017] (2) The air outlet duct structure of the present invention can decelerate the strong airflow of the air inlet inner duct and then slowly disperse it from the air permeable holes, thereby preventing the airflow from directly spraying onto the surface of the livestock and poultry manure raw materials, preventing the surface of the raw materials from being dried and affecting the later fermentation.

[0018] (3) The air outlet pipes provided with heating wires are distributed in the topmost dehydration conveyor belt, while the air outlet pipes used in the other lower dehydration conveyor belts are not provided with the heating wires. All the air outlet pipes can be connected to an air intake main pipe, which only needs to let in regular air; the air outlet pipes of the upper layer are provided with heating wires, which can heat up the materials just fed into the fermentation device, further evaporate the water, and ferment, while the temperature of the lower layer only needs to be maintained by the heat generated during the fermentation process.

[0019] (4) The spreading rotor of the present invention can firstly reduce the contact and adhesion with sticky feces and dirt by adopting a spreading circular tube with a diameter of 3 to 6 mm. By setting the spreading rotor to be rotatable, it can achieve a spreading surface of the falling materials relative to the radius length of the spreading rotor, effectively preventing the stacking of materials and achieving a good spreading effect. The spreading circular tube with a diameter of 3 to 6 mm and a diameter of 10 to 20 mm must be combined with a rotatable spreading circular tube structure, and the rotation direction of the transmission motor is opposite to that of the drive motor, which can significantly improve the spreading effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a side cross-sectional view of the present invention;

[0021] Figure 2 is a front cutaway view of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the air outflow duct of the present invention;

[0023] Figure 4 It is another structural schematic diagram of the air outflow duct of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the airflow return suction head of the present invention;

[0025] Figure 6 The present invention Figure 5 AA section view;

[0026] Figure 7 is a side view of the evenly distributed rotating body of the present invention;

[0027] Figure 8 The present invention Figure 7 BB section diagram;

[0028] Fig. 9It is an external side view of the present invention. DETAILED DESCRIPTION

[0029] like Figures 1 to 9As shown, a multi-layer fermentation device for livestock manure includes a heat-insulating outer cover 1; a plurality of layers of dehydration conveyor belts are distributed in the heat-insulating outer cover 1, and each layer of the dehydration conveyor belts includes a conveyor belt assembly, and the conveyor belt assembly includes an air outlet pipe 4 and a conveyor belt 5. The heat-insulating outer cover 1 is fixed on a conveyor belt bracket 11 to cover the conveyor belts, leaving only a sufficient size of inlet and outlet gaps for the feed inlet and the feed outlet, and of course a bottom plate cover 7 is also provided; a plurality of air outlet pipes 4 are distributed in the heat-insulating outer cover 1, and both ends of the air outlet pipes 4 are fixed on the side walls of the heat-insulating outer cover 1, and one end of the air outlet pipes 4 is connected to the air intake main pipe 3; the pipe of the air outlet pipe 4 A plurality of small air holes 4-1 are provided in the middle of the wall; the air outlet pipe 4 is distributed above the conveyor belt 5 of the conveyor belt assembly, and a plurality of the air outlet pipes 4 are evenly distributed along the moving direction of the conveyor belt 5; the air outlet pipe 4 of this embodiment includes an outer air intake pipe 4-4 and an inner air intake pipe 4-3, the two ends of the outer air intake pipe 4-4 are sealed, and its lumen is a conical lumen 4-2; the inner air intake pipe 4-3 is inserted from the large-diameter end of the conical lumen and extends to the other end close to the conical lumen, and is sealed and connected to the outer air intake pipe 4-4; a plurality of small air holes 4-1 are provided in the middle of the side wall of the outer air intake pipe 4-4. A plurality of air flow return suction heads 9 are also distributed on the inner side of the conveyor belt 5; an air intake port 9-1 is provided on the air flow return suction head 9; in order to improve the heat transfer effect, the air flow return suction head of this embodiment is made of aluminum material, and of course, it can also be made of other alloy materials with good heat transfer effect. The cross-section of the airflow return suction head 9 of this embodiment is a nearly square structure, with an air suction cavity 9-3 at the bottom, and a plurality of support platforms 9-2 with a cross-section nearly in the shape of a "T" are arranged in the middle of the upper part, and the lower part of the support platform 9-2 is a trapezoidal structure; the support platforms 9-2 are spaced apart; the lower part of the support platform 9-2 is connected to the air suction cavity 9-3; the middle part of the support platform 9-2 is provided with a plurality of air suction ports 9-1; the lower part of the air suction cavity is connected to the air suction main pipe 10 through a branch pipe 6; the top of the airflow return suction head 9 is distributed close to the inner side of the conveyor belt. Of course, in order to ensure the support of the conveyor belt 5, a conveyor belt support plate 16 is also arranged on its inner side to support its load-bearing capacity. The air suction main pipe 10 is connected to the external air extraction pipe through an outer pipe 8. The air outlet pipes of this embodiment are distributed through three (of course, more than one) air outlet pipes to form an exhaust pipe row, and the exhaust pipe row and the airflow return head are staggered and distributed up and down to improve the contact effect of the hot air flow on the livestock and poultry manure raw materials, and more quickly take away the excess moisture on the surface of the livestock and poultry manure raw materials to reduce the required surface moisture content. The present invention can also prevent the direct impact of the hot air flow on the livestock and poultry manure raw materials, causing local drying of the surface of the livestock and poultry manure raw materials, and affecting the later livestock and poultry manure. The air outlet pipe 4 has another model, that is, a heating wire 13 is also distributed in its air inlet inner pipe.The air outlet pipes 4 provided with heating wires are distributed in the uppermost dehydration conveyor belt, while the air outlet pipes used in the other lower dehydration conveyor belts are not provided with the heating wires. All the air outlet pipes can be connected to an air intake main pipe, which only needs to be fed with regular air; and the air outlet pipes of the upper layer are provided with heating wires, which can heat up the materials just fed into the fermentation device, further evaporate the water and ferment, while the temperature of the lower layer can be maintained only by the heat generated during the fermentation process. The airflow return suction head is made of aluminum material.

[0030] In order to prevent the stacking phenomenon that generally occurs when transferring materials between the upper and lower layers, the present invention also has a buffering and spreading device distributed between two adjacent layers of dewatering conveyor belts. The buffering and spreading device includes a spreading rotor 14 and a driving motor 15; the rotating shaft of the driving motor 15 is connected to one side of the spreading rotor to provide rotational force thereto; the other side of the spreading rotor is connected to the side wall of the thermal insulation outer cover through a rotating bearing; a plurality of spreading circular tubes 14-6 are distributed in the middle of the spreading rotor; a plurality of the spreading circular tubes 14-6 are distributed alternately in a circular shape. The arc length of the gap between two adjacent spreading circular tubes is 8 to 20 mm, preferably 8 to 13 mm. Furthermore, the diameter of the spreading circular tube can be selected from a small tube of 3 to 6 mm or a large tube of 10 to 20 mm. The spreading rotating body 14 includes a left disc and a right disc body; the two ends of the spreading circular tube 14-6 are rotatably connected to the left disc and the right disc body through rotating bearings 14-7, 14-5 respectively; the right disc body is also provided with a cavity 14-2; the right end of the spreading circular tube 14-6 is also connected to a pulley 14-3; the pulleys 14-3 of several spreading circular tubes 14-6 are connected by belts 14-4 to transmit power; the pulleys 14-3 are distributed in the cavity 14-2; a transmission motor 14-1 is also fixed on the right side wall of the cavity 14-2, which will rotate with the whole of the spreading rotating body; the rotating shaft of the transmission motor 14-1 is tightly connected to the center of one of the spreading circular tubes 14-6; the rotation direction of the transmission motor 14-1 is opposite to that of the driving motor 15. The rotation direction of the driving motor is opposite to the conveying direction of the upper material in the fermentation device (such as Figure 1 When in use, the livestock manure mixed with yeast generally enters from the top material inlet 17 of the fermentation device and then ferments.

Claims

1. A multi-layer fermentation device for livestock and poultry manure, characterized in that: It comprises a heat-insulating outer cover; a plurality of layers of dehydration conveyor belts are distributed in the heat-insulating outer cover, each layer of the dehydration conveyor belts comprises a conveyor belt assembly, the conveyor belt assembly comprises an air outlet pipe and a conveyor belt, the two ends of the air outlet pipe are fixed on the side walls of the heat-insulating outer cover, and one end thereof is connected to an air intake main pipe; a plurality of air permeable holes are provided in the middle of the pipe wall of the air outlet pipe; the air outlet pipes are distributed above the conveyor belt of the conveyor belt assembly, and a plurality of the air outlet pipes are evenly distributed along the moving direction of the conveyor belt; a plurality of air flow return suction heads are also distributed on the inner side of the conveyor belt; an air suction port is provided on the air flow return suction head; a plurality of the air flow return suction heads are connected to an air suction main pipe; a buffer evenly spreading device is also distributed between two adjacent layers of dehydration conveyor belts; The cross-section of the airflow return suction head is a nearly square structure, with an air suction cavity at the bottom, and a plurality of transversely distributed support platforms with a nearly "T"-shaped cross-section are provided in the middle of the upper part, and the lower part of the support platform is a trapezoidal structure; the support platforms are distributed at intervals; the lower part of the support platform is connected to the air suction cavity; a plurality of air suction ports are provided in the middle of the support platform; the lower part of the air suction cavity is connected to the air suction main pipe through a branch pipe; the airflow return suction head is distributed close to the inner side surface of the dehydration conveyor belt; The air outlet pipe includes an outer air intake pipe and an inner air intake pipe. Both ends of the outer air intake pipe are sealed, and its lumen is a conical lumen. The inner air intake pipe is inserted from the large-diameter end of the conical lumen and extends to the other end close to the conical lumen, and is sealed and connected to the outer air intake pipe. A plurality of small air permeable holes are opened in the middle of the side wall of the outer air intake pipe.

2. A multi-layer fermentation device for livestock manure according to claim 1, characterized in that: The buffering and spreading device includes a spreading rotor and a driving motor; the rotating shaft of the driving motor is connected to one side of the spreading rotor to provide rotational force thereto; the other side of the spreading rotor is connected to the side wall of the thermal insulation outer cover via a rotating bearing; a plurality of spreading circular tubes are distributed in the middle of the spreading rotor; and the plurality of spreading circular tubes are distributed alternately in a circular shape.

3. A multi-layer fermentation device for livestock manure according to claim 2, characterized in that: The arc length of the gap between two adjacent sharing circular tubes is 8 to 20 mm.

4. A multi-layer fermentation device for livestock manure according to claim 2, characterized in that: The diameter of the distribution circular tube is 3-6 mm or 10-20 mm.

5. The multi-layer fermentation device for livestock manure according to claim 2, characterized in that: The evenly spreading rotating body includes a left disc and a right disc body; the two ends of the spreading circular tube are rotatably connected to the left disc and the right disc body respectively through rotating bearings; the right disc body is also provided with a cavity; the right end of the spreading circular tube is also connected with a pulley; the pulleys of several spreading circular tubes are connected by belts to transmit power; the pulleys are distributed in the cavity; a transmission motor is also fixed on the right side wall of the cavity; the rotating shaft of the transmission motor is tightly connected to the center of one of the spreading circular tubes; the rotation direction of the transmission motor is opposite to the rotation direction of the drive motor; the rotation direction of the drive motor is opposite to the conveying direction of the upper material in the fermentation device.

6. The multi-layer fermentation device for livestock manure according to claim 1, characterized in that: The airflow return suction head is made of aluminum material.

7. The multi-layer fermentation device for livestock manure according to claim 1, characterized in that: The air inlet inner pipe of the air outlet pipe is also distributed with heating wires.

8. The multi-layer fermentation device for livestock manure according to claim 1, characterized in that: A plurality of the air outlet pipes form an exhaust pipe row, and the exhaust pipe row and the air flow return suction head are staggered and distributed with respect to each other up and down.

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