A tower fermentation equipment for organic fertilizer

Abstract

The invention discloses an organic fertilizer tower fermentation equipment, including a fermentation stirring device, a feeding device, a gas purification device and a control device. The fermentation stirring device is a cylindrical tower tank, a feeding port and an air outlet are arranged on the top plate of the tower tank, a vertical stirring shaft is arranged in the center of the tower tank, the upper end of the stirring shaft is connected to a low-speed rotating motor, the inner cavity of the tower tank is divided into upper and lower multi-layer stirring chambers by a plurality of partitions, the stirring shaft is radially provided with stirring arms in each layer of the stirring chamber, an annular air passage is arranged between the partition and the stirring shaft, a feeding hole is arranged on the partition, an air inlet and a discharge port are arranged on the bottom plate of the tower tank, and a conveyor is arranged below the discharge port. The fermentation equipment can make fermentation chambers of different numbers of layers according to demand, is flexible and convenient, has strong adaptability, occupies a small area, has a fast fermentation speed, and can complete the fermentation in only 7 to 10 days, saving manpower and labor, and having high efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of livestock and poultry excrement treatment, and in particular relates to organic fertilizer tower fermentation equipment. Background Art

[0002] Bio-organic fertilizer is a new type of fertilizer developed based on farmyard manure. It uses fast-decomposing bacteria to degrade livestock and poultry manure, and the high temperature generated during the fermentation process kills harmful pathogens and roundworm eggs, converts unstable substances into more stable humus to become bio-organic fertilizer, or decomposes and ferments food waste into organic fertilizer, or ferments river sludge, sewer sludge, etc. into organic fertilizer. The existing organic fertilizer fermentation method is to spread livestock and poultry manure on the ground, or spread food waste and sewer sludge on the ground, cover it with plastic cloth and ferment it for 15 to 20 days, then uncover the plastic cloth and turn the material over manually, turning it over every two days. The efficiency is very low, and this fermentation method occupies a large area and pollutes the environment. Summary of the invention

[0003] In order to overcome the deficiencies in the prior art, the present invention provides an organic fertilizer tower fermentation device.

[0004] The present invention is realized by the following technical scheme: an organic fertilizer tower fermentation equipment, comprising a fermentation stirring device, a feeding device, a gas purification device and a control device, wherein the fermentation stirring device is a cylindrical tower tank, a feeding port and an air outlet are arranged on the top plate of the tower tank, a vertical stirring shaft is arranged in the center of the tower tank, the upper end of the stirring shaft is connected to a low-speed rotating motor, the inner cavity of the tower tank is divided into upper and lower multi-layer stirring chambers by a plurality of partitions, the stirring shaft is radially provided with stirring arms in each stirring chamber, the stirring arms of each layer are symmetrically arranged relative to the stirring shaft, and the stirring arms are arranged It is placed on the partition with a gap between the partition, an annular air duct is arranged between the partition and the stirring shaft, a baffle is arranged above the annular air duct, each layer of the partition is provided with a drop hole, a maintenance detection hole and a material detector are arranged on the side wall of the stirring chamber, a thermometer is also arranged on the side wall of the stirring chamber, an air inlet and a discharge port are arranged on the bottom plate of the tower tank, and the lower end surfaces of the drop hole, the discharge port and the discharge port are provided with opening and closing doors, and the opening and closing doors are opened and closed by a hydraulic telescopic rod arranged on the wall of the tower tank, and the air inlet is connected to the high-pressure air pump.

[0005] In the above scheme, the feeding device is a closed chain conveyor chain, a loading tray is arranged on the conveyor chain, the conveyor chain is transmitted in a circular pipe, and the upper end of the conveyor chain is arranged at the unloading port.

[0006] In the above scheme, the gas purification device is arranged at the top of the tower tank, and the gas purification device includes an upright cylinder, two layers of mesh plates are arranged in the cylinder, and gas-water dispersion balls are placed on the mesh plates. The gas-water dispersion balls include hollow spheres, and a plurality of through holes are arranged on the surface of the spheres. The bottom of the cylinder is connected to a water tank, and an upper water pipe is arranged on the side of the cylinder. The lower end of the upper water pipe is connected to the water tank, and the upper end of the upper water pipe is respectively connected to the top of the gas-water dispersion ball, and an exhaust pipe is arranged on the top of the cylinder. An air inlet pipe is arranged at the bottom of the cylinder and is connected to the air outlet.

[0007] In the above scheme, the stirring arm is a hollow body, and the cross-section of the stirring arm is a wedge-shaped triangle, with its tip facing the direction of rotation, the rear end raised higher than the front end tip, the bottom surface and the upper surface of the partition have an angle of 3° to 5°, the rear end surface is provided with multiple through holes, and the bottom surface is provided with an air inlet hole.

[0008] In the above scheme, the top plate and the bottom plate of the tower tank are provided with a thermal insulation layer, and the outer surface of the tower tank body is also provided with a thermal insulation layer.

[0009] In the above scheme, a conveyor is arranged below the discharge port at the bottom of the tower tank.

[0010] In the above scheme, the tower tank, stirring shaft, stirring arm, partition, conveying pipeline and conveying chain are all made of stainless steel.

[0011] In the above scheme, the thermometer is arranged on an odd number of layers.

[0012] In the above solution, the stirring arms are staggered by 45° between two adjacent layers.

[0013] Compared with the prior art, the organic fertilizer tower fermentation equipment of the present invention has the following beneficial effects:

[0014] 1. The gas purification tank can effectively remove some harmful gases produced after the fermentation of organic fertilizer, reducing pollution to the environment.

[0015] 2. The air passage in the mixing tank is unobstructed, especially the gas passage is also set on the mixing arm, which can fully ferment the material and help the material dry.

[0016] 3. The fermentation equipment can produce fermentation chambers with different numbers of layers according to needs, which is flexible, convenient and adaptable.

[0017] 4. The fermentation equipment occupies a small area and has a fast fermentation speed. It only takes 7 to 10 days to complete the fermentation, saving manpower and labor and having high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a schematic structural diagram of an organic fertilizer tower fermentation equipment.

[0019] Figure 2 yes Figure 1 A partial enlarged view of the middle tower tank.

[0020] Figure 3 yes Figure 1 BB view in.

[0021] Figure 4 yes Figure 1 A magnified view of the gas purification device.

[0022] Figure 5 yes Figure 3 A magnified image of the Zhongqi water dispersion sphere.

[0023] Figure 6 yes Figure 1 AA section enlarged view in.

[0024] In the figure: 1. Gas purification device, 2. Low-speed rotating motor, 3. Feeding port, 4. Conveyor chain, 5. Conveying pipeline, 6. Tower tank, 7. Stirring shaft, 8. Stirring chamber, 9. Stirring arm, 10. Baffle, 11. Hydraulic telescopic rod, 12 Solid-liquid separator, 13. Hopper, 14. Loading tray, 15. Hydraulic pump, 16. Conveyor, 17. Bottom plate, 18. Feeding port, 19. Air inlet, 20. High-pressure air pump, 21. Control cabinet , 22. Top plate, 23. Insulation layer, 24. Air inlet, 25. Through hole, 26. Annular air duct, 27. Opening and closing door, 28. Material detector, 29. Thermometer, 30. Maintenance inspection hole, 31. Partition, 32. Air-water dispersion ball, 33. Mesh plate, 34. Air outlet, 35. Water tank, 36. Water pipe, 37. Exhaust pipe, 38. Dropping hole, 39. Cylinder, 40. Through hole, 41. Bottom, 42. Shower. DETAILED DESCRIPTION

[0025] The following is a further description of an organic fertilizer tower fermentation device of the present invention in conjunction with the accompanying drawings and specific embodiments:

[0026] Figure 1 It is a structural schematic diagram of an organic fertilizer tower fermentation equipment of the present invention. Figure 2 yes Figure 1 A partial enlarged view of the middle tower tank. Figure 3 yes Figure 1 In the BB view, Figure 4 yes Figure 1 A magnified view of the gas purification device. Figure 5 yes Figure 3 A magnified image of the Zhongqi water dispersion ball. Figure 6 yes Figure 1AA sectional enlarged view in the figure. In the figure, the organic fertilizer tower fermentation equipment includes a fermentation stirring device, a feeding device, a gas purification device and a control device. The fermentation stirring device is a cylindrical tower tank 6. The top plate 22 of the tower tank 6 is provided with a feeding port 3 and an air outlet 34. A vertical stirring shaft 7 is provided in the center of the tower tank 6. The upper end of the stirring shaft 7 is connected to a low-speed rotating motor 2. The inner cavity of the tower tank 6 is divided into 6 upper and lower stirring chambers 8 by 5 partitions. The stirring shaft 7 is provided with stirring arms 9 in each stirring chamber along the radial direction. The stirring arms 9 are symmetrically arranged relative to the stirring shaft 7. The stirring arms 9 are arranged between the partitions 31. There is a gap between the partition 31 and the stirring shaft 7, and an annular air passage 26 is arranged between the partition 31 and the stirring shaft 7, and a baffle 10 is arranged above the annular air passage 26. Each layer of the partition 31 is provided with a material drop hole 38. The stirring arm 9 is a hollow body, and the cross section of the stirring arm 9 is a wedge-shaped triangle, with its tip facing the direction of rotation, the bottom surface 41 tilted forward, and the rear end is raised higher than the front tip. The bottom surface 41 and the upper surface of the partition 31 have an angle of 3° to 5°, so that the stirring arm will reduce friction during stirring. The rear end surface is provided with a plurality of through holes 25, and the bottom surface is provided with an air inlet 24. The gas coming up from below will pass through the cavity of the stirring arm and then blow out from the through hole 25, which can better dry the material turned up by the stirring arm, and the two adjacent layers of the stirring arm 9 are staggered by 45°. A maintenance detection hole 30 and a material detector 28 are provided on the side wall of the mixing chamber 8. The material detector 28 is used to detect the amount of material in the mixing chamber. A thermometer 29 is also provided on the side wall of the mixing chamber 8 to detect the temperature of the material. The thermometer is set on the 1st, 3rd and 5th layers. An air inlet 19 and a discharge port 18 are provided on the bottom plate 17 of the tower tank 6. The lower end surfaces of the discharge port 3, the discharge hole 38 and the discharge port 18 are all provided with an opening and closing door 27. The opening and closing door 27 is connected to the hydraulic telescopic rod 11. The opening and closing door 27 is opened and closed by the hydraulic telescopic rod 11 set on the wall of the tower tank. The air inlet 19 is connected to the high-pressure air pump 20 to supply 80°C hot air into the tower tank. A conveyor 16 is provided below the discharge port 18 at the bottom of the tower tank.

[0027] The feeding device is a closed chain conveyor chain 4, on which a loading plate 14 is arranged. The conveyor chain is transmitted in a circular conveying pipe 5. The upper end of the conveyor chain 4 is arranged above the discharge port 3. The solid-liquid separator 12 removes moisture from the material in the material pool and drops it into the hopper 13. The conveyor chain 4 delivers the material to the tower tank 6.

[0028] The gas purification device 1 is arranged at the top of the tower tank 6. The gas purification device 1 includes an upright cylinder 39. Two layers of mesh plates 33 are arranged in the cylinder 39. A gas-water dispersion ball 32 is placed on the mesh plates 33. The gas-water dispersion ball is a hollow sphere with a plurality of through holes 40 arranged on the surface of the sphere. The bottom of the cylinder 39 is connected to a water tank 35. An upper water pipe 36 is arranged on the side of the cylinder 39. The lower end of the upper water pipe 36 is connected to the water tank 35. The upper end of the upper water pipe 36 is respectively connected to the shower 42 above the two layers of gas-water dispersion balls. An exhaust pipe 37 is arranged at the top of the cylinder. An air inlet pipe is arranged at the bottom of the cylinder 39 to communicate with the air outlet 34. The exhaust gas generated in the tower tank enters the cylinder 39 through the air inlet pipe. The impurities in the exhaust gas are filtered out through two-stage spray purification, and the unpolluted gas is discharged through the exhaust pipe 37.

[0029] The top plate 22 and the bottom plate 17 of the tower tank are provided with a heat-insulating layer 23, and the outer surface of the tower tank body is also provided with a heat-insulating layer 23. The tank body, the stirring shaft 7, the stirring arm 9, the partition 31, the conveying pipeline 5, and the conveying chain 4 of the tower tank 6 are all made of stainless steel.

[0030] The solid-liquid separator 12 in the feeding device removes the moisture from the material pool and then drops it into the hopper 13. The conveyor chain 4 sends the material to the top of the tower tank 6 and drops it into the topmost sixth-layer mixing chamber from the discharge port 3. At this time, the opening and closing doors of each layer of the partition are closed. When the material is full, the material detector 28 transmits a signal to the control cabinet 21, and the control cabinet issues an instruction, the feeding device stops feeding, and the opening and closing door below the discharge port 3 is driven by the hydraulic pump 15 to extend the hydraulic telescopic rod to close the discharge port. The stirring shaft 7 starts to rotate, rotating for 10 minutes every 10 minutes, and the stirring arm 9 fully stirs the material. The hot air below comes up from the annular airway 26 to make the material fully fermented. The thermometer 29 detects the temperature in the mixing chamber in real time. On the second day, the opening and closing door of the material drop hole below the mixing chamber of the sixth layer is controlled by the hydraulic pump 15 to open, and the material drops into the mixing chamber of the fifth layer, and then the opening and closing door of the material drop hole below the mixing chamber of the sixth layer is closed, and the heating and stirring are repeated. At this time, the mixing chamber on the sixth layer is empty, and the door of the discharge port 3 can be opened to start the feeding device to transport materials to the tower tank. On the third day, the materials on the fifth layer are dropped to the fourth layer, and the cycle is repeated to fully ferment the materials. After the fermentation is completed, the door of the discharge port 18 is opened, and the fermented materials fall onto the conveyor 16 and are transported away by car.

[0031] The fermentation equipment can produce fermentation rooms with different numbers of layers according to needs. It is flexible and convenient, has strong adaptability, occupies a small area, and has a fast fermentation speed. It only takes 7 to 10 days to complete the fermentation, saving manpower and labor and having high efficiency.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. An organic fertilizer tower fermentation equipment, characterized in that: The invention comprises a fermentation stirring device, a feeding device, a gas purification device and a control device. The fermentation stirring device is a cylindrical tower tank. A feeding port and an air outlet are arranged on the top plate of the tower tank. A vertical stirring shaft is arranged in the center of the tower tank. The upper end of the stirring shaft is connected to a low-speed rotating motor. The inner cavity of the tower tank is divided into upper and lower multi-layer stirring chambers by multiple partitions. The stirring shaft is radially provided with stirring arms in each stirring chamber. The stirring arms of each layer are symmetrically arranged relative to the stirring shaft. The stirring arms are arranged on the partitions and a gap is left between the partitions. An annular air passage is arranged between the partitions and the stirring shaft. A baffle is arranged above the annular air passage. A feeding hole is arranged on each layer of the partitions. A maintenance detection hole and a material detector are arranged on the side wall of the stirring chamber. A thermometer is also arranged on the side wall of the stirring chamber. An air inlet is arranged on the bottom plate of the tower tank. and a discharge port, the discharge port, the drop hole and the lower end faces of the discharge port are all provided with opening and closing doors, the opening and closing doors are opened and closed by a hydraulic telescopic rod arranged on the wall of the tower tank, the air inlet is connected to the high-pressure air pump, the feeding device is a closed chain-type conveyor chain, a loading tray is arranged on the conveyor chain, the conveyor chain is transmitted in a circular pipe, the upper end of the conveyor chain is arranged at the discharge port, the gas purification device is arranged at the top of the tower tank, the gas purification device includes an upright cylinder, two layers of mesh plates are arranged in the cylinder, gas-water dispersion balls are placed on the mesh plates, the gas-water dispersion balls include hollow spheres, a plurality of through holes are arranged on the surface of the spheres, the bottom of the cylinder is connected to a water tank, an upper water pipe is arranged on the side of the cylinder, the lower end of the upper water pipe is connected to the water tank, the upper ends of the upper water pipes are respectively connected to the top of the gas-water dispersion balls, and an exhaust pipe is arranged on the top of the cylinder. An air inlet pipe connected to the air outlet is arranged at the bottom of the cylinder. The stirring arm is a hollow body. The cross section of the stirring arm is a wedge-shaped triangle, with its tip facing the direction of rotation, the rear end raised higher than the front end tip, the bottom surface and the upper surface of the partition have an angle of 3° to 5°, the rear end surface is provided with multiple through holes, and the bottom surface is provided with an air inlet.

2. A kind of organic fertilizer tower fermentation equipment according to claim 1, characterized in that: The top plate and the bottom plate of the tower tank are provided with a heat-insulating layer, and the outer surface of the tower tank body is also provided with a heat-insulating layer.

3. A kind of organic fertilizer tower fermentation equipment according to claim 1, characterized in that: A conveyor is arranged below the discharge port at the bottom of the tower tank.

4. A kind of organic fertilizer tower fermentation equipment according to claim 1, characterized in that: The tower tank, stirring shaft, stirring arm, partition, conveying pipeline and conveying chain are all made of stainless steel.

5. A kind of organic fertilizer tower fermentation equipment according to claim 1, characterized in that: The thermometers are arranged on an odd number of layers.

6. A kind of organic fertilizer tower fermentation equipment according to claim 1, characterized in that: The stirring arms are staggered by 45 degrees between two adjacent layers.

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