Fermentation device for fertilizer production and processing

Abstract

The application discloses a fermentation device for fertilizer production and processing, and belongs to the field of fertilizer production. The fermentation device for fertilizer production and processing comprises a fermentation tank, a stirring shaft is rotationally connected in the fermentation tank, a spiral disc is fixedly connected to the outer wall of the stirring shaft, a mounting box is fixedly connected to the top of the fermentation tank, a mounting frame is fixedly connected to the top of the mounting box, a driving motor is fixedly connected to the top of the mounting frame, and the output shaft of the driving motor is fixedly connected to the top end of the stirring shaft. The spiral disc, the bottom sweeping rod and the wall sweeping rod are driven to rotate by the stirring shaft, the compost material in the fermentation tank is effectively stirred, the internal material is uniformly mixed, the heat exchange efficiency inside and outside the material pile is accelerated, the fermentation effect is improved, the excessive leachate generated in the fermentation process is filtered and discharged, the water content in the fermentation tank is reduced, the porosity between the materials is improved, the oxygen is facilitated to contact the material in the material pile, and the composting effect is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fertilizer production, in particular to a fermentation device for fertilizer production and processing. BACKGROUND

[0002] Fertilizer is a substance used to provide nutrients for plant growth, which is roughly divided into organic fertilizer and inorganic fertilizer, and organic fertilizer is made by fermenting organic waste. Fermentation can convert organic waste into stable and efficient organic fertilizer. Fermentation can not only decompose complex organic matter, but also kill pathogens and weed seeds, thereby improving the safety and effectiveness of the fertilizer.

[0003] At present, when organic waste is fermented, a stacking fermentation method is usually used. However, during the stacking process, the temperature difference between the inside and outside of the stack is large, and the contact degree with oxygen is also different, thereby reducing the composting effect. In addition, a certain amount of leakage liquid is generated during the composting fermentation process, and too much leakage liquid mixed in the material will reduce the porosity between the materials, so that oxygen cannot be well contacted with the material, thereby reducing the composting quality. Therefore, a fermentation device for fertilizer production and processing is proposed. SUMMARY

[0004] The purpose of the present application is to solve the problems in the prior art that the temperature difference between the inside and outside of the stack is large, and the contact degree with oxygen is also different, thereby reducing the composting effect; and the leakage liquid generated during the fermentation process will hinder the contact between oxygen and the material, thereby reducing the composting quality. A fermentation device for fertilizer production and processing is proposed.

[0005] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0006] A fermentation device for fertilizer production and processing, comprising a fermentation tank, a rotating shaft is connected in the fermentation tank, a spiral disc is fixedly connected on the outer wall of the rotating shaft, an installation box is fixedly connected on the top of the fermentation tank, an installation frame is fixedly connected on the top of the installation box, a driving motor is fixedly connected on the top of the installation frame, the output shaft of the driving motor is fixedly connected with the top end of the rotating shaft, a speed reducer is arranged on the output shaft of the driving motor, further comprising: a liquid discharge assembly, which is arranged in the fermentation tank and is used for discharging the liquid generated by the fermentation of the fertilizer in the fermentation tank; an oxygen increasing assembly, which is arranged in the fermentation tank and is used for introducing airflow into the fermentation tank to increase the oxygen content.

[0007] In order to improve the dryness of the fermentation of fertilizer, preferably, the drainage assembly comprises a sealing ring fixed at the bottom of the fermentation tank, a rotating ring rotatably connected in the sealing ring, a bottom cleaning rod fixedly connected on the side wall of the rotating ring, the bottom cleaning rod slidingly abutting the bottom of the inner cavity of the fermentation tank, a bottom filter screen fixedly connected on the side wall of the bottom cleaning rod, a wall cleaning rod fixedly connected between the top of the rotating ring and the upper portion of the side wall of the stirring shaft, the wall cleaning rod slidingly abutting the side wall of the inner cavity of the fermentation tank, a side filter screen fixedly connected on the side wall of the wall cleaning rod and communicating with the inner cavity of the sealing ring, the inner cavities of the bottom cleaning rod and the wall cleaning rod communicating with the inner cavity of the rotating ring, and a drainage pipe fixedly connected at the bottom of the side wall of the fermentation tank and communicating with the inner cavity of the sealing ring.

[0008] Further, the bottom cleaning rod and the wall cleaning rod are symmetrically provided with two groups, and the bottom filter screens provided on the two groups of bottom cleaning rods are located on the rotating pressure side of the bottom cleaning rod.

[0009] In order to improve the fermentation efficiency, preferably, the oxygen increasing assembly comprises two groups of piston boxes fixed on the two sides of the mounting box and communicating with the upper cavity of the mounting box, a spiral disc provided with a plurality of oxygen increasing holes in the lower side wall and a ventilation groove in the inner portion, the oxygen increasing holes and the ventilation groove communicating with each other, the ventilation groove and the inner cavity of the stirring shaft communicating with each other, the inner cavity of the stirring shaft and the lower cavity of the mounting box communicating with each other, an air outlet pipe fixedly connected at the bottom of the piston box and communicating with the lower cavity of the mounting box, the other end of the air outlet pipe communicating with the lower cavity of the mounting box, a one-way valve provided in the air outlet pipe, and an air charging part provided in the piston box and guiding the airflow into the lower cavity of the mounting box.

[0010] Further, the air charging part comprises a piston plate slidingly connected in the piston box, a limiting strip fixedly connected at the bottom of the side of the inner cavity of the piston box close to the stirring shaft, a first spring fixedly connected between the side of the piston plate away from the stirring shaft and the inner wall of the piston box, magnetic plates fixedly connected on the two sides of the stirring shaft in the mounting box, and the magnetic plates and the piston plate magnetically repelling each other.

[0011] In order to improve the filtration liquid discharge efficiency, preferably, an air inlet pipe is fixedly connected and communicated between the two piston boxes, the other end of the air inlet pipe communicating with the top of the inner cavity of the drainage pipe, and a one-way valve provided in the air inlet pipe.

[0012] In order to improve the filtering effect of the side filter screen, preferably, the inner top of the fermentation tank is fixedly connected with an air pressure box, an air pressure plate is slidably connected in the air pressure box, a second spring is fixedly connected between the top of the air pressure plate and the inner top of the air pressure box, an arc-shaped plate is fixedly connected to the bottom of the air pressure plate, the top of the air pressure box is fixedly and communicatively connected with a first air pipe, the other end of the first air pipe is in communication with the inner cavity of the air inlet pipe, the sidewall of the air pressure box is fixedly and communicatively connected with a second air pipe, the other end of the second air pipe is in communication with the lower cavity of the mounting box, and a one-way valve is arranged in the first air pipe and the second air pipe.

[0013] In order to facilitate discharging, preferably, discharge hoppers are fixedly connected to the two sides of the bottom of the fermentation tank, discharge grooves are formed in the two sides of the bottom of the fermentation tank, the discharge grooves are in communication with the discharge hoppers, and a plugging part for controlling the opening and closing of the discharge grooves is arranged on the discharge hoppers.

[0014] Further, the plugging part comprises two groups of threaded rods with opposite threads, one end of each of the two groups of threaded rods is rotatably connected to the outer wall of the discharge hoppers on the two sides, a double-head motor is fixedly connected to the bottom of the fermentation tank, the other end of each of the two groups of threaded rods is fixedly connected to the rotating shaft on the two sides of the double-head motor, a plugging plate is threadedly sleeved on each of the threaded rods on the two sides, the plugging plate is inserted into the discharge hoppers, the plugging plate is attached to the bottom of the output end of the discharge grooves, and the outer diameter of the plugging plate is greater than the inner diameter of the discharge grooves.

[0015] Compared with the prior art, the present application provides a fermentation device for fertilizer production and processing, which has the following advantages:

[0016] 1. The fermentation device for fertilizer production and processing drives the spiral disc, the bottom sweeping rod and the wall sweeping rod to rotate through the stirring shaft, effectively stirs the compost materials in the fermentation tank, uniformly mixes the internal materials, accelerates the heat exchange efficiency inside and outside the material pile, improves the fermentation effect, filters and discharges the excess leachate generated during the fermentation process, reduces the water content in the fermentation tank, improves the porosity between the materials, facilitates the contact between oxygen and the materials in the material pile, and ensures the composting effect.

[0017] 2. The fermentation device for fertilizer production and processing continuously introduces oxygen-containing gas flow into the material pile during the material stirring process through the repelling action of the magnetic plate and the piston plate and the arrangement of the first spring, ensures sufficient oxygen supply, uniformly contacts the materials in the material pile with oxygen, accelerates the fermentation efficiency, improves the fertilizer quality, and can generate a negative pressure suction effect in the exhaust pipe to make the leachate generated during fermentation flow quickly to this place, improving the liquid discharge efficiency.

[0018] 3、The fermentation device for fertilizer production and processing, through the contact action of the wall scanning rod and the arc-shaped plate, first makes the wall scanning rod itself produce vibration effect, vibrates and cleans the side filter screen, avoids the blockage of the side filter screen, improves the permeability of the side filter screen, and then cooperates with the setting of the second spring, improves the effect of oxygenation in the material pile and the absorption and discharge of percolate. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a front view overall structure schematic diagram of the fermentation device for fertilizer production and processing provided by the present application.

[0020] Figure 2 It is a bottom structure schematic diagram of the fermentation tank of the fermentation device for fertilizer production and processing provided by the present application.

[0021] Figure 3 It is an internal structure schematic diagram of the fermentation tank of the fermentation device for fertilizer production and processing provided by the present application.

[0022] Figure 4 It is a side view half-section structure schematic diagram of the fermentation device for fertilizer production and processing provided by the present application. Figure 1 ;

[0023] Figure 5 It is an enlarged structure schematic diagram of area A of the fermentation device for fertilizer production and processing provided by the present application. Figure 4

[0024] Figure 6 It is an enlarged structure schematic diagram of area B of the fermentation device for fertilizer production and processing provided by the present application. Figure 4

[0025] Figure 7 It is an enlarged structure schematic diagram of area C of the fermentation device for fertilizer production and processing provided by the present application. Figure 4

[0026] Figure 8 It is a side view half-section structure schematic diagram of the fermentation device for fertilizer production and processing provided by the present application. Figure 2 ;

[0027] Figure 9 It is an enlarged structure schematic diagram of area D of the fermentation device for fertilizer production and processing provided by the present application. Figure 8

[0028] Figure 10 It is an enlarged structure schematic diagram of area E of the fermentation device for fertilizer production and processing provided by the present application. Figure 8

[0029] ​​​​​In the figure: 1, fermentation tank; 2, stirring shaft; 21, spiral disc; 211, air groove; 3, mounting box; 31, mounting frame; 32, driving motor; 4, sealing ring; 41, rotating ring; 42, bottom cleaning rod; 421, bottom filter screen; 43, wall cleaning rod; 431, side filter screen; 44, blowdown pipe; 5, piston box; 51, oxygenation hole; 52, gas outlet pipe; 53, piston plate; 531, first spring; 54, limiting strip; 55, magnetic plate; 56, air inlet pipe; 6, discharge hopper; 61, discharge chute; 62, threaded rod; 63, double-head motor; 64, blocking plate; 7, air pressure box; 71, air pressure plate; 72, second spring; 73, arc-shaped plate; 74, first air pipe; 75, second air pipe. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0031] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0032] Embodiment:

[0033] With reference to Figures 1-10 A fermentation device for fertilizer production and processing, comprising a fermentation tank 1, and an opening for feeding is formed in the top of the fermentation tank 1, a stirring shaft 2 is rotatably connected in the fermentation tank 1, a spiral disc 21 is fixedly connected to the outer wall of the stirring shaft 2, a mounting box 3 is fixedly connected to the top of the fermentation tank 1, a mounting frame 31 is fixedly connected to the top of the mounting box 3, a driving motor 32 is fixedly connected to the top of the mounting frame 31, the output shaft of the driving motor 32 is fixedly connected to the top end of the stirring shaft 2, and a speed reducer is arranged on the output shaft of the driving motor 32, further comprising: a liquid discharge assembly arranged in the fermentation tank 1, the liquid discharge assembly is used for discharging the liquid generated by the fermentation of the fertilizer in the fermentation tank 1; and an oxygenation assembly arranged in the fermentation tank 1, the oxygenation assembly is used for introducing airflow into the fermentation tank 1 to increase the oxygen content.

[0034] With reference to Figures 3-6The liquid discharge assembly comprises a sealing ring 4 fixed at the bottom of the fermentation tank 1, a rotating ring 41 rotatably connected in the sealing ring 4, a bottom sweeping rod 42 fixedly connected to the side wall of the rotating ring 41, the bottom sweeping rod 42 slidingly abutting the bottom of the inner cavity of the fermentation tank 1, a bottom filter screen 421 fixedly connected to the side wall of the bottom sweeping rod 42, a wall sweeping rod 43 fixedly connected between the top of the rotating ring 41 and the upper portion of the side wall of the stirring shaft 2, the wall sweeping rod 43 slidingly abutting the side wall of the inner cavity of the fermentation tank 1, and a side filter screen 431 fixedly connected to the side wall of the wall sweeping rod 43; the rotating ring 41 is in communication with the inner cavity of the sealing ring 4, the inner cavities of the bottom sweeping rod 42 and the wall sweeping rod 43 are in communication with the inner cavity of the rotating ring 41, a sewage pipe 44 is fixedly connected to the bottom of the side wall of the fermentation tank 1, and the input end of the sewage pipe 44 is in communication with the inner cavity of the sealing ring 4; the bottom sweeping rod 42 and the wall sweeping rod 43 are symmetrically provided with two groups, and the bottom filter screens 421 provided on the two groups of bottom sweeping rods 42 are located on the pressure-receiving sides of the bottom sweeping rods 42.

[0035] Through the above structure, the driving motor 32 is started to drive the stirring shaft 2 and the spiral disc 21 to rotate in the fermentation tank 1, so as to stir the material pile in the fermentation, uniformly mix the internal materials, and effectively exchange heat between the internal and external materials of the material pile, thereby helping the material pile to dissipate heat, ensuring microbial activity, and improving the fermentation effect; the stirring shaft 2 also synchronously drives the bottom sweeping rod 42 and the wall sweeping rod 43 to rotate, so as to achieve better stirring effect and scrape the inner wall of the fermentation tank 1, avoiding adhesion of the materials, and facilitating subsequent cleaning of the inner wall of the fermentation tank 1; when the bottom sweeping rod 42 and the wall sweeping rod 43 rotate in the materials, the percolate generated by fermentation in the materials passes through the bottom filter screen 421 and the side filter screen 431 to gather in the sealing ring 4, and is finally discharged from the fermentation tank 1 by the sewage pipe 44, thereby effectively reducing the moisture content in the fermentation tank 1, avoiding mutual adhesion of the materials due to excessive moisture, and diluting the internal nutrient components of the material pile, improving the porosity of the materials, facilitating contact of oxygen with the materials in the material pile, and ensuring the composting effect.

[0036] Referring to Figure 3 , Figure 8 and Figure 9The oxygen increasing assembly comprises two groups of piston boxes 5 fixed on the two sides of the mounting box 3, and the piston box 5 is communicated with the upper cavity of the mounting box 3. The spiral disc 21 is internally provided with a ventilation groove 211, and the lower sidewall of the spiral disc 21 is provided with a plurality of oxygen increasing holes 51 communicated with the ventilation groove 211. The ventilation groove 211 is communicated with the inner cavity of the stirring shaft 2, and the inner cavity of the stirring shaft 2 is communicated with the lower cavity of the mounting box 3. The bottom of the piston box 5 is fixedly provided with an air outlet pipe 52 communicated with the lower cavity of the mounting box 3, and the other end of the air outlet pipe 52 is communicated with the lower cavity of the mounting box 3. The air outlet pipe 52 is provided with a one-way valve, and the piston box 5 is provided with an air charging part for guiding the airflow into the lower cavity of the mounting box 3. The air charging part comprises a piston plate 53 slidably connected in the piston box 5. The inner cavity of the piston box 5 is fixedly connected with a limiting strip 54 at the bottom of the side close to the stirring shaft 2. The side of the piston plate 53 away from the stirring shaft 2 is fixedly connected with a first spring 531 and the inner wall of the piston box 5. The stirring shaft 2 in the mounting box 3 is fixedly connected with a magnetic plate 55 on both sides. The magnetic plate 55 and the piston plate 53 are magnetically repelled. The two piston boxes 5 are fixedly connected with an air inlet pipe 56 communicated with the other end of the sewage pipe 44. The air inlet pipe 56 is provided with a one-way valve.

[0037] It should be noted that the one-way valve in the air inlet pipe 56 can only make the gas in the sewage pipe 44 enter the piston box 5. The one-way valve in the air outlet pipe 52 can only make the gas in the piston box 5 enter the lower cavity of the mounting box 3.

[0038] Through the setting of the above structure, in the process of rotating the stirring shaft 2, the repulsion between the magnetic plate 55 and the piston plate 53 will make the piston plate 53 slide to the side of compressing the first spring 531 when they are in the repulsion area, thereby compressing the gas in the piston box 5 and opening the one-way valve in the gas outlet pipe 52, so that the gas enters the lower cavity of the mounting box 3 along the gas outlet pipe 52, and then along the inner cavity of the stirring shaft 2 and the ventilation groove 211 from the oxygenation hole 51 to the inside of the material pile, thereby increasing the oxygen content in the material pile, providing sufficient oxygen for the microorganisms in the material pile, and making the material in the material pile uniformly contact with oxygen, improving the respiration of microorganisms and accelerating the fermentation efficiency, thereby improving the fertilizer quality; when the magnetic plate 55 and the piston plate 53 are out of the repulsion area, the piston plate 53 will reset under the rebound action of the first spring 531, thereby generating a negative pressure suction in the piston box 5, thereby opening the one-way valve in the air inlet pipe 56, so that the negative pressure suction is transmitted along the air inlet pipe 56 to the drain pipe 44, thereby generating suction effect at the input end and the output end of the drain pipe 44, first, the air outside the drain pipe 44 is sucked into the piston box 5 to supplement the air therein, and second, part of the suction is transmitted to the sealing ring 4 through the input end of the drain pipe 44, so that the leachate generated during fermentation flows rapidly to this place, thereby improving the efficiency of leachate discharge.

[0039] Referring to Figure 4 , Figure 7 , wherein the inner top of the fermentation tank 1 is fixedly connected with the air pressure box 7, the air pressure plate 71 is slidably connected in the air pressure box 7, the second spring 72 is fixedly connected between the top of the air pressure plate 71 and the inner top of the air pressure box 7, the bottom of the air pressure plate 71 is fixedly connected with the arc-shaped plate 73, the top of the air pressure box 7 is fixedly and communicatively connected with the first air pipe 74, the other end of the first air pipe 74 is in communication with the inner cavity of the air inlet pipe 56, the side wall of the air pressure box 7 is fixedly and communicatively connected with the second air pipe 75, the other end of the second air pipe 75 is in communication with the lower cavity of the mounting box 3, and the first air pipe 74 and the second air pipe 75 are both provided with one-way valves.

[0040] It should be noted that the one-way valve in the first air pipe 74 can only allow the airflow in the drain pipe 44 to enter the air pressure box 7; the one-way valve in the second air pipe 75 can only allow the airflow in the air pressure box 7 to enter the lower cavity of the mounting box 3.

[0041] With the arrangement of the above structure, in the process of the wall-sweeping rod 43 following the rotation of the stirring shaft 2, it will suddenly contact with the arc-shaped plate 73, thereby generating an impact vibration effect, so as to vibrate and clean the side filter screen 431, avoid the blockage of the side filter screen 431, improve the permeability of the side filter screen 431, and ensure the filtering effect. Moreover, with the rotation of the wall-sweeping rod 43, the arc-shaped plate 73 will be extruded, so that the arc-shaped plate 73 pushes the air pressure plate 71 to move to one side of the compressed second spring 72, thereby compressing the gas in the air pressure box 7 and opening the one-way valve in the second air pipe 75, so that the compressed gas enters the installation box 3 along the second air pipe 75, thereby filling the oxygen-containing gas flow into the inside of the material pile again, and further improving the fermentation efficiency. When the wall-sweeping rod 43 passes the arc-shaped plate 73, under the rebounding effect of the second spring 72, the air pressure plate 71 will reset and slide, thereby generating a suction effect in the air pressure box 7 and opening the one-way valve in the first air pipe 74, so that the negative pressure suction is transmitted to the sewage pipe 44 along the air inlet pipe 56, thereby firstly achieving the supplement of the oxygen-containing gas in the air pressure box 7, secondly generating a suction effect in the sealing ring 4, and thirdly achieving the suction of the leachate, so as to ensure the smooth discharge of the leachate.

[0042] With reference to Figure 2 , Figure 8 and Figure 10 , wherein the bottom of the fermentation tank 1 is fixedly connected with two discharge hoppers 6, and the bottom of the fermentation tank 1 is provided with two discharge grooves 61, which are in communication with the discharge hoppers 6, and the discharge hoppers 6 are provided with a blocking part for controlling the opening and closing of the discharge grooves 61; the blocking part comprises two groups of threaded rods 62 with opposite threads, one end of each group of threaded rods 62 is rotatably connected to the outer wall of the two discharge hoppers 6, the bottom of the fermentation tank 1 is fixedly connected with a double-head motor 63, the other end of each group of threaded rods 62 is fixed to the two rotating shafts of the double-head motor 63, and the threaded rods 62 are threadedly sleeved with blocking plates 64, the blocking plates 64 are inserted into the discharge hoppers 6, the blocking plates 64 are attached to the bottom of the output end of the discharge grooves 61, and the outer diameter of the blocking plates 64 is greater than the inner diameter of the discharge grooves 61.

[0043] With the arrangement of the above structure, after the fermentation is completed, the double-head motor 63 is started to drive the two groups of oppositely arranged threaded rods 62 to rotate, so that the two groups of blocking plates 64 move towards the side close to the double-head motor 63, thereby opening the discharge grooves 61 and making the fermented fertilizer discharge from the fermentation tank 1 along the discharge grooves 61 and the discharge hoppers 6. At the same time, with the rotation of the bottom-sweeping rod 42 and the wall-sweeping rod 43, the residual fertilizer in the fermentation tank 1 can be easily scraped, so that the fertilizer can be smoothly discharged from the discharge grooves 61, and the situation of residual fertilizer sticking in the fermentation tank 1 is avoided, thereby reducing the difficulty of subsequent cleaning and improving the convenience of cleaning.

[0044] With reference to Figures 1-10In the present application, when in use, the pretreated organic waste is added into the fermentation tank 1 for composting fermentation, and during the fermentation process, the driving motor 32 can be regularly started to drive the stirring shaft 2 and the spiral plate 21 to rotate in the fermentation tank 1, so as to stir the material pile in the fermentation, mix the internal materials uniformly, and make the materials inside and outside the material pile exchange heat effectively, help the material pile to dissipate heat, so as to ensure the microbial activity and improve the fermentation effect; and the stirring shaft 2 also synchronously drives the bottom sweeping rod 42 and the wall sweeping rod 43 to rotate, so as to realize better stirring effect, and scrape the inner wall of the fermentation tank 1 at the same time, avoid the adhesion of the materials, and facilitate the subsequent cleaning of the inner wall of the fermentation tank 1; and when the bottom sweeping rod 42 and the wall sweeping rod 43 rotate in the materials, the leachate generated by fermentation in the materials will pass through the bottom filter screen 421 and the side filter screen 431 to collect in the sealing ring 4, and finally be discharged from the fermentation tank 1 through the blowdown pipe 44, so as to effectively reduce the moisture content in the fermentation tank 1, avoid the mutual adhesion of the materials due to excessive moisture, and dilute the internal nutrient components of the material pile, improve the porosity between the materials, facilitate the contact between oxygen and the materials in the material pile, and ensure the composting effect; and the excessive leachate can be conveniently collected and treated, so as to realize the reasonable utilization of resources and improve the energy-saving and environmental protection effect.

[0045] In the process of rotating the stirring shaft 2, the repulsion between the magnetic plate 55 and the piston plate 53 will make the piston plate 53 slide to the side where the first spring 531 is compressed, so as to compress the gas in the piston box 5 and open the one-way valve in the gas outlet pipe 52, so that the gas enters the lower cavity of the installation box 3 along the gas outlet pipe 52, and then is discharged from the oxygenation hole 51 to the inside of the material pile along the inner cavity of the stirring shaft 2 and the ventilation groove 211, so as to increase the oxygen content in the material pile, provide sufficient oxygen for the microorganisms in the material pile, and make the material in the material pile contact with oxygen uniformly with the stirring of the material pile, improve the respiration of the microorganisms, speed up the fermentation efficiency, and improve the fertilizer quality; when the magnetic plate 55 and the piston plate 53 are out of the repulsion area, the piston plate 53 will reset and slide under the rebound of the first spring 531, so as to generate a negative pressure suction in the piston box 5, thereby opening the one-way valve in the air inlet pipe 56, so that the negative pressure suction is transmitted to the drain pipe 44 along the air inlet pipe 56, so that suction is generated at the input end and the output end of the drain pipe 44. First, the outside air flow is sucked into the piston box 5 to supplement the air in the piston box 5, and second, part of the suction is transmitted to the sealing ring 4 through the input end of the drain pipe 44, so that the leachate generated during fermentation flows quickly to this place, improving the efficiency of leachate discharge. And in the process of rotating the wall sweeping rod 43 with the stirring shaft 2, the wall sweeping rod 43 will suddenly contact the arc plate 73, so as to generate an impact vibration effect, thereby vibrating and cleaning the side filter screen 431, avoiding the blockage of the side filter screen 431, improving the permeability of the side filter screen 431, and ensuring the filtering effect. Moreover, the rotation of the wall sweeping rod 43 will extrude the arc plate 73, so that the arc plate 73 pushes the air pressure plate 71 to move to the side where the second spring 72 is compressed, so as to compress the gas in the air pressure box 7 and open the one-way valve in the second gas pipe 75, so that the compressed gas enters the installation box 3 along the second gas pipe 75, thereby filling the oxygen-containing gas into the inside of the material pile again, further improving the fermentation efficiency; when the wall sweeping rod 43 passes the arc plate 73, the air pressure plate 71 will reset and slide under the rebound of the second spring 72, so as to generate a suction effect in the air pressure box 7 and open the one-way valve in the first gas pipe 74, so that the negative pressure suction is transmitted to the drain pipe 44 along the air inlet pipe 56, so as to first realize the supplement of the oxygen-containing gas in the air pressure box 7, and secondly realize the suction of the leachate in the sealing ring 4, ensuring the smooth discharge of the leachate.

[0046] Finally, after the fermentation is completed, the double-head motor 63 is started to drive the two groups of reverse threaded rods 62 to rotate, so that the two groups of blocking plates 64 move towards the side close to the double-head motor 63, thereby opening the discharge chute 61, so that the fermented fertilizer is discharged from the fermentation tank 1 along the discharge chute 61 and the discharge hopper 6, and at the same time, the rotation of the bottom sweeping rod 42 and the wall sweeping rod 43 can conveniently scrape the residual fertilizer in the fermentation tank 1, so that the fertilizer is smoothly discharged from the discharge chute 61, and the situation of residual fertilizer adhesion in the fermentation tank 1 is avoided, thereby reducing the subsequent cleaning difficulty and improving the cleaning convenience.

[0047] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent replacements or changes to the technical solutions and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A fermentation apparatus for fertilizer production and processing, comprising a fermentation tank (1), characterized in that, The fermentation tank (1) is rotatably connected to a stirring shaft (2), and a spiral disc (21) is fixedly connected to the outer wall of the stirring shaft (2). A mounting box (3) is fixedly connected to the top of the fermentation tank (1), and a mounting frame (31) is fixedly connected to the top of the mounting box (3). A drive motor (32) is fixedly connected to the top of the mounting frame (31). The output shaft of the drive motor (32) is fixedly connected to the top end of the stirring shaft (2), and a reducer is provided on the output shaft of the drive motor (32). The fermentation tank (1) also includes: A drainage component is provided in the fermentation tank (1) and is used to drain the liquid generated by the fermentation of fertilizer in the fermentation tank (1). An oxygenation component is provided in the fermenter (1) and is used to introduce airflow into the fermenter (1) to increase the oxygen content. The drainage assembly includes a sealing ring (4), which is fixed to the bottom of the fermenter (1). A rotating ring (41) is rotatably connected inside the sealing ring (4). A bottom sweeping rod (42) is fixedly connected to the side wall of the rotating ring (41). The bottom sweeping rod (42) slides against the bottom of the inner cavity of the fermenter (1). A bottom filter screen (421) is fixedly connected to the side wall of the bottom sweeping rod (42). A wall sweeping rod (43) is fixedly connected between the top of the rotating ring (41) and the upper part of the side wall of the stirring shaft (2). The wall sweeping rod (43) slides against the side wall of the inner cavity of the fermenter (1). A side filter screen (431) is fixedly connected to the side wall of the wall sweeping rod (43). The rotating ring (41) is connected to the inner cavity of the sealing ring (4), and the inner cavities of the bottom sweeping rod (42) and the wall sweeping rod (43) are connected to the inner cavity of the rotating ring (41). A drain pipe (44) is fixedly connected to the bottom of the side wall of the fermentation tank (1), and the input end of the drain pipe (44) is connected to the inner cavity of the sealing ring (4). The oxygenation assembly includes two sets of piston boxes (5), which are fixed on both sides of the mounting box (3) respectively. The piston boxes (5) are connected to the upper cavity of the mounting box (3). The spiral disk (21) has an air vent (211) inside. The lower side wall of the spiral disk (21) has multiple sets of oxygenation holes (51). The oxygenation holes (51) are connected to the air vent (211). The air vent (211) is connected to the inner cavity of the stirring shaft (2). The inner cavity of the stirring shaft (2) is connected to the lower cavity of the mounting box (3). The bottom of the piston box (5) is fixed and connected to an air outlet pipe (52). The other end of the air outlet pipe (52) is connected to the lower cavity of the mounting box (3). A one-way valve is provided in the air outlet pipe (52). An air filling part is provided in the piston box (5) to introduce airflow into the lower cavity of the mounting box (3). The inflation part includes a piston plate (53), which is slidably connected in the piston box (5). A limit strip (54) is fixedly connected to the bottom of the side of the piston box (5) near the stirring shaft (2). A first spring (531) is fixedly connected between the side of the piston plate (53) away from the stirring shaft (2) and the inner wall of the piston box (5). Magnetic plates (55) are fixedly connected to both sides of the stirring shaft (2) located in the mounting box (3). The magnetic plates (55) and the piston plate (53) are magnetically repelled. An air inlet pipe (56) is fixed and connected between the piston boxes (5) on both sides. The other end of the air inlet pipe (56) is connected to the top of the inner cavity of the drain pipe (44), and a one-way valve is provided in the air inlet pipe (56). A pressure box (7) is fixedly connected to the top of the fermentation tank (1). A pressure plate (71) is slidably connected inside the pressure box (7). A second spring (72) is fixedly connected between the top of the pressure plate (71) and the top of the pressure box (7). An arc plate (73) is fixedly connected to the bottom of the pressure plate (71). A first air pipe (74) is fixedly connected to the top of the pressure box (7). The other end of the first air pipe (74) is connected to the inner cavity of the air inlet pipe (56). A second air pipe (75) is fixedly connected to the side wall of the pressure box (7). The other end of the second air pipe (75) is connected to the lower cavity of the mounting box (3). A one-way valve is provided inside both the first air pipe (74) and the second air pipe (75).

2. The fermentation apparatus for fertilizer production and processing according to claim 1, characterized in that, The bottom sweeping rod (42) and the wall sweeping rod (43) are symmetrically arranged in two sets, and the bottom filter screen (421) arranged on the bottom sweeping rod (42) of both sets is located on the rotating pressure side of the bottom sweeping rod (42).

3. The fermentation apparatus for fertilizer production and processing according to claim 1, characterized in that, The fermentation tank (1) is fixedly connected to two bottom sides with discharge hoppers (6), and discharge channels (61) are opened on both bottom sides of the fermentation tank (1). The discharge channels (61) are connected to the discharge hoppers (6), and the discharge hoppers (6) are provided with a sealing part to control the opening and closing of the discharge channels (61).

4. The fermentation apparatus for fertilizer production and processing according to claim 3, characterized in that, The sealing part includes two sets of threaded rods (62) with opposite threads. One end of each set of threaded rods (62) is rotatably connected to the outer wall of the two discharge hoppers (6). A double-headed motor (63) is fixedly connected to the bottom of the fermentation tank (1). The other end of each set of threaded rods (62) is fixed to the two rotating shafts of the double-headed motor (63). A sealing plate (64) is threaded onto each of the two threaded rods (62). The sealing plate (64) is inserted into the discharge hopper (6). The sealing plate (64) is attached to the bottom of the output end of the discharge trough (61), and the outer diameter of the sealing plate (64) is larger than the inner diameter of the discharge trough (61).

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