Intelligent spiral saline-alkali soil organic fertilizer stirring fermentation method and device

Abstract

The invention discloses an intelligent spiral saline-alkali soil organic fertilizer stirring and fermenting device which comprises three stirring and fermenting chambers and a spiral conveying device communicated with the three stirring and fermenting chambers which are sequentially arranged in the material flowing direction, and each stirring and fermenting chamber is provided with a feeding port and a discharging port. A temperature control device and an oxygen concentration control device are arranged in the stirring fermentation chamber, a photovoltaic power generation device for supplying power to the temperature control device and the oxygen concentration control device is arranged on the stirring fermentation chamber, and the three stirring fermentation chambers are sequentially arranged to be a heating chamber, a constant-temperature chamber and a cooling chamber in the material flowing direction; and the stirring fermentation chamber independently controls the temperature and the oxygen concentration. The temperature and oxygen concentration of each stirring fermentation chamber are independently controlled, so that the fermentation process can be better matched with the optimal metabolism efficiency of high-temperature aerobic flora, organic matter decomposition is accelerated, and the fermentation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of organic waste treatment and fermentation equipment, in particular to a method and device for stirring and fermenting organic fertilizer in a spiral type saline-alkali soil. BACKGROUND

[0002] In the fields of agriculture and environmental protection, the effective utilization of saline-alkali soil and the treatment of organic waste have always been a topic of concern. With the growth of population and the expansion of agricultural production scale, the amount of organic waste is increasing, and reasonable treatment of these wastes can not only reduce environmental pollution, but also realize the recycling of resources. As a special type of land, saline-alkali soil has a wide area, and if the organic waste can be efficiently treated and converted into organic fertilizer in the saline-alkali soil environment, it will have important significance for improving soil fertility and soil quality, and will also help to promote the sustainable development of agriculture.

[0003] Some simple open fermentation tanks are used to rely on the natural environment for fermentation. This method is relatively simple and direct, and the cost is relatively low, but it cannot meet the metabolic needs of the bacterial flora, resulting in slow decomposition of organic matter and low fermentation efficiency. SUMMARY

[0004] The purpose of the application is to provide a method and device for stirring and fermenting organic fertilizer in a spiral type saline-alkali soil, in order to solve the problem of low fermentation efficiency of organic waste in the saline-alkali soil environment.

[0005] In the first aspect, the application provides a device for stirring and fermenting organic fertilizer in a spiral type saline-alkali soil, which adopts the following technical scheme: The utility model provides a kind of intelligent spiral saline-alkali soil organic fertilizer stirring fermentation device, including three stirring fermentation chambers being sequentially arranged along material flow direction, spiral conveying device being communicated with three described stirring fermentation chambers, the stirring fermentation chamber is provided with feed inlet and discharge outlet, temperature control device and oxygen concentration control device are arranged in the stirring fermentation chamber, photovoltaic power generation device for the temperature control device and the oxygen concentration control device power supply is arranged on the stirring fermentation chamber, three described stirring fermentation chambers are sequentially arranged as temperature rising chamber, constant temperature chamber and temperature reducing chamber along material flow direction, and the temperature and oxygen concentration of each described stirring fermentation chamber are independently controlled;The bottom of the stirring fermentation chamber is provided with outlet pipe being communicated in chamber, the outlet end of the outlet pipe is provided with first filter piece and axial sliding sleeve is equipped with fixed cylinder, the fixed cylinder is axially slidably sleeved with sliding cylinder capable of extending the outlet end of the fixed cylinder, the sliding cylinder is provided with second filter piece covering the outlet end of the sliding cylinder, and the particle size of the second filter piece is less than the first filter piece, and the circumferential sidewall of the outlet end of the sliding cylinder is provided with a plurality of through holes, the sliding cylinder is provided with a cleaning piece located on the side of the second filter piece, and the fixed cylinder is provided with a reset member for driving the sliding cylinder to reset sliding.

[0006] By adopting the above technical scheme, the three stirring fermentation chambers with segmented temperature control are sequentially arranged as temperature rising chamber, constant temperature chamber and temperature reducing chamber along material flow direction, and the spiral conveying device is used to push the material to flow between the stirring fermentation chambers, to ensure that the material can orderly pass through each chamber, the temperature and oxygen concentration of each stirring fermentation chamber are independently controlled, so that the fermentation process can better match the optimal metabolic efficiency of high-temperature aerobic bacteria group, accelerate the decomposition of organic matter and improve the fermentation efficiency.

[0007] The wastewater generated during fermentation can be discharged from the stirring fermentation chamber in time through the outlet pipe. When the small-particle material is accumulated on the second filter piece through the first filter piece, the cleaning piece can scrape off the material on the second filter piece. However, when the material accumulates a certain amount, it will move the sliding cylinder downward due to the weight. After the end of the sliding cylinder extends out of the fixed cylinder, the through holes are exposed, and the wastewater can be temporarily discharged from the through holes. The cleaning piece can discharge the material on the second filter piece from the through holes. After cleaning, the weight decreases, and the reset member drives the sliding cylinder to reset and move upward, achieving the effect of automatic cleaning. At the same time, the efficiency of wastewater discharge is ensured, and the drying and fermentation efficiency of the material are indirectly accelerated.

[0008] Optionally, the fixed cylinder is axially provided with a first telescopic rod, the cleaning piece includes a first fixed shaft sleeve sleeved on one end of the first telescopic rod, a plurality of first cleaning rods corresponding to the second filter piece are spaced apart on the circumferential outer wall of the first fixed shaft sleeve, and the fixed cylinder is provided with a driving structure for driving the first telescopic rod to rotate around its own axis.

[0009] By adopting the technical scheme, the first telescopic rod is driven to rotate by the driving structure, the first fixed shaft sleeve and the first cleaning rod are driven to rotate, the telescopic action of the first telescopic rod can keep the first cleaning rod in contact with the second filter element, and the first cleaning rod can keep in contact with the second filter element during the sliding of the sliding cylinder downward, so that the scraping effect is ensured.

[0010] Optionally, the fixed cylinder is provided with a second telescopic rod located at the other side of the cleaning element away from the first telescopic rod, the first telescopic rod and the second telescopic rod are coaxially arranged, one end of the second telescopic rod is rotatably provided with a second fixed shaft sleeve, and the circumferential outer wall of the second fixed shaft sleeve is provided with a plurality of second cleaning rods corresponding to the second filter element.

[0011] By adopting the technical scheme, the second cleaning rod can scrape the other side of the second filter element, and the cleaning degree of the two sides of the second filter element is improved in cooperation with the first cleaning rod.

[0012] Optionally, the second filter element comprises a fixed ring arranged axially at the water outlet end of the sliding cylinder, an elastic filter ring net arranged on the circumferential inner wall of the fixed ring, and a connecting ring rotatably arranged at the center of the elastic filter ring net, opposite sides of the connecting ring are provided with connecting blocks, and the first fixed shaft sleeve and the second fixed shaft sleeve are respectively provided with connecting grooves matched with the corresponding connecting blocks.

[0013] By adopting the technical scheme, the cooperation of the connecting blocks and the connecting grooves and the rotation of the first telescopic rod can drive the second telescopic rod to rotate through the first fixed shaft sleeve, the connecting ring and the second fixed shaft sleeve, so that the second cleaning rod can rotate to scrape, and the scraping effect is improved.

[0014] Optionally, the first cleaning rod is rotatably connected with the first fixed shaft sleeve, the second cleaning rod is rotatably connected with the second fixed shaft sleeve, the first fixed shaft sleeve is provided with a first elastic element for driving the first cleaning rod to rotate towards the direction close to the elastic filter ring net, the second fixed shaft sleeve is provided with a second elastic element for driving the second cleaning rod to rotate towards the direction close to the elastic filter ring net, and the sliding range of the sliding cylinder is greater than the telescopic range of the second telescopic rod; when the sliding cylinder extends out of the water outlet end of the fixed cylinder, the elastic filter ring net abuts against the second fixed shaft sleeve, the elastic filter ring net is elastically deformed and concave inward under the force, and the aperture of the filter hole of the elastic filter ring net is increased due to the elastic deformation.

[0015] By adopting the technical scheme, in the process of the sliding cylinder sliding downward, the sliding range of the sliding cylinder is greater than the telescopic range of the second telescopic rod, when the second telescopic rod reaches the limit position of telescopic reduction, the sliding cylinder continues to slide downward, the second telescopic rod drives the elastic filter ring net to elastically deform and be concave inward towards the sliding cylinder, and the elastic filter ring net is conical; at the same time, the first elastic member drives the first cleaning rod to rotate towards the direction of being close to the elastic filter ring net, the second cleaning rod is driven by the second elastic member to rotate towards the direction of being away from the elastic filter ring net, and the first elastic member and the second elastic member can keep the first cleaning rod and the second cleaning rod in contact with the two sides of the elastic filter ring net.

[0016] Moreover, the pore size of the filter hole of the elastic filter ring net increases due to the elastic deformation, the material is facilitated to discharge from the filter hole, meanwhile, the through hole exposes the fixed cylinder, the elastic filter ring net is conical, the material located in the sliding cylinder also discharges from the through hole along the conical surface, the material located on the conical surface outside the elastic filter ring net also falls off due to the gravity, and the cleaning effect of the first cleaning rod and the second cleaning rod is improved.

[0017] Optionally, the temperature of the temperature increasing chamber is 60 to 70 DEG C, the temperature of the constant temperature chamber is 55 to 65 DEG C, and the temperature of the temperature decreasing chamber is 40 to 50 DEG C.

[0018] By adopting the technical scheme, different temperatures are matched with the optimal metabolic efficiency of the high-temperature aerobic bacteria group.

[0019] Optionally, the driving structure comprises a transmission shaft rotatably arranged on the fixed cylinder, a transmission bevel gear axially sleeved on the transmission shaft, a driven bevel gear axially sleeved on the first telescopic rod and meshed with the transmission bevel gear, and a driving motor arranged on the fixed cylinder and connected with the transmission shaft.

[0020] By adopting the technical scheme, the driving motor drives the transmission shaft to rotate, the transmission shaft drives the transmission bevel gear to rotate, and the transmission bevel gear drives the driven bevel gear to rotate, thereby driving the first telescopic rod to rotate.

[0021] In the second aspect, the application provides a method for intelligently stirring and fermenting organic fertilizer in a spiral saline-alkali soil, and the following technical scheme is adopted, comprising the following steps: The high-temperature aerobic bacteria and the organic matter are mixed in proportion and then added into a first stirring and fermentation chamber, i.e., a temperature increasing chamber, for stirring, and the temperature is increased to promote the activity of the high-temperature aerobic bacteria group, and the generated wastewater is discharged from a water outlet pipe; Then, a spiral conveying device is started to convey the material in the temperature increasing chamber to a constant temperature chamber, which is located behind the temperature increasing chamber, to keep the temperature stable, so that the high-temperature aerobic bacteria group can continuously and efficiently decompose the organic matter; Finally, the screw conveying device is restarted to convey the material in the constant-temperature chamber to the temperature-reducing chamber, and the temperature-reducing chamber gradually reduces the temperature of the material, so as to facilitate subsequent processing and storage.

[0022] By adopting the technical scheme, the three stirring and fermentation chambers with segmented temperature control are sequentially arranged as the temperature-increasing chamber, the constant-temperature chamber and the temperature-reducing chamber along the material flow direction, and the screw conveying device is used to push the material to flow between the stirring and fermentation chambers, so that the material can orderly pass through each chamber, the temperature and the oxygen concentration of each stirring and fermentation chamber are independently controlled, the fermentation process can better match the optimal metabolic efficiency of the high-temperature aerobic bacteria group, the decomposition of the organic matter is accelerated, and the fermentation efficiency is improved.

[0023] In summary, the present application has at least one of the following beneficial technical effects: 1. The three stirring and fermentation chambers with segmented temperature control are sequentially arranged as the temperature-increasing chamber, the constant-temperature chamber and the temperature-reducing chamber along the material flow direction, and the screw conveying device is used to push the material to flow between the stirring and fermentation chambers, so that the material can orderly pass through each chamber, the temperature and the oxygen concentration of each stirring and fermentation chamber are independently controlled, the fermentation process can better match the optimal metabolic efficiency of the high-temperature aerobic bacteria group, the decomposition of the organic matter is accelerated, and the fermentation efficiency is improved. 2. The wastewater generated during fermentation can be discharged from the stirring and fermentation chamber in time through the water outlet pipe. When the small-particle material is accumulated on the second filter element through the first filter element, the cleaning element can scrape the material on the second filter element, but when the material is accumulated to a certain amount, the sliding cylinder will be driven to move downward due to the weight, and after the one end of the sliding cylinder extends out of the fixed cylinder, the through hole is exposed, the wastewater can be temporarily discharged from the through hole, and the cleaning element can discharge the material on the second filter element from the through hole. After cleaning, the reset element drives the sliding cylinder to reset and move upward, achieving the effect of automatic cleaning, while ensuring the efficiency of wastewater discharge, indirectly accelerating the drying and fermentation efficiency of the material. 3. During the downward sliding process of the sliding cylinder, the sliding range of the sliding cylinder is greater than the extension range of the second extension rod, and when the second extension rod reaches the limit position of contraction, the sliding cylinder continues to slide downward, the second extension rod drives the elastic filter ring net to elastically deform and concave inward, forming a cone shape. At the same time, the first elastic element drives the first cleaning rod to rotate towards the elastic filter ring net, and the second cleaning rod is driven by the second elastic element to rotate away from the elastic filter ring net, so that the first elastic element and the second elastic element can keep the first cleaning rod and the second cleaning rod in contact with the two sides of the elastic filter ring net. In addition, the pore size of the filter holes of the elastic filter ring net increases due to elastic deformation, facilitating the discharge of the material from the filter holes. At the same time, the through hole of the fixed cylinder is exposed, the elastic filter ring net forms a cone shape, the material in the sliding cylinder also discharges from the through hole along the conical surface, and the material on the outer conical surface of the elastic filter ring net also falls off due to gravity, improving the cleaning effect of the first cleaning rod and the second cleaning rod. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application; Figure 2 This is a schematic diagram of the water outlet pipe of Embodiment 1 of this application; Figure 3 This is a cross-sectional schematic diagram of the water outlet pipe of Embodiment 1 of this application; Figure 4 This is an enlarged schematic diagram of section A in Embodiment 1 of this application; Figure 5 This is a schematic diagram of the structure of the second filter element in Embodiment 1 of this application; Figure 6 This is a schematic diagram of the cleaning component in Embodiment 1 of this application.

[0025] Explanation of reference numerals in the attached drawings: 1. Stirring and fermentation chamber; 11. Water outlet pipe; 12. Fixed cylinder; 13. First filter element; 14. First telescopic rod; 15. Drive structure; 151. Transmission shaft; 152. Transmission helical gear; 153. Driven helical gear; 154. Drive motor; 2. Screw conveyor; 3. Sliding cylinder; 31. Through hole; 32. Reset element; 4. Second filter element; 41. Fixed ring; 42. Elastic filter ring; 43. Connecting ring; 44. Connecting block; 5. Cleaning element; 51. First fixed bushing; 52. First cleaning rod; 53. Connecting groove; 54. First elastic element; 6. Second telescopic rod; 61. Second fixed bushing; 62. Second cleaning rod; 63. Second elastic element. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1 -Appendix Figure 6 This application will be described in further detail.

[0027] Example 1, Embodiment 1 of this application discloses an intelligent spiral-type organic fertilizer stirring and fermentation device for saline-alkali land.

[0028] Reference Figure 1 , Figure 2 A smart spiral-type organic fertilizer mixing and fermentation device for saline-alkali land includes three mixing and fermentation chambers 1 arranged sequentially along the material flow direction, and a spiral conveying device 2 connecting the three mixing and fermentation chambers 1. Each mixing and fermentation chamber 1 has an inlet and an outlet, and the inlets and outlets of two adjacent mixing and fermentation chambers 1 are connected by the spiral conveying device 2.

[0029] Reference Figure 1 , Figure 2The temperature control device is a temperature sensor and a temperature controller, the temperature controller is a heating or refrigeration device, and the oxygen concentration control device is an oxygen generator and an oxygen regulator. The stirring fermentation chamber 1 is provided with a photovoltaic power generation device for supplying power to the temperature control device and the oxygen concentration control device, and the photovoltaic power generation device is a photovoltaic power generation panel and an electricity storage box.

[0030] With reference to Figure 1 , Figure 2 The three stirring fermentation chambers 1 are sequentially arranged into a temperature-increasing chamber, a constant-temperature chamber and a temperature-decreasing chamber along the material flow direction, the temperature of the temperature-increasing chamber is 60-70 DEG C, the temperature of the constant-temperature chamber is 55-65 DEG C, and the temperature of the temperature-decreasing chamber is 40-50 DEG C, so that the fermentation process can better match the optimal metabolic curve of the high-temperature aerobic bacteria group, and the spiral conveying device 2 is used for pushing the rod material to flow in the fermentation chamber, so as to ensure that the material can orderly pass through each fermentation chamber. The temperature-increasing chamber can quickly heat the material to a suitable temperature, promote the activity of the high-temperature aerobic bacteria group, the constant-temperature chamber maintains a stable temperature, and the high-temperature aerobic bacteria group can continuously and efficiently decompose organic matter in this region, and the temperature-decreasing chamber gradually cools the material, which is convenient for subsequent processing and storage. The temperature sensor and the temperature controller control the temperature of each chamber, and the oxygen generator and the oxygen regulator control the oxygen concentration of each chamber.

[0031] With reference to Figure 2 , Figure 3 and Figure 4 The bottom of the stirring fermentation chamber 1 is provided with a water outlet pipe 11 communicating with the chamber, the water outlet end of the water outlet pipe 11 is provided with a first filter 13 and an axial sliding sleeve fixed cylinder 12, the fixed cylinder 12 is axially slidably sleeved with a sliding cylinder 3 capable of extending out of the water outlet end of the fixed cylinder 12, the sliding cylinder 3 is provided with a second filter 4 covering the water outlet end of the sliding cylinder 3 and having a smaller particle size than the first filter 13, and the first filter 13 is a filter screen. The application also includes a water storage tank communicating with the water outlet pipe 11.

[0032] With reference to Figure 2 , Figure 3 and Figure 4 The circumferential side wall of the water outlet end of the sliding cylinder 3 is provided with a plurality of through holes 31, the sliding cylinder 3 is provided with a cleaning piece 5 located on one side of the second filter 4, the fixed cylinder 12 is provided with a reset piece 32 for driving the sliding cylinder 3 to slide and reset, the reset piece 32 is a spring, one end of the reset piece 32 is fixedly connected to the fixed cylinder 12, and the other end of the reset piece 32 is fixedly connected to the sliding cylinder 3.

[0033] With reference to Figure 2 , Figure 3 and Figure 4 , the fixed cylinder 12 is axially provided with a first telescopic rod 14, which comprises a fixed rod and a telescopic rod sleeved in the fixed rod, a spring is arranged in the fixed rod, and the spring is fixedly connected between the fixed rod and the telescopic rod. The cleaning piece 5 comprises a first fixed shaft sleeve 51 fixedly sleeved at one end of the first telescopic rod 14, a plurality of first cleaning rods 52 corresponding to the second filtering piece 4 are arranged at the circumferential outer wall of the first fixed shaft sleeve 51, and the fixed cylinder 12 is provided with a driving structure 15 for driving the first telescopic rod 14 to rotate around the axis of the fixed cylinder 12.

[0034] With reference to Figure 2 , Figure 3 and Figure 4 , the driving structure 15 comprises a transmission shaft 151 rotatably connected to the fixed cylinder 12, a transmission bevel gear 152 axially fixedly sleeved on the transmission shaft 151, a driven bevel gear 153 axially fixedly sleeved on the first telescopic rod 14 and engaged with the transmission bevel gear 152, and a driving motor 154 fixedly connected to the fixed cylinder 12 and connected with the transmission shaft 151. The fixed cylinder 12 is provided with a structure for preventing the transmission shaft 151, the transmission bevel gear 152 and the driven bevel gear 153 from being in contact with wastewater.

[0035] With reference to Figure 4 , Figure 5 and Figure 6 , the fixed cylinder 12 is provided with a second telescopic rod 6 located on the other side of the cleaning piece 5 away from the first telescopic rod 14, and the second telescopic rod 6 has the same structure as the first telescopic rod 14. The first telescopic rod 14 and the second telescopic rod 6 are coaxially arranged, one end of the second telescopic rod 6 is rotatably connected with a second fixed shaft sleeve 61 through a bearing, and the circumferential outer wall of the second fixed shaft sleeve 61 is provided with a plurality of second cleaning rods 62 corresponding to the second filtering piece 4.

[0036] With reference to Figure 4 , Figure 5 and Figure 6 , the second filtering piece 4 comprises a fixed ring 41 axially fixedly connected to the water outlet end of the sliding cylinder 3, an elastic filtering ring net 42 arranged on the circumferential inner wall of the fixed ring 41, and a connecting ring 43 rotatably connected at the center of the elastic filtering ring net 42. The elastic filtering ring net 42 is made of a material with elasticity and certain strength, the opposite sides of the connecting ring 43 are fixedly connected with connecting blocks 44, and the first fixed shaft sleeve 51 and the second fixed shaft sleeve 61 are respectively provided with connecting grooves 53 matched with the corresponding connecting blocks 44.

[0037] With reference to Figure 4 , Figure 5 and Figure 6The first cleaning rod 52 is rotatably connected with the first fixed shaft sleeve 51 through a rotating shaft, and the second cleaning rod 62 is also rotatably connected with the second fixed shaft sleeve 61 through a rotating shaft. The first fixed shaft sleeve 51 is provided with a first elastic member 54 for driving the first cleaning rod 52 to rotate towards the direction of the elastic filter ring net 42, and the second fixed shaft sleeve 61 is provided with a second elastic member 63 for driving the second cleaning rod 62 to rotate towards the direction of the elastic filter ring net 42. The first elastic member 54 and the second elastic member 63 are both torsional springs sleeved on the rotating shaft. One end of the first elastic member 54 is fixedly connected with the first fixed shaft sleeve 51, and the other end is fixedly connected with the first cleaning rod 52. One end of the second elastic member 63 is fixedly connected with the second fixed shaft sleeve 61, and the other end is fixedly connected with the second cleaning rod 62.

[0038] With reference to Figure 4 , Figure 5 and Figure 6 , the sliding range of the sliding cylinder 3 is greater than the telescopic range of the second telescopic rod 6. When the sliding cylinder 3 extends out of the water outlet end of the fixed cylinder 12 and the through hole 31 is exposed to the fixed cylinder 12, the second telescopic rod 6 has reached the maximum telescopic range. The elastic filter ring net 42 abuts against the second fixed shaft sleeve 61, and the elastic filter ring net 42 is elastically deformed and concave inwardly under the force, and the pore size of the filter holes of the elastic filter ring net 42 is increased due to the elastic deformation.

[0039] The device of the present application also has necessary corrosion and waterproof structures, which are conventional designs and thus will not be described herein.

[0040] The implementation principle of the intelligent spiral saline-alkali soil organic fertilizer stirring and fermentation device according to Embodiment 1 of the present application is as follows: The three stirring and fermentation chambers 1 are arranged in sequence along the material flow direction as a temperature rising chamber, a constant temperature chamber and a temperature decreasing chamber, and the spiral conveying device 2 is used to push the material to flow between the stirring and fermentation chambers 1, so as to ensure that the material can orderly pass through each chamber. The temperature and oxygen concentration of each stirring and fermentation chamber 1 are independently controlled, so that the fermentation process can better match the optimal metabolic efficiency of the high-temperature aerobic bacteria group, accelerate the decomposition of organic matter and improve the fermentation efficiency.

[0041] In the process of the sliding of the sliding cylinder 3 downward, the sliding range of the sliding cylinder 3 is greater than the telescopic range of the second telescopic rod 6, when the second telescopic rod 6 reaches the limit position of telescopic reduction, the sliding cylinder 3 continues to slide downward, the second telescopic rod 6 drives the elastic filter ring net 42 to elastically deform and concave inwardly toward the sliding cylinder 3, and the elastic filter ring net 42 is in a conical shape; at the same time, the first elastic member 54 drives the first cleaning rod 52 to rotate toward the direction close to the elastic filter ring net 42, the second cleaning rod 62 is driven by the second elastic member 63 to rotate away from the elastic filter ring net 42, the first elastic member 54 and the second elastic member 63 can make the first cleaning rod 52 and the second cleaning rod 62 keep in contact with the two sides of the elastic filter ring net 42; and the aperture of the filter hole of the elastic filter ring net 42 is increased due to the elastic deformation, so that the materials can be discharged from the filter hole, at the same time, the through hole 31 exposes the fixed cylinder 12, the elastic filter ring net 42 is in a conical shape, the materials in the sliding cylinder 3 also can be discharged from the through hole 31 along the conical surface, the materials on the outer conical surface of the elastic filter ring net 42 also can be dropped due to the gravity, and the cleaning effect of the first cleaning rod 52 and the second cleaning rod 62 is improved.

[0042] Embodiment 2, The embodiment 2 of the application discloses a method for intelligent spiral type saline-alkali soil organic fertilizer stirring and fermentation, adopts the following technical scheme, and comprises the following steps: The high-temperature aerobic bacteria and the organic matter are mixed at a certain proportion, and then are added into a first stirring and fermentation chamber 1, i.e., a temperature rising chamber, for stirring, temperature rising is performed to promote the activity of the high-temperature aerobic bacteria group, and the generated wastewater is discharged from a water outlet pipe 11; Then, a spiral conveying device 2 is started, the material in the temperature rising chamber is conveyed to a constant temperature chamber, the constant temperature chamber is located behind the temperature rising chamber, and the temperature is kept stable, so that the high-temperature aerobic bacteria group can continuously and efficiently decompose the organic matter; Finally, the spiral conveying device 2 is started again, the material in the constant temperature chamber is conveyed to a temperature reducing chamber, the temperature reducing chamber gradually reduces the temperature of the material, so as to facilitate subsequent processing and storage.

[0043] The above are the preferred embodiments of the application, and do not limit the protection scope of the application, therefore: any equivalent changes made on the structure, shape and principle of the application should be covered in the protection scope of the application.

Claims

1. An intelligent spiral-type organic fertilizer stirring and fermentation device for saline-alkali land, characterized in that: The system includes three stirred fermentation chambers (1) arranged sequentially along the material flow direction, and a screw conveyor (2) connecting the three stirred fermentation chambers (1). Each stirred fermentation chamber (1) is equipped with an inlet and an outlet. A temperature control device and an oxygen concentration control device are installed inside each stirred fermentation chamber (1). A photovoltaic power generation device is installed on each stirred fermentation chamber (1) to supply power to the temperature control device and the oxygen concentration control device. The three stirred fermentation chambers (1) are arranged sequentially along the material flow direction as a heating chamber, a constant temperature chamber, and a cooling chamber. Each stirred fermentation chamber (1) independently controls its temperature and oxygen concentration. A water outlet pipe is installed at the bottom of each stirred fermentation chamber (1) connecting to the chamber. 11) The outlet end of the water pipe (11) is provided with a first filter element (13) and a fixed cylinder (12) which is axially slidably sleeved. The fixed cylinder (12) is axially slidably sleeved with a sliding cylinder (3) that can extend out of the outlet end of the fixed cylinder (12). The sliding cylinder (3) is provided with a second filter element (4) that covers the outlet end of the sliding cylinder (3) and has a filter particle size smaller than the first filter element (13). The circumferential sidewall of the outlet end of the sliding cylinder (3) is provided with several through holes (31). The sliding cylinder (3) is provided with a cleaning element (5) located on one side of the second filter element (4). The fixed cylinder (12) is provided with a reset element (32) for driving the sliding cylinder (3) to reset and slide.

2. The intelligent spiral-type saline-alkali land organic fertilizer stirring and fermentation device according to claim 1, characterized in that: The fixed cylinder (12) is axially provided with a first telescopic rod (14), and the cleaning component (5) includes a first fixed bushing (51) sleeved on one end of the first telescopic rod (14) and a plurality of first cleaning rods (52) corresponding to the second filter component (4) spaced apart on the circumferential outer wall of the first fixed bushing (51). The fixed cylinder (12) is provided with a drive structure (15) for driving the first telescopic rod (14) to rotate around its own axis.

3. The intelligent spiral-type saline-alkali land organic fertilizer stirring and fermentation device according to claim 2, characterized in that: The fixed cylinder (12) is provided with a second telescopic rod (6) located on the other side of the cleaning component (5) away from the first telescopic rod (14). The first telescopic rod (14) and the second telescopic rod (6) are coaxially arranged. A second fixed bushing (61) is rotatably provided at one end of the second telescopic rod (6). A plurality of second cleaning rods (62) corresponding to the second filter component (4) are provided on the circumferential outer wall of the second fixed bushing (61).

4. The intelligent spiral-type saline-alkali land organic fertilizer stirring and fermentation device according to claim 3, characterized in that: The second filter element (4) includes a fixed ring (41) axially disposed at the water outlet end of the sliding cylinder (3), an elastic filter ring mesh (42) disposed on the circumferential inner wall of the fixed ring (41), and a connecting ring (43) rotatably disposed at the center of the elastic filter ring mesh (42). Connecting blocks (44) are provided on opposite sides of the connecting ring (43). The first fixed bushing (51) and the second fixed bushing (61) are respectively provided with connecting grooves (53) that cooperate with the corresponding connecting blocks (44).

5. The intelligent spiral-type saline-alkali land organic fertilizer stirring and fermentation device according to claim 4, characterized in that: The first cleaning rod (52) is rotatably connected to the first fixed bushing (51), and the second cleaning rod (62) is rotatably connected to the second fixed bushing (61). The first fixed bushing (51) is provided with a first elastic element (54) that drives the first cleaning rod (52) to rotate toward the elastic filter ring (42). The second fixed bushing (61) is provided with a second elastic element (63) that drives the second cleaning rod (62) to rotate toward the elastic filter ring (42). The sliding range of the sliding cylinder (3) is greater than the extension range of the second telescopic rod (6). When the sliding cylinder (3) extends out of the outlet end of the fixed cylinder (12), the elastic filter ring (42) abuts against the second fixed bushing (61). The elastic filter ring (42) is subjected to force and elastically deforms and concaves toward the sliding cylinder (3). The aperture of the filter hole of the elastic filter ring (42) increases due to the elastic deformation.

6. The intelligent spiral-type organic fertilizer stirring and fermentation device for saline-alkali land according to claim 1, characterized in that: The temperature of the heating chamber is 60 to 70°C, the temperature of the constant temperature chamber is 55 to 65°C, and the temperature of the cooling chamber is 40 to 50°C.

7. The intelligent spiral-type saline-alkali land organic fertilizer stirring and fermentation device according to claim 3, characterized in that: The drive structure (15) includes a drive shaft (151) rotatably mounted on the fixed cylinder (12), a drive helical gear (152) axially mounted on the drive shaft (151), a driven helical gear (153) axially mounted on the first telescopic rod (14) and meshing with the drive helical gear (152), and a drive motor (154) mounted on the fixed cylinder (12) and connected to the drive shaft (151).

8. A method for use in the intelligent spiral-type organic fertilizer stirring and fermentation device for saline-alkali land according to any one of claims 1-7, characterized in that, Includes the following steps: After mixing the high-temperature aerobic bacteria with organic matter in a certain proportion, the mixture is added to the first stirring fermentation chamber (1), which is the heating chamber, and stirred and heated to promote the activity of the high-temperature aerobic bacteria. The wastewater produced is discharged from the outlet pipe (11). Next, the screw conveyor (2) is started to transport the material in the heating chamber to the constant temperature chamber. The constant temperature chamber is located after the heating chamber and maintains a stable temperature so that the high-temperature aerobic bacteria can continuously and efficiently decompose organic matter. Finally, the screw conveyor (2) is restarted to transport the material in the constant temperature chamber to the cooling chamber, where the material is gradually cooled to facilitate subsequent processing and storage.

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