Film-coated fermentation box

Abstract

Belonging to the technical field of organic solid waste treatment, the invention discloses a film-coated fermentation box, which comprises a box body, a box cover and a condensate scraping device. The box cover is hinged to the box body, the box cover is provided with an arch-shaped top, the arch-shaped top is mainly composed of a waterproof breathable film, and a liquid outlet and a ventilation opening used for being connected with ventilation equipment are formed in the side wall of the box body; a partition plate is arranged in the box body, the interior of the box body is divided into a fermentation chamber and a ventilation chamber which are distributed up and down by the partition plate, air holes are formed in the partition plate, and a filling opening is formed in the top wall of the box body; the condensate scraping device comprises a flow guide mechanism and a water scraping mechanism, the flow guide mechanism comprises a flow guide groove, the flow guide groove surrounds the outer side of the filling opening, the water scraping mechanism comprises a flow guide bridge and a driving mechanism, and the flow guide bridge comprises a water scraping strip and a water receiving ditch. The condensate of the waterproof breathable film can be actively scraped and guided, and the moisture removal efficiency of the film-coated fermentation box is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of organic solid waste treatment, in particular to a film-covered fermentation box. Background Art

[0002] In recent years, membrane-covered aerobic fermentation, as an emerging, highly efficient and environmentally friendly fermentation technology, has been widely used to transform organic solid waste into fertilizer and bedding in (super) large-scale livestock farms or manure treatment centers. The main principle is to cover the surface of the fermented material with a selectively permeable functional membrane (a waterproof and breathable membrane), supplemented by forced ventilation, to maintain the entire fermentation process in a closed, slightly positive pressure environment. This effectively improves oxygen utilization efficiency, prolongs the duration of high temperatures, and reduces odorous gas emissions.

[0003] However, the amount of livestock and poultry manure produced by small-scale farms or individual farmers is relatively small, and the existing large-scale film-covered fermentation technology is not applicable. For this reason, relevant scholars have developed a lightweight and simplified film-covered fermentation box technology and supporting equipment. The film-covered fermentation box technology mainly uses a box of a certain volume to support and load solid manure, supplemented by functional membrane covering and efficient ventilation and oxygen supply, to achieve rapid heating, efficient sterilization and thorough composting of livestock and poultry manure. However, in the actual use of the film-covered fermentation box, due to the large temperature difference between the inside and outside of the waterproof and breathable membrane, the high-temperature water vapor under the membrane will continue to condense on the waterproof and breathable membrane to form a layer of condensate, and most of the condensate in the condensate layer will flow back to the pile, causing the pile material to maintain a high moisture content for a long time, greatly affecting the overall fermentation rate, fermentation uniformity and dehydration effect. At present, the method known to the applicant for treating the condensate under the membrane is to rely on the natural side flow of the condensate to collect and treat it. For example, a U-shaped groove is set on the top of the film-covered fermentation box along the wide sides of the arched functional membrane. Part of the condensate will naturally flow sideways along the arched functional membrane into the U-shaped groove. The condensate collected in the U-shaped groove can be discharged for treatment. However, since only a small part of the condensate under the membrane flows sideways to the lower parts on both sides during the film-covered fermentation process, most of the condensate directly drips onto the surface of the material. Therefore, the above passive collection method has low collection efficiency and unobvious water removal effect, and cannot meet the needs of active and rapid dehydration in large-scale film-covered high-temperature aerobic fermentation. Summary of the Invention

[0004] The purpose of the present invention is to solve the above technical problems and provide a film-covered fermentation box that can actively scrape and divert the condensate of the waterproof and breathable membrane, thereby significantly improving the moisture removal efficiency of the film-covered fermentation box.

[0005] To achieve the above-mentioned object, the present invention provides the following solution: The present invention discloses a film-covered fermentation box, comprising a box body, a box cover, and a condensate scraping device;

[0006] The box cover is hinged on the box body, and has a dome-shaped top, which is mainly composed of a waterproof and breathable membrane. The side wall of the box body is provided with a liquid outlet and a vent for connecting to a ventilation device;

[0007] A partition is provided in the box body, the partition divides the inner part of the box body into a fermentation chamber and a ventilation chamber distributed vertically, the partition is provided with an air vent for connecting the fermentation chamber and the ventilation chamber, a filling port connected to the fermentation chamber is provided on the top wall of the box body, and the ventilation chamber is connected to the vent;

[0008] The condensate scraping device includes a guide mechanism and a wiper mechanism. The guide mechanism includes a guide groove arranged outside the filling port. The guide groove is provided with a drain port, and the drain port is connected to the liquid outlet. The wiper mechanism includes a guide bridge capable of moving along the axial direction of the arch top and a driving mechanism for driving the guide bridge to move. The guide bridge includes a wiper strip for bonding with a waterproof and breathable membrane and a water receiving ditch for receiving water flow on both sides of the wiper strip. Both ends of the wiper strip and the water receiving ditch extend into the guide groove.

[0009] Preferably, the driving mechanism includes a rack, a gear and a driving motor, the rack is arranged parallel to the side of the strip groove, the driving motor is installed on the guide bridge, the output shaft of the driving motor is coaxially fixedly connected to the gear, and the gear is engaged with the rack.

[0010] Preferably, it includes two water receiving grooves and one wiper strip, the two water receiving grooves are arranged on both sides of the wiper strip, the cross-section of the wiper strip and the cross-section of the water receiving groove are both arc-shaped, the end of the arc-shaped cross-section of the wiper strip is smoothly connected to the end of the arc-shaped cross-section of the water receiving groove, and the curved side of the arc-shaped cross-section of the wiper strip faces the waterproof and breathable membrane.

[0011] Preferably, a discharge port is provided on the side wall of the box body, a box door is installed at the discharge port, and the discharge port is communicated with the fermentation chamber and the ventilation chamber.

[0012] Preferably, the liquid outlet is located at the bottom of the side wall of the box body, and the liquid outlet is connected to the drain port through a drain pipe, and the drain pipe is vertically arranged in the side wall of the box body.

[0013] Preferably, the ventilation equipment includes a ventilation box installed on the side wall of the box body, an air inlet is provided at the bottom of the ventilation box, an air outlet connected to the air outlet is provided on the side wall of the ventilation box, a blower is provided in the ventilation box, the air inlet end of the blower is connected to the air inlet, and the air outlet end of the blower is connected to the air outlet.

[0014] Preferably, a control panel and an opening and closing door are installed in the ventilation box, and the control panel is electrically connected to the driving mechanism and the blower.

[0015] Preferably, universal wheels are provided at the bottom of the box.

[0016] Preferably, a lifting ring is provided on the side wall of the box.

[0017] Preferably, the box body is provided with an opening and closing mechanism for driving the box cover to open and close, and the opening and closing mechanism includes a telescopic cylinder, the cylinder body of the telescopic cylinder is hinged on the side wall of the box body, and the piston rod of the telescopic cylinder is hinged to the box cover.

[0018] Compared with the prior art, the present invention has achieved the following technical effects:

[0019] The film-covered fermentation box of the present invention includes a box body, a box cover and a condensate scraping device. The condensate scraping device includes a diversion mechanism and a scraping mechanism. The diversion mechanism includes a diversion trough, a diversion bridge and a driving mechanism. The driving mechanism drives the diversion bridge to move along the axial direction of the arched top. The scraping strips of the diversion bridge can scrape the condensed water on the lower surface of the waterproof and breathable membrane of the box cover. The scraped water will flow into the water receiving ditch, and then flow into the diversion trough under the guidance of the water receiving ditch, and be discharged from the drain outlet of the diversion trough, thereby actively scraping and diverting the condensed water under the membrane of the waterproof and breathable membrane, avoiding the condensed water from falling onto the fermentation pile to affect the fermentation. At the same time, the waterproof and breathable membrane is made into an arch, and the corresponding scraping strips and water receiving ditch of the diversion bridge are also made into an arch. The arched water receiving ditch is more conducive to the condensed water flowing into the diversion trough, thereby realizing rapid drainage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 Schematic diagram of the three-dimensional structure of the film-covered fermentation box in the embodiment;

[0022] Figure 2 This is a partial enlarged schematic diagram of the telescopic cylinder in the film-covered fermentation box in the embodiment;

[0023] Figure 3 This is an enlarged structural diagram of the condensate scraping device in the film-covered fermentation box in the embodiment;

[0024] Figure 4 Schematic diagram of the front view of the condensate scraping device in the film-covered fermentation box in the embodiment;

[0025] Figure 5 Schematic diagram of the top view of the condensate scraping device in the film-covered fermentation box in the embodiment;

[0026] Figure 6 Schematic diagram of the three-dimensional structure of the driving mechanism in the film-covered fermentation box in the embodiment;

[0027] Figure 7 Schematic cross-sectional view of a condensate scraping device in a film-covered fermentation tank in an embodiment;

[0028] Figure 8 This is an enlarged schematic diagram of the box door and ventilation box in the film-covered fermentation box in the embodiment.

[0029] Description of reference numerals:

[0030] 1. Box body; 2. Box cover; 3. Partition; 4. Box door; 5. Ventilation box; 6. Diversion bridge; 7. Driving mechanism; 8. Diversion trough;

[0031] 11. Liquid outlet; 12. Telescopic cylinder; 13. Lifting ring; 14. Locking ring; 15. Universal wheel;

[0032] 21. Rectangular keel; 22. Semi-elliptical side panels; 23. Waterproof and breathable membrane;

[0033] 31. Ventilation holes;

[0034] 41. Locking rod; 42. Guide seat; 43. Limiting rod; 44. Limiting frame;

[0035] 51. Control panel; 52. Open and close door;

[0036] 61. Wiper strip; 62. Drainage ditch;

[0037] 71. Rack; 72. Gear; 73. Drive motor; 74. Electronic controller. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] This embodiment provides a film-covered fermentation box, such as Figures 1 to 8As shown, the apparatus comprises a housing 1, a lid 2, and a condensate scraping device. A partition 3 is provided within the housing 1, dividing the interior of the housing 1 into a fermentation chamber and a ventilation chamber, arranged vertically. The partition 3 is provided with air holes 31, connecting the fermentation chamber and the ventilation chamber. The fermentation chamber is used to hold the fermented material, while the ventilation chamber is used to admit air from the outside. Air enters the fermentation chamber through the air holes 31, providing oxygen for the fermented material to ferment aerobically. The lid 2 is hingedly connected to the housing 1. A filling port is provided on the top wall of the housing 1, connecting the filling port to the fermentation chamber. The lid 2 has a dome-shaped roof primarily composed of a waterproof, breathable membrane 23. The condensate scraping device comprises a diversion mechanism and a water scraping mechanism. The diversion mechanism includes a diversion trough 8 with a drain outlet. The diversion trough 8 is provided on the top wall of the housing 1, surrounding the filling port, thereby forming an annular diversion trough 8. The side wall of the box body 1 is provided with a liquid outlet 11 and a vent. The liquid outlet 11 is connected to the drain port on the guide groove 8, and the vent is connected to the ventilation chamber. After the ventilation equipment is connected to the vent, air can be supplied to the ventilation chamber through the vent. The wiper mechanism includes a guide bridge 6 and a drive mechanism 7. The guide bridge 6 can move along the axis of the arch top. The drive mechanism 7 is used to drive the guide bridge 6 to move. The guide bridge 6 includes a wiper strip 61 and a water receiving ditch 62. The wiper strip 61 is used to fit with the waterproof and breathable membrane 23. The two ends of the wiper strip 61 extend into the two strip grooves respectively. The water receiving ditch 62 is used to receive water flow on both sides of the wiper strip 61. The two ends of the water receiving ditch 62 extend into the two strip grooves respectively. Because the waterproof breathable membrane 23 is arched, and to ensure that the wiper strip 61 of the guide bridge 6 adheres to the waterproof breathable membrane 23 after the cover 2 is snapped on, the guide bridge 6 is also arched as a whole, that is, the wiper strip 61 and the water receiving groove 62 are all arched. The arched shape of the waterproof breathable membrane 23, the wiper strip 61, and the water receiving groove 62 primarily facilitates the scraped condensed water to flow along the water receiving groove 62 toward both ends, where it is quickly directed into the two straight grooves of the guide channel 8.

[0040] Working principle:

[0041] After the box cover 2 is buckled, the scraper strip 61 of the guide bridge 6 will fit with the arched top (waterproof breathable membrane 23) on the box cover 2. During the fermentation process of the fermented material in the box body 1, when it is necessary to remove condensed water from the arched top (waterproof breathable membrane 23), the driving mechanism 7 is started. The driving mechanism 7 drives the guide bridge 6 along the axial direction of the arched top (that is, the length direction of the waterproof breathable membrane 23). The driving mechanism 7 is started, and the guide bridge 6 moves along the length direction of the waterproof breathable membrane 23. The scraper strip 61 of the guide bridge 6 fits with the waterproof breathable membrane 23. The scraper strip 61 will scrape off the condensed water on the waterproof breathable membrane 23. The condensed water will flow into the water receiving ditch 62 along both sides of the scraper strip 61, and then flow into the two strip grooves of the guide groove 8 along the two ends of the water receiving ditch 62 respectively, and then be discharged into the liquid outlet 11 on the side wall of the box body 1 from the drain outlet of the guide groove 8, and then flow out to complete the scraping of the condensed water on the waterproof breathable membrane 23. A water collection container can be placed at the liquid outlet 11 to recover condensed water. The diversion bridge 6 can move from the leading end to the trailing end of the waterproof, breathable membrane 23 to form a single operating cycle, or it can move from the leading end to the trailing end and then back to the leading end to form a single operating cycle. The rest period between each operating cycle can be preset as needed.

[0042] In one embodiment, if Figures 1 to 8 As shown, the bottom of the guide groove 8 is preferably set to a sloped bottom, and the drain outlet is located at the bottom of the slope, which is conducive to the flow in the direction of the drain outlet of the water tank.

[0043] In one embodiment, if Figures 1 to 8 As shown, the drive mechanism 7 includes a rack 71, a gear 72, and a drive motor 73. The rack 71 is arranged parallel to the side of the strip groove. The drive motor 73 is installed on the diversion bridge 6. The output shaft of the drive motor 73 is coaxially fixedly connected to the gear 72, and the gear 72 is meshed with the rack 71. When the output shaft of the drive motor 73 rotates, the drive gear 72 rotates, and the gear 72 is driven to move along the length direction of the rack 71, that is, the extension direction of the strip groove (the length direction of the waterproof breathable membrane 23). The number of racks 71 and gears 72 is set as needed. For example, a rack 71 is set on the side of each strip groove, and a group of gears 72 is installed at each end of the diversion bridge 6. Each group of gears 72 includes two gears, and the two gears 72 in each group are respectively arranged on both sides of the diversion bridge 6.

[0044] In one embodiment, if Figures 1 to 8As shown, the bridge 6 includes two drainage grooves 62 and a wiper strip 61. The two drainage grooves 62 are located on either side of the wiper strip 61. The cross-sections of the wiper strip 61 and the drainage grooves 62 are both arc-shaped. The ends of the arc-shaped sections of the wiper strip 61 smoothly connect with the ends of the arc-shaped sections of the drainage grooves 62. The outer curved side of the arc-shaped section of the wiper strip 61 faces the waterproof and breathable membrane 23, giving the overall cross-section of the diversion bridge 6 a W-shaped shape. The arc-shaped cross-section of the wiper strip 61 facilitates water flow into the drainage grooves 62 on either side. This W-shaped cross-section is higher in the middle and lower at the sides, meaning that the arc-shaped section of the wiper strip 61 is higher, while the arc-shaped section of the drainage grooves 62 is lower. The higher center facilitates contact between the wiper strip 61 and the waterproof and breathable membrane 23 to scrape condensate from beneath the membrane, while also facilitating flow into the lower drainage grooves 62 on either side.

[0045] In one embodiment, if Figures 1 to 8 As shown, an electronic controller 74 is mounted on the inner curved side of the arcuate cross-section of the wiper strip 61. This controller is electrically connected to the drive motor 73 and controls the rotational direction and speed of the drive motor 73, such as achieving uniform or variable speed rotation. The electronic controller 74 requires a waterproof seal. The electronic controller 74 controls the wiping step length, reciprocating frequency, and speed. The electronic controller 74 can be electrically connected to the drive motor 73 using wires.

[0046] In one embodiment, if Figures 1 to 8 As shown, the water guide bridge 6 comprises a water receiving ditch 62 and a wiper strip 61. The wiper strip 61 is installed in the water receiving ditch 62, and the water flowing out from both sides of the wiper strip 61 is received by the water receiving ditch 62. The cross section of the wiper strip 61 is arc-shaped, and the cross section of the water receiving ditch 62 is U-shaped. The curved side of the arc-shaped cross section of the wiper strip 61 faces the waterproof breathable membrane 23. The outer curved side of the arc-shaped cross section of the wiper strip 61 is able to protrude from the U-shaped cross section of the water receiving ditch 62, so that the diversion bridge 6 forms a mountain-like shape.

[0047] In one embodiment, if Figures 1 to 8 As shown, the guide bridge 6 is made of stainless steel and has a polished surface. That is, the wiper strip 61 and the water receiving groove 62 are both made of stainless steel and have a polished surface. The polishing process not only reduces the wear of the waterproof and breathable membrane 23 during the wiper process, but also prevents rapid rusting in high temperature and high humidity environments.

[0048] In one embodiment, if Figures 1 to 8As shown, the sidewall of the housing 1 is provided with a discharge port, at which a door 4 is mounted. The discharge port communicates with both the fermentation chamber and the ventilation chamber. The door 4 can be opened to remove fermented materials or other debris from the fermentation chamber and the ventilation chamber through the discharge port. The door 4 can be designed in a suitable style, such as a bi-directional door structure, comprising two doors on either side. One end of each door is hinged to the sidewall of the housing 1, and the other end of each door is equipped with a locking rod 41 for controlling the opening and closing of the door 4. Specifically, the door 4 is provided with a guide seat 42 having a vertical hole. The locking rod 41 is mounted within the vertical hole and can slide up and down. Furthermore, the door 4 is provided with a stop frame 44, forming a stop slot between the stop frame 44 and the door 4. The lock rod 41 is provided with a stop rod 43, with the stop slot located in the path of the stop rod 43. A locking ring 14 is provided on the housing 1 at the position corresponding to the lock rod 41.

[0049] When it is necessary to open the door 4, the locking rod 41 is first lifted so that the locking rod 41 is disengaged from the locking ring 14, and the door 4 can be rotated to open. After releasing the lock rod 41, the locking rod 41 naturally falls, and the limiting rod 43 falls into the limiting groove of the limiting frame 44, preventing the locking rod 41 from continuing to fall. When it is necessary to lock the door 4, after rotating the door 4 to close, the locking rod 41 is naturally lowered along the vertical hole of the guide seat 42. The end of the locking rod 41 is inserted into the locking ring 14 to complete the locking. At the same time, the limiting rod 43 on the locking rod 41 just falls into the limiting groove of the limiting frame 44, thereby preventing the locking rod 41 from continuing to fall. As an example, the end of the locking rod 41 can be provided with an insertion head with a diameter smaller than that of the locking rod 41, and then the diameter of the locking ring 14 is reduced to match the insertion head. This is because the insertion head can be inserted into the locking ring 14, but the locking rod 41 has a larger diameter than the locking ring 14, so it will not be inserted into the locking ring 14, but will abut on the locking ring 14.

[0050] In one embodiment, if Figures 1 to 8 As shown, one end of the arched top of the box cover 2 is hinged to the back wall of the box body 1, and the discharge port is located on the front side wall of the box body 1 (the side wall close to the other end of the arched top).

[0051] In one embodiment, if Figures 1 to 8 As shown, the liquid outlet 11 is located at the bottom of the side wall of the box body 1, preferably the left side wall or the right side wall of the box body 1, and of course it can be set at the back wall or the front side wall. The liquid outlet 11 is connected to the drain outlet of the guide groove 8 through a drain pipe. The drain pipe is set in the side wall of the box body 1. The drain pipe is a vertical pipe, which can reduce the problem of water storage. The liquid outlet 11 can be plugged into a plug to block it. When drainage is required, the plug is pulled out to discharge the condensate. When the plug is plugged, the condensate will be temporarily stored in the vertical pipe.

[0052] In one embodiment, if Figures 1 to 8As shown, the ventilation equipment includes a ventilation box 5, which is mounted on the side wall of the housing 1. An air inlet is provided at the bottom of the ventilation box 5, and an air outlet is provided on the side wall of the ventilation box 5, which is connected to the ventilation opening on the side wall of the housing 1. A blower is provided in the ventilation box, and the air inlet end of the blower is connected to the air inlet, and the air outlet end of the blower is connected to the air outlet. The blower is used to force ventilation and oxygen supply to the fermented material in the housing 1. Preferably, the bottom end of the ventilation box 5 is flush with the bottom end of the housing 1 to facilitate the parallel connection of the air outlet of the blower and the ventilation chamber of the housing 1 and to reduce wind resistance and ventilation pressure drop.

[0053] In one embodiment, if Figures 1 to 8 As shown, a control panel 51 is installed in the ventilation box 5, and an opening and closing door 52 is provided on the ventilation box 5. The control panel 51 is electrically connected to the drive mechanism 7 and the blower. The control panel 51 is connected to the external power supply with an electric wire, and is also connected to the blower with an electric wire. A display screen is provided on the control panel 51, which is mainly used for real-time display of ventilation data, and real-time regulation of ventilation rate and ventilation time. The opening and closing door 52 can be made of transparent glass so that the ventilation data on the display screen can be read in real time without opening the door. The opening and closing door 52 is usually in a closed state to reduce the influence of external rain and snow on the electronic components in the box. When the opening and closing door 52 is in an open state, the internal electronic components can be inspected and replaced. The blower is located below the control panel 51.

[0054] In one embodiment, if Figures 1 to 8 As shown, the bottom of the box body 1 is provided with universal wheels 15, which are mainly used to support the box body 1 and facilitate the movement of the entire device. The number and position of the universal wheels 15 can be set as needed. For example, the bottom wall of the box body 1 is provided with four universal wheels 15, which are located at the four corners.

[0055] In one embodiment, if Figures 1 to 8 As shown, a lifting ring 13 is provided on the side wall of the box body 1 to facilitate lifting the film-covered fermentation box and moving it to a selected location. The number and layout of the lifting rings 13 are set according to needs. For example, four lifting rings 13 can be set, two in a group, and the two groups are symmetrically arranged on both sides of the side wall of the box body 1.

[0056] In one embodiment, if Figures 1 to 8 As shown, the box body 1 is provided with an opening and closing mechanism for opening and closing the box cover 2. The opening and closing mechanism includes a telescopic cylinder 12. The cylinder body of the telescopic cylinder 12 is hinged to the side wall of the box body 1. The piston rod of the telescopic cylinder 12 is hinged to the box cover 2. When the piston rod of the telescopic cylinder 12 is extended or retracted, the box cover 2 can be rotated upward or downward to achieve opening and closing. The telescopic cylinder 12 can be an electric telescopic cylinder, a pneumatic telescopic cylinder, or a hydraulic telescopic cylinder.

[0057] In one embodiment, if Figures 1 to 8As shown, the box body 1 is a rectangular box, welded together from five sections: the left side, right side, rear side, front side, and bottom side. Each section is primarily composed of a surface layer and an inner layer of stainless steel plates. Multiple horizontal, longitudinal, and vertical stainless steel square tubes are embedded between the surface and inner layers, and the surface and inner layers are welded together by the stainless steel square tubes. A discharge port is cut out on the front side. The diversion trough 8 is primarily composed of U-shaped steel bars. The two arms of the U-shaped steel bar are used to constrain the diversion, and the web of the U-shaped steel bar is used to support the water flow. The diversion trough 8 is tightly fixed within the spacing between the surface and inner layers of the left, right, front, and rear sides of the box body 1. The diversion trough 8 forms a closed rectangular loop, primarily used to guide the scraped condensate in a fixed direction. The rack 71 is fixed to the top of the left, right, rear, and front side walls, located next to the diversion trough 8 and between the diversion trough 8 and the filling port. The box lid 2 includes a rectangular keel 21, semi-elliptical side panels 22, and a waterproof breathable membrane 23. A semi-elliptical side panel 22 is mounted on each of the two wide sides of the rectangular keel 21. The two long sides of the waterproof breathable membrane 23 are fixedly mounted on the two semi-elliptical side panels 22. The two wide sides of the waterproof breathable membrane 23 are fixed to the two long sides of the rectangular keel 21, so that the waterproof breathable membrane 23 forms a dome-shaped roof. Preferably, the rectangular keel 21 is primarily welded from four stainless steel square tubes. The rectangular keel 21 is tightly connected to the snap-fit ​​area of ​​the box body 1 via a sealing gasket. The snap-fit ​​area of ​​the box body 1 may be attached with a sealing gasket, or a sealing gasket may be provided on the rectangular keel 21. This ensures that the box body 1 remains sealed after the box lid 2 is closed. The semi-elliptical side panels 22 are also constructed of stainless steel.

[0058] In one embodiment, if Figures 1 to 8 As shown, the partition 3 can be made of stainless steel plate, and the partition 3 is installed inside the box body 1 by welding. The dense air holes 31 on the partition 3 allow air to pass through to provide oxygen for the fermented material to perform aerobic fermentation.

[0059] In one embodiment, if Figures 1 to 8 As shown, the fermentation chamber occupies more than 90% of the volume of the internal space of the box body 1 and is used to load the fermented material and perform aerobic fermentation. The ventilation chamber occupies less than 10% of the volume of the internal space of the box body 1.

[0060] In one embodiment, if Figures 1 to 8 As shown, the housing 1 can be tilted slightly so that the liquid outlet 11 is at the lowest position, so that the scraped condensate can be directed through the guide groove 8 to the liquid outlet 11 for temporary storage or discharge. The liquid outlet 11 can be directly connected to a sealed container to continuously remove the condensate, or it can be opened regularly to discharge the condensate.

[0061] In one embodiment, if Figures 1 to 8 As shown in the figure, the fermentation process of the film-covered fermentation box is as follows, taking solid manure as an example:

[0062] Step 1: Mix the solid manure and the auxiliary material expansion agent in an appropriate proportion, adjust the moisture content of the mixture to about 65%, the organic matter content to more than 75%, and the C / N ratio to about 20;

[0063] Step 1: Open the box lid 2, close the box door 4, transfer the mixed material into the fermentation chamber of the box body 1, set the scraping step length, round trip frequency and moving speed of the guide bridge 6 of the condensate scraping device, then close the box lid 2 and close the liquid outlet 11 with a rubber stopper;

[0064] Step 1: Connect an external power source to start powering, adjust the appropriate ventilation rate, ventilation time and intermittent time through the control panel 51 of the ventilation box 5, start forced ventilation, and fermentation begins;

[0065] Step 1: As the fermentation enters the temperature rising period, the condensate under the waterproof and breathable membrane 23 increases sharply. Under the action of the driving mechanism 7, the guide bridge 6 moves back and forth under the membrane, during which a large amount of condensate under the membrane is scraped off and collected by the guide groove 8 to the water pipe connected to the liquid outlet 11. Regularly opening the liquid outlet 11 to remove the internal condensate can significantly improve the moisture removal efficiency of the film-covered fermentation box.

[0066] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A film-covered fermentation box, characterized in that: It includes a box body, a box cover and a condensate scraping device; The box cover is hinged on the box body, and the box cover has an arched top, which is mainly composed of a waterproof and breathable membrane. The side wall of the box body is provided with a liquid outlet and a vent for connecting with a ventilation device; A partition is provided in the box body, and the partition divides the inner part of the box body into a fermentation chamber and a ventilation chamber distributed up and down, and an air hole for connecting the fermentation chamber and the ventilation chamber is provided on the partition, and a filling port connected to the fermentation chamber is provided on the top wall of the box body, and the ventilation chamber is connected to the ventilation port; The condensate scraping device includes a guide mechanism and a wiper mechanism, the guide mechanism includes a guide groove surrounded by the filling port, the guide groove is provided with a drain port, the drain port is connected with the liquid outlet, the wiper mechanism includes a guide bridge capable of moving along the axial direction of the arch top and a driving mechanism for driving the guide bridge to move, the guide bridge includes a wiper strip for bonding with a waterproof and breathable membrane and a water receiving ditch for receiving water flow on both sides of the wiper strip, and both ends of the wiper strip and the water receiving ditch extend into the guide groove.

2. The film-covered fermentation box according to claim 1, characterized in that: The driving mechanism includes a rack, a gear and a driving motor. The rack is arranged in parallel beside the strip groove. The driving motor is installed on the guide bridge. The output shaft of the driving motor is coaxially fixedly connected with the gear, and the gear is meshed with the rack.

3. The film-covered fermentation box according to claim 2, characterized in that: It comprises two water receiving grooves and a wiper strip, wherein the two water receiving grooves are arranged on both sides of the wiper strip, the cross sections of the wiper strip and the water receiving groove are both arc-shaped, the end of the arc-shaped cross section of the wiper strip is smoothly connected to the end of the arc-shaped cross section of the water receiving groove, and the curved side of the arc-shaped cross section of the wiper strip faces the waterproof breathable membrane.

4. The film-covered fermentation box according to any one of claims 1 to 3, characterized in that: A discharge port is arranged on the side wall of the box body, a box door is installed at the discharge port, and the discharge port is communicated with the fermentation chamber and the ventilation chamber.

5. The film-covered fermentation box according to claim 1, characterized in that: The liquid outlet is located at the bottom of the side wall of the box body, and the liquid outlet is communicated with the drain port through a drain pipe, and the drain pipe is vertically arranged in the side wall of the box body.

6. The film-covered fermentation box according to claim 1, characterized in that: The ventilation equipment includes a ventilation box installed on the side wall of the box body, an air inlet is provided at the bottom of the ventilation box, an air outlet connected to the air inlet is provided on the side wall of the ventilation box, a blower is provided in the ventilation box, the air inlet end of the blower is connected to the air inlet, and the air outlet end of the blower is connected to the air outlet.

7. The film-covered fermentation box according to claim 6, characterized in that: A control panel and an opening and closing door are installed in the ventilation box, and the control panel is electrically connected to the driving mechanism and the blower.

8. The film-covered fermentation box according to claim 1, characterized in that: The bottom of the box is provided with universal wheels.

9. The film-covered fermentation box according to claim 1, characterized in that: A lifting ring is arranged on the side wall of the box body.

10. The film-covered fermentation box according to claim 1, characterized in that: The box body is provided with an opening and closing mechanism for driving the box cover to open and close. The opening and closing mechanism comprises a telescopic cylinder, a cylinder body of the telescopic cylinder is hinged on the side wall of the box body, and a piston rod of the telescopic cylinder is hinged to the box cover.

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