A segmented insulation shed and method for assisting biological drying of organic solid waste

Abstract

The present invention relates to a segmented insulation shed and method for assisting the biological drying of organic solid waste. The segmented insulation shed includes a plurality of segmented insulation sheds, each of which is provided with a support pulley and a sealing curtain at the lower end, the sealing curtain being located on the inner side of the support pulley; a water collecting trough is provided at the lower end of the inner wall of each segmented insulation shed; when assisting the biological drying of organic solid waste, the plurality of segmented insulation sheds are sequentially overlapped together along the length direction to form a segmented insulation shed as a whole, and the segmented insulation shed also includes detachable sealing plates provided at both ends in the length direction, wherein an air inlet is provided on the sealing plate at one end, and an exhaust port is provided on the sealing plate at the other end. The present invention utilizes a self-designed segmented insulation shed to provide an independent and insulated fermentation environment for composting, and at the same time, in conjunction with intermittent exhaust measures, it can promote the biological drying process of organic solid waste and significantly shorten the biological drying time of organic solid waste. The present invention is particularly suitable for places where organic solid waste is dried in cold environments.

Description

Technical Field

[0001] The present invention belongs to the technical field of biological drying of organic solid waste, and in particular relates to a segmented heat preservation shed and a method for assisting biological drying of organic solid waste. Background Art

[0002] The typical path for cleaning and resource utilization of organic solid waste is to treat and recycle solid waste such as livestock manure and sludge by drying.

[0003] Bio-drying technology uses microorganisms and bioenergy to achieve the purpose of drying organic solid waste. That is, under aerobic conditions, microorganisms degrade the organic matter in the solid waste, and use the heat energy generated by the aerobic fermentation process and ventilation control methods to quickly remove the moisture in it, so that its moisture content is reduced from 55% to 80% to 30% to 45%. At the same time, the high temperature environment generated can kill pathogens to the maximum extent.

[0004] The windrow bio-drying process, which doesn't rely on fermentation tanks, uses manual or mechanical turning of the material to provide oxygen, coupled with forced ventilation using blowers. This enables large-scale, low-cost drying of solid waste. However, in cold and severely frigid winter regions, low ambient temperatures lead to a long aerobic fermentation cycle for organic solid waste, resulting in rapid loss of fermentation heat and, consequently, long bio-drying cycles and poor results.

[0005] Traditional windrow bio-drying processes often rely on open-air drying, which is susceptible to temperature fluctuations. Furthermore, moisture generated by the material diffuses easily in the open air, making indoor exhaust and ventilation difficult and consuming significant amounts of energy. Therefore, finding a low-energy method to accelerate the bio-drying of organic solid waste in cold environments and thereby improve moisture removal efficiency remains a key challenge.

[0006] Therefore, it is very necessary to provide a segmented insulation shed and method for assisting the biological drying of organic solid waste. Summary of the Invention

[0007] To address one or more technical problems existing in the prior art, the present invention aims to provide a segmented, insulated shed and method suitable for use in cold environments to assist in the biological drying of organic solid waste. The present invention utilizes a self-designed segmented, insulated shed to provide an independent, insulated fermentation environment for composting, and, in conjunction with intermittent steam exhaust measures, effectively promotes the biological drying of organic solid waste and significantly shortens the time required for biological drying. The present invention is suitable for small- to medium-sized sites where organic solid waste, such as livestock manure and sludge, is bio-dried in strips, and is particularly suitable for drying organic solid waste in cold environments.

[0008] In a first aspect, the present invention provides a segmented insulation shed for assisting the biological drying of organic solid waste, the segmented insulation shed comprising a plurality of segmented insulation sheds, each of the segmented insulation sheds being provided with a support pulley and a sealing curtain at the lower end, the sealing curtain being located on the inner side of the support pulley; a water collecting trough being provided at the lower end of the inner wall of each segmented insulation shed; when assisting the biological drying of organic solid waste, the plurality of segmented insulation sheds are overlapped together in sequence along the length direction to form the segmented insulation shed as a whole, the segmented insulation shed also comprising detachable sealing plates arranged at both ends in the length direction, wherein an air inlet is provided on the sealing plate at one end, and a steam exhaust port is provided on the sealing plate at the other end.

[0009] Preferably, each segmented insulation shed includes an insulation frame and an insulation layer arranged on the outside of the insulation frame; preferably, a waterproof canvas layer is arranged between the insulation layer and the insulation frame; preferably, the insulation frame is made of corrosion-resistant metal material; preferably, the insulation layer is made of rubber-plastic board or rock wool insulation material.

[0010] Preferably, each segmented insulation shed has an inverted V-shaped structure or an arc-shaped structure; preferably, each segmented insulation shed has an inverted V-shaped structure, and the inclination angle of the inverted V-shaped structure is 30° to 60°.

[0011] Preferably, among the multiple segmented insulation sheds that are overlapped together, the height of each segmented insulation shed decreases along the length direction.

[0012] Preferably, the water collection tank is detachably arranged at the lower end of the inner wall of the segmented thermal insulation shed.

[0013] Preferably, the air inlet is connected to a ventilation duct, and the steam exhaust port is connected to a steam extraction duct.

[0014] Preferably, when assisting the biological drying of organic solid waste, a plurality of oxygen supply ventilation ducts for supplying oxygen are arranged side by side in the interior of the segmented heat preservation shed, and a strip fermentation pile is placed above the oxygen supply ventilation ducts.

[0015] In a second aspect, the present invention provides a method for assisting the biological drying of organic solid waste. The method is performed using the segmented insulation shed for assisting the biological drying of organic solid waste described in the first aspect of the present invention. The method comprises the following steps:

[0016] (1) stacking organic solid waste with a moisture content of 55% to 80% in a strip pile above a plurality of oxygen supply ventilation ducts arranged side by side to form a strip pile fermentation pile;

[0017] (2) Laying together a plurality of segmented insulation sheds along the length direction from one end of the fermentation pile to form the segmented insulation shed as a whole, and providing sealing plates at both ends of the segmented insulation shed so that the air inlet provided on the sealing plate at one end is connected to the ventilation duct, and the steam exhaust port provided on the sealing plate at the other end is connected to the steam extraction duct;

[0018] (3) allowing the strand fermentation pile to undergo aerobic fermentation under the condition that the ventilation duct and the steam extraction duct are in a closed state;

[0019] (4) During the aerobic fermentation process, the temperature of the fermentation pile continues to rise. When the temperature of the fermentation pile reaches above 55°C and remains stable, the ventilation duct and the steam extraction duct are opened to extract steam for 10 to 60 minutes to discharge the water vapor in the segmented insulation shed and reduce the temperature of the fermentation pile to no less than 45°C. Then, the steam extraction is stopped, and the fermentation pile continues to accumulate heat and the temperature continues to rise.

[0020] (5) After repeating step (4) 3 to 10 times, open the sealing plate at one end of the segmented insulation shed, and choose whether to retract the segmented insulation shed section by section and turn the pile according to the moisture content and / or fermentation status of the fermentation pile;

[0021] (6) If turning the pile is not required, directly repeat steps (4) and (5) until the moisture content of the organic solid waste is reduced to 30-45%; if turning the pile is required, after turning the pile is completed, the multiple segmented insulation sheds are re-connected together to form the segmented insulation shed as a whole, and sealing plates are provided at both ends of the segmented insulation shed, and repeat steps (4) and (5) until the moisture content of the organic solid waste is reduced to 30-45%.

[0022] Preferably, during aerobic fermentation, water vapor in the segmented insulation shed condenses on the inner wall of the segmented insulation shed to form condensed water, and the condensed water flows into the water collection tank along the wall surface; optionally, during the turning process, the condensed water in the water collection tank is discharged.

[0023] Preferably, the compost turning is manual or mechanical; the height of the strip fermentation pile is not less than 1.5 meters and the length is not more than 20 meters.

[0024] Compared with the prior art, the present invention has at least the following beneficial effects:

[0025] (1) The present invention adopts a self-designed segmented insulation shed to assist in drying the windrow compost, which is highly applicable in cold and severe cold conditions. Through the design of a movable and retractable segmented insulation shed, the windrow fermentation pile is sealed, insulated and isolated, which greatly reduces the impact of the external environment on the drying process, while reducing the difficulty and energy consumption of the steam exhaust operation, and by reducing the heat loss of the material during the fermentation process, the heat accumulation rate of the material is increased, and the high-temperature period of fermentation is extended.

[0026] (2) The segmented heat preservation shed in the present invention adopts an inverted V-shaped or arc-shaped design, and a water collection trough is provided on the inner side of the heat preservation shed, which can make the water droplets condensed on the inner wall slide to the water collection trough provided below, preventing the condensed water from dripping back into the fermentation pile, thereby improving the material drying rate; the lower end of the inner wall of the heat preservation shed of the present invention is also provided with a supporting pulley and a sealing curtain, the supporting pulley is used to move and support the heat preservation shed, and control the extension and stacking and storage of the heat preservation shed, and the sealing curtain is located on the inner side of the supporting pulley to prevent heat loss and separate the material and the supporting pulley to prevent the material from contacting and hindering the movement of the supporting pulley.

[0027] (3) The present invention designs a segmented insulation shed and a matching intermittent steam exhaust process. Through the cyclic drying steps of sealing and heat preservation, heat accumulation, dehumidification and drying, turning and ventilation, and separation of condensed water, the efficiency of strip-type biological drying is greatly improved, and the drying time can be shortened by 35% to 50%.

[0028] (4) The present invention has a simple structure and low manufacturing cost, is suitable for strip-type biological drying sites, and is easy to promote on a large scale. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings of the present invention are provided for illustrative purposes only, and the proportions, sizes, and quantities of the various parts in the drawings may not necessarily be consistent with the actual products.

[0030] Figure 1 Schematic diagram of the structure of a segmented heat preservation shed for assisting the biological drying of organic solid waste provided in some specific embodiments of the present invention; in the figure, the sealing plate, air inlet and exhaust port are not shown;

[0031] Figure 2 Schematic diagram of the structure of the drainage trough and the sealing curtain in some specific embodiments of the present invention;

[0032] Figure 3 This is a structural schematic diagram of a segmented heat preservation shed for assisting biological drying of organic solid waste provided in some specific embodiments of the present invention from another perspective; in the figure, the supporting pulley is not shown.

[0033] In the figure: 1: Segmented insulation shed; 2: Strand fermentation pile; 3: Insulation shed; 4: Insulation layer; 5: Sealing curtain; 6: Support pulley; 7: Water collecting trough; 8: Air inlet; 9: Steam exhaust; 10: Sealing plate. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0035] In a first aspect, the present invention provides a segmented heat preservation shed for assisting the biological drying of organic solid waste, for example, Figures 1 to 3 As shown; the segmented insulation shed includes multiple segmented insulation sheds 1, and the lower end of each segmented insulation shed 1 is provided with a supporting pulley 6 and a sealing curtain 5, the sealing curtain 5 is located on the inner side of the supporting pulley 6, the supporting pulley 6 is used to move and support the segmented insulation shed 1, and is convenient for the extension, overlap and storage of the segmented insulation shed 1, and the sealing curtain 5 is located on the inner side of the supporting pulley 6, for example, Figure 2 As shown, it is used to prevent heat loss, separate materials and support pulley 6, and prevent materials (organic solid waste) from contacting and hindering the movement of support pulley 6; in the present invention, the insulation shed adopts a multi-section design. The present invention does not make specific restrictions on the size of the segmented insulation shed. Those skilled in the art can make routine adjustments based on the size of the material stack. The length of each segmented insulation shed is, for example, 2 to 5 meters, and the height is different. It can be stretched and overlapped by the support pulley for use and stacked for storage; a water collection tank 7 is provided at the lower end of the inner wall of each segmented insulation shed 1; in the present invention, the water collection tank 7 is located on the inner side of the segmented insulation shed 1, and is used to collect condensed water and prevent the condensed water from flowing back into the stack fermentation pile formed by the organic solid waste; when assisting the biological drying of organic solid waste, multiple The segmented insulation shed 1 is overlapped together in sequence along the length direction to form the segmented insulation shed as a whole. The segmented insulation shed also includes detachable sealing plates 10 arranged at both ends in the length direction, wherein the sealing plate 10 at one end is provided with an air inlet 8, and the sealing plate 10 at the other end is provided with a steam exhaust port 9. In the present invention, the air inlet 8 is connected to a ventilation duct, for example, for ventilating the segmented insulation shed, and the steam exhaust port 9 is connected to a steam extraction pipe (also referred to as a steam exhaust pipe), for example, for extracting steam from the segmented insulation shed to discharge water vapor in the segmented insulation shed; the present invention uses high-strength sealing plates at the front and rear ends of the segmented insulation shed for detachable sealing, and at both ends are opened (air inlet and steam exhaust port) for operations such as steam extraction. The segmented heat preservation shed for assisting biological drying of organic solid waste in the present invention is particularly suitable for places where organic solid waste is dried in cold environments (e.g., -28°C to 0°C cold environments), and can also be referred to as a segmented heat preservation shed for assisting biological drying of organic solid waste in cold environments.

[0036] The present invention adopts a self-designed segmented insulation shed to assist in drying the windrow compost, which is highly applicable in cold and severe cold conditions; through the design of the movable and retractable segmented insulation shed, the windrow fermentation pile is sealed, insulated and isolated, which greatly reduces the influence of the external environment on the drying process, and at the same time reduces the difficulty and energy consumption of the exhaust operation, and by reducing the heat loss of the material during the fermentation process, increases the heat accumulation rate of the material, and prolongs the high-temperature fermentation period; in addition, the insulation shed adopts a multi-stage design, which avoids the problems of the integral insulation shed design that are inconvenient to operate and occupy space due to the generally long material windrows and limited space; the segmented insulation shed in the present invention The greenhouse adopts an inverted V-shaped or arc-shaped design, and a water collection trough is provided on the inner side of the insulation shed, which can allow the water droplets condensed on the inner wall to slide to the water collection trough provided below, preventing the condensed water from dripping back into the fermentation pile, thereby improving the material drying rate; the lower end of the inner wall of the insulation shed of the present invention is also provided with a supporting pulley and a sealing curtain, the supporting pulley is used to move and support the insulation shed, and control the extension and stacking and storage of the insulation shed, and the sealing curtain is located on the inner side of the supporting pulley part, which is used to prevent heat loss and separate the material and the supporting pulley to prevent material contact and hinder the movement of the supporting pulley; the present invention has a simple structure and low manufacturing cost, is suitable for strip-stack type biological drying sites, and is easy to promote on a large scale.

[0037] According to some preferred embodiments, each segmented insulation shed 1 includes an insulation frame 3 and an insulation layer 4 arranged on the outside of the insulation frame 3; the present invention does not specifically limit the thickness of the insulation layer 4, which can be selected according to the strength of the insulation frame 3 and the ambient temperature. Preferably, the thickness of the insulation layer 4 is not less than 5 cm; preferably, a waterproof canvas layer is provided between the insulation layer 4 and the insulation frame 3, and the thickness of the waterproof canvas layer can be, for example, 0.5 to 1.5 mm; preferably, the insulation frame 3 is made of corrosion-resistant metal material; preferably, the insulation layer 4 is made of rubber-plastic board or rock wool insulation material (such as polyurethane insulation material).

[0038] According to some specific implementation methods, the insulation layer 4 can be insulated with insulation materials such as rubber-plastic boards and rock wool, and can be selected according to the strength of the insulation scaffolding and the ambient temperature, and the thickness is not less than 5 cm; the insulation layer 4 is covered with a material with airtightness, watertightness, high temperature resistance, corrosion resistance and other properties, such as preferably a tarpaulin material such as high-strength waterproof canvas, which is connected to the insulation scaffolding 3; the insulation scaffolding 3 adopts a rigid corrosion-resistant metal bracket; in the present invention, when each segmented insulation shed is unfolded and overlapped, in order to ensure sealing, the segmented insulation sheds can be partially overlapped, for example, to prevent heat loss.

[0039] According to some preferred embodiments, each segmented insulation shed 1 is in an inverted V-shaped structure or an arc-shaped structure; preferably, each segmented insulation shed 1 is in an inverted V-shaped structure, and the inclination angle of the inverted V-shaped structure is 30° to 60°; in the present invention, each segmented insulation shed and the segmented insulation shed as a whole are in an inverted V-shaped structure or an arc-shaped structure, so that the condensed water on the inner wall can flow down the wall to prevent water droplets from falling back into the strip fermentation pile; the inclination angle is designed according to the slope of the material stacking, and is generally controlled at 30° to 60°.

[0040] According to some preferred embodiments, in a plurality of segmented insulation sheds 1 overlapped together, the height of each segmented insulation shed 1 decreases along the length direction; in the present invention, the height of each segmented insulation shed is different, which is convenient for stretching, overlapping, use and stacking for storage through supporting pulleys; in the present invention, for example, in two adjacent segmented insulation sheds, the bottom of the segmented insulation shed with a lower height corresponds to the reserved position at the water collection tank of the segmented insulation shed with a higher height, that is, the reserved position at the water collection tank, which ensures that the segmented insulation sheds can be stretched, overlapped, stacked and stored normally, and will not hinder the movement of the insulation sheds.

[0041] According to some preferred embodiments, the water collection tank 7 is detachably arranged at the lower end of the inner wall of the segmented insulation shed 1; in the present invention, the water collection tank is used to collect condensed water and prevent the condensed water from flowing back into the strip pile fermentation pile; the water collection tank in the present invention is different from the exudate collection and absorption device arranged below the fermentation pile in the prior art. This exudate collection and absorption device is used to collect exudate seeping from the fermentation pile due to gravity, while the water vapor in the air still has the problem of condensing into droplets and flowing back to the strip pile fermentation pile, which will affect the efficiency of biological drying of organic solid waste.

[0042] According to some preferred embodiments, the air inlet 8 is connected to the ventilation duct. In the present invention, the ventilation duct is connected to the outside air; the steam exhaust port 9 is connected to the steam extraction duct. In the present invention, the steam extraction duct is connected to the steam extraction device (a fan for steam extraction).

[0043] According to some preferred embodiments, when assisting the biological drying of organic solid waste, a plurality of oxygen supply ventilation ducts for oxygen supply are arranged side by side in the internal area of ​​the segmented insulation shed, and a strip fermentation pile 2 is placed above the oxygen supply ventilation ducts; in the present invention, a plurality of oxygen supply ventilation ducts can be buried side by side on the surface of the site in the internal area of ​​the segmented insulation shed, and opened regularly for oxygen supply.

[0044] In a second aspect, the present invention provides a method for assisting the biological drying of organic solid waste. The method is performed using the segmented insulation shed for assisting the biological drying of organic solid waste described in the first aspect of the present invention. The method comprises the following steps:

[0045] (1) organic solid waste having a moisture content of 55% to 80% is stacked in a strip-stack above a plurality of oxygen supply ventilation ducts arranged side by side for oxygen supply to form a strip-stack fermentation pile; in the present invention, the oxygen supply ventilation duct is, for example, connected to the outside air. Preferably, vertical air flow holes are formed in the strip-stack fermentation pile, and the air flow holes are connected to the ventilation holes of the oxygen supply ventilation duct to facilitate aerobic fermentation in the strip-stack fermentation pile. In the present invention, the air flow holes can be, for example, air flow holes directly pierced in the strip-stack fermentation pile and connected to the ventilation holes of the oxygen supply ventilation duct;

[0046] (2) overlapping a plurality of segmented insulation sheds along the length direction from one end of the fermentation pile to form the segmented insulation shed as a whole, so that the plurality of segmented insulation sheds cover the fermentation pile section by section, and providing sealing plates at both ends of the segmented insulation shed, so that the air inlet provided on the sealing plate at one end is connected to the ventilation duct, and the steam exhaust port provided on the sealing plate at the other end is connected to the steam extraction duct;

[0047] (3) allowing the strand fermentation pile to undergo aerobic fermentation under the condition that the ventilation duct and the steam extraction duct are in a closed state;

[0048] (4) During the aerobic fermentation process, the temperature of the strip pile fermentation pile continues to rise. When the temperature of the strip pile fermentation pile reaches 55°C or above and remains stable (i.e., the temperature reaches 55°C or above and remains stable), preferably reaches 60-65°C and remains stable, the ventilation duct and the steam extraction duct are opened to extract steam for 10-60 minutes to discharge the water vapor (part of the water vapor) in the segmented insulation shed and reduce the temperature of the strip pile fermentation pile to not less than 45°C. Then, the steam extraction is stopped, and the strip pile fermentation pile continues to accumulate heat and the temperature continues to rise. In the present invention, for example, a temperature monitor is provided in the strip pile fermentation pile for real-time monitoring of the temperature of the strip pile fermentation pile. In the present invention, when extracting steam, the ventilation duct and the steam extraction duct are opened; the ventilation duct and the steam extraction duct are closed to stop extracting steam. Whether to stop extracting steam is determined by the temperature of the strip pile fermentation pile, but it is necessary to ensure that the temperature is not less than 45°C or even not less than 50°C. For example, the steam extraction can be stopped when the temperature drops to 46-50°C.

[0049] (5) After repeating step (4) 3 to 10 times, open the sealing plate at one end of the segmented heat preservation shed, and choose whether to fold up the segmented heat preservation shed section by section to turn the pile according to the moisture content and / or fermentation status of the pile; specifically, judging according to the moisture content of the pile means: when the moisture content of the outer surface of the pile is significantly lower than the moisture content inside the pile, for example, when the moisture content difference between the outer surface of the pile and the interior of the pile reaches more than 10%, it is necessary to turn the pile. This is because the moisture on the outer surface of the pile evaporates more, but the moisture inside the pile evaporates less, and the moisture content inside the pile is higher and The high temperature causes the problem that moisture and heat inside the fermentation pile cannot be dissipated, and turning the pile is required at this time. In the present invention, for example, the segmented heat preservation shed further includes a moisture content detection device for detecting the moisture content of the fermentation pile. Judging according to the fermentation state of the fermentation pile means judging whether turning the pile is required based on whether the fermentation pile is still in a fermentation state that can heat up normally and quickly. If the fermentation pile is short of oxygen and the temperature cannot rise, turning the pile is required. Generally, the turning frequency is 1 to 2 times a day. If the external temperature is low (sub-zero in winter), those skilled in the art can appropriately reduce the turning frequency as needed.

[0050] (6) If turning the pile is not required, directly repeat steps (4) and (5) until the moisture content of the organic solid waste is reduced to 30-45%; if turning the pile is required, after turning the pile is completed, the multiple segmented insulation sheds are re-connected together to form the segmented insulation shed as a whole, and sealing plates are provided at both ends of the segmented insulation shed, and repeat steps (4) and (5) until the moisture content of the organic solid waste is reduced to 30-45%.

[0051] The second aspect of the present invention is to propose a method for assisting the biological drying of organic solid waste using a segmented insulation shed in a cold environment, using a self-designed segmented insulation shed to provide an independent insulation fermentation environment for the compost, and at the same time cooperating with an intermittent exhaust (extraction) drying method and combining with a turning operation to achieve the effect of rapid drying of organic solid waste. Through the cyclic drying steps of sealing and heat preservation, heat accumulation, dehumidification and drying, turning and ventilation, and separation of condensed water, the efficiency of strip-type biological drying is greatly improved, and the drying time can be shortened by 35% to 50%. The present invention has found that the segmented insulation shed in the present invention, when combined with the operation of the above-mentioned steps (1) to (6) of the present invention, can more effectively promote the biological drying process of organic solid waste, and is more conducive to shortening the time of biological drying of organic solid waste.

[0052] According to some preferred embodiments, during the aerobic fermentation process, the water vapor (part of the water vapor) in the segmented insulation shed condenses on the inner wall of the segmented insulation shed to form condensed water, and the condensed water flows into the water collection tank along the wall surface; optionally, during the turning process, the condensed water in the water collection tank is discharged.

[0053] According to some preferred embodiments, the compost turning is manual or mechanical; and / or the height of the strip fermentation pile is not less than 1.5 meters and the length is not more than 20 meters.

[0054] According to some specific embodiments, the method of assisting biological drying of organic solid waste of the present invention specifically comprises the following steps: aerobic fermentation and cyclic drying in a segmented insulation shed,

[0055] 1. Aerobic fermentation in a segmented insulation shed includes the following steps:

[0056] ① After pretreatment, organic solid waste such as manure and sludge with a moisture content of 55% to 80% is piled in a strip pile in an open area. A plurality of oxygen supply ventilation ducts for oxygen supply are buried side by side on the surface of the open area. The organic solid waste is located above the oxygen supply ventilation duct to form a strip pile fermentation pile. The height of the strip pile is required to be not less than 1.5m and the length is not more than 20m.

[0057] ② Starting from one end of the fermentation pile, overlap the segmented insulation shed in sequence along the length direction to cover the material in sections, and overlap between adjacent segmented insulation sheds in sequence to keep the interior closed; use sealing plates to seal both ends of the segmented insulation shed formed as a whole, and make holes in the sealing plates to open air inlets and exhaust ports to install and connect ventilation ducts and steam extraction ducts respectively. In the initial stage of aerobic fermentation of the raw materials, keep the ventilation ducts and steam extraction ducts in a closed state to prevent heat loss, and then start aerobic fermentation.

[0058] Second, the cycle drying includes the following steps:

[0059] ① The material undergoes aerobic fermentation in a segmented insulation shed. Due to the small internal space and insulation treatment, the heat generated by the fermentation accumulates rapidly and the material temperature continues to rise. During the fermentation process, the humid air in the segmented insulation shed condenses on the inner wall to form droplets, which flow into the water collection tank along the wall.

[0060] ② When the material temperature reaches a stable state above 55°C, forced steam extraction is carried out from one end of the sectional insulation shed. The extraction is maintained for 10 to 60 minutes to expel the accumulated water vapor in the sectional insulation shed, and the material temperature is subsequently reduced. At this time, the temperature of the windrow fermentation pile is required to be no less than 45°C. After that, the ventilation duct and steam extraction duct are closed, steam extraction is stopped, and heat accumulation continues, repeating the cycle.

[0061] ③ Depending on the material size and the temperature of the windrow, after 3 to 10 cycles of steam extraction, open the sealing plate at one end, gradually retract the sectional insulation shed, and begin turning the pile. Turning can be done manually or mechanically. During turning, open the sump to drain condensed water. After turning, unfold the sectional insulation shed again and repeat the above steps until the material moisture content reaches the desired standard (30% to 45%).

[0062] The present invention will be further described below by way of examples, but the protection scope of the present invention is not limited to these examples.

[0063] Example 1

[0064] This embodiment provides a segmented heat preservation shed and method for assisting the biological drying of organic solid waste. Figures 1 to 3 As shown; the segmented insulation shed includes multiple segmented insulation sheds, and the lower end of each segmented insulation shed is provided with a supporting pulley and a sealing curtain, and the sealing curtain is located on the inner side of the supporting pulley; the lower end of the inner wall of each segmented insulation shed is detachably provided with a water collecting trough; when assisting the biological drying of organic solid waste, multiple segmented insulation sheds are sequentially overlapped together along the length direction to form the segmented insulation shed as a whole, and the segmented insulation shed also includes detachable sealing plates arranged at both ends in the length direction, wherein an air inlet is provided on the sealing plate at one end, and a steam exhaust port is provided on the sealing plate at the other end, the air inlet is connected to the ventilation duct, and the steam exhaust port It is connected to the steam extraction pipe; each segmented insulation shed includes an insulation frame and an insulation layer arranged on the outside of the insulation frame, the insulation layer adopts a rubber-plastic board with a thickness of 10 cm, and a waterproof canvas layer is arranged between the insulation layer and the insulation frame, and the thickness of the waterproof canvas layer is 1 mm; each segmented insulation shed is an inverted V-shaped structure, and the inclination angle of the inverted V-shaped structure is 45°. In the multiple segmented insulation sheds overlapped together, the height of each segmented insulation shed decreases along the length direction; in two adjacent segmented insulation sheds, the bottom of the segmented insulation shed with a lower height corresponds to the reserved position at the water collection tank of the segmented insulation shed with a higher height.

[0065] The segmented heat preservation shed provided in this embodiment is used in a farm in the Central Plains to dry pig manure. The drying site covers an area of ​​about 1000m 2 The factory building itself has a ventilation and exhaust structure design. Multiple large-diameter exhaust pipes are installed above the factory building, and multiple oxygen supply ventilation pipes are installed side by side on the ground. Under the conditions of outdoor ambient temperature of -10 to 8°C in winter and humidity inside the factory building exceeding 80% for a long time, the segmented insulation shed is used in conjunction with the auxiliary organic solid waste biological drying method to biologically dry pig manure, including the following steps:

[0066] ① Organic solid waste pig manure with a moisture content of 77.8% and a carbon-nitrogen ratio of 26 is piled in strips above multiple oxygen supply ventilation ducts arranged side by side on the floor of the factory to form a strip fermentation pile; the strip fermentation pile is 1.5m high, 2.2m wide and 12m long.

[0067] ② Starting from one end of the strip fermentation pile, multiple segmented insulation sheds are overlapped together in sequence along the length direction to form the segmented insulation shed as a whole, so that multiple segmented insulation sheds cover the top of the strip fermentation pile section by section, and sealing plates are set at both ends of the segmented insulation shed, so that the air inlet opened on the sealing plate at one end is connected to the ventilation duct, and the steam exhaust port opened on the sealing plate at the other end is connected to the steam extraction duct.

[0068] ③ Under the condition that the ventilation duct and the steam extraction duct are in a closed state, the strip fermentation pile is subjected to aerobic fermentation; during the aerobic fermentation process, part of the water vapor in the segmented insulation shed condenses on the inner wall of the segmented insulation shed to form condensed water, and the condensed water flows into the water collection tank along the wall.

[0069] ④ During the aerobic fermentation process, the temperature of the strip pile fermentation pile continues to rise. When the temperature of the strip pile fermentation pile reaches 60°C and remains stable, the ventilation duct and the steam extraction duct are opened to extract steam to discharge part of the water vapor in the segmented insulation shed and reduce the temperature of the strip pile fermentation pile to 46°C. Then the steam extraction is stopped, and the strip pile fermentation pile continues to accumulate heat and the temperature continues to rise.

[0070] ⑤ After repeating step ④ 6 times, the sealing plate at one end of the segmented insulation shed is opened, and it is detected that the temperature of the fermentation pile cannot rise, and the segmented insulation shed is folded up section by section to turn the pile, wherein the turning is performed mechanically by a turning machine, and during the turning process, the condensed water in the sump is discharged.

[0071] ⑥ After the turning is completed, multiple segmented insulation sheds are reconnected along the length direction starting from one end of the fermentation pile to form a segmented insulation shed as a whole, and sealing plates are set at both ends of the segmented insulation shed. Steps ④ and ⑤ are repeated until the moisture content of the organic solid waste is reduced to 42%.

[0072] The method and process for auxiliary biological drying of organic solid waste using the segmented insulation shed in this embodiment can achieve the following effects: after testing, the farm has achieved rapid drying of pig manure in the cold winter environment, and the moisture content of the pig manure has been reduced to 42%. The required drying time is shortened by 37% compared with the open-air drying method, and the energy consumption of the equipment is reduced by 40%. Among them, open-air drying refers to drying the pig manure with a moisture content of 7 under the conditions of an outdoor ambient temperature of -10 to 8°C in winter and a humidity inside the factory building that is higher than 80% for a long time. Organic solid waste pig manure with a carbon-nitrogen ratio of 7.8% and a pig manure carbon-nitrogen ratio of 26 is piled in a strip pile above a plurality of oxygen supply ventilation ducts arranged side by side on the floor of a factory building to form a strip pile fermentation pile for aerobic fermentation; the strip pile fermentation pile is 1.5 meters high, 2.2 meters wide, and 12 meters long, and is biologically dried by utilizing the ventilation and exhaust structure design of the factory building until the moisture content of the pig manure is reduced to 42%. At the same time, regular turning operation is retained, with a turning frequency of twice a day, and the open-air drying cycle is 18 days.

[0073] Example 2

[0074] This embodiment provides a segmented insulation shed and method for assisting the biological drying of organic solid waste. The structure of the segmented insulation shed is substantially the same as that of Example 1, except that the insulation layer of the segmented insulation shed in this embodiment is made of a 20 cm thick polyurethane insulation material.

[0075] The segmented insulation shed provided in this embodiment was applied to a beef cattle breeding base in Northeast China (the breeding base originally used the traditional film-covered biological drying method) to dry a mixture of cow dung and rice husks. A plurality of oxygen supply ventilation ducts for oxygen supply were arranged side by side on the floor of the drying plant. The outdoor ambient temperature in winter in this area is -28 to -15°C. The segmented insulation shed was used in conjunction with the auxiliary organic solid waste biological drying method to biologically dry the mixture of cow dung and rice husks, including the following steps:

[0076] ① Screening and pre-treating a mixture of cow dung and rice husks having a moisture content of 75% and a carbon-nitrogen ratio of 20 to obtain organic solid waste with a moisture content reduced from 75% to 62%; then stacking the organic solid waste in strips on the floor of a factory building above a plurality of oxygen supply ventilation ducts arranged side by side for oxygen supply to form a strip fermentation pile; the strip fermentation pile has a height of 1.6m, a width of 2.3m, and a length of 15m.

[0077] ② Starting from one end of the strip fermentation pile, multiple segmented insulation sheds are overlapped together in sequence along the length direction to form the segmented insulation shed as a whole, so that multiple segmented insulation sheds cover the top of the strip fermentation pile section by section, and sealing plates are set at both ends of the segmented insulation shed, so that the air inlet opened on the sealing plate at one end is connected to the ventilation duct, and the steam exhaust port opened on the sealing plate at the other end is connected to the steam extraction duct.

[0078] ③ Under the condition that the ventilation duct and the steam extraction duct are in a closed state, the strip fermentation pile is subjected to aerobic fermentation; during the aerobic fermentation process, part of the water vapor in the segmented insulation shed condenses on the inner wall of the segmented insulation shed to form condensed water, and the condensed water flows into the water collection tank along the wall.

[0079] ④ During the aerobic fermentation process, the temperature of the strip pile fermentation pile continues to rise. When the temperature of the strip pile fermentation pile reaches 60°C and remains stable, the ventilation duct and the steam extraction duct are opened to extract steam to discharge part of the water vapor in the segmented insulation shed and reduce the temperature of the strip pile fermentation pile to 46°C; then, the steam extraction is stopped, and the strip pile fermentation pile continues to accumulate heat and the temperature continues to rise.

[0080] ⑤ After repeating step ④ 8 times, the sealing plate at one end of the segmented insulation shed is opened, and it is detected that the temperature of the fermentation pile cannot rise, and the segmented insulation shed is folded up section by section to turn the pile, wherein the turning is done manually, and during the turning process, the condensed water in the sump is discharged.

[0081] ⑥ After the turning is completed, multiple segmented insulation sheds are reconnected along the length direction starting from one end of the strip fermentation pile to form a segmented insulation shed as a whole, and sealing plates are set at both ends of the segmented insulation shed. Steps ④ and ⑤ are repeated until the moisture content of the organic solid waste is reduced to 45%.

[0082] The method and process for auxiliary biological drying of organic solid waste using the segmented insulation shed of this embodiment can achieve the following effects: In severe cold environments, the temperature of the cow dung and rice husk mixture rises slowly. The segmented insulation shed and method of the present invention can effectively increase the temperature of the material during the high-temperature period, shortening the required drying time. Ultimately, the moisture content of the cow dung and rice husk mixture can be reduced to 45%. Compared to the organic solid waste with a moisture content of 62% obtained after screening and pretreatment of the cow dung and rice husk mixture with a moisture content of 75% and a carbon-nitrogen ratio of 20 using the film drying method, the moisture content is reduced to 45%. The required drying time of this embodiment is shortened by 40%, with the film drying cycle being 25 days.

[0083] Example 3

[0084] The present embodiment provides a segmented insulation shed and method for assisting the biological drying of organic solid waste. The segmented insulation shed includes multiple segmented insulation sheds, each of which is provided with a support pulley and a sealing curtain at the lower end, and the sealing curtain is located on the inner side of the support pulley; when assisting the biological drying of organic solid waste, multiple segmented insulation sheds are sequentially overlapped together along the length direction to form the segmented insulation shed as a whole, and the segmented insulation shed also includes detachable sealing plates at both ends in the length direction, wherein an air inlet is provided on the sealing plate at one end, and an exhaust port is provided on the sealing plate at the other end, and the air inlet is connected to the vent. The exhaust port is connected to the steam extraction pipe; each segmented insulation shed includes an insulation frame and an insulation layer arranged on the outside of the insulation frame, the insulation layer adopts a rubber-plastic board with a thickness of 10 cm, and a waterproof canvas layer is arranged between the insulation layer and the insulation frame, and the thickness of the waterproof canvas layer is 1 mm; each segmented insulation shed has an inverted V-shaped structure, and the inclination angle of the inverted V-shaped structure is 45°. In the multiple segmented insulation sheds overlapped together, the height of each segmented insulation shed decreases along the length direction.

[0085] The segmented heat preservation shed provided in this embodiment is used in a farm in the Central Plains to dry pig manure. The drying site covers an area of ​​about 1000m 2 The factory building has its own ventilation and exhaust structure design. Multiple large-diameter exhaust pipes are installed above the factory building, and multiple oxygen supply ventilation pipes are installed side by side on the ground for oxygen supply. Under the conditions of outdoor ambient temperature of -10 to 8°C in winter and humidity inside the factory building exceeding 80% for a long time, the segmented insulation shed is used in conjunction with the following method to biologically dry pig manure, including the following steps:

[0086] ① Organic solid waste pig manure with a moisture content of 77.8% and a carbon-nitrogen ratio of 26 is piled in strips above multiple oxygen supply ventilation ducts arranged side by side on the floor of the factory to form a strip fermentation pile; the strip fermentation pile is 1.5m high, 2.2m wide and 12m long.

[0087] ② Starting from one end of the strip fermentation pile, multiple segmented insulation sheds are overlapped together in sequence along the length direction to form the segmented insulation shed as a whole, so that multiple segmented insulation sheds cover the top of the strip fermentation pile section by section, and sealing plates are set at both ends of the segmented insulation shed, so that the air inlet opened on the sealing plate at one end is connected to the ventilation duct, and the steam exhaust port opened on the sealing plate at the other end is connected to the steam extraction duct.

[0088] ③ Under the condition that the ventilation duct and the steam extraction duct are in a closed state, the strip fermentation pile is subjected to aerobic fermentation; during the aerobic fermentation process, part of the water vapor in the segmented insulation shed condenses on the inner wall of the segmented insulation shed to form condensed water that flows into the ground and the fermentation pile.

[0089] ④ During the aerobic fermentation process, the temperature of the strip pile fermentation pile continues to rise. When the temperature of the strip pile fermentation pile reaches 60°C, the ventilation duct and the steam extraction duct are opened to extract steam to discharge part of the water vapor in the segmented insulation shed and reduce the temperature of the strip pile fermentation pile to 46°C. Then the steam extraction is stopped, and the strip pile fermentation pile continues to accumulate heat and the temperature continues to rise.

[0090] ⑤ After repeating step ④ 6 times, the sealing plate at one end of the segmented insulation shed is opened, and it is detected that the temperature of the fermentation pile cannot rise, and the segmented insulation shed is folded up section by section to turn the pile, wherein the turning is performed mechanically by a turning and throwing machine.

[0091] ⑥ After the turning is completed, multiple segmented insulation sheds are reconnected along the length direction starting from one end of the fermentation pile to form a segmented insulation shed as a whole, and sealing plates are set at both ends of the segmented insulation shed. Steps ④ and ⑤ are repeated until the moisture content of the organic solid waste is reduced to 42%.

[0092] The effect of biological drying of organic solid waste using the segmented insulation shed in this embodiment: after testing, the moisture content of pig manure was reduced to 42%, the required drying time was shortened by 30% relative to the open-air drying method, and the energy consumption of the equipment was reduced by 32%; wherein, open-air drying refers to the outdoor ambient temperature of -10 to 8 ° C in winter and the humidity inside the factory building is higher than 80%. Under the conditions of the carbon-nitrogen ratio of 26, organic solid waste pig manure with a moisture content of 77.8% and a pig manure carbon-nitrogen ratio is stacked in a strip pile on the floor of the factory building above a plurality of oxygen supply ventilation ducts arranged side by side for oxygen supply, forming a strip pile fermentation pile for aerobic fermentation; the strip pile fermentation pile is 1.5 m high, 2.2 m wide and 12 m long. The ventilation and exhaust structure design of the factory building itself is used for biological drying until the moisture content of the pig manure is reduced to 42%, while retaining regular turning operation, with a turning frequency of 2 times a day. The open-air drying cycle is 18 days.

[0093] Example 4

[0094] This embodiment provides a segmented heat preservation shed and method for assisting the biological drying of organic solid waste, wherein the structure of the segmented heat preservation shed is the same as that of the segmented heat preservation shed in Example 1.

[0095] The segmented heat preservation shed provided in this embodiment is used in a farm in the Central Plains to dry pig manure. The drying site covers an area of ​​about 1000m 2The factory building itself has a ventilation and exhaust structure design. Multiple large-diameter exhaust pipes are installed above the factory building, and multiple oxygen supply ventilation pipes are installed side by side on the ground. Under the conditions of outdoor ambient temperature of -10 to 8°C in winter and humidity inside the factory building exceeding 80% for a long time, the segmented insulation shed is used in conjunction with the auxiliary organic solid waste biological drying method to biologically dry pig manure, including the following steps:

[0096] ① is the same as step ① in Example 1.

[0097] ② is the same as step ② in Example 1.

[0098] ③ is the same as step ③ in Example 1.

[0099] ④ During the aerobic fermentation process, the temperature of the strip pile fermentation pile continues to rise. When the temperature of the strip pile fermentation pile reaches 50°C and remains stable, the ventilation duct and the steam extraction duct are opened to extract steam to discharge part of the water vapor in the segmented insulation shed and reduce the temperature of the strip pile fermentation pile to 40°C. Then the steam extraction is stopped, and the strip pile fermentation pile continues to accumulate heat and the temperature continues to rise.

[0100] ⑤ After repeating step ④ 8 times, the sealing plate of the segmented insulation shed is opened, and it is detected that the temperature of the fermentation pile cannot rise, and the segmented insulation shed is folded up section by section to turn the pile, wherein the turning is performed mechanically by a turning machine, and during the turning process, the condensed water in the sump is discharged.

[0101] ⑥ After the turning is completed, multiple segmented insulation sheds are reconnected along the length direction starting from one end of the fermentation pile to form a segmented insulation shed as a whole, and sealing plates are set at both ends of the segmented insulation shed. Steps ④ and ⑤ are repeated until the moisture content of the organic solid waste is reduced to 42%.

[0102] The effect of using the segmented insulation shed in this embodiment for biological drying of organic solid waste: after testing, the moisture content of pig manure is reduced to 42%, the required drying time is shortened by 25% relative to the open-air drying method, and the energy consumption of the equipment is reduced by 30%; wherein, open-air drying refers to the outdoor ambient temperature of -10 to 8 ° C in winter, and the humidity inside the factory building is higher than 80% for a long time. Under the conditions of the organic solid waste pig manure with a moisture content of 77.8% and a carbon-nitrogen ratio of 26 is piled in a strip pile on the floor of the factory building above a plurality of oxygen supply ventilation ducts arranged side by side for oxygen supply, forming a strip pile fermentation pile for aerobic fermentation; the strip pile fermentation pile is 1.5m high, 2.2m wide and 12m long, and the ventilation and exhaust structure design of the factory building itself is used for biological drying until the moisture content of the pig manure is reduced to 42%, while retaining regular turning operation, with a turning frequency of 2 times a day, and the open-air drying cycle is 18 days.

[0103] Example 5

[0104] This embodiment provides a segmented insulation shed and method for assisting the biological drying of organic solid waste. The structure of the segmented insulation shed is the same as that of the segmented insulation shed in Example 1.

[0105] The segmented heat preservation shed provided in this embodiment is used in a farm in the Central Plains to dry pig manure. The drying site covers an area of ​​about 1000m 2 The factory building itself has a ventilation and exhaust structure design. Multiple large-diameter exhaust pipes are installed above the factory building, and multiple oxygen supply ventilation pipes are installed side by side on the ground. Under the conditions of outdoor ambient temperature of -10 to 8°C in winter and the humidity inside the factory building is always higher than 80%, the use of the segmented insulation shed for biological drying of organic solid waste includes the following steps:

[0106] ① is the same as step ① in Example 1.

[0107] ② is the same as step ② of Example 1.

[0108] ③ Open the ventilation duct and the steam extraction duct to extract steam so that the strip fermentation pile undergoes aerobic fermentation; during the aerobic fermentation process, part of the water vapor in the segmented insulation shed condenses on the inner wall of the segmented insulation shed to form condensed water, and the condensed water flows into the water collection tank along the wall.

[0109] ④ Use a continuous steam exhaust drying method to continuously perform steam extraction operations during aerobic fermentation, while retaining regular compost turning operations with a frequency of twice a day until the moisture content of the organic solid waste is reduced to 42%.

[0110] The effect of biological drying of organic solid waste using the segmented insulation shed in this embodiment is as follows: the moisture content of pig manure is reduced to 42%, the required drying time is shortened by 20% relative to the open-air drying method, and the energy consumption of the equipment is reduced by 23%; wherein, open-air drying refers to the outdoor ambient temperature of -10 to 8°C in winter and the humidity inside the factory building is higher than 80% for a long time. Under the conditions of long-term high humidity, organic solid waste pig manure with a moisture content of 77.8% and a carbon-nitrogen ratio of 26 is piled in a strip pile on the floor of the factory building above a plurality of oxygen supply ventilation ducts arranged side by side for oxygen supply, forming a strip pile fermentation pile for aerobic fermentation; the strip pile fermentation pile is 1.5m high, 2.2m wide and 12m long, and the ventilation and exhaust structure design of the factory building itself is used for biological drying until the moisture content of the pig manure is reduced to 42%. At the same time, regular turning operation is retained, with a turning frequency of 2 times a day. The open-air drying cycle is 18 days.

[0111] In the description of the present invention, it should be noted that the terms "upper", "lower", "bottom", "inner", "outer" and the like indicate directions or positional relationships based on the attached Figure 1The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0112] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the term "connection" should be understood in a broad sense. For example, it can mean a fixed connection, a detachable connection, or an integral connection; it can mean a direct connection, an indirect connection through an intermediate medium, or a communicating connection, etc. Those skilled in the art will understand the specific meaning of this term in the present invention depending on the specific circumstances.

[0113] Parts of the present invention that are not described in detail are well known to those skilled in the art.

[0114] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A method for assisting the biological drying of organic solid waste, characterized in that: The method adopts a segmented insulation shed for assisting the biological drying of organic solid waste, wherein the segmented insulation shed comprises a plurality of segmented insulation sheds, each segmented insulation shed being in an inverted V-shaped structure, a support pulley and a sealing curtain being provided at the lower end of each segmented insulation shed, and the sealing curtain being located on the inner side of the support pulley; a water collecting trough is provided at the lower end of the inner wall of each segmented insulation shed; the water collecting trough is detachably provided at the lower end of the inner wall of the segmented insulation shed; when assisting the biological drying of organic solid waste, the plurality of segmented insulation sheds are sequentially connected along the length direction. The sectional heat preservation shed is formed by overlapping and integrally forming the sectional heat preservation shed, and the sectional heat preservation shed further comprises detachable sealing plates arranged at both ends in the longitudinal direction, wherein the sealing plate at one end is provided with an air inlet, and the sealing plate at the other end is provided with a steam exhaust port; when assisting the biological drying of organic solid waste, a plurality of oxygen supply ventilation ducts for oxygen supply are arranged side by side in the interior of the sectional heat preservation shed, and a strip fermentation pile is placed above the oxygen supply ventilation ducts; the height of the strip fermentation pile is not less than 1.5 meters and the length is not more than 20 meters; The method comprises the following steps: (1) stacking organic solid waste with a moisture content of 55% to 80% in a strip pile above a plurality of oxygen supply ventilation ducts arranged side by side to form a strip pile fermentation pile; (2) Laying together a plurality of segmented insulation sheds along the length direction from one end of the fermentation pile to form the segmented insulation shed as a whole, and providing sealing plates at both ends of the segmented insulation shed so that the air inlet provided on the sealing plate at one end is connected to the ventilation duct, and the steam exhaust port provided on the sealing plate at the other end is connected to the steam extraction duct; (3) aerobic fermentation is performed on the strand fermentation pile under the condition that the ventilation duct and the steam extraction duct are in a closed state; during the aerobic fermentation process, the water vapor in the segmented insulation shed condenses on the inner wall of the segmented insulation shed to form condensed water, and the condensed water flows into the water collection tank along the wall surface; (4) During the aerobic fermentation process, the temperature of the fermentation pile continues to rise. When the temperature of the fermentation pile reaches above 55°C and remains stable, the ventilation duct and the steam extraction duct are opened to extract steam for 10 to 60 minutes to discharge the water vapor in the segmented insulation shed and reduce the temperature of the fermentation pile to no less than 45°C; then the steam extraction is stopped, and the fermentation pile continues to accumulate heat and the temperature continues to rise; (5) After repeating step (4) 3 to 10 times, open the sealing plate at one end of the segmented insulation shed, and choose whether to retract the segmented insulation shed section by section and turn the pile according to the moisture content and / or fermentation status of the fermentation pile; (6) If turning the pile is not required, directly repeat steps (4) and (5) until the moisture content of the organic solid waste is reduced to 30-45%; if turning the pile is required, after turning the pile is completed, the multiple segmented insulation sheds are re-connected together to form the segmented insulation shed as a whole, and sealing plates are provided at both ends of the segmented insulation shed, and repeat steps (4) and (5) until the moisture content of the organic solid waste is reduced to 30-45%; during the turning process, the condensed water in the sump is discharged.

2. The method according to claim 1, wherein: Each segmented heat-insulating shed comprises a heat-insulating shed frame and a heat-insulating layer arranged on the outside of the heat-insulating shed frame.

3. The method according to claim 2, wherein: A waterproof canvas layer is provided between the thermal insulation layer and the thermal insulation shed.

4. The method according to claim 3, wherein: The heat-insulating shed is made of corrosion-resistant metal material.

5. The method according to claim 3, wherein: The thermal insulation layer is made of rubber-plastic board or rock wool thermal insulation material.

6. The method according to claim 1, wherein: The inclination angle of the inverted V-shaped structure is 30° to 60°.

7. The method according to claim 1, wherein: In the multiple segmented insulation sheds that are overlapped together, the height of each segmented insulation shed decreases along the length direction.

8. The method according to claim 1, wherein: The air inlet is connected to the ventilation duct, and the steam exhaust port is connected to the steam extraction duct.

9. The method according to claim 1, wherein: The compost turning is manual or mechanical.

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