Substrate fermentation device with interlayer, gas chimneys and movable bottom doors

Abstract

The invention discloses a substrate fermentation device with an interlayer, gas chimneys and movable bottom doors. The device is of a steel grille frame structure and comprises a frame opening (1), aframe body (2) and a frame bottom (3). The device is characterized by being further provided with the interlayer (4), the gas chimneys (5) and the movable bottom doors (6); the interlayer (4) is double-sided galvanized steel wire mesh plates arranged in the middle of the device at spacing of 50-80 mm, the device is divided into 2-4 bins, and a hollow ventilation layer is formed; the gas chimneys (5) are arranged in the divided bins, and 4-6 hollow permeable cylinder holes penetrating the frame opening (1) and the frame bottom (3) are formed; the two movable bottom doors (6) are arranged at thebottom of the device and facilitate discharging. According to the device, the mesh plate hollow interlayer and the gas chimneys are adopted for natural ventilation, one-time turnover-free static fermentation and semi-automatic discharging of / at the movable bottom plates are achieved, and use is convenient; the device is made of a steel material, has reasonable structure and long service life, canbe stacked in multiple layers, saves fermentation sites, and is especially suitable for fermentation treatment of industrial solid waste raw materials by substrate production enterprises.

Description

technical field [0001] The invention relates to a solid organic waste fermentation device, in particular to a substrate fermentation device with an interlayer, an air stack and a movable bottom door, belonging to the technical field of biological fermentation engineering. Background technique [0002] Substrate fermentation (composting) is a traditional and quite modern biotechnology, and it is also a comprehensive and highly applicable engineering science. The purpose of fermentation is to turn all kinds of industrial and agricultural organic waste into a stable, harmless organic waste suitable for soilless cultivation and environmental restoration through a series of scientific process steps and convenient and practical fermentation equipment. Matrix products. Modern fermentation (composting) technology is developed on the basis of traditional anaerobic composting in rural areas, and is constantly innovating and improving in practice. At present, the aerobic fermentation...

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Problems solved by technology

[0003] 1. Strip-stack fermentation (composting)—it provides oxygen to the pile through mechanical or manual regular turning or forced ventilation. The fermentation scale is small, it occupies a large area, the fermentation time is long, the production capacity is limited, the heat preservation performance is poor, and it is difficult to kill the pathogens in the stockpile

In the early stage of fermentation, it is easy to emit a strange (smelly) smell; in the later stage of aging (drying), the dust is flying when the pile is turned, and the open fermentation site is full of sewage in rainy days, which is easy to breed mosquitoes and flies

[0004] 2. Static fermentation (composting)——Compared with strip-stack fermentation, the difference is that during the fermentation process, materials are not turned over, but mechanically forced ventilation is used to aerate or induce air extraction. Its characteristics are similar to those of strip-stack fermentation Approximately, the disadvantage is that the ventilation rate and the temperature of the pile are difficult to control. If the ventilation rate is too small, anaerobic formation in the pile will easily cause the temperature to be too low or too high, which will affect the maturity of the compost, and even need to be matured for a second time. Fermentation, especially during forced ventilation, emits a strange (stinky) smell, and deodorization facilities are required, which will inevitably increase investment and affect operating costs

[0005] 3. Trough fermentation (composting) - the fermentation process takes place in a long and narrow channel called a "trough". The track is set above the wall of the trough to facilitate the movement of the turning machine, and the bottom of the trough is laid with aeration The pipeline can ventilate and aerate the pile. It is a fermentation system that combines controllable ventilation and regular turning. It is characterized by a high degree of mechanization, a small footprint, a short fermentation cycle, and uniform fermentation quality. A lot of equipment and facilities, large investment in construction, high operating costs

[0006] 4. Reactor fermentation (composting) - the type of fermentation system is mostly large-scale equipment and facilities, which are widely used abroad and rarely imported in China

[0007] To sum up, regardless of the type of fermentation (composting), more mechanical power and energy consumption are required, as well as environmental protection facilities for the treatment of three wastes. For this reason, more fermentation equipment, depreciation expenses and operating costs will inevitably be added , due to the excessive investment in the construction period of substrate enterprises, the high cost of production and operation, and the lagging process technology, the market prices of substrate and organic fertilizer products remain high

Many farmers cannot afford organic fertilizers and substrate products, and can only choose to use chemical fertilizers, which restricts the development of substrate enterprises to a certain extent, affects the application and promotion of organic fertilizers and substrate products, and in turn restricts organic fertilizers. The process of ecological agriculture

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