Agriculture and forestry organic solid waste static compost heat recycling system

An organic solid and heat recovery technology, which is applied in the direction of organic fertilizers, organic fertilizer preparation, inorganic fertilizers, etc., can solve the problems of low efficiency of heat recovery and utilization, and the inability to realize static composting, so as to reduce heating costs, promote the development of ecological civilization, The effect of low construction and operation costs

Pending Publication Date: 2020-07-10
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention aims to solve the problem that the existing agricultural and forestry organic solid waste composting heat recovery efficiency is low and static composting cannot be realized, and further provides a static composting heat recovery system for agricultural and forestry organic solid waste

Method used

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  • Agriculture and forestry organic solid waste static compost heat recycling system

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specific Embodiment approach 1

[0025] Specific implementation mode one: combine figure 1Describe this embodiment, a static composting heat recovery system for agricultural and forestry organic solid waste, which includes a fermentation bin 1 and a partitioned heat exchanger 2, the interior of the fermentation bin 1 is a fermentation chamber, and a support is arranged at the bottom of the fermentation chamber, and A bottom ventilation space is formed between the support member and the bottom surface of the fermentation chamber, the material pile 3 is stacked on the support member, a leachate tank 4 is arranged below the fermentation bin 1, and the bottom ventilation space communicates with the leachate tank 4 through a pipeline , a spraying device 5 is arranged above the material pile 3 in the fermentation chamber, and the fermentation chamber 1 and the partition heat exchanger 2 are connected with the return air pipe 7 through the air supply pipe 6 to form a closed gas flow loop, wherein the return air pipe ...

specific Embodiment approach 2

[0051] Specific implementation mode two: combination figure 1 To illustrate this embodiment, when a static composting heat recovery system for agricultural and forestry organic solid waste of the present application is used to heat the planting greenhouse 100 , the gas generated in the fermentation bin can be used to supply gas fertilizer for the planting greenhouse 100 . An exhaust pipe is communicated with the return air pipe between the circulating fan and the fermentation bin, and one end of the exhaust pipe is communicated with the external space and an exhaust valve is arranged on it. The heating system of the planting greenhouse is connected in closed loop with the partition wall heat exchanger to realize heat supply. In order to ensure the reliability of the heating system, new greenhouses should be equipped with backup heat sources (such as small boilers fueled by coal, straw or firewood), and the original heat sources of existing greenhouses should be reserved for ba...

specific Embodiment approach 3

[0057] Specific implementation mode three: combination figure 1 To illustrate this embodiment, when a static composting heat recovery system for agricultural and forestry organic solid waste of the present application is used to heat farm houses, the static composting heat recovery system is designed and constructed according to the building area of ​​the houses. Install the partition wall heat exchanger in the equipment room or boiler room of the farm house, or build a separate equipment room with insulation outdoors, or install it in the underground space. At present, the hot water radiator heating system is common in farm houses, and there is a small amount of air-water hot air heating system. The pipe side of the partition heat exchanger is connected with the heating water system of the farm house, and the water is circulated between the partition heat exchanger and the farm house heating system by a pump to provide indoor heating for the farm house. In order to ensure th...

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Abstract

The invention discloses an agriculture and forestry organic solid waste static compost heat recycling system, belongs to the technical field of agriculture and forestry organic solid waste resource utilization, and solves the problems that the existing agriculture and forestry organic solid waste compost heat recycling efficiency is low and static composting cannot be achieved. A leachate tank isarranged below a fermentation bin; the bottom ventilation space is communicated with the leachate tank through a pipeline; a spraying device is arranged above the material pile in the fermentation chamber; the fermentation bin is connected with a dividing wall type heat exchanger through an air supply pipe and an air return pipe; a circulating fan is arranged on the air return pipe, the air outletend of the air return pipe is located in the bottom ventilation space, a fresh air pipe is further arranged on the air return pipe between the dividing wall type heat exchanger and the circulating fan in a communicating mode, and the dividing wall type heat exchanger is connected with a heat using system through a pipeline to form a closed liquid or gas flowing loop. With application of the system, latent heat and sensible heat generated in the fermentation process can be recycled to the maximum extent while the organic fertilizer is obtained.

Description

technical field [0001] The invention relates to a static composting heat recovery and utilization system for agricultural and forestry organic solid waste, and belongs to the technical field of resource utilization of agricultural and forestry organic solid waste. Background technique [0002] Common agricultural and forestry solid wastes include straw, stumps, weeds, fallen leaves, rhizomes, fruit shells, vines, branches, waste bamboo, dregs, cakes, wood chips, and poultry and livestock manure, etc. Many agricultural and forestry solid wastes contain a large amount of organic substances, such as cellulose, lignin, inorganic salts and other valuable material resources, and also have high energy density. Therefore, it can be said that agricultural and forestry organic solid waste is a renewable biomass resource with high utilization value. Use it to benefit, discard it to harm. Although the utilization rate of agricultural and forestry organic solid waste in my country is g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F17/979C05F17/986C05D7/00F28D21/00A01G9/24A01G9/18A01K31/00A01K1/00
CPCA01G9/18A01G9/246A01K1/0047A01K31/00C05D7/00F28D21/0014F28D2021/0035Y02W30/40Y02P20/10Y02A40/25
Inventor 展长虹李光皓
Owner HARBIN INST OF TECH
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