A high-speed humification method and device for realizing targeted biothermal recycling
A humification and biothermal technology, applied in the field of humus utilization of agricultural wastes, can solve the problems of not taking into account the heat conduction at the heat-dissipating surface, limiting the rapid progress of the humification process, etc., to achieve uniform temperature, improve efficiency, reduce The effect of small temperature gradients
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Embodiment 1
[0036] After crushing the humified raw material, it is fed into the silo-type composting reactor 1 . In the initial stage, low-speed air supply is used, the air supply flow rate is set to 0.1L / min, the bottom air outlet 3 is opened, and the heating rate of the stack is controlled according to the temperature control equipment. The temperature of the inner surface of the compost reactor 1 was 50°C. The high temperature stage is kept at 55°C, the time is controlled for 3 days, and the gas supply is the same as that in the temperature rise stage. In the first two stages, the temperature at the air branch pipe 7 is used to monitor, and the temperature of the inner surface of the silo type composting reactor 1 is kept near the set value. If the temperature is too high, the bottom air outlet 3 and the air branch pipe 7 are closed. The valve adopts the common air supply method. In the cooling stage, high-speed air supply is adopted, the air supply flow rate is set to 0.45L / min, and...
Embodiment 2
[0039] A high-speed humification method for realizing targeted recycling of biological heat, the method specifically includes the following steps:
[0040] (1) After crushing the humified raw material to a particle size of 40-80 mesh, place it in the silo-type composting reactor 1, and use the fan 4 to pass air at 25°C from the bottom of the silo-type composting reactor 1, carry out the humification process;
[0041] (2) During the warming-up stage and heat-preservation stage of humification, low-flow air supply is adopted, and the air supply flow rate is 0.07L / min. At the same time, the air in the silo-type composting reactor 1 is drawn out from the top of the silo-type composting reactor 1. Finally, it is transported to the compost at the inner side of the silo-type composting reactor 1, and then discharged from the bottom air outlet 3 of the silo-type composting reactor 1, wherein the time of the heating up phase is 5 days, after the heating up phase ends, The temperature ...
Embodiment 3
[0048] A high-speed humification method for realizing targeted recycling of biological heat, the method specifically includes the following steps:
[0049] (1) After crushing the humified raw material to a particle size of 80-100 mesh, place it in the silo-type composting reactor 1, and use the fan 4 to pass air at 30°C from the bottom of the silo-type composting reactor 1, carry out the humification process;
[0050] (2) In the heating up stage and heat preservation stage of humification, low flow rate air supply is adopted, the air supply flow rate is 0.2L / min, and the air in the silo type composting reactor 1 is drawn out from the top of the silo type composting reactor 1 at the same time Finally, it is transported to the compost at the inner side of the silo-type composting reactor 1, and then discharged from the bottom air outlet 3 of the silo-type composting reactor 1, wherein the time of the heating up phase is 3 days, after the heating up phase ends, The temperature a...
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