Cooperative treatment device and method for straws and sludge
A technology for co-processing and sludge, applied in the field of waste resource utilization, can solve problems such as lack of technical devices, and achieve the effects of improving soil performance, improving performance indicators, and reducing treatment costs
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Embodiment 1
[0090] A device for co-processing straw and sludge, including sludge storage bin 1, 1# conveying device 2, mixing conditioning device 3, filter press device 4, 2# conveying device 5, 1# drying and dehydrating device 6, 3 #conveying device 7, 1# pyrolysis device 8, 1# cooling device 9, 4# conveying device 10, finished product storage bin 11, sewage treatment device 12, 1# condensing device 13, 1# fan 14, crushing device 15, 5 #conveying device 16, 2# drying and dehydrating device 17, 6# conveying device 18, 2# pyrolysis device 19, 2# cooling device 20, 7# conveying device 21, 1# combustion chamber 22, 2# combustion chamber 23, 3# combustion chamber 24, 2# condensing device 25, 2# fan 26, exhaust gas purification device 27 and chimney 28.
[0091] When working, the sludge in the sludge storage bin 1 is conveyed by the 1# conveying device 2 into the mixing and conditioning device 3, mixed with the straw pyrolysis carbon conveyed by the 7# conveying device 21, and then enters the ...
Embodiment 2
[0097] (1) Crushing and drying the rice straw in order to control its particle size below 3cm and water content below 1wt%, then anaerobically pyrolyze the obtained dry crushed straw at 400°C for 5 minutes, and obtain straw after cooling Pyrolytic charcoal.
[0098] (2) Mix and temper the straw pyrolytic charcoal and wet sludge from a domestic sewage treatment plant with a water content of 90wt% at a ratio of 20wt%:80wt%, and then mechanically filter the resulting mixed and tempered product Carry out solid-liquid separation to obtain sludge solid phase and liquid phase; the sludge solid phase is dried and dehydrated at 80°C to a water content of 1 wt%, and then anaerobically pyrolyzed at 400°C for 60 minutes, and the modified sludge is obtained after cooling. Sludge pyrolytic carbon, which can be used as a soil improver; the liquid phase is treated by a sewage treatment system to make it discharge up to the standard. The results show that compared with sludge dehydration and ...
Embodiment 3
[0106] (1) Crushing and drying the corn stalks in order to control the particle size below 3cm and the water content below 1wt%, then anaerobically pyrolyze the obtained dry crushed stalks at 250°C for 20 minutes, and obtain the stalks after cooling Pyrolytic charcoal.
[0107] (2) The straw pyrolytic carbon and the wet sludge of domestic sewage treatment plant with a water content of 90wt% are mixed and tempered according to the ratio of 40wt%:60wt%, and then the obtained mixed and tempered product is mechanically pressed and conditioned Carry out solid-liquid separation to obtain the solid phase and liquid phase of the sludge; the solid phase of the sludge is dried and dehydrated at 120°C until the water content is 1wt%, and then anaerobically pyrolyzed at 700°C for 15 minutes, and the modified sludge is obtained after cooling. Sludge pyrolytic carbon, which can be used as a soil improver; the liquid phase is treated by a sewage treatment system to make it discharge up to th...
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