Industry Info

Introduction and working principle of double screws turning machine

 The double-screw turning machine is used for fermentation and dumping of organic waste such as livestock manure, sludge garbage, sugar mill sludge, dregs cake and straw sawdust, and is widely used in organic fertilizer plants and compound fertilizer plants. Fermentation and dehydration operations in sludge waste plants, horticultural fields, and agaricus bisporus plantations. Suitable for aerobic fermentation, it can be used together with solar fermentation room, fermentation tank and mobile machine. It can be used with the mobile machine to realize the function of one machine and multiple slots. The fermentation tanks that are matched with it can be discharged continuously or in batches. It’s high efficiency, stable operation, sturdy and durable, and evenly turned.

The compost turner is the core equipment for aerobic dynamic composting and plays a role in compost production:
1. Stirring function in raw material quenching and tempering. In the fertilizer production, in order to adjust the carbon-nitrogen ratio, PH, water content, etc. of the raw materials, some auxiliary materials must be added. The main raw materials and various auxiliary materials stacked roughly together in proportion can be mixed by the turning machine for uniform mixing to achieve the purpose of quenching and tempering.
2. Mediate the temperature of the raw material pile. In the operation of the pile-up machine, the raw material pellets are fully contacted and mixed with the air, and a large amount of fresh air can be cultivated in the pile, which helps the aerobic microorganisms to actively generate the fermentation heat, and the stack temperature rises; when the temperature is high, the fresh air can be supplemented. Lower the temperature of the heap. Forming a state of intermediate temperature-high temperature-intermediate temperature-high temperature, various beneficial microbial bacteria rapidly grow and multiply in their adapted temperature range.
3. Improve the permeability of the raw material pile.The turn-over system can process the material into small agglomerates, making the viscous, dense material pile become fluffy and elastic, forming a suitable porosity.
4. Adjust the moisture of the raw material pile. The suitable water content for raw material fermentation is above 55%, and the moisture standard for finished organic fertilizer is below 20%. In the fermentation, the biochemical reaction will generate new water, and the consumption of the raw material by the microorganism will also cause the water to lose the carrier and be released. Therefore, as the process of fertilizer production reduces water in a timely manner, in addition to evaporation caused by heat conduction, turning the machine to turn the raw materials will form a mandatory water vapor emission.
5. Realize the special requirements of the composting process. For example, if the raw material is broken, a certain shape of the raw material pile is given or a quantitative shift of the raw material is achieved.

Double screws turner working principle:
The machine is composed of main components such as front and rear traveling device, left and right running device, rotary blade lifting device, rotary vane rotary power device and PLC control cabinet. This model overcomes the problem that the common rotary tiller type turn-over machine has shallow turning depth, small stacking span and large floor space. The effective turning of the equipment can reach 1.7 m and the effective turning span can reach 6-12m, which greatly improves the utilization rate of the work site, especially suitable for the fermentation of low organic matter such as sludge and municipal waste (due to the low organic matter content, it is necessary to have a fermentation depth to increase the fermentation temperature and thus reduce the fermentation time). The device uses two intermeshing and oppositely turning spiral blades to turn the material at the bottom of the fermentation tank to the upper part, and simultaneously moves laterally and longitudinally, so that the material and the oxygen in the air can be fully contacted, thereby playing aerobic The role of fermentation and turning down the temperature. This equipment is equipped with PLC program control cabinet, which can realize manual or automatic control function, and can also be equipped with remote control device to achieve accurate operation.