Straw bio-coal

First of all, straw can indeed produce coal. One is to make honeycomb briquette, but it is easy to break. Non-flammable. One is crushed and dried by a machine and compressed into blocks by a compressor, which is called straw compressed coal. Its purpose is to make feed and burn. The disadvantage is that the cost of the machine is too high. Besides, there are still many garbage machines on sale. They are not durable. These parts are perishable. The market for using them as combustible materials is not very good either. You should investigate the problem of sales first. If you are going to put into production, when you buy a machine.