型煤是解决民用散烧煤用户大气污染的有效途径,但目前市面上的型煤固硫率仍较低,仅为40％～60％,且存在高温下SO2的二次释放和受潮易破碎的问题,据此研发了一种新型固硫剂和新型黏结剂,具有较高的高温固硫率和较好的经济性.采用与之配套的新型生产工艺设备,制备出的型煤在燃烧过程中能“定温、定时、定向开花”;经实验测得该类型煤在Ca/S为2、燃烧温度为1 100℃条件下,固硫率近100％,二氧化硫趋于零排放,燃尽率达到95％以上,达到节煤目的.同时,新型黏结剂的使用,提高了型煤的防水性;改善了型煤贮存性能.%Briquette is an effective way to solve the air pollution of civil scattered coal users.However,the sulfur fixation rate of coal was still low at present,only about 40％ ～ 60％,and there existed the problem of secondary release of SO2 and moisture fragile in high temperature.In this paper,a new type of sulfur-fixing agent and binder was studied,which had better sulfur fixation rate in high temperature and good economy.A new type of production equipment was adopted,and the briquette could be heated,timed and directionally cracked during the combustion process.The experimental results showed that at the condition of Ca/S of 2 and combustion temperature of 1 100 ℃,the sulfur fixation effect reached nearly 100％,sulfur dioxide tended to zero emission and the burnout rate reached more than 95％,and achieved the purpose of coal saving.The use of new binder improved the waterproof property of the briquette,and improved the storability of the briquette.
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