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随着仪器分析的发展,迫切要求样品分析前的消化处理提高速度。国外,近年来出现凯氏系统的消化设备,用特制的大试管在金属多孔炉中加热消煮样品。虽可增加消煮数量,但价格昂贵,预热时间过长,重量较重,使用不便。国内有的单位仿效国外设备,将铝锭钻孔,用试管盛样,在电炉上加热消化样品,但仍有预热过长,电力浪费,控制不便等缺点。 为寻求高工效,低消耗,适于国内推广应用的消煮专用设备,我们从1979年10月至1980年8月,应用远红外辐射技术的原理,吸收一些单位的经验,设计试制了远红外消煮炉。经八个应用单位联合试验和技术鉴定,认为它有效率高、节电、耐腐蚀、重量轻、体积小和价格低廉等特点。试验证明:它比普通六孔电炉节电90％以上,并能大幅度提高工作效率。特别适用于当前土壤普查等大量样品的消化处理。
With the development of instrumental analysis, there is an urgent need to increase the rate of digestion before sample analysis. Abroad, in recent years, Kjeldahl system digestion equipment appears, with a special large tube in the metal porous furnace heat digestion samples. Although it can increase the number of digestion and boil, but expensive, preheating time is too long, heavier, inconvenient to use. Some domestic units to follow the example of foreign equipment, aluminum ingot drilling, with test tube Sheng samples, heated digestion samples on the electric stove, but there are still preheating, power waste, inconvenient control shortcomings. In order to seek high efficiency, low consumption, suitable for domestic application of special equipment for home cooking, we from 1979 October to August 1980, the application of the principle of far-infrared radiation technology, to absorb some of the experience of the unit, the trial design of a far-infrared Boiler After eight units of joint testing and technical appraisal, that it is highly efficient, energy saving, corrosion resistance, light weight, small size and low price and so on. Test proved that: it is more than 90% energy saving than ordinary six-hole electric furnace, and can greatly improve work efficiency. Particularly suitable for the current soil census and other large sample digestion.