本项目自主研发了一种燃气红外催化纤维层，增设了玻纤防护网，有效隔绝金属防护网在热变形时对催化纤维的伤害，克服了目前欧美红外发射器存在的温度分布不均匀的不足，创建一种更为科学的催化式红外发射器设计方法，研制出新型催化红外发射器1台。研制出变温滚筒式催化红外干燥设备1台，在干燥单元a、b、c的红外辐射距离均为30 cm;红外发生器1、3、5和2、4、6的红外辐射温度分别为300℃和400℃;干燥单元a、b、c的滚筒转速分别为25、35、35 Hz下红外预干燥22.5 min,然后迅速转入热风干燥在温度43℃、风速3 m/s的条件下干燥14 h,可干燥核桃至安全水分(<8%)。与单一热风干燥(20 h)相比，时间减少了28.1%,由此得出，变温滚筒式催化红外—热风联合干燥方式更有利于木质硬壳坚果类产品的干燥，更节能。在催化式红外去皮设备上红外温度450℃、辐射距离25 cm下辐射5 min,西红柿去皮率可达100%,且脱皮后的西红柿番茄红素、硬度和颜色指标保持良好。与传统热水去皮相比，番茄红素增加率提高了1.82%,硬度下降率减少了13.97%,色度变化率减少了24.89%。与碱液去皮方法相比，番茄红素增加率提高了78.22%,硬度下降率减少了29.05%,色度变化率减少了40.54%。由此得出在相同100%去皮率条件下，红外干法去皮方法减少了大量含有机固体的废水以及碱液产生，保护环境。This project independently developed a gas infrared catalytic fiber layer.The glass fiber mat was added,which effectively inhibited the damage of the thermal deformation of isolation metal fence to catalytic fiber layer and overcame the current uneven temperature distribution deficiencies of European and American infrared emitter.This research created a more scientific design method of catalytic infrared emitter and thus developed a new type catalytic infrared emitter.Based on the new developed catalytic infrared emitter,a set of cylindrical catalytic infrared drying equipment with variable temperature mode was developed.After the predried for 22.5 min under the radiation distances of 30 cm of drying units a,b and c,infrared temperatures of 300 and 400℃ of emitters 1,3,5 and 2,4,6,and rotation speeds of 25,35 and 35 Hz of drying units a,b and c,the walnut was quickly transferred into a hot air drying equipment for 14 h at a temperature of 43℃ and speed of 3 m/s to dry walnuts to a safe moisture(<8%).Compared with the traditional single hot air drying(20 h),the drying time was reduced by 28.1%.It was concluded that the combined drying method of cylindrical catalytic infrared with variable temperature mode and hot air was more conducive to the drying of wood nut products with a higher drying rate and more energy saving.Under the infrared temperature of 450℃and radiation distance of 25 cm for 5 min in the catalytic infrared peeling equipment,the peeling rate of tomatoes can reach 100%,and the tomato lycopene,hardness and color indexes remained good after peeling.Compared with traditional hot water peeling method,lycopene content was increased by 1.82%,hardness reduction rate was decreased by 13.97%,and color change rate was decreased by 24.89%.Compared with lye peeling method,lycopene content was increased by 78.22%,hardness reduction rate was decreased by 29.05%,and color change rate was decreased by 40.54%.It was concluded that under the same 100%peeling rate,infrared peeling method can reduce the production of waste water containing organic solids and lye,and protect the environment.

本项目自主研发了一种燃气红外催化纤维层，在金属防护网与催化层之间增设玻纤防护网，有效隔绝金属防护网在热变形时对催化纤维的伤害，克服了目前欧美红外发射器存在的温度分布不均匀的不足，创建一种更为科学的催化式红外发射器设计方法，研制出新型催化式红外发射器1台。研制出滚筒式催化式红外干燥设备1台，在红外温度450℃、辐射距离30 cm、转速25 r/min下预干燥9.5 min然后迅速转入热风干燥设备在温度43℃、风速3 m/s的条件下干燥14 h,可干燥核桃至安全水分(<8%)。与传统单一热风干燥(20 h)相比，烘干时间减少了29.2%。由此得出，滚筒式催化式红外—热风联合干燥方式更有利于木质硬壳坚果类产品的干燥，干燥速率更高，更节能。在催化式红外去皮设备上红外温度450℃、辐射距离25 cm下辐射5 min,西红柿去皮率可达100%,且脱皮后的西红柿番茄红素、硬度和颜色指标保持良好。与传统热水去皮相比，番茄红素增加率提高了1.82%,硬度下降率减少了13.97%,色度变化率减少了24.89%。与碱液去皮方法相比，番茄红素增加率提高了78.22%,硬度下降率减少了29.05%,色度变化率减少了40.54%。由此得出在相同100%去皮率条件下，红外干法去皮方法更有利保护西红柿品质，且减少大量含有机固体的废水以及碱液产生，保护环境。This project independently developed a gas infrared catalytic fiber layer.The glass fiber mat was added between the metal fence and the catalytic layer,which effectively inhibited the damage of the thermal deformation of isolation metal fence to catalytic fiber layer and overcame the current uneven temperature distribution deficiencies of European and American infrared emitter.This research created a more scientific design method of catalytic infrared emitter and thus developed a new type catalytic infrared emitter.Based on the new developed catalytic infrared emitter,a set of cylindrical catalytic infrared drying equipment was developed.After the pre-dried for 9.5 min at the infrared temperature of 450℃,radiation distance of 30 cm and rotation speed of 25 r/min,the walnut was quickly transferred into the hot air drying equipment for 14 h at a temperature of 43℃ and a wind speed of 3 m/s to dry walnuts to a safe moisture(<8%).Compared with the traditional single hot air drying(20 h),the drying time was reduced by 29.2%.It was concluded that the combined drying method of cylindrical catalytic infrared and hot air was more conducive to the drying of wood nut products with a higher drying rate and more energy saving.Under the infrared temperature of 450℃ and radiation distance of 25 cm for 5 min in the catalytic infrared peeling equipment,the peeling rate of tomatoes can reach 100%,and the tomato lycopene,hardness and color indexes remained good after peeling.Compared with traditional hot water peeling method,lycopene content was increased by 1.82%,hardness reduction rate was decreased by 13.97%,and color change rate was decreased by 24.89%.Compared with lye peeling method,lycopene content was increased by 78.22%,hardness reduction rate was decreased by 29.05%,and color change rate was decreased by 40.54%.It was concluded that under the same 100%peeling rate,infrared peeling method was more advantageous to protect the quality of tomato,and reduce the production of waste water containing organic solids and lye,and protect the environment.