T/CI 007-2022 Electromagnetic induction thermal radiation walnut seed hull removal equipment

Scope

Scope: This standard specifies the terms and definitions, product models, technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage for walnut kernel skin removal equipment in agricultural machinery products. This standard applies to electromagnetic radiation and thermal radiation walnut kernel skin removal equipment; Main technical content: High-frequency electromagnetic induction heating High-frequency electromagnetic induction heating converts 50Hz AC power into high-frequency (10~30kHz) power devices. After rectifying the AC power into DC, the DC power is transformed into adjustable high-frequency current, generating high-density magnetic field lines in the induction coil and cutting the rectangular metal thin-walled cylinder in the induction coil. The metal thin-walled cylinder generates eddy currents, which are heated due to resistance. 3.8 High-temperature instant thermal radiation Using high-frequency electromagnetic induction to super-fast heat the high-temperature-resistant metal thin-walled cylinder to extremely high temperatures (600℃~800℃), generating high-intensity thermal radiation in the cylinder space. 3.9 Thermal radiation skin embrittlement and shedding Based on the heating spectral characteristics of walnut kernels/pectin/skin, adjusting the electromagnetic parameters to enable the skin/pectin to effectively absorb the thermal radiation and reduce the absorption by walnut kernels, thereby converting energy and generating heat. Through short-term thermal radiation (8s~12s) on walnut kernels, based on the temperature lag effect, heat is transferred from the outside to the inside to form a high temperature gradient. After the skin is heated to a high temperature, it dehydrates and embrittles in a very short time. Subsequently, the heat is transferred to the pectin layer, reaching its cracking temperature threshold, and the pectin rapidly cracks, losing its adhesive effect in a very short ti

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