Circulating microwave cocoon cooking machine

Abstract

The invention discloses a circulating type microwave cocoon cooking machine which is a key device for a reeling mill, the outer layer, the middle layer and the inner layer of cocoons are uniformly cooked at the same time in the cocoon cooking process most efficiently, and the defects of steam cocoon cooking, hot soup cocoon cooking, outer cooking and inner cooking can be overcome. The production efficiency is greatly improved, the quality of white steam filature silk is obviously improved, raw material consumption is obviously reduced, pupa acid leaching is effectively inhibited, and energy conservation and environmental protection are achieved.

Description

Technical Field

[0001] The invention is a key equipment in the silk field, silk reeling factory and cocoon cooking process Background Art

[0002] In the current silk-making process, the cocoon layers of silkworm cocoons are cooked with steam or hot water to achieve swelling, softening and proper dissolution at the sticking point so that the cocoon silk can be drawn out from the outside to the inside in an orderly and continuous manner to make white silk of various specifications. Due to the uneven conductive heating of the middle and inner layers by steam and hot water and insufficient heat, the silk ends are broken in the middle, and the silk has to be re-drawn, which is labor-intensive and time-consuming, resulting in many breakages, so that the quality and production efficiency of the white silk are restricted. Summary of the invention

[0003] The present invention aims at a silk cocoon of about 1000 meters in length, with numerous sticking points on the cocoon layer. The cocoon layer is moistened by vacuum penetration, and then the cocoon layer is penetratingly heated by microwaves, so that the outer, middle and inner parts of the silk cocoon are cooked to the same degree of doneness, so that a cocoon can find a head and the cocoon silk can be continuously extracted from the beginning to the end, thereby producing high-quality white silk. This machine consists of six sections: vacuum penetration section, upper trough cocoon feeding section, hot soup preheating section, microwave cooking section, hot soup adjustment section and protective outlet section. The vacuum penetration section uses vacuum to enter warm water to moisten the cocoon layer, and then the wet cocoons are added to the silkworm cage in the upper trough cocoon feeding section. The silkworm cage brings the cocoons into the hot soup preheating section to preheat the cocoons, so that the free water molecules at the adhesive points on the cocoon layer are converted into bound water molecules. After the wet cocoons enter the microwave cooking section, the microwaves penetrate and heat the outer, middle and inner cocoon layers at the same time, so that each adhesive point is equally swollen and softened to achieve a suitable cooking; the cooked cocoons enter the hot soup adjustment section to absorb a proper amount of water to achieve a suitable sinking and buoyancy during reeling; enter the protective outlet section to cool down the outer surface that contacts the hot soup to prevent excessive loss of sericin. The cocoon cage cover at the outlet automatically opens, and the cocoons are added to the cocoon barrel and transported to the reeling workshop. This machine is suitable for the production of 220 vertical reeling machines or automatic reeling machines of equal size. The outer, middle and inner layers of the cocoon are cooked evenly at the same time, overcoming the drawback of cooking the outer layer of the cocoon with steam or hot water while the inner layer is raw, and effectively inhibiting the leaching of pupal acid, thereby achieving significant effects such as low sericin dissolution rate, high silk yield rate, excellent cutting, cleaning, cleanliness, cohesion, strength, elongation, and hand-touch gloss, as well as fewer knots and good relaxation, and less falling threads in the inner and middle layers of the cooked cocoon. In large-scale production, it is reflected that the output per unit is increased, the grade of white silk is improved, the reeling fold is significantly reduced, the raw materials are greatly saved, the energy consumption is reduced, and the economic benefits are significant. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 Schematic diagram of a circulating microwave cocoon cooking machine A- vacuum penetration section, B- upper trough cocoon feeding section, C- hot soup preheating section, D- microwave cooking section, E- hot soup adjustment section, F- protection outlet section. 1. Vacuum penetration cylinder, 2. Cocoon storage tank, 3. Cocoon adding bucket, 4. Raw and hard cocoons, 5. Cocoon cage cover, 6. Cocoon cage, 7. Large sprocket, 8. Exhaust pipe, 9, 19. Leakage suppression area, 10, 18. Overflow pipe, 11. Steam pipe, 12, 17. Excitation port, 13, 16. Resonant cavity microwave heater, 14. Waveguide tube, 15. Microwave generator, 20. Chain, 21. Cocoon outlet, 22. Cooked cocoons.

Claims

1. Circulation type microwave cocoon cooking machine, characterized in that: The key sections of the circulating microwave cocoon cooking machine are composed of the upper trough cocoon feeding section, hot soup preheating section, microwave cooking section, hot soup adjustment section, and protection outlet section. The whole tank body is made by welding stainless steel and copper plate into a whole plate; A single-source, double-chamber, multi-port coupling and resonant cavity microwave heating component was developed, and the cocoon cage inlet and outlet were fully water-sealed; Achieve uniform heating, zero reflection of microwave energy, and zero leakage.

2. The circulating microwave cocoon cooking machine according to claim 1, characterized in that: The cocoon cage adopts a structure combining reinforced polypropylene and copper parts; The microwaves can reach the silk cocoons with high penetration, and the material has sufficient strength and rigidity to overcome the cocoon leakage caused by the deformation of the cocoon cage during cocoon boiling.

3. The circulating microwave cocoon cooking machine according to claim 2, characterized in that: Optimize and control the process parameters of each section.

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