Patent EA-000182-B1 (EA)
Title: Procedure and device for treating tobacco veins in making shredded tobacco
Inventor: METZNER WOLFHANG
IPC: A24B5/16
Filed: 1997-09-25
Abstract: 1. Procedure for processing tobacco veins in making shredded tobacco used for smoking articles characterized in that a) tobacco veins are soaked, bringing moisture content to maximum of 45 wt%, b) soaked veins are subjected to super drying, bringing moisture content to less 12 wt%, c) after super drying the veins are repeatedly moistened, bringing moisture content to values, required for next step of vein processing. 2. Procedure according to Claim 1 characterized in that the veins are soaked, bringing moisture content to maximum of 40 wt%, preferably to about 35 wt%. 3. Procedure according to Claim 1 or 2 characterized in that the soaking fluid prior to applying on tobacco veins is heated to 30-50 degree C, preferably to about 40-45 degree C. 4. Procedure according to Claims 1-3 characterized in that dressed veins are subjected to super drying, bringing moisture content to less 10 wt%, preferably to about 8 wt%. 5. Procedure according to Claims 1-4 characterized in that soaked veins are subjected to super drying in a steam drying tower, preferably in drum type drying tower or tobacco drying tower Berlay type. 6. Procedure according to Claims 1-5 characterized in that subjected to super drying veins is repeatedly moistened in a drum for moistening or in the last chamber of the tobacco-drying tower Berlay type. 7. Procedure according to Claims 1-6 characterized in that not processed veins are subjected to soaking 8. Procedure according to Claims 1-6 characterized in that not processed veins are subjected to moistening by steam, bringing moisture content to about 16-20 wt %, preferably to about 17-18 wt%. 9. Procedure according to Claim 8 characterized in that preliminary moistened veins are stored in a confined chamber during at least 1.5 hour, preferably during 2 hours. 10. Procedure according to one of Claims 1-9 characterized in that repeatedly moistened veins are subjected to processing during CRS steps. 11. Procedure according to one of Claims 1-9 characterized in that repeatedly moistened veins are preliminary cut, mix with moistened lamina material and thus obtained mixture is dried and cut. 12. Procedure according to Claim 8 characterized in that the veins are preliminary cut to about 0.1-0.3 mm. long, preferably to about 0.2 mm. long. 13. Procedure according to Claims 11 or 12 characterized in that the preliminary cut veins are expanded. 14. Procedure according to Claims 11-13 characterized in that the preliminary cut vein material is added to the lamina material, said vein material comprising about 30wt% preferably from 5 to 25wt% of the total mass. 15. Procedure according to Claims 11-14 characterized in that the lamina material and the vein material for making cigarettes are cut to about 0.5-2 mm long, preferably 0.85 mm long, while the lamina and vein material for making tobacco of fine cut are cut to about 0.35-0.5 mm. long, preferably 0.45 mm. long. 16. Procedure according to Claims 11-15 characterized in that the moisture content of the lamina and vein material after cut and drying is brought 18-39 wt%, preferably to about 19.5-25 wt% and further to about 22 wt% and reducing the moisture content further to about 13-16 wt%, preferably to about 14 wt%. 17. Procedure according to Claims 11-16 characterized in that soaked and rolled winnowings are added to the lamina and vein material. 18. Device for processing of tobacco vein material in making shredded tobacco for smoking articles characterized in that it comprises: a)a unit for applying heated soaking fluid upon the vein material; b) a drying tower for super drying of the vein material and c) an apparatus for repeated moistening of the vein material prior subjected to super drying to the values, required for subsequent steps of processing. 19. Device according to Claim 18 characterized in that a drum with two-channel spray nozzles is used for applying heated soaking fluid upon the vein material. 20. Device according to Claim 18 or 19 characterized in that an apparatus for soaking of the vein material is used before the moistening unit. 21. Device according to Claim 20 characterized in that a confined chamber is provided for storing of preliminary moistened vein material installed between the moistening unit and apparatus for soaking. 22. Device according to one of Claims 18-21 characterized in that steam-drying tower, preferably drum type-drying tower or tobacco drying tower Berlay type is used drying step. 23. Device according to one of Claims 18-22 characterized in that the drum for moistening or in the last chamber of the tobacco drying tower Berlay type is used as a moistening unit. 24. Device according to one of Claims 18-23 characterized in that after the moistening unit CRS unit is provided. 25. Device according to one of Claims 18-23 characterized in that an apparatus is provided for cutting of repeatedly moistened vein material, after which a mixing chamber is installed for mixing of the vein material with the lamina material, treated with soaking fluid. 26. Device according to Claim 25 characterized in that the mixing chamber is followed by a machine for cutting of the mixture and at least one drying tower for drying of the shredded mixture. 27. Device according to one of Claims 25or 26 characterized in that after the mixing chamber a line is provided for processing of winnowings with a device for rolling of said winnowings.