Experimental technology and equipment for the production of wood flour
https://doi.org/10.21266/2079-4304.2024.247.291-301
Abstract
Currently, the issue of increasing the efficiency of wood waste processing is relevant. Wood processing waste is a raw material for the production of a wide range of wood consumer goods or serves as raw materials in the production of non-wood materials. There are various directions for processing wood waste to produce various materials, including the use of bulk wood waste, where they must be crushed to wood flour. From a technological and energy point of view, the shredding of wood waste should be carried out by cutting. The article proposes a technology and equipment for deep crushing of bulk woodworking waste in order to obtain the final product in the form of wood flour. In the shredder, rough destruction of chips occurs under the action of knives. Then, in the first cutting plane, due to rotating blade metal plates, the primary grinding of the material takes place, its further passage through the through holes of the counter knife plate and additional grinding in the second cutting plane, followed by the exit of the finished product from the shredder. Experiments have shown that with an increase in the cutting speed, as well as with a decrease in the pitch of the knives, the amount of feed to the knife decreases, and therefore the size of the crushed particles decreases. The final product of the device is wood flour in the form of wood particles, 95% of which passes through a 1,25×1,25 mm sieve. It has been established that the crushing of bulk wood waste is rationally carried out not by impact, not by abrasion, but by cutting, as the most effective method.
About the Authors
A. R. BirmanRussian Federation
BIRMAN Alexey R. – DSc (Technical), Professor of the Department of Technologies of Logging Production
194021. Institutsky per. 5. Let. U. St. Petersburg. Russia
ResearcherID: X-3713-2019
S. A. Ugryumov
Russian Federation
UGRYUMOV Sergei A. – DSc (Technical), Professor of the Department of Technologies of Logging Production
194021. Institutsky per. 5. Let. U. St. Petersburg. Russia
Researcher ID: F-6510-2016
B. M. Lokshtanov
Russian Federation
LOKSHTANOV Boris M. – PhD (Technical), teacher of the department no. 3
194064. Tikhoretsky av. 3. St. Petersburg. Russia
Researcher ID: HTT-4599-2023
V. V. Orlov
Russian Federation
ORLOV Vitaly V. – PhD (Technical), teacher of the department no. 3
194064. Tikhoretsky av. 3. St. Petersburg. Russia
ResearcherID: HTT-4468-2023
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Review
For citations:
Birman A.R., Ugryumov S.A., Lokshtanov B.M., Orlov V.V. Experimental technology and equipment for the production of wood flour. Izvestia Sankt-Peterburgskoj lesotehniceskoj akademii. 2024;1(247):291-301. (In Russ.) https://doi.org/10.21266/2079-4304.2024.247.291-301