Study of the possibility of using logging residue for the production of wood processing enterprises

Zyryanov, Mihail; Medvedev, Sergey; Mokhirev, Aleksandr

doi:10.5937/jaes18-22611

Cited by 8 publications

(6 citation statements)

References 1 publication

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“…Зачастую, если на 1-й операции работает одна машина комплекта, то на 2-й -две-три, а на 3-й -одна-две и т. д. объем выработки на операциях при этом все равно остается разным. особенность лесосечных работ заключается в том, что каждый раз между выполняемыми операциями создаются технически и технологически перемещаемые запасы древесины [2-6, 9, 17] -все операции в технологическом процессе, за исключением погрузки и вывозки, связаны ими между собой [14,15,18,27]. Несбалансированность объемов выработки приводит к простоям наиболее производительных (головных) машин и снижению общего объема их выработки до минимального на одной из основных операций, т. е. Q = min {Q} = Q min .…”

Section: объекты и методы исследованияunclassified

The Use of Logging Machinery Sets in the Republic of Bashkortostan

Заикин¹,

Sivakov²,

Bulkhov³

et al. 2022

Lesnoy Zhurnal (Forestry Journal)

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The disintegration of the integrated logging enterprises, as well as of the forestry enterprises and the reduced attention of the authorities to the production of specialized machinery and equipment, the logging production process, have led to a decline in the equipment of the logging enterprises with specialized machinery and the effective organization of their operation. Small, privately owned, poorly equipped with machinery logging companies have emerged. Practically we reverted to the technology of the 1960s. Foreign chainsaws are used for felling, delimbing and crosscutting. The skidding operation practically uses general-purpose tractors of МТЗ-80(82) type with the simplest technological equipment – a set of chokers. Some of the larger companies use foreign harvesters and forwarders. According to our research, forestry farms of the Republic of Bashkortostan are in a similar position. In order to increase the level of equipment and improve the organization of its work at the enterprises of the Republic of Bashkortostan we have considered and proposed for use a number of machinery sets. However, practice shows that it is not enough to acquire and equip the production with modern machinery and equipment. A production process must be set up to ensure the effective operation of these machines. Logging as a complex, multi-operated, discrete process can be carried out using a variety of technologies. The most common technology nowadays is the logging and hauling of assortments, for which various harvesting machines and equipment can be used. For the effective operation, harvesting machines performing individual operations are combined into machinery sets. However, current practice shows that it is not possible to match machines and equipment with the same or slightly different capacities. Therefore, the output of such sets is usually equal to, or even lower than, the output of the operation with the lowest capacity. In order to increase the output of the machinery set to the output of the leading machine (the machine with the highest capacity), it is necessary to calculate the modes of operation of machines for specific operating conditions. There are five sets of logging machines offered. The costs that the use of each of them will require are calculated. On the basis of the obtained data it is concluded that in the conditions of the Republic of Bashkortostan it is most economically feasible to use the following set: chainsaw for felling, choker tractor for skidding, two chainsaws for delimbing and crosscutting, lumber carrier for hauling.

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Section: объекты и методы исследованияunclassified

The Use of Logging Machinery Sets in the Republic of Bashkortostan

Заикин¹,

Sivakov²,

Bulkhov³

et al. 2022

Lesnoy Zhurnal (Forestry Journal)

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“…Logging with the use of machinery can be carried out by different technological schemes [1,2], various types and collections of machines [3,4,5], and one of the main tasks that arise when performing hauling operations is the task of minimizing the harmful effects of logging equipment on natural environment (trees left for growing), especially during improvement felling [6]. Therefore, the main goal in terms of the environmental friendliness of the use of machinery and technology should be to ensure the maximum increase in labor productivity, providing the rational use of the entire tree biomass and the minimum machines impact on forest ecosystems.…”

Section: Introductionmentioning

confidence: 99%

Damage reduction of trunks of trees left for growing during selective felling

Sivakov,

Zaikin,

Chemchikova

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Forest management improvement is an important task, especially in the context of the development of forest areas with a depleted resource base. When carrying out non-clear cuttings, the main operation that has the greatest negative impact on the trees left for growing is skidding, during which trees located along the portage and, especially, at the turn, can receive damage, consisting in damage to the root system and trunk bark. It is possible to prevent damage to the trunks of trees left for growing by using fencing devices, which can be made from logging resi-dues located in the cutting area, or from slabs obtained by sawing logs. The use of a protective device does not require large expenses due to the use of substandard wood; after skidding the devices can be easily removed and put on other trees.

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“…There are a few references in the literature regarding the effects of adding different fibers to the panels structure. The fibers' morphological characteristic is fundamental when specific fiberboards, such as Medium Density Fiberboard (MDF), are employed and analyzed [70][71][72][73].…”

Section: Introductionmentioning

confidence: 99%

Experimental Analysis of the Thermal Performance of Wood Fiber Insulating Panels

et al. 2023

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During the last decades, attention to energy and environmental problems has significantly grown, along with the development of international and national policies addressing sustainability issues. In the construction sector, one of the most widespread energy efficiency strategies consists of thermal insulation of buildings thanks to external insulating panels. Among these, wood fiber is an insulating material characterized by a natural, eco-sustainable and biodegradable structure, coming from the recycling of waste wood from sawmills. The present study aimed to characterize small test building insulated with wood fiber panels from the thermal point of view, comparing the results with those of an identical, non-insulated reference test building. The experimental campaign highlighted several advantages and an excellent thermal performance provided by the eco-sustainable solution of wood fiber insulating panels: Lower values of the thermal transmittance (−57%), thus ensuring greater stability of the internal air temperature and better values in terms of attenuation (−60% in summer and −74 % in winter) and phase shift (+2 h in summer and +2.28 h in winter) compared to those obtained from the reference building. The material is also equipped with an Environmental Performance Declaration (EPD) that certifies its environmental benefits.

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Study of the possibility of using logging residue for the production of wood processing enterprises

Cited by 8 publications

References 1 publication

The Use of Logging Machinery Sets in the Republic of Bashkortostan

The Use of Logging Machinery Sets in the Republic of Bashkortostan

Damage reduction of trunks of trees left for growing during selective felling

Experimental Analysis of the Thermal Performance of Wood Fiber Insulating Panels

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