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Specifika sušení řeziva při nízkých teplotách
Jarkovský, Petr
This thesis is addressing problems associated with the drying of oak timber in a condensing dryer. The fundamental of the work is verification of suitability of modi-fied drying durations and evaluation of the quality of the crustiness of the dried oak timber. The state of the crustiness is rated via two different methodologies, by the fork test according to ON 49 0651 and by the central cut test as prescribed in ČSN PEN V 14464. The results of both methods are compared. A part of research is also an eva-luation of the possibility of timber damage during the drying process. The work is sup-ported by experiments and practical measurements on test samples whose results are finally graded.
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Přibyslav - Návrh dřevostavby rodinného domu
Smejkal, Martin
The subject of the thesis is a design of a single-floor detached house with a frame construction for a family of four to five members in Přibyslav. The house of a bungalow type is designed for a specific building site with a slightly sloping terrain. The basic idea of the assignment is a presumption that the timber for the construction will be taken as round timber from own wood. The theoretical part of the work deals with the definition of the requirements and regulations for developing of necessary technical documentation for the realization of the wooden house. Subsequently, defects and the protection of the wood are described as well as the types of saws, which is necessary for processing of the practical part of the thesis. The principal part of the thesis leads to the realization of the design documentation of a specific house which is essential for the calculation of the amount of the timber for the realization of the construction and for the comparison of the options of round timber logging, moving it closer, its transport and cutting. For comparing there is another option which is considered: the ready-to-use timber is purchased and the round timber from the wood is sold. The conclusion of the work deals with the summarizing and evaluating of the discussed issue.
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Optimization of technological machines and equipment for timber production
Fiala, Martin ; Sarvašová Kvietková, Monika (advisor) ; František, František (referee)
Abstrakt v AJ
Bc. Fiala M. DiS.: Optimization of technological machines and equipment for timber production [ Masters thesis] Czech University of Life Scienses. Faculty of Forestry and Wood. Qualification level: Ing.
The topic of this masters thesis is the optimisation of a timber producing facility. The aim of the thesis is to design an optimal solution within the genuine production environment. The present state of the facility is described in the first part of the thesis focusing on the main sections of the sawmill and the facility in general. In the second part the process of determining the amount of material, different methods of debarking, cutting and different types of band saws are described. The third part focuses on the process optimisation, in this thesis the log conversion depot and the preparation of the input material. The final part of the thesis covers a summary of the thesis.
Keywords
saw mill, lumber, sawmill.
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Úprava pilařského provozu ŠLP v Olomučanech
Tupý, Roman
The thesis documents and analyse the current situation of the saw-mill in Olomoučany. The saw-mill was established by Školní lesní podnik Masarykův les Křtiny which is an organizational part of Mendel University in Brno. Further, alternatives of possible adjustments relating to efficiency of main saw-mill machinery, sawn wood production, the shift operation and evidence are proposed. The third part recommends optimal adjustments for current saw-mill equipment which take into account processed products and technological state of the equipment.
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Návrh modernizace výroby a její ekonomické vyhodnocení ve firmě Halama Invest, s.r.o., Senec
Koiš, Marek
In this Diploma thesis is general description of company Halama Invest, s.r.o., its management organization, production planning and its technological equipment. Technological drawing of sawmill and timber manufacturing process represent the current state of the production. There are elaborated three possibilities of modernization of sawmill, their advantages and disadvantages, differences among various technological operations. The comparison results of these possibilities is the evaluation based on production efficiency and return of investment. There have been defined recommendations and suitable options in development of the mentioned company in the future.
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Využití odpadů na pile v Prusinovicích
Měrka, Tadeáš
This work compares the possibilities of use of wastes and proposes a method of its use, suitable for the conditions of the sawmill in Prusinovice. It based on from the total volume and ranges of processed material with representation individual ranges produced lumber, technological flow of production and achieved yield. It focuses on all types of wastes generated during the production, their place of origin, volumes, character, features and usability. At the same time focuses on the species of timber drying kilns, a range of sizes and types of dried lumber and its input and needed output moisture. It sets the average consumption of heat per unit volume of dry timber for its main product and for the type of drying kilns, the heat consumption for heating buildings of plant and the amount of heat that can be obtained by incineration of wastes. It sets options cover the energy needs of the plant and the possibilities of sale or buying individual types of waste, including the treatment. The work proposes alternatives of use of sawmill wastes for heating and drying timber in the sawmill in Prusinovice, evaluates and recommends optimal variant.
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Optimalizace výroby na pile fy Opluštil v Ladné
Válek, Michal
The thesis deals with optimalization of production in relation to higher operation efficiency at sawmill Opluštil in Ladná. The author proceeds from current state of the sawmill, its facilities and way of production. In the introduction is described the state of operation, there are mentioned particular production and non-production operations. Technological equipment is mentioned as well. In the practical part is carried out the analysis of production, derived yield of cut timber and there are stated weak points in production. Subsequently, there are proposed three options for possible future production optimization.The thesis results in recommendation for future production which can help the owner with decision about further company development.
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