125 results about "Wood production" patented technology

The invention discloses a method for producing a recombinant composite board by using waste wood. The method comprises the following steps of: (1) preparation of a core board, (2) veneer finishing, (3) board blank gluing, blank matching and pre-pressing, (4) hot pressing, (5) trimming and sanding, and (6) inspection, grading and repair. The method has the advantages that: the square board of certain specification is manufactured by making full use of the waste wood, the core layer is spliced by using glue, two layers of veneers are covered on two sides of the core layer respectively, the recombinant composite board with five-layer structure is manufactured by hot pressing, and the reclaimed waste wood is used for substituting solid wood, so the material channel is broadened; low carbon, environment friendliness, greenness and resource property of the recombinant composite board are highlighted; the comprehensive utilization rate of the waste wood is improved, and the additional value and the technological content of the waste wood product are increased; and high use of small material, preferential use of poor material, fine use of coarse material and elaborate use of weak materialare realized in the waste wood.

The invention discloses a method of recombined module wood production by using secondary processing wood such as peeling board or reconstituted decoration lumber scrap. The method includes the steps of: vapor treating at a high temperature or digesting in oxydol and caustic soda, drying, gumming, further drying after being gummed, trimming, compression moulding, consolidating at a high temperature and obtaining the recombined module wood; the density of the obtained wood reaches 0.8-1.2kg/cm<3>, and the obtained wood has unique texture, fine texture and superior performance, and no need for treatments of insect prevention, mold prevention, corrosion resistance and cracking prevention. The obtained wood can be directly applied to fields of flooring, furnishing, building, etc., and is characterized by cracking resistance, deformation resistance and so on. The method has simple procedure, makes good use of the waste and greatly saves the forest resource by producing module wood with the waste secondary processing wood, thus, being an ideal substitute of the log.

The invention relates to a carbonized wood production process, which comprises the following steps of: 1) cutting and flattening wood; 2) conducting flame jet carbonization treatment to the surface of the wood by using a flame jet device; and 3) grinding the surface of the carbonized wood and removing the carbonized part on the surface of the wood. The flame jet device comprises an oxygen cylinder and a jet gun. By using the characteristics that the texture of the wood is loose and soft and the hardness is different, and by using the oxygen jet gun to jet flames onto the surface of the wood, the carbonization degree of the loose and soft part is high, the carbonization degree of the hard part is low and the surface of the wood has stereoscopic natural textures after grinding. The carbonized wood production process has the advantages of simple carbonization method, easiness in operation, simple equipment and low use cost.

The invention discloses a production process of ecological floors produced with an especially natural wood production technology, adopts high density fiber boards as the substrate material and includes the following steps of: 10 days of curing; cutting the material into small pieces to form floor blanks and 7 days of curing; groove opening and 7 days of curing; spraying waterproof paint at a naked part of the groove; coating an oily adhesive agent, two shaded priming paints, two ink printing patterns and finally a top coating on the back; 24 days of curing; coating an oily adhesive agent and a transparent putty on the front face; making 240 meshes of sanding, and varnishing two shaded priming paints, two ink printing patterns and a wear resistant priming paint on the front face; varnishing a sanding priming paint , making 320 meshes of sanding and varnishing a wear resistant priming paint on the front face; varnishing a sanding priming paint, making 320 meshes of sanding, varnishing an additive color priming paint, rolling a top coating, spraying a top coating and finally rolling and coating a scratching resistant top coating on the front face; packaging after all paints are dried and 7 days of curing. The production process protects the environment, saves materials with real and beautiful surface effects; and the floors can not easily deform and each performance is excellent.

The invention discloses a biomass granular fuel. Raw materials comprises the following components in proportions by weight: 4 to 6 parts of shaving, 12 to 18 parts of wood chip, 0.1 to 0.4 part of swelling agent and 0.1 to 0.4 part of flame accelerator, wherein the water content of the shaving is 4 to 6 percent; the wood chip is a mixture of a wood chip of which the water content is 25 to 35 percent and a wood chip of which the water content is 8 to 10 percent according to a weight ratio of 1 to 2. The invention also provides a processing method of the biomass granular fuel. The processing method comprises pulverization, primary mixing, secondary mixing, tertiary mixing and granulation. The biomass granular fuel which is provided by the invention and is processed by utilizing the production waste of a timber is more convenient to use and transport; the resource utilization rate is improved; the heat value of the biomass granular fuel can reach 4500 to 4700 kilocalories per kilogram; a liquid fuel is added into the raw materials in a spraying manner as the flame accelerator; sodium hydrogen carbonate and ammonium hydrogen carbonate are used as the swelling agent; the combustion performance of the biomass granular fuel is further improved; according to the biomass granular fuel and the processing method thereof, the raw materials are subjected to the primary mixing and the secondary mixing; the uniform distribution of moisture is facilitated; the flame accelerator is atomized and sprayed into a secondary mixture; the uniform distribution of the flame accelerator is promoted.

The invention relates to a wood drying device and drying method, in particular to a side draught fan type cabin wood drying device and drying method. In order to solve the problems that an existing wood drying production device and method waste energy, pollute environment and prolong the wood production machining period, imported wood has the large medical inspection and insect removing workloads, and an existing wood transportation ship cannot achieve the function of wood drying in the remote transportation way, the device comprises a cabin, a cabin-interior equipment bearing frame, a drying device humidity adjusting air exchange system, a wood drying medium forced circulating system, a heat exchanger system, a drying medium state monitoring sensor system and a dried wood water containing rate monitoring sensor system. The method comprises the steps of wood stacking, cabin cover closing, wood drying, drying degree detection of the wood, and drying medium state adjusting according to a detection result. The device and method are used for drying and insect removal treatment in the wood transportation process.

A method for modifying wood by biologic and photoelectric techniques features that the biologic enzyme preparation is used to remove xylose from wood. said biologic enzyme preparation is prepared from cellulose, alpha-amylase, neutral proteinase, beta-amylase, xylanase, beta-glucanase, pectinase and neutral lipase. The modified wood can be used for music instrument.

The invention discloses a cutting device for wood production and processing. The cutting device comprises a moving seat, an upper end of the moving seat is provided with a working table, a cavity is opened in the working table, and the cavity is provided with a first threaded rod horizontally, a supporting plate is arranged on the first threaded rod, the supporting plate is rotatably connected with the first threaded rod, a placing plate is arranged on the right side of the supporting plate, a first motor is arranged on the upper end of the placing plate, and the first threaded rod is connected with the driving end of the first motor, and the lower end of the placing plate is provided with a bracket, the first threaded rod is symmetrically sleeved with moving blocks, and each moving blockis screwed with the first threaded rod, a first limit rod is arranged in the cavity horizontally. The cutting device has a stable structure, a simple operation, a scientific and reasonable design, a short production period, low production cost, is easy to control the thickness of wood cutting, easy to adjust the height of a cutter, easy to move, save a lot of time and energy of workers, and is worth promoting.

The invention discloses a nano silicon dioxide modified wood production method including five steps of pretreatment, preparation of a wood modification agent, preparation of a wood modification fluid, dipping treatment and post-drying treatment, wherein the wood modification agent comprises nano silicon dioxide, fatty alcohol polyoxyethylene ether, distilled water, trimethyl borate, dodecyl dimethyl benzyl ammonium chloride, N-(2-benzimidazole)-methyl carbamate, and imidacloprid. The beneficial effect is that the nano silicon dioxide modified wood production method has the advantages of simple treatment process, easy operation, low cost, good treatment effect, no toxicity, environmental friendliness and the like, the treated wood has no obvious appearance change, and wood dimensional stability, density, surface hardness, bending strength and bending elastic modulus, good processing properties, wear resistance, anti-corrosion flame retardant properties are greatly increased.

The invention discloses a novel carbonized wood production method which comprises the three steps of wood impregnation pretreatment, wood high temperature treatment and wood surface treatment, wherein an impregnation modified liquid in the wood impregnation pretreatment is a mixed solution composed of a sodium silicate solution, nano silicon dioxide powder, nano titanium dioxide powder and a zinc borate solution with the weight part ratio of the sodium silicate solution to the nano silicon dioxide powder to the nano titanium dioxide powder to the zinc borate solution being (4-6) to (0.5-0.7) to (0.3-0.7) to (1-3); and during the cooling period in the wood high temperature treatment, a batch-type steam injection method is adopted for cooling, the temperature in a carbonization chamber is decreased to 115 to 125 DEG C at the speed of 7 to 12 DEG C/h, and the temperature is maintained for 1.3 to 1.7 h, then, the temperature is decreased to 90 to 100 DEG C at the speed of 4 to 6 DEG C/h, and the temperature is maintained for 0.5 to 0.9 h, the wood is subjected to humidity conditioning and moisture regaining treatment for 7 to 9 h through steam with the same temperature, the moisture content of the wood is regulated back to 4 to 7%, and finally, the temperature naturally drops to the room temperature.

The invention discloses a high-yield planting method of mustards in established Italian poplar forests. The method is characterized by comprising the following steps: (1) selecting Sichuan and Zhejiang mosaic mustard varieties which have the characteristics of good lump shape, obliquely upward leaf, late bolting, strong cold resistance, harmful bacterium resistance, high yield and high quality; (2) clearing up forest lands; (3) carrying out tillage-free planting; (4) carrying out drought prevention and fertilization; and (5) timely harvesting. In the method disclosed by the invention, the resources such as precious lands and sunshine and the like in established forests are fully used so as to vigorously develop green mustards, which both ensures that the quality of forest trees and the wood production rate are high, and ensures that the quality of mustards, the yield of mustards and the forest farm benefit are high, thereby enriching the social wealth, increasing the earnings of farmers, consolidating the forestation effect, and speeding up the forest and ecological development speed.

The invention relates to a filmmaking and assembly method and a pressing process of a tobacco stalk laminated plate, which belong to the production industry of non-wood plant stalk plates, in particular to a filmmaking and assembly method and a pressing process of the tobacco stalk laminated plate, which are used for producing a man-made plate by using tobacco stalks as raw materials to replace wood. Aiming at various defects existing in the production process and the technical formulation of the non-wood plant stalk man-made plates, the invention designs a tobacco stalk filmmaking method and an assembly paving method as well as a pressing process. The invention can effectively improve the plate strength, simplifies the production procedure, and lowers the manufacture cost; and the specific procedure can be detailed in the description.