271 results about "Woodchips" patented technology

The invention discloses an automatic calculation and compensation method and system for dynamic strike delay of a laser weeding robot, and belongs to the technical field of agricultural intelligent equipment.The method is achieved through the following steps that in the static calibration stage, a laser galvanometer, a camera and collaborative parameters of the laser galvanometer and the camera of a robot system are corrected; laser scanning nonlinear errors, camera imaging distortion errors and pose and mapping errors between a galvanometer coordinate system and a camera coordinate system are eliminated; in the dynamic testing stage, the robot advances at a constant speed, laser striking is conducted on the wood chips with preset marks, and the position deviation between an actual striking point and a theoretical target point is obtained through the image recognition technology; reversely deducing system delay time based on the deviation and the speed of the robot, and iteratively updating compensation parameters; finally, after the iterative optimization strike deviation is smaller than the set precision, the compensation parameters are solidified to a control system; the method is suitable for a laser weeding robot and other dynamic visual striking systems.

The invention provides a high-performance wood-based metal electric heating material and a preparation method thereof. The wood-based metal electric heating material has excellent electric heating capability and relatively high tensile strength and can be molded and processed. The method comprises the following steps: immersing fibers obtained by dispersing and crushing thin wood chips into a sodium chlorite solution to decompose lignin, cleaning with distilled water, and drying to obtain wood fibers; the preparation method comprises the following steps: blending multi-walled carbon nanotubes and graphene in a mass ratio of (3-5): (4-7), adding 10wt% of the mixture into distilled water, adding 1-3wt% of a dispersant, and performing ultrasonic treatment to obtain carbon nano slurry; wood fibers are soaked in the carbon nano slurry, taken out and dried, then soaked in a silane coupling agent solution, taken out and drained; blending the powdery tin-bismuth alloy and thermoplastic high-molecular polymer powder according to a mass ratio of 1: 8-1: 12 to obtain low-melting-point alloy / polymer mixed powder; and the low-melting-point alloy / polymer mixed powder and wood fibers are blended according to the mass ratio of (1-3): 1, and high-temperature melt extrusion is performed.

1. Name of the designed product: wood chip candle wick. 2. Use of the designed product: the designed product is used as a candle wick. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.

The invention discloses an chemi-mechanical pulp production method capable of improving the filtration property of chemi-mechanical pulp, and relates to the technical field of papermaking, high-concentration grinding freeness is optimized to 640 + / -30ml, pulp fine fibers can be controlled at 22%-33%, the tensile index middle-lower limit and the bulk middle-upper limit, the high-concentration grinding effect is improved, the effect between fibers is facilitated, the effect between the fibers and a grinding sheet is reduced, and the filtration property of the chemi-mechanical pulp is improved. Fiber cutting is reduced, and the content of pulp fine fibers is reduced; the MSD torque is increased to 250 + / -10 KNM, the tearing effect of wood chips is improved, the preimpregnation reaction of the wood chips is facilitated, the original fine content is controlled to 26%-29% from original 22%-33%, the pulp bulk is increased by about 0.1 cm < 3 > / g, and the tensile index is increased by 1.0 N.m / g; the four low-concentration grinders are changed into parallel connection, so that the residence time of pulp in the low-concentration grinders is prolonged, the cutting effect of the pulp ground by the low-concentration grinders on fibers is reduced, light friction between grinding sheets and the fibers is increased, fibrillation of the fibers is facilitated, the bulk and the tensile strength are improved to a certain extent, and under the content of fine fibers, the size of the fibers is reduced. And the bulkiness and the tensile index of the finished pulp are also improved to a certain extent.

The present application relates to pulping technology field, the present application provides a kind of high-strength high-cleanliness chemical pulp's pulping process, with bamboo willow edge scrap as fiber raw material, after 1 stage pre-steaming, chip washing, dehydration, 2 stage pre-steaming;The wood chip material after 2 stage pre-steaming is 1 stage extrusion and is dissolved, 1 stage chemical liquid pre-impregnation, 2 stage extrusion and is dissolved, 2 stage chemical liquid pre-impregnation;1 stage chemical liquid pre-impregnation uses sodium hydroxide solution and does not use hydrogen peroxide, the chemical reagent of 2 stage chemical liquid pre-impregnation process is sodium hydroxide, hydrogen peroxide and sodium silicate;Material after 2 stage chemical liquid pre-impregnation is 1 stage refining, separation, cooling, 1 stage high-concentration bleaching, 1 stage dehydration, 2 stage high-concentration bleaching, 2 stage dehydration;Pulp after 2 stage dehydration is latent, refining etc., and the finished product is prepared.This application process can produce high-strength, high-cleanliness chemical pulp, and the pulp cost is lower, and the pulp quality is better, and it is beneficial to high-end cultural paper etc. application.

The invention relates to flexible hydrogel based on a cellulose framework as well as a preparation method and application of the flexible hydrogel, and belongs to the technical field of flexible hydrogel. In order to solve the problems that an existing flexible wood-based hydrogel process is low in efficiency, the microstructure is difficult to regulate and control and the performance is unbalanced, the invention provides a preparation method of a flexible hydrogel based on a cellulose framework, which comprises the following steps: delignifying natural wood chips to obtain delignified wood chips, and then carrying out alkali treatment under a time gradient to obtain the cellulose framework; the preparation method comprises the following steps: immersing the cellulose framework in a PAM precursor solution prepared from an acrylamide monomer, a cross-linking agent and an initiator in vacuum, and finally performing in-situ polymerization under ultraviolet light to obtain the flexible hydrogel based on the cellulose framework. Precise regulation and control of a supramolecular structure of the cellulose framework are realized through alkali treatment time gradient optimization, and the prepared cellulose framework has toughness and strength; structural integrity and function synergy of the ionic conductive hydrogel are guaranteed through an in-situ polymerization technology, and the application prospect of the flexible hydrogel is widened.

The present disclosure relates to a method for making fiberboard with a system comprising a plug flow screw, a cooker, a refiner, a blowline, and a press. The method comprises a), introducing woodchips to the plug flow screw; b). passing the woodchips through the plug flow screw to the cooker, c). adding a soy component having a protein dispersibility index (PDI) less than 50 to the cooker, d). passing the woodchips from step c) through the refiner to produce glued refiner wood fibers, e). passing the glued refiner wood fibers from d) through the blowhne to produce pressable wood fibers, f). optionally adding a water retardant, and g). pressing the pressable wood fibers under heat and pressure to form the fiberboard.

The invention relates to the technical field of pulping production, in particular to a spherical digester device for pulping. Comprising a fixing frame, a spherical heat preservation shell is arranged in the fixing frame, a spherical cooking shell is concentrically fixed in the heat preservation shell, rotating shafts are fixed to the two ends of the cooking shell, the rotating shafts penetrate through the heat preservation shell and are rotationally connected with the fixing frame, and a driving unit for driving the rotating shafts to rotate is arranged on the fixing frame. The cooking shell and the heat preservation shell are driven by the motor to rotate integrally, and a multi-dimensional mixed flow field is formed under the action of centrifugal force and gravity in combination with the baffle structures uniformly distributed on the inner circumference. The wood chips and the alkali liquor are repeatedly cut and dispersed by the baffles in the rolling process, the static accumulation and layering phenomena are broken, uniform permeation of fibers and the reaction liquor is achieved, and the cooking reaction time is greatly shortened.

The utility model discloses a mixed cross-laminated wood connected by bamboo nails, which mainly comprises discrete laminates, integral laminates and bamboo nails, the discrete laminates are formed by laying dimension materials or plates side by side, and the integral laminates comprise glued solid wood boards, plywood, laminated veneer lumber, directional wood chip boards and bamboo plywood. The preparation method of the mixed orthogonal laminated wood comprises the following steps: (1) assembling or processing discrete type laminates and integral type laminates to a set size; (2) when the mixed orthogonal laminated wood is manufactured, the discrete laminates are arranged on odd-numbered layers, the integral laminates are arranged on even-numbered layers, and adjacent laminates are orthogonally assembled; and (3) the adjacent laminates are connected through bamboo nails at the designated positions according to stress. The rolling shear performance of the cross-laminated wood is remarkably improved, glue joint is replaced by bamboo nail connection between laminates, and the mixed cross-laminated wood has the advantages of being excellent in structural performance, environmentally friendly, low in carbon and the like and can be widely applied to wall panels, floor panels and roof panels of building structures.

Device for transporting the wood chips produced by a chipper (1) and exiting its outlet opening (2) by means of a screw conveyor (8) which runs in a conveying tunnel (3) along the conveying direction (4), wherein one end (6) of the conveying tunnel (3) is open for the discharge of the wood chips, characterized in that the screw conveyor (8) is enclosed on all sides by the conveying tunnel (3), wherein one end (5) of the closed conveying tunnel (3) is connected to the outlet opening (2) via a connecting element in a flow-tight manner.

A manufactured wood panel with integrated fire-resistant (FR) inorganic material, and methods of production. The manufactured wood panel may be structural or non-structural, and strand-based, such as, but not limited to, oriented strand board (OSB). Noncombustible FR inorganic material, including but not limited to, mineral wool, sand, rock, and the like, is added to and mixed with the wood strands before, during, and / or after the blending process on the production line (i.e., mat forming line). The mats formed from the mixed strands and inorganic material arc then subjected to heat and pressure in a press. The panel may have multiple strand layers, with all or only some of the strand layers comprising the noncombustible material. The percentage of noncombustible material may be the same in all mixed layers, or may vary between layers.

The utility model relates to the field of raw wood processing, in particular to a raw wood rotary-cut automatic sheet collecting device which comprises a supporting frame and a discharging mechanism. A conveying device used for conveying wood chips is arranged on the right side of the supporting frame, and a discharging mechanism used for collecting the wood chips is fixedly connected to the left side of the supporting frame. The discharging mechanism comprises a guide frame, a guide rod, a receiving block and a compression spring a, the guide frame is fixedly connected to the left side of the supporting frame, a frame plate used for guiding wood chips is arranged on the upper portion of the guide frame, the receiving block is slidably connected to the lower portion of the guide frame and located below the frame plate of the guide frame, and the compression spring a is fixedly connected between the guide frame and the receiving block. According to the wood chip collecting device, the guide frame is arranged to guide the collecting position of the wood chips and is matched with the material receiving block to collect the wood chips, the wood chips are automatically and neatly collected, the wood chip collecting effect is improved, the collecting process is not affected by people, and therefore the collecting efficiency can be improved.

The invention relates to a method and an apparatus for the process-optimized production of manufactured wood boards, in particular oriented strand boards. In order to provide a method and an apparatus for the process-optimized production of manufactured wood products which make it possible to optimize quality while providing continuous quality assurance, which allow the best possible control variables to be determined particularly easily and quickly, and which also guarantee continuous production that results in the lowest possible wastage while maintaining the highest possible level of process stability, the invention provides the following: at least one process parameter, in particular the water content and / or the quantity of adhesive applied to the raw chip material, is measured in the course of the method by means of near-infrared spectroscopy; the measured values of the at least one process parameter are then sent to a control unit for process optimization and / or process-optimized control of the method, wherein the measurement of the at least one process parameter is taken at one or more positions, selected from: a position immediately upstream of the gluing, in particular between a dry raw chip hopper and the gluing station; a position immediately downstream of the gluing, in particular between the gluing station and a chip material distributor and / or a dispersing station; a position in the provision phase immediately downstream of a timber yard, in particular between the timber yard and a subsequent dryer; and / or a position in the provision phase immediately downstream of a dryer, in particular between the dryer and a sieving station and / or a dry raw chip hopper.

The utility model belongs to the technical field of candle supports, and particularly relates to a wood chip wick candle support convenient to carry, which comprises a base, the inner wall of the base is fixedly connected with a first bearing, the inner ring of the first bearing is fixedly connected with a worm, the bottom of the worm is fixedly connected with a rotating block, and the rotating block is fixedly connected with a rotating shaft. A first U-shaped plate is fixedly connected to the upper surface of the base, and first cylinders are fixedly connected to the front side and the rear side of the inner wall of the first U-shaped plate correspondingly. According to the wood chip wick candle support convenient to carry, through cooperation of the base, the first bearing, the worm, the rotating block, a first U-shaped plate, a first cylinder, a first cylinder, a worm gear, a folding support, a second cylinder, a second cylinder, a second U-shaped plate and a candle fixing base, a user can rotate the rotating block, and the height of the candle support can be changed; and by changing the height of the candle bracket, the candle bracket is more convenient to carry.

The application discloses an environment-friendly anti-deformation reed-wood composite shaving board and a preparation method thereof, belongs to the technical field of the board material, and the raw material of the reed-wood composite shaving board comprises wood chips, reed fibers, basalt fibers, lignin fibers, plant extracts, nano silicon dioxide, acetylated di-starch phosphate, C30-45 alkyl cetyl stearyl dimethicone cross-linked polymer, PEG-10 polydimethylsiloxane-vinyl dimethicone cross-linked polymer, methyl methacrylate cross-linked polymer, MDI adhesive and organic silicon waterproof agent in specific proportions. The components are used in cooperation, the shaving board is prepared in a directional mode, has excellent mechanical properties, is resistant to cracking and deformation, and is improved in the environmental protection performance, and the usage amount of glue is reduced. The novel formaldehyde-free adhesive and the plant extracts are adopted to replace traditional formaldehyde-containing glue and mold-proof and insect-proof agents, formaldehyde release is effectively avoided, and a healthier home decoration board selection is provided for consumers.

The utility model discloses an automatic feed hopper for burning biomass and wood chips, which comprises a hopper, a feed port is arranged on one side of the top of the hopper, a crushing component is arranged in the hopper, a discharge plate is arranged at the bottom of the hopper, and a dispersing component is arranged in the discharge plate. A motor is turned on to drive a rotating shaft to rotate, so that a sleeve drives a cutting knife to rotate to smash wood chips, the rotating shaft rotates to drive a reciprocating lead screw to rotate, so that a sliding block drives a connecting rod to move up and down to do reciprocating motion, a mounting ring drives the sleeve to move up and down to do reciprocating motion, and the cutting knife can smash the wood chips more thoroughly; and secondly, gas is conveyed into the air conveying pipe by turning on the draught fan, airflow is sprayed out from the air outlet pipe, wood chips falling after smashing are dispersed, accumulation is prevented, the contact area of the wood chips and oxygen is increased, and biomass materials are more sufficiently burnt.

The utility model relates to the technical field of impurity separation, and discloses a wood chip impurity separation device which comprises a separation mechanism, a slag blowing mechanism and an angle adjusting mechanism, and the separation mechanism is located at the bottom of the slag blowing mechanism. The motor is started to drive the connecting rod to rotate, the rotating wheel is fixed to the outer wall of the connecting rod and drives the first rotating wheel to rotate through the belt, meanwhile, the first rotating wheel is fixed to the fixing rod, the eccentric block is fixed to the outer wall of the fixing rod, and when the eccentric block rotates, the fixing rod drives the screen to vibrate; the fixing columns are fixed to the bottom of the screen, the outer walls of the fixing columns make contact with the springs, the fixing columns and the first fixing columns limit the springs, so that the screen vibrates, wood chips on the surface are separated from impurities, meanwhile, wood can move forwards, it is guaranteed that the wood cannot be stacked on the screen, and continuous automatic production can be achieved; the requirement of manual operation is reduced, and the automation and the efficiency of production are further improved.

The utility model discloses a medium density fiberboard processing wood chip screening machine which comprises a base, the base is connected with a screening assembly used for screening raw materials for medium density fiberboard processing wood chips, and the screening assembly comprises a screening piece which is installed on the base and used for screening out impurities in raw material mixtures, the screening part comprises a rotating cylinder rotationally connected to the right end of the upper side of the base, a filtering cylinder used for filtering impurities is installed on the left side of the rotating cylinder, and a recycling box used for receiving the impurities is placed on the portion, corresponding to the lower side of the filtering cylinder, of the upper side of the base. According to the wood chip screening machine for medium-density fiberboard processing, the air cylinder assembly is matched with the push plate, materials retained in the rotating cylinder and the filter cylinder are guided out, the material recovery rate is increased, and the water pump, the three-way valve, the corrugated pipe, the water spraying ring, the branch pipe and the water spraying strip are matched with one another, so that the inner wall and the outer surface of the filter cylinder are cleaned.

A membrane device includes a vacuum device main body having a plurality of vacuum holes such that a real wood sheet to be temporarily attached to a core is mounted in the vacuum device main body, a cover having a silicone film to define a vacuum space together with the vacuum device main body, a vacuum module to suck air in the vacuum device main body through the vacuum holes, and a control unit to compress the real wood sheet and the core for a preset time by sucking air in the vacuum space through the vacuum holes. The control unit removes the vacuum from the vacuum space by controlling the vacuum module so that the compressed real wood sheet is detached, and the vacuum device main body includes sliders to perform wrapping the real wood sheet around the inside of the core while moving upward.

The utility model provides a wood chip pre-evaporation tank which comprises a pre-evaporation tank body, a feeding screw rod, a lifting plate, a feeding motor and a wooden plug screw, the lower portion of the pre-evaporation tank body is connected with the wooden plug screw, the feeding screw rod is installed in the middle of the pre-evaporation tank body, the upper portion of the feeding screw rod is connected with the feeding motor, and the lower portion of the feeding screw rod is connected with the wooden plug screw. The lower part of the feeding screw rod extends to the upper part of the spiral joint of the pre-evaporation tank body and the wooden plug; a plurality of guide rods are arranged at the top of the pre-evaporation tank body, the guide rods are parallel to the feeding screw rod, the lifting plate is mounted on the guide rods in a sliding manner, and the feeding motor is mounted at the upper part of the lifting plate. The feeding motor is installed on the lifting plate, the feeding screw can move up and down through the telescopic rod during feeding, the feeding screw can move downwards to make contact with wood chips and push the wood chips to be discharged during material shortage, feeding pushing force can be generated through the spiral plate and the telescopic rod at the same time during feeding, and the material pushing effect is improved; and the problem of material blocking caused by wood chip bridging is avoided.

The invention relates to a degradable antibacterial and antiviral wood-based air filter material and a preparation method thereof. The preparation method comprises the steps that S1, softened wood is sliced in the direction perpendicular to the wood growth direction, and a plurality of wood chips with graded porous pore structures are obtained; s2, the prepared multiple wood chips are stacked at a preset rotation angle, and the wood-based air filter material with the stacking layer number being m is obtained; s3, preparing a treatment solution containing an aggregation-induced photosensitizer; and S4, treating the wood-based air filter material by using the treating fluid, and drying to obtain the degradable antibacterial and antiviral wood-based air filter material. The degradable antibacterial and antiviral wood-based air filter material prepared by the preparation method disclosed by the invention simultaneously has double functions of efficient interception and pathogen in-situ inactivation, is good in biodegradability and has no burden on the ecological environment, so that the degradable antibacterial and antiviral wood-based air filter material has potential advantages and huge application prospects in the fields of air pollution prevention and control, precise prevention and control of major epidemic diseases and the like.

The present invention belongs to the technical field of solar sludge drying, and specifically relates to an auxiliary material, preparation method, regeneration method and application for treating sludge. The method comprises: (1) punching wood chips to obtain porous wood chips; wherein the diameter of the wood chips is 2-3 cm, and the pores in the porous wood chips have an aperture of 2-4 mm; (2) step-drying the porous wood chips; wherein the step-drying at least comprises a first soaking and a first drying of the porous wood chips, a second soaking and a second drying, and then a third soaking and a third drying. The wood chips prepared by the method have good plasticity and toughness as auxiliary materials for sludge drying, and will not crack or break during drying. The addition of the auxiliary material can quickly absorb free water in the sludge, rapidly reduce the water content of the sewage, increase the porosity of the sludge, promote the loss of water inside the sludge, improve the air permeability and the sludge drying efficiency, and shorten the drying cycle.

This utility model relates to the field of papermaking technology and discloses a wood chip hydrolysis pulping device, including a mixing mechanism, an auxiliary mechanism on the left side of the mixing mechanism, and a crushing mechanism at the bottom of the auxiliary mechanism. The mixing mechanism includes a heating tank with an inlet pipe connected internally, and support feet fixedly connected to the outer wall of the heating tank. This utility model supports the heating tank with the support feet. Wood chips enter from the top of the heating tank, and the inlet pipe injects hydrolysate into the heating tank. A support plate supports a motor, which drives a rotating rod to rotate. The rotating rod drives a crushing rod to further crush the wood chips, while a stirring plate ensures thorough mixing of the wood chips and hydrolysate. The crushing rod reduces the volume of the wood chips, allowing for rapid absorption of the chemical in the central area of ​​the wood chips, improving hydrolysis uniformity. The stirring plate enhances the mixing effect between the wood chips and hydrolysate. Combined with precise temperature control in the heating tank, this shortens the reaction time and improves production efficiency.

The application discloses a method for improving the alkali impregnation yield of fiber raw materials, wherein after qualified wood chips are obtained by screening the fiber raw materials, at least one dry heat treatment is performed on the washed and dehydrated fiber raw materials before alkali impregnation, the treatment temperature is 105 DEG C to 130 DEG C, and the total treatment time is 10 min to 60 min. According to the method, under the condition of not being chemically modified, only by using relatively mild heat treatment, the precursor small molecules originally in the cell cavity are connected with the main structure of the fiber raw materials by free radical condensation as much as possible, so that the alkali impregnation yield of pulping of the chemical mechanical pulp is improved, the subsequent paper pulp performance is ensured, the pulping cost is saved, and the emission of pollutants is reduced.

The present invention relates to a novel method of impregnating wood, as well as wood chips to be subsequently used for wine aging. The wood chips are impregnated with a liquid food product or a dry residue of the liquid food product.

The invention discloses a low-temperature synergistic oxidation pretreatment process and application of wood chips for spirit aging and retaining fruit tree characteristic flavor. The method comprises the steps of (1) wood chip preparation, (2) ozone oxidation treatment, (3) ultrasonic-assisted tea polyphenol dipping treatment, (4) infrared gradient drying treatment and (5) natural airing. The process is easy to operate and low in energy consumption, and the application value of the wood chips in ageing of spirits such as whisky and Chinese liquor is remarkably improved.

To provide a hydrolysis acceleration method of cellulose for decreasing molecular weight of cellulose in an organic sludge and a food residue while suppressing the carbonization rate.SOLUTION: In a hydrolysis acceleration method of cellulose with a carbon rate not exceeding 50% by hydrolysis treatment of an organic sludge including a food residue by a super heated steam reaction at 200°C or under while maintaining a water content of around 50% in the presence of a blended reaction acceleration agent including a crushed powder having an average grain size of 10 mm±5 mm in length including saw dusts, wood waste chips, dry straw, chaff, branches, barks, wood chips, and dry plants as the main component, in which the organic sludge is subjected to a contact reaction with a super heated steam of 300°C or under in a reactor for hydrolysis at 200°C or under so as to decrease molecular weight to hemicellulose. The reactor is assembled with a ribbon blender formed by providing an inner blade 152 and an outer blade 153 around a main inertial axis. A counter flow stirring motion wherein a stirred product flows to the inside by the outer blade, thus strong collision repeatedly occurs while the stirred product flows to the outside by the inner blade to collide with a side case and moves to the outer blade repeatedly occurs.SELECTED DRAWING: Figure 3

A wood chip sampling machine comprises a three-axis driving system, a sampling head is fixedly connected to the lifting end of a lifting driving mechanism of the three-axis driving system and comprises a sampling motor, a speed reducer is connected to an output shaft of the sampling motor, and the output of the speed reducer is fixedly connected to the center of a sun gear of a planetary gear reduction gearbox. A gear ring of the planetary reduction gearbox is connected with a drill cylinder connecting sleeve, a drill cylinder is fixedly connected to the drill cylinder connecting sleeve, a drill rod connecting sleeve is fixedly connected to the center of the sun gear, a drill rod is fixedly connected to the drill rod connecting sleeve and located in the drill cylinder, the upper portion of the drill cylinder is a small cylinder part, and the lower end of the small cylinder part is fixedly connected with a conical part. The lower end of the conical part is fixedly connected with a large barrel part, the lower end of the drill rod is fixedly connected with a spiral blade, the lower end in the small barrel part is fixedly connected with a flange separation blade, the spiral blade on the drill rod is located in a space below the small barrel part, and a plurality of discharge ports are formed in the circumferential surface of the conical part. The wood chip sampling machine can replace manual work to complete wood chip sampling operation.