39 results about "Woodchips" patented technology

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.

This invention discloses a method and device for optimizing and controlling the hydrothermal environment of green roofs based on modified matrix synergy, belonging to the field of green building technology. The method involves acquiring meteorological parameters and roof structure requirements of the target area to determine the hydrothermal control objectives, and customizing a modified matrix formula composed of garden soil, gravel, and wood chip biochar, pretreated for porosity optimization. A layered structure is constructed, and sensors collect data such as matrix moisture content, roof temperature, and rainfall intensity in real time. Based on a coupling algorithm, the porosity and height of the water storage and drainage layer are dynamically adjusted to achieve hydrothermal control through the synergistic effect of the modified matrix's water retention and thermal insulation properties and vegetation evapotranspiration. The control effect is periodically evaluated, and the matrix ratio and water storage and drainage layer parameters are iteratively updated. The device employs an intelligent modular adjustable ventilated water storage and drainage layer, with built-in sensors and a drive motor, and a distributed data acquisition and control module to achieve intelligent control. This invention solves the problems of poor adaptability and weak hydrothermal control capabilities of traditional green roofs.

The utility model relates to fuel feeding technology field especially relates to a wood chip fuel precision feeding device, including feed inlet, the first motor is provided with in feed inlet front end, the shell is fixedly connected with feed inlet lower extreme, the first motor output is fixedly connected with first linkage wheel, the linkage axle is rotatably connected with shell front end, the threaded push -on rod is fixedly connected with linkage axle rear end, the discharge gate is fixedly connected with shell lower extreme rear side, the second motor is fixedly connected with discharge gate front end, the runner is fixedly connected with second motor output, the fixed ring is fixedly connected with shell inside, the linkage lever is rotatably connected with fixed ring inside, the driving gear is fixedly connected with linkage lever upper end outside, through the cooperation design of second motor and driving gear, makes the transition cavity to form in discharge gate when the sector baffle rotates, avoids the direct contact of discharge gate and combustion chamber, prevents the direct contact of high temperature flue gas with the wood chip in threaded push -on rod through feed inlet.

The application discloses a kind of high thickness of high bulk pulp and its preparation process, belong to papermaking technical field.The technical scheme is as follows: including the following steps, raw material preparation and pre-soaking treatment, reaction bin reaction, high consistency refining treatment, bleaching, latent elimination, low consistency refining, screening and washing, 1) raw material preparation and pre-soaking treatment: the raw material wood chip is broken, then pre-soaking is carried out, control pre-soaking temperature 80~90 ℃, pH value 9.8~10.2, liquid level ≥50%, ADI back pressure ≥4bar, NaOH dosage is 1.5%~2.0% of dry wood chip weight;2) high consistency refining treatment: the wood chip after pre-soaking is sent into high consistency refiner for refining, refining consistency 35~45%;3) bleaching: pulp after refining is sequentially subjected to one-stage bleaching and two-stage bleaching.The application process has high stability, and can realize the synchronous and stable improvement of bulk and freeness.

A wood chipper for obtaining wood shavings from wood chips, comprising: a closed structure having a feed port through which wood chips can be introduced into the structure; a cutter ring disposed within the structure, wherein the cutter ring has a substantially horizontal central axis and an inner surface, and includes a plurality of cutting elements projecting from within the inner surface; a rotor disposed within the cutter ring, wherein the rotor includes a plurality of impact elements disposed on a circle centered on the central axis; a drive mechanism actuated to rotate the rotor and / or the cutter ring relative to each other about the central axis, such that each impact element moves relative to the cutting elements in a corresponding tangential direction; wherein the rotor includes a plurality of clamping elements, each clamping element being associated with a corresponding impact element to project relative to the corresponding impact element in a corresponding tangential direction, and together with the corresponding impact element defining a seat adapted to receive at least one wood chip.

The present application provides a kind of complex enzyme preparation and the pretreatment method of pulping wood / bamboo piece using the complex enzyme preparation, and the complex enzyme preparation comprises: enzyme component: xylanase 50-70%, mannanase 10-20%, weak endo-cellulase 5-10%; auxiliary agent: biological penetration agent 0.1-0.5%, metal ion activator 0.01-0.1 ‰, enzyme stabilizer 3-8%, anti-inhibitor 0.5-2%; the balance is water.It is applied, the complex enzyme preparation is made into enzyme solution, and then wood piece or bamboo piece is treated, and then closed stacking or heat preservation reaction is carried out, then extrusion is carried out and is separated and ground pulp.The stability, penetration and LCC dissociation efficiency of the enzyme preparation are improved by the synergy of temperature-resistant and alkali-resistant enzyme system, the addition of functional auxiliary agent and the process of mechanical extrusion.

This utility model provides a zero-carbon emission heating boiler system, including: an inner auger tube, a gasifier, a waste heat boiler, a denitrification cylinder, and a feed auger. The inner auger tube is equipped with a set of feed augers for introducing raw materials such as rice husks and wood chips. A set of gasifiers for gasifying the raw materials is located on the right side of the feed augers. Three sets of gasifiers are arranged side by side. Compared with the prior art, this utility model has the following beneficial effects: the raw materials such as rice husks and wood chips are burned and gasified through the gasifiers, and the high-temperature flue gas generated by combustion is recovered. At the same time, the biochar generated by burning the raw materials such as rice husks and wood chips can be collected through a storage tank and used as renewable fuel.

This invention discloses a method for treating bleached chemithermomechanical pulp using a novel wood chip pretreatment enzyme, belonging to the field of pulp and paper production technology. The method includes the following steps: enzymatic pretreatment of wood chips: Raw wood chips are reacted with a compound enzyme preparation in an enzyme treatment reactor to target and soften the hemicellulose within the wood chips; mechanochemical synergistic treatment: The enzymatically pretreated wood chips are sequentially subjected to mechanical extrusion tearing and chemical pre-impregnation treatments; thermomechanical pulping and bleaching: The mechanochemically synergistically treated wood chips are thermomechanically ground to obtain pulp, and the pulp is then bleached to obtain bleached chemithermomechanical pulp. This invention significantly reduces grinding energy consumption and chemical consumption while ensuring pulp quality.

The novel high-strength wood chip shaving device comprises an installation frame and a shaving bin, the shaving bin is fixedly installed on the surface of the installation frame, a feeding port is formed in the surface of the top of the shaving bin, a conveying bin is fixedly installed on the portion, located on the top face of the installation frame, of the outer side of the feeding port, and an electric cylinder is fixedly installed on the top face of the conveying bin. The wood chip shaving machine has the advantages that the conveying bin is adopted, when wood chips are shaved, the wood chips can be inserted into the conveying bin, the top face of the mounting frame is smooth, the electric cylinder extends to push the lifting frame to move downwards and drive the driving roller to abut against the wood chips, and then the first driving motor drives the driving roller to rotate and drives the wood chips to move into the wood chip bin; a second driving motor drives a wood shaving disc to rotate and drives wood shaving teeth to rotate to shave wood chips, the trouble of manual hand holding is omitted, using is safer and more reliable, meanwhile, the wood chips are pressed by a driving roller, the feeding stability is improved, and the working stability and the working efficiency are improved.

This invention relates to the field of pulp and paper technology, specifically a method for recycling chemimechanical pulp residue. The method includes the following steps: S1: Pre-treating the chemimechanical pulp residue by separating wood chips, wood strips, and wood dust according to size using a drum-type grading screen; S2: Performing at least two stages of grinding on the pre-treated pulp residue, first coarsely grinding it into granules using a wood grinder, and then finely refining it into wood fibers using a high-speed refiner; S3: Performing multi-stage gradient screening on the wood fibers to remove different types of impurities; S4: Modifying the screened wood fibers using a low-consistency dual-disc mill to improve their water absorption and binding strength; S5: Mixing the modified wood fibers with long fibers and obtaining the finished fiber through a three-stage concentration process. This invention constructs a complete technical chain from graded pre-treatment to specific mixing and concentration, effectively solving the problems of equipment blockage caused by uneven pulp residue composition and poor binding strength of recycled fibers, achieving high yield and high-quality recycling of pulp residue.

A method of controlling a woodchipper apparatus, the apparatus having a powertrain to provide torque to a rotor disc having blades, an infeed mechanism adapted to feed or prevent feed of material to t

The present invention relates to a process for producing eco-flex biofuel from lignocellulosic biomass, preferably eucalyptus wood chips, which generates high-energy-yield products such as biochar, bio-oil and condensable gases with low energy consumption and low cost, whilst being sustainable, suitable and having a low environmental impact. The present invention also relates to biofuel produced from biomass, which is suitable for use in the steel industry, particularly, but not exclusively, in blast furnaces.

This utility model relates to the field of automotive solid wood interior technology, specifically an intelligent automotive solid wood interior molding device. The device includes a base plate, a support plate and a lower mold fixedly mounted on the upper surface of the base plate, an upper mold movably mounted above the lower mold, a support plate fixedly mounted on the upper surface of the upper mold, a spiral blade fixedly mounted on the upper surface of the support plate, and a cylinder mounted on the upper surface of the support plate. Connecting plates are provided on both sides of the support plate, and the connecting plates are fixedly connected to the output end of the cylinder. This utility model involves hot-pressing wood chips, performing shallow stretching 3D molding, and then injection molding to form a composite automotive interior part of real wood and plastic. This replaces traditional screen printing or UV printing solutions, improving the realism of printed wood grain textures, achieving a more natural texture, reducing VOC emissions, and solving the problems of environmentally unfriendly inks, odors at high temperatures, and easy delamination between ink and plastic parts.

This utility model relates to the field of cutting machine technology, specifically disclosing a double-blade wood chip cutting machine, including a base and a control panel. A worktable is provided on the base. A first cutting mechanism and a fixing block are mounted on the worktable via a mounting bracket. The first cutting mechanism is located at the front end of the worktable and includes a first cutting blade and a first hydraulic cylinder for driving the first cutting blade up and down. A second cutting mechanism is located below the worktable at the rear end and includes a second cutting blade and a second hydraulic cylinder for driving the second cutting blade up and down. The fixing block is located between the first and second cutting mechanisms and is connected to a fixing cylinder for driving its up and down movement. The first hydraulic cylinder, the second hydraulic cylinder, and the fixing cylinder are all connected to the control panel. This utility model has a simple structure, is easy to operate, has a fixed position, and provides accurate cutting dimensions. It can effectively reduce labor intensity, improve processing efficiency, and meet processing needs.

The present application relates to the technical field of hydrogel materials, in particular to a ferulic acid-mediated high-adhesion hydrogel composition, a hydrogel and a preparation method and application thereof.The ferulic acid-mediated high-adhesion hydrogel provided by the present application not only has good mechanical properties, but also has excellent adhesion and sensing properties.In detail, the maximum tensile strength of the ferulic acid-mediated high-adhesion hydrogel is 149.7 kPa, and the tensile strain is 460% at this time.The adhesion effect on various material surfaces is good, and the adhesion strengths on pig skin, glass and wood pieces are 153.9 kPa, 233.4 kPa and 313.2 kPa respectively.The gel still maintains stable electrical signals after 150 times of tensile cycles under 50% strain conditions as a strain sensor, which indicates that the sensing performance has stability and repeatability.Therefore, the ferulic acid-mediated high-adhesion hydrogel provided by the present application is applied in the field of wearable electronic devices.

A system (1) for refining pellets or wood chips (2) by heat comprises a driven rotatable drum (3) which extends along and is rotatable around a longitudinal axis (4). The drum (3) has a product inlet (6) for receiving the pellets (2) or wood chips at a first end (7) of the drum (3) and a product outlet (8) for dispensing the pellets (2) at a second end (9) of the drum (3). The drum (3) comprises multiple baffles which, upon rotation of the drum (3), are adapted to circulate the pellets or wood chips (2) in the drum (3) and to convey the pellets or wood chips (2) from the product inlet (6) to the product outlet (8) along a conveying direction (12). The baffles extend parallel to the longitudinal axis (4) from the first end (7) towards the second end (9) of the drum (3). The baffles are mounted at equal angular distances from one another in a circumferential direction of the drum (3), thereby forming multiple openings through which a heating medium streams into and out of the drum (3). The system (1) further comprises a housing (110) surrounding the drum (3). The housing (110) comprises an inlet port (13) for introducing the heating medium into the housing (110) and towards the drum (3) and an outlet port (14) for dispensing the heating medium from the housing (110) and away from the rotatable drum (3). The system (1) further comprises a heating system (15) for heating the pellets or wood chips (2) in the drum (3) comprising at least one heating circuit (16) with the heating medium and with a heat source (17). The heating circuit (16) has a supply line (19) connecting the heat source (17) and the inlet port (13) of the housing and a return line (20) connecting the outlet port (14) of the housing (110) and the heat source (17). The heating medium is superheated steam, which is supplied through the supply line (19) from the heat source (17) to the inlet port (13) of the housing (110), streams through the housing (110) and through the rotatable drum (3) and returns through the return line (20) from the outlet port (14) to the heat source (17). The heat source (17) is adapted to deliver heat to the heating medium to produce superheated steam.

The utility model discloses a kind of multi-specification adjustable wood chip strip slitting device, including processing table and slitting mechanism.Processing table is formed by bracket, workbench and inclined guide plate, and form plank cutting path.Slitting mechanism includes lower cutting assembly and upper cutting assembly: lower cutting assembly includes lower cutting shaft with array saw blade and drive motor, and the axial position adjustment of upper cutting shaft is realized by slide rail adjusting unit in upper cutting assembly.Innovatively, double-shaft offset design is used, lower cutting shaft is in front, upper cutting shaft is in back, the vertical interval of two shaft centers is less than saw blade diameter, and offset setting is formed.The device realizes stepless adjustment of saw blade spacing by slide rail adjusting unit, and adapts to different specification requirements;The collaborative design of guide plate and offset cutting shaft ensures that plank is automatically separated from cutting area, and safety is improved.The utility model solves the technical problems of traditional equipment, such as single specification, insufficient precision and big safety hazard, and has the advantages of convenient adjustment, high cutting precision, good safety and the like.

This application relates to a leveling support for the middle and lower layers of asphalt, belonging to the technical field of asphalt construction. The leveling support includes: a fixed base plate; a support panel, elliptically mounted on the fixed base plate for supporting a steel wire rope; and an adjusting component installed on the fixed base plate for adjusting the height of the support panel. During leveling, the height of the support panel can be adjusted using the adjusting component to change the height of the steel wire rope, ensuring the wire rope reaches the designed loose paving height and reducing paving thickness errors. Since there is no need to find temporary bricks, wood chips, or similar items on-site, only the leveling support needs to be carried to adjust the steel wire rope, thus facilitating the leveling of the middle and lower layers.

A method for producing high-bulk grey paperboard and a pressing and dewatering device, relating to the field of papermaking technology, includes the following production method: S1, waste paper pulping is graded into short-fiber pulp and long-fiber pulp, both of which are then enzymatically treated, refined, and inactivated; S2, the fiber raw materials are biologically treated and then chipped into wood chips, which are then enzymatically treated and fermented, inactivated, and then the wood chips are sequentially steamed, extruded, cooked, and refined. A bond-breaking agent is added to the refined pulp to increase the concentration, and it is refined again. A cross-linking agent is then added for pre-blending to form mechanical pulp; S3, the top and bottom layer pulps are respectively used to form top and bottom layer wet paper webs, and a thickening agent is added to the core layer pulp to form a core layer wet paper web, which is then laminated into paperboard wet paper webs; S4, the paperboard wet paper webs are sequentially subjected to pre-pressing, steam box heating, large-diameter press, boot press, and gloss press; S5, drying; and S6, winding into finished paper. This invention effectively solves the inherent contradiction between high bulk and dewatering efficiency, significantly improving the bulk and bonding strength of the finished paper.

The application discloses a kind of papermaking wood chip sample automatic quality inspection method and system based on image recognition, belong to intelligent visual target detection technical field, including in the bagging papermaking wood chip sample outside stick bar code, identify wood chip sample information, determine the wood chip type that this sample bag should be equipped with, wood chip sample enters three-stage vibration screen, and the good piece screened is carried out impurity sorting processing, industrial video camera carries out target identification, identifies the wood chip type consistent with bar code mark, manipulator according to the object pose and edge extraction result obtained, low-grade wood chip, bark and foreign matter are identified and selected, respectively placed to different weighing table, overturning mechanism is weighed on the wood chip weighing tray on weighing table overturn to bagging conveyer or directly into bagging hopper, realize the bagging and packaging of wood chip, can effectively inspect the quality of wood chip sample, carry out strict, efficient quality detection to papermaking wood chip, lay foundation for the quality evaluation of papermaking wood chip.

The utility model discloses an edge cutting device for group blank laying plate line, including conveying mechanism and setting in the side of conveying mechanism edge cutting mechanism, the two symmetrical setting of edge cutting mechanism riser, and the height of cutting table that the middle part of riser is provided with is consistent with the height of conveying belt of conveying mechanism, the inboard of riser is provided with slide rail, and the slide rail slidingly connects with slide base, and the slide base is connected with the seat of knife in coordination, and the top of riser is provided with cylinder seat, and the cylinder seat is provided with hydraulic cylinder, and hydraulic cylinder is connected with the seat of knife transmission, the utility model discloses the edge cutting mechanism that sets up, and the edge of plate blank is cut in the edge cutting before the pressing procedure, avoids the ragged edge to be broken and to form the wood chip scattered on the board surface of plate blank when the plate blank is stacked and the like operation to cause the surface of plate blank to appear the indentation after the pressing procedure of follow -up, has improved the quality of board, and reduced the cost of production.

The present application relates to a kind of paper pulp mill wood chip drying preparation method and system, specifically, at the head of dryer, buffer bin and supporting components are installed, so that the material to be dried can quickly and smoothly enter the drying cylinder, and the smooth material flow also makes the drying air flow circulate smoothly in the dryer, and by matching the corresponding industrial control parameters, the wood chip drying standard is realized once, the cost is reduced, the efficiency is increased, energy saving and emission reduction are realized.

This invention discloses an integrated intelligent air-washing wood chip purification device for light, heavy, and metal contaminants, relating to the field of dust removal equipment technology. It includes an electrical control box and a housing. The housing is fixedly installed on the right side of the electrical control box. A rectangular frame is fixedly inserted through the side of the housing near the electrical control box. A side-blowing device is fixedly installed on the side of the electrical control box near the rectangular frame. The air outlet of the side-blowing device is flush with the inner wall of the rectangular frame. A feed inlet and a dust extraction inlet are provided at the top of the housing. Two symmetrically arranged collection hoppers are provided at the bottom of the housing. A servo motor drives a plastic guide plate to rotate, and the scraper pusher utilizes its own weight to slide and clean the material. This automatically cleans the metal foreign objects adsorbed on the working surface of the plastic guide plate, achieving efficient unloading and recycling of metal foreign objects.

The utility model discloses a kind of anti-clogging hopper conveying devices for boiler, it is related to the technical field of boiler feeding, including feeding rack, feeding hopper and feeding conveyor belt, feeding hopper lower side is equipped with feeding conveyor belt, feeding conveyor belt is installed with feeding rack, the outlet end side of feeding conveyor belt is equipped with mounting bracket symmetrically, first anti-clogging roller is rotatably arranged between two mounting brackets, the inside upper side of one end of feeding hopper close to first anti-clogging roller side is equipped with second anti-clogging roller, first anti-clogging roller and second anti-clogging roller are rotatably connected respectively with two connecting seats at the both ends of second anti-clogging roller, and the outer wall of first anti-clogging roller and second anti-clogging roller is equipped with scattering tooth group;The utility model can realize that wood chip in feeding hopper is blocked by feeding conveyor belt and is conveyed into boiler by first anti-clogging roller and second anti-clogging roller once a large amount, and first anti-clogging roller and second anti-clogging roller can be scattered by scattering tooth rod of multiple scattering tooth groups when rotating.

This application discloses a wood chip feeding mechanism, including a support frame, a feeding bin, a pushing component, a feeding component, and a blowing system. The feeding bin is mounted on the support frame and is open at both ends. Multiple clamping protrusions on the same plane are provided on the lower ends of the inner walls of its four sides. The pushing component is located directly above the feeding bin and is used to press down on the wood chips to disengage them from the clamping protrusions. The feeding component is spaced below the feeding bin and includes a receiving frame and two tensioning motors. Clamping protrusions are located at the center of the four inner sides of the receiving frame, with their height lower than the height of the clamping protrusions. The tensioning motors are symmetrically located on the outer sides of the opposite side plates of the feeding bin and are used to pull the receiving frame upwards so that the wood chips abut against the lower ends of the clamping protrusions. The blowing system is located at the interval between the feeding bin and the feeding component and sprays airflow onto the upper and lower surfaces of the wood chips to remove dust. An unbalanced clamping force is created by the height difference between the clamping protrusions and the clamping protrusions, causing the abutted wood chips to fall automatically under gravity, achieving efficient feeding and simultaneous cleaning.

This invention provides a wood chip grading, buffering, and tear-prevention device for a large-span circular stacker conveyor, relating to the field of bulk material conveying protection technology. It includes a device body and a conveyor belt, with the conveyor belt mounted below the device body via a conveyor fixing frame. The device body includes a material collection and guiding assembly, a three-stage segmented buffer assembly, and an elastic shock-absorbing mounting assembly. The three-stage segmented buffer assembly includes a layered mounting main frame, buffer rollers, multi-component layered support brackets, and multi-component segmented limiting partitions. The material collection and guiding assembly includes a top guiding hopper and side guiding barriers. The elastic shock-absorbing mounting assembly includes elastic shock-absorbing supports and a rubber-coated layer for the rollers. The beneficial effects of this invention are: by using three layers of staggered buffer rollers, a non-straight-through material drop channel is formed; by relying on differentiated spacing, wood chip grading and stress relief are achieved, avoiding vertical impact of sharp-edged wood chips on the conveyor belt, evenly distributing the drop load, preventing concentrated material impact, effectively preventing the conveyor belt from being punctured or damaged, and extending its service life.