17 results about "Saw dust" patented technology

The utility model provides a kind of slot saw device of servo adjustment, including saw trolley frame, the saw trolley frame one side is provided with slot saw dust hopper, the one end of slot saw is rotatably arranged in saw trolley frame, and front and back adjusting mechanism for the front and back movement of slot saw in slot saw dust hopper inside is installed on saw trolley frame, and front and back adjusting mechanism includes small saw servo drive motor, worm wheel, worm and first bearing, the output end of small saw servo drive motor drives worm rotation, worm and worm wheel transmission connection, and worm wheel is internally screw-threaded connection with saw core shaft, to drive saw core shaft in perpendicular to saw trolley frame direction moves, the utility model is integrated design by the parameterization input of operating panel operating panel and automatic execution system, and the degree of automation of slot saw device is improved, and the plate processing accuracy is improved, by setting servo motor-synchronous pulley-worm wheel worm composite transmission system realization displacement accurate control, realize slot saw front and back displacement accurate control.

This application discloses a multifunctional fruit tree pruning saw, relating to the technical field of fruit tree pruning tools. It includes: a saw head comprising a protective housing, a working motor mounted on one side of the housing, and an output shaft of the working motor extending into the housing and mounting a saw blade; a handle portion, which is connected to the tail end of the housing; wherein, a hinge seat is also provided at the front end of the housing, and at least two arc-shaped steel bars are rotatably mounted on both sides of the hinge seat, and a collection box is also installed at the bottom of the arc-shaped steel bars for collecting sawdust falling during pruning. This application's rotatable arc-shaped steel bars and collection box can effectively collect sawdust generated during high-altitude pruning, improving the working environment and enhancing work comfort. The arc-shaped steel bars not only serve as a mounting bracket for the collection box but also act as a guide, guiding branches accurately to the saw blade, thereby reducing operational difficulty and improving cutting accuracy and efficiency.

This invention relates to the field of backfill technology, specifically to a green material for backfilling cofferdam boreholes and its preparation method. The green material for backfilling cofferdam boreholes comprises the following components by weight: 21-33 parts cement, 3.5-4.5 parts bentonite, 60-70 parts clay, 3-5 parts modified sawdust, 60-66 parts deionized water, and 2-6 parts modified fiber. The green material for backfilling cofferdam boreholes prepared by this invention has good hydration ability and strong compressive strength. Furthermore, through the combination of modified sawdust and modified fiber, a mechanical interlocking effect is formed between them, effectively improving the cohesiveness of the prepared backfill material.

This invention discloses a sintered NdFeB magnet and its bluing process, relating to the field of magnet corrosion protection technology. The bluing process includes the following steps: dry polishing of the NdFeB black sheet using a composite polishing medium to remove surface oil, dust, and a dense oxide layer, exposing a fresh active substrate and forming a rough interface; the composite polishing medium consists of stone particles, shell particles, and sawdust; and bluing the polished NdFeB black sheet to induce an oxidation reaction on the substrate surface, generating a blue Fe3O4 protective film. This bluing process achieves a magnetic loss repair rate of up to 1.19%, while simultaneously achieving zero chemical emissions, zero wastewater generation, and replacing expensive controlled atmospheres with zero-cost air. It also fundamentally solves the rigid constraints of process connections caused by wet material overprinting, providing a surface protection solution for NdFeB magnets that combines environmental friendliness, high corrosion resistance, magnetic property repair capabilities, and low cost.

The application provides a low-cost Gastrodia elata Blume seed storage and maintenance method, and belongs to the technical field of Chinese medicinal material seed storage. In view of the three problems of rot caused by condensate water droplets, alcohol poisoning caused by lack of oxygen in sealing, and water loss caused by excessive ventilation in the existing storage mode, the application adopts a heat preservation foam box, a polypropylene geotextile sheet and a single-hole sealing cover to construct a storage device, through naked storage of the seed, complete coverage of the geotextile sheet and cooperation of the 3-5 mm single-hole micro-ventilation in the center of the cover, a storage micro-environment of 'water preservation without water accumulation and air permeation without air drying' is realized under the condition of 2-5 DEG C and 60%-70% relative humidity. The application does not need filling medium such as river sand and sawdust, the rot rate is controlled within 2%-3%, the weight loss rate is less than or equal to 2%, the germination rate is greater than or equal to 95%, the artificial cost is reduced by more than 60%, the cold storage utilization rate is increased by more than 50%, the seed can be stored throughout the year and planted in baskets in all seasons, the seed source guarantee for fresh Gastrodia elata Blume supply throughout the year is provided, and the application is suitable for farmers, cooperatives and small and medium-sized cold storage scale application.

The invention provides a means to delay the melting of ice used on board a ship and maintain the freshness of seafood without using electricity or refrigeration equipment. [Solution] The present invention involves placing sawdust 3 derived from coniferous trees as an insulating material on the bottom 2a, sides 2b, and top 2c of a polystyrene foam container, and containing only ice inside. This configuration delays the melting of ice used on board a ship and enables low-temperature maintenance without the use of electric or mechanical cooling devices. The stored ice is then placed in a livewell on board the ship to lower the water temperature inside the livewell.

A method of manufacturing a fertilizer comprising biomass, consists in that the biomass comprising, in dry matter, simple and complex proteins in an amount from 8 to 30% by weight and phosphorus compounds in an amount from 1 to 3% by weight P2O5, is mixed with at least one carbonaceous raw material selected from the group comprising lignite, bark, sawdust, humus, compost, peat and straw in an amount of 5 to 20% by weight in relation to the biomass, is ground to a particle size of less than 5 mm to produce a pulp with a dry matter content from 10 to 70%, then the resulting pulp is mixed with at least one evaporite mineral selected from the group comprising polyhalite, calcite, dolomite, gypsum, anhydrite, carnallite, sylvite, barite, after which the whole is dehydrated to a dry matter content from 40 to 85%, then mixed with alkaline raw materials in an amount sufficient to control the temperature of the mixture in the range from 60 to 140ºC and obtain a moisture content of less than 30%, preferably 10 to 15%, and then the product obtained is granulated to obtain granules with sizes from 1 to 5 mm, and alkaline raw materials forming inorganic coatings are applied to the surface of the granules, after which a substance forming an outer coating is sprayed.

This utility model discloses a dust removal mechanism for profile cutting, mainly relating to profile cutting. It includes a cover and a base plate disposed below the cover; the bottom surface of the cover is funnel-shaped, and a worktable is provided above the cover with a movable opening; a discharge port is provided below the base plate, connected to the cover, and a negative pressure component is connected to the discharge port. The negative pressure component generates negative pressure and adsorbs sawdust through the movable opening, which is then discharged through the discharge port below the cover. The beneficial effect of this utility model is that it can timely adsorb sawdust through negative pressure during profile cutting, thereby preventing sawdust from splashing everywhere and scratching the profile surface, and from entering the components driving the displacement and rotation of the saw blade, thus affecting the cutting accuracy of the saw blade.

The utility model discloses a sawing edge device for plate production relates to plate production technical field, including feeding assembly, and the one side of this feeding assembly is equipped with the transfer assembly for the transfer plate, and the middle section of transfer assembly is equipped with cutting assembly, and cutting assembly is fixedly connected with collection assembly, the lower extreme of feeding assembly is located in the recess of foundation, feeding assembly includes the elevator for bearing plate, and the both ends of this elevator are equipped with outer frame, and the top of outer frame all is equipped with horizontal shift pole, and the plate is located between a plurality of horizontal shift poles, two saw blades can cut the both ends of plate respectively, and the sawdust and dust raised in saw blade cutting wood board can be sucked away by air suction machine, and the sawdust and dust raised are entered air suction machine through suction material shell and hose, and finally fall into collection bag, and the convenient centralized collection processing, the dust bag can increase the activity space of sawdust and dust raised, and airflow can flow in dust bag, prevent airflow all from entering collection bag and make the sawdust and dust raised in collection bag unable to settle down, reduce dust pollution.

This utility model discloses a process for producing mushroom spawn (Volvariella volvacea) using tobacco midribs and sawdust as the primary substrates. The method involves preparing and processing 25 kilograms of tobacco midribs, 25 kilograms of initially composted sawdust, and ½ kilogram of agricultural lime. Key steps include soaking the tobacco midribs to soften them, chopping them to size, and mixing them with sawdust and lime to form the substrate. The substrate's moisture content is adjusted to 50%-55%, after which it is filled into 470­ ml glass jars and pasteurized for 8 hours. After cooling, mycelial blocks are inoculated into the prepared media, and the mixture is incubated for 1-2 weeks until full colonization. This method provides an efficient and sustainable approach to mushroom spawn production, utilizing agricultural by products.

This invention discloses a high-calorific-value biomass pellet fuel and its preparation method. The fuel consists of 35% solid wood sawdust, 45% walnut shells, and 20% cotton stalks. The preparation method includes: slicing, drying, coarsely crushing, and sieving the solid wood sawdust and cotton stalks to remove impurities; coarsely crushing the walnut shells separately; mixing the coarse powders of the three raw materials, finely crushing them, and then forming them into pellets with a length of 5 cm and a diameter of 1 cm using a pellet mill. The fuel has a lower heating value of 20.9 MJ / kg (approximately 5000 kcal / kg), an as-derived sulfur content of 0.05%, a nitrogen content of 0.49%, and an ash content of 1.86%, with extremely low combustion pollutant emissions. This invention realizes the resource utilization of agricultural and forestry waste, with a simple and controllable process, and produces a high-calorific-value, clean, and environmentally friendly product that can replace fossil fuels.

The utility model belongs to multilayer board tray processing technical field, concretely relates to a dust collector for multilayer board tray processing, including tray cutting table and the installation of tray cutting table bottom surface in dust absorption cover, the bottom end of dust absorption cover is connected with steel pipe, the other end of steel pipe is connected with fan, the other end of fan is connected with dust absorption pipeline, the other end of dust absorption pipeline is connected with sediment tank, the utility model discloses a multilayer board tray is placed on tray cutting table and is processed, the sawdust impurity produced in processing passes through the start of fan to make that the negative pressure is produced in dust absorption cover and is entered into the sediment tank through dust absorption pipeline, and the small particle impurity is removed through filter screen, and after that, airflow is discharged through the air outlet pipe, thereby the sawdust waste produced when multilayer board tray is processed is collected in batches, reaches the effect of dust removal, avoids that pollutant is not controlled and scatters to the workshop all around, and maintenance cost is reduced.

The application discloses a kind of vision-protecting diffuse reflection dew prevention sound-absorbing paint and preparation method.The paint includes bottom coating and surface coating;The bottom coating is two components, including self-made foamed soil enhancer, nano magnesium oxide dispersion, nano barium sulfate dispersion, magnesium sulfate and wollastonite powder, acicular calcium silicate fiber powder, modified sawdust particles, modified foamed soil mixture and the like;Surface coating includes nano silicon dioxide dispersion, modified hydrophilic silica sol, nano magnesium oxide, nano barium sulfate, modified foamed soil mixture, lithium water glass and nano aerogel slurry and the like.The application forms three-dimensional network porous structure through the synergistic effect of bottom and surface layer, so that coating has high diffuse reflectivity (≥95%), excellent moisture absorption dew prevention (moisture absorption amount ≥41g / ㎡), good sound-absorbing noise reduction (sound-absorbing coefficient 0.52-0.83) and heat insulation function, effectively protect vision and improve indoor environment.

This application discloses a multi-element plant-derived waste and peat particle size distribution matrix, which is composed of 20-60g of pine cone shells with a particle size of 3-5mm, 10-80g of sawdust with a particle size of 1-12mm, 10-80g of Chinese herbal medicine residue with a particle size of 1-10mm, 0-60g of peat with a particle size of 3-12mm, and 10-80g of biochar with a particle size of 2mm; the total porosity of the obtained matrix is ​​72.9%-75.4%, and the water-holding porosity is 40.3%-57.9%. This compound substrate is made from pretreated pine cone shells, sawdust, Chinese herbal medicine residue, and biochar, and can replace peat. When used to plant Kalanchoe, the plant height, plant width, number of flowers, and the number, width, and diameter of flowers in the terminal cymose inflorescence are all significantly better than those of peat substrate. This substrate can significantly improve the physical and chemical properties of the substrate, promote the growth of Kalanchoe and enhance its ornamental quality, and has the highest overall score. It can completely and effectively replace peat to provide the nutrients required for plant growth, and the plant growth performance is significantly improved compared to using peat alone.

This utility model discloses a wood cutting machine with anti-splash function. The support mechanism includes a support platform; the cutting mechanism is set on the support platform for cutting wood strips; the sliding mechanism includes two sets of sliding components symmetrically arranged on the support platform, on both sides of the cutting mechanism, for sliding movement of the wood strips; the limiting mechanism includes two sets of limiting components, respectively set on the top surface of the two sets of sliding components, for limiting and fixing the wood strips; the dust collection mechanism includes two sets of dust collection components, respectively set on the top surface of the two sets of sliding components, for absorbing sawdust generated during wood cutting. This wood cutting machine with anti-splash function reduces environmental pollution and accumulation of sawdust on the top surface of the support platform, thus reducing the impact on the health of workers.

The utility model belongs to condenser leak -stoppage technical field, concretely relates to a kind of online directional leak -stoppage device of generator set condenser, including condenser body, the connector is arranged on the condenser body, the connector is connected with water pipe, electromagnetic valve is arranged on the water pipe, the water pipe is connected with the discharge pipe of sawdust storage tank, the discharge pipe is connected with pressurizing pump by connecting pipe, the inside of sawdust storage tank is provided with dispersion subassembly and auxiliary blanking component.The online directional leak -stoppage device of generator set condenser is used by sawdust storage tank, connector, water pipe and electromagnetic valve, when the heat exchange pipe of condenser leaks, sawdust storage tank can discharge sawdust, then it is stably conveyed to the heat exchange pipe of leaking condenser by pressurizing pump, directional plugging is realized, meanwhile, the use amount of sawdust can be saved, operation amount is reduced, and work efficiency is improved by cooperating with the use of leak detection device.

The application discloses a kind of multi-scene applicable high-performance leak-stopping repair materials and preparation method and application, belong to oil and gas field engineering material technical field.The material includes by mass fraction: 32~37 portions of parent modification flexible material, 24~29 portions of parent modification rigid material, 31~34 portions of parent modification biomass material, 1~2 portions of dispersing agent, 2~3 portions of suspension stabilizer.Parent flexible material is modified xanthan gum, modified superfine asphalt powder, modified superfine butyl nitrile rubber powder compound;Parent modification rigid material is made of modified nano hexagonal boron nitride and modified silicon carbide whisker compound;Parent modification biomass material is made of corn cob powder and sawdust powder by parent modification.The application is modified by three kinds of core components, which can be stably dispersed in water-based, oil-based and oil-water mixed system, has the characteristics of temperature resistance, salt resistance, high pressure resistance, long-term stability, etc., and can adapt to various lost formation such as pore, fracture and cave.