107 results about "Watermill" patented technology

The invention relates to the technical field of metallographic phase preparation, and in particular relates to a method for displaying and treating Cr12 type martensitic heat-resistant steel primary austenite grain boundary by high-temperature oxidation and room temperature erosion. The method comprises four steps of preparing a polished sample, carrying out heat treatment, finely grinding and polishing, and etching. The method concretely comprises the steps of: firstly, preparing the sample, and grinding one of the planes of the sample to be smooth; then, putting the sample into a heating furnace, carrying out heat preservation under the condition of the temperature and time parameters to be researched, and quenching after heat preservation; carrying out water milling on the sample, keeping a certain angle between the polished surface and abrasive paper during water milling, guaranteeing that the surface of the sample is provided with a matrix-oxidation zone transition area, polishing, etching by an erosion reagent, cleaning by alcohol and then blowing the product to be dry; and observing the clear primary austenite grain boundary under a microscope. According to the technical scheme of the method, the implementation is simple and convenient; and after the technical scheme is implemented, the material primary austenite grain boundary is not influenced by a matrix metallographic structure simultaneously when being clearly and integrally displayed.

The invention discloses a process of purifying dephosphorization slag to extract vanadium in vanadium pentoxide production, i.e. a technology of purifying the dephosphorization slag to extract vanadium in the vanadium pentoxide production. The process comprises the following steps of: (1) taking the dephosphorization slag; (2) pulping through a water mill: pulping the dephosphorization slag though either a wet ball mill or a pulping machine; (3) heating: heating the solution to 85-95 DEG C through steam and then stirring; (4) filter pressing: carrying out solid-liquid separation; (5) filtrate: pumping the separated solution into a settling tank for settling and then entering a liquid storage tank; (6) vanadium precipitation: regulating the pH value of the solution to 2-2.5 through sulfuric acid, adding ammonia chloride according to an ammonia adding coefficient of 1.1, and heating supernatant through the steam till vanadium concentration is less than 0.08g / l to obtain ammonium polyvanadate; (7) washing and filtering; (8) melting and preparing pieces; and (9) packaging and putting into storage. The process of purifying the dephosphorization slag to extract vanadium in the vanadium pentoxide production solves the problems that a good deal of vanadium resource is lost in process of producing vanadium pentoxide, and the vanadium recovery effect is bad and vanadium can not be effectively recycled in the prior art.

The invention relates to a grinding process for bamboo products, namely bamboo splints, and belongs to a bamboo splints processing method. Cut surface green bamboo chips are subjected to stewing, fiber forming, water milling, bleaching and drying to obtain the bamboo splints. The water milling treatment can effectively remove burrs and stains on the surfaces of the bamboo splints, so that the produced bamboo splints have smooth surfaces without the burrs and do not prick the hand; and the waste materials obtained after the water milling can be directly used for paper making, so that no pollution is caused and the environmental protection is ensured. The processed bamboo splints can be widely used in bamboo products such as bamboo mats, bamboo pillows, bamboo curtains, bamboo carpets, bamboo-splint woven handicraft articles and so on.

The invention discloses a rain collection type modified General Tso water mill. By means of the modified General Tso water mill, through a combined device, automatic grinding is achieved by means of gathered rainwater, wind energy and solar energy, redundant water obtained after drive is guided underground so as to form the sponge ground, and the aim of developing and reutilizing rainwater is achieved. According to the technical scheme, rainwater on a roof is guided into a rain collection pond, the rain collection pond communicates into a rain collection water box, a base, an impeller, a rotating rod, a stone mill and the like which are used for supporting running of the water mill are sequentially arranged below the rain collection water box; rainwater in the rain collection water box directly impacts on the wooden impeller through a water guide pipe with a water flow adjusting valve, the rotating rod is driven to rotate, the stone mill is pushed to achieve grinding, rainwater impacting on the impeller continues to drive a downstream watercart, the water watercart rotates to a water return trough to drain water, rainwater is supplied back to the water collection box to be cyclically utilized, redundant rainwater is collected in a water accumulation pond, and the rainwater infiltrates through a seepage bent pipe to form the sponge ground. Other reserved power transmission rodscan push the water mill through other kinetic energy. An impeller and solar and kinetic energy device is erected above a base of a traditional General Tso water mill, and kinetic energy collected by impeller blades and solar energy collected by a solar photovoltaic plate can serve as power of the water mill through a power conversion device.

The invention discloses a coal ash based wood fiber artificial heat retaining panel and a manufacturing method thereof. The heat retaining panel comprises a raw material, a heat retaining material, and a wood panel. The raw material is formed by the materials in the following parts by weight: 100-120 parts of coal ash, 50-60 parts of wood fiber powders, 120-140 parts of water, 5-15 parts of tackifier, 3-10 parts of crack and permeation resistance agent, 5-10 parts of stabilizer, 20-40 parts of kaolinite, and 10-30 parts of lime putty powders. The heat retaining material is a heat insulation coating and an aerogel felt. The wood panel is a wood plate or a wood veneer. The steps of the manufacturing method comprise mixing and stirring, high-temperature sintering, water mill cutting, and sticking facing, etc. The coal ash is used as a base material to be processed into a door sheet, and the door sheet is added with the wood fiber powders, so as to improve tenacity of a coal ash sintered plate, and enhance plasticity and flintiness, and improve use ratio of coal ash. In a manufacturing process, the heat insulation coating and the material are added, effectively improving heat insulation performance of the door sheet. The manufactured coal ash plate effectively absorbs the heat insulation coating, so the heat insulation coating is fully used.