43results about How to "Change the physical structure" patented technology

The invention belongs to the technical field relevant to tool abrasion detection and discloses a milling tool abrasion monitoring method based on data. The method comprises the following steps that (1) a three-phase output current signal of a spindle driving motor of a numerically-controlled machine tool during working of a milling tool is collected; (2) the collected three-phase output current signal is cleaned; (3) a characteristic coefficient representing milling tool abrasion is extracted from the cleaned three-phase output current signal through a compressed sensing method and the key point theory; and (4) a characteristic signal index is computed online according to the three-phase output current signal, collected in real time, of the spindle driving motor when a certain milling tool works normally, and thus milling tool abrasion is subjected to real-time online monitoring. Through the provided milling tool abrasion monitoring method based on the data, the cost is lowered, and real-time monitoring of milling tool abrasion is achieved.

The invention discloses a hazard-free treatment technology for electrolytic manganese residues. The technology comprises the following steps: washing the manganese residues in a high-pressure manner by using slurry water, and basically enabling the manganese residues to form slurry liquid; injecting the manganese residue slurry liquid into a filter chamber of a membrane press filter to be filtered to obtain a filter cake, and performing two-section acid leaching on the filter cake under a prepressing state; keeping the prepressing state, and injecting multi-stage washing liquid into the filter chamber to be washed in a multi-section manner; injecting alkali liquid of which the pH is 9 to 10.5 into the filter chamber to solidify manganese ions, and inflating the air into a filter liquid passage in a stage manner during the solidifying treatment; performing the high-pressure press filtering on substances in the filter chamber, and after the solidifying treatment is finished, discharging the residues. Through the adoption of the technology provided by the invention, the soluble manganese ions in the electrolytic manganese residues can be further extracted, and at the same time, the manganese ions in the filter cake are converted into the insoluble manganese to be deposited, so that the remained manganese ions in the waste residues cannot be permeated into the ground surface or the underground water to pollute the underground water resources in the stacking process.

The invention relates to a method for degrading landscaping garbage to produce an organic fertilizer by utilizing high-efficiency mixed bacteria, which comprises the steps: (1) organic matters of the landscaping garbage are sterilized after being crushed; (2) nutrition substrates, lignin and cellulose degradation bacteria are added to the solid phase; (3) the mixture is irradiated for 20 minutes every other 8 hours by adopting low-frequency ultrasonic wave until the fourth to seventh day of the fermentation cultivation after the fermentation cultivation for 24 to 26h; and (4) the sterilization processing is carried out to obtain the finished product organic fertilizer after the thoroughly decomposition for 1 to 3 days. The method has the advantages of simple required equipment, simple andconvenient process, and safety disposal realization of the landscaping garbage. Meanwhile, the method produces the organic fertilizer capable of promoting the growth of crops, solves the difficultiesof difficult degradation and difficult recycle of the current landscaping garbage, and has extremely profound social significance and economic value.

The invention discloses a bundle-type catalyst for oxidation of methanol. The bundle-type catalyst comprises a stainless steel corrugated screen, an active catalyst and a flat screen. The active catalyst is uniformly distributed on the flat screen. The stainless steel corrugated screen is tiled and stacked and coats the active catalyst, then the edge of the stainless steel corrugated screen is enclosed, the stainless steel corrugated screen and the active catalyst are rolled to form the bundle-type catalyst through one end as an axle core. The physical structure of the catalyst is changed so that the distribution form and flowing way of the reaction materials are greatly improved, product quality is improved, impurities are reduced, material consumption and energy consumption are further reduced and solid foundation is laid for methanol oxidation industrial large-scale development and production.

The invention discloses a vegetation fiber composite earth and its process for preparing. The said composite earth is prepared by adopting the following materials according to a proportion by weight: 10-30 parts of fabric serum, 5-15 parts of plant ash or charcoal, 50-70 parts of soil, 0.8-1.2 parts of active calcium, 0.5-1 parts of water-loss reducer and 5-20 parts of water. The soil pore space of the composite earth obtained by this invention is filled with fabric serum, plant ash and moisture and the structure is more compact. The surface of the composite earth can produce shell because of the existence of the water, and the inside also contains water and fertilizer which is suitable for the growth of the seed, which can guarantee the growth of the vegetation and can prevent the dispersion of the rain, therefore, the invention has advantages that the thickness of the growth soil is proper, the water-retention effectiveness is good, and the product is of stable integrality, can prevent scouring and solarization, can reduce maintenance, and is no need of precipitation. The product can be used in vegetation greening on mountain rockslope, artificial slope and desert oralkali land.

An automatic login method for multi-maindomain server based on IC card is characterized by that the user can use IC card and PIN cipher to log in. Its advantages are no change of physical structure of network, no addition to network load, independency of application, and low cost of program transplantation.

The invention relates to a soil structure stabilizer and a preparation method thereof, and belongs to the technical field of soil conditioning. The soil structure stabilizer comprises the following components in percentage by weight: 30%-50% of an adhesive, 30%-50% of a curing agent and 5%-30% of an ion exchanger. The soil structure stabilizer provided by the invention can change the soil structure of an earth-rock slope, improves the properties of soil mechanical strength, water stability, scouring resistance, wind erosion resistance and the like, and has little influence on the growth of vegetation.

The invention relates to the technical field of soil improvement, in particular to a method for improving hardened tobacco planting soil. The method includes the steps of firstly, planting tobacco; secondly, planting paddy rice; thirdly, applying materials and performing smoldering, to be more specific, furrowing the field after paddy rice harvesting, sequentially filling paddy rice straw, soil particles, paddy rice straw, the mixture of tobacco straw and rice hulls, soil particles, rice hulls and soil particles into furrows in a layered manner, and performing smoldering after the materials are applied, wherein the thickness of each layer is different; fourthly, finishing the soil. By the method, soil bulk density can be lowered evidently, soil total porosity and ventilation porosity can be increased, soil organic matter and total nitrogen content can be increased, the activity of soil microorganisms can be increased, the hardening condition of the tobacco planting soil can be improved, and soil permeability can be evidently increased.

The invention discloses a soil improvement method for tillage-free three-dimensional material embedding. The method includes the following steps that under the condition that a soil tillage layer is not turned over, high-pressure airflow is injected to soil needing to be modified to perform spray explosion so that the soil can be deep loosened and a soil water partition layer can be broken; while the high-pressure airflow is injected, soil modifying materials can be conveyed into the soil within the spray explosion range; while the degraded soil problems about soil erosion, desertification, gleying and like are solved, deep placement is performed on the soil by injecting the high-pressure airflow for jetting and spray explosion under the condition the soil is not turned over, soil porosity is increased, the air injection amount is increased, the volume weight of degraded soil is lowered, the soil can be loose and breathable, rainwater penetration speed and rainwater penetration amount are enhanced, the water-holding capacity of the soil is improved, soil moisture preservation is facilitated, erosion is reduced, more rainwater can be absorbed, generation of a runoff can be delayed, the strength of the runoff is weakened, scouring of the surface runoff on the soil is relieved, and water and soil loss is reduced.

The invention provides a surface treatment method for sclerotic dentin. The surface treatment method comprises the following steps: before bonding and filling of composite resin, adopting phosphate gel with the concentration of 35% to pretreat the surface of the sclerotic dentin for 30 seconds; using H2O to wash for 30 seconds; after drying, adopting NaClO solution with the concentration of 5% or10% to pretreat the surface of the sclerotic dentin for 60 seconds, using H2O to wash for 30 seconds, and after drying, finishing pretreatment for the surface of the sclerotic dentin. The surface treatment method provided by the invention has the advantages that by combined action of sodium hypochlorite of certain concentration and phosphoric acid of certain concentration, the physical structure of the surface of the sclerotic dentin is changed, and the surface roughness is increased, so that the bonding strength of the composite resin for the sclerotic dentin is enhanced.

The invention discloses a piston mechanism and a spherical tooth hob with a water jet assisted rock breaking function. The piston mechanism comprises a piston cylinder, a piston and an elastic piece, the piston cylinder is of a hollow tubular structure, a sealing partition plate is arranged in the piston cylinder, and the interior of the piston cylinder is vertically divided into a movable cavity and a pressure cavity through the sealing partition plate; the piston penetrates through the sealing partition plate and is movably arranged in the piston cylinder, a limiting block is arranged at the end, protruding out of the pressure cavity, of the piston, the limiting block seals an opening of the pressure cavity in the natural state, and a piston probe is arranged at the position, located in the movable cavity, of the piston; and the elastic piece is arranged below the piston and abuts against the limiting block, and the piston probe always protrudes out of the opening of the movable cavity in the natural state under the action of the elastic piece. By means of the piston mechanism and the spherical tooth hob, water jet can be ejected from the peripheries of arranged spherical teeth, starting and stopping of the water jet are controlled through a pure mechanical structure, the reliability is high, abrasion of the spherical tooth hob can be reduced, and the rock breaking efficiency is improved.