436results about How to "Improve looseness" patented technology

An orthopedic tool for loosening the connection between orthopedic components. In one embodiment, the orthopedic tool includes a housing and a wedge. The housing has a head, an upper portion, a lower portion, and an opening between the upper and lower portions. The wedge is positioned at least partially between the upper portion and the lower portion of the housing and is actuatable to move toward the head of the housing. When at least a portion of the head of the housing is placed in mating engagement with the junction between two assembled orthopedic components, advancement of the wedge towards the head results in separation of the upper portion and lower portion of the housing. Thus, as the wedge is advanced toward the head, the upper and lower portions of the housing are separated, which results in corresponding separation of the assembled orthopedic components.

The invention discloses an independent tobacco cutting process and independent tobacco cutting equipment based on paper making method regenerated tobacco leaf processing characteristics. The process comprises the following process steps: opening a box, shoving tobacco leaves, loosening, regaining moisture, cutting, drying and mixing. The equipment comprises a box opening machine, a tobacco leaf shoving machine, a high-frequency-vibrating loosening machine, a moisture regaining machine, a cutting machine and a roller cut tobacco drying machine, wherein the mechanisms can be arranged and can operate alone or in combination through the connection by a material conveying and feeding mechanism. The process and the equipment can cut the boxed regenerated tobacco leaves independently according to the processing characteristics of the boxed regenerated tobacco leaves, thereby improving the effective utilization rate of the paper making method regenerated tobacco leaves, effectively retaining fragrance, improving visual quality, and making the prepared regenerated cut tobacco uniform in length and good in looseness so that the cut tobacco can be blended with other cut tobacco uniformly. The process and the equipment have high adaptability; meanwhile, according to the change in the form of supplied materials, 'three-step method' tobacco cutting adopted in the prior art is changed into one-step cutting with the same effect, the production efficiency is improved and the production cost is lowered.

The invention provides a sludge composting method, and relates to a sludge treatment method which comprises the steps of preferable accessory selection, CK21 fungus spraying inoculation, heavy metal passivation and powder granulation, and then three-dimensional composite biological organic fertilizer with organic, inorganic and microbial active constituents is obtained. Mushroom compost and pig manure are used as accessories which are easily obtained and degraded, the stacker fermentation time is short, only one time of fermentation is needed, the C/N ratio can be effectively adjusted, and the water content of the sludge is reduced; and the efficient beneficial bio-fungus community CK21 is adopted. The microbial concentration is high, the secretion ability of the enzyme is strong, organic matters can be quickly decomposed so as to prevent the corruption of the organic matters, no odor exists, sludge is used for CK21 inoculation, fermentation starts fast, and the effect is good; and the product is inoculated with the CK21 fungus secondarily so as to further balance and activate nutrients, and the microbial natural reproduction is utilized to realize the is called flower dipping absorbing of the plants to nutrients. The invention has the advantages of optimizing the composting conditions, shortening the composting time, reducing energy consumption of turning, and reducing the damage of the heavy metal on the ecological environment.

A method and device for the detection of low-level harmful substances in a large volume of fluid comprising using a concentrator system to produce a retentate and analyzing the retantate for the presence of at one harmful substance. The concentrator system performs a method comprising pumping at least 10 liters of fluid from a sample source through a filter While pumping, the concentrator system diverts retentate from the filter into a container. The concentrator system also recirculates at least part of the retentate in the container again through the filter. The concentrator system controls the speed of the pump with a control system thereby maintaining a fluid pressure less than 25 psi during the pumping of the fluid; monitors the quantity of retentate within the container with a control system, and maintains a reduced volume level of retentate and a target volume of retentate.

The invention relates to a pig manure fermented fertilizer and a preparation method thereof, belonging to the field of organic fertilizers. The invention aims to provide a pig manure fermented fertilizer and a preparation method thereof. The preparation method of the pig manure fermented fertilizer comprises the following steps of a, mixing biological bacteria, molasses and water and fermenting for 40-56h to obtain a bacterial fermentation liquid; b, mixing molasses, corns, water and the bacterial fermentation liquid and fermenting to obtain a primary fermentation material; c, after mixing pig manure, calcium superphosphate and the primary fermentation material, adding rice husks or saw dust and stirring to obtain a second fermentation material; d, composting the second fermentation material to ferment; e, continuing to ferment for 36-48h; and f, continuing to ferment for 36-48h to obtain the pig manure fermented fertilizer. Furthermore, the invention discloses a bio-organic fertilizer prepared from the pig manure fermented fertilizer provided by the invention. The pig manure fermented fertilizer is good in loose degree and contains more than 30% of organic matters; and 25-30g of nitrogen, phosphorus and potassium nutrients are contained in every 1kg of pig manure fermented fertilizer.

Methods, apparatus, and kits are described, one method embodiment comprising loading a solids-laden screen into a carriage of a washing enclosure, the solids-laden screen comprising a screen mesh partially obstructed with solids from a well drilling or work-over operation, and spraying a cleaning composition onto first and second sides of the screen while vibrating the screen. Apparatus and kits for practicing the methods are also described. This abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b)

The invention provides a hemp fiber with a fineness of 1,500-4,000 Nm and the strength of 4-10cN/dtex. The hemp fiber has higher fineness and strength and can be used for spinning by using a dry method and preparing various grades of textile products by blending with other fibers. The invention also provides a preparation method of the hemp fiber, comprising the following steps of: chemical degumming, aftertreatment, stamping, oil feeding, softening, oil feeding and humidification, stowing and mechanical opening, wherein the step of chemical degumming specifically comprises the following steps of: adding hydrogen peroxide, alkali metal silicates, urea and a penetrating agent to water and uniformly stirring; then adding hemp peels; heating up, preserving heat and washing by using clear water; adding alkali, the alkali metal silicates, urea and the penetrating agent to water and uniformly stirring; adding oxidized hemps; and heating up, preserving heat and washing by using clear water. The method can prepare hemp fibers with an extremely high fineness and has low environmental pollution.

A paper discharge apparatus that sequentially discharges paper through a discharge outlet, stacks and stores the paper is provided, the apparatus includes: a discharge tray including a fixed tray that is fixedly disposed spaced apart from the discharge outlet, and a swing tray that is disposed between the fixed tray and the discharge outlet and that is axially supported so as to be capable of swinging at or near an end portion of the fixed tray; and a drive control unit that controls an angle of inclination of a surface of the swing tray with respect to a surface of the fixed tray by swinging the swing tray. In this paper discharge apparatus, paper discharged from the discharge outlet is received on the fixed tray and the swing tray of the discharge tray.

The invention relates to the related technical field of tobacco production, and in particular relates to a cut-tobacco drier based on the independent tobacco cutting characteristics of papermaking method reconstituted tobacco and a cut-tobacco drying control method thereof. The cut-tobacco drier comprises a barrel, a moisture discharge rotary net, a cut-tobacco drying heating air system, a humidifying air system and a control system. Through the control method provided by the invention, the traditional cut-tobacco drier is completely suitable for the papermaking method reconstituted tobacco after independent tobacco cutting, the control aim of 12-13% of moisture content at exit is achieved, and the independent tobacco cutting quality and the effective utilization rate of the papermaking method reconstituted tobacco can be effectively improved. The low-intensity processing mode can effectively maintain the physical characteristics and chemical characteristics of the papermaking method reconstituted tobacco after independent tobacco cutting, the sensory characteristic is effectively enhanced, and relatively high friability and relatively low doubling rate are realized; and thus the reconstituted tobacco can be blended with other natural tobacco, and a firm guarantee is provided for the grouping processing of tobacco primary process and flexible processing production new mode.

The invention relates to a preparation method and applications in supported catalysts of a carrier type titanium dioxide ultrafiltration membrane. According to the preparation method, a ceramic membrane is used as the support body, the self-growing phenomenon of titanium dioxide particles at high temperature is utilized, a titanium dioxide ultrafiltration membrane layer with high flux and tortuosity is formed on the surface of the ceramic membrane support body through the interweaving of titanium dioxide nanorods and calcining, thus the tortuosity and loose degree of the membrane layer can be effectively increased; an enough space is provided for supporting catalysts on the basis of ensuring the retention capacity of the original ceramic membrane; and the overall functionalization of the ceramic membrane is realized, namely the ceramic membrane supporting of multiple catalysts is realized and the product can be used in the fields such as photocatalysis, catalytic ozonation, catalytic hydrogen peroxide oxidation and catalytic wet oxidation.

The invention discloses a method for preparing cerium hydroxide. The method is characterized by comprising the following steps: dissolving cerous carbonate of which the purity is greater than 99.99% as a raw material by using nitric acid to obtain cerium nitrate feed liquid; carrying out hydrolysis to remove impurities in the dissolving process, and filtering for at least two times; filtering the obtained filtrate by using a precision filter, and transferring into a storage container to stand for a plurality of days, wherein the content of general non-rare earth impurities of the obtained cerium nitrate feed liquid is smaller than 5ppm; transforming the purified feed liquid into cerium hydroxide by taking ammonium hydroxide as a transforming agent and hydrogen peroxide as an oxidant; soaking and washing by strong alkalinity liquid to remove nitrate; filtering prepared cerium hydroxide; washing a filter cake by overheated secondary water, and pumping; putting the filtered material into an oven, and baking at 90-95 DEG C for a plurality of times, so as to obtain a cerium hydroxide product with over-high purity and ultra-high gross. According to the cerium hydroxide product prepared by the method, the nitrate content is smaller than 500ppm; the rate-earth purity is greater than 99.99%; the content of general non-rare earth impurities is smaller than 10ppm; the Cl<-> content is smaller than 10ppm; the SO4<2-> content is smaller than 10ppm; the oxidation rate is 98-99.9%; the oxide gross is greater than 90%.

Method and kit for producing a dental product The invention relates to a method and a kit for producing a dental product. The invention also relates to a device that allows the method according to the invention to be implemented. According to the invention, a thermoplastic material (4) of said kit is selectively heated through the supply of targeted (directed) energy more strongly than an impression tray (1) and/or an impression material (3).

The invention discloses a transformer winding loose determination system and method based on finite element analysis. The system comprises a data input module, a data storing module, an analysis determination module, a display output module, a signal conversion module and multiple vibration sensors. The data storing module is provided with a winding loose defect database; the multiple vibration sensors are arranged in different positions of the outer surface of a transformer and are used for acquiring and transmitting vibration signals of the positions to the signal conversion module; the signal conversion module receives the vibration signals and converts the signals into feature signals before transmitting to the analysis determination module; the data input module inputs the monitored transformer performance parameters to the analysis determination module; the analysis determination module extracts the matched loose threshold from the winding loose defect database according to the transformer performance parameters, compares with the feature signals and judges whether the transformer winding loose exists or not. By the aid of the method, the problem that since a loose threshold is set according to the existing transformer diagnostic method, the reliability and universality are low is solved.

The invention discloses a blasting method controlling damage of damage rings of a tunnel, which relates to the field of tunnel engineering and is invented for reducing damage to tunnel damage rings. The method includes: drilling blast holes on a driving face according to predesign; and filling the blast holes with explosive and electronic detonators according to the pre-designed explosive quantity; and networking the electronic detonators, and allowing the blast holes to blast according to a preset blasting sequence; wherein the inter-hole differential blasting time interval of easers is 100-300ms, both the inter-hole differential blasting time interval of auxiliary holes and the inter-hole differentia blasting time interval of bottom holes are 10-30ms, and the inter-hole differential blasting time interval of peripheral holes is 0.1-3ms; or the peripheral holes in different groups are subjected to inter-group differential interval blasting after the peripheral holes are grouped, the peripheral holes are in groups of 4-8 holes, and the inter-group differential blasting time interval of the grouped peripheral holes is 3-6ms. The blasting method is applicable to blasting in tunnel engineering.

The present invention is preparation process of spherical nanometer crystal zirconium dioxide powder stabilized with yttrium oxide and belongs to the field of the technology of preparing nanometer zirconium dioxide and specific ceramic, and the zirconium dioxide powder is main material for making structural ceramic. Nanometer crystal zirconium dioxide powder is prepared through hydrothermal decomposition and deposition process and then added with adhesive and dispersant, and the mixture is then spray dried to prepare yttrium doped spherical nanometer crystal zirconium dioxide powder. The present invention features the simple technological process, and the spherical nanometer crystal zirconium dioxide powder has great specific surface area, homogeneously distribution particle size, no coagulation and good dispersivity.

The invention discloses an open trench-concealed conduit combined water discharging and salt reducing method, and belongs to the technical field of saline-alkali soil improvement. The method comprises the following steps of: selecting a field, digging a salt-controlling water discharging concealed conduit trench and a water collection conduit trench, laying a water-resisting layer, burying a salt-controlling water discharging concealed conduit and a water collection conduit, connecting the salt-controlling water discharging concealed conduit and the water collection conduit, backfilling the salt-controlling water discharging concealed conduit trench and the water collection conduit trench, reconditioning mounds, digging an open trench, perforating, applying soil fertility fertilizer, and managing the salt-controlling water discharging concealed conduit and the water collection conduit. By adopting the open trench-concealed conduit combined water discharging and salt reducing method, the water retention, fertility retention and temperature increase can be facilitated, the soluble salt ions can be rapidly leached below a plough layer, the salt ions leached to the soil deep layer are not moved to the surface soil along with the water, so that an effect of reducing the salt content in the surface soil can be realized; and by virtue of the method, the water drainage is facilitated, the leaching efficiency of the salt content in the plough layer is greatly increased, and the salt content in the soil is greatly reduced.

The invention discloses a film-covering and punching planting method for a secondary saline-alkali land in the Yellow River irrigation district and belongs to the technical field of saline-alkali land planting. The method comprises the steps that a land is selected; a salt-reduction isolating layer is paved; a salt-control permeation-increase water collection pipe is embedded; animal rotten feces, saw timber powder and desulphurization gypsum powder are applied on the land surface; surface ploughing and irrigation are conducted to the saline-alkali land; base fertilizers are applied; trapezoid soil heaps and V-shaped grooves are trimmed; a drip irrigation pipe is embedded; punching and application of soil fertility fertilizers are carried out; film covering, sowing and irrigation are carried out; and management of the salt-control permeation-increase water collection pipe, droppers and a reservoir is conducted. According to the invention, the sowing is conducted after the film covering, and a covering film is punched, so that water-conservation, fertilizer-conservation and temperature increase effects are better, and crop yield increase is promoted. In addition, the soil water holding capacity can be enhanced, soil looseness can be increased, and a soil hardening degree can be improved, so that soluble salt ions can be rapidly leached into a plough layer, the salt ions leached into deep soil layers are not easily delivered to the superficial-layer soil with water, salt surface accumulation can be retarded, and the salt content can be reduced.

The invention discloses a method for producing nano calcium carbonate by microwave drying. The method is carried out according to the following steps: (1) preparing Ca(OH)2 raw refined slurry; (2) preparing boiled calcium carbonate slurry; (3) preparing an activated calcium carbonate filter cake; (4) pelletizing; (5) carrying out microwave drying; and (6) crushing and sieving to prepare a nano calcium carbonate product. A device for producing nano calcium carbonate by microwave drying comprises a pelletizer, a feeding hopper, a conveyor belt, a transmission mechanism, a tunnel type microwave drying box, a microwave generator, a discharge hopper and a moisture removal mechanism. The method and the device are adopted to produce nano calcium carbonate, so that time of drying operation in a production process of the nano calcium carbonate can be greatly shortened, the energy consumption is lowered, the agglomeration of the nano calcium carbonate is weakened and the dispersion is improved, and thus, the quality of the nano calcium carbonate is improved; the prepared nano calcium carbonate has the advantages of small grain size, low agglomeration strength, a great specific surface area, small hardness and good dispersion; and moreover, the heating time is short, so that the whiteness of the nano calcium carbonate can be improved.

The invention discloses a reconstituted tobacco shredding device. The device comprises a material guide wheel set, a material limiting device, a parallel cutting disc, a transverse shredding roller cutter and a rack; the material guide wheel set, the material limiting device, the parallel cutting disc and the transverse shredding roller cutter are horizontally sequentially mounted; the material limiting device is positioned on a central line between an upper roller and a lower roller of the material guide wheel set; the whole device is arranged on the rack. According to the device, the reconstituted tobacco is directly shredded into long shreds through the parallel cutting disc and then shredded into short shreds through the transverse shredding roller cutter; the obtained reconstituted shreds are uniform in length and width and can be directly mixed and used according to the design ratio of a cigarette formula. With the adoption of the device, the reconstituted tobacco shredding process is simplified, the breaking in shredding of the reconstituted tobacco is reduced, and therefore, the utilization rate of the reconstituted tobacco is increased.

The invention relates to a single shred making process suitable for a paper-making process reconstituted tobacco manufacturing plant. The single shred making process includes the following steps: (1) storage, (2) shred cutting, (3) feeding, (4) temporary storage, (5) temperature and humidity increasing, (6) shred drying, (7) purification and (8) blending. Single shred making is achieved for processing characteristics of paper-making process reconstituted tobacco leaves, the process is concise, the energy consumption is low, dust in the production environment is small, the peculiar smells are fewer, the width and the length of reconstituted tobacco shreds are even, the reconstituted tobacco shreds are good in friability and high in effective using rate, fragrance of the reconstituted tobacco leaves is effectively kept, and the sensory quality is improved.

The invention provides a screw driver assistor with an angle-square shaped sleeve (1). A first conical gear (3) and a second conical gear (2) in gear transmission connection are arranged along a sleeve cavity; the first conical gear (3) extends to a connecting lug boss (6) with a hexagonal section; the external end of the second conical gear (2) is provided with a connecting lug boss (7) with a hexagonal section as well; axles of the two gears are respectively provided with a first bushing (4) and a second bushing (9). The bottom of a handle of a screw driver (11) is sheathed at one end of the connecting lug boss (6), a screw driver head (12) sheathed on the connecting lug boss (7) is driven through transferring rotating force by gear teeth, and the rotating direction of the screw driver (11) is changed from vertical to horizontal, or from horizontal to vertical, thereby realizing diverting use of the screw driver. Therefore, the performance of the screw driver can be expanded and reinforced. The assistor has the advantages of simple structure, low cost and high efficiency.