46results about How to "Guarantee long-term stability" patented technology

The invention discloses a durability test method for a belt weigher. The durability test method is characterized in that type evaluation of durability of the belt weigher is conducted through high harsh-degree material experiments by simulating severe working conditions of the field in a laboratory. Compared with other known testing schemes, the durability test method has the advantages of fitting characteristics of a dynamic weighing machine and being close to field actual conditions of users, capable of being quantized and easy to reappear and just and fair as type evaluation and the like. Worldwide problems of type evaluation of the durability of the belt weigher are solved.

The invention discloses a design method and a structure for preventing settlement-deformation damage of a soft-rock subgrade of a road. The design method comprises the steps of (A) testing the uniaxial saturated ultimate compressive strength; (B) judging and sorting by selecting soft rocks; (C) filling the bottom part of an embankment with a layer of sand gravels; (D) filling the subgrade part with the soft-rock fillers in a layering manner, and finally paving a layer of composite geomembrane with two fabrics and one membrane; (E) after filling the soft rocks every time, filling a layer of sand gravels; and (F) reducing the distance of sandwich fillers for the soft rocks easy to humidify and disintegrate and paving a geogrid to carry out reinforcement on embankment slopes. The structure is characterized in that the bottom part of the embankment is filled with one layer of sand gravels, one layer of composite geomembrane with the two fabrics and one membrane is paved on the sand gravel, the subgrade part is filled with the soft rocks in sequence in a layering manner, finally one layer of composite geomembrane with two fabrics and one membrane is paved, the geogrid is adopted at the embankment slopes, and qualified fillers of a roadbed are paved on the top-layer composite geomembrane with two fabrics and one membrane. The design method disclosed by the invention has the advantages that the implementation is easy, the stability is improved, the effect of preventing the settlement-deformation damage of the soft-rock subgrade of the road is obvious and the cost is low.

The invention discloses a raw material composition of a cellulose and red alga polysaccharide plant empty capsule. The raw material composition of the cellulose and red alga polysaccharide plant empty capsule comprises the following raw materials in parts by weight: 77.5-98.5 parts of component A, 1.5-22.5 parts of red alga polysaccharide and 0.5-12.5 parts of alcohol, wherein the component A is a cellulose derivative or resin. The invention also discloses the cellulose and red alga polysaccharide plant empty capsule prepared from the raw material composition and a preparation method for the cellulose and red alga polysaccharide plant empty capsule. The plant empty capsule does not deform or crisp in an environment of high temperature, high humidity or cold, is low in moisture content and high in stability, and can be conveniently stored for a long time. Moreover, the requirements on the storage condition are low. Meanwhile, the plant empty capsule is stable in chemical property and has no cross-linking reaction or Maillard reaction or condensation reaction. Various physicochemical indexes of the plant empty capsule, such as disintegration time limit, completely accord with the specifications of the Chinese pharmacopoeia or national standard, and therefore, all defects and potential safety hazards of a gelatin capsule are completely eliminated. The industrial production of the cellulose and red alga polysaccharide plant empty capsule can be realized.

The invention discloses a magnetization-membrane filtering device, which relates to the field of water purification treatment and can be used for drinking water treatment and high-quality industrial water treatment. The magnetization-membrane filtering device structurally comprises a magnetization unit, a membrane filtering unit, a water inflow / circulating pump, a matched pipeline and a valve, the interior of the magnetization unit comprises a magnetization unit shell, a flow-guiding internal sleeve, an external sleeve, a fixed permanent magnet, a water inlet, a water outlet and a circulating water inlet, and a magnetic field structure of water flow is formed by the two-layer sleeves and the fixed permanent magnet jointly; and the membrane filtering unit comprises a shell, an internal fixed permanent magnet, a water inlet, a water outlet and a sewage draining outlet. In the magnetization-membrane filtering device, the advantages of two water treatment methods, including magnetization water treatment and membrane filtering treatment, are combined, by means of a permanent magnet device of the magnetization unit, raw water has an activation function after being magnetized, meanwhile, the ultrafiltration / microfiltration membrane filtering unit is adopted, so that the particulate matters and pathogenic bacteria and the like in the raw water can be effectively removed, and the sanitation safety of water quality can be effectively guaranteed.

The invention relates to an assembly type artificial sacral prosthesis. The assembly type artificial sacral prosthesis comprises a prosthesis main body, a first sacral combination body and a second sacral combination body; the first sacral combination body and the second sacral combination body are connected with the prosthesis main body in a knocking and inserting manner; the first sacral combination body or the second sacral combination body comprises a connecting body and a bone setting body; each bone setting body is provided with a pore structure; and the first sacral combination body and / or the second sacral combination body is prepared by using a 3D printing technology. The assembly type artificial sacral prosthesis has the advantages that when the sacral bone is rebuilt, the assembly type artificial sacral prosthesis can be accurately matched with different excision faces of sacral tumors due to personalized customization, stress conduction recovery and stability of a lumbosacral portion are good, the length is conveniently adjusted so that the assembly type artificial sacral prosthesis is fixedly connected with the lumbar vertebra, the lumbar vertebra is prevented from hanging in the air and falling off, the assembly type artificial sacral prosthesis can be completely fused with the tumor excision faces, seamless joint is achieved, and long-term stability and recovery are good.

The invention relates to a photovoltaic cell working temperature and power generation power joint estimation method, which is used for controlling the operation of a power grid system, and comprises the following steps: S1, constructing a historical database which comprises photovoltaic cell data and corresponding environmental factor data; s2, constructing a photovoltaic cell working temperatureand power generation power joint estimation model; s3, obtaining initial parameters of the joint estimation model; s4, performing model parameter optimization on the joint estimation model based on the historical database and the initial parameters; and S5, carrying out prediction estimation on the working temperature and the generated power of the photovoltaic cell by using the joint estimation model obtained in the step S4. Compared with the prior art, the method comprehensively considers the working temperature and the power generation power, can accurately predict the working temperature and the power generation power in the working process of the photovoltaic cell, has the advantages of high model precision, low model complexity and the like, and can effectively ensure the safe, stable and efficient operation of a power system.

The invention relates to a sulfo-diene nickel complex as well as a preparation method and applications thereof and belongs to the field of organic synthesis. According to the adopted technical scheme, the general formula of the sulfo-diene nickel complex is shown in the specification, wherein the R is straight chain or branched chain alkyl of C6-C20 or straight chain or branched chain alkoxy of C6-C20. The preparation method of the complex comprises the following steps: dissolving a compound with the structural formula as shown in the specification in an organic solvent, carrying out acylation reaction with oxalyl chloride (C2O2Cl2) to obtain an o-diketone compound and continuing reacting under the action of P2S5 and nickel chloride to obtain the sulfo-diene nickel complex. The preparation method disclosed by the invention is simple and mild in condition; the prepared complex is good in heat stability and difficult in separating and has very high light absorption coefficient in a near-infrared region; the light filter prepared by adopting the complex is very good in effect on near-infrared laser protection and is particularly suitable for 1064nm laser protection; in the meantime, the complex has the double characteristics of visibility and laser protection compatible in a visible light region.

The invention relates to a liquid floated gyroscope, in particular to a nondestructive testing method for bubbles in the liquid floated gyroscope, which is used for overcoming the defects that the existing method for testing the bubbles in the liquid floated gyroscope is complicated in operation method and high in data analysis difficulty, and products with bubble hidden dangers cannot be completely removed. According to the nondestructive testing method for the internal bubbles of the liquid-floated gyroscope, high-sensitivity detection of the internal bubbles of the liquid-floated gyroscope is realized by utilizing the volume compensation component height change of the liquid-floated gyroscope caused by the expansion of the internal bubbles of the liquid-floated gyroscope in a vacuum environment, and the nondestructive testing method is simple to operate, easy to implement, suitable for various types of liquid-floated gyroscopes and wide in application range.

The invention discloses a double-layer hollow fiber permeating and vaporizing film and a preparation method. The double-layer hollow fiber permeating and vaporizing film is characterized in that by controlling the formulas of a film casting liquid of an outer layer and a film casting liquid of an inner layer, the prepared double-layer hollow fiber permeating and vaporizing film is of a particularskin layer structure; a selective separating layer for hollow fiber permeating and vaporizing is arranged between an outer protecting layer and an inner support layer. The double-layer hollow fiber permeating and vaporizing film has the advantages that the outer protecting layer is used for protecting the selective separating layer, so that the separating efficiency and stability of the hollow fiber permeating and vaporizing film are improved; the hollow fiber permeating and vaporizing film is prepared by a one-step double-layer extruding technology, and the preparation technology is simple.

The invention discloses a wet detoxification and bioremediation combined method for chromium slag and chromium-contaminated soil, wherein the method comprises the steps: pretreating waste slag containing hexavalent chromium or chromium-contaminated soil, removing large-particle materials, and conveying to a slurry stirring tank to obtain chromium-containing slurry; conveying the slurry to a wet detoxification acidification reduction tank, adding concentrated sulfuric acid, organic acid, hydroxy carboxylate and ferrous sulfate, carrying out acidification reduction reaction, dissolving out hexavalent chromium, and reducing hexavalent chromium into trivalent chromium; and then enabling the slurry to enter a reduction and stabilization tank, adding a reduction and stabilization agent for further reduction and stabilization reaction, and fully reacting hexavalent chromium to generate a stable trivalent chromium complex; then carrying out solid-liquid separation on the slurry, wherein filtrate flows into a wet detoxification reaction tank for recycling; and further carrying out biological reduction stabilizing treatment on dewatered cement cake, so as to ensure the long-term stability of the treated material.

The invention discloses a method for ladder-structured filling and re-mining of remnant coal pillar groups in remnant mining areas. According to the method, filling molds are constructed and mounted on the basis that the remnant coal pillar groups in the remnant mining areas and the pillar mining area distribution condition are explored and made clear, the remnant coal pillar groups in the remnant mining areas are sequentially subjected to side protection in the manner of double-side filling beside each pillar, and a mechanized short-wall re-mining working face is arranged, and the remnant coal pillar groups in the remnant mining areas are recovered safely. With the adoption of the method, the mining rate of coal resources can be increased, the economic benefits of enterprises can be increased, besides, dynamic disasters such as instant instability, domino instability and the like occurring to pillar type filling bodies in the mining areas under the coupling function of multiple factors can be avoided, and accordingly, long-term stability of the pillar type filling bodies in the mining areas after re-mining of remnant coal is guaranteed.

The invention discloses a device and method for strengthening a granulation process of aerobic sludge. The device comprises a water inlet unit, a reactor, an aeration unit and a water outlet unit, wherein the water inlet unit comprises a water inlet tank and a water inlet peristaltic pump; a water outlet pipe of the water inlet peristaltic pump is connected with a water inlet at the bottom of thereactor; an inert titanium cathode is arranged on an inner wall of the reactor; an active iron anode is arranged at the center of the reactor; tail ends of the inert titanium cathode and the active iron anode are connected with a direct-current voltage-stabilization power supply through lead wires; the aeration unit comprises an air pump, a rotor flow meter and a sand filtering aeration head whichare connected in sequence; the sand filtering aeration head is arranged at the bottom of the reactor; the water outlet unit comprises a water outlet tank and a water outlet solenoid valve connected with the water outlet tank; the water outlet solenoid valve is connected with a water outlet formed in the middle of the reactor through a water outlet pipe. According to the device disclosed by the invention, rapid granulation of the aerobic sludge and long-period stable operation of an aerobic granular sludge system can be realized at the same time.

The invention discloses a step type structure filling method for second mining of coal pillars of remnant mining areas. According to the method, on the basis of exploring and ascertaining the remaining coal pillars in the remnant mining areas and pillar mining area distribution situations, step type filling moulds are built and installed; the remaining coal pillars of the remnant mining areas are sequentially side-supported by adoption of a pillar side double-side layered filling method; in addition, a short-wall mechanical second mining working face is arranged; and accordingly, the remaining coal pillars of the remnant mining areas are safely recovered. According to the step type structure filling method for second mining of the coal pillars of the remnant mining areas, the recovery ratio of the coal resources can be increased, the economic benefits can be improved for an enterprise, and dynamic disasters including instantaneous instability, domino instability and the like of pillar type filling bodies in mining fields under the multi-factor coupling effect can also be avoided, so that the long-term stability of the pillar type filling bodies of the mining fields after second mining of the remnant coal is guaranteed.

The invention provides a power consumption control device of intelligent manufacturing robots for automatic storage logistics. The power consumption control device is used for improving power supply reliability and long-term work stability of logistics robots under severe conditions, and comprises a power supply module and a power consumption control module for monitoring the quality of output power of the power supply module. The stability and reliability of power supply circuits of the robots in a long-time continuous working state are strongly guaranteed while switching reliability and long-term stability even under the severe conditions are improved.

The invention provides a reinforced and toughened road rapid repair material and a preparation method thereof. The reinforced and toughened road rapid repair material is prepared from the following raw materials: nonamethylene diamine, urea, polyvinyl alcohol, dipentaerythritol, para-aramid fibers and a defoaming agent. The method comprises the following steps: step 1, optimizing processing characteristics of polyvinyl alcohol; step 2, preparing modified para-aramid fibers; step 3, preparing nonamethylene diamine containing the modified para-aramid fibers; and step 4, preparing composite modified polyurea. The repair material disclosed by the invention can greatly shorten the construction operation time and quickly repair local damage of a pavement; meanwhile, the material has high strength and flexibility, long-term stability of combination of the material and an original pavement can be guaranteed, and secondary damage in the using process is prevented.

The invention discloses a pre-disintegration soft rock embankment grouting anti-seepage lifting structure and a construction method thereof.The grouting anti-seepage lifting structure comprises a single graded broken stone layer, a soft rock filler layer and a clay layer, the soft rock filler layer is laid above the single graded broken stone layer in a layered mode, and a lifting layer is laid in the soft rock filler layer of a certain layer below a roadbed working area; the lifting layer comprises a plurality of second longitudinal reserved pouring pipe grooves and transverse reserved pouring pipe grooves, the transverse reserved pouring pipe grooves and the second longitudinal reserved pouring pipe grooves are perpendicular to each other and are communicated with each other, and pouring pipes are embedded in the transverse reserved pouring pipe grooves and the second longitudinal reserved pouring pipe grooves. All the pouring pipes in the lifting layer are wrapped in the double-layer geomembrane; the clay layer is laid on the top of the uppermost soft rock filler layer to reach the pavement elevation. The non-uniform settlement deformation of the roadbed is prevented, the overall performance of the soft rock filler embankment is improved, the construction is simple and rapid, and the engineering construction maintenance cost is reduced.

The invention discloses a design method and a structure for preventing settlement-deformation damage of a soft-rock subgrade of a road. The design method comprises the steps of (A) testing the uniaxial saturated ultimate compressive strength; (B) judging and sorting by selecting soft rocks; (C) filling the bottom part of an embankment with a layer of sand gravels; (D) filling the subgrade part with the soft-rock fillers in a layering manner, and finally paving a layer of composite geomembrane with two fabrics and one membrane; (E) after filling the soft rocks every time, filling a layer of sand gravels; and (F) reducing the distance of sandwich fillers for the soft rocks easy to humidify and disintegrate and paving a geogrid to carry out reinforcement on embankment slopes. The structure is characterized in that the bottom part of the embankment is filled with one layer of sand gravels, one layer of composite geomembrane with the two fabrics and one membrane is paved on the sand gravel, the subgrade part is filled with the soft rocks in sequence in a layering manner, finally one layer of composite geomembrane with two fabrics and one membrane is paved, the geogrid is adopted at the embankment slopes, and qualified fillers of a roadbed are paved on the top-layer composite geomembrane with two fabrics and one membrane. The design method disclosed by the invention has the advantages that the implementation is easy, the stability is improved, the effect of preventing the settlement-deformation damage of the soft-rock subgrade of the road is obvious and the cost is low.

The invention provides a high-strength durable rapid repair material for roads and a preparation method of the material. The material is prepared from the following raw materials: polyaspartic ester,diisocyanate, ultrahigh-molecular-weight polyethylene, low-molecular-weight polyethylene, heterocyclic aramid fibers, a crosslinking agent, a silane coupling agent and a defoaming agent. The preparation method comprises the following steps: step 1, optimizing processing characteristics of ultrahigh-molecular-weight polyethylene; step 2, preparing active polyethylene composite powder; step 3, preparing polyaspartic ester-polyethylene composite powder; step 4, preparing modified heterocyclic aramid fibers; and step 5, preparing composite modified polyurea. The repairing material provided by theinvention can greatly shorten the construction operation time and quickly repair local damages of a road surface; and meanwhile, the material has higher strength and flexibility, can ensure long-termstability of combination of the material with an original road surface, and can prevent secondary damage in a using process.

The invention provides a method for recovering vegetation in a rock-soil residue field, comprising the following steps: 1) removing unstable rocks and sundries on the residue stack and maintaining a certain degree of smoothness; 2) anchoring thread steel arranged in quincunx into the residue stack and pouring anchoring agents for fixation; 3) preparing a compound of vegetable fibers and bentonite; 4) paving the compound obtained in the step 3) on the surface of the residue stack and compacting the compound; 5) spreading and hanging galvanized wire meshes along the grade surface and binding the meshes with tie wires and fixing the meshes on the thread steel; 6) preparing seed matrix mixtures; 7) spraying the seed matrix mixtures; and 8) spreading and hanging non-woven fabrics and watering and managing the fabrics. The method features reasonable cost, simple construction technology, stable structure of the vegetation in the rock-soil residue field during recovery and good water retention, and can effectively recover the vegetation. The method is mainly used for recovering the vegetation in the rock-soil residue field.