69results about How to "Removable" patented technology

The invention relates to a thiol-aldehyde group cross-linked hydrogel material, a preparation method and applications thereof. The preparation method comprises: dissolving a component A thiol-containing polymer derivative in a biocompatible medium to obtain a solution A; dissolving a component B aldehyde group-containing polymer derivative in a biocompatible medium to obtain a solution B; and mixing with the solution A and the solution B to obtain the hydrogel, wherein the hydrogel has plasticity at the initial stage of cross-linking, can form a removable hydrogel system at the later stage ofcross-linking, and can form an interpenetrating network hydrogel system with enhanced mechanical property, a component C and/or a component D can be added to the hydrogel precursor solution, the component C is a double bond-containing substance or an amino-containing substance or a substance containing a double bond and amino, and the component D is a tissue repairing beneficial ingredient. The invention further provides a kit for preparing the hydrogel, applications of the hydrogel in tissue engineering and regenerative medicine, 3D cell culture, 3D printing, and applications of the hydrogelas cell carriers, protein carriers or drug carriers.

A machining device based on a non-Newtonian fluid shear thickening mechanism polishing method comprises a workbench, a polishing tool system, an abrasive fluid circulation device and a computer control module, wherein the polishing tool system is installed on a portal frame of the workbench, an inlet of the abrasive fluid circulation device is communicated with an abrasive backflow opening in the workbench, and the workbench, the polishing tool system and the abrasive fluid circulation device are respectively connected with the computer control module. The machining device has the advantages that the application range is wide, the size of machined workpieces is not limited, the structure of the device is simple, the device is controlled easily, a computer controls the operation track of the device, the polishing process of non-Newtonian fluid abrasive fluid and the surfaces of the workpieces can be controlled effectively, a non-Newtonian fluid abrasive fluid circulation system is adopted, and the functions of removing abrasive dust, purifying, recycling, transporting and storing the abrasive fluid, and adjusting performance are achieved.

A mechanism and a timepiece module independent of the bottom plate of a movement, of a simple and compact design. The timepiece mechanism includes a control stem (3) mounted in a pivoting manner and movable between at least two axial positions, a control pinion (11; 13) mounted so as to rotate with the control stem (3), and at least one actuating member (15, 24; 30) configured to engage with the control pinion (11; 13) when the control stem is occupying one of the axial positions. The control pinion (11; 13) is also coupled translationally to the control stem (3) when the latter moves from one to the other of the two positions. The module includes a case (2) containing the mechanism.

The invention discloses a real-time monitoring device for water-inrush and mud-burst disasters in tunnels and underground engineering and an operation method. The real-time monitoring device comprises a model box, a ground stress simulation system, a water injection device, a monitoring system and a control system, wherein the model box is used for containing a water-body-containing similar material so as to simulate a rock body; the ground stress simulation system is used for applying a certain pressure to the water-body-containing similar material in a system of the model box and simulating a ground stress; the water injection device is used for injecting a certain amount of water into the water-body-containing similar material, a pressure controller and a flow control valve are mounted on the water injection device, are connected with a serve controller and are used for controlling simulated osmotic pressure at any time; the monitoring system comprises a sensor and a muddy water amount collecting device, the sensor is arranged in the model box, the muddy water amount collecting device is communicated to the inside of the model box, and the monitoring system is used for monitoring and collecting information before and after the occurrence of the water-inrush disasters in real time; and the control system is used for controlling the water injection device and simultaneously processing data collected by an information monitoring system.

The invention discloses a block fracture rock mass excavation disturbance and digging machine shield stress monitoring model test system and method. The method comprises the following steps: a fractured rock mass is prefabricated by adopting a mold, and moreover, a cutter is used for carrying out cutting to produce needed fractures; a hydraulic loading system adopts a model test bed as a counterforce structure to apply pressure on the fractured rock mass and simulate real stress; a water pressure simulation system adds water into the fractured rock mass and realizes the influence of underground water on the destabilization process of the fractured rock mass; a digging excavation system pushes jacks under the control of a motor to control a cutterhead to carry out rock breaking and diggingon a part to be excavated; a monitoring system monitors the change of a stress field of the fractured rock mass in the process of digging excavation; and moreover, monitoring elements are arranged onthe surface of a digging machine shield to monitor the stress of the shield in the process of digging.

The invention discloses a test system and method of a bearing monitoring model under impact of a slope rockfall protection structure. The system comprises a test stand, a slope body simulation unit, adata collection unit, a protection structure and a rockfall movement mechanism, the slope body simulation unit is arranged in the upper end of the test stand, and comprises slope bodies with different slope angles, the rockfall movement mechanism which can drive a rock to move among the different slope bodies is arranged in the top ends of the slope bodies, the protection structure is arranged inthe bottom ends of the slope bodies, and the data collection unit is arranged in the protection structure. Thus, rockfall impact on the protection structure of the preset slope body can be monitored.

An integrated lightweight filter-material water treatment filter tank is characterized by comprising at least a water treatment unit. The water treatment unit comprises a tank. The tank is composed of a clear water area, a filtering area and a water inlet area which are communicated with each other through water-flow from the top to the bottom. Adjacent two areas of the above three areas are isolated through a filter board respectively. The filter board is provided with several water channels used for water flowing. The water inlet area has a water inlet used for receiving sewage to be filtrated. The filtering area holds several lightweight elastic filter material particles which have lower density than water. Particle size of the lightweight elastic filter material particles is greater than width of the water channels. After water-flowing, each lightweight elastic filter material particle forms a filter layer, and there is a gap between the filter layer and the lower filter board. The top of the clear water area is an overflow surface of clear water. The filter tank has advantages of good filtering effect, low backwashing requirement, high reliability, low cost, low operation cost, less land occupation and convenience in operation management.

The invention discloses a fabric drying dust removal apparatus convenient to carry and adjustable in height. The fabric drying dust removal apparatus comprises a base and a movable lifting apparatus,wherein the movable lifting apparatus is positioned on the bottom of the base, the base is in a concave shape, the upper surface of the base is provided with a rectangular through groove, two side walls are provided with sliding grooves, outer surfaces of two side walls of the base are provided with a sliding air cylinder, a drying apparatus is arranged in the rectangular through groove by virtueof the sliding grooves, two ends of the drying apparatus are connected onto a sliding seat in the sliding air cylinder, a first adsorption apparatus is arranged between the two sliding seats and positioned on the upper surfaces of the sliding seats, the upper surface of the rectangular through groove of the base is also provided with a second adsorption apparatus, the upper surfaces of the front end and the rear end of the base are respectively provided with a fixed plate, and a pair of compressing air cylinders is arranged below the fixed plate and positioned in the rectangular through groove. The fabric drying dust removal apparatus has the advantages that a fabric can be rapidly dried, the surface of the creased fabric can be flatted when in drying, and an effect for removing dust and fluff can be achieved.

The invention relates to a ladle covering flux for preventing temperature drop of the molten steel after treatment with a converter, which is characterized in that the ladle covering flux mainly consists of the following components in percentage by weight: 91-99% of lime and 1-9% of calcium carbide. In the use method of the ladle covering flux, 1-8 Kg of the ladle covering flux is added to every ton of molten steel, and the granularity is 0-100 mm. In the use method of the ladle covering flux, 1-8 Kg of the ladle covering flux is added to every ton of molten steel, and the granularity is 0-80mm; the argon can blown after producing steel and in the process of transferring; and the upper limit of the argon flow is reached when the surface of the steel liquid does not turn. The ladle covering flux and use method provided by the invention have the advantages that: air isolation and heat preservation are ensured; the temperature drop in the process of transferring the molten steel is reduced through the exothermic reaction of calcium carbide in the covering flux and the oxygen in the molten steel, the electrode consumption is reduced, and the environment is protected; and as the calcium carbide further reacts with the oxygen and sulfur in the steel, the covering flux also has the effects of deoxidation and desulfurization.

The invention discloses novel metal anti-rust wax which is prepared from the following components in parts by weight: paraffin, oxidized paraffin, epoxy resin, sodium stearate, span, polyglyceryl fatty acid ester, acrylic acid, stearic acid, sodium sulfite, polymethyl triethoxysilane, polyvinyl alcohol and a 15% sodium hydroxide solution. A manufacturing method for the metal anti-rust wax is simple in technical process, low in manufacturing cost and suitable for popularization on a large scale. The metal anti-rust wax disclosed by the invention has good flowability, salt fog resistance and resistance to heat and humidity. The property of the metal anti-rust wax is more stable by magnetic stirring. Not only can the service life of the metal anti-rust wax be prolonged, but also the service life of a metal product protected can be prolonged. The metal anti-rust wax disclosed by the invention has normal temperature sprayability, can be quickly dried, can be used for forming uniform and compact hard film protective layer which is good in toughness, has good surface smoothness and excellent heat resistance, and has removability.

The invention discloses an integrated biological powdered activated carbon adsorption and precipitation device and an application method thereof. The method comprises the following steps: allowing sewage to be treated to enter an adsorption area, throwing powdered activated powder in the adsorption area, adsorbing organic matters, performing the aerobic aeration for the adsorption area, facilitating the growth of bacteria on the surface of the powdered activated powder, facilitating the nitration, allowing the water discharged from the adsorption area to enter a refluxing area, throwing a carbon source in the refluxing area, facilitating the denitrification, then allowing the sewage to enter an ascending area, when the sewage passes through a three-phase separator, scattering the denitrification nitrogen in the sewage into the air by virtue of a release pipe, allowing the sewage to enter a floating bed precipitation area, separating carbon from the sewage to enter a sludge hopper, and allowing the sewage to be discharged out of the device by virtue of a water outlet overflow weir. By adopting the integrated biological powder activated carbon adsorption and precipitation device and the application method thereof, the organic matters which are difficult to biochemically degrade in the waste water are removed with relatively low operation expense; and meanwhile, by virtue of biological enhancement on the powdered activated carbon carrier, a function for removing ammonium nitrogen and total nitrogen can be realized.

The invention discloses a multistage resistance-increasing anchor rod and a construction method. The multistage resistance-increasing anchor rod comprises a rod body, wherein a rod body check block is fixed at the front part of the rod body; a jacking rod is connected to the rear part of the rod body; a plurality of self-expandable devices with hollow structures sleeve a rod body between the rod body check block and the jacking rod; the jacking rod can push the self-expandable devices to move; the front part of each self-expandable device is of a conical structure; a hollow connecting rod is arranged at the middle of each self-expandable device; a plurality of wedge sheets are arranged at the rear part of each self-expandable device along the circumferential direction of the self-expandable device; the wedge plates of the adjacent self-expandable devices are connected with the conical structures; a fixing device is arranged at the tail of the rod body, has removability, can be used for changing resistance increasing series and facilitates adopting multiple resistance increasing series settings for engineering practice; the stress is simply applied; the rear ends of the self-expandable devices are expanded by screwing bolts; the wedge plates in a shape like a Chinese character mi at the rear ends of the self-expandable devices adopt the design that the front parts are thick and the rear parts are thin, so the penetration of conical ends is facilitated; meanwhile, the stretched wedge plates can be conveniently inserted into surrounding rock or the insides of surrounding soil bodies, so that the frictional resistance between the rod body and the soil bodies is increased.

The invention relates to a driving integrated magnetic adsorption wheel type device. The driving integrated magnetic adsorption wheel type device is characterized by comprising a transmission shaft, a harmonic reducer, a wheel body rubber coating shell, a motor, a transmission support, a belt wheel shaft, a magnet and a wheel body end cover, wherein the wheel body rubber coating shell and the wheel body end cover are matched to form a closed space, the transmission shaft is installed on the center axis of the wheel body rubber coating shell, one end of the transmission shaft extends out of the wheel body rubber coating shell and the wheel body end cover and is connected with a car body, and the other end of the transmission shaft is connected with a rigid wheel through a flange plate; the motor and the magnet are arranged at the position, located at the two sides of the harmonic reducer, in the space of the wheel body rubber coating shell, one side of the magnet is fixed to a first copper sleeve through a second magnetic support, and the other side of the magnet is fixed to the transmission shaft through a first magnetic support; one end of the motor is fixed to the transmission shaft through the transmission support, the belt wheel shaft is fixed to the portion, between the transmission shaft and the motor, of the transmission support, an output shaft of the motor, the belt wheel shaft and the transmission shaft are parallel and transmit power in the mode of a synchronous belt.

The invention relates to an environmentally-friendly oil mist environment test box. The test box comprises a clean air supply module, an oil mist generation module, a temperature control module, a sample aged test reaction module and an oil mist recovery module. The test box can control the temperature (0-150 DEG C), can control the oil mist concentration (0.05-20g/m<3>) and can carry out oil mist recovery. The test box is advantageous in that the land occupation area is small, the structure is simple, operation is convenient, the test box is clean and environmentally friendly, the precision is high, simultaneous control of temperature and an oil mist concentration can be achieved, and the test box is suitable for application in scientific research and engineering test research.

The invention discloses a radiography imaging detector scintillation crystal array which comprises scintillation crystal bars, a first barium sulfate coating, a second barium sulfate coating and an aluminum foil paper tape. A number of scintillation crystal bars form the scintillation crystal array through the first barium sulfate coating. The second barium sulfate coating and the aluminum foil paper tape respectively coat the outer surface of the scintillation crystal array. According to the radiography imaging detector scintillation crystal array and a manufacture method thereof, which are provided by the invention, the manufactured scintillation crystal array can acquire high light output, low light crosstalk, great position resolution and a great light isolation effect; and the radiography imaging detector scintillation crystal array and the manufacture method thereof have the advantages of assembly repeatability, low cost and good light collection and imaging effects.

The invention discloses a two-dimensional model testing system and method for the instability process and mechanism of block-fractured rock mass. The system comprises a test bed, a hydraulic loading system and an image acquisition module. The test bed is of a closed structure and provides counterforce support for the hydraulic loading system. The hydraulic loading system is arranged on the inner side of the test bed, applies pressure to the prefabricated rock mass, and provides ground stress in different environments. The image acquisition module is arranged at the front end of the test bed and records the instability process, caused by the fact that the hydraulic loading system applies force to the rock mass, of rock blocks. A hydraulic jack is installed in the steel bed, a sheet bar acts on the surface of the formed simulated rock mass, the applying force of the jack is adjusted through a numerical control system, the requirements of surrounding rock ground stress in different environments are simulated, and the instability process of the rock blocks can be completely recorded through a high-definition image pickup system.

The invention discloses a long-life variable residence, which includes a large space structure, wherein, the large space structure fully adopts variable space inside thereof; and the variable space is designed and constructed by a user. The invention also discloses a construction method for the long-life variable residence, which comprises the following steps: 1) the construction of the large space structure is conducted by a construction unit; and 2) design and construction for the variable space by the user include the design of house types and concrete layout; each pipeline is arranged comprehensively and connected with standpipes among public equipments; a movable overhead floor is installed; the functional separation is achieved through inner movable partition boards according to the design house types; an integral kitchen and an integral washroom are installed, so as to achieve the connection among the integral kitchen, the integral washroom and each pipeline indoors. The large space structure in the invention fully adopts variable space inside thereof, the movable overhead floor layer has the detachable performance, and the pipeline capable of being freely mounted is arranged between the movable overhead floor layer and a lower floorboard, thereby breaking through limitation of difficult reconstruction for the house types of traditional residence.

The present invention relates to a cellulose acetate/iron and aluminium oxide composite film material, its preparation method and application. Said composite film material is formed from 85%-98% of cellulose acetate and 2%-5% of iron/aluminium compound, its thickness is 30-40 micrometers, and it is transparent and has reddish brown colour. Said invention also provides the concrete steps of its preparation method, and said film can be used for determining biological effective state phosphorus in the water and high-gathered trace phosphorus in the water.

The invention relates to a multilayer assembly-type house system capable of growing. The multilayer assembly-type house system comprises an irregular space truss and an assembly-type house embedded inthe irregular space truss; the irregular space truss is formed by connecting circular pipe steel rod members through spherical node bolts, high-strength bolts are arranged at two ends of the circularpipe steel rod member, a corresponding screwed hole is arranged at the spherical node, a basic unit of the irregular space truss is tetrakaidecahedron, a bottom and an end face are in a regular triangle shape, a plane of the assembly-type house arranged at middle is in a regular hexagon shape, through combination of multiple basic units, growth with horizontal and vertical directions can be formed, and the assembly-type house is composed of a modularization ground panel, a modularization wall panel, and a modularization roof panel; and the assembly-type house can be embedded in different positions of different floors of the irregular space truss. The assembly-type house is subjected to compliance to flexible growth of a truss structure, can be increased and reduced according to the position replacing with usage requirements, and can realize repeatable dismounting and allopatric reconstruction.

The invention belongs to the technical field of mechanical transmission, and particularly relates to a split planet carrier assembly facilitating positioning of a planet wheel shaft. The assembly comprises a main planet carrier, an auxiliary planet carrier, a planet wheel, the planet wheel shaft, a needle bearing, a bearing spacer ring, an anti-wear pad and positioning steel balls. In order to ensure that an oil passage hole on the planet wheel shaft is aligned with an oil passage hole on the auxiliary planet carrier so that lubricating oil can smoothly enter an inner hole of the planet wheelshaft and provide lubrication for the needle bearing of the planet wheel, it must be ensured that the planet wheel shaft does not rotate circumferentially or move axially in the working process. According to the split planet carrier assembly facilitating positioning of the planet wheel shaft, the steel ball positioning type is adopted, the steel balls are arranged in the planet wheel shaft and themain planet carrier, and are matched with a cylindrical groove on the planet wheel shaft and a semi-cylindrical groove on the main planet carrier respectively, so that the planet wheel shaft can be positioned, the structure is simple and compact, the assembly and the repeated disassembly are easy, and the steel ball positioning type has higher reliability compared with the modes of fixing screw positioning, end face mortise punching and the like.

The invention provides a corrosion inhibition pretreatment filming agent. The corrosion inhibition pretreatment filming agent is composed of the following matters including, by mass, 20-30% of molybdate, 10-15% of phosphate, 2-5% of organic phosphate, 3-5% of a deoxidant, 1-3% of a non-ionic surface active agent and 42-64% of water. The corrosion inhibition pretreatment filming agent has a good deoxidizing effect, the deoxidizing ratio is larger than 90%, and the influence of oxygen dissolving on film forming is restrained. The corrosion inhibition pretreatment filming agent has an oil contamination and rust removing effect, and the influence of oil contamination and rust on the corrosion inhibition pretreatment filming process can be well prevented, so that a formed film is more compact and firmer and capable of well restraining occurring of metal rusting. After pretreatment filming is conducted, discharging is not needed, production operation can be directly conducted, and potential environment polluting risks do not exist.

The invention discloses a low-frequency vibration assisted cut-in type electrolytic turning machining method and an implementation device, and belongs to the technical field of electrolytic machining.The method is characterized in that a rotary workpiece rotates and vibrates in the low-frequency radial direction at the same time relative to an inner liquid spraying tool, electrolyte updating of amachining area can be promoted, the material removal rate is increased, and the machining roundness is improved; a liquid sealing plate and a liquid sealing cavity are tightly attached to form a closed flow field space following the inner liquid spraying tool, electrolyte leakage of a non-machining part of the inner liquid spraying tool can be reduced, sufficient supply of electrolyte flow in a machining area is guaranteed, and the machining stability is improved; and the cut-in type electrolytic turning machining process is divided into radial deep cutting machining and circumferential precise forming machining, and the cut-in type electrolytic turning material removal rate and machining quality are both considered. The implementation device comprises a liquid sealing device, the inner liquid spraying tool, the rotary workpiece, a vibrating device and a rotating device. The method and the implementation device have important significance in increasing the material removal rate of therotary workpiece and improving the machining stability and the machining quality of the rotary workpiece.

The invention provides a self-service cabinet and a control method thereof. The self-service cabinet comprises a cabinet body; an odor removal device which is arranged in the cabinet body, and the odor removal device is configured to remove odor emitted by articles stored in the cabinet body; a circulating air duct which comprises an air inlet and an air outlet which are communicated with the space in the cabinet body, and the odor removal device is arranged on the air outlet; and a refrigerating device is arranged in the circulating air duct and is configured to cool air in the circulating air duct. The self-service cabinet disclosed by the invention has the functions of removing peculiar smell, preserving freshness and preserving heat, can remove the peculiar smell emitted by articles stored in the self-picking cabinet, avoids smell cross infection of the articles in the cabinet, refrigerates and preserves fresh fruits and vegetables, ensures the freshness of the fresh fruits and vegetables, heats and preserves hot foods, ensures the eating taste, and improves the use experience of the self-service cabinet. Influence on article quality.

The invention relates to the field of corrugated pipes, in particular to a double-wall corrugated pipe. The double-wall corrugated pipe comprises a pipe body, pipe casings, a first sleeve, a first connection plate, a second sleeve and a second connection plate, wherein the pipe body is formed by an inner pipe and an outer pipe. Two sleeves which can be butted against each other are arranged at twoends of a traditional corrugated pipe separately, so that splicing is achieved by using two connection plates; and meanwhile, the two sleeves have airtightness and disassembly and assembly performance, so that the double-wall corrugated pipe is convenient to disassemble and assemble and convenient to replace, maintain and clean, the condition that the corrugated pipe is more durable is ensured and the operation performance is improved. The condition that the transverse plane of the whole corrugated pipe has higher compression resistance is ensured and the damage from corrosive liquid infection can be prevented through arranging a compressive layer between an outer pipe and an inner pipe and arranging an anti-corrosion layer on an outer wall of the outer pipe; meanwhile, the condition thatheat energy, produced by penetrating components, to an optical fiber can be removed as soon as possible is ensured through arranging a spiral cooling pipe with a refrigerant inside the pipe, therebyreducing the effect of high temperature on the optical fiber; and furthermore, the pipe casings which are set in a rectangular form are convenient to stack and not easy to roll.