32results about How to "Avoid floor space" patented technology

The invention belongs to the technical field of preparation of materials and particularly relates to a method for preparing graphene from expanded graphite. Microcrystalline graphite serving as a raw material is subjected to first chemical intercalation treatment, first high-temperature expansion treatment, second intercalation treatment and second high-temperature expansion treatment sequentially, second expanded microcrystalline graphite is obtained and subjected to ultrasonic treatment twice, and a peeling material is obtained and subjected to press filtering, separation and washing, and graphene is obtained. According to the method, the microcrystalline graphite is taken as the raw material, the production technology process is short, and the method is low in cost, produces no sulfur and can be used for mass production of graphene materials.

A system and method for automatically detecting cracks in components produced by a stamping process. A substantially uniform backlighting of the component can be produced, even when direct backlighting is partially blocked by structure used to support the component during inspection. One or more image detectors simultaneously image the component from a top side while it is backlit. One or more images of the current component are then compared to a master image of the component. Light passing through or visible through cracks in the component will cause the system to see a difference between the current image(s) of the component and the master image(s), thereby indicating a crack(s). A user is automatically notified upon detection of a crack.

The invention relates to an expanded graphite material, and discloses expanded graphite and a preparation method thereof. The traditional high-temperature expansion method is combined with a graphite expansion furnace; the optimal expansion temperature is used; the product stability can be effectively improved through controlling the raw materials and the process parameters at the expansion temperature, so that the large-scale preparation of stable expanded graphite with controllable expansion times is realized; the expansion times is 200 to 300; the bore diameter is 30 to 100nm; the carbon content is stable. The temperature region is formed by defining the temperature of a feeding opening and a discharging opening; the expansion time is controlled by setting the feeding speed and the wind speed; then, the separation and collection are realized through wind speed; the large-scale preparation is realized; the inert gas protection is not needed; the graphite high-temperature oxidation caused by too high expansion temperature can be prevented, so that the expansion volume of the graphite is reduced.

The invention discloses a rock-aluminum composite board unit type curtain wall which comprises an aluminum board; a rock board is fixed on the upper surface of the aluminum board; internal and external corner connector connecting pieces connected in series are fixed to the periphery of the aluminum board; and the rock-aluminum composite board unit type curtain wall has high strength, good rigidity and light weight, can be installed on an outer wall through keels for decoration in a way of being hidden at the inside, cannot fall off and has extremely high safety. The technical problem that exterior wall decoration cannot be performed in a tiling mode after a certain height is reached on an existing building is solved. The production process comprises the steps of material preparation, angle opening, hole punching, hole carving, bending forming, welding, acid pickling, chromizing, rock plate pasting and assembling to form the unit type curtain wall. According to the rock plate pasting process, automatic pasting is performed through pasting equipment, time and labor are saved, the automation degree is high, meanwhile, the precision is high, the yield is high, and the technical problem that manual pressing is needed in an existing pasting process is solved.

The invention provides special underground direct-driven discharging and extracting equipment for coal bed gas, and belongs to the technical field of mining. The equipment comprises a sleeve, a motor, a motor protector, a righting bearing component, a screw pump, a special connector, a special axial force supporting mechanism and an oil pipe, wherein the motor is arranged on the bottom part of a pitshaft; a motor output shaft is connected with an input end of a rotor of the screw pump through the motor protector and the righting bearing component; an output end of the rotor of the screw pump is connected with the special axial force supporting mechanism; the special connector consists of an internal shaft and an outer casing; a stator of the screw pump and the special axial force supporting mechanism are connected by the special connector; the oil pipe is connected between a special pithead and the special axial force supporting mechanism; the sleeve is embedded on the inner wall of the pitshaft; all constitutive elements are sheathed in the sleeve. By applying the equipment, a gap at the aspect of discharging and extracting techniques for coal bed gas highly-deviated wells and multi-branch horizontal wells is filled; compared with a traditional discharging and extracting way, the equipment realizes the multiplied increase of gas production; meanwhile, the floor area of the discharging and extracting equipment is decreased.

The invention relates to the field of graphene production and discloses a graphene production system which comprises a graphite exfoliating furnace, a secondary ultrasonic device and a filtering device, wherein the graphite exfoliating furnace is connected with the secondary ultrasonic device; the secondary ultrasonic device is connected with the filtering device; intercalation graphite is adopted as a raw material; the intercalation graphite is exfoliated in sequence by using the graphite exfoliating furnace to prepare exfoliated graphite, the exfoliated graphite is further conveyed through the secondary ultrasonic device and the filtering device, and thus graphene is finally prepared. With the combination of the exfoliating furnace and the secondary ultrasonic device, high-multiplied exfoliated graphite is prepared by using the exfoliating furnace, the exfoliated graphite as the raw material is subjected to pre-exfoliation and ultrasonic exfoliation, circulation reaction is implemented, and together with secondary ultrasonic exfoliation, the exfoliation efficiency can be greatly improved, and thus large-scale, high-efficiency and low-cost production of graphene is achieved.

The invention relates to a multi-stage fluidization tower. A main shaft is arranged along the axis of a pre-drying tower, a first pre-drying layer, a first interlayer air chamber, a second pre-dryinglayer and a second interlayer air chamber are sequentially arranged in an inner cavity of a cylinder body of the pre-drying tower from top to bottom, rake type stirring fins are arranged above circular sieve plates of the first pre-drying layer and the second pre-drying layer, and the rake type stirring fins are fixed on the main shaft; air inlets are formed in the side walls of the first interlayer air chamber and the second interlayer air chamber, and air outlets are formed in the top center of the first pre-drying layer and an upper cylinder wall of the second pre-drying layer; a feeding chute and a first pre-drying overflow port are connected to the side wall of the first pre-drying layer, a scattering device is arranged at an outlet of the feeding chute, and the first pre-drying overflow port is connected with a feeding port in the cylinder wall of the second pre-drying layer through a pre-drying chute; and a second pre-drying overflow port is further formed in the cylinder wall of the second pre-drying layer and is in butt joint with a feeding port of the horizontal multi-stage fluidized bed. The drying machine does not need material returning, first-in first-out of materialsis achieved, and the discharging quality is high.

The invention provides an aerial track capable of being used in a mine. The aerial track comprises a mine frame arranged in the mine and a tramcar chassis, and a plurality of track frames are arrangedin the mine frame. The track frames comprise horizontal rods, vertical rods are arranged at two ends of the horizontal rods, the horizontal rods are further provided with a connecting rod connected with the mine frame, and a track is arranged above the horizontal rods in a penetrating mode. The tramcar chassis is provided with a track transmission device, and the track transmission device is connected with the track in a power mode. When the aerial track is in use, the track can be directly placed on the track frames, so that a tramcar can be suspended and transported on the track, and the problem that a previous tramcar track occupies ground space is solved; the bottom of the tramcar is kept away from the wet ground, the problems of easy corrosion, corrosion and sticky bottom are prevented, and the service life of the tramcar is prolonged; and a gravity ball is arranged in a carriage to keep the carriage balanced to increase the stability of the track, and the problem of easy derailment of a track connection device is solved.

The invention provides a pulse rectifier, which belongs to the technical field of pulse equipment, and comprises a preceding-stage power supply and a power module which are arranged in a split manner,the preceding-stage power supply and the power module are suitable for being arranged side by side in a frame, and the bottom end of the frame is suitable for being supported above electroplating orelectrolysis equipment; according to the pulse rectifier disclosed by the invention, the preceding-stage power supply and the power module are arranged in a split manner, so that the preceding-stage power supply and the power module can be arranged in the frame side by side, and the frame can be supported above electroplating or electrolysis equipment due to reduction of the overall height of thepower supply, thereby preventing the arrangement of the power supply from occupying the ground space and saving the factory land cost.

The invention discloses a full-automatic corn ear high-flux seed test instrument. According to the device, high-precision, high-flux and full-automatic corn ear phenotypic information acquisition anddigital integrated data storage are realized. The corn ears placed on a transparent tray are shot from the upper surface and the lower surface by utilizing an industrial camera, so that the phenotypiccharacters of the corn ears are obtained; the ear tray is rotated to a specific station by using the rotating mechanism to execute corresponding actions, so that the purpose of full-automatic corn ear test is achieved; and in combination with an image processing technology, fifteen character parameters related to corn ears and grains are extracted from ear pictures. The invention provides a high-throughput, full-automatic and high-precision corn ear test scheme, which effectively helps corn researchers to quickly and accurately obtain corn yield traits, so that corn test does not become the bottleneck of corn research any more.

The invention discloses a double-side clamp positioning machining device comprising a three-layer rail. A table facet rail is arranged on the uppermost portion of the three-layer rail; a first machining device and a second machining device are arranged on the table facet rail; a bearing frame is arranged between the first machining device and the second machining device; the first machining deviceand the second machining device are each provided with a base and a vertical rod; and telescopic rods are arranged on the vertical rods. In the three-layer rail, a plurality of rotary position clamping devices are arranged in the upper-layer rail body; convex blocks and position-clamping blocks are arranged on the rotary position clamping devices; the position-clamping blocks and grooves in the bottoms of the bases are matched; and the rotary position clamping devices are arranged on rotating shafts and controlled by rotating motors to rotate. The middle-layer rail body is provided with elastic clamping devices; the elastic clamping devices comprise controllers, and the two sides of the controllers are connected with clamping blocks through springs; and storage grooves are formed in the bottom of the lower-layer rail body. The double-side clamp positioning machining device has the following advantages that remote unmanned control can be achieved, multiple procedures are integrated into a set of equipment, the occupied area is small, and the production efficiency is improved.

The invention discloses a special suspension bracket for a rubber pipe. The special suspension bracket comprises a suspension rod, the upper end of the suspension rod is connected with a lifting ring,more than two screw holes are linearly distributed on the suspension rod, studs are arranged in the screw holes, a suspension rope is hung between two adjacent studs on the suspension rod, a windingdisc assembly used for winding the rubber pipe is connected to the lower portion of the suspension rope and comprises two blocking discs and a winding barrel arranged between the two blocking discs, hanging rings are connected to the outer sides of the blocking discs, the hanging rings are connected with hooks, and the hooks are connected to the suspension rope. By means of the special suspensionbracket, the rubber pipe can be stored in order, and overlarge ground area is not occupied.

The invention discloses an in-situ upgrading reconstruction method for a CASS pool. The in-situ upgrading reconstruction method comprises the following steps: reconstructing a pretreatment pool of theCASS pool into an anaerobic pool; dismantling an original structure in a main reaction tank of the CASS pool, arranging a partition wall in the main reaction tank to make the main reaction tank isolated and reconstructed into a denitrification tank and a biochemical sedimentation tank through the partition wall, installing a circulation clarifier in the biochemical sedimentation tank, installingan aeration disc below a sewage return opening of the circulation clarifier, forming a backflow channel in one side in the biochemical sedimentation tank, mounting a first reflux pump at the position,close to the denitrification tank, of a reflux channel to make sludge in the reflux channel guided into a denitrification tank, and arranging a water distribution channel on the other side in the biochemical sedimentation tank. The water distribution channel and the reflux channel are oppositely arranged, so that the water distribution channel communicates with the denitrification tank and the biochemical sedimentation tank and is used for guiding denitrification sewage in the denitrification tank into the biochemical sedimentation tank. Namely, according to the technical scheme, on the premise that the occupied area is not additionally increased, it is guaranteed that the total nitrogen content of the effluent reaches the emission standard smaller than 15 mg/L.