99results about How to "Flexible structure adjustment" patented technology

The invention relates to a catalytic cracking method for producing low-carbon olefins and light aromatic hydrocarbons. According to the catalytic cracking method, a heavy raw material and a first catalytic cracking catalyst are subjected to a contact reaction in a first reactor; a lightweight raw material rich in saturated hydrocarbons, a lightweight raw material rich in olefins and a second catalytic cracking catalyst are subjected to a contact reaction in a second reactor and a third reactor; all the reaction oil-gas and the spent catalysts are subjected to gas-solid separation; the reactionoil-gas is further separated to obtain a product containing light-carbon olefins and light aromatic hydrocarbons; and the spent catalysts are subjected to steam stripping, the steam stripped catalysts enter a catalyst regenerator, charring regeneration is performed, and the regenerated catalyst returns to the reactor so as to be recycled, wherein the catalytic cracking catalyst comprises, by weight, 15-65% of natural minerals, 10-60% of an oxide, and 25-75% of a Y-type molecular sieve and a phosphorus-containing IMF structure molecular sieve. With the method of the present invention, the yield of low-carbon olefins is high, and the yield of light aromatic hydrocarbons is high.

The invention relates to a novel electromechanical dust removal device. The novel electromechanical dust removal device comprises a support, a base and a box body, wherein an air inlet and an exhaust fan are arranged at the bottom of the left side of the box body, an air outlet is formed in the top of the right side of the box body, a first separating plate and a second separating plate are arranged in the box body, separating plate through holes are formed in the first separating plate and the second separating plate, a first filter screen and a second filter screen are respectively arranged at the right sides of the first separating plate and the second separating plate, a top wall through hole is formed in the box body top wall, a first vertical bar is embedded and inserted in the top wall through hole, the bottom end of the first vertical bar is connected with a brush roller, a pressing disc is arranged at the top end of the first vertical bar, a spiral spring is arranged between the pressing disc and the box body top wall, a spraying head is arranged at the top end of the interior of the box body arranged between the first separating plate and the second separating plate, a water collecting tank is arranged below the spraying head, a movable seat is arranged at the left of the base, a second vertical bar is arranged on the movable seat, a dust removal cover is arranged on the second vertical bar, and the dust removal cover is connected with the air inlet by virtue of a ventilation hose. By adopting the structure, the novel electromechanical dust removal device provided by the invention has the advantages that flexible structural regulation can be carried out according to dust removal demand, and the dust removal efficiency and the effect are also improved.

The invention provides an electromagnetic radiation emission real-time measurement system for a high-speed train and relates to the technical field of the wireless electric signal and electromagnetic radiation emission measurement and the interference source positioning. The system comprises a vehicle-mounted measurement subsystem, a ground measurement subsystem, a vehicle-mounted vehicle positioning subsystem and a vehicle ground wireless transmission subsystem, wherein the vehicle-mounted measurement subsystem is used for carrying out real-time statistical parameter measurement on the electromagnetic interference inside a high-speed train vehicle by a multi-channel measurement receiver, extracting and classifying the electromagnetic interference with different characteristics and positioning source equipment emitting the electromagnetic interference inside the vehicle by the mode identification; the ground measurement subsystem is used for measuring real-time electromagnetic radiation emission signals by the multi-channel measurement receiver and filtering interference signals in the real-time electromagnetic radiation emission signals, which are from the outside of the high-speed train by utilizing blind signals; the vehicle-mounted vehicle positioning subsystem is used for acquiring real-time position and speed information of the high-speed train vehicle by utilizing a GPS (Global Positioning System) cooperative positioning technology; and the vehicle ground wireless transmission subsystem is used for implementing the time and space synchronization between the vehicle-mounted measurement subsystem and the ground measurement subsystem.

The invention provides a rolling bearing fault diagnosis method based on an enhanced lightweight multi-scale CNN. The method comprises the steps of: firstly carrying out multi-dimensional feature extraction on original vibration signals through a built CNN model; then inputting the original vibration signals into a lightweight multi-scale feature learning network to extract multi-scale features; carrying out selective enhancement on the learned multi-scale features by utilizing a discriminative fault feature enhancement mechanism (DFRM) so as to enhance fault features and weaken general features; fusing the enhanced multi-scale features; repeating the above steps for several times, mapping and inputting finally obtained high-level abstract features into a classifier for training; and finally performing fault identification on a to-be-detected sample according to the trained CNN model, thereby realizing fault diagnosis of a rolling bearing.; According to the method, the defect that a traditional CNN algorithm is insufficient in discriminative fault feature extraction capacity under the conditions of complex working conditions and strong noise interference is overcome, and the lightweight requirement of the industrial Internet of Things for a deep learning model is met.

The invention discloses a feather color automatic sexing hen mating strain and a hen mating strain four-strain-three-purpose mating using method, and belongs to the technical field of poultry breed production. According to the hen mating strain, a dwarf hen strain with the white eggshell and the yellow appearance feather color serves as a male parent, a normal brown laying hen strain with the white appearance feather color and the wing tips, the tail, the shoulders and the neck with the black feather color serves as a female parent, a pink shell soil specie laying hen mating strain is obtained through hybridization, the appearance feather color of a cock is mainly white, the feather color of the hen is jute feather, and automatic sexing can be carried out according to the feather colors. According to the using method, the white eggshell hen strain, the brown shell hen strain, the middle-speed yellow feather hen strain and the slow-speed yellow feather hen strain are used for breed production, a pink shell soil specie laying hen, a middle-speed type broiler hen and a low-speed type broiler hen are produced, organic fusion of the three kinds of hens is achieved, the high-quality hen four-strain-three-purpose breed production is achieved, the product diversification is achieved, the product structure can be flexibly adjusted according conditions, the risk resisting capacity is strengthened, and the economic benefit is guaranteed.

The invention discloses a capsule-type electret generator and a power supply device. The capsule-type electret generator comprises a capsule-type closed structure and an electret vibrator, wherein thecapsule-type closed structure comprises an insulating shell, and electrodes arranged on the two sides of the insulating shell or a single electrode and an insulating part which are arranged on the two sides of the insulating shell respectively, and the capsule-type closed structure has an inner space; the electret vibrator is located in the inner space of the capsule-type closed structure and canmove between the electrodes or between the single electrode and the insulating part. The capsule-type electret generator is a single-electrode or double-electrode generator; compared with a traditional electret generator, the capsule-type electret generator can effectively reduce the loss of electric charges in an electret and prolong the service life of the electret; besides, the capsule-type electret generator is wide in working temperature range and environmental adaptation range, does not need repeated charging and is a clean power supply device; the energy source is wide, which is conductive to promotion, and thus the capsule-type electret generator has great application potential and commercial value.

The invention discloses an interactive display screen. The interactive display screen comprises a printed circuit board, a first light-emitting unit, and a control unit; the first light-emitting unit is used for providing a display image; the control unit is formed on the printed circuit board and is coupled with the first light-emitting unit to control the first light-emitting unit; the interactive display screen also comprises a second light-emitting unit, an optical sensing unit, and a processing unit; the second light-emitting unit is used for providing detection light; the optical sensing unit is used for receiving optical parameter variation of the detection light which is initiated through touch to acquire touch data; and the processing unit is coupled with the optical sensing unit to determine a touch position by using the touch data and send the touch position to the control unit. The invention also discloses an interactive projection screen. The gap of touch screen technology in the application field can be filled.

The invention relates to a novel logistics shelf. The novel logistics shelf comprises a base and universal wheels. A supporting plate is arranged above the base. A plurality of bottom telescopic rods and a plurality of bottom spiral springs are connected between the supporting plate and the base. The base is further provided with a limiting block. A left vertical plate and a right vertical plate are arranged at the left end and the right end of the top of the supporting plate correspondingly. The right side plane of the left vertical plate and the left side plane of the right vertical plate are uniformly provided with a plurality of left strip-shaped grooves and a plurality of right strip-shaped grooves from top to bottom correspondingly. A plurality of storage mechanisms are arranged between the left vertical plate and the right vertical plate. Each storage mechanism comprises a partition plate, a left inserting plate inserted in the corresponding left strip-shaped groove, and a right inserting plate inserted in the corresponding right strip-shaped groove. A left telescopic rod is connected between each partition plate and the corresponding left inserting plate. A right telescopic rod is connected between each partition plate and the corresponding right inserting plate. The left telescopic rods and the right telescopic rods are further externally sleeved with left spiral springs and right spiral springs. By means of the structure, flexible structure adjustment can be conducted according to the storage requirements, and meanwhile the novel logistics shelf also has the good shock absorption and buffering performance.

The invention discloses a combined separation process of a pressurized two-product and pressurized three-product dense medium cyclone. The combined separation process comprises the following steps: firstly, desliming washed raw coal in advance to obtain oversize raw coal and undersize slime water; feeding the undersize slime water into a slime water treatment system; feeding the oversize raw coalinto a primary separation system of a first-section pressurized two-product cyclone; separating to obtain a low-ash clean coal and medium gangue mixture; and feeding the medium gangue mixture into a secondary pressurized three-product dense medium cyclone after medium removal, and separating to obtain high-ash clean coal, medium coal and gangue. According to the combined separation process, the dense medium coal is separated into high-ash clean coal and medium coal products again by utilizing the advantages of high separation precision and flexible product structure adjustment of the pressurized three-product cyclone, so that a high-level and high-benefit production system and process taking the pressurized two-product and pressurized three-product dense medium cyclone as main washing equipment are formed, and the investment cost of medium coal re-washing equipment is saved. The combined separation process is particularly suitable for the situation that the medium coal contains part ofhigh-ash clean coal and the clean coal resource is wasted under the condition that the clean coal production index of a coal preparation plant is relatively low.

The invention discloses an anti-seismic combined wall with multiple protective structures. By arrangement of a base which is capable of improving integral stability and firmness of the combined wall, a certain anti-seismic protective effect of the combined wall can be achieved; by an integral mounting frame which enables layered arrangement of wall blocks, the wall blocks form the whole combined wall after being mounted integrally to realize basic functions of the wall, and heights of vertical frames can be set according to requirements so as to realize control of the height of the combined wall; each wall block is available for independent assembly and disassembly to make it convenient for adjustment and replacement, and the wall blocks are assembled through respective rail grooves and fixed by respective clamping parts, so that high independence is realized; adjacent wall blocks are in mutual restriction after the whole wall is formed, and the marginal wall blocks are in mutual restriction with the vertical frames, so that integral stability is realized; each single wall block can be replaced singly when being damaged, so that low cost is realized, and the service life of the combined wall is guaranteed since other wall blocks are unaffected by the damaged state of the single wall block. Therefore, the combined wall is high in firmness and flexible in structural adjustment, and the wall blocks can be assembled and disassembly independently to meet different utilization requirements.

The invention relates to a chemical fiber tensioning mechanism. The chemical fiber tensioning mechanism comprises a feeding wheel installed on a feeding wheel seat and a discharging wheel installed on a discharging wheel seat, the discharging wheel and the feeding wheel are located in a same vertical plane, the discharging wheel is located below the ramp of the feeding wheel, the feeding wheel seat comprises an arc-shaped hole seat, a rotating shaft, a rotating rod and a sliding block, wherein the rotating shaft is arranged on the arc-shaped hole seat, a circular-arc strip-shaped hole is formed in the arc-shaped hole seat, the circle center position of the circular-arc strip-shaped hole coincides with the position of the rotating shaft, the sliding block is connected in the circular-arc strip-shaped hole of the arc-shaped hole seat through a positioning bolt, the feeding wheel is arranged on the sliding block, the rotating rod is arranged on the rotating shaft, one end of the rotating rod is hinged to the sliding block, and the other end of the rotating rod is provided with a handle. In this way, flexible structural adjustment can be conducted according to changes of the tensioning requirements of chemical fibers, and the application range and use performance of the tensioning mechanism are greatly promoted.

The invention discloses a modular assembled hospital negative pressure isolation ward structure and a construction method. The construction method comprises the following steps that surveying and setting out are carried out, specifically, a position marking line of a to-be-assembled object is popped up; deepening design and factory processing are carried out, specifically, a negative pressure isolation ward is split into a plurality of functional modules, and a layout drawing is manufactured; the mounting positions of all the functional modules are matched with position marking lines of the modular assembled hospital negative pressure isolation ward structure; and heating and ventilation modules, decoration modules, electrical modules, intelligent modules, medical gas modules and cabinet body modules are sequentially arranged, and after the modules are arranged, gaps are sealed through medical silica gel sealing strips or sealants in a dust-free environment. According to the modular assembled hospital negative pressure isolation ward structure and the construction method, by means of organic combination of the functional modules and wallboards, a negative pressure isolation environment is rapidly built, the mounting sequence is orderly, the field mounting environment is environmental-protecting and comfortable, field integrated assembly is achieved, emergency public health events can be handled favorably, and the efficiency of reconstruction and expansion of existing hospital respiratory infectious disease isolation wards is improved.

The invention relates to a multistage diamond micro-powder selecting machine. The machine comprises a bearing base, electromagnetic vibration devices, ultrasonic vibration devices, electric telescopiclegs, a main sorting disc, secondary sorting discs, inclination angle sensors and vibration sensors, the upper end surface of the bearing base is connected with the main sorting disc and the lower end surfaces of the secondary sorting discs through the electric telescopic legs, the main sorting disc and each secondary sorting disc are uniformly distributed on the upper end surface of the bearingbase in a stepped mode, and the distance between each sorting disc and the upper end surface of the bearing base is not less than 10 cm, electromagnetic vibration devices and ultrasonic vibration devices are uniformly distributed on the side surfaces of the main sorting disc and the secondary sorting discs, the inclination angle sensors are connected with the centre-of-gravity position of the lower end surfaces of the main sorting disc and the secondary sorting discs, and the vibration sensors are arranged on the lower end surfaces of the main sorting disc and the secondary sorting discs in arectangular array structure correspondingly. The multistage diamond micro-powder selecting machine is flexible and convenient in use, good in universality, high in integration and automation degree, high in model selection precision and operation efficiency, high in the degree of automation of feeding and discharging, and the production operation and the daily maintenance cost are low.

The invention relates to a comprehensive teaching platform based on BIM/GIS fusion. The platform comprises a bearing pedestal, a bearing column, a display cavity, a working platform, a tray, a lifting driving mechanism, a positioning plate, a monitoring camera group, a control terminal, and a driving guide rail, wherein the lower end surface of the bearing column is connected with the upper end surface of the bearing pedestal; the upper end surface of the bearing column is connected with the lower end surface of the display cavity; the tray is connected with the display cavity through the lifting driving mechanism; the positioning plate is slidably connected with the driving guide rail through a sliding block; the inner side face of the positioning plate is hinged to the monitoring camera set through a rotary table mechanism; and at least one control terminal is arranged on each working table. The using method comprises the three steps of equipment assembling, teaching setting and homework learning. On one hand, the requirements of subject theory teaching and practical teaching such as computer aided design, computer drawing major and three-dimensional modeling design can be effectively met; and on the other hand, students can carry out key learning and repeated learning on individual knowledge points according to own characteristics, so that the teaching working efficiency and quality are improved.

The invention provides an online learning chip based on a stacked width learning model. The online learning chip comprises a main controller, a memory and a reconfigurable processing unit array, the operation mode is as follows: the main controller reads a control code and controls the configuration information memory to output initialized configuration information to the reconfigurable processing unit array; the reconfigurable processing unit array configures each feature node and each enhancement node to a processing unit in a one-to-one manner according to the initialized configuration information; the input memory inputs the identification training sample features into the model circuit; a processing result is output to an output memory, and then performance value information is fed back to the main controller; the calculated performance value is judged so as to update the width configuration information or the depth configuration information in the configuration information memory; and when the calculated performance value is greater than or equal to the set performance threshold value, online learning is stopped, and the online learning chip is solidified. The chip has the advantages of low computing resource, low power consumption, strong real-time performance and online learning capability.