357results about How to "Reduce the chance of clogging" patented technology

The invention provides a rotary wall type anti-jamming material bin which can effectively prevent material from being jammed in a discharging-bin-part during the discharging process of a grain material bin. The rotary wall type anti-jamming material bin is mainly characterized in that the original integrated bin body of the discharging-bin-part of the material bin is converted into a rotary bin body; and a relative movement system is formed by arc-breaking jam-removing vanes fixed in the wall of the rotary bin body and the rotary bin body, and then materials cannot form stable arc with the bin wall on the inner wall of the rotary bin body to destroy and break down the basic factor of jamming in time so as to better reach the aim of preventing material being jammed and dramatically enhance anti-jamming effect.

The present invention provides a conductive paste characterized by a crystal-based corrosion binder being combined with a glass frit and mixed with a metallic powder and an organic carrier. Methods for preparing each components of the conductive paste are disclosed including several embodiments of prepare Pb—Te—O-based crystal corrosion binder characterized by melting temperatures in a range of 440° C. to 760° C. and substantially free of any glass softening transition upon increasing temperature. Method for preparing the conductive paste includes mixture of the components and a grinding process to ensure all particle sizes in a range of 0.1 to 5.0 microns. Method of applying the conductive paste for the formation of a front electrode of a semiconductor device is presented to illustrate the effectiveness of the crystal-based corrosion binder in transforming the conductive paste to a metallic electrode with good ohmic contact with semiconductor surface.

The invention relates to a deblocking method for coal bed gas well fracturing and powder blocking in the field of coal bed gas exploitation. The method includes adopting an air compressor to slowly inject compressed air from the ground into a shaft of a blocked coal bed gas well to form certain high pressure in the shaft and a coal bed, then opening a well opening discharge valve to quickly release high pressure gas in the shaft, so that blocking coal powder and sand in a fracturing crack will be loosened and move to the shaft with the compressed air and then return to the ground through a delocking pipe column. The process is repeated for multiple rounds to eliminate the well fracturing and coal powder blocking phenomenon, and the gas production will be restored. More importantly, the coal bed is not damaged, and high application value is achieved.

The invention provides a heavy oil hydrogenation demetalization catalyst as well as a preparation method and application of the heavy oil hydrogenation demetalization catalyst. The preparation method comprises the following steps: adding a physical pore-enlarging agent into a metal salt solution containing Mo or W so as to obtain a wet powder pore-enlarging agent; mixing aluminum oxide dry glue powder with the wet powder pore-enlarging agent so as to obtain an aluminum oxide dry glue powder material 1; adding the chemical pore-enlarging agent and a phosphorous compound containing solution to the aluminum oxide dry glue powder so as to obtain an aluminum oxide dry glue powder material 2; mixing the aluminum oxide dry glue powder material 1 with the aluminum oxide dry glue powder material 2 so as to obtain wet materials; drying the wet materials, and roasting so as to obtain an aluminum oxide carrier; and dipping the aluminum oxide carrier into a metal salt solution containing one of Mo and W and/or one of Co and Ni, drying, and roasting, thereby obtaining the heavy oil hydrogenation demetalization catalyst. The invention also provides the heavy oil hydrogenation demetalization catalyst. The catalyst provided by the invention not only has favorable hydrogenation demetalization activity, but also has favorable metal and carbon deposit accommodating performance.

The invention discloses a multi-level refined intelligent denitration system based on big data and a firefly algorithm. The system comprises a coal economizer, an SCR denitration device, an air preheater, a dust removal device, a desulfurization device, a tail gas emission device, a boiler unit, an ammonia spraying main pipe assembly, a denitration inlet flow speed and NOx field distribution monitoring system, a denitration outlet NOx/NH3 field distribution monitoring system, a catalyst area NOx field distribution monitoring system and a catalyst area NOx/NH3 non-uniformity analysis system. According to the system disclosed in the invention, through big data and a particle swarm optimization algorithm, an ammonia spraying branch pipe real-time adjustment system is established, and dual control of partition control and ammonia spraying total amount optimization is realized; the flow field matching is accurate, the variable working condition adaptability is high, the quality of ammonia spraying control can be effectively improved, and the SCR performance can meet the NOx ultralow emission requirement; the comprehensive effects of saving the ammonia spraying amount, reducing the NOx emission concentration, reducing the air pre-heater blockage probability and reducing tail equipment dust accumulation are achieved.

The invention relates to a cement roller press with a smooth feeding function and a crushing roller cleaning function. The cement roller press comprises a main body, a feeding hopper, a mounting frame, two crushing rollers and two power devices, and further comprises an extrusion mechanism and two cleaning mechanisms, wherein each cleaning mechanism comprises a supporting sleeve, a lifting rod, acleaning brush, a supporting wheel, a spring, a first knocking block and a second knocking block; and the extrusion mechanism comprises a support, a screw rod, a fixed bearing, a ball screw bearing, apressing disc, a first connecting rod, two driving assemblies, two supporting assemblies and at least two crushing teeth. According to the cement roller press with the smooth feeding function and thecrushing roller cleaning function, raw materials can be extruded through the extrusion mechanism, so that the probability of blockage of the feeding hopper is reduced, meanwhile, the grabbing effectof the crushing rollers on the raw materials is improved, and the crushing effect of the roller press on the raw materials is improved; and the raw materials adhered to the crushing rollers can be scraped off through the cleaning mechanisms, so that the practicability of the roller press is improved.

The invention relates to the field of metallurgical aluminum preparation and discloses a method and a device for removing organic matters in aluminum oxide mother liquor with assistance of an aluminumash sintering process. The method is characterized by comprising the following steps: guiding raw material slurry into a rotary kiln through a raw material pipe; guiding natural gas and air into therotary kiln through a fuel pipe and an air pipe respectively for a sintering reaction; guiding clinker obtained by the sintering reaction into a cooling machine through a cooling pipe; finally, feeding the clinker cooled by the cooling machine into a ball mill through a conveyor; adding aluminum oxide evaporation mother liquor and sintering again to finish removal of organic matters in the aluminum oxide mother liquor; thus, inert aluminum ash in the aluminum ash can be safely and effectively treated, total recovery rate of aluminum in the aluminum ash reaches 95% or more, overall recovery rate of organic matters is 85% or more, and the problems of high consumption and cost of additives, difficulty in operation and implementation, difficulty in regeneration and low recovery efficiency of existing methods such as crystallization, oxidation, roasting, ion exchange and causticization for removing organic matters in aluminum oxide are solved.

The invention discloses an agricultural machinery equipment integrated with simultaneous precision sowing and fertilization, shallow-buried drip irrigation pipe laying and mulching and a method. The agricultural machinery equipment comprises an integrated chassis, a system power wheel is mounted on the integrated chassis, a gear is fixedly connected to the axle of the system power wheel, the gearis meshed with a reverse gear, and thereby power is respectively transmitted to a shallow-buried drip irrigation pipe laying system, an air suction type precision sowing system, a quantitative and positioned seed and fertilizer spiral conveying system and a mulching film covering and earthing system; and a control system is respectively connected to the shallow-buried drip irrigation pipe laying system, the air suction type precision sowing system, the quantitative and positioned seed and fertilizer spiral conveying system and the mulching film covering and earthing system, and is used for controlling the operation of each system. The agricultural machine disclosed by the application can simultaneously carry out four-row sowing and two-row pipe laying operations, and can be adapted to therequirement of row spacings and plant spacings of different crops and the requirement of fertilization pipe laying positions according to actual requirements of agricultural production. Intelligentized high-efficient sowing, fertilization, irrigation and mulching are realized, and the adaptability of the machine and the working efficiency of agricultural cultivation are greatly increased.

The invention discloses a vehicle travelling state broadcasting method and apparatus, and a vehicle-mounted terminal. The vehicle travelling state broadcasting method is applied to Internet of Vehicles vehicle state broadcasting, and the method comprises the following steps: judging whether the travelling state of a vehicle is stable; if it is judged that the travelling state of the vehicle is notstable, performing vehicle information broadcasting at a first preset broadcasting period T; if it is judged that the travelling state of the vehicle is stable, continuing to judge whether the vehicle is in a slow travelling state; when it is judged that the vehicle is in the slow travelling state, judging whether the vehicle is continuously in the slow travelling state according to a preset judgment period, and if so, gradually prolonging the broadcasting period until to a first broadcasting period upper limit T1max, and if it is judged that the travelling state of the vehicle is not stableat the preset judgment period, performing vehicle information broadcasting at the first preset broadcasting period T, wherein T1max is greater than T1. The broadcasting period can be adjusted in timewhen the travelling state of the vehicle changes, thereby reducing the communication channel load, reducing the probability of channel blockage, reducing the packet loss rate and shortening the information delay.

The invention discloses intelligent agricultural equipment integrating precise simultaneous seed and fertilizer application and shallow buried drip irrigation pipe laying functions. The problems that in the prior art, drip irrigation belt laying is poor in stability, and drip irrigation belts cannot be shorn automatically are solved. The intelligent agricultural equipment is characterized by integrally completing sowing, fertilizing and drip irrigation belt laying, and drip irrigation belt laying is stable. According to the technical scheme, the equipment comprises an air-aspiration type precise sowing system arranged on a rack, a spiral seed and fertilizer quantitative conveying system arranged at the position, at one side of the air-aspiration type precise sowing system, of the rack and a shallow buried drip irrigation pipe laying system, a belt pressing wheel in the shallow buried drip irrigation pipe laying system is arranged below the rack, the shallow buried drip irrigation pipe laying system comprises a drip irrigation belt roll frame fixed to the rack, a reverse wheel, two drip irrigation belt extruding-out rolls opposite in rotating direction, a rotating drip irrigation belt shearing device, a middle wheel and the belt pressing wheel are sequentially arranged on the lower portion of the drip irrigation belt roll frame from one direction to the other direction, and a drip irrigation belt passes through the reverse wheel, the drip irrigation belt extruding-out rolls, the rotating drip irrigation belt shearing device and the middle wheel to reach the belt pressing wheel.

The invention discloses a positive-negative integrated conveying system device of a multifunctional pump, comprising a multifunctional bin pump, a negative pressure ash loading device of the multifunctional pump and a positive pressure conveying device of the multifunctional pump. In the invention, a set of bin pumps of the conveying system device can be connected with a plurality of ash hoppers without an intermediate ash silo; and ash is conveyed to a terminal ash silo at one step, a large amount of materials and equipment can be saved and the discharge speed of the bin pump can be adjusted, thereby the conveying system device is not easy to block the pneumatic conveying system device of the pipe.

The invention discloses one filteration- deposition combined perfusion system used for animal cell perfusion culture. It comprises filtering- deposition- perfusion column, peristaltic pump, automatic controller, tri- way pipeline and pipe clamp; filtering- deposition- perfusion column is connected with peristaltic pump through tri- way pipeline, the rotation of peristaltic pump is controlled by automatic controller, pipe clamp is installed on pipe between filtering- deposition- perfusion column and peristaltic pump. The invention is characterized by simple structure, low cost, high collecting efficiency, long life length and wide application on micro- carrier or cluster animal cell perfusion culture.

The invention discloses a train network control system based on a TCN (Train Communication Network). The system comprises a first CCU (Central Control Unit), a WTB (Wire Train Bus) and an MVB (Multifunction Vehicle Bus), wherein the MVB comprises a first-grade MVB and a second-grade MVB which are independent of each other; the WTB is in communication connection with the first CCU through a gateway; the first CCU is in communication connection with a first-class control sub-system of a train through the first-grade MVB, and in communication connection with a second-class control sub-system through the second-grade MVB; the first-class control sub-system is a control system of which a required value of a communication bandwidth is greater than a preset value on the train; and the second-class control sub-system is a control system of which a required value of the communication bandwidth is smaller than or equal to the preset value. Through adoption of the train network control system, the probability of data jamming is lowered; the occurrence of a data jamming phenomenon is avoided as much as possible; and the security and reliability of the system are enhanced.

The invention relates to a laminated self-adaptive drip irrigation emitter and a use method thereof; the laminated self-adaptive drip irrigation emitter is characterized by comprising a emitter shell body; both ends of the emitter shell body are respectively provided with a butting joint; two groups of arc tooth-shaped energy dissipation runners are arranged on the outer wall of the emitter shell body; a structure area and a buffer area are arranged between the two groups of arc tooth-shaped energy dissipation runners; positions on the two groups of arc tooth-shaped energy dissipation runners which are close to the structure area are provided with wall surface water inlets which are communicated with the inside of the emitter shell body, and the positions of the two groups of arc tooth-shaped energy dissipation runners which are close to the buffer area are provided with outlets which are communicated with the buffer area; both ends of the outer wall of the emitter shell body are respectively provided with a circle of water collection runner which is communicated with the buffer area; a capillary is wrapped outside the emitter shell body, and water outlets are arranged on one or two ends of the water collection runner on the capillary; positions in the emitter shell body which are close to butting joints on both ends are respectively provided with a water inlet and outlet laminate; two energy dissipation laminates are arranged between the two water inlet and outlet laminates; an elastic diaphragm is arranged between the two energy dissipation laminates; and the wall surface water inlets are arranged between the two energy dissipation laminates.

The invention discloses an equipotential head suspension micropressure drip irrigation equipment, comprising a main tube, a branch tube, a hair canal, a suspension micro path emitter, a water tank and a main tube water pressure regulating mechanism. The main tube water pressure regulating mechanism comprises a water regulating tank and a constant water level tank. A one-way inlet valve is arranged between the water regulating tank and the constant water level tank. A water supply tank is arranged in the water regulating tank. The water tank is set at the upper end of the water regulating tank and connected with the water regulating tank by a water supply switch to make the water level of the constant water level tank constant. The water outlet of the constant water level tank is connected with the water inlet of the main tube. The water inlet of the hair canal is connected with the water outlet of the branch tube. The hair canal is hung with hoses with different length in the perpendicular direction. The micro path emitter is arranged on the hose. Compared with the prior art, the device has simple structure, low cost, energy-saving, convenient application and maintenance, constant outflow of the micro path emitters, good irrigation effect and is suitable for applying in wide countryside.