44results about How to "Suppress escape" patented technology

The present invention provides a aromatic amine compound and its organic electrical light -to -light device, which involves the field of organic optoelectronics materials.The present invention can obtain the aromatic amine compounds described by the present invention by introducing a specific mixed -alcohol base group and bispentine heptane groups.OK, good film formability, high refractive index, simple synthesis, can be applied to the mechanical electrical light -derivatives as the cavity transmission layer and / or coverage layer, which can effectively solve the poor thermal stability in the mechanical and electrical luminous devices and low light emitting efficiency.The problem of shorter life span, its mechanical and electrical lighting devices have the advantages of high light efficiency and long life.

The invention provides a triarylamine compound and an organic electroluminescence device thereof, and relates to the technical field of organic photoelectric materials. In the present invention, substituted or unsubstituted 9-phenyl-fluorene groups and triarylamine groups containing benzoxazole / benzothiazole / benzimidazole / benzotriazole are passed through the 9-position of fluorene (tertiary C) is connected to obtain the triarylamine compound of the present invention, which has good hole transport ability, high glass transition temperature, good thermal stability, good film-forming property, high refractive index, simple synthesis, and can be applied to As a hole transport layer and / or covering layer in organic electroluminescent devices, it can effectively solve the problems of low luminous efficiency and short device life of organic electroluminescent devices. Its organic electroluminescent devices have high luminous efficiency and long service life. advantage.

The invention discloses a coal mine fully-mechanized excavation face short-distance comprehensive dedusting method. A dedusting fan is arranged on the fully-mechanized excavation face, and an air draft port of the dedusting fan is a horn mouth type air draft port. A multi-step wall-adhering air duct connected onto a forced draught fan air duct is arranged at the position within a 20meter distance from the fully-mechanized excavation face. One to two dust collecting nets covering the full face are arranged at the position of mobile belt conveyer tail of a fully-mechanized excavation machine, and automatic flushing water curtains are arranged on the dust collecting nets. A bearing trolley of the dedusting fan is connected with the mobile belt conveyer tail end of the fully-mechanized excavation machine. The dedusting fan is in linkage with the fully-mechanized excavation machine. Air pressures of three hard air duct sections are identical by adjusting distances between three hard air duct sections and a cambered surface air blocking round plate, accordingly two sides of the face backward form three directional air walls, and air flows carried with dust is completely flow into the dedusting fan. By adopting the coal mine fully-mechanized excavation face short-distance comprehensive dedusting method, the dust concentration of an operation place is reduced, the coal-dust explosion danger and dust phthisis morbidity are reduced, and safety production of a coal mine is ensured.

The invention discloses a ventilation system for suppressing the escape of pollutants in an open paint spraying space. The periphery of the open painting space; the air flowing through the open painting space and the periphery of the open painting space forms a polluted airflow and enters the purification and separation system, in which the separation airflow with high pollutant concentration and the purification airflow with low pollutant concentration are formed. Air flow, the separated air flow with high pollutant concentration is discharged through the exhaust air flow through the mechanical exhaust system, and the purified air flow with low pollutant concentration is sent to the mechanical air supply system and the air curtain air supply system respectively by the circulating air supply system. The fresh air supply system described above forms a fresh air stream and sends it into the mechanical air supply system. The invention realizes the linkage between the operation of the ventilation system and the dynamic change of the concentration of pollutants in the environment, and reduces the power consumption and air consumption of the ventilation system during the painting process in an open space.

The invention provides an electret with higher piezoelectricity. The electret sheet of the present invention is characterized in that it contains two kinds of synthetic resins that are incompatible with each other and these synthetic resins form a phase-separated structure, and the synthetic resin sheet obtained by cross-linking the above-mentioned synthetic resins with a multifunctional monomer passes through the charge. Charged by injection, therefore, in the interface of two kinds of synthetic resins that are incompatible with each other, apparently positive and negative charges exist in a polarized state. If an external force is applied to the electret sheet to deform the electret sheet, Then the relative positions of these positive charges and negative charges change, and a good electrical response is produced along with the change, therefore, the electret sheet has excellent piezoelectricity.

The present invention relates to a vertical rectangular cooling furnace for sintered ore. The corner triangular area in the cooling furnace is provided with a corner wind suppressing device, and the surrounding wall areas in the cooling furnace are provided with a side wall wind suppressing and guiding device. The corner wind suppressing device comprises an upper base plate, a lower base plate and a vertical plate, the upper base plate and the lower base plate are arranged in parallel and are fixedly connected with the furnace body of the cooling furnace, and the vertical plate is connected with the upper base plate and the lower base plate. Fixed connection; the side wall wind suppression deflector includes a wind suppression deflector and track steel, the angle between the wind suppression deflector and the furnace wall is 35-50 degrees, and the wind suppression deflector The bottom edge of the lower bottom edge is close to the refractory material of the furnace wall, the upper top edge of the wind-suppressing deflector is fixedly connected to the waist of the rail steel, and one leg of the rail steel is fixedly connected to the bottom surface of the wind-suppressing deflector. The two sides of the wind-suppressing deflector are fixedly connected to adjacent vertical plates respectively. The sintered ore cooling effect of the invention is good, the flue gas temperature recovered from the top of the furnace is high, and the recovery and utilization efficiency of waste heat is high.

The invention discloses a method for raising water solubility of hydrogen, comprising the following steps: putting water into an aluminium bag and pretreating at 4 DEG C at the pressure of 0.4-0.8 Mpa for 6-7h; continuously blowing pure hydrogen prepared by electrolysis of water at 4 DEG C at the pressure of 0.4Mpa into water to dissolve for 2-3h; carrying out ultrasonic treatment on the above solution at 4 DEG C at pressure of 0.2Mpa under the condition of 10-30 thousands Hertz for 2-4h; and finally storing the hydrogen-containing solution at low temperature of 1-4 DEG C. When the above hydrogen-containing solution is applied on the surface of the skin, an aqueous solution containing hydrogen is conveyed through a conveyer pipe to the surface of the skin, hydrogen enters the skin through a biological membrane of the conveyer pipe, and the aqueous solution is recycled after outputted by the conveyer pipe. According to the hydrogen-containing solution, the aqueous solution is recycled but never enters human body. Thus, metabolism of patients is greatly reduced. The hydrogen-containing solution is especially suitable for disabled patients with lower limb ischemia reperfusion injury. By the preparation method, solubility of hydrogen can be greatly raised, and the effect of treating lower limb ischemia reperfusion injury is significant.