35results about How to "Reduce space temperature" patented technology

The invention belongs to the coaling field of coke oven vehicles and especially relates to a coaling method for a 7.63m coke oven vehicle. A coal charger charges coal into a coke oven charring room through four helical coal charging devices with the same structures. The four helical coal charging devices are controlled by delay time, and coal charging time of each helical coal charging device is 85 s. First coal leveling is carried out when 85-95% of the pre-coaling amount undergoes coal charging in the coke oven charring room by the four helical coal charging devices; and second coal leveling is carried out when coal charging is completely finished. According to the invention, furnace-mouth gas and smoke leakage caused by too much pressure in the space of the furnace roof is avoided. Meanwhile, coal charging amount of a single coke oven charring room is increased, the space height of the furnace roof is reduced, the temperature of the furnace roof space is decreased, single-hole coke yield is increased, and coke output is raised.

The invention provides a step-cooling magnetic liquid sealing device for a reactor and belongs to the field of mechanical engineering sealing. The problem that when an existing magnetic liquid sealing device is used on a reactor, the sealing device is short in service life and prone to failure due to the corrosion effect of organic solvent vapor in the reactor on magnetic liquid is solved. The step-cooling magnetic liquid sealing device is composed of a magnetic liquid sealing assembly, a movable ring (2) and a fixed ring (4). When the step-cooling magnetic liquid sealing device is applied to reactor sealing, the movable ring (2) is placed in a pyramid mode with the large end face facing downward, the fixed ring (4) is placed in an inverted-funnel mode with the large end face facing upward, the movable ring (2) and the fixed ring (4) form a stepping labyrinth, and liquidation of organic solvent vapor and decrease of space temperature between the fixed ring (4) and pole shoes are facilitated; and the upper end face of the fixed ring (4) inclines towards a rotary shaft (16), the lower end face of the first pole shoe (8) is in an inverted-T shape, and fixed ring cooling liquid is 5-10 DEG C lower than the pole shoes in temperature. According to the step-cooling magnetic liquid sealing device, the problem that the sealing device is short in service life due to the corrosion effect of the organic solvent vapor on the magnetic liquid is solved.

The invention relates to an efficient energy-saving environmental-friendly unit type photogravure press used for air temperature adjustment of the unit type photogravure press self as well as an energy-saving environmental-friendly method. The photogravure press comprises a unit type photogravure press, an air conditioning plant is arranged between units requiring constant temperature of the unit type photogravure press, a hot wind outlet arranged on the upper part of the air conditioning plant is communicated with an inlet of a drying box body in the unit type photogravure press, a cold wind outlet on the lower part is positioned below the unit in the unit type photogravure press. The invention has the advantages of high cost performance, can realize seamless butt joint with the traditional technology and saves electricity for 56% if compared with products with the same grade on the basis of satisfying the normal function of printing machinery and national environmental protection requirement and has obvious energy saving effect; the environmental impact assessment index is obviously lowered; the efficient energy-saving environmental-friendly unit type photogravure press can realize seamless butt joint with the technology and craft of the existing printing mechanical products under the condition that performance is greatly improved, and also can be used for energy saving modification of printing machinery with low energy efficiency ratio.

The invention relates to a formula for producing E glass, which adopts boron magnesium calcium pulverized powder to replace fluorite as composite fluxing agent. The main compositions by weight portion of the technological formula are: 50 to 60 portions of silicon dioxide, 0 to 20 portions of aluminum sesquioxide, 2 to 7 portions of boron sesquioxide, 15 to 25 portions of calcium oxide, 0.2 to 4 portions of magnesia and 0.1 to 0.3 portion of fluorine, wherein, the content of sodium oxide and potassium oxide is less than 0.70. By adoption of the E glass manufacturing technique, the amount of the fluorite during the producing procedure is greatly reduced and the fluorine content in exhaust gas is greatly reduced, thereby the environmental pollution is reduced; simultaneously the content of fluorine element in the glass is reduced, the strength of glass fibers is improved and further the quality of the glass is improved; and the temperature in a furnace is reduced, the service life of the furnace is increased and the expenditure is saved for enterprises.

The invention relates to a method for controlling temperature of a super-large coke oven. The method comprises the following steps of: 1) recoding coal loading time of each oven hole of the super-huge coke oven; 2) calculating and recording the time difference between the coal loading time of each oven hole in the step 1) and calculating time; 3) accumulating contributions, which correspond to all time differences in the step 2), of coal loading of the oven holes to obtain the coking process of the whole coke oven; 4) smoothly generating temperature indexes by using a plurality of contributions in the step 3), and calculating and simulating a coke oven temperature fluctuation movement track; 5) dividing the heating process of the coke coven into a plurality of sections according to the coke oven temperature fluctuation movement track which is established in the step 4), and dividing a temperature determining result of each section into a plurality of conditions; and 6) establishing the corresponding controlling adjustment scheme for each condition in the step 5).

The invention discloses an anti-tempering type drilled fire water gun, comprising: a bracket, handles are symmetrically arranged on the left and right sides, and a tripod is arranged below; a fixing sleeve is arranged in the middle of the bracket; a drilling pipe, the front end Drilling sawtooth is provided; the top fixing seat is slidingly connected with the drilling pipe through the top shaft sleeve, and the top sealing ring is provided at the front end; the sealing slide seat is nested inside the drilling pipe, and the front end is provided with a water gun nozzle. The invention can drill the space where explosion may occur through the drilling tube, and the outer side and the middle of the drilling tube are provided with corresponding sealing structures, which can ensure that the space remains sealed after drilling to prevent outside air from entering. There is a sealing sliding seat in the middle of the drilling pipe, and the sealing sliding seat can slide in the drilling pipe, thereby pushing the nozzle of the water gun from the drilling pipe into the confined space, so that the nozzle of the water nozzle can spray water in the confined space, thereby eliminating Explosion hazard.

The invention discloses a multifunctional dust remover. The multifunctional dust remover comprises a box body; a fan fixedly connected with the box body is arranged on the lower portion of one side ofthe box body; filter plates in sliding fit with the box body are arranged on the periphery of the top of the box body; filter screens movably connected with the filter plates are arranged on the filter plates; and an air humidifier fixedly connected with the box body is arranged at the bottom of one side of the box body. The device is simple in structure and convenient to use. The fan rotates tosuck air with dust into the box body, and the air passes through the filter screens, so that the effects of filtering and separating the dust are achieved. The air humidifier is further designed, so that purification and dust removal are further achieved, the functions are diversified, and practicability is high.

The invention discloses an evaporation type automobile parking ventilating and cooling system, which comprises a working power supply. In the system, a partition board is arranged in a shell to divide the inner cavity of the shell into an upper cavity and a lower cavity, the evaporation section and condensation section of a heat pipe exchanger are arranged in the upper and lower tow cavities respectively, two circulating fans are arranged on the left and right sides of the evaporation section in the upper cavity respectively, two interior dry and hot air inlets for the air exhaust of the circulating fans are formed on the left and right lateral plates of the shell and positioned above the partition board respectively; and an interior dry and cold air exhaust hole is formed on the top plate of the shell; a water-absorbing porous honeycomb ceramic body is arranged in an air intake channel on the left side of the condensation section in the lower cavity, the ceramic body is arranged in the water tank and an exhaust fan is arranged on the right side of the condensation section in the lower cavity; and an interior dry and hot air first inlet is formed on the left lateral plate of the shell and positioned below the partition board, and an interior wet and hot air outlet is formed on the right lateral plate of the shell and positioned below the partition board. The system has ventilation and cooling functions and has the characteristics of simple structure, convenient installation and low energy consumption.