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

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 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.