摘要:
A solidifying device is for solidifying a substrate which includes a middle and two side portions. The thermostability of the middle portion is greater than that of the side portions. The solidifying device includes a housing, a heating member, a temperature control air-floating member and a conveyor. The housing defines a working space. The heating member is in the working space. The substrate has a heat receiving surface facing the heating member. The temperature control air-floating member is in the working space and below the heating member. The conveyor is for transporting the substrate into the working space and between the temperature control air-floating member and the heating member. The heating member is for providing heat to the substrate. The temperature control air-floating member is for supplying air towards the substrate to allow the substrate to float in the working space and form a high-temperature and two low-temperature areas.
摘要:
A solidifying device is for solidifying a substrate which includes a middle and two side portions. The thermostability of the middle portion is greater than that of the side portions. The solidifying device includes a housing, a heating member, a temperature control air-floating member and a conveyor. The housing defines a working space. The heating member is in the working space. The substrate has a heat receiving surface facing the heating member. The temperature control air-floating member is in the working space and below the heating member. The conveyor is for transporting the substrate into the working space and between the temperature control air-floating member and the heating member. The heating member is for providing heat to the substrate. The temperature control air-floating member is for supplying air towards the substrate to allow the substrate to float in the working space and form a high-temperature and two low-temperature areas.
摘要:
Provided is a pallet car for the transport of bulk material for a thermal treatment thereof. The pallet car comprises a frame with at least two opposed cross-beams on which grate bars rest and two end pieces each connecting the cross-beams with each other, which each include at least two rollers and at least one side wall. In the pallet car, the grate bars and/or the side walls and/or the insulating plates are made of a ceramic fiber composite, wherein the fibers are metallic and high-temperature resistant.
摘要:
A supply chute, and a system and a method for supplying sinter material from a sinter belt to a sinter cooler (26). A flow of the sinter material (16) is input into the supply chute (1). The flow of sinter material (16) after being input is concentrated by a device in the chute. This means that the flow is remixed for more uniform grain size distribution. The flow is thereafter widened by a widening device in the chute. Then the widened flow of sinter material (16), optionally after making the movement direction of the flow of sinter material (16) uniform, the flow is passed through a segregation device (8,25) and is there segregated, which means that a grain size distribution across the thickness and across the width of the flow is made more uniform. This occurs after the widened flow of sinter material moves in the direction of the output region (5). After passing through the output region (5), the flow of sinter material (16) is supplied to the sinter cooler (26), wherein the horizontal main component B of the movement direction of the flow of sinter material is largely perpendicular to the horizontal main component A of the movement of sinter material by the sinter belt.
摘要:
Apparatus for supplying diluted gaseous fuel to not more than a lower limit combustion concentration at downstream of suction type sintering machine including a hood having similar width as a circularly-moving pallet and arranged above charged layer to surround the pallet in all directions, pipes disposed at upper position of charged layer in the hood and supplying the fuel air inside the hood, baffle plates formed by arranging plate materials having dog-leg shaped cross-section in plural rows and steps at intervals in the widthwise and height directions, respectively, of the hood to make each interval formed between adjacent plate materials in widthwise direction of the hood in each steps vertically alternate; fences having a void and arranged on both sides upper ends of the hood; vortex suppressing plates formed between fences at intervals having a void ratio, 20˜80%; whereby the gaseous fuel leakage supplied to the outside is prevented.
摘要:
In the present pelletizing apparatus, the induration of iron ore concentrate pellets is achieved in a tunnel furnace heated by plasma torches, wherein the generation of CO2 by the conventional iron ore pelletizing processes is reduced by using electricity powered plasma torches instead of burning natural gas, heavy oil or pulverized coal in burners, thereby reducing considerably industrial pollution of the atmosphere.
摘要:
The invention relates to a method and equipment for the continuous sintering of mineral material in a sintering furnace (S). In the method, a material bed (2) is formed on a conveyor base (1), the material bed (2) is conveyed by the conveyor base (1) through the process zones (I-VII) of the sintering furnace that have different temperatures, the zones including at least one drying zone (I), at least one cooling zone (VII), and at least one other process zone (II, III, IV, V, VI) between the said drying zone and cooling zone, and gas is conducted through the conveyor base and the material bed (2), when the material bed travels through the process zones (I-VII), and gas is circulated in a circulation gas duct (3) from the last cooling zone (VII) to the drying zone (I). Part of the gas flow that is conducted to the drying zone (I) in the circulation gas duct (3) is removed as an exhaust gas flow (B) by the exhaust gas blower (5) of an exhaust gas duct (4). The volume flow of the exhaust gas flow (B) is regulated by regulating the blowing power of the blower (5) to control the temperature of the gas flow travelling through the material bed in the drying zone.
摘要:
A process for dry granulation of hot liquid slag wherein the hot liquid slag is mixed with solid metallic particles so as to form a solidified, vitrified slag cake mixed with the metallic particles, the slag cake is crushed so as to form hot slag particles and heated solid particles, said particles are cooled and said solid metallic particles are recycled.
摘要:
A sintering plant includes an apparatus for transporting sinter material along a sintering section through at least one first zone in which the sinter material heats to a low temperature, and through a second zone in which the sinter material heats to a high temperature. Discharge lines are provided along the sintering section. A dioxin catalytic converter for exhaust gas is provided in the discharge lines disposed along the second zone or directly downstream thereof. In this manner, catalytic breakdown of dioxins can be achieved even in the exhaust gas of a sintering plant, which has not been possible heretofore.
摘要:
The subject of the invention is a process for igniting a sinter mix composed of a solid fuel and sintering material on a sintering machine in which the sinter mix is passed underneath an ignition kiln with closed end and side walls and a closed hood, whereby hot flue gases are generated in the ignition kiln above the sintering material and these hot flue gases heat and ignite the surface of the sintering material by radiation and convection. A rapid, uniform and economical ignition is thereby attained in that flue gases from one or more approximately stoichiometrically operated burners are introduced into the upper region of the igniting kiln and that gases with an increased oxygen content are introduced into the lower region in such a manner that a kiln atmosphere results which, in the upper region of the igniting hood, is hotter and relatively impoverished in oxygen, while in the lower region it is cooler and relatively oxygen enriched. A further process variant provides an improvement of the ignition procedure by using a thermal insulating hood. Apparatus for carrying out the process is also described.