Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F27—FURNACES; KILNS; OVENS; RETORTS
  • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
  • F27B19/00—Combinations of different kinds of furnaces that are not all covered by any single one of main groups F27B1/00 - F27B17/00
• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
  • C22B1/00—Preliminary treatment of ores or scrap
  • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
  • C22B1/16—Sintering; Agglomerating
  • C22B1/20—Sintering; Agglomerating in sintering machines with movable grates
  • C22B1/205—Sintering; Agglomerating in sintering machines with movable grates regulation of the sintering process
• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
  • C22B1/00—Preliminary treatment of ores or scrap
  • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
  • C22B1/16—Sintering; Agglomerating
  • C22B1/20—Sintering; Agglomerating in sintering machines with movable grates
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F27—FURNACES; KILNS; OVENS; RETORTS
  • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
  • F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
  • F27B21/06—Endless-strand sintering machines

Definitions

• the present invention relates to a method for producing a raw material for a blast furnace using the lower dwelloid (), and a method for use in this method.
• the surface layer is ignited by ignition 0. After being fired, it continues to burn with the air directed toward the lower layer by the windbox, and gradually proceeds to () in the lower layer as it moves. During this firing, the moisture contained in the cocoons is vaporized by the heat generated by and is sucked down to form a lower layer that has not yet increased in temperature. If the temperature exceeds a certain level, the raw material that is the suction gas will be filled with moisture, and the resistance to ventilation will be increased. Increase. Note that the melt required for the reaction that occurs during combustion also increases the ventilation resistance.
• Production is determined by X ().
• the production volume of varies depending on the length of the material, () of the raw material stack, the degree of the material, the annealing, the yield. In order to increase the production volume, it is considered effective to improve the temper) and shorten the time, or increase the degree of baking before crushing to improve the yield. .
• Fig. 2 shows the temperature of the fabric when the combustion is moving through the 60O thickness (line is 200 from the surface of the 40O surface). This is 40 for wet and 40 for wet.
• Fig. 3 shows the distribution of degrees during production and low production.
• the time at which the child starts to melt and is held at the upper temperature is expressed in the case of production and in the case of high production that emphasizes productivity.
• the high temperature is maintained compared to the combination. If the holding interval is shortened, it will become insufficient, leading to a decrease in yield, and the yield will decrease. Therefore, in order to increase the production volume, it is necessary to take some steps that can increase the yield and increase the yield even in a short period of time in order to maintain and improve the yield. .
• S Yatta index or tumbler index
• the patent discloses a technique of igniting and injecting a gas material onto the equipment.
• Gas (PG) gas (even if it is G, it uses a high concentration of gas.
• PG Gas
• the temperature becomes higher than 8 O because it is not reduced.
• the combustible gas is injected after ignition, there is a high risk of fire between the beds due to the combustible gas, which is not realistic.
• it has not been put to practical use.
• Patent 2 also discloses a technique for igniting and injecting combustible gas into the air sucked into the device.
• a supply of about 0 is preferred, but the red-hot state remains after ignition, and there is a high risk of fire due to gas depending on the supply. Therefore, if combustible gas is burned, there is no effect, and if burned with, the rise by the combustion gas deteriorates air permeability due to thermal expansion, so productivity is reduced, so until now it has been put into practical use It ’s not.
• it is a plan to do business in the normal business, and it becomes a high-temperature business with the amount of heat generated by combustible gas,
• Patent 3 states that in order to increase the temperature of the material, a door is placed on the layer, and air and coke gas are inserted through the door after ignition.
• the process consists of forming a pot of fire on the pot, dressed with a pot that contains moving stones.
• the gas charge is supplied to the upper part of the container and is released to produce a charge less than the burnup.
• the gas material is supplied to the atmosphere above the atmosphere at the speed at which the blow-off phenomenon occurs, and then the material is burned to produce a material with a burn-up or lower. It is desirable that the disappearing phenomenon occurs at a velocity exceeding the gas temperature, and the gas material is released into the upper atmosphere at a rate of 2 or more of the gas temperature and released, so that a material below the burn-up rate is not generated. Is preferred. It is more preferable that the gas material is released into the upper atmosphere at a rate of 2 or more of the gas material and released to produce a material with a combustion level or less. In the case of metagas,, 0 ⁇ 4 S,, 4 S.
• the process be released with a force of 3 to 000 with respect to the ambient pressure and generate a material with a burnup or less.
• the gas material is ejected from the full opening of the gas to the upper part of the opening. It is more preferable that the caliber is 0-5-5. In order to control the combustion level, it is preferable to have the following items.
• the combustion is performed by firing and the combustion to generate cake is as follows.
• the () process consists of burning some of the material introduced from above the bed to reach the unburned one.
• (B) It is preferable to adjust the degree by burning the material and extending the holding time of the combustion.
• step (C) the diluent is sucked into the device after ignition, and the material is burned in the fire.
• the process of () sucks the diluent into the device before it is completed after the surface of the surface has been baked, and the material is burned.
• the process (E) causes the material to be sucked into the area where the combustion / fuel ratio is 5 or higher, and the material is burned in the fire.
• the () process sucks the diluent at the position where the combustion front reaches the surface, and burns the material in the firing.
• the process (G) involves sucking the material into the side wall and burning the material in the fire.
• the combustible gas is diluted to a concentration above 2 below 75. More preferred is a combustible gas diluted to a concentration above 2 below 6 and most preferred is a combustible gas diluted to a concentration below 2 below 25.
• the gas supplied above is preferably less than.
• a Gas selected from the group consisting of gas, cous gas, blast furnace / cous gas, city gas, natural gas, methane gas, tagas, pung gas and those gases.
• the group was selected from the group consisting of a, te, petroleum, and other hydrocarbon compounds that vaporized higher materials than the cadmium. Further, the following is provided.
• the raw material supply that forms the material that contains powdered stones on the surface, and the gas box that is arranged in the row direction, the gas material in the upper direction Has a gas supply device that goes out and mixes with air
• pre-charge and the gas charge into the upper atmosphere and mix it with the air to produce a low burn-up charge. It is preferable to supply the following:
• the charge supply device shall consist of a number of charge supply pipes along the direction of the tank, and a cup that becomes a nozzle and an opening for discharging the gas charge after being installed. It has stages.
• the charge supply device has a number of charge supply pipes arranged in the row direction of the tank, and a stage having one of the two kinds of holes for discharging gas charges. .
• the material supply device has a gas material supply type, a stage having a slit, a nozzle for discharging the gas material, and the stage has a diameter of 0.5 to 5 mm.
• the charge supply device has a control device that controls the gas charge supply in the t-direction.
• the suction air volume is kept constant by supplying a large amount of fuel to the suction area and reducing the amount of fuel supply to the area of the suction area according to the charge supply and feed direction. It has a maintenance control device.
• Gas supply A gas charge supply device that moves the gas charge downward.
• the material supply device is a gas material supply type gas supply slit provided in the gas material supply type, with an opening or with a slit. Have a degree of dispersion.
• the material supply device is a gas material supply type that can rotate around the shaft.
• the material supply unit has a gas material outlet at a height of 30O above the surface.
• the material supply device has an elevating mechanism that can adjust the gas material device at a height of 30O above the surface. It is preferable to place the following in the charge supply.
• (C) Sidewalk According to the description, in the downward work, the gas charge is taken out into the atmosphere, and the charge diluted to a predetermined degree is supplied to the equipment), and can be burned at the target position. However, in this case, by controlling the placement of the diluent, the degree of combustion, and the high temperature holding time, the degree of the degree of lowering as well as the upper part of the combustion leg can be reduced. You can work to enhance it. However, in the clear, it does not worsen the temper of the body, and responds to combustion, for example, through the downward control of this region and the width control in the row direction, it is possible to control the stroke at any position. The degree of product can be controlled, so that it is possible to manufacture with a high product yield and high product yield. And the work that uses the light can be done stably. A simple description of the surface
• FIG. 4 is a diagram illustrating a process.
• FIG. 2 is a diagram for explaining the temperature distribution at.
• (b) is a diagram illustrating an experiment that adjusts the effect of the supply of cake material.
• FIG. 8 is a diagram for explaining a method of discharging a gas material immediately below according to Ming.
• FIG. 9 is a diagram for explaining a method of discharging a gas material in the horizontal direction according to light.
• 0 is a diagram for explaining a method of discharging gas in an upward direction for mixing and mixing with.
• FIG. 5 is a diagram for explaining a method of discharging a gas material dispersed in multiple directions according to light.
• Fig. 2 is a craft that shows the influence of the discharge rate and the nose diameter of the gas material on the physical distribution.
• Fig. 3 is a diagram for explaining the effect of wind on the gas charge supply related to Ming.
• FIG. 5 is a diagram for explaining the results of the cross wind according to Ming.
• FIG. 5 is a diagram for explaining the structure of the edge.
• FIG. 6 is a diagram for explaining the structure of the edge.
• Fig. 7 is a diagram for explaining the supply of the gas material used for the analysis related to the light and the feed of the food provided there.
• Fig. 8 is a diagram showing the results of the analysis of the degree of air intake related to Ming.
• Fig. 9 is a diagram showing the results of the analysis.
• 20 is a diagram showing the analysis results of the gas according to the present invention according to Ming, and 2 is a diagram showing the gas speed according to Ming.
• FIG. 22 is a diagram for explaining an example of a crosswind measure relating to Ming.
• FIG. 23 is a diagram for explaining another example of a crosswind measure relating to Ming.
• FIG. 24 is a diagram for explaining another example of a crosswind measure according to Ming.
• FIG. 25 is a diagram for explaining another example of the crosswind measure according to Ming.
• FIG. 26 is a diagram for explaining another example of a crosswind measure relating to Ming.
• FIG. 27 is a diagram for explaining the gas charge supply process according to Ming.
• 28 is a graph showing the effect of gas injection (29), and 29 is a graph that explains the effects of the gas injection on the burning and burning characteristics.
• FIG. 30 is a diagram illustrating a method for obtaining the blast furnace gas field.
• 3 is a graph showing the degree of metagas.
• FIG. 32 is a diagram for explaining the relationship between gas temperature and temperature in the atmosphere.
• Fig. 33 is a diagram showing the relationship between the result of injecting the diluent and the gas type.
• 34 is a graph showing the relationship between the degree of gas, the degree of yield, the yield, the time, and the production when the ignited pregas is blown.
• FIG. 35 is a diagram for explanation.
• Reference numeral 38 denotes () which shows the influence of the position on the combustion state.
• No. 40 is a comparison of the combustion situation in the experiment using quartz glass with a conventional gas pipeline.
• Figure 4 shows the degree distribution of quartz glass.
• 49 is a mercury mark with no mercury insertion, and 5 with a mercury meter.
• 5a and b are schematics showing the behavior when using cousin and using cousin.
• Fig. 5 shows the change of the fabric when diluted gas material is blown.
• the process is a process in which a material containing powdered stone is placed on a moving pad to form a baking material on the floor. This is the process of igniting the surface using ignition.
• the gas is supplied to the air in the upper atmosphere and is released to obtain a material with a burn-up or lower.
• the above-mentioned material and air are sucked into the air by the Indobok attractive force placed under the hood, and the material is combusted at the same time, and at the same time, the air sucked into the In this process, the material is baked to produce cake.
• the gas material in the row direction is loaded at high speed into the atmosphere, mixed with air to make a material with a degree of burn-up or less, and the above material is obtained. It is characterized by having a charge supply device.
• a multi-material supply type is provided along the direction of the tank, and there is a gas discharge outlet or an opening or a gas having a structure with an opening.
• the amount of gas charge in the tank can be controlled by providing a flow control means in the above-mentioned charge supply, for example, the gas charge supply ipno.
• the sidewalk facing the side is affected by crosswinds, and there is a high risk that the supplied gas will be flown in the direction of the machine or leak into the side, resulting in a loss of gas. It is preferable that the fee is high.
• the city gas containing hydrogen content is advantageous in that the discharge speed can be delayed compared to C containing hydrogen content 59 C.
• city gas does not contain water, it is safe to cause gas poisoning. is there. Therefore, from the viewpoint of ensuring safety, it can be said that city gas has favorable characteristics when used as a gas fee. The same can be said for gas.
• c can also be used as a gas material, but in that case, it is necessary to increase the gas discharge speed and to take measures separately. 2
• Figure 3 shows the results of evaluating loss due to the supply of gas charges.
• the gas such as city gas C gas is diluted as it is by enclosing the surrounding air () and sucked into the air.
• the gas such as city gas C gas is diluted as it is by enclosing the surrounding air () and sucked into the air.
• it is a so-called “Pux” type that mixes with gas and dilutes it to a predetermined degree and feeds it to the top and sucks it into ().
• the formula there is a possibility that it will cause when a difference in concentration occurs, while in the direct formula, uneven concentration occurs when the gas material is mixed with the surrounding gas and released. Therefore, the possibility of abnormal burning is greater than that of the equation, but when comprehensive evaluation is performed including equipment, only city gas is the most advantageous.
• the above-mentioned charge supply device allows the gas charge to be discharged into the atmosphere at a high speed, so that it is mixed with the atmosphere in a short time, diluted to a degree below the burnup of the charge, The reasons why it is necessary to introduce the fee into the equipment are described below.
• Fig. 7 is a diagram for explaining an experiment for adjusting the effect of the supply of cake materials.
• the speed at which the material is ejected from the nozzle outlet of the slit nozzle provided in the gas material supply type of the gas material supply device is preferably high-speed from the viewpoint of preventing.
• the gas is diluted to be below the burnup level, but in the industry, there are cases where there is combustion or formation in the tank.
• the gas fee is supplied on the side. Therefore, when the gas material supplied from the gas material supply device is ignited by any kind, the gas material discharged from the gas or the like causes a slow flow rate, causing the gas material supply device or material supply. There is a risk of explosion and burning in the pipe.
• the gas material is discharged at a rate of 2 or more of the burn-up rate of the material, and more preferably, the rate of the material. 2 or more.
• the rate of the material is discharged at a rate of 2 or more of the burn-up rate of the material, and more preferably, the rate of the material. 2 or more.
• the outlets 2 and 3 with a diameter of 9 A were processed into a 9 A pipe, G was supplied to this pipe, the outlets were ejected, and the outlets were ignited using ignition. Blow-out occurs when pulled apart.
• the output speed was controlled by changing the head of G.
• the opening diameter must be at least 3 in order to prevent blowout. I liked it.
• the gas material is discharged at a rate higher than the burn-up rate, it cannot be prevented at the outlet, but it cannot prevent () at the low-speed part of the flow. Therefore, in order to stop the smoldering, the gas from the outlet is faster than the speed at which the blow-off elephant occurs. It was decided to erupt. In order to cause the disappearing phenomenon, it is preferable to eject the gas material at a high speed by setting the gas outlet to a full opening diameter of 3, for example, the opening diameter is higher than 70 s.
• the aperture is at a high speed of 5 s above 0 s and the aperture diameter is 2 s over 30 s. It is also preferable that the aperture is in the range of 0.5 to 5 in the case where the light is actually applied. At 0.5, it is difficult to drill holes in the pipe, and it is likely to occur because it is contained in the gas. On the other hand, in order to ensure the safety, it is preferable to use a lower output speed.
• the exit shape has been described and the size of the exit has been described.
• the exit is not particularly limited to a circle as long as it has the same shape. Even things.
• the opening diameter is 300 to 70 DS, and when it is discharged from the 5 hole, it can be discharged at 7 s, and blowout can be caused.
• the charge is set to less than 30400 with respect to the pressure, the opening of the charge or the ambient pressure.
• the gas material is released downward (directly below) and the part is reflected off the mounting surface.
• a method of promoting the interpretation by emitting the gas charge toward () and reflecting it.
• the gas outlet slit, opening or nozzle provided on the gas material supply type is distributed toward the surface and dispersed in multiple directions within a range of 90 degrees to the vertical direction. How to promote.
• a method of rotating around the gas supply axis and swinging the discharge direction In addition, it is preferable that the above-mentioned charge at the charge supply device is 30O above the surface.
• Fig. 2 shows the results of measuring the expansion of methane when the diameter of the gas is 22 2 and no methane gas (00) is changed in the range of a flow velocity of 20 300 s and is emitted in the direction immediately below. The spread of metagas at positions 0 ⁇ 2, O 4, 0 ⁇ 6 and 0 ⁇ 8 is shown.
• the discharge rate is lower because the gas material to be discharged promotes the interaction with the surrounding air. Furthermore, depending on what species 20 If the gas charge supplied from the gas charge supply device is ignited, the speed of the generated gas charge will be slow, and there is a risk of explosion and burning in the gas charge supply device or charge supply type. In order to avoid this steepness, it is preferable to emit at a rate of 2 or more of the burnup of the gas material used. More preferred is a rate of 2 or more at that rate.
• the metagas, 0 ⁇ 4 s,, 4 S is a rate of 2 or more at that rate.
• the gas supplied to the atmosphere by the material supply device is diluted, and after being diluted, the amount is usually introduced into the equipment along with the surrounding air by the windbox placed in the air.
• the wind speed increases and the gas is supplied in the direction of the supplied gas.
• Figure 3 shows the results of analyzing the effect of crosswind on the gas material temperature distribution for a wind speed of 2 s 5DS. As a result, if no countermeasures are taken, even if the wind speed is 2 s, the gas charge will be dissipated, and the gas price distribution introduced into will be adversely affected.
• a is the result of installing the 2nd stool.
• the inside is formed inside and the gas charge is generated, and the result cannot be obtained sufficiently.
• the upper part of 2 is composed of a gap 30 material.
• this hood shall have an opening at the top or an appropriate (), and shall have a structure that can take in air. Is preferred.
• the gas material discharged from the gas material supply pipe is mixed with the gas material at the door to obtain a diluent. If the mouth width is 5, the mouth is almost negligible.
• the analysis shows that the installation of the inside of the above-mentioned door has the effect of suppressing the vortex inside the door, and that the 3n to 4 surroundings of the door () are most effective. .
• the above-mentioned material is heat-resistant and has a large deformation and does not damage the surface.
• the gas width for the gas discharge is 5 and the gas is supplied to the gas (in the interval of 50, at intervals of 60, parallel to the gas line direction. , In the upper part, and in the upper part, 0
• the structure was provided with a mouth (calculated for 00800).
• a mouth (calculated for 00800).
• 30 feet for damping the cross wind were provided above the surface of the above-mentioned hood, and that the steel was installed at the end of the hood.
• Figure 8 shows the analysis results for the distribution of gas material. As a result, it is possible to improve the degree distribution of the material by making the upper part of the door and narrowing the part, and the difference between the opening part and the eight part is small, and it can be controlled by .
• Fig. 9 shows the analysis results under pressure, which is small due to the construction of the method, and can be suppressed by the placement. 20 to gas These are the results of the analysis, and if there is any at the end of the gate, the generation of air may occur due to the entry of air.
• No. 2 shows the gas speed, and it can be seen that the slope is suppressed by the fact that the door is inclined.
• FIG. 22 shows an example.
• a door having an opening on the upper side is installed in the gas chamber, a stopper 30 is installed in the gas chamber, and a gap of the dot is installed at the end of the door.
• 23 is the above 22 and shows an example of installing along the air supply type in the door.
• 2 is an example in which the direction of 23 above is opened and is installed as it. It is preferable to change the above.
• 25 is an example in which the door of 24 is completely opened and only is installed on the upper side.
• the above-mentioned material as a gas material in which the degree of combustion contained in the combustible gas is diluted to 75 at a temperature in the atmosphere, and more preferably 6% of the degree of combustion. More preferably, it is diluted to 25 degrees below the burnup.
• the reason for using combustible gas diluted below 75 degrees is as follows.
• the gas in the upper part may sometimes cause explosive firing, and at least, it is necessary to make it ignited even if there is a fire.
• the concentration is diluted and burned up.
• the temperature is less than 2, the heat generated by combustion is not good enough to improve the yield.
• the diluting agent should be supplied in a state where the combustion level is at least 5 and preferably 2O and more preferably 3 This is preferred.
• the dilution is supplied at a stage where the above-mentioned ⁇ only is 5 above, preferably 2O, more preferably 3 above, only the combustion ⁇ only is large, and the high temperature holding time can be extended, I can get the degree.
• transparent quartz can be used. This is an effective means for setting the diluent.
• the dilution layer and the combustion front are lowered to the surface layer, and the combustion is 0 ° above the surface layer, preferably 2 O up and down, that is, the region of In other words, it is preferable to supply so that the cake () generated in the layer of dilution passes through without burning, and burns when the combustion front rises 5 from the surface layer. If the combustion front is 0 ° above and below the surface layer, the effect of cooling by the air that passes through is reduced, and only the combustion can be increased. In addition, at a position 20 degrees above and below the surface layer, the cooling effect of air is eliminated and only combustion and expansion can be expanded to 3. In addition, it is more preferable to use a dilution fee and a low-yield cut side wall.
• the gas supply amount is 050 0 3
• the production amount is approximately 5 days
• the captain is 9, the installation of 5 drops of ignition Preferred to place in.
• the diluent (layer is ignited in the row direction, the position where the so-called combustion front after the formation of the cake has progressed to the surface (for example, on the surface O, preferably 20 O). It is preferable to perform the operation at any time until it is completed, as described above. This means that the charging starts at the stage when the combustion front shifts to. As a result, it starts in the gas charge and gradually moves to the lower layer, which means that there is no risk of explosion and safe work is possible.
• the supply of the gas charge is likely to occur during the holding), so that sufficient quality can be provided, and the quality of this portion can be improved. Furthermore, if the use of the diluent is reduced to the specified range, recombustion due to the diluent is formed on the original combustion zone, resulting in a lower width of the combustion. Since it is possible to achieve the length of the high temperature holding without increasing the maximum temperature, it is possible to achieve a sufficient reduction in the temperature. As a result, the improvement of the quality of the equipment is brought about, and the product is also raised in the productivity.
• the combustion () line gradually expands downward () with the movement of the soot, and the position of the combustion changes as shown in FIG. 4 a).
• the upper layer, not the upper layer, the lower layer, and the lower layer, which are subjected to the following steps, are greatly different in the high temperature retention (time for 2).
• the position stay in the grid shows a distribution as shown in 4c).
• the yield is high in the low, middle and lower layers of the surface layer (). Therefore, if the material is supplied in accordance with the law, only the combustion / up / down direction and the width in the row direction are expanded, and this is reflected on the product. In addition, the yield can be further increased because the middle and lower layers, which have a high yield, and the high temperature holding time can be controlled.
• the () in the middle material is for controlling the degree of the product. In other words, it is to improve the degree to which the diluent is originally supplied, and to increase the degree of gas, and to maintain the high temperature, which is the time during which the gas and fuel stay in combustion.
• the Yatter Index 1 is set to 75 85 degrees, preferably 80 degrees, more preferably 90 degrees. This can be achieved at low cost by adjusting the price, supply amount, supply and range in a clear manner under the condition that the preferred amount is kept constant. .
• the productivity of the airflow resistance is reduced, but in the meantime, the problem is solved by controlling the maximum temperature and the high temperature holding time. And improve the degree.
• the S value produced by is more than the value obtained by the experiment.
• the gas charge supply (, number, (furnace), etc.) and gas level are preferably adjusted according to ( Not only in the horizontal direction), but also in the high temperature and the high temperature holding period, thereby controlling the degree of scratches generated on the surface.
• These materials contain a component, and these materials are discharged into the air at high speed, mixed with air, and supplied () as a material of less than 75 degrees.
• the degree of gas is higher than the degree of the bed layer.
• Other vaporized hydrocarbon materials can be used. The fees that can be used in the future and their characteristics are shown in 6. Since the gas vaporized and the degree of ignition is higher than the gas gas described above, it burns in the interior of the gas layer higher than the gas layer.
• the degree of ignition is 50, and the result is large.
• waste oil may contain flammable components and flammable components, so it is not preferred for obvious use.
• Pre-charge for ingredients containing temperature and fire point components may contain flammable components and flammable components, so it is not preferred for obvious use.
• the raw material layer before the fuel in the raw material pad will not burn, and the raw material will burn. This is because it is not possible to obtain results if the length of time is taken.
• the above-mentioned materials having an O content are used. This is because it is harmful to the human body, and if the gas supplied above is not introduced in its entirety, it may cause human injury if it leaks into. Physically, using city gas 3 gas is not only safer, but it is also preferred from the standpoint of strikes.
• the raw material supply that forms a material that includes a moving pad, a material that includes powdered stone on the pad, and the ignition of the raw material,
• the above box is equipped with a wire box, and the above-mentioned material supply device for supplying the gas material to the air and introducing it as a material having a combustion degree or less is arranged above. .
• Pipes for supplying gas or gas are arranged in plural, preferably 3 to 5, parallel to the row direction or in a straight direction.
• Each of the tubes is preferably composed of a stool for supplying gas charges to the atmosphere at a high speed, or a tube attached to it.
• the fuel supply is ignited by a shift in the running direction in the process of combustion by the ignition.
• the number of ignitions and the number of the combustion fronts are insignificant after the progress to the surface, and the size and number can be determined from the viewpoint of adjusting the degree of the target product. . In addition, it is preferable to distribute this fee in the side wall section. , Burning degree 7 5 Lower 2 30 It is preferable to use a combustible gas diluted to a concentration above 60 or less than 2 or above 25 or less than 25.
• the charge supply 2 consists of a plurality of charge supply types along the direction of the tank, which includes a plurality of nozzles that release the gas charge into the air at high speed in the downward direction. It is made by covering the top of the side window. The material supplied from the material supply 2 is mixed with the surrounding air to become a material, and the cake generated from the upper layer to the lower layer by using the attractive force of the lower box 8 After that, () is entered. Note that this charge supply 2 is notably (4 c) 6
• Gas charges supplied from this charge supply 2 include, for example, blast furnace gas B gas), cous gas (C gas), blast furnace gas cox gas gas (gas), city gas, natural gas (G) or meta, Tagas, or these gases are used. These may be supplied under an independent piping system separately from the ignition 0, and as the same type of ignition pipe, the ignition 0 gas
• Fig. 7 shows the amount of various fees used in the course of 75 6 25), the upper limit of the amount of charges.
• the preferred range is as follows. It should be noted that the limit of the diluted gas level, that is, the lower limit of the effect of supplying the gas charge, is 0,05 O of the bun gas.
• Range (2) 7 o to 0 ⁇ 5 O 3 The range 3 3 0 ⁇ 05 O
• N combustion 4 ⁇ 8 O
• N ⁇ 2 is used for 75 diluted diluted 3 ⁇ 6 o 60 diluted gas 2 ⁇ go, and 25 diluted diluted 2 O is used. Therefore, the preferred range is as follows. Note that this is the lower limit where the result of G's fee supply can be realized.
• the blast furnace should be 3 O o on 75 diluted soot, 24 O on 60 diluted soot, and 25 O diluted gas 0 O. Therefore, the preferred range is as follows. Note that the lower limit is 0 or 2 at which the results of blast furnace gas supply can be realized.
• R shows a video observation from a test quartz window, and shows the situation associated with the pre-combustion motion. As shown by 9R, when a gas material containing 5 O exceeding 2 in the test stack and combustion was blown, combustion started immediately on the gas surface, and the result did not reach the layer. On the other hand, according to Ming, the fee
• combustion width could be expanded to 2 or more. This also means that the length of the high temperature holding is achieved.
• ⁇ R is a summary of the above experimental results. If the raw material was blown in properly diluted according to the instructions, the calcination was almost unchanged and the yield increased slightly (29, productivity increased (29
• diluted combustible gas is used as the above-mentioned material to be introduced in, and will be described below for each case.
• the inventors of the present invention introduced a gas material diluted with the above-mentioned steep concentration, immediately after combustion, into the equipment, and further improved safety. As a result of many experiments, it was confirmed that no problems occurred.
• the blast furnace gas burns at a high temperature in the atmosphere, and the combustion limit is 40. , 4 O will not burn. Moreover, it is 7 O. This means that if it exceeds 7 O, the gas content of the blast furnace becomes too rich, and this also results in an unfired state. Below is the basis for this figure. 0
• the ratio of (Into gas) (Gas) for the () minute combination is 20 3 ⁇ 5 5 ⁇ 7. Therefore, the portion of the C-line intersecting 5 ⁇ 7, which shows the gas (gas) ratio, was determined. 32 O
• the upper limit is 44 O and the upper limit is 74 O.
• the blast furnace including the minute can be expressed by the lower equation of 3. Further, if the above () 2) is applied, the upper limit can be obtained. Thus, the upper limit of the blast furnace gas and the upper limit of combustion are obtained. be able to.
• the combustion field has temperature, although focusing on the gas charge. (In the Japan Federation of Fee Associations, if the temperature is high and the temperature is high, the heat dissipation slows down, so the heat generation and the dissipation of the heat dissipation deepen and explode.) Explains. In other words, although combustion is achieved as described above, the temperature is at the boundary, and fuel (as described in the Japan Federation of Fee Associations) shows an example of the effect of the surroundings of metagas. Plotting this as a burnup will give you a rough indication of the methane gas described in.
• the 32 indicates the relationship between the temperature of the gas and the gas in the atmosphere. Although it can be done as described above, For example, the direction of this is normal temperature (in which the combustion degree is approximately 40 O, it is 26 to 27 in the 20 region.
• the amount of gas charge to be supplied to is much lower than at normal temperature and is safer, even if the gas is enclosed. It can be seen that the gas charge in the direction of only the gas can be adjusted.
• the gas charge has a temperature in this way.
• the temperature of the combustion atmosphere increases as the temperature of the combustion atmosphere becomes higher, but it is clearly shown in the case of electricity in the country. It was also understood that it did not burn at the gas charge.
• Indobok which is supplied to the material, and burned because of the combustion produced by the product. If the amount of the charge and the layer is made constant, the amount of cake can be adjusted () by controlling the above-mentioned rate and supply amount.
• the adjustment of the dilution rate means controlling the firing of this material to occur at the intended position.
• the diluent is not injected, it will be cus 5a SS, while if the diluent is blown, cus 0 ⁇ a S will be blown to make the amount constant.
• the reason for the improvement in the degree of yatter and product in the dilution example was that the combustion condition was the main reason. This is due to the length of time during which the high temperature is maintained.
• the positive effect is 0 ⁇ O in Pugas, preferably 0 ⁇ 2O. If this result is calculated by using C as the injection, C produces an effect at 0 ⁇ 24 O, preferably 0 ⁇ 5 O, and a clear improvement 0 O. Therefore, in Pugas, it is at least 0 ⁇ 05 5 O, preferably 0 ⁇ O, and more preferably 0 ⁇ 2 O. On the other hand, in C, it is at least 0 ⁇ 2 O, preferably 0 ⁇ 5 O, more preferably •, and the upper limit is 75 of burnup.
• the gas is adjusted by supplying the gas fee, and the value is adjusted to 200 degrees.
• the inventors dilute the cous gas (C gas) 2 times, and place the diluent 0 0o from the surface, 2
• the experiment was carried out by changing the position of 30 and 300 400, and the results are shown in FIG.
• 20 on the axis of 38 means that when moving to the 0O position from the bright () burning / surface, feeding starts from the top of the test until it reaches the 20O position.
• the diluent was blown and burned, and the result of observing the state of the state (combustion, bright ()) is shown vertically.
• the combustion was performed by supplying a diluent from the stage where the combustion / 20O position was reached until it reached 3O, and
• 3 4 O shows an example in which a diluent is supplied and burned until reaching 40 0 after reaching the combustion / 30 0 position.
• the state of combustion and combustion was investigated even when only the diluent was used. Since the test gas flows from the top to the bottom in the same way as in normal business, gas is supplied to the gas at a predetermined concentration.
• the diluent when the diluent is supplied in the range of 0 to 20 from the combustion / surface, the amount is not as large as before. On the other hand, when the diluent is supplied in the combustion / 20 to 30O region, only the combustion is increased more than before, and the difference in the 300 to 400 region is also more accurate. Change.
• the gas charge in the area below 2 O can be greatly improved by the supply of the gas charge. As a result, the product as a whole can be improved. Therefore, the physical strike can be reduced.
• FIG. 3 schematically shows the situation of the lower and lower layers from the surface up to 2 o.
• the arrow shown in this figure is the row direction of
• 39 a) shows the placement of the cous gas charge in the upper layer (up to 20O).
• the gas material burned in this area is close to each other, so that it is described on the side.
• kus () is split.
• the gas material that burns is regarded as non-tagged.
• the high retention (0 O.C) between Becomes narrow like. In other words, the distribution is such that the portion indicated by the hatching is expanded without any problem.
• Fig. 39 () shows the case where the gas material is supplied to the middle and lower layers.In the lower layer, the combustion expands as the combustion moves downward from the upper layer. It will burn at a position farther away. As a result, the temperature distribution shown in Fig. 39) is obtained. , Gas charge
• the synthesized temperature distribution becomes the size distribution of the bottom. ,,.
• the base temperature of the material and the gas material shown in (2) is extended, and the degree of obtaining is improved.
• the fee is preferably 400C 80, more preferably 5 to 70.
• the ignition level is set to 40 ° C, the temperature will not increase, but it will only increase the temperature of the low temperature cloth. This is because the result of the length of time during the high temperature holding is small only by invitation.
• Fig. 4 shows the results of measuring the degree during the process.
• the example shown on the left shows only the case of gas
• the example shown on the right shows the diluted gas (G). Is the case.
• the temperature is higher than 20 (although there are few yellows, the maximum temperature is over 400 (color)).
• G is burning at that part
• the coke is burning at the lower end
• G is burning ( During the upper part), there is a region that is slightly lower.
• the maximum temperature can be controlled by reducing the cousin dose.
• the temperature range is distributed over a wide range, and as a result, the high temperature holding time is lengthened.
• the history of is summarized.
• the maximum temperature is 400, and it is preferable not to exceed 80, but the temperature above 0 can be increased approximately twice.
• the observed two-bit data is due to the first bit (pic) entering the upper part of the box, and the second bit (of the big box is due to the box).
• Curve a shows the relationship between degree and time.
• the dose of cousin is increased.
• the high-temperature holding (0 ) To (0) but the maximum will also rise to about 300 to 0 and cannot be obtained with.
• Fig. 3 shows the combustion situation in a conventional example for cox a S S and, as a clear example, in the case of using only C gas with a cous dose of 4.2 aS S and a degree of 2 ⁇ .
• a combustion situation exceeding zero has occurred.
• the powder dose is limited to 4.2 aS S and only the concentration 2 OC gas is used, it will be 40, which can be reduced to a maximum of 38 C, and at the same time a high temperature holding length is realized. I can do it.
• Figure 6 summarizes the results of various sex tests in these studies. As is apparent from this figure, although the gap is slightly longer due to the diluted push, the yield (1) and production are improved, and () and (are both greatly improved. It was confirmed that the quality of calcination could be improved by optimizing only the diluent, with good production yield.
• the inventors investigated the effects of the cooling of the product due to the introduction of diluted gas material, compared with the conventional (a SS 0, hot air blowing).
• the specified items are (Influence on), Appearance (Influence on degree), ⁇ 5 Below (Influence on).
• A shows the result of investigating the condition of the product phase quantified by powder X. These figures show that the input amount is constant.
• AR shows the result of measuring the weight of the product with no penetration of Pugas
• A shows the result of measurement of the underlay with the mercury meter without the introduction of Pugas. It is. From Fig. 46, it can be seen that the apparent weight increases due to only the diluted purge. This is thought to be due to the fact that the fusion was accelerated as a result of heating from the outside of the granulated particles only by the pregassing, and that the upper atmosphere decreased, and this contributes to the improvement. In addition, it can be seen that the cloth under O ⁇ is increased by blowing Pungas with a constant input. This is due to the decrease in the number of cores, which has a negative impact on the susceptibility, and it is likely that a high level of production will be possible.
• Figure 5 shows the behavior when cousin is used (a) When cousin is used together. As shown in this figure, when using only conventional cous, the cous was heated from the inside, but clearly, the cousin use method also heated the outside of the child due to the gas charge. Therefore, it is presumed that the ore tends to remain and R can be compared to ().
• it affects the yield, promotes the 0-5 diameter diameter gas to reduce its number, and affects the air permeability. It is effective to increase your mood.
• 2 shows the results of grasping the limit box ratio that can maintain the desired degree.
• the above-mentioned cousin is defined as the coupe in which the Yatta (1 is equivalent to the maximum value (73) obtained for the dilute pump gas.
• only the diluted 5 O pump gas is used. Same as the present
• the box ratio that can obtain is reduced by 3 a SS from 20 a SS (20. Also, as shown in 5 (b) c), 74 It can be seen that the box ratios for obtaining and • 86 • are reduced by 3 • 5 a SS from 5 a SS, respectively.
• the amount of cox () was changed to 4 ga SS ⁇ a SS 2 quasi, the upper part of the pan, and the degree of claus
• the diluted cous gas (C gas) was blown into the second level of (air), and (2-7) was performed.
• the test was conducted in the same manner even when the amount of coke () was set to 5 ⁇ 0 a S S and no dilution gas was injected (). In this case, 60O was used for the test, and 40O was laminated with a material containing the above-mentioned cox, and the layer 2O was laminated.
• the C gas dose was 3003).

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