4628results about "Waste heat treatment" patented technology

The invention provides a melting furnace slag quenching dry type granulation and sensible heat recovery generating system and a method using the same and belongs to the technical field of steel metallurgy furnace slag treatment and complementary energy recovery. The melting furnace slag quenching dry type granulation and sensible heat recovery generating system provided by the invention comprisesa slag-receiving device, a high-pressure water-air pulverization furnace slag quenching and granulating device, a furnace slag slow-cooling device, a sensible heat recovery generating device and a waste gas purification treatment device. According to the invention, the melting furnace slag is quenched and granulated by utilizing the high-pressure water-air pulverization device, so that the melting furnace slag is rapidly cooled to be in a glassy state; and then through a water-cooled type vibration grid plate, the melting furnace slag in the glassy state is further subjected to heat exchange with cold air so as to facilitate the subsequent recovery of the sensible heat. By the system provided by the invention, the melting furnace slag is quenched and granulated, and the high-temperature sensible heat resource of the furnace slag is sufficiently recovered and is used for generation on the basis that the water activity quality of the furnace slag is not influenced.

A molten metal rotor receives and retains an end of a molten metal rotor shaft. The rotor shaft has one or more projections at the end received in the rotor. The rotor has an inner cavity, a top surface with an opening leading to the inner cavity, and at least one abutment. The opening includes one or more portions for allowing each projection to pass through the opening and into the inner cavity. The rotor and/or shaft are then rotated so at least one of the outwardly-extending projections is under the top surface of the rotor and is against an abutment. A molten metal pump, rotary degasser scrap melter or other device used in molten metal may utilize a rotor/shaft combination as disclosed herein.

The invention discloses a sintering flue gas desulfurization cycle enrichment methods and device, the described method from the sintering machine take part gas return to the top of sintering machine sealed enclosures within cycle, while complementing sintering machine burning need oxygen, the remaining part of the flue gas discharge after desulfurization. In devices, including dedusting device of flue gases between the chimney and flue, in the road before the desulfurization setup a branch pipeline to connect sintering machine sealed enclosures, in the branches of pipe setup cycle fan and supplement device. This invention due to sintered exhaust gas partly return to the seal trolley of sintering machine to reduce the displacement of gas, thereby reducing the total of dust and exhaust gas, while the SO2 of the sintering process play a enrichment role, to increase desulfurization efficiency, and reduce release total of burning exhaust gas, reducing the processing load of desulfurization device.

A coupling has an opening and a protrusion extending downward from the opening. The protrusion has threads that are preferably positioned outside of the opening. A rotor shaft that connects to the coupling has an internal bore with threads that receives and retains the protrusion, such as by a threaded connection between the two, so the protrusion applies driving force to the shaft.

PCT No. PCT/JP95/01916 Sec. 371 Date May 23, 1996 Sec. 102(e) Date May 23, 1996 PCT Filed Sep. 22, 1995 PCT Pub. No. WO96/09496 PCT Pub. Date Mar. 28, 1996With respect to a radiant tube burner to be used for heating a heating furnace or the like, to suppress the generation of NOx accompanying combustion, to make the structure thereof fit for a radiant tube burner equipment, to simplify the control of a fuel supply system and an air supply system, and to prevent the coking. Furthermore, to provide a combustion control scheme appropriate to a radiant tube burner. For these purposes, the present invention placed the respective tips of a fuel nozzle, e.g., pilot burner joint-use nozzle (11), and an air throat (13) in the end of a radiant tube (3) and moreover has a combustion air injection port (33) of the air throat (13) provided to be deviated in contact with or near to the inner circumferential wall surface of the radiant tube (3). In addition, a control device (307) for making a burner burn alternately.

A thermoelectric energy conversion unit includes: a thermoelectric conversion module having plural thermoelectric conversion elements disposed away from each other; a heat receiving member; a cooling member, the cooling member and the heat receiving member holding the thermoelectric conversion module; and a non-oxidizing gas charged in a space formed between the heat receiving member and the cooling member.

The invention relates to a residual heat boiler of a steel ball dedusting type ore heat furnace. The residual heat boiler at least comprises a boiler heated surface, a seal boiler flue gas passage, a furnace top and a furnace bottom ash hopper, wherein the boiler heated surface comprises coil pipe groups; and the seal boiler flue gas passage is formed at the periphery of the boiler heated surface. The residual heat boiler is characterized in that the furnace top is provided with a steel ball spreading device, a steel ball separating and collecting device is arranged under the furnace bottom ash hopper; a circulating type steel ball mechanical transporting device is arranged between the steel ball spreading device and the steel ball separating and collecting device; the circulating type steel ball mechanical transporting device comprises at least one drive wheel, at least three driven wheels, a double-row chain, a horizontal guide rail, a steel ball transporting hopper and a mechanical discharge blocking wheel; the at least one drive wheel and the at least three driven wheels are fixed on a boiler frame, and the steel ball transporting hopper is hung on the double-row chain surrounded between the drive wheels and the driven wheels; and the furnace top is provided with the mechanical discharge blocking wheel capable of turning over the steel ball transporting hopper. The invention has simple mechanism, recycled steel ball, mechanical automation running, low investment and running cost and favorable dedusting effect, and the like, can effectively remove and collect accumulated ash and sticking dust on the residual heat boiler heated surface of the ore heat furnace and greatly develops the energy-conservation and emission-reduction technology of the ore heat furnace smelting industry.

The invention relates to the field of energy recovery utilization and in particular to a molten blast furnace slag sensible heat recovery method and a device; the method is characterized in that: themolten blast furnace slag carries out a first heat recovery in a granulator, and then a second heat recovery is carried out by a vibrated bed, and then a third heat recovery is carried out in a fluidized bed, and the reclaimed heat energy is reutilized or converted in a hot air or power generating way; the realization steps are that: 1) the molten blast furnace slag is arranged in the granulator for granulation; 2) the blast furnace slag granules carry out heat exchange in the vibrated bed; 3) the blast furnace slag granules carry out heat exchange in the fluidized bed; 4) after heat exchangeis carried out, the heat is used for power generation from air or is directly utilized in a hot wind way. The method has the beneficial effects that: the sensible heat of the molten blast furnace slagis utilized respectively in a way of waste heat stream power generation and in a way of blast furnace hot wind, compared with the existing water quenching method, 1.0-1.2t of fresh water can be savedwhen processing 1t of molten slag, and sulfides H2S and SO2 are not produced, and energy equivalent to 47kg of standard coal is saved.

The invention discloses a method for reclaiming zinc oxide in treating zincky powder dust in a rotary hearth furnace. The zincky powder dust, coal and flux are mixed, then are subjected to briquetting and drying, are transported to the rotary hearth furnace and are subjected to direct reduction; zinc in the powder dust is reclaimed from exhaust gas; and a feed block of which zinc is removed is directly reduced through the rotary hearth furnace and is subjected to cooling or briquetting for use. The method has wide applicability to zincky materials, can farthest utilize resource reasonably, has low requirement on the thermal value of fuels, high temperature of flue gas and high zinc extraction rate; and the treated powder dust is changed into direct reduced iron for comprehensive utilization.

The invention provides a waste heat recycling system of an annealing furnace. The waste heat recycling system comprises the annealing furnace, an air heat exchanger, a steam boiler, a hot water boiler, an exhaust fan, a combustion fan and a combustion air pipe. The annealing furnace comprises a heating section and a preheating section, the air heat exchanger is connected with the preheating section, the steam boiler is connected with the air heat exchanger, the hot water boiler is connected with the steam boiler, the exhaust fan is connected with the hot water boiler, the steam boiler is connected with a steam pipeline, the hot water boiler is connected with a hot water pipeline, the combustion fan is connected with the air heat exchanger, the combustion air pipe comprises a main pipe and a plurality of branch pipes communicated with the main pipe, one end of the main pipe is connected with the air heat exchanger, the branch pipes are connected with the heating section, and the main pipe is provided with an exhaust pipe and a pipe explosion prevention device. According to the waste heat recycling system of the annealing furnace, waste heat produced in the annealing process can be made full use of, and safety performance of the waste heat recycling system can be fully guaranteed.

The invention relates to the physical heat recovery field of solid high temperature materials. The system can be applied in the waste heat recovery of extra-large high-temperature particles such as high-temperature sintering ore and the like and the process is as follows: the high-temperature sintering ore from a sintering machine falls into a cold sinter furnace through a feeding system, gradually falls with ore discharge and enters a cooling section to radiate heat. The cooled sintering ore enters a vibrator feeder discharging system through a blanking hopper and a regulating gate. The process can be adopted to cool the sintering ore from about 700-800 DEG C to about 100 DEG C. Cold air provided by an air blower enters the cold sinter furnace through an air inlet and a blast cap, absorbs heat in the cooling section and then enters an annular channel, the high-temperature gas from the annular channel enters a waste heat boiler through a dust remover, the heat is transferred to a working medium and then pumped by the draft fan through the dust remover, and the gas is discharged in a chimney when reaching the dedusting standard. The heat-absorbing working medium (usually water) is converted to superheated steam with a certain parameter in the waste heat boiler to do work in a turbine and drive a generator to generate power. Dead steam after doing work enters a condenser and is sent back to the waste heat boiler through a circulating water pump, thus, a thermal cycle is completed.

The invention discloses a method for recovering and utilizing waste heat from low-temperature flue gas. An air-water heat exchanger (4) is connected in series or in parallel in the flue at the rear of the induced draft fan or booster fan (3) of the existing boiler or kiln (1). The inlet port of the hot side of the air-water heat exchanger is connected with the induced draft fan or booster fan (3), the outlet port of the hot side is connected with the desulfurization absorption tower (8) or the chimney (9), and the inlet port of the cold side is circulated with the heat user The outlet pipe or condensate pipe of the water or boiler softened water system is connected, the cold side outlet is connected with the hot user circulating water supply or the boiler feed water pump, and a waterway is connected between the hot side outlet pipe and the cold side inlet pipe of the air-water heat exchanger A bypass pipe, and a waterway bypass regulating valve (5) is arranged on the pipe; a flue gas bypass pipe between the induced draft fan or booster fan and the desulfurization absorption tower (8), and a flue gas bypass pipe A flue bypass regulating valve (6) is arranged on it. By connecting a gas-water heat exchanger in series or in parallel in the flue behind the induced draft fan of the boiler or kiln, the purpose of saving heat energy can be achieved.

The invention provides a selective sintering-machine flue-gas heat exchange and denitration system and a method thereof. The selective sintering-machine flue-gas heat exchange and denitration system comprises a sintering machine (20), a primary heat exchanger (7), a second heat exchanger (8), a denitration device (9), a main dust remover (12) and a desulphurization device (13), wherein a high nitrogen oxide wind box (1) of the sintering machine (20) is sequentially communicated with the primary heat exchanger (7), the denitration device (9), the main dust remover (12) and the desulphurization device (13), and a high-temperature wind box (2) of the sintering machine (20) is communicated with the main dust remover (12) through the primary heat exchanger (7). According to the method, waste heat of high temperature flue gas of the sintering machine and sintered ore cooling equipment is utilized, and heating and temperature increasing of NOx flue gas can be achieved without any external heating source. By the adoption of the system and the method, denitration efficiency of the selected flue gas reaches up to 80%-90%, and therefore NOx emission of the flue gas in the whole sintering machine is superior to a national standard under low investment and operating costs.

The invention relates to an emission reduction process by sintering flue gas sulfur dioxide; the flue gas is collected by sections depending on difference sintering zones; the sintering zones include a high SO2 zone and other zones; in the high SO2 zone, the emission of SO2 during sintering accounts for 60 percent to 80 percent of the emission of the SO2 in the whole sintering process, and the flue gas during sintering accounts for 50 percent to 70 percent of the flue gas in the whole sintering process; the flue gas produced in the high SO2 zone is collected, dedusted, desulfurized, denitrated and emitted from a chimney; in a sintering machine, after being collected, the flue gas in other zones is dedusted and emitted from the chimney, or circulated to the sintering machine to be sintered in hot air. The process can reduce the flue gas treatment in flue gas desulfurization, reduces the treated flue gas by 25 percent to 50 percent, so that the concentration of the SO2 in the treated flue gas is two to four times improved; compared with conventional processes, the process can keep the sintering mineral quality basically unchanged, but can improve the desulfurization rate of the flue gas desulfurizing device, and reduce the equipment investment and operation cost of the sintered flue gas desulfurizing device.

The invention relates to a sinter waste-heat utilization process based on the purification of a sintering flue gas. The process solves the problems that the sinter waste-heat utilization ratio is low, the operating cost and investment cost on purification of the sintering flue gas are high, and ammonia escape occurs in ammonia process of desulfurization and the like. The technical scheme provided by the invention comprises the steps of obtaining desulfurated flue gas at 50-60 DEG C led by a sintering machine after dust extraction and ammonia process of desulfurization; carrying out direct heat exchange for sintering at 800-900 DEG C led by the sintering machine with the desulfurated flue gas in a sinter cooling device; detecting the desulfurated flue gas which is heated to be higher than 380 DEG C after heat exchange; if the oxynitride content is lower than the emission standard, discharging the desulfurated flue gas as a purified flue gas; if not, discharging the purified flue gas after SCR denitration; and sending the sinter after heat exchange and temperature reduction in the sinter cooling device to the next step. The sinter waste-heat utilization process based on purification of the sintering flue gas provided by the invention is simple in process, low in device investment and operating cost, high in sinter waste-heat utilization ratio and good in purifying effect of sinter flue gas, and ammonia escape is thoroughly solved.

The invention provides a wet desulfuration and dust-removing technology of sintered flue gas. After the pressure is boosted, the sintered flue gas is firstly processed cooling and defluorination, enabling the HF in the flue gas to be collected by alkaline solution and the temperature of the flue gas to be reduced below 80 DEG C, and then the flue gas enters a highly-effective desulfuration absorption tower. The flue gas is rotatablely punched into a slurry pool with high speed by the function of a rotary current device installed inside a projecting tube arranged inside the tower, and then the flue gas is crushed in the slurry and is fully mixed with the slurry, consequently the process of desulfuration and dust-removing is finished. The pure flue gas after being demisted is discharged from a chimney after being heated by the sintered steam. Above 95% desulfuration efficiency and 99% dust-removing efficiency can be realized by the desulfuration and dust-removing technology. The arrangement of a cooling defluorinated device ensures the hot safety property of the absorption tower and reduces the corrosive degree of the inner tower. The highly-effective desulfuration absorption tower is not provided with a slurry circulation pump, and no moving member is installed inside tower, thereby the contacting effect of gas and liquid is perfect. The reheating method by the sintered steam saves the normal GGH, increases the stability of the systematic operation, and reduces the systematic fabrication cost.

The present invention provides an alternate changeover regenerative burner system suitable for use as a heat source for an industrial furnace and the like where re-increase in temperature is relatively-often carried out; an alternate changeover regenerative burner constituted by a burner 2 having a regenerator 7 and air supply/exhaust switching mechanisms 12 and 13 for switching connection with an air supply system 17 and an exhaust system 16 of the burner 2 is regarded as a module unit; and three or more units of the alternate changeover regenerative burner constitute a combustion system 1; a ratio of the number of the burners 2 performing combustion and the number of the burners 2 being stopped is variable; and combustion is controlled in such a manner that all the units sequentially repeat alternate regenerative combustion with the units forming no fixed pairs. According to the present invention, a flow velocity of air injected from a burner throat can be variable irrespective of a quantity of combustion; the flow velocity of air emitted from the burner throat can be maintained high even if the operation is carried out with a quantity of combustion lower than the burner capacity; and a non-stationary flame can be formed in a wider range.

The invention discloses an afterheat recovery system and an afterheat recovery method of dry granulating liquid slag. The system comprises a granulating cabin, a moving bed and an afterheat recovery system, the inner surface of the granulating cabin is provided with a granulating cabin water cooling wall, the center of the top of the granulating cabin is provided with a slag pipe, the slag pipe extends into the granulating cabin, the lower part of the tail end of the slag pipe is provided with a centrifugal granulator, the centrifugal granulator is connected with a motor arranged at the lower part of the centrifugal granulator, the lateral side of the centrifugal granulator is provided with an air supply pipeline, an annular air opening is formed between the centrifugal granulator and the air supply pipeline, the lower part of the granulating cabin is provided with the moving bed, the inner surface of the moving bed is provided with a moving bed water cooling wall, the top of the moving bed is provided with an air outlet, the bottom of the moving bed is provided with a slag discharge device, an air inlet device is arranged above the slag discharge device, the afterheat recovery system comprises a primary dust remover, an afterheat boiler, a secondary dust remover, an exhaust fan and a chimney which are connected in sequence, and the primary dust remover is connected with the air outlet arranged at the top of the moving bed. The system and the method effectively solve the problems of heat recovery and furnace slag granulation of equipment such as a blast furnace.

Calories of a first mixed gas are predicted by calculations based on the mixed flow rate of a blast furnace gas and the mixed flow rate of a converter gas measured by flow meters, and preset blast furnace gas calories and converter gas calories; the flow rate ratio of the mixed flow rate of a coke oven gas to a gas turbine consumed fuel gas flow rate is calculated based on the predicted calories, set calories, and preset coke oven gas calories; the mixed flow rate required value of the coke oven gas is calculated based on the flow rate ratio and a gas turbine fuel gas requirement signal corresponding to the gas turbine consumed fuel gas flow rate; and the opening of a coke oven gas flow control valve provided in a fuel gas production system is controlled, based on the mixed flow rate required value, to control the mixed flow rate of the coke oven gas.

The invention discloses a system and method for power generating by jointly recovering the waste heat of a flue gas of a sintering machine and an exhaust gas of a cooling machine, belonging to the technical field of power generation by using waste sintering heat of a steel and iron plant. The power generating system comprises a sintering machine flue gas waste heat utilizing system, a cooling machine exhaust gas waste heat utilizing system, a turbine generating system and a relevant auxiliary system, wherein a main waste heat discharging boiler is utilized to recover the waste heat of the flue gas of a high-temperature segment of the tail part of the sintering machine; a cooling machine waste heat boiler is utilized to recover the waste heat of the high-temperature exhaust gas of the cooling machine; and a high-temperature electric butterfly valve is arranged between the high-temperature segment and a low-temperature segment of a large flue positioned on the tail part of the sintering machine to prevent the wind pickup temperature of the flue gas from being reduced because a low-temperature flue gas and a high-temperature flue gas are directly mixed so as to ensure the high-temperature flue gas to enter the main waste heat discharging boiler for waste heat recovery. The system and method effectively utilizes the waste heat resources of the high-temperature flue gas of the machine tail of the sintering machine and a hot gas of the high-temperature segment of the cooling machine, enhances the waste heat recovery and utilization efficiency of a sintering process and increases the power generation capacity of the waste heat power generating system.

The invention discloses an iron mine sintering flue gas segmented circulation method. Sintering flue gas high in O2 content on the tail portion of a sintering machine is circulated to the interior of a head flue cover of a sintering feed surface of the head portion of the sintering machine, flue gas of two to three bellows highest in SO2 content in a bellow on the tail portion of the sintering machine is conveyed to a desulfurization system to be desulfurized, and flue gas in other bellows is circulated to a middle flue cover of a sintering feed surface of the middle portion of the sintering machine. After segmented flue gas circulation is adopted, SO2 will not be accumulated in sintering ore, dust emission is reduced by 20-40%, NOx emission is reduced by 20-40%, dioxin emission is reduced by 50-80%, and CO2 emission is reduced by 20-45%.

A Preheater-Steelmaking Furnace and closed loop Process System for semi-continuous melting of integrally preheated recycled or virgin ferrous charge, by using highly energy efficient combustion process of natural gas combusted by oxygen as the main heat source, after preheating of the cold charge, by fully exploiting thermal energies of the melting process off-gases, in a gas tight, low noise, ecologically friendly PSF with scant CO and drastically reduced CO2 in exhaust gases for semi-continuous, batch self-charging, sealed pairs of eccentrically rotating quasi cylindrical, permeable half drums hoppers creating separate preheating chambers.

A Rotary thermal processor for particulate materials has a rotating drum and a rotating hollow auger. A stationary cylindrical oven with stationary coils surrounds the rotating drum. Hot gas heats a first part of the oven, coil and drum. A rotating hollow auger is heated with hot fluid from the coils. Oven exhaust sweeps evaporated and volatized components of the treated materials to separators and a thermal oxidizer. Cleaned gas from the thermal oxidizer heats a second part of the oven coil and drum and exits a stack. The rotating drum and auger lifts and turns the treated material as it is advanced by the auger.

An apparatus and method for reclaiming contaminated scrap metal, more particularly an improved reverberatory furnace designed for melting scrap. The amount of hydrocarbons volatilized from the melting of contaminated scrap is measured and the fumes are passed into the main hearth for burning. As the amount of fuel value contained within the fumes increases, the amount of fuel provided to the burner is proportionally reduced while the amount of oxygen is kept constant. This will ensure that the amount of fuel and the amount of oxygen present within the furnace is completely burned without excessive free oxygen or unburned fuel building up within the furnace or furnace exhaust. The burner will be operating under lean fuel conditions or under fuel rich conditions such that the flame temperature is lower than at stoichiometric firing, whereby the burners create reduced NOx.

The invention discloses a high-temperature liquid-state slag dry type centrifugation and granulation waste heat recycling system and method. The system comprises a liquid-state slag drainage system, a liquid-state slag buffering system, a liquid-state slag granulation and heat exchange system, a slag particle conveying system and a waste heat recycling system. The liquid-state slag drainage system comprises a slag groove, a baffle and a slag outlet. The liquid-state slag buffering system is composed of one or more independent slag bags. Each slag bag comprises a bag body, a bag cover, a slag discharge pipe, a stopper rod and other structures. The liquid-state slag granulation and heat exchange system is composed of one or more independent granulation and heat exchange modules which are arranged side by side in one or multiple rows. Each granulation and heat exchange module is composed of a granulation bin, a centrifugal granulator, a movable bed and a slag discharge device. The slag particle conveying system comprises a temperature-resistant conveyor belt and a buffering material bin. The waste heat recycling system comprises a primary dust collector, a waste heat boiler, a secondary dust collector, an exhaust draught fan and a chimney which are sequentially connected. By means of the system and the method, granulation and waste heat recycling of liquid-state slag are effectively achieved.

The invention belongs to the residual heat resource recovery and the field of utilization technology in the metallurgical process, particularly to the high efficiency recovery and utilization method of the low temperature residual heat resource based on the cementing process of the energy saving and emission reduction, characterized by recovering the cooling exhaust of the high temperature but also recovering the cooling exhaust, the sintering exhaust of the low temperature. Under the premise for improving the sintering agglomeration technology condition, the robbed residual heat of each grade is in the step utilization. The invention makes full consideration of the organic combination of the residual heat recovery and utilization, overcomes the problems of grave irradiation of the residual heat resource and the single recovery utilization mode and the like, realizes the high efficiency recovery and utilization of the cooling exhaust and the sintering exhaust, which has the advantages of improved sintering technology, high efficiency recovery and utilization of the sintering residual heat resource and reduced atmospheric pollutant and the like.

A method of using nuclear waste material and exploiting heat generated by radioactive decay of said radioactive waste, comprising the steps of incorporating solid nuclear waste into glass, ceramic, or cementitious blocks, covering the blocks in heat absorbing sealed containers, placing the sealed containers in a columnar arrangement in a gas tight containment room, circulating a heat exchange gas around said containers, passing the heated gas through a sealed heat exchanger, and using the heated water for useful work.

A furnace 10 according to the present invention includes a heating unit 1 and a furnace body 2 that can degrease an article 5, containing an organic substance, to be degreased by heating the article 5 with the heating unit 1. The furnace body 2 includes an outlet 21 and an inlet 22. The heating unit 1 includes a first heater 11 and a second heater 12. The furnace further includes a treatment gas-introducing unit 3 for introducing a treatment gas 7 treated with the second heater 12 into the furnace body 2 from the second heater 12 through the inlet 22. The treatment gas 7 is introduced into an internal section 20 of the furnace body from the inlet 22 in such a manner that the treatment gas 7 is circulated through the internal section 20 of the furnace body, the outlet 21, the treatment gas-introducing unit 3, and the inlet 22, whereby the concentration of the gaseous organic decomposition products in the internal section 20 of the furnace body is reduced such that explosion is prevented.

The invention relates to a novel energy-saving emission-reduction sintering machine system and a sintering method. The novel energy-saving emission-reduction sintering machine system comprises a sintering machine room, wherein flue gas circulating systems are arranged on the two side faces of the sintering machine room, sintering flue gas generated by the sintering machine room is discharged through a flue after dedusting and desulfuration, sintered minerals in the sintering machine room are crushed, are cooled, and are screened in a finished product screening room I, a finished product screening room II and a finished product screening room III in sequence to obtain finished product broken particles, the finished product broken particles are conveyed to a finished product storage yard, broken particles which are not screened out in the finished product screening room III enter a burdening room, spraying is carried out minerals prepared in the burdening room through a urine solution spraying device, the minerals are mixed through a primary mixing room and a secondary mixing room in sequence, and the mixed minerals are evenly arranged in the sintering machine room through a mixed material distribution device to be sintered. The novel energy-saving emission-reduction sintering machine system and the sintering method make full use of waste heat, reduce energy consumption of the sintering technology, and remarkably reduce emission of organic pollutants such as NOx and dioxin.

In a furnace such as a glassmelting furnace, a portion of the combustion products formed by combustion of fuel with gaseous oxidant within the furnace are passed through a recuperative or regenerative heat exchanger system to heat a portion of the incoming gaseous oxidant, and a portion of the combustion products are passed instead through a secondary heat exchanger system, wherein the hot combustion products and oxidant which are passed through said first heat exchanger are passed at a heat capacity rate ratio of combustion products to oxidant of less than 1.3.