1735results about "Handling discharged material" patented technology

Industrial cars for holding high-temperature materials, such as flat push hot cars for transporting hot coke and deposits, and associated systems and methods are disclosed herein. In some embodiments, an industrial car can include an at least partially enclosed hot box with a base and sidewalls, and one or more of the base or sidewalls can be covered by surface plates. The surface plates can be arranged in a floating configuration with gaps therebetween, such that the surface plates can move relative to one another and thermally expand without exerting excessive compressive force against adjacent surface plates. In some embodiments, the hot box can also include a roof with a first non-curved member and a second non-curved member abutting the first non-curved member. In some embodiments, the industrial car can include one or more emission ducts to remove dust and exhaust from within and around the industrial car.

The invention discloses a high-temperature ammonia burner based on ammonia catalytic cracking hydrogen production and liquid ammonia atomization combustion and an operation method thereof, high-temperature air generated by a grate cooler is introduced into a catalytic cracking device, heat of the high-temperature air is utilized to promote liquid ammonia gasification, activate a catalyst and promote ammonia catalytic cracking to generate hydrogen, and ammonia, nitrogen and hydrogen mixed gas is formed; the reaction activity of the fuel is improved; medium-temperature air and mixed gas generated by the catalytic cracking device are supplied to the first to fifth gas inlets respectively, stable on-duty flames are formed under the action of a sliding arc, then the mixed gas introduced into the fourth gas inlet is ignited to form main combustion flames, high-temperature and active components generated by the main combustion flames promote liquid ammonia atomization, and the liquid ammonia atomization effect is improved. And the liquid ammonia is ignited to form axial graded flames. According to the invention, ammonia catalytic cracking hydrogen production and high-temperature air are fully utilized, the flame stability and temperature are improved, stable combustion of large-flow liquid ammonia can be maintained, and the problems of low flame temperature, difficult ammonia ignition, unstable combustion and the like are effectively solved.

A lump ore drying and circular cooler coupled near-zero emission method comprises the steps that (1) sinter to be cooled sequentially passes through a high-temperature area, a medium-temperature area and a low-temperature area of a circular cooler to be cooled, and the cooled sinter is discharged from a discharging port of the circular cooler; (2) the lump ore to be dried enters a drying machine to be dried, and the dried lump ore is discharged from a discharging opening of the drying machine; (3) the cooling air enters a high-temperature area of the circular cooler and exchanges heat with the sintered ore in the high-temperature area, and after heat exchange, high-temperature hot air discharged from the high-temperature area is pumped back to the high-temperature area to circularly cool the sintered ore after waste heat utilization; and (4) cooling air entering the medium-low temperature area of the circular cooler continues to cool the sintered ore, mixed hot air discharged from the medium-low temperature area is conveyed to the drying machine to dry lump ore after heat exchange with the sintered ore, and dry air discharged from the drying machine is condensed and then pumped back to the medium-low temperature area to circularly cool the sintered ore. According to the system, lump ore drying and the circular cooler are coupled, and full utilization and near-zero emission of waste gas waste heat of the circular cooler are achieved.

A method includes combusting a fuel stream in a combustion unit in the presence of a first oxygen enriched carbon dioxide stream received from an anode of an electrolyzer to generate a hot flue gas stream comprising carbon dioxide, steam, unconsumed oxygen, NOx and SOx, cooling the hot flue gas stream in a heat exchanger by supplying a water stream to the heat exchanger as a heat transfer medium to generate a cooled flue gas stream effluent, processing the cooled flue gas stream effluent in one or more separation units to generate a carbon dioxide rich gas stream and a carbon dioxide lean gas stream, and passing the carbon dioxide rich gas stream to the anode of the electrolyzer to generate a second oxygen enriched carbon dioxide stream for sending to the combustion unit.

The invention relates to the technical field of energy conservation and carbon reduction in metallurgy, and provides a low-carbon sintering flue gas circulation system and purification process for multi-pollutant collaborative treatment, the low-carbon sintering flue gas circulation system and purification process are used for staged treatment of sintering flue gas, and the low-carbon sintering flue gas circulation system comprises a sintering chamber which is provided with a sintering cavity and a flue gas blowing port; the sintering cavity leads to the high-sulfur air duct or the low-sulfur air duct, and the low-sulfur air duct leads to the flue gas blowing port; and the high-sulfur air duct leads to the first flue gas treatment system. By means of the technical scheme, the problem that in the prior art, energy consumption for treating flue gas generated after sintering of sintering ore is high is solved.

The invention discloses a welding slag ladle for containing copper slag and a design method. The welding slag ladle is suitable for containing, cooling and inverted placing procedures of high-temperature copper slag. The cinder ladle comprises a cylinder body, a ladle bottom, rib plates, trunnions and supporting legs, the cylinder body and the ladle bottom are formed by welding high-temperature-resistant and high-strength rolled plates, the thickness of the cylinder body is 70-100 mm, and the thickness of the ladle bottom is 80-120 mm; setting an inclination angle beta of 11.5-21 degrees relative to the center line of the bus of the cylinder body, and controlling the roughness of the inner wall to be less than or equal to 12.5 microns so as to reduce the separation resistance after the copper slag is cooled; thickness combination, stress distribution, deformation and rib plate arrangement are optimized through structural mechanical simulation, and it is ensured that the structural strength meets the requirements under high temperature and thermal cycle loads; full penetration weld joints are adopted, nondestructive testing is carried out, and the welding reliability is guaranteed; compared with a traditional casting cinder ladle, the mass of the cinder ladle is reduced by 10%-15%, the deslagging efficiency is improved, the service life is prolonged to more than two times of the original service life, and the cinder ladle has the advantages of being light in structure, high in bearing capacity, high in deformation resistance and good in maintainability.

The utility model relates to the technical field of grate coolers, and discloses a grate cooler waste heat recovery system which comprises a machine body, a feeding bin and a star-shaped discharger are arranged on the machine body, an obliquely-arranged grate plate is arranged in the machine body, the left end of the grate plate is higher than the right end of the grate plate, the left end of the grate plate is connected with the machine body in a rotating mode, and a discharging port is formed in the right side wall of the machine body. The top of the machine body is connected with an air outlet pipe; the air outlet pipe is connected with the waste heat recycling box and the cleaning box, and an air blower is connected to the outer side wall of the machine body. A coil pipe is arranged in the waste heat recycling box, the top of the coil pipe is connected with an air outlet pipe, the bottom of the coil pipe extends into the cleaning box, an air outlet branch pipe is arranged at the bottom of the inner side of the cleaning box and connected with an air outlet spray head, and the side wall of the waste heat recycling box is connected with a first water inlet pipe and a first water outlet pipe. The heat recovery efficiency is higher, heat in hot air is in full contact with water, the heat exchange efficiency is effectively improved, and the manufacturing cost is saved.

The utility model discloses a fixed-axis rotary chassis of a circular cooler. Comprising a fixed rotating shaft, spokes, a rotating body, supporting rollers and a driving device. Wherein the fixed rotating shaft is arranged on the base; a rotating part is arranged on the rotating shaft, and spokes are mounted on the peripheral side of the rotating part; a revolving body is mounted on the peripheral side of the spoke; a plurality of supporting rollers are arranged on the lower surface of the rotary body; and the driving device is in transmission connection with the rotary body. The fixed-axis rotary chassis of the circular cooler has the advantages that the structural strength is high, and the work is reliable; the equipment radius is small, and the occupied area is small; and the device has the advantages of few mobile contacts, small abrasion, low later maintenance cost and the like.

The invention provides a petroleum coke drying and calcining system, which belongs to the technical field of tar treatment and comprises a feeding bin, a waste heat rotary drying furnace, a calcining furnace, a slag cooler, a receiving bin and a tail gas incineration chamber connected with the calcining furnace. The green petroleum coke raw material is fed into a waste heat rotary drying furnace to be dried; a drying furnace water vapor outlet, a drying furnace smoke outlet and a drying furnace waste heat tail gas inlet are formed in the waste heat rotary drying furnace; high-temperature tail gas generated by calcining and volatilizing materials in the calcining furnace enters the tail gas incineration chamber through the calcining furnace tail gas volatilization opening, and high-temperature tail gas generated by mixed combustion of the high-temperature tail gas and fuel gas entering the tail gas incineration chamber enters the calcining furnace and reversely flows with the materials in the calcining furnace to calcine the materials in the calcining furnace, so that primary utilization of the tail gas is realized. The high-temperature tail gas is calcined to absorb heat to form low-temperature tail gas, and the low-temperature tail gas enters the waste heat rotary drying furnace to dry materials, so that secondary utilization of the tail gas is realized, and the problems of low integration degree, high production cost and low treatment efficiency are solved.

A flue gas utilization device for a material receiving point of a circular cooler comprises the circular cooler and further comprises a gravity dust collector and a waste heat boiler which are installed at an outlet of an upper cover of the circular cooler, an inlet below the waste heat boiler is connected with the gravity dust collector, a medium outlet above the waste heat boiler is connected with a waste gas pipeline, the waste gas pipeline is communicated with an air bellow of the circular cooler, and a circulating fan is installed on the waste gas pipeline. A steam pipeline of the waste heat boiler communicates with the mixture ore groove so that materials in the mixture ore groove can be heated through steam of the waste heat boiler, and the receiving hopper is installed above the annular cooler and embedded into the annular cooler. The invention provides the flue gas utilization device for the material receiving point of the circular cooler, and the flue gas utilization device for the material receiving point of the circular cooler can be used for effectively treating high-temperature dust and improving the flue gas recycling efficiency, so that not only is the problem of waste heat utilization of high-temperature flue gas solved, but also the environmental protection problem that the discharged flue gas does not reach the standard is solved.

The grate cooler with the efficient heat dissipation effect comprises a machine frame, an installation box body and a cooling mechanism are arranged at the top of the machine frame, the cooling mechanism comprises an installation frame, a sliding rail, a movable grate bed and a ventilation plate, a driving mechanism is arranged on the inner wall of the installation frame, and an adjusting mechanism is arranged on the side wall of the installation box body. The adjusting mechanism comprises a mounting sliding groove, a driving motor, a lead screw, a sliding seat and a mounting cross beam, and a material pulling mechanism is arranged on one side of the mounting cross beam; the material pulling mechanism comprises a motor mounting seat, a speed reducing motor, a driving shaft, a driving block and a material pulling frame; the multiple movable grate beds are driven by the driving mechanism to reciprocate in a staggered mode, clinker can be preliminarily and evenly treated, the clinker is stirred through cooperation of the adjusting mechanism and the stirring mechanism, the clinker can be further evenly treated, the heat dissipation and cooling effects of the grate cooler on the clinker are guaranteed, and the clinker cooling efficiency is improved. The efficiency of clinker heat dissipation and cooling operation is improved, and then the practicability of the grate cooler is improved.

The utility model discloses an efficient waste heat utilization system for a sintering circular cooler. Waste gas outlets of the section I and the section II of the circular cooler are communicated with a waste gas inlet of the waste heat boiler; a waste gas outlet of the waste heat boiler is communicated with an air inlet of the first circulating fan and an I-section air bellow and an II-section air bellow of the circular cooler; air inlets of the first cooling fan and the second cooling fan are communicated with the environment; an air outlet of the first cooling fan is sequentially communicated with waste gas outlets of a V-section air bellow and a III-section air bellow of the circular cooler; an air outlet of the second cooling fan is sequentially communicated with the IV-section air box of the circular cooler, the second circulating fan and the IV-section air box of the circular cooler; and a waste gas outlet of the III-section air bellow of the circular cooler is communicated with a hot air cover of the sintering machine.

The present invention discloses a steel rolling heating furnace, which includes a steel billet heating furnace, a tail gas waste heat recovery device, a heating furnace steel discharging machine and a heating furnace furnace tail. A tail gas waste heat recovery device for recovering the remaining heat of the tail gas is arranged at the front end of the steel billet heating furnace. It is applicable to the technical field of industrial production. When in use, compared with the existing method, hoisting and heating the crude steel billet will cause shaking. Manual operation not only has risks such as scalding, but also has the problem of slow production efficiency. In the present invention, the crude steel billet is pushed into the steel billet heating furnace for heating and temperature raising. After heating for a period of time, cooling water is sprayed on its surface to rapidly reduce the surface temperature of the steel billet, and then the steel billet is pushed into the steel billet heating furnace again. The above steps are repeated until the surface and the inside temperature of the steel billet are the same and reach the predetermined temperature, and then the heated steel billet can be exported through the heating furnace steel discharging machine. This equipment is relatively simple to use, not only more stable during heating, but also has high safety.

Industrial cars for holding high-temperature materials, such as flat push hot cars for transporting hot coke and deposits, and associated systems and methods are disclosed herein. In some embodiments, an industrial car can include an at least partially enclosed hot box with a base and sidewalls, and one or more of the base or sidewalls can be covered by surface plates. The surface plates can be arranged in a floating configuration with gaps therebetween, such that the surface plates can move relative to one another and thermally expand without exerting excessive compressive force against adjacent surface plates. In some embodiments, the hot box can also include a roof with a first non-curved member and a second non-curved member abutting the first non-curved member. In some embodiments, the industrial car can include one or more emission ducts to remove dust and exhaust from within and around the industrial car.

The invention relates to the technical field of steel sintering processes, in particular to a biomass gasification coupling system for a steel sintering process, which comprises a biomass gasification system, a circular cooler waste heat utilization system and a waste heat power generation system, the biomass gasification system comprises a biomass drying system, a raw material conveying belt system, a biomass gasification furnace, a biomass gas heat insulation combustion chamber, a sintered coke powder preparation system and a biomass gas purification system, and the biomass drying system is used for drying biomass raw materials; and the dried biomass raw materials are conveyed to the biomass gasification furnace through the raw material conveying belt system. According to the coupling system for biomass gasification for the steel sintering process and the control method, biomass serves as zero-carbon energy, and biomass charcoal obtained after biomass gasification can replace part of solid fuel to achieve the carbon reduction effect. Meanwhile, the biomass gasified gas can replace a part of coal gas, and the carbon reduction effect can also be achieved.

A novel flue gas recycling system for four cooling sections of a circular cooler comprises the first cooling section, a first cooling fan, a second cooling section, a second cooling fan, a third cooling section, a third cooling fan, the fourth cooling section and a cooling pipeline of the circular cooler. The first cooling section, the second cooling section, the third cooling section and the fourth cooling section are distributed in the circumferential direction and connected into a continuous cooling loop through an overall rotary frame. The first cooling section, the second cooling section and the third cooling section are respectively connected with a first cooling fan, a second cooling fan and a third cooling fan; the fourth cooling section is connected with a cooling pipeline; and the second cooling fan extracts flue gas of the fourth cooling section of the circular cooler through the cooling pipeline and blows the flue gas into the second cooling section of the circular cooler to cool pellets. According to the novel flue gas recycling system for the four cooling sections of the circular cooler, a fourth cooling fan is omitted in the hot air process of the circular cooler, waste gas of the four cooling sections is extracted through a second cooling fan to cool pellets, the flue gas recycling efficiency is improved, and the cost is saved.

The invention discloses a coal gangue distributed homogeneous high-temperature activation calcination method and system, and relates to the technical field of resources and environments, the system comprises a coal gangue powder preparation and feeding system, a coal gangue powder distributed homogeneous high-temperature activation calcination system, a high-temperature powder cooling system, a finished product collection system and a flue gas purification system; the coal gangue powder distributed homogeneous high-temperature activation calcining system comprises a primary cyclone preheating system and a distributed homogeneous high-temperature activation furnace; the air inlet end of the primary cyclone preheating system is communicated with the coal gangue powder preparing and feeding system, the primary cyclone preheating system is communicated with the homogeneous high-temperature activation furnace, materials in the distributed homogeneous high-temperature activation furnace are separated by the gas-solid cyclone separator and then are divided into two parts by the distributor, one part enters the high-temperature powder cooling system, and the other part enters the high-temperature powder cooling system; and the other part returns to the distributed homogeneous high-temperature activation furnace for circulation. According to the method, large-scale treatment of high-temperature activation and calcination of the coal gangue is realized, and the uniformity and controllability of product quality are remarkably improved.

The utility model discloses an automatic material delivery mechanism for a continuous graphitization furnace, and belongs to the technical field of continuous graphitization furnaces. Comprising a cooling section furnace body and a discharging bin furnace body which are communicated with a discharging transition furnace body; a row of material crucibles are vertically arranged in the cooling section furnace body; the bottom of the discharging transition furnace body is connected with a lifting device, and the two sides of the discharging transition furnace body are symmetrically connected with telescopic boat grabbing mechanical arms. The front ends of the symmetrical boat grabbing manipulators are in contact with a second material crucible from the bottom to the top of the cooling section furnace body; a discharging bin gate valve is arranged at the inlet end of the discharging bin furnace body, and a discharging furnace door is arranged at the outlet end of the discharging bin furnace body. The discharging transition furnace body is connected with a telescopic boat pushing mechanical arm, and the boat pushing mechanical arm and the discharging bin furnace body are located on the same horizontal line. According to the utility model, under the condition that the graphitization furnace does not stop working, materials can be discharged from the furnace automatically, so that the shutdown cooling time is shortened, and the production efficiency is greatly improved.

The low-energy-consumption calcining system comprises a preheater, a calcining furnace, a rotary kiln and a multi-stage cyclone cooler which are sequentially connected, the multi-stage cyclone cooler comprises a heat recovery unit and a cooling unit, clinker discharged from the rotary kiln directly enters the multi-stage cyclone cooler to be cooled, and the clinker discharged from the calcining furnace enters the multi-stage cyclone cooler to be cooled. Wherein a discharge port of the heat recovery unit is connected with an air inlet of the cooling unit, an air outlet of the cooling unit is connected with the air inlet of the heat recovery unit through a branch air pipe, a high-temperature fan is arranged between the cooling unit and the heat recovery unit, and clinker is fed into the air pipe between the high-temperature fan and the heat recovery unit. And an air outlet of the heat recovery unit is connected with the calcining furnace through a tertiary air pipe. The device has the functions of calcining, cooling and recovering heat of the kaolin, a high-whiteness kaolin product is obtained, and the energy consumption of the system is reduced at the same time.

The utility model discloses a cement clinker cooling device which comprises a grate cooler body, a second motor is installed on the grate cooler body, a half-tooth gear is installed at the output end of the second motor, two limiting frames are installed on the inner wall of the grate cooler body, springs are connected in the two limiting frames, one ends of the two springs are connected with connecting rods, and the other ends of the two springs are connected with the connecting rods. The bottom ends of the two connecting rods are connected with a bottom frame. After falling onto the conveying device, cement clinker is conveyed to the tail through the conveying device, in the process, a second motor is started to enable a wedge-shaped block to move to guide the cement clinker, the cement clinker is separated through a partition plate and falls from the tail of the wedge-shaped block, gaps exist between the cement clinker so that cold air can be supplied to the cement clinker to evenly cool the cement clinker, and stacking is avoided; and therefore, the cement clinker can be more uniformly cooled when being cooled in the grate cooler, and the cooling efficiency is improved.

To provide a non-oxidation continuous regeneration cooling production line for powdered activated carbon.SOLUTION: There is disclosed a non-oxidation continuous regeneration cooling production line for powdered activated carbon, comprising a regeneration furnace 1, provided with a heating tube in the regeneration furnace and a cooling mechanism 4 at one end of the regeneration furnace, wherein a sealing tube is connected between the regeneration furnace and the regeneration furnace. At the bottoms of the regeneration furnace and the cooling mechanism, there is a base equipped with hydraulic cylinders for controlling the inclination angles of the regeneration furnace and the cooling mechanism, and a cooling control module is loaded on the cooling mechanism. Because the sealing tube is arranged between the regeneration furnace and the cooling mechanism, sealed flexible connection between the regeneration furnace and the cooling mechanism is realized, and it is ensured that the activated carbon in the heating tube is in a sealed state at a high temperature. Thus, oxygen in the external environment can be prevented from entering the heating tube, the carbon loss in the regeneration process of the active carbon is reduced, and the yield of the regenerated carbon powder is improved.SELECTED DRAWING: Figure 1

The embodiment of the invention relates to a production process and device for secondary zinc oxide calcine, and belongs to the technical field of zinc calcine production. According to the production process and device of the secondary zinc oxide calcine, the device comprises a hollow decomposing furnace, the bottom of the decomposing furnace is connected with a rotary kiln, the upper end of the decomposing furnace is connected with a three-way pipe valve, the upper end and the lower end of the decomposing furnace are closed up, a combustor is installed at the lower end of the decomposing furnace, and one end of the three-way pipe valve is connected with a fifth calcining cyclone; the other end of the three-way pipe valve is connected with a carbonization furnace outer pipe, a plurality of carbonization smoke pipes are installed in a smoke pipe of the carbonization furnace, the upper portion of the end, away from the fifth calcining cyclone, of the three-way pipe valve is communicated with the tangent line of the carbonization furnace outer pipe, and the other ends of the carbonization pipes are communicated with the lower end of the decomposing furnace. The device has the effect of reducing the production cost, the flue gas in the process of producing the secondary zinc oxide by the rotary kiln is used as a heat source, and the secondary zinc oxide is calcined by the multi-stage calcining cyclone to obtain the product zinc calcine.

The utility model discloses a carbon calcining furnace discharger which comprises a discharging pipe, a corrugated metal hose is installed at the bottom of the discharging pipe, the bottom of the corrugated metal hose is fixed to a discharging port, an auxiliary discharging mechanism is installed on the outer side of the discharging pipe, and the auxiliary discharging mechanism comprises a rotating shaft, a synchronous wheel, a synchronous belt, a cam and a first motor. The outer side of the discharging pipe is rotationally connected with three rotating shafts, each rotating shaft is provided with a synchronous wheel, the three synchronous wheels are in transmission connection through a synchronous belt, the top of each rotating shaft is fixedly provided with a cam, the first motor is fixed to the outer side of the discharging pipe, and an output shaft of the first motor is connected with the rotating shafts; and an angle adjusting mechanism for driving the discharge port to rotate is mounted on the discharge pipe. Vibration discharging is carried out from the outer side of the discharging pipe, the discharging speed is higher, and blocking is not prone to occurring; and the discharging angle is convenient to adjust, and the discharging angle is convenient to adjust according to requirements.

The present invention discloses a waste heat recovery device for cooling cement clinker, which relates to the field of high-efficiency energy-saving industrial technology. Specifically, it includes a mounting platform and a grate cooler body arranged thereon, and a grate plate is arranged in the grate cooler body. The right end of the grate cooler body is provided with a waste heat recovery box into which materials can be transported through the grate plate. The interior of the waste heat recovery box is provided with a material barrel that can shake. The waste heat recovery device for cooling cement clinker realizes efficient heat transfer by constructing a waste heat recovery structure composed of a grate cooler body, a waste heat recovery box, a material barrel, a material spiral plate and a heat collection spiral groove plate. The grate cooler body cooperates with the grate plate to transport the cement clinker to the waste heat recovery box. The crushing component and the connecting hose guide the cement clinker into the material barrel and fall on the material spiral plate. The vibration motor and the first spring cause the material barrel to vibrate, allowing the cement clinker to move downward along the material spiral plate.

The invention relates to the technical field of magnesium oxide calcination, and particularly discloses a suspension calcination system and method capable of adjusting the activity of light calcined magnesium oxide. Comprising a multi-stage preheater, a suspension calcining furnace connected with the multi-stage preheater, a high-temperature section cyclone cooler which is respectively connected with the multi-stage preheater and the suspension calcining furnace and is used for conveying flue gas subjected to heat exchange to the suspension calcining furnace, and a low-temperature section cyclone cooler connected with the high-temperature section cyclone cooler, a plurality of layers of combustors used for realizing gradient distribution and partitioned combustion of the temperature in the suspension calcining furnace are arranged in the suspension calcining furnace; according to the invention, the distribution valve, the multi-layer combustor and the high-temperature section cyclone cooler are connected with the suspension calcining furnace, the distribution valve is adjusted for distribution circulation, the multi-layer combustor realizes partitioned combustion, and residual air after heat exchange of the high-temperature section cyclone cooler is used for cooperation, so that the activity index of light-burned MgO is adjusted and controlled in stable and continuous production, and the production efficiency is improved. The product quality requirement is met.

The invention relates to a fly ash sintered material with high fly ash mixing amount and a preparation method and application thereof. The method comprises the following steps: uniformly mixing silicon powder, alkali, water and a dispersing agent, and stirring and reacting at 75-95 DEG C for 4-12 hours to obtain a special silicon aggregate solution; uniformly mixing a sintering aid and the waste incineration fly ash to obtain solid powder, and then putting the solid powder and the special silicon aggregate solution into a forming and granulating device for forming and granulating to obtain formed particles; the waste incineration fly ash is calcined for 0.2-1.2 h in high-temperature treatment equipment at the temperature of 600-900 DEG C, the fly ash sintered material is obtained, the mass fraction of the waste incineration fly ash in the fly ash sintered material is 70-85%, and the mass fraction of the sintering aid is 2-5%; according to the method, the high doping amount of the waste incineration fly ash can be achieved in the fly ash sintering heat treatment process, the sintering temperature can be reduced, and the fly ash sintered material with the heavy metal leaching toxicity reaching the standard and the strength reaching the standard can be obtained by conducting low-temperature sintering treatment on the waste incineration fly ash with the high fly ash doping amount.

The utility model relates to the technical field of waste heat recycling, and particularly discloses a waste heat recycling device of a sintering circular cooler, which comprises a dust removal structure and a heat exchange structure connected with the dust removal structure, and the dust removal structure comprises a primary cyclone dust removal assembly and a secondary cyclone dust removal assembly communicated with the top of the primary cyclone dust removal assembly. An air blowing assembly is arranged at the top of the secondary cyclone dust removal assembly; the heat exchange structure comprises a supporting frame, a first heat exchange tank and a second heat exchange tank, wherein the first heat exchange tank and the second heat exchange tank are horizontally installed on the supporting frame. Heat exchange pipe sets are arranged in the first heat exchange tank and the second heat exchange tank. The sintering circular cooler waste heat recovery device achieves efficient dust removal and waste heat recovery of high-temperature waste gas, has the advantages of being simple in structure, convenient to maintain, high in heat exchange efficiency and the like, and is suitable for the field of sintering circular cooler waste heat recovery in steel smelting and other industries.

The utility model discloses a grate cooler air inlet valve port which comprises an air inlet shell, an air inlet and an air outlet are formed in the air inlet shell, a rotary adjusting mechanism used for adjusting the air inlet area is arranged at the air inlet, and the rotary adjusting mechanism comprises air inlet baffles symmetrically arranged relative to the air inlet. The air inlet baffle and the air inlet shell are connected in a rotating fit mode through a rotating rod, and the air inlet area of the air inlet is adjusted by controlling the rotating angle of the air inlet baffle. According to the grate cooler, the mode that the two baffles are synchronously opened and closed is adopted, the air inlet amount can be easily controlled, the working condition of the grate cooler during working is effectively stabilized, it can be guaranteed that the positions of the baffles are stable, installation is convenient, and the problem that a large amount of time is wasted due to the fact that an air adjusting device is independently installed on an existing grate cooler is solved.

The invention discloses an energy-saving low-carbon grate cooler and a using method thereof.The energy-saving low-carbon grate cooler comprises two fixedly-arranged supporting seats, an inertia raising mechanism is installed on the supporting seats, a six-step plate is installed on the inertia raising mechanism, a shell is fixedly connected to the top face of the six-step plate, and six grate plate assemblies are fixedly installed on six steps of the six-step plate; the tail end of the grid plate assembly extends out of the step; the inner wall of the middle of the shell is fixedly connected with a partition plate, and the top face, located above the highest grid plate assembly, of the shell is connected with a kiln head cover. An air pipe is fixedly mounted on the side wall of each step below the six-step plate and is used for supplying cold air to the grid plate assembly; and the bottom of the lowest step of the six-step plate communicates with a discharge port. The invention relates to the technical field of grate coolers. The grate cooler solves the problem that a traditional grate cooler is low in cooling efficiency due to insufficient contact between materials and cold air.

The automatic conveying device for grinding ball production comprises a roller device, the roller device comprises a roller, and the roller can rotate with the axis of the roller as the rotation axis; the spiral conveying pipes are fixed to the inner wall of the roller, grinding ball conveying grooves are formed between adjacent sections of the spiral conveying pipes located on the same side of the roller, air suction hole sets are formed in the side walls of the spiral conveying pipes, and the spiral conveying pipes are heat conduction pipes; the air suction assembly is connected with one end of the spiral conveying pipe and used for sucking an inner cavity of the spiral conveying pipe; and the heat exchange facility is arranged in the spiral conveying pipe, the heat exchange facility can transfer heat to the spiral conveying pipe, and the heat is transferred to the inner cavity of the roller through the spiral conveying pipe, or the heat exchange facility can absorb the heat in the inner cavity of the roller through the spiral conveying pipe. The cooling speed and temperature of the grinding balls can be accurately controlled in the conveying process, quenching node temperature fluctuation caused by environment temperature changes is reduced, and therefore the quality consistency of the grinding balls is improved.