801results about "Handling discharged material" patented technology

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 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.

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.

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 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 invention belongs to the technical field of cement production line transformation, and discloses a method for transforming a cement clinker production line into a coal gangue suspension calcination production line, the cement clinker production line comprises five stages of double-series preheaters and a decomposing furnace, the five stages of double-series preheaters are divided into A-row preheaters and B-row preheaters, a preheater in the column A is transformed into a preheating device of the coal gangue powder suspension calcination production line, a preheater in the column B is transformed into a gas-solid separation cyclone and a cooling device of the coal gangue powder suspension calcination production line, and a pipeline furnace is arranged between an air outlet of a decomposing furnace and an air inlet of the gas-solid separation cyclone. A decomposing furnace and a pipeline furnace are jointly transformed into a coal gangue suspension calcining furnace. According to the method, an obsolete cement clinker production line is transformed into a coal gangue suspension calcining production line with the working procedures of coal gangue grinding, conveying, metering, preheating, calcining, cooling and the like.

The invention provides a kiln head waste heat utilization method and relates to the technical field of cement production, a kiln head waste heat utilization system is used, the kiln head waste heat utilization system comprises a coal mill circulating air unit and a waste heat power generation air circulating unit, and the coal mill circulating air unit is connected between a coal mill system and a grate cooler air collecting box. The waste heat power generation wind circulation unit at least comprises a first waste heat power generation wind sub-circulation unit, and the kiln head waste heat utilization system cancels a coal mill waste gas discharge coal mill chimney; the kiln head waste heat utilization method comprises the following steps that smoke entering a coal mill system passes through a coal mill circulating air unit and then enters a grate cooler air collecting box to be recycled through the coal mill circulating air unit; a part of smoke entering the waste heat boiler enters an air collecting box of the grate cooler for recycling through the first waste heat power generation air sub-circulation unit by means of the first waste heat power generation air sub-circulation unit. The problems of reducing air consumption, reducing waste gas emission and recovering waste heat of waste gas are solved.

The present invention relates to the technical field of alternative fuel in the cement industry. Disclosed is a high-proportion alternative fuel pre-treatment and cement kiln incineration system, comprising a stacking shed, a storage system, a rotary kiln, a pulverized coal burner, a cooler, a tertiary air duct and a preheated raw-material preheater; and further comprising a crushing system, a homogenization system, metering systems, conveying systems, gravity-type feeding systems, a multifunctional decomposition furnace, a special combustor for alternative fuel, and a pneumatic conveying system. In the present invention, the particle size of crushed alternative fuel is controlled on the basis of a flue gas suspension speed, such that the alternative fuel combusts in a suspended manner in the multifunctional decomposition furnace; the alternative fuel is metered by means of the three metering systems, and the alternative fuel in one path is fed into the special combustor; the special combustor and the pulverized coal combustor are arranged one above the other in the rotary kiln, and pulverized coal combustion is used to drive the combustion of the alternative fuel; and the gravity-type feeding systems and their respective two airlock discharge valves, which are alternately opened, are used to feed in the alternative fuel, thereby reducing air leakage during a feeding process.

The invention discloses a process and system for preparing an auxiliary cementing material by calcining granular coal gangue coupled with a cement clinker sintering system, and the process comprises the following steps: treating large undisturbed coal gangue to obtain granular coal gangue, and quantitatively analyzing minerals in the granular coal gangue; feeding the granular coal gangue raw material into an activating calcining kiln for activating and calcining; then feeding into a grate cooler for cooling to obtain calcined activated coal gangue; wherein an activation calcination heat source comes from high-temperature section hot air of a grate cooler and hot air at an outlet of a C4 preheater, the proportion of the high-temperature section hot air, the hot air at the outlet of the C4 preheater and combustion-supporting air is controlled, and temperature and oxygen concentration adjustment at the activation calcination stage is achieved. According to the invention, the system for preparing the auxiliary cementing material by calcining the coal gangue is coupled with the original cement clinker sintering system, so that the on-line doping of the auxiliary cementing material in the cement clinker is realized, and meanwhile, the carbon emission is reduced.

The present application relates to a medium frequency induction heating to forging blanking system, which belongs to the technical field of blanking systems, and includes a slide bracket and a slide rail, wherein the slide rail is tilted and arranged on the slide bracket; further includes a material receiving barrel, a flip drive source and a flip frame, wherein the flip drive source is arranged in the slide bracket, the material receiving barrel is arranged on the flip frame, and the flip drive source is used to drive the flip frame to flip; the driving assembly is used to drive the clamping assembly to move along the X, Y, and Z axes, and the clamping assembly includes a clamping arm, a first clamping block and a second clamping block, wherein the first clamping block is fixed on the clamping arm, the second clamping block is slidably connected to the clamping arm, and the second clamping block moves in a direction toward or away from the first clamping block. The present application has the beneficial effects of improving the consistency of multiple flipping angles during the automatic blanking process of the material blocks, reducing the position deviation generated when multiple material blocks are blanked, reducing the possibility of failure during automatic blanking, improving the smoothness of the blanking process, and thus improving the processing efficiency.

To provide ventilation treatment equipment and a design method of the ventilation treatment equipment that can reduce variation of ventilation or loss of gas when performing ventilation treatment such as aging on granular material of slag.SOLUTION: Ventilation treatment equipment 12 includes partition walls 13a, 13b, and 13c located at least in a part of a boundary portion that defines a range in which granular material 3 is stored, a supply device 5 that supplies gas to the granular material 3 in a specific direction along the partition walls, and a deformable layer 15 deformed by coming into contact with the granular material 3, while located in at least a part in the predetermined direction among the partition walls coming into contact with the granular material 3. The ventilation treatment equipment performs the ventilation treatment of the granular material 3.SELECTED DRAWING: Figure 3

The utility model provides a dry process cement clinker firing device which comprises a preheating mechanism, a decomposing furnace, a material spraying assembly, a rotary kiln and a cooling machine, the preheating mechanism is used for preheating raw materials, the decomposing furnace is connected with the preheating mechanism, the decomposing furnace is used for receiving and decomposing the preheated raw materials, the material spraying assembly is connected with the decomposing furnace, and the rotary kiln is connected with the cooling machine. The material spraying assembly is used for evenly spraying preheated raw materials into the rotary kiln, the rotary kiln is used for calcining the raw materials to form clinker, the rotary kiln sequentially comprises a shell, at least two heat insulation layers and a heat-resistant lining from outside to inside, and the cooling machine is used for cooling the clinker. Due to the fact that the material spraying assembly evenly sprays the preheated raw materials into the rotary kiln, the raw materials can be heated more sufficiently and evenly in the rotary kiln, the calcining process is more thorough, and the clinker quality is further guaranteed. In addition, due to the fact that the rotary kiln comprises at least two heat insulation layers, the heat insulation effect of the rotary kiln is better, and the calcination process is more thorough.

The utility model relates to the technical field of cooling devices of roller slag coolers, in particular to a multi-stage cooling device of a roller slag cooler, which comprises an outer roller, an inner roller is mounted on the inner wall of the outer roller, a left roller cover is mounted on the left side of the outer roller, and a right roller cover is mounted on the right side of the outer roller. A discharging opening is formed in the lower end of the right roller cover, an air cooling connector is installed on the surface of the left roller cover and communicates with a gap between the outer roller and the inner roller, a cooling assembly is installed in the right roller cover, and the cooling assembly comprises a rotating connector. According to the utility model, the cooling assembly is arranged, so that the pipelines for conveying the cooling medium are distributed in a multi-stage manner, and the cooling medium can be quickly discharged after the circulation path of the cooling medium is a circle, so that the problems that the circulation path of the cooling medium is repeated, the cooling effect of the cooling medium in the rear area is reduced, and the cooling of the equipment is unbalanced are solved; and the cooling effect and the balance of the cooling device are further improved.

The invention discloses a flexible transmission structure of a circular cooler. Comprising a flexible base, a driving component is arranged on the flexible base, and a transmission pin gear is arranged on an output shaft of the driving component. Self-adaptive adjustment of the driving component in the radial direction of the rotary body can be achieved, so that tight meshing of the transmission pin gear and the rotary body pin teeth is ensured. The device is high in impact load resistance, reliable in work, compact in structure and convenient to install and maintain.

The utility model relates to the technical field of grate coolers, and provides a grate cooler air inlet structure which comprises a machine body, a supporting plate, a blowing assembly, a conveying pipe and an adjusting assembly, the blowing assembly is arranged on the supporting plate, one end of the conveying pipe is connected with the blowing assembly, and the other end of the conveying pipe penetrates out of the machine body; the adjusting assembly comprises a motor, a rotating pipe, a supporting pipe, a first gear, a second gear, a threaded rod and a limiting rod, the motor, the rotating pipe and the supporting pipe are all arranged on the inner wall of the machine body, the motor drives the first gear to rotate, the first gear is meshed with the second gear, the second gear is arranged on the rotating pipe, and the threaded rod is sleeved with the rotating pipe in a threaded mode; the end, away from the rotating pipe, of the threaded rod is connected with the supporting plate, one end of the limiting rod is connected with the supporting plate, and the other end of the limiting rod is slidably installed in the supporting pipe. By arranging the adjusting mechanism, the distance between the blowing assembly and the clinker on the grate plate can be adjusted according to the size of the clinker, and the cooling efficiency of the clinker is improved.

The utility model relates to the technical field of calcining furnaces, in particular to a microwave heating high-temperature circulating flash calcining furnace, which comprises a cylindrical furnace body, a strong wave-transparent layer arranged on the inner wall of the cylindrical furnace body, a fire-resistant furnace lining arranged on the inner wall of the strong wave-transparent layer, a microwave generator arranged on the periphery of the cylindrical furnace body, and a preheater connected with the upper end of the cylindrical furnace body, a dust removal assembly is arranged above the preheater, and a discharging machine is arranged at the lower end of the cylindrical furnace body and connected with a cooling machine. According to the utility model, the microwave generator is used for calcining magnesite, dolomite, limestone, kaolin, clay, illite and the like, can be used for calcining in a reduction furnace or a vacuum reduction furnace, and is also suitable for high-temperature and ultrahigh-temperature flash sintering high-grade refractory materials; the device has the advantages of low investment cost, small occupied area, high resource utilization rate and the like.

The invention discloses a lepidolite steam fluidization roasting method and system, and belongs to the technical field of treatment methods of lithium-containing minerals. The roasting method provided by the invention comprises the following steps: S1, mixing lepidolite mineral powder with a sulfate auxiliary agent to prepare a roasted raw material, adding a fluorine fixing auxiliary agent, and mixing to prepare a mixture; s2, the mixture and fluidizing gas are subjected to preheating treatment; s3, the preheated mixture and the preheated fluidizing gas are fed into a fluidized bed roasting furnace to be subjected to a fluidized roasting reaction, and roasting clinker, a fluorine fixing auxiliary and thallium-containing tail gas are obtained through separation; and S4, carrying out cyclone preheating and wet defluorination on the thallium-containing tail gas, and reacting the thallium-containing tail gas with metal sulfide to prepare thallium sulfide. The method is environment-friendly and efficient, the lithium smelting slag amount and loss of harmful elements can be remarkably reduced, the utilization rate of lithium resources is increased, and the problem that hydrofluoric acid corrodes equipment in the acid leaching process is solved.

The utility model discloses a material receiving device for an industrial electric furnace, and belongs to the technical field of material receiving of industrial electric furnaces. Comprising a material receiving barrel, a fan set is fixedly connected to one side of the upper end of the material receiving barrel, a rotating block is rotationally connected to the upper portion of the interior of the material receiving barrel, a rotating frame is fixedly connected to the lower end of the rotating block, a heat-resisting adhesive tape is fixedly connected to the lower end face of the rotating frame, and an extrusion strip is fixedly connected to one side of the lower end of the rotating frame. A fixed base is fixedly connected to the lower portion of the interior of the material receiving barrel, air is blown into the material receiving barrel through work of a fan set, the interior of the material receiving barrel is cooled, meanwhile, a heat-resisting rubber strip below a rotating frame rotates to stir materials on a grid plate, the materials are turned over, and therefore all-directional heat dissipation is achieved, the temperature of the materials can be effectively reduced through the heat dissipation mode, and the heat dissipation efficiency is improved. Potential safety hazards possibly brought by the high-temperature materials in the follow-up treatment process are avoided, meanwhile, the quality and performance of the materials are protected, and it is ensured that the materials are stored or further processed at the proper temperature.

The utility model discloses a circular cooler track back-up roll self-lubricating device which comprises a back-up roll self-lubricating assembly, the back-up roll self-lubricating assembly comprises a roll shaft sleeve, the inner wall of the roll shaft sleeve is rotatably connected with a circular cooler track back-up roll, the inner wall of the roll shaft sleeve is provided with a cavity, the outer wall of the top of the roll shaft sleeve is fixedly connected with a feeding pipe, and the outer wall of the top of the feeding pipe is fixedly connected with a discharging pipe. The outer wall of the top of the feeding pipe is in threaded connection with a sealing cover, a self-lubricating cylinder is installed on the inner wall of the roller shaft sleeve, and the outer wall of the self-lubricating cylinder is rotationally connected with the outer wall of the roller shaft sleeve in a matched mode. The graphite powder plays a role in lubricating the outer wall of the circular cooler track supporting roller, and the discharging holes are formed in the inner wall of the self-lubricating cylinder, so that the graphite powder in the cavity is slowly released to the outer wall of the circular cooler track supporting roller, and continuous automatic lubrication is facilitated.

The invention discloses a sintering method and system for recycling sintering ring cooling waste gas, and the method comprises the steps: respectively feeding the ring cooling waste gas into a sintering front-section fan cover, a middle-section fan cover and a rear-section fan cover, and sintering the ring cooling waste gas according to the sintering requirements of the sintering front-section, middle-section and rear-section materials; after oxygen or steam is supplemented to the sintering front-section fan cover, the sintering middle-section fan cover and the sintering rear-section fan cover synchronously, waste heat is utilized, and then oxygen-enriched hot air capable of being directly used for sintering the front-section material surface, oxygen-containing hot air capable of being directly used for sintering the middle-section material surface and steam-enriched hot air capable of being directly used for sintering the rear-section material surface are obtained at the same time; and in the waste heat utilization process, high-parameter steam capable of being directly used for power generation, industrial hot water capable of being used in multiple sources and the like are obtained. According to the invention, waste heat recovery of sintering ring cooling medium-temperature and low-temperature waste gas is realized at low cost and high efficiency, the discharge amount of waste gas is obviously reduced, the sintering working condition is greatly enhanced, and the quality of a sintered ore product is obviously improved.

The present application relates to a rotary kiln cooler with external air chamber, comprising upper bin body, ring beam, central air distributor, chamber air distributor, lower cone bin, discharging cone and air supply pipeline; the rotary kiln cooler uses two different cooling methods to cool materials at different heights; in the upper part of the cooler, a plurality of air distributors embedded in the material layer and adapted to the shape characteristics of the material layer directly supply air to the material layer for pre-cooling; in the lower part of the cooler, the material is divided into multiple streams, and a plurality of air supply chambers are arranged to achieve uniform cooling in multiple regions; the cooler has simple structure, low material cooling temperature, can cool high-temperature materials from about 1100 DEG to more than 30 DEG to 50 DEG above room temperature, and has sufficient cooling, no red material inclusion, high thermal efficiency, and remarkable energy saving and emission reduction effect.

The utility model relates to a snowman sealing device, which relates to the technical field of snowman devices and comprises a material pushing tongue, a castable wall is arranged outside the material pushing tongue, a sheath shell is sleeved outside the material pushing tongue, the sheath shell is fixedly connected with the castable wall, a metal nozzle is fixedly communicated with the outer wall of the sheath shell, and the metal nozzle is fixedly communicated with the metal nozzle. The metal nozzle is fixedly communicated with a high-pressure hose, the high-pressure hose is provided with an electromagnetic valve, a fixing flange is fixedly installed on the outer wall of the sheath shell, a two-layer flange is installed on the fixing flange through hexagon socket screws, and a pressing flange is installed on the two-layer flange through fastening bolts. According to the material pushing device, ash can be blown into equipment to prevent ash leakage, meanwhile, the tongue can be cooled during air blowing, and the temperature of the material pushing tongue is reduced.

To provide a slag aging method with which it is possible to reduce variation in aging of slag by inhibiting variation in grain size and porosity of the slag at locations of a sediment different from each other even when the sediment is formed by stacking slags different in grain size and porosity in an aging processing facility, and with which it is possible to inhibit expansion of a product using the slag after aging.SOLUTION: An aging method for slag stacked in an aging processing facility 1, 10 includes: a calculation step of calculating at least one of a grain size and a porosity by sampling slag from at least two locations of at least one of the slag stacked in the aging processing facility 1, 10 and slag that forms a sediment 3; and an adjustment step of adjusting at least one of a grain size and tightness of the slag at a first location of two locations on the basis of at least one of the grain size and porosity of the slag.SELECTED DRAWING: Figure 4

The utility model discloses a steelmaking continuous casting machine waste heat recycling device which comprises a conveying pipe and a heat exchanger, an annular blocking plate is arranged at the casting blank inlet end of the conveying pipe, a plurality of annular cavities are sequentially formed in the conveying pipe at intervals from the casting blank inlet end to the casting blank outlet end, and each annular cavity is connected with a cold air pipe. A plurality of air nozzles are uniformly distributed on the circumference of the side wall of the side, facing the annular blocking plate, of the annular cavity, cooling cavities are formed between the adjacent annular cavities and between the annular blocking plate and the annular cavities, a plurality of conveying rollers are arranged in the cooling cavities, an exhaust pipe is arranged on the side wall of the side, close to the annular blocking plate, of the cooling cavity, and a heat exchange pipe assembly is arranged in the heat exchanger. The exhaust pipe is communicated with an inlet of the heat exchange pipe assembly, a water supplementing opening is formed in the heat exchanger, an air compressor and a vortex tube which are communicated are arranged on the outer side of the conveying pipe, and a cold air outlet of the vortex tube is communicated with the cold air pipes. In conclusion, the casting device has the advantages of being small in heat loss, high in casting efficiency and high in heat recovery rate.

The utility model relates to the technical field of iron and steel smelting, and provides a material accumulation prevention device of a ring cooling trolley, which comprises the ring cooling trolley, an air pipe assembly and a dust removal assembly, the dust removal assembly comprises a dust cover, and the dust cover is arranged above the ring cooling trolley; the annular cooling trolley is provided with a trolley body, the annular cooling trolley has a cooling mode and a discharging mode, and when the annular cooling trolley is in the discharging mode, the annular cooling trolley walks on the curved surface track; the curved rail comprises a curved rail climbing section, the air pipe assembly is arranged on the curved rail climbing section, a right angle is formed at the front end of the annular cooling trolley and at the joint of the supporting plate and the upper face of the trolley body, and a rib plate is arranged at the right angle. According to the utility model, the vicious fault that the trolley collapses at the bent rail due to the fact that the hinged support of the annular cooling trolley is easy to break due to stress is solved, the maintenance efficiency is improved, the maintenance cost is reduced, the structure is simple, the installation is convenient, and the universality is good.

The utility model provides an annular cooler bulk material conveying system which comprises a wind conveyor, a conveying pipeline, a discharge hopper and a dust removal device, the wind conveyor is arranged at the head end of the conveying pipeline, the discharge hopper is arranged at the tail end of the conveying pipeline, and a plurality of air bellow ash hoppers are connected along the line of the conveying pipeline; and the dust removal device is connected with the discharge hopper. The pneumatic conveyor supplies air into the discharge hopper, and the dust removal device draws air from the discharge hopper, so that the pressure of conveyed gas can be balanced, raised dust in the material conveying process can be extracted, the raised dust is prevented from overflowing during discharging, the dust removal cost is greatly reduced, and the dust removal efficiency is improved. The full-closed conveying process is achieved, raised dust is avoided, and bulk materials are fully automatically, efficiently and stably collected and conveyed.

The invention discloses a vertical convection circular cooler. Comprising a rotary disc and a rotary trough mounted on the rotary disc, and the rotary trough rotates along with the rotary disc; a discharge hole is formed in the outer circumference of the bottom of the rotary trough; a sealing cover is arranged above the rotary trough; a plurality of inverted-L-shaped cantilever beams are annularly arranged on the outer side of the rotary trough, and the sealing cover is hung above the rotary trough through the cantilever beams. And the sealing cover does not rotate along with the rotary trough. The device has the advantages of small occupied area, uniform material distribution, few movable parts, less equipment abrasion, long mineral aggregate cooling retention time, energy conservation, environmental protection and the like.

The application discloses a control system and a control method for optimizing clinker cooling of a grate cooler, and aims to provide a control system and a control method for optimizing clinker cooling of a grate cooler, wherein the inside of a box body of the grate cooler is sequentially divided into multiple cooling sections according to the material flow direction, cement clinker formed after raw materials are calcined flows into the cooling sections of the grate cooler, air doors of each air cooling chamber of the cooling sections are sequentially opened to blow and cool the cement clinker, according to the air pressure and the temperature of the current cooling section, the high-pressure cooling air flow above the grate bed is opened or closed, the air pressure on both sides of the grate bed is adjusted, the cement clinker is conveyed through the grate bed in the box body from the feeding end of the grate bed to the discharging end to realize step-by-step blowing and cooling. The application automatically adjusts the air pressure on both sides in the cooling area, solves the problem that the air in the air-filled beam cannot blow through the cement clinker to form a “red river” phenomenon due to air leakage at a position with a thin material layer, and improves the clinker cooling efficiency.

The invention provides a powder material cooling device, and relates to the technical field of powder cooling. The device comprises a feeding bin, a cooling bin and a discharging bin. A feeding pipe is fixedly connected to the center of the upper side wall of the feeding bin, a reducing inner pipe is fixedly connected to the middle of the feeding pipe, and an air inlet pipe is fixedly connected to the outer side wall of the reducing inner pipe. A cooling frame is installed in the cooling bin and composed of a plurality of cooling bent plates arranged in parallel, the cooling bent plates are wavy, a plurality of rows of cooling grooves are formed in the outer side walls of the cooling bent plates, and cooling inner cavities are formed in the cooling bent plates. The discharging bin is installed on the lower side wall of the cooling bin. By optimizing the structure and layout of the cooling bent plate, the contact area and contact time of a powder material and a cooling medium are remarkably increased, and therefore efficient cooling is achieved. Meanwhile, air and powder are mixed through the arrangement of the reducing inner pipe, the flowability of powder materials is improved while precooling is conducted, blocking is prevented, and it is ensured that the materials evenly enter the cooling bin.