60results about "Clinker production" patented technology

The utility model discloses a low-resistance inlet structure of a cyclone of a cement preheater, and relates to the field of cement industrial production. The feeding device comprises an inlet air pipe, a volute body is installed on one side of the inlet air pipe, an inner cylinder integrated with the volute body is welded to the middle of the volute body, a column body is installed on the lower side of the volute body, a discharging cone is installed below the column body, a plurality of installation frames are installed on the peripheral side of the column body, and the installation frames are installed on the lower side of the volute body. A discharging pipe is installed at an outlet of the discharging cone, and a low-resistance inlet assembly is arranged at an inlet of the inlet air pipe. According to the utility model, the air conveying pipe and the expansion shell are arranged at the inlet air pipe, and the expansion shell is arranged at the top of the inlet air pipe and the top of the air conveying pipe, so that the width of the inlet air pipe is kept unchanged, the height of the air inlet is increased, and the area of the inlet of the cyclone cylinder is properly increased, and in this way, the resistance can be effectively reduced, and the influence on the separation efficiency of the cyclone separator is small.

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 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 utility model discloses a cement clinker calcining and decomposing device, which relates to the technical field of cement clinker production and comprises a supporting frame, a plurality of supporting rods are arranged on one side of the top end of the supporting frame, a fuel connecting cylinder is arranged at the top ends of the supporting rods, a feeding cylinder is arranged at one end of the fuel connecting cylinder, and a preheating assembly is arranged at the top end of the feeding cylinder. A fixing rod is arranged on the other side of the top end of the supporting frame, a discharging box is arranged at the top end of the fixing rod and connected with the feeding cylinder through a furnace cylinder assembly, and an exhaust pipe is arranged at the top end of the discharging box. According to the utility model, by arranging the preheating assembly, the cement raw material can be preheated, so that the cement raw material can reach the firing temperature more quickly, thereby effectively shortening the time required by calcination and decomposition, not only improving the production efficiency, but also reducing the heat consumption of clinker firing, and further improving the overall production benefit.

A combustion method using a fuel combustion device, a cement manufacturing method, and a cement calcination facility including a fuel combustion device, in which while the amount of a fossil fuel used as a fuel supplied to a fuel combustion device provided in various facilities such as a cement calcination facility is reduced, the radiation heat transfer amounts of various burners are maintained, whereby the amount of heat transferred to a heating target such as a powder raw material of cement clinker is maintained to maintain a state suitable for calcination, the amount of carbon dioxide emitted from the various facilities is reduced, and the various facilities can be operated at a low cost, and a fuel combustion device including a fuel supply mechanism having a mechanism that supplies a flammable powder, a mechanism that supplies a fuel gas, and a mechanism that supplies a non-flammable powder are used.

The utility model provides a low-temperature waste heat flash evaporation and dual-pressure hybrid power generation system which comprises a first rotary kiln structure, a flash evaporation power generation system connected to the first rotary kiln structure, a second rotary kiln structure and a dual-pressure power generation system connected to the second rotary kiln structure. High-temperature steam of the dual-pressure power generation system is connected to the steam outlet end of the flash evaporation power generation system, gradient utilization of heat energy is achieved, surplus power generation capacity of the flash evaporation power generation system is fully utilized, waste of the heat energy is avoided, different waste heat can be fully utilized through water vapor complementation, the overall utilization rate of the waste heat is remarkably improved, and the energy consumption is reduced. And meanwhile, energy consumption and emission are reduced, and remarkable economic and environmental benefits are achieved.

The invention relates to a method for producing material containing hydrated cement, wherein the material is crushed in a first crushing device (2) and then supplied to a reactor (3) in which the material is mixed with an aqueous liquid and CO2 and in which a mixing movement of the material is generated, wherein the material removed from the reactor (3) is split into at least two fractions by means of a grading device (20). Furthermore, the temperature and the pressure in the reactor (3) are influenced such that an overpresssure in comparison with the atmospheric pressure and a temperature higher than 100°C are adjusted.

The utility model relates to the technical field of decomposing furnace feeding, and discloses a device for conveying powdery alternative fuel into a decomposing furnace, which comprises a storage bin, a metering scale for weighing the alternative fuel is arranged on the bottom wall of the inner side of the storage bin, the top of the storage bin is communicated with a feeding bin, and the feeding bin is communicated with a discharging bin. The exterior of the feeding bin and the storage bin are connected with three-way valves through pipelines, the other ends of the three-way valves are connected with a fan, a linkage type switching assembly is arranged between the storage bin and the feeding bin, a blocking filter plate located at the joint of the feeding bin and the three-way valves is arranged in the feeding bin, the exterior of the feeding bin communicates with a feeding pipeline, and the feeding pipeline communicates with the storage bin. And the outer part of the storage bin is communicated with a discharging pipeline. The device for conveying the powdery alternative fuel into the decomposing furnace has the advantages that the foam can be conveniently fed into the decomposing furnace, the retention time of the foam in the external environment is shortened, the environmental pollution is improved, the value of the foam is brought into play more efficiently, and the production cost is reduced.

The present invention provides a cementitious reagent material produced from globally abundant inorganic feedstocks, methods for the manufacture of such cementitious reagent material and for forming the reagent material as microspherical glassy particles, and also provides an apparatus, system, and method for the thermochemical production of glassy cementitious reagent having a spherical morphology. [Solution] A cementitious reagent is provided, which includes particles containing atoms of Si, Al, Fe, Ca, Mg, Na, and K, said particles having a spherical morphology with an average circularity (R) of >0.8, and said particles being at least 80% X-ray amorphous.

The utility model relates to the technical field of cement production, and discloses a ground cement cooling device of a cement grinding mill. The ground cement cooling device of the cement grinding mill comprises a bottom plate, a supporting rod is fixedly installed above the bottom plate, a limiting pipe is fixedly installed above the supporting rod, a feeding port is fixedly formed in the upper portion of the limiting pipe, a limiting frame is fixedly installed at the left end of the limiting pipe, a driving pipe is movably installed in the center of the limiting pipe, and the driving pipe is fixedly installed at the left end of the limiting pipe. The heat conduction area between the heat pipe and air flow can be increased through the heat dissipation fins, the air flow is generated between the heat dissipation fins through the fans on the front side and the rear side, heat of the heat pipe is taken away through the air flow, and therefore water in the water tank can be rapidly cooled; the temperature difference between the cement and the circulating water is too small, so that the heat conduction efficiency is influenced, and the cooling effect is influenced, which are caused by too high temperature of the circulating water discharged out of the water tank due to long-time operation, is avoided.

Provided is a system for enhancing combustion in a kiln, including a kiln combustion chamber disposed within the kiln, the kiln combustion chamber having an atmosphere therein; a main burner for heating the atmosphere; a calciner assembly for providing a substance to be heated into the kiln combustion chamber; a precalciner including a precalciner combustion chamber disposed within the precalciner for receiving a biomass fuel for combustion in the precalciner combustion chamber, the precalciner combustion chamber in communication with the kiln combustion chamber; and a precalciner oxygen injector in fluid communication with the precalciner combustion chamber for providing a first oxygen stream into the biomass fuel for the combustion. A related apparatus and method for enhancing combustion with oxygen and biomass fuel are also provided.

The utility model belongs to the technical field of cement processing, particularly relates to a raw material homogenizing device for cement production, and provides the following scheme aiming at the problems of non-uniform mixing and easiness in blockage in a discharging process in the background technology: the raw material homogenizing device comprises a homogenizing tank, and a vertical stirring mechanism is arranged in the homogenizing tank; transverse stirring mechanisms are arranged on two sides of the homogenizing tank. Through the synergistic effect of the vertical stirring mechanism and the transverse stirring mechanism, three-dimensional stirring is formed, a stirring blind area is eliminated, the mixing uniformity of raw materials is remarkably improved, the stirring speed is accurately controlled by utilizing the servo motor, the stirring strength can be adjusted according to material characteristics, and invalid energy consumption is reduced; material flowing is assisted through high-frequency vibration, material accumulation and blockage are effectively avoided in combination with continuous conveying of the discharging mechanism, vibration transmission in the discharging process is reduced through the design of the soft connector, and the service life of equipment is prolonged.

The utility model relates to the technical field of cement production devices, and discloses a decomposing furnace necking protection device which comprises a machining mechanism, a protection mechanism is fixedly connected to the top of the machining mechanism, a connecting mechanism is fixedly connected to the outer side of the machining mechanism, and the protection mechanism comprises a necking body. A first sealing ring is fixedly connected to the bottom of the necking body, a second sealing ring is slidably connected to the bottom of the first sealing ring, a fixing block is fixedly connected to the bottom of the second sealing ring, and a limiting assembly is fixedly connected to the outer side of the necking body and comprises a fixing plate. The inner side of the fixing plate is fixedly connected to the outer side of the necking body. According to the utility model, dust or other substances are prevented from leaking, so that the stability and the sealing performance of the internal environment of the necking protection device of the decomposing furnace are ensured, the normal working state of the decomposing furnace is favorably maintained, and the possibility of heat loss and material leakage is reduced.

The rotary cement kiln door comprises a first door body and a second door body which are rotationally installed at a door frame through a door shaft assembly, and the opposite sides of the first door body and the second door body are each provided with an arc-shaped notch so that a combustor through hole can be formed after installation; the upper side and the lower side of the first door body and the upper side and the lower side of the second door body are connected with the door frame through buckle assemblies, handles are arranged at the positions, located above the arc-shaped notches, of the first door body and the second door body, and a high-temperature-resistant camera is installed on the first door body. When the door is used, the first door body and the second door body can be easily opened or closed by one person through cooperation of the handle and the door shaft assembly, time and labor are saved in the operation process, the door frame is not prone to deformation in the operation process, and therefore air leakage and sand material leakage can be effectively avoided, energy consumption is reduced, and field environmental sanitation is ensured; the first door body and the second door body are fixedly connected with the door frame by operating the buckle assembly, and the condition in the rotary kiln can be observed through the high-temperature-resistant camera.

The utility model relates to the field of cement building materials, in particular to an alternative fuel conveying device which comprises a decomposing furnace body and further comprises a conveying assembly, the conveying assembly comprises a tertiary air pipe, a discharging pipe, a shell, a dividing wheel, a feeding pipe and a centralizing component, the tertiary air pipe is connected with the decomposing furnace body, the discharging pipe is connected with the tertiary air pipe, the shell is connected with the discharging pipe, and the dividing wheel is connected with the feeding pipe. The grid wheel is arranged in the shell, the feeding pipe is connected with the shell, and the concentration component is arranged on the feeding pipe, so that alternative fuel is accurately and uniformly fed through the grid wheel, carbon monoxide fluctuation is avoided, material calcination in a kiln is prevented from being affected, and alternative fuel combustion maximization is achieved.

The utility model discloses a weight reduction type rotary kiln large gear ring, and belongs to the technical field of cement production equipment. Comprising a plurality of gear ring sections, the gear ring sections form a large gear ring body, cavity structures are formed in the gear ring sections, a plurality of reinforcing ribs are fixedly arranged on the inner walls of the cavity structures, and connecting devices are arranged among the gear ring sections and used for positioning and connecting the gear ring sections. The cavity structure is adopted in the gear ring section, then the reinforcing ribs are arranged, the structural strength of the gear ring section is enhanced, the same using performance is met, and compared with a traditional solid large gear ring which is integrally cast or forged, the use amount of materials is greatly reduced, the weight of the whole gear ring is reduced, and the manufacturing cost is reduced; the large gear ring body is designed to be composed of the multiple gear ring sections, the manufacturing difficulty is effectively reduced, the size and weight of each gear ring section are relatively small, and machining and transportation in the manufacturing process are facilitated.

The utility model relates to the field of equipment manufacturing, in particular to ventilation quantity adjusting equipment and grate type cooling equipment. The ventilation quantity adjusting device comprises a supporting plate, a rotating disc and a preset number of blades. Ventilation openings are formed in the corresponding positions of the supporting plate and the rotating disc. Each blade is provided with a first connecting part and a second connecting part; the first connecting part is connected with the rotating disc, and the second connecting part is connected with the supporting plate; the rotating disc is used for being driven to rotate and driving all the blades to rotate through the first connecting part, so that the opening degree of the ventilation opening is adjusted through rotation of all the blades, and the air volume of all areas of the grate type cooling equipment is accurately controlled. The heat exchange efficiency can be effectively improved, and air blowing power consumption and air consumption can be effectively reduced.

The utility model relates to the technical field of preheating links in cement production, in particular to a blanking device for a scattering box. Comprising a three-stage blanking pipe, a scattering box, a five-stage cyclone cylinder and a five-stage outlet ascending pipeline, the fifth-stage cyclone cylinder is positioned at the bottom of the fifth-stage outlet ascending pipeline; the third-stage discharging pipe is obliquely arranged, the bottom of the third-stage discharging pipe is connected with the material scattering box, and the material scattering box is located on one side of the fifth-stage outlet ascending pipeline and communicated with the fifth-stage outlet ascending pipeline. An ash removal hole is formed in the material scattering box; the pipe further comprises a hard pipe body. A plurality of concave steps are sequentially formed in the side wall of the pipe body in the axis direction of the pipe body; a handle is arranged at the top of the tube body; the bottom of the pipe body is inserted into the scattering box from the ash removal hole of the scattering box, and the handle is located outside the scattering box and fixed to the scattering box; according to the utility model, the problem that the materials directly enter the kiln due to short-circuit collapse of the materials after the hanging piece is broken is solved.

This utility model relates to the field of protective plate technology and discloses a rotary kiln inlet protective plate for cement production. It includes a kiln inlet protective plate body, a storage groove on the outer side of the body, and a laterally displaceable connecting sealing block within the storage groove. The connecting sealing block is elastically connected to the inner side of the kiln inlet protective plate body via an elastic component. A power chamber is formed on the inner side of the body, and a transmission component capable of pushing the elastic component is located inside the power chamber. The connecting sealing block adaptively adjusts the sealing gap through lateral displacement during the thermal expansion of the rotary kiln. A sealing gasket is fixedly connected to one end of the connecting sealing block on the outer side of the body, and a sliding fit is formed between the storage groove and the sealing block. This rotary kiln inlet protective plate for cement production has advantages such as adjustable length and improved sealing between the protective plates.

The invention provides a cement decomposing furnace material scattering device, and relates to the technical field of cement production equipment, the cement decomposing furnace material scattering device comprises an annular material scattering box fixedly arranged on the outer side of the upper portion of a decomposing furnace in a sleeving mode, an annular partition plate is fixedly arranged in the annular material scattering box, and the annular material scattering box is sequentially divided into a material arranging chamber and a material scattering chamber by the annular partition plate from top to bottom; a plurality of communicating holes distributed at equal intervals along the circumference are formed in the annular partition plate, the material arranging chamber is communicated with the material scattering chamber through the communicating holes, and at least one feeding pipe communicated with the material arranging chamber is arranged on the upper portion of the annular material scattering box. The rotary material distributing assembly and the material scattering assembly are matched for cooperative work, so that raw material powder is uniformly dispersed along the circumference of the decomposing furnace, bias flow and non-uniform distribution are avoided, and the contact area of materials and high-temperature flue gas is increased; meanwhile, an airflow field in the furnace is adapted, eddy current and airflow short circuit are inhibited, the material retention time is prolonged, the raw material decomposition rate and the heat exchange efficiency are improved, and energy consumption is reduced.

The utility model discloses a cement kiln waste heat multi-stage heat energy utilization system which comprises waste heat generation equipment, the waste heat generation equipment is a preheater and / or a grate cooler, the waste heat generation equipment is communicated with steam generation equipment, and the steam generation equipment is a steam generator and / or a waste heat boiler of a waste heat power generation system. The steam generating device is in communication with a cement product associated device. The method has the beneficial effects that the cement plant has diversified economic benefits; the production cost is reduced; the building material industry is integrated, energy-saving and environment-friendly; the process arrangement flexibility is improved; multi-stage utilization of waste heat of the cement kiln; energy can be fully utilized, and meanwhile economic benefits are improved.

The utility model relates to the technical field of cement production preheating, and discloses a preheating device for cement production. The preheating device for cement production comprises a device structure assembly, an inner cylinder is installed at the upper end of the device structure assembly, a hanging piece is installed in the inner cylinder, a fixing ring is installed at the upper end of the inner cylinder, an outer cylinder is installed at the upper end of the fixing ring, and a part assembly is installed at the lower end of the device structure assembly. The device comprises a device structure assembly, an air chamber assembly is installed on the right side of the upper end of the device structure assembly, an air inlet box is installed at the upper end of the air chamber assembly, an air inlet is formed in the left side of the upper end of the air inlet box, and a nanometer heat insulation plate is installed in the air inlet box. The problems that follow-up resistance is increased, follow-up efficiency is low, power consumption and coal consumption cannot be reduced, and production cost cannot be reduced are solved.

The utility model provides an efficient heat exchange grate cooler, and relates to the field of building material machinery, the efficient heat exchange grate cooler comprises a grate plate used for pushing clinker to move; the grate bed is arranged at the bottom of the grate plate and is used for supporting the grate plate; the plurality of hydraulic transmission devices are arranged at the bottom of the grate bed and are used for controlling the movement of the grate plate; the plurality of grate bed supporting devices are arranged between every two adjacent hydraulic transmission devices and are used for supporting the grate beds; the upper shell is arranged at the top of the grid plate and is used for preventing the hot air from dissipating; the cooling fan unit is arranged on one side of the grate bed; the cooling device is used for providing cooling air for clinker cooling. According to the clinker cooling device, the nozzle plate and the nozzles are arranged, the nozzles are driven to be inserted into a clinker layer through downward pressing of the hydraulic rod, cooling air passes through the nozzle plate and is sprayed out of the nozzles, uniform cooling of the clinker layer is achieved, clinker cooling is fast, and the problem that clinker cooling is not uniform in the prior art is solved.

Described herein is a cementitious reagent material produced from globally abundant inorganic feedstocks. Also described are methods for the manufacture of such cementitious reagent materials and for forming the reagent material as microspherical glassy particles. Also described are apparatuses, systems, and methods for the thermochemical production of glassy cementitious reagents having spherical morphology. The apparatuses, systems, and methods utilize an in-air melting / quenching technique such that solid particles are flowed as a suspension, melted as a suspension, and then quenched as a suspension. The cementitious reagents can be used in concrete to substantially reduce CO2 emissions associated with cement production.

The invention provides a system for disposing alternative fuel based on a cement kiln, comprising: a preheating mechanism suitable for preheating a raw material to obtain a hot raw material; the conversion mechanism is suitable for containing alternative fuel and heating the alternative fuel to a preset temperature at which combustible gas and solid products are generated; and the decomposition mechanism is communicated with the preheating mechanism and the conversion mechanism and is suitable for accommodating combustible gas for combustion so as to calcine the hot raw material and the solid product to form a decomposition product.

An installation for thermal treatment of free-floating raw material, in particular cement raw meal and / or mineral products, may include a riser line through which hot gases can flow. The riser line has at least one fuel inlet for introducing fuel into the riser line. The riser line has at least one raw meal inlet for introducing raw meal into the riser line, which raw meal inlet is arranged upstream of the fuel inlet in a flow direction of gas inside the riser line. Further, a method for thermal treatment of free-floating raw material may involve introducing fuel via a fuel inlet into a riser line for guiding hot gases and introducing raw meal into the riser line. The raw meal is introduced into the riser line upstream of the fuel inlet in the flow direction.

The application relates to the technical field of cement production devices, and discloses a thickened inner cylinder of a cement preheater, which comprises a reinforcing plate and a cylinder body, the reinforcing plate is arranged in the cylinder body, and the reinforcing plate is spliced by multiple thickened plates. The thickened inner cylinder of the cement preheater can realize tool-free quick installation of the reinforcing plate through the sleeve, the stabilizing rod, the clamping block and the clamping groove, the connecting spring ensures the stability of the clamping force, the high-temperature vibration environment is adapted, the installation time is shortened, the shock resistance is improved, the loosening risk of traditional welding and bolts is avoided, the corrugated concave-convex plate is arranged, the corrugated structure increases the surface area of the reinforcing plate, the castable is embedded in the corrugated gap, the mechanical bite strength is improved, the outer high-temperature-resistant alloy is designed, direct contact with high temperature and corrosive medium is realized, the anti-oxidation, sulfur and alkali corrosion resistance is provided, the inner carbon steel is designed, the structural strength can be ensured, and the cost is reduced.

The utility model provides a cement kiln RDF alternative fuel feeding structure, and relates to the field of feeding structures.The cement kiln RDF alternative fuel feeding structure comprises a conveyor, a mounting assembly is arranged at the front end of the conveyor, a cleaning piece is arranged outside the mounting assembly, a connecting piece is arranged at the bottom end of the mounting assembly, and a receiving and conveying piece is arranged in the connecting piece; and moving assemblies are arranged on the two sides of the receiving and sending piece correspondingly, and a transmission assembly is arranged outside the connecting piece. According to the feeding device, through the arrangement of the cleaning part and the receiving and conveying part, the moving assembly is driven to operate through the transmission assembly, the cleaning part cleans fuel attached to the conveying belt, meanwhile, the receiving and conveying part is driven to move in a reciprocating mode, the cleaned fuel is received and conveyed to the lower portion, and the feeding stability and efficiency are improved.

The feeding device comprises the rotary kiln, a feeding hopper and a conveying pipe, a water removal box is communicated between the feeding hopper and the conveying pipe, a driving piece is connected to one side of the water removal box, a first push plate is connected to a driving rod of the driving piece, and a bearing plate is connected to the lower side of the first push plate in a sliding mode. Water filtering holes are evenly distributed in one side wall of the water removing box and are opposite to the first push plate. The waste liquid squeezing device has the advantages that medical waste is placed in the feeding hopper and then falls on the bearing plate, the driving part is started to drive the first push plate to move forwards on the bearing plate to squeeze the medical waste, waste liquid in the medical waste is squeezed out and discharged from the water filtering holes, and after the waste liquid is squeezed, the first push plate is driven by the driving part to move backwards, so that the waste liquid is squeezed out. And after a certain distance is moved, the bearing plate is driven to move backwards together, the medical waste on the bearing plate is pushed into the conveying pipe through the second push plate and finally enters the rotary kiln, the incineration speed can be increased, and the incineration efficiency is improved.