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169results about "Clinker production" patented technology

Grate cooler with efficient heat dissipation effect

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.
Owner:XUZHOU TIANXUAN BUILDING MATERIALS MASCH CO LTD

Material flow uniform distribution device of V-shaped powder concentrator feeding scraper-trough conveyer

The utility model relates to the technical field of material flow uniform distribution, and aims to solve the problems that in the prior art, a feeding scraper-trough conveyer does not have the material flow dynamic adjusting capacity, material distribution is uneven, the effect is poor, the sorting efficiency is low, a powder selecting system is high in energy consumption, the drying effect of materials needing to be dried is poor, and the product quality is affected. The utility model provides a material flow uniform distribution device of a V-shaped powder concentrator feeding scraper-trough conveyer. The material flow uniform distribution device comprises a feeding scraper-trough conveyer, a plurality of observation doors are arranged on the section, close to the feeding opening, of the feeding scraper-trough conveyer; a plurality of adjusting components used for adjusting the size and state of material flow in the feeding scraper-trough conveyer are arranged on the sections, close to the discharging port, of the observation doors, and one ends of the adjusting components are arranged in the feeding scraper-trough conveyer in a sliding mode and abut against the inner bottom face in the feeding scraper-trough conveyer. The powder concentrator has the beneficial effects of simplicity in installation, convenience in maintenance, simplicity in operation, capability of dynamically adjusting material flow, uniform material distribution, good effect, high separation efficiency, low energy consumption of the powder concentration system, good material drying effect and high product quality.
Owner:CHENGDU DESIGN & RES INST OF BLDG MAT IND CO LTD

Reaction schemes involving acids and bases; reactors comprising spatially varying chemical composition gradients; and associated systems and methods

ActiveUS12330989B2Process control/regulationCeramic production plantsCalcium hydroxideChemical composition
Reaction schemes involving acids and bases; reactors comprising spatially varying chemical composition gradients (e.g., spatially varying pH gradients), and associated systems and methods, are generally described. For example, methods comprising producing an acid; dissolving a material comprising calcium in the acid to produce calcium ions; treating the calcium ions to produce solid calcium hydroxide and / or calcium oxide; and utilizing the solid calcium hydroxide and / or calcium oxide in a downstream process to produce a cement, wherein the downstream process comprises heating the solid calcium hydroxide and / or calcium oxide in a kiln are described.
Owner:MASSACHUSETTS INST OF TECH

Alternative fuel vertical pre-combustion furnace

An alternative fuel vertical pre-combustion furnace comprises a vertical combustion chamber furnace body, a multi-stage stepped furnace hearth arranged on the side wall of the pre-combustion furnace body and a pneumatic pulse injection device arranged on the furnace hearth, and castable is arranged on the inner wall of the whole furnace body. Light flammable substances are completely incinerated under the driving of high-speed airflow, heavier flame-retardant substances fall into the next step to be continuously incinerated, the burn-off rate of the alternative fuel is greatly improved after the alternative fuel stays, is scattered and is pre-combusted, and completely-combusted material residues are dispersed by strong injection of compressed air of an air cannon system; therefore, the influence on the cement kiln caused by sedimentation of the material slag agglomerated in the decomposing furnace is solved. And materials on the uppermost combustion platform sequentially slide to the second-stage combustion step platform and then slide to the next-stage combustion platform layer by layer, and the process is repeated. And waste gas and ash after incineration are discharged from the bottom of the pre-combustion furnace and enter a kiln tail decomposing furnace system, when the material slag is harmful to the kiln system, the material slag can be discharged, and high-temperature airflow enters the decomposing furnace.
Owner:LUOYANG SHENTE ENG TECH CO LTD

Cement preheater cyclone low-resistance inlet structure

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.
Owner:SHAANXI FUPING ECOLOGICAL CEMENT CO LTD

Air inlet structure of grate cooler

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.
Owner:ZHANGPING RED LION CEMENT CO LTD

A control system and control method for optimizing grate clinker cooling

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.
Owner:CHINA RESOURCES CEMENT (HEQING) LTD

Fixing structure for cement inner cylinder hanging piece

The utility model relates to the technical field of cement production, in particular to a fixing structure for a cement inner cylinder hanging piece, which comprises a middle mechanism, a top mechanism and a bottom mechanism, the top mechanism is arranged at the top end of the middle mechanism, the bottom mechanism is arranged at the bottom end of the middle mechanism, the middle mechanism comprises a middle hanging piece, and a middle clamping groove is arranged on the left side of the middle hanging piece. A middle clamping groove is formed in the left side of the rear end of the middle hanging piece, a middle clamping block is fixedly installed on the right side of the middle hanging piece, the middle clamping block is movably installed in the middle clamping groove, a middle inserting groove is fixedly formed in the left side of the rear end of the middle hanging piece, a middle inserting plate is fixedly installed on the right side of the rear end of the middle hanging piece, and the middle inserting plate is movably installed in the middle inserting groove. The whole inner barrel is effectively kept stable and does not fall off, meanwhile, the whole assembly is completed through installation of the inserting blocks and the inserting grooves, the whole assembly is annular after being assembled, and therefore after being assembled, the hanging pieces extrude one another to generate inner supporting force, and the whole structure is kept stable.
Owner:XINGHUA JINNIU MASCH CASTING CO LTD

Cement clinker calcining and decomposing device

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.
Owner:CHENGDE BBMG CEMENT CO LTD

Combustion method using fuel combustion device, cement manufacturing method, and cement firing facility

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.
Owner:SUMITOMO OSAKA CEMENT CO LTD

Grate cooler for cement production

The utility model discloses a grate cooler for cement production, and relates to the technical field of cement production. Comprising a grate cooler body, a feeding pipe is fixedly connected to one side of the top of the grate cooler body, a shielding mechanism is arranged on one side of the feeding pipe and used for shielding the feeding pipe, the shielding mechanism comprises a bottom plate, the bottom plate is connected with the grate cooler body, supporting plates are fixedly connected to the two sides of the top of the bottom plate, and folding assemblies are arranged on one sides of the supporting plates. Through the arrangement of the shielding mechanism and the heat exchange mechanism, in the using process, the grate cooler is connected with the grate cooler body through the bottom plate and the supporting plate, then a servo motor on a fixing plate drives a lead screw to rotate to drive a sliding block to move up and down along the supporting plate, and a connecting rod is driven to move under the action of a supporting rod and a fixing rod; the device can effectively prevent foreign matters from entering the grate cooler body from the feeding pipe, so that the overall safety is improved.
Owner:YUNNAN YONGBAO CEMENT CO LTD

Biomass fuel auxiliary scattering and discharging device

The utility model relates to the technical field of cement plant kilns, and provides a biomass fuel auxiliary scattering and discharging device which comprises a hopper and a frame, a driving piece is arranged on the outer surface of the hopper, and the inner wall of the hopper is rotationally connected with a first scattering roller, a second scattering roller and a third scattering roller. Linkage pieces are arranged among the first scattering roller, the second scattering roller and the third scattering roller, and scattering cutters are fixedly connected to the surfaces of the first scattering roller, the second scattering roller and the third scattering roller. After the biofuel enters the hopper, a motor drives a first scattering roller to rotate through a speed reducer, a first synchronous wheel drives a second synchronous wheel and a second scattering roller to rotate through a first synchronous belt, and the first synchronous wheel drives a third synchronous wheel and a third scattering roller to rotate through a second synchronous belt, so that a scattering cutter rotates; and in addition, a vibration motor is combined, so that when the hopper is vibrated, the biofuel is convenient to discharge.
Owner:GUIYANG HAILUO PANJIANG CEMENT CO LTD

Rotary unloader for cement production and processing

The utility model relates to the technical field of cement production, in particular to a rotary unloader for cement production and processing. According to the technical scheme, a lower discharging assembly is installed below an upper discharging assembly, a first transmission shaft is rotationally installed in the upper discharging assembly, a first synchronous wheel is fixed to one end of the first transmission shaft, a second transmission shaft is rotationally installed in the lower discharging assembly, and a second synchronous wheel is fixed to the other end of the second transmission shaft. A second synchronous wheel is mounted on the outer side, located on the lower discharging assembly, of the second transmission shaft; a first valve plate is arranged on the portion, located in the upper discharging assembly, of the first transmission shaft, a second valve plate is arranged on the portion, located in the lower discharging assembly, of the second transmission shaft, and the angle difference between the first valve plate and the second valve plate is 45 degrees. The upper discharging assembly and the lower discharging assembly alternately seal the discharging port in the discharging process. Due to the alternative sealing design, dust is effectively prevented from leaking out in the conveying process.
Owner:PUCHENG COUNTY TRACEABILITY ENGINEERING MANAGEMENT CO LTD

Method for producing hydraulic binders from water treatment residues

A method for making a high alumina hydraulic binder includes hydrating a source of aluminum ions with a source of calcium ions in the presence of water to form a mineral hydrate and then heating the mineral hydrate to form the high alumina hydraulic binder.
Owner:ARDEX ANLAGEN GMBH

Automatic cement batching device for cement production line

The utility model relates to the technical field of cement production, in particular to an automatic cement batching device for a cement production line, which comprises a base, the upper end of the base is fixedly connected with a batching box, the left part of the upper end of the batching box is fixedly connected with a batching component in a penetrating manner, and the upper part of the outer surface of the batching box is fixedly connected with a mounting plate; a connecting plate is fixedly connected to the rear part of the upper end of the batching box, and a control mechanism is fixedly mounted at the upper end of the mounting plate. According to the automatic cement batching device for the cement production line, the independent cement batching feeding pipe and the cement raw material feeding pipe are arranged, and the electronic valves are mounted on the outer surfaces of the cement batching feeding pipe and the cement raw material feeding pipe, so that an operator can accurately control the feeding amount of cement batching and cement raw materials, and the feeding amount of the cement raw materials can be accurately controlled by adjusting the opening degrees of the electronic valves; different materials can be added according to a preset formula, so that the accuracy of the raw material ratio in the cement production process is ensured, and a cement product with high quality and stable performance can be produced.
Owner:HEBEI KUANG FENG CEMENT CO LTD

Sealing device of grate cooler transmission mechanism for cement production

The utility model relates to the technical field of cement production, in particular to a sealing device of a grate cooler transmission mechanism for cement production, which comprises an equipment shell, a sealing chamber is mounted on the left side wall of the equipment shell, a transmission shaft is movably mounted on the inner side of the sealing chamber through a bearing, and a cleaning brush is fixedly mounted in the middle of the transmission shaft; a sealing structure is installed on the equipment shell and comprises a conical outer cover, and the conical outer cover is fixedly installed on the right side wall of the equipment shell. According to the utility model, the conical outer cover and the conical inner cover are matched and can cover the outer side of the joint of the equipment shell and the transmission shaft, and the conical outer cover and the conical inner cover are in gt; through the conical arrangement, dust can be guided to drift away from the gap between the conical inner cover and the transmission shaft between the conical outer cover and the conical inner cover, the dust is further prevented from being scattered out of the gap between the conical inner cover and the transmission shaft in cooperation with the sealing brush, and the sealing effect of the device is improved.
Owner:NANJING RUITAI CEMENT MFG EQUIP CO LTD

Low-temperature waste heat flash evaporation and dual-pressure hybrid power generation system

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.
Owner:JIANGXI YADONG CEMENT CO LTD

Method and facility for producing material containing hydrated cement

ActiveEP3853185B1Construction waste recoveryCeramic production plants
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.
Owner:THYSSENKRUPP POLYSIUS GMBH +1

Externally-hung fuel furnace with good pre-combustion effect

The utility model relates to the technical field of combustion furnaces, and discloses an external fuel furnace with a good pre-combustion effect, which comprises a regulation and control detector, a regulation and control controller, a multi-stage feeding section and a pre-combustion section, the multi-stage feeding section comprises an up-down air-locking flap discharging valve, a storage bin and a screw feeder, the discharging end of the up-down air-locking flap discharging valve is communicated with the feeding end of the storage bin, the discharging end of the storage bin is communicated with the feeding end of the screw feeder, and the discharging end of the screw feeder is connected with the pre-combustion section. According to the externally-hung fuel furnace with the good pre-combustion effect, the pre-combustion effect of fuel can be improved by accurately controlling the pre-combustion condition, then the combustion efficiency and the product quality of a cement kiln system are improved, meanwhile, energy utilization can be optimized and energy waste can be reduced through an intelligent control strategy, and therefore the purposes of energy conservation and emission reduction are achieved. In addition, due to the design of the multi-stage feeding section, the automation degree of fuel treatment can be improved, manual intervention is reduced, and the production efficiency is improved.
Owner:GEZHOUBA SONGZI CEMENT CO LTD

Efficient energy-saving device for cement clinker

The utility model relates to the technical field of cement clinker processing, in particular to an efficient and energy-saving cement clinker device which comprises a machine body, the machine body comprises a fan shell, a motor is fixedly installed on the inner side of the fan shell, the output end of the motor is fixedly connected with a rotating shaft, a connecting shaft is arranged on the surface of the rotating shaft, and the connecting shaft is connected with the fan shell. Blades are mounted on the surface of the connecting shaft; and mounting mechanisms are arranged on the inner sides of the blades. According to the utility model, through the cooperation of the first positioning block and the first positioning groove and the cooperation of the second positioning block and the second positioning groove, the installation of the blade on the connecting shaft can be positioned, so that the installation of the blade can be more accurate and convenient; and the connecting block can drive the inserting rod and the first inserting groove to be inserted and separated, and then the blades and the connecting shaft can be rapidly fixed and disassembled, so that when the blades are damaged, the blades are conveniently maintained or replaced.
Owner:XINJIANG QINGSONG BUILDING MATERIALS CO LTD

Device for conveying powdery alternative fuel into decomposing furnace

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.
Owner:GEZHOUBA LAOHEKOU CEMENT

Cement clinker sintering system capable of reducing heat loss

The utility model relates to the technical field of cement clinker firing, in particular to a cement clinker firing system capable of reducing heat loss, which comprises a rotary kiln, a top shell is arranged at the top of the rotary kiln, a driving mechanism is arranged on the left side of the top shell, the driving mechanism comprises a side shell, and the right side of the side shell is welded with the top shell. And the front side of the left side of the side shell is connected with a servo motor through a bolt. The supporting frame, the air inlet shell, the air pump, the air spraying shell, the top shell, the movable drawer, an electric heating pipe and a first communicating pipe are arranged and used in cooperation, in the using process, the air pump, the electric heating pipe and a servo motor can be started through an external controller, the electric heating pipe heats air in an inner cavity of the air inlet shell, and the air in the inner cavity of the air inlet shell is heated; the air pump conveys air which is filtered by the first filter plate to remove impurities and heated by the electric heating pipe to the inner cavity of the second communication pipe through the first communication pipe, and then the air is evenly sprayed out to the inner cavity of the top shell through the air spraying shell to preheat the inner cavity of the top shell.
Owner:LIJIANG ANCIENT CITY SOUTHWEST CEMENT CO LTD

Split grate cooler guard plate

The utility model discloses a split grate cooler guard plate which comprises an upper guard plate body, a first installation cavity is formed in the upper guard plate body, a first installation protruding block is integrally and fixedly installed below the rear end of the upper guard plate body, a lower guard plate body is installed below the upper guard plate body, and a second installation cavity is formed in the lower guard plate body. And a conveying roller is mounted in the second mounting cavity, mounting bearings are mounted at the upper end and the lower end of the conveying roller, and a transmission belt is mounted on the outer surface of the conveying roller. According to the grate cooler guard plate, the transmission belt capable of performing transmission is arranged in the split grate cooler guard plate, so that the movable grate plate can drive the transmission belt in the grate cooler guard plate to move through friction force when the movable grate plate reciprocates with the transmission belt and the movable grate plate reciprocates, and further, friction damage caused by relative movement between the movable grate plate and the grate cooler guard plate is avoided; and the service lives of the movable grate plate and the grate cooler guard plate are prolonged.
Owner:XINGHUA HAIRUN CAST STEEL

Cementitious reagents, their preparation and use

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.
Owner:TERRA CO2 TECHNOLOGY HOLDINGS INC

Cooling device for ground cement of cement grinding mill

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.
Owner:龙里红狮水泥有限公司

Efficient cement kiln preheating device

The utility model relates to the technical field of cement production, and discloses an efficient cement kiln preheating device. The efficient cement kiln preheating device comprises a preheating structure assembly, a conveying structure assembly is installed on the left side of the preheating structure assembly, a hot air pipe is installed at the upper end of the conveying structure assembly, a connecting pipe is installed on the left side of the hot air pipe, and a hot air pump is installed on the left side of the connecting pipe; the device comprises a conveying structure assembly, a uniform material scattering assembly is installed on the left side of the conveying structure assembly, a conveying frame is installed at the upper end of the uniform material scattering assembly, and a pouring groove is formed in the upper end of the conveying frame. In the prior art, subsequent materials are caked and fed unevenly, the heat exchange efficiency and the decomposition rate of the subsequent materials are affected, conveyed hot air is unstable when a cement kiln preheater is used, and the subsequent material waste heat effect is poor.
Owner:JIANG XI HU SHAN JI SHAN SHUI NI YOU XIAN GONG SI

Oxygen injection for alternative fuels used in cement production

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.
Owner:MESSER IND USA INC +1

Method for producing cement clinker having reduced hexavalent chromium content

To provide a method for producing a cement clinker, capable of reducing hexavalent chromium content even when waste is contained as a cement clinker raw material.SOLUTION: This invention relates to a method for producing a cement clinker having reduced hexavalent chromium content wherein, when a cement clinker raw material containing a waste is supplied to a rotary kiln and calcined, a sulfate is charged near a burning point of a main burner of the rotary kiln, and a combustible material is charged in a range from a vicinity of the burning point to an outlet of a cement kiln.SELECTED DRAWING: Figure 1
Owner:TAIHEIYO CEMENT CORP

High-temperature-resistant sealing device for grate cooler

The high-temperature-resistant sealing device comprises a first connecting pipe and a second connecting pipe, the first connecting pipe and the second connecting pipe are connected in a sleeved mode in a sliding mode, a sealing cabin is installed on the first connecting pipe, a sealing pipe is fixedly installed on the second connecting pipe, the sealing pipe is connected with the sealing cabin in a sliding mode, and the sealing cabin is connected with the sealing pipe in a sliding mode. The first connecting pipe and the second connecting pipe are provided with multiple sets of annularly-distributed bolts, the bolts are sleeved with first springs, the two ends of each first spring are fixedly connected with the first connecting pipe and the second connecting pipe correspondingly, a mounting pipe is fixedly mounted on the sealed cabin, and the sealed cabin communicates with the mounting pipe. Sealing connection between the first connecting pipe and the second connecting pipe is achieved through the arranged sealing cabin and the arranged sealing pipe, the sealing cabin is filled with sealing oil, the sealing cabin is matched with the sealing pipe, and a push plate in a mounting pipe and a first spring on a bolt provide a certain movement space between the first connecting pipe and the second connecting pipe.
Owner:XUZHOU SHIMING MASCH CO LTD

Raw material homogenizing device for cement production

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.
Owner:SHANXI XINLULAN ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD