28results about How to "Improve calcination efficiency" patented technology

The invention discloses dust collecting and removing equipment for petroleum calcined coke production in the technical field of petroleum, the equipment comprises a main body furnace, the main body furnace comprises a furnace barrel arranged on the main body furnace, a gas outlet pipeline is fixedly mounted on the surface of the furnace barrel, a mounting table is fixedly mounted on the surface of the furnace barrel, and the equipment further comprises a switching mechanism; the switching mechanism comprises a switching turntable rotationally connected with the mounting table, a torsion spring is coaxially and fixedly mounted in the switching turntable, six rotating cylinders are fixedly mounted on the surface of the switching turntable, a filter block is attached to the inner wall of each rotating cylinder, and the switching turntable is driven by the torsion spring to quickly rotate; and then the filter block at the first station a is rapidly rotated to the second station b, and the adjacent filter block is rapidly supplemented to the first station a, so that the purpose of automatically and rapidly replacing the filter block is achieved, the adjacent filter block is not influenced, the switching stability is ensured, the calcination work is continuously carried out, and the calcination efficiency is improved.

The application discloses a multi-channel shaft kiln for calcining magnesite, wherein a distributing vehicle and a discharging device are located at the top and bottom of a kiln body. The kiln body is provided with a preheating section, a calcining section and a roasting section from top to bottom, and square strip-shaped channels are arranged in the kiln. A combustion chamber is arranged in the furnace wall on both sides of the calcining section with a width of 40-80 cm, the combustion chamber is built by hollow integral combustion bricks, the combustion chamber is communicated with the calcining section by cross-distributed through holes, the through hole outlet is downwardly inclined, and an inclined convex block is arranged at the top. The lower part of the roasting section is provided with an upper collecting opening and a lower expanding opening structure, an air pressure pipe is arranged in the inclined brick of the upper collecting opening, the opening of the air pressure pipe is downwardly inclined and communicated with the roasting section, and the lower expanding opening is matched with the upper semicircular surface of the discharging device. The middle part of the upwardly inclined distributing main pipe of the distributing vehicle is communicated with the branch pipe which is inclined and changed in direction, and a change valve is arranged in the main branch pipe. The application provides a comprehensive solution of the shaft kiln with high calcining quality, energy saving, low investment and long service life for calcining magnesite, and can also be used for high-quality calcining of small-particle materials.

The invention discloses an efficient rotary kiln for barite calcination, and belongs to the technical field of rotary kilns.The efficient rotary kiln comprises a fixed shell, a rotary cylinder, a preheating cylinder, a feeding mechanism and a heating mechanism, the interior of the rotary cylinder is hollow to form a calcining chamber, and the outer surface of the rotary cylinder is provided with spiral teeth extending in the spiral direction and a plurality of material shoveling plates extending in the axial direction; the spiral direction of the spiral teeth is the same as the rotating direction of the rotary cylinder; a feeding hole and a flue gas outlet are respectively formed in two ends of the preheating cylinder; a dust screen is wound on the outer side of the spiral teeth opposite to the flue gas outlet; the feeding mechanism is provided with a storage barrel communicated with the feeding hole; the heating mechanism is composed of a heating burner and a radiant tube arranged outside the heating burner in a sleeving mode, a flue gas channel is arranged between the radiant tube and the heating burner, and the flue gas channel extends out of the fixed shell and is provided with a flue gas tube extending into the material storage barrel; according to the invention, the calcining efficiency and the heat utilization efficiency can be improved, and the quality of the calcined product is improved.

The utility model discloses shell drying and calcining integrated equipment, which relates to the technical field of calcining equipment and comprises a support frame, a drying box is arranged on the support frame, a first feed port is arranged at the top end of the drying box, and a crushing mechanism is arranged at the upper end of the first feed port. Exhaust mechanisms are arranged at the positions, located on the two sides of the first feeding port, of the top end of the drying box, a pushing mechanism is arranged on one side of the drying box, a drying mechanism is arranged at the position, located below the pushing mechanism, of one side of the drying box, shells are poured into the drying box through the first feeding port, the shells can be smashed through a smashing mechanism, and the drying and calcining efficiency is improved; the drying mechanism can dry shells in the drying box, the exhaust mechanism can enable heat in the drying box to circulate, the drying effect is improved, and the shells can be pushed into the calcining box to be calcined through the pushing mechanism after drying is completed.

The utility model provides a combustion furnace for uniformly calcining gypsum powder, and particularly relates to the technical field of gypsum powder processing, which comprises a protective cover, a combustion furnace, a transmission assembly and a clamping assembly, and is characterized in that the combustion furnace is arranged in the protective cover, a first motor is arranged in the center of the top of the combustion furnace, and the output end of the first motor penetrates through the combustion furnace and is fixedly connected with a stirring shaft; the stirring shaft is vertically arranged in the combustion furnace, multiple groups of stirring blades are fixedly connected to the exterior of the stirring shaft, supporting frames are arranged on the two sides of the first motor at the top of the combustion furnace, bearing connectors are arranged in the centers of the supporting frames, a main gas pipe is connected to the upper portions of the bearing connectors, and gas spraying pipes are connected to the lower portions of the bearing connectors; by means of the synergistic effect of the stirring shaft and the multiple layers of paddles and the combination of dynamic overturning of the rotatable combustion furnace body, three-dimensional, efficient and uniform mixing of gypsum powder is achieved, and by means of the matching design of the gas nozzle and the stirring track, the flame coverage range is dynamically adjusted along with the material movement path, and the calcination efficiency is improved.

The utility model relates to the technical field of calcining furnaces, and discloses a curved surface hearth type efficient heat conduction calcining furnace structure which comprises a base and a shell, the shell is fixedly connected to the upper side of the base, the left side of the shell is rotationally connected with a front side door, the left side of the front side door is rotationally connected with a motor, and the driving end of the motor is fixedly connected with a support. A rotating assembly is arranged in the front side door, a feeding opening is fixedly connected to the upper side of the front side door, a ventilation pipe is fixedly connected to the upper side of the feeding opening, a fixing assembly is designed on the upper side of the ventilation pipe, and a hose is fixedly connected to the upper side of the ventilation pipe. According to the utility model, the reverse rotation design is adopted, so that materials are prevented from being locally overheated under bidirectional disturbance, and the heat conduction and calcination quality is obviously improved; the ventilation pipe is of a convenient dismounting structure and is matched with the induced draft fan to form directional airflow, exhaust gas discharge and heat flow convergence are accelerated, and efficient and stable operation of equipment is guaranteed.

The present invention relates to the technical field of high-temperature calcining equipment of crucible furnace, and discloses a high-temperature calcining equipment and a method for using the same, comprising a calcining furnace body, the bottom surface of which is fixedly connected to a cooling box, a heat preservation mechanism is arranged on the outside of the calcining furnace body, a fixing mechanism is arranged on the top of the calcining furnace body, the heat preservation mechanism comprises a fixing frame, the inner wall of the fixing frame is fixedly connected to the outer surface of the calcining furnace body, and the inner wall of the fixing frame is fixedly connected to a heat preservation plate. The high-temperature calcining equipment and the method for using the same, by providing a multi-way pipe, the extracted heat can be transmitted through the multi-way pipe, and the one-way valve can prevent the hot gas diverted from flowing back during use, and the multi-way pipe guides the transmitted heat into the interior of the fixing frame through the connecting pipe, so that under the action of the fixing frame and the heat preservation plate, the heat inside the calcining furnace body can be effectively reduced from being lost to the outside through the outer wall.

The invention provides a calcining furnace and a calcining system with the calcining furnace, the calcining furnace comprises a plurality of baffling calcining units, the plurality of baffling calcining units are sequentially connected, each baffling calcining unit comprises a shell and a baffle plate, the shell comprises an inlet, an outlet and a baffling channel communicated with the inlet and the outlet, and the baffle plate is arranged in the shell. The inlet and the outlet are staggered in the left-right direction of the shell; the baffle plate is arranged in the baffle channel and at least shields part of the inlet. The calcining furnace and the calcining system with the calcining furnace have higher calcining efficiency, better product quality and lower energy consumption and cost, and can flexibly meet the calcining requirements of materials of different types and specifications.

The invention discloses a method for calcining limestone in a pulverized coal rotary kiln, and the processing method comprises the following steps: A, raw material preparation: selecting limestone with excellent quality and low impurity content as a main raw material, selecting high-quality pulverized coal as a fuel, the heat value of the pulverized coal is not lower than 5000 kcal / kg, the ash content is not higher than 10%, the limestone is crushed to the particle size of 0-5 mm, impurities and particles larger than 5 mm in the limestone are removed through screening equipment, the pulverized coal is dried to enable the water content of the pulverized coal to be lower than 1%, and then the pulverized coal is ground to the particle size of 0-0.074 mm so as to improve the combustion efficiency of the pulverized coal. Through raw material preparation, the quality of limestone and pulverized coal is ensured, a good foundation is provided for the subsequent calcination process, the uniformity of the materials can be improved through crushing and screening, the agglomeration and blockage phenomena are reduced, the combustion efficiency of the pulverized coal can be improved through drying and grinding, and the energy consumption is reduced.

The utility model relates to the technical field of high-temperature calcination of powder, and discloses an indirect heating type high-temperature atmosphere shaft furnace, which comprises a feeding device, a heating device and a heating device, the pushing device is connected with the feeding device and used for pushing the materials to the material storage pipe body; the material storage pipe body is a vertical cylindrical container and is internally used for accommodating and conveying materials; the heating rods are distributed in the axial direction of the material storage pipe body and used for providing a high-temperature heat source. And the heating rods are axially distributed along the material storage pipe body, so that the heating efficiency is improved, the materials are uniformly and efficiently heated, and the energy utilization efficiency is remarkably improved. Due to the arrangement of heat preservation cotton and a heat insulation layer, heat loss is effectively reduced, the temperature in the furnace is more stable, and the calcination efficiency is further improved. Meanwhile, different temperature intervals can be formed in the furnace due to the design of the thermal insulation layer, so that the requirements of different materials on temperature are met, and the applicability of the equipment is enhanced.

The utility model relates to calcining furnace technical field discloses a kind of modular assembly type calcining furnace quick maintenance structure, including calcining furnace main part, furnace tube is rotatably connected in calcining furnace main part inner wall, the right end of calcining furnace main part is fixedly connected with support plate, the top of support plate is provided with crushing box, support plate inner wall is rotatably connected with bidirectional screw rod, bidirectional screw rod is connected with crushing box by fixed component, the inner wall of crushing box is rotatably connected with driving shaft, the driving shaft is connected with driven shaft by gear assembly, the outer wall of driving shaft and driven shaft is fixedly connected with multiple crushing teeth. In the utility model, the clamping block is separated from the clamping groove inside the fixed block by the moving plate, so as to cancel the fixation of the crushing box, the crushing box can be taken down, the maintenance of the crushing box is facilitated, the maintenance efficiency is improved, and the crushed ore is crushed by the crushing teeth, the efficiency of subsequent calcination is improved.

The invention relates to the technical field of aluminum ash innocent treatment, in particular to calcination method secondary aluminum ash innocent treatment equipment which comprises a calcination mechanism, a stripping mechanism, a supporting mechanism and a driving mechanism, and the calcination mechanism comprises a calcination furnace. According to the device, aluminum ash is put into the separation barrel, then heavy metal in the aluminum ash is removed when an air cylinder is controlled to drive an iron rod to go in and out of the separation barrel in a reciprocating mode according to the electromagnet principle, then an electric push rod is started, a supporting plate jacks the separation barrel to ascend, a furnace cover connected with the separation barrel is opened, and then a telescopic pipe at the bottom of the separation barrel slides downwards; the bottom end of the telescopic pipe is aligned with the interiors of the calcining furnaces, so that the aluminum ash can accurately slide into the calcining furnaces, then after each calcining furnace is filled with raw materials, the movable end of the electric push rod is controlled to contract, then the calcining furnaces are closed by the furnace cover, heavy metal stripping and feeding can be completed at one time, the calcining time of the aluminum ash is shortened, and the use comfort is improved.

The application belongs to the technical field of Maerz kiln, and discloses a high-efficiency energy recycling Maerz kiln, which comprises a kiln, a storage tank, a material guide plate, an igniter, a back smoke pipe and a back smoke assembly, the kiln is provided with two and is communicated through a connecting channel, the kiln is sequentially provided with a preheating zone, a calcination zone and a cooling zone from top to bottom, the storage tank is sleeved on the outer side of the kiln, the material guide plate is fixed on the position of the inner wall of the kiln near the bottom of the storage tank, the side wall of the kiln is provided with a material guide pipe for enabling the material in the storage tank to fall on the material guide plate, the igniter is arranged in the kiln and is used for calcining the material falling from the material guide plate into the calcination zone, the back smoke pipe extends to the position near the top of the kiln through the preheating zone, the back smoke assembly is arranged outside the kiln and enables the high-temperature flue gas generated in the calcination to be discharged to the storage tank through the back smoke pipe, so that the material in the storage tank is preheated. The application realizes the technical effects of stable material conveying, efficient calcination and energy recycling.

This application relates to the field of new energy material preparation technology, and in particular to a high-efficiency and energy-saving calcination device for recycled ferric phosphate, comprising a base, a calcination mechanism at the top of the base, and a discharge mechanism at the bottom of the calcination mechanism. This invention utilizes components such as a rotary kiln shell, a heating furnace shell, an electric heating module, and electric heating tubes. Through the annular heating cavity formed between the heating furnace shell and the rotary kiln shell, and the electrical connection between the electric heating module and the electric heating tubes, the electric heating tubes can uniformly heat the calcined material within the rotary kiln shell via heat transfer oil. The heat transfer oil circulates and conducts heat within the annular heating cavity, avoiding uneven local temperatures. This achieves the effect of fully and uniformly calcining the screened recycled ferric phosphate raw material through efficient heat conduction, improving calcination quality and efficiency.

The utility model provides a high-temperature calcining furnace for waste metal processing, and belongs to the technical field of waste metal processing. The high-temperature calcining furnace for waste metal processing comprises a furnace body, a feeding channel and a crushing mechanism, the crushing mechanism comprises a first motor, a driving shaft, a driven shaft, a gear, a crushing roller and crushing teeth, and the first motor is fixedly connected to the top of the furnace body; the driving shaft is fixedly connected to the output end of the first motor; the gears are fixedly connected to the outer wall of the driven shaft and the outer wall of the driving shaft correspondingly, and the two gears are connected in a meshed mode. The crushing rollers are fixedly connected with the driven shaft and the driving shaft respectively; the crushing teeth are fixedly connected to the outer walls of the crushing rollers, the first motor is started, the output end of the first motor drives the driving shaft to rotate, under transmission of the gear, the driven shaft rotates reversely, then the two crushing rollers drive the two groups of crushing teeth to rotate reversely, waste metal is crushed, and the calcining efficiency is improved.

The invention relates to a lime kiln top material distribution device, and relates to the technical field of lime processing, the lime kiln top material distribution device comprises a hopper, the bottom of the hopper is provided with a central discharge pipe; the center discharging pipe can rotate relative to the hopper, and a first driving assembly used for driving the center discharging pipe to rotate is further arranged. The bottom of the center discharging pipe extends to form an extending discharging pipe, the extending discharging pipe is sleeved with a sliding sleeve, and two internal discharging holes are formed in the extending discharging pipe. A second driving assembly for driving the sliding sleeve to vertically move is arranged on the central discharging pipe; two outer ring discharging pipes are mounted in the circumferential direction of the central discharging pipe in a communicating manner; two inner ring discharging pipes are mounted on the sliding sleeve in a communicating manner, and the inner ring discharging pipes are matched with the corresponding inner discharging holes for use; and a guide piece is arranged in the extending discharging pipe and used for guiding the raw materials into the inner ring discharging pipe. The raw material distribution device has the advantage of improving the raw material distribution effect.

This application discloses a desulfurized gypsum circulating calcination system, including a stirring and circulating device with a stirring inlet and a stirring outlet, a fluidized bed furnace connected to the stirring outlet, an air distribution plate set at the bottom of the fluidized bed furnace, a blower facing the air distribution plate and used to blow the material inside the fluidized bed furnace, and a material collection mechanism connected to the outlet of the fluidized bed furnace. The fluidized bed furnace is provided with a first circulation port, which is connected to the stirring inlet of the stirring and circulating device. By setting a material circulation path between the fluidized bed furnace and the stirring and circulating device, the reflux and reprocessing of insufficiently calcined material can be realized, which effectively improves the fluidization state of the material, calcination efficiency and finished product quality, and enhances the stability of system operation.

An automatic material distributing device of a petroleum coke calcining furnace comprises a stock bin and the petroleum coke calcining furnace, the petroleum coke calcining furnace is located below the stock bin, a material distributing device is arranged between the stock bin and the petroleum coke calcining furnace, the material distributing device comprises a transition section, a bearing, a supporting plate, a rotating groove and a rotating groove driving device, and the transition section is located below the stock bin; the bearing is arranged between the supporting plate and the transition section, the rotating groove is fixedly connected to the lower portion of the transition section, the rotating groove driving device drives the rotating groove to rotate around the axis of the transition section, the rotating groove is provided with an inclined blocking device capable of changing the discharging direction of raw materials, and the petroleum coke calcining furnace is located on the lower portion of an outlet of the rotating groove. According to the automatic material distributing device for the petroleum coke calcining furnace, through the rotating groove driving device and the inclined blocking device arranged on the rotating groove, the material distributing precision and the calcining efficiency are improved; by arranging the telescopic cylinder, the adjusting speed of the discharging direction of the raw materials is increased; and heat insulation layers are arranged on the upper baffle and the lower baffle, so that the service life of the inclined blocking device is prolonged.

The present invention discloses an industrial kiln based on a furnace uniform air intake structure, including a kiln and a driving mechanism, wherein the kiln includes a kiln body, two partition doors and two rail cars, two groups of partition door guide grooves are fixedly installed on the inner wall of the kiln body, the two partition doors are slidably installed on the two groups of partition door guide grooves, the two rail cars are slidably installed on the bottom of the kiln body, and the opposite ends of the two rail cars are fixedly installed with convex rods; the driving mechanism includes two mounting plates, a screw rod, a rack, a screw slider, a linkage assembly and a partition door frame, the two mounting plates are fixedly installed on the two ends of the kiln body, the screw rod is rotatably installed between the two mounting plates, the rack is slidably installed on one side of the kiln body, and the two ends of the rack are installed with pull rods, and the linkage assembly can drive the partition door to rise along the partition door frame. Through the above-mentioned structural arrangement, the present invention can quickly complete material replacement, improve calcination efficiency, and reduce heat dissipation.

The utility model discloses a photovoltaic panel resource utilization system suitable for a construction site, which comprises an outer frame disassembling machine, a second conveyor is fixedly arranged at the discharge end of the outer frame disassembling machine, and a power supply box disassembling machine is fixedly connected to one end, far away from the outer frame disassembling machine, of the second conveyor. According to the utilization system suitable for photovoltaic panel recycling on the construction site, waste gas is guided into the filter box through the gas guide pipe, and the waste gas can be filtered through matched arrangement of the first filter screen, the second filter screen and the activated carbon adsorption screen, so that the utilization rate of the photovoltaic panel recycling is improved, and the utilization rate of the photovoltaic panel recycling is improved. According to the invention, waste gas is introduced into the preheating box, solid particles in the waste gas are filtered out, then the filtered waste gas is introduced into a plurality of heat exchange pipes, and heat exchange treatment is carried out on air in the preheating box, so that the temperature in the preheating box is increased, preheating treatment can be carried out on the photovoltaic panel, the calcination efficiency is improved, waste heat of the waste gas can be recycled, and heat waste is avoided.

This utility model relates to the field of lithium sulfide production technology, specifically a high-purity lithium sulfide preparation system. It includes: a material mixing unit; the outlet of the material mixing unit is connected to the inlet of a heating and drying unit; the outlet of the heating and drying unit is connected to the inlet of a fine crushing unit; the outlet of the fine crushing unit is connected to the inlet of a calcining unit; the outlet of the calcining unit is connected to the inlet of a dispersing unit; the outlet of the dispersing unit is connected to the inlet of a processing unit; the material mixing unit, heating and drying unit, fine crushing unit, calcining unit, dispersing unit, and processing unit are all connected to an inert atmosphere conveying device. This utility model, through the organic connection of the material mixing unit, heating and drying unit, fine crushing unit, calcining unit, dispersing unit, and processing unit, constructs a complete high-purity lithium sulfide production line, significantly improving production efficiency and product consistency, and is suitable for large-scale industrial production.

This utility model relates to the field of quartz glass powder calcination technology, specifically disclosing a quartz glass powder calcination device with waste heat circulation. The device includes a base, and above the base, from left to right, are a feeding mechanism, a calcination mechanism, and a cooling mechanism. A fan draws outside cold air through a notch into the cooling chamber, allowing the cold air to exchange heat with the quartz glass powder. While cooling the quartz glass powder, the cold air is simultaneously heated. A stepped conveying system enables rapid cooling of the quartz glass powder, effectively improving the calcination efficiency. Hot air enters the calcination inner cylinder through a discharge pipe, mixing with the flue gas inside. The mixed flue gas is then conveyed to the preheating outer cylinder through a gas conveying pipe, where the heat from the mixed flue gas preheats the quartz glass powder in the conveying inner cylinder. This allows for the recovery and recycling of the heat contained in the discharged flue gas and the quartz glass powder after calcination.

The present application relates to the technical field of phosphogypsum production, and specifically discloses a method for preparing phosphogypsum, comprising the following steps: step (1), feeding the phosphogypsum quantitatively into a drying device by a feeder for preliminary drying at 150-180°C for 5-25 minutes to reduce the moisture in the phosphogypsum; step (2), sending the preliminarily dried phosphogypsum into a ball mill for grinding, and sieving the ground phosphogypsum powder through a sieve with a mesh diameter of 5-150 μm; step (3), sending the phosphogypsum powder into a calcining furnace through a conveyor belt for calcination to obtain relatively pure phosphogypsum. The purpose of this patent is to solve the problem of phosphogypsum agglomeration when removing impurities from calcined phosphogypsum.

The invention discloses an energy-saving lime kiln for producing printing ink calcium, which comprises a kiln body, feeding chambers are arranged on both sides of the kiln body, feeding mechanisms are arranged in the feeding chambers, a gas supply chamber is arranged below the kiln body, a gas supply pipeline is arranged in the gas supply chamber, a flue is arranged above the kiln body, and the flue is connected with a heat exchanger through a waste gas pipe. A hot air outlet pipe of the heat exchanger is respectively communicated with the feeding chamber and the air supply pipeline; a plurality of combustion fire grates which are distributed in a left-right and up-down staggered mode are arranged in the furnace body, blanking gaps are formed in the combustion fire grates, an inclined material guide plate is arranged between the upper combustion fire grate and the lower combustion fire grate, a combustion-supporting pipe is arranged between the left combustion fire grate and the right combustion fire grate, and air outlet branch pipes corresponding to the combustion fire grates respectively are arranged on the combustion-supporting pipe. The device has the characteristics that the raw material combustion sufficiency and uniformity are improved, and energy is saved.

The high-temperature coke calcining and crushing device comprises a calcining furnace, the top of the calcining furnace is open and abuts against a liftable furnace cover, the furnace cover is communicated with a feeding hopper, a double-roller crushing mechanism is installed on the upper portion of the feeding hopper, a jacket is arranged on the outer side of the calcining furnace, and a hollow ball is detachably arranged at the inner bottom of the calcining furnace. A double-shaft-extension motor is arranged in the upper portion of the hollow ball, a driving bevel gear fixedly sleeves an output shaft on the lower side of the double-shaft-extension motor, a rotating shaft is fixedly connected to an output shaft on the upper side of the double-shaft-extension motor, and a plurality of transverse stirring shafts are rotationally arranged in the middle of the hollow ball; one end of the transverse stirring shaft is fixedly sleeved with a driven bevel gear vertically meshed with the driving bevel gear, a plurality of square stirring frames are fixedly connected to the peripheral side of the part located outside the hollow ball, net-shaped stirring pieces are fixedly connected to the inner sides of the square stirring frames, and the top end of the rotating shaft extends out of the hollow ball and is fixedly connected with a square rotating frame. According to the invention, the integration of crushing and calcining can be realized, and the overall processing efficiency and quality are better.

The utility model relates to the technical field of calcium oxide production, and discloses an efficient calcium oxide calcining furnace which comprises a device main body, a cover plate is arranged at the top of the device main body, a calcining furnace main body is arranged in the device main body, and a heating assembly covering the calcining furnace main body in all directions is arranged outside the calcining furnace main body. And the heating assembly comprises a driving motor, an electric heating wire, an inner bracket, a limiting groove, a stirring rod, a connecting port and a linkage shaft. According to the efficient calcium oxide calcining furnace, the electric heating wire, the connecting port, the inner support, the limiting groove, the linkage shaft and the stirring rod are arranged, so that the connecting force between the electric heating wire and the calcining furnace body is enhanced, and the situation that the heating effect is affected by dislocation of the electric heating wire after long-time use is avoided; however, the problems that the heating range is limited, uneven heating is easily caused, the later reaction effect is affected, fixing force cannot be provided for the electric heating wire, and meanwhile the heating efficiency is reduced due to too fast heat loss are solved.

The invention relates to the field of calcination, and particularly provides a calcined sand turning mechanism and a calcination device. The calcined sand turning mechanism comprises a base; the outer cylinder is horizontally arranged along the axis of the outer cylinder, the outer cylinder is rotatably arranged on the base, and the side wall surface of the outer cylinder is wavy; the inner cylinder is rotatably arranged in the outer cylinder and is coaxial with the outer cylinder, and the side wall surface of the inner cylinder is wavy; the springing devices are telescopically arranged on the side wall of the inner cylinder; the multiple springing devices are arranged in the circumferential direction of the inner cylinder at intervals and are perpendicular to the side wall face of the inner cylinder. According to the scheme, the side walls of the inner cylinder and the outer cylinder of the calcined sand turning mechanism are both arranged to be wavy, and the telescopic springing device is arranged on the side wall surface of the inner cylinder, so that in the calcining process, turning of materials in the inner cylinder and the outer cylinder is more irregular; therefore, the situation that large-size materials are accumulated on the upper portion and small-size materials are deposited on the lower portion is weakened, the calcination quality is improved, and the calcination efficiency is improved.

A calcination method and an intermittent kiln belong to the field of inorganic non-metallic material processing. The calcination method includes: obtaining a first reference condition; calcining the processing object, and during the calcination process, continuously collecting and correspondingly obtaining a first working condition; and controlling the calcination condition according to the trigger condition. The scheme can shorten the analysis cycle of the calcination process and improve the analysis quality.