7results about How to "Improve calcination efficiency" patented technology

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 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 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.

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.

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.