2408 results about "Kiln" patented technology

The invention relates to the technical field of industrial process control, and discloses a denitration intelligent monitoring method and system based on data analysis and a storage medium. The method comprises the following steps: performing working condition identification by using an improved K-means algorithm to obtain stable operation, fire change preparation, fire change proceeding and fire change recovery modes; matching a segmented control strategy according to an identification result, and carrying out weighted fusion on feedforward and predictive control in a fire exchange preparation stage to generate a differentiated liquid ammonia regulation instruction; the disturbance feed-forward compensation amount is calculated in combination with the combustion state of the kiln, the adjusting instruction is restrained, and a liquid ammonia control instruction is obtained; the execution effect is monitored in real time through standardized deviation detection, manual intervention is switched in case of abnormity, and control parameters are fed back and updated in case of normal. The problems that NOx control lags behind and liquid ammonia consumption is not economical under the fire exchange working condition are solved, and the control precision and the self-adaptive capacity of the denitration system are improved.

The invention relates to the technical field of tunnel engineering prefabricated part production, in particular to a large-diameter duct piece independent kiln assembly line conveying prefabricating method and system. S2, a reinforcement cage and an embedded part are installed; s3, concrete is precisely poured and vibrated; s4, pre-curing and surface treatment; s5, carrying out roller way type flow conveying; s6, hydration heat-driven dynamic maintenance is carried out; and S7, demolding and finished product detection. And S8, mold circulation. According to the large-diameter duct piece prefabricating production line, through technical innovation in multiple aspects of mold, conveying, maintenance, control and the like, the core technical problem in existing large-diameter duct piece prefabricating production is solved, high-precision, high-efficiency, low-energy-consumption and green production of large-diameter duct pieces is achieved, and the large-diameter duct piece prefabricating production line has remarkable technical advantages and wide application prospects and is suitable for large-diameter duct piece prefabricating production. The method can be widely applied to infrastructure construction projects such as shield tunnels, open caisson projects and underground comprehensive pipe galleries.

The invention discloses a preparation process of a sintering kiln silicon carbide guide roller with thermal shock resistance and high-temperature corrosion resistance. The process comprises the following steps: sequentially carrying out surface pretreatment such as reticulate pattern laser engraving, sand blasting and cleaning and drying on a silicon carbide guide roller substrate; performing plasma spraying on a pure aluminum oxide coating after preheating; carrying out segmented laser remelting on the coating to improve the compactness; and finally, coating the nano silicon carbide slurry, calcining and curing. The thermal shock resistance and the high-temperature corrosion resistance of the guide roller are remarkably improved by enhancing the binding force of the coating through laser engraving, optimizing the density of the coating through laser remelting and combining post-treatment of nano silicon carbide slurry, and the service life of the guide roller in a lithium battery positive electrode material sintering kiln is prolonged.

The invention relates to the technical field of lime shaft kilns, in particular to a full-automatic Kawasaki rotating lime shaft kiln device, and aims to solve the problems that during combustion of an existing lime shaft kiln, due to the fact that flame heat is concentrated on a local part, a disordered and uniform temperature field cannot be formed, and the calcination temperature of limestone is not uniform; limestone processing is achieved through the combustion mechanism on the supporting seat, the soaking assembly in the thermal insulation shell guides materials and cooperates with the combustion assembly for preheating, a flame jet device of the combustion assembly jets flames, the flames act with heating gas blown out by the high-pressure air pump to form a uniform temperature field, and the material guiding plate guides the materials to enter the rotating processing part. And the processing component disperses the materials through the rotating and material uniformizing assembly, so that the limestone is uniformly heated, and the uniform effect during limestone calcination is improved.

The invention relates to the technical field of non-ferrous metal smelting flue gas treatment and resource utilization, and discloses a non-ferrous metal smelting multi-source flue gas efficient mixing and intelligent regulation and control method and system.The method comprises the steps that flue gas from different kilns enters a main flue through a multi-source flue gas branch regulation and control unit, and through rotational flow momentum, the multi-source flue gas enters the main flue; the basic consistency of each source flue gas structure is achieved; carrying out real-time evaluation on the mixed smoke on a key section; the multi-point sensor array continuously measures data and calculates a uniformity index to realize instant identification of flow field uniformity, time stability and local anomaly; based on measurement data, the intelligent control and operation optimization unit solves a comprehensive performance function in real time on a DCS / PLC platform. The system comprises a plurality of flue gas outlets, a top-blown furnace discharge outlet, a multi-source flue gas branch regulation and control unit and an annularly-collected flue gas total outlet. According to the method, the influence of inlet disturbance on the mixing quality is regulated and reduced from the source.

The invention discloses an industrial equipment linkage control system based on dynamic time sequence reconstruction, relates to the technical field of kiln linkage control, solves the technical problems that a multi-system collaborative dynamic time sequence reconstruction capability is lacked and chain reaction caused by disturbance coupling is difficult to solve, and provides an industrial equipment linkage control system based on dynamic time sequence reconstruction by distinguishing humidity abnormal levels and customizing a heating strategy. The method ensures that heat release is completely matched with a wet material transmission rhythm, improves product drying uniformity, accurately calculates retention time and rotation speed according to a kiln type, realizes a'moisture evaporation demand-rotation speed-retention time 'closed loop, reduces energy consumption, integrates real-time material parameters, waste heat recovery and environment heat dissipation, accurately calculates a heat gap, and performs graded response, so that the energy consumption is reduced, and the energy consumption is reduced. And finally, a cooling air volume-pressure correlation model and an induced draft fan compensation-pressure repair model are established, accurate pressure compensation during cooling strengthening is achieved, and the stability of the microenvironment in the kiln is improved.

The utility model discloses a lepidolite spodumene roasting flue gas multi-pollutant efficient treatment device which comprises a high-temperature dust removal and denitration integrated tower, a fan, a flue gas deacidification tower and a flue gas heat exchanger, the high-temperature dust removal and denitration integrated tower is communicated with a kiln tail of a roasting kiln, and a cooling section of the flue gas heat exchanger is communicated with the high-temperature dust removal and denitration integrated tower and the fan. Flue gas is subjected to heat exchange in the cooling section and then conveyed to the flue gas deacidification tower through a fan, a gas outlet of the flue gas deacidification tower is communicated with the heating section of the flue gas heat exchanger, the flue gas is subjected to heat exchange with flue gas of the high-temperature dust removal and denitration integrated tower in the flue gas heat exchanger to be heated, and the flue gas is discharged through a chimney communicated with the heating section on the flue gas heat exchanger. The device disclosed by the utility model can be used for cooperatively treating various pollutants including dust, SO2, HF, HCL, nitrogen oxides, dioxin, heavy metals and the like, so that high-efficiency treatment on flue gas is realized, and good economic benefits are achieved.

The invention discloses an automatic monitoring method for an industrial solid waste treatment process, and the method comprises the steps: synchronously collecting a temperature distribution matrix, a gas concentration spectrogram, a kiln body vibration spectrum and a material rheological image in the solid waste treatment process, constructing a multi-source heterogeneous data set, and carrying out the time-space alignment preprocessing; based on a preset solid waste component feature code, calling a process parameter reference value, and performing self-adaptive correction in combination with the material rheological image features to generate a personalized reference set; fusing the multi-modal monitoring data to generate a solid waste reaction process three-dimensional state model, extracting core feature parameters, comparing the core feature parameters with a personalized reference set, and screening abnormal features; inputting the abnormal features into a pre-trained abnormal diagnosis model, and when an abnormal probability value exceeds a preset threshold value, triggering early warning and generating an abnormal identifier; according to the method and the system, intelligent monitoring and regulation of the industrial solid waste treatment process are realized, and the stability, the safety and the treatment efficiency of the treatment process are comprehensively improved.

The invention relates to the technical field of concrete curing, in particular to an intelligent control method and system for a precast concrete component curing kiln, and the method comprises the steps: obtaining historical and real-time environment parameters of the curing kiln, generating monitoring data with an identifier in combination with a component type and a current process stage, and matching a corresponding preset temperature and humidity regulation and control model. And optimizing the model by using a historical temperature and humidity response sample and component strength increase data to generate a personalized target temperature and humidity regulation and control model. And analyzing real-time parameters based on the model, outputting a control instruction containing a target temperature rise rate, a humidity threshold value and heat preservation time, and converting the control instruction into a kiln body adjustment control signal according to a dynamically adjusted execution rule. And finally, sending to an execution terminal to realize cooperative regulation and control of heating, humidification, ventilation and heat preservation systems. According to the method, multi-source data and process characteristics are fused, the adaptive learning ability is achieved, the maintenance environment can be accurately regulated and controlled, and intelligent, refined and efficient operation of the maintenance process is achieved.

The invention discloses ceramic cup firing forming equipment, and relates to the technical field of firing forming equipment, the ceramic cup firing forming equipment comprises a kiln and a base, the base penetrates through the kiln, a rotatable ceramic roller bar is installed on the base, a supporting frame is placed at the top end of the ceramic roller bar, the ceramic roller bar is used for driving the supporting frame to be conveyed from a kiln head to a kiln tail, and the ceramic roller bar is used for driving the supporting frame to rotate. The supporting frame is composed of a bottom plate and a supporting plate and comprises a connecting mechanism and a limiting mechanism. By arranging a connecting mechanism and a limiting mechanism, a cup body is placed at the top end of a grid plate, a supporting plate is assembled above a bottom plate, at the moment, a transverse rod moves, a sliding rod slides in an inclined groove to drive a vertical rod to move upwards, the vertical rod drives a limiting frame to move, and the limiting frame moves to drive a limiting groove to move to the outer side of the bottom of the cup body; and the limiting groove is used for limiting the cup body, so that the ceramic cup can be conveniently limited in the firing process, and the cup body is prevented from shifting in the firing process.

The utility model relates to the technical field of glass production, in particular to a feeding device of a kiln for glass production, the kiln is provided with a feeding table, the feeding table is used for temporarily placing materials, the kiln is provided with a feeding port, and the materials enter the feeding port through the feeding table; the feeding device comprises a rack, a feeding mechanism and a pushing mechanism, and the feeding mechanism and the pushing mechanism are arranged on the rack; the feeding mechanism is used for conveying materials to a feeding table of the kiln, and the pushing mechanism is used for pushing the materials into a feeding port of the kiln. According to the device, materials are conveyed to the feeding table through the feeding mechanism, and the materials are pushed into the kiln through the pushing mechanism; therefore, the influence of high temperature in the kiln on the feeding device is reduced, the materials can be accurately fed into the kiln, and the production efficiency of glass products is improved.

The invention relates to the technical field of kiln combustion control, and discloses a dynamic tar blending combustion proportion optimization control method and system. Comprising the following steps: collecting kiln system data to obtain a standardized working condition data set; inputting the multi-layer perceptron model to obtain a combustion stability score; when the score is lower than a stable threshold value, triggering risk assessment: extracting kiln load micro fluctuation characteristics from the data set, classifying shutdown risk levels by using a support vector machine algorithm model, and determining a high-risk early warning signal; based on the signal correlation current working condition, a historical optimal blending combustion proportion in a corresponding historical adjustment record is called, a deviation value is calculated in combination with the current blending combustion proportion, and a preliminary proportion adjustment suggestion value is obtained; and iterative correction is started, real-time fuel characteristic change and a combustion state prediction result are fused for step-by-step adjustment, a correction proportion is input into a multi-layer sensor to calculate a stability score, and an optimization control scheme is output after the stability score reaches the standard. According to the method, the tar blending combustion proportion is dynamically optimized, the combustion stability of the kiln is effectively improved, and the shutdown risk is reduced.

The invention relates to the technical field of lime manufacturing, and provides a process and a system for manufacturing high-purity lime. The process comprises the steps of raw material pretreatment, plasma surface pretreatment, segmented atmosphere calcination, sound wave reinforced mass transfer, heat energy comprehensive utilization and intelligent control, rapid cooling, flue gas treatment and finished product packaging. The system comprises a raw material pretreatment unit, a plasma surface pretreatment unit, a multi-section gradient atmosphere calcining kiln, a sound wave reinforced mass transfer system, a heat energy comprehensive utilization and intelligent control system, a carbon dioxide capturing and recycling unit and a finished product cooling and packaging unit. Through raw material deep purification, surface activation treatment, gradient calcination and atmosphere accurate control, sound wave mass transfer reinforcement, intelligent optimization regulation and control, rapid cooling and flue gas purification and resource recovery, the purity and the reaction activity of a calcium oxide product are synergistically improved, and the production energy consumption and pollutant emission are remarkably reduced; and high-efficiency, clean and resource production of the high-purity lime is realized.

The invention discloses a one-kiln two-line production process for energy-saving glass, and relates to the technical field of energy-saving glass plate production. A shunting pressure stabilizing chamber, a central partition wall and an electromagnetic-platinum combined stirring device are arranged at the tail end of a melting furnace, and are matched with prolonging of clarification residence time and a microbubble bubbling device, so that a highly uniform temperature field and component distribution can be obtained before molten glass enters a feeding channel, and bubbles and inclusions are fully eliminated. By means of the collaborative measure, the melt cleanliness is remarkably improved, optical defects such as stripes, stones and white points in the subsequent forming process are greatly reduced, and the appearance and the physical strength of a finished product are more reliable. By means of the Y-shaped double feeding channels and the independent temperature control tin bath, ultra-thin glass and medium-thickness glass can be produced at the same time in the same melting furnace and do not interfere with each other. The main line focuses on the flatness and the optical quality of the energy-saving glass of the building curtain wall, and the branch line focuses on the thickness control and the surface smoothness of the ultrathin energy-saving glass.

The application discloses a kind of kiln flue gas waste heat grading circulation power generation method and system, adopt multi-stage purification and temperature utilization combination, first, kiln flue gas is carried out component analysis and desulfurization purification treatment, establish layered purification chain and identify acid dew point area, form safe purification flue gas area by material adaptability evaluation and corrosion control measure;Then, temperature gradient analysis and temperature field reconstruction are carried out to purified flue gas, establish heat grade distribution mechanism and form cascade thermal energy flow, realize the complementary use of different temperature section heat source;Further, build the cascade power generation system of water vapor main cycle and organic working medium auxiliary cycle, integrate magnetic suspension bearing technology to improve auxiliary cycle power generation efficiency;Through heat matching degree monitoring and mismatch detection, establish heat balance parameter and optimize circulation network;Finally, build energy transfer matrix, through generator coupling analysis and speed coordination control, form distributed power generation configuration and complete stable electric energy output, realize the efficient use of waste heat.

The invention relates to the technical field of high-temperature sintering, and particularly discloses a gradient composite kiln furniture based on spinel interface strengthening and a preparation method thereof. Wherein the kiln furniture sequentially comprises a mullite matrix layer, a silicon carbide enhancement layer and a zirconium oxide high-temperature-resistant layer from outside to inside, and the layers are chemically bonded through an in-situ generated MgAlO spinel interface layer. The preparation method comprises the following steps: carrying out layered tape casting on gradient slurry, carrying out isostatic pressing lamination molding, generating an MgSi transition phase at 1380-1420 DEG C through a stepped sintering process, and heating to 1600-1650 DEG C at a specific heating rate to form a continuous spinel interface. According to the kiln furniture, gradient component design cooperates with spinel interface strengthening, the problem of interface stripping caused by thermal expansion mutation of a traditional double-layer structure is solved, and the kiln furniture has excellent thermal shock stability and high-temperature strength retention rate. According to the preparation method, precise construction of the spinel interface is realized through staged reaction control.

The invention belongs to the technical field of kilns, and particularly relates to a large-scale top-loading dynamic calcining kiln which comprises a kiln body, the kiln body is of a vertical structure, a calcining area is arranged in the kiln body, a pusher is arranged at the bottom of the kiln body, and the large-scale top-loading dynamic calcining kiln is characterized in that a feeding port is formed in the top of the kiln body, the upper portion of the feeding port is communicated with a storage bin, and an electric valve is arranged on the feeding port; a material flow divider is arranged below the feeding hole, and a preheating dehydration area, a calcining area and a cooling area are sequentially arranged below the flow divider; a plurality of groups of internal heating type combustion units are arranged in the calcining area side by side, two or more layers of combustion chambers are arranged in each internal heating type combustion unit, a horizontal duplex flame path is arranged below each combustion chamber, a smoke chamber is arranged above each horizontal flame path, and a smoke hole array with an outlet facing downwards at an included angle of 25 degrees is formed in the side wall of each smoke chamber; the top of the internal heating type combustion unit is provided with a full-length sharp ridge, and the included angle of the top of the sharp ridge is 60 degrees. The method has the advantages that the problem of calcination of light magnesium oxide products with different granularities in the magnesite is solved, and the large-scale production target of annual output of 100,000 tons is met.

The invention discloses a sintering method spherical mullite-zirconium oxide composite high-temperature kiln lining material, and belongs to the technical field of high-temperature-resistant materials. Mesoporous spherical mullite particles are used as a matrix, zirconium oxide hollow fibers are used as a reinforcing phase, the material is prepared by sintering, and the material belongs to an advanced inorganic non-metallic material, belongs to a fireproof and heat-insulating special brick and tile material, and is suitable for equipment such as energy-saving smelting furnaces and high-temperature kilns. The mesoporous spherical mullite particles are matched with the zirconium oxide hollow fibers, so that the apparent porosity of the material is greatly improved, and the volume density and the heat conductivity coefficient of the material are reduced; and the strength of the material is remarkably enhanced through the zirconium oxide hollow fibers.

The invention discloses a glass kiln bottom temperature control method and system and a glass kiln, and belongs to the technical field of glass kilnes.Temperature information of each detection point is obtained from a plurality of detection points between the bottom of a melting pool and a working pool, and deviation and trend related to the temperature of the detection point are calculated according to the temperature information; the deviation of all the detection points is subjected to weight calculation to obtain the comprehensive deviation of the temperature, the trend of all the detection points is subjected to weight calculation to obtain the comprehensive trend of the temperature, the arch top temperature adjustment amount is obtained through the comprehensive deviation and the comprehensive trend calculation, and control linkage of the pool bottom temperature and the arch top temperature is achieved. After the target temperatures of a plurality of detection points are manually set, the pool bottom temperature and the arch top temperature control are automatically adjusted and fed back, so that the dependence of pool bottom temperature adjustment on manual trend judgment is reduced, the pool bottom temperature is automatically controlled, the stability of the pool bottom temperature is improved, and the fluctuation range of the glass liquid temperature is further reduced.

The invention provides a ceramic green body based on lithium slag and wollastonite, a ceramic tile and a preparation method, and the ceramic green body comprises the following raw materials by weight: 25-35% of clay, 15-25% of lithium slag, 10-20% of wollastonite tailings, 15-25% of potassium-sodium feldspar, 15-25% of quartz, 0-3% of calcium phosphate, and 0.5-0.8% of a dispergator. The lithium slag and the wollastonite tailings are doped into the formula of the ceramic body, a low-aluminum high-calcium billet system is established by combining the clay, the potassium-sodium feldspar, the quartz and the auxiliary raw materials, and the characteristics of the lithium slag and the wollastonite are utilized, and the formula of the ceramic body is adjusted and optimized, so that the low-aluminum high-calcium ceramic body is obtained. The low-aluminum high-calcium green body formula which is low in firing temperature, wide in firing range and easy to control kiln firing can be obtained, energy consumption is remarkably reduced, the utilization rate of the lithium slag and the wollastonite tailings is increased, the production cost of ceramic tiles is reduced, and meanwhile the strength of ceramic products is improved.

A method to solidify cremation remains includes milling the cremation remains to a reduced particle size, adding water to the cremation remains to produce a mixture; shaping the mixture into wet ware having a desired shape, drying the wet ware to greenware that is sufficiently dry for firing, and firing the greenware in a kiln until solidified to one or more cremains solids consisting of the cremation remains. A product formed of solidified cremation remains is also disclosed.

The invention discloses an efficient desulfurization structure for kiln tail flue gas, and relates to the technical field of kiln tail flue gas desulfurization. The high-efficiency desulfurization structure for the kiln tail flue gas comprises a desulfurization tower, a gas inlet flue communicated with the left part of the desulfurization tower and a gas exhaust flue communicated with the upper part of the desulfurization tower, the desulfurization tower is provided with a multi-dimensional spraying part used for adjusting the longitudinal spraying range and the radial spraying range of a desulfurization water agent according to the concentration and the flow speed of the kiln tail flue gas, and an inner ring pipe is fixedly connected with a ring sleeve; a plurality of fixed arc-shaped baffles are fixedly connected to the upper portion of the inner ring pipe in the circumferential direction at equal intervals, and a plurality of movable arc-shaped baffles used for being matched with the fixed arc-shaped baffles are fixedly connected to the outer wall of the sliding sleeve in the circumferential direction at equal intervals. And full-coverage spraying of the desulfurization water agent in the flue is realized through the multi-dimensional spraying part, and the spraying range can be dynamically adjusted according to the flue gas concentration and the flow velocity, so that efficient desulfurization is realized.

The utility model provides an efficient casing pipe type internal heating drum cracking furnace kiln which comprises a heat energy device, a sealed material conveying device, a furnace cylinder system and a roller system, the furnace cylinder system comprises an outer kiln pipe, an inner kiln pipe is fixedly connected in the outer kiln pipe, and the front end of the inner kiln pipe is fixedly connected with the sealed material conveying device. The rear end of the inner kiln pipe is further fixedly connected with a spiral sealing deslagging mechanism, a cracking gas leading-out pipe is inserted into the rear end of the spiral sealing deslagging mechanism, and the rolling belt of the outer kiln pipe is in rolling connection with the rolling wheel system. The rotational flow plate is designed on the outer wall of the inner kiln pipe, high-temperature hot air rotates and flows around the inner kiln pipe, the outer surface of the inner kiln pipe is subjected to uniform thermal radiation, the heat collecting pieces are uniformly arranged on the outer wall of the inner kiln pipe, the heat collecting area of the inner kiln pipe is increased, the standing time of the hot air in the hot air channel is prolonged, and the heat collecting effect is improved. The heat collecting efficiency of the inner kiln pipe is improved by 30%-40%, and the heat energy utilization rate and the thermal cracking gasification efficiency are improved.

The application discloses a belt roaster with staged utilization of hot air in a staged cooling process, comprising: a blast drying section, an exhaust drying section, a preheating section, a roasting section, a soaking section, a first cooling section, a second cooling section and a third cooling section in sequence along the direction of material flow; wherein the hot air generated by the first cooling section, the second cooling section and the third cooling section has a temperature of not less than 1100 DEG C, 600-800 DEG C and not more than 300 DEG C respectively, and the hot air is delivered to the roasting section, the preheating section and the blast drying section through pipelines respectively. The application can fully recover high-temperature waste gas, the hot air with different temperatures is applied to suitable process sections, the energy utilization rate is improved, and low-calorific-value fuel can be used while reducing process energy consumption by combining gas preheating or oxygen-enriched primary air / full-oxygen combustion.

The invention relates to a heat treatment method and device, computer equipment, a computer readable storage medium and a computer program product. The method is applied to the roller kiln, and at least one sagger and a plurality of temperature control devices are arranged in the roller kiln. The method comprises the following steps: acquiring space temperature distribution data of the roller kiln; according to the space temperature distribution data, target material distribution of the materials to be subjected to heat treatment in the roller kiln is determined, and target temperatures corresponding to the temperature control devices are configured, so that the heating uniformity of the materials to be subjected to heat treatment in the heat treatment process is higher than a preset uniformity threshold value; wherein in the heat treatment process, the filling amount of the to-be-heat-treated material in each sagger is determined based on the target material distribution, and the sagger filled with the to-be-heat-treated material is subjected to heat treatment in the roller kiln with the temperature configuration completed. By adopting the method, the particle size distribution range of products processed by the roller kiln can be narrowed.

The invention provides an automatic temperature control method and system for an environment-friendly brick roasting kiln, and the method comprises the steps: constructing a thermotechnical process knowledge graph skeleton, associating a thermodynamic law with an actual process variable, dynamically correcting a causal structure through multi-batch production data, and forming a multi-version causal path set through combining anti-fact deduction, context causal branches and graph labels; based on a causal atlas and a reinforcement learning mechanism, an intelligent temperature control strategy network is designed, action-causal chain-effect collaborative interpretation is realized, control suggestions with physical feasibility and process context self-adaption are generated, and continuous optimization is performed through closed-loop feedback. And the dynamic collaborative optimization capability of temperature control intellectualization and product quality gain is enhanced.

The invention relates to the technical field of flue gas treatment and waste heat utilization in the non-ferrous metal smelting process, and discloses a multi-kiln flue gas multi-target collaborative intelligent dynamic allocation method and system.The method comprises the steps that original data are collected in real time, and a multi-source flue gas time sequence data set is generated through processing; establishing a multi-furnace flue gas mixing mechanism model, and fusing the data driving model to carry out deviation correction to form a prediction model; and a comprehensive multi-objective optimization function is constructed, safety constraint conditions are defined, the opening degree of each baffle, the rotating speed of an induced draft fan and the optimal set value of a flow dividing valve are calculated in real time through a prediction model prediction control algorithm, and dynamic allocation of stable acid making inlet flue gas parameters and efficient waste heat recovery is achieved. The system comprises a data preprocessing module, a prediction model construction module and a constraint condition construction module. Efficient, stable and low-carbon emission of the smelting flue gas is achieved, and the energy utilization efficiency and production benefits of the whole metallurgical process are improved.

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

The utility model discloses a kiln cover which comprises a cover body, a box body and a connecting pipe assembly, an opening is formed in the bottom of the cover body, the cover body is communicated with the box body, an air inlet pipe is arranged at the bottom of the box body, and combustible materials are filled in the box body and used for consuming oxygen in air entering the cover body. And the oxygen-depleted air enters the cover body to achieve the oxygen isolation effect. The box body is connected outside the cover body, and the air inlet pipe is arranged at the bottom of the box body, so that air enters the box body through the air inlet pipe at the bottom of the box body, is deoxidized by smoldering combustible materials and then enters the cover body, the deoxidizing effect is achieved, antique materials in the cover body can be rapidly cooled, the whole structure is simple, use is convenient, and practicability is high.

The utility model discloses a roller kiln transmission cooling system and a roller kiln device.The roller kiln transmission cooling system comprises a kiln body, a transmission platform composed of a plurality of ceramic roller bars, perforated bricks and a heat insulation sealing plate, the kiln body comprises kiln walls on the left side and the right side, and the transmission platform is erected on the kiln walls on the left side and the right side; the perforated brick is arranged in the middle of the kiln wall and used for erecting the ceramic roller, the heat insulation sealing plate is arranged on the outer side of the perforated brick, the ceramic roller penetrates through the heat insulation sealing plate and is rotatably arranged on the heat insulation sealing plate, and the heat insulation sealing plate is used for forming a heat insulation layer on the periphery of the perforated brick. The heat insulation sealing plate is arranged on the outer side of the perforated brick, so that a heat insulation layer is formed on the periphery of the perforated brick, the temperature of the outer side of the kiln at the perforated brick is prevented from being high, the distance from the driven end support and the driving end support to the kiln wall can be reduced, the supporting span of the ceramic roller is reduced, and high-temperature load-bearing deformation of the ceramic roller can be improved; and the firing quality of building ceramic products is improved.