734 results about "Coke oven" patented technology

The invention relates to the technical field of intelligent control, in particular to a coke oven gas collecting tube pressure dynamic adjusting method and system based on intelligent control, and the method comprises the steps: obtaining pressure data from a gas collecting tube through a sensor, and storing the pressure data in a time sequence format to obtain a pressure deviation initial sequence; according to the pressure deviation initial sequence, calculating a data difference value and carrying out smoothing processing to obtain a change rate sequence; analyzing the change trend of the change rate sequence, and calculating a secondary difference value to obtain a change acceleration sequence; according to the change rate sequence and the change acceleration sequence, predicting a pressure deviation development trajectory by adopting a filtering method to obtain a predicted deviation trajectory; and if the predicted deviation trajectory exceeds a preset threshold range, obtaining a deviation influence evaluation value through historical data comparative analysis. The problem that the pressure control precision of the coke oven gas collecting pipe is poor in the high-temperature and high-pressure environment is solved, and the pressure adjusting precision of the gas collecting pipe in the high-temperature and high-pressure environment is improved.

The invention provides a coke oven automatic heating control method and system, and belongs to the technical field of coke oven control, the method is applied to a coke oven temperature control system, and the method comprises the following steps: based on each temperature detection device, obtaining the temperature of a carbonization chamber corresponding to the temperature detection device, and obtaining the actual temperature of each carbonization chamber; determining a standard temperature range of each carbonization chamber based on the heating duration of the coke cake in each carbonization chamber; determining whether each carbonization chamber needs to execute temperature control or not based on the actual temperature of each carbonization chamber and the standard temperature range of each carbonization chamber; in response to existence of a target carbonization chamber in the carbonization chambers, determining a target combustion chamber based on the temperature deviation degree of the target carbonization chamber; the target carbonization chamber is the carbonization chamber needing temperature control in the carbonization chambers; and controlling a gas flow valve and an air flow valve in the target combustion chamber based on the temperature deviation degree of the target carbonization chamber. According to the invention, accurate adaptation and dynamic optimization of heating control of the coke oven to complex working conditions can be realized.

The invention relates to the technical field of computer fluid dynamics, in particular to a coke oven carbonization chamber numerical simulation model based on a CPFD method, which comprises the following steps: carrying out structural grid division to generate a computational domain grid for solving a carbonization process; setting physical property parameters, boundary conditions, initial conditions and chemical reaction kinetic parameters of the coal particles and the gas phase; a CPFD multiphase coupling model is constructed; solving the CPFD multiphase coupling model to obtain dynamic evolution data of pyrolysis gas flow, coupling heat transfer and chemical reaction processes in the carbonization chamber; and outputting simulation results of a temperature field, a pressure field, a gas component concentration field and coal pyrolysis product distribution in the carbonization chamber. The method has the advantages that the particle swarm is regarded as a quasi-continuous medium for statistical description, and the optimal balance is ingeniously obtained between the calculation efficiency and the calculation precision, so that full-size and high-fidelity numerical simulation of dense gas-solid two-phase flow and reaction process involving millions of particles in an industrial-scale coke oven carbonization chamber becomes possible.

The utility model relates to the technical field of coke oven heating, in particular to a mixed gas heating single-hole combustion chamber temperature adjusting system which comprises adjusting units, one end of each adjusting unit is connected with a mixed heating gas main pipe, and the other end of each adjusting unit is connected with a corresponding waste gas shutter. And the mixed coal gas sequentially passes through the mixed heating coal gas main pipe, the corresponding adjusting unit, the corresponding waste gas opening and closing device and the corresponding heat storage chamber to enter the corresponding combustion chamber. The utility model has the advantages that: the original gas heating pipeline is improved, and the regulating valve is connected with the gas heating pipeline in parallel on the basis of not changing equipment (the equipment comprises the regulating cock, the pore plate box and the exchange cock) on the gas heating pipeline, so that the independence of manual regulation is ensured, and the gas heating pipeline is convenient to use. The furnace temperature adjusting effect of each combustion chamber during mixed gas heating is improved; and various pore plates with different diameters are arranged in the pore plate box, so that the requirement of manual adjustment can be met.

The utility model relates to a coke breeze treatment device for wet quenching of a coke oven, which comprises a clean water tank and a sedimentation tank, the clean water tank and the sedimentation tank are sequentially connected, two sides of the clean water tank and the sedimentation tank are provided with ditches, and the ditches are used for leading quenching water sprayed in a quenching tower back to the coke breeze sedimentation tank to form a closed loop, so as to complete the recycling of the quenching water. Concrete partition walls are arranged between the clean water tank and the sedimentation tank, between the ditches and the clean water tank and between the ditches and the sedimentation tank, openings are formed in the concrete partition walls, and water gates are arranged at the openings and connected with the control unit. The coke powder grabbing device has the advantages that the grabbing device walks on the track and grabs the coke powder of the settling pond and the clean water pond, the coke powder does not need to be cleaned manually, the operation environment of operators is improved, the labor intensity of the operators is reduced, the post of the coke powder grab bucket operator is canceled, manpower is saved, the enterprise cost is reduced, and the working efficiency is improved. Operators are prevented from being in contact with toxic and harmful substances, and the operation environment of the operators is improved.

The invention discloses a coke oven operation anomaly detection and early warning system based on video monitoring, relates to the technical field of coke oven safety production monitoring, and solves the technical problems of potential safety hazards such as untight oven door sealing and illegal personnel operation in the traditional coke oven production process in the prior art. A working area is obtained, the obstacle distance in the working area is obtained through radar scanning, and an infrared thermal imaging module monitors temperature distribution of the furnace body; after the edge calculation layer recognizes front-end sensor data, the furnace door hook state is analyzed through an improved target detection model, illegal actions of personnel are recognized through a posture estimation model, and a preprocessing result is transmitted to the data analysis layer; and the data analysis layer fuses and integrates vision, radar and positioning data, generates three-dimensional pose information of the furnace door through a multi-source fusion algorithm, performs abnormality diagnosis by combining a safety threshold value in a process rule base, and triggers an early warning signal of a corresponding level.

The invention relates to the technical field of monitoring control, in particular to a coke oven excess air coefficient control method and system based on real-time monitoring, and the method comprises the steps: collecting coke oven equipment data and thermal stress distribution through a sensor, obtaining time-varying sequence data of an excess air coefficient, carrying out frequency domain analysis, and determining a periodic model of the excess air coefficient; based on the periodic model and the real-time data, a future air excess coefficient sequence is predicted, when a prediction result is not in a reference range, the furnace body is divided into a plurality of areas according to real-time thermal stress distribution in the furnace body, the distance between each area and an air inlet and the corresponding air supply component are calculated, and the air supply rate is regulated and controlled according to the parameters. And after adjustment, thermal stress distribution and air excess coefficient sequence data are obtained again, whether air supply meets the requirement or not is judged, and if not, a corresponding adjustment strategy is obtained. The method can dynamically optimize the air supply of the coke oven, improve the combustion stability and ensure the coke production quality.

The invention relates to the technical field of coking industry, in particular to a coke oven gas collecting pipe pressure control method based on multivariable constraint optimization, which comprises the following steps: collecting, screening and preprocessing historical operation data of a coke oven gas collecting pipe system under different operation conditions; designing a multivariable nonlinear constraint optimization control algorithm; introducing a constraint reflecting the actual operation of a coke oven system into a nonlinear constraint optimization problem, and adding penalty terms for a control input constraint and a gas collector pressure constraint into an optimization objective function; and at the beginning of each control period, acquiring key parameters of the coke oven system in real time, and performing prediction calculation on the key parameters of the coke oven system through the NARX neural network model. The method has the advantages that the generated data set can be ensured to comprehensively cover the states of the coke oven gas collecting pipe system in various actual operation scenes, so that the subsequently trained NARX neural network model can fully learn dynamic behavior modes of the system under different working conditions.

The utility model relates to the technical field of coke oven heating, in particular to a coke oven gas heating combustion chamber temperature control device, which is characterized in that a gas header pipe adjusting unit is arranged at the front end of a single-hole combustion chamber adjusting unit and is connected with a coke oven gas main pipe, and each single-hole combustion chamber adjusting unit is connected with the coke oven gas main pipe; the output end of each single-hole combustion chamber adjusting unit is connected with the corresponding combustion chamber. And the gas main pipe adjusting unit comprises an adjusting valve C, a flow meter and a pressure transmitter, and the adjusting valve C, the flow meter and the pressure transmitter are sequentially arranged on the coke oven gas main pipe. The utility model has the advantages that: the regulating valve and the bypass regulating valve can completely replace the function of a pore plate box, so that the risk that a worker works in a dangerous area such as a gas basement is reduced; the loop A of the first adjusting branch pipe and the loop B of the second adjusting branch pipe are standby for each other, when one loop breaks down, the loop can be switched to the standby loop at any time, and the flow stability of heating gas is improved.

The invention relates to the technical field of coke oven operation control, in particular to an expansion pressure detection method applied to an electric heating coke oven, which comprises the following steps: dividing coking stages based on coal state change in a historical coking period of the electric heating coke oven, and setting a reference acquisition frequency for each coking stage; for each coking stage, real-time data acquisition is carried out based on the reference acquisition frequency, and expansion pressure detection data is obtained; performing pressure anomaly calculation on the expansion pressure detection data to obtain an expansion pressure change rate and an expansion pressure distribution characteristic; correcting the reference acquisition frequency according to the reference acquisition frequency to obtain a dynamic acquisition frequency corresponding to the coking stage; and generating expansion pressure detection alarm information in response to the condition that at least one of the expansion pressure detection data, the change rate, the distribution characteristic and the dynamic acquisition frequency exceeds a corresponding preset warning threshold value. Acquisition frequency can be dynamically adjusted along with coal expansion characteristics, timeliness of pressure peak capture is guaranteed, and redundant data in a stable stage is reduced.

The present invention discloses a combined control method for automatically balancing the pressure of multiple coke oven gases, comprising the following steps: connecting to the pressure measurement points of each gas source and the usage measurement points of each gas user in the original DCS system of the power plant, and remotely controlling the gas release regulating valves of each gas source; measuring the pressure values, target deviation values, and gas usage values ​​of each gas user at each gas source pressure measurement point; comparing the gas pressure target values ​​set by each gas user with the measured gas pressure values, target deviation values, gas usage values, and average gas flow values ​​of each gas user; and outputting different control instructions for the gas release regulating valves of each gas source through a combined calculation method. The combined control method for automatically balancing the pressure of multiple coke oven gases of the present invention has the advantages of automatically adjusting the gas pressure, timely and accurately adjusting the gas pressure of each coking plant, uniformly regulating the pressure, and preventing the backflow of low-pressure incoming gas.

The invention provides a high-precision maintenance method for a coal supporting plate of a tamping coke oven coal charging car, and relates to the technical field of coke oven equipment maintenance, and the high-precision maintenance method comprises the following steps: S1, pretreatment of new and old plates: removing an oxide layer and pollutants on a contact surface of an upper-layer old plate and a lower-layer new plate; s2, drilling and positioning: temporarily fixing the new plate and the old plate through interval spot welding and then synchronously drilling; step S3; the coal supporting plate is cut into a wear section and a reserved section, and a new plate is welded after the wear section is removed; s4, thermal anchoring is conducted, specifically, the rivet is heated, the pose of the coal supporting plate is adjusted, and then riveting is completed; and S5, quality closed-loop detection: carrying out nondestructive detection and vibration stability verification on welding and riveting parts. According to the process, new and old plates are forcibly aligned through a dynamic drilling technology and spot welding, the datum plane deviation is eliminated, and meanwhile, modular segmented replacement is utilized, an undamaged structure is reserved through selective cutting, further thermodynamic synergistic anchoring is conducted, and rivet heating and mechanical leveling cooperate to improve the connection strength.

The utility model relates to a weight lifting device of a coke oven heating exchange system, which comprises a chain and a locking device, one end of the chain is connected with a transmission device of the coke oven heating exchange system, and the other end of the chain is connected with a waste gas weight and an air door through the locking device; the locking device is composed of a locking ring and a locking ring. The opening of the locking ring is locked and connected through matching of threads and a locking nut; the locking ring is arranged in the locking ring, and an opening of the locking ring can be sealed through the movable ring body. A traditional shackle type connection mode is improved into a double-insurance structure composed of the locking ring and the locking ring, the weight falling prevention function can be effectively achieved, the chain clamping condition during weight lifting can be effectively prevented, the accident rate of weight falling and clamping of the exchange transmission device in the heating process of the coke oven is greatly reduced, and the service life of the exchange transmission device is prolonged. The production safety is improved, and the smooth production of the coke oven is ensured.

The utility model relates to the technical field of coke oven heating, in particular to a mixed gas heating single-hole combustion chamber temperature adjusting device, which is characterized in that the input end of each heating gas unit and the input end of each adjusting unit are respectively connected with a mixed heating gas main pipe, and the output end of each heating gas unit is connected with a corresponding waste gas shutter; the first output end and the second output end of each adjusting unit are connected with the output ends of the adjacent coal gas heating units respectively, and the adjusting units are arranged on the corresponding adjusting coal gas pipelines. The utility model has the advantages that the plug valve A and the plug valve B can be automatically switched in adjacent switching periods by utilizing the switching transmission brace of the existing switch without additionally arranging a transmission device, so that the cost is saved; the plug valves A and B and the exchange plug cocks A and B are located at the same horizontal height, the crank lengths of the cranks A and B and the exchange plug cocks A and B are the same, it is guaranteed that the plug valves A and B and the exchange plug cocks A and B achieve full opening and full closing at the same time, the structure is simple, and implementation is easy.

This invention relates to the field of coal blending and coking technology, specifically to a method, equipment, and storage medium for establishing a dry-quenched coke quality prediction model. The method includes: acquiring a first coal blending scheme, and first reactivity data, second reactivity data, first post-reaction intensity data, and second post-reaction intensity data of the coal corresponding to the first coal blending scheme after coking; establishing a first coke quality prediction model based on first linear relationship values, second linear relationship values, the proportion of a single type of coal in the blend, and third reactivity data corresponding to a single type of coal; and determining a dry-quenched coke quality prediction model based on the first coke quality prediction model, third linear relationship values, and fourth linear relationship values. The dry-quenched coke quality prediction model established by this application has high accuracy, good generalization ability, and can quickly acquire dry-quenched coke quality data under different coal blending schemes and different coke oven production load conditions.

The utility model relates to a carbon dioxide comprehensive utilization system taking dry quenching as a core. The carbon dioxide comprehensive utilization system comprises a dry quenching circulation system, a carbon dioxide preparation system, a carbon monoxide separation device and a hydrogen separation device, the dry quenching circulating system comprises a dry quenching furnace, a primary dust remover, a boiler, a secondary dust remover and a circulating fan which are sequentially connected through a circulating gas pipeline; the carbon monoxide separation device and the hydrogen separation device are connected with a circulating gas pipeline at the downstream of the circulating fan; the carbon dioxide preparation system comprises a coke oven flue, a carbon dioxide separation device and a chimney. According to the system disclosed by the utility model, carbon dioxide separated from industrial waste gas is used as dry quenching circulating gas, a new way for consuming carbon dioxide is developed, the emission of carbon dioxide is reduced, the safety of dry quenching production is ensured, and carbon monoxide and hydrogen are obtained.

The utility model relates to an anti-blow-by coke oven regenerative chamber structure, which is divided into a plurality of different temperature intervals from the lower part of a combustion chamber to the bottom of the regenerative chamber, and sequentially comprises a high-temperature area, a medium-temperature area, a low-temperature area and a low-temperature area from top to bottom, the gas pipeline airflow channels corresponding to all the temperature intervals are staggered, and a high-temperature-resistant metal hose is arranged in the gas pipe brick airflow channel corresponding to the same vertical flame path from top to bottom in a full-length mode; and sliding layers are arranged among the brickworks in different temperature intervals. According to the utility model, gas supply blowby caused by mortar joint tearing or gas pipe brick breakage due to displacement between the upper and lower layer gas pipe bricks in the main wall of the regenerative chamber of the coke oven caused by different expansion during the oven drying period or the residual expansion period of the coke oven can be prevented, and smooth and safe production of the large coke oven is ensured.

The invention relates to the technical field of coke oven maintenance, and provides a method for evaluating the deformation amount of a coke oven column after load increase based on a finite element method, and the method comprises the following steps: simulating the conditions of furnace column deformation, load and stress change through software; therefore, the influence of multi-physics-field coupled load distribution characteristics on the mechanical property and deformation behavior of the furnace column is obtained, for example, when the coke oven runs, after an ascending pipe waste heat utilization system is added on the furnace column, the deformation increment of the furnace column bearing the ascending pipe waste heat utilization system under the original load is obtained, and the deformation of the furnace column is determined according to the deformation increment of the furnace column at the moment. The spring load of the oven column is adjusted by adjusting the spring load of the oven column, so that the deformation of the coke oven is reduced, and the protective pressure of the oven column is always kept at a proper level through effective monitoring and adjustment, so that the oven column is kept stable during production and operation of the coke oven, and the structural stability of the oven body of the coke oven is kept.

The utility model relates to the technical field of coke oven heating, in particular to a coke oven gas heating single-hole combustion chamber temperature adjusting system which comprises adjusting units, one end of each adjusting unit is connected with a heating gas main pipe, and the other end of each adjusting unit is connected with a corresponding combustion chamber. The utility model has the advantages that the regulating unit is connected with the combustion chamber gas heating pipeline in parallel, so that the regulating valves are additionally arranged on the two sides of the pore plate box while the original function of the pore plate box is reserved, and the temperature regulating effect is improved; the function of an original pore plate box is reserved, when the opening of the adjusting valve is too large or too small and cannot be adjusted, an operator can change the opening of the adjusting valve by changing the pore plate in the pore plate box, and operation is easy and easy to achieve; the number of the regulating valves of the regulating unit of each coke oven is large, and the regulating valves are arranged on the small-size pipeline connected with the gas main pipe in parallel, so that the caliber of each regulating valve is greatly reduced; the size of the regulating valve is reduced, so that the gas consumption of each regulating valve is reduced, and the energy consumption is greatly reduced.

The utility model relates to the technical field of heat recovery of coke ovens, in particular to heat recovery equipment for coke ovens, which comprises a coke oven, a connecting pipe A used for transmitting hot air is fixedly connected to the upper end of the coke oven, a fan used for exhausting air is fixedly connected to one side of the connecting pipe A, and a precipitation cabin is fixedly connected to one end, far away from the coke oven, of the connecting pipe A; a water pipe is arranged in the precipitation cabin, a connecting pipe B is arranged at one end of the precipitation cabin, and a filtering cabin is fixedly connected to the end, away from the precipitation cabin, of the connecting pipe B. According to the device, the water pipe is heated when hot air is pumped out, filtering is conducted through alignment of a first filtering plate, and meanwhile fan blades are driven to rotate when the hot air is exhausted; therefore, a worker can better judge the use condition of the first filter plate, meanwhile, when the first filter plate is blocked, hot air enters the other part of the filter bin through the branch pipe and is filtered through the second filter plate, and the heat recovery equipment for the coke oven is achieved.

The utility model discloses a coke oven flue gas desulfurization device, which relates to the technical field of coke oven flue gas desulfurization and comprises a desulfurization kettle, the desulfurization kettle is fixedly connected with an exhaust pipe and a liquid conveying pipe, and the bottom of the desulfurization kettle is fixedly connected with a blow-off pipe. The device further comprises a pre-cleaning mechanism used for removing dust particles in flue gas and a flue gas washing assembly used for increasing the contact area of the flue gas and alkali liquor. When the device is used, flue gas needing to be conveyed to the gas conveying pipe, the stirring device fully stirs and mixes the flue gas and water, solid particles in the flue gas are removed through the water, the solid particles can be gathered in the middle of the bottom of the stirring barrel under the action of rotating water flow, precipitates are formed after the solid particles are accumulated to a certain degree, and the solid particles are separated from the stirring barrel. And by inputting high-pressure water flow into the flushing water pipe, precipitated particles can be flushed away, so that the pollution discharge effect is realized, solid particles in the flue gas are cleaned, and the influence of the solid particles in the flue gas on subsequent operation is reduced.

The invention relates to the technical field of data analysis, in particular to a construction method of a composite heat insulation sealing structure for a coke oven body, which comprises the following steps: determining a monitoring target, dividing the monitoring target into a plurality of monitoring areas, arranging a sensor, and analyzing and determining a gas escape characterization value, a vibration rule characterization value and a sound wave array characterization value. Calculating an abnormal sealing characteristic value for determining the leakage risk of the monitoring area, judging whether stress and pressure monitoring is carried out or not, and collecting stress data of the coke oven body with the high leakage risk so as to construct a stress time hysteretic curve and obtain a stress hysteretic effect characterization value; and setting a dynamic pressure sensor at the coke oven body and the related position to determine a pressure related characterization value, calculating a structure reaction characteristic value by combining the abnormal sealing characteristic value so as to determine whether to send out an early warning signal, and adjusting the strength of the early warning signal based on the structure reaction characteristic value. And the sealing detection efficiency and accuracy are improved.

The utility model provides a coke oven blowing-out system and relates to the technical field of coke ovens. The device comprises a plurality of carbonization chambers, a gas collecting pipe is communicated with the carbonization chambers, a purging pipe and a diffusing pipe are communicated on the gas collecting pipe, a gas source pipe is communicated with the purging pipe, the diffusing pipe is communicated with an exhaust pipe, and the exhaust pipe is sequentially provided with a heat exchange unit, a filter unit, a combustion unit, a purification unit and a discharge unit. When the coke oven is shut down, gas blown out of the coke oven is discharged after being treated, so that environmental pollution is avoided.

The present application provides an anti-blocking coke making system and method, the system comprising: a coke making furnace, a vibrating screen machine, a cooling machine and a conveying mechanism. The method comprises: raw coal particles enter the coke making furnace, and pass through a pre-carbonization section, a carbonization section and an activation section in turn, wherein aluminum oxide balls are introduced into the carbonization section to mix and heat with carbonization material, and the carbonization material is activated in the activation section to obtain active coke, which is discharged from a discharge port together with the aluminum oxide balls; the active coke and the aluminum oxide balls are separated in the vibrating screen machine, wherein the active coke is cooled in the cooling machine, and the aluminum oxide balls are sent back to the carbonization section of the coke making furnace by the conveying mechanism for recycling. The present application uses aluminum oxide balls as catalysts to decompose heavy tar with high viscosity into light tar with low viscosity, preventing the blocking problem caused by the mixture and agglomeration of tar and dust, and the catalysts can be recycled.

The invention relates to the technical field of solid waste treatment, and discloses a coking solid waste treatment device, which comprises: a material mixing assembly, which comprises a double-screw conveyor and a coal bunker arranged at the top of the double-screw conveyor, and a discharge port of the double-screw conveyor is connected to a bucket elevator; the moving assembly comprises a sliding way, a sliding block arranged in the sliding way, a moving base arranged on the sliding block, a first motor arranged on the sliding way, a first transmission piece connected with the first motor and the sliding block and an overturning assembly. According to the coking solid waste treatment device, coking solid waste and coal are mixed and then directly conveyed to the coke oven for coking through the coking belt, stacking in a coal yard is avoided, and therefore the coking solid waste is prevented from polluting soil; the solid waste is prevented from being accumulated at one position to influence the mixing efficiency of the double-screw conveyor, and the coke quality and the solid waste treatment efficiency are improved.

According to the present invention, coal for producing coke or mixed coal for producing coke that includes coal and waste plastic for mixing is charged into a carbonization chamber (2) of a coke oven (1) and dry distilled to produce coke (13). When the dry distillation is complete, a portion or all of a plurality of charging ports (4 (4a–4d)) that are provided in the carbonization chamber of the coke oven are used to charge waste plastic (14 (14b–14d)) into an upper space (5) that is above the coke inside the carbonization chamber in order from the charging port closest to an ascension pipe (3) to the charging port farthest from the ascension pipe. The present invention thereby provides a waste plastic processing method that makes it possible to keep pyrolysis gas from waste plastic from leaking or erupting from charging ports.

The utility model relates to the technical field of dust and smoke dust removal, in particular to a high-efficiency trapping treatment device for dry quenching coke loading smoke dust, which comprises an induced draft fan, a connecting pipe mounted at one end of the induced draft fan, a dust removal box connected with the other end of the induced draft fan, a first dust removal bin and a second dust removal bin arranged in the dust removal box, a coarse filter screen mounted in the first dust removal bin, and a second filter screen mounted in the second dust removal bin, a dust removal filter element is mounted in the second dust removal bin; a pulse tube is mounted at one end of the pulse dust collector; the dust removal device has the beneficial effects that the dust and smoke outlet in the production process of the dry quenching furnace can be connected with the connecting pipe of the induced draft fan, the induced draft fan is started to enable the dust and smoke to enter the dust removal box, and when the dust and smoke pass through the first dust removal bin, coarse dust particles in the dust and smoke can be intercepted by the coarse filter screen and directly fall down; and the fine dust particle airflow enters the dust removal filter element in the second dust removal bin and is captured by the dust removal filter element in the second dust removal bin, and the dust removal filter element can be regularly subjected to dust removal by a pulse pipe through a pulse dust remover to avoid blockage.

The present application relates to coke oven operation control technical field, especially to a kind of applied to electric heating coke oven expansion pressure detection method, comprising: based on the coal material state change in the historical coking cycle of electric heating coke oven division coking stage, and set reference collection frequency for each coking stage;For each coking stage, based on reference collection frequency, real-time data acquisition is carried out, and expansion pressure detection data are obtained;Expansion pressure detection data are calculated for pressure anomaly, and expansion pressure change rate and expansion pressure distribution characteristics are obtained;And according to this, reference collection frequency is revised, and the dynamic collection frequency corresponding to the coking stage is obtained;In response to at least one of expansion pressure detection data, change rate, distribution characteristics and dynamic collection frequency exceeds corresponding preset warning threshold, expansion pressure detection alarm information is generated.It can make collection frequency dynamic adjustment with coal material expansion characteristics, ensure the timeliness of pressure peak capture, reduce redundant data in stable stage.

The embodiment of the invention provides a coke product cooling system and method.The coke product cooling system comprises a coke discharging device, a cold coal loading device, a cooling device and a screening device, and an inlet of the coke discharging device is used for being connected with an outlet of a coke oven so as to obtain a coke product which is subjected to coking and to be cooled and has the first particle size from the coke oven; the cold coal loading device is used for loading cooled coal with a second particle size, and the second particle size is smaller than the first particle size; an inlet of the cooling device is respectively connected with an outlet of the coke discharging device and an outlet of the cold coal loading device, the cooling device is used for receiving and mixing the coke product and the coal material, so that the coke product is cooled by the coal material, and the coal material is heated by the coke product to form a coal product; an inlet of the screening device is connected with an outlet of the cooling device and used for obtaining and screening coke products and coal products of different particle sizes. And in the cooling link of the coke product, the heat of the coke product is efficiently recovered, the environmental pollution is low, the coal product can be obtained, and the benefit is better than that of waste heat recovery power generation.

The invention discloses a coupling system of a coke oven system and a coke dry quenching circulating gas loop and a control method thereof, the coupling system comprises the coke dry quenching circulating gas loop and the coke oven system, a first pipeline is used for introducing part of circulating gas generated by a coke dry quenching furnace into a coke oven or a coke oven flue gas pipeline; a part of redundant circulating gas of the dry quenching furnace is led out to the coke oven system from the first pipeline, the gas leakage and explosion risks of the dry quenching furnace can be reduced, meanwhile, inert components in the circulating gas can dilute combustible components of coke oven gas, the combustion intensity of the coke oven gas is reduced, and generation of NOx in coke oven waste gas is reduced; or part of the circulating gas is treated through a flue gas purification device of the coke oven system, so that the capacity of purification equipment of a dry quenching dust removal system is reduced, and the pipeline arrangement redundancy complexity of a dry quenching area is reduced.