204results about "Coke ovens" patented technology

The invention relates to the technical field of waste plastic treatment, in particular to a waste plastic grading carbonization device and a waste plastic treatment method. The waste plastic grading carbonization device comprises a feeding hopper, a crushing device, a grinding device, a screening device, a catalyst self-adaptive proportioning device, a first spiral discharging machine, a first-stage carbonization chamber, a second-stage carbonization chamber, an activation chamber, a second spiral discharging machine, a solid product collecting device, a liquefaction device, a liquefied product collecting device, a cooling water circulating device and a third spiral discharging machine, a material returning bin and a tail gas treatment device. According to the invention, through the collaborative innovation of'grading carbonization 'and'catalyst self-adaptive proportioning device', the problems of incomplete and non-uniform carbonization of the waste plastics, inadequate utilization of gas products and the like in the pyrolysis process of the waste plastics are solved, and an industrial feasible path is provided for chemical recovery of the waste plastics; the device is reasonable in overall structural design and high in treatment energy efficiency, and continuous, sufficient and efficient pyrolysis and high-value conversion of the waste plastics are achieved.

The invention discloses a biomass coke-based multifunctional coal pyrolysis catalyst and a preparation method thereof, and belongs to the technical field of preparation of coal pyrolysis catalysts. The preparation method comprises the steps of raw material pretreatment, pyrolysis pore-forming, activation synergism, metal loading, citric acid staged removal and atmosphere replacement, and specifically comprises the following steps: firstly, compounding, crushing and drying straw and wood biomass, and performing pyrolysis in an inert atmosphere to prepare a biomass coke precursor; then carrying out alkali metal activation, acid pickling and water washing to prepare an activated carrier with a high specific surface area; then, citric acid is used for assisting in loading a mixed solution of nickel nitrate and ferric nitrate, citric acid is removed by stages through air low-temperature pre-removal and inert gas medium-temperature deep removal, and the valence state of the metal active component is synchronously regulated and controlled. The prepared catalyst is low in citric acid residual quantity, can realize hydrodeoxygenation, tar cracking and anti-carbon deposition functions, is excellent in catalytic performance and low in cost, meets the requirements of low metamorphic coal pyrolysis volatile component upgrading, and is easy to industrially apply.

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.

This invention discloses a coking method for synergistically improving the mechanical strength of coke using multiple components, relating to the field of coke smelting technology. The key technical points are: In a basic coal blend composed of gas coal, coking coal, and lean coal, 0.5%-10% organic binder and 0.5%-10% solid filler are added by mass percentage, along with 0.5-10 mL of liquid organic solvent per 100g of coal. After mixing and molding, the mixture undergoes carbonization. An optimal blend ratio is selected, and under the optimal combination, the mechanical strength of the coke can reach over 88%. This invention proposes a ternary synergistic modification system that significantly improves the mechanical strength and structural uniformity of coke without significantly altering existing processes. It has the advantages of low cost and ease of implementation, and is suitable for the industrial production of coke for blast furnaces.

The application discloses a carbonization box body, which comprises a main box body, an inner box body arranged in the main box body, a left end plate, a right door frame and a door body.

The invention discloses a coking device for lignite blending, and relates to the technical field of coal coking, the coking device comprises a coking furnace, the top of the coking furnace is fixedly provided with a box body, the two sides of the box body are both provided with storage boxes, the bottoms of the storage boxes are fixedly provided with hollow cylinders, and the sides, away from each other, of the two hollow cylinders are both fixedly provided with first servo motors; output shafts of the first servo motors penetrate through one side of the hollow cylinder and are fixedly provided with first augers; the two independent first servo motors are used for driving the augers at the bottom of the storage box respectively, the conveying amount of lignite and other coal types can be accurately controlled by adjusting the rotating speed of the motors, the deviation of the coal blending proportion is greatly reduced, it is ensured that the mixed coal meets the preset formula requirement all the time, and the coal blending efficiency is improved. Coke quality fluctuation caused by proportion imbalance is reduced from the source, stable performance of subsequent coking products is guaranteed, and the coal crushing and mixing effect is improved.

The claimed invention is directed to a catalytic graphitization process to convert fuel-grade petroleum coke into battery-grade graphite using a recyclable catalyst derived from iron, nickel or cobalt.

The claimed invention is directed to a catalytic graphitization process to convert fuel-grade petroleum coke into battery-grade graphite using a recyclable catalyst derived from iron, nickel or cobalt.

The present invention provides a method for producing coke that exhibits minimal variation in strength between production lots. [Solution] The manufacturing method comprises a preparation step (S10), a loading step (S20), a cutting step (S30), a monitoring step (S40), and a coke manufacturing step (S50). In the preparation step (S10), raw coal is prepared. In the loading step (S20), raw coal is loaded into a coal bin (11). In the cutting step (S30), raw coal in the coal bin (11) is cut from the bottom end of the coal bin (11) to the charging car (30). In the monitoring step (S40), the amount of raw coal remaining in the coal bin (11) is monitored. In the coke manufacturing step (S50), the raw coal on the charging car (30) is charged into a carbonization chamber (41), and the raw coal in the carbonization chamber (41) is carbonized to produce coke. Then, in the input process (S20), raw coal is fed into the coal bin (11) so that the inventory level monitored in the monitoring process (S40) is maintained at or above a predetermined level.

This invention discloses a blended coal and coke, and a preparation method, using Canadian coking coal with a plasticity range <60℃, belonging to the field of coal blending and coking technology. It comprises 20%–24% gas coal, 4%–8% gas-rich coal, 3%–7% 1 / 3 coking coal, 9%–16% fat coal, and 25%–62% coking coal. The coking coal includes 5%–15% Canadian coking coal. The Canadian coking coal has a Kiel's flowability plasticity range of 50℃–55℃, a flowability MF of 11–37 PPM, a caking index G of 76–80, and a maximum plastic layer thickness Y of 14–18 mm. This invention replaces a portion of the coking coal with Russian fat coal in coal blending and coking, increasing its blending ratio and expanding the application range of coking coal, thus optimizing the utilization of imported coking coal resources.

This invention provides a method for evaluating the compatibility of different coals, enabling simple and highly accurate prediction of coke strength. [Solution] A method for evaluating the compatibility between two or more types of coal when two or more types of coal are blended, comprising: obtaining the solubility parameter of each of the two or more types of coal; calculating the centroid of the solubility parameter; and evaluating the compatibility based on the difference between the centroid and the solubility parameter.

A system and method for sequestration and reduction of carbon dioxide (CO2) to a carbon material via an integrated microbial and chemical catalytic processes are described. The system and method comprise a bioreactor in gas communication with a pyrolysis reactor, wherein the microbes of the bioreactor uptake CO2 dissolved in aqueous solution and convert it to a volatile organic carbon compound, such as, for example, methane, which, in turn is fed into the pyrolysis reactor for catalytic conversion to a carbon material, wherein the carbon material may include crystalline carbon. The thus obtained carbon material is easily collectable for various high end uses or for CO2 storage.

A method for readily estimating the coke strength of coal-blend coke after CO2 reaction is provided. A coal-blend coke CSR estimating method for estimating the coke strength of coal-blend coke after CO2 reaction (CSR) using a TG reactivity index that is a percentage weight loss measured by thermogravimetry of coke held in a CO2 atmosphere at a predetermined temperature range for a predetermined time, the method including a step of measuring the TG reactivity indices of single-coal cokes and estimating the TG reactivity index of the corresponding coal-blend coke from the weighted average of the TG reactivity indices measured of the single-coal cokes; a step of estimating the coke reactivity index (CRI) of the coal-blend coke from the TG reactivity index of the coal-blend coke estimated in the previous step; and a step of estimating the coke strength of the coal-blend coke after CO2 reaction (CSR) from the coke reactivity index (CRI) of the coal-blend coke estimated in the previous step and the drum index (DI) of the coal-blend coke.

This application belongs to the technical field of air intake systems and discloses an air intake system for an integrated carbonization machine, including an air intake pipe, a first mounting shaft, a first semi-circular plate, a second mounting shaft, and a second semi-circular plate. A connecting rod is hinged to one side of the second semi-circular plate, and the end of the connecting rod away from the second semi-circular plate is hinged to the first semi-circular plate. A sliding seat is slidably installed inside the air intake pipe, and control rods are hinged to both sides of the sliding seat. One end of the control rod is hinged to the first semi-circular plate. A drive assembly and an air intake assembly are installed inside the air intake pipe. The drive assembly drives the sliding seat to slide, which in turn moves the control rods, causing the two first semi-circular plates and the two second semi-circular plates to rotate. The two first semi-circular plates become flush and seal the inside of the air intake pipe, and the two second semi-circular plates similarly seal the inside of the air intake pipe. The two sealing structures ensure the sealing effect inside the air intake pipe, preventing outside air from entering the carbonization machine through the air intake pipe, thereby ensuring the carbonization effect of the material inside the carbonization machine.

A method for readily estimating the coke strength of coal-blend coke after CO2 reaction is provided. A coal-blend coke CSR estimating method for estimating the coke strength of coal-blend coke after CO2 reaction (CSR) using a TG reactivity index that is a percentage weight loss measured by thermogravimetry of coke held in a CO2 atmosphere at a predetermined temperature range for a predetermined time, the method including a step of measuring the TG reactivity indices of single-coal cokes and estimating the TG reactivity index of the corresponding coal-blend coke from the weighted average of the TG reactivity indices measured of the single-coal cokes; a step of estimating the coke reactivity index (CRI) of the coal-blend coke from the TG reactivity index of the coal-blend coke estimated in the previous step; and a step of estimating the coke strength of the coal-blend coke after CO2 reaction (CSR) from the coke reactivity index (CRI) of the coal-blend coke estimated in the previous step and the drum index (DI) of the coal-blend coke.

Coke products configured to be combusted in a cupola furnace are disclosed herein. The coke products can include foundry coke products having a hydraulic diameter of at least 3.5″, egg coke products having a hydraulic diameter of 1.5-3.5″, and breeze coke products having a hydraulic diameter of 0.5-1.5″. Individual foundry coke products can comprise an oblong shape including a length of at least 4″, a width of at least 1.5″, and a length:width ratio of at least 2.0. In some embodiments, the length of individual coke products can be between 6-12″ and the width can be at least 2.5″. Additionally, the foundry coke products can have a Coke Reactivity Index (CRI) of at least 40%. The coke products can be made from a blend of coal and breeze coke products in horizontal ovens, such as horizontal heat recovery or horizontal non-recovery ovens.

The utility model discloses a coke discharging and dust removing device for a coke oven, which relates to the technical field of coke oven dust removing equipment and comprises a dust removing cover, the bottom of the dust removing cover is arranged above a coke receiving device, and the top of the dust removing cover is communicated with one end of a branch pipe; and the other end of the branch pipe is communicated with the dust removal main pipe. According to the coke-discharging and dust-removing device for the coke oven, the dust-collecting main pipe is directly arranged at the top of the coke oven column, so that the length of the branch pipe is obviously shortened and the occupied area is reduced. Due to the fact that the pipeline is short, resistance is reduced, and the system fan can achieve the energy-saving effect.

To provide a fluidity improving agent for ironmaking raw materials having excellent fluidity, a method for improving fluidity of ironmaking raw materials using the fluidity improving agent, and an ironmaking method using the fluidity improving agent.SOLUTION: A fluidity improving agent for ironmaking raw materials comprises an ester compound. The ester compound has a flash point of 250°C or higher. The kinematic viscosity of the ester compound at 40°C is 1.0×10-4 m2 / s or less. The solubility of the ester compound in water at 25°C is less than 1 g / 100 g.SELECTED DRAWING: None

The invention discloses a method for evaluating the volume change rate of foundry coke, and belongs to the technical field of foundry coke production. The method comprises the following steps: substituting volatile components and caking indexes of coal as fired into a formula Vc = 0.4435 * Vdaf + 0.1995 * G-20.1214 to obtain a predicted value of the volume change rate of foundry coke; according to the method, the complex relation between the as-fired coal index and the foundry coke volume change rate can be accurately captured, the average absolute error can be controlled within 3% through actual verification, and compared with the prior art, the accuracy is improved by 40%-60%; the problem that the volume change rate of foundry coke cannot be accurately predicted is solved.

The invention discloses a preparation method of slag-reducing and reducing coke for a blast furnace, the coke and a use method of the coke. The preparation method comprises the following steps: blending the following coal in percentage by mass: 15-30% of gas coal, 13-30% of 1 / 3 coking coal, 8-12% of fat coal, 15-30% of coking coal and 6-15% of meager lean coal. The coking coal with low content of SiO2 and Al2O3 and high content of CaO, MgO and Fe2O3 is optimized, and the coal blending structure is optimized, so that the coke obtained by coking has low content of SiO2 and Al2O3 and high content of CaO, MgO and Fe2O3. A certain proportion of coke is used in blast furnace production, the content of SiO2 and Al2O3 in furnace charge is reduced, and then the yield of furnace slag is reduced; the method improves the content of CaO, MgO and Fe2O3 in the furnace burden, can reduce the addition amount of the slag solvent, can reduce the melting point of the slag, and can enhance the fluidity of the slag, thereby promoting better separation of the slag and the molten iron, reducing the slag inclusion amount of the molten iron, and improving the quality of the molten iron. Meanwhile, the coke has high reducing performance, and the temperature of a blast furnace heat reserve area is reduced. In addition, the air permeability of the blast furnace is effectively improved.

The application discloses a pyrolysis furnace carbon black and pyrolysis tail gas cooling treatment device, the pyrolysis furnace includes the cracking chamber, condensing tower and discharge pipe, organic solid waste is cracked in the cracking chamber and generates carbon black and pyrolysis gas, pyrolysis gas is condensed in the condensing tower and generates pyrolysis oil, carbon black is discharged to the outside in the discharge pipe, the cooling treatment device includes the collection box, screw conveyor and cooling device, the collection box is installed to the outlet of the discharge pipe, the first filter plate is arranged in the collection box, and the first filter plate divides the collection box into the transfer area and the oil collection area. The screw conveyor is inclined and connected to the transfer area of the collection box, the screw conveyor includes the heat-conducting conveying pipe and the spiral conveying blade, and the heat-conducting conveying pipe is provided with a vertical downward discharge port. The cooling device is wrapped to the outer wall of the heat-conducting conveying pipe to cool the carbon black and pyrolysis gas in the screw conveyor, realize the recycling treatment of the pyrolysis gas, and facilitate the collection of the carbon black.

This invention discloses a coking blend containing US gas-rich coal, belonging to the field of metallurgical coke preparation technology. The blend consists of the following individual coking coals in the following mass percentages: US gas-rich coal 2%–8%, coking coal 40%–45%, coking coal 16%–21%, 1 / 3 coking coal 20%–25%, and lean coal 7%–14%. The blend has a caking index (G) of 77–83, a maximum plastic layer thickness (Y) of 14 mm–19 mm, and a volatile matter (Vdaf) of 27%–30%. The US gas-rich coal has a volatile matter (Vdaf) of 40%–43%, a caking index (G) greater than 95, a plastic layer thickness (Y) greater than 20, and a maximum vitrinite reflectance of 0.75–0.85. This invention utilizes a specific proportion of US gas-rich coal to replace part of the high-priced prime coking coal and coking coal. Without the need for tamping or briquetting processes, the coke cake is produced through high-temperature dry distillation in a 7.1-meter top-loading coke oven, with the center temperature controlled at 1000±50℃. The resulting coke exhibits stable and compliant cold and hot strength indicators, which can reduce coal blending costs and diversify coal blending resources, thus ensuring supply chain security.

The present application relates to a kind of gravity balance type tamping machine and its working method, the gravity balance type tamping machine includes rack, tamping hammer, hammer lifting driving device, counterweight box, flexible connecting mechanism, lock hammer holder, hammer lifting holder and safety stop device.Gravity balance type tamping machine uses gravity balance type synchronous transmission system, through flexible connecting mechanism, hammer lifting driving device is combined with lock hammer holder, lifting holder and safety stop device organically, realize that driving end is separated from clamping end completely, the synchronous movement error of clamping end and driving end is ≤0.5mm, and working stability is high;Through multi-dimension sensor fusion, amplitude modulation frequency modulation intelligent closed-loop control, realize the accurate control of hammer lifting and drop hammer, ensure that coal cake tamping is uniform, and hammer lifting height and frequency can be adjusted in real time according to coal cake thickness / hardness, flexible, safe and reliable.

The present invention relates to the silo (2) for stabilisation of charcoal, comprising: - a wall (12) defining an internal space (13), - an upper aperture (9) arranged in order to receive the charcoal falling under gravity from above the silo (2) to the internal space (13), - a lower aperture (10), the said lower aperture (10) having - a blocking state, and - an open state, the silo (2) comprising a plurality of lateral apertures (11, 18, 19) distributed regularly about a longitudinal axis of the silo (2) and configured in order to be connected to a gas flow dispenser (24) in order to inject a gas flow into the internal space (13), the silo (2) furthermore comprising a conical top (15), an upper extremity (16) of the said conical top (15) being aligned with the upper aperture (9) having the objective of ensuring a homogenous fall of the charcoal into the internal space (13) through the upper aperture (9).

This application discloses a method and system for adjusting the volatile matter content of blended coal. The method is applied to an adjustment system and includes: obtaining high-volatile coal and low-volatile coal from a first database based on a preset first quality requirement; obtaining a first blending ratio from a second database, wherein the coal types in the first blending ratio include the high-volatile coal and the low-volatile coal; obtaining first data from the first database based on the first blending ratio, wherein the first data is the delivered price of the coal type corresponding to the first blending ratio; calculating the price difference between the delivered prices of the high-volatile coal and the low-volatile coal, and comparing the first calculation result with a preset threshold to obtain a first comparison result. This method is simple to operate, highly efficient, and provides strong guidance, laying the foundation for maximizing the production efficiency of blended coal coking.

A method for adjusting the moisture content of raw materials, a method for producing coke, and a device for adjusting the moisture content of raw materials are provided, which can be adjusted to an appropriate amount according to the particle size. [Solution] The method for adjusting the moisture content of raw materials is a method for adjusting the moisture content of raw materials performed by a raw material moisture content adjustment device (14) in a humidity control facility having a conveying line for conveying raw materials crushed by a pulverizer (2), a measuring device for measuring the particle size of the conveyed raw materials, and a humidity control device (4) for adjusting the humidity of the raw materials whose particle size has been measured, and includes obtaining the particle size measured from the measuring device and changing the target value of the raw material moisture content of the humidity control device based on the measured particle size.

The utility model discloses a tamping hammerhead self-adaption pressure adjusting device which comprises an installation supporting plate and a supporting plate connected to the top of the installation supporting plate, the supporting plate is connected with a tamping plate through a pressure adjusting assembly, the top end of the pressure adjusting assembly is connected with a first stabilizing column, the outer surface of the first stabilizing column is provided with a connecting spring in an embedded mode, and the connecting spring is connected with the pressure adjusting assembly. A bearing plate is fixed to the top of the first stabilizing column. A first stabilizing block is vertically fixed to the outer side of the supporting plate, a mounting motor is connected to the outer side of the first stabilizing block, and a guide block is mounted at the output end of the outer side of the mounting motor. According to the self-adaptive pressure adjusting device for the tamping hammer head, abrasion between parts can be reduced during downward pressing through the arrangement of a guide block and a connecting wheel, meanwhile, the downward pressing stability can be improved through sliding of a second stabilizing column in the downward pressing process, the downward pressing distance can be adjusted through the arrangement of an adjusting assembly, and the adaptability can be conveniently adjusted according to requirements.

The invention belongs to the technical field of coal blending and coking methods, and particularly relates to a coal blending and coking method for directionally regulating and controlling organic sulfur in coal gas. The method comprises the following steps: S1, respectively measuring conventional process indexes of single coking coal; S2, blending coal according to 0-9% of gas-fat coal, 30-44% of 1 / 3 coking coal, 11-16% of fat coal, 30-38% of coking coal and 10-14% of lean coal; s3, calculating the total sulfur of the mixed coal, and predicting the total sulfur of coke and the total organic sulfur in the coal gas by utilizing the prediction model; s4, when the total sulfur of the mixed coal is not changed, adding the low-sulfur gas-fat coal or reducing the proportion of the high-volatile gas-fat coal; s5, carrying out a small coke oven simulation coking test on the optimized blended coal, and determining a final coking coal ratio according to a test result; and S6, crushing the mixed coal sample, and then carrying out coking operation. On the premise of meeting the quality requirement of the high-quality metallurgical coke, the high-sulfur coal resource with a certain price advantage can be scientifically and reasonably matched.

The present application belongs to the technical field of computing in the metallurgical industry, and provides a coking coal blending precision calculation method and an implementation system, which comprises: collecting the cumulative coal discharge and instantaneous rate of each silo in real time, synchronously monitoring the weighing signal fluctuation characteristics, identifying and marking the false data section caused by the suspended material and the rate mutation section at the collapsing moment; suspending the use of the original cumulative amount for interpolation calculation for the false data section, estimating the actual coal discharge per minute according to the historical coal discharge trend of the adjacent normal period, and retaining the original rate value for the collapsing mutation section; merging the estimated value, the collapsing retained value and the normal section interpolation result in time sequence to form the corrected actual coal discharge per minute sequence; based on the corrected actual coal discharge, the actual coal discharge per minute is calculated according to the coal type, the blending precision is determined by comparing the actual coal discharge per minute with the planned proportion; and based on the corrected actual coal discharge proportion, the theoretical value and the upper and lower limits of the quality plan of each component are calculated, and the quality precision index is generated by comparing the mixed coal test results.