32results 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.

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.

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.

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 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.

A process for removing sulfur from a sulfur-containing solid carbon-based material includes adding a sulfur-containing solid carbon-based material to an aqueous electrolyte solution comprising an effective amount of an electrolyte in an electrochemical cell, and subjecting the aqueous electrolyte solution to an effective voltage and current to at least partially oxidize at least a portion of sulfur in the sulfur-containing solid carbon-based material, thereby generating oxidized sulfur and a reduced sulfur-containing solid carbon-based material. The reduced sulfur-containing solid carbon-based material has a lower sulfur content by wt. % than the sulfur-containing solid carbon-based material.

To provide a base composition for needle coke, green coke and a method for producing the same, needle coke for graphite electrodes and a method for producing the same, and a method for producing graphite electrode which allow for the suppression of puffing in needle coke, enhancing the manufacturing yield and properties of graphite electrodes, without the imposition of significant costs during the production of needle coke.SOLUTION: A base composition for needle coke is used in the production of graphite electrodes, wherein an inhibitor is included in the base pitch. Needle coke for graphite electrodes, derived from the base composition for needle coke, is used as aggregate, which is subjected to graphitization to make a graphite electrode.SELECTED DRAWING: None

The utility model relates to coking technical field. The utility model discloses a kind of rammer for coking test, including fixed cylinder, the top of the fixed cylinder is fixedly connected with telescopic cylinder, the bottom of the telescopic cylinder is fixedly connected with the block, the inner wall of the fixed cylinder is slidably connected with sliding rod, the outside of the sliding rod is fixedly connected with sliding block, the top of the sliding block is fixedly connected with compression spring, further including: knock component, the top of the knock component is fixedly connected with the bottom of sliding rod, this rammer passes through setting knock component, ramming hammer will bear greater impact force in ramming operation. When ramming hammer is in contact with coal material, the reverse impact force that coal material gives ramming hammer can be transmitted to the inside of protective shell, and then make buffer block slide upwards along limiting rod, consume and disperse part of impact force, prolong the service life of equipment key components.

This invention discloses a method for the resource utilization and coal blending combustion of steel rolling sludge. The method involves mixing bituminous coal A with steel rolling sludge to prepare a mixture; feeding the mixture into a hot air dryer to prepare a mixed fuel; calculating the contribution of the steel rolling sludge to the volatile matter, ash content, and carbon content of the mixed fuel according to simplified rules; blending the mixed fuel, bituminous coal B, and bituminous coal C according to a coal blending model to prepare a blended coal; determining the R90 fineness of the blended coal obtained by pulverizing it in a coal mill based on the volatile matter content; using the obtained blended coal as fuel in a pulverized coal boiler for power generation; and determining the technical parameters of the pulverized coal boiler based on the volatile matter content. This invention couples steel rolling sludge with a coal-fired boiler, utilizing the synergistic utilization of oil and iron oxides in the steel rolling sludge. The oil rapidly releases combustible gases in the early stages of combustion, shortening the ignition delay time and improving combustion efficiency. The iron oxides act as a catalyst, promoting the oxidation of carbon particles. This achieves the harmless disposal and energy utilization of industrial solid waste without reducing boiler efficiency.

This invention relates to a method for refining and classifying coking coal based on petrographic and matrix strength, comprising: determining the petrographic composition of the coking coal; placing the prepared sample in a dry distillation reactor for dry distillation reaction; pulverizing; taking a sample with a weight of M0 and placing it in a type I rotary drum for a rotational experiment, then sieving and recording the weight of coke particles larger than 0.2 mm as M1; calculating the matrix strength I. cb = (M1 / M0)*100%; based on the vitrinite content V and matrix strength I in the coal and petrographic composition. cb This invention enables the detailed classification of coking coal. It can quickly distinguish between coking coal types with similar conventional coal quality indicators and further classify them, providing a reliable basis for coking coal quality evaluation and blending guidance. The method is simple, reliable, low-cost, and timely, making it suitable for coal and coking enterprises and possessing broad application value.

An integrated process and system with processes configured to generate liquid fuels, electricity, and heat from carbonaceous fuel sources. The preferred system combines and maximizes the carbon and energy conversion potential and efficiency of the associated components or subsystems to produce a system for the co-production of fuels and electricity from syngas. The process can produce liquid fuels and electricity from carbonaceous feedstock at net thermal energy efficiencies of greater than 40-50%, which are significantly higher than fuel synthesis or electricity generation alone.

To provide a selection method for easily selecting a modifier that improves a fluidity of coal from a wide range of compounds, and a modifier for improving a fluidity of coal using the selection method, and a method for using the same.SOLUTION: There is provided a selection method of a modifier for improving a fluidity of coal, wherein a compound in which a solubility parameter value δ (SP value) and a temperature T, whichever is lower of a boiling point or a decomposition start temperature, simultaneously satisfy respective predetermined threshold ranges is selected as a modifier for improving a fluidity of the coal. There are also provided a modifier selected using the selection method, a method for modifying coal using the modifier, and a method for producing coke.SELECTED DRAWING: None

This invention provides a coal blending method based on the light and heavy phase content of colloids, comprising: S1: extracting colloids from a single type of coal to obtain the light and heavy phases of the colloids, and calculating the light and heavy phase contents of the colloids; S2: the requirements for the light and heavy phase contents of colloids for different coal types are as follows: the light and heavy phase contents of coking coal are 0.5%-3.5% and 0.5%-4.0%, respectively; the light and heavy phase contents of 1 / 3 coking coal are 1.0%-3.0% and 0.5%-4.0%, respectively. The light phase content of coking coal is 8%-4.5%; the light phase content and heavy phase content of fat coal are 2.0%-5.0% and 1.5%-5.5% respectively; the light phase content and heavy phase content of gas coal are 0.5%-1.5% and 0.3%-1.2% respectively; the light phase content and heavy phase content of lean coal are 0.8%-1.8% and 0.5%-1.5% respectively. This invention uses the light phase content and heavy phase content of plastic mass to guide coal blending, effectively guiding coal blending and coking production, and improving coke quality.

To set a particle size of a low-contracting carbonaceous material to such an optimum particle size as to increase an MS of coke as well as suppress decrease in a DI and a CSR of the coke.SOLUTION: A particle size determination method of a low-contracting carbonaceous material includes: a first step of adding each of a plurality of low-contracting carbonaceous materials differing in particle size classes to coal and carbonizing the resultant in a test coke oven and then acquiring an MS, a DI and a CSR; a second step of calculating an MS increase margin relative to base coke for each of the particle size classes; a third step of calculating a DI decrease margin relative to the base coke for each of the particle size classes; a fourth step of calculating a CSR decrease margin relative to the base coke for each of the particle size classes; and a fifth step of calculating a first evaluation value which is a ratio between the DI decrease margin and the MS increase margin and a second evaluation value which is a ratio between the CSR decrease margin and the MS increase margin for each of the particle size classes and, on the basis of levels of the first and second evaluation values, determining at least one optimum particle size class out of the particle size classes of the low-contracting carbonaceous materials.SELECTED DRAWING: Figure 5

This utility model discloses a coke raw material processing device, including a mixing drum. A rotatable shaft is located in the center of the mixing drum. A stirring rod is horizontally arranged from top to bottom around the outer periphery of the shaft. A mounting rod is located at the end of the stirring rod in the same vertical direction near the inner wall of the mixing drum. A scraper with automatically adjustable position is mounted on the side of the mounting rod facing the inner wall of the mixing drum. This utility model, by setting a mounting rod at the end of the stirring rod and mounting an automatically adjustable scraper on the mounting rod, allows the scraper to adhere to the inner wall of the mixing drum and rotate with the shaft. During the stirring process, the scraper scrapes against the inner wall of the mixing drum, thereby cleaning away coal dust adhering to the inner wall. The adjustable scraper position can compensate for wear, ensuring the scraper remains in contact with the inner wall of the mixing drum. This maintains the cleanliness of the mixing drum, avoids coal dust waste, and greatly facilitates production operations.

Provided is a method for producing coke that can inhibit a decrease in the coke strength of coke that is produced, even if the coke is produced with a coal blend in which a carbonaceous material having an anomalous surface tension is blended. A method for producing coke includes producing coke by carbonizing a coal blend obtained by mixing formed coal with a coal fines mixture, the formed coal including brands of coal, the coal fines mixture including brands of powdered coal. The method includes selecting brands and blending ratios of coal that is included in the formed coal and of coal that is included in the coal fines mixture, such that an interfacial tension γinter of the coal blend and an interfacial tension γp of the coal fines mixture satisfy γinter > γp and γp < 0.03, where the interfacial tension γinter and the interfacial tension γp are calculated from surface tensions of heat-treated coal obtained by heat-treating the brands of coal that are included in the coal blend and the blending ratios of the brands of coal.

This invention provides a method for predicting coke strength and a method for producing coke, which enable simple and highly accurate prediction of coke strength. [Solution] A method for predicting coke strength, which predicts the strength of coke produced from blended coal containing two or more coals based on δtot defined by a predetermined formula, wherein the prediction is performed using a prediction formula in which the explanatory variable is δtot and the dependent variable is the coke strength.

To provide a technique that enables highly accurate and stable moisture measurement without performing measurement of bulk density or layer thickness when performing moisture measurement by using a microwave for a measurement object conveyed on a conveyor.SOLUTION: A moisture measurement method for measuring the moisture of a measurement object conveyed on a conveyor includes: a conveyance amount measurement step of measuring a conveyance weight per unit time of the measurement object conveyed on the conveyor; a microwave transmission step of transmitting a microwave toward the measurement object as a transmission wave; a microwave reception step of receiving the microwave which has been transmitted in the microwave transmission step and has passed through the measurement object as a reception wave; a microwave change amount calculation step of calculating a change amount by comparing the transmission wave and the reception wave; and a moisture content calculation step of calculating a moisture content of the measurement object on the basis of the change amount calculated in the microwave change amount calculation step and the conveyance weight per unit time of the measurement object measured in the conveyance amount measurement step.SELECTED DRAWING: Figure 2

The invention relates to a process for producing synthesis gas from a carbonaceous processing material, having the following steps: subjecting the carbonaceous processing material to hydrothermal carbonization at a first temperature within a range from 100 to 400°C and a pressure of 20 to 50 atm (2.027 x 106 Pa to 5.066 x 106 Pa), in order to produce carbon, b) gasifying the carbon produced in step a) at a second temperature in the range from 800 to 1500°C using an electrical heater to establish the second temperature and using CO2 as gasifying agent to produce the synthesis gas.

The utility model relates to the technical field of biomass charcoal drying converter discharge box body, especially fine dry powder collecting device of biomass charcoal drying converter discharge box body, including collecting device body, the collecting device body is a box, and the Y direction side of collecting device body is equipped with the feed hole for connecting drying converter, the bottom of box is equipped with the conical material guiding portion, and the lower extreme of conical material guiding portion is equipped with the discharge gate, the X direction side of box relative to feed hole is equipped with the flue gas flow guide chamber, and the first baffle, second baffle and third baffle along X direction are sequentially arranged in the up and down staggered distribution of flue gas flow guide chamber, etc.

This invention belongs to the field of coal blending and coking methods, specifically relating to a method for controlling the chlorine content of coke. It includes the following key steps: Step S1: Prepare coal samples of individual coking coals for blending, and determine the total chlorine content, volatile matter, caking index, and maximum thickness of the plastic layer according to national standards; Step S2: Conduct small-scale coking simulation experiments on the selected individual coals, and determine the total chlorine content, total coke yield, coke reactivity, and post-reaction strength of the resulting coke, calculating the chlorine conversion rate; Step S3: Prepare blended coal by adjusting the coal type ratio based on the coal quality characteristics and the chlorine conversion rate. Using this invention, the chlorine content in coal and coke can be effectively controlled. While ensuring coke quality, it allows for the addition of more high-chlorine coals with price advantages, not only expanding the resources of coking coal but also effectively reducing blending costs.

This invention discloses a purification process for the resource-based treatment of tail gas from coking desulfurization wastewater, comprising the following steps: tail gas from the catalytic conversion process of the desulfurization wastewater is pressurized by a blower via a pipeline; the pressurized tail gas is then piped to the top of the coke oven; 3-8 carbonization chambers are selected at the top of the coke oven, and perforations are made in the refractory bricks under the coal charging hole cover furthest from the riser pipe in each carbonization chamber; the pressurized tail gas is sent into the carbonization chamber for pyrolysis treatment via the coal charging hole. This invention effectively purifies the acidic gases containing hydrogen sulfide, carbonyl sulfide, and carbon dioxide generated during the catalytic conversion process, reduces the risk of ammonia escape, and solves problems such as high washing liquid consumption and poor purification effect, thus ensuring purification effect while reducing operating costs.

A temperature measurement robot for a combustion chamber of a coke oven may comprise: a main body forming a chamber; a robot arm provided in the main body; a temperature sensor provided in the robot arm; a gripper that is provided at the end of the robot arm and holds a lid for opening and closing a hole communicating with the combustion chamber; a door that isolates the chamber from or communicates the chamber with the outside of the main body; and a controller that opens the door in a temperature measurement mode and closes the door in a movement mode.

This invention discloses a method for controlling the yield and composition of coal pyrolysis products. The method includes: pyrolyzing a coal mixture consisting of coal and oil, coal and catalyst, or coal, oil, and catalyst; separating the pyrolysis volatiles through condensation to obtain coal tar, pyrolysis gas, and semi-coke; wherein the coal is lignite, bituminous coal, or a mixture thereof processed to obtain deashed coal, or different coal petrographic components; and the oil is medium-low temperature coal tar heavy oil, medium-low temperature coal tar and its distillate oil, or organic reagents and mixtures thereof with a boiling point of 50-130℃. Based on the composition and structure of coal, this invention starts from the source of coal pyrolysis, influencing the pyrolysis behavior of the coal itself through the addition of oil and catalyst, promoting the release of coal pyrolysis volatiles from the source and controlling the composition of coal pyrolysis volatiles, thereby achieving increased oil production from coal pyrolysis and controlling the composition and distribution of coal tar.

This utility model discloses a shock-absorbing hammer head device for a hammer tamping machine, including a frame. Shock-absorbing mechanisms are installed on the top of both sides of the frame, and a clamping mechanism is installed in the middle of the inner wall of the frame. The shock-absorbing mechanisms effectively reduce vibration during hammer tamping operations, improving the stability and service life of the equipment. Under the action of the shock-absorbing mechanisms, when the hammer head tamps the material, the resulting vibration is effectively absorbed and dispersed by elastic elements such as spring one and spring two, avoiding direct impact of vibration on the main structure of the equipment, thereby reducing wear and failure rate. The clamping mechanism enables the equipment to stably and continuously compact the material during hammer tamping operations. The motor drives the rotating plate to rotate, and the rotating plate drives the movable plate to move up and down via a connecting rod. The movable plate moves stably under the guidance of the guide rod, while spring two and spring three provide additional shock absorption.

The application discloses a method for determining test coke oven load pressure based on metamorphic degree of coking coal, which comprises the following steps: determining a metamorphic degree parameter of a coking coal sample, wherein the metamorphic degree parameter is dry ash-free basis volatile matter or average maximum reflectance of vitrinite; determining a load pressure corresponding to the coking coal sample through a predetermined calculation relationship according to the metamorphic degree parameter; and applying the determined load pressure to the coking coal sample in the process of coking test of a load test coke oven. The application also discloses a coking test system for implementing the method. A quantitative mathematical relationship between the optimal load pressure of the load test coke oven and the metamorphic degree parameter of the coking coal is established for the first time, which breaks through the limitation of the traditional fixed pressure mode, and makes the test condition closer to the real stress state of different coal types in an industrial coke oven. Through the "tailor-made" load pressure for coal types with different metamorphic degrees, the false high coke strength caused by excessive pressure of low metamorphic coal can be effectively avoided.

This invention provides an output device, output method, and program that can output information when replacing fossil fuel-derived coke with biomass coke. [Solution] The output device 10 includes an output means 24 that outputs quantity information corresponding to the amount of biomass coke B whose slag temperature is the same as a predetermined amount of fossil raw material-derived coke C.

The present application relates to the technical field of petroleum chemical industry, and discloses a petroleum coke blending uniform stirring system, which comprises a parameter setting module, a process control module, a uniformity evaluation module, an optimization decision module, a self-adaptive optimization module and a report generation module. The parameter setting module dynamically generates optimized blending parameters and outputs setting data. The process control module is called to execute stirring actions and real-time monitor the mixing state, and output process data. The uniformity evaluation module constructs an evaluation matrix, analyzes the blending uniformity level and outputs evaluation results. The optimization decision module matches a historical database to generate decision instructions and feedback adjustment parameters. The self-adaptive optimization module analyzes the system performance profile, identifies weak points and generates optimization instructions. The report generation module integrates and outputs uniformity reports. The present application ensures the uniformity of petroleum coke distribution, improves the reliability and self-adaptive control capability of the stirring process.