21 results about "Coal product" patented technology

This application belongs to the field of coal product testing and analysis technology, and particularly relates to a method, device, and computer equipment for predicting coal sample test values. The method, device, and computer equipment provided in this application, based on spectral analysis, predict coal sample test values ​​by collecting near-infrared and laser-induced breakdown spectra of the original coal sample, followed by wavelet decomposition and dimensionality reduction to generate a feature fingerprint matrix. This achieves effective fusion and dimensionality reduction of the two spectral data, preserving key spectral features of the organic and inorganic elements in the coal sample, providing fundamental data for subsequent model training. Furthermore, a genetic algorithm is used to optimize the feature weight vector of the feature fingerprint matrix to reconstruct the feature space. Abnormal samples are eliminated by comparing the ash content prediction with a preset threshold, highlighting the key spectral features for test value prediction. By eliminating interfering samples, the specificity of the feature space and the reliability of the data are improved.

An oil-in-water emulsion comprising an asphalt and purified coal product (PCP) is provided, wherein the PCP is in particulate form, and wherein at least about 90% by volume (% v) of the particles are no greater than about 25 μm in diameter; wherein the PCP has an ash content of less than about 10 wt %. Methods are also provided for the use of PCP as a stabilizing additive in the manufacture of asphalt containing emulsions.

The application discloses a coal block crusher cleaning device, relates to the technical field of coal mine production, and improves the problems that if the effective interval adjustment of the brush plate is difficult, on one hand, it is difficult to maintain stable cleaning strength only by intermittent extrusion force, leading to incomplete cleaning of coal cinder, on the other hand, the coal cinder that is not cleaned in time can be mixed into a subsequent processing flow, affecting the quality of coal products, reducing the market competitiveness of products and the like, and comprises a box body, the cleaning mechanism comprises an electric cylinder and a push plate, and the other side surface of the push plate is fixedly provided with brush strips and spraying pipes respectively, the application can stably move the push plate installed at the output end through the cleaning mechanism, the brush strips and the spraying pipes connected with the push plate follow synchronously, through the linkage design, the brush strips and the spraying pipes can be accurately close to the crushing mechanism, efficient cleaning and flushing of residual materials on the surface of the crushing equipment are realized, and the cleaning effect is obviously improved.

The present application provides a gasification slag extraction and recycling system and process to solve the problems of complex process, low recovery rate, high cost, and failure to achieve ideal utilization value, and inability to effectively improve the comprehensive utilization efficiency of gasification slag. The system includes a clean water pool, a gasification slag stirring pool, a first vibrating screen, a first sorting machine group, a second sorting machine group, and a second filter press; the discharge port of the gasification slag stirring pool is connected with the feed port of the first vibrating screen; the under-screen discharge port of the first vibrating screen is connected with the feed port of the first sorting machine group; the coarse concentrate discharge port of the first sorting machine group is connected with the feed port of the second sorting machine group; the concentrate discharge port of the second sorting machine group is connected with the second filter press. Glass crystals, tailing coarse particles, high-ash, fine tailings, fixed carbon, high-heat quality coal, and fine coal products are obtained by separating and extracting from the gasification slag using the system, which can be directly sold or recycled through a recycling production line.

The invention discloses an artificial intelligence control system for coal product inspection, which comprises a coal inspection system, an inspection data preprocessing system, a coal inspection parameter analysis system, an artificial intelligence remote control system and a model establishment analysis system, and the inspection data preprocessing system is connected with the coal inspection parameter analysis system. The artificial intelligence control system for coal product inspection is provided with the coal inspection system, the coal inspection parameter analysis system, the artificial intelligence remote control system and the model establishment analysis system, various parameters of coal can be conveniently and intensively inspected, the coal inspection effect is improved, the accuracy is higher, and the coal inspection efficiency is improved. Remote control can be carried out through artificial intelligence, a model is established to carry out simulation analysis on detected data, detected parameters are preprocessed, analyzed and evaluated, and whether the coal quality is qualified or not is rapidly detected.

The invention relates to the technical field of clean and efficient utilization of coal, and discloses a low-rank coal mild modification tackifying method based on a reducing gas and an organic solvent, which comprises the following steps: pre-activating the organic solvent and a catalyst in a reducing gas atmosphere; cooling, adding low-rank coal powder with the water content of 3.0-35.0 wt%, and mixing with the pre-activation system; carrying out hydrogenation reaction on the prepared mixture, namely introducing reducing gas into the system to the initial pressure in the initial heating stage, and then continuously heating to the final reaction temperature of 330-390 DEG C to carry out constant-temperature reaction; and finally cooling, separating and drying the product to obtain the modified coal product. According to the present invention, with the gas phase and liquid phase synergistic hydrogenation strategy, the accurate control of the coal depolymerization and the hydrogenation stability is achieved, the excellent caking property is given to the low-rank coal under the mild condition, the reaction condition is mild, the energy consumption is low, the high water content coal can be directly utilized, and the economy is improved.

An oil-in-water emulsion comprising an asphalt and purified coal product (PCP) is provided, wherein the PCP is in particulate form, and wherein at least about 90% by volume (% v) of the particles are no greater than about 25 μm in diameter; wherein the PCP has an ash content of less than about 10 wt %. Methods are also provided for the use of PCP as a stabilizing additive in the manufacture of asphalt containing emulsions.

The utility model relates to the technical field of wind power coal dressing equipment, and discloses modularized coal mine underground wind power coal dressing equipment which comprises a collecting assembly, moving assemblies are fixedly connected to the two sides of the collecting assembly, a sorting assembly is arranged at the upper end of the collecting assembly, and the upper end of the sorting assembly is fixedly connected with one end of a sorting pipe. According to the modularized underground coal mine wind power coal separation equipment, the first separation hopper, the second separation hopper and the third separation hopper correspond to the first separation plate, the second separation plate and the third separation plate one by one, gangue and coal can be accurately classified and separated, wind power generated by the anti-explosion axial flow wind energy generator is blown out through the air blowing opening and penetrates through the air holes of the separation plate bodies, and therefore the separation efficiency is improved. Under the cooperation of wind power and vibration screening, raw coal is sequentially separated on a multi-group sorting plate, the coal product quality and the resource utilization rate are effectively improved, efficient sorting of coal and gangue is achieved, modular design is adopted for equipment, and equipment failures can be rapidly handled or components can be rapidly replaced in the underground limited space.

The present application relates to the technical field of coal mine screening, and specifically discloses a coal mine screening device for coal mining, which comprises a rack, a screening unit, a driving unit and a dredging unit. The dredging unit is arranged between two layers of screen meshes, and the paddle thereof is periodically reciprocatingly rotated under the driving of the driving member to continuously stir the material on the second screen mesh, effectively breaking the arching effect of small coal blocks and ensuring the smoothness of the screening channel. A flow channel and a jet groove are arranged in the rotating shaft and the paddle of the dredging unit, and when the paddle is rotated to the optimal angle perpendicular to the screen mesh, the gas supply member instantaneously sprays a gas flow to the mesh hole, powerfully removing foreign matters and sticky coal sludge stuck in the mesh hole and effectively solving the problem of screen mesh blockage. Meanwhile, the capillary water film formed between the sticky coal sludge and the surface of the screen mesh is broken, the separation and shedding of water are accelerated, the water content of the small coal blocks screened finally is effectively reduced, and the quality of the coal product is effectively improved.

The utility model relates to the technical field of middling coal re-separation, in particular to middling coal separation equipment and a coal separation system. The utility model provides middling coal separation equipment which is used for middling coal re-separation, and middling coal raw materials contain middling coal blending medium liquid. The middling coal separation equipment comprises a medium drainage device, a mixing chamber, a conveying system and a separation device, the feeding end of the mixing chamber is communicated with the oversize material discharging end of the medium drainage device; and the conveying system is used for conveying the middling coal re-separation medium liquid into the material mixing chamber and conveying the materials in the material mixing chamber into the separation device. The middling coal separation equipment is combined with an original raw coal separation system to re-separate middling coal products of the raw coal separation system, clean coal in the middling coal products is recycled, scarce coal resources are fully utilized and protected, and huge economic benefits are created.

The invention discloses a method for preparing a trace element humic acid fertilizer with high fulvic acid content by activating weathered coal based on a quaternary metal hollow carbon catalyst. The preparation method comprises the following steps: firstly, preparing a Fe / Zn / Ce co-doped hollow carbon coated ZIF-67 catalyst by a hydrothermal-calcination method; then, weathered coal and compound alkali are subjected to first-time medium-temperature activation and then mixed with a ternary oxidant system and a catalyst for second-time medium-temperature activation, and finally, a weathered coal product is compounded with a bonding slow-release agent. The prepared catalyst has a hierarchical porous structure and rich active sites, a composite oxidant system generates a synergistic oxidation effect, the humic acid content, the fulvic acid content and the trace element content in the weathered coal are remarkably improved by a two-step medium-temperature activation process, the fertilizer efficiency of the product is lasting, and the catalyst has remarkable economic and environmental benefits. The obtained fertilizer is particularly suitable for field crops such as corn in brown soil and saline-alkali soil, can remarkably promote crop growth and improve the soil structure, and has remarkable economic and environmental benefits.

This invention belongs to the field of efficient coal conversion and utilization technology, specifically a method for modifying coal using a solvothermal method and the modified coal. Coal is mixed with an organic solvent in a sealed container for heat treatment, followed by vacuum distillation to remove the solvent. After cooling, modified coal is obtained. During the heat treatment, solvent molecules penetrate and act on the macromolecular network of the coal, selectively breaking weak chemical bonds such as aliphatic side chains and ether bonds. This moderately dissociates and activates the inherent three- to five-ring aromatic clusters in the coal, forming a colloidal precursor rich in active small molecules. Then, direct vacuum distillation occurs, resulting in mild structural rearrangement and physical cross-linking, ultimately forming a uniform, dense, and highly adhesive solid modified coal product.

This utility model discloses a safe coal chemical distillation device, belonging to the field of coal chemical distillation technology. The device includes a main body comprising a reactor and a distillation column. The reactor includes a lower tank and an upper tank. The upper tank has an internal cavity. An exhaust pipe connecting the upper tank cavity to the distillation column cavity is formed on the top wall of the upper tank. A collection section is formed on the bottom wall of the upper tank, and a collection trough communicating with the internal cavity is formed on the top wall of the collection section. Multiple baffles are formed along the circumference of the exhaust pipe on the inner wall of the internal cavity, with drainage gaps between adjacent baffles. By setting an internal cavity inside the upper tank and setting multiple baffles along the circumference of the exhaust pipe on the inner wall of the internal cavity to form drainage gaps, the steam that comes into contact with the exhaust pipe and the internal cavity beforehand can be effectively diverted into the collection trough as liquid water droplets, preventing the liquid water droplets from flowing back into the reactor and affecting the coal product mixture and water hammer effect, thus improving the recovery rate and distillation effect of the distillation products.

The application discloses a kind of production of marine coal hydrocracking method.The method uses the hydrogenation refining reactor and the hydrogenation cracking reactor of series connection, including the following steps: wax oil raw material is first carried out hydrogenation refining in hydrogenation refining reactor, the obtained hydrogenation refining stream enters hydrogenation cracking reactor, the obtained product is separated and fractionated, to obtain light naphtha, heavy naphtha, marine coal, diesel and tail oil fraction;Wherein along the liquid phase material flow direction, hydrogenation cracking catalyst bed and post-hydrogenation refining catalyst bed are sequentially arranged in hydrogenation cracking reactor;Material P is introduced between hydrogenation cracking catalyst bed and post-hydrogenation refining catalyst bed;Air cooling device is arranged before the obtained product is fractionated, wherein the air cooling device is water injection, so that material P in product is taken out of reaction system by water phase.The method can improve the stability of marine coal product while improving the yield of marine coal product in hydrogenation cracking device.

The application provides a coal industry chain multi-scale coupling network element emission detection method and device, the method comprises the following steps: according to different consumption scenarios, generating the element migration characteristics in the coal products in different regions according to the full sample micro data set and the localized element content data set; through the mass balance and material flow balance method, the multi-medium emission of the elements in the point sources is generated according to the element migration characteristics in the coal products in different regions and the point source information, the environmental extended multi-region input-output model is constructed and the consumption path optimization is carried out, and the optimal consumption path is generated; based on the optimal consumption path and the multi-medium emission of the elements in the point sources, the multi-source data gridding is carried out, the element emission distribution map of the multi-scale coupling network is generated, a full-chain energy-material-carbon-pollution coupling network is constructed, the systematic tracking of the carbon and pollutant migration path of the coal full industry chain can be realized, and quantitative decision support for multi-target collaborative management is provided.

The invention relates to a negative electrode carbon material and a preparation method thereof, a negative electrode and a sodium ion battery. The La / Lc value of the negative electrode carbon material is 2.4 to 2.7. The preparation method comprises the following steps: (1) performing crushing, purification treatment, pre-oxidation treatment and first carbonization treatment on raw coal to obtain a carbonized coal product; (2) mixing and extruding the carbonized coal product and asphalt to obtain a coal / asphalt mixture; and (3) carrying out second carbonization treatment on the coal / asphalt mixture. The negative electrode carbon material provided by the invention can improve the capacity and the first coulombic efficiency of the sodium ion battery, is low in processing cost, and is also beneficial to industrial amplification.

This invention proposes a method and system for controlling the ash content of clean coal in a heavy media separation process. The method includes: collecting historical data of the heavy media separation process; data preprocessing; constructing and training a state estimation model and a system dynamic model; and performing real-time control of the clean coal ash content based on the constructed state estimation model and system dynamic model. This invention effectively solves the modeling problem of large time delay characteristics in the heavy media separation process, comprehensively considers the influence of feed pressure on the clean coal ash content, enabling the model to more accurately learn the underlying physical characteristics of the heavy media separation process, and can promptly take appropriate control actions to compensate for the influence of external interference factors. It has a fast response speed, strong anti-interference ability, and is insensitive to noise in ash content measurement. Applying this invention to production can improve the quality of coal products through precise control of clean coal ash content; it can also fully realize automated control, reduce the labor intensity of operators, and improve production efficiency.

The invention provides a dry separation system with a middling coal re-separation function, which comprises a first-section separation unit, a second-section separation unit and a third-section separation unit, the first-section separation unit comprises a first-section separation bed, a first-section air inlet device and a first-section vibration motor, the first-section vibration motor is used for driving the first-section separation bed to vibrate, and the first-section air inlet device is positioned below the first-section separation bed; the second-section sorting unit comprises a second-section sorting bed, a second-section air inlet device and a second-section vibration motor used for driving the second-section sorting bed to vibrate, and the second-section air inlet device is located below the second-section sorting bed; the inlet end of the middling coal product chute is used for being connected with a middling coal outlet of the discharging end of the first-section separation bed, and the outlet end of the middling coal product chute leads to the second-section separation bed. Efficient re-separation of middling coal is achieved through structural integration and innovation of the two sections of separation beds, equipment arrangement is simplified, and production efficiency and separation precision are improved.

The utility model discloses a kind of coal gangue sorting chute anti-blocking protection devices, it is related to anti-blocking protection device technical field, the coal gangue sorting chute anti-blocking protection device includes chute mechanism, and the chute mechanism bottom is fixedly connected with sorting discharge end by multiple bolts;The sorting discharge end is equipped with coal gangue sorting mechanism;The utility model, when using, chute blockage checker and anti-blocking vibrator, auxiliary anti-blocking vibrator cooperate, real-time monitoring and actively dredge, effectively reduce the blockage probability of chute main body, sorting base, reduce the shutdown caused by blockage, improve sorting operation continuity;Linkage mechanism of telescopic pneumatic cylinder, transmission arm, rotating shaft and sorting baffle, sorting baffle angle can be flexibly adjusted, adapt to different coal gangue characteristics, significantly improve sorting precision, protect coal product quality, reduce resource waste.

The invention relates to the technical field of coal mine screening, and particularly discloses coal mine screening equipment for coal mining. A screening unit; a driving unit; and a dredging unit. According to the dredging unit arranged between the two layers of screens, a poking plate of the dredging unit is driven by a driving piece to periodically rotate in a reciprocating mode, materials on the second screen are continuously turned over, the arch bridge effect of small-particle coal briquettes is effectively broken, and it is guaranteed that a screening channel is unblocked; a flow channel and an air injection groove are formed in a rotating shaft and a shifting plate of the dredging unit, when the shifting plate rotates to the optimal angle perpendicular to the screen, an air supply piece instantly injects air flow to meshes, foreign matter and sticky and wet coal slime stuck in the meshes are forcefully removed, and the problem that the screen is blocked is effectively solved; and meanwhile, a capillary water film formed between sticky and wet coal slime and the surface of the screen is broken, water separation and falling are accelerated, the water content of finally screened small-particle coal briquettes is effectively reduced, and the quality of coal products is effectively improved.

The utility model relates to the technical field of middling coal recleaning, in particular to middling coal fine separation equipment and a coal separation system. The utility model provides middling coal fine separation equipment which is used for middling coal re-separation and comprises a screening device, a separation device, a material mixing chamber, a medium mixing chamber and a conveying system. The screening device comprises a first screen assembly, the first screen assembly is used for medium drainage of middling coal raw materials from the raw coal separation system, the middling coal raw materials subjected to medium drainage enter the mixing chamber, and middling coal medium blending liquid generated by medium drainage enters the medium blending chamber; and the conveying system is used for conveying the materials in the blending medium chamber and the clean coal blending medium liquid from the raw coal sorting system into the mixing chamber, and is used for conveying the materials in the mixing chamber into the sorting device. The middling coal fine separation equipment is combined with an original raw coal separation system to re-separate middling coal products of the raw coal separation system, clean coal in the middling coal products is recycled, scarce coal resources are fully utilized and protected, and huge economic benefits are created.