188 results about "Coal storage" patented technology

The invention discloses a coal bunker reserve real-time monitoring method integrating a laser radar and a camera. The method comprises the following steps: step 1, carrying out space-time joint calibration and hardware-level synchronization on a laser radar and a camera, and establishing a projection relationship between a point cloud and an image; 2, cooperatively collecting coal bunker data based on the calibration parameters, and obtaining a point cloud and a high-resolution image; step 3, heterogeneous preprocessing is carried out on the collected point cloud and the image, denoising, segmentation and down-sampling are carried out on the point cloud, semantic segmentation is carried out on the image, and coal and foreign matters are identified; step 4, based on image texture and point cloud coordinate coupling mapping, reconstructing a three-dimensional model with a semantic tag, projecting the point cloud to an image plane to perform feature matching so as to endow the texture, and fusing image semantic information to correct the model; and 5, dynamically calculating the volume of the coal pile by using the semantic three-dimensional model to realize real-time monitoring of reserves. The system overcomes the limitation of a single sensor, achieves the real-time and high-precision monitoring of the reserves of the coal bunker, and effectively improves the intelligent level of coal bunker management.

The invention discloses a coal storage and transportation intelligent management method and system, relates to the technical field of intelligent management systems, and aims to solve the problems of lack of environment monitoring, scheduling decision lag, extensive safety response and serious data island in the prior art. The method comprises the following steps: collecting the physical state, environmental parameters and operation behavior data of a coal storage yard in real time through a distributed sensor network; constructing a three-dimensional dynamic digital twinborn model and inputting the model into a time sequence neural network to predict the risk of spontaneous combustion, collapse or dust explosion in the future; and generating a dynamic scheduling instruction in combination with the task priority and the equipment state, and triggering a multi-level security response mechanism. The system comprises a sensor network module, a data fusion modeling module, a risk prediction module, a scheduling optimization module, and a closed-loop control and safety response module. According to the scheme, safety early warning preposition, scheduling decision intelligent optimization and resource energy efficiency collaborative improvement in the storage and transportation process are achieved, and the response capability and operation reliability of the coal supply chain are remarkably enhanced.

The invention discloses a storage and supply system for enhancing flexible operation of a coal power unit by a pulverized coal bunker, particularly relates to the field of thermal power generation, and is used for solving the problem that fuel conveying and combustion are asynchronous during rapid load adjustment of the coal power unit. Coordination control is carried out with the unified fuel demand as the center, the lag effect of pulverized coal storage and release is accurately predicted and counteracted before pulverized coal enters a boiler, and the pulverized coal conveying rhythm is closely aligned with the actual coal use demand. In this way, the oxygen amount and temperature fluctuation in the boiler combustion process are greatly reduced, and the problems that due to the fact that fuel supply is fast and slow, combustion in the boiler is not stable, and pollutant emission is increased are solved; meanwhile, the whole control method can automatically learn and adjust, frequent human intervention is not needed, operation is simpler, more convenient and safer, the capacity of a power plant for rapidly adapting to power grid load changes is remarkably improved, and the flexible advantage of pulverized coal storage and supply is fully played.

The invention provides a coal storage temperature detection method and device, electronic equipment and a storage medium. An ultrasonic generator is arranged on the upper portion of the ground of a coal yard and transmits an ultrasonic signal to a coal pile; an ultrasonic signal receiver is arranged at the lower part of a ceiling of a coal yard to receive an ultrasonic signal penetrating through a coal pile and obtain propagation time and energy attenuation information of the ultrasonic signal, and temperature distribution of each area in the coal pile can be calculated based on the propagation time and the energy attenuation information in combination with a preset corresponding relation between ultrasonic sound velocity and temperature; and when the temperature of any area of the coal pile exceeds the preset coal ignition point threshold value, an alarm signal is triggered and position information of the corresponding high-temperature area is output, so that the problems that in the prior art, due to the fact that heat cannot be dissipated in time after coal is stacked, temperature distribution conditions of the middle and lower layers of the coal seam are difficult to master and early warning cannot be performed in time are solved. The spontaneous combustion of the coal is easily caused.

The invention provides a dual-time-scale optimization scheduling system and method considering diesel storage insurance supply and new energy consumption, and the method comprises the steps: collecting a plurality of data in real time, and outputting a historical data set and real-time monitoring data to a scheduling module; based on the wind and light output predicted values and load predicted values of the day before dispatching and the dispatching day, a multi-target optimization model is constructed, an energy storage charging and discharging plan, a diesel generator start-stop plan and an electric vehicle dispatching instruction are output, and cross-day energy transfer is achieved; on the basis of a model prediction control principle, 15 minutes are taken as a scheduling step length, a day-ahead scheduling plan is corrected in a rolling manner in combination with ultra-short-term source load prediction data, and prediction deviation is stabilized; controlling charging and discharging switching of the energy storage system, dynamic adjustment of the charging power of the electric vehicle and the operation state of the charging pile; through cooperative operation of day-ahead pre-scheduling and intra-day rolling optimization, source-load balance and low-carbon operation are realized. According to the scheduling system, long-period energy planning and short-period dynamic correction are both considered, and the self-consistency and low-carbon property of the off-grid charging station are improved.

A dust suppression material with dual network reinforced structure and its preparation method is provided, which relates to the field of dust control technology. The material comprises by weight: 0.1-0.5 parts of sesbania gum, 0.1-0.9 parts of polyacrylamide, 0.1-0.5 parts of carboxymethyl cellulose, 0.06-0.14 parts of crosslinking agent, 0.11-0.19 parts of oxidant, 0.1-0.3 parts of water retaining agent, 0.2-1 parts of wetting agent, and the balance is distilled water. The dust suppressant with dual network reinforced structure produced by the present disclosure can effectively improve the hydrophilicity and adhesion of dust, form a dense protective film on the surface of dust, meet the requirements of dust suppressant adhesion and wettability for underground coal mining operations and outdoor coal storage filed, and will not cause secondary pollution to the environment.

The utility model discloses a coal mill powder outlet pipe external bypass powder bin peak regulation system which is installed on a powder outlet pipe at an outlet of a coal mill and comprises a bypass powder bin, a bypass air powder pipe, a powder storage control valve, a powder feeder and an exhaust pipe. A bypass connector, a powder feeding port and an air return port are formed in the side wall of the powder outlet pipe. An air-powder separator is arranged at the top in the bypass powder bin, and an air-powder inlet and an exhaust gas outlet are formed in the air-powder separator; one end of the bypass pulverized coal pipe is communicated with the bypass interface, and the other end is tangentially connected into the pulverized coal inlet; the powder storage control valve is arranged on the bypass interface; a powder feeding inlet and a powder feeding outlet are formed in the powder feeder, the powder feeding inlet is communicated with the bottom of the bypass powder bin, and the powder feeding outlet is communicated with the powder feeding opening; and the other end of the exhaust pipe is communicated with the air return port. The device realizes rapid and accurate dynamic matching of a fuel system and a combustion system, is safe and environment-friendly, has an ingenious, simple and practical structure, and is easy to transform and popularize.

The utility model relates to the technical field of coal conveying fly flow, and discloses a three-way baffle plate capable of adjusting a shunting mode, which comprises a three-way pipe body, a baffle plate central shaft is fixedly connected between two side walls in the three-way pipe body, two side surfaces of the three-way pipe body are fixedly connected with support frames, and the three-way pipe body is fixedly connected with the baffle plate central shaft. The two ends of the baffle center shaft extend to the exterior of the three-way pipe body and are fixedly connected between the two supporting frames correspondingly, two baffle shaft sleeves are rotationally arranged on the surface of the baffle center shaft, baffles are fixedly connected to the upper surfaces of the two baffle shaft sleeves correspondingly, and the three-way baffle is flexible in operation mode and high in practicability. The one-to-one operation mode of the upper-level material conveying belt and the lower-level material conveying belt can be met, the one-to-two operation mode can also be achieved, the coal storage structure of a coal storage yard can be optimized for a power plant where coal as fired needs to be blended, and the coal as fired can be blended in the conveying process and supplied to two units at the same time.

The embodiment of the invention provides an intelligent control method for coal conveying. The method comprises the steps that a to-be-used coal bunker used for containing coal is determined; coal bunker evaluation attributes are determined; according to the coal bunker evaluation attribute, determining a target coal bunker for placing the target coal material; periodically inputting the material level information of the target coal bunker, the separation efficiency of the shallow slot separator, the conveyor belt speed corresponding to the target coal bunker and the current coal flow speed into a material level prediction model to obtain predicted material level information of the target coal bunker in the predicted duration; and according to the predicted material level information and the preset material level information of the target coal bunker, target control information of shallow slot sorting and a conveying belt associated with the target coal bunker is determined. According to the technical scheme of the embodiment of the invention, after the target coal bunker for placing the target coal is determined according to the coal bunker evaluation attribute, the target control information for shallow slot sorting and the conveyor belt is determined according to the predicted material level information, so that the target coal can be efficiently conveyed into the target coal bunker, the error is reduced, and the effect of accurate warehousing is achieved.

The invention discloses an open pit coal mine ground production system collaborative operation method based on an Agent simulation technology, and belongs to the technical field of coal storage and transportation. The method comprises the following steps: constructing a data acquisition and environment perception Agent, an anomaly detection and coordination management Agent, an optimization calculation Agent and a control execution Agent; the method comprises the following steps: collecting coal flow, coal type characteristics and equipment operation data of a conveying system in real time, and constructing a multi-objective optimization function taking energy consumption minimization, space utilization rate maximization and equipment load balance as objectives in combination with bin space capacity, coal pile three-dimensional form and environmental parameters of a storage system; an improved particle swarm optimization algorithm is adopted to solve optimal control parameters, and the belt conveyor speed, the coal type distribution priority and the emergency path are dynamically adjusted; through a closed-loop feedback mechanism, material blockage, shipping space overrun and equipment faults are monitored in real time, a self-healing strategy is triggered, and the model is updated. The hysteresis control defect of a traditional storage and transportation system is overcome, the operation efficiency is remarkably improved, and energy waste is reduced.

The invention discloses a chlorine-free environment-friendly coal transportation and storage antifreezing agent and a preparation method thereof, and belongs to the technical field of coal storage and transportation, the preparation method of the chlorine-free environment-friendly coal transportation and storage antifreezing agent comprises the following steps: heating and stirring natural grease, vacuumizing and dehydrating, then adding an amine compound to carry out modification reaction, and then adding an amine compound to carry out reaction to obtain the chlorine-free environment-friendly coal transportation and storage antifreezing agent. Cooling after the reaction is finished to obtain an intermediate product 1, adding water, a thickening agent and a metal corrosion inhibitor into the intermediate product 1, and uniformly stirring to obtain the chlorine-free environment-friendly coal transportation and storage anti-freezing agent. The anti-freezing agent prepared by the invention forms a weak interface on the surfaces of coal and carriages or warehouses, is easy to damage, and prevents a freezing phenomenon; a chlorine-containing component is not used, so that the corrosion problem caused by chloride ions is fundamentally eliminated; meanwhile, the cleaning agent has certain emulsifying capacity, so that the cleaning agent is relatively simple during cleaning; and more raw materials are natural grease or recovered grease, so that the method has the advantages of being green and environment-friendly.

The invention discloses a heat collection-heat storage system flow regulation and control method for improving the flexibility of a light-coal-storage complementary power generation system. The light-coal-storage complementary power generation system comprises a coal-fired power generation unit and a heat collection-heat storage system. With the control targets of coping with solar fluctuation and meeting the rapid load change requirement of the light-coal-storage complementary power generation system, the actual value of the mass flow of a working medium on the heat collector side is calculated and adjusted by collecting the solar radiation intensity and the operation data of the light-coal-storage complementary power generation system; the change rate of the water supply mass flow entering the working medium-water heat exchanger is calculated on line according to the variable quantity required by the working capacity of unit steam, and the actual value of the water supply mass flow entering the working medium-water heat exchanger and the actual value of the working medium mass flow of the working medium-water heat exchanger side are adjusted; and after the variable load instruction is finished, a model prediction control algorithm is adopted to update the actual values of the feed water mass flow entering the working medium-water heat exchanger and the working medium mass flow on the working medium-water heat exchanger side. The method can improve the operation flexibility of the system and is simple to operate.

The utility model relates to the technical field of raw coal storage, in particular to a wall-adhesion-free coal blending anti-blocking partition bin which comprises a bin body, an anti-blocking mechanism and a partition plate, the lower end of the bin body is in a funnel shape, the partition plate is connected with the bin body in a sliding mode and located in the bin body, and the anti-blocking mechanism comprises a rotating block, a connecting frame, four rotating rollers and a driving assembly. The rotating block is rotationally connected with the partition plate, the cross section of the rotating block located below the partition plate is in a T shape, the connecting frame is fixedly connected with the rotating block, the connecting frame is in a cross shape, the four rotating rollers are fixedly connected with the connecting frame, the driving assembly is arranged below the connecting frame, and two openings are formed in the lower end of the partition plate; through the arrangement of the structure, the problems that in the prior art, a raw coal bunker separately stores different coal briquettes through a partition plate, and during coal blending, the coal briquettes fall down and are prone to blocking the lower end of the raw coal bunker are solved.

The utility model discloses a coal bunker dredging device, which belongs to the technical field of coal bunkers and comprises a coal bunker frame, a plurality of adjacent coal storage chambers are arranged in the coal bunker frame, and every two adjacent coal storage chambers are separated from each other through an inner reinforcing rib. A discharging bottom plate is installed at the bottom of each coal storage chamber, and a discharging opening is formed in the middle of each discharging bottom plate. Material tables which are distributed on the left side and the right side of the discharging opening and gradually incline and descend towards the discharging opening are installed above the discharging bottom plate, a dredging turning plate is rotationally installed at the top of each material table through a connecting shaft, and a driving mechanism for driving the dredging turning plates to turn upwards is installed below the discharging bottom plate. When the coal chute at the bottom of the coal bunker conveys coal, the driving mechanism is started to drive the dredging turning plate to turn upwards frequently, so that the flowability of the coal in the coal storage chamber can be improved, the falling speed of the coal in the coal storage chamber is accelerated, and the purpose of dredging the coal is achieved.

The invention discloses an opencast coal mine coal spontaneous combustion incubation period prediction method suitable for a negative temperature condition, and relates to the technical field of coal spontaneous combustion prediction. The method comprises the following steps: firstly, carrying out an oxygen adsorption dynamic experiment on a to-be-detected coal sample at a constant temperature of-20 to 100 DEG C to obtain a low-temperature oxygen adsorption rate constant and establishing a function relationship between the low-temperature oxygen adsorption rate constant and the temperature; secondly, calculating ice melting latent heat according to the ice content in the coal sample to be detected, and introducing the ice melting latent heat as a key energy loss item into the heat-mass transfer model of the coal pile; further, establishing a coal pile energy balance equation comprehensively considering oxidation heat release, ice melting latent heat consumption and a heat dissipation process; and finally, solving the equation through a numerical method, and calculating the time required by the coal pile from the initial negative temperature rise to the critical spontaneous combustion temperature so as to obtain the accurate coal spontaneous combustion latency. The method is particularly suitable for mines in cold regions, surface mines and winter coal storage yards.

This invention relates to a status detection device for a central telescopic discharge pipe in a coal storage bin. Installed between the bin's inlet and the connecting section, the device includes an upper connecting fixed body, a lower connecting sliding body, a spring body, and a detector. The upper connecting fixed body is connected to the lower flange of the bin's inlet, and the lower connecting sliding body is connected to the upper flange of the connecting section. The upper connecting fixed body and the lower connecting sliding body are connected by the spring body. The connecting section is inserted into the first section of the central telescopic discharge pipe and pulls the upper limit stop ring connecting the first section. The detector detects the relative displacement between the upper connecting fixed body and the lower connecting sliding body to determine the current telescopic discharge pipe's extension / retraction state. Compared with existing technologies, this invention can accurately detect the extension / retraction state of the central telescopic discharge pipe in real time without affecting its nested structure, ensuring the stability of the coal storage operation in the bin.

The utility model relates to a circulating fluidization coal-fired boiler which comprises a hearth, a coal falling pipe and a first fire coal storage mechanism, the coal falling pipe is obliquely arranged on the hearth, one end of the coal falling pipe is connected with the hearth, and the other end of the coal falling pipe is communicated with the hearth; the first fire coal storage mechanism is arranged at the bottom of the inner wall of the coal drop pipe and used for storing part of fire coal at the bottom of the inner wall of the coal drop pipe, so that the particle fire coal is prevented from directly colliding with the bottom of the coal drop pipe. During operation, fire coal falls into the hearth from the coal falling pipe to be combusted, the first fire coal storage mechanism is arranged at the bottom of the inner wall of the coal falling pipe, and part of the fire coal is stored at the bottom of the inner wall of the coal falling pipe through the first fire coal storage mechanism, so that particle fire coal is prevented from directly colliding with the bottom of the coal falling pipe; the coal particles are in direct contact with part of coal accumulated at the bottom of the coal drop pipe, direct abrasion to the bottom of the coal drop pipe is prevented, the service life of the coal drop pipe is prolonged, coal leakage and pollution to the surrounding environment are prevented, and meanwhile maintenance cost is reduced.

The invention belongs to the technical field of comprehensive utilization of coal gangue resources, and particularly relates to a layered double-metal hydroxide composite gel flame-retardant material based on coal gangue and a preparation method and application of the layered double-metal hydroxide composite gel flame-retardant material based on the coal gangue. The method comprises the following steps: preparing an acid leaching solution by taking coal gangue as a silicon-aluminum source in a deep eutectic solvent system, and adding metal salt into the acid leaching solution to provide divalent and trivalent metal ions required by a bimetal system; and mixing the pickle liquor with the guar gum / bentonite composite gel to form the composite gel flame-retardant material with a gel support structure. According to the invention, the resource utilization of a large amount of solid waste of the coal gangue is realized, the method also has a green low-consumption process and excellent flame-retardant inhibition performance, and can be widely applied to spontaneous combustion inhibition of a coal gangue storage yard, flame-retardant protection in a coal storage and transportation process and environment-friendly flame-retardant fillers in polymer composite materials and building materials.

The utility model provides a rotary lifting device based on a coal storage silo. The rotary lifting device comprises the coal storage silo and a rotary lifting device arranged at the top of the coal storage silo, the rotary lifting device comprises a stand column, a cantilever, a rotary mechanism arranged between the stand column and the cantilever and a lifting mechanism arranged on the cantilever. Wherein the stand column is vertically arranged at the top of the coal storage silo; one end of the cantilever is rotationally connected with the top end of the stand column; and the hoisting mechanism is movably arranged on the cantilever. By adopting the rotary lifting device based on the coal storage silo, full coverage of the coal storage silo can be realized, manual displacement of overhauling and mounting equipment is omitted, safety accidents are reduced, the construction speed is effectively increased, the working efficiency is improved, and the construction safety is ensured.

The invention relates to the technical field of maintenance equipment, in particular to an auxiliary device used in the maintenance period of a high-pressure heater and a using method of the auxiliary device. In the use process, a first material guide pipe is connected with a material injection opening of a coal mill, meanwhile, a second material guide pipe is connected with existing coal storage equipment, untreated coal is injected into a first screening frame through a material injection frame, meanwhile, an adjusting bolt is released and screwed, and then rotation adjustment of the use angle can be conveniently and rapidly carried out; then, the size of a communicating area of the second screening opening and the first screening opening can be conveniently adjusted by rotating an adjusting ring, so that the coal falling into the first screening frame can be screened under the blocking of the communicating area of the first screening opening and the second screening opening; and small coal can fall into the second screening frame through the first screening opening and the second screening opening.

The invention discloses a coal storage yard rapid three-dimensional reconstruction data acquisition device, which relates to the technical field of coal chemical industry and comprises a guide rail, a fixing mechanism, a moving mechanism, an image acquisition mechanism, a power supply mechanism, a cleaning mechanism and a central control room. The fixing mechanism is arranged below the guide rail, the moving mechanism is arranged on the fixing mechanism, the image collecting mechanism is arranged below the moving mechanism, and the cleaning mechanism is arranged at one end of the fixing mechanism. The moving mechanism, the image acquisition mechanism and the cleaning mechanism are all electrically connected with the power supply mechanism, and the moving mechanism, the image acquisition mechanism and the cleaning mechanism are all electrically connected with the central control room; according to the rapid three-dimensional reconstruction data acquisition device for the coal storage yard, the problems of limited data acquisition visual angle, expensive equipment and the like in the prior art are solved.

The invention discloses a coal bunker temperature 3D imaging system and method, and relates to the technical field of 3D imaging, the coal bunker temperature 3D imaging system comprises a remote center server, a control box and a sensing unit arranged in a coal bunker; the sensing unit and the remote center server are respectively connected with the control box; the control box is used for controlling the sensing unit to collect infrared images of multiple angles and three-dimensional point cloud data of multiple angles of coal stored in the coal bunker; supplying power to the sensing unit; the remote central server is used for carrying out data splicing on the infrared images at the multiple angles to obtain a global infrared orthoimage of coal storage; performing data splicing on the three-dimensional point cloud data of the multiple angles to obtain global three-dimensional point cloud data of coal storage; and matching and fusing the global infrared orthoimage and the global three-dimensional point cloud data to obtain the global three-dimensional point cloud data with the temperature value of the stored coal. The spontaneous combustion risk of the coal bunker is reduced.

The invention relates to the technical field of coal wastewater treatment, in particular to a coal storage yard coal-containing wastewater treatment system which comprises a pretreatment unit used for pretreating coal-containing wastewater; positioning columns are arranged on the inner side wall of the water collecting tank; the floating assembly is arranged on the liquid surface of the water collecting tank in a floating manner; the filter membrane group is used for carrying out membrane filtration treatment on the coal-containing wastewater entering the water collecting tank after pretreatment, the filter membrane group is arranged at the bottom of the floating assembly, a water producing area is arranged between the top of the filter membrane group and the bottom of the floating assembly, and positioning holes corresponding to the positioning columns are formed in the periphery of the filter membrane group, so that the water producing area can produce water under the buoyancy action of the floating assembly. The base floats up and down along the positioning column; the water absorption end of the self-absorption water production equipment is communicated with the water production area, and the self-absorption water production equipment is used for enabling the coal-containing wastewater in the water collecting tank to enter the filtering membrane group under the action of negative pressure and outputting water filtered by the filtering membrane group; and the clean water tank is used for storing effluent from the self-absorption water production equipment. By applying the system, efficient treatment of the coal wastewater can be realized.

The utility model discloses a pulverized coal gasification furnace with a coal storage device, which comprises a gasification furnace body, a mounting plate is arranged on the side wall of the gasification furnace body, a coal storage tank is arranged on the mounting plate, and the pulverized coal gasification furnace further comprises a feed conveying mechanism and a crushing and stirring mechanism which are arranged on the coal storage tank; the feeding conveying mechanism comprises a discharging pipe and a conveying pipe, the discharging pipe is arranged on the bottom wall of the coal storage tank, the conveying pipe is connected to the tail end of the discharging pipe, the tail end of the conveying pipe is arranged in the gasifier body in a penetrating mode and provided with a discharging opening, and a feeding assembly is arranged in the conveying pipe. The utility model belongs to the technical field of pulverized coal gasification furnaces, and particularly relates to a pulverized coal gasification furnace with a coal storage device.

The invention discloses a coal mine transport vehicle convenient to install, and belongs to the field of coal mine transport devices. Comprising a bottom frame, two pairs of clamping rings are symmetrically arranged on the upper surface of the bottom frame, a coal storage frame is arranged on the upper surface of the bottom frame, two pairs of clamping columns are symmetrically and fixedly connected to the lower surface of the coal storage frame, the clamping columns are connected with the interiors of the clamping rings in a clamped mode, and transverse columns are symmetrically and fixedly connected to the outer side wall of the bottom frame; rollers are fixedly connected to the outer side walls of the transverse columns; according to the coal mine transport vehicle, through the unique structural design, convenient installation and stable transportation of the coal storage frame are achieved. During installation, a worker can easily carry the coal storage frame to the position above the bottom frame, the clamping columns and the clamping rings are accurately aligned and clamped, and preliminary positioning is completed. And then, the disc is rotated to drive the threaded column, the transverse plate moves rightwards through threaded transmission, the locking transverse rod is inserted into the locking opening, and firm locking of the coal storage frame is achieved.

The application discloses a kind of chlorine-free environment-friendly coal transportation and storage antifreeze and preparation method thereof, belong to coal storage and transportation technical field, the preparation method of the chlorine-free environment-friendly coal transportation and storage antifreeze, comprising the following steps: natural oil is heated and stirred, vacuum dewatering is carried out, then amine compound is added to modify reaction, after reaction is finished, cooling is obtained Intermediate product 1, water, thickening agent and metal corrosion inhibitor are added to it again, stir uniformly, obtain the chlorine-free environment-friendly coal transportation and storage antifreeze.I.e. the antifreeze prepared in the application forms weak interface on the surface of coal and carriage or warehouse, is easy to destroy, prevents "freezing vehicle phenomenon";And no chlorine component is used, fundamentally eliminates the corrosion problem caused by chloride ion;It is relatively simple to clean simultaneously because it has certain emulsifying capacity itself;And raw material is more natural oil or recycled oil, with the advantages of green environmental protection.

The invention relates to a dredging device for a coal storage bunker, which comprises an operation platform, the operation platform comprises an operation trolley and an operation mechanism arranged on the operation trolley, the operation mechanism comprises a drill bit assembly and a drill rod connected with the drill bit assembly, the drill rod is constructed to be in a first form with a rigid structure, and the first form is in a second form with a rigid structure; the second form is of a flexible structure; the operation trolley at least comprises a drill rod clamping mechanism, and the drill rod clamping mechanism is configured to enable the drill rod to be kept in a first form and enable the drill rod to be switched between the first form and a second form; the drill rod recovery device comprises a supporting part and a containing part, and the supporting part is constructed to support the drill rod which is of a second form and is of a flexible structure; and the accommodating part is configured to accommodate a plurality of drill rods which are connected in sequence and are in the second form. The dredging device for the coal storage bunker can go deep into the coal bunker to conduct multi-angle and large-range wall-hanging coal dredging operation.

The present invention relates to the technical field of boilers in thermal power plants, in particular to a coal bunker having high stability. The coal bunker comprises: a bearing assembly, which comprises an outer cylinder and a first discharge port formed in an outer wall of the outer cylinder; and a bunker-dividing assembly, which comprises an inner cylinder rotationally arranged in the outer cylinder, two second discharge ports that are formed in and penetrate an outer wall of the inner cylinder and are symmetrically distributed, and a partition plate arranged in the inner cylinder and configured to divide an inner cavity of the inner cylinder into two coal storage cavities. The coal bunker provided in the present invention continues to use the design in the prior art in which a coal bunker is divided into two coal storage cavities by a partition plate; however, unlike the prior art, after coal on one side of the coal bunker is used up, the configured inner cylinder rotates under the impact of its own gravity, so that the whole coal bunker remains in a balanced state, thereby avoiding many disadvantages caused by structural unbalanced loading, and effectively solving the problems present in the prior art.

The invention discloses a boiler pulverized coal uniform distribution device which is characterized in that a material conveying pipe groove is formed in the lower end of the interior of a coal storage tank body, a transmission shaft is arranged in the material conveying pipe groove, transmission blades are fixedly mounted on the surface of the transmission shaft, and a driving motor is fixedly mounted at the left end of the material conveying pipe groove after extending to the outer side of the coal storage tank body; the right end of the material conveying pipe groove extends to the outer side of the coal storage tank body and then is fixedly provided with a quantitative weighing box, the right side of the surface of the material conveying pipe groove is located in the quantitative weighing box and is provided with a material conveying connector, the lower end of the quantitative weighing box is fixedly provided with a weighing partition plate, and the left end of the quantitative weighing box is fixedly provided with a mounting box; according to the device, the defects that when a boiler pulverized coal uniform distribution device works, materials are conveyed in a natural falling mode, the pulverized coal distribution uniformity degree is limited, the pulverized coal conveying efficiency is high, and the pulverized coal conveying efficiency is high can be overcome. And the problem of blockage possibly occurs is solved.

The invention relates to the technical field of microcrystalline plates, in particular to an industrial microcrystalline plate manufactured from graphite tailings and a manufacturing method, the industrial microcrystalline plate is prepared from the following raw material components in percentage by mass: 62-70% of graphite tailings, 6-10% of quartz sand, 6.0-7.0% of sodium carbonate, 5-7% of limestone, 2-2.8% of dolomite, 3-4% of sodium fluosilicate, 1.5-2% of sodium nitrate and 0.1-0.2% of cerium oxide. By analyzing the components of the graphite tailings and adopting a specific formula combination, the graphite tailings are manufactured into the microcrystalline plate with excellent industrial wear resistance and corrosion resistance, so that the problems that the microcrystalline plate manufactured by the existing formula is poor in wear resistance and poor in corrosion resistance are solved. The wear-resistant lining is not applicable to gangue bins, coal storage bunkers, dumper rooms and coal preparation plant equipment in the coal industry.