205 results about "Boiler slag" patented technology

The invention relates to the technical field of industrial detection, and provides a real-time monitoring method and device for slag in a boiler. A plurality of high-temperature-resistant cameras are installed around an observation opening in the bottom of a boiler in an annular array mode, the slag accumulation condition in the boiler is collected in real time through the high-temperature-resistant cameras, and a single-view-angle image is obtained; evaluating the visual field states of the high-temperature-resistant cameras according to the single-visual-angle images, and determining a plurality of to-be-modeled images from the plurality of high-temperature-resistant cameras; and generating slag point cloud data by using the at least one to-be-modeled image, and performing three-dimensional reconstruction on the slag point cloud data to obtain the slag pile volume. According to the method, the slag falling condition of the boiler bottom of the power plant boiler is monitored and recognized in real time, and the problems that the slag falling at the boiler bottom cannot be detected in real time depending on manpower, the detection accuracy is insufficient, the three-dimensional form of the slag falling at the boiler bottom cannot be synthesized by detecting the slag falling at the boiler bottom through sensor equipment, and practicability is poor are solved.

The utility model discloses a boiler deslagging device, which belongs to the technical field of boiler deslagging equipment and comprises a deslagging warehouse and a discharge pipe arranged at the bottom of the deslagging warehouse, a valve device is arranged on the discharge pipe, a transmission chamber and a deslagging chamber are respectively arranged in the deslagging warehouse from top to bottom, and a feed hopper is arranged at the top of one side of the transmission chamber. A residue discharging opening communicated with the residue discharging chamber is formed in the bottom of the other side of the conveying chamber, and an auger rod device matched with the feeding hopper and the residue discharging opening is rotationally connected into the conveying chamber; the deslagging chamber is divided into a first deslagging cavity and a second deslagging cavity through a partition plate, the tops of the first deslagging cavity and the second deslagging cavity are communicated, the number of the discharging pipes is two, and a screening plate is obliquely arranged at the top of the second deslagging cavity through a vibrator. The conveying chamber and the auger rod device are arranged, so that slag in the conveying chamber can be continuously discharged into the slag discharging chamber, the slag discharging chamber is arranged, the screening plate is obliquely arranged on the vibrator, large particles in the slag can be screened, and the two discharging pipes are arranged, so that the requirements of different users on slag treatment can be met.

The utility model belongs to the technical field of thermal power plants, and discloses a thermal power plant boiler slag recovery device which comprises a combustion mechanism used for combusting downward-flowing slag and further comprises a lower box mechanism installed at the bottom of the combustion mechanism and used for converging the slag to be discharged, and a slag discharging mechanism used for spirally pushing the slag to be discharged is installed in the middle of the lower box mechanism. The lower box mechanism is detachably connected with the combustion mechanism; the box discharging mechanism comprises a flow guide box, a conveying channel is arranged at the bottom of the flow guide box, a discharging pipe is arranged at the bottom of one end of the conveying channel, and a lower connecting edge is arranged on the circumference of the top of the flow guide box. According to the boiler slag recovery device for the thermal power plant, the flow guide box with the wide upper part and the narrow lower part is arranged, so that slag convergence is ensured, and the slag recovery effect is improved; through up-and-down disassembly and connection, disassembly, assembly, repair and maintenance are facilitated; and through the arrangement of deslagging at the bottom of the end head, the entering of unreliable air is reduced, and the combustion stability of the boiler is ensured.

The invention belongs to the technical field of resource recycling and building material preparation, and particularly relates to a preparation method for producing concrete by utilizing recycled concrete and boiler bottom slag charge, which comprises the following steps: screening CFB boiler slag, removing large particles and impurities, crushing waste concrete, carrying out multi-stage screening treatment, carrying out primary crushing, and carrying out secondary crushing. Crushing and recycling the large particles as aggregate, and screening again to obtain old mortar residues; cFB boiler slag and old mortar residues are mixed and put into a reaction kettle, and a NaOH solution is added; after the reaction, filtering the residual solution and drying; mixing the powdery active material with the waste concrete aggregate, and adding lime water for wetting treatment; placing the mixed and wetted material in a sealed environment, and continuously introducing carbon dioxide gas; drying the carbonized material at low temperature; adding other materials; stirring by using mechanical stirring equipment; and pouring the mixed concrete slurry into a template, and vibrating by using a vibrator.

The invention provides a boiler slagging risk dynamic assessment and optimization control method based on alkali metal concentration. The method comprises the following steps: acquiring flame temperature, gas phase alkali metal concentration and slag layer thickness data in real time; establishing an ash fusion point-alkali metal concentration mapping database through an ash fusion point calibration experiment to obtain an ash fusion point dynamic attenuation model, and inputting the gas phase alkali metal concentration into the ash fusion point dynamic attenuation model to obtain a dynamic ash fusion point; establishing a slagging online growth model, and inputting the flame temperature, the gas phase alkali metal concentration and the slag layer thickness into the slagging online growth model to obtain the slagging rate; the real-time slagging index is calculated by using the slagging rate, the dynamic ash fusion point and the flame temperature, the boiler slagging tendency is divided according to the numerical value of the real-time slagging index, and the boiler operation is dynamically optimized and controlled by using the boiler slagging tendency grade. According to the method, minute-level advanced early warning of the slagging risk is achieved, and safe and efficient operation of the high-alkali coal unit under the wide-load working condition is guaranteed.

The invention relates to the technical field of catalyst sulfuration in a coal gasification process, and particularly discloses a method for sulfuration of a shift catalyst by adding sulfur into low-sulfur coal, and the method comprises the following steps: fully mixing byproduct sulfur with boiler slag by adopting an internal mixing process to prepare a slag-sulfur mixture; fully and uniformly mixing the slag-sulfur mixture with low-sulfur coal, and feeding the mixture into a coal mill for milling to obtain pulverized coal; the method comprises the following steps: in a coal gasifier, carrying out online vulcanization on a shift catalyst by using pulverized coal, setting slag sampling once every half an hour after adding a slag-sulfur mixture, and monitoring the H2S concentration, the ash water pH value and the sulfate radical concentration in the synthesis gas in real time. According to the method, the by-product sulfur and the boiler slag are subjected to banburying compounding to prepare the slag-sulfur mixture, the slag-sulfur mixture and the low-sulfur coal are uniformly mixed in proportion to prepare powder, and by controlling the outlet temperature of the coal mill, the circulating air volume and the pressurized conveying temperature, the stable combustion of the coal powder and the on-line vulcanization of the shift catalyst are realized.

The invention belongs to the technical field of boiler slag dryers, and particularly relates to an intra-cavity particulate matter cleaning device which comprises a body mechanism, a furnace body and a conveying chain arranged on the furnace body. The gas extraction mechanism is arranged on the furnace body and comprises a first differential pressure assembly, a Venturi tube, a second differential pressure assembly and a third differential pressure assembly, the separation and collection mechanism is arranged on the furnace body and comprises a gas inlet assembly and a particle separation assembly, the separation and collection mechanism is used for collecting slag flying dust in the furnace body, and the particle separation assembly is used for separating particles in the furnace body according to the gas dynamics principle. The high-speed flowing fluid can generate suction force, and the two effects interact to enable the high-speed flowing air to generate negative pressure, so that the negative pressure can be formed in the negative pressure cavity by utilizing the high-speed flowing air, and the collection efficiency of the cyclone separation tank can be enhanced by comprehensively utilizing energy superposition of air flows on the two sides; and slag dust suspended in the slag drying machine can be effectively collected and sampled.

The utility model relates to the field of boiler slag coolers, in particular to a slag inlet sealing device of a boiler slag cooler. The sealing device for the slag inlet of the boiler slag cooler comprises a slag cooler barrel and a slag inlet pipe, an extension pipe is arranged at the slag inlet of the slag cooler barrel, a movable ring is welded to one end of the extension pipe, the slag cooler barrel and the slag inlet are coaxially arranged, the slag inlet pipe is connected to the slag inlet of the slag cooler barrel in an inserted mode, the end of the slag inlet pipe extends into the slag cooler barrel by 300 mm, and the movable ring is welded to one end of the extension pipe. A static ring is welded to one end of the slag inlet pipe, a radial gap of 20-30 mm is kept between the outer wall of the static ring and the inner wall of the extension pipe, and a gap of 50 mm is reserved between the lower portion of the static ring and the inner wall of the extension pipe to serve as a backflow port. According to the slag inlet sealing device of the boiler slag cooler, due to the design of the labyrinth type sealing structure, the slag leakage phenomenon is effectively prevented, stable operation of the slag cooler is guaranteed, the movable ring and the static ring are arranged, a proper gap is reserved, friction between iron and iron is avoided, and abrasion of the sealing ring and the slag sealing disc is remarkably reduced.

The invention belongs to the technical field of sewage treatment, and discloses a waste heat boiler blow-down water recovery device and method.The device comprises a boiler, a slurry pump, a stirring tank and a gas storage tank which are communicated through pipelines; the stirring tank comprises a stirring assembly arranged in the stirring tank and a motor used for driving the stirring assembly; the stirring assembly comprises a first driving rod, the first driving rod is of a hollow structure, the first driving rod is connected with the output end of the motor, and the first driving rod communicates with an air storage tank through a rotating joint; the second driving rod is of a hollow structure, and the second driving rod communicates with the first driving rod; the first stirring rods are of hollow structures, the number of the first stirring rods is two, and the first stirring rods communicate with the first driving rod and the second driving rod correspondingly; the second stirring rod is of a hollow structure, the second stirring rod is arranged in the first stirring rod and communicates with the first stirring rod, and a plurality of spraying holes are formed in the second stirring rod; the problem of insufficient reaction of carbon dioxide and grey water is solved.

The utility model discloses a boiler slag cooling water pipeline which comprises a water inlet pipe and a conveying pipe, one end of the water inlet pipe is communicated with an outlet of a desulfurization condenser, the other end of the water inlet pipe is closed, a plurality of slag removal assemblies are arranged on the two sides of the water inlet pipe respectively, each slag removal assembly comprises a roller, and one end of each roller is communicated with a feeding port convenient for slag to enter the roller. A slag poking opening used for cleaning the interior of the roller is formed in the position, located on the lower portion of the feeding opening, of one end of the roller, the other end of the roller is communicated with a discharging device, a slag outlet is formed in the lower portion of the discharging device, and a medium discharged by the desulfurization condenser enters each group of water inlets through the water inlet pipe and enters the roller. Therefore, the slag is cooled, heat of the slag is fully utilized, the utilization rate of the slag is increased, the cooled slag is discharged into the slag trough through the discharging device, and the slag is convenient to clean.

An embodiment of the present application provides a highly wear-resistant forged chain for a boiler slag discharger and a friction welding and knitting process. The base material is heated and then forged to obtain a forged ring, wherein the cross-section of the forged ring is rectangular; a part of the forged ring is cut along the width direction to obtain semi-rings with twice the number of the part of the forged ring; through a knitting friction welding device, the forged rings and the semi-rings are alternately distributed, and two semi-rings with opposite openings are friction welded into a welded ring, and the forged rings and the welded rings are alternately distributed to form a chain. Compared with the traditional direct bending and forming of a bar stock, the forged ring has higher material strength and a denser internal tissue structure, thereby improving the overall load-bearing capacity and service life of the chain; the cross-sectional shape of the link is rectangular, and at the contact part of adjacent links, the contact part is a surface contact, increasing the contact area and reducing the contact stress, which can effectively slow down the wear of the carburized layer and improve the service life of the chain.

The invention relates to the technical field of slag hole dust prevention, and discloses a dust prevention and removal auxiliary device for a boiler slag hole, the dust prevention and removal auxiliary device comprises a separation cylinder, an inertia dust suppression assembly is arranged in the separation cylinder, the inertia dust suppression assembly comprises a plurality of inertia pre-separation plates connected to the interior of the separation cylinder, and when mixed slag blocks make contact with the inertia pre-separation plates, the inertia pre-separation plates are separated from the separation cylinder. The slag blocks rebound and fall under the inertia effect, meanwhile, dust attached to the surfaces of the slag blocks flies due to impact, due to the fact that the inertia pre-separation plates are spirally arranged, the slag blocks and the dust are guided on the plate faces to form primary separation, then dust airflow forms certain rotational flow under the centrifugal effect of the spiral turbulent flow guide plates, and the slag blocks and the dust are separated. And the second external draught fan continuously absorbs dust through the spiral gap, efficient dust removal is achieved, in addition, the slag blocks are smashed to a certain degree in the collision process of the slag blocks and the inertia pre-separation plate, and the amount of dust attached to the surfaces of the slag blocks is further reduced.

The invention relates to the technical field of hearth coking monitoring, and discloses a monitoring method and device for judging a hearth coking state, equipment and a storage medium, and the monitoring method for judging the hearth coking state comprises the following steps: in a boiler operation combustion state, obtaining basic data of six heating surfaces; calculating operation heat transfer coefficients of the six heating surfaces; initial data of the boiler in a healthy state are collected, and an optimal heat transfer coefficient prediction model is trained; boiler operation parameters in the boiler operation combustion state are obtained, and the optimal heat transfer coefficient in the boiler operation combustion state is obtained; and comparing the operation heat transfer coefficient with the optimal heat transfer coefficient to determine whether the hearth of the boiler is coked or not. According to the method, the whole boiler is divided into six heating surfaces, whether adjustment or optimization such as coking or soot blowing needs to be carried out or not is judged through the optimal heat transfer coefficient prediction model according to the six coking surface heat transfer coefficients, boiler shutdown is not needed, the coking condition of the boiler is found in time, power generation losses are reduced, and the operation health state and the operation efficiency of a combustion hearth are improved.

A hydraulic slag pushing device for a slag well of a coal-fired boiler comprises a slag pushing pipe which is horizontally or obliquely installed on the slag well and provided with a pipe body flange plate and a bottom hole, a high-temperature-resistant slag pushing head which corresponds to the horizontal or downward oblique installation of the slag pushing pipe and is installed in the slag pushing pipe, and a rotating riding wheel installed at the bottom of the slag pushing pipe. The flange cover is connected to the pipe body flange plate through a fastening bolt, the hydraulic cylinder body is used for connecting the cylinder body flange plate to the flange cover through a fastening bolt, and the hydraulic piston rod is hinged to the high-temperature-resistant slag pushing head. The device is large in thrust, reliable in connection, stable in operation, high in production efficiency, time-saving and labor-saving, low in labor intensity of operators, good in slag dredging effect, safe and reliable in operation and convenient to mount and dismount, and effectively solves the problems of slag accumulation, slag fluffing and slag blockage in a slag well. The deslagging device can be widely applied to the deslagging process of the coal-fired boiler slag well.

The utility model belongs to the field of thermoelectricity, and particularly relates to a thermal power plant boiler slag discharging structure which comprises a crusher, a feeding end seat is arranged at the top of the crusher, and a discharging end seat is arranged at the bottom of the crusher. The crushing mechanism comprises a driving device arranged on the crusher, the output end of the driving device is connected to a transmission device, the output end of the transmission device is connected with a crushing shaft penetrating into an inner cavity of the crusher, and a protruding crushing part is arranged on the outer wall of the crushing shaft. After the slag is discharged out of the boiler, due to the fact that heat of the slag is not fully utilized, the blocky slag is crushed and treated into a granular structure facilitating heat release through the crushing mechanism, on one hand, the blocky slag can be prevented from blocking a discharging channel, and on the other hand, residual heat can be conveniently collected; and the distribution mechanism can assist in spreading the granular slag on the slope bench, and can quickly collect residual heat in cooperation with a subsequent air inducing device, so that heat waste is prevented.

The invention provides an automatic boiler slag cleaning device and a using method. The automatic boiler slag cleaning device comprises a box body and a driving mechanism. A rotating shaft is rotationally connected in the box body through a bearing, and a mounting plate with a scraper assembly and a grinding mechanism with a grinding roller are fixedly mounted on the rotating shaft. The device is characterized in that a scraper in the scraper assembly can be driven by a driving part to vertically move, so that the device has three key working positions: firstly, the scraper is lowered to be in contact with slag and rotates along with a rotating shaft to flatten accumulated slag, and a uniform condition is provided for subsequent grinding; secondly, the slag is lifted to be separated from the slag, so that interference with the grinding roller is thoroughly avoided, and the grinding process is smooth; and thirdly, the device descends to be tightly attached to the bottom wall of the box body, so that crushed slag and residues on the inner wall are thoroughly scraped off. Through intelligent adjustment of the height of the scraper blade, automatic leveling, interference-free grinding and efficient and thorough cleaning of slag are integrally achieved, manual intervention is not needed in the whole process, the cleaning efficiency and quality are remarkably improved, and the operation intensity and the safety risk are effectively reduced.

The present invention belongs to the technical field of power plant equipment, and particularly relates to a slag poking device for a power plant boiler slag dropping pipe, which includes a slag cleaning head installed inside the slag dropping pipe. The lower end of the slag cleaning head is connected with a slag poking rod. A bottom plate is fixedly connected to the lower end of the slag dropping pipe. The slag poking rod passes downward through the bottom plate and is connected with a first driving mechanism and a second driving mechanism, and is driven to rotate by the first driving mechanism and driven to move up and down by the second driving mechanism. In the present invention, the slag poking rod is driven to rotate by the first driving mechanism and driven to move up and down by the second driving mechanism, and the first driving mechanism and the second driving mechanism do not affect each other. The rotation and movement of the slag poking rod can be carried out simultaneously. By the above method, the existing manual slag poking is replaced, ensuring the smooth progress of the slag poking work, improving the slag poking efficiency, and avoiding the danger brought by manual slag poking.

The invention discloses a boiler slag poking method and device, electronic equipment and a storage medium, and relates to the technical field of boiler slag discharging. And generating a slag poking instruction under the condition that the operation condition of the boiler slag discharge port is blockage. And controlling an automatic slag poking valve to automatically poke slag according to the slag poking instruction. Compared with the prior art, according to the embodiment of the invention, the boiler operation efficiency is effectively improved and the maintenance cost is reduced by acquiring the operation condition of the boiler slag discharge port in real time, generating the slag poking instruction during blockage and controlling the automatic slag poking valve to poke the slag. According to the scheme, smooth deslagging is ensured, the problems of boiler efficiency reduction, energy consumption increase and the like caused by blockage of the deslagging opening are solved, meanwhile, manual intervention is reduced, safety risks are reduced, production continuity and stability are guaranteed, and remarkable economic benefits and safety guarantee are brought to enterprises.

The invention relates to the field of boiler systems, and provides an intelligent anti-clamping slag conveyor for a circulating fluidized bed boiler, the intelligent anti-clamping slag conveyor comprises a boiler slag feeding system and a bucket elevator, the bucket elevator is fixedly connected with a feeding box, the bucket elevator is provided with a machine cavity, the inner wall of the machine cavity is connected with a conveying roller assembly, and the feeding box is provided with a feeding channel and a transmission cavity; the transmission cavity is communicated with the machine cavity, the inner wall of the transmission cavity is in sliding connection with a material receiving disc, a material receiving cavity is formed in the material receiving disc, the material receiving disc is in linkage with the conveying roller assembly, and the boiler slag feeding system is used for conveying slag generated by a boiler to the feeding box. The probability that slag penetrates through a gap between the inner wall of the bucket elevator and the hopper and then falls to the inner bottom wall of the bucket elevator can be greatly reduced, and the clamping stagnation probability of a conveying roller assembly in the bucket elevator is greatly reduced.

The invention comprises a method of sequestering or otherwise mineralizing carbon dioxide. The method comprises delivering a natural or man-made carbonatable mineral from one or more of hyaloclastite, volcanic glass, volcanic ash, fly ash, bottom ash, boiler slag, iron slag, steel slag, a zeolite, or any other mineral with a sufficient quantity of carbonatable elements and / or a high porosity structure, such as zeolite, to a mill capable of fracturing and reducing the particle size of the carbonatable mineral and / or zeolite; processing the carbonatable mineral and / or zeolite in the mill so that the processed carbonatable mineral and / or zeolite has a volume-based mean particle size of less than or equal to 100 μm; and exposing the carbonatable mineral and / or zeolite to carbon dioxide in gaseous, liquid or solid form during or after the particle reduction process.

The utility model relates to the technical field of boiler coal cinder cleaning, and discloses a boiler deposited coal cinder cleaning device which comprises a furnace body, a coal cinder cleaning device and a coal cinder cleaning device. The flue is arranged on one side of the hearth in the furnace body, and the bottom of the hearth is communicated with the bottom of the flue; the air passages are arranged at the bottom of the hearth in parallel, and exhaust ports are formed in the upper parts of the air passages, so that the following technical effects can be realized: the air passages are arranged at the bottom of the hearth and the bottom of the flue, and the coal slag is crushed and blown and crushed by utilizing the alternate cooling and heating effect of cold air and high-temperature coal slag, so that efficient cleaning is realized; the partition plate isolates the air channel from the hearth and the flue, it is guaranteed that cold air is kept at low temperature, and the coal cinder fragmentation effect is further optimized. The exhaust hood is designed to accurately control the flow direction of cold air, so that the cold air acts on the coal cinder in a concentrated manner, and the cleaning efficiency is improved.

The utility model relates to the technical field of boilers, in particular to a boiler waste residue centralized discharging device which comprises an installation unit, a boiler seat, a base arranged on the boiler seat and a lower fire grate arranged on the boiler seat. The rotating unit comprises a pressing assembly arranged on the outer side of the base, an extrusion assembly arranged on the pressing assembly, a reset assembly arranged in the base and a transmission assembly arranged on the base; and the deslagging unit comprises a pushing assembly arranged in the boiler seat, a deslagging assembly arranged in the boiler seat and a flow guide assembly arranged in the boiler seat. The boiler waste residue centralized discharging device has the advantages that through the rotating unit and the residue discharging unit, the effect that waste residues at any corner in a boiler can be collected and treated without using any tool can be achieved, the cleaning efficiency is improved, and the labor cost can be reduced.

The application discloses a novel air-cooled dry-type slag discharging system and a slag discharging method, which comprise, from top to bottom, a boiler, a slag well and a dry slag machine, further comprise a wind control system and a cooling ring pipe, one end of the wind control system is connected with the dry slag machine and the cooling ring pipe, and the other end is connected with the slag well; a plurality of sets of crushing devices and sealing shutoff doors are arranged in the space between the slag well and the dry slag machine, a partition cavity is formed between the crushing devices and the sealing shutoff doors, the air inlet channel between the dry slag machine and the boiler is blocked, and the air volume is adjusted only through the wind control system. The sealing shutoff door device is arranged between the furnace bottom slag discharging device and the dry slag machine equipment, a new intermediate partition cavity can be formed between the sealing shutoff door device and the extrusion head after the sealing shutoff door device is closed, small slag blocks after pre-crushing are stored in the new intermediate partition cavity, the sealing shutoff door blocks the air inlet channel between the dry slag machine and the furnace, the air inlet volume of the furnace is adjusted only through the wind control system, the air inlet volume is accurately adjusted, and the combustion efficiency of the boiler is improved.

The utility model provides a boiler slag extractor with a water cooling function, which comprises a support frame, a slag extraction cylinder, a crushing cylinder, a guide pipe, a water cooling mechanism and a water tank, the slag extraction cylinder is fixed at the upper end of the support frame, and the upper end of the slag extraction cylinder is connected with a boiler slag outlet; a smashing cylinder is fixed to the lower side face of the other end of the slag pumping cylinder, a guide pipe is fixed to the outer side face of the lower end of the smashing cylinder, and the lower end of the guide pipe is fixed to the upper side face of the water cooling mechanism; the water cooling mechanism is fixed on the ground, the upper side face of the water cooling mechanism is connected with the water tank, and the outer side face of the water tank is fixed with the supporting frame. Due to the arrangement of the crushing cylinder and the water cooling mechanism, slag can be crushed during use so as to facilitate follow-up transfer of the slag, and meanwhile, the slag can be spread before the slag is subjected to water cooling treatment, so that the slag cooling effect is improved.

The utility model relates to the technical field of boiler slag removal, and discloses a boiler slag removal filter screen convenient to install, through the arrangement of an installation mechanism and an auxiliary mechanism, the installation mechanism is used for fixing the filter screen, and the auxiliary mechanism is used for fixing the installation mechanism, the problem that in an existing boiler slag removal system, the filter screen is difficult to install is solved. A filter screen device capable of achieving rapid installation and disassembly is lacked, a traditional filter screen fixing mode is usually complex, much time and manpower are needed for installation and disassembly, the working efficiency is reduced, the maintenance cost is increased, and due to the fact that the filter screen needs to be frequently cleaned or replaced to guarantee efficient operation of a boiler system, the service life of the boiler system is prolonged. The problems that a traditional filter screen is inconvenient to install, so that the efficiency of the whole deslagging process is directly influenced by the inconvenience, specifically, the installation of the traditional filter screen often involves a plurality of steps, and in addition, the technical requirements of operators and the possibility of errors are increased due to the complex installation process are solved.

This utility model provides a permanent magnet heating waste heat utilization system for fluidized bed thermal power plants. The system uses the heat from the permanent magnet speed controller of the blower to heat the demineralized water, which then undergoes secondary heating in the boiler slag cooler before entering the deaerator. This fully utilizes various types of waste heat for comprehensive waste heat utilization. A regulating valve and flow meter are installed at the inlet of the primary blower permanent magnet speed controller; a regulating valve and flow meter are also installed at the inlet of the secondary blower permanent magnet speed controller; a regulating valve and flow meter are installed at the inlet of the induced draft fan permanent magnet speed controller; the outlets of the primary, secondary, and induced draft fan permanent magnet speed controllers are all connected to the demineralized water tank; thermometers are installed at the outlets of the primary, secondary, and induced draft fan permanent magnet speed controllers; the demineralized water tank is connected to the inlet of the boiler slag cooler, and the outlet of the boiler slag cooler is connected to the deaerator.

The invention relates to the technical field of boiler slag removal, in particular to a fine slag discharging mechanism and a dry-type slag extractor, the fine slag discharging mechanism comprises a mounting component, a slag discharging component and a slag removing component, the slag discharging component and the slag removing component are mounted on the outer side of the mounting component in a matched mode, and the slag discharging component and the slag removing component are used for automatically discharging slag; through mutual cooperation of the inclined baffle and the blocking assembly, when too much fine slag is accumulated, the bottom plate can automatically rotate to unload the fine slag, and after the fine slag is unloaded, the bottom plate automatically resets, so that full-automatic unloading and resetting of the whole process are completed, manual intervention is not needed, and the production efficiency is improved. And as the accumulation condition of the fine slag in the fine slag discharge mechanism cannot be observed by human eyes, the slag discharge opportunity is difficult to grasp, and the slag can be automatically discharged when excessive slag is accumulated through the device without manual observation, so that the burden of workers is relieved.

The invention discloses a slag extrusion device of a boiler slag removal system, and relates to the technical field of boiler slag removal equipment, the slag extrusion device comprises a slag discharge unit, the slag discharge unit comprises a steel belt slag discharge machine, a slag outlet formed in the steel belt slag discharge machine, and a slag hopper assembly arranged on the slag discharge machine; and the slag extruding unit comprises a slag extruding assembly arranged on the slag hopper assembly, a positioning assembly arranged on the slag extruding assembly and a fixing assembly arranged on the slag extruding assembly and connected with the positioning assembly. According to the slag extrusion device of the boiler slag removal system, the slag extrusion unit is arranged, the slag extrusion assembly on the slag extrusion unit is utilized, and the end, used for extruding coal slag, of the slag extrusion plate is arranged to be the sawtooth-cone-shaped extrusion head, so that the contact area between the slag extrusion device and slag charge is increased, the extrusion effect is improved, meanwhile, the sawtooth-cone-shaped structure can effectively crush and disperse large cakes in the slag charge, and the slag removal efficiency is improved. And therefore, the large slag blocks are easier to convey and treat, and the influence on the safe operation of the boiler due to excessive accumulation of the large slag blocks is prevented.

The invention discloses a biomass pyrolysis and fire coal coupling utilization system and method.A raw material outlet of a biomass bin is connected to a raw material inlet of a pyrolysis reactor, a pyrolysis gas outlet of the pyrolysis reactor is connected with a raw material gas inlet of a high-temperature filter, and a purified gas outlet of the high-temperature filter is connected to a coal-fired boiler; a steam outlet of the coal-fired boiler is connected to the steam power generation system and further connected with a steam reverse blowing opening of the high-temperature filter, a flue gas inlet of the pyrolysis reactor is connected with a first flue gas outlet of the coal-fired boiler, and a flue gas outlet of the pyrolysis reactor and a second flue gas outlet of the coal-fired boiler are connected to the flue gas purification system. A steam outlet of the coal-fired boiler is connected to the steam power generation system, a steam blowback opening of the high-temperature filter and condensed water generated by the steam power generation system are connected to the coal-fired boiler. The biomass medium-temperature pyrolysis can effectively prevent volatile components such as alkali metal and chlorine from escaping, and boiler slagging corrosion is avoided.

The utility model discloses a dust removal device of boiler slag removal equipment, which comprises a slag cooler set, a plurality of slag coolers, a plurality of dust removal devices, a plurality of dust removal devices, a plurality of dust removal devices, a dust removal device and a dust removal device, and is characterized in that the slag cooler set is provided with a plurality of slag coolers; the outlet of each slag cooler is communicated to the inlet of the tail part of the boiler flue, and the pressure of the tail part of the boiler flue is negative pressure; an inlet of the cloth bag dust removal device is communicated with the tail part of the boiler flue, and an outlet of the cloth bag dust removal device is communicated to a chimney and is used for discharging flue gas. According to the technical scheme provided by the embodiment of the invention, the slag cooler unit is communicated to the tail part of the boiler flue, and the tail part of the boiler flue is in the negative pressure state, so that the negative pressure state is formed at the outlet of the slag cooler, and dust enters the boiler flue in the negative pressure state and then enters the bag-type dust removal device for dust removal treatment; the device is simple in structure and relatively good in use effect, and has a good dust removal effect.