97 results about "Cinder" patented technology

The present application belongs to the technical field of biomass boiler, in particular to a circulating fluidized bed boiler tail flue fly ash conveying system, which comprises a bin pump and a fly ash conveying pipeline, the bin pump is arranged at the bottom of the discharge pipe of the tail flue ash bucket; a flow zone is arranged at the middle part of the discharge pipe, a flow bin is arranged inside the flow zone, and the flow bin is communicated with the bin pump through a mixing pipe arranged at the middle part; the accumulated ash and the airflow are mixed in advance to form a gas-solid mixture which is sent into the bin pump and flows to the ash storage, so that the flowability of the ash is improved, the short-time concentrated release of the ash is converted into the continuous release of the gas-solid mixture, and the load on the bin pump is reduced; and the process of forming the gas-solid mixture from the accumulated ash expands the gap between the cinder, so that the cinder is diffused, the excessive concentration of the cinder through the bin pump is avoided, the blockage of the upper opening or the valve of the bin pump is avoided, the failure rate of the bin pump is reduced, and the smooth transfer of the accumulated ash of the boiler tail flue is ensured.

The utility model belongs to the field of packing material processing devices, and particularly relates to a packing material processing device for mine construction, which comprises a device main body, the upper surface of the device main body is fixedly connected with a material distributing device, the material distributing device comprises a cover plate, the cover plate is arranged on the upper surface of the device main body, and the material distributing device is arranged on the cover plate. A conical spiral groove is formed in the inner wall of a feeding port of the cover plate, a dustproof cover is fixedly connected to the upper surface of the feeding port of the cover plate, and the bottom face of the dustproof cover is fixedly connected with one end of a connecting rod. According to the packing material treatment device for mine construction, materials fall into the areas of the material distribution rings in a relatively uniform state, and then the materials are further subdivided by the material distribution rings with different sizes in sequence, so that coal cinder particles are in a concentric circle shape and are discharged on the upper surface of a main material, and when the material distribution rings are impacted by relatively large particles or non-uniform materials, the coal cinder particles are separated from the main material. And the spring can make the material distributing ring vibrate rapidly through the elasticity of the spring, and the material distributing speed of the device is increased.

The utility model relates to the technical field of biomass boilers, and discloses a biomass boiler capable of realizing heating, cooking and kang heating, which comprises a combustion table and a ventilation table, a chimney is fixedly mounted on the ventilation table, and a combustion mechanism is arranged on the combustion table; the upper sealing plate and the lower sealing plate are controlled to add biomass raw materials and treat ash, during combustion, the heat insulation plates are selectively installed on the two sides of the combustion table, heat dissipation can be rapidly controlled, meanwhile, the ash groove is installed between the combustion table and the air exchange table, and the ash groove can guide heat transmission and can also guide heat exchange. By installing a wet vessel and a dry vessel, after a valve is controlled to inject water into the wet vessel, water vapor is generated through heating and enters a room through a temperature control pipe, after the dry vessel is heated, heat enters the room through the temperature control pipe, the indoor temperature and humidity can be flexibly changed, and practicability is high.

The utility model provides a device for adjusting the proportion of coal-fired furnace slag in cement, and relates to the field of cement production.The device comprises a supporting column, an adjusting assembly and a rolling assembly, the adjusting assembly used for adjusting the proportion of the coal-fired furnace slag is arranged at the top end of the supporting column, and the rolling assembly used for rolling the coal-fired furnace slag for fine crushing is arranged above the adjusting assembly; the device can turn over and grind the coal-fired slag, improves the mixing and proportioning efficiency, can sense and adjust the feeding amount of the coal-fired slag, and is convenient to use.

The invention is suitable for the technical field of speed reducer shell casting, and provides a pouring and overflow discharging system for new energy automobile speed reducer shell casting, the pouring and overflow discharging system comprises a feeding assembly, a product cavity is formed in one side of the feeding assembly, and a cinder ladle assembly is arranged on the side, away from the feeding assembly, of the product cavity; an exhaust assembly is arranged on the side, away from the product cavity, of the cinder ladle assembly, the feeding assembly comprises a pouring gate, a gate runner is arranged on one side of the pouring gate, the gate runner is in an arc shape, and the gate runner forms a semi-surrounding type pouring channel along the outer side of the product cavity; the cinder ladle assembly comprises a first overflow channel, one end of the first overflow channel is communicated with a first cinder ladle structure, a second overflow channel is arranged on one side of the first overflow channel, and the whole pouring overflow discharging system cooperatively achieves uniform feeding, cinder ladle impurity removal and efficient exhaust. And the defect rate of shrinkage cavities and the like during casting of the new energy automobile speed reducer shell can be remarkably reduced, and the yield is increased.

The invention discloses a concentrated solution for a hydraulic support based on a coal-based Fischer-Tropsch synthesis technology and a preparation method of the concentrated solution, and particularly relates to the technical field of hydraulic support concentrated solutions, the concentrated solution comprises the following components: 30-45% of a coal-based Fischer-Tropsch synthesis oil derivative lubricant, 5-12% of a gasified ash modified additive, 8-15% of a composite antirust agent, 10-18% of a nonionic emulsifier, 3-8% of a freeze-thaw stabilizer, and the balance of water. And the balance water. The concentrated solution provided by the invention takes the Fischer-Tropsch synthetic oil derivative as a core lubricating component, and is combined with the gasified ash modified additive and the like, so that the problem of soap precipitation blockage caused by high-hardness mine water is effectively solved, and the concentrated solution has good freeze-thaw resistance and environmental protection property, meets the current environmental protection standard, and is particularly suitable for a highly-mineralized mining area environment in Shanxi.

The invention belongs to the technical field of industrial furnace combustion, and particularly relates to a protective device of a multi-purpose furnace combustor, which comprises an ion generator, a guide spray pipe, a torque part and a scraping part, wherein the left end of the guide spray pipe is inserted into the axis of an inner cavity of the ion generator through an insertion port; the torque component sleeves the right side of the outer surface of the ion generator and drives the scraping component to rotate around the guide spray pipe; the torque member includes a guide base plate, a torque motor, and a guide outer rod. According to the device, the scraping part can be driven to the corresponding point position according to the position where coal cinder is attached to the outer surface of the guide spray pipe, then targeted scraping work is conducted, and therefore coal cinder cleaning work on the outer surface of the guide spray pipe is achieved; and the parts except the coal cinder cannot be rubbed and scraped, so that the whole outer part of the guide spray pipe cannot be seriously abraded, meanwhile, the scraping range of the conical surface scraping plate is narrowed, and the cleaning efficiency of the device is improved.

The utility model discloses a fuel waste recovery structure for heat energy engineering, which relates to the technical field of fuel waste recovery for heat energy engineering, and comprises a workbench, support columns are circularly arrayed at the bottom of the workbench, a U-shaped frame is fixedly arranged at the top of the workbench, and a transverse moving groove is formed in the front side surface of the U-shaped frame. A transferring air cylinder is fixedly arranged on the edge of the side face of the U-shaped frame, a storage hopper is fixedly communicated with the side, close to the transferring air cylinder, of the top of the U-shaped frame, and a stamping air cylinder is vertically and fixedly arranged on the side face, on the storage hopper, of the top of the U-shaped frame. The top of the U-shaped frame is sequentially provided with the storage hopper and the compression air cylinder with the compression function, the transfer assembly is arranged at the bottom of the U-shaped frame, the transfer assembly can transfer fuel waste residues temporarily stored in the storage hopper to the compression position, slag is compressed into cakes, and then the slag is transferred. The transportation and storage cost is reduced to a certain extent, and the efficiency is improved.

The application discloses a kind of high-efficiency iron-removing equipment of slag raw material integrated type, and the continuous treatment of slag is realized by matching installation two-stage crushing assembly, multistage gravity separation assembly, two groups of magnetic separation components.Double-stage crushing assembly carries out coarse and fine crushing and screening to slag;Multistage gravity separation assembly separates metal iron and cinder from the crushed slag;Two groups of magnetic separation components are used for primary and secondary magnetic separation respectively, to further separate metal iron in slag.Setting also has transmission component, for accepting separated metal iron and conveying outward.Corresponding continuous iron-removing process includes: crushing treatment, primary magnetic separation, gravity separation treatment, secondary magnetic separation treatment.The whole equipment implements mechanization, automation, closed operation, and has high processing efficiency and good environmental protection effect.It can greatly reduce processing cost, improve the utilization value of subsequent cinder, and bring significant economic and social benefits.

The utility model discloses a blast furnace deslagging structure, which belongs to the technical field of steelmaking blast furnaces and comprises a workshop, a molten iron diversion trench, a blast furnace, a high-temperature-resistant gate, a slag outlet A, a slag outlet B and a chain plate conveying belt, the blast furnace is arranged at the top of the workshop in a matched manner, the slag outlet A is mounted on the other side of the blast furnace through the high-temperature-resistant gate, and the slag outlet B is arranged at one end of the slag outlet A; a chain plate conveying belt and a molten iron flow guide groove are installed on the two sides of the interior of the workshop correspondingly, and the slag outlet A extends into the molten iron flow guide groove. According to the utility model, the material guide mechanism is arranged, and the anti-splashing cover, the flow guide screen plate, the movable cavity, the baffle plate and the winch are matched for use, so that blockage in the iron slag discharging process can be prevented through the inclined flow guide screen plate, and each component is matched with the slag outlet A and the slag outlet B for use; molten iron and iron slag can be separated and conveyed and guided through an independent channel, and therefore the iron slag can be further prevented from blocking the slag outlet A.

The utility model discloses a gasification furnace cone bottom structure relates to gasification furnace equipment technical field, including gasification furnace body, the bottom of gasification furnace body is conical bottom surface structure, the inside of gasification furnace body is paved with cone bottom brick, the inside wall of cone bottom brick is paved with cinder hole brick, and the cinder hole brick includes first cinder hole brick, second cinder hole brick and third cinder hole brick that are sequentially attached and laid from top to bottom, the distance of the inner wall surface of first cinder hole brick to gasification furnace body center axis is greater than the distance of second cinder hole brick inner wall surface to gasification furnace body center axis, and the inner wall surface of second cinder hole brick and third cinder hole brick forms the inclined plane of gradually expanding from top to bottom, by reducing the size of cinder hole, cinder hole brick can bear longer time's corrosion under the same condition, and the layered setting of first cinder hole brick, second cinder hole brick and third cinder hole brick makes the formation of ladder type structure to the cinder hole, can more effectively disperse the impact force of slag flow to cinder hole brick, reduces the wear and tear of single cinder hole brick, prolongs the service life of cinder hole brick.

The utility model relates to alkali removal device technical field, concretely is alkali removal device of vacuum box of alkali filter, including vacuum box, still include the alkali removal device who sets up in the vacuum box, the alkali removal device includes scraper and sets up a plurality of acid liquid spray pipe on the scraper, the acid liquid spray pipe is used to spray acid liquid to the vacuum box inner wall, the scraper is used for scraping the crystallization alkali after being neutralized in the vacuum box inner wall by acid liquid, the vacuum box one side bottom is equipped with the cinder outlet, the cinder outlet outside is equipped with the apron through the bolt fixed, the alkali removal device still includes the support frame, the support frame middle part is hollow, is used for providing the passageway for the alkali cake in the vacuum box, the utility model discloses through setting booster pump pumps out the acid liquid in the support frame, and sprays from the acid liquid spray pipe to the crystallization alkali on the vacuum box inner wall, and the neutralization reaction happens with the crystallization alkali, makes it soften, until forms the solution, the electric cylinder pushes the alkali removal device and moves in the vacuum box, and the scraper will be neutralized after the crystallization alkali and scrape from the vacuum box inner wall.

The application discloses a method for reducing slag shell on a ladle opening with a cover and belongs to the technical field of metallurgy. The method comprises the following steps: dividing a cross section of the ladle opening with the cover into four equal parts, marking 3 o'clock, 6 o'clock, 9 o'clock and 12 o'clock positions according to a clock scale, setting a circumference section from 3 o'clock to 6 o'clock to 9 o'clock as a backward steel / slag section, adding rice hull insulation agent to the center of the ladle when calcium wire feeding is completed and a soft blowing stage is entered, spreading the carbonized rice hull evenly and rapidly under the soft blowing state, starting the ladle car in the direction of the line connecting 6 o'clock and 12 o'clock before and after the end of the soft blowing, making the liquid surface of 6 o'clock and 12 o'clock higher or lower than the normal level of the liquid surface by using the swing force, and promoting the slag shell on the circumference section from 3 o'clock to 12 o'clock to 9 o'clock to fall off. The above method can reduce the number of slag shells on the ladle opening with the cover by reasonably utilizing the swing force of the ladle car, using common materials and distributing the carbonized rice hull at specific positions, and can greatly reduce the number of slag shells on the non-backward steel and slag positions.

The utility model discloses a waste incineration waste heat boiler flue gas dust removal device which comprises a dust removal pipeline, one end of the dust removal pipeline is communicated with a smoke exhaust pipeline of a waste heat boiler, a dust collecting pipe row is obliquely arranged in the dust removal pipeline, a dust collecting hopper is arranged at the bottom of the dust collecting pipe row, and a cinder valve is arranged at the outlet end of the dust collecting hopper. The dust discharging valve is connected with a dust discharging pipe and is used for discharging dust collected in the dust collecting hopper; a shock wave soot blower is arranged at the top of the dust capturing pipe row and is used for blowing dust on the dust capturing pipe row into the dust collecting hopper. The dust collecting pipe row is obliquely arranged in the dust removal pipeline, so that dust is collected, the content of fly ash in flue gas is reduced, the rear-end flue gas treatment cost is reduced, and the service life of rear-end flue gas equipment is prolonged.

The utility model belongs to the technical field of ash conveying equipment, and provides an incinerator fire grate slag conveying device with an automatic monitoring function, which comprises a pneumatic conveying assembly, a plurality of feeding assemblies, a plurality of connecting assemblies, a plurality of pneumatic ash discharging valves, a plurality of ash discharging hoppers and a plurality of material level sensors, the top of the conveying pipe is connected with a connecting piece; the feeding assembly is connected with the pneumatic cinder valve through the connecting assembly; according to the pneumatic cindervalve, the first sealing gasket in the first groove, the second sealing gasket in the second groove, the sealing ring in the limiting groove and the threaded connection structure are matched with one another, so that multiple sealing can be carried out on the pneumatic cindervalve, the feeding pipe and the lower ash hopper, and the pneumatic cindervalve, the feeding pipe and the lower ash hopper can be rapidly connected together in a high-sealing mode; and operation is convenient and fast, the assembling efficiency of the device is improved, and the ash leakage condition cannot occur in the ash conveying process.

The invention discloses a slag removal device which comprises a mounting component, a slag removal component, a slag removal component, a slag removal component and a slag removal component. And the screening assembly is arranged on the inner wall of the mounting assembly and arranged at a preset inclination angle, and the screening assembly comprises a connecting disc and a fixing rod fixed to one side of the connecting disc and is used for conducting thickness grading on the coal cinder entering the mounting assembly. And through cooperation of the obliquely-arranged fixing rods and the staggered extrusion rods, large slag blocks are effectively prevented from bridging and blocking in the screening process, the problem that a traditional slag remover needs to be frequently shut down for cleaning is solved, and the slag removal continuity and efficiency are remarkably improved.

The invention discloses a method for achieving closed-loop automatic spraying control in a high-temperature cinder humidifying process. The method comprises the following steps that S1, torque feedback of a humidifying roller frequency converter is detected in real time; s2, calculating a total basic value of real-time cinder in the roller according to torque feedback; s3, calculating a slag total amount correction value in real time according to the rotating speed of the roller and the real-time spray water flow data, and calculating a true value according to the basic value and the correction value; s4, according to the calculated real-time cinder amount, the basic spraying water flow needed by spraying is calculated; s5, calculating a spray water flow correction value according to dynamic data such as the temperature of the rear section of the roller and the real-time cinder amount change trend, and giving a water spray set value according to the basic value and the correction value; and S6, according to the water spraying set value, coordinated distribution and automatic control of a plurality of spraying water loops are achieved, and closed-loop control of automatic spraying is completed. The method has the beneficial effects that manual observation feedback is replaced by indirect parameter measurement such as roller electrode moment feedback, so that automatic control becomes possible.

The utility model provides an inserting plate type air-locking cinder valve device, which is applied to the technical field of dust removal equipment and is characterized by comprising a mounting frame, a dust guide hopper fixedly arranged on the mounting frame and a dust box arranged below the dust guide hopper and assembled on the mounting frame in a drawing manner, an insertion plate is assembled on the mounting frame between the ash guide hopper and the ash box in a drawing manner; an ash guide hole is formed in the insertion plate; the dust guide device has the technical effects that the dust guide hole and the dust guide opening of the dust guide hopper are arranged oppositely or in a staggered manner by drawing the insertion plate, so that the dust guide opening is opened or closed, and dust can smoothly fall into the dust box through the dust guide hopper when the dust box is positioned below the dust guide hopper; when the dust box is pulled out, the dust guide opening is in a closed state, so that dust does not fall on the ground, and secondary pollution is avoided.

The utility model relates to the technical field of cinder valves, and discloses a double-layer heavy punch double-sealing flap cinder valve which comprises a cinder chamber, the cinder chamber is a rectangular box with a hollow cavity, the top and the bottom of the cinder chamber are in an open state, and the same cinder chamber is arranged at the bottom of the cinder chamber; the turning plate is a rectangular plate, the turning plate is rotationally connected to the top opening of each dust discharging chamber, and a pendulum bob is arranged on the wall surface of one side of each dust discharging chamber; the abutting structures are arranged in the cavities of the dust discharging chambers and used for making contact with the turning plates, each abutting structure comprises a front box, a rotating shaft, an elastic box, a vibration rod, a limiting rail and a sealing plate, the front boxes are fixedly connected to the tops of the front wall faces of the dust discharging chambers, the rotating shafts are rotationally connected into the cavities of the front boxes, the elastic boxes are fixedly connected to the bottoms of the rear wall faces of the penetrating grooves, and the vibration rods are arranged on the rotating shafts. The vibration rod is movably connected to the rear wall face of each bullet box, the limiting rail is fixedly connected to the bottom of each turning plate, and the sealing plate is movably connected to the wall face of each limiting rail.

The invention belongs to the technical field of water treatment materials, particularly discloses a core-shell structure composite hydrogel adsorbent and a preparation method thereof, and aims to solve the technical problems of secondary pollution and poor material stability caused by easy dissolution of core metal ions in the existing active cross-linked hydrogel adsorbent. According to the technical scheme, the core-shell integrated structure is formed by taking cobalt-alginate gel loaded with coal cinder, cortex moutan charcoal and zeolite synergistic adsorption components as a functional core and taking genipin cross-linked sodium alginate-gelatin as a protective shell. According to the structure, through a synergistic mechanism of pre-fixation of an inner core and strong barrier of a shell, dissolution of cobalt ions is remarkably inhibited while organic dyes, antibiotics, heavy metal ions and micro-plastic pollutants in a water body are effectively removed, so that synchronous improvement of the adsorption performance and the application safety of the material is realized.

The application provides a high-performance light aggregate for light super high performance concrete and a preparation method thereof, the aggregate comprises the following components in percentage by weight: copper tailing slag 30-40%, lithium slag 25-35%, red mud 10-20%, pyrite cinder 5-15%, titanium ore slag 3-8%, calcium carbonate 1-3%, and magnesium carbonate 1-3%. The application further discloses a preparation method of the high-performance light aggregate for light super high performance concrete. The high-performance light aggregate is prepared by drying, uniformly mixing, grinding, granulating, aging, balling and high-temperature firing of industrial solid wastes, such as copper tailing slag, lithium slag, red mud, pyrite cinder and titanium ore slag, and calcium carbonate and magnesium carbonate, and is applied to light super high performance concrete, so that the strength, volume stability and durability of the light super high performance concrete are improved, and the preparation cost of the light super high performance concrete is reduced.

The application belongs to the technical field of building materials, and particularly relates to sound insulation mortar for kitchen and bathroom exhaust pipelines, and a preparation method and application thereof. Raw materials for preparing the sound insulation mortar include the following components in parts by weight: cement 250-400 parts, machine-made sand 200-300 parts, coal cinder 300-500 parts, fireproof glue powder 2.5-4 parts, polycarboxylic acid water reducer 1-3 parts, reinforcing agent 10-25 parts, expanding agent 1-5 parts, and water 200-250 parts. The sound insulation mortar for kitchen and bathroom exhaust pipelines has excellent performance and very low cost, and a large amount of solid waste coal cinder is used, so that the use amount of cement and machine-made sand is greatly reduced, the problem of resource utilization of solid waste coal cinder is solved, and economic value and social value are created.

This invention discloses a volcanic slag-based non-fired core-shell structure ceramsite, its preparation method, and lightweight insulating concrete. The preparation of the non-fired core-shell structure ceramsite includes mixing volcanic slag powder, volcanic slag particles, waste EPS insulation board particles, electrolytic manganese slag, modified sludge powder, and water, and adding the mixture to a disc granulator to granulate core raw material balls with a particle size of 3-8 mm. The mixture is then fed into the disc granulator and coated with a mixture of the outer shell slurry and aluminum powder until the ball size reaches 5-10 mm. CO2 gas is introduced for curing to obtain volcanic slag-based non-fired core-shell structure ceramsite. This invention achieves functional zoning utilization of solid waste by preparing non-fired "core-shell structure" ceramsite, and, in conjunction with a special all-solid waste cementitious material, constructs a multi-scale, gradient porosity and functional system in concrete consisting of "lightweight core pores - dense outer shell layer - fine aggregate gradation pores - matrix micropores," thereby simultaneously addressing multiple objectives such as solid waste disposal, building energy conservation, and synergistic improvement of material performance.

The utility model belongs to the technical field of cleaning chains, and particularly relates to a cleaning device for accumulated coal on two sides of a cleaning chain, which comprises a raw coal bunker, a belt weighing type coal feeder arranged at the lower end of the raw coal bunker, the cleaning chain arranged at the lower end of the belt weighing type coal feeder, a coal dropping pipe arranged at the right end of the cleaning chain, a hearth arranged at the right end of the coal dropping pipe, and a coal discharging pipe arranged at the right end of the hearth. Slag is arranged on the lower side of the sweeping chain, a scraper is arranged on an output chain of the sweeping chain, and an auxiliary mechanism is arranged on the scraper. According to the scheme, when the belt weighing type coal feeder is shut down and overhauled, the part which cannot be scraped below the sweeping chain is fully paved with the boiler slag, and under the action of the boiler slag, falling pulverized coal can be blocked, so that the pulverized coal can be fully scraped away by the sweeping chain and fed into a hearth; and the problem that coal powder on the lower side is prone to spontaneous combustion in the running and stopping period of the belt weighing type coal feeder is reduced and even completely eradicated.

The utility model relates to the technical field of smelting furnaces, in particular to a top side combined type copper smelting furnace deslagging system. Comprising a smelting furnace body, a slag discharging opening is formed in the side portion of the smelting furnace body, a platform is arranged below the slag discharging opening, a rotary flow guiding mechanism is arranged on the platform, a chute mechanism is arranged between the slag discharging opening and the top of the rotary flow guiding mechanism, and a slag ladle transferring mechanism used in cooperation with the rotary flow guiding mechanism is arranged below the platform. Slag can be stably conveyed to the slag ladle transferring mechanisms below the platform along the inclined chute, the slag ladle transferring mechanisms are arranged in multiple sets, the slag is guided into the different slag ladle transferring mechanisms through the rotary flow guiding mechanism, then the slag is conveyed to the slag ladle hanging position through the slag ladle transferring mechanisms, the residence time of the slag in the conveying process is shortened, the solidification risk is reduced, and the slag conveying efficiency is improved. The vertical layered layout of the platform and the cinder ladle transfer mechanism makes full use of the height space of an original crane plant, the original cinder ladle lifting process can be adapted without modifying the structure of the crane plant, and the technical improvement cost is reduced.

The invention belongs to the technical field of metallurgy, and relates to a method for preparing crude cadmium from cadmium-containing soot, which comprises the following steps: S1, carrying out neutral leaching on the cadmium-containing soot by using deionized water to obtain filter residues and filtrate 1, and then carrying out acid leaching on the filter residues by using sulfuric acid to obtain lead residues and filtrate 2; s2, after the filtrate 1 and the filtrate 2 are mixed, an oxidizing agent and ferric salt are added for primary purification, and arsenic-antimony slag and filtrate 3 are obtained; zinc powder is added into the filtrate 3 twice in sequence for secondary purification, and copper-nickel slag and filtrate 4 are obtained; s3, concentrating the filtrate 4 to obtain a cadmium-rich solution, and aging at 70-85 DEG C; and then cooling to 50-65 DEG C, adding polyethylene glycol, adding aluminum magnesium alloy powder under high-speed stirring, and carrying out a replacement reaction to obtain a filtrate and crude cadmium after the reaction is finished. According to the method, arsenic, antimony, lead and other impurities in the cadmium-containing soot are deeply removed, and high-purity compact coarse cadmium particles are obtained under the cooperation of a morphology regulator, high-speed stirring, aluminum magnesium alloy powder and the like.

The utility model relates to the technical field of heating devices, in particular to an upper combustion type biomass vegetable greenhouse heat preservation furnace which comprises a furnace body, an air inlet assembly and a feeding assembly, a fuel conveying auger is arranged in the furnace body, and an igniter is arranged at the bottom of the fuel conveying auger in the furnace body. An automatic ash pushing and conveying assembly after fuel combustion is arranged at the bottom of one side of a discharge port of the fuel conveying auger, the automatic ash pushing and conveying assembly comprises an ash pushing and cleaning plate, a combustion plate, an ash collecting plate and a driving assembly, the ash pushing and cleaning plate is connected and located below an ignition port of the igniter, the combustion plate is located at the bottom of the ash pushing and cleaning plate, and the ash collecting plate is located at the bottom of the combustion plate; the biomass vegetable greenhouse heat preservation furnace is convenient to use and operate, ash does not need to be cleaned manually after combustion, continuous use of the biomass vegetable greenhouse heat preservation furnace can be guaranteed, combustion ash is pushed forwards through cooperation of the driving assembly and the ash pushing and cleaning plate after biomass fuel is combusted, new fuel continues to be combusted, the heat preservation furnace can be continuously used, and the service life of the heat preservation furnace is prolonged. And the combustion efficiency is not influenced by ash accumulation.

The invention discloses an ash deposition detection device for an ash conveying pipeline of an economizer, and relates to the technical field of ash deposition detection. Comprising a material level detection part, a telescopic protection piece is installed on the material level detection part, and the telescopic protection piece is used for preventing interference; a detection in-place piece is mounted at the bottom of the telescopic protection piece; the detection in-place piece is used for controlling start of detection; a discharge detection piece is fixedly mounted on the side surface of the material level detection part; the discharging detection piece is used for preventing conveyed ash from colliding with the telescopic protection piece; a roof falling detection piece is mounted on the discharging detection piece; the roof fall detection piece is used for increasing the detection range; by adopting the discharging detection piece, stopping of material level detection work can be controlled during discharging, the situation that the telescopic protection piece is smashed by coal cinder ash to be damaged after stretching out is avoided, and the situation that the detected material level is not accurate is also avoided; the problems that an existing ash deposition detection device of an economizer ash conveying pipeline is inconvenient to stretch out and draw back to protect a level meter and is inconvenient to detect the material level during material discharging prevention are solved.

The invention discloses a method for preparing low-aluminum high-grade iron ore concentrate for iron phosphate production by using pyrite cinder, and belongs to the field of high-value utilization of solid waste resources and preparation of new energy materials. The method sequentially comprises the steps of screening, pre-magnetic separation, ore grinding, two-stage acid leaching, low-intensity magnetic separation and reverse flotation; according to the method, a two-stage acid leaching process is adopted, and deep chemical dissolution of aluminum impurities which are difficult to remove by a traditional physical method is realized through the synergistic complexing effect of inorganic acid and organic acid and assisted by a leaching aid; by combining magnetic separation pre-enrichment and mixed amine cation reverse flotation accurate separation, the pyrite cinder is converted into low-aluminum high-grade iron ore concentrate with the total iron grade larger than or equal to 69% and the aluminum grade smaller than or equal to 0.10%, the iron recovery rate is high, the harsh requirement of an iron phosphate precursor for an iron source is met, and an efficient solution is provided for high-value utilization of bulk solid waste.

The invention discloses a preparation method of a composite material for adsorbing ammonia nitrogen based on ball-milling magnetic modified red mud-coal cinder. The preparation method comprises the following steps: firstly, crushing red mud and coal cinder, and sieving; the preparation method comprises the following steps: weighing mixed coal cinder and red mud according to a mass ratio, then mixing the mixed coal cinder and red mud with ferroferric oxide according to a ratio, putting the mixture into a ball milling tank, adding an agate ball for balancing, then carrying out ball milling treatment, washing with pure water after ball milling is completed, collecting a product through a magnet, drying, grinding and sieving to obtain the magnetically modified red mud-coal cinder composite material. The invention further discloses application of the modified red mud-coal cinder prepared by the preparation method to adsorption of ammonia nitrogen in water treatment and soil improvement. The red mud-coal cinder composite material modified by the method adsorbs ammonia nitrogen in a water body, so that the influence of ammonia nitrogen pollution in the water body can be eliminated or reduced, the general problem that the red mud and the coal cinder are difficult to harmlessly dispose is solved, and compared with chemical modification, the time consumption is shorter, and the production cost is lower.