140 results about "Bottom ash" patented technology

The invention provides a fire coal bottom ash-based low-shrinkage foam concrete material based on fluidity control as well as a preparation method and application of the fire coal bottom ash-based low-shrinkage foam concrete material. According to the invention, the proportioning water consumption under different coal-fired bottom ash mixing amounts is accurately calculated through a water consumption calculation formula, and the foam concrete material is prepared by combining aggregate grain composition regulation and control. The foam concrete material provided by the invention not only has the characteristics of low drying shrinkage, sound absorption, heat insulation, light weight, high strength, low cost, wide application range and the like, but also fully utilizes bulk solid wastes such as coal-fired bottom ash and the like, and adopts the coal-fired bottom ash to replace sand aggregate, so that the use amount of sand is greatly reduced, the exploitation of natural resources is reduced, the construction cost is reduced, and the environmental pollution is reduced. And the economic value is improved.

The invention relates to the technical field of building materials, in particular to a carbon sequestration concrete solid brick prepared from coal-based solid waste and a preparation method of the carbon sequestration concrete solid brick. The carbon sequestration concrete solid brick is prepared from the following raw materials in parts by weight: 20 to 30 parts of fly ash, 65 to 75 parts of furnace bottom slag and 5 parts of cement, wherein the fly ash is secondary ash, the particle size of the furnace bottom slag is smaller than or equal to 4.75 mm, and the mark number of the cement is P.O 42.5. The method comprises the following steps: firstly, enabling carbon dioxide to react with alkaline components such as dicalcium silicate in the fly ash to form carbonate so as to realize effective carbon sequestration; and then through secondary mineralization maintenance, carbon dioxide, active components such as calcium and magnesium in the cement and dicalcium silicate which is not completely reacted in the fly ash are subjected to carbonation reaction, so that a product layer filling effect is realized. According to the invention, the building material with good carbon sequestration performance and excellent mechanical properties is prepared by utilizing industrial solid waste and carbon dioxide, so that energy conservation and emission reduction are realized, meanwhile, greenhouse gas emission is reduced, and the performance of the building solid waste brick is enhanced.

The invention discloses a building material base material produced by utilizing household garbage incineration waste and a preparation process of the building material base material. The base material is prepared from the following components in percentage by weight: 30 to 50 percent of fly ash, 20 to 40 percent of bottom slag, 10 to 20 percent of Portland cement, 3 to 10 percent of Fe-N-C-coated Cu-NPs modifier and 5 to 15 percent of water. Fly ash is subjected to water washing and 600-800 DEG C heat treatment to remove chlorine salt and organic matter, and bottom slag is subjected to screening and magnetic separation to control the particle size and the iron content. Fe-N-C-coated Cu-NPs is prepared through high-temperature pyrolysis and a wet chemical method, and dioxin decomposition and heavy metal solidification are catalyzed. The preparation process comprises the steps of pretreatment, mixing, vibration molding (5-10 MPa) and wet curing (20-35 DEG C, 80-95% humidity and 7-21 days). The compressive strength of the base material reaches 11.8-14.0 MPa, the dioxin content is lower than 0.1 ng-TEQ / kg, the heavy metal curing rate is 96.5-98.5%, the porosity is 10.5-12%, solid waste resource utilization is achieved, and environmental protection and economic benefits are achieved.

The invention relates to the technical field of roadbed materials, in particular to a composite filling material and a preparation method and application thereof. The composite filling material provided by the invention is prepared from the following raw materials in parts by weight: 18 to 26 parts of pretreated phosphogypsum, 30 to 45 parts of pretreated household garbage incineration bottom ash, 8 to 18 parts of alkaline excitation material, 6 to 20 parts of aluminum-silicon material, 5 to 25 parts of aggregate and 1 to 4 parts of sodium sulfate aqueous solution, the pretreatment of the phosphogypsum comprises lime milk aging treatment; the pretreated household garbage incineration bottom ash comprises gelation active fine powder and structural aggregate. The composite filling material formed by taking the ardealite, the household garbage incineration bottom ash, the alkaline excitation material and the aluminum-silicon material as main raw materials is high in industrial solid waste mixing amount, stable in performance and environment-friendly, reduces the pollutant leaching risk, is suitable for roadbed structures such as an embankment filling layer, a semi-rigid base layer and a flexible subbase layer, and has a wide application prospect. And the benefit is obvious.

Manufacturing lightweight aggregate (LWA) by a sintering technique requires a delicate balance among three conditions: forming sufficient amount of molten liquid phase during sintering; reaching an appropriate viscosity for solid-liquid suspension; and emitting sufficient amount of gas that can be entrapped by the liquid phase to form pores. LWAs were made from low-calcium and high-calcium Waste Coal Combustion Ash (W-CCA) including fly ash and bottom ash. A mass fraction of at least 40% liquid phase for fly ash and 50% for bottom ash is required for a successful entrapment of emitted gaseous phases during sintering. Larger pores were observed in the microstructure of LWA samples made using high-calcium W-CCA in comparison to low-calcium W-CCA. This result was mainly attributed to the high-calcium samples forming liquid phases with lower viscosity values and emitting higher amounts of gaseous phase during sintering than did the low-calcium samples. The gaseous phase was generated by hematite reduction and anhydrite decomposition.

The invention provides a boiler tail flue gas waste heat recovery equipment front bottom accumulated dust cleaning device which comprises a dust collecting assembly and a dust collecting assembly, the dust collecting assembly comprises a dust collecting box, a dust collecting bin and a negative pressure bin are arranged in the dust collecting box, an air inlet and an air outlet are formed in the side wall of the dust collecting box, a filtering piece is arranged between the dust collecting bin and the negative pressure bin, and a negative pressure fan is arranged in the negative pressure bin; the sweeping assembly comprises a dust collection hose, a hard pipe, a handheld pipe, an equipment bin, a dust collection cover, a servo motor and a brush head, the output end of the hard pipe is communicated with the air inlet through the dust collection hose, the handheld pipe is connected to the hard pipe through a connecting piece, the equipment bin is arranged at the end of the handheld pipe, the dust collection cover is arranged in the equipment bin, and the servo motor is arranged in the equipment bin; the brush head is arranged in the dust collection cover and connected with the servo motor, and the input end of the hard pipe is communicated with an inner cavity of the dust collection cover. The device can remarkably reduce the labor intensity of manual cleaning, solves the problem that dead corners are difficult to touch in a traditional mode, and improves the thoroughness of cleaning and the working efficiency.

The present application relates to coal mine sealing fire prevention and carbon sequestration technology field, especially to a kind of adsorption sealing fire prevention and extinguishing material and its application.The adsorption sealing fire prevention and extinguishing material includes porous carrier and organic amine;The preparation method of the porous carrier includes the following steps: mixing garbage bottom ash and slag uniformly, to obtain mixture material;Surfactant is dissolved in water, stirring and foaming, then adding alkali activator and mixing uniformly, to obtain alkaline foaming liquid;The alkaline foaming liquid is mixed with the mixture material to obtain foaming slurry;The foaming slurry is cured at room temperature, to obtain the porous carrier;The organic amine accounts for 5wt%-25wt% of the mass of the foaming slurry.The present application not only takes environmental protection, low cost, simple preparation, but also can seal gob air leakage channel at the same time, and adsorb carbon dioxide, when coal mine fire occurs, ambient temperature rises, and the adsorbed CO2 can be promptly desorbed, to achieve the effect of fire prevention.

The invention relates to the technical field of garbage incinerator devices, in particular to a CFD garbage incinerator for improving the combustion efficiency through primary air and secondary air. The system comprises a garbage incinerator, a comburent feeder arranged on one side of the garbage incinerator, a cyclone separator, a smoke dust remover, filtering and cooling equipment, a chimney and a bottom ash cooler arranged at the lower end of the garbage incinerator, wherein the cyclone separator, the smoke dust remover, the filtering and cooling equipment and the chimney are sequentially arranged on the other side of the garbage incinerator; the blast layer, the lower fluidization layer and the crushing fluidization layer are arranged in the garbage incinerator, primary air is introduced into the blast layer to blow comburent entering the garbage incinerator, so that the comburent is subjected to fluidization combustion in the lower fluidization layer, and secondary air drives the comburent to enter the crushing fluidization layer to be crushed and dispersed. The crushing assembly is used for crushing, dispersing and mixing comburent, the uniformity and stability of the waste incineration fluidization state are maintained, it is guaranteed that the comburent is fully combusted, and the combustion efficiency is improved.

The invention discloses a method and a calcining device for solidifying secondary aluminum ash by utilizing desulfurized gypsum, comprising the following steps: S1. calcining desulfurized gypsum to obtain gypsum clinker; S2. mixing red mud, secondary aluminum ash, and water to obtain slurry A; S3. filtering slurry A and adding bottom ash to obtain slurry B; S4. mixing gypsum clinker and K2SO4 or Na2SO4, and adding the mixture to slurry B to obtain slurry C; S5. shaping slurry C into a solidified body. The desulfurization gypsum of the present application is calcined at high temperature to produce anhydrous gypsum, which has excellent strength, bonding and water resistance, and can firmly solidify the secondary aluminum ash together, reducing the erosion and penetration of external water on the aluminum ash; K2SO4 or Na2SO4 shortens the coagulation time of the slurry and increases its strength; after the red mud and aluminum ash are mixed in water, the alkaline substances released in the red mud can promote the hydrolysis of AlN and metallic Al in the secondary aluminum ash, thereby eliminating the water reactivity of the secondary aluminum ash, preventing the aluminum ash from spontaneously combusting and releasing harmful gases after landfill.

The present invention discloses a low-cost clinker-free cementitious material and its application, which belongs to the field of building materials. Taking the mass of the clinker-free cementitious material as 100%, it includes the following raw materials in percentage by mass: 20-60% of water-quenched blast furnace slag, 10-40% of garbage incineration bottom ash, 20% of washed garbage incineration fly ash, and the balance is desulfurization gypsum. The low-cost clinker-free cementitious material is used to replace cement solidification stabilization on a large scale in preliminary combination with cementitious filling mining technology, or to provide a low-cost cement-free clinker cementitious material for preparing concrete for the construction industry. The low-cost clinker-free cementitious material provided by the present invention has a simple composition and a high overall economic benefit, improves the recycling rate of washed garbage incineration fly ash and garbage incineration bottom ash, and synergistically recycles washed garbage incineration fly ash and garbage incineration bottom ash that are more difficult to comprehensively utilize.

The invention belongs to the technical field of engine air inlet pre-filtering, discloses an automatic ash discharging device and an ash discharging method for a cyclone pipe pre-filter, and aims to overcome the defects of inconvenience in maintenance, high energy consumption, insufficient sealing reliability and the like caused by the fact that the cyclone pipe pre-filter depends on manual ash discharging or a complex active pumping and discharging system in the prior art. The transparent material dust collection shell is matched with the slope side wall with the high outer portion and the low inner portion, so that the dust deposition state is visualized, and dust automatically flows and gathers; a hinged cover plate is arranged at a bottom ash discharge port and is driven to be opened and closed by an electric actuator, wired / wireless dual-mode triggering is supported, and two ash discharge ending conditions of timing automatic closing and manual confirmation closing are matched. The air pre-filter has a good ash discharging effect, it is guaranteed that the cyclone pipe always runs under the designed working condition, the rough filtration efficiency of the air pre-filter reaches 95%, the overall performance of a filtration system is remarkably improved, high reliability and operation convenience are achieved, and the air pre-filter meets the air inlet pre-filtration requirements of engineering machinery, agricultural machinery and other scenes.

This invention discloses a grouting material based on water-treated municipal solid waste incineration bottom ash and its preparation method. The grouting material comprises 65-85 parts by weight of silicate cement, 15-35 parts by weight of municipal solid waste incineration bottom ash, and 39-41 parts by weight of mixing water. Before preparing the grouting material, the municipal solid waste incineration bottom ash is partially treated with mixing water for no less than 15 days. Pre-treating the waste incineration bottom ash with partial mixing water effectively reduces the aluminum content in the bottom ash, inhibiting the expansion and cracking caused by the reaction of aluminum in the alkaline environment of cement to generate hydrogen, thereby ensuring the volume stability and mechanical strength of the material. Ordinary silicate cement is used as the matrix, and water-treated municipal solid waste incineration bottom ash is added as an auxiliary cementing material. The mixture is stirred with water to form a slurry. The resulting grouting material has excellent mechanical properties and is suitable for engineering applications such as foundation reinforcement and rock and soil fissure filling.

A method for processing fly ash to reduce a carbon content thereof is disclosed. The disclosed method may include drying a batch of wet fly ash and separating it into first and second streams of dried fly ash, with the second stream then undergoing classification to remove oversized particles and bottom ash therefrom and thermal treatment to offload carbon therefrom. The method also may include mixing (A) the first stream of dried fly ash and (B) the classified and thermally treated second stream of dried fly ash to produce (C) a processed fly ash mixture having a carbon content in the range of about 3.0–6.0 wt%. In some cases, additive(s) optionally may be added to the processed fly ash mixture, for example, to further adjust its loss on ignition (LOI) to a targeted range. Also disclosed are several systems embodying such methodology.

This utility model belongs to the technical field of baghouse dust collectors, and in particular, a pulse jet baghouse dust collector. It includes a base plate with four mounting slots. The dust collector also includes: a support frame fixedly mounted on the top of the base plate, on which a pulse jet dust collector is fixedly mounted, with a bottom ash pipe fixedly connected to the bottom of the pulse jet dust collector; a ash guide pipe, the top of which is rotatably connected to the bottom of the bottom ash pipe; and a fixing rod, the bottom of which is fixedly mounted on the top of the base plate, with a disc fixedly mounted on the top of the fixing rod. The disc has four through holes spaced evenly in a ring, and the bottom of the ash guide pipe slides in contact with the top of the disc. This utility model collects and stores dust by setting up multiple collection boxes, and allows for disassembly and cleaning of the collection boxes even when the machine is stopped, greatly improving the working efficiency of the pulse jet dust collector. It is also convenient to operate, saves time and effort, and is highly practical.

The utility model relates to a flame generating assembly. The flame generating assembly comprises simulation false firewood, false firewood bottom ash, a light reflecting device, a driving mechanism and a light source. The simulation fake firewood is arranged above the fake firewood bottom ash, the light reflecting device is arranged below the simulation fake firewood and comprises a first light reflecting strip shaft and a second light reflecting strip shaft which are rotatably arranged, and the driving mechanism drives the first light reflecting strip shaft and the second light reflecting strip shaft to rotate. The light source is configured to project light onto at least one of the dummy firewood and the dummy firewood bottom ash by means of the reflective device. According to the flame generation assembly and the simulation fireplace, the structural design is reasonable and compact, assembling is convenient, cost is relatively low, and the dynamic flame effect can be achieved.

The circulating fluidized bed boiler combustion system comprises a hearth, the cyclone separator, separator vertical pipes and a mixed air supply system, the mixed air supply system comprises a mixed air pipe, a primary air pipeline, a recirculating flue gas pipeline, vertical pipe spray pipes and a mixed air pipe header pipe, the vertical pipe spray pipes are distributed on the mixed air pipe, and the separator vertical pipes are distributed on the mixed air pipe header pipe. The spraying end of the vertical pipe spraying pipe is communicated with the separator vertical pipe, the recirculating flue gas pipeline is communicated with a tail flue outlet and a mixed air pipe header pipe, the tail end of the mixed air pipe header pipe is communicated with a mixed air pipe, and the primary air pipeline is communicated with the mixed air pipe header pipe; and a mixed air supply main valve, a primary air valve and a recirculating flue gas valve are respectively arranged on the mixed air main pipe, the primary air pipeline and the recirculating flue gas pipeline. The efficiency of the separator can be adjusted according to the actual combustion working condition, so that the hearth temperature is guaranteed, and the carbon content of bottom slag is controlled. And meanwhile, a good effect is also achieved on flame-retardant particle combustion enhancement and high alkali metal fuel coking inhibition.

This utility model discloses an anti-clogging structure for a pulse dust collector. The pulse dust collector has a clean air duct and fan connected to its left side for discharging filtered clean air, and a pulse air manifold installed on its right side for cleaning the dust collection bag. Its bottom features an anti-clogging discharge trough, including a dust collection trough, a dust inlet pipe, and an anti-clogging mechanism. In the anti-clogging mechanism, a straight pipe is connected to the bottom ash discharge port of the dust collection trough, and an inclined ash discharge pipe is fixed to the bottom side wall of the straight pipe with their inner cavities communicating. A lower end cover is fixed to the bottom of the straight pipe, and a servo motor is connected to a drive shaft via a coupling. The bottom section of the outer ring of the drive shaft has spiral blades that forcefully transport clogging dust downwards; the top section of the outer ring is connected to a scraper via a support rod. The scraper is close to the inner wall of the dust collection trough and can scrape off clumps of adhering dust. This utility model's anti-clogging structure effectively solves the problem of ash discharge clogging in pulse dust collectors, ensuring stable equipment operation and improving dust removal efficiency.

The invention relates to the field of fuel and boiler systems, in particular to a coal gangue valuable element self-heating extraction system which comprises a feeding module, a crushing module, a decarburization activation module and a valuable element extraction module which are sequentially linked to form a closed loop. The feeding module adopts a belt type and spiral feeding combination; the crushing module is used for crushing the coal gangue until the particle size is below 2cm by using a jaw crusher; the temperature of the decarburization activation furnace is controlled at 750-850 DEG C, coal gangue decarburization, ash activation and rare earth calcination are achieved, flue gas is subjected to heat exchange to produce 300-450 DEG C high-temperature steam for energy supply, and bottom slag is ground to 200 meshes or below for standby application. The valuable element extraction comprises a magnetic separation iron removal sub-module, a hydrochloric acid leaching sub-module and the like, and the system adopts gradient energy utilization (high-temperature steam, medium-temperature steam and low-temperature steam are respectively used for acid leaching, aluminum chloride hexahydrate crystallization, extraction and white carbon black preparation). The system realizes the utilization of all components such as carbon and aluminum in the coal gangue, produces high-value products such as metal gallium and rare earth oxides, realizes self-heating to reduce energy consumption, is matched with an environment-friendly treatment unit, is adaptive to different coal gangue components, and is good in energy efficiency and economical efficiency.

The invention discloses a modified emulsified asphalt mixture and an ultrathin wearing layer preparation method, and belongs to the field of road engineering, the modified emulsified asphalt mixture is prepared from the following components by weight: 10-16 parts of emulsified asphalt, 6-9 parts of epoxy resin, 3-9 parts of a flexibilizer, 0.1-0.5 part of a coupling agent, 90-110 parts of aggregate, and 10-15 parts of a composite filler; the composite filler is one or a mixture of furnace bottom ash, fly ash and polyamide fiber, and through physical crosslinking of the flexibilizer and chemical curing of the epoxy resin, the toughness and bonding performance of the emulsified asphalt are remarkably enhanced; meanwhile, the basalt aggregate is pretreated by adopting the silane coupling agent, so that the surface characteristics of the aggregate are optimized, the interface bonding force between the aggregate and the modified asphalt is greatly improved, and the problem of insufficient performance of a traditional material under traffic load is fundamentally solved.

The utility model relates to the field of boiler bottom ash treatment, in particular to a scraper slag conveyor with good stability, which comprises a triangular sprocket group, the tooth crest of the sprocket group is meshed with a conveying group for conveying slag, and the outer surface of the sprocket group is bolted with a chain scraping group for scraping the outer surface of the conveying group. The material scraping end of the chain material scraping set makes contact with the outer side of the conveying set, the outer side of the chain tooth set is connected with a back material scraping set for scraping materials on the inner surface of the conveying set, and the back material scraping set makes contact with the inner side of the conveying set. According to the invention, the scraper slag salvaging machine is in an inverted triangle state in a slag natural conveying state, and has a high meshing transmission effect in a severe and severe use environment.

This disclosure relates to the field of power generation technology, and in particular to a cooling device and method for a sorting chamber, to solve the problems of poor stability, frequent failures, and low recovery efficiency in existing circulating fluidized bed boilers. The chamber is inclined and has an inlet ash inlet, a first ash discharge outlet, and a second ash discharge outlet. An ash inlet unit is fixedly installed on the chamber and positioned at the ash inlet; the ash inlet unit is used to regulate the amount of ash entering the sorting chamber. The sorting unit is inclined and communicates with the ash inlet unit, discharging the sorted bottom ash through the first ash discharge outlet. The cooling unit includes multiple cooling chambers and multiple baffles, with each baffle forming one cooling chamber. Each baffle contains a cooling medium for cooling, and the bottom ash in the cooling chamber is discharged through the second ash discharge outlet. The sorting chamber cooling device and method provided in this disclosure are used to improve the stability of circulating fluidized bed boilers and reduce their failure rates.

The invention discloses a method for collaboratively treating baking soda desulfurization ash and waste iron oxide desulfurizer. The method comprises the following steps: placing baking soda desulfurization ash in a stirring tank, adding water at a water-ash ratio of (3-5):1, and stirring the mixture into fluidized slurry; uniformly mixing the waste iron oxide desulfurizer and coal at a mass ratio of (1-5):1000, and grinding the mixture with steel balls to obtain a mixed fuel; atomizing the slurry at a fuel delivery port of a pulverized coal boiler, blending the mixture with the mixed fuel, and then feeding the mixture into a furnace for combustion; volatile matter is purified by a terminal gas purification device to generate desulfurization gypsum, and ash is mixed with fly ash and bottom ash. The method reasonably configures the addition amounts of the waste iron oxide desulfurizer and the baking soda desulfurization ash, thereby ensuring that the discharged flue gas meets the ultra-low emission environmental protection requirement, and the ash mixed with the fly ash and bottom ash meets the environmental protection requirement.

The utility model discloses a deslagging system for bottom slag of a zinc smelting electric furnace, and relates to the technical field of electric furnace deslagging. The slag pushing device comprises a slag pushing component and a driving component, the slag pushing component comprises a slag pushing rake and an adapter, a pushing plate is fixedly mounted on one side plate surface of the slag pushing rake, an elastic tensioning rib is rotatably mounted at one end, away from the slag pushing rake, of the pushing plate, and the upper side plate surface of one end, close to the elastic tensioning rib, of the pushing plate is hinged to the adapter; the end, away from the pushing plate, of the elastic tensioning rib is rotationally connected with an adapter, and the adapter is installed on the driving component in a sliding mode. According to the utility model, the switching seat is arranged on the driving part, and the driving part controls the switching seat to move, so that manual pushing and pulling of the slag rake are omitted; one end of the pushing plate is connected with the adapter through the elastic tensioning rib, when the slag pushing rake cannot move downwards, the adapter moves downwards to enable the elastic tensioning rib to continuously tension and store force, the slag pushing rake cannot deflect when pushed out, and damage to the slag pushing rake caused by collision with the interior of the electric furnace is prevented.

The invention belongs to the technical field of road engineering materials, and particularly relates to a waste incineration bottom ash temperature-adjusting asphalt mixture and a preparation method and application thereof.The waste incineration bottom ash temperature-adjusting asphalt mixture comprises mineral aggregate and asphalt, the mineral aggregate comprises waste incineration bottom ash, the mineral aggregate accounts for 94-96% of the weight of the raw materials, and the asphalt accounts for 2-3% of the weight of the raw materials. The asphalt accounts for 4-6% of the raw materials in parts by weight; the mineral aggregate is composed of aggregate, mineral powder filler and phase change microcapsules, and the waste incineration bottom ash comprises waste incineration bottom ash aggregate and waste incineration bottom ash powder; the aggregate and the mineral powder filler contain waste incineration bottom ash. According to the invention, the waste incineration bottom ash is adopted to replace mineral powder and fine aggregate in the mixture, so that the problems of difficulty in bottom ash treatment and shortage of natural aggregate can be solved, resource utilization of the household waste incineration bottom ash is realized, and the value of sustainable development is met; meanwhile, the porous structure of the bottom ash aggregate can also improve the water permeability of the asphalt road and provide certain sound absorption and noise reduction capabilities.

The invention relates to a radioactive combustible solid waste treatment device and method. The device comprises a gasification furnace, an air mixing system, a flue gas recirculation system, a steam mixing system, a combustion furnace and a stored ash ashing device. Materials are subjected to various reactions in the gasification furnace to form gas products, liquid tar and solid residues (bottom ash), the gas products enter the combustion furnace to be fully combusted, in the process, flue gas mixed with water vapor is introduced into the gasification furnace from the position below a fire grate of the gasification furnace, a material layer and a pyrolysis gas layer through a flue gas recirculation system, and the gas products are fully combusted. The water vapor source comprises two parts, namely water vapor generated by combustion of pyrolysis gas in the combustion furnace and water vapor supplied from the outside. After the water vapor enters the cracking gasifier, the water vapor and coke are subjected to water gas reaction on a coke burning layer, so that the waste treatment effect is further improved; the cracking layer participates in the material cracking process, so that the cracking rate is increased, further cracking of macromolecular products is promoted, and generation of heavy tar is reduced.

The utility model discloses a dust removal device of a mining unloading station, which relates to the technical field of mining equipment and comprises an unloading station body and a dust removal box, one side of the unloading station body is provided with the dust removal box, the top end of the dust removal box is fixedly provided with a fan box, one side of the dust removal box is connected with a dust-gas pipeline in a circulating manner, and the dust-gas pipeline is provided with a fan. And an air volume adjusting valve is fixedly mounted in the middle of the dust-gas pipeline. The fan box of the dust removal device of the mining unloading station extracts dust-containing gas generated by the unloading station body through the dust-gas pipeline and the dust hood, the air volume adjusting valve on the dust-gas pipeline can adjust the air volume, the dust-containing gas enters the dust removal box to be treated, dust is discharged from the bottom dust discharge port, and purified gas is discharged from the purified gas outlet. The water pump above the water tank conveys water to the water supply pipe annularly distributed on the outer side of the dust suction hood through the connecting water pipe and the water supply pipe, then the water is sprayed out through the multiple mist spray heads on the inner side to spray and reduce dust in the dust suction hood, the fixing frame is used for stabilizing the water supply pipe, efficient dust removal is achieved, and the unloading station environment is improved.

The utility model discloses a device for modularly treating waste gas containing metal dust, relates to the technical field of waste gas treatment, and aims to solve the technical problem that the current device for modularly treating waste gas containing metal dust is inconvenient to discharge ash without shutdown. Through the design of the collection box, the interior of the collection box is divided into three groups of cavities through two groups of separation plates, then circular pipes of ash hoppers at the bottoms of the baffling settling chamber, the electrostatic dust collection chamber and the filter bag dust collection chamber are connected with the corresponding cavities, and a blocking structure is arranged in each circular pipe, so that when ash needs to be discharged, the blocking structures can be controlled to seal the circular pipes, and the dust is discharged conveniently. At the moment, metal dust and other particles filtered by the baffling settling chamber, the electrostatic dust collection chamber and the filter bag dust collection chamber are directly stored in the dust hopper, then personnel can directly discharge dust in a cavity of the collection box, and in the process, the device works normally, so that the effect of discharging dust without shutdown can be achieved.

The utility model discloses a combustion device of a biomass gasification furnace, which belongs to the technical field of biomass gasification furnaces and comprises a furnace body, an ash discharge cylinder is arranged on the side of the bottom end of the furnace body, an arc-bottom ash deposition groove is arranged at the bottom of an inner cavity of the furnace body, and an ash falling pipe is fixedly sleeved at the bottom of one end of the ash discharge cylinder. According to the waste residue ash collecting device, waste residue ash is filtered through the supporting pore plate, falling waste residue ash is received through the arc-bottom ash deposition groove, the first motor is used for driving the spiral conveying rod to rotate so that the waste residue ash in the arc-bottom ash deposition groove can be discharged out of the ash discharging barrel and the ash falling pipe, and the waste residue ash is collected through the ash receiving box in the ash deposition box; the function of automatically discharging waste residue ash is achieved, and when the waste residue ash in the ash receiving box needs to be cleaned, the upper portion of the inner cavity of the ash accumulating box is blocked through the drawing sealing plate, so that operation of the furnace body does not need to be stopped when the ash receiving box is drawn out.

The utility model relates to the technical field of hanging furnaces, in particular to a liftable hanging furnace which comprises a hanging furnace body, a simulation flame plate is mounted in the hanging furnace body, a simulation bottom ash plate is mounted in the hanging furnace body, and stable mounting mechanisms are arranged in mounting plates. And lifting height adjusting mechanisms are arranged on the surface of the moving column and in the fixing rod correspondingly, and an automatic humidifying mechanism is arranged in the fixing frame. According to the hanging furnace, the phenomenon that the hanging furnace is loosened or even falls off in the using process is avoided, the overall stability of the hanging furnace is higher, the height position of the hanging furnace body can be adjusted according to the using requirement when the hanging furnace is used, a user can use the hanging furnace more conveniently when the hanging furnace is used, and the using cost is reduced. And when the hanging furnace is used, the surrounding environment can be automatically humidified, the phenomenon that the surrounding environment is dry when the hanging furnace is used for a long time is avoided, and the practicability of the hanging furnace is greatly improved.

The utility model discloses a waste incineration bottom ash pelletizer which comprises a base and a pelletizing assembly, a driver is installed in the base, a pelletizer shell is installed at the top of the base, a feeding cylinder is installed at the top of the pelletizer shell, and a discharging disc is arranged in the pelletizer shell; and the granulation assembly is arranged in the granulator shell and is used for granulation. Through the synchronous rotation of the driving rod, the rotating rod and the extrusion cylinder, the efficient extrusion and granulation of a waste incineration bottom ash mixture are realized. According to the continuous and stable working mode, the granulation efficiency is greatly improved, the requirement for large-scale treatment of waste incineration bottom ash is met, and uniform distribution and bonding forming of a mixture in a granulation cavity are ensured in the rolling extrusion process of the extrusion cylinder at the top of the granulation disc. By means of the design, manufactured particles are regular in shape and uniform in size, and the quality and stability of products are improved.