157 results about "Cinder" patented technology

The invention discloses a belt conveyor tail rolling frame capable of improving the conveying capacity, relates to the technical field of belt conveyors, and solves the problems that coal cinder adhered to a conveying belt can influence the stability of the conveying belt during conveying, and the conveying belt is likely to deviate. The invention discloses a belt conveyor tail rolling frame capable of improving transportation capacity. The belt conveyor tail rolling frame comprises a belt conveyor rolling frame. The carrier roller positioning assemblies are mounted in the belt conveyor rolling frame through screws; the automatic conveying and impurity removing mechanism is arranged at the tail of the belt conveyor rolling frame and arranged on the side face of the carrier roller positioning assembly, and a conveying belt located above the carrier roller positioning assembly is arranged on the outer side of the automatic conveying and impurity removing mechanism. According to the coal cinder conveying device, the conveying belt is guided and limited, and the coal cinder on the surface is vibrated, so that the probability that the coal cinder is adhered to the conveying belt and the conveying belt deviates can be effectively reduced.

The invention discloses a coal cinder packaging high-temperature phase change material method for efficient waste heat recovery, which comprises the following steps: adding a fluxing agent into liquid slag, and reheating until the liquid slag is completely molten, so that the liquid temperature of the slag is higher than the phase change temperature of the phase change material; and the metal phase change particles are evenly wrapped with the liquid slag, the metal phase change particles wrapped with the slag are subjected to heat exchange with cooling water, the particles release heat and are cooled and solidified, and the packaging structure is formed. The invention further discloses a coal cinder packaging high-temperature phase change material device for efficient waste heat recovery. According to the invention, the high-temperature metal phase-change material is used as a core, and the industrial solid waste slag is used as a packaging shell, so that a unique macroscopic packaging structure is formed; the high-temperature characteristic of the liquid slag generated in the industrial process can be fully utilized, and the liquid slag is used as a heat source in the sintering process, so that heat energy is recycled.

The roadbed and pavement structure comprises a gravel sand layer, a coarse sand layer, a graded sand grain layer, a coarse sand filter layer, a subbase layer, a scoria layer and a surface layer, wherein the gravel sand layer is transversely laid on the lower layer of the coarse sand layer, the coarse sand filter layer is located on the upper layer of the graded sand grain layer, the coarse sand filter layer is a longitudinal and transverse structure layer laid on the lower layer of the subbase layer 5, the subbase layer and the volcanic cinder layer are alternately laid to form a compaction layer, and the compaction layer is a two-way transverse slope with the gradient being 0.1%-0.2% and a two-way longitudinal slope with the gradient being 0.3%-0.4% in the width direction of the road surface. Drainage columns are distributed on the compaction layer along the width direction of the pavement in a spaced matrix manner; the surface layer comprises an upper surface layer and a lower surface layer, the upper surface layer is positioned above the lower surface layer, and a thermal insulation layer is arranged between the lower surface layer and the upper surface layer. The roadbed and pavement structure solves the problems that the drainage effect of an existing road is not ideal, and the roadbed and pavement structure is very easy to damage.

The invention relates to the field of building materials, and discloses a coal cinder-based light thermal insulation castable and a preparation method thereof, and the coal cinder-based light thermal insulation castable is prepared from the following raw materials by mass: 50%-65% of industrial kiln coal cinder, 15%-20% of Portland cement, 8%-15% of perlite, 5%-10% of vermiculite, and 3%-5% of clay. And the application range of the temperature is 800-1000 DEG C. According to the coal cinder-based light thermal insulation castable prepared by taking the industrial kiln coal cinder and the Portland cement as main raw materials, the purchase cost of the raw materials is reduced, the effect of reducing the production cost can also be achieved, and the castable has the advantages of lower heat conductivity coefficient, low volume weight and high drying compressive strength, and is suitable for being used at the working condition temperature of 800-1000 DEG C.

The utility model discloses a self-discharging cinder valve, and belongs to the technical field of cinder valves. The top of the valve body is fixedly connected with an ash inlet pipe, the bottom of the valve body is fixedly connected with an ash outlet pipe, the top of the outer wall of the valve body is fixedly connected with a clamping block, one side of the clamping block is fixedly connected with an air inlet pipe, an air inlet channel is formed in the middle of the clamping block, and the top of the inner wall of the valve body is fixedly connected with a convex block; an air outlet channel is formed in the middle of the protruding block, the air inlet pipe, the air inlet channel and the air outlet channel communicate with one another, an electric nozzle is fixedly connected into the air inlet channel, and a dust discharging assembly is arranged in the valve body. The dust discharging valve can be connected with air supply equipment through the air inlet pipe, air can be guided into the valve body through the air inlet channel and the air outlet channel, the air can be indirectly blown by driving the electric nozzle, dust in the valve body can be cleaned, and therefore regular cleaning of the dust discharging valve is avoided.

The invention relates to the technical field of industrial solid waste resource utilization, in particular to a method for preparing ferrous phosphate octahydrate by taking pyrite cinder as a raw material, which comprises the following steps: 1) taking pyrite cinder as a raw material, and carrying out ball milling to obtain fine powder; 2) rinsing the fine powder with dilute acid and water respectively to obtain red slag; 3) mixing the red slag with a reducing agent, and calcining to obtain reducing slag; (4) under the protection of inert gas, leaching the reducing slag with sulfuric acid, filtering to obtain a leaching solution, and adjusting the iron ion concentration and the iron-phosphorus ratio to obtain an iron-phosphorus solution; (5) under the protection of inert gas, dilute alkali is added into the iron-phosphorus solution to adjust the pH value, filtering is performed after full reaction, and an iron-phosphorus purified solution is obtained; (6) under the protection of inert gas, dilute alkali is added into the iron-phosphorus purified liquid to adjust the pH value, filtering is performed after full reaction, and a filter cake is obtained; and 7) washing the filter cake, and carrying out vacuum drying to obtain ferrous phosphate octahydrate. The problems of environmental pollution and serious resource waste caused by difficult recycling of pyrite cinder can be solved.

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 relates to an anti-jamming device for a star-shaped cinder valve of a dust removal system, and relates to the technical field of dust removal systems. The device comprises an ash bin, a gate valve and a star-shaped ash discharging valve which are sequentially arranged from top to bottom, a pup joint is arranged between the gate valve and the star-shaped ash discharging valve, the pup joint is used for communicating the gate valve and the star-shaped ash discharging valve, and the pup joint is connected with the gate valve and the star-shaped ash discharging valve through fasteners. The star-shaped cinder valve has the effects that the disassembly convenience of the star-shaped cinder valve during blockage is improved, and the service life of the star-shaped cinder valve and the service life of the gate valve are prolonged.

The invention relates to the technical field of concrete admixtures, and particularly discloses a concrete admixture and a preparation method thereof. The concrete admixture provided by the invention is prepared from the following raw material components in parts by mass: 10 to 15 parts of rice hull ash, 20 to 25 parts of waste glass powder and 45 to 50 parts of modified solid waste, the modified solid waste comprises fly ash, coal cinder, calcium carbonate, and bacillus subtilis and metabolites thereof adsorbed on the surfaces of the fly ash and the coal cinder. Through the synergistic effect of the rice hull ash, the waste glass powder and the modified solid waste in the admixture, the impermeability of the concrete is remarkably improved, invasion of harmful ions can be effectively inhibited, and the corrosion resistance of the concrete is enhanced.

The invention provides an underground movable hydraulically-controlled water jet device, which relates to the field of water jet cutting devices and comprises a vertical support frame, a brushing frame, a swing pipe, a jet device chassis and a hydraulic cylinder, the vertical supporting frame comprises a vertical supporting plate, a T-shaped sliding groove, a transverse positioning shaft and a transparent baffle. A vertical supporting plate is welded to the middle position in the vertical supporting frame, and two transparent baffles are symmetrically embedded and installed in the space between the vertical supporting plate and the left and right vertical supporting side rods of the vertical supporting frame. When the swing pipe is driven by the hydraulic cylinder to swing up and down for cutting, the swing pipe can drive the two brushing frames to slide left and right oppositely to clean the front faces and the rear faces of the two transparent baffles in real time, so that the two transparent baffles are always kept clean and have certain transparency in the cutting process. The transparent blocking part can be prevented from being easily splashed, polluted and shielded by coal cinder or black water mixed with coal cinder to affect transparency, and workers can conveniently observe the cutting working condition at any time.

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 belongs to the technical field of building materials, and particularly relates to an industrial solid waste ardealite composite material and a preparation method and application thereof.The preparation method of the industrial solid waste ardealite composite material comprises the steps that industrial solid waste ardealite, cement, silica fume, coal cinder, phenolic resin and water are mixed, granulated and dried, and a precursor is obtained; and heating the precursor at 120-140 DEG C for 1-1.5 h to obtain the industrial solid waste phosphogypsum composite material. The industrial solid waste phosphogypsum is converted into the semi-hydrated gypsum powder at a low calcination temperature, the industrial solid waste phosphogypsum composite material obtained through the method is high in hardness, high in strength and good in durability, the technical defect that the phosphogypsum is not environmentally friendly is overcome, and meanwhile the industrial solid waste phosphogypsum composite material has the advantages of being environmentally friendly and low in cost. The industrial solid waste ardealite composite material is applied to the road base.

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 cinder ladle facilitating heat preservation, and belongs to the technical field of cinder ladle heat preservation. Comprising a heat-preservation barrel, a liner is arranged in the heat-preservation barrel, a heat-preservation assembly is arranged in an inner cavity of the side wall of the heat-preservation barrel, a top cover is arranged on the top of the heat-preservation barrel, and an adjusting assembly is arranged on the top of the circumferential outer wall of the heat-preservation barrel. Heat is isolated through expanded perlite and magnesium-chromium slurry, temperature reduction caused by energy loss of the cinder ladle is prevented, heat loss is reduced through the vacuum cavity, temperature is conveniently kept through the heat preservation coating on the other side of the heat insulation plate, so that slag is conveniently processed and used, the slag is prevented from being cooled from the top of the cinder ladle by covering the top cover, and the service life of the cinder ladle is prolonged. A hydraulic cylinder is opened to drive a fixing block to move upwards, so that a top cover moves upwards, a motor is opened to drive a rotating shaft to rotate, the angle of the top cover is adjusted conveniently, the top cover is prevented from blocking slag, and applicability is improved; the cinder ladle top cover is good in heat preservation and heat insulation effect and convenient to machine and use, and the cinder ladle top cover is convenient to install.

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 present invention belongs to the technical field of building materials, and specifically relates to an industrial solid waste phosphogypsum composite material, its preparation method and application. The preparation method of the industrial solid waste phosphogypsum composite material is as follows: Mix industrial solid waste phosphogypsum, cement, microsilica powder, coal cinder, phenolic resin and water, and obtain a precursor through granulation and drying; Heat the precursor at 120°C to 140°C for 1h to 1.5h to obtain the industrial solid waste phosphogypsum composite material. The present invention realizes the transformation of industrial solid waste phosphogypsum into hemihydrate gypsum powder at a relatively low calcination temperature. The industrial solid waste phosphogypsum composite material obtained by the method of the present invention has high hardness, high strength and good durability. While overcoming the non-environmental protection technical defects existing in phosphogypsum, the industrial solid waste phosphogypsum composite material is applied to the road base.

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 discloses a heat exchange assembly of an air pre-heater, which belongs to the technical field of heat exchange of air pre-heaters and comprises an outer frame, partition plates and heat exchange sheets, the outer frame is a three-dimensional frame, the partition plates are arranged on the side wall of the outer frame, a plurality of heat exchange sheets are stacked in the outer frame, and each heat exchange sheet is a large-channel corrugated plate. The rotary air pre-heater has the advantages that the heat exchange assemblies are arranged at the cold end of the rotary air pre-heater in a combined mode, along with operation of the air pre-heater, under the action of the corrugated plate heat exchange pieces with the large channels, the flue gas circulation cross section is large, the wave form is smooth, impurities such as ammonium bisulfate, dust and coal cinder are not prone to being attached and easy to remove in the operation process of the heat exchanger, and the heat exchange efficiency is improved. And the heat exchange surface is not easy to block, the pressure loss cannot rise after long-term operation, the energy consumption is effectively reduced, and the practicability of the heat exchange assembly is greatly improved.

The utility model relates to the technical field of unloaders, in particular to an anti-blocking star-shaped cindervalve which comprises a shell and a gear motor arranged on the left side of the shell, a transmission rod is movably connected to the inner side of the shell through a bearing, blades which are arranged in an inclined mode are fixedly connected to the outer side of the transmission rod, and a lower end cover is fixedly connected to the bottom of the shell. An upper end cover is fixedly connected to the top of the shell, a driven chain wheel is arranged at the front end of the transmission rod, a driving chain wheel is arranged on the front side of the gear motor, a feeding port is formed in the top of the shell, a discharging port is formed in the bottom of the shell, and protruding dustproof covers are arranged at the front end and the rear end of the shell. A high-quality steel plate welding structure is adopted, the blades are high in abrasion resistance, and the transmission shaft and the blades are connected into a whole. The star-shaped cinder valve has the advantages of being stable and reliable in work, even in blanking, light and energy-saving, and due to the fact that a bearing and a speed reducer of the star-shaped cinder valve protrude outwards, dust can be prevented from being squeezed into the bearing, and the phenomenon that large-particle materials are stuck can be avoided.

The utility model relates to the technical field of slag tapping machines, and discloses a steam boiler slag tapping machine which comprises an equipment body and further comprises a cooling mechanism and a dust falling mechanism, the inner wall of the side face of the equipment body is fixedly connected with the side face of the cooling mechanism, the top end of the dust falling mechanism is fixedly connected with the bottom end of the equipment body, and the equipment body comprises a machine shell. The top end of the machine shell is connected with a feeding hopper. Coal cinder falls into the machine shell through the feeding hopper, the servo motor is started to drive the mounting shaft to rotate, the spiral conveying paddle conveys the coal cinder and finally discharges the coal cinder from the discharging hopper, circulating water is introduced through the first connecting pipes on the two sides of the second heat exchange pipe, and the circulating water enters the second heat exchange pipe through the first connecting pipes; the coal cinder cooling device makes contact with coal cinder, takes away heat in the coal cinder for recycling, cools the coal cinder, is beneficial to improving equipment safety, prevents high-temperature coal cinder from hurting operators, and meanwhile reduces energy loss.

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.