408 results about "Honeycomb ceramic" patented technology

The invention discloses a honeycomb ceramic and a preparation method thereof.A composite additive is added into a mixed ceramic raw material, the weight ratio of the mixed ceramic raw material to the composite additive is (30-50): (50-70), and the composite additive comprises 30-54 parts of flaky aluminum oxide, 2-10 parts of nano zinc oxide and 1-5 parts of metal molybdenum particles; the preparation method comprises the steps of ball milling, kneading, refining, extrusion forming, drying and sintering. According to the invention, the raw material formula is optimized, and bauxite is replaced by flaky alumina; beneficial additives, namely nano zinc oxide and metal molybdenum particles, are doped; an original extrusion molding device is used for achieving a layered structure of flaky aluminum oxide, and therefore the shell-imitating pearl layer structure with the layered aluminum oxide as bricks, the metal molybdenum particles as mud and the zinc-aluminum spinel particles as protrusions is built.

The invention belongs to the technical field of honeycomb ceramic wet blank cutting, and discloses a honeycomb ceramic carrier wet blank cutting device which comprises a conveying device, a lifting device is fixedly connected to the conveying device, supporting columns are fixedly connected to the two sides of the top end of the lifting device, and a steel wire is arranged above the two supporting columns in a combined mode. The clamping plates at the two ends are jacked and moved through stress of the hinge plates, then the connected rubber plate rods are driven to synchronously translate, the steel wire is not clamped any more, the steel wire which is passively clamped and limited can keep tight tension all the time, the stability of the steel wire cutting process is guaranteed, and the event that in the prior art, after the steel wire is used for a long time, loosening and insufficient tension are generated is avoided; when the two rubber plate rods do not clamp and limit the steel wire any more, the continuously and passively rotated screw wheel can instantly generate friction force with the contacted steel wire, so that the screw wheel slides in the telescopic scraping disc, the surface of the steel wire is cleaned, blank materials are prevented from being adhered to the steel wire, and an irregular cutting surface is prevented from being caused.

The invention relates to the technical field of heating management, and discloses an energy management method and system for a ceramic heating body of a wireless blower, and the method comprises the steps: obtaining a blower starting instruction, configuring initial heating parameters of a honeycomb ceramic heating module, configuring a related blower function module, starting the heating and blowing work, continuously collecting the posture parameters of the blower, and carrying out the energy management of the ceramic heating body of the wireless blower. The method comprises the following steps of: identifying key working characteristics, matching a historical database, determining an expected working mode, analyzing an alternate heating scheme of a honeycomb ceramic unit, formulating a heating driving scheme, and performing current control according to the driving scheme, so that the heating module reaches the expected heating mode. The heating efficiency and heat management optimization are improved, the working mode is intelligently matched, the service life of the heating body is prolonged, more efficient and comfortable blowing experience is provided, energy consumption is reduced, safety is improved, and the problem that in the prior art, the expected life of a ceramic heating body is short is solved.

The invention discloses a method for manufacturing a high-wear-resistant composite swing hammer head, which comprises the following steps: washing and drying ceramic particles with an oxalic acid solution, uniformly mixing boron carbide ceramic powder and an alcohol adhesive in proportion into a slurry, and drying to remove the alcohol adhesive; then mixing the ceramic particles with NiCrBSi powder and a sodium silicate solution and filling the mixture into a honeycomb mold, taking the mixture out after microwave curing, thereby obtaining a honeycomb ceramic preform with high strength at room temperature, wherein a conical preformed hole is formed on the honeycomb ceramic preform, placing the honeycomb ceramic preform into a casting cavity of a swing hammer head metal mold, and then pouring molten high-chromium cast iron into a runner of the casting mold, wherein the high-chromium cast iron water infiltrates into gaps between ceramic preform particles under high pressure to form a reactive interface, thereby obtaining a high-wear-resistant composite swing hammer head. The method can manufacture a composite swing hammer head with a reactive interface and high wear resistance.

The invention discloses a thermal shock resistant and corrosion resistant honeycomb ceramic and a preparation method thereof. The honeycomb ceramic comprises basic powder and a composite additive, the composite additive comprises samarium oxide and zirconium oxide, wherein the addition amount of the samarium oxide is 1-9 wt% of that of the basic powder, and the addition amount of the zirconium oxide is 1-9 wt% of that of the basic powder. The acid and alkali corrosion resistance of the honeycomb ceramic is improved by adding samarium oxide, meanwhile, the thermal shock resistance of the ceramic is improved by adding zirconium oxide, deformation generated in the sintering process of the ceramic is buffered, and therefore the thermal shock resistant and corrosion resistant honeycomb ceramic is obtained, and the corrosion resistance of the ceramic is synchronously improved through the synergistic interaction effect.

The multifunctional environment-friendly and energy-saving flowerpot comprises a pot body and a tray, a boss is arranged on a bottom layer plate of an inner cavity of the pot body, and a drainage hole is formed in the middle of the boss. One end of the honeycomb ceramic tube is communicated with the inner cavity of the pot body, the other end of the honeycomb ceramic tube penetrates through the drain hole and is flush with the lower surface of the bottom plate of the pot body or is sleeved on the boss, the thickness of the wall of the honeycomb ceramic tube is 30-40% of the diameter, the porosity of the honeycomb ceramic tube is 40-70%, and the honeycomb ceramic tube contains pelelith and chitin. According to the utility model, frequent watering is not needed, soil can always keep moist humidity for growth of the plant bonsai for a long time, water is not accumulated, and hot air generated by water evaporation can be timely discharged when the bonsai is heated at high temperature, so that the bonsai cannot be dried up and burnt when the room temperature rises; therefore, the potted landscape can grow normally for a long time, the pot body is bactericidal and antibacterial, water molecules are refined to be conveniently absorbed by a root system, and the functions of constant temperature, heat preservation, ventilation and the like are achieved.

The invention discloses a preparation method of high-performance cordierite DPF honeycomb ceramic, and belongs to the technical field of honeycomb ceramic carrier preparation. The preparation method comprises the following steps: mixing raw materials; kneading mud; performing extrusion molding; drying and shaping; cutting and firing to obtain a cordierite honeycomb ceramic carrier; and performing boundary dimension processing, film covering, hole dotting, mud scraping and drying to obtain a finished product. According to the invention, aluminum hydroxide is adopted to replace or partially replace aluminum oxide in the formula of the cordierite porous ceramic structure while magnesium hydroxide is used, and the two substances can form a synergistic heat absorption mechanism by virtue of the difference of the aluminum hydroxide and magnesium hydroxide in thermal decomposition temperature, so that the heat absorption efficiency of the cordierite porous ceramic structure is greatly improved in the low-temperature coke discharge stage of a carrier mud blank. Aluminum hydroxide is subjected to a decomposition reaction before magnesium hydroxide, and then magnesium hydroxide is continuously decomposed at a higher temperature, so that the temperature range covered by the whole heat absorption process is greatly widened, the heating rate of the carrier mud blank is effectively slowed down, and thermal shock caused by sudden rising of local temperature is avoided.

The invention discloses preparation of a manganese-cobalt spinel catalyst and application of the manganese-cobalt spinel catalyst in catalytic ozonation of VOCs, and belongs to the technical field of materials. Comprising the following steps: adding manganese salt and cobalt salt into water for ultrasonic dissolution, dipping a honeycomb ceramic substrate into the obtained solution for growth, and taking out the treated honeycomb ceramic substrate after the solution becomes light purple; repeatedly dipping for three times; drying and calcining the honeycomb ceramic substrate subjected to dipping treatment; and soaking the calcined honeycomb ceramic substrate in an acetic acid solution, then blowing away the redundant solution in the pore channels, then soaking the honeycomb ceramic substrate in a lanthanum salt solution, taking out the honeycomb ceramic substrate, continuously blowing away the redundant solution in the pore channels, drying the honeycomb ceramic substrate, and heating and calcining the honeycomb ceramic substrate again to obtain the manganese-cobalt spinel catalyst. The manganese-cobalt spinel catalyst prepared by the method provided by the invention has 100% catalytic decomposition activity to toluene, methanol and propylene at room temperature, and has 100% catalytic decomposition activity to ethyl acetate at 53 DEG C. A test result of further simulating a real environment shows that the catalytic ozonation decomposition efficiency of the manganese-cobalt spinel catalyst to three mixed components of toluene, xylene and ethyl acetate at room temperature reaches 100%.

According to the ceramic particle surface treatment method and the metal-based ceramic composite material provided by the invention, the active substance powder is treated into uniform nano-scale powder, and the strong adsorption function of the nano-powder is utilized, so that the combination of the active substance powder and the ceramic particles in the cold spraying process is firmer, and the combination capacity of molten metal and the ceramic particles is improved. Besides, nano-scale active substance powder is uniformly deposited on the surfaces of ceramic particles by adopting a cold spraying technology, so that the wettability of ceramic and metal is improved, the bonding strength of the nano-scale active substance powder and the ceramic particles is high, infiltration of molten metal and the ceramic particles in the compounding process is facilitated, and the working temperature is lower; in addition, the binder is atomized on the surfaces of the ceramic particles in an atomization mode to manufacture the honeycomb-shaped ceramic prefabricated body, the binder is atomized more uniformly, the strength of the manufactured ceramic prefabricated body is higher, and the overall strength of the prepared metal-based ceramic composite material is improved.

The invention discloses a preparation method of a gasoline car honeycomb ceramic carrier with an ultralow thermal expansion coefficient, and belongs to the technical field of honeycomb ceramic materials. The method comprises the following steps: selecting raw materials; performing pretreatment; mixing the materials; kneading mud; performing extrusion molding; and cutting and firing to obtain the cordierite honeycomb ceramic carrier. A magnesium source in talc and a part of an aluminum source in alpha-aluminum oxide are replaced by the monohydrate boehmite and the magnesium oxide which are higher in reaction activity, the sol is formed through a complexation reaction with citric acid, then the sol is mixed with silicon dioxide and aluminum oxide particles, the reaction activity of a solid-phase reaction is improved at the same firing temperature, and the solid-phase reaction time is shortened. The thermal expansion coefficient of the cordierite honeycomb ceramic carrier is effectively reduced, and the thermal shock resistance requirement of gasoline cars in the national sixth emission standard can be met.

The invention relates to hole plugging slurry of a wall flow type honeycomb ceramic filter body and a preparation method of the hole plugging slurry. The hole plugging slurry comprises inorganic powder and an additive, the additives comprise the following components in percentage by mass of the inorganic powder: 0.1-1% of an organic binder, 0.3-1% of an anti-sagging agent, 0.05-0.2% of a flatting agent and 0.3-2% of a water reducing agent. The hole plugging slurry provided by the invention has good tiling property and slurry hanging property, so that the scraped or pressed hole plugging slurry is quickly tiled to the hole wall surface when entering the honeycomb ceramic hole channel, the hole wall is completely and compactly filled with the slurry in the process of advancing in the hole, the bonding strength between the slurry and the hole wall is improved, and the hole plugging quality is improved. And the problem of peeling or local light leakage in the drying or sintering process is avoided.

The invention discloses a metal composite oxide cordierite monolithic catalyst for removing short-chain hydrocarbons as well as a preparation method and application of the metal composite oxide cordierite monolithic catalyst. The method comprises the following steps: putting an active metal source precursor into deionized water, performing ultrasonic dispersion, and stirring until the active metal source precursor is completely dissolved to form a stable precursor solution; dropwise adding an ammonia water solution into the precursor solution in the stirring process until precipitate appears; and washing with deionized water, drying and calcining to obtain the transition metal composite oxide. The preparation method comprises the following steps: adding a transition metal composite oxide and a binder into deionized water, stirring, and grinding into slurry; adding noble metal into the slurry, and uniformly stirring to obtain coating slurry; the honeycomb ceramic cordierite carrier is subjected to soaking pretreatment in acid, drying and calcining. And soaking the honeycomb ceramic cordierite carrier in the coating slurry, taking out the honeycomb ceramic cordierite carrier, purging, drying, and calcining to obtain the catalyst. The catalyst prepared by the method shows excellent multi-component short-chain hydrocarbon catalytic oxidation activity and stability.

The invention provides a high-temperature-resistant primer and application thereof, and a marking composition for honeycomb ceramics, and relates to the technical field of honeycomb ceramic surface coatings, the high-temperature-resistant primer comprises the following components by mass: 35%-50% of colored particles, 3%-5% of an emulsifier, 5%-15% of epoxy resin, 5%-10% of a thickener, and 15%-20% of an organic solvent; wherein the colored particles include metal alkoxide particles; the primer is cured on the surface of the honeycomb ceramic to form a coating, and the identification information is marked on the coating, so that a clear and stable identification effect of the identification information can still be kept under a high-temperature condition, and the technical problem that the identification information is difficult to clearly display on a honeycomb ceramic primer layer in a high-temperature environment in the prior art is solved.

The invention belongs to the technical field of ceramic heat accumulators, and relates to an RT0 combined honeycomb ceramic heat accumulator and a production process thereof. Comprising the following steps: mixing aluminum oxide powder, diatomite, expanded perlite, rare earth oxide, carbon nanofibers, kaolin, quartz sand, titanium dioxide, boron nitride powder, silicon carbide powder, zirconium oxide powder, aluminum oxide fibers, glass powder, yttrium-stabilized zirconium oxide, aluminum oxide hollow spheres and aluminum borate whiskers; drying the mixed material, finely grinding the dried material by using a ball mill, and screening by using a screen; the sieved mixture is put into mixing equipment, 2% of plasticizer and 1% of preservative are added for mixing, and mixed pug is obtained; and standing the mixed pug to obtain a blank. The service life of the heat accumulator is prolonged, and the heat exchange efficiency of the heat accumulator is improved.

The invention discloses a honeycomb demercuration catalyst prepared from a waste SCR catalyst and a preparation method of the honeycomb demercuration catalyst, and belongs to the technical field of catalysts. The waste SCR catalyst is washed with water, dried and then placed in a zirconium oxide ball milling tank to be ground into powder, and waste SCR catalyst powder is obtained. Putting the waste SCR catalyst powder into a composite acid treatment agent, cleaning, and filtering to obtain filtrate and acid-treated waste SCR catalyst powder. Mixing the acid-treated waste SCR catalyst powder, a vanadium salt, a tungsten salt, an active auxiliary agent and deionized water to form slurry, drying the slurry, roasting in honeycomb ceramic, and cooling to room temperature to obtain the honeycomb mercury removal catalyst. The honeycomb demercuration catalyst prepared by the invention has better mechanical strength and demercuration performance.

The invention belongs to the technical field of post-treatment of exhaust gas discharged by a mobile source, and particularly relates to a monolithic catalyst as well as a preparation method and application thereof. The preparation method of the catalyst comprises the following steps: fully mixing the raw materials, namely the molecular sieve, the soluble metal salt, the deionized water, the silane coupling agent, the zirconium silica sol, the dispersing agent, the deionized water and the pH regulator, and then putting the mixture into a circulating type stirring ball mill for one-step grinding and pulping; soaking a honeycomb ceramic carrier in the prepared slurry, repeating for multiple times, and then drying and roasting at high temperature; and placing the roasted monolithic catalyst in an activation atmosphere, and carrying out high-temperature activation treatment. Active metal elements in the prepared monolithic catalyst are uniformly distributed, the stability and activity of a catalytic coating are enhanced, and the monolithic catalyst can be widely applied to catalytic treatment of waste gas discharged by moving sources such as diesel vehicles and gasoline vehicles, and has important environmental protection significance and huge economic value.

The invention provides a low-Rh high-efficiency three-way catalyst and a preparation method thereof. A cordierite honeycomb ceramic carrier is used as a carrier; the upper half area of the gas inlet end of the carrier is provided with a rhodium-containing coating, and the lower half area of the gas inlet end of the carrier is provided with a palladium-containing coating; a platinum-containing coating is arranged at the gas outlet end of the carrier; the rhodium-containing coating comprises rhodium, a cerium oxide nanowire and a cerium-zirconium-aluminum oxide; the palladium-containing coating comprises palladium, lanthanum modified aluminum oxide and cerium zirconium oxide; the platinum-containing coating comprises platinum and lanthanum modified gamma-aluminum oxide. Precious metals rhodium, palladium and platinum are coated on a cordierite honeycomb ceramic carrier in a partitioned manner, and then noble metal active components are loaded on a specific type of carrier, so that the thermal stability of Pt is enhanced, the catalytic activity of Pt and Rh on NOx is improved, and the catalytic activity of Pt and Pd on CO and CH4 is improved; the catalyst is low in Rh content, has a good conversion effect on CO, CH4 and NOx, and is low in CH4 ignition temperature and good in durability.

The invention discloses a high-density low-expansion multiphase honeycomb ceramic and a preparation method thereof, a pre-sintering composite additive is added into a mixed ceramic raw material, the weight of the pre-sintering composite additive is 5-9wt% of that of the mixed ceramic raw material, and the pre-sintering composite additive is prepared by mixing yttrium oxide and aluminum titanate according to the mass ratio of 1: (5-7), and then adding the mixed material into the mixed ceramic raw material to prepare the high-density low-expansion multiphase honeycomb ceramic. And pre-sintering at 1350-1600 DEG C, and grinding to obtain the product. According to the invention, the pre-sintered composite additive is added into the mixed ceramic raw material, so that the prepared multiphase honeycomb ceramic has high density and low expansion coefficient at the same time, meanwhile, cracking is avoided, and the sintering temperature is reduced.

The utility model relates to a steel sintering machine tail gas CO catalytic purification system which comprises an exhaust pipeline, and a front-stage purification unit and a rear-stage catalysis unit are sequentially installed in the exhaust pipeline. The front-stage purification unit is of a wall flow type honeycomb ceramic structure and comprises a front-stage ceramic shell. According to the CO catalytic purification system for the tail gas of the steel sintering machine disclosed by the utility model, impurities such as ash, carbon black, SO2 and halogen in the tail gas of the sintering machine are effectively intercepted by arranging the pre-stage purification unit with a wall-flow honeycomb ceramic structure, so that the tail gas is purified to a certain extent; the poisoning influence of the impurities on a CO catalytic oxidation active coating in a rear-stage catalytic unit is avoided, and the long-term efficient catalytic oxidation activity of the catalytic unit on CO is guaranteed. Meanwhile, the utility model further designs an in-situ regeneration control system of the preceding-stage purification unit, so that the exhaust back pressure increase of the preceding-stage purification unit is effectively controlled, and the long-term stable operation of the whole catalytic purification system is ensured.

The invention relates to a catalyst for treating nitrogen-containing VOCs and application thereof in treatment of nitrogen-containing VOCs, the main preparation steps are as follows: a carrier component containing Si, Al and optional Mg, a cross-linking agent, a rare earth oxide and water are put in a ball mill for ball milling to prepare coating slurry, the coating slurry is coated in cordierite honeycomb ceramic channels by a vacuum coating method, and the catalyst is prepared. And then the coated honeycomb ceramic is quickly dried. Preparing a metal nitrate solution as an impregnation liquid, impregnating the nitrate on the dried honeycomb ceramic, aging, quickly drying the impregnated honeycomb ceramic, and roasting the dried honeycomb ceramic for a certain time to obtain the catalyst. According to the preparation method disclosed by the invention, the catalyst for treating the nitrogenous VOCs, which is formed in a honeycomb manner, low in preparation cost, relatively high in N2 selectivity, good in catalytic oxidation effect and high in stability, can be produced, so that the problems of long technological process, short service life of the catalyst, secondary pollution of NOx and the like in the conventional process for treating the nitrogenous VOCs are solved.

The invention discloses a treatment method of electroplating wastewater, and belongs to the technical field of electroplating wastewater treatment. The process comprises the following steps: electrically adjusting the pH value of the electroplating wastewater to 2.5-4.0, adding ferrite, adopting a Ti / PbO2 anode and a graphite cathode, controlling the current density to 15-30mA / cm, introducing air, reacting for 40-80 minutes, and adjusting the pH value to 6.0-7.0 after the reaction; introducing the wastewater into a chelating resin column, wherein the chelating resin is an amino phosphonic acid type or iminodiacetic acid type; the method comprises the following steps of: introducing into a built-in filter column, loading two layers of recrystallized silicon carbide honeycomb ceramic membranes in the filter column in parallel, performing cross-flow filtration under the conditions that the operation pressure is 0.8-2.0 MPa, the temperature is 25-40 DEG C and the cross-flow velocity is 1.5-3m / s, and collecting permeate; the permeate liquid is used for backwashing every 8-12 hours of operation. According to the method, heavy metal ions in the electroplating wastewater can be effectively removed, and the treatment efficiency of the electroplating wastewater is improved.

The invention relates to the technical field of air pollution control, in particular to an air pollution denitration and desulfurization tail gas purification method which comprises the following steps: rotational flow spray desulfurization (adopting nanoscale composite absorbent slurry to efficiently absorb SO2 and remove particulate matters in a rotational flow reactor), two-stage catalytic denitration (using a nano-catalyst to promote NOx reduction in a low-temperature region, and using a high-temperature catalyst to remove the particulate matters in a low-temperature region). In the high-temperature area, a vanadium-tungsten-titanium-based catalyst is loaded through a novel honeycomb ceramic carrier to strengthen the reaction), deep collaborative purification is carried out (residual pollutants and aerosol are further removed by utilizing electrostatic precipitation and oxidative adsorption coupling), and an intelligent regulation and control system is used for optimizing the ratio of an absorbent, the temperature of the catalyst and flow velocity parameters in real time. According to the method, the problems of catalyst poisoning, high energy consumption and insufficient treatment efficiency in a traditional process are solved through a nano material modified absorbent, a temperature gradient catalytic reaction and a multi-pollutant synergistic removal mechanism. The desulfurization efficiency of the system is greater than or equal to 98%, the denitration efficiency is greater than or equal to 97%, the particulate matter emission is less than or equal to 10mg / m < 3 >, the SO2 is less than or equal to 35mg / m < 3 >, and the NOx is less than or equal to 50mg / m < 3 >

The invention discloses a method for improving the firing yield of cordierite DPF honeycomb ceramics, and belongs to the technical field of honeycomb ceramic carrier preparation. The preparation method comprises the following steps: mixing raw materials; kneading mud; performing extrusion molding; drying and shaping; cutting and firing to obtain a cordierite honeycomb ceramic carrier; and performing boundary dimension processing, film covering, hole dotting, mud scraping and drying to obtain a finished product. According to the invention, magnesium hydroxide is used for replacing part or all of talc in a traditional formula of a cordierite porous ceramic structural body, and magnesium hydroxide absorbs a large amount of heat when heated, so that rapid temperature rise of a DPF carrier mud blank caused in an organic matter coke discharge process is slowed down, the temperature gradient of the DPF carrier mud blank in a firing process is reduced, and the sintering temperature of the DPF carrier mud blank is reduced. Therefore, the generation of mud blank cracks is inhibited in the firing process, and the firing yield is improved.

The invention discloses a refrigerating and humidifying device applied to a mushroom house. The refrigerating and humidifying device comprises a shell, a surface air cooler, a humidifying device body, a fan and an air duct system. The surface air cooler, the humidifying device, the fan and the air duct system are located in the shell, and an inlet is formed in the position, close to the humidifying device, of the shell. The humidifying device comprises a honeycomb ceramic combination body and a water spraying device arranged towards the air inlet end face of the honeycomb ceramic combination body, and the water spraying device intermittently sprays water to the honeycomb ceramic combination body so that the honeycomb ceramic combination body can be kept wet. The air channel A is provided with a proportional valve a, the air channel B is provided with a proportional valve b, and the proportional valve a and the proportional valve b are in linkage reverse control and used for adjusting the proportion of the air volume flowing through the air channel A and the air volume flowing through the air channel B and keeping the sum of the air volume flowing through the air channel A and the air volume flowing through the air channel B constant. And when the temperature is reduced, the humidity is controlled at the same time. Energy waste is avoided, and efficiency and energy conservation are achieved. The invention further discloses an edible mushroom house environment control system.

The utility model relates to a cleaning and flushing device for RTO equipment containing organic silicon waste gas, and belongs to the technical field of environment-friendly treatment equipment. The RTO heat storage chamber comprises an RTO heat storage chamber body, the RTO heat storage chamber body structurally comprises an outer plate structure and a heat preservation layer, and a heat storage body in the RTO heat storage chamber body comprises a plurality of layers of honeycomb ceramic bodies and a single-layer saddle-shaped ceramic body; a washing frame plate is arranged in the heat preservation layer in a wrapping mode, and the washing frame plate completely wraps the heat preservation layer and the bottom of the RTO heat storage chamber. A layering unit is further assembled on the top of the washing frame plate, the honeycomb ceramic body is located below the layering unit, and the saddle-shaped ceramic body is located above the layering unit. The washing frame plate and the layering units are assembled and connected through the connecting notches; reinforcing units used for guaranteeing the strength of the frame are arranged on the flushing frame plate in the vertical direction in a matched mode. According to the device, accumulated silicon powder in the device can be cleaned and removed, and meanwhile, the heat storage chamber is prevented from being damaged.

The utility model relates to the technical field of copper strip oxidation treatment, in particular to a special-shaped copper strip surface oxide skin treatment device. Comprising a working box body, a control panel is arranged on one side wall of the working box body, a liquid storage box is arranged in the working box body, a timer is arranged on the surface of one side of a supporting panel, a limiting sliding groove is formed in the surface of one side of the supporting panel, a threaded rod is arranged in the limiting sliding groove, and a movable sliding block is arranged in the limiting sliding groove. A ceramic placing box is arranged above the working box body, a honeycomb ceramic filter plate is embedded into the bottom of the ceramic placing box, a driving motor is arranged at the top of a supporting panel, two groups of movable sliding grooves are formed in the bottom end of the interior of the working box body, and two groups of movable sliding strips are arranged at the bottom end of a liquid storage box. According to the embodiment, the surface treatment quality of the copper strip is improved while the rust remover or the acid solution is prevented from being over-reacted with the copper strip.

The utility model discloses a wall flow type honeycomb ceramic green body with high filtering efficiency. The wall flow type honeycomb ceramic green body comprises a green body, the blank body comprises a first filter body, a second filter body and a third filter body which are sequentially distributed from left to right, a first air inlet hole is formed in the left side face of the first filter body, a first air outlet hole is formed in the right side face of the first filter body, a second air inlet hole is formed in the left side face of the second filter body, and a second air outlet hole is formed in the right side face of the third filter body; according to the wall-flow type honeycomb ceramic green body with the high filtering efficiency, carbon particles in waste gas are filtered in a multi-stage mode, the filtering effect of the wall-flow type honeycomb ceramic green body is improved, and the wall-flow type honeycomb ceramic green body with the high filtering efficiency has the advantages of being high in filtering efficiency, high in practicability and high in practicability. The situation that the small filter holes are blocked by large particles is avoided, it is guaranteed that waste gas smoothly circulates in the wall-flow type honeycomb ceramic body, and the filtering efficiency of the wall-flow type honeycomb ceramic body is high.

The invention relates to the field of catalysts. The invention relates to a catalyst for catalytic oxidation of carbon monoxide in industrial sulfur-containing flue gas. A carrier is a cordierite honeycomb ceramic carrier coated with activated aluminum oxide (Al2O3), silicon oxide (SiO2) or titanium oxide (TiO2), or a honeycomb carrier with titanium oxide as a skeleton; the noble metal active component is selected from one or a combination of more of palladium (Pd), platinum (Pt) and rhodium (Rh), the total loading capacity accounts for 0.05-0.4 wt% of the mass of the carrier, and the noble metal component is loaded on the surface layer of the carrier at the depth of 10-300 microns and is of an eggshell type distribution structure; the cocatalyst component is selected from one or a combination of more of vanadium oxide (VO), tungsten oxide (WO), cerium oxide (CeO), molybdenum oxide (MoO) and lanthanum oxide (La2O3) and is uniformly distributed on the carrier. Unification of activity, stability and economical efficiency of the catalyst is achieved, the problems that a catalytic oxidation catalyst is prone to inactivation, low in activity and high in cost in complex sulfur-containing flue gas are solved, and the industrial application value is remarkable.

The invention discloses toughened honeycomb ceramic as well as a preparation method and application thereof. The toughened honeycomb ceramic is prepared by mixing, kneading, refining, drying and sintering a mixed ceramic raw material and an additive, the additive accounts for 4-12wt% of the weight of the mixed ceramic raw material, and the additive comprises yttrium-stabilized zirconia and nickel-titanium memory alloy in a mass ratio of (1-3): (1-3). According to the method, plastic deformation of the memory alloy is induced by utilizing the volume change of the instantaneous phase change of the yttrium-stabilized zirconia when the crack is generated, and the damage accumulated in the ceramic at the low-temperature stage can be partially recovered by utilizing the memory effect and the hyperelastic effect of the memory alloy. And a dual protection mechanism of instantaneous energy consumption and hysteresis recovery is constructed, and the damage resistance and toughness of the material are remarkably improved.

The high-precision constant-speed honeycomb ceramic extruding machine comprises a main machine, an automatic material conveying mechanism, a segmented material cutting mechanism, a hydraulic station and an automatic control device, the main machine comprises an upper cross beam, a material cavity beam plate and stand columns, a hydraulic plunger is fixedly arranged on the upper cross beam, a main column rod and an ejector rod are arranged in the hydraulic plunger, and the lower end of the main column rod is connected with a movable mold frame; the lower end of the ejector rod penetrates through the movable die frame and is fixedly provided with a pressing head, a pressing sleeve is arranged between the vacuum sealing plate and the ejector rod, a die sleeve assembly is fixedly arranged on the material cavity beam plate, the vacuum sealing plate and the upper end face of the die sleeve assembly are tightly sealed, and a material cavity in the die sleeve assembly is vacuum. The pressing head can stretch into the cavity material in a sealed mode and press pug in the material cavity out of the die sleeve assembly. The four-column type honeycomb ceramic extruder is high in precision, large in pressure, high in vacuum degree, constant in extrusion speed and good in sealing ring effect, the production efficiency can be improved, the production cost can be reduced, and the product quality can be improved.