43 results about "Dusting powders" patented technology

The invention provides a long-service-life magnesium-aluminum-carbon ladle wall brick for a steel ladle and a preparation method of the long-service-life magnesium-aluminum-carbon ladle wall brick. The long-service-life magnesium-aluminum-carbon ladle wall brick comprises the following raw materials in percentage by mass: 29%-63% of waste magnesium-aluminum-carbon bricks, 10%-20% of waste magnesium-carbon bricks, 10%-25% of fused magnesite, 2%-5% of white corundum, 3%-5% of alpha-alumina micro powder, 3% of liquid phenolic resin, 1%-3% of fused magnesite dust removal powder, 0.1%-3% of a CeSi2-SiC multiphase material and 1%-3% of high-temperature asphalt. And 1%-5% of graphite. The long-life magnesium-aluminum-carbon ladle wall brick prepared by the method has the advantages of favorable oxidation resistance, favorable molten steel scouring resistance, high thermal shock resistance, long service life and excellent use effect.

The invention discloses a low-carbon energy-saving superfine grinding system for nut powder processing, which relates to the technical field of nut processing equipment and comprises seven modules: a raw material pretreatment module is used for removing impurities through bubble cleaning and adjusting time through waste heat drying; the multi-stage superfine grinding module adopts three vertical series-connection units and is provided with a flow guide channel and a heat preservation grinding cavity; the low-carbon energy-saving driving module takes a high-efficiency motor as power, and can adjust the rotating speed and recycle kinetic energy to store electricity; the intelligent grading screening module integrates airflow and vibration screening, and substandard particles flow back and are reground; the waste heat recycling module absorbs grinding waste heat for drying; the intelligent control system collects parameters through a sensor and supports operation monitoring; and the dust recovery and purification module is subjected to two-stage dust removal, dust backflow and peculiar smell removal. The low-carbon and energy-saving performance is enhanced, energy consumption is greatly reduced through waste heat and energy recovery, the particle size uniformity of products is improved through multi-stage grinding and precise classification, and the nut powder production requirements of different scales are met.

The utility model discloses an agglomerated stone sawdust powder activating and drying device which comprises a spiral drying box, a spiral material conveying copper pipe is arranged in the spiral drying box, the feeding end of the spiral material conveying copper pipe is connected with a pressurizing pump in a penetrating mode, and the pressurizing pump is arranged in the spiral drying box and used for pressurizing and rapidly conveying materials. The agglomerated stone sawdust powder enters the spiral conveying copper pipe through the discharging box to be conveyed in a spiral conveying mode, and the agglomerated stone sawdust powder in the conveying process heats the spiral conveying copper pipe through high temperature emitted by the circular heating plate of a cylinder structure. The heating speed is high, the agglomerated stone sawdust powder is rapidly conveyed in a pressurizing mode, the agglomerated stone sawdust powder in spiral conveying is always heated and dried in a moving state, and therefore the agglomerated stone sawdust powder is evenly heated and dried in the moving process. Further, the agglomerated stone sawdust powder continuously moves, the moisture is reduced, and the problem that the agglomerated stone sawdust powder adheres to the inner wall of a pipeline or discharged materials are stacked and cannot be thoroughly dried is solved.

The utility model discloses a material processing drilling machine for bullet trains, which belongs to the technical field of drilling machines and comprises a supporting mechanism, a drilling mechanism, a clamping mechanism and a dust collection mechanism. The drilling device is novel in design and ingenious in device, in the drilling process, a dust suction pump is started, dust powder generated during drilling is sucked into an annular groove in a dustproof cover through the dust suction pump and then conveyed to a discharging pipe through an inlet pipe, the dust powder enters a dust collecting box, gas enters the dust collecting box and then is discharged through a filtering hole and a through hole, and the dust collecting box is used for collecting dust. The drilling machine has the capability of collecting the dust and the powder, and the dust and the powder are prevented from polluting air and the surrounding environment of the drilling machine, so that the drilling machine is comprehensively protected during machining, and the dust, the powder and chippings generated by the drilling machine are prevented from splashing and hurting a human body; and long-time continuous work is facilitated, and the practicability of the device is greatly improved.

The utility model provides a dust removal crusher for producing a fixing agent, which relates to the technical field of fixing agent production and processing and comprises a fixing frame, a crushing tank positioned on the fixing frame, a feed port and a discharge port positioned on the crushing tank, a crushing component positioned at one end of the crushing tank, and a cleaning component positioned at the other end of the crushing tank, the dust falling assembly is positioned on the crushing tank and is matched with the cleaning assembly; according to the device, the crushing assembly, the cleaning assembly and the dust falling assembly are added to be matched, so that the fixing agent production, processing and crushing are more accurate, the residual fixing agent raw materials on the inner wall of the crushing tank can be effectively cleaned, the influence on the subsequent production and processing of the fixing agent is avoided, and the production efficiency is improved. And meanwhile, dust generated during production and processing of the fixing agent is prevented from being directly discharged, the dust generated during production and processing of the fixing agent can be effectively treated, and it is ensured that the production and processing environment of the fixing agent can reach the standard.

The invention provides a luxury printing surface treatment device and method, and relates to the field of stone surface treatment. The luxury stone printing surface treatment device comprises a conveying belt and further comprises a dust removal and adsorption assembly arranged above the conveying belt and a dust collection assembly arranged below the conveying belt, and the dust removal and adsorption assembly comprises a closed cover shell, a floating dust assembly and a two-way dust suction assembly, the floating ash assembly is used for cleaning the surface of the stone and taking up dust, and the two-way dust suction assembly sucks air in a one-way mode through the upper portion of the closed cover shell and sucks floating ash away. According to the luxury stone printing surface treatment device and method, the dust removal adsorption assembly is arranged, floating dust on the stone surface can be further removed through sweeping and wind power of the floating dust assembly, the two-way dust suction assembly is closer to the stone surface, the treatment effect is better, water-containing dust can be collected, and therefore gas passing through the negative pressure air exhauster basically does not contain dust, and the dust removal effect is good. The human health of operators can be effectively protected, and the purchase cost of the filter is reduced.

The utility model provides a small flue gas amount cooling, dedusting and deacidifying device which comprises a bag-type dust collector, a spray tower, an induced draft fan and an exhaust pipe which are connected in sequence, and is characterized by further comprising a cooling and dedusting device, the input end of the cooling and dedusting device is used for receiving flue gas, and the output end of the cooling and dedusting device is connected with the bag-type dust collector; the flue gas which is cooled by the cooling dust removal device and subjected to primary dust removal is input into the bag-type dust remover to be subjected to secondary dust removal, the cooling dust removal device is additionally arranged, the flue gas which is cooled by the cooling dust removal device and subjected to primary dust removal is input into the bag-type dust remover to be subjected to secondary dust removal, and the dust removal effect is good through two times of dust removal; meanwhile, dust is preliminarily separated through the cooling dust removal device, and the amount of dust entering the bag-type dust remover is reduced, so that the dust removal efficiency of the bag-type dust remover is improved, and the service life of the bag-type dust remover is prolonged.

The invention discloses a preparation system and a preparation method of thick-slurry-method slice slurry for heating cigarettes, and the preparation system of the thick-slurry-method slice slurry for heating the cigarettes comprises at least one of a tobacco shred processing device and a slice powder processing device, a process water feeding device, a primary crushing device, a wood pulp processing device and a secondary crushing device; wherein the tobacco shred processing device is used for forming a material I, the shred processing device is used for forming a material II, the primary crushing device is used for mixing the material I and / or the material II and process water and performing wet crushing to form a material III, and the wood pulp processing device is used for forming a material IV; and the second-stage crushing device is used for mixing the material III and the material IV and grinding the mixture into a material V. Tobacco raw materials are crushed through a wet method, the crushing efficiency is high, the crushing effect is good, the tobacco powder yield is high, the quality of finished pulp is improved, dust removal and dust explosion-proof equipment is not needed, clean production is conveniently achieved, and the cost is reduced.

The invention provides a preparation method of dough wrappers, which comprises the following steps: (1) freezing: freezing dough or dough wadding until the central temperature of the dough or the dough wadding is-2 DEG C to-8 DEG C, preferably-3 DEG C to-7 DEG C, and preferably-5 DEG C; and (2) calendaring: calendaring the dough or the floc obtained in the step (1) to obtain the wrapper. According to the method, the cold storage treatment of placing for 2-4 hours at the temperature of 2-12 DEG C is combined, and the flour puff accounting for 1%-2% of the weight of the dough or the flour wadding is scattered, so that cold storage or frozen non-fermented flour products, particularly frozen dumplings, which are completely free of blistering can be obtained on the premise of not using additives.

The utility model discloses a preparation system of thick-slurry-method slice slurry for heating cigarettes. The preparation system comprises at least one of a tobacco shred processing device and a slice powder processing device, a process water feeding device, a first-stage smashing device, a wood pulp processing device and a second-stage smashing device. Wherein the tobacco shred processing device is used for forming a material I, the shred processing device is used for forming a material II, the primary crushing device is used for mixing the material I and / or the material II and process water and performing wet crushing to form a material III, and the wood pulp processing device is used for forming a material IV; and the second-stage crushing device is used for mixing the material III and the material IV and grinding the mixture into a material V. Tobacco raw materials are crushed through a wet method, the crushing efficiency is high, the crushing effect is good, the tobacco powder yield is high, the quality of finished pulp is improved, dust removal and dust explosion-proof equipment is not needed, clean production is conveniently achieved, and the cost is reduced.

This utility model belongs to the field of waste gas treatment technology, specifically disclosing a black adsorption cascade purification system. The system includes a flue gas duct, a primary turbulent acceleration unit, a primary reaction zone, a secondary turbulent acceleration unit, a secondary reaction zone, a bag filter, and a circulation mechanism. The flue gas sequentially passes through the primary turbulent acceleration unit, mixes with used powder, and enters the primary reaction zone. It then passes through the secondary turbulent acceleration unit, mixes with fresh powder, and enters the secondary reaction zone. Finally, the bag filter removes particulate matter. The bag filter has multiple collection chambers. Some collection chambers are connected to a circulating dust powder distribution device via a circulating dust powder feeding device, returning the adsorbent-active used powder to the primary reaction zone. The remaining collection chambers are connected to a by-product chamber. A rotary feeder is installed in the circulating dust powder distribution device to control the quantitative return of used powder. This device has a compact structure, high adsorption efficiency, and high dust powder utilization rate, making it suitable for the efficient purification of flue gas from anode roasting in the carbon industry.

The invention provides powder for additive manufacturing, which comprises metal powder and a bonding agent, the bonding agent is a flexible bonding agent, the bonding agent is a non-white paste lipid substance, and the bonding agent and the metal powder are mixed in proportion so that the metal powder is bonded by the bonding agent; the temperature of the metal powder melted by the laser at high temperature is T0, the boiling point of the adhesive is T1, and T1 is smaller than or equal to T0, so that the adhesive is vaporized in the melting process of the metal powder, the metal particles are bonded by the adhesive, higher binding force exists between the powder particles, the capability of resisting to being blown away by airflow in a wind field is higher, pollution caused by flying dust powder is reduced, and the service life of the metal powder is prolonged. The metal powder bed can be provided with a draught fan with large wind power to blow splashing particles and smoke away from the printing area, the quality of the generated metal film belt can be improved, and the thickness of the metal film belt is more uniform.

The utility model discloses a double-clamping-position laser marking machine which comprises an operation table, a marking plate and a blocking shell, in the using process of the double-clamping-position laser marking machine, when a vertical telescopic rod part moves along the interior of a sliding way to be close to a machining workpiece installed on the surface of the marking plate, continuous output of a linear moving air cylinder is stopped; and then laser engraving marking of the laser marking head is started, after the marking process is started, in order to solve the problem that smoke dust in the internal area of the blocking shell excessively spreads outwards, external air can be injected into the air inlet hole through the air storage bin again, and smoke dust powder generated by airflow wrapping enters the air suction hole. And meanwhile, part of air can enter from the marking plate area through the adjusting holes, so that the air quantity entering the air suction holes is rapidly increased, the rapid dust discharging function is further improved, and the working environment of machine personnel is further guaranteed.

The utility model discloses a sintering ore fuel dust conveying and recycling system, which belongs to the technical field of steel smelting equipment and comprises a fuel feeding system, a fuel screening system, a sintering fuel conveying belt, a dust remover, a dust collecting cover and a feeding air conveying pipeline. The dust remover is provided with an air inlet and a powder outlet, and the air inlet is used for inputting air with rubber powder dust; the number of the dust collection covers is two, the two dust collection covers are arranged above the fuel feeding system and the fuel screening system respectively, and the dust collection covers communicate with an air inlet of the dust remover through dust collection air supply pipelines. One end of the feeding air conveying pipeline is connected with a powder discharging port of the dust remover, the other end of the feeding air conveying pipeline is arranged above the sintering fuel conveying belt, and the feeding air conveying pipeline is used for conveying rubber powder dust discharged by the dust collecting cover to the sintering fuel conveying belt. The sinter fuel dust conveying and recycling system has the advantages of improving fuel benefits through resource recycling, saving cost, being environmentally friendly, flexible in operation, innovative in technology and the like.

The utility model discloses a low-dust powder screening device for cosmetic production, which comprises a screening machine body, a feed hopper and a dust hood, the upper end face of the screening machine body is provided with a support frame through a support rod, the bottom wall of the support frame is rotatably provided with a stirring shaft in the feed hopper, the support frame is provided with a power mechanism connected with the stirring shaft, and the power mechanism is connected with the stirring shaft. A plurality of stirring rods are arranged on the outer wall of the stirring shaft, the dust suction cover is installed on the screening machine body through a fixing mechanism, a round opening corresponding to the dust suction cover is formed in the upper end face of the screening machine body, and a rotating ring is arranged between the round opening and the dust suction cover. Through the arrangement of the feeding hopper, the stirring shaft, the stirring rod, the dust suction hood, the protective net, the scraper blade and the like, screening of powdery cosmetic materials is achieved through the components, discharging operation of dust generated in the screening process is achieved, cleaning operation of meshes of the protective net on the dust suction hood is achieved, and the functionality and practicability of the equipment are improved.

The invention belongs to the technical field of food processing, and discloses a production process of coarse particle tomato powder. The process comprises the steps of feeding, material heating, conveying and filtering, high-pressure atomization, spray drying, fluidized bed cooling, material mixing, screening and packaging. The tomato sauce with the solid content of 36%-38% and the viscosity of 7-8 cm / 30 s is adopted as a raw material, and key process parameters such as the preheating temperature, atomization parameters (the aperture of a spraying piece is 1.4-2.0 mm, and the pressure is 10-20 MPa), the fluidized bed cooling temperature (20-25 DEG C) and the like are strictly controlled, so that the tomato sauce with the solid content of 36%-38% and the viscosity of 7-8 cm / 30 s is prepared. The prepared coarse tomato powder is high in lycopene content (more than or equal to 150mg / 100g), low in moisture content (less than or equal to 3.5%), uniform in particles, small in amount of fine powder below 120 meshes, rich in flavor and good in solubility and dispersity, and is suitable for the industrial fields of high-end foods such as soup bases, dusting powder, solid beverages and the like. The method is stable in process and suitable for large-scale production.

The utility model relates to the technical field of white corundum processing equipment, in particular to a briquetting device for reprocessing white corundum smelting collected dust powder, which comprises a pressing groove, a white corundum block discharge port is arranged on the right side of the pressing groove, a sliding plate is fixedly mounted on the side edge of the white corundum block discharge port, and a valve plate mechanism is arranged on the upper side of the white corundum block discharge port. The valve plate mechanism comprises an installation sliding groove, a valve plate and an electric motor, the installation sliding groove is formed above the white corundum block discharging port, and the valve plate is installed on the inner side of the installation sliding groove in a sliding mode. According to the utility model, the pressure sensor is arranged between the hydraulic rod and the pressing block, so that the controller can accurately control the output pressure value of the pressing block, the compaction degree of slurry is reasonably controlled, the phenomenon that a formed plate is loose due to insufficient pressure degree is avoided, and the practicability of the device is improved; in addition, the machining process is controlled by the controller, the automation degree is high, the labor cost is saved, and the production efficiency is improved.

The utility model relates to the technical field of agricultural machinery, in particular to a crushing and packing machine utilizing negative pressure to remove dust, which comprises a bottom plate, four uniformly distributed hydraulic cylinders are mounted on the upper end face of the bottom plate, a mounting plate is mounted at the output ends of the four hydraulic cylinders, and a crushing shell is connected to the upper end face of the mounting plate in a penetrating manner. The lower end face of the smashing shell communicates with a discharging pipe, and a discharging valve is installed on the outer wall of the discharging pipe. A bag-type dust collector is installed on the left side of the smashing shell, the upper end face of the bag-type dust collector communicates with a dust suction pipe, an induced draft fan is installed on the outer wall of the dust suction pipe, and the other end of the dust suction pipe communicates with a connecting cover detachably connected with the upper end of the smashing shell. An opening matched with the connecting cover is formed in the upper end face of the smashing shell in a penetrating mode. And therefore, the device can conveniently perform negative-pressure dust removal treatment on the generated dust in the crop crushing and packaging process, and the problem that the dust leaks to pollute the working environment when the crushed crops are packaged is avoided.

The present invention discloses a high-efficiency pulse bag dust collector and method, which belongs to the field of dust removal technology. It includes a blowing assembly, a dust collector body, a bracket and a dust powder absorption module. The blowing assembly is fixedly connected to the top of the dust collector body, the blowing assembly is movably connected to the dust collector body, the bracket is fixedly connected to the outer side wall of the dust collector body by welding, the dust powder absorption module is fixedly connected to the dust collector body, the blowing assembly includes a power source, a ventilation plate and an air blowing pipe, the ventilation plate is fixedly connected to the power source, the air blowing pipe is fixedly connected to the ventilation plate, the side wall of the air blowing pipe is provided with a blowing hole, and the side wall of the air blowing pipe is provided with an external thread. Through the use of the blowing assembly and the dust powder absorption module, the present invention can more fully and evenly remove the powder adsorbed on the filter element, and can fully absorb and store the dust inside the dust collector, and is easy to use.

The utility model discloses an automatic feeding, smashing and collecting system which comprises an outer box, a feeding port is formed in the side wall face of the upper end of the outer box, a conveyor extends into the feeding port, a discharging port is formed in the side wall face of the lower end of the outer box, and a smashing and collecting structure is installed on the outer box. The crushing and collecting structure comprises a dust removing and crushing part and a collecting part; the utility model relates to the technical field of crushing devices, and through automatic collection, crushing, weighing and sealed collection of waste materials, the waste material treatment efficiency and accuracy are remarkably improved, the labor cost is greatly reduced, meanwhile, dust diffusion is effectively restrained, the health of workers is protected, and the working environment quality is improved. And the cleaning workload and the equipment maintenance difficulty are reduced, so that the overall working efficiency is improved, and the production cost is reduced.

The invention discloses a method for collecting crystalline flake graphite separated out from molten iron, and relates to the technical field of iron and steel smelting. Molten iron is transported to a steelmaking area through a molten iron tank car, a worker adopts a rapid thermocouple temperature measuring gun to conduct temperature measuring operation on the molten iron, and the molten iron temperature T is obtained; calculating the addition amount of the scrap steel according to the molten iron temperature T obtained by temperature measurement; when the scrap steel needs to be added, the crushed scrap steel is slowly and uniformly added into the molten iron tank according to the calculated weight by using an electromagnetic chuck; and conveying the molten iron tank filled with the molten iron to a crystalline flake graphite collecting area by using a special metallurgical crane. The collecting method has the beneficial effects that when the collecting method is used for collecting the crystalline flake graphite, a large amount of waste water cannot be generated, the collecting method is more environmentally friendly and economical, the content of the crystalline flake graphite in the dedusting powder recycled through the collecting method can be larger than or equal to 60%, the recycling amount is large, the follow-up purification cost is reduced, and the collecting method is more economical.

The invention relates to the technical field of smoke-containing waste gas treatment, in particular to energy-saving and environment-friendly dust powder collecting equipment and a collecting method thereof.Whether the viscosity change of spraying liquid is abnormal or not is judged according to the slope of a change curve of the water pressure difference absolute value of adjacent elbows in a spraying liquid circulating pipeline along with time within a preset monitoring duration; according to the method, the outlet water spraying pressure of the spraying liquid at the nozzle is increased to a preset value, and the viscosity abnormal dominant category of the spraying liquid is judged according to the comparison result of the particle size values of the spraying liquid drops at different height positions in the spraying tower, so that different recycling modes of the spraying liquid are selected; viscosity change abnormity of the circulating spraying liquid can be found in time, the cyclic utilization mode of the circulating spraying liquid is adaptively adjusted according to the dust capturing efficiency attenuation condition of the circulating spraying liquid with the viscosity change abnormity, and maximum cyclic utilization of the spraying liquid is achieved while the dust removal efficiency of the circulating spraying liquid is guaranteed.

The invention discloses a germanium extraction device for continuous fluidization cascade reaction, belongs to the technical field of germanium extraction, and is used for solving at least one problem in the prior art that the germanium extraction process is complicated, the time is long, the acid consumption is large, and the temperature is high. The germanium extraction device comprises a feeding unit, a fluidization oxidizer and a fluidization reducer which are connected in sequence, the fluidization oxidizer is provided with an oxidizing gas inlet, and germanium-containing smoke dust powder in the fluidization oxidizer is always in a fluidization state and is subjected to an oxidation reaction; the fluidization reducer is provided with a reducing gas inlet, and the germanium-containing smoke dust powder oxidized in the fluidization reducer is always in a fluidization state and is subjected to a reduction reaction. The method can be used for extracting germanium from the germanium-containing smoke dust powder.

The present invention relates to the technical field of smoke and dust-containing waste gas treatment, and in particular to an energy-saving and environment-friendly dust and powder collection device and a collection method thereof. The present invention determines whether the viscosity change of the spray liquid is abnormal through the slope of the curve of the change of the absolute value of the water pressure difference over time of adjacent elbows in the spray liquid circulation pipeline within a preset monitoring time, and determines the abnormal dominant category of the viscosity of the spray liquid according to the comparison result of the particle size values ​​of the spray liquid droplets at different height positions in the spray tower by increasing the water outlet spray pressure of the spray liquid at the nozzle to a preset value, so as to select different recycling methods of the spray liquid, thereby realizing timely discovery of the abnormal viscosity change of the circulating spray liquid, and adaptively adjusting the recycling method of the circulating spray liquid according to the attenuation of the dust capture efficiency of the circulating spray liquid with abnormal viscosity change, and realizing the maximum recycling of the spray liquid while ensuring the dust removal efficiency of the circulating spray liquid.

The utility model discloses a dust removal powder feeding machine which comprises an installation rack, a rack installation face is arranged at the top of the installation rack, an installation machine body is installed on the upper surface of the rack installation face, a feeding cavity is formed in the installation machine body, and the side portion of the feeding cavity is connected with a machine body material cover. The machine body material cover is hinged to the installation machine body through a connecting hinge, a feeding opening is formed in the middle of the machine frame installation face, a discharging hopper is connected to the middle of the feeding opening, a motor installation position is arranged on the top of the installation machine body, and a motor installation cover is connected to the top of the motor installation position. A driving fan is mounted in the middle of the motor mounting cover, and the driving fan and the discharging hopper are correspondingly arranged. According to the dedusting powder feeding machine, dust overflow is avoided, dust diffusion is effectively reduced, the working environment is improved, the influence of dust on operators and equipment is reduced, feeding is smoother, and the overall efficiency is improved.

The present invention belongs to the field of building materials technology, specifically relating to a sintered hollow gangue wallboard and its preparation method. To maximize the processing of gangue, improve its utilization and added value, address the land occupation and environmental pollution caused by its large accumulation, and provide a gangue wallboard that meets national performance standards, the present invention provides a sintered hollow gangue wallboard. The wallboard is prepared by uniformly mixing 40-50% gangue, 20-30% Huaping clay, 10-20% river sand powder, 5-8% calcium carbide waste slag powder from an acetylene plant, 2-5% calcium aluminate cement, and 0.5-1% titanium slag smelting dust powder to obtain a mixture. The mixture is then mixed with water, stirred, extruded, and then calcined at high temperature. The resulting sintered hollow wallboard has a room-temperature compressive strength of 19.5 MPa, significantly higher than other commercially available sintered hollow wallboards. This is of great significance for the resource and environmentally friendly utilization of gangue.

The utility model discloses a vermicelli cutting machine for glitter powder processing, and relates to the technical field of glitter powder processing, the vermicelli cutting machine comprises an operation table and a vermicelli cutting box, the two sides of the front end of the operation table are respectively provided with a supporting assembly and a rotating assembly, and positioning shafts are rotatably arranged on a first rotating disc in the rotating assembly in an annular array mode; a sliding rod is arranged on a second rotating disc in the supporting assembly in a penetrating mode, a supporting piece is arranged at one end of the sliding rod and corresponds to the positioning shaft, the other end of the sliding rod is fixedly connected with a movable plate, the movable plate is arranged on a guide rod in a sliding mode, the guide rod is fixedly arranged on one side of the second rotating disc, and a limiting plate is arranged at one end of the guide rod. The movable plate is connected with the limiting plate through the spring and connected with the pull handle. Each supporting piece and the corresponding positioning shaft are relatively independent, when the glitter film roll is replaced, the supporting piece and the positioning shaft which need to replace the film roll can be independently operated, and other supporting pieces and positioning shafts which are in use cannot be influenced.

The utility model relates to the technical field of carbon electrode production, in particular to a dust removal feeding device for a carbon electrode, which comprises a feeding device main body, a dust removal mechanism main body is mounted in the feeding device main body, and the dust removal mechanism main body comprises an inner mounting mechanism, a fan, a rotating plate and a lower guide structure; the feeding device has the beneficial effects that the fan rotates and generates downward airflow under the limitation of the lower guide structure, according to the Bernoulli principle, it is obtained that the air pressure of a place with the high air speed is small, and generated negative pressure can enable carbon flying dust in the feeding device body to move downwards under driving of the airflow; carbon flying dust can directly enter the carbon electrode production equipment through the discharging port in the lower mounting mechanism and cannot fly out of the feeding port in the feeding device body, dust is removed at the source where the carbon flying dust is generated, and the dust removal effect is better compared with the mode that a dust collection mechanism is mounted at the feeding port of the feeding device body; and the influence of carbon flying dust leakage on personnel can be effectively avoided.

The utility model discloses an adjustable slotting mould for installation, which comprises a base plate, a connecting fixing rod is arranged on the outer wall of the base plate, an upper-layer clamping plate is arranged through the connecting fixing rod, a graduated scale is drawn on the upper-layer clamping plate, and a transverse sliding rail is arranged on the outer wall of the upper-layer clamping plate. A transverse fixing limiting plate and a transverse sliding limiting plate are arranged between the upper clamping plate and the base plate, and a transverse fixing bolt is arranged between the transverse sliding limiting plate and the transverse sliding rail. According to the grooving device, the situation that a wire groove is not straight due to the fact that the modes that workers operate the grooving device are not uniform and a large amount of smoke powder is generated in the grooving process to interfere with the sight of constructors is avoided while rapid construction is conducted, size positioning is conducted according to the graduated scale on the mold, and the grooving size meets the standard requirement.

The utility model relates to the technical field of auxiliary parts of dust removers, in particular to a special powder sprayer for explosion-proof dust. Comprising a dust bin shell, an inert dust adding access door, an inert dust bin, an equipment bin shell, an electric control access door, a PLC intelligent controller, a power indicating lamp, a powder shortage alarm lamp, a switch power box, a material level sensor, an air pipe, an electromagnetic valve, an air source adjusting valve, an air source access port, an inert dust spraying pipe, an electric control valve, an inert dust spraying port and moving trundles. The device can be mounted at the air inlet of the dust remover, inert dust is automatically added into the collecting bin of the dust remover in the working process of the dust remover, the inert dust is fully mixed with flammable and explosive dust, and finally the purpose of reducing the explosion risk of the flammable and explosive dust is achieved.