16results about How to "Improve slag removal effect" patented technology

The invention discloses an internal welding device for a large steel pipe. The internal welding device comprises a welding platform, an L-shaped supporting plate is arranged on the welding platform, a conveying clamping mechanism is arranged on the welding platform, a positioning welding mechanism is arranged on the welding platform, and a deslagging supporting mechanism is arranged on the positioning welding mechanism; the conveying and clamping mechanism comprises a roller bracket, a conveying roller, a fixed supporting rod, an arc-shaped guide plate, a first universal ball and a clamping part; the clamping part is used for clamping a steel pipe; the positioning and welding mechanism comprises a motor support, a rotating motor, a driving shaft, a conveying frame, a welding part and an auxiliary part, the welding part is used for welding the joint of the two steel pipes, and the auxiliary part is used for positioning and supporting the conveying frame. The device has the beneficial effects that workers do not need to enter the steel pipe for welding, the labor intensity of the workers is reduced, the welding efficiency is improved, the welding quality is improved, the welding slag is convenient to clean, the grinding block is convenient to replace, and the dismounting and mounting efficiency is high.

The utility model relates to the technical field of biomass combustion furnaces, in particular to an automatic slag removal device of a biomass new energy furnace, which comprises a combustion box, a fixed grate arranged in the combustion box, a plurality of ventilation slots arranged in the fixed grate, a slag removal grate arranged on the lower side of the fixed grate in a sliding manner, and a plurality of groups of slag removal teeth arranged on the upper portion of the slag removal grate. The deslagging teeth are upwards arranged in the ventilation slots in a penetrating manner; and one end of the deslagging grate is connected with a reciprocating driving mechanism. When attached slag is generated through combustion, the motor can be started, the motor enables the eccentric shaft to slide in the length direction of the sliding groove while rotating in the sliding groove, the slag removal grate can be driven to reciprocate along the ventilation groove, the slag removal teeth are arranged in the ventilation groove in a penetrating mode, and automatic slag removal of the combustion box in the biomass new energy stove can be achieved through reciprocating motion of the slag removal teeth. Slag is prevented from blocking the ventilation slots to affect the combustion effect.

The application relates to an evaporative cold-pipe deslagging structure and a deslagging method, and belongs to the technical field of dry dust removal equipment for converter steelmaking. The evaporative cold-pipe deslagging structure comprises a detection rod arranged at the top of an evaporative cold pipe, a plurality of vibration assemblies arranged on the side wall of the outer surface of the evaporative cold pipe and a maintenance door arranged on one side of the bottom of the evaporative cold pipe. The vibration assembly comprises a base fixedly arranged on the side wall of the evaporative cold pipe and a vibration motor detachably connected to the base. The base comprises a bottom plate arranged on the side wall of the evaporative cold pipe and a connecting plate arranged on the bottom plate. The bottom plate is an arc-shaped plate, and the curvature of the bottom plate is greater than that of the side wall of the evaporative cold pipe. The application has the advantages of complete descaling effect, dry dust removal, prolonged service life of the equipment, improved dust removal effect, high coal gas recovery quality and the like.

The utility model discloses a tool for cleaning accumulated slag at a dedusting flue port of an LF (ladle furnace), which relates to the technical field of auxiliary equipment in the metallurgical industry and comprises a grid support and an operating rod piece, the grid support is used for being detachably and fixedly connected with a slag cleaning port at the dedusting flue port of the LF, and the grid support is provided with a plurality of grids; the cleaning end of the operation rod piece is used for penetrating through a grid and being supported on the edge of the grid, the cleaning end of the operation rod piece is used for being inserted into a gap between a flue wall and accumulated slag so as to clean the accumulated slag, the end, away from the cleaning end, of the operation rod piece is the handle end, the handle end is used for being held by an operator, the structure is simple, use is convenient, and practicability is high. Meanwhile, efficient operation of the dust removal system is guaranteed, the field operation environment is improved, and the health of workers is protected.

The utility model provides a kind of short flow prevention cyclone grit chamber with oil and slag removal function, including inlet channel, pool body, water collecting cylinder, outlet channel, sand discharge emptying pipe and slag discharge channel etc. Speed-regulating pusher consisting of frequency conversion motor, paddle and flow velocity meter is equipped in inlet channel, and inlet flow rate can be adjusted according to water volume. The bottom of pool body is conical cylinder, and water is discharged from the bottom of central water collecting cylinder, to avoid short flow. There is also slag remover, which removes oil and slag by driving motor driving scraper and stirring blade on rotating shaft. The grit chamber solves the problem of short flow, poor oil and slag removal of traditional equipment by speed-regulating pusher and flow guide water collecting cylinder, realizes "three-phase separation", improves sand removal efficiency, and does not increase land occupation, which can be used for existing grit chamber modification and is suitable for sewage treatment pretreatment.

The utility model discloses a movable type grinding fluid on-line filtering device which comprises a movable box body, a precise filtering unit used for filtering grinding fluid and a residue discharging unit used for collecting and separating filter residues are arranged in the box body, a filtering liquid inlet in the bottom of a filtering tank in the precise filtering unit is communicated with a residue discharging pipe, and a filtering liquid outlet in the bottom of the filtering tank is communicated with the residue discharging pipe. The precise filtering unit is arranged in the box body, the residue discharging unit comprises a residue discharging barrel, a filtering basket and a residue inlet, the filtering basket is arranged in the residue discharging barrel, the residue inlet is formed above the filtering basket, and the residue inlet is connected with a residue discharging pipe. And the whole device can be conveniently moved and transferred.

The utility model discloses a kind of device of high-efficiency cleaning of extraction tank accumulated residue, belong to extraction tank technical field.A kind of device of high-efficiency cleaning of extraction tank accumulated residue, including extraction tank, baffle one and baffle two are fixed in extraction tank inside, the inside of extraction tank is divided into mixing chamber, clarification chamber and backflow slag discharge chamber;Clarification chamber is equipped with slag removal device inside, and slag removal device slides along clarification chamber long side direction, for the sediment residue in clarification chamber is transferred to backflow slag discharge chamber;Liquid in mixing chamber is overflowed to clarification chamber by baffle one;The sediment residue in clarification chamber is moved to backflow slag discharge chamber bottom by the slag removal channel of baffle two bottom, and is discharged by the slag discharge port of backflow slag discharge chamber bottom.

This invention belongs to the field of iron and steel metallurgy technology, specifically relating to molten steel for chromium addition in a converter for low-carbon chromium steel production. In conventional alloy steel smelting processes using high-carbon ferrochrome for alloying, the carbon content in the molten steel obtained after secondary slag formation easily exceeds the upper limit, making it difficult to obtain low-carbon chromium steel with a carbon content below 0.15% after subsequent alloying processes. To address this problem, this invention provides molten steel for chromium addition in a converter for low-carbon chromium steel production. To improve the chromium recovery rate in low-carbon chromium steel and prevent the carbon content in the molten steel obtained after secondary slag formation from exceeding the upper limit, this invention adds a small amount of chromium concentrate during the secondary slag formation process and continuously blows oxygen from the top during the secondary slag formation process. This significantly reduces the carbon content in the molten steel obtained after secondary slag formation while simultaneously improving the chromium recovery rate.

The utility model discloses a kind of aluminium electrolysis cell molten aluminium stabilizing flow devices, comprising: anti-settling equipment shell, its side surface is fixedly provided with control cabinet;Mounting shell, it is fixedly connected in anti-settling equipment shell side;Driving motor, it is installed in mounting shell;Rotary shaft, it is driving motor output shaft transmission connection, its end away from driving motor is rotatably installed in the fixed sleeve on the inner wall of anti-settling equipment shell;Mixed support, it is installed on rotary shaft, and can rotate synchronously with rotary shaft;Filter screen body, it is installed in the inside of anti-settling equipment shell;Fixed support ring, it is installed on rotary shaft;Cleaning support, it is fixedly installed on fixed support ring, can move or rotate synchronously with fixed support ring;Wherein, when driving motor drives rotary shaft rotation, mixed support can stir molten aluminium, cleaning support can clean filter screen body.The utility model can change the pressure of cleaning support to filter screen by adjusting the position of fixed support ring, enhance the effect of cleaning residue.

The utility model discloses a heat-engine plant boiler deslagging device which comprises a boiler, and the bottom of the boiler is fixedly connected with a boiler net through bolts. A top seat; compared with the prior art, through the arrangement of the attaching mechanism and the mode that a piston is driven by air pressure to move, rapid attaching of the scraper to boilers of different sizes is achieved, the problem that an existing device cannot adapt to the boilers of different sizes is effectively solved through the self-adaptive adjusting mode, and therefore the device has the advantages of being high in adaptability, convenient to use and high in practicability. The applicability is obviously improved; through the arrangement of the deslagging mechanism, on the basis that the scraper moves up and down conventionally along with the follow-up seat in a reciprocating mode, short-distance up-and-down reciprocating motion of the scraper can be achieved, the scraper can generate higher scraping force in the deslagging process, stubborn slag can be effectively dealt with, and the deslagging effect is greatly improved.

The utility model discloses a slurry deslagging device for cleaning papermaking, which comprises a support frame and a machine body, and is characterized in that the support frame is arranged on the periphery of the machine body and is fixedly connected with the machine body, the machine body comprises an upper machine body and a lower machine body, a primary filtering mechanism is arranged in the upper machine body, and the primary filtering mechanism comprises a filtering box and a blanking channel; a filtering box is arranged in the lower machine body and movably connected with the inner wall of the upper machine body, a secondary filtering mechanism is arranged in the lower machine body and comprises a conical separation barrel, and the conical separation barrel is movably connected with the discharging channel through shaft hole fit. According to the utility model, large and small particle residues are subjected to grading treatment, so that the residue removal effect is improved, and the device can be effectively prevented from being blocked.

The utility model discloses a smelting furnace slag cleaning device which comprises a sealing ring and a material collecting cover, and a driving shaft is arranged in the middle of the surface of the bottom of the sealing ring. The first spring and the second spring are adopted, when the driving shaft rotates, due to the influence of centrifugal force, the second spring and the second telescopic rod can extend outwards, then the lateral slag removal plate is moved outwards, the lateral slag removal plate is attached to the inner wall of the smelting furnace, and after the lateral slag removal plate is moved, due to the fact that the thicknesses of slag on the inner wall of the smelting furnace are different, the slag removal effect is good. Through high-speed rotation, brushes which are driven by first springs and first telescopic rods to stretch out can abut against the furnace slag surfaces with different thicknesses, damage caused by fixation of the slag removal structure is avoided, and then the brushes can gradually grind and remove the abutting furnace slag surfaces through high-speed rotation; slow and multiple times of step-by-step progressive slag removal operation is achieved, the overall slag removal effect can be improved, meanwhile, damage to the furnace wall of the smelting furnace can be reduced, and the beneficial effect that damage to the furnace wall is small is achieved.

The utility model discloses welding slag removing equipment for an automobile seat sliding rail, and belongs to the technical field of welding slag removing of sliding rails. Welding slag removing equipment for automobile seat sliding rails comprises a workbench and further comprises two supporting plates, the two supporting plates are symmetrically distributed and fixed to the side wall of the top end of the workbench, two supports which are symmetrically distributed are fixed to the side wall of one side of the workbench, an air cylinder is fixed to the side wall of the top end of each support, a push plate is fixed to the output end of each air cylinder, and a through groove is formed in the side wall of the top end of the workbench; a reciprocating assembly is arranged on one side of the workbench. Through the arrangement of the reciprocating assembly, the slag removal plate a is driven to move left and right in a reciprocating mode, slag removal work on the sliding rails can be completed within a short time, the sliding rail slag removal device is suitable for slag removal work on a large number of sliding rails, welding slag removal processing can be conducted on the sliding rails with different lengths, the working efficiency is greatly improved, the slag removal effect is good, and the labor intensity of workers is reduced. And the labor cost of enterprises is reduced.

The invention relates to the technical field of ladle refining, in particular to a slagging agent and a preparation method thereof. The raw materials of the slag melting agent comprise corundum slag, limestone, industrial sodium carbonate and clay, and the preparation method comprises the following steps: uniformly mixing and stirring the raw materials, and pressing into pellets to obtain the slag melting agent. According to the method, Al2O3 and CaO in the vanadium extraction corundum slag are recycled and combined with lime to generate low-melting-point substances such as heptaaluminite and dodecacalcium, then limestone and industrial sodium carbonate are matched, the characteristic that the limestone and the industrial sodium carbonate are heated to decompose is utilized, CO2 gas is generated through decomposition in the slag surface, a slagging agent is promoted to react with the lime in the slag surface better, and meanwhile, the slag surface is protected from the slag surface. The melting point of the slag is reduced by using Na2O generated by decomposition of industrial soda ash; the slag melting agent is good in slag melting effect, low in production cost and free of fluorine, and the environmental protection pressure of a steel mill is greatly relieved.

The utility model relates to the technical field of cotton pulp production, in particular to a slag removal device for producing pure cotton pulp, which comprises a base, a slag removal cylinder is mounted at the top of the base, a pulp inlet pipe is mounted at the top of the slag removal cylinder, and a filter cylinder is mounted at the center of the inside of the slag removal cylinder. A separation cover is installed in the slag removal cylinder and located on the outer side of the filter cylinder, a guide cover is installed in the slag removal cylinder and located between the slag removal cylinder and the separation cover, a first filter cavity is formed between the guide cover and the slag removal cylinder, and a heavy slag outlet pipe is installed on the portion, located on the outer side of the slag removal cylinder, of the first filter cavity; compared with an existing residue removal device for producing pure cotton pulp, the residue removal device for producing pure cotton pulp has the advantages that light residues and heavy residues can be effectively separated through the design, meanwhile, the stability during centrifugal residue removal can be improved, the vibration influence on the whole device is reduced, and the centrifugal residue removal effect is improved.