22 results about "Lance device" patented technology

The invention relates to the technical field of converter oxygen lances, in particular to an accident lance lifting device for a converter oxygen lance, which comprises a bottom plate, the top of one end of the bottom plate is fixedly connected with a first mounting plate, the first mounting plate is fixedly connected with a main motor, and an output shaft of the main motor is fixedly connected with a first crowned tooth coupling with a brake wheel; a main reduction gearbox is fixedly connected to the middle of the bottom plate, and a high-speed shaft of the main reduction gearbox is connected with a second drum-shaped tooth coupling with a brake wheel. An elastic bearing is arranged through a pin, when a main motor is powered off or breaks down, a clutch is closed, meanwhile, an accident lifting driving device is connected, an accident lifting motor drives a second reduction gearbox to work, the second reduction gearbox drives the clutch to work, and the clutch drives an elastic coupler to rotate; the elastic coupler drives the main reduction gearbox to work, the main reduction gearbox drives the winding drum to rotate, the winding drum lifts and moves away the oxygen lance through the steel wire rope, and the safety of the oxygen lance is protected.

This application provides a method for smelting DC04 steel in an electric arc furnace and an oxygen lance device for the electric arc furnace, relating to the metallurgical field. The method for smelting DC04 steel in an electric arc furnace includes: a raw material feeding stage, a pre-melting stage of raw material melting, a post-melting stage of raw material melting, an oxidation and heating stage after the raw material is saturated, a tapping stage, an RH refining stage, a stage after the pure circulation treatment is completed, and a steel casting stage. The method provided in this application achieves multi-functional rapid switching through a single lance body, solving the problems of traditional oxygen lances having single functions and complex switching. It can effectively shorten the smelting cycle, reduce power consumption per ton of steel, and improve the efficiency of metallurgical reactions such as dephosphorization. It is applicable to multi-stage smelting processes in electric arc furnaces of different capacities, and in particular, can meet the stringent control requirements for phosphorus and carbon content in the tapped steel of DC04 steel.

The utility model discloses a spray gun device and a side-blown converter with the spray gun device. The problems that an existing pulverized coal / sulfur spray gun for the side-blown converter is prone to being corroded in the using process, and the service life of the spray gun is shortened are solved. The furnace comprises a furnace body and a spray gun device, and the spray gun device comprises a feeding piece, a spraying piece and a spraying piece, the mixing chamber is provided with an air inlet cavity; one end of the spray gun inner pipe is communicated with the feeding opening, and the other end of the spray gun inner pipe is used for spraying out materials; the spray gun outer pipe is arranged on the outer side of the spray gun inner pipe in a sleeving mode and connected with the mixing chamber, the inner wall of the spray gun outer pipe and the outer wall of the spray gun inner pipe are matched with each other to form a gas channel, and the gas channel is communicated with the gas inlet cavity, enables gas and materials to be mixed at an outlet of the spray gun inner pipe and is used for providing power for the materials sprayed out of the spray gun inner pipe. The utility model has the advantages of simple structure, convenient assembly, reliable action, long service life and the like.

The utility model relates to the field of fire fighting equipment, and discloses a push-pull type pulse air pressure spraying water gun device which comprises a bottom plate, the top of the bottom plate is fixedly connected with an object placing plate, the top of the object placing plate is movably connected with a liquid storage tank, the top of the bottom plate is fixedly connected with a frame, one side of the frame is fixedly connected with a limiting ring, and the limiting ring is fixedly connected with the liquid storage tank. A hook-and-loop fastener limiting belt is fixedly installed on one side of the limiting ring. According to the push-pull type pulse air pressure spraying water gun device, through the arrangement of the bottom plate, the sleeve, the buffer spring, the movable rod, the fixed plate, the rotating shaft and the wheels, the device can have the effect of being convenient to move, and in the push-pull type moving process of the device, different force support can be provided for different wheels through a buffer structure; in this way, the wheels can move stably, then it is guaranteed that the bottom plate is kept balanced, the situation that the device inclines and topples due to the fact that different wheels are suspended due to the pothole position problem is avoided, and the use requirements of people are met.

A high-pressure lance device comprising a valve body (1) having an inlet (11) and an outlet (12) for receiving a lance (L), the valve body (1) also comprising an actuated valve (13) including an actuating element (14) that is movable between a rest position and an activated position, the lance device further comprising an actuating handle (2) movable between a rest state, in which the actuating element (14) is in its rest position, and an activated state, in which the actuating element (14) is in its activated position, characterized in that the actuating handle (2) comprises two gripping zones (21) that are fixed together during movement and adapted to be grasped simultaneously by both hands of a user to move the actuating handle (2) between its rest state and its activated state. (See Figure 2 for abbreviations.)

The invention discloses a self-adaptive vibration oxygen lance device suitable for a large-tonnage converter and a splashing early warning method, and relates to the technical field of converter steelmaking, the self-adaptive vibration oxygen lance device comprises an oxygen lance main body, a vibration driving system, a cooling protection system and a self-adaptive control system; the oxygen lance body serves as a core bearing part of the device, is made of high-strength high-temperature-resistant alloy steel, resists high temperature and high pressure and is adaptive to a high-strength smelting environment of a large-tonnage converter, the dry return occurrence rate is reduced to 2.3% from 12.0%, the smelting period is shortened to 32.5 min from 38.2 min, the end point carbon content hit rate is increased to 93.8%, the oxygen consumption per ton of steel is reduced to 55.2 m < 3 > from 58.6 m < 3 > / t, the reduction amplitude is 5.8%, and the oxygen lance body is suitable for the high-strength smelting environment of the large-tonnage converter. By means of hydraulic driving and high-temperature-resistant structural design, the self-adaptive control system can be stably applied to the large-tonnage converter of 200 t or above, manual intervention is not needed, the self-adaptive control system adapts to different smelting scenes, the problems that the large-tonnage converter is high in return drying rate, long in smelting period and non-adjustable in parameter are solved, and meanwhile the stability of equipment under the high-temperature working condition is improved.

The invention provides a double-oxygen-lance blow-in technology suitable for rapid production recovery of a blast furnace, and belongs to the field of blast furnace ironmaking. The technology comprises the following steps: (1) adopting a specific blow-in ore blending and charging system; and (2) preheating and melting an iron notch area by adopting a visual intelligent double-oxygen lance device. According to the method, a macroscopic charging heat system design is combined with a microcosmic local iron notch heating channel technology, and precise cooperation is formed in time and space, so that the normal smelting state of the blast furnace is efficiently reconstructed on the premise of ensuring safety. By means of the technology, the blast furnace can rapidly recover production, the normal production state can be achieved within 24 h, the time is shortened from 72 h to 24 h, the blow-in and subsequent production cost is greatly reduced, the labor intensity of workers is reduced, it is ensured that first furnace iron of the blast furnace safely and smoothly passes through a skimmer, and safe blow-in is achieved.

A high-pressure lance device (1) comprising: - at least one lance (2) channeling the expulsion of a pressurized fluid, this lance (2) extending essentially along a longitudinal axis (L), - a control module (5) configured to control a hydraulic unit (7) regulating the fluid flow rate in each lance (2), this control module (5) comprising at least one handle (24) configured for gripping this control module (5) by an operator. Furthermore, each handle (24) is connected, via at least one connecting arm (4), to each lance (2) in an articulated manner and offset from the longitudinal axis (L) of each lance (2). Fig. 1

The utility model discloses an oxygen lance device of converter smelting oxygen supply equipment, and relates to the technical field of converter smelting. The oxygen lance device of the converter smelting oxygen supply equipment comprises an oxygen lance body, and the upper end of the oxygen lance body is fixedly connected with a straight pipe; the gas mixing assembly comprises a nitrogen sealing disc, the nitrogen sealing disc is connected to the surface of the straight pipe in a sleeving mode, two nitrogen inlet pipes are fixedly connected to the eccentric position of the surface of the nitrogen sealing disc, and two oxygen inlet pipes are fixedly connected to the eccentric position of the surface of the straight pipe; a rotating shaft is rotationally connected into the straight pipe, a plurality of first fan blades and a plurality of second fan blades are fixedly connected to the surface of the rotating shaft, and through arrangement of an oxygen inlet pipe, a nitrogen inlet pipe, a first nitrogen inlet groove and a second nitrogen inlet groove, the first fan blades and the second fan blades can be conveniently driven in the process that oxygen and nitrogen are introduced into the straight pipe; the oxygen and the nitrogen rotate in the straight pipe, so that mixing of the oxygen and the nitrogen can be enhanced, uniform distribution of the gas is ensured, and the mixing effect of the oxygen and the nitrogen is improved.

Disclosed in the present invention is a lancing device, comprising a housing, a striker, a firing spring, a lancet removal rod, and a rear pull handle. The lancet removal rod is arranged in an ejection cavity and parallel to a rod body of the striker. The firing spring is sleeved on both the lancet removal rod and the rod body of the striker. The lancet removal rod is provided with a lancet removal action surface acting on a tail portion of a lancet, a reset limiting surface used for abutting against and compressing a tail portion of the firing spring, and a rear end blocking surface located at a rear end and acting on a guide column of the rear pull handle. The striker is provided with a firing limiting surface used for abutting against and compressing a head portion of the firing spring. In the present invention, fewer components are used, and two fewer components are used compared with lancing devices that already have relatively few components; and by fully utilizing the spatial and structural linkage between the lancet removal rod and the rear pull handle and between the lancet removal rod and the striker, the structure is optimized, functions are reliably and stably realized, and manufacturing costs can be significantly reduced.

The application provides a device and a method for researching the atomization characteristics of a gas jet impacting hazardous waste paste. The research device comprises a spray gun device, a gas jet system and a hydraulic system. The spray gun device comprises a support seat, a material cylinder, a material inlet, a material outlet, a nozzle and a material pushing piston. The material cylinder is arranged on the support seat, the material pushing piston is arranged in the material cylinder, the material inlet is arranged on the material cylinder, the material outlet is arranged at the end of the material cylinder, and the nozzle is arranged inside the edge of the material outlet. The gas outlet end of the gas jet system is connected with the nozzle. The power output end of the hydraulic system is connected with one end of the material pushing piston, and is used for driving the reciprocating movement of the material pushing piston. The device and the method can be used for researching the atomization characteristics of materials under different spray gun structures, obtaining the spray gun structure parameters when the atomization effect is optimal, laying a foundation for the subsequent research and development of a new spray gun, improving the atomization effect of the spray gun by adopting the optimal spray gun structure, and solving the problems of the blockage of the outlet of the pumping pipeline and the insufficient combustion of materials when the cement kiln is used for the collaborative disposal of hazardous waste.

A filling lance device (40) configured for contamination-free filling of a container (20) with a substance (1), the filling lance device (40) comprising: a tubular filling lance (41) and a lance housing (46) enclosing at least partially the tubular filling lance (41), wherein the tubular filling lance (41) and the lance housing (46) are movably arranged relative to each other between at least one filling configuration (A) and at least one de-contamination configuration (B, C, D), wherein the lance housing (46) comprises a channel system (48) being fluidically connectable to an external suction pump (7) and wherein the at least one de-contamination configuration (B, C, D) corresponds to a configuration in which the channel system (48) is in fluidic connection with the tubular filling lance (41).

The utility model discloses a spray gun device with a rotatable nozzle, and aims to solve the problems that a traditional spray gun is difficult to spray an inner cavity in a narrow space, the spraying effect is poor, and the structure of the spray gun is complex. The spray gun device comprises a spray gun body, a hollow motor and a nozzle. The hollow motor comprises a stator, a hollow rotor and a motor shell, the stator sleeves the hollow rotor, the stator is fixed in the motor shell, and the hollow rotor is rotatably connected with the motor shell; the tail end of the spray gun body is connected with the motor shell, the nozzle penetrates through the hollow rotor, the nozzle is connected with the hollow rotor, and the nozzle is rotationally connected with the spray gun body. The nozzle is driven by the hollow rotor to rotate, so that the direction of the spray gun is flexibly adjusted in the spraying process, paint can be more uniformly distributed during spraying, spraying dead angles are reduced, and the beneficial effects of improving the spraying quality and widening the application range of the spray gun are achieved.

This utility model provides a novel incinerator spray gun device, relating to the field of incinerator technology. It includes a spray gun body with a convenient replacement component at its front end. This component includes a nozzle body, with slots at both the upper and lower rear ends of the nozzle body. The upper and lower ends of the spray gun body also have internal slots, with two sets of springs connected inside the slots. In this utility model, when replacing or cleaning the nozzle body, two sets of pull blocks can be pulled up and down simultaneously, causing the insert block to be pulled out of the slot in the nozzle body. Then, the nozzle body can be pulled outwards to complete disassembly. When installing a new nozzle body, it can be pushed into the spray gun body. The angled opening of the insert block automatically retracts under pressure. Once the nozzle body is fully pushed into the spray gun body, it is automatically fixed by the insert block, avoiding the problem of traditional fixing methods that cannot quickly disassemble and assemble.

This utility model discloses a waterproof coating spray gun device that facilitates nozzle replacement. It includes a spray gun body, a nozzle body, four sets of protrusions, a snap-fit ​​assembly, and a limiting assembly. The four sets of protrusions are fixedly installed in a ring array on the outer wall of the nozzle body. The nozzle body is connected to the spray gun body via the protrusions and the snap-fit ​​assembly. The limiting assembly is installed on the spray gun body. The snap-fit ​​assembly and limiting assembly enable rapid nozzle replacement. Installation is completed simply by inserting the protrusion on the nozzle body along the guide groove of the snap-fit ​​cylinder, rotating it a certain angle to snap it into the ring groove, and then using the limiting assembly for fixation. Disassembly is performed in reverse, making it simple and convenient. This design shortens nozzle replacement time and improves construction efficiency, making it particularly suitable for construction projects with strict time requirements. It can effectively reduce downtime caused by nozzle replacement and ensure construction progress.

A high-combustion and high-velocity oxygen-fuel spray gun device, comprising a coaxial stabilizer (1), a combustion chamber (2), a coupler (4) and a gun barrel (8), wherein the front end of the combustion chamber (2) is of a Laval nozzle structure; the coaxial stabilizer (1) is hermetically connected to the rear end of the combustion chamber (2) and is provided with a bore pressure-measuring tube (9), an ignition needle (10), a fuel needle (11), a first oxygen input tube (12) and a second oxygen input tube (13); the coupler (4) is axially provided with a central through hole and an outer water-cooled through hole, one end of the coupler (4) is hermetically connected to an outlet of the Laval nozzle structure of the combustion chamber (2), and the other end of the coupler (4) is hermetically connected to the gun barrel (8) to integrally form a spray gun body; an inner axial through hole of the gun barrel (8) widens from the rear end to the front end; the interior of the combustion chamber (2), the central through hole of the coupler (4) and the interior of the gun barrel (8) jointly form a flame channel; a spray gun housing (3) is sleeved outside the combustion chamber (2); a gun barrel housing (7) is sleeved outside the gun barrel (8); two ends of the spray gun housing (3) are hermetically fixed to the coaxial stabilizer (1) and the coupler (4); two ends of the gun barrel housing (7) are hermetically fixed to ends of the coupler (4) and the gun barrel (8); a water-cooled channel is formed between the spray gun housing (3), the gun barrel housing (7) and the spray gun body; and the coupler (4) is radially provided with a powder feeding needle (6) to feed a carrier gas, which carries a spray powder, and hydrogen into the flame channel of the central through hole. Further disclosed is a working method for the high-combustion and high-velocity oxygen-fuel spray gun device. By introducing hydrogen and oxygen to carry out high-velocity combustion at the coupler (4), a bor

This utility model discloses a special oxygen lance device for blast furnace start-up. The lance body consists of an oxygen pipe and a cooling air pipe. The end away from the lance head is closed. The cooling air pipe is sleeved on the outside of the oxygen pipe, leaving an air flow channel between them. Inclined air inlets are symmetrically arranged on the left and right sides of the cooling air pipe. The other end of the air inlets is connected to a gas source through a pipeline. Inclined oxygen inlets are symmetrically connected on the left and right sides of the oxygen pipe. One end of the oxygen inlet passes through the cooling air pipe and is connected to the oxygen pipe at its top. The other end is connected to an oxygen storage tank through a pipeline. A thermocouple tube is connected to the end of the oxygen pipe near the lance head. This device solves the problem of severe heat deficiency in the hearth during the initial start-up and restart of blast furnaces that have been shut down. It enables rapid heating inside the hearth, ensuring sufficient temperature for the first batch of slag and iron, and smooth removal of slag and iron from the furnace. This greatly reduces the labor intensity in front of the furnace and provides a strong guarantee for the safe, rapid, and efficient production of the blast furnace.

The utility model discloses a waste incineration burner gun head device, and particularly relates to the technical field of burner gun head devices, the waste incineration burner gun head device comprises a combustion tube, a flange plate and a mounting hole, an extension tube is arranged on the left side in the combustion tube, and an adjustable protection assembly is arranged on the left side of the extension tube. The auxiliary pieces are arranged, the protective pipe is rotated, the threads on the inner side wall of the protective pipe are matched with the threads on the outer side wall of the threaded ring, the threaded ring can be driven to rotate on the inner side of the protective pipe, when the threaded ring rotates, the auxiliary pieces can be driven to be unfolded towards the opening of the protective pipe, and an inner channel of the protective pipe can be expanded along with opening of the auxiliary pieces; and on the contrary, when the protective pipe is rotated reversely and the spiral ring on the inner side is rotated reversely, the auxiliary pieces are in butt joint on the inner side of the protective pipe, the size of a channel on the inner side of the protective pipe can be reduced, external garbage and sundries are prevented from entering the protective pipe, and the protective function of the gun head device of the garbage incineration burner in use is enhanced.

The present invention relates to an improved hose-lance device for the total filling (1) of wooden barrels (8) used in wine racking, comprising, at one end, a vertical pneumatic cylinder (3) associated with a hose-lance (2) consisting of an outer pipe (2a) comprising an annular racking conduit (2a.1) connected to a main tank (5) by means of a filling conduit and to a reuse tank (6) connected to the vacuum pump (7) via the reuse conduit (6a), and a lower lance (2b), which has a closure and retention assembly (2b.1), wherein the hose-lance (2) includes a concave flow surface (2b.2) at the end of the lower lance (2b) and at least one pressure sensor (2c). [Fig. 1]

The utility model belongs to oxygen lance technical field especially relates to a strong mixed type oxygen lance device for nonferrous copper side-blown converter, its characterized in be equipped with pre-mixing cavity between oxygen inlet and compressed air inlet in gun body, and the outlet side of gun body is equipped with mixing cone, and the mixing cone is connected with the inner wall of gun body through the rib plate, and the outer surface of mixing cone is evenly provided with a plurality of helical blades along the circumferential direction, and the inner nozzle is connected with the front side of gun body, and the oxygen inlet is connected to the rear side of gun body. The utility model has the advantages that: by setting pre-mixing cavity, and setting mixing cone at the outlet, the mixing of oxygen and compressed air is more sufficient, so that the combustion effect in side-blown converter is more stable; the gun body made of ceramic sintering part can avoid the adverse effect of the violent mixing of oxygen and compressed air on the surface quality of gun body.

The utility model discloses an adjustable combustion oxygen lance device for blow-in, which comprises a main pipe, a sleeve, a quick coupler, a plugging block and a mounting component, an oxygen connecting pipe is arranged on one side of the main pipe, an oxygen pipe is arranged at one end of the oxygen connecting pipe, the sleeve is sleeved on the outer wall of the main pipe, and an air connecting pipe is arranged on one side of the sleeve. An air pipe is arranged at one end of the air connecting pipe, an air inlet pipe is arranged at one end of the air pipe, the multiple quick couplings are arranged at the ends of the oxygen pipe and the air inlet pipe in a sleeving mode respectively, and the plugging blocks are arranged at one ends of the quick couplings in a sleeving mode. Through the design of the plugging blocks and the mounting assembly, when the device needs to be disassembled and maintained, the plugging blocks are firstly arranged on the quick couplings of the device in a sleeving mode, the positions of the plugging blocks are fixed through the mounting assembly, and the plugging blocks are blocked by the plugging blocks, so that dust cannot enter the device; therefore, the situation that use is affected due to dust gathering in the subsequent use process is avoided.