CN103954133A - Continuous fluxing charging device for medium frequency furnace - Google Patents
Continuous fluxing charging device for medium frequency furnace Download PDFInfo
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- CN103954133A CN103954133A CN201410053455.XA CN201410053455A CN103954133A CN 103954133 A CN103954133 A CN 103954133A CN 201410053455 A CN201410053455 A CN 201410053455A CN 103954133 A CN103954133 A CN 103954133A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a continuous fluxing charging device for a medium frequency furnace. A furnace top smoke hood (3) is moveably arranged right above the medium frequency furnace (1) and is located in a moveable smoke hood (2); the left end of a vibrating charging device (5) is connected with the furnace top smoke hood (3) on the upper part of the medium frequency furnace (1); a rotating smoke exhaust device (7) is mounted on a chute sealing cover (20) on the upper part of the vibrating charging device (5) and a de-dusting pipeline; a heat-resisting chute (19) is arranged at the inner end of the vibrating charging device (5); a combustion chamber (8) is arranged on the lower part of the vibrating charging device (5) and is connected with a secondary combustion system (6); a planar orthogonal electric trolley (10) is moveably arranged in the vibrating charging device (5); a water-cooling system is arranged on one side of the heat-resisting chute (19), the furnace top smoke hood (3) and a fuel gas burning nozzle (13); an electric control system is arranged at the rear end of the vibrating charging device (5). The continuous fluxing charging device for the medium frequency furnace designed by the invention is used for continuously preheating, charging and fluxing, so that high-efficient smelting and energy-saving effect are achieved. The continuous fluxing charging device for the medium frequency furnace has the advantages of high heat energy use ratio, investment-saving effect, convenience in operation and greatly increased production efficiency.
Description
Technical field: the present invention relates to a kind of metallurgical equipment, a kind of middle frequency furnace that especially middle frequency furnace is efficiently smelted use reinforced device of fluxing continuously.
Background technology: existing middle frequency furnace feed way has two kinds: magnechuck and to add trolley reinforced.Two kinds of feed way are discontinuous feeding in raw material, and each feeding quantity is large, easily in burner hearth, pile up, and furnace charge leakiness, the thermal efficiency of electric energy is low; High-temperature flue gas in middle frequency furnace smelting process is not reused, and steel scrap enters stokehold without heating, relies on electric energy heating completely, and power consumption is 630-670KWh/t steel, and power consumption is high, wastes energy.
Summary of the invention: the object of the invention is to overcome deficiency of the prior art, provide and can realize efficient smelting, heat utilization rate is high, electricity saving and energy saving significantly, a kind of middle frequency furnace of enhancing productivity reinforced device of fluxing continuously.
The technical scheme that the present invention adopted for achieving the above object: its furnace roof petticoat pipe 3 is movably arranged on directly over middle frequency furnace 1, and be placed in mobile petticoat pipe 2, vibration material feeding 5 left ends are connected with the furnace roof petticoat pipe 3 on middle frequency furnace 1 top, hopper 4 is arranged on vibration material feeding 5 tops, rotation fume extractor 7 is arranged on the hopper seal cover 20 on cleaning shaft and vibration material feeding 5 tops, heat-resisting hopper 19 is placed in vibration material feeding 5 the inners, combustion chamber 8 is placed in vibration material feeding 5 bottoms, and be connected with second-time burning system 6, vibrating device 9 is arranged on heat-resisting hopper 19 cell body ends, the electronic chassis 10 of planar quadrature is movably placed in vibration material feeding 5, physical pendulum suspension arrangement 18 is arranged on the electronic chassis 10 of planar quadrature, water-cooling system is arranged on heat-resisting hopper 19, furnace roof petticoat pipe 3 and fuel burner nozzle 13 1 sides, electric control system is arranged on vibration material feeding 5 rear ends.
The invention has the beneficial effects as follows: due to this device integral installation on the electronic chassis of planar quadrature, can carry out integrated moving according to technological requirements such as the reinforced melting of middle frequency furnace, turndown tapping, the replacing of stove position, furnace roof binders, adopt in addition the advanced technologies such as rotation smoke evacuation and portable weighing bucket at cleaning shaft, steel scrap square sheet of paper used for painting or calligraphy face, make that this device has good airproof performance, heat utilization rate is high, floor space is little, reduced investment, the distinguishing feature such as easy to operate:
1, utilize the energy of the cheapness such as producer gas or natural gas to carry out continuously pre-heating to steel scrap, can utilize electric furnace waste heat and second-time burning system by more than scrap heating to 500 DEG C, replace part electric energy.Can economize on electricity more than 100KWh/t steel, save the energy.
2, by vibration material feeding, steel scrap is evenly added in middle frequency furnace, can realizes continuous uniform reinforced, charging rate is adjustable, can avoid steel scrap to pile up in burner hearth.
3, realize efficiently and smelting.Save when electric energy, reduce the time of middle frequency furnace power supply, 30% left and right of can shortening the heat, the object that reaches totally-enclosed and flux, efficiently smelt, thus significantly improve production efficiency.
Brief description of the drawings: Fig. 1 is structure connection diagram of the present invention.
Fig. 2 is the C-C cutaway view of Fig. 1.
Fig. 3 is the A-A cutaway view of Fig. 1.
Fig. 4 is the B-B cutaway view of Fig. 1.
Fig. 5 is physical pendulum suspension arrangement structure connection diagram.
Detailed description of the invention: embodiment 1: as Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Fig. 5, its furnace roof petticoat pipe 3 be movably arranged on middle frequency furnace 1 directly over, and be placed in mobile petticoat pipe 2, vibration material feeding 5 left ends are connected with the furnace roof petticoat pipe 3 on middle frequency furnace 1 top, hopper 4 is arranged on vibration material feeding 5 tops, rotation fume extractor 7 is arranged on the hopper seal cover 20 on cleaning shaft and vibration material feeding 5 tops, heat-resisting hopper 19 is placed in vibration material feeding 5 the inners, combustion chamber 8 is placed in vibration material feeding 5 bottoms, and be connected with second-time burning system 6, vibrating device 9 is arranged on heat-resisting hopper 19 cell body ends, the electronic chassis 10 of planar quadrature is movably placed in vibration material feeding 5, physical pendulum suspension arrangement 18 is arranged on the electronic chassis 10 of planar quadrature, water-cooling system is arranged on heat-resisting hopper 19, furnace roof petticoat pipe 3 and fuel burner nozzle 13 1 sides, electric control system is arranged on vibration material feeding 5 rear ends.
Embodiment 2: as shown in Figure 1 and Figure 2, material pressing device is vertically fixed in described furnace roof petticoat pipe 3 tops, when work, when steel scrap is in the time that fire door knot arch putty and follow-up steel scrap can not rely on from reentry stove, material pressing device tup is downward fast moving, steel scrap is pressed in stove, to ensure that in stove, steel scrap has certain packing, improves the heat transfer efficiency of electric furnace.Furnace roof petticoat pipe 3 bottom cover bodies adopt non-magnetic stainless-steel sheet manufacture, furnace roof petticoat pipe 3 tops adopt the manufacture of Q235 common iron, liner is refractory material, binder tup adopts non-magnetic heat-resistance stainless steel manufacture, the electronic chassis 10 of planar quadrature is installed in furnace roof petticoat pipe 3 bottoms, in the time of middle frequency furnace 1 turndown tapping, furnace roof petticoat pipe 3 direction opposite side from middle frequency furnace 1 moves and exits, middle frequency furnace 1 is got back to and is smelted behind position, furnace roof petticoat pipe 3 is returning to middle frequency furnace 1 top position along rail 21, rail 21 is divided into two sections, one section is fixed on plane on middle frequency furnace 1, another section is fixed on platform, two sections of rail 21 disconnect at middle frequency furnace 1 table and platform gap place, to keep the linearity of rail 21, in the time of turndown, two sections of rail 21 separate up and down, middle frequency furnace 1 turndown tapping is got back to and is smelted behind position, two sections of rail 21 turn back to again level, now, furnace roof petticoat pipe 3 can left and right horizontal move on middle frequency furnace 1 table.3 points of furnace roof petticoat pipes are electronic, hydraulic drive, the multiple move mode of strength transmission.
Embodiment 3: as Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, described vibration material feeding 5 is by heat-resisting hopper 19, hopper seal cover 20, the electronic chassis 10 of planar quadrature, physical pendulum suspension arrangement 18, vibrating device 9 compositions such as parts such as grade, the section of heat-resisting hopper 19 is U-shaped, vibrating device 9 is arranged on heat-resisting hopper 19 cell body ends, by 18 integral hoistings of physical pendulum suspension arrangement on the electronic chassis 10 of planar quadrature, vibration material feeding 5 is anterior to be connected with furnace roof petticoat pipe 3, top hopper seal cover 20 is connected with hopper 4, exhaust opening is connected with rotation fume extractor 7, form totally enclosed scrap steel preheating, continuous-feeding passage, vibration material feeding 5 is arranged on the platform of middle frequency furnace 1, relies on the electronic chassis 10 of planar quadrature of bottom to move as vertical and horizontal along platform rail 21, for preheating scrap with to the even feed of middle frequency furnace 1, vibrating material feeding device 5 is arranged in the rightabout of middle frequency furnace 1 lander, also can be 90 degree or be less than 90 degree any direction arrange, when the 1 furnace shell maintenance of a middle frequency furnace, need to change to another stove position time, vibration material feeding 5 can rely on the electronic chassis 10 of the planar quadrature of bottom to do transverse horizontal along platform rail 21 and move, move to No. two stations 12 of mobile trolley used track from station 11 of mobile trolley used track, realize a vibration material feeding 5 to two one drag two operations that middle frequency furnace 1 is reinforced.When work, the electronic chassis 10 of planar quadrature drags the parts entirety such as hopper seal cover 20 and hopper 4 of filling high temperature steel scrap and moves to 1 mouthful of direction of middle frequency furnace, to feed location, vibrating device 9 brings into operation, and make heat-resisting hopper 19 produce horizontal reciprocating power, high temperature steel scrap in heat-resisting hopper 19 moves to discharge end from feed end under the effect of vibration force, finally be admitted in the molten bath of middle frequency furnace 1, the movement velocity of steel scrap in heat-resisting hopper 19 is directly proportional to vibration force size, regulate the size of exciting force, i.e. the size of adjustable charging capability.
Embodiment 4: as shown in Figure 1, Figure 2, Figure 3, Figure 4, described hopper seal cover 20 is arranged on heat-resisting hopper 19 tops, section is trapezoidal or domes, liner heat proof material, hopper seal cover 20 is not joined and is shaken, between hopper seal cover 20 and heat-resisting hopper 19, adopt guard seal and labyrinth seal structure, the cold blast rate that makes to enter in heat-resisting hopper is reduced to minimum; On the top of hopper seal cover 20,2-3 being installed props up or branched fuel burner nozzle 13, steel scrap in heat-resisting hopper 19 is heated to more than 500 DEG C, under the sustained combustion heating condition of fuel burner nozzle 13, the interior formation temperature of heat-resisting hopper 19 is the high-temperature atmosphere of 500 DEG C-800 DEG C, under the guiding of dust pelletizing system air-flow, penetrate the steel scrap bed of material in hopper from top to bottom, enter workshop cleaning shaft finally by rotation fume extractor 7.Because the heat exchanging process of high-temperature flue gas and steel scrap is heat transfer process, so there is the higher thermal efficiency.
Embodiment 5: as shown in Figure 1, Figure 2, Figure 3, Figure 4; described heat-resisting hopper 19 is made up of side plate, base plate and high-temperature material contact part; adopt the manufacture of heat-resistance and wear-resistance steel material; side plate is mesh-structured; base plate is fixed on crossbeam; employing tapered bar is fastening; one end of tapered bar is goed deep into cell body inside and is connected with bearing pin; the other end is at side plate outer setting spiral retaining mechanism; can be to base plate locking under non-stop-machine state, guaranteeing can timely fastening processing when the part such as base plate, side plate is loosening because temperature fluctuation produces.
Embodiment 6: as shown in Figure 1, Figure 2, Figure 3, Figure 4, described vibrating device 9 has four eccentric shafts, comprise a pair of gyratory directions eccentric high speed shaft that speed is identical on the contrary mutually and another is to the rotating slow-speed shaft of reverse constant speed, the frequency ratio 1:2 of two pairs of eccentric shafts, adopt large play bearing, use molybdenum bisuphide grease lubrication, be arranged on hopper 4 cell body charging ends, also can be arranged on hopper 4 cell body middle parts, be formed by stacking by low-frequency vibration and dither, the centrifugal force of two pairs of eccentric shaft vertical direction is cancelled each other, and simultaneously anti-when the centrifugal force of horizontal direction.When eccentric shaft centrifugal force direction is consistent, produce larger negative acceleration, reinforced body retreats, when the centrifugal force opposite direction of eccentric shaft, produce less positive acceleration, reinforced body advances, and the reinforced body that is suspended on suspension rod lower end obtains differential kinetic characteristic thus, produces disresonance type horizontal reciprocating movement.
Embodiment 7: as shown in Figure 1, Figure 2, Figure 4 shows, described hopper 4 is arranged on the top of vibration material feeding 5, in the horizontal direction near heat-resisting hopper 19 feed ends, bottom has discharging opening to be connected with hopper seal cover 20, bearing is arranged on the electronic chassis 10 of planar quadrature, for avoiding outside cold wind to enter in heat-resisting hopper from hopper is suitable for reading, two-layer flashboard has been installed hopper 4 is interior, formed upper and lower two feed bins, wherein hopper 4 elevating hoppers are integrated moving weighing type, structure is " V " font section, divide left and right two parts by " V " shape longitudinal axis, be arranged on respectively on two the electronic chassis 10 of planar quadrature in left and right, rail 21 beam bottoms under the electronic chassis 10 of planar quadrature are provided with LOAD CELLS, when filling after steel scrap in " V " font hopper 4, LOAD CELLS is to the automatic weighing system transmission of signal line item of going forward side by side, simultaneously, connect the blowing semaphore request of blanking bin, V font feed bin is outwards mobile respectively, open the bin blanking mouth of hopper 4, steel scrap is by conducting oneself with dignity along V font feed bin inclined-plane down sliding, enter in the feed bin of bottom, now feeding bin weighing system shows hole capital after selling all securities instruction, two of left and right feeding bin side plate moves in the middle of being with trend by the electronic chassis 10 of planar quadrature respectively, until the feed opening Close All of feed bin, once feed in raw material, enter charging next time and discharge circulation, bottom feed bin is positioned at the bottom of feeding bin, and after the steel scrap of feeding bin all enters blanking bin, material loading Hatch Opening is closed blanking Hatch Opening and opened, and the steel scrap in blanking bin all enters in heat-resisting hopper 19, closes afterwards blanking Hatch Opening, enters next charging and discharge circulation, bottom feed bin flashboard is water-cooled slab construction, is opened and closed by electric pushrod control flashboard, below flashboard, be scrap heating face, temperature reaches more than 500 DEG C, and upper and lower feed bin 4 gates alternately open and close, and can reduce mixed air quantity, improves scrap steel preheating temperature.
Embodiment 8: as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, the base 17 of described physical pendulum suspension arrangement 18 is arranged on the electronic chassis 10 of planar quadrature, suspension rod 15 upper ends are arranged in base 17 arc seat board above by half planchet 14 support levels, suspension rod 15 lower ends are being hung heat-resisting hopper 19 and are all being joined the object that shakes by nut 16, suspension rod 15 is high strength stud, also can freely swing around arcwall face with upper end half planchet 14 gun iron links, can evenly carry whole ginsengs object that shakes, there is the effect to vibrational system guiding and transmitting vibrations power simultaneously; Lower end because of weight hang and under the effect of vibration force horizontal reciprocating movement, because double-amplitude maximum is only 25mm, so suspension rod 15 pendulum angles are very little, be horizontal vibration.The effect of physical pendulum suspension arrangement 18 is that the object that shakes is all joined in evenly carrying, has the effect to vibrational system guiding and transmitting vibrations power simultaneously.
Embodiment 9: as Fig. 1, shown in Fig. 2, described second-time burning system 6 is by blower fan, motor, control valve station, multiple branch circuit flowmeter, electric butterfly valve, pipe network and fuel burner nozzle 13 form, on heat-resisting hopper 19,2-3 is installed and props up fuel burner nozzle 13, fuel burner nozzle 13 adopts spark plug automatic ignition, multiple branch circuit flowmeter is for detection of the air quantity of system, electric butterfly valve can regulate each section of intake of system in time, can effectively detect and control the flue gas atmosphere of heat-resisting hopper 19, rationally control gas nozzle 13 amounts of blowing and be blown into air capacity number, external energy is fully burnt, make the heating-up temperature of steel scrap reach 500-800 DEG C.
Embodiment 10: as shown in Figure 1 and Figure 2, described rotation fume extractor 7 is made up of two rotation petticoat pipes and a tube connector, and petticoat pipe is welded with steel plate and section bar, inner lining refractory, floor installation has rotary support, can be in arbitrarily angled lower rotation, two rotation petticoat pipes be arranged on respectively on cleaning shaft and the hopper seal cover 20 of vibration material feeding 5 on, between be communicated with tube connector hinge joint, form the smoke discharging pipe of rotatable flexible, wherein be fixed on the following petticoat pipe of cleaning shaft, that petticoat pipe taking fixing point as pivot claims fixing rotary cover, and be fixed on petticoat pipe on the hopper seal cover 13 of vibration material feeding 5 except with fixing point rotation, also must move forward and backward with vibration material feeding 5, be called moving rotary petticoat pipe, tube connector between two petticoat pipes is circle or rectangular tube, having steel plate to roll forms, inner lining refractory heat-insulation and heat-preservation, one section of tube connector and fixing rotation petticoat pipe gun iron link, the other end stretches in moving rotary petticoat pipe casing, according to the change of distance sliding extension of two petticoat pipes, and with asbestos cloth to sealing gap.
Embodiment 11: as shown in Figure 1, Figure 2, Figure 3, Figure 4, the electronic chassis 10 of described planar quadrature is made up of parts such as motor, reductor, shaft coupling, wheel group brake, electric control systems, the driving moment of motor is done forward and reversed operation by reductor, shaft coupling band motor car wheel, make the electronic chassis 10 of planar quadrature be communicated with contained object longitudinally or laterally rail 21 move, for making the normal work of vibration material feeding 5 and in location, any position, on the high speed shaft of motor and decelerator, brake being installed, brake is normally closed type, and when energising, brake block is opened, when power-off closed realize accurately in place under vibrational state, smooth working, electrical system, by primary heat transport system and composition of the control system, is provided with the safety devices such as overcurrent protection, short-circuit protection, lacuna protection, zero position protection, electric bell prompting in circuit, direction rail 21 is all provided with limit switch in length and breadth, the electronic chassis 10 of planar quadrature is arranged on the rail 21 of station 11 of the mobile trolley used track of middle frequency furnace 1 or No. two stations 12 of mobile trolley used track, for the supporting body of vibration material feeding 5, do longitudinally and the displacement in horizontal line orientation at the orthogonal electronic chassis 10 of effect lower plane of Motor Drive moment, pressing middle frequency furnace (1) the lander rail 21 that reinforced direction is arranged is on the contrary longitudinal rail, the rail 21 that is 90 degree direction quadrature arrangement at reinforced direction rail 21 is horizontal rail, the use that while replacing for middle frequency furnace 1 stove position, vibration charging entirety is moved to another stove displacement by a stove position, vertical, horizontal rail 21 is made grooving and disconnection process for orthogonal place, to reduce orthogonal moving resistance, guarantee operates steadily.The electrical system of the electronic chassis 10 of planar quadrature is by primary heat transport system and composition of the control system.In circuit, be provided with the safety devices such as overcurrent protection, short-circuit protection, lacuna protection, zero position protection, electric bell prompting, direction rail is all provided with limit switch in length and breadth, to guarantee the normal work of the electronic chassis 10 of planar quadrature.
12. as Fig. 1, shown in Fig. 2, described water-cooling system is by metal hose, multiple valve, the equipment compositions such as pipeline, be arranged on heat-resisting hopper 19, furnace roof petticoat pipe 3 and fuel burner nozzle 13 1 sides, can be to heat-resisting hopper 19, furnace roof petticoat pipe 3 and fuel burner nozzle 13 adopt circulating water with high-temperature flue gas contact part, on cooling water water inlet manifold wall, be provided with pressure transmitter and thermocouple (Pt100), on total water return pipeline, there is flowmeter, pressure transmitter and thermocouple (Pt100), on each cooling water branch road, be provided with metal hose, flow switch, ball valve, its pressure of supply water 0.5-0.6MPa, pressure of return water 0.25MPa, inflow temperature≤35 DEG C, return water temperature≤50 DEG C.
Embodiment 13: as shown in Figure 1 and Figure 2, described electric control system is by a set of complete industry control system, i.e. low-voltage distribution system; Vibration material feeding control system; Supplementary controlled system; PLC system and basic automation systems composition, can carry out data acquisition, data processing demonstration and automatic control, the necessary data of acceptance and transmitting system.
Claims (10)
1. a middle frequency furnace reinforced device of fluxing continuously, it is characterized in that furnace roof petticoat pipe (3) be movably arranged on middle frequency furnace (1) directly over, and be placed in mobile petticoat pipe (2), vibration material feeding (5) left end is connected with the furnace roof petticoat pipe (3) on middle frequency furnace (1) top, hopper (4) is arranged on vibration material feeding (5) top, rotation fume extractor (7) is arranged on the hopper seal cover (20) on cleaning shaft and vibration material feeding (5) top, heat-resisting hopper (19) is placed in vibration material feeding (5) the inner, combustion chamber (8) is placed in vibration material feeding (5) bottom, and be connected with second-time burning system (6), vibrating device (9) is arranged on heat-resisting hopper (19) cell body end, the electronic chassis of planar quadrature (10) is movably placed in vibration material feeding (5), physical pendulum suspension arrangement (18) is arranged on the electronic chassis of planar quadrature (10), water-cooling system is arranged on heat-resisting hopper (19), furnace roof petticoat pipe (3) and fuel burner nozzle (13) one sides, electric control system is arranged on vibration material feeding (5) rear end.
2. a kind of middle frequency furnace according to claim 1 reinforced device of fluxing continuously, it is characterized in that the vertical fixing material pressing device in described furnace roof petticoat pipe (3) top, furnace roof petticoat pipe (3) bottom cover body adopts non-magnetic stainless-steel sheet manufacture, furnace roof petticoat pipe (3) top adopts the manufacture of Q235 common iron, liner is refractory material, binder tup adopts non-magnetic heat-resistance stainless steel manufacture, in furnace roof petticoat pipe (3) bottom, the electronic chassis of planar quadrature (10) is installed, in the time that middle frequency furnace (1) turndown is tapped, furnace roof petticoat pipe (3) direction opposite side from middle frequency furnace (1) moves and exits, middle frequency furnace (1) is got back to and is smelted behind position, furnace roof petticoat pipe (3) is returning to middle frequency furnace (1) top position along rail (21), rail (21) is divided into two sections, one section is fixed on the upper plane of middle frequency furnace (1), another section is fixed on platform, two sections of rail (21) disconnect at middle frequency furnace (1) table and platform gap place, to keep the linearity of rail (21), in the time of turndown, two sections of rail (21) separate up and down, the tapping of middle frequency furnace (1) turndown is got back to and is smelted behind position, two sections of rail (21) turn back to again level, now, furnace roof petticoat pipe (3) can middle frequency furnace (1) above table left and right horizontal move, furnace roof petticoat pipe (3) is point electronic, hydraulic drive, the multiple move mode of strength transmission.
3. a kind of middle frequency furnace according to claim 1 reinforced device of fluxing continuously, it is characterized in that described vibration material feeding (5) is by heat-resisting hopper (19), hopper seal cover (20), the electronic chassis of planar quadrature (10), physical pendulum suspension arrangement (18), the parts compositions such as vibrating device (9), the section of heat-resisting hopper (19) is U-shaped, vibrating device (9) is arranged on heat-resisting hopper (19) cell body end, by physical pendulum suspension arrangement (18) integral hoisting on the electronic chassis of planar quadrature (10), vibration material feeding (5) is anterior to be connected with furnace roof petticoat pipe (3), top hopper seal cover (20) is connected with hopper (4), exhaust opening is connected with rotation fume extractor (7), form totally enclosed scrap steel preheating, continuous-feeding passage, vibration material feeding (5) is arranged on the platform of middle frequency furnace (1), rely on the electronic chassis of planar quadrature (10) of bottom to move as vertical and horizontal along platform rail (21), for preheating scrap with to evenly feed of middle frequency furnace (1), vibrating material feeding device (5) is arranged in the rightabout of middle frequency furnace (1) lander, also can be 90 degree or be less than 90 degree any direction arrange, when the maintenance of a middle frequency furnace (1) furnace shell, need to change to another stove position time, vibration material feeding (5) can rely on the electronic chassis of planar quadrature (10) of bottom to do transverse horizontal along platform rail (21) and move, move to No. two stations of mobile trolley used track (12) from a station of mobile trolley used track (11), realize a vibration material feeding (5) to the reinforced one drag two operation of two middle frequency furnaces (1).
4. according to the reinforced device of fluxing continuously of a kind of middle frequency furnace described in claim 1 or 3, it is characterized in that described hopper seal cover (20) is arranged on heat-resisting hopper (19) top, section is trapezoidal or domes, built-in liner heat proof material, hopper seal cover (20) is not joined and is shaken, between hopper seal cover (20) and heat-resisting hopper (19), adopt guard seal and labyrinth seal structure, make the cold blast rate entering in heat-resisting hopper (19) be reduced to minimum; On the top of hopper seal cover (20), 2-3 being installed props up or branched fuel burner nozzle (13), steel scrap in heat-resisting hopper (19) is heated to more than 500 DEG C, under the sustained combustion heating condition of fuel burner nozzle (13), the interior formation temperature of heat-resisting hopper (19) is the high-temperature atmosphere of 500 DEG C-800 DEG C, under the guiding of dust pelletizing system air-flow, penetrate the steel scrap bed of material in hopper from top to bottom, enter workshop cleaning shaft finally by rotation fume extractor (7); Described heat-resisting hopper (19) is made up of side plate, base plate and high-temperature material contact part; adopt the manufacture of heat-resistance and wear-resistance steel material; side plate is mesh-structured; base plate is fixed on crossbeam; employing tapered bar is fastening, and one end of tapered bar is goed deep into cell body inside and is connected with bearing pin, and the other end is at side plate outer setting spiral retaining mechanism; can be to base plate locking under non-stop-machine state, guaranteeing can timely fastening processing when the part such as base plate, side plate is loosening because temperature fluctuation produces.
5. according to the reinforced device of fluxing continuously of a kind of middle frequency furnace described in claim 1 or 3, it is characterized in that described vibrating device (9) has four eccentric shafts, comprise a pair of gyratory directions eccentric high speed shaft that speed is identical on the contrary mutually and another is to the rotating slow-speed shaft of reverse constant speed, the frequency ratio 1:2 of two pairs of eccentric shafts, adopt large play bearing, use molybdenum bisuphide grease lubrication, be arranged on hopper (4) cell body charging end, also can be arranged on hopper (4) cell body middle part, be formed by stacking by low-frequency vibration and dither, the centrifugal force of two pairs of eccentric shaft vertical direction is cancelled each other, and it is simultaneously anti-when the centrifugal force of horizontal direction, thereby produce disresonance type horizontal reciprocating movement, described hopper (4) is arranged on the top of vibration material feeding (5), in the horizontal direction near heat-resisting hopper (19) feed end, bottom has discharging opening to be connected with hopper seal cover (20), bearing is arranged on the electronic chassis of planar quadrature (10), for avoiding outside cold wind to enter in heat-resisting hopper from hopper (4) is suitable for reading, in hopper (4), two-layer flashboard is installed, upper and lower two feed bins are formed, wherein hopper (4) elevating hopper is integrated moving weighing type, structure is " V " font section, divide left and right two parts by " V " shape longitudinal axis, be arranged on respectively on two the electronic chassis of planar quadrature in left and right (10), rail (21) beam bottom under the electronic chassis of planar quadrature (10) is provided with LOAD CELLS, when filling after steel scrap in " V " font hopper (4), LOAD CELLS is to the automatic weighing system transmission of signal line item of going forward side by side, simultaneously, connect the blowing semaphore request of blanking bin, V font feed bin is outwards mobile respectively, open the bin blanking mouth of hopper (4), steel scrap is by conducting oneself with dignity along V font feed bin inclined-plane down sliding, enter in the feed bin of bottom, now feeding bin weighing system shows hole capital after selling all securities instruction, two of left and right feeding bin side plate is respectively by mobile in the middle of the electronic chassis of planar quadrature (10) band trend, until the feed opening Close All of feed bin, once feed in raw material, enter charging next time and discharge circulation, bottom feed bin is positioned at the bottom of feeding bin, after the steel scrap of feeding bin all enters blanking bin, material loading Hatch Opening is closed blanking Hatch Opening and is opened, steel scrap in blanking bin all enters in heat-resisting hopper (19), closes afterwards blanking Hatch Opening, enters next charging and discharge circulation, bottom feed bin flashboard is water-cooled slab construction, is opened and closed by electric pushrod control flashboard, below flashboard, be scrap heating face, temperature reaches more than 500 DEG C, and upper and lower feed bin gate alternately opens and closes, and to reduce mixed air quantity, improves scrap steel preheating temperature.
6. according to the reinforced device of fluxing continuously of a kind of middle frequency furnace described in claim 1 or 3, the base (17) that it is characterized in that described physical pendulum suspension arrangement (18) is arranged on the electronic chassis of planar quadrature (10), suspension rod (15) upper end is arranged in base (17) arc seat board above by half planchet (14) support level, suspension rod (15) lower end is being hung heat-resisting hopper (19) and is all being joined the object that shakes by nut (16), suspension rod (15) is high strength stud, also can freely swing around arcwall face with upper end half planchet (14) gun iron link, can evenly carry whole ginsengs object that shakes, there is the effect to vibrational system guiding and transmitting vibrations power simultaneously, lower end because of weight hang and under the effect of vibration force horizontal reciprocating movement, because double-amplitude maximum is only 25mm, so suspension rod (15) pendulum angle is very little, be horizontal vibration.
7. a kind of middle frequency furnace according to claim 1 reinforced device of fluxing continuously, it is characterized in that described second-time burning system (6) is by blower fan, motor, control valve station, multiple branch circuit flowmeter, electric butterfly valve, pipe network and fuel burner nozzle (13) composition, at heat-resisting hopper (19), the upper 2-3 that installs props up fuel burner nozzle (13), fuel burner nozzle (13) adopts spark plug automatic ignition, multiple branch circuit flowmeter is for detection of the air quantity of system, electric butterfly valve can regulate each section of intake of system in time, can effectively detect and control the flue gas atmosphere of heat-resisting hopper (19), rationally control gas nozzle (13) amount of blowing and be blown into air capacity number, external energy is fully burnt, make the heating-up temperature of steel scrap reach 500-800 DEG C.
8. a kind of middle frequency furnace according to claim 1 reinforced device of fluxing continuously, it is characterized in that described rotation fume extractor (7) is made up of two rotation petticoat pipes and a tube connector, petticoat pipe is welded with steel plate and section bar, inner lining refractory, floor installation has rotary support, can be in arbitrarily angled lower rotation, two rotation petticoat pipes be arranged on respectively on cleaning shaft and the hopper seal cover (20) of vibration material feeding (5) upper, between be communicated with tube connector hinge joint, the smoke discharging pipe of formation rotatable flexible, wherein be fixed on the following petticoat pipe of cleaning shaft, that petticoat pipe taking fixing point as pivot claims fixing rotary cover, and be fixed on petticoat pipe on the hopper seal cover (13) of vibration material feeding (5) except with fixing point rotation, also must move forward and backward with vibration material feeding (5), be called moving rotary petticoat pipe, tube connector between two petticoat pipes is circle or rectangular tube, having steel plate to roll forms, inner lining refractory heat-insulation and heat-preservation, one section of tube connector and fixing rotation petticoat pipe gun iron link, the other end stretches in moving rotary petticoat pipe casing, according to the change of distance sliding extension of two petticoat pipes, and with asbestos cloth to sealing gap.
9. according to the reinforced device of fluxing continuously of a kind of middle frequency furnace described in claim 1 or 3, it is characterized in that the described electronic chassis of planar quadrature (10) is made up of parts such as motor, reductor, shaft coupling, wheel group brake, electric control systems, the driving moment of motor is done forward and reversed operation by reductor, shaft coupling band motor car wheel, makes chassis be communicated with contained object longitudinally or laterally rail (21) motion, for making the normal work of vibration material feeding (5) and in location, any position, on the high speed shaft of motor and decelerator, brake being installed, brake is normally closed type, and when energising, brake block is opened, when power-off closed realize accurately in place under vibrational state, smooth working, electrical system, by primary heat transport system and composition of the control system, is provided with the safety devices such as overcurrent protection, short-circuit protection, lacuna protection, zero position protection, electric bell prompting in circuit, the rail of direction (21) is all provided with limit switch in length and breadth, the electronic chassis of planar quadrature (10) is arranged on the rail (21) of middle frequency furnace (1) station of mobile trolley used track (11) or No. two stations of mobile trolley used track (12), for the supporting body of vibration material feeding (5), under the effect of Motor Drive moment, electronic chassis (10) does longitudinally and the displacement in horizontal line orientation, pressing middle frequency furnace (1) the lander rail (21) that reinforced direction is arranged is on the contrary longitudinal rail, the rail (21) that is 90 degree direction quadrature arrangement at reinforced direction rail (21) is horizontal rail, the use that while replacing for middle frequency furnace (1) stove position, vibration charging entirety is moved to another stove displacement by a stove position, vertical, the orthogonal place of horizontal rail (21) makes grooving and disconnection process, to reduce orthogonal moving resistance, guarantee operates steadily.
10. a kind of middle frequency furnace according to claim 1 reinforced device of fluxing continuously, it is characterized in that described water-cooling system is by metal hose, multiple valve, the equipment compositions such as pipeline, be arranged on heat-resisting hopper (19), furnace roof petticoat pipe (3) and fuel burner nozzle (13) one sides, can be to heat-resisting hopper (19), furnace roof petticoat pipe (3) and fuel burner nozzle (13) adopt circulating water with high-temperature flue gas contact part, on cooling water water inlet manifold wall, be provided with pressure transmitter and thermocouple (Pt100), on total water return pipeline, there is flowmeter, pressure transmitter and thermocouple (Pt100), on each cooling water branch road, be provided with metal hose, flow switch, ball valve, its pressure of supply water 0.5-0.6MPa, pressure of return water 0.25MPa, inflow temperature≤35 DEG C, return water temperature≤50 DEG C, described electric control system is by a set of complete industry control system, i.e. low-voltage distribution system, vibration material feeding control system, supplementary controlled system, PLC system and basic automation systems composition, can carry out data acquisition, data processing demonstration and automatic control, the necessary data of acceptance and transmitting system.
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| CN106225493A (en) * | 2016-07-26 | 2016-12-14 | 河南省天利工业炉有限公司 | Smoking on heat treatment chassis and brake and hot baffle structure |
| CN107525408A (en) * | 2017-09-27 | 2017-12-29 | 大连重工机电设备成套有限公司 | Grate refining moveable collection cigarette charging combined unit and its method of work |
| CN107525408B (en) * | 2017-09-27 | 2023-08-01 | 大连重工机电设备成套有限公司 | Movable smoke collecting and feeding combined device for rocking furnace refining and working method thereof |
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| CN115572791A (en) * | 2022-10-19 | 2023-01-06 | 安徽闽建环保设备有限公司 | Intelligent bucket type scrap steel heating system |
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