CN100422348C

CN100422348C - Dual-lever four-hanging-point synchronous-driven blast furnace top down spouting distributing device

Info

Publication number: CN100422348C
Application number: CNB200410012120XA
Authority: CN
Inventors: 魏明义; 陈广全; 韩呈祥
Original assignee: SANHUAN VALVE CO Ltd SHIJIAZHUANG
Current assignee: SANHUAN VALVE CO Ltd SHIJIAZHUANG
Priority date: 2004-01-18
Filing date: 2004-01-18
Publication date: 2008-10-01
Anticipated expiration: 2024-01-18
Also published as: CN1641049A; UA80554C2; RU2355773C2; RU2004139131A

Abstract

The present invention relates to a material distributing device of a blast furnace roof chute, which is synchronously driven two levers and four hanging points. Two power arms are fixed to a rotating shaft, another two power arms are fixed to another rotating shaft, and the power arms are hinged with the four hanging points of a supporting ring through connecting rods. A roller is fixed to the supporting ring and matched with an anti-rotating guide rail installed on the inner wall of a tank body, and the seesaw motion of a supporting frame is formed by the connection of the power arms, the connecting rods and the supporting ring. The magnetic floating sealing ring is formed by arranging a deep hole in one end surface of a nodular cast iron annular part, and a permanent magnet is installed in the deep hole; one end surface of the permanent magnet is provided with a magnetism insolating pad, and the other end surface of the magnetic floating sealing ring utilizes the permanent magnet to let a nodular iron ring part to be adsorbed on an upper plane slot in a water sealing cover of a rotating sleeve barrel. Due to the adoption of double rotating shafts for symmetric drive, radial force generated in the up motion and radial force generated in the down motion of a towing loop are balanced out; because the supporting ring is driven by the four connecting rods, the deflection of the towing loop can not happen during the seesaw motion. The floating magnetic sealing ring is added for sealing on the basis of the existing sealing, and accordingly, sealing performance is greatly improved.

Description

The synchronously driven blast furnace furnace roof of double lever four hanging points channel distributor

Technical field

The present invention relates to a kind of channel distributor, belong to the blast furnace bell-less technical field that has distribution device.

Background technology

Channel distributor is the equipment that a kind of blast furnace adds charging, and existing channel distributor type of belt drive has planet differential type of belt drive, hydrostatic transmission form, wireline type of belt drive, chain gear form and mechanical transmission form.These distributors have cloth flexibly, evenly, same category of device compact construction in the past, and dependable performance obtains promoting on blast furnace once coming out, but all comes with some shortcomings.Planet differential transmission distributor complex structure, the cost height is safeguarded the cost of use height; Hydrostatic transmission for feeding material device hydraulic pressure auxiliary equipment system is huge, installs and uses the investment height; The wireline type of belt drive exists the not robust problem that wearing and tearing cause of twining; Though machinery simple lever type of belt drive is simple in structure, owing to be 2 liftings of simple lever, backing ring can produce radial force in up-and-down movement, cause the one-sided wearing and tearing of raceway, and control accuracy descends.And these device sealing effectiveness are not ideal.

Summary of the invention

Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, provides a kind of more reasonable structure, backing ring not produce radial force, do not have wearing and tearing, the device height size is less, sealing effectiveness is a good blast furnace furnace roof channel distributor to track is one-sided in up-and-down movement.

The technical scheme that the present invention solves its technical problem employing is: this blast furnace furnace roof channel distributor comprises the cylinder shape closure casing of being made up of casing, aqueous cold plate and upper top cover, by the motor reducer output gear and the last rotating bearing engagement that has on the inner upper top cover of being fixed in of external tooth that are fixed on the upper top cover, drive and last revolution supporting outer ring fixed turnbarrel rotation, chute is positioned at the bottom of turnbarrel, gudgeon by both sides links to each other with turnbarrel, constitutes the rotation of chute.Casing external motors step-down gear drives two rotating shafts in opposite directions or reverse sync swing, it is hinged that four power arms are loaded in two rotating shafts four suspension centres by connecting rod and backing ring respectively, anti-rotation guide rail on being fixed with roller on the backing ring and being loaded on cabinet wall cooperates, constitute pumping of carriage, backing ring is fixedlyed connected with the outer ring of turning down supporting, on the inner ring of turning down supporting the thumb wheel parts are arranged, thumb wheel on the thumb wheel parts matches with the vertical chute of turnbarrel outer wall, constituting turning down supporting inner ring and turnbarrel rotates synchronously, the gudgeon that is connected with chute is fixedlyed connected with crank respectively again, the bar shaped notch of the skeleton frame on the other end of crank is equipped with pulley and is fixed on turning down supporting inner ring matches, by pumping of towing loop, just reached the purpose that chute fascinates.Chute can be finished independent rotation like this, fascinates separately, not only rotates but also fascinate, and realizes fixed point, and is fan-shaped, monocycle and polycyclic distributing.

Adorn a sealing socket in aqueous cold plate external cylindrical surface shrink-fit, three road elastic sealing ring interference by the sealing socket middle part between sealing socket external cylindrical surface and the turnbarrel water seal cover inner cylinder face seal; Go up in sealing socket upper surface and the turnbarrel water seal cover and adopt the sealing of two roads between the plane, first road is the sealing of nitrogen ring-type curtain, and second road is the magnetic seal ring sealing of floating, and offers the twice ring groove, interior dress asbestos packing inside and outside the sealing socket cylindrical surface simultaneously; Offer the oil leab and the oilhole that communicate with dark ring groove respectively on the sealing socket.

The invention has the beneficial effects as follows: channel distributor is to drive two rotating shafts in opposite directions or the reverse sync swing by the motor drive speed reducer that is loaded on the casing outside finishing drive unit that chute fascinates, pass through power arm again, connecting rod and towing loop be four-point articulated to be finished, owing to adopted two rotating shaft symmetries to drive, the radial force that makes towing loop produce in moving up and down is cancelled each other, and because four connecting rods drive towing loop, make towing loop can not produce beat in moving up and down, in addition, owing to save one group of runner, make the device height can obtain bigger reduction, its operation stability is higher like this; On the basis of resilient seal, increase the magnetic seal ring sealing of floating in existing labyrinth seal, constitute the nitrogen-sealed ring air curtain of sealing socket upper surface and the whole compound seal of magnetic seal ring coexistence, thereby improved sealing property greatly, reduce the consumption of nitrogen effectively, prolonged the work-ing life of equipment.

Description of drawings

Fig. 1 is a structural representation of the present invention

Fig. 2 is the vertical view of Fig. 1

Fig. 3 is a schematic diagram of sealing device

Embodiment

With reference to accompanying drawing 1, accompanying drawing 2, the present invention includes the cylindrical enclosure body of casing 2 and aqueous cold plate 5, upper top cover 1 composition; Rotating bearing 16 on cylindrical enclosure body inside has, turnbarrel 17, chute 12, crank 11, skeleton frame 9, gudgeon 23, backing ring 6, thumb wheel parts 22, track 3, turning down supporting 7, inner last rotating bearing 16 is concentric with feed-pipe 19, last rotating bearing 16 inner rings are fixedlyed connected with upper top cover 1, fixedly connected with turnbarrel 17 in last rotating bearing 16 outer rings, have external tooth on the outer ring of last rotating bearing 16, with be installed on upper top cover 1 on have a motor the step-down gear output gear be meshed, 17 rotations of driven rotary sleeve, chute 12 links to each other with turnbarrel 17 by the gudgeon 23 of both sides, constitutes the rotation of chute 12; Be loaded on intravital two rotating shafts 15 of case, 20 is parallel to each other, rotating shaft 15, be fixed with power arm 21a on 20,21b, 21c, 21d, every power arm is hinged by connecting rod 14 and backing ring 6 again, backing ring 6 is fixedlyed connected with the outer ring of turning down supporting 7, vertical guideway on roller 4 being housed on the backing ring 6 and being loaded on casing 2 inwalls matches, be fixed with thumb wheel parts 22 on the inner ring of turning down supporting 7, thumb wheel 13 on the thumb wheel parts 22 matches with the vertical chute of turnbarrel 17 outer walls, 7 inner rings are supported in the formation turning down and turnbarrel 17 rotates synchronously, gudgeon 23 is fixedlyed connected with crank 11, and the other end of crank 11 is equipped with pulley and is fixed on turning down and supports the bar shaped notch of the skeleton frame 9 on 7 inner rings and match; Between turnbarrel 17 inwalls and feed-pipe 19 outer walls tightness system 18 is housed, between the bottom of turnbarrel 17 and the aqueous cold plate 5 tightness system 8 is housed.

The synchronously driven channel distributor of this double lever four hanging points, be fixed with two power arm 21a in the rotating

shaft

20,21b, be fixed with two power arm 21c in another rotating shaft 15,21d, hinged by connecting rod 14 with four suspension centres of backing ring 6, anti-rotation guide rail 3 on being fixed with roller 4 on the backing ring 6 and being loaded on cabinet wall cooperates, chute fascinate be loaded on the lateral motor reducer of casing drive two rotating shafts in opposite directions or reverse sync rotate, by power arm 21, connecting rod 14 is connected with backing ring 6, constitute pumping of carriage 6, backing ring 6 is fixedlyed connected with the outer ring of turning down supporting 7.The inner ring of turning down supporting 7 is connected with skeleton frame 9, and the gudgeon 23 that is connected with chute 12 cooperates with skeleton frame 9 bar-shaped troughs again by crank 11, constitutes fascinating of chute 12.

The external cylindrical surface bottom of sealing socket 31 and the bottom of inner cylinder face offer a shallow ring groove 34 respectively, offer two ring grooves on the upper surface of sealing socket 31, wherein nitrogen enters inside groove by nitrogen 46 and forms nitrogen annular seal air curtain 45, the magnetic seal ring 44 that the water jacket assembling is floated, be fitted with sealing-ring 35 in the groove 34, the external cylindrical surface middle part of sealing socket 31 offers the dark ring groove 36 in 3 roads, is fitted with opening elastic sealing ring 37 in the groove 36; The oil passage of offering on the sealing socket 31 38 is connected with oil gallery 39 on being opened in aqueous cold plate 5.

The magnetic seal ring 44 that floats is spheroidal graphite cast iron ring-type parts, be provided with the hole of 24 φ 10 dark 16 in one end, dress alnico magnets 47 in the hole, the end face of magnet is equipped with magnetism isolating spacer 48, and the other end utilizes permanent magnet 47 that spheroidal graphite cast iron ring-type part is adsorbed in the turnbarrel 17 water seal covers and goes up in the planar slot.

Claims

1. the synchronously driven blast furnace furnace roof of double lever four hanging points channel distributor, rotating bearing (16) on cylindrical enclosure body inside has, turnbarrel (17), chute (12), crank (11), skeleton frame (9), gudgeon (23), backing ring (6), thumb wheel parts (22), track (3), turning down supporting (7), last rotating bearing (16) inner ring is fixedlyed connected with upper top cover (1), fixedly connected with turnbarrel (17) in last rotating bearing (16) outer ring, have external tooth on the outer ring of last rotating bearing (16), with be installed on upper top cover (1) on have a motor the step-down gear output gear be meshed, driven rotary sleeve (17) rotation, chute (12) links to each other with turnbarrel (17) by the gudgeon (23) of both sides, it is characterized in that:

Be loaded on intravital two rotating shafts (15 of case, 20) parallel to each other, rotating shaft (15,20) be fixed with power arm (21a on, 21b, 21c, 21d), every power arm is hinged by connecting rod (14) and backing ring (6) again, backing ring (6) is fixedlyed connected with the outer ring of turning down supporting (7), vertical guideway on roller (4) being housed on the backing ring (6) and being loaded on casing (2) inwall matches, be fixed with thumb wheel parts (22) on the inner ring of turning down supporting (7), thumb wheel (13) on the thumb wheel parts (22) matches with the vertical chute of turnbarrel (17) outer wall, gudgeon (23) is fixedlyed connected with crank (11), and the bar shaped notch of the skeleton frame (9) on the other end of crank (11) is equipped with pulley and is fixed on turning down supporting (7) inner ring matches; Between turnbarrel (17) inwall and feed-pipe (19) outer wall tightness system (18) is housed, between the bottom of turnbarrel (17) and the aqueous cold plate (5) tightness system (8) is housed.

2. the synchronously driven blast furnace furnace roof of double lever four hanging points according to claim 1 channel distributor, it is characterized in that: fix two power arms (21a, 21b) in the rotating shaft (20), fix two power arms (21c, 21d) in another rotating shaft (15), hinged by connecting rod (14) with four suspension centres of backing ring (6), anti-rotation guide rail (3) on being fixed with roller (4) on the backing ring (6) and being loaded on cabinet wall cooperates, constitute pumping of backing ring (6), backing ring (6) is fixedlyed connected with the outer ring of turning down supporting (7).

3. the synchronously driven blast furnace furnace roof of double lever four hanging points according to claim 1 and 2 channel distributor, it is characterized in that described tightness system (8,18) is: adorn a sealing socket (31) in aqueous cold plate external cylindrical surface shrink-fit, three road elastic sealing ring interference by sealing socket (31) middle part between sealing socket (31) external cylindrical surface and turnbarrel (17) the water seal cover inner cylinder face seal; Go up in sealing socket upper surface and turnbarrel (17) the water seal cover and adopt the sealing of two roads between the plane, first road is the sealing of nitrogen ring-type curtain, and second road is the magnetic seal ring sealing of floating, and offers the twice ring groove, interior dress asbestos packing inside and outside the sealing socket cylindrical surface simultaneously; Offer the oil gallery (39) and the oilhole that communicate with dark ring groove respectively on the sealing socket (31).

4. the synchronously driven blast furnace furnace roof of double lever four hanging points according to claim 3 channel distributor, it is characterized in that: the external cylindrical surface bottom of sealing socket (31) and the bottom of inner cylinder face offer a shallow ring groove (34) respectively, offer two ring grooves on the upper surface of sealing socket (31), wherein nitrogen enters inside groove by nitrogen pore (46) and forms nitrogen annular seal air curtain (45), the magnetic seal ring (44) that the water jacket assembling is floated, be fitted with sealing-ring (35) in the groove (34), the external cylindrical surface middle part of sealing socket (31) offers the dark ring grooves in 3 roads (36), is fitted with opening elastic sealing ring (37) in the groove (36); The oil passage of offering on the sealing socket (31) (38) is connected with oil gallery (39) on being opened in aqueous cold plate (5).

5. the synchronously driven blast furnace furnace roof of double lever four hanging points according to claim 4 channel distributor, it is characterized in that: the magnetic seal ring (44) that floats is a spheroidal graphite cast iron ring-type part, be provided with the hole of 24 φ 10 dark 16 in one end, dress alnico magnets (47) in the hole, the end face of magnet is equipped with magnetism isolating spacer (48), and the other end utilizes permanent magnet (47) that spheroidal graphite cast iron ring-type part is adsorbed in turnbarrel (17) the water seal cover and goes up in the planar slot.