CN215593106U - Movable dust hood for blast furnace taphole - Google Patents

Abstract

A movable dust hood for a blast furnace taphole belongs to the technical field of blast furnace dust removing equipment and is used for the dust removal and maintenance equipment of the blast furnace taphole. The technical scheme is as follows: the utility model discloses a blast furnace casting hole's top is installed to the longeron of door type support, install the track on the longeron, the dust excluding hood is by the dust cage, dust tube and support frame are constituteed, the top at the dust cage is connected to the dust collecting tube, the support frame is connected in the top of dust collecting tube, the walking wheel is installed on the support frame, the walking wheel is the roll cooperation with the track of door type support, the one end on the longeron of door type support is fixed to small-size hoist engine, the other end on the longeron of door type support is fixed to the assembly pulley, small-size hoist engine is connected with the one end of support frame through a wire rope, small-size hoist engine walks around the other end of assembly pulley and support frame through another wire rope and is connected. The utility model has simple structure and convenient use, is beneficial to the maintenance and repair of equipment, does not influence the normal dust removal operation, and ensures the normal operation of production and maintenance work.

Description

Movable dust hood for blast furnace taphole

Technical Field

The utility model relates to a movable dust hood for a blast furnace taphole, belonging to the technical field of blast furnace dust removal equipment.

Background

The dust removal of the blast furnace taphole is an important link of blast furnace production, and dust removal equipment facilities are basic guarantee for completing dust removal work. At present, blast furnace dust removal usually uses centralized dust removal equipment, and a suction type dust removal pipe of the centralized dust removal equipment is arranged to each dust removal point in a branching manner to perform centralized suction and exhaust treatment on overflowed smoke dust. Wherein, a suction type dust removal pipeline is arranged right above the blast furnace taphole and is used for sucking and discharging smoke dust. In order to prevent the diffusion of the smoke dust, a dust hood is usually installed below the dust removal pipeline to intensively suck and discharge the smoke dust so as to prevent the smoke dust from overflowing. In order to improve the dust removal effect, the dust removal cover is generally suspended at a position about 3m above the taphole. It is found in production that blast furnace taphole below is except dust collecting equipment, taphole has still arranged stifled taphole and has used mud gun machine and the iron notch drill of opening the taphole usefulness outward, equipment layout is comparatively concentrated, all be heavy equipment, it is frequent to maintain and repair, need bridge crane, machines such as crane arrive near the taphole operation, the dust excluding hood hangs in the position about the taphole top 3m, maintenance and maintenance work to directly influence taphole cooperation equipment, need demolish the dust excluding hood in the maintenance and repair process, install again during production, neither do benefit to equipment maintenance like this and overhaul, influence normal dust removal effect again, treat promptly and solve.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a movable dust hood for a blast furnace taphole, which can move left and right above the blast furnace taphole, is beneficial to equipment maintenance and repair, does not influence the normal dust removal effect, and ensures the normal operation of production and maintenance.

The technical scheme for solving the technical problems is as follows:

a movable dust hood of a blast furnace taphole comprises a dust hood, a door-shaped bracket, a small-sized winch and a steel wire rope, the walking wheel, the assembly pulley, the truss horizontal installation of door type support is in the top of blast furnace taphole, install the track along truss length on the truss of door type support, the dust excluding hood is by the dust cage, dust tube and support frame are constituteed, the upper end at the dust cage is connected to the dust collecting tube, the upper portion at the dust tube is connected to the support frame, the walking wheel is installed on the support frame of dust excluding hood, the walking wheel is the roll cooperation with the track of door type support, the one end on the truss of door type support is fixed to small-size hoist engine, the other end on the truss of door type support is fixed to the assembly pulley, small-size hoist engine is connected with the one end of the support frame of dust excluding hood through a wire rope, small-size hoist engine walks around the other end of the support frame of assembly pulley and dust excluding hood through another wire rope and is connected.

Above-mentioned portable dust excluding hood of blast furnace taphole, the dust cage of dust excluding hood is the square cone, the four sides of square cone dust excluding hood are trapezoidal respectively, the length on trapezoidal lower base is greater than the length on trapezoidal last base, the dust leg of dust excluding hood is square barrel, the lower extreme of dust leg is connected with the square cone top of dust excluding hood, the upper end opening of dust leg is relative with the dust removal pipeline sunction inlet of taphole top, the support frame of dust excluding hood is square frame, square frame's inboard is connected with the outer wall of dust leg respectively, the walking wheel is installed respectively in square frame's outside four corners, the walking wheel is located the track of door type support truss top.

Above-mentioned portable dust excluding hood of blast furnace taphole, door type support comprises collateral branch frame, girder, track, the collateral branch frame is rectangle steel frame, the lower extreme of two collateral branch frames is respectively through the steel built-in fitting vertical fixation on the cement basis on ground outside the taphole both sides platform, two girders are parallel, the both ends of two girders respectively with the upper end fixed connection of two collateral branch frames, be the clearance of dust excluding hood walking between two girders, two tracks parallel fixation respectively are on the upper surface of two girders, track upper portion is the U-shaped groove, the dust collecting pipe of dust excluding hood is located the clearance between two girders, the support frame of dust excluding hood is located the top of two girders, the walking wheel in support frame four corners inlays respectively in the U-shaped groove of two tracks, the walking wheel is the roll fit with orbital U-shaped groove.

The movable dust hood for the blast furnace taphole comprises a support, a steel wheel, a walking wheel shaft, a limiting plate, a fixing bolt and a shaft end cover, wherein the support is an N-shaped frame, the top surface of the support is connected with a support frame of the dust hood through the bolt, two side plates of the support are respectively provided with a transverse mounting shaft hole with one open end, the steel wheel is mounted on the walking wheel shaft, the steel wheel is positioned between the two side plates of the support, the walking wheel shaft is embedded in the mounting shaft hole, the limiting plate is clamped at the outer side of the walking wheel shaft, two ends of the limiting plate are fixed on the two side plates of the support through the fixing bolt, and the shaft end cover is fixed at two ends of the walking wheel shaft through the bolt.

The movable dust hood for the blast furnace taphole comprises a pulley support, a pulley shaft and pulleys, wherein the pulley support is composed of a bottom plate and an N-shaped frame, the bottom plate is fixed on the upper end surface of a door-shaped support, the N-shaped frame is welded on the bottom plate, the pulley shaft is vertically installed between two side plates of the N-shaped frame, the pulleys are sleeved on the pulley shaft, and a steel wire rope is wound on the pulleys.

The utility model has the beneficial effects that: two sides of a door-shaped support are fixed outside platforms on two sides of a taphole, a truss beam of the door-shaped support is positioned right above the taphole, a track is arranged on the truss beam of the door-shaped support, a support frame on the upper part of a dust hood can move on the track through a travelling wheel, a small winch is arranged at one end of the truss beam of the door-shaped support, a pulley block is arranged at the other end of the truss beam of the door-shaped support, the small winch is connected with the dust hood and the pulley block through a steel wire rope, and the small winch can drive the dust hood to move left and right through forward and reverse rotation.

The utility model has simple structure and convenient use, and when in production, the dust hood can be moved to the position above the tap hole to be opposite to the suction inlet of the dust removal pipeline above the tap hole so as to carry out dust removal operation; when the tapping hole is maintained and overhauled, the dust excluding hood is moved to the space outside the maintenance range, so that the maintenance and overhaul of the equipment are facilitated, the normal dust removal operation is not influenced, and the normal operation of production and maintenance is ensured.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a dust hood;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a front view of a support frame of the dust hood;

FIG. 5 is a side view of FIG. 4;

FIG. 6 is a bottom view of FIG. 4;

FIG. 7 is a front view of the gantry;

FIG. 8 is a side view of FIG. 7;

FIG. 9 is a top view of FIG. 7;

fig. 10 is a schematic structural view of a road wheel;

fig. 11 is a schematic view of a pulley block structure.

The figures are labeled as follows: the dust hood comprises a dust hood 1, a door-shaped support 2, a small-sized winch 3, a steel wire rope 4, a traveling wheel 5, a pulley block 6, a dust hood 7, a dust collecting pipe 8, a support frame 9, a traveling wheel mounting hole 10, a steel wire rope pull ring hole 11, a side support 12, a truss girder 13, a track 14, a U-shaped groove 15, a support 16, a steel wheel 17, a traveling wheel shaft 18, a limiting plate 19, a fixing bolt 20, a shaft end cover 21, a pulley support 22, a pulley shaft 23 and a pulley 24.

Detailed Description

The utility model consists of a dust hood 1, a door-shaped bracket 2, a small-sized winch 3, a steel wire rope 4, a traveling wheel 5 and a pulley block 6.

In the overall structure of the utility model, as shown in fig. 1, the trusses 13 of the portal frame 2 are horizontally installed above the taphole of the blast furnace, and the upper surfaces of the trusses 13 of the portal frame 2 are provided with rails 14 along the length of the trusses 13. Road wheels 5 are installed below the dust hood 1, the road wheels 5 can walk on a track 14 of the door-shaped support 2 to drive the dust hood 1 to move on the door-shaped support 2, so that dust can be removed in place during dust removal, and the dust hood can be moved out during maintenance of tapping hole equipment without influencing the maintenance of the equipment. The small-sized winch 3 is fixed at one end of the truss beam 13 of the door-shaped support 2, the pulley block 6 is fixed at the other end of the truss beam 13 of the door-shaped support 2, the small-sized winch 3 is connected with one end of the dust hood 1 through one steel wire rope 4, and the small-sized winch 3 is connected with the other end of the dust hood 1 through the pulley block which is bypassed by the other steel wire rope 4. When the small-sized winch 3 rotates, the dust excluding hood 1 is driven to move on the truss 13 of the door-shaped support 2 through the steel wire rope 4, and the small-sized winch 3 controls the moving direction of the dust excluding hood 1 through forward and reverse rotation.

Fig. 2 and 3 show that the dust hood 1 is composed of a dust hood 7, a dust collecting pipe 8 and a support frame 9. The dust collecting pipe 8 is connected with the upper end of the dust collecting cover 7, and the supporting frame 9 is connected with the upper part of the dust collecting pipe 8. The dust hood 7 of the dust hood 1 is in a square cone shape, four sides of the square cone-shaped dust hood 7 are respectively in a trapezoid shape, the length of the lower bottom edge of the trapezoid is larger than that of the upper bottom edge of the trapezoid, and the lower hood body of the dust hood 7 is connected with the dust collecting pipe 8 in a welding mode. The dust collecting pipe 8 is a square cylinder, the lower end of the dust collecting pipe 8 is connected with the square conical top of the dust collecting cover 7, and the upper end opening of the dust collecting pipe 8 is opposite to the dust suction inlet of the dust removing pipeline above the taphole. The dust collecting cover 7 covers the tap hole to recover the smoke dust, and the smoke dust is guided into a dust removing pipeline of the centralized dust removing system through the dust collecting pipe 8 above, so that the overflow of the smoke dust is avoided. The support frame 9 of the dust hood 1 is a square frame, and the inner side of the square frame is respectively connected with the outer wall of the dust collecting pipe 8 in a welding way.

Fig. 4, 5 and 6 show that the square frame of the supporting frame 9 is made by blanking channel steel, and the inner side of the square frame is respectively welded and fixed with the outer wall of the dust collecting pipe 8. Two opposite sides of a square frame of the support frame 9 are respectively provided with a channel steel, the other two opposite sides are respectively provided with two parallel channel steels, four corners of the two channel steels are respectively provided with four walking wheel mounting holes 10 which are respectively used for passing through bolts to mount four walking wheels 5. A steel wire rope ring pulling hole 11 is arranged in the middle of one side of the frame of the support frame 9 opposite to the small-sized winch 3, and the other side of the opposite side of the frame is provided with the same steel wire rope ring pulling hole 11 which is used for welding a hoisting ring for penetrating a steel wire rope.

Fig. 7, 8 and 9 show that the portal frame 2 is composed of side frames 12, trusses 13 and rails 14. The side supports 12 are rectangular steel frames, and the lower ends of the two side supports 12 are respectively and vertically fixed outside platforms at two sides of the taphole through steel embedded parts on a cement foundation on the ground. The two trussed beams 13 are parallel, two ends of the two trussed beams 13 are respectively fixed at the upper ends of the two side brackets 12, and a gap for the dust hood 1 to walk is formed between the two trussed beams 13. Two rails 14 are respectively fixed above the two trussed beams 13 in parallel, and the upper parts of the rails 14 are U-shaped grooves 15. Dust collecting tube 8 of dust excluding hood 1 is arranged in the clearance between two trussed beams 13, and the support frame 9 of dust excluding hood 1 is arranged in the top of two trussed beams 13, and the walking wheel 5 in support frame 9 four corners inlays respectively in the U-shaped groove 15 of two tracks 14, and walking wheel 5 is the rolling cooperation with the U-shaped groove 15 of tracks 14, drives and removes about portable dust excluding hood 1.

Fig. 10 shows that the travelling wheel 5 consists of a support 16, a steel wheel 17, a travelling wheel shaft 18, a limiting plate 19, a fixing bolt 20 and a shaft end cover 21. The support 16 is an N-shaped frame, the top surface of the support 16 is connected with the support frame 9 of the dust hood 1 through bolts, two side plates of the support 16 are respectively provided with a transverse mounting shaft hole with an opening at one end, a travelling wheel shaft 18 is embedded in the mounting shaft holes, a steel wheel 17 is mounted on the travelling wheel shaft 18, and the steel wheel 17 is positioned between the two side plates of the support 16. The limit plate 19 is clamped at the outer side of the traveling wheel shaft 18, two ends of the limit plate 19 are fixed on two side plates of the support 16 through fixing bolts 20, and after the traveling wheel shaft 18 is placed in the installation shaft hole, the limit plate 19 is clamped at the outer side of the traveling wheel shaft 18, so that the traveling wheel shaft 18 is fixed in the installation shaft hole and cannot move. When the steel wheel or the traveling wheel shaft 18 needs to be replaced, the limiting plate 19 is detached, and the traveling wheel shaft 18 can be taken out outwards.

Fig. 11 shows that the pulley block 6 includes a pulley support 22, a pulley shaft 23 and a pulley 24, the pulley support 22 is composed of a bottom plate and an N-shaped frame, the bottom plate is fixed on the upper end face of the door-shaped support 2, the N-shaped frame is welded on the bottom plate, the pulley shaft 23 is vertically installed between two side plates of the N-shaped frame, the pulley 24 is sleeved on the pulley shaft 23, and the steel wire rope 4 is wound on the pulley 24. When the dust hood is used, the direction of the steel wire rope 4 on one side of the dust hood 1 is changed through the pulley block 6, and the steel wire rope is folded back to the rope winding drum of the small-sized winch 3, so that the effect of pulling the dust hood 1 in a two-way mode is achieved.

The using process of the utility model is as follows:

before the dust hood is used, walking wheels 5 arranged on two sides of a supporting frame 9 of the dust hood 1 are meshed with a track 4 on the upper end face of a door-shaped support 2, two steel wire ropes 4 are fixed on a small-sized winch 3 rope winding drum at the upper end of the door-shaped support 2, the two steel wire ropes 4 are wound in the forward direction and the reverse direction respectively, one steel wire rope 4 is hung at the top of the left side of the dust hood 1, and the other steel wire rope 4 passes through a pulley block 6 and returns to be hung at the top of the right side of the dust hood 1.

When small-size hoist engine 3 transported clockwise, the wire rope of hanging on assembly pulley 6 right side is drawn into a serving section of thick bamboo, hangs wire rope 4 at the top of dust excluding hood 1 left side and is reverse around out a serving section of thick bamboo, and under the tensile force effect of right side wire rope 4, dust excluding hood 1 moves to the right side, pulls the wire rope 4 of winding out a serving section of thick bamboo on the left side simultaneously and moves right together.

When small-size hoist engine 3 anticlockwise transported, hang wire rope 4 at the top of dust excluding hood 1 left side and be drawn into a serving section of thick bamboo, hang wire rope 4 on assembly pulley 6 right side and be wound out a serving section of thick bamboo, under the tensile force effect of wire rope 4 on the left side, dust excluding hood 1 moves to the left side, drags the wire rope 4 that the right side was wound out a serving section of thick bamboo simultaneously and moves left together.

When the steel tapping hole is normally dedusted, the small-sized winch 3 is started to move the dedusting cover 1 to the position right above the steel tapping hole, the dust collecting pipe 8 on the upper part of the dedusting cover 1 is opposite to a smoke inlet of the dedusting pipeline, and smoke enters the dedusting pipeline through the dedusting cover 1 to perform normal dedusting operation.

When the tapping hole equipment needs to be maintained and overhauled, the small-sized winch 3 is started to move the dust hood 1 to a space outside the overhauling and maintaining range of the left side or the right side of the tapping hole, the equipment is maintained and overhauled, and after the maintenance is finished, the small-sized winch 3 is started to move the dust hood 1 back to the dust removing position.

One embodiment of the utility model is as follows:

the length of the lower part of the dust collection cover 7 of the dust removal cover 1 is 6.2m, the width is 6.2m, and the height is 1 m;

the length of the dust collecting pipe 8 of the dust hood 1 is 2m, the width is 2m, and the height is 2 m;

the supporting frame 9 of the dust hood 1 is a No. 14 channel steel, the length is 2615 mm and 2218mm respectively, the diameter of the travelling wheel mounting hole 10 is 16mm, and the diameter of the steel wire rope pull ring hole 11 is 20 mm;

the side bracket 12 of the door-shaped bracket 2 has the width of 2200mm and the height of 5600 mm;

the length of the truss girder 13 of the door-shaped bracket 2 is 14920mm, the width is 2368mm, and the height is 1220 mm;

the rail 14 of the door-shaped bracket 2 is I-shaped steel, and the width of the U-shaped groove 15 is 100 mm;

the model of the small-sized winch 3 is JD-1;

the diameter of the steel cord 4 is 9.3 mm.

Claims (5)

1. The utility model provides a portable dust excluding hood of blast furnace taphole which characterized in that: it comprises a dust hood (1), a door-shaped bracket (2), a small-sized winch (3), a steel wire rope (4), a walking wheel (5) and a pulley block (6), wherein a truss beam (13) of the door-shaped bracket (2) is horizontally arranged above a blast furnace taphole, a track (14) along the length of the truss beam (13) is arranged on the truss beam (13) of the door-shaped bracket (2), the dust hood (1) consists of a dust hood (7), a dust collecting pipe (8) and a support frame (9), the dust collecting pipe (8) is connected at the upper end of the dust hood (7), the support frame (9) is connected at the upper part of the dust collecting pipe (8), the walking wheel (5) is arranged on the support frame (9) of the dust hood (1), the walking wheel (5) is in rolling fit with the track (14) of the door-shaped bracket (2), the small-sized winch (3) is fixed at one end of the truss beam (13) of the door-shaped bracket (2), and the pulley block (6) is fixed at the other end of the truss beam (13) of the door-shaped bracket (2), the small-sized winch (3) is connected with one end of the support frame (9) of the dust hood (1) through one steel wire rope (4), and the small-sized winch (3) is connected with the other end of the support frame (9) of the dust hood (1) through another steel wire rope (4) and bypasses the pulley block (6).

2. The movable dust hood for a blast furnace taphole according to claim 1, characterized by: dust cage (7) of dust excluding hood (1) are the square taper, the four sides of square taper dust excluding hood (7) are trapezoidal respectively, the length on trapezoidal lower base is greater than the length on trapezoidal last base, dust tube (8) of dust excluding hood (1) are square barrel, the lower extreme of dust tube (8) is connected with the square taper top of dust excluding hood (7), the upper end opening of dust tube (8) is relative with the dust removal pipeline sunction inlet of taphole top, support frame (9) of dust excluding hood (1) are square frame, square frame's inboard is connected with the outer wall of dust tube (8) respectively, walking wheel (5) are installed respectively to square frame's outside four corners, walking wheel (5) are located on track (14) of truss (13) top of door type support (2).

3. The movable dust hood for a blast furnace taphole according to claim 1, characterized by: the door-shaped support (2) is composed of side supports (12), trussed beams (13) and rails (14), the side supports (12) are rectangular steel frames, the lower ends of the two side supports (12) are respectively and vertically fixed outside platforms on two sides of a taphole through steel embedded parts on a cement base on the ground, the two trussed beams (13) are parallel, two ends of the two trussed beams (13) are respectively and fixedly connected with the upper ends of the two side supports (12), a gap for walking of the dust hood (1) is formed between the two trussed beams (13), the two rails (14) are respectively and parallelly fixed on the upper surfaces of the two trussed beams (13), the upper part of each rail (14) is provided with a U-shaped groove (15), a dust collecting pipe (8) of the dust hood (1) is positioned in the gap between the two trussed beams (13), a support frame (9) of the dust hood (1) is positioned above the two trussed beams (13), walking wheels (5) at four corners of the support frame (9) are respectively embedded in the U-shaped grooves (15) of the two rails (14), the traveling wheels (5) are in rolling fit with the U-shaped grooves (15) of the tracks (14).

4. The movable dust hood for a blast furnace taphole according to claim 1, characterized by: the travelling wheel (5) is composed of a support (16), steel wheels (17), a travelling wheel shaft (18), limiting plates (19), fixing bolts (20) and shaft end covers (21), the support (16) is an N-shaped frame, the top surface of the support (16) is connected with a support frame (9) of the dust hood (1) through bolts, two side plates of the support (16) are respectively provided with a transverse installation shaft hole with one open end, the steel wheels (17) are installed on the travelling wheel shaft (18), the steel wheels (17) are located between the two side plates of the support (16), the travelling wheel shaft (18) is embedded in the installation shaft holes, the limiting plates (19) are clamped outside the travelling wheel shaft (18), the two ends of the limiting plates (19) are fixed on the two side plates of the support (16) through the fixing bolts (20), and the shaft end covers (21) are fixed at the two ends of the travelling wheel shaft (18) through bolts.

5. The movable dust hood for a blast furnace taphole according to claim 1, characterized by: the pulley block (6) comprises a pulley support (22), a pulley shaft (23) and a pulley (24), the pulley support (22) is composed of a bottom plate and an N-shaped frame, the bottom plate is fixed on the upper end face of the door-shaped support (2), the N-shaped frame is welded on the bottom plate, the pulley shaft (23) is vertically installed between two side plates of the N-shaped frame, the pulley (24) is sleeved on the pulley shaft (23), and the steel wire rope (4) is wound on the pulley (24).

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