Refractory material lining structure for blast furnace

Abstract

The utility model discloses a refractory material lining structure for a blast furnace, which comprises a shell, a top shell arranged at the upper end of the shell, a feed hopper arranged at the upper end of the top shell, and a connecting mechanism, the connecting mechanism comprises supporting plates, rotating shafts, adjusting handles, bayonets and connecting columns, the supporting plates are evenly and fixedly connected to the lower end of the outer surface of the feeding hopper, the rotating shafts are rotatably connected to the interiors of the supporting plates, the adjusting handles are fixedly connected to the lower ends of the rotating shafts, the connecting columns are fixedly connected to the lower ends of the adjusting handles, and the bayonets are evenly formed in the upper end of the top shell; the middle portions of the connecting columns and the radially adjacent bayonets are installed in a matched mode, the lower ends of the connecting columns are fixedly connected with limiting discs, the connecting mechanism further comprises a rotating ring, the rotating ring is rotationally connected to the lower end of the outer surface of the feeding hopper, and the lower end of the outer surface of the rotating ring is fixedly connected with an outer gear ring. The feeding hopper can be quickly assembled and disassembled, the feeding work of the blast furnace is quickly and effectively assisted, and materials are prevented from impacting and damaging the inner wall of the furnace body.

Description

TECHNICAL FIELD

[0001] The utility model relates to blast furnace equipment technical field, concretely is a kind of refractory lining structure for blast furnace. BACKGROUND

[0002] Blast furnace is smelting furnace from iron ore refining pig iron, blast furnace body is divided into furnace throat, shaft, furnace waist, furnace belly, furnace hearth five parts from top to bottom.The blast furnace body structure (furnace wall) is composed of furnace shell, cooler and refractory lining, blast furnace is the main equipment of ironmaking, and the refractory lining structure for blast furnace is crucial for long life and efficient operation of blast furnace;

[0003] In prior art: the patent with authorized publication number CN209568122U discloses a kind of refractory lining structure, including furnace body, furnace top, stabilizer, fireproof layer, protective frame one, mounting column, arc-shaped connecting piece, plug, sliding block, strong tension spring and protective frame two, furnace top is assembled on the upper end surface of furnace body, stabilizer is installed on the lower end surface of furnace body, fireproof layer is installed on the annular side surface in furnace body, protective frame one is installed on the annular side surface of fireproof layer, protective frame two is assembled on the left side of protective frame one, arc-shaped connecting piece is installed on the annular side surface in fireproof layer, mounting column is installed at the connecting place of arc-shaped connecting piece and furnace body, plug is fixed on the left end surface of protective frame one, sliding block is fixed on the front and rear end surface of plug, strong tension spring is connected on the left end surface of plug, strong tension spring is fixed in the right side of protective frame two inside;

[0004] This kind of refractory lining structure has some problems, lack auxiliary feeding unit, directly feed material into the inside of furnace body through feeding port, the sustained and rapid falling of material can damage the inner wall of furnace body under impact, and further affect the ironmaking performance of furnace body. UTILITY MODEL CONTENT

[0005] The technical problem to be solved by the utility model is to overcome the defects of the prior art, provide a refractory lining structure for blast furnace, which can realize quick mounting and dismounting of the feeding hopper, quickly and effectively assist the feeding work of blast furnace, avoid damage to the inner wall of furnace body due to impact, and effectively solve the problems in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a refractory lining structure for blast furnace, including shell, the upper end of shell is provided with top shell, the upper end of top shell is provided with feeding hopper, further including connecting mechanism.

[0007] Connecting mechanism: it includes support plate, pivot, adjusting handle, bayonet and connecting column, the support plate is uniformly fixedly connected to the lower end of the outer surface of the feed hopper, the inside of the support plate is rotatably connected with the pivot, the lower end of the pivot is fixedly connected with the adjusting handle, the lower end of the adjusting handle is fixedly connected with the connecting column, the bayonet is uniformly arranged on the upper end of the top shell, the middle part of the connecting column is matched with the radially adjacent bayonet, the lower end of the connecting column is fixedly connected with the limiting disc, the quick mounting and dismounting of the feed hopper can be realized, the feeding work of the blast furnace is quickly and effectively assisted, and the inner wall of the furnace body is prevented from being damaged due to impact.

[0008] Further, the connecting mechanism further comprises a rotating ring, the rotating ring is rotatably connected to the lower end of the outer surface of the feed hopper, the lower end of the outer surface of the rotating ring is fixedly connected with an outer gear ring, the upper end of the pivot is fixedly connected with a driven gear, and the driven gear is rotatably connected with the outer gear ring, so that the synchronous position adjustment of the connecting column is realized.

[0009] Further, the connecting mechanism further comprises a support and a worm, the support is fixedly connected to the right end of the outer surface of the feed hopper, the worm is rotatably connected between the two supports, the upper end of the outer surface of the rotating ring is fixedly connected with a worm wheel, the worm wheel is rotatably connected with the worm, and the front end of the worm is fixedly connected with a knob, so that driving force is provided for the synchronous position adjustment of the connecting column.

[0010] Further, the upper end of the inner surface of the feed hopper is fixedly connected with a spiral blade, so that the feeding speed of the material is reduced.

[0011] Further, the inner wall of the shell is fixedly connected with evenly distributed support frames, the refractory plate is inserted between the two support frames, the inner portion of the refractory plate is provided with evenly distributed through holes, and the refractory plate is provided with evenly distributed rib grooves away from the center of the shell, so that the refractory plate is conveniently replaced, and space is provided for thermal expansion and cold contraction of the refractory plate.

[0012] Further, the lower end of the shell is fixedly connected with a mounting plate, and the inner portion of the mounting plate is provided with evenly distributed mounting holes, so that the mounting of the refractory lining structure for the blast furnace is facilitated.

[0013] Further, the lower end of the shell is fixedly connected with a mounting plate, and the inner portion of the mounting plate is provided with evenly distributed mounting holes, so that the mounting of the refractory lining structure for the blast furnace is facilitated.

[0014] Compared with the prior art, the refractory lining structure for the blast furnace has the following advantages:

[0015] The worm gear mechanism drives the driving gear, and then the adjusting handle is synchronously rotated, and then the centering distance of the connecting column is adjusted, the connecting column is clamped into the corresponding clamping port, and under the limiting effect of the limiting disc, the relative position of the feeding hopper and the top shell is locked, the feeding hopper is quickly assembled and disassembled, the feeding work of the blast furnace is quickly and effectively assisted, and the material is prevented from being damaged due to impact on the inner wall of the blast furnace. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structure schematic view of the utility model;

[0017] Figure 2 It is a sectional structure schematic view of the utility model;

[0018] Figure 3 It is a sectional structure schematic view of the upper side of the utility model;

[0019] Figure 4 It is an enlarged structure schematic view of the A place of the utility model.

[0020] In the figure: 1 shell, 2 top shell, 3 connecting mechanism, 31 rotating ring, 32 support plate, 33 rotating shaft, 34 adjusting handle, 35 clamping port, 36 support, 37 worm, 38 connecting column, 4 feeding hopper, 5 spiral piece, 6 heat insulation clay layer, 7 heat insulation brick layer, 8 corrosion-resistant layer, 9 support frame, 10 refractory plate, 11 through hole, 12 mounting plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figures 1-4 The embodiment provides a technical scheme: a refractory lining structure for a blast furnace, which comprises a shell 1, the upper end of the shell 1 is provided with a top shell 2, the upper end of the top shell 2 is provided with a feeding hopper 4, and further comprises a connecting mechanism 3.

[0023] The connecting mechanism 3 comprises a support plate 32, a rotating shaft 33, an adjusting handle 34, a bayonet 35 and a connecting column 38, the support plate 32 is uniformly and fixedly connected to the lower end of the outer surface of the feeding hopper 4, the inner part of the support plate 32 is rotationally connected with the rotating shaft 33, the lower end of the rotating shaft 33 is fixedly connected with the adjusting handle 34, the lower end of the adjusting handle 34 is fixedly connected with the connecting column 38, the bayonet 35 is uniformly arranged on the upper end of the top shell 2, the middle part of the connecting column 38 is matched and installed with the radially adjacent bayonet 35, the lower end of the connecting column 38 is fixedly connected with a limiting disc, the connecting mechanism 3 further comprises a rotating ring 31, the rotating ring 31 is rotationally connected to the lower end of the outer surface of the feeding hopper 4, the lower end of the outer surface of the rotating ring 31 is fixedly connected with an external gear ring, the upper end of the rotating shaft 33 is fixedly connected with a driven gear, the driven gear is meshingly connected with the external gear ring, the connecting mechanism 3 further comprises a support 36 and a worm 37, the support 36 is fixedly connected to the right end of the outer surface of the feeding hopper 4, the worm 37 is rotationally connected between the two supports 36, the upper end of the outer surface of the rotating ring 31 is fixedly connected with a worm wheel, the worm wheel is meshingly connected with the worm 37, the front end of the worm 37 is fixedly connected with a knob, the upper end of the inner surface of the feeding hopper 4 is fixedly connected with the spiral blade 5, the feeding hopper 4 is placed on the upper end of the top shell 2, and then the worm 37 is rotated through the knob, the rotation of the worm 37 drives the rotation of the worm wheel, and the rotation of the worm wheel further drives the rotation of the rotating ring 31, the rotation of the rotating ring 31 drives the rotation of the external gear ring, the rotation of the external gear ring drives the rotation of the four gears, the rotation of the gears drives the rotation of the radially adjacent rotating shaft 33, the rotation of the rotating shaft 33 drives the rotation of the radially adjacent adjusting handle 34, the adjusting handle 34 rotates around the corresponding central axis of the rotating shaft 33 towards the center of the outer shell 1, and then drives the radially adjacent connecting column 38 to move towards the center of the outer shell 1, the connecting column 38 is clamped with the corresponding bayonet 35, and the limiting disc is in contact with the top shell 2 to limit the vertical position of the connecting column 38, so as to realize the quick and stable connection between the feeding hopper 4 and the top shell 2, after the connection is stable, the materials are put into the inner part of the feeding hopper 4, under the buffering action of the spiral blade 5, the betting speed of the materials is reduced, and then falls into the inner part of the outer shell 1, and meanwhile, the materials are prevented from damaging the inner wall of the furnace body due to impact;

[0024] The shell 1 and the top shell 2 are provided with a heat insulation clay layer 6 between the inside, the heat insulation clay layer 6 is provided with a heat insulation brick layer 7 near one end of the center of the shell 1, the main function of the heat insulation clay layer 6 and the heat insulation brick layer 7 is to insulate the high temperature heat inside the blast furnace, reduce the heat transfer to the blast furnace shell. This not only can reduce the temperature of the blast furnace shell, prevent the shell from deforming or damaging due to high temperature, but also can reduce the heat loss, improve the thermal efficiency of the blast furnace, the heat insulation brick layer 7 is provided with a corrosion-resistant layer 8 near one end of the center of the shell 1, the corrosion-resistant layer 8 is an aluminum carbon brick layer, the corrosion-resistant layer 8 can resist chemical corrosion, prevent slag iron penetration, improve the stability of the blast furnace, the inner wall of the shell 1 is fixedly connected with uniformly distributed support frames 9, the transversely adjacent two support frames 9 are all inserted with fire-resistant plates 10, the fire-resistant plates 10 are composed of high-alumina refractory bricks with excellent spalling resistance, the inside of the fire-resistant plates 10 are all provided with uniformly distributed through holes 11, the fire-resistant plates 10 are all provided with uniformly distributed rib grooves away from one end of the center of the shell 1, the fire-resistant plates 10 can reduce the thermal shock and chemical corrosion suffered by the furnace shell and other metal structures, thereby prolonging the overall service life of the blast furnace, the fire-resistant plates 10 can maintain the physical and chemical stability of the reaction in the blast furnace, ensure the smooth progress of the smelting process, at the same time, the fire-resistant plates 10 have good heat preservation performance, can reduce the heat loss in the blast furnace, the lower end of the shell 1 is fixedly connected with a mounting plate 12, the inside of the mounting plate 12 is provided with uniformly distributed mounting holes.

[0025] The working principle of the refractory lining structure for blast furnace provided by the utility model is as follows: in working, personnel stably connects the mounting hole in the installation plate 12 with the threaded hole of the working plane through the bolt, and then realizes the stable installation of the shell 1, the top shell 2 and other mechanisms, after stable installation, personnel places the feeding hopper 4 on the upper end of the top shell 2, and then personnel rotates the worm 37 through the knob, the rotation of the worm 37 drives the rotation of the worm wheel, and then drives the rotation of the rotating ring 31, the rotation of the rotating ring 31 drives the rotation of the external tooth ring, the rotation of the external tooth ring drives the rotation of the four gears, the rotation of the gears drives the rotation of the adjacent shafts 33 in the radial direction, the rotation of the shafts 33 drives the rotation of the adjacent adjusting handles 34 in the radial direction, the adjusting handles 34 rotate around the corresponding central axes of the shafts 33 towards the center of the shell 1, and then drive the movement of the adjacent connecting columns 38 towards the center of the shell 1, the connecting columns 38 are all clamped with the corresponding sockets 35, and the limiting disc contacts the top shell 2 to limit the connecting columns 38 vertically, realizing the quick and stable connection of the feeding hopper 4 and the top shell 2, after stable connection, personnel pours the material into the feeding hopper 4, under the buffering effect of the spiral blade 5, the betting speed of the material is reduced, and then the material falls into the shell 1, meanwhile, the material is prevented from damaging the inner wall of the furnace body by impact, the refractory plate 10 can reduce the thermal shock and chemical corrosion of the furnace shell and other metal structures, thereby prolonging the overall service life of the blast furnace, the refractory plate 10 can keep the physical and chemical stability of the reaction in the blast furnace, ensure the smooth progress of the smelting process, meanwhile, the refractory plate 10 has good heat preservation performance, can reduce the heat loss in the blast furnace, the main functions of the heat insulation clay layer 6 and the heat insulation brick layer 7 are to insulate the high temperature heat in the blast furnace and reduce the heat transfer to the blast furnace shell, which not only can reduce the temperature of the blast furnace shell and prevent the deformation or damage of the shell due to high temperature, but also can reduce the heat loss and improve the thermal efficiency of the blast furnace, the corrosion-resistant layer 8 can resist chemical corrosion and prevent slag iron penetration, and improve the stability of the blast furnace.

[0026] The above only describes the embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion according to the content of the utility model specification and drawings, or direct or indirect application in other related technical fields, are all included in the patent protection range of the utility model.

Claims

1. A refractory lining structure for a blast furnace, comprising an outer shell (1), the upper end of which is provided with a top shell (2), the upper end of which is provided with a feed hopper (4), characterized in that: Also include connecting mechanism (3) ; Connecting mechanism (3): it includes support plate (32), pivot (33), adjusting handle (34), bayonet (35) and connecting column (38), the support plate (32) is uniformly fixedly connected to the lower end of the outer surface of feed hopper (4), the inside of support plate (32) is rotatably connected with pivot (33), the lower end of pivot (33) is fixedly connected with adjusting handle (34), the lower end of adjusting handle (34) is fixedly connected with connecting column (38), bayonet (35) is uniformly arranged on the upper end of top shell (2), the middle part of connecting column (38) is matched and installed with radially adjacent bayonet (35), the lower end of connecting column (38) is fixedly connected with limit disc.

2. A refractory lining structure for a blast furnace according to claim 1, characterized in that: The connecting mechanism (3) further comprises a rotating ring (31), the rotating ring (31) is rotatably connected to the lower end of the outer surface of the feed hopper (4), the lower end of the outer surface of the rotating ring (31) is fixedly connected with an external gear ring, the upper end of the pivot (33) is fixedly connected with a driven gear, and the driven gear is connected with the external gear ring.

3. A refractory lining structure for a blast furnace as claimed in claim 2, characterized in that: The connecting mechanism (3) further comprises a support (36) and a worm (37), the support (36) is fixedly connected to the right end of the outer surface of the feed hopper (4), the worm (37) is rotatably connected between the two supports (36), the upper end of the outer surface of the rotating ring (31) is fixedly connected with a worm wheel, the worm wheel is connected with the worm (37), and the front end of the worm (37) is fixedly connected with a knob.

4. A refractory lining structure for a blast furnace as claimed in claim 1, wherein: The upper end of the inner surface of the feed hopper (4) is fixedly connected with a spiral blade (5).

5. A refractory lining structure for a blast furnace as claimed in claim 1, wherein: The inner part of the shell (1) and the top shell (2) is provided with a heat insulation clay layer (6), one end of the heat insulation clay layer (6) close to the center of the shell (1) is provided with a heat insulation brick layer (7), and one end of the heat insulation brick layer (7) close to the center of the shell (1) is provided with a corrosion-resistant layer (8).

6. A refractory lining structure for a blast furnace as claimed in claim 1, wherein: The inner wall of the shell (1) is fixedly connected with uniformly distributed support frames (9), fireproof plates (10) are inserted between two horizontally adjacent support frames (9), the inside of the fireproof plate (10) is provided with uniformly distributed through holes (11), and the end of the fireproof plate (10) away from the center of the shell (1) is provided with uniformly distributed rib grooves.

7. A refractory lining structure for a blast furnace as claimed in claim 1, wherein: The lower end of the shell (1) is fixedly connected with a mounting plate (12), and the inside of the mounting plate (12) is provided with uniformly distributed mounting holes.

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