CN102980392B - Composite reinforced rotary kiln inner liner - Google Patents
Composite reinforced rotary kiln inner liner Download PDFInfo
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- CN102980392B CN102980392B CN201210573351.2A CN201210573351A CN102980392B CN 102980392 B CN102980392 B CN 102980392B CN 201210573351 A CN201210573351 A CN 201210573351A CN 102980392 B CN102980392 B CN 102980392B
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- refractory brick
- cylindrical shell
- rotary kiln
- inner liner
- composite reinforced
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- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The invention discloses a composite reinforced inner liner of a rotary kiln, which comprises a plurality of refractory bricks fixed on a barrel. The refractory bricks are divided into more than two groups in the inner circumferential direction of the barrel; a casting strip is arranged between each two adjacent groups of the refractory bricks; the refractory bricks are divided into more than two sections in the axial direction of the barrel; and a casting ring is arranged between each two adjacent sections of the refractory bricks. The composite reinforced inner liner of the rotary kiln has the advantages of simple and compact structure, low cost, convenience in installation, and safety and reliability in use.
Description
Technical field
The present invention relates generally to rotary kiln field, refers in particular to a kind of composite reinforced liner being applicable to rotary kiln.
Background technology
Rotary kiln refers to rotary calcining kiln (being commonly called as rotary kiln), can be divided into cement kiln, chemical metallurgy kiln and limekiln by material handling difference.Cement kiln is mainly used in calcination of cement clinker, point dry production cement kiln and the large class of wet production cement kiln two.Chemical metallurgy kiln is then mainly used in the poor iron ore magnetic roasting of metallurgy industry steel plant, chromium or josephinite oxidizing roasting, refractory factory roasting high-aluminium vanadine ore deposit and the class mineral such as aluminium manufacturer's roasting grog or aluminium hydroxide, chemical plant roasting chrome ore and chromite ore fine.Limekiln (i.e. active lime kiln) is for the active lime of roasting steel plant, ferroalloy works and light dolomite.In steel industry now, day by day universal along with the decline of sintering process and acid pellet and direct-reduction pelletizing process, rotary kiln has become the important process units of one very important in process for producing steel and iron.
In prior art, have practitioner to propose a kind of kiln lining structure, as shown in Figure 1, Figure 2 and Figure 3, this kiln lining structure comprises some blocks of refractory brick 2, and every block refractory brick 2 is all fixed on the cylindrical shell 1 of rotary kiln by anchoring piece 3; Wherein, one end of anchoring piece 3 is provided with two hooks and hooks in the hook hole of adjacent two refractory brick 2 respectively, and the other end of anchoring piece 3 is for being welded on cylindrical shell 1.Along the excircle direction of cylinder of rotary kiln 1, refractory brick 2 is divided into several sections at the hoop of cylindrical shell 1 in one week, is connected by pouring belt 4 between adjacent two sections of refractory brick 2.The anchor studs 5 of more than of being welded on cylindrical shell 1 is provided with in pouring belt 4.
Above-mentioned cylinder of rotary kiln inner lining structure has the following disadvantages: on the axial direction (length direction) of cylinder of rotary kiln 1, refractory brick 2 is separated with pouring material 4, refractory brick 2 at length direction without fixing means, only anchoring piece 3 is had to fix at circumferencial direction, this makes the entirety of refractory brick 2 be shifted in the axially generation of cylindrical shell 1 by causing rotary kiln to be easy in process of production, produces relative displacement simultaneously and between rotary kiln; More seriously, even can cause de-kiln (refractory brick 2 has departed from the constraint of anchoring piece 3, with rotary kiln to be rotated in axis, circumferencial direction all asynchronous), the danger such as the kiln that collapses (because anchoring piece 3 is destroyed, refractory brick 2 directly large area collapses).
Summary of the invention
The technical problem to be solved in the present invention is just: the technical problem existed for prior art, the invention provides a kind of simple and compact for structure, with low cost, easy for installation, more safe and reliable composite reinforced inner liner of rotary kiln of use.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of composite reinforced inner liner of rotary kiln, comprise the multiple refractory brick be fixed on cylindrical shell, inner periphery direction refractory brick along cylindrical shell is divided into more than two, pouring belt is provided with between two adjacent groups refractory brick, axis direction refractory brick along cylindrical shell is divided into more than two sections, is provided with and builds ring between adjacent two sections of refractory brick.
As a further improvement on the present invention:
Described to build ring be more than two circles by cast-in-place piece with refractory brick circulus alternately.
Building the axis direction of ring, described cast-in-place piece with refractory brick be alternately.
Arrange the reinforcement gusset of more than a piece in described cast-in-place piece, described reinforcement gusset is arranged along the axis direction of cylindrical shell.
The cross section of described reinforcement gusset is rectangle or trapezoidal or trapezoidal combination shape with rectangle or circular arc.
Described in every block, refractory brick is all fixed on the cylindrical shell of rotary kiln by anchoring piece, and one end of described anchoring piece is provided with two hooks and hooks in the hook hole of adjacent two blocks of refractory brick respectively, and the other end of described anchoring piece is for being welded on cylindrical shell.
Described in every block, refractory brick is all fixed on the cylindrical shell of rotary kiln by anchoring piece, and one end of described anchoring piece is provided with two hooks and hooks in the hook hole of adjacent four blocks of refractory brick respectively, and the other end of described anchoring piece is for being welded on cylindrical shell.
Along the circumferencial direction of described cylindrical shell, connected by pouring belt between described two adjacent groups refractory brick, described pouring belt is fixed on cylindrical shell, is provided with the anchor studs of more than of being fixedly arranged on cylindrical shell in described pouring belt.
Compared with prior art, the invention has the advantages that: the composite reinforced inner liner of rotary kiln of the present invention, simple and compact for structure, with low cost, easy for installation, the fire-resistant brick not only making to divide into groups in cylindrical shell radial direction, afterbody all have pouring belt to compress, and also to utilize at the refractory brick of drum shaft upwards segmentation and build ring and make it conscientiously compress, facilitate most possibly on rotary kiln and further combine closely between kiln body and refractory brick, also greatly reduce machining accuracy and the difficulty of construction of refractory brick.In addition, what upwards add in drum shaft builds the effect that ring also serves thrust, prevents refractory brick displacement in the axial direction.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of inner liner of rotary kiln circumference in prior art.
Fig. 2 is the sectional structure schematic diagram at A-A place in Fig. 1.
Fig. 3 is the structure for amplifying schematic diagram at B place in Fig. 1.
Fig. 4 is the sectional structure schematic diagram of inner liner of rotary kiln circumference of the present invention.
Fig. 5 is the sectional structure schematic diagram at C-C place in Fig. 4.
Fig. 6 is the sectional structure schematic diagram at D-D place in Fig. 5.
Fig. 7 is the structure for amplifying schematic diagram at G place in Fig. 4.
Fig. 8 is the mounting structure schematic diagram strengthening gusset in the present invention.
Fig. 9 is the sectional structure schematic diagram that in embody rule example, the first strengthens gusset.
Figure 10 is the sectional structure schematic diagram that in embody rule example, the second strengthens gusset.
Figure 11 is the sectional structure schematic diagram that in embody rule example, the third strengthens gusset.
Figure 12 is the sectional structure schematic diagram of the 4th kind of reinforcement gusset in embody rule example.
Figure 13 is the single brick structure schematic diagram utilizing an anchoring piece to connect two blocks of refractory brick in embody rule example.
Figure 14 is the single brick structure schematic diagram utilizing an anchoring piece to connect four blocks of refractory brick in embody rule example.
Figure 15 is the schematic top plan view that when utilizing an anchoring piece to connect two blocks of refractory brick in embody rule example, adjacent two blocks of refractory brick is connected with anchoring piece.
Figure 16 is the schematic top plan view that when utilizing an anchoring piece to connect four blocks of refractory brick in embody rule example, adjacent two blocks of refractory brick is connected with anchoring piece.
Marginal data:
1, cylindrical shell; 2, refractory brick; 3, anchoring piece; 4, pouring belt; 5, anchor studs; 6, gusset is strengthened; 7, ring is built; 8, cast-in-place piece.
Detailed description of the invention
Below with reference to Figure of description and specific embodiment, the present invention is described in further details.
As shown in Figure 4 to 7, composite reinforced inner liner of rotary kiln of the present invention, comprises the multiple refractory brick 2 be fixed on cylindrical shell 1, and every block refractory brick 2 is all fixed on the cylindrical shell 1 of rotary kiln by anchoring piece 3; Wherein, one end of anchoring piece 3 is provided with two hooks and hooks in the hook hole of adjacent two refractory brick 2 respectively, and the other end of anchoring piece 3 is for being welded on (see Figure 13 and Figure 15) on cylindrical shell 1; In other embodiments, can also be provided with two hooks in one end of anchoring piece 3 and hook in the hook hole of adjacent four blocks of refractory brick 2 respectively, the other end of anchoring piece 3 is for being welded on (see Figure 14 and Figure 16) on cylindrical shell 1.Inner periphery direction refractory brick 2 along cylindrical shell 1 is divided into more than two, along the circumferencial direction of cylindrical shell 1, is provided with pouring belt 4 between two adjacent groups refractory brick 2, is namely connected by pouring belt 4 between two adjacent groups refractory brick 2.Pouring belt 4 is fixed on cylindrical shell 1, is provided with the anchor studs 5 of more than of being welded on cylindrical shell 1 in pouring belt 4.In the present invention, the axis direction refractory brick 2 along cylindrical shell 1 is divided into more than two sections (usual 2-3 sections), is provided with and builds ring 7 between adjacent two sections of refractory brick 2.
In the present embodiment, building ring 7 is that two circles are by cast-in-place piece 8 and refractory brick 2 circulus alternately.Further, building the axis direction of ring 7, cast-in-place piece 8 is alternately with refractory brick 2.Between two loop structures, cast-in-place piece 8 same with refractory brick 2 implements alternately, so just makes cast-in-place piece 8 in this two loops structure to form quincuncial being crisscross arranged with the position of refractory brick 2.
As shown in Figure 8, in the present embodiment, the reinforcement gusset 6 of more than a piece is set further in cast-in-place piece 8, strengthens gusset 6 and arrange along the axis direction of cylindrical shell 1.When embody rule, can select according to actual needs to strengthen gusset 6, strengthen the cross section of gusset 6 can be rectangle as shown in Figure 9 or for as shown in figure 11 trapezoidal for trapezoidal and rectangle as shown in Figure 10 combination shape or be circular arc as shown in figure 12.Be appreciated that protection scope of the present invention is not limited to above-mentioned limited several shapes.
The structure of inner liner of rotary kiln of the present invention, 2, the refractory brick not only making to divide into groups in cylindrical shell 1 radial direction, afterbody all have pouring belt 4 to compress, and also to utilize at the refractory brick 2 of cylindrical shell 1 axially segmentation and build ring 7 and make it conscientiously compress, facilitate most possibly on rotary kiln and further combine closely between kiln body and refractory brick 2, also greatly reduce machining accuracy and the difficulty of construction of refractory brick 2.In addition, what axially add at cylindrical shell 1 builds the effect that ring 7 also serves thrust, prevents refractory brick 2 displacement in the axial direction.Simultaneously, this builds ring 7 and utilizes refractory brick 2 and cast-in-place piece 8 structure adopting position to be crisscross arranged also to make to build to repair when breakage appears in ring 7 again and get up relatively easily, only need one piece that fills up damage, before avoiding, need to destroy the patch work wasted time and energy that whole piece is all beaten again again.
Adopt said structure according to the position of building ring 7 in rotary kiln position while welding respective flexible adjustment with it, can be pressed in by weld seam to greatest extent and build in ring 7, reduce the installation difficulty of refractory brick 2.Finally, every bar builds the interior reinforcement gusset 6 arranged of ring 7 while strengthening thrust effect further, also add the intensity of building ring 7, can adapt to high temperature, the operating mode of impacting that rubs more more well, improve the life-span of whole kiln liner.As can be seen here, the refractory brick 2 that composite reinforced furnace lining structure of the present invention efficiently solves the existence of original furnace lining is easily shifted, and the problem of insufficient strength, improves rotary kiln liner life-span and safety coefficient, and more original kiln lining structure is safer, reliable, practical.
Below be only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, should be considered as protection scope of the present invention.
Claims (6)
1. a composite reinforced inner liner of rotary kiln, comprise the multiple refractory brick (2) be fixed on cylindrical shell (1), inner periphery direction refractory brick (2) along cylindrical shell (1) is divided into more than two, pouring belt (4) is provided with between two adjacent groups refractory brick (2), it is characterized in that: the axis direction refractory brick (2) along cylindrical shell (1) is divided into more than two sections, be provided with between adjacent two sections of refractory brick (2) and build ring (7); Described ring (7) of building is that more than two circles are by cast-in-place piece (8) and refractory brick (2) circulus alternately; Building the axis direction of ring (7), described cast-in-place piece (8) and refractory brick (2) are alternately.
2. composite reinforced inner liner of rotary kiln according to claim 1, is characterized in that: the reinforcement gusset (6) arranging more than a piece in described cast-in-place piece (8), and described reinforcement gusset (6) is arranged along the axis direction of cylindrical shell (1).
3. composite reinforced inner liner of rotary kiln according to claim 2, is characterized in that: the cross section of described reinforcement gusset (6) is rectangle or trapezoidal or trapezoidal combination shape with rectangle or circular arc.
4. according to the composite reinforced inner liner of rotary kiln in claims 1 to 3 described in any one, it is characterized in that: described in every block, refractory brick (2) is all fixed on the cylindrical shell (1) of rotary kiln by anchoring piece (3), one end of described anchoring piece (3) is provided with two hooks and hooks in the hook hole of adjacent two pieces of refractory brick (2) respectively, and the other end of described anchoring piece (3) is welded on cylindrical shell (1).
5. according to the composite reinforced inner liner of rotary kiln in claims 1 to 3 described in any one, it is characterized in that: described in every block, refractory brick (2) is all fixed on the cylindrical shell (1) of rotary kiln by anchoring piece (3), one end of described anchoring piece (3) is provided with two hooks and hooks in the hook hole of adjacent four pieces of refractory brick (2) respectively, and the other end of described anchoring piece (3) is welded on cylindrical shell (1).
6. according to the composite reinforced inner liner of rotary kiln in claims 1 to 3 described in any one, it is characterized in that: along the circumferencial direction of described cylindrical shell (1), connected by pouring belt (4) between described two adjacent groups refractory brick (2), described pouring belt (4) is fixed on cylindrical shell (1), is provided with the anchor studs (5) of more than of being fixedly arranged on cylindrical shell (1) in described pouring belt (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210573351.2A CN102980392B (en) | 2012-12-26 | 2012-12-26 | Composite reinforced rotary kiln inner liner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210573351.2A CN102980392B (en) | 2012-12-26 | 2012-12-26 | Composite reinforced rotary kiln inner liner |
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| CN102980392A CN102980392A (en) | 2013-03-20 |
| CN102980392B true CN102980392B (en) | 2015-04-08 |
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| CN201210573351.2A Active CN102980392B (en) | 2012-12-26 | 2012-12-26 | Composite reinforced rotary kiln inner liner |
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| CN107326135A (en) * | 2017-06-27 | 2017-11-07 | 河南省登封市光大耐火材料有限公司 | A kind of iron tap channel operculum colpi with flushing resistance |
| CN114317953B (en) * | 2021-12-17 | 2024-03-05 | 萍乡市众邦冶金有限公司 | Pellet production device for steel smelting |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2813091B2 (en) * | 1992-03-09 | 1998-10-22 | 品川白煉瓦株式会社 | Rotary kiln lining structure |
| JPH11173760A (en) * | 1997-12-08 | 1999-07-02 | Shinagawa Refract Co Ltd | Lining structure of rotary kiln for manufacturing cement |
| CN201218658Y (en) * | 2008-06-17 | 2009-04-08 | 中冶长天国际工程有限责任公司 | Prefabricated fireproof brick for rotary kiln liner |
| CN101837225B (en) * | 2009-03-16 | 2012-09-05 | 和舰科技(苏州)有限公司 | System for preventing isopropanol scrubber from being clogged |
| CN201672788U (en) * | 2010-06-13 | 2010-12-15 | 中冶长天国际工程有限责任公司 | Multi-pouring-strip rotary kiln |
| CN201837225U (en) * | 2010-10-09 | 2011-05-18 | 河南省宏达炉业有限公司 | Inner lining structure of fire-proof material |
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