CN110922071B - Brickwork for annular channel of double-chamber lime kiln and construction method - Google Patents
Brickwork for annular channel of double-chamber lime kiln and construction method Download PDFInfo
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- CN110922071B CN110922071B CN201911296356.3A CN201911296356A CN110922071B CN 110922071 B CN110922071 B CN 110922071B CN 201911296356 A CN201911296356 A CN 201911296356A CN 110922071 B CN110922071 B CN 110922071B
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- brick
- annular channel
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- 235000008733 Citrus aurantifolia Nutrition 0.000 title claims abstract description 31
- 235000011941 Tilia x europaea Nutrition 0.000 title claims abstract description 31
- 239000004571 lime Substances 0.000 title claims abstract description 31
- 238000010276 construction Methods 0.000 title claims abstract description 22
- 239000011449 brick Substances 0.000 claims description 109
- 239000011087 paperboard Substances 0.000 claims description 8
- 210000001503 joint Anatomy 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 210000000038 chest Anatomy 0.000 claims description 2
- 230000002265 prevention Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 230000006378 damage Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 235000012255 calcium oxide Nutrition 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2/00—Lime, magnesia or dolomite
- C04B2/10—Preheating, burning calcining or cooling
- C04B2/12—Preheating, burning calcining or cooling in shaft or vertical furnaces
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses a brickwork for a double-chamber lime kiln annular channel and a construction method thereof. The brickwork has the advantages of simplicity, practicability, strong self-locking capability, stress concentration prevention, capability of improving the strength of a masonry structure and the like, and the construction method has the advantages of simple steps, convenience in construction and the like.
Description
Technical Field
The invention relates to the field of lime kiln masonry structures, in particular to a brick for a double-chamber lime kiln annular channel and a construction method.
Background
The existing lime kiln which is commonly used is a double-chamber lime kiln and is used for calcining limestone at high temperature to generate industrial quicklime, and the industrial quicklime is used as an additive in the processes of sintering iron-making raw materials, iron-making reduction, molten iron pretreatment and external refining, plays roles in adjusting the alkalinity of furnace burden, slagging, desulfurizing and the like, and has important roles in smoothly carrying out the iron-making and steel-making process.
The double-chamber lime kiln has the advantages of high heat efficiency, small pollution and the like, so that the double-chamber lime kiln has wide application. The kiln body is generally composed of two vertical kiln bores which are mirror images of each other, and the two kiln bores are connected through an annular channel. In the production process, the temperature of the annular channel is up to 900 ℃, the pressure in the channel is up to 20kP, and the annular channel is one of the places on lime kiln equipment, where the working condition environment is the worst and the structural damage is the most likely to occur. The masonry structure at the channel is easy to cause local damage under the high-temperature and high-pressure environment, and finally the masonry structure is developed into the damage of the whole kiln chamber structure, thereby influencing the operation life of the lime kiln. Therefore, the strength of the annular channel is improved, and the method has positive effects of prolonging the service life of the lime kiln.
The annular passage of the lime kiln is composed of an outer wall clung to the kiln shell and an inner wall arranged in the kiln chamber, as shown in fig. 1, the inner wall brickwork is designed into a shape with a big head end and a small tail end, and a plurality of brickwork sides of the same shape are aligned and built into a ring. One side of the inner wall brickwork is provided with a convex edge, the other side of the inner wall brickwork is provided with a groove, the top surface of the inner wall brickwork is provided with a groove, the bottom surface of the inner wall brickwork is provided with a convex edge, self-locking between the same-layer brickwork is realized through mutual engagement of the convex edge and the groove, and the capability of the inner wall for resisting lateral thrust is improved. But the included angle between the side surface and the end surface of the convex edge and between the side surface of the convex edge and the side surface of the inner wall brickwork is an obtuse angle, the structure has good strength and integrity under normal temperature environment, but when the working temperature rises, the annular inner wall is heated and expanded, the brickwork moves outwards along the radial direction due to the characteristic of thermal deformation of the annular structure, the adjacent brickwork is mutually far away, the stress direction is shown in figure 3, the two brickwork which are originally tightly meshed are separated at the meshing surface, the self-locking force between the adjacent brickwork is reduced, the integrity of the inner wall structure is reduced, the convex edge directly slides out of the groove, the inner wall is partially damaged, the stress concentration phenomenon at the bottom of the convex edge is serious, and the brickwork is easy to fracture from the bottom of the convex edge. Therefore, the prior art is easy to loosen and retreat under the hot working condition, has poor self-locking effect and low structural strength, and needs to be improved.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a brickwork for a double-chamber lime kiln annular channel, which is simple and practical, has strong self-locking capability, prevents stress concentration and can improve the strength of a masonry structure, and a construction method for masonry by using the brickwork, wherein the steps are simple and the construction is convenient.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the utility model provides a two thorax limekilns annular channel is with laying bricks, is built bricks including brick body and mounting, the polylith the brick body side is built by laying bricks or stones into annular channel interior wall mutually, and the both sides of brick body all are equipped with the recess, and the recess butt joint of two adjacent brick body interfaces in the same layer is fixed passageway, the internal diameter of fixed passageway cooperatees with the external diameter of mounting, and the mounting penetrates fixed passageway and cooperates fixedly with it.
As the further improvement of the brickwork for the annular channel of the double-chamber lime kiln:
the length of the fixing piece is not less than twice the thickness of the brick body, and the fixing piece penetrates through and connects two adjacent brick bodies.
The brick body is provided with a through hole, and the inner diameter of the through hole is matched with the outer diameter of the fixing piece; the fixing channels formed by butt joint of two adjacent brick bodies on the same layer are aligned with the through holes on the upper layer brick body and/or the lower layer brick body, and the fixing pieces penetrate into the through holes of the upper and lower adjacent brick bodies and the fixing channels and are matched and fixed with the through holes.
In each layer of brick body, two adjacent fixing pieces are respectively connected between the brick bodies of different layers and the brick bodies of the layers.
The brick body is in an axisymmetric shape, and the grooves and the through holes are symmetrically arranged along the symmetry axis.
The fixing channels and the through holes are square cross-section holes, and the fixing pieces are square cross-section bar bricks.
The fixing channels and the through holes are all round section holes, and the fixing pieces are bar bricks with round sections.
The construction method for brickwork by using the double-chamber lime kiln annular channel comprises the following steps:
S1: paving a first layer of brick body on the bottom surface of the annular channel inner wall masonry structure;
s2: the lower layer of brick body is built by staggered joint, so that each through hole is aligned with each fixed channel of the upper layer of brick body;
s3: building a fixing piece in each group of through holes and fixing channels which are aligned;
s4: and repeating the steps S2 to S3 until the inner wall of the annular channel is built.
As a further improvement of the above construction method:
The preparation work is needed before the first layer of brick body is laid, and the steps comprise:
s11: checking levelness and elevation of the bottom surface of the inner wall masonry structure by using a level gauge, and filling and leveling by using refractory clay to obtain a horizontal plane A of the bottom surface of the inner wall masonry structure if the levelness and the elevation are not up to the requirements;
S12: searching a horizontal plane B higher than the top of the connecting channel in the kiln chamber by using a level gauge;
S13: n brackets are welded on the horizontal plane B at equal intervals along the wall surface of the kiln shell, wherein N is equal to the number of bricks in each layer;
s14: a laser emitter is hung and installed on each support, and naturally sags by gravity, so that the perpendicularity of laser is ensured;
s15: placing a horizontal paperboard on a horizontal plane A, and measuring the distance S between the projection point of each laser on the horizontal paperboard and the center point of the kiln chamber;
s16: adjusting the hanging position of the laser transmitter on the bracket until S is equal to the inner diameter of the annular inner wall, and fixing the mounting position of the laser transmitter on the bracket;
S17: and (3) building the brick body on the plane A, aligning two edges of the inner end of the brick body with two adjacent laser beams, and positioning the brick body for later building.
Compared with the prior art, the invention has the advantages that:
The invention provides a brickwork for a double-chamber lime kiln annular channel, wherein grooves are formed in two sides of a brick body, grooves of joint surfaces of two adjacent brick bodies on the same layer are butted to form a fixed channel, the inner diameter of the fixed channel is matched with the outer diameter of a fixing piece, and the fixing piece penetrates into the fixed channel and is matched and fixed with the fixed channel. The brick body of brickwork no longer sets up protruding edge, but bears thrust with groove structure, and the recess is compared in protruding edge in the inside of brick body, is difficult for receiving destruction, therefore when annular interior wall thermal expansion, the brick body of brickwork can not appear destroying because of protruding edge fracture, and the intensity of brick body is higher, and structural integrity is more reasonable, and the atress performance is stronger to because the brick body is the structure that is in brickwork and the volume is all great, the brick body is difficult for destroying also is favorable to brickwork manufacturing and maintenance in-process save material. The invention uses the independent fixing piece to replace the original convex edge to bear force, so that the bending angle in the bearing part is less, the bearing defect area is small, the phenomena of stress concentration and the like are avoided to a great extent, the connection strength is higher, and the service life of the whole kiln is prolonged.
The construction method for bricking by adopting the brickwork also has the advantages of simple steps, convenient construction, easy operation of operators and the like. Furthermore, as the working condition of the annular channel of the double-chamber lime kiln is very bad, the construction precision requirements on the perpendicularity, the roundness and the like of the brickwork structure are very high, and the radius error of the kiln chamber is too large, uneven stress between brickwork layers can be caused, and the structural strength of the annular channel is seriously reduced. The construction method of the invention adopts the naturally drooping laser as the auxiliary, can accurately control the verticality of the bricklaying structure, and can effectively control the roundness by adopting the mode of laser and horizontal paper boards, thereby ensuring the structural strength of the annular channel and improving the stress uniformity of the bricklaying structure.
Drawings
FIG. 1 is a schematic view of the structure of a double-chamber lime kiln with annular channels at the positions where the annular channels are arranged;
FIG. 2 is a schematic diagram of a prior art lime kiln brickwork;
FIG. 3 is a schematic diagram of the stress situation of the existing lime kiln brickwork;
FIG. 4 is a schematic view of the construction of brickwork for a double-chamber lime kiln annular channel of example 1;
FIG. 5 is a schematic view of the connection structure of brickwork for a double-chamber lime kiln annular channel of example 1;
FIG. 6 is a view in the direction A-A of FIG. 5;
fig. 7 is a schematic view of the construction of brickwork for a double-chamber lime kiln annular channel of example 2.
Legend description: 1. bricking; 11. a brick body; 111. a groove; 112. a through hole; 12. and a fixing piece.
Detailed Description
The invention will be described more fully hereinafter with reference to the accompanying drawings and preferred embodiments in order to facilitate an understanding of the invention, but the scope of the invention is not limited to the following specific embodiments.
Example 1:
as shown in fig. 4 and 5, the brickwork 1 for the annular channel of the double-chamber lime kiln in this embodiment includes a body 11 and a fixing member 12, the side surfaces of the bodies 11 are connected and built into an annular channel inner wall, grooves 111 are formed on both sides of the bodies 11, the grooves 111 on the joint surfaces of two adjacent bodies 11 are butted into a fixing channel, the inner diameter of the fixing channel is matched with the outer diameter of the fixing member 12, and the fixing member 12 penetrates into the fixing channel and is matched and fixed with the fixing channel.
The brick body 11 of the brick 1 of this embodiment no longer sets up the flange, but bears thrust with the recess 111 structure, recess 111 is in the inside of brick body 11 in comparison with the flange, be difficult for receiving destruction, therefore when annular interior wall thermal expansion, the brick body 11 of brick 1 can not appear destroying because of the flange fracture, the intensity of brick body 11 is higher, structural integrity is more reasonable, the atress performance is stronger, when mounting 12 appears destroying, only change mounting 12 can, the brick body 11 is the structure that effect and volume are all great in the brick 1, the brick body 11 is difficult for destroying also is favorable to saving material in the brick 1 manufacturing and the maintenance process. In this embodiment, the separate fixing member 12 replaces the original protruding rib to bear force, so that the bending angle existing in the bearing part is small, the bearing defect area is small, the occurrence of stress concentration and other phenomena is avoided to a great extent, the connection strength is higher, and the overall service life of the kiln is prolonged.
In this embodiment, the length of the fixing member 12 is not less than twice the thickness of the brick body 11, and the fixing member 12 penetrates and connects two adjacent brick bodies 11. The setting mode makes mounting 12 not only play the effect of substituting protruding stupefied bearing lateral thrust and locking with adjacent brickwork 1 of layer, can also play the effect of locking and connecting different layers of brickwork 1, and solitary mounting 12 just can play two-way locking effect promptly, has consequently simplified brickwork 1 structure, has removed the process of processing protruding stupefied and the side of brickwork 1 bottom from, has more reduced the required precision of masonry construction, saves a large amount of manpower and materials.
In this embodiment, the brick body 11 is provided with a through hole 112, and the inner diameter of the through hole 112 is matched with the outer diameter of the fixing piece 12; the brick bodies 11 of the brickwork 1 adopt a staggered joint arrangement structure when being built, namely in two layers of brickwork 1 which are adjacent up and down, a fixing channel formed by butt joint of one layer of brick bodies 11 is aligned with a through hole 112 of the other layer of brick bodies 11, and then a fixing piece 12 penetrates into the through hole 112 of the upper layer of brick bodies 11 and the lower layer of brick bodies 11 to be matched and fixed with the fixing channel. Compared with the arrangement of all the layers of brick bodies 11 in an aligned manner, the arrangement mode breaks joints among the brick bodies 11, so that the annular inner wall built by the brickwork 1 is higher in stability, and the service life of the whole kiln is prolonged. In other embodiments, the arrangement mode of the bricks 1 of each layer in alignment, that is, between the upper and lower brick bodies 11, the through holes 112 are aligned with the through holes 112, and the fixing channels are aligned with the fixing channels, but the stability of the arrangement mode is reduced compared with that of the embodiment, and the description is omitted here.
In this embodiment, as shown in fig. 6, in each layer of brick body 11, two adjacent fixing members 12 are respectively connected between the brick body 11 and the layer of brick body 11 in different layers, that is, one of the two adjacent fixing members 12 is connected with the layer of brick body 11 and the upper layer of brick body 11, and the other is connected with the layer of brick body 11 and the lower layer of brick body 11. The setting mode utilizes the fixing piece 12 to break gaps among different layers of brick bodies 11, further enables the annular inner wall obtained by brickwork 1 masonry to be higher in stability, and prolongs the service life of the whole kiln.
In this embodiment, the brick body 11 is axisymmetric, and the grooves 111 and the through holes 112 are symmetrically arranged along the symmetry axis, so as to ensure that the brick body 11 can be uniformly stressed, and further improve the stress performance of the brick body 11.
In this embodiment, the fixing channels and the through holes 112 are square cross-section holes, the fixing members 12 are square cross-section bar bricks, and the square cross-section is favorable for locking the fixing channels and the through holes 112 with the fixing members 12, so that the annular inner wall is prevented from being heated to separate the brickwork 1. In other embodiments, different cross-sectional shapes may be selected according to the use condition, or pouring and molding of pouring refractory castable is adopted, and details are not described here.
The embodiment also provides a construction method for brickwork by using the double-chamber lime kiln annular channel, which has the advantages as above, and has the advantages of simple steps, convenient construction, easy operation of operators and the like, and the method comprises the following steps:
s1: paving a first layer of brick bodies 11 on the bottom surface of the annular channel inner wall masonry structure;
Because the working condition of the annular channel of the double-chamber lime kiln is very bad, the construction precision requirements on the perpendicularity, the roundness and the like of the brickwork 1 are very high, and the radius error of the kiln chamber is too large, so that uneven stress among the brickwork 1 on the same layer can be caused, and the structural strength of the annular channel is seriously reduced. Therefore, the following preparation should be made before laying:
s11: checking levelness and elevation of the bottom surface of the inner wall masonry structure by using a level gauge, and filling and leveling by using refractory clay to obtain a horizontal plane A of the bottom surface of the inner wall masonry structure if the levelness and the elevation are not up to the requirements;
S12: searching a horizontal plane B higher than the top of the connecting channel in the kiln chamber by using a level gauge;
S13: n brackets are welded on the horizontal plane B at equal intervals along the wall surface of the kiln shell, wherein N is equal to the number of bricks 1 in each layer;
s14: a laser emitter is hung and installed on each support, and naturally sags by gravity, so that the perpendicularity of laser is ensured;
s15: placing a horizontal paperboard on a horizontal plane A, and measuring the distance S between the projection point of each laser on the horizontal paperboard and the center point of the kiln chamber;
s16: adjusting the hanging position of the laser transmitter on the bracket until S is equal to the inner diameter of the annular inner wall, and fixing the mounting position of the laser transmitter on the bracket;
s17: building the brick body 11 on the plane A, aligning two edges of the inner end of the brick body 11 with two adjacent laser beams, and positioning and then building the brick body 11;
The preparation work adopts the naturally drooping laser as an aid to accurately position the brickwork 1, the perpendicularity of the brickwork 1 structure can be accurately controlled, and the roundness can be effectively controlled by adopting a mode of laser and horizontal paper boards, so that the structural strength of an annular channel is ensured, and the stress uniformity of the brickwork 1 structure is improved.
S2: the lower layer of brick body 11 is built by staggered joint, so that each through hole 112 is aligned with each fixed channel of the upper layer of brick body 11; for example, when the second layer of brick body 11 is built, the second layer of brick body 11 rotates by a certain angle relative to the first layer of brick body 11, so that the side edge of the second layer of brick body 11 coincides with the central line of the first layer of brick body 11, the central line of the tail end of the second layer of brick body 11 is aligned with the laser beam, and the brick body 11 is built after being positioned;
S3: masonry anchor 12 in each set of aligned through holes 112 and anchor channels;
s4: and repeating the steps S2 to S3 until the inner wall of the annular channel is built.
Example 2:
this embodiment is substantially the same as embodiment 1, except that in this embodiment, as shown in fig. 7, the fixing passages and the through holes 112 are circular cross-sectional holes, and the fixing member 12 is a bar brick of circular cross-section. The adoption of the circular section instead of the square section can effectively improve the stress concentration at the edges of each cavity and the fixing piece 12, and further improve the structural strength of the brickwork 1.
The above description is merely a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above examples. Modifications and variations which do not depart from the gist of the invention are intended to be within the scope of the invention.
Claims (6)
1. The utility model provides a two thorax limekiln annular passage is with laying bricks which characterized in that: the brickwork (1) comprises a brickwork body (11) and fixing pieces (12), a plurality of side faces of the brickwork body (11) are connected and built into an annular channel inner wall, grooves (111) are formed in two sides of the brickwork body (11), the grooves (111) of the connecting faces of two adjacent brickwork bodies (11) on the same layer are butted into a fixing channel, the inner diameter of the fixing channel is matched with the outer diameter of the fixing pieces (12), and the fixing pieces (12) penetrate into the fixing channel and are matched and fixed with the fixing channel; the length of the fixing piece (12) is not less than twice the thickness of the brick body (11), and the fixing piece (12) penetrates through and connects two upper and lower adjacent brick bodies (11); the brick body (11) is provided with a through hole (112), and the inner diameter of the through hole (112) is matched with the outer diameter of the fixing piece (12); the fixed channels formed by butt joint of two adjacent brick bodies (11) on the same layer are aligned with through holes (112) on the upper brick body (11) and/or the lower brick body (11), and the fixed pieces (12) penetrate into the through holes (112) of the upper and lower adjacent brick bodies (11) and the fixed channels and are matched and fixed with the fixed channels; in each layer of brick body (11), two adjacent fixing pieces (12) are respectively connected between the brick bodies (11) of different layers and the brick bodies (11) of the layers.
2. The brickwork for a double-bore lime kiln annular channel according to claim 1, characterized in that: the brick body (11) is in an axisymmetric shape, and the grooves (111) and the through holes (112) are symmetrically arranged along the symmetry axis.
3. The brickwork for a double-bore lime kiln annular channel according to claim 1, characterized in that: the fixing channels and the through holes (112) are square cross-section holes, and the fixing pieces (12) are square cross-section bricks.
4. The brickwork for a double-bore lime kiln annular channel according to claim 1, characterized in that: the fixing channels and the through holes (112) are all round cross-section holes, and the fixing pieces (12) are bar bricks with round cross sections.
5. A construction method for brickwork with the double-chamber lime kiln annular channel according to any one of claims 1 to 4, comprising the steps of:
s1: paving a first layer of brick body (11) on the bottom surface of the annular channel inner wall masonry structure;
S2: the next layer of brick body (11) is built by staggered joint, so that each through hole (112) is aligned with each fixed channel of the upper layer of brick body (11) respectively;
S3: masonry fasteners (12) in each set of aligned through-holes (112) and fastening channels;
s4: and repeating the steps S2 to S3 until the inner wall of the annular channel is built.
6. The construction method according to claim 5, wherein: the preparation work is needed before the first layer of brick body (11) is laid, and the steps comprise:
s11: checking levelness and elevation of the bottom surface of the inner wall masonry structure by using a level gauge, and filling and leveling by using refractory clay to obtain a horizontal plane A of the bottom surface of the inner wall masonry structure if the levelness and the elevation are not up to the requirements;
S12: searching a horizontal plane B higher than the top of the connecting channel in the kiln chamber by using a level gauge;
s13: n brackets are welded on the horizontal plane B at equal intervals along the wall surface of the kiln shell, wherein N is equal to the number of bricks (1) in each layer;
s14: a laser emitter is hung and installed on each support, and naturally sags by gravity, so that the perpendicularity of laser is ensured;
s15: placing a horizontal paperboard on a horizontal plane A, and measuring the distance S between the projection point of each laser on the horizontal paperboard and the center point of the kiln chamber;
s16: adjusting the hanging position of the laser transmitter on the bracket until S is equal to the inner diameter of the annular inner wall, and fixing the mounting position of the laser transmitter on the bracket;
s17: and (3) building the brick body (11) on the plane A, aligning two edges of the inner end of the brick body (11) with two adjacent laser beams, and positioning and then building the brick body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911296356.3A CN110922071B (en) | 2019-12-16 | 2019-12-16 | Brickwork for annular channel of double-chamber lime kiln and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911296356.3A CN110922071B (en) | 2019-12-16 | 2019-12-16 | Brickwork for annular channel of double-chamber lime kiln and construction method |
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| CN110922071A CN110922071A (en) | 2020-03-27 |
| CN110922071B true CN110922071B (en) | 2024-06-11 |
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| CN112033162A (en) * | 2020-09-14 | 2020-12-04 | 北京嘉永会通能源科技有限公司 | Masonry structure for industrial furnace channel |
| CN114368921B (en) * | 2022-01-27 | 2022-08-12 | 中冶长天国际工程有限责任公司 | Annular channel structure for double-chamber lime kiln and double-chamber lime kiln |
| CN114353506B (en) * | 2022-01-27 | 2023-06-23 | 中冶长天国际工程有限责任公司 | Annular channel structure for double-chamber lime kiln |
| CN114538800B (en) * | 2022-02-28 | 2022-10-18 | 中冶长天国际工程有限责任公司 | Annular channel structure for double-chamber lime kiln and building method thereof |
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