CN109520304B - Building method of bottom block of molten salt chlorination furnace - Google Patents
Building method of bottom block of molten salt chlorination furnace Download PDFInfo
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- CN109520304B CN109520304B CN201811351321.0A CN201811351321A CN109520304B CN 109520304 B CN109520304 B CN 109520304B CN 201811351321 A CN201811351321 A CN 201811351321A CN 109520304 B CN109520304 B CN 109520304B
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- bottom block
- lifting appliance
- lifting
- building
- construction platform
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- 238000005660 chlorination reaction Methods 0.000 title claims abstract description 28
- 150000003839 salts Chemical class 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000010276 construction Methods 0.000 claims abstract description 35
- 239000011819 refractory material Substances 0.000 claims abstract description 9
- 125000006850 spacer group Chemical group 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 5
- 238000005520 cutting process Methods 0.000 claims abstract description 3
- 239000011449 brick Substances 0.000 claims description 6
- 239000004927 clay Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 229910021577 Iron(II) chloride Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
- F27D1/1621—Making linings by using shaped elements, e.g. bricks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a building method of a bottom block of a molten salt chlorination furnace, and relates to the technical field of manufacturing of molten salt chlorination furnaces. The method comprises the following steps: A. building a construction platform; B. manufacturing a lifting appliance; C. laying a paper pad on a construction platform and paying off to determine four semicircular small building areas; D. fixing the lifting appliance on a construction platform, and arranging a spacer for separating four small building areas on the paper pad; E. building brickworks layer by layer in a small building area to form a plurality of bottom block layers, wherein the arrangement form of the brickworks is in a herringbone shape, and the brickworks of the adjacent bottom block layers are constructed in a staggered joint mode; obtaining four bottom block split bodies after the building of each bottom block layer is finished; the lifting appliance penetrates through the bottom block split body; F. drying the bottom block split body; G. hanging each bottom block into the fused salt chlorination furnace in a split manner; H. cutting off the hanger rod, and filling the preformed hole with a refractory material; I. and refractory materials are filled between the split bodies of the bottom block. The bottom block of the fused salt chlorination furnace is built, construction is convenient, and the quality of finished products is good.
Description
Technical Field
The invention relates to the technical field of manufacture of a molten salt chlorination furnace, in particular to a building method of a bottom block of the molten salt chlorination furnace.
Background
The molten salt chlorination furnace is a core furnace for producing the sponge titanium by a molten salt chlorination method. The production environment in the fused salt chlorination furnace is complex and toxic, and the working medium contains CO2，NaCl，CaCl2，FeCl2The density of the molten liquid produced in the furnace is 1600-1800Kg/m3And the requirement on the airtightness of the furnace body, particularly the requirement on the masonry quality, is extremely high.
The bottom block of the existing molten salt chlorination furnace is generally built in the furnace and dried, and has the following defects: 1. the masonry work environment in the furnace is poor, the space is narrow and small, and the masonry efficiency is low. 2. The thickness of the brickwork at the bottom of the molten salt chlorination furnace is large, the temperature of a furnace-in-design furnace is only 300 degrees, the baking in the bottom brickwork furnace is difficult to meet the requirements of design and use, and the problem is easy to occur after the furnace-in-design furnace is put into use. 3. The masonry is thick, and quality defects such as cracks and the like are easy to generate in the furnace baking process by using the modes of furnace masonry and furnace baking.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the building method of the bottom block of the molten salt chlorination furnace is convenient to construct and good in finished product quality.
The technical scheme adopted for solving the problems is as follows: the method for building the bottom block of the molten salt chlorination furnace comprises the following steps:
A. building a construction platform to ensure the surface levelness and the flatness of the construction platform;
B. manufacturing a lifting appliance, wherein the lifting appliance comprises a lifting appliance bottom plate, a lifting appliance rod and lifting rings, the lifting appliance rod is perpendicular to the lifting appliance bottom plate, and the lifting appliance bottom plate and the lifting rings are respectively connected to two ends of the lifting appliance rod;
C. paying off a construction platform to determine a circular masonry area and uniformly dividing the masonry area into four quarter-circular small masonry areas; in each small building area, a lifting appliance groove is formed in the construction platform; laying a layer of paper pad on the construction platform, and forming hanger through holes corresponding to the hanger grooves one by one on the paper pad;
D. placing the lifting appliance bottom plate into the lifting appliance groove, fixing the lifting appliance bottom plate and ensuring the lifting appliance to be vertical; on the paper mat, a spacer is vertically arranged at the joint of the adjacent small building areas, the cross section of the spacer is in a cross shape, and the four small building areas are separated by the spacer;
E. building brickworks layer by layer in a small building area to form a plurality of bottom block layers, wherein the arrangement form of the brickworks is in a herringbone shape, and the brickworks of the adjacent bottom block layers are constructed in a staggered joint mode; the two bottom block layers positioned at the top are provided with reserved holes corresponding to the positions of the lifting tool rods, the other bottom block layers are provided with lifting tool rod holes corresponding to the positions of the lifting tool rods, and refractory materials are filled between the lifting tool rod holes and the lifting tool rods; obtaining four bottom block split bodies after the building of each bottom block layer is finished;
F. drying the bottom block split body;
G. hooking a lifting ring by using a lifting tool to lift, and lifting each bottom block into the molten salt chlorination furnace in a split manner to form a circular shape; in the hoisting process, the lifting appliance bottom plate is separated from the construction platform, and the lifting appliance bottom plate supports the bottom block split body;
H. cutting off the hanger rod from the bottom of the preformed hole, and filling the preformed hole with refractory materials;
I. and refractory materials are filled in the split gaps of the bottom block.
Further, the method comprises the following steps: the construction platform is built by light clay refractory bricks, and the flatness of the construction platform is not more than 2 mm.
Further, the method comprises the following steps: every is built by laying bricks or stones regionally for a short time and has three hoist, and the hoist is located the regional middle part of building by laying bricks or stones for a short time, and the mutual contained angle of three hoist is 120.
Further, the method comprises the following steps: the number of bottom block layers is eight.
The invention has the beneficial effects that: 1. the bottom block of the molten salt chlorination furnace is installed in the furnace after being built and dried outside the furnace. The external masonry work space is large, the environment is good, the masonry is facilitated, and the masonry quality is ensured. And the drying is facilitated to ensure the drying quality.
2. The lifting appliance is built in the bottom block split body, and can be cut off and taken out, so that the lifting of the bottom block split body is facilitated, and the bottom block is convenient to lift during baking and mounting.
3. The invention adopts the distance piece to separate four small building areas, thereby building four bottom block split bodies, and being convenient to ensure the shape precision of the bottom block split bodies and the shape precision of the assembled bottom block; the bottom block is divided into four bottom block split bodies, so that the molten salt chlorination furnace can be conveniently hung.
4. The arrangement form of brickwork is the herringbone, and the brickwork staggered joint of adjacent bottom block layer is built by laying bricks or stones, can effectively avoid two-layer crack to reveal the problem. The preformed hole and the hanger rod hole are filled with refractory materials, so that the bottom block can be prevented from forming a downward through seam along the hanger rod hole.
Drawings
FIG. 1 is a construction platform masonry view;
FIG. 2 is a diagram of a spreader construction;
FIG. 3 is a schematic view of step C;
FIG. 4 is a schematic view of step D;
FIG. 5 is a plan view of a building completion state of a bottom block of the molten salt chlorination furnace;
FIG. 6 is a side view of a molten salt chlorination furnace bottom block in a building completion state;
labeled as: the construction method comprises the following steps of 1 construction platform, 2 lifting appliance, 2-1 lifting appliance bottom plate, 2-2 lifting appliance rod, 2-3 lifting ring, 3 paper pad, 4 building area, 4-1 building area, 5 lifting appliance groove, 6 lifting appliance through holes, 7 spacer, 8 preformed hole, 9 masonry, 10 bottom block layer, 11 bottom block split body and 12 lifting appliance rod hole.
Detailed Description
The steps of the present invention will be further described with reference to the accompanying drawings and the following detailed description.
The building method of the bottom block of the molten salt chlorination furnace comprises the steps A-I.
Step a is shown in fig. 1: the construction platform 1 is built, and the levelness and the flatness of the surface of the construction platform 1 are guaranteed. The construction platform 1 is built by adopting light clay refractory bricks, has certain hardness and strength and can bear load; meanwhile, the machining tool has certain machinability, can use a handheld scraper or a grinding machine to polish the surface of the construction platform 1 to ensure the levelness and the flatness of the construction platform, and can also ensure that the lifting appliance groove 5 can be machined in the subsequent steps. The flatness of the construction platform 1 is not more than 2 mm.
And B: and manufacturing a lifting appliance 2, wherein the lifting appliance 2 comprises a lifting appliance bottom plate 2-1, a lifting appliance rod 2-2 and a lifting ring 2-3, the lifting appliance rod 2-2 is vertical to the lifting appliance bottom plate 2-1, and the lifting appliance bottom plate 2-1 and the lifting ring 2-3 are respectively connected to two ends of the lifting appliance rod 2-2. Specifically, as shown in fig. 2, a bottom plate 2-1 is cut from a steel plate, the bottom plate 2-1 can be made into different sizes according to stress conditions, a lifting tool rod 2-2 and lifting rings 2-3 are made of round steel, and the upper parts of the round steel are bent into a round shape to form the lifting rings 2-3; the lower end part of the round steel is bent and welded on the bottom plate 2-1. The length of the lifting appliance rod 2-2 is such that the lifting ring 2-3 is exposed after the subsequent steps of building are finished.
Step C is shown in fig. 3: paying off a construction platform 1 to determine a circular masonry area 4 and uniformly dividing the masonry area 4 into four quarter-circular small masonry areas 4-1; in each small building area 4-1, a lifting appliance groove 5 is formed in the construction platform 1; and then a layer of paper pad 3 is laid on the construction platform 1, and hanger through holes 6 which are in one-to-one correspondence with the hanger grooves 5 are formed in the paper pad 3. The size of the masonry area 4 is the same as that of the bottom block of the molten salt chlorination furnace. The paper pad 3 is used for facilitating the separation of the bottom of the salt chlorination furnace and the construction platform 1 after the construction is finished. The distribution of the lifting appliances 2 is shown in figure 3, three lifting appliances 2 are arranged in each small building area 4-1, and the lifting appliances 2 are positioned in the middle of the small building area 4-1; the lifting appliance bottom plate 2-1 close to the center is larger, and the lifting appliance bottom plate 2-1 at the outer side is smaller; the included angle of the hanging rings 2-3 is 120 degrees.
Step D: placing the lifting appliance bottom plate 2-1 into the lifting appliance groove 5, fixing the lifting appliance bottom plate 2-1 and ensuring the lifting appliance 2 to be vertical; on the paper pad 3, a spacer 7 is vertically arranged at the joint of the adjacent small masonry areas 4-1, the cross section of the spacer 7 is in a cross shape, and the four small masonry areas 4-1 are separated by the spacer 7. The spacer 7 separates four small building areas 4-1, so that four bottom block split bodies 11 are built, and the shape accuracy of the bottom block split bodies 11 and the shape accuracy of the assembled bottom blocks are conveniently ensured; the bottom block is divided into four bottom block split bodies 11, so that the bottom block can be conveniently hung into the molten salt chlorination furnace. The spacer 7 is made of an aluminum alloy. The lifting appliance bottom plate 2-1 and the construction platform 1 are not required to be firmly fixed, the problem that the lifting appliance bottom plate 2-1 and the lifting appliance groove 5 are difficult to separate in the subsequent steps is avoided, and refractory slurry is filled between the lifting appliance bottom plate 2-1 and the lifting appliance groove 5.
Step E: building brickworks 9 in the small building area 4-1 layer by layer to form a plurality of bottom block layers 10, wherein the arrangement form of the brickworks 9 is herringbone, and the brickworks 9 of the adjacent bottom block layers 10 are constructed in a staggered joint mode; two uppermost bottom block layers 10 are provided with reserved holes 8 corresponding to the positions of the lifting tool rods 2-2, the rest bottom block layers 10 are provided with lifting tool rod holes 12 corresponding to the positions of the lifting tool rods 2-2, and refractory materials are filled between the lifting tool rod holes 12 and the lifting tool rods 2-2; after the bottom block layers 10 are built, four bottom block split bodies 11 are obtained. The mortar joints between the brickworks 9 are 1-2mm in thickness. And (3) cutting a hanger rod hole 12 of the masonry 9 at the position of the hanger rod 2-2 by using a brick cutter, checking the flatness of the bottom block layer 10 by using a guiding ruler and a level gauge together after each bottom block layer 10 is built, checking the thickness by using a plumb bob and the level gauge together with a measuring tape, and building the next bottom block layer 10 after the thickness is checked to be qualified. The preformed hole 8 of the uppermost bottom block layer 10 may be larger than the preformed hole 8 of the bottom block layer 10 below it. The number of bottom block layers 10 is eight.
Step F: the drying bottom block is split 11. The bottom block split body 11 can be dried by adopting a conventional mode, and a drying device can also be arranged under the construction platform 1 for drying.
Step G: hooking the lifting rings 2-3 by using a lifting tool to lift, and lifting each bottom block split body 11 into the molten salt chlorination furnace to form a circular shape; in the hoisting process, the paper pad 3 is separated from the bottom block split body 11, the lifting appliance bottom plate 2-1 is separated from the construction platform 1, and the lifting appliance bottom plate 2-1 is separated from the bottom block split body 11.
Step H: and cutting off the hanger rod 2-2 from the bottom of the preformed hole 8, and filling the preformed hole 8 with refractory materials. The refractory material fills the preformed hole 8, so that the surface of the bottom block split body 11 can be ensured to be smooth, and the bottom block can be prevented from forming a downward through seam along the suspender hole 12.
Step I: refractory materials are filled between the bottom block split bodies 11, so that the bottom block split bodies 11 are connected into a whole to form the bottom block of the molten salt chlorination furnace.
Claims (4)
1. The building method of the bottom block of the molten salt chlorination furnace is characterized by comprising the following steps: the method comprises the following steps:
A. the construction platform (1) is built, and the surface levelness and the flatness of the construction platform (1) are ensured;
B. manufacturing a lifting appliance (2), wherein the lifting appliance (2) comprises a lifting appliance bottom plate (2-1), a lifting appliance rod (2-2) and a lifting ring (2-3), the lifting appliance rod (2-2) is perpendicular to the lifting appliance bottom plate (2-1), and the lifting appliance bottom plate (2-1) and the lifting ring (2-3) are respectively connected to two ends of the lifting appliance rod (2-2);
C. paying off a construction platform (1) to determine a circular masonry area (4) and uniformly dividing the masonry area (4) into four quarter-circular small masonry areas (4-1); in each small building area (4-1), a lifting appliance groove (5) is formed in the construction platform (1); a layer of paper pad (3) is laid on the construction platform (1), and hanger through holes (6) which correspond to the hanger grooves (5) one by one are formed in the paper pad (3);
D. placing the lifting appliance bottom plate (2-1) into the lifting appliance groove (5), fixing the lifting appliance bottom plate (2-1) and ensuring the lifting appliance (2) to be vertical; on the paper pad (3), a spacer (7) is vertically arranged at the joint of the adjacent small masonry areas (4-1), the cross section of the spacer (7) is in a cross shape, and the four small masonry areas (4-1) are separated by the spacer (7);
E. building brickworks (9) layer by layer in the small building area (4-1) to form a plurality of bottom block layers (10), wherein the arrangement form of the brickworks (9) is herringbone, and the brickworks (9) of the adjacent bottom block layers (10) are constructed in a staggered joint mode; two bottom block layers (10) positioned at the top are provided with reserved holes (8) corresponding to the positions of the lifting tool rods (2-2), the rest bottom block layers (10) are provided with lifting tool rod holes (12) corresponding to the positions of the lifting tool rods (2-2), and refractory materials are filled between the lifting tool rod holes (12) and the lifting tool rods (2-2); after the bottom block layers (10) are built, four bottom block split bodies (11) are obtained;
F. drying the bottom block split body (11);
G. hooking the hoisting rings (2-3) by using a hoisting tool to hoist, hoisting each bottom block split body (11) into the molten salt chlorination furnace, and forming a circular shape; in the hoisting process, the lifting appliance bottom plate (2-1) is separated from the construction platform (1), and the lifting appliance bottom plate (2-1) supports the bottom block split body (11);
H. cutting off the hanger rod (2-2) from the bottom of the preformed hole (8), and filling the preformed hole (8) with refractory materials;
I. refractory materials are filled in gaps of the bottom block bodies (11).
2. The method for building the bottom block of the molten salt chlorination furnace according to claim 1, characterized by comprising the following steps: the construction platform (1) is built by light clay refractory bricks, and the flatness of the construction platform (1) is not more than 2 mm.
3. The method for building the bottom block of the molten salt chlorination furnace according to claim 1, characterized by comprising the following steps: three lifting appliances (2) are arranged in each small building area (4-1), the lifting appliances (2) are positioned in the middle of the small building area (4-1), and the mutual included angles of the three lifting appliances (2) are all 120 degrees.
4. The method for building the bottom block of the molten salt chlorination furnace according to claim 1, characterized by comprising the following steps: the number of bottom block layers (10) is eight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811351321.0A CN109520304B (en) | 2018-11-14 | 2018-11-14 | Building method of bottom block of molten salt chlorination furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811351321.0A CN109520304B (en) | 2018-11-14 | 2018-11-14 | Building method of bottom block of molten salt chlorination furnace |
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| Publication Number | Publication Date |
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| CN109520304A CN109520304A (en) | 2019-03-26 |
| CN109520304B true CN109520304B (en) | 2020-02-04 |
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| CN201811351321.0A Active CN109520304B (en) | 2018-11-14 | 2018-11-14 | Building method of bottom block of molten salt chlorination furnace |
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| CN114518103B (en) * | 2022-02-18 | 2023-08-15 | 中国十九冶集团有限公司 | Photoelectric imaging auxiliary paying-off method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| ES8302287A1 (en) * | 1981-02-09 | 1982-12-16 | Detrick M H Co | Method of veneering brick linings of furnaces and other high temperature enclosures. |
| US6673306B2 (en) * | 2001-04-13 | 2004-01-06 | North American Refractories Co. | Refractory lining for metallurgical vessel |
| CN103471396B (en) * | 2013-09-26 | 2015-05-20 | 福建乾达重型机械有限公司 | Masonry construction structure of heating furnace bottom |
| CN106382821B (en) * | 2016-08-30 | 2018-09-21 | 安阳市岷山有色金属有限责任公司 | A kind of building method of reduction inner lining of furnace |
| CN106323005A (en) * | 2016-08-31 | 2017-01-11 | 合肥恒力装备有限公司 | Building method for heat insulation materials on top of hearth |
| CN108225026A (en) * | 2018-02-09 | 2018-06-29 | 攀钢集团攀枝花钢钒有限公司 | It carbonization electric furnace body structure and its builds by laying bricks or stones and maintaining method |
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