CN103024958A - Electrode shell for large-sized calcium carbide furnaces and manufacturing method thereof - Google Patents
Electrode shell for large-sized calcium carbide furnaces and manufacturing method thereof Download PDFInfo
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- CN103024958A CN103024958A CN2013100040907A CN201310004090A CN103024958A CN 103024958 A CN103024958 A CN 103024958A CN 2013100040907 A CN2013100040907 A CN 2013100040907A CN 201310004090 A CN201310004090 A CN 201310004090A CN 103024958 A CN103024958 A CN 103024958A
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- housing
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- gusset
- shell
- fixing hole
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Abstract
The invention discloses an electrode shell for large-sized calcium carbide furnaces and a manufacturing method thereof. The electrode shell comprises cylinder segments connected in sequence. Each cylinder segment consists of a tubular shell. Rib plates distributed at equal intervals are longitudinally arranged on the inner side of each shell. The electrode shell is characterized in that fixing holes distributed at equal intervals are arranged at the upper and lower ends of each rib plate respectively, the fixing holes at the upper end of each rib plate are connected with the fixing holes at the lower end of one rib plate of the cylinder segment above the former rib plate through bolts, fixing pads used to assemble two adjacent cylinder segments are arranged on the inner sides of the connections at the upper and lower ends of each shell respectively, a connecting plate in butt joint with the shells of two adjacent cylinder segments is disposed on the outer side of each fixing pad. The electrode shell guarantees stability of a calcium carbide furnace, is higher in conductivity and meets the market requirement for calcium carbide products.
Description
Technical field
The present invention relates to a kind of electrode shell, relate in particular to a kind of electrode shell for large-scale furnace of calcium carbide.
Background technology
Calcium carbide is widely used in the numerous areas such as chemical industry, metallurgy, medicine as important industrial chemicals.At present, along with the fast development of China's economy, the demand of calcium carbide is also constantly increasing.The furnace of calcium carbide of past conventional small has not satisfied market to the demand of calcium carbide, and large-scale furnace of calcium carbide arises at the historic moment.In order to guarantee that large-scale furnace of calcium carbide steady production adopts self-baking sintered electrode system usually, wherein electrode shell is one of vitals of this system, and the quality of its performance is the production of the large-scale furnace of calcium carbide of impact directly.
Existing composite electrode holder rolls into the high 1.5m of cylinder with from training the normal 2～3mm of employing of electrode shell steel plate, and diameter is less than 1300mm, and the interior welds width is the gusset of 250～350mm, and the gusset upper punch has circular port or rectangular opening.Upper lower web plate in the electrode shell can't connect.The electrode shell shortcoming of this structure is: 1, conductive area is little, does not satisfy the needed high-power demand of large-scale furnace of calcium carbide; 2, gusset can't interconnect, and causes gusset continued access perpendicularity poor, and then makes large-scale furnace of calcium carbide Frequent Accidents.
Summary of the invention
For having problems in the prior art, the invention provides that a kind of gusset continued access perpendicularity is good, conductance is high, the electrode shell that is used for large-scale furnace of calcium carbide of stable performance and preparation method thereof.
The problem that exists in order to solve prior art, design of the present invention is:
A kind of electrode shell for large-scale furnace of calcium carbide, comprise the shell ring that links to each other successively, described shell ring is that the housing of tubular consists of, the inboard of described housing is vertically arranged with the gusset of equidistant placement, the up and down two ends of described gusset are respectively equipped with the fixing hole of equidistant placement, and the fixing hole of described gusset upper end is connected with the fixing hole bolt of the gusset lower end of the shell ring of its upper end; Described housing is the inboard, junction at two ends up and down, is respectively arranged be used to the fixedly backing plate of assembling adjacent two shell rings, and described fixedly backing plate arranged outside has the connecting plate that docks with the housing of two shell rings.
The diameter of described housing is 1500mm～1700mm, highly is 1500～2000mm.
Described gusset is set to 14～18.
Another embodiment of the present invention isPrepare the method for the electrode shell of large-scale furnace of calcium carbide, comprise the steps:
1.. with plate shearing machine cold-reduced sheet is cut into the steel plate that thickness is all size of 3mm;
2.. adopting veneer reeling machine that the steel plate of described step 1 is rolled into diameter is 1500 ~ 1700mm, highly is the housing of 1500 ~ 2000mm;
3.. adopt forcing press and bender that described step 1 light plate is made the up and down satisfactory gusset of two ends band fixing hole;
4.. adopt hydraulic press that the steel plate of described step 1 is made fixedly backing plate;
5.. adopt CO
2Gas shielded arc welding is the housing welding of the gusset of described step 3 and described step 2, wherein at 14～18 muscle sheets of housing inner circumferential uniform welding of described step 2;
6.. the lower end fixing hole of the fixing hole of the upper end of the gusset of described step 3 by the muscle sheet on the housing of bolt and the described step 2 in the upper end up and down housing of described step 2 is connected, if the housing height of described step 2 is 1500 ~ 2000mm, the total length of the muscle sheet of then described step 3 should be 1780mm～2280mm;
7. adopt electric resistance welding with the fixedly backing plate of the described step 4 of the inboard, junction at two ends about the housing of described step 2 and the housing welding of described step 2;
The fixedly backing plate of 8. described step 4 docks with the housing of described up and down step 2 respectively by connecting plate.
Beneficial effect of the present invention: the housing of electrode shell is respectively equipped with fixedly backing plate in the inboard, two ends up and down, dock by connecting plate between adjacent two shell rings, change the connected mode of traditional electrode shell employing socket joint, improved bonding strength, improved simultaneously processing and manufacturing efficient; The fixing hole of gusset upper end is connected with the fixing hole bolt of the gusset lower end of the shell ring of its upper end, and gusset is connected firmly each other, and the rigidity of whole electrode shell is improved, and has guaranteed the steady production of large-scale furnace of calcium carbide, reduces the furnace of calcium carbide accident and occurs.Fully contact with pressure rings by the electrode shell outer surface, overcome the conduction shortcoming of in the past line contact, enlarged conductive area, guaranteed the demand of large-scale furnace of calcium carbide high power conductive.
Manufacture method of the present invention can the manufacturing process complexity electrode shell, improved the electrode shell precision.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of adjacent cylindrical section docking of the present invention.
Fig. 3 is reinforcing plate structure schematic diagram of the present invention.
Embodiment
The invention will be further described for content by reference to the accompanying drawings:
Such as Fig. 1, Fig. 2, shown in Figure 3, the present invention is for being used for the electrode shell of large-scale furnace of calcium carbide, comprise the shell ring that links to each other successively, shell ring comprises the housing 1 of tubular, the inboard of described housing 1 vertically is provided with the gusset 2 of some equidistant placement, the up and down two ends of described gusset 2 are respectively equipped with the fixing hole 4 of some equidistant placement, and the fixing hole 4 of described gusset 2 upper ends is connected with fixing hole 4 bolts of gusset 2 lower ends of the shell ring of the upper end of its place shell ring; Generally, fixing hole 4 is 3.For example, the housing height of electrode shell is 1500mm, and the total length of gusset 2 is 1780mm, and the length that housing is stretched out in its upper end is 140mm, and the length that housing is stretched out in its lower end also is 140mm, and the length at its middle part is identical with housing.That is to say the separately length at the up and down two ends of gusset 2=(height of the total length-housing of gusset)/2.The inboard, up and down two ends of described housing 1 is welded with respectively fixedly backing plate 3, the described fixedly backing plate 3 arranged outside connecting plates 5 during the electrode shell assembling between adjacent two shell rings, and connecting plate 5 can make two adjacent shell rings dock.The inboard of described housing 1 is provided with the gusset of 14～18 equidistant placement.Electrode shell diameter after the present invention's welding is between 1500 ~ 1700mm, highly is 1500 ~ 2000mm, and its used cold-reduced sheet material thickness is 3mm ~ 3.5mm.
Manufacture process of the present invention, 1.. with plate shearing machine cold-reduced sheet is cut into the steel plate that thickness is all size of 3mm; 2.. adopting veneer reeling machine that steel plate is rolled into diameter is 1500 ~ 1700mm, highly is the housing 1 of 1500 ~ 2000mm; 3.. adopt forcing press and bender that steel plate is made the up and down qualified gusset 2 of two ends band fixing hole 4; 4.. adopt hydraulic press that steel plate is made fixedly backing plate 3; 5.. adopt CO
2The protection weldering of gas is with gusset 2 and housing 1 welding, wherein at 14～18 gussets 2 of housing 1 inner circumferential uniform welding; 6.. the fixing hole 4 of gusset 2 upper ends in this housing is connected by the gusset lower end fixing hole 4 in the housing of housings upper end, bolt and gusset 2 place, if housing 1 highly at 1500 ~ 2000mm, then the total length of gusset 2 is at 1780mm～2280mm; 7. adopt electric resistance welding with the fixedly backing plate 3 and housing 1 welding of housing inboard junction, two ends about in the of 1, thereby make qualified electrode shell; 8. the calcium carbide workshop that is assembled in of electrode shell is finished, and assembling is docked with the housing of shell ring up and down respectively by connecting plate 5 and finished.For example, the large-scale furnace of calcium carbide that separate unit is 100,000 ton/years, the diameter of electrode shell middle shell are 1600mm, highly are 1800mm, and the quantity of gusset is 16.
Above embodiment is described preferred implementation of the present invention; be not that scope of the present invention is carried out limit; design under the prerequisite of spirit not breaking away from the present invention; those of ordinary skills all should fall into the protection range that claims of the present invention are determined to various distortion and transformation that the present invention makes.
Claims (4)
1. electrode shell that is used for large-scale furnace of calcium carbide, comprise the shell ring that links to each other successively, described shell ring is that the housing of tubular consists of, the inboard of described housing is vertically arranged with the gusset of equidistant placement, it is characterized in that: the up and down two ends of described gusset are respectively equipped with the fixing hole of equidistant placement, and the fixing hole of described gusset upper end is connected with the fixing hole bolt of the gusset lower end of the shell ring of its upper end; Described housing is the inboard, junction at two ends up and down, is respectively arranged be used to the fixedly backing plate of assembling adjacent two shell rings, and described fixedly backing plate arranged outside has the connecting plate that docks with the housing of two shell rings.
2. electrode shell according to claim 1, it is characterized in that: the diameter of described housing is 1500mm～1700mm, highly is 1500～2000mm.
3. electrode shell according to claim 1, it is characterized in that: described gusset is set to 14～18.
4. one kind prepares claim 1 method, comprises the steps:
1.. with plate shearing machine cold-reduced sheet is cut into the steel plate that thickness is all size of 3mm;
2.. adopting veneer reeling machine that the steel plate of described step 1 is rolled into diameter is 1500 ~ 1700mm, highly is the housing of 1500 ~ 2000mm;
3.. adopt forcing press and bender that described step 1 light plate is made the up and down satisfactory gusset of two ends band fixing hole;
4.. adopt hydraulic press that the steel plate of described step 1 is made fixedly backing plate;
5.. adopt CO
2Gas shielded arc welding is the housing welding of the gusset of described step 3 and described step 2, wherein at 14～18 muscle sheets of housing inner circumferential uniform welding of described step 2;
6.. the lower end fixing hole of the fixing hole of the upper end of the gusset of described step 3 by the muscle sheet on the housing of bolt and the described step 2 in the upper end up and down housing of described step 2 is connected, if the housing height of described step 2 is 1500 ~ 2000mm, the total length of the muscle sheet of then described step 3 should be 1780mm～2280mm;
7. adopt electric resistance welding with the fixedly backing plate of the described step 4 of the inboard, junction at two ends about the housing of described step 2 and the housing welding of described step 2;
The fixedly backing plate of 8. described step 4 docks with the housing of described up and down step 2 respectively by connecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310004090.7A CN103024958B (en) | 2013-01-07 | 2013-01-07 | For the electrode shell manufacture method of large-scale furnace of calcium carbide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310004090.7A CN103024958B (en) | 2013-01-07 | 2013-01-07 | For the electrode shell manufacture method of large-scale furnace of calcium carbide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103024958A true CN103024958A (en) | 2013-04-03 |
| CN103024958B CN103024958B (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310004090.7A Active CN103024958B (en) | 2013-01-07 | 2013-01-07 | For the electrode shell manufacture method of large-scale furnace of calcium carbide |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109297309A (en) * | 2018-11-21 | 2019-02-01 | 韩爱华 | A kind of novel holder formula electrode shell structure and its installation butt-joint process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3513245A (en) * | 1968-11-22 | 1970-05-19 | Air Reduction | Method and apparatus for joining shell sections of soderberg electrodes |
| CN101990327A (en) * | 2009-08-06 | 2011-03-23 | 登封电厂集团铝合金有限公司 | Electrode shell of large submerged arc furnace |
| CN202261900U (en) * | 2011-10-08 | 2012-05-30 | 云南永昌硅业股份有限公司 | Reinforced electrode housing for combined controller ferrosilicon smelting electric arc furnace |
| CN202336689U (en) * | 2011-07-04 | 2012-07-18 | 韩爱华 | Automatic welding mechanism for electrode case assembly |
| CN203015165U (en) * | 2013-01-07 | 2013-06-19 | 中国天辰工程有限公司 | Electrode casing for large-scale calcium carbide furnace |
-
2013
- 2013-01-07 CN CN201310004090.7A patent/CN103024958B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3513245A (en) * | 1968-11-22 | 1970-05-19 | Air Reduction | Method and apparatus for joining shell sections of soderberg electrodes |
| CN101990327A (en) * | 2009-08-06 | 2011-03-23 | 登封电厂集团铝合金有限公司 | Electrode shell of large submerged arc furnace |
| CN202336689U (en) * | 2011-07-04 | 2012-07-18 | 韩爱华 | Automatic welding mechanism for electrode case assembly |
| CN202261900U (en) * | 2011-10-08 | 2012-05-30 | 云南永昌硅业股份有限公司 | Reinforced electrode housing for combined controller ferrosilicon smelting electric arc furnace |
| CN203015165U (en) * | 2013-01-07 | 2013-06-19 | 中国天辰工程有限公司 | Electrode casing for large-scale calcium carbide furnace |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109297309A (en) * | 2018-11-21 | 2019-02-01 | 韩爱华 | A kind of novel holder formula electrode shell structure and its installation butt-joint process |
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| Publication number | Publication date |
|---|---|
| CN103024958B (en) | 2015-10-28 |
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