CN201621962U - Compound furnace top for large-size zinc powder ore-smelting electric furnace - Google Patents
Compound furnace top for large-size zinc powder ore-smelting electric furnace Download PDFInfo
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- CN201621962U CN201621962U CN2010201632379U CN201020163237U CN201621962U CN 201621962 U CN201621962 U CN 201621962U CN 2010201632379 U CN2010201632379 U CN 2010201632379U CN 201020163237 U CN201020163237 U CN 201020163237U CN 201621962 U CN201621962 U CN 201621962U
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- electric furnace
- smelting electric
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Abstract
The utility model relates to a compound furnace top for a large-size zinc powder ore-smelting electric furnace, which comprises a brick building structure and a pouring molding structure positioned in the brick building structure, wherein the pouring molding structure is positioned in an electrode area and is provided with three electrode holes, and the brick building structure is provided with three feeding holes and three detecting holes. The utility model aims at the problems of the furnace top of the large-size zinc powder ore-smelting electric furnace and uses the compound furnace top formed by combining the brick building structure with the pouring molding structure. The electrode area in the furnace top is made of high-intensity undetermined fire-resistant materials. The area out of the electrode area is also provided with the brick building structure, which ensures that the furnace top has high-temperature intensity, is un-deformed, is difficult to drop and crack, has excellent sealing property and prolongs the service life.
Description
Technical field
The utility model belongs to the technical field of utilizing ore-smelting electric furnace to smelt zinc and zinc powder, particularly a kind of compound furnace roof of large-scale zinc powder ore-smelting electric furnace.
Background technology
Existing industrial zinc metallurgy method mainly contains pyrometallurgy of zinc and two kinds of methods of zinc hydrometallurgy.Pyrometallurgy of zinc adopts the material contain zinc oxide (as calcining etc.) to add coke and makes reducing agent, carries out reduction melting in sealed furnace under the hot conditions.And ore-smelting electric furnace smelting zinc powder is a kind of of pyrometallurgy of zinc, be with zinc dross or calcining, carbonaceous reducing agent, solvent, evenly mix, toast through the rotary kiln drying stove by the charge ratio of smelting requirements, add ore-smelting electric furnace reduction melting, make metallic zinc reduction, volatilization in the material; The zinc fume of reduction enters condenser with high-temperature flue gas, and cooling becomes the particulate zinc powder and is collected rapidly, purifies for zinc hydrometallurgy and removes impurity or as the usefulness of other industrial chemicals.Ore-smelting electric furnace zinc metallurgy powder craft is simple, be easy to realize mechanization and automation, and electric furnace also have volume little, take up an area of less, thermal efficiency height, reduced investment, pollution-free, characteristics such as metal recovery rate is high, adaptability to raw material is strong, the zinc powder of producing has fine size, quality is good, active strong, advantages such as reaction speed is fast, and diadochy is strong have promotional value widely.
Zinc powder ore-smelting electric furnace product is by closed ore-smelting electric furnace main body system, zinc powder condensation and gathering system, cooling water recirculation system, slag hardening system, compositions such as power supply and electric control system.Wherein, the ore-smelting electric furnace main body system is made up of water cooled furnace body, furnace roof, fire-resistant and insulation material masonry, electrode clamping and lowering or hoisting gear, short net, feeding device etc.; this system realizes that electric energy is converted to heat energy and chemical energy, guarantees the carrying out of chemical reaction and the formation of zinc fume.
Large-scale zinc powder ore-smelting electric furnace, the transformer capacity that is meant ore-smelting electric furnace here are 2000kVA, 3000kVA and above capacity, the zinc powder ore-smelting electric furnace that furnace diameter 4000mm is above.
The design of zinc powder ore-smelting electric furnace body comprises many aspects, and the structural design of furnace roof is one of its significant design composition.Should require the ore-smelting electric furnace furnace roof to have fire-resistant, insulation and airtight performance, prevent that high-temperature gas from overflowing; Because structural needs will be provided with electrode hole and charging aperture on furnace roof, these will be to the zinc powder ore-smelting electric furnace, the life-span and the reliability of operation of particularly large-scale zinc powder ore-smelting electric furnace (2000kVA, 3000kVA and above capacity) play a very important role again.Therefore, structural design and the selection to zinc powder ore-smelting electric furnace furnace roof fire resisting material masonry requires very strict.
Existing large-scale zinc powder ore-smelting electric furnace furnace roof mainly adopts two kinds of structures, and a kind of is brickwork construction, and another kind is integrated poured structure.
Because structural needs will design electrode hole at furnace roof, charging aperture, thermometer hole, pressure tap is visited cinder hole etc.Furnace roof adopts refractory brick to build vault by laying bricks or stones, uses fire-resistant pouring material cast in situs around electrode hole, the charging aperture respectively.Because of field condition restriction, construction quality is difficult to control, builds very easily high temperature corrosion of refractory matter around each hole, makes seldom surpass 1 year the service life of furnace roof, and corrosion back furnace roof easily emits and make cigarette leave with rage, causes environmental pollution and waste, also can cause safety problem.Brickwork construction furnace roof intensity difference, furnace roof easily cracks in process of production, even the top that collapses, and the life-span is short, and in large-scale zinc powder ore-smelting electric furnace, because furnace roof diameter big (more than the 4000mm), this problem is more outstanding.
In order to solve the problem of brickwork construction, the someone has proposed the structure of integrated poured furnace roof.In large-scale zinc powder ore-smelting electric furnace, adopt integrated poured top construction also to have some problems.Because the furnace roof diameter is bigger, integrated poured furnace roof once is not easy moulding, can not whole toast, and just can not guarantee the bulk strength of furnace roof.Adopt local baking also to be easy to generate crackle, influence furnace roof intensity.The piecemeal cast will exist the sealing problem of furnace roof, gas leakage easily.
Summary of the invention
[0009] the purpose of this utility model is to overcome above-mentioned prior art deficiency, has proposed the compound furnace roof of the large-scale zinc powder ore-smelting electric furnace of a kind of service life that can improve the zinc powder ore-smelting electric furnace and reliability.
For achieving the above object, the technical solution adopted in the utility model is: comprise by brickwork construction and the moulding by casting structure two parts that are positioned at brickwork construction and forming, wherein the moulding by casting structure is positioned at electrode district, the moulding by casting structure is provided with three electrode holes, i.e. 1# electrode hole, 2# electrode hole and 3# electrode hole; Brickwork construction is provided with three charging apertures and three detection holes, and said three charging apertures are respectively 1# charging aperture, 2# charging aperture and 3# charging aperture, and three are detected holes and are respectively thermometer hole, pressure tap and spy cinder hole.
The problem that the utility model exists at large-scale zinc powder ore-smelting electric furnace furnace roof, the furnace roof composite construction that adopts brickwork construction and moulding by casting structure to combine to whole furnace roof.Adopt the integral prefabricated shaping of high-strength indefinite form refractory matter at the furnace roof electrode district, still adopt brickwork construction beyond the electrode district, so both guaranteed the elevated temperature strength of furnace roof, indeformable, incrust and cracking, sealing is good again, and prolong service life greatly.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model; Fig. 2 is the vertical view of Fig. 1; Fig. 3 is the utility model moulding by casting structure 2 schematic diagrames.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Referring to Fig. 1,2,3, zinc powder ore-smelting electric furnace furnace roof is formed the furnace roof composite construction by moulding by casting structure (2) two parts in brickwork construction (1) and the electrode district, and wherein moulding by casting structure (2) is positioned at electrode district.Moulding by casting structure (2) in the electrode district is provided with three of electrode holes, is respectively 1# electrode hole (3), 2# electrode hole (4), 3# electrode hole (5); Brickwork construction (1) is provided with three of charging apertures, is respectively 1# charging aperture (6), 2# charging aperture (7), 3# charging aperture (8), (9) one of thermometer holes, and (10) one of pressure taps are visited (11) one of cinder holes.
The utility model has following major advantage: the construction of (1) electric furnace is simple, and baking is easy, furnace roof intensity height; (2) electric furnace reliability height, long service life, operating cost is low.
Claims (1)
1. the compound furnace roof of a large-scale zinc powder ore-smelting electric furnace, it is characterized in that: form by brickwork construction (1) and moulding by casting structure (2) two parts of being positioned at brickwork construction (1), wherein moulding by casting structure (2) is positioned at electrode district, moulding by casting structure (2) is provided with three electrode holes, i.e. 1# electrode hole (3), 2# electrode hole (4) and 3# electrode hole (5); Brickwork construction (1) is provided with three charging apertures and three detection holes, and said three charging apertures are respectively 1# charging aperture (6), 2# charging aperture (7) and 3# charging aperture (8), and three are detected holes and are respectively thermometer hole (9), pressure tap (10) and visit cinder hole (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201632379U CN201621962U (en) | 2010-04-20 | 2010-04-20 | Compound furnace top for large-size zinc powder ore-smelting electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201632379U CN201621962U (en) | 2010-04-20 | 2010-04-20 | Compound furnace top for large-size zinc powder ore-smelting electric furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201621962U true CN201621962U (en) | 2010-11-03 |
Family
ID=43025418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201632379U Expired - Fee Related CN201621962U (en) | 2010-04-20 | 2010-04-20 | Compound furnace top for large-size zinc powder ore-smelting electric furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201621962U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252517A (en) * | 2011-04-26 | 2011-11-23 | 洛阳市科创耐火材料有限公司 | Combined type arc furnace top preformed piece with low cost and long service life |
| CN103459961A (en) * | 2011-03-30 | 2013-12-18 | 现代制铁株式会社 | Roof for electric furnace |
| CN106091695A (en) * | 2016-06-15 | 2016-11-09 | 云南云铜锌业股份有限公司 | A kind of electric zinc furnace top construction |
-
2010
- 2010-04-20 CN CN2010201632379U patent/CN201621962U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103459961A (en) * | 2011-03-30 | 2013-12-18 | 现代制铁株式会社 | Roof for electric furnace |
| CN103459961B (en) * | 2011-03-30 | 2015-10-14 | 现代制铁株式会社 | The top cover of electric furnace |
| CN102252517A (en) * | 2011-04-26 | 2011-11-23 | 洛阳市科创耐火材料有限公司 | Combined type arc furnace top preformed piece with low cost and long service life |
| CN106091695A (en) * | 2016-06-15 | 2016-11-09 | 云南云铜锌业股份有限公司 | A kind of electric zinc furnace top construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20150420 |
|
| EXPY | Termination of patent right or utility model |