CN101430163B - Multicenter burner gas distributer for short-process reduction zinc powder fabrication - Google Patents
Multicenter burner gas distributer for short-process reduction zinc powder fabrication Download PDFInfo
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- CN101430163B CN101430163B CN2008101835440A CN200810183544A CN101430163B CN 101430163 B CN101430163 B CN 101430163B CN 2008101835440 A CN2008101835440 A CN 2008101835440A CN 200810183544 A CN200810183544 A CN 200810183544A CN 101430163 B CN101430163 B CN 101430163B
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Abstract
The invention discloses a multichannel furnace gas distributor for manufacturing short stage reducing zinc dust. The furnace gas distributor mainly comprises three parts: an upper part is the multichannel furnace gas distributor; a center part is a dust formation hopper; a lower part is an ash exhauster; and the three parts are connected to form a whole. The distributor can ensure that a large scale closed-loop ore-smelting electric furnace can be effectively configured with a plurality of condensers at the same time, which meets the requirement of production line upsizing of the short stage reducing zinc dust and eliminates the restriction of a single channel furnace throat on device upsizing. After optimization design on the multichannel furnace gas distributor, the multichannel furnace gas distributor ensures that furnace gas uniformly flows into a plurality of condensers. The invention eliminates the influence of the flow section variation of the single channel furnace throat on quantity of air flow which enters each condenser, realizes that the each condenser produces in uniform load, and ensures that each condenser gives play to capability. The distributor can play a role in eliminating furnace throat blockage, guaranteeing sealing power discharging, and preventing furnace gas escaping, thus enabling the development requirement of the short stage reducing zinc dust.
Description
Technical field
The present invention relates to non-ferrous metal metallurgy equipment, specifically, the present invention is a kind of short-process reduction zinc powder manufacturing multicenter burner gas distributer.
Background technology
At present, short-process reduction zinc powder is mainly used in the nonferrous metallurgical process as displacer, because of its fine size, many advantages such as activity is good, cost is low, replaces the application in the sector of blowing zinc powder and distillation zinc powder substantially.This technology main equipment comprises: closed ore-smelting electric furnace 1, furnace throat 2, condenser 3.Its technical process comprises following three steps (Fig. 1 is seen in the equipment configuration):
A, material containing zinc, reducing agent and flux are added closed ore-smelting electric furnace 1, under the suitable temperature and atmosphere, the oxidation state zinc in the furnace charge is reduced into the zinc fume of metallic state in stove, and zinc fume mixes the formation furnace gas with other gas of electric furnace generation.
B, furnace gas directly enter condenser 3 by straight tube furnace throat 2.Contained part dust of furnace gas and fused mass deposit in furnace throat, lump, and cause the furnace gas flow area more and more littler, thereby often cleaning of furnace throat 2, and be unimpeded to guarantee that furnace gas flows.
C, furnace gas are in the condenser 3 sharp fall temperature of having to go to the toilet, and the zinc fume rapid condensation becomes reduction zinc powder (final products), and cooled residue furnace gas leaves condenser 3 and enters and gather dust and comprehensive recovery system.
Along with the progress of smelting technique, the closed ore-smelting electric furnace that is used for the zinc smelting is just towards large scale development, and existing heap(ed) capacity has reached 5000kVA, and zinc metallic reducing evaporability can reach 1500kg/h.And the condensation of zinc fume is a metal from gaseous state to solid-state and discharge the process of a large amount of heats, the zinc metal lumps on condenser pipe and water-cooling wall easily in this course, and also owing to the reason of all many-sides such as structural design, cause single condenser condenses ability to be restricted, the maximum reduction zinc powder condensation ability of present single condenser is 600kg/h.For solving the two main equipment production capacities contradiction that do not match, existing method is closed ore-smelting electric furnace configuration two covers or multiple muffle furnace larynx and condenser (Fig. 2 and Fig. 3 are seen in the equipment configuration), though solved two main equipment production capacity matching problems, but be difficult to the defective that overcomes below having produced: the furnace gas that the closed ore-smelting electric furnace is produced maldistribution on each condenser causes the condenser production capacity can not give full play to and the production process instability.Because:
1., the gas passage of two furnace throats caking speed and caking size can not one to, thereby it is inequality to flow to the air-flow size of two condensers at synchronization, one of them underload, and another excess load, this imbalance acquires a certain degree and will make output sharply reduce even cause the generation of security incident.
2., in cleaning furnace throat process, can not guarantee cleaning simultaneously, also can not guarantee the big or small unanimity of its gas passage of furnace throat of having cleared up, thereby can not guarantee that equally furnace gas evenly flows to two condensers.
2.2 existing furnace throat be the straight barrel structure (see figure 4) of circular or square band tapping pin, is not with ash bucket and ash exhauster, the one head connects closed ore-smelting electric furnace, other end connection condenser.This kind structure is not easy to clear up dust stratification and caking, and causes the furnace pressure rapid fluctuation easily when cleaning, is unfavorable for steady production.Because:
1., furnace throat do not have ash bucket and ash exhauster, when the cleaning the inside produces dust stratification and caking, can only push dust stratification and caking in the closed ore-smelting electric furnace to, operation is inconvenience very.
2., the closed ore-smelting electric furnace working of a furnace is stable during ordinary production, pressure oscillation is little.But during furnace throat, the dust stratification and the caking that contain part metals zinc enter suddenly in the molten bath in cleaning, cause that zinc fume produces in a large number, furnace pressure acutely raises, and when serious even the closed ore-smelting electric furnace phenomenon of rushing to summit takes place, cause the generation of the person and device security accident.
Summary of the invention
As mentioned above, present closed ore-smelting electric furnace is big more, and the reduction zinc powder specific energy consumption is low more, so the short-process reduction zinc powder equipment enlarging is the requirement of the energy-conservation industrial policy of national environmental protection, can reduce cost to enterprise again simultaneously, be the inexorable trend of the sector Future Development.And in the equipment enlarging process, existing furnace throat becomes main restricting factor.
Purpose of the present invention is exactly a kind of novel furnace throat that can guarantee that a large-scale closed ore-smelting electric furnace and many condensers can matched well and can equalization stable production of invention---and be burner gas distributer, to solve the problem that prior art exists, satisfy the needs of short-process reduction zinc powder industry development.
In order to realize above-mentioned goal of the invention, the present invention by the following technical solutions:
A kind of short-process reduction zinc powder manufacturing multicenter burner gas distributer comprises three major parts: top is the multicenter burner gas distributor chamber, and mid portion is an ash bucket, and the bottom is an ash exhauster, and the connection of three parts is combined into as a whole.
Details are as follows for the 26S Proteasome Structure and Function of each several part:
1., multicenter burner gas distributor chamber: it is a multiaspect perforate that is made into metal material and the polyhedron die cavity of inner lining refractory, also all adopts the polyhedron die cavity of the multiaspect perforate of the strap clamp layer water jacket that metal materials are made into.Each perforate all has unique connection device, and wherein: a perforate of side is connected with closed ore-smelting electric furnace furnace gas export; All the other perforates of side are connected with condenser, and its perforate quantity equates with the condenser number; One side perforate down is connected with ash bucket.
Can decide hole shape size and size on mold cavity volume size, geomery and each face according to closed ore-smelting electric furnace furnace gas export geomery and furnace gas amount size.
2., ash bucket: it is a upper and lower surface perforate that is made into metal material and the polyhedron die cavity of inner lining refractory, also polyhedron die cavity that adopts the upper and lower surface perforate of the strap clamp layer water jacket that metal material is made into can be conical, square taper or polyhedral cone shaped.Top perforate is connected with the following perforate of multicenter burner gas distributor chamber; Following perforate is connected with perforate above the ash exhauster.
3., ash exhauster: it is a multiaspect die cavity that adopts the upper and lower surface perforate of the strap clamp layer water jacket that metal material is made into, and can be cylindrical, square column type or multiaspect cylindricality, and resistant to elevated temperatures metal sealed valve all is equipped with in its upper and lower surface perforate.Upper valve is connected with the following perforate of ash bucket; Following valve is used for ash discharge.
The present invention has following advantage:
1., this invention guarantees that a large-scale closed ore-smelting electric furnace can effectively dispose a plurality of condensers simultaneously, satisfied the needs that the short-process reduction zinc powder production line maximizes, and eliminated the restriction of single channel furnace throat to equipment enlarging.
2., the multicenter burner gas distributor chamber is through optimal design, it is equivalent to one and waits plenum chamber, guarantees that furnace gas evenly flows to a plurality of condensers.Eliminated single channel furnace throat flow section variation to entering the influence of each condenser furnace gas flow, realized each condenser, guaranteed the performance of condenser capacity in uniform load production.
3., dust that furnace gas is with and fused mass be deposited in the ash bucket, can not pile up around passage, can regularly remove and not influence furnace gas flowing smoothly from the closed ore-smelting electric furnace to condenser.Effectively eliminate furnace throat and stop up, dust stratification that contains part metals zinc that produces when eliminating the cleaning furnace throat and caking enter suddenly in the molten bath and cause that zinc fume produces in a large number, furnace pressure acutely raises even cause the rush to summit generation of phenomenon of electric furnace.
4., ash exhauster can guarantee sealing power discharging, prevents that furnace gas from leaking.When last valve open was put into ash exhauster to dust, lower valve was closed; Lower valve is opened dust when ash exhauster is emitted, and last valve is closed, thereby furnace gas can not leak.In addition, the water-cooling jacket shell is cooled dust effectively, prevents to hurt sb.'s feelings when high-temperature dust from emitting.
5., the condenser centralized arrangement, minimizing equipment takes up an area of, and reduces investment outlay.
Description of drawings
Fig. 1 is the configuration schematic diagram of existing single condenser short-process reduction zinc powder manufacturing equipment.
Fig. 2 is the configuration schematic diagram of existing many condensers short-process reduction zinc powder manufacturing equipment.
Fig. 3 is the configuration schematic diagram of existing another many condensers short-process reduction zinc powder manufacturing equipment.
Fig. 4 is the schematic diagram of the straight barrel structure furnace throat of existing band tapping pin.
Fig. 5 is the structural representation of the embodiment of the invention 1.
Fig. 6 is the A-A cutaway view of Fig. 5.
Fig. 7 is the structural representation of the embodiment of the invention 2.
Fig. 8 is the B-B cutaway view of Fig. 7.
Fig. 9 is the configuration schematic diagram that adopts the short-process reduction zinc powder manufacturing equipment of embodiment 1.
Figure 10 is the configuration schematic diagram that adopts the short-process reduction zinc powder manufacturing equipment of embodiment 2.
Description of reference numerals: 1. closed ore-smelting electric furnace; 2. furnace throat; 3. condenser; 4. furnace gas enters the mouth; 5. furnace gas export; 6. tapping pin; 7. multicenter burner gas distributor chamber; 8. ash bucket; 9. ash exhauster; 10. metal seal valve; 11. multicenter burner gas distributer.
The specific embodiment
As shown in Figure 5 and Figure 6, a kind of short-process reduction zinc powder manufacturing multicenter burner gas distributer, top is multicenter burner gas distributor chamber 7, mid portion is an ash bucket 8, the bottom is an ash exhauster 9, multicenter burner gas distributor chamber 7, ash bucket 8 and ash exhauster 9 three parts be connected be combined into as a whole.
Multicenter burner gas distributor chamber 7 is a multiaspect perforate that is made into metal material and the polyhedron die cavity of inner lining refractory.
In the described perforate, a perforate of side is connected with closed ore-smelting electric furnace 1 furnace gas export; The quantity of all the other perforates of side equates that with condenser 3 quantity each perforate is connected with a condenser 3.
Described ash exhauster 9 is the multiaspect die cavities that adopt the upper and lower surface perforate of the strap clamp layer water jacket that metal material is made into, and resistant to elevated temperatures metal seal valve 10 all is equipped with in its upper and lower surface perforate.
Adopt the short-process reduction zinc powder manufacturing equipment of this equipment mainly to comprise: closed ore-smelting electric furnace 1, multicenter burner gas distributer 11, condenser 3, as shown in Figure 9.
Its technical process comprises following several steps:
A, material containing zinc, reducing agent and flux are added closed ore-smelting electric furnace 1, under the suitable temperature and atmosphere, the oxidation state zinc in the furnace charge is reduced into the zinc fume of metallic state in stove, and zinc fume mixes the formation furnace gas with other gas of electric furnace generation.
B1, furnace gas enter multicenter burner gas distributor chamber 7 by closed ore-smelting electric furnace 1 steam vent, its speed slows down greatly, basically regard etc. it as pressurized air, dust that it is contained and fused mass are deposited in the ash bucket 8 so long, and remaining comparatively clean gas then evenly flows to each condenser 3.
B2, in ash bucket dust to reach a certain amount of be in time to clear up.The first step is at first opened the valve that ash exhauster 9 tops are connected with ash bucket 8, and dust in the ash bucket is put into ash exhauster 9, closes this valve then; Second step, treat dust cooling certain hour after, open ash exhauster 9 bottom valves, emit dust, close the bottom valve then.
C, furnace gas are in the condenser sharp fall temperature of having to go to the toilet, and the zinc fume rapid condensation becomes reduction zinc powder (product), and cooled residue furnace gas leaves condenser 3 and enters and gather dust and comprehensive recovery system.
As shown in Figure 7 and Figure 8, a kind of short-process reduction zinc powder manufacturing multicenter burner gas distributer, top is multicenter burner gas distributor chamber 7, mid portion is an ash bucket 8, the bottom is an ash exhauster 9, multicenter burner gas distributor chamber 7, ash bucket 8 and ash exhauster 9 three parts be connected be combined into as a whole.
Above-mentioned multicenter burner gas distributor chamber 7 is polyhedron die cavities of the multiaspect perforate of the strap clamp layer water jacket that be made into of metal material.
In the described perforate, a perforate of side is connected with closed ore-smelting electric furnace 1 furnace gas export; The quantity of all the other perforates of side equates that with condenser 3 quantity each perforate is connected with a condenser 3.
Described ash exhauster 9 is the multiaspect die cavities that adopt the upper and lower surface perforate of the strap clamp layer water jacket that metal material is made into, and resistant to elevated temperatures metal seal valve 10 all is equipped with in its upper and lower surface perforate.
Adopt the short-process reduction zinc powder manufacturing equipment of this equipment mainly to comprise: closed ore-smelting electric furnace 1, multicenter burner gas distributer 11, condenser 3, as shown in figure 10.
Its technical process is identical with embodiment 1.
More than short-process reduction zinc powder manufacturing provided by the present invention is described in detail with multicenter burner gas distributer, used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, part in specific embodiments and applications all may change.In sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. short-process reduction zinc powder manufacturing multicenter burner gas distributer, it is characterized in that: top is the multicenter burner gas distributor chamber, and mid portion is an ash bucket, and the bottom is an ash exhauster, three parts connect be combined into as a whole.
2. short-process reduction zinc powder manufacturing multicenter burner gas distributer according to claim 1 is characterized in that: described multicenter burner gas distributor chamber is the multiaspect perforate that is made into metal material and the polyhedron die cavity of inner lining refractory.
3. short-process reduction zinc powder manufacturing multicenter burner gas distributer according to claim 1 is characterized in that: described multicenter burner gas distributor chamber is the polyhedron die cavity of the multiaspect perforate of the strap clamp layer water jacket that be made into of metal material.
4. according to claim 2 or 3 described short-process reduction zinc powder manufacturing multicenter burner gas distributers, it is characterized in that: in the described perforate, a perforate of side is connected with closed ore-smelting electric furnace furnace gas export; The quantity of all the other perforates of side equates that with condenser quantity each perforate is connected with a condenser.
5. short-process reduction zinc powder manufacturing multicenter burner gas distributer according to claim 1 is characterized in that: described ash bucket is the upper and lower surface perforate that is made into metal material and the polyhedron die cavity of inner lining refractory.
6. short-process reduction zinc powder manufacturing multicenter burner gas distributer according to claim 1 is characterized in that: described ash bucket is the polyhedron die cavity that adopts the upper and lower surface perforate of the strap clamp layer water jacket that metal material is made into.
7. according to claim 5 or 6 described short-process reduction zinc powder manufacturing multicenter burner gas distributers, it is characterized in that: the described polyhedron die cavity side's of being taper.
8. short-process reduction zinc powder manufacturing multicenter burner gas distributer according to claim 1, it is characterized in that: described ash exhauster is the multiaspect die cavity that adopts the upper and lower surface perforate of the strap clamp layer water jacket that metal material is made into, and resistant to elevated temperatures metal seal valve all is equipped with in its upper and lower surface perforate.
9. short-process reduction zinc powder manufacturing multicenter burner gas distributer according to claim 8 is characterized in that: described multiaspect die cavity is a square column type.
10. a short-process reduction zinc powder manufacturing equipment is characterized in that: adopt any described multicenter burner gas distributer in the claim 1～9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101835440A CN101430163B (en) | 2008-12-18 | 2008-12-18 | Multicenter burner gas distributer for short-process reduction zinc powder fabrication |
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| CN2008101835440A CN101430163B (en) | 2008-12-18 | 2008-12-18 | Multicenter burner gas distributer for short-process reduction zinc powder fabrication |
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| CN101430163A CN101430163A (en) | 2009-05-13 |
| CN101430163B true CN101430163B (en) | 2011-07-27 |
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| CN115491504B (en) * | 2022-09-26 | 2023-11-14 | 董家驭 | Vacuum short-flow zinc collecting system and method for electric furnace steelmaking smoke dust |
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