CN201876095U - One-step lead-smelting blast furnace - Google Patents

Abstract

The utility model relates to a one-step lead-smelting blast furnace belonging to lead-pyrometallurgy equipment. The one-step lead-smelting blast furnace comprises an erected furnace body (1); the upper section of the furnace body (1) is provided with a furnace body bracket (2) consisting of channels, a smoke gas cover (3) and a smoke exhaust pipe (4); two symmetric charging holes (5 and 6) are arranged at two sides of the smoke dust cover (3); a charging platform (7) is formed at the two charging holes (5 and 6) of the furnace body bracket (2); the lower section of the furnace body (1) is provided with a fused bath (8) which is formed by high-aluminium or high-magnesium fire clays; a slag discharging hole and a fused mass discharging siphon hole (9) are arranged at one side of the fused bath (8) respectively; a thin furnace lining is clung to the internal furnace wall at the middle section of the furnace body (1); a lower-layer water jacket (10), a middle-layer water jacket (11) and an upper-layer water jacket (12) are arranged on the furnace wall; coil pipes in the three layers of water jackets are sequentially connected in series with one another from top to bottom; a total water inlet (13) and a total water outlet (14) that are gathered can be communicated with a water storage tank of a powerless water circulation system by a pipeline. The one-step lead-smelting blast furnace is convenient to charge, has good stability of furnace body and can realize continuous lead-smelting operation.

Description

One step refining lead blast furnace

Technical field

The utility model relates to the plumbous equipment of pyrometallurgical smelting, specifically is a kind of step refining lead blast furnace.

Background technology

At present, there are two problems technically in the plumbous stove of traditional pyrometallurgical smelting, and the one, the outside no heat sink design of blast furnace body of heater high temperature position, working continuously can not be long, otherwise body of heater is out of shape and even burns.Thereby the life-span in furnace life is short, yields poorly, energy and material consumes height, the 2nd, and furnace cavity structure is science not, can not use step refining splicer skill.

With the similar prior art of the utility model be, on November 5th, 1997 Chinese utility model patent Granted publication CN 2266602Y, " the small-sized pyrometallurgical smelting matte stove " of the monarch Han Zheng institute utility model of Zhouzhuang, Shahe City, disclosed Hebei province, this stove connects following shaft, last shaft and petticoat pipe successively by cupola well (being equivalent to furnace chamber) top and is formed, there is the water jacket that links to each other with aqua storage tank the furnace wall of following shaft, the blast furnace outside has the eye of wind, cupola well one side that melt discharging throat mouth is arranged; Though this stove has the heat sink design, but the furnace charge of charge door is to promote hopper by hoist engine to realize charging, and when the shaft height acquired a certain degree, the reinforced work of charge door was restricted, reinforced inconvenient, the hoist engine track of shaft one side connection simultaneously makes the body of heater bad stability.

The utility model content

Technical problem to be solved in the utility model is to overcome the deficiency that exists in the traditional drum wind furnace technology, and a kind of step refining lead blast furnace is provided, and the reinforced convenience of this blast furnace charge door, body of heater good stability can be realized the continual lead smelting operation.

The technical solution of the utility model is: a kind of step refining lead blast furnace, the body of heater that comprises vertical installation, the epimere of body of heater has by channel-section steel and constitutes furnace body support, flue dust cover and smoke exhaust pipe, and there is the charge door of two symmetries on the both sides of flue dust cover, and furnace body support forms a charging scffold at two charge door places; The body of heater hypomere has the molten bath of high alumina matter or magnesite refractory bagger, and a side in molten bath cinder notch and the melt discharging siphon port that begins to rehearse is respectively posted thin-lining in the furnace wall, stage casing of body of heater, set on the furnace wall, in, last three layers of water jacket; Coil pipe in three layers of water jacket presses, in, on series connection successively, the total water inlet of being assembled and total delivery port communicate with the aqua storage tank of unpowered water circulation system by pipeline; Wherein, the orlop water jacket connects total water inlet near the upper edge, molten bath, and the part coil pipe in the superiors' water jacket is coiled in the charge door rib of both sides, and the superiors' water jacket connects total delivery port; The upper edge in described molten bath and the junction of furnace wall also are provided with blast orifice and all press the air channel; Go back water receiving cover chute on the described slag-drip opening, water jacket chute back connects iron gold-plating separator;

Operation principle of the present utility model is: furnace charge is poured charge door from charging scffold into small handcart, allocates a certain proportion of coke into, and additive after lighting, is entered air by the air blast of variable-frequency motor control and all to press the air channel, is blown in the coke combustion-supporting after all pressing.Furnace charge, additive on coke are preheated fusing, and produce the reducing-matting smelting reaction in stove, can obtain lead bullion (or metal) in the molten bath and discharge from melt discharging throat mouth.Slags such as most of iron and calcium sulfonium are discharged from slag-drip opening, through the temperature adjustment of water jacket chute, enter the iron gold-plating and separate and Water Quenching.The utility model is in melting, and cooling water relies on deadweight to produce unpowered water circulation from aqua storage tank by pipeline and enters the furnace wall, take away a part of heat, make furnace lining keep lower temperature, can realize the long-time continuous melting.Zinc, the cadmium of flue gas that the stove internal combustion produces and small part lead, antimony, bismuth and the overwhelming majority enter flue dust; Emptying after smoke exhaust pipe enters sack cleaner, screen collector and desulfurizing tower.

Compare with traditional drum wind furnace technology, the utility model vertical structure, compact conformation, it sets up the coil arrangement water jacket at the following shaft outer wall high temperature position of blast furnace, utilizes the cooling of water Natural Circulation, and stove off-balancesheet temperature is remained between 60-80 ℃, avoided body of heater distortion or burnt, make blast furnace to work continuously, stream time is long, and the daily output improves three times.Employing constitutes furnace body support body of heater good stability by channel-section steel, utilizes charging scffold to pour furnace charge into charge door with small handcart, has saved lifting device, and reinforced convenient, cost is low, and is energy-conservation; The utility model is also by solid sulfonium slag, reduced sulfur dioxide flue gas row and sent out and cause environmental pollution.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is done further explanation.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is Fig. 1 side structure schematic diagram.

Among the figure: 1 body of heater; 2 supports; 3 flue dust covers; 4 smoke exhaust pipes; 5 charge doors; 6 charge doors; 7 charging scffolds; 8 molten baths; 9 melts discharging siphon port; 10 lower floor's water jackets; 11 middle level water jackets; 12 upper strata water jackets; 13 total water inlets; 14 total delivery ports; 15 blast orifices; 16 water jacket chutes.

The specific embodiment

With reference to Fig. 1 is an embodiment of the present utility model, and its structure as mentioned above.A kind of step refining lead blast furnace, the body of heater 1 that comprises vertical installation, it is characterized in that: the epimere of body of heater 1 has by channel-section steel and constitutes furnace body support 2, flue dust cover 3 and smoke exhaust pipe 4, there are charge door 5 and charge door 6 in the both sides of flue dust cover 3, and furnace body support 2 forms a charging scffold 7 at charge door 5 and charge door 6 places; Body of heater 1 hypomere has the molten bath 8 of high alumina matter or magnesite refractory bagger, and a side in molten bath 8 cinder notch and the melt discharging siphon port 9 that begins to rehearse is respectively posted thin-lining in the furnace wall, stage casing of body of heater 1, set on the furnace wall layer water jacket 10,, middle level water jacket 11, upper strata water jacket 12; Coil pipe in three layers of water jacket presses, in, on series connection successively, the total water inlet of being assembled 13 and total delivery port 14 communicate with the aqua storage tank of unpowered water circulation system by pipeline; Wherein, orlop water jacket 10 connects total water inlet 13 near 8 upper edges, molten bath, and the part coil pipe in the superiors' water jacket 12 is coiled in charge door 5 and charge door 6 ribs, and the superiors' water jacket connects total delivery port 14); The upper edge in described molten bath 8 and the junction of furnace wall also are provided with blast orifice 15 and all press the air channel; Go back water receiving cover chute 16 on the described slag-drip opening, water jacket chute 16 back connect iron gold-plating separator.

Claims (1)

1. a step is refined lead blast furnace, the body of heater (1) that comprises vertical installation, it is characterized in that: the epimere of body of heater (1) has by channel-section steel and constitutes furnace body support (2), flue dust cover (3) and smoke exhaust pipe (4), there is the charge door (5,6) of two symmetries on the both sides of flue dust cover (3), and furnace body support (2) locates to form a charging scffold (7) at two charge doors (5,6); Body of heater (1) hypomere has the molten bath (8) of high alumina matter or magnesite refractory bagger, a side of molten bath (8) cinder notch and the melt discharging siphon port (9) that begins to rehearse respectively; Post thin-lining in the furnace wall, stage casing of body of heater (1), set on the furnace wall, in, last three layers of water jacket (10,11,12); Coil pipe in three layers of water jacket presses, in, on series connection successively, the total water inlet of being assembled (13) and always delivery port (14) communicate with the aqua storage tank of unpowered water circulation system by pipeline; Wherein, orlop water jacket (10) connects total water inlet (13) near upper edge, molten bath (8), and the part coil pipe in the superiors' water jacket (12) is coiled in both sides charge door (5, the 6) rib, and the superiors' water jacket connects total delivery port (14); The upper edge in described molten bath and the junction of furnace wall also are provided with blast orifice (15) and all press the air channel; Go back water receiving cover chute (16) on the described slag-drip opening, water jacket chute (16) back connects iron gold-plating separator.

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