CN2490532Y

CN2490532Y - Bottom carbon lining build furnace of ore-smelting furnace

Info

Publication number: CN2490532Y
Application number: CN 01225676
Authority: CN
Inventors: 宁永章
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-05-22
Filing date: 2001-05-22
Publication date: 2002-05-08
Anticipated expiration: 2011-05-22

Abstract

A bottom carbon lining build furnace of ore-smelting furnace belongs to the bottom construction. A cast refractory cast layer (6) and a side wall cast layer (14) are arranged on a bottom fire brick layer (5); the middle part of the furnace is provided with a carbon material cushion coat (7), an old carbon brick layer (8), paste tampping layers special for normal temperature carbon building furnace (10), (11), (12) and (13); a dovetail groove (16) and rivet clasp holes (17) and (18) are embedded together and rivet clasped between the tampping layers; the surface of the lining is covered by burnt particles, and fuel is added to dry the furnace to make the components become a whole. The bottom is provided with multiple anti-leakage structures and different carbon special paste building furnaces with different additives are used according to different parts of the anti-leakage structures. The cost of the build furnace is saved. The utility model is mainly used for the heavy repair and technological upgrading of ore-smelting furnaces and aluminium cells.

Description

Ore deposit hot stove furnace bottom carbon lining brickwork

The utility model relates to the bottom construction of the hot stove in ore deposit.

Ferroalloy, industrial silicon, calcium carbide, yellow phosphorus all adopt mine heat furnace smelting, the hot stove bottom construction in ore deposit to be generally insulation layer, fire brick layer, the plain layer composition of charcoal in the prior art; The tradition furnace building process mainly relies on carbon lining to realize the technological requirement of high temperature resistant, anticorrosion and antiseep, the tradition carbon lining adopts brick fuel, smash paste with heat and build the gap, this method exists fries glance coal serious environment pollution when sticking with paste, it is healthy to influence the workman, and technology is wanted strict control, the careless slightly gap leakage that just occurs, cause brick fuel to float, liner is damaged in advance.Developed recently gets up, and cold smashing stuck with paste the whole brickwork of utilization what, defective such as have still that carbon material volume contraction Da Yi cracks, layering easily, physical and chemical index do not reach technological requirement, and service life is short.The designer uses " the hot stove in ore deposit is stuck with paste with the usually warm brickwork of charcoal is special-purpose " to carry out brickwork in recent years, make that carbon lining is anti-oxidant, wearing and tearing, molten iron infiltration, the corrode performance is greatly improved, for same stove, adopt the plain special-purpose brickwork of sticking with paste of same prescription charcoal to give prominence to the interior different parts of the hot stove in ore deposit to the different requirements of carbon lining physicochemical property.This brickwork scheme still mainly relies on the carbon lining antiseep.Suitable newly-built stove brickwork.

The purpose of this utility model is to provide a kind of ore deposit hot stove bottom lining brickwork method, mainly is applicable to overhaul and technological transformation such as hot stove in ore deposit and aluminium cell.It is to adopt to reduce former design furnace bottom fire brick layer height, increases one deck refractory material integral cast-in-situ layer, changes the former design fire brick layer of sidewall into the refractory material in-situ layer and makes thermal insulation layer; The carbon material bottom adopts old brick fuel to build the gap with special-purpose paste of the usually warm brickwork of charcoal, and establishes the carbon material bed course in old brick fuel bottom, makes between brick fuel and refractory material in-situ layer and does not produce the gap.Furnace bottom upper strata and lower sidewall adopt plain special-purpose paste of anti-corrode infiltration charcoal, side wall upper part adopts anti-oxidant and the plain special-purpose whole brickwork of sticking with paste of wearing and tearing charcoal, reach and make full use of material, save the brickwork cost, utilize the difference of multilayer material physicochemical property to form multiple antiseep barrier, prolong the liner purpose of service time.

Formation of the present utility model: constitute by steel plate of furnace hearth, side wall ring shaped steel plate, furnace bottom and sidewall heat-insulation layer, furnace bottom fire brick layer, furnace bottom and sidewall refractory material casting layer, carbon material bed course, old brick fuel layer, the special-purpose punning layer of sticking with paste of the usually warm brickwork of charcoal; On furnace bottom heat-insulation layer (2), be followed successively by the whole pouring layer of fire brick layer (5), refractory material (6), a carbon material bed course (7), old brick fuel layer (8) (building the gap), the usually warm brickwork of charcoal with special-purpose paste of the usually warm brickwork of charcoal special-purpose stick with paste punning layer (10), (11) and sidewall refractory material pouring layer (14) and sidewall endless belt stretch one's legs anti-corrode, the usually warm brickwork of infiltration charcoal is special-purpose sticks with paste punning layer (12) and the plain special-purpose punning layer (13) of sticking with paste of the oxidation resistant charcoal that resistance to wears, special-purpose stick with paste interlayer by dovetail groove (16) and rivet clasp hole (17), (18) embed mutually, rivet clasp; Except that topsheet surface, brush special creasote at the special-purpose punning layer upper surface of sticking with paste of the usually warm brickwork of every layer of charcoal.

Compared with the prior art, the utility model adopts the whole pouring layer of refractory material on furnace bottom refractory brick top, sidewall at the plain punning layer of charcoal has adopted annular refractory material pouring layer, adopted the carbon material bed course in carbon lining bottom bottom, the carbon material bottom adopts old brick fuel to build the gap with special-purpose paste of the usually warm brickwork of charcoal, carbon lining bottom top layer and sidewall lower floor adopt anti-corrode, soak into, the usually warm brickwork of the charcoal that washes away is special-purpose to be stuck with paste, side wall upper part adopts resistance to wears, the plain special-purpose brickwork of sticking with paste of oxidation resistant charcoal, additive and kind require to make up according to different smelting processes in special-purpose the paste, use this method brickwork can play the multibarrier effect of antiseep, even each interlayer cracks because of volume contraction, because of the layers of material physicochemical property inconsistent, crackle is difficult for connecting from top to bottom, and through check will not filled by furnace charge does not influence service life.And according to different parts in difference smelting kind and the stove liner physicochemical property is required difference, adopt different formulations material brickwork can save the brickwork cost, and can make full use of old brick fuel, suitable hot stove overhaul in ore deposit and technological transformation.

Accompanying drawing 1 is the utility model structural representation

Accompanying drawing 2 is vertical views of accompanying drawing 1

Accompanying drawing 3 is A-A cutaway views of accompanying drawing 1

Embodiment of the present utility model:

As shown in Figure 1, be welded with in the top of steel plate of furnace hearth (1) sidewall doughnut-shaped steel plate (3), furnace bottom heat-insulation layer (2) and furnace bottom fire brick layer (5), the whole pouring of refractory material layer (6) are arranged in steel plate of furnace hearth (1) top; In sidewall doughnut-shaped steel plate (3) inboard is sidewall heat-insulation layer (4), and monolithic refractory pouring layer (14) and fire brick layer (15); On bottom refractory material pouring layer (6) is carbon material bed course (7), special-purpose punning layer (10), (11) and special-purpose annular punning layer (12), (13) of sticking with paste of the usually warm brickwork of band rivet clasp hole sidewall charcoal of sticking with paste of the usually warm brickwork of circular charcoal of old brick fuel layer (8) and band dovetail groove (16) and rivet clasp hole (17), (18); In (8), (10), (11) between every layer by dovetail groove and rivet clasp hole embed mutually, rivet clasp.The plain punning layer of sidewall charcoal (12) is with and is stretched one's legs, and by the mutual rivet clasp in rivet clasp hole, brick fuel layer (8) gap (9) is rammed with the layering of the plain special-purpose paste of charcoal and built between the layer of (12), (13), the solid hole of interlayer riveter brush creasote (not shown).On plain special-purpose paste punning layer (13) of sidewall charcoal and refractory material in-situ layer (14) is annular tile layer (15), and refractory brick is built the refractory brick (not shown) by laying bricks or stones on (15).

Furnace drying method is not shown, can adopt the topped burnt grain in carbon lining surface, imbeds ventilation duct in the burnt grain, and refuelling heats up by certain heating curve and makes carbon lining become integral body.Ferro-alloy furnace can adopt topped burnt grain baker in the lump when the roasting electrode.

As shown in Figure 2:

Go up welding sidewall steel plate (3) at steel plate of furnace hearth (1), in sidewall steel plate (3), be followed successively by annular heat-insulation layer (4), sidewall refractory material in-situ layer (14) endless belt plain special-purpose punning layer (12) and the punning layer (13) stuck with paste of sidewall charcoal of stretching one's legs built refractory brick (15) by laying bricks or stones on (13), (14) behind the baker.To build drainage conduit (19) (not shown in figure 1) in the middle of punning layer (11), (12), (13) and can imbed special-purpose paste of the plain brickwork of charcoal with graphite electrode centre-drilling hole, the combination of also available brick fuel fluting build into.

As shown in Figure 3: be the A-A cutaway view, there are the dovetail groove (16) and rivet clasp hole (18) that are arranged in parallel rivet clasp hole (17) to be arranged above the punning layer (10) special-purpose paste of the usually warm brickwork of charcoal in the dovetail groove bottom, in charcoal usually warm brickwork special-purpose paste punning layer (10) outside is annular sidewall refractory material in-situ layer (14), annular sidewall heat-insulation layer (4) and sidewall doughnut-shaped steel plate (3), doughnut-shaped steel plate (3) are welded on the steel plate (1), every layer of dovetail groove is horizontal among the figure, and every layer of dovetail groove changes direction during enforcement.

Schematic diagram is pressed the ferro-alloy furnace furnace bottom and is drawn, the hot stove bottom construction of different size and different process ore deposit design size is not quite similar, but structure unanimity, the aluminium cell furnace bottom is a rectangle, and there is electrode to draw, but the carbon lining structure is similar, changes the carbon paste prescription, and this method can be used for brickworks such as aluminium cell blast furnace.

Claims

1, the hot stove bottom lining in a kind of ore deposit brickwork, constitute with the special-purpose punning layer of sticking with paste of the usually warm brickwork of charcoal by steel plate of furnace hearth, sidewall annular steel plate, heat-insulation layer, fire brick layer, monolithic refractory pouring layer, the hot stove brickwork of old brick fuel layer and ore deposit, it is characterized in that: in fire brick layer (5) top is monolithic refractory pouring layer (6), annular monolithic refractory pouring layer (14), carbon material bed course (7), old brick fuel layer (8), the gap of (8) and upper surface thereof are that the hot stove brickwork in ore deposit is stuck with paste punning body (9) with the usually warm brickwork special use of charcoal; (8), be that the hot stove brickwork in ore deposit is stuck with paste punning layer (10) with the usually warm brickwork special use of charcoal on (9); The furnace bottom top layer is for containing anti-corrode, the hot stove brickwork in the ore deposit of permeating additive is stuck with paste punning layer (11) with the usually warm brickwork special use of charcoal, the annular of stretching one's legs for band in the wall lining bottom contains anti-corrode, the hot stove brickwork in the ore deposit of permeating additive is stuck with paste punning layer (12) with the usually warm brickwork special use of charcoal, (12) wear-resisting on for containing of annular, the hot stove brickwork in the ore deposit of antioxidant constitutes with the special-purpose punning layer (13) of sticking with paste of the usually warm brickwork of charcoal, the hot stove brickwork in ore deposit is stuck with paste punning layer (9) with the usually warm brickwork special use of charcoal, (10), (11) between by dovetail groove (16), rivet clasp hole (17), (18) embed mutually, rivet clasp, (11), (12), (13) interlayer is by rivet clasp hole (18) rivet clasp, except that top layer, brush special creasote at every layer of upper surface.