CN207635869U - A kind of closed mineral hot furnace water cooled cover - Google Patents

Abstract

The utility model discloses a kind of closed mineral hot furnace water cooled covers, including bell center module group and bell edge module group, bell center module group is set to the inner ring of bell edge module group, it is equipped with multiple cooling water channels in bell center module group and bell edge module group, the number of cooling water channel of the number for the cooling water channel being distributed in bell center module than being distributed in bell edge module is more, and each cooling water channel is mutual indepedent；Bell center module group is equipped with multiple electrodes hole, and the circumferentially distributed of each electrode hole has multiple blanking holes, multiple exhaust smoke holes and pressure release valve opening are circumferentially staggeredly distributed in bell edge module group.According to the practical demand that exchanges heat, cooling water channel is rationally set, the reasonable temperature rise of entire bell cooling water is made, the risk for reducing cooling water pipeline fouling and blocking improves the service life of bell, reduces equipment operation maintenance cost, by modularized design, quick-assembling and replacement are realized, it is easy to maintenance.

Description

A kind of closed mineral hot furnace water cooled cover

Technical field

The utility model is related to smelting equipment technical fields, and in particular to a kind of closed mineral hot furnace water cooled cover.

Background technology

Ferroalloy is by one or more kinds of metals or the nonmetallic alloy combined with ferro element, it cannot function as directly The metal material used is connect, but is mainly used as the additive of the deoxidier and alloying element of steel production, so ferroalloy is One of steel and iron industry and the essential important source material of machine casting industry.Mineral hot furnace is also known as burried arc furnace, be with carbon be reduction Oxide of the agent in furnace reduction ore is come the method that produces ferroalloy, using electric energy as main energy sources in smelting process；Mine heat Stove can be with the ferroalloys kind such as smelting duriron, calcium-silicon, industrial silicon, high carbon ferromanganese, high carbon ferro-chrome, silicomangan, therefore mine Hot stove is widely used in China and the production of worldwide ferroalloy.

Mineral hot furnace presses its structure type, can be generally divided into opened type, semi-hermetic type and closed three kinds of forms.Early stage makes Opened type mineral hot furnace, fire door are directly exposed in air, and mechanization degree is low, are caused serious pollution to the environment, the work item of worker Part is poor.Environmental protection consciousness is increasingly enhanced with the continuous development and people of mineral hot furnace technology, semi-hermetic type and closed Formula mineral hot furnace is more and more applied, and especially closed mineral hot furnace has production efficiency height, and environmental pollution is small to be shown Work advantage.

The main equipment of mineral hot furnace is mainly by electrode, short net, furnace shell, bell, discharging device, feeding device and hydraulic system Deng composition, wherein bell collects smelting process for sealing burner hearth, reducing heat loss and improving the operating condition for smelting section The furnace gas of middle generation is the key equipment in mineral hot furnace equipment composition.

Mineral hot furnace bell is divided into two kinds of Non-water-cooled bell and water cooled cover.The Non-water-cooled bell of early stage mainly uses appropriate The refractory aggregate of grain size, mixes with the cementing material and admixture suitably matched, conserved in model through pouring into a mould and make firm by ramming and At.Since the bell of this form is from great, structural strength is low, and the resisting temperature sudden turn of events and physics performance of flushing are poor, and service life is short The shortcomings of, therefore be eliminated substantially；Novel Non-water-cooled bell, by box hat, heat insulation layer, insulating layer, safe floor and working lining group At, it is made respectively using materials such as advanced antiradiation spray paint, nano ceramic material, lightening casting materials, manufacture craft Complexity, cost is higher, and extensive use is not yet received at present.

Compared with Non-water-cooled bell, water cooled cover has conduct oneself with dignity small, low manufacture cost, good cooling results, maintenance and maintenance Conveniently, the features such as service life is long, is currently widely used a kind of bell form.However, since bell heat intensity is big, and It is uneven, it is heated in the middle part of bell to be far above edge, if therefore the water cooling design on bell cannot meet practical heat exchange demand, it will lead Cause middle part cooling capacity insufficient, the temperature liter of cooling water is excessively high, easily causes the adverse consequences such as Incrustation of pipe and blocking；And edge is cold But ability is superfluous, and the temperature liter of cooling water is too low, causes energy waste.

The utility model is intended to invent a kind of water cooled cover in closed mineral hot furnace, and the bell is according to practical heat exchange Cooling water channel is rationally arranged in demand, makes the reasonable temperature rise of entire bell cooling water, reduces the wind of cooling water pipeline fouling and blocking The service life of bell is improved in danger, reduces equipment operation maintenance cost.

Invention content

The technical problems to be solved in the utility model is in view of the foregoing defects the prior art has, to provide a kind of close Enclosed mineral hot furnace water cooled cover is rationally arranged cooling water channel, makes the Wen Shenghe of entire bell cooling water according to the practical demand that exchanges heat Reason reduces the risk of cooling water pipeline fouling and blocking, improves the service life of bell, reduces equipment operation maintenance cost, leads to Modularized design is crossed, realizes quick-assembling and replacement, it is easy to maintenance.

Used technical solution is the utility model to solve above-mentioned technical problem：

A kind of closed mineral hot furnace water cooled cover, including bell center module group and bell edge module group, bell edge Module group is annular, and bell center module group is set to the inner ring of bell edge module group, bell center module group and bell side Multiple cooling water channels are equipped in portion's module group, the number ratio for the cooling water channel being distributed in bell center module is distributed in bell The number of the cooling water channel of edge module is more, and each cooling water channel is mutual indepedent；Bell center module group is equipped with multiple electrodes hole, The circumferential direction of each electrode hole is distributed with multiple blanking holes, be circumferentially staggeredly distributed in bell edge module group multiple exhaust smoke holes and Pressure release valve opening.

According to above-mentioned technical proposal, bell center module group includes multiple bell center modules mutually spliced, Duo Gelu Lid center module is circumferentially uniformly distributed with the water cooled cover center；Bell edge module group includes multiple stoves mutually spliced Lid edge portion module, multiple bell edge modules are circumferentially uniformly distributed with the water cooled cover center.

According to above-mentioned technical proposal, each bell center module and each bell edge module include bottom panel and side Plate, side panel are set on bottom panel, and for side panel along the edge distribution of bottom panel, each bell center module is interior to be equipped at least two A cooling water channel, is equipped at least one cooling water channel in each bell edge module, cooling water channel include bottom surface cooling water channel and Side cooling water channel, bottom surface cooling water channel are set on bottom panel, and side cooling water channel is set on side panel, bottom surface cooling water Vertical water channel is connected between road and side cooling water channel, bottom surface cooling water channel is joined by vertical water channel and side cooling water channel It is logical.

According to above-mentioned technical proposal, the section of bottom surface cooling water channel is L-shaped, and the section of side cooling water channel is U-shaped.

According to above-mentioned technical proposal, it is all provided on each cooling water channel there are one water inlet and water outlet.

According to above-mentioned technical proposal, bell center module includes the first bell center module and the second bell center module, First bell center module and the second bell center module are symmetrical arranged；

Bell edge module includes 1 the first bell edge module and 2 the second bell edge modules, 2 the second bells Edge module is set to the both sides of 1 the first bell edge module；

Every 1 the first bell edge module, 1 the first bell center module and 1 the second bell center module annular are spelled It connects, forms an electrode hole, the second bell edge module is equipped with exhaust smoke hole or pressure release valve opening.

According to above-mentioned technical proposal, mutually spliced by attachment bolt between each module.

According to above-mentioned technical proposal, it is equipped with the first insulation board between each module, insulation sleeve is arranged on attachment bolt, couples The second insulation board is equipped with below bolt.

The utility model has the advantages that：

Burner hearth for sealing mineral hot furnace reduces heat loss and improves the operating condition for smelting section, and collects and smelted The furnace gas generated in journey, according to the practical demand that exchanges heat, the central temperature of water cooled cover is higher than edge temperature, and cooling water is rationally arranged Road makes the reasonable temperature rise of entire bell cooling water, reduces the risk of cooling water pipeline fouling and blocking, and that improves bell uses the longevity Life reduces equipment operation maintenance cost, while by modularized design, realizing quick-assembling and replacement, easy to maintenance.

Description of the drawings

Fig. 1 is the structural schematic diagram of closed mineral hot furnace water cooled cover in the utility model embodiment；

Fig. 2 is the structural schematic diagram of the first bell center module in the utility model embodiment；

Fig. 3 is the structural schematic diagram of the second bell center module in the utility model embodiment；

Fig. 4 is the structural schematic diagram of the first bell edge module in the utility model embodiment；

Fig. 5 is the structural schematic diagram of the second bell edge module in the utility model embodiment；

Fig. 6 is connection diagram between each bell module in the utility model embodiment；

Fig. 7 is the A-A sectional views of Fig. 5；

In figure, 1- the first bell center modules, 2- the second bell center modules, 3- the first bell edge modules, 4- second Bell edge module, 5- electrode holes, 6- blanking holes, 7- exhaust smoke holes, 8- pressure release valve openings, 9- bottom panels, 10- side panels, the sides 11- Plate trepanning, the bottom surfaces 12- cooling water channel, the sides 13- cooling water channel, 14- water inlets, 15- water outlets, the first insulation boards of 16-, 17- Insulation sleeve, the second insulation boards of 18-, 19- attachment bolts, 20- nuts, 21- elastic washers, the vertical water channels of 22-.

Specific implementation mode

The utility model is described in detail with reference to the accompanying drawings and examples.

Shown in referring to Fig.1~Fig. 7, closed mineral hot furnace water cooled cover in a kind of embodiment provided by the utility model, packet Bell center module group and bell edge module group are included, bell edge module group is annular, and bell center module group is set to stove Multiple cooling water channels are equipped in the inner ring of lid edge portion module group, bell center module group and bell edge module group, are distributed in The number of cooling water channel of the number of cooling water channel in bell center module than being distributed in bell edge module is more, each cooling water Road is mutual indepedent；Bell center module group is equipped with multiple electrodes hole 5, and the circumferential direction of each electrode hole 5 is distributed with multiple blankings Hole 6 is circumferentially staggeredly distributed with multiple exhaust smoke holes 7 and pressure release valve opening 8 in bell edge module group；Closed mineral hot furnace water cooled cover Burner hearth for sealing mineral hot furnace reduces heat loss and improves the operating condition for smelting section, and collects in smelting process and generate Furnace gas cooling water channel is rationally set, the reasonable temperature rise of entire bell cooling water is made, reduces cooling according to the practical demand that exchanges heat The risk of water lines fouling and blocking improves the service life of bell, reduces equipment operation maintenance cost.

Further, bell center module group includes multiple bell center modules mutually spliced, multiple bell center dies Block is circumferentially uniformly distributed with the water cooled cover center；

Bell edge module group includes multiple bell edge modules mutually spliced, and multiple bell edge modules are with described Water cooled cover center is circumferentially uniformly distributed.

Further, each bell center module and each bell edge module include bottom panel 9 and side panel 10, side Panel 10 is set on bottom panel 9, and along the edge distribution of bottom panel 9, each bell center module is interior to be equipped at least side panel 10 (two path water is arranged symmetrically two cooling water channels in module, is not connected between each other, i.e., heat exchange area is smaller, reduces total heat exchange Amount, while cooling water channel is shorter, resistance damage is smaller, and heat exchange efficiency is high), each bell edge module is interior to be equipped at least one cooling water Road, cooling water channel include bottom surface cooling water channel 12 and side cooling water channel 13, and bottom surface cooling water channel 12 is set on bottom panel 9, Side cooling water channel 13 is set on side panel 10, and vertical water is connected between bottom surface cooling water channel 12 and side cooling water channel 13 Road 22, bottom surface cooling water channel 12 pass through vertical water channel 22 and 13 unicom of side cooling water channel；It is combined by Modularized splice, makes water Cold passage more reasonable layout, cooling are more efficient.

Further, the section of bottom surface cooling water channel 12 is L-shaped, and the section of side cooling water channel 13 is U-shaped；By steel plate It curves, two kinds of water channel section forms, making is easy to process, and does not easily cause water route leak.

Further, water inlet 14 and water outlet 15 there are one being all provided on each cooling water channel.

Further, bell center module includes the first bell center module 1 and the second bell center module 2, the first stove Lid center module 1 and the second bell center module 2 are symmetrical arranged；

Bell edge module includes 4,2 the second stoves of 1 the first bell edge module 3 and 2 the second bell edge modules Lid edge portion module 4 is set to the both sides of 1 the first bell edge module 3；

3,1 the first bell center modules 1 of every 1 the first bell edge module and 12 annular of the second bell center module Splicing, forms an electrode hole 5, and the second bell edge module 4 is equipped with exhaust smoke hole 7 or pressure release valve opening 8.

Further, mutually spliced by attachment bolt 19 between each module；Side panel 10 is equipped with multiple trepannings, passes through Bolt is inserted into trepanning to be made mutually to splice between each module.

Further, it is equipped with the first insulation board 16 between each module, insulation sleeve 17 is arranged on attachment bolt 19, couples spiral shell 19 lower section of bolt is equipped with the second insulation board 18.

Further, the water cooled cover is disc.

Further, the number of bell center module is 6, respectively 3 the first bell center modules 1 and 3 second Circumferentially staggered point centered on water cooled cover of bell center module 2, the first bell center module 1 and the second bell center module 2 Cloth；

The number of bell edge module is 9, respectively 3 the first bell edge modules 3 and 6 the second bell edge moulds 4,3 the first bell edge modules 3 of block are circumferentially distributed with the center of water cooled cover, and each 2 second bell edge modules 4 are set to The both sides of 1 the first bell edge module 3；

3,1 the first bell center modules 1 of every 1 the first bell edge module and 12 annular of the second bell center module Splicing forms an electrode hole 5；In 3 the first bell edge modules, 3,3 the first bell center modules 1 and 3 the second bells Core module 2 collectively forms 3 circumferentially distributed motor holes；

3 the first bell edge modules, 3,3 the first bell center modules 1 and 32 common structures of the second bell center module At 3 circumferentially distributed motor holes.

Further, it is respectively provided with all the way in the first bell edge module 3 of bell edge and the second bell edge module 4 Cooling water, i.e. a water inlet and a water outlet 15, since edge temperature is relatively low, unit heat exchange amount is smaller, and cooling water channel is suitable Work as lengthening, increase heat exchange area, keeps cooling water temperature rise suitable per the warm liter of road water with bicycle middle module, energy utilization rate can be improved, Reduce equipment operation maintenance cost.

The operation principle of the utility model：

The utility model is the water cooled cover used in a kind of closed mineral hot furnace, and the burner hearth for sealing mineral hot furnace subtracts Few heat loss and the operating condition for improving smelting section, and collect the furnace gas generated in smelting process.Bell is disc-shaped structure, Respectively by three the first bell edge modules 3 of the first bell center module 2, three of the first bell center module 1, three and six Second bell edge module 4 forms, and each module distribution is as shown in Fig. 1, collectively constitutes a disc bell.

According to technological requirement, arrange that there are three the exhaust smoke hole 7 of blanking hole 6, two of electrode hole 5,13 and four on bell Pressure release valve opening 8.The center opening shape that electrode hole 5 is composed of the first bell center module 1 and the second bell center module 2 At, three electrode holes 5 are uniformly distributed in 120 °, for electrodes in mine hot stove by and sealing is provided.First bell center module 1 and the second stove Lid center module 2 is antimagnetic stainless steel welded forms.In the edge of the first bell center module 1 and the second bell center module 2 Be provided with 13 blanking holes 6, for mineral hot furnace tremie pipe by and sealing is provided.It is equipped on the every 120 ° of directions of edge of bell One the first bell edge module 3 respectively sets a second bell edge module 4, wherein two the second stoves respectively in its both sides It is respectively provided with an exhaust smoke hole 7 in lid edge portion module 4, for being connected with workshop flue, collects furnace gas and uses；In the second stove of four additional It is respectively provided with a pressure release valve opening 8 in lid edge portion module 4, is connected with pressure release valve device, for adjusting furnace pressure.First bell side Portion's module 3 and the second bell edge module 4 are that heat-resisting boiler steel is welded.

First bell center module 1, the second bell center module 2, the first bell edge module 3 and the second bell edge mould The structure of block 4 is respectively as shown in Fig. 2~Fig. 5, and each module is respectively by a bottom panel 9, several side panels 10 composition, the bottom of at It is disposed with bottom surface cooling water channel 12 on panel 9, side cooling water channel 13 is disposed on side panel 10, and in side cooling water channel Several side panel trepannings 11 are arranged in 13 upper and lower parts, for the connection between module.

Connection between each adjacent block is as shown in fig. 6, there are one the first insulation boards for setting between each two module 16, for the insulation and sealing between module.Coupling bolt 19 passes through side panel trepanning 11, and in coupling bolt 19 and side panel Insulation sleeve 17 is set between trepanning 11, and in second insulation board 18 that is provided at both ends with of coupling bolt 19, recycle nut 20 and Elastic washer 21 is locked.It is played between each metal parts absolutely by the first insulation board 16, insulation sleeve 17 and the second insulation board 18 The effect of edge and sealing.

In the first bell center module 1, the second bell center module 2, the first bell edge module 3 and the second bell edge Module 4 is equipped with bottom surface cooling water channel 12 and side cooling water channel 13.Bottom surface cooling water channel 12 is evenly arranged on bottom panel 9, Section is L-shaped, is curved with steel plate, the bottom surface of internal water flowing cooling furnace cover module.Laterally plate 10 is surround side cooling water channel 13 The circle arrangement of bottom panel 9 one, section is U-shaped, is completed with steel plate, the side of internal water flowing cooling furnace cover module.Bottom surface cooling water channel 12 and side cooling water channel 13 by 22 unicom of vertical water channel, cooling water is entered by water inlet 14, and water outlet 15 comes out.According to every The heat exchange amount of a module is different, and cooling water channel length is different, it is ensured that and bell heat exchange demand, each cooling water channel temperature rise equilibrium, and No more than 10 DEG C.

Operation principle：

Bell is located at the top of mineral hot furnace furnace shell, and airtight and watertight padding is set between bell and furnace shell, makes inside furnace shell in sealing Environment.According to mine heat furnace smelting technological requirement, the raw material of smelting is entered by 13 blanking holes 6 on bell in burner hearth Portion, three electrode holes 5 that each of three electrodes are each passed through on bell enter burner hearth and provide the energy to smelt, and the furnace gas for smelting generation is logical It crosses the exhaust smoke hole 7 being arranged on bell to be collected for UTILIZATION OF VESIDUAL HEAT IN, in order to stablize the pressure in burner hearth, four is equipped on bell A pressure release valve opening 8 is connected with pressure relief device.

The utility model is other than meeting the basic function of above-mentioned bell, for the working environment and feature of bell, into Optimization innovative design is gone.Mineral hot furnace is in smelt production, and in-furnace temperature is high, and is unevenly distributed, since electrode is located at In the middle part of furnace body, therefore middle portion temperature is more than 1000 DEG C, and in furnace body edge, about 700 DEG C of temperature.In order to make furnace shell good cooling results And it is balanced, it is respectively equipped with two-way in the first bell center module 1 and the second bell center module 2 of the high-temperature region in the middle part of bell Cooling water, i.e. two water inlets 14 and two water outlets 15, two path water is arranged symmetrically in module, is not connected between each other, i.e., Heat exchange area is smaller, reduces total heat exchange amount, while cooling water channel is shorter, and resistance damage is smaller, and heat exchange efficiency is high.The of bell edge Cooling water all the way, i.e. a water inlet 14 and a water outlet are respectively provided in one bell edge module 3 and the second bell edge module 4 Mouth 15, since edge temperature is relatively low, unit heat exchange amount is smaller, and cooling water channel suitably lengthens, and increases heat exchange area, makes coolant water temperature Liter is suitable per the warm liter of road water with bicycle middle module, and energy utilization rate can be improved, and reduces equipment operation maintenance cost.

Above is only the preferred embodiment of the utility model, cannot limit the power of the utility model with this certainly Sharp range, therefore equivalence changes made according to the patent scope of the utility model, still belong to the scope of protection of the utility model.

Claims (8)

1. a kind of closed mineral hot furnace water cooled cover, which is characterized in that including bell center module group and bell edge module group, Bell center module group is set to the inner ring of bell edge module group, is all provided in bell center module group and bell edge module group There are multiple cooling water channels, cooling of the number than being distributed in bell edge module for the cooling water channel being distributed in bell center module The number of water channel is more, and each cooling water channel is mutual indepedent；Bell center module group is equipped with multiple electrodes hole, the week of each electrode hole To multiple blanking holes are distributed with, multiple exhaust smoke holes and pressure release valve opening are circumferentially staggeredly distributed in bell edge module group.

2. closed mineral hot furnace water cooled cover according to claim 1, which is characterized in that bell center module group includes more A bell center module mutually spliced, multiple bell center modules are circumferentially uniformly distributed with the water cooled cover center；Stove Lid edge portion module group includes multiple bell edge modules mutually spliced, and multiple bell edge modules are in the water cooled cover The heart is circumferentially uniformly distributed.

3. closed mineral hot furnace water cooled cover according to claim 2, which is characterized in that each bell center module and every A bell edge module includes bottom panel and side panel, and side panel is set on bottom panel, is set in each bell center module There are at least two cooling water channels, is equipped at least one cooling water channel in each bell edge module, cooling water channel includes that bottom surface is cold But water channel and side cooling water channel, bottom surface cooling water channel are set on bottom panel, and side cooling water channel is set on side panel, bottom Vertical water channel is connected between face cooling water channel and side cooling water channel, bottom surface cooling water channel is cooled down by vertical water channel and side Water channel unicom.

4. closed mineral hot furnace water cooled cover according to claim 3, which is characterized in that the section of bottom surface cooling water channel is The section of L-shaped, side cooling water channel is U-shaped.

5. closed mineral hot furnace water cooled cover according to claim 1, which is characterized in that be equipped on each cooling water channel One water inlet and water outlet.

6. closed mineral hot furnace water cooled cover according to claim 2, which is characterized in that bell center module includes first Bell center module and the second bell center module, the first bell center module and the second bell center module are symmetrical arranged；

Bell edge module includes 1 the first bell edge module and 2 the second bell edge modules, 2 the second bell edge Module is set to the both sides of 1 the first bell edge module；

Every 1 the first bell edge module, 1 the first bell center module and 1 the second bell center module annular splicing, shape At an electrode hole, the second bell edge module is equipped with exhaust smoke hole or pressure release valve opening.

7. the closed mineral hot furnace water cooled cover according to any one of claim 2~6, which is characterized in that each module Between mutually spliced by attachment bolt.

8. the closed mineral hot furnace water cooled cover according to any one of claim 2~6, which is characterized in that each module Between be equipped with the first insulation board, insulation sleeve is arranged on attachment bolt, the second insulation board is equipped with below attachment bolt.