CN204125366U - A kind of production unit preparing granulated wool - Google Patents

Abstract

The utility model discloses a kind of production unit preparing granulated wool, aim to provide a kind of residual heat resources that can not only make full use of in blast furnace hot molten slag, energy-conserving and environment-protective; And Melt molten in skull melting furnace evenly, vitrifying degree is high, effectively can improve the fibroblast rate of mineral wool and the production unit preparing granulated wool of quality.It comprises gets slag runner for water conservancy diversion blast furnace hot molten slag, skull melting furnace and whizzer, skull melting furnace comprises feed tank successively, melting pool and material road, described feed tank top is provided with slag influx and homophony material charging opening, bottom described feed tank with bottom melting pool between be connected by the first flow liquid passage, the one end in described material road is connected with melting pool, the other end is closed, and the bottom in material road is provided with discharge port.

Description

A kind of production unit preparing granulated wool

Technical field

The utility model relates to production field of mineral wool, is specifically related to a kind of blast furnace hot molten slag that utilizes to prepare the production unit of granulated wool.

Background technology

Mineral wool utilizes industrial waste slag (blast-furnace slag etc.) to be main raw material, slag through fusing, modified after qualified melt (1400 ~ 1500 degree) importing whizzer in, and dropped on Centrifugal rolling on the surface, thus got rid of and made mineral wool fibre under the effect of the centrifugal force produced at high speed centrifugation roller; Coordinate the high velocity air of the ejection of the vane in whizzer mineral wool fibre to be blown in cotton collecting machine (high velocity air of vane ejection at Centrifugal rolling axially, along Centrifugal rolling surface flow at high speed) simultaneously.Mineral wool fibre in cotton collecting machine is gathered on cotton collecting machine guipure and forms mineral wool felt under negative pressure wind suction function.Mineral wool have light weight, thermal conductivity little, do not burn, the feature such as mothproof, inexpensive, corrosion-resistant, chemical stability is good, sound absorbing capabilities is good, have a large amount of application in thus, sound absorption adiabatic in the filling of buildings, sound insulation and various heat power equipment are stuffed heat insulated etc.

Mineral wool traditional manufacturing technique is cupola furnace technique.The working process of cupola furnace is: first load a certain amount of coal as bed coke in stove, its height is generally more than one meter.After igniting, bed coke is added to specified altitude, from air port to the end face of bed coke be bed coke height.Then by the melting rate of stove, the Wingdale prepared, metal charge and coke charge are added from charging opening in order in batches.Furnace charge end face edge under charging opening is kept in whole blow-on process.Blast air in stove through air port with bed coke generation combustion reactions, the high-temperature furnace gas of generation upwards flows, and to furnace charge heating, and first metal charge on bed coke end face is melted.Iron after fusing drops in and drops in the process of cupola well, and heated further by high-temperature furnace gas and red-hot coke, it is overheated that this process is called.Burning along with bed coke is become estranged the fusing of metal charge, and the bed of material declines gradually.Often criticize load melting after, fuel is supplemented by additional coke charge, and bed coke height is remained unchanged substantially, and whole melting process is carried out continuously.Wingdale in furnace charge resolves into lime and carbonic acid gas under the effect of high-temperature furnace gas.Lime is basic oxide, its can and coke in ash content and acidic substance such as impurity, metal oxide in furnace charge be combined into the lower slag of fusing point.The slag of fusing also drops to cupola well, and floats on molten iron.In cupola furnace, carry out the burning of bed coke, the transmission of heat and metallurgical reaction 3 significant process simultaneously.

Produce one ton of mineral wool product in the preparation process of tradition cupola furnace technique on average to need to consume the energy about 550 kilograms of standard coals (comprising Jiao, electricity etc.).Energy consumption cost accounts for more than 30% of factory cost, causes the selling price of mineral wool product can not to be in any more, generally all more than 2500-3200 yuan/ton, becomes mineral wool product and is difficult to enter one of bottleneck problem that construction market gives prominence to the most.It is reduce its energy consumption that wish reduces one of key of the selling price of mineral wool product.Although energy-conservation object also can be reached, the limited extent of consumption reduction by adopting some new technologies (as heating air-supply, oxygen-enriched blasting etc.) in traditional technology.

And blast furnace hot molten slag itself has very high temperature (1400-1600 DEG C), its average heat content is about 1670MJ/t, belongs to the residual heat resources of high-quality, has very high recovery value.Because blast furnace slag is had many uses, therefore the recovery principle of slag energy not only will reclaim its residual heat resources, and the recycling of slag will be convenient to, while making full use of waste residue sensible heat, produce mineral wool, cinder microcrystalline glass etc. and there is building material product compared with high added value; But at present, domestic and international blast furnace slag is main mainly with water quenching, and heat cannot be recycled.Therefore, adopt blast furnace hot molten slag directly to prepare mineral wool and be conducive to solving respective Problems existing in above-mentioned technical field, achieve the organic unity of the energy-saving and cost-reducing and blast furnace hot molten slag heat recycling in mineral wool preparation process, taking full advantage of the heat of blast furnace hot molten slag, is one of hot spot technology of current research.

On the other hand, whizzer is also the key equipment in mineral wool production process, it is the important factor determining wool production and quality, comparatively ripe in current mineral wool production process, advanced whizzer is four roller whizzers, its Centrifugal rolling is four, comprises the Centrifugal rolling distributed successively, No. two Centrifugal rollings, No. three Centrifugal rollings and No. four Centrifugal rollings from top to bottom.Arranging vane outside each Centrifugal rolling, being blown into getting rid of by high speed centrifugation roller the mineral wool fibre made in cotton collecting machine.The outside surface of the Centrifugal rolling of the current whizzer for the production of mineral wool is smooth arc surface, outside surface due to Centrifugal rolling is smooth arc surface, after on the outside surface that melt drops on Centrifugal rolling, melt is positioned at Centrifugal rolling on the surface, and the sticking power between melt and the outside surface of Centrifugal rolling is not good, this makes the part melt be attached on Centrifugal rolling surface easily directly be blown off by the high velocity air that vane sprays, and will cool fast after being separated with Centrifugal rolling by the melt blown off, sclerosis forms slag ball, and be got rid of and make mineral wool fibre under the centrifugal action that cannot produce at high speed centrifugation roller, thus the fibroblast rate of whizzer is caused to reduce (the fibroblast rate of current whizzer is usually between 60% to 70%).The more important thing is, outside surface due to Centrifugal rolling is smooth arc surface, this not only makes the sticking power between melt and the outside surface of Centrifugal rolling not good, and the melt be attached on Centrifugal rolling surface will join together, thus under the centrifugal action of high speed centrifugation roller generation, the melt be attached on Centrifugal rolling surface is easily thrown out of, and the melt granules be thrown out of is bigger than normal, homogeneity is not good, the mineral wool fibre causing Centrifugal rolling to get rid of to obtain is thick and short, and (Fibre diameter is large, staple length is short, the mean diameter of the mineral wool fibre that current whizzer obtains is usually below 9 microns), affect mineral wool quality.

Such as, China Patent Publication No. CN103787574A, publication date on May 14th, 2014, the name that utility model is created is called a kind of associated mode four roller whizzer produced for rock wool, comprises four Centrifugal rollings, motor and glue-spraying devices.The outside surface of the Centrifugal rolling of this application case is similarly smooth arc surface, and it exists above-mentioned deficiency equally.

Such as, China Patent Publication No. CN203602500U, publication date on May 21st, 2014, the name that utility model is created is called a kind of four roller whizzers produced for rock wool, comprises melt flow stream outlet, a Centrifugal rolling, No. two Centrifugal rollings, No. three Centrifugal rollings, No. four Centrifugal rollings, vane and center glue-spraying devices.The outside surface of the Centrifugal rolling of this application case is similarly smooth arc surface, and it exists above-mentioned deficiency equally.

Utility model content

First object of the present utility model is to overcome deficiency of the prior art, and provide a kind of production unit preparing granulated wool, it can not only make full use of the residual heat resources in blast furnace hot molten slag, energy-conserving and environment-protective; And Melt molten in skull melting furnace evenly, vitrifying degree is high, effectively can improve fibroblast rate and the quality of mineral wool, improve wool production.

The utility model another object on the first object basis is lower in order to overcome the fibroblast rate preparing the whizzer of mineral wool of the prior art, and obtained mineral wool fibre tubbiness, affect the problem of mineral wool quality, a kind of fibroblast rate that can not only improve whizzer is provided, and obtained mineral wool fibre is elongated, effectively can improve the quality of mineral wool and the production unit preparing granulated wool of performance.

The technical solution of the utility model is:

A kind of production unit preparing granulated wool, comprise and get slag runner for water conservancy diversion blast furnace hot molten slag, skull melting furnace and whizzer, described skull melting furnace comprises feed tank successively, melting pool and material road, and described feed tank top is provided with slag influx and homophony material charging opening, bottom described feed tank with bottom melting pool between be connected by the first flow liquid passage, the one end in described material road is connected with melting pool, and the other end is closed, and the bottom in material road is provided with discharge port; Described first flow liquid passage place is provided with the first flow control flap arrangement of the flow for controlling the first flow liquid passage; Described material road place is provided with the material road flow control flap arrangement for controlling the flow of expecting road, and material road flow control flap arrangement is between melting pool and discharge port; The described discharge end getting slag runner stretches in skull melting furnace by skull melting furnace feeding mouth, gets slag runner place and is provided with hot molten slag capture device, and this hot molten slag capture device comprises the intercepting flashboard being plugged in and getting in slag runner; Described whizzer comprises whizzer shell, and be arranged on the melt feeding mouth of whizzer cover top portion and be arranged in whizzer shell, be positioned at Centrifugal rolling below melt feeding mouth, the outside surface of described Centrifugal rolling is provided with the spiral slot around Centrifugal rolling.

When skull melting furnace needs to introduce blast furnace hot molten slag: the intercepting flashboard got in slag runner is mentioned; Thus make blast furnace hot molten slag by getting in slag runner and feed chute introducing skull melting furnace; When skull melting furnace does not need to introduce blast furnace hot molten slag: intercepting flashboard is inserted and gets in slag runner, close and get slag runner.While blast furnace hot molten slag flows into feed tank, modified material is entered in feed tank by modified material charging opening, makes modified material be blended in blast furnace hot molten slag uniformly; Then, melt (namely mixing the blast furnace hot molten slag of modified material) enters melting pool by the first flow liquid passage, makes the further clarification and homogenization of melt, promotes its vitrified formation, obtains good, uniform melt; Finally, melt is flowed out by the discharge port of expecting, it is cotton that supply whizzer carries out system.Blast furnace hot molten slag (1400-1600 DEG C) is directly introduced in feed tank by slag influx by this programme skull melting furnace, make full use of the heat of blast furnace hot molten slag itself, and coordinate modified material reduce slag fusing point, its high temperature viscosity and high temperature resistance are reduced, the clarification and homogenization process of strengthened slagging, promote its vitrified formation, be conducive to realizing the smooth fusing of melt needed for mineral wool, evenly, improve the fibroblast rate of mineral wool, improve wool production.

On the other hand, because the Centrifugal rolling in this programme is provided with the spiral slot around Centrifugal rolling on the surface; When melt is flowed out by discharge port, and after flowing into whizzer by melt feeding mouth, the melt dropped on Centrifugal rolling outside surface will be accommodated in spiral slot, and extend along spiral slot, be attached on spiral groove surface, thus effectively increase the contact area on melt and Centrifugal rolling surface, improve the sticking power between melt and the outside surface of Centrifugal rolling, and melt is accommodated in spiral slot; The melt be attached on Centrifugal rolling surface so just can be effectively avoided to be blown off by the high velocity air that vane sprays, form slag ball; Thus effectively can improve the melt be attached on Centrifugal rolling surface directly directly to be blown off by the high velocity air that vane sprays, the problem form slag ball, causing the fibroblast rate of whizzer to reduce, effectively improve the fibroblast rate of whizzer.In actual production process, the fibroblast rate of whizzer of the present invention can reach more than 85%.

The more important thing is, after on the outside surface that melt drops on Centrifugal rolling, melt is accommodated in spiral slot, and extends along spiral slot, be attached on spiral groove surface, so not only effectively improve the sticking power between melt and the outside surface of Centrifugal rolling, and make to be attached to melt on the outside surface of Centrifugal rolling and be separated into some elongated strips along spiral slot, and each other comparatively independently melt (be separated into some elongated strips by spiral slot, and mutual comparatively independently melt), like this under the centrifugal action of high speed centrifugation roller generation, the melt granules be thrown out of is tiny, homogeneity is good, thus the fiber making Centrifugal rolling get rid of to obtain is elongated, and (Fibre diameter is little, staple length is long), evenly, the quality of effective raising mineral wool and performance.

As preferably, spiral slot is multi-head spiral groove, and this multi-head spiral groove is made up of first and second two spiral slots be parallel to each other, and the first spiral fluted width of rebate is greater than the second spiral fluted width of rebate.

After on the outside surface that melt drops on Centrifugal rolling, melt will be accommodated in first and second spiral slot, and extend along first and second spiral slot, be attached on first and second spiral groove surface; And be greater than the second spiral fluted width of rebate due to the first spiral fluted width of rebate of multi-head spiral groove in this programme, thus make the melt that is contained in first and second spiral slot different from the sticking power on Centrifugal rolling surface, spiral fluted width of rebate is larger, the sticking power being then in the melt at spiral fluted notch place is less, more easily be centrifuged roller to throw away, and the melt granules be thrown out of is also corresponding larger, the diameter of obtained fiber is also larger; Thus, the diameter throwing away obtained fiber by the first spiral slot in this programme is greater than the diameter that the second spiral slot throws away obtained fiber, can obtain like this and be mixed uniformly by the fiber of two kinds of different string diameters, formed mineral wool.The fiber that in this mineral wool, string diameter is larger has stronger toughness, elasticity and restorability, ensures that mineral wool has good intensity, elasticity and restorability; The tiny fiber of string diameter is then wrapped on the larger fiber of string diameter uniformly, the tiny fiber of string diameter has excellent flexibility and density, thus while making mineral wool have good intensity, elasticity and restorability, mineral wool is also made to have good snappiness, density, hole complicacy and voidage; Various performances, the quality of effective raising mineral wool.

As preferably, slag influx is arranged on feed tank side surface upper part, and slag is flow in feed tank by the discharge end getting slag runner, and the track flowing into the slag in feed tank by the discharge end getting slag runner is parabolic path; Described homophony material charging opening is arranged on feed tank end face, and the drop point being entered the modified material of feed tank by homophony material charging opening is positioned at and is flow on the parabolic path of the slag of feed tank by the discharge end getting slag runner.

The drop point entering the modified material of feed tank due to homophony material charging opening is positioned at and flow on the parabolic path of the slag of feed tank by the discharge end getting slag runner, can effectively avoid so modified material a large amount of float on high-temperature liquid state slag surface, and slag is mixed with the Quick uniform of modified material, be conducive to promoting its vitrified formation, evenly, improving fibroblast rate and the quality of mineral wool.

As preferably, in described intercepting flashboard, be respectively equipped with cooling-water duct, and intercepting flashboard end face is provided with the water-in and water outlet that communicate with cooling-water duct; Described hot molten slag capture device also comprises frame, Connection Block, is rotatably arranged on the vertical union lever on Connection Block, is arranged in frame for being elevated the lifting executive device of Connection Block and being arranged in frame for rotating the flashboard slewing apparatus of intercepting flashboard; The frame of described hot molten slag capture device is arranged on gets slag runner side, and the Connection Block of hot molten slag capture device and vertical union lever are positioned to be got above slag runner, and the lower end of this vertical union lever is toward downward-extension, and is fixed on intercepting flashboard top; Described Connection Block comprises upper junction plate, is positioned at the lower connecting plate below upper junction plate and connects the web member of upper and lower web plate; Described lifting executive device comprises and is arranged on vertical cylinder in frame or vertical oil cylinder, the guide rod being arranged on the vertical guide pin bushing in frame and being arranged in vertical guide pin bushing, lower end of the guide rod is connected with upper junction plate, the piston rod of described vertical cylinder or vertically oil cylinder down stretches out, and is fixed on upper junction plate; Connecting through hole is provided with in the middle part of described lower connecting plate, and this connecting through hole internal fixtion be provided with axle sleeve, described vertical union lever is cylindric, and the upper end of vertical union lever up extends, and through axle sleeve, and vertically union lever upper end, between upper and lower web plate, be provided with positive stop; Described flashboard slewing apparatus comprises the adapter sleeve be set on vertical union lever, the oscillating cylinder being fixedly installed on the fork on adapter sleeve outer side and being arranged between frame and fork, described vertical union lever outer side is provided with the vertical stopper slot extended along vertical union lever, adapter sleeve medial surface is provided with the spacing block set suitable with vertical stopper slot, the cylinder ends of described oscillating cylinder is hinged in frame, and the piston rod end of oscillating cylinder is hinged on fork.

Because blast furnace hot molten slag has very high temperature (1400 ~ 1600 DEG C), be respectively equipped with cooling-water duct in the intercepting flashboard of thus this programme, cooled by water coolant, extend flashboard work-ing life; But so intercepting flashboard will be in cold conditions (relative to blast furnace hot molten slag), and in blast furnace hot molten slag in blast furnace residue channel, there is a certain amount of molten iron; Because intercepting flashboard is in cold conditions, and between flashboard and slag runner surface, there is gap (because slag runner is inevitably existed gap by blast furnace hot molten slag corrosion etc. between reason flashboard and slag runner), this makes, and the slag melts such as the molten iron between infiltration flashboard and slag runner surface are easily cooled to be solidified, and then the slag melts such as molten iron cooled between flashboard and blast furnace residue channel surface are sticked together, cause intercepting flashboard to be difficult to mention by getting in slag runner; Failure when this not only causes intercepting blast furnace hot molten slag; But also high-temperature slag can be caused to overflow slag runner, destroy peripheral equipment, even surrounding work personnel are damaged;

On hot molten slag capture device, flashboard slewing apparatus is all provided with in order to solve above-mentioned not enough this programme; Due to the setting of flashboard slewing apparatus, when intercepting flashboard needs to mention in by slag runner, first drive intercepting flashboard around the rotating shaft rotation back and forth of vertical union lever by flashboard slewing apparatus, thus intercepting flashboard is loosened, avoid being sticked together between flashboard and slag runner surface; Thus ensure that flashboard can be mentioned by slag runner smoothly.

Further, when vertical cylinder or vertical oil cylinder drive Connection Block descending, vertical union lever and intercepting flashboard are then descending with Connection Block under Gravitative Loads, insert and get in slag runner, and when flashboard inserts the bottom of trench of slag runner, after vertical cylinder or vertically oil cylinder stopping are descending; Because positive stop is between upper and lower web plate, and between positive stop and upper junction plate, also tool is at regular intervals, and upper junction plate can not be pressed on positive stop, and flashboard can not be pressed in slag runner by so vertical cylinder or vertically oil cylinder; Thus when flashboard need by get mention in slag runner time, can first drive intercepting flashboard around the rotating shaft rotation back and forth of vertical union lever smoothly by flashboard slewing apparatus, make flashboard loosen; And can not because of the effect of vertical cylinder or vertical oil cylinder make flashboard tightly be pressed in slag runner, cause flashboard slewing apparatus cannot drive flashboard rotation, flashboard slewing apparatus lost efficacy.

As preferably, the side surface upper part of feed tank, be positioned at and below slag influx, be provided with on feed tank liquid level line under liquid level line and feed tank, and the melt liquid level in feed tank is on feed tank under liquid level line and feed tank between liquid level line, the side of described feed tank is provided with some feed tank sides intercalative electrode, the bottom surface of feed tank is provided with some feed tank vertical-insert electrodes, and each feed tank side intercalative electrode and feed tank vertical-insert electrode are all positioned at the below of liquid level line under feed tank; The medial surface top of described melting pool is provided with melting pool liquid level line, and melting pool liquid level line is positioned under feed tank below liquid level line, and the melt liquid level in described melting pool is positioned at below melting pool liquid level line, and the side of described melting pool is provided with some melting pool sides intercalative electrode; Each melting pool side intercalative electrode is positioned at the below of melting pool liquid level line; Described material road is positioned at above melting pool bottom surface, and the melt liquid level in material road is positioned at below melting pool liquid level line; Be provided with side, some material roads intercalative electrode in the upper space in described material road, material side, road plug-in very stannic oxide electrode, material side, road intercalative electrode is positioned at the top of melting pool liquid level line, and the two ends of side, Ge Liao road intercalative electrode are all positioned at outside material road; The end face of described material road blind end is provided with flash mouth, and this flash mouth is positioned at above material bottom surface, road, and the bottom surface of flash mouth is positioned at the below of material side, road intercalative electrode.

In order to make, the melt in feed tank and melting pool is clarified, homogenizing, improves the fibroblast rate of mineral wool, the melt temperature higher (1500 degrees centigrade) in processing requirement feed tank and melting pool, and in feed tank and melting pool, the melt temperature at each position is even; Thus this programme arranges electrode below the melt liquid level of feed tank and melting pool, utilize high temperature resistant electrode directly in melt is heated, ensure the requirement of the melt temperature in feed tank and melting pool;

And the fibroblast requirement in order to make the melt viscosity flowed out by discharge port meet whizzer, the temperature of the melt flowed out by the discharge port in material road can not be too high (at about 1400 degree, temperature is too high, causes the viscosity of melt on the low side, temperature is too low, causes the viscosity of melt higher, and the higher or on the low side fibroblast that all can not meet four roller supercentrifuges of viscosity requires); Thus in order to the melt temperature requirement in satisfied material road, the electrode in material road is arranged on the top of the melt liquid level in material road by this programme, and avoid the melt in electrode direct heating material road, the melt temperature in Shi Liao road is higher; But this is very easily oxidized under the well-oxygenated environment of high temperature due to common electrode materials, and the electrode in expecting needs the top (being arranged in air) of the melt liquid level being arranged on material road, and this makes to expect that the electrode in road can not adopt common electrode; Thus this programme arranges stannic oxide electrode on the top in material space, road, is met the requirements by the melt temperature in stannic oxide electrode Lai Shiliao road, and the electrode that simultaneously turn avoid in material road exposes problem oxidized in atmosphere.Further, because tindioxide is volatile in high temperature environments, during in order to avoid expecting the melt liquid level generation fluctuation in road, stannic oxide electrode being immersed in melt, causing tindioxide to volatilize; Thus the utility model arranges flash mouth on the end face of material road blind end, and the bottom surface of flash mouth is positioned at the below of material side, road intercalative electrode; Thus ensure that unnecessary melt will be discharged by flash mouth, avoid melt to cover stannic oxide electrode when expecting that fluctuation occurs the melt liquid level in road.

As preferably, feed tank top is provided with at least a set of whipping appts, this whipping appts comprises the stir shaft being rotatably arranged on feed tank top, be arranged on the rotating driving device for driving stir shaft to rotate on the outer end face of feed tank, at least two are arranged on the agitator arm of stir shaft lower end and are arranged on the stirring ball of agitator arm end, described agitator arm is uniform around stir shaft circumference, and each agitator arm extends obliquely along the radial direction of stir shaft.

As preferably, first flow control flap arrangement comprises the first flow control flashboard of being vertically plugged in the first flow liquid passage place and is located at skull melting furnace top for being elevated the flashboard lifting craspedodrome device of the first flow control flashboard, and described material road flow control flap arrangement comprises and is vertically plugged in material Dao Neiliao road flashboard and is located at skull melting furnace top for being elevated the flashboard lifting craspedodrome device of material road flashboard.

As preferably, feed tank, the sidewall in melting pool and material road and bottom surface from interior to outer successively by inner lining refractory layer, middle level refractory masses and outer refractory layer form; Feed tank, the end face in melting pool and material road is made up of furnace roof fire resisting material layer.

As preferably, spiral fluted rotation direction is consistent with the rotation direction of the Centrifugal rolling at this spiral slot place.Because spiral fluted rotation direction is consistent with the rotation direction of the Centrifugal rolling at this spiral slot place, the melt be contained in Centrifugal rolling rotary course in spiral slot will extend around spiral slot or extend advance; Like this in Centrifugal rolling rotary course, be conducive to making the melt be contained in spiral slot extend around spiral slot or extend, thus be conducive to melt and got rid of and make fiber, improve fibroblast rate and the quality of whizzer.

As preferably, described spiral fluted cross section is all V-shaped, and on described Centrifugal rolling, the cross section that is positioned at the projection between adjacent two spiral slots is triangular in shape; Between described spiral fluted pitch is 0.63 to 2.53 millimeter; Spiral fluted lead angle is between 3.5 to 10.5 degree.

Due on Centrifugal rolling, the cross section that is positioned at the projection between adjacent two spiral slots is triangular in shape, be conducive to like this melt dropped on the outside surface of this programme Centrifugal rolling is accommodated in spiral slot, and extend along spiral slot, be attached on spiral groove surface; And in this programme the setting of spiral fluted pitch and lead angle can ensure that spiral slot can be fine and closely woven be distributed in Centrifugal rolling on the surface, thus on the outside surface making melt drop on this programme Centrifugal rolling after, can be accommodated in spiral slot smoothly, and extend along spiral slot, be attached on spiral groove surface.

The beneficial effects of the utility model are:

One, can not only make full use of the residual heat resources in blast furnace hot molten slag, energy-conserving and environment-protective; And Melt molten in skull melting furnace evenly, vitrifying degree is high, effectively can improve fibroblast rate and the quality of mineral wool, improve wool production.

Its two, the fibroblast rate of whizzer can not only be improved, and obtained mineral wool fibre is elongated, effectively can improve quality and the performance of mineral wool.

Accompanying drawing explanation

Fig. 1 is a kind of a kind of structural representation preparing the production unit of granulated wool of the present utility model.

Fig. 2 is a kind of structural representation of skull melting furnace of the present utility model.

Fig. 3 is a kind of vertical view at melting pool of the present utility model and material road place.

Fig. 4 is a kind of cross-sectional view at A-A place in Fig. 1.

Fig. 5 is a kind of cross-sectional view at B-B place in Fig. 4.

Fig. 6 is a kind of structural representation of whizzer of the present invention.

Fig. 7 is a kind of structural representation of Centrifugal rolling of the present invention.

Fig. 8 is the partial enlarged drawing at C place in Fig. 7.

In figure: feed tank 1, slag influx 11, homophony material charging opening 12, stir shaft 13, agitator arm 14, stirs ball 15, whipping appts 16, liquid level line 17 on feed tank, liquid level line 18 under feed tank, feed tank side intercalative electrode 19, feed tank vertical-insert electrode 110, cooling of electrode water jacket 111; Melting pool 3, melting pool liquid level line 31, melting pool side intercalative electrode 32; Material road 4, material side, road intercalative electrode 41, discharge port 42, discharge port metal sets off 43, discharge port refractory materials 44, flash mouth 45; Whizzer 5, whizzer shell 51, Centrifugal rolling 52, multi-head spiral groove 521, the first spiral slot 521a, the second spiral slot 521b, vane 53; First flow control flap arrangement 61, material road flow control flap arrangement 63; First flow liquid passage is connected 7; Inner lining refractory 91, middle level refractory materials 92, outer refractory 93, furnace roof fire resisting material 94;

Get slag runner 1a; Intercepting flashboard 2a; Cooling-water duct 2a1, frame 3a; Connection Block 4a, upper junction plate 41a, web member 42a, lower connecting plate 43a; Vertical guide pin bushing 5a; Guide rod 6a; Vertical cylinder 7a; Positive stop 8a; Axle sleeve 9a; Vertical union lever 10a; Vertical stopper slot 11a; Fork 12a; Adapter sleeve 13a, spacing block set 13a1; Spacing guide pin bushing 14a; Oscillating cylinder 15a; First preset pieces 16a, the second preset pieces 17a.

Embodiment

Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:

As shown in Figure 1, a kind of production unit preparing granulated wool comprises and gets slag runner 1a, skull melting furnace, whizzer 5, cotton collecting machine and tablets press for water conservancy diversion blast furnace hot molten slag; Wherein cotton collecting machine and tablets press are prior art.

As Fig. 1, as 2, shown in Fig. 3, skull melting furnace comprises feed tank 1 successively, melting pool 3 and material road 4.Bottom feed tank with bottom melting pool between be connected by the first flow liquid passage 7.The one end in material road is connected with melting pool, and the other end is closed.The bottom in material road is provided with discharge port 42.

Feed tank top is provided with slag influx 11 and homophony material charging opening 12.Slag influx is arranged on feed tank side surface upper part.The discharge end getting slag runner stretches in skull melting furnace by skull melting furnace feeding mouth, wherein " gets the discharge end of slag runner " and refer to the outflow port of the blast furnace hot molten slag of getting in slag runner.Slag is flow in feed tank by the discharge end getting slag runner, and the track flowing into the slag in feed tank by the discharge end getting slag runner is parabolic path.Homophony material charging opening is arranged on feed tank end face, and the drop point being entered the modified material of feed tank by homophony material charging opening is positioned at and is flow on the parabolic path of the slag of feed tank by the discharge end getting slag runner.

The side surface upper part of feed tank, be positioned at and below slag influx, be provided with on feed tank liquid level line 18 under liquid level line 17 and feed tank, and the melt liquid level in feed tank is on feed tank under liquid level line and feed tank between liquid level line.The side of feed tank 1 is provided with some feed tank sides intercalative electrode 19, be specifically, the front and rear sides face of feed tank is respectively arranged with the feed tank side intercalative electrode described in four, and four feed tank side intercalative electrodes on front and rear sides face are made up of two upper side intercalative electrodes and two lower side intercalative electrodes respectively, and upper side intercalative electrode is positioned at the top of lower side intercalative electrode.The bottom surface of feed tank is provided with four feed tank vertical-insert electrodes 110.Feed tank side intercalative electrode and feed tank vertical-insert electrode are all positioned at the below of liquid level line under feed tank.On the intercalative electrode of each feed tank side, the position corresponding with feed tank sidewall be arranged with cooling of electrode water jacket 111 respectively, and on each feed tank vertical-insert electrode, the position corresponding with feed tank diapire be also arranged with cooling of electrode water jacket respectively.

Feed tank top is provided with two cover whipping apptss 16.Whipping appts comprises the stir shaft 13 being rotatably arranged on feed tank top, and be arranged on the rotating driving device for driving stir shaft to rotate on the outer end face of feed tank, three are arranged on the agitator arm 14 of stir shaft lower end and are arranged on the stirring ball 15 of agitator arm end.Agitator arm is uniform around stir shaft circumference, and each agitator arm extends obliquely along the radial direction of stir shaft.

The side of melting pool 3 is provided with some melting pool sides intercalative electrode 32, specifically, the front and rear sides side of melting pool is respectively arranged with the melting pool side intercalative electrode described in the six roots of sensation.Melting pool side intercalative electrode is positioned at the below of melting pool liquid level line.On the intercalative electrode of each melting pool side, the position corresponding with melting pool sidewall be also arranged with cooling of electrode water jacket respectively.

Material road 4 is positioned at above melting pool bottom surface.Melt liquid level in material road is positioned at below melting pool liquid level line 31 or with melting pool liquid level line and flushes.The bottom in material road is provided with discharge port 42, and discharge port is near the blind end in material road.Discharge port is circular.Discharge outlet is provided with discharge port metal and sets off 43, and sets off surrounding at discharge port metal and be provided with discharge port refractory materials 44.The end face of material road blind end is provided with flash mouth 45.This flash mouth is positioned at above material bottom surface, road, and the bottom surface of flash mouth is positioned at the below of material side, road intercalative electrode.Seven side, Gen Liao road intercalative electrodes 41 are provided with in the upper space in material road.Material side, road plug-in very stannic oxide electrode.Material side, road intercalative electrode is positioned at above melting pool liquid level line 31.The two ends of side, Ge Liao road intercalative electrode are all positioned at outside material road.A termination cathode power supply in intercalative electrode two ends, side, Ge Liao road, another termination negative power supply.

First flow liquid passage 7 place is provided with the first flow control flap arrangement 61 of the flow for controlling the first flow liquid passage.First flow control flap arrangement comprises the first flow control flashboard of being vertically plugged in the first flow liquid passage and is located at skull melting furnace top for being elevated the flashboard lifting craspedodrome device of the first flow control flashboard.This flashboard lifting craspedodrome device comprises the vertical tooth bar being fixed on the first flow control flashboard top, is arranged on actuating motor and the gear at skull melting furnace top.The upper end of vertical tooth bar up extends, and the rotating shaft of gear is connected with the output shaft of actuating motor, and wheel and rack is meshed.Flashboard lifting craspedodrome device in the present embodiment can also be made up of cylinder or oil cylinder, is elevated the first flow control flashboard by cylinder or oil cylinder.

Material road place is provided with the material road flow control flap arrangement 63 for controlling the flow of expecting road.Material road flow control flap arrangement is between melting pool and discharge port, and material road flow control flap arrangement is near melting pool.Material road flow control flap arrangement comprises vertically being plugged in expects Dao Neiliao road flashboard and is located at skull melting furnace top for being elevated the flashboard lifting craspedodrome device of material road flashboard.This flashboard lifting craspedodrome device comprises the vertical tooth bar being fixed on material flashboard top, road, is arranged on actuating motor and the gear at skull melting furnace top.The upper end of vertical tooth bar up extends, and the rotating shaft of gear is connected with the output shaft of actuating motor, and wheel and rack is meshed.Flashboard lifting craspedodrome device in the present embodiment can also be made up of cylinder or oil cylinder, is elevated material road flashboard by cylinder or oil cylinder.

The furnace wall of the skull melting furnace of the present embodiment and furnace bottom from interior to outer successively by inner lining refractory layer 91, middle level refractory masses 92 and outer refractory layer 93 form, and furnace roof is made up of furnace roof fire resisting material layer 94; Specifically, feed tank, melting pool and the material sidewall in road and bottom surface from interior to outer successively by inner lining refractory layer, middle level refractory masses and outer refractory layer form; Feed tank, the end face in melting pool and material road is made up of furnace roof fire resisting material layer.Inner lining refractory layer is made up of zircon, and middle level refractory masses is made up of zircon corundum, and outer refractory layer is made up of High-Alumina.Furnace roof fire resisting material layer is made up of corundum.

As shown in Figure 1, Figure 4, Figure 5, get slag runner place and be provided with hot molten slag capture device.Hot molten slag capture device comprises frame 3a, second cooling water inlet pipe road, second cooling water outlet pipe road, be plugged in the intercepting flashboard 2a got in slag runner, Connection Block 4a, rotatably be arranged on the vertical union lever 10a on Connection Block, be arranged in frame for being elevated the lifting executive device of Connection Block and being arranged in frame for rotating the flashboard slewing apparatus of intercepting flashboard.The frame of hot molten slag capture device is arranged on gets slag runner side.The Connection Block of hot molten slag capture device and vertical union lever are positioned to be got above slag runner, and the lower end of this vertical union lever is toward downward-extension, and is fixed on intercepting flashboard top.

Intercepting flashboard is vertically arranged.Intercepting flashboard is rectangular.Cooling-water duct 2a1 is provided with in intercepting flashboard.Intercepting flashboard end face is provided with the water-in and water outlet that communicate with its cooling-water duct.The one end in the second cooling water inlet pipe road is connected with the water-in of intercepting flashboard, and has at least section of tubing to be flexible pipe in this second cooling water inlet pipe road.Second one end, cooling water outlet pipe road is connected with intercepting flashboard upper water-out mouth, and also has at least section of tubing to be flexible pipe in this second cooling water outlet pipe road.

Connection Block comprises upper junction plate 41a, is positioned at the lower connecting plate 43a below upper junction plate and connects the web member 42a of upper and lower web plate.Lifting executive device comprises and is arranged on vertical cylinder 7a in frame or vertical oil cylinder, and two are arranged on the vertical guide pin bushing 5a in frame and are separately positioned on the guide rod 6a in two vertical guide pin bushings.Two lower end of the guide rod are connected with upper junction plate.The piston rod of vertical cylinder or vertically oil cylinder down stretches out, and is fixed on upper junction plate.Vertical union lever is cylindric.Vertical union lever is rotatably arranged on Connection Block, specifically, is provided with connecting through hole in the middle part of lower connecting plate, and this connecting through hole internal fixtion be provided with axle sleeve 9a; The upper end of vertical union lever up extends, and through axle sleeve, vertical union lever can rotate relative to axle sleeve.The upper end of vertical union lever, between upper and lower web plate, be provided with positive stop 8a, and positive stop is resisted against on axle sleeve.Vertical union lever is hung on axle sleeve by positive stop.On vertical union lever, be positioned at below adapter sleeve and be also arranged with spacing guide pin bushing 14a, and vertically union lever can rotate relative to spacing guide pin bushing.Spacing guide pin bushing is fixed in frame.

Flashboard slewing apparatus comprises the adapter sleeve 13a be set on vertical union lever, be fixedly installed on the fork 12a on adapter sleeve outer side, be arranged on the oscillating cylinder 15a between frame and fork and be arranged in frame for limiting the first preset pieces 16a and the second preset pieces 17a of the rotational angle of described fork.Vertical union lever outer side is provided with the vertical stopper slot 11a extended along vertical union lever.Adapter sleeve medial surface is provided with the spacing block set 13a1 suitable with vertical stopper slot.The lower end abutment of adapter sleeve is on spacing guide pin bushing.The cylinder ends of oscillating cylinder is hinged in frame, and the piston rod end of oscillating cylinder is hinged on fork.Fork is horizontally disposed with, and fork extends along adapter sleeve radial direction.First preset pieces and the second preset pieces are positioned at the relative both sides of fork.

As shown in Fig. 1, Fig. 6, whizzer 5 is positioned at below the discharge port in material road.Whizzer comprises whizzer shell 51, is arranged on the melt feeding mouth of whizzer cover top portion, is arranged on going out cotton air port and being arranged in whizzer shell, being positioned at Centrifugal rolling 52 below melt feeding mouth on the side of whizzer shell.Whizzer in the present embodiment is four roller whizzers, and it has four Centrifugal rollings.In whizzer shell, be positioned at outside each Centrifugal rolling and be respectively equipped with vane 53, and the air stream outlet of vane is towards going out cotton air port.The high velocity air of vane ejection is along Centrifugal rolling axial flow.In the present embodiment: be provided with diversion trench between the discharge port in material road and melt feeding mouth, the melt that discharge outlet flows out by diversion trench is introduced in whizzer by melt feeding mouth.

As shown in Figure 7, Figure 8, the outside surface (i.e. the cylindrical surface of Centrifugal rolling) of Centrifugal rolling is provided with the spiral slot around Centrifugal rolling, specifically, four Centrifugal rolling outside surfaces in four roller whizzers is respectively equipped with the spiral slot around Centrifugal rolling.Spiral fluted rotation direction is consistent with the rotation direction of the Centrifugal rolling at this spiral slot place, and namely the rotation direction of this Centrifugal rolling on whizzer is for turning clockwise, then the spiral slot on this Centrifugal rolling is left-turn spiral groove; The rotation direction of this Centrifugal rolling on whizzer is for being rotated counterclockwise, then the spiral slot on this Centrifugal rolling is right-hand(ed)screw groove.This spiral slot can be set to single thread groove (namely this spiral slot is made up of a spiral slot); This spiral slot can also be set to multi-head spiral groove (namely this spiral slot is made up of two or more spiral slot).Spiral slot in the present embodiment is multi-head spiral groove 521, and multi-head spiral groove is made up of first and second two spiral slots 521a, 521b, and the first spiral slot 521a and the second spiral slot 521b is parallel to each other.First and second spiral fluted cross section is all V-shaped.On Centrifugal rolling, the cross section that is positioned at the projection between adjacent two spiral slots is triangular in shape.First spiral fluted width of rebate is greater than the second spiral fluted width of rebate.First spiral fluted width of rebate is the twice of the second spiral fluted width of rebate.First spiral fluted groove depth is greater than the second spiral fluted groove depth.First and second spiral fluted groove depth is between 0.2 to 0.6 millimeter.Spiral fluted lead angle is between 3.5 to 10.5 degree.Between spiral fluted pitch is 0.6 to 2.5 millimeter, specifically, first and second spiral fluted pitch is between 0.63 to 2.53 millimeter.In the present embodiment, first and second spiral fluted pitch is 0.63 millimeter or 1.21 millimeters or 1.81 millimeters or 2.53 millimeters.

Of the present utility model a kind of prepare in the specific works process of the production unit of granulated wool as follows:

When skull melting furnace does not need to introduce blast furnace hot molten slag: intercepting flashboard is inserted and gets in slag runner, close and get slag runner; Now, skull melting furnace does not introduce blast furnace hot molten slag, and blast furnace hot molten slag can by other slag runner drainage process.

When skull melting furnace needs to introduce blast furnace hot molten slag:

First, the flashboard slewing apparatus of hot molten slag capture device is stretched out by the piston rod of oscillating cylinder/is shunk, thus drives vertical union lever to rotate by fork, adapter sleeve, spacing block set and vertical stopper slot; Wherein, fork make use of lever principle, increase effectively the shaking moment that adapter sleeve drives vertical union lever, and then guarantees the rotating shaft back and forth rotation of drive intercepting flashboard around vertical union lever, flashboard is loosened, avoids being sticked together between intercepting flashboard and blast furnace residue channel surface;

Then, the intercepting flashboard got in slag runner is mentioned, thus blast furnace hot molten slag is introduced in skull melting furnace by getting slag runner, realize the actual needs according to mineral wool manufacture craft in blast furnace production process, directly online intercepting blast furnace hot molten slag in blast furnace residue channel.In addition, the height can also mentioned according to flow control flashboard controls to get the aperture of slag runner, thus control get slag amount number.Get slag amount number and sectional area (i.e. slag open area) between slag runner bottom surface can be got with flow velocity and measure according to flow control flashboard base, thus the quantifying realizing slag intercepts (first domestic), meets process requirements.

While blast furnace hot molten slag flows into feed tank, modified material is entered in feed tank by homophony material charging opening, makes modified material be blended in blast furnace hot molten slag uniformly; Meanwhile, the time of the maintenance of melt in feed tank is controlled by the first flow control flap arrangement;

Then, the first flow control flashboard of the first flow control flap arrangement rises, and opens the first flow liquid passage; Thus make the melt in feed tank (namely mixing the blast furnace hot molten slag of modified material) flow in melting pool by the first flow liquid passage; Wherein the first flow control flap arrangement is used for the melt liquid level height in controlled melting pond, ensures that the melt liquid level in melting pool is positioned at below melting pool liquid level line; Namely, when the melt liquid level in melting pool is near melting pool liquid level line, the first flow control flap arrangement closes the first flow liquid passage.Melt clarification and homogenization in melting pool further, promote its vitrified formation, obtain good, uniform melt; Meanwhile, the time of the maintenance of melt in melting pool is controlled by material road flow control flap arrangement;

Again then, material road flow control flap arrangement opens material road flashboard, and qualified melt is flowed out by the discharge port of expecting, and is flowed in whizzer by melt feeding mouth.Melt flows into after in whizzer from top to bottom successively through four Centrifugal rollings; Get rid of under the centrifugal force of four Centrifugal rollings and the high velocity air acting in conjunction of vane ejection and make fiber, and under the effect of high velocity air, fiber is blown in cotton collecting machine by the cotton air port that goes out of whizzer, collect this fiber, obtained mineral wool by cotton collecting machine; Then granulation, obtained granulated wool is carried out by tablets press.

Claims (10)

1. prepare the production unit of granulated wool for one kind, comprise and get slag runner for water conservancy diversion blast furnace hot molten slag, skull melting furnace and whizzer, is characterized in that, described skull melting furnace comprises feed tank successively, melting pool and material road, described feed tank top is provided with slag influx and homophony material charging opening, bottom described feed tank with bottom melting pool between be connected by the first flow liquid passage, the one end in described material road is connected with melting pool, the other end is closed, and the bottom in material road is provided with discharge port; Described first flow liquid passage place is provided with the first flow control flap arrangement of the flow for controlling the first flow liquid passage; Described material road place is provided with the material road flow control flap arrangement for controlling the flow of expecting road, and material road flow control flap arrangement is between melting pool and discharge port;

The described discharge end getting slag runner stretches in skull melting furnace by skull melting furnace feeding mouth, gets slag runner place and is provided with hot molten slag capture device, and this hot molten slag capture device comprises the intercepting flashboard being plugged in and getting in slag runner;

Described whizzer comprises whizzer shell, and be arranged on the melt feeding mouth of whizzer cover top portion and be arranged in whizzer shell, be positioned at Centrifugal rolling below melt feeding mouth, the outside surface of described Centrifugal rolling is provided with the spiral slot around Centrifugal rolling.

2. a kind of production unit preparing granulated wool according to claim 1, it is characterized in that, described spiral slot is multi-head spiral groove, and this multi-head spiral groove is made up of first and second two spiral slots be parallel to each other, and the first spiral fluted width of rebate is greater than the second spiral fluted width of rebate.

3. a kind of production unit preparing granulated wool according to claim 1, it is characterized in that, described slag influx is arranged on feed tank side surface upper part, slag is flow in feed tank by the discharge end getting slag runner, and the track flowing into the slag in feed tank by the discharge end getting slag runner is parabolic path; Described homophony material charging opening is arranged on feed tank end face, and the drop point being entered the modified material of feed tank by homophony material charging opening is positioned at and is flow on the parabolic path of the slag of feed tank by the discharge end getting slag runner.

4. a kind of production unit preparing granulated wool according to claim 1, is characterized in that, be respectively equipped with cooling-water duct in described intercepting flashboard, and intercepting flashboard end face is provided with the water-in and water outlet that communicate with cooling-water duct; Described hot molten slag capture device also comprises frame, Connection Block, is rotatably arranged on the vertical union lever on Connection Block, is arranged in frame for being elevated the lifting executive device of Connection Block and being arranged in frame for rotating the flashboard slewing apparatus of intercepting flashboard; The frame of described hot molten slag capture device is arranged on gets slag runner side, and the Connection Block of hot molten slag capture device and vertical union lever are positioned to be got above slag runner, and the lower end of this vertical union lever is toward downward-extension, and is fixed on intercepting flashboard top;

Described Connection Block comprises upper junction plate, is positioned at the lower connecting plate below upper junction plate and connects the web member of upper and lower web plate; Described lifting executive device comprises and is arranged on vertical cylinder in frame or vertical oil cylinder, the guide rod being arranged on the vertical guide pin bushing in frame and being arranged in vertical guide pin bushing, lower end of the guide rod is connected with upper junction plate, the piston rod of described vertical cylinder or vertically oil cylinder down stretches out, and is fixed on upper junction plate; Connecting through hole is provided with in the middle part of described lower connecting plate, and this connecting through hole internal fixtion be provided with axle sleeve, described vertical union lever is cylindric, and the upper end of vertical union lever up extends, and through axle sleeve, and vertically union lever upper end, between upper and lower web plate, be provided with positive stop;

Described flashboard slewing apparatus comprises the adapter sleeve be set on vertical union lever, the oscillating cylinder being fixedly installed on the fork on adapter sleeve outer side and being arranged between frame and fork, described vertical union lever outer side is provided with the vertical stopper slot extended along vertical union lever, adapter sleeve medial surface is provided with the spacing block set suitable with vertical stopper slot, the cylinder ends of described oscillating cylinder is hinged in frame, and the piston rod end of oscillating cylinder is hinged on fork.

5. a kind of production unit preparing granulated wool according to claim 1 or 2 or 3 or 4, it is characterized in that, the side surface upper part of described feed tank, be positioned at and below slag influx, be provided with on feed tank liquid level line under liquid level line and feed tank, and the melt liquid level in feed tank is on feed tank under liquid level line and feed tank between liquid level line, the side of described feed tank is provided with some feed tank sides intercalative electrode, the bottom surface of feed tank is provided with some feed tank vertical-insert electrodes, and each feed tank side intercalative electrode and feed tank vertical-insert electrode are all positioned at the below of liquid level line under feed tank;

The medial surface top of described melting pool is provided with melting pool liquid level line, and melting pool liquid level line is positioned under feed tank below liquid level line, and the melt liquid level in described melting pool is positioned at below melting pool liquid level line, and the side of described melting pool is provided with some melting pool sides intercalative electrode; Each melting pool side intercalative electrode is positioned at the below of melting pool liquid level line;

Described material road is positioned at above melting pool bottom surface, and the melt liquid level in material road is positioned at below melting pool liquid level line; Be provided with side, some material roads intercalative electrode in the upper space in described material road, material side, road plug-in very stannic oxide electrode, material side, road intercalative electrode is positioned at the top of melting pool liquid level line, and the two ends of side, Ge Liao road intercalative electrode are all positioned at outside material road; The end face of described material road blind end is provided with flash mouth, and this flash mouth is positioned at above material bottom surface, road, and the bottom surface of flash mouth is positioned at the below of material side, road intercalative electrode.

6. a kind of production unit preparing granulated wool according to claim 1 or 2 or 3 or 4, it is characterized in that, described feed tank top is provided with at least a set of whipping appts, this whipping appts comprises the stir shaft being rotatably arranged on feed tank top, be arranged on the rotating driving device for driving stir shaft to rotate on the outer end face of feed tank, at least two are arranged on the agitator arm of stir shaft lower end and are arranged on the stirring ball of agitator arm end, described agitator arm is uniform around stir shaft circumference, and each agitator arm extends obliquely along the radial direction of stir shaft.

7. a kind of production unit preparing granulated wool according to claim 1 or 2 or 3 or 4, it is characterized in that, described first flow control flap arrangement comprises the first flow control flashboard of being vertically plugged in the first flow liquid passage place and is located at skull melting furnace top for being elevated the flashboard lifting craspedodrome device of the first flow control flashboard, and described material road flow control flap arrangement comprises and is vertically plugged in material Dao Neiliao road flashboard and is located at skull melting furnace top for being elevated the flashboard lifting craspedodrome device of material road flashboard.

8. a kind of production unit preparing granulated wool according to claim 1 or 2 or 3 or 4, it is characterized in that, described feed tank, melting pool and the material sidewall in road and bottom surface from interior to outer successively by inner lining refractory layer, middle level refractory masses and outer refractory layer form; Feed tank, the end face in melting pool and material road is made up of furnace roof fire resisting material layer.

9. a kind of production unit preparing granulated wool according to claim 1 or 2 or 3 or 4, it is characterized in that, described spiral fluted rotation direction is consistent with the rotation direction of the Centrifugal rolling at this spiral slot place.

10. a kind of production unit preparing granulated wool according to claim 1 or 2 or 3 or 4, it is characterized in that, described spiral fluted cross section is all V-shaped, and on described Centrifugal rolling, the cross section that is positioned at the projection between adjacent two spiral slots is triangular in shape; Between described spiral fluted pitch is 0.63 to 2.53 millimeter; Spiral fluted lead angle is between 3.5 to 10.5 degree.