CN103849697B - Molten slag treatment device and method for direct production of mineral wool or microcrystal product by utilizing molten slag of blast furnace - Google Patents

Abstract

The invention provides a molten slag treatment device and method for direct production of mineral wool or a microcrystal product by utilizing molten slag of a blast furnace. Sensible energy of thermal state molten slag is utilized to the utmost extent, energy source is saved, cost is reduced, a technique comprising steps 1 to 7 is adopted under the condition that the environment nearby the blast furnace is permissive, a technique comprising steps one to ten is adopted under the condition that appropriate safety distance between a wool or microcrystal production workshop and the blast furnace is required; the molten slag treatment device mainly comprises a shunting and slag taking device, a mixing and tempering device, a flow control system, a concurrent heating device and a storing, heating and current control system, wherein the shunting and slag taking device is arranged at a main slag runner, used for discharging slag, of the blast furnace, an iron scrap discharging hole and a molten slag shunting hole are formed in the bottom of the cavity of a slag pot of the shunting and slag taking device, the molten slag flowing out from the molten slag shunting hole flows into a mixing tank of the mixing and tempering device and flows into a homogenizing furnace with a tempering material entering the mixing tank from a tempering hopper, mixing and homogenizing are carried out, and the mixture of the molten slag and the tempering material flows into a discharging tank by virtue of the discharging hole at the bottom of the homogenizing furnace.

Description

The slag processing apparatus of blast furnace slag direct production mineral wool or microcrystalline product and method

Technical field

The present invention relates to hot molten slag to show off one's talent or competence and utilize field, particularly relate to slag processing apparatus and the method for a kind of blast furnace slag direct production mineral wool or microcrystalline product.

Background technology

Blast furnace hot molten slag is the byproduct of iron manufacturing process, at present dry method and wet method are mainly divided into the treatment process of blast furnace slag, dry method just simply by slag water conservancy diversion to slag field, air cooling lentamente, wet method is also called water quenching technology, that the blast furnace slag under high temperature hot melt state is done water spray process, make it cool rapidly and become fine-grannular Water Quenching Slag, as the raw material of cement industry or slag micropowder raw material or mineral wool, the raw material of devitrified glass, as mineral wool, during the raw material of devitrified glass, it experienced by first cooling and reheats the process of fusing, period slag huge heat is in earlier stage wasted, later stage founds lot of energy again, seem not only not environmentally but also not energy-conservation, along with mineral wool, the maturation of devitrified glass production technology, seek the method for blast furnace slag directly cotton processed or direct production devitrified glass one after another, therefore, need slag processing apparatus and the processing method thereof of seeking a kind of blast furnace hot molten slag direct production mineral wool or microcrystalline product.

Summary of the invention

The object of the present invention is to provide slag processing apparatus and the method for a kind of blast furnace slag direct production mineral wool or microcrystalline product, its equipment is directly connected with the main slag runner of tap cinder, complete and get the various functions such as slag, the precipitation of residual iron, flow control, modified, concurrent heating, stirring, homogeneous, maximally utilise showing off one's talent or competence of hot molten slag, not only save energy but also reduce the production cost of mineral wool or microcrystalline product, this equipment does not affect shrend work production.

The object of the present invention is achieved like this: the slag processing apparatus of a kind of blast furnace slag direct production mineral wool or microcrystalline product, mainly comprise a shunting and get slag device, a batch mixing modifying device, a flow control system, a heat patching device, the main slag runner that slag device is arranged at tap cinder is got in shunting, in main slag runner, hot molten slag flows into through entrance slag road to shunt and gets in the slag ladle chamber of slag device, when slag be full of slag ladle chamber and from the overflow of slag ladle chamber time, the slag of overflow flows into shrend slag runner through overflow slag road and carries out shrend operation, bottom the slag ladle chamber that slag device is got in shunting, a residual iron weif orifice is set, weif orifice is controlled by stopper and plug rod mechanism, regularly carry out residual iron to release, exceed suitably highly liquid level place from residual iron weif orifice in the slag ladle chamber that slag device is got in shunting and a slag diffluence pass is set, slag diffluence pass is by stopper and plug rod mechanism flow control, the slag that slag diffluence pass flows out flows in the mixing tank for coating colors of batch mixing modifying device, simultaneously, modified material enters in mixing tank for coating colors from modified hopper and flows into together with slag in homogeneous furnace and stir, homogeneous, discharge port at the bottom of homogeneous furnace flows into blow tank, heat patching device heats the slag stream of mixing tank for coating colors to homogeneous furnace by oxygen blast coal ash or oxygen blast coal gas mode, heat-processed is controlled by the slag stream temperature in blow tank.

Slag device is got in a described shunting, it is primarily of a slag ladle, a residual iron weif orifice stopper, a residual iron weif orifice plug rod mechanism, a slag diffluence pass stopper, a slag diffluence pass plug rod mechanism, a residual iron releasing chute and a slag ladle lid composition, slag ladle is provided with an entrance slag road, an overflow slag road, a residual iron weif orifice, a slag diffluence pass, entrance slag road and overflow slag road are in the symmetric side position of the top same level of slag ladle body, for concave cross section, residual iron weif orifice is arranged at bottom slag ladle chamber, entrance is pyramidal structure, outlet is circular configuration, slag diffluence pass is arranged at and exceeds suitably height liquid level place from residual iron weif orifice, entrance is pyramidal structure, outlet is circular configuration, involved stopper and plug rod mechanism are ripe special mechanism, slag ladle covers and is provided with cover water-chilling plant, residual iron releasing chute is concave cross section, be arranged at below residual iron weif orifice.

A described batch mixing modifying device, it is primarily of a mixing tank for coating colors, a modified hopper, a homogeneous furnace and a blow tank composition, mixing tank for coating colors is concave cross section, being arranged at shunting gets below the slag diffluence pass of slag device, the upper entrance of modified hopper is circular, lower part outlet is rectangle, be conducive to evenly adding modified material, be arranged at the top in mixing tank for coating colors exit, homogeneous furnace is arranged at the below in mixing tank for coating colors exit, for tube structure, upper opening, bottom is provided with discharge port, homogeneous furnace body of heater rotates about the axis, thus the feed liquid after modified is stirred, blow tank is concave cross section, below the discharge port being arranged at homogeneous furnace, modified material is controlled to be delivered to modified hopper by worm conveyor.

A described heat patching device, it heats the slag stream of mixing tank for coating colors to homogeneous furnace by oxygen blast coal ash or oxygen blast coal gas mode, and heat-processed is controlled by the slag stream temperature in blow tank.

A described flow control system, it is primarily of Level meter and stopper control system composition, Level meter detects the liquid level in homogeneous furnace, slag diffluence pass stopper is controlled with stopper control system, make the level being constant in homogeneous furnace, thus the slag stream stability of flow that maintenance is flowed out in homogeneous furnace.

The processing method that the slag processing apparatus of blast furnace slag direct production mineral wool or microcrystalline product is taked, its main technological steps is.

Step 1, slag is got in shunting, the entrance slag road that in the main slag runner of blast furnace, hot molten slag gets slag device through shunting flows in slag ladle chamber, when slag be full of slag ladle chamber and from the overflow of slag ladle chamber time, the slag of overflow flows into shrend slag runner through overflow slag road and carries out shrend operation, residual iron in slag in slag ladle chamber is deposited in slag ladle bottom, by the residual iron weif orifice of bottom slag ladle chamber, regularly carry out residual iron to release, carry out shunting by the slag diffluence pass of in slag ladle chamber and get slag, namely the slag that slag diffluence pass flows out flows in the mixing tank for coating colors of batch mixing modifying device, residual iron is released and is shunted and gets slag by respective stopper and plug rod mechanism control.

Step 2, batch mixing is modified, modified material enters in mixing tank for coating colors from modified hopper and flows into together with slag in homogeneous furnace, mixing tank for coating colors and homogeneous furnace have certain drop, and modified material enters in the process of homogeneous furnace together with slag, obtain preliminary stirring, modified material is melted by high-temperature slag, make the acidity quotient of the slag after batch mixing meet mineral wool to produce or crystallite production requirement, mass percent≤20% of high-temperature slag shared by modified material, online absorption speed configures according to flow control flow.

Step 3, concurrent heating, detect the slag stream temperature in hopper, when slag stream temperature is lower than 1400 DEG C, by oxygen blast coal ash or oxygen blast coal gas mode, the slag stream of mixing tank for coating colors to homogeneous furnace is heated, make the slag stream temperature in blow tank reach mineral wool and produce or crystallite production requirement scope (about 1400 ~ 1550 DEG C).

Step 4, stirs, at the uniform velocity or speed change rotate homogeneous furnace, the material feeding position of homogeneous furnace is constantly changed and makes batch mixing even, the homogeneous furnace of rotation makes the high-temperature slag in it be stirred.

Step 5, homogeneous, the survival 1 ~ 2 hour in homogeneous furnace of the high-temperature slag after batch mixing, namely homogeneous furnace has enough capacity to carry out online homogeneous, homogenizing temperature >=1350 DEG C.

Step 6, flow control, the high-temperature slag flow that during residing different heights liquid level, it flows out in homogeneous furnace is different, change liquid level and namely change flow, therefore control the liquid level of high-temperature slag in homogeneous furnace with slag diffluence pass stopper and slag diffluence pass plug rod mechanism, obtain stable flow.

Step 7, the cotton or crystallite of system is produced, and the high-temperature slag after homogeneous is sent into centrifugal glass wool making machine through blow tank and got rid of to make mineral wool fibre or send into crystallite production unit and make microcrystalline product.

Further, a kind of blast furnace slag direct production mineral wool proposed by the invention or the slag processing apparatus of microcrystalline product, also comprise a storing heating flow control system, it is primarily of a storage tank, a heating chute, a steady-flow tank, a heating unit, a hopper, a slag stopper and a slag plug rod mechanism composition, storage tank upper lateral part is provided with opening for feed, slag head piece is provided with bottom storage tank chamber, the entrance of slag head piece is pyramidal structure, outlet is circular configuration, the entrance of slag head piece coordinates with slag stopper, involved stopper and plug rod mechanism are ripe special mechanism, storage tank top is provided with cover, storage tank slag flows into heating chute from slag head piece, heating chute is arranged at below the slag head piece of storage tank, a steady-flow tank is provided with below heating chute, flow control is carried out for coordinating stopper, steady-flow tank is circular, bottom is provided with slag current stabilization mouth, a hopper is provided with below slag current stabilization mouth, slag flows into hopper from slag current stabilization mouth and then flows to system cotton or crystallite production unit, described heating unit, it heats the slag stream of heating chute to steady-flow tank by oxygen blast coal ash or oxygen blast coal gas mode, or Frequency Induction Heating is carried out to the slag in steady-flow tank, heat-processed is controlled by the slag stream temperature in hopper.

Further, the processing method that a kind of blast furnace slag direct production mineral wool proposed by the invention or the slag processing apparatus of microcrystalline product are taked, its main technological steps can also be.

Step one, slag is got in shunting, the entrance slag road that in the main slag runner of blast furnace, hot molten slag gets slag device through shunting flows in slag ladle chamber, when slag be full of slag ladle chamber and from the overflow of slag ladle chamber time, the slag of overflow flows into shrend slag runner through overflow slag road and carries out shrend operation, residual iron in slag in slag ladle chamber is deposited in slag ladle bottom, by the residual iron weif orifice of bottom slag ladle chamber, regularly carry out residual iron to release, carry out shunting by the slag diffluence pass of in slag ladle chamber and get slag, namely the slag that slag diffluence pass flows out flows in the mixing tank for coating colors of batch mixing modifying device, residual iron is released and is shunted and gets slag by respective stopper and plug rod mechanism control.

Step 2, batch mixing is modified, modified material enters in mixing tank for coating colors from modified hopper and flows into together with slag in homogeneous furnace, mixing tank for coating colors and homogeneous furnace have certain drop, and modified material enters in the process of homogeneous furnace together with slag, obtain preliminary stirring, modified material is melted by high-temperature slag, make the acidity quotient of the slag after batch mixing meet mineral wool to produce or crystallite production requirement, mass percent≤20% of high-temperature slag shared by modified material, online absorption speed configures according to flow control flow.

Step 3, concurrent heating, detects the slag stream temperature in hopper, when slag stream temperature is lower than 1350 DEG C, heats by oxygen blast coal ash or oxygen blast coal gas mode to the slag stream of mixing tank for coating colors to homogeneous furnace, makes the slag stream temperature in blow tank reach 1350 ~ 1450 DEG C.

Step 4, stirs, at the uniform velocity or speed change rotate homogeneous furnace, the material feeding position of homogeneous furnace is constantly changed and makes batch mixing even, the homogeneous furnace of rotation makes the high-temperature slag in it be stirred.

Step 5, get slag flow control, the high-temperature slag flow that during residing different heights liquid level, it flows out in homogeneous furnace is different, change liquid level and namely change flow, therefore the liquid level of high-temperature slag in homogeneous furnace is controlled with slag diffluence pass stopper and slag diffluence pass plug rod mechanism, obtain stable flow, control to get slag speed.

Step 6, transport, the high-temperature slag flowed out from blow tank is collected in transport slag ladle, is transported to the storage tank place of storing heating flow control system with slag car.

Step 7, storing, homogeneous, pour storage tank into the high-temperature slag in transport slag ladle, storage tank has enough capacity to support the discharge of 2 ~ 3 hours, to support continuous seepage, high-temperature slag survival in storage tank carries out online homogeneous, homogenizing temperature >=1300 DEG C in 2 ~ 3 hours.

Step 8, concurrent heating, detect the slag stream temperature in hopper, when slag stream temperature is lower than 1400 DEG C, by oxygen blast coal ash or oxygen blast coal gas mode, the slag stream of heating chute to steady-flow tank is heated, or Frequency Induction Heating is carried out to the slag in steady-flow tank, make the slag stream temperature in hopper reach mineral wool and produce or crystallite production requirement scope (about 1400 ~ 1550 DEG C).

Step 9, flow control, the high-temperature slag flow that during residing different heights liquid level, it flows out in steady-flow tank is different, change liquid level and namely change flow, therefore control the liquid level of high-temperature slag in steady-flow tank with the slag stopper on the storage tank in storing heating flow control system and slag plug rod mechanism, obtain stable flow.

Step 10, the cotton or crystallite of system is produced, and the slag after homogeneous heating is sent into centrifugal glass wool making machine through hopper and got rid of to make mineral wool fibre or send into crystallite production unit and make microcrystalline product.

The slag processing apparatus of a kind of blast furnace slag direct production mineral wool of the present invention or microcrystalline product and method, maximally utilise showing off one's talent or competence of hot molten slag, save the energy, reduce the production cost of mineral wool or microcrystalline product, and do not affect shrend work production, near blast furnace under environment enabled condition, adopt step 1 to the processing method of step 7, under system is cotton or crystallite production plant needs suitable safe distance situation with blast furnace, employing step one is to the processing method of step 10.

Accompanying drawing explanation

Fig. 1 is the schematic top plan view of the slag processing apparatus of a kind of blast furnace slag direct production mineral wool of the present invention or microcrystalline product.

Fig. 2 is the A-A schematic diagram in Fig. 1.

Fig. 3 is the B-B schematic diagram in Fig. 2.

Fig. 4 is the schematic diagram of the storing heating flow control system in the present invention.

Embodiment

Below in conjunction with specific embodiment, further elaboration the present invention, should understand, these embodiments are only not used in for illustration of the present invention and limit the scope of the invention, in addition should understand, after the content of having read the present invention's statement, those skilled in the art can make various changes or modifications the present invention, the change of the acidity quotient of such as mineral wool or microcrystalline product and the change of temperature control scope, modified material and increase viscous modulus requirement etc., these equivalent form of values fall within the application's appended claims limited range equally.

See Fig. 1, Fig. 2, coordinate see Fig. 3, the slag processing apparatus of a kind of blast furnace slag direct production mineral wool of the present invention or microcrystalline product, mainly comprise a shunting and get slag device, a batch mixing modifying device, a flow control system, a heat patching device, the main slag runner that slag device is arranged at tap cinder is got in shunting, hot molten slag in main slag runner 1 flows into shunting through entrance slag road 4-1 and gets in the chamber of slag ladle 4 of slag device, when slag be full of slag ladle 4 chamber and from the chamber of slag ladle 4 during overflow, the slag of overflow flows into shrend slag runner 6 through overflow slag road 4-2 and carries out shrend operation, bottom the chamber that the slag ladle 4 of slag device is got in shunting, a residual iron weif orifice 4-3 is set, residual iron weif orifice 4-3 is controlled by residual iron weif orifice stopper 3 and residual iron weif orifice plug rod mechanism 7, regularly carry out residual iron to release, exceed suitably liquid level 4-6 place highly from the liquid level 4-5 of residual iron weif orifice 4-3 in the chamber that the slag ladle 4 of slag device is got in shunting and a slag diffluence pass 4-4 is set, slag diffluence pass 4-4 is by slag diffluence pass stopper 9 and slag diffluence pass plug rod mechanism 8 flow control, the slag that slag diffluence pass 4-4 flows out flows in the mixing tank for coating colors 10 of batch mixing modifying device, simultaneously, modified material enters in mixing tank for coating colors 10 from modified hopper 11 and flows into together with slag in homogeneous furnace 12 and stir, homogeneous, discharge port 12-3 through the bottom of homogeneous furnace 12 flows into blow tank 13, heat patching device 14 heats the slag stream of mixing tank for coating colors 10 to homogeneous furnace 12 by oxygen blast coal ash or oxygen blast coal gas mode, heat-processed is controlled by the slag stream temperature in blow tank 13.

See Fig. 1, Fig. 2, coordinate see Fig. 3, slag device is got in a shunting in the present invention, it is primarily of a slag ladle 4, a residual iron weif orifice stopper 3, a residual iron weif orifice plug rod mechanism 7, a slag diffluence pass stopper 9, a slag diffluence pass plug rod mechanism 8, a residual iron releasing chute 5 and a slag ladle lid 2 form, slag ladle 4 is provided with an entrance slag road 4-1, an overflow slag road 4-2, a residual iron weif orifice 4-3, a slag diffluence pass 4-4, entrance slag road 4-1 and overflow slag road 4-2 is in the symmetric side position of the top same level of slag ladle 4 body, for concave cross section, residual iron weif orifice 4-3 is arranged at the bottom in the chamber of slag ladle 4, residual iron weif orifice entrance 4-7 is pyramidal structure, outlet is circular configuration, the liquid level 4-5 that slag diffluence pass 4-4 is arranged at from residual iron weif orifice 4-3 exceeds suitable liquid level 4-6 place highly, slag diffluence pass entrance 4-8 is pyramidal structure, outlet is circular configuration, involved stopper and plug rod mechanism are ripe special mechanism, slag ladle lid 2 is provided with cover water-chilling plant, residual iron releasing chute 5 is concave cross section, be arranged at below residual iron weif orifice 4-3, the head 3-1 of residual iron weif orifice the stopper 3 and head 9-1 of slag diffluence pass stopper 9 is sphere.

See Fig. 1, Fig. 2, coordinate see Fig. 3, a batch mixing modifying device in the present invention, it is primarily of a mixing tank for coating colors 10, a modified hopper 11, a homogeneous furnace 12 and a blow tank 13 form, mixing tank for coating colors 10 is concave cross section, being arranged at shunting gets below the slag diffluence pass 4-4 of slag device, the upper entrance 11-2 of modified hopper 11 is circular, lower part outlet 11-1 is rectangle, be conducive to evenly adding modified material, be arranged at the top of mixing tank for coating colors 10 exit 10-1, homogeneous furnace 12 is arranged at the below of mixing tank for coating colors 10 exit 10-1, for tube structure, upper opening, bottom is provided with discharge port 12-3, the body of heater of homogeneous furnace 12 rotates around axis 12-4, thus the feed liquid after modified is stirred, blow tank 13 is concave cross section, below the discharge port 12-3 being arranged at homogeneous furnace 12, modified material is controlled to be delivered to modified hopper 11 by worm conveyor.

See Fig. 2, a heat patching device 14 in the present invention, it heats the slag stream of mixing tank for coating colors 10 to homogeneous furnace 12 by oxygen blast coal ash or oxygen blast coal gas mode, and heat-processed is controlled by the slag stream temperature in blow tank 13.

See Fig. 2, a flow control system in the present invention, it is primarily of Level meter and stopper control system composition, Level meter detects the control liquid level 12-1 of high-temperature slag 12-2 in homogeneous furnace 12, slag diffluence pass stopper 9 is controlled with stopper control system, make the control liquid level 12-1 in homogeneous furnace 12 keep constant, thus keep the slag stream stability of flow of outflow in homogeneous furnace 12.

See Fig. 4, a storing heating flow control system in the present invention, it is primarily of a storage tank 15, a heating chute 18, a steady-flow tank 20, a heating unit 19, a hopper 21, a slag stopper 17 and a slag plug rod mechanism composition, storage tank 15 upper lateral part is provided with opening for feed 15-1, slag head piece 15-2 is provided with bottom the chamber of storage tank 15, the entrance of slag head piece 15-2 is pyramidal structure, outlet is circular configuration, the entrance of slag head piece 15-2 coordinates with slag stopper 17, involved stopper and plug rod mechanism are ripe special mechanism, storage tank 15 top is provided with cover 16, slag in storage tank 15 flows into heating chute 18 from slag head piece 15-2, heating chute 18 is arranged at below the slag head piece 15-2 of storage tank 15, a steady-flow tank 20 is provided with below heating chute 18, flow control is carried out for coordinating slag stopper 17, steady-flow tank 20 is circular, bottom is provided with slag current stabilization mouth 20-3, a hopper 21 is provided with below slag current stabilization mouth 20-3, slag flows into hopper 21 from slag current stabilization mouth 20-3 and then flows to system cotton or crystallite production unit, described heating unit 19, it heats the slag stream of heating chute 18 to steady-flow tank 20 by oxygen blast coal ash or oxygen blast coal gas mode, or Frequency Induction Heating is carried out to the slag in steady-flow tank 20, heat-processed is controlled by the slag stream temperature in hopper 21.

Embodiment 1

The processing method that the slag processing apparatus of blast furnace slag direct production mineral wool is taked, its main technological steps is:

Step 1, slag is got in shunting, see Fig. 1, Fig. 2, Fig. 3, the entrance slag road 4-1 that in the main slag runner 1 of blast furnace, hot molten slag gets slag device through shunting flows in the chamber of slag ladle 4, when slag be full of slag ladle 4 chamber and from the chamber of slag ladle 4 during overflow, the slag of overflow flows into shrend slag runner 6 through overflow slag road 4-2 and carries out shrend operation, residual iron in slag in the chamber of slag ladle 4 is deposited in the bottom of slag ladle 4, by the residual iron weif orifice 4-3 of bottom the chamber of slag ladle 4, regularly carry out residual iron to release, carry out shunting by a slag diffluence pass 4-4 in the chamber of slag ladle 4 and get slag, namely the slag that slag diffluence pass 4-4 flows out flows in the mixing tank for coating colors 10 of batch mixing modifying device, residual iron is released and is shunted and gets slag and control by respective residual iron weif orifice stopper 3 and residual iron weif orifice plug rod mechanism 7 and slag diffluence pass stopper 9 and slag diffluence pass plug rod mechanism 8,

Step 2, batch mixing is modified, see Fig. 2, modified material enters from modified hopper 11 and flows in homogeneous furnace 12 together with slag in mixing tank for coating colors 10, and mixing tank for coating colors 10 and homogeneous furnace 12 have certain drop, modified material enters in the process of homogeneous furnace 12 together with slag, obtain preliminary stirring, modified material is melted by high-temperature slag, makes the acidity quotient of the slag after batch mixing meet mineral wool production requirement, shared by modified material, the mass percent of high-temperature slag is 5%, and online absorption speed configures according to flow control flow;

Step 3, concurrent heating, see Fig. 2, detects that the slag stream temperature in hopper 13 is 1450 DEG C, therefore does not heat in this example;

Step 4, stirs, see Fig. 2, and uniform rotation homogeneous furnace 12, the material feeding position of homogeneous furnace 12 is constantly changed and makes batch mixing even, the homogeneous furnace 12 of rotation makes the high-temperature slag 12-2 in it be stirred;

Step 5, homogeneous, see Fig. 2, the high-temperature slag 12-2 after batch mixing can survival 2 hours in homogeneous furnace 12, and homogenizing temperature is 1450 DEG C;

Step 6, flow control, see Fig. 2, controls the control liquid level 12-1 height of high-temperature slag in homogeneous furnace 12 with slag diffluence pass stopper 9 and slag diffluence pass plug rod mechanism 8, obtains stable flow;

Step 7, system is cotton, and the high-temperature slag 12-2 after homogeneous sends into centrifugal glass wool making machine through blow tank 13 and gets rid of and make mineral wool fibre.

Embodiment 2

The processing method that the slag processing apparatus of blast furnace slag direct production microcrystalline product is taked, its main technological steps can also be:

Step one, slag is got in shunting, see Fig. 1, Fig. 2, Fig. 3, the entrance slag road 4-1 that in the main slag runner 1 of blast furnace, hot molten slag gets slag device through shunting flows in the chamber of slag ladle 4, when slag be full of slag ladle 4 chamber and from the chamber of slag ladle 4 during overflow, the slag of overflow flows into shrend slag runner 6 through overflow slag road 4-2 and carries out shrend operation, residual iron in slag in the chamber of slag ladle 4 is deposited in the bottom of slag ladle 4, by the residual iron weif orifice 4-3 of bottom the chamber of slag ladle 4, regularly carry out residual iron to release, carry out shunting by a slag diffluence pass 4-4 in the chamber of slag ladle 4 and get slag, namely the slag that slag diffluence pass 4-4 flows out flows in the mixing tank for coating colors 10 of batch mixing modifying device, residual iron is released and is shunted and gets slag and control by respective residual iron weif orifice stopper 3 and residual iron weif orifice plug rod mechanism 7 and slag diffluence pass stopper 9 and slag diffluence pass plug rod mechanism 8,

Step 2, batch mixing is modified, see Fig. 2, modified material enters from modified hopper 11 and flows in homogeneous furnace 12 together with slag in mixing tank for coating colors 10, and mixing tank for coating colors 10 and homogeneous furnace 12 have certain drop, modified material enters in the process of homogeneous furnace 12 together with slag, obtain preliminary stirring, modified material is melted by high-temperature slag, makes the acidity quotient of the slag after batch mixing meet crystallite production requirement, shared by modified material, the mass percent of high-temperature slag is 6%, and online absorption speed configures according to flow control flow;

Step 3, concurrent heating, see Fig. 2, detects that the slag stream temperature in hopper 13 is 1400 DEG C, therefore does not heat in this example;

Step 4, stirs, see Fig. 2, and uniform rotation homogeneous furnace 12, the material feeding position of homogeneous furnace 12 is constantly changed and makes batch mixing even, the homogeneous furnace 12 of rotation makes the high-temperature slag 12-2 in it be stirred;

Step 5, gets slag flow control, see Fig. 2, controls the control liquid level 12-1 height of high-temperature slag 12-2 in homogeneous furnace 12, obtain stable flow, control to get slag speed with slag diffluence pass stopper 9 and slag diffluence pass plug rod mechanism 8;

Step 6, transport, the high-temperature slag flowed out from blow tank 13 is collected in transport slag ladle, is transported to storage tank 15 place of storing heating flow control system with slag car;

Step 7, storing, homogeneous, see Fig. 4, high-temperature slag in transport slag ladle is poured into storage tank 15, and storage tank 15 has enough capacity to support the discharge of 2 hours, to support continuous seepage, high-temperature slag survival can carry out online homogeneous in 2 hours in storage tank 15, and homogenizing temperature is 1350 DEG C;

Step 8, concurrent heating, see Fig. 4, detects the slag stream temperature in hopper 21, carries out Frequency Induction Heating, make the slag stream temperature in hopper 21 control at 1450 DEG C to the slag in steady-flow tank 20;

Step 9, flow control, see Fig. 4, is stabilized in the height of flow control liquid level 20-1, obtains stable flow with the slag stopper 17 on the storage tank 15 in storing heating flow control system and the slag plug rod mechanism high-temperature slag 20-2 controlled in steady-flow tank 20;

Step 10, crystallite is produced, and the high-temperature slag 20-2 after homogeneous heating sends into crystallite production unit through hopper 21 and makes microcrystalline product.

Claims (7)

1. the slag processing apparatus of a blast furnace slag direct production mineral wool or microcrystalline product, it is characterized in that: mainly comprise a shunting and get slag device, a batch mixing modifying device, a flow control system, a heat patching device, the main slag runner that slag device is arranged at tap cinder is got in shunting, in main slag runner, hot molten slag flows into through entrance slag road to shunt and gets in the slag ladle chamber of slag device, when slag be full of slag ladle chamber and from the overflow of slag ladle chamber time, the slag of overflow flows into shrend slag runner through overflow slag road and carries out shrend operation, bottom the slag ladle chamber that slag device is got in shunting, a residual iron weif orifice is set, weif orifice is controlled by stopper and plug rod mechanism, regularly carry out residual iron to release, exceed suitably highly liquid level place from residual iron weif orifice in the slag ladle chamber that slag device is got in shunting and a slag diffluence pass is set, slag diffluence pass is by stopper and plug rod mechanism flow control, the slag that slag diffluence pass flows out flows in the mixing tank for coating colors of batch mixing modifying device, modified material enters in mixing tank for coating colors from modified hopper and flows into together with slag in homogeneous furnace and stir, homogeneous, discharge port at the bottom of homogeneous furnace flows into blow tank, heat patching device heats the slag stream of mixing tank for coating colors to homogeneous furnace by oxygen blast coal ash or oxygen blast coal gas mode, heat-processed is controlled by the slag stream temperature in blow tank.

2. the slag processing apparatus of a kind of blast furnace slag direct production mineral wool according to claim 1 or microcrystalline product, it is characterized in that: slag device is got in a described shunting, it is primarily of a slag ladle, a residual iron weif orifice stopper, a residual iron weif orifice plug rod mechanism, a slag diffluence pass stopper, a slag diffluence pass plug rod mechanism, a residual iron releasing chute and a slag ladle lid composition, slag ladle is provided with an entrance slag road, an overflow slag road, a residual iron weif orifice, a slag diffluence pass, entrance slag road and overflow slag road are in the symmetric side position of the top same level of slag ladle body, for concave cross section, residual iron weif orifice is arranged at bottom slag ladle chamber, entrance is pyramidal structure, outlet is circular configuration, slag diffluence pass is arranged at and exceeds suitably height liquid level place from residual iron weif orifice, entrance is pyramidal structure, outlet is circular configuration, involved stopper and plug rod mechanism are ripe special mechanism, slag ladle covers and is provided with cover water-chilling plant, residual iron releasing chute is concave cross section, be arranged at below residual iron weif orifice.

3. the slag processing apparatus of a kind of blast furnace slag direct production mineral wool according to claim 1 or microcrystalline product, it is characterized in that: a described batch mixing modifying device, it is primarily of a mixing tank for coating colors, a modified hopper, a homogeneous furnace and a blow tank composition, mixing tank for coating colors is concave cross section, being arranged at shunting gets below the slag diffluence pass of slag device, the upper entrance of modified hopper is circular, lower part outlet is rectangle, be arranged at the top in mixing tank for coating colors exit, homogeneous furnace is arranged at the below in mixing tank for coating colors exit, for tube structure, upper opening, bottom is provided with discharge port, homogeneous furnace body of heater can rotate about the axis, thus the feed liquid after batch mixing is stirred, blow tank is concave cross section, below the discharge port being arranged at homogeneous furnace, modified material is controlled to be delivered to modified hopper by worm conveyor.

4. the slag processing apparatus of a kind of blast furnace slag direct production mineral wool according to claim 1 or microcrystalline product, it is characterized in that: a described flow control system, it is primarily of Level meter and stopper control system composition, Level meter detects the liquid level in homogeneous furnace, slag diffluence pass stopper is controlled with stopper control system, make the level being constant in homogeneous furnace, thus the slag stream stability of flow that maintenance is flowed out in homogeneous furnace.

5. the processing method taked of the slag processing apparatus of a kind of blast furnace slag direct production mineral wool according to claim 1 or microcrystalline product, is characterized in that: main technological steps is:

Step 1, slag is got in shunting, the entrance slag road that in the main slag runner of blast furnace, hot molten slag gets slag device through shunting flows in slag ladle chamber, when slag be full of slag ladle chamber and from the overflow of slag ladle chamber time, the slag of overflow flows into shrend slag runner through overflow slag road and carries out shrend operation, residual iron in slag in slag ladle chamber is deposited in slag ladle bottom, by the residual iron weif orifice of bottom slag ladle chamber, regularly carry out residual iron to release, carry out shunting by the slag diffluence pass of in slag ladle chamber and get slag, namely the slag that slag diffluence pass flows out flows in the mixing tank for coating colors of batch mixing modifying device, residual iron is released and is shunted and gets slag by respective stopper and plug rod mechanism control,

Step 2, batch mixing is modified, modified material enters in mixing tank for coating colors from modified hopper and flows into together with slag in homogeneous furnace, mixing tank for coating colors and homogeneous furnace have certain drop, modified material enters in the process of homogeneous furnace and obtains one-shot together with slag, thus obtain preliminary stirring, modified material is melted by high-temperature slag, make the acidity quotient of the slag after batch mixing meet mineral wool to produce or crystallite production requirement, mass percent≤20% of high-temperature slag shared by modified material, online absorption speed configures according to flow control flow;

Step 3, concurrent heating, detects the slag stream temperature in hopper, when slag stream temperature is lower than 1400 DEG C, by oxygen blast coal ash or oxygen blast coal gas mode, the slag stream of mixing tank for coating colors to homogeneous furnace is heated, make the slag stream temperature in blow tank reach mineral wool and produce or crystallite production requirement scope;

Step 4, stirs, at the uniform velocity or speed change rotate homogeneous furnace, the material feeding position of homogeneous furnace is constantly changed and makes batch mixing even, the homogeneous furnace of rotation makes the high-temperature slag in it be stirred;

Step 5, homogeneous, the survival 1 ~ 2 hour in homogeneous furnace of the high-temperature slag after batch mixing, namely homogeneous furnace has enough capacity to carry out online homogeneous, homogenizing temperature >=1350 DEG C;

Step 6, flow control, the high-temperature slag flow that during residing different heights liquid level, it flows out in homogeneous furnace is different, change liquid level and namely change flow, therefore control the liquid level of high-temperature slag in homogeneous furnace with slag diffluence pass stopper and slag diffluence pass plug rod mechanism, obtain stable flow;

Step 7, the cotton or crystallite of system is produced, and the high-temperature slag after homogeneous is sent into centrifugal glass wool making machine through blow tank and got rid of to make mineral wool fibre or send into crystallite production unit and make microcrystalline product.

6. the slag processing apparatus of a kind of blast furnace slag direct production mineral wool according to claim 1 or microcrystalline product, it is characterized in that: also comprise a storing heating flow control system, it is primarily of a storage tank, a heating chute, a steady-flow tank, a heating unit, a hopper, a slag stopper and a slag plug rod mechanism composition, storage tank upper lateral part is provided with opening for feed, slag head piece is provided with bottom storage tank chamber, the entrance of slag head piece is pyramidal structure, outlet is circular configuration, the entrance of slag head piece coordinates with slag stopper, involved stopper and plug rod mechanism are ripe special mechanism, storage tank top is provided with cover, storage tank slag flows into heating chute from slag head piece, heating chute is arranged at below the slag head piece of storage tank, a steady-flow tank is provided with below heating chute, flow control is carried out for coordinating stopper, steady-flow tank is circular, bottom is provided with slag current stabilization mouth, a hopper is provided with below slag current stabilization mouth, slag flows into hopper from slag current stabilization mouth and then flows to system cotton or crystallite production unit, described heating unit, it heats the slag stream of heating chute to steady-flow tank by oxygen blast coal ash or oxygen blast coal gas mode, or Frequency Induction Heating is carried out to the slag in steady-flow tank, heat-processed is controlled by the slag stream temperature in hopper.

7. the processing method that a kind of blast furnace slag direct production mineral wool according to claim 1,6 or the slag processing apparatus of microcrystalline product are taked, is characterized in that: main technological steps can also be:

Step one, slag is got in shunting, the entrance slag road that in the main slag runner of blast furnace, hot molten slag gets slag device through shunting flows in slag ladle chamber, when slag be full of slag ladle chamber and from the overflow of slag ladle chamber time, the slag of overflow flows into shrend slag runner through overflow slag road and carries out shrend operation, residual iron in slag in slag ladle chamber is deposited in slag ladle bottom, by the residual iron weif orifice of bottom slag ladle chamber, regularly carry out residual iron to release, carry out shunting by the slag diffluence pass of in slag ladle chamber and get slag, namely the slag that slag diffluence pass flows out flows in the mixing tank for coating colors of batch mixing modifying device, residual iron is released and is shunted and gets slag by respective stopper and plug rod mechanism control,

Step 2, batch mixing is modified, modified material enters in mixing tank for coating colors from modified hopper and flows into together with slag in homogeneous furnace, mixing tank for coating colors and homogeneous furnace have certain drop, and modified material enters in the process of homogeneous furnace together with slag, obtain preliminary stirring, modified material is melted by high-temperature slag, make the acidity quotient of the slag after batch mixing meet mineral wool to produce or crystallite production requirement, mass percent≤20% of high-temperature slag shared by modified material, online absorption speed configures according to flow control flow;

Step 3, concurrent heating, detects the slag stream temperature in hopper, when slag stream temperature is lower than 1350 DEG C, heats by oxygen blast coal ash or oxygen blast coal gas mode to the slag stream of mixing tank for coating colors to homogeneous furnace, makes the slag stream temperature in blow tank reach 1350 ~ 1450 DEG C;

Step 4, stirs, at the uniform velocity or speed change rotate homogeneous furnace, the material feeding position of homogeneous furnace is constantly changed and makes batch mixing even, the homogeneous furnace of rotation makes the high-temperature slag in it be stirred;

Step 5, get slag flow control, the high-temperature slag flow that during residing different heights liquid level, it flows out in homogeneous furnace is different, change liquid level and namely change flow, therefore the liquid level of high-temperature slag in homogeneous furnace is controlled with slag diffluence pass stopper and slag diffluence pass plug rod mechanism, obtain stable flow, control to get slag speed;

Step 6, transport, the high-temperature slag flowed out from blow tank is collected in transport slag ladle, is transported to the storage tank place of storing heating flow control system with slag car;

Step 7, storing, homogeneous, pour storage tank into the high-temperature slag in transport slag ladle, storage tank has enough capacity to support the discharge of 2 ~ 3 hours, to support continuous seepage, high-temperature slag survival in storage tank carries out online homogeneous, homogenizing temperature >=1300 DEG C in 2 ~ 3 hours;

Step 8, concurrent heating, detect the slag stream temperature in hopper, when slag stream temperature is lower than 1400 DEG C, by oxygen blast coal ash or oxygen blast coal gas mode, the slag stream of heating chute to steady-flow tank is heated, or Frequency Induction Heating is carried out to the slag in steady-flow tank, make the slag stream temperature in hopper reach mineral wool and produce or crystallite production requirement scope;

Step 9, flow control, the high-temperature slag flow that during residing different heights liquid level, it flows out in steady-flow tank is different, change liquid level and namely change flow, therefore control the liquid level of high-temperature slag in steady-flow tank with the slag stopper on the storage tank in storing heating flow control system and slag plug rod mechanism, obtain stable flow;

Step 10, the cotton or crystallite of system is produced, and the slag after homogeneous heating is sent into centrifugal glass wool making machine through hopper and got rid of to make mineral wool fibre or send into crystallite production unit and make microcrystalline product.