CN104114969B - Solidify slag manufacturing installation, the reinforcement of concrete coarse aggregate manufacturing installation, solidify the manufacture method of slag manufacture method and the reinforcement of concrete coarse aggregate - Google Patents

Solidify slag manufacturing installation, the reinforcement of concrete coarse aggregate manufacturing installation, solidify the manufacture method of slag manufacture method and the reinforcement of concrete coarse aggregate Download PDF

Info

Publication number
CN104114969B
CN104114969B CN201380009214.9A CN201380009214A CN104114969B CN 104114969 B CN104114969 B CN 104114969B CN 201380009214 A CN201380009214 A CN 201380009214A CN 104114969 B CN104114969 B CN 104114969B
Authority
CN
China
Prior art keywords
slag
mold
solidify
manufacturing installation
reversion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201380009214.9A
Other languages
Chinese (zh)
Other versions
CN104114969A (en
Inventor
荻尾勇树
当房博幸
田惠太
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Engineering Corp
Original Assignee
NKK Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NKK Corp filed Critical NKK Corp
Publication of CN104114969A publication Critical patent/CN104114969A/en
Application granted granted Critical
Publication of CN104114969B publication Critical patent/CN104114969B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B3/00General features in the manufacture of pig-iron
    • C21B3/04Recovery of by-products, e.g. slag
    • C21B3/06Treatment of liquid slag
    • C21B3/08Cooling slag
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04Waste materials; Refuse
    • C04B18/14Waste materials; Refuse from metallurgical processes
    • C04B18/141Slags
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B5/00Treatment of  metallurgical  slag ; Artificial stone from molten  metallurgical  slag 
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D15/00Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02Cooling
    • F27D15/0206Cooling with means to convey the charge
    • F27D15/0273Cooling with means to convey the charge on a rotary hearth
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B2400/00Treatment of slags originating from iron or steel processes
    • C21B2400/02Physical or chemical treatment of slags
    • C21B2400/022Methods of cooling or quenching molten slag
    • C21B2400/026Methods of cooling or quenching molten slag using air, inert gases or removable conductive bodies
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B2400/00Treatment of slags originating from iron or steel processes
    • C21B2400/04Specific shape of slag after cooling
    • C21B2400/044Briquettes or moulded bodies other than sheets
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Details (AREA)
  • Manufacture Of Iron (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Processing Of Solid Wastes (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Abstract

The slag manufacturing installation 1 that solidifies that the present invention relates to has more than 2 metal molds 5, this mold 5 has the depressed part 5a that can pour into molten slag 3, described device solidifies slag manufacturing installation by what make the molten slag 3 pouring into depressed part 5a solidify to manufacture to solidify slag 18, this solidify slag manufacturing installation possess make 2 with trussell 5 close to and support state under be rotated around in the horizontal direction be rotated around mechanism 7, be rotated around mechanism 7 to possess successively along around direction: air-cooled moving part 9, this air-cooled moving part 9 makes mold 5 move along around direction being remained on by the molten slag poured into 3 under the state in depressed part 5a, carry out air-cooled making it to the molten slag 3 remained in depressed part 5a to solidify, reversion discharge portion 11, this reversion discharge portion 11 makes mold 5 reverse according to depressed part 5a mode downward thus will solidify slag 18 to discharge, reversion moving part 13, the mold 5 after this reversion moving part 13 makes reversion moves under the state keeping reversion, inversion portion 15 again, this again inversion portion 15 mold 5 being in inverted status is reversed again according to depressed part 5a mode upward.

Description

Solidify slag manufacturing installation, the reinforcement of concrete coarse aggregate manufacturing installation, solidify the manufacture method of slag manufacture method and the reinforcement of concrete coarse aggregate
Technical field
The present invention relates to the slag of molten condition (hereinafter referred to as molten slag) is solidified and manufacture the slag (hereinafter referred to as solidifying slag) of curdled appearance solidify slag manufacturing installation, possess above-mentioned solidify the reinforcement of concrete coarse aggregate of slag manufacturing installation manufacturing installation, use the above-mentioned manufacture method of solidifying slag manufacture method and the reinforcement of concrete coarse aggregate of solidifying slag manufacturing installation.
Background technology
In order to make the molten slag produced in the refining procedure of metal etc. solidify, widely using and the cooling water of high pressure being sprayed onto molten slag and carrying out the method for quenching or molten slag be positioned over dry pit or slag field and carry out the method for Slow cooling in an atmosphere.
When carrying out quenching to molten slag, spray the cooling water of a large amount of high pressure, thus forming the particle diameter with a large amount of pore is that the sand shape of below 5mm solidifies slag (so-called water granulated slag).On the other hand, watered by molten slag when to carry out Slow cooling to ground, thickness is several meters, its fragmentation is made block to solidify slag (so-called slow cooling slag).
In recent years, along with the recycling of solidifying slag, achieve and replace gravel etc. and slag will be solidified be applied to the reinforcement of concrete coarse aggregate.Be applied to the reinforcement of concrete coarse aggregate in order to slag will be solidified, need the pore in minimizing slag, the maximum of slag particle diameter is adjusted to about 20mm.Therefore, water granulated slag because pore is many and particle diameter is little, therefore cannot be applied to the reinforcement of concrete coarse aggregate in present stage; On the other hand, for slow cooling slag, the block being of a size of several meters is crushed to the chronic of about 20mm, efficiency is not high.
Therefore, few and be easy to broken and solidify slag as the reinforcement of concrete coarse aggregate in order to obtain pore, propose the technology that the less mold of various use makes molten slag solidify.When slag being solidified among little mold, can easily obtain being greater than water granulated slag and be less than the size of slow cooling slag, the broken time can be shortened compared with slow cooling slag, easily can obtain the desired of about 20mm and solidify slag.
Manufacture as this little mold of use the device solidifying slag, such as, have the continuous solidification device of slag disclosed in patent document 1.
In the continuous solidification device of slag disclosed in patent document 1, make more than 2 metal molds with loop connecting and move in a certain direction with linearity, in mold, pouring into molten slag simultaneously and make it to solidify, discharging continuously from mold and solidify slag.
In addition, manufacture another example of solidifying slag as the little mold of use, such as, have the treating apparatus of the iron metallurgical slag recorded in patent document 2.In the treating apparatus of the iron metallurgical slag of patent document 2, use turntable, the casting plane in each casting container is made to maintain horizontal level all the time, make casting container continuous horizontal on the track of curve move simultaneously, around multi-turn, each circle solidifies a small amount of slag, by repeatedly around carrying out a large amount of slag of lamination (the 2nd page of upper right hurdle see patent document 2).
Prior art document
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2003-207281 publication
Patent document 2: Japanese Laid-Open Patent Publication 53-32828 publication
Summary of the invention
The problem that invention will solve
In the continuous solidification device of the slag described in patent document 1, with loop connecting 2 with trussell, after pouring into molten slag to the mold of the end side being arranged in ring-type, make it the other end moved linearly to ring-type, make at the above-mentioned other end place mold reverse thus slag will be solidified from mold to discharge, make the mold rectilinear movement being in inverted status return above-mentioned end side.
Thisly 2 are connected with in the device of trussell with looped linear above-mentioned, the stroke of advancing and the stroke returned are identical length, therefore in mold, pour into molten slag and make it that slag is solidified in time of mobile (stroke of advancing) and discharge and to move time of mold (stroke returned) with the state of sky identical.Molten slag is poured into and the time making it movement makes molten slag solidify the required time in mold, therefore will with this time for benchmark decides connection number and the translational speed of mold.Therefore, the traveling time after mold reversion can produce waste.
In the treating apparatus of the iron metallurgical slag described in patent document 2, all the time casting container (mold) is moved with level, this device in order to make slag rapid solidification reduce at every turn around time the thickness of cast layer, make casting container around the cast layer repeatedly carrying out laminated multi-layer, thus obtain the cast layer of desired thickness.Therefore, except the block slag that discharge reaches desired thickness, need to make the recess of casting container with state upward all the time repeatedly around during move horizontally, and in order to make the cast layer rapid solidification after injection slag and from blow air or steam on slag.In addition, for the cooling of casting container without any record, it is believed that: discharge block slag from casting container after, casting container keeps this state and slag of casting.
Therefore, according to the method and apparatus of patent document 2, then there is the problem being repeatedly difficult to obtain efficiently coagulated mass slag around expending time in.In addition, in patent document 2, to slag blow air or steam, therefore easily produce pore in slag.
It should be noted that, need to carry out repeatedly around, during this period, do not carry out pressures cooling to casting container completely, therefore often generation casting container is out of shape because of the heat of high-temperature slag thus causes device can not the problem of continuous rotation.Further, as shown in the 1st figure of patent document 2, the block slag solidified is made to tilt to the direction, footpath around direction and discharge from casting container, therefore center of gravity is relative to around off-centring, easily make rotary device overall disequilibrium, be difficult to stably obtain coagulated mass slag, become problem.
The present invention completes to solve problem as above, the object of the present invention is to provide one to solidify slag manufacturing installation, its can obtain efficiently pore few and easily utilize broken be adjusted to the particle diameter of about 20mm solidify slag.
In addition, the object of the present invention is to provide possess above-mentioned solidify the reinforcement of concrete coarse aggregate of slag manufacturing installation manufacturing installation, use the above-mentioned manufacture method of solidifying slag manufacture method and the reinforcement of concrete coarse aggregate of solidifying slag manufacturing installation.
For the means of dealing with problems
(1) one solidifies slag manufacturing installation, this solidifies slag manufacturing installation and has more than 2 metal molds, this mold has the depressed part that can pour into molten slag, described device be by the molten slag pouring into above-mentioned depressed part is solidified thus manufacture solidify slag solidify slag manufacturing installation, wherein, this solidify slag manufacturing installation possess make above-mentioned 2 with trussell close to and support state under be rotated around in the horizontal direction be rotated around mechanism, the above-mentioned mechanism that is rotated around is along possessing successively around direction: air-cooled moving part, this air-cooled moving part to make above-mentioned mold along moving around direction being remained on by the molten slag poured under the state in above-mentioned depressed part, carry out air-cooled making it to the molten slag kept in above-mentioned depressed part to solidify, reversion discharge portion, this reversion discharge portion makes above-mentioned mold reverse according to above-mentioned depressed part mode downward, thus will solidify slag discharge, reversion moving part, the above-mentioned mold after this reversion moving part makes reversion moves under the state keeping reversion, inversion portion again, this again inversion portion the above-mentioned mold being in inverted status is reversed again according to above-mentioned depressed part mode upward.
(2) as described in above-mentioned (1), solidify slag manufacturing installation, wherein, the length (angle) shared by above-mentioned air-cooled moving part exceedes and is above-mentionedly rotated around 1/2 (180 degree) of the surround orbit overall length (full angle 360 degree) of mechanism and is less than 3/4 (270 degree).
(3) as described in above-mentioned (1) or (2), solidify slag manufacturing installation, wherein, above-mentioned reversion discharge portion is by making above-mentioned mold towards rotating around direction thus making above-mentioned mold reverse.
(4) according to any one of above-mentioned (1) ~ (3), solidify slag manufacturing installation, wherein, the above-mentioned reversion moving part upper and lower surface possessed to the above-mentioned mold of inverted status sprays cooling medium and carries out the cooling device that cools.
(5) as described in above-mentioned (4), solidify slag manufacturing installation, wherein, above-mentioned cooling device is that the mode of less than 300 DEG C cools above-mentioned mold according to making the surface temperature at the above-mentioned mold back side.
(6) manufacturing installation for the reinforcement of concrete coarse aggregate, it possesses and solidifies slag manufacturing installation, to utilizing the above-mentioned slag that solidifies solidifying the manufacture of slag manufacturing installation to carry out broken impact grinding device and to solidifying the grading plant that slag carries out classification after utilizing above-mentioned impact grinding device to carry out fragmentation according to any one of above-mentioned (1) ~ (5).
(7) one solidifies slag manufacture method; its be use according to any one of above-mentioned (1) ~ (5) solidify slag manufacturing installation to manufacture solidify slag solidify slag manufacture method; wherein; molten slag is poured in the above-mentioned depressed part of above-mentioned mold; the above-mentioned mold pouring into molten slag in above-mentioned depressed part is rotated around; carry out air-cooled to the molten slag poured into above-mentioned depressed part simultaneously, above-mentioned mold is reversed thus the slag that solidifies being frozen into the tabular of the thickness of 20mm ~ 40mm is discharged.
(8) manufacture method for the reinforcement of concrete coarse aggregate, wherein, to utilizing the slag that solidifies solidifying the manufacture of slag manufacture method described in above-mentioned (7) to carry out fragmentation, is classified into 5mm ~ 20mm by the slag that solidifies after fragmentation.
Invention effect
According to the present invention, one can be provided to solidify slag manufacturing installation, this solidify slag manufacturing installation can efficiently obtain pore few and easily by broken be adjusted to the particle diameter of about 20mm solidify slag.
In addition, according to the present invention, can provide possess above-mentioned solidify the reinforcement of concrete coarse aggregate of slag manufacturing installation manufacturing installation, use the above-mentioned manufacture method of solidifying slag manufacture method and the reinforcement of concrete coarse aggregate of solidifying slag manufacturing installation.
Accompanying drawing explanation
Fig. 1 is the schematic diagram schematically showing that the entirety of solidifying slag manufacturing installation of an embodiment of the invention is formed.
Fig. 2 is the key diagram solidifying the mold of slag manufacturing installation of an embodiment of the invention.
Fig. 3 solidifies to an embodiment of the invention the key diagram that the configuration being rotated around each portion of mechanism in slag manufacturing installation is described.
Detailed description of the invention
The slag manufacturing installation 1 (see Fig. 1) that solidifies of an embodiment of the invention has more than 2 metal molds 5, this mold 5 has the depressed part 5a (Fig. 2 reference) that can pour into molten slag 3, this device solidifies slag manufacturing installation by what make the molten slag 3 pouring into depressed part 5a solidify to manufacture to solidify slag 18, wherein, this solidify slag manufacturing installation possess make 2 with trussell 5 close to and support state under be rotated around in the horizontal direction be rotated around mechanism 7.
Be rotated around mechanism 7 to possess successively along around direction: air-cooled moving part 9, this air-cooled moving part 9 makes mold 5 move along around direction being remained on by the molten slag poured into 3 under the state in depressed part 5a, carries out air-cooled making it solidify the molten slag 3 remained in depressed part 5a; Reversion discharge portion 11, this reversion discharge portion 11 makes mold 5 reverse according to depressed part 5a mode downward thus will solidify slag 18 to discharge; Reversion moving part 13, the mold 5 after this reversion moving part 13 makes reversion moves under the state keeping reversion; Inversion portion 15 again, this again inversion portion 15 mold 5 being in inverted status is reversed again according to depressed part 5a mode upward, can possess the moving part 17 that again reverses as required, this moving part 17 that again reverses makes the mold after again reversing 5 move to the position pouring into molten slag 3.
Slag manufacturing installation 1 is solidified in utilization, at mold 5 during solidifying and rounding in slag manufacturing installation 1, pours into molten slag 3 and manufacture and solidify slag in depressed part 5a, carries out around thus carries out the operation in each week continuously.
It should be noted that, solidify in slag manufacturing installation 1 and chute 20 can be set, make to be easy to pour into molten slag 3 in mold 5.
Below, each formation is described in detail.
< mold >
Mold 5 has the depressed part 5a at the shallow end pouring into molten slag 3.More particularly, as shown in Figure 2, mold 5 is advisable with the metal container with the depressed part 5a being roughly trapezoidal shape.As shown in Figure 1, the mold 5 of present embodiment forms the adjacent configuration of mode of circumference according to making 2 with trussell 5.Therefore, in order to be configured efficiently with circle-shaped, formed with the edge of outer circumferential side be go to the bottom, the approximate trapezoid that is upper base with the edge of inner circumferential side.
It should be noted that, with circle-shaped configuration mold 5 in this example, therefore make the shape of mold 5 to overlook as approximate trapezoid, but as long as the shape being set as corresponding to surround orbit carries out the shape of effectively configuration.Such as, if surround orbit is rectangular shape, then mold 5 is preferably rectangle.
The inwall of mold 5 can have the inclined plane 5b tilted laterally the end of from upward.This makes to solidify the slag demoulding to be easy to when making mold 5 reverse.
In addition, can arrange anti-slag and drop position 5c in mold 5, this anti-slag drops the gap (see Fig. 2) of position 5c for preventing molten slag 3 from falling into adjacent mold 5 when pouring into molten slag 3.
The material of mold 5 is made up of the metal casting the excellent heat resistances such as steel or stainless steel.In addition, the thickness of mold 5 is advisable with such as about 40mm.When the thickness of mold 5 is too thin, be easily out of shape because of the heat of high temperature furnace slag, obstacle can be caused to transmission, be therefore preferably at least more than 20mm; Otherwise time too thick, weight increases and likely causes obstacle to transmission and reversion, is thus preferably below 80mm.
It should be noted that, as described below, when will solidify slag as the reinforcement of concrete coarse aggregate, the thickness solidifying slag will be preferably 20mm ~ 40mm.Solidify slag in order to what manufacture this concreting thickness, the degree of depth of the depressed part 5a of mold 5 is preferably about the 60mm ~ 200mm of about 3 ~ 5 times of concreting thickness.If have the degree of depth of about 3 ~ 5 times of concreting thickness, even if when the flow variation of molten slag, molten slag also can not overflow from mold.
< is rotated around mechanism >
Be rotated around mechanism 7 to make it to be rotated around with trussell 5 according to circle-shaped support 2 with proximity state.Supporting mechanism for supporting mold 5 is not particularly limited, such as, axle portion and wheel can be set at the outer circumferential side of mold 5 and inner circumferential side, by above-mentioned wheel supporting in along on the guide rail extended around direction, make rotation of wheel by driving mechanism with specific speed.
For being rotated around for mechanism 7, the interval of rounding in slag manufacturing installation 1 is being solidified at mold 5, as shown in figures 1 and 3, along possessing air-cooled moving part 9, reversion discharge portion 11, reversion moving part 13, again inversion portion 15, the moving part of reversion again 17 as required successively around direction.
The following detailed description of each several part being rotated around mechanism 7.
" air-cooled moving part "
Air-cooled moving part 9 makes mold 5 carry out the air-cooled position making it to solidify along moving around direction to molten slag 3 being remained on by the molten slag poured into 3 under the state in depressed part 5a.
In air-cooled moving part 9, the molten slag 3 poured into is by air-cooled and reach specific curdled appearance and need the time, and the mechanism 7 that is rotated around of present embodiment makes mold 5 be rotated around in the horizontal direction, thus do not have to make as connect the situation of mold 5 with looped linear the half stroke be rotated around to be the such restriction of the air-cooled moving part 9 that solidifies for molten slag.
Therefore, also can by required for each portions such as the reversion discharge portion 11 that continues with air-cooled moving part 9 around the length allocation beyond the length of direction to air-cooled moving part 9.Thus, can make not produce ineffective time around in stroke.
It should be noted that, in air-cooled moving part 9, when cooling to slag watering, be frozen into Porous and cause the slag intensity of solidifying to decline, therefore forbidding watering.
In addition, the length (angle) shared by air-cooled moving part 9 is to exceed in surround orbit overall length (full angle 360 degree) 1/2 (180 degree) of shared ratio and to be less than 3/4 (270 degree) and to be advisable.
" reversion discharge portion "
Reversion discharge portion 11 mold 5 is reversed according to depressed part 5a mode downward and solidifies what utilize air-cooled moving part 9 to solidify the position that slag 18 discharges.
As shown in Figure 1, reversion is after discharge portion 11 is configured in air-cooled moving part 9, hold the groove 19 solidifying slag 18 of discharging be arranged on around the below of mold 5.
The mechanism that mold 5 is reversed is not particularly limited, such as can as described in the above-mentioned explanation being rotated around mechanism 7, support in the mode that can rotate when mold 5 axle being supported on guide rail via wheel, and, pre-set in air-cooled moving part 9 and keep the attitude of mold 5 to make the non-rotary maintaining part of mold 5, then can arrange guide portion, this guide portion guides when mold 5 arrives reversion discharge portion 11 and the attitude of mold 5 is reversed.
It should be noted that, as shown in Figure 1, the reverse directions of mold 5 is preferably towards rotating around direction thus the direction of reversing.If make mold 5 to rotating around direction thus reversing, then there are the following problems: such as the situation making mold 5 tilt to the direction, footpath around direction of patent document 2, center of gravity is relative to causing rotary device overall disequilibrium around misalignment.The rotation around direction of mold 5 can be any one in turning clockwise or turning counterclockwise.
" reversion moving part "
Reversion moving part 13 makes reversion in reversion discharge portion 11 and discharges the mold 5 after solidifying slag with the position keeping the state of reversing to carry out movement.As shown in Figure 1, reverse preferably to arrange in moving part 13 and spray cooling medium from the upper side and lower side of mold 5 and cooling device 21 that mold 5 is cooled.
Specifically, nozzle etc. can be used cooling water, water smoke or refrigerating gas to be sprayed onto the mold after reversion 5 from the upper side and lower side, but in order to efficiently and cool at short notice, carry out quenching be advisable to spray cooling water from upper and lower both sides.
In the present embodiment, cool when making depressed part 5a downward when making mold 5 reverse, thus cooling water drops naturally, does not have the residual of water in the inside of mold 5.Therefore, there is not following problems: as remaining the situation of cooling water in mold 5, again to again reversion after mold in pour into molten slag time, in the slag solidified, produce a large amount of pore and cannot the reinforcement of concrete coarse aggregate be used as.In addition, cause the problem of the danger of steam explosion also to disappear completely, what can manufacture high-quality safely solidifies slag 18.
It should be noted that, by from the upper side and lower side, this two cools in the face of mold 5, compared to only shortening cool time from the one-sided cooling carried out, therefore the length that the reversion moving part 13 of cooling mold is shared in always around length can be shortened, thus correspondingly can increase the length of the air-cooled moving part 9 solidified for slag, the length of air-cooled moving part 9 can be made to exceed 1/2 of surround orbit overall length.
As mentioned above, the length of air-cooled moving part 9 needs the time of guaranteeing for making molten slag 3 be solidified as specific state, therefore need specific length, but the length that can reduce each position beyond length-specific around the ratio in length, thus device integral miniaturization can be made.Consider from this meaning, contribute to very much the miniaturization of device entirety from upper and lower surface cooling mold 5.
In addition, by from upper and lower surface cooling mold 5, mold 5 can be cooled equably, thus also have and can prevent the thermal contraction because cooling causes and make mold 5 be out of shape such excellent effect.To carry out in these actions be major issue stable for being rotated around or reversing for the distortion of mold 5, and thus the abundant cooling of mold 5 is keys of this device running.
It should be noted that, preferably from the upper side and lower side, the cooling of mold 5 is carried out on this two sides as described above, but does not get rid of in the present invention only from upside or the one-sided cooling only carried out from downside.
" again inversion portion "
Inversion portion 15 makes the mold 5 being in inverted status after moving in reversion moving part 13 again carry out the position of reversing according to depressed part 5a mode upward again.After inversion portion 15 is preferably arranged on reversion moving part 13 again and in the depressed part 5a of mold 5 residual cooling water state after.
That is, as shown in Figure 1, preferably after being cooled by cooling device 21, only reverse mobile specific range, again reverses afterwards.Its reason be because, only reverse mobile specific range after the cooling period, thus reversion mobile in the part of moisture that remains when cooling naturally drop from mold 5, a part is evaporated due to the residual heat solidifying the mold after slag 5 of discharge high temperature, thus removes moisture completely.
It should be noted that, the mechanism that mold 5 is reversed again is not particularly limited, such as same with above-mentioned reversion discharge portion 11 mechanism can be adopted.In addition, as shown in Figure 1, the reverse directions again for mold 5 is also preferably set in the same manner as discharge portion 11 of reversing towards rotating around direction thus again reversing.In addition, mold 5 can be any one in clockwise turn or counterclockwise turn along the rotation around direction.
" reverse moving part again "
The moving part 17 that again reverses is positions that the mold 5 making again to reverse moves to the place pouring into molten slag 3.
It should be noted that, if at once pour into molten slag 3 after again being reversed by mold 5 in inversion portion 15 again, then the moving part 17 that again reverses also can not be set.
For use present embodiment as constructed as above solidify the example that slag manufacturing installation 1 manufactures the method for solidifying slag, be described in the lump with the action of solidifying slag manufacturing installation 1.
Make to be rotated around mechanism 7 to rotate with specific speed, molten slag flow into position to around mold 5 in pour into molten slag 3, pour into the mold 5 after molten slag 3 and move in air-cooled moving part 9, carry out air-cooled to molten slag 3 and formed and solidify slag.
Mold 5 court in reversion discharge portion 11 arriving reversion discharge portion 11 rotates around direction thus reverses, and solidifies slag 18 and is discharged to groove 19.Discharge the mold 5 after solidifying slag 18 to move in reversion moving part 13 with inverted status, cooled by cooling device 21 in above-mentioned mobile way.
Depressed part 5a is made upward in inversion portion 15 again towards again reversing around direction rotates by the mold 5 of the moving part 13 that reverses.After reversion again at once or again to reverse in moving part 17 mobile after, again utilize slag inflow part to pour into molten slag 3 in the mold 5 again reversed.
As mentioned above, in the present embodiment, solidify slag manufacturing installation 1 possess make 2 with trussell 5 close to and support state under be rotated around in the horizontal direction be rotated around mechanism 7, be rotated around mechanism 7 to possess: air-cooled moving part 9, this air-cooled moving part 9 pairs of molten slags 3 carry out air-cooled making it and solidify; Reversion discharge portion 11, this reversion discharge portion 11 makes mold 5 reverse according to depressed part 5a mode downward thus will solidify slag 18 to discharge; Reversion moving part 13, the mold 5 after this reversion moving part 13 makes reversion moves under the state keeping reversion; Inversion portion 15 again, this again inversion portion 15 mold 5 being in inverted status is reversed again make depressed part 5a upward.Thus, unlike with looped linear connect mold past case the necessary length of air-cooled stroke of solidifying due to slag and the overall circumference of device is restricted, can by necessary for each portions such as the reversion discharge portion 11 that continues with air-cooled moving part 9 around the length allocation outside the length of direction to the length of air-cooled moving part 9, can not ineffective time be produced around in stroke.
In addition, in the present embodiment, from upper and lower surface, mold 5 is cooled in reversion moving part 13, thus mold 5 can effectively be cooled, can shorten the length of reversion moving part 13 thus, its result can shorten around length, thus can make device overall compact.
It should be noted that, in order to manufacture JISA5011 the reinforcement of concrete slag aggregate-1: the aggregate of the particle size range of specific blast-furnace slag coarse aggregate 2005 in blast-furnace slag aggregate, preferably makes the concreting thickness of slag be 20mm ~ 40mm.
When concreting thickness is less than 20mm, the size distribution after fragmentation becomes particulate, is not easy to meet standard.
On the other hand, if concreting thickness is more than 40mm, then water absorption rate increases and easily more than 1.5%; And in order to make concreting thickness be that below 20mm needs fragmentation repeatedly, being less than the particulate increase of 5mm and productivity ratio easily declines, thus becoming problem.As described below, the water absorption rate as coarse aggregate is preferably less than 1%.
It should be noted that, in the above-described embodiment, be illustrated solidifying slag manufacturing installation 1, if use the impact grinding device such as impact crusher or hammer mill and grading plant, then form the manufacturing installation of the reinforcement of concrete coarse aggregate on the whole, described impact grinding device is used for solidifying tabular that slag manufacturing installation 1 manufactures and solidifying slag to by this and pulverize, and described grading plant is used for utilizing the slag that solidifies of impact grinding device fragmentation to be classified as the 20mm ~ 5mm that can be used as the reinforcement of concrete coarse aggregate.
It should be noted that, in above-mentioned embodiment, show as shown in Figure 1 to make around direction be clockwise example, but being not limited thereto around direction in the present invention can be also counterclockwise according to the order of air-cooled moving part, reversion discharge portion, reversion moving part, again inversion portion, the moving part that again reverses as required.
In addition, around shape may not be circle-shaped, can be such as ellipse, rectangle etc.
Embodiment
The action effect that slag manufacturing installation 1 brings is solidified for present embodiment, is described based on specific embodiment.
In the present embodiment, mold 5 is overlook the cast steel system in trapezoidal shape, and its thickness is 45mm, the upper base minor face of trapezoidal external diameter is 0.7m, the length of the minor face of going to the bottom of trapezoidal external diameter is 1.0m, the height of trapezoidal external diameter is 2.7m.In addition, the degree of depth of the depressed part 5a of mold 5 is 100mm.
Be rotated around mechanism 7 same as shown in Figure 1, around transmit transfer rate in the mould the heart be 14 ms/min.
Slag flows in position, make more than 1360 DEG C and the blast-furnace slag of the molten condition of less than 1410 DEG C according to about 2 tons of/minute inflow molds 5.
Pour into the mold 5 after molten slag 3 to transmit in air-cooled moving part 9 about 120 seconds { length of air-cooled moving part is 2/3 (240 degree) of complete cycle }, solidify slag by air-cooled to be made by molten slag 3.
In reversion discharge portion 11, as illustrated in embodiment, rotate around direction using the back shaft of mold 5 as axial rotary thus mold 5 is reversed, making to solidify slag 18 and drop and be expelled to groove 19.Mold 5 after making discharge solidify slag 18 keeps inverted status to move in reversion moving part 13, sprays cooling water carry out quenching at the position being provided with cooling device 21 from upper and lower surface.
Solidify slag discharge after the mold 5 being in inverted status be soon the condition of high temperature more than 300 DEG C with solidifying the surface that slag 18 contacts, but by spraying cooling water under the state keeping reversion, can by the temperature below the surface temperature quenching to 200 of mold 5 DEG C.
Cooled mold 5 keeps the depressed part 5a of mold 5 state downward to transmit in reversion moving part 13, and the moisture part remained during water-cooled during this naturally drops from mold 5, a part is evaporated due to the residual heat of mold 5, thus is completely removed.
It should be noted that, the temperature of mold reached maximum temperature at once before making slag reverse to drop, if but the surface temperature at the mold back side (reverse side of the upper surface of the mold of reversion, i.e. mold) now utilizing radiation thermometer to measure is more than 300 DEG C, then yield strength declines and mold 5 is out of shape sometimes, thus desirably, increase watering amount, watering time and the temperature drop utilizing cooling water to spray the mold obtained is increased, the surface temperature at the back side of the mold 5 before the mold that makes thus to be about to reverse is less than 300 DEG C.
Then, the mold 5 of inverted status passes through again inversion portion 15 and again reverses, and again returns original depressed part 5a state upward.Afterwards, in the mold returned, again molten slag is poured into.For the slag pot operation that 5 circles are above repeatedly, continuously process 30 tons of molten slags.
After being reclaimed from groove 19 by the slag dropped in mold from reversion, measure concreting thickness, be 20mm ~ 30mm, average thickness is 25mm.
Compared with forming the situation of several meters of thickness with being watered by molten slag 3 of implementing to ground in the past, also make cooling velocity increase even air-cooled, solidifying slag 18 is the few and crystalline of densification of pore.
As above, utilize and solidify slag manufacturing installation 1, what efficiently and continuously can obtain extremely low, the fine and close and high-quality of air vent content solidifies slag 18.
Then, in order to the slag that solidifies so manufactured is made the reinforcement of concrete coarse aggregate, use impact crusher to solidify 10 tons, slag to tabular and carried out fragmentation.Further, the sieve of 20mm, 5mm is utilized to carry out classification to the slag after fragmentation.Thus, the reinforcement of concrete coarse aggregate of 20mm ~ 5mm can be manufactured.
The water absorption rate of the coarse aggregate manufactured by mensuration, result is 0.9%, is significantly less than 3% ~ 4% of the water absorption rate as blast-furnace slag coarse aggregate in the past, obtains the water absorption rate equal with natural aggregate.
It should be noted that, as the water absorption rate of coarse aggregate, be preferably less than 1%.
Symbol description
1 solidifies slag manufacturing installation
3 molten slags
5 molds
5a depressed part
5b inclined plane
The anti-slag of 5c drops position
7 are rotated around mechanism
9 air-cooled moving parts
11 reversion discharge portions
13 reversion moving parts
15 inversion portions again
17 reverse moving part again
18 solidify slag
19 grooves
20 chutes
21 cooling devices

Claims (6)

1. one kind solidifies slag manufacturing installation, this solidifies slag manufacturing installation and has more than 2 metal molds, this mold has the depressed part that can pour into molten slag, described device be by the molten slag pouring into described depressed part is solidified thus manufacture solidify slag solidify slag manufacturing installation, wherein, this solidify slag manufacturing installation possess make described 2 with trussell close to and be rotated around in the horizontal direction under the state supported be rotated around mechanism, described in be rotated around mechanism along possessing successively around direction:
Air-cooled moving part, this air-cooled moving part to make described mold along moving around direction being remained on by the molten slag poured under the state in described depressed part, carry out air-cooled making it solidify the molten slag kept in described depressed part;
Reversion discharge portion, this reversion discharge portion makes described mold reverse according to described depressed part mode downward, thus will solidify slag discharge;
Reversion moving part, the described mold after this reversion moving part makes reversion moves under the state keeping reversion; With
Inversion portion again, this again inversion portion the described mold being in inverted status is reversed again according to described depressed part mode upward,
Described reversion discharge portion by making described mold towards to rotate around direction thus to make described mold reverse,
Wherein, the described reversion moving part upper and lower surface possessed to the described mold of inverted status sprays the cooling device that cooling medium and carrying out cools.
2. solidify slag manufacturing installation as claimed in claim 1, wherein, be rotated around 1/2 of the surround orbit overall length of mechanism described in length shared by described air-cooled moving part exceedes and be less than 3/4, be rotated around 180 degree of the full angle 360 degree of mechanism described in the angle namely shared by described air-cooled moving part exceedes and be less than 270 degree.
3. solidify slag manufacturing installation as claimed in claim 1, wherein, described cooling device is that the mode of less than 300 DEG C cools described mold according to making the surface temperature at the described mold back side.
4. a manufacturing installation for the reinforcement of concrete coarse aggregate, it possesses solidifying slag manufacturing installation, carrying out broken impact grinding device and to solidifying the grading plant that slag carries out classification after utilizing described impact grinding device to carry out fragmentation to the slag that solidifies solidifying the manufacture of slag manufacturing installation described in utilizing according to any one of claims 1 to 3.
5. one kind solidifies slag manufacture method; its be use according to any one of claim 1 ~ 3 solidify slag manufacturing installation to manufacture solidify slag solidify slag manufacture method; wherein; molten slag is poured in the described depressed part of described mold; the described mold pouring into molten slag in described depressed part is rotated around; carry out air-cooled to the molten slag poured into described depressed part simultaneously, described mold is reversed thus the slag that solidifies being frozen into the tabular of the thickness of 20mm ~ 40mm is discharged.
6. a manufacture method for the reinforcement of concrete coarse aggregate, wherein, to utilizing the slag that solidifies solidifying the manufacture of slag manufacture method described in claim 5 to carry out fragmentation, is classified into 5mm ~ 20mm by the slag that solidifies after fragmentation.
CN201380009214.9A 2012-02-17 2013-02-13 Solidify slag manufacturing installation, the reinforcement of concrete coarse aggregate manufacturing installation, solidify the manufacture method of slag manufacture method and the reinforcement of concrete coarse aggregate Active CN104114969B (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2012032834 2012-02-17
JP2012-032834 2012-02-17
JP2012-170321 2012-07-31
JP2012170321 2012-07-31
PCT/JP2013/053331 WO2013122074A1 (en) 2012-02-17 2013-02-13 Device for manufacturing solidified slag, device for manufacturing coarse aggregate for concrete, method for manufacturing solidified slag, and method for manufacturing coarse aggregate for concrete

Publications (2)

Publication Number Publication Date
CN104114969A CN104114969A (en) 2014-10-22
CN104114969B true CN104114969B (en) 2016-03-02

Family

ID=48984184

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201380009214.9A Active CN104114969B (en) 2012-02-17 2013-02-13 Solidify slag manufacturing installation, the reinforcement of concrete coarse aggregate manufacturing installation, solidify the manufacture method of slag manufacture method and the reinforcement of concrete coarse aggregate

Country Status (5)

Country Link
JP (1) JP5413542B1 (en)
KR (1) KR101587371B1 (en)
CN (1) CN104114969B (en)
TW (1) TWI512257B (en)
WO (1) WO2013122074A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5994558B2 (en) * 2012-10-15 2016-09-21 Jfeスチール株式会社 Method and apparatus for manufacturing coarse aggregate for concrete
JP6015593B2 (en) * 2013-08-20 2016-10-26 Jfeスチール株式会社 Solidified slag manufacturing apparatus and solidified slag manufacturing method
CN105907905B (en) * 2016-06-22 2018-06-22 中冶东方工程技术有限公司 A kind of molten slag waste-heat recovery device
CN107166968B (en) * 2017-07-21 2023-01-17 三河熙博机械制造有限公司 Double-layer air supply system of static sealing ring cooler
CN108675298B (en) * 2018-06-23 2024-01-12 石嘴山市华兴源机械设备有限公司 Ring type calcium carbide discharging and crushing integrated machine
KR102163183B1 (en) 2018-12-03 2020-10-08 주식회사 포스코 Slag manufacturing device
KR102201227B1 (en) 2019-07-30 2021-01-11 주식회사 제이피에스 System for processing slag by unit solidification
CN113620631B (en) * 2021-07-27 2022-11-01 湖北大学 Be used for even forming device of concrete large aggregate production smelting process

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5221295A (en) * 1975-08-12 1977-02-17 Kawasaki Heavy Ind Ltd Treating method for molten slag
CN1366513A (en) * 2000-02-25 2002-08-28 川崎制铁株式会社 Blast furnace granulated slag, fine aggregate prepared therefrom and method for producing them
CN101259991A (en) * 2008-05-09 2008-09-10 马鞍山钢铁股份有限公司 Wind-crushing water-cooling granulating method and device for high-temperature liquid-state steel slag, granulating steel slag and use thereof
CN101977866A (en) * 2008-03-20 2011-02-16 杰富意钢铁株式会社 Cooling treatment system and cooling treatment method of molten slag
CN201981212U (en) * 2011-01-12 2011-09-21 宝山钢铁股份有限公司 Blast furnace slag treatment system
CN102268495A (en) * 2011-07-20 2011-12-07 北京中冶设备研究设计总院有限公司 Process technology and equipment for granulating blast-furnace slag and utilizing waste heat

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5221595A (en) * 1975-08-13 1977-02-18 Hitachi Ltd Failure fuel detecting method
JPS5332828A (en) 1976-09-08 1978-03-28 Osaka Seikou Kk Method and device for disposing of iron metallurgy dross
JPS53129124A (en) * 1977-04-18 1978-11-10 Nagata Seisakusho Co Ltd Circular casting machine
JP2003207281A (en) 2002-01-18 2003-07-25 Jfe Steel Kk Operating method of continuous solidification device of slag
JP4822720B2 (en) * 2005-03-17 2011-11-24 Jx日鉱日石金属株式会社 Anode casting method and anode casting apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5221295A (en) * 1975-08-12 1977-02-17 Kawasaki Heavy Ind Ltd Treating method for molten slag
CN1366513A (en) * 2000-02-25 2002-08-28 川崎制铁株式会社 Blast furnace granulated slag, fine aggregate prepared therefrom and method for producing them
CN101977866A (en) * 2008-03-20 2011-02-16 杰富意钢铁株式会社 Cooling treatment system and cooling treatment method of molten slag
CN101259991A (en) * 2008-05-09 2008-09-10 马鞍山钢铁股份有限公司 Wind-crushing water-cooling granulating method and device for high-temperature liquid-state steel slag, granulating steel slag and use thereof
CN201981212U (en) * 2011-01-12 2011-09-21 宝山钢铁股份有限公司 Blast furnace slag treatment system
CN102268495A (en) * 2011-07-20 2011-12-07 北京中冶设备研究设计总院有限公司 Process technology and equipment for granulating blast-furnace slag and utilizing waste heat

Also Published As

Publication number Publication date
KR20140112080A (en) 2014-09-22
KR101587371B1 (en) 2016-01-20
JPWO2013122074A1 (en) 2015-05-11
CN104114969A (en) 2014-10-22
TWI512257B (en) 2015-12-11
JP5413542B1 (en) 2014-02-12
WO2013122074A1 (en) 2013-08-22
TW201403015A (en) 2014-01-16

Similar Documents

Publication Publication Date Title
CN104114969B (en) Solidify slag manufacturing installation, the reinforcement of concrete coarse aggregate manufacturing installation, solidify the manufacture method of slag manufacture method and the reinforcement of concrete coarse aggregate
EP2616559B1 (en) Dry granulation of metallurgical slag
CN103261443B (en) The granulation of metallurgical slag
JP2009227497A (en) Cooling treatment device and cooling processing method of molten slag
CN101545018A (en) Technological method of ladle slag thermal processing
JP5998845B2 (en) Heat recovery system and heat recovery method for solidified slag
WO2014184260A1 (en) Casting apparatus and method of controlling said apparatus
CN1858262A (en) Method for treating high viscosity metallurgical smelting slag
CN102328092B (en) Ferroalloy granulating device and granulating method
EA023119B1 (en) Method and device for manufacturing vitreous slag
JP2009051719A (en) Apparatus and method for cooling treatment of molten slag
CN105452187B (en) Solidify the manufacture method of clinker, solidify the manufacture method and concrete coarse aggregate of clinker, concrete with coarse aggregate
JP2003221611A (en) Method and apparatus for casting slag
JP6060921B2 (en) Slag continuous casting equipment
JP6015593B2 (en) Solidified slag manufacturing apparatus and solidified slag manufacturing method
CN105563618A (en) Device for manufacturing stone by reducing smelting electric furnace slag
JP5994558B2 (en) Method and apparatus for manufacturing coarse aggregate for concrete
CN205501139U (en) Device that stone material was made to electric stove slay is smelted in reduction
JP5892143B2 (en) Solidified slag manufacturing apparatus, concrete coarse aggregate manufacturing apparatus, solidified slag manufacturing method, concrete coarse aggregate manufacturing method
CN214300206U (en) Equipment for granulating high-temperature molten slag by utilizing high-speed airflow
CN208019427U (en) A kind of rapid hardening furnace
KR101280384B1 (en) Method for removing molten metal in slag pot
CN114735953A (en) Recycling method of high-titanium blast furnace slag
KR20200017964A (en) Apparatus and method for granulation a molten slag
CN116851765A (en) Ferrosilicon particle casting process

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant