CN114653303A - High-temperature slag collecting system - Google Patents
High-temperature slag collecting system Download PDFInfo
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- CN114653303A CN114653303A CN202210261447.9A CN202210261447A CN114653303A CN 114653303 A CN114653303 A CN 114653303A CN 202210261447 A CN202210261447 A CN 202210261447A CN 114653303 A CN114653303 A CN 114653303A
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- 239000002893 slag Substances 0.000 title claims abstract description 120
- 230000007246 mechanism Effects 0.000 claims abstract description 51
- 238000005469 granulation Methods 0.000 claims abstract description 15
- 230000003179 granulation Effects 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 239000008187 granular material Substances 0.000 claims abstract description 6
- 239000012530 fluid Substances 0.000 claims description 19
- 239000011819 refractory material Substances 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 10
- 239000007769 metal material Substances 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims 1
- 239000002245 particle Substances 0.000 description 63
- 238000000034 method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 10
- 239000002918 waste heat Substances 0.000 description 6
- 239000000498 cooling water Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000003116 impacting effect Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- OBSZRRSYVTXPNB-UHFFFAOYSA-N tetraphosphorus Chemical compound P12P3P1P32 OBSZRRSYVTXPNB-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004017 vitrification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/12—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic in rotating drums
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
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Abstract
The invention relates to a high-temperature slag collecting system, and belongs to the technical field of mechanical equipment. Provided is a high-temperature slag collection system comprising: the granulating device is arranged at an output port of the high-temperature molten slag and rotates by taking the granulating device as a shaft so as to granulate the high-temperature molten slag; the granulation device comprises a rotating body baffle, a granulation device and a granulation device, wherein the rotating body baffle comprises a first opening and a second opening; the movable bed is arranged at the second opening and rotates by taking the movable bed as a shaft; the spiral mechanism is arranged between the revolving body baffle and the movable bed, and rotates by taking the spiral mechanism as a shaft, so that the granulated high-temperature molten slag is output. The slag is granulated by the granulating device to avoid forming slag blocks, and the slag blocks fall to the movable bed through cooling and guiding on the revolving body baffle plate, and the slag is output in the form of slag granules through the autorotation of the spiral mechanism.
Description
Technical Field
The invention belongs to the technical field of mechanical equipment, and relates to a high-temperature slag collecting system.
Background
In some metallurgical processes, a large amount of high-temperature liquid slag appears, and the discharged materials are mostly cooled by water quenching, hot splashing or direct placement, so that a large amount of waste heat is wasted. Especially in the yellow phosphorus production industry, the yellow phosphorus slag is the largest solid waste in the three wastes of yellow phosphorus, and slag liquid at about 1400 ℃ is directly water quenched, so that waste heat resources are wasted, and the water quenching process has large water consumption and serious pollution.
Therefore, in order to realize the waste heat recovery of the high-temperature slag, a great deal of dry centrifugal granulation research is carried out in recent years. However, in the centrifugal granulation process, how to effectively collect and transport the generated semi-molten high-temperature slag particles to a waste heat recovery device is always a technical problem. The high-temperature slag particles are easy to adhere, harden and gather to form slag blocks, which affect the discharging process on one hand, and the cooling speed becomes slow after the slag blocks are formed on the other hand, thereby affecting the vitrification rate of the slag particles. Therefore, the problem that slag particles are easy to harden and adhere in the centrifugal granulation process is solved, and the main factor for ensuring the continuous and stable operation of the whole centrifugal granulation system is provided.
Disclosure of Invention
In view of this, the present invention aims to provide a high temperature slag collecting system, which improves the difficulty in recycling high temperature slag in the prior art, and solves the problem that slag particles are easy to harden in the granulation process.
In order to achieve the purpose, the invention provides the following technical scheme:
a high temperature slag collection system, comprising:
the granulating device is arranged at an output port of the high-temperature molten slag and rotates by taking the granulating device as a shaft so as to granulate the high-temperature molten slag;
the granulating device comprises a revolving body baffle, a granulating device and a control device, wherein the revolving body baffle comprises a first opening and a second opening, and the granulating device is arranged close to the first opening;
a movable bed which is arranged below the second opening and rotates by taking the movable bed as a shaft,
the spiral mechanism is arranged between the revolving body baffle and the movable bed, and rotates by taking the spiral mechanism as a shaft, so that the granulated high-temperature molten slag is output.
Optionally, the screw mechanism includes a screw and a screw plate mounted on the surface of the screw, and the screw extends from the inside to the outside of the revolving body baffle.
Optionally, a distance between the granulating device and the movable bed is L1, a distance between the first opening and the movable bed is L2, and L1 is not less than L2.
Optionally, a storage groove is arranged on the movable bed, and the storage groove is annular.
Optionally, the storage tank comprises a metal material layer and a refractory material layer, and the refractory material layer is arranged on the metal material layer.
Optionally, a discharge hole is formed in one end, extending to the revolving body baffle, of the screw.
Optionally, the baffle of the solid of revolution comprises a cooling chamber for circulating a fluid, a fluid inlet and a fluid outlet, and the cooling chamber comprises a solid of revolution structure.
Optionally, the fluid outlet is disposed above the fluid inlet.
The invention has the beneficial effects that:
the slag is granulated by the granulating device, the slag particles fly and impact the revolving body baffle, and fall to the movable bed through cooling and guiding on the revolving body baffle, and the slag particles are output to the next process by the upper blade of the spiral mechanism through autorotation of the spiral mechanism, so that the waste heat of the slag is effectively utilized. The invention can effectively prevent the adhesion of high-temperature slag particles caused by recalescence by means of the rotary movable bed and the spiral mechanism, and ensures the continuous and stable operation of a slag granulation system so as to improve the recovery efficiency and the utilization value of the slag.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims thereof.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a screw mechanism outputting slag particles from a moving bed;
fig. 3 is a schematic diagram of an included angle between a wall surface of a baffle of the revolving body and a horizontal plane, wherein fig. 3(a) is a schematic diagram of an acute included angle between the wall surface of the baffle of the revolving body and the horizontal plane, and fig. 3(b) is a schematic diagram of a right angle between the wall surface of the baffle of the revolving body and the horizontal plane; FIG. 3(c) is a schematic diagram of an obtuse angle formed between the wall surface of the baffle of the revolving body and the horizontal plane;
FIG. 4 is a schematic view of a baffle of a solid of revolution;
FIG. 5 is a schematic view of a screw mechanism;
fig. 6 is a schematic view of the storage tank, wherein fig. 6(a) is a schematic view of the position of the metal material of the movable bed surface, and fig. 6(b) is a schematic view of the position of the refractory material of the movable bed surface.
Reference numerals: the device comprises a revolving body baffle 1, a fluid inlet 11, a fluid outlet 12, a fluid 13, a granulating device 2, a movable bed 3, a metal material layer 31, a refractory material layer 32, a spiral mechanism 4, a discharge port 5 and slag particles 6.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and the specific meaning of the terms described above will be understood by those skilled in the art according to the specific circumstances.
As shown in fig. 1 to 6, there is provided a high temperature slag collecting system including:
the granulating device 2 is arranged at an output port of the high-temperature molten slag, and the granulating device 2 rotates by taking the granulating device as a shaft so as to granulate the high-temperature molten slag;
the granulating device comprises a revolving body baffle 1, wherein the revolving body baffle 1 comprises a first opening and a second opening, and the granulating device 2 is arranged at the first opening;
a movable bed 3, wherein the movable bed 3 is arranged at the second opening, the movable bed 3 rotates by taking the movable bed as a shaft,
and the spiral mechanism 4 is arranged between the revolving body baffle 1 and the movable bed 3, and the spiral mechanism 4 rotates by taking the spiral mechanism 4 as a shaft so as to output the granulated high-temperature molten slag. The slag is granulated by the granulating device 2 to avoid forming slag blocks, and the slag blocks fall to the movable bed 3 through cooling and guiding on the revolving body baffle 1, and the slag granules 6 falling and spreading on the movable bed 3 are continuously output to the next process through the rotation of the spiral mechanism 4, so that the waste heat of the slag is effectively utilized, and the recovery efficiency and the value of the slag are improved.
The method specifically comprises the following steps:
comprises a revolving body baffle 1, a granulating device 2, an annular movable bed 3, a screw mechanism 4, a discharge port 5 and slag particles 6. By passing
The granulating device 2 is positioned in the revolving body baffle 1, slag particles fly out along the radial direction of the granulating device 1, and the height of the uppermost edge of the revolving body baffle 1 is higher than the highest point of the running track of the slag particles. After the slag particles impact the baffle 1 of the revolving body, the slag particles fall downwards onto the annular movable bed 3. The screw mechanism 4 is arranged above the movable bed and below the revolving body baffle 1. The screw mechanism 4 has a certain clearance with the movable bed 3. After the slag particles 6 are accumulated to a certain thickness, the slag particles higher than the certain thickness are output by the rotating spiral mechanism.
When the liquid slag stream falls to a centrifugal granulating device rotating at a high speed, the molten slag is thrown out along the circumferential direction of the centrifugal granulating device and is broken into small slag droplets, and the outer surfaces of the slag droplets are condensed into shells along with gradual cooling, so that high-temperature slag particles 6 with solid outside and molten inside are formed. Then the slag particles 6 fall down after impacting the inner wall of the baffle plate of the revolving body. Because the interior of the slag particles is still molten, the overall temperature is high, the slag particles are easy to adhere to each other or adhere to the baffle plate in the impact process, once the adhesion is formed, the continuous slag particles are further gathered at the adhesion part, and a vicious circle is formed.
The wall surface of the revolving body baffle 1 is a smooth revolving body without obvious bending and concave-convex, so that the slag particles 6 are ensured to continuously fall, and dead angles, which are easy to gather, of the slag particles 6 are avoided. After the slag particles 6 fall to the surface of the movable bed 3, the slag particles are conveyed to the position of the spiral discharging mechanism 4 by the movable bed 3, then conveyed to the discharging port 5 by the spiral mechanism, and then the next production link is carried out. Because the movable bed 4 rotates around the axis, no matter the slag particles fall from the angle, the slag particles all fall onto the movable bed from the circumferential direction of the revolving body baffle, and the whole collecting system has no dead angle due to the rotary conveying of the movable bed. The movable bed is rotating the in-process, also has certain vibrations for difficult adhesion between the sediment grain, and the rotation of screw mechanism constructs, also can play the effect of mechanical breakage to the sediment piece, makes collection system can stably export high temperature sediment grain in succession.
As shown in fig. 3(a), (b), and (c), the angle between the wall surface of the revolving body baffle and the horizontal plane may be set to 90 ° or other degrees. Because the slag particles fall under the action of gravity after impacting the baffle of the revolving body, the slag particles basically do not contact with the wall surface after impacting the wall surface because the wall surface is vertical, and bonding and caking can not occur. The slag particles directly fall on the surface of the circular movable bed. And the included angle between the wall surface of the revolving body baffle and the horizontal plane is 30-150 degrees. Because the slag particles fall under the action of gravity after impacting the revolving body baffle, the larger the included angle between the inner wall of the revolving body baffle and the horizontal plane is, and the more the slag particles cannot contact and collide with the inner wall in the falling process. Therefore, the included angle between the inner wall surface of the revolving body baffle and the horizontal plane can be set according to the characteristics of the centrifugal granulated slag particles. When slag particles are easy to adhere, a large included angle is arranged, and the contact between the slag particles and the wall surface is reduced. When the slag particles are not easy to adhere, a smaller included angle is set, so that the area of the bottom movable bed is reduced.
Furthermore, the length of the spiral part of the spiral mechanism is larger than the width of the annular movable bed, and the rotating direction of the spiral mechanism can be set, so that the slag particles are conveyed to the outer ring or the inner ring. And a conveying mechanism is arranged at the outlet position. Because the slag particles collide with the revolving body baffle in the falling process and the slag particles also collide with each other, the slag particles fall on the position of the movable bed surface and can be paved on the whole bed surface. In order to ensure that all slag particles can be smoothly transported, the length of the spiral part in the spiral mechanism is greater than the width of the movable bed surface, so that all slag particles can be transported out by the spiral mechanism.
Furthermore, the rotating speed of the screw mechanism is adjustable. The screw mechanism is driven by a motor and can be set as a variable frequency motor, so that the rotating speed of the screw mechanism can be adjusted according to the working condition. When the quantity of slag particles is large, the rotating speed of the spiral mechanism can be set to be accelerated, and when the quantity of slag particles is small, the rotating speed of the spiral mechanism is set to be reduced.
Furthermore, the height of the screw mechanism is adjustable. The spiral mechanism is positioned between the revolving body baffle and the annular movable bed. The distance between the bottommost part of the spiral mechanism and the annular movable bed is adjustable, and the distance is 5-100 mm during normal operation. When granulation is just started, the height of the spiral mechanism is properly raised, at the moment, because a gap is reserved between the spiral mechanism and the movable bed surface, granulated slag particles can be accumulated on the bed surface, at the moment, the whole bed surface is cooled, and the slag particles can be completely solidified after heat of the slag particles is absorbed by the movable bed body. When the thickness of the slag particle accumulation layer reaches the lowest position of the screw mechanism, the slag particles fall down to the movable bed, and the slag particles are conveyed to the discharge hole due to the rotation of the screw mechanism. Slag particles which can move freely are arranged between the screw mechanism and the movable bed, so that the movable bed surface can not be damaged due to extrusion caused by the rotation of the screw mechanism.
In order to ensure the cooling effect of slag particles, the revolving body baffle 1 is of a cavity structure, cooling water is introduced into the cavity structure, wall surface heat is taken away by using the cooling water, and meanwhile, the temperature of the cooling water is lower, so that the inner wall surface of the whole revolving body baffle can keep a lower temperature, the inner wall surface becomes a heat absorption source, and the heat of an inner space is taken away, thereby keeping the heat balance inside and avoiding too fast temperature rise.
Furthermore, the screw mechanism 4 is also of a cavity structure, and cooling water is introduced into the screw mechanism, so that the whole screw mechanism is kept at a lower temperature, and the metal piece can keep enough strength at the lower temperature to ensure the service life of the screw blade.
Since the screw mechanism 4 is kept in a rotating state, if the slag particles 6 are adhered and accumulated, the slag becomes a slag lump. When the slag particles pass through the spiral mechanism, the spiral blades rotate and rub against each other with the slag particles 6, so that the slag blocks can be crushed, a continuous and stable slag particle flow with uniform particle size is formed, and the slag particle flow is conveyed to the discharge hole and reaches the next working procedure.
Optionally, the screw mechanism 4 includes a screw and a thread, and the screw extends from the inside to the outside of the revolving body baffle 1.
In order to prevent slag from splashing out of the revolving body baffle 1, the distance between the granulating device 2 and the movable bed 3 is L1, the distance between the first opening and the movable bed 3 is L2, and L1 is not more than L2.
Illustratively, the movable bed 3 is provided with a storage groove, the storage groove is annular, the storage groove comprises a metal material layer 31 and a refractory material layer 32, and the refractory material layer 32 is disposed on the metal material layer 31. The movable bed, the bed surface contacted with the slag particles, can also be made of refractory material, and is supported by a metal structure below the refractory material. Thus, the surface of the movable bed contacted with the slag particles is made of refractory material. After long-term use, the refractory material is subjected to slag particle impact, friction and the like to cause refractory material loss, and can be repaired. The metal material for supporting can be common structural steel, so that the system investment is saved.
Optionally, a discharge port 5 is arranged at one end of the screw rod extending to the revolving body baffle 1, and the slag particles 6 are led out.
Optionally, the baffle 1 comprises a cooling chamber for circulating a fluid 13, the cooling chamber comprising a solid of revolution structure, a fluid 13 inlet 11 and a fluid 13 outlet 12.
Optionally, the fluid 13 outlet 12 is disposed above the fluid 13 inlet 11, and the flowing direction of the fluid 13 is opposite to that of the molten slag, so that the cooling efficiency can be improved.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (8)
1. A high temperature slag collection system, comprising:
the granulating device is arranged at an output port of the high-temperature molten slag, rotates by taking the granulating device as a shaft, and adopts a centrifugal granulating mode to granulate the high-temperature molten slag;
the granulation device comprises a rotating body baffle, a granulation device and a granulation device, wherein the rotating body baffle comprises a first opening and a second opening, and the granulation device is arranged close to the first opening;
a movable bed arranged below the second opening and rotating by taking the movable bed as a shaft,
the spiral mechanism is arranged between the revolving body baffle and the movable bed, and rotates by taking the spiral mechanism as a shaft, so that the granulated high-temperature molten slag is output.
2. The hot slag collection system of claim 1, wherein the screw mechanism comprises a screw and a flight, the screw extending from an interior to an exterior of the solid of revolution barrier.
3. The hot slag collection system of claim 1, wherein the distance between the granulation device and the active bed is L1, the distance between the first opening and the active bed is L2, and L1 ≦ L2.
4. The system according to claim 1, wherein the movable bed is provided with a storage trough, and the storage trough is annular.
5. The hot slag collection system of claim 4, wherein the storage tank includes a layer of metallic material thereon and a layer of refractory material thereon, the layer of refractory material being disposed over the layer of metallic material.
6. The hot slag collection system of claim 2, wherein an outlet is provided at an end of the screw extending to the baffle.
7. The hot slag collection system of claim 1, wherein the solid of revolution baffle comprises a cooling chamber for circulating a fluid, the cooling chamber comprising a solid of revolution structure, a fluid inlet, and a fluid outlet.
8. The hot slag collection system of claim 7, wherein the fluid outlet is disposed above the fluid inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210261447.9A CN114653303A (en) | 2022-03-16 | 2022-03-16 | High-temperature slag collecting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210261447.9A CN114653303A (en) | 2022-03-16 | 2022-03-16 | High-temperature slag collecting system |
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| CN114653303A true CN114653303A (en) | 2022-06-24 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008115041A (en) * | 2006-11-02 | 2008-05-22 | Central Res Inst Of Electric Power Ind | Granulating method of molten slag and granulating device of molten slag |
| CN102925599A (en) * | 2012-10-23 | 2013-02-13 | 鞍钢股份有限公司 | Recycling device and method for sensible heat of blast furnace slag |
| CN203360394U (en) * | 2013-03-06 | 2013-12-25 | 圣火科技(河南)有限责任公司 | Coal gasification device utilizing waste heat of high-temperature molten slag |
| CN103924012A (en) * | 2014-05-05 | 2014-07-16 | 重庆大学 | Device and method for recovering residual heat by dry-process granulation of metallurgical slag |
| CN111270026A (en) * | 2020-02-04 | 2020-06-12 | 北京科技大学 | Blast furnace slag dry type waste heat recovery system and method |
-
2022
- 2022-03-16 CN CN202210261447.9A patent/CN114653303A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008115041A (en) * | 2006-11-02 | 2008-05-22 | Central Res Inst Of Electric Power Ind | Granulating method of molten slag and granulating device of molten slag |
| CN102925599A (en) * | 2012-10-23 | 2013-02-13 | 鞍钢股份有限公司 | Recycling device and method for sensible heat of blast furnace slag |
| CN203360394U (en) * | 2013-03-06 | 2013-12-25 | 圣火科技(河南)有限责任公司 | Coal gasification device utilizing waste heat of high-temperature molten slag |
| CN103924012A (en) * | 2014-05-05 | 2014-07-16 | 重庆大学 | Device and method for recovering residual heat by dry-process granulation of metallurgical slag |
| CN111270026A (en) * | 2020-02-04 | 2020-06-12 | 北京科技大学 | Blast furnace slag dry type waste heat recovery system and method |
Non-Patent Citations (1)
| Title |
|---|
| （苏）古尔芬凯尔（М.А.ГУРФИНКЕЛЬ）: "化学工业装卸工作机械化", 冶金工业出版社, pages: 37 - 38 * |
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