CN115354092B - Device and method for collecting and conveying high-temperature bulk materials - Google Patents
Device and method for collecting and conveying high-temperature bulk materials Download PDFInfo
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- CN115354092B CN115354092B CN202211109741.4A CN202211109741A CN115354092B CN 115354092 B CN115354092 B CN 115354092B CN 202211109741 A CN202211109741 A CN 202211109741A CN 115354092 B CN115354092 B CN 115354092B
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- receiving
- annular water
- temperature bulk
- receiving device
- cooled wall
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- 239000000463 material Substances 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000013590 bulk material Substances 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 239000002893 slag Substances 0.000 claims description 25
- 239000007788 liquid Substances 0.000 claims description 15
- 230000003139 buffering effect Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 239000002918 waste heat Substances 0.000 abstract description 10
- 239000002245 particle Substances 0.000 abstract description 7
- 238000011084 recovery Methods 0.000 abstract description 7
- 230000005284 excitation Effects 0.000 abstract description 2
- 238000009270 solid waste treatment Methods 0.000 abstract description 2
- 238000005469 granulation Methods 0.000 description 5
- 230000003179 granulation Effects 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004017 vitrification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
- C21B3/08—Cooling slag
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/02—Physical or chemical treatment of slags
- C21B2400/034—Stirring or agitating by pressurised fluids or by moving apparatus
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/05—Apparatus features
- C21B2400/052—Apparatus features including rotating parts
- C21B2400/054—Disc-shaped or conical parts for cooling, dispersing or atomising of molten slag rotating along vertical axis
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/05—Apparatus features
- C21B2400/06—Conveyors on which slag is cooled
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/08—Treatment of slags originating from iron or steel processes with energy recovery
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
Abstract
The invention belongs to the field of solid waste treatment, and relates to a device and a method for collecting and conveying high-temperature bulk materials, wherein the device comprises a granulating device, an annular water-cooling wall and a receiving device arranged below the annular water-cooling wall; the receiving device is provided with a vibration exciter, and a high Wen Pidai conveyor is arranged at the tail end of the receiving surface of the receiving device, which is close to the annular water-cooled wall. According to the invention, the receiving surface of the receiving device is an inclined surface, the receiving device is driven by the vibration exciter to continuously vibrate, the high-temperature bulk material on the receiving surface also vibrates along with the inclined surface, the high-temperature bulk material also jumps up and down in the direction of moving out of the receiving device, the contact of the high-temperature bulk material with air is accelerated in the process, the high-temperature bulk material continuously dissipates heat to the air and cools down, and particles of the high-temperature bulk material are not bonded together under the action of the excitation force, so that the hardening and bonding of the high-temperature bulk material are avoided, and the stable operation of the whole granulating process and the subsequent waste heat recovery process is ensured.
Description
Technical Field
The invention belongs to the field of solid waste treatment, and relates to a device and a method for collecting and conveying high-temperature bulk materials.
Background
At present, the discharging of metallurgical slag adopts water quenching, hot splashing or direct cooling, so that a large amount of waste heat is wasted. In particular to blast furnace slag in the steel industry, which is the only high-efficiency waste heat which is not recovered in the steel industry. The direct water quenching not only wastes waste heat resources, but also has large water consumption and serious pollution. For this reason, in order to realize waste heat recovery of high-temperature slag, a great deal of dry centrifugal granulation research has been conducted in recent years.
However, in the centrifugal granulation process, how to effectively collect and convey 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, so that the discharging process is influenced, and the cooling speed is reduced after the slag blocks are formed, so that the vitrification rate of the slag particles is influenced. Therefore, the problem that slag particles are easy to harden and adhere in the centrifugal granulating process is solved, and the method is a main factor for ensuring continuous and stable operation of the whole centrifugal granulating system.
Disclosure of Invention
Therefore, the invention aims to provide a device and a method for collecting and conveying high-temperature bulk materials, which can effectively recover the high-temperature bulk materials generated by centrifugal granulation, solve the problem that the high-temperature bulk materials are easy to harden and adhere, and ensure continuous and stable operation of the whole slag granulation and waste heat recovery system.
In order to achieve the above purpose, the present invention provides the following technical solutions: the device comprises a granulating device, an annular water-cooled wall arranged at the periphery of the granulating device and a receiving device arranged below the annular water-cooled wall; the receiving device is provided with a vibration exciter, and a high Wen Pidai conveyor is arranged at the tail end of the receiving surface of the receiving device, which is close to the annular water-cooled wall.
Optionally, two receiving devices are arranged below the annular water-cooled wall, and the width of the receiving surface of the two receiving devices is larger than the diameter of the bottom of the annular water-cooled wall.
Alternatively, the two receiving devices are symmetrically arranged below the annular water-cooled wall, a gap is arranged at the parallel connection part, and two inverted V-shaped dispensers are arranged at the inner cavity of the annular water-cooled wall right above the gap.
Alternatively, the receiving surface of the receiving device is designed as an inclined surface inclined towards the direction of the high Wen Pidai conveyor.
Optionally, a supporting spring is arranged at the lower part of the receiving device and is used for buffering the impact of the receiving device during vibration.
The method for collecting and conveying the high-temperature bulk materials comprises the following steps of:
s1, flowing a liquid slag stream into a granulating device from above, rotating the granulating device at a proper rotating speed, enabling the liquid slag to become liquid drops to fly along a path tangential to the rotating direction of the granulating device to contact with the inner wall of an outer ring of an annular water-cooled wall under the action of centrifugal force, cooling the liquid slag drops in the process of flying and contacting with the annular water-cooled wall, forming a crust on the surface of the liquid slag drops, and forming a high-temperature bulk material in a molten state inside;
s2, under the action of gravity, the high-temperature bulk materials fall to a receiving surface of the receiving device along the inner wall of the outer ring of the annular water-cooled wall;
s3, the vibration exciter on the receiving device drives the receiving device to continuously vibrate at the moment, and as the receiving surface of the receiving device is an inclined surface, the high-temperature bulk materials on the receiving surface vibrate along with the receiving surface and finally move to the high Wen Pidai conveyor to be conveyed to enter the next working procedure.
Optionally, in step S2, the high-temperature bulk material flows back along the inverted V-shaped distributor in the inner cavity of the annular water-cooled wall and falls into the two receiving devices instead of falling into the gap at the joint of the two receiving devices.
The invention has the beneficial effects that: according to the device and the method for collecting and conveying the high-temperature bulk materials, the receiving surface of the receiving device is an inclined surface, the receiving device is driven by the vibration exciter to continuously vibrate, the high-temperature bulk materials on the receiving surface vibrate along with the inclined surface, the high-temperature bulk materials move in the direction of discharging the receiving device and jump up and down at extremely high frequency, the contact of the high-temperature bulk materials with air is accelerated in the process, the high-temperature bulk materials continuously dissipate heat and cool to the air, and the particles of the high-temperature bulk materials are not bonded together under the action of the excitation force, so that the bonding of the high-temperature bulk materials is avoided, the aim of the invention is realized, and the stable operation of the whole granulating process and the subsequent waste heat recovery process is ensured.
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 objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in the following preferred detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a top view of the present invention;
fig. 3 is a cross-sectional view of A-A in fig. 2.
Reference numerals: the granulating device 1, the annular water-cooled wall 2, the distributor 3, the receiving device 4, the vibration exciter 5, the supporting spring 6 and the high Wen Pidai conveyor 7.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present invention by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to limit the invention; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated 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 numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but not for indicating or suggesting that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present invention, and that the specific meaning of the above terms may be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1 to 3, a device for collecting and conveying high-temperature bulk materials includes a granulating device 1, an annular water-cooled wall 2 disposed at the periphery of the granulating device 1, and a receiving device 4 disposed below the annular water-cooled wall 2; the material receiving device 4 is provided with a vibration exciter 5 for driving the material receiving device 4 to vibrate, the material receiving surface tail end of the material receiving device 4 close to the annular water-cooled wall 2 is further provided with a high Wen Pidai conveyor 7, the lower part of the annular water-cooled wall 2 is provided with two material receiving devices 4, the material receiving surface width of the two material receiving devices 4 is larger than the bottom diameter of the annular water-cooled wall 2, the two material receiving devices 4 are symmetrically arranged below the annular water-cooled wall 2, a gap is arranged at the parallel connection part, two inverted V-shaped dispensers 3 are arranged at the inner cavity of the annular water-cooled wall 2 right above the gap, the material receiving surface of the material receiving device 4 is designed to be an inclined surface inclined towards the direction of the high Wen Pidai conveyor 7, and the lower part of the material receiving device 4 is provided with a supporting spring 6 for buffering impact when the material receiving device 4 vibrates.
In this embodiment, the receiving surface is spaced from the lower edge of the annular water-cooled wall 2 by a certain distance, so as to avoid collision with the annular water-cooled wall 2 when the receiving device 4 vibrates up and down.
In this embodiment, the granulating device 1 and the annular water-cooled wall 2 are arranged coaxially, and the projection of the axis on the horizontal plane just falls on the gap.
The method for collecting and conveying the high-temperature bulk materials comprises the following steps of:
s1, flowing a liquid slag stream into a granulating device 1 from above, rotating the granulating device 1 at a proper rotating speed, enabling the liquid slag to become liquid drops to fly along a path tangential to the rotating direction of the granulating device 1 to contact with the inner wall of the outer ring of the annular water-cooled wall 2 under the action of centrifugal force, cooling the liquid slag drops in the process of flying and contacting with the annular water-cooled wall 2, forming crust on the surface of the liquid slag drops, and forming high-temperature bulk materials in a molten state inside;
from the above description, it is clear that the high-temperature bulk material just falling from the annular water-cooled wall 2 to the receiving surface of the receiving device 4 is slag with a hard shell surface and still in a molten state. As the high-temperature bulk materials are accumulated more and more on the receiving surface of the receiving device 4, the slag still in a molten state in the interior releases heat, the temperature of the high-temperature bulk materials rises, the high-temperature bulk materials are hardened and bonded along with the rise of the temperature, slag granulation is failed, and a subsequent waste heat recovery system is difficult to operate;
s2, under the action of gravity, the high-temperature bulk materials flow back along the inverted V-shaped distributor 3 in the inner cavity of the annular water-cooled wall 2 and fall into the gap between the two material receiving devices 4 but not between the two material receiving devices 4;
s3, at the moment, the vibration exciter 5 on the receiving device 4 drives the receiving device 4 to continuously vibrate, and as the receiving surface of the receiving device 4 is an inclined surface, the high-temperature bulk materials on the receiving surface vibrate along with the receiving surface and finally move to the high Wen Pidai conveyor 7 to be conveyed to enter the next process.
According to the invention, the receiving surface of the receiving device 4 is an inclined surface, the receiving device 4 is driven by the vibration exciter 5 to continuously vibrate, the high-temperature bulk materials on the receiving surface vibrate along with the inclined surface, the high-temperature bulk materials are displaced in the direction of discharging the receiving device 4 and jump up and down at extremely fast frequency, the contact of the high-temperature bulk materials with air is accelerated in the process, the high-temperature bulk materials continuously dissipate heat and cool to the air, and the particles of the high-temperature bulk materials are not bonded together under the action of exciting force, so that the hardening and bonding of the high-temperature bulk materials are avoided, the aim of the invention is realized, and the stable operation of the whole granulating process and the subsequent waste heat recovery process is ensured.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.
Claims (4)
1. The utility model provides a device that high temperature bulk material was collected and was carried which characterized in that: the device comprises a granulating device, an annular water-cooling wall arranged at the periphery of the granulating device and a receiving device arranged below the annular water-cooling wall; the receiving device is provided with a vibration exciter, and a high Wen Pidai conveyor is arranged at the tail end of the receiving surface of the receiving device, which is close to the annular water-cooled wall; two receiving devices are arranged below the annular water-cooled wall, and the width of the receiving surfaces of the two receiving devices is larger than the diameter of the bottom of the annular water-cooled wall; the receiving surface of the receiving device is designed to be an inclined surface inclined towards the direction of the high Wen Pidai conveyor; the lower part of the receiving device is provided with a supporting spring for buffering the impact of the receiving device during vibration.
2. The apparatus for collecting and transporting high temperature bulk material as claimed in claim 1, wherein: the two receiving devices are symmetrically arranged below the annular water-cooled wall, a gap is arranged at the parallel connection part, and two inverted V-shaped dispensers are arranged at the inner cavity of the annular water-cooled wall right above the gap.
3. A method for collecting and conveying high-temperature bulk materials, using the device for collecting and conveying high-temperature bulk materials according to claim 1 or 2, comprising the following steps:
s1, flowing a liquid slag stream into a granulating device from above, rotating the granulating device at a proper rotating speed, enabling the liquid slag to become liquid drops to fly along a path tangential to the rotating direction of the granulating device to contact with the inner wall of an outer ring of an annular water-cooled wall under the action of centrifugal force, cooling the liquid slag drops in the process of flying and contacting with the annular water-cooled wall, forming a crust on the surface of the liquid slag drops, and forming a high-temperature bulk material in a molten state inside;
s2, under the action of gravity, the high-temperature bulk materials fall to a receiving surface of the receiving device along the inner wall of the outer ring of the annular water-cooled wall;
s3, the vibration exciter on the receiving device drives the receiving device to continuously vibrate at the moment, and as the receiving surface of the receiving device is an inclined surface, the high-temperature bulk materials on the receiving surface vibrate along with the receiving surface and finally move to the high Wen Pidai conveyor to be conveyed to enter the next working procedure.
4. A method of high temperature bulk material collection and transfer as claimed in claim 3 wherein: in the step S2, the high-temperature bulk materials flow back along the inverted V-shaped distributor in the inner cavity of the annular water-cooled wall and fall into the two material receiving devices but not fall into a gap at the joint of the two material receiving devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211109741.4A CN115354092B (en) | 2022-09-13 | 2022-09-13 | Device and method for collecting and conveying high-temperature bulk materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211109741.4A CN115354092B (en) | 2022-09-13 | 2022-09-13 | Device and method for collecting and conveying high-temperature bulk materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115354092A CN115354092A (en) | 2022-11-18 |
| CN115354092B true CN115354092B (en) | 2023-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211109741.4A Active CN115354092B (en) | 2022-09-13 | 2022-09-13 | Device and method for collecting and conveying high-temperature bulk materials |
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| CN (1) | CN115354092B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116422228A (en) * | 2023-04-19 | 2023-07-14 | 河南太行全利重工股份有限公司 | Vibrating hearth pan and slag granulating furnace with vibrating hearth pan |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8328393D0 (en) * | 1983-10-24 | 1983-11-23 | British Steel Corp | Granulation of slag |
| US4461636A (en) * | 1983-03-17 | 1984-07-24 | Francis Gagneraud | Installation for continuous treatment of molten materials to obtain pelletized products |
| EP0333242A1 (en) * | 1988-03-09 | 1989-09-20 | Norddeutsche Affinerie Ag | Process and apparatus for granulating molten slag |
| JP2005082454A (en) * | 2003-09-09 | 2005-03-31 | Central Res Inst Of Electric Power Ind | Granulating method of molten slag and granulating device of molten slag |
| CN102492793A (en) * | 2011-12-23 | 2012-06-13 | 东北大学 | Granulation apparatus of molten state metallurgy slag |
| CN103757156A (en) * | 2013-12-31 | 2014-04-30 | 河南圣石节能环保工程有限公司 | Centrifuging and granulating device of high-temperature dry-quenching slag |
| CN108728596A (en) * | 2018-07-27 | 2018-11-02 | 马鞍山市双益机械制造有限公司 | A kind of the granulated processed equipment and processing method of liquid steel slag |
| CN111020074A (en) * | 2019-12-04 | 2020-04-17 | 西安交通大学 | Liquid slag waste heat recovery device capable of strengthening slag heat exchange and operation method thereof |
| CN218372359U (en) * | 2022-09-13 | 2023-01-24 | 重庆赛迪热工环保工程技术有限公司 | Device for collecting and conveying high-temperature bulk materials |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202658169U (en) * | 2012-05-31 | 2013-01-09 | 四川川润股份有限公司 | Modular blast-furnace slag dry-method pelletizing cooling device |
-
2022
- 2022-09-13 CN CN202211109741.4A patent/CN115354092B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4461636A (en) * | 1983-03-17 | 1984-07-24 | Francis Gagneraud | Installation for continuous treatment of molten materials to obtain pelletized products |
| GB8328393D0 (en) * | 1983-10-24 | 1983-11-23 | British Steel Corp | Granulation of slag |
| EP0333242A1 (en) * | 1988-03-09 | 1989-09-20 | Norddeutsche Affinerie Ag | Process and apparatus for granulating molten slag |
| JP2005082454A (en) * | 2003-09-09 | 2005-03-31 | Central Res Inst Of Electric Power Ind | Granulating method of molten slag and granulating device of molten slag |
| CN102492793A (en) * | 2011-12-23 | 2012-06-13 | 东北大学 | Granulation apparatus of molten state metallurgy slag |
| CN103757156A (en) * | 2013-12-31 | 2014-04-30 | 河南圣石节能环保工程有限公司 | Centrifuging and granulating device of high-temperature dry-quenching slag |
| CN108728596A (en) * | 2018-07-27 | 2018-11-02 | 马鞍山市双益机械制造有限公司 | A kind of the granulated processed equipment and processing method of liquid steel slag |
| CN111020074A (en) * | 2019-12-04 | 2020-04-17 | 西安交通大学 | Liquid slag waste heat recovery device capable of strengthening slag heat exchange and operation method thereof |
| CN218372359U (en) * | 2022-09-13 | 2023-01-24 | 重庆赛迪热工环保工程技术有限公司 | Device for collecting and conveying high-temperature bulk materials |
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| CN115354092A (en) | 2022-11-18 |
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