CN215810255U - High-temperature solid metallurgy slag particle waste heat recovery device - Google Patents
High-temperature solid metallurgy slag particle waste heat recovery device Download PDFInfo
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- CN215810255U CN215810255U CN202120789109.3U CN202120789109U CN215810255U CN 215810255 U CN215810255 U CN 215810255U CN 202120789109 U CN202120789109 U CN 202120789109U CN 215810255 U CN215810255 U CN 215810255U
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Abstract
The utility model relates to a high-temperature solid metallurgy slag particle waste heat recovery device, which is provided with a cylinder; a heat exchange tube group is arranged in the cylinder body; the upper end of the cylinder body is provided with a slag inlet for high-temperature solid metallurgical slag particles to enter, and the lower end of the cylinder body is provided with a slag discharge port for high-temperature solid metallurgical slag particles to discharge; the inlet and the outlet of the heat exchange tube set are both arranged on the cylinder body; a baffle group is also arranged in the cylinder body; the baffle group comprises a plurality of baffles which are arranged in a broken line from the slag inlet to the slag outlet; the baffle group and the inner wall of the cylinder form a broken line channel for high-temperature solid metallurgical slag particles to flow from the slag inlet to the slag outlet; the heat exchange tube set penetrates through the baffle plate set. The utility model can be used in cooperation with a granulator for high-temperature solid metallurgical slag particles, and realizes the requirement and effect of continuously absorbing the waste heat of the high-temperature solid metallurgical slag particles. Meanwhile, the device is convenient to disassemble and assemble and convenient to maintain the interior of the device.
Description
Technical Field
The utility model relates to the field of waste heat recovery, in particular to a high-temperature solid metallurgy slag particle waste heat recovery device.
Background
The recovery rate of the waste heat of the high-temperature metallurgical slag in the steel industry in China is less than 26 percent, and the sensible heat recovery rate of various molten slag is only 1.6 percent. With the increasing aggravation of the energy bottleneck problem, the development of the high-temperature slag waste heat high-efficiency recycling and utilizing technology becomes one of the important energy-saving tasks in the future years in the steel industry in China. At present, the method for utilizing the waste heat of high-temperature solid metallurgical slag particles comprises the following steps: (1) the fluidized bed mode is used, air and slag particles are directly contacted for heat exchange, but the method has low operation elasticity, the upward flowing speed of gas can only be changed within a narrow range for specific solid particles, otherwise, the solid is not blown away or blown up, and the volume of the equipment is generally larger; (2) in the form of a fixed bed, the method has poor heat transfer and low heat exchange efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a device for recovering waste heat of high-temperature solid metallurgical slag particles, which can be matched with a granulator of the high-temperature solid metallurgical slag particles for use, and realizes the requirement and effect of continuously absorbing the waste heat of the high-temperature solid metallurgical slag particles. Meanwhile, the device is convenient to disassemble and assemble and convenient to maintain the interior of the device.
The technical scheme for realizing the purpose of the utility model is as follows: the utility model has a cylinder body; a heat exchange tube group is arranged in the cylinder body; the upper end of the cylinder body is provided with a slag inlet for high-temperature solid metallurgical slag particles to enter, and the lower end of the cylinder body is provided with a slag discharge port for high-temperature solid metallurgical slag particles to discharge; the inlet and the outlet of the heat exchange tube set are both arranged on the cylinder body; a baffle group is also arranged in the cylinder body; the baffle group comprises a plurality of baffles which are arranged in a broken line from the slag inlet to the slag outlet; the baffle group and the inner wall of the cylinder form a broken line channel for high-temperature solid metallurgical slag particles to flow from the slag inlet to the slag outlet; the heat exchange tube set penetrates through the baffle plate set.
The cylinder comprises a tube pass cylinder and a shell pass cylinder; the slag inlet is arranged at the upper end of the shell pass cylinder, and the slag discharge port is arranged at the lower end of the shell pass cylinder; the tube pass cylinder comprises a tubular body, one end of the tubular body is fixedly provided with a sealing head, and the other end of the tubular body without the sealing head is provided with a first connecting flange; the heat exchange tube group comprises a plurality of U-shaped heat exchange tubes; two ends of the U-shaped heat exchange tube are arranged on the tube plate, and a second connecting flange is arranged on the tube plate; a split-range partition plate is arranged in the tubular body; the lower end of the shell side cylinder body is provided with a third connecting flange; the first connecting flange, the second connecting flange and the third connecting flange are fixedly connected together through bolts; after the first connecting flange is fixedly connected with the second connecting flange, the tube pass cylinder is divided into a chamber inlet chamber and a chamber outlet chamber after the pass partition plate is attached to the tube plate; one end of each U-shaped heat exchange tube is communicated with the inlet cavity, and the other end of each U-shaped heat exchange tube is communicated with the outlet cavity; the tube pass cylinder is provided with an inlet and an outlet.
The baffle plate is fixedly connected with the heat exchange tube group.
The outer surface of the heat exchange tube set is coated with a wear-resistant coating.
The two ends of the U-shaped heat exchange tube are welded and sealed with the tube plate.
Through holes are uniformly distributed on the baffle plate. So that the metallurgical slag particles can stay on the baffle for a longer time.
The baffle plate at the top end of the baffle plate group is naturally connected with the slag inlet and extends, and is inclined downwards; the baffle plate at the tail end of the baffle plate group is naturally connected and extended with the slag discharge port.
The utility model has the positive effects that: (1) according to the utility model, the retention time and the stroke of high-temperature solid metallurgical slag particles in the cylinder can be realized through the baffle group, so that the heat exchange time is prolonged, and the heat exchange efficiency is improved.
(2) The utility model can be used in cooperation with a granulator for high-temperature solid metallurgical slag particles, and realizes the requirement and effect of continuously absorbing the waste heat of the high-temperature solid metallurgical slag particles. The high-temperature solid metallurgical slag particles discharged by the granulator can be directly discharged from the slag inlet, and the heat exchange process can be completed after the high-temperature solid metallurgical slag particles continuously pass through the baffling channel and are discharged from the slag outlet.
(3) The utility model adopts detachable installation, and is convenient to detach and maintain when the material is blocked.
(4) Because the feeding temperature of the metallurgical slag particles is very high, the heat exchange tube has larger thermal expansion deformation, and the tail end of the U-shaped heat exchange tube can float freely, so that the temperature difference stress can be released well.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings, in which
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded schematic view of the present invention;
FIG. 3 is a schematic structural view of a tube pass cylinder according to the present invention;
FIG. 4 is a schematic view of the baffle plate of the present invention.
Detailed Description
Referring to fig. 1 to 4, the present invention has a tube-side cylinder 5 and a shell-side cylinder 6; the upper end of the shell side cylinder 6 is provided with a slag inlet 2 for high-temperature solid metallurgical slag particles to enter, and the lower end of the shell side cylinder 6 is provided with a slag discharge port 3 for high-temperature solid metallurgical slag particles to discharge; the tube pass cylinder 5 comprises a tubular body 52, one end of the tubular body 52 is fixedly provided with a sealing head 51, and one end, without the sealing head 51, of the tubular body 52 is provided with a first connecting flange 53;
also has a heat exchange tube group 1; the heat exchange tube group 1 comprises a plurality of U-shaped heat exchange tubes; two ends of the U-shaped heat exchange tube are arranged on the tube plate 7, and a second connecting flange 71 is arranged on the tube plate 7; a split-range partition plate 54 is arranged in the tubular body 52; the lower end of the shell pass cylinder 6 is provided with a third connecting flange 61; the first connecting flange 53, the second connecting flange 71 and the third connecting flange 61 are fixedly connected together through bolts; after the first connecting flange 53 is fixedly connected with the second connecting flange 71, the tube pass cylinder 5 is divided into an inlet chamber 55 and an outlet chamber 56 after the pass partition plate 54 is attached to the tube plate 7; one end of each U-shaped heat exchange tube is communicated with the inlet cavity 55, and the other end of each U-shaped heat exchange tube is communicated with the outlet cavity 56; the tube pass cylinder 5 is provided with an inlet 57 and an outlet 58.
The heat exchange tube group 1 is positioned in the shell-side cylinder 6; a baffle group 4 is fixedly arranged on the heat exchange tube group 1; the baffle group 4 comprises a plurality of baffle plates 41 which are arranged in a broken line from the slag inlet 2 to the slag outlet 3; the baffle group 4 and the inner wall of the cylinder form a broken line channel for high-temperature solid metallurgical slag particles to flow from the slag inlet 2 to the slag outlet 3; the heat exchange tube set 1 penetrates through the baffle set 4.
The baffle plate 41 at the top end of the baffle plate group 4 is naturally connected with and extends from the slag inlet 2 and is inclined downwards; the baffle plate 41 at the tail end of the baffle plate group 4 is naturally connected and extended with the slag discharge port 3.
The outer surface of the heat exchange tube set 1 is coated with a wear-resistant coating.
And two ends of the U-shaped heat exchange tube are welded and sealed with the tube plate 7.
Through holes 411 are uniformly distributed on the baffle plate 41.
The working process of the utility model is as follows:
high-temperature solid metallurgical slag particles enter from the slag inlet 2 and continuously flow to the slag outlet 3 along the baffling channel under the action of gravity, and molten salt in the heat exchange tube set 1 can take away heat in the flowing process. Meanwhile, the utility model can design the size according to the granulation speed of the granulator, and the granulation speed is matched with the heat exchange speed to play the effect of continuous heat exchange.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A high-temperature solid metallurgy slag particle waste heat recovery device is provided with a cylinder body; the method is characterized in that: a heat exchange tube group (1) is arranged in the cylinder body; the upper end of the cylinder body is provided with a slag inlet (2) for high-temperature solid metallurgical slag particles to enter, and the lower end of the cylinder body is provided with a slag discharge port (3) for high-temperature solid metallurgical slag particles to discharge; the inlet and the outlet of the heat exchange tube set (1) are both arranged on the cylinder body; a baffle group (4) is also arranged in the cylinder body; the baffle group (4) comprises a plurality of baffles (41) which are arranged in a broken line from the slag inlet (2) to the slag outlet (3); the baffle group (4) and the inner wall of the cylinder form a broken line channel for high-temperature solid metallurgical slag particles to flow from the slag inlet (2) to the slag outlet (3); the heat exchange tube set (1) penetrates through the baffle plate set (4).
2. The device for recovering the waste heat of the high-temperature solid metallurgical slag particles as claimed in claim 1, wherein: the cylinder comprises a tube-side cylinder (5) and a shell-side cylinder (6); the slag inlet (2) is arranged at the upper end of the shell pass cylinder (6), and the slag discharge port (3) is arranged at the lower end of the shell pass cylinder (6); the tube pass cylinder (5) comprises a tubular body (52) with one end fixedly provided with a seal head (51), and one end, without the seal head (51), of the tubular body (52) is provided with a first connecting flange (53); the heat exchange tube group (1) comprises a plurality of U-shaped heat exchange tubes; two ends of the U-shaped heat exchange tube are arranged on the tube plate (7), and a second connecting flange (71) is arranged on the tube plate (7); a split-range partition plate (54) is arranged in the tubular body (52); the lower end of the shell side cylinder (6) is provided with a third connecting flange (61); the first connecting flange (53), the second connecting flange (71) and the third connecting flange (61) are fixedly connected together through bolts; after the first connecting flange (53) is fixedly connected with the second connecting flange (71), the tube pass cylinder (5) is divided into a chamber inlet (55) and a chamber outlet (56) after the pass partition plate (54) is attached to the tube plate (7); one end of each U-shaped heat exchange tube is communicated with the inlet chamber (55), and the other end of each U-shaped heat exchange tube is communicated with the outlet chamber (56); the tube pass cylinder (5) is provided with an inlet (57) and an outlet (58).
3. The device for recovering the waste heat of the high-temperature solid metallurgical slag particles as claimed in claim 1 or 2, wherein: the baffle plate (41) is fixedly connected with the heat exchange tube set (1).
4. The device for recovering the waste heat of the high-temperature solid metallurgical slag particles as claimed in claim 1 or 2, wherein: the outer surface of the heat exchange tube set (1) is coated with a wear-resistant coating.
5. The high-temperature solid metallurgy slag particle waste heat recovery device according to claim 2, is characterized in that: and two ends of the U-shaped heat exchange tube are welded and sealed with the tube plate (7).
6. The device for recovering the waste heat of the high-temperature solid metallurgical slag particles as claimed in claim 1, 2 or 5, wherein: through holes (411) are uniformly distributed on the baffle plate (41).
7. The device for recovering the waste heat of the high-temperature solid metallurgical slag particles as claimed in claim 1, 2 or 5, wherein: the baffle plate (41) at the top end of the baffle plate group (4) is naturally connected with and extends from the slag inlet (2) and is inclined downwards; the baffle plate (41) at the tail end of the baffle plate group (4) is naturally connected and extended with the slag discharge port (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120789109.3U CN215810255U (en) | 2021-04-19 | 2021-04-19 | High-temperature solid metallurgy slag particle waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120789109.3U CN215810255U (en) | 2021-04-19 | 2021-04-19 | High-temperature solid metallurgy slag particle waste heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215810255U true CN215810255U (en) | 2022-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120789109.3U Active CN215810255U (en) | 2021-04-19 | 2021-04-19 | High-temperature solid metallurgy slag particle waste heat recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215810255U (en) |
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2021
- 2021-04-19 CN CN202120789109.3U patent/CN215810255U/en active Active
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