CN210892732U - Internal heat preservation device for gas collecting hood of sintering circular cooler - Google Patents
Internal heat preservation device for gas collecting hood of sintering circular cooler Download PDFInfo
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- CN210892732U CN210892732U CN201921627964.3U CN201921627964U CN210892732U CN 210892732 U CN210892732 U CN 210892732U CN 201921627964 U CN201921627964 U CN 201921627964U CN 210892732 U CN210892732 U CN 210892732U
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- gas collecting
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- heat preservation
- collecting hood
- guard plate
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Abstract
The utility model relates to a heat preservation device in cold quick-witted gas collecting channel of sintered ring belongs to the cold quick-witted technical field of sintered ring. The technical scheme is as follows: top backplate (5) and side backplate (6) are fixed top and side in gas collecting channel (1) through bolt (7) respectively, all are equipped with backup pad (3) and heat preservation (2) that polylith parallel arrangement between top backplate (5) and gas collecting channel (1) and between side backplate (6) and gas collecting channel (1), be equipped with between backup pad (3) and side backplate (6) between side backplate (6) and gas collecting channel (1) and support gusset (8), support gusset (8) one right-angle side is fixed on side backplate (6), and another right-angle side is fixed on backup pad (3) between side backplate (6) and gas collecting channel (1). The utility model has the advantages that: the gas collecting hood can be effectively isolated from high-temperature flue gas, the gas collecting hood is prevented from being in a high-temperature state, and the phenomena of high-temperature oxidation corrosion and overlarge thermal expansion of the gas collecting hood are avoided.
Description
Technical Field
The utility model relates to a heat preservation device in cold quick-witted gas collecting channel of sintered ring belongs to the cold quick-witted technical field of sintered ring.
Background
The ring cooler is called a ring cooler in its entirety, and functions to cool hot sinter discharged from the sintering machine. In the sintering production process, the roasted hot sintering ore is uniformly spread on the circular cooler trolley through the discharging system, the cooling air exchanges heat with the sintering ore to cool the sintering ore, and the cooling air is heated into hot flue gas. In order to fully utilize the waste heat of the sintering ore, a waste heat boiler of a circular cooler is generally configured in the sintering industry, and hot flue gas at a high-temperature section (generally a first section and a second section of the circular cooler) is collected and introduced into the waste heat boiler to exchange heat with water, so that steam is generated to be used for production or drive a steam turbine set.
In order to effectively collect hot flue gas at the high-temperature section of the circular cooler, a gas collecting hood is arranged above a trolley at the high-temperature section of the circular cooler and is made of common carbon steel. In the normal operation process of the ring cooling machine, the temperature of hot sintering ore on the trolley at the high temperature section is 700-800 ℃, the temperature of hot flue gas after heat exchange can reach 550-600 ℃, and the temperature of the wall surface of the gas collecting hood reaches 500-550 ℃. The upper limit of the high-temperature oxidation resistance temperature of common carbon steel is 530 ℃, and the temperature of the wall surface of the gas-collecting hood reaches or exceeds the upper limit of the high-temperature oxidation resistance temperature corresponding to the material of the gas-collecting hood, so that the phenomenon of large-area oxidation corrosion occurs in a short time, and the safety of the structure of the gas-collecting hood is seriously threatened. Meanwhile, as the temperature of the gas collecting hood body is overhigh, the thermal expansion is large, the expansion amount exceeds 0.6 percent, and the local distortion and deformation occur at the joint of the gas collecting hood, the high-temperature hot flue gas is leaked outwards, and the safe operation of peripheral equipment facilities is greatly influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a heat preservation device in cold quick-witted gas collecting channel of sintered ring can make the gas collecting channel effectively keep apart with high temperature flue gas, prevents that the gas collecting channel from being in the high temperature state, avoids the gas collecting channel to take place the too big phenomenon of high temperature oxidation corrosion and thermal energy, solves the problem that exists among the background art.
The technical scheme of the utility model is that:
the utility model provides a heat preservation device in cold quick-witted gas collecting channel of sintered ring, the gas collecting channel hangs in the top of the cold quick-witted high temperature section platform truck of sintered ring through the lug, and heat preservation device contains heat preservation, backup pad, top backplate, side guard plate, bolt and support rib plate in the gas collecting channel, and top backplate and side guard plate pass through the top and the side of bolt fastening in the gas collecting channel respectively, all are equipped with polylith parallel arrangement's backup pad and heat preservation between top backplate and the gas collecting channel and between side guard plate and the gas collecting channel, be equipped with support rib plate between backup pad between side guard plate and the gas collecting channel and the side guard plate, support rib plate is the right angled triangle structure, and a right angle limit of support rib plate is fixed on the side guard plate, and another right angle limit of support rib plate is.
And the heat-insulating layers between the top guard plate and the gas-collecting hood and between the side guard plate and the gas-collecting hood are high-temperature-resistant aluminum silicate refractory fiber felts.
The top guard plate and the side guard plate are formed by splicing a plurality of rectangular plates, and the length of each rectangular plate is matched with the corresponding gas collecting hood.
And bolt holes matched with the bolts are formed in the top protection plate and the side protection plate.
Bolt holes in the top guard plate and the side guard plate are rectangular holes.
The bolt is a long rod with an elbow at one end, and the end with the elbow is arranged in the heat-insulating layer.
The utility model has the advantages that: the gas collecting hood of the circular cooler can be isolated from high-temperature flue gas, the gas collecting hood is prevented from being in a high-temperature state due to the fact that the gas collecting hood is in direct contact with the high-temperature flue gas, and the phenomena of high-temperature oxidation reaction and overlarge thermal expansion of the gas collecting hood under the action of the high-temperature flue gas are effectively avoided; the top guard plate and the side guard plate are formed by splicing a plurality of rectangular plates, so that free expansion is realized, and stable operation of the gas collecting hood is ensured.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the skirt;
FIG. 3 is a left side view of the side guard;
fig. 4 is a schematic view of a bolt.
In the figure: the gas collecting channel 1, the heat preservation layer 2, the supporting plate 3, the lifting lug 4, the top guard plate 5, the side guard plate 6, the bolt 7, the supporting rib plate 8 and the bolt hole 9.
Detailed Description
The invention will be further explained by way of example with reference to the accompanying drawings.
Referring to the attached drawings 1-4, a gas collecting hood internal heat preservation device of a sintering ring cooler, a gas collecting hood 1 is hung above a trolley at the high-temperature section of the sintering ring cooler through a lifting lug 4, the gas collecting hood internal heat preservation device comprises a heat preservation layer 2, a support plate 3, a top protection plate 5, a side protection plate 6, a bolt 7 and a support rib plate 8, the top protection plate 5 and the side protection plate 6 are respectively fixed at the top and the side in the gas collecting hood 1 through the bolt 7, a plurality of support plates 3 and heat preservation layers 2 which are arranged in parallel are respectively arranged between the top protection plate 5 and the gas collecting hood 1 and between the side protection plate 6 and the gas collecting hood, a supporting rib plate 8 is arranged between the supporting plate 3 and the side guard plate 6 between the side guard plate 6 and the air collecting cover 1, the supporting rib plate 8 is of a right-angled triangle structure, one right-angled edge of the supporting rib plate 8 is fixed on the side guard plate 6, and the other right-angled edge of the supporting rib plate 8 is fixed on the supporting plate 3 between the side guard plate 6 and the gas collecting cover 1.
In the embodiment, referring to the attached fig. 1-4, the gas collecting hood 1 is of a common carbon steel structure and is suspended above the trolley at the high-temperature section of the sintering circular cooler through the lifting lugs 4.
The top guard plate 5 and the side guard plate 6 are formed by mutually overlapping a plurality of standard templates and are not fixed with each other, so that the standard templates can be free to thermally expand. The standard template is formed by cutting a pipe from a heat-resistant stainless steel plate, the width of the standard template is about 1000mm, and the length of the standard template is matched with the size of the gas-collecting hood 1.
Referring to fig. 2 and 3, the top guard plate 5 and the side guard plate 6 are provided with a plurality of rectangular holes 9, and the width, the hole pitch and the number of the rectangular holes are matched with those of the bolts 7 welded on the gas collecting channel 1.
Referring to the attached figure 4, the bolt 7 is a long rod, one end of the bolt is provided with an elbow, one end of the elbow is arranged in the heat preservation layer 2, and the heat preservation layer 2 is made of high-temperature-resistant aluminum silicate refractory fiber felt and filled in gaps among the gas collecting hood 1, the top protection plate 5 and the side protection plate 6.
Claims (6)
1. The utility model provides a heat preservation device in cold quick-witted gas collecting channel of sintered ring, gas collecting channel (1) hangs the top at the cold quick-witted high temperature section platform truck of sintered ring through lug (4), its characterized in that: the heat preservation device in the gas collecting hood comprises a heat preservation layer (2), a support plate (3), a top protection plate (5), a side protection plate (6), a bolt (7) and a support rib plate (8), wherein the top protection plate (5) and the side protection plate (6) are respectively fixed on the top and the side in the gas collecting hood (1) through the bolt (7), a plurality of parallel support plates (3) and heat preservation layers (2) are respectively arranged between the top protection plate (5) and the gas collecting hood (1) and between the side protection plate (6) and the gas collecting hood (1), a supporting rib plate (8) is arranged between the supporting plate (3) between the side guard plate (6) and the air collecting cover (1) and the side guard plate (6), the support rib plate (8) is of a right-angled triangle structure, one right-angled edge of the support rib plate (8) is fixed on the side guard plate (6), and the other right-angled edge of the support rib plate (8) is fixed on the support plate (3) between the side guard plate (6) and the gas collecting cover (1).
2. The internal heat preservation device of the gas collecting hood of the sintering ring cooler as recited in claim 1, characterized in that: and the heat-insulating layers (2) between the top protection plate (5) and the gas collection cover (1) and between the side protection plate (6) and the gas collection cover (1) are high-temperature-resistant aluminum silicate refractory fiber felts.
3. The internal heat preservation device of the gas collecting hood of the sintering ring cooler as recited in claim 1, characterized in that: the top guard plate (5) and the side guard plate (6) are formed by splicing a plurality of rectangular plates, and the length of each rectangular plate is matched with that of the gas collecting hood (1).
4. The internal heat preservation device of the gas collecting hood of the sintering ring cooler as recited in claim 1, characterized in that: and the top guard plate (5) and the side guard plate (6) are respectively provided with a bolt hole (9) matched with the bolt (7).
5. The internal heat preservation device of the gas collecting hood of the sintering ring cooler as recited in claim 4, characterized in that: bolt holes (9) on the top guard plate (5) and the side guard plate (6) are rectangular holes.
6. The internal heat preservation device of the gas collecting hood of the sintering ring cooler as recited in claim 1, characterized in that: the bolt (7) is a long rod with an elbow at one end, and the end with the elbow is arranged in the heat preservation layer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921627964.3U CN210892732U (en) | 2019-09-27 | 2019-09-27 | Internal heat preservation device for gas collecting hood of sintering circular cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921627964.3U CN210892732U (en) | 2019-09-27 | 2019-09-27 | Internal heat preservation device for gas collecting hood of sintering circular cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210892732U true CN210892732U (en) | 2020-06-30 |
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ID=71332269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921627964.3U Active CN210892732U (en) | 2019-09-27 | 2019-09-27 | Internal heat preservation device for gas collecting hood of sintering circular cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210892732U (en) |
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2019
- 2019-09-27 CN CN201921627964.3U patent/CN210892732U/en active Active
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