CN213515124U - Sintering hot air ignition structure - Google Patents
Sintering hot air ignition structure Download PDFInfo
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- CN213515124U CN213515124U CN202021156958.7U CN202021156958U CN213515124U CN 213515124 U CN213515124 U CN 213515124U CN 202021156958 U CN202021156958 U CN 202021156958U CN 213515124 U CN213515124 U CN 213515124U
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Abstract
The utility model discloses a hot-blast ignition structure of sintering, including sintering machine ignition furnace, combustion-supporting air duct and ignition furnace heat preservation section, combustion-supporting air duct intercommunication sintering machine ignition furnace, sintering machine ignition furnace intercommunication ignition furnace heat preservation section. The utility model discloses under the unchangeable condition of sintering machine ignition furnace structure and combustion-supporting fan technical parameter, increase the pipeline and lead to the ignition furnace heat preservation section, utilize the ignition furnace waste heat to heat, can improve combustion-supporting wind temperature about 30 degrees, it is especially obvious winter.
Description
Technical Field
The utility model belongs to the sintering machine field, concretely relates to hot-blast ignition structure of sintering.
Background
Sintering of the sinter is carried out by means of combustion of fuel therein. The igniter heats the surface layer of the sintering material to be higher than the ignition point of the fuel (about 700 ℃), and then the exhaust fan exhausts air to ensure that the sintering process is carried out downwards; the ignition temperature not only affects the surface strength, but also affects the lower sinter strength. The ignition temperature is too low, the heat accumulated by the surface sintering material is too little, and the condition of sufficient ignition is not enough to create a lower layer, so that the material layer can not reach the sintering temperature; the ignition temperature is proper, and the highest temperature of the material layer rises along the height direction of the material layer until the sintering temperature is reached; if the ignition temperature is too high, the drum strength will continue to be improved, but the surface layer sinter is over-melted, the FeO in the sinter is too high, and the reduction performance is deteriorated. The ignition time is determined by the length of the igniter and the speed of the sintering machine. When the ignition temperature is constant, the ignition time is long, the heat quantity transferred to the sintering material by the igniter is large, and the strength of the surface layer sintering ore and the yield can be improved. If the ignition time is insufficient, the ignition temperature must be increased to ensure that the surface mix is able to accumulate some heat.
Disclosure of Invention
In order to solve the problem, the utility model discloses a simple structure can effective energy saving sintering hot-blast ignition structure.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a sintering hot air ignition structure comprises an ignition furnace of a sintering machine, a combustion-supporting air pipeline and an ignition furnace heat preservation section, the combustion-supporting air pipeline is communicated with the sintering machine ignition furnace, the sintering machine ignition furnace is communicated with the ignition furnace heat preservation section, the combustion-supporting air pipeline also comprises a heat insulation valve, a first guide heat pipeline and a second guide heat pipeline, the heat insulation valve is arranged on the combustion-supporting air pipeline, the right side of the heat insulation valve on the combustion-supporting air pipeline is communicated with one end of the first heat guide pipeline, the other end of the first heat guiding pipeline is communicated with the heat preservation section of the ignition furnace, the left side of a heat insulation valve on the combustion-supporting air pipeline is communicated with one end of the second heat guiding pipeline, the other end of the second guide heat pipeline is communicated with the ignition furnace heat preservation section, and the heat insulation valve is closed, so that combustion-supporting air can enter the combustion-supporting air pipeline through the second guide heat pipeline after being heated in the ignition furnace heat preservation section from the first guide heat pipeline and finally enters the ignition furnace of the sintering machine.
Further, still include temperature alarm mechanism, this temperature alarm mechanism have temperature sensor, power, temperature controller and alarm, temperature controller respectively with temperature sensor the alarm is connected, temperature sensor install in the outside of combustion-supporting wind pipeline, temperature controller is used for setting for the threshold value, the power is connected and supplies power with temperature sensor, temperature controller and alarm respectively, and when the temperature that temperature sensor detected was less than the threshold value, the alarm can report to the police.
Further, the inner side of the first heat guiding pipe and the inner side of the second heat guiding pipe are covered with 50mm ceramic fiber.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the utility model has the advantages that under the condition that the technical parameters of the ignition furnace structure and the combustion-supporting fan of the sintering machine are not changed, the additional pipeline leads to the heat preservation section of the ignition furnace, and the waste heat of the ignition furnace is utilized for heating, so that the temperature of combustion-supporting air can be increased by about 30 ℃, and the effect is particularly obvious in winter;
2. the inner sides of the first heat guiding pipeline and the second heat guiding pipeline are both covered with 50mm ceramic fibers, so that the pipeline burning loss is avoided, and the heating of combustion-supporting air is facilitated.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In order to make the technical solutions of the present application better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in fig. 1, a sintering hot air ignition structure comprises a sintering machine ignition furnace 1, a combustion-supporting air pipeline 2 and an ignition furnace heat preservation section 3, wherein the combustion-supporting air pipeline 2 is communicated with the sintering machine ignition furnace 1, the sintering machine ignition furnace 1 is communicated with the ignition furnace heat preservation section 3, the sintering hot air ignition structure further comprises a heat insulation valve 4, a first guide heat pipeline 5 and a second guide heat pipeline 6, the heat insulation valve 4 is installed on the combustion-supporting air pipeline 2, the right side of the heat insulation valve 4 on the combustion-supporting air pipeline 2 is communicated with one end of the first guide heat pipeline 5, the other end of the first guide heat pipeline 5 is communicated with the ignition furnace heat preservation section 3, the left side of the heat insulation valve 4 on the combustion-supporting air pipeline 2 is communicated with one end of the second guide heat pipeline 6, the other end of the second guide heat pipeline 6 is communicated with the ignition furnace heat preservation section 3, and the heat insulation valve 4 is closed to ensure that combustion-supporting air can only enter the ignition furnace heat preservation section 3 from The heat conducting pipeline 6 enters the combustion-supporting air pipeline 2 and finally reaches the ignition furnace 1 of the sintering machine.
Still include temperature alarm mechanism, this temperature alarm mechanism have temperature sensor 7, power (not drawn in the picture), temperature controller (not drawn in the picture) and alarm (not drawn in the picture), temperature controller respectively with temperature sensor 7 the alarm is connected, temperature sensor 7 install in the outside of combustion-supporting air pipeline 2, temperature controller is used for setting for the threshold value, the power is connected and supplies power with temperature sensor 7, temperature controller and alarm respectively, and when the temperature that temperature sensor 7 detected was less than the threshold value, the alarm can report to the police.
The inner side of the first heat guiding pipe 5 and the inner side of the second heat guiding pipe 6 are both covered with 50mm ceramic fiber.
The heat insulation valve 4 is opened under normal conditions, combustion-supporting air is enabled to flow to the sintering machine ignition furnace 1 through the combustion-supporting air pipeline 2, the temperature of the combustion-supporting air pipeline 2 can be detected by the temperature sensor 7, the alarm can give an alarm when the temperature is lower than a threshold value, and a worker needs to close the heat insulation valve 4, so that the combustion-supporting air can only enter the ignition furnace heat preservation section 3 from the first guide heat pipeline 5 to be heated and then enters the combustion-supporting air pipeline 2 through the second guide heat pipeline 6 and finally flows to the sintering machine ignition furnace 1.
The combustion-supporting air pipeline 2 can be divided into a first combustion-supporting air pipeline 21, a second combustion-supporting air pipeline 22, a third combustion-supporting air pipeline 23, a heat insulation valve 4, a first heat guiding pipeline 5 and a second heat guiding pipeline 6 which are sequentially communicated, and the first combustion-supporting air pipeline, the second combustion-supporting air pipeline 22 and the heat insulation valve are all installed on the same. The third combustion air duct 23 includes three ducts communicating with the ignition furnace 1 of the sintering machine.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement, component separation or combination made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A sintering hot air ignition structure comprises an ignition furnace of a sintering machine, a combustion-supporting air pipeline and an ignition furnace heat preservation section, the combustion-supporting air pipeline is communicated with the sintering machine ignition furnace, the sintering machine ignition furnace is communicated with the ignition furnace heat-preservation section, it is characterized by also comprising a heat insulation valve, a first heat guiding pipeline and a second heat guiding pipeline, the heat insulation valve is arranged on the combustion-supporting air pipeline, the right side of the heat insulation valve on the combustion-supporting air pipeline is communicated with one end of the first heat guide pipeline, the other end of the first heat guiding pipeline is communicated with the heat preservation section of the ignition furnace, the left side of a heat insulation valve on the combustion-supporting air pipeline is communicated with one end of the second heat guiding pipeline, the other end of the second guide heat pipeline is communicated with the ignition furnace heat preservation section, and the heat insulation valve is closed, so that combustion-supporting air can enter the combustion-supporting air pipeline through the second guide heat pipeline after being heated in the ignition furnace heat preservation section from the first guide heat pipeline and finally enters the ignition furnace of the sintering machine.
2. The sintering hot air ignition structure according to claim 1, further comprising a temperature alarm mechanism, wherein the temperature alarm mechanism comprises a temperature sensor, a power supply, a temperature controller and an alarm, the temperature controller is respectively connected with the temperature sensor and the alarm, the temperature sensor is installed on the outer side of the combustion supporting air pipeline, the temperature controller is used for setting a threshold value, the power supply is respectively connected with the temperature sensor, the temperature controller and the alarm and supplies power, and when the temperature detected by the temperature sensor is lower than the threshold value, the alarm gives an alarm.
3. The sintered hot air ignition structure according to claim 1, wherein the inner side of the first guide heat pipe and the inner side of the second guide heat pipe are each covered with 50mm ceramic fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021156958.7U CN213515124U (en) | 2020-06-19 | 2020-06-19 | Sintering hot air ignition structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021156958.7U CN213515124U (en) | 2020-06-19 | 2020-06-19 | Sintering hot air ignition structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213515124U true CN213515124U (en) | 2021-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021156958.7U Active CN213515124U (en) | 2020-06-19 | 2020-06-19 | Sintering hot air ignition structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213515124U (en) |
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2020
- 2020-06-19 CN CN202021156958.7U patent/CN213515124U/en active Active
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