Rotary hearth furnace
US-2017198365-A1 · Jul 13, 2017 · US
Rotary hearth furnace
US10294535B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10294535-B2 |
| Application number | US-201515324087-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 23, 2015 |
| Priority date | Jul 16, 2014 |
| Publication date | May 21, 2019 |
| Grant date | May 21, 2019 |
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- Title
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Abstract
Official abstract text for this publication.
A rotary hearth furnace includes a unit that supplies an agglomerate onto a hearth of the rotary hearth furnace, a unit that discharges a heated substance which has been heated in the rotary hearth furnace to the outside of the furnace, and a unit that discharges an exhaust gas in the rotary hearth furnace to the outside of the furnace. The rotary hearth furnace has a heating section and a non-heating section. The unit that discharges an exhaust gas to the outside of the furnace is provided in the non-heating section. A unit that takes an outside air into the furnace is provided in the non-heating section and on an upstream side in a flow direction of the exhaust gas from the unit that discharges exhaust gas to the outside of the furnace.
First claim
Opening claim text (preview).
The invention claimed is: 1. A rotary hearth furnace for heating an agglomerate comprising an iron-oxide containing material and a carbonaceous reducing material to produce a reduced iron, the rotary hearth furnace having a heating section and a non-heating section and comprising: a unit that supplies the agglomerate onto a hearth of the rotary hearth furnace; a unit that discharges a heated substance which has been heated in the rotary hearth furnace to the outside of the furnace; a unit that discharges an exhaust gas in the rotary hearth furnace to the outside of the furnace; and a unit that takes an outside air into the furnace, wherein: the unit that discharges the exhaust gas to the outside of the furnace is provided in the non-heating section; and the unit that takes an outside air into the furnace is provided in the non-heating section and on an upstream side in a flow direction of the exhaust gas from the unit that discharges the exhaust gas to the outside of the furnace. 2. The rotary hearth furnace according to claim 1 , wherein the unit that takes the outside air into the furnace comprises a regulating valve that regulates the volume of a gas taken in. 3. The rotary hearth furnace according to claim 1 , wherein the unit that takes the outside air into the furnace comprises a blower. 4. The rotary hearth furnace according to claim 2 , wherein the unit that takes the outside air into the furnace comprises a blower. 5. The rotary hearth furnace according to claim 1 , further comprising a partition wall that partitions the heating section and the non-heating section. 6. The rotary hearth furnace according to claim 2 , further comprising a partition wall that partitions the heating section and the non-heating section. 7. The rotary hearth furnace according to claim further comprising a partition wall that partitions the heating section and the non-heating section. 8. The rotary hearth furnace according to claim 4 , further comprising a partition wall that partitions the heating section and the non-heating section.
Assignees
Inventors
Classifications
charging of particulate material · CPC title
- C21B13/105Primary
Rotary hearth-type furnaces · CPC title
Handling or treating discharged material; Supports or receiving chambers therefor · CPC title
Arrangements of devices for charging · CPC title
Walls; Roofs · CPC title
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Frequently asked questions
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- What does patent US10294535B2 cover?
- A rotary hearth furnace includes a unit that supplies an agglomerate onto a hearth of the rotary hearth furnace, a unit that discharges a heated substance which has been heated in the rotary hearth furnace to the outside of the furnace, and a unit that discharges an exhaust gas in the rotary hearth furnace to the outside of the furnace. The rotary hearth furnace has a heating section and a non-…
- Who is the assignee on this patent?
- Kobe Steel Ltd
- What technology area does this patent fall under?
- Primary CPC classification C21B13/105. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 21 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).