CN205635671U - Rotary hearth furnace bottom heating device - Google Patents
Rotary hearth furnace bottom heating device Download PDFInfo
- Publication number
- CN205635671U CN205635671U CN201620302702.XU CN201620302702U CN205635671U CN 205635671 U CN205635671 U CN 205635671U CN 201620302702 U CN201620302702 U CN 201620302702U CN 205635671 U CN205635671 U CN 205635671U
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- China
- Prior art keywords
- rotary hearth
- hearth furnace
- flame retardant
- retardant coating
- heating plant
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Abstract
The utility model discloses a rotary hearth furnace bottom heating device, the flame retardant coating that includes rotatory ring dish and have the distribution function, the flame retardant coating is located rotatory ring dish, and the rotary hearth furnace material level is equipped with heating device in rotatory ring dish below on the flame retardant coating, and heating device is connected with the flame retardant coating through the through -hole that sets up on rotatory ring dish, and the heat of heating device product passes through the through -hole and transmits on the flame retardant coating to transmit on the rotary hearth furnace material. The utility model discloses a rotary hearth furnace bottom heating device, through setting up sealing sink, guarantee the sealed of rotatory ring dish and static bellows or combustion chamber, high -temperature gas passes through wind gap or the resistant material of nozzle entering rotary hearth furnace upper portion distribution simultaneously, and with rotary hearth furnace furnace charge uniform contact, improve the rotary hearth furnace furnace charge degree of consistency of being heated from top to bottom, improve rotary hearth furnace cloth thickness, increase rotary hearth furnace equipment capacity, improve rotary hearth furnace reduction effect, raises the product quality, the one -pole magnet is simple in structure, implement advantages such as easy.
Description
Technical field
This utility model relates to heating plant bottom a kind of rotary hearth furnace, belongs to direct-reduction rotary hearth furnace technical field.
Background technology
Rotary hearth furnace is one of nucleus equipment of coal-based direct reduction.At present, rotary hearth furnace is widely used in process iron and steel ion dust mud contaning, vanadium titano-magnetite, the difficult field such as ore dressing, lateritic nickel ore.Rotary hearth furnace uses coal or coke as reducing agent, natural gas, coke-stove gas, coal gas of converter, coal gas and mixed gas etc. can be used as fuel gas source, have the advantages such as wide, stable, the furnace life length of production of fuel gas source.But prior art still suffers from following technical disadvantages: (1) conducts heat based on radiant heat, convection heat transfer' heat-transfer by convection utilization not yet in effect；(2) temperature of flame can only pass to 1～2 layer of material of furnace roof by radiation, and this makes rotary hearth furnace fabric thickness be usually 1～2 layer of furnace charge, and furnace bottom rate of driving is low, constrains rotary hearth furnace equipment disposal ability；(3) high near flame side charge-temperature, reduction effect is good, and the charge-temperature of furnace bottom is low, and reduction effect is poor, causes product quality uneven.Being had the structure of refractory of bottom distribution function by setting, can solve the problems referred to above, but top furnace wall and furnace roof are static, furnace charge rotates with Rotation ring disk electrode with refractory material, the most stably from bottom to furnace charge heat supply, still suffers from certain technological difficulties.
Utility model content
Goal of the invention: in order to overcome the deficiencies in the prior art, this utility model provides heating plant bottom a kind of rotary hearth furnace, high-temperature gas enters in stove by heating plant from bottom, contact with furnace charge, thus increase the heat capacity to rotary hearth furnace bottom furnace charge, increase rotary hearth furnace fabric thickness, improve product quality, improve rotary hearth furnace equipment capacity.
Technical scheme: for solving above-mentioned technical problem, heating plant bottom a kind of rotary hearth furnace of the present utility model, including Rotation ring disk electrode and the flame retardant coating with distribution function, described flame retardant coating is positioned on Rotation ring disk electrode, rotary hearth furnace material is positioned on flame retardant coating, is provided with heating plant below Rotation ring disk electrode, and heating plant is connected with flame retardant coating by the through hole being arranged on Rotation ring disk electrode, the heat of heating plant product is delivered on flame retardant coating by through hole, thus is delivered on rotary hearth furnace material.
As preferably, described heating plant comprises bellows and sealed cistern, described bellows are positioned at below Rotation ring disk electrode, the bottom of bellows is provided with high-temperature gas entrance, it is provided with at bellows top and fixes the sealing ring being connected with Rotation ring disk electrode, the bottom of sealing ring is inserted in sealed cistern, and sealed cistern is positioned at the outside of bellows.
As preferably, the bottom circumference of described bellows is uniformly distributed several high-temperature gas entrances.
As preferably, described heating plant comprises combustor and nozzle, and the bottom of described combustor and side have been evenly arranged several nozzles, air and combustion gas and have blasted combustor from nozzle, and combustor is by by being sent to high-temperature gas in flame retardant coating.
As preferably, described top of combustion chamber is provided with fixes the sealing ring being connected with Rotation ring disk electrode, and the bottom of sealing ring is inserted in sealed cistern, and sealed cistern is positioned at the outside of combustor.
Beneficial effect: heating plant bottom rotary hearth furnace of the present utility model, by arranging sealed cistern, ensure Rotation ring disk electrode and static bellows or the sealing of combustor, high-temperature gas enters the resistance to material of rotary hearth furnace top distribution by air port or burner simultaneously, and with rotary hearth furnace furnace charge uniform contact, improve rotary hearth furnace furnace charge degree of being heated evenly up and down, improve rotary hearth furnace fabric thickness, increase rotary hearth furnace equipment capacity, improve rotary hearth furnace reduction effect, improve product quality, the most also there is simple in construction, implement the advantages such as easy.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is another kind of structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described.
Embodiment 1
As shown in Figure 1, heating plant bottom a kind of rotary hearth furnace of the present utility model, including Rotation ring disk electrode 1 and the flame retardant coating 6 with distribution function, flame retardant coating 6 is by the distribution of through hole thus adjusts the distribution of gas, described flame retardant coating 6 is positioned on Rotation ring disk electrode 1, rotary hearth furnace material is positioned on flame retardant coating 6, it is provided with heating plant below Rotation ring disk electrode 1, heating plant is connected with flame retardant coating 6 by the through hole being arranged on Rotation ring disk electrode 1, the heat of heating plant product is delivered on flame retardant coating 6 by through hole, thus is delivered on rotary hearth furnace material 10.Described heating plant comprises bellows 4 and sealed cistern 3, described bellows 4 are positioned at below Rotation ring disk electrode 1, the bottom of bellows 4 is provided with high-temperature gas entrance 5, the sealing ring 2 that be connected fixing with Rotation ring disk electrode 1 it is provided with at bellows 4 top, the bottom of sealing ring 2 is inserted in sealed cistern 3, and sealed cistern 3 is positioned at the outside of bellows 4.The refractory material of described bellows 4 and described Rotation ring disk electrode 1 or be entirely by refractory material laying or pour molding, or mixed by part heat resisting steel and part refractory material, gas pressure 0.5～8Kpa in described bellows 4.
Embodiment 2
As shown in Figure 2, heating plant bottom a kind of rotary hearth furnace of the present utility model, including Rotation ring disk electrode 1 and the flame retardant coating 6 with distribution function, described flame retardant coating 6 is positioned on Rotation ring disk electrode 1, rotary hearth furnace material is positioned on flame retardant coating 6, is provided with heating plant below Rotation ring disk electrode 1, and heating plant is connected with flame retardant coating 6 by the through hole being arranged on Rotation ring disk electrode 1, the heat of heating plant product is delivered on flame retardant coating 6 by through hole, thus is delivered on rotary hearth furnace material 10.Described heating plant comprises combustor 7 and nozzle 8, and the bottom of described combustor 7 and side have been evenly arranged several nozzles 8, air and combustion gas and have blasted combustor 7 from nozzle 8, and combustor 7 is by by being sent to high-temperature gas in flame retardant coating 6.Described combustor 7 top is provided with the sealing ring 2 that be connected fixing with Rotation ring disk electrode 1, and the bottom of sealing ring 2 is inserted in sealed cistern 3, and sealed cistern 3 is positioned at the outside of combustor 7.The refractory material of described combustor 7 and described Rotation ring disk electrode 1 or be entirely by refractory material laying or pour molding, or mixed by part heat resisting steel and part refractory material, gas pressure 0.5～8Kpa in described combustor 7.
The above is only preferred implementation of the present utility model; it is noted that, for those skilled in the art; on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (5)
1. heating plant bottom a rotary hearth furnace, it is characterised in that: include Rotation ring disk electrode and there is the fire-resistant of distribution function
Layer, described flame retardant coating is positioned on Rotation ring disk electrode, and rotary hearth furnace material is positioned on flame retardant coating, is provided with for hot charging below Rotation ring disk electrode
Putting, heating plant is connected with flame retardant coating by the through hole being arranged on Rotation ring disk electrode, and the heat of heating plant product is by logical
Hole is delivered on flame retardant coating, thus is delivered on rotary hearth furnace material.
Heating plant bottom rotary hearth furnace the most according to claim 1, it is characterised in that: described heating plant comprises
Bellows and sealed cistern, described bellows are positioned at below Rotation ring disk electrode, and the bottom of bellows is provided with high-temperature gas entrance, at bellows
Top is provided with fixes the sealing ring being connected with Rotation ring disk electrode, and the bottom of sealing ring is inserted in sealed cistern, sealed cistern position
Outside in bellows.
Heating plant bottom rotary hearth furnace the most according to claim 2, it is characterised in that: the bottom week of described bellows
To being uniformly distributed several high-temperature gas entrances.
Heating plant bottom rotary hearth furnace the most according to claim 1, it is characterised in that: described heating plant comprises
Combustor and nozzle, the bottom of described combustor and side have been evenly arranged several nozzles, air and combustion gas from nozzle drum
Entering combustor, combustor is by by being sent to high-temperature gas in flame retardant coating.
Heating plant bottom rotary hearth furnace the most according to claim 4, it is characterised in that: described top of combustion chamber sets
Having and fix the sealing ring being connected with Rotation ring disk electrode, the bottom of sealing ring is inserted in sealed cistern, and sealed cistern is positioned at burning
The outside of room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620302702.XU CN205635671U (en) | 2016-04-12 | 2016-04-12 | Rotary hearth furnace bottom heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620302702.XU CN205635671U (en) | 2016-04-12 | 2016-04-12 | Rotary hearth furnace bottom heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205635671U true CN205635671U (en) | 2016-10-12 |
Family
ID=57063930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620302702.XU Expired - Fee Related CN205635671U (en) | 2016-04-12 | 2016-04-12 | Rotary hearth furnace bottom heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205635671U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111254246A (en) * | 2020-01-21 | 2020-06-09 | 钢铁研究总院 | Rotary hearth furnace |
-
2016
- 2016-04-12 CN CN201620302702.XU patent/CN205635671U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111254246A (en) * | 2020-01-21 | 2020-06-09 | 钢铁研究总院 | Rotary hearth furnace |
| CN111254246B (en) * | 2020-01-21 | 2021-05-07 | 钢铁研究总院 | Rotary hearth furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 Termination date: 20180412 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |