CN203190816U - Waste heat recovery type core rod preheating furnace - Google Patents
Waste heat recovery type core rod preheating furnace Download PDFInfo
- Publication number
- CN203190816U CN203190816U CN2013200074237U CN201320007423U CN203190816U CN 203190816 U CN203190816 U CN 203190816U CN 2013200074237 U CN2013200074237 U CN 2013200074237U CN 201320007423 U CN201320007423 U CN 201320007423U CN 203190816 U CN203190816 U CN 203190816U
- Authority
- CN
- China
- Prior art keywords
- hot
- preheating
- air
- waste heat
- plug
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The utility model discloses a waste heat recovery type core rod preheating furnace which comprises a furnace body. A hot-air system and an air supply system are arranged on the furnace body, the hot-air system is provided with a heat exchanger and a hot-blast valve, the air supply system is provided with a regulating valve, an air supply tube is arranged at the rear end of the regulating valve, and hot air is sent into the furnace body through the air supply tube. Compared with the prior art, the hot air which is non-toxic, non-corrosive, stable in pressure, controllable in temperature and little in impurity serves as a hot source to preheat a seamless steel tube rolling mill core rod, through optimization of a preheating process of the preheating furnace, the temperature of core rod is uniform, and the optimal preheating effect is achieved; the waste heat recovery type core rod preheating furnace has the advantages of economy, high efficiency, energy conservation and environmental protection, and has good promotional value.
Description
Technical field
The utility model relates to a kind of plug preheating furnace, specifically, relates to a kind of recovery waste heat formula plug preheating furnace.
Background technology
The plug preheating furnace is the visual plant of seamless steel pipe pipe mill, before plug comes into operation, its preheating must be its objective is in spraying lubricant operation, and lubricant can be attached on the mandrel surface securely.Plug preheating method of the prior art adopts useless flue gas or electricity as thermal source basically, and useless poisonous smoke, instability have corrosiveness to plug; Electric preheating has shortcomings such as expense height, heating-up temperature be inhomogeneous.
Preheating has advantages such as nontoxic, stable, no burn into heating-up temperature is even and hot-air is as thermal source, therefore, be thermal source preheating plug with the hot-air, and the heating process with optimum pre-heat effect, and the plug preheating technology that is easy to realize in industrial production is this area problem demanding prompt solution always.
The utility model content
The technical problem that the utility model solves provides a kind of recovery waste heat formula plug preheating furnace, has the characteristics of economy, efficient, energy-saving and environmental protection, has excellent generalization values.
For achieving the above object, technical solutions of the utility model are as follows:
A kind of recovery waste heat formula plug preheating furnace comprises body of heater, and described body of heater is provided with hot-air system and supply air system, and described hot-air system is provided with heat exchanger and hot-blast valve; Described supply air system arranges control valve, and the rear end of described control valve is provided with ajutage, by described ajutage hot blast is sent into described body of heater.
Further: described control valve arranges in described body of heater bilateral symmetry, and each forms a control valve group to control valve.
Further: the quantity of described control valve group is 15～22 groups.
Further: the aperture of described hot-blast valve is 70-80 ﹪.
Compared with prior art, the utility model with the less hot-air of nontoxic, no burn into pressure stability, Controllable Temperature, impurity as thermal source preheating seamless steel pipe mandrel bar, by optimizing its pre-heating technique, make the plug temperature even, reach best pre-heat effect.The utlity model has the characteristics of economy, efficient, energy-saving and environmental protection, have excellent generalization values.
Description of drawings
Fig. 1 is the structure chart of recovery waste heat formula plug preheating furnace in the utility model.
The specific embodiment
In view of the problem that prior art exists, it is thermal source with the hot-air that the utility model provides a kind of, and has plug pre-heating means efficient, energy-saving and environmental protection.Hot-air is to form by the useless flue gas heating that annular furnace in the seamless steel tube production operation produces, and is the effective way of UTILIZATION OF VESIDUAL HEAT IN.
Below with reference to preferred embodiment, technical solutions of the utility model are elaborated.
As shown in Figure 1, be the structure chart of recovery waste heat formula plug preheating furnace in the utility model.
In the utility model, the overall structure of recovery waste heat formula plug preheating furnace comprises: body of heater 15, hot-air system, supply air system, truck 14 constitute, wherein, body of heater 15 is the places to the plug heating, supply air system is used for the air of heat exchanger 11 heating is sent into body of heater 15, supply air system is used for regulating the heated length of air output and body of heater 15, and truck 14 is used for plug is sent into body of heater 15, and the plug after will heating is sent body of heater 15.
Hot-air system is provided with heat exchanger 11, and heat exchanger 11 is placed in the flue of annular furnace in the utility model, and heat exchanger 11 is used for reclaiming the heat that annular furnace takes flue gas.Hot-air system is provided with hot-blast valve 12, and when hot-blast valve 12 apertures were 70-80 ﹪, thermal current was steady, and the plug preheating is even, and the thermal efficiency can reach 65-75 ﹪, the heating best results.According to the open degree that temperature in the stove of plug preheating furnace is regulated the high temperature Pneumatic butterfly valve, guarantee that the furnace temperature of plug preheating furnace is stable.Air themperature after the heating of plug preheating furnace is between 350-450 ℃.
Supply air system is used for hot-air is sent into burner hearth, and air blast regulating system is provided with control valve 13, and the rear end of control valve 13 is provided with ajutage 16, by ajutage 16 hot blast is sent into body of heater 15.Control valve 13 arranges in the body of heater bilateral symmetry, and symmetrically arranged a pair of control valve 13 is called the control valve group.The quantity of control valve group is determined according to the required diameter of mandrel of different units and active section length, generally is the 15-22 group.
When plug heating target temperature is 100 ± 10 ℃, can make down the effect that is coated with lubricant together reach best.Plug heating maximum rate is 0.12 ℃/s, for making the plug temperature even, reaches pre-heat effect preferably, and when diameter during less than 245.2mm, preheating time must not be less than 25min; When diameter was not less than 245.2mm, preheating time must not be less than 35min.
The utility model is applied on three plug preheating furnaces of Φ 180, Φ 159, Φ 460 units.The thermal source of Φ 180 unit plug preheatings is to change the hot-air that utilizes after the plug preheating furnace heating into by original electrical heating, and the thermal source of Φ 460 units changes hot-air after the heating of plug preheating furnace into by original flue gas, and the thermal source of Φ 159 plug preheatings is hot-air.
The data of gathering under the different plug hot-air preheating methods are as shown in table 1, and mandrel material is H13 in the table, and the plug temperature is plug active section equidistant 4 points from the head end to the tail end in the table.
The data that the different plug hot-air of table 1 preheating example is gathered
The data of gathering (electric preheating, smoke pre-heating, hot-air preheating) plug under the different preheating methods are as shown in table 2, and mandrel material is H13 in the table, and the plug temperature is plug active section equidistant 4 points from the head end to the tail end in the table.
Plug image data under the different preheating methods of table 2
Can find that by comparison sheet 1 and table 2 when with the hot-air being thermal source preheating plug, the plug temperature is more even, heat time heating time is shorter.By the Φ 159 unit plug pre-heat effect in the table 1 as can be seen, when the hot-blast valve aperture was 73%, the mandrel surface temperature was more even, and preheating time is shorter.
Claims (4)
1. a recovery waste heat formula plug preheating furnace comprises body of heater, and it is characterized in that: described body of heater is provided with hot-air system and supply air system, and described hot-air system is provided with heat exchanger and hot-blast valve; Described supply air system is provided with control valve, and the rear end of described control valve is provided with ajutage, by described ajutage hot blast is sent into described body of heater.
2. recovery waste heat formula plug preheating furnace as claimed in claim 1, it is characterized in that: described control valve arranges in described body of heater bilateral symmetry, and each forms a control valve group to control valve.
3. recovery waste heat formula plug preheating furnace as claimed in claim 2, it is characterized in that: the quantity of described control valve group is 15～22 groups.
4. recovery waste heat formula plug preheating furnace as claimed in claim 1, it is characterized in that: the aperture of described hot-blast valve is 70-80 ﹪.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200074237U CN203190816U (en) | 2013-01-08 | 2013-01-08 | Waste heat recovery type core rod preheating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200074237U CN203190816U (en) | 2013-01-08 | 2013-01-08 | Waste heat recovery type core rod preheating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203190816U true CN203190816U (en) | 2013-09-11 |
Family
ID=49107669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200074237U Withdrawn - After Issue CN203190816U (en) | 2013-01-08 | 2013-01-08 | Waste heat recovery type core rod preheating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203190816U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107957199A (en) * | 2017-11-20 | 2018-04-24 | 马中亮 | Recovery waste heat formula core rod preheating furnace |
-
2013
- 2013-01-08 CN CN2013200074237U patent/CN203190816U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107957199A (en) * | 2017-11-20 | 2018-04-24 | 马中亮 | Recovery waste heat formula core rod preheating furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203432296U (en) | Energy-saving ceramic kiln | |
| CN104152668B (en) | Reduce the devices and methods therefor of heater for rolling steel billet oxidization burning loss | |
| CN105202912A (en) | Gas roller way kiln | |
| CN103256821B (en) | Method for preheating mandril of seamless steel tube rolling machine | |
| CN203190816U (en) | Waste heat recovery type core rod preheating furnace | |
| CN202022846U (en) | Efficient energy-saving gas toughening furnace | |
| CN203295556U (en) | Heat-treatment furnace system for waste heat recovery | |
| CN203960269U (en) | The how excellent process furnace of middle heating-type | |
| CN104864691B (en) | Method of drying welding electrode through microwave | |
| CN104180680B (en) | Coordinated control method for regenerator temperature and furnace pressure of regenerative heating furnace | |
| CN107957199A (en) | Recovery waste heat formula core rod preheating furnace | |
| CN207635360U (en) | A kind of VOCs exhaust gas heat accumulating burner | |
| CN201068465Y (en) | Coal electricity double energy source stainless steel band annealing stove for keeping brightness | |
| CN107941025A (en) | The pre-heating mean of core rod of seamless | |
| CN209507984U (en) | A kind of feeding pipeline waste heat recovery device for glassware melting furnace | |
| CN205192225U (en) | Gas roll table kiln | |
| CN211668259U (en) | Energy-saving natural gas heat supply type closed-pore expansion furnace equipment | |
| CN203980301U (en) | A kind of efficient energy-saving incinerator | |
| CN209013701U (en) | The energy saving drying chamber of system lid | |
| CN101812573B (en) | Gas-heated multipurpose roller hearth furnace | |
| CN204638808U (en) | A kind of tungsten plate rotary machine | |
| CN205690393U (en) | A kind of self-preheating type gas burner of multi-stage heat exchanger | |
| CN105258473B (en) | A kind of drying plant of line | |
| CN203976878U (en) | Electric heat treating furnace at the bottom of steel pipe energy-saving formula roller | |
| CN205175148U (en) | Steel ball waste heat recovery utilizes system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130911 Effective date of abandoning: 20220316 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130911 Effective date of abandoning: 20220316 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |