CN207862409U - A kind of positive annealing furnace of steel pipe - Google Patents
A kind of positive annealing furnace of steel pipe Download PDFInfo
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- CN207862409U CN207862409U CN201820331879.1U CN201820331879U CN207862409U CN 207862409 U CN207862409 U CN 207862409U CN 201820331879 U CN201820331879 U CN 201820331879U CN 207862409 U CN207862409 U CN 207862409U
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- furnace
- furnace body
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- steel pipe
- pipeline
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Abstract
The centre of a kind of positive annealing furnace of steel pipe, including furnace body, furnace body has furnace chamber, row transmission furnace roller is set in furnace chamber, middle part sets one group of heater, feature：Furnace body sets wind turbine in furnace chamber and at left end, wind turbine is connected to the air preheater being located at outside furnace body for being located at top, air preheater is connected to one group of heater respectively, smoke evacuation cooling blower is set on air preheater, smoke evacuation cooling blower is connected to smoke discharging pipe and cold smoke device, smoke discharging pipe is located at the top of furnace body and extends from left to right, its right end extends to the right-hand end of furnace body and forms horn mouth above furnace chamber, there is the first control valve on smoke discharging pipe, one end of cold smoke device is connected to smoke evacuation cooling blower and sets the second control valve on pipeline, the other end of cold smoke device is connected to the cold air outlet for being located at furnace chamber middle and back.Utilization rate of the furnace body to smoke heat energy is improved, it is energy saving, it is good for the environment；Improve the functionality and the scope of application of furnace body；It is minimum that flue gas cools down the oxidation influence on steel tube surface.
Description
Technical field
The utility model belongs to steel pipe processing technique field, and in particular to a kind of positive annealing furnace of steel pipe.
Background technology
Heat-treatment of annealing is one of step indispensable in seamless steel pipe process, is mainly used to discharge stress, increase
The ductility and toughness for adding steel pipe is finally reached the purpose for improving product quality in order to which steel pipe carries out cold-drawn and straightening processing.
Currently, common annealing furnace, is all made of chain band furnace roller to convey seamless steel pipe, and be arranged on the stepping region of furnace body front end
Nozzle makes steel pipe be rapidly heated in the form of jet flames, and then steel pipe carries out a period of time at the middle part in furnace chamber stepping region
Heat preservation, last steel pipe carries out natural cooling and the cold smoke device by being set to furnace body end at the rear portion in furnace chamber stepping region and adds
Quickly cooling is but annealed.It is well known that annealing process needs after steel pipe is exposed to one section of some time of high temperature, then slowly cool down again
Heat treatment process, and the annealing furnace of this structure is difficult that steel pipe is quickly heated to required temperature in front end area, this is just
It is intended to heat in stove and the distance of heat preservation is longer, the energy of consumption is more；In addition, annealing furnace is to heating process at present
The utilization rate of the flue gas of middle generation is also very low, the serious waste thermal energy of flue gas, nor conducive to environmental protection；Meanwhile this
The annealing furnace of kind structure is not used to the normalized treatment to seamless steel pipe due to cooling slow, functional more single, therefore
It cannot be satisfied the actual demand of user.
In view of the foregoing, it is necessary to which designing one kind can efficiently be preheated using flue gas, and smoothly realize normalizing
The positive annealing furnace of steel pipe switched between processing and annealing.For this purpose, the applicant has made beneficial design, will be described below
Technical solution generate in this background.
Invention content
The task of the utility model is to provide for a kind of positive annealing furnace of steel pipe, helps to optimize furnace body end construction and use pair
Furnace chamber end is preheated the distance for heating and keeping the temperature to shorten furnace body steel pipe in stove, not only increases furnace body to smoke heat energy
Utilization rate also save the energy, be conducive to optimize furnace body air channel structure use realize furnace body normalized treatment and annealing between
Switching, improve the functionality and the scope of application of furnace body.
What the task of the utility model was performed by, a kind of positive annealing furnace of steel pipe, including furnace body, in the furnace body
Between there is furnace chamber, which extends along furnace body length direction and has opening, intermediate in the left and right sides end of length direction
It is provided with a row and transmits furnace roller, one group of heater, group heating are arranged at intervals in furnace chamber and in the middle part of length direction
Device is close to arranging at transmission furnace roller position, it is characterised in that：The furnace body is arranged in furnace chamber and at left end
There is a wind turbine, the wind turbine and the air preheater being located at outside furnace body being disposed over pass through pipeline connection, the air preheat
Device, which is divided into, not to be connected to by pipeline with one group of heater, and a smoke evacuation cooling blower, institute are additionally provided on the air preheater
The smoke evacuation cooling blower stated, which is divided into, not to be connected to by pipeline with a smoke discharging pipe and a cold smoke device, and the smoke discharging pipe is located at stove
The top of body short transverse and extend from left to right, right end extends to the right-hand end of furnace body and formed above furnace chamber
Have a horn mouth, one first control valve be installed on the pipeline of smoke discharging pipe, one end of the cold smoke device by pipeline with
The smoke evacuation cooling blower is connected to and is equipped with one second control valve on the pipeline of connection, and the other end of cold smoke device passes through
Pipeline is connected to the cold air outlet for being arranged in furnace chamber length direction middle and back.
In a specific embodiment of the utility model, the transmission furnace roller is chain band furnace roller.
In another specific embodiment of the utility model, the inlet scoop of the wind turbine is right against the heating on right side
Device.
In another specific embodiment of the utility model, the heater is using combustion gas and air preheater institute
The mode that the flue gas of offer is mixed and burned is heated.
In another specific embodiment of the utility model, the cold smoke device is carried out cold by the way of water cooling
But.
The utility model with the above structure, has the advantage that：First, pass through the preposition attraction smoke pre-heating of wind turbine
Structure with combustion heating is carried out using fume afterheat, is effectively accelerated the heating time to steel pipe, shortens furnace body to steel
Pipe heats and the distance of heat preservation, not only increases utilization rate of the furnace body to smoke heat energy, has saved the energy, and be conducive to ring
It protects；Secondly, for the normalizing type of cooling different with annealing, pass through pipeline switching and Frequency Converter Control smoke evacuation cooling blower rotating speed
Control intensity of cooling, can realize the switching between furnace body normalized treatment and annealing, improve furnace body functionality and
The scope of application；Third, flue gas are the exhaust gas after fully burning in stove, and oxygen content is extremely low, therefore in normalized treatment, use cigarette
Air cooling influences the oxidation of steel tube surface minimum.
Description of the drawings
Fig. 1 is the planar structure schematic diagram of one embodiment of the utility model.
In figure：1. furnace body, 11. furnace chambers, 12. transmission furnace rollers, 13. heaters；2. wind turbine；3. air preheater；4. smoke evacuation
Cooling blower；5. smoke discharging pipe, 51. first control valves, 52. horn mouths；6. cold smoke device, 61. second control valves, 62. cold air outlets.
Specific implementation mode
In order to enable the auditor especially public of Patent Office that the technical essence of the utility model is more clearly understood
And advantageous effect, applicant will elaborate by way of examples below, but be not pair to the description of embodiment
The limitation of the utility model, it is any according to only formal but not substantive made by the utility model design
Equivalent transformation is regarded as category of the technical solutions of the present invention.
The concept of every directionality for being related to upper, lower, left, right, front and rear or directionality is all in the following description
For the location of current Fig. 1 states, thus the spy to technical solution provided by the invention cannot be understood as
It does not limit.
Referring to Fig. 1, the utility model is related to a kind of positive annealing furnace of steel pipe, including furnace body 1, the intermediate tool of the furnace body 1
There is furnace chamber 11, which extends along furnace body length direction and have opening, centre in the left and right sides end of length direction
It is provided with a row and transmits furnace roller 12, one group of heater 13 is arranged at intervals in furnace chamber 11 and in the middle part of length direction, it should
Group heater 13 is set close to arrangement at 12 position of transmission furnace roller, the furnace body 1 in furnace chamber 11 and at left end
It is equipped with a wind turbine 2, the wind turbine 2 and the air preheater 3 being located at outside furnace body 1 being disposed over pass through pipeline connection, the sky
Air preheater 3, which is divided into, not to be connected to by pipeline with one group of heater 13, and it is cold to be additionally provided with a smoke evacuation on the air preheater 3
But wind turbine 4, the smoke evacuation cooling blower 4, which is divided into, not to be connected to by pipeline with a smoke discharging pipe 5 and a cold smoke device 6, described
Smoke discharging pipe 5 is located at the top of 1 short transverse of furnace body and extends from left to right, and right end extends to the right-hand end of furnace body 1
Portion is simultaneously formed with a horn mouth 52 above furnace chamber 11, and one first control valve 51 is equipped on the pipeline of smoke discharging pipe 5, described
One end of cold smoke device 6 be connected to the smoke evacuation cooling blower 4 by pipeline and be equipped with one on the pipeline of connection
Two control valves 61, the other end of cold smoke device 6 are connected to by pipeline with the cold air outlet 62 for being arranged in 11 length direction middle and back of furnace chamber.
Further, the transmission furnace roller 12 is chain band furnace roller.
Further, the inlet scoop of the wind turbine 2 is right against the heater 13 on right side.
Further, the side that the heater 13 is mixed and burned using combustion gas with the flue gas that air preheater 3 is provided
Formula is heated.
Further, the cold smoke device 6 is cooled down by the way of water cooling.
Please continue to refer to Fig. 1, when being made annealing treatment to steel pipe using the furnace body 1 of the utility model, it is first turned on
Then one control valve 51 and the second control valve 61 of closing are opened heater 13 and are heated to furnace chamber 11, the heater
13 generate the largely flue gas with thermal energy during heating, and the wind turbine 2 which is placed in 11 left end of furnace chamber absorbs, and passes through
Pipeline is passed through in the air preheater 3 of 1 top of furnace body, and above-mentioned flue gas can be to passing when by the transmission furnace roller 12 of 11 front end of furnace chamber
Furnace roller 12 and the steel pipe conveyed thereon is sent to be preheated, and remaining heat is logical after entering in air preheater 3 in flue gas
It crosses pipeline to be communicated back to again in heater 13, so that combustion gas is mixed and burned with hot-air and heat, to secondary use flue gas, improve
To the utilization rate of flue gas heat, and extra flue gas is then discharged by discharging fume cooling blower 4 from smoke discharging pipe 5, and steel pipe is in stove
The middle part of chamber 11 natural cooling during the back segment of furnace chamber 11 transports after when heater 13 heats and keeps the temperature one section, directly
To steel pipe from the right end pass-out of furnace chamber 11, to complete the entire annealing process of steel pipe.Steel pipe is carried out when using furnace body 1
When normalized treatment, be first turned on the second control valve 61 and close the first control valve 51, then open heater 13 to furnace chamber 11 into
Row heating, the heater 13 generate a large amount of flue gases with thermal energy during heating, and flue gas is placed in 11 front end of furnace chamber
Wind turbine 2 absorb and be passed through in the air preheater 3 of the top of furnace body 1 by pipeline, above-mentioned flue gas is by 11 front end of furnace chamber
Transmission furnace roller 12 and the steel pipe conveyed thereon can be preheated when transmitting furnace roller 12, and remaining heat is entering in flue gas
It is communicated back to again in heater 13 by pipeline after in the air preheater 3, so that combustion gas is mixed and burned with hot-air and add
Heat improves the utilization rate to flue gas heat to secondary use flue gas, and extra flue gas then passes through cooling blower 4 of discharging fume
It is passed through cold smoke device 6, and controls the rotating speed of smoke evacuation cooling blower 4 by frequency converter, to realize that the control of intensity of cooling, flue gas are passing through
The cooling that cold smoke device 6 makees the steel pipe progress fast speed heated from 62 pass-out of cold air outlet and to process after further cooling is crossed, most
Steel pipe natural cooling during the back segment of furnace chamber 11 transports afterwards, until right end pass-out of the steel pipe from furnace chamber 11, to complete steel
The entire normalized treatment process of pipe.
Claims (5)
1. the centre of a kind of positive annealing furnace of steel pipe, including furnace body (1), the furnace body (1) has furnace chamber (11), furnace chamber (11) edge
Furnace body length direction, which extends and in the left and right sides end of length direction there is opening, centre to be provided with a row, transmits furnace roller
(12), one group of heater (13), this group of heater (13) are arranged at intervals in furnace chamber (11) and in the middle part of length direction
It arranges at close to transmission furnace roller (12) position, it is characterised in that：The furnace body (1) is in furnace chamber (11) and close to left-hand end
A wind turbine (2) is provided at portion, which passes through with what is be disposed over positioned at the air preheater (3) of furnace body (1) outside
Pipeline connection, which, which is divided into, is not connected to by pipeline with one group of heater (13), the air preheater
(3) a smoke evacuation cooling blower (4) is additionally provided on, the smoke evacuation cooling blower (4) is divided into not through pipeline and a smoke exhaust pipe
Road (5) is connected to a cold smoke device (6), and the smoke discharging pipe (5) is located at the top of furnace body (1) short transverse and prolongs from left to right
It stretches, right end extends to the right-hand end of furnace body (1) and is formed with a horn mouth (52) above furnace chamber (11), is discharging fume
One first control valve (51) is installed, one end of the cold smoke device (6) passes through pipeline and the row on the pipeline of pipeline (5)
Cigarette cooling blower (4) is connected to and is equipped on the pipeline of connection one second control valve (61), and the other end of cold smoke device (6) is logical
Cold air outlet (62) of the piping with setting in furnace chamber (11) length direction middle and back is connected to.
2. the positive annealing furnace of a kind of steel pipe according to claim 1, it is characterised in that the transmission furnace roller (12) is chain
Band furnace roller.
3. the positive annealing furnace of a kind of steel pipe according to claim 1, it is characterised in that the inlet scoop face of the wind turbine (2)
Heater (13) in right side.
4. the positive annealing furnace of a kind of steel pipe according to claim 1, it is characterised in that the heater (13) uses combustion gas
The mode being mixed and burned with the flue gas that air preheater (3) is provided is heated.
5. the positive annealing furnace of a kind of steel pipe according to claim 1, it is characterised in that the cold smoke device (6) is using water cooling
Mode is cooled down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820331879.1U CN207862409U (en) | 2018-03-12 | 2018-03-12 | A kind of positive annealing furnace of steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820331879.1U CN207862409U (en) | 2018-03-12 | 2018-03-12 | A kind of positive annealing furnace of steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207862409U true CN207862409U (en) | 2018-09-14 |
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ID=63455790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820331879.1U Active CN207862409U (en) | 2018-03-12 | 2018-03-12 | A kind of positive annealing furnace of steel pipe |
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| Country | Link |
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| CN (1) | CN207862409U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114798801A (en) * | 2021-08-25 | 2022-07-29 | 常熟市异型钢管有限公司 | Automatic production method of high-precision oxygen-free steel pipe |
-
2018
- 2018-03-12 CN CN201820331879.1U patent/CN207862409U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114798801A (en) * | 2021-08-25 | 2022-07-29 | 常熟市异型钢管有限公司 | Automatic production method of high-precision oxygen-free steel pipe |
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