CN206588342U - A kind of continuous casting intermediate inlet toasts bottom extractor fan online - Google Patents
A kind of continuous casting intermediate inlet toasts bottom extractor fan online Download PDFInfo
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- CN206588342U CN206588342U CN201720296179.9U CN201720296179U CN206588342U CN 206588342 U CN206588342 U CN 206588342U CN 201720296179 U CN201720296179 U CN 201720296179U CN 206588342 U CN206588342 U CN 206588342U
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- mouth
- river
- exhaust column
- compressed air
- gas injection
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Abstract
A kind of continuous casting intermediate inlet toasts bottom extractor fan online, belongs to continuous casting intermediate inlet roasting plant technical field, for being toasted online to continuous casting intermediate inlet.Its technical scheme is：The upper end of mouth of a river bottom exhaust column is connected with mouth of a river Xia Kou, the front end of gas injection tube is fixedly connected on the L-shaped bending place of mouth of a river bottom exhaust column, Way out of the spout direction of gas injection tube along mouth of a river bottom exhaust column, the rear end of gas injection tube is connected with the front end of blast sebific duct, the rear end of blast sebific duct is connected with compressed air distributor, and compressed air distributor is connected with compressed air piping.The utility model uses gas injection drainage technology, the exhausting drainage of mouth of a river bottom is carried out using compressed air, water nozzle bottom exhaust column and gas injection tube combination instead of high-power air exhauster and air draft pipe, both lifting bottom exhausting efficiency of utilization reached, improved the purpose of mouth of a river preheating temperature, equipment investment and energy medium expense are significantly reduced again.
Description
Technical field
The utility model is related to a kind of continuous casting intermediate inlet and toasts bottom extractor fan online, belongs to continuous casting intermediate inlet
Roasting plant technical field.
Background technology
Need to carry out baking preheating to the resistance to material of tundish before continuous casting, the baking quality of tundish directly decides centre
The thermal steady state of bag, thus have influence on it is middle unwrap pour or quick change success or not, to improving tundish casting sequence, improving
Conticaster operating rate, reduction production cost play an important role.Current continuous casting stopper, submersed nozzle material use Al2O3 -
C, it have at low temperature, particularly 600 DEG C~800 DEG C it is oxidizable the characteristics of.How to prevent stopper, leaching people's formula mouth of a river in centre
Aoxidized in bag baking process, it is ensured that stopper, the quality of submersed nozzle are the problem of having to solve.Except to improve plug
Outside rod, the submersed nozzle anti-aging capability of itself, the atmosphere of stopper, submersed nozzle is made in the baking process of tundish
Temperature quickly move through the region of low-temperature space, particularly 600 DEG C~800 DEG C, into high-temperature region, it is to avoid stopper, immersion water
Mouth is aoxidized.
Theory analysis shows with practical application, for the tundish of built-in submersed nozzle, bottom air-draft-type roasting mode
It is current relatively effective mouth of a river pre-heating temperature elevation mode.But, because the pipeline of traditional bottom exhausting system is longer, bend pipe compared with
Many, exhausting flow only has 0.2m3·s-1, the temperature of mouth of a river neck outer wall only has 650-750 DEG C after preheating, and the mouth of a river is used at the scene
During easily there is heat and shake phenomenon of rupture, this explanation mouth of a river neck preheating temperature needs further improve.At present, mouth of a river neck is improved
The effective ways of portion's preheating temperature are to improve exhausting flow, generally using by using more powerful air exhauster or change pipeline instead
Realized in the way of reducing pipeline on-way resistance, but the cost of this mode is higher, maintenance workload is larger, and except this it
Outside without preferred solution, as the problem not solved so far in industry, it would be highly desirable to which technical staff and workman are solved.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of continuous casting intermediate inlet and toasts bottom exhausting dress online
Put, this device can effectively lift bottom exhausting efficiency of utilization, mouth of a river preheating temperature be improved, while can be greatly lowered again
Equipment investment and energy medium expense.
Solving the technical scheme of above-mentioned technical problem is：
A kind of continuous casting intermediate inlet toasts bottom extractor fan online, and it includes mouth of a river bottom exhaust column, gas injection tube, wind
Moulding pipe, compressed air distributor, mouth of a river bottom exhaust column are L-shaped pipe, and the upper end of mouth of a river bottom exhaust column is connected with mouth of a river Xia Kou,
The front end of gas injection tube is fixedly connected on the L-shaped bending place of mouth of a river bottom exhaust column, and the spout direction of gas injection tube is along dampening
The Way out of mouthful bottom exhaust column, the rear end of gas injection tube is connected with the front end of blast sebific duct, the rear end of blast sebific duct and
Compressed air distributor is connected, and compressed air distributor is connected with compressed air piping.
Above-mentioned continuous casting intermediate inlet toasts bottom extractor fan online, and the upper end of mouth of a river bottom exhaust column is bowl-mouth shape,
Upper end the rim of a bowl of mouth of a river bottom exhaust column is enclosed under the mouth of a river in the outlet of mouth, under the rim of a bowl inwall of mouth of a river bottom exhaust column and the mouth of a river outside mouth
There is sealing gasket to be tightly connected between wall.
Above-mentioned continuous casting intermediate inlet toasts bottom extractor fan online, and the two ends of the blast sebific duct pass through rubber tube clip respectively
Hoop is connected with gas injection tube and compressed air distributor, in the compressed air piping being connected with compressed air distributor
Gas flowmeter and gas gauge are installed.
Above-mentioned continuous casting intermediate inlet toasts bottom extractor fan online, and it also has bracket, hook and counterweight, and bracket is
The body of rod, one end of the bracket body of rod is connected with the top of mouth of a river exhaust column, the other end connection counterweight of the bracket body of rod, hook
Upper end be connected with mouth of a river Xia Kou, the lower end of hook in the middle part of the bracket body of rod with being connected.
The beneficial effects of the utility model：
The utility model breaches conventional mouth of a river bottom air-draft-type baking theory and method, and the mouth of a river of the present utility model is online
Toast bottom exhausting theory and existing conventional theory is completely different, conventional bottom exhausting theory is in air draft pipe by high-power air exhauster
Interior generation negative pressure, requires high to equipment energy consumption and serviceability rate.The utility model uses gas injection drainage technology, empty using compression
Gas carry out the exhausting drainage of mouth of a river bottom, with simple mouth of a river bottom exhaust column and gas injection tube combination instead of high-power air exhauster and
Air draft pipe, has both reached lifting bottom exhausting efficiency of utilization, has improved the purpose of mouth of a river preheating temperature, equipment is significantly reduced again
Input and energy medium expense.
The utility model principle is simple, device simple and easy to maintenance, can effectively lift mouth of a river preheating temperature, prevent
Production and quality accident caused by stopper, submersed nozzle preheating temperature deficiency, at the same reduce equipment and energy medium into
This, with significant economic benefit.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Marked in figure as follows：Mouth of a river bottom exhaust column 1, gas injection tube 2, blast sebific duct 3, bracket 4, hook 5, compressed air
Distributor 6, counterweight 7, sebific duct clamp 8.
Embodiment
The utility model is by mouth of a river bottom exhaust column 1, gas injection tube 2, blast sebific duct 3, bracket 4, hook 5, compressed air
Distributor 6, counterweight 7, sebific duct clamp 8 are constituted.
Shown in figure, mouth of a river bottom exhaust column 1 is L-shaped pipe, and the upper end of mouth of a river bottom exhaust column 1 is bowl-mouth shape, mouth of a river bottom exhausting
Upper end the rim of a bowl of pipe 1 is enclosed under the mouth of a river in the outlet of mouth, is had under the rim of a bowl inwall of mouth of a river bottom exhaust column 1 and the mouth of a river between mouth outer wall
Sealing gasket is tightly connected.
Shown in figure, the front end of gas injection tube 2 is fixedly connected on the L-shaped bending place of mouth of a river bottom exhaust column 1, gas injection
Way out of the spout direction of pipe 2 along mouth of a river bottom exhaust column 1.
Shown in figure, the rear end of gas injection tube 2 is connected by sebific duct clamp 8 with the front end of blast sebific duct 3, blast glue
The rear end of pipe 3 is connected by sebific duct clamp 8 with compressed air distributor 6, compressed air distributor 6 and compressed air piping phase
Connection.Gas flowmeter and gas gauge are installed in the compressed air piping being connected with compressed air distributor 6.
Shown in figure, bracket 4 is the body of rod, one end of the body of rod of bracket 4 is connected with the top of mouth of a river exhaust column 1, the bar of bracket 4
The other end connection counterweight 7 of body, the upper end of hook 5 is connected with mouth of a river Xia Kou, lower end and the body of rod of bracket 4 of hook 5
Middle part is connected.Counterweight 7 is adjusted, upper end the rim of a bowl portion of mouth of a river bottom exhaust column 1 can be made to keep close with submersed nozzle
With reference to, it is ensured that good seal.
Use step of the present utility model is as follows：
A. baking of tundish is opened after big fire, and mouth of a river bottom exhaust column 1 is connected by operative employee with the one end of bracket 4, then will support
The body of rod of frame 4 is connected by hook 5 with mouth under submersed nozzle, is adjusted the counterweight 7 of the body of rod other end of bracket 4, is made mouth of a river bottom
Upper end the rim of a bowl portion of exhaust column 1 keeps combining closely with submersed nozzle, it is ensured that good seal；
B. the two ends of blast sebific duct 3 are passed through into sebific duct clamp 8 and gas injection tube 2 and the phase of compressed air distributor 6 respectively
Connection；
C. the valve for opening the compressed air distributor 6 of mouth of a river preheating carries out the exhausting operation of mouth of a river bottom, observes compressed air
Gas flowmeter and gas gauge in pipeline, make the compressed air pressure of output control in 0.4Mpa, flow control exists
30NM3/h；
D. mouth of a river outer wall and air extractor tube wall glow situation are observed at any time during the exhausting of mouth of a river bottom, preheating is found
Effect difference replaceable seal or adjustment compressed air pressure flow.
In use, compressed air is sprayed at a high speed the utility model in the horizontal direction by gas injection tube 2, with water
Hot gas mixing in mouth bottom exhaust column 1, mouth of a river bottom exhaust column 1 is the pipe of a limited diameter, when gas quilt above
When pushing preceding to, gas below thins out and declines pressure, i.e., caused necessarily at the Horizontal Exit end of mouth of a river bottom exhaust column 1
Negative pressure, makes hot gas continuously be sucked and be discharged from the port of export.Exhausting flow can be effectively improved, and then improves the mouth of a river
Preheating temperature.
Table 1 is to carry out mouth of a river preheating time and temperature measuring data pair using the utility model and using conventional air exhauster
Than.
Table 1
| Index subjet | Air exhauster | The utility model |
| Preheat preceding mouth of a river temperature DEG C | 175 | 183 |
| Reach 600 DEG C of time min | 60 | 30 |
| Final baking temperature DEG C | 730 | 910 |
Tracking result shows that the utility model is compared with conventional air exhauster, increasing extent of temperature and submersed nozzle most final temperature
Degree is significantly improved.
Claims (4)
1. a kind of continuous casting intermediate inlet toasts bottom extractor fan online, it is characterised in that：It includes mouth of a river bottom exhaust column（1）、
Gas injection tube（2）, blast sebific duct（3）, compressed air distributor（6）, mouth of a river bottom exhaust column（1）For L-shaped pipe, mouth of a river bottom exhausting
Pipe（1）Upper end be connected with mouth of a river Xia Kou, gas injection tube（2）Front end be fixedly connected on mouth of a river bottom exhaust column（1）L-shaped
Bending place, gas injection tube（2）Spout direction along mouth of a river bottom exhaust column（1）Way out, gas injection tube（2）After
End and blast sebific duct（3）Front end be connected, blast sebific duct（3）Rear end and compressed air distributor（6）It is connected, compression is empty
Qi leel orchestration（6）It is connected with compressed air piping.
2. continuous casting intermediate inlet according to claim 1 toasts bottom extractor fan online, it is characterised in that：The mouth of a river
Bottom exhaust column（1）Upper end be bowl-mouth shape, mouth of a river bottom exhaust column（1）Upper end the rim of a bowl be enclosed under the mouth of a river in the outlet of mouth, the mouth of a river
Bottom exhaust column（1）The rim of a bowl inwall and the mouth of a river under there is sealing gasket to be tightly connected between mouth outer wall.
3. continuous casting intermediate inlet according to claim 2 toasts bottom extractor fan online, it is characterised in that：The blast
Sebific duct（3）Two ends pass through sebific duct clamp respectively（8）With gas injection tube（2）And compressed air distributor（6）Be connected, with
Compressed air distributor（6）Gas flowmeter and gas gauge are installed in the compressed air piping being connected.
4. continuous casting intermediate inlet according to claim 3 toasts bottom extractor fan online, it is characterised in that：It also has support
Frame（4）, hook（5）And counterweight（7）, bracket（4）For the body of rod, bracket（4）One end of the body of rod and mouth of a river exhaust column（1）It is upper
Portion is connected, bracket（4）The other end connection counterweight of the body of rod（7）, hook（5）Upper end be connected with mouth of a river Xia Kou, hang
Hook（5）Lower end and bracket（4）It is connected in the middle part of the body of rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720296179.9U CN206588342U (en) | 2017-03-24 | 2017-03-24 | A kind of continuous casting intermediate inlet toasts bottom extractor fan online |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720296179.9U CN206588342U (en) | 2017-03-24 | 2017-03-24 | A kind of continuous casting intermediate inlet toasts bottom extractor fan online |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206588342U true CN206588342U (en) | 2017-10-27 |
Family
ID=60121463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720296179.9U Expired - Fee Related CN206588342U (en) | 2017-03-24 | 2017-03-24 | A kind of continuous casting intermediate inlet toasts bottom extractor fan online |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206588342U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106862548A (en) * | 2017-03-24 | 2017-06-20 | 石家庄钢铁有限责任公司 | A kind of continuous casting intermediate inlet toasts bottom extractor fan and method online |
-
2017
- 2017-03-24 CN CN201720296179.9U patent/CN206588342U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106862548A (en) * | 2017-03-24 | 2017-06-20 | 石家庄钢铁有限责任公司 | A kind of continuous casting intermediate inlet toasts bottom extractor fan and method online |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171027 Termination date: 20210324 |