CN206127364U - To steel rolling for heating furnace coal gas freeze equipment of releasing of moisture - Google Patents
To steel rolling for heating furnace coal gas freeze equipment of releasing of moisture Download PDFInfo
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- CN206127364U CN206127364U CN201621070591.0U CN201621070591U CN206127364U CN 206127364 U CN206127364 U CN 206127364U CN 201621070591 U CN201621070591 U CN 201621070591U CN 206127364 U CN206127364 U CN 206127364U
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Abstract
The utility model provides a to steel rolling for heating furnace coal gas freeze equipment of releasing of moisture belongs to steel hot rolling and coal chemical industry technology field. This equipment includes heat transfer device, gas drainer, lithium bromide cooling water set, wet temperature measuring system and pipe -line system platform. Heat transfer device is equipped with gas / gas heat exchanger, gas water heat exchanger, and the gas drainer below is equipped with the pond that is used for the storage water, and the lithium bromide cooling water set is equipped with steam input pipe way, cooling water discrepancy pipeline and lithium bromide cold water device, and the temperature and humidity measurement system is equipped with temperature and humidity transmitter, data transmission line, data processing device and display screen, and the pipe -line system platform is the single unit system that bears whole coal gas, steam, drain line and heat transfer device. This method is establish a whole set of to carry out a whole set of releasing of moisture system of effectively freezing releasing of moisture to wet coal gas, can ensure to solve the coal gas dehumidification problem of input heating furnace, improves the caloric power of gas, further reduces the wire rod decarbonization, improves product quality.
Description
Technical field
This utility model is related to steel hot rolling and technical field of coal chemical industry, particularly relates to a kind of to heater for rolling steel coal gas
Carry out freezing the device and method of dehumidification.
Background technology
Development of iron ＆ steel industry, requires more and more higher to the product quality of Bar Wire Product in recent years, and current rolling mill furnace is big
Heated using coal gas of converter more, because wire product has decarburization, it is that product burns that coal gas of converter water content is larger by analysis
Damage increases, the one of the main reasons that decarburization is serious, and product surface quality occurs problem, causes in Bar Wire Product distortion, cracking etc.
The lifting of product specification the problems such as of poor quality, is seriously hindered, quality objection can be continuous, need thoroughly to solve, need to turning
Producer gas dehumidification carries out research and seems most important and urgent.According to technological requirement, coal gas dehumidifying can be set on gas piping
Device, can so solve, into heating producer gas dehumidifying problem, to improve calorific value of gas, further reduce wire rod decarburization, carry
High yield quality.
Utility model content
The technical problems to be solved in the utility model is to provide and a kind of heater for rolling steel is carried out freezing dehumidification with coal gas
Device and method, reduce the water content of damp and hot coal gas of converter, to solve the increase of existing product scaling loss, decarburization seriously, product surface
Quality occurs problem, and the problems such as cause the inherent quality difference such as Bar Wire Product distortion, cracking.
The equipment includes heat-exchanger rig, coal gas drainer, lithium bromide cooling-water machine group, wet temp detecting system and pipe-line system
Platform, wherein, heat-exchanger rig includes gas gas-heat exchanger, gas water heat exchanger, lithium bromide cooling-water machine group include steam input pipe,
Cooling water discrepancy pipeline and lithium cold water installations, temperature/humiditydetection detection system include humiture transducer, data transmission link, number
According to processing meanss and display screen；
Heat-exchanger rig, coal gas drainer, lithium bromide cooling-water machine group, temperature/humiditydetection detection system are arranged on pipe-line system platform
On, humiture transducer is arranged on gaspipe line, and gas gas-heat exchanger is gentle/and water- to-water heat exchanger is connected by gaspipe line, gas/
Water- to-water heat exchanger is connected by chilled water pipe with lithium cold water installations, and gas gas-heat exchanger is gentle/and water- to-water heat exchanger bottom is by row
Water pipe is connected with coal gas drainer, is provided with for storing the collecting-tank of water below coal gas drainer, lithium cold water installations with steam
Vapour intake line is connected with cooling water discrepancy pipeline, and the data of humiture transducer collection are sent to number by data transmission link
According to processing meanss and display screen.
Wherein, humiture transducer has four, is separately positioned on gaspipe line into gas gas-heat exchanger entrance, process
The gaspipe line outlet section of gas gas-heat exchanger intensification waste heat, gaspipe line are changed into water/gas heat exchanger entrance section, through water/gas
The gaspipe line outlet section of hot device frozen cooling.
Heat-exchanger rig include gas gas-heat exchanger it is gentle/water- to-water heat exchanger is each one, gas gas-heat exchanger selects rustless steel tubulation
Formula fixes sheet heat exchanger, model：1200, F=250m2；Gas water heat exchanger fixes sheet heat exchanger from rustless steel shell and tube,
Model：1000, F=230m2。
Coal gas drainer structure be vertical hydrolock water trap, disruptive pressure P：1.8m water columns, using two-stage above water seal,
Applicable pressure：Less than the coal gas of 15KPa.
Pipe-line system platform is made up of steel plate and Steel Structure, configures safety barrier and cat ladder, pipeline installed above and equipment,
Pipe-line system platform is arranged on high-altitude or ground according to technological requirement.
The method that coal gas freezes dehumidification is carried out using the equipment, is comprised the steps：
S1, disconnect coal gas main pipeline, series connection gas gas-heat exchanger it is gentle/water- to-water heat exchanger；
S2, setting gas gas-heat exchanger, are undertaken the damp and hot coal gas of input and are entered with the dry and cold coal gas just from the output of gas water heat exchanger
Row is exchanged；
S3, setting gas water heat exchanger, are undertaken the damp and hot coal gas of input and are entered with the chilled water just from the output of lithium bromide cooling-water machine group
Row is exchanged；
S4, setting coal gas drainer, undertake gas gas-heat exchanger, the excretory function of gas water heat exchanger condensate；
S5, setting humiture transducer, understand coal gas humiture situation in time；
S6, setting lithium bromide cooling-water machine group, by heat exchange is carried out between steam and lithium bromide, realize providing chilled water,
Chilled water carries out heat exchange in gas water heat exchanger with wet gas, and the chilled water after intensification is again introduced into lithium cold water installations
Cooled down, then carried out circulating cooling next time；
S7, by data transmission link, the data transfer of humiture transducer to data processing equipment；
S8, data processing equipment is utilized, by processing, temperature, humidity are shown on a display screen, extreme feelings are set
Condition alarm device, reminds operator to carry out manual intervention；
Coal gas after S9, dehumidifying intensification is conveyed toward at heating furnace by pipeline；
S10, work are completed.
Above-mentioned technical proposal of the present utility model has the beneficial effect that：
In such scheme, allow humid air to flow through low-temperature surface, the temperature of humid air is down to below dew point temperature, thus
Moisture condensation in humid air can be separated out, so as to reach the purpose for reducing water capacity in air.Its advantage is reliable operation,
Continuously can work, stable system performance.It is applicable in the occasion the method for dew point temperature higher than 4 DEG C.The device and method are carried
High gas temperature, is conducive to burning, it can be ensured that solve the coal gas dehumidifying problem of input heating furnace, improve calorific value of gas,
Wire rod decarburization, improve product quality are reduced further.
Description of the drawings
Fig. 1 is the device structure schematic diagram for carrying out freezing dehumidification to heater for rolling steel with coal gas of the present utility model.
Wherein：
1- humiture transducers；
2- gas gas-heat exchangers；
3- coal gas drainers；
4- gas water heat exchangers；
5- lithium cold water installations；
6- gaspipe lines；
7- drain pipies；
8- chilled water pipes；
9- cooling waters discrepancy pipeline；
10- steam input pipes；
11- pipe-line system platforms；
12- collecting-tanks；
13- data processing equipments and display screen.
Specific embodiment
To make the technical problems to be solved in the utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing
And specific embodiment is described in detail.
This utility model is used mostly coal gas of converter heating for current rolling mill furnace, and wire product has decarburization and asks
Topic, by analysis coal gas of converter water content it is larger be product scaling loss increase, the serious one of the main reasons of decarburization, product surface matter
Amount problem occurs, cause Bar Wire Product distortion, cracking etc. inherent quality difference the problems such as, design and has been explored, there is provided one kind
Heater for rolling steel is carried out to freeze the device and method of dehumidification with coal gas, can solve, into heating producer gas dehumidifying problem, to carry
High calorific value of gas, further reduces wire rod decarburization, and improve product quality makes properties of product more excellent, more with market
Competitiveness.
As shown in figure 1, for the structural representation of the equipment.In the equipment, heat-exchanger rig, coal gas drainer 3, lithium cold
Water dispenser group, temperature/humiditydetection detection system are arranged on pipe-line system platform 11, and humiture transducer 1 is arranged on gaspipe line 6,
Gas gas-heat exchanger 2 is gentle/and water- to-water heat exchanger 4 is connected by gaspipe line 6, and gas water heat exchanger 4 and lithium cold water installations 5 pass through
Chilled water pipe 8 is connected, and gas gas-heat exchanger 2 is gentle/and 4 bottom of water- to-water heat exchanger is connected with coal gas drainer 3 by drain pipe 7, coal
It is provided with below gas water trap 3 for storing the collecting-tank 12 of water, lithium cold water installations 5 and steam input pipe 10 and cooling water
The pipeline 9 that comes in and goes out is connected, and the data of the collection of humiture transducer 1 are sent to data processing equipment and display by data transmission link
Screen 13.
Wherein, humiture transducer 1 has four, is separately positioned on gaspipe line 6 into 2 entrance of gas gas-heat exchanger, Jing
Cross 6 outlet section of gaspipe line of 2 intensification waste heat of gas gas-heat exchanger, gaspipe line 6 to enter 4 entrance of water/gas heat exchanger, pass through
6 outlet section of gaspipe line of 4 frozen cooling of water/gas heat exchanger.
6 diameter 900mm of gaspipe line, 7 diameter 25mm of drain pipe, 8 diameter 100mm of chilled water pipe, cooling water discrepancy pipeline 9
Diameter 125mm, 10 diameter 65mm of steam input pipe.
Heat-exchanger rig includes 4 each one, gas gas-heat exchanger 2, gas water heat exchanger, and gas gas-heat exchanger 2 is arranged from rustless steel
Tubular type fixes sheet heat exchanger (1200, F=250m2), the damp and hot coal gas of input is undertaken with just from the dry and cold coal of gas water heat exchanger output
Gas is swapped, and sets gas flow：20000m3/h, as a result can be with coal gas of high temperature out temperature：About 53/45 DEG C, high-temperature coal
Gas imports and exports humidity：About 63.7/48.4g/kg, warm coal gas out temperature：About 10/40 DEG C, low temperature coal gas import and export humidity：About
7/7g/kg；Gas water heat exchanger 4 fixes sheet heat exchanger (1000, F=230m from rustless steel shell and tube2), undertake input damp and hot
Coal gas is swapped with the chilled water just from the output of lithium bromide cooling-water machine group, as a result warm coal gas out temperature：About 45/10 DEG C,
Warm coal gas imports and exports humidity：About 48.4/7g/kg, chilled-water flow：63.5t/h, chilled water out temperature：About 7/12 DEG C.
3 structure of coal gas drainer be vertical hydrolock water trap, disruptive pressure P：1.8m water columns, using multilevel water seal, fit
Use pressure：Less than the coal gas of 15KPa.By multiple overflow, it is ensured that water is departed from coal gas, it is ensured that coal gas is not revealed.Drain under water
Nearby it is used for storing the collecting-tank of water.
Comprising the following steps that using the equipment：
S1, disconnect coal gas main pipeline, series connection gas gas-heat exchanger it is gentle/water- to-water heat exchanger；
S2, setting gas gas-heat exchanger, are undertaken the damp and hot coal gas of input and are entered with the dry and cold coal gas just from the output of gas water heat exchanger
Row is exchanged；
S3, setting gas water heat exchanger, are undertaken the damp and hot coal gas of input and are entered with the chilled water just from the output of lithium bromide cooling-water machine group
Row is exchanged；
S4, setting coal gas drainer, undertake gas gas-heat exchanger, the excretory function of gas water heat exchanger condensate；
S5, setting humiture transducer, understand coal gas humiture situation in time；
S6, setting lithium bromide cooling-water machine group, by heat exchange is carried out between steam and lithium bromide, realize providing chilled water,
Chilled water carries out heat exchange in gas water heat exchanger with wet gas, and the chilled water after intensification is again introduced into lithium cold water installations
Cooled down, then carried out circulating cooling next time；
S7, by data transmission link, the data transfer of humiture transducer to data processing equipment；
S8, data processing equipment is utilized, by processing, temperature, humidity are shown on a display screen, extreme feelings are set
Condition alarm device, reminds operator to carry out manual intervention；
Coal gas after S9, dehumidifying intensification is conveyed toward at heating furnace by pipeline；
S10, work are completed.
In use, about 53 DEG C of damp and hot coal gas initially enter gas gas-heat exchanger 2, are changed with the dry and cold coal gas after dehumidification
Heat and by pre-cooling.Subsequently into water/gas heat exchanger 4 and chilled water heat exchange, damp and hot coal gas is cooled to and is close to 10 DEG C.Cooled
Coal gas is entered people's coal gas drainer 3 and is separated with water smoke, and the water of precipitation is arranged to for storing the collecting-tank 12 of water.Dry and cold coal after dehumidification
Gas is entered people's gas gas-heat exchanger 2 and is exchanged heat with the wet gas into this device, makes full use of its cold, wet gas are dropped
Temperature, dry and cold coal gas obtain preheating and are close to 45 DEG C, improve its temperature, are conducive to burning.
Steam is input into lithium bromide cooling-water machine group, and water is freezed, chilled water by pipeline enter water/gas heat exchanger 4 with
Damp and hot coal gas heat exchange, the chilled water after intensification return to lithium bromide cooling-water machine group by pipeline and continue freezing, and recirculated cooling water is to bromine
Changing lithium handpiece Water Chilling Units carries out cooling down in itself, it is ensured that equipment safety operation, then carries out circulating cooling next time.
Wherein, humiture transducer 1 adopts humidity and temperature transmitter, and Relative Humidity Measuring scope is 0-100% full doses
Journey, up to 180 DEG C, proof pressure is 100bar to the maximum to temperature.
Pipe-line system platform is made up of steel plate and Steel Structure, configures safety barrier and cat ladder, pipeline installed above and equipment,
Pipe-line system platform is arranged on high-altitude or ground according to technological requirement, it is necessary to assure pipeline, equipment connection and reasonable arrangement, it is easy to operate,
It is safe and reliable.
This utility model reduces the water content of damp and hot coal gas of converter in such scheme, just, to solve existing product scaling loss
Increase, decarburization it is serious, product surface quality occurs problem, and the problems such as cause the inherent quality difference such as Bar Wire Product distortion, cracking,
A series of researchs and exploration have been carried out, the problems referred to above have been solved substantially.
The above is preferred implementation of the present utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of without departing from principle described in the utility model, some improvements and modifications can also be made, these improvement
Also protection domain of the present utility model is should be regarded as with retouching.
Claims (5)
- It is 1. a kind of that heater for rolling steel is carried out to freeze the equipment of dehumidification with coal gas, it is characterised in that：Including heat-exchanger rig, coal gas row Hydrophone, lithium bromide cooling-water machine group, wet temp detecting system and pipe-line system platform, wherein, heat-exchanger rig includes that gas gas exchange heat Device, gas water heat exchanger, lithium bromide cooling-water machine group include steam input pipe, cooling water discrepancy pipeline and lithium cold water installations, Temperature/humiditydetection detection system includes humiture transducer, data transmission link, data processing equipment and display screen；Heat-exchanger rig, coal gas drainer, lithium bromide cooling-water machine group, temperature/humiditydetection detection system are arranged on pipe-line system platform, temperature Humidity transmitter is arranged on gaspipe line, and gas gas-heat exchanger is gentle/and water- to-water heat exchanger is connected by gaspipe line, gas water heat exchange Device is connected by chilled water pipe with lithium cold water installations, gas gas-heat exchanger is gentle/water- to-water heat exchanger bottom by drain pipe with Coal gas drainer is connected, and is provided with for storing the collecting-tank of water below coal gas drainer, and lithium cold water installations are input into steam Pipeline is connected with cooling water discrepancy pipeline, and the data of humiture transducer collection are sent to data processing by data transmission link Device and display screen.
- It is 2. according to claim 1 that heater for rolling steel is carried out to freeze the equipment of dehumidification with coal gas, it is characterised in that：It is described Humiture transducer has four, is separately positioned on gaspipe line into gas gas-heat exchanger entrance, through gas gas-heat exchanger liter The gaspipe line outlet section of warm waste heat, gaspipe line enter water/gas heat exchanger entrance section, through water/gas heat exchanger frozen cooling Gaspipe line outlet section.
- It is 3. according to claim 1 that heater for rolling steel is carried out to freeze the equipment of dehumidification with coal gas, it is characterised in that：It is described Heat-exchanger rig include gas gas-heat exchanger it is gentle/water- to-water heat exchanger is each one, gas gas-heat exchanger selects rustless steel shell and tube fixed plate Heat exchanger, model：1200, F=250m2；Gas water heat exchanger fixes sheet heat exchanger, model from rustless steel shell and tube： 1000, F=230m2。
- It is 4. according to claim 1 that heater for rolling steel is carried out to freeze the equipment of dehumidification with coal gas, it is characterised in that：It is described Coal gas drainer structure be vertical hydrolock water trap, disruptive pressure P：1.8m water columns, using two-stage above water seal, are suitable for pressure Power：Less than the coal gas of 15KPa.
- It is 5. according to claim 1 that heater for rolling steel is carried out to freeze the equipment of dehumidification with coal gas, it is characterised in that：It is described Pipe-line system platform is made up of steel plate and Steel Structure, configures safety barrier and cat ladder, pipeline installed above and equipment, pipe-line system Platform is arranged on high-altitude or ground according to technological requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621070591.0U CN206127364U (en) | 2016-09-21 | 2016-09-21 | To steel rolling for heating furnace coal gas freeze equipment of releasing of moisture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621070591.0U CN206127364U (en) | 2016-09-21 | 2016-09-21 | To steel rolling for heating furnace coal gas freeze equipment of releasing of moisture |
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| CN206127364U true CN206127364U (en) | 2017-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621070591.0U Active CN206127364U (en) | 2016-09-21 | 2016-09-21 | To steel rolling for heating furnace coal gas freeze equipment of releasing of moisture |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106282518A (en) * | 2016-09-21 | 2017-01-04 | 北京科技大学 | Heater for rolling steel coal gas is carried out the Apparatus and method for of freezing dehumidification |
| CN108251594A (en) * | 2018-01-23 | 2018-07-06 | 上海云汇环保科技有限公司 | A kind of freezing dehumidification dust-extraction unit |
-
2016
- 2016-09-21 CN CN201621070591.0U patent/CN206127364U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106282518A (en) * | 2016-09-21 | 2017-01-04 | 北京科技大学 | Heater for rolling steel coal gas is carried out the Apparatus and method for of freezing dehumidification |
| CN108251594A (en) * | 2018-01-23 | 2018-07-06 | 上海云汇环保科技有限公司 | A kind of freezing dehumidification dust-extraction unit |
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