CN203657412U - Hot wind dryer system for drying steel sheets - Google Patents
Hot wind dryer system for drying steel sheets Download PDFInfo
- Publication number
- CN203657412U CN203657412U CN201320858518.XU CN201320858518U CN203657412U CN 203657412 U CN203657412 U CN 203657412U CN 201320858518 U CN201320858518 U CN 201320858518U CN 203657412 U CN203657412 U CN 203657412U
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- China
- Prior art keywords
- air
- proportional valve
- pneumatic proportional
- baking oven
- pipeline
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- Expired - Lifetime
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 28
- 239000010959 steel Substances 0.000 title claims abstract description 28
- 238000001035 drying Methods 0.000 title claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 229920000742 Cotton Polymers 0.000 claims description 3
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 3
- 238000007602 hot air drying Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000009500 colour coating Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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- Drying Of Solid Materials (AREA)
Abstract
The utility model discloses a hot wind dryer system for drying steel sheets. Air is delivered into a vapor heat exchanger for heating via an air inlet of a fan, the heated air is delivered into a drying oven to dry panels, and finally the air is vented via an air outlet of the drying oven. The air inlet of the fan is connected with a first pipeline and a second pipeline, a pneumatic proportional valve is arranged on the first pipeline, the air is input via the first pneumatic proportional valve, the other end of the second pipeline is connected with an air outlet of the drying oven, a second pneumatic proportional valve is arranged on the second pipeline, and a humidity transducer is arranged between the vapor heat exchanger and the drying oven. The first pneumatic proportional valve and the second pneumatic proportional valve are controlled to work by humidity signals measured by the humidity transducer; recycled hot air and flowing-in amount of the air are controlled by the humidity signals measured by the humidity transducer, so that recycling of the dried hot air is realized on the premise of guaranteeing hot air drying effect, heat utilization rate is increased, and energy conservation is realized.
Description
Technical field
The utility model relates to a kind of air flow dryer system, specifically a kind of dried steel sheet air flow dryer system.
Background technology
The steel plate that Plate Production enterprise produces is generally all needing with air flow dryer drying plate face after pickling line, galvanized wire and color-coating line clean, blower fan extracts air at room temperature and enters preheating in vapor heat exchanger, preheated air (is steel plate spraying to wet steel band, long and form banded) heat is passed to steel band when surface, take away the wet steam of belt steel surface simultaneously, thereby make wet steel band dry.
Dryer system sprays hot blast need be heated to 1100～1200 DEG C from 200 DEG C of room temperatures, and this part jets of heated air is being dried after belt steel surface, and all dissipation, causes great energy waste, and heat utilization ratio is not high.
In prior art, in stoving process section, some employing EGRs make hot air circulate utilization,, by this part lost gas is reclaimed, can realize energy-conservation.
But there is a problem in this: be mass transfer, the diabatic process of belt steel surface water-gas system with the dry physical process of steel, and in this process, the evaporation of belt steel surface moisture, moisture content reduces, temperature rise; Hot air temperature declines, and humidity increases (in air, carrying by transpiring moisture), and in the time that hot-air humidity is increased to a certain degree, its drying effect will decline.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of dried steel sheet air flow dryer system, and this system can realize recycling dry hot-air on the basis that ensures hot air dries effect.
In order to solve the problems of the technologies described above, technical scheme of the present invention is:
A kind of dried steel sheet air flow dryer system, comprise the motor-driven blower fan, vapor heat exchanger, temperature transmitter and the baking oven that connect successively by pipeline, air heats in fan air inlet is sent to vapor heat exchanger, gas transport after heating in baking oven for drying plate face, final gas is discharged through baking oven gas outlet, described fan air inlet is connected with the first pipeline and second pipe, on described the first pipeline, is provided with the first pneumatic proportional valve, and air is inputted through the first pneumatic proportional valve; The other end of described second pipe is connected with baking oven gas outlet, is provided with the second pneumatic proportional valve on described second pipe; Between described vapor heat exchanger and baking oven, be provided with humidity transmitter, moisture signal control the first pneumatic proportional valve and the second pneumatic proportional valve work that described humidity transmitter is measured.
On described vapor heat exchanger, be provided with admission line and outlet pipe, on admission line, be provided with control valve, between described vapor heat exchanger and baking oven, be provided with temperature transmitter, the work of the temperature signal control control valve that described temperature transmitter is measured.
At described baking oven gas outlet place, on described second pipe, be provided with filter, described filter is cotton paper filter.
The utility model is simple in structure, the hot-air of the moisture signal of measuring by humidity transmitter to recycle and reuse and the intake of air are controlled, on the basis that ensures hot air dries effect, realize recycling dry hot-air, improve the utilization rate of heat, realized energy-conservation object.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
As shown in Figure 1, dried steel sheet comprises by air flow dryer system blower fan 2, vapor heat exchanger 3, temperature transmitter 7, humidity transmitter 8 and the baking oven 9 that the motor 1 that connects successively by pipeline drives, and air is sent to the interior heating of vapor heat exchanger 3 through blower fan 2 air inlets.Blower fan 2 air inlets are connected with two pipelines, and respectively: the first pipeline 10 and second pipe 11, the first pipelines 10 are inputted air at room temperature to blower fan 2 air inlets, the hot-air that second pipe 11 is discharged baking oven 9 is collected input blower fan 2 air inlets.
On vapor heat exchanger 3, be provided with admission line 4 and outlet pipe 5, admission line 4, outlet pipe 5 are connected with import, the outlet of vapor heat exchanger 3 respectively, in admission line 4 or vapor heat exchanger 3 imports, control valve 6 is set, control valve 6 is for controlling the gas temperature that enters baking oven 9.
Between described vapor heat exchanger 3 and baking oven 9, be provided with temperature transmitter 7 and humidity transmitter 8.
The work of the temperature signal control control valve 6 that described temperature transmitter 7 is measured, for example thermometric is controlled control valve 6 taking 130 DEG C as target, when the temperature recording when temperature transmitter reaches 130 DEG C, the temperature signal recording is sent into PLC, after PLC processes, control the unlatching of control valve 6.Control valve 6 also can adoption rate valve.
Gas after heating in temperature transmitter 7 transfers to baking oven 9 for dry steel belt plate face, hot-air (is steel plate spraying to wet steel band, long and form banded) heat is passed to steel band when surface, take away the wet steam of belt steel surface simultaneously, thereby make wet steel band dry.Now discharge from baking oven 9 gas outlets with the hot-air (temperature declines) of certain humidity, enter in second pipe 11, the second pneumatic proportional valve 13 on second pipe 11 enters blower fan 2 air inlets, and air at room temperature enters blower fan 2 air inlets through the first pneumatic proportional valve 14 and the hot-air in second pipe 11.
The humidity transmitter 8 arranging between vapor heat exchanger 3 and baking oven 9 carries out moisture measurement to the air in the pipeline at humidity transmitter 8 places, and the signal recording is for controlling the first pneumatic proportional valve 14 and the second pneumatic proportional valve 13.The moisture signal recording can be sent into PLC particularly, after PLC processes, control the aperture of the first pneumatic proportional valve 14 and the second pneumatic proportional valve 13, control the ratio that passes into blower fan 2 interior damp-heat airs.
Like this, the amount that the first pipeline 10, the interior air of second pipe 11 enter the air inlet of blower fan is different, as, in the time of humidity >=60% that humidity transmitter 8 records, the first pneumatic proportional valve 14 standard-sized sheets, the second pneumatic proportional valve 13 is closed, and allows corresponding air-flow to pass through; In the time of humidity≤40% that humidity transmitter 8 records, the first pneumatic proportional valve 14 apertures, at 20%, the second pneumatic proportional valve 13 standard-sized sheets, allow corresponding air-flow to pass through, thereby can effectively control the humidity that passes into baking oven 9 interior hot-airs.
The hot-air of certain humidity enters baking oven 9 dries after steel plate, is discharged to second pipe 11 through baking oven 9 gas outlets.At baking oven 9 gas outlet places, on second pipe 11, be provided with filter 12 for filtering the impurity of hot-air, as filtered the zinc metal sheet coming off under hot-air impacts.At this, filter 12 can adopt cotton paper filter.
Above-described embodiment limits the utility model never in any form, and every employing is equal to replaces or technical scheme that the mode of equivalent transformation obtains all drops in protection domain of the present utility model.
Claims (4)
1. a dried steel sheet air flow dryer system, comprise the blower fan (2) of motor (1) driving connecting successively by pipeline, vapor heat exchanger (3) and baking oven (9), air is sent to heating in vapor heat exchanger (3) through blower fan (2) air inlet, gas transport after heating is interior for drying plate face to baking oven (9), final gas is discharged through baking oven (9) gas outlet, it is characterized in that: described blower fan (2) air inlet is connected with the first pipeline (10) and second pipe (11), on described the first pipeline (10), be provided with the first pneumatic proportional valve (14), air is inputted through the first pneumatic proportional valve (14), the other end of described second pipe (11) is connected with baking oven (9) gas outlet, is provided with the second pneumatic proportional valve (13) on described second pipe (11), between described vapor heat exchanger (3) and baking oven (9), be provided with humidity transmitter (8), moisture signal control the first pneumatic proportional valve (14) that described humidity transmitter (8) is measured and the second pneumatic proportional valve (13) work.
2. dried steel sheet according to claim 1 air flow dryer system, it is characterized in that: on described vapor heat exchanger (3), be provided with admission line (4) and outlet pipe (5), on admission line (4), be provided with control valve (6), between described vapor heat exchanger (3) and baking oven (9), be provided with temperature transmitter (7), the work of the temperature signal control control valve (6) that described temperature transmitter (7) is measured.
3. dried steel sheet according to claim 1 air flow dryer system, is characterized in that: at described baking oven (9) gas outlet place, be provided with filter (12) on described second pipe (11).
4. dried steel sheet according to claim 1 air flow dryer system, is characterized in that: described filter (12) is cotton paper filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320858518.XU CN203657412U (en) | 2013-12-24 | 2013-12-24 | Hot wind dryer system for drying steel sheets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320858518.XU CN203657412U (en) | 2013-12-24 | 2013-12-24 | Hot wind dryer system for drying steel sheets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203657412U true CN203657412U (en) | 2014-06-18 |
Family
ID=50923791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320858518.XU Expired - Lifetime CN203657412U (en) | 2013-12-24 | 2013-12-24 | Hot wind dryer system for drying steel sheets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203657412U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743219A (en) * | 2013-12-24 | 2014-04-23 | 烨辉（中国）科技材料有限公司 | Hot air dryer system for drying steel plates |
| CN110873527A (en) * | 2018-09-03 | 2020-03-10 | 中国瑞林工程技术股份有限公司 | Hot air heating system of matte mill |
-
2013
- 2013-12-24 CN CN201320858518.XU patent/CN203657412U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743219A (en) * | 2013-12-24 | 2014-04-23 | 烨辉（中国）科技材料有限公司 | Hot air dryer system for drying steel plates |
| CN110873527A (en) * | 2018-09-03 | 2020-03-10 | 中国瑞林工程技术股份有限公司 | Hot air heating system of matte mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |