CN209802033U - Gas hot-blast stove belt dryer mechanism of continuous graining machine - Google Patents
Gas hot-blast stove belt dryer mechanism of continuous graining machine Download PDFInfo
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- CN209802033U CN209802033U CN201920121522.5U CN201920121522U CN209802033U CN 209802033 U CN209802033 U CN 209802033U CN 201920121522 U CN201920121522 U CN 201920121522U CN 209802033 U CN209802033 U CN 209802033U
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- 239000000779 smoke Substances 0.000 claims abstract description 49
- 239000007789 gas Substances 0.000 claims abstract description 24
- 238000001035 drying Methods 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000003546 flue gas Substances 0.000 claims abstract description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 30
- 239000003345 natural gas Substances 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000002407 reforming Methods 0.000 claims description 2
- 239000002649 leather substitute Substances 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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- Drying Of Solid Materials (AREA)
Abstract
The utility model provides a gas hot blast stove with a dryer mechanism of a continuous graining machine, which comprises a control module, an air temperature adjusting mechanism, a drying oven, a hot blast stove, a hot air output channel and a hot air multiplexing channel; the hot air output channel is communicated with a smoke distributing pipe of the oven; the air outlet of the oven is communicated with the hot blast stove through a hot air multiplexing channel; when materials in the drying oven are dried, hot flue gas output by the hot blast stove enters the drying oven, and air cooled after the materials are heated is returned to the hot blast stove through the hot air multiplexing channel to be heated again; the control module comprises a PLC; the wind temperature adjusting mechanism comprises a temperature sensor, a D/A converter, an A/D converter and a variable frequency regulator which are connected with the PLC; the temperature sensor is arranged at the oven; the utility model discloses can be in synthetic leather production to the stable heat supply of oven.
Description
Technical Field
The utility model belongs to the technical field of the synthetic leather heat supply technique and specifically relates to continuous boarding machine gas hot-blast furnace takes drying-machine mechanism.
Background
In the production process of the synthetic leather, the air discharged by the continuous graining machine oven is not subjected to reasonable waste heat recovery, so that the fuel consumption is increased, and certain heat loss is caused.
At present, the majority of heat supply modes used in the production of domestic synthetic leather are centralized heat supply of a coal-fired heat-conducting oil furnace, and related patents also exist on natural gas heat supply technologies of synthetic leather, but in the actual transformation process, the number of equipment is large, the number of working procedures is large, the transformation period is long, the influence on the original equipment is large, and the recovery is difficult. The key point is that in the actual heat supply process, hot air is conveyed to the oven through the long-distance air pipe, so that the temperature of the hot air entering the oven is unstable, the requirement on the temperature stability of synthetic leather production is extremely high, and a heat supply technology capable of stabilizing is needed; the key point is that in the actual heat supply process, the wind resistance of hot air passing through a plurality of devices is increased, and the air circulation device of the original system cannot normally operate, so that a heat supply technology with low wind resistance is needed.
Disclosure of Invention
The utility model provides a rub line machine gas hot-blast furnace area drying-machine mechanism in succession can be in synthetic leather production to the stable heat supply of oven.
The utility model adopts the following technical scheme.
The continuous graining machine gas hot blast stove is provided with a dryer mechanism, and the mechanism comprises a control module, a wind temperature adjusting mechanism, a drying oven (1), a hot blast stove (11), a hot blast output channel (6) and a hot blast multiplexing channel; the hot air output channel is communicated with a smoke distributing pipe of the oven; the air outlet of the oven is communicated with the hot blast stove through a hot air multiplexing channel (8); when materials in the drying oven are dried, hot flue gas output by the hot blast stove enters the drying oven, and air cooled after the materials are heated is returned to the hot blast stove through the hot air multiplexing channel to be heated again;
The control module comprises a PLC; the wind temperature adjusting mechanism comprises a temperature sensor, a D/A converter, an A/D converter and a variable frequency regulator which are connected with the PLC; the temperature sensor is arranged at the oven.
the number of the baking ovens is more than two; each oven is communicated with the hot air output channel through an independent smoke distributing pipe; each oven is communicated with the hot air multiplexing channel through an independent return air branch pipe;
a circulating fan and a fresh air fan are arranged at the smoke distributing pipe; the fresh air machine is used for inputting smoke of the hot air output channel into the smoke distributing pipe; the circulating fan sends the smoke in the smoke distributing pipe to the oven;
When the number of the drying ovens is two, the two drying ovens are respectively communicated with the hot air output channel through a first smoke distributing pipe (5) and a second smoke distributing pipe (13), the two drying ovens are respectively communicated with the hot air multiplexing channel through a first return air distributing pipe (7) and a second return air distributing pipe (12), a first circulating fan (2) and a first fresh air fan (4) are arranged at the first smoke distributing pipe (5), and a second circulating fan (15) and a second fresh air fan (14) are arranged at the second smoke distributing pipe.
The hot blast stove takes a natural gas burner (9) as a heat source, and the variable frequency regulator is connected with a first fresh air fan, a second fresh air fan and a natural gas burner air inlet pipe (10).
the temperature sensor is arranged at an air outlet of the oven and is used for measuring the air temperature at the air outlet; and the air outlet air temperature value measured by the temperature sensor is converted into a digital signal through the A/D converter and then is sent to the PLC.
the variable frequency regulator is connected with the D/A converter; the D/A converter is connected with the PLC to perform digital-to-analog conversion on a control signal output by the PLC; a wind temperature standard value is stored in the PLA; when the air temperature of the air outlet of the oven is greater than the standard air temperature value, the PLC outputs a gas valve control signal to the variable frequency regulator so as to reduce the air inflow of the natural gas burner; when the air temperature of the air outlet of the oven is smaller than the standard air temperature value, the PLC outputs a gas valve control signal to the variable frequency regulator so as to increase the air input of the natural gas burner.
The temperature sensor is also arranged in the oven to measure the temperature of hot air in the oven, and the air temperature value in the oven measured by the temperature sensor is converted into a digital signal by the A/D converter and then is sent to the PLC; when the air temperature in the oven box is greater than the standard air temperature value, the PLC outputs a fresh air machine control signal to the variable frequency regulator so as to reduce the smoke output quantity of the fresh air machine; when the air temperature in the oven box is less than the standard air temperature value, the PLC outputs a fresh air machine control signal to the variable frequency regulator so as to increase the smoke output quantity of the fresh air machine.
The hot air output channel, the hot air multiplexing channel, the smoke distributing pipe and the return air branch pipe are all provided with heat insulation structures; the pipe bodies at the joints of the hot air output channel, the hot air multiplexing channel, the smoke distributing pipe and the return air distributing pipe all adopt square air pipe structures.
When the mechanism is used for reforming an oven with a heat exchanger, two ends of the heat exchanger are respectively sealed by a first air duct flashboard (3) and a second air duct flashboard (16) to isolate the heat exchanger from an air duct.
the temperature sensor and the A/D converter are PCF8591 integrated with a thermistor; the PLC controller is selected to be PLC s 7-200; the a/D converter is optionally DAC712 UB.
the utility model has the advantages that the system can rapidly reform the heat supply mode of the box body in the synthetic leather production process, and has simple and novel structure, low wind resistance, uniform and stable temperature distribution and automatic temperature control; meanwhile, the natural gas and flue gas mixed tail gas is directly used as the mode of heating air, so that the use efficiency of the natural gas is effectively improved; the stable and high-elasticity heat supply mode ensures that the requirements of all procedures of synthetic leather production can be met.
When the mechanism is used for modifying the oven with the heat exchanger, the field old equipment does not need to be completely dismantled, the combustor can not be replaced, and the heat exchanger is not used, and only the air duct flashboard is installed to shield the heat exchanger from the air duct, so that the convenience of deployment is greatly improved.
Drawings
The invention will be described in further detail with reference to the following drawings and detailed description:
FIG. 1 is a schematic diagram of the present invention;
FIG. 2 is a schematic diagram of the present invention;
in the figure: 1-baking oven; 2-a first circulating fan; 3-a first air duct shutter; 4-a first fresh air fan; 5-a first smoke distributing pipe; 6-a hot air output channel; 7-a first return air branch pipe; 8-hot air multiplexing channel; 9-day gas burner; 10-day gas burner air inlet pipe; 11-a hot blast stove; 12-a second return air branch pipe; 13-a second smoke branch pipe; 14-a second fresh air machine; 15-a second circulating fan; 16-a second duct shutter; 101-heat exchanger.
Detailed Description
As shown in fig. 1-2, the gas hot-blast stove of the continuous graining machine is provided with a dryer mechanism, and the mechanism comprises a control module, a wind temperature adjusting mechanism, a drying oven 1, a hot-blast stove 11, a hot-blast output channel 6 and a hot-blast multiplexing channel; the hot air output channel is communicated with a smoke distributing pipe of the oven; the air outlet of the oven is communicated with the hot blast stove through a hot blast multiplexing channel 8; when materials in the drying oven are dried, hot flue gas output by the hot blast stove enters the drying oven, and air cooled after the materials are heated is returned to the hot blast stove through the hot air multiplexing channel to be heated again;
the control module comprises a PLC; the wind temperature adjusting mechanism comprises a temperature sensor, a D/A converter, an A/D converter and a variable frequency regulator which are connected with the PLC; the temperature sensor is arranged at the oven.
The number of the baking ovens is more than two; each oven is communicated with the hot air output channel through an independent smoke distributing pipe; each oven is communicated with the hot air multiplexing channel through an independent return air branch pipe;
A circulating fan and a fresh air fan are arranged at the smoke distributing pipe; the fresh air machine is used for inputting smoke of the hot air output channel into the smoke distributing pipe; the circulating fan sends the smoke in the smoke distributing pipe to the oven;
When the number of the baking ovens is two, the two baking ovens are respectively communicated with the hot air output channel through a first smoke distributing pipe 5 and a second smoke distributing pipe 13, the two baking ovens are respectively communicated with the hot air multiplexing channel through a first return air distributing pipe 7 and a second return air distributing pipe 12, a first circulating fan 2 and a first fresh air fan 4 are arranged at the first smoke distributing pipe 5, and a second circulating fan 15 and a second fresh air fan 14 are arranged at the second smoke distributing pipe.
The hot blast stove takes a natural gas burner 9 as a heat source, and the variable frequency regulator is connected with a first fresh air fan, a second fresh air fan and a natural gas burner air inlet pipe 10.
The temperature sensor is arranged at an air outlet of the oven and is used for measuring the air temperature at the air outlet; and the air outlet air temperature value measured by the temperature sensor is converted into a digital signal through the A/D converter and then is sent to the PLC.
the variable frequency regulator is connected with the D/A converter; the D/A converter is connected with the PLC to perform digital-to-analog conversion on a control signal output by the PLC; a wind temperature standard value is stored in the PLA; when the air temperature of the air outlet of the oven is greater than the standard air temperature value, the PLC outputs a gas valve control signal to the variable frequency regulator so as to reduce the air inflow of the natural gas burner; when the air temperature of the air outlet of the oven is smaller than the standard air temperature value, the PLC outputs a gas valve control signal to the variable frequency regulator so as to increase the air input of the natural gas burner.
The temperature sensor is also arranged in the oven to measure the temperature of hot air in the oven, and the air temperature value in the oven measured by the temperature sensor is converted into a digital signal by the A/D converter and then is sent to the PLC; when the air temperature in the oven box is greater than the standard air temperature value, the PLC outputs a fresh air machine control signal to the variable frequency regulator so as to reduce the smoke output quantity of the fresh air machine; when the air temperature in the oven box is less than the standard air temperature value, the PLC outputs a fresh air machine control signal to the variable frequency regulator so as to increase the smoke output quantity of the fresh air machine.
The hot air output channel, the hot air multiplexing channel, the smoke distributing pipe and the return air branch pipe are all provided with heat insulation structures; the pipe bodies at the joints of the hot air output channel, the hot air multiplexing channel, the smoke distributing pipe and the return air distributing pipe all adopt square air pipe structures.
When the mechanism is used for transforming an oven with the heat exchanger 101, two ends of the heat exchanger 101 are respectively sealed by the first air duct shutter 3 and the second air duct shutter 16 to isolate the heat exchanger from an air duct.
The temperature sensor and the A/D converter are PCF8591 integrated with a thermistor; the PLC controller is selected to be PLC s 7-200; the a/D converter is optionally DAC712 UB.
Example (b):
When an oven with a heat exchanger is modified, two ends of the heat exchanger 101 are respectively sealed by a first air duct flashboard 3 and a second air duct flashboard 16, and then a smoke distributing pipe and an air return branch pipe of the mechanism are connected into an air duct where the original heat exchanger is located; when the mechanism works, hot flue gas output by the hot air blower directly enters the oven without passing through the heat exchanger, and the air cooled after heating the materials is returned to the hot air furnace for reheating through the hot air multiplexing channel; thereby reducing the length of the air flow path and improving the thermal efficiency.
Claims (9)
1. Rub line machine gas hot-blast furnace area drying-machine mechanism in succession, its characterized in that: the mechanism comprises a control module, an air temperature adjusting mechanism, a drying oven (1), a hot air furnace (11), a hot air output channel (6) and a hot air multiplexing channel; the hot air output channel is communicated with a smoke distributing pipe of the oven; the air outlet of the oven is communicated with the hot blast stove through a hot air multiplexing channel (8); when materials in the drying oven are dried, hot flue gas output by the hot blast stove enters the drying oven, and air cooled after the materials are heated is returned to the hot blast stove through the hot air multiplexing channel to be heated again;
The control module comprises a PLC; the wind temperature adjusting mechanism comprises a temperature sensor, a D/A converter, an A/D converter and a variable frequency regulator which are connected with the PLC; the temperature sensor is arranged at the oven.
2. The continuous graining machine gas hot blast stove belt dryer mechanism as claimed in claim 1, wherein: the number of the baking ovens is more than two; each oven is communicated with the hot air output channel through an independent smoke distributing pipe; each oven is communicated with the hot air multiplexing channel through an independent return air branch pipe;
a circulating fan and a fresh air fan are arranged at the smoke distributing pipe; the fresh air machine is used for inputting smoke of the hot air output channel into the smoke distributing pipe; the circulating fan sends the smoke in the smoke distributing pipe to the oven;
When the number of the drying ovens is two, the two drying ovens are respectively communicated with the hot air output channel through a first smoke distributing pipe (5) and a second smoke distributing pipe (13), the two drying ovens are respectively communicated with the hot air multiplexing channel through a first return air distributing pipe (7) and a second return air distributing pipe (12), a first circulating fan (2) and a first fresh air fan (4) are arranged at the first smoke distributing pipe (5), and a second circulating fan (15) and a second fresh air fan (14) are arranged at the second smoke distributing pipe.
3. The continuous graining machine gas hot blast stove belt dryer mechanism as claimed in claim 2, wherein: the hot blast stove takes a natural gas burner (9) as a heat source, and the variable frequency regulator is connected with a first fresh air fan, a second fresh air fan and a natural gas burner air inlet pipe (10).
4. The continuous graining machine gas hot blast stove belt dryer mechanism as claimed in claim 3, wherein: the temperature sensor is arranged at an air outlet of the oven and is used for measuring the air temperature at the air outlet; and the air outlet air temperature value measured by the temperature sensor is converted into a digital signal through the A/D converter and then is sent to the PLC.
5. The continuous graining machine gas hot blast stove belt dryer mechanism as claimed in claim 4, wherein: the variable frequency regulator is connected with the D/A converter; the D/A converter is connected with the PLC to perform digital-to-analog conversion on a control signal output by the PLC; the PLC is stored with a standard value of wind temperature; when the air temperature of the air outlet of the oven is greater than the standard air temperature value, the PLC outputs a gas valve control signal to the variable frequency regulator so as to reduce the air inflow of the natural gas burner; when the air temperature of the air outlet of the oven is smaller than the standard air temperature value, the PLC outputs a gas valve control signal to the variable frequency regulator so as to increase the air input of the natural gas burner.
6. the continuous graining machine gas hot blast stove belt dryer mechanism as claimed in claim 5, wherein: the temperature sensor is also arranged in the oven to measure the temperature of hot air in the oven, and the air temperature value in the oven measured by the temperature sensor is converted into a digital signal by the A/D converter and then is sent to the PLC; when the air temperature in the oven box is greater than the standard air temperature value, the PLC outputs a fresh air machine control signal to the variable frequency regulator so as to reduce the smoke output quantity of the fresh air machine; when the air temperature in the oven box is less than the standard air temperature value, the PLC outputs a fresh air machine control signal to the variable frequency regulator so as to increase the smoke output quantity of the fresh air machine.
7. the continuous graining machine gas hot blast stove belt dryer mechanism as claimed in claim 2, wherein: the hot air output channel, the hot air multiplexing channel, the smoke distributing pipe and the return air branch pipe are all provided with heat insulation structures; the pipe bodies at the joints of the hot air output channel, the hot air multiplexing channel, the smoke distributing pipe and the return air distributing pipe all adopt square air pipe structures.
8. The continuous graining machine gas hot blast stove belt dryer mechanism as claimed in claim 2, wherein: when the mechanism is used for reforming an oven with a heat exchanger, two ends of the heat exchanger are respectively sealed by a first air duct flashboard (3) and a second air duct flashboard (16) to isolate the heat exchanger from an air duct.
9. The continuous graining machine gas hot blast stove belt dryer mechanism as claimed in claim 1, wherein: the temperature sensor and the A/D converter are PCF8591 integrated with a thermistor; the PLC is selected to be PLC s 7-200; the a/D converter is optionally DAC712 UB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920121522.5U CN209802033U (en) | 2019-01-24 | 2019-01-24 | Gas hot-blast stove belt dryer mechanism of continuous graining machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920121522.5U CN209802033U (en) | 2019-01-24 | 2019-01-24 | Gas hot-blast stove belt dryer mechanism of continuous graining machine |
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| Publication Number | Publication Date |
|---|---|
| CN209802033U true CN209802033U (en) | 2019-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920121522.5U Expired - Fee Related CN209802033U (en) | 2019-01-24 | 2019-01-24 | Gas hot-blast stove belt dryer mechanism of continuous graining machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612255A (en) * | 2019-01-24 | 2019-04-12 | 福州大学 | The continuous drying machine mechanism of boarding machine fuel gas hot-blast stove |
-
2019
- 2019-01-24 CN CN201920121522.5U patent/CN209802033U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612255A (en) * | 2019-01-24 | 2019-04-12 | 福州大学 | The continuous drying machine mechanism of boarding machine fuel gas hot-blast stove |
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| GR01 | Patent grant | ||
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Granted publication date: 20191217 |