CN1238432A - Air supply technology and apparatus for non-mechanical automatic lowering coal and controlling combustion in hot air furnace - Google Patents
Air supply technology and apparatus for non-mechanical automatic lowering coal and controlling combustion in hot air furnace Download PDFInfo
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- CN1238432A CN1238432A CN 99106073 CN99106073A CN1238432A CN 1238432 A CN1238432 A CN 1238432A CN 99106073 CN99106073 CN 99106073 CN 99106073 A CN99106073 A CN 99106073A CN 1238432 A CN1238432 A CN 1238432A
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Abstract
An air supply technology for hot-air furnace to control combustion by non-mechanically automatic lowering of coal features that after the combustion box of enclosed hot-air furnace is fully feed with coal by one stroke, it is enclosed, and an external controller is used to control the wind feed of blower, and in turn the combustion level of coal. Said hot-air furnace is composed of furnace body, coal-supply port and combustion box with air supply tube and central air-feeding tube in it. Said central air-feeding tube is connected via pipeline to external blower controlled by a controller. Its advantages are scientific air supply, automatic control, saving labour, high thermal efficiency as coal burns in enclosed space, simple structure, convenient operation, and high utilization rate of enegy.
Description
The present invention relates to heating system, air feeding technique and the device therefor thereof that coal can be controlled combustion heat wind furnace falls in particularly a kind of on-mechanical automatically.
Existing hot-blast stove generally adopts coal-fired stove, but this coal-fired stove exists following deficiency: coal at any time, and time-consuming; Fire box temperature is fluctuated, the hot blast temperature instability that makes output; Body of heater is easily burnt out, the easy coking of coal; Ash disposal repeatedly, stoking, promptly inconvenience is unhygienic again; Fired coal combustion is incomplete, and the utilization rate of coal is not high.
The purpose of this invention is to provide a kind of once fill it up with whole stove coal after, by the breather pipe in the stove, by the on-mechanical of heat demand control burning the air feeding technique that coal can be controlled combustion heat wind furnace falls automatically.
Another object of the present invention provides the used equipment of a kind of above-mentioned air feeding technique.
On-mechanical of the present invention falls coal automatically and can control the air feeding technique of combustion heat wind furnace and be included in the sealed automatic combustion hot-blast stove, disposable coal is filled it up with whole burner hearth, with common method coal is lighted, cold wind absorbs heat by the stove interior conduit, the hot blast of output is sent from the bottom of stove, by the intake of the outer controller control air blast of stove, and then the control burning of coal.
Wherein, described obturaging is that coal filling hole, ash disposal mouth with hot-blast stove all seals.
The intake of described controller control air blast is to decide according to the temperature of exporting hot blast.When the hot blast temperature of output did not reach set point of temperature, controller was exported a signal enabling air blast, and supplying gas by snorkel makes fired coal combustion in the stove; When the hot blast temperature of output reached set point of temperature, controller was exported a signal again and is turned off the blast, and does not at this moment have air in the stove, and fire coal is in a kind of burning state for the treatment of.
Air-supply process in the described stove adopts vertical snorkel at the burner hearth center, and balanced ventilation up and down makes coal be three-dimensional burning.
Coal falls in on-mechanical of the present invention automatically can be controlled the air feeding technique of combustion heat wind furnace and can also comprise that when the fired coal combustion of stove bottom becomes ash get final product ash disposal, the coal-fired on-mechanical in ash disposal upper back lands automatically, replenish coal-fired, to burn away.
On-mechanical of the present invention falls coal automatically and can control combustion heat wind furnace and comprise body of heater, the coal filling hole on body of heater top, the cold air inlet that is communicated with the body of heater top, in burner hearth, be provided with vertical ventilation duct, the center is provided with vertical snorkel, and the body of heater bottom is provided with ash disposal mouth, ash disposal handle and the hot-blast outlet that links to each other with ventilation duct; Described snorkel links to each other by the outer air blast of pipeline and body of heater, and described air blast is controlled by controller.
Wherein, described ventilation duct can evenly be provided with on the disc except that the center.
The top of described snorkel is sealed, and has aperture on tube wall, and the aperture is 3-7mm, and hole density is 4-40/dm
2, and press heat demand and definite hole count.
It is 97202755.6 controller that described controller can adopt the patent No..
Described cold air inlet can be communicated with circulating fan.
Coal falls in on-mechanical of the present invention automatically, and can to control the air feeding technique of combustion heat wind furnace scientific and reasonable, and its advantage is: add a dant, formulated leaving air temp after, only need remove twice ash every day, it is laborsaving to save worry; Controller heat as required blasts an amount of air in stove, coal is in airtight container internal combustion, and burning economizes coal, thermal efficiency height fully.
On-mechanical of the present invention fall automatically coal can control combustion heat wind furnace have simple in structure, easy to operate, burning fully, characteristics that energy utilization rate is high.The plane burning is changed into stereo burning, increased combustion range, both helped heat radiation and heat conduction, improved the thermal efficiency, reduced the hot-spot burning again, eliminated the overheated phenomenon of coking and fire tube, prolonged the service life of this stove.Can be used for the baking of agricultural economy crop, medicinal material and other material, also can be used for the heating of vegetables, flower shed and public place and household.
For example, for the baking oven that can bake the blue or green tobacco leaf of 1000Kg, the hot-blast stove that can be equipped with a coal capacity be 210Kg.In 5 days baking cycle, just can finish whole bake process like this as long as add a dant.In bake process, formulated leaving air temp earlier after, removing once in 12 hours, ash gets final product.From the baking result, because the temperature precise control, the tobacco leaf class has improved a lot, compares with earth roasting house, and class has improved 21%, and coal consumption is the dried cigarette of 1Kg/1.43Kg coal, economizes coal about 25%.
Further describe the present invention below in conjunction with drawings and Examples
Accompanying drawing 1 falls the structural representation that coal can be controlled combustion heat wind furnace automatically for on-mechanical of the present invention;
Accompanying drawing 2 falls the control circuit figure that coal can be controlled the controller of combustion heat wind furnace automatically for on-mechanical of the present invention;
Accompanying drawing 3 falls the circuit diagram that coal can be controlled the controller of combustion heat wind furnace automatically for on-mechanical of the present invention;
Wherein, label 1 is a cold air inlet, and 2 is circulating fan, and 3 is coal filling hole, and 4 is controller, and 5 is snorkel, and 6 is ventilation duct, and 7 is hot-blast outlet, and 8 is air blast, and 9 are the ash disposal mouth, and 10 are the ash disposal handle, and 11 is body of heater, R
T1Be EAT measuring transducer, Ic
1Be compensation linear amplifier, A
1For EAT shows, B
1Set for air intake, C is a driver, R
T2Be return air temperature measuring transducer, I
C2Be compensation linear amplifier, A
2For return air temperature shows that E is a subtracter, B
2Set for the temperature difference, D is a power lights, and F is the air blast lamp.
The air feeding technique that on-mechanical automatic coal reducing of the present invention can be controlled combustion heat wind furnace is included in sealed automatic combustion heat In the wind furnace, disposablely coal filling hole, the ash disposal mouth of hot-blast stove are all obturaged after coal is filled it up with whole burner hearth, cold wind is from the top Enter burner hearth, absorb heat by pipeline, the hot blast of output is sent from the bottom of stove, by the outer controller control of stove The air intake amount of air blast processed, and then the burning degree of control coal.
The air intake amount of described controller control air blast is that the temperature according to barn or other indoor needs decides. When When the hot blast temperature of output did not reach the regulation temperature, signal of controller output started air blast, by the pipe of supplying gas Supply gas and make fired coal combustion in the stove; When the hot blast temperature of output reached the regulation temperature, controller was exported again a signal and is stopped End air blast, at this moment do not have air in the stove, fire coal is in a kind of burning state for the treatment of. Air-supply process in the stove adopts vertically at stove The pipe of supplying gas at thorax center, evenly air-supply makes coal be three-dimensional burning up and down.
Coal falls in on-mechanical as shown in the figure automatically can control combustion heat wind furnace, it comprises body of heater 11, the coal filling hole 3 on body of heater top, the cold air inlet 1 that is communicated with the body of heater top, in burner hearth, be provided with vertical ventilation duct 6, the center is provided with vertical snorkel 5, the hot-blast outlet 7 that the body of heater bottom is provided with ash disposal mouth 9, ash disposal handle 10 and links to each other with ventilation duct; Described snorkel links to each other by the outer air blast 8 of pipeline and body of heater, and described air blast is by controller 4 controls.
Wherein, described cold air inlet can be communicated with circulating fan; Described ventilation duct can evenly be provided with on the disc except that the center; The top of described snorkel is sealed, and has aperture on tube wall, and the aperture is 4mm, and hole density is 10/dm2.
In the coal-fired disposable adding stove, the operator formulates the hot-blast outlet temperature according to the heat of its needs on controller, air blast air blast, fired coal combustion in the stove; When hot blast temperature reaches control when putting fixed temperature, controller will be exported a signal, turn off the blast, and at this moment not have air in the stove, and fire coal is in a kind of burning state for the treatment of.When hot blast temperature was lower than the temperature of formulation, controller was exported a signal again, and air blast is started working, and coal begins an amount of burning again.So repeatedly, till whole stove coal burns down.
The described controller employing patent No. is 97202755.6 controller.Controller is by sensor R
T1And R
T2The actual temperature that records is become the signal of telecommunication, through I
C1And I
C2After the amplification, the one tunnel goes to show, the one tunnel puts definite value earlier with thing light goes comparison; When fiducial value when putting definite value, a signal arrives driver, deenergization turns off the blast; When fiducial value when putting definite value, another signal arrives the closed power supply of driver, beginning air blast.This process is controlled intake exactly according to the demand of heat, makes coal combustion, and the heat that burning produces is put fixed temperature with the air heat that blasts to controller and sent through heat exchanger.
Claims (10)
1, the air feeding technique that coal can be controlled combustion heat wind furnace falls in a kind of on-mechanical automatically, it is characterized in that being included in the closed hot-blast stove, disposable coal is filled it up with whole burner hearth, with common method coal is lighted, cold wind is by the stove interior conduit, the hot blast of output is sent from the bottom of stove, by the intake of the outer controller control air blast of stove, and then the control burning of coal.
2, air feeding technique as claimed in claim 1 is characterized in that described obturaging is that coal filling hole, ash disposal mouth with hot-blast stove all seals.
3, air feeding technique as claimed in claim 1 is characterized in that the intake of described controller control air blast is to decide according to the temperature of exporting hot blast.When the hot blast temperature of output did not reach set point of temperature, controller was exported a signal enabling air blast, and supplying gas by snorkel makes fired coal combustion in the stove; When the hot blast temperature of output reached set point of temperature, controller was exported a signal again and is turned off the blast, and does not at this moment have air in the stove, and fire coal is in a kind of burning state for the treatment of.
4, air feeding technique as claimed in claim 1 is characterized in that the air-supply process in the described stove adopts vertical snorkel at the burner hearth center, and balanced ventilation up and down makes coal be three-dimensional burning.
5, air feeding technique as claimed in claim 1 is characterized in that also comprising when the fired coal combustion of stove bottom becomes ash, gets final product ash disposal, and the coal-fired on-mechanical in ash disposal upper back lands automatically, replenishes fire coal, to burn away.
6, as the described air feeding technique device therefor of claim 1-5, it is characterized in that comprising body of heater, the coal filling hole on body of heater top, the cold air inlet that is communicated with the body of heater top, in burner hearth, be provided with vertical ventilation duct, the center is provided with vertical snorkel, and the body of heater bottom is provided with ash disposal mouth, ash disposal handle and the hot-blast outlet that links to each other with ventilation duct; Described snorkel links to each other by the outer air blast of pipeline and body of heater, and described air blast is controlled by controller.
7, equipment as claimed in claim 6 is characterized in that described ventilation duct evenly is provided with on the disc except that the center.
8, equipment as claimed in claim 6 is characterized in that the top of described snorkel is sealed, and has aperture on tube wall, and the aperture is 3-7mm, and hole density is 4-40/dm
2, and press heat demand and definite hole count.
9, equipment as claimed in claim 6 is characterized in that the described controller employing patent No. is 97202755.6 controller.
10, equipment as claimed in claim 6 is characterized in that described cold air inlet is communicated with circulating fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99106073 CN1238432A (en) | 1999-04-30 | 1999-04-30 | Air supply technology and apparatus for non-mechanical automatic lowering coal and controlling combustion in hot air furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99106073 CN1238432A (en) | 1999-04-30 | 1999-04-30 | Air supply technology and apparatus for non-mechanical automatic lowering coal and controlling combustion in hot air furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1238432A true CN1238432A (en) | 1999-12-15 |
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ID=5272243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99106073 Pending CN1238432A (en) | 1999-04-30 | 1999-04-30 | Air supply technology and apparatus for non-mechanical automatic lowering coal and controlling combustion in hot air furnace |
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|---|---|
| CN (1) | CN1238432A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895436A (en) * | 2017-03-22 | 2017-06-27 | 山东理工大学 | The device that glows of the powdered carbon fast low temperature burning of biomass molding fuel burning device |
-
1999
- 1999-04-30 CN CN 99106073 patent/CN1238432A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895436A (en) * | 2017-03-22 | 2017-06-27 | 山东理工大学 | The device that glows of the powdered carbon fast low temperature burning of biomass molding fuel burning device |
| CN106895436B (en) * | 2017-03-22 | 2018-10-26 | 山东理工大学 | The device that glows of the powdered carbon fast low temperature burning of biomass molding fuel burning device |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |