CN104251549A - Direct-type gas hot blast stove - Google Patents
Direct-type gas hot blast stove Download PDFInfo
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- CN104251549A CN104251549A CN201410483901.0A CN201410483901A CN104251549A CN 104251549 A CN104251549 A CN 104251549A CN 201410483901 A CN201410483901 A CN 201410483901A CN 104251549 A CN104251549 A CN 104251549A
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Abstract
The invention relates to a direct-type gas hot blast stove which comprises a stove body. One end of the stove body is connected with a burner while the other end of the stove body is sequentially connected with an air adjusting section, a fireproof door, a hot blast barrel and an induced draft fan, the stove body comprises a square stove body frame and a square-seat round-arch hearth, a refractory brick layer, a refractory filling layer, a heat-insulating ash layer and a fiber felt layer are sequentially arranged between a round arch of the square-seat round-arch hearth and the stove body frame from inside to outside, a refractory brick layer and a fiber felt layer are sequentially arranged between a square seat of the square-seat round-arch hearth and the stove body frame from inside to outside, and a refractory brick layer and the fiber felt layer are sequentially arranged between the side wall of the square-seat round-arch hearth and the stove body frame front inside to outside. The direct-type gas hot blast stove utilizes natural gas which is clean energy as fuel, heat energy is directly utilized, and no heat exchanger is used, so that heat exchange efficiency loss is avoided; the direct-type gas hot blast stove has the advantages of cleanliness in hearth, long service life and the like, and can be applied to drying equipment in industry, agriculture and chemical engineering.
Description
Technical field
The present invention relates to a kind of hot-blast stove, especially a kind of direct-type fuel gas hot-blast stove.
Background technology
Grain heat-drying is the key link in grain-production process, is Main Means, adopts corresponding technique and technical measures with machinery, control temperature, humidity artificially, under the prerequisite not damaging grain quality, reduce grain moisture content, make its reach national security stock standard dry technology.General foodstuff drying device comprises hot-blast stove, drying tower, air channel, elevator etc., can reduce labor intensity, improve working conditions, raise labour productivity, and for realizing agriculture industrialization, intensive, modernization provides effective means.Hot-blast stove is the important component part of foodstuff drying device.Current hot-blast stove is generally coal furnace and uses coal as the energy, and the use of coal furnace is big for environment pollution, equipment relative complex.And flame and coal smoke must be converted into clean air and can use by coal burning.And direct-type fuel gas hot-blast stove is without heat exchanger conversion thermal energy, can natural gas be directly used to clean heat energy.Direct-type gas furnace replaces coal furnace hot-blast stove to be a kind of development and application trend.At China's industry, agricultural, chemical industry drying plant, have wide application prospects.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of direct-type fuel gas hot-blast stove, solving existing hot-blast stove fuel ring environment pollution large, the problems such as equipment relative complex, efficiency are low.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of direct-type fuel gas hot-blast stove, comprise body of heater, one end of described body of heater is connected with burner, the other end of body of heater is connected with in turn adjusts wind joint, fire resistant doorsets, thermal chimney and air-introduced machine, body of heater arranges relevant vent, explosion proof door and thermocouple, wherein, described body of heater comprises square furnace body frame and square block circular arch burner hearth, fire brick layer is set gradually from inside to outside between the circular arch of described square block circular arch burner hearth and furnace body frame, refractory material packing layer, insulation grieshoch and fibre felt layer, fire brick layer and fibre felt layer is set gradually from inside to outside between the square block and furnace body frame of square block circular arch burner hearth, fire brick layer and fibre felt layer is set gradually from inside to outside between the sidewall and furnace body frame of square block circular arch burner hearth, one end of described square block circular arch burner hearth is provided with air inlet, described air inlet is connected with burner, the other end of described square block circular arch burner hearth is provided with hot-blast outlet, described hot-blast outlet saves with tune wind and is connected, hot-blast outlet end is provided with firebreak.
Further, a preferred embodiment of the present invention is: described burner comprises burner body, one end of burner body is provided with Imported gas and pressurized air inlet, the other end of burner body is bocca, bocca is connected with air inlet, Imported gas sieves with gas spraying valve, air successively and is connected with combustible gas nozzle, and the gas outlet of combustible gas nozzle is provided with igniter.
Further, a preferred embodiment of the present invention is: described air sieve comprises three layers of pneumatic jig cylinder, and the sieve aperture of every layer of pneumatic jig cylinder staggers mutually, screen drum circumferential center of circle air intake.
Further, a preferred embodiment of the present invention is: described tune wind joint comprises three pieces of cylinder stationary airfoils and three pieces of cylinder slip aerofoils, cylinder stationary airfoil and cylinder slip aerofoil are crisscross arranged formation cylindrical air duct, slidable groove is provided with between cylinder stationary airfoil and cylinder slip aerofoil, on three pieces of cylinder stationary airfoil two ends welded flanges, mid point is welded on three pulley yokes, described pulley yoke comprises pulley cylinder and slide bar, described slide bar can slide along pulley cylinder, three pieces of cylinder slip aerofoil mid points are welded on three and adjust wind in coil, adjust wind that circle is installed together coil with adjusting wind by roller, cylinder slip aerofoil slides in slidable groove.
Further, a preferred embodiment of the present invention is: described refractory material packing layer is perlite filler layer.
Further, a preferred embodiment of the present invention is: described body of heater is that shaped steel welds the body of heater made.
Further, a preferred embodiment of the present invention is: described body of heater and burner be installed as heat insulation installation.
Beneficial effect of the present invention:
The spray speed that natural gas supply pressure produces, can enough suck required combustion air, saves electric power, saves equipment; Supply gas pressure only needs 0.025Mpa, can burn completely; The configuration of this device rationally, does not need to increase many self-checking devices and expense; Due to segmentation air-breathing, sectional combustion keeps at high temperature burning efficiency of combustion to reach 99.8%., natural gas 0.025-0.06Mpa, calorific value is not less than 80000kca/m.
Body of heater flame 2M place is provided with fire resisting wall, makes fuel gas Thorough combustion in burner hearth, and form the gas of high heat, gas forms hot blast rapidly under high-power air-introduced machine effect.Directly utilize heat energy, without any heat exchanger, do not produce heat and change loss in efficiency.Fire cleaning, the features such as long service life.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of direct-type fuel gas hot-blast stove of the present invention;
Fig. 2 is the structural representation of the furnace body frame in Fig. 1;
Fig. 3 is the structural representation of the body of heater in Fig. 1;
Fig. 4 is the structural representation of the square block circular arch burner hearth in Fig. 1;
Fig. 5 is the structural representation of the burner in Fig. 1;
Fig. 6 is that the A-A of Fig. 5 is to structural representation;
Fig. 7 is the structural representation of the tune wind joint in Fig. 1;
Fig. 8 is that the B-B of Fig. 7 is to structural representation;
Fig. 9 is the C portion enlarged drawing in Fig. 7;
Figure 10 is the D portion enlarged drawing in Fig. 7;
In figure, 1 is burner, 1-1 is filter, 1-2 is force (forcing) pump, 1-3 is pressure-control valve, 1-4 is flowmeter, 1-5 is overflow pressure-reducing valve, 1-6 is Pressure gauge, 1-7 is check valve, 1-8 is Imported gas, 1-9 is gas spraying valve, 1-10 is air sieve, 1-11 is sieve aperture, 1-12 is combustible gas nozzle, 1-13 is igniter, 1-14 is bocca, 1-15 is make-up air hole, 1-16 is blower fan, 2 for seeing vent, 3 is body of heater, 3-1 is furnace body frame, 3-2 is fibre felt layer, 3-3 is fire brick layer, 3-4 is insulation grieshoch, 3-5 is refractory material packing layer, 3-6 is thermocouple, 3-7 is firebreak, 3-8 is hot-blast outlet, 3-9 is building common brick layer, 3-10 is air inlet, 3-11 is square block circular arch burner hearth, 4 is explosion proof door, 5 for adjusting wind joint, 5-1 is cylinder stationary airfoil, 5-2 is flange, 5-3 is slidable groove, 5-4 is cylinder slip aerofoil, 5-5 is roller, 5-6 is for adjusting wind circle, 5-7 is slide bar, 5-8 is for adjusting wind coil, 5-9 is pulley cylinder, 6 is fire resistant doorsets, 7 is thermal chimney, 8 is air-introduced machine, a is jet angle.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Fig. 1 ~ 10, a kind of direct-type fuel gas hot-blast stove, comprise body of heater 3, one end of body of heater 3 is connected with burner 1, the other end of body of heater 3 is connected with in turn adjusts wind joint 5, fire resistant doorsets 6, thermal chimney 7 and air-introduced machine 8, body of heater 3 is provided with and sees vent 2, explosion proof door 4 and thermocouple 3-6, wherein, body of heater 3 comprises square furnace body frame 3-1 and square block circular arch burner hearth 3-11, fire brick layer 3-3 is set gradually from inside to outside between the circular arch of square block circular arch burner hearth 3-11 and furnace body frame 3-1, refractory material packing layer 3-5, insulation grieshoch 3-4 and fibre felt layer 3-2, fire brick layer 3-3 is set gradually from inside to outside between the square block and furnace body frame 3-1 of square block circular arch burner hearth 3-11, building common brick layer 3-9 and fibre felt layer 3-2, fire brick layer 3-3 and fibre felt layer 3-2 is set gradually from inside to outside between the sidewall and furnace body frame 3-1 of square block circular arch burner hearth 3-11, one end of square block circular arch burner hearth 3-11 is provided with air inlet 3-10, air inlet 3-10 is connected with burner 1, the other end of square block circular arch burner hearth 3-11 is provided with hot-blast outlet 3-8, hot-blast outlet 3-8 saves 5 with tune wind and is connected, hot-blast outlet 3-8 end is provided with firebreak 3-7.Arrange when the effect of building common brick layer 3-9 is body of heater installation concordant with ground, ensure the stability of body of heater.
Burner 1 comprises burner body, one end of burner body is provided with Imported gas 1-8 and pressurized air inlet, pressurized air inlet is provided with blower fan, 1-16, the other end of burner body is bocca 1-14, bocca 1-14 is connected with air inlet 3-10, and Imported gas 1-8 sieves 1-10 with gas spraying valve 1-9, air successively and is connected with combustible gas nozzle 1-12, and the gas outlet of combustible gas nozzle 1-12 is provided with igniter 1-13.
In actual moving process, the position can sieving 1-10 at air installs make-up air hole 1-15 additional, to increase the amount entering air, improves combustion efficiency.
The natural gas entering native system is pressurized natural gas, gas source, filter 1-1, force (forcing) pump 1-2, pressure-control valve 1-3, flowmeter 1-4, overflow pressure-reducing valve 1-5, Pressure gauge 1-6 and check valve 1-7 is once connected with at Imported gas 1-8, realize the pressure filtration to natural gas by this series of device, make the gas pressure entering burner 1 be 0.025-0.06Mpa.
Running of the present invention: through pretreated pressurized natural gas, in the ejection of natural gas nozzle, produces negative pressuren zone when natural gas ejection and draws air and enter suction pipe, produce combustion mixture around nozzle.Burning mixture fully mixes in air sieve 1-10, is then sprayed by flammable gas blowout group, lights under the effect of igniter 1-13, burner 1 spray pure, smokeless, at a high speed, the flame of high temperature.Be provided with fire resisting wall in body of heater 3, make fuel gas Thorough combustion in burner hearth, form the gas of high heat, gas forms hot blast rapidly under high-power air-introduced machine 8 acts on.Ignition temperature controls at 850-1000 DEG C, and air has under the effect of air-introduced machine 8 adjusts wind joint 5 to enter, and with the flame contact of high temperature, air is heated, and produce hot blast, hot blast entered fire resistant doorsets 6, thermal chimney 7, entered heating system.
Directly utilize heat energy, without any heat exchanger, do not produce heat and change loss in efficiency.
Preferably: air sieve 1-10 comprises three layers of pneumatic jig cylinder, and the sieve aperture 1-11 of every layer of pneumatic jig cylinder staggers mutually, screen drum circumferential center of circle air intake.Combustible gas nozzle 1-12 circumference has some apertures, sieve 1-10 through air enter secondary sieve aperture when around producing vacuum suction air under main air in combustion process and natural gas linear rate of flow airflow function, the main combustion mixture of straight line is impacted in further lateral airflow square crossing, makes it fully atomization and is convenient to burning.
Preferably: the jet angle a15-20 degree of burner 1, more preferably, jet angle a is 15 degree.Jet angle is set to the jet velocity that 15-20 degree can control thermal-flame effectively, can make fuel gas Thorough combustion in body of heater 3.
Preferably: adjust wind joint 5 to comprise three pieces of cylinder stationary airfoil 5-1 and three pieces of cylinder slip aerofoil 5-4, cylinder stationary airfoil 5-1 and cylinder slip aerofoil 5-4 is crisscross arranged formation cylindrical air duct, slidable groove 5-3 is provided with between cylinder stationary airfoil 5-1 and cylinder slip aerofoil 5-4, on three pieces of cylinder stationary airfoil 5-1 two ends welded flange 5-2, mid point is welded on three pulley yokes, pulley yoke comprises pulley cylinder 5-9 and slide bar, slide bar can slide along pulley cylinder 5-9, three pieces of cylinder slip aerofoil 5-4 mid points are welded on three and adjust wind on coil 5-8, adjust wind that circle 5-6 is installed together coil 5-8 with adjusting wind by roller 5-5, cylinder slip aerofoil 5-4 slides in slidable groove 5-3.The inlet of air conveniently can be controlled, the effective temperature regulating hot blast by above structure.
Preferably: refractory material packing layer 3-5 is perlite filler layer.
Preferably: body of heater 3 welds the body of heater made for shaped steel.
Preferably: body of heater 3 and burner 1 be installed as heat insulation installation, can prevent from scalding, make handling safety.
Preferably: air-introduced machine 8 is the high-power air-introduced machine 8 of 37Kw, air output 37500-47000m
3/ h impeller heating temperature: 180 DEG C.
Direct-type fuel gas hot-blast stove of the present invention is through the use of practice, and structure is simple, and security improves, burner hearth without dust stratification, the advantages such as prolongation in service life.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a direct-type fuel gas hot-blast stove, comprise body of heater, one end of described body of heater is connected with burner, the other end of body of heater is connected with in turn adjusts wind joint, fire resistant doorsets, thermal chimney and air-introduced machine, body of heater arranges relevant vent, explosion proof door and thermocouple, it is characterized in that: described body of heater comprises square furnace body frame and square block circular arch burner hearth, fire brick layer is set gradually from inside to outside between the circular arch of described square block circular arch burner hearth and furnace body frame, refractory material packing layer, insulation grieshoch and fibre felt layer, fire brick layer and fibre felt layer is set gradually from inside to outside between the square block and furnace body frame of square block circular arch burner hearth, fire brick layer and fibre felt layer is set gradually from inside to outside between the sidewall and furnace body frame of square block circular arch burner hearth, one end of described square block circular arch burner hearth is provided with air inlet, described air inlet is connected with burner, the other end of described square block circular arch burner hearth is provided with hot-blast outlet, described hot-blast outlet saves with tune wind and is connected, hot-blast outlet end is provided with firebreak.
2. a kind of direct-type fuel gas hot-blast stove according to claim 1, it is characterized in that: described burner comprises burner body, one end of burner body is provided with Imported gas and pressurized air inlet, the other end of burner body is bocca, bocca is connected with air inlet, Imported gas sieves with gas spraying valve, air successively and is connected with combustible gas nozzle, and the gas outlet of combustible gas nozzle is provided with igniter.
3. a kind of direct-type fuel gas hot-blast stove according to claim 2, is characterized in that: described air sieve comprises three layers of pneumatic jig cylinder, and the sieve aperture of every layer of pneumatic jig cylinder staggers mutually, screen drum circumferential center of circle air intake.
4. a kind of direct-type fuel gas hot-blast stove according to claim 1, it is characterized in that: described tune wind joint comprises three pieces of cylinder stationary airfoils and three pieces of cylinder slip aerofoils, cylinder stationary airfoil and cylinder slip aerofoil are crisscross arranged formation cylindrical air duct, slidable groove is provided with between cylinder stationary airfoil and cylinder slip aerofoil, on three pieces of cylinder stationary airfoil two ends welded flanges, mid point is welded on three pulley yokes, described pulley yoke comprises pulley cylinder and slide bar, described slide bar can slide along pulley cylinder, three pieces of cylinder slip aerofoil mid points are welded on three and adjust wind in coil, adjust wind that circle is installed together coil with adjusting wind by roller, cylinder slip aerofoil slides in slidable groove.
5. a kind of direct-type fuel gas hot-blast stove according to claim 1, is characterized in that: described refractory material packing layer is perlite filler layer.
6. a kind of direct-type fuel gas hot-blast stove according to claim 1, is characterized in that: described body of heater is that shaped steel welds the body of heater made.
7. a kind of direct-type fuel gas hot-blast stove according to claim 1, is characterized in that: described body of heater and burner be installed as heat insulation installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410483901.0A CN104251549B (en) | 2014-09-19 | 2014-09-19 | Direct-type fuel gas hot-blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410483901.0A CN104251549B (en) | 2014-09-19 | 2014-09-19 | Direct-type fuel gas hot-blast stove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104251549A true CN104251549A (en) | 2014-12-31 |
| CN104251549B CN104251549B (en) | 2017-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410483901.0A Expired - Fee Related CN104251549B (en) | 2014-09-19 | 2014-09-19 | Direct-type fuel gas hot-blast stove |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649481A (en) * | 2020-06-23 | 2020-09-11 | 萍乡市华顺环保化工填料有限公司 | Hot-blast stove system with pressure regulating function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4877013A (en) * | 1987-07-31 | 1989-10-31 | Didier-Werke Ag | Hot blast stove installation |
| CN2186378Y (en) * | 1993-11-03 | 1994-12-28 | 上海交通大学 | Hot-blast generator |
| CN2341077Y (en) * | 1998-09-18 | 1999-09-29 | 王兴道 | Air heating furnace using gas fuel |
| CN201488267U (en) * | 2009-09-03 | 2010-05-26 | 兰州泰得燃烧设备工程有限公司 | Hot blast stove |
| CN103912861A (en) * | 2014-04-12 | 2014-07-09 | 广州迪森热能技术股份有限公司 | Horizontal biomass steam boiler body |
-
2014
- 2014-09-19 CN CN201410483901.0A patent/CN104251549B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4877013A (en) * | 1987-07-31 | 1989-10-31 | Didier-Werke Ag | Hot blast stove installation |
| CN2186378Y (en) * | 1993-11-03 | 1994-12-28 | 上海交通大学 | Hot-blast generator |
| CN2341077Y (en) * | 1998-09-18 | 1999-09-29 | 王兴道 | Air heating furnace using gas fuel |
| CN201488267U (en) * | 2009-09-03 | 2010-05-26 | 兰州泰得燃烧设备工程有限公司 | Hot blast stove |
| CN103912861A (en) * | 2014-04-12 | 2014-07-09 | 广州迪森热能技术股份有限公司 | Horizontal biomass steam boiler body |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649481A (en) * | 2020-06-23 | 2020-09-11 | 萍乡市华顺环保化工填料有限公司 | Hot-blast stove system with pressure regulating function |
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| Publication number | Publication date |
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| CN104251549B (en) | 2017-10-13 |
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Granted publication date: 20171013 Termination date: 20180919 |