CN212720853U - Heat accumulating type energy-saving inclined bottom heating furnace - Google Patents
Heat accumulating type energy-saving inclined bottom heating furnace Download PDFInfo
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- CN212720853U CN212720853U CN202021433333.0U CN202021433333U CN212720853U CN 212720853 U CN212720853 U CN 212720853U CN 202021433333 U CN202021433333 U CN 202021433333U CN 212720853 U CN212720853 U CN 212720853U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The utility model relates to an energy-conserving oblique end heating furnace of heat accumulation formula, including furnace, furnace comprises furnace roof, furnace wall and stove bottom, and a plurality of full fibre no water cooling keep off the hot wall and divide furnace into a plurality of warm areas, furnace's both sides furnace wall has group steel mouth by the pouring of refractory castable, the heat accumulation formula nozzle that sets up in pairs is installed to the furnace roof, the heat accumulation formula nozzle includes the nozzle main part, the nozzle main part includes inlet channel and the combustion channel of mutually perpendicular intercommunication, be equipped with the ceramic honeycomb heat accumulator in the inlet channel. The utility model discloses a set up a plurality of anhydrous cold fire walls of full fibre and divide furnace into a plurality of warm areas, the adiabatic coefficient of the anhydrous cold fire walls of full fibre is high, reduces the heat and runs off, furnace's both sides brickwork has group steel mouth by the on-the-spot pouring of refractory castable, has better sealed effect, reduces heat loss, and two heat accumulation formula nozzles that set up in pairs work in turn has improved the thermal efficiency greatly, has practiced thrift the energy.
Description
Technical Field
The utility model relates to an oblique end heating furnace technical field, concretely relates to heat accumulation formula energy-conserving oblique end heating furnace.
Background
The inclined bottom heating furnace is one of the main equipments for producing hot-rolled seamless steel pipe, and is a thermal equipment for heating round steel blank before punching. The traditional inclined-bottom heating furnace has the advantages that the heat is easy to dissipate, and the heat preservation performance is poor; in addition, the traditional inclined-bottom heating furnace is not provided with a heat storage conversion device for recovering the waste heat of the flue gas, and the waste heat of the flue gas cannot be recycled, so that the traditional inclined-bottom heating furnace consumes more energy and has high production cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned not enough, provide an energy-conserving oblique end heating furnace of heat accumulation formula, through setting up a plurality of full fibre no water cooling fire walls and divide furnace into a plurality of warm areas, the adiabatic coefficient of full fibre no water cooling fire walls is high, reduces the heat and runs off, furnace's both sides furnace wall has group steel mouth by the on-the-spot pouring of refractory castable, has better sealed effect, reduces the heat loss, two heat accumulation formula nozzles alternate work that set up in pairs have improved the thermal efficiency greatly, have practiced thrift the energy, and holistic heat preservation effect is better, and external temperature control is about 40 ℃.
The purpose of the utility model is realized like this:
the utility model provides an energy-conserving oblique end heating furnace of heat accumulation formula, includes furnace, furnace wall and stove bottom constitute, the feed inlet of furnace wall is equipped with into the steel furnace gate, and a plurality of full fibre no water cooling keep off the fire wall and divide furnace into a plurality of warm areas, furnace's both sides furnace wall has group steel mouth by the pouring of refractory castable, it is loudspeaker form and the macrostoma is towards in the furnace to dial the steel mouth, the stove bottom includes the multichannel slide rail, the slide rail adopts the prefabricated brick of chrome corundum to pave and forms, the heat accumulation formula nozzle that sets up in pairs is installed to the furnace top, and two heat accumulation formula nozzles to each heat accumulation formula nozzle set up the both sides at the furnace top respectively, the heat accumulation formula nozzle includes the nozzle main part, the nozzle main part includes inlet channel and the combustion channel of mutually perpendicular intercommunication, be equipped with.
Preferably, the all-fiber no-water-cooling fire wall is provided with 3, and the 3 all-fiber no-water-cooling fire walls divide the hearth into a preheating zone, a first heating zone, a second heating zone and a uniform temperature zone in sequence along the feeding direction.
Preferably, the preheating zone, the first heating zone and the second heating zone are respectively provided with two pairs of regenerative burners, and the two regenerative burners of each pair of regenerative burners are respectively symmetrically or alternately arranged on two sides of the furnace top.
Preferably, the discharge end of the slide rail is provided with a steel tapping groove, one side of the furnace wall is provided with a pushing port corresponding to the steel tapping groove, and the other side of the furnace wall is provided with a steel tapping port corresponding to the steel tapping groove.
Preferably, the steel pulling hole, the material pushing hole and the steel tapping hole are formed by pouring refractory castable at one time.
Preferably, a heat-insulating brick heat-insulating layer and a fiber heat-insulating layer are further arranged in the refractory castable between two adjacent steel-pulling openings on the same side.
Preferably, the furnace bottom further comprises a first clay brick, a second clay brick and a red brick, the first clay brick is arranged below the slide rails, the second clay brick is arranged between adjacent slide rails and between the slide rails and the furnace wall, the slide rails are higher than the second clay brick, and the red brick is arranged below the first clay brick.
Preferably, one end of the combustion channel, which is close to the air inlet channel, is provided with a cyclone rear cover, the gas pipeline and the ignition gun penetrate through the cyclone rear cover to enter the combustion channel, and the other end of the combustion channel is communicated with the hearth.
The utility model has the advantages that:
the utility model discloses a set up a plurality of anhydrous cold fire walls of full fibre and divide furnace into a plurality of warm areas, the adiabatic coefficient of anhydrous cold fire walls of full fibre is high, no longer need carry out the water-cooling, can effectively reduce the heat loss because of the water-cooling causes, furnace's both sides boiler wall has group steel mouth by the on-the-spot pouring of refractory castable, has better sealed effect, reduces heat loss, is the loudspeaker form group steel mouth and has played energy saving and consumption reduction, two heat accumulation formula nozzles work in turn that set up in pairs, and the heat accumulator has played the effect of temporary heat accumulation's coal medium at this in-process, has improved the thermal efficiency greatly, has practiced thrift the energy.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a sectional view a-a of fig. 1.
Fig. 4 is a sectional view B-B of fig. 1.
Fig. 5 is a plan view of the regenerative burner.
Fig. 6 is a cross-sectional view C-C of fig. 5.
Fig. 7 is a cross-sectional view taken along line D-D of fig. 6.
FIG. 8 is a schematic view of one side flue gas heat accumulation recovery of a pair of heat accumulation type burners.
FIG. 9 is a schematic view of the other side of the pair of regenerative burners for flue gas regenerative recovery.
Wherein: a furnace roof 1; 1.1 of castable refractory layer; a fiber layer 1.2; 1.3 of a thermal insulation layer of the thermal insulation material; a furnace wall 2; 2.1 of refractory castable; drawing a steel port 2.2; 2.3 of insulating layer of insulating brick; a fiber thermal insulation layer 2.4; 2.5 of a steel pulling furnace door; a material pushing port 2.6; a steel tapping hole 2.7; a furnace bottom 3; 3.1 parts of a first clay brick; 3.2 parts of a second clay brick; 3.3 of red bricks; a slide rail 3.4; 3.5 of a steel tapping groove; a full-fiber anhydrous cold fireproof wall 4; a heat accumulating type burner 5; a burner body 5.1; an air inlet channel 5.2; a combustion channel 5.3; 5.4 of honeycomb ceramic heat accumulator; a cyclone rear cover 5.5; 5.6 of a gas pipeline; an ignition gun 5.7; an air duct 6; a smoke exhaust duct 7.
Detailed Description
Referring to fig. 1-9, the utility model relates to an energy-conserving oblique end heating furnace of heat accumulation formula, including furnace, furnace comprises furnace roof 1, furnace wall 2 and stove bottom 3, the feed inlet of furnace wall 2 is equipped with into the steel furnace gate, and a plurality of full fibre no water cooling keep off fire wall 4 divide furnace into a plurality of warm areas, the thermal insulation coefficient of full fibre no water cooling keep off fire wall 4 is high, no longer need carry out the water-cooling, can effectively reduce the heat loss because of the water-cooling causes, furnace's both sides furnace wall 2 has group steel mouth 2.2 by the pouring of refractory castable 2.1, group steel mouth 2.2 cast-in-place, has better sealed effect, reduces heat loss. Dialling in steel mouth 2.2 is the loudspeaker form and the macrostoma is towards furnace, in the condition that does not reduce and dial material operating space, the material mouth of dialling that is the loudspeaker form has played energy saving and consumption reduction. The steel pulling opening 2.2 is provided with a steel pulling furnace door 2.5. A heat insulating brick layer 2.3 and a fiber heat insulating layer 2.4 are also arranged in the refractory castable 2.1 between two adjacent steel drawing ports 2.2 on the same side.
The furnace top 1 is sequentially provided with a castable refractory layer 1.1, a fiber layer 1.2 and a heat insulation layer 1.3 from bottom to top, so that the furnace top has better heat insulation performance, the heat loss is reduced, and the service life of the furnace top is prolonged.
The all-fiber no-water-cooling fire-blocking wall 4 is provided with 3, the 3 all-fiber no-water-cooling fire-blocking walls 4 divide a hearth into a preheating area, a first heating area, a second heating area and a uniform temperature area along the feeding direction in sequence, the preheating area, the first heating area and the second heating area are provided with two pairs of heat accumulating type burners, and the two heat accumulating type burners of each pair of heat accumulating type burners are respectively symmetrically or staggered on two sides of the top of the furnace. The all-fiber anhydrous cold fireproof wall 4 is used for stabilizing the temperature of each temperature zone so as to control the temperature of the steel tapping hole.
The defeated material passageway slope of traditional sloping bottom heating furnace is big, and the slope is 11 to 13 often, and round steel base is rolled down fast in the same place, just also short in the time of furnace heating, and the heating is insufficient, consequently adjusts the structure of stove bottom 3, 3 beginning downward sloping from the feed inlet of stove bottom, the slope is 6, the stove bottom rear portion tends to the level in heating two districts, and round steel base rolls slowly at furnace, and rear portion further obtains the buffering in heating two districts, and the time of heating is long in the furnace, and the heating is abundant. The furnace bottom 3 comprises a first clay brick 3.1, a second clay brick 3.2, a red brick 3.3 and a plurality of sliding rails 3.4, the sliding rails 3.4 are paved by adopting chrome corundum prefabricated bricks, the high-temperature smashing resistance and the wear resistance of the sliding rails 3.4 are improved, the sliding rails can bear the rolling smashing of round steel billets and the high temperature in a hearth, the straightness of the sliding rails is kept, the steel poking times are reduced, the steel poking furnace door opening times are reduced, and the heat loss is reduced. First clay brick 3.1 sets up in the below of slide rail 3.4, and second clay brick 3.2 sets up between adjacent slide rail 3.4, between slide rail 3.4 and the brickwork 2, and second clay brick 3.2 effectively improves the installation intensity of slide rail 3.4, improves stove bottom life. The slide rail 3.4 is higher than the second clay brick 3.2, and the red brick 3.3 is arranged below the first clay brick 3.1.
The discharge end of slide rail 3.4 is equipped with steel-tapping spout 3.5, and one side furnace wall 2 corresponds steel-tapping spout 3.5 and is equipped with and pushes away material mouth 2.6, and opposite side furnace wall 2 corresponds steel-tapping spout 3.5 and is equipped with steel-tapping hole 2.7, dial steel mouth 2.2, push away material mouth 2.6 and steel-tapping hole 2.7 and once pour by refractory castable 2.1 and form, the leakproofness is better, and calorific loss is few.
The furnace top 1 is provided with heat accumulating type burners 5 arranged in pairs, the two heat accumulating type burners 5 of each pair of heat accumulating type burners 5 are respectively arranged on two sides of the furnace top 1, each heat accumulating type burner 5 comprises a burner main body 5.1, each burner main body 5.1 comprises an air inlet channel 5.2 and a combustion channel 5.3 which are mutually perpendicular and communicated, a honeycomb ceramic heat accumulator 5.4 is arranged in each air inlet channel 5.2, one end of each combustion channel 5.3 is provided with a cyclone rear cover 5.5, a gas pipeline 5.6 and an ignition gun 5.7 penetrate through the cyclone rear cover 5.5 to enter the combustion channel 5.3, and the other end of the combustion channel 5.3 is communicated with a furnace chamber.
As shown in fig. 5, a schematic view of the connection between a pair of regenerative burners and a furnace is shown, normal temperature air enters the honeycomb ceramic heat accumulator 5.4 in the intake duct of the regenerative burner from the intake duct 5.2 of the left regenerative burner through the reversing valve via the air duct 6, and the normal temperature air is heated by the honeycomb ceramic heat accumulator 5.4 and mixed with the gas duct 5.6 for combustion; high-temperature flue gas generated by combustion is discharged from a smoke discharge pipeline 7 after being stored by a honeycomb ceramic heat accumulator 5.4 in an air inlet pipeline of a right heat accumulating type burner, the high-temperature flue gas is cooled, and heat is recovered; when the honeycomb ceramic heat accumulator 5.4 is saturated, the reversing valve is switched, normal temperature air enters a hearth after being heated by the air pipeline 6 through the honeycomb ceramic heat accumulator 5.4 saturated in heat accumulation of the right heat accumulation type burner, the heated normal temperature air is mixed with the gas pipeline 5.6 for combustion, at the moment, the honeycomb ceramic heat accumulator 5.4 of the left heat accumulation type burner obtains heat accumulation capacity again, and high temperature flue gas generated by combustion is discharged from the smoke discharge pipeline 7 after being accumulated in the honeycomb ceramic heat accumulator 5.4 in the air inlet pipeline of the left heat accumulation type burner. Two heat accumulating type burners of the pair of heat accumulating type burners work alternately, and the heat accumulator plays a role of temporarily accumulating coal medium in the process, so that the heat efficiency is greatly improved, and the energy is saved.
In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.
Claims (8)
1. The utility model provides a heat accumulation formula energy-conserving oblique end heating furnace, includes furnace, furnace comprises furnace roof (1), furnace wall (2) and stove bottom (3), the feed inlet of furnace wall (2) is equipped with into steel furnace gate, its characterized in that: furnace is divided into a plurality of warm areas in a plurality of full fibre anhydrous cold fire walls (4), the both sides furnace wall (2) of furnace have by refractory castable (2.1) pouring and dial steel mouth (2.2), dial steel mouth (2.2) and be loudspeaker form and the macrostoma towards in the furnace, stove bottom (3) include multichannel slide rail (3.4), slide rail (3.4) adopt the prefabricated brick of chrome corundum to pave and form, regenerative burner (5) that set up in pairs are installed in furnace top (1), and two regenerative burner (5) of every pair of regenerative burner (5) set up the both sides at furnace top (1) respectively, regenerative burner (5) include nozzle main part (5.1), air inlet channel (5.2) and combustion channel (5.3) that nozzle main part (5.1) communicate including mutually perpendicular, be equipped with honeycomb ceramic heat accumulation body (5.4) in air inlet channel (5.2).
2. A regenerative energy-saving slant-bottom heating furnace according to claim 1, wherein: the full-fiber non-water-cooling fire-blocking wall (4) is provided with 3, and the hearth is divided into a preheating area, a first heating area, a second heating area and a uniform temperature area along the feeding direction by the 3 full-fiber non-water-cooling fire-blocking walls (4).
3. A regenerative energy-saving slant-bottom heating furnace according to claim 2, wherein: the preheating zone, the first heating zone and the second heating zone are respectively provided with two pairs of heat accumulating type burners, and the two heat accumulating type burners of each pair of heat accumulating type burners are respectively arranged on two sides of the furnace top symmetrically or in a staggered mode.
4. A regenerative energy-saving slant-bottom heating furnace according to claim 1, wherein: the discharge end of slide rail (3.4) is equipped with steel-tapping spout (3.5), and one side brickwork (2) is equipped with corresponding steel-tapping spout (3.5) and pushes away material mouthful (2.6), and opposite side brickwork (2) is equipped with steel-tapping spout (2.7) corresponding steel-tapping spout (3.5).
5. The heat accumulating type energy-saving inclined bottom heating furnace according to claim 4, characterized in that: the steel pulling hole (2.2), the material pushing hole (2.6) and the steel tapping hole (2.7) are formed by pouring refractory castable (2.1) at one time.
6. A regenerative energy-saving slant-bottom heating furnace according to claim 1, wherein: a heat-insulating brick heat-insulating layer (2.3) and a fiber heat-insulating layer (2.4) are also arranged in the refractory castable (2.1) between two adjacent steel-pulling openings (2.2) at the same side.
7. A regenerative energy-saving slant-bottom heating furnace according to claim 1, wherein: the furnace bottom further comprises a first clay brick (3.1), a second clay brick (3.2) and a red brick (3.3), the first clay brick (3.1) is arranged below the sliding rail (3.4), the second clay brick (3.2) is arranged between the adjacent sliding rails (3.4) and between the sliding rail (3.4) and the furnace wall (2), the sliding rail (3.4) is higher than the second clay brick (3.2), and the red brick (3.3) is arranged below the first clay brick (3.1).
8. A regenerative energy-saving slant-bottom heating furnace according to claim 1, wherein: one end of the combustion channel (5.3) close to the air inlet channel is provided with a cyclone rear cover (5.5), the gas pipeline (5.6) and the ignition gun (5.7) penetrate through the cyclone rear cover (5.5) to enter the combustion channel (5.3), and the other end of the combustion channel (5.3) is communicated with the hearth.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021433333.0U CN212720853U (en) | 2020-07-21 | 2020-07-21 | Heat accumulating type energy-saving inclined bottom heating furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021433333.0U CN212720853U (en) | 2020-07-21 | 2020-07-21 | Heat accumulating type energy-saving inclined bottom heating furnace |
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| CN212720853U true CN212720853U (en) | 2021-03-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114540609A (en) * | 2022-01-14 | 2022-05-27 | 湖州中合鑫顺特钢股份有限公司 | Inclined bottom heating process based on heat recovery |
| CN114540610A (en) * | 2022-01-14 | 2022-05-27 | 湖州中合鑫顺特钢股份有限公司 | Efficient inclined bottom heating process |
-
2020
- 2020-07-21 CN CN202021433333.0U patent/CN212720853U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114540609A (en) * | 2022-01-14 | 2022-05-27 | 湖州中合鑫顺特钢股份有限公司 | Inclined bottom heating process based on heat recovery |
| CN114540610A (en) * | 2022-01-14 | 2022-05-27 | 湖州中合鑫顺特钢股份有限公司 | Efficient inclined bottom heating process |
| CN114540609B (en) * | 2022-01-14 | 2024-05-03 | 湖州中合鑫顺特钢股份有限公司 | Inclined bottom heating process based on heat recovery |
| CN114540610B (en) * | 2022-01-14 | 2024-05-03 | 湖州中合鑫顺特钢股份有限公司 | Efficient inclined bottom heating process |
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