CN210533008U

CN210533008U - Energy-saving dumping furnace

Info

Publication number: CN210533008U
Application number: CN201921536874.3U
Authority: CN
Inventors: 吴应勇
Original assignee: Ningbo Dongcheng Qunli Machinery Co ltd
Current assignee: Ningbo Dongcheng Qunli Machinery Co ltd
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-05-15
Anticipated expiration: 2029-09-16

Abstract

The utility model discloses an energy-conserving tilt furnace, the induction cooker comprises a cooker bod, be provided with heat-resisting inlayer in the furnace body, the inside furnace that is provided with of heat-resisting inlayer, be provided with the heat conduction sand grip in the furnace, heat conduction sand grip spiral setting is on the inner wall of heat-resisting inlayer, the furnace top is provided with the gas vent, the position relative with the heat conduction sand grip in the heat-resisting inlayer is provided with exhaust duct, the furnace body outside is provided with air heater, exhaust duct one end is connected with exhaust duct, the other end stretches out furnace body and air heater's hot-fluid entry linkage, one side of furnace body is provided with combustor and air-blower, the furnace body bottom has seted up the burner port with the combustor correspondence department, the nozzle of combustor stretches into in the burner port, the cold fluid outlet of air heater. The utility model discloses heating efficiency is high, and energy utilization is high, has reduced the pollution to the environment, and it is effectual to keep warm.

Description

Energy-saving dumping furnace

Technical Field

The utility model relates to a crucible furnace field, in particular to energy-conserving tilting furnace.

Background

The crucible furnace is the simplest smelting equipment and is mainly used for melting nonferrous metals with low melting points, such as copper, aluminum and alloys thereof. In the furnace, the alloy is melted in the crucible, heat is transferred to the furnace charge through the crucible, and the combustion products of the furnace charge are not in direct contact, so that the chemical components of the alloy are hardly influenced by furnace gas, and the temperature of the alloy liquid is relatively uniform, which is the main advantage.

At present, chinese patent publication No. CN205641965U discloses a chimney-free tilting crucible furnace, comprising: the furnace comprises a furnace body, wherein a crucible is arranged in a hearth of the furnace body, a furnace cover used for sealing the hearth is arranged at the top of the hearth, and a gap is formed between the furnace cover and the top of the crucible and used for tempering; the crucible is provided with a soup outlet and is closed by a plug cover; a burner is arranged on one side of the furnace body, and a burner of the burner extends into the hearth and is heated corresponding to the bottom of the crucible; the furnace body is provided with one side of the soup outlet is installed on the rotary support through a rotating shaft, and the furnace body is further connected with an oil hydraulic cylinder to drive the furnace body to rotate along the rotating shaft and realize dumping.

Although this patent has realized empting the function of furnace body, can't store and make full use of a large amount of heats that produce the gas combustion, lead to a large amount of heat energy to run off, need a large amount of gas to keep the furnace temperature, caused the energy waste, increaseed the emission of flue gas, aggravated the pollution to the environment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an energy-conserving pouring furnace, it has heat utilization rate height, and the energy saving has reduced smoke emission's advantage.

The above technical purpose of the present invention can be achieved by the following technical solutions:

an energy-saving dumping furnace comprises a furnace body, wherein the furnace body is sequentially provided with a furnace shell, a heat preservation layer and a heat-resistant inner layer from outside to inside, a hearth is arranged in the heat-resistant inner layer, a supporting seat is arranged at the bottom of the hearth, a crucible is arranged on the supporting seat, a furnace cover is arranged at the top of the hearth, a heat-conducting convex strip is arranged in the hearth, the heat-conducting convex strip is spirally arranged on the inner wall of the heat-resistant inner layer, an exhaust port is arranged at the top of the hearth, an exhaust pipeline is connected with the exhaust port, a spiral exhaust groove is arranged at the position opposite to the heat-conducting convex strip in the heat-resistant inner layer, the exhaust pipeline is fixed in the spiral exhaust groove, an air preheater is arranged outside the furnace body and comprises a hot fluid inlet, a hot fluid outlet, a cold fluid inlet and a, the hot fluid outlet of the air preheater is provided with a chimney, one side of the furnace body is provided with a fixed platform, the fixed platform is provided with a burner and an air blower, the bottom of the furnace body corresponds to the burner and is provided with a burner port, a burner of the burner extends into the burner port, the cold fluid outlet of the air preheater is connected with the burner port through a pipeline, and the air outlet of the air blower is connected with the cold fluid inlet of the air preheater.

Through adopting above-mentioned technical scheme, the temperature of high temperature flue gas has been fully utilized to the heat conduction sand grip and the exhaust duct of spiral setting, has improved the heating efficiency of crucible, and air heater's setting has utilized the waste heat in the flue gas to heat combustion air, has reduced the waste of the energy, has reached energy-conserving effect.

Further setting: a filter screen is arranged in the chimney.

Through adopting above-mentioned technical scheme, use the filter screen to filter the flue gas, filtered the impurity in discharging the flue gas, alleviateed the pollution of flue gas to the environment.

Further setting: the utility model discloses a chimney, including chimney, dust removal mouth, dust removal door, fixing bolt, fixed carousel, dust removal door and spacing edge, the dust removal mouth has been seted up to the lateral wall of chimney, the top of dust removal mouth articulates there is the dust removal door, the dust removal mouth is provided with spacing edge, the dust removal door passes through fixing bolt fastening connection with spacing edge, fixing bolt deviates from the one end of chimney and is connected with fixed carousel, fixed carousel is used for rotating.

Through adopting above-mentioned technical scheme, the setting of dust removal mouth and dust removal door is convenient for clear up the impurity that filters down in the chimney.

Further setting: still including empting the base, the furnace body sets up in empting the base top, it is provided with the support frame on the base to empty, the support frame is located one side that the furnace body is provided with the hot water outlet, the top of support frame both sides all articulates there is the axle that inclines, it deviates from one end and furnace body fixed connection of support frame to empty the axle, it is connected with the pneumatic cylinder to incline the axle bottom, the pneumatic cylinder is used for driving to incline the axle and realizes empting of furnace body along the rotation of articulated department.

Through adopting above-mentioned technical scheme, when going out hot water, pneumatic cylinder drive axle that tumbles makes the furnace body realize empting, need not operating personnel's being close to, has guaranteed the security, and stable steerable.

Further setting: and a vacuum heat insulation gap is arranged between the furnace shell and the heat insulation layer.

By adopting the technical scheme, the heat insulation gap which is arranged to be vacuum between the heat insulation layer and the furnace shell ensures excellent heat insulation performance.

To sum up, the utility model discloses following beneficial effect has: the heat utilization rate is high, the waste heat in the flue gas is fully utilized, the heating efficiency is good, the energy is saved, the pollution to the environment is reduced, the heat preservation performance is good, the hydraulic cylinder controls and drives the hot water outlet, and the safety of personnel is ensured.

Drawings

FIG. 1 is an overall structural view of the embodiment;

FIG. 2 is a schematic structural view of a furnace body in the example;

FIG. 3 is a schematic structural view of a chimney in the embodiment.

In the figure, 1, a base is poured; 2. a furnace body; 3. a support frame; 4. heat conducting convex strips; 5. an exhaust port; 6. an exhaust duct; 7. an air preheater; 8. a fixed table; 21. a furnace shell; 22. a thermally insulating gap; 23. a heat-insulating layer; 24. a heat resistant inner layer; 25. a hearth; 26. a supporting seat; 27. a crucible; 28. a soup outlet; 29. a burner port; 31. tilting the shaft; 32. a hydraulic cylinder; 71. a hot fluid inlet; 72. a hot fluid outlet; 73. a cold fluid inlet; 74. a cold fluid outlet; 75. a chimney; 81. a combustion engine; 82. a blower; 751. a filter screen; 752. a dust removal door; 753. a limiting edge; 754. and (5) fixing the bolt.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

as shown in fig. 1 and 2, the energy-saving dumping furnace comprises a furnace body 2 and a dumping base 1, wherein the furnace body 2 is arranged on the dumping base 1, a furnace cover is installed at the top of the furnace body 2, a feeding hole is formed in the middle of the furnace cover, an air preheater 7 is fixed on the outer wall of the furnace body 2 through bolts, a fixing table 8 is welded on one side of the furnace body 2, and a burner 81 and a blower 82 are fixed on the fixing table 8 through bolts. The furnace body 2 is sequentially provided with a furnace shell 21, a heat insulation layer 23 and a heat-resistant inner layer 24 from outside to inside, the furnace shell 21 is made of a 6CM steel plate, the heat insulation layer 23 is made of calcium silicate, a 5CM heat insulation gap 22 is arranged between the furnace shell 21 and the heat insulation layer 23, air at the heat insulation gap 22 is pumped out by an air pump to form a vacuum state, the heat insulation gap 22 in the vacuum state can well insulate heat transfer, excellent heat insulation performance is guaranteed, and the heat-resistant inner layer 24 is made of refractory clay. A hearth 25 is arranged in the heat-resistant inner layer 24, a supporting seat 26 is arranged at the bottom of the hearth 25, a crucible 27 is fixed at the top of the supporting seat 26, a soup outlet 28 is formed at the top of the crucible 27, and the soup outlet 28 extends out of the furnace body 2.

As shown in fig. 2, the heat conducting raised strips 4 are arranged in the hearth 25, the heat conducting raised strips 4 are spirally arranged on the inner wall of the heat-resistant inner layer 24 from bottom to top, and the arrangement of the heat conducting raised strips 4 can enable the flame of the hearth 25 to be combusted layer by layer along the grooves formed between two circles of heat conducting raised strips 4, so that the time for the flame to stay in the hearth 25 is increased, the heating time of the flame to the crucible 27 in the hearth 25 is prolonged, and the heating efficiency is improved. The gas vent 5 has been seted up to furnace 25 forehead top, and gas vent 5 threaded connection has exhaust duct 6, in heat-resisting inlayer 24 and on the relative position of heat conduction sand grip 4, has seted up the spiral air discharge duct, and exhaust duct 6 stretches into in the spiral air discharge duct and stretches out outside furnace body 2 from the bottom that deviates from the spiral air discharge duct. Exhaust duct 6 sets up along the route of heat conduction sand grip 4, and high temperature flue gas keeps warm and auxiliary heating can be carried out to furnace 25 with the help of the temperature of flue gas along exhaust duct 6 spiral downwards after getting into exhaust duct 6 from gas vent 5, has improved the utilization ratio of heat energy, has practiced thrift the consumption of fuel.

As shown in fig. 2 and 3, a combustion port 29 is formed at a position corresponding to a burner 81 at the bottom of the furnace body 2, the burner of the burner 81 extends into the combustion port 29, one end of the exhaust duct 6 extending out of the furnace body 2 is connected with a hot fluid inlet 71 of the air preheater 7, an air outlet of the blower 82 is connected with a cold fluid inlet 73 of the air preheater 7, a cold fluid outlet 74 of the air preheater 7 is connected with the combustion port 29 through a duct, a chimney 75 is connected at a hot fluid outlet 72 of the air preheater 7 through a bolt, flue gas generated by combustion in the furnace 25 enters the air preheater 7 through the exhaust duct 6, exchanges heat with cold air blown in by the blower 82 to heat the cold air, the preheated air is introduced into the combustion port 29 to support combustion, the combustion air is preheated by using waste heat of the flue gas, a part of heat energy for heating the air is saved, and the utilization rate of the heat energy is, the fuel consumption is saved. The chimney 75 is L-shaped, the filter screen 751 is arranged at the upper part of the chimney 75, and the smoke to be discharged is discharged after large-particle impurities are filtered by the filter screen 751, so that the pollution of the smoke to the environment is reduced. The corner of chimney 75 has been seted up the dust removal mouth, the top of dust removal mouth articulates there is dust removal door 752, spacing 753 has been seted up on the dust removal mouth, spacing 753 is carried out the spacing of horizontal direction to dust removal door 752 along 753, fixing bolt 754 and spacing 753 fastening connection are passed through to the bottom of dust removal door 752, the one end that deviates from chimney 75 at fixing bolt 754 is connected with the fixed turntable that is used for rotatory fixing bolt, after having piled up a large amount of large granule impurity in chimney 75, operating personnel can rotatory fixed turntable, with fixing bolt 754 from spacing 753 screwing out, then open dust removal door 752 and clear up the impurity in the chimney 75, close dust removal door 752 after the clearance finishes and can accomplish the fixed to dust removal door 752 through rotatory fixed turntable, moreover, the steam generator is simple in structure, and convenient operation.

As shown in fig. 1, welding has support frame 3 in empting 1 top of base, support frame 3 is located one side that hot water outlet 28 was seted up to furnace body 2, top in support frame 3 both sides all articulates there is the axle 31 of empting, it deviates from one end and furnace body 2 fixed connection of support frame 3 to empty axle 31, it has pneumatic cylinder 32 to empty axle 31 bottom through the pin joint, the one end that pneumatic cylinder 32 deviates from the axle 31 of empting is fixed on empting base 1, hydraulic drive is poured axle 31 and is upwards overturn along articulated department, it realizes empting of furnace body 2 to incline axle 31 drive furnace body 2 motion.

When the utility model is used, materials to be smelted are firstly put into the feed inlet, the burner 81 is operated, the high-temperature flue gas enters the exhaust duct 6 along the exhaust port 5 after reaching the top of the hearth 25, the flue gas spirally downwards winds the hearth 25 along the exhaust duct 6, the hearth 25 is subjected to heat preservation and auxiliary heating by virtue of residual heat contained in the flue gas, then the flue gas enters the air preheater 7, exchanges heat with the cold air sent into the air preheater 7 by the blower 82, heats the cold air by using the waste heat of the flue gas, the flue gas after heat exchange enters the chimney 75, is filtered by the filter screen 751 and then is discharged, and the preheated cold air enters the combustion port 29 from the cold fluid outlet 74 of the air preheater 7 to assist in combustion of the gas. After smelting is finished, the hydraulic cylinder 32 drives the tilting shaft 31 to tilt upwards, the tilting shaft 31 drives the furnace body 2 to move to tilt, and molten metal is poured out from the molten metal outlet 28.

When the utility model discloses move a period after, operating personnel can rotatory fixed carousel make fixing bolt 754 follow spacing 753 and screw out, opens dust removal door 752 and awakens the clearance to the large granule impurity that the chimney 75 internal filtration got off, avoids influencing the emission of flue gas.

The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.

Claims

1. The utility model provides an energy-conserving tilt furnace, includes furnace body (2), furnace body (2) sets gradually stove outer covering (21), heat preservation (23) and heat-resisting inlayer (24) from outer to interior, inside being provided with furnace (25) of heat-resisting inlayer (24), furnace (25) bottom is provided with supporting seat (26), be provided with crucible (27) on supporting seat (26), furnace (25) top is provided with the bell, its characterized in that, be provided with heat conduction sand grip (4) in furnace (25), heat conduction sand grip (4) spiral setting is on the inner wall of heat-resisting inlayer (24), furnace (25) top is provided with gas vent (5), gas vent (5) are connected with exhaust duct (6), the spiral exhaust duct has been seted up with heat conduction sand grip (4) relative position in heat-resisting inlayer (24), exhaust duct (6) are fixed in the spiral exhaust duct, the air preheater (7) is arranged outside the furnace body (2), the air preheater (7) comprises a hot fluid inlet (71), a hot fluid outlet (72), a cold fluid inlet (73) and a cold fluid outlet (74), one end of the exhaust pipeline (6) deviating from the exhaust port (5) extends out of the furnace body (2) to be connected with the hot fluid inlet (71) of the air preheater (7), the hot fluid outlet (72) of the air preheater (7) is connected with a chimney (75), one side of the furnace body (2) is provided with a fixed platform (8), the fixed platform (8) is provided with a burner (81) and an air blower (82), the bottom of the furnace body (2) is provided with a combustion port (29) corresponding to the burner (81), the burner of the burner (81) extends into the combustion port (29), the cold fluid outlet (74) of the air preheater (7) is connected with the combustion port (29) through a pipeline, the air outlet of the blower (82) is connected with the cold fluid inlet (73) of the air preheater (7).

2. An energy saving tilting stove according to claim 1 characterized in that a filtering net (751) is arranged in said chimney (75).

3. The energy-saving dumping furnace according to claim 2, wherein a dust removing opening is formed in a side wall of the chimney (75), a dust removing door (752) is hinged to the top of the dust removing opening, the dust removing opening is provided with a limiting edge (753), the dust removing door (752) is fixedly connected with the limiting edge (753) through a fixing bolt (754), one end of the fixing bolt (754) departing from the chimney (75) is connected with a fixing turntable, and the fixing turntable is used for rotating the fixing bolt, so that the operation of a person is facilitated.

4. The energy-saving dumping furnace according to claim 1, further comprising a dumping base (1), wherein the furnace body (2) is arranged above the dumping base (1), a soup outlet (28) is formed in the top of the crucible (27), a support frame (3) is arranged on the dumping base (1), the support frame (3) is positioned on one side of the furnace body (2) provided with the soup outlet (28), dumping shafts (31) are hinged to the tops of two sides of the support frame (3), one ends of the dumping shafts (31) departing from the support frame (3) are fixedly connected with the furnace body (2), hydraulic cylinders (32) are connected to the bottoms of the dumping shafts (31), and the hydraulic cylinders (32) are used for driving the dumping shafts (31) to rotate along the hinged positions to realize dumping of the furnace body (2).

5. An energy-saving dumping furnace according to claim 1, characterized in that a vacuum heat insulation gap (22) is provided between said furnace shell (21) and said heat insulation layer (23).