CN210533021U

CN210533021U - Energy-saving fuel gas zinc alloy smelting furnace

Info

Publication number: CN210533021U
Application number: CN201921542580.1U
Authority: CN
Inventors: 吴应勇
Original assignee: Ningbo Dongcheng Qunli Machinery Co ltd
Current assignee: Ningbo Dongcheng Qunli Machinery Co ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-05-15
Anticipated expiration: 2029-09-17

Abstract

The utility model relates to the technical field of metal smelting furnace equipment, in particular to an energy-saving fuel gas zinc alloy smelting furnace, which comprises a furnace body, a fuel storage chamber, a heat exchanger, an air blower and a smoke collecting device; a combustion chamber and a crucible are arranged in a hearth of the furnace body, a partition plate is arranged at the top of the combustion chamber, and a smoke outlet and a through hole for the crucible to pass through are formed in the partition plate; the fuel storage chamber is communicated with the combustion chamber; first heat transfer passageway in the heat exchanger communicates with air-blower and combustion chamber each other respectively, and collection cigarette device is including locating the collection petticoat pipe of exhaust port top, and the collection petticoat pipe communicates with the one end of the second heat transfer passageway in the heat exchanger, is equipped with smoke guide mechanism in the collection petticoat pipe, and the bottom of collection petticoat pipe is equipped with annular smoke guide portion, is equipped with the smoking mouth in the annular smoke guide portion, and the smoking mouth is relative with the exhaust port. The flue gas generated in the combustion process exchanges heat with air in the heat exchanger, so that the temperature of the combustion air is increased, the heat of the flue gas is recycled, and the heat efficiency in the combustion chamber is improved.

Description

Energy-saving fuel gas zinc alloy smelting furnace

Technical Field

The utility model relates to a metal smelting pot equipment technical field especially relates to an energy-conserving gas zinc alloy smelting pot.

Background

The zinc alloy is an alloy formed by adding other elements on the basis of zinc. The common alloy elements comprise low-temperature zinc alloy such as aluminum, copper, magnesium, cadmium, lead, titanium and the like. The zinc alloy has low melting point, good fluidity, easy fusion welding, brazing and plastic processing. The zinc alloy is generally smelted through a smelting furnace in the processing process.

A melting furnace is a device for melting metal commonly used in the metallurgical industry and generally comprises a furnace body, a burner, a hearth, a crucible placed in the hearth, and a chimney for discharging burnt exhaust gas into the atmosphere. At present, a smelting furnace used in the market generally adopts coke, diesel oil or a gas burner as energy, when a crucible is heated, a large amount of flue gas containing harmful gas can be generated, and the large amount of high-temperature waste gas is discharged into the atmosphere in an unused state, so that a large amount of energy waste is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an energy-conserving gas zinc alloy smelting pot realizes energy-conserving, the purpose of environmental protection.

In order to achieve the above purpose, the basic scheme of the utility model is as follows: an energy-saving fuel gas zinc alloy smelting furnace comprises a furnace body, a fuel storage chamber, a heat exchanger, a blower and a smoke collecting device; an open hearth is arranged in the furnace body, refractory bricks are lined in the hearth, the refractory bricks enclose to form a combustion chamber, a crucible is arranged in the combustion chamber, a crucible seat used for supporting the crucible is arranged at the bottom of the combustion chamber, a partition plate is arranged at the top of the combustion chamber, a through hole for the crucible to pass through is formed in the partition plate, and a plurality of smoke outlets are formed in the through hole; a feeding pipe is connected between the fuel storage chamber and the combustion chamber, and an igniter for igniting fuel is arranged in the combustion chamber; a first heat exchange channel and a second heat exchange channel which are adjacent are arranged in the heat exchanger, a first air inlet pipe is connected between the blower and one end of the first heat exchange channel of the heat exchanger, and a second air inlet pipe is connected between the other end of the first heat exchange channel and the combustion chamber; the smoke collecting device comprises a smoke collecting hood arranged above the smoke outlet, a smoke guide mechanism is arranged in the smoke collecting hood, the top of the smoke collecting hood and one end of a second heat exchange channel of the heat exchanger are connected with a first smoke guide pipe, and the other end of the second heat exchange channel is connected with a second smoke guide pipe; the bottom of collection petticoat pipe is equipped with annular smoke guide portion, be equipped with the smoking mouth on the annular smoke guide portion, and the smoking mouth is relative with the exhaust port.

Further, the smoke guide mechanism comprises an exhaust fan, a support plate is fixedly connected in the smoke collecting cover, the exhaust fan is fixedly installed on the support plate, and smoke guide holes for enabling smoke to pass through are densely distributed in the support plate.

Through adopting above-mentioned technical scheme, the air exhauster of collection petticoat pipe can carry out the collection of concentrating from the exhaust port exhaust high temperature flue gas to in leading-in the second heat transfer passageway to the heat exchanger of high temperature flue gas, take place the heat exchange with the air in the first heat transfer passageway, recycle the waste heat in the high temperature flue gas.

Furthermore, the second smoke guide pipe is internally filled with a composite filter layer for purifying smoke, and the composite filter layer is internally filled with a desulfurizer, active carbon and composite cellucotton.

By adopting the technical scheme, harmful substances in the high-temperature flue gas are discharged into the atmosphere after being subjected to multi-layer filtration and purification in the composite filter layer, so that the damage to the environment is reduced, and the environment is more environment-friendly.

Furthermore, be equipped with the crucible lid that is used for sealing the crucible on the crucible, the crucible lid includes the apron of two mutual concatenations, and the one end of two apron articulates the opening part at the crucible respectively.

By adopting the technical scheme, the crucible cover covers the crucible, so that the molten metal in the crucible can be isolated from the outside air, the crucible can be insulated, and the heat loss is reduced.

Furthermore, a temperature sensing device for monitoring the temperature in the crucible in real time is arranged on the furnace body, the temperature sensing device comprises a temperature sensing element extending into the crucible, and the temperature sensing element is connected with a PID temperature control instrument.

By adopting the technical scheme, the temperature sensing element can monitor the temperature in the crucible in real time, and the delivery amounts of the fuel and the combustion air are adjusted according to the change of the temperature.

Furthermore, the outer wall cladding of combustion chamber has the heat preservation, the heat preservation is nanometer sheet layer, high temperature resistant heat preservation cotton layer and asbestos sheet layer from inside to outside in proper order.

Through adopting above-mentioned technical scheme, the heat preservation can keep warm in the furnace body, reduces thermal scattering and disappearing.

Compared with the prior art, the scheme has the beneficial effects that: the air blower continuously blows air into the combustion chamber, the air flows through the first heat exchange channel of the heat exchanger and is subjected to heat exchange with high-temperature flue gas flowing through the second heat exchange channel of the heat exchanger, waste heat in the flue gas is fully recycled, the temperature of the air is increased, the high-temperature air is conveyed into the combustion chamber through the second air inlet pipe, the combustion effect of fuel is improved, the heat efficiency in the combustion chamber is greatly improved, and the consumption of energy is reduced.

Drawings

FIG. 1 is a schematic structural view of an energy-saving gas zinc alloy melting furnace of the present invention;

FIG. 2 is a schematic sectional view of the furnace body of the present invention;

FIG. 3 is a schematic top view of the furnace body of the present invention;

fig. 4 is a schematic sectional structure view of the exhaust fume collecting hood of the present invention.

Reference numerals in the drawings of the specification include: the furnace comprises a furnace body 1, a metal shell 11, a heat preservation layer 12, a fuel storage chamber 2, a feeding pipe 21, a feeding valve 22, a heat exchanger 3, a first smoke guide pipe 31, a second smoke guide pipe 32, an air blower 4, a first air inlet pipe 41, a second air inlet pipe 42, a one-way valve 43, a smoke collecting hood 5, an annular smoke guide part 51, a smoke suction port 52, an exhaust fan 6, a support plate 61, a smoke guide hole 62, a combustion chamber 7, refractory bricks 71, a crucible base 72, an igniter 73, a crucible 8, a cover plate 81, a partition plate 82, a smoke exhaust port 83, a PID temperature control instrument 9, a support 91 and a temperature sensing element 92.

Detailed Description

The invention will be described in further detail by means of specific embodiments with reference to the accompanying drawings:

example (b):

an energy-saving fuel gas zinc alloy smelting furnace is shown in figures 1 and 2 and comprises a furnace body 1, a fuel storage chamber 2, a heat exchanger 3, a blower 4 and a smoke collecting device; the furnace body 1 is externally coated with a metal shell 11, an open hearth is arranged in the furnace body 1, refractory bricks 71 are lined in the hearth, the refractory bricks 71 surround to form a combustion chamber 7, the outer wall of the combustion chamber 7 is coated with a heat insulation layer 12, and the heat insulation layer 12 is a nano plate layer, a high-temperature-resistant heat insulation cotton layer and an asbestos plate layer from inside to outside in sequence.

As shown in fig. 1 and 2, a feed pipe 21 is connected between the fuel storage chamber 2 and the combustion chamber 7, a feed valve 22 is mounted on the feed pipe 21, and an igniter 73 for igniting fuel is provided in the combustion chamber 7. A first heat exchange channel and a second heat exchange channel which are adjacent to each other are arranged in the heat exchanger 3, a first air inlet pipe 41 is connected between the air blower 4 and one end of the first heat exchange channel of the heat exchanger 3, a second air inlet pipe 42 is connected between the other end of the first heat exchange channel and the combustion chamber 7, and a one-way valve 43 is arranged on the second air inlet pipe 42.

As shown in fig. 2 and 3, a crucible 8 is arranged in the combustion chamber 7, and a crucible holder 72 for supporting the crucible 8 is arranged at the bottom of the combustion chamber 7; be equipped with 8 lids of crucible that are used for sealing crucible 8 on

crucible

8, 8 lids of crucible include two apron 81 of splicing each other, and the one end of two apron 81 articulates respectively at 8 openings of crucible. The top of the combustion chamber 7 is provided with a partition plate 82, the partition plate 82 is provided with a through hole for the crucible 8 to pass through, and the through hole is provided with a plurality of smoke outlets 83.

As shown in fig. 1 and 4, the smoke collecting device comprises a smoke collecting hood 5 arranged above the smoke exhaust port 83, a smoke guiding mechanism is arranged in the smoke collecting hood 5, the smoke guiding mechanism comprises an exhaust fan 6, a supporting plate 61 is fixedly connected in the smoke collecting hood 5, the exhaust fan 6 is fixedly installed on the supporting plate 61, and smoke guiding holes 62 for allowing smoke to pass through are densely distributed in the supporting plate 61. The top of the smoke collecting hood 5 and one end of the second heat exchange channel of the heat exchanger 3 are connected with a first smoke guide pipe 31, the other end of the second heat exchange channel is connected with a second smoke guide pipe 32, the second smoke guide pipe 32 is filled with a composite filter layer for purifying smoke, and the composite filter layer is filled with a desulfurizer, active carbon and composite fiber cotton. The bottom of the smoke collecting cover 5 is provided with an annular smoke guiding part 51, the annular smoke guiding part 51 is provided with a smoke suction port 52, and the smoke suction port 52 is opposite to the smoke outlet 83.

As shown in fig. 1, a temperature sensing device is further arranged on the furnace body 1, the temperature sensing device comprises a support 91 and a temperature sensing element 92 arranged on the support 91, the temperature sensing element 92 extends into the crucible 8, the temperature sensing element 92 can monitor the temperature in the crucible 8 in real time, the temperature sensing element 92 is connected with a PID temperature control instrument 9, and the PID temperature control instrument 9 is arranged on the outer wall of the furnace body 1.

The specific implementation mode of the scheme is as follows:

when in use, solid metal zinc and solid metal of other elements are firstly put into the crucible 8, and the crucible 8 is covered on the open end of the crucible 8.

The blower 4 is started, and the check valve 43 on the second air inlet pipe 42 is opened, so that the outside air as the combustion improver enters the combustion chamber 7 from the first air inlet pipe 41, the first heat exchange channel of the heat exchanger 3 and the second air inlet pipe 42 in sequence under the action of the blower 4. At the same time, the feed valve 22 of the feed pipe 21 is opened, the fuel in the fuel storage chamber 2 is fed into the combustion chamber 7 through the feed pipe 21, the fuel is ignited by the igniter 73, the fuel is burned in the combustion chamber 7, and the crucible 8 is heated, so that the metal in the crucible 8 is gradually melted.

During the combustion process of the fuel in the combustion chamber 7, a large amount of high temperature flue gas is continuously generated, the high temperature flue gas is discharged from the exhaust port 83 on the partition plate 82, and under the action of the exhaust fan 6 in the fume collecting hood 5, the high temperature flue gas is sucked into the fume collecting hood 5 from the exhaust port 52, enters the first fume guiding pipe 31 from the fume guiding hole 62 on the supporting plate 61 in the fume collecting hood 5, and enters the second fume guiding pipe 32 from the second heat exchanging channel of the heat exchanger 3, and harmful substances in the high temperature flue gas are finally discharged to the atmosphere after being subjected to multi-layer filtration in the composite filtering layer.

The air blower 4 continuously blows air into the combustion chamber 7, the air is subjected to heat exchange with high-temperature flue gas flowing through the second heat exchange channel of the heat exchanger 3 in the process of flowing through the first heat exchange channel of the heat exchanger 3, waste heat in the flue gas is fully recycled, the temperature of the air is increased, the high-temperature air is conveyed into the combustion chamber 7 through the second air inlet pipe 42, the combustion effect of fuel is improved, and the heat efficiency in the combustion chamber 7 is greatly improved.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. An energy-saving fuel gas zinc alloy smelting furnace is characterized in that: comprises a furnace body (1), a fuel storage chamber (2), a heat exchanger (3), a blower (4) and a smoke collecting device; an open hearth is arranged in the furnace body (1), refractory bricks (71) are lined in the hearth, the refractory bricks (71) enclose to form a combustion chamber (7), a crucible (8) is arranged in the combustion chamber (7), a crucible seat (72) used for supporting the crucible (8) is arranged at the bottom of the combustion chamber (7), a partition plate (82) is arranged at the top of the combustion chamber (7), a through hole for the crucible (8) to pass through is formed in the partition plate (82), and a plurality of smoke exhaust ports (83) are formed in the through hole; a feeding pipe (21) is connected between the fuel storage chamber (2) and the combustion chamber (7), and an igniter (73) for igniting fuel is arranged in the combustion chamber (7); a first heat exchange channel and a second heat exchange channel which are adjacent to each other are arranged in the heat exchanger (3), a first air inlet pipe (41) is connected to one end of the first heat exchange channel of the air blower (4) and the heat exchanger (3), and a second air inlet pipe (42) is connected between the other end of the first heat exchange channel and the combustion chamber (7); the smoke collecting device comprises a smoke collecting hood (5) arranged above the smoke exhaust port (83), a smoke guide mechanism is arranged in the smoke collecting hood (5), the top of the smoke collecting hood (5) and one end of a second heat exchange channel of the heat exchanger (3) are connected with a first smoke guide pipe (31), and the other end of the second heat exchange channel is connected with a second smoke guide pipe (32); the bottom of collection petticoat pipe (5) is equipped with annular smoke guide part (51), be equipped with on annular smoke guide part (51) smoking mouth (52), and smoking mouth (52) are relative with exhaust port (83).

2. The energy-saving gas zinc alloy furnace according to claim 1, characterized in that: lead cigarette mechanism and include air exhauster (6), fixedly connected with backup pad (61) in collection petticoat pipe (5), air exhauster (6) fixed mounting is on backup pad (61), and it has smoke guide hole (62) that make the flue gas pass through to gather on backup pad (61).

3. The energy-saving gas zinc alloy furnace according to claim 1, characterized in that: and the second smoke guide pipe (32) is filled with a composite filter layer for purifying smoke, and the composite filter layer is filled with a desulfurizer, active carbon and composite cellucotton.

4. The energy-saving gas zinc alloy furnace according to claim 1, characterized in that: be equipped with crucible (8) lid that is used for sealing crucible (8) on crucible (8), crucible (8) lid includes two apron (81) of splicing each other, and the one end of two apron (81) articulates respectively at the opening part of crucible (8).

5. The energy-saving gas zinc alloy furnace according to claim 1, characterized in that: the furnace body (1) is provided with a temperature sensing device for monitoring the temperature in the crucible (8) in real time, the temperature sensing device comprises a temperature sensing element (92) extending into the crucible (8), and the temperature sensing element (92) is connected with a PID temperature control instrument (9).

6. The energy-saving gas zinc alloy furnace according to claim 1, characterized in that: the outer wall cladding of combustion chamber (7) has heat preservation (12), heat preservation (12) are nanometer sheet layer, high temperature resistant heat preservation cotton layer and asbestos sheet layer from inside to outside in proper order.