CN216668288U

CN216668288U - Zinc alloy melting furnace

Info

Publication number: CN216668288U
Application number: CN202220147560.XU
Authority: CN
Inventors: 杨廉君; 龚玉兔; 林志峰; 彭桂升; 刘春连; 胡世福
Original assignee: GUANGDONG JINYI ALLOY PRODUCTS CO Ltd
Current assignee: Guangdong Jinyi New Materials Technology Co ltd
Priority date: 2022-01-20
Filing date: 2022-01-20
Publication date: 2022-06-03
Anticipated expiration: 2032-01-20

Abstract

The utility model discloses a zinc alloy melting furnace, which comprises an outer furnace shell, wherein an inner furnace chamber is arranged in the outer furnace shell, an ignition device capable of jetting spiral flame into the inner furnace chamber is arranged on the outer furnace shell, a feed inlet is arranged on the front side of the outer furnace shell, a heat extraction port is arranged above the feed inlet, a feed inlet door is hinged on the feed inlet, an exhaust device is arranged at the top of the outer furnace shell, and a discharge outlet is arranged on the rear side of the outer furnace shell.

Description

Zinc alloy melting furnace

Technical Field

The utility model relates to the technical field of melting furnaces, in particular to a zinc alloy melting furnace.

Background

The melting of zinc alloy is an important link of the die casting process, and the melting process not only obtains molten metal, but also obtains molten metal with chemical components meeting the regulations, so that the die casting can obtain good crystalline structure and little gas and impurities.

The conventional zinc alloy melting furnace can only heat raw materials in the furnace in a straight line at a fixed point when burning, the heating area is limited, the space capable of containing the raw materials in the furnace can only be reduced, the furnace is very inconvenient, fuel waste is serious, the conventional melting furnace uses coal gas, the coal gas has the characteristics of flammability, explosiveness, easy poisoning and the like according to the property of the coal gas, certain complexity and danger must exist in the production and use processes under the high-temperature condition, and the furnace is extremely unfavorable for safe production work.

In addition, when the raw materials need to be added again, the furnace can be opened for feeding only after the temperature in the furnace is completely reduced, so that the production delay is greatly prolonged, and the automatic production is not facilitated.

In addition to the need of measuring the real-time temperature by a portable temperature detector at regular time, the temperature control method needs an experienced person to observe the liquid level condition after slag scraping at regular time with naked eyes so as to judge the actual temperature of the melting furnace and further control the flame temperature. However, this is troublesome, time-consuming and labor-consuming, and does not ensure the accuracy of the temperature in the furnace stably.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a zinc alloy melting furnace.

In order to achieve the purpose, the utility model adopts the following scheme: the utility model provides a zinc alloy melting furnace, includes the outer stove outer shell be equipped with hollow interior furnace chamber in the outer stove shell be equipped with on the outer stove shell and spout the ignition who is heliciform flame to interior furnace chamber the outer stove outer shell front side is equipped with the feed inlet that can communicate interior furnace chamber the feed inlet top is located be equipped with the heat extraction mouth on the outer stove shell outer wall articulated on the feed inlet have the feeding door that can seal the feed inlet the outer stove shell top is equipped with and can discharges the external exhaust apparatus of smoke and dust in the interior furnace chamber the outer stove shell rear side is equipped with the discharge gate that can flow interior furnace intracavity molten zinc alloy liquid.

As a further scheme of the utility model, the ignition device comprises a hollow fuel mixing bin which is obliquely fixed on the outer wall of an outer furnace shell, an opening of the fuel mixing bin is communicated with the inner furnace cavity, a natural gas inlet pipe and an air inlet pipe are installed at the tail end of the fuel mixing bin, an ignition head is arranged on the side wall of the fuel mixing bin, an ignition end of the ignition head extends into the fuel mixing bin, a spark plug is installed at the top of the side wall of the ignition head, an ignition gas conveying pipe is installed at the bottom of the side wall of the ignition head, and an air supply pipe is connected to the bottom of the side wall of the fuel mixing bin.

As a preferable scheme of the utility model, a shielding device capable of preventing residual heat and smoke from rushing out at the moment of opening the door is further arranged between the feeding door and the feeding hole.

As a further scheme of the utility model, the exhaust device comprises an exhaust bin which is arranged at the top of the outer furnace shell and can be communicated with the inner furnace cavity, an exhaust fan is arranged at the top of the exhaust bin, an exhaust blade of the exhaust fan is arranged in the exhaust bin, an exhaust pipeline is communicated with one side of the exhaust bin, and one end of the exhaust opening is communicated with the exhaust pipeline.

In a preferred embodiment of the present invention, the air supply pipe is provided with an air door capable of adjusting the amount of air in the air supply pipe, the air supply pipe is externally provided with a control solenoid valve capable of controlling the opening of the air door, the other end of the air supply pipe is provided with a blowing device capable of supplying air, and the tail of the ignition head is provided with an ultraviolet induction lamp.

As a preferable scheme of the present invention, the shielding device includes a middle frame hinged to the feed port and having a through shape at the center, the feed door is hinged to the middle frame and can close or open a through hole at the center of the middle frame, a shielding curtain is provided at an opening position of the middle frame and the feed door, a first locking device capable of locking the middle frame to be unopened is provided on the feed port, and a second locking device capable of locking the feed door to the feed port to be unopened is provided on the feed door.

As a preferable scheme of the utility model, the blowing equipment comprises a blower, an air inlet pipeline is connected to the air inlet end of the blower, and the air outlet end of the blower is connected with the air inlet end of the blast pipe.

As a further scheme of the utility model, the heat exhaust port comprises a dust collection cover which is arranged on the outer wall of the outer furnace shell above the feed port, a dust exhaust pipe is arranged on the dust collection cover, and the outlet end of the dust exhaust pipe is communicated with the exhaust pipeline.

According to a preferable scheme of the utility model, the first locking device comprises a hasp hinged on one side of the outer edge of the feed port, a clamping column capable of being matched with the hasp is arranged on the middle frame, the second locking device comprises a convex plate hinged on the feed port door, a threaded hole penetrates through the convex plate, a screw rod is screwed in the threaded hole, a chuck is fixed at the end part of the screw rod, a clamping groove capable of allowing the end part of the screw rod to be inserted is fixed on one side of the outer edge of the feed port, and a rotating handle is arranged at one end, far away from the chuck, of the screw rod.

As a preferable scheme of the present invention, a refractory layer is provided on an inner wall of the inner furnace chamber.

In summary, compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the fuel mixing bin for mixing natural gas and air is arranged on the outer furnace shell, so that the effect of realizing combustion in the furnace by using clean energy to replace traditional water gas can be achieved, the automatic ignition spark plug and the sensor for monitoring the ignition condition are arranged on the fuel mixing bin, the temperature in the furnace is effectively controlled, the fuel mixing bin arranged at an inclined angle can enable the sprayed flame tongue to rotate along the inner furnace cavity to form a vortex to comprehensively heat the raw materials in the inner furnace cavity, the raw materials at each corner can be simultaneously melted, the production efficiency is accelerated, the folded shielding curtain made of metal can prevent the mixed gas of hot gas and dust from directly rushing out when a feeding door is opened, the health of personnel is ensured, the escape of the mixed gas of hot gas and dust is effectively prevented, and the mixed gas of hot gas and dust can be completely discharged through the dust discharge pipe after entering the dust collection cover through the exhaust pipe.

Drawings

FIG. 1 is a right side perspective view of the present invention.

FIG. 2 is a front perspective view of the present invention and a partially enlarged view thereof.

Fig. 3 is a top cross-sectional view of the present invention.

Fig. 4 is a perspective view showing the open state of the feeding door and the unfolded state of the blind according to the present invention.

Fig. 5 is a schematic perspective view of the open state of the feeding gate and the middle frame and an enlarged view of a partial area in the drawing.

Detailed Description

The following detailed description provides many different embodiments or examples for implementing the utility model. Of course, these are merely embodiments or examples and are not intended to be limiting. In addition, repeated reference numbers, such as repeated numbers and/or letters, may be used in various embodiments. These iterations are for simplicity and clarity of describing the present invention and are not intended to represent a particular relationship between the various embodiments and/or configurations discussed.

Furthermore, spatially relative terms, such as "below" … "," below "," inside-out "," above "," upper "and the like, may be used herein to facilitate describing one element or feature's relationship to another element or feature during use or operation of the device, and may include different orientations of the device during use or operation of the device as illustrated in the figures. The devices may be rotated 90 degrees or other orientations from different orientations and the spatially relative descriptors used therein should be interpreted as such and are not to be construed as limiting the utility model, and the terms "first" and "second" are used for descriptive purposes only and are not intended to indicate or imply relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

The utility model will be further described with reference to the following description and embodiments in conjunction with the accompanying drawings: a zinc alloy melting furnace as shown in fig. 1 to 5, comprising an outer furnace shell 1, a hollow inner furnace chamber 2 arranged in the outer furnace shell 1, a fire-resistant layer 21 arranged on the inner wall of the inner furnace chamber 2, the fire-resistant layer being made of bauxite and other fire-resistant casting materials, an ignition device 3 arranged on the outer furnace shell 1 and capable of spraying spiral flame into the inner furnace chamber 2, the ignition device 3 having an angle as shown in fig. 3, after spraying the flame along its outlet, a flame path 30 as shown in fig. 2 is formed along the inner wall of the inner furnace chamber 2, the ignition device 3 outputting downward at an angle of 20-30 degrees with the outer wall of the outer furnace shell 1 with reference to the vertical state of the outer furnace shell 1, a feed inlet 11 arranged on the front side of the outer furnace shell 1 and capable of communicating with the inner furnace chamber 2, a heat discharge outlet 12 arranged on the outer wall of the outer furnace shell 1 above the feed inlet 11, the furnace is characterized in that a feeding door 13 capable of sealing the feeding hole 11 is hinged to the feeding hole 11, an observation window 15 is arranged on the feeding door 13, an exhaust device 4 capable of exhausting smoke dust in the inner furnace cavity 2 to the outside is arranged at the top of the outer furnace shell 1, a discharging hole 14 capable of enabling molten zinc alloy liquid in the inner furnace cavity 2 to flow out is arranged on the rear side of the outer furnace shell 1, and a shielding device 5 capable of preventing residual heat and smoke from being flushed out when the furnace is opened is further arranged between the feeding door 13 and the feeding hole 11.

As shown in fig. 1 to 5, the ignition device 3 includes a hollow fuel mixing bin 31 fixed on the outer wall of the outer furnace shell 1 in an inclined manner, an opening of the fuel mixing bin 31 is communicated with the inner furnace chamber 2, a natural gas inlet pipe 32 and an air inlet pipe 36 are installed at the tail end of the fuel mixing bin 31, an ignition head 33 is installed on the side wall of the fuel mixing bin 31, an ignition end of the ignition head 33 extends into the fuel mixing bin 31, a spark plug 331 is installed at the top of the side wall of the ignition head 33, an ignition gas delivery pipe 332 is installed at the bottom of the side wall of the ignition head 33, the ignition gas delivery pipe 332 delivers a small amount of pushed natural gas into the ignition head, the ignition head is ignited by the spark plug 331, the ignited flame ignites the mixed gas of the natural gas and the air in the fuel mixing bin 31, a blast pipe 34 is connected to the bottom of the side wall of the fuel mixing bin 31, the air supply pipe 34 is provided with an air door (not shown in the figure, which is specifically characterized in that a turning plate is hinged in the air supply pipe 34, a rotating shaft at one end of the turning plate extends out of the outer wall of the air supply pipe 34 and is connected with a motor or a cylinder arranged on the outside, the angle of the turning plate is adjusted by switching on and off the connection of the motor or the cylinder, so as to realize the adjustment of the air quantity, a control electromagnetic valve 341 capable of controlling the opening degree of the air door is arranged outside the air supply pipe 34, the stroke of the motor or the cylinder is controlled by the control electromagnetic valve 341, the other end of the air supply pipe 34 is provided with a blowing device 35 capable of supplying air, the blowing device 35 mainly blows air into the fuel mixing bin 31, so that the mixed gas of natural gas and air in the fuel mixing bin 31 can be blown into the inner furnace cavity 2 after being ignited by a spark plug 331, the tail part of the ignition head 33 is provided with an ultraviolet sensor 333, and the ultraviolet sensor 333 mainly monitors whether the flame is extinguished, the principle of the device is the same as that of the existing natural gas stove for flameout prevention, meanwhile, whether flameout occurs in the stove or not can be judged through the ultraviolet sensor 333, the temperature in the stove is controlled, and the danger of whether flameout occurs in the traditional manual detection or not is reduced.

In addition, as shown in fig. 1 and fig. 2 and fig. 4 and fig. 5, exhaust apparatus 4 including set up outer stove shell 1 top can with exhaust bin 40 of interior furnace chamber 2 intercommunication, install air exhauster 41 at exhaust bin 40 top, the convulsions leaf of this air exhauster 41 sets up in exhaust bin 40 one side intercommunication has exhaust duct 42, the one end of heat extraction opening 12 with exhaust duct 42 is linked together, and heat extraction opening 12 is including feed inlet 11 top is located the dust cage 121 that sets up on outer stove shell 1 outer wall is equipped with dust exhaust pipe 122 on dust cage 121, this dust exhaust pipe 122 exit end with exhaust duct 42 is linked together.

The following are specifically mentioned: as shown in fig. 4 and 5, the shielding device 5 includes a middle frame 51 hinged on the feeding port 11 and having a through shape at the center, the feeding gate 13 is hinged on the middle frame 51 and can close or open a through hole 511 at the center of the middle frame 51, a shielding curtain 52 is disposed at the opening position of the middle frame 51 and the feeding gate 13, a first locking device 6 capable of locking the middle frame 51 to be not opened is disposed on the feeding port 11, a second locking device 7 capable of locking the feeding gate 13 on the feeding port 11 to be not opened is disposed on the feeding gate 13, wherein the first locking device 6 includes a buckle 61 hinged on one side of the outer edge of the feeding port 11, a clamping column 62 capable of being matched with the buckle 61 is disposed on the middle frame 51, the second locking device 7 includes a convex plate 71 hinged on the feeding gate 13, a threaded hole is penetrated on the convex plate 71, a screw rod 72 is screwed in the threaded hole, a chuck 73 is fixed at the end part of the screw rod 72, a clamping groove 74 which can allow the end part of the screw rod 72 to be inserted is fixed at one side of the outer edge of the feed port 11, a rotating handle 75 is arranged at one end of the screw rod 72 far away from the chuck 73, when the feed door 13 needs to be opened for feeding, the chuck 73 at the end part of the screw rod 72 is firstly separated and loosened from one side of the clamping groove 74 through the rotating handle 75, then the convex plate 71 is rotated to enable the screw rod 72 to come out of the clamping groove 74, at the moment, the middle frame 51 is still fixed on the feed port 11 through the buckle 61, the feed door 13 is opened, the folding shielding curtain made of metal is pulled open, smoke dust and hot wave gas in the inner furnace cavity 2 can be blocked by the shielding curtain, the smoke and the hot wave gas enter the dust collecting cover 121 along with rising hot air flow and then are guided to the exhaust pipeline 42 to be exhausted, after the smoke and the hot wave gas are weakened, the buckle 61 is then taken off from the clamping column 62, the feed port 11 can be completely exposed, the feeding is carried out. In the embodiment, the second locking device 7 and the first locking device 6 are both arranged in a conventional oven door locking manner, and specifically, the arrangement is described in the reference figures in combination with the prior art.

While there have been shown and described the fundamental principles and principal features of the utility model and advantages thereof, it will be understood by those skilled in the art that the utility model is not limited by the embodiments described above, which are given by way of illustration of the principles of the utility model, but is susceptible to various changes and modifications without departing from the spirit and scope of the utility model as defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a zinc alloy melting furnace, includes outer stove outer covering (1) be equipped with hollow interior furnace chamber (2) in outer stove outer covering (1), its characterized in that: be equipped with on outer stove outer covering (1) and spout ignition (3) that are spiral flame to interior furnace chamber (2) be equipped with feed inlet (11) that can communicate interior furnace chamber (2) outside stove outer covering (1) front side is equipped with feed inlet (11) that can communicate interior furnace chamber (2) feed inlet (11) top is located be equipped with heat extraction mouth (12) on the outer stove outer covering (1) outer feed inlet (11) go up to articulate has feed door (13) that can seal feed inlet (11) outer stove outer covering (1) top is equipped with and to discharge external exhaust apparatus (4) with the smoke and dust in interior furnace chamber (2) outer stove outer covering (1) rear side is equipped with discharge gate (14) that can flow interior furnace chamber (2) interior molten zinc alloy liquid.

2. The zinc alloy melting furnace according to claim 1, wherein the ignition device (3) comprises a hollow fuel mixing bin (31) obliquely fixed on the outer wall of the outer furnace shell (1), the opening of the fuel mixing bin (31) is communicated with the inner furnace chamber (2), a natural gas inlet pipe (32) and an air inlet pipe (36) are installed at the tail end of the fuel mixing bin (31), an ignition head (33) is arranged on the side wall of the fuel mixing bin (31), the ignition end of the ignition head (33) extends into the fuel mixing bin (31), a spark plug (331) is installed at the top of the side wall of the ignition head (33), an ignition gas delivery pipe (332) is installed at the bottom of the side wall of the ignition head (33), and a blast pipe (34) is connected to the bottom of the side wall of the fuel mixing bin (31).

3. A zinc alloy melting furnace according to claim 1, characterized in that between said inlet gate (13) and said inlet opening (11) there is also provided a shielding device (5) capable of preventing the residual heat and the fumes from rushing out at the moment of opening the door.

4. The zinc alloy melting furnace according to claim 1, wherein said exhaust device (4) comprises an exhaust bin (40) arranged on the top of the outer furnace shell (1) and capable of communicating with said inner furnace chamber (2), an exhaust fan (41) is installed on the top of the exhaust bin (40), an exhaust blade of the exhaust fan (41) is arranged in the exhaust bin (40), an exhaust duct (42) is communicated with one side of the exhaust bin (40), and one end of said exhaust port (12) is communicated with said exhaust duct (42).

5. The zinc alloy melting furnace according to claim 2, wherein the blast pipe (34) is provided with a damper capable of adjusting the air quantity in the blast pipe (34), the outside of the blast pipe (34) is provided with a control electromagnetic valve (341) capable of controlling the opening degree of the damper, the other end of the blast pipe (34) is provided with a blowing device (35) capable of supplying air, and the tail part of the ignition head (33) is provided with an ultraviolet sensor (333).

6. A zinc alloy melting furnace according to claim 3, characterized in that said blocking device (5) comprises a central frame (51) hinged to the feed opening (11) and having a through shape, said feed door (13) is hinged to said central frame (51) and can close or open the through opening in the center of said central frame (51), a blocking curtain (52) is provided at the opening of said central frame (51) and said feed door (13), said feed opening (11) is provided with a first locking device (6) capable of locking the central frame (51) against opening, and said feed door (13) is provided with a second locking device (7) capable of locking the feed door (13) against opening on said feed opening (11).

7. A zinc alloy melting furnace according to claim 5, characterized in that said blowing means (35) comprises a blower (351), an air inlet pipe (352) is connected to the air inlet end of the blower (351), and the air outlet end of the blower (351) is connected to the air inlet end of said blast pipe (34).

8. The zinc alloy melting furnace according to claim 4, characterized in that said heat exhaust port (12) comprises a dust hood (121) disposed on the outer wall of said outer furnace shell (1) above said feed port (11), a dust exhaust pipe (122) is disposed on said dust hood (121), and the outlet end of said dust exhaust pipe (122) is connected to said exhaust duct (42).

9. The zinc alloy melting furnace according to claim 6, wherein the first locking device (6) comprises a buckle (61) hinged to one side of the outer edge of the feed port (11), a clamping column (62) capable of being matched with the buckle (61) is arranged on the middle frame (51), the second locking device (7) comprises a convex plate (71) hinged to the feed door (13), a threaded hole penetrates through the convex plate (71), a screw rod (72) is screwed in the threaded hole, a chuck (73) is fixed to the end of the screw rod (72), a clamping groove (74) capable of allowing the end of the screw rod (72) to be inserted is fixed to one side of the outer edge of the feed port (11), and a rotating handle (75) is arranged at one end, far away from the chuck (73), of the screw rod (72).

10. A zinc alloy melting furnace according to any one of the preceding claims 1-8, characterized in that a refractory layer (21) is provided on the inner wall of the inner furnace chamber (2).