CN218443284U - Effectual metal melting furnace keeps warm - Google Patents

Abstract

The utility model discloses a metal melting furnace with good heat preservation effect, which comprises a furnace body, wherein an induction coil is installed on the inner wall of the furnace body, the furnace body is provided with a ventilation groove, the inner wall of the ventilation groove is fixedly provided with heat dissipation fins, the top of the furnace body is laminated with a cover body, and the outside of the furnace body is provided with a heat preservation mechanism; the heat preservation mechanism comprises a first air valve, a semiconductor refrigeration piece, an air inlet pipe, an air outlet pipe, a second air valve and a fan. The utility model relates to a metal melts technical field, makes becoming the vacuum state in the air channel through fan, first pneumatic valve and second pneumatic valve, because the air channel is in the furnace body, this makes outside processing will not make the air channel suffer destruction, can not make the heat preservation effect reduce, because the vacuum does not transmit the heat, can make the inside temperature of furnace body lower the temperature in advance, effectually prevented that the staff can not be scalded by the gas that scorches hot when opening the lid and empting molten metal.

Description

Effectual metal melting furnace keeps warm

Technical Field

The utility model relates to a metal melts technical field, specifically is an effectual metal melting furnace keeps warm.

Background

In the metallurgical field, it is very general and very important technology to melt the metal, and melt the realization of metal technology, then need the support of metal melting furnace equipment, and the performance of metal melting furnace, there is decisive influence to actual production, in the requirement of current smelting processing, need the melting furnace of good heat preservation effect, a metal melting furnace that keeps warm effectually under this situation just arises, for example, the application number is "CN202021275630.7" a metal melting furnace that intensifies fast keeps warm effectually, this utility model discloses a metal melting furnace that intensifies fast keeps warm effectually, including stirring rake, PMKD and rotatory handle, the equal fixedly connected with bracing piece in both sides on PMKD top, and the equal fixedly connected with rotatory handle in one side of bracing piece, one side of rotatory handle runs through the lateral wall of bracing piece and fixedly connected with the device body, and the intermediate position department fixedly connected with driving motor of device body bottom, the lateral wall of device body all has the hitting pole, this utility model through installing the dwang, the rotation layer and hitting pole of stirring rake, the heating pole that the bottom is in the pivoted is heated the outside and the dwang piece that the rotation is heated in the process, thereby the metal piece that the heating that the process that the heating that the stirring rake is carried out can be carried out the most even and can be carried out according to the continuous heating that has been installed, and has avoided the metal piece that the metal to have been heated, and can be carried out the efficiency to have been increased gradually.

The metal melting furnace of prior art uses "c type groove" and the inside heat preservation of shielding plate and device body to keep warm to the metal block rotates when passing through dwang and striking rod, makes the melting rate of metal block in melting the stove accelerate.

However, the metal melting furnace in the prior art can cause a part of the heat-insulating layer to fall off due to the collision between the heat-insulating layer of the melting furnace and the metal block after the metal processing, so that the heat-insulating layer falls off to cause the heat-insulating effect to be poor, and meanwhile, the shielding plate is not provided with any heat-insulating treatment, so that the heat-insulating effect is further weakened.

Disclosure of Invention

The utility model provides a not enough to prior art, the utility model provides an effectual metal melting furnace keeps warm has solved prior art's metal melting furnace when processing metal, because the heat preservation of melting furnace is in the collision of the work that has passed through and metal block, can let some on the heat preservation drop, and then makes droing of heat preservation can make the heat preservation effect variation, also does not have any heat preservation treatment that prevents on the shielding plate simultaneously, this further weakening the heat preservation effect.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a metal melting furnace with good heat preservation effect comprises a furnace body, wherein an induction coil is installed on the inner wall of the furnace body, a vent groove is formed in the furnace body, heat dissipation fins are fixedly installed on the inner wall of the vent groove, a cover body is attached to the top of the furnace body, and a heat preservation mechanism is arranged outside the furnace body; the heat preservation mechanism comprises a first air valve, a semiconductor refrigeration piece, an air inlet pipe, an air outlet pipe, a second air valve and a fan; one side fixed mounting of intake pipe is in one side of furnace body, intake pipe and air channel intercommunication, first pneumatic valve is installed to the one end of intake pipe, semiconductor refrigeration piece is installed at the top of intake pipe, the opposite side of intake pipe is equipped with the outlet duct, the opposite side in the furnace body is installed to the one end of outlet duct, outlet duct and air channel intercommunication, the second pneumatic valve is installed to the other end of outlet duct, the fan is installed to the output of second pneumatic valve, the outer wall below rigid coupling of fan in the outer wall of furnace body.

Preferably, the top fixedly connected with support body of furnace body, the top threaded connection of support body has the threaded rod, the bottom of threaded rod is passed through the bearing and is rotated and connect in the top of lid, the equal slip joint in the inner wall both sides of support body in outer wall both sides of lid.

Preferably, the bottom of the inner wall of the furnace body is fixedly connected with a blocking cylinder, and a stirring mechanism is arranged in the furnace body; the stirring mechanism comprises a first stepping motor, a first shell, a round shaft, an insertion block, a rotating block, a second shell and a stirring rod; the utility model discloses a furnace body, including the furnace body, the top of first casing fixed connection in the bottom of furnace body, the first step motor of inside fixedly connected with of first casing, the output fixedly connected with circle axle of first step motor, the top and the below of the outer wall of circle axle all rotate through the bearing respectively and connect in the inner wall of furnace body and block a section of thick bamboo inner wall, the top fixedly connected with of circle axle inserts the piece, insert the cooperation of piece and connect in the inner wall of rotatory piece, the inner wall laminating of rotatory piece is in the outer wall that blocks a section of thick bamboo, the top of rotatory piece is passed through the bearing and is rotated and connect in the bottom of lid, a plurality of second casings of the outer wall fixedly connected with of rotatory piece, the puddler is all installed to the outer wall both sides of rotatory piece, a plurality of through-holes have been seted up to the below of second casing.

Preferably, both sides of the inner wall of the second shell are rotatably connected with a first cylinder through a pin shaft, the inner wall of the first cylinder is connected with a second cylinder in a matching manner, the top of the second cylinder is rotatably connected with a rotating plate through a pin shaft, one end of the rotating plate is rotatably connected to the top of the outer wall of the second shell through a pin shaft, the outer wall of the first cylinder is fixedly connected with a spring, one end of the spring is fixedly connected to the outer wall of the second cylinder, and the outer walls of the first cylinder and the second cylinder are movably connected to the inner wall of the spring.

Preferably, the both ends fixedly connected with straight axle of the outer wall of support body, the outer wall of straight axle rotates through the bearing and is connected with the bottom plate, the top fixedly connected with second step motor of bottom plate is close to second step motor the first sprocket of the terminal fixedly connected with of straight axle, the below of first sprocket rotates through the chain and is connected with the second sprocket, the side fixedly connected with second step motor of second sprocket, second step motor rigid coupling in the top of bottom plate.

The utility model provides a metal melting furnace with good heat preservation effect. The method has the following beneficial effects: this effectual metal melting furnace keeps warm passes through the fan, and first pneumatic valve and second pneumatic valve make becoming the vacuum state in the air channel, because the air channel is in the furnace body, this makes outside processing will not make the air channel suffer destruction, can not make the heat preservation effect reduce, because the vacuum does not transmit the heat, because the vacuum cavity of lid and the air channel that is in the vacuum state surround the furnace body most again simultaneously, compare the prior art who uses the heat preservation, the utility model discloses a heat preservation effect is better, simultaneously through the semiconductor refrigeration piece, heat radiation fins and fan's cooperation, this makes when needs empty the molten metal, can make the inside temperature of furnace body lower in advance, has effectually prevented that the staff can not scalded by the gas that scorching heat when opening the lid and empting the molten metal.

Through the first step motor, the cooperation of circle axle and second casing, can be so that the metal inside the second casing rotates, because the utility model discloses a melting furnace is induction furnace, can make the metal block produce the phenomenon of Barber polarization, and when rotating through with the metal block, can effectual elimination Barber polarization, it is more even to make the metal block heating, compare with ordinary induction furnace, the metal melts speed rapider, the below hole of second casing simultaneously, can make molten metal and fritter metal flow into in the furnace body, the effect of stirring is strengthened through the cooperation messenger of puddler, make fritter metal fully contact and rotatory in the molten metal simultaneously, make melting speed improve once, simultaneously because the metal inside the furnace body is enough little, effectively reduce the metal and scrape the possibility of bumping at the furnace body inner wall, consequently compare with prior art, great reduction impurity gets into the possibility of molten metal, the yield of processing metal has been improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of an air outlet pipe, a second air valve and a fan in FIG. 1;

FIG. 3 is a schematic structural diagram of the first air valve, the semiconductor refrigeration sheet and the air inlet pipe in FIG. 2;

FIG. 4 is a schematic structural view of the circular shaft, the second housing and the rotary block of FIG. 2;

FIG. 5 is a schematic view of the spring, first cylinder and second cylinder of FIG. 2;

fig. 6 is an appearance schematic diagram of the present invention.

In the figure: 1. the furnace body, 2, first pneumatic valve, 3, semiconductor refrigeration piece, 4, intake pipe, 5, heat radiation fin, 6, outlet duct, 7, second pneumatic valve, 8, fan, 9, first casing, 10, first step motor, 11, round axle, 12, second casing, 13, rotatory piece, 14, block a section of thick bamboo, 15, puddler, 16, induction coil, 17, rotor plate, 18, grafting piece, 19, threaded rod, 20, support body, 21, lid, 22, first step motor, 23, chain, 24, second sprocket, 25, spring, 26, first drum, 27, second drum, 28, bottom plate, 29, straight axle, 30, first sprocket, 31, air duct.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The metal melting furnace of prior art is when processing metal, because the heat preservation of melting furnace can let partly on the heat preservation drop at the work that has passed through and the collision of metal block, and then makes the heat preservation can make the heat preservation effect variation that drops, also does not have any on the shielding plate simultaneously and prevents the heat preservation processing, this further weakening the heat preservation effect.

In view of this, the utility model provides an effectual metal melting furnace keeps warm, through the fan, first pneumatic valve and second pneumatic valve make becoming the vacuum state in the air channel, because the air channel is in the furnace body, this makes outside processing can not make the air channel suffer destruction, can not make the heat preservation effect reduce, because the vacuum does not transmit the heat, simultaneously again because the vacuum cavity of lid and the air channel that is in the vacuum state surround the furnace body most, compare the prior art who uses the heat preservation, the utility model discloses a heat preservation effect is better, simultaneously through the semiconductor refrigeration piece, the cooperation of heat radiation fins and fan, this makes when needs empty the molten metal, can make the inside temperature of furnace body cooling in advance, and the effectual staff that has prevented can not scalded by the gas that scorches hot when opening the lid and empting the molten metal.

The following working principles, detailed connecting means thereof, and following main descriptions of the working principles and processes shall be referred to by those skilled in the art to connect the components in this case in sequence, and the specific connecting and operating sequence shall be described below.

The first embodiment is as follows: as can be seen from fig. 1, 2, 3 and 6, the metal melting furnace with good heat preservation effect comprises a furnace body 1, wherein an induction coil 16 is installed on the inner wall of the furnace body 1, a vent groove 31 is formed in the furnace body 1, a heat dissipation fin 5 is fixedly installed on the inner wall of the vent groove 31, a cover body 21 is attached to the top of the furnace body 1, and a heat preservation mechanism is arranged outside the furnace body 1; the heat preservation mechanism comprises a first air valve 2, a semiconductor refrigeration piece 3, an air inlet pipe 4, an air outlet pipe 6, a second air valve 7 and a fan 8; the model of the fan 8 is not specifically limited to meet the actual working requirements, after air is completely exhausted from the vent groove 31 through the fan 8, the air becomes a vacuum state, one side of the air inlet pipe 4 is fixedly installed on one side of the furnace body 1, the air inlet pipe 4 is communicated with the vent groove 31, one end of the air inlet pipe 4 is provided with a first air valve 2, the top of the air inlet pipe 4 is provided with a semiconductor refrigerating sheet 3, the other side of the air inlet pipe 4 is provided with an air outlet pipe 6, one end of the air outlet pipe 6 is installed on the other side of the furnace body 1, the air outlet pipe 6 is communicated with the vent groove 31, the other end of the air outlet pipe 6 is provided with a second air valve 7, the output end of the second air valve 7 is provided with the fan 8, the lower part of the outer wall of the fan 8 is fixedly connected to the outer wall of the furnace body 1, and when the temperature of the furnace body is reduced, the first air valve 2 and the second air valve 7 are opened, the fan 8 and the semiconductor refrigerating sheet 3 are started at the same time, so that cold air continuously contacts with the radiating fins 5 to reduce the temperature of the furnace body 1, and the vessel for pouring molten metal, thereby facilitating the movement and preventing workers from being scalded when the molten metal movement;

in the specific implementation process, it is worth pointing out that the model of the fan 8 is not limited to meet the actual working requirement, after the air is exhausted from the vent groove 31 through the fan 8, the air becomes a vacuum state, and when the temperature of the furnace body is to be reduced, the first air valve 2 and the second air valve 7 are opened, the fan 8 and the semiconductor refrigerating sheet 3 are started simultaneously, so that the air is continuously contacted with the heat dissipation fins 5 to reduce the temperature of the furnace body 1, so as to pour the molten metal, the container for holding the molten metal is convenient to move, the molten metal is prevented from being moved by a worker, and the molten metal is prevented from being scalded when being poured, the vent groove 31 becomes a vacuum state through the fan 8, the vent groove 31 is in the furnace body, so that the vent groove 31 is not damaged by external processing, the heat preservation effect is not reduced, the vacuum does not transfer heat, and meanwhile, most of the furnace body 1 is prevented from being wrapped by the vacuum cavity of the cover body 21 and the vent groove 31 in the vacuum state, compared with the prior art, the heat preservation effect is better, the heat preservation effect is prevented from being lowered by opening the heat dissipation fins 3 and the heat preservation sheet 3 when the heat dissipation fins 3 and the hot metal is poured in advance, so that the metal can be poured in the furnace body, and the metal can be poured in the metal when the hot metal can be poured in the hot metal, and the metal can be poured in the furnace body, and the metal can be effectively, and the metal can be poured in the heat preservation and the heat preservation of the furnace body;

further, the top of the furnace body 1 is fixedly connected with a frame body 20, the top of the frame body 20 is in threaded connection with a threaded rod 19, the bottom end of the threaded rod 19 is rotatably connected to the top of a cover body 21 through a bearing, a vacuum cavity is arranged inside the cover body 21, and two sides of the outer wall of the cover body 21 are slidably clamped to two sides of the inner wall of the frame body 20;

in the specific implementation process, it is worth particularly pointing out that the cover body 21 is internally provided with a vacuum cavity, and the matching of the frame body 20 and the threaded rod 19 can enable the cover body 21 to be tightly attached to the top of the furnace body 1;

specifically, when using this effectual metal melting furnace that keeps warm, when needs melt the metal, at this moment, close first air valve 2 tightly, start fan 8 simultaneously and find time the air in air duct 31, make air duct 31 inside become vacuum state, close second air valve 7 tightly again, close fan 8 simultaneously, so most of furnace body 1 and the most of lid 21 will be surrounded by the cavity of vacuum, because the vacuum does not conduct heat, this makes furnace body 1 have good heat preservation effect, when needs empty the molten metal, open first air valve 2 and second air valve 7, start fan 8 and refrigeration semiconductor piece 3 simultaneously, make air conditioning constantly take away the temperature of furnace body 1 through heat radiation fins 5, after starting a period of time, just stop the heat dissipation, pour the metal of molten state into the container that holds the molten metal, and is convenient, get into processing on next step.

Example two: as can be seen from fig. 1, 2, 3, 5 and 6, the bottom of the inner wall of the furnace body 1 is fixedly connected with a blocking cylinder 14, and a stirring mechanism is arranged inside the furnace body 1; the stirring mechanism comprises a first stepping motor 10, a first shell 9, a round shaft 11, an inserting block 18, a rotating block 13, a second shell 12 and a stirring rod 15; the top of the first shell 9 is fixedly connected to the bottom of the furnace body 1, the inside of the first shell 9 is fixedly connected with a first stepping motor 10, the limit number of the first stepping motor 10 is not specifically limited herein to meet the actual work requirement, the first stepping motor 10 drives the rotary block 13 to rotate by driving the insertion block 18 on the circular shaft 11, the output end of the first stepping motor 10 is fixedly connected with the circular shaft 11, the upper part and the lower part of the outer wall of the circular shaft 11 are respectively connected to the inner wall of the furnace body 1 and the inner wall of the blocking cylinder 14 through bearings in a rotating manner, the top of the circular shaft 11 is fixedly connected with the insertion block 18, the insertion block 18 is connected to the inner wall of the rotary block 13 in a matching manner, the inner wall of the rotary block 13 is attached to the outer wall of the blocking cylinder 14, the top of the rotary block 13 is connected to the bottom of the cover body 21 through bearings in a rotating manner, the rotary block 13 transmits the power of the first stepping motor 10 to the stirring rod 15 and the second shell 12, the outer wall of the rotary block 13 is fixedly connected with a plurality of second shells 12, the outer walls of the rotary blocks 13, the stirring rods 15 are mounted on two sides of the outer walls of the rotary blocks 13, and through holes are formed below the second shells 12;

in the specific implementation process, it is worth particularly pointing out that the limit number of the first stepping motor 10 is not specifically limited herein to meet the actual working requirement, the first stepping motor 10 drives the rotary block 13 to rotate by driving the insertion block 18 on the circular shaft 11, the rotary block 13 transmits the power of the first stepping motor 10 to the stirring rod 15 and the second casing 12, and the metal inside the second casing 12 can be rotated by matching the first stepping motor 10, the circular shaft 11 and the second casing 12, because the melting furnace of the present invention is an induction furnace, the metal block can generate the phenomenon of Barber polarization, and when the metal block is rotated, the Barber polarization can be effectively eliminated, so that the metal block is heated more uniformly, compared with a common induction furnace, the metal melting speed is faster, and meanwhile, the hole below the second casing 12 can make the molten metal and the small metal flow into the furnace body, the stirring effect is enhanced by matching the stirring rod 15, and meanwhile, the small metal is fully contacted and rotated in the molten metal, so that the speed is increased, the yield of the molten metal is increased, and the yield of the metal and the metal can be effectively reduced by 1, and the yield is increased by the existing technology that the metal can be effectively reduced and the metal can enter the furnace body and the furnace body can be processed more easily processed;

furthermore, both sides of the inner wall of the second housing 12 are rotatably connected with a first cylinder 26 through a pin shaft, the inner wall of the first cylinder 26 is connected with a second cylinder 27 in a matching manner, the top of the second cylinder 27 is rotatably connected with a rotating plate 17 through a pin shaft, one end of the rotating plate 17 is rotatably connected to the top of the outer wall of the second housing 12 through a pin shaft, the outer wall of the first cylinder 26 is fixedly connected with a spring 25, one end of the spring 25 is fixedly connected to the outer wall of the second cylinder 27, and the outer walls of the first cylinder 26 and the second cylinder 27 are movably connected to the inner wall of the spring 25;

in the specific implementation process, it is worth pointing out that the rotating plate 17 can be enabled by the cooperation of the first cylinder 26, the second cylinder 27 and the spring 25, and when the rotating plate 17 can be inserted into the second housing 12 when being subjected to a force, the rotating plate 17 can restore the rotating plate 17 to the original position by the cooperation of the spring 25, the first cylinder 26 and the second cylinder 27.

Specifically, based on the above embodiment, when it is required to melt the metal block in the second casing 12, the induction coil 16 is started, and the first stepping motor 10 is also started, so that the power is transmitted to the insertion block 18 through the circular shaft 11 at the output end of the first stepping motor 10, and then transmitted to the second casing 12 and the stirring rod 15 on the rotating block 13 through the insertion block 18, at this time, because the metal in the second casing 12 overcomes the Barber polarization, and at the same time, the molten metal and the small metal flow out from the dispensing hole of the second casing 12, because the stirring rod 15 also rotates, the small metal falling into the furnace body 1 also rotates in the molten metal, and the small metal block also overcomes the Barber polarization, and at this time, the small metal is uniformly heated by the electromagnetic induction through the full contact with the molten metal, so that the small metal is melted.

Example three: as can be seen from fig. 1 and 6, two ends of the outer wall of the frame body 20 are fixedly connected with a straight shaft 29, the outer wall of the straight shaft 29 is rotatably connected to the bottom plate 28 through a bearing, the top of the bottom plate 28 is fixedly connected with a second stepping motor 22, the type of the second stepping motor 22 is not specifically limited herein, and the actual working requirement is met, the second stepping motor 22 transmits power to the chain 23 through a second chain wheel 24, the chain 23 transmits power to a first chain wheel 30, the power of the first chain wheel 30 is transmitted to the straight shaft 29, so that the frame body 20 connected with the straight shaft 29 can also obtain the power of the straight shaft 29, the end of the straight shaft 29 near the heat dissipation fins of the second stepping motor 22 is fixedly connected with the first chain wheel 30, the lower part of the first chain wheel 30 of the heat dissipation fins 5 is rotatably connected with the second chain wheel 24 through the chain 23, the side surface of the second chain wheel 24 is fixedly connected with the second stepping motor 22, and the heat dissipation fins 22 are fixedly connected to the top of the bottom plate 28;

in the specific implementation process, it is worth particularly pointing out that the type of the second stepping motor 22 is not specifically limited herein, and the actual working requirement is met, the second stepping motor 22 transmits power to the chain 23 through the second chain wheel 24, the chain 23 transmits power to the first chain wheel 30, the power of the first chain wheel 30 is transmitted to the straight shaft 29, so that the rack body 20 connected with the straight shaft 29 can also obtain the power of the straight shaft 29, the rotation of the rack body 20 is realized through the cooperation of the second stepping motor 22, the first chain wheel 30 and the second chain wheel 24, and meanwhile, as the rack body 20 is fixedly connected with the furnace body 1, the furnace body 1 will also topple;

specifically, on the basis of the above embodiment, when molten metal needs to be poured, when the cooling step is completed, the threaded rod 19 on the frame body 20 is rotated at this time, the cover body is driven to move upwards through the threaded rod 19, when the molten metal moves to a predetermined proper position, the second stepping motor 22 is started at this time, the second sprocket 24 on the driving end of the second stepping motor 22 rotates, the power of the second sprocket 24 is transmitted to the first sprocket 30 through the chain 23, the first sprocket 30 drives the frame body 20 on the straight shaft 29 to rotate, and meanwhile, the furnace body 1 on the frame body 20 also rotates, and after the molten metal is discharged after the molten metal is rotated to a predetermined position, the second stepping motor 22 reversely rotates, so that the furnace body 1 returns to the position for melting and processing the metal.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted", "disposed", "connected", "fixed", "screwed" and the like are to be understood broadly, and may be, for example, a fixed connection, a detachable connection, or an integral body; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides an effectual metal melting furnace keeps warm, includes furnace body (1), its characterized in that: an induction coil (16) is installed on the inner wall of the furnace body (1), an air channel (31) is formed in the furnace body (1), heat dissipation fins (5) are fixedly installed on the inner wall of the air channel (31), a cover body (21) is attached to the top of the furnace body (1), and a heat preservation mechanism is arranged outside the furnace body (1);

the heat preservation mechanism comprises a first air valve (2), a semiconductor refrigeration sheet (3), an air inlet pipe (4), an air outlet pipe (6), a second air valve (7) and a fan (8);

one side fixed mounting of intake pipe (4) in one side of furnace body (1), intake pipe (4) and air channel (31) intercommunication, first air valve (2) are installed to the one end of intake pipe (4), semiconductor refrigeration piece (3) are installed at the top of intake pipe (4), the opposite side of intake pipe (4) is equipped with outlet duct (6), the opposite side in furnace body (1) is installed to the one end of outlet duct (6), outlet duct (6) and air channel (31) intercommunication, second pneumatic valve (7) are installed to the other end of outlet duct (6), fan (8) are installed to the output of second pneumatic valve (7), the outer wall below rigid coupling of fan (8) in the outer wall of furnace body (1).

2. The metal melting furnace with good heat preservation effect according to claim 1, characterized in that: the top fixedly connected with support body (20) of furnace body (1), the top threaded connection of support body (20) has threaded rod (19), the bottom of threaded rod (19) is rotated through the bearing and is connected in the top of lid (21), the equal slip joint in the inner wall both sides of support body (20) in outer wall both sides of lid (21).

3. The metal melting furnace with good heat preservation effect according to claim 2, characterized in that: the bottom of the inner wall of the furnace body (1) is fixedly connected with a blocking cylinder (14), and a stirring mechanism is arranged in the furnace body (1);

the stirring mechanism comprises a first stepping motor (10), a first shell (9), a round shaft (11), an insertion block (18), a rotating block (13), a second shell (12) and a stirring rod (15);

the top fixed connection of first casing (9) is in the bottom of furnace body (1), the first step motor (10) of the inside fixedly connected with of first casing (9), output fixedly connected with circle axle (11) of first step motor (10), the top and the below of the outer wall of circle axle (11) all rotate through the bearing respectively and connect in the inner wall of furnace body (1) and the inner wall that blocks a section of thick bamboo (14), the top fixedly connected with of circle axle (11) inserts piece (18), insert the inner wall that connects in rotatory piece (13) of piece (18) cooperation, the inner wall laminating of rotatory piece (13) is in the outer wall that blocks a section of thick bamboo (14), the top of rotatory piece (13) is rotated through the bearing and is connected in the bottom of lid (21), a plurality of second casings (12) of outer wall fixedly connected with of rotatory piece (13), puddler (15) are all installed to the outer wall both sides of rotatory piece (13), a plurality of through-holes have been seted up to the below of second casing (12).

4. The metal melting furnace with good heat preservation effect according to claim 3, characterized in that: the inner wall of second casing (12) both sides all are connected with first drum (26) through the round pin axle rotation, the inner wall cooperation of first drum (26) is connected with second drum (27), the top of second drum (27) is connected with rotor plate (17) through the round pin axle rotation, the one end of rotor plate (17) is rotated through the round pin axle and is connected in the outer wall top of second casing (12), the outer wall fixedly connected with spring (25) of first drum (26), the one end fixed connection of spring (25) is in the outer wall of second drum (27), the outer wall swing joint of first drum (26) and second drum (27) is in the inner wall of spring (25).

5. The metal melting furnace with good heat preservation effect according to claim 2, characterized in that: the both ends fixedly connected with straight-shaft (29) of the outer wall of support body (20), the outer wall of straight-shaft (29) rotates through the bearing and is connected with bottom plate (28), top fixedly connected with second step motor (22) of bottom plate (28) is close to second step motor (22) the first sprocket of the terminal fixedly connected with of straight-shaft (29) (30), the below of first sprocket (30) rotates through chain (23) and is connected with second sprocket (24), side fixedly connected with second step motor (22) of second sprocket (24), second step motor (22) rigid coupling is in the top of bottom plate (28).

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