Energy-saving stove with easy-to-clean feature
By designing a separate grate, air blowing device, and ash return device, the problems of inconvenient cleaning and low thermal efficiency of traditional stoves are solved, achieving convenient cleaning and energy-saving effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 东营开发区泓煊金属制品销售中心(个体工商户)
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional stoves are prone to problems such as fuel waste, low thermal efficiency, and ash buildup and blockage during cleaning, making it difficult to achieve convenient cleaning and energy-saving effects.
An easy-to-clean energy-saving stove was designed, which adopts a separate grate plate, a blower, an overflow device, and an ash return device, which are used for convenient cleaning of ash, preheating gas, collecting overflow liquid, and preventing soot accumulation, respectively.
It enables convenient ash removal, complete fuel combustion, reduced heat loss, lower fuel consumption and manual cleaning frequency, and improves thermal efficiency.
Smart Images
Figure CN224551586U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stoves, and in particular to an easy-to-clean energy-saving stove. Background Technology
[0002] In daily life and production, stoves are indispensable heating equipment. Traditional stoves use solid fuels, such as wood, straw, coal, and charcoal, as energy sources. They release heat through direct combustion and can be used for cooking, stir-frying, boiling water, and heating. In order to make the fuel burn more completely, air is blown into the stove.
[0003] Traditional pull-out grate stoves have a fixed ash leakage area, which can easily cause unburned materials to fall during cleaning, resulting in fuel waste; ambient temperature air entering the high-temperature furnace will lower the furnace temperature, requiring more fuel to maintain combustion; liquid overflowing from the stove can easily contaminate the furnace surface, which is difficult to clean and will absorb heat from the furnace, reducing thermal efficiency; soot in the chimney can easily accumulate in the smoke outlet trough, requiring frequent manual cleaning. Utility Model Content
[0004] The purpose of this utility model is to provide an easy-to-clean energy-saving stove that achieves convenient ash removal, complete fuel combustion, effective treatment of overflow liquid, and prevention of flue blockage.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] An easy-to-clean energy-saving stove includes a stove body, which is a cylindrical structure that is wider at the top and narrower at the bottom. A grate plate is installed inside the stove body, and the grate plate is supported by support blocks fixed to the inner wall of the stove body. The upper part of the grate plate forms the furnace chamber, and the lower part forms the ash storage chamber. A material trough is welded to the upper front side of the stove body, and the material trough communicates with the furnace chamber. A smoke outlet trough is welded to the upper rear side of the stove body, and the smoke outlet trough communicates with the furnace chamber. A chimney connector is welded to the top of the outer end of the smoke outlet trough. An ash outlet trough is welded to the lower front side of the stove body, and the ash outlet trough communicates with the ash storage chamber. A blowing device is installed inside the stove body, an overflow device is installed on the outer side of the stove body, and an ash return device is installed between the smoke outlet trough and the ash storage chamber.
[0007] Preferably, the furnace grate includes a lower furnace grate, a slot, a central shaft, an upper furnace grate, an ash trough, and a rotating plate. The lower furnace grate has multiple slots at its bottom, which engage with corresponding support blocks. A central shaft is fixed at the center of the lower furnace grate. The upper furnace grate is stacked on top of the lower furnace grate and rotates along the central shaft. The upper furnace grate has the same structure as the lower furnace grate and has the same elongated ash trough running through it. The furnace body has an opening slot at the same horizontal plane as the upper furnace grate. A rotating plate is fixed to the outer circumference of the upper furnace grate and slides and rotates within the opening slot.
[0008] Preferably, the furnace body outside the furnace chamber is divided into inner and outer layers, with a cavity in between. The blowing device includes an air inlet, a heating pipe, a connecting pipe, a circular pipe, and an air outlet. The air inlet is located outside the furnace body and is connected to a semi-circular heating pipe. The heating pipe is fixed inside the cavity, and a vertical connecting pipe is integrally formed at the end of the heating pipe. The bottom end of the connecting pipe is connected to the circular pipe. The circular pipe is located below the grate plate in the ash storage chamber, and multiple air outlets are arranged around its circumference.
[0009] Preferably, the overflow device includes a receiving trough, a drain pipe, a liquid storage box, a liquid outlet pipe, a cap, and an overflow pipe. The receiving trough is semi-circular and welded to the outer periphery of the top of the furnace body. The receiving trough is connected to a downward-facing drain pipe. The bottom of the drain pipe is connected to the top surface of the liquid storage box. The liquid storage box is fixed to the outer wall of the furnace body. The bottom surface of the liquid storage box is connected to a liquid outlet pipe, and the bottom of the liquid outlet pipe is threadedly connected to a cap.
[0010] Preferably, the top of the side wall of the liquid storage box is connected to a downward overflow pipe.
[0011] Preferably, the ash return device includes an ash storage pipe, a chute, an ash receiving plate, and an ash pouring pipe. The ash storage pipe is vertical and connected to the bottom of the smoke outlet chute. A horizontal chute is opened on the outer wall of the ash storage pipe. The ash receiving plate is inserted into the ash storage pipe along the chute, and the cross-section of the cavity of the ash storage pipe at the insertion end of the ash receiving plate is the same. The bottom end of the ash storage pipe is connected to the ash storage cavity by an ash pouring pipe.
[0012] Preferably, a sealing plate is slidably inserted into the middle cross section of the smoke outlet trough.
[0013] Preferably, three support rods are welded at equal angles to the outer circumference of the lower part of the furnace body, and casters are installed at the bottom of the support rods.
[0014] This utility model has the following beneficial effects:
[0015] 1. The grate is divided into an upper grate and a lower grate. By rotating the upper grate, the ash leakage gap can be adjusted to clean the ash in the furnace into the ash storage cavity, making it less likely for unburned materials to fall out, and making it very convenient to use.
[0016] 2. The blowing device can preheat the gas through the heat conduction of the furnace, reduce the temperature difference between the blowing gas and the furnace, facilitate the maintenance of the high temperature of the furnace, enable the combustibles to burn quickly, and save fuel.
[0017] 3. The overflow device collects the liquid overflowing from the stove through the receiving trough and collects it through the liquid storage box, which prevents the liquid from flowing directly onto the surface of the stove and causing pollution. It isolates the liquid from the stove body, avoids heat loss, and saves fuel in a roundabout way.
[0018] 4. The flue gas generated by combustion enters the chimney through the flue outlet trough at the rear of the furnace body. The soot in the chimney is collected by the ash storage pipe and flows into the ash storage chamber from the ash discharge pipe, which avoids the accumulation and blockage of soot in the flue outlet trough and reduces the frequency of manual cleaning of the chimney. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;
[0020] Figure 2 This is a schematic diagram showing the location of the overflow device of this utility model;
[0021] Figure 3 This is a longitudinal sectional view of the furnace body of this utility model;
[0022] Figure 4 This is a schematic diagram of the external structure of the furnace grate plate of this utility model;
[0023] Figure 5 This is a cross-sectional view of the furnace body of this utility model;
[0024] Figure 6 This is a schematic diagram of the external structure of the blower device of this utility model;
[0025] Figure 7 This is a longitudinal sectional view of the furnace body and overflow device of this utility model;
[0026] Figure 8 This is a side view of the present invention;
[0027] Icons: 1. Furnace body; 11. Furnace grate; 111. Lower furnace grate; 112. Slot; 113. Central shaft; 114. Upper furnace grate; 115. Ash trough; 116. Rotating plate; 12. Support block; 13. Furnace chamber; 14. Ash storage cavity; 15. Opening slot; 16. Cavity; 17. Support rod; 18. Casters; 2. Material trough; 3. Smoke outlet trough; 31. Sealing plate; 4. Chimney 5. Connector; 6. Ash discharge trough; 7. Blowing device; 8. Air inlet; 9. Heating tube; 10. Connecting pipe; 11. Circular pipe; 12. Air outlet; 13. Overflow device; 24. Receiving trough; 35. Leakage pipe; 46. Liquid storage box; 57. Liquid discharge pipe; 68. Cover; 79. Overflow pipe; 80. Ash return device; 81. Ash storage pipe; 82. Slide chute; 83. Ash receiving plate; 84. Ash pouring pipe. Detailed Implementation
[0028] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0030] like Figure 1-8 As shown in this embodiment, an easy-to-clean energy-saving stove includes a stove body 1, which is a cylindrical structure that is wider at the top and narrower at the bottom. A grate plate 11 is installed inside the stove body 1, and the grate plate 11 is supported by support blocks 12 fixed to the inner wall of the stove body 1. The upper part of the grate plate 11 forms a furnace chamber 13 for placing fuel for combustion, and the lower part forms an ash collection chamber 14 for collecting ash. A material trough 2 is welded to the upper front side of the stove body 1 for adding fuel, and the material trough 2 communicates with the furnace chamber 13. A smoke exhaust trough 3 is welded to the upper rear side of the stove body 1 for exhausting smoke. The flue trough 3 is connected to the furnace chamber 13. A chimney connector 4 is welded to the top of the outer end of the flue trough 3 for connecting the chimney. An ash discharge trough 5 is welded to the lower front side of the furnace body 1 for collecting and cleaning the fallen ash. Both the material trough 2 and the ash discharge trough 5 are covered with covers to maintain the temperature inside the furnace body 1. The ash discharge trough 5 is connected to the ash storage chamber 14. A blower 6 is installed inside the furnace body 1 to save energy and aid combustion. An overflow device 7 is installed on the outside of the furnace body 1 to handle overflow liquid. An ash return device 8 is installed between the flue trough 3 and the ash storage chamber 14 to prevent the flue pipe from being blocked.
[0031] Specifically, the grate plate 11 can clean the ash in the furnace chamber 13 into the ash storage chamber 14 by changing the ash leakage gap, making it less likely for unburned materials to fall out, which is very convenient to use; the blowing device 6 can preheat the gas through the heat conduction of the furnace and blow air onto the fuel, reducing the temperature difference between the blowing gas and the furnace chamber 13, which is conducive to maintaining the high temperature of the furnace chamber 13, so that the combustibles can burn quickly and save fuel; the overflow device 7 can collect the liquid overflowing from the heating furnace, preventing the liquid from contaminating the surface of the furnace body 1, avoiding cleaning trouble, and also preventing the liquid from absorbing the heat of the furnace body 1, reducing thermal efficiency, thus saving fuel indirectly; the ash return device 8 can collect the soot falling from the chimney and drop the collected soot into the ash storage chamber 14 along the pipe, avoiding the phenomenon of ash accumulation and blockage in the flue trough 3, which is difficult to clean.
[0032] The furnace grate 11 includes a lower furnace grate 111, a slot 112, a central shaft 113, an upper furnace grate 114, an ash trough 115, and a rotating plate 116. The lower furnace grate 111 has multiple slots 112 at its bottom, which engage with the support block 12. The support block 12 supports the slots 112 and prevents them from rotating. The lower furnace grate 111 has a central shaft 113 fixed at its center. The upper furnace grate 114 is stacked on top of the lower furnace grate 111 and rotates along the central shaft 113. The upper furnace grate 114 has the same structure as the lower furnace grate 111 and has the same elongated ash trough 115 running through it. The furnace body 1 has an opening slot 15 at the same horizontal plane as the upper furnace grate 114. A rotating plate 116 is fixed around the circumference of the upper furnace grate 114 and slides and rotates within the opening slot 15.
[0033] Specifically, during normal combustion, the ash-leaking troughs 115 of the upper grate 114 and the lower grate 111 are in a vertically intersecting state. The overlapping ash-leaking troughs 115 form square holes, allowing only fine ash to leak through, preventing unburned material from falling. By rotating the rotating plate 116, the fuel and ash on the upper grate 114 can be rotated, increasing the overlap area of the upper and lower ash-leaking troughs 115. This makes it easier to clean the ash accumulated on the upper grate 114 into the ash storage chamber 14. After cleaning, the plate rotates in the opposite direction to restore the intersecting state. The included angle of the opening troughs 15 is most suitable in the range of 30-50° to avoid waste caused by unburned material falling due to excessive overlap of the upper and lower ash-leaking troughs 115. Compared with traditional pull-out grate, the ash-leaking area of the ash-leaking troughs 115 is easier to control, making operation very convenient.
[0034] The furnace body 1 outside the furnace chamber 13 has a double-layer structure with an inner and outer layer, forming a cavity 16 in the middle. The cavity 16 is not a sealed space and is ventilated to the outside through small holes. The blowing device 6 includes an air inlet 61, a heating pipe 62, a connecting pipe 63, a circular pipe 64, and an air outlet 65. The air inlet 61 is located outside the furnace body 1 and is connected to a semi-circular heating pipe 62. The heating pipe 62 is fixed inside the cavity 16 and welded tightly to the inner wall of the furnace body 1. A vertical connecting pipe 63 is integrally formed at the end of the heating pipe 62. The bottom end of the connecting pipe 63 is connected to the circular pipe 64. The circular pipe 64 is located below the grate plate 11 in the ash storage chamber 14. The circular pipe 64 has multiple air outlets 65 around its circumference, which are inclined upwards and face the middle area of the grate plate 11.
[0035] Specifically, the air inlet 61 supplies air through an external fan, and the heating tube 62 preheats the air using the high temperature of the furnace 13, so that the air is preheated before being blown onto the fuel, reducing the temperature difference between the blowing air and the furnace 13, so as to better maintain the high temperature of the furnace 13 and avoid consuming more fuel to raise the temperature, thus achieving energy saving. The circumferentially distributed air outlets 65 can blow the air evenly downwards to the fuel, which makes the fuel burn more completely than the traditional single-direction blowing method.
[0036] The overflow device 7 includes a receiving trough 71, a drain pipe 72, a liquid storage box 73, a liquid outlet pipe 74, a cover 75, and an overflow pipe 76. The receiving trough 71 is semi-circular and welded to the outer periphery of the top of the furnace body 1, with its opening facing upwards and encircling the furnace body 1. The receiving trough 71 is connected to a downward-facing drain pipe 72. The bottom of the drain pipe 72 is connected to the top surface of the liquid storage box 73. The back of the liquid storage box 73 is bolted to the outer wall of the furnace body 1 for storing liquid. The bottom surface of the liquid storage box 73 is connected to a liquid outlet pipe 74, and the bottom of the liquid outlet pipe 74 is threadedly connected to a cover 75.
[0037] Specifically, the top of the furnace body 1 is used to support the stove. The receiving trough 71 is located outside the circumference of the furnace body 1 and can collect the liquid overflowing from the stove, preventing the liquid from contaminating the surface of the furnace body 1, avoiding cleaning trouble, preventing the liquid from absorbing the heat of the furnace body, reducing thermal efficiency, and indirectly saving fuel. The liquid flows into the liquid storage box 73 through the drain pipe 72, preventing the receiving trough 71 from being too full. After the liquid storage box 73 has collected a lot of liquid, the liquid can be discharged by unscrewing the cap 75, which is convenient for continued collection.
[0038] The liquid storage box 73 has a downward overflow pipe 76 connected to the top of its side wall.
[0039] Specifically, if the liquid in the receiving tank 71 is too full and no one is watching, the overflow pipe 76 can drain the liquid that overflows from the receiving tank 71, preventing the liquid from overflowing from the receiving tank 71. The bottom of the overflow pipe 76 is connected to the ground to prevent splashing due to excessive height.
[0040] The ash return device 8 includes an ash storage pipe 81, a chute 82, an ash receiving plate 83, and an ash pouring pipe 84. The ash storage pipe 81 is vertical and connected below the smoke outlet chute 3 to collect the smoke ash falling from the chimney. The outer wall of the ash storage pipe 81 has a horizontal chute 82. The ash receiving plate 83 is inserted into the ash storage pipe 81 along the chute 82, and the cross-section of the cavity of the ash storage pipe 81 at the insertion end of the ash receiving plate 83 is the same. The bottom end of the ash storage pipe 81 is connected to the ash storage cavity 14 by an inclined ash pouring pipe 84 to guide the smoke ash into the ash storage cavity 14.
[0041] Specifically, the ash receiving plate 83 is used to catch furnace ash and also to block the air flow between the flue trough 3 and the ash storage chamber 14, thus preventing gas from circulating. During combustion, the ash receiving plate 83 is inserted into the ash storage pipe 81 to collect the flue ash. After use, the ash receiving plate 83 is pulled out, and the flue ash flows into the ash storage chamber 14 through the ash pouring pipe 84 and is discharged from the ash discharge trough 5 together with the furnace ash, reducing the amount of manual cleaning work.
[0042] A sealing plate 31 is inserted into the middle cross-section of the smoke outlet 3. The sealing plate 31 provides flow space over the smoke outlet 3, and its cross-sectional size can be freely adjusted by sliding to change the airflow, ensuring that the flame does not spread outwards and that oxygen supply is sufficient. This promotes more complete combustion of fuel, reduces heat loss, and thus saves energy.
[0043] Three support rods 17 are welded at equal angles to the outer circumference of the lower part of the furnace body 1, and casters 18 are installed at the bottom of the support rods 17. The casters 18 facilitate the movement of the furnace body 1, saving the physical effort of manual handling.
[0044] The working principle of this utility model is as follows: solid fuel is poured into the furnace chamber 13 through the material trough 2 on the front side of the furnace body 1, and the fuel accumulates on the grate plate 11. After the fuel is ignited, a high-temperature zone is formed in the furnace chamber 13. The fuel is discharged through the ash leakage trough 115 of the grate plate 11, and the unburned large pieces of fuel are intercepted in the furnace chamber 13 and continue to burn.
[0045] An external fan delivers ambient temperature air into the heating tube 62 through the air inlet 61. The high temperature of the furnace is conducted to the heating tube 62 through the inner wall of the furnace, preheating the air inside the tube. The preheated air enters the annular tube 64 through the connecting pipe 63, and is then blown towards the bottom of the fuel through the evenly distributed air outlets 65 around the circumference of the annular tube.
[0046] When a large amount of ash accumulates in the furnace 13, the rotating plate 116 drives the upper grate 114 to rotate, increasing the overlap area of the ash-leaking grooves 115 of the upper and lower grate plates, allowing the ash to fall smoothly into the ash storage chamber 14. After cleaning, the rotating plate 116 is rotated in the opposite direction to restore the crossed state of the ash-leaking grooves, and combustion continues.
[0047] The soot in the chimney falls to the ash collection pipe 81 due to gravity and is caught by the ash receiving plate 83 inserted into the ash collection pipe 81. After the stove is used, the ash receiving plate 83 is pulled out, and the soot in the ash collection pipe 81 flows into the ash collection chamber 14 through the ash discharge pipe 84, mixes with the furnace ash falling from the grate plate 11, and is finally discharged through the ash discharge trough 5.
[0048] Overflowing liquids, such as soup or water, are collected in the receiving trough 71 on the outer periphery of the top of the furnace body 1. The liquid in the receiving trough 71 flows into the liquid storage box 73 through the drain pipe 72. The liquid outlet pipe 74 on the bottom of the liquid storage box 73 can be opened periodically to drain the liquid. If the liquid storage box 73 is not emptied in time after it is full, the liquid will flow to the ground through the overflow pipe 76 at the top of the side wall, preventing it from overflowing into the furnace body or the surrounding environment.
[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An easy-to-clean energy-saving stove, comprising a stove body (1), wherein the stove body (1) is a cylindrical structure that is thicker at the top and thinner at the bottom, characterized in that, The furnace body (1) is provided with a grate plate (11). The grate plate (11) is supported by a support block (12) fixed to the inner wall of the furnace body (1). The upper part of the grate plate (11) is set as the furnace chamber (13), and the lower part is set as the ash storage chamber (14). A material trough (2) is welded to the upper front side of the furnace body (1), and the material trough (2) is connected to the furnace chamber (13). A smoke outlet trough (3) is welded to the upper rear side of the furnace body (1), and the smoke outlet trough (3) is connected to the furnace chamber (13). A chimney connector (4) is welded to the top of the outer end of the smoke outlet trough (3). An ash outlet trough (5) is welded to the lower front side of the furnace body (1), and the ash outlet trough (5) is connected to the ash storage chamber (14). A blowing device (6) is installed inside the furnace body (1). An overflow device (7) is installed on the outside of the furnace body (1). An ash return device (8) is installed between the smoke outlet trough (3) and the ash storage chamber (14).
2. The easy-to-clean energy-saving stove according to claim 1, characterized in that, The furnace grate plate (11) includes a lower furnace grate plate (111), a slot (112), a central shaft (113), an upper furnace grate plate (114), an ash trough (115), and a rotating plate (116). The lower furnace grate plate (111) has multiple slots (112) at its bottom, and the slots (112) engage with the support blocks (12). The lower furnace grate plate (111) has a central shaft (113) fixed at its center. The upper furnace grate plate (114) is stacked on top of the lower furnace grate plate (111) and rotates along the central shaft (113). The upper furnace grate plate (114) has the same structure as the lower furnace grate plate (111) and has the same elongated ash trough (115) running through it. The furnace body (1) has an opening slot (15) at the same level as the upper furnace grate (114). A rotating plate (116) is fixed on the outer circumference of the upper furnace grate (114), and the rotating plate (116) slides and rotates along the opening groove (15).
3. The easy-to-clean energy-saving stove according to claim 1, characterized in that, The furnace body (1) outside the furnace chamber (13) is divided into inner and outer layers, with a cavity (16) in the middle between the inner and outer furnace bodies (1). The blowing device (6) includes an air inlet (61), a heating tube (62), a connecting tube (63), a circular tube (64), and an air outlet (65). The air inlet (61) is located outside the furnace body (1). The air inlet (61) is connected to a semi-circular heating tube (62). The heating tube (62) is fixed in the cavity (16). The end of the heating tube (62) is integrally formed with a vertical connecting tube (63). The bottom end of the connecting tube (63) is connected to the circular tube (64). The circular tube (64) is located below the grate plate (11) in the ash storage cavity (14). The circular tube (64) has multiple air outlets (65) arranged around its circumference.
4. The easy-to-clean energy-saving stove according to claim 1, characterized in that, The overflow device (7) includes a receiving trough (71), a drain pipe (72), a liquid storage box (73), a liquid outlet pipe (74), a cover (75), and an overflow pipe (76). The receiving trough (71) is a semi-circular ring welded to the outer periphery of the top of the furnace body (1). The receiving trough (71) is connected to a downward drain pipe (72). The bottom of the drain pipe (72) is connected to the top surface of the liquid storage box (73). The liquid storage box (73) is fixed to the outer wall of the furnace body (1). The bottom surface of the liquid storage box (73) is connected to a liquid outlet pipe (74). The bottom of the liquid outlet pipe (74) is threadedly connected to a cover (75).
5. The easy-to-clean energy-saving stove according to claim 4, characterized in that, The liquid storage box (73) has a downward overflow pipe (76) connected to the top of its side wall.
6. The easy-to-clean energy-saving stove according to claim 1, characterized in that, The ash return device (8) includes an ash storage pipe (81), a chute (82), an ash receiving plate (83), and an ash pouring pipe (84). The ash storage pipe (81) is vertical and connected to the bottom of the smoke outlet chute (3). The outer wall of the ash storage pipe (81) has a horizontal chute (82). The ash receiving plate (83) is inserted into the ash storage pipe (81) along the chute (82), and the cross-section of the cavity of the ash storage pipe (81) at the insertion end of the ash receiving plate (83) is the same. The bottom end of the ash storage pipe (81) is connected to the ash storage cavity (14) by an ash pouring pipe (84).
7. The easy-to-clean energy-saving stove according to claim 1, characterized in that, A sealing plate (31) is slidably inserted into the middle cross section of the smoke outlet groove (3).
8. The easy-to-clean energy-saving stove according to claim 1, characterized in that, Three support rods (17) are welded at equal angles on the outer circumference of the lower part of the furnace body (1), and universal wheels (18) are installed at the bottom of the support rods (17).