Novel efficient energy-saving sintering furnace body with combustion chamber

Abstract

The top end and the bottom end of a sintering chamber are each provided with an exhaust port, the exhaust ports are connected with an exhaust structure, the left end and the right end of the sintering chamber are each fixedly provided with two combustion chambers, and each combustion chamber is provided with a burner; a fuel gas pipeline and a gas inlet assembly are further installed outside the sintering chamber, the fuel gas pipeline and the gas inlet assembly are connected with the gas inlet end of the burner through a self-adaptive adjusting structure, the diaphragm is used for sensing the fuel gas pressure change in the fuel gas pipeline, the shielding piece is driven to move so as to adjust the air inlet amount, and when the fuel gas pressure rises, the shielding piece is driven to move so as to adjust the air inlet amount. The diaphragm is jacked to drive the driving rod to move upwards, so that the overlap ratio of an upper air opening of the grating and a lower air opening of the shielding piece is increased, the air input amount is synchronously increased, otherwise, air input is reduced, dynamic equal-ratio adjustment of the air-fuel ratio is achieved, the optimal combustion ratio is maintained all the time, gas waste or insufficient combustion is avoided, the combustion efficiency is greatly improved, and gas consumption is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sintering, in particular to a novel furnace body with a combustion chamber for efficient and energy-saving sintering. BACKGROUND

[0002] In the field of sintering technology, the furnace body as the core equipment directly affects the quality of sintered products and production economy in terms of combustion efficiency, energy utilization rate and temperature control accuracy. The gas pipeline and air inlet system of the traditional furnace body are designed with fixed proportioning, which cannot adaptively adjust the air input according to the dynamic changes of gas pressure and flow, resulting in unbalanced mixing ratio of gas and air. When the gas supply pressure fluctuates, insufficient combustion (too low air-fuel ratio) or energy waste (too high air-fuel ratio) may occur, which not only reduces the combustion efficiency. At the same time, the gas and air are difficult to fully turbulent mixing before entering the burner, and the uneven mixed gas will cause ignition difficulty, flame flickering or extinguishing, and the gas in the burner cannot be completely burned, which will locally produce carbon and CO, resulting in uneven local temperature in the combustion process. Due to unstable combustion efficiency and uneven heat distribution, the heat input of the ignition area of the sintering belt is difficult to accurately control, which cannot meet the strict requirements of high-precision sintering process on temperature field, limiting its application in high-end material sintering scenarios. SUMMARY

[0003] The present application proposes a novel furnace body with a combustion chamber for efficient and energy-saving sintering, which solves the above problems.

[0004] In order to achieve the above purpose, the present application adopts the following technical scheme: A novel furnace body with a combustion chamber for efficient and energy-saving sintering, comprising a sintering chamber, a hatch is installed on the front side of the sintering chamber, and a plurality of uniformly distributed heating wires are installed on the end of the sintering chamber, the heating wires extend into the interior of the sintering chamber, the top end and the bottom end of the sintering chamber are provided with exhaust ports, the exhaust ports are connected with exhaust structures, the left and right ends of the sintering chamber are fixed with two combustion chambers, the sintering chamber comprises a furnace shell and an inner cavity, the furnace shell is welded into shape by Q steel plate, and the whole is in the form of a rectangular sealed structure, the inner cavity is formed by piling refractory bricks inside the furnace shell, and the furnace shell and the inner cavity are filled with thermal insulation materials, the thermal insulation materials are ceramic fiber plates, ceramic fiber blankets, etc. according to needs, the structure of each combustion chamber is the same as that of the sintering chamber, a burner is installed on each combustion chamber, the burner is a natural gas burner with a single rated power of 30-80kW, which is uniformly distributed on the two side walls of the combustion chamber and arranged symmetrically, the number of burners is matched according to the volume of the combustion chamber, and a gas pipeline and an air inlet assembly are further installed outside the sintering chamber, the gas pipeline and the air inlet assembly are connected with the air inlet end of the burner through a self-adaptive adjusting structure.

[0005] Preferably, the exhaust structure includes an exhaust fan fixed by a support, an air inlet of the exhaust fan is provided with an exhaust main pipe through a flange, a plurality of exhaust branch pipes are installed on the exhaust main pipe and are connected with exhaust ports on the sintering chamber through flanges, and the exhaust structure is used for timely exhausting flue gas and sintering waste gas generated by combustion and maintaining air pressure stability in the combustion chamber and the sintering chamber.

[0006] Preferably, the gas pipeline includes one gas pipe I, two gas pipes II are fixed on the gas pipe I, the two gas pipes II are respectively connected with the combustion chambers on the two sides of the sintering chamber, two gas pipes III are welded on the gas pipes II near the combustion chambers, the gas pipe I is sequentially provided with a low-pressure pressure switch, a high-pressure pressure switch, a low-pressure pressure gauge, a gas pressure reducing valve, a high-pressure pressure gauge, a main pipe gas electromagnetic valve, a manual valve ball and a thermal gas mass flow meter from left to right.

[0007] Preferably, the air inlet assembly includes an air inlet fan fixed by a support, an air outlet of the air inlet fan is provided with a total gas pipe, two branch gas pipes are installed on the total gas pipe and are respectively connected with the combustion chambers on the two sides of the sintering chamber, and the branch gas pipes are provided with air inlet pipes used for being connected with the self-adaptive adjusting structure, and the air inlet assembly is used for introducing external air, adjusting the air-fuel ratio with natural gas and improving the combustion efficiency and reducing the gas consumption.

[0008] Preferably, the self-adaptive adjusting structure includes a Venturi tube installed on an air inlet end of the burner, the Venturi tube includes a converging section, a throat and a diverging section, a plurality of spiral guide vanes are arranged on inner walls of the converging section and the diverging section, the spiral guide vanes are arranged in an annular array, gas and air will be turbulent mixed after entering the Venturi tube, so that the gas and the air are uniformly mixed, a connecting pipe is installed on the air inlet end of the Venturi tube, a sealing part is welded on an upper end of the connecting pipe, a driving member is slidably installed in the sealing part, and the gas pipe III is connected with the air inlet end of the connecting pipe through a flange. A communication pipe is welded on an outer ring of the Venturi tube, the communication pipe is in communication with the converging section, an air inlet cover is installed on an upper portion of the communication pipe through a flange, a grille is fixed in the air inlet cover, a shielding member is slidably installed on a lower portion of the grille, a connecting member is fixed on the shielding member, and the connecting member is slidably connected with the driving member.

[0009] Preferably, the sealing part is in communication with an inner cavity of the connecting pipe, the driving member includes a driving rod which is slidably inserted into the sealing part, a diaphragm is fixed on a bottom end of the driving rod, an outer wall of the diaphragm is fixed with an inner wall of the sealing part, the diaphragm is upwardly lifted when gas pressure in the connecting pipe increases, a guide sleeve is welded on an upper portion of the sealing part, a piston is fixed on a surface of an outer ring of the driving rod, and the piston is slidably and sealingly connected with an inner wall of the guide sleeve.

[0010] Preferably, the grid comprises a rectangular fixed frame fixed inside the air inlet cover, a plurality of equally spaced partition plates are fixed inside the fixed frame, and the space between two adjacent partition plates forms an upper air inlet; The shielding piece comprises a movable frame slidingly installed below the fixed frame, a plurality of equally spaced sealing plates are fixed on the inner wall of the movable frame, the space between two adjacent sealing plates forms a lower air inlet, a guide plate is arranged below the movable frame, a guide groove is formed in the guide block, a guide block is slidingly inserted into the guide groove, the guide block is fixed to the inner wall of the air inlet cover through screws, and the movable frame can slide along the guide block. The size of the upper air inlet and the lower air inlet is the same, and the width of the sealing plate is not less than the width of the partition plate and the upper air inlet, so that the sealing plate can shield the upper air inlet, and the airflow cannot flow.

[0011] Preferably, the driving piece comprises a connecting rod fixed to the movable frame, the connecting rod passes through the air inlet cover and is outside the air inlet cover, the connecting rod and the air inlet cover are sealingly and slidingly connected through a piston, and a driving plate is fixed to the end of the connecting rod away from the air inlet cover. The distance between the upper end of the moving inclined groove and the air inlet cover is less than the distance between the lower end of the moving inclined groove and the air inlet cover.

[0012] The beneficial effects of the present application are as follows: 1. The self-adaptive adjusting structure is provided, the diaphragm senses the change of the gas pressure in the gas pipeline, the shielding piece is driven to move to adjust the air intake, when the gas pressure rises, the diaphragm lifts up and drives the driving rod to move upwards, the coincidence degree of the upper air inlet of the grid and the lower air inlet of the shielding piece increases, and the air input increases synchronously; otherwise, the air input decreases, the dynamic equal ratio adjustment of the air-fuel ratio is realized, the optimal combustion ratio is maintained at all times, the waste of gas or insufficient combustion is avoided, the combustion efficiency is greatly improved, and the gas consumption is reduced; 2. The Venturi tube in the self-adaptive adjusting structure is designed in combination with the spiral guide vane to form a high-efficiency mixing channel, after the gas and the air enter the Venturi tube, strong turbulence is generated through the changes of the flow channels of the contraction section, the throat and the diffusion section, the spiral guide vane distributed in the annular array further enhances the disturbance, the mixture of the gas and the air is more uniform, the uniform premixed gas ensures that the flame shape of the burner is controllable, the length and the temperature distribution are uniform, the heat input of the ignition area of the sintering belt is accurately predictable, the quality consistency of the sintered product is effectively improved, the combustion efficiency is stable, the flame shape is controllable, the heat distribution is uniform, the temperature field inside the sintering chamber can be accurately controlled, different materials and different process requirements can be met in sintering operation, especially for high-end material sintering with high temperature precision requirement, the application scene of the furnace body is widened, and the practicality and market competitiveness of the equipment are improved. 3, sintering chamber and combustion chamber are all used "Q235 steel plate furnace shell + refractory brick inner cavity + ceramic fiber insulation material" composite structure, the insulation material between the furnace shell and the inner cavity can significantly block the heat conduction loss, reduce the energy leakage in the furnace; at the same time, the top and bottom double exhaust port cooperate with the exhaust main pipe, branch pipe and exhaust fan exhaust structure, which can quickly exhaust the combustion flue gas and sintering waste gas, maintain the stable pressure in the furnace, avoid the accumulation of waste gas affecting the combustion efficiency, further reduce the energy loss, realize high efficiency and energy saving. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a top view of a novel furnace body of high efficiency and energy saving sintering with combustion chamber provided by the present application; Figure 2 It is a front view of a novel furnace body of high efficiency and energy saving sintering with combustion chamber provided by the present application; Figure 3 It is a side view of a novel furnace body of high efficiency and energy saving sintering with combustion chamber provided by the present application; Figure 4 It is Figure 1 the top view of sintering chamber and combustion chamber Figure 5 It is Figure 1 the structure diagram of exhaust structure; Figure 6 It is Figure 1 the structure diagram of gas pipeline; Figure 7 It is Figure 1 the structure diagram of air inlet assembly; Figure 8 It is Figure 3 the structure diagram of self-adaptive adjusting structure; Figure 9 It is Figure 8 the local enlarged view in it; Figure 10 It is Figure 9 the structure diagram of grid and shielding piece in it.

[0014] Mark in the figure: 1, sintering chamber; 11, heating wire; 12, hatch; 2, combustion chamber; 3, burner; 4, exhaust structure; 41, exhaust main pipe; 42, exhaust fan; 43, exhaust branch pipe; 5, gas pipeline; 51, gas pipe one; 52, gas pipe two; 53, gas pipe three; 6, air inlet assembly; 61, air inlet fan; 62, total gas pipe; 63, gas branch pipe; 631, air inlet pipe; 7. Adaptive adjustment structure; 71. Venturi tube; 711. Contraction section; 712. Throat; 713. Diffusion section; 714. Spiral guide vane; 72. Connecting pipe; 721. Sealing part; 73. Connecting pipe; 74. Drive rod; 741. Diaphragm; 742. Drive roller; 75. Inlet hood; 751. Grille; 752. Fixed frame; 753. Partition; 754. Upper air inlet; 76. Shielding component; 761. Moving frame; 762. Sealing plate; 763. Lower air inlet; 764. Connecting rod; 765. Drive plate; 766. Moving chute. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0016] Reference Figure 1 - Figure 10 A novel high-efficiency and energy-saving sintering furnace with combustion chambers includes a sintering chamber 1. A hatch 12 is installed on the front side of the sintering chamber 1, and multiple evenly distributed heating wires 11 are installed at one end of the sintering chamber 1, extending into the interior of the sintering chamber 1. Exhaust ports are provided at both the top and bottom of the sintering chamber 1, connected to an exhaust structure 4. Two combustion chambers 2 are fixed at both the left and right ends of the sintering chamber 1. The sintering chamber 1 includes a furnace shell and an inner cavity. The furnace shell is welded from Q235 steel plates, forming a rectangular sealed structure. The inner cavity is formed by stacking refractory bricks inside the furnace shell. The space between the shell and the inner cavity is filled with thermal insulation material, which may be ceramic fiber board, ceramic fiber blanket, etc., as needed. The structure of the combustion chamber 2 is the same as that of the sintering chamber 1. Each combustion chamber 2 is equipped with a burner 3. The burner 3 is a natural gas burner with a single rated power of 30-80kW. They are evenly distributed on both sides of the combustion chamber 2 in a symmetrical arrangement. The number of burners 3 is matched according to the volume of the combustion chamber 2. The outside of the sintering chamber 1 is also equipped with a gas pipeline 5 and an air intake assembly 6. The gas pipeline 5 and the air intake assembly 6 are connected to the air intake end of the burner 3 through an adaptive adjustment structure 7.

[0017] Reference Figure 1 , Figure 5 The exhaust structure 4 includes an exhaust fan 42 fixed by a bracket. The air inlet of the exhaust fan 42 is fitted with an exhaust main pipe 41 via a flange. Multiple exhaust branch pipes 43 are installed on the exhaust main pipe 41. The multiple exhaust branch pipes 43 are respectively connected to the exhaust port on the sintering chamber 1 via flanges. The exhaust structure 4 is used to discharge the flue gas and sintering exhaust gas generated by combustion in a timely manner, and maintain the stable air pressure in the combustion chamber 2 and the sintering chamber 1.

[0018] Reference Figure 6The gas pipeline 5 includes a gas pipe 1 51, on which two gas pipes 2 52 are fixed. The two gas pipes 2 52 lead to the combustion chambers 2 on both sides of the sintering chamber 1 respectively. Two gas pipes 3 53 are welded to the gas pipes 2 52 near the combustion chamber 2. From left to right, the gas pipe 1 51 is equipped with a low-pressure switch, a high-pressure switch, a low-pressure gauge, a gas pressure reducing valve, a high-pressure gauge, a main gas solenoid valve, a manual valve ball, and a thermal gas mass flow meter. Gas pipeline 5 is equipped with multiple safety control components, including a low-pressure switch, a high-pressure switch, and a gas pressure reducing valve, to ensure the safety and stability of the gas supply.

[0019] Reference Figure 7 The intake assembly 6 includes an intake fan 61 fixed by a bracket. A main air pipe 62 is installed on the air outlet of the intake fan 61. Two branch air pipes 63 are installed on the main air pipe 62, which lead to the combustion chambers 2 on both sides of the sintering chamber 1 respectively. An intake pipe 631 for connecting to the adaptive adjustment structure 7 is installed on the branch air pipe 63. The intake assembly 6 is used to introduce outside air and adjust it to a certain air-fuel ratio with natural gas to improve combustion efficiency and reduce gas consumption. The air intake assembly 6 ensures the continuity of air supply through the graded delivery of air via the air intake fan 61, the main air pipe 62, and the branch air pipe 63. The components are fixedly connected by flanges, welding, etc., with good sealing performance, a stable overall structure, low failure rate during operation, and long service life.

[0020] Reference Figure 8 - Figure 10 The adaptive adjustment structure 7 includes a venturi tube 71 installed at the air inlet end of the burner 3. The venturi tube 71 includes a converging section 711, a throat 712, and a diffuser section 713. Multiple spiral guide vanes 714 are provided on the inner walls of the converging section 711 and the diffuser section 713. The multiple spiral guide vanes 714 are arranged in a ring array. After the gas and air enter the interior of the venturi tube 71, they will be mixed in a turbulent manner, so that the gas and air are mixed evenly. A connecting pipe 72 is installed at the air inlet end of the venturi tube 71. A sealing part 721 is welded to the upper end of the connecting pipe 72. A driving component is slidably installed inside the sealing part 721. The gas pipe 3 53 is connected to the air inlet end of the connecting pipe 72 through a flange. A connecting pipe 73 is welded to the outer ring of the venturi tube 71. The connecting pipe 73 is connected to the contraction section 711. An air intake hood 75 is installed above the connecting pipe 73 via a flange. A grille 751 is fixed inside the air intake hood 75. A shielding member 76 is slidably installed below the grille 751. A connecting member is fixed on the shielding member 76. The connecting member is slidably connected to the drive member.

[0021] Reference Figure 8The sealing part 721 communicates with the inner cavity of the connecting pipe 72. The driving component includes a driving rod 74 that slides up and down into the sealing part 721. A diaphragm 741 is fixed at the bottom end of the driving rod 74. The outer wall of the diaphragm 741 is fixed to the inner wall of the sealing part 721. When the gas pressure of the gas inside the connecting pipe 72 increases, the diaphragm 741 will be pushed upward. A guide sleeve is welded above the sealing part 721. A piston is fixed on the outer ring surface of the driving rod 74. The piston slides up and down with the inner wall of the guide sleeve and is sealed.

[0022] Reference Figure 10 The grille 751 includes a rectangular fixed frame 752, which is fixed inside the air intake hood 75. Multiple equally spaced partitions 753 are fixed inside the fixed frame 752, and the space between two adjacent partitions 753 forms an upper air inlet 754. The shielding component 76 includes a movable frame 761 that is slidably installed below the fixed frame 752. Multiple equally spaced sealing plates 762 are fixed on the inner wall of the movable frame 761. The space between two adjacent sealing plates 762 forms a lower air port 763. A guide plate is provided below the movable frame 761. A guide groove is opened on the guide block. A guide block is slidably inserted into the guide groove. The guide block is fixed to the inner wall of the air intake cover 75 by screws. The movable frame 761 can slide along the guide block. The upper air inlet 754 and the lower air inlet 763 are the same size, and the width of the sealing plate 762 is not less than the width of the partition 753 and the upper air inlet 754. This allows the sealing plate 762 to block the upper air inlet 754, preventing airflow.

[0023] Reference Figure 8 , Figure 9 The driving component includes a connecting rod 764 fixed to the movable frame 761. The connecting rod 764 passes through the air intake shroud 75 and is located outside the air intake shroud 75. The connecting rod 764 and the air intake shroud 75 are sealed and slidably connected by a piston. A driving plate 765 is fixed to the end of the connecting rod 764 away from the air intake shroud 75. An inclined moving groove 766 is opened on the driving plate 765. A driving roller 742 is rotatably mounted on the upper end of the driving rod 74 through a shaft pin. The driving roller 742 is rolled into the moving groove 766. The distance between the upper end of the moving inclined groove 766 and the air inlet shroud 75 is less than the distance between the lower end of the moving inclined groove 766 and the air inlet shroud 75. When the gas pressure of the gas inside the connecting pipe 72 increases, the diaphragm 741 will be lifted upward, thereby causing the drive rod 74 and the drive roller 742 to move upward. At this time, the drive plate 765 will be pushed to move away from the air inlet shroud 75, so that the upper air port 754 and the lower air port 763 gradually tend to overlap, and the overlapping part between the two gradually increases, increasing the flow rate of external air entering, so that the air-fuel ratio is maintained within a certain range, providing the burner 3 with premixed gas with a precise air-fuel ratio and uniform mixing, making the flame shape of the burner 3 controllable, and the length, shape, and temperature of the premixed flame more uniform and easier to predict, and able to accurately control the heat input of the ignition zone of the sintering zone.

[0024] Working principle: In the initial state, the diaphragm 741 and the drive rod 74 are located at the bottom under their own gravity. At this time, the distance between the drive plate 765 and the air inlet shroud 75 is the closest, and the upper air port 754 and the lower air port 763 are misaligned, that is, the sealing plate 762 and the upper air port 754 are blocked.

[0025] In actual use, the gas pipe 51 in the gas pipeline 5 is connected to the external gas pipeline, and gas is added to the burners 3 of multiple combustion chambers 2 through the gas pipeline 5. At the same time, the power supply of the intake fan 61 is turned on, and the intake fan 61 will continuously supply air to the branch pipe 63 and the intake pipe 631 through the main gas pipe 62. After gas is introduced into the connecting pipe 72 through the gas pipe 3 53 in the gas pipeline 5, the gas pressure inside the connecting pipe 72 will rise. When the gas pressure inside the connecting pipe 72 increases, the diaphragm 741 will be lifted upward, thereby causing the drive rod 74 and the drive roller 742 to move upward. Since the distance between the upper end of the moving sloping groove 766 and the air inlet hood 75 is less than the distance between the lower end of the moving sloping groove 766 and the air inlet hood 75, the drive plate 765 will move away from the air inlet hood 75, thereby causing the upper air port 754 and the lower air port 763 to gradually overlap, and the overlapping part between the two gradually increases, increasing the flow rate of external air entering. When the flow rate and pressure of the gas inside the connecting pipe 72 are greater, the height to which the drive rod 74 and drive roller 742 rise will be greater, thereby gradually increasing the overlap between the upper gas port 754 and the lower gas port 763. This results in a greater air flow rate entering the connecting pipe 73 and venturi tube 71 through the upper gas port 754 and the lower gas port 763, thus maintaining the air-fuel ratio within a certain range. This provides the burner 3 with premixed gas that has a precise air-fuel ratio and is evenly mixed, making the flame shape of the burner 3 controllable. The length, shape, and temperature of the premixed flame are more uniform and easier to predict, enabling precise control of the heat input in the ignition zone of the sintering zone. Because the Venturi tube 71 has a contraction section 711, a throat 712, and a diffuser section 713 inside, the gas and air entering it will undergo turbulence, causing them to mix together. With the help of multiple evenly distributed spiral guide vanes 714 set on the inner walls of the contraction section 711 and the diffuser section 713, it can further enhance the turbulent mixing, thereby making the gas and air mix more evenly. It can directly sense the pressure change of the gas pipeline 5 and use the Venturi effect to automatically and proportionally adjust the amount of air drawn in, thereby continuously outputting a premixed gas with a constant air-fuel ratio and uniform mixing to the burner 3 to ensure the stability of the ignition flame and the combustion efficiency.

[0026] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying 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. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A novel furnace body with a high-efficiency and energy-saving sintering zone and combustion chamber, characterized in that, The sintering chamber (1) includes a sintering chamber (1) with a door (12) installed on the front side. Multiple heating wires (11) are evenly distributed at the end of the sintering chamber (1) and the heating wires (11) extend into the interior of the sintering chamber (1). The top and bottom ends of the sintering chamber (1) are provided with exhaust ports, which are connected to the exhaust structure (4). Two combustion chambers (2) are fixed at both ends of the sintering chamber (1). Each combustion chamber (2) is equipped with a burner (3). A gas pipeline (5) and an air intake assembly (6) are also installed outside the sintering chamber (1). The gas pipeline (5) and the air intake assembly (6) are connected to the air intake end of the burner (3) through an adaptive adjustment structure (7).

2. The novel furnace body with a high-efficiency and energy-saving sintering zone and combustion chamber according to claim 1, characterized in that, The exhaust structure (4) includes an exhaust fan (42) fixed by a bracket. An exhaust main pipe (41) is installed at the air inlet of the exhaust fan (42) through a flange. Multiple exhaust branch pipes (43) are installed on the exhaust main pipe (41). The multiple exhaust branch pipes (43) are respectively connected to the exhaust port on the sintering chamber (1) through flanges.

3. The novel furnace body with a high-efficiency and energy-saving sintering zone and combustion chamber according to claim 1, characterized in that, The gas pipeline (5) includes a gas pipe (51), and two gas pipes (52) are fixed on the gas pipe (51). The two gas pipes (52) are respectively connected to the combustion chambers (2) on both sides of the sintering chamber (1). Two gas pipes (53) are welded on the gas pipes (52) near the combustion chamber (2).

4. The novel furnace body with a high-efficiency and energy-saving sintering zone and combustion chamber according to claim 3, characterized in that, The intake assembly (6) includes an intake fan (61) fixed by a bracket. A main air pipe (62) is installed on the air outlet of the intake fan (61). Two branch air pipes (63) are installed on the main air pipe (62) respectively leading to the combustion chambers (2) on both sides of the sintering chamber (1). An intake pipe (631) for connecting to the adaptive adjustment structure (7) is installed on the branch air pipe (63).

5. A novel furnace body with a high-efficiency and energy-saving sintering zone and combustion chamber according to claim 4, characterized in that, The adaptive adjustment structure (7) includes a venturi tube (71) installed at the air inlet end of the burner (3). The venturi tube (71) includes a converging section (711), a throat (712), and a diffuser section (713). The inner walls of the converging section (711) and the diffuser section (713) are provided with multiple spiral guide vanes (714), which are arranged in a ring array. A connecting pipe (72) is installed at the air inlet end of the venturi tube (71). A sealing part (721) is welded to the upper end of the connecting pipe (72). A driving component is slidably installed inside the sealing part (721). The venturi tube (71) has a connecting pipe (73) welded to its outer ring. The connecting pipe (73) is connected to the contraction section (711). An air intake hood (75) is installed above the connecting pipe (73) via a flange. A grille (751) is fixed inside the air intake hood (75). A shielding component (76) is slidably installed below the grille (751) to the left and right. A connecting component is fixed on the shielding component (76). The connecting component is slidably connected to the driving component.

6. A novel furnace body with a high-efficiency and energy-saving sintering zone and combustion chamber according to claim 5, characterized in that, The interior of the sealing part (721) is connected to the inner cavity of the connecting pipe (72). The driving component includes a driving rod (74) that slides up and down on the sealing part (721). A diaphragm (741) is fixed at the bottom end of the driving rod (74). The outer wall of the diaphragm (741) is fixed to the inner wall of the sealing part (721). A guide sleeve is welded above the sealing part (721). A piston is fixed on the outer ring surface of the driving rod (74). The piston slides up and down with the inner wall of the guide sleeve and is sealed.

7. A novel furnace body with a high-efficiency and energy-saving sintering zone and combustion chamber according to claim 6, characterized in that, The grille (751) includes a rectangular fixed frame (752), and a plurality of equally spaced partitions (753) are fixed inside the fixed frame (752). The space between two adjacent partitions (753) forms an upper air inlet (754). The shielding component (76) includes a movable frame (761) that is slidably installed below the fixed frame (752). The inner wall of the movable frame (761) is fixed with a plurality of equally spaced sealing plates (762), and the space between two adjacent sealing plates (762) forms a lower air port (763).

8. A novel furnace body with a high-efficiency and energy-saving sintering zone and combustion chamber according to claim 7, characterized in that, The driving component includes a connecting rod (764) fixed to the movable frame (761). The connecting rod (764) passes through the air intake hood (75) and is located outside the air intake hood (75). A driving plate (765) is fixed to one end of the connecting rod (764) away from the air intake hood (75). An inclined moving groove (766) is provided on the driving plate (765). A driving roller (742) is rotatably mounted on the upper end of the driving rod (74) through a shaft pin. The driving roller (742) is rolled into the moving groove (766).

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