Mesh belt type isothermal normalizing production line

Abstract

The utility model discloses a mesh belt type isothermal normalizing production line which comprises a mesh belt type heating furnace, a rapid cooling furnace is arranged on one side of the mesh belt type heating furnace, a mesh belt type isothermal furnace is arranged on one side of the rapid cooling furnace, a feeding table is arranged on the other side of the mesh belt type heating furnace, and a discharging table is arranged on one side of the mesh belt type isothermal furnace. And a bottom frame is arranged at the bottom ends of the mesh belt type heating furnace and the mesh belt type isothermal furnace. Through the arrangement of the heat exchange coil pipe, the water inlet, the water outlet and the gas guide plate, heat exchange is conducted on waste heat of flue gas discharged through the discharge flue through the snakelike heat exchange coil pipe during use, a heat exchange medium circulates in the heat exchange coil pipe through the water inlet and the water outlet, meanwhile, the flue gas can circulate in the heat exchange box in a snakelike mode through the gas guide plate, and the heat exchange efficiency is improved. And the heat exchange coil pipe can fully absorb waste heat of the flue gas, so that the temperature of the flue gas discharged by the production line is effectively and further reduced, the energy utilization rate is further increased, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of gear production, in particular to a mesh belt type isothermal normalizing production line. Background Art

[0002] An isothermal normalizing production line is an industrial machine specifically designed for the isothermal normalizing treatment of forgings such as gears and disk gears. Moreover, the isothermal normalizing production line is not limited to the treatment of forgings such as gears and disk gears. It can also be customized according to specific requirements to meet the heat treatment requirements of different materials;

[0003] For example, an isothermal normalizing production line for super large main and driven gears disclosed in the utility model with the authorization announcement number CN220079138U includes a normalizing heating furnace, a falling buffer device, a rapid cooling chamber, and an isothermal furnace arranged in sequence and butt-jointed. A transmission device is arranged in the normalizing heating furnace, and the transmission device adopts a structure of a roller type synchronous transmission to drive the mesh belt; the normalizing heating furnace adopts a gas control system to control the gas heating of the direct injection burner; the isothermal furnace adopts a gas control system to control the gas heating of the direct injection burner. The isothermal normalizing production line for super large main and driven gears can effectively transport relatively heavy main and driven gears, expanding the applicable range of isothermal normalizing treatment; the isothermal normalizing production line for super large main and driven gears has accurate temperature control, which helps to reduce energy consumption and improve product quality at the same time. However, in the process of application of this technical solution, the utilization rate of the waste heat in the flue gas is not high, and the discharged flue gas still contains heat, and there is a technical problem that the waste heat of the flue gas generated during the operation of the production line cannot be fully reused. Content of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a mesh belt type isothermal normalizing production line, which can solve the technical problems that the utilization rate of the waste heat in the flue gas is not high, the discharged flue gas still contains heat, and the waste heat of the flue gas generated during the operation of the production line cannot be fully reused.

[0005] To solve the above technical problems, the present utility model provides the following technical solutions: a mesh belt type isothermal normalizing production line, including a mesh belt type heating furnace. One side of the mesh belt type heating furnace is provided with a rapid cooling furnace, and one side of the rapid cooling furnace is provided with a mesh belt type isothermal furnace. The other side of the mesh belt type heating furnace is provided with a loading table, and one side of the mesh belt type isothermal furnace is provided with an unloading table. The bottom ends of the mesh belt type heating furnace and the mesh belt type isothermal furnace are provided with a chassis. The inner side walls of the mesh belt type heating furnace and the mesh belt type isothermal furnace are provided with furnace linings. One side at the bottom front end of the rapid cooling furnace is provided with an electric control box, and the front end of the rapid cooling furnace is provided with an industrial control screen. The top ends of the mesh belt type heating furnace and the mesh belt type isothermal furnace are provided with a heat exchange box. A smoke exhaust duct is provided at the middle position between the top ends inside the mesh belt type heating furnace and the mesh belt type isothermal furnace and the bottom end of the heat exchange box. The inside of the heat exchange box is provided with heat exchange coils. Air guide plates are provided on both sides at both ends between the inner side walls of the heat exchange box. One side at the top of the heat exchange box is provided with a water inlet, and the other side at the top of the heat exchange box is provided with a water outlet. Purification and discharge components are provided on both sides at the top of the heat exchange box.

[0006] As a preferred technical solution of the present utility model, the heat exchange coils are in a serpentine shape. One end of the heat exchange coils is fixedly connected and communicated with the bottom end of the water inlet, and the other end of the heat exchange coils is fixedly connected and communicated with the bottom end of the water outlet.

[0007] As a preferred technical solution of the present utility model, the air guide plates are arranged at equal intervals on both sides at both ends between the inner side walls of the heat exchange box, and the air guide plates are fitted with the corners of the heat exchange coils.

[0008] As a preferred technical solution of the present utility model, the purification and discharge components include a purification cylinder. The purification cylinder is penetrated through both sides at the top of the heat exchange box. A protective net is provided at the top between the inner side walls of the purification cylinder. A negative pressure fan is provided at a position close to the top between the inner side walls of the purification cylinder. An installation sleeve is provided at the bottom between the inner side walls of the purification cylinder. A high-efficiency filter element is provided at the bottom between the inner side walls of the installation sleeve. An activated carbon filter element is provided at the top between the inner side walls of the installation sleeve. Cleaning ports are provided on both sides at the bottom rear end of the heat exchange box.

[0009] As a preferred technical solution of the present utility model, the purification cylinders are symmetrically arranged at the top of the heat exchange box, and the cleaning ports are symmetrically arranged at the rear end of the heat exchange box.

[0010] As a preferred technical solution of the present utility model, the purification cylinder is communicated with the inside of the heat exchange box, and the high-efficiency filter element and the activated carbon filter element are parallel to each other.

[0011] Compared with the prior art, the beneficial effects that the present utility model can achieve are:

[0012] 1. By providing a heat exchange coil, a water inlet, a water outlet and a gas guide plate, during use, the heat exchange coil in a serpentine shape exchanges heat with the waste heat of the flue gas discharged through the smoke exhaust duct. The heat exchange medium circulates in the heat exchange coil through the water inlet and the water outlet. At the same time, the gas guide plate enables the flue gas to flow in a serpentine shape in the heat exchange box, allowing the heat exchange coil to fully absorb the waste heat of the flue gas, thereby effectively further reducing the temperature of the flue gas discharged by the production line and further improving the energy utilization rate, with strong feasibility;

[0013] 2. By providing purification and discharge components on both sides of the top of the heat exchange box, during use, the negative pressure fan discharges the flue gas with absorbed waste heat through the purification cylinder. At the same time, the high-efficiency filter element and the activated carbon filter element provided inside the installation sleeve perform double purification treatment on the flue gas to prevent the direct discharge of the flue gas from polluting the working environment of the production line and affecting the health of the staff. And the cleaning port facilitates the cleaning of the soot blocked by filtration in the heat exchange box, thus achieving the effect of purifying and then discharging the flue gas generated during the operation of the isothermal normalizing production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 is a front structural schematic diagram of the present utility model;

[0016] Figure 3 is a front partial sectional structural schematic diagram of the heat exchange box of the present utility model;

[0017] Figure 4 is of the present utility model Figure 3 enlarged structural schematic diagram at A in.

[0018] Wherein: 1. Mesh belt heating furnace; 2. Heat exchange box; 3. Purification cylinder; 4. Quick cooling furnace; 5. Mesh belt isothermal furnace; 6. Discharge table; 7. Underframe; 8. Electric control box; 9. Industrial control screen; 10. Loading table; 11. Water inlet; 12. Water outlet; 13. Furnace lining; 14. Smoke exhaust duct; 15. Heat exchange coil; 16. Cleaning port; 17. Negative pressure fan; 18. Gas guide plate; 19. Protection net; 20. High-efficiency filter element; 21. Installation sleeve; 22. Activated carbon filter element. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments. However, the following embodiments are only the preferred embodiments of the present utility model and not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without making creative efforts all fall within the protection scope of the present utility model. The experimental methods in the following embodiments are all conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments can all be obtained from commercial channels unless otherwise specified. Embodiment

[0020] Please refer to Figures 1-4As shown in the figure, the utility model provides a mesh belt type isothermal normalizing production line, which includes a mesh belt type heating furnace 1. A rapid cooling furnace 4 is arranged on one side of the mesh belt type heating furnace 1, and a mesh belt type isothermal furnace 5 is arranged on one side of the rapid cooling furnace 4. A loading table 10 is arranged on the other side of the mesh belt type heating furnace 1, and an unloading table 6 is arranged on one side of the mesh belt type isothermal furnace 5. The bottom ends of the mesh belt type heating furnace 1 and the mesh belt type isothermal furnace 5 are provided with a chassis 7. The inner side walls of the mesh belt type heating furnace 1 and the mesh belt type isothermal furnace 5 are provided with furnace linings 13. The forgings to be heat-treated are loaded through the loading table 10, and the forgings are conveyed into the mesh belt type heating furnace 1 by using a conveyor mesh belt for heating. The heated forgings are conveyed into the rapid cooling furnace 4 for cooling. Subsequently, the cooled forgings are conveyed into the mesh belt type isothermal furnace 5 by the mesh belt to control the temperature of the forgings to be maintained at a certain level. Finally, the heat-treated forgings are conveyed out through the unloading table 6. One side of the bottom of the front end of the rapid cooling furnace 4 is provided with an electric control box 8, and the electric control box 8 is used to control the circuit of the production line. An industrial control screen 9 is arranged at the front end of the rapid cooling furnace 4, and the industrial control screen 9 is used to control the operation of the production line and display the operation status. A heat exchange box 2 is arranged at the top of the mesh belt type heating furnace 1 and the mesh belt type isothermal furnace 5. A smoke exhaust duct 14 is arranged at the middle position between the top ends inside the mesh belt type heating furnace 1 and the mesh belt type isothermal furnace 5 and the bottom end of the heat exchange box 2. The inside of the heat exchange box 2 is provided with a serpentine heat exchange coil 15. The heat of the flue gas discharged through the smoke exhaust duct 14 is exchanged by the serpentine heat exchange coil 15. Guide plates 18 are arranged on both sides at both ends between the inner side walls of the heat exchange box 2. The guide plates 18 are arranged at equal intervals on both sides at both ends between the inner side walls of the heat exchange box 2, and the guide plates 18 are fitted with the corners of the heat exchange coil 15. The guide plates 18 are used to make the flue gas flow in a serpentine shape in the heat exchange box 2, so that the heat exchange coil 15 can fully absorb the heat of the flue gas. One side of the top of the heat exchange box 2 is provided with a water inlet 11, one end of the heat exchange coil 15 is fixedly connected and communicated with the bottom end of the water inlet 11. The other side of the top of the heat exchange box 2 is provided with a water outlet 12, and the other end of the heat exchange coil 15 is fixedly connected and communicated with the bottom end of the water outlet 12. The heat exchange medium flows in the heat exchange coil 15 through the water inlet 11 and the water outlet 12, so as to effectively further reduce the temperature of the flue gas discharged by the production line and further improve the energy utilization rate, and the feasibility is strong;

[0021] During use, the heat of the flue gas discharged through the smoke exhaust duct 14 is exchanged by the serpentine heat exchange coil 15, the heat exchange medium flows in the heat exchange coil 15 through the water inlet 11 and the water outlet 12, and at the same time, the guide plates 18 are used to make the flue gas flow in a serpentine shape in the heat exchange box 2, so that the heat exchange coil 15 can fully absorb the heat of the flue gas;

[0022] As a further implementation manner of this embodiment, such as Figures 1-4As shown in the figure, purification and discharge components are provided on both sides of the top of the heat exchange box 2. The purification and discharge components include purification cylinders 3. The purification cylinders 3 are arranged through both sides of the top of the heat exchange box 2. The purification cylinders 3 are symmetrically arranged on the top of the heat exchange box 2. The purification cylinders 3 are communicated with the inside of the heat exchange box 2. A protective net 19 is arranged at the top between the inner side walls of the purification cylinder 3. A negative pressure fan 17 is arranged at a position close to the top between the inner side walls of the purification cylinder 3. The flue gas with the waste heat absorbed is discharged through the purification cylinder 3 by the negative pressure fan 17. At the same time, the protective net 19 is used to prevent foreign objects from falling into the purification cylinder 3 and affecting the safe operation of the negative pressure fan 17. An installation sleeve 21 is arranged at the bottom between the inner side walls of the purification cylinder 3. A high-efficiency filter element 20 is arranged at the bottom between the inner side walls of the installation sleeve 21. An activated carbon filter element 22 is arranged at the top between the inner side walls of the installation sleeve 21. The high-efficiency filter element 20 and the activated carbon filter element 22 are parallel to each other. When discharging the flue gas, the flue gas is subjected to double purification treatment by the high-efficiency filter element 20 and the activated carbon filter element 22 arranged on the inner side of the installation sleeve 21 to avoid directly discharging the flue gas and polluting the working environment of the production line and affecting the health of the staff. Cleaning ports 16 are arranged on both sides of the bottom of the rear end of the heat exchange box 2. The cleaning ports 16 are symmetrically arranged at the rear end of the heat exchange box 2. Through the cleaning ports 16, it is convenient to clean the soot filtered and blocked in the heat exchange box 2, thus achieving the effect of purifying and then discharging the flue gas generated during the operation of the isothermal normalizing production line;

[0023] During use, the flue gas with the waste heat absorbed is discharged through the purification cylinder 3 by the negative pressure fan 17. At the same time, the flue gas is subjected to double purification treatment by the high-efficiency filter element 20 and the activated carbon filter element 22 arranged on the inner side of the installation sleeve 21 to avoid directly discharging the flue gas and polluting the environment. And through the cleaning ports 16, it is convenient to clean the soot filtered and blocked in the heat exchange box 2;

[0024] Specific working principle:

[0025] When using a mesh belt type isothermal normalizing production line, forgings to be heat treated are loaded through the loading table 10, and the forgings are conveyed to the mesh belt type heating furnace 1 for heating by using the conveyor mesh belt. The heated forgings are conveyed to the rapid cooling furnace 4 for cooling. Subsequently, the cooled forgings are conveyed to the mesh belt type isothermal furnace 5 through the mesh belt to heat and control the temperature of the forgings to remain at a certain level. When heat treating the forgings, the waste heat of the flue gas discharged through the flue gas duct 14 is exchanged heat by the serpentine heat exchange coil 15, and the heat exchange medium flows through the heat exchange coil 15 through the water inlet 11 and the water outlet 12. At the same time, the flue gas can flow in a serpentine manner in the heat exchange box 2 through the air guide plate 18, so that the heat exchange coil 15 can fully absorb the waste heat of the flue gas. At the same time, the flue gas with waste heat absorbed is discharged through the purification cylinder 3 by the negative pressure fan 17. At the same time, the flue gas is subjected to double purification treatment by the high-efficiency filter element 20 and the activated carbon filter element 22 arranged inside the mounting sleeve 21 to avoid direct discharge of the flue gas and polluting the environment. And the dust filtered and blocked in the heat exchange box 2 can be easily cleaned through the cleaning port 16. Finally, the heat treated forgings are conveyed out through the discharging table 6, and the operation of the production line is controlled and the operation state is displayed through the industrial control screen 9.

[0026] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A mesh belt isothermal normalizing production line, comprising a mesh belt heating furnace (1), characterized in that: A rapid cooling furnace (4) is arranged on one side of the mesh belt heating furnace (1), a mesh belt isothermal furnace (5) is arranged on one side of the rapid cooling furnace (4), a loading platform (10) is arranged on the other side of the mesh belt heating furnace (1), a discharging platform (6) is arranged on one side of the mesh belt isothermal furnace (5), a bottom frame (7) is arranged at the bottom ends of the mesh belt heating furnace (1) and the mesh belt isothermal furnace (5), a furnace lining (13) is arranged on the inner side walls of the mesh belt heating furnace (1) and the mesh belt isothermal furnace (5), an electric control box (8) is arranged on one side of the bottom of the front end of the rapid cooling furnace (4), and an industrial control system (10) is arranged at the front end of the rapid cooling furnace (4). A screen (9) is provided, a heat exchange box (2) is provided at the top of the mesh belt heating furnace (1) and the mesh belt isothermal furnace (5), a smoke exhaust duct (14) is provided at a middle position between the top of the mesh belt heating furnace (1) and the mesh belt isothermal furnace (5) and the bottom of the heat exchange box (2), a heat exchange coil (15) is provided inside the heat exchange box (2), air guide plates (18) are provided on both sides of the two ends between the inner side walls of the heat exchange box (2), a water inlet (11) is provided on one side of the top of the heat exchange box (2), a water outlet (12) is provided on the other side of the top of the heat exchange box (2), and purification emission components are provided on both sides of the top of the heat exchange box (2).

2. The mesh belt isothermal normalizing production line according to claim 1 is characterized in that: The heat exchange coil (15) is serpentine-shaped, one end of the heat exchange coil (15) is fixedly connected and communicated with the bottom end of the water inlet (11), and the other end of the heat exchange coil (15) is fixedly connected and communicated with the bottom end of the water outlet (12).

3. The mesh belt isothermal normalizing production line according to claim 1 is characterized in that: The air guide plates (18) are arranged at equal intervals on both sides of the two ends of the inner side walls of the heat exchange box (2), and the air guide plates (18) fit in with the bends of the heat exchange coils (15).

4. The mesh belt isothermal normalizing production line according to claim 1 is characterized in that: The purification and discharge assembly comprises a purification cylinder (3), the purification cylinder (3) being arranged on both sides of the top of the heat exchange box (2), a protective net (19) being arranged at the top between the inner side walls of the purification cylinder (3), a negative pressure fan (17) being arranged at a position close to the top between the inner side walls of the purification cylinder (3), a mounting sleeve (21) being arranged at the bottom between the inner side walls of the purification cylinder (3), a high-efficiency filter element (20) being arranged at the bottom between the inner side walls of the mounting sleeve (21), an activated carbon filter element (22) being arranged at the top between the inner side walls of the mounting sleeve (21), and cleaning ports (16) being arranged at both sides of the bottom of the rear end of the heat exchange box (2).

5. The mesh belt isothermal normalizing production line according to claim 4 is characterized in that: The purification cylinder (3) is symmetrically arranged at the top of the heat exchange box (2), and the cleaning port (16) is symmetrically arranged at the rear end of the heat exchange box (2).

6. The mesh belt isothermal normalizing production line according to claim 4 is characterized in that: The purification cartridge (3) is in communication with the interior of the heat exchange box (2), and the high-efficiency filter element (20) and the activated carbon filter element (22) are parallel to each other.

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