Energy recovery system for furnace discharging roller way of heating furnace

Abstract

The invention provides a heating furnace discharging roller way energy recovery system. The heating furnace discharging roller way energy recovery system comprises a vibration energy recovery device and a heat recovery device. The vibration energy recovery device comprises a supporting part, a transmission part and a recovery motor, the supporting part supports a roller of the furnace discharging roller way and can move up and down along with up-down vibration of the roller, the transmission part is connected with the supporting part and an input shaft of the recovery motor, and the transmission part can convert up-down movement of the supporting part into rotation of the input shaft of the recovery motor. The vibration energy of the furnace discharging table is recycled, so that the requirement of the furnace discharging table for external energy is reduced, and the operation cost of the furnace discharging table is reduced. The heat recovery device comprises a recovery pipeline arranged near the furnace discharging roller way, and during working, a recovery medium is introduced into the recovery pipeline to recover heat of a transported piece on the furnace discharging roller way, so that energy waste and damage to electrical elements near the furnace discharging roller way due to the fact that the heat is directly diffused into the surrounding environment are avoided.

Description

Technical Field

[0001] The present application relates to the technical field of steel rolling production line, in particular to an energy recovery system for a heating furnace roller conveyor. Background Art

[0002] The outlet of the heating furnace of the steel rolling production line is equipped with a furnace discharge roller and a drive motor that drives the furnace discharge roller. The drive motor relies entirely on external energy to operate, resulting in high operating costs. Moreover, since the temperature is high near the heating furnace, once the drive motor is damaged, production must be stopped for inspection or replacement, which affects the production schedule.

[0003] In addition, the transportation speed of the furnace roller is slow, and the rolled products on the furnace roller carry a lot of heat. During the transportation process, the large amount of heat carried by the rolled products directly diffuses into the surrounding environment, causing energy waste, and also causing damage to the electrical components near the furnace roller (including the drive motor that drives the furnace roller, etc.).

[0004] In view of this, how to avoid some or all of the above disadvantages is a technical problem that needs to be solved by technical personnel in this field. Summary of the invention

[0005] In order to solve the above-mentioned technical problems, the present application provides an energy recovery system for a heating furnace discharge roller, wherein the energy recovery system includes a vibration energy recovery device, and the vibration energy recovery device includes a support part, a transmission part and a recovery motor. The support part supports the rollers of the discharge roller and can move up and down with the up and down vibration of the rollers. The transmission part connects the support part and the input shaft of the recovery motor, and the transmission part can convert the up and down movement of the support part into the rotation of the input shaft of the recovery motor.

[0006] An implementation manner of an energy recovery system for a heating furnace discharge roller table, wherein the support portion is an elastic support portion.

[0007] An embodiment of an energy recovery system for a heating furnace discharge roller table, wherein the elastic support portion includes a support sleeve, a support shaft, a spring and a switching structure for connecting the transmission portion, the support sleeve is sleeved outside the bearing of the roller end of the discharge roller table, the support shaft is vertically arranged, the upper end of the support shaft and the radial insertion hole of the support sleeve are plugged together so as to be movable up and down, the spring is sleeved outside the support shaft, when the roller of the discharge roller table vibrates up and down, the elastic support portion moves up and down as a whole, and the support sleeve moves up and down relative to the support shaft to cause the spring to store energy and compress or release energy and extend.

[0008] An implementation manner of an energy recovery system for a heating furnace discharge roller table, the transmission portion comprises a first transmission rod, a second transmission rod, a driving transmission gear and a driven transmission gear, the first transmission rod and the transfer structure of the support portion are hinged to form a first hinge point, the first transmission rod and the second transmission rod are hinged to form a second hinge point, the second transmission rod is fixedly connected to the center of the driving transmission gear, the driven transmission gear is meshed with the driving transmission gear, and when the rollers of the discharge roller table vibrate up and down, the first transmission rod rotates around the first hinge point, driving the second transmission rod and the driving transmission gear to rotate around the center of the driving transmission gear, thereby driving the driven transmission gear to rotate, and the driven transmission gear drives the input shaft of the recovery motor to rotate.

[0009] An embodiment of an energy recovery system for a heating furnace discharge roller table, wherein both ends of each roller of the discharge roller table are supported by a supporting part respectively, each supporting part is connected to two recovery motors through two transmission parts respectively, and the two transmission parts and two recovery motors at the same end of each roller are arranged symmetrically at 180° with respect to the vertical center line of the support shaft of the supporting part at this end.

[0010] An embodiment of the energy recovery system of the heating furnace roller table, the transmission part also includes a ratchet pawl assembly, and the driven transmission gear is connected to the input shaft of the recovery motor through the ratchet pawl assembly, so that the driven transmission gear can drive the input shaft of the recovery motor to rotate when it rotates forward, and cannot drive the input shaft of the recovery motor to rotate when it rotates reversely.

[0011] An embodiment of an energy recovery system for a heating furnace discharge roller, the energy recovery system includes a heat recovery device, the heat recovery device includes a recovery pipe arranged near the discharge roller, when in operation, a recovery medium is passed through the recovery pipe to recover the heat of the transported parts on the discharge roller.

[0012] In one implementation of the energy recovery system for the heating furnace discharge roller, the recovery pipeline is a cover-shaped structure as a whole, and the cover is arranged on both sides and above the discharge roller.

[0013] An implementation manner of an energy recovery system for a heating furnace roller table, the heat recovery device includes a flow measurement component and a flow regulation component arranged on the recovery pipeline.

[0014] An embodiment of an energy recovery system for a heating furnace roller table, wherein the heat recovery device includes a controller and a weight sensor, wherein the weight sensor is used to measure the weight of the transported parts on the heating furnace roller table, and the controller is communicatively connected with the flow measuring component, the flow regulating component and the weight sensor to intelligently adjust the opening of the flow regulating component according to the measurement data of the flow measuring component and the weight sensor.

[0015] The heating furnace discharge roller energy recovery system provided in the present application recovers the vibration energy of the discharge roller by setting a vibration energy recovery device, thereby reducing the discharge roller's demand for external energy and thus reducing the operating cost of the discharge roller.

[0016] Furthermore, the energy recovery system for the heating furnace roller conveyor provided in the present application recovers the heat of the transported parts on the roller conveyor by setting up a heat recovery device, thereby avoiding the direct diffusion of heat into the surrounding environment to cause energy waste and damage to electrical components near the roller conveyor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of an embodiment of a heating furnace discharge roller energy recovery system provided in the present application;

[0018] Figure 2 for Figure 1 Schematic diagram of a single roller and the corresponding vibration energy recovery device and drive motor;

[0019] Figure 3 for Figure 2 A magnified view of part A;

[0020] Figure 4 for Figure 2 An enlarged view of part B from another perspective;

[0021] Figure 5 for Figure 1 Schematic diagram of the heat recovery device;

[0022] Figure 6 A partial perspective view of the recovery pipeline.

[0023] The following are the descriptions of the reference numerals:

[0024] 10 vibration energy recovery device, 101 support sleeve, 102 support shaft, 103 switching structure, 104 spring, 105 first transmission rod, 106 second transmission rod, 107 active transmission gear, 108 driven transmission gear, 109 gear seat, 1010 recovery motor;

[0025] 20 heat recovery device, 201 recovery pipeline, 2011 cone, 202 inlet flow measurement component, 203 outlet flow measurement component, 204 flow regulation component.

[0026] 30 roller, 301 body, 302 rim, 303 connecting section;

[0027] 40 bearings;

[0028] 50 driving motor. DETAILED DESCRIPTION

[0029] The present application provides an energy recovery system for a heating furnace roller table. In order to enable those skilled in the art to better understand the technical solution of the present application, the technical solution of the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] like Figure 1 As shown, the furnace roller table includes a plurality of rollers 30, the axial direction of the rollers 30 is horizontal, and the rollers 30 are arranged in sequence along the longitudinal direction. One end of the roller 30 is connected to the driving motor 50 through a coupling, and the driving motor 50 is used to drive the roller 30 to rotate. The roller 30 includes a roller body 301 and a connector 303 protruding from the end faces of the roller body 301 along the axial direction. Radial flanges can be provided on the outer periphery of both ends of the roller body 301, and the radial flanges are used to guide the transported parts on the roller 30. Bearings 40 are sleeved on the outer periphery of the connector 303 to ensure smooth rotation of the roller 30. When the furnace roller table carries the transported parts and is running, the roller 30 will vibrate up and down under the action of the vertical load, thereby generating vibration energy.

[0031] like Figure 1 As shown, the heating furnace discharge roller energy recovery system provided in the present application includes a vibration energy recovery device 10, which is used to recover the vibration energy of the discharge roller.

[0032] like Figure 2-Figure 4 As shown, the vibration energy recovery device 10 includes: a supporting part, a transmission part and a recovery motor 1010.

[0033] The support part supports the roller 30 of the furnace roller table and can move up and down with the up and down vibration of the roller 30 .

[0034] The transmission part connects the support part and the input shaft of the recovery motor 1010, and the transmission part can convert the up and down movement of the support part into the rotation of the input shaft of the recovery motor 1010. The rotation of the input shaft of the recovery motor 1010 drives the internal magnetic coil of the recovery motor 1010 to rotate, thereby generating current, thereby realizing the recovery of vibration energy.

[0035] The recovery motor 1010 that recovers the vibration energy of the roller 30 can assist the drive motor 50 to drive the roller 30 to rotate. Compared with the drive motor 50 that is solely powered by an external energy source to drive the roller 30 to rotate, this can reduce the demand for external energy of the furnace roller, thereby reducing the operating cost of the furnace roller.

[0036] In one embodiment, the support portion is an elastic support portion, so that the elasticity of the support portion can be used to buffer the up and down vibration of the roller 30, thereby avoiding the problem of rigid impact on the support portion during the up and down vibration of the roller 30, resulting in easy damage and abnormal noise.

[0037] In one embodiment, Figure 3 or Figure 4 As shown, the specific structure of the support part is: including a support sleeve 101, a support shaft 102, a transfer structure 103 and a spring 104. Among them, the support sleeve 101 is sleeved outside the bearing 40 at the end of the roller 30. The support shaft 102 is arranged vertically. The support sleeve 101 is provided with a radial plug hole. The radial plug hole of the support sleeve 101 and the upper end of the support shaft 102 can be inserted together to move up and down. The transfer structure 103 and the support shaft 102 are integrally arranged or assembled together, and can be specifically arranged or assembled at the lower end of the support shaft 102. The spring 104 is sleeved outside the support shaft 102. When the roller 30 of the furnace roller table vibrates up and down, the support part as a whole will move up and down accordingly, and at the same time, the support sleeve 101 will move up and down relative to the support shaft 102. When the support sleeve 101 moves downward relative to the support shaft 102, the spring 104 stores energy and shortens. When the support sleeve 101 moves upward relative to the support shaft 102, the spring 104 releases energy and extends, thereby playing a buffering role. Of course, the structure of the support portion is not limited thereto, as long as it can support the roller 30 and does not affect the rotation of the roller 30 .

[0038] In one embodiment, Figure 3 or Figure 4As shown, the specific structure of the transmission part is: including a first transmission rod 105, a second transmission rod 106, a driving transmission gear 107, a driven transmission gear 108 and a gear seat 109. Among them, the first transmission rod 105 is hinged with the adapter structure 103 of the support part to form a first hinge point, the first transmission rod 105 and the second transmission rod 106 are hinged to form a second hinge point, the second transmission rod 106 is fixedly connected to the center of the driving transmission gear 107, the driving transmission gear 107 is meshed with the driven transmission gear 108, the driving transmission gear 107 and the driven transmission gear 108 are rotatably connected to the gear seat 109, and the number of teeth of the driving transmission gear 107 can be less than the number of teeth of the driven transmission gear 108 to obtain a higher transmission efficiency. When the roller 30 of the furnace roller table vibrates up and down, the first transmission rod 105 rotates around the first hinge point, driving the second transmission rod 106 and the active transmission gear 107 to rotate around the center of the active transmission gear 107, thereby driving the driven transmission gear 108 to rotate, and the driven transmission gear 108 drives the input shaft of the recovery motor 1010 to rotate. The transmission part of this structure is simple in structure, and the transmission is reliable and stable. Of course, the structure of the transmission part is not limited to this, as long as the up and down movement of the support part can be converted into the rotation of the input shaft of the recovery motor 1010.

[0039] In one embodiment, the transmission part also includes a ratchet pawl assembly 9 (not shown in the figure), and the driven transmission gear 108 is connected to the input shaft of the recovery motor 1010 through the ratchet pawl assembly, so that when the driven transmission gear 108 rotates forward, it can drive the input shaft of the recovery motor 1010 to rotate forward, but cannot drive the input shaft of the recovery motor 1010 to rotate reversely when it rotates reversely. In this way, when the driven transmission gear 108 changes from forward rotation to reverse rotation, the input shaft of the recovery motor 1010 can still continue to rotate forward by inertia, thereby continuing to generate current, avoiding the problem that the rotation direction of the input shaft frequently changes with the up and down vibration of the roller 30, resulting in frequent rise and fall of the input shaft speed, resulting in low current generation efficiency of the recovery motor 1010.

[0040] In one embodiment, Figure 3 or Figure 4 As shown, both ends of each roller 30 of the furnace roller table are supported by a support part, and each support part is connected to two recovery motors 1010 through two transmission parts, so that the vibration energy of each roller 30 is recovered by four recovery motors 1010, so that the recovery efficiency is high. Figure 1 As shown, the two transmission parts and two recovery motors 1010 at the same end of each roller 30 can be arranged 180° symmetrically about the vertical center line of the support shaft 102 of the support part at this end of the roller 30, so that the overall structure is compact and occupies a small layout space.

[0041] In one embodiment, Figure 1As shown, the energy recovery system for the heating furnace roller table provided in the present application further includes a heat recovery device 20. The heat recovery device 20 includes a recovery pipe 201 arranged near the furnace roller table. When working, a recovery medium is introduced into the recovery pipe 201 to recover the heat of the transported parts on the furnace roller table to avoid the heat from directly diffusing into the surrounding environment to cause energy waste and damage to the electrical components near the furnace roller table. Specifically, when the transported parts are rolled parts, the recovery medium can be the clean circulating water inside the steel rolling production line, and the clean circulating water that has recovered the heat of the rolled parts can be used for heating the main plant.

[0042] In one embodiment, Figure 1 and Figure 5 As shown, the recovery pipe 201 is a hood-like structure as a whole, and the hood is arranged on both sides and above the furnace roller. The rollers 30 of the furnace roller are arranged in sequence along the longitudinal direction. The two sides of the furnace roller refer to the longitudinal sides of the furnace roller, so that the heat recovery efficiency is higher. Figure 5 In the figure, the recovery pipe 201 is composed of a number of transverse pipe sections, longitudinal pipe sections, vertical pipe sections and elbows connected end to end. The transverse pipe section cover is arranged above the furnace roller, and the longitudinal pipe section and the vertical pipe section are connected by elbows to form a U-shaped cover arranged on both sides of the furnace roller.

[0043] In one embodiment, Figure 5 As shown, the heat recovery device 20 also includes a flow measurement component and a flow adjustment component 204 arranged on the recovery pipeline 201. With this design, the flow adjustment component 204 can be controlled according to the measurement signal of the flow measurement component to adjust the flow of the recovery medium in the recovery pipeline 201 to meet different production needs. To ensure the accuracy of flow measurement, an inlet flow measurement component 202 can be set at the inlet end of the recovery pipeline 201, and an outlet flow measurement component 203 can be set at the outlet end of the recovery pipeline 201.

[0044] In one embodiment, the heat recovery device 20 is provided with a controller and a weight sensor (not shown in the figure), the weight sensor is used to measure the weight of the transported parts on the furnace roller, the controller is connected to the weight sensor, the flow measurement component and the flow adjustment component 204 for intelligently adjusting the opening of the flow adjustment component 204 according to the measurement data of the weight sensor and the flow measurement component, when the weight is large, the opening of the flow adjustment component 204 is increased, when the weight is small, the opening of the flow adjustment component 204 is decreased, for example, when the weight reaches more than 2.5t, the flow adjustment component 204 can be in a fully open state. Of course, this adjustment process can also be performed manually.

[0045] In one embodiment, the recovery pipe 201 is designed to prevent backflow to prevent the recovery medium from flowing back from the outlet to the inlet. Specifically, the backflow prevention design includes but is not limited to: making the inlet of the recovery pipe 201 higher than the outlet of the recovery pipe 201, setting an anti-backflow structure inside the recovery pipe 201, connecting a one-way valve to the recovery pipe 201, etc. Figure 6 In the embodiment, a backflow prevention structure is arranged inside the recovery pipe 201, and the backflow prevention structure includes a plurality of cones 2011 arranged in sequence along the flow direction of the medium, the large diameter end of each cone 2011 is relatively close to the inlet end of the recovery pipe 201, and the small diameter end of each cone 2011 is relatively close to the outlet end of the recovery pipe 201.

[0046] The above embodiments can be freely combined without conflict.

[0047] In summary, the energy recovery system for the heating furnace roller table provided by the present application recovers the vibration energy of the furnace roller table by setting a vibration energy recovery device 10, thereby reducing the demand for external energy of the furnace roller table, thereby reducing the operating cost of the furnace roller table. Further, by setting a heat recovery device 20 to recover the heat of the transported parts on the furnace roller table, it is avoided that the heat is directly diffused into the surrounding environment to cause energy waste and damage to the electrical components near the furnace roller table.

[0048] The above specific examples are used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A heating furnace roller energy recovery system, characterized in that: The energy recovery system comprises a vibration energy recovery device (10), wherein the vibration energy recovery device (10) comprises a support portion, a transmission portion and a recovery motor (1010), wherein the support portion supports the roller (30) of the furnace discharge roller table and can move up and down with the up and down vibration of the roller (30), and the transmission portion connects the support portion and the input shaft of the recovery motor (1010), and the transmission portion can convert the up and down movement of the support portion into the rotation of the input shaft of the recovery motor (1010).

2. The heating furnace roller table energy recovery system according to claim 1 is characterized in that: The supporting portion is an elastic supporting portion.

3. The heating furnace roller table energy recovery system according to claim 2 is characterized in that: The elastic support portion comprises a support sleeve (101), a support shaft (102), a spring (104) and a transfer structure (103) for connecting the transmission portion; the support sleeve (101) is sleeved outside the bearing (40) at the end of the roller (30) of the furnace discharge roller; the support shaft (102) is arranged vertically; the upper end of the support shaft (102) and the radial insertion hole of the support sleeve (101) are plugged together so as to be movable up and down; the spring (104) is sleeved outside the support shaft (102); when the roller (30) of the furnace discharge roller vibrates up and down, the elastic support portion as a whole moves up and down accordingly; and the support sleeve (101) moves up and down relative to the support shaft (102) so as to store energy and compress or release energy and extend the spring (104).

4. The heating furnace roller table energy recovery system according to claim 3 is characterized in that: The transmission part comprises a first transmission rod (105), a second transmission rod (106), a driving transmission gear (107) and a driven transmission gear (108); the first transmission rod (105) is hinged with the transfer structure (103) of the support part to form a first hinge point; the first transmission rod (105) and the second transmission rod (106) are hinged with each other to form a second hinge point; the second transmission rod (106) is fixedly connected to the center of the driving transmission gear (107); the driven transmission gear (108) is meshed with the driving transmission gear (107); when the roller (30) of the furnace discharge roller table vibrates up and down, the first transmission rod (105) rotates around the first hinge point, driving the second transmission rod (106) and the driving transmission gear (107) to rotate around the center of the driving transmission gear (107), thereby driving the driven transmission gear (108) to rotate; and the driven transmission gear (108) drives the input shaft of the recovery motor (1010) to rotate.

5. The heating furnace roller table energy recovery system according to claim 4 is characterized in that: Both ends of each roller (30) of the furnace-discharging roller conveyor are supported by a supporting part respectively, and each supporting part is connected to two recovery motors (1010) through two transmission parts respectively, and the two transmission parts and two recovery motors (1010) at the same end of each roller (30) are arranged symmetrically at 180° with respect to the vertical center line of the support shaft (102) of the support part at this end.

6. The heating furnace roller table energy recovery system according to claim 4, characterized in that: The transmission part also includes a ratchet pawl assembly, and the driven transmission gear (108) is connected to the input shaft of the recovery motor (1010) through the ratchet pawl assembly, so that when the driven transmission gear (108) rotates in the forward direction, it can drive the input shaft of the recovery motor (1010) to rotate, but when it rotates in the reverse direction, it cannot drive the input shaft of the recovery motor (1010) to rotate.

7. The heating furnace discharge roller energy recovery system according to any one of claims 1 to 6, characterized in that: The energy recovery system comprises a heat recovery device (20), wherein the heat recovery device (20) comprises a recovery pipe (201) arranged near the furnace exit roller, and when in operation, a recovery medium is introduced into the recovery pipe (201) to recover the heat of the transported parts on the furnace exit roller.

8. The heating furnace roller table energy recovery system according to claim 7, characterized in that: The recovery pipe (201) is a cover-shaped structure as a whole, and is arranged on both sides and above the furnace discharge roller.

9. The heating furnace discharge roller table energy recovery system according to claim 7, characterized in that: The heat recovery device (20) comprises a flow measurement component and a flow adjustment component (204) arranged on the recovery pipeline (201).

10. The heating furnace discharge roller energy recovery system according to claim 9, characterized in that: The heat recovery device (20) comprises a controller and a weight sensor, wherein the weight sensor is used to measure the weight of the transported parts on the furnace exit roller, and the controller is communicatively connected with the flow measurement component, the flow regulation component (204) and the weight sensor to intelligently adjust the opening of the flow regulation component (204) according to the measurement data of the flow measurement component and the weight sensor.

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