Hydraulic support structural part preheating platform capable of saving space

Abstract

The utility model provides a hydraulic support structural member preheating platform capable of saving space, which comprises a load-bearing preheating platform, a heating groove is arranged in the load-bearing preheating platform, and a heating element is arranged in the heating groove. Side walls are arranged on the two sides of the bearing preheating platform, rails are arranged on the top faces of the side walls in the length direction of the side walls, and telescopic heat insulation sheds which stretch out and draw back along the rails are arranged on the side walls. The hydraulic support structural part preheating platform capable of saving the space has the advantages that the heating elements are arranged in the heating groove of the load-bearing preheating platform and matched with the telescopic heat insulation shed to preheat workpieces, the hydraulic support structural part preheating platform is suitable for preheating operation of large workpieces, heating is even, and the heating efficiency is high; the heat insulation property of the telescopic heat insulation shed can effectively prevent heat loss in the preheating process, the telescopic heat insulation shed is folded, stored and unfolded, so that the space utilization rate of the preheating platform is high, the safety is high, the flexibility of the folding, storing and unfolding functions is high, the speed is high, and the use cost and the maintenance cost are low.

Description

Technical Field

[0001] This utility model relates to a preheating device for large structural components, specifically, to a space-saving preheating platform for hydraulic support structural components. Background Technology

[0002] Hydraulic support structural components typically require preheating before welding. For complex structures with thick plates and multiple weld seams, preheating ensures stable welding quality and guarantees long-term safe service of the hydraulic support in high-load underground environments.

[0003] Existing preheating equipment for hydraulic support structures, such as the online through-type automated preheating device for hydraulic support welding disclosed in Chinese Utility Model Patent CN201720843667.7, and a heat dissipation preheating platform device disclosed in Chinese Utility Model Patent CN202023052105.1, are limited in their load-bearing size and load-bearing weight, and can only be used for small and medium-sized hydraulic support structures, and cannot be used for large hydraulic support structures.

[0004] In existing technologies, trolleys are generally specialized equipment for preheating large hydraulic support structural components (such as top beams and bases). Their core consists of a movable trolley, a furnace heating system, and a multi-zone temperature control module. The trolley carries the workpiece in and out of the furnace via tracks. Resistance wire or gas heating elements are arranged on the furnace walls for stepped heating. Temperature control is achieved through a PLC controller, making it suitable for large workpieces up to ten meters in size and weighing tens of tons.

[0005] However, the mobility of the trolley also presents many problems, such as: the movement process leads to significant heat loss, resulting in high energy consumption costs over the long term; the movement process poses a risk of mechanical collisions, requiring highly standardized operation by personnel; the mobility characteristics result in a larger footprint for the trolley, increasing space usage and maintenance costs; the mobility characteristics also lead to a more complex structure for the trolley, resulting in higher overall costs, and the mechanical wear and tear caused by frequent movement further increases long-term operation and maintenance expenses.

[0006] In order to solve the above problems, people have been seeking an ideal technological solution. Utility Model Content

[0007] The purpose of this utility model is to address the shortcomings of existing technologies and improve the problems of severe heat loss, large space occupation, and high use and maintenance costs associated with the trolley equipment currently used for preheating large hydraulic support structural components. This invention provides a space-saving preheating platform for hydraulic support structural components, using a fixed load-bearing preheating platform and a retractable heat-insulating shed on the side wall of the platform to replace the trolley equipment, effectively reducing heat loss, space occupation, and use and maintenance costs.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows: it includes a load-bearing preheating platform, a heating groove is provided inside the load-bearing preheating platform, and a heating element is provided inside the heating groove; the load-bearing preheating platform has side walls on both sides, a track is provided on the top surface of the side walls along its length, and a telescopic heat insulation shed that extends and retracts along the track is provided on the side walls.

[0009] Based on the above, the load-bearing preheating platform includes anti-collision load-bearing platforms, and multiple anti-collision load-bearing platforms are spaced apart between the front and rear ends of the load-bearing preheating platform. The interval between adjacent anti-collision load-bearing platforms is the heating tank, and the top surface height of the anti-collision load-bearing platform is higher than the top surface height of the side wall.

[0010] Based on the above, the heating element is located at the bottom of the heating tank, and the heating element is a flameless burner tube.

[0011] Based on the above, the top surface of the side wall is higher than the bottom of the heating tank, and a heat diffusion tank is provided between the side wall and the load-bearing preheating platform.

[0012] Based on the above, a grid is provided above the heat diffusion groove between the side wall and the load-bearing preheating platform, and a supporting rib is provided at the bottom of the grid. The height of the grid is consistent with the height of the platform of the side wall.

[0013] Based on the above, ceramic fiberboard is laid inside the heating tank.

[0014] Based on the above, the front end of the retractable heat insulation shed is provided with a roller shutter door, which moves with the retractable heat insulation shed.

[0015] Based on the above, the rear of the load-bearing preheating platform is provided with a rear wall, and the telescopic heat insulation shed is located behind the rear wall after being fully folded and stored.

[0016] Based on the above, a foot platform is also provided on the side of the side wall away from the load-bearing preheating platform.

[0017] Based on the above, the heating element is connected to a combustion control system, which includes a gas proportioning module and / or a premixed gas zone supply module.

[0018] This utility model has substantial features and advancements compared to existing technologies. Specifically, it employs a heating element arrangement within the heating tank of a load-bearing preheating platform, combined with a retractable heat-insulating shed for preheating the workpiece, making it suitable for preheating large workpieces. The heating element is located directly beneath the workpiece, while the heating tank guides heat radiation diffusion, resulting in uniform heating and high heating efficiency. The heat insulation of the retractable heat-insulating shed effectively prevents heat loss during preheating. The folding and unfolding mechanism of the retractable heat-insulating shed maximizes the space utilization of the preheating platform, enhances safety, and provides high flexibility and speed in folding and unfolding, while also reducing operating and maintenance costs.

[0019] Meanwhile, the roller shutter door at the movable end (front end) of the telescopic insulated canopy further prevents heat loss, and the roller shutter door also has the advantage of flexible opening and closing; the rear wall can prevent the telescopic insulated canopy and roller shutter door from being damaged by collisions during hoisting operations; the heating element adopts flameless burner tubes, eliminating open flames, reducing the risk of fire, reducing direct high-temperature contact between oxygen and workpieces, and can evenly heat the workpieces; the setting of anti-collision load-bearing platform, heat diffusion groove, grid and foot platform increases the safety of hoisting operations and further enhances the uniformity of heating; the combustion control system can adjust the temperature or temperature distribution in real time, which is conducive to meeting the preheating requirements of complex workpieces or complex processes. Attached Figure Description

[0020] Figure 1 This is a three-dimensional perspective view of the overall structure of this utility model;

[0021] Figure 2 yes Figure 1 Detailed structural diagram at point A;

[0022] Figure 3 This is a top view schematic diagram of the overall structure of this utility model;

[0023] In the figure, the attached figures are labeled as follows:

[0024] 10 load-bearing preheating platform, 101 heating tank, 11 heating element, 12 anti-collision load-bearing platform, 20 side wall, 21 track, 22 grille, 23 foot platform, 30 telescopic heat insulation shed, 31 roller shutter door, 40 rear wall.

[0025] Workpiece 100. Detailed Implementation

[0026] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0027] Example 1

[0028] like Figures 1-3As shown, the space-saving hydraulic support structure preheating platform of this embodiment includes a load-bearing preheating platform 10. The load-bearing preheating platform 10 can be used to place the structural components of large hydraulic supports (such as top beams and bases) to preheat the structural components (hereinafter referred to as workpieces 100) as a whole. The workpieces 100 usually need to be lifted by equipment such as overhead cranes. Compared with trolley equipment, the fixed load-bearing preheating platform 10 can reduce the risk of accidents during lifting operations.

[0029] The load-bearing preheating platform 10 is equipped with a heating tank 101, and a heating element 11 is installed inside the heating tank 101. The arrangement of the heating element 11 inside the heating tank 101 of the load-bearing preheating platform 10 can prevent the heating element 11 from being accidentally damaged when lifting the workpiece 100. The heat radiation of the heating element 11 can be guided by the tank structure of the heating tank 101, reducing uneven heating of the workpiece 100 and avoiding local overheating or insufficient preheating of the workpiece 100. The heat of the heating element 11 can be directly applied to the bottom of the workpiece 100, enhancing the preheating effect, reducing heat loss, and lowering energy consumption costs.

[0030] The load-bearing preheating platform 10 has side walls 20 on both sides. The top surface of the side walls 20 has a track 21 that runs along its length. A telescopic heat insulation canopy 30 that extends and retracts along the track 21 is provided on the side walls 20. The telescopic heat insulation canopy 30 extends and retracts along the track 21 between the front and rear ends of the load-bearing preheating platform 10. The telescopic heat insulation canopy 30 includes a movable end and a fixed end. When fully extended, the movable end is located at the front end of the load-bearing preheating platform 10, and the fixed end is located at the rear end of the load-bearing preheating platform 10. The telescopic heat insulation canopy 30 can be a manual telescopic canopy or an electric telescopic canopy. When using an electric telescopic canopy, the motor for the telescopic heat insulation canopy 30 can be located at the fixed end of the load-bearing preheating platform 10 and the extension and folding of the telescopic heat insulation canopy 30 can be controlled by a screw. The motor for the telescopic heat insulation canopy 30 can also be located at the movable end of the telescopic heat insulation canopy 30 and the extension and folding of the telescopic heat insulation canopy 30 can be controlled by rollers. The relevant telescopic structures of the telescopic heat insulation canopy 30 are all existing technologies and will not be described in detail here.

[0031] As a preferred option, the retractable heat-insulating shed 30 uses a material with a certain heat insulation capacity as the skin structure of the shed body, and the skin structure can be a multi-layer structure. For example, the inner layer of the skin is made of aluminum foil composite material, the middle layer of the skin is sandwiched with flexible ceramic fiber felt, and the outer layer of the skin is made of glass fiber cloth.

[0032] Preferably, a ceramic fiber board is laid inside the heating tank 101 to prevent heat loss within the heating tank 101 and to facilitate rapid preheating of the heating element 11.

[0033] In this embodiment, heating elements 11 are arranged in the heating tank 101 of the load-bearing preheating platform 10, and a telescopic heat insulation shed 30 is used to preheat the workpiece 100. This method has significant advantages over trolley preheating equipment or other types of preheating equipment: the load-bearing preheating platform 10, heating elements 11, and telescopic heat insulation shed 30 scheme can be applied to large workpieces 100; the heating tank 101 guides the diffusion of heat radiation, and the heating elements 11 are directly located below the workpiece 100, resulting in uniform heating and high heating efficiency; the heat insulation performance of the telescopic heat insulation shed 30 can effectively prevent heat loss during the preheating process; the folding and storage of the telescopic heat insulation shed 30 can flexibly cover workpieces of different sizes, resulting in high space utilization; the folding and storage speed of the telescopic heat insulation shed 30 is fast; the telescopic heat insulation shed 30 has strong safety, with the shed body isolating high temperatures and reducing the risk of burns; the telescopic heat insulation shed 30 has low maintenance costs, no easily damaged parts, long service life, and good long-term economic efficiency, with lower overall energy consumption and maintenance costs.

[0034] Example 2

[0035] like Figure 1 As shown, in this embodiment, the movable end (i.e. the front end of the telescopic heat insulation shed 30) of the telescopic heat insulation shed 30 is also provided with a roller shutter door 31. The roller shutter door 31 moves with the telescopic heat insulation shed 30. The roller shutter door 31 can close or open the movable end of the telescopic heat insulation shed 30 as needed, so as to avoid the workpiece 100 placed on the load-bearing preheating platform 10 when the telescopic heat insulation shed 30 is unfolded or folded for storage. Preferably, the roller shutter door 31 is made of a material with a certain heat insulation capacity as the skin structure of the shed body, and the skin structure can be a multi-layer structure.

[0036] The load-bearing preheating platform 10 is provided with a rear wall 40. The fixed end of the telescopic heat insulation shed 30 is located at the rear end of the rear wall 40, so that the telescopic heat insulation shed 30 is located behind the rear wall 40 after being folded and stored, so as to prevent the telescopic heat insulation shed 30 from being bumped and damaged when the workpiece 100 is hoisted. If the telescopic heat insulation shed 30 is selected with a rear-mounted drive motor (that is, the motor matched with the telescopic heat insulation shed 30 is located at the rear end of the load-bearing preheating platform 10), its drive motor can be located behind the rear wall 40.

[0037] In this embodiment, the roller shutter door 31 at the movable end (front end) of the telescopic heat insulation shed 30 can further prevent heat loss during the preheating process of the load-bearing preheating platform 10 on the workpiece 100, and can also be flexibly opened and closed in conjunction with the telescopic heat insulation shed 30; the fixed end (rear end) of the telescopic heat insulation shed 30 is located behind the rear wall 40 to prevent collision damage to the telescopic heat insulation shed 30 and the roller shutter door 31 during hoisting operations.

[0038] Example 3

[0039] In this example, the heating element 11 is located at the bottom of the heating tank 101. The heating element 11 is a flameless burner tube. The flame burns inside the burner tube, and the burner tube radiates heat. This heat radiation is guided and diffused within the heating tank 101, ensuring uniform heating of the workpiece 100, reducing uneven heating and preventing localized overheating or insufficient preheating. The flameless burner tube can be a dedicated long-tube type made of high-quality stainless steel, which is heat-resistant and enhances the durability of the heating element 11. The relevant technologies for the flameless burner tube are existing technologies and will not be elaborated upon here.

[0040] In this embodiment, the heating element 11 adopts a flameless burner tube. The flameless combustion technology eliminates open flames, reduces the risk of fire, and reduces high-temperature exposure, ensuring the safety of operators. Flameless preheating reduces direct high-temperature contact between oxygen and workpiece 100, inhibiting oxidation of the metal surface. Flameless preheating at the bottom of the heating tank 101 is conducive to the diffusion of heat radiation, which can uniformly heat workpiece 100, relieve thermal stress, and prevent workpiece 100 from warping and deforming due to temperature difference.

[0041] Example 4

[0042] like Figures 1-3 As shown, in this embodiment, the load-bearing preheating platform 10 includes a collision-resistant load-bearing platform 12. The collision-resistant load-bearing platform 12 may be encased in a steel structure to enhance its impact resistance. For example, a 5-10mm thick steel plate may be attached to the outer side of the collision-resistant load-bearing platform 12. Multiple collision-resistant load-bearing platforms 12 are spaced apart between the front and rear ends of the load-bearing preheating platform 12. The collision-resistant load-bearing platforms 12 are used to place the workpiece 100. The interval between adjacent collision-resistant load-bearing platforms 12 is set as a heating groove 101. The top surface of the collision-resistant load-bearing platform 10 is higher than the top surface of the side wall 20, so that the workpiece 100 is placed on the platform above the side wall 20. The placement position of the workpiece 100 has a wide field of vision, which increases the efficiency and safety of the hoisting operation.

[0043] The top surface of the side wall 20 is higher than the bottom surface of the heating tank 101. A heat diffusion trough is provided between the side wall 20 and the load-bearing preheating platform 10. The heat diffusion trough allows the heat radiation of the heating element 11 to diffuse on both sides of the load-bearing preheating platform 10 (and also inside the telescopic heat insulation shed 30), further enhancing the preheating uniformity of the load-bearing preheating platform 10. A grid 22 is provided above the heat diffusion trough between the side wall 20 and the load-bearing preheating platform 10. The bottom of the grid 22 is provided with a supporting rib. The height of the grid 22 is the same as the platform height of the side wall 20. The grid 22 is laid above the heat diffusion trough, which will not hinder the diffusion of heat radiation from the heating element 11, and will also increase the working safety of the hoisting personnel and prevent them from falling into the air.

[0044] A foot platform 23 is also provided on the side of the side wall 20 away from the load-bearing preheating platform 10. The top surface of the foot platform 23 is flush with the top surface of the side wall 20, which facilitates the operation of hoisting personnel.

[0045] Example 5

[0046] In this embodiment, the preheating platform also includes a combustion control system connected to the heating element 11. The combustion control system includes a gas ratio module and / or a premixed gas zone supply module. The gas ratio module is connected between the heating element 11 (or the premixed gas zone supply module) and the gas supply pipeline. It can use devices such as flow regulating valves to control the mixing ratio of gas and air (or oxygen). The premixed gas zone supply module is located between the gas ratio module (or the gas supply pipeline) and the heating element 11. It can supply premixed gas (i.e., a mixture of gas and air) to multiple heating elements 11 in zones using multiple branch pipes and multiple valves. Thus, based on the layout of the heating element 11 in the heating tank 101 on the load-bearing preheating platform 10, the heating element 11 can be independently controlled in zones on the load-bearing preheating platform 10, and the temperature magnitude and temperature distribution can be adjusted in real time to meet the preheating process requirements of complex workpieces or different materials (such as gradient preheating before welding).

[0047] This embodiment may also include devices such as temperature sensors, gas leak alarms, flow meters, and display control terminals to further enhance the functionality of the preheating platform.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A space-saving preheating platform for hydraulic support structural elements, characterised in that, The application relates to a preheating platform, which comprises a load-bearing preheating platform (10) provided with a heating groove (101) and a heating element (11) arranged in the heating groove (101); side walls (20) are arranged on both sides of the load-bearing preheating platform (10), the top surface of each side wall (20) is provided with a track (21) arranged along the length direction of the side wall (20), and a telescopic heat insulation shed (30) is arranged on each side wall (20) and can extend along the track (21).

2. The space-saving hydraulic support structure preheating platform according to claim 1, characterized in that, The load-bearing preheating platform (10) comprises anti-collision load-bearing tables (12), a plurality of the anti-collision load-bearing tables (12) are arranged at intervals between the front end and the rear end of the load-bearing preheating platform (10), and the interval between adjacent anti-collision load-bearing tables (12) is the heating groove (101); and the top surface of each anti-collision load-bearing table (12) is higher than the top surface of each side wall (20).

3. The space-saving hydraulic support structure preheating platform according to claim 1, characterized in that, The heating element (11) is arranged at the groove bottom of the heating groove (101), and the heating element (11) is a flameless burner tube.

4. The space-saving hydraulic support structure component preheating platform according to claim 1 or 2 or 3, characterized in that, The top surface of each side wall (20) is higher than the groove bottom of the heating groove (101), and a heat diffusion groove is arranged between each side wall (20) and the load-bearing preheating platform (10).

5. The space-saving hydraulic support structure preheating platform according to claim 4, characterized in that, A grating (22) is arranged above the heat diffusion groove between each side wall (20) and the load-bearing preheating platform (10), the bottom of the grating (22) is provided with a support rib plate, and the height of the grating (22) is consistent with the height of the platform of each side wall (20).

6. The space-saving hydraulic support structure component preheating platform according to claim 1 or 2 or 3, characterized in that, Ceramic fiber plates are arranged in the heating groove (101).

7. The space-saving hydraulic support structure preheating platform according to claim 1, characterized in that, A roll-up door (31) is arranged at the front end of the telescopic heat insulation shed (30), and the roll-up door (31) moves along with the telescopic heat insulation shed (30).

8. The space-saving hydraulic support structure component preheating platform according to claim 1 or 7, characterized in that, A rear wall (40) is arranged at the rear part of the load-bearing preheating platform (10), and the telescopic heat insulation shed (30) is arranged behind the rear wall (40) when being completely folded.

9. The space-saving hydraulic support structure component preheating platform according to claim 1 or 2, characterized in that, A foot platform (23) is arranged on the side of each side wall (20) away from the load-bearing preheating platform (10).

10. The space-saving hydraulic support structure component preheating platform of claim 1, wherein, The heating element (11) is connected with a combustion control system, and the combustion control system comprises a gas proportioning module and / or a premixed gas partition supply module.

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