Trolley furnace

Abstract

The utility model discloses a trolley furnace which solves the technical problem that the temperature of an existing trolley furnace is rapidly reduced when a furnace door is opened and closed. The trolley furnace comprises a furnace body, two furnace doors, a rail, a trolley and a first driving mechanism, the furnace body is provided with a heating cabin, the heating cabin is used for heating a wire rod, two opposite side walls of the furnace body are provided with entrances and exits, the two entrances and exits are used for allowing the wire rod to enter and exit the heating cabin, and the two furnace doors are arranged on the two opposite side walls of the furnace body respectively so as to open and close the corresponding entrances and exits; the track penetrates through the furnace body, and the two ends of the track are both located outside the furnace body. The trolley is slidably arranged on the track; the length of the trolley is not less than twice that of the furnace body; and the first driving mechanism operably drives the trolley to reciprocate between the two ends of the track. Heat loss can be greatly reduced, and energy consumption is reduced.

Description

Technical Field

[0001] This application belongs to the technical field of industrial rolling mill equipment, specifically relating to a bogie hearth furnace. Background Technology

[0002] The existing bogie furnace mainly consists of two parts: the furnace body and the electrical control system. The furnace body mainly includes the furnace shell, furnace lining, heating elements, furnace door, and bogie. During production, loading and unloading the wire rod to be heated requires opening the furnace door, and the bogie is pulled out of the furnace by the traction mechanism. At this time, the furnace temperature drops sharply due to the convection of cold air outside the furnace, resulting in rapid heat loss, increased power consumption, and energy waste. Summary of the Invention

[0003] To address the technical problem of rapid temperature drop when opening and closing the furnace door in current bogie furnaces, this application provides a bogie furnace.

[0004] In a first aspect of this application, a bogie hearth furnace is provided, comprising:

[0005] The furnace body has a heating chamber, and inlets and outlets are provided on both opposite side walls of the furnace body;

[0006] Two furnace doors are respectively located on opposite side walls of the furnace body to open and close the corresponding inlets and outlets;

[0007] The track passes through the furnace body, with both ends of the track located outside the furnace body;

[0008] A trolley is slidably mounted on the track, and the length of the trolley is not less than twice the length of the furnace body;

[0009] A first drive mechanism operably drives the trolley to reciprocate between the two ends of the track.

[0010] In some embodiments, the trolley furnace further includes a support frame disposed outside the furnace body, with insulation plates disposed on opposite sides of the support frame. The two insulation plates correspond one-to-one with the furnace door. When the furnace door is open at the inlet / outlet, the side wall of the furnace door facing the heating chamber is covered by the insulation plates.

[0011] In some embodiments, the support frame is disposed at the top of the furnace body, the insulation plate is disposed on the upper part of the support frame, and the furnace door is operable to slide to the top of the support frame.

[0012] In some embodiments, the support frame is provided with a limiting structure, which abuts against the bottom end of the furnace door when the furnace door is located at the top of the support frame.

[0013] In some embodiments, the support frame is provided with a second drive mechanism that can operably raise and lower the furnace door.

[0014] In some embodiments, the second drive mechanism includes an electric hoist and an anchor chain connecting the electric hoist and the top of the furnace door.

[0015] In some embodiments, the furnace body is provided with a plurality of locking members for locking the furnace doors, and each side of the furnace door is fitted with at least two of the locking members to lock the top and bottom of the furnace door to the furnace body.

[0016] In some embodiments, the trolley comprises a base plate, refractory components disposed around the base plate, and a plurality of wheelsets disposed at the bottom of the base plate.

[0017] In some embodiments, the first drive mechanism is a geared motor, which is connected to a wheelset in a drive configuration.

[0018] In some embodiments, the bottom plate of the trolley is provided with lightweight refractory bricks, and the outer wall of the bottom plate is provided with heavy refractory bricks.

[0019] When the bogie furnace provided according to one or more embodiments of this application removes the processed wire rod, the opening at the bottom of the bogie is always blocked, and the hot air in the heating chamber cannot flow out from the bottom of the heating chamber. That is, at this time, the heat can only flow out from one inlet and outlet, which can greatly reduce the heat loss. The time for the bogie furnace to reheat to the processing temperature is shortened, which can shorten the processing time of the bogie furnace for the next batch of wire rod and reduce energy consumption. Attached Figure Description

[0020] Figure 1 A schematic diagram of the trolley furnace in one or more embodiments of this application is shown.

[0021] Figure 2 It shows Figure 1 A structural diagram from another perspective.

[0022] Explanation of reference numerals in the attached drawings: 1-furnace body, 2-furnace door, 3-trolley, 4-support frame, 5-insulation board, 6-anchor chain. Detailed Implementation

[0023] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0024] Please see Figure 1 and Figure 2 According to a first aspect of this application, a bogie furnace is provided, including a furnace body 1, two furnace doors 2, a track, a bogie 3, and a first drive mechanism.

[0025] The furnace body 1 has a heating chamber for heating wire rods. The furnace body 1 has inlets and outlets on opposite side walls. Both inlets and outlets are used for wire rods to enter and exit the heating chamber. Two furnace doors 2 are respectively located on opposite side walls of the furnace body 1 to open and close the corresponding inlets and outlets. A track passes through the furnace body 1, and both ends of the track are located outside the furnace body 1. A trolley 3 is slidably mounted on the track. The length of the trolley 3 is not less than twice the length of the furnace body 1. A first drive mechanism can operably drive the trolley 3 to reciprocate between the two ends of the track.

[0026] The trolley 3 can move back and forth between the two ends of the track. The furnace body 1 is mounted in the middle of the track. Understandably, during use, after placing the wire rod on the trolley 3 near the end of the furnace body 1, the trolley 3 is moved so that the wire rod is completely inside the heating chamber, and the top surface of the trolley 3 covers the opening at the bottom of the furnace body 1. At this time, closing the two furnace doors 2 can close the cavity of the heating chamber, so as to facilitate the heat processing of the wire rod. After the hot processing of the wire rod is completed, the furnace door 2, which is furthest from the end of the trolley 3 where no wire rod is placed, is opened, and the trolley 3 is driven to move to transport the wire rod out. At this time, the end of the trolley 3 where no wire rod is placed will gradually be located in the heating chamber. That is, the opening at the bottom of the trolley 3 is always blocked, and the hot air in the heating chamber cannot flow out from the bottom of the heating chamber. That is, at this time, the heat can only flow out from one inlet and outlet. Compared with the existing trolley 3 furnace where the heat flows out from the bottom and outlet of the trolley 3 furnace, this application can significantly reduce heat loss. The time for the trolley 3 furnace to reheat to the processing temperature is shortened, which can shorten the processing time of the trolley 3 furnace for the next batch of wire rod and reduce energy consumption.

[0027] In some embodiments, the trolley furnace 3 also includes a support frame 4 disposed outside the furnace body 1. Insulation plates 5 are disposed on opposite sides of the support frame 4. The two insulation plates 5 correspond one-to-one with the furnace door 2. When the furnace door 2 is open at the entrance and exit, the side wall of the furnace door 2 facing the heating chamber is covered by the insulation plates 5.

[0028] During the processing of wire rod in the heating chamber, furnace door 2 also absorbs heat. After furnace door 2 is opened, it dissipates heat through thermal radiation. By installing insulation board 5, the furnace door 2 can face the insulation board 5 after it no longer blocks the entrance and exit of the furnace body 1. The insulation board 5 being close to the furnace door 2 can effectively reduce the heat loss through thermal radiation from the furnace door 2. As a result, when the corresponding entrance and exit of furnace door 2 is closed again, the temperature of furnace door 2 will not drop too much, and the time for the trolley 3 furnace to reheat to the processing temperature is shortened. The size of insulation board 5 is not smaller than the size of furnace door 2, and insulation board 5 can be made of any material with heat insulation effect.

[0029] In some embodiments, the support frame 4 is located at the top of the furnace body 1, the insulation plate 5 is located on the upper part of the support frame 4, and the furnace door 2 can be slidably moved to the top of the support frame 4. That is, the furnace door 2 opens and closes by lifting. Of course, the furnace door 2 can also open and close by sliding left and right, in which case the insulation plate 5 is located on one side of the furnace body 1.

[0030] In some embodiments, a limiting structure is provided on the support frame 4. When the furnace door 2 is located at the top of the support frame 4, the limiting structure abuts against the bottom of the furnace door 2. The limiting structure limits the furnace door 2, preventing it from suddenly falling and improving operational safety. The limiting structure can be a pin or other structure capable of locking the furnace door 2 to the top of the support frame 4.

[0031] In some embodiments, the support frame 4 is equipped with a second drive mechanism, which can operably raise and lower the furnace door 2. That is, the furnace door 2 is raised and lowered by the second drive mechanism, improving the efficiency of opening and closing the entrance / exit. Specifically, the second drive mechanism includes an electric hoist and an anchor chain 6 connecting the electric hoist and the top of the furnace door 2. The electric hoist can efficiently and stably raise the furnace door 2.

[0032] In some embodiments, the furnace body 1 is provided with a plurality of locking elements for locking the furnace door 2. Each side of the furnace door 2 is fitted with at least two locking elements to lock the top and bottom of the furnace door 2 onto the furnace body 1. That is, by providing multiple locking elements to press the furnace door 2 tightly against the furnace body 1, the sealing between the furnace door 2 and the furnace body 1 can be improved, further reducing heat loss.

[0033] In some embodiments, the trolley 3 comprises a base plate, refractory components surrounding the base plate, and multiple wheel sets disposed at the bottom of the base plate. The multiple wheel sets enhance the overall load-bearing capacity of the trolley 3 and improve its stability during movement. Specifically, the first drive mechanism is a geared motor, which is connected to one wheel set to improve the smoothness of the trolley 3's movement. The wheel sets are made of high-strength steel and have undergone tempering and quenching heat treatment, resulting in good high-temperature resistance and resistance to damage.

[0034] In some embodiments, the bottom plate of the trolley 3 is lined with lightweight refractory bricks, while the outer wall of the bottom plate is lined with heavy refractory bricks. Both lightweight and heavy refractory bricks have good thermal insulation properties. The lightweight refractory bricks are used to reduce the overall weight of the trolley 3, while the heavy refractory bricks have better load-bearing capacity, providing effective support for the wire rods and preventing deformation of the top wall of the bottom plate.

[0035] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this application, 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" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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 application.

[0037] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0038] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0039] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A bogie hearth furnace, characterized in that, include: The furnace body has a heating chamber, and inlets and outlets are provided on both opposite side walls of the furnace body; Two furnace doors are respectively located on opposite side walls of the furnace body to open and close the corresponding inlets and outlets; The track passes through the furnace body, with both ends of the track located outside the furnace body; A trolley is slidably mounted on the track, and the length of the trolley is not less than twice the length of the furnace body; A first drive mechanism operably drives the trolley to reciprocate between the two ends of the track.

2. The bogie hearth furnace according to claim 1, characterized in that, The bogie furnace also includes a support frame disposed outside the furnace body. Insulation plates are disposed on opposite sides of the support frame. The two insulation plates correspond one-to-one with the furnace door. When the furnace door is open at the inlet / outlet, the side wall of the furnace door facing the heating chamber is covered by the insulation plates.

3. The bogie hearth furnace according to claim 2, characterized in that, The support frame is located at the top of the furnace body, the insulation board is located on the upper part of the support frame, and the furnace door can be operated to slide to the top of the support frame.

4. The bogie hearth furnace according to claim 3, characterized in that, The support frame is provided with a limiting structure, which abuts against the bottom end of the furnace door when the furnace door is located at the top of the support frame.

5. The bogie hearth furnace according to claim 3, characterized in that, The support frame is equipped with a second drive mechanism, which can operably raise and lower the furnace door.

6. The bogie furnace according to claim 5, characterized in that, The second drive mechanism includes an electric hoist and an anchor chain connecting the electric hoist and the top of the furnace door.

7. The bogie hearth furnace according to claim 1, characterized in that, The furnace body is provided with a plurality of locking members for locking the furnace door, and each side of the furnace door is fitted with at least two of the locking members to lock the top and bottom of the furnace door to the furnace body.

8. The bogie hearth furnace according to claim 1, characterized in that, The trolley comprises a base plate, refractory components disposed around the base plate, and multiple wheel pairs disposed at the bottom of the base plate.

9. The bogie hearth furnace according to claim 8, characterized in that, The first drive mechanism is a geared motor, which is connected to a wheelset for drive.

10. The bogie hearth furnace according to claim 8, characterized in that, The bottom plate of the trolley is lined with lightweight refractory bricks, and the outer wall of the bottom plate is lined with heavy refractory bricks.

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