Rectangular distributed fire barrier for heat accumulating type trolley furnace

Abstract

The utility model relates to the technical field of furnaces and kilns, and discloses a heat accumulating type trolley furnace rectangular distributed fire barrier which comprises a trolley, a movable plate is arranged at the bottom end of the trolley, a fire barrier assembly is arranged at the top end of the trolley, the fire barrier assembly comprises a first fire barrier body, and the first fire barrier body is fixedly installed at the top end of the trolley. A plurality of groups of first fire barriers are arranged, the first fire barriers are respectively arranged at four corners of the trolley, a second fire barrier is fixedly mounted at the top end of the trolley, a buffer assembly is arranged at the bottom end of the trolley, and the buffer assembly comprises a buffer plate. According to the utility model, the L-shaped first fire barrier and the rectangular second fire barrier uniformly distributed above the trolley are arranged, so that the flow guide direction of flame can be changed, the flame rigidity can be prevented from being weakened, and the flame can be prevented from directly washing the furnace body through the matching of the first fire barrier and the second fire barrier; the effect of preventing heat from overflowing is obvious, and damage to the furnace door frame and the stand columns is reduced.

Description

Technical Field

[0001] The utility model relates to the field of furnace kiln technology, in particular to a rectangular distributed fire baffle for a regenerative walking-beam furnace. Background Technique

[0002] In the early 21st century, the regenerative combustion technology in China has experienced a rapid development process and gradually become mature and perfect. The core key of the regenerative combustion technology lies in that, by virtue of several pairs of high-efficiency regenerators or regenerative burners working alternately, the combustion-supporting air can be successfully preheated from the original room temperature to a high temperature of 800 to 1100 °C. At the same time, it is also necessary to reasonably and scientifically organize many aspects such as the angle, specific position, and flow configuration of the fuel and the combustion-supporting air entering the furnace.

[0003] The high-efficiency regenerator can make full use of the waste heat carried by the flue gas, and thus simultaneously achieve a series of remarkable effects of environmental protection, energy conservation, and improvement of heating quality, such as saving 20% to 50% of fuel, increasing the output by 10% to 30%, and reducing the flue gas emissions by 20% to 50%.

[0004] However, although the regenerative burner integrates the functions of heat supply and smoke exhaust, this characteristic also brings considerable difficulties to the precise control of temperature and furnace pressure. In fact, the furnace temperature and furnace pressure will fluctuate frequently with the commutation operation. For this reason, this type of furnace often easily appears the phenomenon of flame emerging from the furnace mouth. In addition, for the chamber furnace, its heating capacity mainly focuses on strengthening the regenerative burners at the lower part. Since the regenerative burner itself has a large capacity and the length of the furnace is short, the forced convection formed by the flame in the furnace is extremely strong, the air flow increases significantly, resulting in an instantaneous rise in the furnace pressure. The situation of the furnace flaming will cause great harm to the furnace door frame and columns, affecting the normal operation and service life of the furnace. Therefore, a rectangular distributed fire baffle for a regenerative walking-beam furnace is proposed to solve the above problems. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a rectangular distributed fire baffle for a regenerative walking-beam furnace, aiming to improve the problem that "the strong forced convection formed by the flame in the furnace leads to a significant increase in the air flow, resulting in an instantaneous rise in the furnace pressure, and the situation of the furnace flaming will cause great harm to the furnace door frame and columns, affecting the normal operation and service life of the furnace" in the prior art.

[0006] To achieve the above object, the present utility model adopts the following technical solutions: A rectangular distributed fire baffle for a regenerative bogie furnace, including a bogie, a moving plate is provided at the bottom end of the bogie, and a fire baffle assembly is provided at the top end of the bogie. The fire baffle assembly includes a first fire baffle, the first fire baffle is fixedly installed at the top end of the bogie, multiple groups of the first fire baffle are provided, and multiple groups of the first fire baffle are respectively arranged at the four corners of the bogie. A second fire baffle is fixedly installed at the top end of the bogie.

[0007] As a further description of the above technical solution:

[0008] A buffer assembly is provided at the bottom end of the bogie. The buffer assembly includes a buffer plate. The moving plate is slidably connected to the bottom end of the bogie and two groups are provided. The buffer plate is fixedly connected between the two groups of moving plates. A positioning frame is fixedly connected to the top end of the buffer plate. An elastic sheet is fixedly installed on the right side of the moving plate near the left side of the positioning frame at the top end of the buffer plate. A positioning plate is fixedly connected to the top end of the buffer plate near the left side of the elastic sheet.

[0009] As a further description of the above technical solution:

[0010] Multiple groups of the second fire baffle are provided. Multiple groups of the second fire baffle are evenly arranged at the top end of the bogie near the multiple groups of the first fire baffle. The first fire baffle is arranged in an L shape.

[0011] As a further description of the above technical solution:

[0012] The second fire baffle is arranged in a rectangular shape.

[0013] As a further description of the above technical solution:

[0014] The positioning plate and the elastic sheet are elastically connected by a second spring. One end of the second spring is fixedly connected to the right side of the positioning plate, and the other end of the second spring is fixedly connected to the left end of the elastic sheet. A guide block is slidably connected to the inner wall of the positioning frame. A round rod is fixedly connected to the right side of the guide block. A ring is rotatably connected to the outer wall of the round rod.

[0015] As a further description of the above technical solution:

[0016] A connecting plate is fixedly connected to the right side of the ring. The connecting plate is hinged to the bottom end of the bogie.

[0017] As a further description of the above technical solution:

[0018] The positioning frame and the bogie are elastically connected by a first spring. One end of the first spring is fixedly connected to the bottom end of the bogie, and the other end of the first spring is fixedly connected to the top end of the positioning frame.

[0019] As a further description of the above technical solution:

[0020] The guiding block is elastically connected to the inner wall of the positioning frame through the third spring. One end of the third spring is fixedly connected to the bottom end of the guiding block, and the other end of the third spring is fixedly connected to the inner wall of the bottom end of the positioning frame.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by arranging the first fire baffle and the second fire baffle, the first fire baffle is arranged in an L shape, and the second fire baffle is arranged in a rectangular shape and evenly distributed above the trolley. Thus, through the cooperation of the first fire baffle and the second fire baffle, the change of the diversion direction of the flame can be realized, the weakening of the flame stiffness can be prevented, the function of reducing the direct scouring of the furnace body by the flame can be achieved, and the effect of blocking the heat from overflowing is obvious, reducing the harm to the furnace door frame and the columns.

[0023] 2. In the utility model, by arranging the elastic sheet, the elastic sheet is impacted by the flame and the furnace pressure, thereby squeezing the elastic sheet and the second spring. Through the elastic reverse acting force of the elastic sheet and the spring sheet, the trolley is buffered. At the same time, through the cooperation of the first spring and the third spring, the buffering effect can be further increased, the damage caused by the flame impact can be reduced, and the normal operation and service life of the furnace can be improved. Description of the Drawings

[0024] Figure 1 It is a three-dimensional structure schematic diagram of the overall device in the utility model;

[0025] Figure 2 It is a top view schematic diagram of the three-dimensional structure of the overall device in the utility model;

[0026] Figure 3 It is a front view schematic diagram of the three-dimensional structure of the overall device in the utility model;

[0027] Figure 4 It is a schematic sectional view of the three-dimensional structure of the positioning frame in the utility model;

[0028] Figure 5 It is a schematic sectional view of the three-dimensional structure of the trolley in the utility model.

[0029] Legend Explanation:

[0030] 1. Trolley; 2. First fire baffle; 3. Second fire baffle; 4. Moving plate; 5. Buffer plate; 51. First spring; 52. Positioning frame; 53. Connecting plate; 54. Elastic sheet; 55. Second spring; 56. Positioning plate; 57. Third spring; 58. Guiding block; 59. Round rod; 510. Ring. Detailed Implementation Modes

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1 and Figure 2 The utility model provides an embodiment of a rectangular distributed fire barrier of a regenerative trolley furnace, comprising a trolley 1 for carrying workpieces to be heated in and out of the furnace body, which generally has good load-bearing capacity and mobility. The bottom end of the trolley 1 is provided with a movable plate 4 with good load-bearing capacity and mobility. The top of the trolley 1 is provided with a fire barrier assembly, which includes a fire barrier 2 for blocking the flame and preventing the flame from impacting the furnace body and the furnace door frame. The fire barrier 2 is fixedly installed on the top of the trolley 1. There are multiple groups of fire barriers 2, and the multiple groups of fire barriers 2 are respectively arranged at the four corners of the trolley 1. By arranging them at the four corners of the trolley 1, It can change the direction of the flame's diversion, prevent the flame's rigidity from weakening, reduce the flame's ability to directly flush the furnace body, and block heat overflow. A fire baffle 23 is fixedly installed on the top of the trolley 1, which can utilize the gaps between multiple groups of fire baffles 23 in the furnace to adjust the up and down movement distribution of the airflow to balance the heating effect of the product during the firing process. The cooperation of fire baffle 1 2 and fire baffle 2 3 can reduce the flame's ability to directly flush the furnace body, and at the same time block heat overflow, prevent the flame from catching fire during forced convection, reduce the harm of the flame's outward spread to the furnace door frame and columns, and ensure the stable state of the heat storage trolley furnace equipment and normal production operation.

[0033] Reference Figure 1 、 Figure 3 and Figure 5 A buffer assembly is provided at the bottom end of the trolley 1, and the buffer assembly includes a buffer plate 5 for providing support. The movable plate 4 is slidably connected to the bottom end of the trolley 1 and is provided with two groups. The buffer plate 5 is fixedly connected between the two groups of movable plates 4, and support is provided by the two groups of movable plates 4. The top of the buffer plate 5 is fixedly connected with a positioning frame 52 for providing support. The top of the buffer plate 5 is close to the left side of the positioning frame 52 and the right side of the movable plate 4 is fixedly installed with an elastic piece 54 that can elastically buffer the force of the flame impacting the trolley 1. The top of the buffer plate 5 is close to the left side of the elastic piece 54 and is fixedly connected with a positioning plate 56 that cooperates with the elastic piece 54 to support the spring 2 55.

[0034] Reference Figure 1 and Figure 2, there are multiple sets of the second firewalls 3, and the multiple sets of the second firewalls 3 are evenly arranged on the top end of the trolley 1 near the multiple sets of the first firewalls 2. The first firewalls 2 are arranged in an L shape. By arranging the multiple sets of the first firewalls 2 at the four corners of the trolley 1 and setting the first firewalls 2 in an L shape, the change of the flow direction of the flame can be realized, the weakening of the flame stiffness can be prevented, the function of reducing the direct scouring of the furnace body by the flame can be achieved, and the heat spillage can be blocked. The second firewalls 3 are arranged in a rectangular shape. By setting multiple sets of the second firewalls 3 and setting the second firewalls 3 in a rectangular shape, the up-and-down movement distribution of the air flow can be adjusted by using the gaps between the multiple sets of the second firewalls 3 in the furnace, so as to balance the heat receiving effect of the product during the firing process.

[0035] Refer to Figure 2 , Figure 3 and Figure 4 , the positioning plate 56 and the elastic sheet 54 are elastically connected by the second spring 55. One end of the second spring 55 is fixedly connected to the right side of the positioning plate 56, and the other end of the second spring 55 is fixedly connected to the left end of the elastic sheet 54. By squeezing the elastic sheet 54 to deform and squeeze the second spring 55, the elastic sheet 54 can be buffered by the reverse acting force of the squeezed second spring 55, preventing the elastic sheet 54 from deforming excessively, thereby improving the service life of the elastic sheet 54. A guide block 58 for providing a support round rod 59 is slidably connected to the inner wall of the positioning frame 52. A round rod 59 of the support ring 510 is fixedly connected to the right side of the guide block 58. A ring 510 of the support connecting plate 53 is rotatably connected to the outer wall of the round rod 59. A connecting plate 53 connecting the trolley 1 with the round rod 59 and the guide block 58 is fixedly connected to the right side of the ring 510. The connecting plate 53 is hinged to the bottom end of the trolley 1.

[0036] Refer to Figure 1 , Figure 3 and Figure 4 , the positioning frame 52 and the trolley 1 are elastically connected by the first spring 51. One end of the first spring 51 is fixedly connected to the bottom end of the trolley 1, and the other end of the first spring 51 is fixedly connected to the top end of the positioning frame 52. The guide block 58 and the inner wall of the positioning frame 52 are elastically connected by the third spring 57. One end of the third spring 57 is fixedly connected to the bottom end of the guide block 58, and the other end of the third spring 57 is fixedly connected to the bottom inner wall of the positioning frame 52. When the trolley 1 is impacted by the flame and moves to squeeze the first spring 51 and push the connecting plate 53 to move, the connecting plate 53 pushes the round rod 59 and the guide block 58 to move, and the guide block 58 squeezes the third spring 57. Thus, the impact force of the trolley 1 impacted by the flame can be buffered by the cooperation of the reverse acting forces of the squeezed first spring 51 and the third spring 57, thereby improving the service life of the trolley 1, reducing the damage caused by the flame impact, and improving the normal operation and service life of the furnace.

[0037] Working principle: When the regenerative walking-beam furnace is working, the walking beam 1 carries the workpieces to be heated in and out of the furnace body. The fire baffle 1-2 with an L shape at the four corners of the walking beam 1 can change the flow direction of the flame, prevent the weakening of the flame stiffness, reduce the possibility of the flame directly scouring the furnace body, effectively block the heat from overflowing. At the same time, the fire baffle 2-3 with a rectangular shape is evenly distributed at the top of the walking beam 1 and located between the fire baffles 1-2. By using the gaps between them and the rectangular shape at the upper end, the up-and-down movement distribution of the air flow can be adjusted, balance the heat absorption effect of the product during the firing process, further reduce the risk of the flame directly scouring the furnace body, and at the same time block the heat from overflowing, reduce the impact damage of the flame spreading outward on the furnace door frame and columns.

[0038] When the walking beam 1 is impacted by the flame, the buffer assembly comes into play. When the walking beam 1 is impacted and moves, it first squeezes the first spring 51, and at the same time pushes the connecting plate 53 to move. The connecting plate 53 drives the round rod 59 and the guide block 58 to move. The guide block 58 squeezes the third spring 57. In addition, the elastic sheet 54 is squeezed and deformed and then squeezes the second spring 55. Through the reverse acting forces generated by the squeezing of the first spring 51, the second spring 55, the elastic sheet 54 and the third spring 57, the impact force of the flame impact on the walking beam 1 is buffered, so as to improve the service life of the walking beam 1, reduce the damage caused by the flame impact, and ensure the normal operation and service life of the furnace.

[0039] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rectangular distributed fire baffle for a regenerative trolley furnace, comprising a trolley (1), characterized in that: A moving plate (4) is provided at the bottom end of the trolley (1), and a fire blocking component is provided at the top end of the trolley (1). The fire blocking component includes a first fire blocking wall (2), and the first fire blocking wall (2) is fixedly installed at the top end of the trolley (1). A plurality of groups of the first fire blocking walls (2) are provided, and the plurality of groups of the first fire blocking walls (2) are respectively arranged at the four corners of the trolley (1). A second fire blocking wall (3) is fixedly installed at the top end of the trolley (1).

2. The rectangular distributed fire baffle of the regenerative car-bottom furnace according to claim 1, characterized in that: A buffer component is provided at the bottom end of the trolley (1). The buffer component includes a buffer plate (5). The moving plate (4) is slidably connected to the bottom end of the trolley (1) and there are two groups. The buffer plate (5) is fixedly connected between the two groups of moving plates (4). A positioning frame (52) is fixedly connected to the top end of the buffer plate (5). An elastic sheet (54) is fixedly installed on the right side of the moving plate (4) near the left side of the positioning frame (52) at the top end of the buffer plate (5). A positioning plate (56) is fixedly connected to the top end of the buffer plate (5) near the left side of the elastic sheet (54).

3. The rectangular distributed fire baffle of the regenerative trolley furnace according to claim 1, characterized in that: A plurality of groups of the second fire blocking walls (3) are provided, and the plurality of groups of the second fire blocking walls (3) are evenly arranged between the plurality of groups of the first fire blocking walls (2) at the top end of the trolley (1). The first fire blocking wall (2) is in an L shape.

4. The rectangularized distributed fire baffle of the regenerative walking-beam furnace according to claim 1, characterized in that: The second fire blocking wall (3) is in a rectangular shape.

5. The rectangular distributed fire baffle of the regenerative trolley furnace according to claim 2, characterized in that: The positioning plate (56) and the elastic sheet (54) are elastically connected by a second spring (55). One end of the second spring (55) is fixedly connected to the right side of the positioning plate (56), and the other end of the second spring (55) is fixedly connected to the left end of the elastic sheet (54). A guide block (58) is slidably connected to the inner wall of the positioning frame (52). A round rod (59) is fixedly connected to the right side of the guide block (58). A ring (510) is rotatably connected to the outer wall of the round rod (59).

6. The rectangularized distributed fire baffle of the regenerative trolley furnace according to claim 5, characterized in that: A connecting plate (53) is fixedly connected to the right side of the ring (510), and the connecting plate (53) is hinged to the bottom end of the trolley (1).

7. A rectangular distributed fire baffle for a regenerative trolley furnace according to claim 2, characterized in that: The positioning frame (52) and the trolley (1) are elastically connected by a first spring (51). One end of the first spring (51) is fixedly connected to the bottom end of the trolley (1), and the other end of the first spring (51) is fixedly connected to the top end of the positioning frame (52).

8. A rectangularized distributed fire baffle for a regenerative walking-beam furnace according to claim 5, characterized in that: The guide block (58) and the inner wall of the positioning frame (52) are elastically connected by a third spring (57). One end of the third spring (57) is fixedly connected to the bottom end of the guide block (58), and the other end of the third spring (57) is fixedly connected to the bottom inner wall of the positioning frame (52).

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