Blackbody furnace protection structure in heating furnace

Abstract

A black body furnace protection structure in a heating furnace comprises a movable base unit and a directional reflection unit. The movable base unit is arranged on a furnace lining of the heating furnace and comprises four lifting rods inserted into the furnace lining in a circumferential array mode, the depth of the portions, inserted into the furnace lining, of the lifting rods is adjustable, and ball buckles are arranged at the upper ends of the lifting rods. The directional reflection unit is arranged on the movable base unit and comprises a polygon prism black body plate, the upper end face of the black body plate is sprayed with black body paint, the four side faces of the black body plate are each provided with a first hemispherical groove, the lower end of the black body plate extends to form a first semi-through groove, the four outer side faces of the black body plate are each provided with a side block, and one side face of each side block is provided with a second hemispherical groove and a second semi-through groove. A spherical cavity formed by combining the first semi-spherical groove and the second semi-spherical groove is used for containing the ball buckle, and a columnar cavity formed by combining the first semi-through groove and the second semi-through groove is used for containing the upper portion of the lifting rod. According to the black body furnace protection structure in the heating furnace, the angle of the black body plate is easy to adjust, and when the structure is installed on a furnace lining, the vertical line of the black body plate can point to the workpiece placing position conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of furnace lining structures of heating furnaces, in particular to a black body furnace protection structure in a heating furnace. Background Art

[0002] In the heating furnace, the flame flow continuously flows through the furnace wall and the workpiece, providing heat to the furnace by convection and radiation. The furnace of the heating furnace is the space where the heated materials receive the heat energy emitted by the heat source. The heat dissipation loss of the furnace wall and the diffuse heat rays in the furnace result in a low heat ray arrival rate, wasting a lot of heat energy. Therefore, the furnace lining needs to be modified.

[0003] The prior art generally adopts a method of installing a large number of cylindrical black body elements on the furnace lining to improve the furnace emissivity and the heat ray placement rate. However, the vertical line of the furnace lining surface of the heating furnace is not necessarily directly opposite the position where the workpiece is placed. Therefore, it is necessary to adjust the angle of the black body element, but there are some problems: first, the black body element is difficult to process, and it is impossible to customize the large number of elements to be installed in the furnace one by one to make each heat ray emission angle different; second, using elements of the same specification, it is necessary for the staff to hang and pile up adhesives of different shapes during installation to adjust the component placement angle, which is too difficult to operate and cannot be realized. Utility Model Content

[0004] In view of the above defects, the utility model provides a black body furnace protection structure in a heating furnace. The angle of the black body plate is easy to adjust. When installed on the furnace lining, it is convenient to make the vertical line of the black body plate point to the workpiece placement position.

[0005] In order to achieve the purpose of this utility model, the following technologies are proposed:

[0006] A black body furnace protection structure in a heating furnace, comprising:

[0007] The movable base unit is arranged on the furnace lining of the heating furnace, and comprises four lifting rods which are inserted into the furnace lining in a circumferential array, and the depth of the lifting rods inserted into the furnace lining is adjustable, and a ball buckle is arranged on the upper end of the lifting rod;

[0008] A directional reflection unit is arranged on a movable base unit, comprising a black body plate in the shape of a polygonal column, the upper end surface of which is sprayed with black body paint, four sides of the black body plate along the circumferential array are respectively provided with first hemispherical grooves, and the lower end thereof is extended with a first semi-through groove that passes through to the outside of the lower end of the black body plate, and side blocks are respectively equipped outside the four sides of the black body plate having the first hemispherical groove, a second hemispherical groove symmetrically arranged with the first hemispherical groove is opened on one side of the side block, and a second semi-through groove that passes through to the outside of the lower end of the side block is extended at the lower end, a spherical cavity formed by the combination of the first hemispherical groove and the second hemispherical groove is used to accommodate a ball buckle, and a columnar cavity formed by the combination of the first semi-through groove and the second semi-through groove is used to accommodate the upper part of the lifting rod, and the cross-sectional area of ​​the columnar cavity is smaller than the cross-sectional area of ​​the lifting rod.

[0009] Furthermore, the movable base unit also includes four hole groups opened in a circular array on the surface of the furnace lining, each hole group includes a screw hole and a matching hole, a screw rod is installed in the screw hole, the lifting rod is installed in the matching hole and connected to the outer peripheral side of the screw rod, and the matching hole slides along the axis direction of the matching hole together with the screw rod.

[0010] Furthermore, an annular frame is formed on the upper part of the outer peripheral side of the screw rod, a transverse piece is fixed on the outer peripheral side of the lifting rod, and a clamping ring part is formed on one end of the transverse piece for clamping between the screw rod head and the annular frame.

[0011] Furthermore, the black body plate is in the shape of an octagonal prism.

[0012] Furthermore, the four sides of the black body plate with the first hemispherical groove are respectively provided with a plurality of slots, and the side of the side block with the second hemispherical groove is also provided with a plurality of insertion rods respectively matching with the slots.

[0013] Furthermore, all the solid parts are made of refractory ceramics.

[0014] The beneficial effects of this technical solution are:

[0015] 1. The orientation of the black body plate can be adjusted through the adjustable lifting rod structure and the matching structure of the ball buckle and spherical cavity. There is no need to manufacture black body elements of various specifications, and the installation difficulty is low.

[0016] 2. Reflect heat rays to the workpiece through the black body plate to save heat energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram showing an embodiment of the present application being installed as a whole on a furnace lining is shown.

[0018] Figure 2 A partial stereoscopic view of a movable base unit according to an embodiment of the present application is shown.

[0019] Figure 3 A partial exploded view of the movable base unit of an embodiment of the present application is shown.

[0020] Figure 4 A stereoscopic view of the directional reflection unit of the embodiment of the present application without the side blocks is shown.

[0021] Figure 5 A stereoscopic view from the side and bottom is shown when the directional reflection unit of the embodiment of the present application is equipped with side blocks. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0023] like Figure 1~Figure 5 A black body protection structure in a heating furnace is shown, comprising a movable base unit 1 and a directional reflection unit 2, and all of the solid parts are made of refractory ceramics.

[0024] The movable base unit 1 is arranged on the furnace lining 3 of the heating furnace. The movable base unit 1 includes four hole groups opened in a circular array on the surface of the furnace lining 3, each hole group includes a screw hole 11 and a matching hole 12. Specifically, the four screw holes 11 are arranged along a larger circular array, and the four matching holes 12 are arranged along a smaller circular array. A screw rod 13 is assembled in the screw hole 11. In this embodiment, the screw rod 13 adopts a hexagonal screw rod, and an annular frame 14 is formed on the upper part of the outer peripheral side of the rod body of the screw rod 13. A lifting rod 15 is assembled in the matching hole 12. A ball buckle 16 is provided on the upper end of the lifting rod 15. A cross piece 17 is fixed on the outer peripheral side of the lifting rod 15, and a clamping ring portion 18 is formed at one end of the cross piece 17 for clamping between the head of the screw rod 13 and the annular frame 14.

[0025] The directional reflection unit 2 is arranged on the movable base unit 1. The directional reflection unit 2 includes a black body plate 21 in the shape of an octagonal prism, the upper end surface of which is sprayed with black body paint, and the four sides of the black body plate 21 along the circumferential array are respectively provided with first hemispherical grooves 22, and the lower end of the first hemispherical groove 22 extends to a first semi-through groove 23 that penetrates to the outside of the lower end of the black body plate 21. The four sides of the black body plate 21 having the first hemispherical groove 22 are also respectively provided with a plurality of slots 24, and the four sides are respectively equipped with side blocks 25, and one side of the side block 25 is provided with a first semi-through groove 23 that is symmetrically arranged with the first hemispherical groove 22. A second hemispherical groove 26 is disposed, and a second half-through groove 27 is extended from the lower end of the second hemispherical groove 26 to penetrate to the outside of the lower end of the side block 25. The side of the side block 25 on which the second hemispherical groove 26 is opened is also provided with a plurality of plug rods 28 respectively matching the slots 24. The spherical cavity formed by the first hemispherical groove 22 and the second hemispherical groove 26 is used to accommodate the ball buckle 16. The columnar cavity formed by the first half-through groove 23 and the second half-through groove 27 is used to accommodate the upper part of the lifting rod 15, and the cross-sectional area of ​​the columnar cavity is smaller than the cross-sectional area of ​​the lifting rod 15, so that the black body plate 21 can be tilted.

[0026] Working method:

[0027] By adjusting the depth of the lifting rod 15 inserted into the matching hole 12, the distance between the ball buckle 16 and the surface of the furnace lining 3 can be adjusted, so that the angle of the black body plate 21 can be adjusted. In addition to the fixing method of the screw rod 13, after the angle is determined, an adhesive can be hung between the directional reflection unit 2 and the surface of the furnace lining 3 to stabilize the black body furnace protection structure of the present application. The adhesive can be a mixture of high-temperature cement and hollow alumina balls.

[0028] For the entire furnace lining 3, a plurality of black body furnace protection structures of the present application can be installed in large quantities in a staggered manner.

[0029] The above are only some of the embodiments listed in this application and are not intended to limit this application.

Claims

1. A black body protection structure in a heating furnace, characterized in that: include: A movable base unit (1) disposed on a furnace lining (3) of a heating furnace comprises four lifting rods (15) inserted into the furnace lining (3) in a circumferential array, wherein the depth of insertion of the lifting rods (15) into the furnace lining (3) is adjustable, and a ball buckle (16) is provided at the upper end of the lifting rod (15); The directional reflection unit (2) is arranged on the movable base unit (1), and comprises a black body plate (21) in the shape of a polygonal column, the upper end surface of which is sprayed with black body paint, four side surfaces of the black body plate (21) along the circumference array are respectively provided with first hemispherical grooves (22), and the lower end thereof is extended with a first semi-through groove (23) penetrating to the outside of the lower end of the black body plate (21), and the four side surfaces of the black body plate (21) having the first hemispherical groove (22) are respectively equipped with side blocks (25), and one side surface of the side block (25) is provided with A second hemispherical groove (26) is symmetrically arranged with the first hemispherical groove (22), and a second half-through groove (27) extends from its lower end and passes through the lower end of the side block (25). The first hemispherical groove (22) and the second hemispherical groove (26) form a spherical cavity for accommodating the ball buckle (16). The first half-through groove (23) and the second half-through groove (27) form a columnar cavity for accommodating the upper part of the lifting rod (15), and the cross-sectional area of ​​the columnar cavity is smaller than the cross-sectional area of ​​the lifting rod (15).

2. The black body protection structure in the heating furnace according to claim 1 is characterized in that: The movable base unit (1) further comprises four hole groups formed in a circumferential array on the surface of the furnace lining (3), each hole group comprising a screw hole (11) and a matching hole (12), a screw rod (13) being mounted in the screw hole (11), a lifting rod (15) being mounted in the matching hole (12) and connected to the outer peripheral side of the screw rod (13), and the matching hole (12) sliding along the axis direction of the matching hole (12) together with the screw rod (13).

3. The black body protection structure in the heating furnace according to claim 2 is characterized in that: An annular frame (14) is formed on the upper part of the outer peripheral side of the screw rod (13), a transverse piece (17) is fixed on the outer peripheral side of the lifting rod (15), and a clamping ring portion (18) is formed at one end of the transverse piece (17) for clamping between the head of the screw rod (13) and the annular frame (14).

4. The black body protection structure in a heating furnace according to claim 1, characterized in that: The black body plate (21) is in the shape of an octagonal prism.

5. The black body protection structure in a heating furnace according to claim 1, characterized in that: The four sides of the black body plate (21) having the first hemispherical groove (22) are respectively provided with a plurality of slots (24), and the side of the side block (25) having the second hemispherical groove (26) is also provided with a plurality of insertion rods (28) respectively matching the slots (24).

6. The black body protection structure in a heating furnace according to claim 1, characterized in that: All solid parts are made of refractory ceramics.

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