Heating furnace with Y-shaped anchoring nails

Abstract

The utility model relates to the technical field of heating furnaces, in particular to a heating furnace with a Y-shaped anchoring nail, which comprises a furnace wall, the Y-shaped anchoring nail and a heat preservation structure positioned on the inner wall of the furnace wall, the heat preservation structure comprises a backing layer and a pouring layer which are sequentially arranged inwards, the Y-shaped anchoring nail comprises a straight nail section and a V nail section, and two ends of the straight nail section are respectively connected with the inner wall of the furnace wall and the V nail section. The straight nail section penetrates through the backing layer, and the V-shaped nail section extends into the pouring layer, so that the backing layer and the pouring layer are fixed on the inner wall of the furnace wall; the rod body of the V-shaped nail section is obliquely arranged, and the inward inclination angle is gradually increased; and the rod body of the V-shaped nail section is wave-shaped. Compared with the prior art, the rod body of the V-shaped nail section is obliquely arranged, and the inward inclination angle is gradually enlarged; the rod body of the V-shaped nail section is in a wave shape, so that the contact area and friction force between the V-shaped nail and the castable are increased, and the fixing effect on the castable is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heating furnace, concretely relates to a kind of heating furnace with Y type anchor nail. BACKGROUND

[0002] Castable lining has been widely used in the thermal insulation of various parts of industrial furnace. To prevent the lining from cracking and falling off, anchor nails need to be embedded in the lining. Commonly used anchor nails are mostly V-shaped or Y-shaped. For example, the Chinese patent document with publication number CN219186820U discloses a detachable anchor nail and a reaction vessel provided with the same. The detachable anchor nail comprises a first anchor nail assembly, a second anchor nail assembly and a nut. The first anchor nail assembly comprises a first rod-shaped part and a welded part extending from one of the free ends of the first rod-shaped part. The second anchor nail assembly comprises a second rod-shaped part and a V-shaped head welded to one of the free ends of the second rod-shaped part. One of the other free ends of the first rod-shaped part and the other free end of the second rod-shaped part is welded to the nut, and the other free end is provided with a threaded head matched with the nut, so as to facilitate pouring and repair.

[0003] For example, the Chinese patent document with publication number CN204438805U discloses an anchor nail for castable lining of industrial furnace, in particular a modular anchor nail suitable for lining of different thickness and different layers. The thickness and number of layers of castable lining in different parts of the industrial furnace are different, so the specifications of the anchor nails are variable. To solve the above problems, the utility model provides a modular anchor nail suitable for lining of different thickness and different layers, which comprises an L-shaped metal stud, a nut and a heat preservation nail. The transverse rod of the metal stud is fixed on the wall plate of the industrial furnace, and the longitudinal rod of the metal stud is provided with external threads on which a nut is screwed. The nut is fixed with heat preservation nails on the corresponding sides.

[0004] As known from the above, to improve thermal efficiency, a heat preservation structure is usually used in the inner wall of the furnace wall. The heat preservation structure is composed of a backing layer and a cast layer. In the low-temperature structure, there can be only a cast layer, which is fixed by V-shaped anchor nails. The backing layer is divided into single-layer, double-layer, triple-layer, quadruple-layer, quintuple-layer and sextuple-layer structures. The backing layer and the cast layer structure are fixed by Y-shaped anchor nails, which are connected by a straight nail segment and a V-shaped nail segment. When installing the Y-shaped anchor nail, the straight nail segment is installed first, then the backing layer is installed in sequence, followed by the installation of the V-shaped nail segment, and finally the cast layer is installed.

[0005] The straight nail segment of the existing Y-shaped nail penetrates through the backing layer, and the fixing effect on the backing layer is weak. The V-shaped nail segment is generally smooth in surface, and the friction between the castable and the V-shaped nail is small, so the fixing effect on the castable is weak. SUMMARY

[0006] In view of all or part of the above technical problems existing in the prior art, the utility model provides a heating furnace with Y type anchor nail.

[0007] In order to realize the above object, the utility model provides the following technical scheme:

[0008] Provide a kind of heating furnace with Y type anchor nail, including furnace wall, Y type anchor nail and the heat preservation structure located furnace wall inner wall, heat preservation structure includes sequentially inward backing layer and pouring layer, Y type anchor nail includes straight nail section and V nail section, the two ends of straight nail section are connected furnace wall inner wall and V nail section respectively, straight nail section is provided with backing layer, V nail section extends to pouring layer, so that backing layer and pouring layer are fixed to furnace wall inner wall;It is characterized by: the rod body of V nail section is arranged obliquely, and inward inclination angle is graded expansion;The rod body of V nail section is in wave shape.

[0009] As further optional scheme, the rod body of V nail section is provided with positioning protrusion.

[0010] As further optional scheme, multiple positioning protrusions are distributed along the length direction of the rod body of V nail section.

[0011] As further optional scheme, positioning protrusion is welded and fixed to the rod body of V nail section, or is integrally casted into shape with each other.

[0012] As further optional scheme, straight nail section and V nail section are mutually welded and fixed, threadedly fixed or fixed via locking member.

[0013] As further optional scheme, the connecting place of straight nail section and V nail section is located at the junction of backing layer and pouring layer.

[0014] As further optional scheme, the two rod bodies of V nail section facing each other: first grade flared angle is 3 ° ~ 27 °, and second grade flared angle is 61 ° ~ 150 °.

[0015] As further optional scheme, the opening angle of adjacent two sections of the wave shape of the rod body of V nail section is 90 ° ~ 175 °.

[0016] As further optional scheme, the rod body of V nail section is in three-prong type.

[0017] As further optional scheme, the rod body of V nail section is in four-prong type.

[0018] The utility model has the advantages of:

[0019] Compared with prior art, the rod body of V nail section is arranged obliquely, and inward inclination angle is graded expansion;The rod body of V nail section is in wave shape, increases the contact area and friction force of V type nail and pouring material, and increases the fixing effect to pouring material. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings. However, the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0021] Figure 1 This is a front view of the Y-shaped anchor in the embodiment.

[0022] Figure 2 This is a left view of the Y-shaped anchor in the embodiment.

[0023] Figure 3 This is a schematic diagram illustrating the combination of the thermal insulation structure and the Y-shaped anchor in the embodiment.

[0024] Figure 4 This is a front view of a second embodiment of the Y-shaped anchor.

[0025] Figure 5 Left view of a second embodiment of the Y-shaped anchor.

[0026] Figure 6 This is a front view of the third embodiment of the Y-type anchor.

[0027] Figure 7 This is a left view of a third embodiment of a Y-shaped anchor.

[0028] Figure 8 This is a front view of the fourth embodiment of the Y-shaped anchor.

[0029] Figure label:

[0030] Backing layer 1, casting layer 2; straight nail section 3, V nail section 4, locking piece 5, positioning protrusion 6. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0032] This embodiment describes a heating furnace with Y-shaped anchor pins, such as... Figures 1 to 3 As shown, the structure includes a furnace wall (not shown), Y-shaped anchors, and an insulation structure located on the inner wall of the furnace wall. The insulation structure includes a backing layer 1 and a cast-in-place layer 2 facing inwards. The Y-shaped anchors include a straight nail section 3 and a V-nail section 4. The two ends of the straight nail section 3 are connected to the inner wall of the furnace wall and the V-nail section 4, respectively. The straight nail section 3 passes through the backing layer 1, and the V-nail section 4 extends into the cast-in-place layer 2, thereby fixing the backing layer 1 and the cast-in-place layer 2 to the inner wall of the furnace wall.

[0033] In this embodiment, the rod body of the V-shaped nail segment 4 is arranged obliquely and the inward inclination angle is graded to expand, Figures 1 to 3 The middle part is divided into two levels of inclination, i.e. the two rod bodies of the V-shaped nail segment 4 are arranged oppositely, the first level of the expanded angle a near the straight nail segment 3 is 3°-27°, preferably 5° or 7°. The second level of the expanded angle β is 61°-150°, preferably 65°, 70° or 90°.

[0034] The rod body of the V-shaped nail segment 4 is in a wave shape, and the opening angle A of the adjacent two sections of the wave shape is 90°-175°, preferably 115°, 120°, 125° or 130°. Figure 1 Figure 2 As can be seen by comparison, Figure 1 In the V-shaped nail segment 4, the two rod bodies are arranged oppositely, and the wave shape of each rod body is curved front and back (perpendicular to the paper). From Figure 3 It can be seen that the different Y-shaped anchor nails in the heat preservation structure are arranged in different directions.

[0035] In this embodiment, the straight nail segment 3 and the V-shaped nail segment 4 are fixed via the locking piece 5, and in practice, they can be fixed by welding or screwing. The bottom of the V-shaped nail segment 4 has a flat section which is perpendicular to the straight nail segment 3, facilitating the connection.

[0036] In this embodiment, the connection between the straight nail segment 3 and the V-shaped nail segment 4 is located at the junction of the backing layer 1 and the pouring layer 2. The length of the straight nail segment 3 is shortened to be flush with the thickness of the backing layer 1, increasing the fixing effect on the backing layer 1.

[0037] As shown in Figure 4 Figure 5 The second embodiment of the Y-shaped anchor nail is shown in the schematic view, and the rod body of the V-shaped nail segment 4 is provided with a positioning protrusion 6. The friction between the V-shaped nail segment 4 and the castable is increased, and the fixing effect on the castable is increased. Specifically, a plurality of positioning protrusions 6 are distributed along the length direction of the rod body of the V-shaped nail segment 4. The positioning protrusions 6 are fixed to the rod body of the V-shaped nail segment 4 by welding, or are integrally casted.

[0038] As shown in Figure 6 Figure 7 The third embodiment of the Y-shaped anchor nail is shown in the schematic view, and the rod body of the V-shaped nail segment 4 is in a three-prong type, i.e. three rod bodies extend in different directions.

[0039] As shown in Figure 8 The fourth embodiment of the Y-shaped anchor nail is shown in the schematic view, and the rod body of the V-shaped nail segment 4 is in a four-prong type, i.e. four rod bodies extend in different directions and are arranged oppositely.

[0040] ​​​In the description of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, rather than all the embodiments. The components of the utility model embodiments described and shown in the drawings here can be arranged and designed in various different configurations.

[0041] Therefore, the above detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0042] In the description of the utility model, it should be pointed out that the terms "middle", "upper", "lower", "horizontal", "internal", "external" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the product in use. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only used for differentiation, and cannot be understood as indicating or implying relative importance.

[0043] In the description of the utility model, it should be pointed out that unless otherwise explicitly specified and limited, the terms "set", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected. It can be mechanically connected, or electrically connected. It can be directly connected, or indirectly connected through an intermediate medium. It can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

Claims

1. A heating furnace with Y-shaped anchors, comprising a furnace wall, Y-shaped anchors, and an insulation structure located on the inner wall of the furnace wall. The insulation structure includes a backing layer and a cast-in-place layer arranged sequentially inwards. The Y-shaped anchors include a straight anchor section and a V-shaped anchor section. The two ends of the straight anchor section are respectively connected to the inner wall of the furnace wall and the V-shaped anchor section. The straight anchor section passes through the backing layer, and the V-shaped anchor section extends into the cast-in-place layer, thereby fixing the backing layer and the cast-in-place layer to the inner wall of the furnace wall. Its characteristic is: The V-nail segment has an inclined arrangement of the rod body, and the inward inclination angle increases in stages; the V-nail segment has a wavy shape.

2. A heating furnace with Y-shaped anchor pins according to claim 1, characterized in that: The V-nail segment has a positioning protrusion on its rod.

3. A heating furnace with Y-shaped anchoring nails according to claim 2, characterized in that: The multiple positioning protrusions are distributed at intervals along the length of the rod of the V-nail segment.

4. A heating furnace with Y-shaped anchoring nails according to claim 2, characterized in that: The positioning protrusions are welded and fixed to the rod body of the V-nail segment, or they are cast as a single piece.

5. A heating furnace with Y-shaped anchor pins according to claim 1, characterized in that: The straight nail segment and the V-nail segment are fixed to each other by welding, threading, or locking.

6. A heating furnace with Y-shaped anchor pins according to claim 1, characterized in that: The connection between the straight nail segment and the V-nail segment is located at the junction of the backing layer and the cast-in-place layer.

7. A heating furnace with Y-shaped anchor pins according to claim 1, characterized in that: The two opposing rods of the V-nail segment have a first-stage flare angle of 3° to 27° and a second-stage flare angle of 61° to 150°.

8. A heating furnace with Y-shaped anchor pins according to claim 1, characterized in that: The opening angle between adjacent sections of the V-nail segment is 90° to 175°.

9. A heating furnace with Y-shaped anchor pins according to claim 1, characterized in that: The V-shaped rod has a three-pronged design.

10. A heating furnace with Y-shaped anchor pins according to claim 1, characterized in that: The V-nail section has a four-claw shape.

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