Observation window of annealing kiln

Abstract

The utility model discloses an annealing kiln observation window, which relates to the technical field of annealing kiln observation equipment, and comprises a kiln body and a sealing plug arranged on the kiln body, the sealing plug is provided with a step, the kiln body is provided with an observation hole clamped with the sealing plug, and the step is provided with a heat insulation layer. The sealing plug is clamped in the observation hole, then the observation hole is sealed, the heat insulation layer on the step on the sealing plug is tightly attached to the observation hole, multi-layer sealing work is achieved, heat is prevented from flowing out of the contact position of the sealing plug and the observation hole, heat preservation work of the kiln body is achieved, and practicability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of annealing furnace observation equipment, in particular to an annealing furnace observation window. Background Art

[0002] At present, the observation windows of the insulation area of ​​the annealing furnace on the market all adopt a sealing structure, which cannot effectively reduce heat loss, resulting in the temperature outside the observation window being higher than the temperature outside the shell, which is not conducive to the temperature control of the annealing furnace. The observation window and the shell are also connected by steel plates, which have a fast heat conduction speed.

[0003] For example, the publication number CN208671673U disclosed an annealing kiln for producing jade on March 29, 2019, including a kiln chamber, the outer walls on both sides of the kiln chamber are respectively provided with a feed port and a discharge port, and the top inner wall of the kiln chamber is bolted with three isolation seats, an outer wall at one end of the kiln chamber is bolted with an observation window, and the inner wall at the bottom of the kiln chamber is bolted with equidistantly distributed heating lamps on one side near the feed port, a connecting opening is provided on the inner wall at the bottom of the kiln chamber near the discharge port, and baffles are bolted on both sides of the connecting opening of the inner wall at the bottom of the kiln chamber. When the above-mentioned observation window is in use, heat easily flows out of the annealing kiln, and the practicality is poor. Summary of the invention

[0004] The utility model aims to provide an annealing furnace observation window from which heat is not easy to flow out. The utility model prevents heat from flowing out of the observation hole of the annealing furnace through a stepped surface heat insulation layer on the sealing plug, thereby increasing the heat insulation effect of the observation window and having higher practicality.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model to solve its technical problem is: an annealing furnace observation window, including a kiln body and a sealing plug arranged on the kiln body, the sealing plug is provided with a step, the kiln body is provided with an observation hole engaged with the sealing plug, and the step is provided with an insulating layer.

[0006] As a further solution of the utility model, heat-insulating cotton is arranged in the sealing plug.

[0007] As a further solution of the utility model, the outer side of the sealing plug is covered with a stainless steel plate, and the groove wall of the observation hole is provided with a stainless steel plate.

[0008] As a further solution of the present invention, the cross-section of the observation hole is stepped.

[0009] As a further solution of the utility model, a transverse plate is provided on the sealing plug, and a handle is provided on the transverse plate.

[0010] As a further solution of the utility model, the heat insulation layer is nano-ceramic fiber paper, and the nano-ceramic fiber paper is bonded to the sealing plug.

[0011] As a further solution of the utility model, a heat insulation layer is provided on the transverse plate.

[0012] The beneficial effects of the utility model are:

[0013] The sealing plug is stuck in the observation hole to seal the observation hole. The heat insulation layer on the step of the sealing plug is in close contact with the observation hole to achieve multi-layer sealing, preventing heat from flowing out from the contact position between the sealing plug and the observation hole, thereby achieving heat preservation of the kiln body and having higher practicality.

[0014] A horizontal plate is provided on the sealing plug, and a handle is provided on the horizontal plate. The handle on the horizontal plate is convenient for users to pick up and move the entire sealing plug. A heat insulation layer is provided on the horizontal plate to further prevent heat from flowing out of the opening of the observation hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the observation window of the annealing furnace of the utility model.

[0016] Figure 2 for Figure 1 Schematic diagram of the sealing plug structure.

[0017] In the attached figure: 1-kiln body, 2-observation hole, 3-sealing plug, 4-step, 5-horizontal board, 6-handle, 7-insulation cotton, 8-insulation layer. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0020] like Figure 1-2 As shown, the annealing furnace observation window includes a kiln body 1 and a sealing plug 3 arranged on the kiln body 1, the sealing plug 3 is provided with a step 4, the kiln body 1 is provided with an observation hole 2 engaged with the sealing plug 3, the observation hole 2 is used to observe the inside of the kiln body, the step 4 is provided with an insulating layer 8, the insulating layer 8 prevents the heat loss in the kiln body 1, and in this embodiment, two layers of steps 4 are provided on the sealing plug 3.

[0021] When in use, the sealing plug 3 is pulled out from the observation hole 2 on the kiln body 1, and the situation inside the kiln body 1 is observed through the observation hole 2. When not observing, the sealing plug 3 is stuck in the observation hole 2 to seal the observation hole 2. The heat insulating layer 8 on the step 4 on the sealing plug 3 is in close contact with the observation hole to achieve multi-layer sealing and prevent heat from flowing out from the contact position between the sealing plug 3 and the observation hole 2, thereby achieving heat preservation of the kiln body 1 and having higher practicality.

[0022] Specifically, refer to Figure 1 A heat-insulating cotton 7 is arranged inside the sealing plug 3, thereby increasing the sealing performance of the entire sealing plug 3.

[0023] The outer side of the sealing plug 3 is covered with a stainless steel plate, and the groove wall of the observation hole 2 is provided with a stainless steel plate, so that the sealing plug 3 and the observation hole 2 can be conveniently connected by the stainless steel plate.

[0024] The cross section of the observation hole 2 is stepped, thereby ensuring that the sealing plug 3 provided with the step 4 can be stably engaged in the observation hole 2 .

[0025] A horizontal plate 5 is provided on the sealing plug 3, and a handle 6 is provided on the horizontal plate 5. The handle 6 on the horizontal plate 5 is convenient for the user to pick up and move the entire sealing plug 3. In this embodiment, the horizontal plate 5 is a stainless steel plate, and the horizontal plate 5 is welded to the stainless steel plate on the surface of the sealing plug 3, and the handle 6 is welded to the horizontal plate 5.

[0026] The heat insulation layer 8 is nano-ceramic fiber paper, which is bonded to the sealing plug 3, thereby realizing convenient installation of the nano-ceramic fiber paper.

[0027] A heat insulating layer 8 is provided on the transverse plate 5 to further prevent heat from flowing out from the opening of the observation hole 2 .

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An annealing furnace observation window, comprising a kiln body (1) and a sealing plug (3) arranged on the kiln body (1), characterized in that: The sealing plug (3) is provided with a step (4), the kiln body (1) is provided with an observation hole (2) engaged with the sealing plug (3), and the step (4) is provided with a heat insulation layer (8).

2. The annealing furnace observation window according to claim 1, characterized in that: The sealing plug (3) is provided with heat-insulating cotton (7).

3. The annealing furnace observation window according to claim 1, characterized in that: The outer side of the sealing plug (3) is covered with a stainless steel plate, and the groove wall of the observation hole (2) is provided with a stainless steel plate.

4. The annealing furnace observation window according to claim 3, characterized in that: The cross section of the observation hole (2) is stepped.

5. The annealing furnace observation window according to any one of claims 1 to 4, characterized in that: The sealing plug (3) is provided with a transverse plate (5), and the transverse plate (5) is provided with a handle (6).

6. The annealing furnace observation window according to claim 5, characterized in that: The heat insulation layer (8) is nano-ceramic fiber paper, and the nano-ceramic fiber paper is bonded to the sealing plug (3).

7. The annealing furnace observation window according to claim 6, characterized in that: A heat insulation layer (8) is provided on the transverse plate (5).

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