A tunnel-type roasting furnace mouth structure

Abstract

The utility model discloses a purpose at providing a kind of tunnel type baking furnace mouth structure, to solve the problem of existing tunnel type baking furnace mouth easy to break failure. The present application includes base, external furnace wall steel structure and internal refractory layer, furnace wall steel structure and internal refractory layer between being equipped with castable layer, and multiple interval settings expansion joint are equipped in the middle of castable layer, and the front end and side of castable layer are embedded with anchor, and anchor is connected with furnace door connecting frame and furnace wall steel structure respectively. Compared with prior art, the original high-alumina standard brick masonry is changed to high-alumina low cement pouring in the present application, and expansion joint is reserved, so even in the case of heating or mechanical scratch, it is also not easy to break. In addition, stainless steel anchor is embedded on the steel structure of the mouth part before pouring, which can increase the mechanical strength and deformation resistance of the mouth part.

Description

Technical Field

[0001] This utility model relates to a roasting furnace, specifically a roasting furnace with a double exhaust flue. Background Technology

[0002] Tunnel-type roasting furnaces are crucial continuous heat treatment equipment in industrial production. Existing tunnel-type roasting furnaces use high-alumina standard bricks for the furnace opening. After prolonged use, these high-alumina standard bricks at the furnace opening frequently crack and fail due to mechanical abrasion and thermal shock, affecting the furnace's usability. Utility Model Content

[0003] The purpose of this invention is to provide a tunnel-type roasting furnace opening structure to solve the problem that the opening of existing tunnel-type roasting furnaces is prone to breakage and failure.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a tunnel-type roasting furnace opening structure, including a base, an outer furnace wall steel structure and an inner refractory layer, a castable layer between the furnace wall steel structure and the inner refractory layer, and a plurality of spaced expansion joints in the middle of the castable layer, with anchors pre-embedded at the front end and sides of the castable layer, and the anchors being connected to the furnace door connecting frame and the furnace wall steel structure respectively.

[0005] The furnace door connecting frame is connected to the furnace door column, and the furnace door column is connected to the furnace door track.

[0006] The base is equipped with a trolley running track.

[0007] The base is equipped with a trolley sealing slide, and the trolley sealing slide is equipped with a sealing groove.

[0008] Compared with existing technologies, this application replaces the original high-alumina standard brick masonry with high-alumina low-cement casting and reserves expansion joints, so that it is not easy to crack even under heating or mechanical scratches. In addition, stainless steel anchors are pre-embedded in the steel structure at the furnace mouth before casting, which can increase the mechanical strength and deformation resistance of the furnace mouth area. Attached Figure Description

[0009] Figure 1 This is the front view of the present invention.

[0010] Figure 2 This is a top view of the present invention.

[0011] Attached figures and annotations: 1. Castable layer; 2. Base; 3. Expansion joint; 4. Internal refractory layer; 5. Trolley sealing slide; 6. Furnace wall steel structure; 7. Furnace door connecting frame; 8. Furnace door column; 9. Furnace door track; 10. Anchor. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0013] like Figure 1 and 2 As shown, this utility model discloses a tunnel-type roasting furnace opening structure, including a base 2, an outer furnace wall steel structure 6 and an inner refractory layer 4. A castable layer 1 is provided between the furnace wall steel structure 6 and the inner refractory layer 4, and a plurality of spaced expansion joints 3 are provided in the middle of the castable layer 1 (one is provided every 1~1.5m). Anchors 10 are pre-embedded at the front end and side of the castable layer 1, and the anchors 10 are respectively connected to the furnace door connecting frame 7 and the furnace wall steel structure 6.

[0014] This utility model uses castable refractory and expansion joints to form a castable refractory layer 1, which solves the problems of low durability and unreliability of high-alumina standard brick masonry at the furnace mouth of tunnel-type roasting furnace, and ensures low failure rate and low maintenance rate of the equipment.

[0015] The furnace door connecting frame 7 is connected to the furnace door column 8, and the furnace door column 8 is connected to the furnace door track 9. In use, the furnace door is moved up and down along the furnace door track 9 by a lifting device.

[0016] The base 2 is equipped with a trolley running track.

[0017] The base 2 has a trolley sealing slide 5 on its side wall. The trolley sealing slide 5 has a sealing groove. When the trolley runs along the track, the two sides of the trolley cooperate with the sealing groove to achieve a sealing effect.

[0018] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A tunnel-type roasting furnace opening structure, comprising a base (2), an external furnace wall steel structure (6), and an internal refractory layer (4), characterized in that: A castable layer (1) is provided between the furnace wall steel structure (6) and the internal refractory layer (4), and multiple spaced expansion joints (3) are provided in the middle of the castable layer (1). Anchors (10) are pre-embedded at the front end and side of the castable layer (1), and the anchors (10) are connected to the furnace door connecting frame (7) and the furnace wall steel structure (6) respectively.

2. The tunnel-type roasting furnace opening structure according to claim 1, characterized in that: The furnace door connecting frame (7) is connected to the furnace door column (8), and the furnace door column (8) is connected to the furnace door track (9).

3. The tunnel-type roasting furnace opening structure according to claim 1, characterized in that: The base (2) is equipped with a trolley running track.

4. The tunnel-type roasting furnace opening structure according to claim 3, characterized in that: The base (2) is provided with a trolley sealing slide (5), and the trolley sealing slide (5) is provided with a sealing groove.

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