Protective component for side oven door knife edge of coke oven machine
By designing protective components of heat insulation and connectors on the edge of the furnace door of the coke oven machine side, the problem of easy fatigue and fracture of the knife edge is solved, and the effect of high temperature resistance and reducing maintenance frequency is achieved.
Patent Information
- Application Number
- CN202422151337.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-09-02
AI Technical Summary
The edge of the door knife of the side of the coke oven machine is prone to fatigue and breaking under high temperature and alternating load, resulting in poor sealing, affecting the sealing and environmental pollution of the coke oven carbonization room, and at the same time increasing the labor intensity of maintenance personnel.
A protective member including a heat insulation member and a connecting member is designed, fixed to the upper brick groove of the furnace door on the machine side by welding, and an isolation protection is formed using 0Cr25Ni20 heat-resistant stainless steel material. Installation holes are provided on the connecting member to fix the protective member, and a layer of refractory material is used for further protection.
It extends the service life of the furnace door knife edge, reduces the direct burning of the knife edge by high-temperature open flame, reduces the maintenance frequency and workload of personnel, and maintains the coordination between the furnace frame and the carbonization chamber.
Smart Images

Figure CN223214038U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of furnace protection components, and in particular to a protection component for the knife edge of a coke oven machine side furnace door. Background Art
[0002] The knife edge of the coke oven machine side furnace door is the basic support for the various components of the furnace door body. The fit between the furnace door and the furnace frame determines the airtightness of the coke oven carbonization chamber. If the furnace door is not tight, under positive pressure, the raw coal gas inside the coke oven carbonization chamber will overflow along the gap, affecting the coke oven gas output and the recovery of gas deep processing products. The escape of raw coal gas will pollute the environment and cause chronic burning of the furnace protection iron parts, resulting in a decline in the quality of the coke oven body and shortening the service life of the coke oven.
[0003] Since the working temperature of the furnace door knife edge is above 1000℃ and it is subject to alternating loads, it is prone to fatigue fracture. It is one of the vulnerable parts in the furnace door components. The damaged parts are mainly concentrated in the small furnace door area, so the furnace door knife edge needs to be frequently inspected, which increases the labor intensity of the maintenance personnel and affects production efficiency. Utility Model Content
[0004] The purpose of the embodiment of the present application is to provide a protective component for the knife edge of the coke oven machine side furnace door, so that the knife edge has a layer of isolation protection, extending the service life of the furnace door knife edge and reducing the workload of maintenance personnel.
[0005] The present application provides a protective component for the knife edge of a coke oven door, which adopts the following technical solutions:
[0006] A protective component for the knife edge of a coke oven machine side furnace door comprises a heat insulating member and a connecting member, wherein the connecting member is fixedly sleeved on the heat insulating member, the heat insulating member is arranged on the upper brick groove of the machine side furnace door, and the connecting member is fixedly connected to the upper brick groove of the machine side furnace door.
[0007] Preferably, the connecting member and the thermal insulation member are welded.
[0008] Preferably, the connecting member is provided with a plurality of first mounting holes, and the first mounting holes are distributed on both sides and the lower end of the connecting member.
[0009] Preferably, a plurality of second mounting holes are provided on the connecting member, and the second mounting holes are distributed at the upper end of the connecting member.
[0010] Preferably, the upper portion of the connecting piece is chamfered.
[0011] Preferably, a refractory material layer is cast between the connecting piece and the small furnace door body.
[0012] Preferably, the thermal insulation member and the connecting member are both made of 0Cr25Ni20 heat-resistant stainless steel.
[0013] Compared with the prior art, the present invention has the following advantages:
[0014] The furnace door knife edge protection component designed in the present application has the advantages of simple structure, low production cost and easy implementation. The protection component acts on the upper brick groove part of the machine side furnace door. When the furnace door is assembled, the heat insulation and connecting parts are first matched with the upper brick groove of the machine side furnace door, and then installed on the furnace door knife edge. Due to the structure of the protection component, the small furnace door base on the furnace door knife edge is protected at the same time, so that it will not affect the operation of the vehicle door machine during actual use, and will not change the degree of coordination between the furnace frame and the carbonization chamber. Due to the existence of this protection component, the knife edge has a layer of isolation protection, which minimizes the direct burning of the knife edge by high-temperature open flames, extends the service life of the furnace door knife edge, and reduces the workload of maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.
[0016] Figure 1 It is a schematic structural diagram of some embodiments of the present utility model;
[0017] Figure 2 It is a front view of some embodiments of the utility model;
[0018] Figure 3 Schematic diagram of the connection structure between the protective member and the upper brick groove of the machine-side furnace door in some embodiments of the present invention;
[0019] Figure 4 This is a disassembled view of the protective component and the upper brick groove of the machine-side furnace door in some embodiments of the present invention.
[0020] The reference numerals are:
[0021] 1. Thermal insulation; 2. Connecting piece; 3. Brick groove on the upper part of the furnace door on the machine side; 4. First mounting hole; 5. Second mounting hole. DETAILED DESCRIPTION
[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.
[0023] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.
[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.
[0025] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended solely to facilitate the description of this application and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0026] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.
[0027] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.
[0028] Example
[0029] like Figure 1-4 As shown, the protective component for the knife edge of the coke oven machine side furnace door described in the embodiment of the present application includes a heat insulating member 1 and a connecting member 2. The connecting member 2 is fixedly mounted on the heat insulating member 1, and the heat insulating member 1 is arranged on the upper brick groove 3 of the machine side furnace door. The connecting member 2 is fixedly connected to the upper brick groove 3 of the machine side furnace door. The protective component acts on the upper brick groove 3 of the machine side furnace door. When the furnace door is assembled, the heat insulating member 1 and the connecting member 2 are first matched with the upper brick groove 3 of the machine side furnace door, and then installed on the knife edge of the furnace door. Due to the structure of the protective component, the small furnace door base on the knife edge of the furnace door is protected at the same time, so that it will not affect the operation of the vehicle door-taking machine during actual use, and will not change the degree of fit between the furnace frame and the carbonization chamber. Due to the existence of this protective component, the knife edge has a layer of isolation protection, which minimizes the direct burning of the knife edge by high-temperature open flame, extends the service life of the furnace door knife edge, and reduces the workload of maintenance personnel.
[0030] In this embodiment, the connecting member 2 and the thermal insulation member 1 are welded. Welding has the advantages of good connection performance, high structural strength, good integrity, etc., and it is easy to ensure airtightness.
[0031] In this embodiment, a plurality of first mounting holes 4 are provided on the connecting member 2, and the first mounting holes 4 are distributed on both sides and the lower end of the connecting member 2. The first mounting holes 4 correspond one-to-one to the preset mounting holes on the upper brick groove 3 of the machine side furnace door. After the first mounting holes 4 are installed with bolts, the small furnace door body, the upper brick groove 3 of the machine side furnace door, and the machine side knife edge can be fastened to the machine side furnace door belly plate to complete the assembly of the machine side furnace door.
[0032] In this embodiment, a plurality of second mounting holes 5 are provided on the connecting member 2, and the second mounting holes 5 are distributed at the upper end of the connecting member 2. The second mounting holes 5 correspond one-to-one to the preset mounting holes on the upper brick groove 3 of the machine side furnace door. After the second mounting holes 5 are installed with bolts, the upper end of the connecting member 2 and the upper brick groove 3 of the machine side furnace door can be fixed.
[0033] In this embodiment, the upper portion of the connecting member 2 is chamfered, which can reduce the weight of the protective component and reduce the burden on the workers during installation.
[0034] In this embodiment, after the upper brick groove 3 of the machine-side furnace door is installed on the small furnace door body, a 10 mm gap reserved for maintenance is naturally formed between the protective component and the small furnace door body, and a refractory material layer is cast between the connecting piece 2 and the small furnace door body. The connecting piece 2 can be used to fix the refractory material layer to ensure that the refractory material does not fall off, protect the small furnace door body, the upper brick groove 3 of the machine-side furnace door, and the gasket between the machine-side knife edge from being burned, and avoid the raw coal gas from overflowing from the joint of the three.
[0035] In this embodiment, the insulation member 1 and the connector 2 are both made of 0Cr25Ni20 heat-resistant stainless steel. 0Cr25Ni20 heat-resistant stainless steel can withstand a high temperature of 1500°C, which fundamentally guarantees the working quality of the local furnace door iron parts.
[0036] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.
Claims
1. A protective member for the knife edge of a coke oven door, characterized by: It includes a heat insulating member and a connecting member, wherein the connecting member is fixedly sleeved on the heat insulating member, the heat insulating member is arranged on the upper brick groove of the machine side furnace door, and the connecting member is fixedly connected to the upper brick groove of the machine side furnace door.
2. A protective member for the knife edge of a coke oven door according to claim 1, characterized in that: The connecting piece and the heat insulating piece are welded.
3. The protective member for the knife edge of a coke oven door according to claim 1, characterized in that: The connecting member is provided with a plurality of first mounting holes, which are distributed on both sides and the lower end of the connecting member.
4. A protective member for the knife edge of a coke oven door according to claim 3, characterized in that: The connecting member is provided with a plurality of second mounting holes, and the second mounting holes are distributed at the upper end of the connecting member.
5. The protective component for the knife edge of a coke oven door according to claim 4, characterized in that: The upper portion of the connecting piece is chamfered.
6. The protective component for the knife edge of a coke oven door according to claim 1, characterized in that: A refractory material layer is poured between the connecting piece and the small furnace door body.
7. The protective member for the knife edge of a coke oven door according to claim 1, characterized in that: The heat insulating member and the connecting member are both made of 0Cr25Ni20 heat-resistant stainless steel.