Refractory brick structure for lower edge of oblique cone section of dry quenching tank
By using a structure combining silicon nitride refractory bricks and heat-resistant steel metal retaining rings along the lower edge of the inclined cone section of the dry quenching coke pot, the problem of severe wear was solved, achieving convenient repair and reduced maintenance costs.
Patent Information
- Application Number
- CN202423238401.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Traditional heat-resistant steel liners are heavy and expensive, while silicon nitride ceramic liners suffer severe wear at the lower edge of the inclined cone section of the dry quenching coke oven and cannot be repaired in time, resulting in high maintenance costs.
The silicon nitride refractory brick lining is combined with a heat-resistant steel metal retaining ring, which is connected by connecting bolts. The gaps are filled with silicon nitride castable to form an enclosed cavity structure, which enables convenient repair.
It effectively solves the problem of ceramic liner wear, reduces maintenance frequency and cost, and improves the convenience of installation and maintenance.
Smart Images
Figure CN223633307U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to refractory brick structure, concretely relates to a dry quenching tank inclined cone section lower edge uses refractory brick structure. BACKGROUND
[0002] In the coke production, the red coke in the dry quenching coke oven needs to be transported to the quenching tower for quenching process; during the transportation process, the red coke is loaded in the dry quenching tank, and the temperature of the red coke exceeds 1100 DEG C; therefore, the inside of the quenching tank needs to be lined with heat-resistant material; the traditional process of the lining plate of the inclined cone section adopts heat-resistant steel to make the lining plate, which is heavy and high in cost; at present, a kind of refractory material is adopted, which is light in weight and low in cost, but the installation structure has defects; the defects are that: the silicon nitride ceramic lining plate is used in the lower edge of the inclined cone section, and the red coke will cause serious wear to the lower edge after sliding in the production process, so that the wear increases after long-term use, and only the refractory material can be replaced, so that timely and effective repair cannot be carried out. SUMMARY
[0003] In order to solve the above technical problems, the utility model aims at providing a dry quenching tank inclined cone section lower edge uses refractory brick structure.
[0004] The utility model discloses a dry quenching tank inclined cone section lower edge uses refractory brick structure to solve the ceramic lining plate in the coke tank inclined cone section lower edge corner breakage and cannot be repaired in time.
[0005] A kind of dry quenching tank inclined cone section lower edge uses refractory brick structure, refractory brick structure has the silicon nitride refractory brick lining plate of hanging in the lower edge of dry quenching tank;The silicon nitride refractory brick lining plate and the tank wall between the lower edge of dry quenching tank are provided with heat-resistant steel metal retaining ring;The heat-resistant steel metal retaining ring has the flat plate between the silicon nitride refractory brick lining plate and the tank wall of the lower edge of dry quenching tank, the lower end of the flat plate is bent to the side away from the tank wall again and then bends upwards, forms the cavity surrounding the bottom of the silicon nitride refractory brick lining plate;The gap between the cavity and the silicon nitride refractory brick lining plate is filled with silicon nitride castable.
[0006] The silicon nitride refractory brick lining plate, heat-resistant steel metal retaining ring and tank wall are connected by connecting bolt.
[0007] The flat plate of heat-resistant steel metal retaining ring has protrusion, and the wall surface of the silicon nitride refractory brick lining plate has recess for matching the protrusion on the flat plate.
[0008] The utility model discloses a dry quenching tank inclined cone section lower edge uses refractory brick structure to solve the ceramic lining plate in the coke tank inclined cone section lower edge corner breakage and cannot be repaired in time. BRIEF DESCRIPTION OF DRAWINGS
[0009] Figure 1 It is a structural schematic view of the utility model.
[0010] In the drawing: 1-silicon nitride refractory brick lining plate; 2-circular stepped hole; 3-heat-resistant steel metal retaining ring; 4-silicon carbide castable. DETAILED DESCRIPTION
[0011] The utility model is described in connection with the drawings and specific embodiments:
[0012] As Figure 1 shown, a dry quenching coke tank inclined cone section lower edge uses a refractory brick structure, the refractory brick structure has a silicon nitride refractory brick lining plate 1 hung on the lower edge of the dry quenching coke tank;The silicon nitride refractory brick lining plate 1 and the tank wall of the lower edge of the dry quenching coke tank are provided with a heat-resistant steel metal retaining ring 3;The heat-resistant steel metal retaining ring 3 has a flat plate between the silicon nitride refractory brick lining plate and the tank wall of the lower edge of the dry quenching coke tank, the lower end of the flat plate is bent away from the tank wall and then bent upward, forming a cavity surrounding the bottom of the silicon nitride refractory brick lining plate;The gap between the cavity and the silicon nitride refractory brick lining plate is filled with silicon nitride castable 4.
[0013] The silicon nitride refractory brick lining plate 1, the heat-resistant steel metal retaining ring 3 and the tank wall are connected by connecting bolts.
[0014] The flat plate of the heat-resistant steel metal retaining ring has a protrusion, and the wall surface of the silicon nitride refractory brick lining plate has a groove matched with the protrusion on the flat plate.
[0015] In use, the silicon nitride refractory brick lining plate is aligned with the mounting hole, and after the mounting and laying are completed in sequence, the prepared connecting bolt gasket is sunk into the circular stepped hole, and the silicon nitride brick, the heat-resistant steel metal retaining ring and the tank wall are penetrated in sequence for threaded connection;The connecting bolt has been treated by winding with anti-swelling refractory fiber, that is, 1.5mm refractory fiber cotton is wound on the axial curved surface of the bolt.
[0016] The utility model is not only used on the dry quenching coke tank body bottom gate lining plate, but also applicable to various plane walls, furnace walls and other thermal insulation walls, all of which belong to the protection scope of the utility model.
Claims
1. A dry quenching coke tank inclined cone section lower edge structure using refractory bricks, characterized by: The fireproof brick structure has a silicon nitride fireproof brick lining plate hung on the lower edge of the dry quenching tank; the silicon nitride fireproof brick lining plate and the tank wall of the lower edge of the dry quenching tank are provided with a heat-resistant steel metal baffle; the heat-resistant steel metal baffle has a flat plate between the silicon nitride fireproof brick lining plate and the tank wall of the lower edge of the dry quenching tank, the lower end of the flat plate is bent away from the tank wall and then bent upward to form a cavity surrounding the bottom of the silicon nitride fireproof brick lining plate; the gap between the cavity and the silicon nitride fireproof brick lining plate is filled with silicon nitride castable.
2. A dry quenching tank inclined cone section lower edge structure using refractory bricks as claimed in claim 1, characterized in that: The silicon nitride fireproof brick lining plate, the heat-resistant steel metal baffle and the tank wall are connected through connecting bolts.
3. A dry quenching tank inclined cone section lower edge structure using refractory bricks as claimed in claim 1, characterized in that: The flat plate of the heat-resistant steel metal baffle has a protrusion, and the wall surface of the silicon nitride fireproof brick lining plate has a groove matched with the protrusion on the flat plate.