Novel ladle shroud structure

Abstract

The utility model relates to industrial baking ladle equipment technical field especially a new -type baking ladle ware cover structure, including the cover main part and the boss that extends from its bottom surface downward, the cover main part adopts refractory castable integrated casting forming with the boss, is equipped with the fire gathering structure hole that penetrates the cover main part and the boss in the boss. The utility model is built -in fire gathering structure hole in the boss, replaces the ceramic combustion chamber of easy damage, improves the reliability and the service life of equipment.

Description

Technical Field

[0001] This utility model relates to the field of industrial baking equipment technology, and in particular to a novel baking machine cover structure for improving baking efficiency and equipment reliability. Background Technology

[0002] Existing technologies such as Figure 1 As shown, the lid of a bread oven typically houses a ceramic combustion chamber 4, which provides a high-temperature flame to bake the bread. However, due to the brittle nature of the ceramic combustion chamber, it is easily broken by even slight impacts to the lid, leading to incomplete combustion or even complete failure. This can result in wasted fuel and low baking efficiency, or even prevent the bread oven from igniting and shutting down, causing significant disruption to the normal operation and maintenance of the equipment. Furthermore, the existing lid structure provides insufficient protection for the bread opening and packing, making them susceptible to damage from high temperatures and impacts. During the baking process, this can lead to sparks damaging the aluminum-coated bread and wasting energy, resulting in reduced efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a novel cover structure for a baking oven. By optimizing the design of the cover and the boss, the problem of easy damage to the ceramic combustion chamber and low combustion efficiency is solved, while enhancing the reliability and ease of maintenance of the equipment.

[0004] The technical solution adopted by this utility model to solve the technical problem is:

[0005] This utility model provides a novel bread baking oven cover structure, including a cover body and a protrusion extending downward from its bottom surface. The cover body and the protrusion are integrally cast using refractory castable, and the protrusion has a fire-gathering structure hole that penetrates the cover body and the protrusion.

[0006] Furthermore, the extension length L of the boss satisfies: L = bag opening depth + (15-20) cm, so that the end of the boss covers the area below the bag opening.

[0007] Furthermore, the fire-gathering structure hole is a tapered channel, and its inlet end diameter D1 and outlet end diameter D2 satisfy: D1 / D2=1.5-2.5, and the taper angle α is 15°-30°.

[0008] Furthermore, the top of the cover is provided with a burner interface for connecting a combustion device and supplying gas into the fire-gathering structure hole.

[0009] Furthermore, the heat resistance temperature of the refractory castable is ≥1550℃ and the compressive strength is ≥45MPa.

[0010] Furthermore, the outer wall of the boss is provided with an annular heat insulation groove, which is filled with ceramic fiber cotton.

[0011] The advantages and positive effects of this utility model are:

[0012] 1. This utility model uses refractory castable to integrally mold the cover and boss, which effectively enhances the structural strength and avoids cracking due to collision.

[0013] 2. The protrusion of this utility model has a built-in fire-gathering structure hole, which replaces the easily damaged ceramic combustion chamber and improves the reliability and service life of the equipment.

[0014] 3. The shape and size of the fire-concentrating structure hole of this utility model are adapted to the flame length, which can extend the flame length and improve the baking efficiency.

[0015] 4. The protrusion of this utility model extends to the bottom of the bag opening to protect the bag opening and packing, reducing damage to them from high temperature and impact.

[0016] 5. The diameter and extension length of the holes in the cover and boss of this utility model can be adjusted according to actual needs to adapt to baking operations of different scales. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the lid of an existing bread oven.

[0018] Figure 2 This is a structural diagram of the lid of the bread baking device in this application. Detailed Implementation

[0019] The present invention will be further described in detail below through specific embodiments. The following embodiments are only descriptive and not limiting, and should not be used to limit the protection scope of the present invention.

[0020] like Figure 2 The novel bread oven cover structure shown includes a cover body 1 and a boss 2 extending downward from its bottom surface. The cover body 1 and the boss 2 are integrally cast using refractory castable. The boss 2 has a fire-gathering structure hole 3 that penetrates the cover body 1 and the boss 2.

[0021] The boss 2 extends vertically downward from the bottom surface of the cover body 1; the root is provided with a rounded corner of R8-R12mm to prevent stress concentration.

[0022] The fire-gathering structure hole 3 runs through the central axis of the boss 2 and the main body 1 of the cover, and the hole wall is formed synchronously with the castable material, without secondary machining. It replaces the traditional ceramic combustion chamber and directly serves as the flame channel.

[0023] The extension length L of the boss 2 satisfies: L = packing opening depth + (15-20) cm, so that the end of the boss 2 covers the area below the packing opening. After the end enters the packing, the flame initiation point moves downward, reducing the heat radiation from the packing opening; at the same time, a "sleeve effect" is formed, which restricts the flame from overflowing.

[0024] The flame-converging structure orifice 3 is a tapered channel, with its inlet diameter D1 and outlet diameter D2 satisfying the following condition: D1 / D2 = 1.5-2.5, and a taper angle α of 15°-30°. The inlet section is a straight or slightly enlarged orifice for easy connection with the burner outlet. The tapered section is a conical surface with a straight generatrix or a slightly concave arc; an α of 20° provides the best flame-converging effect. The tapered structure increases the flame velocity, forming a stable high-temperature core; simultaneously, it reduces the outlet static pressure, minimizing the risk of backfire.

[0025] The top of the cover is equipped with a burner interface for connecting the combustion device and supplying gas to the ignition structure hole. The coaxiality between the center line of the interface and the center line of the ignition structure hole 3 is ≤0.5mm to ensure that the flame does not deflect.

[0026] The heat resistance temperature of the refractory castable is ≥1550℃, and the compressive strength is ≥45MPa. Kester Refractory Materials (Shijiazhuang) ACSTF53 castable is selected.

[0027] The outer wall of boss 2 is provided with an annular heat insulation groove, which is filled with ceramic fiber cotton. This reduces the radiative heat transfer from the outer wall of the boss to the flange, thereby reducing the risk of flange deformation; at the same time, it acts as a thermal expansion buffer zone to prevent the castable from cracking.

[0028] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the utility model, and these all fall within the protection scope of the present utility model.

Claims

1. A novel bread maker lid structure, characterized in that: It includes a cover body (1) and a boss (2) extending downward from its bottom surface. The cover body (1) and the boss (2) are integrally cast using refractory castable. The boss (2) has a fire-gathering structure hole (3) that penetrates the cover body (1) and the boss (2).

2. The structure according to claim 1, characterized in that: The extension length L of the protrusion (2) satisfies: L = bag opening depth + (15-20)cm, so that the end of the protrusion (2) covers the area below the bag opening.

3. The structure according to claim 2, characterized in that: The fire-gathering structure hole (3) is a tapered channel, and its inlet end diameter D1 and outlet end diameter D2 satisfy: D1 / D2=1.5-2.5, and the taper angle α is 15°-30°.

4. The structure according to claim 3, characterized in that: The top of the cover is provided with a burner interface for connecting a combustion device and supplying gas into the fire-gathering structure hole.

5. The structure according to claim 4, characterized in that: The heat resistance temperature of the refractory castable is ≥1550℃ and the compressive strength is ≥45MPa.

6. The structure according to claim 5, characterized in that: The outer wall of the boss (2) is provided with an annular heat insulation groove, which is filled with ceramic fiber cotton.

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