Roasting furnace flame path wall brick, flame path wall and roasting furnace

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By setting a heat conduction part on the wall bricks of the roasting furnace fire channel, the problem of large temperature difference between the fire channel and the material box is solved, more efficient heat conduction is achieved, energy consumption is reduced and the life of the roasting furnace is extended.

CN223425714UActive Publication Date: 2025-10-10ZHENGZHOU NON FERROUS METALS RES INST CO LTD OF CHALCO

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Patent Information

Application Number: CN202422846056.0
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-11-21
Publication Date: 2025-10-10
Estimated Expiration: 2034-11-21

AI Technical Summary

Technical Problem

The temperature difference between the fire channel and the material box of the existing roasting furnace is large, which leads to high energy consumption, long production cycle and short roasting furnace life.

Method used

A plurality of heat-conducting parts are provided on the brick body of the roasting furnace flue wall bricks. The heat-conducting parts protrude and/or are embedded in the brick body surface. The embedding depth and protruding height are 3% to 10% of the brick body thickness to increase the heat exchange area and rate.

Benefits of technology

By increasing the heat conduction between the fire channel and the material box, the temperature difference is reduced, the fire channel temperature is lowered, the insulation time is shortened, the energy consumption is reduced, and the life of the roasting furnace is extended.

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Abstract

The utility model relates to the technical field of roasting furnace accessories, in particular to a roasting furnace flame path wall brick, a flame path wall and a roasting furnace. The utility model provides a roasting furnace flame path wall brick which comprises a brick body and a plurality of heat conduction parts, the heat conduction parts are arranged on the two opposite faces of the brick body, the heat conduction parts protrude and / or are embedded into the surface of the brick body, and the embedded depth and the protruding height of the heat conduction parts are set to be 3%-10% of the thickness of the brick body. By implementing the technical scheme, the heat exchange area of the flame path wall brick can be increased, the heat exchange rate can be increased, the temperature difference between the flame path and the material box can be reduced, the flame path temperature is reduced, the heat preservation time is shortened, the roasting energy consumption is reduced, and the service life of a roasting furnace is prolonged.

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Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of roasting furnace accessories, in particular to a roasting furnace flue wall brick, a flue wall and a roasting furnace. BACKGROUND

[0002] The flue and the material box of a ring-type roasting furnace are separated by a flue wall. During roasting, the flue wall transmits the heat of the flue smoke to the material box, thereby heating the products in the material box. The heat transfer effect of the flue wall directly affects the temperature difference and high-temperature holding time in the flue and the material box. The temperature difference between the material box and the flue of the existing roasting furnace is large. The manufacturer often increases the flue temperature or prolongs the high-temperature holding time to increase the material box temperature, resulting in high energy consumption, long production cycle, large carbon emission and high production cost. In addition, too high flue temperature or too long high-temperature time will also reduce the service life of the roasting furnace.

[0003] There is an urgent need to improve the heat transfer effect of the flue wall to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] The present disclosure aims to at least solve one of the technical problems existing in the prior art or related art.

[0005] To this end, the present disclosure provides a roasting furnace flue wall brick in a first aspect, comprising a brick body and a plurality of heat-conducting parts, the heat-conducting parts are arranged on the opposite two surfaces of the brick body, wherein,

[0006] The plurality of heat-conducting parts protrude and / or are embedded in the surface of the brick body, and the embedding depth and protruding height of the heat-conducting parts are set to 3% to 10% of the thickness of the brick body.

[0007] In a feasible implementation, the heat-conducting parts are arranged as long strip-shaped grooves and / or long strip-shaped protrusions, and the long strip-shaped grooves and / or protrusions are arranged at intervals.

[0008] In a feasible implementation, the heat-conducting parts are arranged as a plurality of long strip-shaped grooves and a plurality of long strip-shaped protrusions, the plurality of long strip-shaped grooves are arranged at intervals, and at least one long strip-shaped protrusion is arranged between the plurality of long strip-shaped grooves.

[0009] In a feasible implementation, the long strip-shaped grooves and the long strip-shaped protrusions are arranged in a corrugated shape.

[0010] In a feasible implementation, the heat-conducting parts are arranged as a plurality of polygonal grooves and / or polygonal protrusions, and the plurality of polygonal grooves and / or polygonal protrusions are arranged in an array.

[0011] In a feasible implementation, the heat-conducting parts are arranged as protrusions, and the outer surface of the protrusions is arranged in an arc shape.

[0012] In a feasible embodiment, the brick body includes a first connecting surface, a second connecting surface, a first heat-conducting surface and a second heat-conducting surface, the first heat-conducting surface and the second heat-conducting surface are arranged opposite to each other, the heat-conducting part is arranged on the first heat-conducting surface and the second heat-conducting surface, the first connecting surface and the second connecting surface are arranged opposite to each other, and the first connecting surface is provided with a connecting protrusion, and the second connecting surface is provided with a connecting groove.

[0013] In a feasible implementation manner, the embedding depth and protruding height of the heat conducting portion are set to 6% of the thickness of the brick body.

[0014] In a second aspect of the present disclosure, a roasting furnace flue wall is provided, comprising the above-mentioned roasting furnace flue wall bricks.

[0015] In a third aspect of the present disclosure, a roasting furnace is provided, comprising the above-mentioned roasting furnace flue wall.

[0016] Compared with the prior art, the present disclosure has at least the following beneficial effects: a plurality of heat-conducting parts are provided on the brick body of the present disclosure, wherein the heat-conducting parts are provided on two opposite sides of the brick body close to the fire channel and the material box, and a plurality of heat-conducting parts protrude and / or are embedded in the surface of the brick body, which can increase the heat exchange area between the brick body and the fire channel flue gas and the material box filling material, thereby accelerating the heat conduction between the fire channel and the material box, increasing the heat exchange area of the fire channel wall bricks, and improving the heat exchange rate, which is beneficial to reducing the temperature difference between the fire channel and the material box, lowering the fire channel temperature, shortening the insulation time, reducing the roasting energy consumption, and extending the life of the roasting furnace, and the embedding depth and protruding height of the heat-conducting part are set to 3% to 10% of the brick body thickness, which can maximize the heat exchange area without affecting the assembly space. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0018] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the exemplary embodiments below. The accompanying drawings are for illustration purposes only and are not to be considered limiting of the present application. Throughout the accompanying drawings, the same reference symbols denote the same components. In the accompanying drawings:

[0020] Figure 1This is one of the structural schematic diagrams of the heat conducting portion disclosed in the present invention;

[0021] Figure 2 This is the second structural diagram of the heat conducting portion disclosed in the present invention;

[0022] Figure 3 This is the third structural diagram of the heat conducting portion disclosed in the present invention;

[0023] Figure 4 This is the fourth structural diagram of the heat conducting portion disclosed in the present invention;

[0024] Figure 5 This is the fifth structural diagram of the heat conducting portion disclosed in the present invention;

[0025] Figure 6 Schematic diagram of the connecting protrusion and connecting groove structure disclosed in the present invention.

[0026] in, Figures 1 to 6 The corresponding relationship between the reference numerals and the component names is: 1-brick body; 2-heat conducting part; 3-connecting protrusion; 4-connecting groove. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features therein can be combined with each other in the absence of conflict.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0029] Currently, the flue and charge box of a ring-type roasting furnace are separated by a flue wall. During roasting, the flue wall transfers heat from the flue flue flue gas to the charge box, thereby heating the product inside. The heat transfer efficiency of the flue wall directly affects the temperature difference between the flue and charge box, as well as the high-temperature holding time. In existing roasting furnaces, the temperature difference between the charge box and the flue is large. Manufacturers often increase the charge box temperature by raising the flue temperature or extending the holding time during the high-temperature phase. This results in high energy consumption, long production cycles, high carbon emissions, and high production costs. Furthermore, excessively high flue temperatures or prolonged high-temperature periods can shorten the roasting furnace's service life. Existing technical solutions improve the thermal conductivity of flue wall tiles by modifying the formulation and preparation methods of the flue wall tiles, using improved raw material formulas. However, this material change only improves thermal conductivity, and the material cost far exceeds the structural cost.

[0030] Based on this, an embodiment of the present disclosure provides a roasting furnace flue wall brick, and a plurality of heat-conducting parts are provided on the brick body of the present disclosure, wherein the heat-conducting parts are provided on two opposite sides close to the fire channel and the material box, and a plurality of heat-conducting parts protrude and / or are embedded in the surface of the brick body, which can increase the heat exchange area between the brick body and the fire channel flue gas and the material box filling material, thereby accelerating the heat conduction between the fire channel and the material box, increasing the heat exchange area of the fire channel wall bricks, and improving the heat exchange rate, which is beneficial to reducing the temperature difference between the fire channel and the material box, lowering the fire channel temperature, shortening the insulation time, reducing the roasting energy consumption, and extending the life of the roasting furnace, and the embedding depth and protruding height of the heat-conducting part are set to 3% to 10% of the brick body thickness, which can maximize the heat exchange area without affecting the assembly space.

[0031] The following is a detailed description of the roasting furnace flue wall bricks by using specific embodiments:

[0032] Reference Figures 1 to 6 As shown, in the first aspect of the present disclosure, a baking furnace flue wall brick is provided, characterized in that it includes a brick body 1 and a plurality of heat-conducting parts 2, and the heat-conducting parts 2 are arranged on two opposite sides of the brick body 1, wherein the plurality of heat-conducting parts 2 protrude and / or are embedded in the surface of the brick body 1, and the embedding depth and protruding height of the heat-conducting parts 2 are set to 3% to 10% of the thickness of the brick body 1.

[0033] The brick body 1 disclosed herein is provided with a plurality of heat-conducting parts 2, wherein the heat-conducting parts 2 are provided on two opposite sides adjacent to the fire channel and the material box. The plurality of heat-conducting parts 2 protrude and / or are embedded in the surface of the brick body 1, which can increase the heat exchange area between the brick body and the smoke of the fire channel and the filling material of the material box, thereby accelerating the heat conduction between the fire channel and the material box, increasing the heat exchange area of the fire channel wall bricks, and improving the heat exchange rate, which is conducive to reducing the temperature difference between the fire channel and the material box, lowering the temperature of the fire channel, shortening the insulation time, reducing the energy consumption of roasting, and extending the life of the roasting furnace. The embedding depth and protruding height of the heat-conducting part 2 are set to 3% to 10% of the thickness of the brick body 1, which can maximize the heat exchange area without affecting the assembly space. It should be noted that the thickness of the brick body 1 is the distance between the two opposite sides where the heat-conducting part 2 is provided.

[0034] Specifically, the shape of the brick body 1 can be adaptively configured according to actual needs. Multiple flue wall bricks of the present disclosure can be spliced together to form a flue wall for use in a roasting furnace. The present disclosure specifically configures the brick body 1 as a rectangular brick body. The heat conducting portion 2 can be configured such that the heat conducting portion 2 protrudes and / or is embedded in the surface of the brick body 1.

[0035] In the embodiment where the heat conducting portion 2 protrudes from the surface of the brick body 1, the heat conducting portion 2 is configured as a protrusion, wherein the protrusion and the brick body can be integrally formed to ensure heat conduction effect and structural strength. The heat conducting portion 2 can be arranged in an array or at irregular intervals. The present disclosure specifically adopts an array arrangement for the arrangement of the heat conducting portion 2.

[0036] In the embodiment where the heat conducting portion 2 is embedded in the surface of the brick body 1, the heat conducting portion 2 can be configured as a groove opened in the surface of the brick body 1. Furthermore, in the embodiment where the heat conducting portion 2 is embedded in the brick body 1, the groove can be configured as a wide-mouth groove, i.e., the sidewalls of the groove form a wide-mouth expansion from the groove bottom to the groove mouth, thereby increasing the contact efficiency between the flue gas and the groove.

[0037] In the embodiment where the heat conducting portion 2 is both protruding from and embedded in the surface of the brick body 1, the protrusions and grooves can be arranged alternately, or a portion of the protrusions and a portion of the grooves can be arranged. The present disclosure specifically adopts an alternating arrangement method. For example, after the groove is provided, a protrusion is provided on the edge of the groove, so that the inside of the groove and the side wall of the protrusion are arranged coplanarly. This increases the contact area of the smoke on the heat conducting portion 2 and makes it more coherent, thereby improving the heat conduction effect.

[0038] Because this technical solution is used for flue gas heating, for example, in actual use, the brick body thickness is set to 90 mm to 110 mm. If the protrusion / depression ratio is less than 3% of the brick body 1 thickness, the area of contact between the flue gas and the heat conducting portion 2 is small, resulting in a small increase in heat exchange area and poor thermal conductivity. If the protrusion / depression ratio is greater than 10% of the brick body 1 thickness, the concave embodiment will have a significant impact on the strength of the wall tile, while the protrusion embodiment will cause the heat conducting portion 2 to occupy too much space in the fire channel. Furthermore, the embedding depth and protrusion height of the heat conducting portion 2 of the present disclosure are set to 6% of the brick body 1 thickness.

[0039] In some embodiments, the heat conducting portion 2 is configured as an elongated groove and / or an elongated protrusion, and the elongated grooves and / or protrusions are arranged at intervals.

[0040] In this embodiment, Figure 1 As shown, the heat-conducting part 2 is set as a long strip groove and / or a long strip protrusion. The present disclosure specifically sets the heat-conducting part 2 as a rectangle. The long strip grooves and / or protrusions are arranged at intervals to increase the area occupied by the heat-conducting part 2 on the brick body 1 to increase the heat-conducting effect, and the straight edges of the rectangle are in more uniform contact with the flue gas.

[0041] In some embodiments, the heat conducting portion 2 is configured as a plurality of elongated grooves and a plurality of elongated protrusions, the plurality of elongated grooves are arranged at intervals, and at least one elongated protrusion is arranged between the plurality of elongated grooves.

[0042] In this embodiment, the heat conducting portion 2 is configured as a plurality of elongated grooves and a plurality of elongated protrusions, the plurality of elongated grooves are arranged at intervals, and at least one elongated protrusion is arranged between the plurality of elongated grooves, so that the grooves and the protrusions cooperate with each other, thereby increasing a larger contact area; and after the flue gas enters the groove, it can be blocked to a certain extent by the protrusions, so that the heated flue gas contacts the inner wall of the groove more fully, thereby improving the heat conduction effect.

[0043] In some embodiments, the elongated grooves and the elongated protrusions are configured in a corrugated shape.

[0044] In this embodiment, the long strip grooves and long strip protrusions disclosed in the present invention are set to be corrugated. The corrugated grooves allow the smoke to have a longer contact time in the grooves. When the smoke enters the fire channel, it can first contact part of the protrusions to preheat them and then gradually contact them along the shape of the corrugations. It is not easy for the smoke to directly pass over the protrusions, so that the contact between the protrusions and the smoke is more complete.

[0045] In some embodiments, the heat conducting portion 2 is configured as a plurality of polygonal grooves and / or polygonal protrusions, and the plurality of polygonal grooves and / or polygonal protrusions are arranged in an array.

[0046] In this embodiment, the heat conducting portion 2 of the present disclosure is configured as a plurality of polygonal grooves and / or polygonal protrusions, which are arranged in an array. The polygonal structure increases the contact surface, making the smoke contact more uniform and further improving the heat conduction effect.

[0047] In some embodiments, the heat conducting portion 2 is configured as a bump, and the outer surface of the bump is configured as an arc.

[0048] In this embodiment, the heat conducting portion 2 of the present disclosure is configured as a protrusion, and the outer surface of the protrusion is configured as an arc. It can be configured as an elliptical protrusion or a circular protrusion. The arc-shaped outer surface can better facilitate the flow of smoke. Furthermore, the heat conducting portion 2 of the present disclosure can also be configured as an elliptical groove or a circular groove, or it can be configured as an elliptical groove or a circular groove and an elliptical protrusion or a circular protrusion arranged alternately.

[0049] In some embodiments, the brick body 1 includes a first connecting surface, a second connecting surface, a first heat-conducting surface and a second heat-conducting surface, the first heat-conducting surface and the second heat-conducting surface are arranged opposite to each other, the heat-conducting part 2 is arranged on the first heat-conducting surface and the second heat-conducting surface, the first connecting surface and the second connecting surface are arranged opposite to each other, and the first connecting surface is provided with a connecting protrusion 3, and the second connecting surface is provided with a connecting groove 4.

[0050] In this embodiment, the brick body 1 of the present disclosure includes a first connecting surface, a second connecting surface, a first heat-conducting surface, and a second heat-conducting surface. The first heat-conducting surface and the second heat-conducting surface are arranged opposite each other. The heat-conducting portion 2 is arranged on the first heat-conducting surface and the second heat-conducting surface. The first connecting surface and the second connecting surface are arranged opposite each other. The first connecting surface is provided with a connecting protrusion 3, and the second connecting surface is provided with a connecting groove 4. The protrusion 3 and groove 4 of the present disclosure can play a snap-fitting role, making the assembly of multiple brick bodies 1 into a fire channel wall more convenient and secure.

[0051] In a second aspect of the present disclosure, a roasting furnace flue wall is provided, comprising the above-mentioned roasting furnace flue wall bricks.

[0052] In a third aspect of the present disclosure, a roaster is provided, comprising the roaster fire wall as described above.

[0053] In the present disclosure, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; the term "multiple" refers to two or more, unless otherwise explicitly limited. The terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, "connecting" can be fixed connection, or detachable connection, or integrally connected; "connected" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0054] In the description of the present disclosure, it should be understood that the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present disclosure and simplifying the description, and do not indicate or imply that the device or unit referred to must have a particular direction, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present disclosure.

[0055] In the description of the present disclosure, the terms "one embodiment", "some embodiments", "a specific embodiment" and the like mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0056] The above is only the preferred embodiment of the present disclosure, and is not intended to limit the present disclosure. For those skilled in the art, the present disclosure can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A baking furnace flue wall brick, characterized in that: It includes a brick body and a plurality of heat conducting parts, wherein the heat conducting parts are arranged on two opposite sides of the brick body, A plurality of heat conducting parts protrude and / or are embedded in the surface of the brick body, and the embedding depth and protruding height of the heat conducting parts are set to 3% to 10% of the thickness of the brick body.

2. The baking furnace flue wall brick according to claim 1, characterized in that: The heat conducting portion is configured as an elongated groove and / or an elongated protrusion, and the elongated grooves and / or protrusions are arranged at intervals.

3. The baking furnace flue wall brick according to claim 1, characterized in that: The heat conducting portion is configured as a plurality of long strip grooves and a plurality of long strip protrusions, the plurality of long strip grooves are arranged at intervals, and at least one long strip protrusion is arranged between the plurality of long strip grooves.

4. The baking furnace flue wall brick according to claim 2 or 3, characterized in that: The elongated grooves and the elongated protrusions are configured in a corrugated shape.

5. The baking furnace flue wall brick according to claim 1, characterized in that: The heat conducting portion is configured as a plurality of polygonal grooves and / or polygonal protrusions, and the plurality of polygonal grooves and / or polygonal protrusions are arranged in an array.

6. The baking furnace flue wall brick according to claim 1, characterized in that: The heat conducting portion is configured as a convex block, and the outer surface of the convex block is configured as an arc shape.

7. The baking furnace flue wall brick according to claim 1, characterized in that: The brick body includes a first connecting surface, a second connecting surface, a first heat conducting surface and a second heat conducting surface, the first heat conducting surface and the second heat conducting surface are arranged opposite to each other, the heat conducting part is arranged on the first heat conducting surface and the second heat conducting surface, the first connecting surface and the second connecting surface are arranged opposite to each other, and the first connecting surface is provided with a connecting protrusion, and the second connecting surface is provided with a connecting groove.

8. The baking furnace flue wall brick according to claim 1, characterized in that: The embedding depth and protruding height of the heat conducting part are set to 6% of the thickness of the brick body.

9. A roasting furnace flue wall, characterized in that: The invention comprises the baking furnace flue wall bricks according to any one of claims 1 to 8.

10. A roasting furnace, characterized in that: Including the roasting furnace flue wall as described in claim 9.