Sintering large flue boiler capable of preventing smoke abrasion

Abstract

The utility model discloses a sintering large flue boiler capable of preventing flue gas abrasion, which relates to the technical field of flue boilers and specifically structurally comprises a boiler body. The heat exchange units are mounted in the boiler body at intervals; the flow blocking assemblies are arranged in the boiler body at intervals and located below the heat exchange units, and gaps are reserved between the flow blocking assemblies and the bottom of the boiler body; and the partition assembly is installed at the bottom of the boiler body, and the partition assembly is located between the adjacent heat exchange units. The technical problems that an existing boiler is high in anti-abrasion treatment cost and insufficient in anti-abrasion effect are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of flue boilers, in particular to a sintered large flue boiler which is resistant to flue gas abrasion. Background Art

[0002] The operating principle of a sintering machine waste heat boiler is based on heat exchange technology. During the sintering process, the sintering machine generates a large amount of high-temperature exhaust gas, which contains a rich amount of thermal energy. The sintering machine waste heat boiler draws the exhaust gas into the boiler through a flue gas inlet located near the sintering machine or annular cooler. Through a series of heat exchange processes, the heat energy in the exhaust gas is converted into usable energy forms such as steam or hot water.

[0003] The flue gas from the sintering process contains a large amount of sharp sand and dust. As the flue gas flows or moves, it will cause wear on the heat exchange tubes. The existing treatment method is usually to install anti-wear tubes in front of the tube screen of the boiler heat exchange surface. However, this is costly and the bottom of the heat exchange surface often wears due to the accumulation of sand and dust. Utility Model Content

[0004] The utility model aims to provide a sintered large flue boiler which is resistant to flue gas wear, and solves the technical problems of high cost and insufficient anti-wear effect of boiler anti-wear treatment in the prior art.

[0005] The embodiment of the present application discloses a sintered large flue boiler that is resistant to flue gas wear, comprising:

[0006] Boiler body;

[0007] A plurality of heat exchange units are installed at intervals inside the boiler body;

[0008] A plurality of flow-blocking components are spaced apart and arranged inside the boiler body, and the flow-blocking components are located below the heat exchange unit, with a gap between the flow-blocking components and the bottom of the boiler body;

[0009] The partition assembly is installed at the bottom of the boiler body, and the partition assembly is located between adjacent heat exchange units.

[0010] The present application is provided with a flow blocking component and a partition component for blocking dust and reducing the dust content in the flue gas, thereby reducing the wear of the heat exchange tubes, especially the wear at the elbows.

[0011] Based on the above technical solution, the embodiment of the present application can also be improved as follows:

[0012] Furthermore, the heat exchange unit is composed of multiple heat exchange tubes, and the elbows of the heat exchange tubes are located below the boiler body. The beneficial effect of adopting this step is that by setting the position of the elbow, subsequent protection of the elbow is facilitated.

[0013] Furthermore, the flow-blocking component includes:

[0014] a transverse baffle installed inside the boiler body, and the transverse baffle is located below the elbow of the heat exchange tube;

[0015] The vertical spoiler is installed below the horizontal spoiler. The beneficial effect of this step is that the horizontal spoiler and the vertical spoiler cooperate with each other to block dust and reduce wear.

[0016] Furthermore, the transverse baffles correspond one-to-one to the heat exchange tubes, and the transverse baffles correspond one-to-one to the vertical baffles. The beneficial effect of adopting this step is that the baffle effect can be ensured by using the same number of baffles.

[0017] Furthermore, the width of the transverse baffle is greater than the diameter of the heat exchange tube. The beneficial effect of adopting this step is that it can provide better protection.

[0018] Furthermore, the partition assembly includes:

[0019] Two first baffles, which are combined to form an inverted V-shape and are installed at the bottom of the boiler body;

[0020] The second baffle is installed on the top of the connection between the two first baffles. The beneficial effect of this step is to form a triangular structure, which can be more conducive to the accumulation and treatment of dust.

[0021] Furthermore, the upper surface of the second baffle is higher than the upper surface of the elbow of the heat exchange tube. The beneficial effect of adopting this step is that dust can be prevented from being carried out and entering the next heat exchange unit.

[0022] Furthermore, a grid plate is provided at the bottom of the boiler body, and the grid plate is located between any two of the heat exchange units. The beneficial effect of adopting this step is that dust can be further blocked by the grid plate.

[0023] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0024] 1. The present application is provided with a flow-blocking component and a partition component, which can be used to block dust, thereby reducing the dust content in the flue gas and protecting the heat exchange tube.

[0025] 2. This application designs the partition component in a shape similar to a triangle, which can better block dust and improve the dust blocking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a structural diagram of a sintered large flue boiler that is resistant to flue gas wear according to a specific embodiment of the present utility model;

[0028] Reference numerals:

[0029] 1-Boiler body; 2-Heat exchange unit; 3-Block assembly; 4-Section assembly; 5-Grid plate;

[0030] 201-heat exchange tube;

[0031] 301- horizontal spoiler; 302- vertical spoiler;

[0032] 401-first baffle; 402-second baffle. DETAILED DESCRIPTION

[0033] The following embodiments of the technical solution of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0034] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which this utility model belongs.

[0035] In this application, unless otherwise specified or limited, the terms "installed," "connected," "fixed," and the like should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0036] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0037] Example:

[0038] like Figure 1As shown, the present application discloses a sintered large flue boiler that is resistant to flue gas wear. The flue gas is processed by using corresponding components to block particles in the flue gas to prevent them from moving with the flue gas and causing wear on the heat exchange tubes, especially the elbows of the heat exchange, thereby ensuring their service life.

[0039] The specific structure of this application includes:

[0040] A boiler body 1, which is an existing boiler;

[0041] Multiple groups of heat exchange units 2 are installed at intervals inside the boiler body 1, that is, the heat exchange function of the flue gas is realized by using the heat exchange units 2, thereby ensuring the heat exchange effect;

[0042] Multiple flow-blocking components 3 are arranged at intervals inside the boiler body 1. The flow-blocking components 3 are used to block the flue gas, causing dust particles in the flue gas to fall and then accumulate on the boiler body, thereby reducing the wear of the heat exchange surface of the heat exchange tube. At the same time, the flow-blocking components 3 are located below the heat exchange unit 2. A gap is left between the flow-blocking components 3 and the bottom of the boiler body 1, so that there is enough space to prevent dust from accumulating and causing wear on the elbows of the heat exchange tubes.

[0043] The partition assembly 4 is installed at the bottom of the boiler body 1, and the partition assembly 4 is located between adjacent heat exchange units 2, and is further used to block dust in the flue gas and reduce wear.

[0044] The present application adds a flow blocking component 3 and a partition component 4 to the boiler body 1 to achieve multiple flow blocking and reduce the wear of dust on the heat exchange tubes.

[0045] In one embodiment, the heat exchange unit 2 is composed of a plurality of heat exchange tubes 201, and the elbows of the heat exchange tubes 201 are located below the boiler body 1; the heat exchange tubes 201 in this application generally have fins on the tube body, which can reduce wear to a certain extent, but fins are usually not provided at the elbows of the heat exchange tubes. After being worn by flue gas, they are easily damaged, affecting their service life. Based on this, the present application is provided with a flow blocking component 3 and a partition component 4.

[0046] Specifically, the flow-blocking assembly 3 in the present application may be T-shaped, and the flow-blocking assembly 3 includes:

[0047] A transverse baffle 301 is installed inside the boiler body 1 and is located below the elbow of the heat exchange tube 201;

[0048] The vertical baffle 302 is installed below the horizontal baffle 301; the horizontal baffle and the vertical baffle 302 in this application are connected by the support plate inside the boiler body 1 when installed. Specifically, the support plate is spaced apart and is arranged perpendicular to the Figure 1 The dust is distributed at intervals in the direction of the boiler body 1, which makes it easy for the dust to fall into the bottom of the boiler body 1.

[0049] Among them, the horizontal baffle 301 corresponds one-to-one to the heat exchange tube 201, and the horizontal baffle 301 corresponds one-to-one to the vertical baffle 302; the horizontal baffle 301 in this application corresponds one-to-one to the heat exchange tube 201, so that the corresponding heat exchange tube can be protected.

[0050] At the same time, the width of the transverse baffle 301 is greater than the diameter of the heat exchange tube 201 , so that the transverse baffle 301 can better protect the elbow of the heat exchange tube 201 .

[0051] The present application also designs the partition assembly 4 to further block the flue gas and allow the dust in the flue gas to fall, thereby completing the protection of the heat exchange tube.

[0052] Specifically, the partition assembly 4 in this application includes:

[0053] Two first baffles 401, which are combined to form an inverted V-shape and installed at the bottom of the boiler body 1;

[0054] The second baffle 402 is installed at the top of the connection between the two first baffles 401. The present application is provided with a partition assembly 4 to complete the isolation of the flue gas. Specifically, after the flue gas passes through the baffle assembly 3, it hits the partition assembly 4, so that the dust in the flue gas falls to the bottom of the boiler body 1 to avoid being carried out by the flue gas, thereby reducing the wear at the elbow of the heat exchange tube.

[0055] Specifically, the upper surface of the second baffle 402 in the present application is higher than the upper surface of the elbow of the heat exchange tube 201, which can better block dust.

[0056] The bottom of the boiler body 1 in the present application is also provided with a grid plate 5, and the grid plate 5 is located between any two of the heat exchange units 2. The grid plate 6 is higher than the baffle assembly 3. During assembly, the bottom can also be connected through support plates arranged at intervals.

[0057] Further explanation for this application:

[0058] The cavity portion at the bottom of the boiler body 1 of the present application is relatively large, so that dust is located at the bottom of the cavity portion and is not easily carried out by the flue gas, which can better prevent the elbows of the heat exchange tube 201 from being worn.

[0059] The flow-blocking assembly, grid plate and other components in the present application are installed inside the boiler body 1 through a support plate. At the same time, the support plate is composed of multiple pieces and is arranged at intervals to ensure that dust can fall to the bottom of the cavity part.

[0060] In the present application, the smoke is blocked by the flow-blocking assembly, the partition assembly and the grid plate, which can better block the dust, thereby better protecting the elbow part of the heat exchange tube.

[0061] In the specification of the present invention, a large number of specific details are described. However, it is understood that the embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this specification.

[0062] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do 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. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A sintered large flue boiler that is resistant to flue gas wear, characterized in that: include: Boiler body (1); A plurality of heat exchange units (2) are installed at intervals inside the boiler body (1); A plurality of flow-blocking components (3) are arranged at intervals inside the boiler body (1), and the flow-blocking components (3) are located below the heat exchange unit (2), with a gap between the flow-blocking components (3) and the bottom of the boiler body (1); The partition assembly (4) is installed at the bottom of the boiler body (1), and the partition assembly (4) is located between adjacent heat exchange units (2).

2. The sintered large flue boiler with anti-smoke wear according to claim 1, characterized in that: The heat exchange unit (2) is composed of a plurality of heat exchange tubes (201), and the elbows of the heat exchange tubes (201) are located below the boiler body (1).

3. The sintered large flue boiler according to claim 2, characterized in that: The flow-blocking component (3) comprises: A transverse baffle (301) is installed inside the boiler body (1), and the transverse baffle (301) is located below the elbow of the heat exchange tube (201); The vertical spoiler (302) is installed below the horizontal spoiler (301).

4. The sintered large flue boiler according to claim 3, characterized in that: The transverse baffles (301) correspond one-to-one to the heat exchange tubes (201), and the transverse baffles (301) correspond one-to-one to the vertical baffles (302).

5. The sintered large flue boiler according to claim 4, characterized in that: The width of the transverse baffle (301) is greater than the diameter of the heat exchange tube (201).

6. The sintered large flue boiler with anti-smoke wear according to claim 2, characterized in that: The partition assembly (4) comprises: Two first baffles (401), the two first baffles (401) are combined to form an inverted V-shape and are installed at the bottom of the boiler body (1); The second baffle (402) is installed on the top of the connection between the two first baffles (401).

7. The sintered large flue boiler according to claim 6, characterized in that: The upper surface of the second baffle (402) is higher than the upper surface of the elbow of the heat exchange tube (201).

8. The sintered large flue boiler according to claim 1, characterized in that: A grid plate (5) is further provided at the bottom of the boiler body (1), and the grid plate (5) is located between any two of the heat exchange units (2).

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