A tail gas chimney replacement and expansion device

Abstract

The utility model discloses a kind of replacement expansion device of tail gas chimney, comprising: chimney inner bag, by the pipe after increasing diameter is connected to each other to form, wherein, chimney inner bag bottom is connected with tail gas entrance flue;With the steel support of mutual consistency of pipe quantity, be set on the concrete platform on the inner wall of concrete cylinder;Wherein, each pipe is clamped on corresponding one steel support.The utility model is less investment, short time, suitable for the rapid expansion of concrete or steel structure tail gas chimney, by tail gas chimney device rapid expansion, meet tail gas discharge requirement.

Description

Technical Field

[0001] This utility model relates to the field of exhaust gas chimney technology, and in particular to an exhaust gas chimney replacement and expansion device. Background Technology

[0002] In the production processes of smelting, chemical industry, etc., a large amount of qualified exhaust gas is generated and discharged into the atmosphere through chimneys. As production gradually increases, exhaust gas chimneys can no longer meet the exhaust gas discharge requirements, and new exhaust gas chimneys need to be built to ensure timely discharge of exhaust gas. However, building new exhaust gas chimneys involves large investments and long time. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a replacement and expansion device for exhaust gas chimneys.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A replacement and expansion device for exhaust gas chimneys, comprising:

[0006] The chimney liner is composed of several interconnected pipes with increased diameters, with the bottom of the chimney liner connected to the exhaust gas inlet flue.

[0007] Steel supports, matching the number of pipes, are installed on concrete platforms on the inner wall of the concrete cylinder.

[0008] Each pipe is clamped onto a corresponding steel bracket.

[0009] Flanges are installed at both the upper and lower ends of the pipe.

[0010] Brackets are installed on the outer walls of both sides of the pipe for interlocking with the steel support.

[0011] The concrete platform is provided with a concrete platform boss, and a steel support is provided on the concrete platform boss.

[0012] The steel support includes;

[0013] Four channel steels are arranged in a rectangular pattern.

[0014] Among them, two adjacent channel steels are connected by channel steel.

[0015] The beneficial effects of this utility model are as follows: During the overhaul and replacement of the chimney liner, this utility model fully utilizes the pre-drilled holes in the concrete of the chimney liner to hoist the expanded pipes, flanges, brackets, and channel steel to each concrete platform. Short pipe sections and steel supports are then fabricated on each concrete platform, and the short pipe sections are installed from above, thus completing the connection of the chimney liner. By expanding the exhaust gas chimney, the normal discharge of exhaust gas meeting standards is ensured. This utility model is suitable for the rapid expansion of concrete or steel structure exhaust gas chimneys, meeting exhaust gas discharge requirements through chimney expansion. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 for Figure 1 AA section view in the middle;

[0018] Figure 3 This is a structural schematic diagram of the concrete platform of this utility model;

[0019] Figure 4 This is a structural schematic diagram of the steel support frame of this utility model;

[0020] Figure 5 This is a diagram showing the positional relationship between the steel bracket and the corbel in this utility model.

[0021] Figure 6 This is a schematic diagram of the pipe structure of this utility model;

[0022] Figure 7 This is a top view of the steel support frame of this utility model.

[0023] Among them, 1-concrete cylinder, 2-concrete platform, 3-chimney liner, 31-pipeline, 4-exhaust gas inlet flue, 5-channel steel one, 6-channel steel two, 7-concrete platform boss, 8-steel support, 9-bracket, 10-flange. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0025] like Figures 1 to 7As shown, a replacement and expansion device for a flue gas chimney includes: a chimney liner 3, composed of several interconnected pipes 31 with increased diameters, wherein the bottom of the chimney liner 3 is connected to the exhaust gas inlet flue 4; steel supports 8, with the same number of pipes 31, are installed on a concrete platform 2 on the inner wall of the concrete cylinder 1; wherein each pipe 31 is clamped onto a corresponding steel support 8. Flanges 10 are provided at both the upper and lower ends of each pipe 31. Brackets 9 are respectively provided on the outer walls of both sides of each pipe 31 for clamping with the steel supports 8. A concrete platform boss 7 is provided on the concrete platform 2, and the steel supports 8 are installed on the concrete platform boss 7. The steel supports 8 include: four channel steels 5 arranged in a rectangular shape; wherein adjacent channel steels 5 are connected by channel steels 6.

[0026] In use, the original exhaust chimney is installed with prefabricated pipes 31. The prefabricated pipes 31 are suspended and placed on each concrete platform 2. Steel supports 8 are made. First, the brackets 9 of the pipes 31 on the uppermost concrete platform 2 are suspended on the steel supports 8. The pipes 31 are adjusted and fixed to complete the installation of the uppermost pipes 31. Similarly, the upper pipes 31 of each concrete platform 2 are installed downwards step by step. The pipes 31 are connected to each other by flanges 10 or expansion joints to complete the installation of the chimney liner 3.

[0027] When the original exhaust chimney is overhauled and replaced, the chimney liner 3 is gradually removed starting from the bottom of the chimney. After the chimney liner 3 is removed, the steel supports 8 on each concrete platform 2 are removed to complete the dismantling work.

[0028] For the replacement and expansion of the exhaust chimney, prefabricate the bracket 9, pipe 31, and flange 10. Based on the reserved hole size of the chimney concrete platform 2 and the chimney inner liner 3, determine the size of the pipe 31 and flange 10 and enlarge them.

[0029] During installation, the bracket 9, pipe 31, flange 10, channel steel 1 5, and channel steel 2 6 are hoisted and placed on each concrete platform 2. After hoisting, pipe 31 and steel support 8 are fabricated on each concrete platform 2. After fabrication, the bracket 9 of pipe 31 on the top concrete platform 2 is placed on the fabricated steel support 8. Pipe 31 is adjusted and fixed to complete the installation of the top pipe 31. Similarly, the upper pipes 31 of each concrete platform 2 are installed step by step downwards. The pipes 31 are connected to each other by flange 10 or expansion joint to complete the installation of the chimney liner 3.

[0030] On each concrete platform 2, pipes 31 and steel supports 8 are fabricated. Due to the size limitation of the pre-reserved holes in the concrete of the chimney liner 3, pipes 31 cannot be hoisted if they are prefabricated in advance. Therefore, brackets 9, pipes 31, flanges 10, channel steel 1 5, and channel steel 2 6 are hoisted and placed on each concrete platform 2. After hoisting, pipes 31 and steel supports 8 are fabricated on each concrete platform 2 to ensure the normal installation of the exhaust chimney.

[0031] This invention saves time in organizing cranes or erecting scaffolding, and enables rapid inspection and replacement of lateral mixing equipment without the use of cranes or scaffolding.

[0032] This utility model provides a method for expanding the capacity of exhaust gas chimneys. It requires less investment and takes less time, and is suitable for the rapid expansion of concrete or steel structure exhaust gas chimneys. By rapidly expanding the capacity of the exhaust gas chimney, the exhaust gas emission requirements can be met.

[0033] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A replacement and expansion device for exhaust gas chimneys, characterized in that, include: The chimney liner (3) is composed of several pipes (31) with increased diameter connected to each other, wherein the bottom of the chimney liner (3) is connected to the exhaust gas inlet flue (4); A steel support (8) of the same number as the pipe (31) is set on a concrete platform (2) on the inner wall of the concrete cylinder (1); Each pipe (31) is clamped onto a corresponding steel bracket (8).

2. The exhaust gas chimney replacement and expansion device according to claim 1, characterized in that, Flanges (10) are provided at both the upper and lower ends of the pipe (31).

3. The exhaust gas chimney replacement and expansion device according to claim 1, characterized in that, Brackets (9) are provided on the outer walls of both sides of the pipe (31) for interlocking with the steel support (8).

4. The exhaust gas chimney replacement and expansion device according to claim 1, characterized in that, The concrete platform (2) is provided with a concrete platform boss (7), and a steel support (8) is provided on the concrete platform boss (7).

5. The exhaust gas chimney replacement and expansion device according to claim 1, characterized in that: The steel support (8) includes; Four channel steels (5) are arranged in a rectangular shape; Among them, two adjacent channel steels (5) are connected by channel steel (6).

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