Support structure of the furnace cover of the waste heat boiler of the fumigation furnace

Abstract

This invention discloses a support structure for a waste heat boiler hood of a flue gas treatment furnace, comprising: a base located outside the hood, a support seat mounted on the base, the support seat including: a bottom plate, on which a support plate is mounted; a connecting shell mounted inside the support plate, the connecting shell including: a connecting plate, side plates on both sides of the connecting plate, and a connecting top plate and a connecting bottom plate respectively mounted on the top and bottom of the connecting plate; the connecting plate is connected to the support plate and can move upward relative to the support plate; the connecting shell is fixed to the hood. The advantages of this invention are: it provides a novel support structure that is not limited by the height of the plant; it provides horizontal and vertical release space for the thermal expansion of the hood, thus effectively meeting the deformation requirements of the hood under heat, thereby greatly improving the stability of the hood installation and effectively ensuring the stable operation of the boiler.

Description

Technical Field

[0001] The invention relates to the technical field of waste heat boiler equipment, and in particular to a mounting structure of a furnace cover of a waste heat boiler of a fumigation furnace. Background Art

[0002] Fuming furnace mainly refers to non-ferrous smelting furnace, such as nickel smelting furnace. The temperature of flue gas generated in the non-ferrous smelting process is high. When the high-temperature flue gas enters the waste heat boiler from the furnace cover at the entrance of the waste heat boiler, it will scour the furnace cover and cause the furnace cover to expand and deform.

[0003] Usually, the furnace cover of the waste heat boiler of the fumigation furnace is supported by a suspension type. Suspension support requires the installation of suspension rods and suspension beams. However, the furnace cover is often limited by the plant structure and the size of the furnace cover during installation, and the suspension support method cannot be adopted. Therefore, it is necessary to develop a new support structure for the furnace cover. Summary of the invention

[0004] The purpose of the present invention is to provide a novel support structure for a furnace cover of a waste heat boiler of a fumigation furnace, which has a stable support and can meet the expansion requirements of the furnace cover.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: the supporting structure of the furnace hood of the waste heat boiler of the fumigation furnace comprises: a base located on the outside of the furnace hood, a support seat is arranged on the base, the support seat comprises: a bottom plate, a support plate is arranged on the bottom plate; a connecting shell is arranged on the inner side of the support plate, the connecting shell comprises: a connecting plate, side plates are arranged on both sides of the connecting plate, a connecting top plate and a connecting bottom plate are respectively arranged on the top and bottom of the connecting plate, the connecting top plate and the connecting bottom plate are respectively welded and fixed to the side plate and the connecting plate; the connecting plate is connected to the support plate, and the connecting plate can move upward relative to the support plate; the connecting shell is fixed to the furnace hood.

[0006] Furthermore, the supporting structure of the furnace cover of the waste heat boiler of the aforementioned fumigation furnace, wherein a steel plate is welded and fixed on the top of the base, a base top plate made of stainless steel is welded and fixed on the steel plate, a groove is opened on the base top plate, a polytetrafluoroethylene plate is arranged in the groove, and the polytetrafluoroethylene plate protrudes from the groove; the bottom plate of the support seat is placed on the polytetrafluoroethylene plate.

[0007] Furthermore, the supporting structure of the furnace hood of the waste heat boiler of the aforementioned fumigation furnace, wherein the connecting structure connecting the shell and the furnace hood comprises: a U-shaped plate is arranged on the outer side of the furnace hood, the U-shaped plate is fixedly connected to the furnace hood by welding through a comb-shaped plate, and the connecting top plate, connecting bottom plate and side plates of the connecting shell are all fixed to the U-shaped plate.

[0008] Furthermore, in the aforementioned support structure of the furnace cover of the waste heat boiler of the fumigation furnace, reinforcing plates are welded and fixedly provided on the top and bottom of the U-shaped plate, and the reinforcing plates are fixed to the comb-shaped plates, and the reinforcing plates are fixed to the connecting shell.

[0009] Furthermore, the aforementioned support structure of the hood of the waste heat boiler of the fumigation furnace has a plurality of vertical long connecting holes on the support plate, and the connecting plate and the support plate are connected by bolts at the long connecting holes, and each bolt can move upward in the corresponding long connecting hole.

[0010] Furthermore, in the aforementioned support structure of the furnace cover of the waste heat boiler of the fumigation furnace, a reinforcing rib plate is arranged between the support plate and the bottom plate.

[0011] Furthermore, in the aforementioned support structure of the furnace cover of the waste heat boiler of the fumigation furnace, a connecting top plate connecting the shell is arranged to be inclined upward.

[0012] The advantages of the present invention are: 1. The structure is simple, and a new type of support structure is provided for the furnace cover, which is not limited by the height of the factory building and has good stability. 2. The support structure provides a horizontal release space and a vertical release space for the furnace cover to expand due to heat, so that the requirements for the deformation of the furnace cover due to heat can be well met, thereby greatly improving the stability of the furnace cover installation and effectively ensuring the stable operation of the boiler. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the supporting structure of the furnace cover of the waste heat boiler of the fumigation furnace described in the present invention.

[0014] Figure 2 yes Figure 1 Schematic diagram of the structure in the AA section direction.

[0015] Figure 3 yes Figure 1 An enlarged structural diagram of the support structure between the middle base and the support seat.

[0016] Figure 4 yes Figure 1 Schematic diagram of the connection structure between the base and the support base shown in the right viewing direction. DETAILED DESCRIPTION

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0018] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the support structure of the furnace cover of the waste heat boiler of the fumigation furnace includes: a base 2 located outside the furnace cover 1, and a support seat 3 is arranged on the base 2. The support seat 3 includes: a bottom plate 31, a support plate 32 is arranged on the bottom plate 31, and a reinforcing rib plate 33 is arranged between the support plate 32 and the bottom plate 31, and the reinforcing rib plate 33 can increase the strength of the support seat 3. Figure 1 The figure is only a part of the furnace cover 1. Usually, in order to absorb the heat of the flue gas, the furnace cover 1 also adopts a water-cooled wall structure.

[0019] A connecting shell 4 is arranged inside the support plate 32, and the connecting shell 4 comprises: a connecting plate 41, side plates 42 are arranged on both sides of the connecting plate 41, and a connecting top plate 43 and a connecting bottom plate 44 are arranged on the top and bottom of the connecting plate 41, respectively, and the connecting top plate 43 is arranged upwardly inclined. The connecting top plate 43 and the connecting bottom plate 44 are welded and fixed to the side plates 42 and the connecting plate 41, respectively. The connecting plate 41 is connected to the support plate 32, and the connecting plate 41 can move upward relative to the support plate 32; the connecting shell 4 is fixed to the furnace cover 1.

[0020] In this embodiment, a steel plate 21 is welded and fixed on the top of the base 2, and a stainless steel base top plate 22 is welded and fixed on the steel plate 21. A groove 221 is provided on the base top plate 22, and a polytetrafluoroethylene plate 23 is provided in the groove 221. The polytetrafluoroethylene plate 23 has good wear resistance. The polytetrafluoroethylene plate 23 protrudes from the groove 221. The bottom plate 31 of the support seat 3 is placed on the polytetrafluoroethylene plate 23. In order to improve the smoothness of the bottom plate 31, a bottom stainless steel plate 311 is also provided at the bottom of the bottom plate 31.

[0021] In this embodiment, the connection structure between the connection shell 4 and the furnace cover 1 includes: a U-shaped plate 5 is arranged on the outside of the furnace cover 1, the U-shaped plate 5 is welded and fixedly connected to the furnace cover 1 through a comb-shaped plate 6, and the connection top plate 43, the connection bottom plate 44 and the side plate 42 of the connection shell 4 are all welded and fixed to the U-shaped plate 5. A reinforcing plate 51 is welded and fixedly arranged on the top and bottom of the U-shaped plate 5, the reinforcing plate 51 is fixed to the comb-shaped plate 6, and the reinforcing plate 51 is welded and fixed to the connection shell 4.

[0022] The support plate 32 is provided with a plurality of vertical long strip connection holes 321 . The connection plate 41 and the support plate 32 are connected at the long strip connection holes 321 by bolts 7 . Each bolt 7 can move upward in the corresponding long strip connection hole 321 .

[0023] In the above-mentioned support structure, the furnace cover 1 is fixed on the support base 3 through the connecting shell 4, and the support base 3 is supported on the base 2, so that the furnace cover 1 is reliably supported. When the furnace cover 1 expands due to heat, the bottom stainless steel plate 311 of the support base 3 will be displaced on the polytetrafluoroethylene plate 23, thereby releasing the expansion of the furnace cover 1 in the horizontal direction. At the same time, since each bolt 7 can move upward in the corresponding long strip connection hole 321, this provides space for releasing the expansion of the furnace cover 1 in the vertical direction.

[0024] The advantages of the present invention are: 1. The structure is simple, and a new type of support structure is provided for the furnace cover 1. The support structure is not limited by the height of the factory building, and the support structure has good stability. 2. The support structure provides a horizontal release space and a vertical release space for the furnace cover 1 to expand due to heat, so that the requirements for the deformation of the furnace cover due to heat can be well met, thereby greatly improving the stability of the furnace cover installation and effectively ensuring the stable operation of the boiler.

Claims

1. The supporting structure of the hood of the waste heat boiler of the fumigation furnace includes: The base located on the outer side of the furnace hood is characterized in that: a support base is arranged on the base, and the support base includes: a bottom plate, on which a support plate is arranged; a connecting shell is arranged on the inner side of the support plate, and the connecting shell includes: a connecting plate, on both sides of the connecting plate are side plates, and the top and bottom of the connecting plate are respectively provided with a connecting top plate and a connecting bottom plate, and the connecting top plate and the connecting bottom plate are respectively welded and fixed to the side plate and the connecting plate; the connecting plate is connected to the support plate, and the connecting plate can move upward relative to the support plate; the connecting shell is fixed to the furnace hood; a steel plate is welded and fixed on the top of the base, and a base top plate made of stainless steel is welded and fixed on the steel plate, and a groove is opened on the base top plate, and a polytetrafluoroethylene plate is arranged in the groove, and the polytetrafluoroethylene plate protrudes from the groove; the bottom plate of the support base is placed on the polytetrafluoroethylene plate.

2. The supporting structure of the hood of the waste heat boiler of the fumigation furnace according to claim 1 is characterized in that: The connection structure between the shell and the furnace cover includes: a U-shaped plate is arranged on the outside of the furnace cover, the U-shaped plate is fixedly connected to the furnace cover by welding through a comb-shaped plate, and the connection top plate, connection bottom plate and side plates of the connection shell are all fixed to the U-shaped plate.

3. The supporting structure of the hood of the waste heat boiler of the fumigation furnace according to claim 2 is characterized in that: A reinforcing plate is welded and fixedly arranged on the top and bottom of the U-shaped plate. The reinforcing plate is fixed to the comb-shaped plate, and the reinforcing plate is fixed to the connecting shell.

4. The support structure of the hood of the waste heat boiler of the fumigation furnace according to claim 1 or 2, characterized in that: A plurality of vertical long strip connection holes are opened on the support plate, and the connection plate and the support plate are connected by bolts at the long strip connection holes, and each bolt can move upward in the corresponding long strip connection hole.

5. The support structure of the hood of the waste heat boiler of the fumigation furnace according to claim 1 or 2, characterized in that: A reinforcing rib plate is arranged between the support plate and the bottom plate.

6. The support structure of the hood of the waste heat boiler of the fumigation furnace according to claim 1 or 2, characterized in that: The connection top plate of the connection shell is arranged to be inclined upward.

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