Urea pyrolysis furnace for SCR denitration

CN224712071UActive Publication Date: 2026-09-04HEBEI WANXU ENVIRONMENTAL GRP CO LTD
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Patent Information

Application Number
CN202521706756.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-12
Publication Date
2026-09-04
Estimated Expiration
2035-08-12

AI Technical Summary

Technical Problem

[0003]尿素热解炉为一个较为长的筒体结构,其结构较长,安装时单纯的通过底部法兰连接,其稳定性欠佳,在设备运行时,产生振动,实现异常,很容易出现稳固性下降的问题,对此,我们设计一种能够提高稳定性的SCR脱硝的尿素热解炉

Benefits of technology

[0011] This utility model features a pyrolysis furnace, supporting components, and reinforcing parts. By flipping the supporting rods so that their bottom mounting feet contact the ground or ground stakes, and fixing them with anchors passing through the first mounting holes on the mounting feet, the pyrolysis furnace is effectively stabilized by a number of supporting rods arranged at equal intervals. This effectively solves the problems raised in the background art, achieves the effect of reinforcing and supporting the pyrolysis furnace, and the supporting rods can be folded up and fixed without hindering transportation.

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Abstract

The utility model discloses a kind of urea pyrolysis furnaces for SCR denitration, including pyrolysis furnace, the outer wall of pyrolysis furnace is equipped with support piece, the support piece includes the mounting ring of fixedly sleeving in the lower part of pyrolysis furnace outer wall, the top of the mounting ring is equidistant and is equipped with several installation port, and installation port is rotatably connected with support bar, the outer wall of pyrolysis furnace is equipped with the lock piece of corresponding support bar, and lock piece is used to fix corresponding support bar, the top of support bar is rotatably connected with mounting foot, and first mounting hole is opened in mounting foot, the lock piece includes the U-shaped work piece of being fixed in pyrolysis furnace outer wall, screw hole is opened in the U-shaped work piece, second mounting hole is opened in second mounting hole, the U-shaped work piece is fixed by first bolt through second mounting hole in the U-shaped work piece.The utility model, realize the effect of reinforcing support to pyrolysis furnace, and support bar can be retracted and fixed, do not hinder transportation.
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Description

Technical Field

[0001] This utility model relates to the field of pyrolysis furnace technology, and in particular to a urea pyrolysis furnace for SCR denitrification. Background Technology

[0002] Urea is used as a reducing agent in SCR denitrification, and the main processes for producing ammonia include pyrolysis and hydrolysis. Among these, pyrolysis ammonia production is increasingly being adopted by power plants due to its simple system, low investment cost, stable operation, and low maintenance. Currently, urea pyrolysis in SCR denitrification mainly uses pyrolysis furnaces. The main function of the urea pyrolysis furnace is to use high-temperature hot gas to thermally decompose urea molecules, thereby producing ammonia.

[0003] The urea pyrolysis furnace is a relatively long cylindrical structure. Due to its length, the simple connection via the bottom flange during installation results in poor stability. During operation, vibrations occur, leading to malfunctions and a decrease in stability. To address this, we designed a SCR denitrification urea pyrolysis furnace that can improve stability. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a urea pyrolysis furnace for SCR denitrification.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A urea pyrolysis furnace for SCR denitrification includes a pyrolysis furnace, a support member installed on the outer wall of the pyrolysis furnace, the support member including an installation ring fixedly sleeved on the lower part of the outer wall of the pyrolysis furnace, a plurality of installation openings equidistantly opened on the top of the installation ring, and a support rod rotatably connected in the installation opening, the outer wall of the pyrolysis furnace is equipped with a locking member corresponding to the support rod, and the locking member is used to fix the corresponding support rod.

[0007] As a further embodiment of this utility model, the top of the support rod is rotatably connected to a mounting foot, and the mounting foot is provided with a first mounting hole.

[0008] As a further embodiment of this utility model, the locking component includes a U-shaped workpiece fixed to the outer wall of the pyrolysis furnace. The U-shaped workpiece has a screw hole, and the second mounting hole has a second mounting hole. The U-shaped workpiece is located inside the U-shaped workpiece and is fixed by a first bolt passing through the second mounting hole.

[0009] As a further embodiment of this utility model, the reinforcing component includes a first arc-shaped clamping plate and a second arc-shaped clamping plate. The first arc-shaped clamping plate and the second arc-shaped clamping plate are fixed together by a second bolt. The first arc-shaped clamping plate and the second arc-shaped clamping plate wrap around the outer wall of a plurality of support rods. The inner wall of the first arc-shaped clamping plate and the second arc-shaped clamping plate has a limiting groove corresponding to the position of the support rod. The limiting groove is adapted to the support rod. The support rod can be rotated 180 degrees. The reinforcing component includes a first arc-shaped clamping plate, a second arc-shaped clamping plate and a limiting groove. The support rod can be rotated 180 degrees so that the support rod is close to the equipment of the same diameter connected to the bottom of the pyrolysis furnace. The first arc-shaped clamping plate and the second arc-shaped clamping plate are taken out and held on the outer wall of the support rod. The second bolt is used for reinforcement to achieve stability between the pyrolysis furnace and the equipment connected to it.

[0010] The beneficial effects of this utility model are as follows:

[0011] This utility model features a pyrolysis furnace, supporting components, and reinforcing parts. By flipping the supporting rods so that their bottom mounting feet contact the ground or ground stakes, and fixing them with anchors passing through the first mounting holes on the mounting feet, the pyrolysis furnace is effectively stabilized by a number of supporting rods arranged at equal intervals. This effectively solves the problems raised in the background art, achieves the effect of reinforcing and supporting the pyrolysis furnace, and the supporting rods can be folded up and fixed without hindering transportation.

[0012] This utility model: The reinforcement includes a first arc-shaped clamp, a second arc-shaped clamp, and a limiting groove. The support rod can be rotated 180 degrees so that it is close to the equipment of the same diameter connected to the bottom of the pyrolysis furnace. The first and second arc-shaped clamps are then removed and placed on the outer wall of the support rod, and reinforced by a second bolt to achieve stability between the pyrolysis furnace and the connected equipment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the first three-dimensional structure of a urea pyrolysis furnace for SCR denitrification proposed in this utility model.

[0014] Figure 2 This is a schematic diagram of the second three-dimensional structure of a urea pyrolysis furnace for SCR denitrification proposed in this utility model;

[0015] Figure 3 This is a partial three-dimensional structural diagram of a urea pyrolysis furnace for SCR denitrification proposed in this utility model.

[0016] Figure 4 This invention proposes a urea pyrolysis furnace for SCR denitrification. Figure 2 Enlarged 3D structural diagram at point A.

[0017] In the figure: 1. Pyrolysis furnace; 2. Support component; 3. Reinforcing component; 4. Mounting ring; 5. Support rod; 6. Mounting foot; 7. First mounting hole; 8. U-shaped workpiece; 9. First bolt; 10. First arc-shaped clamping plate; 11. Second arc-shaped clamping plate; 12. Limiting groove; 13. Second bolt; 14. Second mounting hole. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] Reference Figure 1-4 A urea pyrolysis furnace for SCR denitrification includes a pyrolysis furnace 1. A support member 2 is installed on the outer wall of the pyrolysis furnace 1. The support member 2 includes an installation ring 4 fixedly sleeved on the lower part of the outer wall of the pyrolysis furnace 1. The top of the installation ring 4 has several installation openings at equal intervals, and a support rod 5 is rotatably connected in the installation opening. A locking member corresponding to the support rod 5 is installed on the outer wall of the pyrolysis furnace 1, and the locking member is used to fix the corresponding support rod 5.

[0021] In this embodiment, the top of the support rod 5 is rotatably connected to a mounting foot 6, and the mounting foot 6 is provided with a first mounting hole 7.

[0022] In this embodiment, the locking component includes a U-shaped workpiece 8 fixed to the outer wall of the pyrolysis furnace 1. The U-shaped workpiece 8 has a screw hole, and the second mounting hole 14 has a second mounting hole 14. The U-shaped workpiece 8 is located inside the U-shaped workpiece 8 and is fixed by the first bolt 9 passing through the second mounting hole 14.

[0023] In this embodiment, the reinforcement 3 includes a first arc-shaped clamping plate 10 and a second arc-shaped clamping plate 11. The first arc-shaped clamping plate 10 and the second arc-shaped clamping plate 11 are fixed together by a second bolt 13. The first arc-shaped clamping plate 10 and the second arc-shaped clamping plate 11 wrap around the outer wall of a plurality of support rods 5. The inner wall of the first arc-shaped clamping plate 10 and the second arc-shaped clamping plate 11 is provided with a limiting groove 12 corresponding to the position of the support rod 5. The limiting groove 12 is adapted to the support rod 5. The support rod 5 can be rotated 180 degrees. The reinforcement 3 includes a first arc-shaped clamping plate 10, a second arc-shaped clamping plate 11 and a limiting groove 12. The support rod 5 can be rotated 180 degrees so that the support rod 5 is close to the equipment of the same diameter connected to the bottom of the pyrolysis furnace 1. The first arc-shaped clamping plate 10 and the second arc-shaped clamping plate 11 are taken out and held on the outer wall of the support rod 5. The second bolt 13 is used for reinforcement to achieve stability between the pyrolysis furnace 1 and the connected equipment.

[0024] Working principle: The system employs a pyrolysis furnace 1, support components 2, and reinforcing components 3. Support component 2 includes a mounting ring 4, support rods 5, and mounting feet 6, and is equipped with locking devices to secure the support rods 5. During installation of the pyrolysis furnace 1, to enhance stability, the first bolt 9 can be removed, and the support rod 5 can be flipped so that its bottom mounting feet 6 contact the ground or a ground stake. Anchor nails are then used to secure the support rods 6 through the first mounting holes 7 on the mounting feet 6. Several support rods 5 are equidistantly positioned to support the pyrolysis furnace 1, effectively ensuring its stability. This invention effectively solves the problems raised in the background technology, achieving the effect of reinforcing and supporting the pyrolysis furnace 1. The support rod 5 can be retracted and fixed without hindering transportation. The reinforcement component 3 includes a first arc-shaped clamping plate 10, a second arc-shaped clamping plate 11, and a limiting groove 12. The support rod 5 can be rotated 180 degrees, so that the support rod 5 is close to the equipment of the same diameter connected to the bottom of the pyrolysis furnace 1. The first arc-shaped clamping plate 10 and the second arc-shaped clamping plate 11 are removed and held on the outer wall of the support rod 5. The support rod 5 is then reinforced by the second bolt 13, thereby achieving stability between the pyrolysis furnace 1 and the connected equipment.

[0025] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A urea pyrolysis furnace for SCR denitrification, comprising a pyrolysis furnace (1), characterized in that, The outer wall of the pyrolysis furnace (1) is equipped with a support member (2). The support member (2) includes an installation ring (4) fixedly sleeved on the lower part of the outer wall of the pyrolysis furnace (1). The top of the installation ring (4) is provided with several installation openings at equal intervals, and a support rod (5) is rotatably connected in the installation opening. The outer wall of the pyrolysis furnace (1) is equipped with a locking member corresponding to the support rod (5), and the locking member is used to fix the corresponding support rod (5).

2. The urea pyrolysis furnace for SCR denitrification according to claim 1, characterized in that, The top of the support rod (5) is rotatably connected to a mounting foot (6), and a first mounting hole (7) is provided on the mounting foot (6).

3. A urea pyrolysis furnace for SCR denitrification according to claim 2, characterized in that, The locking component includes a U-shaped workpiece (8) fixed to the outer wall of the pyrolysis furnace (1). The U-shaped workpiece (8) has a screw hole, and the support rod (5) has a second mounting hole (14). The screw hole of the U-shaped workpiece (8) is aligned with the second mounting hole (14) of the support rod (5), and the support rod (5) is fixed inside the U-shaped workpiece (8) by passing a first bolt (9) through the screw hole and the second mounting hole (14).

4. A urea pyrolysis furnace for SCR denitrification according to claim 1, characterized in that, It also includes a reinforcement member (3), which includes a first arc-shaped clamp (10) and a second arc-shaped clamp (11). The first arc-shaped clamp (10) and the second arc-shaped clamp (11) are fixed together by a second bolt (13), and the first arc-shaped clamp (10) and the second arc-shaped clamp (11) are wrapped around the outer wall of a plurality of support rods (5).

5. A urea pyrolysis furnace for SCR denitrification according to claim 4, characterized in that, The inner walls of the first arc-shaped clamp (10) and the second arc-shaped clamp (11) are provided with limiting grooves (12) corresponding to the position of the support rod (5), and the limiting grooves (12) are adapted to the support rod (5).

6. A urea pyrolysis furnace for SCR denitrification according to claim 1, characterized in that, The support rod (5) can be rotated 180 degrees.