Gasification process burner
By installing a protective cover on the outside of the burner body of the gasification process, the problem of burner being damaged by vibration and high-temperature gas impact is solved, and the stability and airtightness of the burner are improved, and the service life is extended.
Patent Information
- Application Number
- CN202421475228.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-06-26
AI Technical Summary
The gasification process burner is easily damaged by vibration and high-temperature gas impact during the operation of the gasification furnace, resulting in a shortened service life and affecting the gasification efficiency of coal slurry.
A gasification process burner is designed. By installing a protective cover on the outside of the burner body, including an arc-shaped refractory cover plate and a clamp, it is fixed on the top surface of the gasification furnace on the circumference of the burner mouth, filling the gap between the burner body and the combustion port to prevent high-temperature gas from contacting.
The stability and airtightness of the burner in the gasification process are enhanced, the damage of vibration and high-temperature gases to the burner is avoided, and the service life of the burner is extended.
Smart Images
Figure CN222795518U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gasification reaction equipment, and more specifically to a gasification process burner. Background Art
[0002] In coal chemical gasification production, the gasification process burner is the core component of the gasifier, and its performance and service life play a decisive role in production. In the actual production process, the service life of the gasification process burner will be reduced due to different factors, which will have different degrees of impact on the continuous production of the system. First, after the gasification process burner and the gasifier are fixed and installed, the parts connecting the high-pressure coal slurry pipeline and the high-pressure oxygen pipeline also need to be strengthened and fixed. The continuous operation of the gasifier will cause the body to vibrate with different amplitudes. As a rigid device, the continuous vibration of the gasification burner will produce stress on the burner, causing the burner to deform, especially for the opposed water-coal slurry gasifier. The deformation of the burner will cause a certain angle error in the direction of the coal slurry injection, which will affect the flow field in the rapid flow area and thus affect the gasification efficiency of the coal slurry; secondly, under the condition of continuous high-temperature combustion at 1300°C in the combustion chamber of the gasifier, the casting material around the process coil in the front section of the gasification burner will crack due to continuous high-temperature baking, causing a gap between the process burner chamber and the combustion chamber of the gasifier, and a large amount of high-temperature gas will flow into the process burner chamber through the gap. The continuous impact of the high-temperature gas will cause the cooling water pipeline and the coal slurry pipeline to be burned through, causing damage to the burner.
[0003] Therefore, how to provide a gasification process burner with high stability and not prone to damage is a technical problem that technical personnel in this field need to solve urgently. Utility Model Content
[0004] In view of this, the utility model aims to provide a gasification process burner with high stability and not prone to damage.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A gasification process burner, comprising a burner body and a mounting flange, wherein the burner body is provided with a feed inlet at the top and a nozzle at the bottom, the lower end of the burner body extends into the burner port of a gasifier and the nozzle is communicated with the inner cavity of the gasifier, the mounting flange is fixed to the middle of the burner body, and the mounting flange is fixed to the top surface of the gasifier on the peripheral side of the burner port; and further comprising:
[0007] A protective cover, the protective cover comprising two arc-shaped refractory cover plates, the two arc-shaped refractory cover plates are symmetrically arranged and embraced on the outer wall surface of the lower part of the burner body, the outer side walls of the arc-shaped refractory cover plates are tightly fitted on the inner side walls of the burner mouth, and the top of the arc-shaped refractory cover plates abuts against the annular surface of the mounting flange, and the bottom extends toward the inner cavity of the gasifier;
[0008] A plurality of clamps are arranged at intervals along the axial direction of the arc-shaped fire-resistant cover plate and sleeved on the outer side wall of the arc-shaped fire-resistant cover plate to fix the two arc-shaped fire-resistant cover plates.
[0009] The utility model can achieve the following beneficial effects: by adding a protective cover to the outside of the burner body, the burner and the inner wall of the burner mouth are closely fitted, thereby enhancing the stability of the gasification process burner during the operation of the gasifier and avoiding the influence of the vibration of the gasifier; at the same time, the protective cover can fill the gap between the burner body and the burner mouth, preventing the high-temperature gas in the gasifier from entering the inner cavity of the burner mouth and contacting the burner body, causing damage to the burner body. The process burner has good stability and airtightness, and a long service life.
[0010] Furthermore, the cooling assembly includes an inlet pipe, a cooling water coil and a return pipe. The two symmetrically arranged joints of the two arc-shaped refractory cover plates are respectively reserved with an inlet pipe passage and a return pipe passage. The inlet pipe is inserted into the inlet pipe passage and its water inlet end passes through the mounting flange arrangement. The cooling water coil is wound on the lower outer wall of the burner body near the nozzle, and its top abuts against the bottom end face of the arc-shaped refractory cover plate. The inlet end of the cooling water coil is connected to the water outlet end at the bottom of the inlet pipe; the return pipe is inserted into the return pipe passage, and its bottom water inlet end is connected to the water outlet end of the cooling water coil, and the top water outlet end passes through the mounting flange arrangement.
[0011] Furthermore, each of the arc-shaped refractory cover plates includes a cover plate body and a plurality of reinforcing ribs, the cover plate body being arranged on the outer side wall of the burner body, the plurality of reinforcing ribs being arranged at intervals along the circumferential direction of the arc-shaped refractory cover plate and the length direction of each of the reinforcing ribs being arranged along the axial direction of the arc-shaped refractory cover plate and embedded in the cover plate body.
[0012] Furthermore, the cover plate body is made of chromium-aluminum-zirconium material.
[0013] Furthermore, the cover plate body and the plurality of reinforcing ribs are integrally cast.
[0014] Furthermore, the thickness of the cover plate body is 10 to 20 mm.
[0015] Furthermore, the length of the reinforcing rib is the same as the length of the cover plate body.
[0016] Furthermore, the diameter of the reinforcing rib is 6 mm.
[0017] Furthermore, the reinforcing ribs are steel bars.
[0018] Furthermore, the clamp is a steel hoop.
[0019] It can be seen from the above technical solutions that compared with the prior art, the utility model discloses a gasification process burner, which provides a protective cover on the outside of the burner body so that the burner and the inner wall of the burner port are closely fitted, thereby enhancing the stability of the gasification process burner during the operation of the gasifier and avoiding the influence of the vibration of the gasifier; at the same time, the protective cover can fill the gap between the burner body and the burner port to prevent the high-temperature gas in the gasifier from contacting the burner body and causing damage to the burner body. The process burner has good stability and airtightness, and can extend the service life of the burner. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.
[0021] Figure 1 The utility model provides a structural schematic diagram of a gasification process burner installed on a gasification furnace.
[0022] Figure 2 The utility model provides a three-dimensional structural schematic diagram of a gasification process burner.
[0023] Figure 3 The utility model provides a side view schematic diagram of the structure of a gasification process burner.
[0024] Figure 4 The utility model provides a schematic diagram of the explosion structure of a gasification process burner.
[0025] Figure 5 for Figure 3 Schematic diagram of the cross-sectional structure of the AA part.
[0026] In the figure: 1. burner body, 11. nozzle, 2. mounting flange, 3. protective cover, 31. cover plate body, 32. reinforcing ribs, 4. clamp, 5. cooling assembly, 51. water inlet pipe, 52. cooling water coil, 53. return pipe, 6. gasifier. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0029] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0030] See also Figure 1-Figure 5 The utility model embodiment discloses a gasification process burner, including a burner body 1 and a mounting flange 2, wherein the burner body 1 is provided with a feed port at the top and a nozzle 11 at the bottom, the lower end of the burner body 1 extends into the burner port of the gasifier 6 and the nozzle 11 is communicated with the inner cavity of the gasifier 6, the mounting flange 2 is fixed in the middle of the burner body 1, and the mounting flange 2 is fixed on the top surface of the gasifier 6 on the side around the burner port, and further comprises:
[0031] The protective cover 3 includes two arc-shaped refractory cover plates, which are symmetrically arranged and embraced on the outer wall surface of the lower part of the burner body 1. The outer wall of the arc-shaped refractory cover plate is tightly fitted on the inner wall of the burner mouth, and the top of the arc-shaped refractory cover plate is in contact with the annular surface of the mounting flange 2, and the bottom extends to the inner cavity of the gasifier 6;
[0032] A plurality of clamps 4 are arranged at intervals along the axial direction of the arc-shaped fire-resistant cover plates and sleeved on the outer side wall of the ring protection cover to fix the two arc-shaped fire-resistant cover plates.
[0033] The utility model installs a protective cover on the outer side of the burner body 1 so that the burner fits tightly against the inner wall of the burner mouth, thereby enhancing the stability of the gasification process burner during the operation of the gasification furnace 6 and avoiding the influence of the vibration of the gasification furnace 6; at the same time, the protective cover can fill the gap between the burner body 1 and the burner mouth to prevent the high-temperature gas in the gasification furnace 6 from contacting the burner body 1 and causing damage to the burner body 1. The protective cover of the burner of this process can protect the burner body 1 and extend the service life of the burner.
[0034] like Figure 2-3 A cooling assembly 5 is also provided, which includes an inlet pipe 51, a cooling water coil 52 and a return pipe 53. The two arc-shaped refractory cover plates are symmetrically arranged on both sides along the circumferential direction of the butt joints with an inlet pipe passage and a return pipe passage are reserved respectively. The inlet pipe 51 is inserted into the inlet pipe passage and its water inlet end extends upward through the mounting flange 2. The cooling water coil 52 is wound around the outer wall of the lower part of the burner body 1 near the nozzle 11 and its top abuts against the bottom end face of the arc-shaped refractory cover plate. The inlet end of the cooling water coil 52 is connected to the water outlet end at the bottom of the inlet pipe 51; the return pipe 53 is inserted into the return pipe passage, and its bottom water inlet end is connected to the water outlet end of the cooling water coil 52, and the top water outlet end extends upward through the mounting flange 2. The cooling assembly 5 is used to cool the inside of the burner body 1 to prevent the internal temperature of the burner from being too high, and the connection between the two sides of the arc-shaped refractory cover plate and the water inlet pipe 51 and the water return pipe 53 are tightly fitted to enhance air tightness.
[0035] See also Figure 3-5 Each arc-shaped refractory cover plate includes a cover plate body 31 and a plurality of reinforcing ribs 32. The cover plate body 31 is arranged on the outer wall of the burner body 1. The plurality of reinforcing ribs 32 are arranged at intervals along the circumferential direction of the cover plate body 31, and the length direction of each reinforcing rib 32 is arranged along the axial direction of the cover plate body 31 and fixed in the cover plate body 31. The reinforcing ribs 32 play a role in strengthening the cover plate structure and preventing the cover plate body 31 from being damaged.
[0036] Preferably, the cover plate body 31 is made of chromium-aluminum-zirconium material, which has excellent fire resistance.
[0037] Preferably, the cover plate body 31 and the plurality of reinforcing ribs 32 are integrally cast.
[0038] Preferably, the thickness of the cover plate body 31 is 10-20 mm.
[0039] Preferably, the length of the reinforcing rib 32 is the same as the length of the cover plate body 31 .
[0040] Preferably, the diameter of the reinforcing rib 32 is 6 mm.
[0041] Preferably, the reinforcing ribs 32 are made of steel bars.
[0042] Preferably, the clamp 4 is a steel clamp.
[0043] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.
[0044] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A gasification process burner, comprising a burner body (1) and a mounting flange (2), wherein the burner body (1) is provided with a feed inlet at the top and a nozzle (11) at the bottom, the lower end of the burner body (1) extends into the burner mouth of a gasifier (6) and the nozzle (11) is communicated with the inner cavity of the gasifier (6), the mounting flange (2) is fixed to the middle of the burner body (1), and the mounting flange (2) is fixed to the top surface of the gasifier (6) on the side around the burner mouth, characterized in that: Also includes: A protective cover (3), the protective cover (3) comprising two arc-shaped refractory cover plates, the two arc-shaped refractory cover plates being symmetrically arranged and embracing the outer wall surface of the lower part of the burner body (1), the outer wall of the arc-shaped refractory cover plate being tightly fitted on the inner wall of the burner mouth, and the top of the arc-shaped refractory cover plate being in contact with the annular surface of the mounting flange (2), and the bottom extending toward the inner cavity of the gasifier (6); A plurality of clamps (4) are arranged at intervals along the axial direction of the arc-shaped fire-resistant cover plate and are arranged on the outer side wall of the protection cover to fix the two arc-shaped fire-resistant cover plates.
2. A gasification process burner according to claim 1, characterized in that: A cooling assembly (5) is also provided, the cooling assembly (5) comprising an inlet pipe (51), a cooling water coil (52) and a return pipe (53), two symmetrically arranged joints of the two arc-shaped fire-resistant cover plates respectively reserved for an inlet pipe passage and a return pipe passage, the inlet pipe (51) is inserted into the inlet pipe passage and its inlet end passes through the mounting flange (2), the cooling water coil (52) is wound around the lower outer wall of the burner body (1) near the nozzle (11), and its top abuts against the bottom end face of the arc-shaped fire-resistant cover plate, the inlet end of the cooling water coil (52) is connected to the outlet end at the bottom of the inlet pipe (51); the return pipe (53) is inserted into the return pipe passage, its bottom inlet end is connected to the outlet end of the cooling water coil (52), and the top outlet end passes through the mounting flange (2).
3. A gasification process burner according to any one of claims 1-2, characterized in that: Each of the arc-shaped fire-resistant cover plates comprises a cover plate body (31) and a plurality of reinforcing ribs (32); the cover plate body (31) is arranged on the outer wall of the burner body (1); the plurality of reinforcing ribs (32) are arranged at intervals along the circumferential direction of the cover plate body (31); and the length direction of each reinforcing rib (32) is arranged along the axial direction of the cover plate body (31) and is embedded in the cover plate body (31).
4. A gasification process burner according to claim 3, characterized in that: The cover plate body (31) is made of chromium-aluminum-zirconium material.
5. A gasification process burner according to claim 4, characterized in that: The cover plate body (31) and the plurality of reinforcing ribs (32) are integrally cast and formed.
6. A gasification process burner according to claim 3, characterized in that: The thickness of the cover plate body (31) is 10-20 mm.
7. A gasification process burner according to claim 3, characterized in that: The length of the reinforcing rib (32) is the same as the length of the cover plate body (31).
8. A gasification process burner according to claim 3, characterized in that: The diameter of the reinforcing rib (32) is 6 mm.
9. A gasification process burner according to claim 3, characterized in that: The reinforcing ribs (32) are steel bars.
10. A gasification process burner according to claim 1, characterized in that: The clamp (4) is a steel hoop.