Burner for combustion chamber of suspension magnetization roasting furnace

Abstract

The burner comprises a burner sleeve, the burner sleeve comprises a burner front sleeve body and a burner rear sleeve body, the inner ring diameter of the burner rear sleeve body is smaller than that of the burner front sleeve body, clamping grooves are evenly distributed in the inner wall of the burner front sleeve body in the circumferential direction, a burner body is inserted into the burner front sleeve body, and the inner ring diameter of the burner front sleeve body is smaller than that of the burner rear sleeve body. The burner body is a cylinder with a round end face, the cylinder is jointly defined by a plurality of independent modules with fan-shaped end faces, protruding blocks are evenly distributed on the outer wall of the burner body in the circumferential direction, each independent module is provided with a plurality of flow dividing holes in the length direction, and the front end face of the burner body abuts against and makes contact with the rear end face of the inner step. The rear end face of the burner body is flush with the rear end face of the first outer step, and the front end face of the second outer step abuts against and makes contact with the rear end face of the first outer step and the rear end face of the burner body. By using the modularized burner, when the burner is damaged or blocked, only the damaged or blocked module needs to be replaced, so that the use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gas burners, in particular to a burner used in a combustion chamber of a suspended magnetized roasting furnace. Background Art

[0002] The suspension roasting furnace operates the whole system under negative pressure by running the main induced draft fan. The p04 combustion chamber is usually equipped with a direct injection burner, which sprays high-pressure gas through the burner. The iron ore materials with smaller particle size are directly hit on the opposite furnace wall by the impact of high-pressure gas in the main furnace, and stay on the furnace wall for a short time. Under high temperature environment, some fine-grained materials will be instantly melted and attached to the furnace wall to form agglomerates.

[0003] In order to solve the problem of agglomeration on the furnace wall of the combustion chamber, the existing Chinese patent technology "A gas wall-mounted furnace burner" with patent number CN202321155086.6 proposes a detachable multi-hole installation nozzle, which effectively disperses the pressure of high-pressure gas and reduces its impact force, so that the ore will not be impacted on the opposite furnace wall, thereby achieving the purpose of preventing agglomeration on the furnace wall. However, once the multi-hole installation nozzle is damaged or individual diversion holes are blocked, the entire multi-hole installation nozzle can only be replaced, which has a high cost of use and is difficult to repair when damaged.

[0004] Therefore, it is necessary to provide a burner for the combustion chamber of a suspended magnetized roasting furnace to solve the above technical problems. Summary of the invention

[0005] The utility model aims to address the deficiencies in the prior art and provide a burner for a combustion chamber of a suspended magnetized roasting furnace. The burner body is modularized. When the burner is damaged or blocked, only the damaged or blocked module needs to be replaced, thereby reducing the cost of use.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A burner for a combustion chamber of a suspended magnetized roasting furnace comprises a burner sleeve, wherein the burner sleeve comprises a burner front sleeve and a burner rear sleeve, the front end of the burner front sleeve is provided with an inner step, the rear end of the burner front sleeve is provided with a first outer step, the front end of the burner rear sleeve is provided with a second outer step, the inner ring diameter of the burner rear sleeve is smaller than the inner ring diameter of the burner front sleeve, the inner wall of the burner front sleeve is evenly provided with grooves along the circumferential direction, a burner body is inserted into the burner front sleeve, the burner body is a cylinder with a circular end face formed by a plurality of independent modules with fan-shaped end faces, the outer wall of the burner body is evenly provided with protrusions along the circumferential direction, each independent module is provided with a plurality of diversion holes along the length direction, the front end face of the burner body is in abutment with the rear end face of the inner step, the rear end face of the burner body is flush with the rear end face of the first outer step, and the front end face of the second outer step is in abutment with the rear end face of the first outer step and the rear end face of the burner body respectively.

[0008] Preferably, the first outer step and the second outer step are provided with corresponding through holes, and the first outer step and the second outer step are connected and fixed by bolts.

[0009] Preferably, the outer wall of the burner rear sleeve is provided with external threads along the circumferential direction, and the burner rear sleeve is connected and assembled with the gas pipeline via the external threads.

[0010] Preferably, the circular end surface of the burner body is composed of equally divided sectors.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] The burner body is divided into several identical independent modules. When the diversion hole of one independent module is blocked or one independent module is damaged, only the damaged or blocked independent module needs to be replaced, without the need to replace the entire burner, which greatly reduces the cost of use. At the same time, each independent module is easier to repair than an integrated burner. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a cross-sectional view of the utility model;

[0014] Figure 2 It is the front view of the utility model;

[0015] Figure 3 It is a rear end side view of the burner body plugged into the burner front sleeve;

[0016] Among them, 1-burner front sleeve, 101-inner step, 102-first outer step, 2-burner rear sleeve, 201-second outer step, 202-external thread, 3-burner body, 301-independent module, 4-diversion hole DETAILED DESCRIPTION

[0017] The present invention is further explained below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that these implementation methods are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0018] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixed connection" 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. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0019] In the present invention, the directions or positional relationships indicated by terms such as "upper", "lower", "bottom", "top", etc. are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention. They do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention.

[0020] like Figures 1 to 3 As shown, a burner for a combustion chamber of a suspended magnetized roasting furnace comprises a burner sleeve, the burner sleeve comprises a burner front sleeve 1 and a burner rear sleeve 2, the front end of the burner front sleeve is provided with an inner step 101, the rear end of the burner front sleeve is provided with a first outer step 102, the front end of the burner rear sleeve is provided with a second outer step 201, the inner ring diameter of the burner rear sleeve is smaller than the inner ring diameter of the burner front sleeve, the inner wall of the burner front sleeve is evenly provided with grooves along the circumferential direction, a burner body 3 is plugged into the burner front sleeve, the burner body is a cylinder with a circular end face formed by four independent modules 301 with fan-shaped end faces, the circular end face is equally divided by four sectors, and the outer wall of the burner body is arranged along the circumference. Bumps are evenly distributed in the direction, and the burner body is fixed by plugging the bumps into the slots of the burner front sleeve. Each independent module is provided with a plurality of diversion holes 4 along the length direction, the front end face of the burner body is in abutment with the rear end face of the inner step, the rear end face of the burner body is flush with the rear end face of the first outer step, the front end face of the second outer step is in abutment with the rear end face of the first outer step and the rear end face of the burner body respectively, the first outer step and the second outer step are provided with corresponding through holes, the first outer step and the second outer step are fixed by bolts, the outer wall of the burner rear sleeve is provided with external threads in the circumferential direction, and the burner rear sleeve is connected and assembled with the gas pipeline through the external threads 202.

[0021] The principle and use method of a burner for a combustion chamber of a suspended magnetized roasting furnace: first, assemble the independent modules into a completed burner body, and insert the burner body into a burner front sleeve, so that the burner body will not rotate circumferentially through the cooperation of the slot and the protrusion, and use the second outer step of the burner rear sleeve to abut the first outer step of the burner front sleeve and the rear end face of the burner body, so that the burner body will not be displaced forward and backward, and the first outer step and the second outer step are fixed by bolts. After the assembly is completed, the assembled whole is connected to the gas pipeline through the external thread of the burner rear sleeve. When one of the independent modules of the burner body is damaged or blocked, the damaged or blocked independent module is replaced separately, thereby reducing the use cost of the burner.

[0022] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A burner for a combustion chamber of a suspended magnetization roasting furnace, characterized in that: The burner sleeve comprises a burner front sleeve and a burner rear sleeve, the front end of the burner front sleeve is provided with an inner step, the rear end of the burner front sleeve is provided with a first outer step, the front end of the burner rear sleeve is provided with a second outer step, the inner ring diameter of the burner rear sleeve is smaller than the inner ring diameter of the burner front sleeve, the inner wall of the burner front sleeve is evenly provided with grooves along the circumferential direction, a burner body is inserted into the burner front sleeve, the burner body is a cylinder with a circular end face formed by a plurality of independent modules with fan-shaped end faces, the outer wall of the burner body is evenly provided with protrusions along the circumferential direction, each independent module is provided with a plurality of diversion holes along the length direction, the front end face of the burner body is in abutment with the rear end face of the inner step, the rear end face of the burner body is flush with the rear end face of the first outer step, and the front end face of the second outer step is in abutment with the rear end face of the first outer step and the rear end face of the burner body respectively.

2. A burner for a combustion chamber of a suspended magnetization roasting furnace according to claim 1, characterized in that: The first outer step and the second outer step are provided with corresponding through holes, and the first outer step and the second outer step are connected and fixed by bolts.

3. A burner for a combustion chamber of a suspended magnetization roasting furnace according to claim 1, characterized in that: The outer wall of the burner rear sleeve is provided with external threads along the circumferential direction, and the burner rear sleeve is connected and assembled with the gas pipeline through the external threads.

4. The burner for the combustion chamber of a suspended magnetization roasting furnace according to claim 1, characterized in that: The circular end surface of the burner body is composed of equally divided sectors.

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