Multi-fuel built-in ultra-long body combustor

Abstract

The utility model relates to the technical field of ultra-long body kiln combustors, in particular to a multi-fuel built-in ultra-long body combustor. Comprising a burner shell, a cooling air inlet pipe, a temperature measuring sensor, a first-section burner pipe, a second-section burner pipe, a third-section burner pipe, a short-pipe burner, a first-section ignition needle, a middle-pipe burner, a second-section ignition needle, a long-pipe burner, a third-section ignition needle, a furnace chamber, a combustion flame monitoring camera, an atomized gas pipeline, a fuel pipeline, an air outlet pipe and an outlet temperature measuring device. According to the multi-fuel built-in ultra-long body burner, multi-group control is adopted for fuel in the multi-fuel built-in ultra-long body burner, combustion of each group is automatically controlled according to the set temperature of the kiln, multi-group operation or single-group operation can be achieved, uniform heating in the whole kiln is guaranteed, the temperature from the tail of the kiln to the head of the kiln is within the preset temperature range, the ultra-long body kiln is heated in a balanced mode, and the service life of the ultra-long body kiln is prolonged. And it is guaranteed that the overall temperature of the super-long kiln is within the set range

Description

Technical Field

[0001] The utility model relates to the technical field of super-long kiln burners, in particular to a multi-fuel built-in super-long burner. Background Art

[0002] The internal temperature of the existing kiln (converter) changes with the length from the kiln tail to the kiln head, and the temperature inside the furnace shows a gradual downward trend. For kilns (converters) with higher temperature accuracy requirements, a longer burner structure is required. Existing burners are difficult to meet the temperature accuracy requirements.

[0003] A multi-fuel built-in extra-long body burner is provided, which adopts built-in multi-component atomizing gas pipeline and fuel pipeline to arrange multiple combustion points in a balanced manner in the kiln (converter) to ensure uniform heating in the entire kiln (converter), so that the temperature from the kiln tail to the kiln head is within a preset temperature range. Therefore, a multi-fuel built-in extra-long body burner is proposed to address the above problems. Summary of the invention

[0004] The purpose of the utility model is to provide a multi-fuel built-in super-long body burner, which adopts a built-in multi-component atomizing gas pipeline and a fuel pipeline to arrange multiple combustion points in a balanced manner in the kiln (converter), so as to ensure uniform heating in the entire kiln (converter) so that the temperature from the kiln tail to the kiln head is within a preset temperature range.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A multi-fuel built-in super-long body burner, comprising a burner shell, an inner wall at one end of the burner shell is fixedly connected with a cooling air inlet pipe, the inner wall of the burner shell is distributed with temperature sensors, the inner wall of the burner shell is fixedly provided with a first-stage burner tube, a second-stage burner tube and a third-stage burner tube, a short tube burner is arranged inside the first-stage burner tube, a first-stage ignition needle is fixedly arranged inside the burner shell at the interval position of the short tube burner, a middle tube burner is arranged inside the second-stage burner tube, a second-stage ignition needle is fixedly arranged inside the burner shell at the interval position of the middle tube burner, a long tube burner is arranged inside the three-stage burner tube, and a three-stage ignition needle is fixedly arranged inside the burner shell at the interval position of the long tube burner, the burner shell is located inside a furnace cavity, a combustion flame monitoring camera is fixedly arranged on the inner wall of the furnace cavity, and the short tube burner, the middle tube burner and the long tube burner are all fixedly connected with an atomizing gas pipeline and a fuel pipeline.

[0007] Preferably, an air outlet pipe is fixedly provided at one end of the burner housing, and an outlet temperature measuring device is fixedly embedded and fixedly provided on the outer side of the air outlet pipe.

[0008] Preferably, there are nine groups of the atomizing gas pipelines and the fuel pipelines, and the fuel pipelines are embedded and fixedly arranged inside the atomizing gas pipelines.

[0009] Preferably, the sleeve composed of the atomizing gas pipeline and the fuel pipeline arranged at the bottom is the longest, the sleeve composed of the atomizing gas pipeline and the fuel pipeline arranged in the middle is the second longest, and the sleeve composed of the atomizing gas pipeline and the fuel pipeline arranged at the top is the shortest.

[0010] Preferably, the burner shell is a built-in burner to prevent high-temperature burning, the burner shell adopts internal air-type physical cooling, and the outside of the burner shell body is coated with polymer insulation material.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] In the utility model, by arranging a burner shell, a cooling air inlet pipe, a temperature sensor, a first-stage burner pipe, a second-stage burner pipe, a third-stage burner pipe, a short-tube burner, a first-stage ignition needle, a middle-tube burner, a second-stage ignition needle, a long-tube burner, a third-stage ignition needle, a furnace cavity, a combustion flame monitoring camera, an atomizing gas pipeline, a fuel pipeline, an air outlet pipe and an outlet temperature measuring device, the burner is a multi-fuel built-in super-long body burner, the fuel adopts multiple groups of control, and each group of combustion is automatically controlled according to the set temperature of the kiln (converter). It can be operated in multiple groups or in a single group to ensure uniform heating in the entire kiln (converter), so that the temperature from the kiln tail to the kiln head is within the preset temperature range, and the super-long body kiln (converter) is evenly heated to ensure that the overall temperature of the super-long body kiln (converter) is within the set range. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the two-stage burner tube of the utility model;

[0015] Figure 3 This is a schematic diagram of the three-stage burner tube structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the furnace chamber structure of the utility model;

[0017] Figure 5 For this utility model Figure 4 A schematic diagram of the structure at A;

[0018] Figure 6 For this utility model Figure 4 Schematic diagram of the structure at point B.

[0019] In the figure: 1. burner shell; 2. cooling air inlet pipe; 3. temperature sensor; 4. one-stage burner tube; 5. two-stage burner tube; 6. three-stage burner tube; 7. short-tube burner; 8. one-stage ignition needle; 9. medium-tube burner; 10. two-stage ignition needle; 11. long-tube burner; 12. three-stage ignition needle; 13. furnace cavity; 14. combustion flame monitoring camera; 15. atomizing gas pipeline; 16. fuel pipeline; 17. air outlet pipe; 18. outlet temperature measuring device. Implementation

[0020] 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.

[0021] See also Figure 1-6 , the utility model provides a technical solution:

[0022] A multi-fuel built-in super-long burner comprises a burner shell 1, an inner wall at one end of the burner shell 1 is fixedly connected with a cooling air inlet pipe 2, a temperature sensor 3 is distributed on the inner wall of the burner shell 1, a first-stage burner tube 4, a second-stage burner tube 5 and a third-stage burner tube 6 are fixedly arranged on the inner wall of the burner shell 1, a short-tube burner 7 is arranged inside the first-stage burner tube 4, an ignition needle 8 is fixedly arranged inside the burner shell 1 at a position spaced apart from the short-tube burner 7, and a middle-tube burner 9 is arranged inside the second-stage burner tube 5 A two-stage ignition needle 10 is fixedly arranged inside the burner shell 1 located at the interval between the middle tube burner 9, a long tube burner 11 is arranged inside the three-stage burner tube 6, and a three-stage ignition needle 12 is fixedly arranged inside the burner shell 1 located at the interval between the long tube burner 11. The burner shell 1 is located inside the furnace cavity 13, and a combustion flame monitoring camera 14 is fixedly arranged on the inner wall of the furnace cavity 13. The short tube burner 7, the middle tube burner 9 and the long tube burner 11 are all fixedly connected to the atomizing gas pipeline 15 and the fuel pipeline 16.

[0023] By setting a burner shell 1, a cooling air inlet pipe 2, a temperature sensor 3, a first-stage burner tube 4, a second-stage burner tube 5, a third-stage burner tube 6, a short-tube burner 7, a first-stage ignition needle 8, a middle-tube burner 9, a second-stage ignition needle 10, a long-tube burner 11, a third-stage ignition needle 12, a furnace cavity 13, a combustion flame monitoring camera 14, an atomizing gas pipeline 15, a fuel pipeline 16, an air outlet pipe 17 and an outlet temperature measuring device 18, wherein an air outlet pipe 17 is fixedly provided at one end of the burner shell 1, and an outlet temperature measuring device 18 is fixedly provided on the outer side of the air outlet pipe 17. 18; there are nine groups of atomizing gas pipelines 15 and fuel pipelines 16, and the fuel pipelines 16 are fixedly arranged inside the atomizing gas pipelines 15; the sleeve composed of the atomizing gas pipelines 15 and the fuel pipelines 16 arranged at the bottom is the longest, the sleeve composed of the atomizing gas pipelines 15 and the fuel pipelines 16 arranged in the middle is the second longest, and the sleeve composed of the atomizing gas pipelines 15 and the fuel pipelines 16 arranged at the top is the shortest; the burner shell 1 is a built-in burner to prevent high-temperature burning, the burner shell 1 adopts internal air physical cooling, and the outside of the burner shell 1 body is coated with polymer insulation material.

[0024] Workflow: This burner is a multi-fuel built-in extra-long burner. The fuel is controlled by multiple groups. Each group of combustion is automatically controlled according to the set temperature of the kiln (converter). It can be operated in multiple groups or in a single group. The temperature sensing components such as the temperature sensor 3, the combustion flame monitoring camera 14 and the outlet temperature measuring device 18 monitor the temperature of the burner and the furnace chamber 13 in real time. The atomizing gas pipeline 15 and the fuel pipeline 16 are controlled by PLC through the external feeding solenoid valve. Each group has an adjustment function to always keep the kiln (converter) temperature within the set range. The burner shell The body 1 adopts internal air physical cooling, the outside of the burner shell 1 is coated with polymer insulation material to ensure that the burner is not burned, the burner power supply adopts dual power supply, and the control monitoring circuit adopts redundant setting to ensure that the burner is in a controllable range in any form. The built-in multi-component and multi-ignition point are evenly arranged in the kiln (converter) to ensure uniform heating in the entire kiln (converter), so that the temperature from the kiln tail to the kiln head is within the preset temperature range, and the super-long kiln (converter) is evenly heated to ensure that the overall temperature of the super-long kiln (converter) is within the set range.

[0025] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-fuel built-in super-long burner, comprising a burner housing (1), characterized in that: The inner wall of one end of the burner shell (1) is fixedly connected to a cooling air inlet pipe (2); the inner wall of the burner shell (1) is provided with temperature measuring sensors (3); the inner wall of the burner shell (1) is fixedly provided with a first-stage burner tube (4), a second-stage burner tube (5) and a third-stage burner tube (6); the first-stage burner tube (4) is provided with a short tube burner (7); the burner shell (1) is located at a position spaced apart from the short tube burner (7) and a first-stage ignition needle (8) is fixedly provided inside the burner shell (1); the second-stage burner tube (5) is provided with a middle-stage burner (9); the middle-stage burner (9) is provided with a second-stage burner tube (5). A two-stage ignition needle (10) is fixedly arranged inside the burner shell (1) at the interval position, a long tube burner (11) is arranged inside the three-stage burner tube (6), and a three-stage ignition needle (12) is fixedly arranged inside the burner shell (1) at the interval position of the long tube burner (11). The burner shell (1) is located inside a furnace cavity (13), and a combustion flame monitoring camera (14) is fixedly arranged on the inner wall of the furnace cavity (13). The short tube burner (7), the middle tube burner (9) and the long tube burner (11) are all fixedly connected to the atomizing gas pipeline (15) and the fuel pipeline (16).

2. The multi-fuel built-in super-long burner according to claim 1, characterized in that: An air outlet pipe (17) is fixedly provided at one end of the burner housing (1), and an outlet temperature measuring device (18) is fixedly engaged and fixedly provided on the outside of the air outlet pipe (17).

3. The multi-fuel built-in super-long burner according to claim 1, characterized in that: There are nine groups of the atomizing gas pipeline (15) and the fuel pipeline (16), and the fuel pipeline (16) is embedded and fixedly arranged inside the atomizing gas pipeline (15).

4. The multi-fuel built-in super-long burner according to claim 3, characterized in that: The sleeve composed of the atomizing gas pipeline (15) and the fuel pipeline (16) arranged at the bottom is the longest, the sleeve composed of the atomizing gas pipeline (15) and the fuel pipeline (16) arranged in the middle is the second longest, and the sleeve composed of the atomizing gas pipeline (15) and the fuel pipeline (16) arranged at the top is the shortest.

5. The multi-fuel built-in super-long burner according to claim 1, characterized in that: The burner shell (1) is a built-in burner that can prevent high-temperature burning. The burner shell (1) adopts internal air-type physical cooling. The outside of the burner shell (1) is coated with a polymer heat-insulating material.

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