Side-mounted tangential-wind-resistant burner of vertical incineration hearth

Abstract

The utility model discloses a vertical incineration hearth side-mounted tangential-wind-resistant burner which comprises a vertical hearth and a burner body, and the burner body is mounted on the side face of the vertical hearth. The combustor comprises an equipartition device, a brazier cover and a main fuel gas spray gun, the brazier cover is mounted on the outer side of the equipartition device, the main fuel gas spray gun is mounted in the equipartition device, a combustion brazier is arranged at the front end of the brazier cover, nine groups of main combustion air branch pipes which are annularly distributed at equal intervals are arranged at the front end of the combustion brazier, and each main combustion air branch pipe is of a hollow cylindrical structure. The main combustion air branch pipes are installed in an outward inclined mode, eighteen groups of gas nozzles distributed in an annular and equidistant mode are arranged on the inner side of the combustion fire pan, and a diffusion opening is formed in the middle of the combustion fire pan and is of a funnel-shaped structure. The device can weaken the tangential airflow velocity in advance around the main brazier, reduce the'shearing 'capability of the smoke, and prevent the occurrence of deflagration.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of combustor, concretely to a vertical incinerator hearth side installation tangential wind resistant combustor. BACKGROUND

[0002] In recent years, the petroleum chemical industry in China develops rapidly, and a large number of combustion furnaces (heating furnaces, boilers, heat conducting oil furnaces, conversion furnaces, incinerators) and combustors are needed in processes from raw material primary processing to later product delivery and byproduct waste treatment. With the continuous progress of technology, the whole plant requires that the device not only meets the long-period stable operation requirement, but also achieves the environmental protection target of "carbon peak and carbon neutralization". Therefore, as a key component of the combustion furnace, the performance of the combustor plays a crucial role in the device.

[0003] The existing combustor has the following defects:

[0004] 1. The side-mounted combustor of many existing vertical incinerators has problems such as "extinguishing / extinguishing", tail fire (furnace secondary combustion), deflagration, etc., which causes safety hazards and problems of flue gas composition emission exceeding the standard for the device.

[0005] 2. The side-mounted combustor of the existing vertical incinerator is prone to partial burning, which causes uneven combustion.

[0006] Therefore, a solution is needed. UTILITY MODEL CONTENT

[0007] (I) Technical problem solved

[0008] In view of the deficiencies of the prior art, the utility model provides a vertical incinerator hearth side installation tangential wind resistant combustor to solve the problems raised in the above background technology.

[0009] (II) Technical scheme

[0010] To achieve the above purpose, the utility model is implemented by the following technical scheme: a vertical incinerator hearth side installation tangential wind resistant combustor, comprising a vertical furnace hearth and a combustor, the combustor is installed on the side of the vertical furnace hearth; the combustor comprises a uniform distribution device, a fire pan cover and a main fuel gas lance, the fire pan cover is installed outside the uniform distribution device, the main fuel gas lance is installed inside the uniform distribution device, the front end of the fire pan cover is provided with a combustion fire pan, the front end of the combustion fire pan is provided with nine groups of main combustion air branch pipes distributed in a ring-like equidistant manner, the main combustion air branch pipes are in a hollow cylindrical structure, the main combustion air branch pipes are installed in an outwardly inclined manner, the inner side of the combustion fire pan is provided with eighteen groups of fuel gas nozzles distributed in a ring-like equidistant manner, a diffusion port is formed in the middle of the combustion fire pan, and the diffusion port is in a funnel structure.

[0011] Preferably, the main fuel gas lance rear end is provided with a connecting pipe, and the main fuel gas lance front end is provided with a flame stabilizing disc.

[0012] Preferably, the equal distribution device bottom is provided with a main fuel air passage, the main fuel air passage is in a hollow circular cylinder structure, and the main fuel air passage bottom is provided with a main fuel air outlet.

[0013] Preferably, the equal distribution device comprises a first equal distribution cylinder and a second equal distribution cylinder, the second equal distribution cylinder is arranged at the first equal distribution cylinder front end, and the first equal distribution cylinder and the second equal distribution cylinder are in a through type structure.

[0014] Preferably, the vertical furnace is internally provided with a combustion cavity, and the vertical furnace is composed of a plurality of groups of refractory bricks.

[0015] (Three) beneficial effects

[0016] The vertical incineration furnace lateral anti-tangential wind burner has the following beneficial effects:

[0017] In the scheme, the vertical incineration furnace lateral anti-tangential wind burner is internally provided with a plurality of groups of main fuel air branch pipes, the branch pipes are arranged in a ring shape, a wind curtain is formed, then meets the tangential air flow, the two meet to form a new flow direction, and the tangential velocity of the tangential air flow at this place is weakened. Especially the ring-shaped wind curtain at the bottom, which has the greatest interference to the tangential air flow, can adjust the layout of the wind curtain according to different design parameters to reduce the tangential interference. The ventilation pipeline of the burner is homogenized, the air equalization cylinder is arranged, the main flame of the burner throat is ensured to be "straight", the burner is not biased to burn, the position and angle of the nozzle of the burner are further moved inward, that is, the distance between the nozzle and the edge of the combustion fire basin is not less than 50 mm, the gas is ensured to have been burned before leaving the edge of the fire basin, and meanwhile, the interference of the tangential air flow to the flame at the root of the burner is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a whole structure schematic view of the utility model;

[0019] Fig. 2 It is a structure schematic view of the combustion fire basin of the utility model.

[0020] In the drawing, 2 is a vertical furnace, 3 is a burner, 4 is an equal distribution device, 5 is a fire basin cover, 6 is a main fuel gas lance, 7 is a combustion fire basin, 8 is a main fuel air branch pipe, 9 is a gas nozzle, 10 is a diffusion port, 11 is a connecting pipe, 12 is a flame stabilizing disc, 13 is a main fuel air passage, 14 is a main fuel air outlet, 15 is a first equal distribution cylinder, 16 is a second equal distribution cylinder, 17 is a combustion cavity, and 18 is a refractory brick. PREFERRED EMBODIMENT

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0022] Please refer to Figs. 1-2 The embodiments of the present application provide a technical solution:

[0023] Embodiment 1

[0024] For the above-mentioned problem 1: many existing vertical incinerators have the problems of "extinguishing / extinguishing", tail fire (furnace secondary combustion), deflagration, etc., which cause safety hazards to the device and exceed the emission standard of flue gas components.

[0025] The solution is as follows: a vertical incinerator hearth side-mounted anti-tangential wind burner, comprising a vertical hearth 2 and a burner 3, the burner 3 is installed on the side of the vertical hearth 2; the burner 3 comprises a uniform distribution device 4, a fire pan cover 5 and a main fuel gas lance 6, the fire pan cover 5 is installed outside the uniform distribution device 4, the main fuel gas lance 6 is installed inside the uniform distribution device 4, the front end of the fire pan cover 5 is provided with a combustion fire pan 7, the front end of the combustion fire pan 7 is provided with nine groups of main combustion air branch pipes 8 distributed in a ring-shaped equidistant manner, the main combustion air branch pipes 8 are in a hollow cylindrical structure, the main combustion air branch pipes 8 are installed in an outwardly inclined manner, the inside of the combustion fire pan 7 is provided with eighteen groups of fuel gas nozzles 9 distributed in a ring-shaped equidistant manner, a diffusion port 10 is formed in the middle of the combustion fire pan 7, the diffusion port 10 is in a funnel structure, after the wind force passes through the uniform distribution device 4, it enters the main combustion air branch pipe 8, which is arranged in a ring shape, forming a wind curtain, and then meets the tangential airflow, the two meet to form a new flow direction, weakening the tangential velocity of the tangential airflow. Especially the bottom ring-shaped wind curtain, which has the greatest interference with the tangential airflow, can adjust the layout of the wind curtain according to different design parameters to reduce the tangential interference.

[0026] The rear end of the main fuel gas lance 6 is provided with a connecting pipe 11, and the front end of the main fuel gas lance 6 is provided with a flame stabilizing disc 12, the connecting pipe 11 is used for connecting the fuel pipe, and the flame stabilizing disc 12 is used for improving the stability of the flame, and the position and angle of the combustion end of the main fuel gas lance 6 are further moved inward, that is, the distance between the nozzle and the edge of the combustion fire pan 7 is not less than 50 mm, so as to ensure that the fuel gas has been burned before leaving the edge of the fire pan, and the interference of the tangential airflow on the flame at the root of the burner is also reduced.

[0027] The equalizing device 4 is provided with a main combustion air passage 13 at the bottom, which is in a hollow cylindrical structure, and is provided with a main combustion air inlet 14 at the bottom, through which the air enters the first equalizing cylinder 15 and the second equalizing cylinder 16 of the equalizing device 4, and the air speed is equalized, and then the air directly passes through the flame stabilizing disc 12 and is mixed with fuel gas for combustion.

[0028] The vertical furnace chamber 2 is internally provided with a combustion chamber 17, which is composed of a plurality of groups of refractory bricks 18, and the combustion chamber 17 is used for facilitating combustion, and the vertical furnace chamber 2 is composed of a plurality of groups of refractory bricks 18, which can effectively improve the stability of the vertical furnace chamber 2 and also improve the service life of the vertical furnace chamber 2.

[0029] Example 2

[0030] For the above-mentioned problem 2 to be solved: the side-mounted burner of the existing vertical incinerator is prone to partial burning, which leads to uneven combustion.

[0031] The solution is as follows: the equalizing device 4 includes a first equalizing cylinder 15 and a second equalizing cylinder 16, the second equalizing cylinder 16 is installed at the front end of the first equalizing cylinder 15, the first equalizing cylinder 15 and the second equalizing cylinder 16 are in a through structure, a plurality of φ16mm holes are formed on the first equalizing cylinder 15 and the second equalizing cylinder 16, which can facilitate the entry of wind, thereby ensuring that the main flame of the burner throat is "straight" and not partial burning.

[0032] Working principle: during operation, the air enters the first equalizing cylinder 15 and the second equalizing cylinder 16 of the equalizing device 4 through the main combustion air inlet 14, the air speed is equalized, then the air is divided into two paths, the first path air directly passes through the flame stabilizing disc 12 and is mixed with fuel gas for combustion, the second path, the air passes through the equalizing device 4 and enters the main combustion air branch pipe 8, which is arranged in a ring shape, forming an air curtain, then meets the tangential gas flow, and the two meet to form a new flow direction, which weakens the tangential velocity of the tangential gas flow. Especially the ring-shaped air curtain at the bottom, which has the greatest interference with the tangential gas flow, can adjust the layout of the air curtain according to different design parameters to reduce the tangential interference.

[0033] The utility model discloses 2, vertical hearth, 3, combustor, 4, equal division device, 5, fire pan cover, 6, main fuel gas lance, 7, combustion fire pan, 8, main combustion air branch pipe, 9, gas nozzle, 10, diffusion port, 11, connecting pipe, 12, stable flame disc, 13, main combustion air passage, 14, main combustion air port, 15, first equal division cylinder, 16, second equal division cylinder, 17, combustion chamber, 18, firebrick, the component is all general standard parts or the component that the person skilled in the art knows, and its structure and principle are all that the person skilled in the art can know through technical manual or know through conventional experimental method, the problem that the utility model solves is that the side-mounted combustor of many vertical incinerator of prior art exists " extinguishing / extinguishing fire", tail fire ( hearth secondary combustion ), deflagration and other problems, cause the safety hazard and flue gas composition discharge overproof problem of device, the utility model can weaken the tangential airflow velocity around the main fire pan in advance through the mutual combination of above -mentioned components, reduce its flue gas " shearing " ability.

[0034] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, for those skilled in the art, obviously, the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0035] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A side-mounted tangential wind resistant burner for a vertical incinerator hearth, characterized by: It includes vertical furnace (2) and burner (3), burner (3) is installed in vertical furnace (2) side; The burner (3) includes equal distribution device (4), fire pan cover (5) and main fuel gas lance (6), the fire pan cover (5) is installed outside the equal distribution device (4), the main fuel gas lance (6) is installed inside the equal distribution device (4), the fire pan cover (5) front end is equipped with combustion fire pan (7), the combustion fire pan (7) front end is equipped with nine groups of main combustion air branch pipe (8) in the form of ring equidistant distribution, the main combustion air branch pipe (8) is in the form of hollow cylindrical structure, the main combustion air branch pipe (8) is installed in the form of outward inclination, the combustion fire pan (7) inside is equipped with eighteen groups of gas nozzle (9) in the form of ring equidistant distribution, the combustion fire pan (7) middle part is equipped with diffusion port (10), the diffusion port (10) is in the form of funnel structure.

2. A side-mounted tangential wind resistant burner for a vertical incinerator hearth according to claim 1, characterized in that: The main fuel gas lance (6) rear end is equipped with connecting pipe (11), the main fuel gas lance (6) front end is equipped with flame stabilizing disc (12).

3. A side-mounted tangential wind resistant burner for a vertical incinerator hearth according to claim 1, characterized in that: The equal distribution device (4) bottom is equipped with main combustion air channel (13), the main combustion air channel (13) is in the form of circular hollow cylindrical structure, the main combustion air channel (13) bottom is equipped with main combustion air port (14).

4. A side-mounted tangential wind resistant burner for a vertical incinerator hearth according to claim 1, characterized in that: The equal distribution device (4) includes first equal distribution cylinder (15) and second equal distribution cylinder (16), the second equal distribution cylinder (16) is installed in the first equal distribution cylinder (15) front end, the first equal distribution cylinder (15) and the second equal distribution cylinder (16) are through type structure.

5. A side-mounted tangential wind resistant burner for a vertical incinerator hearth according to claim 1, characterized in that: The vertical furnace (2) inside is equipped with combustion cavity (17), the vertical furnace (2) is composed of several groups of refractory bricks (18).

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