CN212081221U - Coal injection pipe burner of rotary kiln - Google Patents

Abstract

The utility model discloses a coal injection pipe combustor of rotary kiln, including combustor body, guide duct, baffle, fixed block, slide bar, first spring, fixture block and kelly. The utility model discloses in through the setting of guide duct, can strengthen the combustion-supporting ability that volatilizees, weaken to volatilize the consumption to the air, guarantee the suitable environment of follow-up burning.

Description

Coal injection pipe burner of rotary kiln

Technical Field

The utility model relates to a technical field of rotary kiln especially relates to a coal injection pipe combustor of rotary kiln.

Background

In recent years, rotary-flow four-duct coal powder burners are used for rotary kilns at home and abroad. A great deal of research is carried out, and different types of cyclone type four-air-channel pulverized coal burners are developed and developed successively in Germany, France, Denmark, Austria and other countries from 85 years to 87 years, and the structure of the burner consists of a head pipe, a middle pipe and a coal feeding pipe.

However, the existing four-air-duct coal injection pipe burner has insufficient utilization and combustion of bituminous coal, high coal consumption and is not beneficial to burning high-quality clinker.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems of utilization and insufficient combustion of bituminous coal by a four-air-channel coal injection pipe burner in the prior art, and providing the coal injection pipe burner of the rotary kiln.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a coal injection pipe burner of a rotary kiln comprises a burner body, an air guide pipe, a baffle, a fixed block, a slide rod, a first spring, a clamping block and a clamping rod;

the combustor body comprises a shell, an axial flow air channel, a pulverized coal air channel, a rotational flow air channel, a central air channel and a fuel oil pipe, wherein the axial flow air channel, the pulverized coal air channel, the rotational flow air channel, the central air channel and the fuel oil pipe are all arranged in the shell, the pulverized coal air channel is positioned below the axial flow air channel, the rotational flow air channel is positioned below the pulverized coal air channel, the fuel oil pipe is positioned below the rotational flow air channel, and the central air channel is arranged between the rotational flow air channel and the fuel oil pipe;

the two air guide pipes are symmetrically arranged outside the burner body; the baffle is slidably inserted into one end of the air guide pipe, extends outwards to protrude out of the air guide pipe and is provided with a plurality of clamping grooves arranged at equal intervals; the fixed block is connected to one end of the baffle plate, which extends out of the air guide pipe;

the sliding rod is slidably inserted into one end of the fixed block, and one end of the sliding rod is fixedly connected with the outer wall of the air guide pipe; the first spring is sleeved on the sliding rod, and two ends of the first spring are respectively connected to the fixed block and the air guide pipe;

the clamping block is arranged on one end of the air guide pipe and is close to the baffle; the clamping rod slides through the clamping block and can be selectively inserted into one of the clamping grooves.

Preferably, the air guide pipe is fixedly connected with the outer wall of the burner body through a plurality of supporting blocks.

Preferably, a connecting flange is fixedly sleeved at one end of the air guide pipe, which is far away from the baffle plate.

Preferably, one end of the air guide pipe, which is far away from the baffle plate, is in threaded connection with a check valve.

Preferably, a clamping sleeve is fixedly sleeved at one end of the clamping rod close to the baffle, and a pull rod is fixedly connected at one end of the clamping rod far away from the clamping sleeve.

Preferably, the clamping rod is sleeved with a second spring, and two ends of the second spring are fixedly connected with the clamping sleeve and the clamping block respectively.

Has the advantages that:

1. through the arrangement of the air guide pipe, external axial air can be properly adjusted, the rotary diffusion strength and the axial furling effect are enhanced, meanwhile, the arrangement of the baffle plate can control the air flow in the air channel, meanwhile, the arrangement of the check valve can effectively prevent the air from flowing backwards, and meanwhile, the clamping rod can effectively fix the baffle plate;

2. simultaneously, the slide bar can effectively prevent rocking of baffle, and first spring can play certain elastic support to the baffle, and the second spring can play certain elastic support to the kelly, and the cutting ferrule can effectively prevent that the kelly from droing from the fixture block.

Drawings

Fig. 1 is a schematic structural view of a coal injection burner of a rotary kiln according to the present invention;

fig. 2 is a schematic structural view of a portion a of fig. 1.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to be referred must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Also, when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "fixedly attached" to another element, it can be fixedly attached by welding, bolting, gluing, or the like. In conclusion, the specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 2, a preferred embodiment of the present invention relates to a coal injection burner of a rotary kiln, which includes a burner body 1, an air duct 2, a baffle 3, a fixing block 4, a sliding rod 5, a first spring 6, a fixture block 7 and a fixture rod 8, and the following further describes each part of the coal injection burner of the rotary kiln:

the burner body 1 comprises a shell, an axial flow air flue 102, a pulverized coal air flue 103, a rotational flow air flue 104, a central air flue 105 and a fuel oil pipe 106, wherein the axial flow air flue 102, the pulverized coal air flue 103, the rotational flow air flue 104, the central air flue 105 and the fuel oil pipe 106 are all arranged in the shell, the pulverized coal air flue 103 is positioned below the axial flow air flue 102, the rotational flow air flue 104 is positioned below the pulverized coal air flue 103, the fuel oil pipe 106 is positioned below the rotational flow air flue 104, and the central air flue 105 is arranged between the rotational flow air flue 104 and the fuel oil pipe;

the two air guide pipes 2 are symmetrically arranged outside the burner body 1 and used for properly adjusting the external axial air flow; the baffle 3 can be slidably inserted into one end of the air guide pipe 2 and extends outwards to protrude out of the air guide pipe 2, the baffle 3 is provided with a plurality of clamping grooves which are arranged at equal intervals, and the baffle 3 is used for controlling the air flow in the air duct; the fixed block 4 is connected to one end of the baffle 3, which extends out of the air guide pipe 2 and is used for supporting the baffle 3;

the sliding rod 5 can be slidably inserted into one end of the fixed block 4, one end of the sliding rod 5 is fixedly connected with the outer wall of the air guide pipe 2, and the sliding rod 5 is arranged to support the fixed block 4; the first spring 6 is sleeved on the sliding rod 5, and two ends of the first spring 6 are respectively connected to the fixed block 4 and the air guide pipe 2 so as to elastically support the baffle 3 to a certain extent;

the clamping block 7 is arranged at one end of the air guide pipe 2 and is close to the baffle 3; the clamping rod 8 slides through the clamping block 7 and can be selectively inserted into one of the clamping grooves so as to be used for fixing the baffle 3.

Therefore, the air guide pipe 2 can properly adjust the external axial air flow, enhance the rotary diffusion strength and the axial furling effect, and meanwhile, the baffle 3 can control the air flow in the air channel. The utility model discloses in through the setting of guide duct 2, can strengthen the combustion-supporting ability that volatilizees, weaken to volatilize the consumption to the air, guarantee the suitable environment of follow-up burning.

Please continue to refer to fig. 1 to 2, specifically, the air duct 2 is fixedly connected to the outer wall of the burner body 1 through a plurality of supporting blocks 9, so as to prevent the air duct 2 from shaking, a connecting flange 10 is fixedly connected to one end of the air duct 2 away from the baffle 3, so as to facilitate connection of the air duct 2, a check valve 11 is screwed to one end of the air duct 2 away from the baffle 3, so as to prevent wind from flowing backwards, a clamping sleeve 12 is fixedly connected to one end of the clamping rod 8 close to the baffle 3, a pull rod 13 is fixedly connected to one end of the clamping rod 8 away from the clamping sleeve 12, so as to facilitate pulling of the clamping rod 8, a second spring 14 is sleeved on the clamping rod 8, two ends of the second spring 14 are respectively fixedly connected to the clamping sleeve 12 and the.

In this embodiment, through the setting of guide duct 2, can suitably adjust outer axial flow wind, strengthen rotatory diffusion intensity and the axial and draw in the effect in, the setting of baffle 3 simultaneously, can control the wind flow in the wind channel, check valve 11's setting simultaneously, can effectively prevent wind and flow backward, kelly 8 can be effectual fixes baffle 3 simultaneously, slide bar 5 can effectively prevent rocking of baffle 3 simultaneously, first spring 6 can play certain elastic support to baffle 3, second spring 14 can play certain elastic support to kelly 8, cutting ferrule 12 can effectively prevent kelly 8 from droing from fixture block 7.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. A coal injection pipe burner of a rotary kiln is characterized in that: the burner comprises a burner body (1), an air guide pipe (2), a baffle (3), a fixed block (4), a slide rod (5), a first spring (6), a clamping block (7) and a clamping rod (8);

the combustor body (1) comprises a shell, an axial flow air channel (102), a pulverized coal air channel (103), a rotational flow air channel (104), a central air channel (105) and a fuel pipe (106), wherein the axial flow air channel (102), the pulverized coal air channel (103), the rotational flow air channel (104), the central air channel (105) and the fuel pipe (106) are all arranged in the shell, the pulverized coal air channel (103) is positioned below the axial flow air channel (102), the rotational flow air channel (104) is positioned below the pulverized coal air channel (103), the fuel pipe (106) is positioned below the rotational flow air channel (104), and the central air channel (105) is arranged between the rotational flow air channel (104) and the fuel pipe (106);

the two air guide pipes (2) are symmetrically arranged outside the burner body (1); the baffle (3) is slidably inserted into one end of the air guide pipe (2), extends outwards to protrude out of the air guide pipe (2), and is provided with a plurality of clamping grooves arranged at equal intervals; the fixed block (4) is connected to one end, extending out of the air guide pipe (2), of the baffle (3);

the sliding rod (5) is slidably inserted into one end of the fixed block (4), and one end of the sliding rod (5) is fixedly connected with the outer wall of the air guide pipe (2); the first spring (6) is sleeved on the sliding rod (5), and two ends of the first spring (6) are respectively connected to the fixed block (4) and the air guide pipe (2);

the clamping block (7) is arranged at one end of the air guide pipe (2) and is close to the baffle (3); the clamping rod (8) slides through the clamping block (7) and can be selectively inserted into one of the clamping grooves.

2. The coal injection tube burner of a rotary kiln as recited in claim 1, wherein: the air guide pipe (2) is fixedly connected with the outer wall of the combustor body (1) through a plurality of supporting blocks (9).

3. The coal injection tube burner of a rotary kiln as recited in claim 1, wherein: and a connecting flange (10) is fixedly sleeved at one end of the air guide pipe (2) far away from the baffle (3).

4. The coal injection tube burner of a rotary kiln as recited in claim 1, wherein: one end of the air guide pipe (2) far away from the baffle (3) is in threaded connection with a check valve (11).

5. The coal injection tube burner of a rotary kiln as recited in claim 1, wherein: the clamping sleeve (12) is fixedly sleeved at one end, close to the baffle (3), of the clamping rod (8), and the pull rod (13) is fixedly connected at one end, far away from the clamping sleeve (12), of the clamping rod (8).

6. The coal injection tube burner of a rotary kiln as recited in claim 5, wherein: the clamping rod (8) is sleeved with a second spring (14), and two ends of the second spring (14) are fixedly connected with the clamping sleeve (12) and the clamping block (7) respectively.

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