CN210915937U

CN210915937U - Nitre device is controlled to coke oven production source

Info

Publication number: CN210915937U
Application number: CN201921257552.5U
Authority: CN
Inventors: 郑仁勇; 李伟; 陈干; 刘建军; 孟影子
Original assignee: Linhuan Coking and Chemical Co Ltd
Current assignee: Linhuan Coking and Chemical Co Ltd
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-07-03
Anticipated expiration: 2029-08-06

Abstract

The utility model belongs to the technical field of the coke oven production, especially, coke oven production source accuse nitre device, the following scheme is proposed at present, including the coke oven body, the inside of coke oven body is provided with the regenerator that sets up along its length direction equidistance, the top of regenerator is provided with the combustion chamber that sets up along coke oven body length direction equidistance, be provided with the carbonization room between the adjacent combustion chamber, transfer passage has been seted up to the bottom of combustion chamber, transfer passage installs adjustment mechanism, adjustment mechanism includes the fixed cylindrical hollow structure's that cup joints storage casing bottom with transfer passage, storage casing's top inside wall sets up the spout of the convex structure that sets up along its length direction. The utility model discloses the temperature of effectual detection combustion chamber and carbonization, the gas supply volume of in time controlling avoids combustion chamber and carbonization room high temperature, prevents that temperature heating power type NOx from producing, makes carbonization room carbonization balanced simultaneously, improves the coke quality, effectual from source accuse nitre.

Description

Nitre device is controlled to coke oven production source

Technical Field

The utility model relates to a coke oven production technical field especially relates to a coke oven production source accuse nitre device.

Background

The generation mechanism of NO x in the combustion process of coke oven gas is much more complicated than that of SO 2, the concentration of NO x in flue gas cannot be calculated from the sulfur content of fuel like SO 2, the generation amount of NO x is related to the combustion mode, more than 90% of NO x generated in the combustion process is NO, and NO 2 and others only account for 5% -10%. Depending on the combustion conditions and the production route, the produced NOx can be classified into the following three types: fuel type NO x, which is a nitrogen oxide generated by oxidation of an organic nitrogen compound in a fuel after thermal decomposition in a combustion process.

The temperature thermal type NO x is the result of the action of N2 in the air and O2 under the high temperature condition, the generation mechanism and control of NO x are discussed in the air pollution control engineering, the combustion temperature of gas fuel is generally 1600-1850 ℃, the combustion temperature is slightly increased and decreased, and the increase and decrease range of the temperature thermal type NO generation amount is large (the relationship is obvious in the relation between the NO x concentration in the coke oven waste gas and the flame path temperature, the data show that the NO x amount is about +/-30 mg/m < 3 > when the temperature is +/-10 ℃. The combustion temperature has a decisive effect on thermal-thermal NO generation, when the combustion temperature is lower than 1350 ℃, almost NO is generated, when the combustion temperature is lower than 1600 ℃, the NO amount is very little, but when the combustion temperature is higher than 1600 ℃, the NO amount is increased rapidly according to an exponential rule. The nitrogen oxides generated in the coke oven smoke are mainly temperature thermal type NOx and account for more than 90 percent of the total amount.

The transient type or rapid type NO x is formed by decomposing a hydrocarbon-based fuel during combustion and reacting the decomposition product with N2 in the air.

Therefore, the control of the nitrogen oxides in the flue gas of the coke oven mainly reduces the generation of thermal nitrogen oxides, and a device for controlling the nitrogen oxides from the production source of the coke oven is needed.

Disclosure of Invention

The utility model provides a coke oven production source accuse nitre device has solved the problem that exists among the prior art.

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

a coke oven production source nitrate control device comprises a coke oven body, regenerators equidistantly arranged along the length direction of the coke oven body are arranged in the coke oven body, combustion chambers equidistantly arranged along the length direction of the coke oven body are arranged at the top of the regenerators, carbonization chambers are arranged between the adjacent combustion chambers, a conveying channel is arranged at the bottom of the combustion chambers, an adjusting mechanism is arranged on the conveying channel and comprises a cylindrical hollow storage shell fixedly sleeved at the bottom of the conveying channel, a sliding chute with an arc-shaped structure arranged along the length direction is arranged on the inner side wall of the top of the storage shell, a plurality of injection channels with the arc-shaped structure and coaxially arranged with the sliding chute are arranged on the inner side wall of the top of the sliding chute, a rotating shaft coaxially arranged with the storage shell is arranged in the storage shell, and an adjusting sleeve is sleeved on the outer ring of the rotating, the outer side wall of the top of the adjusting sleeve is fixedly connected with an adjusting plate which is located right below the injection channel, and the adjusting plate is connected with the sliding groove in a sliding mode.

Preferably, the distance between the injection channels becomes gradually smaller from the middle position of the storage case to the end position of the storage case, and the width of the injection channels becomes gradually larger from the middle position of the storage case to the end position of the storage case.

Preferably, one side of the coke oven body is provided with an air inlet main pipe, and the air inlet main pipe is provided with a branch air pipe communicated with the interior of the storage shell.

Preferably, the top parts of the combustion chamber and the carbonization chamber are both provided with exhaust pipes fixedly connected with the coke oven body, and the exhaust pipes are both provided with temperature sensors.

Preferably, the rotating shaft is movably sleeved with the coke oven body, and one end of the rotating shaft extending out of the coke oven body is provided with a motor.

In the utility model, the water-saving device is provided with a water-saving valve,

coke oven body through setting up, the regenerator, the carbonization chamber, the blast pipe, temperature sensor, transfer passage, adjustment mechanism, storage housing, the spout, spray the passageway, the regulating plate, the axis of rotation, adjusting sleeve, inlet manifold and combustion chamber, make the effectual temperature that detects combustion chamber and carbonization of this design, in time control gas supply volume, avoid combustion chamber and carbonization chamber high temperature, prevent temperature heating power type NOx and produce, it is balanced to make the carbonization of carbonization chamber simultaneously, improve the coke quality, effectual from source accuse nitre.

Drawings

FIG. 1 is a schematic structural view of a source nitrate control device for coke oven production according to the present invention;

FIG. 2 is a schematic structural diagram of an adjusting mechanism of a source nitrate controlling device for coke oven production according to the present invention;

FIG. 3 is a schematic structural diagram of a spray channel of a source nitrate control device for coke oven production according to the present invention.

In the figure: the coke oven comprises a coke oven body 1, a regenerative chamber 2, a carbonization chamber 3, an exhaust pipe 4, a temperature sensor 5, a conveying channel 6, an adjusting mechanism 7, a storage shell 8, a chute 9, an injection channel 10, an adjusting plate 11, a rotating shaft 12, an adjusting sleeve 13, an air inlet manifold 14 and a combustion chamber 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a coke oven production source nitrate controlling device comprises a coke oven body 1, a regenerator 2 equidistantly arranged along the length direction is arranged inside the coke oven body 1, combustion chambers 15 equidistantly arranged along the length direction of the coke oven body 1 are arranged at the top of the regenerator 2, a carbonization chamber 3 is arranged between the adjacent combustion chambers 15, a conveying channel 6 is arranged at the bottom of the combustion chamber 15, an adjusting mechanism 7 is arranged at the conveying channel 6, the adjusting mechanism 7 comprises a cylindrical hollow storage shell 8 fixedly sleeved at the bottom of the conveying channel 6, a sliding chute 9 with an arc structure is arranged on the inner side wall of the top of the storage shell 8 along the length direction, a plurality of injection channels 10 with an arc structure are arranged on the inner side wall of the top of the sliding chute 9 coaxially with the sliding chute, a rotating shaft 12 coaxially arranged with the storage shell 8 is arranged inside, and an adjusting sleeve 13 is sleeved on the outer ring thread of the rotating, the top outer side wall of the adjusting sleeve 13 is fixedly connected with an adjusting plate 11 which is positioned right below the injection channel 10, and the adjusting plate 11 is connected with the sliding chute 9 in a sliding manner.

Further, the distance between the injection passages 10 becomes gradually smaller from the middle position of the storage case 8 to the end position of the storage case 8, and the width of the injection passages 10 becomes gradually larger from the middle position of the storage case 8 to the end position of the storage case 8.

In particular, an intake manifold 14 is attached to one side of the coke oven body 1, and a branch pipe communicating with the inside of the storage case 8 is attached to the intake manifold 14.

In addition, exhaust pipes 4 fixedly connected with the coke oven body 1 are mounted on the tops of the combustion chamber 15 and the carbonization chamber 3, and temperature sensors 5 are mounted on the exhaust pipes 4.

In addition, the rotating shaft 12 is movably sleeved with the coke oven body 1, and one end of the rotating shaft 12 extending out of the coke oven body 1 is provided with a motor;

the first embodiment is as follows:

the coke oven comprises a coke oven body 1, a controller is arranged on one side of the coke oven body 1, a power supply interface, a data interface and a display are arranged on one side of the control box, the controller is electrically connected with a motor, a temperature sensor 5, the power supply interface, the data interface and the display, the temperature sensor 5 adopts a WRPK armored S-shaped temperature sensor, and an ARM single chip microcomputer is adopted in the controller.

The working principle is as follows: when the device is used, the temperature inside the carbonization chamber 3 and the combustion chamber 15 is monitored in real time through the temperature sensors 5 arranged at the top of the carbonization chamber 3 and the combustion chamber 15, when the temperature inside the carbonization chamber 3 and the combustion chamber 15 reaches above 1300 ℃, the motor on the rotating shaft 12 is started, so that the adjusting sleeve 13 moves along the length direction of the adjusting sleeve under the action of the screw threads, at the moment, the adjusting plate 11 slides along the length direction of the sliding chute 9, the adjusting plate 11 blocks the injection channel 10, so that the gas outlet quantity on the injection channel 10 at the top of the storage shell 8 is adjusted, and the combustion state is controlled, because the distance between the injection channels 10 is gradually reduced from the middle position of the storage shell 8 to the end position of the storage shell 8, the width of the injection channel 10 is gradually increased from the middle position along the storage shell 8 to the end position of the storage shell 8, so that the temperature in the middle and at both ends of the combustion chamber, the temperature in the middle and two ends of the combustion chamber 15 is prevented from being consistent, and the temperature of the carbonization chamber 3 is ensured to be consistent; when 3 temperature sharp changes in carbonization chamber, the inside state of falling of fire that reachs of surface carbonization chamber 3, the motor starts at this time, make the complete shutoff of regulating plate 11 and spray passageway 10, cut off the gas supply, the effectual temperature that detects combustion chamber and carbonization of this design, in time control gas supply volume, avoid combustion chamber and carbonization chamber high temperature, prevent that temperature heating power type NOx from producing, it is balanced to make the carbonization chamber carbonization simultaneously, improve the coke quality, effectual from source accuse nitre.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

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

1. A source nitrate control device for coke oven production comprises a coke oven body (1) and is characterized in that regenerators (2) are arranged in the coke oven body (1) at equal intervals along the length direction of the coke oven body, combustion chambers (15) are arranged at the top of the regenerators (2) at equal intervals along the length direction of the coke oven body (1), carbonization chambers (3) are arranged between the adjacent combustion chambers (15), a conveying channel (6) is arranged at the bottom of the combustion chamber (15), an adjusting mechanism (7) is arranged on the conveying channel (6), the adjusting mechanism (7) comprises a storage shell (8) which is fixedly sleeved with the bottom of the conveying channel (6) and has a cylindrical hollow structure, a sliding groove (9) which is arranged in the length direction of the sliding groove is formed in the inner side wall of the top of the storage shell (8), a plurality of injection channels (10) which are coaxially arranged with the sliding groove (9) and have an arc structure are formed in the inner side, the internally mounted of storage casing (8) has axis of rotation (12) rather than coaxial setting, adjusting sleeve (13) have been cup jointed to the outer lane screw thread of axis of rotation (12), the top lateral wall fixedly connected with of adjusting sleeve (13) is located regulating plate (11) under injection passage (10), and regulating plate (11) and spout (9) sliding connection.

2. A source head nitrate control device for coke oven production according to claim 1, characterized in that the distance between the injection channels (10) becomes gradually smaller from the middle position of the storage housing (8) to the end position of the storage housing (8), and the width of the injection channels (10) becomes gradually larger from the middle position of the storage housing (8) to the end position of the storage housing (8).

3. The source nitrate control device for the coke oven production according to claim 1, characterized in that an air inlet main pipe (14) is arranged on one side of the coke oven body (1), and a branch air pipe communicated with the inside of the storage shell (8) is arranged on the air inlet main pipe (14).

4. The source nitrate control device for the coke oven production according to claim 1, characterized in that exhaust pipes (4) fixedly connected with the coke oven body (1) are respectively installed at the tops of the combustion chamber (15) and the carbonization chamber (3), and temperature sensors (5) are respectively installed on the exhaust pipes (4).

5. The source nitrate controlling device for the coke oven production according to claim 1, wherein the rotating shaft (12) is movably sleeved with the coke oven body (1), and a motor is installed at one end of the rotating shaft (12) extending out of the coke oven body (1).