CN214400361U

CN214400361U - Device for improving heating effect of coke oven head

Info

Publication number: CN214400361U
Application number: CN202120407909.4U
Authority: CN
Inventors: 张建社; 王瑞; 谷文彬; 程鹏; 杨树林
Original assignee: Jinneng Science and Technology Co Ltd
Current assignee: Jinneng Science and Technology Co Ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-10-15
Anticipated expiration: 2031-02-24

Abstract

The utility model discloses a device for improving heating effect of coke oven head, including a plurality of combustion chambers arranged in parallel at coke oven coke side and machine side, the lower nozzle is arranged on the furnace end flame path of each combustion chamber and the adjacent flame path of the furnace end, at least one combustion chamber is provided with a small gas branch pipe, the output end of the small gas branch pipe is communicated with the input end of the lower nozzle of the combustion chamber, the input end of the small gas branch pipe is communicated with a gas branch pipe, the gas branch pipe is also communicated with the gas horizontal pipe of the combustion chamber, the gas horizontal pipe is communicated with the main gas pipeline of the basement coke oven; the input end of the lower nozzle in the combustion chamber is also communicated with a main gas pipeline of the basement coke oven through a large gas branch pipe. The beneficial effects of the utility model reside in that, with the help of original coke oven gas automatic reversing system, cause the machine coke side furnace end flame path and the furnace end of lean gas heating to lean gas through little coal gas branch pipe and be close to the flame path, the safety and stability promotes the furnace end flame path and the furnace end is close to the flame path temperature, improves the coke quality.

Description

Device for improving heating effect of coke oven head

Technical Field

The utility model belongs to the technical field of coke oven heating burning, concretely relates to improve device of coke oven furnace end heating effect.

Background

The coke oven is characterized in that a plurality of combustion chambers and carbonization chambers are arranged at intervals in the middle of the coke oven, the combustion chambers are arranged on two opposite sides of the coke oven, the combustion chambers on the two sides are respectively provided with an oven door, a coke pushing system is arranged on the outer side of the oven door, wherein the coke oven side of the coke pushing vehicle is a machine side, and the coke oven side of the coke barrier vehicle or the coke quenching vehicle is a coke side. However, in the using process of the coke oven, the furnace end fire paths on two sides of the coke oven and the adjacent fire paths of the furnace end are greatly influenced by factors such as opening and closing of the oven door, coal feeding moisture and the like, the heat dissipation is more, the temperature is too low due to insufficient heat supply, the coke quality is influenced, and environmental protection and smoke are caused; cracking, erosion and deformation of the furnace wall can also be caused, the damage of the brickwork is accelerated, and the service life of the coke oven is seriously consumed.

In the prior art, a method of supplementing high-calorific-value rich gas such as coke oven gas to a furnace end flame path is generally adopted to increase the heat supply amount. Chinese patent CN202016974U provides a coke oven head heating device, which adds a rich gas main pipe to supplement and heat the lower nozzle, but the oven head heating device needs to add a regulating cock reversing system to perform reversing control on the rich gas main pipe and the rich gas distributing pipe communicated with the rich gas main pipe, which increases the difficulty of practical operation, and it is necessary to ensure that the ventilation system of the added rich gas main pipe is consistent with the operation of the original exchange system of the coke oven in practical operation, and if the situation is inconsistent, the phenomenon of short temperature of the vertical flame path or gas explosion will occur.

Disclosure of Invention

An object of the utility model is to provide and designed a device that improves coke oven end heating effect to the big and easily unexpected defect of the operation degree of difficulty among the coke oven end heating device among the prior art, can promote the furnace end flame path and the neighbouring flame path temperature of furnace end to more than 1200 ℃ safely and stably, make furnace end temperature coefficient reach more than 99%.

In order to achieve the above object, the present invention provides the following technical solutions: a device for improving the heating effect of a coke oven head comprises a plurality of combustion chambers arranged in parallel on the coke side of a coke oven and a plurality of combustion chambers arranged in parallel on the coke side of the coke oven, wherein a lower nozzle is arranged on a flame path of the furnace head of each combustion chamber and a flame path adjacent to the furnace head, a small gas branch pipe is arranged in at least one combustion chamber, the output end of the small gas branch pipe is communicated with one input end of the lower nozzle in the combustion chamber, the input end of the small gas branch pipe is communicated with a gas branch pipe, the gas branch pipe is also communicated with a gas transverse pipe in the combustion chamber, and the gas transverse pipe is communicated with a gas main pipeline of a basement coke oven; the other input end of the lower nozzle in the combustion chamber is communicated with a basement coke oven gas main pipeline through a large gas branch pipe at the combustion chamber. Therefore, on the basis of the original coke oven gas automatic reversing system, the lower nozzle at the position needing to be heated is communicated with the gas branch pipe through the newly added small gas branch pipe, and the coke oven gas is led to the furnace end flame path at the machine side or the coke side and the furnace end adjacent flame path, so that the combustion temperature of the furnace end flame path and the furnace end adjacent flame path is improved. And because the reversing of the newly added small gas branch pipe is controlled by the original coke oven gas automatic reversing system, the small gas branch pipe does not need to be subjected to cock control independently, and the coke oven is prevented from accidents.

The utility model discloses a further improvement still, every be provided with two sets of flame paths of No. two flame paths and No. one flame path in the combustion chamber, the gas violently pipe include with correspond the gas violently pipe N-D of the No. one flame path intercommunication in the combustion chamber and with correspond the gas violently pipe N-S of the No. two flame paths intercommunication in the combustion chamber, the gas branch pipe includes the gas branch pipe N-D that communicates with all gas violently pipes N-D of homonymy and the gas branch pipe N-S that communicates with all gas violently pipes N-S of homonymy, the little gas branch pipe includes little gas branch pipe N-D and little gas branch pipe N-S that communicate with gas branch pipe N-D and gas branch pipe N-S respectively, spout under including respectively with the first machine side lower spray tube and the second machine side lower spray tube that two little gas branch pipes of machine side communicate, spout still under the first coke side lower spray tube and the second coke side lower spray tube that communicate with two little gas branch pipes of coke side respectively under the coke side . Therefore, the whole device for improving the heating effect of the coke oven head is combined with the duplex fire channel of the coke oven body through the two groups of transverse gas pipes, the branch gas pipes, the lower spray pipes and the like, and the device can be implemented in actual production.

The utility model discloses a further improvement still, big gas branch pipe includes first gas branch pipe and second gas branch pipe, the first gas branch pipe intercommunication of coal gas movable joint and this combustion chamber department is all passed through to an input of spray tube under first machine side lower spray tube and the first burnt side lower spray tube, the second gas branch pipe intercommunication of coal gas movable joint and this combustion chamber department is also passed through to an input of spray tube under second machine side lower spray tube and the burnt side of second, first gas branch pipe and second gas branch pipe still all communicate with basement coke oven gas trunk line. Therefore, the coke oven gas in the basement coke oven gas main pipeline can be led to the oven head fire channel at the machine coke side and the oven head adjacent fire channel through the first gas branch pipe and the second gas branch pipe, and the temperature of the oven head fire channel and the oven head adjacent fire channel can meet the requirement.

The utility model discloses a further improvement still, all be provided with add and subtract cock and exchange cock on first coal gas branch pipe and the second coal gas branch pipe, operating personnel can make coke oven gas lead to the machine coke side furnace end flame path and the adjacent flame path of furnace end of lean gas heating through control add and subtract cock to promote the furnace end flame path and the adjacent flame path temperature of furnace end and improve the coke quality.

The utility model discloses a further improvement still, all be provided with the coal gas ball valve on the little coal gas branch pipe, can adjust upright flame path like this and mend coal-fired tolerance.

The utility model discloses a further improvement still, basement coke oven gas main pipe's machine side and burnt side all are provided with overhauls the platform, and the convenience is in charge of and is carried out periodic inspection and maintenance to the junction and the gas ball valve of little gas branch pipe to the coal gas.

The utility model is further improved in that the pipe diameters of the coal gas branch pipe N-D and the coal gas branch pipe N-S are DN65mm, so as to meet the requirement of the coal gas consumption on the machine coke side.

The utility model is further improved, the diameter of the small coal gas branch pipe is DN15mm, so as to meet the demand of the coal gas consumption of the vertical flue.

The beneficial effects of the utility model reside in that, the utility model discloses on the basis with the help of original coke oven gas automatic reversing system, cause the machine coke side furnace end flame path and the adjacent flame path of furnace end of lean gas heating with coke oven gas through little coal gas branch pipe to realized promoting the purpose of the adjacent flame path temperature of furnace end flame path and furnace end and improving the coke quality, obviously risen the temperature of the adjacent upright flame path of furnace end and furnace end, reduce the burnt proportion of furnace end, make the coke quality have obvious improvement, improved user's satisfaction. And because the original coke oven gas automatic reversing system is used, the flow direction of the small gas branch pipe is not required to be independently controlled in the reversing process, the risk of wrong direction changing is avoided, and the stable operation of the coke oven in the safety production is ensured.

Furthermore, the utility model relates to a principle is reliable, and simple structure has very extensive application prospect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a sectional view taken at a-a in fig. 1.

Fig. 3 is a partial enlarged view of the point i in fig. 1.

Fig. 4 is a partial enlarged view of fig. 1 at ii.

In the figure, 1, a basement coke oven gas main pipe, 2, a machine side carbon black tail gas main pipe, 3, a machine side carbon black tail gas main pipe, 4, a gas transverse pipe N-D, 5, a gas transverse pipe N-S, 6, a valve, 7, a gas branch pipe N-D, 8, a gas branch pipe N-S, 9, a small gas branch pipe, 10, a gas ball valve, 11, a machine side first lower spray pipe, 12, a machine side second lower spray pipe, 13, a coke side first lower spray pipe, 14, a coke side second lower spray pipe, 15, a gas movable joint, 16, an overhaul platform, 17 and a large gas branch pipe.

Detailed Description

In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below 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, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

The following explains key terms appearing in the present invention.

As shown in the drawing, the utility model relates to an improve device of coke oven furnace end heating effect, including basement coke oven gas trunk line 1, the equal interval in the machine side of basement coke oven gas trunk line 1 and the burnt side is provided with a plurality of combustion chambers, all is provided with two sets of flame paths in every combustion chamber moreover, No. one flame path and No. two flame paths promptly. The gas transverse pipes N-D4 are arranged at all the single flame paths, one ends of all the gas transverse pipes N-D4 are connected with the gas branch pipes N-D7 through connecting pipes, a valve 6 is arranged at the connecting pipe, and the other ends of all the gas transverse pipes N-D4 are communicated with the basement coke oven gas main pipe 1; all double-number flame paths are provided with transverse gas pipes N-S5, one ends of the transverse gas pipes N-S5 are connected with the gas branch pipes N-S8 through connecting pipes, valves 6 are also arranged on the connecting pipes, and the other ends of the transverse gas pipes N-S5 are also communicated with the main basement coke oven gas pipeline 1.

In addition, at least one combustion chamber is provided with a small gas branch pipe 9. Furthermore, preferably, two small gas branch pipes 9 are additionally arranged in at least one combustion chamber on the machine side and the coke side of the coke oven respectively, and the two combustion chambers additionally provided with the small gas branch pipes 9 are positioned in the same row. The gas branch pipes N-D7 and N-S8 of the coke oven are respectively communicated with one end of two small gas branch pipes 9. The other end of the small gas branch pipe 9 is communicated with an input end of a furnace end fire channel in the combustion chamber and a lower spray pipe at the position of the furnace end adjacent to the fire channel. The end parts of two small gas branch pipes 9 positioned at the machine side of the main gas pipeline 1 of the basement coke oven are respectively communicated with a first lower spray pipe 11 at the machine side of the combustion chamber and a second lower spray pipe 12 at the machine side; two small gas branch pipes 9 positioned at the coke side of the basement coke oven gas main pipe 1 are respectively communicated with a coke side first lower spray pipe 13 and a coke side second lower spray pipe 14 in the combustion chamber. Further, through calculation and analysis, the small gas branch pipe 9 is a pipeline with the pipe diameter of DN15mm, and the gas branch pipe N-D7 and the gas branch pipe N-S8 are pipelines with the pipe diameter of DN65 mm. In addition, the small gas branch pipes 9 are respectively provided with a gas ball valve 10, the other input end of the machine side first lower spray pipe 11 and the other input end of the coke side first lower spray pipe 13 are respectively communicated with a first gas branch pipe at the combustion chamber through a gas movable joint 15, and the first gas branch pipes are also communicated with a basement coke oven gas main pipe 1; the other input end of the machine side second lower spray pipe 12 and the other input end of the coke side second lower spray pipe 14 are both communicated with a second gas branch pipe at the combustion chamber through a gas movable joint 15, and the second gas branch pipe is also communicated with the basement coke oven gas main pipe 1. And the first gas branch pipe and the second gas branch pipe are both provided with an add-subtract cock and an exchange cock.

In order to conveniently overhaul the pipeline, overhaul platforms 16 are arranged on the machine side and the coke side of the main basement coke oven gas pipeline 1, one of the overhaul platforms 16 is located on one side of the main carbon black tail gas pipeline 2 on the machine side close to the main basement coke oven gas pipeline 1, the other overhaul platform 16 is located on one side of the main carbon black tail gas pipeline 3 on the coke side close to the main basement coke oven gas pipeline 1, the two overhaul platforms 16 are located below the gas branch pipes and the small gas branch pipes 9, and the overhaul platforms 16 are preferably stepped platforms.

Additionally, the utility model discloses an among the concrete implementation, add the quantity of the combustion chamber of little coal gas branch pipe 9 to and the position of arranging of the combustion chamber of adding little coal gas branch pipe 9 can carry out concrete setting according to the specific furnace end flame path of coke oven and the heating demand of the neighbouring flame path of furnace end, and it all belongs to the utility model discloses a protection scope.

Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and substance of the present invention, and these modifications or substitutions are intended to be within the scope of the present invention/any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A device for improving the heating effect of a coke oven head comprises a plurality of combustion chambers arranged in parallel on the coke side of a coke oven and a plurality of combustion chambers arranged in parallel on the coke side of the coke oven, wherein a lower nozzle is arranged on a flame path of the oven head of each combustion chamber and a flame path adjacent to the oven head, and the device is characterized in that at least one combustion chamber is internally provided with a small coal gas branch pipe (9), the output end of the small coal gas branch pipe (9) is communicated with one input end of the lower nozzle in the combustion chamber, the input end of the small coal gas branch pipe (9) is communicated with a coal gas branch pipe, the coal gas branch pipe is also communicated with a coal gas transverse pipe in the combustion chamber, and the coal gas transverse pipe is communicated with a basement coke oven gas main pipe (1); the other input end of the lower nozzle in the combustion chamber is communicated with a basement coke oven gas main pipeline (1) through a large gas branch pipe (17) at the combustion chamber.

2. The device for improving the heating effect of the coke oven head as claimed in claim 1, wherein two sets of flame paths including a double flame path and a single flame path are arranged in each combustion chamber, the gas horizontal pipes comprise gas horizontal pipes N-D (4) communicated with the single flame path in the corresponding combustion chamber and gas horizontal pipes N-S (5) communicated with the double flame path in the corresponding combustion chamber, the gas branch pipes comprise gas branch pipes N-D (7) communicated with all the gas horizontal pipes N-D (4) on the same side and gas branch pipes N-S (8) communicated with all the gas horizontal pipes N-S (5) on the same side, the small gas branch pipes (9) comprise small gas branch pipes N-D and small gas branch pipes N-S respectively communicated with the gas branch pipes N-D (7) and the gas branch pipes N-S (8), the lower nozzle comprises a first machine side lower spray pipe (11) and a second machine side lower spray pipe (12) which are respectively communicated with the two small coal gas branch pipes (9) on the machine side, and the lower nozzle further comprises a first coke side lower spray pipe (13) and a second coke side lower spray pipe (14) which are respectively communicated with the two small coal gas branch pipes (9) on the coke side.

3. The device for improving the heating effect of the coke oven head as claimed in claim 2, wherein the large gas branch pipe (17) comprises a first gas branch pipe and a second gas branch pipe, one input end of the first machine side lower spray pipe (11) and one input end of the first coke side lower spray pipe (13) are communicated with the first gas branch pipe at the combustion chamber through a gas joint (15), one input end of the second machine side lower spray pipe (12) and one input end of the second coke side lower spray pipe (14) are also communicated with the second gas branch pipe at the combustion chamber through the gas joint (15), and the first gas branch pipe and the second gas branch pipe are also communicated with the basement coke oven gas main pipe (1).

4. The device for improving the heating effect of the coke oven head of claim 3, wherein the first gas branch pipe and the second gas branch pipe are provided with an add-subtract cock and an exchange cock.

5. The device for improving the heating effect of the coke oven head according to the claim 1 or 2, characterized in that the small gas branch pipes (9) are provided with gas ball valves (10).

6. The device for improving the heating effect of the coke oven head of the coke oven as claimed in claim 1 or 3, wherein the basement coke oven gas main pipe (1) is provided with an overhaul platform (16) at the machine side and the coke side.

7. The device for improving the heating effect of the coke oven head of the coke oven as claimed in claim 2, wherein the pipe diameters of the gas branch pipes N-D (7) and N-S (8) are DN65 mm.

8. The device for improving the heating effect of the coke oven head according to claim 1 or 2, wherein the small gas branch pipe (9) has a pipe diameter of DN15 mm.