Coke oven gas nozzle system for preventing material hanging

Abstract

The utility model discloses a coke oven gas nozzle system capable of preventing material hanging, which belongs to the field of coke oven parts, is arranged between a gas transverse pipe and a heat storage chamber, and comprises a vertical pipe and an upper inclined pipe which is communicated with the middle of the vertical pipe and is obliquely arranged upwards, the upper end of the vertical pipe is connected with the heat storage chamber, the lower end of the vertical pipe is provided with a plug, the upper end of the upper inclined pipe is connected with the gas transverse pipe, and the gas is sprayed through the nozzle in the gas transverse pipe, the nozzle comprises a nozzle body and a vent hole formed in the center of the nozzle body, the lower end of the vent hole is an open conical hole, and the upper end of the vent hole is an equal-diameter straight hole. Teflon coatings are coated on the inner walls of the conical hole and the equal-diameter straight hole. The non-stick coating is coated on the inner wall of the nozzle, so that the adhesive force of a recycled gas product on the inner wall of the nozzle is reduced, and the nozzle is prevented from hanging materials.

Description

Technical Field

[0001] The utility model relates to the field of coke oven parts, in particular to a coke oven gas nozzle. Background Art

[0002] At present, the No. 1 coke oven is heated by coke oven gas. The gas is evenly distributed in the longitudinal direction through the arrangement of the orifice plate size, and then evenly distributed in the transverse direction through the arrangement of the nozzle size in the transverse pipe. Since the recycled gas contains chemical substances such as tar, naphthalene, and sulfide, during use, the heating gas flow is large, and solid crystals are easily precipitated at the nozzle, causing the nozzle size to change, resulting in uneven distribution of gas in the transverse pipe. If it is not discovered in time, it is easy to cause abnormal heating of the fire channel, low-temperature fire channel, and uneven temperature distribution in the transverse row. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a coke oven gas nozzle system for preventing material hanging, wherein the inner wall is coated with a non-stick coating to reduce the adhesion of the chemical products in the recycled gas to the inner wall of the nozzle, thereby preventing the occurrence of material hanging on the nozzle.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A coke oven gas nozzle system for preventing material hanging, the coke oven gas nozzle system is arranged between a gas cross pipe and a heat storage chamber, the coke oven gas nozzle system comprises a vertical pipe and an upper inclined pipe connected to the middle of the vertical pipe and arranged upwardly, the upper end of the vertical pipe is connected to the heat storage chamber, and the lower end is provided with a plug, the upper end of the upper inclined pipe is connected to the gas cross pipe, and sprays through a nozzle in the gas cross pipe, the nozzle comprises a nozzle body and an air vent arranged in the center of the nozzle body, the lower end of the air vent is an open tapered hole, and the upper end is an equal-diameter straight hole, and the inner walls of the tapered hole and the equal-diameter straight hole are coated with Teflon coating.

[0006] A further improvement of the technical solution of the utility model is that two flushing pipes connected to the interior of the upper inclined tube are arranged on the upper inclined tube, the two flushing pipes are symmetrically arranged on both sides of the upper inclined tube, and the central axis of the flushing pipe is perpendicular to the inner wall of the conical hole of the nozzle.

[0007] A further improvement of the technical solution of the utility model is that: a lower inclined tube with an opening tilted downward is also arranged on the vertical tube at a position opposite to the upper inclined tube, and a tube seal is arranged at the opening of the lower inclined tube.

[0008] A further improvement of the technical solution of the utility model is that the plug is connected to the lower end of the vertical pipe through threads, and a sealing gasket is provided at the connection between the plug and the vertical pipe.

[0009] Due to the adoption of the above technical solution, the technical progress achieved by the utility model is:

[0010] The utility model can reduce the adhesion of the chemical products in the recycled coal gas to the inner wall of the nozzle without changing the original size of the nozzle by spraying Teflon coating evenly on the inner wall of the nozzle to form a protective coating after air drying, so that the precipitated chemical products flow into the furnace body with the heated gas. Thus, the occurrence of nozzle hanging can be prevented. The coating also has the chemical properties of acid resistance, alkali resistance and non-volatility.

[0011] The solution of the utility model reduces the labor intensity of on-site work, and also prevents the problem of low temperature of the fire channel caused by the change of nozzle size, and also reduces the occurrence of environmental accidents.

[0012] The upper inclined pipe of the utility model for installing the nozzle is tilted upward, so that some attachments can fall into the blocking part at the bottom of the vertical pipe. At the same time, the vent hole is regularly cleaned by high-pressure gas or liquid in conjunction with the flushing pipe, so as to better maintain the nozzle and avoid blockage. The lower inclined pipe can be used as a spare port for repairing or cleaning the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0015] Figure 2 This is a schematic diagram of the nozzle structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the present utility model;

[0017] Among them, 1. vertical pipe, 2. upper inclined pipe, 3. plugging, 4. nozzle, 41. nozzle body, 42. vent, 5. flushing pipe, 6. lower inclined pipe, 7. pipe seal, 8. gas horizontal pipe. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the embodiments:

[0019] Example 1

[0020] A coke oven gas nozzle system for preventing hanging of materials, such as Figure 1 , 2As shown, the coke oven gas nozzle system includes a vertical pipe 1 and an upper inclined pipe 2 connected to the middle of the vertical pipe 1 and arranged obliquely upward. The coke oven gas nozzle system is arranged between the gas cross pipe 8 and the regenerator. The upper end of the vertical pipe 1 is used to connect to the regenerator, and the upper end of the upper inclined pipe 2 is used to connect to the gas cross pipe 8. Specifically, the upper end of the vertical pipe 1 is connected to the regenerator, and the lower end is connected to the plug 3 by threading. A sealing gasket is provided at the connection between the plug 3 and the vertical pipe 1. The upper end of the upper inclined pipe 2 is connected to the gas cross pipe 8, and a nozzle 4 is installed in the gas cross pipe. The gas at the upper end of the upper inclined pipe 2 enters the nozzle 4 of the gas cross pipe for distribution. The nozzle 4 includes a nozzle body 41, a vent hole 42 is set through the center of the nozzle body 41, and the inner wall of the vent hole 42 is evenly sprayed with a Teflon coating to form a protective coating after air drying. The inner wall of the nozzle is coated with a non-stick coating. Without changing the original size of the nozzle, the adhesion of the chemical products in the recycled coal gas to the inner wall of the nozzle can be reduced, so that the precipitated chemical products flow into the furnace body with the heated gas. Thereby preventing the occurrence of nozzle hanging. The coating also has the chemical properties of acid resistance, alkali resistance and non-volatility.

[0021] Preferably, the lower end of the vent hole 42 is an open tapered hole, and the upper end is a straight hole of equal diameter, and the inner walls of the tapered hole and the straight hole of equal diameter are coated with Teflon coating.

[0022] Furthermore, two flushing pipes 5 can be provided on the upper inclined tube 2. The flushing pipes 5 are connected to the interior of the upper inclined tube 2. The two flushing pipes 5 are symmetrically arranged on both sides of the upper inclined tube 2, and the central axis of the flushing pipe 5 is perpendicularly arranged relative to the inner wall of the tapered hole. The flushing pipes are used to regularly clean the vents with high-pressure gas or liquid to better maintain the nozzle and avoid blockage.

[0023] Example 2

[0024] The difference between this embodiment and embodiment 1 is that a lower inclined tube 6 is arranged at a position opposite to the vertical tube 1 and the upper inclined tube 2. Figure 3 As shown, the opening of the lower inclined tube 6 is tilted downward, a tube seal 7 is provided at the opening of the lower inclined tube 6, a sealing gasket is provided between the tube seal 7 and the lower inclined tube 6, and the lower inclined tube can be used as a port for repairing or cleaning the nozzle for standby.

[0025] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A coke oven gas nozzle system for preventing material hanging, the coke oven gas nozzle system is arranged between the gas cross pipe (8) and the regenerator, Features: The coke oven gas nozzle system comprises a vertical pipe (1) and an upper inclined pipe (2) connected to the middle of the vertical pipe (1) and arranged obliquely upward. The upper end of the vertical pipe (1) is connected to a heat storage chamber and a plug (3) is arranged at the lower end. The upper end of the upper inclined pipe (2) is connected to a gas cross pipe (8) and is sprayed through a nozzle (4) in the gas cross pipe (8). The nozzle (4) comprises a nozzle body (41) and an air vent (42) arranged at the center of the nozzle body (41). The lower end of the air vent (42) is an open conical hole and the upper end is a straight hole of equal diameter. The inner walls of the conical hole and the straight hole of equal diameter are coated with Teflon coating.

2. A coke oven gas nozzle system for preventing material hanging according to claim 1, Features: The upper inclined tube (2) is provided with two flushing tubes (5) which are in communication with the interior of the upper inclined tube (2). The two flushing tubes (5) are symmetrically arranged on both sides of the upper inclined tube (2), and the central axis of the flushing tube (5) is perpendicularly arranged to the inner wall of the tapered hole of the nozzle (4).

3. A coke oven gas nozzle system for preventing material hanging according to claim 1, Features: A lower inclined tube (6) with an opening tilted downward is also provided at a position opposite to the upper inclined tube (2) of the vertical tube (1), and a tube seal (7) is provided at the opening of the lower inclined tube (6).

4. A coke oven gas nozzle system for preventing material hanging according to claim 1, Features: The plug (3) is connected to the lower end of the vertical pipe (1) through threads, and a sealing gasket is provided at the connection between the plug (3) and the vertical pipe (1).

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