Rapid unblocking device for coke oven gas drainer

Abstract

The utility model provides a quick unblocking device for a coke oven gas drainer, and relates to the field of ancillary facilities of gas drainers. The device comprises a drainage assembly and a cleaning assembly. The drainage assembly comprises a primary valve, a connecting pipe and a secondary valve; two ends of the connecting pipe are respectively connected with the gas pipeline and the gas drainer, the primary valve is arranged at one end of the connecting pipe close to the gas pipeline, and the secondary valve is arranged at one end of the connecting pipe close to the gas drainer; the decontamination assembly comprises a first valve, a three-way pipe, a test joint, a second valve and a water outlet; an inlet of the first valve is communicated with a connecting pipe between the primary valve and the secondary valve, an outlet of the first valve is communicated with a first interface of the three-way pipe, the test joint is arranged at a second interface of the three-way pipe, an inlet of the second valve is communicated with a third interface of the three-way pipe, and an outlet of the second valve is communicated with the water outlet; hazardous waste generated after steam cleaning of the gas pipeline does not fall to the ground, soil pollution is reduced, and the increasingly stringent environmental protection management requirements at present are met.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary facilities for gas drainers, and more specifically, to a rapid unblocking device for coke oven gas drainers. Background Technology

[0002] Gas drainers are common and crucial auxiliary equipment in gas pipelines for high-coking coal and other similar materials. Their function is to continuously drain condensate and other mechanical water from the gas pipeline, ensuring its unobstructed flow. Especially in steel mills, gas drainers are ubiquitous and used very frequently. Because high-coking coal has a complex composition, particularly the tar and naphthalene in coke oven gas, which easily solidify with temperature changes, gas drainers can become clogged, preventing the proper drainage of condensate. Therefore, the industry commonly uses steam-cleaned drainers to treat internal deposits of tar and naphthalene.

[0003] It is understood that after most companies use steam cleaning gas drainers, they will sweep out hazardous waste such as black tar and naphthalene. Due to the lack of corresponding receiving devices, the working ground and the exterior of the gas drainer cylinder are covered with flowing black grime, making the site dirty and messy, and failing to meet environmental management requirements. Utility Model Content

[0004] The purpose of this utility model is to provide a rapid unblocking device for coke oven gas drainers, which can ensure that hazardous waste does not fall to the ground after steam cleaning of gas pipelines, reduce soil pollution, and meet the increasingly stringent environmental management requirements.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] This application provides a rapid unblocking device for a coke oven gas drainer, comprising a drain assembly and a cleaning assembly. The drain assembly includes a primary valve, a connecting pipe, and a secondary valve. The two ends of the connecting pipe are respectively connected to a gas pipeline and a gas drainer. The primary valve is located at the end of the connecting pipe closest to the gas pipeline, and the secondary valve is located at the end of the connecting pipe closest to the gas drainer. The cleaning assembly includes a first valve, a tee pipe, a test connector, a second valve, and a drain outlet. The inlet of the first valve is connected to the connecting pipe between the primary valve and the secondary valve, the outlet of the first valve is connected to the first port of the tee pipe, the test connector is located at the second port of the tee pipe, the inlet of the second valve is connected to the third port of the tee pipe, and the outlet of the second valve is connected to the drain outlet.

[0007] Furthermore, in this invention, the inlet of the first valve is connected to the connecting pipe via a DN20 pipeline.

[0008] Furthermore, in this invention, the outer walls of the pipelines in the aforementioned cleaning components are all provided with a heat insulation layer.

[0009] Furthermore, in this utility model, the above-mentioned insulation layer has a double-layer structure; wherein the inner layer is insulation cotton and the outer layer is glass fiber cloth.

[0010] Compared with the prior art, the present invention has at least the following advantages or beneficial effects:

[0011] This invention involves installing a tee pipe and other pipelines between the primary and secondary valves of a gas drainer from the gas pipeline. A plug is installed at the end of each pipe, serving as a test connection. The branch pipes of the tee pipe are used to drain the cleaned dirt to the drain outlet of the gas drainer. The device has a simple structure, is easy to operate, and is highly effective. It effectively cleans the dirt inside the gas drainer, quickly resolving blockages and preventing gas accidents caused by condensate pipe blockages. It also ensures that tar and naphthalene dirt do not spill onto the ground, and that the exterior of the gas drainer remains clean and stain-free, reducing the time required for secondary cleaning by on-site personnel.

[0012] In addition, this device is also applicable to gas drainers, which are auxiliary facilities for various types of gas pipelines such as blast furnaces and converters. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is an embodiment of the present utility model.

[0015] Icons: 1. Gas pipeline; 2. Primary valve; 3. Connecting pipe; 4. Secondary valve; 5. Gas drainer; 6. First valve; 7. T-joint; 8. Test joint; 9. Second valve; 10. Drain outlet; 11. 90° elbow. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] Example 1

[0020] This embodiment provides a rapid unblocking device for a coke oven gas drainer, such as... Figure 1 As shown, it includes a drainage assembly and a cleaning assembly. The drainage assembly includes a primary valve 2, a connecting pipe 3, and a secondary valve 4. The two ends of the connecting pipe 3 are connected to a gas pipeline 1 and a gas drainer 5, respectively. The primary valve 2 is located at the end of the connecting pipe 3 near the gas pipeline 1, and the secondary valve 4 is located at the end of the connecting pipe 3 near the gas drainer 5. The cleaning assembly includes a first valve 6, a tee pipe 7, a test connector 8, a second valve 9, and a drain outlet 10. The inlet of the first valve 6 is connected to the connecting pipe 3 between the primary valve 2 and the secondary valve 4, and the outlet of the first valve 6 is connected to the first port of the tee pipe 7. The test connector 8 is located at the second port of the tee pipe 7, the inlet of the second valve 9 is connected to the third port of the tee pipe 7, and the outlet of the second valve 9 is connected to the drain outlet 10. Further, the inlet of the first valve 6 is connected to the connecting pipe 3 via a DN20 pipeline; the DN20 pipeline is made of carbon steel. It should be noted that the second port of the tee pipe 7 is extended and the end is plugged to form the test connector 8 or serve as a cleaning / test nozzle. In this embodiment, the first valve 6 and the second valve 9 can be ball valves.

[0021] When the gas drainer 5 is blocked, connect steam to the test connector 8 (cleaning / test head), open the first valve 6 and the second valve 9, and perform steam purging for a certain period of time. Observe at the drain outlet 10 that the cleaning dirt discharged through the pipeline of the second valve 9 changes from a large amount of black tar-like sticky substance to condensate or steam condensate discharged. The process can be stopped when this happens.

[0022] In existing technologies, the black tar-like residue and residual hazardous substances of naphthalene, after being cleaned by the first valve 6, flow directly onto the ground and the exterior of the drain cylinder. Each cleaning operation not only leaves the site filthy but also fails to meet the environmental management requirements for hazardous waste. In this embodiment, the cleaned black grime is diverted through a pipeline at the second valve 9 to the drain outlet 10 for collection and treatment. This ensures that hazardous waste does not spill onto the ground and avoids secondary cleaning by staff, saving labor time.

[0023] In one embodiment of this example, such as Figure 1 As shown, the pipeline connected to the third interface of the tee pipe 7 can be set with two 90° elbows 11, which allows the drain outlet 10 to be better connected to the gas drainer 5, so that the cleaned dirt can flow smoothly and fall into the gas drainer 5.

[0024] Example 2

[0025] This embodiment provides a rapid unblocking device for a coke oven gas drainer, which is basically the same as that in embodiment 1. The main difference between the two is that the outer wall of the pipeline in the cleaning component is provided with a heat insulation layer.

[0026] Furthermore, the insulation layer has a double-layer structure; the inner layer is insulation cotton, and the outer layer is fiberglass cloth.

[0027] To prevent pipe freezing and blockage in winter, this embodiment adopts a double-layer insulation structure with insulation cotton as the inner layer and fiberglass cloth as the outer layer, so that the device can quickly and easily clean the blockage of the gas drain 5 even in cold winter.

[0028] In summary, the embodiments of this utility model provide a rapid unblocking device for a coke oven gas drainer 5, which has at least the following advantages or beneficial effects:

[0029] This utility model involves installing a tee pipe 7 and other pipelines between the primary valve 2 and secondary valve 4 of the gas pipeline 1 and the gas drainer 5. After adding a plug at the end, it serves as a test joint 8. The branch pipeline of the tee pipe is used to guide the dirt after cleaning to the drain outlet 10 of the gas drainer 5. Its structure is simple, easy to operate, and effective. It effectively cleans the dirt inside the gas drainer 5, which can quickly deal with the blockage of the gas drainer 5 and avoid gas accidents caused by the blockage of the condensate pipe. It can also ensure that tar and naphthalene dirt do not fall to the ground, and that the outside of the gas drainer 5 cylinder is clean and free of stains, while reducing the labor time of the staff to clean the site a second time.

[0030] In addition, this embodiment is also applicable to the gas drainer 5, an auxiliary facility of various gas pipelines 1 such as blast furnaces and converters.

[0031] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rapid unblocking device for a coke oven gas drainer, characterized in that, include: A drainage assembly includes a primary valve, a connecting pipe, and a secondary valve; the two ends of the connecting pipe are respectively connected to a gas pipeline and a gas drainer; the primary valve is located at the end of the connecting pipe closest to the gas pipeline; and the secondary valve is located at the end of the connecting pipe closest to the gas drainer. A cleaning assembly includes a first valve, a tee pipe, a test connector, a second valve, and a drain outlet; the inlet of the first valve is connected to the connecting pipe between the primary valve and the secondary valve, the outlet of the first valve is connected to the first port of the tee pipe, the test connector is located at the second port of the tee pipe, the inlet of the second valve is connected to the third port of the tee pipe, and the outlet of the second valve is connected to the drain outlet.

2. The rapid unblocking device for a coke oven gas drainer according to claim 1, characterized in that, The inlet of the first valve is connected to the connecting pipe via a DN20 pipeline.

3. The rapid unblocking device for a coke oven gas drainer according to claim 1, characterized in that, The outer walls of the pipelines in the cleaning assembly are all equipped with a heat insulation layer.

4. The rapid unblocking device for a coke oven gas drainer according to claim 3, characterized in that, The insulation layer has a double-layer structure; The inner layer is made of thermal insulation cotton, and the outer layer is made of fiberglass cloth.

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