A kind of coal gas tank body ash removal pipeline's clearing device

Abstract

The application discloses a kind of coal gas tank body ash removal pipeline's clearing and blocking device, comprising: coal gas tank body;Ash removal pipeline, the ash removal pipeline is connected with the coal gas tank body, nitrogen pipeline is also equipped on the ash removal pipeline;Nitrogen backflush valve, the nitrogen backflush valve is equipped on the nitrogen pipeline;Wherein, the connection of nitrogen pipeline and ash removal pipeline uses oblique interface setting.This clearing and blocking device, by the high-speed reverse impact of nitrogen, can quickly and effectively disperse and discharge accumulated dust board knot, greatly shorten the clearing and blocking time, compared with traditional manual wind unloading mode, can timely restore the normal ash removal function of ash removal pipeline, guarantee the continuous stable operation of coal gas tank body system.And the connection of nitrogen pipeline and ash removal pipeline uses oblique interface design, so that nitrogen enters ash removal pipeline and produces more complex spiral flow, further enhances the scouring effect on accumulated dust board knot, improves clearing and blocking efficiency.

Description

Technical Field

[0001] This application relates to the field of ash discharge in gas tanks, specifically to a device for unblocking ash discharge pipelines in gas tanks. Background Technology

[0002] In the relevant settings of the gas box, due to the high alkali metal content in the ash discharge pipe, coupled with the particulate matter carried by the gas flow staying in the lower part of the box for a long time, it is very easy to cause ash accumulation and caking in the lower part of the gas box, resulting in blockage. This prevents normal ash discharge and conveying, requiring shutdown for cleaning and unblocking, causing unplanned shutdown of the blast furnace and partial shutdown of continuous production, increasing labor costs and reducing production efficiency. Utility Model Content

[0003] In view of this, this application proposes a device for unclogging a gas box ash discharge pipe, comprising:

[0004] Gas box body;

[0005] An ash discharge pipe is connected to the gas box body, and a nitrogen pipe is also provided on the ash discharge pipe;

[0006] A nitrogen backflush valve is provided on the nitrogen pipeline;

[0007] The connection between the nitrogen pipeline and the ash discharge pipeline is set with an oblique interface.

[0008] According to a preferred embodiment, the nitrogen pipeline is provided with an installation interface that matches the nitrogen backflushing valve, and the installation interface is a flange.

[0009] According to a preferred embodiment, the ash discharge pipe is also equipped with a flow meter.

[0010] According to a preferred embodiment, the flow meter is also connected to an indicator light, and the flow meter is set to control the indicator light to emit a bright display when the flow rate exceeds a preset metering level.

[0011] Furthermore, the ash unloading pipe is connected to the gas box at an angle.

[0012] According to a preferred embodiment, the ash discharge pipe is located near the vertical side.

[0013] According to a preferred embodiment, the number of ash discharge pipes is greater than or equal to 1, and each ash discharge pipe is provided with a nitrogen pipe.

[0014] Furthermore, the number of ash discharge pipes is 3, and the angles and distances of each ash discharge pipe are evenly distributed.

[0015] In this unblocking device, the high-speed reverse impact of nitrogen gas can quickly and effectively disperse and discharge accumulated ash, significantly shortening the unblocking time. Compared to the traditional manual ventilation and ash discharge method, it can promptly restore the normal ash discharge function of the ash discharge pipeline, ensuring the continuous and stable operation of the gas tank system. Furthermore, the connection between the nitrogen pipeline and the ash discharge pipeline adopts an oblique interface design, which allows the nitrogen gas to generate a more complex vortex after entering the ash discharge pipeline, further enhancing the flushing effect on the accumulated ash and improving the unblocking efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a blockage-clearing device for a gas box ash discharge pipe disclosed in this application.

[0017] Explanation of reference numerals in the attached diagram: 1-Gas box, 2-Ash discharge pipe, 21-Flow meter, 22-Indicator light, 3-Nitrogen pipe, 31-Nitrogen backflushing valve. Detailed Implementation

[0018] In the relevant settings of the gas box, due to the high alkali metal content in the ash discharge pipe, coupled with the particulate matter carried by the gas flow staying in the lower part of the box for a long time, it is very easy to cause ash accumulation and caking in the lower part of the gas box, resulting in blockage. This prevents normal ash discharge and conveying, requiring shutdown for cleaning and unblocking, causing unplanned shutdown of the blast furnace and partial shutdown of continuous production, increasing labor costs and reducing production efficiency.

[0019] Therefore, this application proposes a device for clearing blockages in the ash discharge pipe of a gas tank. To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the various embodiments of this application will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been presented in the various embodiments of this application to enable readers to better understand this application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in this application can be achieved.

[0020] In the following description, certain specific details are set forth for the purpose of illustrating various disclosed embodiments in order to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the art will recognize that embodiments may be practiced without one or more of these specific details. In other instances, well-known apparatuses, structures, and techniques associated with this application may not have been shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0021] Unless the context requires otherwise, throughout the specification and claims, the word “comprising” and its variations, such as “including” and “having”, shall be understood to have an open, inclusive meaning, that is, to be interpreted as “including, but not limited to”.

[0022] The embodiments of this application will be described in detail below with reference to the accompanying drawings to provide a clearer understanding of the purpose, features, and advantages of this application. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of this application, but are merely for illustrating the essential spirit of the technical solution of this application.

[0023] Throughout this specification, references to "an embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Therefore, the appearance of "in an embodiment" or "an embodiment" in various places throughout the specification does not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic may be combined in any manner in one or more embodiments.

[0024] Specifically, in one embodiment, such as Figure 1 As shown, this application proposes a device for unclogging the ash discharge pipe 2 of a gas tank 1, comprising:

[0025] A gas tank 1 is provided, with an ash discharge pipe 2 connected to its upper part. A nitrogen pipe 3 is installed on the ash discharge pipe 2, and a nitrogen backflushing valve 31 is installed on the nitrogen pipe 3. The nitrogen pipe 3 is connected to an external nitrogen source.

[0026] During operation, when ash accumulates and becomes clogged at the bottom of the gas tank 1, workers can open the nitrogen backflushing valve 31 to allow nitrogen to flow from the nitrogen pipeline 3 into the ash discharge pipeline 2. Due to the high-speed flow and impact of the nitrogen, a strong reverse thrust is generated against the ash slag clogging the gas tank 1, thus dispersing the clogged ash slag and discharging it into the ash discharge pipeline 2, achieving the unclogging function. After unclogging is complete, the nitrogen backflushing valve 31 is closed, and the ash discharge pipeline 2 can resume normal ash discharge and conveying operations.

[0027] Furthermore, the connection between the nitrogen pipeline 3 and the ash discharge pipeline 2 adopts an oblique interface design, which allows the nitrogen to generate a more complex vortex after entering the ash discharge pipeline 2, further enhancing the flushing effect on the ash caking and improving the unblocking efficiency.

[0028] The high-speed reverse impact of nitrogen gas can quickly and effectively disperse and discharge accumulated ash, significantly shortening the unblocking time. Compared to traditional manual shutdown and ash removal methods, efficiency is increased several times, enabling timely restoration of the normal ash discharge function of the ash discharge pipe 2 and ensuring the continuous and stable operation of the gas box 1 system. Simultaneously, it avoids the cumbersome operation of manually entering the gas box 1 for ash removal and unblocking, reducing personnel working time in harsh environments, lowering labor intensity and safety risks, and saving significant labor costs. Unblocking can be performed without shutting down the blast furnace, effectively reducing the number of unplanned blast furnace shutdowns and partial system downtime caused by ash discharge pipe 2 blockage, improving the overall operating rate and production efficiency of the production system, which is of great significance for the company's continuous production.

[0029] The unblocking device adopts a nitrogen pipeline 3 and a nitrogen backflushing valve 31. It has a simple structure and is easy to install. It requires little modification to the existing gas tank 1 and ash discharge pipeline 2 system, and is easy to promote and apply on gas tank 1 equipment of different sizes and types.

[0030] According to a preferred embodiment, the nitrogen pipeline 3 is provided with an installation interface that matches the nitrogen backflushing valve 31, and the installation interface is a flange. The sealing gasket can be a nitrogen-resistant and pressure-resistant gasket, such as a graphite gasket or a specially made rubber gasket. For the specific operation of placing the sealing gasket between the flanges, please refer to the general setup; this application does not impose any limitations on this.

[0031] According to a preferred embodiment, the ash discharge pipe 2 is further equipped with a flow meter 21 for monitoring the flow rate of ash and slag in the ash discharge pipe 2. The flow meter 21 is installed on the straight section of the ash discharge pipe 2, away from interference sources such as valves, to ensure measurement accuracy. The flow meter 21 can be selected according to the diameter and flow range of the ash discharge pipe 2, such as an electromagnetic flow meter or an ultrasonic flow meter. The flow meter 21 is connected to the ash discharge pipe 2 by flange, thread, or welding, and the sensor is inserted into the pipe to detect the flow rate of ash and slag.

[0032] Furthermore, the flow meter 21 is also connected to an indicator light 22. The flow meter 21 is set to activate the indicator light 22 when the flow rate exceeds a preset metering level, alerting the operator that a nitrogen backflushing operation can be performed. The combination of the flow meter 21 and the indicator light 22 enables intelligent monitoring and management of the flow rate in the ash discharge pipeline 2, reducing the workload and frequency of manual inspections and improving the scientific rigor and accuracy of management.

[0033] The ash discharge pipe 2 is connected to the housing at an angle, allowing the ash to flow more easily towards the pipe opening under gravity. The specific angle of inclination is determined based on the actual site and housing structure, preferably closer to the vertical side, thus maximizing space utilization compared to a horizontal arrangement. In other embodiments, a vibration device can be added to the ash discharge pipe 2. Periodic or continuous vibration causes the ash to jump or shake within the pipe, preventing deposition and caking, thus achieving a similar ash discharge promotion effect as an inclined pipe. However, this increases equipment complexity and maintenance workload, and is therefore only an alternative.

[0034] According to a preferred embodiment, the number of ash discharge pipes 2 is greater than or equal to one, and each ash discharge pipe 2 is equipped with a nitrogen pipe 3. Multiple ash discharge pipes 2 operate simultaneously, greatly increasing the coverage and efficiency of the unblocking operation. When one ash discharge pipe 2 becomes blocked, the other pipes can continue to operate, ensuring a certain ash discharge capacity. Simultaneously, the nitrogen backflushing valve 31 quickly clears the blockage, reducing system downtime and improving production efficiency.

[0035] In one specific embodiment, the number of ash discharge pipes 2 is 3, and each ash discharge pipe 2 is evenly distributed at a certain distance, that is, the interval angle between each ash discharge pipe 2 is 120°.

[0036] By comprehensively ensuring unblocking efficiency and installation costs, and by maintaining equal spacing, optimal ash unloading effect is achieved. Each ash unloading pipe 2 is equipped with a nitrogen pipe 3 and a nitrogen backflushing valve 31, and their installation and connection methods are the same as described above. The setting of multiple ash unloading pipes 2 increases the redundancy of the system. Even if one or two pipes fail, the remaining pipes can still maintain basic ash unloading functions, ensuring the normal operation of the gas tank 1, reducing the risk of the entire system shutting down due to a single point of failure, and improving the reliability and stability of the entire production system.

[0037] The above provides a detailed description of a blockage-clearing device for an ash discharge pipe in a gas tank, as provided in the embodiments of this application. The various embodiments are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple; relevant parts can be referred to in the method section. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

[0038] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

Claims

1. A device for unclogging a gas box ash discharge pipe, characterized in that, include: Gas box body; An ash discharge pipe is connected to the gas box body, and a nitrogen pipe is also provided on the ash discharge pipe; A nitrogen backflush valve is provided on the nitrogen pipeline; The connection between the nitrogen pipeline and the ash discharge pipeline is set with an oblique interface.

2. The unblocking device for the ash discharge pipe of the gas box according to claim 1, characterized in that, The nitrogen pipeline is provided with an installation interface that matches the nitrogen backflushing valve, and the installation interface is a flange.

3. The unblocking device for the ash discharge pipe of the gas box according to claim 2, characterized in that, The ash discharge pipe is also equipped with a flow meter.

4. The unblocking device for the ash discharge pipe of the gas box according to claim 3, characterized in that, The flow meter is also connected to an indicator light. The flow meter is set to activate the indicator light to emit a bright light when the flow rate exceeds a preset metering level.

5. The unblocking device for the ash discharge pipe of the gas box according to claim 1, characterized in that, The ash unloading pipe is connected to the gas box at an angle.

6. The unblocking device for the ash discharge pipe of the gas box according to claim 5, characterized in that, The ash unloading pipe is located near the vertical side.

7. The unblocking device for the ash discharge pipe of the gas box according to claim 6, characterized in that, The number of ash unloading pipes is greater than or equal to 1, and each of the ash unloading pipes is equipped with a nitrogen pipe.

8. The unblocking device for the ash discharge pipe of the gas box according to claim 7, characterized in that, The number of ash discharge pipes is 3, and the angles and distances of each ash discharge pipe are evenly distributed.

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