Ash removal device for batching station pipelines

Abstract

This application discloses a dust removal device for a batching station pipeline, comprising a horizontally arranged pipeline body, with multiple pulse jets arranged along its length on the upper part of the pipeline body, each pulse jet being connected to a gas supply pipe for supplying pressurized gas to the pulse jets; multiple vertically arranged ash discharge pipes are connected to the bottom surface of the pipeline body, and a dust storage chamber for collecting settled dust is provided below the ash discharge pipes; pressurized gas is sprayed into the pipeline body through the pulse jets to impact the dust deposited in the pipeline body, preventing the deposited dust from clogging the pipeline, avoiding dust accumulation in the pipeline, reducing the cross-sectional area of ​​the pipeline for transporting dust, which is beneficial to improving the smoothness of dust transportation in the pipeline, thereby improving the dust transportation efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline dust removal technology, specifically relating to a dust removal device for a batching station pipeline. Background Technology

[0002] The raw materials for calcium carbide production are mainly lime powder (CaO) and carbon materials (coke / anthracite powder). The dust generated during the crushing, conveying and batching of these materials is combustible dust. The function of the dust collection pipeline is to suck up and transport the dust to prevent it from accumulating in the workshop and reaching explosive concentrations.

[0003] Dust collection ducts, especially horizontal ones, are prone to dust settling and accumulation. For example, the dust particles carried in flue gas have a wide range of sizes, and larger particles (e.g., >110μm) tend to settle to the bottom of the dust collection duct under gravity during horizontal transport, forming ash. As the operating time increases, the ash accumulates and thickens, resulting in a reduction in the effective flow cross-sectional area of ​​the dust collection duct, an increase in system resistance, and a decrease in negative pressure stability. Ultimately, this leads to a decrease in dust transport efficiency, an increase in energy consumption, and may even affect the normal production of the enterprise.

[0004] In addition, traditional dust removal solutions mainly rely on manual timed dust removal, such as by opening dust removal holes in the pipes and having workers clean them regularly. This method is not only inefficient and labor-intensive, but also incomplete in dust removal. In addition, dust is easily released during the dust removal process, causing secondary pollution and safety risks. Utility Model Content

[0005] This application proposes a dust removal device for batching station pipelines, which can clean the accumulated dust in the pipelines by blowing the pipelines with pulsed airflow, replacing the inefficient and dangerous manual dust removal method and improving the dust conveying efficiency in the pipelines.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A batching station pipeline ash removal device includes a horizontally arranged pipeline body, with multiple pulse nozzles arranged along its length on the upper part of the pipeline body. Each of the multiple pulse nozzles is connected to an air supply pipe for supplying pressurized gas to the pulse nozzles. Multiple vertically arranged ash discharge pipes are connected to the bottom surface of the pipeline body, and an ash storage chamber for collecting settled ash is provided below the ash discharge pipes.

[0007] In one embodiment of this application, a one-way valve is installed at the outlet of the pulse nozzle.

[0008] In one embodiment of this application, the pulse nozzle is fixedly connected to the outer wall of the pipe body via a fixed bracket.

[0009] In one embodiment of this application, a flap is provided on the upper part of the ash discharge pipe, and the flap is connected to the motor drive of the outer wall of the ash discharge pipe.

[0010] In one embodiment of this application, an ash discharge valve is provided at the lower outlet of the ash storage chamber.

[0011] In one embodiment of this application, a flow meter for detecting the flow rate of dust transported within the pipe body is provided inside the pipe body.

[0012] In one embodiment of this application, a support frame for supporting and fixing the pipe body is provided on the outer side of the pipe body.

[0013] In summary, the technical solution proposed in this application has the following beneficial technical effects: This application uses a pulse nozzle to spray pressurized gas into the pipeline body to impact the dust deposited in the pipeline body, preventing the deposited dust from clogging the pipeline, avoiding dust deposition in the pipeline, reducing the cross-sectional area of ​​the pipeline for transporting dust, which is beneficial to improving the smoothness of dust transportation in the pipeline, thereby improving the dust transportation efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of a batching station pipeline ash removal device provided in an embodiment of this application; Figure 2 This is a schematic diagram of the cross-sectional structure of the pipeline body of the ash removal device for the batching station pipeline provided in an embodiment of this application; Figure 3 This is a schematic diagram of the cross-sectional structure of the ash discharge pipe of the batching station pipeline ash removal device provided in an embodiment of this application; Figure 4 This is a three-dimensional structural diagram of a batching station pipeline ash removal device provided in an embodiment of this application.

[0016] In the diagram: Pipe body 1; Pulse nozzle 2, one-way valve 21, fixed bracket 22; Gas pipeline 3; Ash discharge pipe 4, flap 41, motor 411; Ash storage chamber 5, ash discharge valve 51; Support frame 7. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0018] It should be noted that in the description of this application, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0019] In this application, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of these terms in this application based on the specific circumstances.

[0020] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0021] This embodiment provides a batching station pipeline ash removal device, see reference. Figures 1-4 As shown, the system includes a horizontally arranged pipe body 1, with multiple pulse nozzles 2 arranged along its length on the upper part of the pipe body 1. Each of the multiple pulse nozzles 2 is connected to a gas supply pipe 3, which is used to supply pressurized gas to the pulse nozzles 2. The bottom surface of the pipe body 1 is connected to multiple vertically arranged ash discharge pipes 4, and a ash storage chamber 5 for collecting settled ash is arranged below the ash discharge pipes 4.

[0022] In the above embodiment, the pipeline body 1 is arranged horizontally, and multiple pulse nozzles 2 are arranged above the pipeline body 1. Each pulse nozzle 2 is connected to a gas supply pipe 3. The gas supply pipe 3 is used to supply pressurized gas to the pulse nozzle 2, and the pulse nozzle 2 is used to spray pulsed gas into the pipeline body 1. Multiple vertically arranged ash discharge pipes 4 are connected to the bottom surface of the pipeline body 1. The settled dust in the pipeline body 1 can fall into the ash storage chamber 5 through the ash discharge pipes 4 for collection. If dust is deposited in the horizontal pipeline due to its own gravity, pressurized gas can be sprayed into the pipeline body 1 by the pulse nozzles 2 to impact the dust deposited in the pipeline body 1, prevent the deposited dust from clogging the pipeline, avoid dust deposition in the pipeline, reduce the cross-sectional area of ​​the pipeline for transporting dust, and improve the smoothness of dust transport in the pipeline. At the same time, it reduces the frequency of pipeline cleaning and maintenance and reduces the workload of the staff.

[0023] In one embodiment of this application, see reference Figure 2 As shown, a one-way valve 21 is installed at the outlet of the pulse nozzle 2.

[0024] In the above embodiment, a one-way valve 21, such as a diaphragm or piston type one-way valve 21, is installed at the outlet of the pulse nozzle 2. When the air pressure of the air supply pipe 3 is greater than the air pressure inside the pipe, the pressure opens the one-way valve 21, and high-pressure gas is injected into the pipe. When the pulse ends and the air pressure disappears, the one-way valve 21 closes under the negative pressure of the pipe or the action of its own spring, which tightly isolates the inside and outside of the pipe and prevents dust-laden gas from flowing back into the pulse nozzle 2 and the air supply pipe 3 during non-purge periods, thus avoiding the pulse nozzle 2 or the air supply pipe 3 from being blocked by dust.

[0025] In one embodiment of this application, see [reference] Figure 2 As shown, the pulse nozzle 2 is fixedly connected to the outer wall of the pipe body 1 through a fixed bracket 22.

[0026] In the above embodiments, the fixed bracket 22 is usually installed in the form of support rod welding to firmly install the pulse nozzle 2 on the outer wall of the pipe body 1, so as to prevent the pulse nozzle 2 from loosening, falling off or breaking due to the vibration caused by the airflow impact, thereby improving the stability of the pulse nozzle 2 installation.

[0027] In one embodiment of this application, see reference Figure 3 As shown, a flap 41 is provided on the upper part of the ash discharge pipe 4, and the flap 41 is connected to the motor 411 on the outer wall of the ash discharge pipe 4.

[0028] In the above embodiment, the middle part of the flap 41 is connected to the motor 411 on the outer wall of the ash discharge pipe 4. That is, the motor 411 controls the flap 41 to rotate inside the ash discharge pipe 4. When the ash discharge pipe 4 is closed, the flap 41 is in a horizontal position, and when the ash discharge pipe 4 is open, it remains vertical. In actual use, the dust raised after the pulse nozzle 2 completes the blowing is carried away by the airflow in the pipe, and the motor 411 starts to drive the flap 41 to rotate to a vertical position. At this time, the coarser particles that were disturbed during the blowing process but failed to be carried away by the airflow in the pipe fall into the ash storage chamber 5 below through the ash discharge pipe 4 under the action of gravity. When not discharging ash, the flap 41 is in a horizontal position, so that the ash discharge pipe 4 is in a closed state.

[0029] In one embodiment of this application, see reference Figure 3 As shown, an ash discharge valve 51 is provided at the lower outlet of the ash storage chamber 5.

[0030] In the above embodiments, the ash discharge valve 51, such as a star-shaped unloader, is installed at the bottom outlet of the ash storage chamber 5 to discharge the ash from the ash storage chamber 5. This avoids dust flying caused by manually opening the cover to discharge ash, simplifies the ash discharge process of the ash storage chamber 5, and reduces the labor intensity and health risks of workers.

[0031] In one embodiment of this application, a flow meter for detecting the flow rate of dust transported inside the pipe body 1 is provided.

[0032] In the above embodiments, by installing a solid particulate matter flow meter (e.g., an ultrasonic flow meter that indirectly calculates concentration and flow rate by measuring the change in the propagation speed of sound waves in dusty gas) inside the pipe or in a specific pipe section, the dust transport status in the pipe can be monitored in real time. When the dust transport flow rate is detected to be continuously lower than the set threshold, the staff can determine that a blockage has occurred in the pipe, which facilitates timely clearing of the blockage.

[0033] In one embodiment of this application, see reference Figure 4 As shown, a support frame 7 for supporting and fixing the pipe body 1 is provided on the outside of the pipe body 1.

[0034] In the above embodiments, the support frame 7 is usually welded from structural steel (such as channel steel and angle steel) to form a sturdy truss structure, which supports the pipe body 1 in sections. The support frame 7 can effectively increase the rigidity of the pipe, prevent the pipe from easily deflecting under negative pressure and its own weight, which could lead to sealing failure at the pipe connection and cracking of the weld, and avoid pressure loss and dust emission caused by pipe leakage.

[0035] In actual use of this application: The main pipeline 1 is erected above the belt conveyor of the batching station. The pipeline is made of carbon steel. Above the pipeline, a pulse nozzle 2 is installed at fixed intervals along its length. Each pulse nozzle 2 is welded to the outer wall of the pipeline via a fixed bracket 22, and its outlet extends into the pipeline interior, with a one-way valve 21 installed at the outlet. All pulse nozzles 2 are connected in parallel via an air supply pipe 3, which is connected to the plant's compressed air network. A pulse solenoid valve and control unit are installed on the air supply pipe 3.

[0036] Below the pipeline, a vertically installed ash discharge pipe 4 is welded. Inside the upper port of each ash discharge pipe 4, a flap 41 driven by a small motor 411 is installed, and below the ash discharge pipe 4, an ash storage chamber 5 is connected, and a star-shaped unloader, i.e., an ash discharge valve 51, is installed at the bottom outlet of each ash storage chamber 5.

[0037] A solid mass flow meter is installed inside the pipeline to monitor the amount of dust transported in the pipeline in real time.

[0038] The pipeline body 1 is supported by a support frame 7 made of channel steel and is firmly connected to the steel structure platform of the plant.

[0039] Regular or on-demand pulse purging effectively prevents dust from accumulating in horizontal sections, ensuring a constant pipeline cross-sectional area and stable dust transport.

[0040] In addition, the dust collected in the ash storage chamber 5 can be centrally returned to the batching system, reducing raw material waste and lowering production costs.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A batching station pipeline ash removal device, characterized in that, The system includes a horizontally arranged pipe body (1), with multiple pulse nozzles (2) arranged above the pipe body (1) along its length. Each of the multiple pulse nozzles (2) is connected to a gas supply pipe (3), which is used to supply pressurized gas to the pulse nozzles (2). The bottom surface of the pipe body (1) is connected to multiple vertically arranged ash discharge pipes (4), and a ash storage chamber (5) for collecting settled ash is arranged below the ash discharge pipes (4).

2. The ash removal device for the batching station pipeline according to claim 1, characterized in that, A one-way valve (21) is installed at the outlet of the pulse nozzle (2).

3. The ash removal device for the batching station pipeline according to claim 1, characterized in that, The pulse nozzle (2) is fixedly connected to the outer wall of the pipe body (1) via a fixed bracket (22).

4. The ash removal device for the batching station pipeline according to claim 1, characterized in that, The upper part of the ash discharge pipe (4) is provided with a flap (41), and the flap (41) is connected to the motor (411) on the outer wall of the ash discharge pipe (4).

5. The ash removal device for the batching station pipeline according to claim 1, characterized in that, An ash discharge valve (51) is provided at the lower outlet of the ash storage chamber (5).

6. The ash removal device for the batching station pipeline according to claim 1, characterized in that, The pipeline body (1) is equipped with a flow meter for detecting the flow rate of dust transported inside the pipeline.

7. The batching station pipeline ash removal device according to any one of claims 1-6, characterized in that, The outer side of the pipe body (1) is provided with a support frame (7) for supporting and fixing the pipe body (1).

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