Dry dust removal system

Abstract

The utility model relates to a dry dust removal system, including big ash bin, dust removal cylinder, ash delivery pipeline, blowing pipeline and drainage structure, blowing pipeline, dust removal cylinder and big ash bin pass through the ash delivery pipeline in proper order, drainage structure includes tee joint and drain valve, the three-way connector is communicated with an ash conveying pipeline located between the large ash bin and the dust removal barrel, the three-way connector is provided with a first connector and a second connector which are connected into the ash conveying pipeline and sequentially distributed in the gas flow direction, and the three-way connector is further provided with a third connector capable of being communicated with the drain valve. And the second interface can be opened and closed. The dry dedusting system provided by the utility model solves the problems of low efficiency and high cost of a method for removing accumulated water in the dedusting cylinder and the ash conveying pipeline in the existing dry dedusting equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of dry dust removal equipment, and in particular to a dry dust removal system. Background Technology

[0002] Before the gas is put into operation, the dust collector cylinder and ash conveying pipeline are at room temperature, and condensation often accumulates. If the gas is put into operation, the gas dust will become damp and caking in the initial stage, affecting the normal ash unloading and conveying of the system. Sometimes, in order to drain the water accumulated in the system, it is necessary to manually disassemble and restore the ash conveying pipeline, which is time-consuming, labor-intensive and material-intensive. Utility Model Content

[0003] The main purpose of this invention is to propose a dry dust removal system, which aims to solve the problems of low efficiency and high cost of existing dry dust removal equipment for removing water accumulation in the dust collector cylinder and ash conveying pipeline.

[0004] To achieve the above objectives, this utility model proposes a dry dust removal system, comprising a large ash silo, a dust collector cylinder, an ash conveying pipe, an air blowing pipe, and a drainage structure. The air blowing pipe, the dust collector cylinder, and the large ash silo are sequentially connected through the ash conveying pipe. The drainage structure includes a T-joint and a drain valve. The T-joint is connected to the ash conveying pipe located between the large ash silo and the dust collector cylinder. The T-joint has a first interface and a second interface that connect to the ash conveying pipe and are sequentially arranged along the gas flow direction. The T-joint also has a third interface that can connect to the drain valve. The second interface is openable and closable.

[0005] According to some embodiments of this utility model, the third interface of the tee connector is arranged in a horizontal direction.

[0006] According to some embodiments of the present invention, a baffle is also included, which is movably disposed at the connection between the third interface and the drain valve and blocks the third interface.

[0007] According to some embodiments of the present invention, a first pneumatic ball valve is also included, which is connected to the second interface of the three-way connector.

[0008] According to some embodiments of the present invention, a nitrogen storage tank is also included, and the nitrogen storage tank and the blowing pipe are connected by a pressure regulating valve.

[0009] According to some embodiments of this utility model, a nitrogen filter is connected between the gas storage tank and the gas pressure regulator.

[0010] According to some embodiments of the present invention, the air blowing pipe is provided with a check valve to prevent dust from flowing back on the ash conveying pipe, and the check valve is located on the side of the air pressure regulating valve facing away from the air storage tank.

[0011] According to some embodiments of the present invention, multiple dust collector cylinders are provided, and each dust collector cylinder is connected to the large ash silo through the ash conveying pipe.

[0012] According to some embodiments of this utility model, the ash conveying pipe is arranged in a ring, and each of the dust collector cylinders is connected in sequence through the ash conveying pipe. The connection between the air blowing pipe and the ash conveying pipe is located between two of the dust collector cylinders. Two gas flow paths for the air blowing pipe to output gas are formed on the ash conveying pipe. The two sections of the ash conveying pipe between the large ash silo and the two adjacent dust collector cylinders are respectively connected to the three-way connector.

[0013] According to some embodiments of the present invention, a second pneumatic ball valve is respectively provided on the ash conveying pipe facing the two adjacent dust collector cylinders at the connection point.

[0014] This utility model has at least the following beneficial effects:

[0015] In this invention, when the second port of the three-way connector is closed, the condensate in the dust collector cylinder is first discharged into the ash conveying pipe under its own gravity, where it converges with the condensate in the ash conveying pipe and flows together through the first and third ports of the three-way connector and is discharged from the drain valve. At this time, a small amount of water remains in the ash conveying pipe. Nitrogen gas is blown into the ash conveying pipe through the air blowing pipe. Since the second port of the three-way connector is closed, the water remaining in the ash conveying pipe flows through the first and third ports under the drive of nitrogen gas and is discharged from the drain valve, thereby quickly removing all the condensate in the dust collector cylinder and the ash conveying pipe. Then, the second port is opened, the drain valve is closed, the dust collector cylinder begins dust removal and discharges dust into the ash conveying pipe. Air is blown into the ash conveying pipe through the air blowing pipe, and the dust in the ash conveying pipe is input into the large ash silo under the drive of gas, thus completing the ash conveying operation. This invention connects the tee joint and the drain valve within the ash conveying pipe to drain most of the accumulated water in the ash conveying pipe and the dust collector cylinder. By closing the second interface, it prevents the accumulated water from entering the large ash silo under nitrogen drive. This allows the air blowing pipe originally used for ash conveying operations to be reused. Nitrogen is output to drain the residual water in the ash conveying pipe without disassembling the ash conveying pipe. This solves the problem of low efficiency and high cost of existing dry dust removal methods for removing accumulated water in the dust collector cylinder and ash conveying pipe. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of a dry dust removal system provided in an embodiment of this utility model;

[0018] Figure 2 for Figure 1 A top view showing the connection between the dust collector cylinder and the large ash silo.

[0019] Figure 3 for Figure 2 A magnified view of part A in the diagram;

[0020] Figure 4 for Figure 1 A front view of the connection between the dust collector cylinder and the large ash silo.

[0021] Figure 5 for Figure 4 A magnified view of part B in the diagram;

[0022] Figure 6 for Figure 1 A schematic diagram showing the connection between the air blowing pipe and the ash conveying pipe.

[0023] Explanation of reference numerals in the attached figures:

[0024] 100-Dry dust removal system; 1-Large ash silo; 2-Dust collector cylinder; 3-Ash conveying pipe; 31-Second pneumatic ball valve; 4-Air blowing pipe; 41-Air pressure regulating valve; 42-Nitrogen filter; 43-Check valve; 5-Drainage structure; 51-T-connector; 511-First interface; 512-Second interface; 513-Third interface; 52-Drain valve; 6-Baffle; 7-First pneumatic ball valve; 8-Air storage tank. Detailed Implementation

[0025] The technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0027] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] This invention provides a dry dust removal system. Figures 1 to 5 This invention provides a specific embodiment of a dry dust removal system.

[0029] like Figures 1 to 4 As shown, this utility model embodiment provides a dry dust removal system 100, including a large ash silo 1, a dust collector cylinder 2, an ash conveying pipe 3, an air blowing pipe 4, and a drainage structure 5. The air blowing pipe 4, the dust collector cylinder 2, and the large ash silo 1 are connected sequentially through the ash conveying pipe 3. The drainage structure 5 includes a three-way connector 51 and a drain valve 52. The three-way connector 51 is connected to the ash conveying pipe 3 located between the large ash silo 1 and the dust collector cylinder 2. The three-way connector 51 has a first interface 511 and a second interface 512 that are connected to the ash conveying pipe 3 and are arranged sequentially along the gas flow direction. The three-way connector 51 also has a third interface 513 that can be connected to the drain valve 52. The second interface 512 is openable and closable.

[0030] In this invention, when the second port 512 of the three-way connector 51 is closed, the condensate in the dust collector cylinder 2 is first discharged into the ash conveying pipe 3 under its own gravity, where it converges with the condensate in the ash conveying pipe 3 and flows together through the first port 511 and the third port 513 of the three-way connector 51 and is discharged from the drain valve 52. At this time, a small amount of water remains in the ash conveying pipe 3. Nitrogen gas is then blown into the ash conveying pipe 3 through the air blowing pipe 4. Since the second port 512 of the three-way connector 51 is closed, the ash conveying pipe... The residual water inside the dust collector 2 flows through the first interface 511 and the third interface 513 under nitrogen drive and is discharged from the drain valve 52, thereby quickly removing all condensate water from the dust collector 2 and the ash conveying pipe 3. Then, the second interface 512 is opened and the drain valve 52 is closed. The dust collector 2 begins dust removal and discharges the dust into the ash conveying pipe 3. Air is blown into the ash conveying pipe 3 through the air blowing pipe 4. The dust in the ash conveying pipe 3 is input into the large ash silo 1 under gas drive, thereby completing the ash conveying operation. This invention connects the tee joint 51 and the drain valve 52 within the ash conveying pipe 3 to drain most of the accumulated water in the ash conveying pipe 3 and the dust collector cylinder 2. By closing the second interface 512, it prevents the accumulated water from entering the large ash silo 1 under nitrogen drive. This allows the air blowing pipe 4, originally used for ash conveying operations, to be reused. Nitrogen is output to drain the residual water in the ash conveying pipe 3 without disassembling the ash conveying pipe 3. This solves the problem of low efficiency and high cost of existing dry dust removal methods for removing accumulated water in the dust collector cylinder 2 and ash conveying pipe 3.

[0031] It should be noted that, since the top of the large ash silo 1 is sealed and the large ash silo 1 is used to store dust, there is no condensation water inside the large ash silo 1. In order to prevent the water in the ash conveying pipe 3 from entering the large ash silo 1 under the drive of nitrogen, the second interface 512 needs to be closed.

[0032] Specifically, the specific structure for implementing the opening and closing of the second interface 512 is not limited; for example, in some embodiments, such as... Figure 2 and Figure 3 As shown, the dry dust removal system 100 also includes a first pneumatic ball valve 7, which is connected to the second port 512 of the three-way connector 51. This configuration allows the first pneumatic ball valve 7 to be closed when drainage operations are required, thereby closing the second port 512 and preventing water accumulation in the ash conveying pipe 3 from entering the large ash silo 1 under nitrogen-driven conditions.

[0033] To prevent dust from clogging the drain valve 52 during the ash conveying process, in some embodiments, such as Figure 3 and Figure 4As shown, the third port 513 of the tee connector 51 is oriented horizontally. This arrangement prevents a large amount of dust from entering through the third port 513 and clogging the drain valve 52 under its own gravity during the ash conveying process.

[0034] Furthermore, in some embodiments, such as Figure 3 and Figure 4 As shown, the dry dust removal system 100 also includes a baffle 6, which is movably disposed at the connection between the third interface 513 and the drain valve 52 and blocks the third interface 513. With this configuration, before ash conveying operations, blocking the third interface 513 with the baffle 6 completely prevents dust from entering the drain valve 52.

[0035] To achieve regulation of the output nitrogen flow rate, in some embodiments, such as Figure 6 As shown, the dry dust removal system 100 also includes a nitrogen storage tank 8, which is connected to the air blowing pipe 4 via a pressure regulating valve 41. This configuration, by pre-storing nitrogen in the storage tank 8, allows for rapid and timely supply of nitrogen to the air blowing pipe 4, improving drainage efficiency. Furthermore, it eliminates the influence of external air sources on air pressure when the air blowing pipe 4 receives nitrogen, facilitating the pressure regulating valve 41 to adjust the output nitrogen pressure and thus regulate the output nitrogen flow rate.

[0036] Since the air tank 8 may accumulate a small amount of dust after prolonged use, in some embodiments, to prevent dust from entering the air pressure regulating valve 41 and causing blockage, such as... Figure 6 As shown, a nitrogen filter 42 connects the gas storage tank 8 and the pressure regulator. This arrangement filters dust from the nitrogen output from the gas storage tank 8 through the nitrogen filter 42, preventing dust from clogging the pressure regulator valve 41 and affecting its pressure regulation effect.

[0037] Furthermore, in some embodiments, such as Figure 6 As shown, the air blowing pipe 4 is equipped with a check valve 43 to prevent dust from flowing back from the ash conveying pipe 3. The check valve 43 is located on the side of the air pressure regulating valve 41 facing away from the air storage tank 8. This arrangement prevents dust from flowing back from the ash conveying pipe 3 into the air blowing pipe 4 during ash conveying operations, thus avoiding blockage of the air pressure regulating valve 41.

[0038] In some embodiments, such as Figure 1As shown, multiple dust collector cylinders 2 are provided, and each dust collector cylinder 2 is connected to the large ash silo 1 through the ash conveying pipe 3. With this configuration, the ash output from each dust collector cylinder 2 can be transported to the large ash silo 1 through the ash conveying pipe 3, eliminating the need for multiple dust storage points and reducing production costs.

[0039] When the number of dust collector cylinders 2 is excessive, the length of the ash conveying pipe 3 becomes too long, making it difficult to drive the accumulated water in the ash conveying pipe 3 into the drain valve 52. Therefore, in some embodiments, such as Figure 1 As shown, the ash conveying pipe 3 is arranged in a ring, and each of the dust collector cylinders 2 is connected sequentially through the ash conveying pipe 3. The connection point between the air blowing pipe 4 and the ash conveying pipe 3 is located between two of the dust collector cylinders 2. Two gas flow paths for the air blowing pipe 4 are formed on the ash conveying pipe 3. The two sections of the ash conveying pipe 3 between the large ash silo 1 and the two adjacent dust collector cylinders 2 are respectively connected to the three-way connectors 51. In this arrangement, the multiple dust collector cylinders 2 are divided into two rows, and the air blowing pipe 4 blows air into the ash conveying pipe 3 connecting the two rows of dust collector cylinders 2, avoiding the problem that the length of the ash conveying pipe 3 is too long, making it difficult to drive the water accumulated in the ash conveying pipe 3 into the drain valve 52.

[0040] Furthermore, in some embodiments, such as Figure 1 As shown, the connecting section is provided with a second pneumatic ball valve 3 on each of the ash conveying pipes 3 facing the two adjacent dust collector cylinders 2. With this configuration, the gas output from the blowing pipe 4 forms two gas flow paths within the ash conveying pipe 3. By opening one of the second pneumatic ball valves 31 and closing the other, nitrogen gas flows only within the corresponding gas flow path. When all the water accumulated in the corresponding gas flow path is discharged, one of the second pneumatic ball valves 31 is closed and the other is opened, allowing nitrogen gas to flow in the other gas flow path to discharge the water accumulated in that path.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dry dust removal system, characterized in that, The system includes a large ash silo, a dust collector cylinder, an ash conveying pipe, an air blowing pipe, and a drainage structure. The air blowing pipe, the dust collector cylinder, and the large ash silo are connected sequentially through the ash conveying pipe. The drainage structure includes a T-joint and a drain valve. The T-joint is connected to the ash conveying pipe located between the large ash silo and the dust collector cylinder. The T-joint has a first interface and a second interface that are connected to the ash conveying pipe and are sequentially arranged along the gas flow direction. The T-joint also has a third interface that can be connected to the drain valve. The second interface is openable and closable.

2. The dry dust removal system as described in claim 1, characterized in that, The third interface of the tee connector is oriented horizontally.

3. The dry dust removal system as described in claim 1, characterized in that, It also includes a baffle, which is movably disposed at the connection between the third interface and the drain valve and blocks the third interface.

4. The dry dust removal system as described in claim 1, characterized in that, It also includes a first pneumatic ball valve, which is connected to the second interface of the three-way connector.

5. The dry dust removal system as described in claim 1, characterized in that, It also includes a gas storage tank for storing nitrogen, and the gas storage tank and the gas blowing pipe are connected by a pressure regulating valve.

6. The dry dust removal system as described in claim 5, characterized in that, A nitrogen filter is connected between the gas storage tank and the gas pressure regulator.

7. The dry dust removal system as described in claim 5, characterized in that, The air blowing pipe is equipped with a check valve to prevent backflow of dust from the ash conveying pipe. The check valve is located on the side of the air pressure regulating valve facing away from the air storage tank.

8. The dry dust removal system as described in claim 1, characterized in that, The dust collector cylinder is provided in multiple ways, and each dust collector cylinder is connected to the large ash silo through the ash conveying pipe.

9. The dry dust removal system as described in claim 8, characterized in that, The ash conveying pipe is arranged in a ring, and each of the dust collector cylinders is connected in sequence through the ash conveying pipe. The connection between the air blowing pipe and the ash conveying pipe is located between two of the dust collector cylinders. Two gas flow paths for the air blowing pipe to output gas are formed on the ash conveying pipe. The two sections of the ash conveying pipe between the large ash silo and the two adjacent dust collector cylinders are respectively connected to the three-way connector.

10. The dry dust removal system as described in claim 9, characterized in that, The connecting section is equipped with a second pneumatic ball valve on the ash conveying pipe facing the two adjacent dust collector cylinders.

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