Tube-type electric precipitator

Abstract

The utility model discloses a tubular electric tar precipitator relates to industrial waste gas treatment equipment technical field, it includes casing, inlet pipe, sedimentation pipe subassembly, corona pole, sedimentation pipe subassembly contains a plurality of sedimentation pipes, still includes upper head, lower head, airflow equalizer, tar collection tank, drain pipe, heating jacket and sealing door, and the gas that waits for processing enters casing through inlet pipe, is evenly distributed to each sedimentation pipe by airflow equalizer, under the electric field effect that corona pole generates, and tar is adsorbed in the inner wall of sedimentation pipe, and then is collected to tar collection tank, and heating jacket prevents tar solidification, and is discharged through drain pipe, the utility model discloses has improved tar trapping efficiency and equipment stability, and the practicality is strong, is suitable for industry popularization.

Description

Technical Field

[0001] This utility model relates to the technical field of industrial waste gas treatment equipment, specifically a tubular electrostatic precipitator for tar removal. Background Technology

[0002] Tubular electrostatic precipitators are key equipment for treating tar-containing waste gas in industrial production. They use a high-voltage electric field to ionize the gas, thereby separating impurities such as tar from the gas. They are widely used in industries such as coking and coal gasification.

[0003] However, existing tubular electrostatic precipitators for tar removal suffer from numerous problems during actual operation. Firstly, after the gas to be treated enters the equipment, the airflow distribution within the casing is uneven, resulting in excessively high airflow velocities in some precipitation tubes, leading to insufficient tar collection, while the airflow velocities in other precipitation tubes are too slow, resulting in low equipment processing efficiency. Secondly, the collected tar easily solidifies at low temperatures, frequently clogging the drainage components, affecting the normal operation of the equipment, and increasing maintenance costs and downtime. Furthermore, the connection structure of some internal components is not rationally designed, making them susceptible to vibration and other factors during long-term operation, causing positional shifts and further reducing the tar collection effect.

[0004] Therefore, a tubular electrostatic precipitator is needed to solve the above problems, improve tar collection efficiency, and ensure stable equipment operation. Utility Model Content

[0005] The purpose of this invention is to provide a tubular electrostatic precipitator for tar collection, which solves the problems of uneven airflow distribution, easy solidification of tar clogging the drainage components, and easy vibration affecting the position of some components in the prior art, thereby improving the tar collection efficiency and ensuring stable and reliable operation of the equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A tubular electrostatic precipitator for tar removal, comprising:

[0008] The shell, as the main load-bearing structure of the equipment, provides space for the installation and operation of all components of the electrostatic precipitator. Its interior forms a relatively closed treatment environment to ensure that the gas can be fully treated within it.

[0009] The air inlet pipe is used to introduce the tar-containing gas to be treated and connects it to the housing. After the gas to be treated enters the housing through the air inlet pipe, the tar collection and treatment process begins.

[0010] The precipitation tube assembly is located inside the housing and is used to cooperate with the electrostatic tar removal function. It is the main place for tar to be captured. The gas to be treated interacts with the electric field generated by the corona electrode in the precipitation tube assembly, and the tar particles are adsorbed on the precipitation tube assembly.

[0011] The corona electrode, inserted inside the precipitation tube assembly, is used to generate corona discharge to ionize the gas and capture tar. Under the action of a high-voltage power supply, a strong electric field is generated around the corona electrode, causing the gas to ionize and creating conditions for tar particles to become charged and be adsorbed.

[0012] Furthermore, the precipitation tube assembly includes several precipitation tubes, which are tubular structures distributed along the inner cavity of the shell. This distribution fully utilizes the internal space of the shell, increasing the processing capacity of the equipment. The corona electrode penetrates the cavity of the precipitation tube, enabling an independent electric field region to be formed within each precipitation tube, ensuring the efficient execution of the tar collection process.

[0013] Furthermore, the tubular electrostatic precipitator also includes an upper end cap and a lower end cap, which respectively seal the openings at both ends of the settling tube, together forming a closed processing space within the settling tube. The upper and lower end caps prevent gas leakage from both ends of the settling tube during processing, ensuring that the gas to be treated can fully interact with the electric field within the settling tube, and also facilitate the control of parameters such as gas pressure within the settling tube.

[0014] Furthermore, an airflow distributor is provided inside the housing, located upstream of the air inlet of the sedimentation tube assembly. This distributor ensures a uniform distribution of the airflow entering the sedimentation tubes, preventing some sedimentation tubes from becoming overloaded and others from having low utilization rates due to uneven airflow. The airflow distributor is arranged corresponding to the inlets of the sedimentation tubes, precisely guiding the airflow to each sedimentation tube, further guaranteeing the uniformity of airflow within each tube.

[0015] Furthermore, a tar collection tank is provided below the lower end cap to collect the tar falling from the settling tube. During the tar collection process, the tar adsorbed on the inner wall of the settling tube gradually accumulates and flows downward under gravity, converging at the lower end cap and entering the tar collection tank. A drain pipe is connected to the bottom of the tar collection tank to discharge the collected tar, ensuring that the collected tar is promptly removed from the equipment and preventing excessive accumulation in the collection tank.

[0016] Furthermore, a heating jacket is fitted around the outside of the tar collection tank. The heating jacket has a jacketed structure and can be filled with a heating medium, such as hot water or steam. The heating jacket is used to heat and keep the tar in the tar collection tank at a constant temperature, preventing the tar from solidifying due to temperature drop, thus avoiding blockage of the drain pipe and ensuring smooth tar discharge.

[0017] Furthermore, the housing is equipped with a sealing door for opening and closing the inner cavity of the housing. When the equipment needs to be inspected, maintained, or internal components replaced, opening the sealing door allows for convenient operation inside the housing; when the equipment is running, the sealing door is closed to ensure the airtightness of the housing and prevent gas leakage.

[0018] Furthermore, the drain pipe is connected to the bottom of the shell and is used to discharge the tar collected by the tar collection tank into the shell. Its pipe opening structure is adapted to the tar discharge requirements. For example, the pipe opening can be set as a funnel shape to facilitate the smooth flow of tar and also to facilitate connection with external conveying pipelines.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This invention, through the design of a tubular electrostatic precipitator for tar, achieves the following effects: 1. By incorporating an inlet pipe, the tar-containing gas to be treated can be stably introduced, ensuring a continuous gas supply and providing a stable source of raw materials for subsequent tar collection and processing; 2. The precipitation tube assembly employs a structure with several precipitation tubes distributed along the inner cavity of the shell, and the corona electrode penetrates the cavity of the precipitation tube, increasing the area and space for tar collection and improving the processing capacity of the equipment; 3. The upper and lower end caps together form a closed processing space for the precipitation tube, ensuring sufficient gas treatment within the tube, reducing gas leakage, and improving tar collection efficiency; 4. The airflow distributor effectively solves the problem of uneven airflow distribution. 5. The uniform airflow entering each settling tube ensures that each settling tube functions effectively, improving the overall processing efficiency of the equipment; 6. The tar collection tank effectively collects tar falling from the settling tubes, while the drain pipe promptly discharges the tar, preventing tar accumulation inside the equipment; 7. The heating jacket heats and insulates the tar in the collection tank, preventing tar from solidifying and clogging the drain pipe, ensuring stable operation of the equipment and reducing maintenance frequency and costs; 8. The sealed door facilitates equipment inspection and maintenance, improving maintainability and extending the equipment's service life; 9. The drain pipe connects to the bottom of the shell, and its port structure is adapted to tar discharge requirements, ensuring smooth tar discharge from the shell and further guaranteeing the normal operation of the equipment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the main structure of this utility model.

[0024] In the diagram: 1. Shell; 2. Inlet pipe; 3. Sedimentation tube assembly; 4. Corona electrode; 31. Sedimentation tube; 5. Upper end cap; 6. Lower end cap; 7. Airflow distributor; 8. Tar collection tank; 9. Drain pipe; 10. Heating jacket; 11. Sealing door. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are provided. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0027] Example 1

[0028] Please see Figure 1 This embodiment provides a tubular electrostatic precipitator for tar removal, including a housing 1, an air inlet pipe 2, a sedimentation tube assembly 3, and a corona electrode 4.

[0029] Example 2

[0030] Please see Figure 1 Based on Embodiment 1, this embodiment further defines the housing 1 as the main load-bearing structure of the equipment, providing an installation foundation and operating space for other components. The air inlet pipe 2 is used to introduce the tar-containing gas to be treated. One end of the pipe is connected to an external gas source, and the other end is connected to the inside of the housing 1, which can stably deliver the gas to be treated into the interior of the housing 1.

[0031] Example 3

[0032] Please see Figure 2 This embodiment, based on embodiment 1, further specifies that the sedimentation tube assembly 3 is disposed within the housing 1 to cooperate with the electrostatic tar removal function. The sedimentation tube assembly 3 includes several sedimentation tubes 31, which are tubular structures and are evenly distributed along the inner cavity of the housing 1. This distribution method can make full use of the internal space of the housing 1 and improve the processing efficiency of the equipment.

[0033] Example 4

[0034] Please see Figure 2In this embodiment, based on embodiment 1, the corona electrode 4 is further specified to be inserted into the precipitation tube assembly 3. Specifically, the corona electrode 4 is inserted through the cavity of the precipitation tube 31, and one corona electrode 4 is correspondingly provided in each precipitation tube 31. The corona electrode 4 is connected to a high-voltage power supply, and under the action of high voltage, corona discharge is generated, which ionizes the gas entering the precipitation tube 31, and the tar particles are charged and adsorbed into the precipitation tube.

[0035] Example 5

[0036] Please see Figure 2 Based on Example 1, this embodiment further specifies that the tubular electrostatic precipitator also includes an upper end cap 5 and a lower end cap 6. The upper end cap 5 and the lower end cap 6 respectively seal the openings at both ends of the settling tube 31, together forming a closed processing space of the settling tube 31, preventing gas from leaking from both ends of the settling tube 31 during the processing, and ensuring that the gas to be treated fully interacts with the electric field in the settling tube 31.

[0037] Example 6

[0038] Please see Figure 2 Based on Embodiment 1, this embodiment further specifies that the housing 1 is equipped with an airflow distributor 7. The airflow distributor 7 is located upstream of the inlet of the sedimentation tube assembly 3 and is arranged corresponding to the inlet of the sedimentation tube 31. After the gas to be treated enters the housing 1 through the inlet pipe 2, it first passes through the airflow distributor 7. The airflow distributor 7 can make the airflow distribution of each sedimentation tube 31 uniform, avoiding the situation where some sedimentation tubes 31 have excessive processing load and others have low utilization rate due to uneven airflow.

[0039] Example 7

[0040] Please see Figure 2 and Figure 3 Based on Embodiment 1, this embodiment further specifies that a tar collection tank 8 is provided below the lower end cap 6. The tar adsorbed on the inner wall of the sedimentation tube 31 gradually flows downward under the action of gravity, and after being collected by the lower end cap 6, it enters the tar collection tank 8, realizing the centralized collection of tar. The bottom of the tar collection tank 8 is connected to a drain pipe 9, which is connected to the bottom of the shell 1, so that the tar collected in the tar collection tank 8 can be discharged from the shell 1. Its pipe opening structure is adapted to the tar discharge requirements to ensure smooth discharge of tar.

[0041] Example 8

[0042] Please see Figure 2 Based on Embodiment 1, this embodiment further specifies that a heating jacket 10 is fitted around the outside of the tar collection tank 8. The heating jacket 10 has a jacket structure and can be filled with heating media such as steam. During the tar collection process, the heating jacket 10 heats and keeps the tar in the tar collection tank 8 at a constant temperature, so that the tar always remains in a liquid state and prevents it from solidifying due to temperature drop, thus avoiding blockage of the drain pipe 9.

[0043] Example 9

[0044] Please see Figure 1 Based on Embodiment 1, this embodiment further specifies that the housing 1 is provided with a sealing door 11. When the equipment needs to be inspected, maintained or internal components replaced, the sealing door 11 can be opened to facilitate operation inside the housing 1. When the equipment is running, the sealing door 11 is closed to ensure the airtightness of the housing 1 and prevent gas leakage.

[0045] The working process of this utility model is as follows: When using this tubular electrostatic precipitator for tar removal, the tar-containing gas to be treated enters the housing 1 through the inlet pipe 2 and first flows through the airflow distributor 7. The airflow distributor 7 divides the gas, allowing it to enter the individual precipitation tubes 31 in the precipitation tube assembly 3 evenly. The gas entering the precipitation tubes 31 is ionized under the action of the high-voltage electric field generated by the corona electrode 4. The tar particles, after being charged, are adsorbed onto the inner wall of the precipitation tubes 31, achieving the separation of tar and gas. The purified gas continues to flow within the precipitation tubes 31 and is eventually discharged from the equipment. Meanwhile, the tar on the inner wall of the precipitation tubes 31 gradually slides down under the action of gravity, collects through the lower end cap 6, and enters the tar collection tank 8. The heating jacket 10 on the outside of the tar collection tank 8 continuously operates to heat and keep the collected tar warm, preventing it from solidifying. When a certain amount of tar is collected, the valve on the drain pipe 9 is opened, and the tar can be smoothly discharged from the shell 1. During the operation of the equipment, the upper end cap 5 and the lower end cap 6 ensure that a closed processing space is formed inside the sedimentation pipe 31, while the sealing door 11 is opened when the equipment needs to be inspected or maintained, making it convenient for staff to operate.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tubular electrostatic precipitator for tar removal, characterized in that, include: The shell (1) serves as the main load-bearing structure of the equipment; The air inlet pipe (2) is used to introduce the tar-containing gas to be treated and is connected to the housing (1); The precipitation tube assembly (3) is disposed inside the housing (1) and is used to cooperate with the electrostatic tar removal function. The corona electrode (4) is inserted inside the precipitation tube assembly (3) and is used to generate corona discharge to ionize the gas and capture the tar.

2. The tubular electrostatic precipitator for tar removal according to claim 1, characterized in that: The precipitation tube assembly (3) includes a plurality of precipitation tubes (31), the precipitation tubes (31) are tubular structures distributed along the inner cavity of the shell (1), and the corona electrode (4) is disposed through the cavity of the precipitation tubes (31).

3. A tubular electrostatic precipitator for tar removal according to claim 2, characterized in that: It also includes an upper end cap (5) and a lower end cap (6), which respectively seal the openings at both ends of the sedimentation tube (31) to form a closed processing space for the sedimentation tube (31).

4. A tubular electrostatic precipitator for tar removal according to claim 3, characterized in that: The housing (1) is provided with an airflow equalizer (7), which is located on the upstream side of the inlet of the sedimentation tube assembly (3) and is used to make the airflow distribution in the sedimentation tube (31) uniform. The airflow equalizer (7) is arranged corresponding to the inlet of the sedimentation tube (31).

5. A tubular electrostatic precipitator for tar removal according to claim 3, characterized in that: A tar collection tank (8) is provided below the lower end cap (6) for collecting tar falling from the sedimentation pipe (31). The bottom of the tar collection tank (8) is connected to a drain pipe (9) for discharging the collected tar.

6. A tubular electrostatic precipitator for tar removal according to claim 5, characterized in that: A heating sleeve (10) is provided on the outside of the tar collection tank (8). The heating sleeve (10) is a jacket structure and a heating medium can be introduced into it to heat and keep the tar in the tar collection tank (8) warm, so as to prevent the tar from solidifying.

7. A tubular electrostatic precipitator for tar removal according to claim 1, characterized in that: The housing (1) is provided with a sealing door (11) for opening and closing the inner cavity of the housing (1) to facilitate equipment inspection and maintenance.

8. A tubular electrostatic precipitator for tar removal according to claim 5, characterized in that: The drain pipe (9) is connected to the bottom of the shell (1). The drain pipe (9) is used to discharge the tar collected by the tar collection tank (8) into the shell (1). Its pipe opening structure is adapted to the tar discharge requirements.

Images