Ash conveying pipeline
By introducing a water storage tank and a motor drive system into the ash conveying pipeline, the problems of ash conveying pipeline blockage and heat energy waste were solved, and efficient dust discharge and heat energy recovery and utilization were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG YUDEAN BOHE COAL POWER CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-17
AI Technical Summary
Existing ash conveying pipelines are prone to blockage at bends, affecting the normal discharge of ash. Furthermore, the discharge of ash generates a large amount of heat, resulting in energy loss.
A dust conveying pipeline with a water storage tank, motor, fan blades and water turbine blades was designed. The water storage tank absorbs the heat of the dust for heat recovery, and the motor and spherical bearing drive the dust movement to avoid blockage and improve the dust discharge speed and heat utilization efficiency.
It effectively avoids clogging of ash conveying pipelines, reduces energy consumption, and improves dust discharge speed and heat recovery efficiency.
Smart Images

Figure CN224132241U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ash conveying pipeline technology, specifically to an ash conveying pipeline. Background Technology
[0002] In the daily production process of thermal power plants, the fly ash generated from coal combustion is mainly collected by electrostatic precipitators, bag filters, etc., and then transported to dry ash silos through pneumatic ash conveying systems for comprehensive utilization.
[0003] In existing ash conveying pipelines, dust often gets stuck at the bends, causing blockages and affecting normal dust discharge. Furthermore, the discharge of dust generates significant heat, and directly expelling the dust results in energy loss and reduces the overall effectiveness of the system. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides an ash conveying pipe to solve the technical problems that dust often gets stuck at the bends of the ash conveying pipe, thus clogging the pipe and affecting the normal discharge of dust. At the same time, the dust generates a lot of heat when it is discharged, and directly discharging the dust can easily cause energy loss and reduce the overall performance of the device.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: an ash conveying pipe, comprising: an L-shaped pipe and inlet / outlet pipes, wherein the inlet / outlet pipes are connected to both ends of the L-shaped pipe, a water storage tank is provided in the inner cavity of the L-shaped pipe, and an ash discharge mechanism is assembled at the bottom of the L-shaped pipe, wherein the ash discharge mechanism includes a motor, wherein a fan blade and a water turbine blade are respectively connected to the upper and lower ends of the output shaft of the motor, and a disc is sleeved on the outside of the output end of the motor, wherein both sides of the disc are connected to drain pipes, and the ends of the two drain pipes that are far apart are respectively connected to the two sides of the water storage tank.
[0008] Preferably, the inlet and outlet pipes are fitted with flanges and valves. The flanges facilitate communication between the inlet and outlet pipes and external pipelines, and the valves control the opening and closing of the inlet and outlet pipes.
[0009] Preferably, the upper and lower ends of the water storage tank are connected to valve pipes, and the valve pipes are equipped with torsion wheels. The valve pipes can discharge water into or out of the inner cavity of the water storage tank.
[0010] Preferably, a baffle is slidably connected to the top of the inner cavity of the L-shaped tube. The baffle has slots on both the left and right sides. A pull rod is mounted on the top of the baffle. A spring is connected between the pull rod and the L-shaped tube. The baffle can be sleeved on the outside of the fan blades. By rotating the fan blades, the airflow is increased to improve the entry and exit of airflow, thereby increasing the driving speed of dust.
[0011] Preferably, a conical block is fitted on the top of the motor's output shaft. The top of the conical block has a rounded corner design, which can prevent dust from accumulating on the top of the motor's output end.
[0012] Preferably, the output shaft of the motor is uniformly fitted with spherical bearings, and the four sets of spherical bearings are respectively connected to the disc and the L-shaped tube. The spherical bearings can support the output shaft of the motor and improve the stability of the motor transmission.
[0013] (III) Beneficial Effects
[0014] Compared with the prior art, the present invention provides an ash conveying pipeline, which has the following beneficial effects:
[0015] This ash conveying pipeline, through the addition of a water storage tank, places the water source within the interlayer of the L-shaped pipe. By absorbing the heat from the dust, it heats the water source, thereby recovering heat energy and reducing energy consumption. Through the addition of a motor and spherical bearings, when dust accumulates at the bends inside the L-shaped pipe, it automatically drives the dust to move, preventing the dust from clogging the L-shaped pipe and reducing the dust discharge speed. At the same time, through the addition of water impellers, discs, and drain pipes, when the motor drives the dust movement, it automatically drives the water storage tank to circulate the water source inside, thereby improving the uniformity of water heating and thus increasing the water heating speed. Attached Figure Description
[0016] Figure 1 This is a front view of the present utility model;
[0017] Figure 2 This is a plan view of the present invention;
[0018] Figure 3 This is a partial sectional view of the present invention;
[0019] Figure 4 This is an external schematic diagram of the ash removal mechanism of this utility model.
[0020] In the diagram: 1. L-shaped pipe; 11. Inlet / outlet pipe; 12. Valve; 13. Valve pipe; 14. Pull rod; 15. Spring; 16. Baffle plate; 2. Water storage tank; 3. Ash discharge mechanism; 31. Motor; 32. Fan blade; 33. Water turbine blade; 34. Disc; 35. Drain pipe; 36. Spherical bearing; 37. Conical block. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] This utility model provides a technical solution, please refer to Figure 1 and Figure 2 An ash conveying pipeline includes an L-shaped pipe 1 and inlet / outlet pipes 11. The inlet / outlet pipes 11 are connected to both ends of the L-shaped pipe 1. A water storage tank 2 is provided in the inner cavity of the L-shaped pipe 1. An ash discharge mechanism 3 is installed at the bottom of the L-shaped pipe 1. The ash discharge mechanism 3 includes a motor 31. The upper and lower ends of the output shaft of the motor 31 are respectively connected to a fan blade 32 and a water turbine blade 33. A disc 34 is sleeved on the outside of the output end of the motor 31. Drainage pipes 35 are connected to both sides of the disc 34. The ends of the two drainage pipes 35 that are far apart are respectively connected to both sides of the water storage tank 2. The shape of the water storage tank 2 is the same as that of the L-shaped pipe 1. A square groove is provided at the bottom of the water storage tank 2. The square groove cuts off the water storage tank 2. The disc 34 and the drainage pipes 35 are installed at the position of the square groove. The water storage tank 2 is reconnected by the cooperation of the disc 34 and the drainage pipes 35.
[0023] L-shaped pipe 1 allows dust to flow. The inner cavity of L-shaped pipe 1 is made of a metal material with excellent thermal conductivity, which can improve the heat transfer speed and effect of the water source in the inner cavity of water storage tank 2. Inlet and outlet pipes 11 can connect L-shaped pipe 1 to the external ash discharge pipe. Motor 31 is connected to the bottom of L-shaped pipe 1 through a bracket. Motor 31 can drive water turbine blade 33 and fan blade 32. The fan blade 32 rotates to generate airflow and improves the dust discharge speed by impact. The fan blade 32 is set in the middle of the inner cavity of L-shaped pipe 1 to prevent the dust at the bottom of the inner cavity of L-shaped pipe 1 from being affected by the fan blade 32 for discharge. Water turbine blade 33, together with disc 34 and drain pipe 35, improves the flow speed of water source.
[0024] Please see Figure 3 and Figure 4 The inlet and outlet pipes 11 are fitted with flanges, and valves 12 are installed on the outside of the inlet and outlet pipes 11. The flanges facilitate the connection between the inlet and outlet pipes 11 and external pipes. The valves 12 can control the opening and closing of the inlet and outlet pipes 11. The upper and lower ends of the water storage tank 2 are connected to valve pipes 13. The valve pipes 13 are equipped with torsion wheels. The valve pipes 13 can discharge water into or out of the inner cavity of the water storage tank 2.
[0025] A baffle 16 is slidably connected to the top of the inner cavity of the L-shaped tube 1. The baffle 16 has slots on both the left and right sides. A pull rod 14 is mounted on the top of the baffle 16. A spring 15 is connected between the pull rod 14 and the L-shaped tube 1. The baffle 16 can be sleeved on the outside of the fan blade 32. The rotation of the fan blade 32 increases the airflow in and out, thereby increasing the driving speed of dust.
[0026] A tapered block 37 is mounted on the top of the output shaft of motor 31. The top of the tapered block 37 is designed with rounded corners. The tapered block 37 can prevent dust from accumulating on the top of the output end of motor 31. Spherical bearings 36 are evenly sleeved on the outside of the output shaft of motor 31. Four sets of spherical bearings 36 are connected to the disc 34 and the L-shaped tube 1 respectively. The spherical bearings 36 can support the output shaft of motor 31 and improve the stability of motor 31 transmission.
[0027] This solution connects the inlet / outlet pipe 11 to the dust outlet, allowing external water to be poured into the inner cavity of the water storage tank 2 through the valve pipe 13. The valve 12 is opened to allow external dust to enter the inner cavity of the L-shaped pipe 1 and be discharged through the L-shaped pipe 1. As the dust flows, the inner cavity of the L-shaped pipe 1 absorbs the heat of the dust and acts on the water source in the inner cavity of the water storage tank 2, heating the water source. The motor 31 is started to drive the fan blade 32 to rotate, which stirs the dust in the inner cavity of the L-shaped pipe 1, preventing the dust from clogging the bend of the L-shaped pipe 1. At the same time, the motor 31 drives the water wheel blade 33 to rotate, which, together with the disc 34 and the drain pipe 35, drives the water source inside the water storage tank 2 to circulate and improve the heating speed of the water source.
[0028] The added water storage tank 2 places the water source in the interlayer of the L-shaped pipe 1. By absorbing the heat from the dust, the water source is heated, thereby recovering heat energy and reducing energy consumption. The added motor 31 and spherical bearing 36 automatically drive the dust to move when the inner bend of the L-shaped pipe 1 is blocked by dust, preventing the dust from blocking the L-shaped pipe 1 and reducing the dust discharge speed. At the same time, the added water impeller 33, disc 34 and drain pipe 35, when the motor 31 drives the dust to move, automatically drive the water storage tank 2 to hold the water source inside and circulate it, thereby improving the uniformity of water heating and thus increasing the water heating speed.
[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0030] 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 fly ash duct, comprising: The L-shaped pipe (1) and the inlet and outlet pipes (11) are connected to both ends of the L-shaped pipe (1). The L-shaped pipe (1) has a water storage tank (2) in its inner cavity and a ash discharge mechanism (3) at the bottom of the L-shaped pipe (1). The ash discharge mechanism (3) includes a motor (31). The upper and lower ends of the output shaft of the motor (31) are respectively connected to a fan blade (32) and a water turbine blade (33). A disc (34) is sleeved on the outside of the output end of the motor (31). Both sides of the disc (34) are connected to drain pipes (35). The ends of the two drain pipes (35) that are far apart are respectively connected to both sides of the water storage tank (2).
2. A flue duct according to claim 1, characterised in that: The inlet and outlet pipes (11) are fitted with flanges, and valves (12) are mounted on the outside of the inlet and outlet pipes (11).
3. A flue duct according to claim 1, characterised in that: The upper and lower ends of the water storage tank (2) are connected to valve pipes (13), and the valve pipes (13) are equipped with torsion wheels.
4. A flue duct according to claim 1, characterised in that: A baffle (16) is slidably connected to the top of the inner cavity of the L-shaped tube (1). The baffle (16) has slots on both the left and right sides. A pull rod (14) is mounted on the top of the baffle (16). A spring (15) is connected between the pull rod (14) and the L-shaped tube (1).
5. A flue duct according to claim 1, characterised in that: The top of the output shaft of the motor (31) is fitted with a conical block (37), the top of which is designed with rounded corners.
6. The ash conveying pipeline according to claim 1, characterized in that: The output shaft of the motor (31) is uniformly fitted with spherical bearings (36), and the four sets of spherical bearings (36) are respectively connected to the disc (34) and the L-shaped tube (1).