Water unblocking method and system for screw ship unloader conveying pipe

Abstract

The application discloses a spiral ship unloader conveying pipe water unblocking method and system, comprising the following steps: selecting a preset water injection soaking time according to the blockage length of the conveying pipe body; controlling the hydraulic oil cylinder to adjust the conveying pipe body from a horizontal state to an inclined state; starting the water pump to inject water into the conveying pipe body; monitoring the water level by using a water level monitor, and closing the water pump when the water injection amount reaches the water level monitor; after the soaking time is reached, restoring the conveying pipe body to the horizontal state; starting the ship unloader, judging the dredging effect, and if the dredging effect is not good, repeating steps 2-5; the application has the beneficial effects that the coal blockage position is fully soaked by the regular soaking, the coal viscosity and hardness are reduced, the dredging efficiency is significantly improved, the unblocking efficiency is improved by combining the manual operation with the machine, and the unblocking reliability is improved.

Description

Technical Field

[0001] This invention relates to the field of unclogging conveying pipes, and in particular to a method and system for unclogging water conveying pipes of a screw unloader. Background Technology

[0002] During the operation of a screw unloader, coal blockage frequently occurs in the conveying pipe due to factors such as the moisture content, particle size, and stickiness of bulk cargoes like coal. Traditional unblocking methods are often ineffective and may damage the conveying pipe. Furthermore, the unblocking process is time-consuming, severely impacting unloading efficiency.

[0003] In existing technologies, clearing blockages from the delivery pipe can cause some damage to the pipe and takes a long time. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is that the conveying pipe will be damaged to a certain extent when clearing blockages, and the clearing time is relatively long.

[0005] The above-mentioned technical problems are solved by the following technical solution: This invention proposes a method for clearing blockages in the water delivery pipe of a spiral unloader, which includes...

[0006] Select the preset water immersion time based on the blockage length of the delivery pipe body;

[0007] The hydraulic cylinder is controlled to adjust the delivery pipe body from a horizontal state to an inclined state;

[0008] Start the water pump to inject water into the delivery pipe;

[0009] The water level is monitored using a water level monitor, and the water pump is turned off when the water volume reaches the water level monitor.

[0010] After the soaking time is reached, return the delivery pipe to a horizontal position;

[0011] Start the unloader and assess the dredging effect. If the blockage is not cleared, repeat steps 2 through 5.

[0012] Furthermore, this invention also proposes a water clearing system for the conveying pipe of a spiral unloader, comprising a conveying pipe body with a conveying component inside; a water injection unit, including at least one water injection pipe arranged circumferentially along the outer side of the conveying pipe body, wherein at least two nozzles are distributed axially along the water injection pipe, and the nozzles face inward toward the interior of the conveying pipe body; a hydraulic cylinder for adjusting the inclination of the conveying pipe body; a water level monitor disposed on the conveying pipe body; and a control module for controlling the water injection unit, the water level monitor, and the hydraulic cylinder.

[0013] In a preferred embodiment of the water unblocking system for the conveying pipe of the spiral unloader of the present invention: an observation port is provided on the conveying pipe body, and the observation port is sealed by a flange plate.

[0014] In a preferred embodiment of the water unblocking system for the conveying pipe of the spiral unloader of the present invention: the conveying component is an auger, which is driven by the motor of the unloader.

[0015] In a preferred embodiment of the water unblocking system for the conveying pipe of the screw unloader of the present invention: the edge of the blade on the screw conveyor is in contact with the inner wall of the conveying pipe body.

[0016] In a preferred embodiment of the water unblocking system for the conveying pipe of the spiral unloader of the present invention: at least one mounting cylinder is provided on the outer ring of the conveying pipe body along the axial direction, and the mounting cylinder is connected to the conveying pipe body.

[0017] In a preferred embodiment of the water clearing system for the conveying pipe of the spiral unloader of the present invention: a plug cylinder is threadedly connected to the mounting cylinder, and one end of the plug cylinder smoothly transitions to the inner wall of the conveying pipe body.

[0018] In a preferred embodiment of the water unblocking system for the conveying pipe of the spiral unloader of the present invention: the water level monitor is threadedly installed in the mounting cylinder.

[0019] In a preferred embodiment of the water unblocking system for the conveying pipe of the spiral unloader described in this invention: the nozzle is coated with a hydrophobic coating on the surface inside the conveying pipe body.

[0020] In a preferred embodiment of the water unblocking system for the conveying pipe of the spiral unloader of the present invention: one end of the hydraulic cylinder is hinged to the conveying pipe body, and the other end of the hydraulic cylinder is hinged to the unloader.

[0021] The beneficial effects of this invention are as follows: by soaking the coal blockage area at regular intervals, the coal's stickiness and hardness are reduced, significantly improving the unblocking efficiency. Furthermore, by combining manual and mechanical methods, the efficiency and reliability of unblocking are improved. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Wherein:

[0023] Figure 1 A flowchart illustrating the water unblocking method for the delivery pipe of a screw unloader is shown.

[0024] Figure 2A schematic diagram of the first state structure of the water clearing system for the screw unloader's delivery pipe is shown.

[0025] Figure 3 A cross-sectional view of the first phase of the water clearing system for the screw unloader's delivery pipe is shown.

[0026] Figure 4 A schematic diagram of the second state structure of the water clearing system for the screw unloader's delivery pipe is shown.

[0027] Figure 5 A cross-sectional view of the second phase of the water unblocking system for the screw unloader's delivery pipe is shown. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0029] The terminology used in this invention is that which is currently widely used in the art in consideration of the function of the invention; however, these terms may vary according to the intent of those skilled in the art, precedent, or new technology in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the invention. Therefore, the terms used in this specification should not be construed as simple names, but rather based on their meanings and the overall description of the invention.

[0030] Example 1

[0031] Reference Figure 1 This is the first embodiment of the invention, which provides a method for clearing blockages in the water delivery pipe of a screw unloader, comprising:

[0032] S1: Select the preset water immersion time based on the blockage length of the conveying pipe body 1;

[0033] When a blockage is detected in the conveying pipe body 1, the blockage usually occurs at the end. The length of the blockage in the conveying pipe body 1 can then be determined through the observation port or the multiple mounting cylinders 12. At this time, a length indicator strip can be set on the outside of the conveying pipe body 1. For example, an indicator line can be set at 10%, 30%, 50% or other positions of the total length of the conveying pipe body 1 from the end of the conveying pipe, so that the staff can quickly observe the length of the blockage.

[0034] The specific types of blockages are:

[0035] Mild blockage: The length of the blocked coal is less than or equal to 10% of the total length of the conveying pipe body 1;

[0036] Moderate blockage: The length of the blocked coal is greater than 10% of the total length of the conveying pipe body 1 and less than or equal to 30% of the total length of the conveying pipe body 1;

[0037] Severe blockage: The length of the blocked coal is greater than 30% of the total length of the conveying pipe body 1.

[0038] After confirming the length of the blockage through the installation cylinder 12 or the observation port, the plug cylinder 13 in the installation cylinder 12 at the inlet end of the conveying pipe body 1 needs to be removed first, and the water level monitor 4 needs to be installed into the installation cylinder 12.

[0039] The water immersion time is also divided into three levels: 30 minutes, one hour, and two hours. These three levels correspond to light blockage, moderate blockage, and severe blockage, respectively. This can shorten the time as much as possible while ensuring that the blockage can be cleared, which can improve the working efficiency of the ship unloader to a certain extent.

[0040] S2: Control the hydraulic cylinder 3 to adjust the conveying pipe body 1 from a horizontal state to an inclined state;

[0041] After determining the degree of blockage, hydraulic cylinder 3 is installed at the end of the conveying pipe body 1, i.e. the blocked end. The hydraulic cylinder 3 is activated by the control module. The output end of hydraulic cylinder 3 is lifted to adjust the conveying pipe body 1 from a horizontal state to an inclined state. Since the two ends of the conveying pipe body 1 are misaligned with the other parts of the ship unloader, the conveying pipe body 1 is not affected when adjusting the inclined state.

[0042] When the conveying pipe body 1 is adjusted from horizontal to inclined, the blocked end of the conveying pipe body 1 tilts downward, resulting in a state where the blocked section is lower and the unblocked end is higher. At this time, water is injected into the water conveying pipe body 1 through the water injection component 2. Under the action of gravity, the water will flow towards the blocked position and continuously soak in the water, thus accelerating the soaking time.

[0043] The tilting angle varies depending on the three different degrees of coal blockage; the tilting angle increases as the degree of blockage increases.

[0044] When tilting the conveying pipe body 1, the control module controls the process. After determining the degree of blockage, the corresponding water clearing mode is activated. After activation, the control module controls the hydraulic cylinder to contract and lower the blocked end, so that the tilting angle is appropriate. After tilting, the control module automatically starts the water pump to inject water into the conveying pipe body 1 through the water injection component 2, and automatically stops water injection for soaking when the water level monitor 4 detects the water level.

[0045] S3: Start the water pump to inject water into the main body of the delivery pipe 1;

[0046] After determining the degree of blockage, the water pump is started to inject water into the delivery pipe body 1 through at least one water injection pipe 21 and nozzle 22 through the unblocked part. When the water level reaches the water level monitor 4, the water level monitor 4 will send a signal to the control module to automatically stop the water pump, thereby reducing the amount of manual work.

[0047] S4: Use water level monitor 4 to monitor the water level, and turn off the water pump when the water volume reaches the level monitor 4.

[0048] The water level monitor 4 is threaded into the installation cylinder 12. When installing, the plug cylinder 13 in the installation cylinder 12, which is far away from the blockage position, needs to be removed first. There will be some coal residue in the installation cylinder 12 near the inside of the conveying pipe body 1. When installing the water level monitor 4, it needs to be cleaned to prevent it from affecting the normal operation of the water level monitor 4.

[0049] The installation cylinder 12, which is far from the blockage location, is located at a certain distance from the end of the conveying pipe body 1 and is located near the bottom of the conveying pipe body 1. This allows the amount of water injected into the conveying pipe body 1 to reach its maximum. When water is injected into the inclined conveying pipe body 1, when the amount of water injected reaches the position of the water level monitoring 4, the water does not leak out from the conveying pipe body 1, and it also allows the conveying pipe body 1 to contain as much water as possible.

[0050] Here, by setting up the water level monitor 4, and through the interaction between the control module, the water pump, the time setting device required for the preset time, and the hydraulic cylinder, the manual intervention during blockage clearing can be greatly reduced. This avoids the situation where people need to constantly monitor the water level, and also avoids the situation where, when the inclination of the conveying pipe body 1 is large, manual detection is not possible, and the water pump can only be shut off when water overflows. This reduces the workload of workers, allowing them to do other preparatory work during blockage clearing, and also helps to improve the efficiency of the subsequent operation of the ship unloader, and enables more accurate and efficient blockage clearing.

[0051] S5: After the soaking time is reached, restore the delivery pipe body 1 to a horizontal state;

[0052] The soaking time can be set using an existing time setting device. This device is connected to the control module and can automatically set the corresponding soaking time after water is added, through the unclogging mode selected by S1, and issue an alarm when the time is up. This setting device is existing technology and will not be described in detail here.

[0053] This method eliminates the need for staff to set the time, thus avoiding potential errors in time setting or wasted time due to inaccurate time settings.

[0054] When the soaking time is up, the alarm of the time setting device will remind the operator that the time has been reached and will send a signal to the control module. After receiving the signal, the control module will control the hydraulic cylinder 3 to adjust the delivery pipe body 1 to a horizontal state.

[0055] S6: Start the unloader and check the dredging effect. If the dredging is not cleared, repeat steps 2 to 5.

[0056] After the conveying pipe body 1 becomes horizontal, the unloader is then started. At this time, the conveying component 11 inside the conveying pipe body 1 starts to operate. Based on the various parameters of the conveying component 11 and the existing blockage detection technology, it is determined whether there is still a blockage in the conveying pipe body 1. If there is no blockage, the device continues to operate. If there is a blockage, the unloader is stopped, and S2 to S5 are repeated until the blockage in the conveying pipe body 1 is cleared.

[0057] If the blockage has been cleared, the device continues to operate. At this time, the staff can remove the water level monitor 4 from the installation cylinder 12 while it is running, install the blockage cylinder 13 into the installation cylinder 12, and clean the water level monitor.

[0058] Furthermore, the water level monitor 4 can be removed and the plug 13 installed before starting the ship unloader. This step also prevents the water level monitor from being removed and cleaned again after starting the ship unloader if the blockage is not cleared. It also avoids the control module issuing incorrect commands due to receiving incorrect signals.

[0059] Example 2

[0060] Reference Figures 2-5 This is the second embodiment of the present invention, which is based on the first embodiment. This embodiment provides a method and system for clearing blockages in the water conveying pipe of a spiral unloader, which includes a conveying pipe body 1, and a conveying component 11 is provided inside the pipe.

[0061] Specifically, the conveyor 11 is an auger, which is driven by the motor of the unloader.

[0062] The coal conveying task can be successfully completed by the screw conveyor, but other conveying devices capable of conveying coal can also be used, and no restrictions are made here.

[0063] The water injection unit 2 includes at least one water injection pipe 21 arranged circumferentially along the outer side of the conveying pipe body 1, and at least two nozzles 22 distributed axially along the water injection pipe 21, with the nozzles 22 facing the interior of the conveying pipe body 1; a hydraulic cylinder 3 for adjusting the tilt of the conveying pipe body 1, specifically, one end of the hydraulic cylinder 3 is hinged to the conveying pipe body 1, and the other end of the hydraulic cylinder 3 is hinged to the unloader; a water level monitor 4 is installed on the conveying pipe body 1; and a control module for controlling the water injection unit 2, the water level monitor, and the hydraulic cylinder 3.

[0064] Multiple water injection pipes 21 and nozzles 22 can be configured to ensure that the appropriate amount of water is quickly injected into the delivery pipe body 1, reducing the waiting time due to water injection. The hydraulic cylinder 3 can meet the state changes of the delivery pipe body 1, ensuring that the blocked part is in a lower position. The immersion speed is accelerated by the gravity of the water. The water level monitor 4 can detect the amount of water injected into the delivery pipe body 1. Through the setting of the control module, most of the operation can be remotely and automatically controlled by the staff, greatly reducing the manual intervention, ensuring work efficiency, and improving the accuracy, safety and reliability of the unblocking process.

[0065] Example 3

[0066] Reference Figures 2-5 The first two embodiments of the invention differ from the first embodiment in that they also include an observation port provided on the conveying pipe body 1, which is sealed by a flange plate.

[0067] The observation port allows for easy identification of blockages in the conveying pipe body 1 when blockages occur. The flange plate sealing ensures the normal operation of the conveying pipe body 1. The mounting cylinder 12 serves as the observation port, while the plugging cylinder 13 serves as the flange plugging plate.

[0068] The observation port is relatively large. When the blockage of the conveying pipe body 1 is more severe than that of a severe blockage, it may be necessary to manually clear the coal blockage inside the conveying pipe body 1 through the observation port, providing another solution for clearing the blockage of the conveying pipe body 1.

[0069] Specifically, the blade edges on the auger are fitted against the inner wall of the conveying pipe body 1.

[0070] The edge of the auger fits against the inner wall of the conveying pipe body 1, which can prevent the water flow from having a large impact when the conveying pipe body 1 returns to a horizontal state after soaking.

[0071] Specifically, at least one mounting cylinder 12 is provided on the outer ring of the conveying pipe body 1 along the axial direction, and the mounting cylinder 12 is connected to the conveying pipe body 1.

[0072] Furthermore, a plug 13 is threadedly connected to the mounting cylinder 12, and one end of the plug 13 smoothly transitions to the inner wall of the conveying pipe body 1.

[0073] Furthermore, the water level monitor 4 is threadedly installed in the mounting sleeve 12.

[0074] According to the description in Embodiment 1, marking lines can be set at 10%, 20%, etc. on the self-conveying pipe body 1, and the mounting cylinder 12 can be set at the position of each marking line, which can also serve as a marker and allow workers to accurately observe the location of coal blockage.

[0075] The purpose of the plug 13 is to seal the installation cylinder 12 and prevent coal leakage. The end of the plug 13 located inside the conveying pipe body 1 smoothly transitions to the inner wall of the conveying pipe body 1. The end of the plug 13 is arc-shaped to match the curvature of the inner wall of the conveying pipe body 1, ensuring stability during the operation of the auger and preventing any impact on it. It also avoids the problem of coal residue accumulation.

[0076] When the water level monitor 4 is installed, the monitoring end located inside is flush with the inner wall to prevent water from entering the installation cylinder 12 and accumulating during water filling, which could cause errors in the water level monitor 4. If water is accidentally splashed onto the water level monitor 4 during water filling, it will fall off due to gravity and will not cause significant errors in the water level monitor 4. When the water filling volume reaches the water level monitor 4, the water level monitor 4 will continuously emit a signal, which proves that the water filling is complete.

[0077] Specifically, the surface of the nozzle 22 located inside the delivery pipe body 1 is coated with a hydrophobic coating.

[0078] The surface of nozzle 22 is coated with a hydrophobic coating, which can reduce the adhesion of coal to a certain extent. Nozzle 22 is connected to a high-pressure water pump through water injection pipe 21. When nozzle 22 is not in use, coal may block the opening of nozzle 22. When the high-pressure water pump is turned on, the strong water flow generated will break through the blockage and will not affect the use of nozzle.

[0079] In use, if the conveying pipe body 1 becomes blocked, remove the plug 13 from the mounting cylinder 12. Then, observe the blockage and determine the required soaking time. Next, remove the plug 13 from the mounting cylinder 12 at the end of the conveying pipe body 1 and remove any dirt. Then, install the water level monitor 4 in the mounting cylinder 12. Next, activate the hydraulic cylinder 3 to adjust the conveying pipe body 1 from a horizontal to an inclined state. Turn on the water pump and inject water into the conveying pipe body 1 through the water injection pipe 21 and nozzle 22. When the water level monitor 4 detects... When the water flows, the signal is transmitted to the control module, which then shuts off the water pump. The soaking time is then set via the setting device. When the soaking time is reached, the control module triggers an alarm to alert the staff. The hydraulic cylinder 3 is then activated to restore the conveying pipe body 1 to a horizontal state, and the unloader is started to check the blockage. If the blockage is cleared, the device continues to operate, and the water level monitor 4 is removed. The installation cylinder 12 is then re-blocked using the plug 13. If the blockage is not cleared, the unloader is stopped, and S2 to S5 are repeated until the blockage in the conveying pipe body 1 is cleared.

[0080] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A method for clearing blockages in the water delivery pipe of a screw unloader, characterized in that: The specific steps include, Select the preset water immersion time based on the blockage length of the conveying pipe body (1); The hydraulic cylinder (3) is controlled to adjust the conveying pipe body (1) from a horizontal state to an inclined state; Start the water pump to inject water into the main body of the delivery pipe (1); The water level is monitored using a water level monitor (4), and the water pump is turned off when the water volume reaches the level of the water level monitor (4). After the soaking time is reached, the delivery pipe body (1) is restored to a horizontal state; Start the unloader and check the dredging effect. If the blockage is not cleared, repeat steps 2 to 5. The specific types of blockages are: Mild blockage: The length of the blocked coal is less than or equal to 10% of the total length of the conveying pipe body (1); Moderate blockage: The length of the blocked coal is greater than 10% of the total length of the conveying pipe body (1) and less than or equal to 30% of the total length of the conveying pipe body (1); Severe blockage: The length of the blocked coal is greater than 30% of the total length of the conveying pipe body (1); After confirming the length of the blockage through the installation tube (12) or the observation port, the plug tube (13) in the installation tube (12) at the inlet end of the conveying pipe body (1) needs to be removed first, and the water level monitor (4) is installed into the installation tube (12). The water immersion time is also divided into three levels: 30 minutes, one hour, and two hours, which correspond to mild blockage, moderate blockage, and severe blockage, respectively. After determining the degree of blockage, the hydraulic cylinder (3) is installed at the end of the conveying pipe body (1), that is, at the blockage end. The hydraulic cylinder (3) is opened by the control module. The output end of the hydraulic cylinder (3) is lifted to adjust the conveying pipe body (1) from a horizontal state to an inclined state. The two ends of the conveying pipe body (1) are misaligned with the other parts of the unloader. The conveying pipe body (1) will not be affected when adjusting the inclined state. When the conveying pipe body (1) is adjusted from horizontal to inclined, the blocked end of the conveying pipe body (1) tilts downward, resulting in a state where the blocked end is lower and the unblocked end is higher. Water is injected into the water conveying pipe body (1) through the water injection unit (2). Under the action of gravity, the water will flow to the blocked position and continuously soak under the action of gravity, accelerating the soaking time. The tilting angle varies depending on the three different degrees of coal blockage; the tilting angle increases as the degree of blockage increases. When the conveying pipe body (1) is tilted, it is controlled by the control module. After judging the degree of blockage, the corresponding water clearing mode is started. After starting, the control module controls the hydraulic cylinder to contract and drive the blockage end to descend, so that the tilting is at a suitable angle. After tilting, the control module automatically starts the water pump to inject water into the conveying pipe body (1) through the water injection unit (2), and automatically stops water injection for soaking when the water level monitor (4) detects the water level. After determining the degree of blockage, the water pump is started to inject water into the delivery pipe body (1) through at least one water injection pipe (21) and nozzle (22) from the unblocked part. When the water level reaches the water level monitor (4), the water level monitor (4) feeds back the signal to the control module and automatically stops the water pump. The water level monitor (4) is threaded into the installation cylinder (12). When installing, first remove the plug cylinder (13) in the installation cylinder (12) that is far away from the blockage position. There will be some coal residue in the installation cylinder (12) near the inside of the conveying pipe body (1). When installing the water level monitor (4), clean it. The installation cylinder (12) located away from the blockage location is located at a certain distance from the end of the conveying pipe body (1) and at the bottom of the conveying pipe body (1). When water is injected into the conveying pipe body (1) after tilting, when the water volume reaches the position of the water level monitor (4), the water does not leak out from the conveying pipe body (1). By setting the water level monitor (4), the interaction between the control module and the water pump, the time setting device required for the preset time, and the hydraulic cylinder is adopted; After the soaking time is reached, the delivery pipe body (1) is restored to a horizontal state.

2. A water unblocking system for a screw unloader's conveying pipe, characterized in that: The method for clearing blockages in the water delivery pipe of a spiral unloader as described in claim 1 includes: The conveying pipe body (1) has a conveying component (11) inside it; The water injection unit (2) includes at least one water injection pipe (21) arranged circumferentially along the outside of the conveying pipe body (1), and at least two nozzles (22) are distributed axially along the water injection pipe (21), with the nozzles (22) facing the interior of the conveying pipe body (1); Hydraulic cylinder (3) is used to adjust the tilt of the conveying pipe body (1); A water level monitor (4) is installed on the main body of the delivery pipe (1); The control module is used to control the water injection unit (2), the water level monitor and the hydraulic cylinder (3); The outer ring of the conveying pipe body (1) is provided with at least one mounting cylinder (12) along the axial direction, and the mounting cylinder (12) is connected to the conveying pipe body (1); The mounting cylinder (12) is threaded with a plug cylinder (13), and one end of the plug cylinder (13) smoothly transitions to the inner wall of the conveying pipe body (1). The water level monitor (4) is threaded into the mounting sleeve (12); Marking lines are set on the self-contained pipe body (1), and the mounting cylinder (12) is set at the position of each marking line; One end of the plug (13) is arc-shaped, matching the curvature of the inner wall of the conveying pipe body (1); When the water level monitor (4) is installed, the monitoring end located inside is flush with the inner wall to prevent water from entering the installation cylinder (12) and accumulating during water filling, which would cause the water level monitor (4) to malfunction. If water is accidentally splashed onto the water level monitor (4) during water filling, it will fall due to gravity and will not cause a major error in the water level monitor (4). When the water filling volume reaches the water level monitor (4), the water level monitor (4) will continuously send a signal to prove that the water filling is complete.

3. The water unblocking system for the conveying pipe of the screw unloader according to claim 2, characterized in that: An observation port is provided on the main body of the conveying pipe (1), and the observation port is sealed by a flange plate.

4. The water unblocking system for the conveying pipe of the screw unloader according to claim 3, characterized in that: The conveying component (11) is an auger.

5. The water unblocking system for the conveying pipe of the screw unloader according to claim 4, characterized in that: The blade edge on the auger is attached to the inner wall of the conveying pipe body (1).

6. The water unblocking system for the conveying pipe of the screw unloader according to claim 5, characterized in that: The nozzle (22) is coated with a hydrophobic coating on the surface inside the delivery pipe body (1).

7. The water unblocking system for the conveying pipe of the screw unloader according to claim 6, characterized in that: One end of the hydraulic cylinder (3) is hinged to the conveying pipe body (1), and the other end of the hydraulic cylinder (3) is hinged to the unloader.

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