Screw unloader deplugging tool

Abstract

The utility model relates to the technical field of spiral ship unloaders, discloses a kind of spiral ship unloader unblocking tools, applied to the vertical screw conveyor of spiral ship unloader, vertical screw conveyor includes vertical spiral cylinder and the feeder of being set at vertical spiral cylinder bottom, and spiral shaft is arranged in vertical spiral cylinder;The unblocking tool includes base and the connecting frame connected with base, and the structure of base cooperates with the bottom structure of feeder, so as to be detachably connected with feeder bottom when unblocking, and connecting frame rotates under the action of external force and drives spiral shaft to rotate.The spiral ship unloader unblocking tool is simple and easy to install, convenient, and has the characteristics of strong flexibility, suitable for various working conditions.

Description

Technical Field

[0001] This utility model relates to the field of screw unloader technology, and more specifically to a tool for unblocking screw unloaders. Background Technology

[0002] A screw unloader is a ship unloading machine that uses a horizontal screw conveyor with no flexible traction components, a vertical screw conveyor, and a specially designed material handling device as its main working mechanism. It is a high-efficiency, continuous bulk cargo unloader. It mainly consists of a gantry, turntable, horizontal screw, vertical screw, and feeder. Its biggest advantage is that the operation is carried out in a closed environment, eliminating dust pollution. It is smaller and lighter than other continuous ship unloaders, but its energy consumption is high. It is generally used for unloading bulk materials such as coal, cement, bulk grain, fertilizer, and potash.

[0003] The screw unloader has the following characteristics: First, it minimizes environmental pollution. The material conveying system of a screw unloader is fully enclosed, eliminating dust and leakage of materials or odors during unloading. This is particularly advantageous for unloading materials that easily pollute the air, such as cement, pulverized coal, chalk powder, potassium salts, and ammonium phosphate. Furthermore, screw unloaders generate relatively low noise levels, which can be controlled below 60 dB(A).

[0004] Secondly, it has a simple structure and low mass. The material conveying system of a screw unloader consists entirely of a screw conveyor without flexible traction components. The conveyor has no return branches, resulting in a relatively simple structure and small cross-sectional dimensions for both the vertical and horizontal arms. Under the same productivity and target ship conditions, the screw unloader is much lighter than a grab unloader and is the lightest of all mechanical continuous unloaders. Therefore, screw unloaders have lower costs and lower requirements for the wharf's load-bearing capacity.

[0005] Third, the wear of the working components is quite severe. The main wear-prone parts of the screw unloader are the conveying screw and the intermediate support bearing of the vertical screw conveyor. Since relative sliding between the screw and the material, and relative sliding between the edge of the supporting screw and the bearing bush in the intermediate bearing, are unavoidable, the main method to improve the lifespan of the working components is to use materials with good wear resistance, which will increase the cost of the screw unloader.

[0006] Fourth, energy consumption is relatively high. During operation, the conveying screw experiences significant friction between the material and the screw surface, between the material and the trough or conveying pipe wall, as well as friction and agitation among the materials. This results in high transport resistance per unit length, making the unit energy consumption of the screw unloader higher than other mechanical continuous unloaders, comparable to grab unloaders, but much lower than pneumatic unloaders. For unloading materials with low density, good flowability, and low abrasiveness, such as cement, grain, and coal, the unit energy consumption is low. However, for unloading materials with higher density and greater abrasiveness, such as phosphates and iron ore powder, the unit energy consumption will increase significantly.

[0007] Fifth, poor material adaptability. The screw unloader has poor adaptability to small and miscellaneous coal pieces in wet, sticky coal machines, and is prone to material blockage during operation, causing equipment failure that is difficult to handle and affects operational efficiency.

[0008] Given the characteristics of the screw unloader, if material blockage occurs and is not addressed in a timely manner, it will cause a large amount of material to clog the inside of the vertical screw, making it impossible to clear. This will affect the lifespan of the drive motor, accelerate the wear rate of the screw, and seriously impact production operations.

[0009] In existing technologies, the main method for unclogging screw unloaders is to reverse the vertical screw drive motor. The force generated by the reverse rotation of the motor reverses the force acting on the jammed material, causing it to be discharged from the end. However, in actual production operations, the torque generated by the motor is insufficient to handle all jammed material situations. Therefore, it is necessary to dismantle the vertical screw drum wall for maintenance and unclogging. This method significantly impacts production efficiency and carries high maintenance risks. Furthermore, high-load operation of the motor severely reduces its lifespan, also affecting the overall service life of the screw unloader. Utility Model Content

[0010] The purpose of this invention is to overcome the problem of low efficiency in the existing deblocking methods of screw unloaders, and to provide a deblocking tool for screw unloaders. This deblocking tool is simple to install, flexible to use, and suitable for various working conditions.

[0011] To achieve the above objectives, this utility model provides a deblocking tool for a screw unloader, which is applied to the vertical screw conveyor of the screw unloader. The vertical screw conveyor includes a vertical screw cylinder and a feeder set at the bottom of the vertical screw cylinder. A screw shaft is set inside the vertical screw cylinder. The unblocking tool includes a base and a connecting frame connected to the base. The structure of the base matches the bottom structure of the feeder so that the base and the bottom of the feeder can be detachably connected during unblocking. The connecting frame rotates under the action of external force, which drives the screw shaft to rotate.

[0012] Preferably, the base has mounting holes, the feeder includes a spiral base, the spiral base and the spiral shaft are detachably connected by fasteners, and the structure and position of the mounting holes are matched with the structure and position of the fasteners.

[0013] Preferably, the fastener is a bolt, and the mounting hole is a threaded hole that matches the bolt.

[0014] Preferably, the unblocking tool also includes a mounting component, and the connecting bracket and the base are connected by the mounting component.

[0015] Preferably, the connecting frame is a steel pipe.

[0016] Preferably, the steel pipe is connected to the force-applying lever.

[0017] Preferably, the connecting frame is connected to an external force boosting device.

[0018] Preferably, the external force-assisted device is a loader.

[0019] Preferably, the external force-assisted device is a forklift.

[0020] Through the above technical solution, the unblocking tool for a screw unloader of this application can be installed at the bottom of the feeder of a vertical screw conveyor. Under the action of external force, the connecting frame of the unblocking tool rotates, thereby driving the screw shaft to rotate. The structure of the unblocking tool is compatible with the bottom structure of the feeder, making it suitable for various working conditions and improving the versatility and flexibility of the unblocking tool. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the unblocking tool; Figure 2 This is a bottom view of the feeder's structure. Figure 3 This is a schematic diagram of a vertical screw conveyor.

[0022] Explanation of reference numerals in the attached figures 1. Vertical screw conveyor; 11. Vertical screw drum; 12. Feeder; 13. Screw shaft; 121. Screw base; 1211. Fastener; 122. Material inlet; 123. Connecting flange; 2. Unblocking tool; 21. Base; 211. Mounting hole; 22. Connecting frame; 221. Mounting component. Detailed Implementation

[0023] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0024] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, inside, outside, far, near, front" are generally used to refer to the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and therefore should not be construed as limiting this utility model.

[0025] like Figure 1 The invention relates to a deblocking tool for a screw unloader, which is applied to the vertical screw conveyor 1 of the screw unloader. The vertical screw conveyor 1 includes a vertical screw cylinder 11 and a feeder 12 disposed at the bottom of the vertical screw cylinder 11. A screw shaft 13 is disposed inside the vertical screw cylinder 11. The unblocking tool 2 includes a base 21 and a connecting frame 22 connected to the base 21. The structure of the base 21 is matched with the bottom structure of the feeder 12 so that the base 21 and the bottom of the feeder 12 can be detachably connected during unblocking. The connecting frame 22 rotates under the action of external force, thereby driving the screw shaft 13 to rotate.

[0026] like Figure 3 The structure of the vertical screw conveyor 1 of the screw unloader is shown. The vertical screw conveyor 1 includes a vertical screw drum 11, a top vertical screw drive motor, and a bottom feeder 12. A screw shaft 13 is disposed inside the vertical screw drum 11 and connected to the top vertical screw drive motor. The vertical screw drum 11 and the bottom feeder 12 are connected via a connecting flange 123. A bottom view of the feeder 12 is shown below. Figure 2 As shown, the feeder 12 includes a spiral base 121, which is connected to the bottom of the spiral shaft 13. The feeder 12 is also provided with a material inlet 122, which is connected to the bolt space formed by the spiral shaft 13 and the vertical spiral cylinder 11.

[0027] In actual operation, under normal operating conditions, the vertical screw drive motor at the top of the vertical screw conveyor 1 drives the screw shaft 13 to rotate, and the material enters the vertical screw drum 11 from the feeder 12 at the bottom for conveying. When the conveyed material jams the rotation of the screw shaft 13, causing the vertical screw conveyor 1 to malfunction, the common method of unblocking is to reverse the rotation of the vertical screw drive motor, driving the screw shaft 13 to rotate in the opposite direction, thereby applying a reverse force to the jammed material and causing it to be discharged from the end of the feeder 12, thus achieving the unblocking effect. However, this unblocking method also has the problem that the torque generated by the reverse rotation of the vertical screw drive motor may not be sufficient to handle the jammed material. In such cases, it is necessary to further disassemble and repair the vertical screw drum 11 to remove the jammed material. This unblocking method is time-consuming, significantly affecting the operating efficiency of the screw unloader and increasing the risk of damage to the vertical screw drum 11. Furthermore, the high load operation of the vertical screw drive motor will reduce its service life.

[0028] Therefore, this utility model designs a deblocking tool 2 for a screw unloader, such as... Figure 1 As shown, specifically, the unblocking tool 2 of the screw unloader includes a base 21 and a connecting frame 22. The connection between the base 21 and the connecting frame 22 can be a detachable connection, a fixed connection, or an integral molding, etc., to achieve the overall stability of the unblocking tool 2.

[0029] In actual operation, when the torque generated by the reverse rotation of the vertical screw drive motor is insufficient to handle material jamming, the unblocking tool 2 is used to unblock the vertical screw conveyor 1. During the unblocking operation, the base 21 of the unblocking tool 2 needs to be detachably connected to the bottom of the feeder 12. This connection should be sufficient to stably install the base 21 on the bottom of the feeder 12. The detachable connection allows the unblocking tool 2 to be removed after use, restoring the feeder 12 to its normal structure and preventing any impact on its normal operation.

[0030] The unblocking tool 2 of this utility model for a screw unloader can be used independently. Under the action of external force, the connecting frame 22 of the unblocking tool 2 is pushed to rotate, thereby driving the entire unblocking tool 2 to rotate, and in turn driving the screw shaft 13 to rotate. It should be noted that the rotation of the screw shaft 13 is the opposite direction of its normal rotation. The unblocking tool 2 of the screw unloader can also be used in conjunction with a vertical screw drive motor to drive the screw shaft 13 to rotate in the opposite direction, preferably without causing high load on the vertical screw drive motor, which can further improve the unblocking efficiency of the screw unloader.

[0031] The unblocking tool 2 of this utility model for a screw unloader has a simple structure. By connecting an external device to the vertical screw conveyor 1, the rotational torque on the screw shaft 13 is increased. When the vertical screw conveyor 1 becomes clogged, the unblocking tool 2 of the screw unloader can be used to apply external force to drive the screw shaft 13 to rotate in the opposite direction, thereby releasing the material and clearing the blockage.

[0032] The unblocking tool 2 for screw unloaders is applicable to various types of screw unloaders. It can be installed at the bottom of the feeder of the vertical screw conveyor 1. The external force applied to the unblocking tool 2 is controllable; the method of applying external force can be flexibly selected according to the material jamming situation. It can be done manually or with external force-applying equipment, without affecting the screw unloader itself. The unblocking tool 2 for screw unloaders has a simple structure and is suitable for various working conditions.

[0033] Furthermore, the base 21 is provided with mounting holes 211, and the feeder 12 includes a spiral base 121. The spiral base 121 and the spiral shaft 13 are detachably connected by fasteners 1211. The structure and position distribution of the mounting holes 211 are matched with the structure and position distribution of the fasteners 1211.

[0034] Specifically, such as Figure 1 and Figure 2 As shown, the base 21 of the unloading tool 2 of the screw unloader has mounting holes 211, and the screw base 121 of the feeder 12 is detachably connected to the screw shaft 13 by fasteners 1211. The position distribution of the mounting holes 211 matches the position distribution of the fasteners 1211, and the structure of the mounting holes 211 matches the structure of the fasteners 1211.

[0035] During the unblocking operation, after the fastener 1211 is removed, the base 21 and the spiral base 121 are connected together by the fastener 1211, thereby fixing the unblocking tool 2 to the bottom of the spiral shaft 13. When an external force pushes the unblocking tool 2 to rotate, it can drive the spiral shaft 13 to rotate. The installation and connection of the unblocking tool 2 and the spiral base 121 is simple and quick, which can effectively improve the fault handling efficiency of the spiral unloader, significantly reduce the fault handling time, reduce the impact of jammed materials on production operations, and thus improve production efficiency.

[0036] Furthermore, the fastener 1211 is a bolt, and the mounting hole 211 is a threaded hole that matches the bolt.

[0037] Specifically, the fastener 1211 is set as a bolt, which is one embodiment of the fastener 1211 structure. The fastener 1211 is a bolt, and the mounting hole 211 is a screw hole that matches the bolt. During installation, the mounting hole 211 and the fastener 1211 can be easily installed, which is simple to operate and reduces the difficulty of the workers' work.

[0038] Furthermore, the unblocking tool 2 also includes a mounting component 221, through which the connecting bracket 22 and the base 21 are connected.

[0039] like Figure 1 As shown, the mounting component 221 is one embodiment of the connection method between the connecting frame 22 and the base 21, making the connecting frame 22 and the base 21 detachably connected. When the connecting frame 22 or the base 21 is damaged and needs to be replaced, only the damaged structure needs to be replaced, which can reduce replacement costs. The mounting component 221 can securely connect the connecting frame 22 and the base 21, preferably a bolt, which is convenient, easy to operate, and has high installation efficiency.

[0040] Furthermore, the connecting frame 22 is made of steel pipe.

[0041] The connecting frame 22 can be made of a relatively strong material. One embodiment of the connecting frame 22 is to use steel pipe as the material. Steel pipe is low in cost, strong in rigidity, and a common material. The tubular structure is also easy for workers to hold and easy to apply force when clearing blockages.

[0042] Furthermore, the steel pipe is connected to the lever.

[0043] The connecting frame 22 adopts a steel pipe structure. According to the principle of torque lever, in order to increase the torque, an external lever can be connected to the steel pipe to reduce the external force while achieving the same effect, thereby improving the efficiency of unblocking operations.

[0044] Furthermore, the connecting frame 22 connects to the external force boosting device.

[0045] The connecting frame 22 can also be connected to an external force booster device. By using the external force booster device to apply external force to the connecting frame 22, the work efficiency of the unblocking operation can be further improved, and the operational burden of the unblocking operation can be reduced for the staff. The external force booster device should preferably be a device that can easily apply external force to the connecting frame 22.

[0046] Furthermore, the external force booster is a loader.

[0047] The loader is one embodiment of the external force propulsion device. Loaders are commonly used equipment in the application of screw unloaders. They can be used at any time and are easy to operate.

[0048] Furthermore, the external force booster is a forklift.

[0049] Forklifts are another embodiment of external force-assisted propulsion devices. Forklifts are commonly used equipment in the application of screw unloaders, and they can be used at any time and are easy to operate.

[0050] Based on the principle of torque tools and combined with the actual application conditions of screw unloaders, this utility model designs a base 21 that connects to the screw base 121 of the vertical screw conveyor 1. The base 21 has matching mounting holes 211 made according to the connection structure between the screw base 121 and the screw shaft 13, facilitating the connection between the unblocking tool 2 and the vertical screw conveyor 1. The base 21 of the unblocking tool 2 is connected to the connecting frame 22 by welding, bolting, or other methods to form a stable overall structure. In actual production operations, when material blockage occurs in the vertical screw conveyor 1 of the screw unloader, the unblocking tool 2 of this utility model can be bolted to the bottom of the screw shaft 13 of the vertical screw conveyor 1 for unblocking operations. The unblocking tool 2, by adding a force-adding rod or connecting an external force-assisting device, can unblock and clear material blockages of varying degrees. The unblocking tool 2 is simple and convenient to install and operate, and its unblocking operation is simple, efficient, and highly flexible, making it suitable for various working conditions.

[0051] It should be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0052] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A deblocking tool for a screw unloader, applied to the vertical screw conveyor (1) of a screw unloader, characterized in that, The vertical screw conveyor (1) includes a vertical screw cylinder (11) and a feeder (12) disposed at the bottom of the vertical screw cylinder (11). A screw shaft (13) is disposed inside the vertical screw cylinder (11). The unblocking tool (2) includes a base (21) and a connecting frame (22) connected to the base (21). The structure of the base (21) is matched with the bottom structure of the feeder (12) so that the base (21) and the bottom of the feeder (12) can be detachably connected during unblocking. The connecting frame (22) rotates under the action of external force, thereby driving the spiral shaft (13) to rotate.

2. The unblocking tool for a screw unloader according to claim 1, characterized in that, The base (21) has mounting holes (211) distributed thereon. The feeder (12) includes a spiral base (121). The spiral base (121) and the spiral shaft (13) are detachably connected by fasteners (1211). The structure and position distribution of the mounting holes (211) are matched with the structure and position distribution of the fasteners (1211).

3. The unblocking tool for a screw unloader according to claim 2, characterized in that, The fastener (1211) is a bolt, and the mounting hole (211) is a threaded hole that matches the bolt.

4. The unblocking tool for a screw unloader according to claim 1, characterized in that, The unblocking tool (2) also includes an installation component (221), and the connecting frame (22) is connected to the base (21) through the installation component (221).

5. The unblocking tool for a screw unloader according to claim 1, characterized in that, The connecting frame (22) is a steel pipe.

6. The unblocking tool for a screw unloader according to claim 5, characterized in that, The steel pipe is connected to the force-applying lever.

7. The unblocking tool for a screw unloader according to any one of claims 1-5, characterized in that, The connecting frame (22) is connected to the external force boosting device.

8. The unblocking tool for a screw unloader according to claim 7, characterized in that, The external force booster device is a loader.

9. The unblocking tool for a screw unloader according to claim 7, characterized in that, The external force boosting device is a forklift.

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