Sand supply device of retired fan blade high-pressure water jet cutting system

Abstract

The sand supply device of the retired fan blade high-pressure water jet cutting system comprises a support, a feeding hopper and a sand supply tank, and the support is of a frame structure; the feeding hopper is fixedly connected to the top end of the support. The upper end of the feeding hopper is detachably connected with a first cover plate. The sand supply tank is arranged in the support and located under the feeding hopper, the sand supply tank is provided with a feeding port and a discharging port, the feeding port of the sand supply tank is connected with the discharging port of the feeding hopper through a connecting pipe, the connecting pipe is connected with a control valve, the discharging port of the sand supply tank is connected with a discharging pipe, and a high sand level sensor and a low sand level sensor are arranged in the sand supply tank. And the high sand level sensor and the low sand level sensor are respectively connected with the control valve through a controller. The high sand level sensor and the low sand level sensor are arranged in the sand supply tank, and the controller is arranged to control blanking of the feeding hopper, so that automatic sand supply can be realized, the continuity of cutting operation is improved, and the efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of decommissioned wind turbine blade recycling, and particularly relates to a sand supply device of a decommissioned wind turbine blade high-pressure water jet cutting system. BACKGROUND

[0002] The service life of a wind turbine is generally 20-25 years. A discarded wind turbine can be recycled. The recyclable parts include a base, a tower, a generator component, and a wind turbine blade. When recycling the wind turbine blade, the wind turbine blade needs to be cut due to its large size. A cutting machine with a blade is usually used for cutting. A large amount of dust is generated during the cutting process, and the cutting debris also splashes everywhere, which consumes a lot of manpower and material resources to clean up, and also causes air pollution to the working environment. A high-pressure water jet cutting technology is disclosed in the related art, but it is not applied to the cutting of wind turbine blades. Moreover, for the thick and hard material of the wind turbine blade, it is difficult to cut simply with water. Currently, there is no document that discloses a water and sand mixed jet cutting method.

[0003] It is found through repeated experiments that the effect of jet cutting with water and sand mixture is remarkable, and the wind turbine blade can be easily cut without generating dust. The sand is usually stored in a sand storage tank and directly connected to a sand blasting pipe. However, due to the limited capacity of the sand storage tank, the sand needs to be frequently supplemented during the sand blasting operation, which leads to low operation efficiency and poor operation continuity. SUMMARY

[0004] The present application aims to at least partially solve one of the technical problems in the related art. To this end, the present application provides a sand supply device of a decommissioned wind turbine blade high-pressure water jet cutting system, which can automatically supply sand, improve the continuity of cutting operation, and improve the efficiency.

[0005] The present application provides a sand supply device of a decommissioned wind turbine blade high-pressure water jet cutting system, which includes a support, a feed hopper, and a sand supply tank. The support is a frame structure. The feed hopper is fixedly connected to the top end of the support. The upper end of the feed hopper is detachably connected to a first cover plate. The sand supply tank is arranged inside the support and below the feed hopper. The sand supply tank has a feed inlet and a discharge outlet. The feed inlet of the sand supply tank is connected to the discharge outlet of the feed hopper through a connecting pipe. A control valve is connected to the connecting pipe. The discharge outlet of the sand supply tank is connected to a discharge pipe. High and low sand level sensors are arranged in the sand supply tank. The high and low sand level sensors are connected to the control valve through a controller.

[0006] In some embodiments, the first cover plate and the feed inlet of the feed hopper are inserted into each other.

[0007] In some embodiments, a handle is connected to the first cover plate.

[0008] In some embodiments, the bottom of the feeding hopper is a conical bottom, and the discharge port of the feeding hopper is located at the center of the conical bottom.

[0009] In some embodiments, the sidewall of the conical bottom is connected with a sand level sensor, and the sand level sensor is connected with an alarm.

[0010] In some embodiments, the sand supply tank comprises a tank body and a second cover plate, the second cover plate is detachably fixedly connected to the top of the tank body, and the second cover plate is connected with a pressure relief valve.

[0011] In some embodiments, the second cover plate is connected with a circulation interface, and the circulation interface is suitable for connecting a sand recycling box.

[0012] In some embodiments, the discharge port of the sand supply tank is located at the bottom of the sand supply tank, the bottom of the bracket is provided with a through hole, and the discharge pipe penetrates through the through hole.

[0013] In some embodiments, the bottom of the sand supply tank is connected with a plurality of height-adjustable supporting legs, the supporting legs are uniformly arranged at the bottom of the sand supply tank, and the supporting legs are fixedly connected to the ground or a device platform by bolts.

[0014] In some embodiments, the supporting leg has an n-shaped structure and forms a perforation for pipeline penetration. BRIEF DESCRIPTION OF DRAWINGS

[0015] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description, taken in conjunction with the following drawings, of embodiments of the present application, Wherein: Figure 1 FIG. 1 is a structural schematic diagram of a sand supply device of a high-pressure water jet cutting system for a retired wind turbine blade according to an embodiment of the present application; Figure 2 FIG. 2 is an enlarged schematic diagram of part A in FIG. 1; Figure 1 Figure 3 FIG. 3 is a use schematic diagram of the sand supply device of the high-pressure water jet cutting system for the retired wind turbine blade according to the embodiment of the present application; Reference signs: 1, first cover plate; 2, feeding hopper; 3, conical bottom; 4, bracket; 5, connecting pipe; 6, sand supply tank; 61, pressure relief valve; 62, circulation interface; 63, second cover plate; 64, tank body; 7, discharge pipe; 8, supporting leg; 9, sand supply device; 10, track; 11, quantitative sand tank. DETAILED DESCRIPTION

[0016] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application. ​

[0017] The sand supply device of the high-pressure water jet cutting system for the retired wind turbine blade is described below with reference to the accompanying drawings.

[0018] As shown in Figure 1 , 2 , the sand supply device of the high-pressure water jet cutting system for the retired wind turbine blade is provided, which comprises a support 4, a feeding hopper 2 and a sand supply tank 6. The support 4 is a frame structure. The feeding hopper 2 is fixedly connected to the top end of the support 4. The upper end of the feeding hopper 2 is detachably connected with a first cover plate 1. The sand supply tank 6 is arranged inside the support 4 and directly below the feeding hopper 2. The sand supply tank 6 has a feeding port and a discharging port. The feeding port of the sand supply tank 6 is connected with the discharging port of the feeding hopper 2 through a connecting pipe 5. The connecting pipe 5 is connected with a control valve. The discharging port of the sand supply tank 6 is connected with a discharging pipe 7. The inside of the sand supply tank 6 is provided with a high sand level sensor and a low sand level sensor. The high sand level sensor and the low sand level sensor are respectively connected with the control valve through a controller.

[0019] In the embodiment, the high sand level sensor and the low sand level sensor are arranged in the sand supply tank 6, and the controller is arranged to control the feeding of the feeding hopper 2. Thus, the sand can be automatically supplied, the continuity of the cutting operation is improved, and the efficiency is improved.

[0020] In use, as shown in Figure 3 , the discharging pipe 7 of the sand supply device 9 is connected with a quantitative sand tank 11 of a high-pressure water jet cutting system 10 to provide sand for the cutting mechanism.

[0021] In some embodiments, as shown in Figure 1 , the first cover plate 1 and the feeding port of the feeding hopper 2 are inserted with each other. This facilitates the feeding of sand into the feeding hopper 2.

[0022] In some embodiments, as shown in Figure 1 , a handle is connected to the first cover plate 1. This facilitates the opening and closing of the first cover plate 1.

[0023] In some embodiments, as shown in Figure 1 , the bottom of the feeding hopper 2 is a conical bottom 3, and the discharging port of the feeding hopper 2 is located at the center of the conical bottom 3.

[0024] In some embodiments, a sand level sensor is connected to the sidewall of the conical bottom 3, and the sand level sensor is connected with an alarm. The sand level in the feeding hopper 2 can be monitored. When the sand is insufficient, the alarm will issue an alarm to notify the staff to feed sand into the feeding hopper 2 as soon as possible.

[0025] In some embodiments, as shown in Figure 2 , the sand supply tank 6 comprises a tank body 64 and a second cover plate 63. The second cover plate 63 is detachably fixedly connected to the top of the tank body 64, and a pressure relief valve 61 is connected to the second cover plate 63.

[0026] Further, the second cover plate 63 is fixedly connected to the tank body 64 by bolts.

[0027] In some embodiments, as shown in Figure 2 The circulating interface 62 is connected to the second cover plate 63, and the circulating interface 62 is suitable for connecting a sand recycling tank. The recycled sand can be recycled.

[0028] In some embodiments, as shown in Figure 2 The discharge port of the sand supply tank 6 is located at the bottom of the sand supply tank 6, a through hole is formed in the bottom of the support 4, and the discharge pipe 7 penetrates through the through hole. The discharge pipe 7 is conveniently limited, and the discharge pipe 7 is prevented from moving.

[0029] In some embodiments, as shown in Figure 2 The bottom of the sand supply tank 6 is connected to a plurality of height-adjustable supporting legs 8, the supporting legs 8 are uniformly arranged at the bottom of the sand supply tank 6, and the supporting legs 8 are fixedly connected to the ground or the equipment platform by bolts.

[0030] In some embodiments, as shown in Figure 2 The supporting leg 8 is in an n-shaped structure, and forms a perforation for the pipeline to pass through.

[0031] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0032] In addition, the terms "first", "second" are only for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0033] In the present application, unless specifically defined otherwise, the terms "mounting", "connected", "connecting", "fixed", "fixedly connected", "connection", "fixedly connected", "connected", "fixed", and the like should be construed broadly, for example, can be fixed connection, can be detachable connection, or integral; can be mechanical connection, can be electrical connection or communication with each other; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically defined. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] In the present application, unless specifically defined otherwise, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "on", "above" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0035] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or features of different embodiments or examples described in the present specification without contradiction.

[0036] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and cannot be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A sand supply device for a high-pressure water jet cutting system for decommissioned wind turbine blades, characterized in that, include: The support is a frame structure; A feeding hopper is fixedly connected to the top of the support, and a first cover plate is detachably connected to the upper end of the feeding hopper; A sand supply tank is located inside the support and directly below the feed hopper. The sand supply tank has an inlet and an outlet. The inlet of the sand supply tank is connected to the outlet of the feed hopper via a connecting pipe. A control valve is connected to the connecting pipe. The outlet of the sand supply tank is connected to an outlet pipe. A high sand level sensor and a low sand level sensor are installed inside the sand supply tank. The high sand level sensor and the low sand level sensor are respectively connected to the control valve via a controller.

2. The sand supply device of the high-pressure water jet cutting system for decommissioned wind turbine blades according to claim 1, characterized in that, The first cover plate is inserted into the feed inlet of the feed hopper.

3. The sand supply device of the high-pressure water jet cutting system for decommissioned wind turbine blades according to claim 2, characterized in that, A handle is attached to the first cover plate.

4. The sand supply device of the high-pressure water jet cutting system for decommissioned wind turbine blades according to claim 1, characterized in that, The bottom of the feed hopper is conical, and the discharge port of the feed hopper is located at the center of the conical bottom.

5. The sand supply device of the high-pressure water jet cutting system for decommissioned wind turbine blades according to claim 4, characterized in that, A sand level sensor is connected to the side wall of the conical bottom, and the sand level sensor is connected to an alarm.

6. The sand supply device of the high-pressure water jet cutting system for decommissioned wind turbine blades according to claim 1, characterized in that, The sand supply tank includes a tank body and a second cover plate. The second cover plate is detachably and fixedly connected to the top of the tank body, and a pressure relief valve is connected to the second cover plate.

7. The sand supply device of the high-pressure water jet cutting system for decommissioned wind turbine blades according to claim 6, characterized in that, The second cover plate is connected to a circulation interface, which is adapted to connect to a sand recycling box.

8. The sand supply device for the high-pressure water jet cutting system for decommissioned wind turbine blades according to claim 6, characterized in that, The outlet of the sand supply tank is located at the bottom of the sand supply tank, and a through hole is opened at the bottom of the support, through which the discharge pipe passes.

9. The sand supply device of the high-pressure water jet cutting system for decommissioned wind turbine blades according to claim 1, characterized in that, The bottom of the sand supply tank is connected to several height-adjustable support legs, which are evenly arranged at the bottom of the sand supply tank and are fixed to the ground or equipment platform by bolts.

10. The sand supply device of the high-pressure water jet cutting system for decommissioned wind turbine blades according to claim 9, characterized in that, The legs are n-shaped, forming perforations for pipes to pass through.

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