CN-122013692-A - Wind-proof and sand-proof barrier prepared by using retired fan blades and preparation method thereof

CN122013692ACN 122013692 ACN122013692 ACN 122013692ACN-122013692-A

Abstract

The invention provides a screen sand-preventing barrier prepared by using retired fan blades and a manufacturing method thereof, wherein the screen is formed by splicing a plurality of wind-shielding units, each unit comprises an H-shaped steel upright post and a sand-blocking plate cut by the retired fan blades, the sand-blocking plate is inserted into a gap of the flange of the upright post and is provided with a rubber cushion layer, the surface of the sand-blocking plate is provided with a strip-shaped diversion hole, a new section is coated with epoxy resin for sealing, and an original protective paint layer faces to the windward side; the upright post buried part is provided with a sand fixing structure containing a waste steel plate tensioning plate, the tensioning plate automatically opens to bite sand when pressed into a foundation, and the bottom of the sand blocking plate is provided with a condensation water collecting and guiding structure which can condense vapor and guide the water to the sand around the tensioning plate. The manufacturing method comprises the steps of blade cutting and punching, new section sealing, sand fixation and water collection structure assembling, column burying, sand baffle installation and unit splicing. The invention realizes the synergistic high-value utilization of the retired fan blades and the waste steel plates, has stable structure, is convenient to install and maintain, and has the effects of wind prevention, sand blocking and ecological improvement.

Inventors

Zhao Lixinran
Hu Lechao
WANG SHENG
HUANG BIN
JIAO PENGFEI
MA WEIGANG
LI TAO
GUO ZHONGXU
HU YANG

Assignees

内蒙古三峡蒙能能源有限公司
三峡陆上新能源投资有限公司
中国长江三峡集团有限公司

Dates

Publication Date: 20260512
Application Date: 20260313
Priority Date: 20251210

Claims (10)

1. A wind-proof sand-blocking screen prepared by using retired fan blades is characterized by comprising a plurality of wind-blocking units which are spliced in parallel, each wind-blocking unit comprises an H-shaped steel upright post and a sand-blocking plate, each sand-blocking plate is formed by cutting retired fan blades, each sand-blocking plate is inserted into a flange gap of each adjacent H-shaped steel upright post, a rubber cushion layer is arranged on the contact surface of each sand-blocking plate and each H-shaped steel upright post, the top of each H-shaped steel upright post is fastened with the upper edge of each sand-blocking plate through angle steel and a filling plate matched with bolts, a plurality of strip-shaped guide holes are formed in the surface of each sand-blocking plate, a sealing protection film formed by solidifying epoxy resin glue is coated on the new cut and punched sections of each sand-blocking plate, and one surface of each original outer protection paint layer reserved by each sand-blocking plate faces towards the windward side.
2. The method for preparing a wind-shielding sand-preventing barrier by utilizing retired fan blades according to claim 1, wherein the part of the H-shaped steel upright embedded in a foundation is provided with a sand-fixing structure, the sand-fixing structure comprises a fixed sleeve, a sliding sleeve, a top block and a plurality of tensioning plates, the fixed sleeve is fixedly connected to the H-shaped steel upright, the sliding sleeve and the top block are slidingly connected to the H-shaped steel upright, the tensioning plates are formed by cutting waste steel plates, the tail ends of the tensioning plates are provided with hooks, the tensioning plates are annularly fixed to the sliding sleeve, the bottoms of the top blocks are fixedly connected with conical blocking parts, and the blocking parts push the top blocks to move upwards under the reverse action of a foundation in the process of downwards moving the H-shaped steel upright, so that the top blocks push the tensioning plates to open so as to respectively insert the tensioning plates into nearby sandy soil.
3. The method for preparing a wind-shielding sand-preventing barrier by utilizing retired fan blades according to claim 2, wherein a condensing plate and a guide plate are fixedly connected to the bottom of the sand-blocking plate, the guide plate is used for guiding water condensed on the condensing plate to H-shaped steel upright posts at two ends, a water collecting tank is fixedly connected to the H-shaped steel upright posts, a water guide pipe corresponding to the tensioning plate is fixedly connected to the water collecting tank, a water guide groove is formed in the tensioning plate, and the water guide groove is positioned at the tail end of the water guide pipe and used for introducing water of the water guide pipe into sand nearby the tensioning plate so as to increase the water content of sand and the tension on the tensioning plate.
4. The method for manufacturing a wind-shielding sand-proof barrier by using retired fan blades according to claim 1, wherein the cutting thickness of the sand-proof plate is 5-10 cm, the length of the sand-proof plate is 2m, the height of the sand-proof plate is 1m, and the depth of the gap between two sides of the sand-proof plate inserted into the flanges of the H-shaped steel stand columns is 7 cm.
5. The method of claim 1, wherein the elongated deflector hole has a length of 30 cm and a width of 12 cm, the spacing between adjacent elongated deflector holes is 8 cm, and the porosity of the deflector is 30% to 50%.
6. The method for manufacturing a wind and sand prevention barrier by using retired fan blades according to claim 1, wherein the total height of the H-shaped steel upright post is 1.6 m to 2.5 m, and the depth of the lower end of the upright post buried in the foundation is 0.5m to 0.9 m.
7. A method for manufacturing a wind-proof sand-proof barrier by using retired fan blades, which is used for manufacturing the wind-proof sand-proof barrier as claimed in claims 1,4, 5 and 6, and is characterized by comprising the following steps: S1, selecting a section with complete structure and complete outer protective paint layer in a retired fan blade, and cutting the section into rectangular plates with the specification of 2 meters long, 1 meter high and 5-10 cm thick; S2, forming a plurality of strip-shaped flow guide holes on the rectangular plate, wherein the strip-shaped flow guide holes are 30 cm long and 12 cm wide, and the distance between adjacent strip-shaped flow guide holes is 8cm, so that the porosity of the rectangular plate is 30-50%; step S3, brushing epoxy resin glue on the new cut and punched sections of the rectangular plate and curing to form a sealing protection film to obtain a sand baffle; S4, selecting H-shaped steel columns with the total height of 1.6-2.5 meters, positioning the H-shaped steel columns in a sand prevention area according to a designed interval, and burying the lower ends of the H-shaped steel columns into a foundation to a depth of 0.5-0.9 meter; S5, vertically inserting the sand blocking plate into flange gaps of adjacent H-shaped steel columns in the direction of the windward side by using the original outer protective paint layer, enabling the depth of the flange gaps inserted into two sides of the sand blocking plate to be 7 cm, and presetting a rubber cushion layer on the contact surface of the sand blocking plate and the H-shaped steel columns; And S6, installing angle steel and a filling plate on the upper edge of the sand blocking plate, fastening and connecting the angle steel with the H-shaped steel upright column by adopting bolts to finish the installation of a single wind blocking unit, and splicing a plurality of wind blocking units to form the sand blocking screen.
8. The method for manufacturing the wind-shielding sand prevention barrier by utilizing the retired fan blade according to claim 7, wherein the high-pressure water jet knife is adopted for cutting and punching in the step S1 and the step S2, and the bolts adopted in the step S6 are hot galvanizing high-strength bolts.
9. The method for manufacturing a wind-proof and sand-blocking screen according to claim 7, wherein the wind-proof and sand-blocking screen according to claim 2 is manufactured by using retired fan blades, and the method further comprises the step of assembling a sand-fixing structure S0 before the step S4: S01, cutting waste steel plates to form a plurality of tensioning plates, machining a hook part at the tail end of each tensioning plate, fixedly connecting a fixed sleeve on a preset section of an H-shaped steel upright post embedded in a foundation, and simultaneously connecting a sliding sleeve and a top block in a sliding manner on the preset section, wherein the top block is positioned below the sliding sleeve; step S02, fixing a plurality of tensioning plates on a sliding sleeve in an annular shape, and fixedly connecting a conical blocking part at the bottom of a top block to complete the assembly of the sand fixation structure on the H-shaped steel upright post; In the step S4, when the H-shaped steel upright post assembled with the sand fixing structure is pressed down into the foundation, the foundation sand forms a reverse acting force on the conical blocking portion, the top block is pushed to move upwards along the H-shaped steel upright post, and the top block pushes the sliding sleeve upwards to drive the tensioning plate to open, so that the tensioning plate is inserted into the sand near the H-shaped steel upright post.
10. The method for manufacturing a wind-proof and sand-blocking screen according to claim 9, wherein the method is used for manufacturing a wind-proof and sand-blocking screen according to claim 3, and the method further comprises the assembly steps of the condensation water-collecting and water-guiding structure, specifically: Step A1, fixedly connecting a condensing plate and a guide plate at the bottom of the sand baffle obtained in the step S3, so that the water outlet end of the guide plate faces to the mounting positions of H-shaped steel upright posts at the two ends of the sand baffle; Step A2, fixedly connecting a water collecting tank on the H-shaped steel upright post in the step S01, wherein the position of the water collecting tank corresponds to the water outlet end of the guide plate, fixedly connecting a water guide pipe on the water collecting tank, and the tail ends of the water guide pipes correspond to the positions of the tensioning plates one by one; And A3, arranging a water guide groove on the tensioning plate in the step S01, and enabling the water guide groove to be positioned below the tail end of the corresponding water guide pipe to finish the assembly of the condensation water collection water guide structure.

Description

Wind-proof and sand-proof barrier prepared by using retired fan blades and preparation method thereof Technical Field The invention relates to the technical field of wind sand control engineering and solid waste resource utilization, in particular to a wind sand prevention barrier prepared by using retired fan blades and a manufacturing method thereof. Background Desertification and sand damage problems in northern areas of China are remarkable, the regional ecological environment can be destroyed in strong sand weather, and meanwhile, the structural safety of infrastructures such as railways, highways and the like is continuously threatened, so that an efficient and reliable sand prevention technology is needed to cope with the problems. Meanwhile, renewable energy industry rapidly develops, and early-stage running wind turbines are concentrated into a retirement stage, so that a large number of retired fan blades are generated. The core materials of the blade are composite materials such as glass fiber, epoxy resin and the like, the materials are difficult to degrade naturally, if the traditional landfill method is adopted for treatment, soil resources are occupied for a long time, soil and groundwater are possibly polluted, if the incineration method is adopted for treatment, harmful gas is generated, the ecological environment is irreversibly influenced, and meanwhile, the waste of resources is huge. The existing recycling treatment of the retired fan blade has a plurality of bottlenecks, namely the retired fan blade is used as a building material after being simply and physically crushed, belongs to low-added-value utilization, cannot absorb the increasing blade scrapping amount, and can obtain a high-value material if the fiber is recycled through high-temperature pyrolysis, chemical solvent dissolution and other processes, but has the problems of high energy consumption, severe process conditions, high equipment requirements, easiness in generating secondary pollution and the like, and the difficulty and cost of industrialized application are high. Disclosure of Invention Aiming at the defects existing in the prior art, the invention provides a wind and sand prevention barrier prepared by using retired fan blades and a manufacturing method thereof, which on one hand provides a new way for recycling the retired fan blades in a high-valued and large-scale way to relieve the environmental pressure brought by the retired fan blades, and on the other hand provides a wind and sand prevention facility with stable structure and strong weather resistance to effectively block wind and sand and protect the ecological environment and infrastructure of an area. In order to achieve the above purpose, the present invention adopts the following technical scheme: A wind-proof sand-blocking screen is prepared from retired fan blades through preparing wind-blocking units, each wind-blocking unit comprises H-shaped steel upright posts and sand-blocking plates, each wind-blocking unit is made of retired fan blades through cutting, each sand-blocking plate is inserted into a flange gap of each H-shaped steel upright post, an EPDM rubber cushion layer is arranged on the contact surface of each sand-blocking plate and each H-shaped steel upright post, the top of each H-shaped steel upright post is used for fastening the upper edge of each sand-blocking plate through matching angle steel and a filling plate with bolts, a plurality of strip-shaped diversion holes are formed in the surface of each sand-blocking plate, sealing protection films formed by solidifying epoxy resin glue are coated on new cut and punched sections of each sand-blocking plate, and one surface of each original outer protection paint layer reserved by each sand-blocking plate faces to a windward side. Further, the cutting thickness of the sand baffle is 5-10 cm, the length of the sand baffle is 2m, the height of the sand baffle is 1m, the depth of the gap between the flanges of the H-shaped steel upright posts inserted into the two sides of the sand baffle is 7 cm, the size of the long strip-shaped diversion holes is 30 cm long and 12 cm wide, the distance between the adjacent diversion holes is 8 cm, and the porosity of the sand baffle is controlled to be 30-50%. Furthermore, the total height of the H-shaped steel upright post is 1.6-2.5 m, the depth of the lower end of the H-shaped steel upright post embedded in the foundation is 0.5-0.9 m, and the new section covered by the epoxy resin glue sealing protective film comprises the leeward surface of the sand baffle plate, the peripheral edges of the plate and the inner wall of the guide hole. Still further, the part that H shaped steel stand buries in the ground is installed and is fixed sand structure, it includes fixed cover, slip cap, kicking block and a plurality of tensioning board to fix sand structure, fixed cover fixed connection is on H shaped steel stand, slip cap and kicking block sliding conn