A continuous conveying system for dam embankment

Abstract

The present invention belongs to the technical field of bulk material conveying, and particularly relates to a continuous conveying system for dam embankment, which includes a mobile belt conveyor, a self-elevating conveyor, and a mobile cloth conveyor. The mobile belt conveyor includes Belt Conveyor 1, a head hopper, and a tail chute. Its bottom is provided with mobile rollers and skids, and the rear end of the skid is connected with an anchor nail through a flexible chain. The self-elevating conveyor includes Belt Conveyor 2 and a self-lifting support device, and its bottom is provided with Travel Mechanism 1. The mobile cloth conveyor includes Belt Conveyor 3. The top of its head truss and the top of its tail truss are respectively connected to the top of the intermediate truss through Pulling Oil Cylinder 1 and Pulling Oil Cylinder 2. The head and tail trusses can adjust the pitching angle. A Travel Mechanism 2 is connected below the tail, and a Travel Mechanism 3 is connected below the head. The overall system can rise as the dam embankment working surface is raised, realizing continuous material conveying, changing the traditional truck transportation mode, saving the road construction cost, and improving the conveying and cloth spreading efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of bulk material transportation, and in particular relates to a continuous transportation system for dam construction. Background Art

[0002] A dam refers to a large-scale water conservancy project built by humans to intercept and regulate river water. Dam construction requires the transportation of a large amount of loose materials such as stones, earth, cement mortar, etc. At present, most dam construction sites still use traditional automobile transportation. Since automobile transportation has high requirements for the road surface, the road slope generally cannot exceed 6°. To transport materials from the top of the mountain to the bottom of the valley, a large number of winding mountain roads need to be built, which has high transportation risks and costs. In addition, automobile transportation will produce a large amount of automobile exhaust and road dust, and there will inevitably be environmental pollution problems. In addition, the material transportation efficiency of automobile transportation is determined by factors such as road distance, number of vehicles, and frequency of reciprocating. It is impossible to achieve continuous transportation and uniform distribution of materials, and the dam construction efficiency is low and the construction period is long. Summary of the invention

[0003] In view of the above situation, the present invention provides a continuous conveying system for dam construction, which can effectively solve the problem of material transportation from the top of the mountain to the bottom of the valley during dam construction, and adapt to the complex terrain of engineering sites such as reservoir dam construction and homogeneous dam rolling.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A dam-building continuous conveying system comprises a mobile belt conveyor, a self-elevating conveyor and a mobile material distribution conveyor. According to the conveying direction of materials, a plurality of mobile belt conveyors are arranged end to end from the mountain where the dam is built to the valley bottom from back to front. A self-elevating conveyor is overlapped under the head of the front mobile belt conveyor, and a mobile material distribution conveyor is overlapped in front of the self-elevating conveyor.

[0006] The mobile belt conveyor includes a belt conveyor 1, a head funnel is provided at the head of the belt conveyor 1, a tail material guide trough is provided at the tail of the belt conveyor 1, an adjustment baffle for adjusting the material drop position and the material drop flow rate is provided in the head funnel, a V-shaped bracket is provided below the belt conveyor 1, a movable roller is provided at the bottom of the V-shaped bracket, a sliding shoe is rotatably hinged below the tail of the belt conveyor 1, the rear end of the sliding shoe is connected to an anchor nail through a soft chain, and the lower part of the anchor nail is nailed into the mountain.

[0007] The self-elevating conveyor includes a second belt conveyor. A bottom support is provided below the second belt conveyor, and a self-lifting support device is provided below the bottom support. The self-lifting support device includes a support frame and support columns. A support platform is provided at the top of the support frame. A hoisting component is provided at the bottom of the support platform. The hoisting component includes a suspension cross beam. A suspension bracket is provided on the suspension cross beam. A suspension chain and a hook are provided on the suspension bracket. A power support component is provided at the lower part of the support frame. The power support component is a support component with a hydraulic rod as the main body. The upper part of the support column is connected to the support frame through the power support component. A first traveling mechanism is provided below the support column. A transfer working surface is provided at the bottom of the valley. The first traveling mechanism is placed on the transfer working surface at the bottom of the valley.

[0008] The mobile distributing conveyor includes a third belt conveyor. The head truss, tail truss and intermediate truss of the belt conveyor are all detachably and separately connected. The bottom of the head truss and the tail truss are respectively and rotatably hinged to the bottom of the intermediate truss through hinge seats. The top of the head truss and the tail truss are respectively connected to the top of the intermediate truss through a first pulling oil cylinder and a second pulling oil cylinder. A second traveling mechanism is connected below the tail truss through a turntable connecting frame. The tail truss can rotate horizontally on the second traveling mechanism for fan-shaped distribution. A third traveling mechanism is rotatably connected below the front part of the intermediate truss through a triangular support frame. The front part of the intermediate truss can rotate vertically on the third traveling mechanism. A stacking working surface is provided above the dam. The third traveling mechanism is placed on the stacking working surface of the dam. As the height of the stacking working surface of the dam gradually increases, the height of the front part of the intermediate truss also increases layer by layer.

[0009] Further, brake pads for preventing the moving rollers from sliding down to the bottom of the valley are also provided on the mountain body. A turnbuckle is also provided between the soft chain and the sliding shoe.

[0010] Further, a head shield for preventing falling materials from generating dust is provided above the head hopper. Anti-overflow skirt plates are provided on the left and right sides of the material falling opening of the tail chute, and dust-proof leather curtains are provided on the front and rear sides.

[0011] Further, a vibrating screen is also provided at the bottom of the tail chute of the first belt conveyor. The inclined vibration can ensure the reliable sliding and uniform falling of the falling materials.

[0012] Further, a tubular rubber chute is also provided between the head hopper and the tail chute, which extends the length of the material falling opening of the head hopper and reduces the material falling height between the upstream head hopper and the downstream chute.

[0013] Further, the support column is assembled from a plurality of column modules. The column module includes a cylindrical column barrel wall. Connecting supports and stiffening ribs are provided on both the left and right sides of the column barrel wall. A connecting socket tube is connected to the bottom of the column barrel wall. The two column modules are detachably plugged together through the connecting socket tube.

[0014] Further, a belt storage device is also provided at the lower part of the front end of the intermediate truss of the third belt conveyor. When the pitching angle of the head truss and / or the tail truss of the third belt conveyor changes, the length of the conveyor belt also needs to change accordingly.

[0015] Further, both the first walking mechanism and the third walking mechanism are double-track walking mechanisms, and the second walking mechanism is a single-track walking mechanism. The single-track walking mechanism and the double-track walking mechanism are both prior arts in the field, and their specific structural settings will not be elaborated here.

[0016] The present invention also includes other components that enable its normal use, which are all conventional means in the field. In addition, devices or components not defined in the present invention, such as belt conveyors, self-elevating conveyors, single-track walking mechanisms, and double-track walking mechanisms, etc., all adopt the prior arts in the field.

[0017] The beneficial effects of the present invention are as follows:

[0018] The continuous conveying system for dam embankment provided by the present invention realizes the continuous conveying of materials from the mountain body to the valley bottom during the construction of dam embankment projects, completely changes the traditional material conveying method mainly using truck transportation in dam embankment, avoids the investment of manpower, material resources, time and capital costs for building mountain roads, avoids the risks of truck transportation, avoids vehicle exhaust pollution, reduces dust environmental pollution, and at the same time can realize the quick lifting adjustment of the base surface height of the conveying system and the continuous and uniform cloth dropping of the falling materials, improves the efficiency of material conveying, transfer and cloth dropping, and effectively guarantees the construction period of dam embankment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the continuous conveying system for dam embankment in the embodiment.

[0020] Figure 2 It is Figure 1 a top view structural diagram of the continuous conveying system for dam embankment in

[0021] Figure 3 It is Figure 1 an enlarged structural diagram of part A in

[0022] Figure 4 It is Figure 1 an enlarged structural diagram of part B in

[0023] Figure 5 It is Figure 1 an enlarged structural diagram of part C in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only partial embodiments of the present invention, rather than all embodiments.

[0025] Embodiment

[0026] As Figure 1-2 As shown, a continuous conveying system for dam embankment includes a mobile belt conveyor 1, a self-elevating conveyor 2, and a mobile distributing conveyor 3. According to the conveying direction of materials, multiple mobile belt conveyors are arranged in head-to-tail lap sequence from the mountain body 4 of the embankment dam to the valley bottom 5 from back to front. Below the head of the frontmost mobile belt conveyor, a self-elevating conveyor is lapped, and a mobile distributing conveyor is lapped in front of the self-elevating conveyor.

[0027] As Figure 3 As shown, the mobile belt conveyor includes a belt conveyor 101. At the head of the belt conveyor 101, there is a head hopper 102. Above the head hopper, there is a head shield 103 to prevent material from falling and generating dust. Between the head hopper and the tail chute, there is also a tubular rubber chute 104 to extend the length of the material falling opening of the head hopper and reduce the material falling height between the upstream head hopper and the downstream chute, which is beneficial to further reduce the dust pollution caused by material falling. On the left and right sides of the material falling opening of the tail chute, there are anti-overflow skirt plates, and on the front and back sides, there are dust-proof leather curtains to reduce material splashing and dust overflow during material falling and reduce the dust pollution caused by material falling; at the tail of the belt conveyor 101, there is a tail chute 105. At the bottom of the tail chute of the belt conveyor 101, there is also a vibrating screen. The inclined vibration can ensure the reliable sliding and uniform material falling of the material, avoiding material accumulation at the outlet of the chute; in the head hopper, there is an adjusting baffle for adjusting the material falling position and flow rate. Below the belt conveyor 101, there is a V-shaped support. At the bottom of the V-shaped support, there are mobile rollers 106. At the lower part of the tail of the belt conveyor 101, there is a rotatable hinge connection with a sliding shoe 107. The rear end of the sliding shoe is connected to an anchor nail 109 through a flexible chain 108. The lower part of the anchor nail is nailed into the mountain body to pull the sliding shoe and the tail of the belt conveyor 101 to prevent the belt conveyor 101 from sliding down along the slope of the mountain body; on the mountain body, there is also a brake pad 110 for preventing the mobile rollers from sliding down to the valley bottom. The brake pad is fixedly arranged on a protruding trapezoidal platform on the slope of the upper body; between the flexible chain and the sliding shoe, there is also a turnbuckle. The turnbuckle is connected below the tail of the belt conveyor 101 through a suspension rod. By adjusting the length of the turnbuckle, the tension between the flexible chain and the sliding shoe can be ensured.

[0028] As Figure 4As shown, the self-elevating conveyor includes a second belt conveyor 201. A bottom support is provided below the second belt conveyor, and a self-elevating support device 202 is provided below the bottom support; the self-elevating support device includes a support frame and support columns. A support platform is provided at the top of the support frame, a hoisting component is provided at the bottom of the support platform. The hoisting component includes a suspension cross beam, a suspension bracket is provided on the suspension cross beam, a lifting chain and a hook are provided on the suspension bracket. A power support component is provided at the lower part of the support frame. The power support component is a support component with a hydraulic rod as the main body. The upper part of the support column is connected to the support frame through the power support component. The support column is assembled from multiple column modules. The column module includes a cylindrical column barrel wall. Connection supports and stiffening rib plates are provided on both the left and right sides of the column barrel wall. A connection socket is connected to the bottom of the column barrel wall. The two column modules are detachably plugged together through the connection socket; the self-elevating support device adopts the self-elevating support device disclosed in the patent document CN211003131U, and the specific structure will not be elaborated here; a first traveling mechanism 203 is provided below the support column, a transfer working surface is provided at the bottom of the valley, and the first traveling mechanism is placed on the transfer working surface at the bottom of the valley.

[0029] As Figure 4-5As shown in the figure, the mobile cloth conveyor includes Belt Conveyor III. The head truss 301, tail truss 302 and middle truss 303 of the belt conveyor are all detachably and separately connected. The bottoms of the head truss and the tail truss are respectively rotatably hinged to the bottom of the middle truss through hinge seats. The tops of the head truss and the tail truss are respectively connected to the top of the middle truss through Pulling Oil Cylinder I 304 and Pulling Oil Cylinder II 305. Pulling Oil Cylinder I is used to adjust the pitching angle between the middle truss and the tail truss, and Pulling Oil Cylinder II is used to adjust the pitching angle between the head truss and the middle truss. A tape storage device is also provided at the lower part of the front end of the middle truss of Belt Conveyor III. When the pitching angles of the head truss and / or the tail truss of Belt Conveyor III change, the length of the conveyor belt also needs to change accordingly in terms of expansion and contraction. The tape storage device includes a sliding guide rail 310 fixed to the bottom of the head truss of Belt Conveyor III and a tape storage trolley 311 that can slide back and forth on the sliding guide rail. The front and back movement of the tape storage trolley is used to ensure the reliable tension of the conveyor belt of Belt Conveyor III. A Travel Mechanism II 307 is connected to the lower part of the tail truss through a turntable 306 connection frame. The Travel Mechanism II is a single-track travel mechanism, and the single-track travel mechanism adopts the track travel mechanism disclosed in the patent document CN215944718U. The tail truss can rotate horizontally on the Travel Mechanism II for fan-shaped cloth distribution. A Travel Mechanism III 309 is rotatably connected to the lower part of the front of the middle truss through a triangular support frame 308. Both the Travel Mechanism I and the Travel Mechanism III are double-track travel mechanisms, and the double-track travel mechanisms adopt the track travel mechanisms disclosed in the patent document CN213264343U. The specific structure will not be elaborated here. The front part of the middle truss can rotate vertically on the Travel Mechanism III. There is a stacking working surface above the dam. The Travel Mechanism III is placed on the dam stacking working surface. As the height of the dam stacking working surface gradually increases, the height of the front part of the middle truss also increases layer by layer.

[0030] As the height of the dam stacking working surface gradually increases, the valley bottom transfer working surface also needs to be gradually raised accordingly, and the Travel Mechanism I and the Travel Mechanism II also need to be lifted as the valley bottom transfer working surface is raised. By lifting a column module with a hoisting component and moving it into the support frame and docking and fixing it with the top of the original support column, the height of the original support column can be increased. By cross-extending and contracting the power support components, the support frame can be gradually raised along the height direction of the support column, so as to achieve the purpose of changing the height of Belt Conveyor II itself, avoid changing the height of the fuselage of Belt Conveyor II too frequently, reduce the frequency of moving Belt Conveyor II, and improve the conveying efficiency.

[0031] The technical solution of the present invention is not limited to the limitations of the above specific embodiments. Without departing from the scope and spirit of the described embodiments, many modifications and changes are obvious to those of ordinary skill in the art. Any technical deformation made within the spirit and principle of the present invention falls within the protection scope of the present invention.

Claims

1. A continuous conveying system for dam embankment, characterized in that: It includes a mobile belt conveyor, a self-elevating conveyor, and a mobile distributing conveyor. According to the conveying direction of the materials, multiple mobile belt conveyors are arranged end to end in a head-to-tail overlapping manner from the mountain body of the dam being built to the bottom of the valley from the back to the front. Below the head of the frontmost mobile belt conveyor, a self-elevating conveyor is overlapped, and a mobile distributing conveyor is overlapped in front of the self-elevating conveyor; The mobile belt conveyor includes Belt Conveyor 1. A head hopper is provided at the head of Belt Conveyor 1, and a tail guiding chute is provided at the tail of Belt Conveyor 1. An adjusting baffle for adjusting the material falling position and the material falling flow rate is provided in the head hopper. A V-shaped support is provided below Belt Conveyor 1, and mobile rollers are provided at the bottom of the V-shaped support. A sliding shoe is rotatably hinged below the tail of Belt Conveyor 1, and an anchor nail is connected to the rear end of the sliding shoe through a flexible chain, and the lower part of the anchor nail is nailed into the mountain body; The self-elevating conveyor includes Belt Conveyor 2. A bottom support is provided below Belt Conveyor 2, and a self-lifting support device is provided below the bottom support; The self-lifting support device includes a support frame and support columns. A support platform is provided at the top of the support frame, and a hoisting component is provided at the bottom of the support platform. The hoisting component includes a suspension cross beam, a suspension bracket is provided on the suspension cross beam, a lifting chain and a hook are provided on the suspension bracket. A power support component is provided at the lower part of the support frame. The power support component is a support component mainly composed of a hydraulic rod. The upper part of the support column is connected to the support frame through the power support component, and a traveling mechanism 1 is provided below the support column. The traveling mechanism 1 is placed on the valley bottom transfer working surface; The mobile distributing conveyor includes Belt Conveyor 3. The head truss, the tail truss and the middle truss of the belt conveyor are all detachably and separately connected. The bottom of the head truss and the tail truss are respectively rotatably hinged to the bottom of the middle truss through hinge seats. The top of the head truss and the tail truss are respectively connected to the top of the middle truss through a pulling oil cylinder 1 and a pulling oil cylinder 2. A traveling mechanism 2 is connected to the lower part of the tail truss through a turntable connecting frame, and a traveling mechanism 3 is rotatably connected to the lower part of the front of the middle truss through a triangular support frame. The traveling mechanism 3 is placed on the dam building working surface.

2. The continuous conveying system for dam building according to claim 1, characterized in that: Brake pads for preventing the mobile rollers from sliding down to the valley bottom are also provided on the mountain body.

3. The continuous conveying system for dam building according to claim 1, wherein: A turnbuckle is also provided between the flexible chain and the sliding shoe.

4. A continuous conveying system for dam building according to claim 1, characterized in that: A head shield for preventing dust from falling is covered above the head hopper. Anti-overflow skirt plates are provided on the left and right sides of the material falling opening of the tail guiding chute, and dust-proof leather curtains are provided on the front and rear sides.

5. The continuous conveying system for dam embankment according to claim 1, wherein: A vibrating screen is also provided at the bottom of the tail guiding chute of Belt Conveyor 1, and a tubular rubber chute is also provided between the head hopper and the tail guiding chute.

6. The continuous conveying system for dam embankment according to claim 1, characterized in that: The support column is assembled from multiple column modules. The column module includes a cylindrical column barrel wall. Connection supports and stiffening ribs are provided on both the left and right sides of the column barrel wall. A connection insertion cylinder is connected to the bottom of the column barrel wall. The two column modules are detachably inserted through the connection insertion cylinder.

7. A continuous conveying system for dam embankment according to claim 1, characterized in that: A belt storage device is also provided at the lower part of the front end of the middle truss of Belt Conveyor 3.

8. A continuous conveying system for dam embankment according to claim 1, characterized in that: Both the traveling mechanism 1 and the traveling mechanism 3 are double-track traveling mechanisms.

9. A continuous conveying system for dam embankment according to claim 1, characterized in that: The traveling mechanism 2 is a single-track traveling mechanism.

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