Rigid joint of powder material conveying system on movable steel approach bridge

Abstract

The present invention relates to a rigid joint for a powder material conveying system on a movable steel approach bridge, comprising an upper section powder material conveying device and a lower section powder material conveying device, a hopper group being provided above the lower section powder material conveying device, a guide rail being provided above the hopper group, a roller being provided between the hopper group and the guide rail, a sliding cover being provided above the guide rail, a chute group being provided above the sliding cover via a hinge support, the chute group comprising a fixed chute, a pin shaft and a telescopic chute, the fixed chute being connected to the telescopic chute via a pin shaft, the telescopic chute being provided on a hinge support, and the fixed chute being provided below the upper section powder material conveying device. The present invention can adapt to the displacement between the steel approach bridge and the shore connection facilities due to water level changes, reduces the collision of materials with the joint during the falling process, and reduces the wear of the joint; and the joint is made of steel, which has high strength and good wear resistance, thereby increasing the service life of the joint.

Description

Technical Field

[0001] The invention relates to the field of powder material conveying equipment, and more particularly to a rigid joint of a powder material conveying system on a movable steel approach bridge. Background Art

[0002] The loading and unloading of bulk cement, fly ash, and other powdered materials at docks requires high conveying efficiency, and the entire conveying process must be enclosed. Conveying equipment such as air chutes and screw conveyors are often used. Due to the large water level differences in the middle and upper reaches of the Yangtze River, docks often use pontoon dock structures, with the pontoons and shore-connected facilities connected by movable steel approach bridges. When the water level changes, one end of the steel approach bridge rotates around a fixed hinged support, while the other end slides along the shore-connected facilities. As a result, there is a large displacement between the conveying equipment fixed to the steel approach bridge and the conveying equipment fixed to the shore-connected facilities. A movable joint is required to connect the two sections of conveying equipment to accommodate displacement in the vertical, horizontal, and angular directions.

[0003] Existing flexible joints typically utilize a flexible hose connector with a certain degree of flexibility, typically made of canvas, rubber, or nylon. While these connectors can accommodate displacement between the two conveying equipment sections caused by water level fluctuations, the angle of the hose changes with the rotation of the steel approach bridge, causing the powder to constantly collide with the pipe wall during its fall, accelerating hose wear. Furthermore, due to the low strength and wear resistance of the flexible material, the hose connector has a short lifespan and requires frequent replacement. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a rigid joint for the powder conveying system on a movable steel approach bridge, which can adapt to the displacement between the movable steel approach bridge and the shore facilities caused by water level changes, and at the same time increase the wear resistance of the joint and improve the service life of the joint.

[0005] The technical solution adopted by the present invention to solve its technical problems is: constructing a rigid joint of the powder conveying system on a movable steel approach bridge, including an upper section powder conveying equipment and a lower section powder conveying equipment, a hopper group is arranged above the lower section powder conveying equipment, a guide rail is arranged above the hopper group, rollers are arranged between the hopper group and the guide rail, a sliding cover is arranged above the guide rail, a chute group is arranged above the sliding cover through a hinge support, the chute group includes a fixed chute, a pin shaft and a telescopic chute, the fixed chute is connected to the telescopic chute through a pin shaft, the telescopic chute is arranged on the hinge support, and the fixed chute is arranged below the upper section powder conveying equipment.

[0006] According to the above solution, the telescopic chute can be telescoped up and down.

[0007] According to the above solution, the telescopic chute and the sliding cover can rotate around the hinge support.

[0008] The rigid joint of the powder material conveying system on the movable steel approach bridge of the present invention has the following beneficial effects:

[0009] The present invention is suitable for pontoon floating docks for loading and unloading powder materials. It can adapt to the displacement between the steel approach bridge and the shore facilities due to water level changes, reduce the collision of materials with the joints during the falling process, and reduce the wear of the joints. In addition, the joints are made of steel with high strength and good wear resistance, which increases the service life of the joints. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0011] Figure 1 This is a structural schematic diagram of a rigid joint of a powder material conveying system on a movable steel approach bridge of the present invention;

[0012] Figure 2 yes Figure 1 A side structural diagram of

[0013] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention applied to a wharf.

[0014] In the figure, 1. chute group, 101. fixed chute, 102. pin shaft, 103. telescopic chute, 2. hinge support, 3. sliding cover, 4. guide rail, 5. hopper group, 6. roller, 7. upper section powder material conveying equipment, 8. lower section powder material conveying equipment, 9. pontoon, 10. movable steel approach bridge, 11. shore connection facilities. DETAILED DESCRIPTION

[0015] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described in detail with reference to the accompanying drawings.

[0016] like Figure 1-2 As shown, the rigid joint of the powder conveying system on the movable steel approach bridge of the present invention includes an upper section powder conveying device 7 and a lower section powder conveying device 8. A hopper group 5 is provided above the lower section powder conveying device 8. A guide rail 4 is provided above the hopper group 5. Rollers 6 are provided between the hopper group 5 and the guide rail 4. A sliding cover 3 is provided above the guide rail 4. A chute group 1 is provided above the sliding cover 3 via a hinge support 2. The chute group 1 includes a fixed chute 101, a pin 102, and a telescopic chute 103. The telescopic chute 103 can be extended and retracted. The telescopic chute 103 and the sliding cover 3 can rotate relative to each other around the hinge support 2. The fixed chute 101 is connected to the telescopic chute 103 via a pin 102. The telescopic chute 103 is provided on the hinge support 2. The fixed chute 101 is provided below the upper section powder conveying device 7.

[0017] In a preferred embodiment of the present invention, a chute assembly 1 is installed below the upper conveying equipment. The chute assembly 1 is composed of a fixed chute 101, a pin 102, and a telescopic chute 103. The fixed chute 101 and the telescopic chute 103 can rotate relative to each other around the pin 102 to accommodate the angular displacement caused by the inclination of the steel approach bridge. The telescopic chute 103 can be extended and retracted up and down to accommodate the vertical displacement caused by changes in water level. A sliding cover 3 is provided below the chute assembly 1. The chute assembly 1 and the sliding cover 3 are connected by a hinge support 2, and can rotate relative to each other around the hinge support 2 to accommodate the angular displacement caused by changes in water level. A guide rail 4 is installed below the sliding cover 3, which can slide relative to each other along the roller 6 installed on the hopper assembly 5 to accommodate the horizontal displacement caused by changes in water level. The hopper assembly 5 is installed above the lower conveying equipment.

[0018] In a preferred embodiment of the present invention, when the water level changes, the angular and horizontal displacements between the movable steel approach bridge 10 and the shore connection facility 11 are absorbed by the hinged support 2 and sliding cover 3. Therefore, the angle of the chute assembly 1 does not change, reducing the collision of materials with the chute wall during the descent and reducing joint wear. This allows the use of a rigid joint between the two sections of powder conveying equipment on the movable steel approach bridge 10 and the shore connection facility 11. The joint material is changed from a soft material to steel, resolving the shortcomings of soft joints such as low strength and poor wear resistance, thereby increasing the joint's service life.

[0019] See also Figure 3 This is a typical use case of the present invention. In a bulk cement pontoon 9 floating dock project in the middle and upper reaches of the Yangtze River, the water level difference is 12.7m. The pontoon 9 is connected to the shore connection facility 11 through a 42m movable steel approach bridge 10. The movable steel approach bridge 10 and the shore connection facility 11 are equipped with two sections of powder conveying equipment. When the water level changes, one end of the movable steel approach bridge 10 floats up and down with the pontoon 9, and there are vertical, horizontal and angular displacements between the interfaces of the two sections of powder conveying equipment. The present invention is set between the two sections of powder conveying equipment, and the expansion and contraction amount, sliding distance and rotation angle are designed accordingly according to the water level difference. It is used to replace the existing flexible joint, which can increase the service life of the joint.

[0020] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are protected by the present invention.

Claims

1. A rigid joint for a powder material conveying system on a movable steel approach bridge, comprising an upper section powder material conveying device and a lower section powder material conveying device, characterized in that: A hopper group is provided above the lower section powder conveying equipment, a guide rail is provided above the hopper group, a roller is provided between the hopper group and the guide rail, a sliding cover is provided above the guide rail, a chute group is provided above the sliding cover through a hinge support, the chute group includes a fixed chute, a pin shaft and a telescopic chute, the fixed chute is connected to the telescopic chute through a pin shaft, the telescopic chute is provided on the hinge support, and the fixed chute is provided below the upper section powder conveying equipment.

2. The rigid joint of the powder material conveying system on the movable steel approach bridge according to claim 1 is characterized in that: The telescopic chute can be telescoped up and down.

3. The rigid joint of the powder material conveying system on the movable steel approach bridge according to claim 1 is characterized in that: The telescopic chute and the sliding cover can rotate around the hinge support.

Images