Sling transportation device

By designing a sling transport device, using pulleys and electric hoists to achieve rapid equipment transfer and precise positioning, the problem of low construction efficiency in the denitrification system of the power industry was solved, safety risks were reduced, and work efficiency and safety were improved.

CN224118622UActive Publication Date: 2026-04-14POWER CHINA HENAN ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
POWER CHINA HENAN ENG CO LTD
Filing Date
2025-06-04
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In denitrification systems in the power industry, the construction efficiency of ammonia injection grids and static mixers is low and there are safety risks, especially the problems caused by frequent personnel crossing and high-altitude operations in narrow and complex flues.

Method used

Design a sling transport device that uses pulleys on a wire rope and supports below the pulleys to achieve rapid transfer and precise positioning of the equipment using a first electric hoist and a second electric hoist, thus simplifying the operation process.

Benefits of technology

It improves the efficiency of equipment installation, reduces the burden on staff, lowers construction safety risks, and is simple and easy to operate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sling transportation device which comprises a first cross rod and a second cross rod, a first support is vertically arranged above the first cross rod, the upper end of the first support is connected with a first sliding rod through a first electric hoist, the first sliding rod is connected with the first support in a sliding mode, a second support is arranged above the second cross rod, and the second support is connected with a second sliding rod through a second electric hoist. The top of the second support is connected with a second sliding rod through a second electric hoist, a steel wire rope is arranged between the first sliding rod and the second sliding rod, a pulley is arranged on the steel wire rope, and the pulley is connected with the supporting plate through a connecting frame. The pulley is arranged on the steel wire rope, and the supporting plate is connected below the pulley through the connecting frame, so that a worker can move equipment needing to be installed to an installation position by means of the steel wire rope; and workers can conveniently and rapidly install the equipment, the working efficiency is improved, the burden of the workers is relieved, use is convenient, and operation is easy.
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Description

Technical Field

[0001] This utility model relates to a transportation tool, and more particularly to a sling transportation device, belonging to the field of equipment hoisting technology. Background Technology

[0002] In denitrification systems within the power industry, ammonia injection grids and static mixers are key equipment used to evenly distribute and mix ammonia into the flue gas for effective removal of nitrogen oxides. As the equipment operates over time, the performance of the ammonia injection grids and static mixers gradually declines, requiring regular replacement and installation to ensure the efficient operation of the denitrification system. Due to the confined space and complex environment within the flue, construction requires a significant amount of manpower to work back and forth within the flue. Each unit typically has three to four hundred ammonia injection grids and static mixers, necessitating frequent crossings of internal supports for installation and welding. Furthermore, the welding of the ammonia injection grids must be completed before the installation of the static mixers can proceed. This sequential constraint leads to low construction efficiency and consumes substantial time and effort; simultaneously, the frequent crossings of internal supports and high-altitude work increase construction safety risks. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a sling transport device. By setting pulleys on the wire rope and setting support plates below the pulleys, the device can quickly transfer equipment in batches, improve work efficiency, reduce the burden on workers, and is convenient and easy to use.

[0004] The technical solution adopted by this utility model to solve the technical problem is:

[0005] A sling transport device includes a first crossbar, a second crossbar, a first electric hoist, and a second electric hoist. The first crossbar is disposed on one side of a flue, and the second crossbar is disposed on the other side of the flue. A first support is vertically disposed above the first crossbar, and a first sliding rod is connected to the upper end of the first support via the first electric hoist. The first sliding rod is slidably connected to the first support. A second support is disposed above the second crossbar, and a second sliding rod is connected to the top of the second support via the second electric hoist. The second sliding rod is slidably connected to the second support. A wire rope is disposed between the first and second sliding rods, and a pulley is disposed on the wire rope. The pulley is connected to a support plate via a connecting frame.

[0006] Rollers are provided at the four corners of the bottom of the support plate, and lifting lugs are provided at the four corners of the top of the support plate. The lifting lugs are connected to a connecting frame by hooks, and pulleys are provided at the top of the connecting frame.

[0007] There are two connecting frames, and each connecting frame is connected to a pulley at the top.

[0008] The first crossbar and the second crossbar are two identical support rods, and screw rods are threadedly connected to both ends of the first crossbar and the second crossbar.

[0009] End blocks are respectively provided above the ends of the first and second crossbars, and the end blocks are fixedly connected to the wall of the flue by bolts.

[0010] The first support is L-shaped, and displacement tracks are provided on both sides of the first support. The first slide rod is slidably connected to the displacement tracks.

[0011] The second support is U-shaped, with displacement tracks on both sides of the second support, and the second slide rod is slidably connected to the second support.

[0012] The positive and beneficial effects of this utility model are:

[0013] 1. This utility model features threaded screws at both ends of the first and second crossbars. Rotating the screws tightens them against the flue wall, thus fixing the crossbars. The first and second electric hoists allow for the raising and lowering of the wire rope, facilitating the loading of equipment onto the support plate. It is convenient to use and easy to operate.

[0014] 2. This utility model, by setting pulleys on steel wire ropes and connecting support plates below the pulleys via connecting frames, allows workers to move the equipment to be installed to the installation position using the steel wire ropes; at the same time, by using a first electric hoist and a second electric hoist, the equipment to be installed can be lowered to the required installation height, thereby improving work efficiency and reducing the burden on workers. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the second crossbar of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the first crossbar of this utility model;

[0018] Figure 4 This is a schematic diagram of the support plate of this utility model;

[0019] Wherein: 1-First crossbar, 2-Second crossbar, 3-Screw, 4-End block, 5-First bracket, 6-Second bracket, 7-First slide bar, 8-Second slide bar, 9-First electric hoist, 10-Second electric hoist, 11-Wire rope, 12-Pulley, 13-Connecting frame, 14-Hook, 15-Support plate, 16-Roller. Detailed Implementation

[0020] The present invention will be further explained and described below with reference to the accompanying drawings:

[0021] See the example. Figures 1-4 A sling transport device includes a first crossbar 1, a second crossbar 2, a first electric hoist 9, and a second electric hoist 10. The first crossbar 1 is located on one side of the flue, and the second crossbar 2 is located on the other side of the flue. A first support 5 is vertically arranged above the first crossbar 1. A first sliding rod 7 is connected to the upper end of the first support 5 via the first electric hoist 9. The first sliding rod 7 is slidably connected to the first support 5. A second support 6 is arranged above the second crossbar 2. A second sliding rod 8 is connected to the top of the second support 6 via the second electric hoist 10. The second sliding rod 8 is slidably connected to the second support 6. A wire rope 11 is arranged between the first sliding rod 7 and the second sliding rod 8. A pulley 12 is arranged on the wire rope 11. The pulley 12 is connected to the support plate 15 via a connecting frame 13.

[0022] Rollers 16 are provided at the four corners of the bottom of the support plate 15, and lifting lugs are provided at the four corners of the top of the support plate 15. The lifting lugs are connected to the connecting frame 13 by hooks 14, and pulleys 12 are provided at the top of the connecting frame 13.

[0023] There are two connecting brackets 13, and a pulley 12 is connected to the top of each connecting bracket 13.

[0024] The first crossbar 1 and the second crossbar 2 are two identical support rods, and screw rods 3 are threadedly connected to both ends of the first crossbar 1 and the second crossbar 2 respectively.

[0025] End blocks 4 are respectively installed above the ends of the first horizontal bar 1 and the second horizontal bar 2. The end blocks 4 are fixedly connected to the wall of the flue by bolts.

[0026] The first support 5 is L-shaped, and displacement tracks are provided on both sides of the first support 5. The first slide rod 7 is slidably connected to the displacement track.

[0027] The second support 6 is U-shaped, with displacement tracks on both sides of the second support 6, and the second slide rod 8 is slidably connected to the second support 6.

[0028] In the above description, the second support is distributed in a U-shape, and the width of the second support is greater than the width of the flue inlet.

[0029] In the above description, the first electric hoist is located at the bottom of the top of the first support; the second electric hoist is located at the bottom of the top of the second support.

[0030] In the above description, the two ends of the crossbar are pressed against the inner wall of the flue by screws, and the end blocks are fixedly connected to the flue wall by bolts.

[0031] In the above description, the pulley consists of a U-shaped frame and two wheels. One wheel is installed above and one below the wire rope, and the two wheels are rotatably connected to the inner wall of the U-shaped frame.

[0032] Working principle:

[0033] In use, place the equipment or parts to be installed on the support plate, then use the first and second electric hoists to lower the connecting frame and connect it to the lifting lugs at the four corners of the support plate via hooks. Then use the first and second electric hoists to raise the support plate, and then the pulleys move horizontally along the wire rope until the support plate moves to the installation position. Finally, use the first and second electric hoists to raise and lower the support plate to the installation position.

[0034] This invention features a pulley mounted on a wire rope, with a support plate connected to the pulley via a connecting frame. Workers can use the wire rope to move the equipment to the installation position. Simultaneously, a first and a second electric hoist lower the equipment to the desired installation height, facilitating quick installation, improving work efficiency, reducing worker workload, and providing convenient and simple operation.

Claims

1. A sling transport device, comprising a first crossbar (1), a second crossbar (2), a first electric hoist (9), and a second electric hoist (10), characterized in that: The first crossbar (1) is set on one side of the flue, and the second crossbar (2) is set on the other side of the flue. A first support (5) is vertically set above the first crossbar (1). The upper end of the first support (5) is connected to a first sliding rod (7) through a first electric hoist (9). The first sliding rod (7) is slidably connected to the first support (5). A second support (6) is set above the second crossbar (2). The top of the second support (6) is connected to a second sliding rod (8) through a second electric hoist (10). The second sliding rod (8) is slidably connected to the second support (6). A wire rope (11) is set between the first sliding rod (7) and the second sliding rod (8). A pulley (12) is set on the wire rope (11). The pulley (12) is connected to the support plate (15) through a connecting frame (13).

2. The sling transport device according to claim 1, characterized in that: Rollers (16) are provided at the four corners of the bottom of the support plate (15), and lifting lugs are provided at the four corners of the top of the support plate (15). The lifting lugs are connected to the connecting frame (13) by hooks (14), and pulleys (12) are provided at the top of the connecting frame (13).

3. The sling transport device according to claim 2, characterized in that: There are two connecting frames (13), and a pulley (12) is connected to the top of each connecting frame (13).

4. The sling transport device according to claim 1, characterized in that: The first crossbar (1) and the second crossbar (2) are two identical support rods, and screw rods (3) are threadedly connected to both ends of the first crossbar (1) and the second crossbar (2).

5. A sling transport device according to claim 1, characterized in that: The first crossbar (1) and the second crossbar (2) are respectively provided with end blocks (4) on the top of their ends. The end blocks (4) are fixedly connected to the wall of the flue by bolts.

6. A sling transport device according to claim 1, characterized in that: The first support (5) is L-shaped, and displacement tracks are provided on both sides of the first support (5). The first slide rod (7) is slidably connected to the displacement tracks.

7. A sling transport device according to claim 1, characterized in that: The second support (6) is U-shaped, and displacement tracks are provided on both sides of the second support (6). The second slide rod (8) is slidably connected to the second support (6).