CN205806787U - A kind of filling slurry pipeline drag device - Google Patents

Abstract

A device for increasing the resistance of a filling slurry pipeline, comprising a resistance increasing chamber, a damping chamber, a driving blade, a follower blade, a connecting shaft, a bearing and a damping liquid, the two sides of the resistance increasing chamber are fixed on the filling slurry pipeline; The damping chamber is installed on the upper part of the resistance chamber and filled with damping fluid; the connecting shaft is fixed on the resistance chamber and the damping chamber through bearings; the active blade and the follower blade are installed on the connecting shaft, and the active blade is located on the In the damping chamber, the follower vane is located in the damping chamber. The filling slurry pipeline resistance increasing device has the characteristics of simple and reliable structure, convenient use, easy maintenance and replacement, low equipment cost and can automatically adjust pipeline resistance and flow velocity to a certain extent.

Description

A resistance increasing device for filling slurry pipeline

technical field

The utility model relates to the field of mine filling slurry transportation, in particular to a resistance increasing device for a paste transportation pipeline.

Background technique

With the continuous exploitation of resources, most of the mines are mined in deep mines. During deep mines, the height difference of the mine filling slurry transportation pipeline is getting larger and larger, while the resistance of the pipeline is small, so the excessive height difference will cause pipeline transportation. Excessive pressure will adversely affect the safety of the pipeline transportation system, pipeline wear, operating costs, etc. Ordinary liquid transportation pipelines usually increase the resistance by adding energy-dissipating orifice plates. The principle of energy-dissipating orifice plates is to aggravate the local turbulent flow of slurry to increase resistance, while filling slurry is mostly structured flow, so energy-dissipating orifice plates are not suitable for Filling slurry increases resistance. At present, it is widely used in filling pipes to decompress through methods such as variable diameter pipe transportation, return pipe transportation, and spiral pipe transportation. However, these methods generally require additional equipment and equipment foundations and require a large working space. Increase the difficulty and cost of making and installing.

Contents of the invention

The purpose of the utility model is to overcome the above shortcomings of the prior art and provide a filling slurry pipeline resistance increasing device, which has the characteristics of simple and reliable structure, convenient use, easy maintenance and replacement, and low equipment cost.

In order to achieve the above object, the technical solution of the present invention is: the filling slurry pipeline resistance increasing device includes a resistance increasing chamber, a damping chamber, a driving vane, a follower vane, a connecting shaft, a bearing and a damping fluid, and the resistance increasing Both sides of the chamber are fixed on the filling slurry pipeline; the damping chamber is installed on the upper part of the resistance increasing chamber and filled with damping liquid; the connecting shaft is fixed on the resistance increasing chamber and the damping chamber through bearings; The moving blade is installed on the connecting shaft, and the driving blade is located in the resistance increasing chamber, and the follower blade is located in the damping chamber.

Further, the connecting shaft is an integrally formed rotating shaft, or is composed of a driving shaft and a follower shaft connected by a friction coupling; the drive shaft is installed in a resistance increasing chamber, and the follower shaft is installed in a damping chamber .

Further, the active blade adopts a curved surface structure in which the concave surface on the forward rotation side faces the water to increase the resistance, and the convex surface on the counter-flow rotation side meets the water to reduce the resistance. The number of the active blades is 4 to 8 and they are evenly distributed along the connecting axis.

Further, the follower blades include 4 to 8 linear blades evenly distributed along the connecting shaft.

Further, the upper end and the lower end of the damping chamber are respectively provided with a filling hole, an external drainage hole and a liquid level observation window, and the damping liquid is increased or decreased through the filling hole and the external drainage hole, so that the damping of the resistance increasing device is increased or decreased. decrease.

Further, the upper and lower ends of the resistance increasing chamber and the damping chamber are respectively provided with bearing seats for installing bearings.

Further, sealing ring grooves for installing sealing rings are respectively provided on both sides of the bearing seat.

The beneficial effects of the utility model:

1. The utility model can effectively increase the local resistance of the pipeline filled with slurry, and the faster the flow velocity increases, the greater the resistance, so that the pipeline resistance and flow velocity can be automatically adjusted to a certain extent; and it has simple and reliable structure, convenient use, and low equipment cost low characteristic

2. The resistance-increasing chamber and the damping chamber of the utility model adopt a split design, which is convenient for the disassembly and maintenance of the damping chamber and the replacement of damping chambers with different damping;

3. The drive shaft and the follower shaft of the utility model are connected through a friction coupling, which has the functions of buffering, vibration reduction and overload protection, and can significantly improve the service life of the drive shaft and the follower shaft, and It can ensure that the active blade can continue to rotate when the follower blade fails and gets stuck;

4. The damping chamber of the utility model is provided with a filling hole and an external discharge hole to control the content of the damping liquid, thereby realizing the adjustment of the damping size of the damping chamber.

Description of drawings

Fig. 1 is the structural representation of the utility model in embodiment 1;

Fig. 2 is the sectional structure schematic diagram of the resistance increasing chamber of the present utility model in embodiment 1;

Fig. 3 is the sectional structure schematic diagram of the damping chamber of the present utility model in embodiment 1;

Fig. 4 is the structural representation of the utility model in embodiment 2;

Fig. 5 is the sectional structure schematic diagram of the resistance increasing chamber of the present utility model in embodiment 2;

Fig. 6 is a schematic cross-sectional structure diagram of the damping chamber of the present invention in embodiment 2.

In the figure: 1—filling slurry pipeline, 2—resistance increasing chamber, 3—bearing, 4—sealing ring, 5—connecting shaft, 6—driving blade, 7—external discharge hole, 8—filling hole, 9—with Moving vane, 10—damping chamber, 11—damping fluid, 12—driving shaft, 13—following shaft, 14—friction coupling.

detailed description

The utility model is described in further detail below in conjunction with the accompanying drawings.

Example 1

Referring to accompanying drawings 1 to 3: the filling slurry pipeline resistance increasing device includes a resistance increasing chamber 2, a damping chamber 10, a driving blade 6, a follower blade 9, a connecting shaft 5, a bearing 3, and a damping fluid 11; Both sides of the resistance chamber 2 are fixed on the filling slurry pipeline 1; the damping chamber 10 is installed on the upper part of the resistance chamber 2 and filled with damping fluid 11; the connecting shaft 5 is fixed on the resistance chamber 2 and the damping chamber 2 through the bearing 3 The active vane 6 and the follower vane 9 are installed on the connecting shaft 5 , and the active vane 6 is located in the resistance increasing compartment 2 , and the follower vane 9 is located in the damping compartment 10 .

The connecting shaft 5 is an integrally formed rotating shaft installed in the damping chamber 10, and has the characteristics of simple structure and easy processing.

The active blade 6 adopts a curved surface structure in which the concave surface of the downstream rotation side faces the water to increase the resistance, and the convex surface of the counter-flow rotation side faces the water to reduce the resistance. The number of them is 6 and is evenly distributed along the connecting shaft 5. The smooth rotation driven by the slurry can also effectively increase the absorption of the kinetic energy of the slurry by the active blade 6 .

The follower vane 9 includes 6 linear vanes evenly distributed along the connecting shaft 5, which can significantly improve the damping of the drag increasing device.

The upper end and the lower end of the damping chamber 10 are respectively provided with a filling hole 8, an outer discharge hole 7 and a liquid level observation window, and the damping liquid 11 is increased or decreased through the filling hole 8 and the outer discharge hole 7, so that the entire resistance increasing device The damping increases or decreases.

The upper and lower ends of the resistance increasing chamber 2 and the damping chamber 10 are respectively provided with bearing seats for installing the bearing 3 , and sealing ring grooves for installing the sealing ring 4 are respectively arranged on both sides of the bearing seats.

Example 2:

Compared with Example 1, the filling slurry pipeline resistance increasing device of this example has the following differences:

Referring to accompanying drawings 3-6: the connecting shaft 5 is composed of a driving shaft 12 and a follower shaft 13 connected by a friction coupling 14; the drive shaft 12 is installed in the resistance increasing chamber, and the follower shaft 13 is In the damping chamber, the split structure of the connecting shaft 5 facilitates the disassembly and maintenance of the damping chamber 10 and the replacement of the damping chamber 10 with different damping.

The friction coupling 14 has the functions of buffering, vibration reduction and overload protection, can significantly improve the service life of the driving shaft 12 and the follower shaft 13, and can ensure that the drive vane 6 is stuck when the follower vane 9 breaks down. Can continue to spin.

The number of blades of the driving blades 6 and the follower blades 9 is set to 8, and the increase of the number of blades can obviously improve the resistance increasing capability of the whole device.

The working principle and usage method of the utility model filling slurry pipeline 1 resistance increasing device: the slurry flows in from the left side of the filling slurry pipeline 1 and flows out from the right side, and after entering the resistance increasing chamber 2, pushes the active blade 6 to rotate counterclockwise, pushing The active blade 6 consumes the energy of the slurry during the process, thereby achieving increased resistance; the driving shaft 12 and the follower shaft 13 are connected through a friction coupling 14, so that the drive blade 6 fixed on the drive shaft 12 drives and is fixed on the follower shaft. When the follower vane 9 on the moving shaft 13 rotates, the damping liquid 11 in the damping chamber 10 greatly increases the movement resistance of the follower vane 9, thereby increasing the energy consumption for driving the drive vane 6 to rotate, thereby increasing the resistance ; The faster the slurry flow rate, the faster the blades rotate, and the greater the resistance of the damping fluid 11. Moreover, the content of the damping fluid 11 can be controlled through the filling hole 8 and the discharge hole 7 on the damping chamber 10, so as to realize the adjustment of the damping size of the drag increasing device.

The above-mentioned embodiments are only to illustrate the technical conception and characteristics of the present utility model. Equivalent changes or modifications made by the spirit of the present utility model shall be covered within the protection scope of the present utility model.

Claims (7)

1. A filling slurry pipeline resistance increasing device is characterized in that it comprises a resistance increasing chamber, a damping chamber, a driving blade, a follower blade, a connecting shaft, a bearing and a damping liquid, and the two sides of the resistance increasing chamber are fixed on the filling material on the slurry pipeline; the damping chamber is installed on the upper part of the resistance-increasing chamber and filled with damping liquid; the connecting shaft is fixed on the resistance-increasing chamber and the damping chamber through bearings; the active blade and the follower blade are installed on the connecting shaft , and the active vane is located in the resistance increasing chamber, and the follower vane is located in the damping chamber. 2. The filling slurry pipeline resistance increasing device according to claim 1, characterized in that, the connecting shaft is an integrally formed rotating shaft, or is composed of a driving shaft and a driven shaft connected by a friction coupling; The shaft is installed in the resistance increasing chamber, and the follower shaft is installed in the damping chamber. 3. The device for increasing the resistance of the filling slurry pipeline according to claim 1, wherein the active vane adopts a curved surface structure in which the concave surface of the downstream rotating side faces the water to increase the resistance, and the convex surface of the counter-current rotating side faces the water to reduce the resistance, and the number thereof is 4 to 8 pieces and evenly distributed along the connecting axis. 4 . The resistance increasing device for filling slurry pipelines according to claim 1 , wherein the follower vanes include 4 to 8 linear vanes evenly distributed along the connecting axis. 5. The resistance increasing device for filling slurry pipelines according to claim 1, characterized in that, the upper end and the lower end of the damping chamber are respectively provided with a filling hole, an outer discharge hole and a liquid level observation window. 6. The resistance increasing device for filling slurry pipeline according to claim 1, characterized in that, the upper and lower ends of the resistance increasing chamber and the damping chamber are respectively provided with bearing seats for installing bearings. 7 . The resistance increasing device for filling slurry pipelines according to claim 6 , wherein sealing ring grooves for installing sealing rings are respectively arranged on both sides of the bearing seat. 8 .