CN110201806A - Cyclone overflow complementary energy recovery device - Google Patents

Abstract

The cyclone overflow residual energy recovery device of the present invention belongs to the technical field of residual energy power generation; it provides a device that can effectively recover overflow residual energy without affecting the separation effect; the technical solution adopted is: a cyclone The overflow residual energy recovery device of the overflow device includes a cyclone, and the cyclone includes an overflow chamber. The overflow chamber is provided with a vertical overflow pipe. The top of the overflow pipe is connected with a variable-diameter flange. The variable-diameter method The diameter of the flange gradually increases from bottom to top, and an impeller is installed inside the variable diameter flange. The impeller is connected to the generator through the rotating shaft, and the ore pulp entering from the feed port pushes the impeller upward through the overflow pipe to drive the generator to generate electricity. ; The present invention can be widely used in the field of energy saving of coal preparation plants and mineral processing plants.

Description

Hydrocyclone overflow residual energy recovery device

technical field

The invention discloses a cyclone overflow residual energy recovery device, which belongs to the technical field of residual energy power generation.

Background technique

Residual energy recovery mainly includes the recovery of residual pressure, heat energy and kinetic energy. Among them, kinetic energy recovery and utilization is mainly kinetic energy hydropower generation in the traditional sense, a hydropower generation technology that makes full use of the natural flow of rivers and tides through underwater turbines. A recovery device for vertical wave energy invented by Zhang Yaochen, a device for recovery and utilization of driving kinetic energy invented by Zhang Wei, and a device for generating electricity from residual water kinetic energy invented by Li Hanmin are all good methods for recovering kinetic energy.

The hydrocyclone is a compact and efficient centrifugal separation equipment, which requires a certain feeding pressure to achieve high-efficiency separation, and the energy consumption of the feeding is relatively large. After the material is separated, the paddle body at the overflow outlet still maintains a considerable The kinetic energy contained in the tangential velocity and certain axial velocity is quite considerable. At present, this part of energy is directly dissipated and wasted. If this part of energy can be recovered, stored or recycled, it will be of great help to reduce the cyclone separation. The energy consumption of equipment (hydraulic grading cyclone, dense medium separation cyclone, cyclone dust collector, etc.) is of great significance.

The small hydroelectric generator developed by Fan Wanbai is driven by double impellers with high speed ratio to realize the high-efficiency conversion of water energy into electric energy. It is small in size, simple in structure, and easy to assemble and disassemble. The part of the device in contact with water is made of corrosion-resistant and non-polluting materials. It has no impact on water quality when used, and has the characteristics of low-carbon and environmental protection. The small faucet generator developed by Liu Shihao and other scholars impacts the blade fan of the water wheel under the condition of large water flow, and then drives the water wheel to move, so that the potential energy of the water is converted into the mechanical energy of the water wheel rotation, so it is connected coaxially with the water wheel The rotor of the generator starts to rotate, and then the mechanical energy is converted into electrical energy, and the electrical energy is processed and output and utilized. But at present, the energy-saving measures of ore preparation plants and coal preparation plants using cyclones are still focused on process optimization and management measures, and there is still a lot of shortage in recovering residual energy through equipment improvement and innovation.

Contents of the invention

The overflow residual energy recovery device of the cyclone overcomes the shortcomings of the prior art and provides a device capable of effectively recovering the overflow residual energy without affecting the separation effect.

In order to solve the above technical problems, the technical solution adopted by the present invention is: a cyclone overflow residual energy recovery device, including a cyclone, the cyclone includes an overflow chamber, and a vertical overflow pipe is arranged in the overflow chamber , the top of the overflow pipe is connected with the variable diameter flange, and the diameter of the variable diameter flange gradually increases from bottom to top. An impeller is arranged inside the variable diameter flange, and the impeller is connected with the generator through the rotating shaft. The ore pulp that enters through the overflow pipe pushes up the impeller to drive the generator to generate electricity.

Further, the generator is arranged above the overflow chamber, the generator is connected to a storage battery, and the storage battery stores the generated electric energy.

Further, the reducing flange is fixedly connected to the overflow pipe through bolts and washers.

Further, the top of the overflow chamber is provided with a cover, the top of the cover is provided with a sealing cover, the cover and the sealing cover are provided with an opening for the passage of the rotating shaft, the opening is provided with a tapered roller bearing, and the tapered roller The lower end of the sub-bearing is provided with a ring of bearing sealing rings, and the inner edge of the tapered roller bearing is connected with the rotating shaft.

Further, the axis of the rotating shaft is on the same axis as the central axis of the overflow pipe.

Compared with the prior art, the present invention has the following beneficial effects.

The device of the present invention can simply and effectively recover the residual kinetic energy of the overflow slurry, reduce the energy consumption of the sorting and grading process, highlight the realization of energy saving and emission reduction of coal preparation plants and mineral processing plants through equipment optimization, and is no longer limited to the optimization of process and management measures.

Description of drawings

Fig. 1 is a schematic diagram of the half-section structure of the device of the present invention.

Fig. 2 is a schematic diagram of the central rotating shaft provided by the present invention.

Fig. 3 is a schematic structural view of the upper part of the cyclone overflow chamber provided by the present invention.

Fig. 4 is a partially enlarged view of I in Fig. 3 .

In the figure, 1-feed inlet, 2-overflow chamber, 3-overflow pipe, 4-variable diameter flange, 5-impeller, 6-cover, 7-tapered roller bearing, 8-generator, 9 -battery, 10-rotating shaft, 11-sealing cover, 12-bearing sealing ring, 13-overflow nozzle, 14-washer.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1 and Figure 2, a cyclone overflow residual energy recovery device of the present invention includes a cyclone, the cyclone includes an overflow chamber 2, and a vertical overflow pipe is arranged in the overflow chamber 2 3. The top of the overflow pipe 3 is connected to the variable diameter flange 4, and the diameter of the variable diameter flange 4 gradually increases from bottom to top. An impeller 5 is arranged inside the variable diameter flange 4, and the impeller 5 passes through the rotating shaft 10 Connected with the generator 8, the pulp entering from the inlet 1 pushes the impeller 5 upwards through the overflow pipe 3 to drive the generator 8 to generate electricity, and the separated or sorted pulp flows out from the overflow pipe 13. The reducing flange 4 appropriately enlarges the diameter of the overflow pipe 3 so as to reduce the influence of the impeller 5 on the inner flow section of the swirler. The variable-diameter flange 4 only has amplifying effect when the caliber of the overflow pipe 3 is small, and does not need to be amplified when the caliber of the overflow pipe is large. The outer diameter of the impeller 5 is slightly smaller than the inner diameter of the overflow pipe 3, and it fits the pipe wall as much as possible to collect the residual kinetic energy of the slurry to the greatest extent.

The generator 8 is arranged above the overflow chamber 2, and the generator 8 is connected with the accumulator 9, and the accumulator 9 stores the electric energy generated. The reducing flange 4 is fixedly connected with the overflow pipe 3 through bolts and washers 14 .

As shown in Figure 3 and Figure 4, the top of the overflow chamber 2 is provided with a cover 6, and the top of the cover 6 is provided with a sealing cover 11, and the cover 6 and the sealing cover 11 are provided with an opening for the passage of the rotating shaft 10, and the opening Tapered roller bearing 7 is provided at the place, and the lower end of tapered roller bearing 7 is provided with a ring bearing sealing ring 12, prevents slurry from flowing into bearing. The inner edge of the tapered roller bearing 7 is connected with the rotating shaft 10 . The tapered roller bearing 7 prevents the shaft 10 from moving axially. The axis of the rotating shaft 10 is on the same axis as the central axis of the overflow pipe 3 . The cover 6 is mainly used to replace the impeller and adjust the position of the impeller, and can also be used to observe and detect the situation in the overflow chamber in a shutdown state. The sealing cover 11 is fixed on the top of the overflow chamber by screws, and at the same time, the sealing cover 6 and the tapered roller bearing 7 are fixed.

The invention mainly installs an overflow residual energy recovery device at the outlet of the overflow pipe under the premise of ensuring the sorting and grading effect of the cyclone to recover the residual kinetic energy of the liquid at the overflow. The device of the present invention is implemented on a cyclone with an overflow chamber. The discharge port of the overflow pipe is appropriately enlarged, and an impeller is placed at the enlarged place. The rotating and rising pulp in the overflow pipe drives the impeller to rotate, and the shaft of the impeller exits the overflow chamber. It is directly connected to the generator, and the generator sends the electric energy to the battery for storage and reuse.

While the invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that changes may be made in form and detail without departing from the spirit and scope of the invention as defined by the claims. various changes.

Claims (5)

1. A cyclone overflow residual energy recovery device, including a cyclone, the cyclone includes an overflow chamber (2), and a vertical overflow pipe (3) is arranged in the overflow chamber (2). The feature is that: the top of the overflow pipe (3) is connected to the variable diameter flange (4), the diameter of the variable diameter flange (4) gradually increases from bottom to top, and the internal design of the variable diameter flange (4) There is an impeller (5), and the impeller (5) is connected to the generator (8) through the rotating shaft (10). The pulp entering from the feed port (1) pushes the impeller (5) upwards through the overflow pipe (3) to drive the generator (8) Generate electricity. 2. The cyclone overflow residual energy recovery device according to claim 1, characterized in that: the generator (8) is arranged above the overflow chamber (2), and the generator (8) It is connected with the storage battery (9), and the storage battery (9) stores the generated electric energy. 3. The cyclone overflow residual energy recovery device according to claim 1, characterized in that: the reducing flange (4) is fixedly connected to the overflow pipe (3) by bolts and washers (14) . 4. The cyclone overflow residual energy recovery device according to claim 1, characterized in that: the top of the overflow chamber (2) is provided with a cover (6), and the top of the cover (6) is provided with The sealing cover (11), the sealing cover (6) and the sealing cover (11) are provided with an opening for the passage of the rotating shaft (10), the opening is provided with a tapered roller bearing (7), and the tapered roller bearing (7) A ring of bearing sealing rings (12) is provided at the lower end of the bearing, and the inner edge of the tapered roller bearing (7) is connected with the rotating shaft (10). 5. The cyclone overflow residual energy recovery device according to any one of claims 1-4, characterized in that: the axis of the rotating shaft (10) is on the same axis as the central axis of the overflow pipe (3) superior.