Novel pneumatic lifting device

Abstract

The utility model provides a novel pneumatic lifting device, which relates to the field of fluid transportation machinery and comprises a material receiving chamber, a first pipe orifice is connected above the material receiving chamber, a second pipe orifice and a third pipe orifice are respectively arranged on two sides of the first pipe orifice, the first pipe orifice is provided with a central lifting pipe through a flange plate, and the first pipe orifice is provided with a central lifting pipe through a flange plate. The top end of the center lifting pipe is connected with a material separation chamber, hardening of the material receiving chamber is prevented through the stirring air pipe, and the flange plates are convenient to assemble and disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid transportation machinery, in particular to a novel pneumatic lifting device. Background Art

[0002] Pneumatic lifting equipment refers to a complete set of equipment that uses compressed air to lift a solid-liquid mixture from the bottom of a pool to the ground along a pipeline. Pneumatic lifting equipment is used in industries such as metallurgy, mining, chemical industry, coal, silt removal and sand mining. Traditional new pneumatic lifting devices produce a large amount of solid-liquid two-phase mixture containing solid materials, and have the following defects during use and maintenance:

[0003] (1) The solid-liquid two-phase fluid will continuously wear out the equipment and pipelines along the line during transportation and transfer, reducing their service life. In addition, these solid materials will continue to deposit and harden, causing blockage in the receiving chamber and the conveying channel. When the equipment is placed for a long time or the amount of solid material deposited is large, the blockage will cause the new pneumatic lifting device to fail to start normally.

[0004] (2) When solid material blockage or compaction occurs again in the receiving chamber, the equipment needs to be hoisted out as a whole or the liquid in the pool needs to be emptied for manual cleaning, which has low cleaning efficiency and great difficulty. Utility Model Content

[0005] To achieve the above objectives, one or more embodiments of the present invention provide the following technical solutions.

[0006] The utility model proposes a novel pneumatic lifting device, including a receiving chamber, wherein a first pipe opening is connected to the top of the receiving chamber, a second pipe opening and a third pipe opening are respectively arranged on both sides of the first pipe opening, the first pipe opening is installed with a central lifting pipe through a flange, the second pipe opening is installed with a compressed air pipe through a flange, and the third pipe opening is installed with an agitating air pipe through a flange, and the top of the central lifting pipe is connected to a material separation chamber.

[0007] It is further configured that a water pipe is arranged on one side of the stirring air pipe, and a suction pipe is arranged below the receiving chamber.

[0008] It is further configured so that the end of the water pipe is flush with the lower end of the suction pipe.

[0009] It is further configured that the port of the central lifting pipe extends into the interior of the receiving chamber.

[0010] It is further configured that the central lifting pipe is opposite to the sealing shoe at the bottom of the receiving chamber.

[0011] It is further configured that the stirring air pipe, the central lifting pipe and the compressed air pipe are arranged in parallel.

[0012] It is further configured that the central lifting pipe is a reducing pipe.

[0013] It is further configured that the lower end of the suction pipe is located in the slag water pool.

[0014] It is further configured that a discharge port is obliquely provided on one side of the material separation chamber.

[0015] It is further configured that a sealing tile is provided at the top of the material separation chamber.

[0016] Beneficial effects of one or more of the above technical solutions:

[0017] (1) The stirring air pipe is connected to the receiving chamber and leads into the interior of the receiving chamber. When the slag is not lifted, a small amount of compressed air is introduced. After the compressed air is introduced, the material can flow stably, preventing the sedimentation and compaction of the slag in the lower structure of the air lift. While improving the working efficiency, it reduces wear and tear, thereby increasing the service life of the whole machine.

[0018] (2) The receiving chamber is located near the bottom of the tank and is connected to the central lifting pipe, compressed air pipe and stirring air pipe through the upper flange, and is connected to the suction pipe at the bottom. The pipes can be disassembled by disassembling the flange to facilitate daily maintenance and replacement, thereby improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings in the specification, which constitute a part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation on this application.

[0020] Figure 1 It is a structural diagram of the present utility model.

[0021] Figure 2 It is a cross-sectional view of the receiving chamber of the present utility model.

[0022] In the figure, 1 is the suction pipe; 2 is the receiving chamber; 3 is the material separation chamber; 4 is the central lifting pipe; 41 is the first pipe opening; 5 is the compressed air pipe; 51 is the second pipe opening; 6 is the water pipe; 7 is the sealing tile; 8 is the discharge port; 9 is the flange; 10 is the stirring air pipe; 101 is the third pipe opening. DETAILED DESCRIPTION

[0023] The specific implementation of this embodiment is described below with reference to the accompanying drawings.

[0024] A new type of pneumatic lifting device includes a receiving chamber 2, wherein the top of the receiving chamber 2 is connected to a first pipe opening, and a second pipe opening 51 and a third pipe opening 101 are respectively arranged on both sides of the first pipe opening 41. The first pipe opening is installed with a central lifting pipe 4 through a flange 9 plate, the second pipe opening 51 is installed with a compressed air pipe 5 through a flange 9 plate, and the third pipe opening 101 is installed with a stirring air pipe 10 through a flange 9 plate. The top of the central lifting pipe 4 is connected to a material separation chamber 3, and the bottom of the receiving chamber 2 is connected to a suction pipe 1. The solid and liquid materials to be processed are drawn into the interior of the new type of pneumatic lifting device by compressed gas, pass through the suction pipe 1, the receiving chamber 2, and the central lifting pipe 4, and enter the top material separation chamber 3 to realize material separation; when in the non-slag lifting state, a small amount of compressed air is introduced to stir the slag-water mixture in the lower structure of the air lift to prevent the sedimentation and compaction of the slag in the receiving chamber and pipeline under the air lift.

[0025] A water pipe 6 is provided on one side of the stirring air pipe 10. The water pipe 6 can stir the slag-water mixture at the bottom of the pool to prevent the sedimentation and compaction of the slag at the bottom of the pool, but it cannot prevent the accumulation and compaction of slag inside the lower structure of the air lift, resulting in a shorter maintenance cycle of the air lift. Therefore, a stirring air pipe 10 is provided to pass into the interior of the receiving chamber. When the slag is not lifted, a small amount of compressed air is introduced to prevent the sedimentation and compaction of the slag in the lower structure of the air lift.

[0026] Reference Figure 1 and Figure 2 A suction pipe 1 is set below the central lifting pipe 4, and the solid and liquid materials to be processed are sucked into the interior of the new pneumatic lifting device through compressed gas. The solid and liquid materials first flow through the suction pipe 1.

[0027] The central lifting pipe 4 extends to the lower space through the first pipe opening 41. The central lifting pipe 4 is the air supply pipe during operation. The gas pressure energy is greater than the potential energy corresponding to the net lifting height + the process resistance loss + the kinetic energy required for the outlet mixture. The static pressure energy of the gas is converted into the kinetic energy of the liquid or liquid-solid mixture in the central lifting pipe 4, thereby sucking the mixture around the suction pipe 1 into the receiving chamber 2 and into the separation chamber 3 along with the central lifting pipe 4 to achieve the lifting of the material. When the compressed air pipe 5 stops working, in order to prevent the solid sedimentation and compaction of the solid entering the air lift head, the stirring air pipe 10 air supply pipe is started, and the gas is disturbed to prevent compaction, disturb the solid-liquid mixture, and keep a small flow or the mixture in a dynamic state to achieve the purpose of preventing head blockage.

[0028] The end of the water pipe 6 is level with the lower end of the suction pipe 1, stirring the slag-water mixture near the gas lift suction port at the bottom of the pool to help achieve a better lifting effect.

[0029] The end of the central lifting pipe 4 extends into the interior of the receiving chamber 2. The central lifting pipe 4 is opposite to the sealing tile 7 at the bottom of the receiving chamber 2 to ensure smooth flow of the fluid. The stirring air pipe 10, the central lifting pipe 4 and the compressed air pipe 5 are arranged in parallel for easy assembly and disassembly.

[0030] The central riser 4 can be a reducer. The central riser 4 serves as a material conveying channel to convey the material to the material separation chamber 3. It is a multi-stage reducer structure used to absorb the volume expansion of the conveying gas under different pressure states.

[0031] The lower end of the suction pipe 1 is located in the slag water pool, and a discharge port 8 is arranged obliquely on one side of the material separation chamber 3 for discharging liquid waste. A sealing tile 7 is arranged at the top of the material separation chamber 3. After being sucked into the separation chamber 3, the liquid overflows from the discharge port 8 and is discharged.

[0032] Working and maintenance process of the new pneumatic lifting device:

[0033] Working process: Open the water supply valve of the water pipe 6 to stir the solid-liquid two-phase material; then open the valve of the compressed air pipe 5 to introduce the solid-liquid two-phase material and the gas into the receiving chamber 2, and then to the central lifting pipe 4 and the material separation chamber 3, and realize the transportation of slag water in the material separation chamber 3.

[0034] Non-working process: close the valve of the compressed air pipe 5 and the water supply valve of the water pipe 6, open the valve of the stirring air pipe 10, and stir the slag-water mixture inside the air lift under the action of the compressed air supplied by the air pipe 10 to prevent the sedimentation and compaction of the slag inside the air lift.

[0035] Accident state: Due to the accident state, there is still a large amount of slag-water mixture at the bottom of the pool. At this time, close the compressed air pipe 5, open the water supply valve of the water pipe 6 to prevent the sedimentation and compaction of the slag at the bottom of the pool, and open the valve of the stirring air pipe 10 at the same time. Under the stirring of compressed air, the sedimentation and compaction of the slag inside the air lift can be prevented.

[0036] Maintenance or replacement process: cut off the compressed air and water sources, lift the new pneumatic lifting device out of the water, fix the suction pipe 1 with a temporary device, then open the upper and lower flanges of the receiving chamber 2, and then replace the receiving chamber 2 as a whole. Finally, remove the temporary fixing device, and the equipment can be put into use after it is in place.

[0037] Compared with the traditional new pneumatic lifting device, the structure of the receiving chamber of the present invention has been greatly changed. The present invention solves the problems of the traditional new pneumatic lifting device such as easy blockage of the receiving chamber 2 and low operating efficiency without affecting the use effect and greatly extending the maintenance cycle.

[0038] After setting up the stirring air pipe, it is recommended to close the air supply of the compressed air pipe 5 and open the stirring air pipe 10 when it is not in operation. The air supply of the stirring air pipe is recommended to be 1-5% of the air supply in the normal working state, so as to prevent the sedimentation and compaction of the slag in the lower part of the air lift while saving gas.

[0039] Although the above description of the specific implementation methods of the present invention is combined with the accompanying drawings, it does not limit the scope of protection of the present invention. Technical personnel in the relevant field should understand that on the basis of the technical solution of the present invention, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the present invention.

Claims

1. A new type of pneumatic lifting device, characterized in that: It includes a receiving chamber, which is connected to a first pipe opening above the receiving chamber, and a second pipe opening and a third pipe opening are respectively arranged on both sides of the first pipe opening. The first pipe opening is installed with a central lifting pipe through a flange, the second pipe opening is installed with a compressed air pipe through a flange, and the third pipe opening is installed with a stirring air pipe through a flange, and the top of the central lifting pipe is connected to a material separation chamber.

2. A novel pneumatic lifting device according to claim 1, characterized in that: A water pipe is arranged on one side of the stirring air pipe, and a suction pipe is arranged below the receiving chamber.

3. A novel pneumatic lifting device according to claim 2, characterized in that: The end of the water pipe is flush with the lower end of the suction pipe.

4. A novel pneumatic lifting device according to claim 1, characterized in that: The end of the central lifting pipe extends into the interior of the receiving chamber.

5. A novel pneumatic lifting device according to claim 1, characterized in that: The central lifting pipe is opposite to the sealing tile at the bottom of the receiving chamber.

6. A novel pneumatic lifting device according to claim 1, characterized in that: The stirring air pipe, the central lifting pipe and the compressed air pipe are arranged in parallel.

7. A novel pneumatic lifting device according to claim 1, characterized in that: The center riser is a reducer.

8. A novel pneumatic lifting device according to claim 1, characterized in that: The lower end of the suction pipe is located in the slag water pool.

9. A novel pneumatic lifting device according to claim 1, characterized in that: A discharge port is arranged obliquely on one side of the material separation chamber.

10. A novel pneumatic lifting device according to claim 1, characterized in that: A sealing tile is provided on the top of the material separation chamber.

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