A method for online replacement of fluidization rods

Abstract

This application is a method for online replacement of fluidizing rods, belonging to the field of fluidizing rods, and includes: closing the valve on the gas supply pipeline connected to the old fluidizing rod, and disconnecting the gas supply pipeline from the old fluidizing rod; determining the insertion position of the new fluidizing rod on the wall of the steel plate silo and marking it with a marker pen, and this position is arranged at an interval from the old fluidizing rod; using a cutting tool to cut an operation opening at the position corresponding to the insertion position of the fluidizing rod on the wall of the steel plate silo; using a drilling tool to drill a placement channel in the powder in the steel plate silo; placing the new fluidizing rod into the placement channel; blocking the cutting operation opening. Through the above technical solutions, the fluidizing rod can be replaced on the basis of the steel plate silo being filled with powder, achieving the purpose of online replacement of the fluidizing rod, using the new fluidizing rod to replace the old fluidizing rod to homogenize the material, achieving the purpose of smooth discharging, and avoiding the need to wait for the silo to be empty to replace the fluidizing rod when the old fluidizing rod is blocked or damaged, reducing the discharging difficulty during the process of waiting for the silo to be empty.

Description

Technical Field

[0001] The present invention relates to the field of fluidization rods, and particularly to a method for online replacement of fluidization rods. Background Art

[0002] The fluidization rod, also known as the gasification rod, is a key tool for discharging materials from steel plate silos and steel plate warehouses. It is generally installed at the bottom of the steel plate silo and steel plate warehouse near the discharge port, playing a role in homogenization. It uses the air discharged from the fluidization rod for stirring, and under the action of gravity, a funnel effect is generated, so that when the powdery material is discharged downward, it can cut multiple material surfaces as much as possible to make it fully mixed, causing different degrees of fluidization expansion effects on the parallel inclined planes inside the steel plate silo and steel plate warehouse, and regional fluidization, so as to achieve the purpose of smooth discharging. The structure of the fluidization rod generally includes a filter cloth and a stainless steel pipe. The filter cloth is wound on the surface of the stainless steel pipe. After long-term use, the filter cloth of the fluidization rod is prone to aging and damage, resulting in the phenomenon that the fluidization rod returns materials and causes blockage of the fluidization rod. The fluidization rod is generally installed after the construction of the steel plate silo and steel plate warehouse and before the materials are loaded, and is fixed by U-shaped clips. Therefore, after the steel plate silo is filled with materials, the fluidization rod cannot be replaced. Currently, it is only possible to replace the fluidization rod when the silo is empty, but the time when the silo is empty is uncertain. If most of the fluidization rods in the silo are aged or blocked, during the waiting time for the silo to be empty, the discharging difficulty of the entire steel plate silo and steel plate warehouse will be aggravated. Therefore, this application designs a method for online replacement of fluidization rods on the basis that the steel plate silo and steel plate warehouse store a large amount of powder materials to solve the above problems. Summary of the Invention

[0003] When there are materials in the steel plate silo and steel plate warehouse, the fluidization rod cannot be replaced and can only be replaced when the silo is empty, but the time when the silo is empty is uncertain. If most of the fluidization rods in the silo are aged or blocked, during the waiting time for the silo to be empty, the discharging difficulty will be increased. At least one object or aspect of this application can solve the above problems. Specifically, a method for online replacement of fluidization rods is designed, and the technical solution adopted is as follows:

[0004] A method for online replacement of fluidization rods includes the following steps:

[0005] a. Close the valve on the air supply pipeline connected to the old fluidization rod, and disconnect the air supply pipeline from the old fluidization rod;

[0006] b. Determine the insertion position of the new fluidization rod on the wall of the steel plate silo, and mark it with a marker pen. This position is set at an interval from the old fluidization rod;

[0007] c. Use a cutting tool to cut an operation opening at the position corresponding to the insertion position of the fluidization rod on the wall of the steel plate silo;

[0008] d. Use a drilling tool to drill a placement channel in the powder in the steel plate silo. This placement channel is arranged close to the old fluidization rod;

[0009] e. Place the new fluidizing rod into the placement channel. The rear end of the new fluidizing rod extends out of the cutting operation port and is connected to the main air supply pipe through another air supply pipe, and a switch valve is provided on this air supply pipe.

[0010] f. Seal the cutting operation port.

[0011] Preferably, between step d and step e, it also includes a detection step for the old fluidizing rod, that is, detect by whether the new fluidizing rod can be placed in the placement channel. If the new fluidizing rod cannot enter the placement channel, it is detected that the old fluidizing rod is not blocked, and the new fluidizing rod is not replaced. If the new fluidizing rod can easily enter the placement channel, it is detected that the old fluidizing rod is blocked, and the new fluidizing rod is replaced.

[0012] Preferably, the sealing of the cutting operation port in step f is realized by a sealing plate with a through hole in the center. The sealing plate is welded to the wall of the steel plate silo, and the new fluidizing rod passes through the through hole.

[0013] Preferably, the above-mentioned sealing plate is a disc.

[0014] Preferably, the diameter of the placement channel is 15 mm - 20 mm larger than the diameter of the new fluidizing rod.

[0015] Preferably, in step d, it is realized by a drilling pipe. A drill bit is provided at the front end of the drilling pipe, and the drill bit extends out of the front end of the drilling pipe. The rear end of the drilling pipe is connected with a negative pressure material suction device.

[0016] Preferably, the drilling pipe is arranged on a rotating chuck. The rotating chuck is slidably arranged on a fixed platform through its connected base. The drilling pipe is driven to rotate by the rotating chuck, and at the same time, the rotating chuck realizes forward and backward feeding by sliding on the fixed platform.

[0017] Preferably, the negative pressure material suction device includes a vacuum pump and a hose. One end of the hose is connected to the vacuum pump, and the other end is connected to the rear end of the drilling pipe.

[0018] Preferably, in step d, it is realized by a screw conveyor. One end of the screw conveyor is connected to a motor, and the motor is fixed on a moving seat.

[0019] Through the above technical solutions, the present invention can replace the fluidizing rod on the basis of the steel plate silo containing powder materials, achieve the purpose of online replacing the fluidizing rod, use the new fluidizing rod to replace the old fluidizing rod to homogenize the materials, achieve the purpose of smooth discharging, and avoid the need to wait for the silo to be empty to replace the fluidizing rod when the old fluidizing rod is blocked or damaged, reducing the difficulty of discharging during the process of waiting for the silo to be empty. Description of the Drawings

[0020] Figure 1It is a state diagram after the cutting operation opening on the wall of the steel plate bin is blocked and the new fluidizing rod is inserted into the placement channel;

[0021] Figure 2 It is a state diagram of using a drilling tool to drill the placement channel.

[0022] In the figure, 1. Steel plate bin, 2. Plugging disc, 3. Main air supply pipeline, 4. Air supply pipeline, 5. Fluidizing rod, 6. On-off valve, 7. Placement channel, 8. Drilling pipe, 9. Drill bit, 10. Negative pressure material suction equipment, 1001. Vacuum pump, 1002. Hose, 11. Rotating chuck, 12. Fixed platform. Specific implementation manner

[0023] To clearly illustrate the technical features of this solution, the present invention will be elaborated in detail below through specific implementation manners in combination with the drawings.

[0024] In addition, in the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0025] As Figure 1-2 shown, a method for online replacement of the fluidizing rod includes the following steps:

[0026] a. Close the valve on the air supply pipeline corresponding to the connection of the old fluidizing rod, disconnect the air supply pipeline from the old fluidizing rod, so that the main air supply pipeline 3 no longer supplies gas to the old fluidizing rod.

[0027] b. Determine the insertion position of the new fluidizing rod 5 on the wall of the steel plate bin 1 and mark it with a marker pen. This position is arranged at an interval from the old fluidizing rod. In this embodiment, the diameter of the fluidizing rod 5 is about 60 mm, and generally a groove-like structure will be set inside the steel plate bin 1. The fluidizing rod 5 is located in the groove. The width of the groove is generally about 270 mm. The new fluidizing rod 5 is generally also located in the groove after insertion. The approximate distance between the new fluidizing rod 5 and the old fluidizing rod is 8 - 10 mm. In this way, the new fluidizing rod 5 can replace the old fluidizing rod to activate the material at this position. At the same time, when there is material in the steel plate bin 1, the old fluidizing rod can not be removed, and the old fluidizing rod can be removed until the bin is empty.

[0028] c. Use a cutting tool to cut an operation opening on the wall of the steel silo 1 corresponding to the insertion position of the fluidizing rod 5. An electric cutting machine or a laser cutting machine can be used for cutting.

[0029] d. Use a drilling tool to drill a placement channel 7 in the powder in the steel silo 1. This placement channel 7 is arranged close to the old fluidizing rod, and the angle of the placement channel 7 is determined according to the angle of the material guiding cone of different steel silos 1. The angle of the placement channel 7 is basically the same as the angle of the material guiding cone.

[0030] It should be understood that when there is a large amount of powder in the steel silo 1, the powder at the bottom of the silo is pressed very densely. Therefore, a placement channel 7 can be drilled at the bottom of the silo through a drilling tool.

[0031] e. After drilling the placement channel 7, place the new fluidizing rod 5 into the placement channel 7. Here, the placement can be carried out manually or by other auxiliary tools. The rear end of the new fluidizing rod 5 extends out of the cutting operation opening and is connected to the main air supply pipe 3 through another (new) air supply pipe 4. A switch valve 6 is provided on this air supply pipe 4. Since the position where the original old air supply pipe was connected to the new fluidizing rod 5 is misaligned and cannot be connected to the new fluidizing rod 5, a new air supply pipe 4 is configured on the main air supply pipe 3 to supply air into the new fluidizing rod 5.

[0032] f. Finally, seal the cutting operation opening to prevent the powder in the steel silo 1 from leaking from this position and also prevent water from entering from this position, causing the powder in the silo to get damp.

[0033] Further, between step d and step e, there is also an inspection step for the old fluidizing rod, that is, it is inspected by whether the new fluidizing rod 5 can be placed in the placement channel 7. If the new fluidizing rod 5 cannot enter the placement channel 7, it is detected that the old fluidizing rod is not blocked, and the new fluidizing rod 5 can be not replaced (on this basis, steps e and f above can not be executed). If the new fluidizing rod 5 easily enters the placement channel 7, it is detected that the old fluidizing rod is blocked, and thus the new fluidizing rod 5 is replaced.

[0034] Further, the sealing of the cutting operation opening in step f is realized through a sealing plate 2 with a through hole in the center. Here, the sealing plate 2 can be square, circular, etc. The sealing plate 2 is welded to the wall of the steel silo 1. The new fluidizing rod 5 passes through the through hole. When welding the sealing plate to the wall of the silo, in order to improve the sealing effect, a rubber pad, a silica gel pad, etc. can also be provided between the sealing plate 2 and the wall of the silo for further sealing.

[0035] In a further preferred embodiment, the above-mentioned sealing plate 2 is a disc, and the corresponding cutting operation opening is a circular opening. The circular opening and the disc have a small area, and the cutting area is small, shortening the cutting time. At the same time, the circular opening can also meet the use requirements.

[0036] Further, in order to easily lower the new fluidization rod 5 into the placement channel 7, the diameter of the above-mentioned placement channel 7 is 15 mm - 20 mm larger than the diameter of the new fluidization rod 5.

[0037] Further, step d is realized by the drilling pipe 8. A drill bit 9 is provided at the front end of the drilling pipe 8, and the drill bit 9 extends out of the front end of the drilling pipe 8. In this way, during the process of the drilling pipe 8 rotating forward, the drill bit 9 breaks up the material. The rear end of the drilling pipe 8 is connected with a negative pressure material suction device 10, and the broken material is transported out through the drilling pipe 8 by the negative pressure material suction device 10. This can avoid the material blocking the drilling pipe 8 during the process of drilling the placement channel 7.

[0038] Further, the above-mentioned drilling pipe 8 is arranged on a rotating chuck 11 (the rotating chuck 11 here is similar to the three-jaw chuck structure on the existing lathe, or can also be similar to the chuck structure of the existing electric threading machine. When in use, the tapping pressure plate of the electric threading can be removed and not used). The rotating chuck 11 is slidably arranged on a fixed platform 12 through its connected base. The rotating chuck 11 drives the drilling pipe 8 to rotate, and at the same time, the rotating chuck 11 realizes the forward and backward feeding by sliding on the fixed platform 12. The forward and backward feeding in the front and rear directions can be manually operated or can also be realized by other means, such as the telescopic movement of an electric cylinder, a cylinder or an oil cylinder, etc.

[0039] Further, the negative pressure material suction device 10 includes a vacuum pump 1001 and a hose 1002. One end of the hose 1002 is connected to the vacuum pump 1001, and the other end is connected to the rear end of the drilling pipe. Here, the hose 1002 refers to a hose that can be coiled and will not produce a shriveled phenomenon when the vacuum pump 1001 sucks the material. The coiled hose 1002 can adapt to the length requirement when the drilling pipe 8 advances.

[0040] Further, the above-mentioned step d can also be realized by a screw conveyor. One end of the screw conveyor is connected to a motor, and the motor is fixed on a moving seat. The movement of the moving seat can be realized by setting a guide rail, and the moving seat is arranged on the guide rail. The sliding of the moving seat can be manually pushed or can also be realized by other telescopic devices, such as an electric cylinder, a cylinder, an oil cylinder, etc.

[0041] The above specific implementation manners cannot be used as a limitation to the protection scope of the present invention. For those skilled in the art of this technology, any alternative improvement or transformation made to the implementation manner of the present invention falls within the protection scope of the present invention.

[0042] Where the present invention is not described in detail, it is all well-known technology to those skilled in the art of this technology.

Claims

1. An online method for replacing a fluidization rod, characterized in that, It includes the following steps: a. Close the valve on the air supply pipeline corresponding to the old fluidizing rod, and disconnect the air supply pipeline from the old fluidizing rod; b. Determine the insertion position of the new fluidizing rod on the wall of the steel plate silo, and mark it with a marker pen. This position is set at an interval from the old fluidizing rod; c. Use a cutting tool to cut an operation opening on the wall of the steel plate silo corresponding to the insertion position of the fluidizing rod; d. Use a drilling tool to drill a placement channel in the powder in the steel plate silo. This placement channel is arranged close to the old fluidizing rod and is realized through a drilling pipe. A drill bit is provided at the front end of the drilling pipe, and the drill bit extends out of the front end of the drilling pipe. The rear end of the drilling pipe is connected to a negative pressure material suction device. The negative pressure material suction device includes a vacuum pump and a hose. One end of the hose is connected to the vacuum pump, and the other end is connected to the rear end of the drilling pipe. The drilling pipe is arranged on a rotating chuck, and the rotating chuck is slidably arranged on a fixed platform through its connected base. The rotating chuck drives the drilling pipe to rotate, and at the same time, the rotating chuck realizes forward and backward feeding by sliding on the fixed platform; e. If the new fluidizing rod cannot enter the placement channel, it is detected that the old fluidizing rod is not blocked, and the new fluidizing rod is not replaced. If the new fluidizing rod easily enters the placement channel, it is detected that the old fluidizing rod is blocked, and the new fluidizing rod is replaced; f. Place the new fluidizing rod into the placement channel. The rear end of the new fluidizing rod extends out of the cutting operation opening and is connected to the main air supply pipeline through another air supply pipeline. A switch valve is provided on this air supply pipeline; g. Seal the cutting operation opening.

2. The method for online replacement of a fluidization rod according to claim 1, wherein The sealing of the cutting operation opening in step f is realized through a sealing plate with a through hole in the center. The sealing plate is welded on the wall of the steel plate silo, and the new fluidizing rod passes through the through hole.

3. The method for online replacement of a fluidizing rod according to claim 2, characterized in that, The sealing plate is a disc.

4. A method for online replacement of a fluidizing rod according to claim 1, characterized in that, The diameter of the placement channel is 15 mm - 20 mm larger than the diameter of the new fluidizing rod.

5. The method for online replacement of a fluidization rod according to claim 1, characterized in that, In step d, it is realized through a screw conveyor. One end of the screw conveyor is connected to a motor, and the motor is fixed on a moving seat.

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