Anti-blocking device for descending of pneumatic conveying pipeline
By installing anti-blocking components and air companion pipes in the ash pipe descending section, and using the second gas source to blow the gas into the stable flow state, the blockage and wear problems caused by the decline of the ash pipe are solved, and the anti-blocking effect is achieved.
Patent Information
- Application Number
- CN202422255728.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-14
AI Technical Summary
When the ash-transport pipeline falls, the internal gas flow state changes, resulting in large resistance, aggravated wear and easy blockage.
The anti-blocking component is installed in the lowering section of the ash pipe, and the second gas source is connected through the companion air pipe, and the second gas source is blown into the gas to stabilize the flow state to prevent material from adhesion.
Effectively prevent the downward section of the ash pipe, reduce wear, and maintain the normal operation of the conveying system.
Smart Images
Figure CN223117560U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pneumatic ash conveying, in particular to an anti-blocking device for the descent of a pneumatic conveying pipeline. Background Technique
[0002] The positive pressure dense phase pneumatic ash removal system is a relatively new dry ash removal system in China. It widely uses silo pumps to convey ash and slag in flue gas over long distances. It has the characteristics of simple system, flexible layout, reliable operation, high degree of automation, low system investment, high ash-gas ratio in conveying, low flow velocity, small maintenance workload and low annual operation cost. This system is widely used in China. The positive pressure dense phase pneumatic ash removal system is developed by combining fluidization and gas-solid two-phase flow technologies. The silo pump (conveyor) conveys materials in a way of fluidizing and conveying at the same time. Therefore, for the dense phase pneumatic conveying system, the fluidization state in the silo pump is of extremely important significance to the normal feeding and conveying of the silo pump.
[0003] In a conventional ash conveying pipeline, a descending section is not allowed. If the conveying pipeline descends, the gas flow state in the ash conveying pipe changes, resulting in large resistance in the pipeline, increased wear, easy damage of the conveying pipeline, and easy blockage of the conveying pipeline. However, not allowing a descending section will limit the normal conveying of the conveying system. Therefore, an anti-blocking device for the descent of a pneumatic conveying pipeline is designed to solve the above problems. Content of the Utility Model
[0004] The purpose of the utility model is to solve the problems existing in the above background technique, and to propose an anti-blocking device for the descent of a pneumatic conveying pipeline.
[0005] The technical problem to be solved by the utility model is to provide an anti-blocking device for the descent of a pneumatic conveying pipeline, which solves the problems that when the ash conveying pipeline descends in the prior art, the gas flow state in the ash conveying pipe changes, the resistance in the pipeline is large, the wear is increased and damaged, and it is easy to be blocked.
[0006] The utility model provides an anti-blocking device for the descent of a pneumatic conveying pipeline, which includes a hopper, a conveyor, an air inlet pipe, a first air source and an ash pipe. The bottom of the hopper is penetrated with a conveyor. The right side of the conveyor is penetrated with an air inlet pipe. The right end of the air inlet pipe is connected with a first air source. The left side of the conveyor is penetrated with an ash pipe. A plurality of anti-blocking components are installed in the descending section of the ash pipe. The other ends of the plurality of anti-blocking components are connected with an air accompanying pipeline. The right end of the air accompanying pipeline is installed with a second air source.
[0007] Preferably, the anti-blocking component includes an external-thread single-head wire pipe, a dust arrester, a rubber hose and a threaded head. The external-thread single-head wire pipe penetrates through the ash pipe. A dust arrester is threadedly connected above the external-thread single-head wire pipe. A rubber hose is connected above the dust arrester. The other end of the rubber hose is fixedly provided with a threaded head, and the threaded head threadedly penetrates through the steam-traced pipe.
[0008] Preferably, air compressors are connected to the ends of the first gas source and the second gas source.
[0009] Preferably, a gas source impurity filter is further provided on the threaded head.
[0010] Preferably, the rubber hose is a high-pressure steel wire rubber hose, and the dust arrester is internally threaded and connected to the rubber hose, and a polytetrafluoroethylene gasket is provided at the connection between the rubber hose and the dust arrester.
[0011] Preferably, the steam-traced pipe and the ash pipe are arranged in parallel.
[0012] Compared with the prior art, the utility model has at least the following beneficial effects:
[0013] 1. By providing an anti-blocking component and a steam-traced pipe, when the second gas source is turned on, the second gas source blows gas into the steam-traced pipe and then into the ash pipe through the anti-blocking component, so as to blow off the materials adhering to the inner wall of the descending section of the ash pipe, achieving the effect of preventing blockage. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally denoted by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0015] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present utility model.
[0016] Figure 2 It is a schematic cross-sectional view of a partial structure of the present utility model.
[0017] [Reference Numerals]
[0018] 1. Ash hopper; 2. Conveyor; 3. Inlet pipe; 4. First gas source; 5. Ash pipe; 6. External-thread single-head wire pipe; 7. Dust arrester; 8. Rubber hose; 801. Threaded head; 9. Steam-traced pipe; 10. Second gas source. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] Embodiment:
[0020] As Figure 1 - Figure 2As shown in the figure, an anti-blocking device for the descent of a pneumatic conveying pipeline according to an embodiment of the present utility model includes a hopper 1, a conveyor 2, an air inlet pipe 3, a first air source 4, and an ash pipe 5. The conveyor 2 is disposed through the bottom of the hopper 1, the air inlet pipe 3 is disposed through the right side of the conveyor 2, the right end of the air inlet pipe 3 is connected to the first air source 4, the ash pipe 5 is disposed through the left side of the conveyor 2, and a plurality of anti-blocking components are installed on the descending section of the ash pipe 5. The other ends of the plurality of anti-blocking components are connected to an air accompanying pipeline 9, and a second air source 10 is installed at the right end of the air accompanying pipeline 9.
[0021] During normal ash conveying, the valve below the hopper 1 is opened, and the materials in the hopper fall into the conveyor 2. By turning on the first air source 4, the first air source 4 blows gas into the air inlet pipe 3 and carries the materials into and out of the ash pipe 5. During the process of the materials moving along the ash pipe 5, when the ash pipe descends, the gas flow state in the ash pipe 5 changes, the resistance increases, and the materials are likely to adhere to the surface of the ash pipe. By providing the anti-blocking components and the air accompanying pipeline 9, the second air source 10 is turned on. The second air source 10 blows gas into the air accompanying pipeline 9 and blows it into the ash pipe 5 through the anti-blocking components, blows off the materials adhering to the inner wall of the descending section of the ash pipe 5, and stabilizes the flow state in the ash pipe 5 to achieve the anti-blocking effect.
[0022] In this embodiment, the anti-blocking component includes an external thread single-head pipe 6, a dust arrester 7, a rubber hose 8, and a threaded head 801. The external thread single-head pipe 6 penetrates through the ash pipe 5, the dust arrester 7 is threadedly connected above the external thread single-head pipe 6, the rubber hose 8 is connected above the dust arrester 7, the other end of the rubber hose 8 is fixedly provided with the threaded head 801, and the threaded head 801 threadedly penetrates through the air accompanying pipeline 9.
[0023] In this embodiment, air compressors are connected to the ends of both the first air source 4 and the second air source 10. By means of the air compressors, the air supply of the first air source 4 and the second air source 10 is pressurized to ensure the normal flow of gas in the ash pipe 5 and the air accompanying pipeline 9.
[0024] In this embodiment, an air source impurity filter is further provided on the threaded head 801 to facilitate filtering of impurities in the air source.
[0025] In this embodiment, the rubber hose 8 is a high-pressure steel wire rubber hose, and the dust arrester 7 is internally threaded and connected to the rubber hose 8. A polytetrafluoroethylene gasket is provided at the connection between the rubber hose 8 and the dust arrester 7 to ensure the sealing performance when the dust arrester 7 is connected to the rubber hose 8 and prevent air leakage.
[0026] In this embodiment, the air accompanying pipeline 9 is arranged in parallel with the ash pipe 5 to facilitate the installation of the air accompanying pipeline 9 on the ash pipe.
[0027] The above are only the preferred embodiments of the present utility model. It should be noted that for those skilled in the art, without departing from the concept of the present utility model, several modifications and improvements can be made, which should also be regarded as the protection scope of the present utility model, and these will not affect the implementation effect of the present utility model and the practicability of the patent.
Claims
1. An anti-blocking device for the descent of a pneumatic conveying pipeline, characterized in that: It includes a hopper (1), a conveyor (2), an intake pipe (3), a first air source (4) and an ash pipe (5). The conveyor (2) is disposed through the bottom of the hopper (1). The intake pipe (3) is disposed through the right side of the conveyor (2). The right end of the intake pipe (3) is connected to the first air source (4). The ash pipe (5) is disposed through the left side of the conveyor (2). A plurality of anti-blocking components are installed on the descending section of the ash pipe (5). The other ends of the plurality of anti-blocking components are connected to an air accompanying pipe (9). The right end of the air accompanying pipe (9) is installed with a second air source (10).
2. The anti-blocking device for the pneumatic conveying pipeline to descend according to claim 1, characterized in that: The anti-blocking component includes an external thread single-head pipe (6), a dust arrester (7), a rubber pipe (8) and a threaded head (801). The external thread single-head pipe (6) penetrates through the ash pipe (5). The dust arrester (7) is threadedly connected above the external thread single-head pipe (6). The rubber pipe (8) is connected above the dust arrester (7). The other end of the rubber pipe (8) is fixedly provided with a threaded head (801). The threaded head (801) threadedly penetrates through the air accompanying pipe (9).
3. The anti-blocking device for the pneumatic conveying pipeline decline according to claim 2, characterized in that: Air compressors are connected to the ends of the first air source (4) and the second air source (10).
4. The anti-blocking device for the pneumatic conveying pipeline decline according to claim 3, characterized in that: An air source impurity filter is further provided on the threaded head (801).
5. The anti-blocking device for the pneumatic conveying pipeline to descend according to claim 4, characterized in that: The rubber pipe (8) is a high-pressure steel wire rubber pipe. The dust arrester (7) is internally threaded and live-connected to the rubber pipe (8). A polytetrafluoroethylene gasket is provided at the live-connection of the rubber pipe (8) and the dust arrester (7).
6. The anti-blocking device for the pneumatic conveying pipeline to descend according to claim 5, characterized in that: The air accompanying pipe (9) is arranged in parallel with the ash pipe (5).