AU2018418036A1 - System and method for pneumatic conveying with accurate pressurization - Google Patents
System and method for pneumatic conveying with accurate pressurization Download PDFInfo
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- AU2018418036A1 AU2018418036A1 AU2018418036A AU2018418036A AU2018418036A1 AU 2018418036 A1 AU2018418036 A1 AU 2018418036A1 AU 2018418036 A AU2018418036 A AU 2018418036A AU 2018418036 A AU2018418036 A AU 2018418036A AU 2018418036 A1 AU2018418036 A1 AU 2018418036A1
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- pressurizing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/66—Use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or preventing jamming of material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Transport Of Granular Materials (AREA)
- Measuring Volume Flow (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
A system for pneumatic conveying with accurate pressurization is provided, which comprises a pneumatic material conveying pipeline, wherein a pressure measuring device and a pressurizing device are sequentially arranged at an interval on the pneumatic material conveying pipeline in material flowing direction; the pressure measuring device comprises a pressure measuring pipe and a pressure sensor, left and right ends of the pressure measuring pipe are connected to the pneumatic material conveying pipeline, and the pressure sensor is connected to an upper end of middle part of the pressure measuring pipe; the pressurizing device comprises a pressurizing pipe, an electronically controlled reversing valve, a flow meter, an electronically controlled flow valve, and a high-pressure air conveying pipe, left and right ends of the pressurizing pipe are connected to the pneumatic material conveying pipeline, and three pressurizing valves are arranged on the pressurizing pipe. The system further comprises a data acquisition device and a data analysis controller which are electrically connected to each other. The present invention can generate a relatively reasonable axial-flow pressurized flow field or swirling-flow pressurized flow field, which can satisfy the demands of partial or overall pressurization of the pipeline, and also can prevent problems such as material crushing and energy loss caused by excessive pressurization.
Description
SYSTEM AND METHOD FOR PNEUMATIC CONVEYING WITH ACCURATE PRESSURIZATION
BACKGROUND OF THE INVENTION
Field of the Invention
The present invention relates to a system and method for pneumatic conveying with accurate pressurization, which is appropriate for a system for air pneumatic conveying of inert materials in dilute phase and dense phase.
Description of Related Art
A system for pneumatic conveying is a conveying system that conveys powdery grained materials in a pipeline by using an airflow having a certain pressure and a certain speed. In the pipeline for pneumatic conveying, a mixed medium of air and the powdery grained materials is generally present and belongs to the category of gas-solid two-phase flow. In the process for pneumatic conveying, the conveying speed of the materials is gradually reduced due to the friction between the materials and the pipeline and the friction between the materials, and as a result, the materials are blocked at a position with a large pressure loss, such as an elbow pipe or a bifurcated pipe. Therefore, multiple sets of pressurizing devices are often added to the system for pneumatic conveying to prevent pipeline blockage.
However, the existing devices and methods for pneumatic pressurizing have problems such as insufficient or excessive pressurization, easy damage of a pressure measuring system, and the inability to achieve more accurate pressurizing behavior, thereby restricting the development of the system for pneumatic conveying.
SUMMARY OF THE INVENTION
Technical Problem
To overcome the foregoing deficiencies of the prior art, the present invention provides a system and method for pneumatic conveying with accurate pressurization, which can generate a relatively reasonable axial-flow pressurized flow field or swirling-flow pressurized flow field, which can satisfy the demands of partial or overall pressurization of the pipeline, and i
also can prevent problems such as material crushing and energy loss caused by excessive pressurization.
Technical Solution
The present invention adopts the following technical solution to solve the technical problems thereof:
A system for pneumatic conveying with accurate pressurization, comprising a pneumatic material conveying pipeline, wherein a pressure measuring device and a pressurizing device are sequentially arranged at an interval on the pneumatic material conveying pipeline in material flowing direction. The pressure measuring device comprises a pressure measuring pipe and a pressure sensor, left and right ends of the pressure measuring pipe are connected to the pneumatic material conveying pipeline, and the pressure sensor is connected to an upper end of middle part of the pressure measuring pipe. The pressurizing device comprises a pressurizing pipe, an electronically controlled reversing valve, a flow meter, an electronically controlled flow valve, and a high-pressure air conveying pipe. Left and right ends of the pressurizing pipe are connected to the pneumatic material conveying pipeline. Three pressurizing valves are arranged on the pressurizing pipe. Three valve holes in the radial direction and three annular pressurizing cavities in the circumferential direction are disposed on a pipe wall of the pressurizing pipe. The three valve holes are uniformly arranged in the axial direction of the pressurizing pipe. The pressurizing valves are mounted in the respective valve holes. One end of the pressurizing valves is connected to the respective annular pressurizing cavities, and the other end of the pressurizing valves is connected to an outlet of the electronically controlled reversing valve. An inlet of the electronically controlled reversing valve is connected to an outlet of the flow meter, and an inlet of the flow meter is connected to an outlet of the electronically controlled flow valve, and an inlet of the electronically controlled flow valve is connected to the high-pressure air conveying pipe. The system further comprises a data acquisition device and a data analysis controller electrically connected to each other. A data output end of the pressure sensor of the pressure measuring device is connected to the data acquisition device via a data transmission line. A control end of the electronically controlled reversing valve is connected to the data analysis controller. A data output end of the flow meter is connected to the data acquisition device via a data transmission line. A control end of the electronically controlled flow valve is connected to the data analysis controller.
A method for pneumatic conveying with accurate pressurization, comprising the following steps:
1) arranging multiple sets of pressure measuring devices and pressurizing devices in a pneumatic material conveying pipeline;
2) obtaining, by the pressure measuring devices, the change in flow field pressure in a pipeline system for pneumatic conveying, transmitting the change to a data acquisition device via a data line, and transmitting, by the data acquisition device, the acquired pressure data to a data analysis controller;
3) analyzing, by the data analysis controller, the obtained change in flow field pressure and comparing the change in flow field pressure with a preset normal pneumatic conveying value;
4) controlling, by the data analysis controller, a corresponding electronically controlled flow valve to open when the obtained pressure value is less than a set value, so that high-pressure air enters the pneumatic material conveying pipeline through a high-pressure air conveying pipeline, an electronically controlled flow valve, a flow meter, an electronically controlled reversing valve, and a pressurizing pipe;
5) passing a high-pressure airflow in the high-pressure air conveying pipeline into axial-flow pressurizing holes when a path of the electronically controlled reversing valve is connected to the axial-flow pressurizing holes on the pressurizing pipe, so as to generate an axial-flow pressurized flow field;
6) passing the high-pressure airflow in the high-pressure air conveying pipeline into radial pressurizing holes when the path of the electronically controlled reversing valve is connected to the radial pressurizing holes on the pressurizing pipe, so as to generate a pure pressurized flow field;
7) passing the high-pressure airflow in the high-pressure air conveying pipeline into swirling-flow pressurizing holes when the path of the electronically controlled reversing valve is connected to the swirling-flow pressurizing holes on the pressurizing pipe, so as to generate a swirling-flow pressurized flow field; and
8) during the pressurization process, feeding back, by the pressure measuring device and the flow meter, the pressure and flow data to the data analysis controller in time by means of the data acquisition device; and adjusting and controlling, by the data analysis controller, the opening degree of the corresponding electronically controlled flow valve, and the position and opening time of the electronically controlled reversing valve by analyzing the fed-back data, so as to generate a suitable axial-flow pressurized flow field, pure pressurized flow field, or swirling-flow pressurized flow field to obtain accurate pressurizing flow, pressurizing mode and pressurizing time for the position.
Advantageous Effect
Compared with the prior art, in the system and method for pneumatic conveying with accurate pressurization of the present invention, multiple sets of pressure measuring devices and pressurizing devices are arranged in a pneumatic material conveying pipeline, the change in flow field pressure in a pipeline system for pneumatic conveying is transmitted to a data acquisition device and a data analysis controller, and the change in flow field pressure is compared with a preset normal conveying value. The data analysis controller controls a corresponding electronically controlled flow valve and electronically controlled reversing valve to open radial pressurizing holes of the pressurizing device when the obtained pressure value is less than a set value, so as to generate a pure pressurized flow field. During the pressurization process, the pressure measuring device and the flow meter feed back the pressure and flow data to the data analysis controller in time, and the opening degree of the corresponding electronically controlled flow valve, and the position and opening time of the electronically controlled reversing valve are adjusted and controlled by analyzing the fed-back data, so as to generate a relatively reasonable axial-flow pressurized flow field or swirling-flow pressurized flow field to obtain accurate pressurizing flow, pressurizing mode and pressurizing time for the position, which can satisfy the demands of partial or overall pressurization of the pipeline, and also can prevent problems such as material crushing and energy loss caused by excessive pressurization. Therefore, the present invention has strong novelty and wide applicability.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention is further described below with reference to the accompanying drawings and embodiments.
FIG. 1 is a structural diagram of a system according to an embodiment of the present invention.
FIG. 2 is a schematic structural diagram of a pressure measuring device in FIG. 1.
FIG. 3 is a schematic structural diagram of a pressurizing device in FIG. 1.
FIG. 4 is an enlarged view of B in FIG. 3.
In the drawings, 1, data acquisition device; 2, data analysis controller; 3, high-pressure air conveying pipe; 4, electronically controlled flow valve; 5, flow meter; 6, electronically controlled reversing valve; 7, pressure measuring device; 8, pressurizing device; 9, connecting flange; 10, pneumatic material conveying pipeline; 7-1, pressure sensor; 7-2, dustproof tank; 7-3, filter screen; 7-4, pressure measuring pipe; 8-1, axial-flow pressurizing hole; 8-2, radial pressurizing hole; 8-3, swirling-flow pressurizing hole; 8-4, pressurizing pipe; 8-5, valve spring; 8-6, high-pressure pipeline; 8-7, hemispherical valve; 8-8, annular pressurizing cavity; and 8-9, valve hole.
DETAILED DESCRIPTION OF THE INVENTION
To make the objectives, technical solutions, and advantages of embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described below clearly and completely with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the described embodiments of the present invention without involving any inventive effort are within the protection scope of the present invention.
FIGs. 1-4 illustrate schematic structural diagrams of a preferred embodiment of the present invention. A system for pneumatic conveying with accurate pressurization in FIG. 1 comprises a pneumatic material conveying pipeline 10, wherein a pressure measuring device 7 and a pressurizing device 8 are sequentially arranged at an interval on the pneumatic material conveying pipeline 10 in the material flowing direction. Preferably, multiple sets of the pressure measuring devices 7 and the pressurizing devices 8 are arranged on the pneumatic material conveying pipeline 10, and the pressurizing device 8 is mounted in pairs with the pressure measuring device 7. Specifically, the pressure measuring devices 7 and the pressurizing devices 8 are both connected to the pneumatic material conveying pipeline 10 by means of connecting flanges 9. Referring to FIG. 2, the pressure measuring device 7 comprises a pressure measuring pipe 7-4 and a pressure sensor 7-1. The pressurizing pipe 8-4 is formed by pressing and sintering using the powder metallurgy technology and has strong wear resistance. Left and right ends of the pressure measuring pipe 7-4 are connected to the pneumatic material conveying pipeline 10. The pressure sensor 7-1 is connected to an upper end of middle part of the pressure measuring pipe 7-4. Referring to FIGs. 3 and 4, the pressurizing device 8 comprises a pressurizing pipe 8-4, an electronically controlled reversing valve 6, a flow meter 5, an electronically controlled flow valve 4, and a high-pressure air conveying pipe 3. Left and right ends of the pressurizing pipe 8-4 are connected to the pneumatic material conveying pipeline 10. Three pressurizing valves are arranged on the pressurizing pipe 8-4. Three valve holes 8-9 in the radial direction and three annular pressurizing cavities 8-8 in the circumferential direction are disposed on a pipe wall of the pressurizing pipe 8-4. The three valve holes 8-9 are uniformly arranged in the axial direction. The pressurizing valves are mounted in the respective valve holes 8-9. One end of the pressurizing valves is connected to the respective annular pressurizing cavities 8-8, and the other end of the pressurizing valves is connected to an outlet of the electronically controlled reversing valve 6. Different pressurizing modes can be obtained by controlling different valve positions of the electronically controlled reversing valve 6, so as to generate an axial-flow pressurized flow field, a pure pressurized flow field, and a swirling-flow pressurized flow field. An inlet of the electronically controlled reversing valve 6 is connected to an outlet of the flow meter 5, and an inlet of the flow meter 5 is connected to an outlet of the electronically controlled flow valve 4, and an inlet of the electronically controlled flow valve 4 is connected to the high-pressure air conveying pipe 3. The system further comprises a data acquisition device 1 and a data analysis controller 2 electrically connected to each other. A data output end of the pressure sensor 7-1 of the pressure measuring device 7 is connected to the data acquisition device 1 via a data transmission line. A control end of the electronically controlled reversing valve 6 is connected to the data analysis controller 2. A data output end of the flow meter 5 is connected to the data acquisition device 1 via a data transmission line. A control end of the electronically controlled flow valve 4 is connected to the data analysis controller 2.
As shown in FIGs. 3 and 4, axial-flow pressurizing holes 8-1, radial pressurizing holes 8-2, and swirling-flow pressurizing holes 8-3 are uniformly disposed on the three annular pressurizing cavities 8-8 of the pressurizing device 8, respectively. One end of each of the axial-flow pressurizing holes 8-1, the radial pressurizing holes 8-2, and the swirling-flow pressurizing holes 8-3 is connected to the respective annular pressurizing cavities 8-8, and the other end is connected to an inner cavity of the pressurizing pipe. The radial pressurizing holes 8-2 are perpendicular to the axial direction of the pressurizing pipe 8-4 to generate a pure pressurized flow field. The axial-flow pressurizing holes 8-1 form a tilt angle of 5°-85° with the axial direction of the pressurizing pipe 8-4 to generate an axial-flow pressurized flow field. The swirling-flow pressurizing holes 8-3 form a tilt angle of 5°-85° with the axial direction of the pressurizing pipe 8-4 and form an offset angle of 5°-85° with the axial direction of the pressurizing pipe 8-4 to generate a swirling-flow pressurized flow field. Further, a valve spring 8-5, a high-pressure pipeline 8-6, and a hemispherical valve 8-7 are disposed in each of the valve holes 8-9. The periphery of a tail end of the high-pressure pipeline 8-6 is threadedly and sealedly connected to an upper end of the valve hole 8-9 through a thread. The tail end of the high-pressure pipeline 8-6 is in contact with an upper end of the hemispherical valve 8-7 below, and a lower end of the hemispherical valve 8-7 is connected to an outlet of the valve hole 8-9 via the valve spring 8-5. The outlet of the valve hole 8-9 is in communication into the annular pressurizing cavity 8-8 in a manner of reduction in diameter.
As shown in FIG. 2, the pressure measuring device 7 further comprises a dustproof tank 7-2 and a filter screen 7-3. A pressure measuring hole is formed on an upper end of middle part of the pressure measuring pipe 7-4. The dustproof tank 7-2 is mounted on the pressure measuring hole. The filter screen 7-3 is mounted between the pressure measuring hole and the dustproof tank 7-2. The pressure sensor 7-1 is mounted on top of the dustproof tank 7-2. The filter screen 7-3 and the dustproof tank 7-2 can avoid the conveyed material particles from blocking the pressure measuring hole and prevent the material dust from entering the pressure sensor 7-1, thereby affecting the measurement result.
A method for pneumatic conveying with accurate pressurization, comprising the following steps:
1) multiple sets of pressure measuring devices 7 and pressurizing devices 8 are arranged in a pneumatic material conveying pipeline 10;
2) the pressure measuring device 7 obtains the change in flow field pressure in a pipeline system for pneumatic conveying, and transmits the change to a data acquisition device 1 via a data line, and the data acquisition device 1 transmits the acquired pressure data to a data analysis controller 2;
3) the data analysis controller 2 analyzes the obtained change in flow field pressure and compares the change in flow field pressure with a preset normal pneumatic conveying value;
4) the data analysis controller 2 controls a corresponding electronically controlled flow valve 4 to open when the obtained pressure value is less than a set value, so that high-pressure air enters the pneumatic material conveying pipeline 10 through a high-pressure air conveying pipeline 3, an electronically controlled flow valve 4, a flow meter 5, an electronically controlled reversing valve 6, and a pressurizing pipe 8-4;
5) a high-pressure airflow in the high-pressure air conveying pipeline 3 is passed into axial-flow pressurizing holes 8-1 when a path of the electronically controlled reversing valve 6 is connected to the axial-flow pressurizing holes 8-1 on the pressurizing pipe 8-4, so as to generate an axial-flow pressurized flow field;
6) the high-pressure airflow in the high-pressure air conveying pipeline 3 is passed into radial pressurizing holes 8-2 when the path of the electronically controlled reversing valve 6 is connected to the radial pressurizing holes 8-2 on the pressurizing pipe 8-4, so as to generate a pure pressurized flow field;
7) the high-pressure airflow in the high-pressure air conveying pipeline 3 is passed into swirling-flow pressurizing holes 8-3 when the path of the electronically controlled reversing valve 6 is connected to the swirling-flow pressurizing holes 8-3 on the pressurizing pipe 8-4, so as to generate a swirling-flow pressurized flow field; and
8) during the pressurization process, the pressure measuring device 7 and the flow meter 5 feed back the pressure and flow data to the data analysis controller 2 in time by means of the data acquisition device 1, and the data analysis controller 2 adjusts and controls the opening degree of the corresponding electronically controlled flow valve 4 and the position and opening time of the electronically controlled reversing valve 6 by analyzing the fed-back data, so as to generate a suitable axial-flow pressurized flow field, pure pressurized flow field, or swirling-flow pressurized flow field to obtain accurate pressurizing flow, pressurizing mode and pressurizing time for the position, which can satisfy the demands of partial or overall pressurization of the pipeline, and also can prevent problems such as material crushing and energy loss caused by excessive pressurization.
The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way. Any simple modifications and equivalent changes made to the foregoing embodiments in accordance with the technical spirit of the present invention fall within the protection scope of the present invention.
Claims (8)
- What is claimed is:1. A system for pneumatic conveying with accurate pressurization, comprising a pneumatic material conveying pipeline (10), wherein a pressure measuring device (7) and a pressurizing device (8) are sequentially arranged at an interval on the pneumatic material conveying pipeline (10) in material flowing direction;the pressure measuring device (7) comprises a pressure measuring pipe (7-4) and a pressure sensor (7-1); left and right ends of the pressure measuring pipe (7-4) are connected to the pneumatic material conveying pipeline (10); and the pressure sensor (7-1) is connected to an upper end of middle part of the pressure measuring pipe (7-4);the pressurizing device (8) comprises a pressurizing pipe (8-4), an electronically controlled reversing valve (6), a flow meter (5), an electronically controlled flow valve (4), and a high-pressure air conveying pipe (3); left and right ends of the pressurizing pipe (8-4) are connected to the pneumatic material conveying pipeline (10); three pressurizing valves are arranged on the pressurizing pipe (8-4); three valve holes (8-9) in radial direction and three annular pressurizing cavities (8-8) in circumferential direction are disposed on a pipe wall of the pressurizing pipe (8-4); the three valve holes (8-9) are uniformly arranged in axial direction of the pressurizing pipe (8-4); the pressurizing valves are mounted in the respective valve holes (8-9); one end of the pressurizing valves is connected to the respective annular pressurizing cavities (8-8), and the other end of the pressurizing valves is connected to an outlet of the electronically controlled reversing valve (6); an inlet of the electronically controlled reversing valve (6) is connected to an outlet of the flow meter (5), and an inlet of the flow meter (5) is connected to an outlet of the electronically controlled flow valve (4), and an inlet of the electronically controlled flow valve (4) is connected to the high-pressure air conveying pipe (3);the system further comprises a data acquisition device (1) and a data analysis controller (2) electrically connected to each other; a data output end of the pressure sensor (7-1) of the pressure measuring device (7) is connected to the data acquisition device (1) via a data transmission line; a control end of the electronically controlled reversing valve (6) is connected to the data analysis controller (2); a data output end of the flow meter (5) is connected to the data acquisition device (1) via a data transmission line; and a control end of the electronically controlled flow valve (4) is connected to the data analysis controller (2).2. The system for pneumatic conveying with accurate pressurization according to claim 1, wherein axial-flow pressurizing holes (8-1), radial pressurizing holes (8-2), and swirling-flow pressurizing holes (8-3) are uniformly disposed on the three annular pressurizing cavities (8-8) of the pressurizing device (8), respectively; one end of each of the axial-flow pressurizing holes (8-1), the radial pressurizing holes (8-2), and the swirling-flow pressurizing holes (8-3) is connected to the respective annular pressurizing cavities (8-8), and the other end is connected to an inner cavity of the pressurizing pipe; the radial pressurizing holes (8-2) are perpendicular to the axial direction of the pressurizing pipe (8-4) to generate a pure pressurized flow field; the axial-flow pressurizing holes (8-1) form a tilt angle of 5°-85° with the axial direction of the pressurizing pipe (8-4) to generate an axial-flow pressurized flow field; the swirling-flow pressurizing holes (8-3) form a tilt angle of 5°-85° with the axial direction of the pressurizing pipe (8-4) and form an offset angle of 5°-85° with the axial direction of the pressurizing pipe (8-4) to generate a swirling-flow pressurized flow field.3. The system for pneumatic conveying with accurate pressurization according to claim 2, wherein a valve spring (8-5), a high-pressure pipeline (8-6), and a hemispherical valve (8-7) are disposed in each of the valve holes (8-9); periphery of a tail end of the high-pressure pipeline (8-6) is threadedly and sealedly connected to an upper end of the valve hole (8-9) through a thread; the tail end of the high-pressure pipeline (8-6) is in contact with an upper end of the hemispherical valve (8-7) below, and a lower end of the hemispherical valve (8-7) is connected to an outlet of the valve hole (8-9) via the valve spring (8-5); and the outlet of the valve hole (8-9) is in communication into the annular pressurizing cavity (8-8) in a manner of reduction in diameter.4. The system for pneumatic conveying with accurate pressurization according to claim 1, 2, or 3, wherein the pressurizing pipe (8-4) is formed by pressing and sintering using powder metallurgy technology.io5. The system for pneumatic conveying with accurate pressurization according to claim 2 or 3, wherein the pressure measuring device (7) further comprises a dustproof tank (7-2) and a filter screen (7-3); a pressure measuring hole is formed on the upper end of the middle part of the pressure measuring pipe (7-4); the dustproof tank (7-2) is mounted on the pressure measuring hole; the filter screen (7-3) is mounted between the pressure measuring hole and the dustproof tank (7-2); and the pressure sensor (7-1) is mounted on top of the dustproof tank (7-2).6. The system for pneumatic conveying with accurate pressurization according to claim 2 or 3, wherein multiple sets of the pressure measuring devices (7) and the pressurizing devices (8) are arranged on the pneumatic material conveying pipeline (10); the pressurizing device (8) is mounted in pairs with the pressure measuring device (7); and the pressure measuring devices (7) and the pressurizing devices (8) are both connected to the pneumatic material conveying pipeline (10) by means of connecting flanges (9).7. A method for pneumatic conveying with accurate pressurization, comprising the following steps:1) arranging multiple sets of pressure measuring devices (7) and pressurizing devices (8) in a pneumatic material conveying pipeline (10);
- 2) obtaining, by the pressure measuring devices (7), change in flow field pressure in a pipeline system for pneumatic conveying, transmitting the change to a data acquisition device (1) via a data line, and transmitting, by the data acquisition device (1), the acquired pressure data to a data analysis controller (2);
- 3) analyzing, by the data analysis controller (2), the obtained change in flow field pressure and comparing the change in flow field pressure with a preset normal pneumatic conveying value;
- 4) controlling, by the data analysis controller (2), a corresponding electronically controlled flow valve (4) to open when the obtained pressure value is less than the set value, so that high-pressure air enters the pneumatic material conveying pipeline (10) through a high-pressure air conveying pipeline (3), the electronically controlled flow valve (4), a flow meter (5), an electronically controlled reversing valve (6), and a pressurizing pipe (8-4);
- 5) passing a high-pressure airflow in the high-pressure air conveying pipeline (3) into axial-flow pressurizing holes (8-1) when a path of the electronically controlled reversing valve (6) is connected to the axial-flow pressurizing holes (8-1) on the pressurizing pipe (8-4), so as to generate an axial-flow pressurized flow field;
- 6) passing the high-pressure airflow in the high-pressure air conveying pipeline (3) into radial pressurizing holes (8-2) when the path of the electronically controlled reversing valve (6) is connected to the radial pressurizing holes (8-2) on the pressurizing pipe (8-4), so as to generate a pure pressurized flow field;
- 7) passing the high-pressure airflow in the high-pressure air conveying pipeline (3) into swirling-flow pressurizing holes (8-3) when the path of the electronically controlled reversing valve (6) is connected to the swirling-flow pressurizing holes (8-3) on the pressurizing pipe (8-4), so as to generate a swirling-flow pressurized flow field; and
- 8) during the pressurization process, feeding back, by the pressure measuring device (7) and the flow meter (5), the pressure and flow data to the data analysis controller (2) in time by means of the data acquisition device (1); and adjusting and controlling, by the data analysis controller (2), opening degree of the corresponding electronically controlled flow valve (4) and position and opening time of the electronically controlled reversing valve (6) by analyzing the fed-back data, so as to generate a suitable axial-flow pressurized flow field, pure pressurized flow field, or swirling-flow pressurized flow field to obtain accurate pressurizing flow, pressurizing mode and pressurizing time for the position.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810337000.9 | 2018-04-16 | ||
| CN201810337000.9A CN108584444B (en) | 2018-04-16 | Pneumatic conveying accurate pressurizing system and method | |
| PCT/CN2018/093019 WO2019200712A1 (en) | 2018-04-16 | 2018-06-27 | Precise pressure increasing system and method for pneumatic transport |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2018418036A1 true AU2018418036A1 (en) | 2019-10-31 |
| AU2018418036B2 AU2018418036B2 (en) | 2020-10-01 |
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ID=63622561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2018418036A Ceased AU2018418036B2 (en) | 2018-04-16 | 2018-06-27 | System and method for pneumatic conveying with accurate pressurization |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU2018418036B2 (en) |
| WO (1) | WO2019200712A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5562366A (en) * | 1992-05-12 | 1996-10-08 | Paulson; Jerome I. | Method and system for fast cycle transport of materials in dense phase |
| CN202414775U (en) * | 2011-12-30 | 2012-09-05 | 刘海兰 | Mud-sized grain conveying system |
| CN203714837U (en) * | 2014-02-25 | 2014-07-16 | 上海捷世欧国际贸易有限公司 | Mechanical pulverized coal pressurization device and continuous conveying system |
| CN103787085B (en) * | 2014-02-25 | 2015-10-28 | 航天长征化学工程股份有限公司 | A kind of mechanical type fine coal pressure device and continuous conveying system and continus convergence method |
| CN206088360U (en) * | 2016-08-29 | 2017-04-12 | 常州市法迪尔克粘土砂铸造机械有限公司 | Air conveying is booster on way |
-
2018
- 2018-06-27 WO PCT/CN2018/093019 patent/WO2019200712A1/en active Application Filing
- 2018-06-27 AU AU2018418036A patent/AU2018418036B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019200712A1 (en) | 2019-10-24 |
| AU2018418036B2 (en) | 2020-10-01 |
| CN108584444A (en) | 2018-09-28 |
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