CN107226353A - It is a kind of from dredging material-transporting system and its from dredging method - Google Patents
It is a kind of from dredging material-transporting system and its from dredging method Download PDFInfo
- Publication number
- CN107226353A CN107226353A CN201610177279.XA CN201610177279A CN107226353A CN 107226353 A CN107226353 A CN 107226353A CN 201610177279 A CN201610177279 A CN 201610177279A CN 107226353 A CN107226353 A CN 107226353A
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- Prior art keywords
- pipeline
- material conveying
- feed bin
- outlet door
- conveying
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Classifications
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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
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/24—Gas suction systems
-
- 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
-
- 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
- B65G53/52—Adaptations of pipes or tubes
- B65G53/56—Switches
-
- 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)
Abstract
The problem of existing material-transporting system is blocked is solved from dredging material-transporting system and its from dredging method the present invention relates to a kind of, it includes feed bin；Hopper；The lower pipeline of material conveying, entrance point is connected by hopper outlet door with hopper, and the port of export sets pressure detector by being connected with feed bin, in it；The upper pipeline of material conveying, is placed in above the lower pipeline of material conveying, its port of export is connected by upper pipe outlet door with feed bin by the way that the connection of several cross over pipes is parallel；Negative-pressure air fan, is connected by bin outlet pipeline with feed bin top, makes to produce negative-pressure air-flow in the lower pipeline of material conveying and the upper pipeline of material conveying；Hopper outlet door, negative-pressure air fan, lower pipe outlet door, upper pipe outlet door and feed bin import and export door by controller control.The present invention by conveyance conduit be set to above and below two layers, the lower pipeline of spent material conveying carries out material conveying during normal operation, by the upper pipeline of material conveying when blocking, realizes the function of material-transporting system automatic dredging.
Description
Technical field
The present invention relates to material-transporting system anti-clogging technology, refer in particular to a kind of negative-pressure pneumatic that is applied to and convey
In system, system pipeline occur can voluntarily to dredge during internal block from dredging material-transporting system and its from
Dredging method.
Background technology
Negative-pressure pneumatic transmission system is the system for carrying out material conveying using the energy of air, specifically refers to utilize
Aerodynamic energy with certain speed is come the system that conveys material.
In such induction system, line clogging is the most common and least tractable failure of pneumatic ash transmitting system
One of, account for more than the 60% of pneumatic ash transmitting system fault rate.
Referring to Fig. 1, the structure of existing material-transporting system is as follows：Material in hopper 15 passes through hopper outlet
14 (electric and pneumatic valves) of door enter in material conveying pipe 13；Material conveying pipe 13 and feed bin 11
Connection；Negative-pressure air fan 16 makes to produce negative-pressure air-flow in material conveying pipe 13 by bin outlet pipeline 17,
Negative-pressure air-flow carries material and entered in feed bin 11, and partial material is collected by filter bag 19, leads to filter Bags Anti-blow system
18 (with the blowback of instrument air) of system blow off feed bin 11.Hopper outlet door 14, negative-pressure air fan 16 with
And the import and export door of feed bin is by controller control (not shown).
Referring to Fig. 2, the operating method that existing material-transporting system occurs is as follows：
Pressure detector 12 is installed on material conveying pipe 13, pressure detector 12 detects delivery pipe
Road pressure value (pressure value of negative-pressure air-flow) if being not below controller setting value set in advance,
Material-transporting system is in normal running operation state；Once pressure detector 12 detects conveyance conduit pressure
Value is less than the setting value that controller is set, and controller judges that the inside of conveyance conduit 13 is blocked, and controller will be chain
Hopper outlet door 14 and feed bin import and export door are closed, and stops the running of negative-pressure air fan 16, material conveying
System-down, pipe-dredging is carried out by plant maintenance personnel.That is, once plugging fault occurs for system, can only
Dredged by manually pipeline is removed.Because the pipeline of ash pipeline line length and big wherein most is built on stilts
, maintenance difficulty is very big, and a pipeline is often dredged when serious just needs 7-8h.In addition, in conveyance conduit dredging
During can cause pipeline materials inside leak, cause dust from flying and pollute environment.
In order to which the phenomenon for reducing air-transport system line clogging as far as possible is produced, following measures are taken at present：(1)
Strengthen operational factor monitoring, anti-locking system negative-pressure air-flow hypotony；(2) blowing before and after setting system starts
Flyback time, prevents salvage stores from depositing；(3) periodically pipe inspection is safeguarded, prevents pipeline from occurring breakage and letting out
Dew.Although taking above-mentioned measure, plugging fault, serious shadow still can often occur for Pneumatic conveying pipeline
Ring production.
The content of the invention
The invention aims to solve the problem of prior art is present there is provided a kind of from dredging material conveying
System, makes in negative-pressure pneumatic transmission system, and system pipeline occurs voluntarily be dredged during internal block.
It is a further object of the present invention to provide a kind of from dredging material-transporting system from dredging method.
The purpose of the present invention is achieved through the following technical solutions：
A kind of from material-transporting system is dredged, it includes feed bin, and the top of feed bin is provided with filter bag, the top of feed bin
Portion is provided with filter bag blowback system, also includes：
Hopper, the built-in material conveyed；
The lower pipeline of material conveying, its entrance point is connected by hopper outlet door with the hopper, in conveyor hopper
Material；Its port of export is connected by lower pipe outlet door with the feed bin；It is provided with the lower pipeline of material conveying
Pressure detector；
The upper pipeline of material conveying, is set in parallel in the top of the lower pipeline of material conveying, and the upper pipeline of material conveying
It is interconnected after being welded between the lower pipeline of material conveying by several cross over pipes；Material conveys entering for upper pipeline
Weld a closure plate in mouth end；Its port of export is connected by upper pipe outlet door with feed bin；
Negative-pressure air fan, it is connected by bin outlet pipeline with the top of feed bin, make the lower pipeline of material conveying and
Negative-pressure air-flow is produced in the upper pipeline of material conveying；
The hopper outlet door, negative-pressure air fan, lower pipe outlet door, upper pipe outlet door and feed bin enter
Outlet portal is by controller control.
The hopper outlet door is electric and pneumatic valve.
The cross over pipe along air-flow conveying direction be in 30-45 degree inclination angle.
The upper pipe outlet door is electric and pneumatic valve.
It is another object of the present invention to what is be achieved through the following technical solutions：
A kind of recited above from dredging material-transporting system from dredging method, it includes below scheme：
S1, by the chain unlatching negative-pressure air fan of controller when induction system operation starts, hopper outlet door, down tube
Road outlet portal, the import and export door of feed bin, and upper pipe outlet door is closed, the negative-pressure air fan is gone out by feed bin
Mouth pipeline makes to produce negative pressure in the lower pipeline of material conveying；
S2, differentiates that the pipeline pressure value that the pressure detector in the lower pipeline of material conveying is detected is by controller
No the first setting value set less than controller, if being not below the first setting value, induction system is normal
Negative-pressure air-flow in operation, the lower pipeline of material conveying carries material and entered in feed bin；
S3, if the pipeline pressure value in the lower pipeline of material conveying is less than the first setting value, controller judges material
The blanking that struggles against is too fast, closes hopper outlet door；Continue to detect the pipeline pressure value in the lower pipeline of material conveying, one
When waiting until that the pipeline pressure value of the lower pipeline of material conveying is not less than the first setting value, controller automatically opens up material
Struggle against outlet portal, and conveying lower pipeline by material continues to convey material；
S4, when pressure detector detects what the pipeline pressure value of the lower pipeline of material conveying was set less than controller
During the second setting value, controller judges to block inside the lower pipeline of material conveying, chain closing hopper outlet door,
The thing blocked in negative pressure, the lower pipeline of material conveying is produced in pipe outlet door in unlatching, the upper pipeline of material conveying
Material is sent in the upper pipeline of material conveying by several cross over pipes, and conveying upper pipeline by material continues to convey material
Into feed bin；Now, continue to detect the pipeline pressure value in the lower pipeline of material conveying, treat that material conveys down tube
After road is unobstructed, its pipeline pressure value is just not less than the second setting value, and now the upper pipeline of closing goes out controller automatically
Mouth door, and hopper outlet door is opened, make system recover to convey the program of lower pipeline material by material.
First setting value is the negative-pressure air-flow in the lower pipeline of material conveying when material-transporting system is normally run
Minimal pressure force value；
Second setting value is less than first setting value.
Beneficial effects of the present invention：
Prior art can only be dredged when occurring conveyance conduit plugging fault by artificial remove pipeline
It is logical.Overhaul difficulty very big, section of tubing is related to high-altitude dangerous operation, and dust flies during pipe-dredging
Raise, pollute environment.The present invention by conveyance conduit be set to above and below two layers, spent material is defeated during normal operation
Lower pipeline is sent to carry out material conveying.Once the lower pipeline of material conveying is blocked, the upper pipeline of material conveying is opened
Outlet valve, the material that will be blocked in the lower pipeline of material conveying using negative pressure is transported to feed bin, treats material
After the lower pipeline of conveying is unobstructed, controller can recover to convey the program of lower pipeline material by material automatically.
System realizes the function of automatic dredging, so as to solve the problem of Pneumatic conveying pipeline is blocked, it is to avoid stop
Labour repairing brought economic loss, it is to avoid the life that artificial maintenance is produced is dangerous and environmental pollution shows
As occurring.
To further illustrate above-mentioned purpose, design feature and the effect of the present invention, below with reference to accompanying drawing to this
Invention is described in detail.
Brief description of the drawings
Fig. 1 is the structural representation of existing material-transporting system；
Fig. 2 is the operating method schematic diagram of existing material-transporting system；
Fig. 3 is to be of the invention from the structural representation for dredging material-transporting system；
Fig. 4 is the present invention from dredging material-transporting system from dredging method schematic flow sheet.
Embodiment
The embodiment of the present invention is described in detail with reference to the accompanying drawing of embodiment.
The present invention by conveyance conduit be arranged to above and below two layers, even lower floor's pipeline buildup block, still can
Buildup is conveyed by upper strata pipeline, so as to ensure the normal operation of whole induction system.
Referring to Fig. 3, dredging material-transporting system certainly of the invention, it includes feed bin 21, the top of feed bin 21
Provided with filter bag 213, the top of feed bin 21 is provided with filter bag blowback system 212 (with instrument air blowback)；
Hopper 26, the built-in material conveyed；
The lower pipeline 23 of material conveying, its entrance point passes through hopper outlet 25 (electric and pneumatic valves) of door and material
Bucket 26 is connected, the material in conveyor hopper 26；Its port of export passes through lower pipe outlet door 214 and feed bin 21
Connection；Pressure detector 22 is provided with the lower pipeline 23 of material conveying；
The upper pipeline 28 of material conveying, is set in parallel in the top of the lower pipeline 23 of material conveying, and material is conveyed
It is interconnected between the upper lower pipeline 23 of pipeline 28 and material conveying by several cross over pipes 24；In material conveying
The entrance point of pipeline 28 is provided with closure plate 27；Its port of export is connected by upper pipe outlet door 29 with feed bin 21；
Negative-pressure air fan 210, it is connected by bin outlet pipeline 211 with feed bin 21 in the top of filter bag 213,
Make to produce negative-pressure air-flow in the lower pipeline 23 of material conveying and the upper pipeline 28 of material conveying；
The hopper outlet door 25, negative-pressure air fan 210, lower pipe outlet door 214, upper pipe outlet door 29
And the import and export door of feed bin is by controller control (not shown).
In the above-mentioned material-transporting system from dredging, the lower pipeline 23 of material conveying leads to the upper pipeline 28 of material conveying
Several cross over pipes 24 are crossed to be welded to connect, cross over pipe 24 along air-flow conveying direction be in 30-45 degree inclination angle, thing
The entrance point of the upper pipeline 28 of material conveying installs closure plate 27, and closure plate 27 is welded to connect with the upper pipeline 28 of material conveying,
The upper pipe outlet door 29 of the upper port of export of pipeline 28 of material conveying is electric and pneumatic valve.
Referring to Fig. 4, the above-mentioned method flow from dredging material-transporting system progress from dredging is as follows：
S1, by the chain unlatching negative-pressure air fan 210 of controller when induction system operation starts, hopper outlet door 25,
Lower pipe outlet door 214, the import and export door of feed bin simultaneously closes upper pipe outlet door 29, and negative-pressure air fan 210 leads to
Crossing feed bin outlet conduit 211 makes to produce negative pressure in the lower pipeline 23 of material conveying；
S2, the pipe that the pressure detector 22 installed in the lower pipeline 23 of material conveying is detected is differentiated by controller
Whether road pressure value (pressure value of negative-pressure air-flow) is less than the first setting value that controller is set, if do not had
Less than the first setting value, then induction system is normally run, and the negative-pressure air-flow in the lower pipeline 23 of material conveying is carried
Material enters in feed bin 21, and partial material is collected by filter bag 213, is blown off by filter bag blowback system 212
In feed bin 21；
S3, if the pipeline pressure value in the lower pipeline 23 of material conveying is less than the first setting value, controller judges
The blanking of hopper 26 is too fast, closes hopper outlet door 25；Continue to detect the pipeline in the lower pipeline 23 of material conveying
Pressure value, always until when the pipeline pressure value of the lower pipeline of material conveying is not less than the first setting value, controller
Hopper outlet door 25 is automatically opened up, conveying lower pipeline 23 by material continues to convey material；
S4, when pressure detector 22 detects that the pipeline pressure value of the lower pipeline of material conveying is set less than controller
The second setting value when, controller judges that the lower inside of pipeline 23 of material conveying is blocked, chain closing hopper outlet
Pipe outlet door 29 in door 25, unlatching, now, produces negative pressure, material is defeated in the upper pipeline 28 of material conveying
The material blocked in lower pipeline 23 is sent to be sent to by several cross over pipes 24 in the upper pipeline 28 of material conveying, by thing
The upper pipeline 28 of material conveying continues to transport material in feed bin 21；Now, continue to detect material conveying down tube
Pipeline pressure value in road 23, after the lower pipeline 23 of material conveying is unobstructed, its pipeline pressure value would not be low
In the second setting value, now controller can close pipe outlet door 29 automatically, and open hopper outlet door
25, make system recover to convey the program that lower pipeline 23 conveys material by material.
First setting value is the negative-pressure air-flow in the lower pipeline of material conveying when material-transporting system is normally run
Minimal pressure force value；Second setting value is less than the first setting value.Citing：When material-transporting system is normally run
The pressure value of negative-pressure air-flow in the lower pipeline of material conveying is between -18kPa to -40kPa, then：First setting
Value=- 40kPa；Second setting value=- 50kPa.
The present invention by conveyance conduit be set to above and below two layers, the lower pipeline of spent material conveying enters during normal operation
Row material is conveyed.Once the lower pipeline of material conveying is blocked, the outlet valve of the upper pipeline of material conveying is opened,
The material being blocked in the lower pipeline of material conveying is transported to feed bin using negative pressure, treats that the lower pipeline of material conveying leads to
After smooth, controller can recover to convey the program of lower pipeline material by material automatically, realize system
The function of automatic dredging, so as to solve the problem of Pneumatic conveying pipeline is blocked.
Those of ordinary skill in the art is it should be appreciated that the embodiment of the above is intended merely to explanation originally
The purpose of invention, and be not used as limitation of the invention, if in the essential scope of the present invention, to
Change, the modification of the upper embodiment will all fall in the range of the claim of the present invention.
Claims (6)
1. a kind of from dredging material-transporting system, it includes feed bin, and the top of feed bin is provided with filter bag, feed bin
Top is provided with filter bag blowback system, it is characterised in that also include：
Hopper, the built-in material conveyed；
The lower pipeline of material conveying, its entrance point is connected by hopper outlet door with the hopper, in conveyor hopper
Material；Its port of export is connected by lower pipe outlet door with the feed bin；It is provided with the lower pipeline of material conveying
Pressure detector；
The upper pipeline of material conveying, is set in parallel in the top of the lower pipeline of material conveying, and the upper pipeline of material conveying
It is interconnected after being welded between the lower pipeline of material conveying by several cross over pipes；Material conveys entering for upper pipeline
Weld a closure plate in mouth end；Its port of export is connected by upper pipe outlet door with feed bin；
Negative-pressure air fan, it is connected by bin outlet pipeline with the top of feed bin, make the lower pipeline of material conveying and
Negative-pressure air-flow is produced in the upper pipeline of material conveying；
The hopper outlet door, negative-pressure air fan, lower pipe outlet door, upper pipe outlet door and feed bin enter
Outlet portal is by controller control.
2. it is as claimed in claim 1 from dredging material-transporting system, it is characterised in that：
The hopper outlet door is electric and pneumatic valve.
3. it is as claimed in claim 1 from dredging material-transporting system, it is characterised in that：
The cross over pipe along air-flow conveying direction be in 30-45 degree inclination angle.
4. it is as claimed in claim 1 from dredging material-transporting system, it is characterised in that：
The upper pipe outlet door is electric and pneumatic valve.
5. it is a kind of as described in any one of Claims 1-4 from dredging material-transporting system from dredging method,
It is characterized in that including below scheme：
S1, by the chain unlatching negative-pressure air fan of controller when induction system operation starts, hopper outlet door, down tube
Road outlet portal, the import and export door of feed bin, and upper pipe outlet door is closed, the negative-pressure air fan is gone out by feed bin
Mouth pipeline makes to produce negative pressure in the lower pipeline of material conveying；
S2, differentiates that the pipeline pressure value that the pressure detector in the lower pipeline of material conveying is detected is by controller
No the first setting value set less than controller, if being not below the first setting value, induction system is normal
Negative-pressure air-flow in operation, the lower pipeline of material conveying carries material and entered in feed bin；
S3, if the pipeline pressure value in the lower pipeline of material conveying is less than the first setting value, controller judges material
The blanking that struggles against is too fast, closes hopper outlet door；Continue to detect the pipeline pressure value in the lower pipeline of material conveying, one
When waiting until that the pipeline pressure value of the lower pipeline of material conveying is not less than the first setting value, controller automatically opens up material
Struggle against outlet portal, and conveying lower pipeline by material continues to convey material；
S4, when pressure detector detects what the pipeline pressure value of the lower pipeline of material conveying was set less than controller
During the second setting value, controller judges to block inside the lower pipeline of material conveying, chain closing hopper outlet door,
The thing blocked in negative pressure, the lower pipeline of material conveying is produced in pipe outlet door in unlatching, the upper pipeline of material conveying
Material is sent in the upper pipeline of material conveying by several cross over pipes, and conveying upper pipeline by material continues to convey material
Into feed bin；Now, continue to detect the pipeline pressure value in the lower pipeline of material conveying, treat that material conveys down tube
After road is unobstructed, its pipeline pressure value is just not less than the second setting value, and now the upper pipeline of closing goes out controller automatically
Mouth door, and hopper outlet door is opened, make system recover to convey the program of lower pipeline material by material.
6. it is as claimed in claim 1 from dredging material-transporting system from dredging method, it is characterised in that：
First setting value is the negative-pressure air-flow in the lower pipeline of material conveying when material-transporting system is normally run
Minimal pressure force value；
Second setting value is less than first setting value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610177279.XA CN107226353B (en) | 2016-03-25 | 2016-03-25 | It is a kind of from dredging material-transporting system and its from dredging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610177279.XA CN107226353B (en) | 2016-03-25 | 2016-03-25 | It is a kind of from dredging material-transporting system and its from dredging method |
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| Publication Number | Publication Date |
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| CN107226353A true CN107226353A (en) | 2017-10-03 |
| CN107226353B CN107226353B (en) | 2019-08-27 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108584443A (en) * | 2018-04-16 | 2018-09-28 | 江苏师范大学 | A kind of Pneumatic conveying pipeline blocks dredging system and method |
| CN110775642A (en) * | 2019-09-18 | 2020-02-11 | 厦门捷盛龙自动化设备有限公司 | Vacuum negative pressure conveyor for metal waste of punch press |
| CN112173724A (en) * | 2020-09-17 | 2021-01-05 | 宏工科技股份有限公司 | Control system and method for negative pressure conveying system and storage medium |
| CN113844898A (en) * | 2021-09-15 | 2021-12-28 | 北京首钢股份有限公司 | Anti-blocking discharging device and using method thereof |
| CN116374634A (en) * | 2023-06-07 | 2023-07-04 | 常州海盟塑业有限公司 | Positive pressure pneumatic conveying system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108584443A (en) * | 2018-04-16 | 2018-09-28 | 江苏师范大学 | A kind of Pneumatic conveying pipeline blocks dredging system and method |
| CN110775642A (en) * | 2019-09-18 | 2020-02-11 | 厦门捷盛龙自动化设备有限公司 | Vacuum negative pressure conveyor for metal waste of punch press |
| CN112173724A (en) * | 2020-09-17 | 2021-01-05 | 宏工科技股份有限公司 | Control system and method for negative pressure conveying system and storage medium |
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| CN113844898A (en) * | 2021-09-15 | 2021-12-28 | 北京首钢股份有限公司 | Anti-blocking discharging device and using method thereof |
| CN113844898B (en) * | 2021-09-15 | 2024-05-24 | 北京首钢股份有限公司 | Anti-blocking discharging device and using method thereof |
| CN116374634A (en) * | 2023-06-07 | 2023-07-04 | 常州海盟塑业有限公司 | Positive pressure pneumatic conveying system |
| CN116374634B (en) * | 2023-06-07 | 2023-09-29 | 常州海盟塑业有限公司 | Positive pressure pneumatic conveying system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107226353B (en) | 2019-08-27 |
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