CN115215101A - Zinc powder remote pneumatic conveying system adopting nitrogen protection - Google Patents
Zinc powder remote pneumatic conveying system adopting nitrogen protection Download PDFInfo
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- CN115215101A CN115215101A CN202210736165.XA CN202210736165A CN115215101A CN 115215101 A CN115215101 A CN 115215101A CN 202210736165 A CN202210736165 A CN 202210736165A CN 115215101 A CN115215101 A CN 115215101A
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- zinc powder
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 124
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 62
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 239000001301 oxygen Substances 0.000 claims description 20
- 229910052760 oxygen Inorganic materials 0.000 claims description 20
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 19
- 230000001133 acceleration Effects 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 5
- 230000001502 supplementing effect Effects 0.000 claims description 4
- -1 nitrogen-protected zinc Chemical class 0.000 claims 1
- 239000000463 material Substances 0.000 description 24
- 238000007599 discharging Methods 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000013589 supplement Substances 0.000 description 8
- 230000005484 gravity Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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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
- B65G53/34—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
- B65G53/36—Arrangements of containers
-
- 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
- B65G53/40—Feeding or discharging devices
- B65G53/46—Gates or sluices, e.g. rotary wheels
-
- 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
- B65G53/40—Feeding or discharging devices
- B65G53/48—Screws or like rotary conveyors
-
- 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
-
- 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
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/20—Auxiliary treatments, e.g. aerating, heating, humidifying, deaerating, cooling, de-watering or drying, during loading or unloading; Loading or unloading in a fluid medium other than air
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Transport Of Granular Materials (AREA)
Abstract
The invention discloses a zinc powder remote pneumatic conveying system adopting nitrogen protection, which comprises a fan, a plurality of discharge bins and a plurality of storage bins, wherein the air outlet end of the fan is connected with a conveying pipeline, the discharge hole of each discharge bin is connected with the conveying pipeline, the conveying pipeline is divided into a plurality of conveying pipeline branches through a multi-way joint after the discharge bins, each conveying pipeline branch is correspondingly connected with the air inlet of each storage bin, an air inlet valve is arranged on each conveying pipeline branch, the air outlet of each storage bin is connected with the air inlet end of the fan through a conveying pipeline, an air outlet valve is arranged behind the air outlet of each storage bin, a nitrogen tank is connected onto the conveying pipeline and is positioned in front of the air inlet end of the fan. The invention adopts the nitrogen as the conveying medium for closed cycle use, not only can realize the long-distance pneumatic conveying of the zinc powder, but also can convey the zinc powder in any appointed discharge bin to any appointed storage bin as required.
Description
Technical Field
The invention relates to the technical field of powder material conveying, in particular to a zinc powder remote pneumatic conveying system adopting nitrogen protection.
Background
Pneumatic conveying systems are generally used for low specific gravity (generally specific gravity ≦ 1.5 g/cm) 3 ) And the conveying of powder materials in a short distance (generally not more than 20 m) can be realized, and the conveying method can be only used for conveying single points to single points or multi-points to single points. If powder at multiple positions is to be conveyed to the same silo, multiple conveying lines are required to be established. When powder materials at each discharging point need to be conveyed to different bin positions respectively, only separate conveying lines can be built for each storage bin respectively. Therefore, the conveying system is complex and high in construction cost, and all the storage bins cannot be mutually switched. In addition, the common pneumatic conveying system usually adopts an open-circuit mode and takes air as a conveying medium, is not suitable for materials sensitive to oxygen and moisture and is not suitable for powdery materials with large specific gravity and adhesiveness such as zinc powder (the specific gravity is 3.2-3.5 g/cm) 3 ) The conveyance of (2).
Disclosure of Invention
The invention aims to: the defect is more when using to present ordinary pneumatic conveying system, and can't be applied to the problem that zinc powder production was carried, provides a zinc powder remote pneumatic conveying system who adopts nitrogen protection, and this pneumatic conveying system not only can realize the remote transport of zinc powder, can be as required with arbitrary appointed zinc powder in the feed bin carry to in the storage silo appointed wantonly moreover.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides an adopt nitrogen protection's distant pneumatic conveyor system of zinc powder, includes fan, a plurality of feed bin and a plurality of storage silo, pipeline, every are connected to the air-out end of fan the discharge gate that goes out the feed bin links to each other with pipeline, pipeline divides into a plurality of pipeline branch roads through many union coupling after going out the feed bin, and every pipeline branch road corresponds and links to each other with the air intake of every storage silo, is equipped with the air inlet valve on every pipeline branch road, and the air inlet end that the air outlet of every storage silo passes through pipeline and fan links to each other, and is equipped with the air outlet valve behind the air outlet of every storage silo, the last nitrogen gas jar that is connected with of pipeline, the nitrogen gas jar is located before the air inlet end of fan.
According to the invention, nitrogen is adopted as a conveying medium for closed cycle use, so that the conveying of zinc powder can be protected, the nitrogen is saved, the production cost is reduced, and when the storage bins corresponding to the discharge bins need to be switched, the air outlet valve of the storage bin needing fixed-point conveying and the air inlet valve of the corresponding branch of the conveying pipeline are opened, the air outlet valves and the air inlet valves corresponding to other storage bins are closed, and the corresponding discharge bins are opened to enable the zinc powder to enter the conveying pipeline, so that the zinc powder can be conveyed to the specified storage bins by means of the nitrogen which flows circularly; this pneumatic conveying system not only satisfies zinc powder production and carries the operation requirement, has realized the remote pneumatic conveying of zinc powder, can be as required carry the zinc powder in the arbitrary appointed feed bin to in the arbitrary appointed storage silo moreover.
As a preferable scheme of the invention, the zinc powder remote pneumatic conveying system adopting nitrogen protection further comprises a PLC control system, and the PLC control system is connected with the fan, the discharge bin, the air inlet valve and the air outlet valve through a control circuit. Through adopting above-mentioned technical scheme for only need modify the storage silo that each goes out the feed bin correspondence on operating panel and can accomplish the selection of feed bin, thereby realize the automatic switch-over operation between each feed bin.
As a preferable scheme of the invention, the zinc powder remote pneumatic conveying system adopting nitrogen protection further comprises a radiator and a thermometer, and the radiator and the thermometer are connected with a conveying pipeline. The radiator is used for radiating and cooling the whole system, and the thermometer monitors the system temperature in real time.
As a preferable scheme of the invention, the zinc powder remote pneumatic conveying system adopting nitrogen protection further comprises a pressure gauge and a pressure relief valve, and the pressure gauge and the pressure relief valve are connected with a conveying pipeline. The system pressure is monitored by setting a pressure gauge, and when the system pressure is ultrahigh, automatic exhaust is performed by opening a pressure release valve.
As a preferable scheme of the invention, the zinc powder remote pneumatic conveying system adopting nitrogen protection further comprises an oxygen concentration detector and a nitrogen supplement valve, wherein the oxygen concentration detector is arranged on the conveying pipeline, and the nitrogen supplement valve is arranged behind an outlet of the nitrogen tank. The oxygen content of the system is monitored by arranging an oxygen concentration detector, and when the oxygen concentration of the system is detected to exceed the standard, the nitrogen is automatically filled into the system by opening a nitrogen supplementing valve.
As a preferable scheme of the invention, the discharging bin comprises a bin, a discharging valve, a spiral feeder and an accelerating chamber which are sequentially connected, and an outlet of the accelerating chamber is connected with a conveying pipeline. When the zinc powder discharging device is used, zinc powder in the storage bin enters the spiral feeder after the discharging valve is opened, then enters the acceleration chamber through the spiral feeder, and then enters the conveying pipeline through the acceleration chamber.
As a preferable scheme of the invention, the blower is a Roots blower.
As the preferred scheme of the invention, the storage bin is integrated with a dust remover, which is mainly used for separating nitrogen and zinc powder entering the storage bin, the zinc powder separated by the dust remover falls into a hopper below the storage bin, and the purified nitrogen returns to the conveying pipeline for recycling.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
according to the invention, nitrogen is adopted as a conveying medium for closed cycle use, so that the conveying of zinc powder can be protected, the nitrogen is saved, the production cost is reduced, and when the storage bins corresponding to the discharge bins need to be switched, the air outlet valve of the storage bin needing fixed-point conveying and the air inlet valve of the corresponding branch of the conveying pipeline are opened, the air outlet valves and the air inlet valves corresponding to other storage bins are closed, and the corresponding discharge bins are opened to enable the zinc powder to enter the conveying pipeline, so that the zinc powder can be conveyed to the specified storage bins by means of the nitrogen which flows circularly; this pneumatic conveying system not only satisfies zinc powder production and carries the operation requirement, has realized the remote pneumatic conveying of zinc powder, can be as required carry the zinc powder in the arbitrary appointed feed bin to in the arbitrary appointed storage silo moreover.
Drawings
FIG. 1 is a schematic diagram of a nitrogen protected zinc powder remote pneumatic conveying system.
Fig. 2 is a schematic view of the discharge bin of fig. 1.
The mark in the figure is: 1-discharge bin, 1.1-storage bin, 1.2-discharge valve, 1.3-screw feeder, 1.4-acceleration chamber, 2-discharge bin, 3-discharge bin, 4-conveying pipeline, 5-Roots blower, 6-nitrogen tank, 7-pressure release valve, 8-thermometer, 9-pressure gauge, 10-oxygen concentration detector, 11-storage bin, 12-storage bin, 13-storage bin, 14-air inlet valve, 15-air inlet valve, 16-air inlet valve, 17-finned radiator, 18-air outlet valve, 19-air outlet valve, 20-air outlet valve, 21-nitrogen supplement valve.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Examples
The embodiment provides a zinc powder remote pneumatic conveying system adopting nitrogen protection;
as shown in fig. 1 and fig. 2, the zinc powder remote pneumatic conveying system using nitrogen protection in this embodiment includes a roots blower 5, three discharge bins and three storage bins, an air outlet end of the roots blower 5 is connected to a conveying pipeline 4, a discharge port of each discharge bin is connected to a conveying pipeline, the conveying pipeline is divided into a plurality of conveying pipeline branches through multi-way joints after the discharge bins, each conveying pipeline branch is correspondingly connected to an air inlet of each storage bin, an air inlet valve is arranged on each conveying pipeline branch, an air outlet of each storage bin is connected to an air inlet end of the roots blower 5 through a conveying pipeline, an air outlet valve is arranged behind an air outlet of each storage bin, a nitrogen tank 6 is connected to the conveying pipeline 4, and the nitrogen tank 6 is located in front of the air inlet end of the roots blower 5.
According to the invention, nitrogen is adopted as a conveying medium for closed cycle use, so that the conveying of zinc powder can be protected, the nitrogen is saved, the production cost is reduced, and when the storage bins corresponding to each discharge bin need to be switched, only the air outlet valve of the storage bin needing fixed-point conveying and the air inlet valve of the corresponding conveying pipeline branch are required to be opened, the air outlet valves and the air inlet valves corresponding to other storage bins are closed, and then the corresponding discharge bins are opened to enable the zinc powder to enter the conveying pipeline, so that the zinc powder can be conveyed into the designated storage bin by means of the nitrogen which circularly flows; this pneumatic conveying system not only satisfies zinc powder production and carries the operation requirement, has realized the remote pneumatic conveying of zinc powder, can be as required carry the zinc powder in the arbitrary appointed feed bin to in the arbitrary appointed storage silo moreover.
In this embodiment, the zinc powder remote pneumatic conveying system adopting nitrogen protection further comprises a PLC control system, and the PLC control system is connected with the Roots blower 5, the discharge bin, the air inlet valve and the air outlet valve through a control circuit. Through adopting above-mentioned technical scheme for only need modify the storage silo that each goes out the feed bin correspondence on operating panel and can accomplish the selection of feed bin, thereby realize the automatic switch-over operation between each feed bin.
In this embodiment, the system for remotely pneumatically conveying zinc powder protected by nitrogen further comprises a finned heat sink 17 and a thermometer 8, wherein the finned heat sink 17 and the thermometer 8 are connected with the conveying pipeline 4. The finned radiator is used for radiating and cooling the whole system, and the thermometer monitors the temperature of the system in real time. Specifically, the finned radiator 17 is positioned on a conveying pipeline behind the storage bin, the thermometer 8 is positioned on the conveying pipeline between the storage bin and the finned radiator, and the thermometer 8 is electrically connected with the controller, so that the system temperature condition is fed back to the controller in real time, and the alarm is automatically sent out when the system temperature is abnormal.
In this embodiment, the zinc powder remote pneumatic conveying system protected by nitrogen further comprises a pressure gauge 9 and a pressure release valve 7, wherein the pressure gauge 9 and the pressure release valve 7 are connected with the conveying pipeline 4. The system pressure is monitored by arranging the pressure gauge, and when the system pressure is ultrahigh, automatic exhaust is performed by opening the pressure release valve. Specifically, the pressure gauge 9 and the pressure relief valve 7 are also arranged on a conveying pipeline between the rear part of the storage bin and the finned radiator 17, and the press machine 9 and the pressure relief valve 7 are electrically connected with the controller so as to feed back the system pressure condition to the controller in real time and automatically open the pressure relief valve for exhausting when the system pressure is ultrahigh.
In this embodiment, the zinc powder remote pneumatic conveying system protected by nitrogen further includes an oxygen concentration detector 10 and a nitrogen supplement valve 21, the oxygen concentration detector 10 is disposed on the conveying pipeline 4, and the nitrogen supplement valve 21 is disposed behind an outlet of the nitrogen tank 6. The oxygen content of the system is monitored by arranging an oxygen concentration detector, and when the oxygen concentration of the system is detected to exceed the standard, the nitrogen is automatically filled into the system by opening a nitrogen supplementing valve. Specifically, the oxygen concentration detector 10 is located on a conveying pipeline between the rear part of the storage bin and the finned radiator 17, and the oxygen concentration detector 10 and the nitrogen supplement valve 21 are electrically connected with the controller, so that the oxygen content of the system can be fed back to the controller in real time, and the nitrogen supplement valve can be automatically opened to supplement nitrogen to the system when the oxygen concentration of the system exceeds the standard.
In this embodiment, the discharging bin 1 includes a bin 1.1, a discharging valve 1.2, a spiral feeder 1.3 and an acceleration chamber 1.4 that are connected in sequence, and an outlet of the acceleration chamber 1.4 is connected with a conveying pipeline 4. When the zinc powder discharging device is used, zinc powder in the storage bin enters the spiral feeder after the discharging valve is opened, then enters the acceleration chamber through the spiral feeder, and then enters the conveying pipeline through the acceleration chamber. Specifically, baiting valve 1.2 sets up on feed bin 1.1 bottom discharging pipe, and the discharging pipe links to each other with screw feeder 1.3's feed inlet, accelerating chamber 1.4 is big end down structure, and accelerates chamber 1.4 upper end and screw feeder 1.3's discharge gate and link to each other, accelerates chamber 1.4 lower extreme and pipeline 4 lateral wall and links to each other to accelerating chamber 1.4 has the side of an slope (accelerating chamber inside and pipeline air current direction relative one side be the inclined plane promptly), makes zinc powder entering direction and air current direction be the acute angle state, and is not perpendicular with the air current direction, thereby reduces the resistance that zinc powder got into pipeline.
In this embodiment, each storage bin is integrated with a dust remover, which is mainly used for separating nitrogen and zinc powder entering the storage bin, the zinc powder separated by the dust remover falls into a hopper below the storage bin, and the purified nitrogen returns to the conveying pipeline for recycling.
The operation is specifically as follows: 1) Opening an air outlet valve 18 and an air inlet valve 14 on a storage bin 11, starting a Roots blower 5, opening a discharge valve 1.2 below a discharge bin 1, starting a spiral feeder 1.3, feeding materials in the discharge bin 1 into a conveying pipeline 4 through a spiral, conveying the materials to the storage bin 11 through air flow driving, separating the materials by a dust remover, then enabling the materials to fall into a hopper below, returning purified gas into the conveying pipeline 4 again, circulating the process until the materials in the discharge bin 1 are conveyed, closing the discharge valve 1.2 below the discharge bin 1, and stopping the spiral feeder 1.3;
2) Opening an air outlet valve 19 and an air inlet valve 15 on a storage bin 12, closing an air outlet valve 18 and an air inlet valve 14 on the storage bin 11, opening a discharge valve below a discharge bin 2, starting a spiral feeder, feeding the material in the discharge bin 2 into a conveying pipeline through spiral, conveying the material to the storage bin 12 through air flow driving, separating the material by a dust remover, then enabling the material to fall into a hopper below, returning the purified clean gas into the conveying pipeline 4 again, circulating the process until the material in the discharge bin 2 is conveyed, closing the discharge valve below the discharge bin 2, and stopping the spiral feeder;
3) Opening an air outlet valve 20 and an air inlet valve 16 on a storage bin 13, closing an air outlet valve 19 and an air inlet valve 15 on a storage bin 12, opening a discharge valve below a discharge bin 3, starting a spiral feeder, feeding materials in the discharge bin 3 into a conveying pipeline through a spiral, conveying the materials to the storage bin 13 through air flow driving, separating the materials by a dust remover, then enabling the materials to fall into a hopper below, circulating the process until the materials in the discharge bin 3 are conveyed, closing the discharge valve below the discharge bin 3, and stopping the spiral feeder;
through the above operations, the material in the discharging bin 1 is conveyed to the storage bin 11, the material in the discharging bin 2 is conveyed to the storage bin 12, and the material in the discharging bin 3 is conveyed to the storage bin 13.
When the storage bins corresponding to the discharge bins need to be switched, the air outlet valves of the storage bins needing fixed-point conveying and the air inlet valves of the corresponding conveying pipeline branches need to be opened, the air outlet valves and the air inlet valves corresponding to other storage bins are closed, the discharge valves corresponding to the lower portions of the discharge bins are opened, the spiral feeder is started, and materials in any specified discharge bin can be conveyed to any specified storage bin.
In this embodiment, the temperature gauge 8, the pressure gauge 9, and the oxygen concentration detector 10, which are installed on the delivery pipe of the pneumatic delivery system, jointly monitor the system status on line. When the thermometer 8 detects that the temperature of the system is abnormal, the system automatically alarms and stops; when the pressure gauge 9 detects that the system pressure is ultrahigh, the pressure release valve 7 is automatically opened to exhaust; when the oxygen concentration detector 10 detects that the oxygen concentration of the system exceeds the standard, the nitrogen supplementing valve 21 is automatically opened to charge nitrogen into the system.
All valves and motors in the pneumatic conveying system in the embodiment are controlled by a PLC control system which is developed by oneself, the storage bins corresponding to the discharge bins are modified on an operation panel, and all operations can be executed only by directly starting. The zinc powder is successfully conveyed to a storage bin which is 120m away in practical production, and free switching from any point to any point can be realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The utility model provides an adopt distant pneumatic conveying system of zinc powder of nitrogen protection, a serial communication port, including fan, a plurality of feed bin and a plurality of storage silo, pipeline, every are connected to the air-out end of fan the discharge gate that goes out the feed bin links to each other with pipeline, pipeline divides into a plurality of pipeline branch roads through multi-ported connector after going out the feed bin, and every pipeline branch road corresponds and links to each other with the air intake of every storage silo, is equipped with the air inlet valve on every pipeline branch road, and the air inlet end that pipeline and fan were passed through to the air outlet of every storage silo links to each other, and is equipped with the air outlet valve behind the air outlet of every storage silo, the last nitrogen tank that is connected with of pipeline, the nitrogen tank is located before the air inlet end of fan.
2. The nitrogen-protected zinc powder remote pneumatic conveying system as claimed in claim 1, further comprising a PLC control system, wherein the PLC control system is connected with the fan, the discharge bin, the air inlet valve and the air outlet valve through a control circuit.
3. The system for the remote pneumatic conveying of zinc powder protected with nitrogen as defined in claim 2, further comprising a heat sink and a temperature gauge, said heat sink and temperature gauge being connected to the conveying pipe.
4. The system for the remote pneumatic transportation of zinc powder protected by nitrogen according to claim 3, further comprising a pressure gauge and a pressure relief valve, wherein said pressure gauge and said pressure relief valve are connected to the transportation pipeline.
5. The system for remotely pneumatically conveying zinc powder under nitrogen protection as claimed in claim 4, further comprising an oxygen concentration detector disposed on the conveying pipeline and a nitrogen supplementing valve disposed behind the outlet of the nitrogen tank.
6. The system for remotely pneumatically conveying zinc powder under nitrogen protection according to any of claims 1 to 5, wherein the discharge bin comprises a storage bin, a discharge valve, a screw feeder and an acceleration chamber, which are connected in sequence, and the outlet of the acceleration chamber is connected with a conveying pipeline.
7. The system for the remote pneumatic transportation of zinc powder protected by nitrogen according to any one of claims 1 to 5, characterized in that the blower is a Roots blower.
8. The system for the remote pneumatic conveying of zinc powder protected by nitrogen as claimed in any one of claims 1 to 5, characterized in that the storage silo is integrated with a dust remover.
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| CN202210736165.XA CN115215101A (en) | 2022-06-15 | 2022-06-15 | Zinc powder remote pneumatic conveying system adopting nitrogen protection |
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| CN202210736165.XA CN115215101A (en) | 2022-06-15 | 2022-06-15 | Zinc powder remote pneumatic conveying system adopting nitrogen protection |
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