CN111039023B - Positive pressure powder conveying device - Google Patents
Positive pressure powder conveying device Download PDFInfo
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- CN111039023B CN111039023B CN201911391016.9A CN201911391016A CN111039023B CN 111039023 B CN111039023 B CN 111039023B CN 201911391016 A CN201911391016 A CN 201911391016A CN 111039023 B CN111039023 B CN 111039023B
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- pipe
- pump body
- air source
- conveying
- powder
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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
- B65G53/16—Gas pressure systems operating with fluidisation of the materials
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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
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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
- B65G53/36—Arrangements of containers
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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
- B65G53/40—Feeding or discharging devices
- B65G53/46—Gates or sluices, e.g. rotary wheels
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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
- B65G53/52—Adaptations of pipes or tubes
-
- 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
Abstract
The invention relates to the technical field of powder material conveying, in particular to a positive pressure powder conveying device which comprises a pump body, a mixed flow bin arranged below the pump body, a conveying inner pipe penetrating through the pump body and extending into the mixed flow bin, and a main air source pipe with one end extending into the mixed flow bin, wherein the main air source pipe and the conveying inner pipe are arranged opposite to each other at the end part in the mixed flow bin, a fluidization assembly is arranged at the lower position in the pump body, powder in the pump body is sprayed between the pump body and the mixed flow bin on the side edge of the fluidization component through a material spraying assembly between the conveying inner pipe and the main air source pipe, and the powder is sprayed into the conveying inner pipe and discharged out of the pump body by positive pressure of an air source in the main air source pipe. The invention has the advantages that: according to the invention, the powder entering the pump body is sprayed between the conveying inner pipe and the main air source pipe through the material spraying assembly under the action of the fluidization assembly, and the positive pressure gas in the main air source pipe directly acts on the powder, so that the method is simple, the operation is convenient, and the positive pressure powder conveying is realized.
Description
Technical Field
The invention relates to the technical field of powder material conveying, in particular to a positive pressure powder conveying device.
Background
The pneumatic conveying is to convey granular material in the direction of air flow in a closed pipeline by utilizing the energy of the air flow, and is a specific application of fluidization technology. The pneumatic conveying device has simple structure and convenient operation, can be used for horizontal, vertical or inclined conveying, and can simultaneously carry out physical operations or certain chemical operations such as heating, cooling, drying, airflow classification and the like on materials in the conveying process. The pneumatic conveying is mainly characterized by large conveying capacity, long conveying distance and high conveying speed; it is possible to charge at one location and then discharge at multiple locations. Due to the characteristics of pneumatic transmission, the pneumatic transmission is widely applied to the aspects of powder and granular material transmission, such as departments of electric power, chemical industry, metallurgy, cement, grain and the like.
Due to the fact that the types of conveyed materials are different, the quality of the materials in unit volume is different, when the materials are continuously added, how to convey the powder is achieved, in addition, in the prior art, the powder conveying technology adopts a negative pressure mode to achieve powder conveying, and how to use positive pressure to achieve powder conveying needs to be solved.
Disclosure of Invention
In order to realize positive pressure powder conveying, the invention provides a positive pressure powder conveying device, which adopts the following technical scheme:
the positive pressure powder conveying device comprises a pump body, a mixed flow bin arranged below the pump body, a conveying inner pipe penetrating through the pump body and extending into the mixed flow bin, and a main gas source pipe extending into the mixed flow bin, wherein the end part of the main gas source pipe and the end part of the conveying inner pipe in the mixed flow bin are arranged oppositely, a fluidization assembly is arranged at the lower position in the pump body, powder in the pump body is sprayed between the conveying inner pipe and the main gas source pipe through a material spraying assembly between the pump body and the mixed flow bin on the side edge of the fluidization component, and the powder is blown into the conveying inner pipe and discharged out of the pump body through positive pressure of a gas source in the main gas source pipe.
Preferably, the fluidization assembly comprises a first air source branch pipe and a fluidization pipe, wherein the first air source branch pipe is connected with the main air source pipe, and the first air source branch pipe is connected with the fluidization pipe arranged in the pump body.
The optimized air conditioner further comprises a second air source branch pipe and a discharge conveying pipe communicated with the conveying inner pipe, wherein one end of the second air source branch pipe is connected with the discharge conveying pipe, and the other end of the second air source branch pipe is connected with the main air source pipe.
Preferably, the material injection assembly comprises a communicating pipe, an injection pipe and a third air source branch pipe, one end of the communicating pipe is communicated with the pump body close to the fluidization assembly, the other end of the communicating pipe is connected with the middle of the injection pipe, one end of the injection pipe is connected with the main air source pipe through the third air source branch pipe, the other end of the injection pipe extends into the mixed flow bin, and air flow in the third air source branch pipe is used as driving force to inject powder between the conveying inner pipe and the main air source pipe.
Preferably, a flow stabilizer is arranged between the injection pipe and the communicating pipe.
Preferably, a pressure sensor is arranged in the mixed flow bin and connected with a control cabinet, and the control end of the control cabinet is connected with a current stabilizer.
The improved pump is characterized by comprising a support and supporting legs for supporting the support, wherein a weighing sensor is arranged between the support and the supporting legs, the pump body is fixed on the support, and a signal end of the weighing sensor is connected with the control cabinet.
The optimized material conveying device further comprises a material conveying pipe and an expansion joint, wherein the material conveying pipe is connected with the material conveying pipe through the expansion joint.
The optimized air pump further comprises a pressure transmitter and an exhaust valve which are arranged on the upper portion of the pump body, the signal end of the pressure transmitter and the controlled end of the exhaust valve are connected with corresponding ports of a control cabinet, and the control cabinet controls the exhaust valve to open and close.
Preferably, the feed valve of the pump body is arranged on the upper part of the pump body and is separated from the two sides of the pump body by the exhaust valve.
The invention has the advantages that:
(1) according to the invention, the powder entering the pump body is sprayed between the conveying inner pipe and the main air source pipe through the material spraying assembly under the action of the fluidization assembly, and the positive pressure gas in the main air source pipe directly acts on the powder, so that the method is simple, the operation is convenient, and the positive pressure powder conveying is realized.
(2) In the fluidization assembly, the first gas source branch pipe which is separated from the main gas source pipe is used as a gas source inlet of the fluidization pipe, so that the fluidization of the powder is realized, and the powder can be conveyed regardless of continuous feeding or intermittent feeding in the feeding valve.
(3) The concentration of the conveyed powder can be adjusted by the arrangement of the second gas source branch pipe.
(4) The third gas source branch pipe takes part of gas in the main gas source pipe as a power source to drive the fluidized gas in the pump body to enter the mixed flow bin.
(5) The flow stabilizer is used for adjusting the mixing ratio of the gas and the powder.
(6) The pressure sensor is used for detecting the pressure in the mixed flow bin, and the control cabinet adjusts the inlet amount of the air source after obtaining information.
(7) The support, the support legs and the weighing sensor are used for measuring the material level.
(8) In order to ensure the accurate weighing, the arrangement of the expansion joint can also ensure the air tightness between the conveying inner pipe and the discharging conveying pipe.
(9) The pressure transmitter, the exhaust valve and the control cabinet are arranged to ensure that the pressure of the whole pump body is within a certain threshold range, so that the phenomenon that the air pressure is too high and powder cannot be input from the feed valve is avoided.
(10) The feeding valve and the exhaust valve are arranged on two sides of the upper part of the pump body, so that powder is prevented from being carried away during exhaust.
Drawings
FIG. 1 illustrates the present invention.
The notations in the figures have the following meanings:
1-pump body 101-inlet valve 102-pressure transmitter 103-exhaust valve
2-fluidizing pipe 3-main gas source pipe 31-nozzle 32-first gas source branch pipe
33-second gas supply manifold 34-third gas supply manifold
41-injection pipe 42-communicating pipe 43-flow stabilizer 5-conveying inner pipe 6-discharging conveying pipe
71-leg 72-bracket 73-load cell
8-telescopic joint 9-control cabinet 10-pressure sensor 11-mixed flow bin
Detailed Description
As shown in figure 1, the positive pressure powder conveying device comprises a pump body 1, a mixed flow bin 11 arranged below the pump body 1 through a flange, a main gas source pipe 3, a fluidization pipe 2, a conveying inner pipe 5, a communicating pipe 42, an injection pipe 41 and a control cabinet 9, wherein a feeding valve 101 for feeding powder into the pump body 1 is arranged at the upper part of the pump body 1, and the material in the feeding valve 101 continuously or intermittently enters the pump body 1. One end of the conveying inner pipe 5 is communicated with the discharging conveying pipe 6, the other end of the conveying inner pipe penetrates through the pump body 1 and extends into the mixed flow bin 11, the end part, extending into the mixed flow bin 11, of the conveying inner pipe 5 is opposite to the end part, extending into the mixed flow bin 11, of the main air source pipe 3, and a nozzle 31 is arranged at the end part, opposite to the conveying inner pipe 5, of the main air source pipe 3. The fluidizing pipe 2 is disposed at a lower position of the pump body 1 for fluidizing the powder introduced from the feed valve 101. One end of the communicating pipe 42 is communicated with the pump body 1 near the fluidization assembly of the pump body 1, the other end is connected with the middle part of the injection pipe 41, one end of the injection pipe 41 is connected with the main air source pipe 3 through the third air source branch pipe 34, and the other end extends into the mixed flow bin 11. After the fluidized powder enters the injection pipe 41 through the communicating pipe 42, the powder is injected between the conveying inner pipe 5 and the main gas source pipe 3 by the gas flow in the third gas source branch pipe 34 as the driving force, and the powder injected from the injection pipe 41 is conveyed into the conveying inner pipe 5 by the positive pressure gas in the main gas source pipe 3 and is discharged from the discharge conveying pipe 6.
The gas source in the fluidization pipe 2 is input through a first gas source branch pipe 32 connected with the main gas source pipe 3, the gas in the fluidization pipe 2 fluidizes the material deposited at the bottom of the pump body 1, and a flow stabilizer 43 is arranged between the injection pipe 41 and the communicating pipe 42 and used for adjusting the mixing ratio of the gas and the powder.
The device further comprises a second air source branch pipe 33, one end of the second air source branch pipe 33 is connected with the main air source, the other end of the second air source branch pipe 33 is connected with the discharge conveying pipe 6, and the second air source branch pipe 33 is used for adjusting the concentration ratio of the powder.
The upper portion of the pump body 1 is provided with a pressure transmitter 102 and an exhaust valve 103, a signal end of the pressure transmitter 102 and a controlled end of the exhaust valve 103 are connected with corresponding ports of a control cabinet 9, and the control cabinet 9 controls the exhaust valve 103 to be opened and closed. A pressure sensor 10 is arranged in the mixed flow bin 11, the pressure sensor 10 is connected with a control cabinet 9, and the control cabinet 9 controls a current stabilizer 43 through data fed back by the pressure sensor 10. The feeding valve 101 of the pump body 1 is arranged at the upper part of the pump body 1 and is separated from the exhaust valve 103 at two sides of the pump body 1, so that the powder is prevented from being discharged in the exhaust process.
The device further comprises a support 72 and a support leg 71 used for supporting the support 72, a weighing sensor 73 is arranged between the support 72 and the support leg 71, the pump body 1 is fixed on the support 72, and a signal end of the weighing sensor 73 is connected with the control cabinet 9. Wherein the load cell 73 can be used for measuring the fill level.
Because the discharging conveying pipe 6 is in a fixed state, and the pump body 1 can have corresponding displacement on the support 72 along with the weight of the pump body, in order to adapt to the structure, the discharging conveying pipe 6 is connected with the conveying inner pipe 5 through the telescopic joint 8, two ends of the telescopic joint 8 are respectively connected with the discharging conveying pipe 6 and the upper end part of the pump body 1 through corresponding flanges, and the end part of the conveying inner pipe 5 is fixed on the flange on the pump body 1. Thus, when the pump body 1 and the discharge conveying pipe 6 are prevented from generating relative displacement, the conveying inner pipe 5 and the discharge conveying pipe 6 are in a sealed state.
The working principle of the device is as follows: powder is input from the feed valve 101, when the powder is positioned at the position of the fluidization pipe 2, the powder enters the communicating pipe 42 after being fluidized by the fluidization pipe 2, the flow stabilizer 43 adjusts the blanking speed of the powder, the air flow input by the third air source branch pipe 34 blows the powder to the position between the conveying inner pipe 5 and the main air source pipe 3 in the injection pipe 41, the powder is discharged from the discharging conveying pipe 6 after the conveying inner pipe 5 and the expansion joint 8 are conveyed by the air in the main air source pipe 3, and finally the concentration of the conveyed powder is adjusted through the second air source branch pipe 33.
The invention is not to be considered as limited to the specific embodiments shown and described, but is to be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The positive-pressure powder conveying device is characterized by comprising a pump body (1), a mixed flow bin (11) arranged below the pump body (1), a conveying inner pipe (5) penetrating through the pump body (1) and extending into the mixed flow bin (11), and a main air source pipe (3) with one end extending into the mixed flow bin (11), wherein the main air source pipe (3) and the end part of the conveying inner pipe (5) in the mixed flow bin (11) are arranged oppositely, a fluidization assembly is arranged at the lower position in the pump body (1), powder in the pump body (1) is sprayed between the conveying inner pipe (5) and the main air source pipe (3) through a material spraying assembly between the pump body (1) and the mixed flow bin (11) on the side of the fluidization assembly, and the powder is blown into the conveying inner pipe (5) and discharged out of the pump body (1) through the positive pressure of an air source in the main air source pipe (3).
2. The positive pressure powder conveying device according to claim 1, wherein the fluidization assembly comprises a first gas source branch pipe (32) connected with the main gas source pipe (3), and a fluidization pipe (2), and the first gas source branch pipe (32) is connected with the fluidization pipe (2) arranged in the pump body (1).
3. The positive-pressure powder conveying device according to claim 1, further comprising a second air source branch pipe (33) and a discharge conveying pipe (6) communicated with the conveying inner pipe (5), wherein one end of the second air source branch pipe (33) is connected with the discharge conveying pipe (6), and the other end is connected with the main air source pipe (3).
4. The positive-pressure powder conveying device for the powder materials of claim 1, wherein the material injection assembly comprises a communicating pipe (42), an injection pipe (41) and a third air source branch pipe (34), one end of the communicating pipe (42) is communicated with the pump body (1) close to the fluidization assembly, the other end of the communicating pipe is connected with the middle part of the injection pipe (41), one end of the injection pipe (41) is connected with the main air source pipe (3) through the third air source branch pipe (34), the other end of the injection pipe extends into the mixed flow bin (11), and the air flow in the third air source branch pipe (34) is used as a driving force to inject the powder materials between the conveying inner pipe (5) and the main air source pipe (3).
5. The positive pressure powder conveying device according to claim 4, wherein a flow stabilizer (43) is further arranged between the injection pipe (41) and the communicating pipe (42).
6. The positive-pressure powder conveying device according to claim 5, wherein a pressure sensor (10) is arranged in the flow mixing bin (11), the pressure sensor (10) is connected with the control cabinet (9), and the control end of the control cabinet (9) is connected with the flow stabilizer (43).
7. The positive-pressure powder conveying device is characterized by further comprising a support (71) and a supporting leg (72) for supporting the support (71), wherein a weighing sensor (73) is arranged between the support (71) and the supporting leg (72), the pump body (1) is fixed on the support (71), and a signal end of the weighing sensor (73) is connected with the control cabinet (9).
8. The positive-pressure powder conveying device according to claim 7, further comprising a discharging conveying pipe (6) and an expansion joint (8), wherein the discharging conveying pipe (6) is connected with the conveying inner pipe (5) through the expansion joint (8).
9. The positive-pressure powder conveying device according to claim 6, further comprising a pressure transmitter (102) and an exhaust valve (103) arranged at the upper part of the pump body (1), wherein a signal end of the pressure transmitter (102) and a controlled end of the exhaust valve (103) are connected with corresponding ports of a control cabinet (9), and the control cabinet (9) controls the exhaust valve (103) to open and close.
10. The positive-pressure powder conveying device according to claim 9, wherein the feeding valve (101) of the pump body (1) is arranged at the upper part of the pump body (1) and is separated from the exhaust valve (103) at two sides of the pump body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911391016.9A CN111039023B (en) | 2019-12-30 | 2019-12-30 | Positive pressure powder conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911391016.9A CN111039023B (en) | 2019-12-30 | 2019-12-30 | Positive pressure powder conveying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111039023A CN111039023A (en) | 2020-04-21 |
| CN111039023B true CN111039023B (en) | 2021-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911391016.9A Active CN111039023B (en) | 2019-12-30 | 2019-12-30 | Positive pressure powder conveying device |
Country Status (1)
| Country | Link |
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| CN (1) | CN111039023B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3727985A (en) * | 1972-01-03 | 1973-04-17 | Cons Eng Co | Pneumatic conveying apparatus automatically operable successively for weight responsive filling, and for activation, discharging, purging against back pressure, and venting |
| CN2043971U (en) * | 1988-09-24 | 1989-09-06 | 唐顺钦 | Fluidization pneumatic transfer pump |
| CN2317217Y (en) * | 1997-01-14 | 1999-05-05 | 冶金工业部钢铁研究总院 | High efficiency storehouse type pump conveying material in bulk |
| CA2420034C (en) * | 2003-02-18 | 2007-09-25 | Jim Mcturk | Jet pump system for forming an aqueous oil sand slurry |
| CN101628666B (en) * | 2009-08-12 | 2012-09-05 | 天津市实达电力设备有限公司 | Dense phase pneumatic conveying system of high-efficiency energy-saving heavy material |
| CN201614178U (en) * | 2009-12-24 | 2010-10-27 | 北京中冶设备研究设计总院有限公司 | Powder injection conveyor |
| CN203173497U (en) * | 2013-03-29 | 2013-09-04 | 成都瑞柯林工程技术有限公司 | Ash conveying and discharging system for blast furnace gas dust removal device and silo pump ash conveying and discharging device |
| CN209337668U (en) * | 2018-10-17 | 2019-09-03 | 辽宁清道夫环保工程有限公司 | Feed bin pump and pneumatic transport equipment |
-
2019
- 2019-12-30 CN CN201911391016.9A patent/CN111039023B/en active Active
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| CN111039023A (en) | 2020-04-21 |
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