CN117246774A - Dense-phase pneumatic conveying system - Google Patents
Dense-phase pneumatic conveying system Download PDFInfo
- Publication number
- CN117246774A CN117246774A CN202311168577.9A CN202311168577A CN117246774A CN 117246774 A CN117246774 A CN 117246774A CN 202311168577 A CN202311168577 A CN 202311168577A CN 117246774 A CN117246774 A CN 117246774A
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- China
- Prior art keywords
- conveying
- dense
- phase pneumatic
- conveying pipeline
- pneumatic conveying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000843 powder Substances 0.000 claims abstract description 50
- 238000001914 filtration Methods 0.000 claims description 13
- 238000010926 purge Methods 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 15
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000007664 blowing Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 230000003584 silencer Effects 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 235000012054 meals Nutrition 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000030279 gene silencing Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- B65G53/521—Adaptations of pipes or tubes means for preventing the accumulation or for removal of deposits
Abstract
The invention discloses a dense-phase pneumatic conveying system which comprises a dense-phase pneumatic conveying device, a conveying pipeline and a vibrating device, wherein the dense-phase pneumatic conveying device is connected with a first end of the conveying pipeline and is used for providing air quantity for the conveying pipeline, the air quantity is blown from the first end of the conveying pipeline to a second end of the conveying pipeline, and the vibrating device is connected with the conveying pipeline and is used for vibrating the conveying pipeline. When the device is used, the dense-phase pneumatic conveying device provides air quantity for the first end of the conveying pipeline so as to sweep the conveying pipeline, and meanwhile, the vibrating device vibrates the conveying pipeline, so that powder adhered to the conveying pipeline is shaken off and blown away by the air quantity, and cleaning work of the conveying pipeline is completed. By arranging the vibration device, powder attached to the conveying pipeline is easier to fall off, so that the purging difficulty of the dense-phase pneumatic conveying device is reduced, and the purging air quantity provided by the dense-phase pneumatic conveying device can be reduced, namely the air quantity required by the purging process of the conveying pipeline is reduced.
Description
Technical Field
The invention relates to the technical field of dense-phase pneumatic conveying, in particular to a dense-phase pneumatic conveying system.
Background
The dense-phase pneumatic conveying system has wide application in new energy, chemical industry, food industry and medicine industry, the lower conveying air speed in the conveying process can greatly reduce the crushing of materials and the abrasion to a conveying pipeline in the conveying process, and the lower conveying air quantity can ensure that less energy consumption is consumed in the conveying process. However, when the dense-phase pneumatic conveying system is finished in conveying, in order to clean up the residual powder in the conveying pipeline, a short-time large-air-volume purging process is needed, in the purging process, the air speed in the conveying pipeline reaches about 30m/s, the process is short, the abrasion of the conveying pipeline and the damage to materials are obvious along with the increase of conveying times, and the air volume required for purging in a short time is several times of the normal air volume.
Therefore, how to reduce the amount of air needed for the purge process is a technical problem that the skilled person needs to solve at present.
Disclosure of Invention
Accordingly, the present invention is directed to a dense phase pneumatic conveying system for reducing the amount of air required during the purging process;
in order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a dense phase pneumatic conveying system, includes dense phase pneumatic conveying device, pipeline and vibrating device, and dense phase pneumatic conveying device is connected with the first end of pipeline for the pipeline provides the tolerance, the tolerance blows to the second end of pipeline from the first end of pipeline, and vibrating device is connected with pipeline, is used for vibrating pipeline.
Optionally, in the dense-phase pneumatic conveying system, the number of the vibration devices is one or more.
Optionally, in the dense-phase pneumatic conveying system, the vibration device is an electric vibrator or a pneumatic vibrator.
Optionally, in the dense-phase pneumatic conveying system, the conveying pipeline comprises an inner conveying channel and an outer conveying channel, the inner conveying channel is arranged in the outer conveying channel, and the vibrating device is connected with the outer conveying channel and used for vibrating the inner conveying channel, and a cavity is formed between the inner conveying channel and the outer conveying channel.
Optionally, in the dense-phase pneumatic conveying system, the dense-phase pneumatic conveying system further includes an automatic air intake valve, an automatic air exhaust valve and a pressure sensor, the automatic air intake valve is used for inflating the interior of the cavity, the automatic air exhaust valve is used for exhausting the gas in the cavity, and the pressure sensor is arranged in the cavity and is used for detecting the pressure in the cavity.
Optionally, in the dense-phase pneumatic conveying system, the dense-phase pneumatic conveying system further comprises a filtering silencer, and the filtering silencer is connected with the automatic exhaust valve and used for silencing the automatic exhaust valve.
Optionally, in the dense-phase pneumatic conveying system, the inner conveying channel is a wear-resistant soft pipe.
Optionally, in the dense-phase pneumatic conveying system, the dense-phase pneumatic conveying system further comprises a mounting support, a fixing ring and a connecting rod, the vibrating device is connected with the mounting support, the connecting rod is used for connecting the fixing ring and the mounting support, and the fixing ring is sleeved on the inner conveying channel.
Optionally, in the dense-phase pneumatic conveying system, the dense-phase pneumatic conveying system further comprises a powder receiving device, and the powder receiving device is connected with the second end of the conveying pipeline and is used for receiving powder.
Optionally, in the dense-phase pneumatic conveying system, the dense-phase pneumatic conveying system further comprises a powder filtering device, and the powder filtering device is connected with the powder receiving device and is used for separating powder and gas.
When the dense-phase pneumatic conveying system provided by the invention is used, the dense-phase pneumatic conveying device supplies air quantity to the first end of the conveying pipeline so as to sweep the conveying pipeline, and the vibrating device vibrates the conveying pipeline, so that powder adhered to the conveying pipeline is shaken off and blown away by the air quantity, and the cleaning work of the conveying pipeline is completed. By arranging the vibration device, powder attached to the conveying pipeline is easier to fall off, so that the purging difficulty of the dense-phase pneumatic conveying device is reduced, and the purging air quantity provided by the dense-phase pneumatic conveying device can be reduced, namely the air quantity required by the purging process of the conveying pipeline is reduced.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an overall block diagram of one embodiment of a dense phase pneumatic conveying system disclosed in an embodiment of the present invention;
FIG. 2 is an overall block diagram of another embodiment of a dense phase pneumatic conveying system according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a dense phase pneumatic conveying system according to an embodiment of the present invention.
Wherein:
dense-phase pneumatic conveying apparatus 100, conveying pipeline 200, inner conveying pipeline 201, outer conveying pipeline 202, vibrating apparatus 300, powder filtering apparatus 400, powder receiving apparatus 500, automatic air inlet valve 600, automatic air outlet valve 601, pressure sensor 602, mounting support 700, fixing ring 701, and connecting rod 702.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without novel efforts, are intended to fall within the scope of this invention.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top surface", "bottom surface", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the indicated positions or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limitations of the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 to 3, the dense phase pneumatic conveying system disclosed by the invention comprises a dense phase pneumatic conveying device 100, a conveying pipeline 200 and a vibrating device 300, wherein the dense phase pneumatic conveying device 100 is connected with a first end of the conveying pipeline 200 and is used for providing air quantity for the conveying pipeline 200, the air quantity is blown from the first end of the conveying pipeline 200 to a second end of the conveying pipeline 200, and the vibrating device 300 is connected with the conveying pipeline 200 and is used for vibrating the conveying pipeline 200. Specifically, according to the different dense phase conveying modes and different air quantity control modes, operators can select different dense phase pneumatic conveying devices 100 according to the needs. In use, the dense-phase pneumatic conveying apparatus 100 provides air to the first end of the conveying pipeline 200 to purge the conveying pipeline 200, and the vibration apparatus 300 vibrates the conveying pipeline 200, so that powder adhered to the conveying pipeline 200 is shaken off and blown away by the air, and cleaning of the conveying pipeline 200 is completed. In the prior art, the dense-phase pneumatic conveying device 100 is adopted to provide large air flow and high air speed for the conveying pipeline 200, so that the conveying pipeline 200 is greatly abraded and damaged, therefore, the powder attached to the conveying pipeline 200 is easier to fall off by arranging the vibration device 300, the damage to the powder is avoided, an operator can properly reduce the air flow speed of the blowing, the blowing difficulty of the dense-phase pneumatic conveying device 100 is reduced, the abrasion to the conveying pipeline 200 is avoided, and the blowing air flow provided by the dense-phase pneumatic conveying device 100 can be reduced, namely the air flow required by the blowing process of the conveying pipeline 200 is reduced.
In order to optimize the above technical solution, the number of the vibration devices 300 is one or more. Specifically, according to the different lengths of the conveying pipes 200 and the different types of the powder to be purged, an operator may be connected with different numbers of the vibrating devices 300 on the conveying pipes 200, so as to ensure the efficiency of the purging process, the vibrating devices 300 are uniformly distributed on the conveying pipes 200, so that the powder on the conveying pipes 200 can be shaken off under the vibration of the vibrating devices 300. In the prior art, the dense-phase pneumatic conveying device 100 is used for blowing the powder in a mode of providing high-speed air quantity, namely, the powder adhered on the conveying pipeline 200 is stripped through the air flowing at high speed, and the vibration device 300 is used for vibrating the conveying pipeline 200 to overcome the adhesive force of the powder through the vibration inertia force, so that the difficulty of blowing the powder is reduced, and the air quantity required in the blowing process of the conveying pipeline 200 is reduced.
Further, the vibration device 300 is an electric vibrator or a pneumatic vibrator. An electric vibrator or a pneumatic vibrator is used to shake off the powder attached to the transfer pipe 200.
In order to optimize the above technical solution, the conveying pipe 200 includes an inner conveying path 201 and an outer conveying path 202, the inner conveying path 201 is disposed inside the outer conveying path 202, and the vibration device 300 is connected to the outer conveying path 202 for vibrating the inner conveying path 201, and a cavity is formed between the inner conveying path 201 and the outer conveying path 202. When the device is used, powder adheres to the inner conveying channel 201, the vibrating device 300 is fixed on the outer conveying channel 202, the dense-phase pneumatic conveying device 100 sweeps the inner conveying channel 201, meanwhile, the vibrating device 300 acts on the inner conveying channel 201 to vibrate the inner conveying channel 201, namely, when the dense-phase pneumatic conveying device 100 sweeps the inner conveying channel 201, the vibrating device 300 vibrates the inner conveying channel 201 to shake off the powder adhered to the inner wall of the inner conveying channel 201, and the shaken-off powder is blown out of the inner conveying channel 201 along with the air quantity, so that the cleaning work of the inner conveying channel 201 is completed.
In order to optimize the technical scheme, the dense-phase pneumatic conveying system further comprises an automatic air inlet valve 600, an automatic air outlet valve 601 and a pressure sensor 602, wherein the automatic air inlet valve 600 is used for charging air into the cavity, the automatic air outlet valve 601 is used for discharging air in the cavity, and the pressure sensor 602 is arranged in the cavity and is used for detecting pressure in the cavity. When the cleaning operation is completed, the vibration device 300 is still in the working state, at this time, the operator opens the automatic air inlet valve 600, charges air into the cavity, the pressure sensor 602 monitors the pressure inside the cavity in real time, when the pressure inside the cavity reaches a preset value, the automatic air inlet valve 600 is closed, at this time, the pressure in the cavity is greater than the pressure of the inner conveying channel 201, a certain pressure difference is formed, the pressure difference enables the inner conveying channel 201 to be compressed, the cross-sectional area of the inner conveying channel is reduced, meanwhile, the air speed in the inner conveying channel is increased, the increased air speed can further purge the powder remained in the inner conveying channel 201, after the preset time is purged, the operator opens the automatic air outlet valve 601, discharges the air in the cavity, and the inner conveying channel 201 is restored.
Further, a pressure sensor can be disposed inside the inner conveying path 201, so that an operator can determine the pressure difference between the inner conveying path 201 and the cavity, and adjust the pressure difference, thereby better ensuring the purging effect.
In order to optimize the technical scheme, the dense-phase pneumatic conveying system further comprises a filtering silencer, wherein the filtering silencer is connected with the automatic exhaust valve 601 and used for silencing the automatic exhaust valve 601. Specifically, a certain noise is generated when the automatic exhaust valve 601 is exhausted, so that the exhaust process of the automatic exhaust valve 601 can be silenced by arranging the filtering silencer, and the production environment is quiet and orderly.
To optimize the solution described above, the outer channel 202 is made of stainless steel. Specifically, since the outer conveying path 202 needs to be fixedly connected with the vibration device 300, and the outer conveying path 202 is disposed outside the inner conveying path 201, and the inner conveying path 201 needs to be protected, the material of the outer conveying path 202 needs to have a certain hardness, and through practical use and data simulation, the present invention prefers stainless steel materials for the outer conveying path 202, and other materials capable of achieving the above objects are also within the scope of protection of the present invention, and will not be described herein.
Further, the dense-phase pneumatic conveying system further comprises a mounting support 700, a fixing ring 701 and a connecting rod 702, the vibrating device 300 is connected with the mounting support 700, the connecting rod 702 is used for connecting the fixing ring 701 and the mounting support 700, and the fixing ring 701 is sleeved on the inner conveying channel 201. When the vibration device 300 is in use, the vibration device 300 is fixed on the outer conveying channel 202 through the mounting support 700, the fixing ring 701 is sleeved on the inner conveying channel 201, when the vibration device 300 is in a working state, vibration force of the vibration device is transmitted to the fixing ring 701 through the connecting rod 702, and the fixing ring 701 drives the inner conveying channel 201 to vibrate. The arrangement realizes effective vibration on the inner conveying channel 201 so as to shake off all powder attached to the inner wall of the inner conveying channel, thereby improving the purging effect of the dense-phase pneumatic conveying system.
To optimize the solution described above, the inner conveyor channel 201 is a wear-resistant flexible tube. Specifically, the inner conveying passage 201 is designed to be a wear-resistant pipe, so that abrasion of the blowing of the air quantity to the inner conveying passage 201 can be further reduced, and the inner conveying passage 201 is a soft pipe, so that the vibrating device 300 can be beneficial to applying vibrating force to the inner conveying passage 201, and the inner conveying passage 201 can generate larger amplitude under the condition of the same vibrating force, so that powder shaking is facilitated. Therefore, the inner conveying passage 201 is a wear-resistant soft pipe, so that the purging efficiency of the dense-phase pneumatic conveying system can be improved. In order to optimize the technical solution, the dense phase pneumatic conveying system further comprises a powder receiving device 500, and the powder receiving device 500 is connected with the second end of the conveying pipeline 200 and is used for receiving powder. Specifically, the purged meal eventually reaches the second end of the delivery conduit 200 with the amount of gas and is delivered to the meal receiving apparatus 500, where the meal is recovered by the meal receiving apparatus 500. The arrangement can avoid powder waste and protect the production environment.
In order to optimize the technical scheme, the dense-phase pneumatic conveying system further comprises a powder filtering device 400, and the powder filtering device 400 is connected with the powder receiving device 500 and is used for filtering powder. Specifically, since the powder output from the second end of the conveying pipe 200 accompanies the gas amount, it is necessary to separate the gas amount and the powder after the gas amount and the powder enter the powder receiving apparatus 500. The powder filtering device 400 is connected with the powder receiving device 500, and is used for separating gas and powder, and discharging the filtered gas.
The invention has the advantages that:
(1) The air quantity required in the purging process of the conveying pipeline can be reduced;
(2) The purging efficiency of the dense-phase pneumatic conveying system can be improved.
The dense-phase pneumatic conveying system provided by the invention can be used in the technical field of dense-phase pneumatic conveying or other fields. Other fields are any field other than the technical field of dense phase pneumatic conveying. The foregoing is merely exemplary, and is not intended to limit the application of the dense phase pneumatic conveying system provided by the present invention.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (10)
1. The dense-phase pneumatic conveying system is characterized by comprising a dense-phase pneumatic conveying device, a conveying pipeline and a vibrating device, wherein the dense-phase pneumatic conveying device is connected with the first end of the conveying pipeline and is used for providing air quantity for the conveying pipeline, the air quantity is blown from the first end of the conveying pipeline to the second end of the conveying pipeline, and the vibrating device is connected with the conveying pipeline and is used for vibrating the conveying pipeline.
2. The dense phase pneumatic conveying system of claim 1 wherein the number of vibration means is one or more.
3. The dense phase pneumatic conveying system of claim 1 wherein the vibration device is an electric vibrator or a pneumatic vibrator.
4. A dense phase pneumatic conveying system according to claim 3, wherein said conveying conduit comprises an inner conveying passage and an outer conveying passage, said inner conveying passage being disposed within said outer conveying passage, said vibrating means being connected to said outer conveying passage for vibrating said inner conveying passage, a cavity being formed between said inner conveying passage and said outer conveying passage.
5. The dense phase pneumatic conveying system of claim 4 further comprising an automatic intake valve for inflating the interior of the cavity, an automatic exhaust valve for exhausting gas from the interior of the cavity, and a pressure sensor disposed in the interior of the cavity for detecting the pressure within the cavity.
6. The dense phase pneumatic conveying system of claim 5 further comprising a filter muffler coupled to the automatic exhaust valve for muffling the automatic exhaust valve.
7. The dense phase pneumatic conveying system of claim 6 wherein the inner conveying passage is a wear resistant flexible tube.
8. The dense phase pneumatic conveying system of claim 7 further comprising a mounting bracket, a retaining ring and a connecting rod, wherein the vibrating device is connected to the mounting bracket, the connecting rod is used to connect the retaining ring and the mounting bracket, and the retaining ring is sleeved on the inner conveying passage.
9. The dense phase pneumatic conveying system of claim 1 further comprising a powder receiving means coupled to the second end of the conveying conduit for receiving powder.
10. The dense phase pneumatic conveying system of claim 9 further comprising a powder filtration device coupled to the powder receiving device for separating powder from gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311168577.9A CN117246774A (en) | 2023-09-11 | 2023-09-11 | Dense-phase pneumatic conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311168577.9A CN117246774A (en) | 2023-09-11 | 2023-09-11 | Dense-phase pneumatic conveying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117246774A true CN117246774A (en) | 2023-12-19 |
Family
ID=89128681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311168577.9A Pending CN117246774A (en) | 2023-09-11 | 2023-09-11 | Dense-phase pneumatic conveying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117246774A (en) |
-
2023
- 2023-09-11 CN CN202311168577.9A patent/CN117246774A/en active Pending
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