CN115744317A - Positive pressure conveying device with pressure control system - Google Patents
Positive pressure conveying device with pressure control system Download PDFInfo
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- CN115744317A CN115744317A CN202211399549.3A CN202211399549A CN115744317A CN 115744317 A CN115744317 A CN 115744317A CN 202211399549 A CN202211399549 A CN 202211399549A CN 115744317 A CN115744317 A CN 115744317A
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Abstract
The invention discloses a positive pressure conveying device with a pressure control system, which comprises a sending tank, a receiving tank, a conveying pipe, a pressure supply device, a pressure supply pipeline system and the pressure control system, wherein the pressure supply pipeline system comprises a first pressure supply pipe and a second pressure supply pipe; the pressure control system comprises a conveying pressure detection system arranged on the conveying pipe, a sending pressure detection device arranged in the sending tank and a control device, wherein the control device is respectively connected with the conveying pressure detection device, the sending pressure detection device, the first valve and the second valve. The pressure in the conveying pipeline and the sending tank can be detected in real time, the pressure in the whole conveying device can be automatically adjusted according to the real-time pressure, the pressure inside the conveying system can be effectively controlled, and the pipeline blockage caused by the damage of powder particles or the undersize pressure is avoided.
Description
Technical Field
The invention relates to the technical field of chemical machinery, in particular to a positive pressure conveying device with a pressure control system.
Background
Powder materials are generally conveyed by adopting a positive pressure conveying device, compressed air is introduced into a conveying pipeline by utilizing the front end of a conveying system, namely a fan at the starting point of the system, the air flows in the pipeline by utilizing the pressure difference between the starting point and the finishing point of the pipeline and drives the materials to move, in the positive pressure conveying system, the materials are conveyed into the conveying system by a feeding device, and the materials are separated from the air at the conveying finishing point. However, when the powder material is conveyed by using the positive pressure conveying device, the pressure in the pipeline is generally difficult to control, the flow velocity of the material with overlarge pressure in the pipeline is generally faster, and the surface of material particles is abraded due to the friction action between particles or between particles and the wall of the conveying pipe during the conveying process of part of the material with lower surface strength, so that more micro powder is generated; when the pressure is too low, the pipe is easily clogged.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a positive pressure conveying device with a pressure control system, which specifically comprises the following contents:
a positive pressure conveying device with a pressure control system comprises a sending tank, a receiving tank, a conveying pipe, a pressure supply device and a pressure supply pipeline system, wherein the conveying pipe comprises a first end and a second end, the first end of the conveying pipe is connected with the sending tank, the second end of the conveying pipe is connected with the receiving tank, the positive pressure conveying device also comprises the pressure control system, the pressure supply pipeline system comprises a first pressure supply pipe and a second pressure supply pipe, the first pressure supply pipe is respectively connected with the pressure supply device and the sending tank, a first valve is arranged on the first pressure supply pipe, the second pressure supply pipe is respectively connected with the pressure supply device and the first end of the conveying pipe, and a second valve is arranged on the second pressure supply pipe; the pressure control system comprises a conveying pressure detection system arranged on the conveying pipe, a sending pressure detection device arranged in the sending tank and a control device, wherein the control device is respectively connected with the conveying pressure detection device, the sending pressure detection device, the first valve and the second valve.
Specifically, supply to press piping system still includes the tonifying qi pipeline, still be provided with one or more tonifying qi mouth on the conveyer pipe, the tonifying qi mouth passes through the tonifying qi pipeline and is connected with pressure supply device, is provided with the tonifying qi valve on the tonifying qi pipeline, and the tonifying qi valve is connected with controlling means.
Specifically, the control device comprises a signal receiving module, a control module and a computing module which is respectively connected with the signal receiving module and the control module, the signal receiving module is respectively connected with the conveying pressure detection system and the sending pressure detection device, and the control module is respectively connected with the first valve, the second valve and the air compensation valve.
Specifically, the conveying pressure detection system comprises one or more pressure transmitters, and the sending pressure detection device is a pressure transmitter.
Specifically, the conveying pressure detection system comprises a plurality of pressure transmitters, and the plurality of pressure transmitters are arranged on the conveying pipe at intervals.
Specifically, the middle lower part of the sending tank is provided with an air inlet, and the air inlet is connected with a pressure supply device through a first pressure supply pipe.
Specifically, the upper part of the receiving tank is provided with a gas outlet, the inner side of the gas outlet is provided with a filtering device, the outer side of the gas outlet is connected with a gas outlet pipe, and the gas outlet pipe is provided with a gas outlet valve.
Specifically, the bottom of receiving the jar is provided with the discharge gate, and discharge gate department is provided with the bleeder valve.
Specifically, the upper portion of sending the jar is provided with the gas vent, and the external blast pipe of gas vent is provided with discharge valve on the blast pipe.
Specifically, the upper end of sending the jar is provided with the feed inlet, and feed inlet department is provided with the feed valve, and the feed inlet upper end is provided with the feeding fan.
The invention has the beneficial effects that:
(1) The device is provided with the pressure control system, so that the pressure in the conveying pipeline and the sending tank can be detected in real time, the pressure in the whole conveying device can be automatically adjusted according to the real-time pressure, the pressure in the conveying system can be effectively controlled, and the damage of powder particles caused by overlarge pressure or the pipeline blockage caused by undersize pressure can be avoided;
(2) The conveying pipe is provided with a plurality of pressure transmitters and air supplementing points at intervals, so that the air pressure of different parts of the pipeline can be detected, air can be supplemented in a targeted manner, and local blockage caused by too low local air pressure due to air leakage of the pipeline can be prevented;
(3) The middle lower part of the sending tank is provided with an air inlet and is communicated with the pressure supply device, so that on one hand, the pressure in the sending tank can be kept not lower than that of the conveying pipeline, and the discharging is convenient; on the other hand can also blow up the powder in sending the jar, makes the material fluidization, carries more easily, prevents to block up the discharge gate simultaneously.
Drawings
FIG. 1 is a schematic view of the disclosed device of the present valve;
fig. 2 is a schematic connection diagram of a control device of the device disclosed by the invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiments shown below do not limit the inventive content described in the claims. The entire contents of the configurations shown in the following embodiments are not limited to those required as solutions of the inventions described in the claims.
Referring to the attached drawing 1, a positive pressure conveying device with a pressure control system comprises a sending tank 1, a receiving tank 2, a conveying pipe 5, a pressure supply device 7 and a pressure supply pipeline system, wherein the conveying pipe 5 comprises a first end and a second end, the first end of the conveying pipe 5 is connected with the sending tank 1, the second end of the conveying pipe 5 is connected with the receiving tank 2, the positive pressure conveying device further comprises the pressure control system, the pressure supply pipeline system comprises a first pressure supply pipe and a second pressure supply pipe, the first pressure supply pipe is respectively connected with the pressure supply device 7 and the sending tank 1, the first pressure supply pipe is provided with a first valve 3, the second pressure supply pipe is respectively connected with the pressure supply device 7 and the first end of the conveying pipe 5, and the second pressure supply pipe is provided with a second valve 4; the pressure control system comprises a conveying pressure detection system arranged on the conveying pipe 5, a sending pressure detection device arranged in the sending tank 1 and a control device, wherein the control device is respectively connected with the conveying pressure detection device, the sending pressure detection device, the first valve 3 and the second valve 4. This device has set up pressure control system, can real-time detection conveyer pipe 5 say and send the pressure in jar 1 to according to the size of the pressure in the whole conveyor of real-time pressure automatically regulated, can the inside pressure of effective control conveyer system, avoid because the powder granule that the pressure is too big causes is impaired or because of the pipeline that the undersize caused blocks up.
In an embodiment of the present invention, the pressure supply pipeline system further includes an air supply pipeline 6, the delivery pipe 5 is further provided with one or more air supply ports, the air supply ports are connected to the pressure supply device 7 through the air supply pipeline 6, the air supply pipeline 6 is provided with an air supply valve, and the air supply valve is connected to the control device.
Referring to fig. 2, in one embodiment of the present invention, the control device includes a signal receiving module, a control module, and a calculating module respectively connected to the signal receiving module and the control module, the signal receiving module is respectively connected to the delivery pressure detecting system and the sending pressure detecting device, and the control module is respectively connected to the first valve 3, the second valve 4, and the gulp valve.
In one embodiment of the invention, the delivery pressure detection system comprises one or more pressure transducers 7, and the transmitting pressure detection means is a pressure transducer 7. A plurality of pressure transmitters 7 and air supplementing points are arranged on the conveying pipe 5 at intervals, so that air pressure of different parts of the pipeline can be detected, air can be supplemented in a targeted manner, and local blockage caused by too low local air pressure due to air leakage of the pipeline can be prevented.
In one embodiment of the invention, the delivery pressure detection system comprises a plurality of pressure transmitters 7, and the plurality of pressure transmitters 7 are arranged on the delivery pipe 5 at intervals.
In one embodiment of the invention, the middle and lower part of the canister 1 is provided with an air inlet which is connected with a pressure supply device 7 through a first pressure supply pipe. The middle lower part of the sending tank 1 is provided with an air inlet and is communicated with a pressure supply device 7, so that on one hand, the pressure in the sending tank 1 can be kept not lower than that of the conveying pipe 5, and the discharging is convenient; on the other hand, the powder in the sending tank 1 can be blown up, so that the material is fluidized and is easier to convey, and the discharge hole is prevented from being blocked.
In one embodiment of the invention, the upper part of the receiving tank 2 is provided with an air outlet, the inner side of the air outlet is provided with a filtering device 8, the outer side of the air outlet is connected with an air outlet pipe, the air outlet pipe is provided with an air outlet valve 9, and the air outlet valve 9 is preferably a pulse air valve.
In one embodiment of the invention, the bottom end of the receiving tank 2 is provided with a discharge port, and a discharge valve 10 is arranged at the discharge port.
In one embodiment of the present invention, the upper portion of the sending tank 1 is provided with an exhaust port, the exhaust port is externally connected with an exhaust pipe, and the exhaust pipe is provided with an exhaust valve 11.
In one embodiment of the present invention, the upper end of the sending tank 1 is provided with a feeding port, the feeding port is provided with a feeding valve 12, and the upper end of the feeding port is provided with a feeding fan 13.
The use method of the device disclosed by the invention comprises the following steps:
(1) Feeding: firstly, materials to be conveyed are added through a feeding hole of the sending tank 1, the feeding fan 13 is turned on to carry out quantitative feeding, and an emptying valve of the sending tank 1 is opened during feeding. After the feeding is completed, the feeding fan 13 and the feeding valve 12 are closed, the feeding valve 12 is preferably a pneumatic butterfly valve, and then the exhaust valve 11 is closed.
(2) Conveying: and controlling the second valve 4, adjusting the pressure in the conveying pipe 5 to be 0.2-0.3MPa, opening the discharge valve 10 of the sending tank 1, opening the first valve 3, starting to convey the materials, allowing the materials to enter the receiving tank 2 through the conveying pipe 5, discharging gas through the gas outlet pipe of the receiving tank 2, and allowing the powder materials to enter the receiving tank 2. When the pressure of the sending tank 1 is lower than the set value, the sending completion of the materials can be confirmed, the sending is continued for 10-30 seconds, and the conveying pipeline 5 is cleaned. The first valve 3 and the second valve 4 are closed.
(3) Blanking: after the conveying is finished, the discharge valve 10 of the receiving tank 2 is opened, the discharging is started, the filter element of the filter device 8 is sprayed from the outside to the inside of the pulse air valve on the air outlet pipe of the receiving tank 2, and the filter pipe is cleaned to prevent blockage. And after the blanking is finished, starting the next feeding, conveying and discharging period.
(4) And (3) pressure control: the pressure transmitters 7 on the sending tank 1 and the conveying pipe 5 monitor the pressure in the device in real time, and convey pressure information to a signal receiving module of the control device, the signal receiving module transmits signals to a calculating module, when the detected pressure is smaller than or larger than the set pressure, the calculating module transmits the calculated result to a control module, and the control module controls the corresponding valve to be closed or opened, so that the air pressure at the corresponding position is adjusted to return to the set range.
Unless expressly stated or limited otherwise, the terms "disposed" and "connected" are to be construed broadly and encompass, for example, a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
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.
Claims (10)
1. A positive pressure conveying device with a pressure control system comprises a sending tank, a receiving tank, a conveying pipe, a pressure supply device and a pressure supply pipeline system, wherein the conveying pipe comprises a first end and a second end, the first end of the conveying pipe is connected with the sending tank, and the second end of the conveying pipe is connected with the receiving tank; the pressure control system comprises a conveying pressure detection system arranged on the conveying pipe, a sending pressure detection device arranged in the sending tank and a control device, wherein the control device is respectively connected with the conveying pressure detection device, the sending pressure detection device, the first valve and the second valve.
2. The positive pressure conveying device with the pressure control system according to claim 1, wherein the pressure supply pipeline system further comprises an air supply pipeline, the conveying pipeline is further provided with one or more air supply ports, the air supply ports are connected with the pressure supply device through the air supply pipeline, the air supply pipeline is provided with an air supply valve, and the air supply valve is connected with the control device.
3. The positive pressure conveying device with the pressure control system according to claim 2, wherein the control device comprises a signal receiving module, a control module and a calculating module respectively connected with the signal receiving module and the control module, the signal receiving module is respectively connected with the conveying pressure detection system and the sending pressure detection device, and the control module is respectively connected with the first valve, the second valve and the air compensating valve.
4. The positive pressure delivery apparatus with pressure control system according to any of claims 1-3, wherein the delivery pressure detection system comprises one or more pressure transducers, and the sending pressure detection apparatus is a pressure transducer.
5. The positive pressure conveying device with the pressure control system according to claim 4, wherein the conveying pressure detection system comprises a plurality of pressure transmitters, and the plurality of pressure transmitters are arranged on the conveying pipe at intervals.
6. The positive pressure delivery device with the pressure control system according to any one of claims 1 to 3, wherein an air inlet is provided at a middle-lower portion of the sending tank, and the air inlet is connected with the pressure supply device through a first pressure supply pipe.
7. The positive pressure conveying device with the pressure control system according to any one of claims 1 to 3, wherein an air outlet is arranged at the upper part of the receiving tank, a filtering device is arranged at the inner side of the air outlet, an air outlet pipe is connected to the outer side of the air outlet, and an air outlet valve is arranged on the air outlet pipe.
8. The positive pressure conveying device with the pressure control system according to claim 7, wherein a discharge port is arranged at the bottom end of the receiving tank, and a discharge valve is arranged at the discharge port.
9. The positive pressure delivery device with the pressure control system according to any one of claims 1 to 3, wherein the upper part of the sending tank is provided with an exhaust port, the exhaust port is externally connected with an exhaust pipe, and the exhaust pipe is provided with an exhaust valve.
10. The positive pressure conveying device with the pressure control system according to claim 9, wherein a feed port is arranged at the upper end of the sending tank, a feed valve is arranged at the feed port, and a feed fan is arranged at the upper end of the feed port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211399549.3A CN115744317A (en) | 2022-11-09 | 2022-11-09 | Positive pressure conveying device with pressure control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211399549.3A CN115744317A (en) | 2022-11-09 | 2022-11-09 | Positive pressure conveying device with pressure control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115744317A true CN115744317A (en) | 2023-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211399549.3A Pending CN115744317A (en) | 2022-11-09 | 2022-11-09 | Positive pressure conveying device with pressure control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115744317A (en) |
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2022
- 2022-11-09 CN CN202211399549.3A patent/CN115744317A/en active Pending
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