CN108253299B - Method for conveying pug through air cushion, fluid injector and pug conveying system - Google Patents
Method for conveying pug through air cushion, fluid injector and pug conveying system Download PDFInfo
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- CN108253299B CN108253299B CN201810286344.1A CN201810286344A CN108253299B CN 108253299 B CN108253299 B CN 108253299B CN 201810286344 A CN201810286344 A CN 201810286344A CN 108253299 B CN108253299 B CN 108253299B
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- pug
- air cushion
- tube
- pressure
- pipe
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- 238000000034 method Methods 0.000 title claims abstract description 82
- 239000012530 fluid Substances 0.000 title claims abstract description 64
- 238000002347 injection Methods 0.000 claims abstract description 22
- 239000007924 injection Substances 0.000 claims abstract description 22
- 239000000835 fiber Substances 0.000 claims description 34
- 239000004744 fabric Substances 0.000 claims description 30
- 239000010802 sludge Substances 0.000 claims description 22
- 238000005086 pumping Methods 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 18
- 238000002955 isolation Methods 0.000 claims description 10
- 241001408630 Chloroclystis Species 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 230000001050 lubricating effect Effects 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 24
- 239000006072 paste Substances 0.000 description 19
- 239000002002 slurry Substances 0.000 description 13
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 210000004913 chyme Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 230000003031 feeding effect Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000010806 kitchen waste Substances 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- -1 mine filling Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000000606 toothpaste Substances 0.000 description 1
- 229940034610 toothpaste Drugs 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/14—Conveying liquids or viscous products by pumping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/088—Pipe-line systems for liquids or viscous products for solids or suspensions of solids in liquids, e.g. slurries
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/20—Arrangements or systems of devices for influencing or altering dynamic characteristics of the systems, e.g. for damping pulsations caused by opening or closing of valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Air Transport Of Granular Materials (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a method for conveying pug by an air cushion, a fluid injector and a pug conveying system, which comprise the following steps: the invention discloses a mud conveying pump 5, a high-pressure air source device 6, a fluid injector 7, a lubricating mud conveying pipe 8, a one-way valve 9 and a mud check valve 10, wherein the mud conveying pump 5 is sequentially communicated with the mud check valve 10, the fluid injector 7 and the lubricating mud conveying pipe 8, the high-pressure air source device 6 is communicated with the one-way valve 9, and the one-way valve 9 is communicated with a fluid medium injection port 711 of the fluid injector 7.
Description
Technical Field
The present invention relates generally to the field of plumbing, and more particularly to a method, fluid injector, and mud delivery system for air cushion delivery of mud such as paste and paste-like mud.
Background
The pipeline conveying is one of the best conveying modes of paste, paste-like mud and other mud materials, is commonly used for conveying various mud materials such as coal mud, sludge, carbide mud, papermaking waste mud and the like, but has the defects of high conveying resistance, high conveying cost and the like due to the shearing force of a side wall and the friction force of solid components in the mud materials and a conveying pipe wall, particularly when the mud materials such as papermaking mud and the like mainly made of cellulose are conveyed by a pipeline, the fiber materials directly rub the conveying pipe wall, so that the conveying resistance is very high, the pipeline is difficult to convey, and related operators have to adopt a belt conveyor for conveying, so that a large amount of volatile gas is emitted into the atmosphere, and a large amount of dust is generated, thereby causing serious air pollution.
In order to solve the above problems, it is necessary to develop a new method of transporting a pug by an air cushion, a fluid injector, and a pug transporting system.
Disclosure of Invention
The present invention has been made in view of at least one of the above problems, and a first object of the present invention is to provide a method of air cushion transporting a pug, in particular, a method of air cushion transporting a pug, comprising:
an air cushion-free mud material conveying process, which is an air cushion film-free mud material conveying process,
a gas compression step of pressurizing a gas to generate a compressed gas,
an air cushion injection process for injecting compressed gas into the side wall of the flowing mud material and forming an air cushion film,
an air cushion pug conveying process, which is a pug conveying process with an air cushion film,
the air cushion-free mud conveying process and the air compressing process are arranged in parallel before the air cushion injection process, and the air cushion mud conveying process is arranged after the air cushion injection process.
In another aspect of the first object of the present invention, the air cushion-free slurry transporting process further includes a slurry pumping process and a slurry check process, wherein the slurry pumping process is a process of pumping the slurry, the slurry check process is a process of preventing the slurry from flowing backwards, and the slurry check process is before the slurry pumping process.
In another aspect of the first object of the present invention, the slurry pumping process is a pulse-free slurry pumping.
A second object of the present invention is to provide a fluid injector, in particular a fluid injector, comprising:
a housing having a fluid medium injection port;
the isolating pipe is provided with a fluid channel on the pipe wall, and is used for blocking part or all of solid components in the pug from entering the outside of the isolating pipe through the pipe wall and enabling gas or liquid to enter the isolating pipe through the fluid channel, and the isolating pipe is positioned in the shell.
In another aspect of the second object of the present invention, the isolation tube further comprises a pressure-bearing tube and a fiber cloth sleeve, wherein the fiber cloth sleeve is positioned in the pressure-bearing tube and connected with the pressure-bearing tube, and a fluid channel is arranged on the wall of the pressure-bearing tube.
In another aspect of the second object of the present invention, the inside of the fiber cloth cover has protruding fiber bristles.
A third object of the present invention is to provide a pug conveying system, in particular, a pug conveying system comprising:
a paste transfer pump for pumping a paste;
a high pressure gas source device for generating compressed gas;
a fluid injector for injecting compressed gas at the side wall of the flowing sludge and forming an air cushion film,
an air cushion pug conveying pipe for conveying pugs with air cushion films,
the fluid injector is respectively communicated with the paste conveying pump and the air cushion pug conveying pipe, and the high-pressure air source device is communicated with the fluid medium injection opening on the fluid injector.
In another aspect of the third object of the present invention, the paste transfer pump is a pulsation-free paste transfer pump.
In another aspect of the third object of the present invention, the pug delivery system further comprises a one-way valve in communication with the high pressure gas source device and the fluid injector, respectively.
In another aspect of the third object of the present invention, the sludge delivery system further comprises a sludge check valve in communication with the sludge delivery pump and the fluid injector, respectively, for preventing a reverse flow of the sludge.
Preferably, the pulse-free mud material conveying refers to pipeline conveying of the pressure and/or flow of the output mud material.
Preferably, the non-pulsation paste transfer pump refers to a transfer pump for pumping the paste, wherein the pressure and/or flow of the output paste are non-pulsation.
Preferably, the pug comprises coal mud, sludge, carbide mud, petroleum oil mud, papermaking waste mud, printing and dyeing mud, deinked mud, gasification slag, converter dust mud, red mud, kitchen waste, animal manure, mine filling, concrete, sandy coal mud, chemical pugs, chyme, toothpaste raw materials, paper pulp, titanium dioxide, kaolin, plant stucco and other paste or paste-like materials.
Preferably, the process step refers to a working process or link serving the whole process of conveying the pug.
Preferably, the communication includes direct communication and indirect communication, wherein indirect communication refers to that other devices and/or parts are communicated between the devices and/or parts.
The fluid channel on the wall of the pressure-bearing pipe comprises through holes, capillary holes and capillary channels with various diameters.
Compared with the prior art, the invention has the beneficial effects that:
the compressed gas forms an air cushion film between the pug and the conveying pipe wall, so that the friction resistance between the pug and the conveying pipe wall and the side wall shear stress of the pug are greatly reduced, the conveying resistance is effectively reduced, not only can the pug which is difficult to pump and mainly contains cellulose be pumped easily, but also the conveying cost is greatly reduced.
Drawings
Fig. 1 is a process flow diagram of a method of air cushion delivery of pugs according to a first object of the present invention.
Fig. 2 is a flow chart of the air-cushion less pug transport process according to fig. 1.
Fig. 3 is a schematic view of a fluid injector according to a preferred embodiment of the second object of the present invention.
Fig. 4 is a schematic view of the spacer tube according to fig. 3.
Fig. 5 is a schematic view of a mud conveying system according to a preferred embodiment of the third object of the present invention.
In the figure: 1 no-air cushion pug conveying process, 11 pug pumping process, 12 pug non-return process, 2 gas compression process, 3 air cushion injection process, 4 air cushion pug conveying process, 5 paste pug conveying pump, 6 high-pressure gas source device, 7 fluid injector, 71 shell, 711 fluid medium injection port, 72 isolation tube, 721 bearing tube, 722 fiber cloth cover, 73 connecting tube, 8 air cushion pug conveying tube, 9 check valve and 10 pug non-return valve.
Detailed Description
The present invention is described in the following preferred embodiments by way of the accompanying drawings, which are presented to illustrate the present invention in detail, but should not be construed as limiting the invention, and various changes, modifications, combinations, etc. can be made without departing from the spirit and the essential scope of the invention, which is intended to be included within the scope of the invention.
Example 1
Referring to fig. 1 and 2, there are shown a process flow chart of a method of air cushion transporting pugs and a flow chart of an air cushion-less pug transporting process according to a preferred embodiment of the first object of the present invention, the method of air cushion transporting pugs comprising: the method comprises an air cushion-free mud material conveying process 1, an air compression process 2, an air cushion injection process 3 and an air cushion mud material conveying process 4. The air cushion-free mud conveying process 1 and the air compressing process 2 are parallel processes, the air cushion injection process 3 is after the parallel processes, and the air cushion mud conveying process 4 is after the air cushion injection process 3. The air cushion-free sludge conveying process 1 further includes a sludge pumping process 11 and a sludge check process 12, wherein the sludge check process 12 follows the sludge pumping process 11.
The air cushion-free pug conveying process 1 is a process of conveying pugs which do not have air cushion films through a conveying pipeline.
The gas compression step 2 is a step of generating compressed gas by pressurizing gas.
In the air cushion injection step 3, the compressed air generated in the air compression step 2 is injected into the side wall of the pug, and an air film is formed at the side wall of the pug, and the air film can partially or completely isolate the pug from the inner wall of the conveying pipe, so that the resistance of the pug to flow can be greatly reduced, and the air film is called an air cushion film in the invention.
The air cushion pug conveying process 4 is a process of conveying pugs with air cushion films by pipelines.
The pug pumping step (11) is a step of pumping pugs into a conveying pipeline under pressure by a conveying pump.
In the sludge check process (12), the sludge can flow only in one direction, and is used for preventing the sludge from flowing backwards under the reaction pressure of the compressed gas.
Example two
Referring to fig. 3 and 4, there is shown a schematic view of a fluid injector and a schematic view of a spacer tube, respectively, of a preferred embodiment of the second object of the present invention, the fluid injector comprising: the device comprises a shell 71, a separation pipe 72 and a connecting pipe 73, wherein the separation pipe 72 is positioned in the shell 71, the shell 71 is connected with the connecting pipe 73, and a fluid medium injection port 711 is formed in the shell 71; the inner hole of the isolation tube 72 is a passage of mud, the isolation tube 72 further comprises a pressure-bearing tube 721 and a fiber cloth cover 722, the fiber cloth cover 722 is positioned in the pressure-bearing tube 721 and is connected with the pressure-bearing tube 721, the fiber cloth cover 722 is tightly attached to the inner wall of the pressure-bearing tube 721, the fiber cloth cover 722 is made of fiber cloth, gas or liquid can enter from one side of the fiber cloth to the other side, and solid particles are difficult to pass through due to the blocking of the fiber cloth, so that part or all solid components in the mud are blocked at the inner side of the fiber cloth cover 722; the pressure-bearing tube 721 has a plurality of fluid passages on its wall, and the compressed gas first passes through the fluid passages on the wall of the pressure-bearing tube 721 and then passes through the fiber cloth cover 722 to enter the isolation tube 72, and forms an air cushion film between the inner wall of the isolation tube 72 and the sludge, so as to isolate the sludge from the wall of the tube partially or entirely.
This embodiment can be changed to a new preferred embodiment by:
preferably, the isolation tube 72 is a single material with a plurality of ventilation micro-holes and/or micro-gaps in the wall.
Preferably, the material of the fiber cloth cover 722 is fiber cloth, one surface of the fiber cloth is provided with protruding fiber wool, and the fiber wool is positioned on the inner side of the fiber cloth cover 722.
Example III
Referring to fig. 5, there is shown a schematic diagram of a pug conveying system of a preferred embodiment of the third object of the present invention, the pug conveying system comprising: a paste mud delivery pump 5, a high-pressure air source device 6, a fluid injector 7, an air cushion mud delivery pipe 8, a one-way valve 9 and a mud check valve 10.
The paste mud delivery pump 5 is sequentially communicated with a paste check valve 10, a fluid injector 7 and an air cushion paste delivery pipe 8, the high-pressure air source device 6 is communicated with a one-way valve 9, and the one-way valve 9 is communicated with a fluid medium injection port 711 of the fluid injector 7.
The paste mud delivery pump 5 is used for pumping mud, the high-pressure air source device 6 is used for pressurizing gas to generate compressed air, the fluid injector 7 is used for injecting compressed gas into the side wall of the mud and generating an air cushion film at the side wall of the mud so as to isolate the mud from the pipe wall partially or completely, the air cushion mud delivery pipe 8 is used for delivering the mud with the air cushion film, the one-way valve 9 is used for preventing liquid or slurry permeated into the fluid injector 7 from entering the high-pressure air source device 6 or the gas pipeline, and the mud check valve 10 is used for preventing backflow of the mud in the delivery pipeline.
The mud pumped by the mud conveying pump 5 sequentially passes through the mud check valve 10 and the fluid injector 7 to enter the air cushion mud conveying pipe 8 and is conveyed in the air cushion mud conveying pipe 8, meanwhile, the compressed gas output by the high-pressure air source device 6 also enters the fluid injector 7 through the one-way valve 9 and forms an air cushion film at the side wall of the mud, and in the following conveying pipeline, the air cushion film partially or completely isolates the air cushion film from the pipe wall of the conveying pipe, so that the mud flows forwards under the support of the air cushion film, the flowing resistance of the mud is greatly reduced, the mud can be sprayed out due to the expansion of the pressure-reduced gas at the tail end of the conveying pipeline, and the feeding can be performed in a state of thinning particles, so that the system has better feeding effect when being applied to slurry spraying construction and fuel conveying to boilers.
The present embodiment can also be a new embodiment through the following changes:
preferably, the paste transfer pump 5 is a pulsation-free paste transfer pump.
The present invention is not limited to the above-described specific embodiments. It will be understood that various changes and modifications may be made without departing from the spirit and scope of the invention, which is intended to be included within the scope of the invention.
Claims (10)
1. A method of air cushion delivery of a pug comprising:
an air cushion-free mud material conveying process (1) which is an air cushion film-free mud material conveying process,
a gas compression step (2) for pressurizing a gas to generate a compressed gas,
an air cushion injection step (3) of injecting compressed gas into the side wall of the flowing pug and forming an air cushion film,
an air cushion pug conveying process (4) which is a pug conveying process with an air cushion film,
the air cushion-free mud material conveying process (1) and the gas compressing process (2) are arranged in parallel before the air cushion injection process (3), the air cushion mud material conveying process (4) is arranged after the air cushion injection process (3),
wherein the air cushion injection process (3) is implemented using a fluid injector comprising:
a housing (71) having a fluid medium injection port (711);
a separator tube (72) with a fluid passage on the tube wall for blocking part or all of the solid components in the pug from entering the outside of the separator tube (72) through the tube wall and allowing gas or liquid to enter the separator tube (72) through the fluid passage, the separator tube (72) being located in the housing (71),
a connecting pipe (73), wherein the housing (71) is connected with the connecting pipe (73) and clamps the isolating pipe (72) between the housing (71) and the connecting pipe (73) in the axial direction,
the isolation tube (72) further comprises a pressure-bearing tube (721) and a fiber cloth sleeve (722), wherein the fiber cloth sleeve (722) is positioned in the pressure-bearing tube (721) and is connected with the pressure-bearing tube (721), the tube wall of the pressure-bearing tube (721) is provided with a fluid channel,
the extending direction of the fluid channel is perpendicular to the axial direction of the isolating pipe, and one end of the fiber cloth sleeve (722) is clamped between the pressure-bearing pipe (721) and the connecting pipe (73); the other end of the fiber cloth cover (722) is clamped between the pressure-bearing pipe (721) and the shell (71).
2. The method for conveying the pug by the air cushion according to claim 1, wherein the non-air-cushion pug conveying process (1) further comprises a pug pumping process (11) and a pug non-return process (12), wherein the pug pumping process (11) is a process for pumping the pug, the pug non-return process (12) is a process for preventing the pug from flowing backwards, and the pug non-return process (12) is after the pug pumping process (11).
3. Method for transporting a pug with an air cushion according to claim 2, characterized in that the pug pumping process (11) is a pulse-free pug pumping.
4. A fluid injector, comprising:
a housing (71) having a fluid medium injection port (711);
a separator tube (72) with a fluid passage on the tube wall for blocking part or all of the solid components in the pug from entering the outside of the separator tube (72) through the tube wall and allowing gas or liquid to enter the separator tube (72) through the fluid passage, the separator tube (72) being located in the housing (71),
a connecting pipe (73), wherein the housing (71) is connected with the connecting pipe (73) and clamps the isolating pipe (72) between the housing (71) and the connecting pipe (73) in the axial direction,
the isolation tube (72) further comprises a pressure-bearing tube (721) and a fiber cloth sleeve (722), wherein the fiber cloth sleeve (722) is positioned in the pressure-bearing tube (721) and is connected with the pressure-bearing tube (721), the tube wall of the pressure-bearing tube (721) is provided with a fluid channel,
the extending direction of the fluid channel is perpendicular to the axial direction of the isolating pipe, and one end of the fiber cloth sleeve (722) is clamped between the pressure-bearing pipe (721) and the connecting pipe (73); the other end of the fiber cloth cover (722) is clamped between the pressure-bearing pipe (721) and the shell (71).
5. The fluid injector as claimed in claim 4, characterized in that the inner side of the fiber cloth cover (722) has protruding fiber bristles.
6. A pug delivery system comprising:
a paste transfer pump (5) for pumping the paste;
a high pressure gas source device (6) for generating compressed gas;
a fluid injector (7) for injecting compressed gas at the side wall of the flowing sludge and forming an air cushion film,
an air cushion pug conveying pipe (8) for conveying pugs with air cushion films,
the fluid injector (7) is respectively communicated with the paste delivery pump (5) and the air cushion pug delivery pipe (8), the high-pressure air source device (6) is communicated with the fluid medium injection opening (711) on the fluid injector (7),
the fluid injector includes:
a housing (71) having a fluid medium injection port (711);
a separator tube (72) with a fluid passage on the tube wall for blocking part or all of the solid components in the pug from entering the outside of the separator tube (72) through the tube wall and allowing gas or liquid to enter the separator tube (72) through the fluid passage, the separator tube (72) being located in the housing (71),
a connecting pipe (73), wherein the housing (71) is connected with the connecting pipe (73) and clamps the isolating pipe (72) between the housing (71) and the connecting pipe (73) in the axial direction,
the isolation tube (72) further comprises a pressure-bearing tube (721) and a fiber cloth sleeve (722), wherein the fiber cloth sleeve (722) is positioned in the pressure-bearing tube (721) and is connected with the pressure-bearing tube (721), the tube wall of the pressure-bearing tube (721) is provided with a fluid channel,
the extending direction of the fluid channel is perpendicular to the axial direction of the isolating pipe, and one end of the fiber cloth sleeve (722) is clamped between the pressure-bearing pipe (721) and the connecting pipe (73); the other end of the fiber cloth cover (722) is clamped between the pressure-bearing pipe (721) and the shell (71).
7. A mud delivery system according to claim 6, wherein the mud delivery pump (5) is a pulsation-free mud delivery pump.
8. A pug conveying system according to claim 6, further comprising a one-way valve (9) in communication with the high pressure gas source device (6) and the fluid injector (7), respectively.
9. A pug conveying system according to claim 7, further comprising a one-way valve (9) in communication with the high pressure gas source device (6) and the fluid injector (7), respectively.
10. A sludge transfer system as claimed in any one of claims 6 to 9 further comprising a sludge check valve (10) in communication with the sludge transfer pump (5) and the fluid injector (7), respectively, for preventing backflow of sludge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810286344.1A CN108253299B (en) | 2018-04-03 | 2018-04-03 | Method for conveying pug through air cushion, fluid injector and pug conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810286344.1A CN108253299B (en) | 2018-04-03 | 2018-04-03 | Method for conveying pug through air cushion, fluid injector and pug conveying system |
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| CN108253299A CN108253299A (en) | 2018-07-06 |
| CN108253299B true CN108253299B (en) | 2024-03-19 |
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| CN101985999A (en) * | 2010-11-19 | 2011-03-16 | 曹臻 | Efficient cement conveying pipeline |
| CN202148041U (en) * | 2011-07-05 | 2012-02-22 | 江苏国昊能源科技有限公司 | Dense-phase pneumatic conveying device for power pipe |
| CN202884289U (en) * | 2012-10-12 | 2013-04-17 | 三一重工股份有限公司 | Concrete conveying pipe and concrete pumping device |
| CN203979890U (en) * | 2014-07-31 | 2014-12-03 | 中国石油大学(华东) | A kind of crude oil pipeline system |
| CN105546351A (en) * | 2016-01-14 | 2016-05-04 | 中国矿业大学(北京) | Pipeline conveying resistance reducing device for high-concentration viscous and dense materials |
| CN105953076A (en) * | 2016-05-20 | 2016-09-21 | 西南石油大学 | Thick oil flowing resistance reducing device and method by injecting foam from screw groove hole |
| CN106195642A (en) * | 2016-08-30 | 2016-12-07 | 天津海辰华环保科技股份有限公司 | Ventilation type pipeline mud pressurizer |
| CN206018277U (en) * | 2016-08-31 | 2017-03-15 | 河源市东源鹰牌陶瓷有限公司 | A kind of slurry transport lines |
| CN107044146A (en) * | 2017-04-17 | 2017-08-15 | 武汉理工大学 | Pipeline mud device |
| CN209012797U (en) * | 2018-04-03 | 2019-06-21 | 巩长勇 | A kind of fluid injector and the pug transportation system using it |
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