CN103511834B - Feeder and using method thereof - Google Patents

Feeder and using method thereof Download PDF

Info

Publication number
CN103511834B
CN103511834B CN201310474962.6A CN201310474962A CN103511834B CN 103511834 B CN103511834 B CN 103511834B CN 201310474962 A CN201310474962 A CN 201310474962A CN 103511834 B CN103511834 B CN 103511834B
Authority
CN
China
Prior art keywords
feeding tube
spheroid
valve
ball
discharge nozzle
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.)
Active
Application number
CN201310474962.6A
Other languages
Chinese (zh)
Other versions
CN103511834A (en
Inventor
华君
赵小晖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gold East Paper Jiangsu Co Ltd
Original Assignee
Gold East Paper Jiangsu Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gold East Paper Jiangsu Co Ltd filed Critical Gold East Paper Jiangsu Co Ltd
Priority to CN201310474962.6A priority Critical patent/CN103511834B/en
Publication of CN103511834A publication Critical patent/CN103511834A/en
Application granted granted Critical
Publication of CN103511834B publication Critical patent/CN103511834B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Cleaning In General (AREA)

Abstract

A kind of feeder, it comprises: feeding tube, in order to conveying material; Spheroid, the internal diameter of its diameter and feeding tube quite also can at feeding in-pipe; Feed pump, it is connected to the front end of feeding tube, for material or cleaning solution are pumped into feeding tube, and promotes the movement of spheroid in feeding tube; Ball adding device, it is arranged in the rear end of feed pump on feeding tube, for pushing in feeding tube by spheroid; First and second discharge nozzle, its be connected to feeding tube rear end and after being arranged on ball adding device, respectively in order to discharge spheroid and material; First and second valve, it is arranged on the first and second discharge nozzle respectively; Induction control unit, it is arranged on feeding tube, for sense spheroid through time control the switch of the first valve and the second valve.The present invention also provides the using method of this device.Feeder of the present invention can ensure the concentration stabilize of material, avoids material to condense on pipeline, reduces material waste.

Description

Feeder and using method thereof
Technical field
The present invention relates to a kind of feeder of conveying material and the using method of this feeder.
Background technique
At present, filler is widely used in paper industry, and it can ensure intensity and the whiteness of paper, can reduce papermaking cost again.And the filler that paper industry often uses is grinding calcium carbonate (being called for short GCC), it is mechanically directly pulverized natural calcite, limestone, chalk, shell etc. and obtains.In paper industry, then GCC is configured to high concentration usually GCC suspension by adding water is carried by pipeline, if pipeline in time pusher cleaning, GCC easily in inner-walls of duct sedimentation condensation, blocking pipeline and affect filler quality.The method generally adopting clear water to promote filler (abbreviation pusher) is at present cleaned pipeline.But the method has following defect: if the pusher time is long, GCC fluctuation of concentration can be caused; If the pusher time is too short, cause cleaning insufficient.In addition, because pusher residual clear water in the duct must be discharged in time before next feeding.If water discharge time is too short, GCC fluctuation of concentration can be caused; If water discharge time is long, the waste of GCC can be caused again.
Summary of the invention
In view of the above circumstances, be necessary to provide a kind of feeder, it can effectively avoid filler suspension in inner-walls of duct sedimentation condensation, and effectively can ensure the stable of filler turbid liquid concentration, avoids waste.
In addition, there is a need to the using method that above-mentioned feeder is provided.
A kind of feeder, it comprises:
Feeding tube, in order to conveying material;
Spheroid, the diameter of this spheroid and the internal diameter of feeding tube quite also can at feeding in-pipes;
Feed pump, it is connected to the front end of feeding tube, for material or cleaning solution are pumped into feeding tube, and promotes the movement of spheroid in feeding tube;
Ball adding device, it is arranged in the rear end of feed pump and near feed pump on feeding tube, for pushing in feeding tube by spheroid;
First and second discharge nozzle, its be connected to feeding tube rear end and after being arranged on ball adding device, respectively in order to discharge spheroid and material;
First and second valve, it is arranged on the first and second discharge nozzle respectively;
Induction control unit, it is arranged on feeding tube before the first valve and the second valve, for sense spheroid through time control the opening and closing of the first valve and the second valve.
A using method for above-mentioned feeder, it comprises:
Rely on ball adding device to push in feeding tube by spheroid, now the first valve is opening state, and the second valve is closed condition;
Open feed pump conveying material, make material pump in described feeding tube, form material in feeding tube and to push the ball body, spheroid pushes away cleaning solution residual in feeding tube;
Induction control unit has sensed that spheroid passes through, after spheroid is by the first valve, responds to control unit controls the first valve closing and the second valve opening, make material enter the second discharge nozzle from the second valve, and spheroid is by discharging after the first valve from the first discharge nozzle;
Continue to rely on feed pump to pump into material in feeding tube, and discharged by the second valve and the second discharge nozzle successively;
Stop feed pump conveying material, again rely on ball adding device to push in feeding tube by spheroid;
Open feed pump transport cleaning liquid, make cleaning solution pump in described feeding tube, form cleaning solution in feeding tube and to push the ball body, spheroid pushes away material residual in feeding tube;
Induction control unit has sensed that spheroid passes through, after residual material is all by the second valve, responds to control unit controls the second valve closing and the first valve opening, make cleaning solution and spheroid enter the first discharge nozzle by the first valve and discharge from the first discharge nozzle, and residual material is by discharging from the second discharge nozzle after the second valve.
Feeder of the present invention effectively can carry out the conveying of material, rely on the rolling of spheroid in feeding tube, ensure the concentration stabilize of material, material is avoided to condense on conveyance conduit blocking, and the final stage of conveying has also scraped the material on feeding tube tube wall, reduce the waste in material conveying process, also can clean feeding tube in the lump.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the feeder of present pre-ferred embodiments.
Fig. 2 is the close-up schematic view of Fig. 1 of the present invention.
Fig. 3 is the schematic diagram that ball of the present invention pushes away cleaning solution.
Fig. 4 is the schematic diagram that ball of the present invention pushes away material.
Primary component symbol description
Feeder 100
Feeding tube 10
Feed pump 20
First discharge nozzle 30
First valve 31
Damping bend pipe 33
Second discharge nozzle 40
Second valve 41
Discharge chute 43
Material-storing groove 50
Water pipe 60
Ball adding device 70
To push the ball pipe 71
Goal tube 73
Eyeball-pushing device 75
Spheroid 80
Inductor 90
Controller 91
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Refer to Fig. 1, the feeder 100 of present pre-ferred embodiments comprises the feeding tube 10 in order to conveying material, and this feeding tube 10 of throughput direction according to material is divided into front-end and back-end, and material is transported to rear end by the front end of feeding tube 10.The front end of this feeding tube 10 is connected with feed pump 20, and the rear end of this feeding tube 10 is connected with two branched pipes, respectively called after first discharge nozzle 30 and the second discharge nozzle 40.
The outlet port of this feed pump 20 is connected with described feeding tube 10, and the inlet of this feed pump 20 is connected with material-storing groove 50 and a water pipe 60.Be equipped with material in this material-storing groove 50, in the present embodiment, material is the GCC suspension of high concentration.So, the cleaning solution of the material in material-storing groove 50 or a water pipe 60 can be pumped into described feeding tube 10 by this feed pump 20.Understandable, valve (not shown) is provided with between this material-storing groove 50 and feed pump 20, be provided with valve (not shown) between this water pipe 60 and feed pump 20, can enter with the cleaning solution controlling material and water pipe 60 in material-storing groove 50 or not enter in feed pump 20.Cleaning solution in this water pipe 60 is preferably clear water.
This feeding tube 10 is provided with ball adding device 70 to be pushed in feeding tube 10 by a spheroid 80 in the rear end of this feed pump 20 before the first and second discharge nozzle 30,40.This feeding tube 10 is pipe, and the diameter of this spheroid 80 is equal with the internal diameter of feeding tube 10.Spheroid 80 pushes after in feeding tube 10 by this ball adding device 70, this spheroid 80 this feed pump 20 contiguous.Refer to Fig. 2, in the present embodiment, this ball adding device 70 comprises the pipe 71 of pushing the ball be communicated with feeding tube 10 inside, the goal tube 73 be communicated with pipe 71 of pushing the ball, and can at the eyeball-pushing device 75 of start back and forth in pipe 71 of pushing the ball.This push the ball pipe 71 and feeding tube 10 vertical connection.This goal tube 73 and shape between pipe 71 of pushing the ball form an angle, and preferably, the direction that this goal tube 73 is arranged relies on gravity can roll into pipe 71 of pushing the ball for good from goal tube 73 can make spheroid 80.In the present embodiment, for reducing the impact force of spheroid 80 pairs of tube walls, this angle formed between pipe 71 and goal tube 73 of pushing the ball is less than 90 degree.During specific operation, described spheroid 80 relies on gravity to roll into from goal tube 73 to push the ball pipe 71, and eyeball-pushing device 75 promotes spheroid 80 again and rolls in feeding tube 10.
Understandable, described ball adding device 70 is not limited to above-mentioned structure, as long as ensure to make spheroid 80 can enter in feeding tube 10.Such as, above-mentioned ball adding device 70 also can be replaced by the pipeline (not shown) be directly communicated with feeding tube 10 inside, and this spheroid 80 can rely on gravity to roll in feeding tube 10 from this pipeline; Or above-mentioned goal tube 73 is not set, directly offer an opening (not shown) pushing the ball on pipe 71, described spheroid 80 is put into from opening pipe 71 of pushing the ball, then promote spheroid 80 by eyeball-pushing device 75 and roll in feeding tube 10.In addition, for preventing in material conveying process, material spills from feeding tube 10 with the position that is communicated with of ball adding device 70, carries out shutoff with leakage-proof material by above-mentioned eyeball-pushing device 75 or other blocking device.
It is mobile in this feeding tube 10 that the thrust that above-mentioned feed pump 20 produces when pumping material or cleaning solution needs enough to promote this spheroid 80.
Being appreciated that the impact force for reducing this spheroid 80 pairs of pipelines, this spheroid 80 can being set to metal inside outer cladding rubber layer.
First discharge nozzle 30 is provided with on the first valve 31, second discharge nozzle 40 and is provided with the second valve 41, flow out from the first discharge nozzle 30 or the second discharge nozzle 40 with the material controlled in feeding tube 10.This second discharge nozzle 40 is connected with discharge chute 43, and material can enter discharge chute 43 from the second discharge nozzle 40.First discharge nozzle 30 is in order to discharge cleaning solution and spheroid 80.Conveniently control, in the present embodiment, second discharge nozzle 40 is set to horizontal pipeline, this second valve 41 is installed on this horizontal pipeline, this first discharge nozzle 30 and the second discharge nozzle 40 have an angle, make spheroid 80 that gravity can be relied on gravity can be relied on to roll in the first discharge nozzle 30 by the first valve 31 and the first discharge nozzle 30(and spheroid 80), spheroid 80 like this relies on gravity only can enter the first valve 31, and can not enter the second valve 41.The diameter of spheroid 80 is less than or equal to the internal diameter of the first discharge nozzle 30.
For reducing the impact force to tube wall when spheroid 80 falls, this first discharge nozzle 30 end also can connect one section of damping bend pipe 33.
This feeding tube 10 was also provided with an inductor 90 before the first valve 31 and the second valve 41, and this inductor 90 is electrically connected a controller 91; When inductor 90 has sensed that spheroid 80 is through out-of-date, this inductor 90 sends a signal to controller 91, and controller 91 Received signal strength also controls the opening and closing of the first valve 31 and the second valve 41.
Use feeder 100 of the present invention to carry out the method for feeding, it comprises the starting stage: ball pushes away cleaning solution (discharging cleaning solution residual in feeding tube 10), interstage and final stage: ball pushes away material (discharging material residual in feeding tube 10).
Starting stage: ball pushes away cleaning solution, detailed process is as follows:
Step S1: rely on ball adding device 70 to be pushed in feeding tube 10 by described spheroid 80.
In the present embodiment, be specially: described spheroid 80 is put into goal tube 73, this spheroid 80 relies on gravity to roll into from goal tube 73 pipe 71 of pushing the ball, and eyeball-pushing device 75 promotes spheroid 80 and rolls in feeding tube 10.
Now, the first valve 31 is opening state, and the second valve 41 is closed condition; And feeding tube 10, in advance through cleaning, remains cleaning solution in feeding tube 10 before feeding.
Step S2: open feed pump 20 and the valve between this material-storing groove 50 and feed pump 20, relies on feed pump 20 to pump in described feeding tube 10 to make the material in material-storing groove 50.
The thrust that this feed pump 20 produces promotes material and this spheroid 80 moves to the rear end of feeding tube 10.
Now, form material in feeding tube 10 and to push the ball body 80, spheroid 80 pushes away cleaning solution residual in feeding tube 10, as shown in Figure 3.Note: because spheroid 80 is pushed into feeding tube 10 its contiguous feed pump 20(rear such as, ball adding device 70 vicinity can be arranged on the rear end of feed pump 20), therefore when feed pump 20 pump into material in feeding tube 10 time, material can be formed to push the ball body 80, there is no cleaning solution between material and spheroid 80 or only have negligible cleaning solution.
Step S3: spheroid 80 is through inductor 90, and this inductor 90 sends a signal to controller 91, control the first valve 31 at spheroid 80 by controller 91 after the first valve 31 and close, the second valve 41 is opened.For ensureing that spheroid 80 is by just closing the first valve 31 after the first valve 31, after this controller 91 receives the signal of inductor 90, can the time delay some time, ensure that spheroid 80 is by the first valve 31.
So, spheroid 80 and cleaning solution enter the first discharge nozzle 30 by the first valve 31 and discharge from the first discharge nozzle 30; Material enters the second discharge nozzle 40 from the second valve 41, and enters in discharge chute 43 through the second discharge nozzle 40.
Above-mentioned step S1-S3 is the starting stage: ball pushes away the process of cleaning solution, can effectively prevent cleaning solution and be mixed in material and have an impact to the concentration of material.
In the interstage (step S4): as required, continue to rely on feed pump 20 to pump into material in feeding tube 10, and discharged by the second valve 41, second discharge nozzle 40 successively.
Because carried material has high concentration, need clean in time feeding tube 10, because clean not in time, then the tube wall that material condenses in feeding tube 10 after becoming dry will become and be difficult to removal, and affect the subsequent delivery of material.
Final stage: ball pushes away material, detailed process comprises the following steps:
Step S5: make feed pump 20 stop conveying material, and rely on ball adding device 70 to be pushed in feeding tube 10 by described spheroid 80.
Spheroid 80 is pushed in feeding tube 10 and specifically can join upper step S1.
Step S6: open feed pump 20 and the valve between this water pipe 60 and feed pump 20, relies on feed pump 20 to pump in described feeding tube 10 to make the cleaning solution in water pipe 60.
Now, the first valve 31 is closed condition, and the second valve 41 is opening state.
The thrust that this feed pump 20 produces promotes cleaning solution and this spheroid 80 moves to the rear end of feeding tube 10.
Now, form cleaning solution in feeding tube 10 and to push the ball body 80, spheroid 80 pushes away material residual in feeding tube 10, as shown in Figure 4.Note: because spheroid 80 is pushed into its contiguous feed pump 20 after feeding tube 10, therefore when feed pump 20 pump into cleaning solution in feeding tube 10 time, cleaning solution can be formed and to push the ball body 80, there is no material between cleaning solution and spheroid 80 or only have negligible material.
Because the diameter of spheroid 80 is equal with the internal diameter of feeding tube 10, therefore described spheroid 80 can by remain in feeding tube 10 tube wall material scraper under, prevent material in feeding tube 10 tube wall condensation blocking.Cleaning solution in feeding tube 10 can effectively clean in pipeline.
Step S7: spheroid 80 is through inductor 90, and this inductor 90 sends a signal to controller 91, all control the second valve 41 by controller 91 after the second valve 41 at residual material and close, the first valve 31 is opened.For ensureing that residual material is by just closing the second valve 41 after the second valve 41, after this controller 91 receives the signal of inductor 90, can the time delay some time, ensure that residual material can all by the second valve 41.So, residual material enters the second discharge nozzle 40 by the second valve 41, enters in discharge chute 43 through the second discharge nozzle 40; Spheroid 80 and cleaning solution enter the first discharge nozzle 30 by the first valve 31 and discharge from the first discharge nozzle 30.
Above-mentioned step S5-S7 is final stage: ball pushes away the process of material, so, not only can send under the material scraper remaining in feeding tube 10 tube wall in the second discharge nozzle 40, avoid the waste of material, but also can clean feeding tube 10.
Feeder 100 of the present invention effectively can carry out the conveying of material, rely on the rolling of spheroid 80 in feeding tube 10, ensure the concentration stabilize of material, material is avoided to condense on conveyance conduit blocking, and the final stage of conveying has also scraped the material on feeding tube 10 tube wall, reduce the waste in material conveying process, also can clean feeding tube 10 in the lump.
In addition, those skilled in the art also can make various amendments in other form and details, interpolation and replacement in the claims in the present invention scope of disclosure and spirit.Certainly, the changes such as these various amendments made according to the present invention's spirit, interpolation and replacement, all should be included within the present invention's scope required for protection.

Claims (12)

1. a feeder, is characterized in that: this feeder comprises:
Feeding tube, in order to conveying material;
Spheroid, the diameter of this spheroid and the internal diameter of feeding tube quite also can at feeding in-pipes;
Feed pump, it is connected to the front end of feeding tube, for material or cleaning solution are pumped into feeding tube, at the conveying material initial stage, the thrust that feed pump produces pushes described material and described spheroid moves to the rear end of feeding tube, form material in feeding tube to push the ball body, spheroid pushes away remaining cleaning fluid, after having carried material, cleaning solution pumps in described feeding tube by feed pump, the thrust of described feed pump promotes described cleaning solution and described spheroid moves to the rear end of feeding tube, and form cleaning solution in feeding tube and to push the ball body, spheroid pushes away material residual in feeding tube;
Ball adding device, it is arranged in the rear end of feed pump and near feed pump on feeding tube, for pushing in feeding tube by spheroid;
First and second discharge nozzle, its be connected to feeding tube rear end and after being arranged on ball adding device, respectively in order to discharge spheroid and material;
First and second valve, it is arranged on the first and second discharge nozzle respectively;
Induction control unit, it is arranged on feeding tube before the first valve and the second valve, for sense spheroid through time control the opening and closing of the first valve and the second valve.
2. feeder as claimed in claim 1, it is characterized in that: the outlet port of this feed pump is connected with described feeding tube, the inlet of this feed pump is connected with one and is equipped with the material-storing groove of material and the water pipe of an accommodating cleaning solution, and be provided with valve between material-storing groove and feed pump, be provided with valve between this water pipe and feed pump.
3. feeder as claimed in claim 1, it is characterized in that: this ball adding device comprises that pushing the ball of being communicated with feeding tube inside is managed, the goal tube that is communicated with pipe of pushing the ball and can at the eyeball-pushing device of start back and forth in pipe of pushing the ball, described spheroid relies on gravity to roll into from goal tube pipe of pushing the ball, and eyeball-pushing device promotes spheroid and rolls in feeding tube.
4. feeder as claimed in claim 3, is characterized in that: this push the ball pipe and feeding tube vertical connection, and this angle formed between pipe and goal tube of pushing the ball is less than or equal to 90 degree.
5. feeder as claimed in claim 1, is characterized in that: this ball adding device is a pipeline be directly communicated with feeding tube inside, and this spheroid relies on gravity to roll in feeding tube from this pipeline; Or this ball adding device comprises pushing the ball of being communicated with feeding tube inside and to manage and can at the eyeball-pushing device of start back and forth in pipe of pushing the ball, an opening offered by this pipe of pushing the ball, and described spheroid puts into from opening pipe of pushing the ball, then is rolled in feeding tube by eyeball-pushing device promotion spheroid.
6. feeder as claimed in claim 1, is characterized in that: this spheroid is set to metal inside outer cladding rubber layer.
7. feeder as claimed in claim 1, it is characterized in that: the second discharge nozzle is horizontal pipeline, first discharge nozzle and the second discharge nozzle have an angle, and to make spheroid that gravity can be relied on by the first valve and the first discharge nozzle, the diameter of this spheroid is less than or equal to the internal diameter of the first discharge nozzle.
8. feeder as claimed in claim 1, is characterized in that: this first discharge nozzle end is also connected with damping bend pipe.
9. feeder as claimed in claim 1, is characterized in that: this second discharge nozzle is connected with discharge chute, and material enters discharge chute from the second discharge nozzle.
10. feeder as claimed in claim 1, is characterized in that: spheroid pushes after in feeding tube by this ball adding device, this spheroid this feed pump contiguous.
11. feeders as claimed in claim 1, it is characterized in that: this induction control unit comprises inductor and is electrically connected the controller of inductor, when inductor has sensed that spheroid is through out-of-date, this inductor sends a signal to controller, and controller Received signal strength also controls the opening and closing of the first valve and the second valve.
The using method of the feeder described in 12. 1 kinds of claim 1-11 any one, it comprises:
Rely on ball adding device to push in feeding tube by spheroid, now the first valve is opening state, and the second valve is closed condition;
Open feed pump conveying material, make material pump in described feeding tube, form material in feeding tube and to push the ball body, spheroid pushes away cleaning solution residual in feeding tube;
Induction control unit has sensed that spheroid passes through, after spheroid is by the first valve, responds to control unit controls the first valve closing and the second valve opening, make material enter the second discharge nozzle from the second valve, and spheroid is by discharging after the first valve from the first discharge nozzle;
Continue to rely on feed pump to pump into material in feeding tube, and discharged by the second valve and the second discharge nozzle successively;
Stop feed pump conveying material, again rely on ball adding device to push in feeding tube by spheroid;
Open feed pump transport cleaning liquid, make cleaning solution pump in described feeding tube, form cleaning solution in feeding tube and to push the ball body, spheroid pushes away material residual in feeding tube;
Induction control unit has sensed that spheroid passes through, after residual material is all by the second valve, responds to control unit controls the second valve closing and the first valve opening, make cleaning solution and spheroid enter the first discharge nozzle by the first valve and discharge from the first discharge nozzle, and residual material is by discharging from the second discharge nozzle after the second valve.
CN201310474962.6A 2013-10-12 2013-10-12 Feeder and using method thereof Active CN103511834B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310474962.6A CN103511834B (en) 2013-10-12 2013-10-12 Feeder and using method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310474962.6A CN103511834B (en) 2013-10-12 2013-10-12 Feeder and using method thereof

Publications (2)

Publication Number Publication Date
CN103511834A CN103511834A (en) 2014-01-15
CN103511834B true CN103511834B (en) 2016-03-02

Family

ID=49895010

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310474962.6A Active CN103511834B (en) 2013-10-12 2013-10-12 Feeder and using method thereof

Country Status (1)

Country Link
CN (1) CN103511834B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108253297A (en) * 2018-02-10 2018-07-06 西南石油大学 A kind of oil product sequentially-fed system and method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5890531A (en) * 1995-04-18 1999-04-06 Noram Engineering And Constructors Ltd. Apparatus for the self-cleaning of process tubes
CN201537614U (en) * 2009-05-06 2010-08-04 西安金立石油科技有限公司 Ball injection pigging device
CN102233345A (en) * 2010-05-05 2011-11-09 大庆汇达兴业机械制造有限公司 Automatic ball-throwing pipe cleaner
CN202613052U (en) * 2012-05-21 2012-12-19 昌乐金晖矿物科技有限公司 Short-distance transportation device for superfine heavy calcium carbonate slurry product
CN102927451A (en) * 2011-12-07 2013-02-13 天津大学 Method for detecting tiny leakage of oil transmission pipeline
CN202733453U (en) * 2012-05-15 2013-02-13 中国石油天然气股份有限公司 Small leak detection system for fluid pipeline

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5890531A (en) * 1995-04-18 1999-04-06 Noram Engineering And Constructors Ltd. Apparatus for the self-cleaning of process tubes
CN201537614U (en) * 2009-05-06 2010-08-04 西安金立石油科技有限公司 Ball injection pigging device
CN102233345A (en) * 2010-05-05 2011-11-09 大庆汇达兴业机械制造有限公司 Automatic ball-throwing pipe cleaner
CN102927451A (en) * 2011-12-07 2013-02-13 天津大学 Method for detecting tiny leakage of oil transmission pipeline
CN202733453U (en) * 2012-05-15 2013-02-13 中国石油天然气股份有限公司 Small leak detection system for fluid pipeline
CN202613052U (en) * 2012-05-21 2012-12-19 昌乐金晖矿物科技有限公司 Short-distance transportation device for superfine heavy calcium carbonate slurry product

Also Published As

Publication number Publication date
CN103511834A (en) 2014-01-15

Similar Documents

Publication Publication Date Title
CN204280550U (en) A kind of improved type powder screw transmitting device
SE0950334L (en) Method and apparatus for emptying the floor of a soda pan
CN106516753A (en) Storehouse pump ash conveying device
CN103511834B (en) Feeder and using method thereof
CA2623833C (en) Method and device for charging processing plants
CN101712412B (en) Catalyst unloading device
CA2783495C (en) Method and apparatus for delivering a grinding media to a grinding mill
CN204057246U (en) Solve the top-guiding type storehouse pump of discharging pipe plug phenomenon
CN204551123U (en) Paper machine broke treatment pond
CN203686581U (en) No dead angle return material cleaning mobile tank feeding system
JP5854822B2 (en) Sand transport equipment
JP4730666B2 (en) Method and apparatus for cleaning pneumatic transportation piping
JP4336350B2 (en) Method and apparatus for controlling gas transport
CN206881492U (en) A kind of lime stone slurry discharging discharger
CN208604353U (en) A kind of dyeing assistant transportation system
CN105755882A (en) Paper machine broken paper processing pool
CN220560058U (en) Vertical cone bottom dry anaerobic tank external circulation pipeline air hammer prevention feeding system
CN105114329A (en) Integrated prefabricated pump station with automatic slag discharging function
EP3353110B1 (en) Container emptying device and methods for operating and cleaning a container emptying device
KR20160011053A (en) Powder tranfer pipe for prevention device blocking of flow path
CN212284620U (en) Automatic male buckle device that spouts of petroleum pipeline
CN211990095U (en) Clean system is scraped to material in pipeline based on aseptic compressed air
CN203641000U (en) Liquid conveying device
CN205634236U (en) Automatic material loading liquid filling machine
CN111087183B (en) Lime device with pneumatic back blowing equipment

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant