CN110217597A - A kind of fluidization lime stone handling system - Google Patents
A kind of fluidization lime stone handling system Download PDFInfo
- Publication number
- CN110217597A CN110217597A CN201910434038.2A CN201910434038A CN110217597A CN 110217597 A CN110217597 A CN 110217597A CN 201910434038 A CN201910434038 A CN 201910434038A CN 110217597 A CN110217597 A CN 110217597A
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- Prior art keywords
- air compressor
- lime stone
- conduit
- lower pressure
- handling system
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/06—Gas pressure systems operating without fluidisation of the materials
-
- 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
- B65G53/58—Devices for accelerating or decelerating flow of the materials; Use of pressure generators
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Transport Of Granular Materials (AREA)
Abstract
The present invention relates to lime stone conveying technology fields, and disclose a kind of fluidization lime stone handling system, bottom including powder workshop processed offers discharge port, the discharge port internal whorl is set with conduit, the other end of the conduit is equipped with storehouse pump, the discharge port of the storehouse pump is communicated with limestone powder bin by another conduit, the ventilation opening at storehouse pump top is equipped with air compressor, the end of the conduit is communicated with lower pressure air compressor machine, the bottom of the limestone powder bin offers feed inlet, the output end and lower pressure air compressor machine of the central processing unit and the input terminal of air compressor are electrically connected.The fluidization lime stone handling system, using the impact force of its compressed gas limestone particle is crushed to by setting lower pressure air compressor machine smaller, limestone particle is reduced to the abrasion between tube wall, the service life of conduit is increased, while making conveying of the transportation system suitable for a variety of particle size diameter lime stones.
Description
Technical field
The present invention relates to lime stone conveying technology field, specially a kind of fluidization lime stone handling system.
Background technique
Desulphurization in circulating fluidized bed boiler is referred to using burnt lime lapicide's skill is mixed with reaching the desulfurization of national requirements for environmental protection
Mark, is typically chosen free-standing limestone desulfurization system, i.e., lime stone feeding system and coal supply system is completely separable, can be freely
Lime stone feeding coal is adjusted at any time according to the discharge value of sulfur dioxide, to achieve the purpose that guarantee discharge and economical operation.
Currently, fluidization lime stone handling system has the disadvantages that；
One, due to grinding after agstone grain corner it is more so that hardness height leads to the mill to pipeline during transportation
Damage greatly, greatly reduces the service life of conveyance conduit；
Two, since agstone degassing is strong, lead to lime stone poor fluidity, delivery rate is extremely slow, reduces conveying
Efficiency；
Three, size distribution difference is big (30um~10mm), causes transmission process variable grain flow velocity different, easily causes pipe
Occurs the problem of local stoppages inside road；
Four, the bulk density of lime stone larger (1.1~1.4t/m3) and the content of calcium oxide are high, and lime stone is caused to absorb water
Property it is high, viscosity is big, and particle is easy deposition and the easily moisture absorption is hardened, if Selection and Design is improper, easily causes plugging.
Therefore it is urgent to provide a kind of new and effective lime stone handling systems.
Summary of the invention
The present invention provides a kind of fluidization lime stone handling system, have that delivery rate is reasonable, pipe wear is low and makes
With the big advantage of range.
The invention provides the following technical scheme: a kind of fluidization lime stone handling system, the bottom including powder workshop processed is opened
Equipped with discharge port, the discharge port internal whorl is set with conduit, and the other end of the conduit is equipped with storehouse pump, the storehouse pump
Discharge port is communicated with limestone powder bin by another conduit, and the ventilation opening at storehouse pump top is equipped with air compressor, institute
The end for stating conduit is communicated with lower pressure air compressor machine, and the bottom of the limestone powder bin offers feed inlet, the feed inlet
Inside and the end part seal of conduit be set with, the input terminal of storehouse pump is electrically connected with central processing unit, the central processing
The output end and lower pressure air compressor machine of device and the input terminal of air compressor are electrically connected, the lower pressure air compressor machine and sky
A gas flow rate induction end is electrically connected in the output end of air compressor, and the output end of the gas flow rate induction end is in
The input terminal of central processor is electrically connected.
Wherein, the quantity of storehouse pump is several, and the top of each storehouse pump is all provided with that there are two compatible air pressures
Contracting machine ensure that conveying distance using to a group storehouse pump, while provide compressed air using air compressor, ensure that storehouse pump to stone
The efficiency of lime stone conveying.
Wherein, the quantity of the lower pressure air compressor machine be several, and between every two lower pressure air compressor machine between
1,500 meters are divided into, using the setting of lower pressure air compressor machine, so that lime stone disposable conveying distance can achieve one
1500 meters, greatly improve the conveying distance of prior art lime stone.
Wherein, the conduit is divided into tubule and extra heavy pipe, and two ports of the end of tubule respectively with storehouse pump bottom mutually interconnect
It connects, the end of extra heavy pipe and the inside mutual sheathing of discharge port and feed inlet, and the front of extra heavy pipe is mounted on control valve, the control
The input terminal of valve processed and the output end of central processing unit are electrically connected, output end and the gas flow rate induction end of the control valve
Input terminal is electrically connected, and allows control valve to adjust the flow velocity of lime stone pipeline according to gas flow rate induction end in time, i.e.,
It ensure that the consistent of lime stone flow velocity in the transportation system, and the intelligent utilization for realizing rational energy.
Wherein, the air source of the lower pressure air compressor machine is compressed air, will using the impact force of its compressed gas
Limestone particle is crushed to smaller, reduces limestone particle to the abrasion between tube wall, increases the service life of conduit.
Wherein, the central processing unit can access PLC programmable control system, also can access other DCS control systems, makes
The programming for obtaining central processing unit has great flexibility, greatly improves the range of fit of the transportation system.
Wherein, a lower pressure air compressor machine is mounted on close to discharge outlet, so that lower pressure air compressor machine can be with
The limestone particle exported in powder workshop processed is crushed to smaller at the first time, reduces limestone particle to the mill between tube wall
Damage.
The present invention have it is following the utility model has the advantages that
1, the fluidization lime stone handling system utilizes the impact force of its compressed gas by setting lower pressure air compressor machine
Limestone particle is crushed to smaller, reduces limestone particle to the abrasion between tube wall, increase the service life of conduit,
The transportation system is made to be suitable for the conveying of a variety of particle size diameter lime stones simultaneously.
2, the fluidization lime stone handling system provides the dynamic of flowing by being equipped with storehouse pump and air compressor for lime stone
Power, while multiple groups lower pressure air compressor machine being cooperated to carry out mending speed to the fluid in pipeline, it ensure that the flow velocity of fluids within pipes begins
It reaches unanimity eventually, avoids the problem of decline of lime stone flow velocity causes pipeline local stoppages, increase the efficiency of lime stone conveying.
3, fluidization lime stone handling system, by setting central processing unit according to gas flow rate induction end come intelligent
The power for adjusting lower pressure air compressor machine, storehouse pump, air compressor and control valve, that is, ensure that lime rock glacier in the transportation system
Fast is consistent, and the intelligent utilization for realizing rational energy, not only stable but also efficient.
Detailed description of the invention
Fig. 1 is physical structure diagram of the present invention；
Fig. 2 is structure of the invention system block diagram；
Fig. 3 is partial structurtes system block diagram of the present invention.
In figure: 1, powder workshop processed；2, discharge port；3, conduit；4, lower pressure air compressor machine；5, storehouse pumps；6, air compressor；
7, feed inlet；8, limestone powder bin；9, central processing unit；10, gas flow rate induction end；11, control valve.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
Fig. 1-3, a kind of fluidization lime stone handling system are please referred to, the bottom including powder workshop 1 processed offers discharge port
2,2 internal whorl of discharge port is set with conduit 3, and the other end of conduit 3 is equipped with storehouse pump 5, and the discharge port of storehouse pump 5 passes through another
Conduit 3 is communicated with limestone powder bin 8, and the ventilation opening at 5 top of storehouse pump is equipped with air compressor 6, the end of conduit 3 be communicated with compared with
Low-pressure air compressor machine 4, the bottom of limestone powder bin 8 offer feed inlet 7, the inside of feed inlet 7 and the end part seal set of conduit 3
The input terminal of dress, storehouse pump 5 is electrically connected with central processing unit 9, the output end and lower pressure air compressor machine 4 of central processing unit 9 and
The input terminal of air compressor 6 is electrically connected, and the output end of lower pressure air compressor machine 4 and air compressor 6 is electrically connected
One gas flow rate induction end 10, the output end of gas flow rate induction end 10 and the input terminal of central processing unit 9 are electrically connected.
Wherein, storehouse pump 5 quantity be several, and each storehouse pump 5 top be all provided with there are two compatible air compress
Machine 6 ensure that conveying distance using to a group storehouse pump 5, while provide compressed air using air compressor 6, ensure that storehouse pumps 5 pairs
The efficiency of lime stone conveying.
Wherein, the quantity of lower pressure air compressor machine 4 is several, and the interval between every two lower pressure air compressor machine 4
It is 1,500 meters, using the setting of lower pressure air compressor machine 4, so that the disposable conveying distance of lime stone can achieve 1,000
500 meters, greatly improve the conveying distance of prior art lime stone.
Wherein, conduit 3 divides for tubule and extra heavy pipe, and two ports that the end of tubule pumps 5 bottoms with storehouse respectively are connected with each other,
The end of extra heavy pipe and the inside mutual sheathing of discharge port 2 and feed inlet 7, and the front of extra heavy pipe is mounted on control valve 11, control
The input terminal of valve 11 and the output end of central processing unit 9 are electrically connected, the output end and gas flow rate induction end 10 of control valve 11
Input terminal be electrically connected, allow control valve 11 to adjust the stream of lime stone pipeline according to gas flow rate induction end 10 in time
Speed ensure that the consistent of lime stone flow velocity in the transportation system, and the intelligent utilization for realizing rational energy.
Wherein, the air source of lower pressure air compressor machine 4 is compressed air, using the impact force of its compressed gas by lime
Stone particle is crushed to smaller, reduces limestone particle to the abrasion between tube wall, increases the service life of conduit 3.
Wherein, central processing unit 9 can access PLC programmable control system, also can access other DCS control systems, so that
The programming of central processing unit 9 has great flexibility, greatly improves the range of fit of the transportation system.
Wherein, a lower pressure air compressor machine 4 is mounted on close at discharge port 2, so that lower pressure air compressor machine 4 can be with
The limestone particle exported in powder workshop 1 processed is crushed to smaller by one time, reduces limestone particle to the abrasion between tube wall.
Embodiment 2
Fig. 1-3, a kind of fluidization lime stone handling system are please referred to, the bottom including powder workshop 1 processed offers discharge port
2,2 internal whorl of discharge port is set with conduit 3, and the other end of conduit 3 is equipped with storehouse pump 5, and the discharge port of storehouse pump 5 passes through another
Conduit 3 is communicated with limestone powder bin 8, and the ventilation opening at 5 top of storehouse pump is equipped with air compressor 6, the end of conduit 3 be communicated with compared with
Low-pressure air compressor machine 4, the bottom of limestone powder bin 8 offer feed inlet 7, the inside of feed inlet 7 and the end part seal set of conduit 3
The input terminal of dress, storehouse pump 5 is electrically connected with central processing unit 9, the output end and lower pressure air compressor machine 4 of central processing unit 9 and
The input terminal of air compressor 6 is electrically connected, and the output end of lower pressure air compressor machine 4 and air compressor 6 is electrically connected
One gas flow rate induction end 10, the output end of gas flow rate induction end 10 and the input terminal of central processing unit 9 are electrically connected.
Wherein, storehouse pump 5 quantity be several, and each storehouse pump 5 top be all provided with there are two compatible air compress
Machine 6 ensure that conveying distance using to a group storehouse pump 5, while provide compressed air using air compressor 6, ensure that storehouse pumps 5 pairs
The efficiency of lime stone conveying.
Wherein, the quantity of lower pressure air compressor machine 4 is several, and the interval between every two lower pressure air compressor machine 4
It is 1,400 meters, using the setting of lower pressure air compressor machine 4, so that the disposable conveying distance of lime stone can achieve 1,000
400 meters, greatly improve the conveying distance of prior art lime stone.
Wherein, conduit 3 divides for tubule and extra heavy pipe, and two ports that the end of tubule pumps 5 bottoms with storehouse respectively are connected with each other,
The end of extra heavy pipe and the inside mutual sheathing of discharge port 2 and feed inlet 7, and the front of extra heavy pipe is mounted on control valve 11, control
The input terminal of valve 11 and the output end of central processing unit 9 are electrically connected, the output end and gas flow rate induction end 10 of control valve 11
Input terminal be electrically connected, allow control valve 11 to adjust the stream of lime stone pipeline according to gas flow rate induction end 10 in time
Speed ensure that the consistent of lime stone flow velocity in the transportation system, and the intelligent utilization for realizing rational energy.
Wherein, the air source of lower pressure air compressor machine 4 is compressed air, using the impact force of its compressed gas by lime
Stone particle is crushed to smaller, reduces limestone particle to the abrasion between tube wall, increases the service life of conduit 3.
Wherein, central processing unit 9 can access PLC programmable control system, also can access other DCS control systems, so that
The programming of central processing unit 9 has great flexibility, greatly improves the range of fit of the transportation system.
Wherein, a lower pressure air compressor machine 4 is mounted on close at discharge port 2, so that lower pressure air compressor machine 4 can be with
The limestone particle exported in powder workshop 1 processed is crushed to smaller by one time, reduces limestone particle to the abrasion between tube wall.
Embodiment 3
Fig. 1-3, a kind of fluidization lime stone handling system are please referred to, the bottom including powder workshop 1 processed offers discharge port
2,2 internal whorl of discharge port is set with conduit 3, and the other end of conduit 3 is equipped with storehouse pump 5, and the discharge port of storehouse pump 5 passes through another
Conduit 3 is communicated with limestone powder bin 8, and the ventilation opening at 5 top of storehouse pump is equipped with air compressor 6, the end of conduit 3 be communicated with compared with
Low-pressure air compressor machine 4, the bottom of limestone powder bin 8 offer feed inlet 7, the inside of feed inlet 7 and the end part seal set of conduit 3
The input terminal of dress, storehouse pump 5 is electrically connected with central processing unit 9, the output end and lower pressure air compressor machine 4 of central processing unit 9 and
The input terminal of air compressor 6 is electrically connected, and the output end of lower pressure air compressor machine 4 and air compressor 6 is electrically connected
One gas flow rate induction end 10, the output end of gas flow rate induction end 10 and the input terminal of central processing unit 9 are electrically connected.
Wherein, storehouse pump 5 quantity be several, and each storehouse pump 5 top be all provided with there are two compatible air compress
Machine 6 ensure that conveying distance using to a group storehouse pump 5, while provide compressed air using air compressor 6, ensure that storehouse pumps 5 pairs
The efficiency of lime stone conveying.
Wherein, the quantity of lower pressure air compressor machine 4 is several, and the interval between every two lower pressure air compressor machine 4
It is 1,600 meters, using the setting of lower pressure air compressor machine 4, so that the disposable conveying distance of lime stone can achieve 1,000
600 meters, greatly improve the conveying distance of prior art lime stone.
Wherein, conduit 3 divides for tubule and extra heavy pipe, and two ports that the end of tubule pumps 5 bottoms with storehouse respectively are connected with each other,
The end of extra heavy pipe and the inside mutual sheathing of discharge port 2 and feed inlet 7, and the front of extra heavy pipe is mounted on control valve 11, control
The input terminal of valve 11 and the output end of central processing unit 9 are electrically connected, the output end and gas flow rate induction end 10 of control valve 11
Input terminal be electrically connected, allow control valve 11 to adjust the stream of lime stone pipeline according to gas flow rate induction end 10 in time
Speed ensure that the consistent of lime stone flow velocity in the transportation system, and the intelligent utilization for realizing rational energy.
Wherein, the air source of lower pressure air compressor machine 4 is compressed air, using the impact force of its compressed gas by lime
Stone particle is crushed to smaller, reduces limestone particle to the abrasion between tube wall, increases the service life of conduit 3.
Wherein, central processing unit 9 can access PLC programmable control system, also can access other DCS control systems, so that
The programming of central processing unit 9 has great flexibility, greatly improves the range of fit of the transportation system.
Wherein, a lower pressure air compressor machine 4 is mounted on close at discharge port 2, so that lower pressure air compressor machine 4 can be with
The limestone particle exported in powder workshop 1 processed is crushed to smaller by one time, reduces limestone particle to the abrasion between tube wall.
Wherein, the lower pressure air compressor machine 4 in embodiment 1,2 and 3 is the net environmentally friendly brand 660MW unit air compressor machine of dragon；Storehouse
Pump 5 is the LCXYB model of the net environmental protection company of dragon；Air compressor 6 is the oily silent air compressor of panda company；Central processing unit 9
For the CPU of the B450+R52600 model of HuaShuo Co., Ltd；Gas flow rate induction end 10 is the FTM06 flowmeter of Cheng Tian company；Control
Valve 11 is 5320 model solenoid valves of SMC company.
Working principle:
First after working in powder workshop 1 processed, by central processing unit 9 open lower pressure air compressor machine 4, storehouse pump 5,
Then air compressor 6 and control valve 11 are imported 1 lime stone of powder workshop processed in limestone powder bin 8 by conduit 3, wherein gas
Body flow velocity induction end 10 is located at the inside of conduit 3, senses that the flow speed data inside conduit 3 returns by gas flow rate induction end 10
It is fed in central processing unit 9, then 5, air compressor is pumped come intelligent control lower pressure air compressor machine 4, storehouse by central processing unit 9
6 and control of the control valve 11 to the lime stone flow velocity inside conduit 3, it is finally completed the conveying of lime stone.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of fluidization lime stone handling system, the bottom including powder workshop (1) processed offers discharge port (2), the discharging
Mouth (2) internal whorl is set with conduit (3), and the other end of the conduit (3) is equipped with storehouse pump (5), the discharging of the storehouse pump (5)
Mouth is communicated with limestone powder bin (8) by another conduit (3), it is characterised in that: the ventilation opening installation at the top of the storehouse pump (5)
Have air compressor (6), the end of the conduit (3) is communicated with lower pressure air compressor machine (4), the input terminal of the storehouse pump (5)
It is electrically connected with central processing unit (9), the output end and lower pressure air compressor machine (4) and air pressure of the central processing unit (9)
The input terminal of contracting machine (6) is electrically connected, and the output end of the lower pressure air compressor machine (4) and air compressor (6) is electrical respectively
Connect a gas flow rate induction end (10), the output end of the gas flow rate induction end (10) is defeated with central processing unit (9)
Enter end to be electrically connected.
2. a kind of fluidization lime stone handling system according to claim 1, it is characterised in that: the number of the storehouse pump (5)
Amount is several, and is all provided at the top of each storehouse pump (5) there are two compatible air compressor (6).
3. a kind of fluidization lime stone handling system according to claim 1, it is characterised in that: the lower pressure pneumatics
The quantity of machine (4) is several, and the interval between every two lower pressure air compressor machine (4) is 1,400 meters to 1,000
600 meters.
4. a kind of fluidization lime stone handling system according to claim 1, it is characterised in that: the limestone powder bin
(8) bottom offers feed inlet (7), and the inside of the feed inlet (7) and the end part seal of conduit (3) are set with.
5. a kind of fluidization lime stone handling system according to claim 1, it is characterised in that: the conduit (3) is divided into
Tubule and extra heavy pipe, two ports of the end of tubule respectively with storehouse pump (5) bottom are connected with each other, the end of extra heavy pipe and discharge port
(2) and the inside mutual sheathing of feed inlet (7), and the front of extra heavy pipe is mounted on control valve (11).
6. a kind of fluidization lime stone handling system according to claim 5, it is characterised in that: the control valve (11)
Input terminal and the output end of central processing unit (9) are electrically connected, the output end and gas flow rate induction end of the control valve (11)
(10) input terminal is electrically connected.
7. a kind of fluidization lime stone handling system according to claim 1, it is characterised in that: the lower pressure pneumatics
The air source of machine (4) is compressed air,
8. a kind of fluidization lime stone handling system according to claim 1, it is characterised in that: the control valve (11) can
PLC programmable control system is accessed, also can access other DCS control systems.
9. a kind of fluidization lime stone handling system according to claim 3, it is characterised in that: a lower pressure
Air compressor machine (4) is mounted on close at discharge port (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910434038.2A CN110217597B (en) | 2019-05-23 | 2019-05-23 | Fluidized limestone conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910434038.2A CN110217597B (en) | 2019-05-23 | 2019-05-23 | Fluidized limestone conveying system |
Publications (2)
| Publication Number | Publication Date |
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| CN110217597A true CN110217597A (en) | 2019-09-10 |
| CN110217597B CN110217597B (en) | 2021-08-03 |
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ID=67818224
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910434038.2A Active CN110217597B (en) | 2019-05-23 | 2019-05-23 | Fluidized limestone conveying system |
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| JP2018095338A (en) * | 2016-12-09 | 2018-06-21 | ダイヤモンドエンジニアリング株式会社 | Powder supply device |
| CN207608054U (en) * | 2017-11-27 | 2018-07-13 | 贵州鸭溪发电有限公司 | A kind of novel pneumatic ash conveying device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1686771A (en) * | 2005-04-21 | 2005-10-26 | 南京顺风气力输送系统有限公司 | Energy saving method of granular material pneumatic conveying system and its device |
| CN102009851A (en) * | 2009-09-08 | 2011-04-13 | 镇江市电站辅机厂 | Conveying method for bottom discharge bin pump |
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| JP2018095338A (en) * | 2016-12-09 | 2018-06-21 | ダイヤモンドエンジニアリング株式会社 | Powder supply device |
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| Publication number | Publication date |
|---|---|
| CN110217597B (en) | 2021-08-03 |
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Denomination of invention: A Fluid Fossil Limestone Transportation System Effective date of registration: 20230925 Granted publication date: 20210803 Pledgee: Zhejiang Longyou rural commercial bank Limited by Share Ltd. Pledgor: ZHEJIANG GUTE PNEUMATIC MACHINERY Co.,Ltd. Registration number: Y2023330002177 |
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