CN109464959A - A kind of feeding system and method further increasing chemical industry slurry consecutive production charge ratio precision - Google Patents
A kind of feeding system and method further increasing chemical industry slurry consecutive production charge ratio precision Download PDFInfo
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- CN109464959A CN109464959A CN201710802397.XA CN201710802397A CN109464959A CN 109464959 A CN109464959 A CN 109464959A CN 201710802397 A CN201710802397 A CN 201710802397A CN 109464959 A CN109464959 A CN 109464959A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/211—Measuring of the operational parameters
- B01F35/2111—Flow rate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/50—Mixing liquids with solids
- B01F23/51—Methods thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/50—Mixing liquids with solids
- B01F23/53—Mixing liquids with solids using driven stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
- B01F27/72—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices
- B01F27/721—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices with two or more helices in the same receptacle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/211—Measuring of the operational parameters
- B01F35/2117—Weight
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
- B01F35/881—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise by weighing, e.g. with automatic discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
- B01F35/883—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using flow rate controls for feeding the substances
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
Abstract
The present invention relates to a kind of feeding systems and method for further increasing chemical industry slurry consecutive production charge ratio precision, including control system, powder metering charging device, twin-screw compounder, liquid delivery pump and flowmeter, for powder metering charging device at least provided with two, each powder metering charging device is made of powder body feeding machine and Weighing module；Powder body feeding machine is connected to twin-screw compounder, liquid delivery pump is connected to by liquid conducting pipes with the liquid inlet of twin-screw compounder, flowmeter is mounted on liquid conducting pipes, and control system is used to monitor in real time in the powder body feeding machine that liquid feed flow that flowmeter is fed back to and real time monitoring Weighing module are fed back to powder weight of material and powder is calculated and feeds intake flow.The present invention is by the monitoring practical inventory of material, using one of material as object of reference, calculates and adjusts automatically unclassified stores inventory according to setting ingredient proportion, achieve the purpose that further increase finished product materials distributing precision.
Description
Technical field
The present invention relates to a kind of feeding system for further increasing chemical industry slurry consecutive production charge ratio precision and sides
Method.
Background technique
At present in the industry productions such as chemical industry, electric slurry, when consecutive production, material is all by a certain percentage will be corresponding
The material investment mixing apparatus of weight is produced, but when continuity feeds intake, can be because of material bridging, accumulation, inlet and outlet pressure
The factor of the variations such as temperature, causes to put into mass flow and there is certain fluctuation, causes investment material more, then practical material always than
Example error it is bigger, for some high requests industry production when, supplied materials investment proportion it is unstable, greatly reduce mixed material
Consistency.
In addition, enterprise is as follows by the way of and in place of Shortcomings at the aspect that feeds intake of powder at present: 1, using tradition
It is manual weigh after directly feed, workshop powder is flown upward, and bad environments are unfavorable to health of human body；2, some enterprises use current
Popular feeding system in the market, but generally require after filling feed bin, after measuring rated weight, stop feeding, Cai Nengkai
Beginning blanking, after bin blanking, it is necessary to feeding again again greatly reduces working efficiency in this way, if loading and unloading simultaneously,
Then Weighing module can not accurately read data, can not achieve and carry out continuous loading and unloading while accurate measurement, be unable to satisfy enterprise
Industry requirement.
Summary of the invention
The main technical problem to be solved in the present invention is: providing one kind and further increases the throwing of chemical industry slurry consecutive production
Expect the feeding system and method for distributing precision, the present invention is by the monitoring practical inventory of material, using one of material as reference
Object calculates and adjusts automatically unclassified stores inventory according to setting ingredient proportion, reaches and further increases finished product materials proportion essence
The purpose of degree.
The invention solves further technical problem be: make the loading and unloading process of powder can be realized automatic continuous control
System, and powder metering is accurate, improves the production efficiency and production quality of enterprise.
The technical solution for solving above-mentioned technical problem is: one kind further increasing chemical industry slurry consecutive production charge ratio
The feeding system of precision, including control system, powder metering charging device, twin-screw compounder, liquid delivery pump and for surveying
Quantity of fluid, which feeds intake, flow and feeds back information to the flowmeter of control system, the powder metering charging device at least provided with
Two, each powder metering charging device is by powder body feeding machine and for weighing weight in powder body feeding machine and feeding back information
It is constituted to the Weighing module of control system, Weighing module is mounted on powder body feeding machine；Powder is provided on twin-screw compounder
Entrance and liquid inlet, powder body feeding machine outlet are connected to the powder entrance of twin-screw compounder, and liquid delivery pump passes through liquid
Conveyance conduit is connected to the liquid inlet of twin-screw compounder, and flowmeter is mounted on liquid conducting pipes, the control system
It unites for monitoring the liquid feed flow that flowmeter is fed back to and the powder body feeding machine that real time monitoring Weighing module is fed back in real time
Interior powder weight of material is simultaneously calculated powder and feeds intake flow, powder body feeding machine, Weighing module, liquid delivery pump and flow score
It is not connect with control system.
A further technical solution of the present invention is: further including having powder storage device, commutator and feeding intake with powder metering
The identical vacuum feeder of device quantity, vacuum feeder are mounted on powder body feeding machine, vacuum feeder by commutator with
The connection of powder storage device, vacuum feeder and commutator are connect with control system respectively.
It is of the invention another solution is that a kind of chemical industry slurry consecutive production charge ratio precision that further increases
Feeding method, comprising the following steps:
(1) setting powder feeds intake the ratio value of flow and liquid feed flow in the controls；
(2) powder body feeding machine of control system control powder metering charging device is mixed to twin-screw simultaneously with liquid delivery pump
Machine constant flow, which feeds intake, carries out consecutive production；
(3) what the liquid feed flow and real time monitoring Weighing module that control system real time monitoring flowmeter is fed back to were fed back to
It powder weight of material and powder is calculated feeds intake flow in powder body feeding machine；
(4) control system feeds intake what flow was calculated with the ratio value of liquid feed flow and monitoring according to the powder of setting
The powder flow that feeds intake calculates liquid automatically and should throw uninterrupted, and controls liquid delivery pump revolving speed, so that the liquid of flowmeter feedback
Body feeds intake flow value further equal to or close to liquid feed flow rate calculation value.
The loading and unloading of powder metering charging device of the present invention use following methods, specifically includes the following steps:
(1) the specified upper doses of powder body feeding machine in each powder metering charging device is set in the controls；
(2) control system control commutator, which opens one of channel, makes powder storage device feed intake with one of powder metering
Material in powder storage device is added to powdered feed by vacuum feeder by device connection, the powder metering charging device
In machine, the upper doses in powder body feeding machine is weighed by Weighing module；On the upper doses of powder body feeding machine reaches specified
When doses, Weighing module feeds back information to control system, and control system controls commutator commutation and closes original channel, opens
Another channel is connected to storage device with another powder metering charging device, while control system control is equipped with specified material
Powder body feeding machine under expect in twin-screw compounder；
(3) material in powder storage device is added to powder by vacuum feeder and fed by another powder metering charging device
In material machine, when the upper doses of powder body feeding machine reaches specified upper doses, Weighing module feeds back information to control system, control
System controls commutator closing passage and stops feeding；The powder metering charging device that control system controls other non-feedings again carries out
Feeding；
(4) after being all added to twin-screw compounder equipped with the powder body feeding machine material of specified material, Weighing module is by information
Control system is fed back to, control system controls powder body feeding machine and stops blanking, and controls and fill in other powder metering charging devices
Expect in twin-screw compounder under the powder body feeding machine for having specified material；Control system control simultaneously is not charged with any powder of material
Body feeder feeding；So circulation loading and unloading.
Feeding speed in powder body feeding machine is greater than or equal to blanking velocity.
Due to the adoption of the above technical scheme, the invention has the following advantages:
1, the present invention is fed intake flow by monitoring in real time with control, reduces the mistake set between ingredient proportion and practical ingredient proportion
Difference improves charge ratio precision, realizes that charge ratio is more accurate.
2, when continuity feeds intake, various material ratio precision are further increased, reduction when feeding intake mass flow fluctuation at
The influence of product material promotes finished product materials consistency, promotes product matter.
3, the loading and unloading of powder material of the present invention have the advantages that efficient, high-precision, automation.Powder body feeding machine of the present invention
Constantly switch loading and unloading according to Weighing module, time interval is short, midway is uninterrupted, automatically continuously controls, accurately measures powder.
Weighing module is arranged in the present invention on powder body feeding machine, can accurate metering material weight, effectively prevent inaccurate because weighing
Really influence the homogeneity of product, it is ensured that product quality.
4, when loading and unloading of the present invention, material is in closed environment, not will cause dust pollution to use environment, is kept away
Exempt from injury of the dust to human body, improves operating environment.
Match in the following, one kind of the present invention is further increased chemical industry slurry consecutive production and fed intake in conjunction with the accompanying drawings and embodiments
It is further described than the feeding system of precision and the technical characteristic of method.
Detailed description of the invention
Fig. 1: a kind of feeding system for further increasing chemical industry slurry consecutive production charge ratio precision of the present invention
Structural schematic diagram.
Fig. 2: the powder metering charging device and vacuum feeder, commutator, powder storage device connection signal of the present invention
Figure.
Fig. 3: the control system of present invention schematic diagram in succession.
In figure: 1- powder body feeding machine, 2- Weighing module, 3- twin-screw compounder, 31- powder entrance, the liquid inlet 32-,
4- liquid delivery pump, 5- flowmeter, 6- liquid conducting pipes, 7- powder storage device, 8- commutator, 9- vacuum feeder.
Specific embodiment
Embodiment 1: a kind of feeding system further increasing chemical industry slurry consecutive production charge ratio precision, such as Fig. 1
It is shown, including control system, powder metering charging device, twin-screw compounder 3, liquid delivery pump 4 and for measure liquid throw
Stream amount and the flowmeter 5 for feeding back information to control system, there are two (powder meters for the powder metering charging device setting
Measure charging device I and powder metering charging device II), each powder metering charging device is by powder body feeding machine 1 and for claiming
Amount powder body feeding machine in weight and feed back information to control system Weighing module 2 constitute, Weighing module 2 be mounted on powder feed
On material machine；Powder entrance 31 and liquid inlet 32, the outlet of powder body feeding machine 1 and double-screw mixing are provided on twin-screw compounder 3
The powder entrance 31 of conjunction machine 3 is connected to, and liquid delivery pump 4 passes through the liquid inlet 32 of liquid conducting pipes 6 and twin-screw compounder 3
Connection, flowmeter 5 are mounted on liquid conducting pipes 6, and the control system is for monitoring the liquid that flowmeter 5 is fed back in real time
Body, which feeds intake, flow and to be monitored powder weight of material in the powder body feeding machine 1 that feeds back to of Weighing module 2 in real time and powder is calculated
Feed intake flow, and powder body feeding machine 1, Weighing module 2, liquid delivery pump 4 and flowmeter 5 are connect with control system respectively.
Embodiment 2: a kind of feeding system further increasing chemical industry slurry consecutive production charge ratio precision, it is basic
Structure is same as Example 1, and difference is: it further include having powder storage device 7, commutator 8 and two vacuum feeders 9,
Vacuum feeder is mounted on powder body feeding machine 1, and vacuum feeder 9 is connected to by commutator 8 with powder storage device 7, vacuum
Feeder 9 and commutator 8 are connect with control system (as shown in Figure 2 and Figure 3) respectively, and commutator is triplet commutation in the present embodiment
Device.
Embodiment 3: a kind of feeding method further increasing chemical industry slurry consecutive production charge ratio precision, using reality
Apply feeding system described in example 1, comprising the following steps:
(1) setting powder feeds intake the ratio value of flow and liquid feed flow in the controls；
(2) powder body feeding machine 1 of control system control powder metering charging device and liquid delivery pump 4 are simultaneously to double-screw mixing
3 constant flow of conjunction machine puts into powder material and liquid material carries out consecutive production；Two switchings of powder body feeding machine 1 feed intake, to protect
Demonstrate,prove the continuous dosing of powder material.
(3) the liquid feed flow and real time monitoring Weighing module 2 that control system real time monitoring flowmeter 5 is fed back to are anti-
It powder weight of material and powder is calculated feeds intake flow in the powder body feeding machine 1 being fed back to；
Powder feeds intake the calculation formula of flow are as follows: powder feeds intake flow=(M-Mt)/t, wherein M indicates that powder is fed when certain monitoring point
The weight of material, M in material machinetIndicate the weight of certain monitoring point material in powder body feeding machine after t seconds, t expression monitors powder twice
The time interval of weight of material in feeder.Such as: the weight of material is 100kg in powder body feeding machine when certain monitoring point, after 2 seconds
The weight of material is 90kg in powder body feeding machine, then powder feeds intake flow=(100-90)/2=5kg/s.
(4) control system feeds intake the ratio value of flow and liquid feed flow according to the powder of setting and monitoring calculates
To the powder flow that feeds intake calculate liquid automatically and should throw uninterrupted, and 4 revolving speed of liquid delivery pump is controlled, so that flowmeter 5 is anti-
The liquid feed flow value of feedback is further equal to or close to liquid feed flow rate calculation value.
Embodiment 4: a kind of feeding method further increasing chemical industry slurry consecutive production charge ratio precision, using reality
Apply feeding system described in example 2, basic step is same as Example 3, the loading and unloading of powder metering charging device use with
Lower method, specifically includes the following steps:
(1) the specified upper doses of powder body feeding machine 1 in each powder metering charging device is set in the controls.
(2) control system control commutator 8 opens that one of channel makes powder storage device 7 and powder metering feeds intake dress
I connection is set, which is added to powder for the material in powder storage device 7 by vacuum feeder 9 and feeds
In material machine 1, the upper doses in powder body feeding machine is weighed by Weighing module 2；When the upper doses of powder body feeding machine reaches volume
Surely when upper doses, Weighing module feeds back information to control system, and control system controls commutator commutation and closes original channel,
Opening another channel is connected to storage device with powder metering charging device II, while controlling powder metering charging device I
Expected in twin-screw compounder 3 under powder body feeding machine.
(3) material in powder storage device 7 is added to powder by vacuum feeder 9 by powder metering charging device II
In feeder, when the upper doses of powder body feeding machine reaches specified upper doses, Weighing module 2 feeds back information to control system,
Control system controls commutator closing passage and stops feeding.
(4) after 1 material of powder body feeding machine of powder metering charging device I is all added to twin-screw compounder 3, weighing
Module feeds back information to control system, and control system controls powder body feeding machine and stops blanking, and controls powder metering and feed intake dress
It sets and expects in twin-screw compounder under the powder body feeding machine in II equipped with specified material；Powder metering charging device I is controlled simultaneously
Powder body feeding machine feeding；So circulation loading and unloading.
Optimal loading and unloading speed is in embodiment 4, and the feeding speed in feeder is greater than or is equal to blanking velocity, this
At the end of sample can guarantee a powder body feeding machine blanking, the feeding work of another powder body feeding machine has been completed, and is being switched
When loading and unloading, time interval is most short.If being provided with multiple powder metering charging devices, as long as guaranteeing under a powder body feeding machine
At the end of material, other powder metering charging devices have the powder body feeding machine equipped with rated weight material can be with blanking.
In embodiment 4, control system controls the vacuum feeding connecting with the powder metering charging device for carrying out feeding work
Machine work, the vacuum feeder connecting with the powder metering charging device for not carrying out feeding work do not work.As a kind of transformation,
Control system can not also control the working condition of vacuum feeder, be constantly in vacuum feeder in working condition, only need
It controls reversal valve and is connected to the vacuum feeder of feeding is needed.
Claims (5)
1. a kind of feeding system for further increasing chemical industry slurry consecutive production charge ratio precision, it is characterised in that: including
Control system, powder metering charging device, twin-screw compounder (3), liquid delivery pump (4) and for measuring liquid feed flow
And the flowmeter (5) of control system is fed back information to, the powder metering charging device is at least provided with two, each powder
Body metering charging device is by powder body feeding machine (1) and for weighing weight in powder body feeding machine and feeding back information to control system
The Weighing module (2) of system is constituted, and Weighing module (2) is mounted on powder body feeding machine；Twin-screw compounder is provided with powder on (3)
Entrance (31) and liquid inlet (32), powder body feeding machine (1) outlet are connected to the powder entrance (31) of twin-screw compounder (3),
Liquid delivery pump (4) is connected to by liquid conducting pipes (6) with the liquid inlet (32) of twin-screw compounder (3), flowmeter (5)
It is mounted on liquid conducting pipes (6), the control system is for monitoring the liquid feed stream that flowmeter (5) is fed back in real time
It measures and monitors in real time the interior powder weight of material of powder body feeding machine (1) that Weighing module (2) are fed back to and powder is calculated and feed intake
Flow, powder body feeding machine (1), Weighing module (2), liquid delivery pump (4) and flowmeter (5) are connect with control system respectively.
It a kind of further increase feeding intake for chemical industry slurry consecutive production charge ratio precision 2. according to claim 1 and is
System, it is characterised in that: further include having powder storage device (7), commutator (8) and identical with powder metering charging device quantity
Vacuum feeder (9), vacuum feeder are mounted on powder body feeding machine (1), and vacuum feeder (9) passes through commutator (8) and powder
Body storage device (7) connection, vacuum feeder (9) and commutator (8) are connect with control system respectively.
3. a kind of feeding method for further increasing chemical industry slurry consecutive production charge ratio precision, it is characterised in that: including
Following steps:
(1) setting powder feeds intake the ratio value of flow and liquid feed flow in the controls；
(2) powder body feeding machine (1) of control system control powder metering charging device and liquid delivery pump (4) are simultaneously to double spiral shells
Bar mixing machine (3) constant flow, which feeds intake, carries out consecutive production；
(3) the liquid feed flow and real time monitoring Weighing module (2) that control system real time monitoring flowmeter (5) is fed back to are anti-
The interior powder weight of material of powder body feeding machine (1) that is fed back to simultaneously is calculated powder and feeds intake flow；
(4) control system feeds intake what flow was calculated with the ratio value of liquid feed flow and monitoring according to the powder of setting
The powder flow that feeds intake calculates liquid automatically and should throw uninterrupted, and controls liquid delivery pump (4) revolving speed, so that flowmeter (5) is anti-
The liquid feed flow value of feedback is further equal to or close to liquid feed flow rate calculation value.
4. a kind of side of feeding intake for further increasing chemical industry slurry consecutive production charge ratio precision as claimed in claim 3
Method, it is characterised in that: the loading and unloading of powder metering charging device use following methods, specifically includes the following steps:
(1) the specified upper doses of powder body feeding machine (1) in each powder metering charging device is set in the controls；
(2) one of channel is opened in control system control commutator (8) makes powder storage device (7) and one of powder meter
Charging device connection is measured, which is added the material in powder storage device (7) by vacuum feeder (9)
Enter in powder body feeding machine (1), the upper doses in powder body feeding machine is weighed by Weighing module (2)；Work as powder body feeding machine
Upper doses when reaching specified upper doses, Weighing module feeds back information to control system, and control system controls commutator commutation
Original channel is closed, opening another channel is connected to storage device with another powder metering charging device, controls simultaneously
System control, which is equipped under the powder body feeding machine of specified material, to be expected in twin-screw compounder (3)；
(3) material in powder storage device (7) is added to by another powder metering charging device by vacuum feeder (9)
In powder body feeding machine, when the upper doses of powder body feeding machine reaches specified upper doses, Weighing module (2) feeds back information to control
System, control system control commutator closing passage and stop feeding；The powder metering that control system controls other non-feedings again is thrown
Expect that device carries out feeding；
(4) after powder body feeding machine (1) material equipped with specified material is all added to twin-screw compounder (3), Weighing module
Feed back information to control system, control system controls powder body feeding machine and stops blanking, and controls other powder meterings and feed intake dress
It sets and expects in twin-screw compounder under the powder body feeding machine equipped with specified material；Control system control simultaneously is not charged with material
Any powder body feeding machine feeding；So circulation loading and unloading.
5. a kind of side of feeding intake for further increasing chemical industry slurry consecutive production charge ratio precision as claimed in claim 4
Method, it is characterised in that: the feeding speed in powder body feeding machine is greater than or equal to blanking velocity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710802397.XA CN109464959A (en) | 2017-09-07 | 2017-09-07 | A kind of feeding system and method further increasing chemical industry slurry consecutive production charge ratio precision |
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| CN201710802397.XA CN109464959A (en) | 2017-09-07 | 2017-09-07 | A kind of feeding system and method further increasing chemical industry slurry consecutive production charge ratio precision |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110743462A (en) * | 2019-09-25 | 2020-02-04 | 重庆大学 | Automatic proportioning system of boron carbide grinding fluid |
| CN112124973A (en) * | 2020-09-07 | 2020-12-25 | 新乡市高服机械股份有限公司 | Multipoint feeding system capable of realizing online screening and vacuum conveying |
| CN113322747A (en) * | 2021-05-11 | 2021-08-31 | 扬州大学 | Multifunctional single-compound particle-doped lignin and basalt fiber batch feeder and use method thereof |
| CN116440807A (en) * | 2023-05-08 | 2023-07-18 | 巴斯夫一体化基地(广东)有限公司 | Method and device for adding chemical production raw materials and chemical production system |
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| CN110743462A (en) * | 2019-09-25 | 2020-02-04 | 重庆大学 | Automatic proportioning system of boron carbide grinding fluid |
| CN112124973A (en) * | 2020-09-07 | 2020-12-25 | 新乡市高服机械股份有限公司 | Multipoint feeding system capable of realizing online screening and vacuum conveying |
| CN113322747A (en) * | 2021-05-11 | 2021-08-31 | 扬州大学 | Multifunctional single-compound particle-doped lignin and basalt fiber batch feeder and use method thereof |
| CN116440807A (en) * | 2023-05-08 | 2023-07-18 | 巴斯夫一体化基地(广东)有限公司 | Method and device for adding chemical production raw materials and chemical production system |
| CN116440807B (en) * | 2023-05-08 | 2023-10-10 | 巴斯夫一体化基地(广东)有限公司 | Method and device for adding chemical production raw materials and chemical production system |
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