CN105067062B - A kind of composite fertilizer's anti-caking oil accurate metering system and method - Google Patents
A kind of composite fertilizer's anti-caking oil accurate metering system and method Download PDFInfo
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- CN105067062B CN105067062B CN201510416797.8A CN201510416797A CN105067062B CN 105067062 B CN105067062 B CN 105067062B CN 201510416797 A CN201510416797 A CN 201510416797A CN 105067062 B CN105067062 B CN 105067062B
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- oil
- caking
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Abstract
A kind of composite fertilizer's anti-caking oil accurate metering system and method, it includes vertical centrifugal type oil feed pump, core batch box, centrifugal injection pump and instrument control device；The vertical centrifugal type oil feed pump, core batch box and centrifugal injection pump are connected with instrument control device respectively；The vertical centrifugal type oil feed pump and centrifugal injection pump are connected with core batch box respectively.The instrument control device receives the flange form pressure transmitter detection oil level and obtains oil level variable signal；The instrument control device calculates oil spout instantaneous delivery in real time by oil level variable signal, controls oil spout revolution speed：Beneficial effects of the present invention：Metering reliability and precision is set all to increase substantially, simple in construction as a result of centrifugal pump, fault rate is low, reliable.When instantaneous delivery is beyond the scope of setting, oil circuit and equipment is when breaking down, timely alarm.It can accurately be matched according to composite fertilizer's yield, both reduce cost, improve anti-caking effect again.
Description
Technical field
The present invention relates to metering field, more specifically to a kind of composite fertilizer's anti-caking oil accurate metering system and method.
Background technology
In nitrogen-phosphorus-potassium compound fertilizer production, finished product prevents that caking from being critically important process.Need according to the instantaneous of finished product composite fertilizer
Flow, anti-caking oil is sprayed into proportion.Anti-caking oil needs to be heated up to more than 60 DEG C to dissolve at room temperature into solid-state in adition process
Liquid, it is sprayed onto after being pressurizeed with oil pump on composite fertilizer's finished particle.Currently, nitrogen-phosphorus-potassium compound fertilizer anti-caking oil dosage typically 0.8 ~
Between 2Kg/t, depending on the how much instantaneous distributive value of composite fertilizer's yield between 10 ~ 40Kg/h.Because oil spout instantaneous delivery is small, choosing is common
During the flowmeters such as small latus rectum turbine, because oil contains impurity, often occur blocking flowmeter situation, actual use situation is paid no attention to
Think.It is difficult to accurately measure.Also have using Weighing mode, but because tank body connects heating tube and spray bar, weight can not be accurate
Really measurement, distributive value is smaller in addition, and it is too small that reduction weight per minute accounts for gross weight ratio, also adds difficulty to accurate metering.
Using more piston-type measurement pump mode, because impurity is more, often there is reversing ball blocking case, or reversing ball occur close
Oil leak at envelope, it will result in metering pump-metered and forbidden situation, and human eye is difficult to find in time.This mode can not show numeral again
Actual instantaneous delivery, cause composite fertilizer's finished product preventing blocking effect undesirable.
The content of the invention
The technical problem to be solved by the invention is to provide a kind of composite fertilizer's anti-caking oil accurate metering system and method, uses
It is difficult to accurate metering and numerical monitor to solve existing various metering methods, measuring pump transmission portion is more, fault rate is high asks
Topic；Using the metering device of the present invention, distributive value accurately can be shown and controlled, the reliability of metering is increased substantially, uses instead
Centrifugal pump structure is simple, and fault rate is low.When instantaneous delivery is beyond the scope of setting, oil circuit and equipment is when breaking down, and Times
Alert prompting.The present invention overcomes existing equipment defect completely.
The present invention solves above-mentioned technical problem, there is provided the technical scheme solved as follows：A kind of composite fertilizer's anti-caking olein is really counted
Amount system, it includes vertical centrifugal type oil feed pump, core batch box, centrifugal injection pump and instrument control device；
The vertical centrifugal type oil feed pump, for the core batch box intermittently fuel feeding；
The core batch box, for measuring and containing anti-caking oil, it includes staving, is arranged at staving bottom, for adding
The sleeve heater of hot anti-caking oil, it is arranged on the sleeve heater and controls the flange form pressure of oil level to become for measuring
Send device；
The centrifugal injection pump, for the anti-caking oil in the core batch box to be sprayed onto into compound fertilizer granules；
The instrument control device, for measure control；
The vertical centrifugal type oil feed pump, core batch box and centrifugal injection pump electrically connect with instrument control device respectively
Connect；The vertical centrifugal type oil feed pump and centrifugal injection pump are connected with core batch box respectively.
In composite fertilizer's anti-caking oil accurate metering system of the present invention, the core batch box uses slender type batch box,
When being easy to anti-caking oil distributive value smaller, the change of oil mass liquid level is more apparent.
In composite fertilizer's anti-caking oil accurate metering system of the present invention, described its measuring surface of flange form pressure transmitter is with being situated between
Matter contact area is big, prevents well cuts from blocking between measurement oil circuit, with staving and sets distance to avoid distance in 60mm or so
It is long, cause anti-caking oil crystallization.
In composite fertilizer's anti-caking oil accurate metering system of the present invention, instrument control device also includes touch display screen, uses
In display composite fertilizer's finished product instantaneous flow and anti-caking oil instantaneous flow and manually set distributive value, oil spout ratio.
In composite fertilizer's anti-caking oil accurate metering system of the present invention, the vertical centrifugal type oil feed pump using can between knock off
The vertical centrifugal type oil feed pump of work.
The present invention also provides a kind of true metering method of composite fertilizer's anti-caking olein, and this method comprises the following steps：
S1, the instrument control device receive the flange form pressure transmitter detection oil level and obtain oil level variable signal；
S2, the instrument control device are by judging that the oil level that the pressure transmitter gathers in the per unit time changes
Signal accurately calculate oil spout instantaneous delivery and composite fertilizer finished product instantaneous flow rate signal by being multiplied by given ratio value compared with, control
The rotating speed of the centrifugal injection pump is made, anti-caking oil is sprayed onto on composite fertilizer's finished particle；.
S3, the instrument control device are by oil level variable signal, and reed time controll vertical centrifugal type oil feed pump is to the core
Scheming measuring tank is interrupted fuel feeding；In Fuel injection system：Injection pump is pressed constant close to rotation speed operation during lower limit level always.
In composite fertilizer's anti-caking oil accurate metering system of the present invention, according to oil level variable signal described in the step S2
The instantaneous delivery accurately calculated and composite fertilizer finished product instantaneous flow rate signal by being multiplied by given ratio value compared with, calculating is gone on business
Value is so as to further correct the rotating speed of centrifugal injection pump.
Implement the composite fertilizer's anti-caking oil accurate metering system and method for the present invention, have the advantages that：Due to using
Flange form pressure transmitter measurement oil level changes, and piezometric surface area will not block greatly, and batch box is elongated, and to meet distributive value smaller
When, oil level change significantly facilitates accurate measurement, metering reliability and precision is all increased substantially, as a result of centrifugal pump,
Simple in construction, fault rate is low, reliable.When instantaneous delivery is beyond the scope of setting, oil circuit and equipment is when breaking down, in time
Alarm.It can accurately be matched according to composite fertilizer's yield, both reduce cost, improve anti-caking effect again.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is composite fertilizer's anti-caking oil accurate metering system of the present invention and the structural representation of method；
1st, oil tank is melted, 2, oil feed pump, 3, oil pipe, 4, core batch box, 5, centrifugal injection pump, 6, instrument control dress
Put, 41, staving, 42, flange form pressure transmitter, 43, sleeve heater, 51, the oil level upper limit, 52, oil level lower limit.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
As shown in figure 1, the structural representation of the composite fertilizer's anti-caking oil accurate metering system and method for the present invention；One kind is multiple
Hefei anti-caking oil accurate metering system, it includes vertical centrifugal type oil feed pump, core batch box, centrifugal injection pump and instrument control
Device processed；
The vertical centrifugal type oil feed pump, for the core batch box intermittently fuel feeding；
The core batch box, for measuring and containing anti-caking oil, it includes staving, is arranged at staving bottom, for adding
The sleeve heater of hot anti-caking oil, it is arranged on the sleeve heater and controls the flange form pressure of oil level to become for measuring
Send device；
The centrifugal injection pump, for the anti-caking oil in the core batch box to be sprayed onto into compound fertilizer granules；
The instrument control device, for measure control；
The vertical centrifugal type oil feed pump, core batch box and centrifugal injection pump electrically connect with instrument control device respectively
Connect；The vertical centrifugal type oil feed pump and centrifugal injection pump are connected with core batch box respectively.
In composite fertilizer's anti-caking oil accurate metering system of the present invention, the core batch box uses slender type batch box,
When being easy to anti-caking oil oil mass smaller, the change of oil mass liquid level is more apparent.
In composite fertilizer's anti-caking oil accurate metering system of the present invention, the flange form pressure transmitter accurately calculates spray
Set distance to avoid distance in 60mm or so between oily instantaneous delivery and staving, cause anti-caking oil crystallization.
In composite fertilizer's anti-caking oil accurate metering system of the present invention, instrument control device also includes touch display screen, uses
In display composite fertilizer's finished product instantaneous flow and anti-caking oil instantaneous flow and manually set distributive value, oil spout ratio.
In composite fertilizer's anti-caking oil accurate metering system of the present invention, the vertical centrifugal type oil feed pump using can between knock off
The vertical centrifugal type oil feed pump of work.
The present invention also provides a kind of true metering method of composite fertilizer's anti-caking olein, and this method comprises the following steps：
S1, the instrument control device receive the flange form pressure transmitter detection oil level and obtain oil level variable signal；
S2, the instrument control device are by judging that the oil level that the pressure transmitter gathers in the per unit time changes
Signal accurately calculate oil spout instantaneous delivery and composite fertilizer finished product instantaneous flow rate signal by being multiplied by given ratio value compared with, control
The rotating speed of the centrifugal injection pump is made, anti-caking oil is sprayed onto on composite fertilizer's finished particle.
S3, the instrument control device are by oil level variable signal, and reed time controll vertical centrifugal type oil feed pump is to the core
Scheming measuring tank is interrupted fuel feeding；In Fuel injection system：Injection pump is pressed constant close to rotation speed operation during lower limit level always；
In composite fertilizer's anti-caking oil accurate metering system of the present invention, according to oil level variable signal described in the step S2
The instantaneous delivery accurately calculated and composite fertilizer finished product instantaneous flow rate signal by being multiplied by given ratio value compared with, calculating is gone on business
Value is so as to further correct the rotating speed of centrifugal injection pump.
The operation principle of the present invention：After instrument control device electrifying startup, instrument control device passes through flange form pressure first
Power transmitter detects oil level, after oil is added to measurement bucket set upper limit oil level by startup interval vertical centrifugal type oil feed pump, stops supplying
Oil.A baseband signal is set to be exported by instrument control device according to composite fertilizer's instantaneous flow, control frequency converter regulation oil spout revolution speed,
Anti-caking oil is sprayed onto on composite fertilizer's finished particle, bucket oil level is now measured and is constantly declining, according to the diameter of measurement bucket, by conventional
Amount consumes 35kg and calculated per hour, and oil level per minute declines 39mm.This fall pressure transmitter is easy to measurement,
Pressure of measurement per minute is controlled by instrument control device（That is oil level）, last time measurement oil level subtract this measurement oil level,
Instantaneous delivery per hour is converted into automatically with instrument control device program, is directly come out with numerical monitor, and feed back to and control back
It is multiplied by given ratio value with composite fertilizer's instantaneous flow in road and compares, difference passes through instrument control device loop, further amendment centrifugation
Formula oil spout revolution speed, reach the distributive value of requirement, when batch box oil level drops to regulation lower limit, instrument control device stops meter
Instantaneous delivery is calculated, centrifugal oil spout revolution speed is always maintained at that existing rotating speed is constant, and vertical centrifugal type fuel feeding pump startup starts to meter
Measuring tank fuel feeding, the fuel cut-off when reaching set upper limit.Oil spout instantaneous flow restarts to calculate, and restarts instrument control device control
System.This process is gone round and begun again.The system is additionally added perfect alarm, when fuel feeding pump operation time-out, oil spout instantaneous flow exceed
The alarms such as scope, oil pump damage, it ensure that system breaks down and prompt operator in time.
Compared with prior art, implement the composite fertilizer's anti-caking oil accurate metering system and method for the present invention, have with following
Beneficial effect：Due to being changed using flange form pressure transmitter measurement oil level, piezometric surface area will not block greatly, and batch box is elongated full
When foot distributive value is smaller, oil level change significantly facilitates accurate measurement, metering reliability and the precision is all increased substantially, due to
Centrifugal pump is employed, simple in construction, fault rate is low, reliable.When instantaneous delivery is beyond the scope of setting, oil circuit and equipment goes out
During existing failure, timely alarm.It can accurately be matched according to composite fertilizer's yield, both reduce cost, improve anti-caking effect again
Fruit.
Embodiment described above only expresses embodiments of the present invention, and its description is more specific and detailed, but can not
Therefore it is interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection model of the present invention
Enclose.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (8)
1. a kind of composite fertilizer's anti-caking oil accurate metering system, it is characterised in that measured including vertical centrifugal type oil feed pump, core
Bucket, centrifugal injection pump and instrument control device；
The vertical centrifugal type oil feed pump, for the core batch box intermittently fuel feeding；
The core batch box, for measuring and containing anti-caking oil, it includes staving, is arranged at staving bottom, anti-for heating
The flange form pressure inverting for tie the sleeve heater of oil, being arranged on the sleeve heater and oil level is controlled for measuring
Device；
The centrifugal injection pump, for the anti-caking oil in the core batch box to be sprayed onto into compound fertilizer granules；
The instrument control device, controlled for metering device；
The vertical centrifugal type oil feed pump, core batch box and centrifugal injection pump are electrically connected with instrument control device respectively；
The vertical centrifugal type oil feed pump and centrifugal injection pump are connected with core batch box respectively.
2. composite fertilizer's anti-caking oil accurate metering system according to claim 1, it is characterised in that the core batch box is adopted
With slender type batch box, when being easy to anti-caking oil oil mass smaller, the change of oil mass liquid level is more apparent.
3. composite fertilizer's anti-caking oil accurate metering system according to claim 1, it is characterised in that the flange form pressure becomes
Device is sent, its measuring surface and medium contact area are big, prevent well cuts from blocking between measurement oil circuit, with staving and set distance to exist
60mm or so, distance is avoided, cause anti-caking oil crystallization.
4. composite fertilizer's anti-caking oil accurate metering system according to claim 1, it is characterised in that instrument control device also wraps
Touch display screen is included, for showing composite fertilizer's finished product instantaneous flow and anti-caking oil instantaneous flow and manually setting distributive value, oil spout ratio.
5. composite fertilizer's anti-caking oil accurate metering system according to claim 1, it is characterised in that the vertical centrifugal type supplies
Oil pump uses can the centrifugal vertical centrifugal type oil feed pump of discontinuous operation.
6. a kind of true metering method of composite fertilizer's anti-caking olein, it is characterised in that this method comprises the following steps：
S1, instrument control device receive flange form pressure transmitter detection oil level and obtain oil level variable signal；
S2, the instrument control device are by judging the pressure transmitter gathers in the per unit time oil level variable signal
Accurately calculate oil spout instantaneous delivery and composite fertilizer finished product instantaneous flow rate signal by being multiplied by given ratio value compared with, control from
The rotating speed of core type injection pump, anti-caking oil is sprayed onto on composite fertilizer's finished particle；
S3, the instrument control device are by oil level variable signal, and reed time controll vertical centrifugal type oil feed pump is to core batch box
It is interrupted fuel feeding；In Fuel injection system：Injection pump is pressed constant close to rotation speed operation during lower limit level always.
7. the true metering method of composite fertilizer's anti-caking olein according to claim 6, it is characterised in that basis described in step S2
The instantaneous delivery that oil level variable signal accurately calculates is with composite fertilizer's finished product instantaneous flow rate signal by being multiplied by given ratio value phase
Compare, calculate difference so as to further correct the rotating speed of centrifugal injection pump.
8. the true metering method of composite fertilizer's anti-caking olein according to claim 6, it is characterised in that：Instantaneous delivery is beyond setting
Scope when, oil circuit and equipment is when breaking down, timely alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510416797.8A CN105067062B (en) | 2015-07-16 | 2015-07-16 | A kind of composite fertilizer's anti-caking oil accurate metering system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510416797.8A CN105067062B (en) | 2015-07-16 | 2015-07-16 | A kind of composite fertilizer's anti-caking oil accurate metering system and method |
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| Publication Number | Publication Date |
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| CN105067062A CN105067062A (en) | 2015-11-18 |
| CN105067062B true CN105067062B (en) | 2017-12-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000035573A1 (en) * | 1998-12-15 | 2000-06-22 | Advanced Technology Materials, Inc. | Apparatus and method for point-of-use treatment of effluent gas streams |
| CN2905783Y (en) * | 2005-12-09 | 2007-05-30 | 广东福利龙复合肥有限公司 | Envelope device for producing compound mixing fertilizer |
| CN201883048U (en) * | 2011-02-28 | 2011-06-29 | 辽宁津大肥业有限公司 | Compound fertilizer anti-caking oil spraying system |
| CN202730025U (en) * | 2012-07-27 | 2013-02-13 | 山东省平度市滑石矿业有限公司 | Compound fertilizer anti-blocking spray head |
| CN103539519A (en) * | 2013-09-26 | 2014-01-29 | 北京富瑞雪科技发展有限公司 | Automatic adding system for anti-blocking agent for compound fertilizer |
| CN104557342A (en) * | 2015-02-04 | 2015-04-29 | 安徽帝元生物科技有限公司 | Preparation method of retention urea |
-
2015
- 2015-07-16 CN CN201510416797.8A patent/CN105067062B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000035573A1 (en) * | 1998-12-15 | 2000-06-22 | Advanced Technology Materials, Inc. | Apparatus and method for point-of-use treatment of effluent gas streams |
| CN2905783Y (en) * | 2005-12-09 | 2007-05-30 | 广东福利龙复合肥有限公司 | Envelope device for producing compound mixing fertilizer |
| CN201883048U (en) * | 2011-02-28 | 2011-06-29 | 辽宁津大肥业有限公司 | Compound fertilizer anti-caking oil spraying system |
| CN202730025U (en) * | 2012-07-27 | 2013-02-13 | 山东省平度市滑石矿业有限公司 | Compound fertilizer anti-blocking spray head |
| CN103539519A (en) * | 2013-09-26 | 2014-01-29 | 北京富瑞雪科技发展有限公司 | Automatic adding system for anti-blocking agent for compound fertilizer |
| CN104557342A (en) * | 2015-02-04 | 2015-04-29 | 安徽帝元生物科技有限公司 | Preparation method of retention urea |
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| CN105067062A (en) | 2015-11-18 |
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Granted publication date: 20171212 Termination date: 20210716 |