CN114225787A - Suspension fertilizer preparation device and preparation method - Google Patents

Suspension fertilizer preparation device and preparation method Download PDF

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Publication number
CN114225787A
CN114225787A CN202111557774.0A CN202111557774A CN114225787A CN 114225787 A CN114225787 A CN 114225787A CN 202111557774 A CN202111557774 A CN 202111557774A CN 114225787 A CN114225787 A CN 114225787A
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control unit
central control
stirring
preset
suspended fertilizer
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CN114225787B (en
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王军
范艾国
王雷
贺民军
张蕊
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Dongguan Techsol Fertilizer Technology Co ltd
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Dongguan Techsol Fertilizer Technology Co ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
    • Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures

Abstract

The invention relates to a suspended fertilizer preparation device and a preparation method, comprising a stirring bin, a stirring device and a stirring device, wherein the stirring bin comprises a first power device for controlling the stirring of the stirring device and a second power device for controlling the oscillation of the stirring device; the foam recovery device is connected with the stirring bin and is used for recovering foam generated in the preparation process of the suspended fertilizer; suspension fertilizer relative viscosity detection device, it is connected with the stirring storehouse, and suspension fertilizer relative viscosity detection device includes personally submits the pipeline of certain angle, the detection bucket that is connected with the pipeline and is used for detecting the second detection device that detects suspension fertilizer weight in the detection bucket and the third detection device that is used for detecting suspension fertilizer viscosity with the horizontal plane. The invention adjusts the injection amount of the suspension mixture, the stirring speed and the vibrating frequency of the stirring device by arranging the central control unit so as to lead the suspended fertilizer to accord with the preset standard.

Description

Suspension fertilizer preparation device and preparation method
Technical Field
The invention relates to the field of suspended fertilizer preparation, in particular to a suspended fertilizer preparation device and a preparation method.
Background
The fertilizer can only be absorbed when it reaches the surface of the root system. Usually, the nutrients reach the surface of the root system mainly through two processes of mass flow and diffusion. In order to greatly improve the nutrient content of the liquid fertilizer, fully utilize various fertilizer raw materials, reduce the transportation cost and increase the transportation distance, the suspended fertilizer is used as a later-stage product of the liquid fertilizer, and the high-concentration characteristic of the suspended fertilizer solves the problem of low nutrient content of the original fertilizer. The total nutrient content of the suspension liquid fertilizer can reach 35-45 percent and even higher, and can be the same as the nutrient content of the common granular compound fertilizer, so that the transportation cost of the liquid fertilizer with the same amount of nutrients is greatly reduced, and the long-distance transportation of the liquid fertilizer becomes possible.
The nutrient content of the suspended fertilizer can be more than 40%, and other nutrient elements are added according to actual conditions, and the total content is generally not more than 5%. The suspension is typically adjusted to be slightly acidic, with a viscosity in the range of 700 to 900 centipoise and a particle average diameter of less than 5 microns. The crystal is not crystallized at the temperature of above-5 ℃, the layer separation is not generated after the mixture is placed for 10 days, and the layer separation is not more than 4 cm within 3 months. After layering, stirring to restore the uniform suspension state. Mixing with water in any proportion to obtain a uniform state. The suspended fertilizer suspends the tiny particles of various nutrient elements in the saturated solution of the fertilizer by virtue of the action of the suspending agent. The particles of nutrients or other active ingredients are not in solution. The components are uniformly distributed in the gel body, and sedimentation and layering are avoided. At present, the suspended fertilizer is mostly prepared by simple stirring, the quality of the suspended fertilizer cannot be judged according to the viscosity and the fluidity of the suspended fertilizer, the produced suspended fertilizer is easy to delaminate and agglomerate, and the effect of applying the suspended fertilizer to soil is poor.
Disclosure of Invention
Therefore, the invention provides a preparation device and a preparation method of a suspended fertilizer, which can solve the problem that qualified suspended fertilizer cannot be produced according to the relative viscosity of the suspended fertilizer.
In order to achieve the above object, the present invention provides a suspension fertilizer formula and a preparation method thereof, comprising:
the stirring bin comprises a first power device for controlling the stirring of the stirring device and a second power device for controlling the oscillation of the stirring device;
the foam recovery device is connected with the stirring bin and used for recovering foam generated in the preparation process of the suspended fertilizer, and the foam recovery device comprises an air exhaust device arranged at an air outlet of the stirring bin and a first detection device used for detecting the weight of the generated foam;
the suspension fertilizer relative viscosity detection device is connected with the stirring bin and comprises a pipeline forming a certain angle with the horizontal plane, a detection barrel connected with the pipeline, a second detection device used for detecting the weight of the suspension fertilizer in the detection barrel and a third detection device used for detecting the viscosity of the suspension fertilizer;
the central control unit is connected with the first power device, the second power device, the foam recovery device and the suspension fertilizer relative viscosity detection device in the stirring bin, the central control unit obtains the weight of foam generated in the stirring bin within a preset time through the first detection device, and the central control unit compares the weight of the foam with a preset value to adjust the stirring speed of the stirring device;
the central control unit obtains the current relative viscosity of the suspended fertilizer according to the current flow rate of the suspended fertilizer and the current viscosity of the suspended fertilizer, and when the relative viscosity of the suspended fertilizer obtained by the central control unit does not meet the preset standard, the central control unit adjusts the feeding amount of the first feeding hole according to the real-time flow rate of the suspended fertilizer and the viscosity of the suspended fertilizer, and simultaneously controls the power parameters of the first power device to adjust the stirring rate and controls the power parameters of the second power device to adjust the oscillation frequency; when the relative viscosity of the suspended fertilizer obtained by the central control unit meets the preset standard, the central control unit does not adjust the feeding amount of the first feeding hole, the stirring speed of the stirring device and the oscillation frequency.
Further, the central control unit sets the relative viscosity to be P, sets P = L/L0 XN/N0, wherein L is the flow rate of the suspended fertilizer, LO is the standard value of the flow rate of the suspended fertilizer, N is the viscosity of the suspended fertilizer, N0 is the standard value of the viscosity of the suspended fertilizer, sets L = M/M, wherein M is the total weight of the current suspended fertilizer, and M is the weight of the suspended fertilizer in the detection barrel, compares the obtained current relative viscosity P' of the suspended fertilizer with a preset relative viscosity standard parameter W, and judges whether the current relative viscosity of the suspended fertilizer meets a preset standard or not, wherein,
when P' is less than or equal to W1, the central control unit judges that the current suspended fertilizer does not meet the preset standard, and the central control unit adjusts the feeding amount of the first feeding hole and adjusts the stirring speed and the vibrating frequency of the stirring device;
when W1 is more than P' < W2, the central control unit judges that the current suspended fertilizer meets the preset standard, and the central control unit opens the first discharge port electromagnetic valve to produce the qualified suspended fertilizer;
when P' is not less than W2, the central control unit judges that the current suspended fertilizer does not meet the preset standard, and the central control unit adjusts the feeding amount of the first feeding hole and adjusts the stirring speed and the vibrating frequency of the stirring device;
the central control unit presets a standard parameter W of relative viscosity, and sets a first standard parameter W1 of relative viscosity and a second standard parameter W2 of relative viscosity.
Further, when the relative viscosity of the current suspended fertilizer obtained by the central control unit is less than or equal to a first preset relative viscosity standard parameter, the central control unit obtains the viscosity N 'of the current suspended fertilizer and compares the viscosity N' with the preset viscosity N of the suspended fertilizer, and adjusts the feeding amount of the first feeding hole, wherein,
when N 'is less than or equal to N1, the central control unit increases the feeding amount of the first feeding port M1 and adjusts the feeding amount to M11, and sets M11= M1 x (1+ (N1-N')/N1);
when N1 is more than L' < N2, the central control unit judges that the viscosity of the current suspended fertilizer meets the preset standard;
when N ' ≧ N2, the central control unit decreases the first throat feed amount M1 and adjusts to M12, setting M12= M1 × (1- (N ' -N2)/N2) × (P1-P ')/P1);
the central control unit presets suspended fertilizer viscosity N, sets first preset suspended fertilizer viscosity N1 and second preset suspended fertilizer viscosity N2.
Further, the central control unit presets a stirring speed VO and an oscillation frequency P0, when the relative viscosity of the current suspended fertilizer obtained by the central control unit is less than or equal to a first preset relative viscosity standard parameter, the central control unit obtains a current suspended fertilizer flow rate L 'and compares the current suspended fertilizer flow rate L' with a preset suspended fertilizer flow rate L, and adjusts the stirring speed and the oscillation frequency of the stirring device, wherein,
when L ' ≦ L1, the central control unit increases the stirring device stirring rate V0 to V1, setting V1= V0 × (1+ (L1-L ')/L1), while increasing the stirring device vibration frequency PO to P1, setting P1= P0 × (1+ (L1-L ')/L1);
when L1 is more than L' < L2, the central control unit does not adjust the stirring speed and the vibration frequency of the stirring device;
when L ' ≧ L2, the central control unit reduces the stirring device stirring rate V0 to V2, sets V2= V0 × (1- (L ' -L2)/L2 × (P1-P ')/P1), and simultaneously reduces the stirring device vibration frequency PO to P2, sets P2= P0 × (1-L ' -L2)/L2 × (P1-P ')/P1);
the central control unit presets a current suspended fertilizer flow rate L, wherein the current suspended fertilizer flow rate L is a first preset current suspended fertilizer flow rate L1, and the current suspended fertilizer flow rate L2 is a second preset current suspended fertilizer flow rate L2.
Further, when the relative viscosity of the current suspended fertilizer obtained by the central control unit is greater than or equal to a second preset relative viscosity standard parameter, the central control unit obtains the viscosity N 'of the current suspended fertilizer and compares the viscosity N' with the preset viscosity N of the suspended fertilizer, and adjusts the feeding amount of the first feeding hole, wherein,
when N ' ≦ N1, the control unit increased the first feedwell feed rate M1 adjusted to M13, setting M13= M1 × (1+ (N1-N ')/N1 × (P ' -P2)/P2));
when N1 is more than L' < N2, the feeding amount of the first feeding hole is not adjusted by the central control unit;
when N '≧ N2, the central control unit reduced the first throat feed amount M1 adjusted to M14, setting M14= M1 × (1- (N' -N2)/N2).
Further, the central control unit presets a stirring speed VO and an oscillation frequency P0, when the relative viscosity of the current suspended fertilizer obtained by the central control unit is greater than or equal to a second preset relative viscosity standard parameter, the central control unit obtains a current suspended fertilizer flow rate L' which is compared with a preset suspended fertilizer flow rate L, and adjusts the stirring speed and the oscillation frequency of the stirring device, wherein,
when L ' ≦ L1, the central control unit increases the stirring device stirring rate V0 to V3, setting V3= V0 × (1+ (L1-L ')/L1 × (P ' -P2)/P2)), while increasing the stirring device vibration frequency PO to P3, setting P3= P0 × (1+ (L1-L ')/L1 × (P ' -P2)/P2));
when L1 is more than L' < L2, the central control unit does not adjust the stirring speed and the vibration frequency of the stirring device;
when L ' ≧ L2, the central control unit reduces the stirring device stirring rate V0 to V4, sets V4= V0 × (1- (L ' -L2)/L2), simultaneously reduces the stirring device vibration frequency PO to P4, sets P4= P0 × (1- (L ' -L2)/L2).
Further, the central control unit presets the first power device power parameter F10, and adjusts the first power device power parameter according to the comparison between the obtained stirring speed Vj of the stirring device and the preset stirring speed V0, wherein,
when Vj is larger than or equal to V0, the central control unit increases the first power device power parameter F10 to F11, and sets F11= F10 x (1+ (Vj-V0)/V0);
when Vj < V0, the central control unit reduces the first power-plant power parameter F10 to F12, setting F12= F10 × (1- (V0-Vj)/V0);
the central control unit presets the second power device power parameter F20, and adjusts the second power device power parameter according to the comparison between the acquired oscillation frequency Pr of the stirring device and the preset oscillation frequency P0, wherein,
when Pr is larger than or equal to P0, the central control unit increases the second power device power parameter F20 to F21, and sets F21= F20 x (1+ (Pr-P0)/P0);
when Pr < P0, the central control unit reduces the second power plant power parameter F20 to F22, setting F22= F20 × (1- (P0-Pr)/P0);
wherein r =1,2,3,4, j =1,2,3, 4.
Further, in the step S2, the central control unit obtains a preset detection time t1 through the first detection device, compares the foam amount D in the foam recovery device with a preset foam amount E, selects a stirring speed adjusting parameter of the stirring device, and further obtains a stirring speed, where Vi' = Vi × VJi, and sets D = D1-D2, where D1 is the foam amount at the initial time of detection, D2 is the foam amount in the foam recovery device after the preset detection time t1, where,
when D is less than or equal to E1, the central control unit selects a first preset stirring speed adjusting parameter VJ1 as a stirring speed adjusting parameter;
when the E1 is more than D and less than E2, the central control unit selects a second preset stirring speed adjusting parameter VJ2 as a stirring speed adjusting parameter;
when D is larger than E2, the central control unit selects a third preset stirring speed adjusting parameter VJ3 as a stirring speed adjusting parameter;
the central control unit presets a foam quantity E, sets a first preset foam quantity E1 and a second preset foam quantity E2, presets a stirring speed adjusting parameter VJ, sets a first preset stirring speed adjusting parameter VJ1, a second preset stirring speed adjusting parameter VJ2 and a third preset stirring speed adjusting parameter VJ 3.
Further, the central control unit obtains the real-time temperature K of the suspended fertilizer through a temperature detector arranged in the stirring bin, compares the real-time temperature with a preset temperature standard value K0, and adjusts the selected stirring speed adjusting parameter, wherein,
when K is more than or equal to K0, the central control unit adjusts the selected speedThe number VJi was reduced to VJi1, setting VJi1= VJi × (1- (K-K0)2/K0)；
When K < K0, the central control unit increases the selected rate adjustment parameter VJi to VJi2, setting VJi2= VJi × (1+ (K0-K)/K0);
i=1，2，3。
further, the invention provides a preparation method of the suspended fertilizer, which comprises the following steps:
step S1, injecting the suspension mixture into a stirring bin through a first feed inlet, and starting a first power device connected with a stirring device by a central control unit to control the stirring device to stir the injected suspension mixture;
step S2, injecting the effective component mixture into the stirring bin through a second feeding hole, starting a second power device connected with the first power device by a central control unit to control the stirring device to oscillate the effective component mixture and the suspension mixture to form the suspended fertilizer, wherein the stirring bin comprises a foam recovery device for recovering foam generated in the preparation process of the suspended fertilizer, and the foam recovery device comprises an air exhaust device arranged at the air outlet of the stirring bin and a first detection device for detecting the weight of the generated foam;
step S3, after a preset time, the central control unit detects the relative viscosity of the current suspended fertilizer, a second discharge hole is formed in the bottom of the stirring bin, a suspended fertilizer relative viscosity detection device is arranged at the second discharge hole, and the suspended fertilizer relative viscosity detection device comprises a pipeline forming a certain angle with the horizontal plane, a detection barrel connected with the pipeline, a second detection device used for detecting the weight of the suspended fertilizer in the detection barrel and a third detection device used for detecting the viscosity of the suspended fertilizer;
step S4, the central control unit controls to open a third electromagnetic valve to output suspended fertilizers meeting preset standards;
in the step S2, after a first preset detection time, the central control unit obtains the weight of the foam generated in the stirring bin within the preset time through the first detection device, and the central control unit compares the weight of the foam with a preset value to adjust the stirring speed of the stirring device;
in the step S3, when the central control unit determines that the current relative viscosity of the suspended fertilizer needs to be detected, the central control unit turns on the fourth electromagnetic valve, and after a second preset detection time, the central control unit obtains the current relative viscosity of the suspended fertilizer according to the current flow rate of the suspended fertilizer and the current viscosity of the suspended fertilizer, and when the obtained relative viscosity of the suspended fertilizer by the central control unit does not meet a preset standard, the central control unit adjusts the feeding amount of the first feeding port according to the real-time flow rate of the suspended fertilizer and the current viscosity of the suspended fertilizer, and simultaneously controls the power parameter of the first power device to adjust the stirring rate and controls the power parameter of the second power device to adjust the oscillation frequency; when the relative viscosity of the suspended fertilizer obtained by the central control unit meets the preset standard, the central control unit does not adjust the feeding amount of the first feeding hole, the stirring speed of the stirring device and the oscillation frequency.
Further, the invention provides a suspended fertilizer formula which comprises a suspension mixture and an effective component mixture, wherein the suspension mixture comprises xanthan gum, polyglutamic acid and activated clay, and the effective component mixture comprises urea, potassium sulfate, monopotassium phosphate, zinc sulfate and manganese sulfate.
Compared with the prior art, the invention has the beneficial effects that through the arrangement of the central control unit, when the central control unit judges that the relative viscosity of the current suspended fertilizer needs to be detected, the central control unit opens the fourth electromagnetic valve, after the second preset detection time, the central control unit obtains the relative viscosity of the current suspended fertilizer according to the current suspended fertilizer flow rate and the current suspended fertilizer viscosity, and when the relative viscosity of the suspended fertilizer obtained by the central control unit does not meet the preset standard, the central control unit adjusts the feeding amount of the first feeding port according to the real-time suspended fertilizer flow rate and the suspended fertilizer viscosity, and simultaneously controls the power parameter of the first power device to adjust the stirring rate and controls the power parameter of the second power device to adjust the oscillation frequency; when the relative viscosity of the suspended fertilizer obtained by the central control unit meets the preset standard, the central control unit does not adjust the feeding amount of the first feeding hole, the stirring speed of the stirring device and the oscillation frequency.
In particular, the invention has an important effect on the application process of the suspended fertilizer according to the fluidity and the viscosity of the suspended fertilizer, wherein the fluidity influences the layering and caking of the suspended fertilizer, and the viscosity influences the dispersion degree of effective ingredients in the suspended fertilizer, so the invention designs a specific device to obtain the fluidity and the viscosity of the suspended fertilizer, the product of the fluidity and the viscosity of the suspended fertilizer is set as the relative viscosity of the suspended fertilizer to evaluate the relative parameters of the fluidity and the viscosity of the suspended fertilizer, meanwhile, the central control unit sets the standard parameter of the relative viscosity, the relative viscosity of the suspended fertilizer is compared with the standard parameter of the preset relative year according to the relative viscosity of the suspended fertilizer obtained by the central control unit, if the relative year of the suspended fertilizer is less than or equal to the first preset relative viscosity, the relative viscosity of the suspended fertilizer is poor, and the central control unit adjusts the feeding amount, the stirring rate and the vibrating frequency of the suspension, be used for increasing the relative viscosity of suspension fertilizer, if well accuse unit obtains current suspension fertilizer relative viscosity between first preset relative viscosity and the second preset relative viscosity, show that current suspension fertilizer relative viscosity accords with the preset standard, well accuse unit control third solenoid valve output is qualified suspension fertilizer, if well accuse unit obtains current suspension fertilizer and is greater than the second and predetermines relative viscosity, show that the mobility and the viscidity of current suspension fertilizer are too big, well accuse unit is through adjusting first solenoid valve and then adjusting first feed inlet feed volume, adjust the injection volume of suspension promptly, adjust agitating unit's stirring rate and vibration frequency simultaneously, so that the relative viscosity of suspension fertilizer accords with the preset standard.
Particularly, the invention obtains the relative viscosity of the current suspended fertilizer by the central control unit to be less than or equal to a first preset relative viscosity standard parameter, wherein if the viscosity of the current suspended fertilizer is less than or equal to the first preset suspended fertilizer viscosity standard parameter, under the premise that the relative viscosity of the current suspended fertilizer is lower than the first preset relative viscosity standard parameter, the reason that the relative viscosity of the current suspended fertilizer is too low is mainly due to too low viscosity, therefore, the central control unit greatly increases the feeding amount of the first feeding port, namely, increases the viscosity of the suspended fertilizer by increasing the injection amount of the suspension liquid, the central control unit obtains the viscosity of the current suspended fertilizer between the first preset suspended fertilizer viscosity and the second preset suspended fertilizer viscosity, and indicates that the viscosity of the current suspended fertilizer meets the preset standard, the central control unit does not adjust related components, if the viscosity of the current suspended fertilizer is greater than the second preset suspended fertilizer viscosity standard parameter, the main reason that the current suspended fertilizer is low in relative viscosity is not the viscosity of the suspended fertilizer, so that the central control unit reduces the injection amount of the suspension by reducing the feeding amount of the first feeding hole by a small range to reduce the viscosity of the current suspended fertilizer until the viscosity of the current suspended fertilizer meets the preset standard.
Particularly, the invention, through presetting the stirring speed and the oscillation frequency of the stirring device, the central control unit obtains that the current suspended fertilizer flow rate is less than or equal to a first preset flow rate, on the premise that the current suspended fertilizer relative viscosity is less than or equal to a first preset relative viscosity standard parameter, the reason that the current suspended fertilizer relative viscosity is low is because the current suspended fertilizer flow rate is low, therefore, the central control unit further improves the dispersion degree of the effective component mixture in the suspended fertilizer by greatly increasing the stirring speed and the oscillation frequency of the stirring device so as to improve the current suspended fertilizer flow rate to be within a preset standard range, the central control unit obtains that the current suspended fertilizer flow rate is between the first preset flow rate and a second preset flow rate, the central control unit judges that the current suspended fertilizer flow rate meets the preset standard, and the central control unit does not adjust the stirring speed and the oscillation frequency of the stirring device, the current suspended fertilizer obtained by the central control unit is greater than or equal to a second preset suspended fertilizer flow rate, the main reason that the relative viscosity of the current suspended fertilizer does not accord with the preset standard is not that the flow rate of the suspended fertilizer does not accord with the preset standard, and the stirring speed and the vibration frequency of the small-amplitude stirring device of the central control unit are reduced, so that the current suspended fertilizer flow rate accords with the preset standard.
Particularly, when the central control unit obtains the current relative viscosity of the suspended fertilizer is greater than or equal to the second preset relative viscosity of the suspended fertilizer, if the current viscosity of the suspended fertilizer is less than or equal to the first preset viscosity of the suspended fertilizer, the main reason that the current relative viscosity of the suspended fertilizer is higher is not the viscosity problem of the suspended fertilizer, therefore, the central control unit increases the feeding amount of the first feeding hole to improve the current viscosity of the suspended fertilizer in a small range, if the current viscosity of the suspended fertilizer is between the first preset viscosity of the suspended fertilizer and the second preset viscosity of the suspended fertilizer, the viscosity of the current suspended fertilizer is in accordance with the preset standard, the central control unit does not adjust the feeding amount of the first feeding hole, if the current viscosity of the suspended fertilizer is greater than or equal to the second preset viscosity of the suspended fertilizer, the main reason that the current relative viscosity of the suspended fertilizer is too high is that the viscosity of the suspended fertilizer, therefore, the central control unit greatly reduces the feeding amount of the first feeding hole, so that the viscosity of the current suspended fertilizer can meet the preset standard range, and the relative viscosity of the current suspended fertilizer can meet the preset standard.
Particularly, the invention obtains the second preset relative viscosity standard parameter that the relative viscosity of the current suspended fertilizer is more than or equal to through the central control unit, the central control unit obtains the first preset flow rate that the current suspended fertilizer flow rate is less than or equal to, and explains the problem that the main reason that the relative viscosity of the current suspended fertilizer is too high is not in the suspended fertilizer flow rate, therefore, the central control unit increases the stirring speed and the vibrating speed of the stirring device by a small margin to further improve the current suspended fertilizer flow rate, if the current suspended fertilizer flow rate is between the first preset suspended fertilizer flow rate and the second preset suspended fertilizer flow rate, the central control unit judges that the current suspended fertilizer flow rate meets the preset standard, does not adjust related components, if the current suspended fertilizer flow rate obtained by the central control unit is more than or equal to the second preset suspended fertilizer flow rate, explains that the reason that the relative viscosity of the current suspended fertilizer is higher is that the flow rate is higher, therefore, the central control unit simultaneously and greatly reduces the stirring speed and the vibration frequency of the stirring device, and the flow rate of the suspended fertilizer is reduced to be within a standard range, so that the relative viscosity of the suspended fertilizer meets the preset standard.
In particular, the invention adjusts the power parameter of the first power device by setting the power parameter of the first power device in the central control unit and comparing the stirring speed obtained by the central control unit in real time with the preset stirring speed, wherein the stirring speed of the stirring device obtained by the central control unit is more than or equal to the preset stirring speed value, which indicates that the power parameter of the first power device needs to be increased to ensure that the power parameter of the first power device is matched with the stirring speed of the stirring device, the stirring speed of the stirring device obtained by the central control unit is less than the preset stirring speed value, which indicates that the power parameter of the first power device needs to be reduced to ensure that the power parameter of the first power device is matched with the stirring speed of the stirring device, meanwhile, the invention also sets the power parameter of the second power device in the central control unit, which is compared with the preset vibration frequency according to the vibration frequency obtained by the central control unit in real time, and adjusting the power parameters of the second power device, wherein the vibrating frequency of the stirring device acquired by the central control unit is greater than or equal to a preset stirring speed value, which indicates that the power parameters of the second power device need to be improved to enable the power parameters of the second power device to be matched with the vibrating frequency of the stirring device, and the vibrating frequency of the stirring device acquired by the central control unit is less than a preset vibrating frequency value, which indicates that the power parameters of the second power device need to be reduced to enable the power parameters of the second power device to be matched with the vibrating frequency of the stirring device.
Particularly, the invention detects the amount of foam generated by the suspended fertilizer within a preset detection time through a specific device, and mostly within the preset detection time, the central control unit compares the amount of foam generated in the stirring bin acquired by the foam detection device with a preset foam standard value, selects a corresponding stirring speed adjusting parameter, and simultaneously, the central control unit adjusts the selected stirring speed adjusting parameter according to the real-time temperature change in the stirring bin, wherein if the real-time temperature in the stirring bin is higher than the preset value, the central control unit judges that the stirring speed of the current stirring device is too high, so that the temperature of the stirring bin is raised, further the viscosity and the fluidity of the current suspended fertilizer are not accurately acquired, so the central control unit judges that the selected stirring speed adjusting parameter is reduced, if the temperature in the stirring bin is lower than the preset value, the central control unit stabilizes the stirring speed of the current stirring device to be too low, the stirring of the stirring bin is insufficient, so that the central control unit slightly increases the stirring speed adjusting parameter according to the temperature change value so as to obtain the accurate stirring speed.
Drawings
FIG. 1 is a schematic diagram of a method for preparing a suspended fertilizer according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a suspended fertilizer preparation device in an embodiment of the invention;
FIG. 3 is a schematic structural diagram of a supporting cylinder of a suspended fertilizer preparation device in an embodiment of the invention;
FIG. 4 is a schematic structural diagram of an engaging barrel of a suspended fertilizer preparation device in an embodiment of the invention.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, a method for preparing a suspension fertilizer includes,
step S1, injecting the suspension mixture into a stirring bin through a first feed inlet, and starting a first power device connected with a stirring device by a central control unit to control the stirring device to stir the injected suspension mixture;
step S2, injecting the effective component mixture into the stirring bin through a second feeding hole, starting a second power device connected with the first power device by a central control unit to control the stirring device to oscillate the effective component mixture and the suspension mixture to form the suspended fertilizer, wherein the stirring bin comprises a foam recovery device for recovering foam generated in the preparation process of the suspended fertilizer, and the foam recovery device comprises an air exhaust device arranged at the air outlet of the stirring bin and a first detection device for detecting the weight of the generated foam;
step S3, after a preset time, the central control unit detects the relative viscosity of the current suspended fertilizer, a second discharge hole is formed in the bottom of the stirring bin, a suspended fertilizer relative viscosity detection device is arranged at the second discharge hole, and the suspended fertilizer relative viscosity detection device comprises a pipeline forming a certain angle with the horizontal plane, a detection barrel connected with the pipeline, a second detection device used for detecting the weight of the suspended fertilizer in the detection barrel and a third detection device used for detecting the viscosity of the suspended fertilizer;
step S4, the central control unit controls to open a third electromagnetic valve to output suspended fertilizers meeting preset standards;
in the step S2, after a first preset detection time, the central control unit obtains the weight of the foam generated in the stirring bin within the preset time through the first detection device, and the central control unit compares the weight of the foam with a preset value to adjust the stirring speed of the stirring device;
in the step S3, when the central control unit determines that the current relative viscosity of the suspended fertilizer needs to be detected, the central control unit turns on the fourth electromagnetic valve, and after a second preset detection time, the central control unit obtains the current relative viscosity of the suspended fertilizer according to the current flow rate of the suspended fertilizer and the current viscosity of the suspended fertilizer, and when the obtained relative viscosity of the suspended fertilizer by the central control unit does not meet a preset standard, the central control unit adjusts the feeding amount of the first feeding port according to the real-time flow rate of the suspended fertilizer and the current viscosity of the suspended fertilizer, and simultaneously controls the power parameter of the first power device to adjust the stirring rate and controls the power parameter of the second power device to adjust the oscillation frequency; when the relative viscosity of the suspended fertilizer obtained by the central control unit meets the preset standard, the central control unit does not adjust the feeding amount of the first feeding hole, the stirring speed of the stirring device and the oscillation frequency.
Referring to fig. 2, which is a schematic structural diagram of a suspended fertilizer preparation apparatus according to an embodiment of the present invention, the suspended fertilizer preparation apparatus includes a stirring bin, which includes a first power device for controlling stirring of a stirring device and a second power device for controlling oscillation of the stirring device; the foam recovery device is connected with the stirring bin and used for recovering foam generated in the preparation process of the suspended fertilizer, and the foam recovery device comprises an air exhaust device arranged at an air outlet of the stirring bin and a first detection device used for detecting the weight of the generated foam; the suspension fertilizer relative viscosity detection device is connected with the stirring bin and comprises a pipeline forming a certain angle with the horizontal plane, a detection barrel connected with the pipeline, a second detection device used for detecting the weight of the suspension fertilizer in the detection barrel and a third detection device used for detecting the viscosity of the suspension fertilizer; and the central control unit is connected with the first power device, the second power device, the foam recovery device and the suspension fertilizer relative viscosity detection device in the stirring bin, acquires the weight of foam generated in the stirring bin within a preset time through the first detection device, and compares the weight of the foam with a preset value to adjust the stirring speed of the stirring device.
Continuing to refer to fig. 2, a first electromagnetic valve 1 is used for controlling the feeding amount of a first feeding hole, a stirring box 3 is fixedly connected to the lower end of the first electromagnetic valve 1, a stirring bin 14 is arranged inside the stirring box 3, a second feeding hole is arranged at the position, away from the first feeding hole, of the stirring box, a second electromagnetic valve 12 is arranged at the position of the second feeding hole and used for controlling the feeding amount of the second feeding hole, a foam recycling device is fixedly connected to one side of the stirring box 3 and comprises a foam recycling chamber 4, an air extractor 26 is arranged in the foam recycling chamber and comprises an air extracting pump and an air extracting pipe connected with the air extracting pump, a drainage plate 5 is arranged in the foam recycling chamber and used for guiding the foam extracted by the air extractor to the bottom of the foam recycling chamber so that the foam weight detected by a first detection device 27 arranged at the bottom of the foam recycling chamber is more accurate, stirring storehouse inside is provided with first power device 19, and first power device's output shaft passes through shaft coupling fixedly connected with transfer line 17, and the first bearing 18 of outside fixedly connected with of transfer line 17, and the upper end fixedly connected with swing arm 13 of transfer line 17, and the outer wall fixedly connected with meshing section of thick bamboo 15 of swing arm 13, the upper end fixedly connected with supporting cylinder 7 of swing arm 13, the during operation, through first bearing 18 can be better provide lubricated work for transfer line 17, have better guarantee to the whole stirring efficiency and the stirring stability of equipment.
A floating plate 33 is arranged below the first power device and used for supporting the first power device, the floating plate is connected with the second power device 30, the second power device is used for driving the floating plate to move up and down, one side of the floating plate is connected with the first sliding device 28 through a first sliding sleeve 29, the other side of the floating plate is connected with the second sliding device 31 through a second sliding block 32, and the first sliding device and the second sliding device are used for enabling the floating plate to move up and down along the first sliding device and the second sliding device.
Stirring storehouse bottom is provided with first discharge gate, first discharge gate is provided with third solenoid valve 25, the third solenoid valve is used for controlling qualified suspension fertilizer output, first discharge gate top is provided with relative viscosity detection device, relative viscosity detection device includes the second discharge gate, and second discharge gate department is provided with fourth solenoid valve 20 for control suspension fertilizer detects the volume, second discharge gate department is provided with pipeline 21, the pipeline is personally submitted certain angle with the level, the pipeline below is provided with detection bucket 22 for the splendid attire waits to detect suspension fertilizer, it is provided with second detection device 28 to detect the bottom of the bucket, second detection device is used for acquireing the interior suspension fertilizer weight of detection bucket.
Referring to fig. 2, an angle θ formed by the pipeline and the horizontal plane in the embodiment of the present invention is 30 to 45 °, and the angle is not limited in the embodiment of the present invention as long as it can satisfy the requirement of detecting the flow rate of the suspended fertilizer.
In this embodiment, the motor 19 and the rotary rod 13 form a transmission structure through the transmission rod 17, and the central axis between the transmission rod 17 and the rotary rod 13 coincides with each other; during operation, the central axis between the transmission rod 17 and the rotating rod 13 is overlapped, so that the motor 19 can better keep the stability of the rotating circle center during transmission, and the shaking phenomenon cannot occur.
In this embodiment, the lower end of the outer wall of the rotating rod 13 is fixedly connected with a precipitation brush 23, bristles 24 are fixedly connected below the precipitation brush 23, and the precipitation brush 23 and the bristles 24 are two in number and symmetrically distributed on two sides of the bottom of the rotating rod 13; in operation, can drive precipitation brush 23 through swing arm 13 and rotate and let the inside stirring of equipment after the sediment can reduce, drive precipitation brush 23 pivoted in-process at first power device 19, the raw materials that make the inner bottom wall of agitator tank 3 deposit is continuous to be brushed, make it remain the motion state all the time, prevent that the raw materials from piling up, inside raw materials can obtain more abundant reaction, with the reaction maximize of raw materials, the turn-up ratio of raw materials is improved, and then the production capacity is improved, user's production efficiency is improved, the productivity is improved, stir the stirring comprehensiveness that carries out the raw materials of fertilizer that the rotation of stirring of sediment can be better, the quantity of precipitation brush 23 is two efficiency that can be better improvement stirring sediment.
Referring to fig. 3, which is a schematic structural view of a supporting cylinder of a suspension fertilizer preparation device according to an embodiment of the present invention, the supporting cylinder 7 includes a mounting opening 71, a sleeve 72, a second bearing 73 and a connecting rod 74, the upper end of the sleeve 72 is provided with the mounting opening 71, the lower end of the sleeve 72 is fixedly connected with the second bearing 73, and the inner wall of the second bearing 73 is fixedly connected with the connecting rod 74; during operation, can be better fix the position of swing arm 13 through a support section of thick bamboo 7, have better guarantee to the stirring job stabilization nature of equipment, can be more stable prepare the work in the use.
Referring to fig. 2 and 3, the central axes of the support cylinder 7 and the rotary rod 13 are coincident, and the inner dimension of the mounting opening 121 is matched with the outer dimension of the rotary rod 13; during operation, the central axes between the support cylinder 7 and the rotary rod 13 are overlapped to ensure that the rotary rod 13 can not influence the connection stability between the rotary rod and the support cylinder 7 during rotation.
Referring to fig. 4, which is a schematic view of a structure of an engaging cylinder of a suspension fertilizer preparation device according to an embodiment of the present invention, the engaging cylinder 15 includes a reserved hole 151, an engaging block 152, a cylinder body 153 and a fixed cylinder 154, the reserved hole 151 is formed in the cylinder body 153, the engaging block 152 is fixedly connected to an inner wall of the cylinder body 153, the fixed cylinder 154 is fixedly connected to a lower end of the cylinder body 153, and the number of the fixed cylinders 154 is three; during operation, the first bearing 18 can better provide lubrication for the transmission rod 17, and the whole stirring efficiency and the stirring stability of the device are better guaranteed.
Referring to fig. 2 and 4, the outer wall of the fixed cylinder 154 is fixedly connected with six stirring blades 16, two of the stirring blades 16 are in a group, and each group is symmetrically distributed on two sides of the outer wall of the fixed cylinder 154 according to the central axis of the fixed cylinder 154; during operation, the stirring blades 16 are symmetrically distributed according to the central axis of the fixed cylinder 154, so that the operation efficiency of the equipment is better guaranteed.
When the device works, a suspension liquid mixture is injected into the stirring box 3 through the first feed port and an effective component mixture is injected through the second feed port, the stirring device in the stirring bin comprises a supporting cylinder, a rotating rod, a meshing cylinder, a stirring blade, a transmission rod, a sedimentation brush, bristles, a first power device and a bearing which are mutually matched for stirring suspended fertilizer in the stirring bin, the second power device drives the floating plate to move up and down, the floating plate drives the first power device connected with the floating plate, and then drives the stirring device to move up and down, so as to realize the up-and-down oscillation of the stirring device while stirring, after a first detection time, the foam generated by stirring in the stirring bin is pumped to the foam recovery chamber by the air pump, after a second detection time, the suspension fertilizer to be detected enters the relative viscosity detection device for detection, the qualified suspension fertilizer is discharged through a second discharge hole, the production stability and the production qualification rate of the suspended fertilizer can be more effectively improved by discharging the foam in the working process.
In the step S3, the central control unit sets the relative viscosity to be P, sets P = L/L0 × N/N0, where L is the suspended fertilizer flow rate, LO is the suspended fertilizer flow rate standard value, N is the suspended fertilizer viscosity, N0 is the suspended fertilizer viscosity standard value, sets L = M/M, where M is the total weight of the current suspended fertilizer and M is the weight of the suspended fertilizer in the detection barrel, compares the obtained current suspended fertilizer relative viscosity P' with a preset relative viscosity standard parameter W, and determines whether the current suspended fertilizer relative viscosity meets a preset standard, where,
when P' is less than or equal to W1, the central control unit judges that the current suspended fertilizer does not meet the preset standard, and the central control unit adjusts the feeding amount of the first feeding hole and adjusts the stirring speed and the vibrating frequency of the stirring device;
when W1 is more than P' < W2, the central control unit judges that the current suspended fertilizer meets the preset standard, and the central control unit opens the first discharge port electromagnetic valve to produce the qualified suspended fertilizer;
when P' is not less than W2, the central control unit judges that the current suspended fertilizer does not meet the preset standard, and the central control unit adjusts the feeding amount of the first feeding hole and adjusts the stirring speed and the vibrating frequency of the stirring device;
the central control unit presets a standard parameter W of relative viscosity, and sets a first standard parameter W1 of relative viscosity and a second standard parameter W2 of relative viscosity.
Specifically, the embodiment of the invention has an important effect on the application process of the suspended fertilizer according to the fluidity and the viscosity of the suspended fertilizer, wherein the fluidity influences the layering and caking of the suspended fertilizer, and the viscosity influences the dispersion degree of effective ingredients in the suspended fertilizer, so the invention designs a specific device to obtain the fluidity and the viscosity of the suspended fertilizer, the product of the fluidity and the viscosity of the suspended fertilizer is used as the relative viscosity of the suspended fertilizer to evaluate the relative parameters of the fluidity and the viscosity of the suspended fertilizer, meanwhile, the central control unit sets the standard parameter of the relative viscosity, and the relative viscosity obtained according to the central control unit is compared with the standard parameter of the preset relative year, if the relative year of the suspended fertilizer is less than or equal to the first preset relative viscosity, the relative viscosity of the suspended fertilizer is poor, and the central control unit adjusts the feeding amount, the stirring rate and the vibrating frequency of the suspension, be used for increasing the relative viscosity of suspension fertilizer, if well accuse unit obtains current suspension fertilizer relative viscosity between first preset relative viscosity and the second preset relative viscosity, show that current suspension fertilizer relative viscosity accords with the preset standard, well accuse unit control third solenoid valve output is qualified suspension fertilizer, if well accuse unit obtains current suspension fertilizer and is greater than the second and predetermines relative viscosity, show that the mobility and the viscidity of current suspension fertilizer are too big, well accuse unit is through adjusting first solenoid valve and then adjusting first feed inlet feed volume, adjust the injection volume of suspension promptly, adjust agitating unit's stirring rate and vibration frequency simultaneously, so that the relative viscosity of suspension fertilizer accords with the preset standard.
When the relative viscosity of the current suspended fertilizer obtained by the central control unit is less than or equal to a first preset relative viscosity standard parameter, the central control unit obtains the viscosity N 'of the current suspended fertilizer and compares the viscosity N' with the preset viscosity N of the suspended fertilizer, and the feeding amount of the first feeding hole is adjusted, wherein,
when N 'is less than or equal to N1, the central control unit increases the feeding amount of the first feeding port M1 and adjusts the feeding amount to M11, and sets M11= M1 x (1+ (N1-N')/N1);
when N1 is more than L' < N2, the central control unit judges that the viscosity of the current suspended fertilizer meets the preset standard;
when N ' ≧ N2, the central control unit decreases the first throat feed amount M1 and adjusts to M12, setting M12= M1 × (1- (N ' -N2)/N2) × (P1-P ')/P1);
the central control unit presets suspended fertilizer viscosity N, sets first preset suspended fertilizer viscosity N1 and second preset suspended fertilizer viscosity N2.
Specifically, in the embodiment of the invention, the viscosity N1 of the first preset suspended fertilizer is 500-600, and the viscosity N2 of the second preset suspended fertilizer is 800-1000.
Specifically, in the embodiment of the present invention, a central control unit obtains a first preset standard parameter of relative viscosity of the current suspended fertilizer, wherein if the central control unit obtains that the viscosity of the current suspended fertilizer is less than or equal to the first preset viscosity of the suspended fertilizer, on the premise that the relative viscosity of the current suspended fertilizer is lower than the first preset standard parameter of relative viscosity, it indicates that the reason that the relative viscosity of the current suspended fertilizer is too low is mainly due to too low viscosity, therefore, the central control unit greatly increases the feeding amount of a first feeding port, that is, increases the viscosity of the suspended fertilizer by increasing the injection amount of a suspension liquid, the central control unit obtains that the viscosity of the current suspended fertilizer is between the first preset viscosity of the suspended fertilizer and a second preset viscosity of the suspended fertilizer, it indicates that the viscosity of the current suspended fertilizer meets the preset standard, the central control unit does not adjust related components, and if the viscosity of the current suspended fertilizer is greater than the second preset viscosity of the suspended fertilizer, the main reason that the current suspended fertilizer is low in relative viscosity is not the viscosity of the suspended fertilizer, so that the central control unit reduces the injection amount of the suspension by reducing the feeding amount of the first feeding hole by a small range to reduce the viscosity of the current suspended fertilizer until the viscosity of the current suspended fertilizer meets the preset standard.
The central control unit presets a stirring speed VO and an oscillation frequency P0, when the relative viscosity P ' of the current suspended fertilizer obtained by the central control unit is less than or equal to a first preset relative viscosity standard parameter, the central control unit obtains the current suspended fertilizer flow rate L ' and compares the current suspended fertilizer flow rate L ' with a preset suspended fertilizer flow rate L, the stirring speed and the oscillation frequency of the stirring device are adjusted, wherein,
when L ' ≦ L1, the central control unit increases the stirring device stirring rate V0 to V1, setting V1= V0 × (1+ (L1-L ')/L1), while increasing the stirring device vibration frequency PO to P1, setting P1= P0 × (1+ (L1-L ')/L1);
when L1 is more than L' < L2, the central control unit does not adjust the stirring speed and the vibration frequency of the stirring device;
when L ' ≧ L2, the central control unit reduces the stirring device stirring rate V0 to V2, sets V2= V0 × (1- (L ' -L2)/L2 × (P1-P ')/P1), and simultaneously reduces the stirring device vibration frequency PO to P2, sets P2= P0 × (1-L ' -L2)/L2 × (P1-P ')/P1);
the central control unit presets a current suspended fertilizer flow rate L, wherein the current suspended fertilizer flow rate L is a first preset current suspended fertilizer flow rate L1, and the current suspended fertilizer flow rate L2 is a second preset current suspended fertilizer flow rate L2.
Specifically, the first preset suspended fertilizer flow rate of the embodiment of the invention is 0.1-0.15, and the second preset suspended fertilizer flow rate is 0.2-0.25.
Specifically, in the embodiment of the invention, the stirring speed and the oscillation frequency of the stirring device are preset, the central control unit obtains that the current suspended fertilizer flow rate is less than or equal to a first preset flow rate, on the premise that the current suspended fertilizer relative viscosity is less than or equal to a first preset relative viscosity standard parameter, the reason that the current suspended fertilizer relative viscosity is low is because the current suspended fertilizer flow rate is low, therefore, the central control unit further improves the dispersion degree of the effective component mixture in the suspended fertilizer by greatly increasing the stirring speed and the oscillation frequency of the stirring device, so as to improve the current suspended fertilizer flow rate to be within a preset standard range, the central control unit obtains that the current suspended fertilizer flow rate is between the first preset flow rate and a second preset flow rate, the central control unit judges that the current suspended fertilizer flow rate meets the preset standard, and the central control unit does not adjust the stirring speed and the oscillation frequency of the stirring device, the current suspended fertilizer obtained by the central control unit is greater than or equal to a second preset suspended fertilizer flow rate, the main reason that the relative viscosity of the current suspended fertilizer does not accord with the preset standard is not that the flow rate of the suspended fertilizer does not accord with the preset standard, and the stirring speed and the vibration frequency of the small-amplitude stirring device of the central control unit are reduced, so that the current suspended fertilizer flow rate accords with the preset standard.
When the relative viscosity P ' of the current suspended fertilizer obtained by the central control unit is greater than or equal to a second preset relative viscosity standard parameter, the central control unit obtains the viscosity N ' of the current suspended fertilizer and compares the viscosity N ' with the preset viscosity N of the suspended fertilizer, and adjusts the feeding amount of the first feeding hole, wherein,
when N ' ≦ N1, the control unit increased the first feedwell feed rate M1 adjusted to M13, setting M13= M1 × (1+ (N1-N ')/N1 × (P ' -P2)/P2));
when N1 is more than L' < N2, the feeding amount of the first feeding hole is not adjusted by the central control unit;
when N '≧ N2, the central control unit reduced the first throat feed amount M1 adjusted to M14, setting M14= M1 × (1- (N' -N2)/N2).
Specifically, when the central control unit obtains the current relative viscosity of the suspended fertilizer is greater than or equal to the second preset relative viscosity of the suspended fertilizer, if the current viscosity of the suspended fertilizer is less than or equal to the first preset viscosity of the suspended fertilizer, it indicates that the main reason that the current relative viscosity of the suspended fertilizer is higher is not the viscosity problem of the suspended fertilizer, therefore, the central control unit increases the feeding amount of the first feeding port to increase the current viscosity of the suspended fertilizer by a small margin, if the current viscosity of the suspended fertilizer is between the first preset viscosity of the suspended fertilizer and the second preset viscosity of the suspended fertilizer, it indicates that the current viscosity of the suspended fertilizer meets the preset standard, the central control unit does not adjust the feeding amount of the first feeding port, and if the current viscosity of the suspended fertilizer is greater than or equal to the second preset viscosity of the suspended fertilizer, it indicates that the main reason that the current relative viscosity of the suspended fertilizer is too high is that the viscosity of the suspended fertilizer is too high, therefore, the feeding amount of the first feeding hole is greatly reduced by the central control unit, so that the viscosity of the current suspended fertilizer is within a range meeting a preset standard, and the relative viscosity of the current suspended fertilizer is in accordance with the preset standard.
The central control unit presets a stirring speed VO and an oscillation frequency P0, when the relative viscosity P 'of the current suspended fertilizer obtained by the central control unit is larger than or equal to a second preset relative viscosity standard parameter, the central control unit obtains the current suspended fertilizer flow rate L' and compares with the preset suspended fertilizer flow rate L, the stirring speed and the oscillation frequency of the stirring device are adjusted, wherein,
when L ' ≦ L1, the central control unit increases the stirring device stirring rate V0 to V3, setting V3= V0 × (1+ (L1-L ')/L1 × (P ' -P2)/P2)), while increasing the stirring device vibration frequency PO to P3, setting P3= P0 × (1+ (L1-L ')/L1 × (P ' -P2)/P2));
when L1 is more than L' < L2, the central control unit does not adjust the stirring speed and the vibration frequency of the stirring device;
when L ' ≧ L2, the central control unit reduces the stirring device stirring rate V0 to V4, sets V4= V0 × (1- (L ' -L2)/L2), simultaneously reduces the stirring device vibration frequency PO to P4, sets P4= P0 × (1- (L ' -L2)/L2).
Specifically, in the embodiment of the invention, the central control unit obtains a second preset relative viscosity standard parameter that the relative viscosity of the current suspended fertilizer is greater than or equal to a first preset relative viscosity standard parameter, and obtains a first preset flow rate that the flow rate of the current suspended fertilizer is less than or equal to a first preset flow rate, so as to explain that the main reason that the relative viscosity of the current suspended fertilizer is too high is not in the problem of the flow rate of the suspended fertilizer, therefore, the central control unit increases the stirring rate and the vibrating rate of the stirring device by a small margin to further improve the flow rate of the current suspended fertilizer, if the flow rate of the current suspended fertilizer is between the first preset suspended fertilizer flow rate and the second preset suspended fertilizer flow rate, the central control unit judges that the flow rate of the current suspended fertilizer meets the preset standard, does not adjust related components, if the flow rate of the current suspended fertilizer obtained by the central control unit is greater than or equal to the second preset suspended fertilizer flow rate, it is explained that the reason that the relative viscosity of the current suspended fertilizer is higher is that the flow rate is higher, therefore, the central control unit simultaneously and greatly reduces the stirring speed and the vibration frequency of the stirring device, and the flow rate of the suspended fertilizer is reduced to be within a standard range, so that the relative viscosity of the suspended fertilizer meets the preset standard.
The central control unit presets the first power device power parameter F10, and adjusts the first power device power parameter according to the comparison between the obtained stirring speed Vj of the stirring device and the preset stirring speed V0, wherein,
when Vj is larger than or equal to V0, the central control unit increases the first power device power parameter F10 to F11, and sets F11= F10 x (1+ (Vj-V0)/V0);
when Vj < V0, the central control unit reduces the first power-plant power parameter F10 to F12, setting F12= F10 × (1- (V0-Vj)/V0);
wherein j =1,2,3, 4.
The central control unit presets the second power device power parameter F20, and adjusts the second power device power parameter according to the comparison between the acquired oscillation frequency Pr of the stirring device and the preset oscillation frequency P0, wherein,
when Pr is larger than or equal to P0, the central control unit increases the second power device power parameter F20 to F21, and sets F21= F20 x (1+ (Pr-P0)/P0);
when Pr < P0, the central control unit reduces the second power plant power parameter F20 to F22, setting F22= F20 × (1- (P0-Pr)/P0);
wherein r =1,2,3, 4.
Specifically, in the embodiment of the invention, a power parameter of a first power device is adjusted by setting a power parameter of the first power device in a central control unit and comparing a stirring speed obtained by the central control unit in real time with a preset stirring speed, wherein the stirring speed of the stirring device obtained by the central control unit is greater than or equal to a preset stirring speed value, which indicates that the power parameter of the first power device needs to be increased to enable the power parameter of the first power device to be matched with the stirring speed of the stirring device, the stirring speed of the stirring device obtained by the central control unit is less than the preset stirring speed value, which indicates that the power parameter of the first power device needs to be decreased to enable the power parameter of the first power device to be matched with the stirring speed of the stirring device, and meanwhile, a power parameter of a second power device is also set in the central control unit, and compared with the preset vibration frequency according to the vibration frequency obtained by the central control unit in real time, and adjusting the power parameters of the second power device, wherein the vibrating frequency of the stirring device acquired by the central control unit is greater than or equal to a preset stirring speed value, which indicates that the power parameters of the second power device need to be improved to enable the power parameters of the second power device to be matched with the vibrating frequency of the stirring device, and the vibrating frequency of the stirring device acquired by the central control unit is less than a preset vibrating frequency value, which indicates that the power parameters of the second power device need to be reduced to enable the power parameters of the second power device to be matched with the vibrating frequency of the stirring device.
In step S2, the central control unit obtains a preset detection time t1 through the first detection device, compares the foam amount D in the foam recovery device with a preset foam amount E, selects a stirring rate adjustment parameter of the stirring device, and further obtains a stirring rate, where Vi' = Vi × VJi, and sets D = D1-D2, where D1 is the foam amount at the initial time of detection, D2 is the foam amount in the foam recovery device after the preset detection time t1, where,
when D is less than or equal to E1, the central control unit selects a first preset stirring speed adjusting parameter VJ1 as a stirring speed adjusting parameter;
when the E1 is more than D and less than E2, the central control unit selects a second preset stirring speed adjusting parameter VJ2 as a stirring speed adjusting parameter;
when D is larger than E2, the central control unit selects a third preset stirring speed adjusting parameter VJ3 as a stirring speed adjusting parameter;
the central control unit presets a foam quantity E, sets a first preset foam quantity E1 and a second preset foam quantity E2, presets a stirring speed adjusting parameter VJ, sets a first preset stirring speed adjusting parameter VJ1, a second preset stirring speed adjusting parameter VJ2 and a third preset stirring speed adjusting parameter VJ 3.
The central control unit obtains the real-time temperature K of the suspended fertilizer through a temperature detector arranged in the stirring bin, compares the real-time temperature with a preset temperature standard value K0 and adjusts the selected stirring speed adjusting parameter, wherein,
when K is more than or equal to K0, the central control unit reduces the selected speed adjusting parameter VJi to VJi1, and sets VJi1= VJi × (1- (K-K0)2/K0)；
When K < K0, the central control unit increases the selected rate adjustment parameter VJi to VJi2, setting VJi2= VJi × (1+ (K0-K)/K0);
i=1，2，3。
specifically, in the embodiment of the invention, the standard value of the temperature in the stirring bin is 25-30 ℃, in the embodiment of the invention, the specific equipment is used for detecting the amount of foam generated by the suspended fertilizer within the preset detection time, and in the preset detection time, the central control unit compares the amount of foam generated in the stirring bin and the preset standard value of the amount of foam obtained by the foam detection device, selects the corresponding stirring speed adjusting parameter, and simultaneously, the central control unit adjusts the selected stirring speed adjusting parameter according to the real-time temperature change in the stirring bin, wherein if the real-time temperature in the stirring bin is higher than the preset value, the central control unit judges that the stirring speed of the current stirring device is too high, so that the temperature of the stirring bin is raised, and the viscosity and the fluidity of the current suspended fertilizer are inaccurate, so the central control unit judges that the selected stirring speed adjusting parameter is reduced, if the temperature in the stirring bin is lower than the preset value, the central control unit stabilizes the stirring speed of the current stirring device to be too low, so that the stirring in the stirring bin is insufficient, and the central control unit slightly increases the stirring speed adjusting parameter according to the temperature change value to obtain the accurate stirring speed.
A suspended fertilizer formula comprises a suspension mixture and an effective component mixture, wherein the suspension mixture comprises xanthan gum, polyglutamic acid and active clay, and the effective component mixture comprises urea, potassium sulfate, monopotassium phosphate, zinc sulfate and manganese sulfate.
Specifically, in the embodiment of the invention, the weight ratio of the suspension mixture to the active ingredient mixture is 30-70 parts, wherein the suspension mixture comprises xanthan gum, polyglutamic acid and active clay, the xanthan gum, the polyglutamic acid and the active clay are 4-10 parts, 2-5 parts and 20-25 parts, and the active ingredient mixture comprises urea, potassium sulfate, potassium dihydrogen phosphate, zinc sulfate, manganese sulfate and water, wherein the urea is 30-45 parts, the potassium sulfate is 5-15 parts, the potassium dihydrogen phosphate is 10-20 parts, the zinc sulfate is 4-8 parts, the manganese sulfate is 2-6 parts and the water is 10-20 parts.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.

Claims (10)

1. A suspended fertilizer preparation device, comprising:
the stirring bin comprises a first power device for controlling the stirring of the stirring device and a second power device for controlling the oscillation of the stirring device;
the foam recovery device is connected with the stirring bin and used for recovering foam generated in the preparation process of the suspended fertilizer, and the foam recovery device comprises an air exhaust device arranged at an air outlet of the stirring bin and a first detection device used for detecting the weight of the generated foam;
the suspension fertilizer relative viscosity detection device is connected with the stirring bin and comprises a pipeline forming a certain angle with the horizontal plane, a detection barrel connected with the pipeline, a second detection device used for detecting the weight of the suspension fertilizer in the detection barrel and a third detection device used for detecting the viscosity of the suspension fertilizer;
the central control unit is connected with the first power device, the second power device, the foam recovery device and the suspension fertilizer relative viscosity detection device in the stirring bin, the central control unit obtains the weight of foam generated in the stirring bin within a preset time through the first detection device, and the central control unit compares the weight of the foam with a preset value to adjust the stirring speed of the stirring device;
the central control unit obtains the current relative viscosity of the suspended fertilizer according to the current flow rate of the suspended fertilizer and the current viscosity of the suspended fertilizer, and when the relative viscosity of the suspended fertilizer obtained by the central control unit does not meet the preset standard, the central control unit adjusts the feeding amount of the first feeding hole according to the real-time flow rate of the suspended fertilizer and the viscosity of the suspended fertilizer, and simultaneously controls the power parameters of the first power device to adjust the stirring rate and controls the power parameters of the second power device to adjust the oscillation frequency; when the relative viscosity of the suspended fertilizer obtained by the central control unit meets the preset standard, the central control unit does not adjust the feeding amount of the first feeding hole, the stirring speed of the stirring device and the oscillation frequency.
2. The apparatus of claim 1, wherein the central control unit sets a relative viscosity to P, sets P = L/L0 XN/N0, wherein L is a suspended fertilizer flow rate, LO is a suspended fertilizer flow rate criterion value, N is a suspended fertilizer viscosity, N0 is a suspended fertilizer viscosity criterion value, sets L = M/M, wherein M is a total weight of the current suspended fertilizer, and M is a weight of the suspended fertilizer in the detection tank, and determines whether the current suspended fertilizer relative viscosity meets a preset criterion by comparing the obtained current suspended fertilizer relative viscosity P' with a preset relative viscosity criterion parameter W, wherein,
when P' is less than or equal to W1, the central control unit judges that the current suspended fertilizer does not meet the preset standard, and the central control unit adjusts the feeding amount of the first feeding hole and adjusts the stirring speed and the vibrating frequency of the stirring device;
when W1 is more than P' < W2, the central control unit judges that the current suspended fertilizer meets the preset standard, and the central control unit opens the first discharge port electromagnetic valve to produce the qualified suspended fertilizer;
when P' is not less than W2, the central control unit judges that the current suspended fertilizer does not meet the preset standard, and the central control unit adjusts the feeding amount of the first feeding hole and adjusts the stirring speed and the vibrating frequency of the stirring device;
the central control unit presets a standard parameter W of relative viscosity, and sets a first standard parameter W1 of relative viscosity and a second standard parameter W2 of relative viscosity.
3. The apparatus for preparing suspended fertilizer according to claim 2, wherein when the relative viscosity of the suspended fertilizer obtained by the central control unit is less than or equal to a first preset relative viscosity standard parameter, the central control unit obtains the viscosity N 'of the suspended fertilizer and compares the viscosity N' with the preset viscosity N of the suspended fertilizer, and adjusts the feeding amount of the first feeding port, wherein,
when N 'is less than or equal to N1, the central control unit increases the feeding amount of the first feeding port M1 and adjusts the feeding amount to M11, and sets M11= M1 x (1+ (N1-N')/N1);
when N1 is more than L' < N2, the central control unit judges that the viscosity of the current suspended fertilizer meets the preset standard;
when N ' ≧ N2, the central control unit decreases the first throat feed amount M1 and adjusts to M12, setting M12= M1 × (1- (N ' -N2)/N2) × (P1-P ')/P1);
the central control unit presets suspended fertilizer viscosity N, sets first preset suspended fertilizer viscosity N1 and second preset suspended fertilizer viscosity N2.
4. The suspended fertilizer preparation apparatus of claim 2, wherein the central control unit presets a stirring speed VO and an oscillation frequency P0, and when the relative viscosity of the suspended fertilizer obtained by the central control unit is less than or equal to a first preset relative viscosity standard parameter, the central control unit obtains a current suspended fertilizer flow rate L 'and compares the current suspended fertilizer flow rate L' with a preset suspended fertilizer flow rate L, and adjusts the stirring speed and the oscillation frequency of the stirring apparatus, wherein,
when L ' ≦ L1, the central control unit increases the stirring device stirring rate V0 to V1, setting V1= V0 × (1+ (L1-L ')/L1), while increasing the stirring device vibration frequency PO to P1, setting P1= P0 × (1+ (L1-L ')/L1);
when L1 is more than L' < L2, the central control unit does not adjust the stirring speed and the vibration frequency of the stirring device;
when L ' ≧ L2, the central control unit reduces the stirring device stirring rate V0 to V2, sets V2= V0 × (1- (L ' -L2)/L2 × (P1-P ')/P1), and simultaneously reduces the stirring device vibration frequency PO to P2, sets P2= P0 × (1-L ' -L2)/L2 × (P1-P ')/P1);
the central control unit presets a current suspended fertilizer flow rate L, wherein the current suspended fertilizer flow rate L is a first preset current suspended fertilizer flow rate L1, and the current suspended fertilizer flow rate L2 is a second preset current suspended fertilizer flow rate L2.
5. The device for preparing suspended fertilizer according to claim 2, wherein when the relative viscosity of the suspended fertilizer obtained by the central control unit is greater than or equal to a second preset relative viscosity standard parameter, the central control unit obtains the viscosity N 'of the suspended fertilizer and compares the viscosity N' with the preset viscosity N of the suspended fertilizer, and adjusts the feeding amount of the first feeding hole, wherein,
when N ' ≦ N1, the control unit increased the first feedwell feed rate M1 adjusted to M13, setting M13= M1 × (1+ (N1-N ')/N1 × (P ' -P2)/P2));
when N1 is more than L' < N2, the feeding amount of the first feeding hole is not adjusted by the central control unit;
when N '≧ N2, the central control unit reduces the first feed inlet feed amount M1 and adjusts to M14, setting M14= M1 × (1- (N' -N2)/N2);
the central control unit presets suspended fertilizer viscosity N, sets first preset suspended fertilizer viscosity N1 and second preset suspended fertilizer viscosity N2.
6. The device for preparing suspended fertilizer as claimed in claim 5, wherein the central control unit presets a stirring speed VO and an oscillation frequency P0, and when the relative viscosity of the suspended fertilizer obtained by the central control unit is greater than or equal to a second preset relative viscosity standard parameter, the central control unit obtains a current suspended fertilizer flow rate L 'and compares the current suspended fertilizer flow rate L' with a preset suspended fertilizer flow rate L, and adjusts the stirring speed and the oscillation frequency of the stirring device, wherein,
when L ' ≦ L1, the central control unit increases the stirring device stirring rate V0 to V3, setting V3= V0 × (1+ (L1-L ')/L1 × (P ' -P2)/P2)), while increasing the stirring device vibration frequency PO to P3, setting P3= P0 × (1+ (L1-L ')/L1 × (P ' -P2)/P2));
when L1 is more than L' < L2, the central control unit does not adjust the stirring speed and the vibration frequency of the stirring device;
when L ' ≧ L2, the central control unit reduces the stirring device stirring speed V0 to V4, sets V4= V0 × (1- (L ' -L2)/L2), and simultaneously reduces the stirring device vibration frequency PO to P4, sets P4= P0 × (1- (L ' -L2)/L2);
the central control unit presets a current suspended fertilizer flow rate L, wherein the current suspended fertilizer flow rate L is a first preset current suspended fertilizer flow rate L1, and the current suspended fertilizer flow rate L2 is a second preset current suspended fertilizer flow rate L2.
7. The apparatus of claim 4 or 5, wherein the central control unit presets the first power plant power parameter F10, and adjusts the first power plant power parameter according to the obtained stirring speed Vj of the stirring device compared with a preset stirring speed V0, wherein,
when Vj is larger than or equal to V0, the central control unit increases the first power device power parameter F10 to F11, and sets F11= F10 x (1+ (Vj-V0)/V0);
when Vj < V0, the central control unit reduces the first power-plant power parameter F10 to F12, setting F12= F10 × (1- (V0-Vj)/V0);
the central control unit presets the second power device power parameter F20, and adjusts the second power device power parameter according to the comparison between the acquired oscillation frequency Pr of the stirring device and the preset oscillation frequency P0, wherein,
when Pr is larger than or equal to P0, the central control unit increases the second power device power parameter F20 to F21, and sets F21= F20 x (1+ (Pr-P0)/P0);
when Pr < P0, the central control unit reduces the second power plant power parameter F20 to F22, setting F22= F20 × (1- (P0-Pr)/P0);
wherein r =1,2,3,4, j =1,2,3, 4.
8. The apparatus of claim 7, wherein the central control unit obtains a preset detection time t1 through the first detection device, compares the foam amount D in the foam recovery device with a preset foam amount E, selects a stirring speed adjusting parameter of the stirring device, and further obtains a stirring speed, wherein Vi' = Vix VJi, and sets D = D1-D2, wherein D1 is the foam amount at the initial time of detection, D2 is the foam amount in the foam recovery device after a preset detection time t1, wherein,
when D is less than or equal to E1, the central control unit selects a first preset stirring speed adjusting parameter VJ1 as a stirring speed adjusting parameter;
when the E1 is more than D and less than E2, the central control unit selects a second preset stirring speed adjusting parameter VJ2 as a stirring speed adjusting parameter;
when D is larger than E2, the central control unit selects a third preset stirring speed adjusting parameter VJ3 as a stirring speed adjusting parameter;
the central control unit presets a foam quantity E, sets a first preset foam quantity E1 and a second preset foam quantity E2, presets a stirring speed adjusting parameter VJ, sets a first preset stirring speed adjusting parameter VJ1, a second preset stirring speed adjusting parameter VJ2 and a third preset stirring speed adjusting parameter VJ 3.
9. The method for preparing suspended fertilizer according to claim 8, wherein the central control unit adjusts the selected stirring speed adjusting parameter according to the real-time temperature K of the suspended fertilizer obtained by the temperature detector arranged in the stirring bin and the comparison between the real-time temperature and a preset temperature standard value K0, wherein,
when K is more than or equal to K0, the central control unit reduces the selected speed adjusting parameter VJi to VJi1, and sets VJi1= VJi × (1- (K-K0)2/K0)；
When K < K0, the central control unit increases the selected rate adjustment parameter VJi to VJi2, setting VJi2= VJi × (1+ (K0-K)/K0);
i=1，2，3。
10. a method for preparing a suspended fertilizer, the preparation device of which is based on the device of claims 1-9, comprising,
step S1, injecting the suspension mixture into a stirring bin through a first feed inlet, and starting a first power device connected with a stirring device by a central control unit to control the stirring device to stir the injected suspension mixture;
step S2, injecting the effective component mixture into the stirring bin through a second feeding hole, starting a second power device connected with the first power device by a central control unit to control the stirring device to oscillate the effective component mixture and the suspension mixture to form the suspended fertilizer, wherein the stirring bin comprises a foam recovery device for recovering foam generated in the preparation process of the suspended fertilizer, and the foam recovery device comprises an air exhaust device arranged at the air outlet of the stirring bin and a first detection device for detecting the weight of the generated foam;
step S3, after a preset time, the central control unit detects the relative viscosity of the current suspended fertilizer, a second discharge hole is formed in the bottom of the stirring bin, a suspended fertilizer relative viscosity detection device is arranged at the second discharge hole, and the suspended fertilizer relative viscosity detection device comprises a pipeline forming a certain angle with the horizontal plane, a detection barrel connected with the pipeline, a second detection device used for detecting the weight of the suspended fertilizer in the detection barrel and a third detection device used for detecting the viscosity of the suspended fertilizer;
step S4, the central control unit controls to open a third electromagnetic valve to output suspended fertilizers meeting preset standards;
in the step S2, after a first preset detection time, the central control unit obtains the weight of the foam generated in the stirring bin within the preset time through the first detection device, and the central control unit compares the weight of the foam with a preset value to adjust the stirring speed of the stirring device;
in the step S3, when the central control unit determines that the current relative viscosity of the suspended fertilizer needs to be detected, the central control unit turns on the fourth electromagnetic valve, and after a second preset detection time, the central control unit obtains the current relative viscosity of the suspended fertilizer according to the current flow rate of the suspended fertilizer and the current viscosity of the suspended fertilizer, and when the obtained relative viscosity of the suspended fertilizer by the central control unit does not meet a preset standard, the central control unit adjusts the feeding amount of the first feeding port according to the real-time flow rate of the suspended fertilizer and the current viscosity of the suspended fertilizer, and simultaneously controls the power parameter of the first power device to adjust the stirring rate and controls the power parameter of the second power device to adjust the oscillation frequency; when the relative viscosity of the suspended fertilizer obtained by the central control unit meets the preset standard, the central control unit does not adjust the feeding amount of the first feeding hole, the stirring speed of the stirring device and the oscillation frequency.
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