CN115957881B - Treatment method for white carbon black modifier - Google Patents
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- CN115957881B CN115957881B CN202310253080.0A CN202310253080A CN115957881B CN 115957881 B CN115957881 B CN 115957881B CN 202310253080 A CN202310253080 A CN 202310253080A CN 115957881 B CN115957881 B CN 115957881B
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Abstract
The application relates to the technical field of white carbon black modification, and discloses a treatment method for a white carbon black modifier, which comprises the following steps: the control unit carries out proportioning adjustment on the white carbon black and the modifier according to a preset proportioning rule to obtain an initial mixture, the initial mixture is conveyed into a pulverizer of an impact mill based on a draught fan, the control unit controls the pulverizer of the impact mill to pulverize the initial mixture to generate a pulverized mixture, and the control unit controls the classifier of the impact mill to classify the pulverized mixture based on the draught fan to obtain the modified white carbon black.
Description
Technical Field
The application relates to the technical field of white carbon black modification, in particular to a treatment method for a white carbon black modifier.
Background
White carbon black, also called amorphous silica, has the characteristics of high chemical heat stability, strong porous adsorption capacity, large specific surface area, light color, electrical insulation, flame retardance and the like, and is widely applied to the fields of electronics, medicine, optics and the like. In addition, in the traditional processing field, the white carbon black can be used as a filler to reinforce high polymer materials such as rubber, plastics, resin, fiber, paint coating and the like. However, the surface of the white carbon black contains a large amount of hydroxyl groups and physical adsorption water, so that the white carbon black has stronger hydrophilicity, and because of the interaction between smaller particles and strong molecules, the white carbon black particles tend to aggregate more, cannot generate good infiltration with an organic medium, and can cause adverse effects on the performance of products. For example, when it is applied to a reinforced silicone rubber, unmodified white carbon black is hardly dispersed in the silicone rubber, and it is difficult to form a coupling bond between the filler and the matrix molecule, so that both the reinforcing effect and the vulcanization efficiency are significantly reduced. Therefore, in order to better improve the enhancement effect, improve the product value and expand the application range of the commodity, the white carbon black must be modified to a certain extent.
In the prior art, normally, white carbon black with certain quality is placed in a first reaction kettle, the white carbon black is crushed at a high speed, then a modifier with certain quality is placed in a second reaction kettle, the first reaction kettle and the second reaction kettle are heated and vacuumized, finally the first reaction kettle and the second reaction kettle are communicated, the modification treatment of the white carbon black is realized under the action of high temperature and high pressure, when the white carbon black is treated according to the mode, the temperature, the pressure and the like of the reaction kettle are required to be accurately controlled, and the control parameters are often set according to the experience of staff, so that data errors are easy to occur when the parameters in the reaction process are set, further, the waste of materials is caused, meanwhile, the treatment method in the prior art is single, the control parameters cannot be adjusted in real time according to the actual reaction condition, further, the modification effect of the white carbon black is poor, and the production efficiency is seriously reduced.
Therefore, how to provide a method for effectively treating the white carbon black and the modifier is a technical problem to be solved at present.
Disclosure of Invention
The embodiment of the invention provides a treatment method for a white carbon black modifier, which is used for solving the technical problems that state parameters in the white carbon black modification process cannot be accurately adjusted, the modification degree of the white carbon black cannot be effectively controlled and the modification effect of the white carbon black cannot be improved in the prior art.
In order to achieve the above object, the present invention provides a treatment method for a white carbon black modifier, comprising:
the control unit performs proportioning adjustment on the white carbon black and the modifier according to a preset proportioning rule to obtain an initial mixture;
delivering the initial mixture to a pulverizer of an impact mill based on an induced draft fan;
the control unit controls the pulverizer of the impact mill to pulverize the initial mixture to generate a pulverized mixture, and the pulverized mixture is conveyed into the classifier of the impact mill based on the induced draft fan;
and the control unit controls the grader of the impact mill to grade the crushed mixture and obtain the modified white carbon black.
In one embodiment, the control unit comprises:
the collecting module is used for collecting the feeding speed A of the initial mixture, the feeding quantity B of the initial mixture and the air quantity C of the induced draft fan;
the processing module is used for setting working state parameters of the pulverizer and the classifier according to the feeding speed A of the initial mixture, the feeding quantity B of the initial mixture and the air quantity C of the induced draft fan;
and the control module is used for controlling the pulverizer and the classifier according to the working state parameters.
In one embodiment, the processing module is configured to preset a feed rate matrix D of the initial mixture, set D (D1, D2, D3, D4), where D1 is a feed rate of the first preset initial mixture, D2 is a feed rate of the second preset initial mixture, D3 is a feed rate of the third preset initial mixture, D4 is a feed rate of the fourth preset initial mixture, and D1 < D2 < D3 < D4;
the processing module is used for presetting a rotating speed matrix E of the pulverizer, setting E (E1, E2, E3, E4 and E5), wherein E1 is the rotating speed of the first preset pulverizer, E2 is the rotating speed of the second preset pulverizer, E3 is the rotating speed of the third preset pulverizer, E4 is the rotating speed of the fourth preset pulverizer, E5 is the rotating speed of the fifth preset pulverizer, E1 is more than E2 and less than E3 and E4 is more than E5;
the processing module is further used for setting the rotating speed of the pulverizer according to the relation between the feeding speed A of the initial mixture and the feeding speed of each preset initial mixture:
when A < D1, selecting the rotating speed E1 of the first preset pulverizer as the rotating speed of the pulverizer;
when D1 is less than or equal to A and less than D2, selecting the rotating speed E2 of the second preset pulverizer as the rotating speed of the pulverizer;
When D2 is less than or equal to A and less than D3, selecting the rotating speed E3 of the third preset pulverizer as the rotating speed of the pulverizer;
when D3 is less than or equal to A and less than D4, selecting the rotating speed E4 of the fourth preset pulverizer as the rotating speed of the pulverizer;
and when D4 is less than or equal to A, selecting the rotating speed E5 of the fifth preset pulverizer as the rotating speed of the pulverizer.
In one embodiment, the processing module is configured to preset a feed amount matrix F of the initial mixture, and set F (F1, F2, F3, F4), where F1 is a feed amount of a first preset initial mixture, F2 is a feed amount of a second preset initial mixture, F3 is a feed amount of a third preset initial mixture, F4 is a feed amount of a fourth preset initial mixture, and F1 < F2 < F3 < F4;
the processing module is used for presetting a rotational speed correction coefficient matrix h of the pulverizer, setting h (h 1, h2, h3, h4 and h 5), wherein h1 is a rotational speed correction coefficient of a first preset pulverizer, h2 is a rotational speed correction coefficient of a second preset pulverizer, h3 is a rotational speed correction coefficient of a third preset pulverizer, h4 is a rotational speed correction coefficient of a fourth preset pulverizer, h5 is a rotational speed correction coefficient of a fifth preset pulverizer, and h1 is more than 0.8 and less than h2 and h3 and less than h4 and less than h5 and less than 1.2;
After the processing module selects the rotation speed Ei of the ith preset pulverizer as the rotation speed of the pulverizer, i=1, 2,3,4,5, and corrects the rotation speed of the pulverizer according to the relation between the feeding amount B of the initial mixture and the feeding amount of each preset initial mixture:
when B is smaller than F1, selecting a rotating speed correction coefficient h1 of the first preset pulverizer to correct the rotating speed Ei of the pulverizer, wherein the rotating speed of the pulverizer after correction is Ei×h1;
when F1 is less than or equal to B and less than F2, selecting a rotating speed correction coefficient h2 of the second preset pulverizer to correct the rotating speed Ei of the pulverizer, wherein the rotating speed of the pulverizer after correction is Ei x h2;
when F2 is less than or equal to B and less than F3, selecting a rotating speed correction coefficient h3 of the third preset pulverizer to correct the rotating speed Ei of the pulverizer, wherein the rotating speed of the pulverizer after correction is Ei.h3;
when F3 is less than or equal to B and less than F4, selecting a rotation speed correction coefficient h4 of the fourth preset pulverizer to correct the rotation speed Ei of the pulverizer, wherein the rotation speed of the pulverizer after correction is Ei.h4;
and when F4 is less than or equal to B, selecting a rotation speed correction coefficient h5 of the fifth preset pulverizer to correct the rotation speed Ei of the pulverizer, wherein the rotation speed of the pulverizer after correction is Ei×h5.
In one embodiment, the processing module is configured to preset an air volume matrix G of the induced draft fan, and set G (G1, G2, G3, G4), where G1 is an air volume of the first preset induced draft fan, G2 is an air volume of the second preset induced draft fan, G3 is an air volume of the third preset induced draft fan, G4 is an air volume of the fourth preset induced draft fan, and G1 < G2 < G3 < G4;
the processing module is used for presetting a rotating speed matrix J of the grader, setting J (J1, J2, J3, J4 and J5), wherein J1 is the rotating speed of the first preset grader, J2 is the rotating speed of the second preset grader, J3 is the rotating speed of the third preset grader, J4 is the rotating speed of the fourth preset grader, J5 is the rotating speed of the fifth preset grader, and J1 is more than J2 and less than J3 and less than J4 and less than J5;
the processing module is also used for setting the rotating speed of the classifier according to the relation between the air quantity C of the induced draft fan and the air quantity of each preset induced draft fan:
when C is smaller than G1, selecting the rotating speed J1 of the first preset classifier as the rotating speed of the classifier;
when G1 is less than or equal to C and less than G2, selecting the rotating speed J2 of the second preset classifier as the rotating speed of the classifier;
when G2 is less than or equal to C and less than G3, selecting the rotating speed J3 of the third preset classifier as the rotating speed of the classifier;
When G3 is less than or equal to C and less than G4, selecting the rotating speed J4 of the fourth preset classifier as the rotating speed of the classifier;
and when G4 is less than or equal to C, selecting the rotating speed J5 of the fifth preset classifier as the rotating speed of the classifier.
In one embodiment, when the control unit controls the classifier of the impact mill to classify the pulverized mixture and obtain the modified white carbon black, the method includes:
classifying the crushed mixture according to a classifier of the impact mill, and obtaining a classified mixture;
judging whether the granularity of the grading mixture accords with a granularity threshold value, if so, judging that the grading mixture is qualified, collecting the grading mixture, and obtaining modified white carbon black;
if not, judging that the grading mixture is unqualified, and conveying the grading mixture into a pulverizer of the impact mill based on the induced draft fan for secondary pulverization.
In one embodiment, when the classified mixture is conveyed to the crusher of the impact mill based on the induced draft fan for secondary crushing, the method comprises:
collecting the granularity K of the grading mixture according to the collecting module;
the processing module carries out secondary correction on the rotating speed of the pulverizer according to the particle size difference value between the particle size K of the grading mixture and the particle size threshold value P, and obtains the rotating speed of the pulverizer after the secondary correction;
And secondarily pulverizing the classified mixture based on the rotation speed of the secondarily corrected pulverizer.
In one embodiment, the processing module, when performing secondary correction on the rotational speed of the pulverizer according to the particle size difference between the particle size K of the classified mixture and the particle size threshold P, includes:
the processing module is used for presetting a granularity difference matrix Q, setting Q (Q1, Q2, Q3 and Q4), wherein Q1 is a first preset granularity difference, Q2 is a second preset granularity difference, Q3 is a third preset granularity difference, Q4 is a fourth preset granularity difference, and Q1 is more than Q2 and less than Q3 and less than Q4;
the processing module is used for presetting a rotational speed secondary correction coefficient matrix m of the pulverizer, setting m (m 1, m2, m3, m4 and m 5), wherein m1 is a rotational speed secondary correction coefficient of a first preset pulverizer, m2 is a rotational speed secondary correction coefficient of a second preset pulverizer, m3 is a rotational speed secondary correction coefficient of a third preset pulverizer, m4 is a rotational speed secondary correction coefficient of a fourth preset pulverizer, m5 is a rotational speed secondary correction coefficient of a fifth preset pulverizer, and m1 is more than 0.8 and less than m2 and less than m4 and less than m5 and less than 1.2;
after the processing module selects the rotation speed ei×hi of the ith preset pulverizer as the rotation speed of the pulverizer, i=1, 2,3,4,5, and further performs secondary correction on the rotation speed of the pulverizer according to the relationship between the particle size difference |k-p| between the particle size K of the classified mixture and the particle size threshold P and each preset particle size difference:
When the K-P < Q1, selecting a second correction coefficient m1 of the rotation speed of the first preset pulverizer to correct the rotation speed Ei x hi of the pulverizer, wherein the rotation speed Ei x hi m1 of the pulverizer after correction;
when Q1 is less than or equal to the L-K-P and less than Q2, selecting a rotating speed secondary correction coefficient m2 of the second preset pulverizer to correct the rotating speed Ei/h of the pulverizer, wherein the rotating speed of the pulverizer after correction is Ei/h m2;
when Q2 is less than or equal to the L-K-P and less than Q3, selecting a rotating speed secondary correction coefficient m3 of the third preset pulverizer to correct the rotating speed Ei/h of the pulverizer, wherein the rotating speed of the pulverizer after correction is Ei/h/m 3;
when Q3 is less than or equal to the L-K-P and less than Q4, selecting a rotating speed secondary correction coefficient m4 of the fourth preset pulverizer to correct the rotating speed Ei x hi of the pulverizer, wherein the rotating speed of the pulverizer after correction is Ei x hi m4;
and when Q4 is less than or equal to the |K-P|, selecting a second correction coefficient m5 of the rotating speed of the fifth preset pulverizer to correct the rotating speed Ei×hi of the pulverizer, wherein the rotating speed of the pulverizer after correction is Ei×hi m5.
The application provides a treatment method for a white carbon black modifier, which has the following beneficial effects compared with the prior art:
the application discloses a treatment method for a white carbon black modifier, which comprises the following steps: the control unit carries out proportioning adjustment on the white carbon black and the modifier according to a preset proportioning rule to obtain an initial mixture, the initial mixture is conveyed into a pulverizer of an impact mill based on a draught fan, the control unit controls the pulverizer of the impact mill to pulverize the initial mixture to generate a pulverized mixture, and the control unit controls the classifier of the impact mill to classify the pulverized mixture based on the draught fan to obtain the modified white carbon black.
Drawings
FIG. 1 shows a schematic flow chart of a treatment method for a white carbon black modifier in an embodiment of the application;
fig. 2 shows a functional block diagram of a control unit in an embodiment of the application.
Detailed Description
The following describes in further detail the embodiments of the present application with reference to the drawings and examples. The following examples are illustrative of the application and are not intended to limit the scope of the application.
In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
The following is a description of preferred embodiments of the application, taken in conjunction with the accompanying drawings.
As shown in fig. 1, an embodiment of the present application discloses a treatment method for a white carbon black modifier, including:
step S100: the control unit performs proportioning adjustment on the white carbon black and the modifier according to a preset proportioning rule to obtain an initial mixture;
step S200: delivering the initial mixture to a pulverizer of an impact mill based on an induced draft fan;
step S300: the control unit controls the pulverizer of the impact mill to pulverize the initial mixture to generate a pulverized mixture, and the pulverized mixture is conveyed into the classifier of the impact mill based on the induced draft fan;
Step S400: and the control unit controls the grader of the impact mill to grade the crushed mixture and obtain the modified white carbon black.
The control unit in the application carries out proportioning adjustment on the white carbon black and the modifier according to the preset proportioning rule to obtain an initial mixture, the initial mixture is conveyed into a pulverizer of an impact mill based on a draught fan, the control unit controls the pulverizer of the impact mill to pulverize the initial mixture to generate a pulverized mixture, and the pulverized mixture is conveyed into a classifier of the impact mill based on the draught fan, and the control unit controls the classifier of the impact mill to classify the pulverized mixture and obtain the modified white carbon black.
The pulverizer and the classifier are controlled by a frequency converter, the frequency converter is electrically connected to a control unit, and the control unit controls the rotation speeds of the pulverizer and the classifier by controlling the frequency converter.
The white carbon black in the present application may be of the following types: white carbon 6165MP, white carbon 6175MP, etc., and the specific type of white carbon is not particularly limited. The modifier may be selected according to the actual situation, and is not particularly limited herein.
As shown in fig. 2, in some embodiments of the application, the control unit includes:
the collecting module is used for collecting the feeding speed A of the initial mixture, the feeding quantity B of the initial mixture and the air quantity C of the induced draft fan;
the processing module is used for setting working state parameters of the pulverizer and the classifier according to the feeding speed A of the initial mixture, the feeding quantity B of the initial mixture and the air quantity C of the induced draft fan;
and the control module is used for controlling the pulverizer and the classifier according to the working state parameters.
It should be noted that, the control unit in the application can accurately regulate and control the working state parameters of the crusher and the classifier in the impact mill according to the actual production condition, thereby avoiding the phenomenon of energy waste and effectively improving the crushing efficiency and the classifying efficiency.
In some embodiments of the application, the processing module is configured to preset a feed rate matrix D of the initial mixture, set D (D1, D2, D3, D4), wherein D1 is a feed rate of the first preset initial mixture, D2 is a feed rate of the second preset initial mixture, D3 is a feed rate of the third preset initial mixture, D4 is a feed rate of the fourth preset initial mixture, and D1 < D2 < D3 < D4;
The processing module is used for presetting a rotating speed matrix E of the pulverizer, setting E (E1, E2, E3, E4 and E5), wherein E1 is the rotating speed of the first preset pulverizer, E2 is the rotating speed of the second preset pulverizer, E3 is the rotating speed of the third preset pulverizer, E4 is the rotating speed of the fourth preset pulverizer, E5 is the rotating speed of the fifth preset pulverizer, E1 is more than E2 and less than E3 and E4 is more than E5;
the processing module is further used for setting the rotating speed of the pulverizer according to the relation between the feeding speed A of the initial mixture and the feeding speed of each preset initial mixture:
when A < D1, selecting the rotating speed E1 of the first preset pulverizer as the rotating speed of the pulverizer;
when D1 is less than or equal to A and less than D2, selecting the rotating speed E2 of the second preset pulverizer as the rotating speed of the pulverizer;
when D2 is less than or equal to A and less than D3, selecting the rotating speed E3 of the third preset pulverizer as the rotating speed of the pulverizer;
when D3 is less than or equal to A and less than D4, selecting the rotating speed E4 of the fourth preset pulverizer as the rotating speed of the pulverizer;
and when D4 is less than or equal to A, selecting the rotating speed E5 of the fifth preset pulverizer as the rotating speed of the pulverizer.
After the initial mixture enters the pulverizer, under the action of the high-speed impact hammer and the toothed plate, severe collision, friction and shearing are generated to pulverize the initial mixture, and meanwhile, the water-cooling jacket is adopted outside the pulverizer to cool, and the initial mixture enters the pulverizer along with wind to pulverize, so that the pulverizing temperature can be reduced.
It should be noted that the faster the initial mixture is fed, the more initial mixture is needed to be crushed in the crusher, the more initial mixture will cause the increase of the main shaft load of the crusher, and the damage of the frequency converter will be easily caused, but the too less initial mixture will greatly reduce the crushing efficiency, so the processing module in the application is also used for setting the rotation speed of the crusher according to the relation between the feeding speed A of the initial mixture and the feeding speed of each preset initial mixture, wherein, the specific selection of D1, D2, D3 and D4 can be determined according to the actual situation;
specifically, the feeding speed D1 of the first preset initial mixture is set to 10kg/min, the feeding speed D2 of the second preset initial mixture is set to 20kg/min, the feeding speed D3 of the third preset initial mixture is set to 30kg/min, and the feeding speed D4 of the fourth preset initial mixture is set to 40kg/min;
setting the rotation speed E1 of the first preset pulverizer to 10rpm, setting the rotation speed E2 of the second preset pulverizer to 20rpm, setting the rotation speed E3 of the third preset pulverizer to 30rpm, setting the rotation speed E4 of the fourth preset pulverizer to 40rpm, and setting the rotation speed E5 of the fifth preset pulverizer to 50rpm;
When the feeding speed A of the initial mixture is less than 10kg/min, the rotation speed of the pulverizer is set to 10rpm, when the feeding speed A of 10kg/min is less than or equal to 20kg/min, the rotation speed of the pulverizer is set to 20rpm, when the feeding speed A of 20kg/min is less than or equal to 30kg/min, the rotation speed of the pulverizer is set to 30rpm, when the feeding speed A of 30kg/min is less than or equal to 40kg/min, the rotation speed of the pulverizer is set to 40rpm, and when the feeding speed A of 40kg/min is less than or equal to the feeding speed A of the initial mixture, the rotation speed of the pulverizer is set to 50rpm. The application can effectively improve the crushing efficiency of the crusher in the impact mill by setting the rotating speed of the crusher.
In some embodiments of the present application, the processing module is configured to preset a feed amount matrix F of an initial mixture, set F (F1, F2, F3, F4), where F1 is a feed amount of a first preset initial mixture, F2 is a feed amount of a second preset initial mixture, F3 is a feed amount of a third preset initial mixture, F4 is a feed amount of a fourth preset initial mixture, and F1 < F2 < F3 < F4;
the processing module is used for presetting a rotational speed correction coefficient matrix h of the pulverizer, setting h (h 1, h2, h3, h4 and h 5), wherein h1 is a rotational speed correction coefficient of a first preset pulverizer, h2 is a rotational speed correction coefficient of a second preset pulverizer, h3 is a rotational speed correction coefficient of a third preset pulverizer, h4 is a rotational speed correction coefficient of a fourth preset pulverizer, h5 is a rotational speed correction coefficient of a fifth preset pulverizer, and h1 is more than 0.8 and less than h2 and h3 and less than h4 and less than h5 and less than 1.2;
After the processing module selects the rotation speed Ei of the ith preset pulverizer as the rotation speed of the pulverizer, i=1, 2,3,4,5, and corrects the rotation speed of the pulverizer according to the relation between the feeding amount B of the initial mixture and the feeding amount of each preset initial mixture:
when B is smaller than F1, selecting a rotating speed correction coefficient h1 of the first preset pulverizer to correct the rotating speed Ei of the pulverizer, wherein the rotating speed of the pulverizer after correction is Ei×h1;
when F1 is less than or equal to B and less than F2, selecting a rotating speed correction coefficient h2 of the second preset pulverizer to correct the rotating speed Ei of the pulverizer, wherein the rotating speed of the pulverizer after correction is Ei x h2;
when F2 is less than or equal to B and less than F3, selecting a rotating speed correction coefficient h3 of the third preset pulverizer to correct the rotating speed Ei of the pulverizer, wherein the rotating speed of the pulverizer after correction is Ei.h3;
when F3 is less than or equal to B and less than F4, selecting a rotation speed correction coefficient h4 of the fourth preset pulverizer to correct the rotation speed Ei of the pulverizer, wherein the rotation speed of the pulverizer after correction is Ei.h4;
and when F4 is less than or equal to B, selecting a rotation speed correction coefficient h5 of the fifth preset pulverizer to correct the rotation speed Ei of the pulverizer, wherein the rotation speed of the pulverizer after correction is Ei×h5.
It should be noted that, after the rotational speed Ei of the ith preset pulverizer is selected as the rotational speed Ei of the pulverizer, the processing module in the present application corrects the rotational speed Ei of the pulverizer according to the relationship between the feeding amount B of the initial mixture and the feeding amounts of the preset initial mixtures, where the specific selection of F1, F2, F3, and F4 may be determined according to the actual situation;
specifically, the feeding amount F1 of the first preset initial mixture is set to 50kg, the feeding amount F2 of the second preset initial mixture is set to 60kg, the feeding amount F3 of the third preset initial mixture is set to 70kg, and the feeding amount F4 of the fourth preset initial mixture is set to 80kg;
the rotational speed correction coefficient h1 of the first preset pulverizer is preset to be 0.9, the rotational speed correction coefficient h2 of the second preset pulverizer is preset to be 0.95, the rotational speed correction coefficient h3 of the third preset pulverizer is preset to be 1, the rotational speed correction coefficient h4 of the fourth preset pulverizer is preset to be 1.1, and the rotational speed correction coefficient h5 of the fifth preset pulverizer is preset to be 1.15;
when the feeding amount B of the initial mixture is less than 50kg, a rotational speed correction coefficient h1 (0.9) of a first preset pulverizer is selected to correct the rotational speed Ei of the pulverizer, the rotational speed of the pulverizer after correction is Ei 0.9, when the feeding amount B of the initial mixture is less than or equal to 50kg, a rotational speed correction coefficient h2 (0.95) of a second preset pulverizer is selected to correct the rotational speed Ei of the pulverizer, when the feeding amount B of the initial mixture is less than or equal to 60kg, the rotational speed of the pulverizer after correction is Ei 0.95, when the feeding amount B of the initial mixture is less than or equal to 60kg, a rotational speed correction coefficient h3 (1) of a third preset pulverizer is selected to correct the rotational speed Ei of the pulverizer, when the feeding amount B of the initial mixture is less than or equal to 70kg, a rotational speed correction coefficient h4 (1.1) of the fourth preset pulverizer is selected to correct the rotational speed Ei of the pulverizer, when the feeding amount B of the initial mixture is less than or equal to 80kg, a rotational speed of the pulverizer after correction is selected to be less than or equal to 1, and when the rotational speed of the pulverizer is less than or equal to 1.5 kg of the initial mixture is selected to 15. The application can reduce the energy consumption of the pulverizer and can further improve the pulverizing efficiency by correcting the rotating speed of the pulverizer.
In some embodiments of the present application, the processing module is configured to preset an air volume matrix G of the induced draft fan, and set G (G1, G2, G3, G4), where G1 is an air volume of the first preset induced draft fan, G2 is an air volume of the second preset induced draft fan, G3 is an air volume of the third preset induced draft fan, G4 is an air volume of the fourth preset induced draft fan, and G1 < G2 < G3 < G4;
the processing module is used for presetting a rotating speed matrix J of the grader, setting J (J1, J2, J3, J4 and J5), wherein J1 is the rotating speed of the first preset grader, J2 is the rotating speed of the second preset grader, J3 is the rotating speed of the third preset grader, J4 is the rotating speed of the fourth preset grader, J5 is the rotating speed of the fifth preset grader, and J1 is more than J2 and less than J3 and less than J4 and less than J5;
the processing module is also used for setting the rotating speed of the classifier according to the relation between the air quantity C of the induced draft fan and the air quantity of each preset induced draft fan:
when C is smaller than G1, selecting the rotating speed J1 of the first preset classifier as the rotating speed of the classifier;
when G1 is less than or equal to C and less than G2, selecting the rotating speed J2 of the second preset classifier as the rotating speed of the classifier;
when G2 is less than or equal to C and less than G3, selecting the rotating speed J3 of the third preset classifier as the rotating speed of the classifier;
When G3 is less than or equal to C and less than G4, selecting the rotating speed J4 of the fourth preset classifier as the rotating speed of the classifier;
and when G4 is less than or equal to C, selecting the rotating speed J5 of the fifth preset classifier as the rotating speed of the classifier.
It should be noted that, the rotational speed of the classifier will affect the granularity of the modified white carbon black, and the air volume of the induced draft fan will affect the cut particle size of the classifier, that is, the larger the air volume is, the larger the granularity of the modified white carbon black is, so the processing module in the application is also used for setting the rotational speed of the classifier according to the relation between the air volume C of the induced draft fan and the air volumes of the preset induced draft fans, wherein, the specific selection of G1, G2, G3 and G4 can be determined according to the actual situation;
specifically, the air volume G1 of the first preset induced draft fan is set to be 15 m/min, the air volume G2 of the second preset induced draft fan is set to be 20 m/min, the air volume G3 of the third preset induced draft fan is set to be 25 m/min, and the air volume G4 of the fourth preset induced draft fan is set to be 30 m/min;
setting the rotation speed J1 of the first preset classifier as 10rpm, the rotation speed J2 of the second preset classifier as 20rpm, the rotation speed J3 of the third preset classifier as 30rpm, the rotation speed J4 of the fourth preset classifier as 40rpm and the rotation speed J5 of the fifth preset classifier as 50rpm;
When the air quantity C of the induced draft fan is less than 15 m/min, the rotating speed of the classifier is set to 10rpm, when the air quantity C of the induced draft fan is less than or equal to 15m and less than 20 m/min, the rotating speed of the classifier is set to 20rpm, when the air quantity C of the induced draft fan is less than or equal to 20m and less than or equal to 25 m/min, the rotating speed of the classifier is set to 30rpm, when the air quantity C of the induced draft fan is less than or equal to 25m and less than 30 m/min, the rotating speed of the classifier is set to 40rpm, and when the air quantity C of the induced draft fan is less than or equal to 30m, the rotating speed of the classifier is set to 50rpm. According to the application, the rotating speed of the classifier is set to realize accurate regulation and control of the granularity of the white carbon black, so that the influence of the air quantity of the induced draft fan on the granularity of the modified white carbon black is effectively prevented.
In some embodiments of the present application, when the control unit controls the classifier of the impact mill to classify the pulverized mixture and obtain the modified white carbon black, the method includes:
classifying the crushed mixture according to a classifier of the impact mill, and obtaining a classified mixture;
judging whether the granularity of the grading mixture accords with a granularity threshold value, if so, judging that the grading mixture is qualified, collecting the grading mixture, and obtaining modified white carbon black;
If not, judging that the grading mixture is unqualified, and conveying the grading mixture into a pulverizer of the impact mill based on the induced draft fan for secondary pulverization.
After classification by a classifier, the qualified classified mixture was discharged from the impact mill with wind, and the modified white carbon black was obtained, and the unqualified classified mixture was subjected to secondary pulverization.
In some embodiments of the application, when conveying the classified mixture to the pulverizer of the impact mill for secondary pulverization based on the induced draft fan, the method comprises:
collecting the granularity K of the grading mixture according to the collecting module;
the processing module carries out secondary correction on the rotating speed of the pulverizer according to the particle size difference value between the particle size K of the grading mixture and the particle size threshold value P, and obtains the rotating speed of the pulverizer after the secondary correction;
and secondarily pulverizing the classified mixture based on the rotation speed of the secondarily corrected pulverizer.
In some embodiments of the application, the processing module when performing secondary correction on the rotational speed of the pulverizer according to the particle size difference between the particle size K of the classified mixture and the particle size threshold P comprises:
The processing module is used for presetting a granularity difference matrix Q, setting Q (Q1, Q2, Q3 and Q4), wherein Q1 is a first preset granularity difference, Q2 is a second preset granularity difference, Q3 is a third preset granularity difference, Q4 is a fourth preset granularity difference, and Q1 is more than Q2 and less than Q3 and less than Q4;
the processing module is used for presetting a rotational speed secondary correction coefficient matrix m of the pulverizer, setting m (m 1, m2, m3, m4 and m 5), wherein m1 is a rotational speed secondary correction coefficient of a first preset pulverizer, m2 is a rotational speed secondary correction coefficient of a second preset pulverizer, m3 is a rotational speed secondary correction coefficient of a third preset pulverizer, m4 is a rotational speed secondary correction coefficient of a fourth preset pulverizer, m5 is a rotational speed secondary correction coefficient of a fifth preset pulverizer, and m1 is more than 0.8 and less than m2 and less than m4 and less than m5 and less than 1.2;
after the processing module selects the rotation speed ei×hi of the ith preset pulverizer as the rotation speed of the pulverizer, i=1, 2,3,4,5, and further performs secondary correction on the rotation speed of the pulverizer according to the relationship between the particle size difference |k-p| between the particle size K of the classified mixture and the particle size threshold P and each preset particle size difference:
when the K-P < Q1, selecting a second correction coefficient m1 of the rotation speed of the first preset pulverizer to correct the rotation speed Ei x hi of the pulverizer, wherein the rotation speed Ei x hi m1 of the pulverizer after correction;
When Q1 is less than or equal to the L-K-P and less than Q2, selecting a rotating speed secondary correction coefficient m2 of the second preset pulverizer to correct the rotating speed Ei/h of the pulverizer, wherein the rotating speed of the pulverizer after correction is Ei/h m2;
when Q2 is less than or equal to the L-K-P and less than Q3, selecting a rotating speed secondary correction coefficient m3 of the third preset pulverizer to correct the rotating speed Ei/h of the pulverizer, wherein the rotating speed of the pulverizer after correction is Ei/h/m 3;
when Q3 is less than or equal to the L-K-P and less than Q4, selecting a rotating speed secondary correction coefficient m4 of the fourth preset pulverizer to correct the rotating speed Ei x hi of the pulverizer, wherein the rotating speed of the pulverizer after correction is Ei x hi m4;
and when Q4 is less than or equal to the |K-P|, selecting a second correction coefficient m5 of the rotating speed of the fifth preset pulverizer to correct the rotating speed Ei×hi of the pulverizer, wherein the rotating speed of the pulverizer after correction is Ei×hi m5.
It should be noted that, after the processing module in the present application selects the rotation speed Ei of the ith preset pulverizer as the rotation speed of the pulverizer, i=1, 2,3,4,5, and further performs secondary correction on the rotation speed of the pulverizer according to the relationship between the particle size difference value i K-p| between the particle size K of the classification mixture and the particle size threshold P and each preset particle size difference value, where the specific selection of Q1, Q2, Q3, Q4 may be determined according to the actual situation;
Specifically, the first preset particle size difference Q1 is set to 1.95um, the second preset particle size difference Q2 is set to 2um, the third preset particle size difference Q3 is set to 2.35um, and the fourth preset particle size difference Q4 is set to 2.75um;
setting the rotation speed secondary correction coefficient m1 of the first preset pulverizer to 0.9, setting the rotation speed secondary correction coefficient m2 of the second preset pulverizer to 0.95, setting the rotation speed secondary correction coefficient m3 of the third preset pulverizer to 1, setting the rotation speed secondary correction coefficient m4 of the fourth preset pulverizer to 1.1, and setting the rotation speed secondary correction coefficient m5 of the fifth preset pulverizer to 1.15;
when the granularity difference value I K-P I < 1.95um, selecting a rotating speed secondary correction coefficient m1 (0.9) of the first preset pulverizer to correct the rotating speed Ei/h of the pulverizer, wherein the rotating speed Ei/h of the pulverizer after correction is 0.9; when the particle size difference value of 1.95um is less than or equal to the particle size difference value of I K-P < 2um, selecting a second preset rotating speed secondary correction coefficient m2 (0.95) of the crusher to correct the rotating speed Ei hi of the crusher, wherein the rotating speed Ei hi of the crusher after correction is 0.95; when the particle size difference value of 2um is less than or equal to the particle size difference value of K-P < 2.35um, selecting a rotating speed secondary correction coefficient m3 (1) of a third preset pulverizer to correct the rotating speed Ei of the pulverizer, wherein the rotating speed Ei of the pulverizer after correction is Ei 1; when the particle size difference value of 2.35um is less than or equal to the particle size difference value of K-P < 2.75um, selecting a second correction coefficient m4 (1.1) of the rotating speed of a fourth preset pulverizer to correct the rotating speed Ei of the pulverizer, wherein the rotating speed of the pulverizer after correction is Ei 1.1; when the granularity difference value is less than or equal to 2.75um
And when K-P, selecting a second correction coefficient m5 (1.15) of the rotating speed of a fifth preset pulverizer to correct the rotating speed Ei×hi of the pulverizer, wherein the rotating speed of the pulverizer after correction is Ei×hi×1.15. The application can effectively reduce the energy consumption by carrying out secondary correction on the rotating speed of the pulverizer, and can improve the qualification rate of secondary pulverization at the same time, thereby improving the production efficiency.
The application also provides a method for removing dust by using the electric pulse dust remover, which comprises the following steps: the electric pulse dust remover removes dust attached to a filter medium by spraying compressed air, and can be provided with a plurality of groups of pulse valves according to the size of the dust remover, the pulse dust remover is controlled by the pulse control instrument or the PLC, one group of pulse valves are opened each time to remove the part of dust controlled by the pulse dust remover, the next group of pulse valves are opened after a period of time, and the next part of dust is cleaned. When dust-containing gas passes through the filter bag, dust is blocked on the outer surface of the filter bag, purified gas enters the fan through the filter bag port and is discharged from the air outlet, and the application can ensure the normal operation of the impact mill by dust removal, and the dust discharge concentration is less than or equal to 30mg/m 2 。
In summary, the control unit of the embodiment of the application carries out proportioning adjustment on the white carbon black and the modifier according to the preset proportioning rule to obtain an initial mixture, the initial mixture is conveyed into the pulverizer of the impact mill based on the induced draft fan, the control unit controls the pulverizer of the impact mill to pulverize the initial mixture to generate a pulverized mixture, and the pulverized mixture is conveyed into the classifier of the impact mill based on the induced draft fan, and the control unit controls the classifier of the impact mill to classify the pulverized mixture and obtain the modified white carbon black.
In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
Although the application has been described hereinabove with reference to embodiments, various modifications thereof may be made and equivalents may be substituted for elements thereof without departing from the scope of the application. In particular, the features of the disclosed embodiments may be combined with each other in any manner as long as there is no structural conflict, and the entire description of these combinations is not made in the present specification merely for the sake of omitting the descriptions and saving resources. Therefore, it is intended that the application not be limited to the particular embodiment disclosed, but that the application will include all embodiments falling within the scope of the appended claims.
Those of ordinary skill in the art will appreciate that: the above is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that the present invention is described in detail with reference to the foregoing embodiments, and modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A method for treating a white carbon modifier, comprising:
the control unit performs proportioning adjustment on the white carbon black and the modifier according to a preset proportioning rule to obtain an initial mixture;
delivering the initial mixture to a pulverizer of an impact mill based on an induced draft fan;
the control unit controls the pulverizer of the impact mill to pulverize the initial mixture to generate a pulverized mixture, and the pulverized mixture is conveyed into the classifier of the impact mill based on the induced draft fan;
the control unit controls the grader of the impact mill to grade the crushed mixture and obtain modified white carbon black;
The control unit includes:
the collecting module is used for collecting the feeding speed A of the initial mixture, the feeding quantity B of the initial mixture and the air quantity C of the induced draft fan;
the processing module is used for setting working state parameters of the pulverizer and the classifier according to the feeding speed A of the initial mixture, the feeding quantity B of the initial mixture and the air quantity C of the induced draft fan;
the control module is used for controlling the pulverizer and the classifier according to the working state parameters;
the processing module is used for presetting an air quantity matrix G of the induced draft fan, setting G (G1, G2, G3 and G4), wherein G1 is the air quantity of a first preset induced draft fan, G2 is the air quantity of a second preset induced draft fan, G3 is the air quantity of a third preset induced draft fan, G4 is the air quantity of a fourth preset induced draft fan, and G1 is more than G2 and less than G3 and less than G4;
the processing module is used for presetting a rotating speed matrix J of the grader, setting J (J1, J2, J3, J4 and J5), wherein J1 is the rotating speed of the first preset grader, J2 is the rotating speed of the second preset grader, J3 is the rotating speed of the third preset grader, J4 is the rotating speed of the fourth preset grader, J5 is the rotating speed of the fifth preset grader, and J1 is more than J2 and less than J3 and less than J4 and less than J5;
The processing module is also used for setting the rotating speed of the classifier according to the relation between the air quantity C of the induced draft fan and the air quantity of each preset induced draft fan:
when C is smaller than G1, selecting the rotating speed J1 of the first preset classifier as the rotating speed of the classifier;
when G1 is less than or equal to C and less than G2, selecting the rotating speed J2 of the second preset classifier as the rotating speed of the classifier;
when G2 is less than or equal to C and less than G3, selecting the rotating speed J3 of the third preset classifier as the rotating speed of the classifier;
when G3 is less than or equal to C and less than G4, selecting the rotating speed J4 of the fourth preset classifier as the rotating speed of the classifier;
and when G4 is less than or equal to C, selecting the rotating speed J5 of the fifth preset classifier as the rotating speed of the classifier.
2. The method for treating a white carbon black modifier according to claim 1, wherein,
the processing module is used for presetting a feeding speed matrix D of an initial mixture, setting D (D1, D2, D3 and D4), wherein D1 is the feeding speed of a first preset initial mixture, D2 is the feeding speed of a second preset initial mixture, D3 is the feeding speed of a third preset initial mixture, D4 is the feeding speed of a fourth preset initial mixture, and D1 is more than D2 and less than D3 and less than D4;
The processing module is used for presetting a rotating speed matrix E of the pulverizer, setting E (E1, E2, E3, E4 and E5), wherein E1 is the rotating speed of the first preset pulverizer, E2 is the rotating speed of the second preset pulverizer, E3 is the rotating speed of the third preset pulverizer, E4 is the rotating speed of the fourth preset pulverizer, E5 is the rotating speed of the fifth preset pulverizer, E1 is more than E2 and less than E3 and E4 is more than E5;
the processing module is further used for setting the rotating speed of the pulverizer according to the relation between the feeding speed A of the initial mixture and the feeding speed of each preset initial mixture:
when A < D1, selecting the rotating speed E1 of the first preset pulverizer as the rotating speed of the pulverizer;
when D1 is less than or equal to A and less than D2, selecting the rotating speed E2 of the second preset pulverizer as the rotating speed of the pulverizer;
when D2 is less than or equal to A and less than D3, selecting the rotating speed E3 of the third preset pulverizer as the rotating speed of the pulverizer;
when D3 is less than or equal to A and less than D4, selecting the rotating speed E4 of the fourth preset pulverizer as the rotating speed of the pulverizer;
and when D4 is less than or equal to A, selecting the rotating speed E5 of the fifth preset pulverizer as the rotating speed of the pulverizer.
3. The method for treating a white carbon black modifier according to claim 2, wherein,
The processing module is used for presetting a feeding amount matrix F of an initial mixture, setting F (F1, F2, F3 and F4), wherein F1 is the feeding amount of a first preset initial mixture, F2 is the feeding amount of a second preset initial mixture, F3 is the feeding amount of a third preset initial mixture, F4 is the feeding amount of a fourth preset initial mixture, and F1 is more than F2 and less than F3 and less than F4;
the processing module is used for presetting a rotational speed correction coefficient matrix h of the pulverizer, setting h (h 1, h2, h3, h4 and h 5), wherein h1 is a rotational speed correction coefficient of a first preset pulverizer, h2 is a rotational speed correction coefficient of a second preset pulverizer, h3 is a rotational speed correction coefficient of a third preset pulverizer, h4 is a rotational speed correction coefficient of a fourth preset pulverizer, h5 is a rotational speed correction coefficient of a fifth preset pulverizer, and h1 is more than 0.8 and less than h2 and h3 and less than h4 and less than h5 and less than 1.2;
after the processing module selects the rotation speed Ei of the ith preset pulverizer as the rotation speed of the pulverizer, i=1, 2,3,4,5, and corrects the rotation speed of the pulverizer according to the relation between the feeding amount B of the initial mixture and the feeding amount of each preset initial mixture:
when B is smaller than F1, selecting a rotating speed correction coefficient h1 of the first preset pulverizer to correct the rotating speed Ei of the pulverizer, wherein the rotating speed of the pulverizer after correction is Ei×h1;
When F1 is less than or equal to B and less than F2, selecting a rotating speed correction coefficient h2 of the second preset pulverizer to correct the rotating speed Ei of the pulverizer, wherein the rotating speed of the pulverizer after correction is Ei x h2;
when F2 is less than or equal to B and less than F3, selecting a rotating speed correction coefficient h3 of the third preset pulverizer to correct the rotating speed Ei of the pulverizer, wherein the rotating speed of the pulverizer after correction is Ei.h3;
when F3 is less than or equal to B and less than F4, selecting a rotation speed correction coefficient h4 of the fourth preset pulverizer to correct the rotation speed Ei of the pulverizer, wherein the rotation speed of the pulverizer after correction is Ei.h4;
and when F4 is less than or equal to B, selecting a rotation speed correction coefficient h5 of the fifth preset pulverizer to correct the rotation speed Ei of the pulverizer, wherein the rotation speed of the pulverizer after correction is Ei×h5.
4. The method for treating a white carbon black modifier according to claim 3, wherein when the control unit controls the classifier of the impact mill to classify the pulverized mixture and obtain the modified white carbon black, comprising:
classifying the crushed mixture according to a classifier of the impact mill, and obtaining a classified mixture;
judging whether the granularity of the grading mixture accords with a granularity threshold value, if so, judging that the grading mixture is qualified, collecting the grading mixture, and obtaining modified white carbon black;
If not, judging that the grading mixture is unqualified, and conveying the grading mixture into a pulverizer of the impact mill based on the induced draft fan for secondary pulverization.
5. The method for treating a white carbon modifier according to claim 4, wherein when the classified mixture is fed to the pulverizer of the impact mill based on the induced draft fan for secondary pulverization, comprising:
collecting the granularity K of the grading mixture according to the collecting module;
the processing module carries out secondary correction on the rotating speed of the pulverizer according to the particle size difference value between the particle size K of the grading mixture and the particle size threshold value P, and obtains the rotating speed of the pulverizer after the secondary correction;
and secondarily pulverizing the classified mixture based on the rotation speed of the secondarily corrected pulverizer.
6. The method according to claim 5, wherein the processing module performs the secondary correction of the rotational speed of the pulverizer according to the particle size difference between the particle size K of the classification mixture and the particle size threshold value P, comprising:
the processing module is used for presetting a granularity difference matrix Q, setting Q (Q1, Q2, Q3 and Q4), wherein Q1 is a first preset granularity difference, Q2 is a second preset granularity difference, Q3 is a third preset granularity difference, Q4 is a fourth preset granularity difference, and Q1 is more than Q2 and less than Q3 and less than Q4;
The processing module is used for presetting a rotational speed secondary correction coefficient matrix m of the pulverizer, setting m (m 1, m2, m3, m4 and m 5), wherein m1 is a rotational speed secondary correction coefficient of a first preset pulverizer, m2 is a rotational speed secondary correction coefficient of a second preset pulverizer, m3 is a rotational speed secondary correction coefficient of a third preset pulverizer, m4 is a rotational speed secondary correction coefficient of a fourth preset pulverizer, m5 is a rotational speed secondary correction coefficient of a fifth preset pulverizer, and m1 is more than 0.8 and less than m2 and less than m4 and less than m5 and less than 1.2;
after the processing module selects the rotation speed ei×hi of the ith preset pulverizer as the rotation speed of the pulverizer, i=1, 2,3,4,5, and further performs secondary correction on the rotation speed of the pulverizer according to the relationship between the particle size difference |k-p| between the particle size K of the classified mixture and the particle size threshold P and each preset particle size difference:
when the K-P < Q1, selecting a second correction coefficient m1 of the rotation speed of the first preset pulverizer to correct the rotation speed Ei x hi of the pulverizer, wherein the rotation speed Ei x hi m1 of the pulverizer after correction;
when Q1 is less than or equal to the L-K-P and less than Q2, selecting a rotating speed secondary correction coefficient m2 of the second preset pulverizer to correct the rotating speed Ei/h of the pulverizer, wherein the rotating speed of the pulverizer after correction is Ei/h m2;
When Q2 is less than or equal to the L-K-P and less than Q3, selecting a rotating speed secondary correction coefficient m3 of the third preset pulverizer to correct the rotating speed Ei/h of the pulverizer, wherein the rotating speed of the pulverizer after correction is Ei/h/m 3;
when Q3 is less than or equal to the L-K-P and less than Q4, selecting a rotating speed secondary correction coefficient m4 of the fourth preset pulverizer to correct the rotating speed Ei x hi of the pulverizer, wherein the rotating speed of the pulverizer after correction is Ei x hi m4;
and when Q4 is less than or equal to the |K-P|, selecting a second correction coefficient m5 of the rotating speed of the fifth preset pulverizer to correct the rotating speed Ei×hi of the pulverizer, wherein the rotating speed of the pulverizer after correction is Ei×hi m5.
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| CN115316116A (en) * | 2022-06-30 | 2022-11-11 | 九方泰禾国际重工(青岛)股份有限公司 | Transmission device for vertical header of corn ear and stem harvesting machine |
| CN218222754U (en) * | 2022-09-01 | 2023-01-06 | 新疆农垦科学院 | Branch crusher |
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