CN114225833A - Biomass granulator control system and method - Google Patents

Biomass granulator control system and method Download PDF

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Publication number
CN114225833A
CN114225833A CN202111576625.9A CN202111576625A CN114225833A CN 114225833 A CN114225833 A CN 114225833A CN 202111576625 A CN202111576625 A CN 202111576625A CN 114225833 A CN114225833 A CN 114225833A
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biomass
die
positive pressure
temperature
ring
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CN114225833B (en
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刘立超
汤君杰
郑泉
王韦韦
陈黎卿
王敏雪
周国安
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Anhui Agricultural University AHAU
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/22—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by pressing in moulds or between rollers
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
    • G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/10—Biofuels, e.g. bio-diesel
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

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Abstract

The invention discloses a biomass granulator control system and method, and belongs to the field of biomass granulator control. A biomass granulator control system and method are characterized in that water content of biomass particles and temperature in a biomass granulator circular mold hole are collected, positive pressure in the inner surface of the mold hole in the biomass granulator circular mold hole is collected, the positive pressure of the conical surface of the biomass granulator circular mold hole is calculated through the collected positive pressure in the inner surface of the mold hole in the biomass granulator circular mold hole, whether parameters of a biomass granulator body and processed powder during biomass particle forming are in an optimal interval or not is judged in real time, real-time control of the parameters during biomass particle forming is realized through regulation of a relevant regulation and control device, and yield is measured simultaneously; the invention effectively solves the problem that the existing biomass granulator cannot accurately adjust the biomass particle forming parameters in real time in production.

Description

Biomass granulator control system and method
Technical Field
The invention relates to the technical field of biomass granulator, in particular to a biomass granulator control system and method.
Background
As a biomass particle production machine, the performance of the biomass particle production machine determines whether high-quality biomass particles can be efficiently produced, and besides the requirement of structurally meeting the functional use requirement, parameter monitoring in production operation is also a key problem; in the biomass particle forming process, the performance of the biomass particles is influenced by a plurality of factors, such as the water content of the raw materials, the forming pressure, the forming temperature and the like; meanwhile, the annular membrane hole of the biomass granulator is abraded due to the excessively high water content, forming pressure and forming temperature, the service life of the biomass granulator is greatly shortened, and the biomass granulator which can obtain and adjust the water content of biomass particle powder in real time and adjust the forming pressure and forming temperature in the process of forming biomass particles in real time is lacked in the biomass granulator on the market at present; in order to solve the problems, the invention provides a biomass granulator control system and a biomass granulator control method.
Disclosure of Invention
The invention aims to provide a biomass granulator control system and a biomass granulator control method, which aim to solve the problems in the background technology:
the problem that the existing biomass granulator cannot monitor and adjust production parameters in the biomass particle forming process in real time.
In order to achieve the purpose, the invention adopts the following technical scheme:
a biomass granulator control system comprises a biomass granulator body, a feeding device and an electrical cabinet, wherein the biomass granulator body comprises a main motor, a scraping motor, a temperature control module, a stirring device, a weighing sensor and a material processing cylinder; the feeding device comprises an impurity removing device, a packing auger motor and a material preparing box, wherein a material feeding end of the feeding device is arranged in the material preparing box, and a water content monitoring module is also arranged in the material preparing box; the electrical cabinet is arranged on one side of the stock bin, and a controller is integrally mounted on the electrical cabinet;
the temperature control module comprises a cooling device, a pressure sensor and a temperature sensor, the cooling device is fixedly installed on an installation rack of the biomass granulator body, a ring die is fixedly installed inside the main motor, a compression roller is installed inside the ring die, die holes are formed in the side wall of the ring die, the pressure sensor is fixedly installed on a ring body between every two adjacent die holes, and the temperature sensor is embedded and installed at the edge of the top end of the ring die; the biomass granulator comprises a biomass granulator body, and is characterized in that a material processing barrel is further connected to an installation rack of the biomass granulator body, a discharge port is fixedly connected to the bottom end of the material processing barrel, a weighing platform is arranged in a blanking area below the discharge port, and a weighing sensor is fixedly installed on the weighing platform; the top end of the material processing barrel is fixedly connected with a feeding pipe, and the stirring device is fixedly arranged inside the feeding pipe; the feeding device also comprises a conveying pipe, and the impurity removing device is fixedly arranged in the tail end of one side, close to the feeding pipe, of the conveying pipe; the auger motor is fixedly arranged at the feed end of the feed delivery pipe, and the output shaft of the auger motor is fixedly connected with the feed delivery auger; moisture content monitoring module is including moisture content sensor, drying device and humidification device, moisture content sensor fixed mounting is on the inner wall of conveying pipeline, drying device fixed connection is on the interior top surface of stock chest, humidification device fixed mounting is on the inside wall of stock chest.
A control method of a biomass granulator specifically comprises the following steps:
s1, the system carries out self-checking, whether the operation condition is met or not is judged according to the self-checking condition, if yes, S2 is entered, otherwise, the system is initialized, and the system is waited for meeting the condition;
s2, setting the operation parameters of the biomass particle production after the initialization is finished;
s3, after the operation parameters are set, putting the biomass particle powder into a feeding device, collecting the water content of the biomass particle powder by using a water content sensor, and judging whether the water content of the biomass particle powder is in the optimal interval (a, b) to obtain a first working instruction;
s4, adjusting the moisture content of the biomass particle powder by using a moisture content monitoring module according to the first working instruction obtained in the S3;
s5, after the water content is adjusted, starting the biomass granulator body, starting an auger motor of a feeding device, and conveying biomass particle powder to the biomass granulator body by using the feeding device; in the material conveying process, impurity removal is carried out on the biomass particle powder through an impurity removal device of the feeding device, and the raw materials are stirred and mixed through a stirring device on the biomass granulator body before the biomass particle powder enters;
s6, collecting the temperature of the inner wall of the biomass circular mold by using a temperature sensor of the temperature control module, and judging whether the temperature of the inner wall of the biomass circular mold is in the optimal interval (c, d); if the interval (c, d) is smaller, a second working instruction is obtained, and the step S7 is entered; if the current time is greater than the interval (c, d), a third working instruction is obtained, and the step enters S9; if the interval (c, d) is within the interval (c, d), the process proceeds to S11;
s7, acquiring the positive pressure of the inner surface of the circular mold hole by using a pressure sensor according to the second working instruction obtained in the S6, calculating the positive pressure of the conical surface of the circular mold hole by using a controller, and judging whether the positive pressure of the circular mold hole and the positive pressure of the conical surface of the circular mold hole reach the maximum values e and f of pressure to obtain a fourth working instruction;
s8, adjusting the compression roller gap or the motor speed according to the fourth working command obtained in the S7, and entering S6;
s9, according to the third working instruction obtained in the S6, starting a cooling device of the temperature control module, collecting the temperature of the inner wall of the biomass circular mold through a temperature sensor of the temperature control module after 30 seconds, judging whether the temperature of the inner wall of the biomass circular mold is in an optimal interval (c, d), if so, entering S11, if not, collecting the positive pressure of the inner surface of a circular mold hole through a pressure sensor, calculating the positive pressure of the conical surface of the circular mold hole through a controller, and judging whether the positive pressure of the circular mold hole and the positive pressure of the conical surface of the circular mold hole reach the maximum values g and h of pressure to obtain a fifth working instruction;
s10, regulating the compression roller gap or the motor speed again according to the fifth work command obtained in the S9, and entering S6;
s11, measuring the total yield of the processed biomass particles by using a weighing sensor;
and S12, after the total biomass particle yield measurement work is finished, repeating the operations S3-S11 in sequence, and carrying out a new round of biomass particle treatment work.
Preferably, the moisture content measurement in S3 specifically includes the following steps:
a1, collecting the moisture content of the biomass particle powder at the auger position through a moisture content sensor fixedly arranged in a material preparation box around the feeding device;
a2, when the feeding device works, moisture content information acquired by the moisture content sensor in A1 in real time is transmitted to the moisture content monitoring module.
Preferably, the adjusting of the water content in S4 specifically includes the following steps:
b1, if the measured water content value is in the interval (a, B), the drying device and the humidifying device of the drying module do not operate;
b2, if the measured water content value is lower than the interval (a, B), the humidifying device 17 is operated to humidify the biomass particle powder;
b3, if the measured water content value is larger than the interval (a, B), the drying device 16 works to heat and dry the biomass particle powder.
Preferably, the temperature measurement in S6 specifically includes the following steps:
c1, collecting the temperature of the inner wall of the circular mould hole through an AT probe of a temperature sensor fixedly embedded in the inner wall of the circular mould hole;
c2, when the biomass granulator body 1 works, the temperature information of the inner wall of the die hole of the ring die 21, which is acquired by the temperature sensor 13 in C1 in real time, is transmitted to the temperature control module in real time.
Preferably, the pressure measurement in S7 or S9 specifically includes the following steps:
d1, collecting the positive pressure of the inner surface of the inner wall of the die hole through a pressure sensor 12 fixedly arranged on the ring body between the upper die holes of the ring die 21;
d2, when the biomass granulator body works, calculating the conical surface positive pressure of the circular mold according to the positive pressure information of the inner surface of the circular mold upper mold hole obtained by the pressure sensor in D1 in real time, wherein the calculation formula is as follows:
Figure BDA0003425363200000051
Figure BDA0003425363200000052
f1＝μN1……(3)
f2＝μN2……(4)
in the formula: n is a radical of1The pressure is the positive pressure of the conical surface of the die hole; n is a radical of2The pressure is positive pressure inside the die hole; f is extrusion force; l is1Is the length of the feed chamber; l is2Is the molding cavity length; beta is the opening cone angle of the feeding cavity; f. of1Friction force of the conical surface; f. of2Friction force of the inner surface of the die hole; d1Is the diameter of the feed inlet; d2Is the inner diameter of the die hole; λ is the transmission coefficient; μ is the coefficient of friction.
Preferably, the pressure control mentioned in S8 specifically includes the following steps:
e1, if the measured positive pressure of the inner surface of the inner wall of the ring die hole is smaller than the maximum value E, and the positive pressure of the conical surface of the ring die hole is calculated to be smaller than the maximum value f, increasing the press roll gap;
e2, if the measured positive pressure of the inner surface of the inner wall of the ring die hole is larger than the maximum value E, or the positive pressure of the conical surface of the ring die hole is calculated to be larger than the maximum value f, the rotating speed of the motor is increased proportionally.
Preferably, the temperature control mentioned in S9 specifically includes the following steps:
f1, if the measured temperature of the inner wall of the ring die hole is in the optimal interval (c, d), the cooling device of the temperature control module does not act;
f2, if the measured inner wall temperature of the ring die hole is larger than the optimal interval (c, d), starting the cooling device, and judging whether the inner wall temperature of the ring die hole is in the optimal interval (c, d) again after 30 seconds.
Preferably, the pressure control mentioned in S10 specifically includes the following steps:
g1, if the positive pressure of the inner surface of the inner wall of the die hole of the measured ring die (21) is greater than the minimum value G, and the positive pressure of the conical surface of the die hole of the ring die is calculated to be greater than the minimum value h, reducing the press roll gap;
g2, if the measured positive pressure of the inner surface of the inner wall of the ring die hole is smaller than the minimum value G, or the positive pressure of the conical surface of the ring die hole is calculated to be smaller than the minimum value h, reducing the rotating speed of the motor.
Preferably, the yield measurement mentioned in S11 specifically includes the following steps:
h1, acquiring the weight of biomass particles in a blanking area in real time through a weighing sensor fixedly installed at the bottom of the blanking area of the biomass granulator body;
h2, when the biomass granulator body works, acquiring total biomass particle yield information measured in H1 in real time.
Compared with the prior art, the invention provides a biomass granulator control system and method, which have the following beneficial effects:
the biomass granulator control system and the method provided by the invention change the existing biomass granulator control mode, and adjust the water content of the powder in real time by measuring the water content of biomass particle powder; and measuring the temperature of the inner wall of the circular mold hole and the positive pressure of the inner surface of the inner wall of the circular mold hole, and calculating the positive pressure of the conical surface of the circular mold hole by using a controller to adjust the temperature and the gap of the compression roller of the biomass granulator and the rotating speed of the motor in real time.
Drawings
FIG. 1 is a schematic structural diagram of a biomass granulator control system according to the present invention;
FIG. 2 is a schematic diagram of a ring mold structure of a biomass granulator control system according to the present invention;
FIG. 3 is a schematic flow chart of a biomass granulator control method according to the present invention;
fig. 4 is a schematic diagram of a controller principle of a biomass granulator control method according to the present invention.
Reference numbers in the figures:
1. a biomass granulator body; 2. a feeding device; 3. an electrical cabinet; 5. a stirring device; 6. a weighing sensor; 8. an impurity removal device; 9. a packing auger motor; 10. a controller; 11. a cooling device; 12. a pressure sensor; 13. a temperature sensor; 15. a water content sensor; 16. a drying device; 17. a humidifying device; 18. preparing a material box; 19. a main motor; 20. a scraping motor; 21. and (5) ring molding.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1:
referring to fig. 1-4, a biomass granulator control system includes a biomass granulator body 1, a feeding device 2 and an electrical cabinet 3, wherein the biomass granulator body 1 includes a main motor 19, a scraping motor 20, a temperature control module, a stirring device 5, a weighing sensor 6 and a material processing cylinder; the feeding device 2 comprises an impurity removing device 8, a packing auger motor 9 and a stock bin 18, the material feeding end of the feeding device 2 is arranged in the stock bin 18, and a moisture content monitoring module is also arranged in the stock bin 18; the electrical cabinet 3 is arranged at one side of the stock bin 18, and the controller 10 is integrally installed on the electrical cabinet 3;
the temperature control module comprises a cooling device 11, a pressure sensor 12 and a temperature sensor 13, the cooling device 11 is fixedly installed on an installation rack of the biomass granulator body 1, a ring die 21 is fixedly installed inside a main motor 19, a compression roller is installed inside the ring die 21, die holes are formed in the side wall of the ring die 21, the pressure sensor 12 is fixedly installed on a ring body between every two adjacent die holes, and the temperature sensor 13 is installed at the edge of the top end of the ring die 21 in an embedded mode; the biomass granulator comprises a biomass granulator body 1, and is characterized in that a material treatment barrel is further connected to an installation rack of the biomass granulator body 1, a discharge port is fixedly connected to the bottom end of the material treatment barrel, a weighing platform is arranged in a blanking area below the discharge port, and a weighing sensor 6 is fixedly installed on the weighing platform; the top end of the material processing cylinder is fixedly connected with a feeding pipe, and the stirring device 5 is fixedly arranged inside the feeding pipe; the feeding device 2 also comprises a material conveying pipe, and the impurity removing device 8 is fixedly arranged inside the tail end of one side of the material conveying pipe close to the material inlet pipe; the packing auger motor 9 is fixedly arranged at the feed end of the feed delivery pipe, and the output shaft of the packing auger motor 9 is fixedly connected with a feed delivery packing auger; moisture content monitoring module is including moisture content sensor 15, drying device 16 and humidification device 17, and moisture content sensor 15 fixed mounting is on the inner wall of conveying pipeline, and drying device 16 fixed connection is on the interior top surface of stock chest 18, and humidification device 17 fixed mounting is on the inside wall of stock chest 18.
A control method of a biomass granulator specifically comprises the following steps:
s1, the system carries out self-checking, whether the operation condition is met or not is judged according to the self-checking condition, if yes, S2 is entered, otherwise, the system is initialized, and the system is waited for meeting the condition;
s2, setting the operation parameters of the biomass particle production after the initialization is finished;
s3, after the operation parameters are set, putting the biomass particle powder into a feeding device, collecting the water content of the biomass particle powder by using a water content sensor, and judging whether the water content of the biomass particle powder is in the optimal interval (a, b) to obtain a first working instruction;
the moisture content measurement mentioned in S3 specifically includes the following steps:
a1, collecting the moisture content of the biomass particle powder at the auger position through a moisture content sensor 15 fixedly arranged in a material preparation box 18 around the feeding device 2;
a2, when the feeding device 2 works, the moisture content information acquired by the moisture content sensor in A1 in real time is transmitted to a moisture content monitoring module;
s4, adjusting the moisture content of the biomass particle powder by using a moisture content monitoring module according to the first working instruction obtained in the S3;
the water content adjustment method mentioned in the S4 specifically comprises the following steps:
b1, if the measured water content value is in the interval (a, B), the drying device 16 and the humidifying device 17 of the drying module do not operate;
b2, if the measured water content value is lower than the interval (a, B), the humidifying device 17 is operated to humidify the biomass particle powder;
b3, if the measured water content value is larger than the interval (a, B), the drying device 16 works to heat and dry the biomass particle powder;
s5, after the water content is adjusted, starting the biomass granulator body 1, starting an auger motor of a feeding device, and conveying biomass particle powder to the biomass granulator body 1 by using the feeding device; in the material conveying process, impurity removal is carried out on the biomass particle powder through an impurity removal device 8 of the feeding device, and the raw materials are stirred and mixed through a stirring device 5 on the biomass granulator body 1 before the biomass particle powder enters;
s6, collecting the temperature of the inner wall of the biomass circular mold 21 by using the temperature sensor 13 of the temperature control module, and judging whether the temperature of the inner wall of the biomass circular mold 21 is in the optimal interval (c, d); if the interval (c, d) is smaller, a second working instruction is obtained, and the step S7 is entered; if the current time is greater than the interval (c, d), a third working instruction is obtained, and the step enters S9; if the interval (c, d) is within the interval (c, d), the process proceeds to S11;
the temperature measurement mentioned in S6 specifically includes the following steps:
c1, collecting the temperature of the inner wall of the die hole of the ring die 21 through an AT probe of the temperature sensor 13 which is fixedly embedded in the inner wall of the die hole of the ring die 21;
c2, when the biomass granulator body 1 works, transmitting the temperature information of the inner wall of the die hole of the ring die 21, which is acquired by the temperature sensor 13 in C1 in real time, to the temperature control module in real time;
s7, acquiring the positive pressure of the inner surface of the die hole of the ring die 21 by using the pressure sensor 12 according to the second working instruction obtained in S6, calculating the positive pressure of the conical surface of the die hole of the ring die 21 by using the controller 10, and judging whether the positive pressure of the die hole of the ring die 21 and the positive pressure of the conical surface of the die hole of the ring die 21 reach the maximum values e and f of the pressure to obtain a fourth working instruction;
s8, adjusting the compression roller gap or the motor speed according to the fourth working command obtained in the S7, and entering S6;
the pressure control in S8 specifically includes the following steps:
e1, if the positive pressure of the inner surface of the inner wall of the die hole of the ring die 21 is smaller than the maximum value E and the positive pressure of the conical surface of the die hole of the ring die 21 is smaller than the maximum value f through calculation, increasing the press roll gap;
e2, if the positive pressure of the inner surface of the inner wall of the die hole of the ring die 21 is larger than the maximum value E, or the positive pressure of the conical surface of the die hole of the ring die 21 is calculated to be larger than the maximum value f, the rotating speed of the motor is increased proportionally;
s9, according to the third working instruction obtained in S6, starting a cooling device 11 of the temperature control module, collecting the temperature of the inner wall of the biomass circular mold 21 through a temperature sensor 13 of the temperature control module after 30 seconds, judging whether the temperature of the inner wall of the biomass circular mold 21 is in an optimal interval (c, d), if the temperature is in the optimal interval, entering S11, if the temperature is not in the optimal interval, utilizing a pressure sensor (12) to collect the positive pressure of the inner surface of a mold hole of the circular mold 21, calculating the positive pressure of the conical surface of the mold hole of the circular mold 21 through a controller 10, and judging whether the positive pressure of the mold hole of the circular mold 21 and the positive pressure of the conical surface of the mold hole of the circular mold 21 reach the maximum values g and h of the pressure to obtain a fifth working instruction;
the temperature control in S9 specifically includes the following steps:
f1, if the temperature of the inner wall of the die hole of the ring die 21 is in the optimal interval (c, d), the cooling device 11 of the temperature control module does not act;
f2, if the measured temperature of the inner wall of the die hole of the ring die 21 is greater than the optimal interval (c, d), starting the cooling device 11, and judging whether the temperature of the inner wall of the die hole of the ring die 21 is within the optimal interval (c, d) again after 30 seconds;
pressure measurement in S7 or S9 specifically comprises the following steps:
d1, collecting the positive pressure of the inner surface of the inner wall of the die hole through a pressure sensor 12 fixedly arranged on the ring body between the upper die holes of the ring die 21;
d2, when the biomass granulator body 1 works, calculating the conical surface positive pressure of the annular die 21 according to the positive pressure information of the inner surface of the annular die 21 inner wall obtained by the pressure sensor 12 in D1 in real time, wherein the calculation formula is as follows:
Figure BDA0003425363200000121
Figure BDA0003425363200000122
f1＝μN1……(3)
f2＝μN2……(4)
in the formula: n is a radical of1The pressure is the positive pressure of the conical surface of the die hole; n is a radical of2The pressure is positive pressure inside the die hole; f is extrusion force; l is1Is the length of the feed chamber; l is2Is the molding cavity length; beta is the opening cone angle of the feeding cavity; f. of1Friction force of the conical surface; f. of2Friction force of the inner surface of the die hole; d1Is the diameter of the feed inlet; d2Is the inner diameter of the die hole; λ is the transmission coefficient; mu is coefficient of friction
S10, regulating the compression roller gap or the motor speed again according to the fifth work command obtained in the S9, and entering S6;
the pressure control in S10 specifically includes the following steps:
g1, if the positive pressure of the inner surface of the inner wall of the die hole of the ring die 21 is greater than the minimum value G, and the positive pressure of the conical surface of the die hole of the ring die 21 is calculated to be greater than the minimum value h, reducing the press roll gap;
g2, if the measured positive pressure of the inner surface of the inner wall of the die hole of the ring die 21 is smaller than the minimum value G, or the positive pressure of the conical surface of the die hole of the ring die 21 is calculated to be smaller than the minimum value h, reducing the rotating speed of the motor;
s11, measuring the total yield of the processed biomass particles by using the weighing sensor 6;
the yield measurement mentioned in S11 specifically includes the following steps:
h1, acquiring the weight of biomass particles in a blanking area in real time through a weighing sensor 6 fixedly installed at the bottom of the blanking area of the biomass granulator body 1;
h2, when the biomass granulator body 1 works, acquiring total biomass particle yield information measured in H1 in real time;
and S12, after the total biomass particle yield measurement work is finished, repeating the operations S3-S11 in sequence, and carrying out a new round of biomass particle treatment work.
The biomass granulator control system and the method provided by the invention change the existing biomass granulator control mode, and adjust the water content of the powder in real time by measuring the water content of biomass particle powder; and measuring the temperature of the inner wall of the die hole of the ring die 21 and the positive pressure of the inner surface of the die hole of the ring die 21, and calculating the positive pressure of the conical surface of the die hole of the ring die 21 by using the controller 10 to adjust the temperature, the gap and the rotating speed of the motor of the biomass granulator in real time.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims (10)

1. The biomass granulator control system is characterized by comprising a biomass granulator body (1), a feeding device (2) and an electric cabinet (3), wherein the biomass granulator body (1) comprises a main motor (19), a scraping motor (20), a temperature control module, a stirring device (5), a weighing sensor (6) and a material processing cylinder; the feeding device (2) comprises an impurity removing device (8), a packing auger motor (9) and a stock bin (18), the material feeding end of the feeding device (2) is arranged in the stock bin (18), and a moisture content monitoring module is further arranged in the stock bin (18); the electric cabinet (3) is arranged on one side of the stock bin (18), and a controller (10) is integrally installed on the electric cabinet (3);
the temperature control module comprises a cooling device (11), a pressure sensor (12) and a temperature sensor (13), the cooling device (11) is fixedly installed on an installation rack of the biomass granulator body (1), a ring die (21) is fixedly installed inside the main motor (19), a compression roller is installed inside the ring die (21), die holes are formed in the side wall of the ring die (21), the pressure sensor (12) is fixedly installed on a ring body between every two adjacent die holes, and the temperature sensor (13) is installed at the edge of the top end of the ring die (21) in an embedded mode; the biomass granulator is characterized in that a material processing barrel is further connected to the mounting rack of the biomass granulator body (1), a discharge port is fixedly connected to the bottom end of the material processing barrel, a weighing platform is arranged in a blanking area below the discharge port, and a weighing sensor (6) is fixedly mounted on the weighing platform; the top end of the material processing barrel is fixedly connected with a feeding pipe, and the stirring device (5) is fixedly arranged inside the feeding pipe; the feeding device (2) further comprises a material conveying pipe, and the impurity removing device (8) is fixedly arranged inside the tail end of one side, close to the material inlet pipe, of the material conveying pipe; the packing auger motor (9) is fixedly arranged at the feed end of the feed delivery pipe, and the output shaft of the packing auger motor (9) is fixedly connected with a feed delivery packing auger; moisture content monitoring module is including moisture content sensor (15), drying device (16) and humidification device (17), moisture content sensor (15) fixed mounting is on the inner wall of conveying pipeline, drying device (16) fixed connection is on the interior top surface of stock chest (18), humidification device (17) fixed mounting is on the inside wall of stock chest (18).
2. The biomass granulator control method of claim 1, comprising the steps of:
s1, the system carries out self-checking, whether the operation condition is met or not is judged according to the self-checking condition, if yes, S2 is entered, otherwise, the system is initialized, and the system is waited for meeting the condition;
s2, setting the operation parameters of the biomass particle production after the initialization is finished;
s3, after the operation parameters are set, putting the biomass particle powder into a feeding device, collecting the water content of the biomass particle powder by using a water content sensor, and judging whether the water content of the biomass particle powder is in the optimal interval (a, b) to obtain a first working instruction;
s4, adjusting the moisture content of the biomass particle powder by using a moisture content monitoring module according to the first working instruction obtained in the S3;
s5, after the water content is adjusted, starting the biomass granulator body (1), starting an auger motor of a feeding device, and conveying biomass particle powder to the biomass granulator body (1) by using the feeding device; in the material conveying process, impurity removal is carried out on biomass particle powder through an impurity removal device (8) of a feeding device, and the raw materials are stirred and mixed through a stirring device (5) on a biomass granulator body (1) before the biomass particle powder enters;
s6, collecting the temperature of the inner wall of the biomass circular mold (21) by using a temperature sensor (13) of the temperature control module, and judging whether the temperature of the inner wall of the biomass circular mold (21) is in the optimal interval (c, d); if the interval (c, d) is smaller, a second working instruction is obtained, and the step S7 is entered; if the current time is greater than the interval (c, d), a third working instruction is obtained, and the step enters S9; if the interval (c, d) is within the interval (c, d), the process proceeds to S11;
s7, collecting the positive pressure of the inner surface of the die hole of the ring die (21) by using the pressure sensor (12) according to the second working instruction obtained in the S6, calculating the positive pressure of the conical surface of the die hole of the ring die (21) through the controller (10), and judging whether the positive pressure of the die hole of the ring die (21) and the positive pressure of the conical surface of the die hole of the ring die (21) reach the maximum values e and f of the pressure to obtain a fourth working instruction;
s8, adjusting the compression roller gap or the motor speed according to the fourth working command obtained in the S7, and entering S6;
s9, according to the third working instruction obtained in the S6, starting a cooling device (11) of the temperature control module, collecting the temperature of the inner wall of the biomass ring mold (21) through a temperature sensor (13) of the temperature control module after 30 seconds, judging whether the temperature of the inner wall of the biomass ring mold (21) is in an optimal interval (c, d), if the temperature is in the optimal interval, entering S11, if the temperature is not in the optimal interval, collecting the positive pressure of the inner surface of a mold hole of the ring mold (21) through a pressure sensor (12), calculating the positive pressure of the conical surface of the mold hole of the ring mold (21) through a controller (10), judging whether the positive pressure of the mold hole of the ring mold (21) and the positive pressure of the conical surface of the mold hole of the ring mold (21) reach the maximum values g and h of pressure, and obtaining a fifth working instruction;
s10, regulating the compression roller gap or the motor speed again according to the fifth work command obtained in the S9, and entering S6;
s11, measuring the total yield of the treated biomass particles by using a weighing sensor (6);
and S12, after the total biomass particle yield measurement work is finished, repeating the operations S3-S11 in sequence, and carrying out a new round of biomass particle treatment work.
3. The biomass granulator control method according to claim 2, wherein the moisture content measurement in S3 specifically comprises the following steps:
a1, collecting the moisture content of the biomass particle powder at the auger position through a moisture content sensor (15) fixedly arranged in a material preparation box (18) around the feeding device (2);
and when the A2 and the feeding device (2) work, the moisture content information acquired by the moisture content sensor in the A1 in real time is transmitted to the moisture content monitoring module.
4. The biomass granulator control method according to claim 2, wherein the water content adjustment in S4 specifically comprises the following steps:
b1, if the measured water content value is in the interval (a, B), the drying device (16) and the humidifying device (17) of the drying module do not operate;
b2, if the measured water content value is lower than the interval (a, B), the humidifying device (17) is operated to humidify the biomass particle powder;
b3, if the measured water content value is larger than the interval (a, B), the drying device (16) works to heat and dry the biomass particle powder.
5. The biomass granulator control method according to claim 2, wherein the temperature measurement in S6 specifically comprises the following steps:
c1, collecting the temperature of the inner wall of the die hole of the ring die (21) by an AT probe of a temperature sensor (13) which is fixedly embedded in the inner wall of the die hole of the ring die (21);
c2, when the biomass granulator body (1) works, the temperature information of the inner wall of the die hole of the ring die (21), which is acquired by the temperature sensor (13) in C1 in real time, is transmitted to the temperature control module in real time.
6. The biomass granulator control method of claim 2, wherein the pressure measurement in S7 or S9 comprises the following steps:
d1, collecting the inner surface positive pressure of the inner wall of the die hole through a pressure sensor (12) fixedly arranged on a ring body between the upper die holes of the ring die (21);
d2, when the biomass granulator body (1) works, calculating the positive pressure of the conical surface of the die hole of the ring die (21) according to the positive pressure information of the inner surface of the die hole of the ring die (21) acquired by the pressure sensor (12) in D1 in real time, wherein the calculation formula is as follows:
Figure FDA0003425363190000051
Figure FDA0003425363190000052
f1＝μN1……(3)
f2＝μN2……(4)
in the formula: n is a radical of1The pressure is the positive pressure of the conical surface of the die hole; n is a radical of2The pressure is positive pressure inside the die hole; f is extrusion force; l is1Is the length of the feed chamber; l is2Is the molding cavity length; beta is the opening cone angle of the feeding cavity; f. of1Friction force of the conical surface; f. of2Friction force of the inner surface of the die hole; d1Is the diameter of the feed inlet; d2Is the inner diameter of the die hole; λ is the transmission coefficient; μ is the coefficient of friction.
7. The biomass granulator control method according to claim 2, wherein the pressure control in S8 specifically comprises the following steps:
e1, if the positive pressure of the inner surface of the inner wall of the die hole of the measured ring die (21) is smaller than the maximum value E, and the positive pressure of the conical surface of the die hole of the ring die (21) is calculated to be smaller than the maximum value f, increasing the press roll gap;
e2, if the positive pressure of the inner surface of the inner wall of the die hole of the measured ring die (21) is larger than the maximum value E, or the positive pressure of the conical surface of the die hole of the measured ring die (21) is calculated to be larger than the maximum value f, the rotating speed of the motor is increased proportionally.
8. The biomass granulator control method according to claim 2, wherein the temperature control in S9 specifically comprises the following steps:
f1, if the temperature of the inner wall of the die hole of the measured ring die (21) is in the optimal interval (c, d), the cooling device (11) of the temperature control module does not act;
f2, if the measured temperature of the inner wall of the die hole of the ring die (21) is larger than the optimal interval (c, d), starting the cooling device (11), and judging whether the temperature of the inner wall of the die hole of the ring die (21) is in the optimal interval (c, d) again after 30 seconds.
9. The biomass granulator control method according to claim 2, wherein the pressure control in S10 specifically comprises the following steps:
g1, if the positive pressure of the inner surface of the inner wall of the die hole of the measured ring die (21) is greater than the minimum value G, and the positive pressure of the conical surface of the die hole of the ring die (21) is calculated to be greater than the minimum value h, reducing the press roll gap;
g2, if the positive pressure of the inner surface of the inner wall of the die hole of the measured ring die (21) is smaller than the minimum value G, or the positive pressure of the conical surface of the die hole of the measured ring die (21) is calculated to be smaller than the minimum value h, the rotating speed of the motor is reduced.
10. The biomass granulator control method according to claim 2, wherein the yield measurement in S11 comprises the following steps:
h1, acquiring the weight of biomass particles in a blanking area in real time through a weighing sensor (6) fixedly installed at the bottom of the blanking area of the biomass granulator body (1);
h2, when the biomass granulator body (1) works, acquiring total biomass particle yield information measured in H1 in real time.
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