CN109870975A - A kind of intelligence system being carbonized for controlling greasy filth pyrolysis - Google Patents
A kind of intelligence system being carbonized for controlling greasy filth pyrolysis Download PDFInfo
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- CN109870975A CN109870975A CN201910239472.5A CN201910239472A CN109870975A CN 109870975 A CN109870975 A CN 109870975A CN 201910239472 A CN201910239472 A CN 201910239472A CN 109870975 A CN109870975 A CN 109870975A
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- 238000000197 pyrolysis Methods 0.000 title claims abstract description 35
- 238000003763 carbonization Methods 0.000 claims abstract description 29
- 238000001035 drying Methods 0.000 claims abstract description 12
- 238000007599 discharging Methods 0.000 claims abstract description 9
- 239000010802 sludge Substances 0.000 claims description 62
- 238000003860 storage Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 48
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
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Abstract
The present invention provides a kind of for controlling the intelligence system of greasy filth pyrolysis carbonization.The intelligence system includes: discharging control module, conveying control module, drying control module, pyrolysis detection module and intelligent control center；Wherein, the discharging control module is connected with the intelligent controller center, to control the amount of the be equipped with greasy filth of charging gear；The conveying control module is connected with the intelligent control center, to control the conveying device of greasy filth；The drying control module is connected with the intelligent control center, to control dryer work；The intelligent control center is set to inside the intelligence system, to intelligent control modules.The present invention realizes the intelligent control to greasy filth pyrolysis carbonization system, so that the system has the characteristics that easily controllable, easy to operate and stable operation by controlling modules by intelligent control center.
Description
Technical Field
The invention relates to the technical field of intelligent systems, in particular to an intelligent system for controlling pyrolysis and carbonization of oil sludge.
Background
At present, oil sludge is generated in the production process of an oil field, the processes of crude oil extraction, storage, gathering and transportation, processing and crude oil produced liquid treatment. The dirty oil is mainly divided into: oil sludge falling to the ground, tank cleaning oil sludge, floating slag and the like. The oily sludge occupies a large amount of cultivated land and pollutes the surrounding environment, and the generated toxic substances are absorbed and enriched by animals and plants and transferred by food chains to finally harm human health. Meanwhile, the oil content in the oil sludge is high, which is a precious resource in waste, and if the oil sludge is not recycled, great resource waste is caused. Traditional fatlute pyrolysis system is the artificial system, according to manual operation, realizes the pyrolysis carbonization to fatlute, but the pyrolysis carbonization system of manual control fatlute, and the cost is along with low, but consumes the time overlength, and the operation is inconvenient, controls inconveniently, and fatlute pyrolysis is incomplete.
Disclosure of Invention
In view of this, the invention provides an intelligent system for controlling pyrolysis and carbonization of oil sludge, and aims to solve the problem that the conventional oil sludge pyrolysis and carbonization system is inconvenient to control.
In one aspect, the present invention provides an intelligent system for controlling pyrolysis and carbonization of oil sludge, comprising: the system comprises a discharging control module, a conveying control module, a drying control module, a pyrolysis detection module and an intelligent control center; wherein,
the unloading control module is connected with the intelligent controller center and used for controlling the amount of the oil sludge filled in the feeding device;
the conveying control module is connected with the intelligent control center and is used for controlling a conveying device of the oil sludge;
the drying control module is connected with the intelligent control center and used for controlling the dryer to work;
the intelligent control center is arranged in the intelligent system and used for intelligently controlling each module.
Further, in the above intelligent system for controlling pyrolysis and carbonization of oil sludge, the unloading control module includes: the system comprises a first pressure sensor, a first servo driver, a pneumatic electromagnetic valve and a cylinder; wherein,
the first pressure sensor is connected with the feeding device and used for sensing a pressure signal of oil sludge contained in the feeding device and converting the pressure signal into an electric signal;
the first servo driver is connected with the first pressure sensor and used for amplifying the electric signal sent by the first pressure sensor and transmitting the electric signal to the intelligent control center;
the pneumatic electromagnetic valve is connected with the intelligent control center and used for controlling the action of the air cylinder according to the instruction given by the intelligent control center;
the cylinder is connected with the pneumatic electromagnetic valve and used for controlling the opening and closing of the discharge door of the storage bin.
Further, in the above intelligent system for controlling pyrolysis and carbonization of oil sludge, the transportation control module includes: the system comprises a first servo motor, a second servo driver and a second pressure sensor; wherein,
the first servo motor is connected with the oil sludge conveying device and used for providing power for the oil sludge conveying device;
the second pressure sensor is connected with the oil sludge conveying device and used for sensing pressure signals of the oil sludge contained in the oil sludge conveying device and converting the pressure signals into electric signals;
and the second servo driver is connected with the second pressure sensor and used for amplifying the electric signal sent by the second pressure sensor and transmitting the electric signal to the intelligent control center.
Further, in the above intelligent system for controlling pyrolysis and carbonization of oil sludge, the intelligent control center receives the electric signal from the second servo driver, analyzes the electric signal, and sends an instruction to the second servo driver according to an analysis result.
Further, in the intelligent system for controlling pyrolysis and carbonization of oil sludge, the second servo driver controls the first servo motor to work according to an instruction sent by the intelligent control center.
Further, in the above intelligent system for controlling pyrolysis and carbonization of oil sludge, the drying control module includes: the humidity sensor, the humidity transmitter, the third servo driver and the second servo motor; the humidity sensor is arranged in the dryer and used for sensing a humidity signal of oil sludge in the dryer and transmitting the humidity signal to the humidity transmitter;
the humidity transmitter is connected with the intelligent control center and used for converting the humidity signal of the humidity sensor into an electric signal and transmitting the electric signal to the intelligent control center.
Further, in the above intelligent system for controlling pyrolysis and carbonization of oil sludge, the intelligent control center analyzes the electrical signal transmitted by the humidity transmitter, and sends an instruction to the third servo driver.
Further, in the above intelligent system for controlling pyrolysis and carbonization of oil sludge, the third servo driver is connected to the second servo motor, and is configured to control the second servo motor according to an instruction sent by the intelligent control center.
Further, in the above intelligent system for controlling pyrolysis and carbonization of oil sludge, the second servo motor is connected to the dryer and is used for providing power for the dryer.
Compared with the prior art, the intelligent system for controlling the pyrolysis and carbonization of the oil sludge provided by the invention has the beneficial effects that the intelligent control center controls each module to realize the intelligent control of the oil sludge pyrolysis and carbonization system, so that the system has the characteristics of easiness in control, simplicity in operation and stability in operation.
Further, the invention, by using the servo motor, is accurate: closed-loop control of position, speed and torque is realized; the problem that the stepping motor is out of step is solved; at the rotational speed: the high-speed performance is good, and the normal rated rotating speed can reach 2000-3000 revolutions; in adaptability: the overload resistance is strong, and the load which is three times of the rated torque can be borne; in terms of stability: the low-speed running is stable, and the stepping running phenomenon similar to that of a stepping motor cannot be generated during the low-speed running; in timeliness: the dynamic corresponding time of the acceleration and deceleration of the motor is short, and is generally within tens of milliseconds; in terms of comfort: the heat generation and noise are significantly reduced relative to other types of motors.
Furthermore, the servo feeding system is used, so that the positioning precision of the system is high, the feeding transition process time is shortened, the signal response is fast, the profile transition error is reduced, and the reliability is high.
Furthermore, the invention ensures the stability of the feeding device by controlling the opening and closing of the discharging door of the discharging bin by using the cylinder, and avoids the problem of reduced service life of the feeding device caused by excessive materials.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of a discharge control module provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a conveying control module according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a drying control module according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 to 3, an intelligent system for controlling pyrolysis and carbonization of oil sludge according to an embodiment of the present invention includes: the device comprises a discharging control module, a conveying control module, a drying control module, a pyrolysis detection module and a PLC control center; the unloading control module is connected with the center of the intelligent controller and used for controlling the amount of the oil sludge contained in the feeding device; the conveying control module is connected with a PLC control center and used for controlling the oil sludge conveying device; the drying control module is connected with the PLC control center and used for controlling the dryer to work; the PLC control center is arranged in the intelligent system and used for intelligently controlling each module.
It can be understood that the present embodiment does not limit the type of the PLC control center, and may be, for example: PLC controller and single chip controller etc. only need can indirectly receive the signal that each sensor sent to each control module send the instruction can.
Specifically, the discharge control module includes: the system comprises a first pressure sensor, a first servo driver, a pneumatic electromagnetic valve and a cylinder; the first pressure sensor is connected with the feeding device and used for sensing a pressure signal of oil sludge contained in the feeding device and converting the pressure signal into an electric signal; the first servo driver is connected with the first pressure sensor and used for amplifying the electric signal sent by the first pressure sensor and transmitting the electric signal to the PLC control center; the pneumatic electromagnetic valve is connected with the PLC control center and used for controlling the action of the air cylinder according to the instruction given by the PLC control center; the cylinder is connected with the pneumatic electromagnetic valve and used for controlling the opening and closing of the discharge door of the storage bin. The conveyance control module includes: the system comprises a first servo motor, a second servo driver and a second pressure sensor; the first servo motor is connected with the conveying device of the oil sludge and used for providing power for the conveying device of the oil sludge; the second pressure sensor is connected with the oil sludge conveying device and used for sensing a pressure signal of the oil sludge contained in the oil sludge conveying device and converting the pressure signal into an electric signal; one side of the second servo driver is connected with the second pressure sensor, and the other side of the second servo driver is connected with the PLC control center, so that the electric signal sent by the second pressure sensor is amplified and transmitted to the PLC control center; and the first servo motor is controlled according to the instruction sent by the intelligent center. The drying control module comprises: the humidity sensor, the humidity transmitter, the third servo driver and the second servo motor; the humidity sensor is arranged in the dryer and used for sensing a humidity signal of oil sludge in the dryer and transmitting the humidity signal to the humidity transmitter; the humidity transmitter is connected with the PLC control center and used for converting a humidity signal of the humidity sensor into an electric signal and transmitting the electric signal to the PLC control center; the third servo driver is connected with the second servo motor and used for controlling the second servo motor according to an instruction sent by the PLC control center; and the second servo motor is connected with the dryer and used for providing power for the dryer.
It can be understood that, in this embodiment, the number of motors in each control module is not limited, and only needs to be configured according to specific engineering requirements; in particular, in this embodiment, the control range of the PLC control center is not limited, and each command can be controlled according to the engineering requirement.
With reference to fig. 1 to fig. 3, the specific working process of the present embodiment is as follows: the first pressure sensor senses the weight of oil sludge contained in the feeding device, converts a sensing signal into a weak electric signal, and transmits the weak electric signal to the first servo driver, the first servo driver amplifies the received electric signal and transmits the amplified electric signal to the PLC control center, the PLC control center analyzes the received electric signal and sends an instruction to the pneumatic electromagnetic valve according to an analysis result, and the pneumatic electromagnetic valve controls the cylinder to work according to the received instruction, so that the cylinder controls the opening and closing of the discharge door of the storage bin; the second pressure sensor senses weight signals of materials contained in the oil sludge conveying device, the sensing signals are converted into weak electric signals, the weak electric signals are transmitted to the second servo driver, the second servo driver amplifies the received electric signals and transmits the amplified electric signals to the PLC control center, the PLC control center analyzes the received electric signals and sends instructions to the second servo driver according to analysis results, and the second servo driver controls the first servo motor to operate according to the received instructions, so that the first servo motor controls the oil sludge conveying device; the humidity sensor senses a humidity signal of oil sludge contained in the dryer and transmits the sensed signal to the humidity transmitter, the humidity transmitter converts the received signal into a standard electric signal and transmits the standard electric signal to the PLC control center, the PLC control center analyzes the received signal and sends an instruction to the third servo driver according to an analysis result, and the third servo driver controls the second servo motor to work according to the instruction, so that the second servo motor controls the dryer to stop and run.
Compared with the prior art, the intelligent system for controlling the pyrolysis and carbonization of the oil sludge provided by the invention has the beneficial effects that the intelligent control center controls each module to realize the intelligent control of the oil sludge pyrolysis and carbonization system, so that the system has the characteristics of easiness in control, simplicity in operation and stability in operation.
Further, the invention, by using the servo motor, is accurate: closed-loop control of position, speed and torque is realized; the problem that the stepping motor is out of step is solved; at the rotational speed: the high-speed performance is good, and the normal rated rotating speed can reach 2000-3000 revolutions; in adaptability: the overload resistance is strong, and the load which is three times of the rated torque can be borne; in terms of stability: the low-speed running is stable, and the stepping running phenomenon similar to that of a stepping motor cannot be generated during the low-speed running; in timeliness: the dynamic corresponding time of the acceleration and deceleration of the motor is short, and is generally within tens of milliseconds; in terms of comfort: the heat generation and noise are significantly reduced relative to other types of motors.
Furthermore, the servo feeding system is used, so that the positioning precision of the system is high, the feeding transition process time is shortened, the signal response is fast, the profile transition error is reduced, and the reliability is high.
Furthermore, the invention ensures the stability of the feeding device by controlling the opening and closing of the discharging door of the discharging bin by using the cylinder, and avoids the problem of reduced service life of the feeding device caused by excessive materials.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. An intelligent system for controlling pyrolysis and carbonization of oil sludge, comprising: the system comprises a discharging control module, a conveying control module, a drying control module and an intelligent control center; wherein,
the unloading control module is connected with the intelligent controller center and used for controlling the amount of the oil sludge filled in the feeding device;
the conveying control module is connected with the intelligent control center and is used for controlling a conveying device of the oil sludge;
the drying control module is connected with the intelligent control center and used for controlling the dryer to work;
the intelligent control center is arranged in the intelligent system and used for intelligently controlling each module.
2. The intelligent system for controlling pyrolysis and carbonization of oil sludge according to claim 1, wherein the discharge control module comprises: the system comprises a first pressure sensor, a first servo driver, a pneumatic electromagnetic valve and a cylinder; wherein,
the first pressure sensor is connected with the feeding device and used for sensing a pressure signal of oil sludge contained in the feeding device and converting the pressure signal into an electric signal;
the first servo driver is connected with the first pressure sensor and used for amplifying the electric signal sent by the first pressure sensor and transmitting the electric signal to the intelligent control center;
the pneumatic electromagnetic valve is connected with the intelligent control center and used for controlling the action of the air cylinder according to the instruction given by the intelligent control center;
the cylinder is connected with the pneumatic electromagnetic valve and used for controlling the opening and closing of the discharge door of the storage bin.
3. The intelligent system for controlling pyrolysis and carbonization of oil sludge according to claim 1, wherein the delivery control module comprises: the system comprises a first servo motor, a second servo driver and a second pressure sensor; wherein,
the first servo motor is connected with the oil sludge conveying device and used for providing power for the oil sludge conveying device;
the second pressure sensor is connected with the oil sludge conveying device and used for sensing pressure signals of the oil sludge contained in the oil sludge conveying device and converting the pressure signals into electric signals;
and the second servo driver is connected with the second pressure sensor and used for amplifying the electric signal sent by the second pressure sensor and transmitting the electric signal to the intelligent control center.
4. The intelligent system for controlling pyrolysis and carbonization of oil sludge according to claim 3, wherein the intelligent control center receives and analyzes the electric signal sent by the second servo driver, and sends an instruction to the second servo driver according to the analysis result.
5. The intelligent system for controlling pyrolysis and carbonization of oil sludge according to claims 3-4, wherein the second servo driver controls the first servo motor to work according to a command sent by the intelligent control center.
6. The intelligent system for controlling pyrolysis and carbonization of oil sludge according to claim 1, wherein the drying control module comprises: the humidity sensor, the humidity transmitter, the third servo driver and the second servo motor; wherein,
the humidity sensor is arranged in the dryer and used for sensing a humidity signal of oil sludge in the dryer and transmitting the humidity signal to the humidity transmitter;
the humidity transmitter is connected with the intelligent control center and used for converting the humidity signal of the humidity sensor into an electric signal and transmitting the electric signal to the intelligent control center.
7. The intelligent system for controlling pyrolysis and carbonization of oil sludge according to claim 6, wherein the intelligent control center analyzes the electric signal transmitted by the humidity transducer and sends an instruction to the third servo driver.
8. The system according to claims 6-7, wherein the third servo driver is connected to the second servo motor for controlling the second servo motor according to the command from the intelligent control center.
9. The dryer of claim 6 wherein said second servo motor is connected to said dryer for powering said dryer.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112485151A (en) * | 2020-11-10 | 2021-03-12 | 广西电网有限责任公司桂林供电局 | Automatic determination method for oil sludge precipitation of electric insulating oil |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120085704A1 (en) * | 2010-10-04 | 2012-04-12 | Enviro-Mix, Llc | Systems and methods for automated control of mixing and aeration in treatment processes |
| CN105688552A (en) * | 2016-03-21 | 2016-06-22 | 浙江尚鼎工业炉有限公司 | Oil sludge thermolysis carbonization smoke gas processing system |
| CN105948454A (en) * | 2016-07-13 | 2016-09-21 | 武汉科技大学 | Treatment method for industrial sludge and heat pump-solar coupling system implementing method |
| CN205939168U (en) * | 2016-08-23 | 2017-02-08 | 温州乐享科技信息有限公司 | Gu useless pay -off control system who burns burning furnace |
| CN206289157U (en) * | 2016-12-30 | 2017-06-30 | 誉晟蓝天环境科技（北京）有限公司 | A kind of oily sludge carbonization treatment apparatus |
| CN108251148A (en) * | 2018-01-17 | 2018-07-06 | 广州市元迪环境技术有限公司 | A kind of dangerous waste, solid waste oil-containing mud sand Thermal desorption comprehensive utilization method of disposal |
| CN108726831A (en) * | 2018-04-14 | 2018-11-02 | 苏州碧千里环保科技有限公司 | A kind of greasy filth pyrolysis recovery and processing system and its processing method |
| CN208265985U (en) * | 2018-02-09 | 2018-12-21 | 广州氨氮水污染治理有限公司 | A kind of sludge treatment complete equipment |
| CN208279482U (en) * | 2017-12-15 | 2018-12-25 | 安泰环境工程技术有限公司 | A kind of continous way steel rolling greasy filth pyrolysis charring processing unit |
-
2019
- 2019-03-27 CN CN201910239472.5A patent/CN109870975A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120085704A1 (en) * | 2010-10-04 | 2012-04-12 | Enviro-Mix, Llc | Systems and methods for automated control of mixing and aeration in treatment processes |
| CN105688552A (en) * | 2016-03-21 | 2016-06-22 | 浙江尚鼎工业炉有限公司 | Oil sludge thermolysis carbonization smoke gas processing system |
| CN105948454A (en) * | 2016-07-13 | 2016-09-21 | 武汉科技大学 | Treatment method for industrial sludge and heat pump-solar coupling system implementing method |
| CN205939168U (en) * | 2016-08-23 | 2017-02-08 | 温州乐享科技信息有限公司 | Gu useless pay -off control system who burns burning furnace |
| CN206289157U (en) * | 2016-12-30 | 2017-06-30 | 誉晟蓝天环境科技（北京）有限公司 | A kind of oily sludge carbonization treatment apparatus |
| CN208279482U (en) * | 2017-12-15 | 2018-12-25 | 安泰环境工程技术有限公司 | A kind of continous way steel rolling greasy filth pyrolysis charring processing unit |
| CN108251148A (en) * | 2018-01-17 | 2018-07-06 | 广州市元迪环境技术有限公司 | A kind of dangerous waste, solid waste oil-containing mud sand Thermal desorption comprehensive utilization method of disposal |
| CN208265985U (en) * | 2018-02-09 | 2018-12-21 | 广州氨氮水污染治理有限公司 | A kind of sludge treatment complete equipment |
| CN108726831A (en) * | 2018-04-14 | 2018-11-02 | 苏州碧千里环保科技有限公司 | A kind of greasy filth pyrolysis recovery and processing system and its processing method |
Non-Patent Citations (1)
| Title |
|---|
| 李方园: "《PLC行业应用实践》", 31 January 2007, 中国电力出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112485151A (en) * | 2020-11-10 | 2021-03-12 | 广西电网有限责任公司桂林供电局 | Automatic determination method for oil sludge precipitation of electric insulating oil |
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Application publication date: 20190611 |