CN112682310A - Cement plant high temperature fan economizer system - Google Patents

Cement plant high temperature fan economizer system Download PDF

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Publication number
CN112682310A
CN112682310A CN202011504849.4A CN202011504849A CN112682310A CN 112682310 A CN112682310 A CN 112682310A CN 202011504849 A CN202011504849 A CN 202011504849A CN 112682310 A CN112682310 A CN 112682310A
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China
Prior art keywords
switch module
control switch
module
temperature fan
frequency converter
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Pending
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CN202011504849.4A
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Chinese (zh)
Inventor
肖方斌
吴华俊
刘承恩
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Jiangxi Sanchuan Energy Saving Co ltd
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Jiangxi Sanchuan Energy Saving Co ltd
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Priority to CN202011504849.4A priority Critical patent/CN112682310A/en
Publication of CN112682310A publication Critical patent/CN112682310A/en
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Abstract

The invention discloses an energy-saving system for a high-temperature fan of a cement plant, which comprises a power supply input module, a DLC signal converter, a PLC controller, a first control switch module, a second control switch module, a third control switch module, a frequency converter, a first isolating switch module, a second isolating switch module and a driving module. Compared with the prior art, the invention has the beneficial effects that: through power input module, DLC signal converter, the PLC controller, first control switch module, second control switch module, third control switch module, the converter, first isolator module, the second isolator module, drive module, including a motor, an end cap, a controller, and a cover plate, the mutual cooperation of connecting axle and high temperature fan, thereby energy-conserving effect has been improved greatly, and guaranteed that the high temperature fan does not need long-term high-speed operation, operating current descends by a wide margin, objective economic benefits has been obtained simultaneously, steadiness when having improved the motion of high temperature fan simultaneously, bring very big facility for the user.

Description

Cement plant high temperature fan economizer system
Technical Field
The invention relates to the technical field of high-temperature fans of cement plants, in particular to an energy-saving system of a high-temperature fan of a cement plant.
Background
Cement enterprises are energy consumers in national economic production, and the cement industry has been listed as one of the key areas of national resource conservation. Cement: a powdered hydraulic inorganic cementitious material. Water is added and stirred to form slurry which can be hardened in air or water and can firmly bond sand, stone and other materials together. The early lime and pozzolan mixtures are similar to modern lime and pozzolan cements, and concrete made by cementing crushed stone with them not only has higher strength after hardening, but also resists erosion by fresh water or salt-containing water. As an important cementing material, the cement is widely applied to projects such as civil construction, water conservancy and national defense, the cement is particularly suitable for manufacturing concrete, precast concrete, fair-faced concrete, GRC products, adhesives and other special occasions, and is generally used for color pavement bricks, permeable bricks, cultural stone, sculpture crafts, terrazzo, wear-resistant terraces, putty and the like, and has high light reflection performance, so that the manufactured roadside stones, road signs and road center separation lines have higher traffic safety performance. The homogenized raw material is preheated and then calcined into clinker in a rotary kiln, and the proper air pressure and temperature are needed in the rotary kiln to ensure that the pulverized coal has certain suspension time to be fully combusted, so that the raw material can be well heat-treated in the kiln. The accumulation of materials in the kiln changes greatly, so that the instantaneous air pressure changes frequently. Kiln tail high temperature fan is used for adjusting kiln internal gas pressure on the one hand, high temperature clinker after the calcination comes out in the on the other hand rotary kiln has waste gas, the waste gas area ash, draw forth through kiln tail high temperature fan and handle the dust by the electric dust collector, discharge waste gas again, but common high temperature fan's the amount of wind control method relies on the blow-off valve to adjust, because roots's fan's the amount of wind is comparatively invariable, adjust the amount of wind at any time according to the condition needs of kiln during calcination, when needing few amount of wind in the kiln, put away unnecessary amount of wind through the blow-off valve, cause serious energy waste, bring very big inconvenience for the user, for this reason, we provide a cement plant high temperature fan economizer system.
Disclosure of Invention
The invention aims to provide an energy-saving system for a high-temperature fan of a cement plant, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a high-temperature fan energy-saving system of a cement plant comprises a power supply input module, a DLC signal converter, a PLC controller, a first control switch module, a second control switch module, a third control switch module, a frequency converter, a first isolating switch module, a second isolating switch module and a driving module;
the driving module comprises a motor, a connecting shaft and a high-temperature fan, and the motor is fixedly connected with the high-temperature fan through the connecting shaft.
The invention also provides an energy-saving system for the high-temperature fan of the cement plant, which comprises the following steps:
s1, supplying power to the DLC signal converter, the PLC, the first control switch module, the second control switch module, the third control switch module, the frequency converter, the first isolating switch module, the second isolating switch module and the driving module through the power input module;
s2, collecting DCS information through a DCS signal converter, transmitting the DCS information to a PLC controller, calculating by the PLC controller through PLC energy-saving control software, and transmitting the information to a frequency converter through a first control switch module and a first isolating switch module;
s3, the frequency converter transmits the received signal to a second isolating switch module and a second control switch module through the output end of the frequency converter, and then transmits the signal to a driving module through the second isolating switch module and the second control switch module, and the motor drives the high-temperature fan to move through a connecting shaft;
s4, when the frequency converter breaks down, the PLC controller control system automatically disconnects the first control switch module and the second control switch module, so that the PLC controller is connected with the third control switch module, the PLC controller does not control the driving module through the frequency converter, the driving module is controlled through the third control switch module, a fault warning signal can be given out after the frequency converter breaks down, and personnel are informed to overhaul and maintain the frequency converter immediately.
Preferably, the high-temperature fan is stopped for no more than 5min, and the kiln generally can not be stopped.
Preferably, the power input module is an 8KV power supply.
Preferably, the information collected by the DCS signal converter is a command of air volume and air pressure.
Preferably, the power input module, the DLC signal converter, the PLC controller, the first control switch module, the second control switch module, the third control switch module, the frequency converter, the first isolating switch module, the second isolating switch module, and the driving module are all electrically connected by using a wire.
Compared with the prior art, the invention has the beneficial effects that: through the mutual matching of the power input module, the DLC signal converter, the PLC controller, the first control switch module, the second control switch module, the third control switch module, the frequency converter, the first isolating switch module, the second isolating switch module, the driving module, the motor, the connecting shaft and the high-temperature fan, the energy-saving effect is greatly improved, the high-temperature fan can automatically adjust the air volume and the air pressure as required, the high-temperature fan does not need to run at high speed for a long time, the working current is greatly reduced, objective economic benefits are obtained, the vibration and the noise of the motor are obviously reduced, the service lives of the motor and the high-temperature fan are prolonged, the stability of the high-temperature fan during motion is improved, and after the first control switch module and the second control switch module are separated from each other through the mutual matching of the first isolating switch module and the second isolating switch module, can establish reliable insulating gap, separate the converter or the circuit that will overhaul with the power with an obvious disconnection point to guarantee the safety of maintainer and equipment, thereby greatly reduced the emergence of potential safety hazard, bring very big facility for the user.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a system diagram of a driving module according to the present invention.
In the figure: the high-temperature fan comprises a power input module 1, a DLC signal converter 2, a PLC controller 3, a first control switch module 4, a second control switch module 5, a third control switch module 6, a frequency converter 7, a first isolating switch module 8, a second isolating switch module 9, a driving module 10, a motor 101, a connecting shaft 102 and a high-temperature fan 103.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a cement plant high temperature fan economizer system, the system includes power input module 1, DLC signal converter 2, PLC controller 3, first control switch module 4, second control switch module 5, third control switch module 6, converter 7, first isolator module 8, second isolator module 9 and drive module 10.
The driving module 10 includes a motor 101, a connecting shaft 102 and a high temperature fan 103, wherein the motor 101 is fixedly connected with the high temperature fan 103 through the connecting shaft 102.
The invention also provides an energy-saving system for the high-temperature fan of the cement plant, which comprises the following steps:
and S1, the DLC signal converter 2, the PLC 3, the first control switch module 4, the second control switch module 5, the third control switch module 6, the frequency converter 7, the first isolating switch module 8, the second isolating switch module 9 and the driving module 10 are powered through the power input module 1, and the power input module 1 is a power supply of 8 KV.
S2, DCS information is collected through the DCS signal converter 2 and transmitted to the PLC 3, the PLC 3 calculates through PLC energy-saving control software, then the information is transmitted to the frequency converter 7 through the first control switch module 4 and the first isolating switch module 8, and the information collected by the DCS signal converter 2 is an air volume and air pressure command.
S3, the frequency converter 7 transmits the received signal to the second isolating switch module 9 and the second control switch module 5 through the output end of the frequency converter 7, then transmits the signal to the driving module 10 through the second isolating switch module 9 and the second control switch module 5, and the motor 101 drives the high-temperature fan 103 to move through the connecting shaft 102.
S4, when the frequency converter 7 has a fault, the PLC controller 3 control system automatically disconnects the first control switch module 4 and the second control switch module 5, so that the PLC controller 3 is connected with the third control switch module 6, the PLC controller 3 does not control the drive module 10 through the frequency converter 7, the drive module 10 is controlled through the third control switch module 6, the frequency converter 7 gives a fault warning signal after the fault occurs, and informs personnel to overhaul and maintain the frequency converter 7 immediately, the high-temperature fan 103 can be stopped for no more than 5min generally, the power input module 1, the DLC signal converter 2, the PLC controller 3, the first control switch module 4, the second control switch module 5, the third control switch module 6, the frequency converter 7, the first isolating switch module 8, the second isolating switch module 9 and the drive module 10 are electrically connected by adopting conducting wires, when the first control switch module 4, the second control switch module 5, the first isolating switch module 8 and the second isolating switch module 9 are turned on, the third control switch module 6 is turned off, otherwise, when the third control switch module 6 is turned on, the first control switch module 4, the second control switch module 5, the first isolating switch module 8 and the second isolating switch module 9 are turned off, and through the mutual cooperation of the power input module 1, the DLC signal converter 2, the PLC controller 3, the first control switch module 4, the second control switch module 5, the third control switch module 6, the frequency converter 7, the first isolating switch module 8, the second isolating switch module 9, the driving module 10, the motor 101, the connecting shaft 102 and the high-temperature fan 103, the energy-saving effect is greatly improved, so that the high-temperature fan 103 can automatically adjust the air volume and the air pressure as required, and guaranteed that the high temperature fan does not need long-term high-speed operation, operating current descends by a wide margin, objective economic benefits has been obtained simultaneously, and make the apparent reduction of vibration and the noise of motor 101, the life of motor 101 and high temperature fan 103 has been improved, the steadiness when high temperature fan 103 moves has been improved simultaneously, and through mutually supporting of first isolator module 8 and second isolator module 9, make behind first control switch module 4 and the 5 separating brake of second control switch module, can establish reliable insulating clearance, the converter 7 or the circuit that will overhaul are separated with an obvious disconnection point with the power, with the safety of guaranteeing maintainer and equipment, thereby greatly reduced the emergence of potential safety hazard, bring very big facility for the user.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a cement plant high temperature fan economizer system which characterized in that: the system comprises a power input module (1), a DLC signal converter (2), a PLC (programmable logic controller) controller (3), a first control switch module (4), a second control switch module (5), a third control switch module (6), a frequency converter (7), a first isolating switch module (8), a second isolating switch module (9) and a driving module (10);
the driving module (10) comprises a motor (101), a connecting shaft (102) and a high-temperature fan (103), wherein the motor (101) is fixedly connected with the high-temperature fan (103) through the connecting shaft (102).
2. The utility model provides a cement plant high temperature fan economizer system which characterized in that: the method comprises the following steps:
s1, supplying power to the DLC signal converter (2), the PLC (programmable logic controller) (3), the first control switch module (4), the second control switch module (5), the third control switch module (6), the frequency converter (7), the first isolating switch module (8), the second isolating switch module (9) and the driving module (10) through the power input module (1);
s2, collecting DCS information through a DCS signal converter (2), transmitting the DCS information to a PLC (programmable logic controller) controller (3), calculating the information through PLC energy-saving control software by the PLC controller (3), and transmitting the information to a frequency converter (7) through a first control switch module (4) and a first isolating switch module (8);
s3, the frequency converter (7) transmits the received signal to the second isolating switch module (9) and the second control switch module (5) through the output end of the frequency converter (7), then transmits the signal to the driving module (10) through the second isolating switch module (9) and the second control switch module (5), and the motor (101) drives the high-temperature fan (103) to move through the connecting shaft (102);
s4, when the frequency converter (7) breaks down, the PLC controller (3) control system automatically disconnects the first control switch module (4) and the second control switch module (5), so that the PLC controller (3) is connected with the third control switch module (6), the PLC controller (3) does not control the driving module (10) through the frequency converter (7), the driving module (10) is controlled through the third control switch module (6), a fault warning signal can be given out after the frequency converter (7) breaks down, and personnel are informed to immediately overhaul and maintain the frequency converter (7).
3. The energy-saving system for the high-temperature fan of the cement plant according to claim 2, characterized in that: the high-temperature fan (103) is stopped for no more than 5min, and the kiln generally can not be stopped.
4. The energy-saving system for the high-temperature fan of the cement plant according to claim 3, characterized in that: the power input module (1) is an 8KV power supply.
5. The energy-saving system for the high-temperature fan of the cement plant according to claim 4, characterized in that: the information collected by the DCS signal converter (2) is the command of air volume and air pressure.
6. The energy-saving system for the high-temperature fan of the cement plant according to claim 5, characterized in that: the power input module (1), the DLC signal converter (2), the PLC controller (3), the first control switch module (4), the second control switch module (5), the third control switch module (6), the frequency converter (7), the first isolating switch module (8), the second isolating switch module (9) and the driving module (10) are electrically connected through wires.
CN202011504849.4A 2020-12-18 2020-12-18 Cement plant high temperature fan economizer system Pending CN112682310A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011504849.4A CN112682310A (en) 2020-12-18 2020-12-18 Cement plant high temperature fan economizer system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011504849.4A CN112682310A (en) 2020-12-18 2020-12-18 Cement plant high temperature fan economizer system

Publications (1)

Publication Number Publication Date
CN112682310A true CN112682310A (en) 2021-04-20

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201526482U (en) * 2009-09-22 2010-07-14 福建东讯工业电气自动化有限公司 Energy-saving control device for high temperature fan in cement mill
CN103256237A (en) * 2012-02-15 2013-08-21 苏州中材建设有限公司 Cement plant pressure fan energy-saving control system
CN203166734U (en) * 2013-01-21 2013-08-28 江苏力普电子科技有限公司 High voltage frequency converter capable of manual-automatic integrated bypass control
CN203350708U (en) * 2013-08-02 2013-12-18 中国能源建设集团广东省电力设计研究院 High-voltage frequency converter "one-driving-two" control system
CN206820639U (en) * 2017-06-19 2017-12-29 湖北楚天电气有限公司 A kind of high-pressure frequency-conversion auto by pass cabinet
CN211183845U (en) * 2019-12-13 2020-08-04 上海福思特流体机械有限公司 Frequency conversion switching power frequency device for motor dragging load
CN211531029U (en) * 2020-02-20 2020-09-18 上海厦弘节能科技有限公司 Automatic bypass device of frequency converter

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201526482U (en) * 2009-09-22 2010-07-14 福建东讯工业电气自动化有限公司 Energy-saving control device for high temperature fan in cement mill
CN103256237A (en) * 2012-02-15 2013-08-21 苏州中材建设有限公司 Cement plant pressure fan energy-saving control system
CN203166734U (en) * 2013-01-21 2013-08-28 江苏力普电子科技有限公司 High voltage frequency converter capable of manual-automatic integrated bypass control
CN203350708U (en) * 2013-08-02 2013-12-18 中国能源建设集团广东省电力设计研究院 High-voltage frequency converter "one-driving-two" control system
CN206820639U (en) * 2017-06-19 2017-12-29 湖北楚天电气有限公司 A kind of high-pressure frequency-conversion auto by pass cabinet
CN211183845U (en) * 2019-12-13 2020-08-04 上海福思特流体机械有限公司 Frequency conversion switching power frequency device for motor dragging load
CN211531029U (en) * 2020-02-20 2020-09-18 上海厦弘节能科技有限公司 Automatic bypass device of frequency converter

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Application publication date: 20210420

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