CN111088427B - Fan control system and control method based on electronic waste and complex copper-based solid waste - Google Patents
Fan control system and control method based on electronic waste and complex copper-based solid waste Download PDFInfo
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- CN111088427B CN111088427B CN201811281608.0A CN201811281608A CN111088427B CN 111088427 B CN111088427 B CN 111088427B CN 201811281608 A CN201811281608 A CN 201811281608A CN 111088427 B CN111088427 B CN 111088427B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/002—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying geometry within the pumps, e.g. by adjusting vanes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The invention discloses a fan control system and a control method based on electronic waste and complex copper-based solid waste, wherein the fan control system comprises: the fan is connected the unloading on the blast pipe of fan and is adjusted the pipeline, is provided with on the unloading adjusts the pipeline: the mass flow meter, the temperature measuring unit and the pressure gauge are used for converting the non-standard-condition flow into standard-condition flow; a vent regulating valve; the motor is connected with the fan and used for providing power for the operation of the fan; and the controller is connected with the temperature adjusting unit and the emptying adjusting valve and used for adjusting the temperature of the emptying adjusting pipeline through the temperature adjusting unit and linearly adjusting the emptying proportion through the emptying adjusting valve. The invention has the following advantages: the air quantity required by smelting by taking electronic waste, complex copper-based solid waste and the like as raw materials can be effectively solved, a fan is not required to be replaced, the enterprise investment is saved, the reconstruction period is shortened, the normal operation of production is guaranteed, and the energy conservation and consumption reduction are realized.
Description
Technical Field
The invention relates to the technical field of fan control, in particular to a fan control system and a fan control method based on electronic waste and complex copper-based solid waste.
Background
With the development of environmental protection situation and the gradual depletion of mineral resources, the renewable resource industry for treating electronic waste and complex copper-based solid waste is emerging. The components of the electronic waste, the complex copper-based solid waste and the like are more complex than those of the conventional minerals, and the content of oxygen required to be provided in the smelting process is greatly changed. The process fan provides oxygen required by smelting for the smelting furnace, the components of the raw materials of the smelting furnace are complex, and the air quantity required by the raw materials with different proportions is greatly different.
The existing fan air volume adjusting mode has two problems: firstly, the air volume adjusting range is small and is 70% -100% of rated air volume, and the requirement of the smelting furnace on working condition change cannot be met. Secondly, the time consumption for adjusting the stability is long, the wind pressure must be set firstly, and after the system is stable, the wind quantity is slowly adjusted until the required wind quantity is reached. Because the constant pressure regulation control mode is not matched with the requirement of the smelting process program mode, the two parameters of air quantity and air pressure are automatically and stably regulated, and the two regulation are mutually interfered in the actual operation, the operation fluctuation of the fan is large, and even the fan is frequently stopped and started. Therefore, the original fan air quantity adjusting mode can not meet the production process requirements, and brings great operation potential safety hazards to the operation of a smelting furnace and a fan.
Disclosure of Invention
The present invention is directed to solving at least one of the above problems.
Therefore, the first purpose of the invention is to provide a fan control system based on electronic waste and complex copper-based solid waste, which can effectively solve the air volume required by smelting by taking the electronic waste, the complex copper-based solid waste and the like as raw materials.
The second purpose of the invention is to provide a control method of the fan, which can effectively solve the air quantity required by smelting by taking electronic waste, complex copper-based solid waste and the like as raw materials.
In order to achieve the above object, an embodiment of the present invention discloses a fan control system based on electronic waste and complex copper-based solid waste, comprising: the fan is connected the unloading on the main vent-pipe of fan and adjusts the pipeline, be provided with on the unloading adjusts the pipeline: the mass flow meter, the temperature measuring unit and the pressure gauge are used for converting the non-standard-condition flow into standard-condition flow; a vent regulating valve; the motor is connected with the fan and used for providing power for the operation of the fan; and the controller is connected with the temperature adjusting unit and the emptying adjusting valve, and is used for adjusting the temperature of the emptying adjusting pipeline through the temperature adjusting unit and linearly adjusting the emptying proportion through the emptying adjusting valve.
According to the fan control system based on the electronic waste and the complex copper-based solid waste, the air quantity required by smelting by taking the electronic waste, the complex copper-based solid waste and the like as raw materials can be effectively solved, the fan does not need to be replaced, the enterprise investment is saved, the reconstruction period is shortened, the normal operation of production is guaranteed, the energy is saved, and the consumption is reduced.
In addition, the fan control system based on electronic waste and complex copper-based solid waste according to the above embodiment of the present invention may further have the following additional technical features:
optionally, an emptying silencer is further arranged on the emptying adjusting pipeline.
Optionally, the temperature measuring unit is a thermocouple.
In order to achieve the above object, an embodiment of the present invention discloses a fan control method, including the fan control system based on electronic waste and complex copper-based solid waste of the above embodiment, the control method includes the following steps: s1: acquiring the air mass flow at the outlet of the fan; s2: if the air mass flow at the outlet of the fan is less than the preset rated mass flow A%, controlling the emptying regulating valve to be fully opened; s3: if the exhaust mass flow at the outlet of the fan is larger than or equal to the preset rated mass flow A%, acquiring the pressure of a working air pipe of the fan; s4: if the pressure of the working air pipe is larger than or equal to the preset rated mass flow rate A%, acquiring the exhaust pressure of the working air pipe, and if the exhaust pressure of the working air pipe is larger than a first pressure threshold, closing an inlet guide vane of the fan; if the exhaust pressure of the working air pipe is less than the first pressure threshold value, opening an inlet guide vane of the fan; wherein, the working air pipe is arranged on the main exhaust pipe, and A is a natural number less than 100.
According to the control method of the fan, the air quantity required by smelting by taking electronic waste, complex copper-based solid waste and the like as raw materials can be effectively solved.
Optionally, after step S3, the method further includes: if the preset rated mass flow rate is B% < the exhaust mass flow rate of the working air pipe of the fan is < the preset rated mass flow rate is A%, acquiring the exhaust pressure of the working air pipe, and if the exhaust pressure of the working air pipe is greater than a second preset pressure threshold, closing an inlet guide vane of the fan and opening the emptying regulating valve; if the third preset pressure threshold value < the exhaust pressure of the working air pipe < the second preset pressure threshold value, opening the emptying regulating valve; if the exhaust pressure of the working air pipe is smaller than the third preset pressure threshold value, opening an inlet guide vane of the fan and closing the emptying regulating valve; wherein B < a and B are natural numbers less than 100, and the third preset pressure threshold < the second preset pressure threshold.
Optionally, the method further comprises: acquiring the exhaust pressure of the working air pipe; if the exhaust pressure of the working air pipe is less than the set exhaust pressure C, the opening degree of the emptying regulating valve is reduced by D% at preset time intervals until the exhaust pressure of the working air pipe is equal to the set exhaust pressure; wherein, C belongs to (0, 1), D belongs to (0, (1-C) 100).
Optionally, the method further comprises: acquiring the exhaust pressure of the working air pipe; if the exhaust pressure of the working air pipe is greater than the set exhaust pressure E, the opening of the air release regulating valve is increased by F% at preset time intervals until the exhaust pressure of the working air pipe is equal to the set exhaust pressure; wherein E ∈ (1, 2), F ∈ (0, (2-E) × 100).
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a block diagram of a fan control system based on electronic waste and complex copper-based solid waste according to an embodiment of the present invention;
FIG. 2 is a fan control schematic of one embodiment of the present invention;
fig. 3 is a flowchart of a control method of a fan according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
These and other aspects of embodiments of the invention will be apparent with reference to the following description and attached drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the ways in which the principles of the embodiments of the invention may be practiced, but it is understood that the scope of the embodiments of the invention is not limited correspondingly. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
The following describes a fan control system and a control method based on electronic waste and complex copper-based solid waste according to an embodiment of the present invention with reference to the accompanying drawings.
Fig. 1 is a block diagram of a fan control system based on electronic waste and complex copper-based solid waste according to an embodiment of the present invention, and fig. 2 is a schematic diagram of a fan control according to an embodiment of the present invention. As shown in fig. 1 and 2, the blower control system based on electronic waste and complex copper-based solid waste according to the embodiment of the present invention includes a blower 100, a motor 200, and a controller 300.
Wherein, the main exhaust pipe 110 of the fan is connected with a vent adjusting pipeline 120 and a working air pipe 130.
Wherein, the emptying adjusting pipeline 120 is provided with a mass flow meter, a temperature measuring unit, a pressure gauge and an emptying adjusting valve. The temperature measuring unit and the pressure gauge are used for converting the non-standard condition flow into the standard condition flow, so that the industrial use and adjustment are facilitated. In one embodiment of the invention, the temperature measuring unit is a thermocouple.
The air release regulating valve is pneumatically linear and has an anti-surge function, and rapid regulation along with process working condition change is realized through pneumatic regulation.
The motor 200 is connected to the blower 100 for providing power for the operation of the blower 100.
The controller 300 is connected with the motor 200, the temperature adjusting unit and the air release adjusting valve, and is used for adjusting the temperature of the air release adjusting pipeline through the temperature adjusting unit and linearly adjusting the air release proportion through the air release adjusting valve.
In one embodiment of the present invention, a vent muffler is further provided on the vent adjusting pipe 120. The emptying silencer is used for controlling noise at a position 1m away from the vicinity of the emptying silencer, and the noise control is superior to the national standard (85db (A) — the background noise superposed by a fan and other equipment is deducted.
According to the fan control system based on the electronic waste and the complex copper-based solid waste, the air volume required by smelting by taking the electronic waste, the complex copper-based solid waste and the like as raw materials is effectively solved, the modification time is greatly shortened, the cost for repurchasing a new fan and a distribution system of the new fan is saved, and the modified fan can meet the production requirement for a long time; the required air quantity is provided according to the requirements of furnace conditions, so that raw materials such as electronic waste, complex statistical solid waste and the like are fully combusted, the consumption of natural gas is reduced, and the discharge amount of pollutants in smelting smoke is effectively reduced; the modified fan can adapt to the smelting process and the air quantity required by the smelting furnace can be rapidly changed synchronously along with the temperature of the smelting furnace.
Fig. 3 is a flowchart of a control method of a fan according to an embodiment of the present invention. As shown in fig. 3, the control method of the fan according to the embodiment of the present invention includes the fan control system based on the electronic waste and the complex copper-based solid waste according to the above embodiment. The control method comprises the following steps:
s1: and acquiring the air mass flow at the outlet of the fan. The mass flow of air in the main exhaust pipe is obtained, for example, using the flow meter in fig. 2, and the nonstandard flow is converted to a standard flow by the flow meter, thermocouple, and pressure gauge.
S2: and if the air mass flow at the outlet of the fan is less than the preset rated mass flow A%, controlling the emptying regulating valve to be fully opened. Wherein the working air pipe 130 is disposed on the main exhaust pipe 110, and a is a natural number less than 100. In one embodiment of the invention, when a is 70, i.e. the air mass flow at the fan outlet is < 70% of the preset rated mass flow, the air vent regulating valve is controlled to be fully opened.
S3: and if the air mass flow at the outlet of the fan is more than or equal to the preset rated mass flow A%, acquiring the pressure of a working air pipe of the fan. In an example of the present invention, when the air mass flow at the outlet of the fan is greater than or equal to the preset rated mass flow × 70%, the pressure of the working air pipe 120 of the fan needs to be obtained, and then different controls are performed according to the difference of the pressure of the working air pipe 120.
S4: if the exhaust mass flow of the working air pipe is larger than or equal to a preset rated mass flow A%, acquiring the exhaust pressure of the working air pipe, for example, when the exhaust mass flow of the working air pipe is larger than or equal to a preset rated mass flow 70%, dividing into two conditions:
1. and if the exhaust pressure of the working air pipe is greater than the first pressure threshold value, closing an inlet guide vane of the fan. In one example of the present invention, when the first pressure threshold is 0.15MPa, that is, the exhaust pressure of the working air pipe is greater than 0.15MPa, the inlet guide vane of the fan is turned down;
2. and if the exhaust pressure of the working air pipe is less than the first pressure threshold value, opening the inlet guide vane of the fan, namely opening the inlet guide vane of the fan when the exhaust pressure of the working air pipe is less than 0.15 MPa.
In an embodiment of the present invention, after step S3, the method further includes: and if the preset rated mass flow rate B% is less than the exhaust mass flow rate of the working air pipe of the fan, the exhaust pressure of the working air pipe is obtained. Wherein B < A and B is a natural number less than 100. In an example of the present invention, when B is 30, that is, the preset rated mass flow rate is 30% < the air mass flow rate at the outlet of the fan is < the preset rated mass flow rate is 70%, the pressure of the working air pipe 120 of the fan needs to be obtained, and then different control is performed according to the pressure of the working air pipe 120. There are three cases:
1. and if the exhaust pressure of the working air pipe is greater than a second preset pressure threshold value, closing an inlet guide vane of the fan and opening the emptying regulating valve. In one example of the invention, when the second preset pressure threshold is 0.18MPa, namely the exhaust pressure of the working air pipe is greater than 0.18MPa, the inlet guide vanes of the fan are closed and the air release regulating valve is opened.
2. And if the third preset pressure threshold value < the exhaust pressure of the working air pipe < the second preset pressure threshold value, opening the emptying regulating valve. Wherein the third preset pressure threshold < the second preset pressure threshold. In one example of the invention, the vent regulator valve is opened when the third preset pressure threshold is 0.1MPa, i.e. 0.1MPa < exhaust pressure of the working air pipe <0.18 MPa.
3. And if the exhaust pressure of the working air pipe is less than the third preset pressure threshold value, opening an inlet guide vane of the fan and closing the emptying regulating valve, namely closing the emptying regulating valve when the exhaust pressure of the working air pipe is less than 0.1 MPa.
In an embodiment of the present invention, the control method of the wind turbine further includes: acquiring the exhaust pressure of the working air pipe; if the exhaust pressure of the working air pipe is less than the set exhaust pressure C, the opening degree of the emptying regulating valve is reduced by D% at preset time intervals until the exhaust pressure of the working air pipe is equal to the set exhaust pressure; wherein, C belongs to (0, 1), D belongs to (0, (1-C) 100).
In one example of the present invention, C is 0.9, D is 1, and the preset time is 5 seconds, that is, when the exhaust pressure of the working air pipe is less than the set exhaust pressure 0.9, the opening degree of the purge regulating valve is reduced by 1% every 5 seconds until the exhaust pressure of the working air pipe is equal to the set exhaust pressure.
In an embodiment of the present invention, the control method of the wind turbine further includes: acquiring the exhaust pressure of the working air pipe; if the exhaust pressure of the working air pipe is greater than the set exhaust pressure E, the opening of the air release regulating valve is increased by F% at preset time intervals until the exhaust pressure of the working air pipe is equal to the set exhaust pressure; wherein E ∈ (1, 2), F ∈ (0, (2-E) × 100).
In one example of the present invention, when E is 1.1, F is 1, and the preset time is 5 seconds, that is, when the exhaust pressure of the working air pipe is greater than the set exhaust pressure x 1.1, the opening degree of the air-release regulating valve is increased by 1% every 5 seconds until the exhaust pressure of the working air pipe is equal to the set exhaust pressure.
According to the control method of the fan, the air quantity required by smelting by taking electronic waste, complex copper-based solid waste and the like as raw materials is effectively solved, the control method is realized in the existing DCS control system, the investment is small, and the improvement is convenient; the required air quantity is provided according to the requirements of the furnace conditions, so that the electronic waste and the raw materials such as complex statistical solid waste are fully combusted, the consumption of natural gas is reduced, and the discharge amount of pollutants in smelting smoke is effectively reduced.
In addition, other structures and functions of the fan control system based on the electronic waste and the complex copper-based solid waste in the embodiment of the invention are known to those skilled in the art, and are not described in detail in order to reduce redundancy.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (6)
1. A fan control system based on electronic waste and complex copper-based solid waste is characterized by comprising:
the fan is connected the unloading on the main vent-pipe of fan and adjusts the pipeline, be provided with on the unloading adjusts the pipeline:
the mass flow meter, the temperature measuring unit and the pressure gauge are used for converting the non-standard-condition flow into standard-condition flow;
a vent regulating valve;
the motor is connected with the fan and used for providing power for the operation of the fan;
the controller is connected with the temperature adjusting unit and the emptying adjusting valve, and is used for adjusting the temperature of the emptying adjusting pipeline through the temperature adjusting unit and linearly adjusting the emptying proportion through the emptying adjusting valve, wherein if the air mass flow at the outlet of the fan is more than or equal to the preset rated mass flow A%, the pressure of a working air pipe of the fan is obtained; if the preset rated mass flow rate is B% < the exhaust mass flow rate of the working air pipe of the fan is < the preset rated mass flow rate is A%, acquiring the exhaust pressure of the working air pipe, and if the exhaust pressure of the working air pipe is greater than a second preset pressure threshold, closing an inlet guide vane of the fan and opening the emptying regulating valve; if the third preset pressure threshold value < the exhaust pressure of the working air pipe < the second preset pressure threshold value, opening the emptying regulating valve; if the exhaust pressure of the working air pipe is smaller than the third preset pressure threshold value, opening an inlet guide vane of the fan and closing the emptying regulating valve; wherein B < a and B are natural numbers less than 100, and the third preset pressure threshold < the second preset pressure threshold.
2. The fan control system based on electronic waste and complex copper-based solid waste according to claim 1, wherein a vent silencer is further arranged on the vent adjusting pipeline.
3. The fan control system based on electronic waste and complex copper-based solid waste of claim 1, wherein the temperature measurement unit is a thermocouple.
4. A control method of a fan, which is characterized by comprising the fan control system based on electronic waste and complex copper-based solid waste of claim 1, wherein the control method comprises the following steps:
s1: acquiring the air mass flow at the outlet of the fan;
s2: if the air mass flow at the outlet of the fan is less than the preset rated mass flow A%, controlling the emptying regulating valve to be fully opened;
s3: if the air mass flow at the outlet of the fan is larger than or equal to the preset rated mass flow A%, acquiring the pressure of a working air pipe of the fan; further included after step S3 is:
if the preset rated mass flow rate B% and the exhaust mass flow rate of the working air pipe of the fan are less than the preset rated mass flow rate A%, acquiring the exhaust pressure of the working air pipe,
if the exhaust pressure of the working air pipe is greater than a second preset pressure threshold value, closing an inlet guide vane of the fan and opening the emptying regulating valve;
if the third preset pressure threshold value < the exhaust pressure of the working air pipe < the second preset pressure threshold value, opening the emptying regulating valve;
if the exhaust pressure of the working air pipe is smaller than the third preset pressure threshold value, opening an inlet guide vane of the fan and closing the emptying regulating valve;
wherein B < a and B are natural numbers less than 100, and the third preset pressure threshold < the second preset pressure threshold;
s4: if the exhaust mass flow of the working air pipe is more than or equal to the preset rated mass flow A%, acquiring the exhaust pressure of the working air pipe,
if the exhaust pressure of the working air pipe is larger than a first pressure threshold value, closing an inlet guide vane of the fan;
if the exhaust pressure of the working air pipe is less than the first pressure threshold value, opening an inlet guide vane of the fan;
wherein, the working air pipe is arranged on the main exhaust pipe, and A is a natural number less than 100.
5. The method of controlling a wind turbine according to claim 4, further comprising:
acquiring the exhaust pressure of the working air pipe;
if the exhaust pressure of the working air pipe is less than the set exhaust pressure C, the opening degree of the emptying regulating valve is reduced by D% at preset time intervals until the exhaust pressure of the working air pipe is equal to the set exhaust pressure;
wherein, C belongs to (0, 1), D belongs to (0, (1-C) 100).
6. The method of controlling a wind turbine according to claim 5, further comprising:
acquiring the exhaust pressure of the working air pipe;
if the exhaust pressure of the working air pipe is greater than the set exhaust pressure E, the opening of the air release regulating valve is increased by F% at preset time intervals until the exhaust pressure of the working air pipe is equal to the set exhaust pressure;
wherein E ∈ (1, 2), F ∈ (0, (2-E) × 100).
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| CN116123123B (en) * | 2023-04-04 | 2023-08-01 | 亿昇(天津)科技有限公司 | Control method of magnetic suspension blower system and magnetic suspension blower system |
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| AU5773801A (en) * | 2000-08-03 | 2002-02-07 | Sustainable Agricultural Machinery Developments Pl | Ventilation system |
| CN108531681A (en) * | 2018-05-08 | 2018-09-14 | 中冶东方工程技术有限公司 | Converter gas dry method dust autocontrol method |
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