CN110746090B - Production system and production method of microfiber glass wool - Google Patents
Production system and production method of microfiber glass wool Download PDFInfo
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- CN110746090B CN110746090B CN201911192849.2A CN201911192849A CN110746090B CN 110746090 B CN110746090 B CN 110746090B CN 201911192849 A CN201911192849 A CN 201911192849A CN 110746090 B CN110746090 B CN 110746090B
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/235—Heating the glass
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/06—Manufacture of glass fibres or filaments by blasting or blowing molten glass, e.g. for making staple fibres
- C03B37/065—Manufacture of glass fibres or filaments by blasting or blowing molten glass, e.g. for making staple fibres starting from tubes, rods, fibres or filaments
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/07—Controlling or regulating
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/08—Bushings, e.g. construction, bushing reinforcement means; Spinnerettes; Nozzles; Nozzle plates
Abstract
The invention discloses a production system and a production method of microfiber glass wool, wherein the production system comprises a melting kiln, a fuel gas source, a first air blower, a wire drawing bushing plate, a cotton blowing device, a second air blower, a cotton collecting device and a controller; the production method comprises the following steps: (1) heating and melting; (2) drawing wires; (3) and (5) blowing cotton. Has the advantages that: the device has a simple structure, is easy to realize, realizes an automatic control function, ensures the stability of the beating degree of the glass wool, and further ensures the stable quality of the produced glass wool; the pressure stability of flame airflow blown out by the glass wool spraying machine is ensured, so that the slag ball content in the glass wool product is reduced, and the quality of the glass wool is improved; the consumption of fuel gas is reduced, the power consumption is reduced, and the production cost is reduced.
Description
The technical field is as follows:
the invention relates to the technical field of glass wool production, in particular to a production system and a production method of microfiber glass wool.
Background art:
the glass wool is inorganic fiber and is widely applied to the fields of petroleum pipeline oil transportation and natural pipeline gas transportation due to the characteristics of good forming, small volume density, low thermal conductivity, good heat insulation, sound absorption, corrosion resistance and good chemical property. At present, the main production method of microfiber glass wool is a flame blowing method.
At present, a glass material block is melted into glass solution by a furnace through a flame blowing method, and then the glass solution is blown by flame to form glass fiber, so that the method is suitable for producing glass wool with the average diameter of less than 2.0um and is widely used; however, the flame blowing method has the following problems: 1. at present, the temperature of a glass material block melted by a kiln is detected by a thermocouple instrument, the detected data can be displayed on the instrument, the change of the data is observed manually at any time, the fuel gas flow and the combustion-supporting gas flow are regulated, the condition of regulation lag easily occurs, the temperature in the kiln is unstable, the wiredrawing is unstable, the stability of the beating degree of glass wool is poor, and the quality of the glass wool is unstable; 2. during flame blowing and wire drawing, manual adjustment is carried out by manually observing the data of fuel gas flow and combustion-supporting gas flow displayed on a flow instrument, but the problem that the fuel gas flow and the combustion-supporting gas flow cannot be adjusted in time easily occurs when the fuel gas flow and the combustion-supporting gas flow are adjusted manually, so that the blown flame gas flow is unstable, the content of slag balls in the glass wool product is high, and the quality of the glass wool is influenced; 3. because the flow of the fuel gas injected by the heating kiln and the flame is adjusted manually, the problem of adjustment lag can occur, the consumption of the fuel gas is large, waste is caused, and the production cost is increased; 4. at present, the blown glass wool needs to be sent to a collecting device for collection under the action of a draught fan, so that the electric energy consumption is high, and the production cost is increased.
The invention content is as follows:
the first purpose of the invention is to provide a production system of microfiber glass wool, which has a simple structure and is easy to realize.
The second purpose of the invention is to provide a production method of microfiber glass wool, which realizes automatic control and improves the quality of the glass wool.
The invention discloses a microfiber glass wool production system, which comprises a melting kiln, a fuel gas source, a first air blower, a wire drawing bushing plate, a cotton blowing device, a second air blower, a gas mixing main pipe, a cotton collecting device and a controller, wherein gas outlets of the fuel gas source and the first air blower are communicated with a gas inlet of a combustion chamber of the melting kiln through a pipeline; a temperature sensor is arranged in the melting kiln; the wire drawing bushing plate is arranged at a liquid outlet of the melting kiln, and the cotton blowing device is arranged at a discharge outlet of the wire drawing bushing plate; the gas outlets of the fuel gas source and the second blower are respectively communicated with the gas inlet of the gas mixing main pipe through branch pipes; a pressure sensor is arranged on the gas mixing main pipe; a third flow sensor and a first regulating valve are arranged on a branch pipe between the fuel gas source and the gas mixing main pipe; a fourth flow sensor and a second regulating valve are arranged on a branch pipe between the second blower and the gas mixing main pipe; the air outlet of the air mixing header pipe is communicated with the air inlet of the cotton blowing device; the cotton collecting device is arranged at a discharge port of the cotton blowing device; the signal output ends of the first flow sensor, the second flow sensor, the temperature sensor, the pressure sensor, the third flow sensor and the fourth flow sensor are all in signal connection with the signal input end of the controller, and the signal output end of the controller is in signal connection with the signal input ends of the first electromagnetic valve, the second electromagnetic valve, the first regulating valve and the second regulating valve respectively.
Furthermore, the cotton collecting device comprises a plurality of cyclone separators, a cotton collecting machine, a packaging machine and a water mist dust removing device which are arranged in series; a feed inlet of the first cyclone separator is communicated with a feed delivery pipe, the feed inlet of the feed delivery pipe is opposite to the discharge outlet of the cotton blowing device, and an air outlet of each cyclone separator is communicated with the feed inlet of the next cyclone separator through a pipeline; the air outlet of the last cyclone separator is communicated with the air inlet of the water mist dust removal device through a pipeline; the discharge port of each cyclone separator is communicated with the corresponding cotton collecting machine through a pipeline, and a cotton storage bin is communicated with the discharge port of each cotton collecting machine; and the discharge port of each cotton storage bin is provided with the packer.
Further, the device also comprises a bin, wherein a discharge hole of the bin is communicated with a feed inlet of the melting kiln through a discharge pipe; a first electric gate valve is arranged at the discharge port of the storage bin; a weighing sensor is arranged on the discharge pipe; a second electric gate valve is arranged at the discharge port of the discharge pipe; a liquid level sensor is arranged in the melting kiln; the weighing sensor with level sensor's signal output part all with the signal input part of controller is through signal connection, the signal output part of controller respectively with the signal input part of first electronic push-pull valve with the electronic push-pull valve of second is through signal connection.
In another aspect of the present invention, a method for producing microfiber glass wool is also disclosed, which comprises the following steps: (1) heating and melting; (2) drawing wires; (3) blowing cotton;
(1) heating for melting: adding a certain amount of glass blocks into a melting kiln, introducing fuel gas and combustion-supporting gas into a combustion chamber of the melting kiln, igniting and heating to melt the glass blocks in the melting kiln into liquid;
(2) drawing: and (3) drawing the liquid obtained in the step (1) through a wire drawing bushing to obtain fine glass filaments.
(3) Blowing cotton: and (3) introducing the mixed gas of the fuel gas and the combustion-supporting gas into a cotton blowing device, igniting to form flame, blowing the glass fiber obtained in the step (2) by the formed flame, and blowing the glass fiber into glass cotton.
Further, adding a glass frit block into the melting furnace in the step (1): the liquid level sensor in the melting furnace feeds back a detected liquid level signal of the molten glass liquid to the controller, when the liquid level of the molten glass liquid is detected to be lower than a set value, the controller controls the first electric gate valve to be opened, a glass material block in the storage bin falls into the discharge pipe, and the weighing sensor feeds back a detected weight signal of the glass material block to the controller; when the weight of the glass material block is detected to reach a set value, the controller controls the first electric gate valve to be closed, and the second electric gate valve to be opened; putting the glass material blocks in the discharge pipe into a melting furnace; or when the glass material block in the discharge pipe is detected to be completely fed, the controller controls the first electric flashboard valve to be opened and the second electric flashboard valve to be closed, the glass material block in the bin continuously falls into the discharge pipe, the operation is repeated, and the glass material block in the bin is fed into the melting kiln in multiple times and in equal quantity; and when the liquid level sensor detects that the liquid level of the molten glass reaches a set value, the controller controls the first electric gate valve and the second electric gate valve to be closed, and the weighing sensor stops working, namely stops feeding into the melting kiln.
Further, the formed glass wool is blown to each cyclone separator in sequence through the blowing in the step (3) for separation and collection, and the glass wool collected by each cyclone separator is compressed once by a corresponding cotton collecting machine and then is compressed and packaged by a packaging machine to form finished products with different grades; and the gas discharged by the last cyclone separator is discharged after being dedusted by the water mist dedusting device.
Further, a preset value of the flow ratio of the fuel gas to the combustion-supporting gas which are sent into the melting kiln is 1:6 in the controller; the upper limit temperature value 1100 ℃ and the lower limit temperature value 1000 ℃ in the melting kiln are preset in the controller; the first flow sensor and the second flow sensor transmit the detected fuel gas flow value and the combustion-supporting gas flow value to the controller, and the temperature sensor transmits the detected temperature value of the glass liquid in the melting kiln to the controller; the controller carries out logic judgment, and when the flow ratio value of the fuel gas to the combustion-supporting gas is detected to be lower than a set value of 1:6, the controller controls the first electromagnetic valve to be adjusted to be large and the second electromagnetic valve to be adjusted to be small; or when the flow ratio value of the fuel gas and the combustion-supporting gas is detected to be higher than a set value of 1:6, the controller controls the first electromagnetic valve to be adjusted to be small and the second electromagnetic valve to be adjusted to be large; when the detected temperature value is lower than the lower limit temperature value by 1000 ℃, the controller simultaneously controls the first electromagnetic valve to be increased and the second electromagnetic valve to be increased; or when the detected temperature value is higher than the upper limit temperature value of 1100 ℃, the controller simultaneously controls the first electromagnetic valve to be reduced and the second electromagnetic valve to be reduced.
Further, a flow ratio set value of fuel gas and combustion-supporting gas which are sent into the cotton blowing device is preset in the controller to be 1:7, and a pressure set value of mixed gas is 0.4 MPa; the third flow sensor and the fourth flow sensor transmit the detected fuel gas flow value and the combustion-supporting gas flow value to the controller, and the pressure sensor transmits the detected pressure value of the mixed gas to the controller; the controller carries out logic judgment, and when the flow ratio value of the fuel gas to the combustion-supporting gas is detected to be lower than a set value of 1:7, the controller controls the first regulating valve to be adjusted to be large and the second regulating valve to be adjusted to be small; or when the flow ratio value of the fuel gas and the combustion-supporting gas is detected to be higher than a set value of 1:7, the controller controls the first regulating valve to be adjusted to be small and the second regulating valve to be adjusted to be large; when the detected pressure value of the mixed gas is lower than the set value of 0.4MPa, the controller simultaneously controls the first regulating valve and the second regulating valve to be increased; or when the detected pressure value of the mixed gas is higher than the set value by 0.4MPa, the controller simultaneously controls the first regulating valve and the second regulating valve to be reduced.
The invention has the advantages that: 1. the device has a simple structure, is easy to realize, realizes an automatic control function, controls the flow of fuel gas and combustion-supporting gas through the controller, does not need manual regulation, ensures that the temperature in the melting kiln is kept stable and uniform, avoids the phenomenon of unstable wire drawing, ensures the stability of the beating degree of glass wool, and further ensures the stable quality of the produced glass wool; 2. the flow of fuel gas and combustion-supporting gas entering the cotton blowing device is controlled by the controller, so that the pressure stability of flame airflow blown by the controller is ensured, the slag ball content in the glass wool product is reduced, and the quality of the glass wool is improved; 3. the flow of the fuel gas is controlled by the controller, so that the fuel gas is fully utilized, the use amount of the fuel gas is reduced, the waste of the fuel gas is avoided, and the production cost is further reduced; 4. when the cotton blowing device blows, the flame airflow blows the glass fibers into the glass cotton, and meanwhile, the glass cotton can be blown into the cotton receiving device, a draught fan is not needed, the electric energy consumption is reduced, and the production cost is reduced.
Description of the drawings:
fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.
Fig. 2 is a control block diagram of the present invention.
The device comprises a melting kiln 1, a fuel gas source 2, a first air blower 3, a wire drawing bushing 4, a cotton blowing device 5, a second air blower 6, a gas mixing header pipe 7, a cotton collecting device 8, a cyclone separator 8.1, a cotton collecting machine 8.2, a packaging machine 8.3, a water mist dust removal device 8.4, a material conveying pipe 8.5, a cotton storage bin 8.6, a controller 9, a storage bin 10, a first flow sensor 11, a first electromagnetic valve 12, a second flow sensor 13, a temperature sensor 14, a pressure sensor 15, a third flow sensor 16, a first regulating valve 17, a fourth flow sensor 18, a discharge pipe 19, a first electric gate valve 20, a weighing sensor 21, a second electric gate valve 22, a liquid level sensor 23, a second electromagnetic valve and a second regulating valve.
The specific implementation mode is as follows:
the present invention will be described in further detail by way of examples with reference to the accompanying drawings.
Example 1: as shown in fig. 1-2, a microfiber glass wool production system comprises a melting furnace 1, a fuel gas source 2, a first air blower 3, a wire drawing bushing 4, a cotton blowing device 5, a second air blower 6, a gas mixing header pipe 7, a cotton receiving device 8, a controller 9 and a storage bin 10, wherein gas outlets of the fuel gas source 2 and the first air blower 3 are communicated with a gas inlet of a combustion chamber of the melting furnace 1 through a pipeline, a first flow sensor 11 and a first electromagnetic valve 12 are arranged on the pipeline between the fuel gas source 2 and the melting furnace 1, and a second flow sensor 13 and a second electromagnetic valve are arranged on the pipeline between the first air blower 3 and the melting furnace 1; a temperature sensor 14 is arranged in the melting furnace 1; a wire drawing bushing 4 is arranged at a liquid outlet of the melting kiln 1, the wire drawing bushing 4 is disclosed by glass fiber bushing with the application number of CN201720399210.1, a cotton blowing device 5 is arranged at a discharge outlet of the wire drawing bushing 4, and the cotton blowing device 5 is disclosed by glass cotton wire blowing device with the application number of CN 201720402006.0; the gas outlets of the fuel gas source 2 and the second blower 6 are respectively communicated with the gas inlet of the gas mixing header pipe 7 through branch pipes; a pressure sensor 15 is arranged on the gas mixing main pipe 7; a third flow sensor 16 and a first regulating valve 17 are arranged on a branch pipe between the fuel gas source 2 and the gas mixing header pipe 7; a fourth flow sensor 18 and a second regulating valve are arranged on a branch pipe between the second blower 6 and the gas mixing main pipe 7; the air outlet of the air mixing header pipe 7 is communicated with the air inlet of the cotton blowing device 5; a cotton collecting device 8 is arranged at the discharge port of the cotton blowing device 5.
The cotton collecting device 8 comprises a plurality of cyclone separators 8.1, a cotton collecting machine 8.2, a packing machine 8.3 and a water mist dust removing device 8.4 which are arranged in series; a feed inlet of the first cyclone separator 8.1 is communicated with a feed delivery pipe 8.5, the feed inlet of the feed delivery pipe 8.5 is opposite to the discharge outlet of the cotton blowing device 5, and the air outlet of each cyclone separator 8.1 is communicated with the feed inlet of the next cyclone separator 8.1 through a pipeline; the air outlet of the last cyclone separator 8.1 is communicated with the air inlet of the water mist dust removal device 8.4 through a pipeline; the discharge port of each cyclone separator 8.1 is respectively communicated with a corresponding cotton harvester 8.2 through a pipeline, and a cotton storage bin 8.6 is communicated with the discharge port of each cotton harvester 8.2; a packer 8.3 is arranged at the discharge port of each cotton storage bin 8.6, and the packer 8.3 is disclosed by glass cotton online automatic packer with application number of CN 201720399209.9.
The discharge hole of the bin 10 is communicated with the feed inlet of the melting kiln 1 through a discharge pipe 19; a first electric gate valve 20 is arranged at the discharge outlet of the storage bin 10; a weighing sensor 21 is arranged on the discharge pipe 19; a second electric gate valve 22 is arranged at the discharge outlet of the discharge pipe 19; a level sensor 23 is arranged in the melting furnace 1.
The signal output ends of the first flow sensor 11, the second flow sensor 13, the temperature sensor 14, the pressure sensor 15, the third flow sensor 16, the fourth flow sensor 18, the weighing sensor 21 and the liquid level sensor 23 are in signal connection with the signal input end of the controller 9, and the signal output end of the controller 9 is in signal connection with the signal input ends of the first electromagnetic valve 12, the second electromagnetic valve, the first regulating valve 17, the second regulating valve, the first electric gate valve 20 and the second electric gate valve 22 respectively.
The invention has simple structure and easy realization, and realizes the automatic control function.
Example 2: a method of producing microfiber glass wool using the production system of example 1, comprising the steps of: (1) heating and melting; (2) drawing wires; (3) blowing cotton;
(1) heating for melting: adding a certain amount of glass blocks into a melting furnace 1, introducing fuel gas and combustion-supporting gas into a combustion chamber of the melting furnace 1, igniting and heating to melt the glass blocks in the melting furnace 1 into liquid;
(2) drawing: and (3) drawing the liquid obtained in the step (1) through a wire drawing bushing 4 to obtain fine glass filaments.
(3) Blowing cotton: and (3) introducing the mixed gas of the fuel gas and the combustion-supporting gas into a cotton blowing device 5, igniting to form flame, blowing the glass fiber obtained in the step (2) by the formed flame, and blowing the glass fiber into glass cotton.
Adding glass blocks into the melting furnace 1 in the step (1): a liquid level sensor 23 in the melting kiln 1 feeds back a detected liquid level signal of the molten glass liquid to the controller 9, when the liquid level of the molten glass liquid is detected to be lower than a set value, the controller 9 controls the first electric gate valve 20 to be opened, a glass material block in the storage bin 10 falls into the discharge pipe 19, and a weighing sensor 21 feeds back a detected weight signal of the glass material block to the controller 9; when the weight of the glass material block is detected to reach a set value, the controller 9 controls the first electric gate valve 20 to be closed and the second electric gate valve 22 to be opened; putting the glass blocks in the discharge pipe 19 into the melting furnace 1; or when the glass material blocks in the discharge pipe 19 are detected to be thrown completely, the controller 9 controls the first electric gate valve 20 to be opened, the second electric gate valve 22 to be closed, the glass material blocks in the storage bin 10 continuously fall into the discharge pipe 19, the operations are repeated, and the glass material blocks in the storage bin 10 are thrown into the melting kiln 1 in multiple times and in equal quantity; until the liquid level sensor 23 detects that the liquid level of the molten glass reaches a set value, the controller 9 controls the first electric gate valve 20 and the second electric gate valve 22 to be closed, and the weighing sensor 21 stops working, namely stops feeding into the melting kiln 1.
The formed glass wool is sequentially blown to each cyclone separator 8.1 for sorting and collection through the blowing in the step (3), a draught fan is not needed, the electric energy consumption is reduced, the production cost is reduced, the glass wool collected by each cyclone separator 8.1 is compressed once by a corresponding cotton collecting machine 8.2 and then is compressed and packaged by a packaging machine 8.3, and finished products with different grades are formed; and the gas discharged from the last cyclone separator 8.1 is discharged after being dedusted by a water mist dedusting device 8.4.
The flow ratio set value of the fuel gas and the combustion-supporting gas which are sent into the melting kiln 1 is preset in the controller 9 to be 1: 6; and presetting an upper limit temperature value of 1100 ℃ and a lower limit temperature value of 1000 ℃ in the melting kiln 1 in the controller 9; the first flow sensor 11 and the second flow sensor 13 transmit the detected fuel gas flow value and combustion-supporting gas flow value to the controller 9, and the temperature sensor 14 transmits the detected temperature value of the glass liquid in the melting kiln 1 to the controller 9; the controller 9 carries out logic judgment, and when the flow ratio value of the fuel gas and the combustion-supporting gas is detected to be lower than a set value of 1:6, the controller 9 controls the first electromagnetic valve 12 to be adjusted to be larger and the second electromagnetic valve to be adjusted to be smaller; or when the flow ratio value of the fuel gas and the combustion-supporting gas is detected to be higher than the set value of 1:6, the controller 9 controls the first electromagnetic valve 12 to be adjusted to be smaller and the second electromagnetic valve to be adjusted to be larger; when the detected temperature value is lower than the lower limit temperature value by 1000 ℃, the controller 9 simultaneously controls the first electromagnetic valve 12 to be increased and the second electromagnetic valve to be increased; or when the detected temperature value is higher than the upper limit temperature value of 1100 ℃, the controller 9 simultaneously controls the first electromagnetic valve 12 to be adjusted to be small, the second electromagnetic valve is adjusted to be small, the flow of the fuel gas and the combustion-supporting gas is controlled through the controller 9, manual adjustment is not needed, the temperature in the melting kiln 1 is ensured to be kept stable and uniform, the phenomenon of instability of the drawn wire is avoided, the beating degree stability of the glass wool is ensured, and the quality stability of the produced glass wool is further ensured.
Presetting a flow ratio set value of the fuel gas and the combustion-supporting gas which are sent into the cotton blowing device 5 in a ratio of 1:7 and a pressure set value of the mixed gas of 0.4MPa in a controller 9; the third flow sensor 16 and the fourth flow sensor 18 transmit the detected fuel gas flow value and combustion-supporting gas flow value to the controller 9, and the pressure sensor 15 transmits the detected pressure value of the mixed gas to the controller 9; the controller 9 carries out logic judgment, and when the flow ratio value of the fuel gas and the combustion-supporting gas is detected to be lower than a set value of 1:7, the controller 9 controls the first regulating valve 17 to be adjusted to be larger and the second regulating valve to be adjusted to be smaller; or when the flow ratio value of the fuel gas and the combustion-supporting gas is detected to be higher than the set value 1:7, the controller 9 controls the first regulating valve 17 to be adjusted to be small and the second regulating valve to be adjusted to be large; when the detected pressure value of the mixed gas is lower than the set value of 0.4MPa, the controller 9 simultaneously controls the first regulating valve 17 and the second regulating valve to be increased; or when the detected pressure value of the mixed gas is higher than the set value by 0.4MPa, the controller 9 simultaneously controls the first regulating valve 17 and the second regulating valve to be reduced; the controller 9 controls the flow of the fuel gas and the combustion-supporting gas entering the cotton blowing device 5, so that the pressure stability of flame airflow blown out by the controller is ensured, the slag ball content in the glass wool product is reduced, and the quality of the glass wool is improved.
The method of the invention is simple and easy to operate, the flow of the fuel gas is controlled by the controller 9, so that the fuel gas is fully utilized, the usage amount of the fuel gas is reduced, the waste of the fuel gas is avoided, and the production cost is further reduced.
Experiment 1: producing glass wool A by adopting fuel gas and combustion-supporting gas through a production method of manual regulation; the glass wool B is produced by the production method; the knocking degree and the slag ball content of the glass wool A and the glass wool B and the fuel gas amount used in the production process are detected, and the following results are obtained:
| glass wool A | Glass wool B | |
| Fluctuation value of beating degree | ±3 | ±2 |
| Shot content | ≤0.04％ | ≤0.02％ |
| Fuel gas usage | 100m3Hour/hour | 80m3Hour/hour |
As can be seen from the above table, the fluctuation value of the beating degree of the glass wool B becomes smaller than that of the glass wool a, and thereforeThe production method ensures the stability of the beating degree of the glass wool, thereby ensuring the stable quality of the glass wool; the slag ball content value of the glass wool B is lower than that of the glass wool A, which shows that the production method ensures the stable pressure of the blown flame airflow, further reduces the slag ball content in the glass wool product and improves the quality of the glass wool; the fuel gas consumption for producing the glass wool B is reduced by 20m compared with the fuel gas consumption for producing the glass wool A3The hour shows that the production method of the invention controls the flow of the fuel gas through the controller 9, so that the fuel gas is fully utilized, the use amount of the fuel gas is reduced, the waste of the fuel gas is avoided, and the production cost is further reduced.
The glass wool A blown by the induced draft fan is conveyed to the collecting device for collection in the process of producing the glass wool A, the electric energy consumed in the operation process of the induced draft fan is 35 kwh/h, and after the production method disclosed by the invention is adopted, the induced draft fan is not needed, so that the electric energy consumption of 35kwh per hour is reduced, and the production cost is reduced.
The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention, and such modifications and adaptations are intended to be included within the scope of the invention.
Claims (6)
1. A microfiber glass wool production system is characterized by comprising a melting kiln, a fuel gas source, a first air blower, a wire drawing bushing plate, a cotton blowing device, a second air blower, a gas mixing main pipe, a cotton collecting device and a controller, wherein gas outlets of the fuel gas source and the first air blower are communicated with a gas inlet of a combustion chamber of the melting kiln through a pipeline; a temperature sensor is arranged in the melting kiln; the wire drawing bushing plate is arranged at a liquid outlet of the melting kiln, and the cotton blowing device is arranged at a discharge outlet of the wire drawing bushing plate; the gas outlets of the fuel gas source and the second blower are respectively communicated with the gas inlet of the gas mixing main pipe through branch pipes; a pressure sensor is arranged on the gas mixing main pipe; a third flow sensor and a first regulating valve are arranged on a branch pipe between the fuel gas source and the gas mixing main pipe; a fourth flow sensor and a second regulating valve are arranged on a branch pipe between the second blower and the gas mixing main pipe; the air outlet of the air mixing header pipe is communicated with the air inlet of the cotton blowing device; the cotton collecting device is arranged at a discharge port of the cotton blowing device; the signal output ends of the first flow sensor, the second flow sensor, the temperature sensor, the pressure sensor, the third flow sensor and the fourth flow sensor are all in signal connection with the signal input end of the controller, and the signal output end of the controller is in signal connection with the signal input ends of the first electromagnetic valve, the second electromagnetic valve, the first regulating valve and the second regulating valve respectively.
2. A microfiber glass wool production system according to claim 1, wherein said cotton collecting device comprises a plurality of serially arranged cyclones, a cotton collecting machine, a baler and a water mist dust removing device; a feed inlet of the first cyclone separator is communicated with a feed delivery pipe, the feed inlet of the feed delivery pipe is opposite to the discharge outlet of the cotton blowing device, and an air outlet of each cyclone separator is communicated with the feed inlet of the next cyclone separator through a pipeline; the air outlet of the last cyclone separator is communicated with the air inlet of the water mist dust removal device through a pipeline; the discharge port of each cyclone separator is communicated with the corresponding cotton collecting machine through a pipeline, and a cotton storage bin is communicated with the discharge port of each cotton collecting machine; and the discharge port of each cotton storage bin is provided with the packer.
3. The system for producing microfiber glass wool according to claim 1, further comprising a bin, wherein a discharge port of the bin is communicated with a feed port of the melting kiln through a discharge pipe; a first electric gate valve is arranged at the discharge port of the storage bin; a weighing sensor is arranged on the discharge pipe; a second electric gate valve is arranged at the discharge port of the discharge pipe; a liquid level sensor is arranged in the melting kiln; the weighing sensor with level sensor's signal output part all with the signal input part of controller is through signal connection, the signal output part of controller respectively with the signal input part of first electronic push-pull valve with the electronic push-pull valve of second is through signal connection.
4. A method for producing microfiber glass wool using the production system of any one of claims 1 to 3, comprising the steps of: (1) heating and melting; (2) drawing wires; (3) blowing cotton;
(1) heating for melting: adding a certain amount of glass blocks into a melting kiln, introducing fuel gas and combustion-supporting gas into a combustion chamber of the melting kiln, igniting and heating to melt the glass blocks in the melting kiln into liquid; presetting a flow ratio set value of fuel gas and combustion-supporting gas which are sent into the melting furnace in a ratio of 1:6 in a controller; the upper limit temperature value 1100 ℃ and the lower limit temperature value 1000 ℃ in the melting kiln are preset in the controller; the first flow sensor and the second flow sensor transmit the detected fuel gas flow value and the combustion-supporting gas flow value to the controller, and the temperature sensor transmits the detected temperature value of the glass liquid in the melting kiln to the controller; the controller carries out logic judgment, and when the flow ratio value of the fuel gas to the combustion-supporting gas is detected to be lower than a set value of 1:6, the controller controls the first electromagnetic valve to be adjusted to be large and the second electromagnetic valve to be adjusted to be small; or when the flow ratio value of the fuel gas and the combustion-supporting gas is detected to be higher than a set value of 1:6, the controller controls the first electromagnetic valve to be adjusted to be small and the second electromagnetic valve to be adjusted to be large; when the detected temperature value is lower than the lower limit temperature value by 1000 ℃, the controller simultaneously controls the first electromagnetic valve to be increased and the second electromagnetic valve to be increased; or when the detected temperature value is higher than the upper limit temperature value of 1100 ℃, the controller simultaneously controls the first electromagnetic valve to be reduced and the second electromagnetic valve to be reduced;
(2) drawing: drawing the liquid obtained in the step (1) through a wire drawing bushing to obtain fine glass filaments;
(3) blowing cotton: introducing a mixed gas of fuel gas and combustion-supporting gas into a cotton blowing device, igniting to form flame, blowing the glass fiber obtained in the step (2) by the formed flame, and blowing the glass fiber into glass cotton; presetting a flow ratio set value of fuel gas and combustion-supporting gas which are sent into a cotton blowing device in a controller to be 1:7 and a pressure set value of mixed gas to be 0.4 MPa; the third flow sensor and the fourth flow sensor transmit the detected fuel gas flow value and the combustion-supporting gas flow value to the controller, and the pressure sensor transmits the detected pressure value of the mixed gas to the controller; the controller carries out logic judgment, and when the flow ratio value of the fuel gas to the combustion-supporting gas is detected to be lower than a set value of 1:7, the controller controls the first regulating valve to be adjusted to be large and the second regulating valve to be adjusted to be small; or when the flow ratio value of the fuel gas and the combustion-supporting gas is detected to be higher than a set value of 1:7, the controller controls the first regulating valve to be adjusted to be small and the second regulating valve to be adjusted to be large; when the detected pressure value of the mixed gas is lower than the set value of 0.4MPa, the controller simultaneously controls the first regulating valve and the second regulating valve to be increased; or when the detected pressure value of the mixed gas is higher than the set value by 0.4MPa, the controller simultaneously controls the first regulating valve and the second regulating valve to be reduced.
5. A production method of microfiber glass wool according to claim 4, wherein a glass gob is added into the melting furnace in the step (1): the liquid level sensor in the melting furnace feeds back a detected liquid level signal of the molten glass liquid to the controller, when the liquid level of the molten glass liquid is detected to be lower than a set value, the controller controls the first electric gate valve to be opened, a glass material block in the storage bin falls into the discharge pipe, and the weighing sensor feeds back a detected weight signal of the glass material block to the controller; when the weight of the glass material block is detected to reach a set value, the controller controls the first electric gate valve to be closed, and the second electric gate valve to be opened; putting the glass material blocks in the discharge pipe into a melting furnace; or when the glass material block in the discharging pipe is detected to be thrown completely, the controller controls the first electric flashboard valve to be opened, the second electric flashboard valve to be closed, the glass material block in the storage bin continuously falls into the discharging pipe, the operations are repeated until the liquid level sensor detects that the liquid level of the molten glass liquid reaches a set value, the controller controls the first electric flashboard valve and the second electric flashboard valve to be closed, and the weighing sensor stops working.
6. A microfiber glass wool production method according to claim 4, wherein the formed glass wool is blown to each cyclone in sequence by the blowing in the step (3) for sorting and collection, and the glass wool collected by each cyclone is compressed once by a corresponding cotton harvester and then is compressed and packaged by a packaging machine to form finished products of different grades; and the gas discharged by the last cyclone separator is discharged after being dedusted by the water mist dedusting device.
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