CN212607737U - Air purging device for conveying and blanking blast furnace granulated slag - Google Patents
Air purging device for conveying and blanking blast furnace granulated slag Download PDFInfo
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- CN212607737U CN212607737U CN202021148783.5U CN202021148783U CN212607737U CN 212607737 U CN212607737 U CN 212607737U CN 202021148783 U CN202021148783 U CN 202021148783U CN 212607737 U CN212607737 U CN 212607737U
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Abstract
The utility model provides an air purging device for conveying blanking of blast furnace granulated slag, which comprises a fan, an air pipe, an air nozzle and a gas conveying pipe, wherein the fan is fixedly connected on the upper surface of a base so as to provide an air source; the air pipe penetrates through the fixed support and is fixed on the fixed support, one end of the air pipe extends upwards and is communicated with the fan through the air conveying pipe, the other end of the air pipe extends downwards and is sealed, fixedly connected ports are symmetrically distributed in the central area of the air pipe, and the fixedly connected ports are in threaded connection with the air nozzles and used for conveying the air output by the fan; the air pipe and the air nozzle are combined and then arranged below a return belt of the head driving roller and fixed through a belt conveyor bracket so as to carry out air blowing on blast furnace granulated slag adhered to the conveying belt, and the blown blast furnace granulated slag directly enters a feed opening below the air pipe for subsequent grinding; through the actual test, the utility model discloses an air sweeps the device and sweeps the effect obvious, and the belt returns a large amount of reductions of journey blanking, has effectively solved a large amount of blanking problems in the blast furnace water slag belt transport returns journey.
Description
Technical Field
The utility model belongs to the technical field of building materials trade production facility, concretely relates to an air sweeps device that is used for blanking is carried to blast furnace grain slag.
Background
Immediately grind in slay miropowder production process, the raw materials (blast furnace grain slag) is carried to the mill interior grinding through the belt feeder, because blast furnace grain slag has very high adhesiveness, the belt feeder can't be cleaned it completely from the belt surface from the cleaning device (if scrape the flitch) of taking, at the belt in-process of returning journey, can produce a large amount of blanks, causes environmental pollution promptly and influences the equipment operation again, needs the manual work to clear away, and the manual work cleans the operation volume greatly and labour cost height.
At present, aiming at the problem of the blanking of the blast furnace granulated slag, a common method is to additionally install mechanical cleaning devices such as a scraping plate, a cleaner or a roller brush and the like for cleaning, and the cleaning effect is obviously reduced along with the abrasion of the devices; in addition, a compressed air blowing mode with an air compressor as an air source is adopted, the blowing effect is better than that of a mechanical cleaning mode, and the early-stage investment cost and the energy consumption are high.
SUMMERY OF THE UTILITY MODEL
A large amount of blanking problems to long-term puzzlement blast furnace water cinder belt transportation in the prior art, the utility model aims at providing an air sweeps device for blanking is carried to blast furnace water cinder has energy-efficient and the stable efficient characteristics of wind regime output.
In order to achieve the above purpose, the utility model discloses a solution is:
an air purging device for conveying and blanking blast furnace granulated slag comprises a fan, an air pipe, an air nozzle and a gas conveying pipe.
The fan is fixedly connected to the upper surface of the base to provide an air source.
The air pipe penetrates through the fixed support and is fixed on the fixed support, one end of the air pipe extends upwards and is communicated with the fan through the air conveying pipe, and the other end of the air pipe extends downwards and is sealed; the central area of the air pipe is symmetrically distributed with fixed connection ports, and the fixed connection ports are connected with the air nozzles through threads so as to be used for conveying the air output by the fan.
The air pipe and the air nozzle are combined and then arranged below a return belt of a driving roller of the head, and are fixed through a fixing support arranged on a belt conveyor support, so that air blowing is carried out on blast furnace granulated slag adhered to a conveying belt, and the blown blast furnace granulated slag directly enters a feed opening below the air pipe to be ground subsequently.
Furthermore, the included angle between the air nozzle and the plane of the belt is 60-90 degrees, and the linear distance between the head of the air nozzle and the surface of the belt is 5-15 cm.
Furthermore, one end of the air pipe connected with the air conveying pipe is an air inlet, and a 90-degree elbow is arranged in the air inlet.
Furthermore, one end of the air conveying pipe is connected with an air outlet of the fan through an anchor ear, and the other end of the air conveying pipe is connected with an air inlet of the air pipe through the anchor ear.
Furthermore, the power of the fan is 7.5KW, and the flow rate is 0-1800m3A pressure of 0 to 300 mbar.
Furthermore, the air pipe and the fixed connection port are connected in a welding mode, threads are arranged in the fixed connection port, and the fixed connection port is connected with the air nozzle through G3/4 threads.
Furthermore, the air pipe and the air nozzle are both made of SUS304 stainless steel.
Further, the length of the air duct is 650-2000mm, and the diameter is 60-80 mm.
Furthermore, the gas delivery pipe adopts a polyvinyl chloride transparent steel wire hose with the diameter of 60-80 mm.
When the vertical mill is in work, the output air of the fan is output at a high speed through the air nozzle to carry out air blowing on the blast furnace granulated slag adhered on the conveying belt, and the blown blast furnace granulated slag directly enters the feed opening and enters the vertical mill production equipment to carry out subsequent grinding work.
Due to the adoption of the scheme, the beneficial effects of the utility model are that:
through the actual test, the utility model discloses an air sweeps the device and sweeps the effect obvious, and the belt returns the round trip blanking and reduces in a large number, and the frequency that the round trip belt blanking was cleaned is by original 3 times/day, reduces and cleans 1 time for 14 days, greatly reduced artifical work volume and the labour cost of cleaning, effectively solved a large amount of blanking problems in the blast furnace water slag belt transport returns. Compared with the prior air blowing mode which adopts an air compressor as an air source, the device has the characteristics of low investment cost, stable air source, high efficiency, energy conservation, convenient installation, obvious blowing effect and the like.
Drawings
Fig. 1 is a schematic structural view of the air purging device of the present invention.
Fig. 2 is the installation position of the air pipe and the tuyere and the purging schematic diagram of the present invention.
Reference numerals: 1-a fan, 2-an air pipe, 3-a tuyere, 4-a gas conveying pipe, 5-an anchor ear, 6-a base, 7-a fixed support, 8-blast furnace granulated slag, 9-a belt, 10-a driving roller, 11-adhesive blast furnace granulated slag, 12-a scraper plate, 13-a direction-changing roller, 14-a blanking pipe, 15-a blanking port and 16-a belt conveyor support.
Detailed Description
The utility model provides an air purging device for conveying blanking of blast furnace granulated slag.
As shown in figures 1 and 2, the air purging device for conveying blanking of blast furnace granulated slag of the utility model comprises a fan 1, an air pipe 2, a tuyere 3 and a gas conveying pipe 4. Wherein, the fan 1 is fixedly connected on the upper surface of the base 6 to provide an air source; the air pipe 2 penetrates through the fixing support 7 and is fixed on the fixing support, one end of the air pipe extends upwards and is communicated with the fan 1 through the air conveying pipe 4, and the other end of the air pipe extends downwards and is sealed. Fixedly connected ports are symmetrically distributed in the central area of the air pipe 2, and the fixedly connected ports are in threaded connection with the air nozzles 3 and used for conveying the output air of the fan; the air pipe 2 and the air nozzle 3 are combined and then arranged below a return belt of a driving roller 10 of the head part through a fixing support 7 arranged on a belt conveyor support, so that air blowing is carried out on blast furnace granulated slag 11 adhered to the conveying belt, and the blown blast furnace granulated slag 8 directly enters a feed opening 15 below the air pipe 2 for subsequent grinding.
As an optimized embodiment of the utility model, tuyere 3 and the planar contained angle alpha of belt 9 are 60-90, specifically according to job site equipment actual conditions angle regulation to the best angle is confirmed in the test, and the best angle of the 650mm belt of this experimental test is 75. The linear distance h between the head of the air nozzle 3 and the surface of the belt 9 is 5-15cm, and is adjusted according to the actual condition of the working field equipment, so that the optimal distance is determined, and the optimal distance of the 650mm belt tested by the experiment is 7 cm.
As a preferred embodiment of the present invention, the power of the fan 1 is 7.5KW, and the flow rate can be 0-1800m3H, preferably 1800m3H; the pressure may be from 0 to 300mbar, preferably 300 mbar. The fan 1 of this embodiment is high-speed centrifugation integral type fan, and fan 1 is equipped with the high-efficient motor of permanent magnetism, possesses the frequency modulation function, mainly provides stable efficient wind regime for this device. The permanent magnet efficient motor is directly driven by adopting a high-speed motor in a variable frequency mode, other wearing parts such as a belt and a tensioning wheel system are omitted, the permanent magnet efficient motor has the characteristics of high rotating speed, maintenance-free performance, higher stability and longer service life; it is small and light, thus facilitating transportation and installation.
In fact, the fan 1 is designed by combining a three-dimensional flow theory and an aerodynamic technology, saves more than 30% of electricity compared with a similar high-speed centrifugal fan, generates a pressure flow of 7.5KW equal to a pressure flow of 11KW of a common fan, and can save 25000 ℃ of electricity every year; its efficiency is higher, under the same energy consumption and pressure, so the air quantity of fan 1 is more than 30% than that of similar energy-saving high-speed centrifugal fan.
As a preferred embodiment of the utility model, the wind pipe 2 is connected with the fixed connection port in a welding mode, the fixed connection port is internally provided with threads and is connected with the tuyere 3 through G3/4 threads, thereby being convenient for installation and replacement; in addition, the circular caliber of the tuyere 3 has the characteristic of high output wind speed. The air pipe 2 and the air nozzle 3 are both made of SUS304 stainless steel, and have the characteristics of corrosion resistance and low pressure loss.
Wherein, the air duct 2 is determined to have an overall length of 1100mm and a diameter of 76mm for a conveying belt having a width of 650mm in consideration of the installation position. The air pipe 2 penetrates through the fixing support 7 and is fixed on the fixing support, one end of the air pipe 2 extends upwards to form an air inlet (is provided with a 90-degree elbow), and the other end of the air pipe 2 extends downwards and is sealed. According to the width of the belt 9 and the requirement of ensuring that the output wind speed of each tuyere 3 is more than 100m/s (the blowing effect is best after the tested wind speed is achieved), fixed connection ports (the height of the fixed connection port is 2cm, the outer diameter is 32mm, G3/4 threads are processed in the fixed connection port, the fixed connection port is connected with the wind pipe 2 in a welding mode, threaded holes are processed after welding, and the length of the G3/4 threaded connection is 1cm, and the caliber is 14mm) of threaded connection of 11 tuyeres 3 are determined. The air pipe 2 is mainly used for conveying the air output by the fan 1. It has the characteristics of corrosion resistance and low pressure loss.
The air nozzles 3 are used for outputting the air output by the fan 1 at a high speed, so that 11 air nozzles 3 are configured, wherein the total length of the air nozzles 3 is 7 cm; air flow per nozzle 3 at different pressures: 100mbar-57m3/h、125mbar-63m3/h、160mbar-59m3/h、175mbar-74m3H is used as the reference value. The wind turbine has the characteristics of corrosion resistance, low pressure loss and high output wind speed.
As the utility model discloses a preferred embodiment, because of the high-speed defeated air of fan 1 is high-pressure air, has certain temperature simultaneously, the event is the transparent wire hose of PVC of diameter 76mm for use of the gas delivery pipe 4 of this device, the process transmission of the defeated air of mainly used fan 1. One end of the air conveying pipe 4 is connected with an air outlet of the fan 1 through an anchor ear 5, and the other end of the air conveying pipe is connected with an air inlet of the air pipe 2 through the anchor ear 5. It has high temperature resistant, high pressure and connects convenient characteristics.
As shown in fig. 1 and fig. 2, the working process of the air purging device of the present invention is:
1. the fan 1 is fixedly arranged on the upper surface of the base 6.
2. Install tuyere 3 on tuber pipe 2 through threaded connection mode, then set up tuber pipe 2 and tuyere 3 combination below the drive drum 10 return belt of head to fix through locating fixed bolster 7 on belt feeder support 16, the combination below is unloading pipe 14, and the last port of unloading pipe 14 is feed opening 15.
3. The air delivery pipe 4 is respectively connected with the air outlet of the fan 1 and the air inlet port of the air pipe 2 by using a hoop 5.
4. After the device is connected and fixed, the test work is started:
after the power supply system is powered on, the driving roller 10 starts to operate and drives the belt 9 to rotate, and the blast furnace granulated slag 8 is conveyed forward towards the blanking pipe 14 through the operating belt 9; the belt 9 moves to the tail end of the driving roller 10 and changes into reverse movement of the return stroke, at the moment, the blast furnace granulated slag 8 conveyed on the belt 9 falls into the feed opening 15 and enters the grinding machine for grinding through the feed pipe 14. Meanwhile, the fan 1 in the device starts to run stably after being powered on and outputs high-speed air, the high-speed air reaches the air pipe 2 through the air conveying pipe 4 and is sprayed out at a high speed through the air nozzle 3, and the adhered blast furnace granulated slag 11 still adhered to the belt 9 after passing through the scraper 12 is swept; the blown-off adhered blast furnace slag 11 falls into a feed opening 15 and enters a grinding machine for grinding through a feed pipe 14. The belt 9 is redirected to continue the reverse operation after traveling to the redirecting drum 13.
The device can continuously operate and continuously sweep the blast furnace granulated slag 11 adhered to the belt 9, thereby reducing the blanking condition of the belt 9 in the subsequent return stroke operation process.
5. And continuously adjusting the surface positions and angles of the air nozzles 3 and the belt 9 according to the test effect until the effect is optimal. The optimum angle for the 650mm belt tested in this experiment was 75 ° and the optimum distance was 7 cm.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. It will be readily apparent to those skilled in the art that various modifications to these embodiments and the generic principles defined herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above-described embodiments. Those skilled in the art should appreciate that, in view of the principles of the present invention, modifications and variations may be made without departing from the scope of the invention.
Claims (9)
1. The utility model provides an air purge device that is used for blast furnace grain slag to carry blanking which characterized in that: the device comprises a fan (1), an air pipe (2), an air nozzle (3) and a gas conveying pipe (4);
the fan (1) is fixedly connected to the upper surface of the base (6) to provide a wind source;
the air pipe (2) penetrates through the fixed support (7) and is fixed on the fixed support, one end of the air pipe extends upwards and is communicated with the fan (1) through the air conveying pipe (4), and the other end of the air pipe extends downwards and is sealed; fixedly connected ports are symmetrically distributed in the central area of the air pipe (2), and the fixedly connected ports are in threaded connection with the air nozzle (3) and used for conveying the air output by the fan (1);
the air pipe (2) and the air nozzle (3) are combined and then arranged below a return belt of a driving roller (10) of the head, and are fixed through a fixing support (7) arranged on a belt conveyor support (16) so as to carry out air blowing on blast furnace water granulated slag (11) adhered to the conveying belt, and blown blast furnace water granulated slag (8) directly enters a discharging port (15) below the air pipe (2) to be ground.
2. An air purge device as claimed in claim 1, wherein: the included angle between the air nozzle (3) and the plane of the belt (9) is 60-90 degrees, and the linear distance between the head of the air nozzle (3) and the surface of the belt (9) is 5-15 cm.
3. An air purge device as claimed in claim 1, wherein: one end of the air pipe (2) connected with the air delivery pipe (4) is an air inlet, and a 90-degree elbow is arranged in the air inlet.
4. An air purge device according to any one of claims 1-3, wherein: one end of the gas conveying pipe (4) is connected with an air outlet of the fan (1) through the hoop (5), and the other end of the gas conveying pipe is connected with an air inlet of the air pipe (2) through the hoop (5).
5. An air purge device as claimed in claim 1, wherein: the power of the fan (1) is 7.5KW, and the flow is 0-1800m3A pressure of 0 to 300 mbar.
6. An air purge device as claimed in claim 1, wherein: the air pipe (2) is connected with the fixed connection port in a welding mode, threads are arranged in the fixed connection port, and the fixed connection port is connected with the air nozzle (3) through G3/4 threads.
7. An air purge device as claimed in claim 1, wherein: the air pipe (2) and the air nozzle (3) are both made of SUS304 stainless steel.
8. An air purge device as claimed in claim 1, wherein: the length of the air pipe (2) is 650-2000mm, and the diameter is 60-80 mm.
9. An air purge device as claimed in claim 1, wherein: the gas conveying pipe (4) adopts a polyvinyl chloride transparent steel wire hose with the diameter of 60-80 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021148783.5U CN212607737U (en) | 2020-06-19 | 2020-06-19 | Air purging device for conveying and blanking blast furnace granulated slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021148783.5U CN212607737U (en) | 2020-06-19 | 2020-06-19 | Air purging device for conveying and blanking blast furnace granulated slag |
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| Publication Number | Publication Date |
|---|---|
| CN212607737U true CN212607737U (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021148783.5U Active CN212607737U (en) | 2020-06-19 | 2020-06-19 | Air purging device for conveying and blanking blast furnace granulated slag |
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| Country | Link |
|---|---|
| CN (1) | CN212607737U (en) |
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- 2020-06-19 CN CN202021148783.5U patent/CN212607737U/en active Active
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