CN203436958U - Frequency-conversion energy-saving dedusting device of coal mill of cement production line - Google Patents
Frequency-conversion energy-saving dedusting device of coal mill of cement production line Download PDFInfo
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- CN203436958U CN203436958U CN201320486387.7U CN201320486387U CN203436958U CN 203436958 U CN203436958 U CN 203436958U CN 201320486387 U CN201320486387 U CN 201320486387U CN 203436958 U CN203436958 U CN 203436958U
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Abstract
The utility model relates to an energy-saving dedusting device, in particular to a frequency-conversion energy-saving dedusting device of a coal mill of a cement production line. The dedusting device comprises the coal mill (4), a coal mill air discharge pipe (5), a powder selector (6), a bag-type dust collector (8), a coal mill exhaust fan (10), a controller (11), a vector frequency converter (12) as well as a hot air valve (13), a cold air valve (14), an air inlet pressure transformer (15), a temperature measuring probe (16) and an air outlet pressure transformer (17), wherein the air inlet pressure transformer (15), the air outlet pressure transformer (17) and the temperature measuring probe (16) are connected with the controller (11); the controller (11) is connected with the hot air valve (13), the cold air valve (14) and the vector frequency converter (12); the vector frequency converter (12) is connected with the coal mill exhaust fan (10). The dedusting device is simple in structure, the air inlet amount can be effectively controlled, the exhaust fan can be stably, safely and reliably operated, the operation efficiency is improved, the energy consumption is reduced, and the normal operation of the dedusting is ensured.
Description
Technical field
The utility model relates to a kind of energy-saving duster, especially relates to a kind of cement producing line coal mill energy-saving and frequency-variable dust arrester.
Background technology
At present, along with increasingly sharpening of cement production enterprise competition, the height of production cost has determined the status of cement production enterprise in market competition, and cement production enterprise greatly cost is wasted in energy consumption, and the power consumption in reduction cement production process has more and more caused the attention of industry.In the processing procedure of cement products, motor load power consumption just accounts for cost nearly 30%, and the high-tension motor that Driving Fan is used occupies very large proportion in motor, for a cement producing line, wherein having 25%～30% electric energy is for dragging all kinds blower fan.In cement producing line, the hot blast that enters coal mill will be controlled at certain temperature, the gas of discharging is discharged by coal mill exhaust blower after bagroom, bagroom has certain requirement to air inlet, just can prevent the aging of cloth bag, originally the mixing of air inlet is generally controlled by the valve of each air inlet pipe, hand labor power is large and can not accomplish real-time control, the gas that enters bagroom does not reach requirement, can make the cloth bag in bagroom aging, in the process of gathering dust, can cause cloth bag to stop up, cause cloth bag wearing and tearing, perforation, the phenomenon such as come off, make coal mill exhaust blower resistance increment, negative pressure raises, blower fan load is increased causes overload to shut down, the frequent appearance meeting of this phenomenon causes damage to coal mill exhaust blower motor, affect the normal operation of coal mill dust arrester.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of cement producing line coal mill energy-saving and frequency-variable dust arrester, object is can automatically regulate the EAT of cement producing line coal mill energy-saving and frequency-variable dust arrester and go out wind pressure, real time temperature, air quantity control have been realized, control accuracy is high, is conducive to improve operational efficiency, significantly reduces energy consumption, the not frequent chaser of motor, guarantees the normal operation of dedusting work.
For achieving the above object, the technical solution that the utility model adopts is:
Cement producing line coal mill energy-saving and frequency-variable dust arrester, comprises that warm-air pipe, cool air hose, mixing airduct, coal mill, coal grind airduct, powder concentrator, powder concentrator discharge pipe, sack cleaner, exhaust duct, coal mill exhaust blower, controller, vector frequency converter; Warm-air pipe, cool air hose and mixing airduct are communicated with, mix air inlet, coal that airduct is connected on coal mill and grind air port and by coal, grind that airduct is communicated with powder concentrator air inlet, air outlet of powder concentrator is communicated with sack cleaner air inlet by powder concentrator discharge pipe, and sack cleaner air outlet grinds exhaust blower by exhaust duct and coal and is communicated with; Warm-air pipe is provided with Hot-blast valve, and cool air hose is provided with cold wind valve, and powder concentrator discharge pipe is provided with air intake pressure transmitter and temperature probe near sack cleaner air inlet place, and exhaust duct is provided with air-out pressure transmitter; Air intake pressure transmitter, air-out pressure transmitter and temperature probe are connected with controller by holding wire, controller is connected with Hot-blast valve, cold wind valve and vector frequency converter signal input part by control line, and the output of vector frequency converter is connected with the drive motors of coal mill exhaust blower.
Described sack cleaner is protected against explosion air box impulse sack cleaner.
Described controller is DCS main frame.
Described Hot-blast valve, cold wind valve are electrically operated valve.
Described holding wire and control line are shielding line.
During work, the waste heat waste gas that kiln internal combustion produces mixes with the cold air entering by cold wind valve through the Hot-blast valve on warm-air pipe, mist enters in coal mill material is dried, the gas that coal mill is discharged enters after sack cleaner dedusting after powder concentrator selects powder again, by coal mill exhaust blower, is discharged.Temperature probe is passed to controller by the gas temperature that enters sack cleaner recording, and controller is controlled the switching amount of Hot-blast valve, cold wind valve, makes the gas temperature that enters sack cleaner in certain scope; Air intake pressure transmitter, air-out pressure transmitter are passed to controller by the air pressure signal into and out of sack cleaner recording, controller is controlled vector frequency converter, thereby control the rotating speed of coal mill exhaust blower, cloth bag in bagroom is aging, in the time of can causing cloth bag to stop up in the process of gathering dust, cause coal mill exhaust blower load to increase, vector frequency converter governing system breaks down, vector frequency converter automatically switches to power frequency operation, guarantees the normal operation of cement producing line coal mill energy-saving and frequency-variable dust arrester.
the beneficial effects of the utility model:
The utility model is simple in structure, and holding wire and control line adopt shielding line, have higher transfer rate and good anti-electromagnetic interference capability, can in harsh industrial environment, work, and are applicable to manufacture of cement; Sack cleaner is the safety and efficiently that protected against explosion air box impulse sack cleaner can guarantee dedusting work; Controller is that DCS main frame can carry out automation control to each equipment, reduces personnel's working strength, and the intake of each valve can effectively be controlled, thereby guarantees sack cleaner EAT within the specific limits; Vector frequency converter makes coal mill exhaust blower stable and safe in operation reliable, realized the continuous control of coal mill exhaust air rate, control accuracy is high, is conducive to improve the operational efficiency of coal mill exhaust blower, reduced the energy consumption of coal mill exhaust blower, reduce motor noise, only realize soft start and soft stop, reduce the impact of electrical network starting current, reliability is high, reduced maintenance cost, not frequent chaser, has guaranteed the normal operation of dedusting work.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1-warm-air pipe, 2-cool air hose, 3-mixing airduct, 4-coal mill, 5-coal grind airduct, 6-powder concentrator, 7-powder concentrator discharge pipe, 8-sack cleaner, 9-exhaust duct, 10-coal mill exhaust blower, 11-controller, 12-vector frequency converter, 13-Hot-blast valve, 14-cold wind valve, 15-air intake pressure transmitter, 16-temperature probe, 17-air-out pressure transmitter, 18-holding wire, 19-control line.
The specific embodiment
embodiment 1
As shown in Figure 1, cement producing line coal mill energy-saving and frequency-variable dust arrester, comprises that warm-air pipe 1, cool air hose 2, mixing airduct 3, coal mill 4, coal grind airduct 5, powder concentrator 6, powder concentrator discharge pipe 7, sack cleaner 8, exhaust duct 9, coal mill exhaust blower 10, controller 11, vector frequency converter 12; Warm-air pipe 1, cool air hose 2 and mix airduct 3 and is communicated with, mixes air inlet, coal that airduct 3 is connected on coal mill 4 and grind 4 air outlets and by coal, grind that airduct 5 is communicated with powder concentrator 6 air inlets, powder concentrator 6 air outlets are communicated with sack cleaner 8 air inlets by powder concentrator discharge pipe 7, sack cleaner 8 air outlets pass through exhaust duct 9 and coal and grind exhaust blower 10 and be communicated with; Warm-air pipe 1 is provided with Hot-blast valve 13, and cool air hose 2 is provided with cold wind valve 14, and powder concentrator discharge pipe 7 is provided with air intake pressure transmitter 15 and temperature probe 16 near sack cleaner 8 air inlet places, and exhaust duct 9 is provided with air-out pressure transmitter 17; Air intake pressure transmitter 15, air-out pressure transmitter 17 and temperature probe 16 are connected with controller 11 by holding wire 18, controller 11 is connected with Hot-blast valve 13, cold wind valve 14 and vector frequency converter 12 signal input parts by control line 19, and the output of vector frequency converter 12 is connected with the drive motors of coal mill exhaust blower 10.
Described sack cleaner 8 is protected against explosion air box impulse sack cleaner.
Described controller 11 is DCS main frame.
Described Hot-blast valve 13, cold wind valve 14 are electrically operated valve.
Described holding wire 18 and control line 19 are shielding line.
During work, the waste heat waste gas that kiln internal combustion produces mixes with the cold air entering by cold wind valve 14 through the Hot-blast valve 13 on warm-air pipe 1, mist enters coal and grinds 4 and interior material is dried, the gas that coal mill 4 is discharged enters after sack cleaner 8 dedustings after powder concentrator 6 selects powder again, by coal mill exhaust blower 10, is discharged.Temperature probe 16 is passed to controller 11 by the gas temperature that enters sack cleaner 8 recording, and the switching amount of 11 pairs of Hot-blast valves 13 of controller, cold wind valve 14 is controlled, and makes the gas temperature that enters sack cleaner 8 in certain scope; Air intake pressure transmitter 15, air-out pressure transmitter 17 are passed to controller 11 by the air pressure signal into and out of sack cleaner 8 recording, 11 pairs of vector frequency converters 12 of controller are controlled, thereby control the rotating speed of coal mill exhaust blower 10, cloth bag in bagroom 8 is aging, in the time of can causing cloth bag to stop up in the process of gathering dust, cause coal mill exhaust blower 10 loads to increase, vector frequency converter 12 governing systems break down, vector frequency converter 12 automatically switches to power frequency operation, guarantees the normal operation of cement producing line coal mill energy-saving and frequency-variable dust arrester.
Claims (6)
1. cement producing line coal grinds energy-saving and frequency-variable dust arrester, it is characterized in that, comprise that warm-air pipe (1), cool air hose (2), mixing airduct (3), coal mill (4), coal grind airduct (5), powder concentrator (6), powder concentrator discharge pipe (7), sack cleaner (8), exhaust duct (9), coal mill exhaust blower (10), controller (11), vector frequency converter (12); Warm-air pipe (1), cool air hose (2) and mix airduct (3) and is communicated with, mixes air inlet, coal mill (4) air outlet that airduct (3) is connected on coal mill (4) and by coal, grind that airduct (5) is communicated with powder concentrator (6) air inlet, powder concentrator (6) air outlet passes through powder concentrator discharge pipe (7) and is communicated with sack cleaner (8) air inlet, sack cleaner (8) air outlet passes through exhaust duct (9) and coal and grinds exhaust blower (10) and be communicated with; Warm-air pipe (1) is provided with Hot-blast valve (13), cool air hose (2) is provided with cold wind valve (14), powder concentrator discharge pipe (7) is provided with air intake pressure transmitter (15) and temperature probe (16) near sack cleaner (8) air inlet place, and exhaust duct (9) is provided with air-out pressure transmitter (17); Air intake pressure transmitter (15), air-out pressure transmitter (17) and temperature probe (16) are connected with controller (11) by holding wire (18), controller (11) is connected with Hot-blast valve (13), cold wind valve (14) and vector frequency converter (12) signal input part by control line (19), and the output of vector frequency converter (12) is connected with the drive motors of coal mill exhaust blower (10).
2. cement producing line coal grinds energy-saving and frequency-variable dust arrester according to claim 1, it is characterized in that, described sack cleaner (8) is protected against explosion air box impulse sack cleaner.
3. cement producing line coal grinds energy-saving and frequency-variable dust arrester according to claim 1, it is characterized in that, described controller (11) is DCS main frame.
4. according to cement producing line coal mill energy-saving and frequency-variable dust arrester described in claim 1-3 any one, it is characterized in that, described Hot-blast valve (13), cold wind valve (14) are electrically operated valve.
5. according to cement producing line coal mill energy-saving and frequency-variable dust arrester described in claim 1-3 any one, it is characterized in that, described holding wire (18) and control line (19) are shielding line.
6. cement producing line coal grinds energy-saving and frequency-variable dust arrester according to claim 4, it is characterized in that, described holding wire (18) and control line (19) are shielding line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486387.7U CN203436958U (en) | 2013-08-12 | 2013-08-12 | Frequency-conversion energy-saving dedusting device of coal mill of cement production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486387.7U CN203436958U (en) | 2013-08-12 | 2013-08-12 | Frequency-conversion energy-saving dedusting device of coal mill of cement production line |
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| Publication Number | Publication Date |
|---|---|
| CN203436958U true CN203436958U (en) | 2014-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320486387.7U Expired - Lifetime CN203436958U (en) | 2013-08-12 | 2013-08-12 | Frequency-conversion energy-saving dedusting device of coal mill of cement production line |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103861393A (en) * | 2014-02-21 | 2014-06-18 | 江苏常净环保科技有限公司 | Bag-type deduster capable of monitoring air pressure in real time |
| CN108097388A (en) * | 2017-12-27 | 2018-06-01 | 唐山博全实业有限公司 | A kind of ball mill heating plant and heat supply method |
-
2013
- 2013-08-12 CN CN201320486387.7U patent/CN203436958U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103861393A (en) * | 2014-02-21 | 2014-06-18 | 江苏常净环保科技有限公司 | Bag-type deduster capable of monitoring air pressure in real time |
| CN108097388A (en) * | 2017-12-27 | 2018-06-01 | 唐山博全实业有限公司 | A kind of ball mill heating plant and heat supply method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Yuxi City, Yunnan Province, 651107 street town of Yimen County Patentee after: Yunnan Zhong Rui (Group) building materials Co., Ltd. Address before: Yuxi City, Yunnan Province, 651107 street town of Yimen County Patentee before: Yunnan Yimen Zhongrui (Group) building materials Co. Ltd. |
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| CP01 | Change in the name or title of a patent holder |