CN205540169U - Stifled system is surveyed to blast furnace stokehold coal powder injection coal rifle - Google Patents
Stifled system is surveyed to blast furnace stokehold coal powder injection coal rifle Download PDFInfo
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- CN205540169U CN205540169U CN201620136986.XU CN201620136986U CN205540169U CN 205540169 U CN205540169 U CN 205540169U CN 201620136986 U CN201620136986 U CN 201620136986U CN 205540169 U CN205540169 U CN 205540169U
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Abstract
The utility model relates to a stifled system is surveyed to blast furnace stokehold coal powder injection coal rifle, including the host computer, host computer electric connection the control unit, the control unit includes controller and control switch, still include temperature measurement circuit, time control circuit, warning circuit and temperature display circuit, controller electric connection temperature measurement circuit, time control circuit, warning circuit and temperature display circuit, temperature measurement circuit includes clamp formula pipe wall thermal resistance, control circuit included time relay time, warning circuit includes audible -visual annunciator and warning reset button, the temperature display circuit includes the temperature display device, clamp formula pipe wall thermal resistance passes through the mounting to be installed on coal powder injection distributor branch pipe, and it is reasonable that stifled system design is measured to this high efficiency stokehold coal powder injection coal rifle, and degree of automation is high, has effectively reduced staff's intensity of labour.
Description
Technical field
This utility model relates to coal powder injection coal rifle and measures stifled systems technology field, surveys stifled system particularly to coal powder injection coal rifle before a kind of State of Blast Furnace.
Background technology
In blast furnace actual production, the water coal work of blast furnace is also frequently found air port and blocks up rifle, needs to carry out coal rifle in time purging the normal coal powder injection of guarantee.Analyzing and find, cause the reason of stifled rifle to have two kinds: (1) coal dust fugitive constituent is higher, gelatinous layer ties black Jiao, is bonded at air port and causes stifled rifle；(2) ash fusion point of coal dust is too low, and ash fractional melting rear section is bonded at the coal rifle of air port, in canescence slag.Air port coal rifle chute blockage as do not processed in discovery in time, excessive by causing other not block up the actual injecting coal quantity in rifle air port, is unfavorable for fully burning and the reaction of coal dust, and blast furnace can be only in reduced levels injecting coal quantity and smelts state.The uniform coal injection of blast furnace, can make cupola well heat distribution uniform, is conducive to improving the excess oxygen coefficient in air port, promotes direct motion and the raising of injecting coal quantity of blast fumance.
Coal rifle inspection and the dredging of blast furnace at ordinary times is all responsible for by water coal work, for ensureing the uniform winding-up of coal dust, blast furnace requires that shift foreman and pigment work observe coal injection of draught situation once per hour, mainly observed by air port or allotter pressure judges: when coal dust is can't see in certain air port, illustrate that at this, spray gun or arm block, when pulverized coal distributor pressure raises, illustrate that several air port or arm block.Rifle phenomenon is blocked up in coal powder injection to require post personnel to find in time, and processes in the very first time, it is ensured that the uniform winding-up of whole 20 air port coal dusts, promotes that the working of a furnace is stable.But due to work such as water coal work need to be responsible for spot check inspection the water system of body of heater, the state in air port, stokehold, the coal gas leak detection of body of heater, the most always can not find that rifle is blocked up in coal powder injection in time, cause the biggest impact to producing.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, adapts to reality need, it is provided that before a kind of State of Blast Furnace, stifled system surveyed by coal powder injection coal rifle.
This utility model is achieved through the following technical solutions:
Before a kind of State of Blast Furnace, stifled system surveyed by coal powder injection coal rifle, and including main frame, described main frame is electrically connected with control unit, and described control unit includes controller and controls switch；Also including temperature sensing circuit, time control circuit, warning circuit and temperature display circuit, described controller is electrically connected with temperature sensing circuit, time control circuit, warning circuit and temperature display circuit；Described temperature sensing circuit includes clamping hoop type tube wall thermal resistance, and described time control circuit includes that the time relay, described warning circuit include audible-visual annunciator and ann reset button, and described temperature display circuit includes temperature indicating device；Described clamping hoop type tube wall thermal resistance is arranged on coal powder injection allotter arm by fixture, and the other end of described clamping hoop type tube wall thermal resistance connects cable, and described fixture is provided with securing member, and described temperature indicating device is arranged in main frame.
Before above-described a kind of State of Blast Furnace, stifled system surveyed by coal powder injection coal rifle, it is characterized by that described controller uses PLC, described controller includes control circuit mainboard and the microprocessor being arranged on control circuit mainboard and processes chip, described microprocessor and described process chip are electrically connected with, and described microprocessor and described process chip are welded on control circuit mainboard.
Before above-described a kind of State of Blast Furnace, stifled system surveyed by coal powder injection coal rifle, it is characterized by that described audible-visual annunciator is arranged in blast furnace night shift room.
Before above-described a kind of State of Blast Furnace, stifled system surveyed by coal powder injection coal rifle, it is characterized by that described audible-visual annunciator includes flashing lamp and emergency alarm bell.
The beneficial effects of the utility model:
Before this State of Blast Furnace, stifled system surveyed by coal powder injection coal rifle, including clamping hoop type tube wall thermal resistance, the time relay, ann reset button, audible-visual annunciator and temperature indicating device, after there is blocking in coal rifle, can be rapidly on host computer and onsite alarming, water coal work can know rapidly which coal rifle there is a problem, can not only pinpoint the problems rapidly, it also is able to immediately find the trouble point gone wrong, eliminate spot check coal rifle and the complicated processes of investigation of water coal work, make production more continuous, the impact of coal rifle blocking has been reduced to minimum, effectively ensure that the just conventional of blast furnace produces.This cover system runs accurately and reliably aborning simultaneously, and invests little, solves the difficult problem in production with minimum investment.
Accompanying drawing explanation
Fig. 1 is the block diagram that stifled system surveyed by coal powder injection coal rifle before a kind of State of Blast Furnace described in this utility model embodiment；
Fig. 2 is the block diagram that stifled system controller surveyed by coal powder injection coal rifle before a kind of State of Blast Furnace described in this utility model embodiment；
Fig. 3 is the structural representation of clamping hoop type tube wall thermal resistance during stifled system surveyed by coal powder injection coal rifle before a kind of State of Blast Furnace described in this utility model embodiment；
Shown in figure: 1, coal powder injection allotter arm；2, fixture；3, securing member；4, cable；5, clamping hoop type tube wall thermal resistance；6, temperature sensing circuit；7, main frame；8, control unit；9, controller；10, switch is controlled；11, time control circuit；12, warning circuit；13, temperature display circuit；14, the time relay；15, audible-visual annunciator；16, ann reset button；17, temperature indicating device；18, control circuit mainboard；19, microprocessor；20, chip is processed.
Detailed description of the invention
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings:
Embodiment: see Fig. 1 to Fig. 3.
Before a kind of State of Blast Furnace, stifled system surveyed by coal powder injection coal rifle, and including main frame 7, described main frame 7 is electrically connected with control unit 8, and described control unit 8 includes controller 9 and controls switch 10；Also include that temperature sensing circuit 6, time control circuit 11, warning circuit 12 and temperature display circuit 13, described controller 9 are electrically connected with temperature sensing circuit 6, time control circuit 11, warning circuit 12 and temperature display circuit 13；Described temperature sensing circuit 6 includes that clamping hoop type tube wall thermal resistance 5, described time control circuit 11 include that the time relay 14, described warning circuit 12 include that audible-visual annunciator 15 and ann reset button 16, described temperature display circuit 13 include temperature indicating device 17；Described clamping hoop type tube wall thermal resistance 5 is arranged on coal powder injection allotter arm 1 by fixture 2, and the other end of described clamping hoop type tube wall thermal resistance 5 connects cable 4, and described fixture 2 is provided with securing member 3, and described temperature indicating device 13 is arranged in main frame 7.
nullDescribed controller 9 uses PLC，Described controller 9 includes control circuit mainboard 18 and the microprocessor 19 being arranged on control circuit mainboard 18 and processes chip 20，Described microprocessor 19 and described process chip 20 are electrically connected with，Described microprocessor 19 and described process chip 20 are welded on control circuit mainboard 18，Described audible-visual annunciator 15 is arranged in blast furnace night shift room，Described audible-visual annunciator 15 includes flashing lamp and emergency alarm bell，Owing to adding clamping hoop type tube wall thermal resistance 5 on coal powder injection allotter arm 1，Temperature point is introduced in the PLC of blast furnace system，Owing to temperature indicating device 17 is arranged in main frame 7，The main frame 7 of blast furnace night shift room carries out temperature show，And add audible-visual annunciator 15 in the working region of stokehold water coal work，When coal powder injection allotter arm 1 temperature is less than setting value，In 5 seconds aft engines of time delay, the temperature background color on temperature indicating device picture can flash，The audible-visual annunciator 15 that simultaneously can trigger territory, water coal work area carries out sound and light alarm，At this moment it is that low needs of which arm temperature processes that Shui Mei trade union contact operative employee understands，Operative employee's row ann reset when picture afterwards，Sound and light alarm releases，Water coal work coal rifle is dredged stifled after，The temperature of coal powder injection allotter arm can slowly rise to normal range，When temperature is more than setting value，The flicker warning of operative employee's picture can automatically terminate，Still can automatic alarm after going wrong next time.
The beneficial effect of the present embodiment:
Before this State of Blast Furnace, stifled system surveyed by coal powder injection coal rifle, including clamping hoop type tube wall thermal resistance, the time relay, ann reset button, audible-visual annunciator and temperature indicating device, after there is blocking in coal rifle, can be rapidly on host computer and onsite alarming, water coal work can know rapidly which coal rifle there is a problem, can not only pinpoint the problems rapidly, it also is able to immediately find the trouble point gone wrong, eliminate spot check coal rifle and the complicated processes of investigation of water coal work, make production more continuous, the impact of coal rifle blocking has been reduced to minimum, effectively ensure that the just conventional of blast furnace produces.This cover system runs accurately and reliably aborning simultaneously, and invests little, solves the difficult problem in production with minimum investment.
Above-described embodiment is only for illustrating technology of the present utility model design and feature; its object is to allow person skilled in the art will appreciate that content of the present utility model and to implement according to this; protection domain of the present utility model can not be limited with this; all equivalence changes made according to this utility model spirit or modification, all should contain within protection domain of the present utility model.
Claims (4)
1. before a State of Blast Furnace, stifled system surveyed by coal powder injection coal rifle, including main frame (7), described main frame (7) is electrically connected with control unit (8), it is characterised in that described control unit (8) includes controller (9) and controls switch (10)；
Also including temperature sensing circuit (6), time control circuit (11), warning circuit (12) and temperature display circuit (13), described controller (9) is electrically connected with temperature sensing circuit (6), time control circuit (11), warning circuit (12) and temperature display circuit (13)；
Described temperature sensing circuit (6) includes clamping hoop type tube wall thermal resistance (5), described time control circuit (11) includes the time relay (14), described warning circuit (12) includes audible-visual annunciator (15) and ann reset button (16), and described temperature display circuit (13) includes temperature indicating device (17)；
Described clamping hoop type tube wall thermal resistance (5) is arranged in coal powder injection allotter arm (1) by fixture (2), the other end of described clamping hoop type tube wall thermal resistance (5) connects cable (4), described fixture (2) is provided with securing member (3), and described temperature indicating device (17) is arranged in main frame (7).
Before a kind of State of Blast Furnace the most according to claim 1, stifled system surveyed by coal powder injection coal rifle, it is characterized in that described controller (9) uses PLC, described controller (9) includes control circuit mainboard (18) and the microprocessor (19) being arranged on control circuit mainboard (18) and processes chip (20), described microprocessor (19) and described process chip (20) are electrically connected with, and described microprocessor (19) and described process chip (20) are welded on control circuit mainboard (18).
Before a kind of State of Blast Furnace the most according to claim 1, stifled system surveyed by coal powder injection coal rifle, it is characterised in that described audible-visual annunciator (15) is arranged in blast furnace night shift room.
Before a kind of State of Blast Furnace the most according to claim 1, stifled system surveyed by coal powder injection coal rifle, it is characterised in that described audible-visual annunciator (15) includes flashing lamp and emergency alarm bell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620136986.XU CN205540169U (en) | 2016-02-24 | 2016-02-24 | Stifled system is surveyed to blast furnace stokehold coal powder injection coal rifle |
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|---|---|---|---|
| CN201620136986.XU CN205540169U (en) | 2016-02-24 | 2016-02-24 | Stifled system is surveyed to blast furnace stokehold coal powder injection coal rifle |
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| CN205540169U true CN205540169U (en) | 2016-08-31 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107557508A (en) * | 2017-11-08 | 2018-01-09 | 常熟市裕华计量检测咨询服务有限公司 | The survey block apparatus of blast furnace coal gun |
| CN108179242A (en) * | 2018-02-08 | 2018-06-19 | 柳州钢铁股份有限公司 | Blast furnace coal gun surveys stifled system online |
| CN115138468A (en) * | 2022-07-06 | 2022-10-04 | 西安热工研究院有限公司 | Coal mill pulverized coal pipeline blockage early warning method and device and electronic equipment |
-
2016
- 2016-02-24 CN CN201620136986.XU patent/CN205540169U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107557508A (en) * | 2017-11-08 | 2018-01-09 | 常熟市裕华计量检测咨询服务有限公司 | The survey block apparatus of blast furnace coal gun |
| CN108179242A (en) * | 2018-02-08 | 2018-06-19 | 柳州钢铁股份有限公司 | Blast furnace coal gun surveys stifled system online |
| CN115138468A (en) * | 2022-07-06 | 2022-10-04 | 西安热工研究院有限公司 | Coal mill pulverized coal pipeline blockage early warning method and device and electronic equipment |
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