CN202876934U - Interlocking system for safe operation of coal mill equipment - Google Patents
Interlocking system for safe operation of coal mill equipment Download PDFInfo
- Publication number
- CN202876934U CN202876934U CN 201220623983 CN201220623983U CN202876934U CN 202876934 U CN202876934 U CN 202876934U CN 201220623983 CN201220623983 CN 201220623983 CN 201220623983 U CN201220623983 U CN 201220623983U CN 202876934 U CN202876934 U CN 202876934U
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- coal pulverizer
- valve
- pump
- pneumatic clutch
- air bag
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Abstract
The utility model discloses an interlocking system for the safe operation of coal mill equipment. The interlocking system comprises an air storage tank, a water-filtering decompressor, a one-way throttle valve, an inflation electromagnetic valve, a rotating seal valve, a pneumatic clutch, a synchronous motor, a speed reducer, a coal mill, a coal feeder, a water pump and an additive pump, wherein the air storage tank, the water-filtering decompressor, the one-way throttle valve, the inflation electromagnetic valve, the rotating seal valve and an air bag of the pneumatic clutch are connected in sequence; the air storage tank is provided with an air storage tank pressure relay; the air path of the air bag is provided with an air bag pressure relay; the synchronous motor is provided with an ammeter; the coal feeder, the water pump and the additive pump are respectively communicated with a feed inlet of the coal mill; the interlocking system further comprises an interlocking controller; and the air storage tank pressure relay, the air bag pressure relay, the ammeter, the coal feeder, the water pump and the additive pump are respectively connected with the interlocking controller. The interlocking system has the advantages that the safety of the pneumatic clutch of the coal mill is protected, the interlocking system is automatically controlled, heavy manual inspection is avoided, and the safety is high.
Description
Technical field:
The utility model relates to a kind of interlock system, relates in particular to a kind of interlock system of coal pulverizer equipment safety operation.
Background technology:
Wet type overflow type rod mill is very common in the chemical plant of carrying out gasification reaction take water-coal-slurry as raw material.Water, coal, additive solution enter rod mill by the drum type dispenser, through overground Jie's bump and grinding, make water-coal-slurry for rear operation in grinding machine.Coal is sent into grinding machine by the weighing of coal scale feeder.Pulping water is controlled the water yield by the pressurization of slurrying water pump through the grinding machine water-supply valve and is delivered to grinding machine.Additive solution is together sent into grinding machine by measuring pump and water and coal.
Coal pulverizer pneumatic clutch gas circuit pressure when the air compressor machine fault of leakage or clutch appears in the clutch gas circuit of coal pulverizer, all may cause grinding machine clutch gasbag pressure not enough without the interlocking monitoring means, and the clutch brake shoe is relative with drum to rub, and burns brake shoe.When insufficient pressure, must patrol and examine and could find by the operating personnel scene, if patrol and examine untimely or patrol and examine not in placely, when often waiting the discovery situation, situation is more serious.The replacing of clutch is consuming time longer, if can cause especially grinding machine to stop production for a long time without spare part, affects system throughput or causes parking completely.And the gas circuit assembly of pneumatic clutch and air compressor machine break down than being easier to, so the clutch brake shoe often occurs because of the equipment damage that lacks interlock protection and cause.
The utility model content:
Even it is a kind of in the situation of no worker monitor that the purpose of this utility model is to provide, still guarantee grinding machine operation essential safety, stop clutch brake shoe and drum to skid, damage clutch, avoid catching fire or the interlock system of a kind of coal pulverizer equipment safety operation of other security incident.
The utility model is implemented by following technical scheme: a kind of interlock system of coal pulverizer equipment safety operation, it comprises air accumulator, divide water filter pressure reducer, one-way throttle valve, the inflation magnetic valve, the rotatory sealing valve, pneumatic clutch, synchronous motor, reductor, coal pulverizer, feeder, water pump, additive pump, described air accumulator, described minute water filter pressure reducer, described one-way throttle valve, described inflation magnetic valve, described rotatory sealing valve, the air bag of described pneumatic clutch connects successively, described air accumulator is provided with the air accumulator pressure switch, gas circuit at described air bag is provided with the gasbag pressure relay, described synchronous motor is connected with described reductor, described reductor is connected by described pneumatic clutch with described coal pulverizer, be provided with ammeter at described synchronous motor, described feeder, described water pump, described additive pump is communicated with the charging aperture of described coal pulverizer respectively, it also comprises chain controller, described air accumulator pressure switch, described gasbag pressure relay, described ammeter, described feeder, described water pump, described additive pump is connected with described chain controller respectively.
Described chain controller is any one of PLC controller or DCS distribution type control system.
Advantage of the present utility model: the essential safety of protection coal pulverizer pneumatic clutch, Automatic Control avoided heavy manual inspection, and security is higher; After interlocking triggered, behind the throw-out-of clutch, all action automatic interlocks of stopping are finished, and have avoided follow-up technology accident and manual operation, and were more convenient reliable.
Description of drawings:
Fig. 1 is integrated connection schematic diagram of the present utility model.
Air accumulator 1, minute water filtration decompression device 2, one-way throttle valve 3, inflation magnetic valve 4, rotatory sealing valve 5, pneumatic clutch 6, synchronous motor 7, reductor 8, coal pulverizer 9, feeder 10, water pump 11, additive pump 12, interlocking controller 13, air accumulator pressure switch 14, gasbag pressure relay 15, ammeter 16, control valve 17, air bag 18.
The specific embodiment: as shown in Figure 1, a kind of interlock system of coal pulverizer equipment safety operation, it comprises air accumulator 1, divide water filtration decompression device 2, one-way throttle valve 3, inflation magnetic valve 4, rotatory sealing valve 5, pneumatic clutch 6, synchronous motor 7, reductor 8, coal pulverizer 9, feeder 10, water pump 11, additive pump 12 and interlocking controller 13, air accumulator 1, divide water filtration decompression device 2, one-way throttle valve 3, inflation magnetic valve 4, rotatory sealing valve 5, the air bag 18 of pneumatic clutch 6 connects successively, air accumulator 1 is provided with air accumulator pressure switch 14, gas circuit at air bag 18 is provided with gasbag pressure relay 15, synchronous motor 7 is connected connection with reductor, reductor 8 is connected by pneumatic clutch 6 with coal pulverizer 9, be provided with ammeter 16 at synchronous motor 7, feeder 10, water pump 11, additive pump 12 is communicated with the charging aperture of coal pulverizer 9 respectively, air accumulator pressure switch 14, gasbag pressure relay 15, ammeter 16, feeder 10, water pump 11, additive pump 12 is connected with interlocking controller 13 respectively; Interlocking controller 13 is any one of PLC controller or DCS distribution type control system.
The course of work: during coal pulverizer 9 work, air accumulator 1 is by dividing a water filtration decompression device 2, one-way throttle valve 3, inflation magnetic valve 4, rotatory sealing valve 5 to air bag 18 air feed.Wherein inflate the gas-filled switching tube that magnetic valve 4 is air bags 18, interlocking controller 13 is to inflation magnetic valve 4 transmitted signals when normally moving, and inflation magnetic valve 4 is opened, and gas enters air bag 18, and pneumatic clutch 6 closes a floodgate, coal pulverizer 9 normal operations.
When coal pulverizer 9 quit work, interlocking controller 13 was to inflation magnetic valve 4 transmitted signals, and inflation magnetic valve 4 switches to exhaust mode, gas in the air bag 18 is discharged by the fast-discharge valve on inflation magnetic valve 4 and the air bag 18, air bag 18 earth pressure releases, pneumatic clutch 6 is thrown off, and coal pulverizer 9 quits work.
When any one is lower than pressure interlocking value in air accumulator pressure switch 14,15 two pressure switches of gasbag pressure relay, send triggering signal to interlocking controller 13, interlocking controller 13 receives that signal is through the logic judgement, send a signal to inflation magnetic valve 4,4 outages of inflation magnetic valve, the gas in the air bag 18 discharges fast from inflation magnetic valve 4 and air bag fast-discharge valve, and pneumatic clutch 6 is thrown off, synchronous motor 7 is rotated further, coal pulverizer 9 body stalls; After pneumatic clutch 6 is thrown off; synchronous motor 7 unloaded rotations; running current 16 can descend rapidly; when interlocking controller 13 judges that electric current 16 is lower than the interlocking setting value; interlocking controller 13 sends stopping signal; feeder 10, water pump 11, additive pump 12 stop, control valve 17 autoshutdowns of water pump 11.
Claims (2)
1. the interlock system of a coal pulverizer equipment safety operation, it comprises air accumulator, divide water filter pressure reducer, one-way throttle valve, the inflation magnetic valve, the rotatory sealing valve, pneumatic clutch, synchronous motor, reductor, coal pulverizer, feeder, water pump, additive pump, described air accumulator, described minute water filter pressure reducer, described one-way throttle valve, described inflation magnetic valve, described rotatory sealing valve, the air bag of described pneumatic clutch connects successively, described air accumulator is provided with the air accumulator pressure switch, gas circuit at described air bag is provided with the gasbag pressure relay, described synchronous motor is connected with described reductor, described reductor is connected by described pneumatic clutch with described coal pulverizer, be provided with ammeter at described synchronous motor, described feeder, described water pump, described additive pump is communicated with the charging aperture of described coal pulverizer respectively, it is characterized in that, it also comprises chain controller, described air accumulator pressure switch, described gasbag pressure relay, described ammeter, described feeder, described water pump, described additive pump is connected with described chain controller respectively.
2. the interlock system of a kind of coal pulverizer equipment safety operation according to claim 1 is characterized in that, described chain controller is any one of PLC controller or DCS distribution type control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220623983 CN202876934U (en) | 2012-11-12 | 2012-11-12 | Interlocking system for safe operation of coal mill equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220623983 CN202876934U (en) | 2012-11-12 | 2012-11-12 | Interlocking system for safe operation of coal mill equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202876934U true CN202876934U (en) | 2013-04-17 |
Family
ID=48068400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220623983 Expired - Lifetime CN202876934U (en) | 2012-11-12 | 2012-11-12 | Interlocking system for safe operation of coal mill equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202876934U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104624303A (en) * | 2014-12-26 | 2015-05-20 | 四川石棉巨丰粉体有限公司 | Novel hoop roller mill |
| CN105921227A (en) * | 2016-05-05 | 2016-09-07 | 中信重工机械股份有限公司 | Mechanical interlocking safety system of mill |
| CN109027036A (en) * | 2018-09-13 | 2018-12-18 | 淮安信息职业技术学院 | A kind of slow purging moves arrangement of clutch and its application method |
| CN115069397A (en) * | 2022-05-12 | 2022-09-20 | 安阳中联水泥有限公司 | Air inlet equipment for air suspension pulverized coal based on coal mill system |
-
2012
- 2012-11-12 CN CN 201220623983 patent/CN202876934U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104624303A (en) * | 2014-12-26 | 2015-05-20 | 四川石棉巨丰粉体有限公司 | Novel hoop roller mill |
| CN105921227A (en) * | 2016-05-05 | 2016-09-07 | 中信重工机械股份有限公司 | Mechanical interlocking safety system of mill |
| CN105921227B (en) * | 2016-05-05 | 2018-05-22 | 中信重工机械股份有限公司 | A kind of mill mechanical interlock safety system |
| CN109027036A (en) * | 2018-09-13 | 2018-12-18 | 淮安信息职业技术学院 | A kind of slow purging moves arrangement of clutch and its application method |
| CN115069397A (en) * | 2022-05-12 | 2022-09-20 | 安阳中联水泥有限公司 | Air inlet equipment for air suspension pulverized coal based on coal mill system |
| CN115069397B (en) * | 2022-05-12 | 2023-12-01 | 安阳中联水泥有限公司 | Air suspension air inlet equipment for coal dust based on coal grinding system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |