CN203508121U - Water spraying device in cement grinding mill - Google Patents
Water spraying device in cement grinding mill Download PDFInfo
- Publication number
- CN203508121U CN203508121U CN201320569089.4U CN201320569089U CN203508121U CN 203508121 U CN203508121 U CN 203508121U CN 201320569089 U CN201320569089 U CN 201320569089U CN 203508121 U CN203508121 U CN 203508121U
- Authority
- CN
- China
- Prior art keywords
- water
- mill
- valve
- cement
- inlet pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Crushing And Grinding (AREA)
Abstract
The utility model discloses a water spraying device in a cement grinding mill and relates to the technical field of manufacture of cement equipment. The water spraying device comprises an adjusting water valve, an air compressor and a PLC (Programmable Logic Controller) control system, wherein a tap-water inlet pipe is connected with an electromagnetic valve controlled by the PLC control system; the electromagnetic valve is connected with one end of the adjusting water valve; the other end of the adjusting water valve is connected with the air compressor and a water inlet pipe entering the mill; an inspection valve is connected in a connecting pipeline between the electromagnetic valve and the adjusting water valve; a pressure gauge is arranged on a pipeline for connecting the adjusting water valve and the water inlet pipe entering the mill. The water spraying device disclosed by the utility model has the advantages that the problems that as the temperature in the cement grinding mill is over-high, the cement quality is influenced and the reduction of the grinding efficiency is caused and the problems that as the equipment maintenance rate is high, the operation rate of the mill is low and the power consumption of the mill is high are solved.
Description
Technical field
The utility model relates to cement equipment manufacturing technology field, especially a kind of for regulating the water injector of temperature in cement grinding mill mill.
Background technology
Cement go out to grind the important parameter that temperature is cement grinding quality control, at ball mill, carry out in the process of cement grinding, have most mechanical kinetic energy and be converted into heat energy, and the height that enters to grind clinker temperature all can affect ball milling built-in temperature, heat energy gathers too much and enters to grind clinker temperature height and can make ball milling built-in temperature raise, in mill, excess Temperature can cause gypsum dehydration, when serious, cause cement false set, affect cement quality, and in mill, temperature is high is easy to cause that in mill, cement is reunited because of Electrostatic Absorption, cause bag ball, bag section phenomenon, thereby reduction mill efficiency.An existing class cement producing line, two two storehouses Super-fine grinder machines of cement grinding system outfit, grinder system belongs to out stream mill, without roll squeezer, design unit-hour output 85t/h, going out to grind temperature control is 110～125 ℃, the type of cooling adopts (mill tail) water spray in mill; The water injector adopting is by cistern, two water pumps, water adjusting valve, air compressor machine and PLC composition of the control systems, and in mill, the flow process of water injector as shown in Figure 1.
In production practices, the running of water pump centrifugation blade long-term load, cause fan blade to wear and tear gradually with the long-term friction of running water, fan blade water pump in the process of wearing and tearing provides output less than normal or unstable, cause into mill injection flow rate and spraying hydraulic pressure and reduce, in mill, water spray area and water spray length shorten, and spraying hydraulic pressure is wanted and water spray air compressor machine blast must mate, general hydraulic pressure is greater than blast, due to centrifugation blade wearing and tearing, in unit interval, injection flow rate and hydraulic pressure are less than normal, do not adjusting in air compressor machine blast situation, when less than normal the or blast of hydraulic pressure and blast pressure differential is greater than hydraulic pressure, can cause reducing into mill inflow, fogging degree is high, water spray length can shorten more, atomized water does not also carry out heat exchange with hot-air and just by mill tail exhaust blower, is extracted out outside mill, could not realize and lowering the temperature to grinding interior cement, cause cement temperature to raise, affect cement quality.Enable to follow the tracks of in time the fan blade degree of wear and frequently adjust air compressor machine blast, also can be difficult to permanently effective the stable of water injection system that maintain, because water pump fan blade weares and teares gradually, water pump output is on the low side, in mill, water spray range shortens, and in atomized steam and mill, cement contact area is little, carries out heat exchange also few, thereby be difficult to control the high phenomenon of temperature in mill, in mill, temperature height easily causes II storehouse bag ball, bag section phenomenon, reduces mill grinding efficiency, affects the raising of mill hourly output.And long-time temperature height can cause gypsum dehydration in mill, causes cement " false set " phenomenon, has a strong impact on cement quality, thereby go out to grind cement temperature and continue 1 hour higher than 140 ℃, just must stop to grind, affect mill running rate and unit-hour output.
Pump motor long time running, its bearing and other parts wears are also larger, for example centrifugation blade is generally used as carrying out maintain and replace half a year, motor bearings repair and replacement in a year once, 5000 yuan approximately of every annual maintenance costs of water pump, every annual consumes power of water pump is 19000 degree left and right, and when water-change pump parts more, has to stop mill and change, thereby affects mill running rate and power consumption of the mill.
Summary of the invention
Technical problem to be solved in the utility model is to provide water injector in a kind of cement grinding mill mill, and it can solve because of excess Temperature in cement grinding mill mill, affects cement quality, causes mill efficiency to reduce; And the high low and high problem of power consumption of the mill of mill running rate that causes of maintenance of equipment rate.
In order to address the above problem, the technical solution of the utility model is: in this cement grinding mill mill, water injector includes water adjusting valve, air compressor machine and PLC control system, at running water water inlet pipe, be connected with the magnetic valve of being controlled by described PLC control system, described magnetic valve is connected with described water adjusting valve one end; The described water adjusting valve other end and described air compressor machine with enter to grind water inlet pipe and be connected.
In technique scheme, more specifically scheme can also be: in the connecting pipe of described magnetic valve and described water adjusting valve, be connected with check valve.
Further: described water adjusting valve with described in enter to grind on the pipeline that water inlet pipe is connected and be provided with Pressure gauge.
Owing to adopting technique scheme, the utlity model has following beneficial effect:
(1) the utility model has been cancelled original water pump, enters mill water spray and directly connects running water, and injection flow rate and hydraulic pressure are more stable, and excess Temperature in the mill of having avoided causing because of water pump fault affects cement quality and causes mill efficiency to reduce; And the high low and high problem of power consumption of the mill of mill running rate that causes of maintenance of equipment rate; Stable due to injection flow rate, spray water and into mill water adjusting valve aperture, generally reach 40-50% and just can stablize and control out mill temperature.
(2) the utility model is because injection flow rate is stable, air compressor machine for water spraying atomization also need not be because of the water pump centrifugation blade wearing and tearing water pump pressure of supply water air compressor machine pressure that frequently regulates less than normal, and atomizing effect in keeping grinding, present air compressor machine fixedly discharge pressure of fan is 0.25Mpa, just can keep grinding interior water spraying atomization effect.
(3) the utility model goes out to grind temperature and is well controlled, eliminated because grinding high II storehouse bag ball, the bag section phenomenon of causing of interior temperature, effectively guarantee mill grinding efficiency, when having improved product quality, improved mill hourly output, also reduce that temperature is high stops grinding phenomenon, raising mill running rate because going out to grind simultaneously.
(4) the utility model is because having reduced former water injection system water pump, save the annual input to the maintenance expense of water pump, also saved the power consumption of water pump simultaneously, at least 5000 yuan of every annual maintenance costs of water pump, every annual consumes power of water pump is 19000 degree left and right, thereby has reduced production cost.
(5) the utility model is well controlled temperature in mill, has eliminated because grinding the high gypsum dehydration that causes of interior temperature, and has caused that " false set " phenomenon appears in cement, thereby guaranteed the stability of cement quality.
Accompanying drawing explanation
Fig. 1 is prior art schematic diagram.
Fig. 2 is the utility model schematic diagram.
Number in the figure is denoted as: running water water inlet pipe 1; Buoy 2; Cistern 3; PLC control system 4; Water pump 5,6; Water adjusting valve 7; Pressure gauge 8; Air compressor machine 9; Enter to grind water inlet pipe 10; Magnetic valve 11; Check valve 12.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated:
Fig. 1 is water injection system schematic flow sheet in prior art mill; This system is by cistern 3, two water pumps 5,6; Water adjusting valve 7, air compressor machine 9 and PLC control system 4 form, cistern 3 one end connect running water water inlet pipe 1, running water water inlet pipe 1 is controlled the break-make of running water by a buoy 2, water in pond by water pump, taken away after buoy 2 sink, running water pipe valve open, running water injects cistern 3, and in pond, full buoy to a certain extent 2 rises, and closes running water passage; Pressure gauge 8 is installed, for observing the pressure of water spray passage after water adjusting valve 7.This System Working Principle is: air compressor machine 9 pre-coolings before cement grinding mill starts, in mill, carry compressed air, and its object is dredged nozzle exactly, and avoiding starting in grinding machine process has steel ball, forging to block shower nozzle, thus impact water spray effect.When scene goes out to grind temperature >=125 ℃, by electric signal, feed back to PLC control system 4,4 outputs of PLC control system start water pump signal, and water pump 5,6 starts to water pipe internal pump water; Central Control Room operator according to the aperture that goes out to grind the height control and regulation water valve 7 of cement temperature, enters by entering to grind water inlet pipe 10 wind that water in mill and air compressor machine 9 provide by operation interface, keeps the stability of temperature in mill.When going out to grind temperature lower than 110 ℃, after water adjusting valve 7 is closed, PLC control system 4 output water pump stop signals, water pump 5,6 stops pump water.
The utility model of Fig. 2, includes water adjusting valve 7, air compressor machine 9 and PLC control system 4, is connected with the magnetic valve 11 of being controlled by PLC control system 4 at running water water inlet pipe 1, and magnetic valve 11 is connected with water adjusting valve 7 one end; Water adjusting valve 7 other ends and air compressor machine 9 with enter to grind water inlet pipe 10 and be connected; In the connecting pipe of magnetic valve 11 and water adjusting valve 7, be connected with check valve 12; Water adjusting valve 7 with enter to grind the pipeline that water inlet pipe 10 is connected on be provided with Pressure gauge 8.
The utility model is cancelled the cistern of former water injection system, water inlet end is directly connected with running water pipe by magnetic valve 11, the object of doing is like this because tap water hydraulic is more stable, conventionally remain on 0.35Mpa, with water pump, provide hydraulic pressure more stable, thereby guarantee that water injection system has enough water pressures to spray water in mill.Cancel two water supply pumps of former water injection system simultaneously, change into magnetic valve 11 and control the start-stop supplying water.Its operation principle is the same with original water injection system, when going out to grind temperature while reaching 125 ℃, according to PLC program setting, PLC control system 4 is given 11 1 opening signals of magnetic valve, magnetic valve 11 is started working, operator regulates the size into mill control water valve 7 to regulate inflow by Central Control Room operation interface according to the height that goes out to grind temperature, thereby keeps the interior temperature of mill in controlled range; Whether the check valve 12 arranging in the connecting pipe of magnetic valve 11 and water adjusting valve 7 there is fault when checking electromagnetic valve work.When going out to grind temperature lower than 110 ℃, PLC control system 4, according to the setting of PLC control program, is exported to 11 1 shutdown signals of magnetic valve, and magnetic valve quits work, and stops supplying water in pipe.
The utility model has been cancelled original cistern and water pump, enters mill water spray and directly connects running water, and injection flow rate and hydraulic pressure are more stable, and excess Temperature in the mill of having avoided causing because of water pump fault affects cement quality and causes mill efficiency to reduce; And the high low and high problem of power consumption of the mill of mill running rate that causes of maintenance of equipment rate; Stable due to injection flow rate, spray water and into mill water adjusting valve aperture, generally reach 40-50% and just can stablize and control out mill temperature; Because injection flow rate is stable, air compressor machine also need not be because of the water pump centrifugation blade wearing and tearing water pump pressure of supply water air compressor machine pressure that frequently regulates less than normal, and keep atomizing effect in mill, spray water now air compressor machine fixedly discharge pressure of fan be 0.25Mpa, just can keep grinding interior water spraying atomization effect.Save every year the input to the maintenance expense of water pump simultaneously, and the power consumption that has saved water pump, at least 5000 yuan of every annual maintenance costs of water pump, every annual consumes power of water pump is 19000 degree left and right, when guaranteeing product quality, reduced production cost, remarkable in economical benefits.
Claims (3)
1. a cement grinding mill grinds interior water injector, include water adjusting valve (7), air compressor machine (9) and PLC control system (4), it is characterized in that: at running water water inlet pipe (1), be connected with the magnetic valve (11) of being controlled by described PLC control system (4), described magnetic valve (11) is connected with described water adjusting valve (7) one end; Described water adjusting valve (7) other end and described air compressor machine (9) with enter to grind water inlet pipe (10) and be connected.
2. according to water injector in the cement grinding mill mill of claim 1, it is characterized in that: in the connecting pipe of described magnetic valve (11) and described water adjusting valve (7), be connected with check valve (12).
3. according to water injector in the cement grinding mill mill of claim 1 or 2, it is characterized in that: described water adjusting valve (7) with described in enter to grind on the pipeline that water inlet pipe (10) is connected and be provided with Pressure gauge (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320569089.4U CN203508121U (en) | 2013-09-14 | 2013-09-14 | Water spraying device in cement grinding mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320569089.4U CN203508121U (en) | 2013-09-14 | 2013-09-14 | Water spraying device in cement grinding mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203508121U true CN203508121U (en) | 2014-04-02 |
Family
ID=50367105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320569089.4U Expired - Fee Related CN203508121U (en) | 2013-09-14 | 2013-09-14 | Water spraying device in cement grinding mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203508121U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104001592A (en) * | 2013-11-13 | 2014-08-27 | 广西鱼峰水泥股份有限公司 | Water spraying device for cement grinding mill |
| CN105880004A (en) * | 2016-05-13 | 2016-08-24 | 天能电池(芜湖)有限公司 | Water spraying cooling device of ball mill |
-
2013
- 2013-09-14 CN CN201320569089.4U patent/CN203508121U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104001592A (en) * | 2013-11-13 | 2014-08-27 | 广西鱼峰水泥股份有限公司 | Water spraying device for cement grinding mill |
| CN105880004A (en) * | 2016-05-13 | 2016-08-24 | 天能电池(芜湖)有限公司 | Water spraying cooling device of ball mill |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103605390B (en) | A kind of water-supply control of hot-rolling line ultra-rapid cooling system | |
| CN203030144U (en) | Full-automatic dry fog dedusting system | |
| CN203508121U (en) | Water spraying device in cement grinding mill | |
| CN105115082A (en) | Air conditioning system for textile workshop | |
| CN204620640U (en) | A kind of roll aqueous vapor cooling device | |
| CN101716540B (en) | Method for reducing temperature in tube mill by spraying | |
| CN108468575B (en) | System for changing extraction condensing unit into back pressure unit based on injection heat pump and operation method thereof | |
| CN201890074U (en) | Cutter oil mist cooling device for CNC (computerized numerical control) aluminum veneer engraving machine | |
| CN104001592A (en) | Water spraying device for cement grinding mill | |
| CN204024731U (en) | The built-in finer atomization cooling unit of a kind of Air-Cooling Island blow-off line | |
| CN103266515A (en) | Water cooling system for mechanical sealing of main shaft of defibrator | |
| CN103277197B (en) | Gas turbine generating set low-calorific-value combustion control method | |
| CN202860996U (en) | Rolling oil control system | |
| CN211080394U (en) | Control device for high-pressure turbid circulating water system for production of broadband stainless steel | |
| CN203348040U (en) | Power station steam-driven air compressor system | |
| CN104633798A (en) | Textile mill air conditioner energy saving method | |
| CN203578406U (en) | Small bar material through-water cooling stable device | |
| CN203196743U (en) | Automatic control spraying cooling equipment of cement mill | |
| CN205834146U (en) | The chiller of the secondary cooling section of continuous caster improved | |
| CN203108949U (en) | Water supply system for parallel running of ultrafast cooling system and laminar cooling system | |
| CN202964422U (en) | Steel tube rod sand blasting, linking and air supply energy-saving control device | |
| CN203324741U (en) | Frequency-conversion speed-regulation control system | |
| CN206801839U (en) | A kind of combustion engine compressor blade cleaning device for adjusting flushing water pump outlet pressure | |
| CN205261850U (en) | Central air conditioning water pump sprays adjusting device | |
| CN201697254U (en) | Jet loom workshop air compressor and air conditioning energy saving system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20180914 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |