CN203196743U - Automatic control spraying cooling equipment of cement mill - Google Patents
Automatic control spraying cooling equipment of cement mill Download PDFInfo
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- CN203196743U CN203196743U CN 201320114888 CN201320114888U CN203196743U CN 203196743 U CN203196743 U CN 203196743U CN 201320114888 CN201320114888 CN 201320114888 CN 201320114888 U CN201320114888 U CN 201320114888U CN 203196743 U CN203196743 U CN 203196743U
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Abstract
The utility model provides automatic control spraying cooling equipment of a cement mill. The automatic control spraying cooling equipment comprises spraying cooling equipment consisting of a water storing device, a mill head water supplying device, a water tail water supplying device, a circulating cooling water supplying device and a compressed air supplying device, and an electric control cabinet, and is characterized in that the two ends of the cement mill are respectively provided with a mill head spraying gun and a mill tail spraying gun; a material feeding temperature sensor and a material discharging temperature sensor are arranged on a mill head inlet and a mill tail; a water outlet is additionally provided with a water steam sealing conversion device; a wiring board of the electric control cabinet is respectively connected with a three-phase power supply and a control program module PLC (Programmable Logic Controller); each end of the wiring board is respectively connected with a touch screen and each electric piece in the spraying cooling equipment; and three water pumps are communicated with the control program module PLC through respective frequency converters. The automatic control spraying cooling equipment has the characteristics that a control program respectively controls the size of spraying amounts of the mill head water supplying device and the water tail water supplying device; the control over the water amounts is continuous and linear; the pressure of an outlet of the spraying gun is 0.4-0.6MPa and the flow is 0-2T/H; and water fog is rapidly evaporated in high-temperature smoke and a lot of heat of the smoke is absorbed, so that a mill tail temperature is controlled within 105 DEG C.
Description
Technical field
The utility model relates to the temperature adjustment technology of using in the manufacture of cement, and a kind of cement mill is controlled mist cooling equipment automatically.
Background technology
Cement mill is the main production equipments of cement production enterprise, grinding machine often goes out to reveal the phenomenon that material appearance bag bag is forged in grind materials excess Temperature, the mill when grinding material, the former easily affects the performance of grind materials, as stick with paste ball and stick with paste the harm such as mill, gypsum dehydration, cement false set, thereby the latter is prone to the rising of crawler shoe temperature causes mill output to reduce, and power consumption increases.Best solution is exactly spray cooling in the cement grinding mill; the spray cooling equipment that exists in the market generally uses water under high pressure that bistrique is sprayed water; atomizing effect is bad; shower nozzle easily stops up; aqueous vapor seal rapid wear; full-automatic degree is not high, and operation lacks safeguard protection to spray cooling equipment, causes production accident to take place frequently.
Summary of the invention
The purpose of this utility model is to provide a kind of and overcomes above-mentioned deficiency, cement mill is gone out to grind temperature is controlled at 105 ℃ and automatically controls mist cooling equipment with interior cement mill.
The technical solution of the utility model is: cement mill is controlled mist cooling equipment automatically, comprise that water storage, bistrique supply water, the mill tail supplies water, circulating cooling supplies water and spray cooling device, touch-screen and the electrical control cabinet of compressed air supply arrangement, it is characterized in that at the cement mill two ends bistrique spray gun being installed respectively and being ground the tail spray gun, set into material temperature degree sensor in the bistrique import, the drop temperature sensor is set and goes out to grind the wind-warm syndrome sensor at the mill tail, install the water vapor seal conversion equipment additional at delivery port; Configuration is automatically controlled the electrical control cabinet of cooling and electricity piece is set in spray cooling device, the terminal plate of electrical control cabinet connects respectively each electricity piece in three phase mains, each end that links to each other with control program module PLC, touch-screen and the spray cooling device, the water pump of circulating cooling water pump, bistrique and mill tail all is communicated with control program module PLC through separately frequency converter, realizes accurately control.
The design's cement mill is controlled mist cooling equipment automatically, basic function is the injection flow rate according to the variation automatic adjusting jet-gun of flue-gas temperature, guarantee that the cement grinding mill outlet temperature maintains in the suitable temperature range (105 ℃～100 ℃), and do not affect cement quality.During work, automatic control system is by monitoring and the calculating of bistrique temperature and mill tail temperature, control respectively the injection flow rate size of bistrique supply equipment and mill tail supply equipment, the water source is boosted by variable frequency pump after water tank filters through filter and is adjusted to certain pressure (0.4～0.6MPa) and flow (0～2T/H), deliver to spray gun through export pipeline, under compressed-air actuated effect, atomize, produce very tiny atomizing particle, water smoke is rapidly evaporation in high-temperature flue gas, absorb the amount of heat of flue gas, mill tail temperature is controlled in 105 ℃.It is fine and closely woven that shower nozzle has the aperture, and water yield control is linear continuously, and the adjusting stable and continuous is quick, thereby accurately control makes the characteristics such as aqueous vapor seal durability prolongation.When mill tail outlet temperature measurement component detected flue-gas temperature above the desired temperature scope, the variable frequency pump self-regulating rotary speed in the mill tail supply equipment increased pressure of supply water and flow, makes the increase of mill tail injection flow rate, thereby flue-gas temperature is reduced in the specified scope; When outlet temperature reduced above temperature setting evaluation scope, the variable frequency pump self-regulating rotary speed in the mill tail supply equipment reduced pressure of supply water and flow, and injection flow rate is reduced, thereby flue-gas temperature is gone back up in the specified scope (105 ℃～100 ℃).
Following table is the Contrast on effect of the design's quenching and tempering device for cooling high-temperature fume and prior art
Description of drawings
Fig. 1 is the structural representation of this equipment;
Fig. 2 .1 is the spray gun structure schematic diagram in this equipment;
Fig. 2 .2 is the shower nozzle port schematic diagram in this equipment;
Fig. 3 is the electrical control gear circuit theory diagrams in this equipment;
Fig. 4 be in this equipment water gas circuit electricity piece configuration schematic diagram.
The specific embodiment
Cement mill of the present utility model is controlled mist cooling equipment automatically, and example 1 is the production for the cement plant, guarantees that the cement grinding mill outlet temperature maintains in the suitable temperature range (105 ℃～100 ℃).
Referring to Fig. 1: the design controls mist cooling equipment automatically, include the water memory device, the bistrique supply equipment, mill tail supply equipment, the spray cooling device 8 of circulating cooling supply equipment and compressed air supply arrangement, electrical control cabinet 9, it is characterized in that at cement mill 1 two ends bistrique spray gun 2 being installed respectively and being ground tail spray gun 6, set into material temperature degree sensor 5 in the bistrique import, drop temperature sensor 11 is set and goes out to grind wind-warm syndrome sensor 7 at the mill tail, install water vapor seal conversion equipment 10 additional at delivery port, the electrical control cabinet 9 of supporting automatic control cooling and in spray cooling device 8, sensor is set, motor-driven valve, the electricity pieces such as switch, the terminal plate of electrical control cabinet 9 connects respectively three phase mains, with control program module PLC, each end that touch-screen links to each other and each electricity piece in the mist cooling equipment, the circulating cooling water pump, the water pump of bistrique and mill tail all is communicated with control program module PLC through separately frequency converter, reaches accurate control requirement.
Bistrique spray gun 2 and mill tail spray gun 6 shown in Fig. 2 .1, gun barrel 20 has waterway inlet 12, gas circuit entrance 13, increase sleeve 16 outside the gun body between spray gun mounting flange 14 and shower nozzle 18 knuckle places, be wrapped in along being gas circuit in the uniform water route bellows 17 of perisporium, the center of circle, and at sleeve 16 an ends installation shelves gas plate 15 adjacent with mounting flange 14 intervals, thereby increase the effect of spray gun sealing, prolong the life-span of sealing gasket; Adopt mixing wastewater with air type shower nozzle 18, see that 8 aerosol fluids that have in Fig. 2 .2 shower nozzle 18 around circumference portal 19, be difficult for stopping up, atomizing effect is very good, has guaranteed that water smoke in the inner evaporation of cement mill fully.
Electric part: with circuit as shown in Figure 3 in the electrical control cabinet 9 that the bistrique water pump is connected: be connected by cable 39 between the control program module PLC that Programmable Logic Controller 71 arranged and the touch-screen 67, system's start end 21 successively on the terminal plate that it is characterized in that being connected with control program module PLC, the signal end 22 of ultrasonic water tank liquid level gauge 44, pan feeding temperature signal end 23, go out to grind temperature signal end 24, mill tail water road pressure end 25, bistrique discharge end 26, bistrique water route pressure end 27, gas circuit pressure end 28, mill tail water flow end 29, grinding machine run signal end 30, system's run signal end 31, temperature setting fixed end 32, the bistrique water pump opens/stops holds 33, mill tail water pump opens/stops holds 34, gas circuit motor-driven valve switch terminals 35, the 380V alternating current three-phase electricity source 36 that wherein is connected with the bistrique water pump, the three-phase electricity source 37 that is connected with mill tail water pump, the three-phase electricity end 38 that is connected with the circulating cooling water pump also connects respectively first, second, the 3rd frequency converter 68～70 is regulated respectively described three water pumps.
Described spray cooling device 8 comprises water memory device, bistrique supply equipment, mill tail supply equipment, circulating cooling supply equipment and compressed air feedway, it is characterized in that the water route that spray cooling device 8 the insides are all, gas circuit all arrange electricity piece, all control by frequency converter, realize the accurate control requirement of automatic control program design.As shown in Figure 4: the electrical configurations of water memory device wherein: water inflow filter 40, water inlet motor-driven valve 41 are set between water tank 43 and water source, at water tank 43 draining motor-driven valve 42, ultrasonic water tank liquid level gauge 44 are set.
See Fig. 4, the electrical configurations of described bistrique supply equipment: water intaking valve 45 is set in water tank 43 bottoms, link to each other with water inlet, bistrique water intaking valve 45 delivery ports link to each other with bistrique vertical centrifugal pump 46 water inlet flanges, bistrique vertical centrifugal pump 46 delivery port flanges link to each other with outlet conduit, and outlet conduit is provided with bistrique one way stop peturn valve 47, bistrique electromagnetic flowmeter 48, bistrique water route pressure transmitter 49 and bistrique water supply outlet valve 50.
The electricity piece setting of mill tail supply equipment among Fig. 4: water intaking valve 51 water inlets are set in water tank 43 bottoms link to each other, mill tail water intaking valve 51 delivery ports are by the continuous vertical centrifugal pump 52 of water inlet flange, mill tail vertical centrifugal pump 52 delivery port flanges link to each other with outlet conduit, and outlet conduit is provided with mill tail one way stop peturn valve 53, mill tail electromagnetic flowmeter 54, mill tail water road pressure transmitter 55 and mill tail water supply outlet valve 56.
The electricity piece setting of circulating cooling supply equipment: comprise circulation water intaking valve 57, circulation vertical centrifugal pump 58, circulation waterway pressure transmitter 59, outlet valve 60; Water tank 43 bottoms link to each other with circulation water intaking valve 57 water inlets, circulation water intaking valve 57 delivery ports link to each other with circulation vertical centrifugal pump 58 water inlet flanges, circulation vertical centrifugal pump 58 delivery port flanges link to each other with outlet conduit, and outlet conduit is provided with circulation waterway pressure transmitter 59 and recycles water valve 60.
The electricity piece setting of compressed air supply arrangement among Fig. 4: gas circuit stop valve 61 links to each other with the source of the gas pipeline before the control valve, be provided with successively stop valve 63 behind gas circuit control valve 62, the control valve, gas circuit pressure transmitter 64, bistrique gas circuit motor-driven valve 65 on the source of the gas pipeline, and between gas circuit pressure transmitter 64 and bistrique gas circuit motor-driven valve 65 and combination mill exhaust gas path motor-driven valve 66.
Basic function of the present utility model is the injection flow rate according to the variation automatic adjusting jet-gun of flue-gas temperature, after fully mixing in atomizer 18 by water and compressed air, eject atomized water, the mode that absorbs material heat in the cement mill is lowered the temperature, and guarantees that the cement grinding mill outlet temperature maintains in the suitable temperature range (105 ℃～100 ℃).During work, the water source filters through filter 40, water inlet motor-driven valve 41 is opened, liquid level in the water tank 43 detects to reach by ultrasonic level gage 44 and sets when requiring, water inlet motor-driven valve 41 cuts out, intelligence system is by pan feeding temperature 5 and the monitoring and the calculating that go out to grind temperature 11, control respectively the injection flow rate size of bistrique supply equipment and mill tail supply equipment, the water source arrives water tank 43 after filtering through filter 40, boost and be adjusted to certain pressure (0.4～0.6MPa) and flow (0～2T/H) by variable frequency pump, deliver to spray gun through export pipeline, after going out to grind the two PID computings of temperature and spray flow, regulate pump rotary speed, to reach accurately the steadily purpose of cooling.The recirculated cooling water working method, at first water intaking valve 57 is opened, make cooling water top-off cycle vertical centrifugal pump 58, flow into again water route outlet valve 60, by outlet pipeline cooling water is delivered in the water vapor seal conversion equipment 10, water route, water route pressure transmitter 59 detects the hydraulic pressure of cooling water, and be sent to PLC in the control device, cooling water pressure is pressed with mill tail water and mill tail gas is compressed into row relatively, calculate through PID, by three each pump rotary speeds of Frequency Converter Control, accurately control cooling water pressure, cooling water pressure is equaled or be slightly larger than and grind tail water pressure and mill tail gas pressure, thereby make the water vapor seal conversion equipment play good sealing effectiveness, prolong the service life of rubber seal.
The gas circuit working method, at first gas circuit stop valve 61 before the control valve is opened, make source of the gas enter gas circuit control valve 62, the gas circuit control valve is adjusted compressed-air actuated output pressure, by gas circuit pressure transmitter 64 detected pressures, and be sent to PLC in the control device, when compressed air pressure during greater than setting value, bistrique gas circuit motor-driven valve 65 and mill exhaust gas path motor-driven valve 66 are opened, and compressed air are exported to the gas circuit entrance 13 of atomizing lance by outlet pipe.
Low-pressure water in the atomizing lance atomizes under compressed-air actuated effect, produces very tiny atomizing particle, and water smoke is rapidly evaporation in high-temperature flue gas, absorbs the amount of heat of flue gas, uses the mill temperature and is controlled in 105 ℃.
Electrical control cabinet 9 is responsible for the control of each equipment working state of mist cooling, after system's startup knob 21 is opened, it is bright that system moves 31 lamps, after grinding machine interlocking run signal 30 is delivered to PLC, gas circuit motor-driven valve switch 35 is opened, calculate to select the switch of bistrique water pump 36 and mill tail water pump 37 according to design temperature 32 and the difference that goes out to grind temperature 24, by design temperature 32, go out to grind temperature 24, bistrique discharge, mill tail water flow makes up two PID computings, rely on frequency converter to adjust the rotating speed of bistrique water pump 36 and mill tail water pump 37, after system starts, circulating cooling water pump 38 starts automatically, automatically adjust the rotating speed output of circulating cooling water pump by frequency converter according to mill tail water road pressure 25 and gas circuit pressure 28, make water vapor seal conversion equipment 10 play good sealing effectiveness, close or go out to grind after temperature is lower than design temperature when system starts knob 21, bistrique water pump 36 and mill tail water pump 37 quit work, and enter holding state.
Automatic electrical control system use Siemens PLC C controller adds the common realization of touch-screen; data communication device is crossed communication cable 39 all parameter settings can be realized by this touch screen interface between PLC and the touch-screen; controller provides multistage cipher protection function, prevents that some parameter unexpectedly or without permission is modified.
Claims (4)
1. cement mill is controlled mist cooling equipment automatically, comprise that water storage, bistrique supply water, the mill tail supplies water, circulating cooling supplies water and spray cooling device, touch-screen and the electrical control cabinet of compressed air supply arrangement, it is characterized in that at the cement mill two ends bistrique spray gun being installed respectively and being ground the tail spray gun, set into material temperature degree sensor in the bistrique import, the drop temperature sensor is set and goes out to grind the wind-warm syndrome sensor at the mill tail, install the water vapor seal conversion equipment additional at delivery port; Configuration is automatically controlled the electrical control cabinet of cooling and electricity piece is set in spray cooling device, the terminal plate of electrical control cabinet connects respectively each electricity piece in three phase mains, each end that links to each other with control program module PLC, touch-screen and the spray cooling device, the water pump of circulating cooling water pump, bistrique and mill tail all is communicated with control program module PLC through separately frequency converter, realizes accurately control.
2. automatically control mist cooling equipment according to right 1 described cement mill, it is characterized in that described bistrique spray gun (2) and mill tail spray gun (6), gun barrel (20) has waterway inlet (12), gas circuit entrance (13), increase the sleeve (16) of wear-resistant protection outside the gun body between spray gun mounting flange (14) and shower nozzle (18) knuckle place, be wrapped in along the uniform water route bellows (17) of perisporium and at sleeve (16) end adjacent with mounting flange (14) interval a shelves gas plate (15) is installed; Adopting mixing wastewater with air type shower nozzle (18), have 8 aerosol fluids around circumference to portal (19) in the shower nozzle (18), is gas circuit in the center of circle.
3. automatically control mist cooling equipment according to right 1 described cement mill, it is characterized in that water route, the gas circuit in the described spray cooling device (8) has electric setting, all control by frequency converter, realize the accurate control of automatic control program;
The electrical configurations of described water memory device: water inflow filter (40), water inlet motor-driven valve (41) are set between water tank (43) and water source, at water tank (43) draining motor-driven valve (42), ultrasonic water tank liquid level gauge (44) are set;
The electrical configurations of described bistrique supply equipment: water intaking valve (45) is set in water tank (43) bottom, link to each other with water inlet, bistrique water intaking valve (45) delivery port links to each other with bistrique vertical centrifugal pump (46) water inlet flange, bistrique vertical centrifugal pump (46) delivery port flange links to each other with outlet conduit, and outlet conduit is provided with bistrique one way stop peturn valve (47), bistrique electromagnetic flowmeter (48), bistrique water route pressure transmitter (49) and bistrique water supply outlet valve (50);
The electricity piece setting of described mill tail supply equipment: in water tank (43) bottom water intaking valve (51) water inlet is set and links to each other, mill tail water intaking valve (51) delivery port is by the continuous vertical centrifugal pump (52) of water inlet flange, mill tail vertical centrifugal pump (52) delivery port flange links to each other with outlet conduit, and outlet conduit is provided with mill tail one way stop peturn valve (53), mill tail electromagnetic flowmeter (54), mill tail water road pressure transmitter (55) and mill tail water supply outlet valve (56);
The electricity piece setting of described circulating cooling supply equipment: comprise circulation water intaking valve (57), circulation vertical centrifugal pump (58), circulation waterway pressure transmitter (59), outlet valve (60); Water tank (43) bottom links to each other with circulation water intaking valve (57) water inlet, circulation water intaking valve (57) delivery port links to each other with circulation vertical centrifugal pump (58) water inlet flange, circulation vertical centrifugal pump (58) delivery port flange links to each other with outlet conduit, and outlet conduit is provided with circulation waterway pressure transmitter (59) and recycles water valve (60);
The electricity piece setting of described compressed air supply arrangement: gas circuit stop valve (61) links to each other with supply air line before the control valve, be provided with successively stop valve (63) behind gas circuit control valve (62), the control valve, gas circuit pressure transmitter (64), bistrique gas circuit motor-driven valve (65) on the supply air line, and between gas circuit pressure transmitter (64) and bistrique gas circuit motor-driven valve (65) and combination mill exhaust gas path motor-driven valve (66).
4. automatically control mist cooling equipment according to right 1 described cement mill, be connected by cable (39) between the control program module PLC that it is characterized in that having in the described electrical control cabinet (9) Programmable Logic Controller (71) and the touch-screen (67), with be system's start end (21) successively on the terminal plate that control program module PLC is connected, the signal end (22) of ultrasonic water tank liquid level gauge (44), pan feeding temperature signal end (23), go out to grind temperature signal end (24), mill tail water road pressure end (25), bistrique discharge end (26), bistrique water route pressure end (27), gas circuit pressure end (28), mill tail water flow end (29), grinding machine run signal end (30), system's run signal end (31), temperature setting fixed end (32), the bistrique water pump opens/stops end (33), mill tail water pump opens/stops end (34), gas circuit motor-driven valve switch terminals (35), the 380V alternating current three-phase electricity source (36) that wherein is connected with the bistrique water pump, the three-phase electricity source (37) that is connected with mill tail water pump, the three-phase electricity source (38) that is connected with the circulating cooling water pump also connects respectively first, second, the 3rd frequency converter (68～70) is regulated respectively described three water pumps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320114888 CN203196743U (en) | 2013-03-14 | 2013-03-14 | Automatic control spraying cooling equipment of cement mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320114888 CN203196743U (en) | 2013-03-14 | 2013-03-14 | Automatic control spraying cooling equipment of cement mill |
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| Publication Number | Publication Date |
|---|---|
| CN203196743U true CN203196743U (en) | 2013-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320114888 Expired - Fee Related CN203196743U (en) | 2013-03-14 | 2013-03-14 | Automatic control spraying cooling equipment of cement mill |
Country Status (1)
| Country | Link |
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| CN (1) | CN203196743U (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 |
| CN104674882A (en) * | 2015-01-20 | 2015-06-03 | 佛山市南海九洲普惠风机有限公司 | Medium-voltage water supply device for spray cooling fan |
-
2013
- 2013-03-14 CN CN 201320114888 patent/CN203196743U/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 |
| CN104674882A (en) * | 2015-01-20 | 2015-06-03 | 佛山市南海九洲普惠风机有限公司 | Medium-voltage water supply device for spray cooling fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20140314 |