CN2071756U - Clinker cooling conveyer - Google Patents

Abstract

The utility model relates to a clinker cooling conveyer for boiling clinker, which is mainly comprises a charging chute with a water-jacket, a cylinder whose outer surface is welded with a heat-sink and whose inner surface is lined with screw blades and a discharging chute with air suction pipe. After the heat clinker goes into the cylinder from the charging chute, the heat clinker ceaselessly stirs and advances. One part of heat quantity is carried away by the aqueous medium through the chute walls and the cylinder walls, and the other part of heat quantity is exhausted through the air suction pipe. Because the utility model adopts the multistage cooling system, the effect of cooling is good and the coke during the treating process of discharging clinker is avoided. The clinker cooling conveyer can be used for processing the boiling clinker in dry type when the temperature of the treating clinker reaches more than 850 DEG. The gearing device adopts double stage cycloid gear reducing device, so the utility model which has the advantages of balanced and reliable transmission, simple structure, light weight and low cost is suitable for adopting in the industry.

Description

Clinker cooling conveyer

The utility model relates to the cooling of a kind of spoil power plant fluidized bed furnace slag and the machinery of transportation.

Utilize the spoil power plant of spoil and low calorie fuels generating to increase year by year in recent years.Adopt dry process that the slag of fluidized bed furnace is handled in order to conserve water and to fully utilize the slag requirement.But when slag is come out of the stove, generally can reach more than 850 ℃, and the heat-resisting scraper plate that uses at present can only be suitable for 600 ℃ slag, therefore still can not satisfy the needs in the production.Domesticly once developed air-cooled slag cooler, but produced plugging, this equipment price costliness simultaneously, practical application difficulty owing to warm sludge forms coking in exchange.In addition, once reported outside a kind of slag cooling processing technology employing pipe and walk slag, and walked cooling water in the pipe, this Slagoff method is same because and generation plugging phenomenon can not be guaranteed normal use.Simultaneously, the technology slag cooling-down effect of above-mentioned employing is also bad.Therefore, boiling furnace slag deslagging technology is still central issue anxious to be solved in the fluidized bed furnace production process.

The purpose of this utility model provides a kind of slag cooling transporting equipment that is used for fluidized bed furnace, adopts this equipment can make slag can be cooled and avoid the tapping process coking effectively in transportation, normally moves to guarantee transporter.

The purpose of this utility model is achieved in that

1, multistage cooling procedure of design and radiating treatment device had both made cooled slag effectively, can adopt high temperature resistant relatively poor slag treatment parts at present again;

2, design slag agitating device constantly stirs slag, thereby has avoided coking assurance equipment normally to move in tapping process.

Specifically the utility model slag cooling conveyer is made up of cylinder, pan feeding chute and three major parts of discharging chute, and cylinder is the main body of transporter, and the pan feeding chute is positioned at the cylinder front portion, and discharging chute is in its rear portion.Transmission device is set on the cylinder,, water-cooling apparatus is set simultaneously again so that the running intermediate roll gyrates, to the cylinder surface shower water to reduce bowl temperature.Of the present utility model being characterised in that on the surface of cylinder is added with fin, increased the cylinder radiating efficiency, studs with helical blade simultaneously in cylinder, and hot slag constantly stirs in cylinder, and moves vertically, can avoid coking to produce like this.Except that setting up water-cooling apparatus on the cylinder and cylinder surface radiation fin etc. is handled, become the pan feeding chute of water-jacket typ in the pan feeding chute design, the warm sludge of discharging from boiling is at first cooled off, and then enter cylinder; Set up aspiration channel on the discharging chute simultaneously, the thermal current in the cylinder is sucked out from aspiration channel, is equivalent to be provided with an air cooling setting in cylinder, thereby has realized multistage cooling procedure of the present utility model.

The process that the utility model is handled slag is: discharge warm sludge from fluidized bed furnace and enter the pan feeding chute, after the pan feeding chute cooling of water-jacket typ, send into transporter main body cylinder upper end, stud with helical blade in the cylinder, along with driving cylinder, transmission device presses the certain speed rotation, spiral shell is executed blade and is stirred warm sludge, and warm sludge moved to discharging chute vertically, set up aspiration channel on the discharging chute, with the continuous sucking-off of thermal current in the cylinder, both realized the air air cooling in the cylinder, can avoid dirt sound of sighing outer raising again, keep the discharging opening operating environment dustless; Water-cooling apparatus on cylinder is constantly to the cylinder surface spraying cooling water, to reduce bowl temperature.Simultaneously, the hot water that obtains of the utility model heat exchange and hot blast can be used as other thermal source and handle heat energy is fully utilized.The concrete structure of slag cooling conveyer can be elaborated by the accompanying drawing as the utility model embodiment.

Fig. 1 is the front view of the utility model slag cooling conveyer; Fig. 2 is the vertical view of this machine; Fig. 3 is the side view of this machine; Fig. 4 is the half-sectional view of cylinder; Fig. 5 is that cylinder is along A-A face profile; Fig. 6 is a cylinder carrying roller group profile; Fig. 7 is the sparge pipe nozzle profile of cylinder water-cooling apparatus; Fig. 8 is a pan feeding chute profile; Fig. 9 is discharging chute and aspiration channel profile.Among the figure: 1, pan feeding chute; 2, cylinder; 3 motors; 4,5, driving and driven gear; 6, water-cooling-sprayer; 7, Support for water tank; 8, carrying roller; 9, rolling ring; 10, discharging chute; 11, aspiration channel; 12, helical blade; 13, fin; 14, riser.

By slag transporter shown in Fig. 1～3 by the pan feeding chute, cylinder, transmission device, water-cooling apparatus, discharging chute and aspiration channel are formed.Cylinder 2 is main bodys of transporter, its headend equipment has pan feeding chute 1, discharging chute 10 is set thereafter, transmission device is by motor 3, driving gear 4 and driven gear 5 constitute power drive system, and this transmission system adopts the twin-stage cycloidal gear speed reducer, stable drive is reliable, and is simple in structure and in light weight.Simultaneously for the frictional force that reduces the cylinder rotation process is with rolling ring 9 on cylinder, 9 of rolling rings are rolling friction when cylinder is rotated on carrying roller 8.The water-cooling apparatus of cylinder is made up of water cooling shower nozzle 6 and Support for water tank 7, and Support for water tank 7 is again the main body frame of transporter simultaneously, and pan feeding chute 1, carrying roller 8, discharging chute 10 all are fixed on the Support for water tank 7.Fallen in the water tank 7 behind cylinder 2 surfaces by shower nozzle 6 ejection cool water shower, quilt is compiled to be used.In addition, the transporter shown in Fig. 1～3 adopts the structure of two cylinders, also can design the transporter structure of two above cylinders as required, and each roller frame is identical.By Fig. 4,5 concrete structure of cylinder is shown, cylindrical shell can be rolled by steel plate and form, and is welded with fin 13 at its outer wall, and for preventing to get rusty, drum outer wall adopts metallising to handle.Be welded with helical blade 12 in the cylinder, be welded with riser 14 at the cylinder discharge end, riser 14 is that coil in a garden that studs with blade, and slag is sent to the feeding mouth of discharging chute after riser 14 promotes.Fig. 6 shows the structure of carrying roller, and carrying roller adopts rolling bearing in order to reduce friction.Simultaneously, to consider sealing property for preventing that muddy water from entering.In addition, rolling ring cylindrical and carrying roller wheel rim will be heat-treated.Fig. 7 illustrates the nozzle structure of sparge pipe, on the sparge pipe a plurality of nozzles can be set and handle so that more fully water cooling is carried out on the tube surface.Get rusty for preventing that sealing is chewed, its outer surface can carry out chromium plating and handle (also can select for use the material system water that is difficult for getting rusty to chew), and establishes valve to regulate the water spray water yield.Fig. 8 illustrates the structure of pan feeding chute 1, and the cold water that chute is made water-jacket typ feeds from its bottom, becomes hot water and drawn by water jacket top after heat exchange.B is a water inlet among the figure, and C is a delivery port, and R is a charging aperture, and CH is a discharging opening.Warm sludge at first is cooled after entering chute, and this structure can prolong the service life of chute simultaneously.Fig. 9 illustrates the structure of discharging chute 10 and aspiration channel 11, and D is an air inlet among the figure, and E is an air outlet, and R is a charging aperture, and CH is a discharging opening.Aspiration channel 11 is made of one with discharging Wenliu groove 10, the air draught mouth of pipe is installed in the discharging chute 10, and its mouth of pipe is positioned on cylinder 2 axis directions, and suction hose is provided with valve to regulate air quantity, and aspiration channel 11 links to each other with air-introduced machine.

The process of being handled hot slag by the utility model shown in Fig. 1～9 is as follows: the slag that fluidized bed furnace is discharged, enter the feeding mouth of pan feeding chute 1, and the warm sludge that is tentatively cooled off enters cylinder 2 by the discharging opening of pan feeding chute.Motor 3 drives driving gears 4 and driven gear 5 makes cylinder 2 rotate on carrying roller 8 by certain slow speed, enters that warm sludge stirs in cylinder with helical blade 12 rotations in the cylinder, and cylinder is not held mobile vertically.Cooling water drenches down from shower nozzle 6 sprays and swashs at cylinder surface, and cylinder is lowered the temperature, because cylinder surface is welded with fin 13, it is long-pending to have increased cylinder surface simultaneously, promotes heat exchanging process.In addition, because the getter action of aspiration channel 11, make that the hot gas flow velocity is fast in the cylinder is discharged from, reduce a temperature in the tube.Warm sludge is discharged to cylinder and does not hold through riser 14 it is promoted, and sends into the charging aperture of discharging chute 10, discharges the slag cooling processing process of finishing by discharging opening at last.Produce certain negative pressure in the cylinder because aspiration channel 11 makes, slag dust can not be raised outward, so can keep the environmental sanitation of tapping process and good operating condition.

The utility model has solved cooling and coking in the fluidized bed furnace deslagging running preferably owing to adopt multistage heat exchange and stir the warm sludge processing from the above, guarantees the normal effectively operation of transporter.In addition, because transmission device adopts the twin-stage cycloidal gear speed reducer, stable drive is reliable, and is simple in structure, can reduce the cost of transporter, is suitable for generally adopting.

Claims (3)

1, a kind of fluidized bed furnace slag cooling conveyer is made up of cylinder, pan feeding chute, discharging chute, aspiration channel, transmission device and several parts of water-cooling apparatus, it is characterized in that being added with fin as the cylinder surface of this machine main body, studs with helical blade within it.

2, according to the described transporter of claim 1, it is characterized in that the discharge end of cylinder 2 is welded with riser 14, riser 14 is one to stud with the disk of blade.

3, according to the described transporter of claim 1, it is characterized in that discharging chute 10 and aspiration channel 11 are to be structure as a whole, aspiration channel 11 is installed in the discharging chute 10, and its mouth of pipe is positioned on cylinder 2 axis directions.