CN201488503U

CN201488503U - Rotary guide rail dryer

Info

Publication number: CN201488503U
Application number: CN2009200121496U
Authority: CN
Inventors: 庞文库
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-20
Filing date: 2009-03-20
Publication date: 2010-05-26
Anticipated expiration: 2019-03-20

Abstract

The utility model discloses a rotary guide rail dryer, which comprises a drying chamber, an air distributing chamber and a chimney. The rotary guide rail dryer is characterized in that: the drying chamber has a circular shape; the chimney is arranged at a central position; annular guide rails are arranged in the circumferential drying chamber; a plurality of railcars are arranged on the annular guide rails, and a grate railcar drive mechanism is provided; an air collecting chamber is arranged above the drying chamber; an air distributing chamber is positioned below the drying chamber; and the upper part of the air collecting chamber is connected with the chimney through a flue. The rotary guide rail dryer has the advantages of using the tail gas of a boiler as the energy source of the drying hot air, realizing drying at a low temperature of between 200 DEG C and 150 DEG C, reducing heat consumption and improving heat use efficiency. The grate railcar runs in a circle on rails to ensure that the hot air can effectively and uniformly dry coals. The grate railcar and the radius size of the circular orbit of the grate can be determined and the grate area can be greatly improved according to the actual demand. The rotary guide rail dryer has a single-layer or multi-layer tower structure and occupies small space. The air distributing chamber arranged at bottom of the rotary guide rail dryer is also used as a secondary dust collector, so the coal ash pollution is avoided and the concentration of the soot in the smoke is reduced.

Description

The rotary rail drying machine

Technical field

The utility model belongs to a kind of coal-fired drying equipment, particularly a kind of rotary rail drying machine.

Background technology

Mostly about 10-20%, the brown coal water content is more up to 30% for the coal-fired moisture content of China, because coal-fired water content is higher, causes the fired coal combustion calorific value to descend, and identical heat increases freight volume down.Therefore to dry especially brown coal oven dry be the important behave that improves coal-fired calorific value and save transport power to coal.

At present, the coal in China dry technology is comparatively backward, and existing coal drying equipment adopts the cylinder-rotating drying.Because coal rotates in cylinder, cause most of coal dust to be taken away by hot blast, not only cause energy loss, also caused the pollution of air ambient, the drum-type coal drying needs the hot blast more than 600 ℃ simultaneously, heat energy expends height, and equipment exhaust emissions temperature is up to 100-120 ℃, and the heat energy utilization rate is lower.Equipment occupation space is big in addition.

The utility model content

The purpose of this utility model provides a kind of rotary rail drying machine, does not have coal ash pollution, also can remove the concentration of flue dust in the low cigarette institute, and heat energy expends low, raising heat energy utilization rate, and equipment occupation space is little.

The purpose of this utility model is achieved by the following technical solution: it comprises the hothouse of band cloth air port and exhaust opening, it is characterized in that: hothouse is circle-shaped, chimney is arranged on middle position, in circle-shaped hothouse, ring-shaped guide rail is set, a plurality of fire grate railcars are arranged on the ring-shaped guide rail, and fire grate railcar driving mechanism is set, and the top of hothouse is a wind assembling set, the below is an air compartment, and the cloth air port of air compartment connects hot-flow flue by warm-air pipe.The top of wind assembling set connects chimney by smoke exhaust pipe.

Above-mentioned rotary rail drier structure can be designed to the single-row or multilayer multiple row of individual layer or laminates is changed to tower structure.Advantage of the present utility model:

1, can utilize boiler exhaust gas as the oven dry hot blast energy, realize 200 ℃-150 ℃ low temperature drying, heat energy expends low, improves the heat energy utilization rate.

2, the fire grate railcar adopts track circumference motion, coal to distribute equably on the air distribution plate, and unique air distribution plate design can guarantee that hot blast dries coal effectively equably.

3, the rotary rail drying machine adopts the track circumference motion, can determine fire grate railcar and fire grate track circumference radius size according to actual needs, has greatly improved grate area.

4, the rotary rail drier structure can be designed to the single-row or multilayer multiple row of individual layer or laminates is changed to tower structure, and equipment occupation space is little.

5, rotary rail drying machine bottom air compartment does not only have coal ash pollution simultaneously also as secondary ash collector, also can remove low cigarette in the concentration of flue dust.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is that a plurality of railcar of the present utility model is arranged on vertical view on the ring-shaped guide rail.

Fig. 3 is the A-A cutaway view of Fig. 1.

Fig. 4 is that the base plate of railcar is dug structural representation.

Fig. 5 is the drives structure schematic diagram of railcar.

The specific embodiment

See Fig. 1-5, concrete structure is as follows: hothouse 6 is designed to circle-shaped, and chimney 3 is arranged on middle position, and ring-shaped guide rail 7 is set in circle-shaped hothouse 6, and a plurality of railcars 8 are assembled on the ring-shaped guide rail 7 by rail wheel 20.The drives structure of railcar can be taked prior art, also can take following structure: be provided with the shifting part 21 that drives by motor 22 below guide rail 7, shifting part 21 is to connect driving lever on the disk that rotates.Stir 8 operations of a railcar by shifting part 21, and this railcar 8 promotes previous operation, transferring power successively.Be wind assembling set above hothouse 6, the below is an air compartment 13, and air compartment 13 is provided with cloth air port 11, and cloth air port 11 is communicated with hot-flow flue 5 by warm-air pipe 9.Ash leakage hole 12 is arranged at the bottom of air compartment 13.The air inlet of air compartment 13 connects boiler exhaust gas outlet side (not shown).The top of wind assembling set is connected discharge flue 2 by smoke exhaust pipe 4 with blower fan 10, and discharge flue 2 connects chimney 3 by smokejack 14.The base plate 15 of railcar 8 is hinged on the railcar framework 16 by hinge 17.In order to unload the coal charge of oven dry automatically, unload mechanism in the afterbody setting of oven dry coal charge passage: divide into the top set lifting device at ring-shaped guide rail.Jacking system is the jack-up bar 18 that drives by motor 19.

Structure of the present utility model can be designed as the single-row or multilayer multiple row structure of individual layer or laminates is changed to tower structure.

Operation principle: employing be railcar fire grate cloth coal form, fire grate railcar 8 rotatablely moves along guide rail, coal is evenly distributed on the railcar fire grate, hot blast equably by the coal seam, does not have coal dust to be taken up by hot blast from railcar bottom air compartment 13, after flue gas enters air compartment 13 simultaneously, because dilatation rapidly, flue gas flow rate descends, and most of flue dust also can be separated from flue gas under the effect of gravity, plays the effect of final dusting.

Claims

1. rotary rail drying machine, it comprises the hothouse of band cloth air port and exhaust opening, it is characterized in that: hothouse is circle-shaped, and chimney is arranged on middle position, in circle-shaped hothouse ring-shaped guide rail is set, a plurality of fire grate railcars are arranged on the ring-shaped guide rail, and fire grate railcar driving mechanism is set, and the top of hothouse is a wind assembling set, the below is an air compartment, the cloth air port of air compartment connects hot-flow flue by warm-air pipe, and the top of wind assembling set connects chimney by smoke exhaust pipe.

2. rotary rail drying machine according to claim 1 is characterized in that: the rotary rail drier structure is the single-row structure of individual layer.

3. rotary rail drying machine according to claim 1 is characterized in that: the rotary rail drier structure is a multilayer multiple row structure.

4. rotary rail drying machine according to claim 1 is characterized in that: the rotary rail drier structure is the multilayer-tower structure.