The granular material dryer
Technical field
The utility model relates to drying plant, especially relates to a kind of granular material dryer.
Background technology
In the sugaring field, need in starch, add syrup on the production technology, its water content of the composite material of syrup and starch is higher, need carry out oven dry to a certain degree.In the drying course, oven dry waste gas is taken away material easily, makes material run off with waste gas, causes damage.And the heat that exists in the oven dry waste gas just directly is discharged from, and causes waste.This just needs a kind of drying plant, can carry out drying in the short period of time, waste gas residual heat can be recycled, and the material in the recovery waste gas, reduce the loss of material, reduce the loss of heat.
Summary of the invention
Therefore, at above-mentioned problem, the utility model provides a kind of waste gas residual heat that makes full use of, and reclaims the granular material dryer of the material in the waste gas.
For achieving the above object, the utility model is achieved through the following technical solutions: the granular material dryer, comprise feeder, first drying tube, first cyclone, heater, blower fan, second drying tube, second cyclone, wind stopping device, wet dust catcher, first warm-air pipe and second warm-air pipe, described feeder one end is connected with first drying tube, the feeder other end is connected with the air outlet of blower fan, the first drying tube other end is connected with first cyclone, described first cyclone upper end is provided with Waste gas outlet, floss hole is connected with wet dust catcher by pipeline, the first cyclone lower end is provided with discharging opening, discharging opening is connected with first warm-air pipe, one end of first warm-air pipe is connected with heater, the other end of first warm-air pipe is connected with second drying tube, second drying tube is connected to second cyclone, second cyclone is connected to wind stopping device, and heater also is connected with second warm-air pipe, second warm-air pipe and the air inlet that is connected to blower fan after the flue gas leading of second cyclone communicates.
Further improve and be: also be provided with first control valve between the described heater and first warm-air pipe.
Further improve and be: also be provided with second control valve between the described heater and second warm-air pipe.
By adopting the aforementioned techniques scheme, the beneficial effects of the utility model are: second warm-air pipe and the air inlet that is connected to blower fan after the flue gas leading of second cyclone communicates, can reclaim the material of being taken away by waste gas in the second cyclone waste gas, and the heat in the waste gas can be recycled again; Simultaneously, the heat that heater produces is except being taken away by first warm-air pipe, and some is sent into second heat and is in charge of, and the heat that makes heater produce is fully utilized.First control valve and second control valve can be regulated according to the hot blast rate in first warm-air pipe and second warm-air pipe in actual production.
Description of drawings
Fig. 1 is the schematic flow sheet of the utility model embodiment.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
Embodiment:
With reference to figure 1, present embodiment discloses a kind of granular material dryer, comprise feeder 1, drying tube 2, blower fan 3, cyclone 4, heater 5, warm-air pipe 6, drying tube 7, cyclone 8, wind stopping device 9, wet dust catcher 10, warm-air pipe 11, control valve 12 and control valve 13, wherein:
One end of described feeder 1 is connected with drying tube 2, and the other end of feeder 1 is connected with the air outlet of blower fan 3, and blower fan 3 is sent into wind in the feeder 1, and the material that promotes in the feeder 1 is carried to drying tube 2.The other end of drying tube 2 is connected with cyclone 4, and drying tube 2 carries out drying with material, and drying materials to semi-finished product are sent in the half-finished cyclone 4 of splendid attire.Cyclone 4 upper ends are provided with Waste gas outlet, and floss hole is connected with wet dust catcher 10 by pipeline, wet dust catcher 10 (not shown) that also is connected with basin, water pump.After waste gas is sent into wet dust catcher 10, after the step that reclaims the starch post processing, send outside the system.Cyclone 4 lower ends are provided with discharging opening, discharging opening is connected with warm-air pipe 6, one end of warm-air pipe 6 is connected with heater 5, the other end of warm-air pipe 6 is connected with drying tube 7, drying tube 7 is connected to cyclone 8, cyclone 8 is connected to wind stopping device 9, isolates finished product starch by cyclone 8, discharges outside the granular material dryer of present embodiment through wind stopping device 9 then.
Heater 5 also is connected with warm-air pipe 11, and warm-air pipe 6 and warm-air pipe 11 are parallel on the heater 5.Warm-air pipe 11 communicates at pipeline 14 places with the flue gas leading of cyclone 8, is connected to the air inlet of blower fan 3 after identical, makes the material of discharging with waste gas in the cyclone 8 to recycle again, and the heat in the waste gas can recycle again, saves resource.Simultaneously, the heat that heater 5 produces is except being taken away by warm-air pipe 6, and some is sent into heat and is in charge of 11, and the heat that makes heater 5 produce is fully utilized.
Also be provided with control valve 12 between described heater 5 and the warm-air pipe 6, also be provided with control valve 13 between heater 5 and the warm-air pipe 11.Control valve 12 and control valve 13 can be regulated according to the hot blast rate in warm-air pipe 6 and the warm-air pipe 11 in actual production.
In the present embodiment, drying tube 2 is directly introduced the drying capacity that hot blast improves drying tube 2, and drying materials to the degree of not gluing wall, is sent in the half-finished cyclone 4 of splendid attire then.In drying tube 7, with drying materials to producing desired humidity range.
The above record only for utilizing the embodiment of this origination techniques content, anyly is familiar with modification, the variation that this skill person uses this creation to do, and all belongs to the claim of this creation opinion, and is not limited to those disclosed embodiments.