Tobacco residual peduncle drying machine
Technical field
The present invention relates to the stubble drying plant of tobacco business.
Background technology
Tobacco residual peduncle is the leftover bits and pieces that produces in cigar mill's stem process, though the few moisture content height of this part material amount has the value of utilizing again, but supplies raw materials for the processing thin slice after the drying.If, can waste great amount of manpower and material resources with equipment oven dry stubbles such as throwing line cut-tobacco driers.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, according to quantity, the moisture content of present stubble, provide a kind of efficient height, dry fast tobacco residual peduncle drying machine.
For achieving the above object, the present invention adopts following technical solution:
Tobacco residual peduncle drying machine is made up of steam pipework, spiral heating conveying axis, moisture-eliminating blower, transmission device, oven dry storehouse, fuselage and feed hopper, the oven dry storehouse is installed on the fuselage, its both sides are provided with interlayer, the top is provided with openable insulation door, oven dry storehouse feed end is provided with feed hopper, and discharge end is provided with discharging opening; The spiral heating conveying axis is a hollow shaft, is installed in the oven dry storehouse, and its two ends all are connected by swivel joint with discharge end with oven dry storehouse feed end, and an end is connected with transmission device; Moisture-eliminating blower is installed in the top of oven dry warehouse discharging end; Oven dry storehouse feed end is connected with hydrophobic pipeline by swivel joint, and oven dry warehouse discharging end is connected with steam pipework by swivel joint; Steam enters spiral air-cored axis inner chamber by pipeline, swivel joint on the one hand, is entered in the interlayer chamber by feed end by pipeline on the other hand, and the interlayer other end is connected with hydrophobic pipeline.
The pressure of required steam is 0.5-0.8Mpa.
Be provided with pressure-reducing valve, safety valve in the steam pipework in feed end enters the interlayer chamber, the steam pressure in the interlayer remained on below the 0.4Mpa, to guarantee safety.
The interlayer inherence in oven dry storehouse is in length and breadth to being equipped with support bar respectively, to improve its intensity.
The interlayer outside in oven dry storehouse is equipped with dismountable warming plate.
Be evenly distributed with flight on the spiral heating conveying axis, between adjacent two flights axially on add switch-plate.
Broken stalk material is entered in the oven dry storehouse by feed hopper by the charging groove that shakes, and the spiral heating conveying axis rotates under transmission device drives, and promotes broken stalk material and moves ahead, and switch-plate is with the stirring of rolling of stubble material simultaneously.High-temperature steam moves in oven dry storehouse interlayer and spiral heating conveying axis, makes broken stalk material heating, drying, and the broken stalk material after the oven dry is discharged by oven dry warehouse discharging mouth.The moisture that moisture-eliminating blower can in time produce broken stalk material is in time got rid of.After this dryer was out of service, the condensed water that produces in the steam pipework can be discharged by hydrophobic pipeline.
The present invention enters Steam Heating simultaneously by oven dry storehouse interlayer and spiral heating conveying axis and dries broken stalk material, and broken stalk material is in the stirring-type oven-dried condition of rolling under the effect of spiral heating conveying axis, and thermal efficiency height, oven dry is fast, flow is moderate.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the cutaway view along the A-A line shown in Figure 1.
Among the figure: 1, fuselage, 2, discharging opening, 3, the oven dry storehouse, 4, steam pipework, 5, swivel joint, 6, moisture-eliminating blower, 7, insulation door, 8, the spiral heating conveying axis, 9, switch-plate, 10, feed hopper, 11, sprocket wheel, 12, interlayer, 13, warming plate, 14, handle.
The specific embodiment
Embodiment
Tobacco residual peduncle drying machine structure of the present invention as depicted in figs. 1 and 2.This tobacco residual peduncle drying machine mainly is made up of steam pipework 4, spiral heating conveying axis 6, moisture-eliminating blower 6, transmission device, oven dry storehouse 3, fuselage 1 and feed hopper 10.Oven dry storehouse 4 is installed on the fuselage 5, and its both sides are provided with interlayer 12, and the top is provided with openable insulation door 7, and oven dry storehouse feed end is provided with feed hopper 10, and discharge end is provided with discharging opening 2.Spiral heating conveying axis 5 is a hollow shaft, is installed in the oven dry storehouse 3, and its two ends all are connected by swivel joint 5 with discharge end with oven dry storehouse feed end, and an end is equipped with sprocket wheel 11.Moisture-eliminating blower 6 is installed in the top of the discharge end in oven dry storehouse 3.Oven dry storehouse 3 feed ends are connected with hydrophobic pipeline by swivel joint, and oven dry storehouse 3 discharge ends are connected with steam pipework 4 by swivel joint.Steam enters spiral air-cored axis inner chamber by pipeline, swivel joint on the one hand, is entered in the interlayer 12 by feed end by pipeline on the other hand, and the interlayer other end is connected with hydrophobic pipeline.Below various piece is described in detail.
Steam pipework 4:
Pressure is that the steam of 0.5-0.8Mpa enters the branch drum by main valve, divides two-way to enter dryer interlayer 12 and spiral heating conveying axis 5 respectively then.Wherein one the tunnel enter by swivel joint in the hollow shaft of spiral heating conveying axis 5, be connected with hydrophobic pipeline by swivel joint at feed end at the dryer discharge end.In order to ensure safety, another road steam enters pressure-reducing valve, safety valve successively and is entered in the interlayer 12 by feed end, and the steam pressure in the interlayer is remained on below the 0.4Mpa.Be connected with hydrophobic pipeline at the interlayer other end.
Oven dry storehouse 3:
Oven dry storehouse 3 is the U type, and gradient is 15 degree.Feed end is provided with feed hopper 10, and discharge end is provided with discharging opening 2.Interlayer 12 ectonexines are made by 3 millimeters corrosion resistant plates, and the interlayer gap is 15 millimeters, for guaranteeing safety, in length and breadth to support bar is housed respectively.After the preheating normal operation in 15 minutes, the interlayer inner wall temperature can reach 120-128 ℃.Simultaneously,, dismountable warming plate 13 all has been installed, the equipment surface temperature is controlled at below 35 ℃ in the thermal treatment zone for making the effectively energy-conservation and reduction equipment surface temperature of dryer.The top in oven dry storehouse 3 is provided with openable insulation door 7, so that the maintenance maintenance has handle 14 on it, insulation door 7 bottom surfaces are provided with sealing gasket.
Spiral heating conveying axis 8:
The main shaft external diameter of spiral heating conveying axis 8 is 80 millimeters, and the stainless steel tube that wall thickness is 10 millimeters is installed in the oven dry storehouse 3.Because the heat expansion elongation of main shaft is spent and prevented in helical axis inclination 15, selects 30317 bearings for use at feed end, the other end adopts 7217 bearings.Be uniform-distribution with flight on heating cabinet inside spin axle, for making the effective transferring heat energy of flight, flight and main shaft adopt two-sided full weldering.Simultaneously for more effectively make material evenly and rapidly heating evaporation fall moisture, between adjacent two flights, axially installed switch-plate 9 additional.Material constantly rolls under the effect of switch-plate 9 in course of conveying, makes its homogeneous heating, and humidity discharging is rapid.Spiral heating conveying axis 8 temperature when normal operation can reach 130-148 ℃, and the temperature of flight can reach 120-128 ℃.
Transmission device:
Transmission device adopts the chain transmission, and as main transmission power, cycloidal planetary gear speed reducer is installed on 3 outer walls of oven dry storehouse (among the figure not picture place) with XWD3-0.55KW-69 type cycloidal planetary gear speed reducer." chain drive, the sprocket wheel 11 on the spiral heating conveying axis 5 is connected with the drive sprocket on the reductor in employing 5/8.Because supplied materials moisture fluctuation big (between the 15%-26%) in order to satisfy technological requirement, is fitted with frequency converter on main driving motor, the operative employee can adjust to 8.68RPM by 1.736RPM with the rotating speed of spiral heating conveying axis 5.
Moisture-eliminating blower 6:
Selecting power for use according to the actual volume in oven dry storehouse 3 is 0.185KW, and air quantity is 320 cubic metres/hour a moisture-eliminating blower, so that the upsurge wind that will dry in the storehouse is in time discharged.