CN202973780U - Material drying device during biomass charcoal manufacture process - Google Patents

Abstract

The utility model discloses a material drying device during a biomass charcoal manufacture process. The material drying device comprises a pedestal, a spiral feeding device, a hood, a ventilation port, a cylinder body, an axial shoveling plate, a spiral guiding plate, a transmission device, a support device, a tail cover and a discharging port. The material drying device is characterized in that the axial shoveling plate and the spiral guiding plate are separately arranged on the circumference of an inner all of the cylinder body according to a certain distance, the spiral guiding plate is arranged on the side of an air outlet of the cylinder body, and an operation method of materials inside a furnace is spiral propelling flow. By the adoption of the material drying device, contact time and area between the materials and high-temperature gas can be prolonged and enlarged so as to carry out fully heat exchange, gas and solid separation of materials after being dried is simultaneously realized, and heat efficiency of a drum-type drying furnace is improved.

Description

Material drying device in a kind of biological charcoal processing process

Technical field

The utility model relates to the material drying device in a kind of biological charcoal processing process, especially for bamboo wood particle shape material.

Background technology

The operation principle of drum type drying apparatus is to pass into high-temperature gas material is dried in cylinder.Material to be dried is conducted oneself with dignity by material in roller rotating process from an end input of cylinder, pushes each other or evenly moves under the effect of inner wall of rotary drum spiral guide plate.Material after oven dry is exported from the cylinder other end.Traditional sprial drum drying machine due to high-temperature gas in cylinder and the material contact area little, the heat transfer time is short, drying efficiency is greatly affected.By installing elevate a turnable ladder formula lifting blade additional, the drying efficiency of roller drying machine obtains certain lifting.But in the situation that be particulate material by material drying, material can be taken out of from exhaust outlet by hot-air with the form of dust through the lifting blade rear portion, finally causes material loss to increase.

Summary of the invention

The purpose of this utility model is to provide the material drying device in a kind of biological charcoal processing process, realizes by the gas solid separation of material drying, improves the drying unit capacity usage ratio, reduces material loss.

The purpose of this utility model is to realize like this, material drying device in described a kind of biological charcoal processing process, comprise base, screw feeding device, head-shield, blow vent, cylindrical shell, axial flight, spiral guide plate, transmission device, supporting arrangement, hood and discharging opening, it is characterized in that: according to certain spacing spaced apart, axial flight and spiral guide plate are arranged on the inwall circumference of cylindrical shell, one side is furnished with spiral guide plate in the gas outlet of cylindrical shell.

Material drying device in described a kind of biological charcoal processing process, its characteristics are that axial flight is comprised of the rectangular panel that the 2-8 piece is evenly arranged, every rectangular panel vertical axial is installed on cylinder inboard wall; Spiral guide plate is helical lobed and is fixed in cylinder inboard wall.Material drying device in described a kind of biological charcoal processing process, its characteristics are that two groups of adjacent axial flights of interval are staggeredly arranged, and on the axis projection face of cylindrical shell, the projection line of the axial flight that all are adjacent angle between any two equates.It is cylindrical that material drying device in described a kind of biological charcoal processing process, its characteristics are that cylindrical shell is shaped as, and length-to-diameter is 5: 1-15: 1.Material drying device in described a kind of biological charcoal processing process, its characteristics are that cylindrical shell axis and horizontal plane slanted angle are the 1-5 degree.Material drying device in described a kind of biological charcoal processing process, its characteristics are that the rotating speed of described cylindrical shell is 4-10r/min.Material drying device in described a kind of biological charcoal processing process, its characteristics are that the height of described rectangular panel is the 1/4-1/3 of cylindrical shell radius.Material drying device in described a kind of biological charcoal processing process, its characteristics are the adjacent helix pitch of spiral guide plate, the height of spiral guide plate, the rotating speed of cylindrical shell and material drying device feed rate E satisfy relation $E<\frac{1000\mathrm{<figure-callout\; id="2"\; label="Lhv"\; filenames="HDA00002391326500011.png,HDA00002391326500021.png"\; state="\{\{state\}\}">Lhv</figure-callout>}\sqrt{2\mathrm{Rh}-{\mathrm{<figure-callout\; id="2"\; label="h"\; filenames="HDA00002391326500011.png,HDA00002391326500021.png"\; state="\{\{state\}\}">h</figure-callout>}}^2}}{3}(\mathrm{kg}/\min ).$

Advantage of the present utility model mainly contains following three aspects:: the axial flight in cylinder arranges with spiral guide plate even interval, and make material copying in cylindrical shell lift motion and moving movement combination, carry out simultaneously at each position in cylindrical shell.Improve the drying unit heat exchanger effectiveness, effectively avoided material to produce in the situation that inner barrel one end blocks up.At the cylinder afterbody, one section long spiral guide plate is set, the gap that can make the material of having completed dry run be deposited on spiral guide plate is fed forward, and no longer throws and raises.The realization material gas solid separation that is dried reduces dust content in Exhaust Gas, reduces material loss.By will respectively organize adjacent axial flight interlaced arrangement in cylindrical shell, and control its in drum shaft the projection on the perspective plane between any two angle equate all the time, make cylindrical shell throw the process of raising in rotation process and evenly carry out.Effectively improved the high-temperature gas utilization rate, and the situation of avoiding a large amount of materials to incline and from flight simultaneously, thereby improved the operation stability of cylindrical shell, the service life of extending body component and motor.

Description of drawings

Fig. 1 is the utility model embodiment 1 front view.

Fig. 2 is the utility model embodiment 2 front views.

Fig. 3 is A-A profile of the present utility model.

In figure: 1, base; 2, screw feeding device; 3, head-shield; 4, gas outlet; 5, cylindrical shell; 6, axial flight; 7, spiral guide plate; 8, transmission device; 9, supporting arrangement; 10, air inlet; 11, hood; 12, discharging opening.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment, structure of the present utility model and operation principle are elaborated:

material drying device in a kind of biological charcoal processing process described in the utility model, comprise base 1, screw feeding device 2, head-shield 3, blow vent, cylindrical shell 5, axial flight 6, spiral guide plate 7, transmission device 8, supporting arrangement 9, hood 11 and discharging opening 12, blow vent comprises gas outlet 4 and air inlet 10, it is characterized in that: on the inwall circumference of cylindrical shell 5 according to the axial flight 6 of certain spacing spaced apart and spiral guide plate 7, 4 one sides are only arranged spiral guide plate 7 in the gas outlet of cylindrical shell 5, axially flight 6 is comprised of the rectangular panel that the 2-8 piece is evenly arranged, every rectangular panel vertical axial is installed on cylindrical shell 5 inwalls, the helical lobed that is spiral guide plate 7 is fixed in cylindrical shell 5 inwalls.Two groups of adjacent axial flights 6 of interval are staggeredly arranged, and on the axis projection face of cylindrical shell 5, the projection line of the axial flight 6 that all are adjacent angle between any two equates.Cylindrical shell 5 is shaped as cylindrical, and length-to-diameter is 5: 1-15: 1.Cylindrical shell 5 axis and horizontal plane slanted angle are the 1-5 degree.The rotating speed of described cylindrical shell 5 is 4-10r/min.The height l of described rectangular panel is the 1/4-1/3 of cylindrical shell radius R.

The adjacent helix pitch L of above-mentioned spiral guide plate 7, the height h of spiral guide plate, the rotating speed v of cylindrical shell 5 and material drying device feed rate E satisfy relation $E<\frac{1000\mathrm{<figure-callout\; id="2"\; label="Lhv"\; filenames="HDA00002391326500011.png,HDA00002391326500021.png"\; state="\{\{state\}\}">Lhv</figure-callout>}\sqrt{2\mathrm{Rh}-{\mathrm{<figure-callout\; id="2"\; label="h"\; filenames="HDA00002391326500011.png,HDA00002391326500021.png"\; state="\{\{state\}\}">h</figure-callout>}}^2}}{3}(\mathrm{kg}/\min ).$

Embodiment 1: in conjunction with Fig. 1, Fig. 3, the utility model is a kind of material drying device with axial flight and spiral guide plate, comprises base 1, screw feeding device 2, head-shield 3, gas outlet 4, cylindrical shell 5, axial flight 6, spiral guide plate 7, transmission device 8, supporting arrangement 9, air inlet 10, hood 11, discharging opening 12.Material to be dried is sent into cylindrical shell 5 via screw feeding device 2.High-temperature gas passes into cylindrical shell 5 by air inlet 10 from hood 11 through air-introduced machine, and gas flow direction is opposite with the material direction of advance.In inner barrel, material slowly moves to the stove tail under spiral guide plate 7 and deadweight drive; Axially flight 6 is constantly thrown material and is raised in high-temperature gas, realizes that high-temperature gas is to the drying of material.The steam that material produces in dry run and other gas are drawn by gas outlet 4 through air-introduced machine; Dry complete material is discharged by discharging opening 12.

Cylindrical shell 5 of the present utility model, axially flight 6, spiral guide plate 7 employing stainless steels making; Axially flight 6 is comprised of 4 rectangular panel, vertically is fixed in cylindrical shell 5 inwalls; The radius R of cylindrical shell 5 is 0.9m, wherein is provided with altogether three groups of axial flights 6, their projections on the axis projection face of cylindrical shell, and angle is 30 degree between any two; Height h is that the spiral guide plate 7 of 0.15m is welded on the inwall of cylindrical shell 5 according to the helix pitch of L=0.4m; Because needing to complete dry material, air inlet 10 1 sides at cylindrical shell 5 carry out gas solid separation with the high-temperature gas that passes into, need the material that just to have dropped in the gas outlet of cylindrical shell 54 one sides and carry out gas solid separation with the gas with dust that carries out heat exchange, near the head of cylindrical shell 5 and afterbody, spiral guide plate 7 only being installed and axial flight 6 is not set; Whole cylindrical shell 5 level inclinations are 1.8 degree, and cylindrical shell 5 is connected with head-shield, hood 11 adopts movable sealing structure to connect; Motor is connected with gear ring on cylindrical shell 5 outer walls by gear train, adjusts rotating speed by frequency converter, guarantees that under the effect of control system drum speed is stabilized in 4r/min; Under this rotating speed, the maximum feed rate of material is 40kg/min; Also be provided with thermocouple on hood 11, being connected with temperature control system is used for temperature in the Real-time Measuring graduated cylinder; Air inlet 10, gas outlet 4 are equipped with the adjustable air-introduced machine of rotating speed, are used for controlling in real time the high-temperature gas flow, further improve heat transference efficiency.

Embodiment 2: in conjunction with Fig. 2, Fig. 3, the utility model is a kind of material drying device with axial flight and spiral guide plate, comprises base 1, screw feeding device 2, head-shield 3, air inlet 4, cylindrical shell 5, axial flight 6, spiral guide plate 7, transmission device 8, supporting arrangement 9, gas outlet 10, hood 11, discharging opening 12.Material to be dried is sent into cylindrical shell 5 via screw feeding device 2.High-temperature gas directly passes into cylindrical shell 5 through air-introduced machine by air inlet 4, and gas flow direction is identical with the material direction of advance.In this embodiment, head-shield 3 can be reduced to the cover plate form, and stove tail one side is only arranged spiral guide plate 7.In inner barrel, material slowly moves to the stove tail under spiral guide plate 7 and deadweight drive; Axially flight 6 is constantly thrown material and is raised in high-temperature gas, realizes that high-temperature gas is to the drying of material.The steam that material produces in dry run and other gas are drawn by gas outlet 10 through air-introduced machine; Dry complete material is discharged by discharging opening 12.

Claims (8)

1. the material drying device in a biological charcoal processing process, comprise base (1), screw feeding device (2), head-shield (3), blow vent, cylindrical shell (5), axial flight (6), spiral guide plate (7), transmission device (8), supporting arrangement (9), hood (11) and discharging opening (12), it is characterized in that: according to certain spacing spaced apart, axial flight (6) and spiral guide plate (7) are arranged on the inwall circumference of cylindrical shell (5), a side is furnished with spiral guide plate (7) in the gas outlet of cylindrical shell (5).

2. the material drying device in a kind of biological charcoal processing process according to claim 1 is characterized in that: axially flight (6) is comprised of the rectangular panel that the 2-8 piece is evenly arranged, and every rectangular panel vertical axial is installed on cylindrical shell (5) inwall; The helical lobed that is spiral guide plate (7) is fixed in cylindrical shell (5) inwall.

3. the material drying device in a kind of biological charcoal processing process according to claim 1 and 2, it is characterized in that: the adjacent two groups of axial flights (6) in interval are staggeredly arranged, on the axis projection face of cylindrical shell (5), the projection line of the axial flight (6) that all are adjacent angle between any two equates.

4. the material drying device in a kind of biological charcoal processing process according to claim 1 and 2, it is characterized in that: cylindrical shell (5) is shaped as cylindrical, and length-to-diameter is 5: 1-15: 1.

5. the material drying device in a kind of biological charcoal processing process according to claim 1 and 2, it is characterized in that: cylindrical shell (5) axis and horizontal plane slanted angle are the 1-5 degree.

6. the material drying device in a kind of biological charcoal processing process according to claim 1 and 2, it is characterized in that: the rotating speed of described cylindrical shell (5) is 4-10r/min.

7. the material drying device in a kind of biological charcoal processing process according to claim 2, it is characterized in that: the height of described rectangular panel (l) is the 1/4-1/3 of cylindrical shell radius (R).

8. the material drying device in a kind of biological charcoal processing process according to claim 6, it is characterized in that: the adjacent helix pitch (L) of spiral guide plate (7), the height of spiral guide plate (h), the rotating speed (v) of cylindrical shell (5) satisfies relation with material drying device feed rate (E)

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