CN1119613C

CN1119613C - Aeration type rotary drying machine

Info

Publication number: CN1119613C
Application number: CN 96194573
Authority: CN
Inventors: 大和幸雄
Original assignee: Yamato Sanko Manufacturing Co Ltd
Current assignee: Yamato Sanko Manufacturing Co Ltd
Priority date: 1996-04-08
Filing date: 1996-04-08
Publication date: 2003-08-27
Anticipated expiration: 2016-04-08
Also published as: CN1187240A

Abstract

The present invention relates to an improved ventilation type rotary drying machine. The ventilation type rotary drying machine blows air in a material processing layer in a cylinder or blows air to the surface of the material layer, and the air axially penetrates through the inside of a rotary cylinder (10) from an outlet box (12) and flows in an air pipe (21) on the inlet box (11) side. The air pipe (21) is composed of a plurality of main pipes (22, 23, 24) which are axially connected with each other in the cylinder (10), the main pipes orderly become thinner from the inlet side to the outlet side. Since the diameter of the main pipe (24) which is the most adjacent to the inlet side is the smallest, the diameter of an opening (32) of a baffle (31) on the inlet side of the cylinder (10) can also be small; thereby, the width of the opening (32) in the radial direction on the inlet side can be increased so as to prevent the input raw material from spilling from the opening (32) on the inlet side. Since the diameter of the main pipe (22) which passes through an opening (34) of a baffle (33) on the outlet side is the largest, the gap of the opening (34) on the outlet side is reduced; since the baffle (33) on the outlet side is composed of louver boards (35) which are alternately arranged in the circumferential direction according to needs, the air not only can be discharged from the gap of the opening (34), but also can be discharged between every two louver boards (35); therefore, the present invention can increase air displacement, and is more than twice the capability of the common rotary drying machine with the cylinder of the same volume.

Description

Aeration type rotary drying machine

Technical field:

The present invention relates to improved aeration type rotary drying machine, this improved aeration type rotary drying machine is to insert vertically to be responsible in rotor, and branch out a plurality of arms from this person in charge, and the opening that makes the pipe end of this arm is processing raw material layer inside in cylinder or the surface of handling raw material layer relatively, to add hot-air and send into the person in charge, spray from the pipe end of arm, add hot-air and the effect that contacts of handling raw material thereby increase.

Technical background:

Known aeration type rotary drying machine in the past has No. 4656759 disclosed aeration type rotary drying machines of U.S.'s special permission communique.This aeration type rotary drying machine has: inlet tank and EXPORT CARTON, between this inlet and EXPORT CARTON, can rotate freely and the cylinder of sealed support, rotation drives the means of this cylinder, the raw material that is located at inlet tank drops into means, the person in charge of the same diameter that connects inlet tank and in cylinder, give prominence to vertically, supply with the hot air source that this person in charge adds hot-air, be responsible for a plurality of arms of the processing raw material layer split shed in cylinder from this along radial direction branch and pipe end, be arranged on the exhaust means of EXPORT CARTON and handle raw material discharge means.Two end faces of rotor are made of the discoideus dividing plate of hollow, raw material is dropped into the chute of means and add the hot-air person in charge and put into cylinder from the opening of entrance side dividing plate.The raw material of exhaust and processing is discharged to EXPORT CARTON from the opening of outlet side dividing plate.

The initial raw material that drops into contains a lot of moisture.If the radial direction width of the board of the depth ratio entrance side hollow plectane of the radial direction of the raw material layer in the cylinder is big, then raw material can overflow in inlet tank.Therefore, the raw material input amount of unit interval is that board radial direction width by the entrance side dividing plate is determined.Because ventilating drier in the past is to supply with the mode that adds hot-air from entrance side, so be responsible for and the raw material chute in order to pass the thick hot-air that adds, the opening of entrance side dividing plate will have bigger diameter.The radial direction width that adapts with the raw material input amount that increases and increase the board of dividing plate is limited.

The board that the raw material of handling is crossed outlet side hollow plectane moves to EXPORT CARTON, and air is discharged from the opening of outlet side dividing plate in the cylinder.In order to increase the disposal ability of drying machine, must make in the cylinder capacity of air big, but being aperture area by the outlet side dividing plate, its capacity limited.In order to increase capacity, if increase the diameter of outlet side dividing plate opening and reduce the radial direction width of dividing plate, then raw material is crossed the outlet side dividing plate easily, and the retention of raw material reduces, and the processing of raw material is insufficient.In addition, when in the raw material piece being arranged, raw material is difficult to cross the outlet side dividing plate, and the danger of breaking down is arranged in the discharge of raw material.

The drying machine of this mode to add hot-air and fully contacts with raw material in order to make, the front end of arm is extended to the inside or the raw material layer near surface of raw material layer, add hot-air from this pipe end injection, but the angle position, center of the raw material laminar flow that produces in the cylinder is proterties and the rotary speed according to raw material to be changed, because drying machine in the past can not be regulated the radiation angle of arm, so pipe end may not always be positioned at the processing position of optimum state.

The invention provides the aeration type rotary drying machine that solves above-mentioned shortcoming, one of its purpose is: reduce the internal diameter of entrance side dividing plate, make it possible to increase the input amount of raw material.

Two of the purpose of aeration type rotary drying machine provided by the invention is: even do not increase the internal diameter of outlet side dividing plate, also can increase the capacity of air in the pipe.

Three of the purpose of aeration type rotary drying machine provided by the invention is: even there is piece also can to discharge on fault-free ground in the raw material.

Four of the purpose of aeration type rotary drying machine provided by the invention is: not air be blown into be responsible for make same diameter but the upside that air is responsible for do more slightly, downside does it thinly, and regulates air capacity according to the amount of being blown into of arm.

Disclosure of an invention:

Aeration type rotary drying machine of the present invention has: inlet tank, EXPORT CARTON, at this inlet and EXPORT CARTON can rotate freely and by the cylinder of airtight support, rotation drives the means of this cylinder, the raw material that is located at inlet tank drops into means, be responsible for by the air in the cylinder vertically, supply with the air-supply arrangement of aforementioned person in charge's air, be responsible for along radial direction branch and pipe end the inner or a plurality of arms of its surface opening relatively of the processing raw material layer in cylinder from this, be located at the exhaust means of EXPORT CARTON, handle raw material and discharge means, in this aeration type rotary drying machine, the aforementioned person in charge is inserted in the rotor from the EXPORT CARTON side, the aforementioned person in charge is formed by a plurality of persons in charge of vertical connection, and it is thick that the aforementioned person in charge's diameter is set at the EXPORT CARTON side, and the inlet tank side is thin.Thus, can reasonably distribute ejection air capacity from arm.And, because the diameter that the air of the opening of the inlet tank side dividing plate by rotor is responsible for diminishes, so the internal diameter of the opening of entrance side dividing plate is also corresponding to be reduced, and can increase the radial direction width of the hollow board of dividing plate.As a result, can increase the raw material retention of cylinder, thereby increase the input amount of raw material.

Because except air is responsible for, also by the circular open of entrance side dividing plate, therefore if necessary, the axle center that air can be responsible for is provided with from the center of circular open is eccentric, further reduces the diameter of circular open for the chute of raw material feeding device or conveyer belt.

By flange a plurality of persons in charge are linked mutually, preferably the bolt hole of a side or both sides' ring flange is made ovalisation, can regulate relative angle position, mutual axle center.So just can regulate from being responsible for along the center angle of the arm of radial direction branch.Therefore and since the branch direction of the arm of setting be with the pipe that forms according to raw material in the center of raw material layer adapt, so the central authorities that can always make the pipe end of arm be positioned at raw material layer handle with optimum state.

And in aforementioned rotary drier of the present invention, the hollow circular plate portion of the EXPORT CARTON side dividing plate of cylinder is to be formed by circumferential a plurality of shutter boards arranged side by side, its Cylindorical rod that makes each shutter board to the outer end innerly relatively on the cylinder direction of rotation, turn forward.Because making, the shutter board that tilts handles the raw material refluence, so the processing raw material in the cylinder axially not by the gap between shutter board and the shutter board, discharge to EXPORT CARTON but cross shutter board, and the air in the cylinder is axially freely flowing out to EXPORT CARTON by the gap between shutter board and the shutter board.Therefore, even the space of opening reduces because the opening of the dividing plate of the EXPORT CARTON side of cylinder is responsible for by thick air, also can discharge the interior air of cylinder of the capacity that requires.

When handling the raw material of big bulk or sheet, near the cylinder inner circumferential surface shutter board is installed the scraper plate of a plurality of spoonfuls of shapes, and is responsible for the hang plate that the outlet dividing plate opening of putting into cylinder is installed at EXPORT CARTON or air.Scraper plate will be handled raw material from the cylinder inner bottom part and copy and get up and it is fallen from top, the processing raw material that hang plate is accepted to fall from scraper plate, discharge to EXPORT CARTON.

The simple declaration of accompanying drawing:

Fig. 1 is the side view of the outward appearance of aeration type rotary drying machine of the present invention.

Fig. 2 is the sectional view of major part of the drying machine of Fig. 1.

Fig. 3 is the III-III alignment view of Fig. 2.

Fig. 4 is the figure suitable with Fig. 3 of other embodiment.

Fig. 5 is the V-V alignment view of Fig. 2.

Fig. 6 is the VI-VI alignment view of Fig. 2.

Fig. 7 is the sectional view of outlet side of the cylinder of other embodiment.

Fig. 8 is the VIII-VIII alignment view of Fig. 7.

Fig. 9 is the figure suitable with Fig. 6 of other embodiment.

Figure 10 is the X-X alignment view of Fig. 9.

Figure 11 is the sectional elevation of the cylinder of other embodiment.

Figure 12 is the sectional elevation of switching of the lid of Figure 11.Implement optimal morphology of the present invention:

Illustrate in greater detail the present invention with reference to accompanying drawing.

Fig. 1 is the overall appearance of expression aeration type rotary drying machine of the present invention.The airtight insertion inlet tank 11 in the two ends of cylinder 10 also can rotate freely with EXPORT CARTON 12.Inlet tank 11 is installed on the base 13 independently of one another with EXPORT CARTON 12.In inlet tank 11 raw material feeding device 14 is installed, is provided with the outlet 15 and exhaust outlet 16 of discharging the raw material of handling at EXPORT CARTON 12.Exhaust outlet 16 links with dust exhaust apparatus 44.External peripheral surface at cylinder 10 cooperates one group of outer rim gear 17 and 2 rims 18, and outer rim gear 17 is meshed with the gear of rotating driving device 19 on being placed on base 13.2 rims 18 bear roller 20 by the rim that is placed on base 13 and are supported.Rim bears roller 20 support cylinder 10, rotating driving device 19 with fixed speed make cylinder 10 rotation.The air hose 21 that prolongs from air-supply arrangement 45 leads to the back side of EXPORT CARTON 12.This air hose is axially connecting cylinder and the inlet tank side that arrives.Have when heat drying, on air-supply arrangement 45, set up heater, and the situation of when cooling, not setting up heater.

As shown in Figure 2, the air hose 21 in the cylinder 10 is to be made of 22,23,24 of several persons in charge that link in turn with one heart vertically.In the person in charge's 24 of the supported front of inlet tank 11 sides diameter minimum, in the person in charge's 22 of the supported rear end side of EXPORT CARTON 12 sides diameter maximum.Be to link between general person in charge by flange 25,26, but also can solder joint.Arm 27 is from be responsible for 22,23,24 raw materials that enter along radial direction branch in the cylinder 10.Near the pipe end of the inner circumferential surface arm 27 of cylinder 10 inside or surface opening at raw material layer.Entrance side dividing plate 31 at cylinder 10 is provided with the chute 28 of raw material feeding device 14 or conveyer belt and the opening 32 of being responsible for 24 circles that communicate is set.At the circular open 34 of the outlet side dividing plate 33 of cylinder 10 by the large diameter person in charge 22.

As shown in Figure 3, compare, because the person in charge of entrance side 24 diameter is very little, so even the size of the external diameter of cylinder 10 and chute 28 or conveyer belt is identical, the diameter of opening 32 is little than in the past also with drying machine in the past.Therefore, the radial direction width of hollow clapboard 31 big than in the past can prevent effectively that raw material from overflowing to the inlet tank side from opening 32.

As shown in Figure 4, make the center of the circular open 32 of the person in charge's 24 of close entrance side axle center and dividing plate 31 that skew be arranged, when the chute 28 that makes the raw material feeding device is consistent with the center of the 24 profile centers that lump together of person in charge and circular open 32, then the diameter of opening 32 reaches minimum, and the radial direction width of dividing plate 31 reaches maximum.Can more effectively prevent raw material overflowing to inlet tank 11.

As shown in Figure 5, the angle position from the arm 27 relative axle center of being responsible for 22 branches distributes by number.When cylinder 10 rotated with the direction shown in the arrow, the relative horizontal line of the flow surface of raw material tilted.Because different material is when carrying out drying, cylinder inner surface is different with the friction of raw material, the flow surface angle change of raw material.Horizontal relatively angle of inclination is big but can reduce gradually when initial.Because the angle position of arm 27 distributes by number, so air and raw material even contact from the pipe end of arm 27 sprays help high efficiency drying.

As shown in Figure 6, are the slotted holes that prolong at circumferencial direction because be responsible for the bolt hole 37 of 23 flange 26, so can in the length range of the circumferencial direction of bolt hole 37, regulate the angle position in the relative axle center of the person in charge that links.Therefore, when the angle position in the relative axle center of feed stream in cylinder changes along with drying, can adapt with feed stream and change and be responsible for and the angle position in the relative axle center of arm, can regulate so that the relative feed stream of the pipe end of arm always keeps best position.

As Fig. 7 and shown in Figure 8, the hollow circular dividing plate 33 of the outlet side of cylinder 10 is to be made of a plurality of shutter boards 35 of along the circumferential direction arranging at certain intervals.Each shutter board 35 its Cylindorical rod to outer distolateral distolaterally in relatively on the cylinder direction of rotation, turn forward.Because raw material can not discharged vertically from the gap of shutter board 35, but be pressed towards the radial direction inboard, so shown in Fig. 7 arrow A, raw material is crossed shutter board 35 and discharged to EXPORT CARTON 12 from opening 34 in the Lower Half of dividing plate 33.But shown in arrow B and C, air is not only discharged but also from discharge between the shutter board 35 of dividing plate 33 and the shutter board 35 from opening 34.Therefore, though the opening of dividing plate 33 by the large diameter person in charge 22, the resistance of air is also little and can carry out exhaust.Like this, the outlet side dividing plate 33 that is formed by shutter board 35 has played the effect of dividing plate for raw material, and does not have the effect of dividing plate fully for air.

Fig. 9 and drying machine shown in Figure 10 are employed drying machines when sneaking into the raw material of bulk or sheet in raw material.Such raw material is difficult to cross the outlet side dividing plate 33 of cylinder 10.Therefore, near the inboard of outlet side dividing plate 33, spoonful shape or box-like scraper plate 36 are housed, and the supporting plate 39 that tilts is installed on the gripper shoe 38 that is installed in EXPORT CARTON 12 in EXPORT CARTON at the inner circumferential surface of cylinder 10.Also this supporting plate can be directly installed on air is responsible for.The raw material of the bulk that overstocks of the bottom of cylinder 10 or sheet is copied along the scraper plate 36 of arrow D direction rotation with cylinder 10 and to be got up, fall on the supporting plate 39 copying the raw material of getting up at upper position.The raw material of falling on the supporting plate 39 slides supporting plate 39 to EXPORT CARTON 12 discharges.Therefore also can discharge the processing raw materials such as bulk that to cross dividing plate 33 in fault-free ground.

Embodiment shown in Figure 11 is a lid to be opened/closed 40 of being responsible for mounting strap hinge on 22 at air, opens to cover 40 and can remove the dust that it accumulates above.In addition, arm 27 is to be formed by root 41 and leading section 42, by flange 43 this root 41 and leading section 42 is linked.So just can replace leading section 42 simply.Figure 12 represents is to open that air is responsible for the lid 40 of 22 sides and state that the dust that accumulates falls.

Utilize possibility on the industry:

Because the treating capacity of the volume ratio of the rotor of aeration type rotary drying machine of the present invention is many, with Rotary drier is in the past compared, and has the ability more than 2 times, and the thermal efficiency is also high, so suitable Be used for mineral products thing, the paddy such as the chemical articles such as fertilizer, resin, coal, coke, sand, wet ore deposit, slag The heating of the crops such as thing, granulated sugar, drying and cooling.

Claims

1. aeration type rotary drying machine, it comprises: an inlet tank (11), one EXPORT CARTON (12), one has the airtight described inlet tank and the interior rotatable cylinder (10) of EXPORT CARTON of rotatably being fitted in of its arrival end and the port of export, one is connected to the raw material feeding device (14) of described inlet tank, be located at the outlet (15) and the exhaust outlet (16) of described EXPORT CARTON respectively, one extends to the air hose (21) of described inlet tank vertically from described EXPORT CARTON by described cylinder, a plurality of inner surface arms (27) from downward-sloping bifurcated of described air hose and the close described cylinder of its pipe end, one be formed with in the middle of circular open (32) and the inlet dividing plate (31) and that is fixed on the inner surface of described cylinder at its port of export be formed with circular open (34) and be fixed on the outlet dividing plate (33) of the inner surface of described cylinder at its arrival end, it is characterized in that, described air hose comprises a plurality of persons in charge (22 that vertically successively connect, 23,24), the person in charge's of each close described inlet tank diameter is littler than diameter of the person in charge of another close described EXPORT CARTON, and described arm (27) is branch and entering in the raw material in the described cylinder (10) radially, and extends along different radial direction from described air hose.

2. aeration type rotary drying machine as claimed in claim 1 is characterized in that, links the adjacent person in charge (22,23,24) by flange (25,26), and the bolt hole of at least one square flange of described flange (37) is the slotted hole that prolongs along circumferentially.

3. aeration type rotary drying machine as claimed in claim 1 is characterized in that, make circular open (32) by entrance side dividing plate (31) by the person in charge (24) off-centre of entrance side, thereby reduce the internal diameter of described circular open.

4. aeration type rotary drying machine as claimed in claim 1 is characterized in that, makes the angle position in the adjacent described relatively person in charge's of a plurality of arms (27) axle center that the configuration of skew ground be arranged.

5. aeration type rotary drying machine as claimed in claim 1 is characterized in that, each arm (27) is made of root (41) and leading section (42), and described root is connected on the described person in charge, and by joint (43) described leading section is connected on the described root.

6. aeration type rotary drying machine as claimed in claim 1 is characterized in that, at least one side of being responsible for the first half of (22,23,24) is provided with the lid that can open and close (40) of equipment hinge.

7. aeration type rotary drying machine as claimed in claim 1, it is characterized in that, the outlet side dividing plate (33) of cylinder 10 is by forming along the tabular shutter board of circumferentially arranging at certain intervals (35), described shutter board Cylindorical rod to outer distolateral distolaterally in relatively on the direction of rotation of cylinder (10), turn forward flow backwards so that arrive the raw material of described outlet side dividing plate.

8. aeration type rotary drying machine as claimed in claim 1, it is characterized in that, inner circumferential surface at the cylinder (10) of the inboard of outlet side dividing plate (33) is provided with a plurality of spoonfuls of shapes or box-like scraper plate (36), be responsible for (24) upward installation supporting plate (39) at EXPORT CARTON (12) or air, this supporting plate (39) is accepted described scraper plate and is copied the raw material of getting up and falling from the top from the bottom of cylinder (10), and with it to EXPORT CARTON (12) landing.