CN102489197A

CN102489197A - Sectional double-shaft stirring and humidifying device

Info

Publication number: CN102489197A
Application number: CN2011104136346A
Authority: CN
Inventors: 赵琴霞; 方培根; 李卫忠; 王少权; 应可可; 吴斌; 段意军
Original assignee: ZHEJIANG FEIDA DESULFURATION ENGINEERING Co Ltd; Zhejiang Feida Environmental Science and Technology Co Ltd
Current assignee: ZHEJIANG FEIDA DESULFURATION ENGINEERING Co Ltd; Zhejiang Feida Environmental Science and Technology Co Ltd
Priority date: 2011-12-13
Filing date: 2011-12-13
Publication date: 2012-06-13
Anticipated expiration: 2031-12-13
Also published as: CN102489197B

Abstract

The invention discloses a sectional double-shaft stirring and humidifying device. The device comprises a frame, wherein a stirring and humidifying area and a fluidizing area are arranged in the frame; a feed port and a discharge port are formed on the stirring and humidifying area; a water spraying device is arranged on the top of the stirring and humidifying area; a first rotating shaft and a second rotating shaft which are driven by a driving device, are arranged parallelly and rotate reversely are arranged in the stirring and humidifying area; a first paddle group is arranged on the first rotating shaft and comprises a plurality of paddle units I; a second paddle group corresponding to the first paddle group is arranged on the second rotating shaft and comprises a plurality of paddle units II; and each paddle unit I and the corresponding paddle unit II are arranged in the same radial plane, and the initial phase difference of the two paddle units is an initial angle. The device has the advantages that: a plurality of local mixing areas are axially formed by materials, so that the materials in each area are quickly backmixed and radially stirred to be quickly mixed and humidified; and blades on the shafts are arranged symmetrically, reversely and spirally, so that axial thrust and driving resistance are reduced, and a bearing and a sealing structure are difficult to damage.

Description

The subregion twin shaft stirs humidifying device

Technical field

The present invention relates to the subregion twin shaft and stir humidifying device.

Background technology

The mixing plant that in flue gas desulfurization, is used at present ash, water humidification by mixing of gas generally is made up of rabbling mechanism and drive unit two parts.Rabbling mechanism comprises that its main body is positioned at two horizontal spindles that mix groove; Fixing a plurality of blade groups that are provided with at interval on the main shaft; Each blade group blade face has the helical angle with respect to main-shaft axis deflection; Blade group on two main shafts radially staggers each other, and promptly the blade group on the main shaft stretches between two groups of adjacent blades of another main shaft.Feed end at mixing channel is provided with charging aperture, water inlet.Discharge end at mixing channel is provided with discharging opening.Power set comprise motor, the transfer gear of being with decelerator, and power set drive two main shaft reverse rotations.

Material generally forces rotation to be delivered to the other end at 30～80 rev/mins rotating speed through the blade group, and the material amount of agitation is little, causes stirring inhomogeneous; The blade group hand of spiral is consistent simultaneously; Make axial thrust big, it is big to cause driving resistance, and bearing, hermetically-sealed construction destroy easily.

Summary of the invention

The object of the present invention is to provide the subregion twin shaft to stir humidifying device; It is little effectively to solve existing twin shaft stirring humidifying device material amount of agitation; Cause stirring inhomogeneous, the blade group hand of spiral is consistent simultaneously, makes axial thrust big; It is big to cause driving resistance, the problem that bearing, hermetically-sealed construction destroy easily.

In order to solve the problems of the technologies described above; The present invention realizes through following technical scheme: the subregion twin shaft stirs humidifying device, comprises frame, is provided with in the said frame to stir humidification zone and fluidization regions; Have charging aperture and discharging opening on the said stirring humidification zone; The top of said stirring humidification zone is provided with water injector, is provided with first rotating shaft that laterally arranges and second rotating shaft by drive device drives in the said stirring humidification zone, said first rotating shaft and the second rotating shaft direction of rotation; Said first rotating shaft is provided with the first blade group; Said second rotating shaft is provided with and the corresponding second blade group of the first blade group, and the said first blade group comprises several blade unit I, and the said second blade group comprises several blade unit II; Said each blade unit I is arranged in the same sagittal plane with corresponding blade unit II, and said blade unit I differs initial angle with the initial phase of corresponding blade unit II.

Preferably, said blade unit I or blade unit II include at least three group blades, and it is 180 ° of vane group numbers divided by the blade unit that said blade unit I differs initial angle with the initial phase of corresponding blade unit II; The blade of two groups of blade unit evenly inserts between two blades of the other side each other, evenly stirs.

Preferably, said blade unit I and blade unit II are: blade is that the blade unit blade between monolithic, the two ends is a biplate in the blade unit at rotating shaft two ends; Form a plurality of relatively independent local stirring region between adjacent two groups of paddle sheets in two rotating shafts, can further effectively material be stirred.

Preferably, said blade is among the blade unit I and blade unit II of monolithic, and the angle of blade and shaft axis is 65～75 degree; The best reduction structural drag and the leaf angle of axial thrust.

Preferably; Said blade is that two blades are V-shaped among the blade unit I and blade unit II of biplate, and said two blades are about blade unit center line symmetry; Wherein the angle of a slice blade and rotating shaft is 65～75 degree, and the angle of said wherein a slice blade and rotating shaft is 65～75 degree; The best reduction structural drag and the leaf angle of axial thrust

Preferably, the length of said every blade is the distance between axles of 0.7～0.9 times of two rotating shaft, and the breadth length ratio of said every blade is 0.2～0.4; Can reach the length of blade and the breadth length ratio of optimum efficiency.

Preferably, separate through fluidisation cloth between said fluidization regions and the stirring humidification zone, be connected with on the said fluidisation cloth towards the outside ash releasing tube of frame, the bottom of said frame is provided with the fluidized wind import that communicates with fluidization regions; Through increasing the fluidized wind system in the agitating device bottom, make material in agitator, present the fluidization effect, effectively reduce the resistance of structure, through opening ash discharging hole, empty material during stoppage in transit, prevent the solid accumulation caking, influence starts.

Compared with prior art, advantage of the present invention is: through the blade design, make material axially form a plurality of local Mixed Zones; Rapid back-mixing of material and radially stirring in each zone; And under fluidized state through the mode discharge of overflow, accomplish material rapid mixing humidification, an axle blade symmetrical reverse screw arrangement reduces axial thrust; Reduce to drive resistance, bearing, hermetically-sealed construction are difficult for being destroyed.

Description of drawings

Fig. 1 stirs the structural representation of humidifying device for subregion of the present invention twin shaft;

Fig. 2 is the cutaway view of A-A among Fig. 1;

Fig. 3 is a B-B cutaway view among Fig. 1;

Fig. 4 turns over a structural representation after the initial angle for twin shaft among Fig. 3.

The specific embodiment

Consult Fig. 1 to Fig. 4 stirs humidifying device for subregion of the present invention twin shaft embodiment; The subregion twin shaft stirs humidifying device, comprises frame 7, is provided with in the said frame 7 to stir humidification zone 6 and fluidization regions 5; Have charging aperture 1 and discharging opening 4 on the said stirring humidification zone 6; The top of said stirring humidification zone 6 is provided with water injector 9, is provided with first rotating shaft 10 that laterally arranges and second rotating shaft 11 that are driven by drive unit 18 in the said stirring humidification zone 6, said first rotating shaft 10 and second rotating shaft, 11 direction of rotation; Said first rotating shaft 10 is provided with the first blade group; Said second rotating shaft 11 is provided with and the corresponding second blade group of the first blade group, and the said first blade group comprises several blade unit I 12, and the said second blade group comprises several blade unit II13; Said each blade unit I 12 is arranged in the same sagittal plane with corresponding blade unit II13; Said blade unit I 12 or blade unit II13 include four groups of blades 2, and it is 180 ° of 2 groups of numbers of blade divided by the blade unit that said blade unit I 12 differs initial angle alpha with the initial phase of corresponding blade unit II13, so the phase difference initial angle alpha is 45 degree; Said blade unit I 12 and blade unit II13 are: be biplate at the blade unit at rotating shaft two ends blade 2 for the blade unit blade between monolithic, the two ends 2; Among the blade unit I 12 and blade unit II13 that said blade 2 is a monolithic, blade 2 is 65～75 degree with the angle β of shaft axis, among the blade unit I 12 and blade unit II13 that said blade 2 is a biplate; Two blades 2 are V-shaped; Said two blades 2 are about blade unit center line symmetry, and wherein a slice blade 2 is 65～75 degree with the angle β of rotating shaft, and the length of said every blade 2 is the distance between axles of 0.7～0.9 times of two rotating shaft; The breadth length ratio of said every blade is 0.2～0.4; Separate through fluidisation cloth 16 between said fluidization regions and the stirring humidification zone 6, be connected with on the said fluidisation cloth 16 towards the ash releasing tube 15 of frame 7 outsides, the bottom of said frame 7 is provided with the fluidized wind import 3 that communicates with fluidization regions.

If each blade unit comprises three groups of blades 2, to differ initial angle alpha with the initial phase of corresponding blade unit II13 be 60 degree to blade unit I 12 so.

Said drive unit 18 is that motor directly drives first rotating shaft, 10 rotations; The other end of first rotating shaft 10 drives second rotating shaft 11 through gear drive 14 and rotates, and above-mentioned blade design makes material axially form a plurality of local Mixed Zones; Rapid back-mixing of material and radially stirring in each zone; And under fluidized state through the mode discharge of overflow, accomplish material rapid mixing humidification, axle blade 2 symmetrical reverse screw arrangement reduce axial thrust; Reduce to drive resistance, bearing, hermetically-sealed construction are difficult for being destroyed.

The above is merely specific embodiment of the present invention, but technical characterictic of the present invention is not limited thereto, and any those skilled in the art is in the field of the invention, and the variation of being done or modify all is encompassed among the claim of the present invention.

Claims

1. the subregion twin shaft stirs humidifying device; Comprise frame (7); Be provided with in the said frame (7) and stir humidification zone (6) and fluidization regions (5), have charging aperture (1) and discharging opening (4) on the said stirring humidification zone (6), the top of said stirring humidification zone (6) is provided with water injector (9); It is characterized in that: be provided with first rotating shaft (10) that laterally arranges and second rotating shaft (11) that drive by drive unit (18) in the said stirring humidification zone (6); Said first rotating shaft (10) and second rotating shaft (11) direction of rotation, said first rotating shaft (10) is provided with the first blade group, and said second rotating shaft (11) is provided with and the corresponding second blade group of the first blade group; The said first blade group comprises several blade unit I (12); The said second blade group comprises several blade unit II (13), and said each blade unit I (12) is arranged in the same sagittal plane with corresponding blade unit II (13), and said blade unit I (12) differs initial angle (α) with the initial phase of corresponding blade unit II (13).

2. subregion as claimed in claim 1 twin shaft stirs humidifying device; It is characterized in that: said blade unit I (12) or blade unit II (13) include at least three group blades (2), and it is 180 ° of blades divided by the blade unit (2) group number that said blade unit I (12) differs initial angle (α) with the initial phase of corresponding blade unit II (13).

3. according to claim 1 or claim 2 subregion twin shaft stirs humidifying device, and it is characterized in that: said blade unit I (12) and blade unit II (13) are: at the blade unit at rotating shaft two ends blade (2) is that blade unit blade (2) between monolithic, the two ends is a biplate.

4. subregion as claimed in claim 3 twin shaft stirs humidifying device, it is characterized in that: said blade (2) is among the blade unit I (12) of monolithic and the blade unit II (13), and blade (2) is 65～75 degree with the angle (β) of shaft axis.

5. subregion as claimed in claim 3 twin shaft stirs humidifying device; It is characterized in that: said blade (2) is among the blade unit I (12) of biplate and the blade unit II (13); Two blades (2) are V-shaped; Said two blades (2) are about blade unit center line symmetry, and wherein a slice blade (2) is 65～75 degree with the angle (β) of rotating shaft.

6. subregion as claimed in claim 3 twin shaft stirs humidifying device, and it is characterized in that: the length of said every blade (2) is the distance between axles of 0.7～0.9 times of two rotating shaft, and the breadth length ratio of said every blade is 0.2～0.4.

7. according to claim 1 or claim 2 subregion twin shaft stirs humidifying device; It is characterized in that: separate through fluidisation cloth (16) between said fluidization regions and the stirring humidification zone (6); Be connected with on the said fluidisation cloth (16) towards the outside ash releasing tube (15) of frame (7), the bottom of said frame (7) is provided with the fluidized wind import (3) that communicates with fluidization regions.