CN202570027U

CN202570027U - Mixed flow-type vertical stirrer

Info

Publication number: CN202570027U
Application number: CN201220161476XU
Authority: CN
Inventors: 戚加友; 严洪生
Original assignee: HANGZHOU XIAOSHAN MEITE LIGHTING INDUSTRY MACHINERY CO LTD
Current assignee: HANGZHOU XIAOSHAN MEITE LIGHTING INDUSTRY MACHINERY CO LTD
Priority date: 2012-04-16
Filing date: 2012-04-16
Publication date: 2012-12-05
Anticipated expiration: 2022-04-16

Abstract

The utility model relates to a stirrer, in particular to a mixed flow-type vertical stirrer, which is mainly used in the stirring occasions in the processes of mixing, blending, dispersing, dissolving, suspending, mass transfer, heat transfer, reaction, extraction and the like of various chemicals or materials in the light papermaking industry, and is also suitable for similar occasions in the chemical industry and the like. The mixed flow-type vertical stirrer comprises a material tank, wherein a stirring shaft is inserted into the material tank; a speed reducer is arranged at the top of the stirring shaft and used for driving the stirring shaft to rotate through a motor; a mixed flow-type paddle is arranged in the middle of the stirring shaft through a wheel hub; the oblique edge is formed outside the mixed flow-type paddle; the mixed flow-type paddle comprises a lower bent vane, a middle straight vane and an upper bent vane; the upper bent vane is arranged at the upper part of the middle straight vane; and the lower bent vane is arranged at the lower part of the upper bent vane. The mixed flow-type vertical stirrer is simple in structure, efficient and energy-saving, wide in application range, and high in running stability.

Description

Mixed flow type vertical stirrer

Technical field

The utility model patent relates to a kind of agitator; Relate in particular to a kind of mixed flow type vertical stirrer; The technologies such as mixing, mediation, dispersion, dissolving, suspension, mass transfer, heat transfer, reaction, extraction that are mainly used in various chemicals in the light industry paper industry or material stir occasion, also are applicable to similar applications such as chemical industry.

Background technology

The technology agitator that uses in the light industry paper industry at present is commonly axial flow type and radial type vertical stirrer, and wherein the discharge opeing direction of axial flow type vertical stirrer is parallel with shaft, mainly produces axial flow during running; But hoop is mobile poor; Shearing force is little, and material is prone to wall built-up, and manufacture difficulty is big; The discharge opeing direction of radial type vertical stirrer is vertical with shaft, mainly produce hoop stream during running, but axial flow property is poor, and internal circulating load is little, the material free settling; Therefore, their flow regime is more single, all can not satisfy fully circulation and modern crafts stirring needs such as mix.

The utility model content

The utility model mainly is to solve the deficiency that exists in the prior art; Provide a kind of simple in structure; And have axially and the multidirectional divergence of hoop, the resultant effect with enhancing convection circulation and DIFFUSION IN TURBULENCE reaches circulation fully and mixes, energy-efficient etc. purpose; Adopt removable and adjustable angle formula mixed flow type blade structure, the convenient manufacturing and installation, the scope of application is wideer; Sliding bearing structure is adopted in the shaft extension bottom, improves the mixed flow type vertical stirrer of operation stability.

The above-mentioned technical problem of the utility model mainly is able to solve through following technical proposals:

A kind of mixed flow type vertical stirrer; Comprise hopper, be plugged with shaft in the described hopper, the top of described shaft is provided with reductor; Described reductor rotates through the driven by motor shaft; The middle part of described shaft is provided with mixed flow type blade through wheel hub, and the outside of described mixed flow type blade is provided with bevel edge, and described mixed flow type blade is by bent blades, stage casing prismatic blade and last bent blades are formed down; Straight-vaned top, described stage casing is provided with bent blades, and described bottom of going up bent blades is provided with down bent blades.

As preferably; Described bent blades, stage casing prismatic blade and last bent blades down are integrated; The straight-vaned laying angle β in described stage casing is 30 °～45 °, and between described stage casing prismatic blade and last bent blades, be respectively equipped with 150 °～165 ° bending angle α between stage casing prismatic blade and following bent blades, the angle of inclination of described bevel edge is 15 °～30 °; Described mixed flow type blade evenly distributes along wheel hub, and the quantity of described mixed flow type blade is 2～6 lobes.

As preferably, described stage casing prismatic blade is provided with wedge shape angle modulation pad, and the solid impeller on described mixed flow type blade and the wheel hub fixes.

As preferably; The bottom of described hopper is provided with the base plate that diagonally distributes, and described base plate is provided with plain bearing housing, is with axle sleeve outside the bottom of described shaft; Be provided with sliding bearing in the described plain bearing housing; Described axle sleeve is located in the sliding bearing, and the bottom of described shaft is through sleeve nut and axle sleeve crimping mutually, and described sleeve nut and shaft are provided with stop washer.

As preferably; Described reductor fixes through the connecting rack of bottom and the top of hopper; Be provided with bearing between the top of described connecting rack and hopper; Described shaft and reductor are fixedly connected through pin coupler, are provided with rolling bearing pedestal in the described connecting rack, and described rolling bearing pedestal and shaft socket-connect.

Mixed flow type blade mainly is made up of bevel edge, following bent blades, stage casing prismatic blade and last bent blades, and mixed flow type blade preferably adopts two bendables and detachable structure, stirs usefulness so that make with installation, raising technology; Wherein the outside of mixed flow type blade is the bevel edge that has 15 °～30 ° of oblique angles, flows so that produce differential at the bevel edge place, increase it with the hopper inwall between axial and hoop convection effects; The straight-vaned laying angle β in stage casing is 30 °～45 °, between its root and solid impeller, can regulate this laying angle β through the wedge shape angle modulation pad that increase has different gradients, to strengthen the scope of application, satisfies different processes and stirs needs; Bending angle α between stage casing prismatic blade and last bent blades and following bent blades and the stage casing prismatic blade is respectively 150 °～165 °; To increase the structural strength of mixed flow type blade; Simultaneously can form multidirectional shunting; Promptly through descending the different angles of laying of bent blades, stage casing prismatic blade and last bent blades; Make liquid-liquid or liquid-solid material produce three layers of different axial and hoop mixed flow field, strengthen the resultant effect of convection circulation and DIFFUSION IN TURBULENCE, improve effects such as multi-faceted mixing, mediation, dispersion, dissolving, suspension; The quantity of mixed flow type blade is 2～6 lobes, and mixed flow type blade connects solid on the solid impeller of wheel hub, with easy disassembly and maintenance through bolt; Gu then by the certain periphery middle position of even angle solid welding at wheel hub of laying, its quantity is identical with mixed flow type blade for impeller; The bottom of shaft is provided with axle sleeve, in order to the running wearing and tearing of protection shaft; Through the shaft sleeve key anti-rotation, axle sleeve is through stop washer and sleeve nut locking between shaft and the axle sleeve; The outer cover of axle sleeve is equipped with sliding bearing, and sliding bearing is fixed on the plain bearing housing, and the footing of plain bearing housing then is fixed on the bottom central position of hopper, to reduce shaft extension end amount of deflection, improves and stirs critical speed of shaft, increases the operation stability of agitator; According to technology stirring needs, the middle part or the middle and lower part of shaft are fixed with wheel hub, pass through wheel hub key anti-rotation between wheel hub and the shaft; The top of shaft is set with back-up ring and rolling bearing pedestal, and rolling bearing pedestal then is packed in the connecting rack, and rolling bearing pedestal is mainly in order to the supporting shaft; Shaft and reductor are through the transmission of pin coupler direct connection; The bottom attaching of connecting rack has bearing, and bearing is fixed on the top of hopper; The top of connecting rack is fixed with reductor, and the top of reductor then is fixed with motor, stirs in order to slow down.

Operation principle:

Agitator drives the rotation of mixed flow type blade under certain power and rotating speed; Material sucks from the oblique upper of mixed flow type blade; Pass through bevel edge, the hydraulic action of a plurality of different directions of bent blades, stage casing prismatic blade and last bent blades down respectively; After converting the kinetic energy of mixed flow type blade to part pressure energy and part kinetic energy simultaneously,, and flow the oblique upper of the mixed flow type blade that backflows again behind the bottom of delivering to hopper and the sidewall by different axially discharging from the oblique below of mixed flow type blade more than three layers with the hoop mixed flow; So constantly repeatedly, technology whipping process such as the mixing of completion material, mediation, dispersion, dissolving, suspension, mass transfer, heat transfer, reaction, extraction.

The utility model provides mixed flow type vertical stirrer, and simple in structure, energy-efficient, the scope of application is wide, improves operation stability.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of mixed flow type blade in the utility model;

Fig. 3 is the sectional structure sketch map of A-A among Fig. 1;

Fig. 4 is the sectional structure sketch map of B-B among Fig. 1.

The specific embodiment

Pass through embodiment below, and combine accompanying drawing, do further bright specifically the technical scheme of the utility model.

Embodiment 1: like Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, a kind of mixed flow type vertical stirrer comprises hopper 1; Be plugged with shaft 2 in the described hopper 1; The top of described shaft 2 is provided with reductor 3, and described reductor 3 drives shaft 2 through motor 4 and rotates, and the middle part of described shaft 2 is provided with mixed flow type blade 6 through wheel hub 5; The outside of described mixed flow type blade 6 is provided with bevel edge 7; Described mixed flow type blade 6 is made up of following bent blades 8, stage casing prismatic blade 9 and last bent blades 10, and the top of described stage casing prismatic blade 9 is provided with bent blades 10, and described bottom of going up bent blades 10 is provided with down bent blades 8.Described bent blades 8, stage casing prismatic blade 9 and last bent blades 10 down are integrated; The laying angle β of described stage casing prismatic blade 9 is 30 °～45 °; 10 of described stage casing prismatic blade 9 and last bent blades, stage casing

prismatic blade

9 and 8 of following bent blades are respectively equipped with 150 °～165 ° bending angle α; The angle of inclination of described bevel edge 7 is 15 °～30 °, and described mixed flow type blade 6 evenly distributes along wheel hub 5, and the quantity of described mixed flow type blade 6 is 2～6 lobes.Described stage casing prismatic blade 9 is provided with wedge shape angle modulation pad 11, and the solid impeller 12 on described mixed flow type blade 6 and the wheel hub 5 fixes.The bottom of described hopper 1 is provided with the base plate 13 that diagonally distributes; Described base plate 13 is provided with plain bearing housing 14; Be with axle sleeve 15 outside the bottom of described shaft 2, be provided with sliding bearing 16 in the described plain bearing housing 14, described axle sleeve 15 is located in the sliding bearing 16; The bottom of described shaft 2 is through sleeve nut 17 and axle sleeve 15 crimping mutually, and described sleeve nut 17 is provided with stop washer 18 with shaft 2.Described reductor 3 fixes through the connecting rack 19 of bottom and the top of hopper 1; Be provided with bearing 20 between the top of described connecting rack 19 and hopper 1; Described shaft 2 is fixedly connected through pin coupler 21 with reductor 3; Be provided with rolling bearing pedestal 22 in the described connecting rack 19, described rolling bearing pedestal 22 socket-connects with shaft 2.

Claims

1. mixed flow type vertical stirrer; Comprise hopper (1); Be plugged with shaft (2) in the described hopper (1); The top of described shaft (2) is provided with reductor (3), and described reductor (3) drives shaft (2) through motor (4) and rotates, and it is characterized in that: the middle part of described shaft (2) is provided with mixed flow type blade (6) through wheel hub (5); The outside of described mixed flow type blade (6) is provided with bevel edge (7); Described mixed flow type blade (6) is made up of following bent blades (8), stage casing prismatic blade (9) and last bent blades (10), and the top of described stage casing prismatic blade (9) is provided with bent blades (10), and described bottom of going up bent blades (10) is provided with down bent blades (8).

2. mixed flow type vertical stirrer according to claim 1; It is characterized in that: described bent blades (8), stage casing prismatic blade (9) and last bent blades (10) down are integrated; The laying angle β of described stage casing prismatic blade (9) is 30 °～45 °; Between described stage casing prismatic blade (9) and last bent blades (10), be respectively equipped with 150 °～165 ° bending angle α between stage casing prismatic blade (9) and following bent blades (8); The angle of inclination of described bevel edge (7) is 15 °～30 °, and described mixed flow type blade (6) evenly distributes along wheel hub (5), and the quantity of described mixed flow type blade (6) is 2～6 lobes.

3. mixed flow type vertical stirrer according to claim 1 and 2 is characterized in that: described stage casing prismatic blade (9) is provided with wedge shape angle modulation pad (11), and the solid impeller (12) on described mixed flow type blade (6) and the wheel hub (5) fixes.

4. mixed flow type vertical stirrer according to claim 1 and 2; It is characterized in that: the bottom of described hopper (1) is provided with the base plate (13) that diagonally distributes; Described base plate (13) is provided with plain bearing housing (14); Be with axle sleeve (15) outside the bottom of described shaft (2), be provided with sliding bearing (16) in the described plain bearing housing (14), described axle sleeve (15) is located in the sliding bearing (16); The bottom of described shaft (2) is through sleeve nut (17) and axle sleeve (15) crimping mutually, and described sleeve nut (17) is provided with stop washer (18) with shaft (2).

5. mixed flow type vertical stirrer according to claim 1 and 2; It is characterized in that: described reductor (3) fixes through the connecting rack (19) of bottom and the top of hopper (1); Be provided with bearing (20) between the top of described connecting rack (19) and hopper (1); Described shaft (2) is fixedly connected through pin coupler (21) with reductor (3); Be provided with rolling bearing pedestal (22) in the described connecting rack (19), described rolling bearing pedestal (22) socket-connects with shaft (2).