CN202343190U

CN202343190U - Top-bottom double--tirrer spiral ribbon type reaction kettle

Info

Publication number: CN202343190U
Application number: CN2011202905787U
Authority: CN
Inventors: 程娟
Original assignee: 许洪军
Priority date: 2011-08-11
Filing date: 2011-08-11
Publication date: 2012-07-25
Anticipated expiration: 2021-08-11

Abstract

The utility model discloses a top-bottom double-stirrer spiral ribbon type reaction kettle, which is suitable for the field of chemical equipment, especially for the reaction and synthesis field of chemical products, particularly high-viscosity chemical media such as polyurethane, organosilicone and silicone oil. The top-bottom double-stirrer spiral ribbon type reaction kettle is main characterized in that: firstly, a spiral ribbon type stirrer is arranged on a reaction kettle by using the traditional method to serve as a main stirring device; a bottom-free cage-shaped form is formed in the center of the spiral ribbon type stirrer; a bottom stirrer is arranged at the bottom of the reaction kettle and is provided with a bottom wall scraping paddle and a top paddle; and the top paddle at the top is arranged into the cage shape at the lower end of a main spiral ribbon stirrer to reduce a stirring dead zone.

Description

A kind of two up and down agitator helical-ribbon type agitated reactor of putting

Technical field:

A kind ofly twoly up and down put agitator helical-ribbon type agitated reactor, be applicable to the chemical equipment field, be particularly useful for the high viscosity chemical mediator, like the synthetic field of chemical products such as polyurethane, organosilicon, silicone oil reaction.

Background technology:

Need the occasion of high viscosity reaction medium processing at some, in the chemical engineering industry like polyurethane, organosilicon, silicone oil raw material, because reactant viscosity is high; Even normal temperature is issued to millions of centipoises, and various agitator types commonly used often can not finely play stirring action, and reactant often is bonded on the stirrer paddle when stirring; " embrace " firmly shaft, bunch up, various additives, catalyst or solid packing just can not finely add; Even make the reactant separated into two parts, and a part is bulk and rotates with the axis, and a part of absorption is on agitated reactor still drain pan wall; Reactant feed fails to receive abundant stirring, and reaction not exclusively causes product quality problem.

The utility model content:

For solving the problem of traditional stirring system intractable high-viscosity material; A kind of two up and down agitator helical-ribbon type agitated reactor of putting is proposed at present; It mainly realizes theing contents are as follows: following equipment at first is set, comprises: agitated reactor, main helical ribbon agitator, stir ribbon, main shaft, end agitator, end stirrer shaft, the end put scrape the wall blade, on put blade, reducing motor; Simultaneously, a helix(ribbon type) agitator is set on said agitated reactor, said helix(ribbon type) agitator is conventional the setting, and its axle is from up to down inserted agitated reactor, as main agitating device; Said helix(ribbon type) agitator is the center with the shaft, establishes the spirality metal bar as stirring ribbon; Stir ribbon and be provided with along agitated reactor still wall, the shaft of helix(ribbon type) agitator with stir ribbon than the tradition setting, shorten respectively or narrow; To vacate the centre; Form the form of not having bottom cage shape, said shaft length is shorter by 1/3rd than stirring the ribbon expanded range at least, and said stirring ribbon width is at least less than 1/4th of agitated reactor diameter.

When main agitator is set, end agitator is set at the bottom of the agitated reactor still, agitator of the said end is unconventional setting; Its bottom-up agitated reactor of inserting, agitator of the said end is provided with the blade of two kinds of difference in functionalitys at least, is respectively; Put and scrape the wall blade at the end, on put blade.Put and scrape the wall blade and be located on the end stirrer shaft at the said end, is close to agitated reactor still diapire, is vertical batten shape blade radially, and its surfaces of revolution should be identical with agitated reactor still diapire shape.Put blade on said and be located on the end stirrer shaft, put and scrape on the wall blade at the end, is propeller shape; On put propeller blade and can establish one or more groups; Put blade topmost and should insert within the cage shape shape of main helical ribbon agitator lower end, stir the dead band to reduce, putting propeller blade on said can be opposite with main agitator direction of rotation or rotating speed is different; To solve material and the main agitator separation problem of uniting, make material reach sufficient mixing effect.

The advantage of the utility model is, solved the high viscosity reaction mass and in agitated reactor, stirred insufficiently, has the problem in dead band.

Description of drawings:

Accompanying drawing 1 is the utility model structural representation;

Wherein: (1) agitated reactor, (2) main helical ribbon agitator, ribbon is stirred in (3), (4) main shaft, (5) end agitator, (6) end stirrer shaft, put and scrape the wall blade at (7) end, puts blade on (8), (9) reducing motor.

The specific embodiment:

Shown in accompanying drawing 1, at first, a helix(ribbon type) agitator (2) is set on agitated reactor (1) by conventional method, said helix(ribbon type) agitator (2) is conventional the setting, its axle (4) is from up to down inserted agitated reactor (1), as main agitating device; Said helix(ribbon type) agitator (2); With shaft (4) is the center, establishes the spirality metal bar as stirring ribbon (3), stirs ribbon (3) and is provided with along agitated reactor (1) still wall; The shaft (4) of helix(ribbon type) agitator (2) and stirring ribbon (3) are than the tradition setting; Shorten respectively or narrow,, form the form of not having bottom cage shape to vacate the centre; Said shaft (4) length is shorter by 1/3rd than stirring ribbon (3) expanded range at least, and said stirring ribbon width is at least less than 1/4th of agitated reactor (1) diameter.

When main agitator (2) is set; At the bottom of agitated reactor (1) still, end agitator (5) is set; Agitator of the said end (5) is unconventional setting; Its axle (6) bottom-up agitated reactor (1) of inserting, agitator of the said end (5) is provided with the blade of two kinds of difference in functionalitys at least, is respectively: the end put scrape wall blade (7), on put blade (8).Put and scrape wall blade (7) and be located on the end stirrer shaft (6) at the said end, is close to agitated reactor (1) still diapire, is vertical batten shape blade radially, and its surfaces of revolution should be identical with agitated reactor (1) still diapire shape.Put blade (8) on said and also be located on the end stirrer shaft (6), put and scrape on the wall blade (7) at the end, is propeller shape; On put propeller blade (8) and can establish one or more groups; Put blade (8) topmost and should insert within the cage shape shape of main helical ribbon agitator (2) lower end, stir the dead band to reduce, putting propeller blade (8) on said can be opposite with main agitator (2) direction of rotation or rotating speed is different; To solve material and main agitator (2) separation problem of uniting, make material reach sufficient mixing effect.

Claims

1. two up and down agitator helical-ribbon type agitated reactors of putting; Comprise: agitated reactor, main helical ribbon agitator, stir ribbon, main shaft, end agitator, end stirrer shaft, the end put scrape the wall blade, on put blade, reducing motor; It is characterized in that: a helix(ribbon type) agitator is set on the agitated reactor; The shaft length of said helix(ribbon type) agitator is at least than stirring ribbon expanded range short 1/3rd; Said stirring ribbon width forms the form of not having bottom cage shape at least less than 1/4th of agitated reactor diameter.

2. according to the said a kind of two up and down agitator helical-ribbon type agitated reactors of putting of claim 1; It is characterized in that: end agitator is set at the bottom of the agitated reactor still; The bottom-up agitated reactor of inserting of end stirrer shaft; Agitator of the said end is provided with the blade of two kinds of difference in functionalitys at least, is respectively: the end put scrape the wall blade, on put blade.

3. according to the said a kind of two up and down agitator helical-ribbon type agitated reactors of putting of claim 1; It is characterized in that: put and scrape the wall blade and be located on the end stirrer shaft at the said end; Be close to agitated reactor still diapire, be radially vertical batten shape blade, its surfaces of revolution should be identical with agitated reactor still diapire shape.

4. according to the said a kind of two up and down agitator helical-ribbon type agitated reactors of putting of claim 1; It is characterized in that: put blade on said and be located on the end stirrer shaft; Put and scrape on the wall blade at the end; Be propeller shape, on put propeller blade and can establish one or more groups, put blade on topmost should insert within the cage shape shape of main helical ribbon agitator lower end.