CN2168649Y

CN2168649Y - Super-fine swirling liquid crusher

Info

Publication number: CN2168649Y
Application number: CN 93226418
Authority: CN
Inventors: 嵇储寅
Original assignee: East China University of Science and Technology
Current assignee: East China University of Science and Technology
Priority date: 1993-10-13
Filing date: 1993-10-13
Publication date: 1994-06-15
Anticipated expiration: 2003-10-13

Abstract

The utility model discloses a super-fine swirling liquid crusher which is mainly composed of components of a casing, a cavity and a nozzle cap. A chamber which is composed of the cavity and the nozzle cap is the swirling liquid crushing zone; a cavitation crushing zone is composed of a cylindrical passage which is arranged on the nozzle cap; a collision crushing zone is composed of the gap between the outlet end of a channel of small holes and the casing; when the pressure fluid flow which contains materials enters the crusher after the three stages of crushing from a tangential inlet, the average diameter of the materials can be crushed to below one micrometer, and the solid content amount in the fluid flow can reach 30-50%(wt).

Description

Super-fine swirling liquid crusher

Gu the utility model relates to a kind of liquid/liquid, liquid/material grinding device.

At present, known liquid is cut device, mainly is made up of a spinning liquid chamber, and it utilizes one to have hydraulic fluid stream to inject in the chamber, the spin of generation liquid, in same sagittal plane, produce velocity gradient, make between adjacent liquid layer and shear mutually, reach the purpose of pulverizing, but it is applicable to the pulverizing of liquid/liquid system, its minimum grinding particle size only can reach 2 microns, Gu when in the face of liquid/system, and just powerless when requiring liquid/liquid system to do further ultra-fine grinding.

The purpose of this utility model is to overcome the above-mentioned limitation on the prior art, when hydraulic fluid flows by the utility model device, can be with liquid/liquid, Gu contained material is done further ultra-fine grinding in liquid/system, can be by the average diameter of comminuting matter less than 1 micron.

Design of the present utility model is such:

The hydraulic fluid that has that will contain the material of needs pulverizing flows, inject in the cavity by a tangential inlet, liquid stream is done spin at a high speed in cavity, do spin with the velocity gradient between the fluid layer and pulverize (one-level pulverizing), the liquid stream that contains material then, enter respectively again in the cylindrical little hole path on the spray cap of being located at the cavity two ends, when spraying with pattern, in aperture, make air pocket and pulverize (secondary pulverizing), when the liquid stream that contains material at last sprays with pattern from aperture again with nearly wall generation strong collision, form collision and pulverize (three grades of pulverizing), by material behind above-mentioned three grades of crushing process by ultra-fine grinding.

The utility model also is achieved in that

The main part of this novel spinning liquid grinder adopts superior alloy steel to make, and material after heat treatment its hardness reaches more than the HRC62.Said " main part " mainly is made of housing, cavity, all parts of spray cap.When contain material have the hydraulic fluid stream tangential inlet on being arranged at cavity to inject the cavity time, liquid is done spin at a high speed in cavity, with the velocity gradient between the fluid layer, material is sheared pulverizing, promptly finish spin and pulverize (one-level pulverizing), liquid stream enters the cylindrical little hole path that is arranged on the spray cap (two spray caps are located at the cavity two ends respectively) more respectively then, and with the ejection of the form of jet, because the pressure at this place is lower than the saturated vapor pressure of the liquid under this condition, therefore form air pocket, when liquid instantaneous with pattern ejection, bubble is crumbled and fall suddenly, and the very big energy that discharges forms air pocket and pulverizes (secondary pulverizing), and is last, the jet that from aperture, sprays again with the nearly wall generation strong collision that is located on the housing, form collision and pulverize (three grades of pulverizing).Material has finally reached the purpose of ultra-fine grinding by behind aforesaid three grades of crushing process.

Further illustrate content of the present utility model below in conjunction with accompanying drawing.

Fig. 1 is the cross-section front view of the said spinning liquid grinder of the utility model.

Fig. 2 is the cross sectional plan view of the said spinning liquid grinder of the utility model.

Wherein:

1---be the housing of spinning liquid grinder,

2---be the cavity of spinning liquid grinder,

3---be spray cap, it has two, is fixed in the two ends (affixed with welding manner usually) of cavity respectively,

4---be the support of spinning liquid grinder,

A---the chamber that is made of cavity 2 and spray cap 3 is that the district is pulverized in spin,

B---by the cylindrical little hole path that is arranged on the spray cap, for air pocket is pulverized the district,

Gap between C---little hole path and the housing 1.Constitute collision and pulverize the district,

D---the district center part is pulverized in spin, heart fluid one side spin at a high speed hereinto, and one shunts towards two ends.

The spin direction signal of E---fluid,

F---the tangential inlet of hydraulic fluid stream is arranged,

G---finished product go out head piece.

By Fig. 1, Fig. 2 as seen:

Said ultra-fine its main part of spinning liquid grinder of the utility model is made of housing 1, cavity 2 and two spray caps 3.Two spray caps 3 are distinguished affixed (being generally welding) two ends at cavity, form spin by cavity 1 and two spray caps 3 and pulverize district A, form air pocket and pulverize district B by being arranged on the spray cap 3 cylindrical aperture passage, the port of export by the cylindrical little hole path on the spray cap 3 constitutes collision pulverizing district C with the nearly wall that is arranged on the housing 1, cavity 2 is installed in the housing 1, and affixed with it (being generally welding).The main part of whole ultra-fine spinning liquid grinder is a high tension apparatus, can bear 5～120 atmospheric pressure, and it is installed on the support 4.

When the pressure flow body that contains material was injected in the chamber by tangential inlet F, liquid stream was done spin at a high speed in chamber, material is done spin pulverize (one-level pulverizing); The material of pulverizing through one-level enters in the cylindrical little hole path that is located on the spray cap 3 with liquid stream again, material is made air pocket pulverize (secondary pulverizing); Nearly wall generation strong collision on the instantaneous and housing 1 that the material that secondary is pulverized sprays from aperture with liquid stream again forms collision and pulverizes (three grades of pulverizing), and the material after three grades of pulverizing goes out head piece with liquid stream from finished product and discharges.When being liquid if any material contained in the hydraulic fluid, the emulsion of discharge is finished product usually, if during solid, the emulsion of discharge can be spray dried to the solid superfine powder as required.

Spinning liquid grinder according to above-mentioned design is made proves (having Shanghai test center examining report to be certificate) through practical application:

(1) milk of pressure is arranged by behind the said spinning liquid grinder of the utility model, can make lipochondrion wherein be crushed to average diameter less than 0.9 micron.

(2) hydraulic fluid that has that contains kaolin particle flows by behind the said spinning liquid grinder of the utility model, can make kaolin particle be crushed to average diameter less than 0.8 micron.

Therefore the utility model spinning liquid grinder can successfully be realized liquid/liquid, Gu the ultra-fine grinding of liquid/system, and solid content thereby is with a wide range of applications up to 30～50%(Wt) occasion in the particularly suitable liquid stream.

Claims

1, a kind of ultra-fine spinning liquid grinder, it is characterized in that said its main part of spinning liquid grinder is mainly by housing 1, cavity 2, spray cap 3 all parts constitute, and be installed on the support 4, cavity 2 is installed and is fixed in the housing 1, two spray caps 3 are installed the two ends that are fixed in cavity 2 respectively, on cavity 2, be provided with the tangential inlet F of hydraulic fluid stream, what housing 1 was provided with finished product goes out head piece G, have cylindrical aperture channel B on the spray cap 3, the chamber A that is made of cavity 2 and spray cap 3 is that the district is pulverized in spin, constitute air pocket by the cylindrical aperture channel B on the spray cap 3 and pulverize the district, constitute collision by the clearance C between on the port of export of aperture channel B and the housing and pulverize and distinguish.

2, ultra-fine spinning liquid grinder as claimed in claim 1 is characterized in that the material of main part is made by superior alloy steel, and material hardness HRC after heat treatment is greater than 62.

3, as claim 1,2 described ultra-fine spinning liquid grinders, it is characterized in that main part is a high tension apparatus, can be subjected to 5～120 atmospheric pressure.