CN210132055U

CN210132055U - High-speed water atomizer for producing superfine powder

Info

Publication number: CN210132055U
Application number: CN201920429429.0U
Authority: CN
Inventors: 孙科; 李洪; 孟晓峰; 赵轶君; 张胜权
Original assignee: JIANGSU SHUANGYU NICKEL INDUSTRY HI-TECH Co Ltd
Current assignee: JIANGSU SHUANGYU NICKEL INDUSTRY HI-TECH Co Ltd
Priority date: 2019-04-01
Filing date: 2019-04-01
Publication date: 2020-03-10
Anticipated expiration: 2029-04-01

Abstract

The utility model relates to a high-speed water atomizer for preparing superfine powder, which comprises a main body, a feed inlet, a first water outlet and a water inlet; the main part is a hollow cylinder barrel, the center department of main part is equipped with a feed inlet, one side of main part is equipped with a water inlet, be equipped with the first apopore of round on the bottom surface of main part, the slope of first apopore sets up, the pore wall and the feed shaft of first apopore become an contained angle A, the play water direction in the first apopore of round is collected in a focus. The utility model discloses bottom surface slope trompil at the atomizer for the high pressure water collects a focus point on material whereabouts route, breaks up the nickel liquid rapidly at focus point department and solidifies the cooling, obtains the superfine nickel powder of high purity high homogeneity.

Description

High-speed water atomizer for producing superfine powder

Technical Field

The utility model relates to a metal powder preparation technical field especially relates to a high-speed water atomizer of preparation superfine powder.

Background

The superfine nickel powder has unique electromagnetic property, catalytic property, large surface effect, volume effect and other performance, and may be used widely in conductive slurry, battery material, magnetic material, wave absorbing coating, special coating and other fields. In recent years, with the development of the industry in China, the demand of the superfine nickel powder is increased sharply, and meanwhile, higher requirements are put forward on the performance of the superfine nickel powder.

At present, the preparation process of the superfine nickel powder is many, and the method for industrially producing the superfine nickel powder in China mainly adopts a liquid phase reduction method and an evaporation condensation method, and the main problems are as follows: the crystallinity is not high, the particle size distribution is wide and uneven, the dispersibility and the surface property are poor, and the like, so that the requirement of high-end fields on the superfine nickel powder cannot be met. Therefore, China needs to further perfect the preparation of the superfine nickel powder and develop a new preparation technology.

The atomization-thermal decomposition method is that precursor mother liquor is made to pass through a high-speed atomizer to produce micron-sized fog drops which are brought into a high-temperature reactor by airflow to be thermally decomposed, and superfine powder materials with uniform particle sizes are obtained. Nickel powder having an average particle size of 35mm was prepared. The method is an important method for producing particles with unique properties, and is also an important method for preparing superfine nano powder, which is suitable for industrial pure production. In the early 90 s of the 20 th century, Nagashima et al, proposed in H₂／N₂Ultrasonic atomization-thermal decomposition of N in an atmosphere_i（NO₃）・6H₂O and N_iCl₂・6H₂O can obtain nickel powder. Mainly utilizes a high-energy dispersion mechanism of ultrasonic waves, and the target precursor mother liquor passes through an ultrasonic atomizer to generate micron-sized fog drops and enters a high-temperature reactor along with carrier gas to carry out thermal decomposition reaction, thereby obtaining the ultrafine powder material with uniform particle size. Wang et al found that the gas flow rate and pressure had the greatest influence on the particle size, morphology and grains of the powder through comparative studies on the concentration of the precursor mother liquor, the type of the reducing agent, the gas flow rate and the pressure when preparing the nano nickel powder by using a low-pressure atomization-pyrolysis method. Therefore, the technology and equipment of the method need to be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the aforesaid not enough, provide a high-speed water atomizer of preparation superfine powder, practice thrift the cost, obtain the superfine powder of high-purity high homogeneity.

The purpose of the utility model is realized like this:

a high-speed water atomizer for manufacturing superfine powder comprises a main body, a feed inlet, a first water outlet and a water inlet; the main part is a hollow cylinder barrel, the center department of main part is equipped with a feed inlet, one side of main part is equipped with a water inlet, be equipped with the first apopore of round on the bottom surface of main part, the slope of first apopore sets up, the pore wall and the feed shaft of first apopore become an contained angle A, the play water direction in the first apopore of round is collected in a focus.

The included angle A of the high-speed water atomizer for manufacturing the superfine powder is 25-35 degrees.

The high-speed water atomizer for preparing the superfine powder is characterized in that the aperture of a first water outlet hole is 0.5 mm-0.9 mm.

A high-speed water atomizer for manufacturing superfine powder is characterized in that a focusing point is 9-11 cm away from the bottom surface of a main body

The utility model provides a make high-speed water atomizer of superfine powder, still be equipped with round second apopore on the bottom surface of main part, the slope of second apopore sets up, the pore wall and the feeding axial of second apopore become an contained angle B, the focus point of first apopore is assembled to the play water direction in the round second apopore.

The included angle B of the high-speed water atomizer for manufacturing the superfine powder is 25-35 degrees.

The high-speed water atomizer for manufacturing the superfine powder is characterized in that the aperture of the second water outlet hole is 0.5 mm-0.9 mm.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses in the bottom surface trompil of atomizer, the drill way slope sets up for the high pressure water collects a focus point on material whereabouts route, and this focus point is located about 10 centimeters in atomizer bottom surface, utilizes the freezing point of nickel liquid, breaks up the nickel liquid rapidly in focus point department and solidifies the cooling, obtains the superfine nickel powder of high purity high homogeneity.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic cross-sectional view of the present invention.

Wherein:

main part 1, feed inlet 2, first apopore 3, second apopore 4, water inlet 5.

Detailed Description

The utility model relates to a high-speed water atomizer of preparation superfine powder, it includes main part 1, feed inlet 2, first apopore 3 and water inlet 5.

The main body 1 is a hollow cylindrical barrel, a feed inlet 2 is formed in the center of the main body 1, and the feed inlet 2 is funnel-shaped; one side of the main body 1 is provided with a water inlet 5, and the water inlet 5 is connected with a high-pressure water pump through a water pipe.

Be equipped with the first apopore of round 3 on the bottom surface of

main part

1, 3 regular arrangements of first apopore, 3 slope settings of first apopore, an contained angle A is formed to the pore wall of first apopore 3 and feeding axial, contained angle A is 25 ~35, the aperture of first apopore 3 is 0.5mm ~0.9mm, a focus is assembled to the play water direction in the first apopore 3 of round, focus is apart from main part bottom surface 9~11 centimeters.

Still be equipped with round second apopore 4 on the bottom surface of

main part

1, 4 regular arrangements of second apopore, 4 slopes of second apopore set up, an contained angle B is formed to the pore wall of second apopore 4 and feeding axial, contained angle B is 25 ~35, the aperture of second apopore 4 is 0.5mm ~0.9mm, the focus point of first apopore 3 is assembled to the play water direction in the round second apopore 4.

The working principle is as follows:

nickel net waste material melts into liquid, then passes through the utility model discloses the time, gets into perpendicularly through the feed inlet, the water inlet inserts high pressure water pump, under 10 MPa's high pressure water rushes down, and the liquid material is broken up rapidly in focus department, then solidifies the cooling, obtains the superfine nickel powder of high purity high homogeneity.

The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.

Claims

1. A high-speed water atomizer for manufacturing superfine powder is characterized in that: the water inlet device comprises a main body (1), a feed inlet (2), a first water outlet hole (3) and a water inlet (5); the main body (1) is a hollow cylindrical barrel, a feed inlet (2) is arranged at the center of the main body (1), a water inlet (5) is arranged at one side of the main body (1),

be equipped with the first apopore of round (3) on the bottom surface of main part (1), first apopore (3) slope sets up, the pore wall and the feeding axial of first apopore (3) become an contained angle A, a focus is assembled to the play water direction in the first apopore of round (3).

2. The high-speed water atomizer for producing ultrafine powder according to claim 1, wherein: the included angle A is 25-35 degrees.

3. The high-speed water atomizer for producing ultrafine powder according to claim 1, wherein: the aperture of the first water outlet hole (3) is 0.5 mm-0.9 mm.

4. The high-speed water atomizer for producing ultrafine powder according to claim 1, wherein: the distance between the focus point and the bottom surface of the main body is 9-11 centimeters.

5. The high-speed water atomizer for producing ultrafine powder according to claim 1, wherein: still be equipped with round second apopore (4) on the bottom surface of main part (1), second apopore (4) slope sets up, the pore wall and the feeding axial of second apopore (4) become an contained angle B, the focus point of collecting in first apopore (3) is assembled to the play water direction in round second apopore (4).

6. The high-speed water atomizer for producing ultrafine powder according to claim 5, wherein: the included angle B is 25-35 degrees.

7. The high-speed water atomizer for producing ultrafine powder according to claim 5, wherein: the aperture of the second water outlet hole (4) is 0.5 mm-0.9 mm.