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An ultrasonic spray drying nozzle

An ultrasonic and drying technology, applied in the direction of spraying devices, spraying devices, liquid spraying devices, etc., can solve the problems that the ultrasonic nozzle cannot monitor the temperature of the piezoelectric vibrator inside the nozzle, the high temperature will be damaged, and the length of the ultrasonic nozzle is limited.

Active Publication Date: 2016-08-24
SIANSONIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large thickness of the furnace wall of the drying furnace, the length of the ultrasonic nozzle of this technology is limited. If a part of the nozzle is placed outside the drying furnace, the spray outlet of the nozzle cannot penetrate into the drying furnace.
In addition, the ultrasonic nozzle of this technology cannot monitor the temperature of the environment where the piezoelectric vibrator inside the nozzle is located, and there is a risk of being damaged by high temperature for applications in high temperature environments such as spray drying

Method used

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  • An ultrasonic spray drying nozzle
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  • An ultrasonic spray drying nozzle

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Effect test

Embodiment 1

[0024] like figure 1 and figure 2 As shown, the present invention discloses an ultrasonic spray drying nozzle, which includes a transducer 1, a housing 2, a sealing ring 3, a sealing ring 4, a tube joint 5, a sealing ring 6, a long tube 7, a thermocouple 8, Thermocouple leads 9 and electrical leads 10. The casing 2 includes a nozzle cap 21 , a front casing 22 , a rear casing 23 , an extension casing 24 , and a rear casing cover 25 , which are sequentially connected to each other. The extension housing 24 is divided into an extension housing front end 24a and an extension housing rear end 24b. The diameter of the extension housing rear end 24b is larger than that of the extension housing front end 24a. The rear housing cover 25 is fixed on the extension housing rear end 24b. like image 3 As shown, the tail end rod 11f of the transducer 1 is covered with a sealing ring 4 and is in close contact with the rear housing 23, and the middle end rod 11c has a ring of protruding ch...

Embodiment 2

[0029] In Embodiment 1, there is an annular cover plate 22a in the cavity of the front housing 22, and there are several small holes 22b on the annular cover plate 22a. The ring cover can also be Figure 7 In the shown structure, the small hole 22b is removed, and the annular cover plate 22a is a closed cover plate without holes. like Figure 8 As shown, when working, the air outlet port 25e is open, and a certain amount of compressed gas is passed into the air inlet port 25b. Since the ring cover plate 22a is in close contact with the middle end rod 11c through the sealing ring 3, the compressed gas will flow in the extension housing 24 It forms a circulation with the inside of the rear housing 23 and flows out from the air outlet port 25e. This compressed air is used to cool the transducer 1 .

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Abstract

An ultrasonic spray drying nozzle, which includes a transducer, a casing, an electrical connector, a liquid inlet port and an air inlet port, and the transducer includes a transducer rear cover, a piezoelectric vibrator group, an electrode solder piece, and a transducer The electrodes of the piezoelectric vibrator group are led out through the electrode welding pieces and connected to the electrical connectors, and the electrical connectors are fixed on the rear cover of the housing. The shell of the ultrasonic spray drying nozzle includes a front casing, a rear casing, an extension casing, a rear casing cover and a nozzle cap, and the rear casing cover, the extension casing, the rear casing, the front casing and the nozzle cap are connected to each other in sequence. There are electrical connectors, temperature sensor connectors, liquid inlet ports, air inlet ports and air outlet ports on the rear shell cover respectively. There is an annular cover plate in the cavity of the front housing which is in close contact with the front cover plate of the transducer through a sealing ring. The annular cover plate has several small holes or is a closed cover plate without holes.

Description

Technical field [0001] The invention relates to an ultrasonic spray device, in particular to a spray head used in a spray drying furnace, and belongs to the field of liquid atomization. Background technique [0002] With the development of nano-material technology, the demand for nano-scale ultra-fine powder is increasing, such as: titanium dioxide, platinum, silver and other metals and metal oxide powders. Spray drying and spray pyrolysis to prepare ultrafine powder is a relatively popular preparation method. The traditional spray drying nozzle uses a two-fluid spray gun. Since the two-fluid spray gun is based on high-pressure gas and liquid to generate high kinetic energy for atomization, the particle size of the atomized particles is large and the particle uniformity is poor, so that the dried solid particles The uniformity is low, and the large particles are difficult to reach the nanometer or submicron level. [0003] Ultrasonic atomization method (patent number: 2013...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05B1/02B05B17/06
CPCB05B17/0607B05B17/0653B05B17/063
Inventor 咸威
Owner SIANSONIC TECH CO LTD