Field of use:
The invention relates to the wet medium of fine chemical industry and building chemical industry, in particular to a non stator pipeline emulsifying machine used for emulsifying wet medium.
Background technology:
At present, the machinery of wet medium emulsification in the fields of fine chemical and architectural chemical industry at home and abroad is still the traditional combination structure of the rotor and stator, that is, the stator is fixed, the rotor rotates at high speed in a single way, and the medium is fined, homogenized and emulsified by the shear force formed by the high-speed rotation between the rotor and the stator. The structure will block the further improvement of the fine emulsification, ultrafine and homogenization of the moist medium, because:
One of the main parameters of the emulsification technology is the rotor speed (PI D / n/60), which is proportional to the rotational speed n of the rotor, but the speed n is limited by the motor frequency 50HZ (except for the special high-frequency motor), and the n is within 3000 rpm, so the speed of the rotor is limited.
2. High frequency motor and frequency converter are used to improve the line speed, which can achieve the purpose of high emulsification, but its expensive cost and cost limit its application value in industrial production.
3. Even if the rotor speed is improved, the technical problems such as the auxiliary shaft material, the rotor dynamic and static balance, the rolling bearing and the mechanism seal are still difficult to solve, and the cost is very high.
Technical principles:
The technical problem to be solved by the non stator pipeline type emulsion machine is to improve the emulsification, super refining and homogenization performance of emulsified media on the basis of the existing technology, and provide a new type of high speed and efficient pipeline emulsifier.
The technical solution of the emulsifying machine is as follows:
The utility model relates to a non stator pipeline emulsifying machine for emulsifying wet medium, which is characterized by comprising:
1. A working chamber is provided with an emulsion medium outlet and a connecting flange.
The working cavity is divided into the working cavity and the working outer cavity, the working cavity is connected with the medium inlet and the external cavity interconnects with the emulsion outlet. The two rotor can divide the working cavity into the working cavity and the external cavity.
The rotor is fixed with a hollow spindle. The hollow spindle is installed through the outer bearing and bearing seat. The hollow spindle is connected by the inner bearing and the medium inlet; the other end of the hollow spindle is equipped with a pulley, and the motor is driven by its main pulley, transmission belt and the pulley.
The other rotor is fixed with another hollow spindle. The hollow spindle is installed through the outer bearing and bearing seat. The hollow spindle is connected by the inner bearing and the medium inlet; the other end of the hollow spindle is equipped with a pulley, and the motor is driven by its main pulley, transfer belt and the pulley. Relationship;
The rotor and rotor are provided with multi sleeve sleeve shear ring which can be set with each other.
A liquid seal is arranged between the medium inlet tube and the working chamber and the hollow spindle.
A mechanical seal device and a sealing cavity are also arranged between the two ends of the working chamber and the bearing base.
On the drive of the motor, the hollow spindle drives the two rotors to rotate at high speed in the opposite direction.
The shear holes are circular holes, long waist shaped holes, eccentric circular holes, or eccentric long waist shaped holes.
The port of the two medium inlet is also connected with the inlet of the connecting flange and the inlet of the medium to speed the flow velocity of the wet medium and improve the working efficiency. Especially for the high viscosity wet medium, it is very necessary to increase the infusion pump.
The technical effect of the emulsifier:
1. On the basis of the original manufacturing technology of rotating shaft material, rotor dynamic and static balance, rolling bearing and mechanical seal, the speed of the shear line can be doubled and the cost increases less, but the performance of emulsification, refinement and homogenization of the emulsified medium is remarkable. Improve.
2. Adopting the feeding mode of two rotors on both ends of the medium is not only beneficial to the increase of the feeding speed, but also to the mixing of various medium, which is beneficial to the stable high homogenization of the medium of various proportions.
3. In order to make the wet medium enter the working chamber in the center of the axis to achieve more sufficient emulsification, the invention specially sets a medium pipe in the center of the hollow spindle to fix the medium pipe in the center of the hollow spindle, and the middle bearings are placed in the middle, which ensures that the hollow spindle can make the medium from the source in the high speed rotation. The source continues to enter the inner cavity of the work. In order to prevent the medium from returning to the space between the hollow spindle and the medium inlet, the invention is equipped with a fluid sealing device to ensure that the medium is fully emulsified in the working inner cavity.
4, especially when the port of the medium inlet is also provided with a infusion pump, the invention of the non stator pipeline type emulsifier is more suitable for the emulsification of the high viscosity wet medium.
5, in short, the emulsifying machine has the characteristics of low cost, general manufacturing technology, high yield and good emulsifying property.