95results about How to "Disperse quickly and evenly" patented technology

A device for applying a cleaning or polishing solution to a surface and wiping the solution over the surface includes a rotatable valve that allows for the dispensing of the solution through either a nozzle that sprays the solution in front of a disposable sponge-like pad secured to the device, or directly into the pad for application to the surface by the pad. The device also includes a rearward opening that releasably receives a container of the solution to be dispensed from the device. When the container is empty, the container is removed and replaced in order to allow the device to be used in a generally continuous manner for cleaning and polishing the surface. The disposable pad connected to the device may also include a cleaning surface capable of picking up dust, dirt and other debris in addition to applying the polishing and cleaning solutions to the surface.

A horizontal novel centrifugal concentrator comprises a frame (8), an outer cover (1), a rotating drum (2), a variable frequency reducing motor (4) connected with the rotating shaft of the rotating drum through a coupler (3), a flushing system (5) arranged in the outer cover and connected with an external water supply system, an ore distributor system (6) below the outer cover, an ore receiving bucket (7) below the outer cover, a feeding system (9) arranged outside the outer cover and communicated with the rotating drum, wherein the rotating drum comprises the rotating shaft, a horn-shaped rotating disc and a circular truncated cone-shaped rotary drum; the rotating shaft is sleeved with the rotating disc; the rotating disc is sleeved with the rotary drum; the large end surface of the rotary drum is connected with the outer edge of the rotating disc; the tilt angle of the opening in the internal face of the rotary drum is 2-6 degrees; the flushing system comprises a water inlet pipe with a pneumatic ball valve and flushing nozzles in the rotary drum; the ore distributor system comprises a cylinder, an oscillating shaft, a connecting arm and an ore distribution hopper; one end of the connecting arm is connected with the push rod of the cylinder and the other end of the connecting arm is connected with the oscillating shaft; a lifting arm at the top of the ore distribution hopper is connected with the oscillating shaft; the feeding system comprises an ore distribution box and at least two feeding nozzles; a pneumatic knife gate valve is arranged at the ore inlet of the ore distribution box; the feeding nozzles are mounted at the tail ends of feeding pipes of the ore distribution box and face to the internal face of the rotary drum. The horizontal type novel centrifugal concentrator has a simple structure and a good concentration effect, and is easy to control and maintain.

The nanometer microcrystal cellulose powder is surface modified nanometer microcrystal cellulose with added hydrophilic colloid in the amount of 5-150 wt% of nanometer microcrystal cellulose and has grain size of 6.3-100 nanometers. During its preparation, hydrophilic colloid is dispersed homogeneously into water dispersed medium of surface modified nanometer microcrystal cellulose and the mixture is then dried and crushed. The nanometer microcrystal cellulose is easy to be water dispersed to form colloid, which is homogeneous and high in gluing strength and has the small size of microcrystal cellulose maintained, so that it has wide and unique application foreground in food production, medicine, papermaking, textile, new material preparation and other fields.

The present invention provides a method of preparing polymethylene-polyphenyl-polyamine (briefly referred to as polyamine, DAM), in which a high gravity rotating bed is used as the mixing reactor of formaldehyde and aniline hydrochloride, the mixing solution of aniline hydrochloride and circulation solution and the formaldehyde are fed into the high gravity rotating bed reactor proportionally to carry out mixing and condensation reaction under a condition of a very high gravity; the materials leaving the high gravity rotating bed reactor is introduced into a stirred vessel to proceed with the pre-condensation reaction and obtain a condensation solution; and the process steps of heating, molecular rearrangement, neutralization, water washing and purification, etc. are completed to obtain the refined DAM. With the method according to the present invention, the main by-products is obviously reduced in the condensation process, the phenomenon of deposit attaching to the inner walls of circulation pipes and heat exchanger and blockage are prevented in the condensation process, the impurity content is low in the refined DAM, and the subsequent product MDI has a lighter color, the product quality is stable and may be improved to a certain extent.