4results about How to "Improve uniform distribution" patented technology

This invention discloses a dust removal device, a hot dirty gas deacidification and dust removal system, and a method based on a granular bed. Existing granular bed filters suffer from defects such as numerous dead zones in filter media replacement. The dust removal device of this invention includes a coarse filter tower, a fine filter tower, a filter media tower, a filter cartridge, and a filter media recovery unit. The dust removal system includes a granular bed-based dust removal device, a dust separation device, a filter media silo, and an ejector. In this invention, the filter media tower, fine filter tower, and coarse filter tower are embedded and coaxially arranged, forming an inlet chamber for hot dirty gas and an outlet chamber for hot clean gas. A filter cartridge with an upper cone is concentrically arranged inside the fine filter tower, and the filter cartridge is constructed with a Johnson mesh to form a diffusion chamber. The central filter media is diverted through the filter cartridge to increase its travel, and undergoes two stages of filtration with the hot dirty gas through cross-flow and counter-flow, greatly increasing the dust holding capacity of the central filter media. Furthermore, the entire filter bed moves smoothly downwards, effectively solving the problem of easy fluidization of the bed material in counter-flow granular beds and improving the deacidification and dust removal efficiency.

The invention belongs to the technical field of gas bearings, and relates to a gas bearing structure for a linear compressor of a Stirling cryocooler, the gas bearing structure comprises a first row of throttling holes formed in a piston and a third row of throttling holes formed in an air cylinder, and the third row of throttling holes are communicated with a compression cavity of the air cylinder through a bypass thin channel formed in the air cylinder; the first row of throttling holes sprays air to the inner wall of the air cylinder, the third row of throttling holes sprays air to the outer wall of the piston, the piston is located in the air cylinder, and an air film gap exists between the outer wall of the piston and the inner wall of the air cylinder so that the wall faces of the piston and the inner wall of the air cylinder can not make contact. The mode that the throttling holes are evenly distributed in the axial direction is changed, the third row of throttling holes are additionally formed between the first row of throttling holes and the second row of throttling holes, the third row of throttling holes is changed into the mode that air is sprayed inwards (towards the outer wall of the piston), and due to the fact that the third row of throttling holes is additionally formed, the balance of gas bearing capacity in the axial direction is improved; and radial supporting force is provided in the whole period.

This invention discloses a screening device and method for thin filaments, comprising a first vibrating screen, a first vibrating screen plate, a first discharge chute, a second vibrating screen, a second vibrating screen plate, a second discharge chute, and a third discharge chute; the first and second vibrating screens are arranged sequentially along a conveying direction; the first vibrating screen plate is disposed within the first vibrating screen, and the first vibrating screen plate is a vibrating screen plate based on a sinusoidal basis function, with the material conveying direction on the first vibrating screen plate perpendicular to the extension direction of the trough line of the curved surface of the first vibrating screen plate; the first conveying plate has multiple first screening holes; the second vibrating screen plate is disposed within the second vibrating screen, and the second vibrating screen plate is located below the end of the first vibrating screen plate, the second vibrating screen plate is a vibrating screen plate based on a sinusoidal basis function, and the material conveying direction on the second vibrating screen plate is parallel to the extension direction of the trough line of the curved surface of the second vibrating screen plate; the second conveying plate has multiple second screening holes. The screening device of this application has high screening efficiency and good screening effect.

The utility model discloses a kind of desulfurization reactors for calcium-based dry method desulfurization process, including vertically arranged heat insulation cylinder, the bottom of heat insulation cylinder is equipped with flue gas inlet, top is equipped with flue gas outlet, the top of heat insulation cylinder is equipped with the flue gas reflux cap cover of being covered in it in flue gas outlet cover, flue gas reflux cap cover includes the cover cylinder of being fixedly connected with the top of heat insulation cylinder, cover cylinder top is equipped with the conical reflux hopper of the cone tip upwards, the lower end lateral wall of cover cylinder is equipped with desulfurization flue gas outlet, the inside of cover cylinder is equipped with first cyclone plate and the second cyclone plate located below first cyclone plate, the bottom of cover cylinder is equipped with a flat plate like deflector, deflector is obliquely arranged, with the inclination angle α of the flue gas in cover cylinder is guided to desulfurization flue gas outlet, the surface of deflector in facing cover cylinder inside side is equipped with ultrasonic wave dust-shaking device. The desulfurization reactor of the utility model can ensure that calcium hydroxide fine powder sprayed into flue gas can be rapidly activated and evenly distributed in flue gas.