A spraying apparatus is configured such that a liquid stored in a liquid storage tank is pressurized by a liquid supplier and is supplied to a mist nozzle, so that a liquid flow is introduced from an upstream of a gas-liquid mixing section and a vicinity of a wall surface of the gas-liquid mixing section into the gas-liquid mixing section on an outer lid side. A pressurized gas is supplied from a gas supplier from a facing surface, so that a gas flow is introduced into the gas-liquid mixing section and collides with the liquid flow, and a gas-liquid mixed flow is advanced to a spout portion while circulating the wall surface of the gas-liquid mixing section on the outer lid side.

A nozzle for a spray gun, in particular a paint spray gun, has at least one material nozzle having a hollow portion for the passage of material to be sprayed; a material outlet opening; and a disk element extending radially from the material nozzle and having at least one passage opening. The nozzle has at least one first baffle disk which is arranged on the disk element and has an inner and an outer circumference. The first baffle disk is arranged on the disk element directly, in particular without a sealing element arranged inbetween. The disadvantages that separate sealing elements have to be specially produced and may be lost or damaged, can thereby be avoided. The nozzle according to the disclosure and related nozzle sets, paint spray guns and methods for producing nozzles are functionally reliable, have only few individual parts and a compact design and are quiet.

A spray drying system for drying liquid into powder including a plurality of processing towers each including an elongated drying chamber, a spray nozzle assembly at an upper end of the drying chamber and a powder collection chamber at a lower end of the drying chamber. The powder collection chamber of each processing tower being configured to discharge power to a common conveyor system.

An automatic cleaning and spraying device includes a mixer connected in series with a gas pipeline of the spraying device. A cleaning liquid (such as a solvent) introduced by the mixer is guided to a controlled cleaning liquid valve installed at the front end of the cleaning liquid pipeline, so that the cleaning liquid can be mixed with a gas, and then the mixed liquid and gas flow towards a spray valve and an atomizer. During a normal spray operation, only the pressurized gas valve and spray valve are turned on for the actual spray operation. After a specific period of operation, the cleaning liquid valve may be controlled automatically to input the cleaning liquid to the mixer and then to the spray valve and atomizer in order to clean the surrounding and inner wall of the spray outlet and achieve the effect of cleaning the spraying device automatically.

An emitter system capable of discharging an atomized liquid-gas stream or a liquid stream which atomizes into a spray has a source of pressurized gas and one or more sources of pressurized liquids. Flow of gas and liquid to an emitter is controlled by valves, and the emitter can be used to discharge either the atomized liquid-gas stream or the liquid stream. The emitter system may be used for fire suppression.

The present invention relates to a dry cleaning technology for a cleaning a surface of an object to be cleaned by adiabatically expanding liquid carbon dioxide to generate sublimable dry ice particles and carrying the dry ice particles on high-speed carrier gas to be sprayed onto the surface of the object to be cleaned, wherein an end of a liquid carbon dioxide nozzle further protrudes to the outside relative to an end of a carrier gas nozzle to prevent a growth of dry ice particles in the carrier gas nozzle, a hydrophobic coating is formed on a surface of the liquid carbon dioxide nozzle to prevent a formation of water droplets and to prevent an occurrence of irregular dry ice particles, thereby effectively preventing damage to a surface of an object to be cleaned and being advantageous in an economical aspect by significantly reducing consumption of liquid carbon dioxide.

An air-cap nozzle 103b for discharging an atomising air jet 101b for atomising paint from a spray gun, the air cap nozzle comprising a tip surface having an atomizing air outlet 100b and a rim region 102b surrounding the outlet. The rim region 102b comprises a continuous serrated portion formed by a plurality of protrusions 104 that protrude axially outward from the rim region 100b of the tip surface. The protrusions 104 are separated by valleys 105 configured to permit entrainment of ambient air by the atomising air jet 101b, the entrained ambient air being drawn through the valleys. The permitted entrainment provides mixing between the entrained ambient air and the atomising air jet 101b.

A manufacturing system manufactures a predetermined product by printing and applying a coating agent to a base material made of resin. In a coating device of the manufacturing system, as a nozzle spraying the coating agent moves once in a first direction, a linear coating agent being the coating agent in a line shape with the first direction as a longitudinal direction is applied to the base material. A host control device creates application data for applying the coating agent to the base material by the coating device based on image data as data of an image to be printed on the base material by printing devices, and the application data includes, for applying the linear coating agents to the base material, spray range data of the coating agent from the nozzle in the first direction, and application interval data of the linear coating agents in a second direction.

A method for monitoring a nozzle mouthpiece for placing on a nozzle for spraying materials, in particular dispersions, emulsions or suspensions.

Provided is a spray head structure (1), comprising an airflow pipe (10), a rotary member (30), a load member (70), a tan component (100), a spoiler pipe (41) and a liquid flow pipe (50), wherein the rotary member (30) is rotatable sleeved on the airflow pipe (10), the load member (70) is mounted at the rotary member (30) to increase the load so as to improve the torsion of the rotary member, the fan component (100) is mounted at the rotary member (30). the spoiler pipe (41) is fixedly arranged on the rotary member (30) and is provided with a spoiler channel (41) in communication with the airflow pipe (10), and the spoiler channel (41) is provided with an outlet end (411), and an injection path forming an acute angle 0 with the axis of the airflow pipe (10), Gas at a high flow rate enables the spoiler pipe to drive the rotary member to rotate relative to the airflow pipe, such that the fan component is driven to rotate to form an airflow, so that the air flow can flow from the fan component to the outlet end to improve the atomization effect thereof, or can flow from the outlet end to the fan component to perform the suction of impurities.