Apparatus configured for dispensing bedding inside of breeding cages for use in pharmaceutical preclinical research centres, including: a loading hopper located in the upper part of the apparatus, and adapted to contain the bedding to be supplied to the cages; at least one supporting plane adapted to support one or more cages, and positioned under the hopper; an actuator under the hopper, adapted to raise or lower the hopper and the at least one supporting plane; one or more dosing mouths located in the lower part of the loading hopper, and adapted to feed into the cages given quantities of bedding from the hopper; a dispensation system adapted to dispense bedding into the cages through the one or more dosing mouths; a control system adapted to determine the quantity of bedding and to control the actuator; and a base for supporting the apparatus.

The present disclosure discloses an exhaust gas purification device for purifying exhaust gas in a reflow oven hearth, the exhaust gas purification device comprising: a filtering unit; a filtering component provided in the filtering unit; a controllable gas passage that controllably communicates an interior of the filtering unit with an external environment containing oxygen, the controllable gas passage being configured to controllably introduce gas containing oxygen into the filtering unit; a heating component provided in the filtering unit, wherein the heating component is configured to be capable of heating the gas in the filtering unit to an oxidation temperature at which carbon in adherent substances on the filtering component is capable of chemically reacting to produce a gas. The exhaust gas purification device of the present disclosure has a long maintenance period, which can greatly reduce the maintenance cost.

The present disclosure discloses a mobile sterilization system, a sterilization vehicle, a mobile execution system, a mobile preprocessing system, and a mobile analysis system. The mobile sterilization system includes a vehicle body, a sterilization system, a hydrothermal system, a gas supply system, a gas processing system, a humidification system, and a fresh air system, the sterilization system, the hydrothermal system, the gas supply system, the gas processing system, the humidification system, and the fresh air system being mounted on the vehicle body.

A high-temperature dust removal and filtering apparatus, comprising a set of high-temperature dust removal and filtering devices and a pre-heating apparatus and regeneration apparatus provided for the high-temperature dust removal and filtering devices; a high-temperature dust removal and filtering system, comprising two or more sets of high-temperature dust removal and filtering devices, and a pre-heating apparatus and regeneration apparatus provided for the high-temperature dust removal and filtering devices; a continuous dust removal and filtering method consisting of two or more sets of high-temperature dust removal and filtering devices and a pre-heating apparatus and regeneration apparatus provided for the high-temperature dust removal and filtering devices. Said method is implemented with a high-temperature dust removal and filtering system capable of switching. The high-temperature dust removal and filtering system always keeps one or more sets of high-temperature dust removal and filtering devices in a normal filtering state.

A flush valve, a dust collector provided with such a flush valve and a dust collection system, are disclosed. The flush valve includes a valve body and a valve spool. The valve body is internally provided with a fluid passageway. The valve body is provided with an inlet, a first outlet and a second outlet. The first outlet is fluidly connected to a device to be flushed. The valve spool includes a movable part, a fixed part and an elastic part, the fixed part being provided in the valve body, and the elastic part elastically connecting said fixed part to the movable part. One end of the movable part being provided with a first spool land for blocking the first outlet. The first spool land being configured to be pushed away from said first outlet by fluid in the fluid passageway when the pressure drops due to blockage.

Smoke evacuation system for removal of aerosolized chemical compounds and biological fine particles produced during laser treatment of tissue. The rapid smoke evacuation is achieved by coupling a low capacity vacuum pump to a vacuum valve and a vacuum reservoir to create very high flow rate for very short durations. The opening time of the valve could at least partially overlap the laser pulse duration.

Smoke evacuation system for removal of aerosolized chemical compounds and biological fine particles produced during laser treatment of tissue. The rapid smoke evacuation is achieved by coupling a low capacity vacuum pump to a vacuum valve and a vacuum reservoir to create very high flow rate for very short durations. The opening time of the valve could at least partially overlap the laser pulse duration.

An air filtering cover is adapted to engage with an infant carrier to filter air communicated into an interior cavity thereof. A cover body having two sidewalls and a filter element form a flowpath for air communicating through the body and filter to remove dirt, dust, and pathogens from air reaching the occupant of the interior cavity. The filter may be replaceable within a pocket formed in the cover body. A gauge strip may be positioned on the filter which changes in appearance when the filter needs replacement.

A modular digital filter, regulator and lubricator (FRL) connector and system are provided. The modular digital filter, regulator and lubricator connector and system are especially suitable for use in improving compressed air quality so as to extend the life of tools and machines which are connected to the FRL devices. The connector device and system allows for a quick and efficient connection with respect to both electronics and air lines and reduces problems that arise from wire pig-tailing or accidental disconnection of the FRL. The device and system may have digital, visual and audible warnings with respect to the quality of air passing through the system and to the tools and machines.

An extractive gas analyser system includes a supply channel, a measuring channel connected thereto between first and second ends, an analysing unit comprising an optical arrangement for analysing gaseous material in the measuring channel, which optical arrangement comprises first and second optical units arranged respectively at first and second ends of the measuring channel, a barrier arrangement near each end of the measuring channel and comprising a barrier gas inlet and outlet arranged in opposing manner across said measuring channel, each in connection with a gas source and provided with a nozzle opening directed toward the opposing outlet, said barrier arrangement arranged to provide pressurized gas creating a barrier gas curtain between the barrier gas inlet and outlet to force least a part of the gaseous material from the supply channel into the measuring channel and out through the outlet and thereby separate the gaseous material from said optical units.