A system for removing dust from exhaust gas of an engine, comprising an exhaust gas electric field apparatus and an oxygen replenishment apparatus. The exhaust gas electric field apparatus comprises an exhaust gas electric field apparatus inlet, an exhaust gas electric field apparatus outlet, an exhaust gas dust-removing electric field cathode and an exhaust gas dust-removing electric field anode. The exhaust gas dust-removing electric field cathode and the exhaust gas dust-removing electric field anode are used to generate an ionizing electric field for removing dust from exhaust gas. The oxygen replenishment apparatus is used to add an oxygen-containing gas to the exhaust gas before applying an ionizing electric field for dust removal thereto. The system for removing dust from exhaust gas of an engine has the advantageous effect of dust removal and can effectively remove particulates in exhaust gas of an engine.

In order to provide a dust-containing gas treatment apparatus which can smoothly achieve the treatment of gas containing dust of high concentration, the apparatus is equipped with a cylindrical treatment room to introduce gas containing dust and remove the dust from the gas, catcher consisting of brush with the hair planted in the support installed in the treatment room to catch the dust contained in the gas, liquid spraying mechanism installed in the treatment room, rotary driving mechanism to rotate the catcher and stirrer, gas introducing portion to introduce the gas containing dust, gas discharging portion to discharge the gas, the dust removed, from the treatment room and liquid discharging portion to discharge the liquid containing the dust removed from the gas.

Examples are disclosed that relate to cooking systems with internal ventilation systems. One example provides a cooking system comprising a cooking appliance, a ventilation duct comprising an inlet aperture configured to receive cooking exhaust, a fan disposed within the ventilation duct, the fan being configured to pull the cooking exhaust through the inlet aperture and the ventilation duct, a particulate removal system positioned within the ventilation duct between the inlet aperture and the fan, and a grease containment pan disposed beneath the particulate removal system and comprising a mount for supporting the particulate removal system, the grease containment pan being removable from the ventilation duct by a user for cleaning.

An electrostatic air precipitator for emission remediation including, a grounded frame connected to a housing having an upstream direction and a downstream direction with a first ionizing section, having at least a first set of ionizing members and a second set of ionizing members, where the ionizing members of the first set and the second set are electrically isolated from each other and electrically isolated from the grounded frame. Also, the ionizing members of the first set and the ionizing members of the second set are powered by separate power supplies and at least a first collector section is located downstream of the first ionizing section, and the first collector section has at least a first plurality of collector plates.

An electrostatic air precipitator for emission remediation including, a grounded frame connected to a housing having an upstream direction and a downstream direction with a first ionizing section, having at least a first set of ionizing members and a second set of ionizing members, where the ionizing members of the first set and the second set are electrically isolated from each other and electrically isolated from the grounded frame. Also, the ionizing members of the first set and the ionizing members of the second set are powered by separate power supplies and at least a first collector section is located downstream of the first ionizing section, and the first collector section has at least a first plurality of collector plates.

A standing chair comprises a main frame support assembly with a first frame support and a second frame support, at least two collapsible support arms with a first end and a second end, at least one bracket, at least one seat assembled to the collapsible support arms, a drive member positioned between right frame support and one collapsible support arm, another drive member positioned between left frame support and other collapsible support arm and a foot rest assembly with a pair of leg support bars. Right and left frame supports are parallelly connected and locked via a connecting means. The first ends of collapsible arms are moveably affixed to both right and left frame supports, whereas second ends are pivotally connected to a backrest support via fasteners. The two collapsible support arms are configured to automatically collapse and retract in accordance to sitting or standing mode of the standing chair.

An electrostatic precipitating apparatus for a cooling tower is provided. The precipitating apparatus include an electrostatic precipitator including a plurality of discharge electrodes to which a voltage is applied and a plurality of electrostatic precipitating electrodes each disposed between the discharge electrodes and grounded, a washing water supply spraying the washing water to the electrostatic precipitator, and a frame assembly supporting the electrostatic precipitator. The electrostatic precipitator includes a first setting beam having a plurality of lower slots into which the discharge electrodes are fixedly inserted, and the frame assembly includes a lower frame extending in a stacking direction of the discharge electrodes to support the first setting beam, via which a voltage is applied to the discharge electrode.

An electrostatic precipitating apparatus for a cooling tower is provided. The precipitating apparatus include an electrostatic precipitator including a plurality of discharge electrodes to which a voltage is applied and a plurality of electrostatic precipitating electrodes each disposed between the discharge electrodes and grounded, a washing water supply spraying the washing water to the electrostatic precipitator, and a frame assembly supporting the electrostatic precipitator. The electrostatic precipitator includes a first setting beam having a plurality of lower slots into which the discharge electrodes are fixedly inserted, and the frame assembly includes a lower frame extending in a stacking direction of the discharge electrodes to support the first setting beam, via which a voltage is applied to the discharge electrode.

A pollution control system for removing particle and gas phase pollutants in a waste airstream exhausted from commercial cooking operations may include a plurality of filters arranged within a housing for filtering particle and gas phase pollutants in the waste airstream. Various ones of the filters may be composed of a variety of different materials, and ozone may be provided within the housing to assist with removal of the pollutants. In some examples, a wash mechanism may be included to wash surfaces of a filter to remove grease therefrom. In some examples, the system may further include means to spray droplets (such as in a fog or mist form) into the waste airstream to condense a portion of gas phase pollutants into condensed particles.

A pollution control system for removing particle and gas phase pollutants in a waste airstream exhausted from commercial cooking operations may include a plurality of filters arranged within a housing for filtering particle and gas phase pollutants in the waste airstream. Various ones of the filters may be composed of a variety of different materials, and ozone may be provided within the housing to assist with removal of the pollutants. In some examples, a wash mechanism may be included to wash surfaces of a filter to remove grease therefrom. In some examples, the system may further include means to spray droplets (such as in a fog or mist form) into the waste airstream to condense a portion of gas phase pollutants into condensed particles.