Abrégé

A remote submerged chain conveyor system for separating particles from a coal ash/water slurry from one or more remotely located boiler units. A tank forms an ash holding section, a dewatering section, and an ash settling section. The ash holding section receiving the slurry with first and second opposite ends. The dewatering section dewaters the slurry. The settling zone is an elongated trough connected with the ash holding section at one end with a discharge drain trough at near an opposite end. The tank sections being oriented in a generally linear arrangement wherein a net flow of water from the ash/water slurry is in a direction from the settling zone toward the distal and. A drag chain moves along the ash settling conveying the particles settling from the slurry to the dewatering section.

Classes IPC  ?

• B01D 21/02 - Bacs de décantation
• B01D 21/24 - Mécanismes d'alimentation ou d'évacuation pour bacs de décantation
• B01D 21/28 - Dispositifs mécaniques auxiliaires pour accélérer la sédimentation, p. ex. par des vibrateurs

Abrégé

A nozzle block for a sootblower of the type for cleaning internal heat transfer surfaces of large scale coal fired combustion systems. For cleaning the internal surfaces, a cleaning medium is often used in the form of steam. Due to the cyclical operations and the process of condensation, condensate slugs of water can form in the sootblower fluid flow components. If these slugs are ejected against clean surfaces, undesirable erosion can occur. Several embodiments of nozzle blocks are described each having one or more ejection ports at their distal ends configured to maximize the ejection of condensates while minimizing their cross- sectional area which would diminish nozzle fluidic efficiency. Additional features enhance the ability of the nozzle block to separate and disperse condensate from the slots.

Classes IPC  ?

• F28G 1/16 - Accessoires non rotatifs, p. ex. alternatifs utilisant des jets de fluide pour enlever les débris
• F28G 3/16 - Accessoires rotatifs utilisant des jets de fluide pour enlever les débris
• F28G 15/00 - NETTOYAGE DES SURFACES INTERNES OU EXTERNES DES CONDUITS DES ÉCHANGEURS DE CHALEUR OU DE TRANSFERT DE CHALEUR, p. ex. TUBES D'EAU DE CHAUDIÈRES Parties constitutives

Abrégé

An ash transport system and method is provided that includes a transport line, four hoppers, and an airlock or hopper valve attached to each hopper. The ash transport system transports an ash mass from the airlock or hopper valve to the transport line if pressure in the transport line falls below a predefined pressure threshold assigned to the respective airlock or hopper valve. After a predefined period of time elapses, the ash transport system transports the ash mass from the airlock or hopper valve to the transport line if the pressure in the transport line falls below different respective predefined pressure thresholds. The airlocks and hopper valves simultaneously transport the ash masses to the transport line if, prior to the predefined period of time elapsing, the pressure in the transport line falls below each of the respective predefined pressure thresholds.

Classes IPC  ?

• B65G 51/16 - Variation, p. ex. mise en marche ou arrêt, de la pression ou de l'écoulement du gaz
• B65G 51/40 - Distribution automatique des cartouches entre les stations désirées
• B65G 53/04 - Transport pneumatique de matériaux en vrac par tuyaux ou tubesGlissières à insufflation d'air

Abrégé

A grinder roller assembly and a method of forming a grinder roller assembly are provided. The grinder roller assembly includes an elongated shaft that comprises a shaft outer surface. The grinder roller assembly further includes an insert plate. The insert plate has a plate outer surface that is noncircular and substantially smooth. The insert plate further has a plate opening that defines a plate inner surface and is configured to receive the elongated shaft. The grinder roller assembly further includes a roller having a roller opening that defines a roller inner surface that cooperates with the plate outer surface. The grinder roller assembly further includes at least one fastener that attaches the insert plate to the elongated shaft.

Classes IPC  ?

• B02C 4/30 - Forme ou structure des meules

Abrégé

A sootblower isolation wall box provided for sealing the wall box opening of a large scale boiler to provide sootblower lance tube access to the boiler. The wall box assembly includes a clamping seal assembly having radial sealing segments which are individually actuated. Applying fluid pressure to actuating cylinders causes the seal segments to be clamped against the outer circumference of the sootblower lance tube. During cleaning cycles, the segments are actuated to provide a radial clearance with the lance tube. Preferably, the clamping seal assembly is used in connection with another seal assembly which is relied upon to provide sealing during the cleaning steps. In a preferred embodiment, the additional seal assembly is in the form of a labyrinth-type seal assembly.

Classes IPC  ?

• F23J 3/02 - Nettoyage des tubes de foyerNettoyage des carneaux ou cheminées

Abrégé

A sootblower is provided having a multidirectional cleaning range for directing a cleaning medium against heated surfaces in a heat exchanger. The sootblower includes a rotatable lance tube that is selectively advanced and withdrawn along a longitudinal axis from an interior volume of the heat exchanger. The lance tube includes an articulating wrist coupled to a nozzle for projecting the cleaning medium in multi-directions onto the heated surfaces when the lance tube is advanced into the heat exchanger. The nozzle is pivotable about the longitudinal axis and about a second axis transverse to the longitudinal axis.

Classes IPC  ?

• F23J 3/02 - Nettoyage des tubes de foyerNettoyage des carneaux ou cheminées

Abrégé

A cleaning apparatus for cleaning a smelt spout of a boiler is provided. The boiler includes a boiler wall defining an outlet port for discharging molten smelt and the smelt spout is positioned with respect to the outlet port so that the molten smelt is able to flow along the smelt spout. The cleaning apparatus includes a cleaning tool having a pair of cleaning blades generally aligned with respective side walls of the smelt spout and an actuating assembly configured to move the cleaning blades from a first position to a second position. The cleaning blades each engage the respective side walls of the smelt spout to dislodge hardened smelt deposits therefrom when in the cleaning blades are in the second position.

Classes IPC  ?

• D21C 11/12 - Combustion des liqueurs noires

Abrégé

The system uses a color camera and an optical system to map two colors emitted from an object such as a furnace, boiler combustion zone, or burner flame into a temperature image. The color camera utilizes a color video chip with interspersed pixels for each color to reduce alignment issues and utilize the same optical path. In addition, the optical system utilizes a dual band pass optical filter thereby eliminating the number of optical elements and minimizing radiation loss through the optical system thereby improving the dynamic range of the system.

Classes IPC  ?

• G01J 5/60 - Pyrométrie des radiations, p. ex. thermométrie infrarouge ou optique en utilisant la détermination de la température de couleur
• G01J 5/08 - Dispositions optiques