COAL FLOW DISTRIBUTION CONTROLLERS FOR COAL PULVERIZERS

A solid particle flow distribution controller includes an extension skirt configured to be mounted to a discharge skirt at a division between an upstream solid particle conveyance pipe and a plurality of downstream pipes. The extension skirt includes a plurality of circumferential segments. Each segment is movably mounted to the discharge skirt for movement in an upstream and downstream direction with respect to the discharge skirt. The segments of the extension skirt are configured and adapted for motion in the upstream and downstream direction independent of one another to extend upstream of the discharge skirt as needed to improve solid particle distribution among the downstream pipes. 1. A solid particle flow distribution controller comprising:an extension skirt configured to be mounted to a discharge skirt at a division between an upstream solid particle conveyance pipe and a plurality of downstream pipes, the extension skirt including a plurality of circumferential segments, each segment movably mounted to the discharge skirt for movement in an upstream and downstream direction with respect to the discharge skirt, wherein the segments of the extension skirt are configured and adapted for motion in the upstream and downstream direction independent of one another to extend upstream of the discharge skirt as needed to improve solid particle distribution among the downstream pipes.2. A solid particle flow distribution controller as recited in claim 1 , wherein the circumferential segments are mounted inside the discharge skirt so when moved into a downstream position the circumferential segments are radially inward of the discharge skirt.3. A solid particle flow distribution controller as recited in claim 1 , wherein the circumferential segments are mounted to the discharge skirt by way of tracks configured to guide movement of the circumferential segments.4. A solid particle flow distribution controller as recited in claim 1 , wherein each circumferential segment ...

COAL FLOW DISTRIBUTION CONTROLLERS FOR COAL PULVERIZERS

A solid particle flow distribution controller includes an extension skirt configured to be mounted to a discharge skirt at a division between an upstream solid particle conveyance pipe and a plurality of downstream pipes. The extension skirt includes a plurality of circumferential segments. Each segment is movably mounted to the discharge skirt for movement in an upstream and downstream direction with respect to the discharge skirt. The segments of the extension skirt are configured and adapted for motion in the upstream and downstream direction independent of one another to extend upstream of the discharge skirt as needed to improve solid particle distribution among the downstream pipes. 1. A method of retrofitting a solid particle classifier comprising installing a plurality of circumferential skirt segments proximate a discharge skirt in a solid particle classifier , wherein the skirt segments are configured and adapted for motion in an upstream and downstream direction independent of one another relative to the discharge skirt to extend upstream as needed to improve solid particle distribution between outlets of the discharge skirt.2. A method of retrofitting as recited in claim 1 , wherein installing a plurality of circumferential skirt segments includes replacing a portion of the classifier.3. A method of retrofitting as recited in claim 2 , wherein replacing a portion of the classifier includes replacing a discharge turret of the classifier.4. A method of retrofitting as recited in claim 1 , wherein installing a plurality of circumferential skirt segments includes installing components in the classifier through one or more openings selected from the group consisting of a door claim 1 , a slot claim 1 , and a pipe opening. This application is a divisional application of U.S. patent application Ser. No. 13/428,113 filed Mar. 23, 2012, which claims priority to U.S. Provisional Patent Application No. 61/467,239 filed Mar. 24, 2011, each of which is incorporated ...

SYSTEM, METHOD AND APPARATUS FOR CONTROLLING THE FLOW DISTRIBUTION OF SOLID PARTICLES

A turret includes a generally frusto-conical shaped body and a plurality of static straightening vanes arranged interior to the body, the vanes dividing the body into a plurality of substantially equal sections. The vanes are configured to straighten a swirling flow of solid particles as they enter the body, and to divide the swirling flow into a plurality of straightened flows that are communicated to a plurality of coal outlet pipes. 1. A method for controlling the output of coal in a plurality of coal outlet pipes in a coal pulverizer , the method comprising the steps of: a generally frusto-conical shaped body; and', 'a plurality of static straightening vanes arranged interior to the body, the vanes dividing the body into a plurality of sections., 'modifying, or retrofitting, a portion of a coal pulverizer with a turret, the turret comprising2. The method according to claim 1 , wherein:the turret is positioned in an upper portion of the pulverizer above a classifier of the pulverizer and is in fluid communication with the classifier.3. The method according to claim 2 , further comprising the steps of:within the classifier of the pulverizer, generating a swirling flow of coal;within the turret, dividing the swirling flow of coal into a plurality of flows equal in number to the number of sections within the turret; andwithin each of the sections of the turret, straightening the flows of coal.4. The method according to claim 3 , further comprising the step of:transporting the plurality of flows of coal into the plurality of coal outlet pipes associated with each of the section;wherein the plurality of flows of coal are generally vertical through the turret.5. The method according to claim 1 , wherein:the number of straightening vanes is equal to the number of coal outlet pipes in the pulverizer.6. The method according to claim 1 , further comprising the step of:adjusting a height of at least one of the straightening vanes in dependence upon a detected coal flow ...

SYSTEM, METHOD AND APPARATUS FOR CONTROLLING THE FLOW DISTRIBUTION OF SOLID PARTICLES

A deflector ring includes a generally annular body, and a plurality of static straightening vanes arranged interior to the body, the vanes dividing the body into a plurality of substantially equal sections. The vanes are configured to straighten a swirling flow of solid particles as they enter the annular body, and to divide the swirling flow into a plurality of straightened flows that are communicated to a turret positionable above the deflector ring. 1. A deflector ring for a pulverizer , comprising:a generally annular body; anda plurality of static straightening vanes arranged interior to the body, the vanes dividing the body into a plurality of sections;wherein the vanes are configured to straighten a swirling flow of solid particles as they enter the annular body, and to divide the swirling flow into a plurality of straightened flows that are communicated to a turret positionable above the deflector ring.2. The deflector ring of claim 1 , wherein:the number of straightening vanes is equal to the number of coal outlet pipes in the pulverizer.3. The deflector ring of claim 2 , wherein:each of the straightening vanes is selectively extendable and retractable in a vertical direction for adjusting a height of each of the vanes.4. The deflector ring of claim 3 , wherein:the height of each straightening vane is designed to be individually adjusted.5. The deflector ring of claim 4 , wherein:each of the straightening vanes includes three segments;wherein in an extended position the height of a respective vane is substantially equal to a combined height of the three segments; andwherein in a retracted position the height of a respective vane is substantially equal to a height of a single segment.6. The deflector ring of claim 1 , wherein:a feed pipe extends through the annular body, the feed pipe and the annular body being substantially concentric;wherein each of the straightening vanes extends radially from the feed pipe to an inner peripheral wall of the annular body.7 ...

SYSTEM, METHOD AND APPARATUS FOR CONTROLLING THE FLOW DISTRIBUTION OF SOLID PARTICLES

A turret includes a generally frusto-conical shaped body and a plurality of static straightening vanes arranged interior to the body, the vanes dividing the body into a plurality of substantially equal sections. The vanes are configured to straighten a swirling flow of solid particles as they enter the body, and to divide the swirling flow into a plurality of straightened flows that are communicated to a plurality of coal outlet pipes. 1. A turret for a pulverizer , comprising:a generally frusto-conical shaped body; anda plurality of static straightening vanes arranged interior to the body, the vanes dividing the body into a plurality of sections;wherein the vanes are configured to straighten a swirling flow of solid particles as they enter the body, and to divide the swirling flow into a plurality of straightened flows that are communicated to a plurality of coal outlet pipes.2. The turret of claim 1 , wherein:the number of straightening vanes is equal to the number of coal outlet pipes in the pulverizer.3. The turret of claim 2 , wherein:each of the straightening vanes is selectively extendable and retractable in a vertical direction for adjusting a height of each of the vanes.4. The turret of claim 3 , wherein:the height of each straightening vane is designed to be individually adjusted.5. The turret of claim 4 , wherein:each of the straightening vanes includes four segments;wherein in an extended position the height of a respective vane is substantially equal to a combined height of the four segments; andwherein in a retracted position the height of a respective vane is substantially equal to a height of a single segment.6. The turret of claim 1 , wherein:a feed pipe extends through the body, the feed pipe and the body being substantially concentric;wherein each of the straightening vanes extends radially from the feed pipe to an inner peripheral wall of the body.7. The turret of claim 2 , wherein:the plurality of straightening vanes is seven straightening vanes ...

SYSTEM, METHOD AND APPARATUS FOR CONTROLLING THE FLOW DISTRIBUTION OF SOLID PARTICLES

A turret includes a generally frusto-conical shaped body and a plurality of static vanes arranged interior to the body and extending inwardly from an interior sidewall of the body. The vanes are configured to guide a swirling flow of solid particles as they enter the body, and to divide the swirling flow into a plurality of controlled flows that are communicated to a plurality of coal outlet pipes. 1. A turret for a pulverizer , comprising:a generally frusto-conical shaped body; anda plurality of static vanes arranged interior to the body and extending inwardly from an interior sidewall of the body;wherein the vanes are configured to guide a swirling flow of solid particles as they enter the body, and to divide the swirling flow into a plurality of controlled flows that are communicated to a plurality of coal outlet pipes.2. The turret of claim 1 , wherein:the number of vanes is equal to the number of coal outlet pipes in the pulverizer.3. The turret of claim 2 , wherein:each of the vanes includes a body having a leading edge and a trailing edge; andwherein the leading edge is located adjacent to a bottom of the turret and the trailing edge is located adjacent to a top of the turret and a respective one of the coal outlet pipes.4. The turret of claim 3 , wherein:the body of each of the vanes has a generally twisted shape.5. The turret of claim 4 , wherein:the twisted shape of the body of the vanes at the leading edge is configured to generally match the flow of solid particles at the bottom of the turret.6. The turret of claim 5 , wherein:the leading edge is narrower than the trailing edge.7. The turret of wherein:a pitch angle of each of the vanes is approximately 65 degrees from horizontal.8. The turret of claim 1 , wherein:the solid particles are pulverized coal particles.9. A method for controlling the output of coal in a plurality of coal outlet pipes in a coal pulverizer claim 1 , the method comprising the steps of: a generally frusto-conical shaped body; and ...

SYSTEM AND METHOD FOR MONITORING BEARING HEALTH IN A JOURNAL ASSEMBLY

A system for monitoring the health of one or more bearings of a journal assembly is provided. The system includes a split spacer, one or more vibration sensors, a speed sensor, and a controller. The split spacer is configured to be disposed on a shaft of the journal assembly, the shaft is configured to support the bearings. The vibration sensors are configured to detect vibrations emitted by the bearings. The speed sensor is configured to measure the rotational speed of the bearings. The controller is configured to electronically communicate with the vibration sensors and the speed sensor and calculate a health status of the bearings. The split spacer includes two portions that define a cavity configured to abut the shaft so as to allow the vibration sensors to be disposed inside the split spacer and next to the one or more bearings. 1. A system for monitoring the health of one or more bearings of a journal assembly , the system comprising:a split spacer configured to be disposed on a shaft of the journal assembly, the shaft configured to support the one or more bearings;one or more vibration sensors configured to detect vibrations emitted by the one or more bearings;a speed sensor configured to measure the rotational speed of the one or more bearings;a controller configured to electronically communicate with the one or more vibration sensors and the speed sensor and calculate a health status of the one or more bearings; andwherein the split spacer includes two portions that define a cavity configured to abut the shaft so as to allow the one or more vibration sensors to be disposed inside the split spacer and next to the one or more bearings.2. The system of claim 1 , wherein the split spacer is configured to remain stationary in relation to the shaft and to secure the speed sensor such that the speed sensor measures the rotational speed of the one or more bearings by detecting the rotational speed of a rotating component claim 1 , of the journal assembly claim 1 , ...

SYSTEM, METHOD AND APPARATUS FOR CONTROLLING THE FLOW DISTRIBUTION OF SOLID PARTICLES

A turret includes a generally frusto-conical shaped body and a plurality of static vanes arranged interior to the body and extending inwardly from an interior sidewall of the body. The vanes are configured to guide a swirling flow of solid particles as they enter the body, and to divide the swirling flow into a plurality of controlled flows that are communicated to a plurality of coal outlet pipes. 1. A turret for a pulverizer , comprising:a generally frusto-conical shaped body; anda plurality of static vanes arranged interior to the body and extending inwardly from an interior sidewall of the body;wherein the vanes are configured to guide a swirling flow of solid particles as they enter the body, and to divide the swirling flow into a plurality of controlled flows that are communicated to a plurality of outlet pipes;wherein a body of each of the vanes has a twisted shape, a leading edge, and a trailing edge, the twisted shape of the body of the vanes at the leading edge being configured to generally match a flow of the solid particles at a bottom of the turret, and wherein a pitch angle of each of the vanes is set to coincide with a flow of the solid particles within the turret.2. The turret of claim 1 , wherein:the number of vanes is equal to the number of outlet pipes in the pulverizer.3. The turret of claim 1 , wherein:wherein the leading edge is located adjacent to a bottom of the turret and the trailing edge is located adjacent to a top of the turret and a respective one of the outlet pipes.4. The turret of claim 1 , wherein:the leading edge is narrower than the trailing edge.5. The turret of claim 1 , wherein:the pitch angle of each of the vanes is approximately 65 degrees from horizontal.6. The turret of claim 1 , wherein:the solid particles are pulverized coal particles.7. The turret of claim 1 , wherein the swirling flow of solid particles is provided by a classifier claim 1 , wherein the classifier is configured to reject coarse solid particles from the ...

Low excess air tangential firing system

A furnace (10) in which pulverized coal is burned in suspension. The coal is introduced along with primary air, tangent to an imaginary circle (42). The auxiliary air is introduced tangent to an imaginary circle (44) directly above the primary air, in a direction of rotation opposite that of the primary air. The auxiliary air is directed tangent to a circle of greater diameter than that of the primary air. There are a plurality of alternating levels within the furnace where primary air (38), and then auxiliary air (40), is introduced.

Coal flow distribution controllers for coal pulverizers

A solid particle flow distribution controller includes an extension skirt configured to be mounted to a discharge skirt at a division between an upstream solid particle conveyance pipe and a plurality of downstream pipes. The extension skirt includes a plurality of circumferential segments. Each segment is movably mounted to the discharge skirt for movement in an upstream and downstream direction with respect to the discharge skirt. The segments of the extension skirt are configured and adapted for motion in the upstream and downstream direction independent of one another to extend upstream of the discharge skirt as needed to improve solid particle distribution among the downstream pipes.

System, method and apparatus for controlling the flow distribution of solid particles

A turret includes a generally frusto-conical shaped body and a plurality of static straightening vanes arranged interior to the body, the vanes dividing the body into a plurality of substantially equal sections. The vanes are configured to straighten a swirling flow of solid particles as they enter the body, and to divide the swirling flow into a plurality of straightened flows that are communicated to a plurality of coal outlet pipes.

System, method and apparatus for controlling the flow distribution of solid particles

A turret includes a generally frusto-conical shaped body and a plurality of static vanes arranged interior to the body and extending inwardly from an interior sidewall of the body. The vanes are configured to guide a swirling flow of solid particles as they enter the body, and to divide the swirling flow into a plurality of controlled flows that are communicated to a plurality of coal outlet pipes.

Coal flow distribution controllers for coal pulverizers

A solid particle flow distribution controller includes an extension skirt configured to be mounted to a discharge skirt at a division between an upstream solid particle conveyance pipe and a plurality of downstream pipes. The extension skirt includes a plurality of circumferential segments. Each segment is movably mounted to the discharge skirt for movement in an upstream and downstream direction with respect to the discharge skirt. The segments of the extension skirt are configured and adapted for motion in the upstream and downstream direction independent of one another to extend upstream of the discharge skirt as needed to improve solid particle distribution among the downstream pipes.

Fremgangsmaade til drift af en tangentialt med kulstoev fyret ovn

Sistema de quemado por pequeño exceso de aire tangencial.

Low excess air tangential firing system

Low excess air tangential firing system