Raymond K Kim

US Patent:

48302872, May 16, 1989

Filed:

Oct 6, 1987

Appl. No.:

7/106830

Inventors:

Raymond K. Kim - Canton OH

Assignee:

The Babcock & Wilcox Company - New Orleans LA

International Classification:

B02C 2334

US Classification:

241 19

Abstract:

An apparatus for supplying a controlled flow of pneumatically transported solid particles, in particular, pulverized coal, comprises a pulverizer or vessel for containing pneumatically suspended solid particles. A supply pipe is connected to the pulverizer or vessel for removing a mixture of pneumatic gas and solid particles from the vessel. A bend is provided in the supply pipe and an aspirator is connected to the supply pipe at a distance of from one to two pipe diameters from the bend. The aspirator is provided on the outer wall of the bend and is supplied with aspirating gas to draw off an amount of mixture from the supply pipe. This controls the amount of remaining flow of mixture through the pipe. The supply of the aspirator is connected to a bypass line which is connected to the mixture inlet of an injector which is supplied with injecting gas. The supply of the injector which carries the mixture is connected back into the vessel.

US Patent:

49039016, Feb 27, 1990

Filed:

Nov 28, 1988

Appl. No.:

7/276822

Inventors:

Raymond K. Kim - Canton OH
John B. Kitto - North Canton OH

International Classification:

B02C 2320

US Classification:

241 33

Abstract:

An apparatus and method for supplying a controlled flow of fluid transported solid particles, in particular, pulverized coal by the controlled injection of a fluid, such as a gas like compressed air, into at least one feed pipe. The flow of coal in feed pipes is controlled by selectively reducing or increasing the flow of primary air to achieve a balanced burner operation.

US Patent:

49325949, Jun 12, 1990

Filed:

May 24, 1988

Appl. No.:

7/197926

Inventors:

Raymond K. Kim - Canton OH

Assignee:

The Babcock & Wilcox Company - New Orleans LA

International Classification:

B02C 2334

US Classification:

241 19

Abstract:

An apparatus for supplying a controlled flow of pneumatically transported solid particles, in particular, pulverized coal, comprises a pulverizer or vessel for containing pneumatically suspended solid particles. A supply pipe is connected to the pulverizer or vessel for removing a mixture of pneumatic gas and solid particles from the vessel. A bend is provided in the supply pipe and an aspirator is connected to the supply pipe at a distance of from one to two pipe diameters from the bend. The aspirator is provided on the outer wall of the bend and is supplied with aspirating gas to draw off an amount of mixture from the supply pipe. This controls the amount of remaining flow of mixture through the pipe. The supply of the aspirator is connected to a bypass line which is connected to the mixture inlet of an injector which is supplied with injecting gas. The supply of the injector which carries the mixture is connected back into the vessel.

US Patent:

45692327, Feb 11, 1986

Filed:

Oct 1, 1984

Appl. No.:

6/656210

Inventors:

Raymond K. Kim - Canton OH

Assignee:

The Babcock & Wilcox Company - New Orleans LA

International Classification:

G01F 174

US Classification:

7386104

Abstract:

A flowmeter particularly adapted for measuring the mass flow rate of a mixture of pulverized coal and air. An orifice flowmeter is located in a conduit carrying the mixture, and a reaction mass flowmeter is connected to the conduit either upstream or downstream of the orifice flowmeter. The reaction mass flowmeter includes inner and outer elbows with the inner elbow fixed at one end and free at the other, with a load cell mounted thereon to measure the reaction force caused by the change of direction of the mixture as it transits the elbow.

US Patent:

50487612, Sep 17, 1991

Filed:

Mar 14, 1990

Appl. No.:

7/493171

Inventors:

Raymond K. Kim - Canton OH

Assignee:

The Babcock & Wilcox Company - New Orleans LA

International Classification:

B02C 2334

US Classification:

241 19

Abstract:

An apparatus and method for monitoring and controlling the flow of fluid transported solid particles is described. Also an integrated system is disclosed for monitoring and controlling pulverized coal in a non-intrusive manner employing a fluid such as air. The coal flow in each feed pipe is regulated so as to achieve a desired flow balance among the burners in a boiler.

US Patent:

51178567, Jun 2, 1992

Filed:

Sep 19, 1991

Appl. No.:

7/762279

Inventors:

Raymond K. Kim - Canton OH
Larry Jeffers - Alliance OH

Assignee:

The Babcock & Wilcox Company - New Orleans LA

International Classification:

G05D 700

US Classification:

137110

Abstract:

A valve arrangement for use in measuring a wide range of gas flow rates, comprises a valve housing including one inlet for a gas flow and two outlets, one for a low flow rate and the other for high flow rate. A plug is vertically moveable in the housing and includes a large diameter lower end engageable against a seat for closing a large port in the housing, and a small diameter upper end for engagement against an upper small diameter seat in the housing. The large and small seats communicate with the high and low flow rate outlets. Ferromagnetic material forms at least part of each seat with the plug being magnetic for retaining either its upper or lower position depending on the inlet flow rate. With a high inlet flow rate, the plug is lifted from its lower seat to close its low flow rate outlet and open its high flow rate inlet. At low flow rate, gravity causes the plug to drop.