公开(公告)号：US07124968B2

公开(公告)日：2006-10-24

申请号：US10988367

申请日：2004-11-12

Applicant: Robin R. Oder ,  Russell E. Jamison

Inventor： Robin R. Oder ,  Russell E. Jamison

IPC: B02C19/12

CPC classification number: F23K1/00 ,  B02C15/04 ,  B02C2015/002 ,  F23K2201/10 ,  F23K2201/30

Abstract: An apparatus for sorting particles composed of a mixture of particles with differing physical and chemical characteristics. The apparatus includes a comminutor, a mechanism for removing particles from the inside of the comminutor which are intermediate in size between the feed to the comminutor and the product of comminution, a mechanism for either discharging particles taken from the comminutor to a reject stream or providing them to a size classification apparatus such as screening, a mechanism for returning the oversize particles to the comminutor or for discharging them to the reject stream, an electric mechanism for separating particles with an electrical force disposed adjacent to a magnet mechanism, a mechanism for providing the particles to the magnet mechanism and the electric mechanism and for providing triboelectric and capacitive charges to the particles, and a mechanism for returning one of the products of electric and magnetic separation to the comminutor while discharging the other to the reject stream. A method for sorting particles composed of a mixture of particles with differing physical and chemical characteristics.

Abstract translation: 用于分选由具有不同物理和化学特性的颗粒的混合物组成的颗粒的装置。 该设备包括分配器，用于从分选机的内部去除颗粒的机构，其尺寸介于分配器的进料和粉碎产物之间的中等尺寸，用于将从粉碎机中取出的颗粒排放到废品流的机构或提供 它们分配到诸如筛分的尺寸分级装置，用于将过大尺寸颗粒返回到粉碎机或将其排放到废品流的机构，用于与靠近磁体机构设置的电力分离颗粒的电机构，用于提供 磁体机构的颗粒和电机构，并且用于向颗粒提供摩擦电容和电容性电荷;以及用于将电和磁分离产物中的一个返回到粉碎机的机构，同时将另一个排放到废品流。 用于分选由具有不同物理和化学特性的颗粒的混合物组成的颗粒的方法。

公开(公告)号：US5603268A

公开(公告)日：1997-02-18

申请号：US280502

申请日：1994-07-26

Applicant: Masaaki Kinoshita ,  Yutaka Iida

Inventor： Masaaki Kinoshita ,  Yutaka Iida

IPC: B02C15/00 ,  B02C25/00 ,  B07B7/083 ,  F23B7/00

CPC classification number: B02C25/00 ,  F23K2201/10

Abstract: A control system of coal pulverizer associated with a rotary classifier, applicable to a pulverized coal burning boiler or the like, includes a function generating section, a computing section, and a rotational speed controlling section. The function generating section receives a signal representing a coal feed rate and outputs signals representing a preset proper range of a current to be fed to the motor of the coal pulverizer for such coal feed rate. The computing section is responsive to a signal representing the current motor current and the signals produced by the function generating section to output a command signal which will maintain the speed of the rotary classifier when the motor current represented by the motor current signal is within the proper range, and to output a command signal which will decrease or increase the speed of the rotary classifier, respectively, in the case where the same motor current has increased or decreased beyond the proper range. The rotational speed controller receives the command signal and regulates the speed of the rotary classifier on the basis of the command signal.

Abstract translation: 适用于粉煤燃烧锅炉等的与旋转分级机相关的煤粉碎机的控制系统包括功能产生部，计算部和转速控制部。 功能生成部接收表示煤供给速度的信号，并输出表示供给给煤粉机的电动机的电流的预设适当范围的信号，用于这样的供煤速率。 计算部分响应于表示当前电动机电流的信号和由功能产生部分产生的信号，以输出指令信号，当由电动机电流信号表示的电动机电流在适当的范围内时将保持旋转分选机的速度 并且在相同电动机电流已经增加或减小超过适当范围的情况下分别输出将分别降低或提高旋转分级器的速度的命令信号。 旋转速度控制器基于命令信号接收命令信号并调节旋转分选机的速度。

公开(公告)号：US5560550A

公开(公告)日：1996-10-01

申请号：US362800

申请日：1994-12-22

Applicant: Paul D. Krawczyk

Inventor： Paul D. Krawczyk

IPC: C10J3/50 ,  F23K1/00 ,  F23K3/02 ,  B02C19/12 ,  B02C23/18

CPC classification number: C10J3/503 ,  C10J3/463 ,  F23K1/00 ,  F23K3/02 ,  C10J2200/15 ,  C10J2300/0906 ,  C10J2300/093 ,  C10J2300/0996 ,  F23K2201/10 ,  F23K2201/30 ,  Y10S241/60

Abstract: A method for feeding a dry pulverized solid material such as coal or limestone into a high pressure combustor is disclosed which employs a high pressure combustor is disclosed which employs a high pressure dry solids pump. The material is first pulverized and transported with air to a separator. The separated solids are temporarily accumulated and fed to one or more dry solids pump which continuously discharge the compact solids at high pressure into a gas mixing chamber. The compact solids are mixed with transport air as a dense phase for transport to the high pressure combustor.

Abstract translation: 公开了一种将干粉碎固体材料如煤或石灰石进料到高压燃烧器中的方法，其采用采用高压干固体泵的高压燃烧器。 该材料首先被粉碎并用空气输送到分离器。 分离的固体暂时积聚并进料到一个或多个干固体泵，其将高压下的致密固体连续排放到气体混合室中。 紧密的固体与输送空气作为致密相混合以输送到高压燃烧器。

公开(公告)号：US5158024A

公开(公告)日：1992-10-27

申请号：US815800

申请日：1992-01-02

Applicant: Shinji Tanaka ,  Tatsuya Miyatake ,  Kazuyoshi Yamamoto ,  Yuichi Miyamoto

Inventor： Shinji Tanaka ,  Tatsuya Miyatake ,  Kazuyoshi Yamamoto ,  Yuichi Miyamoto

IPC: F23C99/00 ,  F23N1/02 ,  F23N5/00 ,  G05B13/02

CPC classification number: F23N5/003 ,  F23N1/022 ,  F23K2201/10 ,  F23N2023/52 ,  F23N2041/18 ,  Y10S706/90

Abstract: This invention relates to a combustion control apparatus for a powdered coal-fired furnace that monitors noxious substances contained within the burning waste gases, unburned substances within the ash and the power data of a pulverizing mill in order to operate the combustion furnace safely and efficiently. The combustion control apparatus infers from the current states or data optimal control amounts that will maintain within the minimum allowable ranges the noxious nitrogen oxides and the in-ash unburned substances that affect the combustion efficiency-and thereby controls the combustion furnace with good stability. The combustion control apparatus qualitatively evaluates as fuzzy quantities the density data of the nitrogen oxides contained within the exhaust gases of the unburned substances contained within the ash, and the power data of the pulverizing mill. Based upon the evaluation results a fuzzy inference is formed so as to determine the optimum control amount of the two-stage combustion air ratio for minimizing the nitrogen oxides and also the optimum control amount for the fine/coarse gain separator so as to extract powdered coal of a grain size most effective for minimizing the unburned substances within the ash.

公开(公告)号：US5095827A

公开(公告)日：1992-03-17

申请号：US664638

申请日：1991-03-05

Applicant: Robert M. Williams

Inventor： Robert M. Williams

IPC: F23C10/22 ,  B09B3/00 ,  F22B1/02 ,  F23G5/033 ,  F23K1/00 ,  F23K1/04 ,  F23K3/02

CPC classification number: F23K1/00 ,  F23K2201/10

Abstract: Apparatus for preparing in a circulating fluid bed boiler fuel material that is fed to the boiler with a moisture content that is normally high enough to plug grinding apparatus needed to grind the fuel material to a particulate size for combustion, operating the boiler and grinding apparatus in cooperation so that heat energy at a high temperature is borrowed from the boiler for drying the fuel material at the grinding apparatus and returning the heat energy in the form of steam so there is no net loss of heat energy. The system provides that hot gases discharged from the boiler are fed into the grinding apparatus for drying the incoming moisture containing fuel material before it is conveyed to the boiler as a fuel, and controlling the boiler and grinding apparatus, with or without sorbent, so that the boiler fuel demand is independent of the quantity of fuel material in the grinding apparatus and the rate of grinding of the fuel material is maintained at a predetermined pressure differential in the grinding apparatus.

Abstract translation: 用于在循环流化床锅炉燃料中制备的装置，其中所述循环流化床锅炉燃料材料以通常足够高的水分含量供给到锅炉，以将用于将燃料材料研磨至用于燃烧的颗粒尺寸所需的研磨装置，将锅炉和研磨装置操作 合作，使得从锅炉借用高温热能来干燥研磨装置上的燃料，并以蒸汽的形式返回热能，因此不存在热能的净损失。 该系统提供从锅炉排出的热气体被输送到研磨装置中，用于干燥进入的含水燃料材料，然后作为燃料输送到锅炉，并且控制具有或不具有吸附剂的锅炉和研磨装置，使得 锅炉燃料需求与研磨装置中的燃料材料的数量无关，燃料的磨削速度在研磨装置中保持在预定的压力差。

公开(公告)号：US4915306A

公开(公告)日：1990-04-10

申请号：US323578

申请日：1989-03-14

Applicant: William J. Peet

Inventor： William J. Peet

IPC: F23K1/00 ,  F23N1/02

CPC classification number: F23N1/02 ,  F23K1/00 ,  F23K2201/10 ,  F23N2021/10 ,  F23N2039/02

Abstract: A method of controlling the operation of a pulverizer includes detecting the type of fuel being supplied to the pulverizer. At least one characteristic of the fuel is determined by a combination of measurements and calculations. One characteristic is moisture content which distinguishes one type of fuel, in particular, one type of coal, from another. The feeding rate of the fuel to the pulverizer is selected from a curve which plots primary air flow against percentage of rating for the pulverizer. This curve is constant for the pulverizer despite the types of fuel used.

Abstract translation: 一种控制粉碎机操作的方法包括检测供应给粉碎机的燃料类型。 燃料的至少一个特性由测量和计算的组合确定。 一个特征是将一种类型的燃料，特别是一种类型的煤与另一种类型的煤区分开来。 燃料对粉碎机的进料速率选自曲线，该曲线绘制了主要空气流量与粉碎机的额定值百分比。 即使使用燃料类型，该曲线对于粉碎机是恒定的。

公开(公告)号：US4754931A

公开(公告)日：1988-07-05

申请号：US914413

申请日：1986-10-02

Applicant: George F. Shulof ,  Michael J. DiMonte

Inventor： George F. Shulof ,  Michael J. DiMonte

IPC: B02C15/00 ,  B02C25/00

CPC classification number: B02C25/00 ,  B02C15/00 ,  F23K2201/10

Abstract: A control system (40) particularly suited for effecting control over the fineness of the particles that are gound, i.e., pulverized, in a bowl mill (10) of the type that is designed to be employed for purposes of pulverizing coal. The subject control system (40) is operatively connected in circuit relation with the conveying means (64) by means of which the particles are conveyed from the bowl mill (10) after being ground therewithin. In addition, the subject control system (40) is also operatively connected with the controls (58, 60) of the bowl mill (10). Accordingly, the subject control system (40) is operative to make measurements of the particles being discharged from the bowl mill (10) and based on the information obtained from such measurements effect the changes in the control settings of the bowl mill (10) as required.

Abstract translation: 一种控制系统（40），特别适用于在设计用于粉碎煤的类型的碗式粉碎机（10）中实现对粉碎的颗粒的细度的控制。 主体控制系统（40）以与输送装置（64）的电路关系可操作地连接，通过该传送装置，颗粒在被研磨之后从碗式磨机（10）传送。 另外，主体控制系统（40）也可操作地与碗式磨机（10）的控制器（58,60）连接。 因此，所述对象控制系统（40）可操作以对从碗式磨机（10）排出的颗粒进行测量，并且基于从这种测量获得的信息将碗式粉碎机（10）的控制设置的变化作为 需要。

公开(公告)号：US4641788A

公开(公告)日：1987-02-10

申请号：US672067

申请日：1984-11-16

Applicant: Robert M. Williams

Inventor： Robert M. Williams

IPC: F23K1/00 ,  B02C19/12

CPC classification number: B02C19/0056 ,  F23K1/00 ,  F23K2201/10

Abstract: Apparatus for simultaneously grinding coal and dolomite to a size suitable for fluid bed combustors in which the grinding mill is modified to allow for the formation in the mill of a bed of the mixed coal and dolomite which reduces the tendency of dolomite to fracture and produce excess of fine particles thereby optimizing the grinding conditions for both coal and dolomite, and a method of reducing coal and dolomite simultaneously in a common mill and in predetermined proportions for optimum reduction of each material.

Abstract translation: 用于同时研磨煤和白云石至适合于流化床燃烧器的尺寸的装置，其中研磨机被修改以允许在混合煤和白云石的床的磨机中形成，这降低了白云石的断裂和产生过量的倾向 的细颗粒，从而优化煤和白云石的研磨条件，以及在普通研磨机中同时还原预定比例的煤和白云石的方法，以最佳地还原每种材料。

公开(公告)号：US4630554A

公开(公告)日：1986-12-23

申请号：US709887

申请日：1985-03-08

Applicant: William H. Sayler ,  Justin C. White

Inventor： William H. Sayler ,  Justin C. White

IPC: B02C13/18 ,  F23D1/00 ,  F23K1/00 ,  F23K3/02 ,  F23D1/02

CPC classification number: B02C13/18 ,  F23D1/00 ,  F23K1/00 ,  F23K3/02 ,  F23K2201/10

Abstract: A solid fuel burner especially useful in a system for pulverizing and burning solid fuel, such as coal or other fossil fuel, that is characterized by a possible turndown ratio of up to at least fifteen to one. The burner includes a valved firing nozzle having a firing conduit with firing orifice and internal turbulating means for a mixture of primary air and pulverized solid fuel, and a controlled secondary air supply. A movable valve element, preferably in the form of a double-taper-ended diffuser positioned downstream from the firing orifice, controls the outflow of a turbulent stream of the mxied primary air and fuel from the firing orifice into an ignition chamber and controls flame shape.

Abstract translation: 特别适用于用于粉碎和燃烧诸如煤或其它化石燃料的固体燃料的系统的固体燃料燃烧器，其特征在于可能的调节比高达至少十五比一。 该燃烧器包括一个具有喷射孔的燃烧导管和一个用于一次空气和粉碎的固体燃料的混合物的内部紊流装置和一个受控的二次空气供应的点火喷嘴。 优选地形成位于喷射孔下游的双锥形扩散器形式的可移动阀元件控制来自喷射孔的混合的一次空气和燃料的湍流流入点火室并控制火焰形状 。

公开(公告)号：US4478371A

公开(公告)日：1984-10-23

申请号：US337586

申请日：1982-01-07

Applicant: Robert M. Williams

Inventor： Robert M. Williams

IPC: B02C21/00 ,  B02C15/00 ,  B02C15/02 ,  B02C25/00 ,  F23K1/00 ,  B02C23/24

CPC classification number: B02C15/02 ,  B02C25/00 ,  F23K1/00 ,  B02C2015/002 ,  F23K2201/10

Abstract: Apparatus for preparing fuel for delivery to a boiler or place where it is burned in which a grinding mill and a particle sizing classifier are operated to deliver fuel of a substantially uniform size, and means to operate the mill and classifier independently of the rate of supply of the fuel but in response to the differential pressure of the fluid bed depth in the mill. 7

Abstract translation: 用于制备用于输送到其燃烧的锅炉或其中的燃料的设备，其中操作研磨机和颗粒施胶分级器以输送基本均匀尺寸的燃料，以及独立于供给速率操作磨机和分级器的装置 的燃料，但是响应于轧机中流化床深度的压差。