公开(公告)号：US4129262A

公开(公告)日：1978-12-12

申请号：US823958

申请日：1977-08-12

申请人： John A. Lowry

发明人： John A. Lowry

IPC分类号： B02C13/28

CPC分类号： B02C13/28

摘要： A hammer is provided for pulverizing and comminutating apparatus of the hammer mill-type with this hammer including both tearing and shearing edges for enhanced effectiveness in obtaining size reduction of both friable and non-friable materials. This pulverizer hammer includes a relatively narrow tearing edge which is disposed in spaced parallel relationship to the pivot bearing of the hammer. A side edge surface of the hammer associated with that tearing edge is formed in arcuately curved, receding relationship thereto for directing and urging particles of waste material radially outward toward the tearing edge where they will be subjected to further pulverizing action. A shearing edge is also formed along one corner of the side edge surface of the hammer and extends radially in receding relationship to the tearing edge. The arculately curved and contoured surface is also configured to extend in receding relationship with respect to the shearing edge. Both the tearing and shearing edges are preferably provided with a replaceable hard surface coat to substantially extend the operational life. The hammer is also formed with two pivot bearings and four sets of tearing and shearing edges to permit reversible mounting of the hammer as to both end-to-end relationship and as to opposite side edge surface relationship thereby providing four material contacting faces to further extend the effective operational time period before replacement may be required of the hardened surface contact faces.

摘要翻译： 提供了一种用于粉碎和粉碎锤式粉碎机的锤子，该锤子包括撕裂和剪切边缘，用于提高易碎和不易碎材料的尺寸减小的有效性。 该粉碎锤包括相对窄的撕裂边缘，其与锤的枢转轴承间隔成平行关系。 与该撕裂边缘相关联的锤的侧边缘表面形成为弧形弯曲的后退关系，用于将废料颗粒径向向外朝着撕裂边缘引导和推动，在那里它们将被进一步粉碎作用。 剪切边缘还沿着锤的侧边缘表面的一个角形成并且以与后撕边缘的后退关系径向延伸。 弯曲和弯曲的曲面也被构造成相对于剪切边缘以后退关系延伸。 撕裂和剪切边缘优选地设置有可更换的硬表面涂层，以大致延长使用寿命。 锤子还形成有两个枢转轴承和四组撕裂和剪切边缘，以允许锤的可逆安装以及端对端关系以及相反的侧边缘表面关系，从而提供四个材料接触面以进一步延伸 硬化表面接触面可能需要更换前的有效操作时间。

公开(公告)号：US4670142A

公开(公告)日：1987-06-02

申请号：US431785

申请日：1982-09-30

申请人： John A. Lowry

发明人： John A. Lowry

IPC分类号： B01D21/00 ,  B03B5/48 ,  B03B5/62 ,  B01D23/00

CPC分类号： B03B5/623 ,  B01D21/0018 ,  B01D21/0042 ,  B01D21/04 ,  B01D21/2405 ,  B01D21/2455 ,  B01D21/34 ,  B03B5/48

摘要： An aerated grit tank is provided having a longitudinally extending control wall dividing the tank into parallel lift and settling chambers. An air discharge apparatus is provided at the bottom of the lift chamber to induce an upward flow of sewage causing a generally helical flow of sewage around the control wall. The control wall is supported in the tank by mechanisms selectively operable to vertically position the wall with a bottom longitudinally extending edge in predetermined spaced relationship to a bottom floor of the tank whereby the velocity of the cross currents may be effectively controlled. One form of the structure has a single control wall unit while a second form of the invention has two wall forming panels with an uppermost panel supported in fixed relationship to the tank and a lowermost panel supported for vertical displacement.

摘要翻译： 提供了一种充气砂粒槽，其具有纵向延伸的控制壁，将罐分解成平行的提升和沉降室。 在提升室的底部设置有排气装置，以引起污水的向上流动，从而导致围绕控制壁的大致螺旋状的污水流。 控制壁通过选择性地可操作的机构被支撑，该机构可以以与槽底部预定间隔开的底部纵向延伸的边缘垂直定位壁，由此可以有效地控制交叉电流的速度。 该结构的一种形式具有单个控制壁单元，而本发明的第二形式具有两个壁形成面板，其中最上面的面板以与罐相关的方式被固定，并且支撑用于垂直位移的最下面的面板。