US2128468A - End liner for grinding mills - Google Patents

End liner for grinding mills Download PDF

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Publication number
US2128468A
US2128468A US39762A US3976235A US2128468A US 2128468 A US2128468 A US 2128468A US 39762 A US39762 A US 39762A US 3976235 A US3976235 A US 3976235A US 2128468 A US2128468 A US 2128468A
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US
United States
Prior art keywords
abutment
liners
liner
head
sections
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US39762A
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English (en)
Inventor
Starks L Miller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AMERICAN BALL MILL Co
AMERICAN BALL-MILL Co
Original Assignee
AMERICAN BALL MILL Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AMERICAN BALL MILL Co filed Critical AMERICAN BALL MILL Co
Priority to US39762A priority Critical patent/US2128468A/en
Priority to DEA79240D priority patent/DE662518C/de
Priority to DK54324D priority patent/DK54324C/da
Priority to GB13077/36A priority patent/GB461726A/en
Priority to GB13078/36A priority patent/GB464007A/en
Application granted granted Critical
Publication of US2128468A publication Critical patent/US2128468A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/02—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with perforated container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/22—Lining for containers

Definitions

  • This invention relates to improvements in grinding mills of the type employed in grinding ores and the like, which employ attrition bodies such as balls or rods.
  • the invention relates more particularly to the construction of the end liners and the means for securing them in place.
  • the principal object of this invention is to provide sectional end liners, throat rings and ballretainers that are individually removable without disturbing the other sections.
  • Anotherobject is to provide a simple means for holding the sections in place and which can be readily released for the purpose of permitting the removal of the sections.
  • a further object is to provide means for securing sectional end liners, ball-retainers and throat rings in place in a grinding mill by the employment of radially acting forces.
  • Figure 2 is a section taken on line'2'2, Figure 1, looking toward the discharge end of the mill;
  • Figure 3 is a section taken on line 3-3, Figure 1, looking toward the'intake trunnion or the-feed end of the mill;
  • Figure 4 is a View, partly in section'and partly in elevation, looking in the direction of arrow 4',
  • FIG. 5 is a section taken on line 5-'5, Figure 4;
  • Figure 6 is .a section taken. on line 6--6, Figure'5;
  • Figure 7 is a section taken on line 'l'l; Figure 5;
  • Figure 8 is a section taken online 88, Figure 9;
  • Figure 9 is a section taken online 99, Fig ure 8;
  • Figure 10 is a section taken on line I il-lli, Figure 9;
  • Figure 11 is a section, taken on line 'lZ-IZ, Figure 12;
  • Figure 12 is a section, taken on line H-Ii, Figure 11;
  • Figure 13 is a section taken on line I3l3, Figure 11.
  • reference numeral 5 designates the shell
  • numerals 6 and l the heads at the intake and the discharge end respectively
  • numerals 8 and 9 designate respectively the intake and the discharge trunnions.
  • the trunnions are mounted for rotation in bearings Ill 5 carried on suitable supports ll.
  • Located within the shell are a number of channelled girders I2, arranged in spaced parallel relation with the web toward the inside and the edges of the flanges in contact with the shell.
  • Liner sections l3 are 1
  • abutments I5 are secured to the inner surfaces of the heads.
  • the abutments may be rings, which are secured in place by welding or by bolts or rivets, or they may be formed from a number of separate sections secured in place by similar means.
  • a sectional throat ring is provided, which con sists of a plurality of sections 16.
  • the throat ring is formed from four sectors each of 90 angular extent.
  • the outer surface of each sector i6 is provided with an outwardly facing beveled shoulder which is so positioned that it will engage the inside of the abutments in the manner shown most clearly in Figure 9.
  • the radial surfaces of the sectors [6 are provided with curved tapering grooves for the reception of curved wedges l8 whose wider ends are toward the inside as shown most clearly in Figure 8.
  • the sectors l6 are of such size that theycan be put into position and then moved radially until the shoulders I? engage the cooperating beveled shoulders of the abutments. After the blocks or sectors l6 are properly positioned, the wedges l8 are inserted and driven home until the pressure of the shoulders I! against the abutments is sufiicient to hold the sectors in place.
  • a sectional ball-retainer is positioned and held in place by means substantially identical with that employed with the throat ring.
  • the ballretainer has been shown as comprising four sector-shaped parts IQ of a transverse section-like that illustrated in Figure 5. Each part I9 has an outwardly directed shoulder I! while adjacent radial sides have curved tapered grooves for the reception of the wedges I8.
  • An elongated wedge 25 is secured transversely of each girder and serves as an abutment for the straight end walls b and c of adjacent sections 24.
  • the opposing sides of adjacent sections are provided with tapering arcuate grooves for the reception of the curved tapering wedges I8.
  • the heads 5 and I are provided with pockets 38 as illustrated in Figures 5, '7, 9 and 10.
  • the liner sections 24, 23a and 2% have flanges 3
  • the liners of head 6 are each formed from two parts 24a and 2%, which together equal one liner 24.
  • the abutment or abutnients Ida have both the inner and outer edges beveled, in the manner shown in Figure 9, and the girders have wedges 25 secured thereto the same as in Figure 4.
  • the bottom side of section 24a and the top of section 24b are provided with cooperating curved tapering grooves for the reception of a curved wedge I8 which serves to force the inner end of section 24a against the outer edge of the abutments [a and the outer end of section 241) against the wedge 25.
  • FIGS 11, 12 and 13 another way of securing the liners in position has been shown.
  • the abutment I5a has been illustrated as a ring having both its inner and its outer edges beveled.
  • This ring is secured to the head in any suitable way and instead of being a continuous ring as shown, may be formed from a plurality of segments.
  • each liner section 24d is provided with a curved tapering groove for the reception of a correspondingly curved tapered wedge I8b which is positioned between the lug 26 and the inside of the head.
  • the wedge I8b is somewhat conical, and the groove in section 2401 is similarly inclined with the result that when the wedge is driven home the resultant force will be along line 0-band tends to force the sections against the inside of the head.
  • liners and liner sections will be employed in a sense broad enough to include the throat ring and grate sections as well as the other liner sections, as the several kinds of liners are all secured in place in the same way.
  • the abutments may be rings or a plurality of separate sections arranged in the form of a circle and therefore whenever the expression annular abutment or ring abutment is used, it is to be understood as including the equivalent thereof.
  • a shell In a grinding mill, a shell, a head at an end thereof, an abutment on the head, the abutment having an undercut shoulder, a girder on the shell, a lug on the girder spaced from an end thereof, a liner positioned between the girder and the abutment, the liner having a beveled shoulder for engaging the undercut shoulder on the abutment, there being a groove in the liner, and a spreader positioned in the groove and engaging the girder between the lug and the head for producing a force urging the shoulders into engagement.
  • a grinding mill having a shell, a head at an end thereof, the head having a trunnion, liners for the head, comprising a central portion formed from several parts, each part having a portion extending into the trunnion and another portion projecting over the surface of the head immediately surrounding the trunnion, an abutment 1 von the head adjacent the trunnion, having its inner edge undercut, the liners having outwardly facing shoulders inclined to fit the shoulder on the abutment, means for expandingthe liner assembly to force the shoulders thereof into interlocking engagement with the shoulder on the abutment, a second abutment means positioned adjacent the periphery of the head, the inner edge of the outer abutment means being undercut, a plurality of liners positioned between the two abutments and provided with outwardly directed shoulders shaped to engage the undercut shoulder on the last-mentioned abutment, and means for expanding the liner assembly to secure interlocking engagement between the shoulders.
  • a grinding mill having a substantially cylindrical shell, a head for closing one end thereof, the head having a tubular trunnion, liners for the inside of the head, the liner comprising a central portion formed from several sector-shaped parts, each part having a portion extending into the trunnion and another portion projecting over the surface of the head immediately surrounding the trunnion, an annular abutment attached to the inner surface of the head in concentric arrangement with the trunnion, the abutment having both its inner and its outer edges beveled and undercut, the liners having outwardly facing shoulders inclined to fit the shoulder on the inside of the abutment, means for expanding the liners to increase its diameter and force the shoulders thereof into interlocking engagement with the inner shoulder on the abutment, a second abutment means positioned adjacent the periphery of the head and spaced from the first abutment, the inner edge of the outer abutment means being beveled and undercut, a plurality of two

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
US39762A 1935-09-09 1935-09-09 End liner for grinding mills Expired - Lifetime US2128468A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US39762A US2128468A (en) 1935-09-09 1935-09-09 End liner for grinding mills
DEA79240D DE662518C (de) 1935-09-09 1936-04-29 Trommelmuehle
DK54324D DK54324C (da) 1935-09-09 1936-05-06 Tromlemølle.
GB13077/36A GB461726A (en) 1935-09-09 1936-05-08 End liners for grinding mills
GB13078/36A GB464007A (en) 1935-09-09 1936-05-08 Discharge for grinding mills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US39762A US2128468A (en) 1935-09-09 1935-09-09 End liner for grinding mills

Publications (1)

Publication Number Publication Date
US2128468A true US2128468A (en) 1938-08-30

Family

ID=21907221

Family Applications (1)

Application Number Title Priority Date Filing Date
US39762A Expired - Lifetime US2128468A (en) 1935-09-09 1935-09-09 End liner for grinding mills

Country Status (4)

Country Link
US (1) US2128468A (de)
DE (1) DE662518C (de)
DK (1) DK54324C (de)
GB (2) GB464007A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2455012A (en) * 1944-05-17 1948-11-30 Frederick H King Marble game
DE1221537B (de) * 1962-11-10 1966-07-21 Beteiligungs & Patentverw Gmbh Trommel- oder Rohrmuehle
US5472148A (en) * 1992-01-10 1995-12-05 Envirotech Pumpsystems, Inc. Grinding mill, lining and associated method of manufacture
CN104923353A (zh) * 2015-06-30 2015-09-23 浙江中技桩业有限公司 格子型球磨机
CN107737644A (zh) * 2017-11-13 2018-02-27 盐城吉达环保设备有限公司 一种球磨机篦缝自清洗装置
CN117983371A (zh) * 2024-04-03 2024-05-07 隆化县新村矿业有限公司 一种从尾矿中回收极低品位铜矿物的选矿设备及方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE924964C (de) * 1949-08-03 1955-03-10 David Weston Trommelmuehle zum Zerkleinern von Hartgut

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2455012A (en) * 1944-05-17 1948-11-30 Frederick H King Marble game
DE1221537B (de) * 1962-11-10 1966-07-21 Beteiligungs & Patentverw Gmbh Trommel- oder Rohrmuehle
US5472148A (en) * 1992-01-10 1995-12-05 Envirotech Pumpsystems, Inc. Grinding mill, lining and associated method of manufacture
CN104923353A (zh) * 2015-06-30 2015-09-23 浙江中技桩业有限公司 格子型球磨机
CN107737644A (zh) * 2017-11-13 2018-02-27 盐城吉达环保设备有限公司 一种球磨机篦缝自清洗装置
CN107737644B (zh) * 2017-11-13 2023-08-08 盐城吉达环保设备有限公司 一种球磨机篦缝自清洗装置
CN117983371A (zh) * 2024-04-03 2024-05-07 隆化县新村矿业有限公司 一种从尾矿中回收极低品位铜矿物的选矿设备及方法

Also Published As

Publication number Publication date
GB464007A (en) 1937-04-09
GB461726A (en) 1937-02-23
DK54324C (da) 1938-02-14
DE662518C (de) 1938-07-20

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