WO2006026894A1 - A pressing machine with combined frame - Google Patents

A pressing machine with combined frame Download PDF

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Publication number
WO2006026894A1
WO2006026894A1 PCT/CN2004/001071 CN2004001071W WO2006026894A1 WO 2006026894 A1 WO2006026894 A1 WO 2006026894A1 CN 2004001071 W CN2004001071 W CN 2004001071W WO 2006026894 A1 WO2006026894 A1 WO 2006026894A1
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WIPO (PCT)
Prior art keywords
frame
column
roller press
combined
pin
Prior art date
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PCT/CN2004/001071
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French (fr)
Chinese (zh)
Inventor
Yamin He
Yong Wei
Original Assignee
Yamin He
Yong Wei
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Publication date
Application filed by Yamin He, Yong Wei filed Critical Yamin He
Publication of WO2006026894A1 publication Critical patent/WO2006026894A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
    • B30B3/04—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs co-operating with one another, e.g. with co-operating cones

Definitions

  • the present invention relates to a grinding device based on a bed pulverization principle used in a building material such as a cement preparation industry, and more particularly to a combined frame roller press. Background technique
  • Material grinding plays a very important role in the building materials industry, and the material bed with high energy utilization rate is broken.
  • the principle has been widely used in practice in recent years.
  • the roller press uses a large force exerted on the roller by the hydraulic cylinder to continuously squeeze the material that is continuously clamped between the two oppositely rotating rollers, so that the material forms a bed under the compressive stress of 70 ⁇ : l OOMPa. Crushing energy efficient equipment.
  • the extrusion force of the medium and large size roller press reaches several hundred tons or even one or two thousand tons.
  • the frame is subjected to the lateral load equal to the pressing force. High structural strength and stiffness.
  • the beams and columns of the conventional roller press frame are generally fabricated by welding structural members.
  • the cross-section of the beam and the column joints are pierced with round holes and the cylindrical pins are pinned, and the joint faces are tightened with high-strength bolts.
  • the diameter of the riding pin of the structure is generally not larger than the thickness of the joint steel plate, otherwise the riding hole will seriously weaken the strength of the joint steel plate.
  • the roller press is in normal working condition, and about 1/4 of the cylindrical surface of the beam, the column and the cylindrical pin are under great pressure, and the bolt is subjected to a large tension to balance the vertical component of each pressure.
  • the thickness of the steel plate available on the market generally does not exceed 150 mm.
  • the frame is not suitable for large-size roller presses.
  • the traditional roller press with a staking pin frame because the joint surface must be in close contact, only the upper frame and the column are completely removed to remove the roller system, and the large bolt disassembly is also very troublesome, so the on-site inspection is very inconvenient. Summary of the invention
  • the invention aims to solve the problem that the existing roller press frame is processed by the welded structural members of the beam and the column, and the round hole of the beam and the column joint surface is matched with the riding cylindrical pin, and the joint surface is tightened by the high-strength large bolt. Structural form, and the existing rack load capacity is not large enough and therefore not suitable
  • the large-size roller press and the trouble of disassembly and assembly during on-site inspection provide a combined frame roller press with high frame strength, good rigidity, simple manufacture and convenient assembly and disassembly.
  • the technical solution adopted by the present invention is as follows:
  • a combined frame roller press comprising a frame, a roller system and a driving device thereof, wherein: the frame comprises an upper beam, a lower beam, a column carrying a pressing force, the column and the upper beam,
  • the lower beam is hinged.
  • the upper beam and the lower beam are respectively two, and the column is four.
  • the end portions are provided with pin holes, and a pair of columns and a pair of beams are hinged by a bearing pin to form a bearing frame, two upper longitudinal beams and Two lower longitudinal beams connect the two frames together.
  • the beam and the column of the frame adopt a combined structure, and the components constituting the beam and the column are machined by the thick steel plate after non-destructive testing, and are threadedly coupled.
  • the column structure uses a combined structure comprising two opposing main steel plates and a connecting member perpendicular to the main steel plate embedded therein, the connecting member being screwed to the main steel plate.
  • the beam at the hinge of the column is clamped in the gap between the two main plates of the column, and the bearing pin passes through the through pin hole.
  • FIG. 1 is a schematic view showing the structure of a front view of the present invention
  • Figure 2 is a schematic plan view of the top view of the present invention (where the upper end beam represents the internal structure and the lower end beam represents the surface structure);
  • Figure 3 is a schematic view of the left side structure. detailed description
  • the novel roller press is composed of a combined frame, a roller system and a driving device thereof, a feeding device, a hydraulic cylinder 8 and the like, and applies a large force to the roller 9 by using four hydraulic cylinders 8, and two rollers for rotating the two opposite phases.
  • the continuously clamped material 10 is subjected to continuous extrusion to form a material bed under the action of a high extrusion stress of 70 to 100 MPa, and the product is a cake containing a large amount of fine powder. It replaces the traditional welded frame with a combined frame, and the hinged pin and bolt connection are replaced by hinges between the frame parts.
  • the specific structure is shown in the attached figure.
  • the upper cross member 1, the lower cross member 2 and the upright column 3 are the main bearing members of the roller press frame of the present invention, and both ends have pin holes, and 8 bearing pins are connected to each other. 4.
  • Two bearing frames are hinged to each other. The force is balanced inside the frame, and the two upper longitudinal beams 5 and the two lower longitudinal beams 6 connect the two frames into a stable whole.
  • the main bearing members such as the beam 1, 2 and the column 3 of the frame are combined.
  • the parts constituting these parts are machined by thick steel plate after non-destructive testing, and then the parts are assembled into corresponding parts by means of thread connection. Parts.
  • the column 3 may be formed by two opposing main steel plates and a connecting member 7 perpendicular to the main steel plate embedded therein, and the beam at the hinge of the column is clamped in the gap between the two main plates of the column, and the bearing pin 4 is penetrated. Pass through the pin hole.
  • the components of the roller press frame are extremely stressed. Since the weight of each component is much smaller than the pressing force, it can be neglected, then the upper and lower beams are the tensioned two-force bar, the column 3 is the simply supported beam with the load close to the fulcrum, and the bearing pin 4 is sheared by the symmetric shear force. pin. Due to the reasonable force and strong carrying capacity of the frame, it is an ideal structural form of the large-scale high-performance roller press. N2004/001071
  • the manufacturing quality of the roller press is easier to guarantee.
  • the components of the combined frame bearing component are machined by thick steel plate after non-destructive testing. There are no welding defects and residual internal stress, and the component size and mechanical properties are easily guaranteed, which makes the mechanical properties of the frame very Stable, it is conducive to long-term reliable operation of the roller press.
  • the roller press is easy to assemble and disassemble. When assembling on site, insert the bearing pin 4 to connect the bearing frame, and the assembly quality is easy to guarantee. When repairing, just remove the four bearing pins 4 and lay the column flat to remove the roller from the frame. Pulling out inside, maintenance is extremely convenient.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Crushing And Grinding (AREA)

Abstract

The present invention relates to a pressing machine with combined frame. The combined frame of the pressing machine includes a frame, a series of rollers and a driving device. Said frame includes an up crossbeam a down crossbeam and a vertical shaft. Said vertical shaft and said up and down crossbeam are hinged into a supported frame by a pin. Said crossbeams and said vertical shaft are all assembled into combined construct by screw joint respectively.

Description

组合式机架辊压机 技术领域  Combined frame roller press
本发明涉及一种应用在建材如水泥制备行业使用的基于料床粉碎原 理的粉磨设备， 具体涉及组合式机架辊压机。 背景技术  The present invention relates to a grinding device based on a bed pulverization principle used in a building material such as a cement preparation industry, and more particularly to a combined frame roller press. Background technique
物料粉磨在建材行业占有非常重要的地位， 能量利用率高的料床粉 碎.原理近年在实践中得到广泛运用。 辊压机是利用液压油缸施加在辊子 上的巨大作用力，对两相向旋转的辊子间不断钳入的物料实施连续挤压， 使物料在 70〜： l OOMPa的挤压应力作用下形成料床粉碎的高效节能设备。 随着近年粉磨技术的发展， 辊压机日益大型化， 中大规格辊压机挤 压力达几百吨甚至一两千吨， 其机架受到与挤压力相等的横向载荷， 必 须有很高的结构强度和刚度。 传统辊压机机架的横梁和立柱一般采用焊 接结构件加工而成， 横梁和立柱接合面镗骑缝圆孔配骑缝圆柱销， 并用 高强度大螺栓将接合面拉紧。 该结构的骑缝销直径一般不大于接合面钢 板厚度， 否则骑缝孔将严重削弱结合面钢板强度。 从受力分析可知， 辊 压机正常工作状态，横梁、立柱和圆柱销各约 1/4圆柱面受很大的压力， 螺栓受很大的张紧力来平衡各压力的垂直分力。 由于制作焊接结构件的 钢板厚度有限， 市场上能买到的钢板厚度一般不超过 150mm， 钢板厚度 - 限制了承力的骑缝销直径， 使得这种结构的承载能力非常有限， 所以这 种骑缝销机架不适宜大规格辊压机。 另一方面， 采用骑缝销机架的传统 辊压机， 由于接合面必须紧密接触， 只有将上机架和立柱全部拆下才能 移出辊系， 而大螺栓拆装也十分麻烦， 所以现场检修很不方便。 发明内容  Material grinding plays a very important role in the building materials industry, and the material bed with high energy utilization rate is broken. The principle has been widely used in practice in recent years. The roller press uses a large force exerted on the roller by the hydraulic cylinder to continuously squeeze the material that is continuously clamped between the two oppositely rotating rollers, so that the material forms a bed under the compressive stress of 70~: l OOMPa. Crushing energy efficient equipment. With the development of grinding technology in recent years, the roller press is becoming larger and larger. The extrusion force of the medium and large size roller press reaches several hundred tons or even one or two thousand tons. The frame is subjected to the lateral load equal to the pressing force. High structural strength and stiffness. The beams and columns of the conventional roller press frame are generally fabricated by welding structural members. The cross-section of the beam and the column joints are pierced with round holes and the cylindrical pins are pinned, and the joint faces are tightened with high-strength bolts. The diameter of the riding pin of the structure is generally not larger than the thickness of the joint steel plate, otherwise the riding hole will seriously weaken the strength of the joint steel plate. According to the force analysis, the roller press is in normal working condition, and about 1/4 of the cylindrical surface of the beam, the column and the cylindrical pin are under great pressure, and the bolt is subjected to a large tension to balance the vertical component of each pressure. Due to the limited thickness of the steel plate for the production of welded structural parts, the thickness of the steel plate available on the market generally does not exceed 150 mm. The thickness of the steel plate - the diameter of the riding pin which limits the bearing force, makes the bearing capacity of this structure very limited, so the riding pin machine The frame is not suitable for large-size roller presses. On the other hand, the traditional roller press with a staking pin frame, because the joint surface must be in close contact, only the upper frame and the column are completely removed to remove the roller system, and the large bolt disassembly is also very troublesome, so the on-site inspection is very inconvenient. Summary of the invention
本发明旨在针对现有辊压机机架因横梁和立柱采用焊接结构件加工 而成， 在横梁和立柱接合面镗骑缝圆孔配骑缝圆柱销， 并用高强度大螺 栓将接合面拉紧的结构形式， 而存在的机架承载能力不够大因而不适宜 大规格辊压机、 现场检修时拆装麻烦的缺陷， 提供一种机架强度高、 刚 性好、 制造简单、 装拆方便的组合式机架辊压机。 为实现上述目的， 本发明所采用的技术方案如下： The invention aims to solve the problem that the existing roller press frame is processed by the welded structural members of the beam and the column, and the round hole of the beam and the column joint surface is matched with the riding cylindrical pin, and the joint surface is tightened by the high-strength large bolt. Structural form, and the existing rack load capacity is not large enough and therefore not suitable The large-size roller press and the trouble of disassembly and assembly during on-site inspection provide a combined frame roller press with high frame strength, good rigidity, simple manufacture and convenient assembly and disassembly. In order to achieve the above object, the technical solution adopted by the present invention is as follows:
一种组合式机架辊压机， 包括机架、 辊系及其驱动装置， 其特征在 于： 所述机架包括上横梁、 下横梁、 承载挤压力的立柱， 所述立柱与上 横梁、 下横梁铰接。 所述上横梁、 下横梁各两根， 立柱四个， 其端部均设销孔， 一对立 柱与一对横梁之间由四个承力销铰接为一个承力框架， 两根上纵梁和两 根下纵梁将两个框架连成一个整体。 所述机架的横梁和立柱采用组合式结构， 构成横梁和立柱的各部件 由厚钢板经无损探伤后机加工而成， 并以螺纹方式联接。 所述立柱釆用组合式结构， 包括两块对立的主体钢板和垂直于主体 钢板嵌于其中的连接件， 所述连接件与主体钢板螺纹连接。 与立柱铰接处横梁夹持于立柱两主体钢板间隙内， 承力销从贯通的 销孔中穿过。 本发明由于采用上述结构， 使其具有如下优点：  A combined frame roller press, comprising a frame, a roller system and a driving device thereof, wherein: the frame comprises an upper beam, a lower beam, a column carrying a pressing force, the column and the upper beam, The lower beam is hinged. The upper beam and the lower beam are respectively two, and the column is four. The end portions are provided with pin holes, and a pair of columns and a pair of beams are hinged by a bearing pin to form a bearing frame, two upper longitudinal beams and Two lower longitudinal beams connect the two frames together. The beam and the column of the frame adopt a combined structure, and the components constituting the beam and the column are machined by the thick steel plate after non-destructive testing, and are threadedly coupled. The column structure uses a combined structure comprising two opposing main steel plates and a connecting member perpendicular to the main steel plate embedded therein, the connecting member being screwed to the main steel plate. The beam at the hinge of the column is clamped in the gap between the two main plates of the column, and the bearing pin passes through the through pin hole. The present invention has the following advantages due to the above structure:
受力合理， 机架承载能力极强， 是大规格髙性能的辊压机的一种理 想的结构形式； 而且是一种机架强度高、 刚性好、 制造简单、 装拆方便 的组合式机架辊压机。 无焊接缺陷和残余焊接内应力， 构件尺寸和机械性能都容易保证， 这使得机架的力学性能非常稳定， 有利于辊压机长期可靠运转。. 拆卸方便、 装配质量容易保证、 同时也便于维护 附图说明 The force is reasonable, the rack load capacity is extremely strong, and it is an ideal structural form of the roller press with large specifications and performance; and it is a combination machine with high frame strength, good rigidity, simple manufacture and convenient assembly and disassembly. Roller press. No weld defects and residual weld internal stress, component size and mechanical properties are easily guaranteed, which makes the mechanical properties of the frame very stable, which is beneficial to the long-term reliable operation of the roller press. Easy to disassemble, easy to assemble, and easy to maintain DRAWINGS
图 1为本发明主视结构示意图；  1 is a schematic view showing the structure of a front view of the present invention;
图 2为本发明俯视结构示意图 （其中上端横梁处表示内部结构， 下 端横梁处表示表面结构） ；  Figure 2 is a schematic plan view of the top view of the present invention (where the upper end beam represents the internal structure and the lower end beam represents the surface structure);
图 3为左视结构示意图。 具体实施方式  Figure 3 is a schematic view of the left side structure. detailed description
本新型辊压机由组合式机架、 辊系及其驱动装置、 进料装置、 液压 油缸 8等组成， 利用 4个液压油缸 8向辊子 9施加巨大作用力， 对两相 向旋转的辊子 9 间不断钳入的物料 10 实施连续挤压， 使物料在 70〜 lOOMPa 的高挤压应力作用下形成料床粉碎， 产品是含大量微细粉的料 饼。 它采用组合式机架取代传统焊接式机架， 机架部件之间以铰接取代 骑缝销和螺栓联接， 具体结构见附图所示。 上横梁 1、 下横梁 2和立柱 3是本发明辊压机机架的主要承力部件， 它们两端都有销孔， 彼此之间靠 8个承力销 4.铰接为两个承力框架， 力 在框架内部平衡， 两根上纵梁 5和两根下纵梁 6将两个框架连成一个稳 定的整体。机架的横梁 1、2和立柱 3等主要承力部件均采用组合式结构， 构成这些部件的零件由厚钢板经无损探伤后机加工而成， 然后以螺纹联 接等方式将各零件组装成相应的部件。 举例来说， 立柱 3可由两块对立 的主体钢板和垂直于主体钢板嵌于其中的连接件 7螺纹联接构成， 与立 柱铰接处横梁夹持于立柱两主体钢板间隙内， 承力销 4从贯通的销孔中 穿过。 从力学角度看， 本辊压机机架各部件受力状况极好。 因各部件重量 远小于挤压力， 可以忽略不计， 则上下横梁是受拉的二力杆， 立柱 3是 载荷离支点很近的简支梁， 承力销 4是受对称剪力的剪切销。 由于受力 合理， 机架承载能力极强， 是大规格高性能的辊压机的一种理想的结构 形式。 N2004/001071 The novel roller press is composed of a combined frame, a roller system and a driving device thereof, a feeding device, a hydraulic cylinder 8 and the like, and applies a large force to the roller 9 by using four hydraulic cylinders 8, and two rollers for rotating the two opposite phases. The continuously clamped material 10 is subjected to continuous extrusion to form a material bed under the action of a high extrusion stress of 70 to 100 MPa, and the product is a cake containing a large amount of fine powder. It replaces the traditional welded frame with a combined frame, and the hinged pin and bolt connection are replaced by hinges between the frame parts. The specific structure is shown in the attached figure. The upper cross member 1, the lower cross member 2 and the upright column 3 are the main bearing members of the roller press frame of the present invention, and both ends have pin holes, and 8 bearing pins are connected to each other. 4. Two bearing frames are hinged to each other. The force is balanced inside the frame, and the two upper longitudinal beams 5 and the two lower longitudinal beams 6 connect the two frames into a stable whole. The main bearing members such as the beam 1, 2 and the column 3 of the frame are combined. The parts constituting these parts are machined by thick steel plate after non-destructive testing, and then the parts are assembled into corresponding parts by means of thread connection. Parts. For example, the column 3 may be formed by two opposing main steel plates and a connecting member 7 perpendicular to the main steel plate embedded therein, and the beam at the hinge of the column is clamped in the gap between the two main plates of the column, and the bearing pin 4 is penetrated. Pass through the pin hole. From a mechanical point of view, the components of the roller press frame are extremely stressed. Since the weight of each component is much smaller than the pressing force, it can be neglected, then the upper and lower beams are the tensioned two-force bar, the column 3 is the simply supported beam with the load close to the fulcrum, and the bearing pin 4 is sheared by the symmetric shear force. pin. Due to the reasonable force and strong carrying capacity of the frame, it is an ideal structural form of the large-scale high-performance roller press. N2004/001071
从制造角度看， 本辊压机制造质量更容易保证。 本组合式机架承力 部件的各构件由厚钢板经无损探伤后机加工而成， 无焊接缺陷和残余悍 接内应力， 构件尺寸和机械性能都容易保证， 这使得机架的力学性能非 常稳定， 有利于辊压机长期可靠运转。 从检修维护角度看， 本辊压机组装拆卸都很方便。 现场组装时， 插 入承力销 4即可联接好承力框架， 装配质量容易保证； 检修时， 只需拆 掉上面的 4个承力销 4将立柱放平， 就能将辊系从机架内拖出， 维护极 为方便。 From the manufacturing point of view, the manufacturing quality of the roller press is easier to guarantee. The components of the combined frame bearing component are machined by thick steel plate after non-destructive testing. There are no welding defects and residual internal stress, and the component size and mechanical properties are easily guaranteed, which makes the mechanical properties of the frame very Stable, it is conducive to long-term reliable operation of the roller press. From the point of view of maintenance and repair, the roller press is easy to assemble and disassemble. When assembling on site, insert the bearing pin 4 to connect the bearing frame, and the assembly quality is easy to guarantee. When repairing, just remove the four bearing pins 4 and lay the column flat to remove the roller from the frame. Pulling out inside, maintenance is extremely convenient.

Claims

权 利 要 求： Rights request:
1、 一种组合式机架辊压机， 包括机架、 辊系及其驱动装置， 其特征 在于：所述机架包括上横梁（1)、下横梁（2)、承载挤压力的立柱（3)， 所述立柱 （3) 与上横梁 （1) 、 下横梁 （2) 铰接。 A combined frame roller press comprising a frame, a roller system and a driving device thereof, wherein the frame comprises an upper beam (1), a lower beam (2), and a column carrying a pressing force (3) The column (3) is hinged to the upper beam (1) and the lower beam (2).
2、 根据权利要求 1所述的组合式机架辊压机， 其特征在于： 所述上 横梁 （1) 、 下横梁 （2) 各两根， 立柱四个， 其端部均设销孔， 一对立 柱 （3) 与一对横梁 （1、 2) 之间由四个承力销 （4) 铰接为一个承力框 架， 两根上纵梁 （5) 和两根下纵梁 （6) 将两个框架连成一个整体。 2. The combined frame roller press according to claim 1, wherein: the upper beam (1) and the lower beam (2) are two, and the column is four, and the end portions are provided with pin holes. A pair of uprights (3) and a pair of beams (1, 2) are hinged by a four bearing pin (4) into a bearing frame, two upper longitudinal beams (5) and two lower longitudinal beams (6) The two frames are joined together.
3、 根据权利要求 1或 2所述的组合式机架辊压机， 其特征在于： 所 述机架的上、 下横梁 （1、 2) 和立柱 （3) 采用组合式结构， 构成上、 下 横梁 （1、 2) 和立柱 （3) 的各部件由厚钢板经无损探伤后机加工而成， 并以螺紋方式联接。 3. The combined frame roller press according to claim 1 or 2, characterized in that: the upper and lower beams (1, 2) and the uprights (3) of the frame are of a combined structure, The components of the lower beam (1, 2) and the column (3) are machined by thick steel plates after non-destructive testing and are threaded.
4、 根据权利要求 1或 2所述的组合式机架辊压机， 其特征在于： 所 述立柱（3)采用组合式结构， 包括两块对立的主体钢板和垂直于主体钢 板嵌于其中的连接件 （7) ， 所述连接件 （7) 与主体钢板螺纹联接。 The combined frame roller press according to claim 1 or 2, wherein: the column (3) adopts a combined structure, comprising two opposite main steel plates and a steel plate perpendicular to the main body. a connecting member (7), the connecting member (7) being threadedly coupled to the main steel plate.
5、 根据权利要求 4所述的组合式机架辊压机， 其特征在于: 与立柱5. The combined frame roller press of claim 4, wherein:
(3) 铰接处横梁 （1、 2) 夹持于立柱 （3) 两主体钢板间隙内， 承力销(3) The hinge beam (1, 2) is clamped to the column (3) in the gap between the two main plates, the bearing pin
(4) 从贯通的销孔中穿过。 (4) Pass through the through pin hole.
PCT/CN2004/001071 2004-09-07 2004-09-21 A pressing machine with combined frame WO2006026894A1 (en)

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CN2004200611242U CN2721636Y (en) 2004-09-07 2004-09-07 Roller press with assembled frame
CN200420061124.2 2004-09-07

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100408206C (en) * 2006-07-31 2008-08-06 何亚民 Method for preparing raw material of cement and equipment therefor
DE102010048214B4 (en) * 2010-10-12 2016-02-04 Khd Humboldt Wedag Gmbh Closure element for a machine frame of a roller press
CN102126263A (en) * 2010-12-15 2011-07-20 益阳新华美机电科技有限公司 Combined type open mill stand
DE102012112102B3 (en) * 2012-12-11 2013-12-24 Maschinenfabrik Köppern GmbH & Co KG roll press
CN105964336A (en) * 2016-03-29 2016-09-28 中建材（合肥）粉体科技装备有限公司 Compact roller press

Citations (4)

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US3899965A (en) * 1973-02-06 1975-08-19 Friedhelm Koch Roll press
CN1053756A (en) * 1990-02-01 1991-08-14 国家建筑材料工业局台肥水泥研究设计院 Differential speed and equal torque squeezing mill
EP1147815A2 (en) * 2000-04-13 2001-10-24 KHD Humboldt Wedag AG Machine having two rollers and a pivoting frame
WO2003076172A1 (en) * 2002-03-08 2003-09-18 Alexanderwerk Ag Compacting press for bulk materials

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3899965A (en) * 1973-02-06 1975-08-19 Friedhelm Koch Roll press
CN1053756A (en) * 1990-02-01 1991-08-14 国家建筑材料工业局台肥水泥研究设计院 Differential speed and equal torque squeezing mill
EP1147815A2 (en) * 2000-04-13 2001-10-24 KHD Humboldt Wedag AG Machine having two rollers and a pivoting frame
WO2003076172A1 (en) * 2002-03-08 2003-09-18 Alexanderwerk Ag Compacting press for bulk materials

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