SU1346238A1 - Roller mill - Google Patents

Abstract

The invention relates to the grinding of various materials, namely roller mills, and improves their operational reliability, simplifies the design and reduces the weight. The roll mill comprises a housing 1, a grinding table 2, lined with armored plates 3 and resting on a fluid friction bearing 4. The grinding rolls 5 are rigidly fixed at one end of the shafts 6, and the other end of the shafts 6 on the bearing support 7 is hinged to the foundation outside the housing 1. Ends the shafts 6 and the gearbox 8 of the actuator 9 are connected by a double swivel coupling 10. The grinding rolls 5 are pressed to the grinding table 2 by hydraulic cylinders 11 that are hinged on the foundation and are equipped with pneumohydraulic accumulators 12. Connection of shafts 6 with hydraulic cylinders The cylinders 11 are made in the form of sliders 13 connected through the bearing 14 to the shaft 6, and the hinge 15 - to the hydraulic cylinder II. The slider 13 is fixed in the guide 16 on the foundation and is able to move in it only in the vertical plane, fixing the position of the grinding roll 5 and the shaft 6 in the horizontal plane. Separator 17 with adjustable drive 18 and chute 19 for grindable material are integrated into the mill housing 1. 2 hp ff, 1 ill. S (L P e 10 1 6 with N (i Oi and 00 CX5 / / "/ - -)

Description

The invention relates to equipment for grinding various materials, namely, roller mills, and can be used in the construction, energy, cement, chemical industry and other industries.

The purpose of the invention is to increase the operational reliability, simplify the design and reduce the mass of the roller mill.

separator 17, where the unmilled particles are returned to the grinding table 2 and the finished product is removed from the mill.

In case of ingestion of objects under the grinding rollers 5, as well as when the material grinding layer is changed, the grinding roller 5 is raised by a certain amount along with the shaft 6, which rotates on the bearing support 7 in a vertical plane. The drawing shows schematically the placement of the end of the shaft 6 at the support 7 of the compressor 15

20

roll mill, general view.

The roll mill contains a housing 1, a ground table 2, lined with armor plates 3 and supported by a liquid friction bearing 4.

The milling rolls 5 are rigidly fixed at one end of the shafts 6, and the other end of the shafts 6 on the bearing support 7 is hinged to the foundation outside the mill housing 1 so that the shaft 6 has the ability to rotate in a vertical plane. The ends of the shafts b and the gearbox 8 of the actuator 9 are connected by a double pivotally coupling 10, and the coupling 10 connection with the end of the shaft 6 is made telescopic. The grinding rolls 5 are pressed to the grinding table 2 by hydraulic cylinders 11, hinged on the foundation and fitted with pneumohydroaccumulators 12. The shafts 6 are connected to the hydraulic cylinders 11 in the form of sliders 13. The slider 13 is connected to the shaft 6 through the bearing 14, and with hydraulic cylinder 1 hinge 15.

The slider 13 is fixed in the guide 16 on the foundation and is able to move in it only in the vertical plane, thereby fixing the position of the grinding roll 5 and the shaft 6 in the horizontal plane. Separator 17 with adjustable drive 18 and chute 19 for grindable material are integrated in the mill housing 1.

thirty

The hinged clutch 10 and its telescopic connection with the shaft is connected.

Moving out the bearings of rotation of the grinding rolls outside the mill housing and fixing them to the foundation allows the grinding rolls to freely move non-crushable objects, which increases the reliability of the mill.

Removing the bearings of the grinding mill shafts from the mill, i.e. from the place of application of the grinding load, significantly reduces their dimensions and increases the ease of maintenance.

The use of the invention will allow the use of standardized gearboxes from conventional ball mill drives or other devices, reduce the size and weight of the mill, increase operational reliability and improve the serviceability of the roller mill.

Claims (3)

1. A roll mill comprising a housing mounted on a foundation, inside of which there is a grinding table, grinding rollers, each of which is mounted on an axis passing through the housing, and has a pressure system located outside the housing, made with an hydraulic cylinder connected to the axle and a hinge support , characterized in that, in order to improve operational reliability, to simplify The roll mill operates as follows in construction 40 and reducing the mass of the mill in a manner. Each grinding roll is rigidly fixed The crushed material is fed to the grinding table 19, which is turned into two (three and four) grinding rollers 5 by frictional forces resulting from pressing the grinding rollers 5 by the hydraulic cylinders 11 to the grinding table 2. The grinding rollers 5 are rotated individually drives 9. When the grinding table 2 rotates, the material is distributed through the grinding table 2 due to centrifugal forces and falls under the grinding rollers 5, which, as it rotates, as if they hit the material, crushing and grinding it. The ground mana of the axis, which is passed through the hinge support of the preload system, is pivotally connected to the drive, and the grinding table is installed with the possibility of free rotation. 2. Mill according to claim 1, characterized in that the articulated connection of the actuator with the axis is made in the form of a double articulated clutch fixed by telescopically at its end. 3. Mill on the PP. 1 and 2, characterized in that the system of pressing the roll is provided with a guide fixed by means of a guide and a slider installed in it, one end of which is connected through 50 the material, the departure from the grinding table 2, the bearing with the axle, and the other - the hinge is grabbed by the drying agent and comes but with a hydraulic cylinder rod. VNIIPIZakaz 4630/9 Circulation 572 Subscription Manufacturing and printing company, Uzhgorod, st. Project, 4 separator 17, where the unmilled particles are returned to the grinding table 2 and the finished product is removed from the mill. In case of ingestion of objects under the grinding rollers 5, as well as when the material grinding layer is changed, the grinding roller 5 is raised by a certain amount along with the shaft 6, which rotates on the bearing support 7 in a vertical plane. Moving the end of the shaft 6 at the support 7 to the computation of the end of the shaft 6 at the bearing 7 The hinged clutch 10 and its telescopic connection with the shaft is connected. Moving out the bearings of rotation of the grinding rolls outside the mill housing and fixing them to the foundation allows the grinding rolls to freely move non-crushable objects, which increases the reliability of the mill. Removing the bearings of the grinding mill shafts from the mill, i.e. from the place of application of the grinding load, significantly reduces their dimensions and increases the ease of maintenance. The use of the invention will allow the use of standardized gearboxes from conventional ball mill drives or other devices, reduce the size and weight of the mill, increase operational reliability and improve the serviceability of the roller mill. Invention Formula but with a hydraulic cylinder rod.