CN1345633A

CN1345633A - Rolling mill

Info

Publication number: CN1345633A
Application number: CN 00126608
Authority: CN
Inventors: 徐毅茹
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-09-29
Filing date: 2000-09-29
Publication date: 2002-04-24
Anticipated expiration: 2020-09-29
Also published as: CN1259142C

Abstract

The present invention relates to a kind of roll-grinding machinewhich possesses two types of discharging pulverized material from top of said machine by utilizing pressure air and discharging pulverized material from bottom of said machine by utilizing self-body gravity of said material. Said two types adopts the adjustable spacing device to limit the movement position of rocking arm so as to can regulate the gap between grinding surface of grinding roll and internal surface of grinding liner, so that there is not metallic contact of impact between roll and liner, therefore said machine is high in operatino reliability, small in wear and noise, its structure is simple, possesses the advantage sof roll-grinder and Raymond mill, its production capacity is large and electric consumption is low.

Description

Tumbling mill

The present invention relates to a kind of milling equipment, particularly relate to a kind of Suspension roller grinding machine.

Existing Suspension roller grinding machine is existing the introduction in the ZL96238749.5 patent documentation.The grinding roller assembly of this grinding machine is suspended on the support (plum blossom frame), and is very close to each other between grinding roller and the mill lining, and grinding roller directly contacts with mill lining during grinding machine work, produces shortcomings such as wear and tear in machines is big, fragile, noise is big thus.

The objective of the invention is to overcome the deficiencies in the prior art and provide gapped between a kind of grinding roller and the mill lining, and the whole tumbling mill of adjustable gaps.

Technical scheme 1 of the present invention is: tumbling mill comprises body, grading plant, charging gear, drawing mechanism, air-intake device, transmission device, main shaft; rocking arm; support; mill lining; scraper plate; grinding roller assembly; the grinding roller assembly is by grinding roller; roll shaft is formed; in this tumbling mill; the carriage center hole is contained on the main shaft; the grinding roller assembly is contained on the rocking arm that can swing; this rocking arm one end by hinged on support; be provided with the adjustable limiting device that can limit the rocking arm hunting range on the support in the rocking arm swinging plane; constitute adjustable gap between the roll surface that it makes grinding roller and the inner surface of mill lining; air-intake device is located at underpart; pressure air enters tumbling mill from air-intake device; uprising gas makes fine powder from going up down and powder-separating area by grading plant; thinner powder is outside the top drawing mechanism is discharged machine and become product after being collected; scraper plate is contained under the grinding roller, effect is the material that drops on organism bottom is kicked up and to be sent into roller and roll repeatedly between serving as a contrast.

In addition, in order to strengthen the grinding pressure of grinding roller to material; an elastic device also can be housed on the rocking arm; this elastic device can promote the inner surface that grinding roller face on the rocking arm is pressed to mill lining; when main axis rotation, grinding roller is driven around the main shaft revolution by rocking arm, and grinding roller is pressed to the inner surface of mill lining under the impetus of centrifugal force and elastic device; but under the constraint of adjustable stopping means, the inner surface of grinding roller face and mill lining can keep certain clearance.When material entered, roller produced rotation again under the effect of frictional force, and material becomes fine particle and powder under the rolling of roller, and elastic device can be spring mechanism, hydraulic mechanism or air pressure mechanism.

Stopping means in the technique scheme can be screw, pad etc.

Another technical scheme 2 of the present invention is except not establishing grading plant, air-intake device, drawing mechanism was located at outside body following, all the other are all identical with technical scheme 1, and this tumbling mill directly utilizes material after the gravity of material will be pulverized outside the discharge device discharge machine of bottom.

Also can be provided with adjustable pipe in the technical program between mill lining and drawing mechanism, adjustable pipe can move up and down, and in order to material thickness in the adjusting mill lining, and regulates the thickness that material is pulverized thus.

The core of two technical schemes of the present invention is all to have adopted the adjustable limiting device to limit the movement position of rocking arm, thereby can regulate the gap of grinding roller face and mill lining inner surface, therefore make the contact and the bump of no metal between the roller lining, so operating reliability improves, wearing and tearing are little, noise is little, combine the advantage of roller mill and Raymond mill in addition, make simple in structure, output is big, power consumption is low.Wherein adjustable pipe and drawing mechanism are established in technical scheme 2 bottoms, applicable in small, broken bits or grinding operation, make its structure simpler.

Further specify technical scheme of the present invention below in conjunction with accompanying drawing.

Accompanying drawing 1 is the structural representation of technical solution of the present invention 1.

Accompanying drawing 2 is structural representations of technical solution of the present invention 2.

Accompanying drawing 3 is that grinding roller assembly and rocking arm are in cross section vertical view in the body in accompanying drawing 1 and the accompanying drawing 2.

Accompanying drawing 4 is partial views of the front view of another structure of rocking arm.

Accompanying drawing 5 is grinding roller and mill lining when being cylinder and annular, the partial view at grinding roller and mill lining place in its front view.

Embodiment 1:

Accompanying drawing 1; 3 disclose an embodiment of technical solution of the present invention 1; It comprises body 15; Grading plant 2; Charging gear 7; Drawing mechanism 1; Air-intake device 11; Transmission device 21; Main shaft 13; Rocking arm 3; Support 6; The grinding roller assembly; Mill lining 10; Scraper plate 12; The grinding roller assembly is by grinding roller 9; Roll shaft 8 forms; Wherein mill lining 10 is inverted conical rings; Grinding roller 9 is up big and down small truncateds cone; Roll shaft 8 is installed in one can be on the rocking arm 3 that the end face of support 6 is swung; Relatively rocking arm 3 rotations of roller 9; Rocking arm 3 is hinged on the end face of support 6 by a bearing pin 16; Rocking arm 3 can be around bearing pin 16 swings on the end face of support 6; One cushion block, 17 restriction rocking arms 3 are arranged towards the position of mill lining 10 directions swing; One projection 18 can be set at an end of rocking arm 3; One scotch 19 is arranged the corresponding section with it at support 6; This scotch 19 is consolidated on the support 6; The cushion block 17 that one group of adjustable thickness is arranged between projection 18 and the scotch 19; There is an elastic device 5 appropriate position of leaving bearing pin 16 at rocking arm 3; This elastic device 5 can promote rocking arm 3 in the end face direction swing of support 6; This elastic device 5 promotes rocking arm 3 together with roller 9 close mill linings 10; But under the constraint of cushion block 17; Grinding roller 9 maintains certain distance with mill lining 10; Elastic device 5 removably is consolidated on the end face of support 6; Elastic device 5 can be spring; Hydraulic means or pneumatic shuttle, grinding roller 9 and rocking arm 3 etc. can be on support 6 a plurality of layouts.

Embodiment 2:

Accompanying drawing 2,3 is an embodiment of technical solution of the present invention 2, the difference of it and embodiment 1 is that grinding machine top do not have the air-intake device 11 of grading plant 2 and bottom, after material feeds from top charging gear 7, by after the rolling of grinding roller 9 and mill lining 10, directly outside adjustable pipe 14 and drawing mechanism 4 discharge machines, adjustable pipe 14 is connected with body by mode or other common regulative mode of jack latch, can move up and down, in order to regulating material thicknesses in the lining 10, devices such as roller 9 and rocking arm 3 can be on support 6 a plurality of layouts.

Accompanying drawing 4 is among embodiment 1 and the embodiment 2, another version of rocking arm 3, cushion block 17, elastic device 5 etc., and its function is with original consistent. roll shaft 8 is loaded on the rocking arm 3; Grinding roller 9 can be with respect to rocking arm 3 rotations; One hole is arranged perpendicular to milling spindle 13 on the rocking arm 3; Also there is a hole corresponding position of support 6; With bearing pin 16 that rocking arm 3 is hinged on support 6; Rocking arm 3 can be done around this pivot pin 16 circular swing motion of front and back with respect to mill lining 10 with action roller 9; Rocking arm 3 tops are a cantilever 20; Cantilever 20 is arranged at an angle with roll shaft 8; One elastic device 5 is housed on the cantilever 20, and this elastic device 5 can be spring; Hydraulic means; Pneumatic shuttle, this elastic device are consolidated on the support 6; Elastic device 5 is pressed on the cantilever 20; Cantilever also is equipped with the cushion block 17 of one group of adjustable thickness for 20 times, and under the constraint of cushion block 17, cantilever 20 can only be moved down into certain position; Therefore keep certain interval between grinding roller 9 and the mill lining 10, the devices such as roller 9 and rocking arm 3 can be on support 6 a plurality of layouts.

Grinding roller 9 can be cylindric among accompanying drawing 5 expression embodiment 1 and the embodiment 2, and the interior fenestra of its mill lining 10 should be cylindric mutually, and grinding roller 9 axis adopt the mode vertical with support.

In embodiment 1, main shaft 13 drives support 6 rotations, material feeds from charging gear 7, grinding roller 9 bumps that are subjected to not only rotation but also revolve round the sun and rolling, gas is imported and enters in the machine around body 15 bottoms from air-intake device 11 by blower fan, be subjected to lifting than granule and enter grading plant 2, meal falls, and fine powder forms product from drawing mechanism 1 discharge and by the dust arrester installation collecting.Out-of-date as the assorted Tie Tong that can not pulverize, the pressure that mill rod 9 is subjected to is born by rocking arm 3 and promotes elastic device 5 shrinks back, and grinding roller 9 strengthens with the gap of mill lining 10, and after the assorted Tie Tong, centrifugal force adds elastic device 5 promotion grinding rollers 9 and returns the position that original cushion block 17 limits.Cushion block 17 is gone back adjustable thickness to adjust the distance of grinding roller 9 and mill lining 10.This kind structure is applicable to grinding process and directly obtains fine powder.

Be that with the example I difference material relies on gravity outside bottom drawing mechanism 4 discharge machines in embodiment 2, this kind structure is applicable to grinding, technology such as in small, broken bits.

Claims

1, a kind of tumbling mill comprises body, grading plant, charging gear, drawing mechanism, air-intake device, transmission device, main shaft, rocking arm, support, mill lining, scraper plate, grinding roller assembly, the grinding roller assembly is made up of grinding roller, roll shaft, the grinding roller assembly is contained on the rocking arm that can swing, this rocking arm one end by hinged on support, it is characterized in that being provided with the adjustable limiting device that can limit the rocking arm hunting range on the support in the rocking arm swinging plane, and make between the inner surface of the roll surface of grinding roller and mill lining and constitute adjustable gap.

2, tumbling mill according to claim 1 is characterized in that also elastic device can being housed on the rocking arm, and elastic device can be spring mechanism, hydraulic mechanism or air pressure mechanism.

3, tumbling mill according to claim 1 and 2 is characterized in that stopping means can be screw, cushion block etc.

4, a kind of tumbling mill comprises body, charging gear, drawing mechanism, transmission device, main shaft, rocking arm, support, mill lining, grinding roller assembly, the grinding roller assembly is made up of grinding roller, roll shaft, the grinding roller assembly is contained on the rocking arm that can swing, this rocking arm one end by hinged on support, it is characterized in that being provided with on the support in the rocking arm swinging plane adjustable limiting device that can limit the rocking arm hunting range, and make between the inner surface of the roll surface of grinding roller and mill lining and constitute adjustable gap, drawing mechanism be located at body below.

5, tumbling mill according to claim 4 is characterized in that also elastic device can being housed on the rocking arm, and elastic device can be spring mechanism, hydraulic mechanism or air pressure mechanism.

6,, it is characterized in that stopping means can be screw, cushion block etc. according to claim 4 or 5 described tumbling mills.

7,, it is characterized in that between mill lining and drawing mechanism, being provided with movably adjustable pipe according to claim 4 or 5 described tumbling mills.

8, tumbling mill according to claim 6 is characterized in that being provided with movably adjustable pipe between mill lining and drawing mechanism.