CN101411971B

CN101411971B - Combination die powder molding type granulator

Info

Publication number: CN101411971B
Application number: CN2007101333204A
Authority: CN
Inventors: 邵汉宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-17
Filing date: 2007-10-17
Publication date: 2011-07-06
Anticipated expiration: 2027-10-17
Also published as: CN101411971A

Abstract

The present invention relates to a pelletization machine, in particular to a combined mold powder body stamping type pelletizer. The pelletizer is mainly adopted by static-pressure micro-pelletization and other processes of pharmaceutical banding, food pelletization, catalyst molding, ceramics and other industries. The pelletizer solves the problem of demolding of the prior pair roller stamping type pelletizer. The pelletizer comprises annular moulds which are evenly distributed with concave moulds on the surface and are relatively arranged, a rotating shaft, a stander, a threshing shovel, a motor and a speed reducer. The pelletizer is characterized in that the annular mould in each side at least comprises a set of a large annular mould and a small annular mould; the large annular mould and the small annular mould of the same side are in clearance fit; the concave moulds of the outer surfaces of the large annular mould and the small annular mould of each set are in adjacent arrangement and form a semi-particle type; the large annular mould of one side and the small annular mould of the relative side are pair moulds; the small annular mould of one side and the large annular mould of the other side are pair moulds; the diameter of an inner ring of the small annular mould and the outside diameter of the rotating shaft are matched and the small annular mould is fixedly arranged on the rotating shaft; as the inside diameter of the large annular mould is larger than the diameter of the rotating shaft, the large annular mould and the rotating shaft are engaged through partial teeth; and the large annular mould is positioned through two limit wheels and the small annular mould of the pair moulds.

Description

Combination die powder molding type granulator

Technical field

The present invention relates to a kind of granulation machinery, specifically is a kind of molding type granulator.This comminutor is many to be played the powder granulation of industries such as ingot, food granulation, shaping of catalyst and pottery and prevents that technology such as dust pollution from adopting by pharmacy.

Background technology

Existing this type of powder granulation mode can be divided into three kinds of the granulation of pair roller molding type, the breaking granulation of roll-in and extruded type granulations.Its granulation mode is as follows respectively.

The granulation of pair roller molding type with the roller of a pair of surface symmetry, uniform half particle shape die, shortens the granular material of inserting die through hopper into particle through the close pressure of die in constant speed, relative rotation.Help the demoulding by the perching knife that is flattened on roller surfaces.The granulation of pair roller molding type is direct granulation, advantage such as therefore have that operation is few, treating capacity is big, coating of particles is various, the input of closely knit, regular, equipment and energy consumption are all low.But owing to can not guarantee that pellet is deviate from fully in the die, thus make the interior residual material of die press more real and more real, cause removing work very difficult.Because the incidence of this type of fault is higher, causes this method to be difficult to be used in actual production.

So produced these two kinds of indirect prilling process of breaking granulation of roll-in and extruded type granulation.

The breaking granulation of roll-in adopts a pair of plain roller earlier powder to be pressed into sheet cake piece, and the fragmentation of cake piece, screening, thick excessively broken again, the screening of material, meticulous material is compressing tablet, fragmentation, screening more then again.Spheric granules must be handled through integer more if desired.

The extruded type granulation only is applicable to the powder that can add adhesive.This method be powder and adhesive kneaded after, discharge from the hole of porous mold through mechanical presses, through pelletizing, dry tack free and follow-up drying, obtain short column type particle.As the need spheric granules.Must handle through integer again.

Breaking and two kinds of granulation modes of extruded type are the indirect type granulation.Because of production process is many, need the consumption of more equipment input and manpower, power, increase production cost, and limited coating of particles and quality.But reliable relatively because of its production process, be the main mode of this type of granulation for a long time always.

Summary of the invention

The present invention will provide a kind of advantage that can keep the granulation of pair roller molding type, can make the granulation scheme of the reliable demoulding of particle that suppresses again.

The objective of the invention is to realize in the following manner:

A kind of combination die powder molding type granulator, it comprises that the surface is evenly equipped with the ring mould that is oppositely arranged, rotating shaft, frame, threshing shovel, motor and the decelerator of die, it is characterized in that comprising at least in every side ring mould one group of large and small ring mould, the large and small ring die clearance of homonymy cooperates, the adjacent setting of die of every group large and small ring mould outer surface and synthetic half type; The big ring mould of one side and the little ring mould of opposite side are to mould, and the big ring mould of little ring mould and opposite side is to mould; The diameter of little ring mould inner ring and rotating shaft external diameter are suitable and be packed in the rotating shaft; The big mould internal diameter that encircles, encircles mould greatly and locatees by two position-limited wheels and to the little ring mould of mould between the two by the engagement of part tooth greater than the rotating shaft diameter.

The radially Mould Breadth of large and small ring mould equates, the footpath of large and small ring mould is poor to be slightly less than a radially Mould Breadth.

The axial Mould Breadth of large and small ring mould equates all to be slightly less than the die diameter, and the both sides of large and small ring mould outer peripheral face evenly are provided with two circle dies, and two circle die dislocation are arranged.

The rotating shaft outer surface is provided with the external toothing that matches with large and small ring mould, the inner ring of little ring mould is axially arranged with several protruding keys location of matching with the external toothing of rotating shaft, the inner ring of the external toothing on rotating shaft surface and little ring mould leaves the sky tooth, encircles the ring gear of mould and the external toothing of rotating shaft greatly and partly meshes.

The external toothing of rotating shaft, the ring gear that encircles mould greatly all adopts rectangle straight-tooth structure.

Cooperate by the transition gear ring between big ring mould and the rotating shaft, the inner ring of transition gear ring and little ring mould all is packed in the rotating shaft by key, and the ring gear and the transition gear ring part tooth that encircle mould greatly mesh.

The transition gear ring all adopts rectangle straight-tooth structure with the ring gear of big ring mould.

Die on the large and small ring mould of every side on the same group is 1/4 type.

The grain type is elliposoidal, ball punishment or polyhedral structure.

Comb shape is shoveled in threshing, is divided into long tooth and short tooth, tilts to be installed in the bottom of large and small ring mould, and its long tooth and the front end of lacking tooth paste mutually with outer surface little, that encircle mould greatly respectively.

Every group is adopted the ring mould of two different-diameters to form half particle shape die in closing point among the present invention, form closed complete particle shape die with dislocation ring mould in closing point to mould, thereby finish the granulation of die, rotation with die, the pellet of producing leaves the closing point to mould, and the pellet of the demoulding is not stayed in the die.Again because the diameter difference of the ring mould in one group of the homonymy has formed the difference of the movement locus of large and small ring mould, and radially open half particle shape die, the pellet of the demoulding can only not stayed in 1/4 die.Owing to be provided with the threshing shovel in the bottom of large and small ring mould, its power of enforcement can make pellet separate fully with mould again.

1/4 die of ring mould of the present invention designs, and has solved the release problems of pellet, has improved the problem of threshing difficulty in the original 1/2 die production process.The probability that pellet is not only stayed in the die reduces, and the demoulding also becomes very reliable.

Powder molding type granulator of the present invention; kept existing advantage to mould roll-in granulation; simultaneously solved the release problems of direct compression granulation again, simplified the technical process that granulation is produced greatly, made granulation production high-quality, efficient, low consumption, simple and direct and reliable.

Description of drawings

Fig. 1 is the pair roller structural representation of existing pair roller mold pressing comminutor.

Fig. 2 is a structure principle chart of the present invention.

Fig. 3 is the another kind of fit system schematic diagram of belt mould of the present invention and rotating shaft.

1,2 rotating shafts among the figure, 3,4 dies, 5,7 little ring moulds, 6,8 big ring moulds, 9,10,11,12 position-limited wheels, 13,14,15,16 threshings shovel, 17 transition gear rings, 18 keys.

Claims

1. combination die powder molding type granulator, it comprises the uniform ring mould that is oppositely arranged by die in surface, rotating shaft, frame, threshing shovel, motor and decelerator, it is characterized in that comprising at least in every side ring mould one group of large and small ring mould, the large and small ring die clearance of homonymy cooperates, the adjacent setting of die of every group large and small ring mould outer surface and synthetic half type; The big ring mould of one side and the little ring mould of opposite side are to mould, and the big ring mould of little ring mould and opposite side is to mould; The diameter of little ring mould inner ring and rotating shaft external diameter are suitable and be packed in the rotating shaft; Big ring mould internal diameter is greater than the rotating shaft diameter, nibble by the part tooth between the two and, encircle mould greatly by two position-limited wheels and to the little ring mould location of mould.

2. comminutor according to claim 1 is characterized in that the radially Mould Breadth of described large and small ring mould equates, the footpath of large and small ring mould is poor to be slightly less than a radially Mould Breadth.

3. comminutor according to claim 1 is characterized in that the axial Mould Breadth of described large and small ring mould equates, all is slightly less than pellet diameter; The both sides of large and small ring mould outer peripheral face evenly are provided with two circle dies, and two circle die dislocation are arranged.

4. comminutor according to claim 1; it is characterized in that described rotating shaft outer surface is provided with the external toothing that matches with large and small ring mould; the inner ring of little ring mould is axially arranged with 3～5 protruding keys location of matching with the external toothing of rotating shaft, encircles the ring gear of mould and the external toothing part tooth engagement of rotating shaft greatly.

5. comminutor according to claim 4 is characterized in that the external toothing of described rotating shaft, and the ring gear that encircles mould greatly all adopts rectangle straight-tooth structure.

6. comminutor according to claim 1 is characterized in that cooperating by the transition gear ring between described big ring mould and the rotating shaft, and the inner ring of transition gear ring and little ring mould all is packed in the rotating shaft by key, encircles the ring gear and the engagement of transition gear ring part tooth of mould greatly.

7. comminutor according to claim 6 is characterized in that the described transition gear ring and the ring gear of big ring mould all adopt rectangle straight-tooth structure.

8. comminutor according to claim 1 is characterized in that the die on the large and small ring mould during described every side on the same group is 1/4 type.

9. comminutor according to claim 1 is characterized in that described grain type is elliposoidal, sphere or polyhedral structure.

10. comminutor according to claim 1 is characterized in that described threshing shovel is comb shape, is divided into long tooth and short tooth, tilts to be installed in the bottom of large and small ring mould, and the front end of its long tooth and weak point tooth pastes mutually with the outer surface of large and small ring mould respectively.