CN211636397U

CN211636397U - Dry-process granulator

Info

Publication number: CN211636397U
Application number: CN201922064728.1U
Authority: CN
Inventors: 金礼春
Original assignee: Changzhou Aofang Granulating Machinery Technology Co ltd
Current assignee: Changzhou Aofang Granulating Machinery Technology Co ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-10-09
Anticipated expiration: 2029-11-26

Abstract

The utility model discloses a dry granulator, which comprises a case and a raw material inlet arranged on the case; a stirring device is communicated below the raw material inlet; a spiral feeding device is communicated below the stirring device; one side of the spiral feeding device is provided with a working bin with a discharge hole at the bottom; a vibrating screen is arranged at the discharge port of the working bin; a rolling device, a crushing device and a granulating unit are arranged in the working bin; the outlet of the spiral feeding device extends into the working bin and is communicated with the rolling device; the rolling device is communicated with the crushing device; the crushing device is communicated with the granulating unit; the granulating unit is positioned above the vibrating screen; the case is also provided with a feed back inlet communicated with the spiral feeding device; the feed back on the vibrating screen is sucked into the feed back inlet through the feeding device. The utility model discloses set up feed back import and feeding mechanism, can send into spiral material feeding unit again with the feed back on the reciprocating sieve in, the processing that circulates, manual operation of acting has reduced the labour, has improved production efficiency.

Description

Dry-process granulator

Technical Field

The utility model belongs to the technical field of the pelletization technique and specifically relates to a dry process granulator is related to.

Background

In the pharmaceutical industry, dry granulators are widely used for processing pharmaceutical raw materials of various activities and one or more excipients. Most of the raw materials are fine powders, and the powders have different particle sizes, uneven density, poor fluidity and easy layering. These materials must be processed through a granulation process in order to be used in tableting, capsule filling, granulation or other pharmaceutical processing procedures. From a process point of view, roller granulation is considered dry granulation. No other chemicals are added except for the components of the finished product. Generally, granulation is carried out by mechanical compaction without the addition of binders or liquids.

At present, current dry process granulator has the inhomogeneous granule of size to produce at the pelletization in-process, and through the screening back, great granule can be saved, when not storing down, needs the manual work to carry out the large granule from newly pouring into the granulator and pelletize once more. The manual grain feeding not only consumes time, but also wastes human resources, thereby improving the production cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a need pour into granulator work efficiency again through artifical the collection low to feed back among the prior art, the higher problem of cost and provide a dry process granulator.

Realize the utility model discloses the technical scheme of purpose is: a dry granulator comprises a case and a raw material inlet arranged on the case; a stirring device is communicated below the raw material inlet; a spiral feeding device is communicated below the stirring device; a working bin with a discharge hole at the bottom is arranged at one side of the spiral feeding device; a vibrating screen is arranged at the discharge port of the working bin; a rolling device, a crushing device and a granulating unit are arranged in the working bin; the outlet of the spiral feeding device extends into the working bin and is communicated with the rolling device; the rolling device is communicated with the crushing device; the crushing device is communicated with the granulating unit; the granulating unit is positioned above the vibrating screen; the case is also provided with a feed back inlet communicated with the spiral feeding device; and the feed back on the vibrating screen is sucked into the feed back inlet through the feeding device.

The spiral feeding device comprises a feeding barrel, a spiral rod and a spiral rod driving assembly for driving the spiral rod to operate; the screw rod is rotatably arranged in the feeding barrel through a bearing seat; sealing glands are arranged at two ends of the bearing seat, and a rotary sealing element is arranged between the sealing gland and the screw rod; the rotary sealing element is made of a mixture of polytetrafluoroethylene filled copper powder.

One end of the feeding barrel is provided with a connecting sleeve; the connecting sleeve is fixedly connected with the sealing gland positioned on the inner side of the bearing seat; a collecting box is arranged below the feeding barrel; the connecting sleeve is provided with a material guide port for communicating the material feeding barrel with the collecting box.

Two groups of bearings are arranged in the bearing seat, one group is two single-row tapered roller bearings, the other group is two cylindrical roller bearings, and the two cylindrical roller bearings are positioned between the two single-row tapered roller bearings.

The rolling device comprises an upper pressing roller and a lower pressing roller; and scrapers facing the upper pressing roller and the lower pressing roller are respectively arranged on one side of the upper pressing roller and one side of the lower pressing roller.

The granulation unit comprises a first granulation unit and a second granulation unit; the second granulation unit is positioned below the first granulation unit; the first granulation unit and the second granulation unit each include a U-shaped screen and a whole grain roller assembly disposed in the screen.

The feeding device is a vacuum feeding machine.

By adopting the technical scheme, the utility model discloses following beneficial effect has: (1) the utility model discloses set up feed back import and feeding mechanism, can send into spiral material feeding unit again with the feed back on the reciprocating sieve in, the processing that circulates, manual operation of acting has reduced the labour, has improved production efficiency.

(2) The utility model discloses be equipped with rotary sealing element between the inboard gland of bearing frame and hob to rotary sealing element's material is polytetrafluoroethylene filling copper powder's mixture, compares in the silicon rubber that uses before as the sealing member, avoids polluting the possibility of raw materials.

(3) The utility model discloses a be equipped with two sets of bearings in the bearing frame, a set of two single-row tapered roller bearings that are, another a set of two cylindrical roller bearings that are to two cylindrical roller bearings are located between two single-row tapered roller bearings, and the concentricity when can guaranteeing the hob rotation avoids beating of hob, can obtain stable preforming efficiency.

(4) The utility model discloses adapter sleeve and collecting box have been set up to be equipped with the guide mouth that is used for with feed bin and collecting box intercommunication on the adapter sleeve, can get rid of the powder in the feed screw, and collect, prevent to block up the hob, influence the hob and normally work.

(5) The utility model discloses set up the scraper, can prevent that the raw materials adhesion after the preforming from influencing normal preforming on last compression roller and lower compression roller.

(6) The utility model discloses a pelletization unit includes first pelletization unit and second pelletization unit, through twice pelletization, can improve the success rate of once pelletizing, and work efficiency is high moreover.

(7) The utility model discloses a during the feed back feed inlet was inhaled with the feed back on the shale shaker to the vacuum feeder, its technique was comparatively ripe, and the pay-off effect is better.

Drawings

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is given in conjunction with the accompanying drawings, in which

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the spiral feeding device of the present invention.

The reference numbers in the drawings are:

the machine comprises a machine case 1, a raw material inlet 2, a stirring device 3, a spiral feeding device 4, a feeding barrel 4-1, a spiral rod 4-2, a spiral rod driving component 4-3, a bearing seat 4-4, a sealing gland 4-5, a rotary sealing element 4-6, a connecting sleeve 4-7, a collecting box 4-8, a material guide port 4-9, a working bin 5, a vibrating screen 6, a rolling device 7, an upper pressing roller 7-1, a lower pressing roller 7-2, a scraper 7-3, a crushing device 8, a granulating unit 9, a first granulating unit 9-1, a second granulating unit 9-2 and a return material inlet 10.

Detailed Description

(example 1)

Referring to fig. 1 and 2, the dry granulator of the present embodiment includes a housing 1 and a raw material inlet 2 disposed on the housing 1. The lower part of the raw material inlet 2 is communicated with a stirring device 3. A spiral feeding device 4 is communicated below the stirring device 3. A working bin 5 with a discharge hole at the bottom is arranged at one side of the spiral feeding device 4. A vibrating screen 6 is arranged at the discharge port of the working bin 5. The working bin 5 is internally provided with a rolling device 7, a crushing device 8 and a granulating unit 9. The outlet of the spiral feeding device 4 extends into the working bin 5 and is communicated with the rolling device 7. The rolling device 7 is communicated with a crushing device 8. The crushing device 8 communicates with a granulation unit 9. The granulation unit 9 is located above the vibrating screen 6. The case 1 is also provided with a feed back inlet 10 communicated with the spiral feeding device 4. The feed back on the vibrating screen 6 is sucked into the feed back inlet 10 through the feeding device.

Further, the spiral feeding device 4 comprises a feeding barrel 4-1, a spiral rod 4-2 and a spiral rod driving assembly 4-3 for driving the spiral rod 4-2 to operate. The screw rod driving component 4-3 preferably adopts a speed reducing motor, and a driving shaft of the speed reducing motor is fixedly connected with the screw rod 4-2 through a coupler. The screw rod 4-2 is rotatably arranged in the feeding barrel 4-1 through a bearing seat 4-4. Two ends of the bearing seat 4-4 are respectively provided with a sealing gland 4-5, and a rotary sealing element 4-6 is arranged between the sealing gland 4-5 positioned at the inner side and the screw rod 4-2. The material of the rotary sealing element 4-6 is a mixture of polytetrafluoroethylene filled copper powder.

Furthermore, one end of the feeding barrel 4-1 is provided with a connecting sleeve 4-7. The connecting sleeve 4-7 is fixedly connected with a sealing gland 4-5 of the bearing seat 4-4 which is positioned at the inner side. A collecting box 4-8 is arranged below the feeding barrel 4-1. The connecting sleeve 4-7 is provided with a material guide port 4-9 for communicating the feeding barrel 4-1 with the collecting box 4-8 so as to collect dust in the feeding barrel 4-1 and prevent the dust accumulation from influencing the normal work of the screw rod 4-2.

Furthermore, two groups of bearings are arranged in the bearing seat 4-4, one group is two single-row tapered roller bearings, the other group is two cylindrical roller bearings, and the two cylindrical roller bearings are positioned between the two single-row tapered roller bearings.

Further, the rolling device 7 comprises an upper rolling roller 7-1, a lower rolling roller 7-2 and a roller driving motor for driving the lower rolling roller 7-2 to operate. One side of the upper pressing roller 7-1 and one side of the lower pressing roller 7-2 are respectively provided with a scraper 7-3 facing the upper pressing roller 7-1 and the lower pressing roller 7-2 so as to prevent the pressed raw materials from being adhered to the upper pressing roller 7-1 and the lower pressing roller 7-2 to influence the normal operation of the subsequent pressing.

Further, the crushing device comprises a housing, a crushing cutter rotatably mounted in the housing through a rotating shaft, and a rotating shaft driving assembly for driving the rotating shaft to rotate, wherein the rotating shaft driving assembly preferably adopts a speed reduction motor.

Further, the granulation unit 9 includes a first granulation unit 9-1 and a second granulation unit 9-2. The second granulation unit 9-2 is located below the first granulation unit 9-1. The first granulation unit 9-1 and the second granulation unit 9-2 each include a U-shaped screen and a granule roller assembly provided in the screen.

Further, the feeding device adopts a vacuum feeding machine, an inlet of the vacuum feeding machine is communicated to the vibrating screen 6, and an outlet of the vacuum feeding machine is communicated to the feed back inlet 10.

The working process is as follows: firstly, pouring raw materials from a raw material inlet 2, stirring and mixing the raw materials through a stirring device 3, conveying the raw materials into a spiral feeding device 4, conveying the raw materials into a rolling device 7 for tabletting, crushing the raw materials by a crushing device 8, dropping the crushed raw materials into a first granulation unit 9-1 for rough granulation, dropping particles prepared by the first granulation unit 9-1 into a second granulation unit 9-2 for fine granulation, finally, screening the prepared particles on a vibrating screen 6, dropping qualified particles from an outlet of a working bin 5, collecting the qualified particles, dropping large particles on the vibrating screen 6, sucking the large particles and dust into a feed back inlet 10 through a vacuum feeder, and feeding the large particles and the dust into the spiral feeding device 4 for recycling processing.

The above embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above embodiments are only examples of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A dry granulator is characterized in that: comprises a case (1) and a raw material inlet (2) arranged on the case (1); a stirring device (3) is communicated below the raw material inlet (2); a spiral feeding device (4) is communicated below the stirring device (3); a discharge hole working bin (5) is arranged at the bottom of one side of the spiral feeding device (4); a vibrating screen (6) is arranged at the discharge port of the working bin (5); a rolling device (7), a crushing device (8) and a granulating unit (9) are arranged in the working bin (5); an outlet of the spiral feeding device (4) extends into the working bin (5) and is communicated with the rolling device (7); the rolling device (7) is communicated with the crushing device (8); the crushing device (8) is communicated with the granulating unit (9); the granulating unit (9) is positioned above the vibrating screen (6); the case (1) is also provided with a feed back inlet (10) communicated with the spiral feeding device (4); and the feed back on the vibrating screen (6) is sucked into the feed back inlet (10) through the feeding device.

2. A dry granulator according to claim 1, characterized in that: the spiral feeding device (4) comprises a feeding barrel (4-1), a spiral rod (4-2) and a spiral rod driving assembly (4-3) for driving the spiral rod (4-2) to operate; the screw rod (4-2) is rotatably arranged in the feeding barrel (4-1) through a bearing seat (4-4); two ends of the bearing seat (4-4) are provided with sealing glands (4-5), and a rotary sealing element (4-6) is arranged between the sealing gland (4-5) positioned on the inner side and the screw rod (4-2); the rotary sealing element (4-6) is made of a mixture of polytetrafluoroethylene filled copper powder.

3. A dry granulator according to claim 2, characterized in that: one end of the feeding barrel (4-1) is provided with a connecting sleeve (4-7); the connecting sleeve (4-7) is fixedly connected with a sealing gland (4-5) of the bearing seat (4-4) which is positioned at the inner side; a collecting box (4-8) is arranged below the feeding barrel (4-1); the connecting sleeve (4-7) is provided with a material guide port (4-9) for communicating the material feeding barrel (4-1) with the collecting box (4-8).

4. A dry granulator according to claim 2, characterized in that: two groups of bearings are arranged in the bearing seat (4-4), one group is two single-row tapered roller bearings, the other group is two cylindrical roller bearings, and the two cylindrical roller bearings are positioned between the two single-row tapered roller bearings.

5. A dry granulator according to claim 1, characterized in that: the rolling device (7) comprises an upper rolling roller (7-1) and a lower rolling roller (7-2); and one side of the upper pressing roll (7-1) and one side of the lower pressing roll (7-2) are respectively provided with a scraper (7-3) facing the upper pressing roll (7-1) and the lower pressing roll (7-2).

6. A dry granulator according to claim 1, characterized in that: the granulation unit (9) comprises a first granulation unit (9-1) and a second granulation unit (9-2); the second granulation unit (9-2) is located below the first granulation unit (9-1); the first granulation unit (9-1) and the second granulation unit (9-2) each comprise a U-shaped screen and a granulating roller assembly disposed in the screen.

7. A dry granulator according to claim 1, characterized in that: the feeding device is a vacuum feeding machine.