CN216172123U - Negative pressure horizontal conveying assembly for dry method granulator - Google Patents
Negative pressure horizontal conveying assembly for dry method granulator Download PDFInfo
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- CN216172123U CN216172123U CN202122311957.6U CN202122311957U CN216172123U CN 216172123 U CN216172123 U CN 216172123U CN 202122311957 U CN202122311957 U CN 202122311957U CN 216172123 U CN216172123 U CN 216172123U
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Abstract
The utility model provides a negative pressure horizontal conveying assembly for a dry-method granulator, which belongs to the technical field of granulation equipment and comprises a horizontally arranged conveying channel, a feeding device and a discharging device, wherein the horizontally arranged conveying channel is provided with an air suction opening positioned between a feeding opening and a discharging opening; the conveying screw is arranged in the conveying channel, and the conveying range of the conveying screw covers the feeding port and the discharging port; the rotary driving piece is arranged in the conveying channel and conveys the materials from the feeding port to the discharging port in a rotary mode through autorotation; a negative pressure generating member in communication with the suction port. The utility model can quickly adjust the clearance between the materials before the materials enter the tablet press, so that the materials are evenly distributed as much as possible, thereby reducing the difference of the filling compactness of the materials entering the screw spiral groove from the stock bin, ensuring the more uniform hardness of the high-density sheet pressed by the tablet press and ensuring the granulation effect.
Description
Technical Field
The utility model relates to the technical field of dry-process granulators, in particular to a negative-pressure horizontal conveying assembly for a dry-process granulator.
Background
Dry granulators are one of the devices commonly used in the pharmaceutical field, mainly for processing heat-sensitive substances, working in the context of: the material in the feed bin mixes the homogeneous mixing and removes the air through the stirring of agitator, and after the material got into horizontal feeder afterwards, under the drive of rotatory screw rod, made the material degas gradually at the antedisplacement in-process to the material after will improving density is forced to be sent into the tablet press and is broken after the preforming can.
However, the storage bin is used for intermittent feeding, and the height of the material level in the storage bin is changed, so that the filling compactness of the material entering the screw spiral groove from the storage bin is different, and finally, the hardness of the powder pressed into the high-density thin slice by the tablet press is uneven, and the granulation effect is influenced.
Based on this, the present application is proposed.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a negative pressure horizontal conveying assembly for a dry-method granulator, which solves the problem that the granulation effect is reduced due to inconsistent material filling density in the horizontal feeding process in the prior art, so that the quality of the dry-method granulated product is uniform, and the granulation effect is kept.
In order to achieve the purpose, the negative pressure horizontal conveying component for the dry granulating machine has the following structure:
comprises a horizontally arranged conveying channel which is provided with a feeding port communicated with a storage bin, a discharging port communicated with a tablet press or a trough, and an air pumping port positioned between the feeding port and the discharging port;
the conveying screw is arranged in the conveying channel, and the conveying range of the conveying screw covers the feeding port and the discharging port;
the rotary driving piece is arranged to drive the conveying screw to rotate in the axial direction of the conveying channel so as to convey the materials from the feeding port to the discharging port in a rotary mode;
and the negative pressure generating piece is communicated with the air suction port and used for sucking air in the conveying channel by generating negative pressure.
Through the structure, the negative pressure generating piece can suck air among materials from the conveying channel in the horizontal conveying process of the materials, so that the materials are tightly attached together as much as possible and conveyed to the tablet press to be pressed in a more uniformly distributed negative pressure state, the defect that the pressing thickness is different due to intermittent material conveying in the prior art is overcome, and the structure is convenient to realize.
The utility model further provides the following: the plurality of pumping holes are uniformly distributed on the peripheral wall of the conveying channel. By arranging the plurality of air pumping ports, on one hand, the air pumping efficiency can be improved, so that negative pressure can be quickly formed near the air pumping ports, and the material is more compact; on the other hand, the effect that the material covers all the pumping holes and reduces negative pressure feeding can be avoided.
The utility model further provides the following: the pumping hole is strip-shaped, the length direction of the pumping hole is parallel to the axial direction of the conveying channel, the negative pressure conveying process can be prolonged, and the effect of negative pressure feeding is ensured.
The utility model further provides the following: the negative pressure generating part is used for generating negative pressure, and the negative pressure generating part is used for generating negative pressure;
the air exhaust sleeve is correspondingly sleeved on the outer peripheral wall of the conveying channel, wherein the part of the conveying channel is provided with an air exhaust opening, and the two axial ends of the air exhaust sleeve are connected with the conveying channel in a sealing mode.
When being provided with a plurality of extraction openings, can reduce the pipeline quantity of being connected between negative pressure production subassembly and the extraction opening through the sleeve of bleeding, simplify the structure, improve the reliability of connecting.
The utility model further provides the following: the number of the air exhaust connectors is 1-2.
The utility model further provides the following: the air exhaust sleeve can rotate relative to the conveying channel under the action of external force, and is provided with an air flow adjusting block for adjusting the communication area of the air exhaust opening and the inner cavity in the rotating process, so that the air exhaust speed of the air exhaust opening can be conveniently changed in a rotating mode, and different practical use requirements can be met.
The utility model further provides the following: the air flow adjusting block is a radial protrusion which extends from the inner side of the outer wall of the air exhaust sleeve to the side where the conveying channel is located and is in contact fit with the outer peripheral wall of the conveying channel; the position of the radial bulge corresponds to the air pumping hole. The structure is simple, convenient to process and realize, and the structure of the conveying channel is not required to be changed.
The utility model further provides the following: the radial protrusions are lug groups which correspond to the air pumping openings one by one, each lug group comprises lugs which are continuously arranged along the circumferential direction and have different axial lengths, and the circumferential width of each lug is not less than the circumferential width of each air pumping opening, and the axial maximum length of the lug with the longest axial length is not less than the axial length of each air pumping opening.
Therefore, when different angles are rotated, different lugs in the lug group can shield the air pumping port, and further the adjustment of the multistage air pumping speed is realized.
The utility model further provides the following: in the convex block group, the difference of the axial length between the adjacent convex blocks is equal, so that the adjustment of the pumping speed in multiple stages and in equal proportion is realized.
The utility model has the following beneficial effects: according to the utility model, the negative pressure horizontal conveying assembly is provided, so that the gap between the materials can be quickly adjusted in the horizontal conveying process before the materials enter the tablet press, and the materials are uniformly distributed as much as possible, thereby reducing the difference of filling compactness of the materials entering the screw spiral groove from the stock bin, ensuring more uniform hardness of the high-density sheet pressed by the tablet press, and ensuring the granulation effect.
Drawings
FIG. 1 is a general schematic diagram of an embodiment of the present invention.
FIG. 2 is a schematic diagram of a pump hole structure according to an embodiment of the present invention.
FIG. 3 is a schematic view of an embodiment of an evacuation sleeve according to the present invention.
FIG. 4 is a schematic front view of an embodiment of the present invention.
Fig. 5 is a schematic view of the section a-full shielding in fig. 4.
Fig. 6 is a schematic view of the cross section B-full block in fig. 4.
FIG. 7 is a schematic view of the present invention according to an embodiment without occlusion.
FIG. 8 is a schematic view of the present invention according to an embodiment without occlusion.
FIG. 9 is a schematic partial occlusion diagram in accordance with an embodiment of the present invention.
FIG. 10 is a schematic view of partial occlusion in accordance with an embodiment of the present invention
Reference numerals: 1. a delivery conduit; 110. a feeding port; 120. a discharge port; 2. an air extraction sleeve; 3. an air exhaust pipe; 101. an air extraction opening; 201. a radial projection; 202. an air extraction connector; 203. an inner cavity; 4. a conveying screw; 5. an electric motor.
Detailed Description
Embodiment 1 this embodiment provides a negative pressure horizontal transfer subassembly for dry process granulator, including horizontally arranged transfer passage, conveying screw 4, motor 5 and exhaust tube 3, wherein, transfer passage has pan feeding mouth 110, discharge gate 120, and pan feeding mouth 110 is the great fluting structure of an opening and sets up on transfer passage's lateral wall, and the opening of pan feeding mouth 110 sets up upwards and communicates with the feed bin, and the material adds the material from the top of this pan feeding mouth 110 downwards. The discharge port 120 is an opening at one axial end of the conveying channel and on the side wall of the conveying pipeline 1, and the discharge port 120 is communicated with a tablet press or a trough. Three strip-shaped pumping holes 101 which are uniformly distributed are formed in the position between the feeding hole 110 and the discharging hole 120 and are preferably close to one side of the discharging hole 120, and the length direction of the pumping holes 101 is parallel to the axial length of the conveying channel.
Referring to fig. 5, the length of the conveying screw 4 is parallel to the axial direction of the conveying channel and is coaxially disposed inside the conveying channel, in this embodiment, the motor 5 is disposed at the leftmost end of the conveying channel and the output shaft thereof is coaxially linked with one end of the conveying screw 4. When the material is filled in the material inlet 110, the conveying screw 4 rotates to drive the material to move to the right side to the side of the material outlet 120 and convey the material to the flatting machine.
As shown in fig. 3, an air extracting sleeve 2 is correspondingly sleeved outside the air extracting opening 101, an inner cavity 203 is formed in the air extracting sleeve 2 in a hollow manner, and both axial ends of the air extracting sleeve 2 are hermetically connected with the conveying passage by sealing rings. Meanwhile, the air exhaust sleeve 2 is provided with an air exhaust connecting port 202 used for being communicated with the negative pressure generating part, and the air exhaust connecting port 202 is also communicated with the inner cavity 203; after assembly, the suction sleeve 2 covers all the strip-shaped suction openings 101 on the conveying channel, so that all the suction openings 101 are communicated with each other in the inner cavity 203. The suction connection port 202 is connected to the suction pipe 3 and then communicated with a negative pressure generating member (typically, a vacuum pump) via the suction pipe 3. Because this embodiment has designed a plurality of extraction openings 101 and bar extraction opening 101, so its air exhaust is fast, the effect of bleeding is even. Of course, in the specific implementation, in order to prevent the material from being pumped out from the pumping hole 101, a mesh plate barrier may be disposed at the pumping hole 101.
Through the structure, during the use of this embodiment, ensure that the sleeve 2 and the pipeline 1 of bleeding seal, open the feed bin and carry out the filler, the vacuum pump starts, 4 materials of motor 5 drive conveying screw to discharge gate 120 one side simultaneously, when the material passes through extraction opening 101, because the negative pressure effect, the clearance of material between here is reduced, and then under the condition of intermittent type formula interpolation material, make the clearance between the material homogenization as far as possible, avoid in the subsequent course of working that flattens, the condition that the preforming hardness differs appears.
Example 2 this example differs from example 1 in that: in this embodiment, as shown in fig. 3, the suction sleeve 2 can rotate relative to the delivery passage under the action of external force and has an air flow adjusting block for adjusting the communication area between the suction opening 101 and the inner cavity 203 during the rotation. Specifically, in the present embodiment, the air flow adjusting block is a radial protrusion 201 extending from the inner side of the outer wall of the air extracting sleeve 2 to the side of the delivery passage and contacting and cooperating with the outer peripheral wall of the delivery passage. The radial protrusions 201 are sets of protrusions corresponding to the air extraction openings 101 one by one, each set of protrusions includes protrusions continuously arranged along the circumferential direction and having different axial lengths, the width of each protrusion in the circumferential direction is not less than the width of each air extraction opening 101 in the circumferential direction, and the maximum length of each protrusion in the axial direction, which has the longest axial length, is not less than the length of each air extraction opening 101 in the axial direction.
Preferably, the axial length differences between adjacent projections in this embodiment are equal.
The initial position of the radial protrusion 201 corresponds to the pumping hole 101, as shown in fig. 5 and 6, in the initial position, each pumping hole 101 corresponds to one radial protrusion 201, and the radial protrusion 201 completely blocks the pumping hole 101, at this time, the pumping hole 101 cannot be communicated with the pumping sleeve 2, the vacuum pump stops working, and the conveying passage conveys at normal air pressure.
As shown in fig. 7 and 8, under the action of an external force, the pumping sleeve 2 rotates by a large angle relative to the conveying channel, the radial protrusion 201 corresponding to each pumping hole 101 is staggered with the position of the pumping hole 101, all the pumping holes 101 are completely uncovered and are completely communicated with the inner cavity 203 of the pumping sleeve 2, the vacuum pump works normally, and the conveying channel is subjected to the maximum negative pressure.
As shown in fig. 9 and 10, the air extracting sleeve 2 rotates a certain angle relative to the conveying channel under the action of external force, the radial protrusion 201 corresponding to each air extracting opening 101 partially shields the air extracting opening 101, so that only part of the air extracting opening 101 is exposed, the air extracting opening 101 is communicated with the inner cavity 203 of the air extracting sleeve 2 through the exposed part, the vacuum pump can work at a working power lower than that described in the upper section, and the negative pressure applied to the conveying channel is relatively reduced.
In addition, for the convenience of use of the operator, the air exhaust sleeve 2 can be transparent so as to facilitate observation, or corresponding scales can be arranged on the conveying channel and the air exhaust sleeve 2 for prompting.
In conclusion, the utility model provides the negative pressure horizontal conveying assembly which is simple in structure and convenient for adjusting the magnitude of the negative pressure, and can fully meet the actual use requirement.
Claims (9)
1. The utility model provides a horizontal conveying subassembly of negative pressure for dry process granulator which characterized in that:
comprises a horizontally arranged conveying channel which is provided with a feeding port communicated with a storage bin, a discharging port communicated with a tablet press or a trough, and an air pumping port positioned between the feeding port and the discharging port;
the conveying screw is arranged in the conveying channel, and the conveying range of the conveying screw covers the feeding port and the discharging port;
the rotary driving piece is arranged to drive the conveying screw to rotate in the axial direction of the conveying channel so as to convey the materials from the feeding port to the discharging port in a rotary mode;
and the negative pressure generating piece is communicated with the air suction port and used for sucking air in the conveying channel by generating negative pressure.
2. The negative pressure horizontal transfer assembly for a dry granulator of claim 1, wherein: the plurality of pumping holes are uniformly distributed on the peripheral wall of the conveying channel.
3. The negative pressure horizontal transfer assembly for a dry granulator of claim 1, wherein: the pumping hole is strip-shaped, and the length direction of the pumping hole is parallel to the axial direction of the conveying channel.
4. The negative pressure horizontal transfer assembly for a dry granulator according to claim 2 or 3, wherein: the negative pressure generating part is used for generating negative pressure, and the negative pressure generating part is used for generating negative pressure;
the air exhaust sleeve is correspondingly sleeved on the outer peripheral wall of the conveying channel, wherein the part of the conveying channel is provided with an air exhaust opening, and the two axial ends of the air exhaust sleeve are connected with the conveying channel in a sealing mode.
5. The negative pressure horizontal transfer assembly for a dry granulator of claim 4, wherein: the number of the air exhaust connectors is 1-2.
6. The negative pressure horizontal transfer assembly for a dry granulator of claim 4, wherein: the air exhaust sleeve can rotate relative to the conveying channel under the action of external force and is provided with an air flow adjusting block for adjusting the communication area of the air exhaust opening and the inner cavity in the rotating process.
7. The negative pressure horizontal transfer assembly for a dry granulator of claim 6, wherein: the air flow adjusting block is a radial protrusion which extends from the inner side of the outer wall of the air exhaust sleeve to the side where the conveying channel is located and is in contact fit with the outer peripheral wall of the conveying channel; the position of the radial bulge corresponds to the air pumping hole.
8. The negative pressure horizontal transfer assembly for a dry granulator of claim 7, wherein: the radial protrusions are lug groups which correspond to the air pumping openings one by one, each lug group comprises lugs which are continuously arranged along the circumferential direction and have different axial lengths, and the circumferential width of each lug is not less than the circumferential width of each air pumping opening, and the axial maximum length of the lug with the longest axial length is not less than the axial length of each air pumping opening.
9. The negative pressure horizontal transfer assembly for a dry granulator of claim 8, wherein: in the convex block group, the difference of the axial length between the adjacent convex blocks is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122311957.6U CN216172123U (en) | 2021-09-23 | 2021-09-23 | Negative pressure horizontal conveying assembly for dry method granulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122311957.6U CN216172123U (en) | 2021-09-23 | 2021-09-23 | Negative pressure horizontal conveying assembly for dry method granulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216172123U true CN216172123U (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122311957.6U Active CN216172123U (en) | 2021-09-23 | 2021-09-23 | Negative pressure horizontal conveying assembly for dry method granulator |
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| Country | Link |
|---|---|
| CN (1) | CN216172123U (en) |
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2021
- 2021-09-23 CN CN202122311957.6U patent/CN216172123U/en active Active
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