CN216879130U - A mixing system for having stifled performance wet process mixing granulator that explodes - Google Patents
A mixing system for having stifled performance wet process mixing granulator that explodes Download PDFInfo
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- CN216879130U CN216879130U CN202220407050.1U CN202220407050U CN216879130U CN 216879130 U CN216879130 U CN 216879130U CN 202220407050 U CN202220407050 U CN 202220407050U CN 216879130 U CN216879130 U CN 216879130U
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Abstract
The utility model provides a stirring system for a wet mixing granulator with smoldering explosion performance, which belongs to the technical field of granulators and comprises a motor, a stirring shaft and a stirring paddle, wherein the stirring shaft is connected with the stirring paddle, a joint of the stirring shaft and the stirring paddle is provided with a gas sealing assembly, the gas sealing assembly comprises a shaft seal mounting seat, a single-lip rotary shaft seal, a first reverse double-lip rotary shaft seal, a second reverse double-lip rotary shaft seal, a single-lip sealing ring, a first double-lip sealing ring and a second double-lip sealing ring are arranged between the shaft seal mounting seat and the stirring shaft, the gas sealing assembly has the functions of water inlet, water discharge and pressure detection, meanwhile, in order to avoid the damage of explosion in a pot to an inflated component and the leakage of gas in the pot, the single-lip rotary shaft seal is arranged to enable the inflated gas to enter from the single-lip rotary lip, and the other lip of the single-lip rotary shaft seal plays an anti-explosion role, good sealing performance can be maintained after explosion.
Description
Technical Field
The utility model relates to the technical field of granulators, in particular to a stirring system for a wet mixing granulator with smoldering explosion performance.
Background
Along with the environmental protection requirement and the increasing importance to the personal safety guarantee, the granulation system is highly closed, the requirements for reducing the environmental pollution and the like are gradually concerned and paid attention to, and the granulation system also has the requirement for the dust explosion of equipment. The maximum explosion pressure of the wet granulation material is not more than 10bar (except nonferrous metals such as aluminum), so most anti-explosion (smoldering) systems select the maximum explosion pressure to be 10 bar. Due to the special process of the wet granulator, the dry powder mixing time is short, the risk of dust explosion is reduced to a certain extent by wet granulation, but the risk of dust explosion still exists, for example, when the wet granulator is connected with a fluidized bed, and dust explosion occurs in the fluidized bed, the explosion pressure can be transmitted to the wet granulator along with a discharge pipeline, and the dust in the pot of the wet granulator is detonated; and the mixing process of dry powder of a wet granulator and the like also has explosion risk.
The stirring system is an important component of the wet granulator, and the anti-explosion problem needing to be considered in the stirring system is mainly the position of an air inlet seal and the axial force generated by the rotation of the stirring shaft.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a stirring system for a wet mixing granulator with smoldering performance.
The technical scheme adopted by the utility model is as follows: a stirring system for a wet mixing granulator with smoldering explosion performance comprises a motor, a stirring paddle and a stirring shaft, wherein one end of the stirring shaft is connected with the motor, the other end of the stirring shaft is connected with the stirring paddle, a joint of the stirring shaft and the stirring paddle is provided with a hermetic seal assembly, the hermetic seal assembly comprises a shaft seal installation seat, the shaft seal installation seat is coaxially sleeved outside the stirring shaft, a single-lip rotary shaft seal, a first reverse double-lip rotary shaft seal and a second reverse double-lip rotary shaft seal are sequentially arranged between the shaft seal installation seat and the stirring shaft at a certain interval along the direction from the stirring paddle to the motor, a single-lip sealing ring is arranged in the single-lip rotary shaft seal, a first double-lip sealing ring is arranged in the first reverse double-lip rotary shaft seal, a second double-lip sealing ring is arranged in the second reverse double-lip rotary shaft seal, and a first sealing cavity is formed between the single-lip rotary shaft seal and the first reverse double-lip rotary shaft seal, and a second sealing cavity is formed between the first reverse double-lip rotary shaft seal and the second reverse double-lip rotary shaft seal, the first sealing cavity is provided with a water inlet pipeline and a water discharge pipeline, and the second sealing cavity is provided with a pressure detection pipeline.
The stirring shaft is sleeved with a sealing shaft sleeve, and the lip openings of the single-lip rotary shaft seal, the first reverse double-lip rotary shaft seal and the second reverse double-lip rotary shaft seal are abutted to the sealing shaft sleeve.
The single-lip rotary shaft seal, the first reverse double-lip rotary shaft seal and the second reverse double-lip rotary shaft seal are respectively provided with a first shaft seal part and a second shaft seal part, and the single-lip sealing ring, the first double-lip sealing ring and the second double-lip sealing ring are respectively clamped between the first shaft seal part and the second shaft seal part.
The stirring shaft is coaxially sleeved with a bearing seat, and bearings are arranged at two ends of the bearing seat and connected with the stirring shaft.
And a plurality of connecting holes for bolt connection are formed at two ends of the bearing seat.
A speed reducer is arranged between the motor and the stirring shaft.
The center of the stirring paddle is provided with a conical head.
The utility model has the following beneficial effects:
1. the air sealing assembly is provided with three sealing structures to form a first sealing cavity and a second sealing cavity, the first sealing cavity is communicated with the water inlet pipeline, and the second sealing cavity is communicated with the pressure detection pipeline, so that the first two sealing structures have a sealing function, the latter sealing structure has a detection function, and when the pressure change in the second sealing cavity is detected, the first two sealing structures are damaged, and the corresponding sealing elements need to be replaced in time.
2. In order to avoid damage to inflated components and leakage of gas in the pot caused by explosion in the pot, the gas seal part of the utility model is provided with the single-lip rotary shaft seal, so that the inflated gas enters from the lip of the single-lip rotary shaft seal, the lip on the other side of the single-lip rotary shaft seal plays an anti-explosion role, and good sealing performance can be kept after explosion occurs.
3. Aiming at the problem of axial force generated by rotation of the stirring shaft, the bearing is used for bearing the axial force during explosion by increasing the structure of the bearing seat, and the final axial force is borne by the mounting bolt of the bearing seat, so that a plurality of connecting holes are arranged at the position and the high-strength bolt is used.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is within the scope of the present invention for those skilled in the art to obtain other drawings based on the drawings without inventive exercise.
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of the joint between the stirring shaft and the stirring paddle according to the present invention;
FIG. 3 is a cross-sectional view taken at A in FIG. 2;
FIG. 4 is an enlarged view of FIG. 2 at B;
in the figure, 1-motor, 2-speed reducer, 3-bearing seat, 4-air sealing component, 401-single-lip rotary shaft seal, 402-first reverse double-lip rotary shaft seal, 403-second reverse double-lip rotary shaft seal, 404-single-lip sealing ring, 405-first double-lip sealing ring, 406-first double-lip sealing ring, 407-pressure detection pipeline, 408-shaft seal installation seat, 409-sealing shaft sleeve, 410-water inlet and air inlet pipeline, 411-water discharge pipeline, 412-first sealing cavity, 413-second sealing cavity, 41-first shaft sealing part, 42-second shaft sealing part, 5-stirring paddle, 6-conical head, 7-stirring shaft and 8-bearing.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are merely for convenience of description and should not be construed as limitations of the embodiments of the present invention, which are not described in any more detail in the following embodiments.
The terms of direction and position of the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer to the direction and position of the attached drawings. Accordingly, the use of directional and positional terms is intended to illustrate and understand the present invention and is not intended to limit the scope of the present invention.
As shown in fig. 1 to 4, an embodiment of the present invention is provided:
the utility model provides a mixing system for having vexed ability of exploding wet process mixer granulator, includes motor 1, stirring rake 5 and (mixing) shaft 7, 7 one end of (mixing) shaft is connected with motor 1, and the other end is connected with stirring rake 5, 7 and 5 junctions of stirring rake are equipped with airtight subassembly 4, have the function of intaking and admitting air, drainage and pressure measurement.
The hermetic seal assembly 4 comprises a shaft seal mounting seat 408, the shaft seal mounting seat 408 is coaxially sleeved outside the stirring shaft 7, a single-lip rotary shaft seal 401, a first reverse double-lip rotary shaft seal 402 and a second reverse double-lip rotary shaft seal 403 are arranged between the shaft seal mounting seat 408 and the stirring shaft 7 at a certain interval in sequence along the direction from the stirring paddle 5 to the motor 1, a single-lip seal ring 404 is arranged in the single-lip rotary shaft seal 401, a first double-lip seal ring 405 is arranged in the first reverse double-lip rotary shaft seal 402, and a second double-lip seal ring 406 is arranged in the second reverse double-lip rotary shaft seal 403, so that a three-way sealing structure is formed, and the sealing performance is improved.
Meanwhile, a first sealing cavity 412 is formed between the single-lip rotary shaft seal 401 and the first reverse double-lip rotary shaft seal 402, a second sealing cavity 413 is formed between the first reverse double-lip rotary shaft seal 402 and the second reverse double-lip rotary shaft seal 403, the first sealing cavity 412 is provided with a water inlet pipeline 410 and a water discharge pipeline 411, and the second sealing cavity 413 is provided with a pressure detection pipeline 407; therefore, the first two sealing structures have a sealing function, the last sealing structure has a detection function, and when the pressure change in the second sealing cavity 413 is detected, the first two sealing structures are damaged, and the corresponding sealing elements need to be replaced in time.
The first sealing cavity 412 is communicated with the water inlet pipeline 410, the single-lip rotary shaft seal 401 is arranged on one side of the first sealing cavity 412, so that the charged gas enters from the lip of the single-lip rotary shaft seal 401, the other lip of the single-lip rotary shaft seal 401 plays an anti-explosion role, and good sealing performance can be kept after explosion occurs.
The sealing shaft sleeve 409 is sleeved outside the stirring shaft 7, and the lip openings of the single-lip rotary shaft seal 401, the first reverse double-lip rotary shaft seal 402 and the second reverse double-lip rotary shaft seal 403 are all abutted to the sealing shaft sleeve 409, so that triple sealing is formed, the sealing performance is improved, meanwhile, the heat insulation function is achieved, and the shaft seal piece is prevented from being damaged by high temperature generated by rotation of the stirring shaft 7.
The single-lip rotary shaft seal 401, the first reverse double-lip rotary shaft seal 402 and the second reverse double-lip rotary shaft seal 403 are respectively provided with a first shaft sealing part 41 and a second shaft sealing part 42, and the single-lip sealing ring 404, the first double-lip sealing ring 405 and the second double-lip sealing ring 406 are respectively clamped between the first shaft sealing part 41 and the second shaft sealing part 42; wherein, the single-lip sealing ring 404, the first double-lip sealing ring 405 and the second double-lip sealing ring 406 are pressure-resistant sealing rings; one side of each first shaft seal member 41 is connected with the shaft seal mounting seat 408 in a sealing manner, and a sealing ring is arranged at the joint, so that the sealing performance is improved.
The bearing seat 3 is coaxially sleeved outside the stirring shaft 7, and bearings 8 are arranged at two ends of the bearing seat 3 and connected with the stirring shaft 7; a plurality of connecting holes for bolt connection are formed in two ends of the bearing block 3; the axial force generated by the rotation of the stirring shaft 7 is borne by the bearing 8 through increasing the structure of the bearing seat 3, and the final axial force is borne by the mounting bolt of the bearing seat 3, so a plurality of connecting holes are arranged at the position and high-strength bolts are used.
And a speed reducer 2 is arranged between the motor 1 and the stirring shaft 7, so that the stirring speed is better controlled.
5 centers of stirring rake are equipped with conical head 6, make the easier stirring rake 5 that falls of expecting stir, promote stirring efficiency.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the utility model is not limited by the scope of the appended claims.
Claims (7)
1. A stirring system for a wet mixing granulator with smoldering explosion performance comprises a motor (1), a stirring paddle (5) and a stirring shaft (7), wherein one end of the stirring shaft (7) is connected with the motor (1), the other end of the stirring shaft (7) is connected with the stirring paddle (5), the stirring system is characterized in that a hermetic seal assembly (4) is arranged at the joint of the stirring shaft (7) and the stirring paddle (5), the hermetic seal assembly (4) comprises a shaft seal mounting seat (408), the shaft seal mounting seat (408) is coaxially sleeved outside the stirring shaft (7), a single-lip rotary shaft seal (401), a first reverse double-lip rotary shaft seal (402) and a second reverse double-lip rotary shaft seal (403) are arranged between the shaft seal mounting seat (408) and the stirring shaft (7) at a certain interval in sequence along the direction from the stirring paddle (5) to the motor (1), and a single-lip seal ring (404) is arranged in the single-lip rotary shaft seal (401), be equipped with first two lip sealing washer (405) in first anti-two lip rotatory bearing seal (402), be equipped with second two lip sealing washer (406) in the second anti-two lip rotatory bearing seal (403), form first seal chamber (412) between single lip rotatory bearing seal (401) and the first anti-two lip rotatory bearing seal (402), form second seal chamber (413) between first anti-two lip rotatory bearing seal (402) and the second anti-two lip rotatory bearing seal (403), first seal chamber (412) are equipped with inlet pipe way (410) and drain line (411), second seal chamber (413) are equipped with pressure measurement pipeline (407).
2. The stirring system for the wet mixing granulator with the smoldering explosion performance is characterized in that a sealing shaft sleeve (409) is sleeved outside the stirring shaft (7), and the lip mouths of the single-lip rotary shaft seal (401), the first reverse double-lip rotary shaft seal (402) and the second reverse double-lip rotary shaft seal (403) are abutted to the sealing shaft sleeve (409).
3. The stirring system for the wet mixing granulator with smoldering explosion performance according to claim 2, wherein the single-lip rotary shaft seal (401), the first reverse double-lip rotary shaft seal (402) and the second reverse double-lip rotary shaft seal (403) are respectively provided with a first shaft seal piece (41) and a second shaft seal piece (42), and the single-lip sealing ring (404), the first double-lip sealing ring (405) and the second double-lip sealing ring (406) are respectively clamped between the first shaft seal piece (41) and the second shaft seal piece (42).
4. The stirring system for the wet mixing granulator with smoldering explosion performance according to claim 1, wherein a bearing seat (3) is coaxially sleeved outside the stirring shaft (7), and bearings (8) are arranged at two ends of the bearing seat (3) and connected with the stirring shaft (7).
5. The stirring system for the wet mixing granulator with smoldering explosion performance as claimed in claim 4, wherein a plurality of connecting holes for bolt connection are arranged at two ends of the bearing seat (3).
6. The stirring system for the wet mixing granulator with smoldering explosion performance according to claim 1, characterized in that a speed reducer (2) is arranged between the motor (1) and the stirring shaft (7).
7. The stirring system for a wet mixing granulator with smoldering blasting performance according to claim 1, characterized in that the stirring paddle (5) is provided with a conical head (6) in the center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220407050.1U CN216879130U (en) | 2022-02-26 | 2022-02-26 | A mixing system for having stifled performance wet process mixing granulator that explodes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220407050.1U CN216879130U (en) | 2022-02-26 | 2022-02-26 | A mixing system for having stifled performance wet process mixing granulator that explodes |
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| Publication Number | Publication Date |
|---|---|
| CN216879130U true CN216879130U (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220407050.1U Active CN216879130U (en) | 2022-02-26 | 2022-02-26 | A mixing system for having stifled performance wet process mixing granulator that explodes |
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| Country | Link |
|---|---|
| CN (1) | CN216879130U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115228255A (en) * | 2022-08-04 | 2022-10-25 | 安徽雨辰机电制造有限公司 | Side-feeding type stirrer sealing device |
| CN115949750A (en) * | 2023-03-10 | 2023-04-11 | 江苏洁维生物设备股份有限公司 | Bioreactor (mixing) shaft sealing device |
-
2022
- 2022-02-26 CN CN202220407050.1U patent/CN216879130U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115228255A (en) * | 2022-08-04 | 2022-10-25 | 安徽雨辰机电制造有限公司 | Side-feeding type stirrer sealing device |
| CN115228255B (en) * | 2022-08-04 | 2023-09-15 | 安徽雨辰机电制造有限公司 | Side-entering stirrer sealing device |
| CN115949750A (en) * | 2023-03-10 | 2023-04-11 | 江苏洁维生物设备股份有限公司 | Bioreactor (mixing) shaft sealing device |
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