CN109027234B - Wet ball mill seal structure and wet ball mill - Google Patents
Wet ball mill seal structure and wet ball mill Download PDFInfo
- Publication number
- CN109027234B CN109027234B CN201810908689.6A CN201810908689A CN109027234B CN 109027234 B CN109027234 B CN 109027234B CN 201810908689 A CN201810908689 A CN 201810908689A CN 109027234 B CN109027234 B CN 109027234B
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- ball mill
- sealing
- wet ball
- sleeve
- straight sleeve
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- 238000007789 sealing Methods 0.000 claims abstract description 99
- 210000004907 gland Anatomy 0.000 claims abstract description 38
- 239000000945 filler Substances 0.000 claims abstract description 11
- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- 239000002002 slurry Substances 0.000 claims abstract description 10
- 238000012856 packing Methods 0.000 claims description 19
- 239000013013 elastic material Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000010425 asbestos Substances 0.000 claims description 4
- 235000014121 butter Nutrition 0.000 claims description 4
- 229910052895 riebeckite Inorganic materials 0.000 claims description 4
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 239000003381 stabilizer Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 235000015278 beef Nutrition 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/26—Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings
- F16J15/30—Sealings between relatively-moving surfaces with stuffing-boxes for rigid sealing rings with sealing rings made of carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention belongs to the technical field of mechanical equipment, and particularly relates to a sealing structure of a wet ball mill, which comprises a feed pipe and a grinding head for feeding, wherein a straight sleeve pipe is arranged to extend from the end part of the feed pipe to the grinding head, and a sealing disc is arranged on the inner peripheral wall of the grinding head; the sealing disc is provided with an annular high platform extending towards the direction of the feed inlet, the straight sleeve is inserted into the annular high platform, and a sealing cavity for containing filler is formed between the outer periphery of the straight sleeve and the inner periphery of the annular high platform; the opening of the sealing cavity is provided with a circular ring gland concentric with the straight sleeve, the inner bottom surface of the gland is provided with a boss, and the boss is embedded into the sealing cavity to enable the straight sleeve to be sealed with the sealing disc and fixedly connected with the sealing disc. The invention also provides a wet ball mill with the wet ball mill sealing structure, which has good sealing performance and reduces slurry leakage.
Description
Technical Field
The invention belongs to the technical field of mechanical equipment, and particularly relates to a wet ball mill sealing structure and a wet ball mill.
Background
At present, the wet ball mill is widely applied to the production industries of desulfurization systems, cement, silicate products, novel building materials, refractory materials, chemical fertilizers, black and nonferrous metal mineral processing, glass ceramics and the like, and plays an indispensable role.
However, existing wet ball mills suffer from some structural drawbacks. The feeding part is simple in sealing mode or lacks effective sealing, a certain liquid level exists in the barrel of the wet ball mill when the equipment is operated, once the liquid level in the barrel is increased, the slurry leakage phenomenon is very easy to occur at the feeding part in operation, so that the sanitary condition of a construction site is poor, the cleaning workload is large, and the waste of materials can be caused.
The present invention has been made in view of this.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects in the prior art and providing a wet ball mill sealing structure and a wet ball mill.
In order to solve the technical problems, the invention adopts the basic conception of the technical scheme that:
a wet ball mill sealing structure comprises a feed pipe and a grinding head for feeding, wherein a straight sleeve is arranged to extend from the end part of the feed pipe to the grinding head, and a sealing disc is arranged on the inner peripheral wall of the grinding head;
the sealing disc is provided with an annular high platform extending towards the direction of the feed inlet, the straight sleeve is inserted into the annular high platform, and a sealing cavity for containing filler is formed between the outer periphery of the straight sleeve and the inner periphery of the annular high platform;
the opening of the sealing cavity is provided with a circular ring gland concentric with the straight sleeve, the inner bottom surface of the gland is provided with a boss, and the boss is embedded into the sealing cavity to enable the straight sleeve to be sealed with the sealing disc and fixedly connected with the sealing disc.
As one implementation mode of the invention, an inner sleeve is sleeved outside the straight sleeve, a cushion sleeve is sleeved outside the inner sleeve, one end of the cushion sleeve is propped against the inner bottom surface of the annular gland, and a groove is arranged, and the groove is matched with the boss, so that the cushion sleeve is tightly connected with the gland.
As one implementation mode of the invention, an annular check ring is arranged on the contact surface of the straight sleeve and the annular high platform, and corresponding threaded holes are arranged on the gland, the cushion sleeve, the check ring and the contact surface, and the threaded holes are connected through bolts so that the straight sleeve is fixedly connected with the grinding head.
As one embodiment of the invention, the filler contained in the sealing cavity is asbestos packing or/and butter packing; preferably, the straight sleeve has a circular cross-section and is arranged concentrically with the annular plateau of the sealing disk with respect to the central axis of the grinding head.
As one implementation mode of the invention, the boss of the gland is a cylinder, at least one circle of annular grooves are arranged on the circumferential wall of the cylinder, and an elastic ring is arranged in each annular groove, so that the boss is in interference connection with the inner periphery of the annular plateau;
preferably, the circumferential wall of the cylinder is provided with concave holes in a staggered manner along the central axis direction, and elastic materials protruding out of the circumferential wall of the cylinder are arranged in the concave holes.
As one embodiment of the invention, the inner periphery of the annular plateau and the outer periphery of the straight sleeve are respectively provided with matched thread structures at the contact positions;
or, the inner periphery of the annular high platform is provided with a clamping groove, the outer periphery of the straight sleeve is correspondingly provided with a buckle, and the straight sleeve is connected with the annular high platform through the clamping groove and the buckle.
As one embodiment of the present invention, the outer periphery of the cushion cover is provided with an elastic protrusion toward the inner periphery of the annular plateau; preferably, the retainer ring is made of elastic material, and one surface contacted with the annular plateau is provided with elastic protrusions.
Another object of the present invention is to provide a wet ball mill provided with any one of the wet ball mill sealing structures described above.
As one embodiment of the invention, the wet ball mill is provided with a foundation frame for bearing the feeding pipe, the foundation frame comprises a supporting part and supporting feet, the supporting part is provided with an elastic buffer structure, and the supporting feet are welded and fixed on the ground.
As an embodiment of the present invention, an annular diversion trench is provided around the outer periphery of the sealing structure of the wet ball mill as described above, and a diversion pipe is provided to guide the leakage slurry to the feed pipe or the grinding port;
preferably, the diversion trench comprises a first runner for guiding in water flow and a second runner for guiding out leakage slurry, the diversion pipe is communicated with the second runner, and the first runner is used for supplying water flow to the second runner for flushing at intervals of set time.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects: the technical scheme of the invention improves the tightness of the connection structure of the feeding pipe and the grinding head, has better sealing effect, reduces slurry leakage, avoids pollution to the operation environment and saves materials.
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:
FIG. 1 is a schematic view of a wet ball mill seal according to the present invention;
fig. 2 is a top view of fig. 1 of the present invention.
In the figure: 1. a cushion cover; 2. a gland; 3. an inner sleeve; 4. and (5) a retainer ring.
It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention, and the following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
A sealing structure of a wet ball mill is shown in figure 1, and comprises a feed pipe and a grinding head for feeding, wherein a straight sleeve pipe is arranged to extend from the end part of the feed pipe to the grinding head, and a sealing disc is arranged on the inner peripheral wall of the grinding head;
the sealing disc is provided with an annular high platform extending towards the direction of the feed inlet, the straight sleeve is inserted into the annular high platform, and a sealing cavity for containing filler is formed between the outer periphery of the straight sleeve and the inner periphery of the annular high platform;
the opening of the sealing cavity is provided with a circular ring gland 2 concentric with the straight sleeve, the inner bottom surface of the gland 2 is provided with a boss, and the boss is embedded into the sealing cavity to enable the straight sleeve to be sealed with the sealing disc and fixedly connected with the sealing disc.
Fig. 2 is a top view of the structure shown in fig. 1.
An inner sleeve 3 is sleeved outside the straight sleeve, a cushion sleeve 1 is sleeved outside the inner sleeve 3, one end of the cushion sleeve 1 abuts against the inner bottom surface of the circular ring gland 2 and is provided with a groove, and the groove is matched with the boss, so that the cushion sleeve 1 is tightly connected with the gland 2.
The contact surface of the straight sleeve and the annular high platform is provided with an annular check ring 4, and the gland 2, the cushion cover 1, the check ring 4 and the contact surface are provided with corresponding threaded holes, and the threaded holes are connected through bolts so that the straight sleeve is fixedly connected with the grinding head.
The packing contained in the sealing cavity is asbestos packing, the packing specification is 14 x 14, the packing quantity is three circles, and the straight sleeve pipe is provided with a circular cross section and is concentrically arranged with the annular high platform of the sealing disc relative to the central shaft of the grinding head.
The boss of the gland 2 is a cylinder, at least one ring-shaped groove is arranged on the circumferential wall of the cylinder, and an elastic ring is arranged in the ring-shaped groove, so that the boss is in interference connection with the inner periphery of the annular high platform;
preferably, the circumferential wall of the cylinder is provided with concave holes in a staggered manner along the central axis direction, and elastic materials protruding out of the circumferential wall of the cylinder are arranged in the concave holes.
The inner periphery of the annular high platform and the outer periphery of the straight sleeve are respectively provided with matched thread structures at the contact positions; or, the inner periphery of the annular high platform is provided with a clamping groove, the outer periphery of the straight sleeve is correspondingly provided with a buckle, and the straight sleeve is connected with the annular high platform through the clamping groove and the buckle.
The outer periphery of the cushion cover 1 is provided with elastic protrusions towards the inner periphery of the annular high platform; preferably, the retainer ring 4 is made of an elastic material, and the surface contacting with the annular plateau is provided with an elastic protrusion.
Another object of the present invention is to provide a wet ball mill provided with the wet ball mill sealing structure according to the above.
The wet ball mill sets up the foundation frame that is used for bearing inlet pipe, the foundation frame includes supporting part and stabilizer blade, and supporting part sets up elastic buffer structure, stabilizer blade welded fastening subaerial.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects: the technical scheme of the invention improves the tightness of the connection structure of the feeding pipe and the grinding head, has better sealing effect, reduces slurry leakage, avoids pollution to the operation environment and saves materials.
Example 2
A sealing structure of a wet ball mill is shown in figure 1, and comprises a feed pipe and a grinding head for feeding, wherein a straight sleeve pipe is arranged to extend from the end part of the feed pipe to the grinding head, and a sealing disc is arranged on the inner peripheral wall of the grinding head;
the sealing disc is provided with an annular high platform extending towards the direction of the feed inlet, the straight sleeve is inserted into the annular high platform, and a sealing cavity for containing filler is formed between the outer periphery of the straight sleeve and the inner periphery of the annular high platform;
the opening of the sealing cavity is provided with a circular ring gland 2 concentric with the straight sleeve, the inner bottom surface of the gland 2 is provided with a boss, and the boss is embedded into the sealing cavity to enable the straight sleeve to be sealed with the sealing disc and fixedly connected with the sealing disc.
The depth of the sealing cavity reaches 45mm, the filling amount of the filler can be increased, and the sealing effect is better.
An inner sleeve 3 is sleeved outside the straight sleeve, a cushion sleeve 1 is sleeved outside the inner sleeve 3, one end of the cushion sleeve 1 abuts against the inner bottom surface of the circular ring gland 2 and is provided with a groove, and the groove is matched with the boss, so that the cushion sleeve 1 is tightly connected with the gland 2.
The contact surface of the straight sleeve and the annular high platform is provided with an annular check ring 4, and the gland 2, the cushion cover 1, the check ring 4 and the contact surface are provided with corresponding threaded holes, and the threaded holes are connected through bolts so that the straight sleeve is fixedly connected with the grinding head.
The structure can ensure that the straight sleeve and the grinding head are connected more firmly and tightly.
The packing contained in the sealing cavity is asbestos packing or/and butter packing. Preferably, the filler size is 14 x 14 and the filler amount is three weeks.
The straight sleeve has a circular cross section and is arranged concentrically with the annular plateau of the sealing disk with respect to the central axis of the grinding head. Concentricity of the feed pipe and the sealing disc of the grinding head is adjusted, uniform dynamic and static gaps are ensured, and sealing effect is enhanced.
The inner periphery of the annular high platform and the outer periphery of the straight sleeve are respectively provided with matched thread structures at positions close to the end parts.
The outer periphery of the cushion cover 1 is provided with elastic protrusions towards the inner periphery direction of the annular plateau.
The retainer ring 4 is made of elastic material, and one surface contacted with the annular plateau is provided with an elastic protrusion.
The elastic protrusions have the sealing effect after being installed and fastened, abrasion consumption among components can be reduced, sealing failure caused by long-term abrasion is avoided, and service time is prolonged.
Another object of the present invention is to provide a wet ball mill provided with the wet ball mill sealing structure according to any one of the above.
As one embodiment of the invention, a foundation frame for supporting a feed pipe is provided, the foundation frame comprises a supporting part and supporting feet, the supporting part is provided with an elastic buffer structure, and the supporting feet are welded and fixed on the ground. The base frame ensures that the feeding pipe does not displace, thereby ensuring concentricity of the feeding pipe and the sealing disc and preventing sealing failure.
Example 3
This embodiment is a further definition or optimization of the technical solution of embodiment 1 or embodiment 2.
A sealing structure of a wet ball mill is shown in figure 1, and comprises a feed pipe and a grinding head for feeding, wherein a straight sleeve pipe is arranged to extend from the end part of the feed pipe to the grinding head, and a sealing disc is arranged on the inner peripheral wall of the grinding head;
the sealing disc is provided with an annular high platform extending towards the direction of the feed inlet, the straight sleeve is inserted into the annular high platform, and a sealing cavity for containing filler is formed between the outer periphery of the straight sleeve and the inner periphery of the annular high platform;
the opening of the sealing cavity is provided with a circular ring gland 2 concentric with the straight sleeve, the inner bottom surface of the gland 2 is provided with a boss, and the boss is embedded into the sealing cavity to enable the straight sleeve to be sealed with the sealing disc and fixedly connected with the sealing disc.
An inner sleeve 3 is sleeved outside the straight sleeve, a cushion sleeve 1 is sleeved outside the inner sleeve 3, one end of the cushion sleeve 1 abuts against the inner bottom surface of the circular ring gland 2 and is provided with a groove, and the groove is matched with the boss, so that the cushion sleeve 1 is tightly connected with the gland 2.
The contact surface of the straight sleeve and the annular high platform is provided with an annular check ring 4, and the gland 2, the cushion cover 1, the check ring 4 and the contact surface are provided with corresponding threaded holes, and the threaded holes are connected through bolts so that the straight sleeve is fixedly connected with the grinding head.
The packing contained in the sealing cavity is a beef tallow packing, and the straight sleeve pipe is provided with a circular section and is concentrically arranged with the annular high platform of the sealing disc relative to the central shaft of the grinding head.
The boss of the gland 2 is a cylinder, at least one ring-shaped groove is arranged on the circumferential wall of the cylinder, and an elastic ring is arranged in the ring-shaped groove, so that the boss is in interference connection with the inner periphery of the annular boss.
Another object of the present invention is to provide a wet ball mill provided with the wet ball mill sealing structure according to the above.
The wet ball mill sets up the foundation frame that is used for bearing inlet pipe, the foundation frame includes supporting part and stabilizer blade, and supporting part sets up elastic buffer structure, stabilizer blade welded fastening subaerial.
An annular diversion trench is arranged around the periphery of the sealing structure of the wet ball mill, and is provided with a diversion pipe for guiding leakage slurry to a feed pipe or a grinding port;
the diversion trench comprises a first runner for leading in water flow and a second runner for leading out leakage pulp, the diversion pipe is communicated with the second runner, and the first runner is used for providing water flow for the second runner for flushing at intervals of set time.
The wet ball mill can guide the leaked limited slurry to the feed pipe or the grinding head, so that pollution caused by dripping on the ground is avoided, and raw materials are saved. The arrangement of the first flow channel and the second flow channel can ensure that the leakage pulp smoothly enters the feeding pipe or the grinding head, and can prevent the corrosion caused by long-time residual of the pulp in the diversion trench.
Example 4
This embodiment is a further definition or optimization of the technical solutions of embodiments 1, 2 or 3.
A wet ball mill sealing structure comprises a feed pipe and a grinding head for feeding, wherein a straight sleeve is arranged to extend from the end part of the feed pipe to the grinding head, and a sealing disc is arranged on the inner peripheral wall of the grinding head;
the sealing disc is provided with an annular high platform extending towards the direction of the feed inlet, the straight sleeve is inserted into the annular high platform, and a sealing cavity for containing filler is formed between the outer periphery of the straight sleeve and the inner periphery of the annular high platform;
the opening of the sealing cavity is provided with a circular ring gland 2 concentric with the straight sleeve, the inner bottom surface of the gland 2 is provided with a boss, and the boss is embedded into the sealing cavity to enable the straight sleeve to be sealed with the sealing disc and fixedly connected with the sealing disc.
An inner sleeve 3 is sleeved outside the straight sleeve, a cushion sleeve 1 is sleeved outside the inner sleeve 3, one end of the cushion sleeve 1 abuts against the inner bottom surface of the circular ring gland 2 and is provided with a groove, and the groove is matched with the boss, so that the cushion sleeve 1 is tightly connected with the gland 2.
The contact surface of the straight sleeve and the annular high platform is provided with an annular check ring 4, and the gland 2, the cushion cover 1, the check ring 4 and the contact surface are provided with corresponding threaded holes, and the threaded holes are connected through bolts so that the straight sleeve is fixedly connected with the grinding head.
The packing that holds in the seal chamber is butter packing, and the packing specification is 14 x 14, and the packing volume is three week circles, and straight sleeve pipe has circular cross-section and sets up with annular plateau of sealing disk concentric with respect to the center pin of bistrique.
The boss of the gland 2 is a cone frustum body, the diameter of the circular section of the cone frustum body is gradually reduced along the direction of inserting the cone frustum body into the sealing cavity, at least one circle of annular groove is formed in the peripheral wall of the cone frustum body, and an elastic ring is arranged in the annular groove, so that the boss is in interference connection with the inner periphery of the annular boss.
Preferably, concave holes are distributed on the peripheral wall of the truncated cone body along the central axis direction in a staggered manner, and elastic materials protruding out of the peripheral wall of the truncated cone body are arranged in the concave holes.
The inner periphery of the annular high platform and the outer periphery of the straight sleeve are respectively provided with matched thread structures at the contact positions; or, the inner periphery of the annular high platform is provided with a clamping groove, the outer periphery of the straight sleeve is correspondingly provided with a buckle, and the straight sleeve is connected with the annular high platform through the clamping groove and the buckle.
The outer periphery of the cushion cover 1 is provided with elastic protrusions towards the inner periphery direction of the annular high platform, the retainer ring 4 is made of elastic materials, and one surface contacted with the annular high platform is provided with the elastic protrusions.
Another object of the present invention is to provide a wet ball mill provided with the wet ball mill sealing structure according to the above.
The wet ball mill sets up the foundation frame that is used for bearing inlet pipe, the foundation frame includes supporting part and stabilizer blade, and supporting part sets up elastic buffer structure, stabilizer blade welded fastening subaerial.
The wet ball mill is characterized in that a foundation frame for supporting the feeding pipe is arranged below the feeding pipe and comprises a supporting part and supporting feet, wherein the supporting part is provided with an elastic buffer structure, and the supporting feet are welded and fixed on the ground.
The supporting part is a semicircular structure with an opening at the upper end, and the inner surface of the semicircular structure is provided with elastic ribs parallel to the direction of the central axis and perpendicular to the direction of the central axis. The elastic rib can reduce vibration displacement of the blanking pipe during the operation of the ball mill, ensure concentricity of the feeding pipe and the sealing disc and prevent damage to tightness.
The stabilizer blade is the tripod, and a triangle summit sets up in the central point of semicircle annular structure, and 2 triangle summit welding are on the bottom surface in addition.
The foregoing description is only illustrative of the preferred embodiment of the present invention, and is not to be construed as limiting the invention, but is to be construed as limiting the invention to any and all simple modifications, equivalent variations and adaptations of the embodiments described above, which are within the scope of the invention, may be made by those skilled in the art without departing from the scope of the invention.
Claims (8)
1. The sealing structure of the wet ball mill comprises a feed pipe and a grinding head for feeding, and is characterized in that a straight sleeve is arranged to extend from the end part of the feed pipe to the grinding head, and a sealing disc is arranged on the inner peripheral wall of the grinding head;
the sealing disc is provided with an annular high platform extending towards the direction of the feed inlet, the straight sleeve is inserted into the annular high platform, and a sealing cavity for containing filler is formed between the outer periphery of the straight sleeve and the inner periphery of the annular high platform;
the opening of the sealing cavity is provided with a circular ring gland (2) concentric with the straight sleeve, the inner bottom surface of the gland (2) is provided with a boss, the boss is embedded into the sealing cavity to enable the straight sleeve to be sealed with the sealing disc and fixedly connected with the sealing disc, the boss of the gland (2) is a cylinder, the circumferential wall of the cylinder is provided with at least one ring-shaped groove, and an elastic ring is arranged in the ring-shaped groove to enable the boss to be in interference connection with the inner circumference of the annular high platform;
an inner sleeve (3) is sleeved outside the straight sleeve, a cushion sleeve (1) is sleeved outside the inner sleeve (3), one end of the cushion sleeve (1) is propped against the inner bottom surface of the annular gland (2) and provided with a groove, and the groove is matched with the boss, so that the cushion sleeve (1) is tightly connected with the gland (2);
the contact surface of the straight sleeve and the annular high table is provided with an annular check ring (4), and the gland (2), the cushion sleeve (1), the check ring (4) and the contact surface are provided with corresponding threaded holes, and the threaded holes are connected through bolts so that the straight sleeve is fixedly connected with the grinding head;
the periphery of the sealing structure of the wet ball mill is provided with an annular diversion trench, the diversion trench is provided with a diversion pipe for guiding leakage slurry to a feed pipe or a grinding port, the diversion trench comprises a first runner for guiding in water flow and a second runner for guiding out leakage slurry, the diversion pipe is communicated with the second runner, and the first runner is used for providing water flow for the second runner for flushing at intervals of set time;
the packing contained in the sealing cavity is asbestos packing or/and butter packing.
2. A wet ball mill sealing structure according to claim 1, wherein the straight sleeve has a circular cross section and is disposed concentrically with the annular plateau of the sealing disk with respect to the central axis of the grinding head.
3. The sealing structure of a wet ball mill according to claim 1, wherein the circumferential wall of the cylinder is provided with concave holes in a staggered manner along the central axis direction, and elastic materials protruding from the circumferential wall of the cylinder are arranged in the concave holes.
4. A wet ball mill sealing structure according to claim 1, wherein the inner periphery of the annular plateau and the outer periphery of the straight sleeve are provided with matched screw thread structures at the positions where they are in contact with each other, respectively;
or, the inner periphery of the annular high platform is provided with a clamping groove, the outer periphery of the straight sleeve is correspondingly provided with a buckle, and the straight sleeve is connected with the annular high platform through the clamping groove and the buckle.
5. A wet ball mill sealing structure according to claim 1, wherein the outer periphery of the packing (1) is provided with elastic protrusions toward the inner periphery of the annular plateau.
6. A wet ball mill sealing structure according to claim 5, characterized in that the retainer ring (4) is made of an elastic material, and the side in contact with the annular plateau is provided with an elastic protrusion.
7. A wet ball mill characterized in that a wet ball mill sealing structure according to any one of claims 1-6 is provided.
8. A wet ball mill according to claim 7, wherein a foundation frame for supporting the feed pipe is provided, the foundation frame including a support portion and a leg, the support portion being provided with an elastic buffer structure, the leg being welded to the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810908689.6A CN109027234B (en) | 2018-08-10 | 2018-08-10 | Wet ball mill seal structure and wet ball mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810908689.6A CN109027234B (en) | 2018-08-10 | 2018-08-10 | Wet ball mill seal structure and wet ball mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109027234A CN109027234A (en) | 2018-12-18 |
| CN109027234B true CN109027234B (en) | 2024-04-02 |
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| CN201810908689.6A Active CN109027234B (en) | 2018-08-10 | 2018-08-10 | Wet ball mill seal structure and wet ball mill |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111604132A (en) * | 2020-06-11 | 2020-09-01 | 山东腾飞机电科技有限公司 | Gypsum crushing mill |
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| CN109027234A (en) | 2018-12-18 |
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