CN214390583U - Side coal bunker coal pulverizer overhauls device - Google Patents
Side coal bunker coal pulverizer overhauls device Download PDFInfo
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- CN214390583U CN214390583U CN202023031457.9U CN202023031457U CN214390583U CN 214390583 U CN214390583 U CN 214390583U CN 202023031457 U CN202023031457 U CN 202023031457U CN 214390583 U CN214390583 U CN 214390583U
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Abstract
The utility model discloses a side coal bunker coal pulverizer overhauls device relates to thermal power factory boiler powder process technical field, including main car, fixed single track and auxiliary car, the auxiliary car overhauls the electronic monospar hoist of striding for the coal pulverizer, elevation is the same with main car monospar overhead crane rail end elevation at the bottom of short rail and long rail, and the short rail extends to directly over the coal pulverizer, and two long rail symmetries set up the both sides at the coal pulverizer. The utility model discloses make coal pulverizer body part overhaul convenient nimble, be convenient for overhaul on the spot, be convenient for lift by crane great maintenance part perpendicularly, reduce to overhaul setting and structure roof beam requirement, the cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of thermal power factory boiler coal pulverizing system technique and specifically relates to a side coal bunker coal pulverizer overhauls device is applicable to thermal power factory intermediate speed coal pulverizer coal pulverizing system.
Background
The optimal arrangement of the main power house area of the thermal power plant has important significance for saving occupied area and reducing investment of the coal-fired power plant. Currently, three schemes are arranged between coal bunkers: front coal bunker, back coal bunker, side coal bunker. For many years, the former coal bunker is taken as a traditional coal bunker scheme and is always a main scheme for arrangement of domestic main plants; the rear coal bunker is applied less and is only in the concept stage; the main workshop of the lateral coal bunker scheme occupies a small area and has small volume, the relative distance between a steam turbine and a boiler is short, the using amount of pipelines is reduced, particularly the using amount of four pipelines is reduced, and the initial investment is saved. Therefore, in recent years, the side bunker scheme is gradually commonly applied to large units.
Most coal mills adopting the lateral coal bunker scheme are transversely arranged, and a set of rail passing hoisting device is generally adopted for overhauling the coal mills. As shown in the attached drawing, the cross-rail lifting device comprises a main vehicle and a plurality of auxiliary vehicles, and the number of the auxiliary vehicles is determined according to the number of the coal mills. This kind overhauls facility arrangement mode is more common, when coal pulverizer body part overhauls like the grinding roller, need adjust the interval of every coal pulverizer top auxiliary car and can realize lifting by crane. But when the motor is overhauled, the powder feeding pipeline is shielded, the auxiliary vehicle and the main vehicle are difficult to move right above the motor, and the motor cannot be vertically lifted if the motor needs to be overhauled, so that higher requirements on overhaul facilities and structural beams are met.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that needs to solve provides a side coal bunker coal pulverizer overhauls device for coal pulverizer body part overhauls convenient nimble, is convenient for overhaul on the spot, reduces to overhaul setting and structure roof beam requirement, and reduce cost is convenient for lift by crane perpendicularly.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the utility model provides a side coal bunker coal pulverizer overhauls device, includes main car and auxiliary car, still includes fixed single track, fixed single track is including establishing short rail and two long rails that are parallel to each other above the coal pulverizer, and short rail and long rail end elevation are the same with main car monospar suspension crane rail end elevation, and the short rail extends to the coal pulverizer directly over, and two long rail symmetries set up the both sides at the coal pulverizer. The utility model discloses technical scheme's further improvement lies in: the short rail is positioned right above the turning-out position of the motor and the grinding roller of the coal mill.
The utility model discloses technical scheme's further improvement lies in: the short rail is positioned right above the turning-out position of the motor and the grinding roller of the coal mill.
The utility model discloses technical scheme's further improvement lies in: the electric hoist is characterized by further comprising two single-beam cranes arranged on the main vehicle and the auxiliary vehicle, and an electric hoist is hung below each single-beam crane.
The utility model discloses technical scheme's further improvement lies in: the coal pulverizer also comprises a protection frame arranged around the coal pulverizer, wherein the protection frame comprises a bottom ring arranged at the bottom, a bottom wheel fixedly arranged on the lower surface of the bottom ring, a bottom rod fixedly connected to the bottom ring, an upper rod connected with the bottom rod, and a top ring arranged at the top and connected with the upper rod.
The utility model discloses technical scheme's further improvement lies in: the bottom ring and the top ring are C-shaped annular plates, a plurality of bottom rods are arranged on the bottom ring, and the bottom rods are uniformly distributed on the bottom ring along the circumference.
The utility model discloses technical scheme's further improvement lies in: the upper part rods are inserted in the bottom rods, and the combination of at least three groups of bottom rods and the upper part rods is a hydraulic rod device.
The utility model discloses technical scheme's further improvement lies in: the joint of the bottom rod and the upper rod is provided with a hinged wheel which is a ratchet wheel, the upper rod is provided with a pawl which is matched with the hinged wheel and is hinged, and the turning parts of all the bottom rods and the upper rod bend towards the coal mill.
The utility model discloses technical scheme's further improvement lies in: the bottom ring and the top ring are C-shaped annular plates with central angles of 180-270 degrees.
The utility model discloses technical scheme's further improvement lies in: the distance between the two long rails is the same as the distance between the two overhauling lifting lugs on the separator of the coal mill.
Due to the adoption of the technical scheme, the utility model discloses the technological progress who gains is:
the utility model discloses a cross rail crane owner car and fixed single track and combine together, the coal pulverizer overhauls and stride the mode that rail crane owner car and auxiliary vehicle combined together for coal pulverizer body part overhauls convenient nimble, is convenient for overhaul on the spot, reduces to overhaul setting and structural beam requirement, and reduce cost is convenient for lift by crane perpendicularly.
The upper part of the coal mill adopts a fixed single rail, so that the cost is lower. The coal mill separator, the motor, the grinding roller and the like are vertically lifted, so that the maintenance is convenient and the influence on the structure is small. Two electric hoists under the main car of the coal mill can be used separately or jointly, and the overhaul is flexible. The main car and the auxiliary car are combined together to realize the in-situ maintenance of the coal mill without influencing the passing. The distance between the 2 long rails is the same as the distance between the 2 overhauling lifting lugs on the separator of the coal mill, and the lifting of the separator can be realized. The 1 short rail is positioned right above the turning-out position of the motor and the grinding roller, so that the vertical lifting of the motor and the grinding roller can be realized.
The protective frame is favorable for preventing the part from falling in the hoisting process, ensures the unidirectional upward movement of the part, and increases the safety in the hoisting process. The bottom ring and the top ring are C-shaped annular plates, so that the stability of the protection frame is improved, and the protection frame is prevented from toppling over. The bottom ring and the top ring are formed by central angles of 180-270 degrees, so that the coal mill cannot move into the protection frame, and the flexibility of the equipment is improved. When the bottom rod and the upper rod form a hydraulic rod, the device is strong in stability, firm and durable, and the service life is prolonged. When the ratchet wheel pawl is arranged between the bottom rod and the upper rod, the structure is simple, the reverse rotation is effectively prevented, and the unidirectional ascending of the top ring is ensured. The turning part of the bottom rod and the upper rod bends towards the coal mill to form combined stress, so that the direction of the supporting force is changed, and the unidirectional rising of the top ring is ensured.
Drawings
FIG. 1 is a view of a conventional coal mill maintenance floor plan;
FIG. 2 is a cross-sectional view of a conventional coal pulverizer service;
FIG. 3 is a plan view of the coal mill of the present invention;
FIG. 4 is a schematic view of the structure of FIG. 3 at A-A;
FIG. 5 is another version of the schematic of the structure at A-A of FIG. 3;
FIG. 6 is a schematic view of the structure at B-B of FIG. 3;
FIG. 7 is a schematic view of the structure of FIG. 3 at C;
FIG. 8 is a schematic view of the structure of FIG. 3 at D;
FIG. 9 is a schematic view of the construction of the protective frame;
FIG. 10 is another form of schematic structural view of the protective frame;
the coal mill comprises a main vehicle 1, a main vehicle 2, an auxiliary vehicle 3, a coal mill 3a, a separator 3c, a motor 4, a protective frame 4a, a bottom ring 4b, a top ring 4c, bottom wheels 4d, a bottom rod 4e, an upper rod 4f, hinged wheels 5, a long rail 6, a short rail 7, an electric hoist 8, an electric single-beam hoisting single rail of the main vehicle 9, an electric single-beam hoisting single rail of the auxiliary vehicle 10, an electric single-beam suspension rail passing machine 11, a concrete stand column 12 and a maintenance span.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
as shown in fig. 1 to 9, fig. 3 is a plan layout diagram of the inspection method of the present patent, fig. 4 is a cross-sectional layout diagram of the inspection method of the present patent, fig. 5 is a cross-sectional layout diagram of the inspection method of the present patent, and fig. 6 is a cross-sectional layout diagram of the inspection method of the present patent. The utility model provides a side coal bunker coal pulverizer overhauls device, includes main car 1, fixed single track, short rail 6, long rail 5, fender bracket 4, changes the auxiliary car of conventional coal pulverizer maintenance scheme into 3 fixed single tracks, fixed single track 2 is including establishing short rail 6 and the long rail 5 in coal pulverizer 3 top, the auxiliary car overhauls the electronic monospar underslung crane of striding 12 for being located the coal pulverizer, overhauls and strides 12 for the regional scope of picture frame shown in figure 1, and two long rails 5 are parallel to each other, and short rail 6 and long rail 5 rail end elevation are the same with main car monospar underslung crane rail end elevation, and short rail 6 extends to directly over coal pulverizer 3, and two long rail 5 symmetries set up the both sides at coal pulverizer 3, short rail 6 is located coal pulverizer 3's motor 3c and the position of turning over, the interval of two long rails 5 is the same with two lugs intervals on coal pulverizer 3's separator 3a, the short rail 6 is a fixed single rail for motor maintenance, and the long rail 5 is a fixed single rail for maintenance such as a separator.
The coal mill 3 comprises a separator 3a, a grinding roller and a motor 3c, and 11 in the figure is a concrete column. Two single-beam cranes are arranged on the main vehicle 1 and the auxiliary vehicle 2, and an electric hoist 7 is arranged below each single-beam crane.
The main coal mill car 1 adopts 2 single-beam cranes, 2 electric hoists 7 are hung below the single-beam cranes respectively, and the 2 single-beam cranes can be used jointly or independently. The main vehicle 1 and the auxiliary vehicle electric single-beam hoisting single-rail 9 above the overhaul bay 12 realize rail-passing hoisting after rail-aligning, and the main vehicle electric single-beam hoisting single-rail 8 and the auxiliary vehicle electric single-beam hoisting single-rail 9 are provided with electric single-beam suspension rail-passing machines 10.
It is different to set up the maintenance auxiliary car with conventional coal pulverizer upper portion, the utility model discloses coal pulverizer upper portion sets up three fixed tracks of overhauing, and the rail end elevation is the same with main car monospar underslung crane rail end elevation. Two long rails 5 and one short rail 6 are arranged in the three rails, the distance between the two long rails is the same as the distance between the two overhauling lifting lugs of the separator 3a, and the separator 3a can be lifted; a short rail is positioned right above the turning-out positions of the motor 3c and the grinding roller, so that the motor 3a and the grinding roller can be vertically lifted. When the separator 3a is overhauled, the two single-beam cranes of the main vehicle 1 are used in a combined manner, and the two separators 3a can be pulled out after the distance between the two single-beam cranes and the separators are fixed on the single rail-to-rail; when the motor 3c or the grinding roller is overhauled, 1 single-beam crane of the main vehicle can be independently used for vertically hoisting the motor 3c or the grinding roller, and the motor 3c or the grinding roller can be pulled out after a single rail is fixed on the upper part of the motor 3 c. This maintenance mode can realize that maintenance parts such as coal pulverizer separator 3a, motor 3c, grinding roller lift by crane perpendicularly, and it is very convenient to overhaul, and can reduce to overhaul setting and structure roof beam requirement.
Coal pulverizer overhauls and strides 12 and sets up 1 auxiliary cars, and the auxiliary car takes 2 electronic monospar jack-up single tracks 9 of auxiliary cars, and auxiliary car rail bottom elevation is the same with main car rail bottom elevation, and when the coal pulverizer overhauls the part and pulls out the back, main car and auxiliary car will overhaul the part with the rail and place in overhauing and stride 12, can realize overhauing the part and overhauing on the spot, and do not influence the maintenance passageway current, overhaul convenient nimble.
The fender bracket 4 sets up around coal pulverizer 3, and fender bracket 4 includes end ring 4a, return pulley 4c, sill bar 4d, upper portion pole 4e, apical ring 4b, and end ring 4a sets up in the bottom, and return pulley 4c fixed mounting is on end ring 4a lower surface, and sill bar 4d fixed connection is on end ring 4a, and upper portion pole 4e is connected with sill bar 4d, and apical ring 4b sets up at the top, and apical ring 4b is connected with upper portion pole 4 e. The bottom ring 4a and the top ring 4b are C-shaped annular plates, the bottom rods 4d are arranged in a plurality, the bottom rods 4d are uniformly distributed on the bottom ring 4a along the circumference, and the bottom ring 4a and the top ring 4b are C-shaped annular plates with central angles ranging from 180 degrees to 270 degrees.
In addition to the above, the remaining structure of the protective frame 4 has two forms. The structure of the first form of the protection frame 4 adopts a hydraulic rod structure, the upper rod 4e is inserted in the bottom rod 4d, and the combination of at least three groups of bottom rods 4d and upper rods 4e is a hydraulic rod device.
The second form of the protection frame 4 is provided with a ratchet wheel and pawl structure capable of rotating in a single direction, a hinge wheel 4f is arranged at the joint of the bottom rod 4d and the upper rod 4e, the hinge wheel 4f is a ratchet wheel, a pawl which is matched with the hinge wheel 4f and is in hinge connection is arranged on the upper rod 4e, and the turning positions of all the bottom rods 4d and the upper rod 4e bend towards the coal mill 3.
Claims (9)
1. The utility model provides a side coal bunker coal pulverizer overhauls device, includes main car (1) and auxiliary car (2), its characterized in that: still including fixed single track, fixed single track is including establishing short rail (6) and two long rails (5) that are parallel to each other above coal pulverizer (3), and short rail (6) and long rail (5) rail end elevation are the same with main car monospar suspension crane rail end elevation, and short rail (6) extend to coal pulverizer (3) directly over, and two long rails (5) symmetry set up the both sides in coal pulverizer (3).
2. The side bunker coal pulverizer servicing apparatus of claim 1, wherein: the short rail (6) is positioned right above the turning-out position of the motor (3 c) and the grinding roller of the coal grinding machine (3).
3. The side bunker coal pulverizer servicing apparatus of claim 1, wherein: the electric hoist is characterized by further comprising two single-beam cranes arranged on the main vehicle (1) and the auxiliary vehicle (2), and an electric hoist (7) is hung below each single-beam crane.
4. The side bunker coal pulverizer servicing apparatus of claim 1, wherein: the coal pulverizer also comprises a protection frame (4) arranged around the coal pulverizer (3), wherein the protection frame (4) comprises a bottom ring (4 a) arranged at the bottom, a bottom wheel (4 c) fixedly arranged on the lower surface of the bottom ring (4 a), a bottom rod (4 d) fixedly connected onto the bottom ring (4 a), an upper rod (4 e) connected with the bottom rod (4 d), and a top ring (4 b) arranged at the top and connected with the upper rod (4 e).
5. The side bunker coal pulverizer servicing apparatus of claim 4, wherein: the bottom ring (4 a) and the top ring (4 b) are C-shaped annular plates, a plurality of bottom rods (4 d) are arranged, and the bottom rods (4 d) are uniformly distributed on the bottom ring (4 a) along the circumference.
6. The side bunker coal pulverizer servicing apparatus of claim 5, wherein: the upper rod (4 e) is inserted in the bottom rod (4 d), and the combination of at least three groups of bottom rods (4 d) and the upper rod (4 e) is a hydraulic rod device.
7. The side bunker coal pulverizer servicing apparatus of claim 5, wherein: the joint of the bottom rod (4 d) and the upper rod (4 e) is provided with a hinged wheel (4 f), the hinged wheel (4 f) is a ratchet wheel, the upper rod (4 e) is provided with a pawl which is matched with the hinged wheel (4 f) and is in hinged connection, and the turning positions of all the bottom rods (4 d) and the upper rod (4 e) bend towards the coal mill (3).
8. The side bunker coal pulverizer servicing apparatus of claim 5, wherein: the bottom ring (4 a) and the top ring (4 b) are C-shaped annular plates with central angles of 180-270 degrees.
9. The side bunker coal pulverizer servicing apparatus of claim 1, wherein: the distance between the two long rails (5) is the same as the distance between the two overhauling lifting lugs on the separator (3 a) of the coal mill (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023031457.9U CN214390583U (en) | 2020-12-16 | 2020-12-16 | Side coal bunker coal pulverizer overhauls device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023031457.9U CN214390583U (en) | 2020-12-16 | 2020-12-16 | Side coal bunker coal pulverizer overhauls device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214390583U true CN214390583U (en) | 2021-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023031457.9U Active CN214390583U (en) | 2020-12-16 | 2020-12-16 | Side coal bunker coal pulverizer overhauls device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214390583U (en) |
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2020
- 2020-12-16 CN CN202023031457.9U patent/CN214390583U/en active Active
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