Boiler slag crusher

Abstract

The utility model provides a boiler slag crusher which comprises a coal slag chamber body, a main rotating shaft is arranged in a discharging cavity of the coal slag chamber body, and crushing assemblies are evenly distributed on the periphery of the main rotating shaft. The crushing assembly comprises a fixing seat, a crushing assembly and a driving assembly, a center hole of the fixing seat is fixedly connected with the main rotating shaft, and a T-shaped groove is formed in the fixing seat; the utility model relates to the technical field of slag crushers, after the fixing piece is detached, then the crushing fin is moved to be separated from the T-shaped groove, and a new crushing fin is replaced, the crushing fin is inserted into the T-shaped groove, and the crushing fin is fixed on the fixing piece. The mounting position of the crushing fin in the fixing seat is fixed by using the fixing piece, and the crushing fin is detachable, so that the traditional welding connection mode of the crushing fin and the main rotating shaft is changed, and the aged crushing fin is convenient to replace and maintain.

Description

Technical Field

[0001] This utility model relates to the field of slag crusher technology, and in particular to a boiler slag crusher. Background Technology

[0002] Boiler slag crusher is a key piece of equipment for processing slag in coal-fired boiler systems. Its core function is to crush high-temperature slag to a suitable particle size to meet the requirements of transportation, storage or secondary utilization. Traditional slag crushers generally adopt a mechanical structure of "motor-driven rotating shaft and fixed blade extrusion crushing". By uniformly welding metal blades on the rotating shaft, crushing is achieved by the extrusion action between the blades and the slag chamber wall during rotation.

[0003] The metal spade is exposed to the high temperature environment of the slag chamber for a long time, and it needs to be in hard contact with the slag to break it. This makes the metal spade prone to damage and deformation. In addition, the shaft is welded to the metal spade, making it difficult to replace the damaged metal spade from the shaft, which affects the metal spade's slag treatment effect. Utility Model Content

[0004] The purpose of this utility model is to provide a boiler slag crusher, which solves the problem that the rotating shaft is welded to the metal blades, and the metal blades are prone to damage and deformation after long-term use, and the damaged metal blades are not easy to replace from the rotating shaft.

[0005] This utility model provides a boiler slag crusher, comprising: a slag chamber body, wherein a main rotating shaft is disposed in the feeding chamber of the slag chamber body, and crushing components are evenly distributed on the outer periphery of the main rotating shaft;

[0006] The crushing component includes:

[0007] A fixed base, wherein the center hole of the fixed base is fixedly connected to the main rotating shaft, and the fixed base is provided with a T-slot;

[0008] The crushing blades are connected to the T-slots by insertion, and the crushing blades are staggered at a 120° phase angle based on the fixed base.

[0009] The outer periphery of the fixing base is provided with a fixing member, which is used to fix the installation position of the crushing blade.

[0010] Preferably, the fastener includes:

[0011] A locking ring is used to close the open end of the T-slot. The central hole of the locking ring is slidably connected to the main rotating shaft. A positioning pin is disposed in the locking ring, and the locking ring is connected to the fixed seat through the positioning pin.

[0012] Preferably, an extrusion assembly is provided below the main rotating shaft, the extrusion assembly being used for secondary crushing of the residue;

[0013] The extrusion assembly includes:

[0014] A guide plate is located below the main rotating shaft. A crossbar is disposed in the guide plate, and the guide plate is rotatably connected to the slag chamber body through the crossbar.

[0015] The bottom end of the guide plate is equipped with a driving component, which is used to push the end of the guide plate away from the crossbar to deflect up and down.

[0016] A baffle plate, both ends of which are fixedly connected to the main body of the slag chamber, and the inclination angle of the baffle plate is adapted to that of the guide plate.

[0017] Preferably, the driving element includes:

[0018] A secondary rotating shaft is connected to the slag chamber body via a bearing. The input end of the secondary rotating shaft is equipped with a linkage component, and the main rotating shaft drives the secondary rotating shaft to rotate through the linkage component.

[0019] An eccentric tube is fixedly connected to the outer periphery of the secondary rotating shaft, and the outer periphery of the eccentric tube abuts against the guide plate.

[0020] Preferably, the linkage component includes:

[0021] The first grooved wheel is fixedly connected to the input end of the secondary rotating shaft;

[0022] The second grooved wheel is fixedly connected to the output end of the main shaft.

[0023] The second pulley is connected to the first pulley via a belt.

[0024] Preferably, the main rotating shaft is provided with bearing seats at both ends, and the main rotating shaft is connected to the slag chamber body through the bearing seats. The input end of the main rotating shaft is provided with a power component, which is used to drive the main rotating shaft to rotate.

[0025] Preferably, the power assembly includes:

[0026] The reducer has a support frame fixedly connected to its bottom end, and the support frame is fixedly connected to the main body of the slag chamber. The input end of the reducer is equipped with a motor.

[0027] The first sprocket is fixedly connected to the output end of the reducer;

[0028] The second sprocket is fixedly connected to the input end of the main shaft;

[0029] The second sprocket is connected to the first sprocket via a chain.

[0030] Preferably, the slag chamber body is provided with an opening and closing component;

[0031] The opening and closing component includes:

[0032] An angle shell, used to seal the junction of the feed chamber and the discharge chamber of the slag chamber body:

[0033] The corner shell is equipped with a connecting screw, and the corner shell is connected to the slag chamber body through the connecting screw.

[0034] Preferably, the outer periphery of the eccentric tube is machined with triangular protrusions.

[0035] Preferably, the side of the guide plate adjacent to the baffle plate is processed with striped patterns, which are used to increase the friction between the guide plate and the residue.

[0036] This utility model provides a boiler slag crusher:

[0037] Through the coordinated use of the main shaft, bearing housing, fixed seat, T-slot, crushing blades, and fixing components, the crushing blades located on the main shaft rotate with the fixed seat. The rotating crushing blades crush the coal residue. When the crushing blades need to be replaced, the fixing components are disassembled, and then the crushing blades are moved to separate from the T-slot. After replacing the new crushing blades, the fixing components are used to fix the installation position of the crushing blades in the fixed seat. The detachable design of the crushing blades changes the traditional welding connection method between the crushing blades and the main shaft, making it easier to replace and maintain aging crushing blades, shortening the maintenance time of the crushing blades, and improving the utilization efficiency of the crushing blades. Attached Figure Description

[0038] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the structure of this utility model;

[0040] Figure 2 This is a schematic diagram of the structure of the fixed base, T-slot, crushing blade, and fixing component in this utility model;

[0041] Figure 3This is a schematic diagram of the structure of the secondary rotating shaft, the first grooved pulley, the second grooved pulley, and the belt in this utility model;

[0042] Figure 4 This is a schematic diagram of the structure of the guide plate, crossbar, baffle plate and eccentric tube in this utility model;

[0043] Figure 5 This is a schematic diagram of the structure of the reducer, support frame, motor, first sprocket, second sprocket, and chain in this utility model;

[0044] Figure 6 This is a schematic diagram of the structure of the slag chamber body, corner shell, and connecting screw in this utility model.

[0045] Explanation of reference numerals in the attached figures:

[0046] 1-Slag chamber body, 11a-Corner shell, 11b-Connecting screw, 2-Main shaft, 21-Bearing seat, 22-Crushing assembly, 221-Fixing seat, 221a-T-slot, 222-Crushing blade, 223-Fixing component, 223a-Locking ring, 223b-Positioning pin, 3-Extrusion assembly, 31-Guide plate, 311-Crossbar, 32-Drive component, 321-Secondary shaft, 322-Eccentric tube, 323-Linkage assembly, 323a-First grooved wheel, 323b-Second grooved wheel, 323c-Belt, 33-Baffle plate, 4-Power assembly, 41-Reducer, 411-Support frame, 412-Motor, 42-First sprocket, 43-Second sprocket, 44-Chain. Detailed Implementation

[0047] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0048] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0049] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0050] In this embodiment, as Figure 1 and Figure 2 As shown, a boiler ash crusher includes: a ash chamber body 1, a main rotating shaft 2 disposed in the feeding chamber of the ash chamber body 1, and crushing components 22 evenly distributed on the outer periphery of the main rotating shaft 2; the crushing components 22 include: a fixed seat 221, the central hole of the fixed seat 221 being fixedly connected to the main rotating shaft 2, and the fixed seat 221 having a T-slot 221a; crushing blades 222, the crushing blades 222 being inserted and connected to the T-slot 221a, and the crushing blades 222 being staggered at a 120° phase angle based on the fixed seat 221; and a fixing member 223 disposed on the outer periphery of the fixed seat 221, the fixing member 223 being used to fix the installation position of the crushing blades 222.

[0051] Thus, the coal residue after combustion enters the slag chamber body 1. Under the action of an external power source, the main rotating shaft 2 is driven to rotate in the slag chamber body 1. The fixed seat 221 located on the main rotating shaft 2 rotates accordingly. The crushing blades 222, which are evenly distributed on the fixed seat 221, rotate with the fixed seat 221. The rotating crushing blades 222 crush the coal residue. When it is necessary to replace the crushing blades 222, the fixing part 223 is disassembled. Then, the crushing blades 222 are moved to separate from the T-slot 221a. After replacing the new crushing blades 222, the fixing part 223 is used to fix the installation position of the crushing blades 222 in the fixed seat 221. The detachable design of the crushing blades 222 changes the traditional welding connection method between the crushing blades 222 and the main rotating shaft 2, making it easier to replace and maintain the aging crushing blades 222.

[0052] Specifically, the number of fixed bases 221 used is installed according to the usage requirements. Each fixed base 221 is equipped with three crushing blades 222. The crushing blades 222 are evenly distributed at 120° along the fixed base 221. The crushing blades 222 are detachably connected to the T-slots 221a, which facilitates the replacement of aged crushing blades 222.

[0053] In some embodiments, such as Figure 2 As shown, the fixing member 223 includes: a locking ring 223a, which is used to close the open end of the T-slot 221a. The central hole of the locking ring 223a is slidably connected to the main rotating shaft 2. A positioning pin 223b is disposed in the locking ring 223a, and the locking ring 223a is connected to the fixing seat 221 through the positioning pin 223b.

[0054] Specifically, the locking ring 223a closes the open end of the T-slot 221a to fix the crushing chip 222 in the fixed seat 221, and the positioning pin 223b is used to connect the locking ring 223a to the fixed seat 221. The outer wall of the positioning pin 223b is threaded.

[0055] In some embodiments, such as Figure 3 and Figure 4 As shown, an extrusion assembly 3 is provided below the main rotating shaft 2. The extrusion assembly 3 is used for secondary crushing of the residue. The extrusion assembly 3 includes: a guide plate 31, which is located below the main rotating shaft 2. A crossbar 311 is arranged in the guide plate 31. The guide plate 31 is rotatably connected to the slag chamber body 1 through the crossbar 311. A driving component 32 is arranged at the bottom end of the guide plate 31. The driving component 32 is used to push the end of the guide plate 31 away from the crossbar 311 to deflect up and down. A baffle plate 33 is fixedly connected to the slag chamber body 1 at both ends. The inclination angle of the baffle plate 33 is adapted to that of the guide plate 31.

[0056] Specifically, the initially crushed residue slides down the guide plate 31, which rotates in the slag chamber body 1 via the crossbar 311. The guide plate 31 deflects up and down in the direction of the baffle plate 33 via the drive component 32, and the baffle plate 33 cooperates with the guide plate 31 to perform secondary compression and crushing of the residue.

[0057] In some embodiments, such as Figure 4 As shown, the driving component 32 includes: a secondary rotating shaft 321, which is connected to the slag chamber body 1 through a bearing. The input end of the secondary rotating shaft 321 is equipped with a linkage component 323, and the main rotating shaft 2 drives the secondary rotating shaft 321 to rotate through the linkage component 323. An eccentric tube 322 is fixedly connected to the outer periphery of the secondary rotating shaft 321, and the outer periphery of the eccentric tube 322 abuts against the guide plate 31.

[0058] Specifically, the eccentric tube 322 moves with the secondary shaft 321, and the secondary shaft 321 moves with the main shaft 2.

[0059] In some embodiments, such as Figure 3 As shown, the linkage component 323 includes: a first grooved wheel 323a, which is fixedly connected to the input end of the auxiliary rotating shaft 321; a second grooved wheel 323b, which is fixedly connected to the output end of the main rotating shaft 2; the second grooved wheel 323b is connected to the first grooved wheel 323a via a belt 323c.

[0060] Specifically, the first grooved wheel 323a is used to drive the secondary shaft 321 to rotate, and the second grooved wheel 323b drives the first grooved wheel 323a to rotate through the belt 323c, so as to provide power for the rotation of the secondary shaft 321.

[0061] In some embodiments, such as Figure 5 As shown, the main rotating shaft 2 is equipped with bearing seats 21 at both ends, and the main rotating shaft 2 is connected to the slag chamber body 1 through the bearing seats 21. The input end of the main rotating shaft 2 is equipped with a power assembly 4, which is used to drive the main rotating shaft 2 to rotate.

[0062] Specifically, there are two bearing seats 21, which are used to support the two ends of the main shaft 2.

[0063] In some embodiments, such as Figure 5 As shown, the power assembly 4 includes: a reducer 41, with a support frame 411 fixedly connected to the bottom end of the reducer 41, the support frame 411 being fixedly connected to the slag chamber body 1, and a motor 412 configured at the input end of the reducer 41; a first sprocket 42, which is fixedly connected to the output end of the reducer 41; and a second sprocket 43, which is fixedly connected to the input end of the main shaft 2; the second sprocket 43 is connected to the first sprocket 42 via a chain 44.

[0064] Specifically, the support frame 411 is used to install the reducer 41, the motor 412 is used to provide power, and the first sprocket 42 drives the second sprocket 43 to rotate through the chain 44, thereby providing power for the rotation of the main shaft 2.

[0065] In some embodiments, such as Figure 6 As shown, the slag chamber body 1 is provided with an opening and closing assembly 11; the opening and closing assembly 11 includes: a corner shell 11a, which is used to seal the junction of the feed chamber and the discharge chamber of the slag chamber body 1; a connecting screw 11b is disposed in the corner shell 11a, and the corner shell 11a is connected to the slag chamber body 1 through the connecting screw 11b.

[0066] The corner shell 11a is located at the junction of the feed chamber and the discharge chamber of the slag chamber body 1. The connecting screw 11b is used to fix the position of the corner shell 11a. The corner shell 11a can be disassembled to facilitate the maintenance of the crushing blade 222.

[0067] In some embodiments, such as Figure 4 As shown, the outer periphery of the eccentric tube 322 is machined with triangular protrusions.

[0068] The triangular protrusion on the eccentric tube 322 makes it easy for the guide plate 31 to be lifted up during the rotation of the eccentric tube 322, and then fall naturally by the weight of the guide plate 31.

[0069] In some embodiments, such as Figure 4 As shown, the side of the guide plate 31 adjacent to the baffle plate 33 is machined with striped patterns, which are used to increase the friction between the guide plate 31 and the residue.

[0070] The striped pattern on the guide plate 31 increases the friction on the surface of the guide plate 31 and prolongs the residence time of the residue on the guide plate 31, so that the guide plate 31 can work with the baffle plate 33 to perform secondary extrusion of the residue.

[0071] The working principle of this application is illustrated below with a preferred embodiment:

[0072] When the motor 412 is started, the output end of the motor 412 drives the first sprocket 42 to rotate through the reducer 41. The first sprocket 42 drives the second sprocket 43 to rotate through the chain 44. At the same time, the second sprocket 43 drives the main shaft 2 to rotate in the bearing seat 21. The crushing blades 222 rotate with the main shaft 2 to crush the coal lumps and residues falling in the slag chamber body 1.

[0073] When the main shaft 2 rotates, it drives the second grooved wheel 323b to rotate. The second grooved wheel 323b drives the first grooved wheel 323a to rotate through the belt 323c. In turn, the first grooved wheel 323a drives the auxiliary shaft 321 to rotate. The eccentric tube 322 located on the outer periphery of the auxiliary shaft 321 rotates with the auxiliary shaft 321 and pushes the guide plate 31 to move towards the baffle plate 33. After the triangular protrusion of the eccentric tube 322 separates from the guide plate 31, the guide plate 31 resets. After preliminary crushing, the slag falls between the baffle plate 33 and the guide plate 31. With the continuous opening and closing of the baffle plate 33 and the guide plate 31, the slag is further crushed to improve the crushing effect of the slag.

[0074] When the crushing blade 222 needs maintenance and replacement, rotate the connecting screw 11b to separate it from the slag chamber body 1, and then disassemble the corner shell 11a. Then rotate the positioning pin 223b to separate it from the fixed seat 221. Then move the locking ring 223a laterally around the outer periphery of the main rotating shaft 2 to separate it from the fixed seat 221. Next, move the crushing blade 222 laterally to separate it from the T-slot 221a for replacement. After replacing the new crushing blade 222, use the locking ring 223a to re-fix the position of the crushing blade 222 in the fixed seat 221.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A boiler ash crusher, comprising: The slag chamber body (1) is equipped with a main rotating shaft (2) in the feeding chamber of the slag chamber body (1), characterized in that crushing components (22) are evenly distributed on the outer periphery of the main rotating shaft (2); The crushing component (22) includes: A fixed base (221) is provided, wherein the center hole of the fixed base (221) is fixedly connected to the main rotating shaft (2), and the fixed base (221) is provided with a T-slot (221a); Crushing blades (222) are inserted into the T-slots (221a) and are staggered at a 120° phase angle based on the fixing base (221). The outer periphery of the fixing base (221) is provided with a fixing member (223), which is used to fix the installation position of the crushing blade (222).

2. The boiler slag crusher according to claim 1, characterized in that, The fastener (223) includes: A locking ring (223a) is used to close the open end of the T-slot (221a). The center hole of the locking ring (223a) is slidably connected to the main rotating shaft (2). A positioning pin (223b) is disposed in the locking ring (223a). The locking ring (223a) is connected to the fixed seat (221) through the positioning pin (223b).

3. A boiler slag crusher according to claim 1, characterized in that, An extrusion assembly (3) is provided below the main rotating shaft (2), and the extrusion assembly (3) is used to perform secondary crushing of the residue; The extrusion assembly (3) includes: A guide plate (31) is located below the main rotating shaft (2). A crossbar (311) is arranged in the guide plate (31). The guide plate (31) is rotatably connected to the slag chamber body (1) through the crossbar (311). The bottom end of the guide plate (31) is provided with a driving member (32), which is used to push the end of the guide plate (31) away from the crossbar (311) to deflect up and down. The shield (33) is fixedly connected to the main body (1) of the slag chamber at both ends, and the angle of inclination of the shield (33) is adapted to that of the guide plate (31).

4. A boiler slag crusher according to claim 3, characterized in that, The driving element (32) includes: A secondary rotating shaft (321) is connected to the slag chamber body (1) via a bearing. A linkage assembly (323) is configured at the input end of the secondary rotating shaft (321). The main rotating shaft (2) drives the secondary rotating shaft (321) to rotate via the linkage assembly (323). An eccentric tube (322) is fixedly connected to the outer periphery of the secondary rotating shaft (321), and the outer periphery of the eccentric tube (322) abuts against the guide plate (31).

5. A boiler slag crusher according to claim 4, characterized in that, The linkage component (323) includes: The first grooved wheel (323a) is fixedly connected to the input end of the secondary rotating shaft (321); The second grooved wheel (323b) is fixedly connected to the output end of the main shaft (2); The second grooved pulley (323b) is connected to the first grooved pulley (323a) via a belt (323c).

6. A boiler slag crusher according to claim 1, characterized in that, The main shaft (2) is provided with bearing seats (21) at both ends. The main shaft (2) is connected to the slag chamber body (1) through the bearing seats (21). The input end of the main shaft (2) is provided with a power assembly (4). The power assembly (4) is used to drive the main shaft (2) to rotate.

7. A boiler slag crusher according to claim 6, characterized in that, The power assembly (4) includes: A speed reducer (41) is fixedly connected to a support frame (411) at its bottom end. The support frame (411) is fixedly connected to the main body (1) of the slag chamber. A motor (412) is configured at the input end of the speed reducer (41). The first sprocket (42) is fixedly connected to the output end of the reducer (41); The second sprocket (43) is fixedly connected to the input end of the main shaft (2); The second sprocket (43) is connected to the first sprocket (42) via a chain (44).

8. A boiler slag crusher according to claim 1, characterized in that, The slag chamber body (1) is provided with an opening and closing component (11); The opening and closing component (11) includes: Corner shell (11a), said corner shell (11a) is used to seal the junction of the feed chamber and the discharge chamber of the slag chamber body (1): A connecting screw (11b) is disposed in the corner shell (11a), and the corner shell (11a) is connected to the slag chamber body (1) through the connecting screw (11b).

9. A boiler slag crusher according to claim 4, characterized in that, The outer periphery of the eccentric tube (322) is machined with triangular protrusions.

10. A boiler slag crusher according to claim 3, characterized in that, The guide plate (31) has striped patterns on the side adjacent to the shield plate (33). The striped patterns are used to increase the friction between the guide plate (31) and the residue.

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