Adjusting device for preventing deflection and slag leakage of slag cooler of fluidized bed boiler

Abstract

The utility model discloses an adjusting device for preventing deflection and slag leakage of a slag cooler of a fluidized bed boiler, which belongs to the technical field of slag coolers and comprises a mounting base and a cooling cylinder, two groups of support arms are symmetrically mounted on the top surface of the mounting base front and back, and the top end of each support arm is rotatably connected with a support wheel. Two contact rotating assemblies are fixedly installed on the outer wall of the cooling cylinder, the outer walls of the contact rotating assemblies abut against the outer walls of the supporting wheels, a gear ring is coaxially and fixedly connected to the outer wall of the cooling cylinder, a driving gear is rotationally connected to the portion, on one side of the gear ring, of the installation base, and the driving gear is in meshing transmission connection with the gear ring. Friction between the cooling cylinder and the supporting wheel is further reduced through the contact rotating assembly, abrasion of the supporting wheel is reduced, the working stability of the cooling cylinder is improved, meanwhile, the contact steel ring can be conveniently detached and replaced through the design of the quick detaching assembly, manpower and material resources are saved, and use is convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of slag cooler technology, specifically an adjustment device to prevent slag leakage from the slag cooler of a fluidized bed boiler. Background Technology

[0002] A fluidized bed boiler slag cooler is a device used to process slag discharged from fluidized bed boilers. Its main purpose is to cool and transport the high-temperature slag generated during boiler operation. The slag cooler usually uses a water-cooling or air-cooling system to rapidly reduce the slag temperature to a safe range (usually below 100-200℃). Currently, the industry standard for drum slag coolers adopts a structure of 4 independent support wheels + cylinder support ring. During operation, due to uneven force on the four support wheels, uneven wear and frequent damage due to uneven load distribution often occur. Furthermore, the slag cooler must always maintain horizontality and verticality to allow for free expansion and prevent slag leakage. This necessitates frequent adjustments to the support wheels to ensure the verticality and horizontality of the slag cooler, which in turn accelerates the frequency of support wheel damage and extends its service life. Utility Model Content

[0003] The purpose of this invention is to provide an adjustment device to prevent slag leakage from the slag cooler of a fluidized bed boiler, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An adjustment device for preventing slag leakage from a slag cooler in a fluidized bed boiler includes a mounting base and a cooling cylinder. Two sets of support arms are symmetrically mounted on the top surface of the mounting base, and a support wheel is rotatably connected to the top of each support arm. Two sets of contact rotating components are fixedly mounted on the outer wall of the cooling cylinder, with the outer wall of the contact rotating components abutting against the outer wall of the support wheel. A gear ring is coaxially fixedly connected to the outer wall of the cooling cylinder. A drive gear is rotatably connected to one side of the gear ring on the mounting base. The drive gear meshes with the gear ring for transmission. A stepper motor is coaxially rotatably connected to the shaft of the drive gear. A front cover and a rear cover are coaxially mounted on the front and rear ends of the cooling cylinder, respectively.

[0006] Furthermore, a fixing arm is welded and fixed to the front end face of the mounting base, and the front cover is fixedly installed between the fixing arms.

[0007] Furthermore, the contact rotation assembly includes a fixed ring, which is coaxially fixedly installed on the outer wall of the cooling cylinder. Several sliding mounting brackets are equidistantly arranged on the circumference of the outer wall of the fixed ring, and quick-release components are slidably installed between each group of sliding mounting brackets.

[0008] Furthermore, the quick-release assembly includes a mounting plate, and a spring is sandwiched between the mounting plate and the outer wall of the retaining ring.

[0009] Furthermore, the top surface of the mounting plate is integrally formed with a mounting arm, and the end of the mounting arm is rotatably connected to a rotating wheel. A contact steel ring is installed on the outer wall of the rotating wheel on several sets of quick-release components, and the outer wall of the contact steel ring contacts and abuts against the outer wall of the support wheel.

[0010] Furthermore, the outer wall of the cooling cylinder is slidably connected to a positioning ring on one side of each of the two fixing rings, and the outer wall of the positioning ring is provided with positioning pins at equal intervals around its circumference, the number of which is equal to the number of quick-release components.

[0011] Furthermore, a through-hole is provided at the bottom of the mounting arm, and the size of the positioning hole is adapted to the positioning pin.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In use, this utility model uses a contact rotating component to contact the support wheel, replacing the original method of direct contact between the outer wall of the cooling cylinder and the support wheel. This further reduces the friction between the cooling cylinder and the support wheel, reduces the wear of the support wheel, and improves the working stability of the cooling cylinder. At the same time, the quick-release component design allows for easy disassembly and replacement of the contact steel ring, saving manpower and resources and making it convenient to use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is an exploded view of the overall structure of this utility model;

[0016] Figure 3 This is a structural part drawing of the mounting base of this utility model;

[0017] Figure 4 This is a side view of the overall structure of this utility model;

[0018] Figure 5 This is a partial exploded view of the structure of this utility model;

[0019] Figure 6 This is an exploded view of the quick-release component structure of this utility model;

[0020] Figure 7 This is a cross-sectional view of the overall structure of this utility model;

[0021] Figure 8 This is an enlarged cross-sectional view of a portion of the structure of this utility model.

[0022] In the diagram: 1. Mounting base; 11. Support arm; 111. Slide rail; 112. T-shaped bidirectional screw; 12. Extension arm; 13. Fixed arm; 14. Weight reduction groove; 2. Cooling cylinder; 3. Support wheel; 4. Contact rotation assembly; 41. Fixing ring; 411. Sliding mounting bracket; 42. Contact steel ring; 43. Positioning ring; 431. Positioning pin; 5. Quick release assembly; 51. Mounting plate; 511. Slider; 512. Mounting arm; 513. Positioning hole; 52. Spring; 53. Rotating wheel; 6. Gear ring; 7. Drive gear; 71. Stepper motor; 8. Front cover; 81. Feed inlet; 9. Rear cover; 91. Water inlet pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1: Please refer to Figures 1-4 An adjustment device for preventing slag leakage in a fluidized bed boiler slag cooler includes a mounting base 1 and a cooling cylinder 2. Two sets of support arms 11 are symmetrically mounted on the top surface of the mounting base 1. Specifically, two slide rails 111 are provided on the top surface of the mounting base 1, and the two sets of support arms 11 are slidably connected within the two slide rails 111. A T-shaped double-acting screw 112 is rotatably connected within each of the two slide rails 111. Each support arm 11 has a T-shaped threaded hole extending through it to the left and right at its bottom end, which is threadedly connected to the T-shaped double-acting screw 112. A hand crank is coaxially fixedly connected to each of the two T-shaped double-acting screws 112 after passing through the side wall of the slide rails 111. A support wheel 3 is rotatably connected to the top of each support arm 11. Two sets of contact rotating components are fixedly installed on the outer wall of the cooling cylinder 2. 4. The outer wall of the contact rotating component 4 abuts against the outer wall of the support wheel 3. A gear ring 6 is coaxially fixedly connected to the outer wall of the cooling cylinder 2. The mounting base 1 is rotatably connected to the drive gear 7 on one side of the gear ring 6. The drive gear 7 meshes with the gear ring 6 for transmission. The shaft of the drive gear 7 is coaxially rotatably connected to the stepper motor 71. Specifically, the top surface of the mounting base 1 is provided with a weight-reducing groove 14 for reducing weight. An extension arm 12 is welded and fixed to the top surface of the mounting base 1. The drive gear 7 is rotatably connected to the end of the support arm 11. The stepper motor 71 is fixedly installed on the rear wall of the extension arm 12 by bolts. The stepper motor 71 drives the drive gear 7 to rotate. The drive gear 7 drives the gear ring 6 and the cooling cylinder 2 to rotate synchronously. The front cover 8 and the rear cover 9 are coaxially installed at the front and rear ends of the cooling cylinder 2, respectively.

[0025] The mounting base 1 has a fixed arm 13 welded to its front end. The front cover 8 is fixedly installed between the fixed arms 13. Specifically, the outer wall of the front cover 8 has a feed inlet 81 for introducing materials into the cooling cylinder 2. The inner wall of the cooling cylinder 2 is integrally formed with an auger blade for conveying materials. The auger blade is used to transport materials from the front end to the rear end of the cooling cylinder 2. When the cooling cylinder 2 rotates, the front cover 8 does not rotate with the cooling cylinder 2 because it is fixed on the fixed arm 13. The rear cover 9 is coaxially fixedly connected to the rear end of the mounting base 1. The rear cover 9 rotates synchronously with the mounting base 1. The rear end face of the rear cover 9 is integrally formed with a water inlet pipe 91 for entering and exiting cooling water.

[0026] Example 2: Please refer to Figures 5-8 An adjustment device for preventing slag leakage from the slag cooler of a fluidized bed boiler, differing from Embodiment 1, in that the contact rotating assembly 4 includes a fixed ring 41, which is coaxially fixedly installed on the outer wall of the cooling cylinder 2. Several sliding mounting brackets 411 are equidistantly arranged on the circumference of the outer wall of the fixed ring 41. A quick-release assembly 5 is slidably installed between each group of sliding mounting brackets 411. The quick-release assembly 5 includes a mounting plate 51, and a spring 52 is sandwiched between the mounting plate 51 and the outer wall of the fixed ring 41. Specifically, a through groove is opened on the sliding mounting bracket 411, and sliders 511 are provided on both the front and rear sides of the mounting plate 51. The sliding connection is in the slide groove, which guides the mounting plate 51. The spring 52 provides support for the mounting plate 51. The top surface of the mounting plate 51 is integrally formed with a mounting arm 512. The end of the mounting arm 512 is rotatably connected to a rotating wheel 53. A contact steel ring 42 is installed on the outer wall of the rotating wheel 53 on several sets of quick-release components 5. The outer wall of the contact steel ring 42 contacts and abuts against the outer wall of the support wheel 3. Specifically, the contact steel ring 42 has an I-shaped cross section. The support wheel 3 and the rotating wheel 53 are respectively engaged in the grooves on the outer and inner surfaces of the contact steel ring 42 to prevent the contact steel ring 42 from falling off when the cooling cylinder 2 rotates.

[0027] The outer wall of the cooling cylinder 2 is slidably connected to two fixing rings 41 on one side, with positioning rings 43 equidistantly arranged around the outer circumference of the positioning rings 43, the number of which is equal to the number of quick-release components 5. The bottom of the mounting arm 512 has a through positioning hole 513, the size of which is adapted to the positioning pin 431. Specifically, when the positioning pin 431 passes through the preset hole on the sliding mounting bracket 411 and engages with the positioning hole 513, the quick-release components 5 are fixed between the sliding mounting brackets 411. At this time, the contact steel ring 42 is limited to the outside of several rotating wheels 53. When the contact steel ring 42 needs to be disassembled and replaced, several positioning pins 431 on the positioning ring 43 are disengaged from the positioning holes 513 of several quick-release components 5. At this time, the quick-release components 5 are slidably connected between the sliding mounting brackets 411. The compression spring 52 lowers the position of the quick-release components 5 between the sliding mounting brackets 411, so that several rotating wheels 53 are disengaged from the contact steel ring 42, and the contact steel ring 42 can be disassembled and replaced.

[0028] Working principle: First, the material is poured into the cooling cylinder 2 through the feed port 81 on the outer wall of the front cover 8. Then, the stepper motor 71 is started. The stepper motor 71 drives the drive gear 7 to rotate. The drive gear 7 drives the gear ring 6 and the cooling cylinder 2 to rotate synchronously. The material is transported from the front end to the rear end of the cooling cylinder 2 through the auger blades on the inner wall of the cooling cylinder 2. Cooling water is introduced into the interior of the cooling cylinder 2 through the water inlet pipe 91 at the rear end of the rear cover 9. The cooling water absorbs the heat of the material through the heat conduction of the inner wall of the cooling cylinder 2, thereby cooling the material in the cooling cylinder 2.

[0029] As the cooling cylinder 2 continues to rotate, the contact rotating component 4 and the support wheel 3 continue to rotate and contact each other. The contact steel ring 42 will wear down and needs to be replaced in time. Disengage the positioning pins 431 on the positioning ring 43 from the positioning holes 513 of the quick release components 5. At this time, the quick release components 5 are slidably connected between the sliding mounting brackets 411. The compression spring 52 lowers the position of the quick release components 5 between the sliding mounting brackets 411, so that the rotating wheels 53 disengage from the contact steel ring 42. Then the contact steel ring 42 can be disassembled and replaced.

[0030] The new contact steel ring 42 is fitted onto the outside of several rotating wheels 53. The positioning pin 431 on the positioning ring 43 is passed through the preset hole opened on the sliding mounting bracket 411 and then cooperates with the positioning hole 513. At this time, the quick-release assembly 5 is fixed between the sliding mounting brackets 411. At this time, the contact steel ring 42 is limited to rotate and connected to the outside of several rotating wheels 53. Thus, the operation of this device is completed.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope of the technology disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An adjustment device for preventing slag leakage from the slag cooler of a fluidized bed boiler, comprising a mounting base (1) and a cooling cylinder (2), characterized in that: The mounting base (1) has two sets of support arms (11) symmetrically installed on its top front and back. Each support arm (11) is rotatably connected to a support wheel (3) at its top. The cooling cylinder (2) has two sets of contact rotation components (4) fixedly installed on its outer wall. The outer wall of the contact rotation components (4) abuts against the outer wall of the support wheel (3). The cooling cylinder (2) has a gear ring (6) fixedly connected to its outer wall on the same axis. The mounting base (1) has a drive gear (7) rotatably connected to one side of the gear ring (6). The drive gear (7) meshes with the gear ring (6) for transmission. The shaft of the drive gear (7) is rotatably connected to a stepper motor (71). The front cover (8) and the rear cover (9) are coaxially installed on the front and rear ends of the cooling cylinder (2), respectively.

2. The adjustment device for preventing slag leakage from the slag cooler of a fluidized bed boiler according to claim 1, characterized in that: The mounting base (1) has a fixing arm (13) welded to its front end face, and the front cover (8) is fixedly installed between the fixing arms (13).

3. The adjustment device for preventing slag leakage from the slag cooler of a fluidized bed boiler according to claim 1, characterized in that: The contact rotation assembly (4) includes a fixing ring (41), which is coaxially fixedly installed on the outer wall of the cooling cylinder (2). The outer wall of the fixing ring (41) is provided with several sliding mounting brackets (411) at equal intervals around its circumference. A quick-release assembly (5) is slidably installed between each group of sliding mounting brackets (411).

4. The adjustment device for preventing slag leakage from the slag cooler of a fluidized bed boiler according to claim 3, characterized in that: The quick-release assembly (5) includes a mounting plate (51), and a spring (52) is sandwiched between the mounting plate (51) and the outer wall of the fixing ring (41).

5. The adjustment device for preventing slag leakage from the slag cooler of a fluidized bed boiler according to claim 4, characterized in that: The mounting plate (51) is integrally formed with a mounting arm (512) on its top surface. The mounting arm (512) is rotatably connected to a rotating wheel (53). A contact steel ring (42) is installed on the outer wall of the rotating wheel (53) on several sets of quick-release components (5). The outer wall of the contact steel ring (42) contacts and abuts against the outer wall of the support wheel (3).

6. The adjustment device for preventing slag leakage from the slag cooler of a fluidized bed boiler according to claim 5, characterized in that: The outer wall of the cooling cylinder (2) is slidably connected to the two fixing rings (41) on one side, and the outer wall of the positioning ring (43) is provided with positioning pins (431) at equal intervals around the circumference, which is equal to the number of quick-release components (5).

7. The adjustment device for preventing slag leakage from the slag cooler of a fluidized bed boiler according to claim 6, characterized in that: The mounting arm (512) has a through-hole (513) at the bottom, and the size of the positioning hole (513) is adapted to the size of the positioning pin (431).

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