Hearth energy-saving anti-abrasion device for circulating fluidized bed boiler

Abstract

The utility model relates to the technical field of hearth wear resistance, and discloses a hearth energy-saving wear-resistant device for a circulating fluidized bed boiler, which comprises a fire-resistant bushing, and the top end of the fire-resistant bushing is fixedly connected with an air outlet pipe. According to the hearth energy-saving anti-abrasion device for the circulating fluidized bed boiler, the preformed groove, the limiting clamping groove, the limiting clamping block, the limiting spring and the connecting rod are arranged, the connecting rod is pressed, the connecting rod drives the limiting clamping block to move through the connecting block so that the limiting clamping block can be separated from the interior of the limiting clamping groove, and therefore a mounting plate can be lost, and the mounting plate can be conveniently detached; the mounting plate and assemblies on the mounting plate can be conveniently cleaned or replaced by dismounting the mounting plate, and limiting springs can enable limiting clamping blocks to be embedded into limiting clamping grooves through elasticity of the limiting springs when the mounting plate needs to be mounted, so that the mounting plate is mounted and fixed, and the problem that the whole anti-abrasion assembly is inconvenient to dismount and clean is solved; and the mounting and dismounting efficiency is easily influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to hearth anti -wear technology field, specifically for a kind of hearth energy-saving anti-wear device for circulating fluidized bed boiler. BACKGROUND

[0002] Circulating fluidized bed boiler adopts the highest industrialization degree clean coal combustion technology, circulating fluidized bed boiler system is usually composed of fluidized bed combustion chamber (furnace), circulating ash separator, fly ash back device, tail heating surface and auxiliary equipment, the inner side wall of furnace is easily worn for long time use furnace, thus it needs to use hearth energy-saving anti-wear device for circulating fluidized bed boiler to increase the service life of furnace.

[0003] Part of hearth energy-saving anti-wear device for circulating fluidized bed boiler still has some problems, for example;Solid particles are prone to cause refractory bushing to wear in the process of use when colliding inside furnace, and anti-wear assembly needs to be disassembled for long time use, it is inconvenient to disassemble and clean the whole anti-wear assembly, which can affect the efficiency of installation and disassembly.

[0004] Therefore, we propose a hearth energy-saving anti-wear device for circulating fluidized bed boiler to improve the above problems. INVENTION CONTENTS

[0005] The utility model aims at providing a hearth energy-saving anti-wear device for circulating fluidized bed boiler to solve the problem of inconvenient disassembly and cleaning of the whole anti-wear assembly in the background art, which can affect the efficiency of installation and disassembly.

[0006] To achieve the above object, the utility model provides the following technical scheme: a hearth energy-saving anti-wear device for circulating fluidized bed boiler, including refractory bushing, the top of refractory bushing is fixedly connected with air outlet pipe, the left and right sides and the front and back ends in refractory bushing are fixedly connected with fixed plate respectively, the side close to the middle of fixed plate is provided with mounting plate, convenient installation structure is arranged between fixed plate and mounting plate;

[0007] Convenient installation structure includes limiting slot, limiting block and connecting block, the upper and lower ends of the front and back ends in mounting plate are provided with first hinged block, the outside of first hinged block is movably hinged with connecting block, the side close to the outside of connecting block is fixedly connected with limiting block, the front and back ends in fixed plate are provided with reserved slot, the upper and lower ends of reserved slot are provided with limiting slot, limiting spring is fixedly connected between connecting blocks, the end close to the outside of connecting block is fixedly connected with connecting rod.

[0008] As a further technical scheme of the utility model, the limiting block is embedded in the inside of the limiting slot, and the limiting block and the limiting slot are mutually matched.

[0009] As a further technical scheme of the utility model, one side of the connecting block moves in the inside of the reserved slot, and the limiting spring is arranged at the front and rear ends in the inside of the mounting plate.

[0010] As a further technical scheme of the utility model, the inside wall of the refractory bushing is coated with a wear-resistant coating, a first mounting slot is formed at the top end in the inside of the mounting plate, a wear plate is arranged in the inside of the first mounting slot, limiting blocks are fixedly connected to the front and rear ends of the top of the wear plate, second hinge blocks are arranged at the front and rear ends of the top of the mounting plate, movable blocks are movably hinged to the outside of the second hinge blocks, and a limiting groove is formed in one side in the inside of the movable block.

[0011] As a further technical scheme of the utility model, the limiting groove is embedded in the inside of the limiting block, and the movable block is fixed through the movable block and the limiting groove.

[0012] As a further technical scheme of the utility model, a second mounting slot is formed at the bottom end in the inside of the mounting plate, a flow baffle is arranged in the inside of the second mounting slot, a connecting plate is arranged at the bottom end of the mounting plate, a pull rod is fixedly connected to the middle position at the bottom end of the connecting plate, limiting rods are fixedly connected to the front and rear ends of the top of the connecting plate, a limiting slot is formed in one side at the bottom end in the inside of the flow baffle, and a reset spring is fixedly connected to the bottom end in the inside of the mounting plate.

[0013] As a further technical scheme of the utility model, one side of the flow baffle is embedded in the inside of the second mounting slot, and the limiting rods are embedded in the inside of the limiting slots.

[0014] As a further technical scheme of the utility model, the flow baffle is arranged in the inside of the second mounting slot through the limiting rods and the limiting slots, and the reset spring is arranged at the bottom end outside the limiting rods.

[0015] Compared with the prior art, the utility model has the advantages that the furnace energy-saving anti-wear device for the circulating fluidized bed boiler not only realizes the overall dismounting of the anti-wear assembly, improves the anti-wear effect, and facilitates the replacement of the wear plate and the flow baffle.

[0016] (1) By setting the reserved groove, limit card slot, limit card block, connecting block, limit spring and connecting rod, the need to wear and tear the whole assembly disassembly press the connecting rod, the connecting rod through the connecting block driven limit card block moves to make the limit card block from the inside of the limit card slot, so that the mounting plate can lose fixed, easy to disassemble the mounting plate, disassembly mounting plate can be convenient for the installation plate and the components on the installation plate cleaning or replacement, need to install the mounting plate limit spring can be embedded in the limit card block through its own elasticity in the limit card slot inside the installation plate installation fixed;

[0017] (2) By setting the wear-resistant coating, baffle and wear plate, the inner wall of the refractory bushing is provided with a wear-resistant coating, and the wear-resistant coating is a Teflon coating. The surface of the Teflon coating not only has the properties of not sticking water and oil, but also has wear resistance. High-speed flowing solid particles will impact on the wear plate and the baffle, and the baffle can slow down the speed of the solid particles, thereby reducing the wear of the inner wall of the refractory bushing and increasing the service life of the refractory bushing and the hearth.

[0018] (3) By setting the movable block, the second hinge block, the second installation slot, the reset spring, the limiting rod, the limiting slot, the limiting block and the limiting groove, the movable block can be directly rotated to make the limiting groove in the movable block disengage from the outside of the limiting block, so that the wear plate can be quickly installed and disassembled. When the baffle needs to be replaced, the pull rod is pulled, and the limiting rod is driven out of the inside of the limiting slot by the reset spring. When the baffle is installed, the reset spring will embed the limiting rod in the inside of the limiting slot through its own elasticity. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a front view cross-sectional structure schematic view of the utility model;

[0020] Figure 2 It is an enlarged structure schematic view of the mounting plate top view cross section of the utility model;

[0021] Figure 3 It is an enlarged structure schematic view of the fixed plate front view cross section of the utility model;

[0022] Figure 4 It is an enlarged structure schematic view of the Figure 2 It is an enlarged structure schematic view of the middle A cross section of the utility model.

[0023] In the figure: 1, refractory liner; 2, wear-resistant coating; 3, baffle; 4, mounting plate; 5, fixed plate; 6, reserved slot; 7, limiting clamping groove; 8, first hinged block; 9, air outlet pipe; 10, wear-resistant plate; 11, first mounting slot; 12, movable block; 13, second hinged block; 14, limiting clamping block; 15, connecting block; 16, limiting spring; 17, connecting rod; 18, second mounting slot; 19, connecting plate; 20, pull rod; 21, return spring; 22, limiting rod; 23, limiting slot; 24, limiting block; 25, limiting groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Please refer to Figures 1-4 The utility model provides an embodiment, a hearth energy -conserving anti -wear device for circulating fluidized bed boiler, including refractory liner 1, refractory liner 1's top fixedly connected with air outlet pipe 9, and the left and right sides and the front and back ends in refractory liner 1 are fixedly connected with fixed plate 5, and the side close to the middle of fixed plate 5 is provided with mounting plate 4, and the convenient installation structure is arranged between fixed plate 5 and mounting plate 4.

[0026] The convenient installation structure includes limiting clamping groove 7, limiting clamping block 14 and connecting block 15, and the upper and lower ends of the front and back ends in mounting plate 4 are provided with first hinged block 8, and the outside of first hinged block 8 is movably hinged with connecting block 15, and the side close to the outside of connecting block 15 is fixedly connected with limiting clamping block 14, and the front and back ends in fixed plate 5 are provided with reserved slot 6, and the upper and lower ends of reserved slot 6 are provided with limiting clamping groove 7, and limiting spring 16 is fixedly connected between connecting block 15, and one end close to the outside of connecting block 15 is fixedly connected with connecting rod 17.

[0027] Limiting clamping block 14 is embedded in the inside of limiting clamping groove 7, limiting clamping block 14 and limiting clamping groove 7 cooperate with each other, one side of connecting block 15 moves in the inside of reserved slot 6, and limiting spring 16 is arranged at the front and back ends in mounting plate 4.

[0028] Specifically, as Figure 1 And Figure 3As shown, when the whole wear-resistant assembly needs to be disassembled, press the connecting rod 17, the connecting rod 17 drives the limiting block 14 to move through the connecting block 15 to make the limiting block 14 disengage from the inside of the limiting block slot 7, so that the mounting plate 4 can be fixed, and the mounting plate 4 can be disassembled, which can facilitate cleaning or replacement of the mounting plate 4 and the components on the mounting plate 4. When the mounting plate 4 needs to be installed, the limiting spring 16 can make the limiting block 14 embedded in the inside of the limiting block slot 7 to install and fix the mounting plate 4.

[0029] The inner side wall of the refractory lining 1 is coated with a wear-resistant coating 2, the top end of the inside of the mounting plate 4 is provided with a first mounting slot 11, the inside of the first mounting slot 11 is provided with a wear plate 10, the front and rear ends of the top of the wear plate 10 are fixedly connected with limiting blocks 24, and the inside of the second mounting slot 18 is provided with a baffle 3;

[0030] Specifically, as shown in Figure 1 and Figure 3 , the inner side wall of the refractory lining 1 is provided with a wear-resistant coating 2, the wear-resistant coating 2 is a Teflon coating, the surface of the Teflon coating not only has the properties of not sticking to water and oil, but also has wear resistance. High-speed flowing solid particles will impact on the wear plate 10 and the baffle 3, the baffle 3 can slow down the speed of the flowing solid particles, thereby reducing the wear of the inner wall of the refractory lining 1 by the particles and increasing the service life of the refractory lining 1 and the hearth.

[0031] The front and rear ends of the top of the mounting plate 4 are provided with second hinge blocks 13, the outside of the second hinge blocks 13 is movably hinged with movable blocks 12, one side of the inside of the movable blocks 12 is provided with limiting grooves 25, the limiting grooves 25 are embedded in the inside of the limiting blocks 24, the movable blocks 12 are fixed through the movable blocks 12 and the limiting grooves 25, the bottom end of the inside of the mounting plate 4 is provided with a second mounting slot 18, the bottom end of the mounting plate 4 is provided with a connecting plate 19, the middle position of the bottom end of the connecting plate 19 is fixedly connected with a pull rod 20, the front and rear ends of the top of the connecting plate 19 are fixedly connected with limiting rods 22, one side of the bottom end of the inside of the baffle 3 is provided with a limiting slot 23, the bottom end of the inside of the mounting plate 4 is fixedly connected with a return spring 21, one side of the baffle 3 is embedded in the inside of the second mounting slot 18, the limiting rods 22 are embedded in the inside of the limiting slot 23, the baffle 3 is installed in the inside of the second mounting slot 18 through the limiting rods 22 and the limiting slot 23, and the return spring 21 is arranged at the bottom end outside the limiting rods 22;

[0032] Specifically, as shown in Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, when the wear plate 10 needs to be disassembled and replaced, the movable block 12 is directly rotated to make the limiting recess 25 in the movable block 12 disengage from the outside of the limiting block 24, the movable block 12 and the limiting block 24 are arranged to quickly install and dismount the wear plate 10, when the baffle 3 needs to be replaced, the pull rod 20 is pulled, the pull rod 20 drives the limiting rod 22 to disengage from the inside of the limiting slot 23 through the reset spring 21, and when the baffle 3 is installed, the reset spring 21 makes the limiting rod 22 embedded in the inside of the limiting slot 23 through the elasticity of the reset spring 21.

[0033] When in use, the inner side wall of the refractory lining 1 is provided with the wear-resistant coating 2, the wear-resistant coating 2 is a Teflon coating, the surface of the Teflon coating has the properties of not being attached to water and oil, and has wear resistance, so that the wear resistance of the refractory lining 1 can be improved, when in use, the high-speed flowing solid particles will impact on the wear plate 10 and the baffle 3, the baffle 3 can slow down the flowing speed of the solid particles, so that the wear of the inner wall of the refractory lining 1 by the particles can be reduced, the service life of the refractory lining 1 and the hearth is increased, when the wear assembly needs to be disassembled, the connecting rod 17 is pressed, the connecting rod 17 drives the limiting block 14 to move through the connecting block 15 to make the limiting block 14 disengage from the inside of the limiting slot 7, so that the mounting plate 4 is fixed, the mounting plate 4 is dismounted, the mounting plate 4 and the components on the mounting plate 4 can be cleaned or replaced, when the mounting plate 4 needs to be installed, the limiting spring 16 can make the limiting block 14 embedded in the inside of the limiting slot 7 through the elasticity of the limiting spring 16 to install and fix the mounting plate 4, when the wear plate 10 needs to be disassembled and replaced, the movable block 12 is directly rotated to make the limiting recess 25 in the movable block 12 disengage from the outside of the limiting block 24, the movable block 12 and the limiting block 24 are arranged to quickly install and dismount the wear plate 10, when the baffle 3 needs to be disassembled and replaced, the pull rod 20 is pulled, the pull rod 20 drives the limiting rod 22 to disengage from the inside of the limiting slot 23 through the reset spring 21, and when the baffle 3 is installed, the reset spring 21 makes the limiting rod 22 embedded in the inside of the limiting slot 23 through the elasticity of the reset spring 21.

[0034] It is apparent for those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the foregoing embodiments should be considered in all aspects as exemplary and not restrictive, and the scope of the present application is defined by the appended claims rather than the foregoing description, and therefore all changes falling within the meaning and range of equivalents of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. An energy-saving and wear-resistant furnace device for a circulating fluidized bed boiler, comprising a refractory liner (1), characterized in that: The top of the fire-resistant bushing (1) is fixedly connected to an air outlet pipe (9). The left and right sides and the front and rear ends of the fire-resistant bushing (1) are fixedly connected to fixing plates (5). The fixing plate (5) is provided with an installation plate (4) on the side near the middle. An installation structure is provided between the fixing plate (5) and the installation plate (4). The installation structure includes a limiting slot (7), a limiting block (14), and a connecting block (15). The mounting plate (4) has a first hinge block (8) at the upper and lower ends of the front and rear ends. The connecting block (15) is movably hinged to the outside of the first hinge block (8). The limiting block (14) is fixedly connected to the side of the connecting block (15) near the outside. The fixing plate (5) has a reserved slot (6) at the front and rear ends. The limiting slot (7) is opened at the upper and lower ends of the reserved slot (6). The connecting blocks (15) are fixedly connected to each other with a limiting spring (16). The connecting block (15) is fixedly connected to the end near the outside with a connecting rod (17).

2. The furnace energy-saving and wear-resistant device according to claim 1, characterized in that: The limiting block (14) is embedded inside the limiting slot (7), and the limiting block (14) and the limiting slot (7) cooperate with each other.

3. The furnace energy-saving and wear-resistant device according to claim 1, characterized in that: One side of the connecting block (15) moves inside the reserved groove (6), and the limiting spring (16) is set at both ends inside the mounting plate (4).

4. The furnace energy-saving and wear-resistant device according to claim 1, characterized in that: The inner wall of the fire-resistant bushing (1) is coated with a wear-resistant coating (2). The top of the mounting plate (4) is provided with a first mounting groove (11). The first mounting groove (11) is provided with a wear-resistant plate (10). The front and rear ends of the top of the wear-resistant plate (10) are fixedly connected with limit blocks (24). The front and rear ends of the top of the mounting plate (4) are provided with a second hinge block (13). The second hinge block (13) is movably hinged to the outside of a movable block (12). A limit groove (25) is provided on one side of the interior of the movable block (12).

5. The furnace energy-saving and wear-resistant device according to claim 4, characterized in that: The limiting groove (25) is embedded inside the limiting block (24), and the movable block (12) is fixed by the movable block (12) and the limiting groove (25).

6. The furnace energy-saving and wear-resistant device according to claim 1, characterized in that: The mounting plate (4) has a second mounting groove (18) at its bottom. A baffle plate (3) is installed inside the second mounting groove (18). A connecting plate (19) is installed at the bottom of the mounting plate (4). A pull rod (20) is fixedly connected to the middle position of the bottom of the connecting plate (19). Limiting rods (22) are fixedly connected to the front and rear ends of the top of the connecting plate (19). A limiting groove (23) is opened on one side of the bottom of the baffle plate (3). A return spring (21) is fixedly connected to the bottom of the mounting plate (4).

7. The furnace energy-saving and wear-resistant device according to claim 6, characterized in that: One side of the baffle (3) is embedded inside the second mounting groove (18), and the limiting rod (22) is embedded inside the limiting groove (23).

8. The furnace energy-saving and wear-resistant device according to claim 6, characterized in that: The baffle plate (3) is installed inside the second mounting groove (18) via the limiting rod (22) and the limiting groove (23), and the reset spring (21) is located at the bottom outside the limiting rod (22).

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