Anti-blocking waste heat boiler fire grate

Abstract

The utility model discloses an anti-blocking waste heat boiler fire grate which comprises a base, a fire grate body is installed on the top of the base in an inclined mode, an auxiliary assembly used for assisting the fire grate body to incline is arranged on the base, and an air supply assembly used for supplying air for fuel combustion is arranged in the base. According to the device, the output end of the driving motor rotates to drive the threaded rod fixedly connected with the output end of the driving motor to rotate, the moving plate is limited through the two sets of limiting rods, and the moving plate can move through the limiting rods; according to the fire grate, the movable plate is rotated to move, the movable plate drives the two first connecting blocks to move, the inclination angles of the four supporting plates can be changed through cooperation of the two second connecting blocks, then the fire grate can be inclined through cooperation of the auxiliary assembly, the purpose of removing slag is achieved, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of grates, in particular to a grate for a waste heat boiler that prevents blockage. Background Technique

[0002] The component in a boiler or industrial furnace that stacks solid fuel and enables its effective combustion. The entire grate mainly includes two parts: a frame and grate bars. The grate bars are usually made of cast iron. After assembly, there are necessary ventilation gaps between the bars. And often a partitioned ventilation chamber for adjusting the air volume is arranged below the grate, so that air can enter the fuel layer through the gaps for combustion.

[0003] For example, the grate for a boiler (Publication No.: CN207422246U), this device includes a grate frame body. Blower interfaces are arranged on both side walls of the grate frame body. Above the grate frame body, a grate for carrying boiler fuel is inclinedly arranged. A wind chamber is formed between the grate and the grate frame body. The grate is composed of multiple parallel grate bars. Adjacent grate bars are connected by a number of tile-shaped grate plates that are sequentially overlapped and buckled on the grate bars. The middle part of the tile-shaped grate plate bulges upward and is inclined downward as a whole. An air outlet for discharging the air in the wind chamber obliquely downward is arranged between the upper and lower adjacent tile-shaped grate plates. A flipping mechanism for changing the inclination angle of the grate is also arranged at the top of the rear side wall of the grate frame body. This device has a simple structure and ingenious design. It can not only cool the tile-shaped grate plates through a cooling mechanism to extend the service life, but also completely remove the slag through the flipping mechanism, greatly improving the thermal efficiency of the boiler.

[0004] When this device is in use, through the telescopic movement of the piston rod of the cylinder, the push rod is pushed to move. However, the push plate can only move in a horizontal state, which cannot make the flipping frame body flip, and thus cannot make the grate tilt, and cannot achieve the purpose of removing the slag, so the practicability is relatively low. Therefore, we need to propose a grate for a waste heat boiler that prevents blockage. Content of the Utility Model

[0005] The purpose of the utility model is to provide a grate for a waste heat boiler that prevents blockage, which can make the grate tilt to achieve the purpose of removing the slag and has relatively high practicability, so as to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] An anti-blocking grate for a waste heat boiler, comprising a base, a grate is tiltably installed on the top of the base, an auxiliary component for assisting the grate to tilt is arranged on the base, an air supply component for supplying air for fuel combustion is arranged inside the base, a moving plate is movably installed inside the base, a moving component for moving the moving plate is arranged inside the base, two groups of first connection blocks are symmetrically and fixedly installed on the top of the moving plate, supporting plates are rotatably connected to both sides of the two groups of first connection blocks, two groups of second connection blocks are fixedly connected to the bottom of the grate, and one ends of the four groups of supporting plates are respectively rotatably installed on both sides of the two groups of second connection blocks.

[0008] Preferably, the auxiliary component includes two groups of support blocks, the two groups of support blocks are respectively fixedly installed on both sides of the base, and the tops of the two groups of support blocks are on the same horizontal line as the top of the base. Mounting seats are fixedly installed on the tops of the two groups of support blocks, rotating rods are rotatably installed on the opposite sides of the two groups of mounting seats, and the opposite ends of the two groups of rotating rods are fixedly connected to the grate.

[0009] Preferably, the moving component includes a threaded rod, the threaded rod is rotatably installed inside the base, one end of the threaded rod is rotatably connected to one side of the inner wall of the base, and the other end of the threaded rod penetrates through the base and is fixedly connected to a driving motor.

[0010] Preferably, two groups of limiting rods are symmetrically and fixedly installed inside the base, both ends of the two groups of limiting rods are fixedly connected to both sides of the inner wall of the base, and the moving plate is slidably installed on the outer walls of the two groups of limiting rods.

[0011] Preferably, the air supply component includes an air inlet pipe, the air inlet pipe is installed inside the base, one end of the air inlet pipe penetrates through the base and is located on one side of the base, and three groups of air outlet pipes are fixedly communicated with the top of the air inlet pipe.

[0012] Preferably, three groups of air gathering cavities are opened inside the grate, a number of air outlet holes are opened on both sides of the grate where the three groups of air gathering cavities are located, and air inlet holes are opened at the bottoms of the three groups of air gathering cavities.

[0013] Preferably, the air inlet holes are adapted to the air outlet pipes, and the air outlet pipes are communicated with the air gathering cavities through the air inlet holes.

[0014] Preferably, a support frame is fixedly installed at the inner bottom of the base, and the air inlet pipe is installed on the top of the support frame.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] The utility model rotates through the output end of a driving motor, drives a threaded rod fixedly connected thereto to rotate, limits the movement of a moving plate through two limiting rods, enables the moving plate to move, the moving plate drives two first connecting blocks to move, and through the cooperation of two second connecting blocks, the inclination angles of four supporting plates can be changed. Then, through the cooperation of an auxiliary assembly, the grate can be inclined to achieve the purpose of slag removal, and the practicability is relatively high. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the utility model;

[0018] Figure 2 is a schematic structural diagram of the grate of the utility model in a sectional view;

[0019] Figure 3 is a schematic structural diagram of the whole of the utility model in a sectional view;

[0020] Figure 4 is a schematic structural diagram of the auxiliary assembly of the utility model.

[0021] In the figure: 1, base; 2, grate; 3, moving plate; 4, first connecting block; 5, supporting plate; 6, second connecting block; 7, supporting block; 8, mounting seat; 9, rotating rod; 10, threaded rod; 11, driving motor; 12, limiting rod; 13, air inlet pipe; 14, air outlet pipe; 15, air gathering cavity; 16, air outlet; 17, air inlet; 18, support frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4 , the present utility model provides a technical solution: a clogging-proof waste heat boiler grate, including a base 1, a grate 2 is tiltably installed on the top of the base 1, and an auxiliary assembly for assisting the grate 2 to tilt is arranged on the base 1.

[0024] In a further preferred embodiment, an air supply assembly for supplying air for fuel combustion is arranged inside the base 1, a moving plate 3 is movably installed inside the base 1, and a moving assembly for moving the moving plate 3 is arranged inside the base 1.

[0025] On the top of the moving plate 3, two groups of first connecting blocks 4 are symmetrically and fixedly installed. On both sides of the two groups of first connecting blocks 4, support plates 5 are rotatably connected. At the bottom of the grate 2, two groups of second connecting blocks 6 are fixedly connected. One ends of the four support plates 5 are respectively rotatably installed on both sides of the two groups of second connecting blocks 6.

[0026] Specifically, through the moving component, the moving plate 3 is moved. The moving plate 3 drives the two groups of first connecting blocks 4 to move. Through the cooperation of the two groups of second connecting blocks 6, the inclination angles of the four support plates 5 can be changed. Then, through the cooperation of the auxiliary component, the grate 2 can be inclined to achieve the purpose of slag removal, with high practicability.

[0027] In a further preferred embodiment, the auxiliary component includes two support blocks 7. The two support blocks 7 are respectively fixedly installed on both sides of the base 1, and the tops of the two support blocks 7 are on the same horizontal line as the top of the base 1. On the tops of the two support blocks 7, mounting seats 8 are fixedly installed. On the opposite sides of the two mounting seats 8, rotating rods 9 are rotatably installed. The opposite ends of the two rotating rods 9 are fixedly connected to the grate 2, so that the grate 2 can be inclined around the two rotating rods 9 to provide assistance for the inclination of the grate 2.

[0028] In a further preferred embodiment, the moving component includes a threaded rod 10. The threaded rod 10 is rotatably installed inside the base 1. One end of the threaded rod 10 is rotatably connected to one side of the inner wall of the base 1. The other end of the threaded rod 10 penetrates through the base 1 and is fixedly connected to a driving motor 11. By the rotation of the output end of the driving motor 11, the threaded rod 10 fixedly connected thereto is driven to rotate, so that the moving plate 3 moves.

[0029] In a further preferred embodiment, two groups of limiting rods 12 are symmetrically and fixedly installed inside the base 1. The two ends of the two groups of limiting rods 12 are respectively fixedly connected to both sides of the inner wall of the base 1, and the moving plate 3 is slidably installed on the outer walls of the two groups of limiting rods 12. The moving plate 3 is limited by the two groups of limiting rods 12, so that the moving plate 3 can move when the threaded rod 10 rotates.

[0030] In a further preferred embodiment, the air supply component includes an air inlet pipe 13. The air inlet pipe 13 is installed inside the base 1. One end of the air inlet pipe 13 penetrates through the base 1 and is located on one side of the base 1. Three exhaust pipes 14 are fixedly communicated with the top of the air inlet pipe 13. The end of the air inlet pipe 13 penetrating through the base 1 is used to communicate with an external air pump, so that external air enters the inside of the air inlet pipe 13 and is then discharged through the three exhaust pipes 14.

[0031] In a further preferred embodiment, three air gathering cavities 15 are formed inside the grate 2. A number of air outlet openings 16 are formed on both sides of the grate 2 where the three air gathering cavities 15 are located. And air inlet openings 17 are formed at the bottoms of the three air gathering cavities 15 of the grate 2. The air inlet openings 17 are adapted to the exhaust air pipes 14, and the exhaust air pipes 14 are communicated with the air gathering cavities 15 through the air inlet openings 17. The three exhaust air pipes 14 are used to discharge the air in the air inlet pipe 13 into the three air gathering cavities 15, and then the air can be discharged through the number of air outlet openings 16 to provide combustion support for the fuel combustion, so that the fuel burns sufficiently.

[0032] In a further preferred embodiment, a support frame 18 is fixedly installed on the inner bottom of the base 1, and the air inlet pipe 13 is installed on the top of the support frame 18. The support frame 18 supports and fixes the air inlet pipe 13 to prevent the air inlet pipe 13 from shifting, so that the three exhaust air pipes 14 can always be aligned with the three air inlet openings 17, ensuring sufficient combustion of the fuel.

[0033] Working principle: When the present utility model is in use, fuel is fed on the grate 2. By connecting the air inlet pipe 13 through one end of the base 1 to an external air pump, external air enters the interior of the air inlet pipe 13. Then, the air is discharged into the three air gathering cavities 15 through the three exhaust air pipes 14 and the three air inlet openings 17, and then the air can be discharged through the number of air outlet openings 16 to provide combustion support for the fuel combustion, so that the fuel burns sufficiently. After the fuel combustion is completed, the output end of the driving motor 11 rotates to drive the threaded rod 10 fixedly connected thereto to rotate. The moving plate 3 is limited by the two limiting rods 12, so that the moving plate 3 moves. The moving plate 3 drives the two first connection blocks 4 to move. Through the cooperation of the two second connection blocks 6, the inclination angles of the four support plates 5 can be changed. Then, through the cooperation of the auxiliary component, the grate 2 can be inclined to achieve the purpose of slag removal, and the practicability is relatively high.

[0034] Although the embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A clogging-proof grate of a waste heat boiler, characterized in that, Including: A base (1), on the top of which a grate (2) is tiltably installed, and an auxiliary component for assisting the grate (2) to tilt is arranged on the base (1); An air supply component for supplying air for fuel combustion is arranged inside the base (1), a moving plate (3) is movably installed inside the base (1), and a moving component for moving the moving plate (3) is arranged inside the base (1); Two groups of first connection blocks (4) are symmetrically and fixedly installed on the top of the moving plate (3), support plates (5) are rotatably connected to both sides of the two groups of first connection blocks (4), two groups of second connection blocks (6) are fixedly connected to the bottom of the grate (2), and one ends of the four groups of support plates (5) are respectively rotatably installed on both sides of the two groups of second connection blocks (6).

2. The anti-clogging grate of a waste heat boiler according to claim 1, wherein: The auxiliary component includes two groups of support blocks (7); The two groups of support blocks (7) are respectively fixedly installed on both sides of the base (1), and the tops of the two groups of support blocks (7) are on the same horizontal line as the top of the base (1); Mounting seats (8) are fixedly installed on the tops of the two groups of support blocks (7), rotating rods (9) are rotatably installed on the opposite sides of the two groups of mounting seats (8), and the opposite ends of the two groups of rotating rods (9) are fixedly connected to the grate (2).

3. A clogging-proof waste heat boiler grate according to claim 1, characterized in that: The moving component includes a threaded rod (10), the threaded rod (10) is rotatably installed inside the base (1), one end of the threaded rod (10) is rotatably connected to one side inner wall of the base (1), and the other end of the threaded rod (10) penetrates through the base (1) and is fixedly connected to a driving motor (11).

4. A clogging-proof waste heat boiler grate according to claim 1, characterized in that: Two groups of limiting rods (12) are symmetrically and fixedly installed inside the base (1), the two ends of the two groups of limiting rods (12) are respectively fixedly connected to the two side inner walls of the base (1), and the moving plate (3) is slidably installed on the outer walls of the two groups of limiting rods (12).

5. A clogging-proof waste heat boiler grate according to claim 1, characterized in that: The air supply component includes an air inlet pipe (13), the air inlet pipe (13) is installed inside the base (1), one end of the air inlet pipe (13) penetrates through the base (1) and is located on one side of the base (1), and three exhaust pipes (14) are fixedly communicated with the top of the air inlet pipe (13).

6. The anti-clogging waste heat boiler grate according to claim 5, characterized in that: Three air gathering cavities (15) are formed inside the grate (2), a number of air outlet holes (16) are formed on both sides of the grate (2) where the three air gathering cavities (15) are located, and air inlet holes (17) are formed at the bottoms of the three air gathering cavities (15) of the grate (2).

7. The anti-clogging grate of a waste heat boiler according to claim 6, characterized in that: The air inlet holes (17) are adapted to the exhaust pipes (14), and the exhaust pipes (14) are communicated with the air gathering cavities (15) through the air inlet holes (17).

8. A clogging-proof waste heat boiler grate according to claim 7, characterized in that: A support frame (18) is fixedly installed on the inner bottom of the base (1), and the air inlet pipe (13) is installed on the top of the support frame (18).

Images