Forced continuous deslagging device for coal gasifier

Abstract

The utility model provides a forced continuous deslagging device for a coal gasifier, which relates to the technical field of deslagging of coal gasifiers and comprises a gasifier body, a rotary fire grate rotatably mounted at the inner bottom of the gasifier body and a plurality of slag lock hopper control devices. A motor used for driving the rotary fire grate to rotate is fixedly connected to the outer furnace bottom of the furnace body, a limiting ring rotationally connected with the bottom edge of the rotary fire grate in an embedded mode is arranged at the inner furnace bottom of the furnace body, a bevel gear ring is fixedly connected to the bottom edge of the inner side wall of the rotary fire grate, and when the rotary fire grate rotates, the bevel gear ring can be driven to synchronously rotate; the bevel gear block in meshed connection can be driven to drive the reciprocating lead screw to rotate, then the sliding strip drives the multiple cutting blades on the surface of the sliding strip to move, ash accumulated at an inlet of the slag lock hopper control device is forcibly crushed, crushing of caked ash is achieved, and ash treatment and collection are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of coal gasification furnace slag removal, in particular to a forced continuous slag removal device for a coal gasification furnace. Background Art

[0002] Coal gasifier refers to the main equipment for coal gasification. There are many gasification methods according to the properties of coal and different requirements for coal gas. During the use of coal gasifier, a large amount of waste coal slag will be generated, and if the waste coal slag is not discharged in time, it will affect the use of the equipment.

[0003] Therefore, a forced continuous slag discharge device for a coal gasifier in the prior art has a publication number of CN210974553U. When in use, the slag in the ash layer is discharged into the slag discharge device nearby under the action of the rotating grate. As the material level in the slag discharge lock bucket continues to rise, the control device controls the gate valve to open the sealing plate, and the ash is discharged through the discharge port. At the same time, the water supply control valve is opened to cool the discharged ash and eliminate the dust generated during the ash unloading.

[0004] However, when the generated ash forms agglomerates due to accumulation, the agglomerated ash will accumulate near the rotating grate and easily block the entrance of the slag discharge device, thereby preventing the ash from smoothly entering the slag discharge device. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and proposes a forced continuous slag discharge device for a coal gasifier.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a forced continuous slag discharge device for a coal gasification furnace, comprising a furnace body, a rotating grate rotatably installed at the bottom of the furnace body, and a plurality of slag locking bucket control devices, wherein the furnace bottom outside the furnace body is fixedly connected with a motor for driving the rotating grate to rotate, and the furnace bottom inside the furnace body is provided with a limiting ring rotatably connected to the bottom edge of the rotating grate, the bottom edge of the inner side wall of the rotating grate is fixedly connected with a bevel gear ring, the side wall of the limiting ring near each slag locking bucket control device is penetrated by a reciprocating screw rod rotatably connected, the end face of the reciprocating screw rod located in the rotating grate is fixedly connected with a bevel gear block meshing with the bevel gear ring, the part located outside the rotating grate is threadedly connected with a sliding bar slidably connected to the furnace bottom inside the furnace body, and the sliding bar is fixedly connected with a plurality of cutting blades for crushing ash and slag.

[0007] Preferably, a guide rod is provided through the sliding bar and is distributed parallel to the reciprocating screw rod.

[0008] Preferably, the side wall of the limit ring is located under each reciprocating screw and is fixedly connected with a connecting plate, several of the connecting plates are distributed in a ring array, and one end of several connecting plates is fixedly connected with a connecting ring, the outer side wall of the connecting ring is rotatably connected to the inner wall of the furnace body, and the inner side wall of the connecting ring is rotatably connected to the reciprocating screw and the end face of the guide rod.

[0009] Preferably, several of the connecting plates are integrally formed at the other end inside the rotating grate and are arranged in a ring shape, wherein an electric push rod is fixedly connected to the upper surface of one of the connecting plates, and an anti-slip pad for cooperating with the furnace bottom damping in the furnace body is fixedly connected to the side of the telescopic rod of the electric push rod.

[0010] Preferably, a friction pad is fixedly connected to the end surface of the telescopic rod of the electric push rod, and the electric push rod is arranged parallel to the main shaft of the motor.

[0011] Preferably, the main shaft of the motor extends into the furnace body and is fixedly connected to the inner wall of the rotating grate, and a friction ring for damping cooperation with the friction pad is fixedly connected to the main shaft of the motor.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, when the rotary grate rotates, it will drive the bevel gear ring to rotate synchronously, and when the bevel gear ring rotates, it will drive the meshing bevel gear block to drive the reciprocating screw to rotate, so that the sliding bar drives the several cutting blades on its surface to move, and the ash accumulated at the entrance of the slag lock bucket control device is forcibly broken, that is, the agglomerated ash is broken, which is convenient for the ash processing and collection.

[0014] 2. In the utility model, when the electric push rod is extended, the anti-skid pad is separated from the furnace bottom in the furnace body, and the friction pad on the end face of the telescopic rod is tightly against the friction ring on the motor main shaft, and the friction force is used to fix the relative position of the friction pad and the friction ring. Then, when the motor drives the rotating grate to rotate, the friction pad will be synchronously driven to drive the electric push rod, the connecting plate and the limit ring to rotate, so as to stir the ash accumulated on the furnace bottom in the furnace body, and move the ash accumulated on the furnace bottom in the furnace body to the adjacent slag lock bucket control device 2. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model provides a three-dimensional structural schematic diagram of a forced continuous slag discharge device for a coal gasifier;

[0016] Figure 2 The utility model proposes a forced continuous slag discharge device for a coal gasification furnace Figure 1 A schematic cross-sectional structure diagram of ;

[0017] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0018] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0019] Legend: 1. Furnace body; 2. Slag lock bucket control device; 3. Cutting disc; 4. Sliding bar; 5. Reciprocating screw; 6. Guide rod; 7. Connecting ring; 8. Rotating grate; 9. Connecting plate; 10. Bevel gear ring; 11. Motor; 12. Bevel gear block; 13. Friction ring; 14. Friction pad; 15. Electric push rod; 16. Anti-slip pad; 17. Limiting ring. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0022] like Figure 1-4As shown, a forced continuous slag discharge device for a coal gasifier comprises a furnace body 1, a rotary grate 8 rotatably installed at the bottom of the furnace body 1, and a plurality of slag lock bucket control devices 2. The specific structure of the slag lock bucket control device 2 in this scheme refers to a receiving hopper and a slag lock bucket in a forced continuous slag discharge device for a coal gasifier with publication number CN210974553U. A motor 11 for driving the rotary grate 8 to rotate is fixedly connected to the furnace bottom of the furnace body 1, and a limiting ring 17 rotatably connected to the bottom edge of the rotary grate 8 is provided at the furnace bottom of the furnace body 1. When the limiting ring 17 is fixed to the furnace bottom of the furnace body 1, the motor 11 drives the rotary grate 8 to rotate, so that the accumulated ash and slag can enter the slag lock bucket control device 2 at the corresponding position. A bevel gear ring 10 is fixedly connected to the bottom edge of the inner side wall of the rotary grate 8, and the side wall of the limiting ring 17 is close to each slag lock bucket control device 2. A reciprocating screw rod 5 is rotatably connected through it, and a bevel gear block 12 meshing with a bevel gear ring 10 is fixedly connected to the end face of the reciprocating screw rod 5 located in the rotating grate 8, and a sliding bar 4 slidably connected to the furnace bottom in the furnace body 1 is threadedly connected to the part located outside the rotating grate 8, and a plurality of cutting blades 3 for crushing ash and slag are fixedly connected to the sliding bar 4, and a guide rod 6 parallel to the reciprocating screw rod 5 is arranged through the sliding bar 4. Under the support of the guide rod 6, when the rotating grate 8 rotates relative to the limit ring 17, the bevel gear ring 10 will be driven to rotate synchronously, and when the bevel gear ring 10 rotates, the meshing bevel gear block 12 will be driven to drive the reciprocating screw rod 5 to rotate, thereby realizing that the sliding bar 4 drives the plurality of cutting blades 3 on its surface to move, and the ash and slag accumulated at the entrance of the slag lock bucket control device 2 is forcibly crushed, that is, the agglomerated ash and slag are crushed, which is convenient for ash processing and collection.

[0023] Further discussion: The side wall of the limiting ring 17 is located below each reciprocating screw rod 5 and is fixedly connected with a connecting plate 9, a plurality of connecting plates 9 are distributed in a ring array, and one end of a plurality of connecting plates 9 is fixedly connected with a connecting ring 7, the outer side wall of the connecting ring 7 is rotatably connected to the inner wall of the furnace body 1, and the inner side wall of the connecting ring 7 is rotatably connected to the end face of the reciprocating screw rod 5 and the guide rod 6, the position of the connecting plate 9 is fixed by the limiting ring 17, and then the position of the connecting ring 7 is fixed, and then the position of the reciprocating screw rod 5 and the guide rod 6 is fixed by the connecting ring 7, and in order to fix the position of the limiting ring 17, a plurality of connecting plates 9 are integrally formed at the other end inside the rotating grate 8 and are annularly arranged, and an electric push rod 15 is fixedly connected to the upper surface of one of the connecting plates 9, and an anti-skid pad 16 for cooperating with the damping of the furnace bottom in the furnace body 1 is fixedly connected to the side of the telescopic rod of the electric push rod 15, and the anti-skid pad 16 on the telescopic rod is tightly fitted against the furnace bottom in the furnace body 1 by contracting the electric push rod 15, and friction is used to prevent slipping The pad 16 rotates, thereby preventing the electric push rod 15 and the connecting plate 9 from rotating, that is, the position of the limit ring 17 is fixed, the end face of the telescopic rod of the electric push rod 15 is fixedly connected with the friction pad 14, and the electric push rod 15 is arranged parallel to the main shaft of the motor 11, the main shaft of the motor 11 extends into the furnace body 1, and is fixedly connected to the inner wall of the rotating grate 8, and the main shaft of the motor 11 is fixedly connected with a friction ring 13 for damping with the friction pad 14. When the electric push rod 15 is extended, the anti-slip pad 16 is separated from the furnace body 1 The bottom of the furnace is formed, and the friction pad 14 on the end face of the telescopic rod is tightly against the friction ring 13 on the main shaft of the motor 11, and the friction force is used to fix the relative position of the friction pad 14 and the friction ring 13. Then, when the motor 11 drives the rotating grate 8 to rotate, the friction pad 14 will be synchronously driven to drive the electric push rod 15, the connecting plate 9 and the limit ring 17 to rotate, that is, the ash accumulated on the bottom of the furnace body 1 is stirred, and the ash accumulated on the bottom of the furnace body 1 is moved to the adjacent slag lock bucket control device 2.

[0024] Working principle: when in use, the electric push rod 15 contracts to achieve the anti-skid pad 16 on its telescopic rod tightly fitting against the furnace bottom in the furnace body 1, and the friction force is used to prevent the anti-skid pad 16 from rotating, thereby preventing the electric push rod 15 and the connecting plate 9 from rotating, that is, the position of the limit ring 17 is fixed, and then the motor 11 is used to drive the rotating grate 8 to rotate relative to the limit ring 17. When the rotating grate 8 rotates relative to the limit ring 17, it will drive the bevel gear ring 10 to rotate synchronously. When the bevel gear ring 10 rotates, it will drive the meshing bevel gear block 12 to drive the reciprocating screw rod 5 to rotate, thereby achieving the sliding bar 4 driving the several cutting blades 3 on its surface to move back and forth along the surface of the reciprocating screw rod 5, and forcibly crushing the slag accumulated at the entrance of the slag lock bucket control device 2, that is, the crushing of the agglomerated slag is achieved, which is convenient for slag processing and collection.

[0025] The wiring diagram of the furnace body 1, the slag lock bucket control device 2, the motor 11 and the electric push rod 15 in the utility model belongs to the common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use. Therefore, the control method and wiring arrangement of the furnace body 1, the slag lock bucket control device 2, the motor 11 and the electric push rod 15 are no longer explained in detail.

[0026] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A forced continuous slag removal device for a coal gasifier, comprising a furnace body (1), a rotating grate (8) rotatably mounted at the bottom of the furnace body (1), and a plurality of slag lock bucket control devices (2), characterized in that: The furnace bottom outside the furnace body (1) is fixedly connected to a motor (11) for driving the rotating grate (8) to rotate, and the furnace bottom inside the furnace body (1) is provided with a limit ring (17) embedded and rotatably connected to the bottom edge of the rotating grate (8), the bottom edge of the inner wall of the rotating grate (8) is fixedly connected to a bevel gear ring (10), and the side wall of the limit ring (17) near each slag lock bucket control device (2) is penetrated by a reciprocating screw rod (5) for rotational connection, the end face of the reciprocating screw rod (5) located inside the rotating grate (8) is fixedly connected to a bevel gear block (12) meshingly connected to the bevel gear ring (10), and the part outside the rotating grate (8) is threadedly connected to a sliding bar (4) slidably connected to the furnace bottom inside the furnace body (1), and a plurality of cutting blades (3) for crushing ash and slag are fixedly connected to the sliding bar (4).

2. The forced continuous slag removal device for a coal gasifier according to claim 1, characterized in that: The sliding bar (4) is provided with a guide rod (6) extending parallel to the reciprocating screw rod (5).

3. The forced continuous slag removal device for a coal gasifier according to claim 1, characterized in that: The side wall of the limit ring (17) is located below each reciprocating screw rod (5) and is fixedly connected to a connecting plate (9). A plurality of the connecting plates (9) are distributed in a ring array, and one end of the plurality of connecting plates (9) is fixedly connected to a connecting ring (7). The outer side wall of the connecting ring (7) is rotatably connected to the inner wall of the furnace body (1), and the inner side wall of the connecting ring (7) is rotatably connected to the end faces of the reciprocating screw rod (5) and the guide rod (6).

4. The forced continuous slag removal device for a coal gasifier according to claim 3, characterized in that: The plurality of connecting plates (9) are integrally formed at the other end of the rotating grate (8) and are arranged in a ring shape, wherein an electric push rod (15) is fixedly connected to the upper surface of one of the connecting plates (9), and an anti-slip pad (16) for cooperating with the furnace bottom damping in the furnace body (1) is fixedly connected to the side of the telescopic rod of the electric push rod (15).

5. The forced continuous slag removal device for a coal gasifier according to claim 4, characterized in that: The end surface of the telescopic rod of the electric push rod (15) is fixedly connected with a friction pad (14), and the electric push rod (15) is arranged parallel to the main shaft of the motor (11).

6. The forced continuous slag removal device for a coal gasifier according to claim 5, characterized in that: The main shaft of the motor (11) extends into the furnace body (1) and is fixedly connected to the inner wall of the rotating grate (8). A friction ring (13) for damping cooperation with a friction pad (14) is fixedly connected to the main shaft of the motor (11).

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