CN223924791U

CN223924791U - Slag discharging device for fluidized bed boiler

Info

Publication number: CN223924791U
Application number: CN202520506290.0U
Authority: CN
Inventors: 路芳; 郑姗; 姜成忠; 耿静; 王博妍
Original assignee: Heilongjiang Hanxing Experimental Equipment Co ltd
Current assignee: Heilongjiang Hanxing Experimental Equipment Co ltd
Priority date: 2025-03-21
Filing date: 2025-03-21
Publication date: 2026-02-17
Anticipated expiration: 2035-03-21

Abstract

The utility model belongs to the technical field of boiler slag removal, in particular to a slag discharging device for a fluidized bed boiler, which comprises a recovery furnace, wherein an anti-blocking mechanism is fixedly arranged at the top of the recovery furnace, the anti-blocking mechanism comprises a first motor, a half gear is fixedly arranged at the output end of the first motor, a cross rod is arranged in the inner cavity of the recovery furnace, a push rod is fixedly arranged at the top of the cross rod, a sliding rod is fixedly arranged at the top of the cross rod, a toothed plate is fixedly arranged on the surface of the sliding rod, the toothed plate is matched with teeth of the half gear for use, the anti-blocking mechanism is arranged and moves upwards in the inner cavity of a connecting port of the recovery furnace through the push rod, so that residues are dredged, and when the half gear is not contacted with the teeth of the toothed plate, the push rod can move downwards under the reaction force of a tension spring, so that continuous dredging of the residues is realized, the blocking of the residues can be avoided, and the normal operation of the recovery furnace is ensured.

Description

Slag discharging device for fluidized bed boiler

Technical Field

The utility model relates to the technical field of boiler slag removal, in particular to a slag discharging device for a fluidized bed boiler.

Background

The circulating fluidized bed combustion technology is an efficient clean combustion technology which is rapidly developed in the last decades, and the technology is widely applied to various fields of power station boilers, industrial boilers, waste treatment and utilization and the like in all countries of the world, and particularly shows stronger competitiveness than other boilers in the aspect of burning inferior coal and oil shale.

When the fluidized bed boiler is used, a large amount of residues are generated and accumulated at the bottom, the residues are collected usually through the connecting recovery furnace, and in the collecting process, the residues are generated at different speeds due to different sizes, so that when large residues are generated rapidly, blockage can occur in the process of being discharged into the inner cavity of the recovery furnace, and the discharging efficiency is reduced.

Disclosure of utility model

Aiming at the problems, the utility model designs the slag discharging device for the fluidized bed boiler, which has a slag dredging function, and can avoid the problems of blocking and reducing the discharging efficiency when massive slag is rapidly generated.

The technical scheme adopted for solving the technical problems is as follows:

The slag discharging device for the fluidized bed boiler comprises a recovery furnace, wherein an anti-blocking mechanism is fixedly arranged at the top of the recovery furnace;

The anti-blocking mechanism comprises a first motor, a half gear is fixedly arranged at the output end of the first motor, a cross rod is arranged in the inner cavity of the recovery furnace, an ejector rod is fixedly arranged at the top of the cross rod, a sliding rod is fixedly arranged at the top of the cross rod, a toothed plate is fixedly arranged on the surface of the sliding rod, and the toothed plate is matched with teeth of the half gear.

Preferably, one side of the recovery furnace is fixedly provided with a second motor, the output end of the second motor is fixedly provided with a rotating rod, one end of the rotating rod is fixedly provided with an impact block, the inner wall of the recovery furnace is fixedly provided with a supporting block, the top of the supporting block is fixedly provided with a spring, one end of the spring is fixedly provided with a screening plate, and the surface of the impact block is matched with the bottom of the screening plate.

Preferably, a guide rod is fixedly arranged at the top of the recovery furnace, a guide ring is fixedly arranged at one side of the sliding rod, and an inner cavity of the guide ring is in sliding connection with the surface of the guide rod.

Preferably, the top of supporting shoe fixed mounting has the telescopic link, the flexible end of telescopic link and the bottom fixed connection of screening board.

Preferably, a tension spring is sleeved on the surface of the guide rod, one end of the tension spring is fixedly connected with the top of the recovery furnace, and the other end of the tension spring is fixedly connected with the bottom of the guide ring.

Preferably, triangular blocks are fixedly arranged on the surface of the ejector rod, and the number of the triangular blocks is a plurality of triangular blocks.

Preferably, a stop block is fixedly arranged at the top of the guide rod, and the bottom of the stop block is matched with the top of the guide ring.

The slag discharging device for the fluidized bed boiler has the advantages that the anti-blocking mechanism is arranged, the slag is dredged by moving the ejector rod upwards in the inner cavity of the connecting port of the recovery furnace, and after the half gear is not contacted with teeth of the toothed plate, the ejector rod can move downwards under the reaction force of the tension spring, so that the ejector rod moves upwards and downwards, continuous dredging of the slag is realized, the blocking of the slag can be avoided, and the normal operation of the recovery furnace is ensured.

Drawings

FIG. 1 is a schematic view showing the overall structure of a slag discharging device for a fluidized bed boiler according to the present utility model;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a structural sectional view of the recovery furnace;

fig. 4 is a schematic view of the structure of the screening deck.

The device comprises a recycling furnace 1, a2, an anti-blocking mechanism 201, a first motor 202, a half gear 203, a cross rod 204, a push rod 205, a sliding rod 206, a toothed plate 3, a second motor 4, a rotating rod 5, an impact block 6, a supporting block 7, a spring 8, a screening plate 9, a guide rod 10, a telescopic rod 11, a tension spring 12, a guide ring 13, a triangular block 14 and a stop block.

Detailed Description

The following detailed description of the utility model will be given with reference to the accompanying drawings.

Referring to fig. 1 to 3, the slag discharging device for the fluidized bed boiler in the specific embodiment comprises a recovery furnace 1, wherein an anti-blocking mechanism 2 is fixedly arranged at the top of the recovery furnace 1;

The anti-blocking mechanism 2 comprises a first motor 201, a half gear 202 is fixedly arranged at the output end of the first motor 201, a cross rod 203 is arranged in the inner cavity of the recovery furnace 1, a push rod 204 is fixedly arranged at the top of the cross rod 203, a sliding rod 205 is fixedly arranged at the top of the cross rod 203, a toothed plate 206 is fixedly arranged on the surface of the sliding rod 205, and the toothed plate 206 is matched with teeth of the half gear 202.

Referring to fig. 3 and 4, a second motor 3 is fixedly installed at one side of the recovery furnace 1, a rotating rod 4 is fixedly installed at the output end of the second motor 3, an impact block 5 is fixedly installed at one end of the rotating rod 4, a supporting block 6 is fixedly installed on the inner wall of the recovery furnace 1, a spring 7 is fixedly installed at the top of the supporting block 6, a screening plate 8 is fixedly installed at one end of the spring 7, the surface of the impact block 5 is matched with the bottom of the screening plate 8, when residues enter the recovery furnace 1, the second motor 3 is started through an external power supply, the rotating rod 4 is driven to rotate through the second motor 3, so that the impact block 5 is driven to rotate, the impact block 5 can impact the bottom of the screening plate 8, so that the screening plate 8 is driven to move upwards, and the spring 7 is driven to extend, after the impact block 5 is not contacted with the bottom of the screening plate 8, the screening plate 8 can be driven to move downwards under the reaction force of the spring 7, so that the upper and lower shaking of the screening plate 8 is realized, larger residues and smaller residues can be separated, and subsequent treatment and utilization are facilitated;

Referring to fig. 2, a guide rod 9 is fixedly installed at the top of the recovery furnace 1, a guide ring 12 is fixedly installed at one side of a slide rod 205, an inner cavity of the guide ring 12 is slidably connected with the surface of the guide rod 9, and the movement of the slide rod 205 can be guided by the sliding connection of the guide rod 9 and the guide ring 12, so that the slide rod 205 keeps vertical up-and-down movement;

referring to fig. 4, a telescopic rod 10 is fixedly installed at the top of the supporting block 6, the telescopic end of the telescopic rod 10 is fixedly connected with the bottom of the screening plate 8, and the telescopic rod 10 is arranged to guide the movement of the screening plate 8, so that the screening plate 8 keeps vertical up-and-down shaking;

referring to fig. 2, a tension spring 11 is sleeved on the surface of the guide rod 9, one end of the tension spring 11 is fixedly connected with the top of the recovery furnace 1, the other end of the tension spring 11 is fixedly connected with the bottom of the guide ring 12, by arranging the tension spring 11, the tension spring 11 can be driven to stretch in the process that the sliding rod 205 moves upwards, and when the half gear 202 is not contacted with the toothed plate 206, the sliding rod 205 can be driven to move downwards under the reaction force of the tension spring 11, so that the normal downward movement of the ejector rod 204 is ensured;

referring to fig. 3, triangular blocks 13 are fixedly arranged on the surface of the ejector rod 204, the number of the triangular blocks 13 is a plurality, and the triangular blocks 13 can play a role in crushing ash residues, so that the anti-blocking effect is further improved;

Referring to fig. 2, a stopper 14 is fixedly installed at the top of the guide rod 9, the bottom of the stopper 14 is matched with the top of the guide ring 12, and the stopper 14 is arranged to limit the upward moving distance of the sliding rod 205, so that the guide ring 12 is prevented from being separated from the guide rod 9;

The operation principle is that a large amount of residues are accumulated at the bottom of the fluidized bed boiler after the reaction is finished, holes are reserved at the bottom of the fluidized bed boiler and are in butt joint with the recovery furnace 1, so that slag is discharged to the recovery furnace 1, in the slag discharging process, a user starts a first motor 201 through an external power supply, a half gear 202 is driven to start rotating through the first motor 201, after teeth of the half gear 202 are contacted with a toothed plate 206, the toothed plate 206 can be driven to move upwards, through connection of a cross rod 203, a mandril 204 can move upwards in an inner cavity of a connecting port of the recovery furnace 1, and accordingly the residues are dredged, and after the half gear 202 is not contacted with the teeth of the toothed plate 206, the mandril 204 can move downwards under the reaction force of a tension spring 11, so that continuous dredging of the residues is realized, the blockage of the residues can be avoided, and the normal operation of the recovery furnace 1 is ensured.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. The slag discharging device for the fluidized bed boiler is characterized by comprising a recovery furnace (1), wherein an anti-blocking mechanism (2) is fixedly arranged at the top of the recovery furnace (1);

Anti-blocking mechanism (2) are including first motor (201), the output fixed mounting of first motor (201) has half gear (202), the inner chamber of recovery stove (1) is provided with horizontal pole (203), the top fixed mounting of horizontal pole (203) has ejector pin (204), the top fixed mounting of horizontal pole (203) has slide bar (205), the fixed surface of slide bar (205) installs pinion rack (206), pinion rack (206) are used with the tooth cooperation of half gear (202).

2. The slag discharging device for the fluidized bed boiler of claim 1, wherein a second motor (3) is fixedly arranged on one side of the recovery furnace (1), a rotating rod (4) is fixedly arranged at the output end of the second motor (3), an impact block (5) is fixedly arranged at one end of the rotating rod (4), a supporting block (6) is fixedly arranged on the inner wall of the recovery furnace (1), a spring (7) is fixedly arranged at the top of the supporting block (6), a screening plate (8) is fixedly arranged at one end of the spring (7), and the surface of the impact block (5) is matched with the bottom of the screening plate (8).

3. The slag discharging device for the fluidized bed boiler according to claim 1, wherein a guide rod (9) is fixedly arranged at the top of the recovery furnace (1), a guide ring (12) is fixedly arranged at one side of the sliding rod (205), and an inner cavity of the guide ring (12) is in sliding connection with the surface of the guide rod (9).

4. The slag discharging device for the fluidized bed boiler according to claim 2, wherein the top of the supporting block (6) is fixedly provided with a telescopic rod (10), and the telescopic end of the telescopic rod (10) is fixedly connected with the bottom of the screening plate (8).

5. The slag discharging device for the fluidized bed boiler according to claim 3, wherein the surface of the guide rod (9) is sleeved with a tension spring (11), one end of the tension spring (11) is fixedly connected with the top of the recovery furnace (1), and the other end of the tension spring (11) is fixedly connected with the bottom of the guide ring (12).

6. The slag discharging device for the fluidized bed boiler according to claim 1, wherein triangular blocks (13) are fixedly arranged on the surface of the ejector rod (204), and the number of the triangular blocks (13) is a plurality.

7. A slag discharging device for a fluidized bed boiler according to claim 3, wherein a stop block (14) is fixedly arranged at the top of the guide rod (9), and the bottom of the stop block (14) is matched with the top of the guide ring (12).