CN216402592U - Slag loading bucket device of circulating fluidized bed boiler - Google Patents

Abstract

The utility model discloses a slag-loading bucket device of a circulating fluidized bed boiler, which comprises: the barrel body is provided with a cavity for containing materials, the lower part of the cavity is provided with a bottom plate, and a circular discharge hole is formed in the bottom plate; the sealing cover body is in a conical shape with a small upper part and a big lower part, and can move from bottom to top and seal the circular discharge hole; the lower end of the barrel body extends downwards out of the lower end of the bottom plate, and when the circular discharge hole is sealed by the sealing cover body, the bottom surface of the sealing cover body is positioned above the bottom surface of the lower end of the barrel body; and the guide rod is movably arranged in the cavity, the lower end of the guide rod is connected with the middle part of the upper end of the sealing cover body, the upper end of the guide rod extends out of the upper part of the barrel body, and a hanging ring is arranged at the upper end of the guide rod. By adopting the bucket lifting device, the circular discharge hole can be automatically opened and closed by moving the sealing cover body up and down, so that the automatic sealing and automatic discharging functions of the circular discharge hole are realized, the labor intensity of workers is reduced, and the working efficiency is improved.

Description

Slag loading bucket device of circulating fluidized bed boiler

Technical Field

The utility model relates to the technical field of bucket equipment, in particular to a slag loading bucket device of a circulating fluidized bed boiler.

Background

The circulating fluidized bed boiler is ignited for the first time or is subjected to overhaul, then cold slag is filled into a hearth and used as a heat carrier for starting ignition of the boiler, a movable electric hoist is usually adopted to lift a hoisting barrel when the boiler is filled with the cold slag, the hoisting barrel is filled with the cold slag on a zero-meter layer, then the cold slag is hoisted to a cold slag collecting bucket platform above a coal feeder to manually unload the cold slag, and the coal feeder is started to convey the cold slag into the boiler. The hoisting bucket is manually unloaded when being hoisted to the cold slag collecting bucket for unloading, and the hoisting bucket cannot be made to be large due to the adoption of manual unloading, the labor intensity is high, the dust in the working environment is large, the occupational health of workers is seriously influenced, and the slag loading efficiency of the circulating fluidized bed boiler is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a slag-loading bucket device of a circulating fluidized bed boiler, so as to overcome the defects of high labor intensity and low slag-loading efficiency of the circulating fluidized bed boiler when the conventional bucket is used.

In order to achieve the above object, the present invention provides a slag-charging bucket device for a circulating fluidized bed boiler, comprising: the barrel body is provided with a cavity for containing materials, the lower part of the cavity is provided with a bottom plate, and the bottom plate is provided with a circular discharge hole; the sealing cover body is in a conical shape with a small upper part and a big lower part, and can move from bottom to top and seal the circular discharge hole; the lower end of the barrel body extends downwards out of the lower end of the bottom plate, and when the circular discharge hole is sealed by the sealing cover body, the bottom surface of the sealing cover body is positioned above the bottom surface of the lower end of the barrel body; and the guide rod is movably arranged in the cavity, the lower end of the guide rod is connected with the middle part of the upper end of the sealing cover body, the upper end of the guide rod extends out of the upper part of the barrel body, and a hanging ring is arranged at the upper end of the guide rod.

Preferably, in the above technical solution, the bottom plate is in a conical shape with a large top and a small bottom, and a center of the circular discharge hole is collinear with an axis of the conical bottom plate.

Preferably, in the above technical scheme, the top of the cavity is open, a fixed guide ring is arranged at the opening at the top of the cavity, the fixed guide ring is fixedly connected with the barrel body through a connecting rod, and the upper end of the guide rod movably penetrates through the fixed guide ring.

Preferably, in the above technical scheme, the number of the connecting rods is at least three, each connecting rod is connected between the fixed guide ring and the barrel body, and all the connecting rods are radially distributed at even intervals.

Preferably, in the above technical scheme, the upper end of the barrel body is provided with a reinforcing ring, and the outer end of the connecting rod is connected with the reinforcing ring.

Compared with the prior art, the utility model has the following beneficial effects:

1. the circular discharge hole of the barrel body is sealed through the sealing cover body, and the sealing cover body is conical, so that the sealing cover body can be driven to close and open the circular discharge hole through the up-and-down movement of the guide rod, and the lifting and discharging are carried out; when in hoisting, the automatic sealing of the sealing cover body is realized under the action of the gravity of the bucket and the materials in the bucket, and the circular discharge hole is closed to prevent slag leakage at the bottom of the bucket; after the slag is lifted to the slag hopper, the lifting bucket is put down, the guide rod and the sealing cover body continue to move downwards under the action of gravity, the circular discharge port is opened, and the slag in the bucket is naturally discharged into the cold slag collecting hopper.

2. The bottom plate is conical, so that materials in the cavity can be conveniently discharged, and the materials are prevented from being accumulated on the bottom plate.

3. The top of the cavity is provided with the fixed guide ring, and the upper end of the guide rod is movably arranged on the fixed guide ring in a penetrating manner, so that the guide rod can move up and down along the fixed guide ring, the guide rod is prevented from swinging in the plane of the cavity, the positioning accuracy of the sealing cover body and the circular discharge hole is improved, and the sealing performance of the sealing cover body is improved.

Drawings

Fig. 1 is a schematic structural view of a slag-charging bucket assembly of a circulating fluidized bed boiler according to the present invention.

Fig. 2 is a schematic top view of fig. 1 according to the present invention.

Description of the main reference numerals:

1-lifting ring, 2-reinforcing ring, 3-guide rod, 4-barrel body, 5-sealing cover body, 6-connecting rod, 7-cavity body, 8-circular discharge hole and 9-bottom plate.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

Fig. 1 and 2 are schematic structural views illustrating a slag-loading bucket assembly for a circulating fluidized bed boiler according to a preferred embodiment of the present invention, the bucket assembly including a bucket body 4, a sealing cover body 5, and a guide bar 3. Referring to fig. 1 and 2, the barrel 4 is provided with a cavity 7 for containing materials, a bottom plate 9 is arranged at the lower part of the cavity 7, and a circular discharge hole 8 is formed in the bottom plate 9. The seal cover body 5 is in a conical shape with a small upper part and a large lower part, the seal cover body 5 can move from bottom to top and seal the circular discharge hole 8, and the circular discharge hole 8 can be opened or closed through the up-and-down movement of the seal cover body 5. Wherein, the lower extreme of staving 4 extends downwards outside the lower extreme of bottom plate 9, and when the sealed circular discharge gate 8 of sealed lid 5, the bottom surface of sealed lid 5 is located the top of the bottom surface of staving 4 lower extreme to make sealed lid 5 can move down under the action of gravity, open circular discharge gate 8. The guide rod 3 is movably arranged in the cavity 7, the lower end of the guide rod 3 is connected with the middle part of the upper end of the sealing cover body 5, namely, the guide rod 3 and the axis of the sealing cover body 5 are collinear. The upper end of the guide rod 3 extends out of the upper part of the barrel body 4, the upper end of the guide rod 3 is provided with a hanging ring 1, and the hoisting device is convenient to connect with the hanging ring 1 to hoist the bucket. Because the sealing cover body 5 is conical, the sealing cover body 5 can be driven to close and open the circular discharge hole 8 by the up-and-down movement of the guide rod 3, and the hoisting and the unloading are carried out; during hoisting, the automatic sealing of the sealing cover body is realized under the action of the gravity of the bucket and materials in the bucket, and the circular discharge hole 8 is closed to prevent slag leakage at the bottom of the bucket; after the lifting bucket is lifted in place, the lifting bucket is placed on the large-aperture grid plate above the cold slag collecting hopper, the sealing cover body 5 continues to move downwards under the action of gravity, the circular discharge port 8 is opened, and furnace slag in the bucket is naturally discharged into the cold slag collecting hopper, so that automatic discharging can be realized. The whole slag charging process is simple to operate, the automatic sealing and discharging functions of the circular discharge port 8 can be realized, the structure is simple, the labor intensity of workers is reduced, and the slag charging efficiency of the circulating fluidized bed boiler is improved.

Referring to fig. 1 and 2, the bottom plate 9 may be flat or inclined. Preferably, the bottom plate 9 is conical with a large upper part and a small lower part, so that the material in the cavity 7 can be discharged conveniently, and the material is prevented from being accumulated on the bottom plate 9. The circle center of the circular discharge port 8 is collinear with the axis of the conical bottom plate 9, and the axis of the conical bottom plate 9 is preferably collinear with the axis of the barrel body 4, so that the lifting of the bucket is facilitated.

Referring to fig. 1 and 2, a feed inlet of the cavity 7 may be disposed on the top or the side of the cavity 7, in order to facilitate slag loading operation of the cavity 7, preferably, the top of the cavity 7 is open, and a fixed guide ring is disposed at the top opening of the cavity 7, the fixed guide ring is fixedly connected to the barrel 4 through a connecting rod 6, a circle center of the fixed guide ring is located right above a circle center of the circular discharge port 8, an upper end of the guide rod 3 movably penetrates through the fixed guide ring, so that the guide rod 3 moves up and down along the fixed guide ring, thereby preventing the guide rod from swinging in a plane of the cavity 7, improving positioning accuracy of the sealing cover body 5 and the circular discharge port 8, and further improving sealing performance of the sealing cover body 5.

Referring to fig. 1 and 2, the number of the connecting rods 6 may be two or more, preferably, the number of the connecting rods 6 is at least three, each connecting rod 6 is connected between the fixed guide ring and the barrel 4, and all the connecting rods 6 are radially distributed at even intervals, so that the stability of the connection of the fixed guide ring and the barrel 4 is improved.

Referring to fig. 1 and 2, preferably, the upper end of the barrel body 4 is provided with a reinforcing ring 2, and the outer end of the connecting rod 6 is connected with the reinforcing ring 2, so that the structural strength of the barrel body 4 is improved. Wherein, the reinforcing ring 2 can be welded on the outer wall of the barrel body 4.

By adopting the bucket lifting device, the circular discharge hole 8 can be automatically opened and closed by the up-and-down movement of the sealing cover body 5, so that the automatic sealing and automatic discharging functions of the circular discharge hole 8 are realized, the labor intensity of workers is reduced, and the working efficiency is improved.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the utility model and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the utility model and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the utility model be defined by the claims and their equivalents.

Claims (5)

1. A slag-charging bucket device of a circulating fluidized bed boiler is characterized by comprising:

the barrel body is provided with a cavity for containing materials, the lower part of the cavity is provided with a bottom plate, and the bottom plate is provided with a circular discharge hole;

the sealing cover body is in a conical shape with a small upper part and a big lower part, and can move from bottom to top and seal the circular discharge hole; the lower end of the barrel body extends downwards out of the lower end of the bottom plate, and when the circular discharge hole is sealed by the sealing cover body, the bottom surface of the sealing cover body is positioned above the bottom surface of the lower end of the barrel body; and

the guide rod is movably arranged in the cavity, the lower end of the guide rod is connected with the middle of the upper end of the sealing cover body, the upper end of the guide rod extends out of the upper portion of the barrel body, and a hanging ring is arranged at the upper end of the guide rod.

2. The circulating fluidized bed boiler slag loading bucket assembly of claim 1, wherein the bottom plate is conical with a large top and a small bottom, and the center of the circular discharge hole is collinear with the axis of the conical bottom plate.

3. The circulating fluidized bed boiler slag-charging bucket elevator apparatus of claim 1, wherein the top of the cavity is open, and a fixed guide ring is arranged at the top opening of the cavity, the fixed guide ring is fixedly connected with the bucket body through a connecting rod, and the upper end of the guide rod movably penetrates through the fixed guide ring.

4. The circulating fluidized bed boiler slag-charging bucket device of claim 3, wherein the number of the connecting rods is at least three, each connecting rod is connected between the fixed guide ring and the bucket body, and all the connecting rods are uniformly spaced and radially distributed.

5. The slag-charging bucket device of the circulating fluidized bed boiler of claim 3, wherein a reinforcing ring is arranged at the upper end of the bucket body, and the outer end of the connecting rod is connected with the reinforcing ring.

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