CN220466373U - Anti-blocking coal bucket for thermal power plant - Google Patents

Abstract

The utility model discloses an anti-blocking coal bucket of a thermal power plant, which comprises a large coal bucket and a small coal bucket, wherein the large coal bucket is arranged right above the small coal bucket, the upper end of the large coal bucket is provided with a first feeding hole, the lower end of the large coal bucket is provided with a first discharging hole, the upper end of the small coal bucket is provided with a second feeding hole, the lower end of the small coal bucket is provided with a second discharging hole, the first discharging hole and the second discharging hole are rectangular, the large coal bucket and the small coal bucket are arranged in a rotary dislocation mode, and the first discharging hole and the second discharging hole are arranged in a rotary dislocation mode. The utility model aims to solve the technical problems in the prior art and provides an anti-blocking coal bucket for a thermal power plant, which solves the problem of coal bin blocking by adjusting the structural form of the coal bucket and utilizing the staggered arrangement of the coal bucket with the upper and lower sizes.

Description

Anti-blocking coal bucket for thermal power plant

Technical Field

The utility model relates to the technical field of coal hoppers of thermal power plants, in particular to an anti-blocking coal hopper of a thermal power plant.

Background

The heat and power cogeneration is a high-efficiency energy production mode for joint production of heat energy and electric energy, the main fuel of a boiler of a thermal power plant is coal, stable supply of the coal is crucial in order to ensure stable and normal operation of the boiler, the thermal power plant is often provided with a two-way belt conveying system and 2-3 weighing coal feeders to ensure stable supply of the coal, but only one stokehold coal bin is arranged in front of the boiler, if coal blockage occurs, normal operation of the boiler is influenced, even the condition of stopping the boiler is caused, and huge economic loss is caused.

In the prior coal bunker anti-blocking technology, the sliding-assisting materials such as a polyethylene wrench are added in the coal bunker, or arch breaking devices such as an air cannon are arranged, but the effect is very poor.

Disclosure of Invention

1. Technical problem to be solved by the utility model

The utility model aims to solve the technical problems in the prior art and provides an anti-blocking coal bucket for a thermal power plant, which solves the problem of coal bin blocking by adjusting the structural form of the coal bucket and utilizing the staggered arrangement of the coal bucket with the upper and lower sizes.

2. Technical proposal

In order to solve the problems, the technical scheme provided by the utility model is as follows:

the utility model provides a thermal power plant prevents stifled coal scuttle, includes big coal scuttle and little coal scuttle, big coal scuttle is located directly over the little coal scuttle, the upper end of big coal scuttle has first feed inlet, the lower extreme of big coal scuttle has first discharge gate, the upper end of little coal scuttle has the second feed inlet, the lower extreme of little coal scuttle has the second discharge gate, first discharge gate with the second discharge gate all is the rectangle, big coal scuttle with little coal scuttle rotation dislocation set, and make first discharge gate with second discharge gate rotation dislocation arrangement.

Optionally, the height of the small coal bucket is 2.5m and above.

Optionally, an anti-blocking structure is arranged in the small coal bucket.

Optionally, the anti-blocking structure comprises at least one sliding plate which is connected to the inner wall of the small coal bucket in a sliding way, and a control structure for controlling the sliding of the sliding plate.

Optionally, the control structure is a hydraulic control structure.

Optionally, a weighing coal feeder is arranged below the small coal hopper.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:

the anti-blocking coal bucket of the thermal power plant can solve the problem of blocking materials of the coal bunker through lower cost, and simultaneously reduces the manufacturing cost of the coal bunker and the cost of the anti-blocking device.

Drawings

Fig. 1 is a schematic structural diagram of an anti-blocking coal bucket of a thermal power plant according to an embodiment of the present utility model;

fig. 2 is a schematic diagram of rotation dislocation of large and small coal hoppers in an anti-blocking coal hopper of a thermal power plant according to an embodiment of the utility model;

1. a large coal bucket; 2. a small coal bucket; 3. a first feed port; 4. a first discharge port; 5. a second feed inlet; 6. a second discharge port; 7. a slide plate; 8. weighing type coal feeder.

Detailed Description

The present utility model will be further described in detail with reference to the drawings and the detailed description, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the detailed description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted," "positioned," "secured" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, when one element is considered as being "fixedly connected" to another element, the two elements may be fixed by a detachable connection manner, or may be fixed by a non-detachable connection manner, such as sleeving, clamping, integrally forming, or welding, which may be implemented in the prior art, and thus, the description is not further omitted. When an element is perpendicular or nearly perpendicular to another element, it is meant that the ideal conditions for both are perpendicular, but certain vertical errors may exist due to manufacturing and assembly effects. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The terms "first" and "second" as used herein do not denote a particular quantity or order, but rather are used to distinguish one element from another.

Referring to fig. 1 and 2, an anti-blocking coal bucket of a thermal power plant in this embodiment includes a big coal bucket 1 and a small coal bucket 2, the cross section of the big coal bucket 1 and the small coal bucket 2 is rectangular, the big coal bucket 1 is arranged right above the small coal bucket 2, the big coal bucket 1 and the small coal bucket 2 are arranged in a rotating and dislocation mode, the upper end of the big coal bucket 1 is provided with a first feed inlet 3, the lower end of the big coal bucket 1 is provided with a first discharge outlet 4, the upper end of the small coal bucket 2 is provided with a second feed inlet 5, the lower end of the small coal bucket 2 is provided with a second discharge outlet 6, the lower end of the big coal bucket 1 extends into the small coal bucket 2 through the second feed inlet 5 and is positioned at the upper end of the small coal bucket 2, the first discharge outlet 4 and the second discharge outlet 6 are both rectangular and are arranged in a rotating and dislocation mode, and the rotating dislocation mode means that the first discharge outlet 4 and the second discharge outlet 6 are not parallel to each other as shown in fig. 2.

The anti-blocking coal hopper of the thermal power plant increases the outlet aperture of the large coal hopper 1 by arranging the upper coal hopper and the lower coal hopper, and solves the problem of arch formation and blocking of the internal combustion coal in the large coal hopper 1 by adopting the rotary dislocation arrangement of the large coal hopper and the small coal hopper 2, so that raw coal can be smoothly discharged into the small coal hopper 2; the fire coal in the small coal hopper 2 is greatly lightened after being arranged in a rotary dislocation way due to the height pressure of the fire coal bin.

As an alternative of the present utility model, the height of the small coal bucket 2 is 2.5m or more, preferably about 3m, so that the caliber of the first discharge port 4 of the large coal bucket 1 can be made larger.

As an alternative scheme of the utility model, in order to better relieve the coal blockage situation of the coal hopper in the small coal hopper 2, an anti-blocking structure is arranged in the small coal hopper 2; meanwhile, the small coal bucket 2 has small capacity and low height pressure of fire coal, so that the cost of the hydraulic anti-blocking device can be greatly reduced.

As an alternative of the present utility model, the anti-blocking structure includes at least one sliding plate 7 slidably connected to the inner wall of the small coal bucket 2, the sliding direction of the sliding plate 7 in the small coal bucket 2 may be up and down, may be left and right, may also be up and down, and may also be left and right, and the sliding plate 7 is connected to the inner wall of the small coal bucket 2 by a sliding rail or a guiding strip, and the sliding action of the sliding plate 7 is controlled by a control mechanism.

As an alternative of the present utility model, two or more sliding plates 7 are symmetrically disposed in the small coal bucket 2.

As an alternative scheme of the utility model, in order to more stably push the sliding plate 7 to slide in the small coal bucket 2, the control structure is a hydraulic control structure, and the hydraulic control structure consists of 5 parts, namely a hydraulic pump, a hydraulic cylinder, a control adjusting element, other auxiliary elements (an oil tank, an oil pipe, a pressure gauge, a flowmeter and the like) and hydraulic oil, wherein the hydraulic cylinder is connected with the sliding plate; in other embodiments, the control structure may also be an electrically controlled structure.

As an alternative scheme of the utility model, a weighing type coal feeder 8 is arranged below the small coal hopper 2, and the weighing type coal feeder 8 weighs the fire coal and then feeds the fire coal into the boiler for burning.

The utility model and its embodiments have been described above by way of illustration and not limitation, and the utility model is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present utility model.

Claims (6)

1. The utility model provides a coal scuttle is prevented to steam power plant which characterized in that: including big coal scuttle and little coal scuttle, big coal scuttle is located directly over the little coal scuttle, the upper end of big coal scuttle has first feed inlet, the lower extreme of big coal scuttle has first discharge gate, the upper end of little coal scuttle has the second feed inlet, the lower extreme of little coal scuttle has the second discharge gate, first discharge gate with the second discharge gate all is the rectangle, big coal scuttle with little coal scuttle rotation dislocation set, and make first discharge gate with the rotatory dislocation arrangement of second discharge gate.

2. The anti-blocking coal bucket of the thermal power plant according to claim 1, wherein: the height of the small coal hopper is 2.5m or more.

3. The anti-blocking coal bucket of the thermal power plant according to claim 1, wherein: an anti-blocking structure is arranged in the small coal bucket.

4. A thermal power plant anti-clogging coal bucket as defined in claim 3, wherein: the anti-blocking structure comprises at least one sliding plate which is connected to the inner wall of the small coal bucket in a sliding way, and a control structure for controlling the sliding of the sliding plate.

5. The anti-blocking coal bucket for a thermal power plant according to claim 4, wherein: the control structure is a hydraulic control structure.

6. The anti-blocking coal bucket of the thermal power plant according to any one of claims 1-5, wherein: and a weighing coal feeder is arranged below the small coal hopper.