CN215754290U

CN215754290U - Stokehole coal bunker

Info

Publication number: CN215754290U
Application number: CN202121353169.7U
Authority: CN
Inventors: 李永亮; 吕磊; 贾国恒; 石珍珍; 陈晓波; 杨仲轩
Original assignee: China Huaye Group Co Ltd
Current assignee: Tianjin Huaye Engineering Design Co ltd; China Huaye Group Co Ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2022-02-08
Anticipated expiration: 2031-06-17

Abstract

The utility model relates to the technical field of coal storage equipment, and discloses a stokehole coal bunker, wherein at least three blockage removing devices are arranged on the side wall of a bunker body; the blockage removing device comprises: the bracket is fixedly arranged on the side wall of the bin body; the driving motor is arranged on the bracket; the blockage removing impeller is arranged in the bin body, the blockage removing impeller is sleeved at one end of a transmission shaft, and the other end of the transmission shaft is connected with the driving motor; the vertical distances between the extension lines of the three transmission shafts along the length direction of the three transmission shafts and the middle lines of the bin body are the same, and the distances are not less than 1/2 of the caliber of the coal outlet of the bin body. When the coal blockage phenomenon occurs in the stokehole coal bunker, the blockage removing device is opened, so that the accumulated coal can be effectively loosened, and the problem of coal blockage is solved.

Description

Stokehole coal bunker

Technical Field

The utility model relates to the technical field of coal storage equipment, in particular to a stokehole coal bunker.

Background

The coal supply side of the coal-fired boiler is provided with a stokehole coal bunker, and coal is continuously conveyed to the boiler through the stokehole coal bunker. The coal storage amount of the stokehole coal bunker is usually 10-12h of coal burning amount of the boiler, the coal storage amount is large, and the pressure at the bottom of the stokehole coal bunker is high. When the backlog angle of the coal in the stokehole coal bunker is abnormal or the humidity of the coal is high, the coal blockage phenomenon is easy to occur, and the blockage phenomenon is not easy to dredge, so that the coal-fired boiler cannot stably run.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems and provide a stokehole coal bunker, which can be used for removing blockage by using a blockage removing device arranged on the stokehole coal bunker when the coal bunker is blocked.

In order to achieve the aim, the utility model provides a stokehole coal bunker, wherein at least three blocking devices are arranged on the side wall of a bunker body; the blockage removing device comprises: the bracket is fixedly arranged on the side wall of the bin body; the driving motor is arranged on the bracket; the blockage removing impeller is arranged in the bin body, the blockage removing impeller is sleeved at one end of a transmission shaft, and the other end of the transmission shaft is connected with the driving motor; the vertical distance between the extension line of the transmission shaft along the length direction and the middle line of the bin body is not less than 1/2 of the caliber of the coal outlet of the bin body.

Preferably, the blockage removing device further comprises a driving mechanism arranged on the support and used for driving the blockage removing impeller to reciprocate along the length direction of the transmission shaft.

Preferably, the vertical distance between the blockage removing device and the coal outlet is not less than 1 meter.

Preferably, the three blockage removing devices are arranged on the same horizontal plane of the bin body.

Preferably, the three blockage removing devices are spirally arranged on the side wall of the bin body.

Further preferably, the lower part of the bin body is in an inverted conical shape, and the three blockage removing devices are arranged on a conical spiral line along the outer surface of the bin body.

According to the above description and practice, the furnace front coal bunker of the utility model is provided with three blockage removal devices on the side wall of the bunker body, and the vertical distance between the extension lines of the transmission shafts of the three blockage removal devices along the length direction and the middle line of the bunker body is not less than 1/2 of the caliber of the coal outlet of the bunker body. When the coal blockage phenomenon occurs in the bin body, the blockage removing device is opened, so that the accumulated coal can be effectively loosened, and the problem of coal blockage is solved. In addition, a driving mechanism for driving the blockage removing impeller to reciprocate along the length direction of the transmission shaft is further arranged in the blockage removing device, so that the capability of loosening accumulated coal of the blockage removing device is improved, and the problem of coal blockage can be solved in time.

Drawings

Fig. 1 is a schematic sectional view of a stokehole coal bunker according to an embodiment of the present invention.

Fig. 2 is a plan view of a block removing device according to an embodiment of the present invention.

The reference numbers in the figures are:

1. bin body 2, block removing device 3 and coal outlet

4. Support 5, driving motor 6, arrange stifled impeller

7. A drive shaft.

Detailed Description

Exemplary embodiments will now be described more fully with reference to the accompanying drawings. The exemplary embodiments, however, may be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. In the present disclosure, the terms "include", "arrange", "disposed" and "disposed" are used to mean open-ended inclusion, and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first," "second," and the like are used merely as labels, and are not limiting as to the number or order of their objects; the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the utility model and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the utility model.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 and 2, the stokehole coal bunker in this embodiment includes a bunker body 1 and three blocking-removing devices 2 disposed along a side wall of the bunker body 1. Wherein the upper part of the bin body 1 is cylindrical, the lower part is conical, and the bottom end is provided with a coal outlet 3.

The blockage removing device 2 comprises a support 4, a driving motor 5 and a blockage removing impeller 6. Wherein, the one end of support 4 is fixed to be set up on the lateral wall of storehouse body 1, and the other end of support 4 is then fixed to be set up on fixed surfaces such as wall body or ground for provide a supporting platform for driving motor 5. The blockage removing impeller 6 is arranged in the bin body 1, and the center of the blockage removing impeller is sleeved on the transmission shaft 7 and synchronously rotates along with the transmission shaft 7. One end of the transmission shaft 7 far away from the blockage removing impeller 6 is connected with the driving motor 5. A reduction device, such as a gearbox, is preferably also provided between the drive motor 5 and the drive shaft 7, so that the plugging removal impeller 6 can be driven to rotate at different rotational speeds.

It should be noted that the transmission shafts 7 of the three blockage removing devices 2 are not directed towards the center line of the bin body 1, but are arranged to deviate from the center line. Specifically, the vertical distance between the extension lines of the three transmission shafts 7 along the length direction and the middle line of the bin body 1 is not less than 1/2 of the caliber of the coal outlet 3. As shown in fig. 2, in this embodiment, the perpendicular distances between the extension lines of the three transmission shafts 7 in the length direction thereof and the middle line of the cabin 1 are a, b, and c, respectively, and a ═ b ═ c. By adopting the structure, the three blockage removing devices 2 do not point to the same point, and accumulated coal in the bin body 1 is easier to dredge when the blockage removing impeller 6 rotates.

In one embodiment, the block removing device 2 further comprises a driving mechanism arranged on the bracket 4, wherein the driving mechanism consists of a power source and a reciprocating intermittent motion mechanism, and the reciprocating intermittent motion mechanism is set to reciprocate along the length direction of the transmission shaft 7 under the driving of the power source. The reciprocating intermittent motion mechanism can be any one of a ratchet mechanism, a sheave mechanism, a link mechanism or an incomplete gear mechanism. And a driving motor 5 and a transmission shaft 7 in the blockage removing device 2 are arranged on the reciprocating intermittent motion mechanism, so that the blockage removing impeller 6 is driven to reciprocate along the length direction of the transmission shaft 7. When the coal blockage phenomenon occurs in the bin body 1, the blockage removing device 2 is opened, the blockage removing impeller 6 moves back and forth along the length direction of the transmission shaft 7 while rotating, and the blocked coal can be loosened, so that the coal can smoothly fall out from the coal outlet 3.

In addition, the three blockage removing devices 2 are arranged on the same horizontal plane of the bin body 1 in the embodiment, and the function of removing the accumulated coal is realized by disturbing the coal near the horizontal plane.

In another embodiment, three blockage removing devices 2 are spirally arranged on the side wall of the bin body 1, and under the structure, the blockage removing devices 2 can disturb coal beds with different heights, and the blockage removing can be quickly realized by combining the rotation of the blockage removing impeller 6. In the case of an inverted conical lower portion of the silo 1, the three drainage devices 2 are preferably arranged on a conical helix along the surface of the silo 1.

In addition, as the caliber of the coal outlet 3 is usually much smaller than the inner diameter of the bin body 1, when the vertical distance between the blockage removing device 2 and the coal outlet 3 is smaller, the blockage removing effect of the blockage removing device 2 is affected. Therefore, when the blockage removing device 2 is arranged, the vertical distance between the blockage removing device 2 and the coal outlet 3 is not less than 1 meter.

In the above embodiment, three blockage removing devices 2 are provided, and the number of the blockage removing devices 2 can be increased according to the actual size of the bin body 1, so as to achieve the best blockage removing effect.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A stokehole coal bunker, which is characterized in that,

at least three blockage removing devices are arranged on the side wall of the bin body;

the blockage removing device comprises: the bracket is fixedly arranged on the side wall of the bin body; the driving motor is arranged on the bracket; the blockage removing impeller is arranged in the bin body, the blockage removing impeller is sleeved at one end of a transmission shaft, and the other end of the transmission shaft is connected with the driving motor;

the vertical distance between the extension line of the transmission shaft along the length direction and the middle line of the bin body is not less than 1/2 of the caliber of the coal outlet of the bin body.

2. The stokehole coal bunker of claim 1,

the blockage removing device also comprises a driving mechanism which is arranged on the support and drives the blockage removing impeller to reciprocate along the length direction of the transmission shaft.

3. The stokehole coal bunker of claim 1,

the vertical distance between the blockage removing device and the coal outlet is not less than 1 meter.

4. The stokehole coal bunker of claim 1,

the three blockage removing devices are arranged on the same horizontal plane of the bin body.

5. The stokehole coal bunker of claim 1,

the three blockage removing devices are spirally arranged on the side wall of the bin body.

6. The stokehole coal bunker of claim 5,

the lower part of the bin body is in an inverted conical shape, and the three blockage removing devices are arranged on a conical spiral line along the outer surface of the bin body.