Coal ash and slag dredging device

Abstract

The utility model provides a coal ash and slag dredging device, and belongs to the field of manufacturing of coal burning auxiliary equipment. The ash tank comprises an ash tank body, a conical pipe, an ash falling pipe, a piston disc and a transmission rod, the bottom of the conical pipe is a smaller end, and the conical pipe is connected with the ash falling pipe through the smaller end; the top of the conical pipe is communicated with the bottom of the ash tank body; a bracket is arranged in the ash tank body; the transmission rod is provided with a mounting end and a movable end; the transmission rod is vertically mounted in the ash tank body through the mounting end; the movable end is located at the bottom of the transmission rod, and the piston disc is installed on the movable end. And the transmission rod moves downwards, so that the piston disc is embedded in the ash falling pipe. According to the utility model, the transmission rod moves up and down to drive the piston disc to dredge the ash falling pipe, so that coal ash slag is prevented from being accumulated and blocked at the inlet of the ash falling pipe, and the ash falling pipe can be dredged quickly.

Description

Technical Field

[0001] The utility model relates to a manufacturing technology of coal-fired boiler ash processing equipment, in particular to a coal ash slag dredging device, belonging to the technical field of manufacturing auxiliary equipment for coal-fired boilers. Background Art

[0002] Fly ash is generated after coal is burned. These fine ash particles seem to drift with the wind, have loose circulation and are easy to transport. However, in fact, these fly ash and fine powder materials have the same characteristics of easy clogging.

[0003] Fine powder particles are in close contact with each other and are greatly affected by temperature changes. When the temperature drops, the fine powder particles are squeezed by themselves, which makes them easy to agglomerate and stick together, and the fluidity becomes poor. Zhundong coal is easy to stick together because it contains high alkali metal ash components and high moisture content. The fly ash particles generated by Zhundong coal are coarse and fine. After being transported to the ash storage tank, the flow in the tank is uneven, and the residence time is long or short. The fly ash particles are affected by the temperature drop, agglomerate and stick together, and eventually form a blockage.

[0004] The object for storing fly ash particles is usually a tank, which is loaded from the top and discharged from the powder drop pipe. The tank itself is large, and it is loaded and sent out through the powder drop pipe that is conically contracted to a small diameter. The flow of fly ash particles in the tank is uneven, and the flowing ones are often flowing, and the stagnant ones are stagnant. The long-term stagnation squeezes and forms adhesion, thus blocking the powder drop pipe. Utility Model Content

[0005] The utility model provides a new coal ash dredging device, which can quickly dredge an ash falling pipe by driving a piston disc through a transmission rod, so as to solve the technical problem that the ash falling pipe is easily blocked in the prior art.

[0006] The coal ash dredging device of the utility model embodiment comprises: an ash tank body, a conical tube, an ash falling pipe, a piston plate and a transmission rod; the bottom of the conical tube is a smaller end, which is connected to the ash falling pipe through the smaller end; the top of the conical tube is connected to the bottom of the ash tank body;

[0007] A bracket is provided in the ash tank body; the transmission rod has a mounting end and a movable end; the transmission rod is vertically mounted in the ash tank body through the mounting end; the movable end is located at the bottom of the transmission rod, and the piston disc is mounted thereon;

[0008] The transmission rod moves downward so that the piston disc is embedded in the ash falling pipe.

[0009] In the coal ash dredging device as described above, a plurality of cleaning rods are arranged on the top of the piston disc; the bottom of each cleaning rod is fixed on the piston disc, and the top is close to the conical tube.

[0010] In the coal ash dredging device as described above, a plurality of dredging rods are arranged at the bottom of the piston disc, and the plurality of dredging rods are vertically fixed on the piston disc.

[0011] In the coal ash dredging device as described above, a sealing sleeve is fixed on the bracket; the transmission rod is sleeved in the sealing sleeve and can slide up and down in the sealing sleeve.

[0012] In the coal ash dredging device as described above, a plurality of sealing rings are arranged on the sealing sleeve, and the transmission rod is in contact with the sealing sleeve through the plurality of sealing rings.

[0013] In the coal ash dredging device as described above, a circular ring is arranged on the piston disc, and the bottoms of the plurality of cleaning rods are all fixed on the circular ring; and a circular ring bracket is arranged between the circular ring and the piston disc.

[0014] The coal ash dredging device as described above, wherein the transmission rod is a hydraulic transmission rod.

[0015] The coal ash dredging device as described above, wherein a support frame is provided on the outer side of the ash tank body.

[0016] In the embodiment of the utility model, the piston disc is driven to clear the ash falling pipe by the up and down movement of the transmission rod, thereby preventing the coal ash slag from accumulating and clogging at the entrance of the ash falling pipe, and the ash falling pipe can be quickly cleared. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a side structural diagram of the coal ash dredging device according to an embodiment of the utility model. DETAILED DESCRIPTION

[0018] The coal ash dredging device described in the utility model can be made of the following materials and components, but is not limited to the following materials and components, such as: hydraulic cylinder, dredging rod, piston, steel pipe, bracket, sleeve, sealing ring, etc.

[0019] like Figure 1 The figure shows a side structural diagram of the coal ash dredging device of an embodiment of the utility model; the coal ash dredging device of this embodiment includes: an ash tank body 1, a conical tube 11, an ash dropping pipe 12, a piston disc 3 and a transmission rod 2; the bottom of the conical tube 11 is a smaller end, which is connected to the ash dropping pipe 12 through the smaller end; the top of the conical tube 11 is connected to the bottom of the ash tank body 1; the conical tube 11 is used to transfer the ash in the ash tank body 1 to the ash dropping pipe 12.

[0020] A bracket 13 is provided in the ash tank body 1; the transmission rod 2 has a mounting end and a movable end; the transmission rod 2 is vertically installed in the ash tank body 1 through the mounting end; the movable end is located at the bottom of the transmission rod 2, and the piston disc 3 is installed thereon; the transmission rod 2 can move up and down, thereby driving the piston disc 3 to move up and down.

[0021] The transmission rod 2 moves downward so that the piston disc 3 is embedded in the ash falling pipe 12 .

[0022] Generally, the transmission rod 2 is a hydraulic transmission rod.

[0023] In the embodiment of the utility model, the piston disc is driven to clear the ash falling pipe by the up and down movement of the transmission rod, thereby preventing the coal ash slag from accumulating and clogging at the entrance of the ash falling pipe, and the ash falling pipe can be quickly cleared.

[0024] The transmission rod 2 can easily move up and down like a piston in the fly ash tank, quickly solving the blockage of the ash falling pipe, and loosening the bottom of the entire ash tank, providing the necessary loosening effect for the natural circulation of fly ash.

[0025] Preferably, a plurality of cleaning rods 30 are disposed on the top of the piston disc 3 ; the bottom of each cleaning rod 30 is fixed on the piston disc 3 , and the top is close to the tapered tube 11 .

[0026] Furthermore, a plurality of dredging rods 31 are provided at the bottom of the piston disc 3 , and the plurality of dredging rods 31 are vertically fixed on the bottom of the piston disc 3 .

[0027] In this embodiment, the piston disc is located above the ash falling pipe and does not affect the natural flow of fly ash. When the ash falling tank is blocked, the dredging device of this embodiment is activated, the piston disc is pressed downward into the ash falling pipe, and the dredging rod at the bottom of the piston disc is further penetrated, and the fly ash blockage in the ash falling pipe is quickly loosened and circulated. In order to maintain natural circulation after the device is deactivated, oblique cleaning rods are installed on the circumference of the piston disc to loosen the partially compacted ash slag in the conical tube of the tank body, and the transmission rod is used to cut the ash blocks to make it flow naturally. These cleaning rods can loosen the ash blocks without damaging the tank body.

[0028] In the coal ash dredging device of this embodiment, a sealing sleeve 20 is fixed on the bracket 13 ; the transmission rod 2 is sleeved in the sealing sleeve 20 and can slide up and down in the sealing sleeve 20 .

[0029] Generally, in order to prevent ash from entering the sealing sleeve 20 , a plurality of sealing rings 21 are provided on the sealing sleeve 20 , and the transmission rod 2 is in contact with the sealing sleeve 20 through the plurality of sealing rings 21 .

[0030] In order to arrange as many cleaning rods as possible, a circular ring 4 is arranged on the piston disc 3 , and the bottoms of the plurality of cleaning rods 30 are fixed on the circular ring 4 ; a circular ring bracket 40 is arranged between the circular ring 4 and the piston disc 3 .

[0031] Generally, the transmission rod 2 is a hydraulic transmission rod.

[0032] Typically, a support frame 10 is disposed on the outer side of the ash tank body 1 .

[0033] In addition, the coal ash dredging device of the utility model has low manufacturing cost, is small and exquisite, has compact structural design, stable finished product quality, and is easy to maintain and clean. It is suitable for ash discharge systems of various power station boilers, as well as for storage, transportation and transit of mineral powder making systems, cement storage and transit, flour transit, etc.

[0034] The serial numbers of the above-mentioned embodiments of the utility model are only for description and do not represent the advantages and disadvantages of the embodiments. Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of some deformations plus the necessary general technology superposition; of course, it can also be implemented by simplifying some important technical features. Based on this understanding, the technical solution of the utility model is essentially or the part that contributes to the prior art is: the overall structure and connection method, and the structure described in each embodiment of the utility model.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A coal ash dredging device, characterized in that: include: An ash tank body, a conical tube, an ash falling pipe, a piston disc and a transmission rod; the bottom of the conical tube is a smaller end, which is connected to the ash falling pipe through the smaller end; the top of the conical tube is connected to the bottom of the ash tank body; A bracket is arranged inside the ash tank; the transmission rod has a mounting end and a movable end; the transmission rod is vertically mounted inside the ash tank through the mounting end; The movable end is located at the bottom of the transmission rod, and the piston disc is mounted on it; The transmission rod moves downward so that the piston disc is embedded in the ash falling pipe.

2. The coal ash dredging device according to claim 1, characterized in that: A plurality of cleaning rods are arranged on the top of the piston disc; the bottom of each cleaning rod is fixed on the piston disc, and the top is close to the conical tube.

3. The coal ash dredging device according to claim 2, characterized in that: A plurality of dredging rods are arranged at the bottom of the piston disc, and the plurality of dredging rods are vertically fixed on the piston disc.

4. The coal ash dredging device according to any one of claims 1 to 3, characterized in that: A sealing sleeve is fixed on the bracket; the transmission rod is sleeved in the sealing sleeve and can slide up and down in the sealing sleeve.

5. The coal ash dredging device according to claim 4, characterized in that: The sealing sleeve is provided with a plurality of sealing rings, and the transmission rod is in contact with the sealing sleeve through the plurality of sealing rings.

6. The coal ash dredging device according to any one of claims 2-3, characterized in that: A circular ring is arranged on the piston disc, and the bottoms of the plurality of cleaning rods are fixed on the circular ring; a circular ring bracket is arranged between the circular ring and the piston disc.

7. The coal ash dredging device according to any one of claims 1 to 3, characterized in that: The transmission rod is a hydraulic transmission rod.

8. The coal ash dredging device according to any one of claims 1 to 3, characterized in that: A support frame is arranged on the outer side of the ash tank body.

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