Flue fly ash cleaning device of biomass power generation incinerator

Abstract

The utility model belongs to the field of flue cleaning, and particularly discloses a flue fly ash cleaning device of a biomass power generation incinerator, which comprises an ash hole and a collecting component, the collecting component comprises a collecting barrel detachably connected to the ash hole, and a mounting hole is formed in the middle of the lower end of the collecting barrel; the cleaning assembly comprises a telescopic shaft, a scraping ring and a connecting rod, the scraping ring and the telescopic shaft are coaxially arranged, the scraping ring is located on the outer side of the telescopic shaft, the connecting rod is connected between the telescopic shaft and the scraping ring, the telescopic shaft comprises a fixed part detachably connected to the bottom of the collecting barrel and a sliding part slidably connected into the fixed part, and the fixed part and the sliding part are both cylindrical; the free end of the sliding part is closed; the cleaning assembly further comprises a driving rod in threaded connection with the interior of the mounting hole, and the driving rod is used for pushing the sliding part to slide. By adopting the scheme of the utility model, the problem that fly ash is difficult to blow out upwards in the uptake flue can be solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the flue cleaning field, concretely relates to the flue fly ash cleaning device of the biomass power generation incinerator. BACKGROUND

[0002] Biomass power generation refers to the power generation using the biomass energy of biomass, and is one of renewable energy power generations, wherein, direct combustion power generation refers to the direct combustion of biomass in a boiler to generate steam to drive a steam turbine and a generator to generate electricity, and the key technologies include biomass raw material pretreatment, boiler corrosion prevention, boiler raw material applicability and fuel efficiency, steam turbine efficiency, etc. In the power generation process, a large amount of waste gas generated by biomass combustion enters the flue, and fly ash in the flue gas gradually deposits in the flue, so that the flue passing efficiency gradually decreases, and therefore, the fly ash in the flue needs to be cleaned out.

[0003] In the prior art, a scraper is usually arranged in the flue to scrape the fly ash on the inner wall of the flue, and a fan is arranged to blow the scraped fly ash out of the bag-type dust collector. In the transverse flue, the fan can conveniently blow the fly ash in one direction, but it is difficult to blow the fly ash upward in the rising flue, and the falling fly ash is easy to adhere to the blades of the fan. After a long time of use, the fan cannot be cleaned in the flue, and the flue still needs to be removed for treatment. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model provides a flue fly ash cleaning device of a biomass power generation incinerator to solve the problem that it is difficult to blow the fly ash upward in the rising flue, the falling fly ash is easy to adhere to the blades of the fan, and the fan cannot be cleaned in the flue after a long time of use, and the flue still needs to be removed for treatment.

[0005] According to the embodiment of the utility model, the following technical scheme is adopted:

[0006] The flue fly ash cleaning device of the biomass power generation incinerator comprises an ash hole arranged at the bottom of the flue, a collecting assembly arranged at the ash hole, and a cleaning assembly for cleaning the fly ash in the flue. The collecting assembly comprises a collecting barrel which is detachably connected to the ash hole. An installation hole is arranged in the middle of the lower end of the collecting barrel. An installation plate for closing the installation hole is detachably connected in the installation hole. The cleaning assembly comprises an extension shaft, a scraping ring coaxially arranged with the extension shaft and located outside the extension shaft, and a connecting rod connected between the extension shaft and the scraping ring. The extension shaft comprises a fixed part which is detachably connected to the bottom of the collecting barrel, and a sliding part which is slidingly connected in the fixed part. Both the fixed part and the sliding part are in a cylindrical shape, and the free end of the sliding part is closed. The cleaning assembly further comprises a driving rod which is screw-connected in the installation hole, and the driving rod is used to push the sliding part to slide.

[0007] Compared with the prior art, the utility model has the beneficial effects that:

[0008] In the scheme, through regularly disassembling the collecting barrel, fly ash falling in the collecting barrel is treated, then the mounting plate can be disassembled, the cleaning assembly is installed, the cleaning assembly enters the rising flue, through rotating the driving rod, the driving rod gradually enters the rising flue, and the telescopic shaft is driven to elongate, the scraping ring is driven to extend into the rising flue and scrape fly ash on the inner wall of the flue, and the scraped fly ash falls into the collecting barrel, and the fly ash in the collecting barrel can be treated when the cleaning assembly is disassembled.

[0009] In the scheme, the cleaning assembly can be disassembled and arranged in the collecting barrel, and the flue can be maintained in use when the cleaning assembly is installed and treated when needed, the telescopic shaft can meet the cleaning of flues of different heights, and the separately arranged cleaning assembly is convenient to clean or repair and replace.

[0010] Further, the end of the driving rod is detachably connected with a supporting block, and a plurality of rolling balls are rotatably connected to the surface of the supporting block.

[0011] Further, a connecting rope is arranged between the mounting plate and the bottom of the collecting barrel.

[0012] Further, the driving rod comprises a plurality of connecting segments which are detachably connected together.

[0013] Further, a first clamping groove is formed at one end of the connecting segment, and a clamping block for clamping into the clamping groove is arranged at the other end of the connecting segment.

[0014] Further, the length of the clamping block is greater than or equal to the depth of the mounting hole.

[0015] Further, a handle is clamped in the first clamping groove.

[0016] Further, a second clamping groove for connecting with the driving rod is formed at the end of the supporting block. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the structure not equipped with the cleaning assembly in the embodiment of the utility model.

[0018] Figure 2 It is a structural schematic view of one design mode of the driving rod in the embodiment of the utility model.

[0019] Figure 3 It is a structural schematic view of another design mode of the driving rod in the embodiment of the utility model.

[0020] In the figure: 1, flue; 2, ash hole; 3, collection bucket; 4, mounting plate; 5, connecting rope; 6, fixed part; 7, sliding part; 8, telescopic shaft; 9, scraping ring; 10, connecting rod; 11, supporting block; 12, ball; 13, connecting section; 14, clamping block; 15, handle. DETAILED DESCRIPTION

[0021] The utility model will be made further detailed explanation below combining with the utility model attached drawing, and give specific embodiment.

[0022] As Figure 1 , Figure 2 shown, the biomass power generation incinerator flue fly ash cleaning device, including opening in the flue 1 bottom ash hole 2, install at ash hole 2 place's collection subassembly and be used for cleaning the fly ash of flue 1 inside cleaning subassembly, collection subassembly includes the collection bucket 3 of detachable connection at ash hole 2, collection bucket 3 lower end middle part is equipped with mounting hole, detachable connection has the mounting plate 4 for closing mounting hole in mounting hole. Specifically, the first mounting ring is fixed on the upper end of the collection bucket 3, the first mounting ring abuts against the bottom of the flue 1 and is bolted, the inner wall of the mounting hole is provided with internal threads, and the mounting plate 4 is screwed in the mounting hole. In order to facilitate the storage of the mounting plate 4 after being removed from the mounting hole, a connecting rope 5 is provided between the mounting plate 4 and the bottom of the collection bucket 3 to prevent the mounting plate 4 from being lost.

[0023] The cleaning assembly includes a telescopic shaft 8, a scraping ring 9 coaxially arranged with the telescopic shaft 8 and located outside the telescopic shaft 8, and a connecting rod 10 connected between the telescopic shaft 8 and the scraping ring 9. The telescopic shaft 8 includes a fixed part 6 detachably connected to the bottom of the collection bucket 3 and a sliding part 7 slidingly connected in the fixed part 6. Both the fixed part 6 and the sliding part 7 are cylindrical, and the free end of the sliding part 7 is closed. The second mounting ring is fixed to the lower end of the fixed part 6, and the second mounting ring abuts against the bottom of the collection bucket 3 and is bolted. According to the actual situation, multiple sliding parts 7 can be provided and connected in sequence. For example, two groups of sliding parts 7 are provided and named as first sliding part and second sliding part. The first sliding part is slidingly connected to the fixed part, and the second sliding part is slidingly connected to the first sliding part. The free end of the second sliding part is closed. This design can make the telescopic shaft 8 have a larger telescopic range.

[0024] The cleaning assembly further comprises a driving rod threadedly connected in the mounting hole, the driving rod being used to push the sliding part 7 to slide, specifically, an end of the driving rod is detachably connected with a supporting block 11, a plurality of rolling balls 12 are rotatably connected on the surface of the supporting block 11, the end of the supporting block 11 is provided with a second clamping groove for connecting with the driving rod, and a clamping block 14 for clamping into the second clamping groove is fixed on the end of the driving rod, the driving rod and the supporting block 11 are assembled by clamping, and the supporting block 11 can rotate relative to the sliding part 7 due to the design of the rolling balls 12, the rolling balls 12 are only attached to the sliding part 7 and can rotate relative to the sliding part 7, and there is no other connection relationship, so that the driving rod can push the sliding part 7 upward, and the sliding part 7 can slide downward under the action of its own gravity when the driving rod moves downward.

[0025] In daily use, the cleaning assembly is not installed, the mounting hole is closed by the mounting plate 4, the fly ash falling into the collecting barrel 3 can be regularly removed and disposed by disassembling and removing the collecting barrel 3.

[0026] By rotating the driving rod, the driving rod gradually enters the rising flue 1, the telescopic shaft 8 is driven to elongate, the scraping ring 9 is driven to extend into the rising flue 1 and scrape the fly ash on the inner wall of the flue 1, the scraped fly ash falls into the collecting barrel 3, the driving rod can be rotated forward and backward for multiple times, the scraping ring 9 can reciprocate in the flue 1, and the fly ash scraping effect is better.

[0027] In another embodiment of the utility model, in combination with Figure 2 As shown in the figure, when the space below the flue 1 is insufficient for installing the driving rod, and the length of the driving rod is designed to be short and cannot meet the cleaning requirement of the flue 1, a design mode is given in the embodiment, the driving rod comprises a plurality of groups of connecting segments 13 which are detachably connected together, specifically, the connecting segment 13 is provided with a first clamping groove at one end, the other end of the connecting segment 13 is provided with a clamping block 14 for inserting into the first clamping groove, the plurality of groups of connecting segments 13 are sequentially clamped, and the next group of connecting segments 13 is connected when one group of connecting segments 13 is about to completely enter the flue 1, so that the cleaning requirement of the flue 1 with a higher height is met. In the embodiment, the design structure of the first clamping groove and the second clamping groove is consistent, so that the clamping block 14 can be clamped into the first clamping groove or the second clamping groove. A handle 15 is clamped in the first clamping groove, and the handle 15 is convenient for rotating the connecting segment 13.

[0028] In another embodiment of the utility model, in combination with Figure 3When the space below the flue 1 is not enough for the installation of the driving rod, and the length of the driving rod is designed to be short and cannot meet the cleaning requirements of the flue 1, another design is given in the embodiment, in which the length of the clamping block 14 is greater than or equal to the depth of the installation hole. In this way, when one group of connecting segments 13 is about to completely enter the flue 1, the next group of connecting segments 13 is connected, and when the clamping block 14 moves to the installation hole, the two groups of connecting segments 13 are not connected with the installation hole. At this time, the worker needs to push the clamping block 14 upwards until the next group of connecting segments 13 can be screwed into the installation hole. Compared with the above embodiment, although the worker needs to push the clamping block 14 in this embodiment, the precision of the thread processing on the connecting segments 13 is reduced, avoiding the fact that the threads on the two groups of connecting segments 13 cannot be well transitioned, resulting in that the next group of connecting segments 13 cannot be screwed into the installation hole.

[0029] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A fly ash cleaning device for a biomass power generation incinerator, characterized by: The application relates to a fly ash collecting and cleaning device for a flue, which comprises a fly ash hole arranged in the bottom of the flue, a collecting assembly arranged at the fly ash hole, and a cleaning assembly for cleaning fly ash in the flue.

2. The fly ash cleaning device of a biomass power generation incinerator according to claim 1, characterized by: The end of the driving rod is detachably connected with a supporting block, and the surface of the supporting block is rotatably connected with a plurality of rolling balls.

3. The fly ash cleaning device of a biomass power generation incinerator according to claim 1, characterized by: A connecting rope is arranged between the mounting plate and the bottom of the collecting barrel.

4. The fly ash cleaning device of a biomass power generation incinerator according to claim 1, characterized by: The driving rod comprises a plurality of connecting sections which are detachably connected together.

5. The fly ash cleaning device of a biomass power generation incinerator according to claim 4, characterized by: One end of the connecting section is provided with a first clamping groove, and the other end of the connecting section is provided with a clamping block used for clamping into the clamping groove.

6. The fly ash cleaning device of a biomass power generation incinerator according to claim 5, characterized by: The length of the clamping block is greater than or equal to the depth of the mounting hole.

7. The fly ash cleaning device of a biomass power generation incinerator according to claim 5, characterized by: A handle is clamped into the first clamping groove.

8. The fly ash cleaning device of a biomass power generation incinerator according to claim 2, characterized by: The end of the supporting block is provided with a second clamping groove used for connecting with the driving rod.

Images