Sundry cleaning device for return stroke working face of coal conveying belt of coal-fired thermal power plant

Abstract

The invention relates to the field of coal conveying belt cleaning equipment, in particular to a coal-fired thermal power plant coal conveying belt return stroke working face sundry cleaning device which comprises a cleaning mechanism which comprises a cleaning pipe assembly, a first filtering assembly arranged in the cleaning pipe assembly and a second filtering assembly arranged below the first filtering assembly. The position adjusting mechanism comprises a first position adjusting assembly arranged below the first filtering assembly and a second position adjusting assembly arranged below the second filtering assembly. And through mutual cooperation of the sweeping mechanism and the position adjusting mechanism, the cleaned waste can be classified, and the cleaning process can be adjusted according to the coal condition.

Description

Technical Field

[0001] This invention relates to the field of coal conveyor belt cleaning equipment, and in particular to a debris cleaning device for the return working face of a coal conveyor belt in a coal-fired power plant. Background Technology

[0002] In existing coal conveyor belt cleaning equipment, the existing scraper sweeper can clean large pieces of coal adhering to the belt surface, but some dust still remains on the belt surface, which will cause secondary dust pollution during the production process as the belt moves. Using electric sweeping rollers can remove most of the adhering dust, but because it works in an open area, it will still cause dust to spill out, which cannot effectively solve the problem of cleaning coal dust without causing dust to spill out.

[0003] Meanwhile, during coal conveyor belt transport, the surface not only picks up coal dust but also has a significant probability of picking up coal lumps. When using existing scraper sweepers and electric cleaning rollers to clean the conveyor belt, coal lumps can sometimes jam these devices, causing equipment malfunctions. The pressure exerted by the scraper sweepers and electric cleaning rollers on the coal lumps can also damage the surface of the conveyor belt, reducing its lifespan. Existing washing and cleaning equipment cannot classify the waste after cleaning the conveyor belt, and large particles in the slurry after cleaning can clog the machine. Furthermore, existing equipment cannot adjust the washing and cleaning process according to the coal composition. Summary of the Invention

[0004] In view of the problems existing in the above or prior art, the present invention is proposed.

[0005] Therefore, the purpose of this invention is to provide a debris cleaning device for the return working face of a coal conveyor belt in a coal-fired power plant, which can solve the problems of existing coal conveyor belt cleaning equipment that cannot classify and process the cleaned waste and cannot adjust the cleaning process according to the coal conditions.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a debris cleaning device for the return working face of a coal conveyor belt in a coal-fired power plant, comprising a cleaning mechanism, which includes a cleaning pipe assembly, a first filter assembly disposed in the cleaning pipe assembly, and a second filter assembly disposed below the first filter assembly; and an adjustment mechanism, which includes a first adjustment assembly disposed below the first filter assembly and a second adjustment assembly disposed below the second filter assembly.

[0007] As a preferred embodiment of the debris cleaning device for the return working face of the coal conveyor belt in the coal-fired power plant described in this invention, the cleaning pipe assembly includes a cleaning pipe section, a collection pipe section connected and fixed to the lower part of the cleaning pipe section, and a discharge pipe section connected and fixed to the lower part of the collection pipe section; a discharge port is provided on the side wall of the collection pipe section, and a baffle covering the discharge port is hinged to the outer wall of the collection pipe section.

[0008] As a preferred embodiment of the debris cleaning device for the return working face of the coal conveyor belt in the coal-fired power plant described in this invention, the first filter assembly includes a telescopic plate hinged at the connection between the cleaning pipe section and the collecting pipe section, and a first filter plate slidably disposed in the telescopic plate, wherein the first filter plate has a first filter hole; a handle is hinged to the lower surface of the first filter plate, the handle including a connecting rod, and a first gripping rod and a second gripping rod fixed to the side wall of the connecting rod.

[0009] As a preferred embodiment of the debris cleaning device for the return working face of the coal conveyor belt in the coal-fired power plant described in this invention, the second filter assembly includes a second filter plate hinged to the inner wall of the sewage collection pipe section and located below the first filter plate. The second filter plate has a second filter hole, which is smaller than the first filter hole. The top edge of the second filter plate facing the sewage outlet is rounded.

[0010] As a preferred embodiment of the debris cleaning device for the return working face of the coal conveyor belt in the coal-fired power plant described in this invention, the first adjustment component includes a slide rail fixed to the inner wall of the sewage collection pipe section and located below the telescopic plate, a support member slidably disposed in the slide rail, and a pusher and an adjustment member slidably disposed in the support member, wherein the adjustment member slidably contacts the pusher.

[0011] As a preferred embodiment of the debris cleaning device for the return working face of the coal conveyor belt in the coal-fired power plant described in this invention, the support member includes a sliding plate with both ends slidably disposed in a slide rail and a top seat symmetrically fixed on the sliding plate; a first sliding hole is provided in the middle of the sliding plate and a second sliding hole is connected to the side wall of the first sliding hole; the end of the top seat is rounded, the rounded head contacts the lower part of the telescopic plate, and a filter plate retaining groove is provided on the side wall of the top seat, as well as an adjustment groove located at the bottom of the filter plate retaining groove.

[0012] As a preferred embodiment of the debris cleaning device for the return working face of the coal conveyor belt in the coal-fired power plant described in this invention, the pusher includes a first limiting block slidably disposed in the second sliding hole, an extension plate fixed on the side wall of the first limiting block and extending to the outside of the second sliding hole, and a push plate fixed to the end of the extension plate.

[0013] As a preferred embodiment of the debris cleaning device for the return working face of the coal conveyor belt in the coal-fired power plant described in this invention, the adjusting component includes an adjusting block slidably disposed in the adjusting groove and a first spring with its two ends respectively fixed in the adjusting block and the adjusting groove.

[0014] As a preferred embodiment of the debris cleaning device for the return working face of the coal conveyor belt in the coal-fired power plant described in this invention, the adjusting block has a limiting block groove, the adjusting component also includes a second limiting block slidably disposed in the limiting block groove, and a second spring with its two ends respectively fixed on the second limiting block and the limiting block groove, the upper surface of the second limiting block contacts the first limiting block, and the lower surface of the second limiting block is rounded.

[0015] As a preferred embodiment of the debris cleaning device for the return working face of the coal conveyor belt in the coal-fired power plant described in this invention, the second adjustment component includes a second adjustment seat fixed on the bottom side wall of the sewage collection pipe section, a third limiting block slidably disposed in the second adjustment seat, and a third spring providing elasticity to the third limiting block. The upper side wall of the third limiting block contacts the second filter plate, and the lower edge of the third limiting block is rounded.

[0016] The beneficial effects of this invention are as follows: The debris cleaning device for the return working face of a coal conveyor belt in a coal-fired power plant described in this invention, through the cooperation of the cleaning mechanism and the adjustment mechanism, can not only classify the cleaned waste, but also adjust the cleaning process according to the coal condition. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0018] Figure 1 A schematic diagram of the overall structure of a debris removal device for the return working face of a coal conveyor belt in a coal-fired power plant.

[0019] Figure 2 The first sectional view of the debris removal device at the return working face of the coal conveyor belt in a coal-fired power plant;

[0020] Figure 3 This is a second sectional view of a debris removal device at the return face of a coal conveyor belt in a coal-fired power plant.

[0021] Figure 4 This is a structural diagram of the handle component;

[0022] Figure 5 A top view of the second filtering component and the first tuning component;

[0023] Figure 6 This is an exploded view of the first adjustment component;

[0024] Figure 7 This is a structural schematic diagram of the support component;

[0025] Figure 8 This is a partial enlarged cross-sectional view of the first adjustment component;

[0026] Figure 9 This is a partial enlarged sectional view of the second adjustment component;

[0027] Figure 10 This is a schematic diagram of the electric sweeping module. Detailed Implementation

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0031] Example 1

[0032] Reference Figures 1-8 This is the first embodiment of the present invention. This embodiment provides a debris cleaning device for the return working face of a coal-fired power plant conveyor belt. Specifically, it includes a cleaning mechanism 100, which includes a cleaning pipe assembly 101, a first filter assembly 102 disposed in the cleaning pipe assembly 101, and a second filter assembly 103 disposed below the first filter assembly 102; and an adjustment mechanism 200, which includes a first adjustment assembly 201 disposed below the first filter assembly 102, and a second adjustment assembly 202 disposed below the second filter assembly 103.

[0033] Furthermore, the cleaning pipe assembly 101 includes a cleaning pipe section 101a, a collection pipe section 101b connected and fixed to the lower part of the cleaning pipe section 101a, and a discharge pipe section 101c connected and fixed to the lower part of the collection pipe section 101b; a discharge port Q-1 is provided on the side wall of the collection pipe section 101b, and a baffle 101d covering the discharge port Q-1 is hinged to the outer wall of the collection pipe section 101b.

[0034] It should be noted that a sealing rubber ring is provided on the side wall of the baffle 101d. When the drain outlet Q-1 is not discharging sewage, the baffle 101d needs to be pressed tightly against the outer wall of the drain pipe section 101c to ensure the sealing of the side wall of the sewage collection pipe section 101b.

[0035] Furthermore, the first filter assembly 102 includes a telescopic plate 102a hinged at the connection between the cleaning pipe section 101a and the collecting pipe section 101b, and a first filter plate 102b slidably disposed in the telescopic plate 102a. The first filter plate 102b has a first filter hole Q-2. A handle 102c is hinged to the lower surface of the first filter plate 102b. The handle 102c includes a connecting rod 102c-1, and a first grip rod 102c-2 and a second grip rod 102c-3 fixed to the side wall of the connecting rod 102c-1.

[0036] It should be noted that the telescopic plate 102a, as Figure 3 As shown, it is obliquely arranged; when not subjected to external force, the first filter plate 102b can extend out of the telescopic plate 102a under the action of gravity; when the first filter plate 102b extends out of the telescopic plate 102a, the distance between the end of the first filter plate 102b and the inner wall of the sewage collection pipe section 101b is less than the diameter of the first filter hole Q-2.

[0037] Preferably, the second filter assembly 103 includes a second filter plate 103a hinged to the inner wall of the sludge collection pipe section 101b and located below the first filter plate 102b. The second filter plate 103a has a second filter hole Q-3, which is smaller than the first filter hole Q-2. The top edge of the second filter plate 103a facing the sewage outlet Q-1 is rounded.

[0038] It should be noted that the diameter of the second filter hole Q-3 is smaller than that of the first filter hole Q-2, so the second filter plate 103a is used to filter smaller impurities.

[0039] In this embodiment, after the debris on the return working face of the coal conveyor belt is cleaned and wastewater is formed, the wastewater will flow from the cleaning pipe section 101a to the collection pipe section 101b, and finally be discharged from the discharge pipe section 101c. During the flow of the wastewater in the collection pipe section 101b, it will first pass through the first filter plate 102b to filter out large particles of debris, and then pass through the second filter plate 103a to filter out small particles of debris. Finally, the wastewater discharged from the discharge pipe section 101c contains extremely small particles, which is convenient for subsequent filtration equipment to treat the wastewater.

[0040] Example 2

[0041] Reference Figures 1-9 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0042] Specifically, the first adjustment component 201 includes a slide rail 201a fixed to the inner wall of the sewage collection pipe section 101b and located below the telescopic plate 102a, a support member 201b slidably disposed in the slide rail 201a, and a push member 201c and an adjustment member 201d slidably disposed in the support member 201b, with the adjustment member 201d slidably contacting the push member 201c.

[0043] Furthermore, the support member 201b includes a slide plate 201b-1 slidably disposed at both ends in the slide rail 201a, and a top seat 201b-2 symmetrically fixed on the slide plate 201b-1; a first sliding hole Q-4 is provided in the middle of the slide plate 201b-1, and a second sliding hole Q-5 is connected to the side wall of the first sliding hole Q-4; the top seat 201b-2 has a rounded end that contacts the lower part of the telescopic plate 102a, and a filter plate retaining groove Q-6 is provided on the side wall of the top seat 201b-2, and an adjustment groove Q-7 is located at the bottom of the filter plate retaining groove Q-6.

[0044] It should be noted that the sliding of the slide plate 201b-1 in the slide rail 201a is driven by a motor, which is built into the slide rail 201a; the round head at the end of the top seat 201b-2 supports the lower part of the telescopic plate 102a, and the sliding of the top seat 201b-2 and the slide plate 201b-1 cooperate with each other to adjust the tilt angle of the telescopic plate 102a.

[0045] Furthermore, the pusher 201c includes a first limiting block 201c-1 slidably disposed in the second sliding hole Q-5, an extension plate 201c-2 fixed on the side wall of the first limiting block 201c-1 and extending to the outside of the second sliding hole Q-5, and a push plate 201c-3 fixed to the end of the extension plate 201c-2; the adjusting member 201d includes an adjusting block 201d-1 slidably disposed in the adjusting groove Q-7, and a first spring 201d-2 with its two ends fixed in the adjusting block 201d-1 and the adjusting groove Q-7 respectively.

[0046] Furthermore, the adjusting block 201d-1 has a limiting block groove Q-8. The adjusting component 201d also includes a second limiting block 201d-3 that is slidably disposed in the limiting block groove Q-8, and a second spring 201d-4 whose two ends are respectively fixed on the second limiting block 201d-3 and the limiting block groove Q-8. The upper surface of the second limiting block 201d-3 contacts the first limiting block 201c-1, and the lower surface of the second limiting block 201d-3 is rounded.

[0047] It should be noted that, under the restriction of the second limiting block 201d-3 on the first limiting block 201c-1, the first limiting block 201c-1 remains in contact with the top of the second sliding hole Q-5 and cannot slide downwards.

[0048] Preferably, the second adjustment assembly 202 includes a second adjustment seat 202a fixed on the bottom side wall of the sludge collection pipe section 101b, a third limiting block 202b slidably disposed in the second adjustment seat 202a, and a third spring 202c providing elastic force to the third limiting block 202b. The upper side wall of the third limiting block 202b contacts the second filter plate 103a, and the lower edge of the third limiting block 202b is rounded.

[0049] In this embodiment, when the operator has finished cleaning the debris on the return working face of the coal conveyor belt and needs to remove the debris accumulated on the first filter plate 102b and the second filter plate 103a, the operator must first open the baffle 101d to allow small particles of debris to be discharged from the drain outlet Q-1. After cleaning the debris on the second filter plate 103a, the operator must press the third limit block 202b to allow the second filter plate 103a to rotate under gravity until it fits against the inner wall of the sewage collection pipe section 101b. After this, the operator can slide the sliding plate 201b-1 from the top of the slide rail 201a to the bottom of the slide rail 201a, which will allow the large particles of debris accumulated on the first filter plate 102b to be discharged from the drain pipe section 101c. The small and large particles of debris are separated and removed, saving the subsequent debris treatment process.

[0050] It should be noted that if, during the cleaning process, the operator finds very little debris accumulated on the first filter plate 102b and a larger amount on the second filter plate 103a, it indicates that the debris on the return working face of the coal conveyor belt generated by this batch of coal is mostly small particles. In this case, the operator can collect the first filter plate 102b to improve the collection efficiency of the sludge collection pipe section 101b. When collecting the first filter plate 102b, the operator needs to ensure that the sliding plate 201b-1 is positioned on the slide rail 2. When at the bottom of 01a, pull the second handle 102c-3 to the upper part of the push plate 201c-3. Then, hold the second handle 102c-3 with one hand and push the first filter plate 102b above the filter plate slot Q-6 with the push plate 201c-3 as the fulcrum. Then, while pressing down the first filter plate 102b, pull the second handle 102c-3 to make the first filter plate 102b snap into the filter plate slot Q-6, and the first filter plate 102b is stored.

[0051] It should also be noted that when the first filter plate 102b is inserted into the filter plate slot Q-6, the end of the first filter plate 102b will press against the adjusting block 201d-1, causing the adjusting block 201d-1 to slide into the adjusting groove Q-7, while simultaneously pushing the second limiting block 201d-3 out of the first sliding hole Q-4. Afterwards, the first limiting block 201c-1 loses its limiting position, and the push plate 201c-3 slides downward. If the operator needs to reuse the first filter plate 102b, it must be done manually. When the first handle 102c-2 is pressed against the side wall of the extension plate 201c-2, the push plate 201c-3 is pushed. The push plate 201c-3 will push the first filter plate 102b out of the filter plate slot Q-6 through the handle 102c. After that, the operator can pull out the first filter plate 102b, so that the first filter plate 102b slides out of the telescopic plate 102a again under gravity, and the telescopic plate 102a is supported in its original position by the top seat 201b-2.

[0052] Example 3

[0053] Reference Figures 1-10 This is the third embodiment of the present invention, which is based on the previous embodiment.

[0054] Specifically, the cleaning pipe section 101a is equipped with an electric cleaning module 300, which includes an electric roller brush 301, a fan-shaped water spray unit 302, a mist water spray unit 303 and a scraper 304 arranged in parallel.

[0055] Furthermore, a pneumatic cleaner may also be installed on the scraper 304 to assist in drying the surface of the coal conveyor belt after the scraper 304 has removed the sewage.

[0056] In this embodiment, when cleaning the surface of the coal conveyor belt, the electric roller brush 301 is used to remove large pieces of debris, the fan-shaped water spray unit 302 is used to remove small pieces of debris from the surface of the coal conveyor belt, the mist water spray unit 303 can clean the extremely small coal dust from the surface of the coal conveyor belt, and finally the wastewater on the surface of the coal conveyor belt is scraped off by the scraper 304.

[0057] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine task in design, manufacturing, and production without requiring extensive experimentation.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A device for cleaning debris on the return working surface of a coal conveyor belt in a coal-fired thermal power plant, characterized in that: include, A cleaning mechanism (100) comprises a cleaning pipe assembly (101), a first filter assembly (102) arranged in the cleaning pipe assembly (101), and a second filter assembly (103) arranged below the first filter assembly (102); The positioning mechanism (200) comprises a first positioning component (201) arranged below the first filtering component (102), and a second positioning component (202) arranged below the second filtering component (103).

2. The debris cleaning device for the return working surface of the coal conveyor belt of a coal-fired thermal power plant according to claim 1 is characterized by: The cleaning pipe assembly (101) comprises a cleaning pipe section (101a), a sewage collecting pipe section (101b) connected and fixed to the lower part of the cleaning pipe section (101a), and a sewage discharge pipe section (101c) connected and fixed to the lower part of the sewage collecting pipe section (101b); A sewage outlet (Q-1) is provided on the side wall of the sewage collecting pipe section (101b), and a baffle (101d) covering the sewage outlet (Q-1) is hingedly connected to the outer wall of the sewage collecting pipe section (101b).

3. The debris cleaning device for the return working surface of the coal conveyor belt of a coal-fired thermal power plant according to claim 2 is characterized by: The first filter assembly (102) comprises a telescopic plate (102a) hinged at the connection between the sewage cleaning pipe section (101a) and the sewage collecting pipe section (101b), and a first filter plate (102b) slidably arranged in the telescopic plate (102a), and a first filter hole (Q-2) is formed on the first filter plate (102b); A handle member (102c) is hinged on the lower surface of the first filter plate (102b), and the handle member (102c) comprises a connecting rod (102c-1), and a first handle rod (102c-2) and a second handle rod (102c-3) fixed on the side wall of the connecting rod (102c-1).

4. The debris cleaning device for the return working surface of the coal conveyor belt of a coal-fired thermal power plant according to claim 3 is characterized by: The second filter assembly (103) comprises a second filter plate (103a) hinged on the inner wall of the sewage collecting pipe section (101b) and located below the first filter plate (102b); a second filter hole (Q-3) is provided on the second filter plate (103a); the second filter hole (Q-3) is smaller than the first filter hole (Q-2); and the top edge of the second filter plate (103a) facing the sewage outlet (Q-1) is chamfered.

5. The debris cleaning device for the return working surface of the coal conveyor belt of a coal-fired thermal power plant according to claim 4 is characterized in that: The first position adjustment component (201) comprises a slide rail (201a) fixed to the inner wall of the sewage collecting pipe section (101b) and located below the telescopic plate (102a), a support member (201b) slidably arranged in the slide rail (201a), and a push member (201c) and an adjusting member (201d) slidably arranged in the support member (201b), wherein the adjusting member (201d) slidably contacts the push member (201c).

6. The debris cleaning device for the return working surface of the coal conveyor belt of a coal-fired thermal power plant according to claim 5 is characterized by: The support member (201b) comprises a slide plate (201b-1) with two ends slidably arranged in the slide rails (201a), and a top seat (201b-2) symmetrically fixed on the slide plate (201b-1); The slide plate (201b-1) is provided with a first sliding hole (Q-4) in the middle thereof, and a second sliding hole (Q-5) connected to the side wall of the first sliding hole (Q-4); The end of the top seat (201b-2) is a round head, and the round head contacts the lower part of the telescopic plate (102a). The side wall of the top seat (201b-2) is provided with a filter plate clamping slot (Q-6) and an adjustment slot (Q-7) located at the bottom of the filter plate clamping slot (Q-6).

7. The debris cleaning device for the return working surface of the coal conveyor belt of a coal-fired thermal power plant according to claim 6 is characterized by: The push piece (201c) comprises a first limit block (201c-1) slidably arranged in the second sliding hole (Q-5), an extension plate (201c-2) fixed on the side wall of the first limit block (201c-1) and extending outside the second sliding hole (Q-5), and a push plate (201c-3) fixed to the end of the extension plate (201c-2).

8. The debris cleaning device for the return working surface of the coal conveyor belt of a coal-fired thermal power plant according to claim 7 is characterized by: The adjusting member (201d) comprises an adjusting block (201d-1) slidably arranged in the adjusting groove (Q-7), and a first spring (201d-2) with two ends respectively fixed in the adjusting block (201d-1) and the adjusting groove (Q-7).

9. The debris cleaning device for the return working surface of the coal conveyor belt of a coal-fired thermal power plant according to claim 8 is characterized in that: The regulating block (201d-1) is provided with a limit block groove (Q-8), and the regulating member (201d) further comprises a second limit block (201d-3) slidably arranged in the limit block groove (Q-8), and a second spring (201d-4) with two ends respectively fixed on the second limit block (201d-3) and the limit block groove (Q-8), the upper surface of the second limit block (201d-3) contacts the first limit block (201c-1), and the lower surface of the second limit block (201d-3) is chamfered.

10. The debris cleaning device for the return working surface of the coal conveyor belt of a coal-fired thermal power plant according to claim 9 is characterized in that: The second positioning assembly (202) comprises a second positioning seat (202a) fixed on the bottom side wall of the sewage collecting pipe section (101b), a third limiting block (202b) slidably arranged in the second positioning seat (202a), and a third spring (202c) providing elastic force for the third limiting block (202b), the upper side wall of the third limiting block (202b) contacts the second filter plate (103a), and the lower edge of the third limiting block (202b) is chamfered.

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