Novel bottom slag system cleaning chain scraper

Abstract

The utility model discloses a novel bottom slag system cleaning chain scraper, and relates to the field of mechanical equipment. The cleaning device comprises a supporting plate, step blocking pieces are arranged at the two ends of the front face of the supporting plate in the length direction, a cleaning rubber piece is attached to the front face of the supporting plate, a cleaning steel wire brush is attached to the front face of the cleaning rubber piece, and the bottom of the cleaning steel wire brush protrudes out of the bottom of the cleaning rubber piece; the two ends of the cleaning rubber piece and the two ends of the cleaning steel wire brush abut against the step blocking pieces correspondingly, and the cleaning rubber piece and the cleaning steel wire brush are screwed and fixed to the supporting plate through bolts and nuts which are arranged in a matched mode. A baffle with an n-shaped section is inserted into the top of the supporting plate, and the front side and the rear side of the inner wall of the baffle abut against the end of the bolt and the end of the nut respectively. The cleaning device has the advantages that the cleaning steel wire brush is additionally arranged on the dust facing face of the cleaning rubber piece to clean hot dust so as to protect the cleaning rubber piece, the cleaning rubber piece assists in cleaning residual dust, and the cleaning efficiency and the cleaning effect are guaranteed.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical equipment, relates to the field of thermal power generation equipment, and particularly relates to a novel cleaning chain scraper for a bottom slag system. Background Art

[0002] When the boiler of a thermal power plant burns, a large amount of ash, coke blocks, etc. will be generated, and these residual substances after combustion will fall on the steel belt conveyor of the boiler bottom slag system. The steel belt conveyor transports the combustion residues to equipment such as a slag crusher, and after further processing, they are sent away.

[0003] The steel belt conveyor transports the combustion residues through steel belt pieces, and some of the fine ash transported will fall to the bottom of the machine box of the steel belt conveyor through the gaps between the steel belt pieces. The accumulation of fine ash in the machine box of the steel belt conveyor will affect the stable operation of the equipment, and in severe cases, it will cause the bottom slag system to shut down, posing a major hidden danger. Therefore, in order to prevent the accumulation of fine ash in the machine box of the steel belt conveyor, a cleaning chain is installed at the bottom of the box body of the steel belt conveyor to clean the accumulated fine ash inside.

[0004] The cleaning chain is mainly composed of a scraper and a film. The scraper is assembled with the drive chain, and the scraper supports the film to move along the inside of the box and clean the ash accumulated inside the box. However, since the ash accumulated inside the box has a certain temperature. When the film runs for a long time to clean the ash with temperature, it will cause the film to age, resulting in a decrease in the ash cleaning efficiency and the ash cleaning effect. Therefore, it is necessary to frequently maintain and replace the film, reducing the use efficiency. Content of the Utility Model

[0005] The utility model is to solve the technical problem that the film of the scraper is easily damaged and aged by hot ash, affecting the service life, and provides a novel cleaning chain scraper for a bottom slag system. By adding a cleaning wire brush on the ash-facing surface of the cleaning film to clean the hot ash, the cleaning film is protected, and the cleaning film assists in cleaning the remaining ash, ensuring the cleaning efficiency and the cleaning effect.

[0006] The technical solution adopted by the utility model is: to provide a novel cleaning chain scraper for a bottom slag system, including a support plate. At both ends of the support plate in the length direction of the front surface, step stoppers are provided. A cleaning film is attached to the front surface of the support plate. A cleaning wire brush is attached to the front surface of the cleaning film, and the bottom of the cleaning wire brush protrudes from the bottom of the cleaning film; both ends of the cleaning film and both ends of the cleaning wire brush are respectively abutted against the step stoppers, and both the cleaning film and the cleaning wire brush are tightened and fixed on the support plate by means of matching bolts and nuts; a baffle with an "n"-shaped cross-section is inserted at the top of the support plate, and the front and rear sides of the inner wall of the baffle are respectively abutted against the ends of the bolt and the nut.

[0007] The cleaning film and the cleaning wire brush are assembled on the supporting plate with the help of matching bolts and nuts, and a baffle is arranged on the supporting plate, and the front and rear sides of the inner wall of the baffle are respectively abutted against the ends of the bolts and nuts to prevent the bolts and nuts from loosening and falling off, thereby ensuring the reliability of the assembly of the cleaning film and the cleaning wire brush. During the cleaning operation, the cleaning wire brush is assembled on the dust-facing surface of the cleaning film to protect the cleaning film, prevent the cleaning film from contacting hot dust, and extend its service life. The cleaning film scrapes the remaining dust cleaned by the cleaning wire brush to ensure the cleaning effect, and the use is flexible and efficient.

[0008] To further optimize the technical solution, assembly holes are provided at both ends of the support plate in the length direction.

[0009] The support plate is assembled onto the transmission chain through the assembly holes at both ends thereof for cleaning operations, thereby ensuring the flexibility and convenience of assembly and disassembly of the support plate.

[0010] To further optimize the technical solution, the cleaning wire brush includes a matching clip and wire bristles, the two ends of the clip are respectively abutted against the step stopper, and the clip is abutted against the front of the cleaning film, and is assembled on the support plate with the help of matching bolts and nuts.

[0011] The cleaning wire brush clamps the wire bristles with a clip, has a simple structure and is stable to use. The two ends of the clip are respectively abutted against the step stoppers to position the clip, which is convenient and quick to assemble and prevents the clip from loosening later, thereby ensuring the stability and reliability of cleaning.

[0012] To further optimize the technical solution, through holes are provided on the support plate, the clamping piece, and the cleaning film along the length direction, the positions and numbers of the through holes match, and protective rings are sleeved in the through holes, and bolts are penetrated and assembled with the protective rings.

[0013] Through holes with matching numbers and positions are provided on the support plate, the clamping piece and the cleaning film to facilitate the insertion and assembly of bolts. Protective rings are provided in the through holes to protect the through holes and avoid cracking of the through holes, thereby ensuring safety in use.

[0014] To further optimize the technical solution, the back side of the baffle is evenly provided with notches along the length direction, the notches match the positions and numbers of the bolts, and the bolts are snap-fitted into the notches.

[0015] The back of the baffle is clamped with the bolt by means of the notch, and the notch does not interfere with the assembly of the bolt. The clamping of the bolt and the notch enables the baffle to be quickly installed in place, supports the baffle, improves the assembly strength of the baffle, and ensures the use effect.

[0016] To further optimize the technical solution, the bolts all protrude from the back of the baffle through the notch and are threadedly connected with anti-loosening nuts, which abut against the back of the baffle.

[0017] After the bolt passes through the notch, a locknut is threadedly connected. The locknut enhances the firmness of the baffle assembly and the tightness of the nut and bolt assembly.

[0018] The beneficial effects of the present utility model are as follows:

[0019] 1. By adding cleaning wire brushes on the dust-facing surface of the cleaning film to clean the hot ash at the bottom inside the steel belt machine casing, the cleaning wire brushes shield the cleaning film to prevent the hot ash from damaging the cleaning film, improve the service life of the cleaning film, and at the same time, the cleaning film scrapes the remaining ash missed by the cleaning wire brushes to ensure the cleaning effect and improve the cleaning efficiency;

[0020] 2. The cleaning wire brushes are loaded with wire bristles by clip pieces and are attached to the front of the cleaning clip pieces. Through holes with matching numbers and positions are provided on the support plate, the cleaning film, and the clip pieces, facilitating the assembly by passing bolts through. Protective rings are sleeved in the through holes to prevent the bolts from wearing the through holes and ensure the reliability of use;

[0021] 3. A baffle is inserted at the top of the support plate. The front and back sides of the inner wall of the baffle are in contact with the end faces of the supporting bolts and nuts, thus preventing the bolts and nuts from loosening and ensuring the reliability of the assembly. The notches provided on the back of the baffle match the number and position of the bolts. The notches avoid interfering with the assembly of the bolts. The bolts passing through the notches are threadedly connected with locknuts to enhance the firmness of the baffle assembly and ensure the tightness of the nut assembly. Description of the Drawings

[0022] Figure 1 is a front structural schematic diagram of the slag system cleaning chain scraper of this embodiment;

[0023] Figure 2 is a back structural schematic diagram of the slag system cleaning chain scraper of this embodiment;

[0024] Figure 3 is a side sectional structural schematic diagram of the slag system cleaning chain scraper of this embodiment;

[0025] Figure 4 is a structural schematic diagram of the support plate of this embodiment;

[0026] Figure 5 is a structural schematic diagram of the assembly of the support plate and the cleaning film of this embodiment;

[0027] Figure 6 is a structural schematic diagram of the cleaning wire brush of this embodiment;

[0028] Figure 7 is a structural schematic diagram of the baffle of this embodiment.

[0029] In the figure, 1 is a support plate; 101 is a stepped stopper; 102 is an assembly hole; 2 is a cleaning film; 3 is a cleaning wire brush; 301 is a clip; 302 is a wire brush hair; 4 is a bolt; 401 is a locknut; 5 is a nut; 6 is a baffle; 601 is a notch; 7 is a through hole; 701 is a protective ring. Specific embodiments

[0030] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] Please refer to the attached Figures 1-6 , a novel cleaning chain scraper for the bottom slag system, comprising a support plate 1. Assembly ports are provided at both ends of the support plate 1 in the length direction. The support plate 1 is assembled to the drive chain through the assembly ports to drive the support plate 1 to move. The support plate 1 is provided with a cleaning film 2 and a cleaning wire brush 3. The cleaning film 2 is attached to the front surface of the support plate 1, and the cleaning wire brush 3 is attached to the ash-facing surface of the cleaning film 2, that is, arranged on the front surface of the cleaning film 2. The cleaning film 2 and the cleaning wire brush 3 are tightened and fixed on the support plate 1 by means of a matching bolt 4 and nut 5. Stepped stoppers 101 are provided at both ends of the support plate 1 in the length direction of the front surface. Both ends of the cleaning film 2 and both ends of the cleaning wire brush 3 are respectively abutted against the stepped stoppers 101. The stepped stoppers 101 quickly position the cleaning film 2 and the cleaning wire brush 3, realize the quick assembly of the cleaning film 2 and the cleaning wire brush 3, and limit the movement of the cleaning film 2 and the cleaning wire brush 3 to ensure the reliability of use;

[0032] Please refer to the attached Figures 3-6 , the cleaning wire brush 3 is a matching clip 301 and wire brush hair 302. The clip 301 clamps and fixes the wire brush hair 302, and both ends of the clip 301 are respectively abutted against the stepped stoppers 101 to position the cleaning wire brush 3. When using the bolt 4 and nut 5 to tighten and assemble it, through holes 7 are provided on the support plate 1, the clip 301, and the cleaning film 2. The positions and numbers of the through holes 7 match, so that the through holes 7 communicate with each other to facilitate the passing of the bolt 4 and tighten and fix it with the nut 5. Protective rings 701 are sleeved on the through holes 7, and the bolt 4 is inserted into the protective ring 701 to prevent the bolt 4 from directly contacting the support plate 1, the clip 301, and the cleaning film 2, avoid wear, and extend its service life;

[0033] Please refer to the attached Figure 2 , attached Figure 3, after the cleaning wire brush 3 is assembled to the dust-facing surface of the cleaning film 2, the bottom of the cleaning wire brush 3 protrudes from the bottom surface of the cleaning film 2, that is, the wire bristles 302 protrude from the bottom of the cleaning film 2, enhancing the shielding and protection effect on the cleaning film 2. When performing the cleaning operation, the wire bristles 302 first come into contact with the accumulated ash and clean the accumulated ash, preventing the cleaning rubber from directly contacting the hot ash, thereby protecting the cleaning film 2 and extending the service life of the cleaning film 2. The cleaning film 2 behind the wire bristles 302 continues to scrape the accumulated ash remaining after the cleaning by the wire bristles 302 to ensure the cleaning effect of the accumulated ash;

[0034] Please refer to the attached Figure 1 , attached Figure 2 , attached Figure 7 , a baffle 6 with an "n"-shaped cross-section is inserted into the top of the support plate 1. The front and rear sides of the inner wall of the baffle 6 are respectively in contact with the end faces of the bolt 4 and the nut 5, and a notch 601 is uniformly arranged along the length direction on the back of the baffle 6. The position and number of the notch 601 match those of the bolt 4, and the bolt 4 is clamped with the notch 601. The baffle 6 prevents the bolt 4 and the nut 5 from loosening and shields and protects the bolt 4 and the nut 5. At the same time, the bolt 4 protrudes from the back of the baffle 6 and is threadedly connected with a locknut 401 to enhance the firmness of the assembly of the baffle 6 and the support plate 1;

[0035] The working principle of the cleaning chain scraper of the new bottom slag system is as follows: When assembling the scraper, the cleaning film 2 and the cleaning wire brush 3 are successively arranged in front and behind between the stepped stoppers 101. The two ends of the cleaning film 2 and the two ends of the clip 301 are respectively in contact with the steps of the stepped stoppers 101, realizing the rapid positioning of the cleaning film 2 and the cleaning wire brush 3, facilitating the quick alignment and connection of the through holes 7 on the support plate 1, the cleaning film 2, and the clip 301, ensuring the convenience of the assembly and fixation of the bolt 4 and the nut 5, and the stepped stoppers 101 ensure the firmness of the use of the cleaning film 2 and the cleaning wire brush 3. Then, the baffle 6 is inserted from the top of the support plate 1, and the front and rear sides of the inner wall of the baffle 6 are respectively in contact with the end faces of the bolt 4 and the nut 5, thereby preventing the bolt 4 and the nut 5 from loosening and ensuring the firmness of the assembly. After the bolts 4 on the back of the support plate 1 are respectively clamped into the notches 601 and threadedly connected with the locknuts 401, the firmness of the assembly of the baffle 6 is ensured and the fastening of the nut 5 is enhanced.

[0036] When the scraper runs, the drive chain drives the support plate 1 to move. The wire bristles 302 are supported by the clip 301 on the dust-facing surface of the cleaning film 2, and the periphery of the wire bristles 302 protrudes from the periphery of the cleaning film 2, thereby protecting the cleaning film 2 from directly contacting the hot ash, extending the service life of the cleaning film 2, and the cleaning film 2 cleans the remaining ash after the cleaning by the wire bristles 302 to ensure the cleaning effect and improve the cleaning efficiency.

Claims

1. A novel bottom ash system cleaning chain scraper, comprising a support plate (1), characterized in that: Both ends of the front length direction of the support plate (1) are provided with stepped stoppers (101); a cleaning film (2) is attached to the front of the support plate (1); a cleaning wire brush (3) is attached to the front of the cleaning film (2), and the bottom of the cleaning wire brush (3) protrudes from the bottom of the cleaning film (2); both ends of the cleaning film (2) and the cleaning wire brush (3) are respectively in contact with the stepped stoppers (101), and the cleaning film (2) and the cleaning wire brush (3) are both tightened and fixed to the support plate (1) by means of matching bolts (4) and nuts (5); a baffle (6) with an "n"-shaped cross section is inserted at the top of the support plate (1), and the front and rear sides of the inner wall of the baffle (6) are respectively in contact with the ends of the bolts (4) and the nuts (5).

2. A new type of bottom ash system cleaning chain scraper according to claim 1, characterized in that: Both ends of the support plate (1) in the length direction are provided with assembly holes (102).

3. The novel bottom ash system cleaning chain scraper according to claim 1 is characterized by: The cleaning wire brush (3) comprises a matching clip (301) and wire bristles (302), the two ends of the clip (301) respectively abutting against the step stopper (101), and the clip (301) abutting against the front of the cleaning film (2), and is assembled on the support plate (1) by means of matching bolts (4) and nuts (5).

4. A new type of bottom ash system cleaning chain scraper according to claim 3, characterized in that: The support plate (1), the clamping piece (301), and the cleaning film (2) are all provided with through holes (7) along the length direction, the positions and numbers of the through holes (7) are matched, and protective rings (701) are sleeved in the through holes (7), and the bolts (4) are installed through the protective rings (701).

5. The novel bottom ash system cleaning chain scraper according to claim 1 is characterized by: The back side of the baffle (6) is evenly provided with notches (601) along the length direction, the notches (601) match the positions and numbers of the bolts (4), and the bolts (4) are engaged with the notches (601).

6. A new type of bottom ash system cleaning chain scraper according to claim 5, characterized in that: The bolts (4) all protrude from the back of the baffle (6) through the notch (601) and are threadedly connected with a locking nut (401), and the locking nut (401) abuts against the back of the baffle (6).

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