Scraper special for non-metal mud scraper

Abstract

The utility model discloses a special scraper for a non-metal mud scraper, which comprises a scraper main body made of glass fiber reinforced plastics, and the section of the scraper main body is of a C-shaped structure when the length of the scraper main body is not more than 6.5 meters; when the length is larger than 6.5 m, reinforced folded edges are additionally arranged on the upper and lower convex edges of the C-shaped structure, and a forward stroke wear-resistant shoe and a return stroke wear-resistant shoe are arranged at the bottom and the upper part of the scraper plate and are fixed through bolts. According to the utility model, the strength and rigidity of the scraping plate are effectively improved, the self weight and the pressure on the guide rail are reduced, the service life of equipment is prolonged, and the sewage treatment efficiency and effect are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment equipment, in particular to a special scraper for a non-metallic mud scraper. Background Art

[0002] In existing municipal sewage systems, chain-type scrapers are crucial equipment in sedimentation tanks. They consist of a drive, chain, and scrapers. They circulate within the tank. The lower scraper moves from back to front, closely following the tank bottom. This effectively scrapes deposited activated sludge into the hopper at the front. The length of the scraper, typically 6 to 10 meters, depends on the project design. When operating at the bottom of the tank, it pushes the sludge forward. The scrapers are driven by chains on either side. Due to their length, they are prone to deformation under stress. When the scraper reaches the upper portion, it travels on a guide rail fixed to the tank wall. Due to the length of the scraper, its weight is relatively high, placing significant pressure on the guide rail and its supports, and the center section is prone to falling.

[0003] In summary, a scraper with a light structure and high strength is needed to overcome the shortcomings of the existing technology. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a scraper with high strength and light weight.

[0005] A scraper specially made of non-metallic material for a mud scraper comprises: a scraper body. When the length of the scraper body is not more than 6.5m, the cross-section of the scraper body is a C-shaped structure; when the length of the scraper body is more than 6.5m, its cross-section is still a C-shaped structure, and reinforced folding edges are integrally formed on the upper and lower convex edges of the C-shaped structure; a wear-resistant shoe for the outward stroke is installed at the bottom of the scraper body, and a wear-resistant shoe for the return stroke is installed at the upper part.

[0006] As a preferred solution of the present invention, the outward wear-resistant shoe and the return wear-resistant shoe are both fixed to the scraper body by bolts, and the bolts are connected and fixed in groups of two.

[0007] As a preferred solution of the present invention, when the length of the scraper body is not greater than 6.5 m, two wear-resistant shoes for the outward journey and two wear-resistant shoes for the return journey are symmetrically arranged.

[0008] As a preferred solution of the present invention, when the length of the scraper body is greater than 6.5m, three wear-resistant shoes are evenly spaced on the outward journey, and two wear-resistant shoes are symmetrically arranged on the return journey.

[0009] As a preferred solution of the present invention, the scraper body is made of glass fiber reinforced plastic.

[0010] As a preferred solution of the present invention, the scraper body has a height of 181 mm.

[0011] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0012] The utility model has high strength and strong deformation resistance. When the scraper length is greater than 6.5m, an integrally formed reinforced folding edge is added to the upper and lower convex edges of the C-shaped structure, which greatly enhances the overall strength and rigidity of the scraper, reduces deformation under stress, and improves the efficiency and effect of scraping mud. The scraper body is made of non-metallic materials such as glass fiber reinforced plastic. This material not only has high strength but also has low density, which greatly reduces the weight of the scraper, significantly reduces the pressure on the guide rail and its supporting structure, extends the service life of the guide rail, and also reduces the frequency and cost of equipment maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view of the overall structure of a common scraper of the present utility model;

[0014] Figure 2 This is a cross-sectional view of the main body of a common scraper of the present utility model;

[0015] Figure 3 This is a front view of the overall structure of the extended scraper of the utility model;

[0016] Figure 4 This is a cross-sectional view of the main body of the extended scraper of the utility model.

[0017] In the figure: 1. Scraper body; 2. Return wear-resistant shoe; 3. Outward wear-resistant shoe; 4. Reinforced folding edge. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Example 1

[0020] like Figure 1 、 2 As shown, in this embodiment, the scraper body 1 is 6.2 meters long and 181 mm high, which belongs to the category of length not exceeding 6.5 meters. Its cross-section is designed as a C-shaped structure, and no additional reinforced folding edge 4 is required. The scraper body 1 is made of glass fiber reinforced plastic, which has the characteristics of light weight and high strength. At the bottom of the scraper body 1, two outward wear-resistant boots 3 are symmetrically arranged, and at the upper part of the scraper body 1, two return wear-resistant boots 2 are also symmetrically arranged. These wear-resistant boots are fixed to the scraper body 1 by bolts, and each set of bolts has two to ensure the firmness of the connection.

[0021] During use, the scraper of this embodiment can stably scrape away the sludge deposited at the bottom of the sedimentation tank. Due to its light weight, the pressure on the guide rail and its supporting structure is relatively small, thereby extending the service life of the equipment.

[0022] Example 2

[0023] like Figure 3 、 4 As shown, the scraper body 1 of this embodiment is 8.5 meters long and 181 mm high, which exceeds the critical value of 6.5 meters. Therefore, reinforced folding edges 4 are integrally formed on the upper and lower convex edges of the C-shaped structure to enhance the overall strength and rigidity of the scraper and prevent deformation under stress. Similarly, the scraper body 1 is made of glass fiber reinforced plastic; at the bottom of the scraper body 1, three outgoing wear-resistant boots 3 are equidistantly arranged to better adapt to the stress conditions of the long scraper during the mud scraping process, and two return wear-resistant boots 2 are symmetrically arranged on the upper part of the scraper body 1.

[0024] Since the scraper of this embodiment is long and has a relatively large deadweight, the design of the reinforced folded edge 4 effectively reduces the pressure on the guide rail and its supporting structure, thus avoiding the problem of the middle portion falling.

[0025] The working principle of the present utility model is as follows: under the action of the driving device, the scraper is driven by a chain to perform a circular motion in the sedimentation tank. The scraper body 1 moves from back to front close to the bottom of the tank, and the activated sludge deposited on the bottom of the tank is effectively scraped into the mud bucket in front by the wear-resistant boots 3 at the bottom of the scraper. When the scraper is long (greater than 6.5M), the overall strength and rigidity of the scraper are improved by adding reinforced folding edges 4 on the upper and lower convex edges of the C-shaped structure, preventing deformation under stress and ensuring the stability and efficiency of the scraping process. Since the scraper body 1 adopts a lightweight and high-strength glass fiber reinforced plastic material, the dead weight is greatly reduced, the pressure on the guide rail and its supporting structure is reduced, and the problem of the middle part easily falling is avoided.

[0026] The components in this article are all universal standard parts or components known to those skilled in the art. Their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods, so they will not be described in detail here.

[0027] Although the specific embodiments of the present invention are described in detail above, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by ordinary technicians in this field, various changes can be made without departing from the purpose of the present invention. Modifications or deformations that do not involve creative work are still within the scope of protection of the present invention.

Claims

1. A non-metallic scraper blade, comprising: The scraper body (1) is characterized in that: when the length of the scraper body (1) is not greater than 6.5m, the cross-section of the scraper body (1) is a C-shaped structure; when the length of the scraper body (1) is greater than 6.5m, its cross-section is still a C-shaped structure, and reinforced folding edges (4) are integrally formed on the upper and lower convex edges of the C-shaped structure; the bottom of the scraper body (1) is equipped with a forward wear-resistant boot (3), and the upper part is equipped with a return wear-resistant boot (2).

2. The non-metallic scraper blade according to claim 1, characterized in that: The outward wear-resistant shoe (3) and the return wear-resistant shoe (2) are both fixedly mounted on the scraper body (1) by means of bolts, with two bolts forming a group for connection and fixing.

3. The non-metallic scraper blade according to claim 1, characterized in that: When the length of the scraper body (1) is not greater than 6.5 m, the outward wear-resistant shoe (3) and the return wear-resistant shoe (2) are both symmetrically arranged in pairs.

4. The non-metallic scraper blade according to claim 1, characterized in that: When the length of the scraper body (1) is greater than 6.5 m, three wear-resistant shoes (3) are arranged at equal intervals on the outward journey, and two wear-resistant shoes (2) are arranged symmetrically on the return journey.

5. The non-metallic scraper blade according to claim 1, characterized in that: The scraper body (1) is made of glass fiber reinforced plastic.

6. The non-metallic scraper blade according to claim 1, characterized in that: The scraper body (1) has a height of 181 mm.

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