Scraper chain with temperature controlled by phase-change material

Abstract

The invention discloses a phase change material temperature control scraper chain which comprises a chain and a plurality of scrapers, the chain is formed by sequentially connecting a plurality of chain links end to end, the scrapers are arranged on the chain links, and the scrapers are filled with CPCM phase change composites.Compared with the prior art, the service life of the scraper chain in an extreme environment can be prolonged; and the temperature can be effectively controlled in a high-temperature or low-temperature environment.

Description

Technical Field

[0001] This invention relates to the technical field of scraper chains, and in particular to the technical field of a scraper chain with phase change material temperature control. Background Technology

[0002] Scraper conveyors are widely used in the grain and mining industries due to their stable conveying and large conveying capacity. Scrapers are fixed on chains to form scraper chains, which serve as traction components. The scraper chains circulate and drive the material along the chute until it is unloaded at the head of the machine, thus completing the material conveying process.

[0003] Existing scraper chains have the following disadvantages: 1. When conveying low-temperature materials, the scraper chain temperature decreases and the scraper chain becomes brittle; 2. When conveying high-temperature materials, the scraper chain absorbs the material temperature, resulting in insufficient high-temperature mechanical properties of the material, annealing, and deformation of the scraper chain. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art by proposing a scraper chain for temperature control of phase change materials, which can solve at least one of the above problems.

[0005] To achieve the above objectives, the present invention proposes a scraper chain for temperature control of phase change material, comprising a chain composed of several chain links connected end to end and several scrapers, wherein the chain links are provided with scrapers and the scrapers are filled with CPCM phase change composite material.

[0006] Preferably, the link includes a link body, a hinge seat integrally formed at the rear end of the link body, a hinge groove provided at the rear end of the hinge seat, a hinge joint integrally formed at the front end of the link body that mates with the hinge groove, the hinge joint having an annular cross-section, and a pin hole penetrating the hinge groove on the hinge seat.

[0007] Preferably, scrapers are provided on both the upper and lower sides of the chain link body, and the connection end of the scraper to the chain link body is a concave arc-shaped surface, with the upper and lower sides of the scraper cooperating with the concave arc-shaped surface.

[0008] Preferably, the scraper is welded to the chain link body, and the scraper is attached to and welded to the front end of the hinge seat.

[0009] Preferably, the rear side of each scraper is provided with a reinforcing angle iron that is welded to the hinge seat.

[0010] Preferably, the scraper has cavities arranged sequentially from top to bottom, one end of each cavity penetrates a concave arc-shaped surface, and the cavity is filled with CPCM phase change composite material.

[0011] Preferably, the pin hole is hinged to a corresponding hinge joint via a pin shaft, and the insertion end of the pin shaft is provided with a retaining ring, which is fixedly connected to the pin shaft via a cylindrical pin.

[0012] The beneficial effects of the present invention are as follows: By providing scrapers on the chain links and filling the scrapers with CPCM phase change composite material, the present invention can suppress the heating or cooling of the scraper chain by the heat absorption and release of CPCM phase change composite material. Compared with the prior art, it can improve the service life of the scraper chain in extreme environments and effectively control the temperature in high or low temperature environments.

[0013] The features and advantages of the present invention will be described in detail through embodiments and in conjunction with the accompanying drawings. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a scraper chain for temperature control of phase change materials according to the present invention; Figure 2 This is a schematic diagram of the scraper's structure.

[0015] In the figure: 1-link, 2-scraper, 3-CPCM phase change composite material, 4-reinforcing angle iron, 5-cavity, 6-pin, 7-retaining ring, 8-cylindrical pin, 11-link body, 12-hinge seat, 13-hinge groove, 14-hinge joint, 15-pin hole, 16-concave arc surface. Detailed Implementation

[0016] See Figure 1 , Figure 2 The present invention discloses a scraper chain for temperature control of phase change material, comprising a chain consisting of several chain links 1 connected end to end and several scrapers 2, wherein the chain links 1 are provided with scrapers 2, and the scrapers 2 are filled with CPCM phase change composite material 3.

[0017] The link 1 includes a link body 11, a hinge seat 12 integrally formed at the rear end of the link body 11, a hinge groove 13 provided at the rear end of the hinge seat 12, and a hinge joint 14 integrally formed at the front end of the link body 11 to cooperate with the hinge groove 13. The hinge joint 14 has an annular cross-section, and a pin hole 15 through the hinge groove 13 is provided on the hinge seat 12.

[0018] Scrapers 2 are provided on both the upper and lower sides of the chain link body 11. The connection end of the scraper 2 with the chain link body 11 is a concave arc surface 16, and the upper and lower sides of the scraper 2 cooperate with the concave arc surface 16.

[0019] The scraper 2 is welded to the chain link body 11, and the scraper 2 is attached to and welded to the front end of the hinge seat 12.

[0020] Each scraper 2 is provided with a reinforcing angle iron 4 on its rear side, which is welded to the hinge seat 12.

[0021] The scraper 2 has cavities 5 arranged sequentially from top to bottom. One end of the cavity 5 passes through the concave arc surface 16, and the cavity 5 is filled with CPCM phase change composite material 3.

[0022] The pin hole 15 is hinged to the corresponding hinge joint 14 via the pin 6. The insertion end of the pin 6 is provided with a retaining ring 7, and the retaining ring 7 is fixedly connected to the pin 6 via a cylindrical pin 8.

[0023] When the temperature is >600℃, molten salt-based CPCM (such as NaNO3-KNO3+carbon fiber) can be used, and when the temperature is between 200℃ and 400℃, paraffin / expanded graphite composite materials can be used.

[0024] The working process of this invention: The present invention discloses a scraper chain with phase change material temperature control. During operation, a scraper 2 is provided on the chain link 1, and the scraper 2 is filled with CPCM phase change composite material 3. The heat absorption and release of CPCM phase change composite material 3 suppresses the heating or cooling of the scraper chain. Compared with the prior art, it can improve the service life of the scraper chain in extreme environments and effectively control the temperature in high or low temperature environments.

[0025] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the scope of protection of the present invention.

Claims

1. A scraper chain for temperature control of phase change materials, characterized in that: It includes a chain consisting of several links (1) connected end to end and several scrapers (2), with scrapers (2) provided on the links (1) and the scrapers (2) filled with CPCM phase change composite material (3).

2. The scraper chain for temperature control of phase change materials as described in claim 1, characterized in that: The link (1) includes a link body (11), the rear end of the link body (11) is integrally formed with a hinge seat (12), the rear end of the hinge seat (12) is provided with a hinge groove (13), the front end of the link body (11) is integrally formed with a hinge joint (14) that cooperates with the hinge groove (13), the cross-section of the hinge joint (14) is annular, and the hinge seat (12) is provided with a pin hole (15) that penetrates the hinge groove (13).

3. The scraper chain for temperature control of phase change materials as described in claim 2, characterized in that: The upper and lower sides of the link body (11) are provided with scrapers (2), and the connection end of the scraper (2) and the link body (11) is a concave arc surface (16). The upper and lower sides of the scraper (2) are matched with the concave arc surface (16).

4. The scraper chain for temperature control of phase change materials as described in claim 2, characterized in that: The scraper (2) is welded to the chain link body (11), and the scraper (2) is attached to and welded to the front end of the hinge seat (12).

5. The scraper chain for temperature control of phase change materials as described in claim 2, characterized in that: Each scraper (2) is provided with a reinforcing angle iron (4) that is welded to the hinge seat (12) on its rear side.

6. The scraper chain for temperature control of phase change materials as described in claim 3, characterized in that: The scraper (2) has cavities (5) arranged sequentially from top to bottom. One end of the cavity (5) passes through the concave arc surface (16). The cavity (5) is filled with CPCM phase change composite material (3).

7. The scraper chain for temperature control of phase change materials as described in claim 2, characterized in that: The pin hole (15) is hinged to the corresponding hinge joint (14) through the pin shaft (6). The insertion end of the pin shaft (6) is provided with a retaining ring (7). The retaining ring (7) is fixedly connected to the pin shaft (6) through a cylindrical pin (8).

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