Sediment removing device for papermaking equipment and papermaking equipment

Abstract

A sediment removal device for a papermaking apparatus and a papermaking apparatus, the device for a windlass of the papermaking apparatus, the windlass having a windlass end face, the sediment removal device comprising a scraper member and a spray member, the spray member comprising a fluid source and a nozzle, the scraper member being mounted above the windlass end face, the nozzle being mounted on the windlass end face, and the nozzle being mounted on the windlass end face. And a nozzle of the spraying part is configured to spray vaporific fluid from the fluid source towards the end face of the windlass. The papermaking equipment comprises the sediment removal device for the papermaking equipment.

Description

Technical Field

[0001] The utility model belongs to the papermaking technology, and in particular relates to a sediment removing device for papermaking equipment and the papermaking equipment. Background Art

[0002] In the papermaking process, the surface of the paper web is usually coated to increase the opacity, smoothness, brightness or color of the paper.

[0003] In this coating process, paper starch is usually used. Paper starch can be used as a reinforcing agent for pulp to enhance the strength and toughness of paper, and can also be used as a coating binder and / or adhesive for paper to improve the texture of paper and improve the smoothness of the paper surface.

[0004] Typically, starch is sprayed onto paper conveyed via a reel through a starch spraying device to form a thin film on the surface of the paper to make the surface of the paper smoother and flatter.

[0005] Since starch is sprayed onto the paper on the reel in the form of a spray, during the normal operation of the papermaking equipment, the end surface of the reel will inevitably remain and accumulate sediments such as starch gelling. When a certain amount of sediment accumulates, the sediment will be thrown out, which may be thrown onto the paper, causing impact on the paper and causing paper breakage or adhering to the paper and causing air breakage. Even if the paper is not damaged, the sediment will then adhere to the cooling reel when passing through the calender together with the paper, causing quality problems such as paper indentation. Furthermore, if the amount of sediment is too much, it may also damage the surface of the cooling reel.

[0006] Furthermore, if the papermaking equipment is shut down to clean up the deposits, such a shutdown would result in a significant loss of efficiency, which is generally undesirable.

[0007] Therefore, it is currently desired to design a deposit removal device for a papermaking machine to solve or at least alleviate some of the above-mentioned problems while the papermaking machine is in operation. Utility Model Content

[0008] In order to solve the problem that the sediment is thrown out to cause paper damage and affect the paper quality, the utility model designs a sediment removal device for papermaking equipment. This device is used for the reel of the papermaking equipment and can soften the sediment on the end surface of the reel and scrape off the sediment at the same time, thereby reducing the problems of paper breakage and air breakage caused by the sediment and hardly affecting the operation of the equipment.

[0009] Specifically, the deposit removal device comprises a scraper component and a spray component, the spray component comprising a fluid source and a nozzle, wherein the scraper component is installed above the reel end surface, and the nozzle of the spray component is configured to spray a mist fluid from the fluid source toward the reel end surface.

[0010] In an embodiment of the utility model, the scraper component comprises a scraper body close to the end surface of the reel and a scraper seat away from the end surface of the reel. The scraper seat is configured to fix the scraper body.

[0011] Preferably, the scraper component is installed perpendicular to the reel end face and points to the center of the reel end face along the length direction of the scraper seat. In this way, the scraper body always contacts and scrapes off the deposits with the largest cross-sectional area, thereby increasing the scraping amount of the deposits.

[0012] In the embodiment of the utility model, the length of the scraper seat of the scraper component is 350 mm, the length of the scraper body of the scraper component is 300 mm, and the width of the scraper body is 120 mm. Such a size of the scraper component can better achieve the scraping of sediments.

[0013] In an embodiment of the present invention, the scraper component is made of polyester material, so that the scraper component is light and not easily damaged.

[0014] In the embodiment of the utility model, the scraper component uses a lock to fix the scraper body and the scraper seat.

[0015] In an embodiment of the utility model, the nozzle of the spraying component is installed below the scraper component. Thus, the nozzle can soften the deposits first, so as to scrape off the deposits.

[0016] In an embodiment of the utility model, the spray component includes a spray pipe, which is connected between the nozzle and the fluid source. The spray pipe can adopt an existing water pipe to take water out of the water pipe.

[0017] In an embodiment of the utility model, the spraying part includes two nozzles, and the two nozzles are arranged at intervals along the length of the scraper seat. This design can make the nozzles soften the deposits of a larger area more evenly, making it easier to scrape off more deposits.

[0018] The utility model also relates to a papermaking device, which comprises a reel and any one of the above-mentioned sediment removing devices.

[0019] Additional features and advantages of the described deposit removal apparatus for papermaking equipment will be set forth in the detailed description that follows, and will become apparent to those skilled in the art from the following or will be recognized by those skilled in the art from practicing the embodiments described herein, including the following detailed description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] With reference to the above purposes, the technical features of the present invention are clearly described in the following embodiments, and its advantages are apparent from the following detailed description with reference to the accompanying drawings, which illustrate preferred embodiments of the present invention by way of example without limiting the scope of the present invention.

[0021] Figure 1 A schematic diagram showing a reel of a papermaking device viewed from the end face of the reel, and a sediment removal device for a papermaking device according to an embodiment of the utility model; and

[0022] Figure 2 A schematic diagram of a scraper component of a deposit removal device for a papermaking device according to an embodiment of the utility model is shown.

[0023] Reference numerals:

[0024] 1 reel

[0025] 2 reel end face

[0026] 3 Scraper parts

[0027] 4 Nozzles

[0028] 5 Scraper body

[0029] 6 Scraper seat

[0030] 7 Lock

[0031] 8Fixed rod DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings so as to provide a clearer understanding of the purpose, features and advantages of the present invention.

[0033] As used herein, the "length" of a blade component is the length of each edge along the largest plane of each component of the blade.

[0034] The directional terms "upper" or "lower" etc. used herein are defined along the direction perpendicular to the end surface of the reel.

[0035] Figure 1 The reel of a papermaking machine is shown with a deposit removal device for a papermaking machine for the reel 1, which has a reel end face 2, which is the surface on the operating side. The reel end face 2 is substantially circular. The deposit removal device is mounted above the reel end face 2. During the rotation of the reel end face 2, the deposit removal device is preferably fixed, but in other embodiments it can also move as long as it is not stationary relative to the reel end face 2.

[0036] Reference Figure 1The deposit removal device includes a scraper component 3 and a spray component with a nozzle 4. The nozzle 4 of the spray component is connected to a fluid source (not shown) and is configured to spray a mist fluid (e.g., water) from the fluid source toward the reel end surface 2 to soften the deposits formed on the reel end surface 2. At the same time, the scraper component 3 installed above the reel end surface 2 is used to scrape the deposits from the reel end surface 2. The scraped deposits may fall directly from the scraper component 3, or may adhere to the scraper component 3 until a sufficiently large weight is accumulated, and then fall from the scraper component 3. In short, the deposits scraped by the scraper component 3 are no longer likely to be thrown onto the paper, thereby participating in the papermaking process, and thus will not cause paper breakage, air breakage, or affect subsequent processes.

[0037] It should be understood by those skilled in the art that, although only the deposit removal device on the reel end face 2 of one reel is shown, it is preferable to install the deposit removal device on any reel end face 2 of the coating reel to achieve the effect of removing deposits.

[0038] The scraper part and the spray part will be described separately below.

[0039] Reference Figure 1 And further refer to Figure 2 , the scraper component 3 is made of polyester material, so that the scraper component 3 is light and not easy to damage. The scraper component 3 includes a scraper body 5 close to the end face of the reel and a scraper seat 6 away from the end face of the reel 2, and the scraper body 5 is configured to contact and scrape off the deposits. In this embodiment, the scraper body 5 of the scraper component 3 is in the shape of a flat rectangle, so that the force of the scraper body 5 is relatively balanced and not biased to one side, thereby increasing the service life of the scraper body 5. It should be understood by those skilled in the art that the shape of the scraper component 3 can also be other axisymmetric shapes, or can be any shape, and even the scraper body 5 can be not flat along its length (for example, bent or twisted in a plane parallel to the end face of the reel 2), as long as the scraper body 5 can contact and scrape off the deposits.

[0040] The scraper seat 6 may be a panel fixed to the scraper body 5 via a fixing member. For example, the scraper member 3 is fixed by a lock 7 such as a screw lock located at the scraper body 5. Specifically, the scraper body 5 may have a groove, and the scraper seat 6 may have a hole at a corresponding position. The screw may pass through the groove and the hole to press the scraper body 5 and the scraper seat 6 together (refer to Figure 2 ).

[0041] The scraper seat 6 may also be a component having a receiving groove, the receiving groove receiving the scraper body 5 therein, and a lock such as a screw lock lock fixes the scraper body 5 in the receiving groove.

[0042] The length of the scraper seat 6 can be greater than the length of the scraper body 5. Of course, in other cases, the length of the scraper seat 6 can be equal to or even less than the length of the scraper body 5, which will not cause the scraper component 3 to lose the ability to scrape off deposits.

[0043] The scraper seat 6 also has a fixing rod 8 which extends from the scraper seat 6 out of the reel end face 2 for fixing to a fixing device (not shown), for example a fixing device located on the operating side of the reel.

[0044] In the embodiment where the scraper body 5 of the scraper member 3 is rectangular in shape, the length of the scraper seat 6 of the scraper member 3 is preferably 350 mm (not considering the length of the fixing rod 8), the length of the scraper body 5 of the scraper member 3 is preferably 300 mm, and the width of the scraper member 3 is preferably 120 mm. Tests have shown that the size of such a scraper member 3 can smoothly achieve the scraping of deposits during the long-term operation of the equipment. Of course, other lengths are also feasible, for example, the length of the scraper body 5 can be 250 mm and the width can be 100 mm.

[0045] Preferably, the scraper member 3 is installed perpendicular to the reel end face 2 and points to the center (i.e., the center of the circle) of the reel end face 2 along the length direction of the scraper seat 6. This orientation allows the scraper member 3 to always contact and scrape off the deposits with the largest cross-sectional area when the reel end face 2 rotates, thereby increasing the scraping amount. It should be understood that in other suboptimal situations, the scraper member 3 may not be perpendicular to the reel end face 2, but may be at a certain angle relative to the reel end face 2, and may deviate from the center of the reel end face 2 along the length direction of the scraper seat 6, and these situations are also within the scope of the present invention.

[0046] After the deposits are scraped off from the reel end surface 2 by the scraper member 3, the scraped deposits will enter a collecting tray arranged below the machine including the reel, and then enter the coating and spreading machine of the machine through the collecting tray.

[0047] In addition, despite the Figure 1-2 In the figure, one scraper member 3 is shown, but those skilled in the art will appreciate that two or more scraper members 3 may be installed as needed. For example, the scraper members 3 may be arranged at equal angles on the reel end face 2 to scrape more efficiently.

[0048] Return to reference Figure 1 , the nozzle 4 of the spraying part is installed below the scraper part 3. Thus, the nozzle 4 can first spray the sediment to soften the sediment, and then the softened sediment is scraped off by the scraper part 3, thereby improving the scraping efficiency. Of course, the nozzle 4 can also be installed at other positions. For example, the nozzle 4 can be fixed at a position on the reel end surface 2 away from the scraper part 3.

[0049] In another possible embodiment, the nozzle 4 can be installed to be directly fixed in the scraper component 3 and facing the end surface 2 of the reel.

[0050] Optionally, the spraying component may include a spray pipe (not shown) connected between the nozzle 4 and the fluid source to deliver the fluid from the fluid source to the nozzle. In this embodiment, the fluid source is water as described above, the spray pipe may use an existing water pipe to take water out of the water pipe, and the nozzle 4 may spray water mist toward the sediment.

[0051] As shown, the spraying part includes two nozzles 4, which can be arranged spaced apart along the length of the scraper seat 6. In a preferred embodiment, the two nozzles 4 can be arranged symmetrically relative to the scraper part 3. The design using two nozzles 4 can make the nozzles 4 soften a larger area of ​​deposits more evenly, making it easier to scrape off more deposits. Note that in other embodiments, more or fewer nozzles, such as one or three nozzles, can be used.

[0052] The utility model relates to a sediment removing device, which can use a spraying component to soften the sediment on the end surface of a reel, and can use a scraper component to scrape away the softened sediment, thereby reducing problems such as paper breakage, air breakage, paper quality degradation, and cooling reel damage caused by the sediment being thrown out, and has a beneficial effect on the smooth operation of the equipment.

[0053] The utility model also relates to a papermaking device, which comprises a reel and a sediment removing device as described in any one of the above embodiments.

[0054] Although the structure of the utility model is described above in conjunction with the preferred embodiment, it should be recognized by those skilled in the art that the above examples are only for illustration and cannot be used as a limitation of the utility model. Therefore, the utility model can be modified and varied, and these modifications and variations will fall within the scope of this application.

Claims

1. A sediment removal device for a papermaking machine, used for a reel (1) of the papermaking machine, the reel having a reel end surface, characterized in that: The deposit removal device for papermaking equipment comprises a scraper component (3) and a spray component, wherein the spray component comprises a fluid source and a nozzle (4), wherein the scraper component (3) is installed above the reel end surface (2), and the nozzle (4) of the spray component is configured to spray a mist of fluid from the fluid source toward the reel end surface (2).

2. The deposit removal device for papermaking equipment according to claim 1, characterized in that: The scraper component (3) comprises a scraper body (5) close to the end surface of the reel and a scraper seat (6) away from the end surface of the reel, and the scraper seat (6) is configured to fix the scraper body (5).

3. The deposit removal device for papermaking equipment according to claim 2, characterized in that: The scraper component (3) is installed perpendicular to the reel end surface and points to the center of the reel end surface along the length direction of the scraper seat (6).

4. The deposit removal device for papermaking equipment according to claim 2, characterized in that: The length of the scraper seat (6) of the scraper component (3) is 350 mm, the length of the scraper body (5) of the scraper component (3) is 300 mm, and the width of the scraper body (5) is 120 mm.

5. The deposit removal device for papermaking equipment according to claim 1, characterized in that: The scraper component (3) is made of polyester material.

6. The deposit removal device for papermaking equipment according to claim 2, characterized in that: The scraper component (3) uses a lock (7) to fix the scraper body (5) and the scraper seat (6).

7. The deposit removal device for papermaking equipment according to claim 2, characterized in that: The nozzle (4) of the spraying component is installed below the scraper seat (6).

8. The deposit removal device for papermaking equipment according to claim 1, characterized in that: The spray component comprises a spray pipe, which is connected between the nozzle (4) and the fluid source.

9. The deposit removal device for papermaking equipment according to claim 2, characterized in that: The spraying component comprises two nozzles (4), which are arranged at intervals along the length of the scraper seat (6).

10. A papermaking device, characterized in that: The papermaking equipment comprises a reel (1) and a deposit removal device for a papermaking equipment according to any one of claims 1 to 9.

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