Paper machine baffle material removal device

Abstract

This utility model relates to a material removal device for a paper machine baffle. The device includes a housing, multiple vacuum suction pipes, a vacuum filter, and a vacuum fan. The housing is mounted on the paper machine baffle, and at least its front surface has multiple openings. The multiple vacuum suction pipes are arranged sequentially along the height of the housing within the housing. Each vacuum suction pipe has multiple vacuum suction holes along its longitudinal direction. The multiple vacuum suction pipes are connected to the vacuum filter via a main pipe, and then to the vacuum fan. This utility model's material removal device for a paper machine baffle achieves the following beneficial technical effects: it reduces the formation and accumulation of starch film or starch clumps on the paper machine baffle, thereby improving the production quality and efficiency of the paper machine.

Description

Technical Field

[0001] This utility model relates to a paper machine baffle material removal device, which is mainly applied in the technical field of paper production. Background Technology

[0002] During sizing or coating operations, the sizing agent or coating material is fed between the two rolls and applied to the paper web. Due to the high speed of the paper machine, the sizing agent or coating material is often splashed out, especially starch, which, due to its large quantity, frequently atomizes and is thrown out.

[0003] Baffles are typically installed in the sizing or coating area to block the atomized starch from splashing onto the paper web and frame. At the same time, a receiving groove is usually provided on the lower edge of the baffle to prevent starch from accumulating on the baffle and flowing down onto the paper web.

[0004] However, over time, starch film or starch clumps will form on the baffle. If not cleaned for a long time, these starch film or starch clumps will accumulate and fall into the clamping area of ​​the sizing or coating rollers. This will lead to the following adverse consequences: at best, it will cause paper web tears and subsequent material sticking to the calender; at worst, it will directly cause paper breaks. If the baffle is not thoroughly cleaned when a paper break occurs, the starch film or starch clumps on the baffle will fall off more quickly after the paper is fed back in, creating a vicious cycle. Utility Model Content

[0005] One objective of this invention is to provide a paper machine baffle material removal device that overcomes the deficiencies of the prior art, reduces the formation and accumulation of starch film or starch glue on the paper machine baffle, and improves the production quality and efficiency of the paper machine.

[0006] The above-mentioned objectives of this utility model are achieved by a paper machine baffle material removal device, which includes a housing, multiple vacuum suction pipes, a vacuum filter, and a vacuum fan.

[0007] The box is mounted on the baffle of the paper machine, and at least the front surface of the box has multiple openings. Multiple vacuum suction pipes are arranged sequentially in the box along the height direction. Each vacuum suction pipe has multiple vacuum suction holes along its longitudinal direction. The multiple vacuum suction pipes are connected to the vacuum filter via a main pipe, and then connected to the vacuum blower.

[0008] According to the above technical solution, the paper machine baffle material removal device of this utility model can achieve the following beneficial technical effects: it can reduce the formation and accumulation of starch film or starch glue on the paper machine baffle, and improve the production quality and efficiency of the paper machine.

[0009] Preferably, the paper machine baffle material removal device further includes a vacuum pressure gauge, which is installed on the main pipe to monitor the vacuum negative pressure on the main pipe.

[0010] According to the above technical solution, the paper machine baffle material removal device of this utility model can achieve the following beneficial technical effects: it can monitor the vacuum negative pressure on the main pipe in real time. If the vacuum negative pressure is detected to drop to a certain threshold, the filter screen of the vacuum filter needs to be replaced to ensure sufficient negative pressure.

[0011] Preferably, the paper machine baffle material removal device further includes a cleaning water pipe, which is installed on the top of the housing and connected to a cleaning water source. Multiple cleaning nozzles are installed sequentially along the longitudinal direction of the pipe for cleaning the inside of the housing.

[0012] According to the above technical solution, the paper machine baffle material removal device of this utility model can achieve the following beneficial technical effects: it can save cleaning time when the paper breaks, and at the same time prevent starch film blocks or starch glue blocks from falling off after the paper is fed.

[0013] Preferably, a first valve is also provided between the vacuum filter and the vacuum blower.

[0014] According to the above technical solution, the paper machine baffle material removal device of this utility model can achieve the following beneficial technical effects: by closing or opening the first valve, the connection between the vacuum filter and the vacuum blower can be shut off or opened in a timely manner.

[0015] Preferably, a second valve is also provided between the cleaning water pipe and the cleaning water source.

[0016] According to the above technical solution, the paper machine baffle material removal device of this utility model can achieve the following beneficial technical effects: by closing or opening the second valve, the connection between the cleaning water pipe and the cleaning water source can be shut off or opened in a timely manner.

[0017] Preferably, the thickness of the box body is 3 to 4 centimeters.

[0018] According to the above technical solution, the paper machine baffle material removal device of this utility model can achieve the following beneficial technical effects: with a suitable box thickness, on the one hand, it is suitable to set multiple vacuum suction pipes in the box, and on the other hand, it reduces the space occupied by the entire paper machine baffle material removal device, so as not to affect the normal production of the paper machine.

[0019] Preferably, the number of the multiple vacuum suction tubes is 4 to 6.

[0020] According to the above technical solution, the paper machine baffle material removal device of this utility model can achieve the following beneficial technical effects: by using an appropriate number of vacuum suction pipes, it can fully suction the sizing agent or coating that splashes into the box, further reducing the formation and accumulation of starch film or starch glue on the paper machine baffle.

[0021] Preferably, the plurality of vacuum suction holes are evenly spaced on each vacuum suction tube, with a spacing of 5 to 8 centimeters.

[0022] According to the above technical solution, the paper machine baffle material removal device of this utility model can achieve the following beneficial technical effects: by using appropriate vacuum suction hole intervals, it can fully suction the sizing agent or coating that splashes into the box, further reducing the formation and accumulation of starch film or starch glue blocks on the paper machine baffle.

[0023] Preferably, the vacuum blower provides a vacuum negative pressure of 3 to 4 kPa.

[0024] According to the above technical solution, the paper machine baffle material removal device of this utility model can achieve the following beneficial technical effects: the vacuum fan can provide a suitable vacuum negative pressure to fully suck up the sizing agent or coating that splashes into the box, while not affecting the normal production of the paper machine.

[0025] Preferably, the water source for cleaning has a pressure of 350–450 kPa and a temperature of 55–60 degrees Celsius.

[0026] According to the above technical solution, the paper machine baffle material removal device of this utility model can achieve the following beneficial technical effects: by using appropriate water pressure and water temperature, it can fully clean the inside of the box when the paper is cut, saving cleaning time and improving cleaning efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the housing in the paper machine baffle material removal device according to an embodiment of the present invention.

[0028] Figure 2 This is a schematic diagram of a paper machine baffle material removal device according to an embodiment of the present invention.

[0029] List of reference numerals in the attached diagram:

[0030] 1. Box

[0031] 2. Vacuum suction tube

[0032] 3. Vacuum filter

[0033] 4. Vacuum blower

[0034] 5. Vacuum suction port

[0035] 6. Vacuum pressure gauge

[0036] 7. Clean the water pipes

[0037] 8. Clean the nozzle

[0038] 9. Baffle receiving groove

[0039] 11. First valve

[0040] 12. Second valve

[0041] L, the length of the box

[0042] H. Height of the enclosure

[0043] T, thickness of the enclosure Detailed Implementation

[0044] The following describes specific embodiments of this utility model. It should be noted that, in order to provide a concise description, this specification cannot provide a detailed description of all features of the actual embodiments. It should be understood that, in the actual implementation of any embodiment, just as in any engineering or design project, various specific decisions are often made to achieve the developer's specific goals and to meet system-related or business-related constraints, and this can change from one embodiment to another. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this utility model, some design, manufacturing, or production modifications based on the technical content disclosed in this disclosure are merely conventional technical means and should not be construed as insufficient content of this disclosure.

[0045] Unless otherwise defined, the technical or scientific terms used in the claims and description shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar words used in the specification and claims of this utility model patent application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar words do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar words mean that the element or object preceding "comprising" or "including" encompasses the element or object listed following "comprising" or "including" and its equivalents, and do not exclude other elements or objects. The terms "connected" or "linked" and similar words are not limited to physical or mechanical connections, nor are they limited to direct or indirect connections.

[0046] In the following description, in order to clearly demonstrate the structure and working method of this utility model, a number of directional terms will be used. However, terms such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and not as limiting terms.

[0047] Figure 1 This is a schematic diagram of the housing in the paper machine baffle material removal device according to an embodiment of the present invention. Figure 2 This is a schematic diagram of a paper machine baffle material removal device according to an embodiment of this utility model. Figures 1 to 2 As shown, a paper machine baffle material removal device according to an embodiment of the present invention includes a housing 1, multiple vacuum suction pipes 2, a vacuum filter 3, and a vacuum fan 4;

[0048] The box 1 is installed on the baffle of the paper machine, and at least the front surface of the box 1 (i.e. the surface facing the splashed sizing agent or coating) has multiple openings. Multiple vacuum suction pipes 2 are arranged in sequence inside the box 1 along the height direction of the box. Each vacuum suction pipe 2 has multiple vacuum suction holes 5 in sequence along the longitudinal direction of the pipe. The multiple vacuum suction pipes 2 are connected to the vacuum filter 3 through the main pipe, and then connected to the vacuum blower 4.

[0049] According to the above technical solution, the paper machine baffle material removal device of this utility model can achieve the following beneficial technical effects: it can reduce the formation and accumulation of starch film or starch glue on the paper machine baffle, and improve the production quality and efficiency of the paper machine.

[0050] Specifically, the sizing agent or coating that would normally splash onto the paper machine baffle will splash into the box, and most of the splashed sizing agent or coating will be sucked away by vacuum suction pipes, vacuum filters and vacuum blowers. Only a small portion of the splashed sizing agent or coating will remain in the box, thus reducing the formation and accumulation of starch film or starch glue on the paper machine baffle. Moreover, the probability of starch film or starch glue falling into the clamping area of ​​the sizing or coating roll is greatly reduced, which in turn greatly reduces the probability of paper web breakage and calender sticking, thus improving the production quality of the paper machine. Due to the reduction in the number of paper breaks, the production efficiency of the paper machine is also improved.

[0051] In some embodiments, such as Figure 2 As shown, the paper machine baffle removal device also includes a vacuum gauge 6, which is installed on the main pipe to monitor the vacuum negative pressure on the main pipe. According to the above technical solution, the paper machine baffle removal device of this utility model can achieve the following beneficial technical effects: it can monitor the vacuum negative pressure on the main pipe in real time; if the vacuum negative pressure drops to a certain threshold, the vacuum filter screen needs to be replaced to ensure sufficient negative pressure.

[0052] In some embodiments, such as Figure 2 As shown, the paper machine baffle material removal device also includes a cleaning water pipe 7, which is installed on the top of the housing 1 and connected to a cleaning water source. Multiple cleaning nozzles 8 are sequentially installed along the longitudinal direction of the pipe for cleaning the interior of the housing 1. According to the above technical solution, the paper machine baffle material removal device of this utility model can achieve the following beneficial technical effects: it can save cleaning time when paper breaks, and at the same time prevent starch film or starch glue blocks from falling off after paper feeding.

[0053] Preferably, such as Figure 2 As shown, the opening direction of the vacuum suction hole 5 is facing forward (i.e., towards the splashed adhesive or paint); the water spray direction of the cleaning nozzle 8 is facing downward (i.e., towards the bottom of the cleaning water pipe).

[0054] In some embodiments, such as Figure 2 As shown, a first valve 11 is also provided between the vacuum filter 3 and the vacuum blower 4. According to the above technical solution, the paper machine baffle material removal device of this utility model can achieve the following beneficial technical effects: by closing or opening the first valve, the connection between the vacuum filter and the vacuum blower can be shut off or opened in a timely manner.

[0055] In some embodiments, such as Figure 2 As shown, a second valve 12 is also provided between the cleaning water pipe 7 and the cleaning water source. According to the above technical solution, the paper machine baffle material removal device of this utility model can achieve the following beneficial technical effects: by closing or opening the second valve, the connection between the cleaning water pipe and the cleaning water source can be shut off or opened in a timely manner.

[0056] Preferably, such as Figure 2 As shown, during normal paper machine operation, the first valve 11 remains open and the second valve 12 remains closed. Therefore, most of the splashed sizing agent or coating is sucked away by the vacuum suction pipe 2, vacuum filter 3, and vacuum fan 4, and the interior of the housing 1 is not cleaned during this time. When the paper machine stops or the paper runs out, the first valve 11 can be closed and the second valve 12 opened to shut off the suction process, allowing the interior of the housing 1 to be cleaned. During paper feeding, the second valve 12 is closed, and after the paper is fed, the first valve 11 is opened for normal paper machine operation.

[0057] In some embodiments, such as Figure 1 As shown, the thickness T of the box 1 is 3-4 cm. According to the above technical solution, the paper machine baffle material removal device of this utility model can achieve the following beneficial technical effects: with a suitable box thickness, on the one hand, it is suitable to set multiple vacuum suction pipes inside the box, and on the other hand, it reduces the space occupied by the entire paper machine baffle material removal device, so as not to affect the normal production of the paper machine.

[0058] Preferably, such as Figure 1 As shown, the length L and height H of the box 1 are basically the same as the length and height of the paper machine baffle, so the box 1 basically covers the baffle. For example, the length L of the box 1 is about 10 meters and the height H of the box 1 is about 2.5 meters.

[0059] Preferably, such as Figure 1 As shown, the housing 1 is made of metal sheet. More preferably, the housing 1 is made of galvanized steel sheet. Even more preferably, the metal sheet of the housing 1 is a perforated metal sheet. Preferably, the diameter of the openings on the housing 1 is approximately 8 millimeters.

[0060] Preferably, such as Figure 2 As shown, the bottom of the box 1 is open and does not need to be sealed with a metal plate, which makes it easy for the starch film blocks or starch glue blocks inside the box 1 to fall into the baffle receiving groove 9 below the box 1.

[0061] In some embodiments, such as Figure 2 As shown, the number of vacuum suction tubes 2 is 4 to 6. According to the above technical solution, the paper machine baffle material removal device of this utility model can achieve the following beneficial technical effects: by using an appropriate number of vacuum suction tubes, the sizing agent or coating splashed into the box can be fully suctioned, further reducing the formation and accumulation of starch film or starch glue on the paper machine baffle.

[0062] Preferably, such as Figure 2 As shown, the multiple vacuum suction tubes 2 are arranged in parallel.

[0063] Preferably, such as Figure 2 As shown, the multiple vacuum suction tubes 2 are evenly spaced along the height direction of the box.

[0064] Preferably, the vacuum suction tube 2 is a 4-point or 6-point tube. A 4-point tube is a DN15 tube with a nominal diameter of 15 mm; a 6-point tube is a DN20 tube with a nominal diameter of 20 mm.

[0065] Preferably, the diameter of the vacuum suction port 5 is about 2 mm to about 3 mm.

[0066] Ideally, the cleaning water pipe 7 should also be a 4-point or 6-point pipe.

[0067] Preferably, the diameter of the water outlet of the cleaning water pipe 7 (i.e., the interface size with the cleaning nozzle) is approximately 6.35 mm.

[0068] In some embodiments, such as Figure 2As shown, multiple vacuum suction holes 5 are evenly spaced on each vacuum suction tube 2, with a spacing of 5 to 8 centimeters. According to the above technical solution, the paper machine baffle material removal device of this utility model can achieve the following beneficial technical effects: through appropriate vacuum suction hole spacing, it can fully suction out sizing agents or coatings splashed into the box, further reducing the formation and accumulation of starch film or starch glue lumps on the paper machine baffle.

[0069] Preferably, such as Figure 2 As shown, multiple cleaning nozzles 8 are evenly spaced on the cleaning water pipe 7, with a spacing range of 15 to 20 centimeters.

[0070] Preferably, the cleaning nozzle 8 is a nozzle with a pipe diameter of 2 points, that is, a nozzle with a nominal diameter of 8 millimeters.

[0071] In some embodiments, such as Figure 2 As shown, the absolute value of the vacuum negative pressure provided by the vacuum blower 4 is 3-4 kPa. According to the above technical solution, the paper machine baffle material removal device of this utility model can achieve the following beneficial technical effects: the vacuum blower can provide a suitable vacuum negative pressure to fully suck up the sizing agent or coating splashed into the box, while not affecting the normal production of the paper machine.

[0072] In some embodiments, such as Figure 2 As shown, the water source pressure for cleaning is 350–450 kPa, and the water temperature is 55–60 degrees Celsius. According to the above technical solution, the paper machine baffle material removal device of this utility model can achieve the following beneficial technical effects: by using appropriate water pressure and temperature, it can thoroughly clean the inside of the box when paper breaks, saving cleaning time and improving cleaning efficiency.

[0073] The specific embodiments of this utility model have been described above. However, those skilled in the art will understand that the above specific embodiments do not constitute a limitation on this utility model. Those skilled in the art can make various modifications based on the above disclosure without exceeding the scope of this utility model.

Claims

1. A paper machine apron material removal device characterized by, The paper machine baffle removal device includes a housing (1), multiple vacuum suction pipes (2), a vacuum filter (3), and a vacuum fan (4); The box (1) is installed on the baffle of the paper machine, and at least the front surface of the box (1) is provided with a plurality of openings. The plurality of vacuum suction pipes (2) are arranged in sequence in the box (1) along the height direction of the box. Each vacuum suction pipe (2) is provided with a plurality of vacuum suction holes (5) along the longitudinal direction of the pipe. The plurality of vacuum suction pipes (2) are connected to the vacuum filter (3) via a main pipe, and then connected to the vacuum blower (4).

2. The paper machine former barrier material removal apparatus of claim 1 wherein, The paper machine baffle material removal device also includes a vacuum pressure gauge (6), which is installed on the main pipe to monitor the vacuum negative pressure on the main pipe.

3. The paper machine former barrier material removal apparatus of claim 1 wherein, The paper machine baffle material removal device also includes a cleaning water pipe (7), which is installed on the top of the box (1), connected to a cleaning water source, and has multiple cleaning nozzles (8) installed in sequence along the longitudinal direction of the pipe for cleaning the inside of the box (1).

4. The paper machine baffle material removal device as described in claim 1, characterized in that, A first valve (11) is also provided between the vacuum filter (3) and the vacuum blower (4).

5. The paper machine baffle material removal device as described in claim 3, characterized in that, A second valve (12) is also provided between the cleaning water pipe (7) and the cleaning water source.

6. The paper machine baffle material removal device as described in claim 1, characterized in that, The thickness of the box (1) is 3 to 4 centimeters.

7. The paper machine baffle material removal device as described in claim 1, characterized in that, The number of the multiple vacuum suction tubes (2) is 4 to 6.

8. The paper machine baffle material removal device as described in claim 1, characterized in that, The plurality of vacuum suction holes (5) are evenly spaced on each vacuum suction tube (2), with a spacing of 5 to 8 centimeters.

9. The paper machine baffle material removal device as described in claim 1, characterized in that, The vacuum blower (4) provides a vacuum negative pressure of 3 to 4 kPa.

10. The paper machine baffle material removal device as described in claim 3, characterized in that, The water source for cleaning has a pressure of 350–450 kPa and a temperature of 55–60 degrees Celsius.

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