Paper machine wet end hood

Abstract

The utility model belongs to the technical field of papermaking equipment, and specifically relates to a steam hood for the wet end of a paper machine. The steam hood can be movably covered on the paper machine, and an air suction pipe is connected to the inside of the steam hood. The function of the steam hood for the wet end of a paper machine is analogous to the range hood on a stove, which can exhaust the moisture from the paper machine in time and reduce the moisture content in the workshop. The steam hood for the wet end of a paper machine described in the utility model can significantly reduce the number of fans and installed capacity required for workshop ventilation by directly exhausting moisture at the source of the wet end of the paper machine, thereby reducing power consumption, achieving the goal of energy conservation and emission reduction, and reducing production costs. In addition, the steam hood is designed to be movable and multi-section telescopic, which can flexibly adapt to equipment requirements and facilitate maintenance work such as changing the screen and rollers in the wet end.

Description

Technical Field

[0001] The utility model relates to a steam cover for the wet part of a paper machine, belonging to the technical field of papermaking equipment. Background Art

[0002] At present, in the papermaking industry, the dehumidification design of the paper machine or pulp board machine wire section is generally to design a suction duct in the wet section forming wire section, but the suction duct often cannot effectively discharge moisture, and the moisture will still spread into the workshop. The moisture that spreads into the workshop is discharged through the roof or exhaust fan, and the workshop ventilation method is used to eliminate the moisture that spreads from the wet section of the paper machine to the workshop.

[0003] The papermaking workshop has a minimum exhaust frequency of 10 to 20 times per hour, but the space inside the workshop is too large, and a large number of fans are selected, with large air volume and high fan motor power. The daily power consumption is high, resulting in high production costs. Utility Model Content

[0004] In view of the above deficiencies in the prior art, the technical problem to be solved by the utility model is: to provide a steam hood for the wet part of a paper machine, which can exhaust the moisture of the paper machine in time and reduce the moisture content in the workshop.

[0005] The utility model discloses a steam hood for the wet part of a paper machine, which can be movably covered on the paper machine, and the interior of the steam hood is connected with a suction pipe.

[0006] The function of the steam hood of the wet end of a paper machine is similar to that of a stove exhaust hood, which can exhaust moisture from the paper machine in time and reduce the moisture content in the workshop.

[0007] Wherein, the steam hood can be moved along the length direction of the paper machine.

[0008] Preferably, the side of the steam hood is provided with a column, and the bottom end of the column is provided with a caster.

[0009] Furthermore, the upright post is arranged on one side of the steam hood, and the other side of the steam hood is open, and the other side is slidably arranged on the erected guide rail.

[0010] The suction pipe described in the utility model is fixed below the guide rail, on one side of the paper machine.

[0011] Preferably, the hood is of multi-section telescopic type.

[0012] The technical feature of the utility model is that it does not affect production operations, and the steam hood on the top of the paper machine can be telescopically moved, so as not to affect the maintenance work such as changing the screen and rollers in the wet section. The wet section of the paper machine has a lot of moisture, which spreads into the workshop. The moisture is discharged from the workshop through the dehumidification fans on the roof and walls. The fan has a large air volume, high energy consumption and low efficiency. The utility model directly collects and dehumidifies at the source of moisture, which is highly efficient and saves the installed capacity of the workshop ventilation fan.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The paper machine wet section steam hood of the utility model can significantly reduce the number of fans and installed capacity required for workshop ventilation by directly removing moisture at the source of the paper machine wet section, thereby reducing power consumption, achieving the goal of energy conservation and emission reduction, and reducing production costs. In addition, the steam hood is designed to be movable and multi-section telescopic, which can flexibly adapt to equipment requirements and facilitate maintenance work such as changing the screen and rollers in the wet section. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is one of the schematic diagrams showing that the steam hood does not completely cover the wet part;

[0016] Figure 2 This is the second schematic diagram showing that the steam hood does not completely cover the wet part;

[0017] Figure 3 This is one of the schematic diagrams showing that the steam hood completely covers the wet part;

[0018] Figure 4 This is the second schematic diagram showing that the steam hood completely covers the wet part.

[0019] In the figure: 1. paper machine; 2. hood; 3. column; 4. caster; 5. guide rail; 6. suction pipe; 7. drying section; 8. pressing section; 9. wet section; 10. crane. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with specific embodiments.

[0021] However, the description of the present invention is merely an embodiment of structural and even functional description, and the scope of rights of the present invention is not limited by the embodiments described in the text.

[0022] For example, multiple embodiments may have multiple changes and multiple forms, and it should be understood that the scope of rights of the present utility model includes equivalents that can realize the technical idea.

[0023] like Figures 1 to 4 As shown, this embodiment is implemented by the following technical solution: the paper machine 1 includes a drying section 7, a pressing section 8, a wet section 9, etc. which are arranged in sequence, and a crane 10 is provided on the top.

[0024] The steam hood 2 is a multi-section telescopic type, and a column 3 is provided on one side of each section of the steam hood 2. The column 3 is fixed on the supporting beam of the steam hood 2, and a caster 4 is provided at the bottom end of the column 3; the other side of the steam hood 2 is open, and the side is slidably set on the erected guide rail 5. A plurality of guide rails 5 are arranged in parallel for use by multiple sections of the steam hood 2.

[0025] Driven by a driving device (such as a chain driven by a motor), the steam hood 2 can be moved to cover the paper machine 1.

[0026] The suction pipe 6 is fixed below the guide rail 5, on one side of the paper machine 1, and is connected to the inside of the hood 2. The diameter of the suction pipe 6 is designed to keep the wind speed in the pipe at 15-20 m / s.

[0027] The utility model directly collects and dehumidifies the moisture at the source, which is highly efficient and saves the installed capacity of the workshop ventilation fan. Taking a paperboard workshop with an annual output of 500,000 tons as an example, the annual power consumption of the workshop ventilation is about 8 million yuan. After using the paper machine wire dehumidification hood, at least 4 million yuan of electricity can be saved.

[0028] Water will also drip from the inner wall of the steam hood at the wet end of the paper machine onto the wire section, causing potential impact on paper sheet formation. Workshop operators are required to wipe it clean in time when the paper machine is shut down or the product is changed.

[0029] Of course, the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and any equivalent changes and improvements made by ordinary technicians in the technical field within the essential scope of the present invention shall fall within the scope of the patent coverage of the present invention.

Claims

1. A paper machine wet end steam hood, characterized in that: The steam hood (2) is movably covered on the paper machine (1), and the interior of the steam hood (2) is connected to the air suction pipe (6); the steam hood (2) is a multi-section telescopic type, and can be moved along the length direction of the paper machine (1); The side of the steam hood (2) is provided with a column (3), the bottom end of the column (3) is provided with a caster (4), the column (3) is arranged on one side of the steam hood (2), and the other side of the steam hood (2) is open, and the other side is slidably arranged on the erected guide rail (5).

2. The wet end hood of a paper machine according to claim 1, characterized in that: The suction pipe (6) is fixed below the guide rail (5) and on one side of the paper machine (1).

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