CN219079960U - Five-layer paper making ash bottom white board pulp slag recycling paper machine flow system - Google Patents

Abstract

A paper machine flow system for recycling five-layer paper-making gray-bottom white board pulp slag comprises a surface layer pulp line, a lining pulp line, a core layer pulp line, a bottom lining pulp line and a bottom layer pulp line; the surface layer slurry line, the lining slurry line, the core layer slurry line, the bottom lining slurry line and the bottom layer slurry line all comprise a slurry distribution tank, a slurry forming tank, a slurry flushing pump, a first-section screen, a second-section screen, a slurry flowing tank, a first-section screen light slag channel connected with the first-section screen, a second-section screen light slag channel connected with the second-section screen, a first-section screen tail slag channel connected with the first-section screen and the second-section screen, a first-section good slurry channel connected with the slurry flowing tank and the first-section screen, a second-section good slurry channel and a second-section screen tail slag channel connected with the second-section screen, and the core layer slurry line also comprises a core layer third-section screen and a slag slurry tank; the slurry mixing tank, the slurry forming tank, the slurry flushing pump and the first-stage screen are sequentially connected through pipelines, and the second-stage screen is connected to the slurry flushing pump through a second-stage slurry channel. The utility model recovers the high-quality high-cleanliness flow slag pulp to the layer with low primary quality requirement, so that the slag pulp fiber can be utilized with high quality.

Description

Five-layer paper making ash bottom white board pulp slag recycling paper machine flow system

Technical Field

The utility model relates to the field of papermaking, in particular to a five-layer papermaking ash bottom whiteboard pulp slag recycling paper machine flow system.

Background

Five layers of manufactured gray-bottom white board paper are formed by compounding five layers of surface layers (wood pulp or 85-degree DMOW office waste paper pulp), lining layers (65-degree DIP), a core layer (mixed waste paper pulp MW), a bottom lining layer (mixed waste paper pulp MW) and a bottom layer (50-degree DIP), wherein the quality and cleanliness and whiteness requirements of the surface layer pulp, the lining layer pulp, the core layer pulp, the bottom lining pulp and the bottom layer pulp are different, and the most common method for fiber utilization rate is to recycle slag pulp generated in the production process so as to reduce fiber waste. The traditional recovery method is to uniformly discharge the slag slurry generated in each working procedure to a slag slurry tank and uniformly recover and treat the slag slurry. However, the quality, cleanliness and whiteness of the finally recovered pulp are lower by the mixed recovery method; so that the surface layer slag slurry and the core layer slag slurry with good whiteness are difficult to obtain the most efficient recycling.

Disclosure of Invention

Therefore, the utility model aims to provide a five-layer paper making ash bottom white board pulp slag recycling paper machine flow system.

A paper machine flow system for recycling five-layer paper-making gray-bottom white board pulp slag comprises a surface layer pulp line, a lining pulp line, a core layer pulp line, a bottom lining pulp line and a bottom layer pulp line; the surface layer slurry line, the lining slurry line, the core layer slurry line, the bottom lining slurry line and the bottom layer slurry line all comprise a slurry preparation tank, a slurry forming tank, a slurry flushing pump, a first-stage screen, a second-stage screen, a slurry flow box, a first-stage screen light slag channel connected with the first-stage screen, a second-stage screen light slag channel connected with the second-stage screen, a first-stage screen tail slag channel connected with the first-stage screen and the second-stage screen, a first-stage good slurry channel connected with the slurry flow box and the first-stage screen, a second-stage good slurry channel and a second-stage screen tail slag channel connected with the second-stage screen, and in addition, the core layer slurry line also comprises a core layer third-stage screen and a slag slurry tank; the slurry mixing tank, the slurry forming tank, the slurry flushing pump and the first-stage screen are sequentially connected through pipelines, and the second-stage screen is connected with the slurry flushing pump through a second-stage good slurry channel; the first section light slag channel, the second section light slag channel and the second section tail slag channel of the surface layer slurry line are all connected to a slurry pump of the surface layer slurry line; the first section light slag channel, the second section light slag channel and the second section tailing channel of the lining slurry line are all connected to the second section tailing channel of the core layer; the first section light slag channel, the second section light slag channel, the third section light slag channel and the third section tailing channel of the core layer slurry line are all connected to the slag slurry tank; the first section light slag channel and the second section light slag channel of the bottom lining layer slurry line are connected to the slag slurry tank, and the second section tailing channel is connected to the second section tailing channel of the core layer; the first section light slag channel, the second section light slag channel and the second section tail slag channel of the bottom layer slurry line are all connected to the first section tail slag channel of the bottom layer slurry line.

Further, pumps are arranged at the positions of the slurry mixing pool, the slurry forming pool, the slurry flushing pump and the connecting pipelines between the first-stage screens of the surface layer slurry line, and pumps are also arranged between the first-stage screens, the second-stage screens and the third-stage screens of the core layer slurry line.

Further, a plurality of white water trays are arranged, and the slag slurry tank is connected with the slurry distribution tank of the core layer slurry line, the slurry distribution tank of the bottom lining slurry line and the white water trays.

In summary, the five-layer pulp recycling system for manufacturing the white board pulp slag with the ash bottom can recycle the slag slurry to the production raw materials by recycling the high-quality high-cleanliness flow slag slurry to the processing layer with low primary quality requirement, thereby reducing fiber loss to a greater extent, changing waste into valuables and improving recovery rate. The practicality of this application is strong, has stronger popularization meaning.

Drawings

Fig. 1 to 3 are flow diagrams of various pulp layer pulp lines of a five-layer papermaking ash bottom whiteboard pulp dreg recycling papermaking machine flow system.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent.

As shown in fig. 1 to 3, the present utility model provides a five-layer papermaking ash-bottom whiteboard pulp residue recycling paper machine flow system, which comprises a surface layer pulp line, a lining pulp line, a core layer pulp line, a bottom lining pulp line and a bottom layer pulp line.

The surface layer slurry line comprises a surface layer slurry preparation tank, a surface layer slurry forming tank, a slurry flushing pump, a surface layer first-section screen, a surface layer second-section screen, a slurry flowing box, a surface layer first-section screen light slag channel, a surface layer second-section screen light slag channel, a surface layer first-section screen tail slag channel, a surface layer second-section slurry passing channel and a surface layer second-section screen tail slag channel. The surface layer slurry preparation tank, the surface layer slurry forming tank, the slurry flushing pump and the surface layer one-section screen are sequentially connected through pipelines, and pumps are arranged at the connecting pipeline positions. The head box is connected to the surface layer one-section screen; the first-section light slag channel of the surface layer, the second-section light slag channel of the surface layer and the second-section screen tail slag channel of the surface layer are connected to a lining slurry line; the first section of the surface layer screen tailing channel is connected to the second section of the surface layer screen. And the good pulp generated by the surface layer two-section screen flows back to the front section of the pulp pump through the surface layer two-section good pulp channel, and is sent to the surface layer one-section screen through the pulp pump.

The lining slurry line comprises a lining slurry preparation tank, a lining slurry forming tank, a slurry flushing pump, a lining first section sieve, a lining second section sieve, a lining first section sieve light slag channel, a lining second section sieve light slag channel, a lining first section tail slag channel, a lining second section tail slag channel, a lining first section good slurry channel, a lining second section good slurry channel and a slurry box, wherein the lining slurry preparation tank, the lining slurry forming tank, the slurry flushing pump and the lining first section sieve are connected through the lining first section good slurry channel and are connected with the lining first section sieve, the lining first section sieve light slag channel, the lining second section sieve light slag channel and the lining second section sieve tail slag channel are all connected to the core layer slurry line. The first-stage light slag channel, the second-stage light slag channel and the second-stage tailings channel are all connected to the front side pipeline of the lining pulp line, and the first-stage light slag screen, the second-stage light slag screen and the second-stage tailings screen are discharged into the front side pipeline of the lining pulp line and are treated by the first-stage screen.

The core layer slurry line comprises a core layer slurry preparation tank, a core layer slurry forming tank, a slurry flushing pump, a slurry flowing box, a core layer first section sieve, a core layer second section sieve, a core layer third section sieve, a slurry tank, a core layer first section sieve light slag channel, a core layer second section sieve light slag channel, a core layer third section sieve light slag channel, a core layer first section tailings channel, a core layer second section tailings channel, a core layer third section tailings channel, a core layer first section sieve good slurry channel, a core layer second section good slurry channel and a core layer third section good slurry channel. The slurry mixing tank, the slurry forming tank, the slurry flushing pump and the first section screen of the core layer are sequentially connected, the slurry flowing box is connected with the first section screen of the core layer through a slurry passing pipeline, the first section screen of the core layer is connected with the second section screen of the core layer through a tailings channel of the core layer, the second section screen of the core layer is connected with the third section screen of the core layer through a tailings channel of the second section screen of the core layer, and the third section screen of the core layer is connected with the slurry tank through a tailings channel of the third section of the core layer. The core layer two-section screen is connected to the pulp flushing pump through a core layer two-section pulp passage, and the core layer three-section screen is connected to the pump of the pipeline at the front side of the core layer two-section screen through a core layer three-section pulp passage. The lining second section tailings channel, the lining first section light slag channel and the lining second section light slag channel are all connected to the front side pipeline of the core layer three section sieve. The first section of the light slag channel of the core layer, the second section of the light slag channel of the core layer and the third section of the light slag channel of the core layer are connected to the slag slurry tank.

The bottom lining slurry line comprises a bottom lining slurry preparation tank, a slurry flushing pump, a bottom lining first section sieve, a slurry box, a bottom lining second section sieve, a bottom lining first section light sieve channel, a bottom lining second section light sieve channel, a bottom lining first section sieve residue channel, a bottom lining second section tail residue channel, a bottom lining first section good slurry channel and a bottom lining second section good slurry channel, wherein the bottom lining slurry preparation tank, the slurry flushing pump and the bottom lining first section sieve are sequentially connected, the bottom lining first section sieve is connected with the slurry box through the bottom lining first section good slurry channel, is connected with the bottom lining second section sieve through the bottom lining first section sieve residue channel, is connected with the front side pipeline of the core layer third section sieve through the bottom lining second section tail residue channel, and is connected with the slurry flushing pump through the bottom lining second section good slurry channel so as to enter the bottom lining first section sieve through the slurry flushing pump. The first section of the light slag of the bottom lining and the second section of the light slag of the bottom lining are connected to a slag slurry tank, and the slag slurry tank is connected to a bottom lining slurry mixing tank. In addition, the second-section tailings channel of the bottom lining is connected to the front side pipeline of the three-section screen of the core layer.

The bottom pulp line comprises a bottom pulp mixing tank, a bottom pulp forming tank, a pulp pump, a bottom first-section screen, a bottom second-section screen, a pulp box, a bottom first-section light slag channel, a bottom second-section light slag channel, a bottom first-section tail slag channel, a bottom second-section good pulp channel and a bottom first-section good pulp channel, wherein the bottom pulp mixing tank, the bottom pulp forming tank, the pulp pump and the bottom first-section screen are sequentially connected, and the bottom first-section screen is connected to the pulp box through the bottom first-section good pulp channel and is connected to the bottom second-section screen through the bottom first-section tail slag channel. The bottom layer second-section sieve is communicated with the pulp pump through a bottom layer second-section pulp passage, and the bottom layer second-section tailings passage, the bottom layer first-section light slag passage and the bottom layer second-section light slag passage are all connected to the passage on the front side of the bottom lining second-section sieve of the bottom lining pulp line.

In addition, the paper machine production pulp line is also provided with a white water multi-disc for concentrating pulp, and the pulp in the pulp slag groove is connected with a core layer pulp mixing tank, a bottom lining pulp mixing tank and the white water multi-disc for circularly processing and pulping.

In summary, the five-layer pulp recycling system for manufacturing the white board pulp slag with the ash bottom can recycle the slag slurry to the production raw materials by recycling the high-quality high-cleanliness flow slag slurry to the processing layer with low primary quality requirement, thereby reducing fiber loss to a greater extent, changing waste into valuables and improving recovery rate. The practicality of this application is strong, has stronger popularization meaning.

The above examples illustrate only one embodiment of the utility model, which is described in detail and is not to be construed as limiting the scope of the utility model, it being understood that variations and modifications can be made by those skilled in the art without departing from the spirit of the utility model, which is within the scope of the utility model, and the appended claims shall therefore be construed as defining the scope of the utility model.

Claims (3)

1. A five-layer papermaking ash bottom whiteboard pulp slag recycling paper machine flow system is characterized in that: comprises a surface layer slurry line, a lining slurry line, a core layer slurry line, a bottom lining slurry line and a bottom layer slurry line; the surface layer slurry line, the lining slurry line, the core layer slurry line, the bottom lining slurry line and the bottom layer slurry line all comprise a slurry preparation tank, a slurry forming tank, a slurry flushing pump, a first-stage screen, a second-stage screen, a slurry flow box, a first-stage screen light slag channel connected with the first-stage screen, a second-stage screen light slag channel connected with the second-stage screen, a first-stage screen tail slag channel connected with the first-stage screen and the second-stage screen, a first-stage good slurry channel connected with the slurry flow box and the first-stage screen, a second-stage good slurry channel and a second-stage screen tail slag channel connected with the second-stage screen, and in addition, the core layer slurry line also comprises a core layer third-stage screen and a slag slurry tank; the slurry mixing tank, the slurry forming tank, the slurry flushing pump and the first-stage screen are sequentially connected through pipelines, and the second-stage screen is connected with the slurry flushing pump through a second-stage good slurry channel; the first section light slag channel, the second section light slag channel and the second section tail slag channel of the surface layer slurry line are all connected to a slurry pump of the surface layer slurry line; the first section light slag channel, the second section light slag channel and the second section tailing channel of the lining slurry line are all connected to the second section tailing channel of the core layer; the first section light slag channel, the second section light slag channel, the third section light slag channel and the third section tailing channel of the core layer slurry line are all connected to the slag slurry tank; the first section light slag channel and the second section light slag channel of the bottom lining layer slurry line are connected to the slag slurry tank, and the second section tailing channel is connected to the second section tailing channel of the core layer; the first section light slag channel, the second section light slag channel and the second section tail slag channel of the bottom layer slurry line are all connected to the first section tail slag channel of the bottom layer slurry line.

2. The five-layer papermaking ash bottom whiteboard pulp residue recycling paper machine flow system of claim 1, wherein: pumps are arranged at the positions of connecting pipelines among the slurry mixing pool, the slurry forming pool, the slurry flushing pump and the first-stage screen of the surface layer slurry line, and pumps are also arranged among the first-stage screen, the second-stage screen and the third-stage screen of the core layer slurry line.

3. The five-layer papermaking ash bottom whiteboard pulp residue recycling paper machine flow system of claim 1, wherein: the device is characterized by further comprising a white water multi-disc, wherein the slag slurry tank is connected with the slurry mixing tank of the core layer slurry line, the slurry mixing tank of the bottom lining slurry line and the white water multi-disc.

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