CN208395570U - A kind of paper machine vacuum preloading vacuum roller arrangement - Google Patents

Abstract

The utility model discloses a kind of paper machine vacuum preloading vacuum roller arrangements, including deflector roll, felt, vacuum furnace and sink, the felt is successively across around deflector roll and vacuum furnace, the side of the vacuum furnace towards deflector roll is provided with suction roll and squeeze roll therewith side by side, the suction roll is made of the water absorption layer of core roller and covering core roller surface, the core roller and squeeze roll both ends pass through bearing respectively and are rotationally connected with bracket, the outer wall spacing of the core roller and vacuum furnace, squeeze roll is less than the thickness of water absorption layer, and the sink is located at the lower section of vacuum furnace and suction roll and squeeze roll.The water absorption layer of suction roll is extruded fitting vacuum roller surface, absorbs the water of vacuum roller surface, falls into most water extrusion by squeeze roll and is bonded vacuum furnace water absorbent surface after sink again, and so on；Suction roll is acted under the drive of vacuum furnace by frictional force and is rotated, while squeeze roll being driven to rotate, abrasion all very littles, and will not wear felt, does not influence its service life.

Description

A kind of paper machine vacuum preloading vacuum roller arrangement

Technical field

The utility model relates to paper machine fields, and in particular to a kind of paper machine vacuum preloading vacuum roller arrangement.

Background technique

Vacuum preloading vacuum roller arrangement is the critical elements of wet end of machine dehydration, and the quality of wet end dehydration is directly related to life Produce the height of cost；Vacuum furnace detaches the moisture content in page by vacuumizing, and the water of some can be remained on roll body, true Under the centrifugal force effect that empty roller high-speed rotation generates, remaining water can be thrown on felt, increase the water content of felt, in turn The load of vacuum pump is increased, and the moisture content in page can also rise with it, the cost of page drying also correspondingly increases.

The Chinese utility model patent of Publication No. " 202849864U " discloses a kind of paper machine vacuum preloading vacuum furnace dress It sets, including deflector roll, baffle, scrapes water knife, vacuum furnace and sink, deflector roll is located at the side of vacuum furnace, and sink is located under vacuum furnace Portion, the knife rest and baffle for scraping water knife are located on sink and between deflector roll and vacuum furnace, are scraped water knife and are mutually connected with vacuum furnace, gear Board position, which is higher than, scrapes water cutter position.The remaining moisture content of vacuum furnace is struck off by scraping water knife, the water for being generated centrifugation by baffle Part is blocked, in this way, the water content of felt reduces, the moisture content in page also declines therewith, is beneficial to energy conservation consumption reduction, improves product matter Amount.

It remains static due to scraping water knife, sliding friction shape is between the edge of a knife and vacuum furnace being mutually connected with vacuum furnace State, serious wear scrape water effect worse and worse；It and is also sliding friction, the abrasion meeting of generation between baffle upper end and felt Influence the service life of felt.

Summary of the invention

The technical problem to be solved by the present invention is to provide a kind of paper machine vacuum preloading vacuum roller arrangement, can solve existing There are scraping between water knife and vacuum furnace and being sliding friction between baffle and felt for paper machine vacuum preloading vacuum roller arrangement, abrasion Serious problem.

The utility model is achieved through the following technical solutions:

A kind of paper machine vacuum preloading vacuum roller arrangement, including deflector roll, felt, vacuum furnace and sink, the felt successively across Around deflector roll and vacuum furnace, the side of the vacuum furnace towards deflector roll is provided with suction roll and squeeze roll therewith side by side, described Suction roll is made of the water absorption layer of core roller and covering core roller surface, and the core roller and squeeze roll both ends are rotated by bearing connect respectively It is connected to bracket, the outer wall spacing of the core roller and vacuum furnace, squeeze roll is less than the thickness of water absorption layer, and the sink is located at vacuum furnace And the lower section of suction roll and squeeze roll.

The further scheme of the utility model is, the squeeze roll be it is hollow tubular, multiple connections are provided on tube wall One end of the suction hole of its inner cavity, the squeeze roll connects outlet pipe and vacuum tube, the outlet pipe connection by rotary joint The water tank of sealing, the vacuum tube are connected to vacuum plant；Squeeze roll is negative by vacuum while water absorption layer on squeezing suction roll Pressure draws the moisture in water absorption layer, improves the aridity of water absorption layer, and then improve the effect to absorb water to vacuum furnace.

The further scheme of the utility model is that the outlet pipe extends downwardly, and the vacuum tube upwardly extends, and is realized Gas and water separation, avoids water from influencing the effect and service life of vacuum plant.

The further scheme of the utility model is that the water absorption layer is coated by sponge or absorbent cloth and formed, cheap, is torn open Dress is convenient.

The utility model compared with prior art the advantages of be:

The water absorption layer of suction roll is extruded fitting vacuum roller surface, absorbs the water of vacuum roller surface, by squeeze roll by big portion The water extrusion divided is fallen into is bonded vacuum furnace water absorbent surface again after sink, and so on；Suction roll is acted on very by frictional force It is rotated under the drive of empty roller, while squeeze roll being driven to rotate, abrasion all very littles of vacuum furnace, suction roll, squeeze roll, and will not Felt is worn, does not influence its service life.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is squeeze roll structural schematic diagram.

Specific embodiment

A kind of paper machine vacuum preloading vacuum roller arrangement as shown in Figure 1, including deflector roll 1, felt 2, vacuum furnace 3 and sink 7, The felt 2 is successively provided with therewith side by side across the side around deflector roll 1 and vacuum furnace 3, vacuum furnace 3 towards the deflector roll 1 Suction roll 5 and squeeze roll 6, the suction roll 5 are made of the water absorption layer of core roller 4 and the 5cm thickness on covering 4 surface of core roller, the core Roller 4 and 6 both ends of squeeze roll pass through bearing respectively and are rotationally connected with bracket, the core roller 4 and vacuum furnace 3, squeeze roll 6 outer wall between Away from for 3cm, the sink 7 is located at the lower section of vacuum furnace 3 and suction roll 5 and squeeze roll 6.

As shown in Fig. 2, the squeeze roll 6 be it is hollow tubular, multiple suction holes for being connected to its inner cavity are provided on tube wall, One end of the squeeze roll 6 connects outlet pipe by rotary joint and vacuum tube 10, the outlet pipe extend downwardly communication seals Water tank 9, the vacuum tube 10 upwardly extends connection vacuum plant.

The water absorption layer is coated by sponge or absorbent cloth and is formed, and the vacuum plant is that existing air-introduced machine or vacuum occur Device, the HD HS-G type rotary joint that rotary joint is sold using Shanghai Jing Gan Industrial Co., Ltd..

Claims (4)

1. a kind of paper machine vacuum preloading vacuum roller arrangement, including deflector roll (1), felt (2), vacuum furnace (3) and sink (7), described Felt (2) is successively across around deflector roll (1) and vacuum furnace (3), it is characterised in that: side of the vacuum furnace (3) towards deflector roll (1) It is provided with suction roll (5) and squeeze roll (6) therewith side by side, the suction roll (5) is by core roller (4) and covering core roller (4) surface Water absorption layer composition, the core roller (4) and squeeze roll (6) both ends pass through bearing respectively and are rotationally connected with bracket, the core roller (4) Be less than the thickness of water absorption layer with the outer wall spacing of vacuum furnace (3), squeeze roll (6), the sink (7) be located at vacuum furnace (3) and The lower section of suction roll (5) and squeeze roll (6).

2. a kind of paper machine vacuum preloading vacuum roller arrangement as described in claim 1, it is characterised in that: the squeeze roll (6) is Hollow is tubular, multiple suction holes for being connected to its inner cavity is provided on tube wall, one end of the squeeze roll (6) passes through rotary joint Outlet pipe and vacuum tube (10), the water tank (9) of the outlet pipe communication seals are connected, the vacuum tube (10) is connected to vacuum holding It sets.

3. a kind of paper machine vacuum preloading vacuum roller arrangement as claimed in claim 2, it is characterised in that: the outlet pipe is to downward It stretches, the vacuum tube (10) upwardly extends.

4. a kind of paper machine vacuum preloading vacuum roller arrangement as described in claim 1, it is characterised in that: the water absorption layer is by sponge Or absorbent cloth coats to be formed.