Apparatus for continuously manufacturing polyvinyl acetal porous material专利检索-焦耳热电磁学专利检索查询-专利查询网

Apparatus for continuously manufacturing polyvinyl acetal porous material

阅读：549发布：2022-02-23

专利汇可以提供Apparatus for continuously manufacturing polyvinyl acetal porous material专利检索，专利查询，专利分析的服务。并且Polyvinyl acetal porous material is continuously manufactured from a reaction liquid material containing polyvinyl alcohol, starch, aldehyde and acid catalyst by an apparatus comprising a conveyer chain circulating along a closed path; a plurality of Ushaped unit members secured to the conveyer chain, and joinable with each other to form a horizontal reaction trough for receiving the reaction liquid material, and each of said members being provided with an inner bottom and a pair of inner side walls made of an insulating material, on which walls at least one pair of electrodes facing each other are disposed; a feed conduit for feeding the reaction liquid material onto an entrance portion of the reaction trough; a plurality of pairs of brushes brought into slidable contact with the electrodes of the U-shaped unit members coming to the entrance portion of the reaction trough, and; means for applying a voltage to the brushes, including at least one voltage source, whereby the reaction liquid material is heated by Joule heat generated therewithin.，下面是Apparatus for continuously manufacturing polyvinyl acetal porous material专利的具体信息内容。

权利要求

1. AN APPARATUS FOR CONTINUOUSLY MANUFACTURING POLYVINYL ACETAL POROUS MATERIAL COMPRISING, IN COMBINATION, A CONVEYOR CHAIN CIRCULATING ALONG A CLOSED PATH; A PLURALITY OF U-SHAPED UNIT MEMBERS SECURED TO THE CONVEYER CHAIN AND JOINABLE WITH EACH OTHER TO FORM A HORIZONTAL REACTION TROUGH AT A PORTION OF THE CLOSED PATH, EACH U-SHAPED UNIT MEMBER BEING PROVIDED WITH AN INNER BOTTOM AND A PAIR OF INNER SIDE WALLS MADE OF AN INSULATING MATERIAL ON WHICH WALLS AT LEAST ONE PAIR OF ELECTRODES FACING EACH OTHER ARE DISPOSED; A FEED CONDUIT CONNECTED TO A REACTION LIQUID MATERIAL SUPPLY SOURCE AND OPENING AT AN ENTRANCE END PORTION OF THE REACTION TROUGH; A PLURALITY OF PAIRS OF BRUSHES IN SLIDABLE CONTACT WITH THE ELECTRODES OF THE U-SHAPED UNIT MEMBERS ARRIVING AT THE ENTRANCE PORTION OF THE REACTION TROUGH, AND; MEANS FOR APPLYING A VOLTAGE TO THE BRUSHES, CONNECTED TO AN ELECTRIC POWER SOURCE.

2. An apparatus as claimed in claim 1, wherein a preheating apparatus is inserted between the feed conduit and the reaction liquid material supply source, the preheating apparatus being provided with at least one pair of electrodes connected to a voltage applicator and facing each other through a passage for the reaction liquid material flow.

3. An apparatus as claimed in claim 2, wherein a stirrer is disposed in the passage for the reaction liquid material flow.

4. An apparatus as claimed in claim 1, wherein said voltage applicator comprises at least two voltage sources of different voltages and at least two pairs of outermost brushes connected to the lowest voltage source and at least one pair of central brushes connected to the highest voltage source.

5. An apparatus as claimed in claim 1, wherein all the pairs of brushes are connected to the same voltage source.

6. An apparatus as claimed in claim 1, wherein a housing containing the apparatus is provided with means for heating the apparatus.

7. An apparatus as claimed in claim 1, wherein a guide plate is disposed under the portion of the conveyer carrying the reaction trough, a pair of guide members extend outwardly from the side wall of the unit members, and a plurality of guide rollers are arranged at positions at which the guide members of the unit members forming the reaction trough come into contact witH the guide rollers, and are pushed downwardly, whereby the unit members forming the reaction trough are prevented from up-and-down movement.

8. An apparatus as claimed in claim 1, wherein an endless polar belt is disposed above the reaction trough and circulates along the reaction trough while coming into contact with the upper surface of the reaction liquid material in the reaction trough.

9. An apparatus as claimed in claim 1, wherein means for showering an aftertreating liquid is disposed above an exit portion of the reaction trough.

10. An apparatus as claimed in claim 1, wherein an aftertreating bath is disposed downstream of the reaction trough to immerse the resultant porous material in an aftertreating liquid contained therein.

11. An apparatus as claimed in claim 1, wherein means for washing the porous material are disposed downstream of the reaction trough.

12. An apparatus as claimed in claim 11, wherein the washing means is provided with a bath for containing a washing liquid, at least one compressing plate, movable up and down, and at least one suction box facing the compressing plate and connected to the bath through a punched plate or net and to a suction pump.

13. An apparatus as claimed in claim 11, wherein the washing means is provided with a bath for containing a washing liquid, at least one conveyer roll for conveying the porous material disposed in the bath, a compressing plate movable up and down, at least one guide roller secured on the lower surface of the compressing plate, and a suction box facing the compressing plate and connected to the bath through a punched plate or net and to a suction pump.

14. An apparatus as claimed in claim 11, wherein said washing means is provided with at least one rotatable compressing roller movable up and down, an endless conveyer belt circulating below the compressing roller and having numerous apertures, at least one suction box facing the compressing roller, coming into slidable contact with the conveyer belt and connected to a suction pump.

15. An apparatus as claimed in claim 11, wherein said washing means is provided with at least one rotatable compressing roller movable up and down, at least one rotatable suction roller facing the compressing roller and having, on its periphery, numerous apertures, and a suction box contained in the suction roller, coming into slidable contact with the inside surface of the periphery and connected to a suction box.

16. An apparatus as claimed in claim 11, wherein said washing means is provided with a compressing plate movable up and down, having a cavity formed at a lower face of the compressing plate, means for feeding a washing liquid to the cavity, and a punched plate or net covering the cavity, through which punched plate or net the washing liquid flows.

17. An apparatus as claimed in claim 16, wherein said washing means is further provided with an endless conveyer circulating below said compressing plate and having numerous apertures.

18. An apparatus as claimed in claim 1, wherein the U-shaped unit member has two insulating packings secured on a front face and a back face thereof, whereby the U-shaped unit member is joined hermetically with the adjacent foregoing and following unit members.

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Apparatus for continuously manufacturing polyvinyl acetal porous material

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