TH42407A - A method and a dual-belt press for the continuous production of sheet or panel-shaped materials. - Google Patents

Abstract

DC60 (02/06/42) The double belt press (100) consists of a pressing line (3) in the outlet section (30''), where the heat transfer medium is directed to the pressing belts (1, 2) all the way through the receiving plates (26", 27") that extend across the (4). This heat transfer medium is not heated but, conversely, contributes to its own heating and changes the heat (50) for use in the other component (53). In this way, the heat balance of the installation which The double belt press (100) is incorporated into the compression line (3) in the outlet section (30"), where the heat transfer medium is directed to the belt press (1,2) along the way through the chain rollers (30', 30"). The chain rollers (30', 30") are separated in the direction of movement (16) of the line (4), thus reducing the transfer of heat from the leading section (3') of the compression line (3) to the exit section (3") (Figure 1). The double belt press (100) incorporates the compression line (3) in the outlet section (30"), where the heat transfer medium is directed to the belt press (1,2) all the way through the receiving rollers (26",27") that extend across the line (4). This heat transfer medium is not heated but, conversely, contributes to its own heat increase and converts the heat (50) for use in another component (53). In this way, the heat balance of the installation which A double belt press (100) is modified, and belt presses (1,2) are supported on chain pulleys (30,30"). The chain pulleys (30,30") are separated in the direction of movement (16) of the (4) line, so the transfer of heat from the leading part (3) of the compression line (3) to the exit part (3") is reduced (Figure 1).

Claims (16)

1. Method for the continuous production of wood panels and similar materials from particle size of panel or sheet material bonded together by a binder cured under heat and pressure in a twin-line press (100). The broken particles, ready with the binder, are placed on the horizontal runs of a conveyor belt to form an accumulation (4") and cured under heat and pressure in the compression direction (3) between the upper run (2") of the rotating metal lower press belt (2) and the lower run (1"), moving in the same direction as in the forward direction (16) of the twin-line press (100) of the metal upper press belt (1) to form a panel or sheet shape. The working pressure and heat required for formation are transferred in the compression direction (3) from the support structures (26,27) to the press belts (1,2) and from these runs to the placed material (4"), and from which the heat is transferred to the support structures (26,27) by a portion of the heat transfer medium stacked through the passages. The characteristic is that the heat transferred to the heat transfer medium in this section of the compression line(3) is removed by the heat transfer medium in the exit section(3) of the compression line(3) and used outside the compression line(3). 2. The method under claim 1 is characterized in such a way that the heat transfer medium is not heated for the outer (3) portion of the compression line (3). 3. The method under claim 1 or 2 is characterized in such a way that the heat removed from the outlet side (3) of the compression line (3) is used at another point in the method. 4. The method under claim 1 or 2 is characterized in such a way that the heat removed from the exit side (5) is applied outside the method. 5. A double belt press for the continuous production of wood panels and similar materials from panel or sheet materials consisting of particles held together by a binder cured under heat and pressure. Two helical metal compression belts (1,2) run in a vertical plane, with the upper (2) section of the lower belt (2) and the lower (1) section of the upper belt (1) overlapping in the compression line (3) against the support structure (26,27) and compressing the material placed (4) in the compression line under the action of heat and pressure. With passages provided in the support structure (26,27) throughout the section, a heat transfer medium is introduced, characterized in such a way that the passage of the outlet section (3) of the compression line is connected to a heat exchanger (50), and the heat separated by the heat transfer medium from the outlet section (3) is transferred to another component (53) that does not form the compression line (3). 6. The double belt press under claim 5 is characterized in such that the passage of the outlet section (3) of the compression line is supplied with an unheated heat transfer medium. 7. The double belt press according to claim 5 or 6 is specified in such a way that the other component (53) is connected against the double belt press (100). 8. The double belt press according to claim 5 or 6 is characterized in such a way that the other component is independent of assembly or separated from the method of continuous production of wood panels and similar materials from panel or sheet materials held together by a bonding agent which is cured under heat and pressure. 9. The double belt press according to one of the claims 5 through 8 is characterized in such a way that a rotating chain (30) is provided between the compression belts (1,2) and the support plates (28,27) in the compression direction (3) to move together, the chain that transmits heat and pressure from the support plates (28,27) to the compression belts (1,2) and the rotating chain (30) of the outlet section (3) is separated from the rotating chain (30) of the leading section (3) of the compression direction (3) which is on the same line in the direction of movement. 10. A double belt press for the continuous production of wood panels and similar materials from panel or sheet materials consisting of particles held together by a coupling agent which is cured under heat and pressure. Two metal pressing belts (1,2) run in a vertical plane, with the upper running section (2) of the lower belt (2) and the lower running section (1) of the upper belt (1) overlapping in the pressing direction (3) against the support structure (26,27) and pressing together the material placed (4) in the pressing direction under the action of heat and pressure. With passages provided in the support structure (26,27) throughout the section through which a heat transfer medium is introduced, and with rotating chains running around between the pressing belts (1,2) and the support plate (26,27) and transferring heat and pressure from the support plate (26,27) to the pressing belts (1,2), it is characterized in such a way that the rotating chain (30) of the outlet section (2) is separated from the chain wheel. Rotate (30) while lying on the same line in the direction of movement (16) of the leading part (3) of the compression line (3). 11. The double belt press according to one of the claims 5 through 10 is characterized in such a way that the separation point of the rotating chain wheel (30,30) is placed on at least one side of the groove (4) along the straight line (31) that extends transversely to (4). 12. A double belt press according to one of the claims 5 through 10 is characterized in such that the separation point of the chain wheel rotates (30,30° on at least one side of the groove(4) running at an angle above 90° to the direction of movement(16). 13. The double belt press according to claim 12 is characterized in such a way that the angles on the two upper sides of the groove line are different. 14. A double belt press according to one of the claims 5 through 8 is characterized in such that the separation points of the adjacent rotating chain wheels (30,30) connected transversely to the groove (4) are placed on at least one side of the groove (4) at a different height when viewed in the direction of movement (16). 15. The double belt press according to claim 14 is defined in such a way that the separation point of at least one rotating chain wheel (30,30) is in the transverse direction when viewed in the direction of movement (16) and the rotating chain wheel (30,30) of the other section, which is laid in the same line in the direction of movement (16), is forced in the gap. 16. A double belt press according to one of claims 5 through 15 is characterized in such a way that the separation points (28,29) of the chain wheels (30,30) on the two sides of the groove (4) are offset relative to in the direction of movement (16) of the groove. (16 claims, page 3, figure 9)