JPS5950440B2 - Double “ro” cloth running pressurized dehydrator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a continuous dewatering machine that gradually and effectively applies the principles of dewatering sludge by gravity, head, wedge-shaped dewatering, and pressurized dewatering using a drum surface using a press belt, intermediate rollers, and high-pressure rollers. .

Conventional double-layered cloth operation type filters have a limited pressurizing force due to the strength of the P cloth, making it impossible to dewater under high pressure, and it is also difficult to prevent sludge from leaking from both sides of the furnace cloth, which limits the amount of sludge supplied. Furthermore, since the furnace cloth runs on many roller surfaces, the mechanism is complicated and it is difficult to prevent meandering.

In this invention, the transmission and watertight V belt on both sides of the drive V pulley is reversed through each deflection roller and tension roller, and is wound around the drum, intermediate pressure roller, and high pressure roller so that the inner and outer P fabrics are watertightly wound on each side. Appropriate tension is applied to the V-belt by adjusting tension rollers, which are operated together with the inner and outer furnace fabrics.The press belt in the middle of the driving V-pulley also has an adjustment roller, a drum upper circumferential surface, an intermediate pressure roller, and a high pressure roller. The tension roller is adjusted by a hydraulic device, and the press belt is applied with appropriate tension to pressurize the furnace cloth surface. By increasing or decreasing the pressure applied to the cloth surface, it is possible to appropriately set the dewatering tension of the cloth on the inner and outer surfaces of the intermediate pressure roller.

The rotating drum is a perforated plate cylinder, and both sides are flat cylinders that are larger than the outer diameter.A transmission V belt is wound around the inner and outer cover cloth, and both sides are made watertight, and the middle part with a diameter difference is sufficient to keep the sludge flowing to the right side of both doors. Rubber flat plates are glued between the cylinders on both sides so as to divide the middle porous cylindrical surface into several sections, and the winding process is such that the furnace cloth becomes polygonal, and the P cloth is wrapped around the porous cylindrical surface. The P liquid from the inner furnace cloth is pumped up by multiple packets inside the drum, collected in a saucer, and then collected inside the main shaft of the drum. The water is discharged from the drain pipe that passes through the pipe.

The intermediate pressure roller is a cylinder with drainage holes, and the winding is done by gluing and fixing a rubber ring between each press V-belt to support the furnace fabric surface.The transmission V-grooves on both sides are made even larger in diameter, and deep grooves are processed to form a press belt. In addition to maintaining the same speed, the difference in diameter also prevents leakage from both sides.

The high pressure roller has a small diameter to increase the unit pressure on the pressure surface, and both sides of the perforated plate cylinder are large diameter cylinders, and a transmission V belt is used to prevent leakage from the P placement side. Strong pressurized dehydration is performed.

Embodiments of the invention will be described based on the drawings.

The rotating drum 1 is composed of a perforated cylinder 2, a flat cylinder 3 on both sides, a flat rubber plate 4, a pumping vat 5, etc., and is supported by a main bearing 7 set in a frame 6 and rotated.The pumping furnace liquid is pumped in packets. Water is collected in a saucer 8 and drained out through a fixed drain pipe 9 passing through the main shaft.

Driving ■ The pulley 10 is rotated by a chain wheel 11, and the transmission V-belts 12 on both sides pass through deflection rollers 13, tension rollers 14, and are reversed by a deflection roller 15 to rotate the circumferential surface of the flat cylinder 3 on both sides of the drum, and then to the intermediate pressure roller. 16. The high pressure roller 17 and the winding are operated.

In addition, the press belt 18 in the intermediate groove has an adjustment roller 19, an upper circumferential surface of the drum, an intermediate pressure roller 16, and a high pressure roller 1.
The upper end of the support arm 23 to which the adjustment roller 19 is attached is supported by a pin rotation support by a pin holder 24. The screw block 25 at the lower end is actuated by a screw rod to move the adjusting roller 19 in the vertical direction to increase or decrease the angle at which the press belt contacts the drum surface.

The intermediate pressure roller 16 is a cylinder having a water drain hole 27, a press belt 18 is wound around it, and a rubber ring 28 is placed between the V-belts.
is fixed with adhesive, and both sides of the large diameter are machined with deep grooves to create a transmission V.
A belt 12 is wrapped around it.

The high pressure roller 17 is a perforated plate cylinder, and both sides are flat cylinders with a larger diameter.The transmission V-belt 12 wraps the inner and outer furnace cloths in a watertight manner. and is discharged to both sides by the vane plate 30.

The supplied mud from the mud supply gutter 31 is dehydrated by gravity from the outer furnace cloth belt 33 running on the support rollers 32, and is further swallowed between the inner door cloth belt 1 and the inner door cloth belt 34 on the peripheral surface of the drum by the rollers 36 of the support frame 35. A curved support frame 38 having rollers 37 so that water is removed by a drop from both sides of the held outer shedding cloth, and the gap between the drum surface and the drum surface narrows further in the direction of travel.
is adjusted by a force screw 39, and wedge-shaped pressurized dehydration is performed from the inner and outer furnace cloths, and the advancing inner and outer P cloths are further pressurized and dehydrated by the tension of the press belt on the drum surface, and the advancing cloth is then dehydrated by pressure using the intermediate pressure roller 16. Dewatering is carried out in , and further high-pressure dehydration is carried out using a press belt on the surface of the high-pressure roller 17.

The press belt runs from P cloth bell 1 to drive V pulley 10.
P advances in the direction of the guide roll 40, and the inner and outer sheath cloths are further separated in different directions, and the cake is peeled off by the scraper 42 on the surface of each deflection roller 41. After washing the P cloth, each tension roller 43
, 44, the tension is adjusted and circulated.

As mentioned above, this invention uses a rotating machine with a simple structure to ensure continuous operation of the inner and outer furnace cloth belts, gradually and effectively applying the principle of dewatering to the fed mud, resulting in high-capacity dewatering and low water content. The rate cake is continuously discharged, maintenance and inspection are easy, and the operation noise and power cost are low.

[Brief explanation of the drawing]

Fig. 1 is a general side view showing an embodiment of the invention, Fig. 2 is a cross section of the drum part, deflection roller, press belt tension roller, Fig. 3 is a drive V pulley, and Fig. 4 is a cross section of the high pressure roller. 5 is a cross-sectional view of the intermediate pressure □ roller, and FIG. 6 is a diagram of the drum surface P cloth wrapping.

Claims (1)

[Scope of Claims] 1. In a dewatering machine with double P cloth circulation operation, the sludge supplied to the outer P cloth belt is sandwiched between the drum surface and the inner P cloth belt, and the head from both furnace cloths is removed on the operating drum surface. Wedge-shaped dewatering, controlled pressurized dehydration using a press V-belt, tension pressurized dehydration of both oven cloth bells 1~ on the intermediate pressurizing roller surface, and high-pressure dehydrating using the press V-belt on the high-pressure roller surface. Both furnace cloth belts are circulated from a guide roller through each deflection roller, and a transmission V belt is hung on both side V grooves of an electric rotating drive V pulley, and a plurality of press V belts are hung on the middle V groove. The transmission V-belts on both sides pass through each deflection roller and a tension roller, and then are reversed from the deflection roller at the drum intake port to make the inner and outer furnace cloth belts watertight on both sides of the drum cylinder. It is operated with a high pressure roller and a cloth belt wrapped around each side. The press V-belt consists of an adjustment roller, the upper circumferential surface of the drum, an intermediate pressure roller, a high pressure roller, and the winding cloth surface is pressurized by the hydraulic tension of the tension roller. Pressure on the drum surface plus the V-belt is adjusted by adjusting the angle.The drum has a middle porous cylindrical surface with a smaller diameter than the cylinders on both sides, which is divided into several sections, and the inner and outer sheathed cloth belts run in a polygonal shape to drain liquid from the inner P cloth. is a continuous pressurized dehydrator configured to pump up and discharge water using packets.