Vacuum extruder eat material (mud does not survive, a "back to mud," mud tank heating phenomenon) 

1, twisted too badly worn. Reamer with mud clearance cylinder wall is too large, or the cutter blade pitch angle right: when replacing the cutter gap in attention to maintaining its 3 ~ 5mm, and should be produced in accordance with a design point of reamer blades. 

2, the surface is too rough cutter blades, mud and leaves to increase friction: When surfacing surfacing reamer not a group all at once for End, should be gradual, partial replacement to ensure a smooth brick. 

3, severe mud cylinder wall bushing wear. Cutter blades with mud between the cylinder wall clearance is too large, resulting in mud rotary motion in the tank too much mud, mud get out, have no access: this time should be replaced with new clay cylinder liner, or in its mounted on the inner wall of the bushing or several of parallel ribs inclined to the axial direction, in place of the complex to be worn groove, the rotation preventing invalid mud to increase its effective extrusion. 

4, the gap between the pressure plate and trowel reamer is too big pressure less than mud: should adjust or repair welding, update blades to the cutter blade gap is less than 10mm. 

    Vacuum extruder clay bending motion 

1, clay bent to one side: It is due to the center line of the machine mouth, core tools, mud tanks and spiral reamer is no positive or roller bed tilt caused by the installation, adjust the position can be solved. 

2, S-bend appears clay: neck compression due to machine long enough, the Deputy Vice-leaf top of the main leaf and leaves the first section of the spiral reamer reamer first section of arrhythmia or severe wear smaller, running only the main lobe that semicircle before launching mud: You should replace them first section cutter, welding deputy leaves. Overload (high load of the motor, clutch slipping, then avoid forced start, to avoid damage to the relevant parts, or even lead to burst mud tanks, nose and other large incidents) 

1, the mud is too dry: you should shell out too dry mud, the best mouth and nose to remove machine, start the machine drain the mud tank runs dry the material before installation, and an appropriate increase in the range specified molding moisture. 

2, a long time down, mud tank more than expected to become dry and hard: it will not only severely overloaded, sometimes not start. To prevent this from happening, when more than eight hours during downtime, crashes instead of closing the mouth with water, for a two-stage vacuum extruder cylinder should be in their mud mud appropriate water to keep it moist, if you stop at 2 these days should try to open an empty mud and then shut down. 

    Vacuum extruder machine "swing" 

    This is a common problem screw extruder. Because the cutter axis is a long cantilever axis, poor stability, when the bearing shake loose, bent shaft, the first section reamer vice Mrs. hours, will exacerbate this situation. If you are not equipped with mud-cylinder gap spiral cutter blades and mud around the cylinder wall is not as big, as well as the outer edge of the spiral cutter blade circular severe loss, resulting in uneven force uniform spindle and swing, should be corrected promptly and regularly tighten bolts and anchor bolts to prevent their swing wagging tail. After mud extrusion spiral effect because the spiral cutter bar by mud, mud, mud tank section is inconsistent forward speed, the axis near the mud go faster, go slower edge of the mud, at different speeds forming the interface, the water concentration in the air gap and the air in the face, resulting in delamination between the mud stream. 

The main material is high plasticity clay, forming water is too large, the spindle speed is too high, mud mud back phenomenon appears cylinder wall and other causes. 

    Approach: 

1, the different nature of the raw materials should be mixed thoroughly, try stuffy bubble aging, internal moisture to fully penetrate the material particles, reducing the moisture of the original clay surface. 

2, due to lower molding mud water to increase the friction between the layers.