Multistage-separation process for suspension
A multi-stage separation and suspension technology, applied in the direction of filtration separation, separation method, manufacturing tools, etc., can solve the problems that the gap between the sieve bars cannot be adjusted, the dry humidity of the filter residue cannot be adjusted well, and the cost is high, so as to improve the anti-return Flow performance and filtration performance, fine solid-liquid separation effect, low production cost effect
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Embodiment 1
[0047] like figure 1 and 2 As shown, a multi-stage solid-liquid separation device includes a casing 1 and a multi-stage screen filter mechanism 2 arranged in the casing 1 and a plurality of screw extrusion solid-liquid separation mechanisms 3; the casing 1 A waste water tank 12 provided with a feed inlet 11 and a bottom, the waste water tank 12 has a water outlet 13; the feed end of the first stage screen 21 of the multi-stage screen filter mechanism 2 is arranged on the casing 1 At the feed port 11 of the feed port, a screw extrusion solid-liquid separation mechanism 3 is provided at the discharge end of each level of screen 21; the solid material discharge ends of all screw extrusion solid-liquid separation mechanisms 3 are all arranged at the said Outside the casing 1.
[0048] The multi-stage solid-liquid separation device uses a multi-stage screen filter mechanism 2 and multiple screw extrusion solid-liquid separation mechanisms 3 to simultaneously filter the suspension...
Embodiment 2
[0080] A multi-stage separation process for suspension, applied to the multi-stage solid-liquid separation device described in Example 1, the steps include:
[0081] Step 0: According to the final required dry humidity of the solid material, adjust the quantity of several elastic pressing pieces 35 on the solid material discharge end of each screw extrusion solid-liquid separation mechanism 3;
[0082] Step 1: putting the suspension requiring solid-liquid separation into the multi-stage solid-liquid separation device;
[0083] Step 2: the wastewater filtered by the multi-stage screen filter mechanism 2 flows into the wastewater tank 12;
[0084] Wherein, said step 2 includes:
[0085] Step 2.1: The wastewater in the suspension flows out from the gap between the screen bars 211 of the upper-level screen 21 to the water guide plate 22 below the screen 21 of this level;
[0086] Step 2.2: the waste water on the water guide plate 22 is diverted to the feeding end of the next-lev...
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