疊螺式污泥脫水機(jī)是脫水設(shè)備中的新生軍，其不占空間，方便快捷，成本低的優(yōu)勢(shì)使其成為目前脫水設(shè)備市場(chǎng)的主力軍，今天我們就來聊一聊疊螺機(jī)的工藝原理。

The stacked screw type sludge dewatering machine is a new force in dewatering equipment. Its advantages of space saving, convenience, and low cost make it the main force in the current dewatering equipment market. Today, we will talk about the process principle of the stacked screw machine.

第一階段，首先進(jìn)入濃縮階段，螺旋軸向前轉(zhuǎn)動(dòng)時(shí)，螺旋軸外圍的多個(gè)定環(huán)相對(duì)移動(dòng),重力作用下，水從動(dòng)定環(huán)間隙中濾出，從而快速實(shí)現(xiàn)濃縮。

In the first stage, the concentration stage is first entered. When the spiral shaft rotates forward, multiple fixed rings around the spiral shaft move relative to each other. Under the action of gravity, water is filtered out from the gap between the fixed rings, thus achieving rapid concentration.

第二階段進(jìn)入脫水階段，濃縮過的污泥隨著螺旋軸的不斷往前推動(dòng)向出泥口方向，螺距逐漸變小，各個(gè)環(huán)之間的縫隙也越來越小，主體內(nèi)部的體積不斷變小;在出泥斗背壓板背壓板的作用下，壓力逐漸變大，在螺旋軸不斷推動(dòng)下，污泥中的水分從動(dòng)環(huán)定環(huán)縫隙中流出，濾餅含含水率不斷減少不斷升高，最終實(shí)現(xiàn)連續(xù)脫水，達(dá)到污泥目標(biāo)的含水率。

The second stage enters the dehydration stage, where the concentrated sludge is continuously pushed forward towards the sludge outlet direction with the spiral axis, and the pitch gradually decreases. The gaps between the various rings also become smaller, and the volume inside the main body continues to decrease; Under the action of the back pressure plate of the sludge hopper, the pressure gradually increases. Under the continuous push of the spiral shaft, the water in the sludge flows out from the gap of the fixed ring, and the moisture content of the filter cake continuously decreases and increases. Finally, continuous dehydration is achieved to achieve the target moisture content of the sludge.

第三階段是自清洗階段，設(shè)備長(zhǎng)時(shí)間和污泥打交道，不經(jīng)常清洗，污泥干化了可能造成堵塞，但疊螺機(jī)很少出現(xiàn)這種情況，因?yàn)榀B螺機(jī)本身帶有自清洗功能通過:螺旋軸的旋轉(zhuǎn)，依靠固定環(huán)和動(dòng)環(huán)之間的不斷移動(dòng)可以連續(xù)的自清洗，總而避免傳統(tǒng)設(shè)備出現(xiàn)的堵塞問題。

The third stage is the self-cleaning stage, where the equipment interacts with sludge for a long time and is not cleaned frequently. If the sludge dries, it may cause blockage, but this situation is rare for the screw stacker because it has a self-cleaning function. By rotating the screw shaft and continuously moving between the fixed and moving rings, it can continuously self-cleaning, avoiding the blockage problem that traditional equipment may encounter.