淤泥固化技术概述

　　Overview of sludge solidification technology

　　现有技术中，河道清淤技术主要包括以下几种：1、排干清淤：通过修建临时围堰，把待施工段的河道截封住，然后抽排水进行干挖作业或水力冲洗，以实现清淤的目的;2、水下清淤：通过借助清淤船作为施工平台，将一系列清淤装置放在船上，然后可直接在水面上进行淤泥开挖作业，再通过输送管道将开挖出来的淤泥运输到岸上堆放场;3、环保清淤：通过使用专业环保清淤设备，实现二次污染防治，保证有效的清淤深度和位置[1]。

　　In the existing technology, the river dredging technology mainly includes the following: 1. Drainage and dredging: the river channel of the section to be constructed is blocked by building a temporary cofferdam, and then the drainage is pumped for dry excavation or hydraulic flushing, so as to achieve the purpose of dredging; 2. Underwater desilting: by using the desilting ship as the construction platform, a series of desilting devices are placed on the ship, and then the sludge excavation can be carried out directly on the water surface, and then the excavated sludge can be transported to the shore stacking yard through the transmission pipeline; 3. Environmental protection desilting: through the use of professional environmental protection desilting equipment, realize the prevention and control of secondary pollution and ensure the effective desilting depth and position [1].

　　上述的河道淤泥固化处理工艺采用固化剂干粉的形式，使得搅拌时不容易搅拌均匀，固化效率低;另外，该工艺需要将淤泥输送至料仓搅拌，由于淤泥的触变性，输送淤泥至料仓费时费力，生产成本巨大[2]。

　　The above river sludge solidification treatment process adopts the form of curing agent dry powder, which makes it difficult to stir evenly during mixing and low solidification efficiency; In addition, the process needs to transport the sludge to the silo for mixing. Due to the thixotropy of the sludge, transporting the sludge to the silo is time-consuming and laborious, and the production cost is huge [2].

　　为了解决上述问题，本文的目的在于提供一种河道淤泥固化处理工艺，可以在河道现场直接进行淤泥的搅拌混合，省时省力，搅拌固化效率高。

　　In order to solve the above problems, the purpose of this paper is to provide a river sludge solidification treatment process, which can directly mix the sludge on the river site, save time and labor, and have high mixing and solidification efficiency.