Sludge brick heavy metal curing agent, sludge brick and preparation method of sludge brick

The invention discloses a sludge brick heavy metal curing agent which comprises the following components in parts by mass: 8 parts of a main curing agent and 1-3 parts of an auxiliary curing agent. The invention also provides a preparation method of the sludge brick. The preparation method comprises the following steps: preparing raw materials, adding water, uniformly stirring, standing, aging, filling aged mixed mud into a mold, carrying out compression molding, and drying and firing a sludge brick test block. The invention also provides the sludge brick which is prepared by the preparation method of the sludge brick. By adopting the technical scheme, the problems of large land occupation, possible secondary pollution, long treatment period and the like in sludge treatment can be effectively solved; the sludge brick heavy metal curing agent has a curing effect on heavy metal elements of various sludge bricks, and the treatment effect is stable. 本发明公开了一种污泥砖重金属固化剂，按照质量份数包括主固化剂8份、辅固化剂1~3份。本发明还提供一种污泥砖的制备方法，包括准备原