Method and system for crushing and cooling high-temperature solid waste residue blocks

Abstract

The invention provides a method and system for crushing and cooling high-temperature solid waste residue blocks. The system comprises a garbage incinerator, a crushing chamber and a collecting bin; avertical shaft is arranged at the bottom of the crushing chamber; a hammer shaft is arranged on the vertical shaft; a hammer head is arranged on the hammer shaft; the rotation radius of the hammer head is gradually reduced from top to bottom; the hammer head at the uppermost layer is a rectangular hammer head; the hammer head at the lower layer is a right-angle trapezoid hammer head; the acute angle of each right-angle trapezoid hammer head is gradually reduced from top to bottom; a counterattack plate is arranged on the inner wall of the crushing chamber; a high-pressure cooling air chamber is arranged at the lower part of the crushing chamber; a smooth umbrella plate is arranged at the top of the high-pressure cooling air chamber; a high-pressure cooling air pipe is arranged on the smooth umbrella plate; and the lower part of the smooth umbrella plate is connected with the collecting bin. The residue blocks are crushed in a graded manner, the temperatures of the residue blocks are rapidly reduced, and the energy consumption caused by high linear velocity of a multi-layer hammer head and the weight of the hammer head in existing equipment is reduced; and the diameters of the crushed residue blocks are 5-30 mm, so that the problem that large pieces of residue blocks fall and squash conveying equipment is avoided.

Description

technical field [0001] The invention belongs to the field of solid waste disposal such as domestic garbage, and in particular relates to a method and system for crushing and cooling high-temperature solid waste slag blocks. Background technique [0002] my country's economic development model in the past few decades is mainly a linear economy of "resources-products-waste". destruction, resulting in shortage or even depletion of resources. To achieve sustainable economic development, we must take the "circular economy" road. With the continuous advancement of my country's urbanization process, the urban population continues to increase, and industrial production and residents' lives produce a large amount of domestic waste. In recent years, the frequent occurrence of domestic waste pollution has posed a great threat to people's life, health and property safety. The disposal of a large amount of domestic waste has become a difficult problem in environmental governance and an ...

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Problems solved by technology

[0003] By incinerating solid waste in the furnace, it not only solves the problem of solid waste disposal but also provides heat energy for the industrial system. However, during the unloading process of vertical solid waste incinerators, large volume (diameter 100mm~800mm) hard and dense often occurs. High-temperature slag blocks, because the slag blocks are heavy (some will exceed 50kg) and often smash the conveying equipment when they fall, such as smashing the belt idler, smashing the zipper of the zipper machine, etc., which will cause large economic losses.

In addition, due to the high temperature of large slag blocks (600~800°C) and slow cooling speed, the conveyor belt will often be burned out. Generally, the incinerated slag blocks can be reused as building materials. Hard, dense and large slag blocks are not Facilitate subsequent reuse

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