An automatic energy-saving dust-free metal co-infiltration system

Abstract

The invention discloses an automatic energy-saving dust-free metal co-permeation system. The automatic energy-saving dust-free metal co-permeation system comprises two automatic discharge reacting stills arranged in parallel, an automatic movable heating and heat preservation device, a blowing cooling device and a separation transport device for ditch washing and dedusting. The automatic energy-saving dust-free metal co-permeation system has the beneficial effects that (1) the degree of automation is high, and safety performance is high; (2) after the permeation is completed, workpieces, furnace burden and zinc ash poured into the separation transport device for ditch washing and dedusting from still bodies can be separated automatically in the ditch and washed thoroughly, and no dust is generated, so that environmental protection performance is good; (3) energy consumption is greatly reduced, and especially power consumption of the overall system is greatly reduced; and (4) the overall system is low in manufacturing cost and further lowers production cost.

Description

technical field [0001] The invention relates to a metal co-infiltration system, in particular to an automatic energy-saving and dust-free metal co-infiltration system. Background technique [0002] Traditional powder galvanizing and multi-element alloy co-infiltration furnaces are widely used in the protection of metal materials, but the existing infiltration furnaces have the following defects in long-term use: [0003] First, in order to improve work efficiency, the existing infiltration furnace generally adopts a circular or polygonal rotary reactor with a length of 3-12 meters and a diameter of about 0.8-3 meters. However, due to the large diameter of the reactor, the infiltration During the process, the temperature difference between the center part and the edge part of the reactor is large, so it is easy to cause different thicknesses of the infiltration layer of the workpiece, poor product consistency, and difficult to control the infiltration effect. [0004] Second...

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Problems solved by technology

[0003] First, in order to improve work efficiency, the existing infiltration furnace generally adopts a circular or polygonal rotary reactor with a length of 3-12 meters and a diameter of about 0.8-3 meters. However, due to the large diameter of the reactor, the infiltration During the process, the temperature difference between the center part and the edge part of the reactor is large, so it is easy to cause different thicknesses of the permeation layer of the workpiece, poor product consistency, and difficult to control the permeation effect

[0004] Second, the existing infiltration furnace generally includes two reaction kettles, that is, one is heated and infiltrated online, and the other is used for cooling and loading and unloading, and the two reaction kettles work in rotation, so that the working time of the heating device can not be wasted , but after the infiltration of the reactor is completed, it needs to be hoisted and replaced. The temperature of the reactor just hoisted out of the holding furnace is at least 400°C, and the weight of the traditional reactor plus the weight of the workpiece and the charge is at least 4-20 tons Between, and because the workpiece and charge are generally filled about 70% in the reactor, the workpiece and charge are easy to move during hoisting, so the hoisting work of this large-scale high-temperature reactor is quite dangerous and has poor safety performance.

[0005] Third, due to the huge size of the existing reactor, for the convenience of loading and unloading, the method of rectangular opening on the side is generally adopted. When the unloading is dumped, the workpiece and the charge fall to the ground at the same time, and the high-temperature powder charge is mixed with hot steam and dust. It will quickly rise to the workshop, causing serious dust pollution. If there is no closed dust removal device, the workers in the workshop will not be able to work normally within half an hour, and the working environment is quite bad. pneumoconiosis

[0006] Fourth, due to the huge size of the existing reaction kettle, in order to increase the strength during manufacture, steel plates with a thickness of more than 20 mm are used for welding. The longer the work efficiency is lower

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