An activated kiln for treating polluted soil and its control method
A technology of polluted soil and kiln body, applied in waste heat treatment, furnace control device, furnace, etc., can solve the problems of insufficient ability to deal with polluted soil, long activation cycle of activation kiln, etc., achieve the effect of shortening activation cycle and improving processing capacity
Active Publication Date: 2020-05-19
重庆绿标环保科技有限公司
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Problems solved by technology
[0005] For the above-mentioned deficiencies existing in the prior art, the object of the present invention is: how to design a kind of activation kiln and the control method of activation kiln for processing polluted soil, to solve the problem that activation kiln activation period is long, the ability of processing polluted soil is insufficient, It has the advantages of low exhaust gas pollution and easy operation
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[0039] refer to Figure 2~Figure 4 , an activated kiln for producing cement mixture materials by using coal gangue and polluted soil, comprising a kiln body 1, and a horizontal furnace bridge 2 is installed in the kiln chamber of the activated kiln along the horizontal direction, and the furnace bridge divides the kiln chamber into a material activation layer 3 and the air duct layer 4, the material activation layer is located directly above the air duct layer; the position corresponding to the air duct layer on the kiln body is provided with three air inlets through the kiln wall, which are respectively the first flue gas inlet 6 and the second air inlet. Two flue gas inlets 7 and air inlets 5, two gas outlets are provided on the top of the kiln body, which are respectively the first flue gas outlet 8 and the second flue gas outlet 9; The feed port and the discharge port, the feed port is arranged on the top of the side of the kiln body, and the discharge port is arranged on ...
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Abstract
The invention discloses an activating kiln for treating contaminated soil, wherein the activating kiln includes a kiln body; a transverse furnace bridge is arranged in a kiln chamber of the kiln body,the kiln chamber is divided into an upper layer and a lower layer by the furnace bridge, the upper layer is a material activation layer, and the lower layer is an air duct layer; the kiln body is provided with an air inlet, two flue gas inlets and two flue gas outlets, and the kiln body is also provided with a feed port and a discharge port; a feed door is arranged at the feed port, and a discharge door is arranged at the discharge port; a variable-frequency flue gas fan and an air gate are arranged at each of the flue gas inlets and the flue gas outlets, and an air fan gate is arranged at the air inlet. The invention also discloses a control method of the activating kiln for treating the contaminated soil; the activation process includes material addition, material heating, first temperature activation, second temperature activation, cooling and discharging; through effective control of the activation process, the activation period of the material can be shortened, the contaminated soil treatment capacity is improved, and the activating kiln has the advantages of low discharged flue gas pollution, easy and simple operation and the like.
Description
technical field [0001] The invention relates to kiln equipment, in particular to an activated kiln for treating polluted soil and a control method thereof. Background technique [0002] "Polluted soil" refers to the vigorous development of industry in modern times, and many pollutants produced, due to the unorganized discharge or the failure of the discharge system, make it seep into the soil layer, resulting in changes in the physical, mechanical and chemical properties of the soil, thus forming polluted soil . Contaminated soil mainly includes organic polluted soil and heavy metal polluted soil. For example, the soil contains VOC, SVOC, total petroleum hydrocarbons, cyanide, polycyclic aromatic hydrocarbons and other organic pollutants and heavy metals such as copper, zinc, lead, cadmium, nickel, etc., which will directly affect Production activities are harmful to human health, animal reproduction, and plant growth. [0003] "Coal gangue" is the solid waste discharged d...
Claims
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IPC IPC(8): C04B7/24C04B7/44F27D17/00F27D19/00
CPCC04B7/24C04B7/364C04B7/44F27D17/008F27D19/00F27D2019/0003F27D2019/0031Y02P40/10
Inventor 石玺庹春梅罗一芳石明国
Owner 重庆绿标环保科技有限公司