Agglomeration drum for pre-treating minerals
A technology of agglomeration and rotating drum, applied in the direction of granulation in rotating tank, improvement of process efficiency, chemical/physical process, etc., can solve problems such as insolvency, inability to implement agglomeration process, and inability to improve agglomeration process, etc. To achieve the effect of reducing operating costs
Active Publication Date: 2018-03-27
蓬塔德洛博斯有限公司 +1
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Problems solved by technology
Although this process is well known in the prior art, e.g. as a combustion gas, allowing the release of toxic gases to the environment to be significantly reduced, it cannot be used directly in the implemented in the agglomeration process
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[0122] figure 1A preferred embodiment of the agglomeration drum that is the object of the present invention is shown, comprising a feed chute 100 upstream of one end thereof to receive the material to be introduced into the agglomeration drum, the agglomeration drum The drum is preferably inclined and divided by a rack 201 into two separate parts. In this respect, the first part of the agglomeration drum is located upstream of the rack 201 and the second part of the agglomeration drum is located downstream of the rack 201 .
[0123] At the end opposite to the feed chute 100 , ie at the downstream end, there is a discharge chamber 400 for discharging heavy material and extracting gases generated and / or present in the agglomeration drum. To achieve this dual function, the discharge chamber 400 comprises a discharge chute 401 preferably located at the bottom of the discharge chamber and an exhaust hood 420 preferably located at the upper part of the discharge chamber, wherein t...
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Abstract
The present invention relates to an agglomeration drum and to a mineral agglomeration method performed inside the drum for, pre-treating minerals, both used principally in hydrometallurgy. The drum and method use a gas recirculation system and a gas recirculation step as part of the invention. Furthermore, the agglomeration method includes the process of chemical reactions that occur inside the agglomeration drum. The agglomeration drum, the agglomeration method and the reactive process allow uniform, stable agglomerates having low degradability and a greater contact surface between the reagent and the agglomerate, to be obtained. The uniform agglomerates produced in the agglomeration drum and in accordance with the method of the invention, increase the extraction yield of the subsequent leaching process, reducing the creation of preferential pathways of the leaching solution in leaching heaps. Additionally, the drum and method of the invention prevent the release of gases into the atmosphere, having a gas recirculation system which, when sealed, keeps the gases within the agglomeration drum and the process. This gas recirculation not only prevents the release of the gases into theatmosphere, but also reduces operational costs, since the recirculated gases are used as part of the agglomeration process.
Description
technical field [0001] The present invention relates to an agglomeration drum and a method of mineral agglomeration carried out in the drum for the pretreatment of minerals, both of which are mainly used in hydrometallurgy. The drum and method use the gas recirculation system and procedure as part of the present invention. In addition, the chemical reaction process that takes place in the agglomeration drum is included in the agglomeration process. The agglomeration drum, the agglomeration method and the reaction process allow to obtain homogeneous, stable and recalcitrant agglomerates with a larger agglomerate-reagent contact surface. The agglomerates or aggregates produced in the agglomeration drum according to the method of the invention increase the extraction yield of the subsequent leaching process, thus reducing the creation of preferred channels for the leach solution in the leach heap. [0002] Furthermore, the drum and method of the present invention allow preventi...
Claims
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IPC IPC(8): B01F9/00B01F9/02B01J2/12C22B1/14C22B1/16B01F29/60
CPCB01J2/12C22B1/14C22B1/24C22B15/0071Y02P10/20C22B1/16
Inventor 奥斯卡·恩达尔·托莱多胡安·卡洛斯·法拉克尔乔治·伊宾扎·阿瓦尔卡胡安·帕特里克·伊巴涅斯
Owner 蓬塔德洛博斯有限公司