摘要：【中文】本发明公开了一种焦化脱硫废液的资源化处理工艺和装置，所述工艺是将脱硫废液进行预处理，将其pH值调节至4.0～5.5。再对脱硫废液进行过滤操作，加压处理，然后与加热处理和催化氧化后的脱硫废液进行换热。将换热后的脱硫液进行蒸发浓缩，其中冷凝液直接进行生化处理，浓缩液进行催化转化处理，过滤得到硫酸铵溶液，进入硫铵母液槽回收硫酸铵产品。本发明将硫氰酸铵、硫代硫酸铵转化为硫酸铵，实现了盐的温和转化，解决了硫氰酸铵积压的问题；脱硫废液提盐后，水可直接进入生化处理，解决了系统涨液和水平衡等问题；减少了对环境的污染，实现了脱硫废液的资源化处理。 【EN】The invention discloses a resource treatment process and a resource treatment device for coking desulfurization waste liquid, wherein the process is to pretreat the desulfurization waste liquid and adjust the pH value of the desulfurization waste liquid to 4.0-5.5. And then carrying out filtration operation and pressurization treatment on the desulfurization waste liquid, and then carrying out heat exchange with the desulfurization waste liquid after heating treatment and catalytic oxidation. And (3) evaporating and concentrating the desulfurized liquid after heat exchange, wherein the condensate is directly subjected to biochemical treatment, the concentrated liquid is subjected to catalytic conversion treatment, an ammonium sulfate solution is obtained by filtering, and the ammonium sulfate solution enters an ammonium sulfate mother liquid tank to recover an ammonium sulfate product. The invention converts ammonium thiocyanate and ammonium thiosulfate into ammonium sulfate, realizes the mild conversion of salt and solves the problem of overstocked ammonium thiocyanate; after the desulfurization waste liquid is subjected to salt extraction, water can directly enter biochemical treatment, and the problems of liquid expansion, water balance and the like of a system are solved; reduces the pollution to the environment and realizes the resource treatment of the desulfurization waste liquid.

摘要：【中文】本发明公开了一种脱硫废液中盐的转化工艺和装置，所述工艺是将脱硫废液中提取出的混合盐加水溶解后，制成质量浓度为50%～70%的溶液，再进行预处理，将混合盐溶液的pH调至4.0～5.5；然后进行过滤操作，将滤液通入催化转化反应器进行转化处理，再经过滤得到硫酸铵溶液，并入硫铵母液槽。本发明将硫氰酸铵、硫代硫酸铵转化为硫酸铵，实现了脱硫废液中盐的温和转化，解决副盐市场需求少、难以销售的问题。 【EN】The invention discloses a process and a device for converting salt in desulfurization waste liquid, wherein the process comprises the steps of adding water to mixed salt extracted from the desulfurization waste liquid for dissolving, preparing a solution with the mass concentration of 50-70%, and then carrying out pretreatment, so as to adjust the pH value of the mixed salt solution to 4.0-5.5; then, filtering operation is carried out, the filtrate is introduced into a catalytic conversion reactor for conversion treatment, and then an ammonium sulfate solution is obtained by filtering and is merged into an ammonium sulfate mother liquor tank. The invention converts ammonium thiocyanate and ammonium thiosulfate into ammonium sulfate, realizes mild conversion of salt in the desulfurization waste liquid, and solves the problems of low market demand and difficult sale of secondary salt.