阅读说明：本技术 高效回收氨的新型酚氨回收装置 (Novel phenol ammonia recovery device for efficiently recovering ammonia ) 是由 崔立国 王洪坤 张成吉 郑伟民 王国平 段炯 白佳 崔富忠 于 2019-11-07 设计创作，主要内容包括：本发明涉及氨气回收装置的技术领域,是一种高效回收氨的新型酚氨回收装置,其包括脱氨塔、多级分凝系统、氨气净化塔、压力调节组阀、氨气吸收冷却器,脱氨塔的塔顶气相出口端与多级分凝系统的气相输入端管连接,多级分凝系统的气相输出端与氨气净化塔下侧的物料入口端管连接,在氨气净化塔的塔顶上设置有压力调节组阀。本发明结构合理而紧凑,通过多级分凝系统系统可以使混合气中大部分的酚类、油类等杂质以冷凝液的方式从混合气中分离出来,进而可以在多级分凝系统系统的气相出口端得到纯度较高的净化氨气,在无热源的氨气净化塔、氨气吸收冷却器、多级分凝系统系统、中冷循环装置的共同作用下,可以形成高纯度的氨气。(The invention relates to the technical field of ammonia recovery devices, in particular to a novel phenol ammonia recovery device for efficiently recovering ammonia, which comprises a deamination tower, a multistage segregation system, an ammonia purification tower, a pressure regulation group valve and an ammonia absorption cooler, wherein the gas phase outlet end at the top of the deamination tower is connected with the gas phase input end pipe of the multistage segregation system, the gas phase output end of the multistage segregation system is connected with the material inlet end pipe at the lower side of the ammonia purification tower, and the pressure regulation group valve is arranged at the top of the ammonia purification tower. The multi-stage fractional condensation system has a reasonable and compact structure, most of the impurities such as phenols, oils and the like in the mixed gas can be separated from the mixed gas in a condensate mode through the multi-stage fractional condensation system, purified ammonia with high purity can be obtained at a gas phase outlet end of the multi-stage fractional condensation system, and high-purity ammonia can be formed under the combined action of the heat-source-free ammonia purification tower, the ammonia absorption cooler, the multi-stage fractional condensation system and the intercooling circulation device.)

1. A novel phenol ammonia recovery device for efficiently recovering ammonia is characterized by comprising a deamination tower, a multistage segregation system, an ammonia gas purification tower, a pressure regulating group valve and an ammonia gas absorption cooler, wherein the deamination tower is a rectifying tower provided with a steam heating pipeline and a feeding pipeline, the gas phase outlet end at the top of the deamination tower is connected with the gas phase input end pipe of the multistage segregation system to reduce the temperature of the gas phase material at the top of the tower and condense and separate impurity materials, the gas phase output end of the multistage segregation system is connected with the material inlet end pipe at the lower side of the ammonia gas purification tower, the liquid phase output end of the multistage segregation system is connected with an ammonia condensate tank pipe, the ammonia condensate tank is provided with a first backflow pipeline and a discharge pipeline, the upper part of the deamination tower is communicated with the ammonia condensate tank by the first backflow pipeline, a first circulating pump is arranged on the first backflow pipeline, the ammonia gas purification tower is a packed tower without the steam heating pipeline, the tower top of the ammonia gas purification tower is provided with a tower top gas phase pipeline, one end of the tower top gas phase pipeline is communicated with the tower top gas phase outlet end of the ammonia gas purification tower, the other end of the tower top gas phase pipeline is communicated with the inlet end of an ammonia gas absorption cooler, a pressure adjusting group valve is arranged on the tower top gas phase pipeline, the inlet end of the ammonia gas absorption cooler is also provided with an absorption water pipeline, a water quantity control valve is arranged on the absorption water pipeline, the outlet end of the ammonia gas absorption cooler is connected with an ammonia water tank, the ammonia water tank is provided with a product output pipeline and a second return pipeline communicated with the upper part of the ammonia gas purification tower, a second circulating pump is arranged on the second return pipeline, the ammonia gas purification tower is also provided with an intercooling circulation device which can circulate the tower bottom liquid of the ammonia gas purification tower to the tower top, and the tower bottom liquid outlet end of the ammonia gas purification, and a third circulating pump is arranged on the third return pipeline.

2. The novel phenol ammonia recovery device for efficiently recovering ammonia according to claim 1, wherein the multistage fractional condensation system comprises a primary ammonia condenser, a secondary ammonia condenser, a tertiary ammonia condenser and an ammonia condensate cooler, a gas phase inlet end of the primary ammonia condenser is connected with a gas phase outlet end pipe at the top of the deamination tower, a gas phase outlet end pipe of the primary ammonia condenser is communicated with a primary fractional liquid tank, a gas phase outlet end of the primary fractional liquid tank is connected with a gas phase inlet end pipe of the secondary ammonia condenser, a liquid phase outlet end of the primary liquid separation tank is connected with an inlet end pipe of the ammonia condensate cooler, a gas phase outlet end pipe of the secondary ammonia condenser is communicated with a secondary fractional liquid tank, a gas phase outlet end of the secondary fractional liquid tank is communicated with a gas phase inlet end pipe of the tertiary ammonia condenser, and a liquid phase outlet end of the secondary fractional liquid tank is also connected with an inlet end pipe of the ammonia condensate, the exit end and the ammonia condensate jar union coupling of ammonia condensate cooler, the gaseous phase exit end and the tertiary knockout drum union coupling of tertiary ammonia condenser, the gaseous phase exit end and the material entry end union coupling of ammonia purification tower bottom of three-stage knockout drum, the liquid phase exit end of tertiary knockout drum also with ammonia condensate jar union coupling.

3. The novel phenol ammonia recovery device for efficiently recovering ammonia according to claim 1 or 2, wherein the intercooling device comprises a large-displacement intercooling circulating pump and an intercooling cooler, a plurality of packing layers are arranged in the ammonia gas purification tower, a fourth return pipeline for communicating the tower bottom with the tower top is arranged on the ammonia gas purification tower, and the intercooling circulating pump and the intercooling cooler are arranged on the fourth return pipeline.

4. The novel phenol ammonia recovery device for efficiently recovering ammonia according to claim 1 or 2, wherein the pressure regulating valve comprises a pneumatic valve, a front hand valve and a rear hand valve, the pneumatic valve, the front hand valve and the rear hand valve are all installed on the gas phase pipeline at the top of the tower, the pneumatic valve is arranged between the front hand valve and the rear hand valve, a bypass pipeline bypassing the pneumatic valve, the front hand valve and the rear hand valve is further arranged on the gas phase pipeline at the top of the tower, one end of the bypass pipeline is communicated with the gas phase pipeline at the top of the tower in front of the front hand valve, the other end of the bypass pipeline is communicated with the gas phase pipeline at the top of the tower in rear of the rear hand valve, and the maintenance hand valve is installed on the bypass pipeline.

5. The novel phenol ammonia recovery device for efficiently recovering ammonia according to claim 3, wherein the pressure regulating valve comprises a pneumatic valve, a front hand valve and a rear hand valve, the pneumatic valve, the front hand valve and the rear hand valve are all installed on the tower top gas phase pipeline, the pneumatic valve is arranged between the front hand valve and the rear hand valve, a bypass pipeline bypassing the pneumatic valve, the front hand valve and the rear hand valve is further arranged on the tower top gas phase pipeline, one end of the bypass pipeline is communicated with the tower top gas phase pipeline in front of the front hand valve, the other end of the bypass pipeline is communicated with the tower top gas phase pipeline behind the rear hand valve, and the maintenance hand valve is installed on the bypass pipeline.

6. A novel phenol ammonia recovery device for efficiently recovering ammonia according to claim 1, 2 or 5, which is characterized in that a safety pipeline communicated with a gas phase pipeline at the top of the tower is further arranged at the gas phase outlet end of the three-stage liquid separation tank, the safety pipeline is arranged in front of the pressure regulating valve, a first safety hand valve for controlling the on-off of the safety pipeline is arranged on the safety pipeline, and a second safety hand valve is arranged on a pipeline connected with a material inlet end at the lower side of the ammonia gas purification tower.

7. The novel phenol ammonia recovery device for efficiently recovering ammonia according to claim 3, wherein a safety pipeline communicated with the gas phase pipeline at the top of the tower is further arranged at the gas phase outlet end of the three-stage liquid separation tank, the safety pipeline is arranged in front of the pressure regulating valve set, a first safety hand valve for controlling the safety pipeline to be switched on and off is arranged on the safety pipeline, and a second safety hand valve is arranged on a pipeline connected with the material inlet end at the lower side of the ammonia gas purification tower.

8. The novel phenol ammonia recovery device for efficiently recovering ammonia according to claim 4, wherein a safety pipeline communicated with the gas phase pipeline at the top of the tower is further arranged at the gas phase outlet end of the three-stage liquid separation tank, the safety pipeline is arranged in front of the pressure regulating valve set, a first safety hand valve for controlling the safety pipeline to be switched on and off is arranged on the safety pipeline, and a second safety hand valve is arranged on a pipeline connected with the material inlet end at the lower side of the ammonia gas purification tower.