Packed absorption tower for the production of sodium hypochlorite
A packing absorption tower, sodium hypochlorite technology, applied in the direction of hypochlorous acid, hypochlorite, etc., can solve the problems of chlorine gas inlet tower joint leakage, potential safety hazards, tower surface material leakage, etc., to achieve production safety and excellent quality Effects of chemical corrosion resistance and good thermal stability
Active Publication Date: 2015-09-09
FUJIAN MEIZHOU BAY CHLOR ALKALI IND
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Problems solved by technology
The material of the original packing absorption tower equipment is PVC+FRP. During the use process, due to the strong oxidative corrosion of the material medium sodium hypochlorite, the lining PVC will be completely corroded in half a year, and material leakage will occur on the surface of the tower body, and the lower chlorine gas inlet tower section Leakage is the most serious and poses a safety hazard
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[0013] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.
[0014] Please refer to Figure 1~3 , is the structural diagram and partial enlarged diagram of the packing absorption tower used for producing sodium hypochlorite in the present invention. The packed absorption tower includes an upper tower section, an intermediate supporting tower section, and a lower tower section. The upper tower section is composed of three layers of materials, which are PVDF, FRP, and 34# gel coat resin from the inside to the outside; the middle supporting tower section It is made of Ti2 material; the lower tower section is also composed of three layers of material, which are molded steel-lined PTFE material, adhesive, and carbon steel CS material in sequence from the inside to the outside. Among them, the upper towe...
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Abstract
The invention discloses a packing absorbing tower for producing sodium hypochlorite. The packing absorbing tower comprises an upper tower section, a middle supporting tower section and a lower tower section, wherein the upper tower section is made of three layers of materials which are sequentially PVDF (Polyvinylidene Fluoride), FRP (Fiber Reinforce Plastic) and 34# gel coat resin from inside to outside; the middle supporting tower section is made of a Ti2 material; the lower tower section is also made of three layers of materials which are sequentially a mould pressing steel liner PTFE (Polytetrafluoroethylene) material, a bonding agent and a CS (Carbon Steel) material. According to the invention, the PVC (Polyvinyl Chloride) material of the upper tower section of the packing absorbing tower is changed into a PVDF material, the material of the lower tower section is in a mould pressing steel liner PTFE structure, and because the chemical stability of PVDF is good, excellent chemical corrosion resistance and good heat stability resistance are achieved; the packing absorbing tower disclosed by the invention can be used for a long time within a temperature range of -62-150 DEG C, thereby ensuring the safety, persistence and stability of sodium hypochlorite production.
Description
technical field [0001] The invention relates to the field of chemical industry, in particular to a packed absorption tower for producing sodium hypochlorite. Background technique [0002] Sodium hypochlorite is a multi-purpose and multi-functional chemical product, which can be used for sterilization, sterilization, and bleaching agent in the textile and paper industry. It can be used as a chlorinating agent in the production of organic chemical products to oxidize and synthesize hydrazine hydrate and azodicarbonamide. , Chloroisocyanuric acid. As one of the products produced by the chlor-alkali industry, the production of sodium hypochlorite is actually a branch of the chlor-alkali industry. It is produced by the reaction of caustic soda and chlorine gas. There are two production methods: batch method and continuous method. The chlorine gas is sent to the liquid chlorine section to produce liquid chlorine, and the sodium hypochlorite removal device for the tail gas of the ...
Claims
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IPC IPC(8): C01B11/06
Inventor黄兴
OwnerFUJIAN MEIZHOU BAY CHLOR ALKALI IND