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System and method for controlling stable cooling after catalyst regeneration drying or roasting

A control system and catalyst technology, applied in the direction of catalyst regeneration/reactivation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of unseen catalyst control, stable cooling, etc., to avoid catalyst cracking, simple principle, and measurement and control reliable effects

Pending Publication Date: 2021-04-02
SUZHOU XIRE ENERGY SAVING ENVIRONMENTAL PROTECTION TECH CO LTD +2
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0008] However, there is no equipment and method for controlling the stable temperature drop after catalyst regeneration drying or roasting procedures that can achieve the above requirements.

Method used

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  • System and method for controlling stable cooling after catalyst regeneration drying or roasting
  • System and method for controlling stable cooling after catalyst regeneration drying or roasting
  • System and method for controlling stable cooling after catalyst regeneration drying or roasting

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Embodiment Construction

[0032] Such as figure 1 , figure 2 , image 3 As shown, the present invention is a catalyst regeneration drying or roasting control and stable cooling system, which evenly blows the wind from the circulation fan 2 to the catalyst 3 through the top port of the cooling box 1 to drive the gas flow, so that the temperature is uniform, and is equipped with The exhaust fan 4 can control the amount of exhaust air, thereby controlling the rate of cooling, and is provided with a thermocouple assembly 5, and the thermocouple 13 is inserted into the hole of the catalyst 3 to measure the temperature in the hole, so that the control of the amount of exhaust air can be controlled. There is a basis, specifically, it includes a cooling device, a thermocouple assembly 5, a control system (not shown in the figure), the cooling device includes a cooling box 1, and the cooling box 1 includes an air inlet 6, an exhaust port 7, a first wind Road 8, the second air duct 9, the third air duct 10, s...

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Abstract

The invention provides a system and a method for controlling stable cooling after catalyst regeneration drying or roasting, which not only can save drying and roasting equipment resources, but also can stably control slow cooling of a dried or roasted catalyst, and ensure that the mechanical strength of a regenerated catalyst finished product is not damaged and reduced due to a cooling process. Acooling box of a cooling device comprises an air inlet, an air outlet, a first air duct, a second air duct and a third air duct. A containing cavity for containing a catalyst in the cooling box is communicated with the first air duct, the second air duct and the third air duct to form a three-way structure. The air inlet is communicated with the first air duct and the second air duct to form a three-way structure. A circulating fan is connected to the second air duct. The air inlet end is connected with an air inlet control valve. The third air duct is connected with an exhaust induced draft fan, and then air is exhausted to the outside through the air outlet. A thermocouple assembly comprises a plurality of thermocouples, and the thermocouples are inserted into pore channels of the catalyst respectively. A flow equalizing grid is installed in the containing cavity located above the catalyst. The exhaust induced draft fan, the air inlet control valve, the circulating fan and the thermocouples are all connected to a control system.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a system and method for controlling and stabilizing temperature reduction after regeneration, drying or roasting of catalysts. Background technique [0002] At present, most boilers and kiln equipment are equipped with SCR denitrification devices. The SCR catalyst is its core component. However, the operating conditions of the SCR catalyst are relatively harsh. After a certain period of operation, it will be deactivated by various factors, so regeneration is a It is a commonly chosen solution to deal with deactivated catalysts. Proper treatment can effectively restore the denitrification performance of the catalyst; wet cleaning is generally used for regeneration, and the catalyst after regeneration needs to be dried and roasted, so that the activity loaded in it Decomposition of material precursors and recovery of mechanical strength of catalysts, etc. At prese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/00B01J38/02
CPCB01J19/0013B01J38/02
Inventor 张发捷叶冲贺江瑜王锦绣王晶海孔凡海杨晓宁王乐乐王丽朋姚燕雷嗣远何川李乐田马云龙吴国勋鲍强王凯卞子君李昂姚静于明哲宁少华
Owner SUZHOU XIRE ENERGY SAVING ENVIRONMENTAL PROTECTION TECH CO LTD
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