Urea granulation tower tail gas horizontal washing tower, and using method thereof
A urea prilling tower and washing tower technology, applied in separation methods, chemical instruments and methods, using liquid separating agents, etc., can solve problems such as harming crop growth, poor urea dust removal effect, insufficient contact, etc., and reduce clogging. Risk, excellent washing effect, long service life effect
Pending Publication Date: 2019-11-01
JIANGSU XINHONGDA GROUP
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
90%-99% of the dust discharged from the prilling tower is urea dust that is easily soluble in water. In humid and rainy areas, the dust often dissolves and merges into large particles, which soon land in the factory area and its vicinity, forming a highly corrosive atmospheric environment. , endanger the growth of crops, and corrode road surfaces, corrode metal facilities, damage buildings, and seriously affect human health
At present, in the existing tail gas treatment technology for urea granulation, the removal effect of urea dust in the tail gas is poor due to insufficient contact between the tail gas and the spray liquid
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0019] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the present invention is not limited to the following specific embodiments.
[0020] refer to figure 1 The described horizontal washing tower for tail gas of urea granulation tower comprises tower body 1, tail gas inlet 11, tail gas outlet 12, and said tail gas inlet 11 and tail gas outlet 12 are respectively fixedly installed at both ends of the tower body, at the tail gas Behind the inlet 11, a gas cooling and washing device 2, a washing net block 5, and a demisting device 6 are sequentially installed. In front of the washing net block 5 and the demistering device 6, flushing pipes 4 are respectively installed in the direction close to the exhaust gas inlet 11. Several nozzles 3 are installed on the flushing pipe 4 .
[0021] Here, the tail gas inlet 11 and the tail gas outlet 12 are respectively fixedly installed at both ends of the tower...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a urea granulation tower tail gas horizontal washing tower, and a using method thereof. The urea granulation tower tail gas horizontal washing tower comprises a tower body, a tail gas inlet, and a tail gas outlet; the tail gas inlet and the tail gas outlet are fixedly arranged on the two ends of the tower body respectively; the back part of the tail gas inlet is provided with a gas cooling and washing flushing device, a washing screen block, and a demisting device successively; flushing pipes are arranged in front of the washing screen block and the demisting device close to the tail inlet direction; and the flushing pipes are provided with a plurality of spray nozzles. According to the urea granulation tower tail gas horizontal washing tower, the spray nozzles areused for spraying washing water to form water film on the washing screen block for full contact with tail gas, and defoaming is carried out, so that at last, the washing effect on dust in gas is excellent, and demisting effect on gas is more ideal.
Description
technical field [0001] The invention relates to the field of tail gas treatment, in particular to a horizontal washing tower for tail gas of a urea prilling tower and a use method thereof. Background technique [0002] In the urea production process of tower granulation, some dust will inevitably be generated. According to relevant information, even under the best operating conditions, 0.8-1.3Kg of dust will overflow per ton of urea, and the dust concentration in the outlet gas of the prilling tower is 109-177mg / m 3 , which is unavoidable under the current production process and equipment conditions. 90%-99% of the dust discharged from the prilling tower is urea dust that is easily soluble in water. In humid and rainy areas, the dust often dissolves and merges into large particles, which soon land in the factory area and its vicinity, forming a highly corrosive atmospheric environment. , Harm the growth of crops, and corrode road surfaces, corrode metal facilities, damage ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): B01D47/06
CPCB01D47/06
Inventor 陈子阳陈爱民
Owner JIANGSU XINHONGDA GROUP