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An alarm device for agricultural monoammonium phosphate production system

A production system and alarm device technology, applied to ammonium orthophosphate fertilizers, phosphate, alarms, etc., can solve problems such as troubles, high temperature and high humidity in the production environment, and uneven aging speed of ammonia gas detectors

Active Publication Date: 2020-10-20
嘉施利(荆州)化肥有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the cost of the ammonia gas detector D is relatively high, and the two ammonia gas detectors D are separated, the data line is connected far away, and the production environment is high temperature and high humidity, which greatly interferes with the data line
Furthermore, the aging speed of the two ammonia detectors D is different, and calibration is often required, which is very troublesome

Method used

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  • An alarm device for agricultural monoammonium phosphate production system
  • An alarm device for agricultural monoammonium phosphate production system
  • An alarm device for agricultural monoammonium phosphate production system

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Embodiment Construction

[0016] Such as figure 2 As shown, the alarm device of a kind of agricultural monoammonium phosphate production system of the present invention comprises: a body 10, a first air pipe 11 is provided on one side of the body 10, and a second air pipe 12 is provided on the other side; There is an ammonia detector D and an MCU; the air inlet of the ammonia detector D is communicated with the first air pipe 11 through a branch pipe connected in series with the first electromagnetic valve 13, and the air inlet is also connected in series with the second air pipe 11. The branch pipe of the electromagnetic valve 14 communicates with the second gas pipe 12; the signal output end of the ammonia detector D is connected to the signal input end of the MCU, and the MCU controls the first electromagnetic valve 13 and the second electromagnetic valve 14 to stagger the intermittent On state.

[0017] When the MCU opens the first solenoid valve 13 and closes the second solenoid valve 14, the da...

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Abstract

The invention discloses an agricultural monoammonium phosphate production system alarm device and relates to the field of production safety. To solve the problem of using two ammonia detectors in prior art, the invention provides a scheme of sharing one ammonia detector in back and forth pipelines of a reaction kettle and an ammonia recovery kettle. An MCU controls a first solenoid valve and a second solenoid valve to open in an alternative intermittent manner. The alarm device reduces production cost and wiring difficulty; the two paths of gases are detected through one ammonia detector, so that aging rate does not need to be considered, and correction work is completely avoided; and monitoring and alarming can be realized in an accurate and labor-saving manner.

Description

technical field [0001] The invention relates to the field of production safety, in particular to an alarm device for an agricultural monoammonium phosphate production system. Background technique [0002] Such as figure 1 As shown, the existing agricultural-grade monoammonium phosphate production system mainly includes a reaction kettle A, an ammonia gas recovery kettle B and a solid-liquid separator C. Wet-process phosphoric acid and ammonia gas are fed into the reactor A to react, and the reactants enter the solid-liquid separator C to obtain finished products and other by-products. The ammonia reaction in the reactor A cannot be completely sufficient, so part of the ammonia must be released during the reaction. The released ammonia gas is physically recovered through the ammonia gas recovery tank B and then returned to the reactor A to continue the reaction. An ammonia gas detector D is installed in the back-and-forth pipelines of the reaction kettle A and the ammonia ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08B21/14C01B25/28C05B7/00
CPCC01B25/28C05B7/00G08B21/14
Inventor 黄亦
Owner 嘉施利(荆州)化肥有限公司
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