In the systematic control of the new dry cement consumption line, the gaseous composition (O2, NO, CO, CO2) of the smoking chambers, the export of synthetic furnaces, and the export of primary cylinders are important. For example, if the concentrations of oxygen, carbon monoxide, nitrogen oxides were known, the ventilation and suffocation conditions in the kiln could be accurately determined and adjusted in a timely manner. However, in a number of field studies, experts on the Network found that the large local cement industry ' s on-line flue gas profiler, which is particularly important in the smoke room, had been damaged to the point that it was never installed after the damage. This is due to the harsh operating environment of the smoke room, which makes it difficult to ensure a good working state when the smoker's probe is in the smoke room for long periods of time. And the maintenance of the online flue gas profiler is complex and needs to be done.

Dust detectors, also known as dust gauges or dust testers, are used primarily to detect dust concentrations in ambient air. The variety of dust detectors is divided into laser dust meters, online serial monitors, portable dust meters, etc., and are widely used in disease preparedness and control centres, mines, metallurgy, power plants, chemical manufacturing, sanitary supervision, environmental protection, environmental online monitoring, etc. The communication protocol selects the RTU method of the MODBUS protocol, and the RRU mode is used under the RTU method. Messages are sent at least 3.5 characters at the end of the period. When the first domain (address domain) is accepted, each device is decoded to determine whether it is sent to itself. After the last transfer character, the end of a message is marked by a suspension of at least 3.5 characters at a time. One.

Dust detectors, also known as dust meters or dust testers, are primarily used to detect dust concentrations in ambient air. They are of the following types: laser dust meters, online continuous monitoring dust monitors, portable dust meters, etc., and are widely used in disease prevention and control centres, mines, metallurgy, power plants, chemical production, sanitary supervision, environmental protection, environmental online monitoring, etc. Note that the communication lines RS485 need to be shielded by two winch lines and, if necessary, 2 250 terminals to match electrical resistance. 2. The presence of non-conductive dust and non-corrosive metals and damaged insulation to prevent direct light and rain showers using the environment. 3. Do not apply this product to the extremes of the temperature and humidity (which will cause drift for long periods of time working in a high humidity environment of more than 90% RH). 4. Prevention

The application of flue gas analyzers in the chemical industry has been widespread and, as a process control instrument, has provided important data for the control and guidance of the chemical consumption process. Process control is made more timely and precise, and optimizes and maximizes the benefits of consumption. What should the choice of a suitable air analyzer be premised on? I. What gases are first to be detected by selecting a gas detector that understands one ' s needs? In what environment? Portable or fixed? And other side effects. These causes usually require reflection. Otherwise, it would appear that an oxygen detector was intended to buy an ozone detector, and that would cause a major urn, without delay, to cause unnecessary economic loss. II. UNDERSTANDING THE USE OF USE REQUIREMENT GAS Detectors

Owing to the diversity of the gases analysed and the diversity of the principles used for profiling, the flue gas analyzers are numerous. Thermal conductor flue gas analyzer, electrochemical smoke analyzer and infrared absorption profiler are commonly used. A pneumatic gas analyzer of a physical type, a thermoconductor. It calculates the content of certain components of the mixture based on the principle that different gases have different thermal conductivity. This is a simple and robust profile, with a larger variety of gases to be applied and a fundamental one. However, the direct calibration factor for the gas is difficult to compare, so it is common practice to convert changes in the gas-conductor coefficient to resistance changes, which are then measured by a bridge. Thermally sensitive elements of the thermal conductor flue gas analyzer are mainly semiconductor sensitive elements and metal electrical resistance wires. Semiconductor sensitive.

The sampling system for the flue gas profiler is divided into a routine sampling system and a heating sampling system. 1) Custom sampling systems: general choice of acid-resistant alkalis, high-temperature plastic tubes to ensure that gases are not adsorbed. Status of application: short-duration tests with low water content; Short-term testing of samples of gases without acid gases. 2) Heating sampling systems: this is the integration of heating functions based on the customary sampling system to ensure that the sample temperature is above 120°C during the sampling process, and that no water condensation is present during the sampling process. Status of application: sample tests with high water content; (b) Long-term online testing; Tests of acid gas content (e.g. NO2, SO2); 3 Pneumatic gas treatment systems: 1) soda separators: remove liquid moisture, first and foremost the handheld type selects this dewater treatment system.