Quenching and tempering device for cooling high-temperature fume

A technology of high-temperature flue gas, conditioning equipment, applied in heat exchange equipment, high-efficiency regulation technology, lighting and heating equipment, etc., can solve the problems of low efficiency of high-pressure pump, affecting dust removal effect, dust emission, etc., and achieve high equipment failure rate , The effect of reducing the volume of flue gas and reducing environmental protection costs

CN101596389AInactive Publication Date: 2009-12-09SHENYANG XINCHENG TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2009-12-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a quenching and tempering device for cooling high-temperature fume, comprising a two-fluid electrical appliance controller, a water path and an air path arranged between a high-temperature fume inlet and a high-temperature fume outlet. The device of the invention is characterized in that a low pressure pump is arranged in the air path, a low pressure air path is combined into a water pipeline before a spray gun, two transducers are arranged to adjust the pressure and flow of a water pump and an air pump, the nozzle bore diameter is phi 6-7mm, and the spray particle diameter is smaller than 300 micrometers; a temperature sensor is respectively arranged at a wetting tower inlet and the fume outlet, and the outlet temperature is controller to 130-150 DEG C; an operation program is controlled to calculate the temperature difference of the fume inlet temperature and the fume outlet temperature, tower volume and spray fall height; two transducers are used for controlling the water pump and the air pump to automatically adjust operation power when low air pressure is 0.4-0.6MPa, and air flow quantity and water flow quantity are 5-25T / H. the particle diameter of sprayed water spray is small and even, which can better realize precise control to temperature and reduces atomization particle residence time and wet bottom danger. The dust removal device designed by the invention increases fume density and volume, lowers speed and improves dust removal function. In particular, the spray granularity is small, which can obviously control temperature and humidity, lower discharge Dioxin and furan mixed in dust and reduce environment protection cost.
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Description

technical field

[0001] The invention relates to a treatment facility for discharging flue gas, and a high-temperature flue gas cooling and tempering device. Background technique

[0002] At present, the high-temperature flue gas cooling equipment on the market basically uses high-pressure water, through special nozzles, and relies on the ultra-high pressure of water to perform atomization. This kind of equipment has short lifespan, high failure rate, low efficiency of high pressure pump and high energy consumption. Pressure changes lead to unstable performance and poor atomization effect. The spray diameter is 300-600 microns, and the longer residence time is likely to cause wet bottom. Due to the uneven size of spray particles and the lack of effective control measures for temperature and humidity, dust is likely to be discharged with the flue gas, affecting the dust removal effect. If the amount of flue gas increases, the cooling system equipment must be expanded, and ma...

Examples

Embodiment Construction

[0017] Example 1 of the high temperature flue gas cooling and tempering equipment is used in the production of cement plants. The flue gas emission requires the outlet temperature of the humidification tower to be maintained within the temperature range of 130°C to 150°C.

[0018] see figure 1 : The technology of the present invention is the water pipeline 6 and the gas pipeline 7 set between the high temperature flue gas inlet 9 and the outlet 10 of the humidification tower, and the inlet temperature sensor 1 and the outlet temperature sensor 5 are set in the humidification tower, which is characterized in that the gas pipe Set low pressure pump in way 7, see Figure 4 : Gas outlet valve 36, gas shut-off valve 42, gas pressure sensor 41, electromagnetic flowmeter 40, gas hand valve 43 and solenoid valve 44, detection instrument with water pressure sensor 37, control system PLC and inverter are installed in dual The fluid spray cooling control cabinet 39 implements the progr...