Belonging category：Cremation equipment Publishing Date：20240114 views：2
Standard requirements for technical parameters of funeral home cremation tail gas treatment equipment.
1. Main technical parameters
1. 1 The tail gas equipment of cremator is composed of high-efficiency air-cooled cooler, Mars interceptor, flue gas dryer, primary dust collector (double cyclone dust collector), desulfurization and deacidification system, bag dust collector system, activated carbon adsorption device, bypass system, smoke exhaust system, compressed air injection system, inverter air induction system, muffler, chimney and PLC control system. The whole system consists of 3~4 modules. Products should be clean, compact, occupy less land, have good dust removal effect, good appearance effect, convenient installation, simple operation, easy maintenance, no secondary pollution and strong practicability. Dust particles, sulfur dioxide, nitrogen oxides, carbon monoxide, heavy metals, smoke blackness, odor and other environmental indicators have reached the national standards.
1.2 Material requirements of the equipment: the whole product is made of air-cooled integrated stainless steel, which has long service life, corrosion resistance and oxidation resistance.
1. 3 overall dimensions of high-efficiency air-cooled cooler: lxwxh = 1800mmx1530mmx4000mm (10%). Overflow area > 0. 13㎡, cooling mode is forced convection cooling, cooling area > 25.1㎡, cooling fan is low-noise external rotor centrifugal fan, with power of 3Kw, air volume of 5619-7312m3/h and total pressure of 934—831Pa.
1.4 Mars interceptor: the overflow area is > 0. 314m2, and the Mars interceptor with the interception area of > 7. 85m adopts automatic pulse ash cleaning (equipped with oil-water separator).
1.5 overall dimensions of primary dust collector (double cyclone dust collector): lxwxh = 1800mx700mmx4100mm (10%).
1.6 overall dimensions of bag dust removal system: lxwxh = 3400mmx3680mmx4890mm (10%). Filter area > 11 decoration 2 (soil 1()%), wind speed <
1. Om/s, equipment resistance W1200Pa. Specification and quantity of cloth bags: 6130mm x 2200mm (10%) x 120 pieces. Set up the emergency bypass of the anti-high temperature burning cloth bag (equipped with electric/pneumatic air valve), pneumatic butterfly valve: 4)400 mm, temperature W600 degrees, pressure: 0. 6Mpao.
1. 7 overall dimensions of activated carbon adsorption device: lxwxh = 2280mmx500mx2450mm (10%) o.
1.8 Smoke exhaust system: chimney 6xh = 6XH=N400mmX (8000mm~ 12000mm), national standard stainless steel with thickness greater than or equal to 3mm. Induced draft fan: power: 15Kw, flow rate: 12000m/h, pressure: 4000Pao.
1. 9 overall dimensions of desulfurization and deacidification system: lxwxh = 1260mmx520mmx200mm (10%). Motor power: 1. 5Kw, flow rate: 250m/h, pressure: 27Kpa, fully automatic vacuum high-pressure powder conveyor is used.
1.10 Electrical control system: There are two control modes: automatic control and manual control. System with remote fault maintenance function. And can realize that integrate control with the firecracker.
1.11 Screw air compression and pulse system: N power 7. 5Kw, no vibration, low noise, reliable operation and long service life, matching the original cremation equipment.
(The gas storage tank is designed according to the pressure vessel standard, equipped with desiccant and filter). Gas storage package: 0. 8m3, equipped with pressure-regulating oil-water separator. Equip pulse
Impulse generator: 20-door pulser control, 12-way 24DV pulse solenoid valve. Equipped with freeze dryer and precision filter system. Indicate the number of air compressors. In principle, one set of tail gas is used. On the premise that the number of tail gas equipment and gas consumption must be met, the bidder can reasonably equip the number of air compressors.
2. System performance of main components
2.1 High-efficiency tubular air-cooled heat exchanger: made of stainless steel (thickness ≥3 mm) and equipped with primary dust removal device. Main functions: high temperature flue gas inlet of combustion chamber
After entering the quencher, the temperature is rapidly reduced from above 1000°C to below 180°C by air cooling, which jumps the temperature generation space of dioxins and avoids the generation of harmful substances such as dioxins. High-efficiency air cooling is adopted for cooling, which does not produce secondary pollution, and observation holes are reserved for easy maintenance.
2. 2 Primary dust removal system:
(1) Made of stainless steel with a thickness of not less than 3mm. Flow area > 0. 314 ㎡, Mars interception area > 7. 85 ㎡.
(2) The cyclone combined Mars catcher separates the particle dust from the airflow by the principle of cyclone centrifugal falling, and captures the Mars in the dust at the same time, thus preventing the Mars from being sucked into the bag dust collector and burning the bag.
2. 3 deacidification and desulfurization unit:
(1) Stainless steel (thickness ≥3 mm) is used for corrosion resistance and high temperature resistance. There must be thermal insulation and thermal insulation technical measures. The surface temperature of the device should not be higher than room temperature by 5 degrees, and it will not be penetrated by gas corrosion for 10 years. Fully automatic vacuum high-pressure powder is used to convey gas, and the motor power is 90W. Power: 1.5KW Flow: 250m3/h. Pressure: 27Kpa.
(2) Combined desulfurization and deacidification process, in cold season, alkaline dry powder or alkaline slurry is used to fully contact and produce neutralization in the way of co-current or counter-current to neutralize the acid gas in the gas. In warm weather season, alkali liquor is sprayed evenly in acid-containing flue gas through atomizing nozzle, which fully contacts and produces neutralization effect to neutralize acid gas in the gas. The basic structure consists of two parts: automatic feeding device, alkali liquor tank, spraying device, material box, pipeline and so on.
2. 4 Bag dust removal system:
(1) The structure of bag dust collector: it must be composed of box, bracket, maintenance frame, filter bag frame, filter bag, deflector, dust collection chamber, electromagnetic pulse device, ash cleaning program control, butterfly valve for opening and closing tail gas inlet and outlet, etc.
(2) The filter is made of stainless steel (thickness ≥3 mm), the filtering area is more than 110 μ m, the wind speed is VI. Om/s, and the equipment resistance is W1200Pa. P84 cloth bag, 260°C high temperature resistant filter bag and N120 cloth bags are adopted. Model: 130X2200mmX 120.
(3) The emergency bypass device for bag protection is made of stainless steel pipes and equipped with automatic air valves/pneumatic air valves.
(4) The filter bag is made of high-quality high-temperature resistant materials.
(5) The removal effect of filter bag on various pollutants: the removal effect of particulate matter (dust) must reach 99%, the removal effect of various heavy metal pollutants should not be less than 80%, and the removal rate of highly toxic organic pollutants should not be less than 70%.
(6) Bag dust collector shall have concrete and feasible technical measures and technological measures to prevent condensation.
2. 5 compressed air injection system:
(1) The air compressor uses a rod air compressor (which must be equipped with a cold dryer) N7.5KW.
(2) Air storage tank: 0. 8m, which meets the pressure vessel standard.
(3) Combined dryer.
(4) High precision filter.
2. 6 Activated carbon adsorption device:
(1) Stainless steel (thickness ≥3mm) is integrated with bag dust collector, which is divided into three-layer drawer type, which is convenient for replacing activated carbon, and honeycomb activated carbon is used.
(2) The removal rate of dioxin compounds and heavy metals is over 95%.
2. 7 Technical requirements for fans and chimneys:
(1) The induced draft fan shall be high temperature resistant, with a motor power of 18. 5KW, and the working pressure of the furnace can be guaranteed to be around -100pa when the furnace is empty.
(2) The chimney is made of stainless steel, 6N400mm, with a height of 8000mm~ 12000mm, and a detection hole is reserved at 4000mm of the chimney.
2.8, connecting pipes:
(1) The whole system is made of high-quality stainless steel, and all emergency pipeline valves must be resistant to high temperature, not less than 500 C. The whole system requires complete sealing and no air leakage.
(2) The pipeline is connected by flange, which is convenient for disassembly. The flange is made of high quality carbon steel.
(3) Pipeline connection shall be air-tight, and sealing rings shall be installed for flange connection, and then bolts and nuts shall be used to tighten the connection.
(4) Elbow welding is used for pipeline steering, and 90 is used for right-angle steering. Elbow welding method for connection, the elbow and 90. The elbow is made of high-quality stainless steel.
2.9. Electrical control system of tail gas treatment system:
(1) The tail gas treatment system shall have three modes of automatic, semi-automatic and manual control, which can be freely switched without interference, and the flue gas can be switched to the chimney of the cremator for discharge.
(2) Touch display screen and PLC computer electric control system are used, which have the functions of leakage protection, multi-stage temperature display, over-temperature automatic alarm and automatic switching, and have the function of synchronous equipment operation signal display.
(3) Use PLC and its modules, and use a color touch screen of more than 10 inches.
(4) The control system should be compatible with the control system of the cremator.
(5) The control system shall be protected against undervoltage, overload and alarm, and shall be provided with operation screen or indicator light, synchronous readable data display, various detection elements and real-time feedback, etc.
(6) Adopt qualified lightning protection measures as a whole to ensure the safe operation of the equipment.
(7) The whole equipment has qualified explosion-proof measures to ensure the safe operation of the equipment.
(8) The bag dust removal system adopts screw air compressor, equipped with air filtration and automatic induction pulse dust removal device, which can automatically detect the stored ash quantity and automatically clean the filter bag.
3. Effect of tail gas treatment system after installation
(1) The substance content of the treated tail gas must meet the current national emission standard for tail gas of fuel cremators (GB13801-2015 emission standard).
(2) No black smoke shall be emitted, reaching Grade 0 in Lingemann. When the air pressure is low or the air water content is high, no smoke can be formed around the museum. There must be no floating objects in the tail gas.
(3) The noise of the tail gas treatment equipment 10 meters away is below 65dB. No secondary pollution such as sewage, dust and noise can be produced.
(4) The noise meets the environmental protection requirements of national standards.