Is boiler ash removal and slag removal a piece of equipment

Is it a device or a system?

If it's a device, it's certainly not a device. The equipment for slag removal includes cold ash hopper, slag discharge (fishing) machine, slag crusher, etc. Ash removal equipment includes electrostatic precipitator (or bag type, dry cyclone, wet cyclone dust collector, etc.), pneumatic or hydraulic ash conveying equipment, ash yard or ash storage warehouse, etc.

There are various ways of slag removal and dust removal in power plant boilers, the most typical is slag removal by wet slag removal machine, and electrostatic precipitator is used to clean fly ash in flue gas.

If we talk about the system, in many power plants, slag removal and ash removal are set up as the same sub-field or department to be responsible, and the slag and ash removal work is responsible for a team. There are also separate, the centralized control operation team is responsible for slag removal, and another sub-site is responsible for dust removal (ash) and desulfurization.

The above is an example of a thermal power plant, if it is another industrial boiler, it is not very clear.

Of course not!The slag removal of coal-fired boilers is to remove the solid impurities after the coal is burned, and it is carried away with the chain and taken away by the slag remover (water injection and cooling).

Ash removal is to remove the solid particles carried away by the flue gas, so it is also called dust removal. It is divided into water treatment and non-water treatment, and is also divided into water film dust removal, cyclone dust removal, electrostatic bag dust removal, etc.

During the operation of the boiler, fouling and coking are often generated. Coke and scale accumulate on the heating surface of the boiler, which greatly reduces the thermal efficiency of the boiler. Deterioration of furnace condition makes cinders agglomerate, blocks the flue, causes coal waste, and increases the labor intensity of operators.

If the scale and coke are not cleaned in time, it will cause furnace shutdown or form a more serious safety hazard.

Zhongke Energy descaling and decoking additives are used to remove all kinds of scale and coking formed on the heating surface and flue of the boiler, and carry out physical and chemical effects with coke and scale through high-temperature decomposition products, so that the highly corrosive sulfate, nitrite and oxide slag form a low eutectic mixture, so that the stubborn coke and scale are loose and fall off. So as to prolong the maintenance period of the boiler and the service life of the equipment, and reduce the labor intensity of workers.

There are only two types of slag removal methods in power plants: dry slag removal and hydraulic slag removal.

Thermal power plant referred to as thermal power plant, is the use of coal, oil, natural gas as fuel to produce electric energy plant, its basic production process is: fuel in the boiler burning heating water into steam, the fuel chemical energy into heat energy, steam pressure to drive the steam turbine rotation, heat energy into mechanical energy, and then the steam turbine to drive the generator to rotate, the mechanical energy into electrical energy.

At present, the boiler (pulverized coal furnace) of the power plant is solid slag discharge, and the large cinder is discharged from the slag mouth at the bottom of the furnace, cooled by immersion in water, mechanically broken into granules, and then washed to the sediment tank with hydraulic power. Cinders can be used in a comprehensive manner.

The coal throwing furnace and chain furnace of small and medium-sized power plants are mainly used to produce slag and be hauled by manpower. Circulating fluidized bed boilers are similar to pulverized coal furnaces.

There are only two types of slag removal methods in power plants: dry slag removal and hydraulic slag removal, but there are still many types of equipment suitable for these two slag removal methods.

It's not the same thing.

Ash removal is an auxiliary system for boiler operation, which collects the ash produced after the boiler is burned and disposed of in a way.

Ash cleaning means that during the operation of the boiler, such as the heating surface and other equipment, the ash accumulated is cleaned up by some means (such as: soot blowing, flushing, dredging, machinery).

The above two say a lot, in fact, the simplest explanation is: ash removal is the need for mechanical equipment, and ash cleaning is mainly manual, of course, a lot of small equipment will be used, mainly inseparable from human operation.

Desulfurization and dust removal are two completely independent equipment.

Desulfurization mainly includes reaction absorption system, ammonia storage and ** system, by-product refining system, and process water supply system.

Desulfurization is a technical dust sensitivity technique to control sulfur dioxide emissions, and the dust collector can not only remove sulfur dioxide from flue gas, but also produce high value-added ammonia sulfate fertilizer products. The boiler dust removal equipment uses a certain concentration (28% as an example) of ammonia as a desulfurizer to generate ammonia sulfate slurry and transport it to the fertilizer plant treatment system. The amount of ammonia required in the desulphurization process is automatically adjusted by a preset pH control valve and measured by a flow meter.

The ammonia sulfate crystals are crystallized by saturated ammonia sulfate slurry in the desulfurization dust collector to generate suspended particles with a weight ratio of about 35%. These slurry quilts are pumped to the treatment plant, where they are dehydrated in primary and secondary stages, and then sent to the fertilizer plant for further dehydration, drying, condensation and storage.

The boiler is a kind of energy conversion equipment, the energy input to the boiler is chemical energy and electrical energy in the fuel, and the boiler outputs steam, high-temperature water or organic heat carrier with a certain thermal energy. The original meaning of pot refers to a container of water heated on a fire, and a furnace refers to a place where fuel is burned. The hot water or steam produced in the boiler can directly provide the required heat energy for industrial production and people's lives, and can also be converted into mechanical energy through steam power devices, or converted into electrical energy through generators.

The boiler that provides hot water is called a hot water boiler, which is mainly used in life, and there are also a small number of applications in industrial production. The boiler that produces steam is called a steam boiler, often referred to as a boiler, and is mostly used in thermal power stations, ships, locomotives and industrial and mining enterprises.

The boiler ash cleaner can quickly remove the ash on the heating surface of various boilers, which not only eliminates the trouble of ash cleaning; Moreover, it can save more than five percent of fuel, and the energy-saving effect is remarkable, and users generally reflect that it is the latest and most efficient energy-saving product.

It can be used for industrial boilers, heating boilers, various ships, fire tubes, boilers, etc. It can also be used for ash cleaning of various types of boilers of oil and gas.

Here's how to use it:

1. The coal-fired boiler can directly put the medicine into the furnace fire area.

2. The best effect of concentrated dosing must be concentrated according to the prescribed dosage.

3. For pulverized coal furnaces, boiling furnaces and oil furnaces, the medicine can be directly put into the hot fire area.

4. Use according to the quantity specified in the dosage and the number of doses.

5. For the newly operated boiler without ash scale, the dosage is 2 thousandths of the fuel consumption 5.

6. For the boiler that has formed ash scale, the initial dosage is 2-3 times that of normal. Generally, in about a week, the ash can be removed, and the normal dosage can be restored at this time.

Wenzhou Nanxing Environmental Protection has been specializing in boiler cleaning, descaling and cleaning for 16 years, according to their information

Industrial and civil boilers use the latent calorific value of high-temperature flue gas to heat water, oil, gas and other working fluids. When the flue gas flows through the heat exchanger, the heat is transferred to the heat exchanger tube bundle, and then to the working fluid through the metal pipe wall, whether the heat conduction is good is related to the basic function of the furnace, but the flue gas contains a large number of tiny ash particles, due to the surface tension of the ash particles, the viscous force between the particles and the heat exchanger tube wall, molecular adhesion, electrostatic attraction and chemical affinity, etc., it is inevitable to attach and accumulate on the heat exchanger heating surface tube wall, that is, to form coking, slag and ash layer. The thermal conductivity of these deposits and scaling is twice lower than that of the metal pipe wall, which seriously affects the heat conduction inside and outside the heating surface and reduces the heat transfer efficiency of the heat exchanger.

The result is a decrease in the thermal efficiency and output of the furnace, which increases energy consumption due to the loss of heat energy through smoke exhaust. At the same time, these ash and scaling reduce the tube gap channel of the heat exchanger tube bundle, resulting in the increase of the heat exchanger tube bundle and the thermal resistance of the flue, and even block the flue in serious cases, resulting in forced shutdown of the furnace.