The coal tar residue treatment equipment adopts a pyrolysis process to heat the coal tar residue at high temperature under the condition of no oxygen or lack of oxygen, so that the macromolecules in the organic matter are decomposed into small molecules of combustible gas, liquid fuel and coke, so as to obtain combustible gas, coal tar and coke and other chemical products.
Coal tar residue treatment process
1. Feeding: Coal tar residue is packed in tons, and the coal tar residue needs to be lifted up and put into the hopper by crane when feeding, and the hopper is connected to a screw feeding system, which can send the coal tar residue into the cracking furnace.
2. Pyrolysis: Start the burner for preheating, preheating takes about 2 hours, when the temperature of the cracking furnace reaches 180°C, the coal tar residue begins to crack in the cracking furnace.
3. Oil: When the pyrolysis reaction of coal tar residue occurs in the pyrolysis furnace, the oil and gas begin to be generated, and the oil and gas first pass through a buffer tank, which is used to separate the heavy oil residue and light oil and gas; when the light oil and gas continue to enter the condensation system, the light oil and gas is cooled into a liquid in the condensate system, that is, the liquid fuel oil, and then flows into the oil storage tank.
Coal tar residue treatment process
Our condensing system is composed of vertical condenser + horizontal condenser + condensing tower, with a condensation area of up to 100 square meters to ensure that the oil and gas are fully cooled and the oil yield is improved.
4. Slag discharge: After the pyrolysis of coal tar residue, the residue in the cracking furnace is carbon black, mud residue, etc., the carbon black residue is discharged through the automatic water-cooled slag discharge system, and then the carbon black residue will be stored in the carbon black tank.
5. Tail gas desulfurization and purification: after condensation treatment, there are still some non-condensable combustible gas residues, these non-condensable combustible gases first pass through the water seal device, the water seal is used to purify the non-condensable combustible gas, and at the same time can also prevent tempering, and the water-sealed combustible gas is collected through a special pipeline and sent to the combustion chamber of the pyrolysis system as fuel for heating.
6. Flue gas desulfurization and dust removal and purification: The high-temperature flue gas generated after the incineration of non-condensable combustible gas is first cooled by flue condensation, and then discharged up to the standard after multi-stage purification such as desulfurization tower, denitrification tower, dust removal, and activated carbon adsorption.
Coal tar residue treatment equipment
A complete coal tar residue treatment equipment is composed of several parts, such as feeding system, pyrolysis system, condensation system, heating system, slag discharge system, flue gas treatment system and electronic control system, among which the pyrolysis system is the core of the whole set of coal tar residue treatment equipment.
3D drawing of coal tar residue treatment equipment
The pyrolysis furnace system of coal tar residue treatment equipment is a horizontal drum structure, which is composed of a furnace sleeve, a thermal insulation shell and a base. The two sides of the furnace are respectively the inlet and outlet, the inside is welded with a 15cm high spiral guide trough, and there is a vent valve at the top, because the coal tar residue treatment equipment adopts a micro-negative pressure oxygen-free or less oxygen pyrolysis process, after the loading is completed, the gas in the furnace needs to be slowly pumped away with negative pressure equipment to form a micro-negative pressure, and after the pyrolysis is completed, it should be opened to restore the normal pressure in the furnace; Sound absorption and noise reduction effects: The furnace is placed on the base with tugboat and placed on the furnace chamber, and the coal tar residue in the furnace is heated by external heating to produce oil and gas.
Coal tar residue treatment equipment pyrolysis furnace details display
Technical characteristics of coal tar residue treatment equipment
1. Clean and environmentally friendly: The coal tar residue treatment equipment is synchronously equipped with flue gas purification system (desulfurization and dust removal tower, water film dust collector, pulse dust collector) and tail gas purification system (desulfurization and deodorization tower) to ensure that the waste smoke and exhaust gas and other waste emissions meet the national standards, clean and environmentally friendly
2. Energy saving and consumption reduction: The collection and utilization of combustible gas can meet the heating supply of the pyrolysis system, and no additional heat source is required, saving energy, reducing emissions.
3. Anti-coking sticking wall: The inner liner of the main furnace of the coal tar residue treatment equipment is made of stainless steel, which has better corrosion resistance, and the inner wall is specially equipped with a decoking device, that is, the scraper and the breaking device are welded on the inner wall of the main furnace, and with the rotation of the main furnace, the scraper and the breaking device will continuously lift and break up the oil sludge in the furnace, so as to prevent the coking of the sticking wall.
4. Wide adaptability to materials: strong adaptability and inclusiveness of raw materials, the technology is applied to waste tires, waste plastics, oily sludge, aluminum-plastic, domestic garbage, medical waste and other solid waste and hazardous waste treatment fields, one machine is multi-purpose.
5. Intelligent automation: The coal tar residue treatment equipment has a high degree of automation, and through the PLC automatic intelligent control system, each single equipment and process control point is monitored in real time, so as to truly realize intelligent and safe operation and have low staffing requirements.
Coal tar residue treatment equipment
Technical parameters of coal tar residue treatment equipment
| Model | DY-10 | DY-12 | DY-15 | DY-C-30 | DY-C-50 |
| Throughput (tons/day) | 10 | 12 | 15 | 30 | 50 |
| Process mode | Intermittent | Continuous | |||
| Items can be processed | Coal tar residue, oil sludge, tires, plastics, aluminum-plastic, etc | ||||
| The end product | Fuel oil, carbon black, combustible gas, etc | ||||
| Main furnace size | Ф2600mm×L6600mm×δ16mm | Ф2800mm×L6600mm×δ16mm | Ф2800mm×L8350mm×δ18mm | Ф1600mm×L24000mm×δ16mm | Ф2000mm×L26000mm×δ18mm |
| Main furnace material | Q245R/Q345R, Customized Stainless Steel Furnace Sleeve (304/316/310S) | ||||
| power | 4kw | 4kw | 7.5kw | 15kw | 22kw |
| structure | Horizontal slewing | ||||
| Heating fuels | Fuel oil, natural gas, coal, wood, etc | ||||
| Type of heating | Direct heating | Direct/indirect heating | |||
| Type of cooling | Circulating water cooling |
Coal tar residue treatment equipment end product
1. Fuel oil: The fuel oil refined from coal tar is beige (or orange), clear and translucent, with high calorific value, which can be widely used in the field of industrial and civil fuel, and can also partially replace diesel for power use, which is very widely used.
2. Carbon black: equivalent to secondary coal or coal dry stone, with a certain calorific value, used for industrial heating.
3. Combustible gas: After the combustible gas is purified, it is collected through a special pipeline and sent to the combustion chamber of the pyrolysis system as fuel for heating, which can be recycled.
Coal tar residue treatment equipment end product
Coal tar residue environmental protection treatment plan
1. Environmental protection treatment of waste smoke: the waste smoke generated in the combustion process of non-condensable combustible gas enters the desulfurization and dust removal tower together with the fuel combustion tail gas, and the dust-containing flue gas enters the desulfurization tower from the lower part of the cylinder through the induced draft fan, and after four sprays and four layers of ceramic filler, the flue gas is evenly dispersed by the filler, and the gas is fully mixed with the added liquid in the filler through layer by layer spraying, so as to achieve the purpose of desulfurization and denitrification. The dust particles are separated by centrifugal force, and the smoke and dust are adsorbed by the water film layer produced by the spray, flow to the bottom cone with the water, and are discharged through the dust discharge port to achieve the purpose of dust removal.
2. Environmental protection treatment of waste gas: The exhaust gas mainly comes from the exhaust gas generated in the pyrolysis refining process, which contains a small amount of polluting gases, such as H2S, NOx, COx, SOx, etc. After the tail gas is deodorized and purified by the desulfurization, desulfurization and deodorization tower, it can be returned to the pyrolysis furnace as fuel to help customers solve the problem of high odor in the refinery.
Environmental protection system for coal tar residue treatment equipment
3. Wastewater environmental protection treatment: In the pyrolysis and refining process, the coal tar residue treatment equipment uses circulating water for both cooling water and dust removal water to ensure that there is no wastewater discharge in the production process. In addition, the condensing equipment adopts a tubular condenser design, with oil in the pipe and water outside the pipe, with zero contact between water and oil, and the cooling water can be recycled without waste water.
4. Environmental protection treatment of waste residue: The carbon black slag remaining in the pyrolysis furnace is transferred and transported from the pyrolysis area to the carbon black deep processing area through a wind-sealed pipeline, and the pulse bag filter (dust removal efficiency is more than 99.9%) is equipped to collect the uncaptured carbon black and discharge it through the exhaust cylinder to reduce the dust pollution at the refining site.
Coal tar residue treatment equipment market application
The coal tar residue treatment equipment developed and designed by Henan Dongying has been widely used in many project sites in Shaanxi, Shanxi, Inner Mongolia and Hubei in China, and has been tested by the market. As shown in the figure below, this is 8 sets of oil sludge and oil residue treatment equipment ordered by Shaanxi customers in our company, and Dongying engineers are in the final stage of installation and commissioning of the equipment, which will be officially put into production in the near future.
Shaanxi oil sludge oil residue treatment equipment installation site
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