CN220977323U - System for preparing fiberboard from oily sludge solid residues - Google Patents
System for preparing fiberboard from oily sludge solid residues Download PDFInfo
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- CN220977323U CN220977323U CN202321936249.4U CN202321936249U CN220977323U CN 220977323 U CN220977323 U CN 220977323U CN 202321936249 U CN202321936249 U CN 202321936249U CN 220977323 U CN220977323 U CN 220977323U
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Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The utility model discloses a system for preparing fiberboard by using solid residues of oily sludge. The utility model relates to the field of solid waste and environmental protection, and provides a novel treatment method and a novel solution for recycling of oil-containing sludge. The utility model provides a whole set of high-value utilization process of oily sludge, which comprises the following steps: firstly, preprocessing oily sludge, and separating water, oil and solid three phases in the oily sludge to obtain three-phase components; ball pressing is carried out on the obtained solid phase through a ball pressing machine, and solid products obtained after ball pressing and drying are sent into a high-temperature melting furnace to be melted at high temperature; directly carrying out high-speed centrifugal spinning and fiber lifting on the high-temperature melt, solidifying and forming, longitudinally and transversely cutting, and finally cooling and packaging to obtain a fiber cotton plate which can be used for building materials; compared with the traditional oil-containing sludge incineration process, the utility model effectively inhibits the generation of dioxin, reduces the generation of hazardous waste, and simultaneously obtains high accessory value products such as mixed oil, fiber cotton boards and the like.
Description
Technical Field
The utility model relates to the field of solid waste and environmental protection, and particularly provides a system for preparing a fiberboard by using solid residues of oil-containing sludge.
Background
Sources of oily sludge include mainly oilfield sludge, oil storage tank sludge, and residues of crude oil refining processes. Most of the sludge from the oil tank cleanup is discharged to landfill sites and drainage channels, thereby polluting the ground water. The oily sludge can occupy a large amount of land, and chemical components contained in the sludge can reduce the permeability of soil and destroy the growth environment of microorganisms, so that plant roots are rotted and the ecology is destroyed. Once hydrocarbons, asphaltenes, etc. in the oily sludge diffuse into the atmosphere, they can seriously affect human respiratory tract health, especially aromatic hydrocarbons, and have carcinogenesis.
The oily sludge has a high calorific value and contains organic volatiles, which can be made a reusable resource from the standpoint of recovering energy or converting it into fuel.
Pyrolysis gasification is the thermochemical conversion (such as carbonization, pyrolysis, gasification) of oily sludge to produce solid, liquid and gaseous products, which are produced into energy forms that can be recovered, easily utilized, transported and stored as required, and can be used for heating and generating electricity or as raw materials in chemical and other industries. Carbonization, gasification, pyrolysis, liquefaction, or other related thermochemical reactions and processes may be employed depending on the feedstock and the purpose of the heat treatment. Pyrolysis gasification is mainly used in industrial production in moving beds, fixed beds, rotary kilns and fluidized beds. For example, publication No.: patent document CN214791135U discloses a rotary kiln incineration system. The rotary kiln body comprises a base with an inclined mounting surface at the top, bearing seats which are arranged at intervals along the inclined direction of the mounting surface, and racks which are meshed with the toothed rings and are rotatably arranged on the base through the bearing seats, wherein the rotary kiln incineration system adjusts the rotary kiln body to swing reciprocally, so that the movement speed of the oily sludge in the kiln is slowed down, the combustion time is prolonged, the purpose of full combustion is achieved, and the incineration treatment effect of the oily sludge is guaranteed. The publication number is: patent document CN110375310a discloses a pressurized fluidized bed oil-containing sludge incineration system and an incineration treatment method thereof. The fluidized bed incinerator is added with oily sludge to be pressurized and burnt in a fluidized state, and the separated fly ash is used for making bricks; the generated flue gas is subjected to sensible heat recovery and utilization through a waste heat recovery system. The utility model realizes the reduction, harmless and recycling of the oily sludge, and saves energy and reduces emission.
But has the following disadvantages: firstly, the residue generated by the incineration of the rotary kiln can not meet the related emission standard, and when the residue is still dangerous waste, the residue after cooling needs to be further treated so as to meet the related standard requirement. The fluidized bed burns energy-consuming height, can't retrieve oil article resourceful product in the oily mud, and the fly ash and the solid sediment that separate out simultaneously obtain glass body and replace partial building materials to be used for paving through high temperature melting, and the additional value of molten glass body product is low and is difficult to satisfy long-distance transportation and use. In addition, most of the oil sludge has high viscosity and high oil and water content, is treated by adopting a fluidized bed incineration method, has poor fluidization effect, and simultaneously is easy to produce dioxin-like highly toxic gas by incineration, so that the investment cost for tail gas purification is increased.
In view of the above-described shortcomings of the prior art, it is desirable to invent a continuous, efficient, high value-added pyrolysis and high value-added product acquisition system.
Disclosure of utility model
The utility model aims to solve the environmental protection problem in the existing treatment process, and can not be consistent with the recycling utilization of dangerous wastes carried out in the existing country, thereby providing a method capable of utilizing the recyclable resources in the oily sludge, remarkably reducing the emission of waste gas and dioxin in the waste gas, recycling the solid slag generated by pyrolysis into high accessory value products, and simultaneously reducing a large amount of CO 2 greenhouse gases generated by incineration.
The utility model discloses a system for preparing fiber board from oil-containing sludge, which is characterized by comprising a pretreatment unit, a high-temperature melting fiber extraction unit and a fiber board forming unit which are connected in sequence,
The pretreatment unit comprises a storage device and a centrifugal separation device which are connected with each other, wherein the storage device is used for storing oil-containing sludge, and the centrifugal separation device is connected with an outlet of the storage device;
The high-temperature melting fiber extracting unit comprises a high-temperature melting furnace and a high-speed centrifugal device which are connected with each other, wherein the high-temperature melting furnace is connected with a solid product outlet of the centrifugal separation device, the high-speed centrifugal device is connected with a discharge hole of the high-temperature melting furnace, and the high-speed centrifugal device is arranged to enable molten liquid from the high-temperature melting furnace to form fiber cotton;
The fiber board forming unit comprises a cotton collecting device, a pendulum device and a fiber board forming device which are sequentially connected, wherein the cotton collecting device is connected with a discharge port of the high-speed centrifugal device, the pendulum device is connected with the discharge port of the cotton collecting device, the pendulum device is arranged to enable fiber cotton collected by the cotton collecting device to be formed into a cotton felt, the fiber board forming device is connected with the discharge port of the pendulum device, and the fiber board forming device is arranged to enable the cotton felt from the pendulum device to be formed into a fiber board.
Preferably, the fiberboard forming device comprises a forming machine, a curing chamber and a cutting assembly which are sequentially connected, wherein the forming machine is connected with a discharge port of the pendulum device, the curing chamber is connected with the discharge port of the forming machine, and the cutting assembly is connected with the discharge port of the curing chamber.
Preferably, the cutting assembly comprises a first cutter and a second cutter arranged in sequence, the first cutter and the second cutter being arranged to be able to cut the rock wool board exiting from the curing chamber.
Preferably, the first cutter is arranged to be able to cut the rock wool board in a direction perpendicular to the direction of movement of the rock wool board, and the second cutter is arranged to be able to cut the rock wool board in the direction of movement of the rock wool board.
Preferably, the cutting speed of the first cutting machine is 2-10 m/min, and the cutting speed of the second cutting machine is 1-8 m/min.
Preferably, the temperature in the curing chamber is 150 ℃ to 300 ℃.
Preferably, the system further comprises a cooling unit connected to the fiberboard forming unit for cooling the fiberboard prepared by the fiberboard forming unit.
Preferably, the cotton collecting device comprises a cotton collecting machine, the cotton collecting machine comprises a rotary roller, a brush is arranged on the outer surface of the rotary roller, the cotton collecting machine is arranged to collect the fiber cotton coming out of a discharge hole of the high-speed centrifugal device through rotation of the rotary roller and the brush, and the rotating speed of the rotary roller is 300-800 r/min.
Preferably, the pretreatment unit further comprises an organic matter anaerobic pyrolysis device, the organic matter anaerobic pyrolysis device comprises an anaerobic pyrolysis furnace and an oil gas cooling purification group, the anaerobic pyrolysis furnace is connected with a solid product outlet of the centrifugal separation device, and the oil gas cooling purification group is connected with an oil gas mixture outlet of the anaerobic pyrolysis furnace.
Preferably, the organic matter anaerobic pyrolysis device further comprises a pyrolysis gas recycling system, one end of the pyrolysis gas recycling system is connected with a non-condensable gas outlet of the oil gas cooling and purifying group, and the other end of the pyrolysis gas recycling system is connected with the anaerobic pyrolysis furnace and/or the high-temperature melting furnace.
The utility model has the advantages that:
After the pretreatment is adopted to treat the oily sludge, oil energy can be obtained, and meanwhile, the direct incineration of the oily sludge can be avoided to generate a large amount of dioxin.
The high-temperature melting furnace only carries out further combustion on a part of inorganic matters containing a small amount of organic matters which are difficult to separate, so that the problem that a large amount of waste gas is generated by directly burning primary oily sludge is greatly reduced, meanwhile, the high-temperature melting furnace contains no or only a small amount of organic matters, the generation of dioxin can be effectively inhibited, and the generation of hazardous waste fly ash can be stopped. The feeding amount of inorganic matters in the high-temperature melting process is reduced, and the energy consumption problem of the whole high-temperature melting system is greatly reduced.
Waste such as oil-containing sludge can be obtained at a lower price, and the cost of the produced inorganic fiber board is relatively low, so that the economy thereof may be higher.
The high-temperature melting fiber extracting unit can realize the high-temperature melting of solid matters generated by pyrolysis, and inorganic matters are converted into non-toxic high-added-value fiber products, so that the fiber extracting unit can be used in building materials and industrial high-temperature-resistant high-strength required products, and promote the development of recycling economy.
The waste is converted into high-quality building materials, so that the energy consumption of quarrying and logistics links can be reduced, the carbon emission is reduced, and the low-carbon development is facilitated.
The oily sludge is converted into the environment-friendly building material, so that diversified application scenes can be provided, and the development of the environment-friendly building material is further promoted.
The whole process is organically combined together, so that on one hand, the problem that inorganic matters and water carry away a large amount of heat due to direct incineration of oil-containing sludge can be effectively avoided, and the energy utilization rate of the whole system is low; on the other hand, the method solves the pollution problem caused by direct incineration of the oily sludge, accords with the current policy of separating and recycling the oily sludge in China, obtains energy products such as fuel oil, fiber and the like with high added value, thoroughly realizes the complete recycling of hazardous wastes of the oily sludge, and on the other hand, the oily sludge residues replace other raw materials, so that the consumption of mineral resources can be reduced, the purpose of saving the resources is achieved, and the method is beneficial to improving the sustainability.
Along with the continuous enhancement of environmental protection requirements, the popularization of environment-friendly building materials has become the current trend, and the environment-friendly building materials prepared from the oily sludge residues can meet the environmental protection requirements.
The method can promote the local production industry to upgrade and promote the regional economic development by developing the green environment-friendly building material industry in a plurality of fields. The green building material is prepared by utilizing the oily sludge solid residues, so that employment opportunities can be created, and the local economic development is promoted.
Drawings
A schematic diagram of a fiberboard system with oily sludge solid residue preparation in accordance with the present utility model is described below with reference to the accompanying drawings.
In the accompanying drawings:
FIG. 1 is a schematic diagram of a fiberboard system with oily sludge in accordance with one embodiment of the present utility model;
fig. 2 is a schematic diagram of a method for producing fiberboard using oily sludge according to one embodiment of the present utility model.
Detailed Description
Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model.
The utility model relates to a fiberboard preparation system for oily sludge solid residues, which comprises an oily sludge pretreatment unit 10, wherein the pretreatment unit usually adopts hot water washing, pyrolysis, solvent extraction and other treatment modes according to different sources and material differences of the oily sludge, and sometimes adopts one or a combination of treatment modes for treatment, such as oily sludge obtained by petroleum exploitation and obtained by sedimentation in a sewage pool of a combined station, and the pretreatment unit 10 mainly comprises a pumping device, a storage device, a stirring device, a centrifugal separation device and an organic matter anaerobic pyrolysis device;
The pumping device is used for pumping the oily sludge at the bottom of the sewage pool of the combined station to the storage device, and providing the needed materials for the oily sludge pretreatment unit.
The storage device is used for temporarily storing the oily sludge and supplying continuous materials for a subsequent pretreatment system. Obviously, the oily sludge at the bottom of the sewage tank of the combination station can be transported to the storage device for storage in other ways.
The stirring tank corresponding to the stirring device is connected with the storage device and is used for adding medicine into the oily sludge for stirring treatment, water with the volume ratio of 1:2-4 is introduced into the oily sludge, meanwhile, the agent with the total mass not exceeding 5% is added, the temperature of the whole mixing system is controlled to be 65-75 ℃, the stirring time is controlled to be 30-60 min, and full stirring and mixing are carried out in the stirring tank.
The stirring tank is connected with a centrifugal separation device, and the centrifugal separation device is used for further centrifugally separating the fully mixed liquid to obtain water, oil and inorganic matters as main solid components. Preferably, the centrifugal separation device is a three-phase centrifuge. Obviously, no stirring device is arranged between the storage device and the centrifugal separation device, namely the oily sludge stored in the storage device can be directly introduced into the centrifugal device without being stirred and mixed by the stirring device.
The organic matter anaerobic pyrolysis device comprises an anaerobic pyrolysis furnace, an oil gas cooling and purifying group and a pyrolysis gas recycling system, wherein the anaerobic pyrolysis furnace is connected with a solid product outlet of the centrifugal separation device, the oil gas cooling and purifying group is connected with an oil gas mixture outlet of the anaerobic pyrolysis furnace, one end of the pyrolysis gas recycling system is connected with a noncondensable gas outlet of the oil gas cooling and purifying group, and the other end of the pyrolysis gas recycling system is connected with the anaerobic pyrolysis furnace and the high-temperature melting furnace. The inorganic matters obtained in the centrifugal separation device are taken as main solid components and are heated and decomposed in an anaerobic pyrolysis furnace at 300-700 ℃, and the produced oil-gas mixture is sent into an oil-gas cooling and purifying group for cooling through an induced draft fan. The oil-gas cooling purification group comprises a condensing tower, an oil storage tank for storing a liquid mixture obtained by condensation and a gas purification device for desulfurizing non-condensable gas after condensation treatment, and the oil-gas mixture is condensed in the condensing tower to obtain the liquid mixture and the non-condensable gas. The liquid mixture is mainly mixed fuel oil and is sent to an oil storage tank for storage and sale. The non-condensable gas enters a pyrolysis gas recycling system after desulfurization treatment by a gas purifying device, and is returned to an anaerobic pyrolysis furnace and a high-temperature melting furnace to be used as fuel gas by the pyrolysis gas recycling system. Obviously, the organic matter anaerobic pyrolysis device also does not need to comprise a pyrolysis gas recycling system, and natural gas, liquefied gas and the like are used as fuel gas for the anaerobic pyrolysis furnace and the high-temperature melting furnace.
The pretreatment system may not include an organic matter anaerobic pyrolysis device, and the inorganic matter-based solid component obtained by the centrifugal separation device may be directly fed into a high-temperature melting furnace to be heated at high temperature to obtain a molten liquid.
The utility model relates to a fiberboard preparation system for oily sludge solid residues, which also comprises a high-temperature melting fiber extraction unit 20, wherein the high-temperature melting fiber extraction unit 20 comprises a forming and drying device, a high-temperature melting furnace and a high-speed centrifugal device.
The shaping and drying device is mainly used for receiving the solid component obtained after pretreatment, mixing and shaping the solid component and the additive, and shaping oval particle materials with the particle size of 5-50 mm, wherein the mass ratio of the solid component to the additive is (1): 0.05 to 0.5, and the additive component is preferably one or a plurality of quartz sand, fly ash and slag, which are combined in proper amounts, so as to finally ensure that the mass content of silicon dioxide in the mixed mixture is 30 to 60 percent and the mass content of aluminum oxide is 5 to 20 percent. And drying the formed solid material by a drying device at 160-350 ℃ to obtain a dried block material.
The high-temperature melting furnace mainly receives solid granules obtained by the forming and drying device, and carries out high-temperature melting heating under the action of fuel gas and oxygen enrichment, wherein the heating temperature of solid materials is above 1600 ℃, for example, 1600-2500 ℃, and the materials are fully melted.
The high-speed centrifugal device is used for receiving the molten liquid of the high-temperature melting furnace, and realizes the rapid formation of the molten liquid into the cellucotton through the high-speed rotation of the four-stage high-speed rotating discs which are arranged in an up-down staggered way.
The utility model relates to a fiberboard system for preparing solid residues of oil-containing sludge, which also comprises a fiberboard forming unit 30, wherein the fiberboard forming unit 30 comprises a cotton collecting device, a pendulum device and a fiberboard forming device which are connected in sequence.
The cotton collecting device is used for receiving the fiber cotton obtained by the high-speed centrifugal device through high-speed spinning, the cotton collecting device comprises a cotton collecting machine, the cotton collecting machine comprises a rotary roller, a brush is arranged on the outer surface of the rotary roller, the rotary roller with the brush continuously rotates, and the fiber cotton is collected and tidied through the brush on the surface of the roller and is conveyed to the pendulum device through the belt conveyor belt. The rotating speed of the rotary drum of the cotton collecting machine is generally 300-800 r/min. Obviously, the fiber cotton collected by the cotton collecting machine can be conveyed to the pendulum device not by the belt conveyor, but by other modes such as a chain conveyor and the like.
The pendulum device is connected with the fiber discharge end of the cotton collecting device, and the collected fibers continuously and reciprocally swing in the vertically swinging pendulum device.
The fiberboard forming device comprises a forming machine, a curing chamber and a cutting assembly which are sequentially connected, wherein the forming machine is arranged below the pendulum device, and the cotton felt formed by the pendulum device can be folded to form multi-layer fiber cotton through the forming machine to obtain multi-layer cotton felt.
The solidifying chamber is connected with the discharge port of the forming machine, and components such as environmental protection resin and the like are gasified in the solidifying chamber and then sprayed into the multi-layer cotton felt to form molecules with new chemical structures, so that a firm substance-rock wool board is formed. The entire process is carried out in a curing chamber and must be at a sufficiently high temperature and pressure. The curing temperature is controlled between 200 and 300 ℃ and the curing time is controlled between 1 and 3 hours.
And feeding the cured rock wool board into a first cutting machine and a second cutting machine for cutting, wherein the first cutting machine is arranged to cut the rock wool board along the moving direction of the rock wool board, and the second cutting machine is arranged to cut the rock wool board along the direction perpendicular to the moving direction of the rock wool board. Preferably, the first cutter is a longitudinal edge cutter and the second cutter is a transverse edge cutter. In particular, rock wool boards exiting from the curing chamber often have some degree of flash and irregularities, and thus require subsequent processing. Firstly, the peripheral edges of the rock wool plates are processed and flattened through a longitudinal edge cutter, and then the rock wool plates are cut into required widths along the transverse direction through a transverse edge cutter, so that the size and quality of the rock wool plates are ensured to meet the requirements. The cutting speed of the longitudinal edge cutter is controlled to be 2-10 m/min, and the cutting speed of the transverse edge cutter is controlled to be 1-8 m/min.
The system for preparing the fiberboard by using the solid residues of the oil-containing sludge further comprises a cooling unit 40, wherein the cooling unit 40 is connected with the fiberboard forming unit 30, and the fiberboard prepared by the fiberboard forming unit 30 can be cooled by the cooling unit 40. Specifically, the cooling unit comprises a fan, wind generated by the operation of the fan blows to the fiber board, and the rock wool board after being cut in the longitudinal and transverse directions is cooled by strong convection wind.
In the manufacturing process, the rock wool board needs to be cooled after being subjected to multiple processes such as high temperature, high pressure and the like, so that the performance and quality of the product are ensured, and meanwhile, the energy is saved as much as possible on the basis of ensuring qualification. And finally, packaging and packaging the rock wool board product. The rock wool board needs to be subjected to rigorous inspection and testing prior to packaging and encapsulation, and to necessary packaging and identification to facilitate transportation, to preserve product quality and to simplify the process of storage and use thereof.
The embodiment provides a system for preparing a fiberboard by using solid residues of oil-containing sludge, which is shown in fig. 2 and comprises the following specific operations:
A: firstly, pretreating the oily sludge, wherein the pretreatment can be single treatment of hot water washing, pyrolysis and solvent extraction or combination of multiple treatment modes, so as to obtain oil, water and solid three-phase components;
B: mixing the solid product obtained after pretreatment with other additives, preparing a solid raw material with a certain particle size, and drying for later use;
C: the liquid smelted by the high-temperature melting furnace is thrown by a high-speed centrifuge to obtain fiber cotton;
D: the fiber cotton is subjected to cotton collection, felt laying, felt stacking, solidification, longitudinal and transverse trimming, cooling and packaging in sequence to obtain a fiber board finished product.
Specifically, the method mainly comprises the following steps:
Step 1, the oily sludge at the bottom of a temporary storage pool is sent into a storage device through a liquid pump for temporary storage, hot water with the total volume being half of that of the tank is added into a stirring device, the water inlet temperature is controlled to be 70-75 ℃, the stirring device is carried out, the temporary stored oily sludge is added into a stirring tank, the liquid in the whole stirring device is controlled to occupy three fourths of the total volume, meanwhile, a medicament with the total mass being 1-3% is added, and the stirring tank is heated, so that the stable control is ensured to be about 70 ℃;
And 2, stirring the oily sludge mixed solution in a stirring tank for 40-50 min, and then sending the mixed solution into a three-phase centrifuge, and centrifugally separating the mixed solution at the rotating speed of 4500rpm to obtain oil, water and solid three phases.
And step 3, centrifuging to obtain a solid component, mixing the solid component with the additive fly ash and quartz sand, wherein the mass ratio of the fly ash to the quartz sand is 1-2, and the mass ratio of the solid component to the additive is 1:0.2-0.3. Fully mixing, then sending into a ball press for ball pressing to obtain oval granular materials with the particle size of 40-50 mm, and sending into a smoke drying device with the temperature of 260-280 ℃ for drying treatment to obtain dried block materials.
And step 4, directly feeding the dried material into a high-temperature melting furnace, and fully burning under the action of fuel gas and oxygen enrichment, wherein the temperature of the melting furnace is controlled at 1700-2000 ℃. The generated high-temperature flue gas firstly passes through an air preheater, then passes through a flue gas drying device, then is subjected to denitration treatment by a denitration device, then dust in the flue gas is collected by a dust removal system, and finally the flue gas after dust removal is subjected to alkaline washing and activated carbon adsorption treatment, and is discharged after reaching the standard.
Step 5, vertically flowing the molten liquid into a high-speed centrifugal device, and sequentially passing through a first roller, a second roller, a third roller and a fourth roller, wherein the fourth roller corresponds to 11KW of power, 15KW of power, 22KW of power and 22KW of power from top to bottom; the four-stage high-speed rotating discs with different powers are arranged in an up-down staggered mode, so that quick fiber forming of the melt is realized, and the fiber cotton is obtained.
And 6, collecting the fiber cotton obtained by spinning through a rotary drum cotton collecting machine with the rotating speed of 600r/min, obtaining the fiber cotton, and conveying the fiber cotton to a pendulum device for felting. The obtained multi-layer cotton felt is folded on a forming machine below to form multi-layer fiber cotton.
And 7, spraying environment-friendly resin with the mass of 0.5-3% of that of the fiber cotton through a spraying device when the fiber cotton enters a curing device, and curing for 1-1.5 h at the temperature of 200-260 ℃. Cutting the solidified and extruded fiber board by a longitudinal cutting machine with the speed of 4-6 m/min until the width is 1200mm, and cutting the solidified and extruded fiber board by a transverse cutting machine with the speed of 2-5 m/min until the length is 600mm.
And 8, cooling the product to normal temperature by a fan, and packaging and encapsulating the obtained product.
Thus far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will fall within the scope of the present utility model.
Claims (10)
1. A system for preparing fiberboard by using oily sludge solid residues is characterized by comprising a pretreatment unit, a high-temperature melting fiber extraction unit and a fiberboard forming unit which are connected in sequence,
The pretreatment unit comprises a storage device and a centrifugal separation device which are connected with each other, wherein the storage device is used for storing oil-containing sludge, and the centrifugal separation device is connected with an outlet of the storage device;
The high-temperature melting fiber extracting unit comprises a high-temperature melting furnace and a high-speed centrifugal device which are connected with each other, wherein the high-temperature melting furnace is connected with a solid product outlet of the centrifugal separation device, the high-speed centrifugal device is connected with a discharge hole of the high-temperature melting furnace, and the high-speed centrifugal device is arranged to enable molten liquid from the high-temperature melting furnace to form fiber cotton;
The fiber board forming unit comprises a cotton collecting device, a pendulum device and a fiber board forming device which are sequentially connected, wherein the cotton collecting device is connected with a discharge port of the high-speed centrifugal device, the pendulum device is connected with the discharge port of the cotton collecting device, the pendulum device is arranged to enable fiber cotton collected by the cotton collecting device to be formed into a cotton felt, the fiber board forming device is connected with the discharge port of the pendulum device, and the fiber board forming device is arranged to enable the cotton felt from the pendulum device to be formed into a fiber board.
2. The system of claim 1, wherein the fiberboard forming device comprises a forming machine, a curing chamber and a cutting assembly connected in sequence, the forming machine is connected with the discharge port of the pendulum device, the curing chamber is connected with the discharge port of the forming machine, and the cutting assembly is connected with the discharge port of the curing chamber.
3. The system of claim 2, wherein the cutting assembly comprises a first cutter and a second cutter disposed in sequence, the first cutter and the second cutter being configured to cut rock wool boards exiting the curing chamber.
4. A system according to claim 3, wherein the first cutter is arranged to cut the rock wool board in a direction of movement of the rock wool board, and the second cutter is arranged to cut the rock wool board in a direction perpendicular to the direction of movement of the rock wool board.
5. The system of claim 4, wherein the first cutter has a cutting speed of 2-10 m/min and the second cutter has a cutting speed of 1-8 m/min.
6. The system of claim 2, wherein the temperature within the curing chamber is 150 ℃ to 300 ℃.
7. The system of claim 1, further comprising a cooling unit coupled to the fiberboard forming unit for cooling a fiberboard prepared by the fiberboard forming unit.
8. The system according to claim 1, characterized in that the cotton collecting means comprises a cotton collecting machine comprising a rotating drum, the outer surface of which is provided with brushes, the cotton collecting machine being arranged to collect the fibre cotton coming out of the discharge opening of the high-speed centrifugal device by means of the rotation of the rotating drum and the brushes, the rotational speed of the rotating drum being 300-800 r/min.
9. The system of claim 1, wherein the pretreatment unit further comprises an organic matter anaerobic pyrolysis device comprising an anaerobic pyrolysis furnace and an oil-gas cooling purification group, the anaerobic pyrolysis furnace being connected to the solid product outlet of the centrifugal separation device, the oil-gas cooling purification group being connected to the oil-gas mixture outlet of the anaerobic pyrolysis furnace.
10. The system of claim 9, wherein the organic matter anaerobic pyrolysis device further comprises a pyrolysis gas recycling system, one end of the pyrolysis gas recycling system is connected with a non-condensable gas outlet of the oil gas cooling and purifying group, and the other end of the pyrolysis gas recycling system is connected with the anaerobic pyrolysis furnace and/or the high-temperature melting furnace.
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| CN202321936249.4U CN220977323U (en) | 2023-07-22 | 2023-07-22 | System for preparing fiberboard from oily sludge solid residues |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202321936249.4U CN220977323U (en) | 2023-07-22 | 2023-07-22 | System for preparing fiberboard from oily sludge solid residues |
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