CN210481161U - Oily sludge oil recycling, granulating and drying device - Google Patents
Oily sludge oil recycling, granulating and drying device Download PDFInfo
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- CN210481161U CN210481161U CN201921421116.7U CN201921421116U CN210481161U CN 210481161 U CN210481161 U CN 210481161U CN 201921421116 U CN201921421116 U CN 201921421116U CN 210481161 U CN210481161 U CN 210481161U
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Abstract
The utility model discloses an oil recovery, granulation and drying device for oily sludge, which mainly comprises a box body; the box body is divided into an upper layer, a middle layer and a lower layer; the upper layer is sequentially provided with a breast breaking area, a three-phase separation area and an oil storage area from left to right; the middle layer is sequentially provided with a first motor and a filter-pressing area from left to right; the lower layer is provided with a granulation area and a stirring area from left to right in sequence; a particle area and a second motor are also arranged below the granulation area; the oil storage area below still sets up the sewage district, and this device structural design is simple, the granulation is with low costs, degree of automation is high, granule stability is good, the oil recovery rate is high, has realized the target of oiliness mud minimizing, stabilization, innoxious and resourceization.
Description
Technical Field
The utility model relates to a solid waste handles the field, especially relates to an oily sludge oil recovery and granulation mummification device.
Background
With the rapid development of the petroleum industry and the increasing promotion of environmental protection standards, oily sludge has been listed as solid hazardous waste (HW08) by China. The treatment of oily wastewater and oily sludge generated during the exploitation of oil fields and the treatment and disposal thereof have become an increasingly serious problem. The oily sludge contains various pollutants, the oil content is generally 5-45%, if the oily sludge is not effectively treated, resource waste is caused, the environment is seriously polluted, and even the human health is harmed.
In China, a great amount of scientific research expenses are invested in the aspect of oily sludge treatment, technical and equipment research and development work is carried out, and treatment technologies such as a solvent extraction treatment process, a demulsification treatment process, a conditioning-mechanical separation process, an incineration treatment process, a pyrolysis treatment process, a landfill treatment process, a solidification treatment process and the like are developed, but the oily sludge treatment capacity in China still needs to be improved due to the reasons of treatment cost, environmental protection requirements and the like.
Sludge granulation is a process in which solid particles are adhered to each other by utilizing the self-adhesion property (or additional adhesive) of a dispersion system in which a solid and a liquid coexist and which is mainly in a solid phase, and by means of a forced method such as gravity, centrifugal force, mechanical force, extrusion, air impact force, or the like, thereby enlarging the solid particles to form particles having a specific shape and particle size. In recent years, the disposal approaches for oily sludge have also been diversified, and particularly, the disposal techniques for reduction, stabilization, harmlessness and recycling have been developed, and the treated oily sludge can be used as building materials (such as paving road beds, making bricks, protecting slopes, building dams, etc.), producing fuels, making rubber fillers and adsorbing materials, etc., but the disposal approaches for reduction, stabilization, harmlessness and recycling require oil removal, dehydration treatment and granulation.
Chinese patent CN108558164A discloses a dustproof explosion-proof oily sludge granulation drying equipment, including granulation cabin and mummification cabin, horizontal installation has a plurality of rollers in the granulation cabin, installs the motor outside the cabin, and the feed inlet has been seted up to the cabin top, and mummification cabin internally mounted has a rotation axis, installs heating small plate and heating large plate on the rotation axis in turn, and the discharge gate has been seted up to the lower extreme of mummification cabin, installs thermometer, manometer and combustible gas concentration detection table on the lateral wall. The patent only relates to granulation and drying of sludge, and does not relate to oil removal and dehydration of oily sludge, so that an oil recovery process is not available;
chinese patent CN206069677U discloses a drying and granulating device for residual sludge of an urban domestic sewage treatment plant, which has a simple structure, accelerates the drying of the sludge through an interlayer and cavity structure, optimizes the movement path of sludge particles through structural design, and improves the drying effect; however, the stirring device is not arranged in the patent, and sludge is easy to agglomerate in the granulation process to cause device blockage;
chinese patent CN101913750A discloses a device and a method for safely and effectively treating wet sludge of a sewage plant and facilitating subsequent resource development and utilization of the sludge, the device comprises a screw extrusion particle forming machine, a spouted fluidized bed and a dried sludge particle bin, sludge forming particles after primary drying flow into the bottom of the fluidized bed from an opening at the lower part of the spouted bed, the other part of hot gas medium enters the fluidized bed from a fluidizing air inlet of fluidizing air to deeply dry the sludge particles, the dried sludge particles move upwards to the surface of a bed layer of the fluidized bed from the bottom of the fluidized bed, and finally overflow out of the fluidized bed and enter the dried sludge particle bin; the treatment object of the patent is excess sludge of a sewage treatment plant, which is not suitable for oily sludge treatment disposal.
In summary, to solve the problem that the existing oily sludge granulation technology and equipment are immature, development of a novel oily sludge harmless and recycling granulation device is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art, provide a structural design is simple, the granulation is with low costs, area is little, degree of automation is high, particle stability is good, the oil rate of recovery is high, can realize an oily sludge oil recovery and granulation mummification device of the processing target of oily sludge minimizing, stabilization, innoxious and resourceization.
In order to realize the purpose of the utility model, the technical proposal of the utility model is that:
an oily sludge oil recovery and granulation drying device mainly comprises a box body; the box body is divided into an upper layer, a middle layer and a lower layer; the upper layer is sequentially provided with a breast breaking area, a three-phase separation area and an oil storage area from left to right; the middle layer is sequentially provided with a first motor and a filter-pressing area from left to right; the lower layer is provided with a granulation area and a stirring area from left to right in sequence; a particle area and a second motor are also arranged below the granulation area; and a sewage area is also arranged below the oil storage area.
Preferably, the upper part of the side wall of the demulsification area is provided with an oily sludge inlet, the opposite side wall is provided with an demulsification outlet, and the top of the demulsification area is provided with a demulsifier inlet; and a first stirring device is arranged in the demulsification area, and the demulsification outlet is communicated with the three-phase separation area.
Preferably, the first stirring device mainly comprises a first stirring shaft and a first stirring blade arranged on the first stirring shaft; the first stirring shaft is connected with a first motor through a first belt.
Preferably, a filter screen is arranged at the communication position of the demulsification outlet and the three-phase separation area.
Preferably, a first baffle and a second baffle are arranged in the three-phase separation zone; the first baffle is close to the breast breaking area, connected with the top of the three-phase separation area and not connected with the bottom of the three-phase separation area; the second baffle is close to the oil storage area, and is connected with the top of the three-phase separation area and is not connected with the bottom of the three-phase separation area; the bottom of the three-phase separation area is also provided with a sludge outlet; an oil skimmer is further arranged between the second baffle and the oil storage area and is communicated with the oil storage area; the middle part of the side wall of the three-phase separation area is also provided with an overflow port which is communicated with the sewage area, and the bottom of the side wall of the sewage area is also provided with a first water outlet.
Preferably, a plate-and-frame filter press is arranged in the filter pressing area; the sludge inlet of the plate-and-frame filter press is communicated with the sludge outlet of the three-phase separation zone; a filtrate collecting region is arranged on the left side of the bottom of the pressure filtration region, and a second water outlet is arranged on the side wall of the filtrate collecting region; the right side of the bottom of the pressure filtration area is communicated with the top of the stirring area; the plate-and-frame filter press is connected with a first motor through a second belt, and the first motor is connected with a PLC control system to realize alternate forward rotation and reverse rotation.
Preferably, a second stirring device is arranged in the stirring area; the second stirring device comprises a second stirring shaft and a second stirring blade arranged on the second stirring shaft, and the second stirring shaft is connected with a second motor through a third belt.
Preferably, a granulator with a rapid condensation effect is arranged in the granulation zone, and a sludge conveyor belt is arranged between the granulator and the stirring zone; the granulator is connected with the second motor through a fourth belt, a granule outlet of the granulator is communicated with the granule area, and a granule outlet is formed in the side wall of the granule area.
Preferably, the volume ratio of the demulsifying area to the three-phase separating area to the oil storage area to the sewage area is 3:6:1: 2; the height ratio of the oil storage area to the sewage area to the filter pressing area to the stirring area is 1:2:3: 3.
The utility model has the advantages that:
1. the device is arranged in a box body, and the device is arranged into an upper layer, a middle layer and a lower layer by fully utilizing the volume of the box body; the device is reasonable in functional area division and reasonable in functional area division according to the treatment flow of the oily sludge, integrates emulsification, three-phase separation, filter pressing and granulation, can realize oil recovery of the oily sludge and granulation of the oily sludge, and is complete in function;
2. the device is internally provided with the first stirring device and the second stirring device, and the oily sludge is fully stirred, so that the full emulsification is facilitated, the problems of device halt and the like caused by sludge caking and blockage in the granulation process can be effectively avoided, and the granulation particle stability is good;
3. the device can wet in and dry out, does not need to additionally apply electric energy or heat energy to dry sludge in the granulation process, does not generate pollutants such as wastewater, waste gas and the like in the granulation process, and is energy-saving and environment-friendly;
4. the first motor can synchronously control the first stirring shaft and the plate-and-frame filter press, and the second motor can synchronously control the second stirring shaft and the granulator, so that the device has low equipment cost;
therefore, the device has the advantages of simple structural design, low granulation cost, high automation degree, good particle stability, high oil recovery rate and the like, and realizes the treatment targets of reduction, stabilization, harmlessness and reclamation of the oily sludge.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1 is a box body, 1.1 is an upper layer, 1.2 is a middle layer, 1.3 is a lower layer, 2 is a demulsification area, 2.1 is an oily sludge inlet, 2.2 is a demulsification outlet, 2.3 is a demulsifier inlet, 2.4 is a first stirring device, 2.4.1 is a first stirring shaft, 2.4.2 is a first stirring blade, 2.5 is a first belt, 3 is a three-phase separation area, 3.1 is a filter screen, 3.2 is a first baffle, 3.3 is a second baffle, 3.4 is a sludge outlet, 3.5 is an oil skimmer, 3.6 is a water overflow port, 4 is an oil storage area, 4.1 is an oil outlet, 5 is a sewage area, 5.1 is a first water outlet, 6 is a first motor, 7 is a pressure filtration area, 7.1 is a plate-frame filter press, 7.2 is a filtrate collection area, 7.3 is a second water outlet, 7.4 is a second belt, 8.1 is a second belt area, 8.1 is a granulator, 8.2 is a fourth stirring belt, 9.9.9.1 is a stirring device, 1.9.1 is a second stirring blade, 1.2 is a stirring device, 2 a second stirring shaft stirring device, 2 is a stirring device, 2 stirring device, a, 9.2 is a third belt, 10 is a particle zone, 10.1 is a particle outlet, 11 is a second motor.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
Example 1:
an oily sludge oil recovery and granulation drying device mainly comprises a box body 1; the interior of the box body 1 is divided into an upper layer 1.1, a middle layer 1.2 and a lower layer 1.3; the upper layer 1.1 is provided with a breast breaking area 2, a three-phase separation area 3 and an oil storage area 4 from left to right in sequence; the middle layer 1.2 is provided with a first motor 6 and a filter pressing area 7 from left to right in sequence; the lower layer 1.3 is provided with a granulation zone 8 and a stirring zone 9 from left to right in sequence; a particle area 10 and a second motor 11 are also arranged below the granulation area 8; and a sewage area 5 is also arranged below the oil storage area 4.
Preferably, the case 1 may be made of stainless steel.
Preferably, the stirring area 9 can be selectively provided with a feed opening, and when the organic matter content of the oily sludge is higher, the microbial agent can be added through the feed opening for granulation to prepare the organic fertilizer.
Preferably, the upper part of the side wall of the emulsion breaking region 2 is provided with an oily sludge inlet 2.1, the opposite side wall is provided with an emulsion breaking outlet 2.2, and the top part is provided with a demulsifier inlet 2.3; the demulsification area 2 is internally provided with a first stirring device 2.4, and the demulsification outlet 2.2 is communicated with the three-phase separation area 3.
Preferably, the first stirring device 2.4 mainly comprises a first stirring shaft 2.4.1 and a first stirring blade 2.4.2 arranged on the first stirring shaft 2.4.1; the first stirring shaft 2.4.1 is connected with a first motor 6 through a first belt 2.5.
Preferably, a filter screen 3.1 is arranged at the communication part of the demulsification outlet 2.2 and the three-phase separation zone 3.
Preferably, a first baffle 3.2 and a second baffle 3.3 are arranged in the three-phase separation zone 3; the first baffle 3.2 is close to the breast breaking area 2, the first baffle 3.2 is connected with the top of the three-phase separation area 3 and is not connected with the bottom of the three-phase separation area 3; the second baffle 3.3 is close to the oil storage area 4, and the second baffle 3.3 is connected with the top of the three-phase separation area 3 and is not connected with the bottom of the three-phase separation area 3; the bottom of the three-phase separation area 3 is also provided with a sludge outlet 3.4; an oil skimmer 3.5 is further arranged between the second baffle 3.3 and the oil storage area 4, the oil skimmer 3.5 is communicated with the oil storage area 4, and an oil outlet 4.1 is further formed in the side wall of the oil storage area 4; and the middle part of the side wall of the three-phase separation zone 3 is also provided with an overflow port 3.6, the overflow port 3.6 is communicated with the sewage zone 5, and the bottom of the side wall of the sewage zone 5 is also provided with a first water outlet 5.1.
Preferably, a plate-and-frame filter press 7.1 is arranged in the filter pressing area 7; a sludge inlet of the plate-and-frame filter press 7.1 is communicated with a sludge outlet 3.4 of the three-phase separation zone 3; a filtrate collecting region 7.2 is arranged on the left side of the bottom of the filter pressing region 7, and a second water outlet 7.3 is arranged on the side wall of the filtrate collecting region 7.2; the right side of the bottom of the pressure filtration area 7 is communicated with the top of the stirring area 9; the plate-and-frame filter press 7.1 is connected with a first motor 6 through a second belt 7.4, and the first motor 6 is connected with a PLC control system to realize alternate forward rotation and reverse rotation.
Preferably, a second stirring device 9.1 is arranged in the stirring area 9; the second stirring device 9.1 comprises a second stirring shaft 9.1.1 and a second stirring blade 9.1.2 arranged on the second stirring shaft 9.1.1, and the second stirring shaft 9.1.1 is connected with a second motor 11 through a third belt 9.2.
Preferably, a granulator 8.1 with a rapid condensation effect is arranged in the granulation zone 8, and a sludge conveyor belt 8.2 is arranged between the granulator 8.1 and the stirring zone 9; the granulator 8.1 is connected with a second motor 11 through a fourth belt 8.3, a granule outlet of the granulator 8.1 is communicated with a granule area 10, and a granule outlet 10.1 is arranged on the side wall of the granule area 10.
Preferably, the volume ratio of the demulsification area 2 to the three-phase separation area 3 to the oil storage area 4 to the sewage area 5 is 3:6:1: 2; the height ratio of the oil storage area 4 to the sewage area 5 to the filter-pressing area 7 to the stirring area 9 is 1:2:3: 3.
The working principle of the device is as follows:
the oil content of the oily sludge treated by the device is not less than 5%, and the heavy metal concentration limit value meets the B-level requirement in the agricultural sludge pollutant control standard (GB 4284-2018).
Oily sludge enters a demulsification area 2 from an oily sludge inlet 2.1, a proper amount of demulsifier is added through a demulsifier inlet 2.3, a first motor 6 is started to drive a first belt 2.5 and a first stirring shaft 2.4.1 to work, the oily sludge is stirred in the demulsification area 2 by a first stirring blade 2.4.2, the oily sludge enters a three-phase separation area 3 from a demulsification outlet 2.2 after being subjected to demulsification treatment, then the oily sludge is filtered by a filter screen 3.1 and then is subjected to oil, water and mud three-phase separation by a first baffle 3.2 and a second baffle 3.3, an upper oil product enters an oil storage area 4 through an oil skimmer 3.5 after standing and layering, a middle water phase enters a sewage area 5 through an overflow port 3.6, a lower mud sample enters a plate frame 7.1 from a mud outlet 3.4 for filter pressing, an oil product recovered in the oil storage area 4 is discharged through an oil outlet 4.1 for collection and recycling, wastewater in the sewage area 5 is discharged through a first water outlet 5.1 for further treatment and then discharged, a middle plate 7.1 in a filter pressing filter press, a drawing filter press 7.1 for reaching the standard, and, the first motor 6 is connected with the PLC control system to realize the alternate operation of forward rotation and reverse rotation; the sludge is dehydrated under the action of a plate and frame filter press 7.1, the water content of the dehydrated sludge is about 50%, the dehydrated sludge enters a stirring area 9 from the right side of the bottom of a filter pressing area 7, filtrate enters a filtrate collecting area 7.2 on the left side of the bottom of the filter pressing area 7, the dehydrated sludge is discharged from a second water outlet 7.3 and is further processed to reach the standard and then discharged, a second motor 11 is started to drive a third belt 9.2 and a second stirring shaft 9.1.1 to work, the dehydrated sludge with the water content of about 50% in the stirring area 9 is uniformly stirred by a second stirring blade 9.1.2, the second motor 11 drives a fourth belt 8.3 and a granulator 8.1 to work, the sludge in the stirring area 9 is conveyed to the granulator 8.1 by a sludge conveying belt 8.2 and a lifting pump, the particle size of the granulator is set to be 0.5 cm, granular sludge with the particle size of 0.5 cm is obtained after granulation and is collected to a particle area 10, and then the granular.
The granulator 8.1 with the rapid condensation effect in this device is commercially available, for example: model RL pelletizer of yowa pioneer machinery limited; the granulator 8.1 can be used for producing spherical particles or ellipsoidal particles, and the particle size adjusting range of the granulator is 0.1-1.0 cm;
the plate-and-frame filter press 7.1 of the apparatus is also directly commercially available.
The described embodiments are only some, but not all embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (9)
1. An oily sludge oil recovery and granulation drying device mainly comprises a box body; the method is characterized in that: the box body is divided into an upper layer, a middle layer and a lower layer; the upper layer is sequentially provided with a breast breaking area, a three-phase separation area and an oil storage area from left to right; the middle layer is sequentially provided with a first motor and a filter-pressing area from left to right; the lower layer is provided with a granulation area and a stirring area from left to right in sequence; a particle area and a second motor are also arranged below the granulation area; and a sewage area is also arranged below the oil storage area.
2. The oily sludge oil recovery, granulation and drying device according to claim 1, wherein: the upper part of the side wall of the demulsification area is provided with an oily sludge inlet, the opposite side wall is provided with an demulsification outlet, and the top of the demulsification area is provided with a demulsifier inlet; and a first stirring device is arranged in the demulsification area, and the demulsification outlet is communicated with the three-phase separation area.
3. The oily sludge oil recovery, granulation and drying device according to claim 2, wherein: the first stirring device mainly comprises a first stirring shaft and a first stirring blade arranged on the first stirring shaft; the first stirring shaft is connected with a first motor through a first belt.
4. The oily sludge oil recovery, granulation and drying device according to claim 2, wherein: and a filter screen is arranged at the communication part of the demulsification outlet and the three-phase separation area.
5. The oily sludge oil recovery, granulation and drying device according to claim 1, wherein: a first baffle and a second baffle are arranged in the three-phase separation zone; the first baffle is close to the breast breaking area, connected with the top of the three-phase separation area and not connected with the bottom of the three-phase separation area; the second baffle is close to the oil storage area, and is connected with the top of the three-phase separation area and is not connected with the bottom of the three-phase separation area; the bottom of the three-phase separation area is also provided with a sludge outlet; an oil skimmer is further arranged between the second baffle and the oil storage area and is communicated with the oil storage area; the middle part of the side wall of the three-phase separation area is also provided with an overflow port which is communicated with the sewage area, and the bottom of the side wall of the sewage area is also provided with a first water outlet.
6. The oily sludge oil recovery, granulation and drying device according to claim 1, wherein: a plate-and-frame filter press is arranged in the filter pressing area; the sludge inlet of the plate-and-frame filter press is communicated with the sludge outlet of the three-phase separation zone; a filtrate collecting region is arranged on the left side of the bottom of the pressure filtration region, and a second water outlet is arranged on the side wall of the filtrate collecting region; the right side of the bottom of the pressure filtration area is communicated with the top of the stirring area; and the plate-and-frame filter press is connected with the first motor through a second belt.
7. The oily sludge oil recovery, granulation and drying device according to claim 1, wherein: a second stirring device is arranged in the stirring area; the second stirring device comprises a second stirring shaft and a second stirring blade arranged on the second stirring shaft, and the second stirring shaft is connected with a second motor through a third belt.
8. The oily sludge oil recovery, granulation and drying device according to claim 1, wherein: a granulator with a rapid condensation effect is arranged in the granulation area, and a sludge conveyor belt is arranged between the granulator and the stirring area; the granulator is connected with the second motor through a fourth belt, a granule outlet of the granulator is communicated with the granule area, and a granule outlet is formed in the side wall of the granule area.
9. The oily sludge oil recovery, granulation and drying device according to claim 1, wherein: the volume ratio of the demulsifying area to the three-phase separation area to the oil storage area to the sewage area is 3:6:1: 2; the height ratio of the oil storage area to the sewage area to the filter pressing area to the stirring area is 1:2:3: 3.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921421116.7U CN210481161U (en) | 2019-08-29 | 2019-08-29 | Oily sludge oil recycling, granulating and drying device |
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| CN201921421116.7U CN210481161U (en) | 2019-08-29 | 2019-08-29 | Oily sludge oil recycling, granulating and drying device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110498583A (en) * | 2019-08-29 | 2019-11-26 | 宜兴市创新环保有限公司 | A kind of oily sludge Oil Recovery and it is granulated desiccation apparatus |
| CN111662759A (en) * | 2020-07-01 | 2020-09-15 | 西安石油大学 | Oily sludge-based granulated fuel and preparation method thereof |
-
2019
- 2019-08-29 CN CN201921421116.7U patent/CN210481161U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110498583A (en) * | 2019-08-29 | 2019-11-26 | 宜兴市创新环保有限公司 | A kind of oily sludge Oil Recovery and it is granulated desiccation apparatus |
| CN111662759A (en) * | 2020-07-01 | 2020-09-15 | 西安石油大学 | Oily sludge-based granulated fuel and preparation method thereof |
| CN111662759B (en) * | 2020-07-01 | 2024-02-06 | 西安石油大学 | Oil-containing sludge-based granulated fuel and preparation method thereof |
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