CN113548784A - Method and device for efficient sludge heat drying treatment - Google Patents
Method and device for efficient sludge heat drying treatment Download PDFInfo
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- CN113548784A CN113548784A CN202110990964.5A CN202110990964A CN113548784A CN 113548784 A CN113548784 A CN 113548784A CN 202110990964 A CN202110990964 A CN 202110990964A CN 113548784 A CN113548784 A CN 113548784A
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- 238000001035 drying Methods 0.000 title claims abstract description 100
- 239000010802 sludge Substances 0.000 title claims abstract description 86
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 37
- 239000003546 flue gas Substances 0.000 claims abstract description 19
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000005360 mashing Methods 0.000 claims abstract description 13
- 238000007599 discharging Methods 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 17
- 239000002912 waste gas Substances 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 9
- 239000006185 dispersion Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 239000008236 heating water Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 8
- 238000000926 separation method Methods 0.000 description 6
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000004457 water analysis Methods 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a method and a device for high-efficiency sludge heat drying treatment, belonging to the field of sludge treatment.A single-fiber water bath elasticity testing device comprises a feeding mechanism, a drying mechanism and a discharging mechanism which are sequentially connected; the feeding mechanism comprises a feeding cylinder, the drying mechanism comprises a drying cylinder, a spiral push rod is connected in the drying cylinder in a rotating mode, one end of the drying cylinder is connected with the feeding cylinder, the other end of the drying cylinder is connected with a discharging mechanism, and one side of the drying cylinder is connected with a flue gas input pipe. The sludge is dried through the drying cylinder, moisture in the sludge is removed, the sludge in the drying cylinder is crushed by the mashing part, the sludge can be uniformly heated, and the moisture in the sludge can be fully and efficiently evaporated. The high-temperature moisture that evaporates out gets into the heating cylinder and gives the heating water or supplyes the heat, and the heating water also can leave the water-soluble part in the vapor simultaneously, purifies the air of output, plays the effect of high-efficient environmental protection.
Description
Technical Field
The invention relates to the field of sludge treatment, in particular to a method and a device for efficient sludge heat drying treatment.
Background
In the process of sewage treatment, a large amount of sludge is left, which has a high water content and is contaminated with a large amount of harmful substances, and the sludge needs to be treated in a harmless manner. In the prior art, sludge is generally treated by incineration. Because the water content of the sludge is extremely high, the water in the sludge needs to be removed before incineration, so that the incineration efficiency is higher. However, the existing sludge dewatering and drying efficiency is low, and the treated sludge also contains more water.
Disclosure of Invention
The invention aims to solve the technical problem that the efficiency of the conventional sludge drying device is too low, and provides a method and a device for high-efficiency sludge heat drying treatment, which can efficiently and fully remove water in sludge.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a high-efficiency sludge heat drying treatment device, which comprises a feeding mechanism, a drying mechanism and a discharging mechanism which are sequentially connected; the feeding mechanism comprises a feeding cylinder, the drying mechanism comprises a drying cylinder, a spiral push rod is connected in the drying cylinder in a rotating mode, one end of the drying cylinder is connected with the feeding cylinder, the other end of the drying cylinder is connected with a discharging mechanism, and one side of the drying cylinder is connected with a flue gas input pipe.
In a preferred technical scheme of the present invention, the drying mechanism further includes a heating cylinder, the heating cylinder is sleeved outside the drying cylinder, and a heating component is disposed in the heating cylinder.
In a preferred technical scheme of the invention, the spiral push rod is rotatably connected to the inside of the drying cylinder through a support, an annular groove is formed in the inside of the drying cylinder, a rotating ring is rotatably connected in the annular groove and fixedly connected with the spiral push rod, and a smashing piece is arranged on the rotating ring.
In a better technical scheme of the invention, the mashing part comprises a driving wheel, a middle rotating wheel, a first bevel gear, a second bevel gear, an installation box and a mashing frame; the drive wheel rotate connect in on the change, the annular groove is provided with the sawtooth, and drive wheel and sawtooth meshing, install bin are fixed in the change inboard, and the drive wheel is located the install bin, and one side of runner in first bevel gear is fixed in, and the change runner rotates through the pivot to be connected in the install bin, and well runner and drive wheel meshing smash the bottom of putting up and is fixed with the drive shaft to pieces, the drive shaft extend to the install bin in with second bevel gear fixed connection, second bevel gear and first bevel gear meshing.
In a preferred technical scheme of the invention, a crushing piece is arranged in the feeding cylinder, and the crushing piece comprises a stirring shaft, a first baffle and a second baffle; the stirring shaft is rotationally connected inside the feeding barrel, more than two first separation blades are fixed on the stirring shaft, more than two second separation blades are fixed on the inner wall of the feeding barrel, and the first separation blades and the second separation blades are arranged in a staggered mode.
In a preferred technical scheme of the invention, the output end of the drying cylinder is connected with a first waste gas discharge pipe, the waste gas discharge pipe is connected to the bottom of the heating cylinder, and the top of the heating cylinder is connected with a second waste gas discharge pipe.
In a preferred technical scheme of the invention, the discharge mechanism comprises a case, a conveying part, a dispersion part, a negative pressure fan and a third waste gas discharge pipe; the machine case is connected with the drying pipe, the conveying part is arranged in the machine case, the shifting part comprises more than two shifting wheels and a transmission belt, the more than two shifting wheels are rotatably connected above the conveying part, and the shifting wheels are connected through the transmission belt. The negative pressure fan is arranged at the top of the case, the input end of the negative pressure fan is communicated with the top of the case, and the output end of the negative pressure fan is connected to the heating cylinder.
In a preferred technical scheme of the invention, the flue gas input pipe is spirally wound outside the drying cylinder, and a fan is arranged in the flue gas input pipe.
In a better technical scheme of the invention, the invention also comprises a sludge treatment method of the high-efficiency sludge heat drying treatment device, which comprises the steps of S1, filling sludge into the feeding cylinder; s2, the feeding cylinder conveys sludge to the drying cylinder; s3, filling high-temperature gas into the drying cylinder through the flue gas input pipe; and S4, conveying the dried sludge to a discharge mechanism by the drying cylinder.
The invention has the beneficial effects that:
according to the high-efficiency sludge heat drying treatment device provided by the invention, the sludge is dried through the drying cylinder, the moisture in the sludge is removed, the sludge in the drying cylinder is crushed by the mashing part, the sludge can be uniformly heated, and the moisture in the sludge can be fully and efficiently evaporated. The high-temperature moisture that evaporates out gets into the heating cylinder and gives the heating water or supplyes the heat, and the heating water also can leave the water-soluble part in the vapor simultaneously, purifies the air of output, plays the effect of high-efficient environmental protection.
Drawings
FIG. 1 is a schematic structural diagram of an efficient sludge heat drying treatment device according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of the tamper of fig. 1;
fig. 3 is a side view of the heating cylinder of fig. 1.
In the figure:
11-feeding cylinder, 12-stirring shaft, 13-first baffle, 14-second baffle, 21-drying cylinder, 22-spiral push rod, 24-circular groove, 25-flue gas input pipe, 26-first waste gas discharge pipe, 27-sawtooth, 31-heating cylinder, 32-heating component, 33-second waste gas discharge pipe, 41-cabinet, 42-conveying component, 43-shifting wheel, 44-driving belt, 45-negative pressure fan, 46-third waste gas discharge pipe, 51-rotating ring, 52-driving wheel, 53-mounting box, 54-middle rotating wheel, 55-first bevel gear, 56-rotating shaft, 57-second bevel gear, 58-driving shaft and 59-mashing frame.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1 to 3, in the embodiment, an efficient sludge heat drying treatment device is provided, which includes a feeding mechanism, a drying mechanism and a discharging mechanism, which are connected in sequence; the feeding mechanism comprises a feeding cylinder 11, the drying mechanism comprises a drying cylinder 21, a spiral push rod 22 is rotationally connected in the drying cylinder 21, one end of the drying cylinder 21 is connected with the feeding cylinder 11, the other end of the drying cylinder 21 is connected with a discharging mechanism, and one side of the drying cylinder 21 is connected with a flue gas input pipe 25.
In the initial state, sludge to be treated is discharged into the feed cylinder 11, the sludge slowly descends in the feed cylinder 11 and is then conveyed into the drying cylinder 21 through the feed cylinder 11, and the sludge is pushed out of the right side of the drying cylinder 21 from the left side of the cylinder in the drying cylinder 21 by the screw push rod 22. In the process of pushing the sludge by the spiral push rod 22, high-temperature gas is input through the flue gas input pipe 25. Since sludge is treated, there is no particular requirement for the gas to be treated, and in order to save resources, a part generating exhaust gas may be connected to the drying drum 21 to discharge the high-temperature exhaust gas. In the drying cylinder 21, the sludge is mixed with the high-temperature waste gas, the moisture in the sludge is heated by the high-temperature waste gas and is evaporated into steam, the steam and the sludge continue to move rightwards under the action of the spiral push rod 22 until the sludge reaches a discharge mechanism, the sludge and the steam are separated, the steam is discharged, the sludge is subjected to drying treatment, the moisture in the sludge is greatly reduced, and the sludge enters the next treatment process for treatment.
Further, the drying mechanism further includes a heating cylinder 31, the heating cylinder 31 is sleeved outside the drying cylinder 21, and a heating component 32 is disposed in the heating cylinder 31. When the temperature of the externally-supplied gas is not high enough, the heating member 32 may be used to assist in heating, water or other liquid with good heat-insulating effect is filled in the heating cylinder 31, then the heating member 32 is started, the heating member 32 heats the liquid, and the high-temperature liquid transfers heat to the drying cylinder 21, so as to heat the sludge in the drying cylinder 21. Meanwhile, the liquid in the heating cylinder 31 can also slow down the heat loss speed of the sludge in the drying cylinder 21, and the moisture in the sludge has enough time to evaporate. In this embodiment, the heating component 32 is an electric heater, and different heaters can be selected according to the needs of actual situations to heat the liquid.
Further, the spiral push rod 22 is rotatably connected to the inside of the drying cylinder 21 through a support, the annular groove 24 is formed in the inside of the drying cylinder 21, the rotating ring 51 is rotatably connected to the annular groove 24, the rotating ring 51 is fixedly connected with the spiral push rod 22, and the rotating ring 51 is provided with a smashing piece. In the process that the sludge is pushed by the spiral push rod 22, the mashing part rotates along with the spiral push rod 22, and the mashing part rotates in the rotating process to smash and smash the sludge in the drying cylinder 21. After the lumpy sludge is broken and scattered by the mashing piece, all parts of the sludge can be fully heated, the sludge is heated more uniformly, water vapor can be fully and deeply evaporated, and the sludge drying efficiency is improved.
Further, the mashing part comprises a driving wheel 52, a transfer wheel 54, a first bevel gear 55, a second bevel gear 57, a mounting box 53 and a mashing frame 59; the driving wheel 52 is rotatably connected to the rotating ring 51, the saw teeth 27 are arranged in the circular groove 24, the driving wheel 52 is meshed with the saw teeth 27, the mounting box 53 is fixed to the inner side of the rotating ring 51, the driving wheel 52 is located in the mounting box 53, the first bevel gear 55 is fixed to one side of the middle rotating wheel 54, the middle rotating wheel 54 is rotatably connected to the mounting box 53 through the rotating shaft 56, the middle rotating wheel 54 is meshed with the driving wheel 52, the driving shaft 58 is fixed to the bottom of the mashing frame 59, the driving shaft 58 extends into the mounting box 53 and is fixedly connected with the second bevel gear 57, and the second bevel gear 57 is meshed with the first bevel gear 55.
The spiral push rod 22 drives the rotating ring 51 to rotate, meanwhile, the driving wheel 52 on the rotating ring 51 is meshed with the saw teeth 27 in the circular groove 24 to rotate, the rotating driving wheel 52 further drives the rotating intermediate wheel 54 meshed with the rotating driving wheel to rotate, the rotating intermediate wheel 54 transmits power to the first bevel gear 55, the first bevel gear 55 further drives the second bevel gear 57 to rotate, and finally, the mashing frame 59 coaxial with the second bevel gear 57 rotates. The sludge is smashed by the rotating smashing frame 59, the sludge can be sufficiently heated, moisture in the sludge can be evaporated, and the sludge is prevented from being agglomerated again in the drying cylinder 21 to further influence the evaporation of the moisture. The evaporation efficiency is improved through the arrangement, the water analysis efficiency is greatly improved, the output sludge is loosened, and the subsequent utilization and processing are facilitated.
Furthermore, a crushing piece is arranged in the feeding cylinder 11, and the crushing piece comprises a stirring shaft 12, a first baffle 13 and a second baffle 14; the stirring shaft 12 is rotatably connected inside the feeding cylinder 11, more than two first baffle sheets 13 are fixed on the stirring shaft 12, more than two second baffle sheets 14 are fixed on the inner wall of the feeding cylinder 11, and the first baffle sheets 13 and the second baffle sheets 14 are arranged in a staggered manner.
When mud is stored in feed cylinder 11, stirring shaft 12 drives first separation blade 13 and rotates, and the mud in feed cylinder 11 is stirred to first baffle, makes mud become loose, and the in-process that mud was stirred to first baffle also can drive mud striking second separation blade 14 simultaneously, and mud is at the striking of first baffle and second baffle and stir down, and mud becomes loose, makes things convenient for follow-up heat drying. Meanwhile, in the process of extruding the sludge, the internal moisture can be also extruded out, and a part of moisture can be taken out in advance.
Further, the output end of the drying cylinder 21 is connected with a first exhaust gas discharge pipe 26, the exhaust gas discharge is connected to the bottom of the heating cylinder 31, and the top of the heating cylinder 31 is connected with a second exhaust gas discharge pipe 33. The evaporated water vapor is input into the heating cylinder 31 through the first exhaust gas discharge pipe 26, some harmful gases are mixed in the water vapor, the heating cylinder 31 is filled with liquid, at the moment, the water vapor and the harmful substances can be cleaned in the liquid, and finally, cleaner gas is output through the second exhaust gas discharge pipe 33, so that the influence on the environment is reduced.
Further, the discharge mechanism includes a chassis 41, a conveying part 42, a dispersion member, a negative pressure fan 45, and a third exhaust discharge pipe 46; the cabinet 41 is connected with the drying pipe, the transmission component 42 is arranged inside the cabinet 41, the dispersion component comprises more than two shifting wheels 43 and a transmission belt 44, the more than two shifting wheels 43 are rotatably connected above the transmission component 42, and the shifting wheels 43 are connected through the transmission belt. The negative pressure fan 45 is arranged on the top of the case 41, an input end of the negative pressure fan 45 is communicated with the top of the case 41, and an output end of the negative pressure fan 45 is connected to the heating cylinder 31. The heat-dried gas is discharged into the cabinet 41 and transferred to the next processing apparatus by the transfer unit 42. The conveying means 42 in this embodiment is a conveyor belt. The sludge falls on the conveyer belt for transmission, and the conveyer belt 44 is driven by the driving device to rotate so as to drive the dial wheel 43 to rotate. The sludge on the conveyor belt is scattered by the dial wheel 43 days, so that the sludge is flatly laid on the conveying part 42, the negative pressure fan 45 is started at the moment, the sludge laid on the conveying part 42 has residual heat and can continuously emit water vapor, and the water vapor is extracted by the negative pressure fan 45 and is input into the heating cylinder 31 for cleaning through the third waste gas discharge pipe 46 at the moment. Through each step, the sludge is fully dried.
Further, the flue gas input pipe 25 is spirally wound outside the drying cylinder 21, and a fan is arranged in the flue gas input pipe 25. When the flue gas input pipe 25 inputs high-temperature flue gas, the heat of the high-temperature flue gas can be firstly transferred to the drying cylinder 21 through the pipe wall to be preheated, and simultaneously transferred to the liquid in the heating cylinder 31 to be preheated. And the fan can attract the flue gas to be discharged into the drying cylinder 21 in an accelerating way.
Further, the sludge treatment method of the high-efficiency sludge heat drying treatment device comprises the steps of S1, filling sludge into the feeding barrel 11; s2 the feeding cylinder 11 delivers the sludge to the drying cylinder 21; s3, filling high-temperature gas into the drying cylinder 21 through the flue gas input pipe 25; s4 the drying drum 21 delivers the dried sludge to the discharge mechanism.
Other techniques of the present embodiment employ existing techniques.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.
Claims (9)
1. The utility model provides a high-efficient sludge heat drying processing apparatus which characterized in that: comprises a feeding mechanism, a drying mechanism and a discharging mechanism which are connected in sequence;
the feeding mechanism comprises a feeding cylinder (11), the drying mechanism comprises a drying cylinder (21), a spiral push rod (22) is connected in the drying cylinder (21) in a rotating mode, one end of the drying cylinder (21) is connected with the feeding cylinder (11), the other end of the drying cylinder (21) is connected with a discharging mechanism, and one side of the drying cylinder (21) is connected with a flue gas input pipe (25).
2. The high-efficiency sludge heat drying treatment device according to claim 1, characterized in that:
the drying mechanism further comprises a heating cylinder (31), the heating cylinder (31) is sleeved outside the drying cylinder (21), and a heating part (32) is arranged in the heating cylinder (31).
3. The high-efficiency sludge heat drying treatment device according to claim 1, characterized in that:
spiral push rod (22) through the support rotate connect in the inside of drying cylinder (21), ring groove (24) have been seted up to the inside of drying cylinder (21), and ring groove (24) internal rotation is connected with swivel (51), swivel (51) and spiral push rod (22) fixed connection are provided with on swivel (51) and smash the piece.
4. The high-efficiency sludge heat drying treatment device according to claim 3, characterized in that:
the smashing part comprises a driving wheel (52), a transfer wheel (54), a first bevel gear (55), a second bevel gear (57), an installation box (53) and a smashing rack (59);
the driving wheel (52) is rotationally connected to the rotating ring (51), sawteeth (27) are arranged in the circular groove (24), the driving wheel (52) is meshed with the sawteeth (27), the mounting box (53) is fixed to the inner side of the rotating ring (51), the driving wheel (52) is located in the mounting box (53), the first bevel gear (55) is fixed to one side of the middle rotating wheel (54), the middle rotating wheel (54) is rotationally connected to the mounting box (53) through a rotating shaft (56), the middle rotating wheel (54) is meshed with the driving wheel (52), the bottom of the mashing frame (59) is fixed with the driving shaft (58), the driving shaft (58) extends into the mounting box (53) and is fixedly connected with the second bevel gear (57), and the second bevel gear (57) is meshed with the first bevel gear (55).
5. The high-efficiency sludge heat drying treatment device according to claim 1, characterized in that:
a crushing piece is arranged in the feeding cylinder (11), and comprises a stirring shaft (12), a first baffle (13) and a second baffle (14);
the stirring shaft (12) is rotatably connected inside the feeding cylinder (11), more than two first baffle sheets (13) are fixed on the stirring shaft (12), more than two second baffle sheets (14) are fixed on the inner wall of the feeding cylinder (11), and the first baffle sheets (13) and the second baffle sheets (14) are arranged in a staggered manner.
6. The high-efficiency sludge heat drying treatment device according to claim 2, characterized in that:
the output end of the drying cylinder (21) is connected with a first waste gas discharge pipe (26), the waste gas discharge is connected to the bottom of the heating cylinder (31), and the top of the heating cylinder (31) is connected with a second waste gas discharge pipe (33).
7. The high-efficiency sludge heat drying treatment device according to claim 6, characterized in that:
the discharge mechanism comprises a case (41), a conveying part (42), a dispersion part, a negative pressure fan (45) and a third exhaust gas discharge pipe (46);
the machine case (41) is connected with the drying pipe, the conveying part (42) is arranged inside the machine case (41), the dispersion part comprises more than two shifting wheels (43) and a transmission belt (44), the more than two shifting wheels (43) are rotatably connected above the conveying part (42), and the shifting wheels (43) are connected through the transmission belt. The negative pressure fan (45) is arranged at the top of the case (41), the input end of the negative pressure fan (45) is communicated with the top of the case (41), and the output end of the negative pressure fan (45) is connected to the heating cylinder (31).
8. The high-efficiency sludge heat drying treatment device according to claim 1, characterized in that:
the flue gas input pipe (25) is spirally wound outside the drying cylinder (21), and a fan is arranged in the flue gas input pipe (25).
9. A sludge treatment method for the high-efficiency sludge heat drying treatment device of any one of claims 1 to 8, which is characterized in that:
comprising S1, charging the feed cylinder (11) with sludge;
s2 the feeding cylinder (11) conveys sludge to the drying cylinder (21);
s3, filling high-temperature gas into the drying cylinder (21) through the flue gas input pipe (25);
s4 the drying cylinder (21) delivers the dried sludge to a discharge mechanism.
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| CN202110990964.5A CN113548784A (en) | 2021-08-26 | 2021-08-26 | Method and device for efficient sludge heat drying treatment |
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| CN202110990964.5A CN113548784A (en) | 2021-08-26 | 2021-08-26 | Method and device for efficient sludge heat drying treatment |
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| CN116621414A (en) * | 2023-07-07 | 2023-08-22 | 山东省环保产业股份有限公司 | Sludge drying device utilizing waste heat of boiler flue gas |
| CN117247213A (en) * | 2023-08-28 | 2023-12-19 | 中铁十四局集团装备有限公司 | Mud sewage recycling device for shield tunneling machine |
| CN118359354A (en) * | 2023-11-24 | 2024-07-19 | 武汉中科固废资源产业技术研究院有限公司 | Sludge low-carbon regenerated auxiliary cementing material integrated equipment |
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