CN210597200U - Device for fluidized treatment of dredged sludge - Google Patents
Device for fluidized treatment of dredged sludge Download PDFInfo
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- CN210597200U CN210597200U CN201921199538.4U CN201921199538U CN210597200U CN 210597200 U CN210597200 U CN 210597200U CN 201921199538 U CN201921199538 U CN 201921199538U CN 210597200 U CN210597200 U CN 210597200U
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- Treatment Of Sludge (AREA)
Abstract
The utility model discloses a device for fluidized treatment of dredged sludge, which comprises a crushing device and a stirring device connected with the crushing device; the crushing device is used for stirring and conveying dredged sludge and crushing impurities doped in the dredged sludge; the stirring device is used for stirring and mixing the dredged sludge mixed with other substances to obtain a sludge mixture which can be directly used for the current injection. The utility model provides a silt is dredged in fluidization treatment will have the silt of certain water content, has certain fluidity slurry through mixing the formation with solidified material, water and admixture. During stirring, the solidified materials, the grass seeds, the additive and the like are added into the stirring cylinder, and the mixture is stirred and mixed to obtain a final sludge mixture which can be directly sprayed on the surface of a side slope, so that the labor amount of workers is greatly reduced.
Description
Technical Field
The utility model relates to a bank protection processing apparatus especially relates to a device of silt is dredged in fluidization treatment.
Background
At present, in the process of building infrastructures such as highways, railways and water conservancy, original landforms and vegetation are changed to a great extent due to a large amount of filling and digging, a plurality of exposed soil slopes and rock slopes are formed, vegetation damage, water and soil loss and ecological unbalance along the highways and railways are caused, and collapse and landslide of mountains are even caused. The slope formed by the projects needs a long time to restore ecological balance by the self-power of the nature, often leaves permanent scars and cannot be restored naturally. In many regions of China, due to serious vegetation damage, water and soil loss causes great harm to the environment, surface soil of regions with large slopes is easy to lose due to erosion of rainwater, and road soil and weathered rock slopes are easy to generate landslides so as to bring great potential safety hazards to traffic and people's lives and properties, so that slope protection treatment must be carried out on the slopes.
Traditional slope protection material is various, and the key feature is as follows: although the strength is high and the durability is good, the texture is crisp and hard, the visual effect is poor, and green plants cannot grow in the slope protection, which is against the green purpose. But this aspect plant bank protection has great advantage, and it can provide stable environment for vegetation growth, and if after slope planting plant, the domatic top layer stability can be strengthened to the root system of plant, therefore plays the important effect to the slope stability. Therefore, when vegetation slope protection is considered in academic circles and engineering circles at present, slope greening or slope reinforcement is achieved only on one side, engineering protection and vegetation protection are organically combined to form a stable protection structure system with an ecological landscape effect, and the trend of engineering design is to design a more reasonable engineering structure, so that the engineering structure cannot be seen on the slope, and vegetation and beautiful landscape are all shown.
The sludge is cohesive soil which is deposited in still water or slow flowing water environment, is formed by biochemical action, has natural water content larger than a liquid limit and has natural pore ratio larger than or equal to 1.5. Under the condition of the participation of microorganisms, the modern sediment is formed, is rich in organic matters and is generally gray black.
The problem of processing dredged mud has become an important factor for engineering construction such as development of ocean space in coastal areas. The effective treatment and utilization of the dredged mud are researched in China and abroad, the dredged mud is changed into the regenerated geotechnical material by using the mud curing treatment technology, wherein the most widely used technology is cement, lime and the like mixed and cured with other substances such as industrial waste residues, and the dredged mud with a large amount of high water content further shows the advantages of good economy, environmental protection and the like. Meanwhile, for the large-volume dredged mud in China, the research of a rapid treatment method is very urgent.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at providing a device of silt is dredged in fluidization treatment can be with dredging the silt processing for being fit for the side slope and handling, helping the silt mixture of side slope vegetation.
The technical scheme is as follows: the utility model provides a device for fluidized treatment of dredged sludge, which comprises a crushing device and a stirring device connected with the crushing device; the crushing device comprises a crushing barrel, a feeding hole is formed in the crushing barrel, a transmission shaft is arranged in the crushing barrel, the transmission shaft is axially arranged along the crushing barrel, one end of the transmission shaft penetrates through the crushing barrel to be connected with the first driving assembly, a first discharging hole is formed in one end, far away from the first driving assembly, of the crushing barrel, and the crushing assembly is arranged on the transmission shaft; the stirring device comprises a stirring drum, and a connecting port, a feeding port and a second discharging port are arranged on the stirring drum; the connector of the mixing drum is communicated with the first discharge hole, a mixing shaft is arranged in the mixing drum, a mixing component is arranged on the mixing shaft, and one end of the mixing shaft penetrates through the mixing drum to be connected with the second driving component. The crushing assembly may be a helical blade or a helical blade arranged continuously or discontinuously. The quantity of charge door sets up as required, is equipped with the switch on the charge door, can close the switch when not using.
Furthermore, the device for fluidized treatment of dredged sludge also comprises a blocking device, wherein the blocking device comprises a roller, a rolling shaft is arranged in the roller, and a grating structure is arranged on the outer surface of the roller. Roll through the blocking device and roll on the side slope after spraying silt mixture and solidification, can separate into the massive structure of one by one with the silt mixture suppression after the drying, can enough play the effect of beautifying, can also make artifical secant before the silt mixture does not split, prevent the appearance of area crackle.
Further, this device of silt is dredged in fluidization treatment still includes feed arrangement, feed arrangement includes the feeder hopper, and the feeder hopper bottom is equipped with the feeding conveyer pipe, and the feeding conveyer pipe is connected with the feed inlet of broken section of thick bamboo. The feeding device is used for continuously feeding the original (to be processed) dredged sludge into the device for fluidized treatment of the dredged sludge, and the arrangement of the feeding hopper can improve the working efficiency.
Further, the device for fluidized treatment of dredged sludge further comprises a spraying unit, wherein the spraying unit comprises a spraying pipe connected with the second discharge hole, and the other end of the spraying pipe is a spraying hole and is sprayed to a side slope on site. Simultaneously, also can increase the negative pressure device among the prior art and produce the negative pressure, produce the drainage effect, take out the silt mixture in the churn, improve the efficiency of spraying.
Preferably, each cell of the grid structure is identical in shape and size. Each grid is uniformly disposed on the outer surface of the partitioning device. And each grid can be provided in a desired shape, such as a rectangle, as desired.
Preferably, the stirring assembly is a helical blade, the height of the second discharge port is higher than the height of the connecting port and the feeding port, the connecting port is arranged at the lower part of the stirring cylinder, the second discharge port is arranged at the upper part of the stirring cylinder, and the feeding port is arranged at the bottom of the stirring cylinder. The helical blade drives the mixture in the mixing drum to spirally rise under the driving of the second driving component, and the sludge mixture which is uniformly mixed can be obtained by the height setting of the positions of the second discharge port, the connecting port and the feed inlet.
The method for preparing the plant side slope by using the device for fluidized treatment of dredged sludge comprises the following steps:
(1) raw material preparation and proportioning design: digging dredging sludge in a river channel, and determining other raw materials and proportions for preparing the side slope, wherein the other raw materials comprise cement, plant seeds and pore regulating substances;
(2) adding dredged sludge from a feed inlet of the device, adding other raw materials from a feed inlet, and stirring to obtain a sludge mixture for preparing the side slope;
(3) paving the sludge mixture prepared in the step (2) on the slope surface of the side slope;
(4) and after the sludge mixture laid on the side slope is solidified, partitioning the sludge mixture.
In the step (1), other raw materials for preparing the side slope can be cement, grass seeds and pore adjusting substances, and other substances such as plant nutrient solution can also be added according to actual needs; the cement is used as a curing material, the pore adjusting substances can be foaming agents, air entraining agents, foam balls and other substances capable of changing the porosity of the sludge mixture, the porosity of the mixture can be increased, a good generating environment is provided for grass seeds, and smooth growth of the grass seeds in the sludge sprayed on the side slope is facilitated.
In the step (1), the determination of the mixture ratio of other raw materials can be carried out in advance by experiments, and the types of other raw materials and the mixture ratio of each component are determined according to the indexes of strength, fluidity and porosity; and then, batching according to the mixing proportion in a laboratory on the project site, spraying the mixture on a slope through the device, monitoring whether the strength, the fluidity and the porosity of the mixture meet the indexes, and if not, repeating the test process and the actual slope preparation process until the construction requirements are met.
Preferably, step (1) further comprises primary screening of the dredged sludge. Primarily screening the dredged sludge, removing impurities with larger sizes and useless impurities (such as larger stones, garbage and the like) to obtain primarily screened sludge, and then adding the primarily screened sludge into a crushing cylinder for crushing to obtain a uniform mixture with higher crushing degree;
preferably, the dividing step of step (4) is: and placing the partitioning device on the side slope, and rolling the side slope by the rolling partitioning device to partition. Adopt the blocking device for it is divided into the domatic fritter of rule one by one, prevents the appearance by a wide margin of shrinkage crack, influences pleasing to the eye.
Preferably, the pore regulating substance of the step (1) is one or two or three of a foaming agent, an air entraining agent and a foam ball. According to actual needs and different on-site sludge and slopes, the components and the proportion of other raw materials are adjusted.
The utility model discloses the principle: because the organic matter that is rich in the silt can help the plant in the bank protection to grow, and silt output is huge, and silt is located among the river course again, can handle on the spot after digging out and make the plant bank protection, exempts from the transportation, can practice thrift the fund, consequently the utility model discloses a silt makes ecological bank protection as the raw materials. The feeding device is used for continuously feeding original dredged sludge into the device for fluidized treatment of dredged sludge; the crushing device is used for stirring and conveying the dredged sludge from the feeding device and crushing impurities doped in the dredged sludge, so that the crushed impurities and the sludge form a common uniform mixture. The stirring device is used for stirring and mixing dredged sludge mixed with other substances, so that a sludge mixture which can be directly used for the current injection is obtained, has proper porosity and contains substances such as cement, grass seeds and the like for solidification. The blocking device can block the side slope quickly, and is attractive and practical.
The fluidized sludge treatment is a sludge treatment process for mixing sludge with certain water content with a curing material (cement), water and an additive to form slurry with certain fluidity. Therefore, during stirring, the solidifying material (cement), the grass seeds, the additive and the like are added into the stirring cylinder, and the final sludge mixture is obtained through stirring and mixing. And spraying the sludge mixture on the slope surface on the site, and finally, after the sludge mixture is solidified, carrying out blocking treatment on the sludge mixture by using a blocking device.
Has the advantages that: compared with the prior art, the method has the advantages that,
(1) the utility model can process the dredged sludge into sludge mixture which is suitable for the treatment of side slopes and helps the growth of side slope plants;
(2) the organic matter rich in the sludge can help the plants in the revetment to grow, the sludge yield is high, the sludge is positioned in the river channel, and the sludge can be processed on the spot to prepare the plant revetment after being dug out, so that the transportation is avoided, and the fund can be saved;
(3) the method for preparing the plant side slope by using the device for fluidized treatment of dredged sludge can form slurry with certain fluidity; certain grass seeds are mixed in the treated sludge and directly sprayed on the surface of the side slope, so that the integration degree is high, and the labor amount is greatly reduced.
Drawings
FIG. 1 is a schematic view of the structure of an apparatus for fluidized treatment of dredged sludge;
FIG. 2 is a cross-sectional view of an apparatus for fluidized treatment of dredged sludge;
FIG. 3 is a schematic view of the structure of the drum;
fig. 4 is a schematic structural diagram of the blocking device.
Detailed Description
The present invention will be described in further detail with reference to examples.
As shown in FIGS. 1-4, the device for fluidized treatment of dredging sludge of the present invention comprises a feeding device, a crushing device, a stirring device, and a blocking device. The feeding device is used for continuously feeding original dredged sludge into the device for fluidized treatment of dredged sludge and comprises a feeding hopper 16 and a conveying assembly, wherein a feeding conveying pipe 17 is arranged at the bottom of the feeding hopper 16 and is communicated with the feeding hopper 16, and the feeding conveying pipe 17 is connected with the feeding hole 2 of the crushing barrel 1. The conveyor assembly comprises a driving roller 21, a guiding roller 22 and a conveyor belt 20 connecting the driving roller 21 and the guiding roller 22, the conveyor belt 20 conveys the dredged sludge towards the feed hopper 16. The conveyor belt 20 is arranged obliquely, the guide roller 22 is slightly higher than the transmission roller 21, and the guide roller 22 is positioned right above the feed hopper 16. The dredging sludge placed on the bottom of the conveyor belt 20 can be continuously fed into the hopper 16 while the conveyor belt 20 performs a conveying operation.
The crushing device is used for stirring and conveying the dredged sludge from the feeding device and crushing impurities doped in the dredged sludge, so that the crushed impurities and the sludge form a common uniform mixture. The crushing device comprises a crushing barrel 1 connected with the feeding conveying pipe 17 and a transmission shaft 3 arranged in the crushing barrel 1, the crushing barrel 1 is horizontally placed, the transmission shaft 3 is axially arranged along the crushing barrel 1, and a crushing assembly 36 is arranged on the transmission shaft 3. One end of the transmission shaft 3 penetrates through the left end of the crushing barrel 1 and is connected with the first driving assembly 4, and the transmission shaft 3 is driven by the first driving assembly 4 to rotate and is stirred, conveyed and crushed by the crushing assembly 36. The crushing barrel 1 is barrel-shaped, a first discharge hole 6 is formed in the right end of the crushing barrel 1, and a feed inlet 2 is formed in the upper surface of the left side of the crushing barrel 1. Wherein, the crushing component 36 is a helical blade or a helical blade, and is arranged on the transmission shaft 3 from the left end 34 to the right end 35 of the transmission shaft from sparse to dense; the dredging direction is consistent with the direction from the feeding hole 2 at the left side to the first discharging hole 6 at the right end, and the crushing assemblies 36 densely arranged at the right side can rotate sufficiently to crush the substances such as shells and the like doped in the dredged sludge. The first discharge opening 6 communicates with a discharge pipe 27, from which pipe 27 the dredged sludge, which is well stirred and broken up, is extruded. The first driving assembly 4 comprises a first motor 23 and a first speed reducer 24 which are connected with each other, and the first motor 23 can realize speed change through the first speed reducer 24 and drive the transmission shaft 3 to rotate.
The stirring device is used for stirring and mixing dredged sludge mixed with other substances, so that a sludge mixture which can be directly used for the current injection is obtained, has proper porosity and contains substances such as cement, grass seeds and the like for solidification. The stirring device comprises a stirring cylinder 5 connected with a discharge pipe 27, the stirring cylinder 5 is vertically placed, a connecting port 7 is arranged at the left lower part of the stirring cylinder 5, and the connecting port 7 is connected with the discharge pipe 27 so as to receive dredged sludge from the crushing device. A stirring shaft 10 is vertically arranged in the stirring cylinder 5, a stirring assembly 11 is arranged on the stirring shaft 10, the stirring assembly 11 is a helical blade, and the helical blade is uniformly distributed on the stirring shaft 10, so that the problem of reduction of porosity of the dredged sludge caused by excessive extrusion of the dredged sludge is avoided, and generation of grass seeds in the later period is facilitated. The upper end of the stirring shaft 10 penetrates through the top of the stirring cylinder 5 and is connected with a second driving assembly 12 positioned at the top of the stirring cylinder 5, and the second driving assembly 12 drives the stirring shaft 10 to rotate so as to stir and mix the dredged sludge in the stirring cylinder 5. The second driving assembly 12 comprises a second motor 25 and a second speed reducer 26 which are connected with each other, and the stirring shaft 10 penetrates out of the top of the stirring cylinder 5 and is connected with the second speed reducer 26. The second motor 25 can change speed through the second speed reducer 26 to drive the stirring shaft 10 to rotate, and further drive the dredged sludge to continuously rise from the bottom in the stirring cylinder 5. Two charge inlets 8 are still connected to the bottom of churn 5, and charge inlet 8 is connected with filling tube 33, is equipped with the switch on the filling tube 33, when need not reinforced, can screw the switch. Through this feed tube 33, substances such as cement, grass seeds, air entraining agent, etc. can be continuously added to the mixing drum. Since the second driving assembly 12 can drive the dredged sludge at the bottom to rise continuously, the dredged sludge can be mixed with the dredged sludge from the side discharge pipe in real time after the additive material is added to the bottom of the mixing drum 5 through the feeding pipe 33. The direct contact mixing between the newly received dredged sludge and the additive substances can be realized in the mixing drum 5, and the mixing and stirring effects are improved. The upper part of the mixing drum 5 is also provided with a second discharge hole 9 for discharging the uniformly mixed sludge mixture to supply slope spraying on site. The second discharge port 9 is connected with an injection unit 28, the injection unit 28 comprises an injection pipe 18 connected with the second discharge port 9, and the other end of the injection pipe 18 is an injection port 19. And the sludge mixture in the mixing drum 5 can be more conveniently pumped out for spraying by combining with negative pressure equipment.
The blocking device is shown in fig. 3 and 4, and comprises a roller 13, a separating rod 29 and a traction rope 30, wherein a rolling shaft 14 is arranged inside the roller 13, a grating structure 15 is arranged on the outer surface of the roller 13, the grating structure 15 is formed by staggered arrangement of horizontal rods 31 and vertical rods 32, two ends of the rolling shaft 14 penetrate through the end surface of the roller 13, and the two ends are connected with the traction rope 30; the separating rod 29 is arranged in parallel with the rolling shaft 14, the length of the separating rod 29 is the same as that of the rolling shaft 14, and two ends of the separating rod 29 are fixedly connected with the traction rope 30. Through tractive haulage rope 30, cylinder 13 rotates, and the blocking device rolls to roll and presses on the slope after spraying silt mixture and solidification, can cut apart into the massive structure one by one with the silt mixture suppression after the drying, can enough play the effect of beautifying, can also make artifical secant before the desiccation at the silt mixture, prevents the appearance of area crackle.
When utilizing this device to prepare plant side slope, include the following step:
(1) dredging sludge in a river channel, primarily screening the dredging sludge, and removing impurities with larger sizes and useless impurities (such as larger stones, garbage and the like) to obtain primarily screened sludge;
(2) determining other raw materials and proportions for preparing the side slope, wherein the other raw materials comprise cement, plant seeds and pore regulating substances; the determination of the mixture ratio of other raw materials can be carried out by a test in advance, and the types of other raw materials and the mixture ratio of each component are determined according to the indexes of strength, fluidity and porosity; then, batching according to the mixing proportion of a laboratory on the project site, spraying the mixture on a slope through the device, monitoring whether the strength, the fluidity and the porosity of the mixture meet the indexes, and if not, repeating the test process and the actual slope preparation process until the construction requirements are met;
(3) placing the primary screened sludge on a conveyor belt 20, conveying the primary screened sludge to a crushing device through a feeding device, then stirring and conveying the primary screened sludge through the crushing device, and crushing residual impurities (such as shellfish) doped in the primary screened sludge, so that the crushed impurities and the sludge form a common uniform mixture, and the crushed shellfish can also improve the calcium content of the uniform mixture; the crushing unit device conveys the uniform mixture formed by crushing to the stirring device;
(4) stirring the uniform mixture by a stirring device, and continuously adding cement, grass seeds and pore adjusting substances into the uniform mixture by a feeding pipe while stirring to obtain a final sludge mixture; the pore regulating substance is selected from foaming agent and air entraining agent.
(5) Spraying the sludge mixture to the slope surface of the side slope through a spraying unit;
(6) after the sludge mixture is solidified and hardened by sunlight, the sludge mixture is blocked by a blocking device to prevent the large occurrence of natural dry cracks.
Claims (6)
1. A device for fluidized treatment of dredged sludge is characterized in that: comprises a crushing device and a stirring device connected with the crushing device; the crushing device comprises a crushing barrel (1), a feeding hole (2) is formed in the crushing barrel (1), a transmission shaft (3) is arranged in the crushing barrel (1), the transmission shaft (3) is axially arranged along the crushing barrel (1), one end of the transmission shaft (3) penetrates through the crushing barrel (1) to be connected with a first driving assembly (4), a first discharging hole (6) is formed in one end, far away from the first driving assembly (4), of the crushing barrel (1), and a crushing assembly (36) is arranged on the transmission shaft (3); the stirring device comprises a stirring cylinder (5), and a connecting port (7), a feeding port (8) and a second discharging port (9) are arranged on the stirring cylinder (5); a connecting port (7) of the mixing drum (5) is communicated with the first discharge port (6), a mixing shaft (10) is arranged in the mixing drum (5), a mixing component (11) is arranged on the mixing shaft (10), and one end of the mixing shaft (10) penetrates through the mixing drum (5) to be connected with a second driving component (12).
2. The apparatus for fluidized treatment of dredging sludge according to claim 1, wherein: the automatic blocking device is characterized by further comprising a blocking device, wherein the blocking device comprises a roller (13), a rolling shaft (14) is arranged inside the roller (13), and a grid structure (15) is arranged on the outer surface of the roller (13).
3. The apparatus for fluidized treatment of dredging sludge according to claim 1, wherein: still include feed arrangement, feed arrangement includes feeder hopper (16), and feeder hopper (16) bottom is equipped with feeding duct (17), and feeding duct (17) are connected with feed inlet (2) of broken section of thick bamboo (1).
4. The apparatus for fluidized treatment of dredging sludge according to claim 1, wherein: the device also comprises an injection unit, wherein the injection unit (28) comprises an injection pipe (18) connected with the second discharge hole (9), and the other end of the injection pipe (18) is an injection port (19).
5. The apparatus for fluidized treatment of dredging sludge according to claim 2, wherein: the shape and the size of each cell of the grid structure (15) are the same.
6. The apparatus for fluidized treatment of dredging sludge according to claim 1, wherein: the stirring assembly (11) is a helical blade, the connecting port (7) is arranged at the lower part of the stirring cylinder (5), the second discharge port (9) is arranged at the upper part of the stirring cylinder (5), and the charging port (8) is arranged at the bottom of the stirring cylinder (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921199538.4U CN210597200U (en) | 2019-07-26 | 2019-07-26 | Device for fluidized treatment of dredged sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921199538.4U CN210597200U (en) | 2019-07-26 | 2019-07-26 | Device for fluidized treatment of dredged sludge |
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| Publication Number | Publication Date |
|---|---|
| CN210597200U true CN210597200U (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921199538.4U Expired - Fee Related CN210597200U (en) | 2019-07-26 | 2019-07-26 | Device for fluidized treatment of dredged sludge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110468784A (en) * | 2019-07-26 | 2019-11-19 | 江苏科技大学 | A kind of method that liquidation handles the device of dredging silt and prepares plant side slope |
-
2019
- 2019-07-26 CN CN201921199538.4U patent/CN210597200U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110468784A (en) * | 2019-07-26 | 2019-11-19 | 江苏科技大学 | A kind of method that liquidation handles the device of dredging silt and prepares plant side slope |
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Granted publication date: 20200522 |