CN112916576A - Decomposition system and decomposition method of high-water-content building residue soil - Google Patents
Decomposition system and decomposition method of high-water-content building residue soil Download PDFInfo
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- CN112916576A CN112916576A CN202110083473.2A CN202110083473A CN112916576A CN 112916576 A CN112916576 A CN 112916576A CN 202110083473 A CN202110083473 A CN 202110083473A CN 112916576 A CN112916576 A CN 112916576A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/20—Agglomeration, binding or encapsulation of solid waste
- B09B3/25—Agglomeration, binding or encapsulation of solid waste using mineral binders or matrix
Abstract
The invention relates to a decomposition system of high-water content building residue soil, which comprises a turner host machine, a turner device, an automatic material spreading system, a dust collection system, a spraying system and a control system; the main machine of the turner comprises a turner bracket and a walking driving motor; the turning device comprises a transmission mechanism at the lower part of the turning machine bracket and a turning shaft in the horizontal direction; the automatic material spreading system comprises a storage hopper, a servo motor, a vibrator, a buffer spring, a material guide plate, a rotating roll shaft, a material guide hole, a material guide groove, an upper driving wheel, a lower driving wheel and a driving belt; the dust collection system comprises a dust collection system host, a dust collection head and a material return pipe; the spraying system comprises a water tank, a spraying main rod, a spray head and a spray rod. The invention has the beneficial effects that: the invention decomposes the building residue soil with high water content and large viscosity by using the turner and the decomposition system, can realize industrialization of building residue soil treatment, is little influenced by weather, has high work efficiency, and reduces the labor intensity of workers.
Description
Technical Field
The invention relates to a decomposition treatment method in a resource utilization process of building muck, in particular to a decomposition system and a decomposition method of high-water-content building muck.
Background
With the rapid development of national economy of China, the pace of urban construction is accelerated, so that a large amount of building muck is generated in engineering construction, the building muck is mainly derived from earthwork, waste residue and slurry of a construction site, and the disposal mode of the building muck mainly adopts site absorption or overseas dumping and the like. At present, most of the building muck adopts a stacking or landfill site consumption treatment mode, which not only occupies a large amount of land, but also causes great pollution to the surrounding environment, and the phenomenon of random dumping is generated due to the relationship of road distance and the fact that the muck consumption needs to pay government-regulated cost. Building rubbish and engineering dregs are dumped at will in public places such as roads, greenbelts and the like or other places which are not approved to dispose and consume the building dregs, so that the dust in cities is directly blown up, the deterioration of the environmental quality directly influences the appearance of the city appearance environment of the cities, the daily life and the quality of life of urban residents are influenced, the urban traffic accidents are caused more seriously frequently, the improvement of the urban image is directly influenced, and the harmonious construction of the society is not facilitated. The discharge of building waste occupies a large amount of land, pollutes soil and underground water sources, influences the appearance of cities and other social problems, and becomes an important subject facing building waste management departments and environmental protection departments.
Therefore, the resource utilization of the building muck is a necessary trend, measures of backfilling and burying are more adopted for treating the engineering muck at present, the cyclic recycling at a treatment terminal is less, and the treatment technology content of the building muck is lower. The disposal of the building residue soil should develop towards the direction of recycling and environment-friendly industry, and the utilization range of the building residue soil is expanded, such as building residue soil bricks, road bed fillers and the like, which have obvious economic and social benefits. In the process of utilizing the building muck, fly ash, cement, lime and other solidified materials are stirred, paved and filled by mainly utilizing an excavator or a fixed mixing station on a construction site, which is feasible for sandy soil, silt and common cohesive soil, but the application of large-scale industrial and industrial treatment is not developed. However, in the coastal region of the south of the east, fine grained soil with high natural water content, large pore ratio, high compressibility and low shear strength deposited on coastal regions, lakes and marshes, valley areas and beaches is widely distributed. The high-viscosity natural water-content concrete has the characteristics of high natural water content, large natural pore ratio, high compressibility, low shear strength, small consolidation coefficient, long consolidation time, high sensitivity, high disturbance, poor water permeability, complex soil layer distribution, large difference of physical and mechanical properties among layers and the like. The building residue soil has high water content, large viscosity and difficult decomposition, is difficult to be uniformly stirred with a curing material by using an excavator and a mixing station on site, generally needs to be subjected to decomposition and mixing construction after airing and dewatering, is greatly influenced by weather, and has lower work efficiency.
Since the turner is a mechanical device developed and produced based on dynamic composting, a mechanical device for improving oxygen supply and material shape in aerobic fermentation composting, called turner, also called pile turner, was originally developed by BACKHUS company in Germany. In recent years, domestic turners are continuously perfected, popularized and applied, for example, a soil turning device of application number 201821899456.6 aims to solve the problem that the depth of a turning roller on the ground is shallow and soil cannot be effectively turned up due to insufficient lifting power of the original turning device; the utility model of application No. 201821899456.6 provides a soil turning and throwing device (including a main supporting component, a lifter component, a turning and throwing supporting component, a turning and throwing component and a driving machine component), the invention of application No. 201811170730.0 discloses an intelligent turning and throwing device for organic garbage fermentation, so as to improve the automation degree of the device, reduce the labor intensity of personnel, control and stir the temperature, the humidity and the oxygen content in the whole turning and throwing process according to the biological fermentation principle, and improve the turning and throwing efficiency; the chain plate type movable groove-changing turning device of application No. 201922002158.3 provides a chain plate type movable groove-changing turning device, solves the problems in the prior art, can realize groove moving and groove changing by arranging a steering mechanism on a track on a pit groove wall and at the bottom of a turning machine and adding a movable support with smaller occupied space, saves occupied space and improves working efficiency; the patent of application No. 201820367337 provides a large-span rail mounted organic waste biological fermentation bed padding machine of turning over, adopts rail mounted large-span design, and the fermentation bed abandons multislot formula structure, gets rid of the middle wall body of concrete capital construction, and the fermentation bed volume is bigger, and the investment is more economized. However, the prior art still has difficulty in solving the problems of decomposition, turning and stirring of the building muck with high water content and high viscosity soil.
In order to solve the problem of decomposition of the building residue soil with high water content and high viscosity, a decomposition system and a decomposition method of the building residue soil with high water content are required to be provided, so that the decomposition system and the decomposition method are suitable for the problems of decomposition, turning and stirring of the building residue soil with high water content and high viscosity soil.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a decomposition system and a decomposition method for high-water-content building muck, which are used for solving or partially solving the problems that the building muck is high in water content, large in viscosity and difficult to decompose, is difficult to stir with a solidified material uniformly by stirring with an excavator and a stirring station on site, needs to be subjected to decomposition and stirring construction after airing and dewatering, is greatly influenced by weather, is low in work efficiency and the like.
The decomposition system of the building residue soil with high water content comprises a turner host machine, a turner device, an automatic material spreading system, a dust collection system, a spraying system and a control system.
The main machine of the turner comprises a turner bracket and a walking driving motor; the support of the turner comprises a cross beam and a vertical beam, the cross beam and the vertical beam are connected by bolts, and a series of connecting rod pieces are arranged between the cross beam and the vertical beam, so that the support of the turner is stable and has larger bearing performance; two groups of walking rollers which are arranged in a front-back mode on two sides of the turner support are arranged on a rail on the supporting structure, the walking rollers are supported on the rail to drive the support to move back and forth along the rail, the turner support is erected above building muck, and the building muck is located in the supporting structure.
The turning device comprises a transmission mechanism at the lower part of the turning machine bracket and a turning shaft in the horizontal direction, the turning shaft is connected with a turning driving motor through the transmission mechanism, and the turning driving motor is positioned on the turning machine bracket; the surface of the turning shaft is provided with a turning roller, the turning roller is provided with a spiral turning blade, the middle part of the turning roller is also provided with a vertical turning blade, and the end part of the vertical turning blade is provided with a turning hook; the turning driving motor drives the turning shaft to be linked with the turning roller, turning, decomposing and mixing stirring are carried out on the building waste soil and the solidified materials in the storage hopper, and meanwhile, the building waste soil and the solidified materials are turned backwards by the roller and are stacked loosely.
The automatic material spreading system comprises a storage hopper, a servo motor, a vibrator, a buffer spring, a material guide plate, a rotating roll shaft, a material guide hole, a material guide groove, an upper driving wheel, a lower driving wheel and a driving belt; the automatic material spreading system is arranged on the mounting plate, and the mounting plate is connected with the cross beam and the vertical beam; the storage hopper is positioned at the upper part of the turner bracket and stores powdery curing materials; the servo motor is positioned on the mounting plate and drives the rotating roll shaft to rotate at a certain speed, the rotating roll shaft is provided with material guide holes, a material guide plate is arranged below the rotating roll shaft and is provided with material guide grooves, powder-shaped curing materials uniformly flow out of the material guide holes and then enter the corresponding material guide grooves on the material guide plate, and the powder-shaped curing materials are uniformly spread on the surface of the building residue soil after sliding down from the material guide grooves. The material guide plate is supported on the mounting plate by a buffer spring, and a vibrator is arranged below the material guide plate so that the powdery solidified material can smoothly flow out through proper vibration and is spread on the surface of the building residue soil. In order to prevent excessive powder solidified materials from being lifted and splashed in the air in the turning process, the front part and the rear part of the turning machine support are respectively provided with a baffle plate, and the front part and the rear part of the turning machine support are matched with a dust collection system to control dust, so that the amount of the dust diffused out of the turning machine is reduced. The rotary roll shaft and the servo motor are respectively connected with an upper transmission wheel and a lower transmission wheel, and the upper transmission wheel and the lower transmission wheel are connected through a transmission belt.
The dust collection system comprises a dust collection system host, a dust collection head and a material return pipe; the dust collection system host is located storage hopper one side, and the dust collection system host includes motor, vacuum pump, dust remover, silencer and unloading valve, and the dust absorption head is located bearing structure top, and the dust absorption head passes through the hose and links to each other with the dust collection system host, and the dust collection system host is connected to the storage hopper through the feed back pipe, and the sufficient dirty air of vacuum pump suction is to carry to the dust remover in, open the unloading valve again and carry the dust in the dust remover to the storage hopper through the feed back pipe.
The spraying system comprises a water tank, a spraying main rod, spray heads and a spray rod, wherein the water tank is arranged on the support of the turner, the water tank is connected with the spray rod through the spraying main rod, a plurality of spray heads are distributed on the spray rod, the spray rod is placed on a support rod positioned at the rear part of the support of the turner, and the support rod is connected with the support of the turner; in the spraying process, the spraying end can spray the atomized liquid to continuously move forward along with the turning machine, and most of the air containing the atomized liquid is located behind the turning machine, so that the flying dust is sprayed and removed. When the main machine of the turner runs reversely, the main machine of the turner can be adjusted to the reverse direction.
The control system comprises an industrial personal computer, a PLC (programmable logic controller), a switch and a data acquisition card, wherein the data acquisition card is connected with the PLC through the Ethernet and the switch, and the PLC is connected with the industrial personal computer through the Ethernet; the data acquisition card transmits data to the PLC through the Ethernet and the switch; the PLC controller sends the processed data to an industrial personal computer through the Ethernet; the industrial personal computer, the PLC, the switch and the data acquisition card are all located on the remote operation platform.
Preferably, the method comprises the following steps: the main machine of the turner can be the existing groove type turner or walking type turner, and the diameter of the turner roller is 30-50 cm.
Preferably, the method comprises the following steps: the turner is controlled by a microcomputer, does not have a return path and works bidirectionally, the working width of a single groove covers 3-6m, and a plurality of grooves can be infinitely arranged in parallel to increase the production capacity at any time.
Preferably, the method comprises the following steps: the vertical turning and throwing blades and the turning and throwing shaft are fastened through bolts and are arranged in a staggered mode, the distance is 5-10cm, and the length of the blades is 20-40 cm.
Preferably, the method comprises the following steps: the turning depth can reach 0.5m-0.8m, and the building residue soil loose-laying height is not more than 1 m.
Preferably, the method comprises the following steps: the powdery solidification material can be one or a mixture of more of fly ash, medium fine sand or quicklime, and the mixing amount is 5-10%.
Preferably, the method comprises the following steps: the rotating speed of the rotating roll shaft is controlled by a control system according to the paving height and width of the building residue soil, the running speed of the turner and the mixing amount of the powder-shaped solidifying materials, and the servo motor is controlled by the control system to drive the rotating roll shaft to rotate at a certain speed, so that the powder-shaped solidifying materials uniformly flow into the material guide groove and are further spread on the surface of the building residue soil.
Preferably, the method comprises the following steps: the aperture of the material guide hole is preferably 0.3-0.6 mm.
Preferably, the method comprises the following steps: the vacuum pressure of the dust collection system is 200 plus 260mbar, and the air quantity of the motor is 300 plus 380m3And/h, and should be comprehensively determined according to the particle size of the mixed powder-shaped curing material.
The decomposition method of the decomposition system of the building residue soil with high water content comprises the following steps:
s1, paving building residue soil: after the building muck is transported to a disposal site, backing and unloading the muck in the range of the groove width along the advancing direction of the turner and the decomposition system by a muck truck, stacking the muck into a strip stack shape, and leveling the surface of the muck by utilizing excavating equipment so that the loose laying height of the muck is not more than 1.0 m; in the process, the turner and the decomposition system are moved to the direction far away from the soil unloading direction;
s2, mixing the powder curing material: calculating the square amount of the building residue soil in unit area according to the height of the leveled building residue soil and the width of the groove width, and determining the application amount of the powder curing material on the surface of the building residue soil in unit area according to the doping amount percentage of the powder curing material in the building residue soil;
s3, spreading powder curing material: after the spreading amount of the powdery curing material on the surface of the building residue soil in unit area is calculated and determined, setting forward and backward movement operation parameters of the turner and operation parameters of a spreading rotating roll shaft, so that the operation and discharge speeds under the matching condition of the forward and backward movement operation parameters and the operation parameters of the spreading rotating roll shaft can meet the requirement of the spreading amount of the powdery curing material on the surface of the building residue soil in unit area; starting a control system of the turner and the decomposing system to enable a walking roller of the turner to start running, starting a servo motor of the automatic spreading system to enable a rotating roller shaft to rotate, enabling the powdery solidified material in the storage hopper to flow out along a guide hole on the rotating roller shaft, and then spreading the powdery solidified material on the surface of the building muck along a guide chute on a guide plate;
in order to prevent excessive powder solidified materials from being lifted and splashed in the air in the turning process, the dust collection system is started by virtue of the baffles at the front part and the rear part of the turning machine, and dust lifted in the turning decomposition system is sucked and controlled at a low gear, so that the amount of the dust diffused to the outside of the turning machine is reduced; dust diffused outside the turner is removed by adopting a spraying system;
s4, turning and decomposing building residue soil: after the powdery curing materials are spread, setting forward and backward movement operation parameters of an upturning machine of an industrial personal computer and rotation speed parameters of a turning shaft, starting the upturning machine, a dust absorption system and a spraying system, driving the upturning machine and a decomposition system to move back and forth on a track by a walking driving motor, driving the turning shaft to rotate by a turning driving motor and driving a turning roller to rotate, turning, decomposing and mixing building muck and the powdery curing materials by a spiral turning blade and a vertical turning blade on the turning roller, and turning the building muck and the curing materials backwards by the turning roller and stacking the building muck and the curing materials loosely; in the turning decomposition process, the dust collection system operates at a high level, dust raised inside the turning system is sucked and controlled, the amount of the dust diffused outside the turning system is reduced, and the dust diffused outside the turning system is removed by using the spraying system; the turning and throwing times of the building muck are 3-4 times per tank, and the turning and throwing times are properly adjusted according to the water content of the building muck and the mixing amount of the powdery curing material;
s5, automatic control of a decomposition system: the operation parameters of the turner in the building muck turning decomposition process are set on an industrial personal computer interface of a remote operation console, the operation parameters of the spreading rotating roll shaft and the rotation speed parameters of the turning shaft are controlled by a PLC through an Ethernet and a switch, and after the relevant parameters are set, the operation parameters of the turner, the operation parameters of the spreading rotating roll shaft and the rotation speed parameters of the turning shaft are selected and determined to start a building muck turning decomposition system; and after the turning is finished, stopping selection, and closing the building residue soil turning decomposition system.
The invention has the beneficial effects that:
1. compared with the construction method that the building muck and the solidified material are decomposed by an excavator or a mixing station, and then are subjected to decomposition and mixing construction after being aired and dehydrated, the invention decomposes the building muck with high water content and high viscosity by using the turner and the decomposition system, can realize industrialization of building muck treatment, is little influenced by weather, has high work efficiency, and reduces the labor intensity of workers.
2. The invention utilizes the microcomputer to operate and control the turner and the material spreading system, the turner decomposition system has no return and bidirectional work, can infinitely parallel a plurality of grooves, can expand the production capacity at any time, the automatic material spreading system can accurately distribute powder curing materials, and the turner drum is provided with the spiral turner blade and the vertical turner blade to fully turn, decompose and mix the building residue soil and the curing materials, thereby achieving the expected effect.
3. The invention is provided with the dust collection system and the spraying system, so that dust raised in the turning system is sucked and controlled, the quantity of the dust diffused to the outside of the turning system is reduced, the dust diffused to the outside of the turning system is removed by using the spraying system, and the environment quality of an operation site is improved.
4. The turner and the decomposing system have the characteristics of reasonable structure, convenience in installation, uniformity in turning, low power consumption and low equipment cost, can automatically control operation, and saves labor cost.
Drawings
FIG. 1 is an elevation view of a building muck decomposition system (turning machine);
FIG. 2 is a cross-sectional view of a construction residue soil decomposition system (turning machine);
FIG. 3 is a schematic view of an automatic material spreading system;
FIG. 4 is a schematic diagram of a control system;
FIG. 5 is a schematic view of ellipsoidal particles formed by mixing, stirring and molding;
FIG. 6 is a graph showing compressive strength of soil after curing;
FIG. 7 is a graph showing the compressive strength of soil after immersion in water.
Description of reference numerals: 1-turning machine support; 2-turning over a driving motor; 3-a walking driving motor; 4-a transmission mechanism; 5-turning the throwing shaft; 6-spirally turning and throwing the blades; 7-vertically turning and throwing the leaves; 8-turning and throwing the hook; 9-a walking roller; 10-a support structure; 11-a storage hopper; 12-a feed back pipe; 13-a dust collection system host; 14-a suction head; 15-a water tank; 16-a main spray rod; 17-a spray head; 18-a spray bar; 19-a strut; 20-a baffle plate; 21-a vibrator; 22-a buffer spring; 23-a material guide plate; 24-a rotating roll shaft; 25-construction residue soil; 26-a mounting plate; 27-driving wheels are arranged; 28-lower driving wheel; 29-a transmission belt; 30-a servo motor; 31-material guiding holes; 32-a material guide groove; 33-a track; 34-turning over the throwing roller; 35-a cross beam; 36-vertical beam.
Detailed Description
The present invention will be further described with reference to the following examples. The following examples are set forth merely to aid in the understanding of the invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
In order to solve the decomposition problem of the high-water-content and viscous building residue soil, the invention improves the structures and the arrangement modes of a spiral turning blade and an upright turning blade by increasing the motor power, additionally arranging an automatic material spreading system, a dust collecting system and a spraying system on the basis of the turning machine technology in the field of organic waste biological fermentation, so that the spiral turning blade and the upright turning blade are suitable for the decomposition, turning and stirring problems of the high-water-content and viscous soil of the building residue soil, and further provides a decomposition system and a decomposition method of the high-water-content building residue soil. Compared with the traditional method for decomposing the building residue soil and the solidified materials by utilizing an excavator on site or a mixing station, the invention utilizes a microcomputer to operate the turner and the decomposition system to decompose the building residue soil with high water content and large viscosity, and the spiral turner blade and the vertical turner blade arranged on the turner drum can fully turn up, decompose, stir and uniformly mix the building residue soil and the solidified materials, thereby achieving the expected effect; the dust collection system and the spraying system can suck and control dust raised inside the turning system, reduce the amount of the dust diffused outside the turning system, remove the dust diffused outside the turning system by using the spraying system and improve the environment quality of an operation site. The invention can realize industrialization of building muck treatment, reduce labor intensity of workers, has high work efficiency, can infinitely parallel a plurality of grooves and can amplify production capacity at any time.
Example one
As shown in fig. 1-4, the decomposition system of the high-water content building residue soil comprises a turner host, a turner device, an automatic material spreading system, a dust collection system, a spraying system and a control system.
The main machine of the turner shown in figures 1-3 comprises a turner bracket 1 and a walking drive motor 3; the support of the turner comprises a cross beam 35 and a vertical beam 36, the cross beam and the vertical beam are connected by bolts, and a series of connecting rod pieces are arranged between the cross beam and the vertical beam, so that the support 1 of the turner is stable and has larger bearing performance; two groups of walking rollers 9 which are arranged in a front-back mode on two sides of the turner bracket 1 are arranged on rails 33 on the supporting structure 10, the walking rollers 9 are supported on the rails to drive the bracket to move back and forth along the rails, the turner bracket 1 is erected above building residue soil 25, and the building residue soil 25 is located in the supporting structure 10.
The turning device shown in fig. 1-3 comprises a transmission mechanism 4 at the lower part of a turning machine bracket 1 and a turning shaft 5 in the horizontal direction, wherein the turning shaft 5 is linked with a turning driving motor 2 through the transmission mechanism 4, and the turning driving motor 2 is positioned on the turning machine bracket 1; the surface of the turning shaft 5 is provided with a turning roller 34, the turning roller 34 is provided with a spiral turning blade 6, the middle part of the turning roller 34 is also provided with a vertical turning blade 7, and the end part of the vertical turning blade 7 is provided with a turning hook 8; the turning driving motor 2 drives the turning shaft 5 and the turning roller 34 to be linked, so that the building muck 25 and the curing materials in the storage hopper 11 are turned, decomposed, mixed and stirred, and meanwhile, the building muck and the curing materials are turned backwards by the roller and are loosely stacked.
The automatic material spreading system shown in fig. 1-3 comprises a storage hopper 11, a servo motor 30, a vibrator 21, a buffer spring 22, a material guide plate 23, a rotary roller shaft 24, a material guide hole 31, a material guide chute 32, an upper driving wheel 27, a lower driving wheel 28 and a driving belt 29; the automatic material spreading system is arranged on the mounting plate 26, and the mounting plate 26 is connected with the cross beam 35 and the vertical beam 36; the storage hopper 11 is positioned at the upper part of the turner bracket 1, and powdery curing materials are stored in the storage hopper 11; the servo motor 30 is positioned on the mounting plate 26, the servo motor 30 drives the rotating roll shaft 24 to rotate at a certain speed, the rotating roll shaft 24 is provided with a material guide hole 31, a material guide plate 23 is arranged below the rotating roll shaft 24, the material guide plate 23 is provided with a material guide groove 32, powder-shaped solidified materials uniformly flow out of the material guide hole 31 and then enter the material guide groove 32 corresponding to each other on the material guide plate 23, and the powder-shaped solidified materials slide down from the material guide groove 32 and then are uniformly spread on the surface of the building residue soil 25. The guide plate 23 is supported on the mounting plate 26 by the buffer spring 22, and a vibrator 21 is disposed under the guide plate 23 to allow the powder-like solidified material to smoothly flow out and spread on the surface of the construction waste 25 by appropriate vibration. In order to prevent excessive powder solidified materials from being lifted and splashed in the air in the turning process, the front part and the rear part of the turning machine support 1 are respectively provided with a baffle 20 which is matched with a dust collection system to control dust and reduce the amount of the dust diffused to the outside of the turning machine.
The dust collection system shown in fig. 1-3 comprises a dust collection system main machine 13, a dust collection head 14 and a material return pipe 12; the dust collection system host 13 is located one side of the storage hopper 11, the dust collection system host 13 comprises a motor, a vacuum pump, a dust remover, a silencer, an ash discharge valve and the like, the dust collection head 14 is located above the supporting structure 10, the dust collection head 14 is connected with the dust collection system host 13 through a hose, the dust collection system host 13 is connected to the storage hopper 11 through a material return pipe 12, the vacuum pump sucks enough dust-containing air and conveys the dust-containing air into the dust remover, and then the ash discharge valve is opened to convey dust in the dust remover into the storage hopper 11 through the material return pipe 12.
The spraying system shown in fig. 1-3 comprises a water tank 15, a main spraying rod 16, spray heads 17 and a spray rod 18, wherein the water tank 15 is installed on the support frame 1 of the turner, the water tank 15 is connected with the spray rod 18 through the main spraying rod 16, a plurality of spray heads 17 are distributed on the spray rod 18, the spray rod 18 is placed on a support rod 19 positioned at the rear part of the support frame 1 of the turner, and the support rod 19 is connected with the support frame of the turner; in the spraying process, the spraying end can spray the atomized liquid to continuously move forward along with the turning machine, and most of the air containing the atomized liquid is located behind the turning machine, so that the flying dust is sprayed and removed. When the main machine of the turner runs reversely, the main machine of the turner can be adjusted to the reverse direction.
The control system shown in fig. 4 comprises an industrial personal computer, a PLC (programmable logic controller), a switch and a data acquisition card, wherein the data acquisition card is connected with the PLC through the Ethernet and the switch, and the PLC is connected with the industrial personal computer through the Ethernet; the data acquisition card transmits data to the PLC through the Ethernet and the switch; the PLC controller sends the processed data to an industrial personal computer through the Ethernet; the industrial personal computer, the PLC, the switch and the data acquisition card are all located on the remote operation platform.
In the embodiment, the main machine 1 of the turner can be a conventional trough type turner or a walking type turner, the diameter of a turner roller is 30-50cm, the turner roller is controlled by a microcomputer, the turner roller does not return and works bidirectionally, the working width of a single trough covers 3-6m, a plurality of troughs can be infinitely arranged in parallel, and the production capacity can be expanded at any time.
In the embodiment, the vertical turning and throwing blades and the turning and throwing shaft are fastened by bolts and are arranged in a staggered mode, the distance is 5-10cm, the length of the blades is 20-40cm, and soil leakage is avoided. The turning depth can reach 0.5m-0.8 m.
In this embodiment, the powdery solidification material may be fly ash, medium fine sand, quicklime, or a mixture of the above materials, and the mixing amount is 5% -10%.
In this embodiment, the rotation speed of the rotating roller 24 should be controlled by the control system according to the paving height and width of the building residue soil, the operating speed of the turner and the blending amount of the powder-like solidified material, and the servo motor is driven by the control system to rotate at a certain speed, so that the powder-like solidified material flows into the material guide chute at a uniform speed and is further spread on the surface of the building residue soil.
In this embodiment, the vacuum pressure of the dust collection system is 200-3And/h, and should be comprehensively determined according to the particle size of the mixed powder-shaped curing material.
In this embodiment, the aperture of the material guiding hole 31 is preferably 0.3-0.6 mm.
In this embodiment, the rotary roller shaft 24 and the servo motor 30 are respectively connected to an upper driving wheel 27 and a lower driving wheel 28, and the upper driving wheel 27 and the lower driving wheel 28 are connected through a driving belt 29.
Example two
The decomposition method of the decomposition system of the high-water-content building residue soil mainly comprises the following steps:
and S1, paving the building residue soil. After the building muck is transported to a disposal site, backing and unloading the muck in the range of the groove width along the advancing direction of the turner and the decomposition system by the muck truck, stacking the muck into a strip stack shape, and leveling the surface of the muck by utilizing excavating equipment so that the loose laying height of the muck is not more than 0.8 m. In the process, the turner and the decomposing system are moved to a direction far away from the soil unloading.
S2, mixing the powder curing material. And calculating the square amount of the building residue soil in unit area according to the height of the leveled building residue soil and the width of the groove width, and determining the spreading amount of the powder curing material on the surface of the building residue soil in unit area according to the doping amount percentage of the powder curing material in the building residue soil of the type.
S3, spraying the powder solidified material. After the spreading amount of the building residue soil surface powder curing material on a unit area is determined through calculation, forward-moving and backward-moving operation parameters of the turner and operation parameters of a spreading rotating roll shaft are set, so that the operation and discharge speeds under the matching condition of the forward-moving and backward-moving operation parameters and the spreading rotating roll shaft operation parameters can meet the requirement of the spreading amount of the building residue soil surface powder curing material on the unit area. And starting a control system of the turner and the decomposition system to enable a walking roller of the turner to start running, starting a servo motor of the automatic material spreading system to enable a rotating roller shaft to rotate, enabling the powder solidified materials in the storage hopper to flow out along a material guide hole in the roller shaft, and then spreading the powder solidified materials on the surface of the building muck along a material guide groove in a material guide plate.
In order to prevent excessive powder solidified materials from being lifted and splashed in the air in the turning process, the dust suction system is started by means of the front baffle and the rear baffle of the turning machine, and dust lifted in the turning decomposition system is sucked and controlled at a low gear, so that the amount of the dust diffused to the outside of the turning machine is reduced. And dust diffused outside the turner is removed by adopting a spraying system.
And S4, turning and decomposing the building residue soil. After the powder curing material is spread, setting forward and backward movement operation parameters of an industrial personal computer upturning machine and rotation speed parameters of a turning shaft, starting the upturning machine, a dust absorption system and a spraying system, driving the upturning machine and a decomposition system to move back and forth on a track by a walking driving motor, driving the turning shaft to rotate by the upturning driving motor and driving a turning drum to rotate, and carrying out crushing, decomposition and mixing stirring on the building residue soil and the powder curing material by a spiral turning blade and a vertical turning blade on the turning shaft, and meanwhile turning the building residue soil and the curing material backwards by the drum and stacking the building residue soil and the curing material loosely. In the turning decomposition process, the dust collection system operates at a high level, dust raised inside the turning system is sucked and controlled, the amount of the dust diffused outside the turning system is reduced, and the dust diffused outside the turning system is removed by the spraying system. The turning and throwing times of the building muck are 3-4 times per tank, and the turning and throwing times are properly adjusted according to the water content of the building muck and the mixing amount of the powder solidifying material.
And S5, automatically controlling the decomposition system. The operation parameters of the turner in the building muck turning decomposition process are set on an industrial personal computer interface of a remote operation console, the operation parameters of the spreading rotating roll shaft and the rotation speed parameters of the turning shaft are controlled by a PLC through an Ethernet and a switch, and after the relevant parameters are set, the operation parameters of the turner, the operation parameters of the spreading rotating roll shaft and the rotation speed parameters of the turning shaft are selected and determined to start a building muck turning decomposition system; and after the turning is finished, stopping selection, and closing the building residue soil turning decomposition system.
EXAMPLE III
The embodiment depends on the science popularization center project of the future city in the Ningbo voyage area, the project is a comprehensive public service project of the city integrating multiple functions of planning and displaying, academic research, cultural communication, education practice, business leisure and the like, the occupied area is 56777 square meters, and the building area is about 1.9 ten thousand square meters. The excavation of large foundation pits in engineering generates a large amount of engineering muck, and according to sampling and test results in the early stage, the muck in the field is mainly soft soil, and the water content is more than 40%. Therefore, a decomposition test was conducted by taking the construction soil of the project as an example. The method comprises the following steps:
(1) and (5) paving the building muck. Two vehicles of building residue soil for test, about 40m3After the building residue soil is transported to a disposal test site, the soil is discharged and stacked into a strip stack shape, and the surface of the residue soil is excavated and leveled, so thatThe loose height is 0.6 m.
(2) The water content of the soil body is measured to be 42.1 percent, and the fly ash is used as a decomposition curing material with the mixing amount of 10 percent. Setting the running speed of the turner to be 5km/h for spreading materials, and spreading the materials on the surface of the building residue soil. And (5) starting a dust collection system, and controlling the suction of dust raised in the turning decomposition system at a low gear.
(3) After the powder curing material is spread, the forward moving speed and the backward moving speed of the turner are set according to the running speed of 5km/h, the rotating speed of a turner shaft is 1000 r/min, a dust collection system and a spraying system are started at the same time, and the turning times are 4 times.
After the turning and throwing are finished, the building residue soil and the fly ash mixed soil are kept stand for 2 days, and then are mixed and stirred with the curing agent, and are molded into ellipsoidal particles, as shown in figure 5. The results of the sampling test are shown in FIGS. 6 and 7: as can be seen from FIG. 6, the compressive strength of the solidified soil is between 2.7 and 3.4MPa in 7 days; and after 24h of soaking, the strength of the product is greatly reduced, as shown in figure 7.
Claims (10)
1. The utility model provides a decomposition system of high water content building dregs which characterized in that: comprises a turner host machine, a turner device, an automatic material spreading system, a dust collection system, a spraying system and a control system;
the main machine of the turner comprises a turner bracket (1) and a walking drive motor (3); the turner bracket (1) comprises a cross beam (35) and a vertical beam (36), the cross beam is connected with the vertical beam through a bolt, and a connecting rod piece is arranged between the cross beam and the vertical beam; two groups of walking rollers (9) which are arranged in a front-back manner on two sides of a turner bracket (1) are arranged on a track (33) on a supporting structure (10), the turner bracket (1) is erected above building muck (25), and the building muck (25) is positioned in the supporting structure (10);
the turning device comprises a transmission mechanism (4) at the lower part of a turning machine bracket (1) and a turning shaft (5) in the horizontal direction, the turning shaft (5) is connected with a turning driving motor (2) through the transmission mechanism (4), and the turning driving motor (2) is positioned on the turning machine bracket (1); the surface of the turning shaft (5) is provided with a turning roller (34), the turning roller (34) is provided with a spiral turning blade (6), the middle part of the turning roller (34) is also provided with a vertical turning blade (7), and the end part of the vertical turning blade (7) is provided with a turning hook (8);
the automatic material spreading system comprises a storage hopper (11), a servo motor (30), a vibrator (21), a buffer spring (22), a material guide plate (23), a rotary roll shaft (24), a material guide hole (31) and a material guide groove (32); the automatic material spreading system is arranged on the mounting plate (26), and the mounting plate (26) is connected with the cross beam (35) and the vertical beam (36); the storage hopper (11) is positioned at the upper part of the turner bracket (1), and powdery solidified materials are stored in the storage hopper (11); the servo motor (30) is positioned on the mounting plate (26), the servo motor (30) is connected with the rotating roll shaft (24), the rotating roll shaft (24) is provided with a material guide hole (31), a material guide plate (23) is arranged below the rotating roll shaft (24), and the material guide plate (23) is provided with a material guide groove (32); the material guide plate (23) is supported on the mounting plate (26) by a buffer spring (22), and a vibrator (21) is arranged below the material guide plate (23); the front part and the rear part of the turner bracket (1) are respectively provided with a baffle (20);
the dust collection system comprises a dust collection system main machine (13), a dust collection head (14) and a material return pipe (12); the dust collection system host (13) is positioned on one side of the storage hopper (11), the dust collection head (14) is positioned above the supporting structure (10), the dust collection head (14) is connected with the dust collection system host (13) through a hose, and the dust collection system host (13) is connected to the storage hopper (11) through a material return pipe (12);
the spraying system comprises a water tank (15), a spraying main rod (16), spray heads (17) and a spray rod (18), wherein the water tank (15) is installed on the turning and throwing machine support (1), the water tank (15) is connected with the spray rod (18) through the spraying main rod (16), the spray rod (18) is provided with a plurality of spray heads (17), the spray rod (18) is placed on a support rod (19) positioned at the rear part of the turning and throwing machine support (1), and the support rod (19) is connected with the turning and throwing machine support;
the control system comprises an industrial personal computer, a PLC (programmable logic controller), a switch and a data acquisition card, wherein the data acquisition card is connected with the PLC through an Ethernet and the switch, the PLC is connected with the industrial personal computer through the Ethernet, and the industrial personal computer, the PLC, the switch and the data acquisition card are all located on a remote operation platform.
2. The decomposition system for high water content construction waste according to claim 1, wherein: the main machine of the turner is a groove type turner or a walking type turner, and the diameter of the turner roller is 30-50 cm.
3. The decomposition system for high water content construction waste according to claim 1, wherein: the working width of the single groove of the turner covers 3-6 m.
4. The decomposition system for high water content construction waste according to claim 1, wherein: the vertical turning and throwing blades (7) are fastened with the turning and throwing shaft (5) through bolts, the vertical turning and throwing blades (7) are arranged in a staggered mode, the distance is 5-10cm, and the length of the blades is 20-40 cm.
5. The decomposition system for high water content construction waste according to claim 1, wherein: the powdery solidification material is one or a mixture of more of fly ash, medium fine sand or quicklime.
6. The decomposition system for high water content construction waste according to claim 1, wherein: the aperture of the material guide hole (31) is 0.3-0.6 mm.
7. The decomposition system for high water content construction waste according to claim 1, wherein: the vacuum pressure of the dust collection system is 200 plus 260mbar, and the air quantity of the motor is 300 plus 380m3/h。
8. The decomposition system for high water content construction waste according to claim 1, wherein: the rotary roll shaft (24) and the servo motor (30) are respectively connected with an upper transmission wheel (27) and a lower transmission wheel (28), and the upper transmission wheel (27) and the lower transmission wheel (28) are connected through a transmission belt (29).
9. The decomposition system for high water content construction waste according to claim 1, wherein: the dust collection system main machine (13) comprises a motor, a vacuum pump, a dust remover, a silencer and an ash discharge valve.
10. A decomposition method of the decomposition system of high water content construction waste according to claim 1, comprising the steps of:
s1, paving building residue soil: after the building muck is transported to a disposal site, backing and unloading the muck in the range of the groove width along the advancing direction of the turner and the decomposition system by a muck truck, stacking the muck into a strip stack shape, and leveling the surface of the muck by utilizing excavating equipment so that the loose laying height of the muck is not more than 1.0 m; in the process, the turner and the decomposition system move to the direction far away from the soil unloading direction;
s2, mixing the powder curing material: calculating the square amount of the building residue soil in unit area according to the height of the leveled building residue soil and the width of the groove width, and determining the application amount of the powder curing material on the surface of the building residue soil in unit area according to the doping amount percentage of the powder curing material in the building residue soil;
s3, spreading powder curing material: after calculating and determining the spreading amount of the powdery curing material on the surface of the building residue soil in unit area, setting forward-moving and backward-moving operation parameters of the turner and operation parameters of a spreading rotating roll shaft; starting a control system of the turner and the decomposing system to enable a walking roller of the turner to start running, starting a servo motor (30) of the automatic spreading system to enable a rotating roll shaft (24) to rotate, enabling powder-shaped solidified materials in a storage hopper (11) to flow out along a material guide hole (31) on the rotating roll shaft (24), and then spreading the powder-shaped solidified materials on the surface of building residue soil along a material guide groove (32) on a material guide plate (23); by means of baffles at the front part and the rear part of the turner, a dust collection system is started, and dust raised in the turner decomposition system is sucked and controlled at a low gear; dust diffused outside the turner is removed by adopting a spraying system;
s4, turning and decomposing building residue soil: after the powdery solidification materials are completely spread, setting forward and backward movement operation parameters of an industrial personal computer upturning machine and rotation speed parameters of a turning shaft, starting the upturning machine, a dust absorption system and a spraying system, driving the upturning machine and a decomposition system to move back and forth on a track (33) by a walking driving motor (3), driving a turning shaft (5) to rotate by a turning driving motor (2) and driving a turning roller (34) to rotate, turning, decomposing and mixing building muck and the powdery solidification materials by a spiral turning blade (6) and an upright turning blade (7) on the turning roller (34), and meanwhile turning, decomposing and mixing and stirring the building muck and the solidification materials backwards by the turning roller (34) and stacking the building muck and the solidification materials loosely; in the turning decomposition process, the dust collection system operates at a high level, dust raised inside the turning system is sucked and controlled, and the dust diffused outside the turning system is removed by using the spraying system; the turning and throwing times of the building muck are 3-4 times per tank, and are properly adjusted according to the water content of the building muck and the mixing amount of the powdery curing material;
s5, automatic control of a decomposition system: the operation parameters of the turner in the building muck turning decomposition process are set on an industrial personal computer interface of a remote operation console, the operation parameters of the spreading rotating roll shaft and the rotation speed parameters of the turning shaft are controlled by a PLC through an Ethernet and a switch, and after the relevant parameters are set, the operation parameters of the turner, the operation parameters of the spreading rotating roll shaft and the rotation speed parameters of the turning shaft are selected and determined to start a building muck turning decomposition system; and after the turning is finished, stopping selection, and closing the building residue soil turning decomposition system.
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