Granulation equipment and method for preparing residual sludge soil particles
阅读说明:本技术 制备余泥渣土颗粒的造粒设备及方法 (Granulation equipment and method for preparing residual sludge soil particles ) 是由 梁伟 杨根宏 李正茂 孙国彬 于 2019-09-02 设计创作,主要内容包括:本发明提供了一种制备余泥渣土颗粒的造粒设备及方法,所述制备余泥渣土颗粒的造粒设备包括装配一体的预处理装置、二次处理装置及拌和装置,其中:所述预处理装置包括用于待处理余泥渣土上料的给料机构和筛选组件;所述二次处理装置包括用于依次将来自所述筛选组件的具有目标粒径的余泥渣土进行烘干的烘干机构、进行破碎的破碎机构及进行筛选的筛分机构;所述拌和装置包括固化剂添加构件、胶凝材料添加构件以及余泥渣土添加构件,且所述拌和装置位于所述筛分机构的下方,所述具有目标粒径的余泥渣土经所述筛分机构筛选后进入所述余泥渣土添加构件。本发明通过将待处理余泥渣土造粒成余泥渣土颗粒,可高效回收,方便运输,避免在运送时渗漏。(The invention provides a granulation device and a method for preparing sludge soil particles, wherein the granulation device for preparing the sludge soil particles comprises a pretreatment device, a secondary treatment device and a mixing device which are assembled into a whole, wherein: the pretreatment device comprises a feeding mechanism and a screening assembly, wherein the feeding mechanism is used for feeding the residual sludge and the dregs to be treated; the secondary treatment device comprises a drying mechanism, a crushing mechanism and a screening mechanism, wherein the drying mechanism is used for drying the residual soil with the target particle size from the screening assembly, the crushing mechanism is used for crushing, and the screening mechanism is used for screening; the mixing device comprises a curing agent adding component, a cementing material adding component and a residual soil adding component, the mixing device is positioned below the screening mechanism, and the residual soil with the target particle size enters the residual soil adding component after being screened by the screening mechanism. The invention can efficiently recover the residual sludge soil to be treated into residual sludge soil particles by granulating the residual sludge soil to be treated, is convenient to transport and avoids leakage during transportation.)
1. The utility model provides a granulation equipment of preparation residual sludge dregs soil granule which characterized in that, including the preprocessing device, secondary treatment device and the mixing arrangement of assembly an organic whole, wherein:
the pretreatment device comprises a feeding mechanism for feeding the residual soil to be treated and a screening assembly for screening the residual soil to be treated to obtain the residual soil with a target particle size, wherein a discharge hole of the feeding mechanism is positioned obliquely above the screening assembly, and a discharge hole of the screening assembly is positioned obliquely above the secondary treatment device;
the secondary treatment device comprises a drying mechanism, a crushing mechanism and a screening mechanism, and the residual sludge and dregs with target particle sizes from the screening assembly are sequentially dried by the drying mechanism, crushed by the crushing mechanism and screened by the screening mechanism and then are sent to the mixing device;
the mixing device comprises a stirring tank, a stirring mechanism for stirring the stirring tank, a curing agent adding component for adding a curing agent into the stirring tank, a cementing material adding component for adding a cementing material into the stirring tank, and a residual sludge soil adding component for adding residual sludge soil screened by the screening mechanism into the stirring tank; the mixing device is positioned below the screening mechanism, and the residual soil with the target particle size enters the residual soil adding component after being screened by the screening mechanism.
2. The granulation equipment for preparing the muck soil particles as claimed in claim 1, wherein the curing agent adding member comprises a first weighing hopper for weighing and controlling the amount of the curing agent entering the stirring tank, and the first weighing hopper is fixed at the discharge port of the curing agent adding member through a mounting bracket;
and a second weighing hopper for weighing and controlling the amount of the cementing material entering the stirring tank is arranged below the discharge port of the cementing material adding component, a third weighing hopper for weighing and controlling the amount of the residual sludge soil entering the stirring tank is arranged below the discharge port of the residual sludge soil adding component, and a coarse adding mechanism and a fine adding mechanism are respectively arranged at the discharge port of the cementing material adding component and the discharge port of the residual sludge soil adding component.
3. The granulation apparatus for preparing muck soil particles as claimed in claim 1, wherein said pre-treatment device further comprises a crushing device for pre-crushing said muck soil to be treated, and said crushing device is located between said feeding mechanism and said screening assembly;
the screening assembly comprises a vibrating screening device and a grate component, and the vibrating screening device is positioned in front of the grate component.
4. The granulation apparatus for preparing muck soil particles as claimed in claim 1, wherein said pretreatment device is further provided with a humidifier mechanism for humidifying the muck soil to be treated on said screening assembly.
5. The granulation apparatus for preparing residual dregs soil particles according to claim 1, wherein the drying mechanism comprises a dryer for drying the residual dregs soil with the target particle size, the dryer is provided with a tunnel-shaped drying cavity, and an included angle between a central axis of the drying cavity and a horizontal plane is more than 2 degrees;
screening mechanism includes interval distribution's at least two-layer rubber screen cloth, just screening mechanism locates crushing mechanism's below.
6. The granulation apparatus for preparing muck particles as claimed in claim 1, wherein said crushing means comprises a rotating drum, a rotor member for stirring provided in said rotating drum, and a plurality of scrapers for cleaning an inner wall of said rotating drum, and said rotor member is provided coaxially with said rotating drum; and when the crushing mechanism is driven to operate, the rotating direction of the rotary drum is opposite to that of the rotary piece component.
7. The granulation apparatus for preparing muck soil particles as claimed in claim 6, wherein the rotation speed of the rotating drum of the crushing mechanism is less than the rotation speed of the rotating blade member;
screening mechanism still including being used for detecting the detection subassembly of the humidity size of the sediment dregs soil that has the target particle diameter and be used for with screening mechanism is last the sediment dregs soil that has the target particle diameter moves and carries extremely drying mechanism's bad backward flow transport mechanism, just bad backward flow transport mechanism connects respectively crushing mechanism's bad feed opening with drying mechanism's feed inlet.
8. A method for preparing granules of sludge soil using the granulation apparatus as claimed in any one of claims 1 to 7, characterized by comprising the steps of:
a: adding to-be-treated residual sludge and muck into the pretreatment device, and pretreating the to-be-treated residual sludge and muck through the pretreatment device to obtain residual sludge and muck with a target particle size;
b: drying the residual sludge and residue soil with the target particle size through a drying mechanism of the secondary treatment device, so that the water content of the residual sludge and residue soil with the target particle size is kept at 10% -40%;
c: crushing the residual sludge and residue soil with the target particle size by a crushing mechanism of the secondary treatment device, and screening by a screening mechanism;
d: and c, adding a cementing material, a curing agent and the residual sludge soil obtained in the step c into a stirring tank of the stirring device in a preset proportion, mixing and stirring by the stirring device, and standing to complete granulation of residual sludge soil particles.
9. The method according to claim 8, wherein in the step d, the weight ratio of the cementing material, the curing agent and the residual sludge soil particles added into the stirring tank is 100-150: 0.4-0.5: 2200-3000;
in the step b, the drying temperature of the drying mechanism is more than 60 ℃, and the rotating speed is more than 10 r/min.
10. The method according to claim 8, wherein the particles of the sludge soil obtained by the granulation in the step d have a particle size range of 3-5 mm, 6-9 mm or 10-15 mm and a moisture content of less than or equal to8 percent, the water absorption rate is less than or equal to 50 percent, and the bulk density is 1.1 to 1.3g/cm3And the external shape of the residual sludge soil particles is a sphere or an ellipsoid.
Technical Field
The embodiment of the invention relates to the technical field of building material recovery, in particular to granulation equipment and a method for preparing residual sludge soil particles.
Background
Along with the large-scale construction of cities, the construction engineering projects of high-rise buildings, rail transit and the like are increased rapidly (including a large number of dismantling and rebuilding engineering projects), and because the construction of the construction engineering projects generates a large amount of residual soil, the existing treatment mode mainly carries out centralized treatment (reprocessing treatment, landfill treatment and the like) after being transported away from a construction site, but because the residual soil is mostly muddy waste, the leakage is easy to occur in the transportation process, and the urban environment is influenced.
In addition, the cleaning and washing process of the building engineering project can generate fine small-particle to-be-treated residual soil, the small-particle to-be-treated residual soil is not easy to collect, and the current construction site has no equipment capable of being directly treated, so that the disordered discharge is easily caused, the recycling can not be realized, and the serious problem of environmental pollution can be caused.
Disclosure of Invention
The embodiment of the invention provides granulation equipment and a method for preparing residual sludge soil particles, aiming at the problems that the residual sludge soil is easy to leak in the conveying process, the urban environment is influenced, small particles of the residual sludge soil to be treated cannot be directly treated, the disordered discharge is easy to cause, and the recovery and the recycling cannot be realized.
The technical solution for solving the above technical problems in the embodiments of the present invention is to provide a granulation apparatus for preparing sludge soil particles, which comprises a pretreatment device, a secondary treatment device and a mixing device, wherein the pretreatment device, the secondary treatment device and the mixing device are integrally assembled, wherein:
the pretreatment device comprises a feeding mechanism for feeding the residual soil to be treated and a screening assembly for screening the residual soil to be treated to obtain the residual soil with a target particle size, wherein a discharge hole of the feeding mechanism is positioned obliquely above the screening assembly, and a discharge hole of the screening assembly is positioned obliquely above the secondary treatment device;
the secondary treatment device comprises a drying mechanism, a crushing mechanism and a screening mechanism, and the residual sludge and dregs with target particle sizes from the screening assembly are sequentially dried by the drying mechanism, crushed by the crushing mechanism and screened by the screening mechanism and then are sent to the mixing device;
the mixing device comprises a stirring tank, a stirring mechanism for stirring the stirring tank, a curing agent adding component for adding a curing agent into the stirring tank, a cementing material adding component for adding a cementing material into the stirring tank, and a residual sludge soil adding component for adding residual sludge soil screened by the screening mechanism into the stirring tank; the mixing device is positioned below the screening mechanism, and the residual soil with the target particle size enters the residual soil adding component after being screened by the screening mechanism.
Preferably, the curing agent adding component comprises a first weighing hopper used for weighing and controlling the amount of the curing agent entering the stirring tank, and the first weighing hopper is fixed at the position of a discharge port of the curing agent adding component through a mounting bracket;
and a second weighing hopper for weighing and controlling the amount of the cementing material entering the stirring tank is arranged below the discharge port of the cementing material adding component, a third weighing hopper for weighing and controlling the amount of the residual sludge soil entering the stirring tank is arranged below the discharge port of the residual sludge soil adding component, and a coarse adding mechanism and a fine adding mechanism are respectively arranged at the discharge port of the cementing material adding component and the discharge port of the residual sludge soil adding component.
Preferably, the pretreatment device further comprises a crushing device for performing pre-crushing treatment on the residual sludge soil to be treated, and the crushing device is positioned between the feeding mechanism and the screening assembly;
the screening assembly comprises a vibrating screening device and a grate component, and the vibrating screening device is positioned in front of the grate component.
Preferably, the pretreatment device is further provided with a humidifier mechanism for humidifying the sludge residue soil to be treated on the screening assembly.
Preferably, the drying mechanism comprises a dryer for drying the residual soil with the target particle size, the dryer is provided with a tunnel-shaped drying cavity, and an included angle between a central axis of the drying cavity and a horizontal plane is more than 2 degrees;
screening mechanism includes interval distribution's at least two-layer rubber screen cloth, just screening mechanism locates crushing mechanism's below.
Preferably, the crushing mechanism comprises a rotary drum, a rotor member for stirring and a plurality of scrapers for cleaning the inner wall of the rotary drum, wherein the rotor member is arranged coaxially with the rotary drum; and when the crushing mechanism is driven to operate, the rotating direction of the rotary drum is opposite to that of the rotary piece component.
Preferably, the rotational speed of the rotor of the crushing mechanism is less than the rotational speed of the rotor member;
screening mechanism still including being used for detecting the detection subassembly of the humidity size of the sediment dregs soil that has the target particle diameter and be used for with screening mechanism is last the sediment dregs soil that has the target particle diameter moves and carries extremely drying mechanism's bad backward flow transport mechanism, just bad backward flow transport mechanism connects respectively crushing mechanism's bad feed opening with drying mechanism's feed inlet.
The invention also provides a method for preparing the residual soil particles by using the granulating equipment, which comprises the following steps:
a: adding to-be-treated residual sludge and muck into the pretreatment device, and pretreating the to-be-treated residual sludge and muck through the pretreatment device to obtain residual sludge and muck with a target particle size;
b: drying the residual sludge and residue soil with the target particle size through a drying mechanism of the secondary treatment device, so that the water content of the residual sludge and residue soil with the target particle size is kept at 10% -40%;
c: crushing the residual sludge and residue soil with the target particle size by a crushing mechanism of the secondary treatment device, and screening by a screening mechanism;
d: and c, adding a cementing material, a curing agent and the residual sludge soil obtained in the step c into a stirring tank of the stirring device in a preset proportion, mixing and stirring by the stirring device, and standing to complete granulation of residual sludge soil particles.
Preferably, in the step d, the weight ratio of the cementing material, the curing agent and the residual sludge soil particles added into the stirring tank is 100-150: 0.4-0.5: 2200-3000;
in the step b, the drying temperature of the drying mechanism is more than 60 ℃, and the rotating speed is more than 10 r/min.
Preferably, the particle size of the sludge soil particles obtained by granulation in the step d is 3-5 mm, 6-9 mm or 10-15 mm, the moisture content is less than or equal to 8%, the water absorption rate is less than or equal to 50%, the bulk density is 1.1-1.3 g/cm3, and the external shape of the sludge soil particles is spherical or ellipsoid.
The granulating equipment and the method for preparing the residual sludge soil particles have the following beneficial effects: the pretreatment device, the secondary treatment device and the mixing device are used for granulating the residual sludge and dregs to be treated into solid residual sludge and dreg particles, so that the transportation is convenient, the leakage in the transportation process can be effectively avoided, and the stability in the transportation process is improved; and still through assembling preprocessing device, secondary treatment device and mixing arrangement as an organic whole to can make simple structure, reduce whole volume, improve the convenience of using, and can directly carry out the granulation of pending waste mud dregs at the job site, carry out the recovery processing with high efficiency, prevent that the small granule from handling waste mud dregs in a confused state of mind is discharged, avoids causing environmental pollution.
In addition, according to the granulation equipment and method for preparing the residual sludge soil particles, provided by the embodiment of the invention, the cementing material and the curing agent are added, so that the stability of the granulated residual sludge soil particles can be ensured, and the cyclic recycling of the residual sludge soil particles is facilitated.
Drawings
FIG. 1 is a schematic structural diagram of a granulation apparatus for preparing sludge soil particles according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of the steps of a method for preparing the muck soil particles according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the schematic structural diagram of a granulation apparatus for preparing particles of sludge soil according to an embodiment of the present invention is provided, and the granulation apparatus for preparing particles of sludge soil can be applied to the technical field of building material recovery, especially in the treatment of sludge soil generated in building engineering. The granulation equipment of preparation residual sludge dregs soil granule in this embodiment is including being used for smashing the
Specifically, the
The
The
In order to further simplify the structural design, the
Above-mentioned granulation equipment of preparation residual sludge soil granule is through setting up preprocessing
In addition, above-mentioned granulation equipment of preparation residual sludge soil granule is still through assembling
In order to ensure that the curing agent, the cementing material and the residual soil after being screened by the
Further, a
Of course, in practical applications, when a large distance drop is provided between the first fine addition mechanism and the
Further, a third weighing
In particular, the
Specifically, the
In addition, the
Above-mentioned
The
In order to ensure the crushing effect of the crushing
Above-mentioned
Of course, in practical applications, the number of the rubber screens of the
Additionally, the
The invention also provides a method for preparing the residual sludge soil particles by using the granulation equipment, which comprises the following steps:
s11: the residual muck to be processed is added into the pretreatment device 100 (added by the feeding mechanism 101), is subjected to pre-crushing treatment by the crushing
S12: the sludge soil having the target particle size is dried by the drying means 201 of the
S13: the remaining sludge and muck having a target particle diameter is crushed by the crushing
S14: and (4) adding the cementing material, the curing agent and the residual soil obtained in the step (S13) in a preset ratio into the stirring
According to the method for preparing the residual sludge soil particles, the cementing material and the curing agent are added, so that the stability of the granulated residual sludge soil particles can be ensured, and the cyclic recycling of the residual sludge soil particles is facilitated. And the preparation process is simple, the operability is strong, and the to-be-treated residual sludge soil can be effectively prepared into reusable residual sludge soil particles.
Specifically, in step S14, the weight ratio of the cementing material, the curing agent and the sludge soil particles added into the stirring
Of course, in practical application, the weight ratio of the cementing material, the curing agent and the raw materials of the residual sludge soil particles can be determined according to practical situations.
Further, in order to ensure the drying effect of the
Particularly, the particle size range of the residual sludge soil particles obtained by granulation in the step S14 should be 3-5 mm, 6-9 mm or 10-15 mm, the moisture content should be less than or equal to 8%, the water absorption should be less than or equal to 50%, and the bulk density should be between 1.1-1.3 g/cm3, so as to ensure the recycling value of the residual sludge soil particles obtained by granulation. In addition, the external shape of the residual sludge soil particles obtained by granulation preparation is set to be a sphere or an ellipsoid, so that the preparation is facilitated, the structure and the process design of granulation equipment are convenient, the appearance of the residual sludge soil particles can be unified, and the reutilization of the residual sludge soil particles is facilitated.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
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