CN111593641A - Plant mixing treatment method and equipment for solidified soil - Google Patents
Plant mixing treatment method and equipment for solidified soil Download PDFInfo
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- CN111593641A CN111593641A CN202010169132.2A CN202010169132A CN111593641A CN 111593641 A CN111593641 A CN 111593641A CN 202010169132 A CN202010169132 A CN 202010169132A CN 111593641 A CN111593641 A CN 111593641A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C21/00—Apparatus or processes for surface soil stabilisation for road building or like purposes, e.g. mixing local aggregate with binder
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Abstract
The invention relates to a solidified soil mixing method and equipment in highway construction, in particular to a solidified soil plant mixing treatment method and equipment, which are characterized in that raw soil is stored in a feeding hopper, the raw soil is conveyed to a crusher through a first conveying belt after being fed in the feeding hopper, and simultaneously a lime powder bin conveys lime powder to the first conveying belt through a first spiral conveyor, so that the lime powder covers the raw soil, and the lime powder and the raw soil are conveyed to the crusher together; the crusher primarily crushes and mixes the mixture of the raw soil and the lime powder, and the crusher feeds the mixed sandy soil of the raw soil and the lime powder onto a second conveyor belt through a distributor; the second conveying belt conveys the mixed sandy soil to a soil-enclosing field for soil-enclosing treatment for more than 48 hours to enable the original soil to be desertified; when the transport vechicle carried sand and soil to the feeding hopper in carry out the unloading, more even and smooth and easy to the sand and soil is more broken when broken handle.
Description
Technical Field
The invention relates to a solidified soil mixing method and equipment in highway construction, in particular to a solidified soil plant mixing treatment method and equipment.
Background
Along with the continuous progress of large-scale construction and maintenance of roads and urban roads in China, natural sand and stone resources are increasingly in short supply and exhausted, the environmental protection requirements of various places are continuously improved, and the production of machine-made sand is strictly limited, so that the construction materials face the dilemma of resource shortage. The shortage of raw materials causes the price of concrete products to rise, further increases the construction cost, and further compresses the construction profit. The dilemma of breaking the basic material is a major subject faced by the building industry in China by replacing natural materials with artificial synthetic materials, and the adoption of the solidified soil technology is a good way for solving the problems at present. The solidified soil has some problems in the preparation process. The main raw material of the solidified soil is soil or ash soil (the ash soil refers to a product obtained by depositing and filter-pressing waste muddy water), the soil or the ash soil is required to be mixed with a small amount of cement and a certain amount of soil curing agent is added in the preparation process, so that when the soil or the ash soil is fed, due to the high viscosity of the soil or the ash soil, the soil cannot be fed in a feeding hopper, the feeding hopper is blocked, and normal feeding can be influenced; and because earth unloading is inhomogeneous when the unloading, can lead to the hopper to the transport volume of earth inhomogeneous, it is many times less, thereby can not accurately weigh the weight of earth, and make the ratio when follow-up earth adds curing agent and cement can the error, and because the viscidity of earth can be the caking form, current breaker is general to earth crushing effect moreover, can make the soil block that the diameter is greater than 50mm mix into former soil material, will influence the quality of solidified soil finally.
Disclosure of Invention
Aiming at the problems, the invention discloses a method and equipment for treating solidified soil in a plant mixing manner, which are suitable for Beijing areas.
The specific technical scheme is as follows:
a method for treating solidified soil in a plant mixing manner comprises the following steps:
firstly, storing raw soil in a feeding hopper, conveying the raw soil to a crusher through a first conveying belt after the raw soil is fed in the feeding hopper, and simultaneously conveying lime powder to the first conveying belt through a first screw conveyor by a lime powder bin to cover the lime powder on the raw soil, so that the lime powder and the raw soil are conveyed to the crusher together;
secondly, performing primary crushing treatment on the mixture of the raw soil and the lime powder by using a crusher, mixing, and then discharging the mixed sandy soil of the raw soil and the lime powder onto a second conveyor belt by using a distributor;
step three, the mixed sandy soil is conveyed to a soil enclosing field by a second conveying belt to be subjected to soil enclosing treatment for more than 48 hours, so that the original soil is desertified;
transporting the sandy soil subjected to the soil smoldering treatment to a feeding hopper again through a transport vehicle, after the sandy soil is discharged through the feeding hopper, transporting the sandy soil to a crusher through a first conveying belt, crushing the sandy soil through the crusher, and then discharging the sandy soil to a third conveying belt through a distributor;
step five, conveying the cement powder on a third conveying belt to continuous stirring equipment, conveying the cement powder to a powder hopper at the upper end of the continuous stirring equipment through a second spiral conveyor through a cement powder bin, discharging the cement to the continuous stirring equipment through the powder hopper, spraying a soil curing agent to the continuous stirring equipment, stirring for 10 seconds through the continuous stirring equipment, and discharging;
and step six, the continuous stirring equipment feeds the stirred and mixed solidified soil finished product material onto a fourth conveying belt, and the solidified soil finished product material is conveyed onto a transport vehicle through the fourth conveying belt to finish discharging.
Further, in the fifth step, the soil stabilizer is a CGJ-1 type soil stabilizer.
A solidified soil mixing plant treatment device comprises a feeder, a first conveying belt, a lime powder bin, a crusher, a second conveying belt, a third conveying belt, a continuous stirring device, a material distribution bin, a cement powder bin and a fourth conveying belt, wherein the first conveying belt is arranged at the bottom of the feeder, the lime powder bin is arranged on one side of the first conveying belt, a first spiral conveyor is arranged on one side of the lime powder bin, a discharge port of the first spiral conveyor is positioned above the first conveying belt, the other end of the first conveying belt extends to a feed port of the crusher, a material distributor is arranged at the discharge port of the crusher, the second conveying belt is arranged below one discharge port of the material distributor, the other end of the second conveying belt extends to a soil field, the third conveying belt is arranged below the other discharge port of the material distributor, and the other end of the third conveying belt extends to the feed port of the continuous stirring device, the continuous stirring equipment top is equipped with the powder fill, the discharge gate of powder fill and continuous stirring equipment's feed inlet intercommunication, the cement powder storehouse sets up in one side of continuous stirring equipment, and one side in cement powder storehouse is equipped with second screw conveyer, second screw conveyer's discharge gate is located the top of powder fill, fourth conveyer belt one end sets up in continuous stirring equipment's discharge gate department, and the fourth conveyer belt carries the finished product material that has stirred to the transport vechicle on.
Further, the feeder comprises a fixed frame, a feeding hopper and a conveying belt are arranged on the fixed frame, the conveying belt is arranged at the bottom of the feeding hopper, and one end of the conveying belt is connected with a conveying motor; the feeding hopper is characterized in that through openings are symmetrically formed in the side walls of the two sides of the lower end of the feeding hopper, the width of each through opening is slightly smaller than that of the feeding hopper, a hinge is mounted on the inner wall of the feeding hopper, which is located at the upper end of each through opening, the other end of the hinge is connected with a vibrating plate, the vibrating plate moves around the upper end of each through opening through the hinge, the size of each vibrating plate is larger than that of each through opening, so that the vibrating plates cover the through openings, mounting frames are fixedly arranged on the side walls, which are located at the outer sides of the through holes, of the vibrating plates, vibrating motors are fixedly arranged on the mounting frames, so that the vibrating motors drive the vibrating plates to swing, a material baffle plate is horizontally arranged on the inner wall, which is located at the upper end of, the lower end of the striker plate is located above the hinge and covers the hinge.
Further, the shape of the through opening is an inverted trapezoid structure, and the shape of the vibrating plate is the same as the shape of the through opening.
Further, the mounting frame is fixed on the vibration plate in a welding mode.
Further, the striker plate passes through bolt and nut to be fixed on the inner wall of hopper, and the striker plate sets up for the slope downwards.
Further, the width of the material baffle plate is larger than that of the through hole.
Furthermore, the number of the hinges at the upper end of each through opening is not less than two.
The invention has the beneficial effects that:
(1) the invention adopts two processes to treat the original soil, firstly a small amount of lime powder is added into the original soil, the lime powder is primarily mixed into sandy soil, then the sandy soil is conveyed to a soil-enclosing place to be subjected to soil-enclosing treatment for more than 48 hours, so that the original soil is desertified, and when a transport vehicle transports the sandy soil to a feeding hopper for blanking, the sandy soil can be more uniform and smooth, the feeding hopper can accurately weigh the sandy soil, and the sandy soil is easier to break during subsequent breaking treatment, so that the use standard can be reached, and the quality of solidified soil is effectively improved.
(2) According to the feeding hopper, the through holes are formed in the side walls of the two sides of the feeding hopper, the vibrating plates are hinged to the through holes, the vibrating motor is installed on the outer sides of the vibrating plates, the vibrating motor drives the vibrating plates to swing around the hinges in a small amplitude, the vibrating plates push and vibrate soil or ash soil in the feeding hopper, accordingly, the ash and the soil can be smoothly fed, and the problem that the soil and the ash soil are difficult to feed is effectively solved.
(3) According to the invention, the material baffle plate is arranged on the inner wall of the feeding hopper, which is positioned at the upper end of the vibrating plate, and the hinge is covered by the material baffle plate, so that dust can be prevented from being adhered to the hinge, the normal movement of the vibrating plate is influenced, and the vibrating effect is effectively ensured.
Drawings
Fig. 1 is a schematic structural view of a mixing plant for a method for treating solidified soil in a plant mixing manner according to the present invention.
Fig. 2 is a top view of a mixing station for a process for plantmix treatment of solidified soil according to the present invention.
Fig. 3 is a schematic view of the direction a-a in fig. 2.
Fig. 4 is a schematic view of the direction B-B in fig. 2.
Fig. 5 is a schematic structural view of a solidified soil plant-mixing processing apparatus according to the present invention.
Fig. 6 is a side view of a solidified soil plantmix processing apparatus of the present invention.
Fig. 7 is a side sectional view of a solidified soil plantmix processing apparatus of the present invention.
FIG. 8 is a summary table of the confined soil unconfined compressive strength results of a process for plantmix treatment of the present invention.
Description of the reference numerals
The device comprises a feeder 1, a fixed frame 11, a hopper 12, a through opening 121, a hinge 122, a vibrating plate 123, a mounting frame 124, a vibrating motor 125, a striker plate 126, a conveying belt 13, a conveying motor 14, a first conveying belt 2, a lime powder bin 3, a first screw conveyor 31, a crusher 4, a distributor 41, a second conveying belt 5, a soil enclosing place 6, a third conveying belt 7, a continuous stirring device 8, a powder hopper 81, a cement powder bin 9, a first screw conveyor 91 and a fourth conveying belt 10.
Detailed Description
In order to make the technical scheme of the invention clearer and clearer, the invention is further described with reference to the accompanying drawings, and any scheme obtained by carrying out equivalent replacement and conventional reasoning on the technical characteristics of the technical scheme of the invention falls into the protection scope of the invention. The fixing and the arrangement of the fixing and the connection are all general connection modes in the mechanical field, and the fixing and the connection can be performed by welding, bolt and nut connection and screw connection.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
The solidified soil comprises the following components in percentage by mass: 4 to 6 percent of cement; 3% -6% of lime powder; 0.02 to 0.025 percent of soil stabilizer; the balance being original soil. (aiming at different soil qualities and the compression resistance requirement of the finally solidified soil, the mass percentages of all the components are slightly changed). in the embodiment, the adopted lime powder accounts for 6 percent of the solidified soil, the cement accounts for 4 percent of the solidified soil, and the soil solidifying agent accounts for 0.02 percent of the solidified soil. The balance being original soil.
As shown in fig. 1 to 3, a method for treating a solidified soil in a plant mix, includes the steps of:
firstly, storing raw soil in a feeding hopper through a transport vehicle, after the raw soil is fed in the feeding hopper, transporting the raw soil to the crusher through a first conveying belt, meanwhile, conveying lime powder to the first conveying belt through a first screw conveyor by a lime powder bin, and covering the lime powder on the raw soil, so that the lime powder and the raw soil are conveyed to the crusher together.
And step two, after the mixture of the raw soil and the lime powder is crushed and mixed by the crusher, the crusher feeds the mixed sandy soil of the raw soil and the lime powder onto a second conveyor belt through a distributor.
And step three, conveying the mixed sandy soil to a soil enclosing field by using a second conveying belt for enclosing treatment for more than 48 hours so as to desertify the original soil.
And step four, transporting the sandy soil subjected to the soil smoldering treatment to a feeding hopper again through a transport vehicle for unloading, after the sandy soil is discharged through the feeding hopper, transporting the sandy soil to a crusher through a first conveying belt, and after the crusher crushes the sandy soil, discharging the sandy soil to a third conveying belt through a distributor.
And fifthly, conveying the sandy soil to continuous stirring equipment by a third conveying belt, conveying the cement to a powder hopper at the upper end of the continuous stirring equipment by a cement powder bin through a second spiral conveyor, discharging the cement to the continuous stirring equipment through the powder hopper, spraying a soil curing agent to the continuous stirring equipment, stirring for 7-9 seconds by the continuous stirring equipment, and discharging.
And step six, the continuous stirring equipment feeds the stirred and mixed solidified soil finished product material onto a fourth conveying belt, and the solidified soil finished product material is conveyed onto a transport vehicle through the fourth conveying belt to finish discharging.
Has the advantages that: the invention adopts two processes to treat the original soil, firstly a small amount of lime powder is added into the original soil, the lime powder is primarily mixed into sandy soil, then the sandy soil is conveyed to a soil-enclosing field to be subjected to soil-enclosing treatment for 72 hours, so that the original soil is desertified, and when a transport vehicle transports the sandy soil to a feeding hopper for blanking, the sandy soil can be more uniform and smooth, the feeding hopper can accurately weigh the sandy soil, and the sandy soil is easier to break during subsequent breaking treatment, so that the use standard can be reached, and the quality of solidified soil is effectively improved.
As shown in fig. 5-7, a solidified soil plant mixing treatment device comprises a feeder, a first conveyer belt, a lime powder bin, a crusher, a second conveyer belt, a third conveyer belt, a continuous stirring device, a material separating bin, a cement powder bin and a fourth conveyer belt, wherein the first conveyer belt is arranged at the bottom of the feeder, the lime powder bin is arranged on one side of the first conveyer belt, a first screw conveyer is arranged on one side of the lime powder bin, a discharge port of the first screw conveyer is positioned above the first conveyer belt, the other end of the first conveyer belt extends to a feed port of the crusher, a material separator is arranged at a discharge port of the crusher, the second conveyer belt is arranged below one discharge port of the material separator, the other end of the second conveyer belt extends to a soil-stifled field, and the third conveyer belt is arranged below the other discharge port of the material separator, the other end of third conveyer belt extends to connect agitated vessel's feed inlet department, the agitated vessel top is equipped with the powder fill in succession, the discharge gate of powder fill and agitated vessel's feed inlet intercommunication in succession, the setting of cement powder storehouse is in one side of agitated vessel in succession, and one side in cement powder storehouse is equipped with second screw conveyer, second screw conveyer's discharge gate is located the top of powder fill, fourth conveyer belt one end sets up in agitated vessel's discharge gate department in succession, and the fourth conveyer belt carries the finished product material that has stirred to the transport vechicle on.
The feeding machine in the embodiment comprises a fixed frame, wherein a feeding hopper and a conveying belt are arranged on the fixed frame, the conveying belt is arranged at the bottom of the feeding hopper, and one end of the conveying belt is connected with a conveying motor; openings are symmetrically formed in the side walls of the two sides of the lower end of the feeding hopper, the shape of each opening is of an inverted trapezoidal structure, the width size of each opening is slightly smaller than that of the feeding hopper, two hinges are mounted on the inner wall of the feeding hopper, which is located at the upper end of each opening, the other ends of the two hinges are connected with a vibration plate, the shape of each vibration plate is the same as that of each opening, each vibration plate moves around the upper end of each opening through the hinges, the size of each vibration plate is larger than that of each opening, each vibration plate covers the corresponding opening, mounting frames are arranged on the side walls, which are located outside the through holes, of each vibration plate in a welding mode, each mounting frame is fixedly provided with a vibration motor, each vibration motor drives each vibration plate to swing around the upper end of each opening in a small-amplitude, the striker plate passes through bolt and nut to be fixed on the inner wall of hopper, and the striker plate sets up for the slope downwards, the striker plate is rectangular shape structure, and the cross-section of striker plate is Z type structure, the width of striker plate is greater than the width of through-hole, the upper end of striker plate and the inner wall fixed connection of hopper, and the lower extreme of striker plate is located the top of hinge to cover the hinge, thereby prevent the adhesion of lime soil on the hinge, and influence the normal activity of vibration board.
The working principle is as follows: when the feeding hopper works, the vibrating motor drives the vibrating plate to swing around the hinge in a small amplitude under the action of vibration, so that the vibrating plate pushes and vibrates soil or dirt in the feeding hopper, and the soil or the dirt is smoothly fed.
Has the advantages that: according to the feeding hopper, the through holes are formed in the side walls of the two sides of the feeding hopper, the vibrating plates are hinged to the through holes, the vibrating motor is installed on the outer sides of the vibrating plates, the vibrating motor drives the vibrating plates to swing around the hinges in a small amplitude, the vibrating plates push and vibrate soil or ash soil in the feeding hopper, accordingly, the ash and the soil can be smoothly fed, and the problem that the soil and the ash soil are difficult to feed is effectively solved.
According to the invention, the material baffle plate is arranged on the inner wall of the feeding hopper, which is positioned at the upper end of the vibrating plate, and the hinge is covered by the material baffle plate, so that dust can be prevented from being adhered to the hinge, the normal movement of the vibrating plate is influenced, and the vibrating effect is effectively ensured.
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 also 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.
Claims (9)
1. A method for treating solidified soil in a plant mixing manner comprises the following steps:
firstly, storing raw soil in a feeding hopper, conveying the raw soil to a crusher through a first conveying belt after the raw soil is fed in the feeding hopper, and simultaneously conveying lime powder to the first conveying belt through a first screw conveyor by a lime powder bin to cover the lime powder on the raw soil and conveying the lime powder and the raw soil to the crusher together;
secondly, performing primary crushing treatment on the mixture of the raw soil and the lime powder by using a crusher, mixing, and then discharging the mixed sandy soil of the raw soil and the lime powder onto a second conveyor belt by using a distributor;
step three, the mixed sandy soil is conveyed to a soil enclosing field by a second conveying belt to be subjected to soil enclosing treatment for more than 48 hours, so that the original soil is desertified;
transporting the sandy soil subjected to the soil smoldering treatment to a feeding hopper again through a transport vehicle, after the sandy soil is discharged through the feeding hopper, transporting the sandy soil to a crusher through a first conveying belt, crushing the sandy soil through the crusher, and then discharging the sandy soil to a third conveying belt through a distributor;
step five, conveying the cement powder on a third conveying belt to continuous stirring equipment, conveying the cement powder to a powder hopper at the upper end of the continuous stirring equipment through a second spiral conveyor through a cement powder bin, discharging the cement to the continuous stirring equipment through the powder hopper, spraying a soil curing agent to the continuous stirring equipment, stirring for 10 seconds through the continuous stirring equipment, and discharging;
and step six, the continuous stirring equipment feeds the stirred and mixed solidified soil finished product material onto a fourth conveying belt, and the solidified soil finished product material is conveyed onto a transport vehicle through the fourth conveying belt to finish discharging.
2. The cured soil plantmix process of claim 1, wherein in step five, the soil conditioner is a CGJ-1 type soil conditioner.
3. A solidified soil mixing treatment device comprises a feeder, a first conveying belt, a lime powder bin, a crusher, a second conveying belt, a third conveying belt, a continuous stirring device, a material distribution bin, a cement powder bin and a fourth conveying belt, wherein the first conveying belt is arranged at the bottom of the feeder, the lime powder bin is arranged on one side of the first conveying belt, a first spiral conveyor is arranged on one side of the lime powder bin, a discharge port of the first spiral conveyor is positioned above the first conveying belt, the other end of the first conveying belt extends to a feed port of the crusher, the solidified soil mixing treatment device is characterized in that a material distributor is arranged at a discharge port of the crusher, the second conveying belt is arranged below one discharge port of the material distributor, the other end of the second conveying belt extends to a soil enclosing field, the third conveying belt is arranged below the other discharge port of the material distributor, the other end of third conveyer belt extends to connect agitated vessel's feed inlet department, the agitated vessel top is equipped with the powder fill in succession, the discharge gate of powder fill and agitated vessel's feed inlet intercommunication in succession, the setting of cement powder storehouse is in one side of agitated vessel in succession, and one side in cement powder storehouse is equipped with second screw conveyer, second screw conveyer's discharge gate is located the top of powder fill, fourth conveyer belt one end sets up in agitated vessel's discharge gate department in succession, and the fourth conveyer belt carries the finished product material that has stirred to the transport vechicle on.
4. The solidified soil plant mixing treatment equipment as claimed in claim 4, wherein the feeding machine comprises a fixed frame, a feeding hopper and a conveying belt are arranged on the fixed frame, the conveying belt is arranged at the bottom of the feeding hopper, and one end of the conveying belt is connected with a conveying motor; the opening has been seted up to the symmetry on the both sides lateral wall of hopper lower extreme, the width size of opening slightly is less than the width size of hopper, is located install the hinge on the hopper inner wall of opening upper end, the other end of hinge is connected with the vibration board, and the size of vibration board is greater than the size of opening, and the vibration board covers on the opening, the vibration board is located all fixed mounting bracket that is provided with on the lateral wall in the through-hole outside, all fixed vibrating motor that is provided with on the mounting bracket, the hopper is located the inner wall of vibration board upper end is improved level and is provided with the striker plate, and the cross-section of striker plate is Z type structure, the upper end of striker plate and the inner wall fixed connection of hopper, and the lower extreme of striker plate is located.
5. The curing soil mix plant processing apparatus of claim 4, wherein the shape of the port is an inverted trapezoid, and the shape of the vibrating plate is the same as the shape of the port.
6. The curing soil mix processing apparatus of claim 4, wherein the mounting bracket is secured to the vibrating plate by welding.
7. The solidified soil plant mixing processing equipment as claimed in claim 4, wherein the striker plate is fixed on the inner wall of the feeding hopper by bolts and nuts, and the striker plate is arranged obliquely downward.
8. The cured soil plantmix processing apparatus of claim 4, wherein the striker plate has a width greater than a width of the through hole.
9. The curing soil mix plant treatment apparatus of claim 4, wherein the number of hinges at the upper end of each port is no less than two.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010169132.2A CN111593641A (en) | 2020-03-12 | 2020-03-12 | Plant mixing treatment method and equipment for solidified soil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010169132.2A CN111593641A (en) | 2020-03-12 | 2020-03-12 | Plant mixing treatment method and equipment for solidified soil |
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| CN111593641A true CN111593641A (en) | 2020-08-28 |
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| CN115534113A (en) * | 2022-09-15 | 2022-12-30 | 无锡恒元建设工程有限公司 | Production method of finished product lime soil |
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| CN113005864A (en) * | 2021-02-24 | 2021-06-22 | 北京市政建设集团有限责任公司 | High-efficiency environment-friendly multi-mixing-mode solidified soil mobile mixing equipment |
| CN114351728A (en) * | 2021-12-21 | 2022-04-15 | 中建八局第二建设有限公司 | Solidified soil stirring field and construction method for backfilling solidified soil in narrow high backfilling area |
| CN115534113A (en) * | 2022-09-15 | 2022-12-30 | 无锡恒元建设工程有限公司 | Production method of finished product lime soil |
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