CN116003081A - Preparation process of high-water-permeability concrete - Google Patents
Preparation process of high-water-permeability concrete Download PDFInfo
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- CN116003081A CN116003081A CN202211738374.4A CN202211738374A CN116003081A CN 116003081 A CN116003081 A CN 116003081A CN 202211738374 A CN202211738374 A CN 202211738374A CN 116003081 A CN116003081 A CN 116003081A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention belongs to the technical field of concrete, in particular to a high-water-permeability concrete formula and a preparation process, wherein a pretreatment device comprises a washing tank body, a first motor, a first spiral conveying shaft, a turnover box, a drying shell, a second motor, a second spiral conveying shaft and a heating coil; adding the quartz sand after smashing into the washing jar body along with clear water, starting a motor, driving a screw conveying shaft to rotate, stirring and pushing quartz sand and clear water, flushing dust impurities on the surface of the quartz sand by the stirred clear water, driving a screw conveying shaft to rotate by a motor, conveying pure quartz sand in a turnover box obliquely upwards along a drying shell, heating the inside of the drying shell by a heating coil, improving the temperature in the drying shell, drying the conveyed quartz sand, reducing the production cost of high-permeability concrete and improving the competitiveness of the high-permeability concrete.
Description
Technical Field
The invention belongs to the technical field of concrete, and particularly relates to a preparation process of high-water-permeability concrete.
Background
The high permeable concrete is formed by mixing cement, water and permeable concrete reinforcing agent with high-quality aggregate with the same particle size or gap grading, and is a mixed material with a certain void ratio; with the increasing importance of human beings for improving ecological environment and protecting home, high-permeability concrete is also getting more and more application. The high permeable concrete has good drainage, anti-slip, sound absorption, noise reduction and water seepage effects, so that the high permeable concrete is widely applied to pavement.
The Chinese patent with publication number CN109467363B discloses a high-strength water-permeable concrete, which belongs to the technical field of concrete, and the technical scheme is that the high-strength water-permeable concrete comprises the following components: cement, coarse aggregate, reinforcing fiber, water reducer and water; the reinforcing fiber comprises polyvinyl alcohol fiber, lignin fiber and modified bamboo fiber in a weight ratio of 2:1:1. The bamboo fiber is prepared into the modified bamboo fiber after pretreatment and chemical modification, and the modified bamboo fiber is matched with the polyvinyl alcohol fiber and the lignin fiber, so that the bonding capacity of the fiber, the aggregate and the cement can be enhanced, the compressive strength and the wear resistance of the concrete can be improved, the service life of the concrete can be prolonged, and the modified bamboo fiber is suitable for road concrete; and lignin fiber and bamboo fiber belong to plant fiber, and the cross section area of the fiber has a plurality of pores, so that the water permeability of the concrete can be improved while the compressive strength of the concrete is improved.
When the high permeable concrete is prepared, quartz sand particles are required to be washed and dried, and when the high permeable concrete is prepared, the existing quartz sand washing equipment and drying equipment are large in size, high in power consumption and low in yield of small and medium enterprises, and the existing washing equipment and drying equipment are used, so that the cost for preparing the high permeable concrete is increased, and the competitiveness of the high permeable concrete is reduced.
Therefore, the invention provides a high-water-permeability concrete formula and a preparation process thereof.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to a high-water-permeability concrete formula which is composed of the following raw materials in parts by weight:
cement 20-35
100-150 parts of quartz sand
10-13 parts of water
3-5 parts of permeable concrete reinforcing agent.
The permeable concrete reinforcing agent consists of the following raw materials in parts by weight:
8-10 parts of water reducer
Brown corundum micropowder 12-15
1-3 parts of silica fume
Latex powder 2-6
1-5 parts of calcium oxide.
The preparation process of the high-permeability concrete formula is suitable for the high-permeability concrete, and comprises the following steps of:
s1: putting quartz stone raw materials into a pulverizer, and pulverizing quartz stone into fine particles;
s2: the method comprises the steps of putting fine granular quartz sand into a pretreatment device, rotating through a first spiral conveying shaft, stirring and pushing the quartz sand and clear water, and flushing dust impurities on the surface of the quartz sand by the stirred clear water, so that the quartz sand and the water are fully mixed and cleaned, the purity degree of the quartz sand is improved, the quartz sand is washed, dust and soil in the quartz sand are removed, then, the pure quartz sand is obliquely and slowly conveyed upwards through a second spiral conveying shaft, water mixed in the quartz sand falls downwards, meanwhile, a heating coil is heated to improve the temperature, fan blades rotate to form hot air, drying of the wet quartz sand is accelerated, the drying speed of the quartz sand is further improved, and the clean quartz sand is dried for standby;
s3: putting the dry and pure quartz sand, cement, permeable concrete reinforcing agent and water into a stirrer according to a proportion, uniformly stirring to prepare concrete slurry, paving the concrete slurry layer by layer on a construction pavement, tamping by using a vibrating tamper, and polishing and compacting the concrete pavement by using a polishing machine;
s4: and (3) paving a film on the concrete pavement for maintenance, and spraying clear water every day until the concrete pavement is solidified and dried.
Preferably, the pretreatment device in the step S2 comprises a washing tank body, a first motor, a first spiral conveying shaft, a turnover box, a drying shell, a second motor, a second spiral conveying shaft and a heating coil; the automatic water washing device comprises a water washing tank body, and is characterized in that a feed port is arranged at the top of one end of the water washing tank body, a first motor is mounted at the feed port bolt of the water washing tank body, a rotating shaft of the first motor rotates to penetrate through the outer wall of the water washing tank body, a first screw conveying shaft is rotatably mounted in the water washing tank body, one end of the first screw conveying shaft is fixedly connected with the rotating shaft of the first motor, a feed opening is formed in the bottom of the other end of the water washing tank body, a turnover box is arranged at the bottom of one end of the water washing tank body, the turnover box is positioned at the bottom of the feed opening, a drying shell is arranged on the side face of the turnover box, the bottom of the drying shell is inserted into the turnover box, a second motor is fixedly connected to the top of the drying shell, a second screw conveying shaft is rotatably mounted in the drying shell, a plurality of heating coils are fixedly connected to the inner top side of the drying shell, the inner rings of the heating coils are sleeved on the outer ring of the rotating shaft of the second screw conveying shaft, a feed pipe is arranged in the middle of the drying shell, and the feed pipe is positioned at the bottom of the heating coil, and the bottom of the second screw conveying shaft is positioned at the bottom of the paddle; during the use, with the quartz sand after smashing adding the washing jar internal with the clear water, start motor, drive screw conveyer axle rotation, stir quartz sand and clear water and impel, the clear water that stirs washes the dust impurity on quartz sand surface, the quartz sand after the sanitization carries into the turnover incasement, unnecessary washing falls the bottom of turnover case under water and discharges, motor drive screw conveyer axle rotation No. two, carry pure quartz sand slant in the turnover case upward along dry shell, the water that is mingled with in the quartz sand falls down along dry shell, simultaneously, heating coil heats dry shell's inside, improve the temperature in the dry shell, dry the quartz sand of carrying, high water permeability concrete's manufacturing cost has been reduced, and then high water permeability concrete's competitiveness has been improved.
Preferably, a supporting frame is arranged on the bottom surface of the washing tank body, a sewage tank is arranged on the top surface of the supporting frame, a sewage hole is arranged on the bottom surface of the washing tank body, the sewage hole is communicated with the sewage tank, a plurality of through grooves are arranged on the blade of the first screw conveying shaft, a baffle ring is fixedly connected with the inner ring at the tail part of the washing tank body, the cross section of the baffle ring is triangular, an opening of the baffle ring is close to the middle part of the washing tank body, and the baffle ring is positioned on one side of the blanking opening close to the middle part of the washing tank body; when the quartz sand and clear water are pushed by the first spiral conveying shaft to stir and advance, dust on the surface of the quartz sand is dissolved into water by the clear water, and sewage flows into the sewage tank through the sewage hole and is discharged; the through groove is offered to the paddle of screw conveying axle, when the quartz sand of propelling movement, and sewage passes through the through groove, has reduced the volume that sewage was carried by screw conveying axle, and the baffle ring that sets up simultaneously blocks in the sewage flows into the turnover case, has further reduced the volume that sewage accompanies quartz sand to get into the turnover case to improved the production quality of quartz sand, improved the production quality of high water permeability concrete then.
Preferably, the outer ring of the rotating shaft of the first spiral conveying shaft is fixedly connected with a plurality of dispersing seats, one surface of the dispersing seats, which is close to the inner wall of the washing tank body, is provided with a plurality of sliding holes, a dispersing rod is arranged in the sliding holes in a sliding manner, and the outer ring of the dispersing rod is in sliding fit with the inner wall of the washing tank body; during the use, when screw conveying axle rotates, drive the dispersion seat and rotate, when the dispersion seat rotated the bottom, the dispersion pole received self gravity's effect, along the slide hole slip for the end of dispersion pole is along the inner wall slip of washing jar body with water, further scattering quartz sand, makes quartz sand and water intensive mixing wash, thereby has further improved quartz sand's purity degree.
Preferably, a plurality of vibration shrapnel are fixedly connected in the sewage hole, an elastic sheet is fixedly connected between the adjacent vibration shrapnels, and the vibration shrapnel at the top is in sliding fit with the end head of the dispersing rod; when the sewage treatment device is used, when the end head of the dispersion rod slides along the bottom of the inner wall of the washing tank body, the dispersion rod bumps and toggles the vibration elastic sheet, so that the vibration elastic sheet vibrates in the sewage hole, the probability that the sewage hole is blocked by sludge in sewage is reduced, and the sewage discharge speed is improved.
Preferably, the top end of the drying shell is rotatably provided with a transmission shaft, the transmission shaft penetrates through the top wall of the drying shell in a rotating mode, the top end of the transmission shaft is in belt transmission connection with a rotating shaft of a second motor, the middle outer ring of the transmission shaft is fixedly connected with a sun gear, the inner wall of the top end of the drying shell is rotatably provided with a gear ring, the inner top wall of the drying shell is rotatably provided with a planet gear carrier, the planet gear carrier is rotatably provided with a plurality of planet gears, the planet gears are positioned between the sun gear and the gear ring, the planet gears are respectively meshed with the sun gear and the gear ring, one surface of the gear ring, which is close to the middle of the drying shell, is fixedly connected with a connecting ring, the connecting ring is rotatably connected with the inner wall of the drying shell, the bottom end of the connecting ring is fixedly connected with a plurality of arc plates, the middle of the arc plates is fixedly connected with the top end of the rotating shaft of the second screw conveying shaft, the bottom end of the transmission shaft is fixedly connected with fan blades, the fan blades are positioned in the connecting ring, and the top of the drying shell is provided with a plurality of ventilation holes; when the quartz sand drying device is used, the second motor drives the transmission shaft to rotate through belt transmission, the sun gear is driven to rotate, the gear ring is driven to rotate through planetary gear transmission, the rotating speed of the gear ring is reduced, the connecting ring is driven to rotate slowly, the second spiral conveying shaft is driven to rotate slowly, pure quartz sand in the turnover box is obliquely conveyed upwards along the drying shell slowly, meanwhile, the transmission shaft drives the fan blades to rotate, high-speed flowing wind is generated, the high-speed flowing wind passes through the heating coil to form hot wind, the hot wind passes through the second spiral conveying shaft, drying of moist quartz sand is accelerated, and accordingly the drying speed of the quartz sand is further improved, and the preparation speed of the quartz sand is further improved.
Preferably, a conical plate is fixedly connected in the turnover box, the conical tip of the conical plate is positioned at the bottom, the conical plate is provided with a plurality of water filtering holes, the bottom end of the drying shell is positioned in the middle of the conical plate, and the bottom of the turnover box is provided with a water outlet; when the quartz sand washing machine is used, wet quartz sand enters the turnover box from the water washing tank body and falls into the conical plate, and water mixed in the quartz sand flows to the bottom of the turnover box from the water filtering holes formed in the conical plate, so that the water content of the quartz sand after water washing is reduced, and the drying speed of the quartz sand is further improved.
The beneficial effects of the invention are as follows:
1. according to the formula and the preparation process of the high-water-permeability concrete, a first motor, a first spiral conveying shaft, a dispersing rod and a vibration spring plate are arranged; the first spiral conveying shaft is driven to rotate by the first motor, quartz sand and clean water are stirred and propelled, dust and impurities on the surface of the quartz sand are washed by the stirred clean water, the dispersing rod slides along the sliding hole under the action of gravity, the end of the dispersing rod slides along the inner wall of the water washing tank body, the quartz sand is further scattered, the quartz sand and the water are fully mixed and washed, and the purity degree of the quartz sand is improved; meanwhile, the dispersing rod is impacted to toggle the vibration shrapnel, so that the vibration shrapnel vibrates in the sewage hole, the probability of blocking the sewage hole by sludge in the sewage is reduced, and the sewage discharge speed is improved.
2. According to the formula and the preparation process of the high-water-permeability concrete, the second motor, the second spiral conveying shaft, the heating coil, the transmission shaft, the sun gear, the gear ring, the planetary gear and the fan blade are adopted; the second motor drives the transmission shaft to rotate, through sun gear, planetary gear and ring gear and meshing transmission, the pure quartz sand in the turnover box is slowly conveyed along the drying shell in the slant of drive second screw conveying shaft, water mixed with in the quartz sand flows down, simultaneously, the heating coil heats the inside of the drying shell, the temperature in the drying shell is improved, the transmission shaft drives the fan blade to rotate, high-speed flowing wind passes through the heating coil to form hot air, drying of moist quartz sand is accelerated, drying speed of quartz sand is further improved, cost of purchasing pure quartz sand by enterprises is reduced, production cost of high-permeability concrete is reduced, and competitiveness of high-permeability concrete is improved.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a perspective view of a first embodiment of the present invention;
FIG. 2 is a front view of a first embodiment of the invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is an enlarged view of a portion of FIG. 2 at B;
FIG. 5 is an enlarged view of a portion of FIG. 2 at C;
FIG. 6 is a partial enlarged view of FIG. 3 at D;
FIG. 7 is a partial cross-sectional view of a drying enclosure according to a second embodiment of the invention;
FIG. 8 is a flow chart of a preparation method of the present invention.
In the figure: 1. washing the tank body with water; 2. a motor I; 3. a first screw conveying shaft; 4. a turnover box; 5. drying the shell; 6. a motor II; 7. a second spiral conveying shaft; 8. a heating coil; 9. a support frame; 10. a sewage tank; 11. a sewage hole; 12. a baffle ring; 13. a dispersion seat; 14. a slide hole; 15. a dispersion rod; 16. vibrating spring plates; 17. an elastic sheet; 18. a transmission shaft; 19. a sun gear; 20. a gear ring; 21. a planetary carrier; 22. a planetary gear; 23. a connecting ring; 24. an arc-shaped plate; 25. a fan blade; 26. a conical plate; 27. a partition seat; 28. a through hole; 29. and (5) through grooves.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Example 1
The high-permeability concrete formula provided by the embodiment of the invention comprises the following raw materials in parts by weight:
cement 20-35
100-150 parts of quartz sand
10-13 parts of water
3-5 parts of permeable concrete reinforcing agent.
The permeable concrete reinforcing agent consists of the following raw materials in parts by weight:
8-10 parts of water reducer
Brown corundum micropowder 12-15
1-3 parts of silica fume
Latex powder 2-6
1-5 parts of calcium oxide.
As shown in fig. 8, a preparation process of a high water permeability concrete formulation is applicable to the high water permeability concrete, and comprises the following steps:
s1: putting quartz stone raw materials into a pulverizer, and pulverizing quartz stone into fine particles;
s2: putting fine granular quartz sand into a pretreatment device, rotating through a first spiral conveying shaft 3, stirring and pushing the quartz sand and clear water, flushing dust impurities on the surface of the quartz sand by the stirred clear water, fully mixing and cleaning the quartz sand with the water, improving the purity degree of the quartz sand, washing the quartz sand, removing dust and soil in the quartz sand, afterwards, obliquely and slowly conveying the pure quartz sand upwards through a second spiral conveying shaft 7, enabling water mixed in the quartz sand to fall downwards, simultaneously, heating by a heating coil 8 to increase the temperature, enabling a fan blade 25 to rotate to form hot air, accelerating the drying of wet quartz sand, further improving the drying speed of the quartz sand, and drying the clean quartz sand for standby;
s3: putting the dry and pure quartz sand, cement, permeable concrete reinforcing agent and water into a stirrer according to a proportion, uniformly stirring to prepare concrete slurry, paving the concrete slurry layer by layer on a construction pavement, tamping by using a vibrating tamper, and polishing and compacting the concrete pavement by using a polishing machine;
s4: and (3) paving a film on the concrete pavement for maintenance, and spraying clear water every day until the concrete pavement is solidified and dried.
As shown in fig. 1 to 2, the pretreatment device in S2 includes a water tank 1, a first motor 2, a first screw conveyor shaft 3, a turnover box 4, a drying shell 5, a second motor 6, a second screw conveyor shaft 7 and a heating coil 8; the top of one end of the washing tank body 1 is provided with a feed inlet, a first motor 2 is mounted at the feed end of the washing tank body 1 through bolts, a rotating shaft of the first motor 2 rotates to penetrate through the outer wall of the washing tank body 1, a first spiral conveying shaft 3 is rotatably mounted in the washing tank body 1, one end of the first spiral conveying shaft 3 is fixedly connected with the rotating shaft of the first motor 2, a feed opening is formed in the bottom of the other end of the washing tank body 1, a turnover box 4 is arranged at the bottom of the feed opening at one end of the washing tank body 1, a drying shell 5 is arranged on the side surface of the turnover box 4, the bottom end of the drying shell 5 is inserted into the turnover box 4, a second motor 6 is fixedly connected to the top of the drying shell 5 through a belt, a plurality of heating coils 8 are fixedly connected to the rotating shaft of the second motor 6 through a belt, a plurality of heating coils 8 are fixedly connected to the inner top sides of the drying shell 5 through a plurality of belts, the inner rings of the heating coils 8 are sleeved on the bottom surfaces of the second spiral conveying shaft 7, the drying shell 5 is arranged at the bottom of the feed pipe 8, and the bottom of the drying shell is arranged at the bottom of the feed pipe 8; during the use, add the quartz sand after smashing in the washing jar body 1 with the clear water, start motor 2, drive screw conveyer shaft 3 rotation, stir quartz sand and clear water and promote, the clear water of stirring washes the dust impurity on quartz sand surface, the quartz sand after the sanitization carries and gets into turnover case 4, unnecessary washing water falls the bottom of turnover case 4 and discharges, motor 6 drives screw conveyer shaft 7 rotation No. two, carry pure quartz sand slant in the turnover case 4 along dry shell 5, the water that is mingled with in the quartz sand is downflow along dry shell 5, simultaneously, heating coil 8 heats dry shell 5's inside, improve dry shell 5 temperature, dry the quartz sand of carrying, high water permeability concrete's manufacturing cost has been reduced, high water permeability concrete's competitiveness has been improved.
As shown in fig. 2 to 3, a supporting frame 9 is arranged on the bottom surface of the washing tank body 1, a sewage tank 10 is arranged on the top surface of the supporting frame 9, a sewage hole 11 is arranged on the bottom surface of the washing tank body 1, the sewage hole 11 is communicated with the sewage tank 10, a plurality of through grooves 29 are arranged on the blades of the first screw conveying shaft 3, a baffle ring 12 is fixedly connected with the inner ring at the tail part of the washing tank body 1, the cross section of the baffle ring 12 is triangular, the opening of the baffle ring 12 is close to the middle part of the washing tank body 1, and the baffle ring 12 is positioned on one side of the blanking port close to the middle part of the washing tank body 1; when the quartz sand and clear water are stirred and advanced by the first spiral conveying shaft 3 in use, the clear water dissolves dust on the surface of the quartz sand into the water, and sewage flows into the sewage tank 10 through the sewage hole 11 and is discharged; through groove 29 that paddle of screw conveying axle 3 was seted up, when pushing quartz sand, sewage passed through groove 29, reduced the volume that sewage was carried by screw conveying axle 3, the baffle ring 12 of setting simultaneously, in blockking that sewage flows into turnover case 4, further reduced the volume that sewage accompanies quartz sand to get into turnover case 4 to improved quartz sand's production quality, improved high water permeability concrete's production quality then.
The outer ring of the rotating shaft of the first spiral conveying shaft 3 is fixedly connected with a plurality of dispersing seats 13, one surface of the dispersing seats 13 close to the inner wall of the washing tank body 1 is provided with a plurality of sliding holes 14, a dispersing rod 15 is slidably arranged in each sliding hole 14, and the outer ring of the dispersing rod 15 is slidably matched with the inner wall of the washing tank body 1; during the use, when screw conveyer axle 3 rotates, drive dispersion seat 13 and rotate, when dispersion seat 13 rotated the bottom, dispersion pole 15 received self gravity's effect, along slide hole 14 slip for dispersion pole 15's end is along the inner wall slip of washing jar body 1, further scattering quartz sand, makes quartz sand and water intensive mixing wash, thereby has further improved quartz sand's purity degree.
As shown in fig. 3 and 6, the interior of the sewage hole 11 is fixedly connected with a plurality of vibration shrapnel 16, an elastic sheet 17 is fixedly connected between adjacent vibration shrapnels 16, and the top of the vibration shrapnel 16 is in sliding fit with the end of the dispersing rod 15; when in use, when the end of the dispersion rod 15 slides along the bottom of the inner wall of the washing tank body 1, the dispersion rod 15 bumps and toggles the vibration spring piece 16, so that the vibration spring piece 16 vibrates in the sewage hole 11, the probability that the sewage hole 11 is blocked by sludge in sewage is reduced, and the sewage discharge speed is improved.
As shown in fig. 2 and fig. 4, a transmission shaft 18 is rotatably mounted at the top end of the drying shell 5, the transmission shaft 18 rotates to penetrate through the top wall of the drying shell 5, the top end of the transmission shaft 18 is in transmission connection with a rotating shaft belt of the No. two motor 6, a sun gear 19 is fixedly connected with the middle outer ring of the transmission shaft 18, a gear ring 20 is rotatably mounted on the inner wall of the top end of the drying shell 5, a planet gear carrier 21 is rotatably mounted on the inner top wall of the drying shell 5, a plurality of planet gears 22 are rotatably mounted on the planet gear carrier 21, the planet gears 22 are positioned between the sun gear 19 and the gear ring 20, the planet gears 22 are respectively meshed with the sun gear 19 and the gear ring 20, a connecting ring 23 is fixedly connected with one side of the gear ring 20 close to the middle of the drying shell 5, a plurality of arc plates 24 are fixedly connected with the inner wall of the drying shell 5, the middle of the arc plates 24 are fixedly connected with the top end of the rotating shaft of the No. two screw conveying shafts 7, bottom end fan blades 25 of the transmission shaft 18 are fixedly connected with the fan blades 25 are positioned in the connecting ring 23, and the top of the drying shell 5 is provided with a plurality of ventilation holes; when the quartz sand drying device is used, the second motor 6 is driven by a belt to drive the transmission shaft 18 to rotate, the sun gear 19 is driven to rotate, the gear ring 20 is driven to rotate through the transmission of the planetary gear 22, the rotating speed of the gear ring 20 is reduced, the connecting ring 23 is driven to slowly rotate, the second spiral conveying shaft 7 is driven to slowly rotate, pure quartz sand in the turnover box 4 is obliquely upwards conveyed along the drying shell 5 slowly, meanwhile, the transmission shaft 18 drives the fan blades 25 to rotate, high-speed flowing wind is generated, the high-speed flowing wind passes through the heating coil 8 to form hot wind, the hot wind passes through the second spiral conveying shaft 7, and the drying of wet quartz sand is accelerated, so that the drying speed of the quartz sand is further improved, and the preparation speed of the quartz sand is further improved.
As shown in fig. 2 and 5, the inside of the turnover box 4 is fixedly connected with a conical plate 26, the conical tip of the conical plate 26 is positioned at the bottom, the conical plate 26 is provided with a plurality of water filtering holes, the bottom end of the drying shell 5 is positioned at the middle part of the conical plate 26, and the bottom of the turnover box 4 is provided with a water outlet; when the quartz sand washing tank is used, wet quartz sand enters the turnover box 4 from the water washing tank body 1 and falls into the conical plate 26, water mixed in the quartz sand flows to the bottom of the turnover box 4 from the water filtering holes formed in the conical plate 26, so that the water content of the quartz sand after washing is reduced, and the drying speed of the quartz sand is further improved.
Example two
As shown in fig. 7, in comparative example one, another embodiment of the present invention is: the inside of the drying shell 5 is fixedly connected with a separation seat 27, the middle part of the separation seat 27 is in running fit with the outer ring of the rotating shaft of the second spiral conveying shaft 7, a plurality of through holes 28 are formed in the separation seat 27, the separation seat 27 is positioned between the discharging pipe and the heating coil 8, the main body of the separation seat 27 is water-absorbing rubber, and waterproof paint is sprayed on the bottom surface of the separation seat 27; when the device is used, through the separation seat 27 and the through holes 28, hot air is blown to the bottom of the drying shell 5 through the through holes 28, and meanwhile, the separation seat 27 prevents quartz sand from affecting the normal operation of the heating coil 8, the fan blades 25 and the gears upwards; the material of the water-absorbing rubber fully absorbs the water vapor entering the through hole 28, so that the water vapor is prevented from affecting the safety of the heating coil 8 upwards, and meanwhile, the contact area between the partition seat 27 and the water vapor is effectively reduced by the waterproof coating.
When in operation, the device comprises: firstly, crushed quartz sand is added into a washing tank body 1 along with clear water, a first motor 2 is started to drive a first screw conveying shaft 3 to rotate, the quartz sand and the clear water are stirred and propelled, dust on the surface of the quartz sand is dissolved into water by the clear water, sewage flows into a sewage tank 10 through a sewage hole 11 and is discharged, and sewage passes through a through groove 29, so that the amount of the sewage conveyed by the first screw conveying shaft 3 is reduced; when the first spiral conveying shaft 3 rotates, the dispersing seat 13 is driven to rotate, when the dispersing seat 13 rotates to the bottom, the dispersing rod 15 is subjected to the action of gravity and slides along the sliding hole 14, so that the end of the dispersing rod 15 slides along the inner wall of the washing tank body 1 to further scatter quartz sand, so that the quartz sand and water are fully mixed and washed, and meanwhile, when the end of the dispersing rod 15 slides along the bottom of the inner wall of the washing tank body 1, the dispersing rod 15 bumps and toggles the vibrating shrapnel 16, so that the vibrating shrapnel 16 vibrates in the sewage hole 11, the probability that sludge in sewage blocks the sewage hole 11 is reduced, the sewage discharge speed is improved, the washed quartz sand water washing tank body 1 enters the turnover box 4 and falls into the conical plate 26, and water mixed in the quartz sand flows to the bottom of the turnover box 4 from the water filtering hole formed by the conical plate 26, so that the water content of the quartz sand after washing is reduced;
then, the second motor 6 drives the transmission shaft 18 to rotate through belt transmission, drives the sun gear 19 to rotate, drives the gear ring 20 to rotate through the transmission of the planetary gear 22, reduces the rotation speed of the gear ring 20, drives the connecting ring 23 to slowly rotate, drives the second spiral conveying shaft 7 to slowly rotate, and obliquely and slowly conveys pure quartz sand in the turnover box 4 along the drying shell 5, meanwhile, the transmission shaft 18 drives the fan blades 25 to rotate, high-speed flowing wind is generated, the high-speed flowing wind passes through the heating coil 8 to form hot wind, the hot wind passes through the second spiral conveying shaft 7, drying of wet quartz sand is accelerated, the drying speed of the quartz sand is further improved, and the preparation speed of the quartz sand is improved.
The front, rear, left, right, up and down are all based on fig. 1 in the drawings of the specification, the face of the device facing the observer is defined as front, the left side of the observer is defined as left, and so on, according to the viewing angle of the person.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A preparation process of high water permeability concrete is characterized in that: the high-permeability concrete is prepared from the following raw materials in parts by weight:
cement 20-35
100-150 parts of quartz sand
10-13 parts of water
3-5 parts of permeable concrete reinforcing agent;
the permeable concrete reinforcing agent consists of the following raw materials in parts by weight:
8-10 parts of water reducer
Brown corundum micropowder 12-15
1-3 parts of silica fume
Latex powder 2-6
1-5 parts of calcium oxide;
the preparation process comprises the following steps:
s1: putting quartz stone raw materials into a pulverizer, and pulverizing quartz stone into fine particles;
s2: the fine granular quartz sand is put into a pretreatment device, the quartz sand and clear water are stirred and propelled through a first spiral conveying shaft (3), dust impurities on the surface of the quartz sand are washed by the stirred clear water, so that the quartz sand and the water are fully mixed and washed, the purity degree of the quartz sand is improved, the quartz sand is washed, dust and soil in the quartz sand are removed, then the pure quartz sand is slowly conveyed obliquely upwards through a second spiral conveying shaft (7), water mixed in the quartz sand falls downwards, meanwhile, a heating coil (8) is heated to improve the temperature, fan blades (25) are rotated to form hot air, the drying of the wet quartz sand is accelerated, the drying speed of the quartz sand is further improved, and the clean quartz sand is dried for standby;
s3: putting the dry and pure quartz sand, cement, permeable concrete reinforcing agent and water into a stirrer according to a proportion, uniformly stirring to prepare concrete slurry, paving the concrete slurry layer by layer on a construction pavement, tamping by using a vibrating tamper, and polishing and compacting the concrete pavement by using a polishing machine;
s4: paving a film on the concrete pavement for maintenance, and spraying clear water every day until the concrete pavement is solidified and dried;
the pretreatment device in the step S2 comprises a washing tank body (1), a motor I (2), a screw conveying shaft I (3), a turnover box (4), a drying shell (5), a motor II (6), a screw conveying shaft II (7) and a heating coil (8); the utility model discloses a water washing tank, which is characterized in that a feed inlet is arranged at the top of one end of the water washing tank body (1), a first motor (2) is arranged at the feed end of the water washing tank body (1) through bolts, a rotating shaft of the first motor (2) rotates to penetrate through the outer wall of the water washing tank body (1), a first spiral conveying shaft (3) is rotatably arranged in the water washing tank body (1), one end of the first spiral conveying shaft (3) is fixedly connected with the rotating shaft of the first motor (2), a feed opening is arranged at the bottom of the other end of the water washing tank body (1), a turnover box (4) is arranged at the bottom of one end of the water washing tank body (1) and positioned at the bottom of the feed opening, the side of the turnover box (4) is provided with a drying shell (5), the bottom end of the drying shell (5) is inserted into the turnover box (4), a motor No. two (6) is fixedly connected to the top of the drying shell (5), a screw conveying shaft No. two (7) is rotatably arranged in the drying shell (5), a rotating shaft of the motor No. two (6) is connected with the screw conveying shaft No. two (7) in a belt transmission manner, a plurality of heating coils (8) are fixedly connected to the top side of the inside of the drying shell (5), an inner ring of each heating coil (8) is sleeved on the outer ring of the top of the rotating shaft of the screw conveying shaft No. two (7), a blanking pipe is arranged on the bottom surface of the middle of the drying shell (5), the blanking pipe is positioned at the bottom of the heating coil (8), and the top ends of the paddles of the second spiral conveying shaft (7) are positioned at the bottom of the blanking pipe;
the bottom surface of the washing tank body (1) is provided with a support frame (9), a sewage tank (10) is arranged on the top surface of the support frame (9), a sewage hole (11) is arranged on the bottom surface of the washing tank body (1), the sewage hole (11) is communicated with the sewage tank (10), a plurality of through grooves (29) are arranged on the blade of the first screw conveying shaft (3), a baffle ring (12) is fixedly connected with the inner ring of the tail of the washing tank body (1), the cross section of the baffle ring (12) is triangular, an opening of the baffle ring (12) is close to the middle part of the washing tank body (1), and the baffle ring (12) is positioned on one side of the blanking port close to the middle part of the washing tank body (1);
the inside rigid coupling conical plate (26) of turnover case (4), the awl point of conical plate (26) is located the bottom, a plurality of drainage holes are seted up to conical plate (26), the bottom of drying shell (5) is located the middle part of conical plate (26), the bottom of turnover case (4) is provided with the outlet.
2. The process for preparing high water permeability concrete according to claim 1, wherein: the water-washing tank is characterized in that a plurality of dispersing seats (13) are fixedly connected to the outer ring of the rotating shaft of the first spiral conveying shaft (3), a plurality of sliding holes (14) are formed in one surface, close to the inner wall of the water-washing tank body (1), of each dispersing seat (13), a dispersing rod (15) is slidably mounted in each sliding hole (14), and the outer ring of each dispersing rod (15) is slidably matched with the inner wall of the water-washing tank body (1).
3. A process for preparing a high water permeability concrete according to claim 2, wherein: the sewage treatment device is characterized in that a plurality of vibration shrapnel (16) are fixedly connected in the sewage hole (11), elastic sheets (17) are fixedly connected between the adjacent vibration shrapnels (16), and the top of the vibration shrapnel (16) is in sliding fit with the end of the dispersing rod (15).
4. A process for preparing high water permeability concrete according to claim 3, wherein: the top of the drying shell (5) is rotationally provided with a transmission shaft (18), the transmission shaft (18) rotationally penetrates through the top wall of the drying shell (5), the top of the transmission shaft (18) is in transmission connection with a rotating shaft belt of a motor No. two (6), the middle outer ring of the transmission shaft (18) is fixedly connected with a sun gear (19), the top inner wall of the drying shell (5) is rotationally provided with a gear ring (20), the inner top wall of the drying shell (5) is rotationally provided with a planet gear carrier (21), the planet gear carrier (21) is rotationally provided with a plurality of planet gears (22), the planet gears (22) are positioned between the sun gear (19) and the gear ring (20), the planet gears (22) are respectively meshed with the sun gear (19) and the gear ring (20), one surface, close to the middle of the gear ring gear (20), of the drying shell (5) is fixedly connected with a connecting ring (23), the inner wall of the drying shell (5) is rotationally connected with a plurality of arc plates (24), the middle of the arc plates (24) is fixedly connected with the bottom ends of the second spiral conveying shaft (7), the top ends of the fan blades (25) are fixedly connected with the rotating shaft (25), the top of the drying shell (5) is provided with a plurality of ventilation holes.
5. The process for preparing high water permeability concrete according to claim 4, wherein: the inside rigid coupling of dry casing (5) separates seat (27), the middle part of separating seat (27) and the pivot outer lane normal running fit of No. two screw conveyer shafts (7), offer a plurality of through-holes (28) of separating seat (27), separate seat (27) and be located between unloading pipe and heating coil (8), the main part of separating seat (27) is water-absorbing rubber, and the bottom surface spraying waterproof coating of separating seat (27).
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| CN202210348194.9A CN114804733B (en) | 2022-04-01 | 2022-04-01 | High-water-permeability concrete formula and preparation process |
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| CN101349035A (en) * | 2008-09-09 | 2009-01-21 | 天津市欧陆建材有限公司 | High-strength fiber pervious concrete road pavement brick and preparation method thereof |
| DE102008044395A1 (en) * | 2008-12-05 | 2010-06-10 | Wacker Chemie Ag | Drainage concrete composition |
| CN109824296A (en) * | 2019-04-08 | 2019-05-31 | 湖南东方路固材料科技有限公司 | A kind of pervious concrete reinforcing agent and preparation method thereof |
| CN209798383U (en) * | 2019-04-15 | 2019-12-17 | 师晓琳 | Automatic change drying-machine |
| CN212349668U (en) * | 2020-05-27 | 2021-01-15 | 湖北浩元材料科技有限公司 | High-purity manganese carbonate draws belt cleaning device |
| CN213558810U (en) * | 2020-10-30 | 2021-06-29 | 焦作佰利联合颜料有限公司 | A washing unit that is used for ferrous sulfate production coating iron oxide black |
| CN112279617B (en) * | 2020-10-31 | 2022-01-04 | 永清县汇都混凝土有限公司 | High-strength high-water-permeability concrete and preparation method thereof |
| CN113087468B (en) * | 2021-04-08 | 2023-10-03 | 武汉来道建材科技有限公司 | High-wear-resistance light permeable concrete and preparation method thereof |
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