CN108708251B - Intermittent type formula multi-functional stirring station - Google Patents
Intermittent type formula multi-functional stirring station Download PDFInfo
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- CN108708251B CN108708251B CN201810751522.3A CN201810751522A CN108708251B CN 108708251 B CN108708251 B CN 108708251B CN 201810751522 A CN201810751522 A CN 201810751522A CN 108708251 B CN108708251 B CN 108708251B
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- weighing hopper
- stirring
- stone
- box body
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- 238000003756 stirring Methods 0.000 title claims abstract description 63
- 239000004576 sand Substances 0.000 claims abstract description 127
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 90
- 239000004575 stone Substances 0.000 claims abstract description 64
- 238000005303 weighing Methods 0.000 claims abstract description 57
- 239000000843 powder Substances 0.000 claims abstract description 54
- 230000003139 buffering effect Effects 0.000 claims abstract description 35
- 238000002156 mixing Methods 0.000 claims abstract description 35
- 238000001035 drying Methods 0.000 claims abstract description 18
- 239000010426 asphalt Substances 0.000 claims abstract description 13
- 238000000926 separation method Methods 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 claims abstract description 10
- 239000000654 additive Substances 0.000 claims abstract description 9
- 230000000996 additive effect Effects 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 210000004907 gland Anatomy 0.000 claims description 22
- 239000000498 cooling water Substances 0.000 claims description 16
- 239000000428 dust Substances 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 12
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000009826 distribution Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 239000011384 asphalt concrete Substances 0.000 description 18
- 239000004567 concrete Substances 0.000 description 17
- 239000004568 cement Substances 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 12
- 239000002994 raw material Substances 0.000 description 11
- 238000007789 sealing Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 208000033830 Hot Flashes Diseases 0.000 description 4
- 206010060800 Hot flush Diseases 0.000 description 4
- 241001125879 Gobio Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
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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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
-
- 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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/05—Crushing, pulverising or disintegrating apparatus; Aggregate screening, cleaning, drying or heating apparatus; Dust-collecting arrangements specially adapted therefor
-
- 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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1009—Plant wherein type or construction of the mixer are irrelevant
-
- 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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
- E01C19/104—Mixing by means of movable members in a non-rotating mixing enclosure, e.g. stirrers
Abstract
The invention discloses an intermittent multifunctional stirring station, which belongs to the technical field of municipal engineering equipment and comprises a stirring and mixing system, a powder feeding device and an aggregate feeding device with a drying function; the stirring and mixing system comprises a vibrating screen, a sand-powder separation device, a sand buffering bin, a stone buffering bin, an aggregate weighing hopper, a powder weighing hopper, an asphalt weighing hopper, a water weighing hopper, an additive weighing hopper and a stirring host machine, wherein a stirring shaft of the stirring host machine is provided with a shaft end water cooling device; the powder feeding device is connected with the powder metering hopper; the aggregate feeding device is connected with the vibrating screen. The invention integrates multiple functions, and saves more than 50% of land compared with the combination of the prior equipment; the distribution power is saved by more than 50%; the equipment investment is reduced by more than 40 percent; the installation and transportation of equipment and the construction cost of supporting facilities are reduced by more than 50 percent; meanwhile, the environmental pollution source can be reduced, and the investment of environmental protection facilities is reduced by more than 50% under the condition of meeting the same environmental protection requirement.
Description
Technical Field
The invention belongs to the technical field of municipal engineering equipment, in particular to the technical field of municipal transportation, and particularly relates to an intermittent type multifunctional stirring station.
Background
The traffic municipal engineering is characterized in that cement concrete is needed for basic engineering for a long time, and ground materials needed by asphalt concrete are also prepared for a long time, but asphalt concrete is needed to assault and pave a pavement when the engineering ends. The existing cement concrete, asphalt concrete and machine sand broken stone products are produced by using three independent devices, and in the engineering, the asphalt concrete devices are idle for a long time, so that a large amount of land, power distribution and engineering personnel are wasted.
In addition, during the field operation of the expressway, the supply of commodity asphalt or commodity cement concrete is not easy to obtain, so that the transportation cost is high, and the production efficiency is easy to influence.
Disclosure of Invention
In order to solve at least a part of the problems in the prior art, the invention aims to provide an intermittent multifunctional stirring station.
The technical scheme adopted by the invention is as follows:
an intermittent multifunctional stirring station comprises a stirring and mixing system, a powder feeding device and an aggregate feeding device with a drying function;
the stirring and mixing system comprises a vibrating screen, a sand-powder separation device, a sand buffering bin, a stone buffering bin, an aggregate weighing hopper, a powder weighing hopper, an asphalt weighing hopper, a water weighing hopper, an additive weighing hopper and a stirring host machine, wherein a sand discharge port of the vibrating screen is connected with the sand buffering bin through the sand-powder separation device, and a stone discharge port of the vibrating screen is connected with the stone buffering bin; the sand buffering bin and the stone buffering bin are connected with the mixing host machine through an aggregate weighing hopper; the powder weighing hopper, the asphalt weighing hopper, the water weighing hopper and the additive weighing hopper are respectively connected with the mixing host; the stirring shaft of the stirring host is provided with a shaft end water cooling device;
the powder feeding device is connected with the powder metering hopper; and the aggregate feeding device is connected with the vibrating screen.
Preferably, the aggregate feeding device comprises a feeding hopper, a sand finished product bin, a stone finished product bin, a sand weighing hopper, a stone weighing hopper, a crusher, a drying cylinder and a stone lifting device, wherein the feeding hopper is connected with the stone lifting device through the crusher; the sand finished product bin is connected with the drying cylinder through a sand weighing hopper, the stone finished product bin is connected with the drying cylinder through a stone weighing hopper, and the drying cylinder is connected with the stone lifting device; the stone lifting device is connected with the vibrating screen.
Preferably, the sand buffering bin and the stone buffering bin are respectively provided with a flash collecting device, and the flash collecting device of the sand buffering bin is connected with the sand finished product bin; the overflow collecting device of the stone buffering bin is connected with a grading regulator, and the grading regulator is respectively connected with the stone finished product bin and the crusher.
Further, the vibrating screen is provided with a feed back opening, and the feed back opening is connected with the crusher.
Further, the sand-powder separation device comprises a sand-powder separator, a blower and an induced draft fan, wherein the sand-powder separator is formed by splicing a rectangular box body and an arc-shaped box body, the tail end of the rectangular box body is connected with an air outlet of the blower through an air inlet drainage tube, an organic sand feeding port is arranged on the air inlet drainage tube, and a choke plate is arranged on one side, close to the blower, of the organic sand feeding port; the bottom of the rectangular box body is provided with a coarse sand discharge port and a medium sand discharge port; the outlet of the arc-shaped box body is connected with the induced air port of the induced draft fan through an air duct, and a first fine sand discharge port is arranged at the bottom of the joint of the arc-shaped box body and the rectangular box body; in the installation state, the sand-powder separator is obliquely arranged, and the outlet of the arc-shaped box body is vertically upwards; the coarse sand discharge port, the middle sand discharge port and the first fine sand discharge port are respectively connected with the sand cache bin.
Preferably, the coarse sand discharge holes and the middle sand discharge holes are funnel-shaped and are arranged at the bottom of the rectangular box body side by side, wherein two coarse sand discharge holes are arranged at the bottom of the rectangular box body and near the tail end, and the middle sand discharge holes are arranged at the bottom of the rectangular box body and near the front end; the side face of the tail end of the rectangular box body is provided with a slope matched with the coarse sand discharge hole.
Preferably, the rectangular box body is a rectangular box body with the inner diameter of 4.6m, the width of 1.0m and the height of 1.8 m; the air inlet drainage tube is a rectangular tube with the inner diameter of 1.0m and the height of 20cm, and one end connected with the air outlet of the air blower is in a horn shape; the sand feeding port is arranged at a position 20cm away from the rectangular box body on the wind inlet drainage tube; the choke plate stretches into the wind inlet drainage tube for 5cm; the first fine sand discharge hole is a strip-shaped slit with the width of 3cm and is arranged at the position, away from the rectangular box body, of the bottom of the arc-shaped box body by 30 cm.
Further, a re-removing device is further arranged on the air duct between the arc-shaped box body and the induced draft fan, a second fine sand discharging port is arranged at the bottom of the re-removing device, and the second fine sand discharging port is connected with a sand cache bin.
Further, an air valve is arranged on the air duct between the re-removing device and the induced draft fan.
Preferably, the motors of the blower and the induced draft fan are variable-frequency speed-regulating motors.
Preferably, the induced air port of the induced draft fan is provided with a dust remover.
Further, the mixing host comprises a stirring box and a stirring shaft, and the stirring shaft is arranged on the stirring box through a mounting assembly; wherein, the installation component comprises a shaft head protecting ring and a shaft head outer shell gland; the shaft head protecting ring is provided with a first diversion trench, and the shaft head outer shell pressing cover is provided with a second diversion trench; in the installation state, the first diversion trench and the second diversion trench are correspondingly arranged, so that the first diversion trench and the second diversion trench are combined together to form a cooling water diversion channel; the shaft head shell pressing cover is also provided with a water inlet channel and a water outlet channel which are communicated with the cooling water diversion channel.
Further, the first diversion trench comprises an annular axial trench formed on the shaft head protecting ring in a manner that the surface is downwards concave and an annular radial trench formed inside the shaft head protecting ring; the outer end of the annular radial groove is communicated with the bottom end of the annular axial groove, so that the section of the first diversion trench is L-shaped.
Preferably, the second diversion trench is an annular groove formed on the shaft head shell gland in a manner that the surface of the second diversion trench is concave downwards; and the width of the annular groove is the same as the width of the annular axial groove.
Preferably, the water inlet channel is formed in the shaft head shell gland in the radial direction, one end of the water inlet channel is communicated with the annular groove, and the other end of the water inlet channel is formed as a water inlet on the circumferential surface of the shaft head shell gland; the water outlet channel is formed in the shaft head shell gland along the radial direction, one end of the water outlet channel is communicated with the annular groove, and the other end of the water outlet channel is formed as a water outlet on the circumferential surface of the shaft head shell gland; and the water inlet channel and the water outlet channel are symmetrically arranged in the shaft head shell gland.
Further, a water inlet joint is arranged at the water inlet and is connected with a water supply device through a water inlet pipe; and a water outlet joint is arranged at the water outlet and is connected with a water supply device through a water outlet pipe.
Further, the water supply device comprises a heat dissipation box; a radiating pipe is arranged in the radiating box; the water outlet end of the radiating pipe is connected with the water inlet pipe through a miniature water pump; the water inlet end of the radiating pipe is connected with the water outlet pipe.
Preferably, the first diversion trench is a spiral trench.
Preferably, a waterproof sealing ring is further arranged at the joint of the first diversion trench and the second diversion trench.
The beneficial effects of the invention are as follows:
the invention can not only produce intermittent cement concrete, but also produce intermittent asphalt concrete, and has high product quality and long service life of the stirring station.
The invention is provided with the crusher, can produce by means of the non-graded sand and stone raw materials even under the condition of no commercial asphalt or commercial cement concrete supply, and has high adaptability.
The invention integrates multiple functions, and compared with the combination of the prior equipment, the invention saves more than 50% of land; the distribution power is saved by more than 50%; the equipment investment is reduced by more than 40 percent; the installation and transportation of equipment and the construction cost of supporting facilities are reduced by more than 50 percent; meanwhile, the environmental pollution source can be reduced, and the investment of environmental protection facilities is reduced by more than 50% under the condition of meeting the same environmental protection requirement.
The invention can also consume the heat reservoir aggregate formed by asphalt concrete production in a cement concrete production mode, and no pollution is formed by discharging.
The invention can send the hot waste aggregate and hot flash formed by the original asphalt concrete production into the crusher nearby, and then screen and recycle the hot waste aggregate and hot flash dust and hot wave pollution are not formed.
According to the invention, the common hot flash device in the original asphalt station is changed into each level of ingredients and independent flash, and then the grading adjustment system is added, so that the sand and gravel production and hot flash recycling are realized.
The invention adopts dry method to produce machine sand broken stone, which can save fuel consumption in asphalt concrete production.
According to the sand-powder separation device, the sand powder in the sand-powder separator is separated by the blower and the induced draft fan, the special shape structure of the sand-powder separator can ensure that the stone powder content in the machine sand is lower than 4%, and the quality is more stable.
The stirring main machine of the invention is a stirrer which can stir asphalt concrete and cement concrete through a unique shaft end water cooling device structure.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the agitation mixing system.
Fig. 3 is a schematic structural view of the aggregate feeding device.
Fig. 4 is a schematic structural view of the sand-powder separating apparatus.
Fig. 5 is an enlarged view of a portion a of fig. 4.
Fig. 6 is a K-way view of fig. 4.
Fig. 7 is a schematic structural diagram of the mixing host.
Fig. 8 is a partial enlarged view of fig. 7.
Fig. 9 is a schematic view of a heat sink mounted on a blender.
Fig. 10 is a schematic view of the installation structure of a stirring shaft in a stirrer of the prior art.
Fig. 11 is a partial enlarged view of fig. 10.
In the figure: 100-stirring and mixing system; 200-powder feeding device; 300-aggregate feeding device; 400-sand powder separating device; 500-mixing a host; 600-gradation regulator;
101-a vibrating screen; 102-a sand buffering bin; 103-stone buffering bin; 104-an aggregate weighing hopper; 105-powder metering hopper; 106-an asphalt measuring hopper; 107-a water metering hopper; 108-an additive weighing hopper;
301-a feeding hopper; 302-a sand finished product bin; 303-a stone finished product bin; 304-a sand weighing hopper; 305-a stone weighing hopper; 306-a crusher; 307-drying cylinder; 308-stone lifting device;
401-sand-powder separator; 402-a blower; 403-induced draft fan; 404-wind inlet drainage tube; 405-a sand feeding port; 406-a coarse sand discharge port; 407-a middle sand discharge hole; 408-air duct; 409-a first fine sand discharge port; 410-a choke plate; 411-sloping surface; 412-a re-divide device; 413-a second fine sand discharge port; 414-air valve; 415-a dust separator;
501-a stirring tank; 502—stirring shaft 502; 503-a shaft head protection ring; 504-spindle nose housing gland; 505-first diversion trench; 506-an annular axial groove; 507-annular radial slots; 508-a second diversion trench; 509-cooling water diversion channels; 510-a water inlet channel; 511-a water outlet channel; 512-water inlet; 513-a water outlet; 514-a heat-dissipating box;
in fig. 7-11: 1-key, 2-stirring shaft, 3-framework sealing ring B, 4-shaft head end cover C, 5-shaft head shell B, 6-bearing, 7-oil plug, 8-framework sealing ring A, 9-stirring shaft steel sleeve, 10-shaft head end cover B, 11-side arm limit ring, 12-shaft head protection ring B, 13-shaft head protection ring A, 14-yellow glue locking steel frame, 15-yellow glue, 16-shaft head shell A, 17-inner hexagonal bolt A, 18-shaft head end cover A, 19-round nut, 20-oil mirror, 21-inner hexagonal, 22-framework sealing copper ring, 23-framework sealing ring C, 24-self-locking nut, 25-lead screw, 26-floating seal ring, 27-sealing rings, 28-inner hexagon bolts B, 29-countersunk inner hexagon, 30-fixed inner hexagon, 31-O-shaped sealing rings, 32-inner hexagon bolts C, 33-unidirectional sealing rings, 34-shaft locking device bodies, 53-grooved taper end fastening screws, 54-paper pads, 57-self-locking nuts, 59-water outlet pipes, 60-radiating pipes, 61-miniature water pumps, 62-water inlet pipes and 63-concentrated lubrication, 64-water spraying pipes, 65-left and right speed reducer connecting sleeves, 66-speed reducers, 67-large pulleys, 68-small pulleys, 69-narrow V belts, 70-motors and 71-shaft head shell gland A.
Detailed Description
The invention is further illustrated by the following description of specific embodiments in conjunction with the accompanying drawings.
As shown in fig. 1 to 3, the present embodiment provides an intermittent multifunctional stirring station, which comprises a stirring and mixing system 100, a powder feeding device 200 and an aggregate feeding device 300 with a drying function; the stirring and mixing system 100 comprises a vibrating screen 101, a sand-powder separation device 400, a sand buffering bin 102, a stone buffering bin 103, an aggregate weighing hopper 104, a powder weighing hopper 105, an asphalt weighing hopper 106, a water weighing hopper 107, an additive weighing hopper 108 and a stirring host 500, wherein a sand discharge port of the vibrating screen 101 is connected with the sand buffering bin 102 through the sand-powder separation device 400, and a stone discharge port of the vibrating screen 101 is connected with the stone buffering bin 103; the sand buffering bin 102 and the stone buffering bin 103 are connected with the mixing host 500 through the aggregate weighing hopper 104; the powder weighing hopper 105, the asphalt weighing hopper 106, the water weighing hopper 107 and the additive weighing hopper 108 are respectively connected with the mixing host 500; the stirring shaft of the stirring host 500 is provided with a shaft end water cooling device; the powder feeding device 200 is connected with the powder measuring hopper 105; the aggregate feeding device 300 is connected to the vibrating screen 101. The connection in this embodiment refers to connection by using a conveyor belt, a conveying screw, or other conveying mechanisms capable of conveying materials, and it is possible for those skilled in the art to select a corresponding conveying manner for the corresponding materials, which will not be described here.
The aggregate feeding device 300 with the drying function can provide the stirring and mixing system 100 with cold aggregate for producing cement concrete and can also provide the stirring and mixing system 100 with hot aggregate for producing asphalt concrete. Before being sent to the mixing host 500, the aggregate enters the vibrating screen 101 for sieving and grading, is respectively metered after being cached in the grading way, and then enters the mixing host 500, so that the accuracy of the proportioning can be improved. Meanwhile, the sand-powder separation device 400 can effectively remove dust mixed in sand, improve the quality of aggregate and greatly improve the quality of asphalt concrete. The mixing host 500 is connected with a powder weighing hopper 105, an asphalt weighing hopper 106, a water weighing hopper 107 and an additive weighing hopper 108, and can be used for preparing raw materials for cement concrete production and raw materials for asphalt concrete production. The stirring shaft of the stirring host 500 is provided with a shaft end water cooling device, and cold mixing is performed during cement concrete production without starting the shaft end water cooling device; when asphalt concrete is produced, hot materials are mixed, and a shaft end water cooling device is started, so that the sealing of the mixing host 500 can be ensured. The intermittent multifunctional stirring station can be used for producing intermittent cement concrete and intermittent asphalt concrete, and has the advantages of high product quality and long service life.
In order to improve the application scope of the present invention, as shown in fig. 3, the aggregate feeding device 300 comprises a feeding hopper 301, a sand finished product bin 302, a stone finished product bin 303, a sand weighing hopper 304, a stone weighing hopper 305, a crusher 306, a drying cylinder 307 and a stone lifting device 308, wherein the feeding hopper 301 is connected with the stone lifting device 308 through the crusher 306; the sand finished product bin 302 is connected with the drying cylinder 307 through a sand weighing hopper 304, the stone finished product bin 303 is connected with the drying cylinder 307 through a stone weighing hopper 305, and the drying cylinder 307 is connected with a stone lifting device 308; the stone lifting device 308 is connected with the vibrating screen 101. The invention not only can adopt the finished product classified sand and stone raw materials, but also can directly adopt the ungraded sand and stone raw materials with the diameter of less than 100mm for production. Firstly, the ungraded sand and stone raw materials are directly fed from a feeding hopper 301, sent into a crusher 306 by a conveying belt to be crushed, and then graded by a vibrating screen 101 to produce cement concrete. The sand finished product bin 302 and the stone finished product bin 303 are used for storing finished product raw materials, the sand weighing hopper 304 and the stone weighing hopper 305 are used for pre-proportioning, and then the asphalt concrete is produced by grading through the vibrating screen 101 after being dried and heated.
In order to improve the production efficiency of the invention and reduce the production cost, the sand buffering bin 102 and the stone buffering bin 103 are respectively provided with a flash collecting device, and the flash collecting device of the sand buffering bin 102 is connected with the sand finished product bin 302; the overflow collecting device of the stone buffer bin 103 is connected with a grading regulator 600, and the grading regulator 600 is respectively connected with the stone finished product bin 303 and the crusher 306. The cement concrete is produced by using the non-graded sand and stone raw materials, and simultaneously the finished graded sand and stone raw materials can be produced, so that preparation is made for producing asphalt concrete. Of course, it can also be used only for producing graded sand raw material, and not for producing cement concrete.
To further improve the quality of the finished graded sand produced by the crusher 306, the vibrating screen 101 is provided with a feed back opening, which is connected to the crusher 306, and the stones which do not correspond to the size of the size grading will be returned to the crusher 306 for re-furnace.
As shown in fig. 4-6, in order to improve the quality of asphalt concrete, the powder content in sand is ensured to be below 4%, the concrete structure of the sand-powder separation device 400 comprises a sand-powder separator 401, a blower 402 and a draught fan 403, wherein the sand-powder separator 401 is formed by splicing a rectangular box body and an arc-shaped box body, the tail end of the rectangular box body is connected with an air outlet of the blower 402 through an air inlet drainage tube 404, a sand inlet 405 is arranged on the air inlet drainage tube 404, and a choke plate 410 is arranged on one side of the sand inlet 405, which is close to the blower 402; the bottom of the rectangular box body is provided with a coarse sand discharge port 406 and a medium sand discharge port 407; the outlet of the arc-shaped box body is connected with the air inlet of the induced draft fan 403 through an air duct 408, and a first fine sand discharge hole 409 is arranged at the bottom of the arc-shaped box body and close to the rectangular box body; in the installed state, the sand and powder separator 401 is arranged obliquely, and the outlet of the arc-shaped box body is vertically upward.
In a specific implementation process, as a preferable mode, the coarse sand discharge holes 406 and the middle sand discharge holes 407 in the embodiment of the invention are funnel-shaped and are arranged at the bottom of the rectangular box side by side, wherein two coarse sand discharge holes 406 are arranged at the bottom of the rectangular box and near the tail end, and the middle sand discharge holes 407 are arranged at the bottom of the rectangular box and near the front end; the side of the tail end of the rectangular box body is provided with a slope 411 matched with the coarse sand discharge hole 406. Because the sand with the average grain diameter between 0.5 and 4.75mm is commonly called coarse sand, but because the grain diameter difference v is too large, the purposes of coarse sand with different grain diameters are different, and therefore, the embodiment of the invention is provided with two coarse sand discharge ports 406 for separating coarse sand with different grain diameters, thereby meeting different use requirements of users.
In a specific implementation process, it is further preferable that the rectangular box body in the embodiment of the invention is a rectangular box body with an inner diameter of 4.6m, a width of 1.0m and a height of 1.8 m; the air inlet drainage tube 404 is a rectangular tube with an inner diameter of 1.0m and a height of 20cm, and one end connected with the air outlet of the blower 402 is in a horn shape; the sand feeding port 405 is arranged on the air inlet drainage tube 404 at a position 20cm away from the rectangular box body; the choke plate 410 extends 5cm into the wind draft tube 404; the first fine sand discharging hole 409 is a strip-shaped slit with the width of 3cm and is arranged at the position of the bottom of the arc-shaped box body, which is 30cm away from the rectangular box body. The special shape structure can ensure that the stone powder content in the machine sand is lower than 4%, and ensure that the stone powder content in the building material produced by taking the machine sand as the raw material is less, and the quality is more stable.
In a specific implementation process, because the grain size of the fine sand is very small, the fine sand is very light and is easy to be led away along with the air duct 408, in order to collect more fine sand, it is further preferred that a re-removing device 412 is further arranged on the air duct 408 between the arc-shaped box body and the induced draft fan 403 in the embodiment of the present invention, a second fine sand discharging hole 413 is arranged at the bottom of the re-removing device 412, and the second fine sand discharging hole 413 is connected with the fine sand collecting conveyor belt 10.
In a specific implementation process, in order to control the air volume in the air duct 408 and thus control the dust content in the sand, in an alternative scheme, an air valve 414 is disposed on the air duct 408 between the re-removing device 412 and the induced draft fan 403, and the air volume in the air duct 408 is controlled through the air valve 414, so that the control of the dust content in the sand is realized, and different use requirements of users are further satisfied. In another alternative scheme, the motors of the blower 402 and the induced draft fan 403 are variable-frequency speed-regulating motors, and the wind speeds of the blower 402 and the induced draft fan 403 are controlled through the variable-frequency speed-regulating motors, so that the dust content in the sand is controlled, and different use requirements of users are met.
In a specific implementation process, dust after sand-powder separation can pollute the environment if directly discharged, and can damage the body of operators around the system. In order to prevent the above-mentioned situation from being sent, as an advantage, in the embodiment of the present invention, the dust remover 415 is arranged at the air inlet of the induced draft fan 403, and the dust remover 415 is arranged to treat the dust generated in the sand material, so as to avoid the direct discharge of the dust and protect the environment and the health of the operators.
As shown in fig. 7-11, in particular, mixing master 500 includes a mixing tank 501 and a mixing shaft 502, with mixing shaft 502 being mounted to mixing tank 501 by a mounting assembly. The mounting assembly includes a gudgeon guard ring 503 and a gudgeon housing gland 504. A first diversion trench 505 is provided on the head protection ring 503, and a second diversion trench 508 is provided on the head housing gland 504. Preferably, the first diversion trench 505 includes an annular axial groove 506 formed on the head protecting ring 503 in such a manner that the surface thereof is recessed downward and an annular radial groove 507 formed inside the head protecting ring 503; the outer end of the annular radial groove 507 is communicated with the bottom end of the annular axial groove 506, so that the cross section of the first diversion trench 505 is L-shaped. Preferably, the first diversion trench 505 is a spiral trench. Preferably, the second diversion trench 508 is an annular groove formed on the axle head housing gland 504 in a manner that the surface is concave downward; and the width of the annular groove is the same as the width of the annular axial groove 506. In the installed state, the first diversion trench 505 and the second diversion trench 508 are correspondingly arranged, so that the first diversion trench 505 and the second diversion trench 508 are combined together to form a cooling water diversion channel 509.
Further, a waterproof sealing ring is further arranged at the joint of the first diversion trench 505 and the second diversion trench 508.
A water inlet passage 510 and a water outlet passage 511 communicating with the cooling water guide passage 509 are also provided on the stub shaft housing gland 504.
Specifically, a water inlet channel 510 is formed in the spindle head housing gland 504 in a radial direction, one end of which is communicated with the annular groove, and the other end of which is formed as a water inlet 512 on the circumferential surface of the spindle head housing gland 504; the water outlet passage 511 is formed in the spindle head housing gland 504 in a radial direction, one end of which is communicated with the annular groove, and the other end of which is formed as a water outlet 513 on the circumferential surface of the spindle head housing gland 504; and, the water inlet passage 510 and the water outlet passage 511 are symmetrically disposed within the head housing gland 504.
A water inlet joint is arranged at the water inlet 512 and is connected with a water supply device through a water inlet pipe; a water outlet joint is arranged at the water outlet 513 and is connected with a water supply device through a water outlet pipe; so that the cooling water can circulate in the cooling water guide passage 509, the water inlet passage 510, the water outlet passage 511, and the water supply device, forming circulating cooling water.
Preferably, the water supply means includes a heat radiation tank 514; a radiating pipe 60 is provided in the radiating tank 514; the water outlet end of the radiating pipe 60 is connected with a water inlet pipe through a miniature water pump 61; the water inlet end of the radiating pipe 60 is connected with the water outlet pipe.
The low-temperature water in the radiating pipe 60 in the radiating box 514 is sent into the water inlet pipe by the miniature water pump 61, then flows through the water inlet channel 510 and the cooling water diversion channel 509 to take away the heat at the joint of the stirring shaft, and then flows back into the radiating pipe 60 after passing through the water outlet channel 511 and the water outlet pipe to be cooled, and then enters the water inlet channel 510 and the cooling water diversion channel 509 again, and the circulation is performed, so that the temperature at the joint of the stirring shaft is reduced, and the temperature at the joint of the stirring shaft is not damaged by high temperature.
The mixing main machine 500 of the embodiment is provided with a first diversion trench 505 on a shaft head protection ring 503 in the installation assembly, a second diversion trench 508 on a shaft head shell gland 504, and the first diversion trench 505 and the second diversion trench 508 are combined together to form a cooling water diversion channel 509; in the use state, the cooling water guide channel 509 is connected to the water supply device through the water inlet channel 510 and the water outlet channel 511, so that the cooling water can circularly flow in the cooling water guide channel 509, the water inlet channel 510 and the water outlet channel 511, and the joint of the stirring tank 501 and the stirring shaft 502 can be cooled. By adopting the mixing main machine 500, the cement concrete mixer or the asphalt mixer of the mixing plant can be formed into a mixer capable of mixing asphalt concrete and cement concrete.
The invention is not limited to the alternative embodiments described above, but any person may derive other various forms of products in the light of the present invention. The above detailed description should not be construed as limiting the scope of the invention, which is defined in the claims and the description may be used to interpret the claims.
Claims (8)
1. An intermittent multifunctional stirring station is characterized in that: comprises a stirring and mixing system (100), a powder feeding device (200) and an aggregate feeding device (300) with a drying function;
the stirring and mixing system (100) comprises a vibrating screen (101), a sand-powder separation device (400), a sand buffering bin (102), a stone buffering bin (103), an aggregate weighing hopper (104), a powder weighing hopper (105), an asphalt weighing hopper (106), a water weighing hopper (107), an additive weighing hopper (108) and a stirring host machine (500), wherein a sand discharge port of the vibrating screen (101) is connected with the sand buffering bin (102) through the sand-powder separation device (400), and a stone discharge port of the vibrating screen (101) is connected with the stone buffering bin (103); the sand buffering bin (102) and the stone buffering bin (103) are connected with the mixing host machine (500) through the aggregate weighing hopper (104); the powder weighing hopper (105), the asphalt weighing hopper (106), the water weighing hopper (107) and the additive weighing hopper (108) are respectively connected with the mixing host machine (500); the stirring shaft of the stirring host machine (500) is provided with a shaft end water cooling device;
the powder feeding device (200) is connected with the powder measuring hopper (105); the aggregate feeding device (300) is connected with the vibrating screen (101);
the aggregate feeding device (300) comprises a feeding hopper (301), a sand finished product bin (302), a stone finished product bin (303), a sand weighing hopper (304), a stone weighing hopper (305), a crusher (306), a drying cylinder (307) and a stone lifting device (308), wherein the feeding hopper (301) is connected with the stone lifting device (308) through the crusher (306); the sand finished product bin (302) is connected with the drying cylinder (307) through a sand weighing hopper (304), the stone finished product bin (303) is connected with the drying cylinder (307) through a stone weighing hopper (305), and the drying cylinder (307) is connected with the stone lifting device (308); the stone lifting device (308) is connected with the vibrating screen (101);
the sand-powder separation device (400) comprises a sand-powder separator (401), a blower (402) and a draught fan (403), wherein the sand-powder separator (401) is formed by splicing a rectangular box body and an arc-shaped box body, the tail end of the rectangular box body is connected with an air outlet of the blower (402) through an air inlet drainage tube (404), an organic sand feeding port (405) is arranged on the air inlet drainage tube (404), and a choke plate (410) is arranged on one side, close to the blower (402), of the machine sand feeding port (405); the bottom of the rectangular box body is provided with a coarse sand discharge hole (406) and a medium sand discharge hole (407); the outlet of the arc-shaped box body is connected with the air inlet of the induced draft fan (403) through an air duct (408), and a first fine sand discharge hole (409) is formed in the bottom of the joint of the arc-shaped box body and the rectangular box body; in the installation state, the sand-powder separator (401) is obliquely arranged, and the outlet of the arc-shaped box body is vertically upwards; the coarse sand discharge port (406), the middle sand discharge port (407) and the first fine sand discharge port (409) are respectively connected with the sand buffering bin (102);
the coarse sand discharging holes (406) and the medium sand discharging holes (407) are funnel-shaped and are arranged at the bottom of the rectangular box body side by side, wherein two coarse sand discharging holes (406) are arranged at the bottom of the rectangular box body and are close to the tail end, and the medium sand discharging holes (407) are arranged at the bottom of the rectangular box body and are close to the front end; the side surface of the tail end of the rectangular box body is provided with a slope (411) matched with the coarse sand discharge hole (406); the sand feeding port (405) is arranged at a position 20cm away from the rectangular box body on the air inlet drainage tube (404); the choke plate (410) extends into the wind-in draft tube (404).
2. A batch type multi-purpose stirring station as set forth in claim 1 wherein: the sand buffering bin (102) and the stone buffering bin (103) are respectively provided with a flash collecting device, and the flash collecting device of the sand buffering bin (102) is connected with the sand finished product bin (302); the overflow collecting device of the stone buffering bin (103) is connected with a grading regulator (600), and the grading regulator (600) is respectively connected with the stone finished product bin (303) and the crusher (306).
3. A batch type multi-purpose stirring station as set forth in claim 1 wherein: the vibrating screen (101) is provided with a feed back opening, and the feed back opening is connected with the crusher (306).
4. A batch type multi-purpose stirring station as set forth in claim 1 wherein: the device is characterized in that a re-removing device (412) is further arranged on an air duct (408) between the arc-shaped box body and the induced draft fan (403), a second fine sand discharging hole (413) is formed in the bottom of the re-removing device (412), and the second fine sand discharging hole (413) is connected with the sand buffering bin (102).
5. A batch type multi-purpose stirring station as set forth in claim 4 wherein: an air valve (414) is arranged on the air duct (408) between the re-removing device (412) and the induced draft fan (403); or the motors of the blower (402) and the induced draft fan (403) are variable-frequency speed-regulating motors.
6. A batch type multi-purpose stirring station as set forth in claim 5 wherein: the induced air port of the induced draft fan (403) is provided with a dust remover (415).
7. A batch type multi-purpose stirring station as claimed in any one of claims 1 to 3, wherein: the stirring host machine (500) comprises a stirring box (501) and a stirring shaft (502), wherein the stirring shaft (502) is installed on the stirring box (501) through an installation component;
wherein the mounting assembly comprises a spindle head protection ring (503) and a spindle head housing gland (400);
a first diversion trench (505) is arranged on the shaft head protection ring (503), and a second diversion trench (508) is arranged on the shaft head shell gland (400);
in the installation state, the first diversion trench (505) and the second diversion trench (508) are correspondingly arranged, so that the first diversion trench (505) and the second diversion trench (508) are combined together to form a cooling water diversion channel (509);
the shaft head shell gland (400) is also provided with a water inlet channel (510) and a water outlet channel (511) which are communicated with the cooling water diversion channel (509).
8. A batch type multi-purpose stirring station as set forth in claim 7 wherein: the first diversion trench (505) comprises an annular axial trench (506) formed on the shaft head protection ring (503) in a manner that the surface is concave downwards and an annular radial trench (507) formed inside the shaft head protection ring (503);
the outer end of the annular radial groove (507) is communicated with the bottom end of the annular axial groove (506), so that the cross section of the first diversion groove (505) is L-shaped.
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| CN201810751522.3A CN108708251B (en) | 2018-07-10 | 2018-07-10 | Intermittent type formula multi-functional stirring station |
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| CN109985715A (en) * | 2019-05-15 | 2019-07-09 | 成都广维重工科技有限公司 | A kind of lime stone system of processing |
| CN109968541A (en) * | 2019-05-15 | 2019-07-05 | 成都广维重工科技有限公司 | A kind of environment-friendly type sandstone self-control concrete mixing plant |
| CN110029556A (en) * | 2019-05-15 | 2019-07-19 | 成都广维重工科技有限公司 | A kind of sandstone self-control intermittent asphalt concrete mixing plant |
| CN110629761B (en) * | 2019-09-29 | 2021-03-09 | 三峡大学 | Sand filling machine for hydraulic reclamation construction of island on water and construction method |
| CN111546502A (en) * | 2020-05-11 | 2020-08-18 | 郑州水工机械有限公司 | Material yard conveying system with special storage bin |
| CN113181991A (en) * | 2021-04-29 | 2021-07-30 | 重庆渝粒乡米业有限公司 | Rice processing technology |
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