CN210892592U

CN210892592U - Automatic sand material drying machine for dry-spraying concrete in geotechnical engineering

Info

Publication number: CN210892592U
Application number: CN201921756888.6U
Authority: CN
Inventors: 唐勋; 刘晓明; 王武昌; 刘华夏
Original assignee: Hunan Dinggong Geotechnical Special Equipment Co ltd
Current assignee: Hunan Dinggong Geotechnical Special Equipment Co ltd
Priority date: 2019-10-19
Filing date: 2019-10-19
Publication date: 2020-06-30
Anticipated expiration: 2029-10-19

Abstract

The utility model provides an automatic desiccator of sand material for geotechnical engineering spouts concrete futilely, including the drying cabinet, be equipped with the feeder hopper on the drying cabinet, stoving mechanism, discharge mechanism, gas outlet and controller, stoving mechanism includes transport mechanism, dispersion mechanism, screen cloth and hot-blast mechanism, transport mechanism and screen cloth all incline the setting, the top of transport mechanism bottom is located to the feeder hopper, dispersion mechanism locates the below on transport mechanism top, dispersion mechanism's below is located to the screen cloth, one side of screen cloth is located to hot-blast mechanism, discharge mechanism locates the bottom of screen cloth, the bottom of drying cabinet is located to the gas outlet, the controller respectively with transport mechanism, dispersion mechanism, hot-blast mechanism and discharge mechanism electric connection. The utility model discloses rational in infrastructure, easy and simple to handle, particle diameter and moisture content that can control sand material can avoid because of sand material moisture content is too high, and cement takes place the reaction with water in the pipe and solidifies, arouses conglomeration, stifled pipe blast even, can promote follow-up concrete efficiency of construction and security of spouting futilely by a wide margin.

Description

Automatic sand material drying machine for dry-spraying concrete in geotechnical engineering

Technical Field

The utility model relates to a geotechnical engineering spouts concrete technical field futilely, in particular to a sand material automatic drying machine that is used for geotechnical engineering to spout concrete futilely.

Background

The dry concrete spraying method for rock-soil engineering includes mixing cement, sand and stone in certain proportion inside stirrer, feeding the mixture into sprayer, adding powdered aluminate accelerator while feeding, pumping water with water pump into the material conveying pipe of the sprayer, mixing the water with the mixture, and spraying the water and the mixture with the sprayer onto the sprayed surface to form the concrete.

Because the method has simple and convenient construction process flow and needs less construction equipment and tools, the dry-sprayed concrete has high requirements on the grain diameter and the water content of the sand material, and the rebound rate is increased when the grain diameter of the sand material is too large; when the grain size of the sand is small, the concrete strength is low; when the water content of the sand material is lower, a large amount of dust is generated in the dry spraying process; when the water content of the sand material is too high, the humidity of the mixture is too high, and cement can react with water in the pipe to be solidified, so that the cement is easy to agglomerate in the pipe, pipe blockage and even pipe explosion can be caused, and normal construction and safe production are influenced. Therefore, it is required to develop an automatic dryer for dry shotcrete in geotechnical engineering to control the particle size and water content of sand.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that, overcome the above-mentioned defect that prior art exists, provide an easy and simple to handle, can control the particle diameter of sand material and the sand material automatic drying machine that is used for geotechnical engineering dry shotcrete concrete of moisture content.

The utility model provides a technical scheme that its technical problem adopted is, a sand material automatic drying machine for geotechnical engineering spouts concrete futilely, including the drying cabinet, be equipped with feeder hopper, stoving mechanism, discharge mechanism, gas outlet and controller on the drying cabinet, stoving mechanism includes transport mechanism, dispersion mechanism, screen cloth and hot-blast mechanism, transport mechanism and the equal slope setting of screen cloth, the top of transport mechanism bottom is located to the feeder hopper, dispersion mechanism locates the below on transport mechanism top, dispersion mechanism's below is located to the screen cloth, one side of screen cloth is located to hot-blast mechanism, discharge mechanism locates the bottom of screen cloth, the bottom of drying cabinet is located to the gas outlet, the controller respectively with transport mechanism, dispersion mechanism, hot-blast mechanism and discharge mechanism electric connection.

Preferably, the conveying mechanism comprises a driving motor, a transmission belt, a first roller, a feeding belt, a second roller and a partition plate, the driving motor drives the first roller to rotate through the transmission belt, the feeding belt is sleeved on the first roller and the second roller, the partition plate is arranged on the feeding belt, the feeding hopper is arranged above the first roller, the dispersing mechanism is arranged below the second roller, and the driving motor is electrically connected with the controller.

Preferably, the dispersion mechanism includes dispersion motor, third cylinder and dispersion pole, dispersion motor is connected with the third cylinder, the dispersion pole is located on the periphery of third cylinder, is radial distribution for break up the sand material, dispersion motor and controller electric connection.

Preferably, hot-blast mechanism includes heating wire, fan motor and flabellum, fan motor's output shaft and flabellum are connected, the heating wire is located between flabellum and the screen cloth, the heating wire is located on the lateral wall of drying cabinet, heating wire and fan motor all with controller electric connection.

Preferably, discharge mechanism locates the bottom of drying cabinet, including first ejection of compact storehouse, first discharge door, second ejection of compact storehouse, second discharge door and humidity transducer, the below of screen cloth is located to first ejection of compact storehouse for collect dry sand material, one side of first ejection of compact storehouse is located to second ejection of compact storehouse, is used for collecting the sand material that the screen cloth was strained, the bottom of first ejection of compact storehouse is located to first discharge door, the bottom of second ejection of compact storehouse is located to the gas outlet, humidity transducer locates the top of first ejection of compact storehouse, first discharge door and humidity transducer all with controller electric connection.

Preferably, the bottoms of the first discharging bin and the second discharging bin are both obliquely arranged, so that sand can automatically flow out conveniently.

Preferably, discharge mechanism still includes out hopper, weighing machine structure and traction guide rail, the below of first discharge door is located to the play hopper, weighing machine constructs and is used for accepting out the hopper to weigh the weight of getting the sand material, traction guide rail is used for driving out the hopper and transports the sand material, weighing machine constructs and traction guide rail all with controller electric connection.

Preferably, the partition is a rubber material.

Preferably, the bottom end of the feed hopper is provided with a check valve.

Compared with the prior art, the beneficial effects of the utility model are that:

the sand material enters the drying box through the feed hopper, the bottom end of the feed hopper is provided with a check valve which can prevent air from being discharged outwards from the bottom end of the feed hopper to influence feeding, the partition board receives the sand material falling from the feed hopper, the feeding belt drives the sand material to move upwards, the partition board bypasses a second roller, the sand material falls due to gravity, the dispersing rod scatters the sand material to enlarge the area where the sand material falls on the screen mesh, the screening efficiency of the screen mesh can be improved, the sand material meeting the particle size requirement falls from the screen mesh, the hot air blown by the hot air mechanism dries the sand material, the dried sand material falls into a first discharge bin, the sand material not meeting the particle size requirement is guided by the obliquely arranged screen mesh to fall into a second discharge bin, moist air is discharged out of the drying box from an air outlet and can take the sand material out of the second discharge bin, the humidity sensor transmits humidity information to the controller, and the controller adjusts the temperature of the electric heating wire and the rotating speed of the fan, the controller controls the first discharging door to be opened so as to ensure the water content of the sand material, the sand material flows into the discharging hopper, when the weight of the sand material in the discharging hopper reaches a preset value, the controller controls the first discharging door to be closed, and the guide rail is pulled to drive the discharging hopper to convey the sand material along the guide rail; the drying device is safe and reliable, has high drying efficiency, and can effectively avoid cement agglomeration caused by overhigh water content of sand materials, thereby avoiding pipe blockage and pipe explosion; can realize the ration and transport sand material to improve the ratio precision, realize standardized construction.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Description of reference numerals: 1-a drying box, 2-a feed hopper, 3-a drying mechanism, 31-a conveying mechanism, 311-a driving motor, 312-a transmission belt, 313-a first roller, 314-a feeding belt, 315-a second roller, 316-a clapboard, 32-a dispersing mechanism, 321-a third roller, 322-a dispersing rod, 33-a screen, 34-a hot air mechanism, 341-an electric heating wire, 342-a fan motor, 343-a fan blade, 4-a discharging mechanism, 41-a first discharging bin, 42-a first discharging door, 43-a second discharging bin, 44-a humidity sensor, 45-a discharging bin, 46-a weighing mechanism, 47-a traction guide rail, 5-an air outlet and 6-a controller.

Detailed Description

The technical solution provided by the present invention is further explained with reference to the accompanying drawings and embodiments.

Referring to fig. 1, the utility model provides an automatic sand dryer for dry concrete spraying in geotechnical engineering, including a drying cabinet 1, a feed hopper 2, a drying mechanism 3, a discharging mechanism 4, an air outlet 5 and a controller 6 are arranged on the drying cabinet 1, the drying mechanism 3 includes a conveying mechanism 31, a dispersing mechanism 32, a screen 33 and a hot air mechanism 34, the feed hopper 2 is arranged above the bottom end of the conveying mechanism 31, the conveying mechanism 31 is obliquely arranged for receiving the falling sand of the feed hopper 2, the dispersing mechanism 32 is arranged below the top end of the conveying mechanism 31 for scattering the sand, the screen 33 is arranged below the dispersing mechanism 32, the screen 33 is obliquely arranged, the sand meeting the particle size requirement falls on the screen 33 and passes through the screen 33 due to the gravity effect, the sand meeting the particle size requirement is guided by the screen 33 to fall into a second discharging bin, the hot air mechanism 34 is arranged at one side of the screen 33, discharge mechanism 4 locates the bottom of screen cloth 33, and the bottom of drying cabinet 1 is located to gas outlet 5 for discharge moist air, controller 6 respectively with transport mechanism 31, dispersion mechanism 32, hot-blast mechanism 34 and discharge mechanism 4 electric connection.

The bottom of feeder hopper 2 is equipped with the back stop, avoids the air to outwards discharge from the bottom of feed inlet 2, influences reinforced.

The conveying mechanism 31 comprises a driving motor 311, a transmission belt 312, a first roller 313, a feeding belt 314, a second roller 315 and a partition plate 316, the driving motor 311 drives the first roller 313 to rotate through the transmission belt 312, the feeding belt 314 is sleeved on the first roller 313 and the second roller 315, the partition plate 316 is arranged on the feeding belt 314 and is made of rubber materials, damage caused when the partition plate 316 collides with other parts can be avoided, the feeding hopper 2 is arranged above the first roller 313, the dispersing mechanism 32 is arranged below the second roller 315, the driving motor 311 is electrically connected with the controller 6, and the feeding speed of the feeding belt 314 can be adjusted.

The dispersing mechanism 32 comprises a dispersing motor, a third roller 321 and dispersing rods 322, the dispersing motor is connected with the third roller 321, the dispersing rods 322 are arranged on the periphery of the third roller 321 and distributed radially and used for dispersing sand materials, and the dispersing motor is electrically connected with the controller 6 and can adjust the rotating speed of the third roller 321.

The hot air mechanism 34 includes a heating wire 341, a fan motor 342 and a fan blade 343, an output shaft of the fan motor 342 is connected to the fan blade 343, the heating wire 341 is disposed between the fan blade 343 and the screen 33, the heating wire 341 is disposed on a side wall of the drying box 1, and both the heating wire 341 and the fan motor 342 are electrically connected to the controller 6.

The discharging mechanism 4 is arranged at the bottom of the drying box 1 and comprises a first discharging bin 41, a first discharging door 42, a second discharging bin 43, a humidity sensor 44, a discharging hopper 45, a weighing mechanism 46 and a traction guide rail 47, wherein the first discharging bin 41 is arranged below the screen 33 and used for collecting dried sand materials, the second discharging bin 43 is arranged at one side of the first discharging bin 41 and used for collecting the sand materials filtered by the screen 33, the first discharging door 42 is arranged at the bottom end of the first discharging bin 41, the bottoms of the first discharging bin 41 and the second discharging bin 43 are both obliquely arranged so as to facilitate the sand materials to automatically flow out, the gas outlet 5 is arranged at the bottom end of the second discharging bin 43, the humidity sensor 44 is arranged above the first discharging bin 41 and used for detecting the water content of the dried sand materials, the discharging hopper 45 is arranged below the first discharging door 42, the weighing mechanism 46 is used for receiving the discharging hopper 45 and weighing the weight of the sand materials, the traction guide rail 47 is used for driving the discharging hopper 45 to convey the sand materials, first discharge door 42, weighing mechanism 46 and pull guide rail 47 all with controller 6 electric connection, predetermine required weight value through controller 6, first discharge door 42 is opened, and sand material flows into out hopper 45, and when the sand material weight in out hopper 45 reaches the default, controller 6 control first discharge door 42 closes, pulls guide rail 47 drive out hopper 45 and transports sand material along the guide rail.

The utility model discloses a theory of operation:

the controller 6 starts the driving motor 311, the driving motor 311 drives the first roller 313 to rotate anticlockwise through the transmission belt 312, and the first roller 313 drives the second roller 315 and the feeding belt 314 to rotate anticlockwise; the dispersing motor is started, the dispersing motor drives the third roller 321 to rotate, the fan motor 342 is started, the fan blades are driven by the fan motor 342 to rotate, the heating wire 341 starts to heat, and hot air is blown towards the screen 33.

Sand material passes through feeder hopper 2 and gets into drying cabinet 1, and the baffle 316 accepts the sand material that falls from feeder hopper 2, and pay-off area 314 drives sand material upward movement, and baffle 316 bypasses second cylinder 315, and the sand material is because gravity whereabouts, and dispersion pole 322 is broken up the sand material, makes the regional increase on the sand material whereabouts screen cloth 33, can improve screen cloth 33's screening efficiency.

The sand material that accords with the particle diameter requirement falls from screen cloth 33, the hot-blast sand material that blows off of hot-blast mechanism 34 weathers, the sand material after the drying falls into first ejection of compact storehouse 41, the sand material that does not accord with the particle diameter requirement falls into second ejection of compact storehouse 43 by the screen cloth direction that the slope set up, moist air is by gas outlet 5 discharge drying cabinet 1, can take the sand material out from second ejection of compact storehouse 43, humidity transducer 44 transmits humidity information to controller 6, controller 6 adjusts the temperature of heating wire 341 and fan motor 342's rotational speed according to humidity information, in order to guarantee the moisture content of sand material.

Through the sand material weight of the needs of controller 6, controller 6 controls and opens first discharge door 42, and the sand material falls into out hopper 45, and when the sand material weight in play hopper 45 reached the default, controller 6 controls first discharge door 42 and closes, draws guide rail 47 drive play hopper 45 and transports sand material along the guide rail.

The above embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides an automatic desiccator of sand material for geotechnical engineering dry shotcrete concrete, includes drying cabinet (1), its characterized in that: be equipped with feeder hopper (2), stoving mechanism (3), discharge mechanism (4), gas outlet (5) and controller (6) on drying cabinet (1), stoving mechanism (3) are including transport mechanism (31), dispersion mechanism (32), screen cloth (33) and hot-blast mechanism (34), transport mechanism (31) and screen cloth (33) all incline to set up, the top of transport mechanism (31) bottom is located in feeder hopper (2), the below on transport mechanism (31) top is located in dispersion mechanism (32), the below on dispersion mechanism (32) is located in screen cloth (33), one side of screen cloth (33) is located in hot-blast mechanism (34), the bottom of screen cloth (33) is located in discharge mechanism (4), the bottom of drying cabinet (1) is located in gas outlet (5), controller (6) respectively with transport mechanism (31), dispersion mechanism (32), The hot air mechanism (34) is electrically connected with the discharging mechanism (4).

2. The automatic sand dryer for dry shotcrete in geotechnical engineering according to claim 1, wherein: the conveying mechanism (31) comprises a driving motor (311), a transmission belt (312), a first roller (313), a feeding belt (314), a second roller (315) and a partition plate (316), the driving motor (311) drives the first roller (313) to rotate through the transmission belt (312), the feeding belt (314) is sleeved on the first roller (313) and the second roller (315), the partition plate (316) is arranged on the feeding belt (314), the feeding hopper (2) is arranged above the first roller (313), the dispersing mechanism (32) is arranged below the second roller (315), and the driving motor (311) is electrically connected with the controller (6).

3. The automatic sand dryer for dry shotcrete in geotechnical engineering according to claim 1, wherein: the dispersing mechanism (32) comprises a dispersing motor, a third roller (321) and dispersing rods (322), the dispersing motor is connected with the third roller (321), the dispersing rods (322) are arranged on the periphery of the third roller (321) and radially distributed and used for scattering sand materials, and the dispersing motor is electrically connected with the controller (6).

4. The automatic sand dryer for dry shotcrete in geotechnical engineering according to claim 1, wherein: the hot air mechanism (34) comprises a heating wire (341), a fan motor (342) and fan blades (343), an output shaft of the fan motor (342) is connected with the fan blades (343), the heating wire (341) is arranged between the fan blades (343) and the screen (33), the heating wire (341) is arranged on the side wall of the drying box (1), and the heating wire (341) and the fan motor (342) are both electrically connected with the controller (6).

5. The automatic sand dryer for dry shotcrete in geotechnical engineering according to claim 1, wherein: the bottom of drying cabinet (1) is located in discharge mechanism (4), including first ejection of compact storehouse (41), first discharge door (42), second ejection of compact storehouse (43) and humidity transducer (44), the below of screen cloth (33) is located in first ejection of compact storehouse (41) for collect dry sand material, one side of first ejection of compact storehouse (41) is located in second ejection of compact storehouse (43), be used for collecting the sand material that screen cloth (33) strained, the bottom of first ejection of compact storehouse (41) is located in first discharge door (42), the bottom of second ejection of compact storehouse (43) is located in gas outlet (5), the top of first ejection of compact storehouse (41) is located in humidity transducer (44), first ejection of compact door (42) and humidity transducer (44) all with controller (6) electric connection.

6. The automatic sand dryer for dry shotcrete in geotechnical engineering according to claim 5, wherein: the bottom of the first discharging bin (41) and the bottom of the second discharging bin (43) are both obliquely arranged, so that sand can automatically flow out conveniently.

7. The automatic sand dryer for dry shotcrete in geotechnical engineering according to claim 6, wherein: discharge mechanism (4) still include ejection of compact fill (45), weighing mechanism (46) and pull guide rail (47), the below of first discharge door (42) is located in ejection of compact fill (45), weighing mechanism (46) are used for accepting ejection of compact fill (45) to call the weight of getting the sand material, it is used for driving ejection of compact fill (45) to pull guide rail (47) and transports the sand material, weighing mechanism (46) and pull guide rail (47) all with controller (6) electric connection.

8. The automatic sand dryer for dry shotcrete in geotechnical engineering according to claim 2, wherein: the partition (316) is made of rubber material.

9. The automatic sand dryer for dry shotcrete in geotechnical engineering according to claim 1, wherein: the bottom of feeder hopper (2) is equipped with the back stop.