Sand screening device for constructional engineering
By designing a sand screening device with rotation and agitation functions, the problems of low sand screening efficiency and condensation and blockage of sand particles in the prior art are solved, and efficient sand screening and drying effects are achieved.
Patent Information
- Application Number
- CN202421166903.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-05-27
AI Technical Summary
The existing construction civil engineering sand screening device uses gravity to screen sand, which is relatively low in efficiency, and the sand particles condense into a mass and are likely to block the screen.
A sand screening device including a rotating unit, agitating unit and an inlet and outlet unit is designed. The rotating shaft and agitating unit are driven to rotate simultaneously by a transmission belt, and the stirring rod stirs and screens the sand particles, and use an air-drying device to break and dry the condensed sand balls when needed.
It improves the efficiency of sand sieving, can effectively disperse and dry the condensed sand sieving into clumps, reduces the risk of blockage, and improves the convenience of screening work.
Smart Images
Figure CN222535433U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of construction engineering, in particular to a sand screening device for construction engineering. Background Art
[0002] Construction sand screening equipment is very common in the construction field. It is generally automatic mechanical equipment or manual sand screening. Manual sand screening has low efficiency. Mechanical sand screening is generally vibrating sand screening equipment. An inclined or horizontal screen is set to pour sand onto the screen, and the screening is achieved with the vibration effect. However, the existing sand screening machine does not have the function of classifying the mixed sand.
[0003] For example, Chinese patent announcement No. CN215088845U discloses a sand screening device for screening sand in construction and civil engineering. When in use, a funnel is arranged on the top of the main body, a first sand outlet plate is arranged on one side of the main body, a second sand outlet plate is arranged on the other side of the main body, a spring plate mechanism is arranged inside the main body, and a closing mechanism is arranged on one side of the main body. When it is necessary to deal with impurities on the screen, first turn the crank to make it turn out from the inside of the connecting hole, and then pull the connecting plate downward to make the connecting plate drive the vertical rod to slide downward inside the slide groove, and at this time the connecting plate also drives the screen to slide downward. , and the first spring is in a compressed state, and then the connecting plate is loosened, the elastic force of the first spring causes the connecting plate to drive the screen and the vertical rod to slide upward, and this step is performed multiple times, so that the impurities stuck on the screen can be easily cleaned. The device is convenient for cleaning impurities on the screen. When it is necessary to remove impurities inside the main body, first pull the slider to slide one side of the slider into the interior of the sleeve. At this time, the second spring is compressed, and the slide bar is disengaged from one side of the rotating plate. Then, the handle is pulled to disengage the rotating plate from the inside of the connecting groove. At this time, the impurities inside the main body can be removed. The device is convenient for removing impurities inside the main body.
[0004] However, the sand screening device used for screening sand in construction and civil engineering in the above application uses gravity to screen the sand, which is relatively inefficient. In addition, since the sand particles may condense into agglomerates, it is easy to clog the screen. Therefore, there are certain limitations.
[0005] For this reason, we urgently need to provide a kind of construction engineering sand screening device. Utility Model Content
[0006] The purpose of the utility model is to provide a sand screening device for construction engineering, so as to solve the problem that the sand screening device for construction engineering proposed in the above-mentioned background technology uses gravity to screen sand, which is relatively inefficient and has a certain possibility of condensing into agglomerates, which is more likely to clog the screen.
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a sand screening device for construction engineering, comprising a base and a screening box, the screening box being fixedly connected to the top of the base, a sand screening device being arranged inside the screening box, and an air drying device being arranged on the top of the screening box.
[0008] The sand screening device comprises a rotating unit, a stirring unit and a feeding and discharging unit.
[0009] The rotating unit includes a driving motor, a rotating shaft, a bearing, and a rotating shaft. The driving motor is installed at the right rear end of the base, and the left end of the rotating shaft is connected to the output end of the driving motor. The two bearings are respectively installed at the center of the left and right outer surfaces of the screening box, and the two ends of the rotating shaft are respectively rotatably connected to the inside of the two bearings.
[0010] A further improvement is that belt grooves are respectively opened at the right ends of the outer surfaces of the rotating shaft and the rotating shaft, and the front and rear ends of the transmission belt are respectively rotatably connected to the inside of the belt grooves, so that the rotating shaft and the rotating shaft are driven to rotate synchronously through the transmission belt, thereby driving the stirring unit to rotate to screen the sand.
[0011] A further improvement is that the stirring unit includes a screening net, a ring sleeve, and a stirring rod. The screening net is installed obliquely inside the screening box. The two ring sleeves are fixedly connected to the left and right sides of the outer surface of the rotating shaft respectively. The two groups of stirring rods are fixedly connected to the outer surfaces of the two ring sleeves in a ring shape. When the rotating shaft rotates, the ring sleeves and the stirring rods on their outer surfaces are driven to rotate, thereby stirring and screening the sand inside the screening net.
[0012] A further improvement is that the feed and discharge unit includes a feed hopper, a discharge pipe, and a discharge port, the feed hopper is fixedly connected to the left outer surface of the screening box, and sand is introduced into the interior of the screening net through the feed hopper, and the discharge pipe is fixedly connected to the right outer surface of the screening box, wherein large particles of sand roll from left to right inside the screening net and fall from the discharge pipe, and the discharge port is opened at the bottom of the screening box, and small particles of sand pass through the screening net and fall from the discharge port, thereby achieving screening of sand size.
[0013] A further improvement is that the air-drying device includes a heating unit and an air-drying unit.
[0014] The heating unit includes a blower, a blowing pipe, a heating box, and an electric heating rod. The blower is installed on the top left side of the screening box, the left end of the blowing pipe is fixedly connected to the air outlet of the blower, the heating box is fixedly connected to the top middle part of the screening box, the electric heating rod is installed inside the heating box, and the right end of the blowing pipe extends into the interior of the heating box. The air inside the heating box is heated by the electric heating rod, and the hot air is blown to the interior of the air drying unit in conjunction with the blowing pipe.
[0015] A further improvement is that the air-drying unit includes a connecting pipe, an air branch pipe, and a drying hood. The connecting pipe is fixedly connected to the bottom of the heating box, and its bottom extends into the interior of the screening box. The air branch pipe is fixedly connected to the bottom of the connecting pipe. Four drying hoods are horizontally and equidistantly fixed to the bottom of the air branch pipe. When the sand is relatively moist, the heating unit blows hot air to the connecting pipe, and transmits it to the drying hood at the bottom of the air branch pipe for discharge. The stirring rod is used to break up the sand clumps that have been condensed and dry them.
[0016] A further improvement is that an observation door is hinged on the front of the screening box, and handles are fixedly connected to the left and right sides of the front of the observation door. When it is necessary to inspect the inside of the screening box, the handles are pulled to open the observation door, thereby facilitating entry into the interior of the screening box for maintenance and inspection.
[0017] Compared with the prior art, the beneficial effects of the utility model are:
[0018] 1. The sand screening device for construction projects drives the rotating shaft and the rotating shaft to rotate synchronously through a transmission belt, thereby driving the ring sleeve in the stirring unit and the stirring on its outer surface to rotate, thereby stirring and screening the sand inside the screening net, and breaking up the condensed sand clumps, making it easier to carry out the screening work.
[0019] 2. The sand screening device used in this construction project, when the sand to be screened is relatively moist, start the blower to blow the high-temperature air inside the heating box to the drying hood at the bottom of the air distribution pipe and blow it out, cooperate with the stirring rod to break up the condensed sand clumps and dry them. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a front view structural schematic diagram of the utility model;
[0021] Figure 2 It is a rear view structural schematic diagram of the utility model;
[0022] Figure 3 This is a schematic diagram of the front cross-sectional structure of the screening box of the utility model;
[0023] Figure 4 This is a schematic diagram of the independent structure of the stirring unit of the utility model;
[0024] Figure 5 It is a schematic cross-sectional structure diagram of the air-drying device of the utility model.
[0025] In the figure: 1. base; 2. screening box; 301. driving motor; 302. rotating shaft; 303. bearing; 304. rotating shaft; 305. transmission belt; 306. screening net; 307. ring sleeve; 308. stirring rod; 309. feeding hopper; 310. discharging pipe; 311. discharging port; 401. blower; 402. blowing pipe; 403. heating box; 404. electric heating rod; 405. connecting pipe; 406. air distribution pipe; 407. drying hood; 501. observation door; 502. handle. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] See also Figure 1-Figure 5 , the utility model provides a technical solution: Embodiment 1
[0028] A sand screening device for construction engineering comprises a base 1 and a screening box 2. The screening box 2 is fixedly connected to the top of the base 1, and the interior of the screening box 2 is provided with a sand screening device.
[0029] The sand screening device comprises a rotating unit, a stirring unit and a feeding and discharging unit.
[0030] The rotating unit includes a driving motor 301, a rotating shaft 302, a bearing 303, and a rotating shaft 304. The driving motor 301 is installed at the right rear end of the base 1, the left end of the rotating shaft 302 is connected to the output end of the driving motor 301, and the two bearings 303 are respectively installed at the center of the left and right outer surfaces of the screening box 2, and the two ends of the rotating shaft 304 are respectively rotatably connected to the inside of the two bearings 303.
[0031] Belt grooves are respectively provided at the right ends of the outer surfaces of the rotating shaft 302 and the rotating shaft 304, and the front and rear ends of the transmission belt 305 are respectively rotatably connected to the inside of the belt grooves. The transmission belt 305 drives the rotating shaft 304 and the rotating shaft 302 to rotate synchronously, thereby driving the stirring unit to rotate and screen the sand.
[0032] The stirring unit includes a screening net 306, a ring sleeve 307, and a stirring rod 308. The screening net 306 is installed obliquely inside the screening box 2. Two ring sleeves 307 are fixedly connected to the left and right sides of the outer surface of the rotating shaft 304 respectively. Two groups of stirring rods 308 are respectively fixedly connected to the outer surfaces of the two ring sleeves 307 in a ring shape. When the rotating shaft 304 rotates, the ring sleeves 307 and the stirring rods 308 on their outer surfaces are driven to rotate, thereby stirring and screening the sand inside the screening net 306.
[0033] The feed and discharge unit includes a feed hopper 309, a discharge pipe 310, and a discharge port 311. The feed hopper 309 is fixedly connected to the left outer surface of the screening box 2. Sand is introduced into the interior of the screening net 306 through the feed hopper 309. The discharge pipe 310 is fixedly connected to the right outer surface of the screening box 2. Large particles of sand roll from left to right inside the screening net 306 and fall from the discharge pipe 310. The discharge port 311 is opened at the bottom of the screening box 2, and small particles of sand pass through the screening net 306 and fall from the discharge port 311, thereby realizing screening of sand size.
[0034] An observation door 501 is hinged on the front of the screening box 2, and handles 502 are fixedly connected to the left and right sides of the front of the observation door 501. When it is necessary to inspect the inside of the screening box 2, pull the handle 502 to open the observation door 501, thereby facilitating entry into the interior of the screening box 2 for maintenance and inspection.
[0035] When in use, sand is first introduced into the interior of the screening net 306 through the feed hopper 309, and then the drive motor 301 is started to drive the rotating shaft 302 at its right end to rotate, thereby driving the transmission belt 305 to rotate, because the rotating shaft 304 is rotatably connected to the other end of the transmission belt 305, thereby driving the rotating shaft 304 to rotate inside the bearing, thereby driving the ring sleeve 307 on the rotating shaft 304 and the stirring rod 308 on its outer surface to rotate, thereby stirring and screening the sand inside the screening net 306, wherein smaller sand particles pass through the screening net 306 and fall from the discharge port 311, while large sand particles fall from the discharge pipe 310 on the right, thereby completing the size screening of the sand particles. Embodiment 2
[0036] On the basis of the first embodiment, an air drying device is arranged on the top of the screening box 2, and the air drying device includes a heating unit and an air drying unit.
[0037] The heating unit includes a blower 401, a blowing pipe 402, a heating box 403, and an electric heating rod 404. The blower 401 is installed on the top left side of the screening box 2, the left end of the blowing pipe 402 is fixedly connected to the air outlet of the blower 401, the heating box 403 is fixedly connected to the top middle of the screening box 2, the electric heating rod 404 is installed inside the heating box 403, and the right end of the blowing pipe 402 extends into the interior of the heating box 403. The air inside the heating box 403 is heated by the electric heating rod 404, and the hot air is blown to the interior of the air drying unit in cooperation with the blowing pipe 402.
[0038] The air drying unit includes a connecting pipe 405, a branch air pipe 406, and a drying hood 407. The connecting pipe 405 is fixedly connected to the bottom of the heating box 403, and its bottom extends into the interior of the screening box 2. The branch air pipe 406 is fixedly connected to the bottom of the connecting pipe 405, and four drying hoods 407 are fixedly connected to the bottom of the branch air pipe 406 at equal intervals horizontally.
[0039] When the sand is relatively moist, start the blower 401 to blow the air into the interior of the heating box 403 through the blowing pipe 402. At the same time, start the electric heating rod 404 to heat the air inside the heating box 403. The hot air inside the heating box 403 is blown to the connecting pipe 405 and transmitted to the drying hood 407 at the bottom of the air distribution pipe 406 for discharge. The stirring rod 308 is used to break up the sand clumps that have condensed into blocks and dry them.
[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.
Claims
1. A sand screening device for construction engineering, comprising a base (1) and a screening box (2), wherein the screening box (2) is fixedly connected to the top of the base (1), characterized in that: A sand screening device is provided inside the screening box (2), and an air drying device is provided on the top of the screening box (2); The sand screening device comprises a rotating unit, a stirring unit and a feeding and discharging unit; The rotating unit comprises a driving motor (301), a rotating shaft (302), a bearing (303), and a rotating shaft (304); the driving motor (301) is mounted on the right rear end of the base (1); the left end of the rotating shaft (302) is connected to the output end of the driving motor (301); the two bearings (303) are respectively mounted on the center of the left and right outer surfaces of the screening box (2); and the two ends of the rotating shaft (304) are respectively rotatably connected to the inside of the two bearings (303).
2. A sand screening device for construction engineering according to claim 1, characterized in that: The right ends of the outer surfaces of the rotating shaft (302) and the rotary shaft (304) are respectively provided with belt grooves, and the front and rear ends of the transmission belt (305) are respectively rotatably connected to the inside of the belt grooves.
3. A sand screening device for construction engineering according to claim 2, characterized in that: The stirring unit comprises a screening net (306), a ring sleeve (307), and a stirring rod (308); the screening net (306) is installed obliquely inside the screening box (2); two ring sleeves (307) are respectively fixedly connected to the left and right sides of the outer surface of the rotating shaft (304); and two groups of stirring rods (308) are respectively fixedly connected to the outer surfaces of the two ring sleeves (307) in a ring shape.
4. A sand screening device for construction engineering according to claim 3, characterized in that: The feed and discharge unit comprises a feed hopper (309), a discharge pipe (310), and a discharge port (311); the feed hopper (309) is fixedly connected to the left outer surface of the screening box (2); the discharge pipe (310) is fixedly connected to the right outer surface of the screening box (2); and the discharge port (311) is opened at the bottom of the screening box (2).
5. A sand screening device for construction engineering according to claim 4, characterized in that: The air-drying device comprises a heating unit and an air-drying unit; The heating unit comprises a blower (401), a blowing pipe (402), a heating box (403), and an electric heating rod (404); the blower (401) is installed on the left side of the top of the screening box (2); the left end of the blowing pipe (402) is fixedly connected to the air outlet of the blower (401); the heating box (403) is fixedly connected to the middle of the top of the screening box (2); the electric heating rod (404) is installed inside the heating box (403); and the right end of the blowing pipe (402) extends into the interior of the heating box (403).
6. A sand screening device for construction engineering according to claim 5, characterized in that: The air drying unit comprises a connecting pipe (405), an air distribution pipe (406), and a drying hood (407); the connecting pipe (405) is fixedly connected to the bottom of the heating box (403), and its bottom extends into the interior of the screening box (2); the air distribution pipe (406) is fixedly connected to the bottom of the connecting pipe (405); and four drying hoods (407) are fixedly connected to the bottom of the air distribution pipe (406) at equal intervals horizontally.
7. A sand screening device for construction engineering according to claim 6, characterized in that: An observation door (501) is hingedly connected to the front of the screening box (2), and handles (502) are fixedly connected to the left and right sides of the front of the observation door (501), respectively.