Vibration drum sand screening equipment

Abstract

The utility model discloses vibrating drum sand screening equipment. Comprising a roller, a protective cover, a driving device and bearing driving wheels, the roller is obliquely arranged in the protective cover downwards from the feeding end to the discharging end, the driving device is arranged at one end of the bottom of the roller, the bearing driving wheels are arranged at the bottom of the roller at intervals, every two adjacent bearing driving wheels are connected through a transmission shaft, and the transmission shafts are connected with the driving device. The drum wall of the front half section of the drum is a fine screen, the drum wall of the rear half section of the drum is a coarse screen, a feed hopper is mounted at the front end of the protective cover, an impurity outlet is formed in the tail end of the protective cover, and the feed hopper and the impurity outlet are both communicated with the drum. Through rotation and vibration of the equipment, dredged materials enter from the feeding hopper and are subjected to dehydration and desliming treatment through the fine screen roller section, medium-coarse sand with good grading can be screened from the coarse screen roller section, the medium-coarse sand can be directly used for engineering construction, impurities such as large stones in the dredged materials can also be sorted out, and the quality of sorted materials is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to dredging technology field of navigation engineering, concretely related to a vibrating drum sand screening equipment. BACKGROUND

[0002] Dredged material is widely used in land reclamation, coastline restoration, wetland restoration, construction materials and environmental restoration. After proper treatment, dredged material can be used as a filling material for land reclamation or urban expansion, helping to increase the available land area; at the same time, it is also used for beach and wetland ecological restoration, preventing coastal erosion and promoting plant growth. In addition, dredged material can replace part of natural sand in the construction industry for concrete and roadbed construction, reducing dependence on natural resources and realizing resource recycling.

[0003] Due to geological formation, the particle composition of common dredged material is very complex, such as a large amount of silt. After backfilling to a specific area, foundation treatment can be carried out to form a relatively stable foundation as a construction site for port terminals or roads. However, the silt foundation reinforcement treatment period is long, and environmental pollution is easily caused during dredging and backfilling.

[0004] Many areas contain a large amount of medium sand, but it is mixed in alternating layers of silt or clay. Conventional dredging equipment is difficult to separate it, and dredged material can only be blown ashore or thrown out as a whole, which cannot fully utilize medium and coarse sand, causing unnecessary economic loss.

[0005] There are also many river dredging, due to the river valley under the action of water flow for many years, fine particles and coarse particles are distributed alternately, because of the need for construction, often need to use these dredging materials. However, the fine particles and water content of dredging material are very high, and the whole transportation on shore will increase the transportation and processing cost, which is not economical. If it is thrown out as a whole, the transportation cost is also high due to the long river.

[0006] In summary, a vibrating drum sand screening equipment is proposed. Utility model content

[0007] In order to solve the above technical problems, the purpose of the utility model is to provide a vibrating drum sand screening equipment.

[0008] The purpose of the utility model is achieved by the following technical solutions.

[0009] The utility model provides a kind of vibrating cylinder sand screening equipment, including cylinder, protective cover, driving device and support driving wheel, the cylinder is obliquely downwardly inclined from feed end to discharge end and is arranged in protective cover, driving device is arranged at the bottom of the cylinder one end, support driving wheel is arranged at the bottom of the cylinder interval, two support driving wheels adjacent are connected by transmission shaft, the transmission shaft is connected driving device, the cylinder front half section's cylinder wall is fine screen, the cylinder wall of latter half section is coarse screen, feed hopper is installed at the front end of the protective cover, impurity outlet is arranged at the tail end of the protective cover, the feed hopper and impurity outlet are communicated with cylinder.

[0010] In the above technical solution, the first discharge hopper is arranged at the bottom of the front half section of the cylinder and is downwardly opened, and the second discharge hopper is arranged at the bottom of the latter half section of the cylinder and is downwardly opened.

[0011] In the above technical solution, the driving device includes a driving motor and a speed reducer, the driving motor is connected to the speed reducer, and the speed reducer is connected to the rotating shaft.

[0012] In the above technical solution, the first pedestal, the second pedestal and the third pedestal are sequentially and intervaliy installed at the bottom of the protective cover, and the support driving wheels are installed on the first pedestal, the second pedestal and the third pedestal to provide support for the entire equipment.

[0013] In the above technical solution, the second pedestal is located between the first discharge hopper and the second discharge hopper.

[0014] In the above technical solution, the heights of the first pedestal, the second pedestal and the third pedestal gradually decrease, so that the cylinder is obliquely downwardly inclined from the feed hopper to the impurity outlet.

[0015] In the above technical solution, the driving device is installed on the first pedestal or the third pedestal.

[0016] In the above technical solution, the support driving wheel is of eccentric structure.

[0017] In the above technical solution, helical guide vanes are arranged on the inner wall of the cylinder.

[0018] In the above technical solution, the feed hopper is installed in a support frame, the support frame is installed at the front end of the protective cover, and the bottom of the support frame is installed on the first pedestal through a fixed support.

[0019] The utility model has the advantages and beneficial effects that:

[0020] The device can be used in the dredging process of sand material, after the dredging material passes through the device, through self-rotation and vibration of the device, the dredging material enters from the feeding hopper, and dehydration and desilting treatment of the dredging material is carried out through the fine screen drum section, the medium-coarse sand with good gradation can be screened from the coarse screen drum section, the medium-coarse sand can be directly used for engineering construction, and impurities such as large stones in the dredging material can also be sorted out, and the quality of the sorted material is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 It is a schematic view of the overall structure of the device of the utility model.

[0022] Fig. 2 It is a schematic view of the structure of the utility model.

[0023] Fig. 3 It is a schematic view of the structure of the utility model.

[0024] Among them, 1: protective cover, 2: fine screen drum section, 3: coarse screen drum section, 4: first discharge hopper, 5: second discharge hopper, 6: driving motor, 7: speed reducer, 8: bearing driving wheel, 9: fixed support, 10: first pedestal, 11: second pedestal, 12: third pedestal, 13: feeding hopper, 14: impurity outlet, 15: guide vane, 16: support frame, 17: transmission shaft. DETAILED DESCRIPTION

[0025] The technical scheme of the utility model will be further explained in combination with specific embodiments.

[0026] For example, the device can be used in the dredging process of sand material, after the dredging material passes through the device, through self-rotation and vibration of the device, the dredging material enters from the feeding hopper, and dehydration and desilting treatment of the dredging material is carried out through the fine screen drum section, the medium-coarse sand with good gradation can be screened from the coarse screen drum section, the medium-coarse sand can be directly used for engineering construction, and impurities such as large stones in the dredging material can also be sorted out, and the quality of the sorted material is ensured. Figs. 1-3As shown, a vibrating drum sand screening device comprises a protective cover 1, a drum, a first discharge hopper 4, a second discharge hopper 5, a driving device and a bearing driving wheel 8 (rubber material), the drum is arranged in the protective cover 1, first, second and third pedestals 10, 11 and 12 are arranged at intervals at the bottom of the protective cover 1, the first pedestal 10 is arranged at the front end of the bottom of the protective cover 1, the second pedestal 11 is arranged at the middle position of the bottom of the protective cover 1, and the third pedestal 12 is arranged at the tail end of the bottom of the protective cover 1; the heights of the first, second and third pedestals 10, 11 and 12 gradually decrease, so that the drum is inclined downward from the feeding end to the discharging end; the bearing driving wheels 8 are arranged on the first, second and third pedestals 10, 11 and 12 respectively, the bearing driving wheels 8 are arranged at the bottom of the drum, adjacent two bearing driving wheels 8 are connected through a transmission shaft 17, the driving device is arranged on the first pedestal 10 or the third pedestal, and is used for driving the drum to rotate; specifically, the driving device comprises a driving motor 6 and a speed reducer 7 which is in transmission connection with the driving motor 6, the speed reducer 7 is connected with the transmission shaft 14, the bearing driving wheels 8 are driven to rotate through the transmission shaft 14, so that the drum is driven to rotate; a feeding hopper 13 is arranged at the front end of the protective cover 1, and an impurity outlet 14 is arranged at the tail end of the protective cover 1; the feeding hopper 13 is in communication with the front end of the drum, and the impurity outlet 14 is in communication with the tail end of the drum; the drum is divided into two sections, the front half section is a fine mesh drum section 2, and the rear half section is a coarse mesh drum section 3; the drum wall of the fine mesh drum section 2 is a fine mesh, and the drum wall of the coarse mesh drum section 3 is a coarse mesh; the fine mesh drum section 2 is used for screening water and fine mud, the coarse mesh drum section 3 is used for screening medium and coarse sand, and larger stones and other impurities are pushed out through the impurity outlet 14; spiral guide vanes 15 are arranged on the inner wall of the drum, and sand continuously flows along the guide vanes 15 in the drum from the feeding end to the discharging end; the first discharge hopper 4 is arranged at the bottom of the fine mesh drum section 2 and is in communication with the protective cover 1, and is used for receiving water and mud screened by the fine mesh drum section 2; and the second discharge hopper 5 is arranged at the bottom of the coarse mesh drum section 3 and is in communication with the protective cover 1, and is used for receiving medium and coarse sand screened by the coarse mesh drum section 3.

[0027] Further, the bearing driving wheels 8 are eccentric structures, so that the drum vibrates in the process of rotating, and the feeding is more convenient.

[0028] In the embodiment, the feeding hopper 13 is arranged in a support frame 16, the support frame 16 is arranged at the front end of the protective cover 1, and the bottom of the support frame 16 is arranged on the first pedestal 10 through a fixed support 9.

[0029] The working process of the utility model is as follows:

[0030] The device of the utility model is placed (for example on a barge), the device is started, the roller rotates, the dredged material is poured into the feeding hopper 13, the dredged material flows in the roller along the guide vane 15, when the dredged material passes through the fine mesh roller section 2, the water and fine particles (fine mud) are separated and discharged from the first discharge hopper 4, when the dredged material passes through the coarse mesh roller section 3, under the action of vibration and centrifugal force, coarse particles are separated and discharged from the second discharge hopper 5, the coarse particles have low water content, and large stones and impurities that are not separated are continuously pushed out from the impurity outlet 14.

[0031] For ease of explanation, spatially relative terms such as "upper", "lower", "left", "right", and the like, are used in the embodiments to describe one element's or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation, in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or oriented in other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0032] Moreover, terms such as "first" and "second" are used only to differentiate one component from another, and do not necessarily require or imply any such actual relationship or order between or among the components.

[0033] The above has been an exemplary description of the utility model, it should be explained that, without departing from the core of the utility model, any simple deformation, modification or other equivalent replacement of the person skilled in the art can not spend the protection scope of the utility model falls into the utility model without creative labor.

Claims

1. A vibratory drum sand screening apparatus, characterized by, The device comprises a drum, a protective cover, a driving device and supporting driving wheels, the drum is obliquely downwardly arranged in the protective cover from a feeding end to a discharging end, the driving device is arranged at one end of the bottom of the drum, the supporting driving wheels are arranged at intervals at the bottom of the drum, two adjacent supporting driving wheels are connected through a transmission shaft, the transmission shaft is connected with the driving device, the drum wall of the front half of the drum is a fine screen, the drum wall of the rear half of the drum is a coarse screen, a feeding hopper is arranged at the front end of the protective cover, and an impurity outlet is arranged at the tail end of the protective cover, and the feeding hopper and the impurity outlet are communicated with the drum.

2. The vibratory drum sand screening apparatus of claim 1, wherein, A first downwardly-opening discharging hopper is arranged at the bottom of the front half of the drum and communicated with the protective cover, and a second downwardly-opening discharging hopper is arranged at the bottom of the rear half of the drum and communicated with the protective cover.

3. The vibratory drum sand screening apparatus of claim 1, wherein, The driving device comprises a driving motor and a speed reducer, the driving motor is connected with the speed reducer, and the speed reducer is connected with a rotating shaft.

4. The vibratory drum sand screening apparatus of claim 1, wherein, First, second and third pedestals are arranged at intervals at the bottom of the protective cover, and the supporting driving wheels are arranged on the first, second and third pedestals to provide support for the whole device.

5. The vibratory drum sand screening apparatus of claim 4, wherein, The second pedestal is located between the first and second discharging hoppers.

6. The vibratory drum sand screening apparatus of claim 5, wherein, The heights of the first, second and third pedestals gradually decrease so that the drum is obliquely downwardly inclined from the feeding hopper to the impurity outlet.

7. The vibratory drum sand screening apparatus of claim 4, wherein, The driving device is arranged on the first pedestal or the third pedestal.

8. The vibratory drum sand screening apparatus of claim 4, wherein, The supporting driving wheels are eccentric structures.

9. The vibratory drum sand screening apparatus of claim 1, wherein, Spiral guide vanes are arranged on the inner wall of the drum.

10. The vibratory drum sand screening apparatus of claim 1, wherein, The feeding hopper is arranged in a supporting frame, the supporting frame is arranged at the front end of the protective cover, and the bottom of the supporting frame is arranged on the first pedestal through a fixing support.

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