Sand screening device for earth-rock engineering construction

Abstract

The utility model relates to a sand screening device for construction, in particular to a sand screening device for earth-rock engineering construction, which comprises a sand screening component. The sand screening assembly comprises a base, a buffering element, a connecting base, a discharging pipe, a box body, a control module, a feeding hopper, a dust suction cover, a mounting shell, a driving motor, a discharging pipe, a vibration motor, a supporting plate, a dust collection box, a box door, a connecting pipe, a vacuum pump, a separation frame, a crushing roller, a gear, a screen and a filter bag, the separation frame is installed on the inner wall of the box body through bolts, and three material openings are formed in the outer wall of one side of the separation frame; one ends of the three screens are mounted on the outer wall of one side of the separation frame through bolts; when the sand screening device is used for screening sand, the number of the screen meshes in the device is three, the mesh diameters are directly reduced from top to bottom, during sand screening, waste materials can be continuously separated through the design of the three screen meshes, the sand and the waste materials are screened out as much as possible, and the utilization rate of the waste materials is improved.

Description

Technical Field

[0001] This utility model relates to a sand screening device for construction, specifically a sand screening device for earthwork engineering construction, belonging to the field of earthwork engineering construction technology. Background Technology

[0002] Earthwork engineering is a type of civil engineering, including site leveling, excavation of foundation pits (trenches) and pipe trenches, roadbed excavation, civil defense engineering excavation, ground filling, roadbed filling and foundation pit backfilling. Currently, sand screening devices are used in earthwork engineering construction. Sand screening devices are quite common at earthwork engineering construction sites and are responsible for screening and separating sand from waste materials.

[0003] Chinese Patent No. CN202321682621.3 discloses a sand screening device for earthwork construction, including a base, a support rod fixedly installed on the top of the base, a side plate placed on one side of the top of the support rod, and a support platform placed at the bottom of the side plate; a drive motor is fixedly installed on the side of the support rod facing away from the side plate, and a support platform is fixedly installed at one end of the drive shaft of the drive motor. This utility model, by setting up a push rod motor, a support platform, and a hinge, allows the sand screening device used in earthwork construction to, during the use of the sand screening device, after each batch of material is screened, extend and retract the drive shaft of the push rod motor, causing the side plate to swing around the hinge platform, and the screen cylinder to vertically pour out a large amount of waste material. This adjustable screen cylinder angle design reduces the burden of subsequent waste removal and makes waste cleaning more efficient.

[0004] However, while the above examples reduce the difficulty of waste disposal, most sand screening devices can only perform initial screening of waste, resulting in low utilization of waste.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a sand screening device for earthwork construction in order to solve the above-mentioned problems.

[0007] This utility model achieves the above-mentioned objectives through the following technical solution: a sand screening device for earthwork construction, comprising a sand screening assembly, wherein the sand screening assembly includes a base, a buffer element, a connecting seat, a discharge pipe, a box, a control module, a feed hopper, a dust suction hood, a mounting shell, a drive motor, a discharge pipe, a vibration motor, a support plate, a dust collection box, a box door, a connecting pipe, a vacuum pump, a separator frame, a crushing roller, gears, screens, and filter bags. The separator frame is bolted to the inner wall of the box, and three material inlets are provided on one side of the outer wall of the separator frame. One end of each of the three screens is bolted to the outer wall of the separator frame, and the other end of each of the three screens is bolted to the inner wall of the box. The three screens are arranged in an upper and lower structure according to their mesh diameter.

[0008] Furthermore, one end of the discharge pipe is bolted to the outer wall of the box, and one end of the discharge pipe is bolted to the outer wall of the box, with the discharge pipe extending into the interior of the partition frame.

[0009] Furthermore, the bottom ends of the six buffer elements are bolted to the outer walls on both sides of the top of the base, and the six connecting seats are bolted to the top of the six buffer elements respectively.

[0010] Furthermore, the feed hopper is bolted to the outer wall of the top side of the box, and the dust suction hood is bolted to the outer wall of the top side of the box, with the dust suction hood and the box being interconnected.

[0011] Furthermore, the control module is bolted to the outer wall of one side of the housing, the vibration motor is bolted to the outer wall of the bottom side of the housing, the mounting shell is bolted to the outer wall of one side of the housing, and the gear is located inside the mounting shell.

[0012] Furthermore, the six crushing rollers are installed in pairs inside the housing, the six gears are installed at one end of the crushing rollers via flat keys, and adjacent gears mesh with each other. The three drive motors are installed on the outer wall of one side of the housing via bolts, and the output ends of the three drive motors are fixedly connected to one end of three of the crushing rollers via flat keys.

[0013] Furthermore, the support plate is bolted to the outer wall of one side of the box, the dust collection box is bolted to the outer wall of the top of the support plate, and the box door is hinged to the outer wall of one side of the box.

[0014] Furthermore, the bottom end of the connecting pipe is inserted into the dust collection box, the top end of the connecting pipe extends into the dust collection hood, and the top end of the filter bag is threaded to the bottom end of the connecting pipe.

[0015] The technical effects and advantages of this utility model are as follows: (1) When using this device to screen sand, there are three screens in the device, and the screen diameter decreases directly from top to bottom. When screening sand, the design of the three screens can continuously separate the waste, and screen out the sand and waste as much as possible, thereby improving the utilization rate of the waste; (2) With the setting of the drive motor, crushing roller and gear, when screening sand, the material that is not screened on the screen will flow to the feed port due to vibration. The subsequent material will flow into the separator through the feed port. Subsequently, due to the start of the drive motor and the mutual transmission of the two gears, the two adjacent crushing rollers will move towards each other, thereby realizing the separation of the waste. The large particles in the material are crushed, and the crushed material will flow out through the discharge pipe. Since the fineness of the crushed material is reduced, it can be used in conjunction with sand to continue to participate in the construction of earthwork project; (3) By setting up dust collection box, vacuum pump and filter bag, when the device screens the waste sand, the vacuum pump can be started. The vacuum pump started later will vacuum the dust collection box. Then, because the dust collection box is in a negative pressure state, the dust collection box will adsorb the sand particles raised inside the box through the connecting pipe and dust suction hood, avoiding the problem of dust spreading around the device when screening sand. In addition, the filter bag can collect sand particles in this process, which enhances the utilization rate of resources. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the box structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the box structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the dust collection box structure of this utility model.

[0020] In the diagram: 100, sand screening assembly; 101, base; 102, buffer element; 103, connecting seat; 104, discharge pipe; 105, housing; 106, control module; 107, feed hopper; 108, dust hood; 109, mounting shell; 110, drive motor; 111, discharge pipe; 112, vibrating motor; 113, support plate; 114, dust collection box; 115, door; 116, connecting pipe; 117, vacuum pump; 118, separator frame; 119, crushing roller; 120, gear; 121, screen; 122, feed inlet; 123, filter bag. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 As shown, a sand screening device for earthwork construction includes a sand screening assembly 100. The sand screening assembly 100 includes a base 101, a buffer element 102, a connecting seat 103, a discharge pipe 104, a housing 105, a control module 106, a feed hopper 107, a dust suction hood 108, a mounting shell 109, a drive motor 110, a discharge pipe 111, a vibrating motor 112, a separator frame 118, a crushing roller 119, gears 120, and a screen 121. The base 101, buffer element 102, and connecting seat 103 can form a buffer assembly to reduce the noise generated during operation. The control module 106 is preferably a Burkmore industrial touchscreen B7S-G. Operating the control module 106 allows control of the device's operation. The drive motor 110 is preferably a 57BYGH650-23. During sand screening, the control module 106 controls the three drive motors 110 to start, causing three crushing rollers 119 to rotate. Subsequently, due to the meshing of two adjacent gears 120, two adjacent crushing rollers 119 will move towards each other, crushing large particles in the material. The crushed material falls to the bottom of the separator 118, and then flows out through the discharge pipe 104. Because the fineness of the crushed material is reduced, it can be mixed with sand to continue participating in earthwork construction. The vibrating motor 112 is preferably a ZFB bin vibrator motor, which causes the bin 105 to vibrate, achieving waste screening.

[0023] The sand screening assembly 100 also includes a support plate 113, a dust collection box 114, a box door 115, a connecting pipe 116, a vacuum pump 117, and a filter bag 123. The vacuum pump 117 is preferably an LP-1400V model. When screening waste materials, the vacuum pump 117 can be started. The vacuum pump 117 will then evacuate the dust collection box 114. Since the dust collection box 114 is under negative pressure, it will absorb the sand particles raised inside the box 105 through the connecting pipe 116 and the dust suction hood 108, thus avoiding the problem of dust spreading around the device during sand screening. In addition, the filter bag 123 can collect sand particles during this process, which enhances the utilization rate of resources.

[0024] The separator 118 is bolted to the inner wall of the housing 105. Three material inlets 122 are provided on one outer wall of the separator 118. One end of each of the three screens 121 is bolted to the outer wall of the separator 118, and the other end is bolted to the inner wall of the housing 105. The three screens 121 are arranged vertically according to their mesh size. One end of the discharge pipe 111 is bolted to the outer wall of the housing 105, and one end of the outlet pipe 104 is bolted to the outer wall of the housing 105. Above, one end of the discharge pipe 104 extends into the interior of the partition frame 118. The bottom ends of six buffer elements 102 are bolted to the outer walls of the top two sides of the base 101. Six connecting seats 103 are bolted to the tops of the six buffer elements 102 respectively. The feed hopper 107 is bolted to the outer wall of the top side of the box 105. The dust hood 108 is bolted to the outer wall of the top side of the box 105. The dust hood 108 and the box 105 are interconnected. The control module 106 is bolted to the box. On one side of the outer wall of housing 105, a vibratory motor 112 is bolted to the bottom outer wall of housing 105. A mounting shell 109 is bolted to the outer wall of housing 105. Gears 120 are located inside the mounting shell 109. Six crushing rollers 119 are installed in pairs inside housing 105. Six gears 120 are mounted on one end of each crushing roller 119 via flat keys, with adjacent gears 120 meshing with each other. Three drive motors 110 are bolted to the outer wall of housing 105. The output end of the drive motor 110 is fixedly connected to one end of each of the three crushing rollers 119 via a flat key. The support plate 113 is bolted to the outer wall of one side of the housing 105. The dust collection box 114 is bolted to the outer wall of the top of the support plate 113. The door 115 is hinged to the outer wall of one side of the housing 105. The bottom end of the connecting pipe 116 is inserted into the dust collection box 114. The top end of the connecting pipe 116 extends into the dust collection hood 108. The top end of the filter bag 123 is threaded to the bottom end of the connecting pipe 116.

[0025] In use, the control module 106 is operated first, which then controls the vibration motor 112 to start, causing the housing 105 to vibrate. Workers can then pour waste from the construction site into the feed hopper 107. The waste will fall onto the top screen 121. Due to the vibration, large particles will remain on the top screen 121. The waste then falls onto the second screen 121, and the process is repeated for a second screening. The material from the second screening falls onto the third screen 121, and the process is repeated for a third screening. The material from the third screening falls to the bottom of the housing 105. Due to the vibration, the material at the bottom of the housing 105 is discharged through the discharge pipe 111. Simultaneously, the material not screened on the screens 121 flows towards the feed inlet 122 due to the vibration, and then flows into the separator 118 through the feed inlet 122. During this process, the control module 106... The device 6 controls the start of three drive motors 110, causing three crushing rollers 119 to rotate. Subsequently, due to the meshing of two adjacent gears 120, two adjacent crushing rollers 119 will move towards each other, crushing large particles in the material. The crushed material will fall to the bottom of the separator 118, and then the material at the bottom of the separator 118 will flow out through the discharge pipe 104. Since the fineness of the crushed material is reduced, it can be mixed with sand to continue to participate in earthwork construction. When screening waste sand, the vacuum pump 117 can be started. The vacuum pump 117 will then evacuate the dust collection box 114. Since the dust collection box 114 is under negative pressure, the dust collection box 114 will absorb the sand particles raised inside the box 105 through the connecting pipe 116 and the dust suction hood 108, avoiding the problem of dust spreading around the device during sand screening. In addition, the filter bag 123 can collect sand particles during this process, improving the utilization rate of resources.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sand screening device for earthwork construction, comprising a sand screening assembly (100), characterized in that: The sand screening assembly (100) includes a base (101), a buffer element (102), a connecting seat (103), a discharge pipe (104), a housing (105), a control module (106), a feed hopper (107), a dust suction hood (108), a mounting shell (109), a drive motor (110), a discharge pipe (111), a vibration motor (112), a support plate (113), a dust collection box (114), a door (115), a connecting pipe (116), a vacuum pump (117), a separator (118), and a crusher. The components include a crushing roller (119), a gear (120), a screen (121), and a filter bag (123). The separator (118) is bolted to the inner wall of the box (105). Three feed inlets (122) are provided on one side of the outer wall of the separator (118). One end of each of the three screens (121) is bolted to the outer wall of the separator (118), and the other end of each of the three screens (121) is bolted to the inner wall of the box (105). The three screens (121) are arranged in an upper and lower structure according to their mesh diameter.

2. The sand screening device for earthwork construction according to claim 1, characterized in that: One end of the discharge pipe (111) is bolted to the outer wall of the box (105), and one end of the discharge pipe (104) is bolted to the outer wall of the box (105). One end of the discharge pipe (104) extends into the interior of the partition frame (118).

3. A sand screening device for earthwork construction according to claim 1, characterized in that: The bottom ends of the six buffer elements (102) are bolted to the outer walls of the top two sides of the base (101), and the six connecting seats (103) are bolted to the top of the six buffer elements (102).

4. A sand screening device for earthwork construction according to claim 1, characterized in that: The feed hopper (107) is bolted to the outer wall of the top side of the box (105), and the dust hood (108) is bolted to the outer wall of the top side of the box (105). The dust hood (108) and the box (105) are interconnected.

5. A sand screening device for earthwork construction according to claim 1, characterized in that: The control module (106) is bolted to the outer wall of one side of the housing (105), the vibration motor (112) is bolted to the outer wall of the bottom side of the housing (105), the mounting shell (109) is bolted to the outer wall of one side of the housing (105), and the gear (120) is located inside the mounting shell (109).

6. A sand screening device for earthwork construction according to claim 1, characterized in that: The six crushing rollers (119) are installed in pairs inside the housing (105). The six gears (120) are installed at one end of the crushing rollers (119) by flat keys. The two adjacent gears (120) mesh with each other. The three drive motors (110) are installed on the outer wall of one side of the housing (105) by bolts. The output ends of the three drive motors (110) are fixedly connected to one end of three of the crushing rollers (119) by flat keys.

7. A sand screening device for earthwork construction according to claim 1, characterized in that: The support plate (113) is bolted to the outer wall of one side of the box (105), the dust collection box (114) is bolted to the outer wall of the top of the support plate (113), and the box door (115) is hinged to the outer wall of one side of the box (105).

8. A sand screening device for earthwork construction according to claim 1, characterized in that: The bottom end of the connecting pipe (116) is inserted into the dust collection box (114), the top end of the connecting pipe (116) extends into the dust collection hood (108), and the top end of the filter bag (123) is threaded to the bottom end of the connecting pipe (116).

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