Multi-stage sand screening device for housing construction

Abstract

The utility model discloses a multi-stage sand screening device for housing construction, and relates to the technical field of sand screening equipment. Comprising a sand screening box, a dust removal mechanism is arranged at the top of the sand screening box, a feeding port is formed in the top of the sand screening box, a discharging port is formed in the bottom of one side of the sand screening box, and at least two screens are arranged in the sand screening box; the dust removal mechanism comprises a dustproof fan arranged at the top of the sand screening box, the input end of the dustproof fan is connected with a first dust suction hood and a second dust suction hood through hoses, the first dust suction hood is located above the feeding port, the second dust suction hood is located above the discharging port, and the output end of the dustproof fan communicates with a spraying box. Flying dust at the feeding port and the discharging port is extracted firstly and then sprayed for dust removal, the situation that the sand screening box and the screens are moist can be effectively avoided, the sand screening efficiency is guaranteed, sand is subjected to multi-stage screening through the multiple screens, and the sand screening effect is further guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of sand screening equipment, in particular to a multi-stage sand screening device for housing construction. Background Art

[0002] Housing construction refers to an engineering entity formed through the construction of various types of residential buildings and their ancillary facilities and the installation of supporting lines, pipelines, and equipment to meet people's needs for production, residence, study, and public activities. Among them, sand screening devices are common equipment in the housing construction process, which are used to screen sand so that the sand meets construction requirements.

[0003] The patent publication (publication number CN219400971U) discloses a sand screening device for construction engineering, comprising a processing tank ... The outer side of the spray pipe is connected to a spray head, and one side of the spray pipe is connected to a water inlet pipe;

[0004] The above-mentioned patent discloses that a nozzle is arranged on a circle of the inner wall of the feed hopper to cooperate with a water pump for dust removal, but the water mist and the condensed dust will enter the interior of the hopper together, causing the screening cylinder and the screen to become wet, and the sand cannot be effectively screened;

[0005] The above-mentioned public patent only screens sand through a single screen, and cannot screen by grade. The screening effect is single and the use effect is not ideal. Utility Model Content

[0006] The utility model provides a multi-stage sand screening device for housing construction to solve the problems in the background technology.

[0007] To achieve the above object, the utility model provides the following technical solution: a multi-stage sand screening device for housing construction, comprising a sand screening box, a dust removal mechanism is arranged on the top of the sand screening box, a feed inlet is arranged on the top of the sand screening box, a discharge port is arranged on the bottom of one side of the sand screening box, and at least two screens are arranged inside the sand screening box;

[0008] The dust removal mechanism includes a dust-proof fan arranged on the top of the sand screening box, the input ends of the dust-proof fan are respectively connected to dust hood 1 and dust hood 2 through hoses, the dust hood 1 is located above the feed port, the dust hood 2 is located above the discharge port, and the output end of the dust-proof fan is connected to a spray box.

[0009] Furthermore, the dust removal mechanism also includes an adjustment frame.

[0010] Furthermore, the adjustment frame includes a fixing rod fixedly arranged on the top of the sand screening box, one side of the fixing rod is connected to an adjustment rod by bolts, and the top of the adjustment rod is connected to one end of the bottom of the dust hood.

[0011] Furthermore, a motor and a drive box arranged on one side of the motor are arranged on one side of the sand screening box.

[0012] Furthermore, at least one driving shaft drivingly connected to the output end of the motor is arranged inside the driving box.

[0013] Furthermore, one end of the driving shaft extends between the two screens, and a cam located between the two screens is provided on the driving shaft.

[0014] Furthermore, stabilizing shafts are arranged on the four corners of the inner wall of the sand screening box, and sliding sleeves which are respectively sleeved with the four stabilizing shafts are arranged on the four corners of the screen.

[0015] Furthermore, the stabilizing shaft is provided with return springs located at the top and bottom of the sliding sleeve.

[0016] Furthermore, a discharge cover is provided at the upper middle portion of the side of the sand screening box opposite to the discharge port.

[0017] Furthermore, a material guiding cavity inclined toward a material discharge port is provided at the bottom of the inner wall of the sand screening box, and the screen is arranged at an inclination.

[0018] Compared with the prior art, the utility model provides a multi-stage sand screening device for housing construction, which has the following beneficial effects:

[0019] The multi-stage sand screening device used in housing construction extracts the dust from the feed and discharge ports by first extracting it and then spraying it for dust removal. This can effectively avoid moisture in the sand screening box and the screen, ensure the sand screening efficiency, and perform multi-stage screening of the sand through multiple screens, further ensuring the sand screening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a side view of the sand screening box structure of the utility model;

[0022] Figure 3 This is a front cross-sectional view of the sand screening box structure of the utility model;

[0023] Figure 4 It is a side sectional view of the drive shaft structure of the utility model.

[0024] In the figure: 1. sand screening box; 11. feed inlet; 12. discharge outlet; 13. discharge cover; 14. screen; 141. sliding sleeve; 15. material guide chamber; 16. stabilizing shaft; 161. reset spring; 17. motor; 18. drive box; 19. drive shaft; 191. cam; 2. dust removal mechanism; 21. dust-proof fan; 22. dust hood 1; 23. dust hood 2; 24. adjustment frame; 241. fixing rod; 242. adjustment rod; 3. spray box; 31. water tank; 32. air outlet. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-4 The utility model discloses a multi-stage sand screening device for housing construction, comprising a sand screening box 1, a dust removal mechanism 2 is arranged on the top of the sand screening box 1, a feeding port 11 is arranged on the top of the sand screening box 1, a discharge port 12 is arranged on the bottom of one side of the sand screening box 1, and at least two screens 14 are arranged inside the sand screening box 1.

[0027] The dust removal mechanism 2 includes a dust-proof fan 21 arranged on the top of the sand screening box 1, and the input end of the dust-proof fan 21 is connected to a dust hood 1 22 and a dust hood 2 23 through a hose, respectively. The dust hood 1 22 is located above the feed port 11, and the dust hood 2 23 is located above the discharge port 12. The output end of the dust-proof fan 21 is connected to a spray box 3.

[0028] Specifically, the dust removal mechanism 2 also includes an adjusting frame 24, which includes a fixing rod 241 fixedly arranged on the top of the sand screening box 1, and one side of the fixing rod 241 is connected to an adjusting rod 242 by bolts, and the top of the adjusting rod 242 is connected to one end of the bottom of the dust hood 22, and the number of bolts is not less than two. A plurality of through holes are opened on the adjusting rod 242, which can be connected to different through holes by bolts to adjust the height of the dust hood 22, thereby facilitating the staff to add sand to the inside of the feed port 11.

[0029] Specifically, a motor 17 and a drive box 18 arranged on one side of the motor 17 are provided on one side of the sand screening box 1. At least one drive shaft 19 drivingly connected to the output end of the motor 17 is provided inside the drive box 18. One end of the drive shaft 19 extends between the two screens 14, and a cam 191 located between the two screens 14 is provided on the drive shaft 19. There are two cams 191 on the drive shaft 19, which are respectively located at the two ends of the screen 14, thereby ensuring the stability of the screen 14 when it moves up and down. Figure 3 One drive shaft 19 corresponds to two screens 14. When the number of screens 14 is four, the number of drive shafts 19 inside the drive box 18 is two, and the two drive shafts 19 are driven by a chain. There is no need to increase the number of motors 17, which is more energy-saving and economically efficient. By starting the motor 17, the cam 191 is driven to lift the screen 14 above it and press down the screen 14 below it. In this cycle, the sand on the screen 14 can be quickly screened.

[0030] Specifically, stabilizing shafts 16 are provided on the four corners of the inner wall of the sand screening box 1, and sliding sleeves 141 are provided on the four corners of the screen 14, which are respectively sleeved with the four stabilizing shafts 16. The stabilizing shaft 16 is sleeved with reset springs 161 located at the top and bottom of the sliding sleeve 141. The reset spring 161 can effectively control the distance between the two screens 14, and can be quickly reset after the screen 14 is lifted or pressed down. The stabilizing shaft 16 cooperates with the sliding sleeve 141 to further ensure the stability of the screen 14 during movement.

[0031] Specifically, a discharge cover 13 is provided on the upper middle part of the side of the sand screening box 1 opposite to the discharge port 12. The sand that does not meet the specifications is screened out and moved to the discharge cover 13 along the inclined screen 14, which is convenient for centralized cleaning later. The discharge cover 13 can be fixed on the sand screening box 1 by screws or snap-fitted.

[0032] Specifically, a guide cavity 15 inclined toward the discharge port 12 is provided at the bottom of the inner wall of the sand screening box 1, and the screen 14 is inclined. The inclined screen 14 cooperates with the cam 191 to further ensure the sand screening efficiency. The setting of the guide cavity 15 allows the screened sand that meets the specifications to flow to the discharge port 12 in a concentrated manner.

[0033] Specifically, a water tank 31 is provided on the top of the spray box 3, and air outlets 32 are provided on both sides of the spray box 3. A nozzle connected to the water tank 31 is provided on the top of the inner wall of the spray box 3. The dust-proof fan 21 is started to extract dust from the feed port 11 and the discharge port 12 through the dust hood 1 22 and the dust hood 2 23 respectively to reduce interference with the working environment. The dust-proof fan 21 transports dust-laden air to the spray box 3 for spraying and dust removal, and the dust-removed air is discharged through the air outlet 32.

[0034] In summary, the multi-stage sand screening device for housing construction uses a method of first extracting the dust from the feed port 11 and the discharge port 12 and then spraying it for dust removal, which can effectively avoid moisture in the sand screening box 1 and the screen 14, thereby ensuring the sand screening efficiency. The sand is screened in multiple stages through multiple screens 14, further ensuring the sand screening effect.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage sand screening device for housing construction, comprising a sand screening box (1), characterized in that: The top of the sand screening box (1) is provided with a dust removal mechanism (2), the top of the sand screening box (1) is provided with a feed port (11), a bottom of one side of the sand screening box (1) is provided with a discharge port (12), and at least two screens (14) are provided inside the sand screening box (1); The dust removal mechanism (2) comprises a dust-proof fan (21) arranged on the top of the sand screening box (1); the input end of the dust-proof fan (21) is connected to a dust hood 1 (22) and a dust hood 2 (23) via a hose, respectively; the dust hood 1 (22) is located above the feed port (11); the dust hood 2 (23) is located above the discharge port (12); and the output end of the dust-proof fan (21) is connected to a spray box (3).

2. A multi-stage sand screening device for housing construction according to claim 1, characterized in that: The dust removal mechanism (2) also includes an adjustment frame (24).

3. A multi-stage sand screening device for housing construction according to claim 2, characterized in that: The adjustment frame (24) comprises a fixing rod (241) fixedly arranged on the top of the sand screening box (1), one side of the fixing rod (241) is connected to an adjustment rod (242) via bolts, and the top of the adjustment rod (242) is connected to one end of the bottom of the dust cover (22).

4. The multi-stage sand screening device for housing construction according to claim 1, characterized in that: A motor (17) and a drive box (18) arranged on one side of the motor (17) are arranged on one side of the sand screening box (1).

5. A multi-stage sand screening device for housing construction according to claim 4, characterized in that: At least one driving shaft (19) is arranged inside the driving box (18) and is drivingly connected to the output end of the motor (17).

6. A multi-stage sand screening device for housing construction according to claim 5, characterized in that: One end of the driving shaft (19) extends between the two screens (14), and a cam (191) located between the two screens (14) is provided on the driving shaft (19).

7. The multi-stage sand screening device for housing construction according to claim 1, characterized in that: The four corners of the inner wall of the sand screening box (1) are provided with stabilizing shafts (16), and the four corners of the screen (14) are provided with sliding sleeves (141) respectively sleeved with the four stabilizing shafts (16).

8. The multi-stage sand screening device for housing construction according to claim 7, characterized in that: The stabilizing shaft (16) is sleeved with a return spring (161) located at the top and bottom of the sliding sleeve (141).

9. The multi-stage sand screening device for housing construction according to claim 1, characterized in that: A discharge cover (13) is provided at the middle upper part of a side of the sand screening box (1) opposite to the discharge opening (12).

10. A multi-stage sand screening device for housing construction according to claim 1, characterized in that The bottom of the inner wall of the sand screening box (1) is provided with a material guiding cavity (15) inclined toward the material discharge port (12), and the screen (14) is arranged at an inclination.

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