Sand drying equipment for building construction

Abstract

The utility model relates to the technical field of sand drying, in particular to sand drying equipment for building construction, which comprises a throwing mechanism for throwing sand upwards during drying, a drying mechanism and a scattering mechanism for scattering the falling sand. A rotating rod rotates to drive a spiral plate to rotate at the position of an outlet of a feeding hopper so as to feed sand into a drying box, the spiral plate drives an arc-shaped scraping strip to rotate at the bottom of the feeding hopper so as to scrape sand accumulated in the feeding hopper to the center of the arc-shaped scraping strip, and the situation that wet sand huddles and cannot be discharged in the whole drying process is avoided; the upper stirring base and the lower stirring base are driven by the rotating rod to rotate to alternately stir the upper side and the lower side of the front loosening beating frame and the upper side and the lower side of the rear loosening beating frame, then the front loosening beating frame, the rear loosening beating frame and the discharging frames on the two sides of the front loosening beating frame and the rear loosening beating frame synchronously and alternately swing in a reciprocating mode, and then huddled wet sand during discharging is discharged. And the agglomerated sand is prevented from being accumulated on the same side of the drying box to affect secondary drying treatment.

Description

Technical Field

[0001] The utility model relates to the technical field of sand drying, in particular to sand drying equipment for building construction. Background Art

[0002] After searching the patent document with the announcement number CN220250553U, it is found that the motor drives the driving shaft to make the rotating rod perform circular motion, and then the rotating rod in circular motion is used to push the pointed filter upward, and the spring is used to make the pointed filter reciprocate on the vertical rod, and then the sand entering the feed hopper will be bounced by the pointed filter to increase the heating range;

[0003] The patent document states that during the process of sand falling from the feed hopper into the drying box, the sand is in a relatively wet state as a whole and may clump together at the bottom of the feed hopper and cannot smoothly enter the drying box. It is very troublesome to frequently loosen the clumped sand. Since the rotation direction of the crushing knife is certain, the sand that is not particularly loose and enters the drying box at this time may be discharged to one side of the drying box by the rotating crushing knife, while relatively less sand will remain on the other side of the drying box, resulting in inconsistent sand thickness on both sides of the pointed filter, which will then cause the sand on both sides to bounce up to inconsistent heights, affecting the overall drying speed. Utility Model Content

[0004] The purpose of the utility model is to provide a sand drying device for construction in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A sand drying device for construction, comprising a throwing mechanism for throwing sand upwards when drying, a drying mechanism and a dispersing mechanism for dispersing the fallen sand;

[0007] The drying mechanism comprises a drying box, a feed hopper is fixed on the top of the drying box, air guide filters for guiding steam are installed on both sides of the feed hopper on the top of the drying box, and a guide port is opened at the bottom of the front end of the drying box;

[0008] The discharge mechanism includes a rotating rod, a loosening motor for driving the rotation of the rotating rod is fixedly arranged at the upper end of the rotating rod, a spiral plate is fixed to the position of the rotating rod at the lower end of the feed hopper, an arc-shaped scraper strip for rotating inside the feed hopper is fixed to the upper end of the spiral plate, a plurality of front loose racks are arranged on the front side of the drying box, a plurality of rear loose racks are arranged on the rear side of the drying box, an upper shifting seat and a lower shifting seat fixed to the lower end of the rotating rod are arranged between the front loose racks and the rear loose racks, and the upper shifting seat is located above the lower shifting seat.

[0009] Preferably: a plurality of loose racks rotatably connected to the inside of the drying box are provided on both sides of the front loose rack and the rear loose rack, and a transmission assembly is provided at one end of the front loose rack and the rear loose rack away from each other.

[0010] Preferably, the transmission assembly comprises a plurality of first gears, which are respectively fixed to the ends of the front loose rack, the rear loose rack and the plurality of loose racks, and two racks are arranged inside the drying box for synchronously rotating the plurality of first gears.

[0011] Preferably: guide slide grooves for sliding the two racks are fixed on both the front and rear sides of the drying box, and a cross bar for supporting the rotation of the rotating rod is provided between the front loose rack and the rear loose rack inside the drying box.

[0012] Preferably: the throwing mechanism includes two throwing frames, a throwing screen plate is fixed between the two throwing frames, an arc-shaped gear ring is fixed on the lower side of the throwing frames, and a driving rod is provided on the inner side of the arc-shaped gear ring, and a second gear meshing with the arc-shaped gear ring is provided on the front and rear sides of the driving rod, a throwing motor is fixed at the input end of the driving rod, and an arc-shaped slide is provided inside the drying box at the lower side of the arc-shaped gear ring.

[0013] Preferably, heating covers are provided at both sides of the throwing mechanism, resistance heating tubes are installed on the heating covers, and a fan is fixed on one side of the heating covers away from the resistance heating tubes.

[0014] The beneficial effects compared with the prior art are as follows:

[0015] 1. The rotating rod drives the spiral plate to rotate at the outlet of the feed hopper to send the sand into the drying box, and the spiral plate drives the arc-shaped scraper to rotate at the bottom of the feed hopper to scrape the accumulated sand in the feed hopper to its center, so as to avoid the situation that the wet sand clumps and does not discharge during the whole drying process;

[0016] 2. The upper and lower shifting seats are driven to rotate by the rotating rod to alternately shift the upper and lower sides of the front loose rack and the rear loose rack, and then the front loose rack and the rear loose rack are synchronized with the discharging racks on both sides to swing back and forth alternately, thereby discharging the wet sand that is still clumped during unloading, and avoiding the accumulation of clumped sand on the same side of the drying box to affect the secondary drying process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a sand drying device for construction described in the utility model;

[0019] Figure 2 This is a cross-sectional view of a drying mechanism of a sand drying device for construction according to the utility model;

[0020] Figure 3 This is a first cross-sectional view of a sand drying device for construction according to the utility model;

[0021] Figure 4 This is a second cross-sectional view of a sand drying device for construction according to the utility model;

[0022] Figure 5 It is a throwing mechanism of a sand drying device for construction described in the utility model;

[0023] Figure 6 This is a partial parts diagram of a heating cover of a sand drying device for construction described in the utility model;

[0024] Figure 7 This is a diagram of the front loose rack, the rear loose rack and a plurality of loose racks of a sand drying device for construction described in the utility model;

[0025] Figure 8 This is a first state diagram of an upper pull seat, a lower pull seat, a front loose rack, and a rear loose rack of a sand drying device for construction described in the utility model;

[0026] Fig. 9 It is a second state diagram of an upper shifting seat, a lower shifting seat, a front loose rack and a rear loose rack of a sand drying device for construction described in the utility model.

[0027] The following are the descriptions of the reference numerals:

[0028] 1. Drying mechanism; 2. Discharging mechanism; 3. Throwing mechanism; 4. Heating hood; 5. Fan; 6. Resistance heating tube; 7. Loosening motor; 8. Air filter; 11. Feed hopper; 12. Drying box; 13. Arc slideway; 14. Guide slideway; 15. Crossbar; 21. Rotating rod; 22. Arc scraper; 23. Spiral plate; 24. Upper dial seat; 25. Lower dial seat; 26. Front loosening rack; 27. Rear loosening rack; 28. First gear; 29. ​​Rack; 31. Throwing rack; 32. Throwing screen plate; 33. Driving rod; 34. Throwing motor. DETAILED DESCRIPTION

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0030] The utility model is further described below in conjunction with the accompanying drawings:

[0031] like Figure 1-Figure 9 As shown, a sand drying equipment for construction includes a throwing mechanism 3 for throwing sand upward when drying, heating covers 4 are provided on both sides of the throwing mechanism 3, resistance heating tubes 6 are installed on the heating covers 4, and a fan 5 is fixed on the side of the heating covers 4 away from the resistance heating tubes 6. The equipment also includes a drying mechanism 1 and a dispersing mechanism 2 for dispersing the fallen sand.

[0032] In this embodiment: the drying mechanism 1 includes a drying box 12, a feed hopper 11 is fixed on the top of the drying box 12, and air guide filters 8 for guiding steam are installed on the top of the drying box 12 at both sides of the feed hopper 11. A guide port is opened at the bottom position of the front end of the drying box 12. The feed hopper 11 is used to guide sand into the drying box 12, and the sand is heated by the resistance heating tube 6 inside the drying box 12. At the same time, the fan 5 is used to blow air into the drying box 12, and then the steam from the heated sand overflows from the air guide filter 8.

[0033] In this embodiment: the dispersing mechanism 2 includes a rotating rod 21, a loosening motor 7 for driving the rotating rod 21 to rotate is fixedly arranged on the upper end of the rotating rod 21, a spiral plate 23 is fixedly arranged at the position of the rotating rod 21 at the lower end of the feed hopper 11, and an arc-shaped scraper 22 for rotating inside the feed hopper 11 is fixedly arranged on the upper end of the spiral plate 23, a plurality of front loosening racks 26 are arranged on the front side of the drying box 12, and a plurality of rear loosening racks 27 are arranged on the rear side of the drying box 12, and an upper dial seat 24 and a lower dial seat 2 fixed at the lower end of the rotating rod 21 are arranged between the front loosening rack 26 and the rear loosening rack 27. 5. The upper shifting seat 24 is located above the lower shifting seat 25. Both sides of the front loose rack 26 and the rear loose rack 27 are provided with a plurality of dispersing racks rotatably connected to the inside of the drying box 12. The ends of the front loose rack 26 and the rear loose rack 27 that are away from each other are provided with a plurality of first gears 28. The plurality of first gears 28 are respectively fixed to the ends of the front loose rack 26, the rear loose rack 27 and the plurality of dispersing racks. Two racks 29 for synchronously rotating the plurality of first gears 28 are provided inside the drying box 12. The front and rear sides of the drying box 12 are fixed with gears for rotating the two racks 29 on both sides. The sliding guide chute 14, the interior of the drying box 12 is provided with a cross bar 15 for supporting the rotation of the rotating rod 21 between the front loose rack 26 and the rear loose rack 27, and the rotating part of the loose motor 7 drives the rotating rod 21 to rotate, and the spiral plate 23 on the rotating rod 21 is used to continuously transport the sand piled at the outlet of the feed hopper 11 into the drying box 12, and the arc-shaped scraper 22 follows the rotation of the spiral plate 23 to scrape the sand accumulated at the bottom or edge of the feed hopper 11 to the center position, and at the same time, the rotation of the rotating rod 21 is used to drive the upper and lower seats 24 and 26 to rotate. The seat 25 rotates synchronously, and the upper and lower sides of the front loose rack 26 and the upper and lower sides of the rear loose rack 27 are alternately moved by the rotation of the upper and lower seats 24 and 25, so that the front loose rack 26 and the rear loose rack 27 are alternately swung on both sides with their own axes as the center. At the same time, the two racks 29 and the plurality of first gears 28 are engaged, and then the discharging frames on both sides of the front loose rack 26 and the rear loose rack 27 are synchronized to discharge the falling sand in blocks to the positions on both sides of the drying box 12, so as to avoid most of the sand from accumulating on the same side of the drying box 12.

[0034] In this embodiment: the throwing mechanism 3 includes two throwing frames 31, a throwing screen plate 32 is fixed between the two throwing frames 31, an arc-shaped gear ring is fixed on the lower side of the throwing frames 31, and a driving rod 33 is provided on the inner side of the arc-shaped gear ring, and the front and rear sides of the driving rod 33 are provided with a second gear meshing with the arc-shaped gear ring, and a throwing motor 34 is fixedly provided at the input end of the driving rod 33, and an arc-shaped slide 13 is provided inside the drying box 12 at the lower side of the arc-shaped gear ring. The throwing motor 34 is used to rotate alternately in forward and reverse directions to drive the driving rod 33 to rotate, and the second gear on the driving rod 33 is meshed with the arc-shaped gear ring of the throwing frame 31, so that the two throwing frames 31 rotate alternately in forward and reverse directions on the arc-shaped slide 13.

[0035] Working principle: When in use, first pour the sand to be dried into the feed hopper 11, then the rotating part of the loosening motor 7 drives the rotating rod 21 to rotate, and at this time, the spiral plate 23 on the rotating rod 21 continuously transports the sand piled at the outlet of the feed hopper 11 to the drying box 12, and at the same time, the arc-shaped scraper 22 follows the rotation of the spiral plate 23 to scrape the sand accumulated at the bottom or edge of the feed hopper 11 to its center, and then completely delivers the sand in the feed hopper 11 to the inside of the drying box 12;

[0036] In addition, the upper shifting seat 24 and the lower shifting seat 25 are driven to rotate synchronously by the rotation of the rotating rod 21. When the upper shifting seat 24 rotates to contact the upper side of the front loose rack 26, as the rotating rod 21 continues to rotate, the upper end of the front loose rack 26 begins to be shifted by the end of the upper shifting seat 24, and then the entire front loose rack 26 will turn to one side with its own axis as the center. After the upper shifting seat 24 rotates the upper side of the front loose rack 26, the upper side of the front loose rack 26 is tilted to one side.

[0037] As the upper shift seat 24 continues to rotate, the end of the upper shift seat 24 contacts the upper side of the rear loose rack 27, and as the rotating rod 21 continues to rotate, the end of the upper shift seat 24 will shift the upper side of the rear loose rack 27 to the other side. At this time, the rear loose rack 27 will flip to the other side with its own axis as the center, and at the same time, the end of the lower shift seat 25 shifts the lower side of the front loose rack 26 to one side. When the upper side of the rear loose rack 27 flips from tilting to one side to tilting to the other side, the lower shift seat 25 shifts the front loose rack 26 6 The upper side is tilted from one side to the other side, and then the upper and lower seats 24 and the lower seats 25 are rotated to complete the alternating flipping and swinging of the upper and lower sides of the front loose rack 26 and the upper and lower sides of the rear loose rack 27. In addition, the meshing of the two racks 29 and the plurality of first gears 28 is used to drive the discharging racks on both sides of the front loose rack 26 and the rear loose rack 27 to move synchronously, thereby discharging the falling sand in blocks to the positions on both sides of the drying box 12, so as to prevent most of the sand from accumulating on the same side of the drying box 12;

[0038] When the sand falls from the front loose rack 26 and the rear loose rack 27, the fan 5 blows air through the resistance heating tube 6 to heat it, and then heats the discharged sand. The heated sand evaporates the moisture on its surface, and the steam generated in this process is discharged from the two air guide filters 8 of the drying box 12;

[0039] In addition, the drive rod 33 is driven to rotate by the alternating forward and reverse rotation of the throwing motor 34, and the second gear on the driving rod 33 is meshed with the arc-shaped gear ring of the throwing frame 31, so that the two throwing frames 31 are rotated forward and reverse alternately on the arc-shaped slide 13, and the sand falling on the throwing screen plate 32 is allowed to roll alternately to both sides, and the dry sand will fall from the throwing screen plate 32, while the dry and clumping sand will move to both sides. When the clumped sand reaches the end of the throwing screen plate 32, it will be thrown upward due to the alternating forward and reverse rotation of the two throwing frames 31 on the arc-shaped slide 13, and then it is heated and dried again here between the two heating covers 4; after the sand is completely dried, it will flow out from the throwing screen plate 32 and be collected from the outlet of the drying box 12.

[0040] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A sand drying device for construction, comprising a throwing mechanism (3) for throwing sand upwards when drying, characterized in that: It also includes a drying mechanism (1) and a dispersing mechanism (2) for dispersing the fallen sand; The drying mechanism (1) comprises a drying box (12), a feed hopper (11) being fixed on the top of the drying box (12), air guide screens (8) for guiding steam out are installed on both sides of the feed hopper (11) on the top of the drying box (12), and a guide outlet is provided at the bottom of the front end of the drying box (12); The dispersing mechanism (2) comprises a rotating rod (21), a loosening motor (7) for driving the rotating rod (21) to rotate is fixedly arranged at the upper end of the rotating rod (21), a spiral plate (23) is fixedly arranged at the position of the rotating rod (21) at the lower end of the feed hopper (11), an arc-shaped scraper (22) for rotating inside the feed hopper (11) is fixedly arranged at the upper end of the spiral plate (23), a plurality of front loosening racks (26) are arranged at the front side of the drying box (12), a plurality of rear loosening racks (27) are arranged at the rear side of the drying box (12), an upper shifting seat (24) and a lower shifting seat (25) fixed to the lower end of the rotating rod (21) are arranged between the front loosening racks (26) and the rear loosening racks (27), and the upper shifting seat (24) is located above the lower shifting seat (25).

2. The sand drying equipment for construction according to claim 1, characterized in that: Both sides of the front loose rack (26) and the rear loose rack (27) are provided with a plurality of loose racks rotatably connected to the interior of the drying box (12), and the ends of the front loose rack (26) and the rear loose rack (27) that are away from each other are provided with transmission components.

3. The sand drying equipment for construction according to claim 2 is characterized in that: The transmission assembly comprises a plurality of first gears (28), wherein the plurality of first gears (28) are respectively fixed to the ends of the front loose rack (26), the rear loose rack (27) and the plurality of loose racks, and two racks (29) are provided inside the drying box (12) for allowing the plurality of first gears (28) to rotate synchronously.

4. The sand drying equipment for construction according to claim 3 is characterized in that: The front and rear sides of the drying box (12) are fixed with guide grooves (14) for allowing the two racks (29) to slide on both sides. The drying box (12) is provided with a cross bar (15) for supporting the rotation of the rotating rod (21) between the front loose rack (26) and the rear loose rack (27).

5. The sand drying equipment for construction according to claim 1, characterized in that: The throwing mechanism (3) comprises two throwing frames (31), a throwing screen plate (32) is fixed between the two throwing frames (31), an arc-shaped gear ring is fixed on the lower side of the throwing frames (31), and a driving rod (33) is provided on the inner side of the arc-shaped gear ring, and a second gear meshing with the arc-shaped gear ring is provided on both the front and rear sides of the driving rod (33), a throwing motor (34) is fixedly provided at the input end of the driving rod (33), and an arc-shaped slideway (13) is provided inside the drying box (12) at the lower side of the arc-shaped gear ring.

6. The sand drying equipment for construction according to claim 1, characterized in that: Heating covers (4) are provided at both sides of the throwing mechanism (3), a resistance heating tube (6) is mounted on the heating cover (4), and a fan (5) is fixed on the side of the heating cover (4) away from the resistance heating tube (6).

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