Sand drying equipment

Abstract

The invention discloses sand drying equipment, and relates to the technical field of sand drying, the sand drying equipment comprises first mounting racks, a second mounting rack, a heat cycle assembly, a vibration assembly and an air supply assembly, two rotating cylinders are connected between the two first mounting racks through bearings, first gears are fixedly connected to the peripheral sides of the rotating cylinders, the two first gears are meshed, and the two first gears are meshed with the vibration assembly. A rotating shaft is connected between the two first mounting frames and the second mounting frame through bearings, the rotating shaft is fixedly connected with a second gear, and the second gear is meshed with one of the first gears. Through the air supply assembly, it is avoided that water vapor exists in the rotating cylinder for a long time and cannot be discharged, and the sand drying effect and drying efficiency are affected; according to the sand drying device, sand attached to the surface of the spiral plate is shaken off through the vibration assembly, the situation that when drying is just started, wet sand is attached to the surface of the spiral plate and rotates along with the spiral plate, and the rolling operation cannot be completed is effectively avoided, and the sand drying efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sand drying, in particular to sand drying equipment. Background Art

[0002] Since the sand currently used in construction is often river sand, the river sand just scooped out contains a lot of water and cannot be used directly in the production of concrete. It often needs to be dehydrated and dried.

[0003] According to the announcement number: CN113587584B, it involves the technical field of industrial drying devices, specifically refers to an electromagnetic heating drying device that replaces coal and gas. The above-mentioned electromagnetic heating drying device has the following disadvantages: 1. The device will generate a large amount of water vapor in the process of heating and drying the sand, but it only relies on the water vapor itself to move to the outside, and cannot discharge the water vapor in the drying cylinder in time, resulting in a long drying time for the sand and low efficiency; 2. When the device starts working, since the sand contains a lot of water, the wet sand is easy to adhere to the inner wall of the drying cylinder. When the drying cylinder rotates, part of the sand adheres to the inner wall of the drying cylinder and rotates together, and cannot be rolled in a short time. The sand cannot be heated evenly, which reduces the drying efficiency of the sand.

[0004] Based on this, a sand drying device is now provided to eliminate the drawbacks of the existing devices. Summary of the invention

[0005] The object of the present invention is to provide a sand drying device to solve the shortcomings of the modern products in the background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A sand drying device, comprising a first mounting frame, a second mounting frame, a heat circulation assembly, a vibration assembly, and an air supply assembly, wherein two rotating cylinders are connected between the two first mounting frames via bearings, a first gear is fixedly connected to the circumference of the rotating cylinder, and the two first gears are meshed, a rotating shaft is connected between the two first mounting frames and the second mounting frames via bearings, the rotating shaft is fixedly connected to a second gear, and the second gear is meshed with one of the first gears, a motor is fixedly connected to the side wall of the second mounting frame via a bracket, the motor is connected to the rotating shaft, a transmission cylinder is fixedly connected to the side wall of the second mounting frame via a bracket, the transmission cylinder is rotatably connected to the rotating cylinder, a feeding hopper is arranged on the side wall of the transmission cylinder, a bent pipe is connected between the two rotating cylinders via bearings, a plurality of spiral grooves are provided on the inner side wall of the rotating cylinder, and a spiral plate is welded in the spiral groove;

[0008] The air supply assembly is arranged on the side wall of the second mounting frame and is used to deliver gas into the rotating cylinder;

[0009] The heat cycle assembly is arranged on the side wall of the second mounting frame and is used for heat exchange of the gas exhausted from the rotating drum;

[0010] The vibration component is arranged on the peripheral side of the rotating cylinder and is used for impacting the spiral plate.

[0011] On the basis of the above technical solution, the present invention also provides the following optional technical solution:

[0012] In an optional solution: two heating cylinders are fixedly connected between the two first mounting frames, the heating cylinder is connected to the rotating cylinder through a bearing, a heating coil is arranged between the heating cylinder and the rotating cylinder, an electromagnetic heater is arranged around the heating cylinder, and both ends of the heating coil are connected to the electromagnetic heater.

[0013] In an optional solution: the inner side wall of the transmission cylinder is connected to a spiral rod via a bearing, and the portion of the spiral rod located outside the transmission cylinder is transmission-connected to the rotating shaft via a synchronous belt transmission member.

[0014] In an optional solution: the air supply assembly includes a fan and an air inlet pipe, the transmission cylinder is fixedly connected to an air inlet cylinder on the circumference, the air inlet cylinder is provided with a plurality of air inlets connected to the rotating cylinder, the air inlet cylinder is connected to an air inlet pipe, and the air inlet pipe is connected to the fan.

[0015] In an optional solution: the heat circulation component includes a heat exchange tube and a discharge barrel, the heat exchange tube is fixedly connected to the side wall of the second mounting frame, the air inlet pipe is fixedly connected to the heat exchange tube, one of the rotating barrels is connected to the discharge barrel via a bearing, the discharge barrel is connected to the heat exchange tube via a pipeline, and a discharge port is opened on the peripheral side of the discharge barrel.

[0016] In an optional scheme: the vibration assembly includes a fixed ring and a ball, two symmetrical fixed rings are fixedly connected to the circumference of the heating cylinder, a plurality of impact block holes are opened on the side wall of the rotating cylinder, a fixed frame is fixedly connected to the circumference of the rotating cylinder, a striker block is slidably connected through the fixed frame, a spring is fixedly connected between the striker block and the fixed frame, a ball is arranged on the top of the striker block, the ball abuts against the fixed ring, a plurality of protrusions are arranged on the inner side wall of the fixed ring, and the striker block extends into the spiral groove through the impact hole.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention starts the fan, which transports air to one of the rotating cylinders through the air inlet pipe and the air inlet cylinder. The air passes through the two rotating cylinders and takes out the water vapor in the two rotating cylinders, thereby preventing the water vapor from existing in the rotating cylinders for a long time and being unable to be discharged, which affects the sand drying effect and drying efficiency.

[0019] 2. The present invention can perform heat exchange between the heated water vapor and the cold air in the air inlet pipe, so that the water vapor discharged from the rotating drum is cooled down, while the air just entering the rotating drum is heated. The heated air performs hot air drying on the wet sand, thereby improving the drying effect and drying efficiency of the sand, saving energy, and making full use of the discharged water vapor.

[0020] 3. The present invention can drive the fixed frame to rotate while the rotating drum rotates, and the fixed frame drives the impact block to rotate. During the rotation of the impact block, the spring and the convex block on the inner wall of the fixed ring cooperate to drive the impact block to continuously reciprocate and impact the spiral plate, so as to shake off the sand attached to the surface of the spiral plate, effectively avoiding the wet sand adhering to the surface of the spiral plate at the beginning of drying, rotating with the spiral plate, and failing to complete the tumbling operation, thereby improving the drying efficiency of the sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 This is a first viewing angle diagram of the present invention.

[0023] Figure 3 This is a second viewing angle diagram of the present invention.

[0024] Figure 4 It is a schematic diagram of the heat exchange tube structure of the present invention.

[0025] Figure 5 It is a schematic diagram of the internal structure of the present invention.

[0026] Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle.

[0027] Figure 7 It is a schematic diagram of the rotating drum structure of the present invention.

[0028] Figure 8 It is a schematic diagram of the impact block structure of the present invention.

[0029] Notes on figure numbers: 1 first mounting frame, 2 fan, 3 motor, 4 feed hopper, 5 heating cylinder, 6 bent pipe, 7 air inlet pipe, 8 heat exchange pipe, 9 air inlet cylinder, 10 first gear, 11 second gear, 12 transmission cylinder, 13 rotating shaft, 14 synchronous belt transmission part, 15 screw rod, 16 discharge cylinder, 17 electromagnetic heater, 18 second mounting frame, 19 rotating cylinder, 20 spiral plate, 21 fixing ring, 22 fixing frame, 23 ball, 24 collision block, 25 heating coil, 26 thermal circulation assembly, 27 vibration assembly, 28 air supply assembly. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] In one embodiment, Figure 1-Figure 8 As shown, a sand drying device comprises a first mounting frame 1, a second mounting frame 18, a heat circulation assembly 26, a vibration assembly 27, and an air supply assembly 28. Two rotating cylinders 19 are connected between the two first mounting frames 1 through bearings. A first gear 10 is fixedly connected to the circumference of the rotating cylinder 19, and the two first gears 10 are meshed. A rotating shaft 13 is connected between the two first mounting frames 1 and the second mounting frame 18 through bearings. The rotating shaft 13 is fixedly connected to the second gear 11, and the second gear 11 is meshed with one of the first gears 10. A motor 3 is fixedly connected to the side wall of the second mounting frame 18 through a bracket, and the motor 3 is connected to the rotating shaft 13. A transmission cylinder 12 is fixedly connected to the side wall of the second mounting frame 18 through a bracket. The transmission cylinder 12 is rotatably connected to the rotating cylinder 19, and a feeding hopper 4 is arranged on the side wall of the transmission cylinder 12. A bent pipe 6 is connected between the two rotating cylinders 19 through bearings. A plurality of spiral grooves are opened on the inner side wall of the rotating cylinder 19, and a spiral plate 20 is welded in the spiral groove.

[0032] The air supply assembly 28 is disposed on the side wall of the second mounting frame 18 and is used to deliver gas into the rotating cylinder 19;

[0033] The heat circulation assembly 26 is disposed on the side wall of the second mounting frame 18 and is used to perform heat exchange on the gas exhausted from the rotating cylinder 19;

[0034] The vibration assembly 27 is disposed on the circumference of the rotating cylinder 19 and is used to impact the spiral plate 20 .

[0035] The motor 3 is started, and the motor 3 drives the rotating shaft 13 to rotate. The rotating shaft 13 drives the second gear 11 to rotate while rotating. The second gear 11 drives one of the first gears 10 to rotate. The rotation of the first gear 10 drives the other first gear 10 to rotate in the opposite direction, so that the two rotating cylinders 19 rotate in the opposite direction. When the wet sand enters the rotating cylinder 19, the sand is driven to move forward and roll through the spiral groove in the rotating cylinder 19.

[0036] In one embodiment, Figure 1 and Figure 2 As shown, two heating cylinders 5 are fixedly connected between the two first mounting frames 1. The heating cylinder 5 is connected to the rotating cylinder 19 through a bearing. A heating coil 25 is arranged between the heating cylinder 5 and the rotating cylinder 19. An electromagnetic heater 17 is arranged around the heating cylinder 5. Both ends of the heating coil 25 are connected to the electromagnetic heater 17.

[0037] The electromagnetic heater 17 is started, and the electromagnetic heater 17 energizes the heating coil 25. After the heating coil 25 is energized, eddy current heating is performed on the wet sand inside the rotating cylinder 19, so that the moisture in the sand can be evaporated.

[0038] In one embodiment, Figure 1 , Figure 4 , Figure 5 As shown, the inner wall of the transmission cylinder 12 is connected to a screw rod 15 via a bearing, and the portion of the screw rod 15 located outside the transmission cylinder 12 is transmission-connected to the rotating shaft 13 via a synchronous belt transmission member 14 .

[0039] The rotating shaft 13 drives the screw rod 15 to rotate through the synchronous belt transmission member 14 , and the rotation of the screw rod 15 transports the wet sand into the rotating cylinder 19 .

[0040] In one embodiment, Figure 4 and Figure 5 As shown, the air supply assembly 28 includes a fan 2 and an air inlet pipe 7. An air inlet cylinder 9 is fixedly connected to the peripheral side of the transmission cylinder 12. The air inlet cylinder 9 is provided with a plurality of air inlets connected to the rotating cylinder 19. The air inlet cylinder 9 is connected to the air inlet pipe 7, and the air inlet pipe 7 is connected to the fan 2.

[0041] Start the fan 2, which transports air to one of the rotating cylinders 19 through the air inlet pipe 7 and the air inlet cylinder 9. The air passes through the two rotating cylinders 19, bringing out the water vapor in the two rotating cylinders 19, to prevent the water vapor from being present in the rotating cylinder 19 for a long time and unable to be discharged, thereby affecting the sand drying effect and drying efficiency.

[0042] In one embodiment, Figure 4 and Figure 5 As shown, the heat circulation component 26 includes a heat exchange tube 8 and a discharge barrel 16. The heat exchange tube 8 is fixedly connected to the side wall of the second mounting frame 18. The air inlet pipe 7 is fixedly connected to the heat exchange tube 8. One of the rotating cylinders 19 is connected to the discharge barrel 16 through a bearing. The discharge barrel 16 is connected to the heat exchange tube 8 through a pipeline, and a discharge port is opened on the side of the discharge barrel 16.

[0043] The heated water vapor enters the heat exchange tube 8 through the discharge cylinder 16, and at this time exchanges heat with the cold air in the air inlet pipe 7, so that the water vapor discharged from the rotating cylinder 19 is cooled down, while the air just entering the rotating cylinder 19 is heated. The heated air performs hot air drying on the wet sand, thereby improving the drying effect and drying efficiency of the sand, saving energy, and making full use of the discharged water vapor.

[0044] In one embodiment, Figure 5 , Figure 6 , Figure 7 , Figure 8As shown, the vibration assembly 27 includes a fixed ring 21 and a ball 23. Two symmetrical fixed rings 21 are fixedly connected to the circumference of the heating cylinder 5. A plurality of impact block holes are provided on the side wall of the rotating cylinder 19. A fixed frame 22 is fixedly connected to the circumference of the rotating cylinder 19. A striker block 24 is slidably connected through the fixed frame 22. A spring is fixedly connected between the striker block 24 and the fixed frame 22. A ball 23 is provided on the top of the striker block 24. The ball 23 abuts against the fixed ring 21. A plurality of protrusions are provided on the inner wall of the fixed ring 21. The striker block 24 extends into the spiral groove through the impact hole.

[0045] When the rotating drum 19 rotates, it also drives the fixed frame 22 to rotate, and the fixed frame 22 drives the impact block 24 to rotate. During the rotation of the impact block 24, the spring and the convex block on the inner wall of the fixed ring 21 cooperate to drive the impact block 24 to continuously reciprocate and impact the spiral plate 20, so as to shake off the sand attached to the surface of the spiral plate 20, effectively avoiding the wet sand from adhering to the surface of the spiral plate 20 at the beginning of drying, rotating with the spiral plate 20, and failing to complete the tumbling operation, thereby improving the drying efficiency of the sand.

[0046] The above embodiment discloses a sand drying device, and its specific working principle and process are as follows:

[0047] S1: first pour wet sand from the feed hopper 4, the sand falls into the transmission cylinder 12 from the feed hopper 4, start the motor 3, the motor 3 drives the rotating shaft 13 to rotate, the rotating shaft 13 drives the screw rod 15 to rotate through the synchronous belt transmission member 14, and the screw rod 15 rotates to transport the wet sand into the rotating cylinder 19;

[0048] S2: The rotating shaft 13 rotates while driving the second gear 11 to rotate, and the second gear 11 drives one of the first gears 10 to rotate, and the rotation of the first gear 10 drives the other first gear 10 to rotate in the opposite direction, so that the two rotating cylinders 19 rotate in the opposite direction. When the wet sand enters the rotating cylinder 19, the spiral groove in the rotating cylinder 19 drives the sand to move forward and roll;

[0049] S3: Start the electromagnetic heater 17, the electromagnetic heater 17 energizes the heating coil 25, and the heating coil 25 performs eddy current heating on the wet sand inside the rotating cylinder 19 after being energized, so that the moisture in the sand can be evaporated;

[0050] S4: Start the fan 2, which transports air to one of the rotating cylinders 19 through the air inlet pipe 7 and the air inlet cylinder 9. The air passes through the two rotating cylinders 19 and takes out the water vapor in the two rotating cylinders 19, so as to prevent the water vapor from being in the rotating cylinder 19 for a long time and unable to be discharged, thereby affecting the sand drying effect and drying efficiency;

[0051] S5: The heated water vapor enters the heat exchange tube 8 through the discharge cylinder 16, and at this time, heat is exchanged with the cold air in the air inlet pipe 7, so that the water vapor discharged from the rotating cylinder 19 is cooled down, while the air just entering the rotating cylinder 19 is heated, and the heated air performs hot air drying on the wet sand, thereby improving the drying effect and drying efficiency of the sand, saving energy, and making full use of the discharged water vapor;

[0052] S6: When the rotating drum 19 rotates, it drives the fixed frame 22 to rotate, and the fixed frame 22 drives the impact block 24 to rotate. During the rotation of the impact block 24, the spring and the convex block on the inner wall of the fixed ring 21 cooperate to drive the impact block 24 to continuously reciprocate and impact the spiral plate 20, so as to shake off the sand attached to the surface of the spiral plate 20, effectively avoiding that the wet sand is attached to the surface of the spiral plate 20 at the beginning of drying, and follows the spiral plate 20 to rotate, and cannot complete the tumbling operation, thereby improving the drying efficiency of the sand;

[0053] S7: After the sand is dried, it is discharged from the discharge port below the discharge cylinder 16.

[0054] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A sand drying equipment, characterized in that: The invention comprises a first mounting frame (1), a second mounting frame (18), a heat circulation assembly (26), a vibration assembly (27), and an air supply assembly (28); two rotating cylinders (19) are connected between the two first mounting frames (1) via bearings; a first gear (10) is fixedly connected to the circumference of the rotating cylinder (19); the two first gears (10) are meshed; a rotating shaft (13) is connected between the two first mounting frames (1) and the second mounting frame (18) via bearings; the rotating shaft (13) is fixedly connected to a second gear (11); the second gear (11) is connected to one of the first and second mounting frames (18); The first gear (10) is meshed with the second mounting frame (18), the side wall of the second mounting frame (18) is fixedly connected to a motor (3) through a bracket, the motor (3) is connected to a rotating shaft (13), the side wall of the second mounting frame (18) is fixedly connected to a transmission cylinder (12) through a bracket, the transmission cylinder (12) is rotatably connected to a rotating cylinder (19), a feed hopper (4) is arranged on the side wall of the transmission cylinder (12), a bent pipe (6) is connected between the two rotating cylinders (19) through a bearing, a plurality of spiral grooves are opened on the inner side wall of the rotating cylinder (19), and a spiral plate (20) is welded in the spiral groove; The air supply assembly (28) is arranged on the side wall of the second mounting frame (18) and is used to transport gas into the rotating cylinder (19); The heat circulation component (26) is arranged on the side wall of the second mounting frame (18) and is used to perform heat exchange on the gas exhausted from the rotating cylinder (19); The vibration component (27) is arranged on the circumference of the rotating cylinder (19) and is used to impact the spiral plate (20).

2. The sand drying equipment according to claim 1, characterized in that: Two heating cylinders (5) are fixedly connected between the two first mounting frames (1); the heating cylinder (5) is connected to the rotating cylinder (19) via a bearing; a heating coil (25) is arranged between the heating cylinder (5) and the rotating cylinder (19); an electromagnetic heater (17) is arranged on the circumference of the heating cylinder (5); and both ends of the heating coil (25) are connected to the electromagnetic heater (17).

3. The sand drying equipment according to claim 1, characterized in that: The inner wall of the transmission cylinder (12) is connected to a screw rod (15) via a bearing, and the portion of the screw rod (15) located outside the transmission cylinder (12) is transmission-connected to the rotating shaft (13) via a synchronous belt transmission member (14).

4. The sand drying equipment according to claim 1, characterized in that: The air supply assembly (28) comprises a fan (2) and an air inlet pipe (7); an air inlet cylinder (9) is fixedly connected to the peripheral side of the transmission cylinder (12); the air inlet cylinder (9) is provided with a plurality of air inlets connected to the rotating cylinder (19); the air inlet cylinder (9) is connected to the air inlet pipe (7); and the air inlet pipe (7) is connected to the fan (2).

5. The sand drying equipment according to claim 4, characterized in that: The heat circulation component (26) comprises a heat exchange tube (8) and a discharge barrel (16); the heat exchange tube (8) is fixedly connected to the side wall of the second mounting frame (18); the air inlet pipe (7) is fixedly connected to the heat exchange tube (8); one of the rotating barrels (19) is connected to the discharge barrel (16) via a bearing; the discharge barrel (16) is connected to the heat exchange tube (8) via a pipeline; and a discharge port is provided on the peripheral side of the discharge barrel (16).

6. The sand drying equipment according to claim 2, characterized in that: The vibration assembly (27) comprises a fixing ring (21) and a ball (23). Two symmetrical fixing rings (21) are fixedly connected to the circumference of the heating cylinder (5). A plurality of impact block holes are opened on the side wall of the rotating cylinder (19). A fixing frame (22) is fixedly connected to the circumference of the rotating cylinder (19). A collision block (24) is slidably connected through the fixing frame (22). A spring is fixedly connected between the collision block (24) and the fixing frame (22). A ball (23) is arranged at the top end of the collision block (24). The ball (23) abuts against the fixing ring (21). A plurality of protrusions are arranged on the inner side wall of the fixing ring (21). The collision block (24) extends into the spiral groove through the collision hole.

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