Raw material sand drying device for concrete
By introducing a turning and sliding material spreading component and a heat-conducting preheating structure into the raw sand drying device, the problem of slow heat penetration is solved, achieving efficient sand drying and sand drying, and reducing energy consumption and production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HUJIA HOUSING IND CO LTD
- Filing Date
- 2025-03-26
- Publication Date
- 2026-04-24
AI Technical Summary
The existing raw sand drying equipment lacks an auxiliary material spreading mechanism, which makes it difficult for heat to penetrate quickly, affecting drying efficiency and increasing energy consumption, thus increasing the cost of concrete production.
A raw material sand drying device for concrete was designed. It adopts a flipping and sliding method to increase the spreading range and area of the raw material sand through the spreading and feeding components. It also uses a heat-conducting jacket and spiral blades for preheating treatment and combines screening function to improve drying efficiency and effect.
By using a flipping, sliding, and preheating mechanism, the contact range and area between the raw sand and heat are increased, thereby improving drying efficiency, reducing energy consumption, and lowering concrete production costs.
Smart Images
Figure CN224162838U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete technology, specifically to a raw material sand drying device for concrete. Background Technology
[0002] Concrete is an artificial stone material made by mixing cementitious materials (such as cement), granular aggregates (such as sand and gravel), water, and, if necessary, admixtures and additives in a certain proportion, uniformly mixing, compacting, and curing. During the production process, the raw sand needs to be dried using a drying device to remove the moisture.
[0003] Currently, raw sand drying devices lack auxiliary material spreading mechanisms. Typically, these devices dry concrete raw sand using only heating, air supply, and stirring. However, due to severe sand accumulation, heat cannot penetrate quickly, affecting drying efficiency and increasing energy consumption and concrete production costs. Therefore, a concrete raw sand drying device is proposed to incorporate an auxiliary material spreading mechanism. By using a flipping and sliding method, the raw sand is automatically rolled and spread out, increasing the contact area and surface area between the raw sand and heat, improving drying efficiency, reducing concrete production costs, and ultimately enhancing the overall performance. Summary of the Invention
[0004] To address the problems in the existing technology, this utility model provides a raw material sand drying device for concrete, which allows the raw material sand to be automatically rolled and spread out by means of flipping and sliding, thereby improving the use effect.
[0005] The technical solution adopted by this utility model to solve its technical problem is a raw material sand drying device for concrete, including a shell, a material spreading component and a feeding component. The material spreading component is rotatably connected inside the shell. Drying fans are bolted to both sides of the top of the shell. The feeding component is arranged between the drying fans at the top of the shell. A dust removal component is arranged at the back of the shell.
[0006] The material spreading assembly includes a rotating plate, the top and bottom surfaces of which are connected by adhesive rubber pads. A drying trough is provided inside the housing, and a recycling trough is provided at the bottom of the drying trough inside the housing. A sieve plate is bolted to the top of the recycling trough.
[0007] By adopting the above technical solution, an auxiliary material spreading mechanism can be added. By using flipping, rolling, and sliding methods, the raw material sand can be spread out to increase the range and area of contact with the drying heat. This not only improves the drying efficiency but also helps to assist in screening and separation, greatly increasing the functionality and practicality of the device and reducing the production cost of concrete.
[0008] Specifically, the feeding assembly includes a sleeve, and the housing is connected to the sleeve by bolts. A heat-conducting sleeve is installed at one end of the sleeve via a bearing. A spiral blade is connected to the outer surface of the heat-conducting sleeve by bolts. A heat-conducting coil is connected to the other end of the sleeve by bolts, and the sleeve is sleeved to the heat-conducting coil. The air inlet end of the heat-conducting coil is connected to the drying tank, and the air outlet end of the heat-conducting coil is located at the back of the sleeve.
[0009] By adopting the above technical solution, an auxiliary preheating mechanism can be added. While using the screw feeder, the heat generated during drying can be recovered. Then, the raw material sand in the feeding process can be preheated by contact and heat conduction.
[0010] Specifically, a servo motor is bolted to the surface of the housing, and the servo motor is connected to a rotating plate via a drive shaft. A guide channel is provided at the top of the drying tank, and the guide channel is connected to a drying fan. An air outlet is provided in the guide channel.
[0011] By adopting the above technical solutions, the guide channel and the air outlet can transport the hot air generated by the drying fan to the surface of the raw material sand for drying.
[0012] Specifically, the top of the sleeve is bolted to a feeding hopper, the bottom of the sleeve has a first discharge port, and the air outlet of the first discharge port is connected to a drying tank. The surface of the sleeve is bolted to a stepper motor, and the stepper motor is connected to a heat-conducting sleeve via a drive shaft.
[0013] By adopting the above technical solution, the feeding hopper and the first discharge port facilitate the feeding and discharging of the sleeve, and the stepper motor facilitates the rotation of the heat-conducting sleeve for spiral feeding.
[0014] Specifically, the dust removal assembly includes a dust storage tank, an exhaust fan is bolted to the outside of the dust storage tank, and the air inlet of the exhaust fan is located inside the dust storage tank. A filter plate is bolted to one side of the exhaust fan inside the dust storage tank, and a discharge port is provided at the bottom of the dust storage tank.
[0015] By adopting the above technical solution, the dust generated during the drying process can be collected and recycled using the negative pressure generated by suction, so that subsequent operators can clean it regularly and improve the working environment inside the device.
[0016] Specifically, a second discharge port is provided on one side of the shell, and the second discharge port is connected to the drying tank, and a pull groove is slidably connected in the recycling tank.
[0017] By adopting the above technical solution, the second discharge port facilitates the discharge of unqualified raw sand from the shell, and the trough facilitates the recovery of qualified raw sand for easy removal by operators.
[0018] The outstanding and beneficial technical effects of this utility model compared to the prior art are:
[0019] This utility model discloses a raw sand drying device for concrete. Through the inclusion of a shell, rotating plate, rubber pad, drying trough, recovery trough, and sieve plate, it adds an auxiliary material spreading mechanism. Utilizing sliding, flipping, and rolling methods, the raw sand is spread out, increasing the range and area of contact with drying heat. This not only improves drying efficiency but also assists in screening and separation, greatly enhancing the functionality and practicality of the device and helping to reduce concrete production costs. Furthermore, the device, through the inclusion of a sleeve, heat-conducting sleeve, spiral blades, and heat-conducting coil, adds an auxiliary preheating mechanism. Utilizing a heat-conducting and spiral feeding structure, it recovers heat generated during drying during the feeding process, preheating the raw sand and thus improving subsequent drying efficiency. This further reduces energy consumption and improves the device's performance. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0022] Figure 3 This is a schematic diagram of the material laying component structure of this utility model;
[0023] Figure 4 This is a cross-sectional view of the feeding assembly of this utility model;
[0024] Figure 5 This is a cross-sectional view of the heat-conducting sleeve of this utility model;
[0025] Figure 6 This is a cross-sectional view of the dust removal component of this utility model;
[0026] Figure 7 This is a side sectional view of the drying tank of this utility model;
[0027] In the diagram: 1. Shell; 101. Drying tank; 102. Recycling tank; 103. Screen plate; 104. Second discharge port; 105. Guide channel; 106. Air nozzle; 107. Pulling channel; 2. Material spreading assembly; 201. Rotating plate; 202. Rubber pad; 3. Drying fan; 4. Feeding assembly; 401. Sleeve; 402. Heat-conducting sleeve; 403. Spiral blade; 404. Heat-conducting coil; 405. Feeding hopper; 406. First discharge port; 5. Dust removal assembly; 501. Dust storage tank; 502. Exhaust fan; 503. Filter plate; 504. Discharge port; 6. Servo motor; 7. Stepper motor. Detailed Implementation
[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0029] To facilitate the automatic tumbling and spreading of the raw sand using a flipping and sliding mechanism, thereby improving its performance, such as... Figure 1-3 As shown, the present invention provides a concrete raw material sand drying device, which includes a shell 1, a material spreading component 2 and a feeding component 4. The material spreading component 2 is rotatably connected inside the shell 1. Drying fans 3 are bolted to both sides of the top of the shell 1. The feeding component 4 is arranged between the drying fans 3 on the top of the shell 1. A dust removal component 5 is arranged on the back of the shell 1.
[0030] The material spreading assembly 2 includes a rotating plate 201. The top and bottom surfaces of the rotating plate 201 are connected to rubber pads 202 by adhesive bonding. A drying trough 101 is provided inside the housing 1. A recycling trough 102 is provided at the bottom of the drying trough 101 inside the housing 1. A sieve plate 103 is bolted to the top of the recycling trough 102.
[0031] During use, the auxiliary material spreading mechanism can be added by rotating plate 201, rubber pad 202, drying tank 101, recycling tank 102 and screen plate 103. The raw material sand can be spread out by flipping, rolling and sliding, increasing the range and area of contact with drying heat. This not only improves drying efficiency, but also helps to screen and separate the materials, greatly increasing the functionality and practicality of the device, and also helps to reduce the production cost of concrete.
[0032] To improve the effectiveness of the device, for example, such as Figure 4 , Figure 5 As shown, this utility model also includes a feeding assembly 4 comprising a sleeve 401, and the housing 1 is bolted to the sleeve 401. One end of the sleeve 401 is fitted with a heat-conducting sleeve 402 via a bearing. The outer surface of the heat-conducting sleeve 402 is bolted to a spiral blade 403. The other end of the sleeve 401 is bolted to a heat-conducting coil 404, and the sleeve 401 is sleeved to the heat-conducting coil 404. The air inlet of the heat-conducting coil 404 is connected to the drying tank 101, and the air outlet of the heat-conducting coil 404 is located on the back of the sleeve 401.
[0033] In use, the auxiliary preheating mechanism can be added through the sleeve 401, heat-conducting sleeve 402, spiral blade 403 and heat-conducting coil 404. While using the spiral feeding, the heat generated by drying is recovered in an auxiliary manner, and the raw material sand in the feeding process is preheated in an auxiliary manner through contact and heat conduction.
[0034] For example, such as Figure 1 , 2 As shown, the present invention also includes a servo motor 6 connected to the surface of the housing 1 by bolts, and the servo motor 6 is connected to the rotating plate 201 by a drive shaft. A guide groove 105 is provided at the top of the drying tank 101, and the guide groove 105 is connected to the drying fan 3. An air outlet 106 is provided in the guide groove 105.
[0035] In use, the rotating plate 201 is driven to rotate back and forth by the servo motor 6, and its operating angle is adjusted. The hot air generated by the drying fan 3 can be delivered to the surface of the raw material sand for drying through the guide channel 105 and the air outlet 106.
[0036] For example, such as Figure 1 , 4 As shown, the present invention also includes a feeding hopper 405 bolted to the top of the sleeve 401, a first discharge port 406 opened at the bottom of the sleeve 401, and the air outlet end of the first discharge port 406 connected to the drying tank 101. A stepper motor 7 is bolted to the surface of the sleeve 401, and the stepper motor 7 is connected to the heat-conducting sleeve 402 through a drive shaft.
[0037] In use, the feeding hopper 405 and the first discharge port 406 facilitate the feeding and discharging of the sleeve 401, and the stepper motor 7 facilitates the rotation of the heat-conducting sleeve 402 for spiral feeding.
[0038] For example, such as Figure 6 As shown, the present invention also includes the dust removal component 5, which includes a dust storage tank 501. An exhaust fan 502 is bolted to the outside of the dust storage tank 501, and the air inlet of the exhaust fan 502 is located inside the dust storage tank 501. A filter plate 503 is bolted to one side of the exhaust fan 502 inside the dust storage tank 501. A discharge port 504 is provided at the bottom of the dust storage tank 501.
[0039] During use, the dust collection tank 501, exhaust fan 502, filter plate 503 and discharge port 504 can collect the generated dust by using the negative pressure generated by suction during the drying process, so that the operators can clean it regularly and improve the working environment inside the device.
[0040] For example, such as Figure 2 As shown, a second discharge port 104 is provided on one side of the housing 1, and the second discharge port 104 is connected to the drying tank 101. A pull groove 107 is slidably connected in the recycling tank 102.
[0041] During use, the unqualified raw sand is easily sent out of the shell 1 through the second discharge port 104, and the qualified raw sand is easily recovered through the pull groove 107 so that the operator can take it out.
[0042] In use, the operator first feeds the raw sand into the feeding hopper 405, and then feeds it to one end of the drying trough 101 through the feeding component 4, so that it falls on the rubber pad 203 of the rotating plate 201. Since the drying trough 101 is an inclined conical structure, the raw sand begins to roll towards the other end of the drying trough 101 under its own weight. At the same time, the operator manually turns on the servo motor 6 to drive the rotating plate 201 to rotate back and forth 30°, so that the raw sand is automatically spread out and avoids local accumulation. Meanwhile, the operator manually turns on the drying fan 3, which delivers hot air to the raw sand through the guide channel 105 and the air nozzle 106 for drying. This automatic spreading method can increase the contact range and area between the raw sand and the drying heat, which can not only improve the drying efficiency, but also help reduce the production cost of concrete.
[0043] Moreover, after a single drying process, the rotating plate 201 is driven to rotate 360° by the servo motor 6, which allows qualified raw sand to pass through the screen plate 103 and enter the pull groove 107 of the recycling tank 102 for recycling, while unqualified raw sand remains on the surface of the screen plate 103 and is pushed and rotated by the other end of the rotating plate 201 to the second discharge port 104 to complete the discharge, thereby simultaneously realizing the function of auxiliary screening and separation.
[0044] During continuous drying operations, some of the heat in the drying tank 101 enters the heat-conducting sleeve 402 and the heat-conducting coil 404. By using the heat conduction method, the heat-conducting sleeve 402 and the spiral blades 403 can be stirred and preheated while rotating and conveying the raw sand, thereby improving the performance of the device, reducing resource waste, and further improving drying efficiency. The overall structure is simple and easy to operate, and the use is more flexible and efficient.
[0045] In the description of this utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In this utility model, unless otherwise expressly specified and limited, the terms "installation," "setting," "connection," "fixing," and "screw-on," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection.
[0047] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.
Claims
1. A drying device for raw sand used in concrete, characterized in that, Includes a housing (1), a material spreading assembly (2) and a feeding assembly (4). The material spreading assembly (2) is rotatably connected inside the housing (1). Drying fans (3) are bolted to both sides of the top of the housing (1). The feeding assembly (4) is located between the drying fans (3) at the top of the housing (1). A dust removal assembly (5) is located on the back of the housing (1). The material spreading assembly (2) includes a rotating plate (201), the top and bottom surfaces of the rotating plate (201) are connected by adhesive rubber pads (202), a drying trough (101) is provided inside the housing (1), a recycling trough (102) is provided at the bottom of the drying trough (101) inside the housing (1), and a sieve plate (103) is bolted to the top of the recycling trough (102).
2. The concrete raw material sand drying device according to claim 1, characterized in that, The feeding assembly (4) includes a sleeve (401), and the housing (1) is connected to the sleeve (401) by bolts. A heat-conducting sleeve (402) is installed at one end of the sleeve (401) by a bearing. A spiral blade (403) is connected to the outer surface of the heat-conducting sleeve (402) by bolts. A heat-conducting coil (404) is connected to the other end of the sleeve (401) by bolts. The sleeve (401) is sleeved and connected to the heat-conducting coil (404). The air inlet end of the heat-conducting coil (404) is connected to the drying tank (101), and the air outlet end of the heat-conducting coil (404) is located on the back of the sleeve (401).
3. The concrete raw material sand drying device according to claim 1, characterized in that, The surface of the housing (1) is connected to a servo motor (6) by bolts, and the servo motor (6) is connected to a rotating plate (201) by a drive shaft. A guide groove (105) is provided at the top of the drying tank (101), and the guide groove (105) is connected to the drying fan (3). An air outlet (106) is provided in the guide groove (105).
4. The concrete raw material sand drying device according to claim 2, characterized in that, The top of the sleeve (401) is connected to a feeding hopper (405) by bolts. The bottom of the sleeve (401) is provided with a first discharge port (406), and the air outlet of the first discharge port (406) is connected to the drying tank (101). The surface of the sleeve (401) is connected to a stepper motor (7) by bolts, and the stepper motor (7) is connected to the heat-conducting sleeve (402) through a drive shaft.
5. A raw material sand drying device for concrete according to claim 1, characterized in that, The dust removal assembly (5) includes a dust storage tank (501), an exhaust fan (502) is bolted to the outside of the dust storage tank (501), and the air inlet of the exhaust fan (502) is located inside the dust storage tank (501). A filter plate (503) is bolted to one side of the exhaust fan (502) inside the dust storage tank (501). A discharge port (504) is provided at the bottom of the dust storage tank (501).
6. A raw material sand drying device for concrete according to claim 1, characterized in that, The shell (1) has a second discharge port (104) on one side, and the second discharge port (104) is connected to the drying tank (101). The recycling tank (102) has a pull groove (107) slidably connected inside.