Low-temperature drying device for resin precoated sand

Abstract

The utility model provides a low-temperature drying device for resin precoated sand, which belongs to the technical field of resin precoated sand processing and comprises a drying box, a feeding port is embedded in the top of the drying box, a base is arranged below the drying box, and a conveying belt for conveying the resin precoated sand is arranged between the base and the drying box. A temporary storage plate is arranged in an inner cavity of the drying box, a driving part for vibrating the temporary storage plate is arranged at the bottom of the drying box, an air heater is embedded in the side wall of the drying box, and when coated quartz sand is subjected to low-temperature drying treatment, drying treatment is carried out in the drying box, so that resin coated sand is prevented from being blown out, and waste is prevented; and meanwhile, hot air of the hot air blower can heat the inner space of the drying box, the resin precoated sand is blown away and subjected to low-temperature drying treatment in the drying box, the resin precoated sand is evenly heated, and therefore the drying treatment effect of the resin precoated sand is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of resin coated sand processing, in particular to a low-temperature drying device for resin coated sand. Background Art

[0002] Resin coated sand is an essential material for fracturing sand prevention and fracturing tail sealing. After the sand is coated, the resin coated sand has a certain viscosity and sticks to each other, so it needs to be dried quickly;

[0003] A related art (publication number: CN209697968U) discloses a drying device for coated sand, and the disclosed technical solution is as follows: after the heating element and the fan in the air inlet pipe are powered on, hot air will be blown into the inner cavity of the drying chamber, and at least two air inlet pipes blow into the drying chamber to form convection hot air, and the coated sand to be dried arranged on the inner bottom wall of the drying chamber is quickly dried under the circulation of hot air, and water vapor can be transmitted through the air holes, thereby greatly improving the drying efficiency;

[0004] In the above disclosed technical solutions, the following problems are found in the related technologies: the resin coated sand is heated in the past, and the test shows that this method causes certain damage to the secondary softening of the resin sand, and the energy consumption is also relatively large. In addition, the resin coated sand is dried by blowing hot air to the resin coated sand on the conveyor belt, and the hot air is dried in the external environment. The hot air has a large fluidity, and the drying efficiency of the resin coated sand is low. In addition, the external environment is changeable, which will blow away the coated sand after coating, and the resin coated sand is easy to stick to the surface of the conveying machine during the discharge and transportation process. In this regard, we propose a new type of low-temperature drying device for resin coated sand;

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background technology section of this application, and therefore may include prior art information that does not constitute known to ordinary technicians in the field. Utility Model Content

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art or related technology. In order to solve the problem of drying quartz sand after coating in the above-mentioned prior art, the utility model provides a low-temperature drying device for resin coated sand, which adopts a hot air drying mechanism combined with a dispersed discharge mechanism to achieve the effect of improving the quality of coated sand. Its specific technical solution is:

[0007] A low-temperature drying device for resin-coated sand comprises a drying box, a feeding port is embedded in the top of the drying box, a base is arranged below the drying box, a conveyor belt for conveying resin-coated sand is arranged between the base and the drying box, a temporary storage plate is arranged in the inner cavity of the drying box, a driving component for vibrating the temporary storage plate is arranged at the bottom of the drying box, a discharge guide plate is arranged between the inner wall of the drying box and the conveyor belt, a hot air blower is embedded in the side wall of the drying box, a scraper plate is rotatably arranged between the base and the conveyor belt, and an exhaust assembly is arranged on the outer cover of the feeding port.

[0008] In the above technical solution, the exhaust assembly includes a feed box, the feed box cover is arranged on the outside of the feed port, the side wall of the feed box is provided with a groove cavity for probing into the feeding conveyor, the inner wall of the groove cavity is provided with a shielding cloth, and the two corners of the shielding cloth are fixed to the inner wall of the feed box, and a traction rope is provided between the other two corners of the shielding cloth and the inner wall of the feed box.

[0009] The driving component includes a movable rod, which passes through the bottom of the drying box and extends to the inner cavity. A movable plate is fixedly installed at one end of the movable rod located outside the drying box. The temporary storage plate is arranged between the inner wall of the drying box and the movable rod. A reciprocating driving component for swinging the position of the movable plate is arranged at the bottom of the drying box.

[0010] The reciprocating drive assembly includes a cam rotatably arranged at the bottom of the drying box, an elastic member is sleeved on the outside of the movable rod, and the elastic member is arranged between the movable plate and the bottom of the drying box, and the cam is attached to the side wall of the movable plate.

[0011] One side of the temporary storage plate is rotatably arranged on the outer wall of the movable rod, and the other side of the temporary storage plate is rotatably arranged with one end of a transfer extension piece, and the other end of the transfer extension piece is rotatably arranged on the inner wall of the drying box.

[0012] A guide plate is fixedly mounted on the inner wall of the drying box, and the guide plate is arranged opposite to the hot air blower. A guide groove is arranged on one side of the guide plate opposite to the hot air blower.

[0013] One side of the scraper plate is attached to the side wall of the conveyor belt, and an adjusting component is arranged between the scraper plate and the inner wall of the base.

[0014] The adjusting component comprises an electric telescopic member, a movable end of which is rotatably arranged on the side wall of the scraper plate, and the other end of which is rotatably arranged on the inner wall of the base.

[0015] One side of the discharge guide plate is fixedly mounted on the inner wall of the drying box, and the other side of the discharge guide plate is attached to the side wall of the conveyor belt. The drying box is provided with a discharge port on the side wall opposite to the conveyor belt, and the discharge guide plate passes through the discharge port. The movable rod passes through the discharge guide plate and extends to the outside.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the resin coated sand low temperature drying device:

[0017] 1. By drying the resin-coated sand inside the drying box, the resin-coated sand can be prevented from being blown out to prevent waste. At the same time, the hot air from the hot air blower will heat the internal space of the drying box. By blowing the resin-coated sand away and drying it at low temperature in the drying box, the resin-coated sand can be evenly heated, thereby improving the drying effect of the resin-coated sand.

[0018] 2. The hot air inside the drying box is discharged to the outside through the feed port. The resin coated sand driven by the wind is shielded by the shielding cloth to prevent it from being blown out. At the same time, the shielding cloth is extended through the traction ropes at both ends below, thereby reducing the impact of the wind inside the drying box, thereby ensuring the efficiency of drying the resin coated sand.

[0019] 3. After the resin coated sand is blown into the drying box by the hot air blower, the resin coated sand is dispersed and dried through the bulk holes and discharged from the outside of the drying box, avoiding the resin coated sand from sticking together and improving the drying effect.

[0020] 4. When the resin coated sand passes through the bulk material hole, the temporary storage plate vibrates up and down once. The vibration of the temporary storage plate prevents the bulk material hole from being blocked and can also prevent the resin coated sand from sticking to the surface of the temporary storage plate, thereby ensuring the smoothness of the discharge process.

[0021] 5. During the up and down vibration of the temporary storage plate, the temporary storage plate drives the guide seat to slide on the outside of the guide rod. The sliding cooperation between the guide seat and the guide rod ensures the stability of the vibration process of the temporary storage plate.

[0022] 6. After the conveyor belt has been used for a period of time, its surface will be worn. The movable end of the electric telescopic part drives the hinged scraper plate to rotate, and adjusts one side of the scraper plate to fit the surface of the conveyor belt, thereby ensuring the fit between the scraper plate and the conveyor belt, and preventing the resin-coated sand from sticking to the surface of the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of a low-temperature drying device for resin-coated sand according to the utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the base of the utility model;

[0025] Figure 3 This is a schematic diagram of the internal structure of the drying box of the utility model;

[0026] Figure 4 This is a partial structural sectional view of the drying box of the utility model;

[0027] Figure 5 for Figure 2 A local enlarged view of point A;

[0028] Figure 6 This is a partial structural sectional view of the feed box of the utility model;

[0029] in, Figures 1 to 6 The correspondence between the figure numbers and the component names is: 1-drying box, 2-base, 3-feeding port, 4-hot air blower, 5-conveyor belt, 6-scraper plate, 7-discharging guide plate, 8-movable rod, 9-temporary storage plate, 10-traction rope, 11-discharging port, 12-cam, 13-guide plate, 14-guide rod, 15-guide seat, 16-sealing plate, 17-mounting seat, 18-movable plate, 19-elastic part, 20-electric telescopic part, 21-feeding box, 22-shielding cloth, 23-groove cavity. DETAILED DESCRIPTION

[0030] 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.

[0031] The following is a combination of specific implementation cases and attached Figure 1-6 The present invention is further described below, but the present invention is not limited to these embodiments.

[0032] A low-temperature drying device for resin-coated sand comprises a drying box 1, and a feed port 3 is embedded on the top of the drying box 1. The feed port 3 is fixedly embedded and installed on the upper surface of the drying box 1, that is, the feed port 3 is connected to the inside of the drying box 1. A base 2 is arranged below the drying box 1, and a conveyor belt 5 for conveying resin-coated sand is arranged between the base 2 and the drying box 1. Fixed frames are fixedly installed on both side surfaces of the base 2, and the drying box 1 is fixedly installed between the two fixed frames, so that the drying box 1 is fixed above the base 2.

[0033] The two transmission rollers of the conveyor belt 5 are connected to rotate in parallel with each other inside the base 2. That is, the inner walls on both sides of the base 2 are symmetrically embedded with bearings, and the two ends of the central axis of the two transmission rollers are respectively embedded in the two bearings, and the conveyor belt 5 is sleeved on the outside of the two transmission rollers. The driving motor is fixed on the surface of the base 2 through a base, and the output shaft of the driving motor is fixedly connected to one end of one of the transmission rollers, so that the driving motor drives the transmission roller to rotate after connecting to an external power supply, so that the conveyor belt 5 moves continuously, thereby transporting the resin coated sand.

[0034] The inner cavity of the drying box 1 is provided with a temporary storage plate 9, the bottom of the drying box 1 is provided with a driving component for vibrating the temporary storage plate 9, and a discharge guide plate 7 is provided between the inner wall of the drying box 1 and the conveyor belt 5. The temporary storage plate 9 is vibrated up and down inside the drying box 1 by the driving component. The resin coated sand blown by the hot air blower 4 falls on the temporary storage plate 9 through the guide plate 13, and the resin coated sand falls on the discharge guide plate 7 evenly through the multiple bulk holes on the temporary storage plate 9. The resin coated sand is discharged from the outside through the discharge guide plate 7 and falls on the surface of the conveyor belt 5. One side of the discharge guide plate 7 is fixed to the inner wall of the drying box 1, and the other side of the discharge guide plate 7 is attached to the surface of the conveyor belt 5.

[0035] A hot air blower 4 is embedded in the side wall of the drying box 1. The hot air blower is the preferred product for upgrading the heat source of modern industry, and is the best hot air source configuration for automatic machinery such as hot air conveying furnaces, drying furnaces, ovens, and packaging machines. The hot air blower 4 consists of three parts: a blower, a heater, and a control circuit. It realizes the regulation of working temperature and air volume. A mounting hole connected to the inner cavity is opened on the surface of the drying box 1, and the hot air blower 4 is fixedly embedded in the mounting hole, and the air outlet of the hot air blower 4 is embedded in the drying box 1. A scraper plate 6 is rotatably arranged between the base 2 and the conveyor belt 5, and an exhaust assembly is provided on the outer cover of the feed port 3.

[0036] As the conveyor belt 5 conveys the resin-coated sand, when the resin-coated sand moves to the surface of the scraper plate 6, it will fall on the surface of the scraper plate 6. When the resin-coated sand sticks to the surface of the conveyor belt 5 and passes through the surface of the scraper plate 6, the scraper plate 6 scrapes off the resin-coated sand on the surface of the conveyor belt 5 to prevent the resin-coated sand from sticking to the surface of the conveyor belt 5, thereby ensuring the stability of the resin-coated sand conveying process and avoiding waste of the resin-coated sand.

[0037] With the above structure, when the coated quartz sand is subjected to low-temperature drying treatment, the air volume and working temperature of the hot air blower 4 are adjusted. After the resin-coated sand enters the drying box 1 through the feed pipe 3, the falling resin-coated sand is blown away and dried by the hot air blower 4, thereby improving the effect of the drying treatment of the resin-coated sand. By performing the drying treatment inside the drying box 1, the resin-coated sand is prevented from being blown out to the outside, thereby preventing waste. At the same time, the hot air from the hot air blower 4 will heat the internal space of the drying box 1. By blowing away the resin-coated sand and drying it at low temperature inside the drying box 1, the resin-coated sand is evenly heated, thereby improving the effect of the drying treatment of the resin-coated sand.

[0038] The exhaust assembly includes a feed box 21, the cover of the feed box 21 is arranged outside the feed port 3, and the side wall of the feed box 21 is provided with a slot 23 for probing into the feed conveyor. The inner wall of the slot 23 is provided with a shielding cloth 22, and the two corners of the shielding cloth 22 are fixed to the inner wall of the feed box 21, and a traction rope 10 is provided between the other two corners of the shielding cloth 22 and the inner wall of the feed box 21. The feeding conveyor is embedded in the slot 23 on one side of the feeding conveyor and corresponds to the feed port 3. The resin coated sand falling from the feeding conveyor falls into the feed port 3 in sequence, and the shielding cloth 22 is located above the feeding conveyor.

[0039] With the above structure, when the hot air blower 4 is working, the hot air inside the drying box 1 is discharged to the outside through the feed port 3. The resin coated sand driven by the wind is shielded by the shielding cloth 22 to prevent it from being blown out. At the same time, the shielding cloth 22 is extended by the traction ropes 10 at both ends below, thereby reducing the influence of the wind inside the drying box 1, thereby ensuring the efficiency of drying the resin coated sand.

[0040] The driving component includes a movable rod 8, which passes through the bottom of the drying box 1 and extends to the inner cavity. The movable rod 8 passes through the drying box 1 from the bottom and extends to the inside, so that the movable rod 8 slides in the through hole at the bottom of the drying box 1. A movable plate 18 is fixedly installed at one end of the movable rod 8 located outside the drying box 1, and the end of the movable rod 8 located outside the drying box 1 is vertically fixed to the surface of the movable plate 18. The temporary storage plate 9 is rotatably arranged between the inner wall of the drying box 1 and the movable rod 8. A reciprocating drive component for swinging the position of the movable plate 18 is arranged at the bottom of the drying box 1.

[0041] With the above structure, after the resin coated sand is blown into the drying box 1 by the hot air blower 4, it will fall on the surface of the temporary storage plate 9. The surface of the temporary storage plate 9 is sequentially and continuously provided with a plurality of bulking holes, so that the resin coated sand is dispersed and dried through the bulking holes and discharged to the outside of the drying box 1. This prevents the resin coated sand from sticking to each other and improves the drying effect. Through the reciprocating drive assembly, the temporary storage plate 9 is continuously tilted and swung around the shaft on the support seat 15 to prevent the bulking holes from being blocked.

[0042] It is worth noting that the reciprocating drive assembly includes a cam 12 that is rotatably arranged at the bottom of the drying box 1. The drive motor is fixed at the bottom of the drying box 1 through a base, and the cam 12 is fixedly sleeved on the outside of the output shaft of the drive motor through a mounting hole opened in the center, and the drive motor is electrically connected to the external power supply through a wire. The outer sleeve of the movable rod 8 is provided with an elastic member 19, and the elastic member 19 is arranged between the movable plate 18 and the bottom of the drying box 1. The elastic member 19 can compress the spring, and the cam 12 is fitted on the surface of the movable plate 18 to rotate. The elastic member 19 is movably sleeved on the outer surface of the movable rod 8 located between the bottom of the drying box 1 and the movable plate 18, so that the elastic member 19 is fitted on the outer surface of the movable rod 8 to telescopically slide. One end of the elastic member 19 is fixed to the bottom of the drying box 1, and the other end of the elastic member 19 is fixed to the surface of the movable plate 18. The cam 12 is fitted on the side wall of the movable plate 18, and the sealing plate 16 is installed obliquely on the upper surface of the mounting seat 17, and the right side of the sealing plate 16 is fitted obliquely on the inner wall of the drying box 1 to slide.

[0043] With the above structure, the driving motor of the cam 12 is connected to the power supply while the resin-coated sand passes through the bulk material hole. The cam 12 is made to rotate continuously in the circumferential direction. After the cam 12 rotates half a circle, it pushes one side of the movable plate 18 to move, so that the movable plate 18 drives the mounting seat 17 to move through the movable rod 8, so that the mounting seat 17 drives the temporary storage plate 9 to move to one side. At this time, the elastic member 19 is stretched and generates elastic force. When the cam 12 rotates half a circle again, the cam 12 is separated from the surface of the movable plate 18. At this time, the elastic force of the elastic member 19 is used to drive the movable plate 18 to move to the other side. The movable plate 18 drives the temporary storage plate 9 to move to the other side through the movable rod 8. That is, after the cam 12 rotates one circle, the temporary storage plate 9 swings up and down once with the shaft body on the support seat 15 as the center. The swinging temporary storage plate 9 prevents the bulk material hole from being blocked, and can also prevent the resin-coated sand from sticking to the surface of the temporary storage plate 9, thereby ensuring the smoothness of the discharge process.

[0044] In addition, one side of the temporary storage plate 9 is rotatably mounted on the outer wall of the movable rod 8, and one end of the transfer extension 14 is rotatably mounted on the other side of the temporary storage plate 9. The other end of the transfer extension 14 is rotatably mounted on the inner wall of the drying box 1. The support seat 15 is fixed to the inner wall of the drying box 1, and the shaft body is mounted on the surface of the drying box 1. One end of the transfer extension 14 is movably sleeved on the outside of the shaft body through the mounting hole opened on the surface. The other end of the transfer extension 14 and one side of the temporary storage plate 9 are both movably sleeved on the outside of another shaft body through the mounting holes opened.

[0045] With the above structure, the mounting seat 17 is fixedly sleeved at the end of the movable rod 8 located inside the drying box 1, and the rotating shaft is installed on the surface of the mounting seat 17. The other side of the temporary storage plate 9 is movably sleeved on the outside of the rotating shaft through the opening of the mounting hole. The installation position of the support seat 15 ensures that the temporary storage plate 9 is in an inclined position, thereby ensuring the stability of the temporary storage plate 9 during the vibration process.

[0046] In addition, a guide plate 13 is fixedly mounted on the inner wall of the drying box 1, and the guide plate 13 is arranged opposite to the hot air blower 4. A guide groove is arranged on the side of the guide plate 13 opposite to the hot air blower 4. Figure 4 As shown in the figure: the shape of the guide plate 13 forms a guide groove on its surface, and the guide groove is opposite to the hot air blower 4, so that the hot air blower 4 blows the falling resin coated sand into the guide groove during the drying process. The hot air blows the resin coated sand into the guide groove, and the resin coated sand falls on the surface of the temporary storage plate 9 along the guide plate 13 through the guidance of the guide groove, thereby ensuring the stability of the resin coated sand drying process.

[0047] Furthermore, one side of the scraper plate 6 is attached to the side wall of the conveyor belt 5, and an adjustment component is provided between the scraper plate 6 and the inner wall of the base 2. Bearings are respectively embedded and installed in the inner walls of both sides of the base 2, one end of the two shaft bodies is respectively embedded and installed inside the two bearings, and the other ends of the two shaft bodies are respectively fixedly installed on both sides of the scraper plate 6. The scraper plate 6 is rotated between the base 2 and the conveyor belt 5, and the scraper plate 6 is rotated by the adjustment component, and one side of the scraper plate 6 is rotated to a position that is attached to the surface of the conveyor belt 5, thereby ensuring the adhesion between the scraper plate 6 and the surface of the conveyor belt 5, thereby improving the discharge effect of the resin coated sand.

[0048] The adjusting component includes an electric telescopic member 20, the movable end of which is rotatably arranged on the side wall of the scraper plate 6, and the other end of which is rotatably arranged on the inner wall of the base 2. A fixing seat is installed at a position opposite to the inner wall of the scraper plate 6 and the base 2. A shaft body is installed inside the fixing seat, and the two ends of the electric telescopic member 20 are respectively movably sleeved on the outside of the shaft bodies inside the two fixing seats through the mounting holes opened by the connecting member. The two ends of the electric telescopic member 20 are respectively hinged to the scraper plate 6 and the inner wall of the base 2, and the electric telescopic member 20 is electrically connected to an external power supply through a wire.

[0049] With the above structure, after the conveyor belt 5 has been used for a period of time, its surface will be worn, which reduces the fit between the scraper plate 6 and the conveyor belt 5. At this time, the electric telescopic member 20 is connected to the power supply, so that the movable end of the electric telescopic member 20 drives the hinged scraper plate 6 to rotate, and adjusts one side of the scraper plate 6 to fit on the surface of the conveyor belt 5. Thereby, the fit between the scraper plate 6 and the conveyor belt 5 is ensured, thereby preventing the resin-coated sand from adhering to the surface of the conveyor belt 5.

[0050] One side of the discharge guide plate 7 is fixedly mounted on the inner wall of the drying box 1. The other side of the discharge guide plate 7 is attached to the side wall of the conveyor belt 5. The side wall of the drying box 1 opposite to the conveyor belt 5 is provided with a discharge port 11, and the discharge guide plate 7 passes through the discharge port 11. The discharge guide plate 7 is fixed obliquely to the inner wall of the drying box 1, and the discharge guide plate 7 obliquely passes through the discharge port 11 and is attached to the surface of the conveyor belt 5, and the lower surface of the discharge guide plate 7 is attached to the lower side of the inner wall of the discharge port 11. The movable rod 8 passes through the discharge guide plate 7 and extends to the outside.

[0051] By adopting the above structure, the resin coated sand falls on the surface of the discharge guide plate 7 after being dried, and falls on the surface of the conveyor belt 5 through the inclined discharge guide plate 7, thereby ensuring the smoothness of the discharge process.

[0052] The present embodiment provides a low-temperature drying device for resin-coated sand, and its working principle is as follows: when the coated quartz sand is subjected to low-temperature drying treatment, after adjusting the air volume and working temperature of the hot air blower 4, as the resin-coated sand enters the drying box 1 through the feed pipe 3, the falling resin-coated sand is blown and dried by the hot air blower 4, so that the hot air blows the resin-coated sand into the guide groove, and the resin-coated sand falls on the surface of the temporary storage plate 9 along the guide plate 13 through the guidance of the guide groove. At this time, the driving motor of the cam 12 is connected to the power supply. After the cam 12 rotates one circle, the temporary storage plate 9 vibrates up and down once, and the resin-coated sand falls on the discharge guide plate 7 evenly dispersed through the multiple bulk holes on the temporary storage plate 9. The resin-coated sand is discharged from the outside through the discharge guide plate 7 and falls on the surface of the conveyor belt 5, and then the dried resin-coated sand is conveyed to the next process through the conveyor belt 5.

[0053] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0054] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0055] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0056] 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 low-temperature drying device for resin-coated sand, comprising a drying box (1), a feed port (3) being embedded in the top of the drying box (1), a base (2) being arranged below the drying box (1), and a conveyor belt (5) for conveying the resin-coated sand being arranged between the base (2) and the drying box (1), characterized in that: The inner cavity of the drying box (1) is provided with a temporary storage plate (9), the bottom of the drying box (1) is provided with a driving component for vibrating the temporary storage plate (9), a discharge guide plate (7) is provided between the inner wall of the drying box (1) and the conveyor belt (5), a hot air blower (4) is embedded in the side wall of the drying box (1), a scraper plate (6) is rotatably provided between the base (2) and the conveyor belt (5), and an exhaust assembly is provided on the outer cover of the feed port (3).

2. A resin coated sand low temperature drying device according to claim 1, characterized in that: The exhaust assembly comprises a feed box (21), the feed box (21) is covered on the outside of the feed port (3), the side wall of the feed box (21) is provided with a groove cavity (23) for probing into the feeding conveyor, the inner wall of the groove cavity (23) is provided with a shielding cloth (22), and two corners of the shielding cloth (22) are fixed to the inner wall of the feed box (21), and a traction rope (10) is provided between the other two corners of the shielding cloth (22) and the inner wall of the feed box (21).

3. The resin coated sand low temperature drying device according to claim 1, characterized in that: The driving component comprises a movable rod (8), the movable rod (8) passes through the bottom of the drying box (1) and extends to the inner cavity, a movable plate (18) is fixedly mounted on one end of the movable rod (8) located outside the drying box (1), the temporary storage plate (9) is rotatably arranged between the inner wall of the drying box (1) and the movable rod (8), and a reciprocating driving component for swinging the position of the movable plate (18) is arranged at the bottom of the drying box (1).

4. A resin coated sand low temperature drying device according to claim 3, characterized in that: The reciprocating drive assembly comprises a cam (12) rotatably arranged at the bottom of the drying box (1); an elastic member (19) is sleeved on the outside of the movable rod (8), and the elastic member (19) is arranged between the movable plate (18) and the bottom of the drying box (1); and the cam (12) is attached to the side wall of the movable plate (18).

5. The low-temperature drying device for resin-coated sand according to claim 3, characterized in that: One side of the temporary storage plate (9) is rotatably mounted on the outer wall of the movable rod (8), and the other side of the temporary storage plate (9) is rotatably mounted with one end of a transfer extension piece (14), and the other end of the transfer extension piece (14) is rotatably mounted on the inner wall of the drying box (1).

6. The resin coated sand low temperature drying device according to claim 1, characterized in that: A guide plate (13) is fixedly mounted on the inner wall of the drying box (1), and the guide plate (13) is arranged opposite to the hot air blower (4). A guide groove is arranged on one side of the guide plate (13) opposite to the hot air blower (4).

7. The low-temperature drying device for resin-coated sand according to claim 1, characterized in that: One side of the scraper plate (6) is attached to the side wall of the conveyor belt (5), and an adjustment component is provided between the scraper plate (6) and the inner wall of the base (2).

8. The low-temperature drying device for resin-coated sand according to claim 7, characterized in that: The adjusting component comprises an electric telescopic member (20), the movable end of the electric telescopic member (20) being rotatably arranged on the side wall of the scraper plate (6), and the other end of the electric telescopic member (20) being rotatably arranged on the inner wall of the base (2).

9. The resin coated sand low temperature drying device according to claim 3, characterized in that: One side of the discharge guide plate (7) is fixedly mounted on the inner wall of the drying box (1), and the other side of the discharge guide plate (7) is in contact with the side wall of the conveyor belt (5). The drying box (1) is provided with a discharge port (11) on the side wall opposite to the conveyor belt (5), and the discharge guide plate (7) passes through the discharge port (11). The movable rod (8) passes through the discharge guide plate (7) and extends to the outside.

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