Coating device for production of alkali-resistant resin coated sand

Abstract

The utility model discloses a coating device for alkali-resistant resin coated sand production, and belongs to the technical field of resin coated sand production, the coating device is used for supporting a prefabricated part door opening, and the coating device comprises a device body, a resin tank, a sand tank and a linear vibration conveying assembly; a fixing frame is fixedly installed at the side end of the device body, and a discharging opening used for discharging coated quartz sand is formed in the side end face of the vibration coating assembly. The resin tank is fixedly installed in the middle of the upper end face of the device body. According to the technical key points, quartz sand is conveyed to a vibration coating channel through vibration conveying of a linear vibration conveying assembly, so that the quartz sand penetrates through a liquid curtain, resin can be evenly smeared to the outer surface of the quartz sand while the quartz sand penetrates through the liquid curtain, smearing is uniform, the follow-up scraping step is not needed, coating is conducted in multiple times, the coating effect is better, and the production efficiency is improved. The overall use is relatively convenient, and the use prospect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of resin coated sand production, in particular to a coating device used for the production of alkali-resistant resin coated sand. Background Art

[0002] Resin usually refers to an organic polymer that softens or melts when heated, tends to flow under the action of external force when softened, and is solid, semi-solid, or sometimes liquid at room temperature.

[0003] Quartz sand is quartz particles made by crushing quartz stone. Quartz stone is a non-metallic mineral, a silicate mineral that is hard, wear-resistant and chemically stable. The color of quartz sand is milky white or colorless and translucent.

[0004] Quartz sand is an important industrial mineral raw material and a non-chemical hazardous product. It is widely used in glass, casting, ceramics and fireproof materials, smelting ferrosilicon, metallurgical flux, metallurgy, construction, chemical industry, plastics, rubber, abrasives, filter materials and other industries.

[0005] Resin coated sand is produced by coating resin on the outer surface of quartz sand.

[0006] The existing patent number is CN219616647U, and the patent name is a utility model patent for an alkali-resistant resin coated sand production equipment. The patent records that it includes: a crushing mechanism and a power mechanism. The crushing mechanism includes a crushing box. A filter assembly is arranged inside the crushing box. The filter assembly includes a baffle. A filter screen is arranged on the upper surface of the baffle. A limiting ring is arranged at the intersection of the baffle and the filter screen. The filter screen is recessed in the upper surface of the limiting ring. It relates to the technical field of coated sand production equipment, wherein a filter assembly is provided, which includes a baffle and a filter screen. The filter screen is placed inside the limiting ring on the upper surface of the baffle, and the filter screen is recessed in the limiting groove through a connecting block. Under the action of an external connecting assembly, the filter screen and the baffle are tightly connected. When replacing the filter screen, the connecting assembly and the filter screen are separated. The filter screen is moved up and rotated by a holding column, so that the connecting block and the connecting assembly inside the filter screen can be dislocated, so that the filter screen can be quickly removed.

[0007] The existing patent number is CN213164930U. The patent name is a utility model patent for a coating device for resin sand processing that is easy to spray evenly. It records that it includes a coating frame and a conveyor belt. The coating frame is provided with a spraying device and a rotating plate device. A cleaning box is provided under the rotating plate device. The conveyor belt passes through the spraying device and the rotating plate device in turn. The rotating plate device includes a turntable, a telescopic electric cylinder is provided at the bottom of the turntable, and a connecting plate is provided on the output shaft of the telescopic electric cylinder. A plurality of scrapers are provided at the bottom of the connecting plate, and the cleaning box is used to clean the plurality of scrapers. The coating frame is also provided with a rotating motor, and the output end of the rotating motor is fixedly connected to the top of the turntable, and the connecting plate is slidably connected to the output shaft of the rotating motor. In the utility model, the scraper is cleaned after use, which effectively prevents the residual paint on the scraper from affecting the coating layer of the resin sand workpiece, enhances the coating effect of the workpiece and improves production efficiency.

[0008] When the device used in the above-mentioned reference document 1 is used, it performs the steps in the early stage of the production of resin-coated sand, and does not involve the resin coating process; the device used in the above-mentioned reference document 2 realizes the quartz sand spraying by spraying from top to bottom, but the problem with this solution is that the bottom cannot be sprayed, and the spraying causes a large amount of resin to be left on the conveying device, which is very inconvenient to clean, and the sand is granular, and the resin is easily thick at the edges and corners by scraping and leveling, which does not meet people's use requirements;

[0009] In summary, the existing coating devices for the production of alkali-resistant resin coated sand have certain disadvantages when used and do not meet people's usage requirements. Therefore, we propose a coating device for the production of alkali-resistant resin coated sand. Summary of the invention

[0010] In order to overcome the shortcomings of the prior art, an embodiment of the present application provides a coating device for the production of alkali-resistant resin coated sand, which adopts a linear vibration conveying assembly to vibrate and convey quartz sand to a vibration coating channel, so that the quartz sand passes through the liquid curtain. While the quartz sand passes through the liquid curtain, the resin will be evenly applied to the outer surface of the quartz sand, and the coating is even, without the need for subsequent scraping steps, and the coating is performed in multiple times, the coating effect is better, the overall use is more convenient, the use effect is good, and it has a good prospect for use.

[0011] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0012] A coating device for producing alkali-resistant resin coated sand, comprising a device body, a resin tank, a sand tank and a linear vibration conveying assembly:

[0013] The upper end surface of the device body is provided with a vibration coating assembly, and a fixing frame is fixedly installed at the side end position of the device body. The side end surface of the vibration coating assembly is provided with a discharge port for discharging the coated quartz sand;

[0014] The resin tank is fixedly installed at the middle position of the upper end surface of the device body, and a heating component is arranged inside the resin tank;

[0015] The sand pot is placed on a fixed frame;

[0016] The linear vibration conveying assembly is installed on the fixed frame, one end of the linear vibration conveying assembly is connected to the inlet of the vibration coating assembly, and the outlet of the sand tank is connected to the inlet of the linear vibration conveying assembly;

[0017] Among them, the interior of the vibration coating component is provided with a vibration coating channel and an infusion component which are spirally arranged downward from the outside to the inside. The infusion component is connected with the outlet of the resin tank and the vibration coating channel, and is used to form a liquid curtain on the vibration coating channel for sand to pass through. The vibration coating channel is connected with one end of the linear vibration conveying component.

[0018] The utility model records a coating device for producing alkali-resistant resin-coated sand, wherein a linear vibration conveying assembly is used to vibrate and convey quartz sand to a vibration coating channel, so that the quartz sand passes through a liquid curtain. While the quartz sand passes through the liquid curtain, the resin is evenly coated on the outer surface of the quartz sand, and the coating is even, no subsequent scraping step is required, and the coating is performed in multiple times, so the coating effect is better, the overall use is more convenient, the use effect is good, and it has a good use prospect.

[0019] The quartz sand in the resin tank is quartz sand with uniform particle size after screening.

[0020] Preferably, a liquid storage cavity is installed in the middle position inside the vibration coating component, and several groups of openings are opened on the vibration coating channel below the infusion component, and metal meshes are installed in the openings. The interior of the vibration coating component is provided with a channel for guiding the resin liquid to flow to the liquid storage cavity.

[0021] The uncoated resin will gather in the liquid storage chamber, which is convenient for collecting the resin and reusing it.

[0022] Preferably, a delivery pump is installed inside the liquid storage chamber, and an outlet of the delivery pump is connected to the resin tank through a pipeline, so as to deliver the liquid to the inside of the resin tank.

[0023] Preferably, a cooling zone is provided on one side of the metal mesh on the vibration coating channel, and the cooling zone adopts a semiconductor cooling sheet, and the semiconductor cooling sheet is embedded in the vibration coating channel.

[0024] The coated quartz sand moves along the vibration coating channel to the cooling zone, and the semiconductor refrigeration plate works to lower the temperature, so that the quartz sand is directly cooled. In addition, a relevant coating is provided on the cooling zone to avoid resin adhesion.

[0025] Preferably, a separation block is provided on one side of the vibration coating channel, the upper end surface of the separation block is inclined, and the inclination direction of the separation block is opposite to the inclination direction of the vibration coating channel here.

[0026] The utility model records a coating device for the production of alkali-resistant resin coated sand. The coated quartz sand moves along a vibration coating channel to a cooling zone, and the resin on its surface is quickly cooled and solidified, and then passes through a separation block during the movement. When the separation block falls onto the vibration coating channel, the resin coated sand bonded together is directly separated due to vibration, so as to avoid affecting the next coating effect. The coating is more uniform, and there is no response to subsequent secondary treatment. The use is relatively convenient and the use effect is good.

[0027] Preferably, the vibration coating component is provided with an adjusting component for adjusting the thickness of the quartz sand inside the vibration coating channel.

[0028] Preferably, the adjustment assembly comprises a lifting column and a mounting bar:

[0029] The number of lifting columns is several groups, and the lifting columns are fixedly mounted on the upper end surface of the vibration coating assembly;

[0030] The mounting strip is disposed inside the vibration coating assembly, and the mounting strip is fixedly connected to the telescopic end of the lifting column;

[0031] Among them, a plurality of groups of arc blocks are fixedly installed on the lower end surface of the installation strip, the heights of the plurality of groups of arc blocks are different, and the lower ends of the arc blocks pass through the through holes opened on the vibration coating channel.

[0032] The utility model records a coating device for the production of alkali-resistant resin coated sand, wherein an adjusting component is arranged, and the adjusting component can change the height of a vibration coating channel, thereby adjusting the thickness of the quartz sand during movement, so that the quartz sand inside the vibration coating channel remains a thin layer, effectively reducing the situation where the quartz sand is stacked and passes through the liquid curtain, thereby making the surface of the quartz sand more uniform, and the arrangement of the adjusting component enables the vibration coating channel to be used for coating quartz sand of different particle sizes, with good overall use effect and good use prospects.

[0033] Preferably, a metal inclined mesh is provided inside the vibration coating assembly at the lower end of the vibration coating channel, and a material conveying pipeline is provided at the lowest point of the metal inclined mesh, and the material conveying pipeline is connected to a feed discharge port.

[0034] Preferably, the infusion assembly comprises a main pipeline, a branch pipe and a liquid dispensing head;

[0035] The main pipeline is installed at the discharge port of the resin tank;

[0036] The number of branch pipes is several groups, and one end of the branch pipe is connected to the main pipe;

[0037] The number of the dispensing heads is several groups, and the dispensing heads are installed on the vibration coating channel, and the other end of the branch pipe is fixedly connected to the dispensing head.

[0038] In summary, the present invention includes at least one of the following beneficial technical effects:

[0039] First, the utility model records a coating device for the production of alkali-resistant resin-coated sand, in which a linear vibration conveying assembly is used to vibrate and convey quartz sand to a vibration coating channel, so that the quartz sand passes through a liquid curtain. While the quartz sand passes through the liquid curtain, the resin will be evenly applied to the outer surface of the quartz sand, and the coating is even, without the need for subsequent scraping steps, and the coating is performed in multiple times, with a better coating effect. The overall use is relatively convenient, the use effect is good, and it has a good prospect for use.

[0040] Second, the utility model records a coating device for the production of alkali-resistant resin coated sand. The coated quartz sand moves along the vibration coating channel to the cooling zone, and the resin on its surface will quickly cool and solidify, and then pass through the separation block during the movement. When the separation block falls on the vibration coating channel, the vibration will directly separate the resin coated sand that is bonded together, avoiding affecting the next coating effect. The coating is more uniform, and there is no response to subsequent secondary processing. It is more convenient to use and has good effect.

[0041] Third, the utility model records a coating device for the production of alkali-resistant resin coated sand, in which an adjusting component is provided, which can change the height of the vibration coating channel, thereby adjusting the thickness of the quartz sand during movement, so that the quartz sand inside the vibration coating channel remains a thin layer, effectively reducing the situation where the quartz sand is stacked and passes through the liquid curtain, thereby making the surface of the quartz sand more uniform, and the setting of the adjusting component enables the vibration coating channel to be used for coating quartz sand of different particle sizes, with good overall use effect and good use prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a usage state diagram of the utility model;

[0043] Figure 2 It is a partial structural diagram of the utility model;

[0044] Figure 3 It is a structural diagram of the vibration coating assembly in the utility model;

[0045] Figure 4 This utility model Figure 3 A magnified view of the structure at center A;

[0046] Figure 5 It is a structural diagram of the vibration coating channel in the utility model;

[0047] Figure 6 It is a partial structural diagram of the regulating component in the utility model.

[0048] Figure numerals: 1. Device body; 2. Fixing frame; 3. Resin tank; 31. Heating assembly; 4. Vibration coating assembly; 41. Vibration coating channel; 411. Separation block; 412. Metal inclined mesh; 413. Feed pipeline; 42. Infusion assembly; 421. Branch pipe; 422. Liquid distributor; 43. Liquid storage chamber; 44. Opening; 45. Metal mesh; 46. Pipeline; 47. Cooling zone; 48. Lifting column; 49. Mounting strip; 5. Sand tank; 491. Arc block; 6. Linear vibration conveying assembly. DETAILED DESCRIPTION

[0049] The embodiment of the present application solves the problem of spraying quartz sand from top to bottom in the prior art by providing a coating device for the production of alkali-resistant resin-coated sand. However, the problem with this solution is that the bottom cannot be sprayed, and the spraying causes a large amount of resin to be present on the conveying device, which makes cleaning very inconvenient. In addition, the sand is granular, and the resin is thick and uneven at the edges and corners when scraped flat.

[0050] Embodiment 1:

[0051] A coating device for producing alkali-resistant resin coated sand, such as Figure 1-Figure 6 As shown, it includes a device body 1, a resin tank 3, a sand tank 5 and a linear vibration conveying component 6:

[0052] The upper end surface of the device body 1 is provided with a vibration coating component 4, and a fixing frame 2 is fixedly installed at the side end position of the device body 1. The side end surface of the vibration coating component 4 is provided with a discharge port for discharging the coated quartz sand; the resin tank 3 is fixedly installed at the middle position of the upper end surface of the device body 1, and a curing agent with a long response time and high fluidity is added to the resin stored in the resin tank 3. After the curing agent is mixed with the resin, the resin can flow like water, thereby forming a liquid curtain, and a heating component 31 is arranged inside the resin tank 3; the heating component 31 adopts an electric heating coil, and the sand tank 5 is placed on the fixing frame 2;

[0053] The linear vibration conveying assembly 6 is installed on the fixed frame 2, one end of the linear vibration conveying assembly 6 is connected to the inlet of the vibration coating assembly 4, and the outlet of the sand tank 5 is connected to the inlet of the linear vibration conveying assembly 6;

[0054] Among them, the interior of the vibration coating component 4 is provided with a vibration coating channel 41 and an infusion component 42 which are spirally arranged downward from the outside to the inside. The infusion component 42 is connected with the outlet of the resin tank 3 and the vibration coating channel 41, and is used to form a liquid curtain on the vibration coating channel 41 for sand to pass through. The vibration coating channel 41 is connected with one end of the linear vibration conveying component 6.

[0055] The vibration generated by the vibration coating channel 41 and the linear vibration conveying assembly 6 during operation is transmitted to the sand pot 5 , causing the sand pot 5 to vibrate, thereby effectively preventing the sand pot 5 from being blocked.

[0056] The vibration coating assembly 4 generates vibration through the vibration motor and the inclined surface of the vibration coating channel 41 to achieve the vibration and fall of the quartz sand.

[0057] The quartz sand in the resin tank 3 is quartz sand with uniform particle size after screening.

[0058] The infusion assembly 42 includes a main pipeline, a branch pipe 421 and a liquid distribution head 422;

[0059] The main pipeline is installed at the discharge port of the resin tank 3; the number of branch pipes 421 is several groups, one end of the branch pipe 421 is connected to the main pipeline; the number of liquid separation heads 422 is several groups, the liquid separation heads 422 are installed on the vibration coating channel 41, and the other end of the branch pipe 421 is fixedly connected to the liquid separation head 422.

[0060] The liquid resin flows to the branch pipe 421 through the liquid separation head, and then flows to the liquid separation head 422. After being dispersed by the liquid separation head 422, it falls down to form a liquid curtain.

[0061] The arrangement of multiple branch pipes 421 and liquid dispensing heads 422 forms multiple liquid curtains, thereby achieving multiple coatings on the quartz sand, resulting in better effects.

[0062] The utility model records a coating device for producing alkali-resistant resin-coated sand, wherein a linear vibration conveying assembly 6 is used to vibrate and convey quartz sand to a vibration coating channel 41, so that the quartz sand passes through a liquid curtain. While the quartz sand passes through the liquid curtain, the resin is evenly coated on the outer surface of the quartz sand, and the coating is even, without the need for subsequent scraping steps, and the coating is performed in multiple times, so the coating effect is better, the overall use is more convenient, the use effect is good, and it has a good use prospect.

[0063] When in use, the quartz sand in the sand tank 5 falls onto the linear vibration conveying assembly 6, and the linear vibration conveying assembly 6 drives the quartz sand to move to the vibration coating channel 41 in the vibration coating assembly 4. The vibration coating assembly 4 is started, thereby driving the quartz sand to move along the vibration coating channel 41, so that the quartz sand passes through the liquid curtain to achieve the coating of the quartz sand.

[0064] Embodiment 2:

[0065] On the basis of Example 1, Figure 1-Figure 6 As shown, this embodiment shows the structure of the vibration coating assembly 4.

[0066] A liquid storage cavity 43 is installed in the middle position of the interior of the vibration coating component 4, and a plurality of groups of openings 44 are opened on the vibration coating channel 41 below the infusion component 42. A metal mesh 45 is installed in the opening 44. The interior of the vibration coating component 4 is provided with a channel for guiding the resin liquid to flow to the liquid storage cavity 43, and guiding the excess resin passing through the metal mesh 45.

[0067] The metal mesh 45 can prevent quartz sand from passing through, but resin can pass through, and prevent the resin from moving along the vibration coating channel 41 . The width of the metal mesh 45 is 8-10 times the width of the liquid curtain, so the resin can completely pass through and gather in the liquid storage chamber 43 .

[0068] The uncoated resin will gather in the liquid storage chamber 43, which is convenient for collecting the resin and reusing it.

[0069] A delivery pump is installed inside the liquid storage chamber 43 , and an outlet of the delivery pump is connected to the resin tank 3 through a pipeline 46 for delivering liquid to the inside of the resin tank 3 .

[0070] The setting of the delivery pump plays the role of making the resin circulate.

[0071] A cooling zone 47 is provided on one side of the metal mesh 45 on the vibration coating channel 41 . The cooling zone 47 uses a semiconductor cooling sheet, and the semiconductor cooling sheet is embedded in the vibration coating channel 41 .

[0072] The coated quartz sand moves along the vibration coating channel 41 to the cooling zone 47, and the semiconductor refrigeration plate works to lower the temperature, so that the quartz sand is directly cooled. In addition, a relevant coating is provided on the cooling zone 47 to avoid resin adhesion.

[0073] A separation block 411 is provided on one side of the vibration coating channel 41 . The upper end surface of the separation block 411 is inclined, and the inclination direction of the separation block 411 is opposite to the inclination direction of the vibration coating channel 41 here.

[0074] The utility model records a coating device for the production of alkali-resistant resin-coated sand. The coated quartz sand moves along a vibration coating channel 41 to a cooling zone 47, and the resin on its surface is quickly cooled and solidified, and then passes through a separation block 411 during the movement. When the separation block 411 falls onto the vibration coating channel 41, the resin-coated sand bonded together is directly separated due to vibration, so as to avoid affecting the coating effect next time, and the coating is more uniform, and there is no response to subsequent secondary treatment. The use is relatively convenient and the use effect is good.

[0075] Embodiment 3:

[0076] On the basis of Example 2, Figure 1-Figure 6 As shown, this embodiment shows the structure of the adjustment component.

[0077] The vibration coating component 4 is provided with an adjusting component for adjusting the thickness of the quartz sand inside the vibration coating channel 41 .

[0078] The adjustment assembly includes a lifting column 48 and a mounting bar 49:

[0079] The number of lifting columns 48 is several groups, and the lifting columns 48 are fixedly mounted on the upper end surface of the vibration coating assembly 4; the mounting strip 49 is arranged inside the vibration coating assembly 4, and the mounting strip 49 is fixedly connected to the telescopic end of the lifting column 48;

[0080] Among them, a plurality of groups of arc blocks 491 are fixedly installed on the lower end surface of the installation bar 49 , and the heights of the plurality of arc blocks 491 are different. The lower ends of the arc blocks 491 pass through the through holes opened on the vibration coating channel 41 .

[0081] The end surface of the arc block 491 is inclined to guide the movement of the quartz sand.

[0082] The utility model records a coating device for the production of alkali-resistant resin coated sand, wherein an adjusting component is provided, and the adjusting component can change the height of a vibration coating channel 41, thereby adjusting the thickness of the quartz sand during movement, so that the quartz sand inside the vibration coating channel 41 is kept as a thin layer, effectively reducing the situation where the quartz sand is stacked and passes through the liquid curtain, thereby making the surface of the quartz sand more uniform, and the setting of the adjusting component enables the vibration coating channel 41 to be used for coating quartz sand of different particle sizes, with good overall use effect and good use prospects.

[0083] A metal inclined net 412 is provided at the lower end of the vibration coating channel 41 inside the vibration coating assembly 4 , and a material conveying pipeline 413 is provided at the lowest point of the metal inclined net 412 , and the material conveying pipeline 413 is connected to the material discharge port.

[0084] The coated quartz sand moves, is guided by the metal inclined mesh 412, and is gathered at the material conveying pipeline 413, and flows through the material conveying pipeline 413 to the discharge port.

[0085] Working principle: when in use, the quartz sand in the sand tank 5 falls onto the linear vibration conveying component 6, and the linear vibration conveying component 6 drives the quartz sand to move to the vibration coating channel 41 in the vibration coating component 4. The vibration coating component 4 is started, thereby driving the quartz sand to move along the vibration coating channel 41, and contacts with the arc block 491 during movement, so that the quartz sand inside the vibration coating channel 41 maintains a thin layer, and then the quartz sand passes through the liquid curtain to achieve the coating of the quartz sand. The coated quartz sand moves to the cooling zone 47, and the semiconductor refrigeration plate works to reduce the temperature, so that the quartz sand will be directly cooled. After the quartz sand is cooled and solidified, it continues to move and moves to the separation block 411. When the separation block 411 falls on the vibration coating channel 41, due to the height difference, the vibration impact becomes larger, which will directly separate the resin coated sand bonded together. The separated resin coated sand moves, is guided by the metal inclined mesh 412, and then converges at the feed pipe 413, and passes through the feed pipe 413 to flow to the discharge port for collection.

[0086] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A coating device for producing alkali-resistant resin coated sand, characterized in that: include: The main body (1) of the device has a vibration coating assembly (4) on its upper end surface, and a fixing frame (2) is fixedly installed at its side end position, and the side end surface of the vibration coating assembly (4) is provided with a discharge port for discharging the coated quartz sand; A resin tank (3) is fixedly mounted at the middle position of the upper end surface of the device body (1), and a heating component (31) is arranged inside the resin tank; A sand pot (5) is placed on a fixed frame (2); A linear vibration conveying assembly (6) is mounted on the fixed frame (2), one end of which is connected to the inlet of the vibration coating assembly (4), and the outlet of the sand tank (5) is connected to the inlet of the linear vibration conveying assembly (6); The interior of the vibration coating component (4) is provided with a vibration coating channel (41) and an infusion component (42) which are spirally arranged downward from the outside to the inside. The infusion component (42) is connected to the outlet of the resin tank (3) and the vibration coating channel (41) to form a liquid curtain for sand to pass through on the vibration coating channel (41). The vibration coating channel (41) is connected to one end of the linear vibration conveying component (6).

2. A coating device for producing alkali-resistant resin coated sand as claimed in claim 1, characterized in that: A liquid storage cavity (43) is installed in the middle of the vibration coating component (4), a plurality of groups of openings (44) are provided on the vibration coating channel (41) below the infusion component (42), a metal mesh (45) is installed in the opening (44), and a channel for guiding the resin liquid to flow toward the liquid storage cavity (43) is provided inside the vibration coating component (4).

3. A coating device for producing alkali-resistant resin coated sand as claimed in claim 2, characterized in that: A delivery pump is installed inside the liquid storage chamber (43), and the outlet of the delivery pump is connected to the resin tank (3) through a pipeline (46) for delivering liquid to the inside of the resin tank (3).

4. A coating device for producing alkali-resistant resin coated sand as claimed in claim 2, characterized in that: A cooling zone (47) is provided on one side of the metal mesh (45) on the vibration coating channel (41), and the cooling zone (47) adopts a semiconductor cooling sheet, and the semiconductor cooling sheet is embedded in the vibration coating channel (41).

5. A coating device for producing alkali-resistant resin coated sand as claimed in claim 1, characterized in that: A separation block (411) is provided on the vibration coating channel (41) at one side of the vibration coating channel (41), the upper end surface of the separation block (411) is arranged inclined, and the inclination direction of the separation block (411) is opposite to the inclination direction of the vibration coating channel (41) here.

6. A coating device for producing alkali-resistant resin coated sand as claimed in claim 1, characterized in that: The vibration coating component (4) is provided with an adjustment component for adjusting the thickness of the quartz sand inside the vibration coating channel (41).

7. A coating device for producing alkali-resistant resin coated sand as claimed in claim 6, characterized in that: The adjustment component comprises: Lifting columns (48), which are provided in a plurality of groups and are fixedly mounted on the upper end surface of the vibration coating assembly (4); A mounting strip (49) disposed inside the vibration coating assembly (4) and fixedly connected to the telescopic end of the lifting column (48); Among them, a plurality of groups of arc blocks (491) are fixedly installed on the lower end surface of the mounting strip (49), the heights of the plurality of groups of arc blocks (491) are different, and the lower ends of the arc blocks (491) pass through the through holes opened on the vibration coating channel (41).

8. A coating device for producing alkali-resistant resin coated sand as claimed in claim 1, characterized in that: A metal inclined net (412) is provided inside the vibration coating assembly (4) at the lower end of the vibration coating channel (41), and a material delivery pipeline (413) is provided at the lowest point of the metal inclined net (412), and the material delivery pipeline (413) is connected to the discharge port.

9. A coating device for producing alkali-resistant resin coated sand as claimed in claim 1, characterized in that: The infusion assembly (42) comprises: A main pipeline installed at the discharge port of the resin tank (3); Branch pipes (421), which are in several groups, one end of which is connected to the main pipeline; The liquid dispensing heads (422) are in several groups and are installed on the vibration coating channel (41). The other end of the branch pipe (421) is fixedly connected to the liquid dispensing head (422).

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