Granularity control screening device in dry-wet process produced machine-made sand

Abstract

The utility model provides a particle size control screening device in dry-wet process produced machine-made sand, which comprises a shell, a connecting shell is fixedly mounted at the top of the shell, a feeding frame is fixedly mounted in an inner cavity of the connecting shell, protective shells are fixedly mounted on two sides of the connecting shell, and a pushing assembly is fixedly mounted on one side of an inner cavity of each protective shell. Two protective shells are fixedly installed on the right side of an inner cavity of the shell, supporting rods are fixedly installed on the front sides and the rear sides of inner cavities of the protective shells, and supporting blocks are slidably installed on the surfaces of the supporting rods. The screen mesh can be driven to shake through the driving assembly, the screening efficiency of the screen mesh is improved, shaking can help the screen mesh to effectively separate particles of different sizes, the particles on the screen mesh can move in the screen holes by shaking the screen mesh, and therefore the purpose of separation is achieved. Shaking is beneficial for preventing fine particles on the screen from accumulating in screen holes to form blocking, and the permeability and the working efficiency of the screen are kept.

Description

Technical Field

[0001] The utility model relates to the technical field of screening devices, in particular to a particle size control screening device in dry and wet method production of machine-made sand. Background Art

[0002] The particle size control in dry and wet production of machine-made sand is usually achieved through screening devices, which are often used in wet production to separate fine particles and powder from the raw materials by screening to ensure the uniformity of the sand's particle size and quality stability.

[0003] When existing screening devices screen and separate fine particles and powders in raw materials, the screens are usually fixed and cannot be shaken for screening, which reduces the efficiency of the screen screening. If the screen cannot be shaken, smaller particles may accumulate in the screen holes and not be effectively separated, causing the screen to be blocked, which will affect production efficiency and screening accuracy and is very inconvenient to use.

[0004] Therefore, we have made improvements to this and proposed a particle size control screening device for dry and wet method production of machine-made sand. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that when existing screening devices screen and separate fine particles and powders in raw materials, the screens are usually fixed and cannot be shaken for screening, which reduces the efficiency of the screen screening. If the screen cannot be shaken, smaller particles may accumulate in the screen holes and not be effectively separated, causing the screen to be blocked, which will affect production efficiency and screening accuracy and is very inconvenient in use.

[0006] In order to achieve the above-mentioned purpose of the invention, the present invention provides the following technical solutions:

[0007] A particle size control screening device is used in the dry and wet method of producing machine-made sand to improve the above problems.

[0008] The specific application is as follows:

[0009] The cam is secured to the bottom of the housing and secured to the frame, and the cam is secured to a control panel which is configured to monitor the movement of the load board while the cam is secured to the chassis. The cam is secured to a control panel which is configured to monitor the movement of the load board. The cam is secured to the bottom of the housing and secured to the frame.

[0010] The driving assembly can drive the screen to shake, which increases the efficiency of the screen during screening. The shaking can help the screen to effectively separate particles of different sizes. By shaking the screen, the particles on the screen can move in the screen holes, thereby achieving the purpose of separation. The shaking helps prevent the fine particles on the screen from accumulating in the screen holes to form blockages, thereby maintaining the permeability and working efficiency of the screen.

[0011] As a preferred embodiment of the particle size control and screening device for dry-wet method production of machine-made sand provided by the utility model, the pushing assembly includes a fixed plate, and the two fixed plates are respectively fixedly installed on the opposite sides of the inner cavity of the two protective shells, and a bidirectional motor is fixedly installed on the top of the fixed plate, and the front and rear sides of the bidirectional motor are fixedly installed with connecting rods, and the opposite sides of the two connecting rods are fixedly installed with rotating disks, and the right sides of the opposite sides of the two rotating disks are fixedly installed with a first rotating rod, and a connecting plate is movably installed on the surface of the first rotating rod, and a fixed frame is movably installed on one side of the connecting plate through a rotating shaft, and a push plate is fixedly installed on one side of the fixed frame.

[0012] As a preferred embodiment of the particle size control and screening device for dry and wet method production of machine-made sand provided by the utility model, movable rods are fixedly installed at the four corners of one side of the push plate, and a movable sleeve is slidably installed on the surface of the movable rod, and the surface of the movable sleeve is fixedly connected to the inner cavity of the feed frame.

[0013] As a preferred embodiment of the particle size control and screening device for dry and wet method sand production provided by the present invention, a first limit plate is fixedly installed on both sides of the bidirectional motor, and the first limit plate is fixedly connected to the fixed plate on the side close to the fixed plate.

[0014] The transmission gear of the present invention is a gear which is connected with the gear of the gear to the hub of the gear train of the said invention, and the gear is connected with the gear of the gear to the hub of the gear train of the said invention in a gear.

[0015] As a preferred embodiment of the particle size control and screening device for dry and wet method sand production provided by the present invention, a second limit plate is provided on the surface of the driving motor, and the second limit plate is fixedly connected to the outer shell on the side close to the outer shell.

[0016] As a preferred embodiment of the particle size control and screening device for dry-wet method sand production provided by the present invention, two positioning plates are fixedly installed on the front and rear sides of the connecting shell, and the positioning plates are fixedly connected to the shell on the side close to the shell.

[0017] As a preferred embodiment of the particle size control and screening device for dry and wet method sand production provided by the present invention, two stabilizing blocks are fixedly installed on the front and rear sides of the protective shell, and the stabilizing blocks are fixedly connected to the connecting shell on the side close to the connecting shell.

[0018] As a preferred embodiment of the particle size control and screening device for dry and wet method sand production provided by the present invention, two stabilizing plates are fixedly installed on the front and rear sides of the support shell, and the stabilizing plates are fixedly connected to the shell on the side close to the shell.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The driving assembly can drive the screen to shake, which increases the efficiency of the screen during screening. The shaking can help the screen to effectively separate particles of different sizes. By shaking the screen, the particles on the screen can move in the screen holes, thereby achieving the purpose of separation. The shaking helps prevent the fine particles on the screen from accumulating in the screen holes to form blockages, thereby maintaining the permeability and working efficiency of the screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of the particle size control and screening device for producing machine-made sand by the dry and wet methods provided in this application;

[0022] Figure 2 A schematic diagram of the structure of the particle size control and screening device for producing machine-made sand by the dry and wet methods provided in this application;

[0023] Figure 3 A schematic diagram of the structure of the particle size control and screening device for producing machine-made sand by the dry and wet methods provided in this application;

[0024] Figure 4 A schematic diagram of the structure of the particle size control and screening device for producing machine-made sand by the dry and wet methods provided in this application;

[0025] Figure 5 This is a schematic diagram of the structure of the particle size control and screening device in the dry and wet method production of machine-made sand provided in this application.

[0026] Indicated in the figure:

[0027] 1. Housing; 2. Connecting housing; 3. Feed frame; 4. Protective housing; 5. Pushing assembly; 501. Fixed plate; 502. Bidirectional motor; 503. Connecting rod; 504. Rotating disk; 505. First rotating rod; 506. Connecting plate; 507. Fixed frame; 508. Pushing plate; 509. Movable rod; 510. Movable sleeve; 511. First limiting plate; 6. Protective housing; 7. Support rod; 8. Support block; 9. Spring; 10. Screen; 11. Support housing; 12. Driving assembly; 1201. Driving motor; 1202, second rotating rod; 1203, first synchronous wheel; 1204, belt; 1205, second synchronous wheel; 1206, first bevel gear; 1207, second bevel gear; 1208, transmission rod; 1209, third bevel gear; 1210, fourth bevel gear; 1211, first push rod; 1212, cam; 1213, second limit plate; 1214, second push rod; 13, support plate; 14, collection box; 15, collection box; 16, positioning plate; 17, stabilizing block; 18, stabilizing plate. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them.

[0029] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0030] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0032] In the description of this utility model, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is typically placed when in use, or the orientations or positional relationships commonly understood by those skilled in the art. Such terms are intended solely to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" and the like are used solely for distinction and description and should not be construed as indicating or implying relative importance.

[0033] As described in the background technology, when existing screening devices screen and separate fine particles and powders in raw materials, the screen is usually fixed and cannot be shaken for screening, which reduces the efficiency of the screen screening. If the screen cannot be shaken, smaller particles may accumulate in the screen holes and not be effectively separated, causing the screen to be clogged, which will affect production efficiency and screening accuracy and is very inconvenient when used.

[0034] In order to solve this technical problem, the utility model provides a particle size control and screening device for producing machine-made sand by dry and wet methods.

[0035] Specifically, please refer to Figure 1-5The particle size control and screening device in the dry and wet method production of machine-made sand specifically includes: an outer shell 1, a connecting shell 2 is fixedly installed on the top of the outer shell 1, a feeding frame 3 is fixedly installed on the inner cavity of the connecting shell 2, protective shells 4 are fixedly installed on both sides of the connecting shell 2, and a pushing component 5 is fixedly installed on one side of the inner cavity of the protective shell 4. Two protective shells 6 are fixedly installed on the right side of the inner cavity of the outer shell 1, and a support rod 7 is fixedly installed on the front and rear sides of the inner cavity of the protective shell 6. A support block 8 is slidably installed on the surface of the support rod 7, and a spring 9 is provided on the top of the surface of the support rod 7. The side of the spring 9 close to the support block 8 is fixedly connected to the support block 8, and a screen 10 is fixedly installed on the left side of the support block 8. A support shell 11 is fixedly installed on the front and rear sides of the right side of the outer shell 1, and a driving component 12 is fixedly installed on the bottom of the right side of the outer shell 1. Two support plates 13 are fixedly installed on the left side of the outer shell 1, and a collecting box 14 is movably installed on the top of the support plate 13. A collecting box 15 is movably installed on the front side of the bottom of the inner cavity of the outer shell 1.

[0036] The driving component 12 can drive the screen 10 to shake, which increases the efficiency of the screen 10 during screening. The shaking can help the screen 10 effectively separate particles of different sizes. By shaking the screen 10, the particles on the screen 10 can move in the sieve holes, thereby achieving the purpose of separation. The shaking helps prevent fine particles on the screen 10 from accumulating in the sieve holes to form blockages, thereby maintaining the permeability and working efficiency of the screen 10.

[0037] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0038] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0039] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0040] Example 1

[0041] Please refer to Figure 1-5, a particle size control and screening device for dry and wet method production of machine-made sand, comprises an outer shell 1, a connecting shell 2 is fixedly installed on the top of the outer shell 1, a feeding frame 3 is fixedly installed in the inner cavity of the connecting shell 2, protective shells 4 are fixedly installed on both sides of the connecting shell 2, a pushing assembly 5 is fixedly installed on one side of the inner cavity of the protective shell 4, two protective shells 6 are fixedly installed on the right side of the inner cavity of the outer shell 1, a support rod 7 is fixedly installed on the front and rear sides of the inner cavity of the protective shell 6, a support block 8 is slidably installed on the surface of the support rod 7, a spring 9 is provided on the top of the surface of the support rod 7, and the side of the spring 9 close to the support block 8 is fixedly connected to the support block 8, a screen 10 is fixedly installed on the left side of the support block 8, a support shell 11 is fixedly installed on the front and rear sides of the right side of the outer shell 1, a driving assembly 12 is fixedly installed on the bottom of the right side of the outer shell 1, two support plates 13 are fixedly installed on the left side of the outer shell 1, a collecting box 14 is movably installed on the top of the support plate 13, and a collecting box 15 is movably installed on the front side of the bottom of the inner cavity of the outer shell 1. The pushing assembly 5 includes a fixed plate 501, and the two fixed plates 501 are respectively fixedly mounted on opposite sides of the inner cavity of the two protective shells 4. A bidirectional motor 502 is fixedly mounted on the top of the fixed plate 501. The front and rear sides of the bidirectional motor 502 are fixedly mounted with a connecting rod 503. A rotating disk 504 is fixedly mounted on the opposite side of the two connecting rods 503. A first rotating rod 505 is fixedly mounted on the right side of the opposite side of the two rotating disks 504. A connecting plate 506 is movably mounted on the surface of the first rotating rod 505. A fixing frame 507 is movably mounted on one side of the connecting plate 506 through a rotating shaft. A push plate 508 is fixedly mounted on one side of the fixing frame 507. A movable rod 509 is fixedly mounted on the four corners of one side of the push plate 508. A movable sleeve 510 is slidably mounted on the surface of the movable rod 509. The surface of the movable sleeve 510 is fixedly connected to the inner cavity of the feed frame 3. A first limiting plate 511 is fixedly installed on both sides of the bidirectional motor 502 , and a side of the first limiting plate 511 close to the fixing plate 501 is fixedly connected to the fixing plate 501 .

[0042] During the implementation process, the bidirectional motor 502 is started. When in use, the bidirectional motor 502 drives the rotating disk 504 to rotate through the connecting rod 503. Then, when the rotating disk 504 rotates, it drives the fixed frame 507 to move through the first rotating rod 505 and the connecting plate 506. When the fixed frame 507 moves, it drives the push plate 508 to move. When the two push plates 508 move, they will break up the particles that need to be screened. The broken particles are more evenly distributed on the screen 10, which helps the screening device to screen more quickly and effectively, thereby improving the screening efficiency.

[0043] Example 2

[0044] The driving assembly 12 includes a driving motor 1201, which is fixedly mounted on the bottom of the right side of the housing 1. A second rotating rod 1202 is fixedly mounted on the output end of the driving motor 1201. Two first synchronous wheels 1203 are fixedly mounted on the surface of the second rotating rod 1202. A second synchronous wheel 1205 is provided on the opposite side of the two first synchronous wheels 1203. A belt 1204 is connected between the first synchronous wheel 1203 and the second synchronous wheel 1205. A second pushing rod 1214 is fixedly mounted on the inner cavity of the second pushing rod 1214. A second pushing rod 1214 is fixedly mounted on the right side of the second pushing rod 1214. A bevel gear 1206 is provided. A second bevel gear 1207 is meshed with the top of the first bevel gear 1206. A transmission rod 1208 is fixedly mounted in the inner cavity of the second bevel gear 1207. The transmission rod 1208 is movably connected to the support shell 11 on the side close to the support shell 11. A third bevel gear 1209 is fixedly mounted on the top of the surface of the transmission rod 1208. A fourth bevel gear 1210 is meshed with the left side of the third bevel gear 1209. A first push rod 1211 is fixedly mounted in the inner cavity of the fourth bevel gear 1210. Two cams 1212 are fixedly mounted on the surfaces of the first push rod 1211 and the second push rod 1214. A second limit plate 1213 is sleeved on the surface of the drive motor 1201. The second limit plate 1213 is fixedly connected to the outer shell 1 on the side close to the outer shell 1.

[0045] During the implementation process, the driving motor 1201 is started, and the driving motor 1201 drives the second rotating rod 1202 to rotate when in use. The rotation of the second rotating rod 1202 drives the first synchronous wheel 1203 to rotate. The rotation of the first synchronous wheel 1203 drives the second synchronous wheel 1205 to rotate through the belt 1204. The rotation of the second synchronous wheel 1205 drives the second push rod 1214 to rotate. The rotation of the second push rod 1214 drives the first bevel gear 1206 to rotate. The rotation of the first bevel gear 1206 drives the second bevel gear 1207 to rotate. The rotation of the second bevel gear 1207 drives the transmission rod 1208 to rotate. The rotation of the transmission rod 1208 drives the third bevel gear 1 209 rotates, the third bevel gear 1209 rotates to drive the fourth bevel gear 1210 to rotate, and the fourth bevel gear 1210 rotates to drive the first push rod 1211 to rotate. The rotation of the first push rod 1211 and the second push rod 1214 will drive multiple cams 1212 to rotate. The cam 1212 will push the screen 10 to the top when rotating. When the screen 10 moves, it will squeeze the spring 9 through the support block 8, and then the spring 9 will reset to drive the support block 8 and the screen 10 to reset, thereby driving the screen 10 to rock back and forth, increasing the efficiency of the screen 10 during screening. The rocking can help the screen 10 effectively separate particles of different sizes.

[0046] When in use, the particles enter the interior of the feed frame 3 through the top of the connecting shell 2, and the bidirectional motor 502 is started. The bidirectional motor 502 drives the rotating disk 504 to rotate through the connecting rod 503 when in use. Then, the rotating disk 504 drives the fixed frame 507 to move through the first rotating rod 505 and the connecting plate 506 when rotating. The fixed frame 507 drives the push plate 508 to move when moving. The two push plates 508 will break up the particles to be screened when moving, and the broken particles are more evenly distributed on the screen 10 This helps the screening device to screen more quickly and effectively, improves screening efficiency, and the broken particles will enter the interior of the shell 1 and fall to the top of the screen 10, and the particles of different sizes will be screened through the two screens 10. By starting the drive motor 1201, the drive motor 1201 drives the second rotating rod 1202 to rotate when in use, and the rotation of the second rotating rod 1202 drives the first synchronous wheel 1203 to rotate, and the rotation of the first synchronous wheel 1203 drives the second synchronous wheel 1205 to rotate through the belt 1204, and the second synchronous wheel 1206 is rotated. The step wheel 1205 rotates to drive the second push rod 1214 to rotate, the second push rod 1214 rotates to drive the first bevel gear 1206 to rotate, the first bevel gear 1206 rotates to drive the second bevel gear 1207 to rotate, the second bevel gear 1207 rotates to drive the transmission rod 1208 to rotate, the transmission rod 1208 rotates to drive the third bevel gear 1209 to rotate, the third bevel gear 1209 rotates to drive the fourth bevel gear 1210 to rotate, the fourth bevel gear 1210 rotates to drive the first push rod 1211 to rotate, and the first push rod 1211 and the second push rod rotate. The rotation of 1214 will drive multiple cams 1212 to rotate. When the cams 1212 rotate, they will push the screen 10 to the top. When the screen 10 moves, it will squeeze the spring 9 through the support block 8, and then the spring 9 will reset the support block 8 and the screen 10, thereby driving the screen 10 to swing back and forth, increasing the efficiency of the screen 10 during screening. The shaking can help the screen 10 effectively separate particles of different sizes. The screened particles fall into the inside of the two collection boxes 14 and the collection box 15 according to their size.

[0047] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although this specification has described the present invention in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A particle size control and screening device for producing machine-made sand by dry and wet methods, comprising a housing (1), characterized in that: A connecting shell (2) is fixedly mounted on the top of the shell (1), a feeding frame (3) is fixedly mounted on the inner cavity of the connecting shell (2), protective shells (4) are fixedly mounted on both sides of the connecting shell (2), a pushing assembly (5) is fixedly mounted on one side of the inner cavity of the protective shell (4), two protective shells (6) are fixedly mounted on the right side of the inner cavity of the shell (1), a support rod (7) is fixedly mounted on the front and rear sides of the inner cavity of the protective shell (6), a support block (8) is slidably mounted on the surface of the support rod (7), and a spring is provided on the top of the surface of the support rod (7). A spring (9) is fixedly connected to the support block (8) on one side of the spring (9) close to the support block (8), a screen (10) is fixedly installed on the left side of the support block (8), a support shell (11) is fixedly installed on the front and rear sides of the right side of the shell (1), a driving assembly (12) is fixedly installed on the bottom of the right side of the shell (1), two support plates (13) are fixedly installed on the left side of the shell (1), a collection box (14) is movably installed on the top of the support plate (13), and a collection box (15) is movably installed on the front side of the bottom of the inner cavity of the shell (1).

2. The particle size control and screening device for dry and wet method sand production according to claim 1 is characterized in that: The pushing assembly (5) comprises a fixing plate (501), wherein the two fixing plates (501) are fixedly mounted on opposite sides of the inner cavities of the two protective shells (4), respectively; a bidirectional motor (502) is fixedly mounted on the top of the fixing plate (501); a connecting rod (503) is fixedly mounted on the front and rear sides of the bidirectional motor (502); a rotating disk (504) is fixedly mounted on the opposite side of the two connecting rods (503); a first rotating rod (505) is fixedly mounted on the right side of the opposite side of the two rotating disks (504); a connecting plate (506) is movably mounted on the surface of the first rotating rod (505); a fixing frame (507) is movably mounted on one side of the connecting plate (506) via a rotating shaft; and a pushing plate (508) is fixedly mounted on one side of the fixing frame (507).

3. The particle size control and screening device for dry and wet method sand production according to claim 2 is characterized in that: A movable rod (509) is fixedly mounted on each of the four corners of one side of the push plate (508), a movable sleeve (510) is slidably mounted on the surface of the movable rod (509), and the surface of the movable sleeve (510) is fixedly connected to the inner cavity of the feed frame (3).

4. The particle size control and screening device for dry and wet method sand production according to claim 2 is characterized in that: A first limiting plate (511) is fixedly mounted on both sides of the bidirectional motor (502), and a side of the first limiting plate (511) close to the fixing plate (501) is fixedly connected to the fixing plate (501).

5. The particle size control and screening device for dry and wet method sand production according to claim 1 is characterized in that: The drive assembly (12) comprises a drive motor (1201), the drive motor (1201) being fixedly mounted on the bottom of the right side of the housing (1), a second rotating rod (1202) being fixedly mounted on the output end of the drive motor (1201), two first synchronous wheels (1203) being fixedly mounted on the surface of the second rotating rod (1202), a second synchronous wheel (1205) being provided on opposite sides of the two first synchronous wheels (1203), a belt (1204) being connected between the first synchronous wheels (1203) and the second synchronous wheels (1205), a second pushing rod (1214) being fixedly mounted on the inner cavity of the second synchronous wheel (1205), and a first A bevel gear (1206) is provided. The top of the first bevel gear (1206) is meshed with a second bevel gear (1207). A transmission rod (1208) is fixedly installed in the inner cavity of the second bevel gear (1207). The transmission rod (1208) is movably connected to the support shell (11) on a side close to the support shell (11). A third bevel gear (1209) is fixedly installed on the top of the surface of the transmission rod (1208). A fourth bevel gear (1210) is meshed on the left side of the third bevel gear (1209). A first push rod (1211) is fixedly installed in the inner cavity of the fourth bevel gear (1210). Two cams (1212) are fixedly installed on the surfaces of both the first push rod (1211) and the second push rod (1214).

6. The particle size control and screening device for dry and wet method sand production according to claim 5, characterized in that: A second limiting plate (1213) is sleeved on the surface of the driving motor (1201), and the second limiting plate (1213) is fixedly connected to the housing (1) on a side close to the housing (1).

7. The particle size control and screening device for dry and wet method sand production according to claim 1 is characterized in that: Two positioning plates (16) are fixedly mounted on the front and rear sides of the connection shell (2), and the side of the positioning plates (16) close to the outer shell (1) is fixedly connected to the outer shell (1).

8. The particle size control and screening device for dry and wet method sand production according to claim 1 is characterized in that: Two stabilizing blocks (17) are fixedly mounted on the front and rear sides of the protective shell (4), and the stabilizing blocks (17) are fixedly connected to the connecting shell (2) on a side close to the connecting shell (2).

9. The particle size control and screening device for dry and wet method sand production according to claim 1, characterized in that: Two stabilizing plates (18) are fixedly mounted on the front and rear sides of the support shell (11), and the stabilizing plates (18) are fixedly connected to the shell (1) on a side close to the shell (1).

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