Crushing and sieving device for preparing sodium dichloroisocyanurate powder

Abstract

The invention discloses a crushing and sieving device for preparing sodium dichloroisocyanurate powder, and relates to the technical field of preparation of sodium dichloroisocyanurate powder.The crushing and sieving device comprises a sieving box, a crushing box and mounting blocks, and the mounting blocks are fixedly mounted on the inner wall of the sieving box; according to the sodium dichloroisocyanurate powder screening device, after being crushed, sodium dichloroisocyanurate powder enters the screening box and falls onto the inclined screening plate, the sodium dichloroisocyanurate powder moves in the inclined direction under the action of gravity, vibration generated by working of the crushing device is transmitted to the screening box and the screening plate, powder movement and screening are assisted, the screening efficiency is improved, and the screening effect is improved. Impact force and gravity generated when powder falls act on the elastic pieces to vibrate the elastic pieces, the vibration effect of the screening plate is enhanced, powder accumulation can be prevented through reset vibration of the elastic pieces, the powder is loosened and easy to flow, synchronous screening is promoted when the powder slides down, the screening efficiency and quality are improved, materials are accurately classified and screened according to the particle size, and high-quality raw materials are provided for subsequent procedures.

Description

Technical Field

[0001] The invention relates to the technical field of preparation of sodium dichloroisocyanurate powder, in particular to a crushing and screening device for preparing sodium dichloroisocyanurate powder. Background Art

[0002] Sodium dichloroisocyanurate is a chlorine-based fungicide. This product is a white powder, easily soluble in water, and has the characteristics of high efficiency, rapidity, broad spectrum, and safety. When sodium dichloroisocyanurate powder is produced in the workshop, it is industrially made into a solid and then crushed into a powder by equipment.

[0003] The existing screening devices for preparing sodium dichloroisocyanurate powder, first of all, in terms of screening structure design, most traditional screening devices use simple flat screening plates, lacking an effective guiding mechanism for powder fluidity and dispersibility, which makes the powder prone to accumulation during the screening process, especially when the powder particles are uneven in size, have high humidity or contain sticky components, the accumulation problem is more prominent, the accumulated powder will clog the sieve holes, reducing the effective screening area, resulting in low screening efficiency, and a large amount of fine powder that meets the particle size requirements cannot pass through the screen in time, affecting the particle size distribution uniformity and yield rate of the product. Summary of the invention

[0004] The object of the present invention is to provide a pulverizing and screening device for preparing sodium dichloroisocyanurate powder to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides a crushing and screening device for preparing sodium dichloroisocyanurate powder, comprising a screening box and a crushing box, including a mounting block, the inner wall of the screening box is fixedly mounted with the mounting block; an elastic member, fixedly mounted on the top of the mounting block, the cross-section of the elastic member is a semi-arc shape, and the top of the elastic member is fixedly mounted with a screening plate; the screening plate, the screening plate is inclined; a material guide plate, fixedly mounted on the inner wall of the screening box, the inclination direction of the material guide plate is opposite to that of the screening plate, and one side of the material guide plate extends to the outside of the screening box through a discharge port.

[0006] Furthermore, it also includes a crushing device, which is arranged inside the crushing box. The crushing device includes multiple crushing rollers, one end of the crushing roller in the middle position is connected to a servo motor, and a transmission device is arranged between the two crushing rollers, and the transmission device consists of a transmission roller and a transmission belt.

[0007] Furthermore, two guide blocks are fixedly mounted on the inner bottom wall of the crushing box, the slopes of the two guide blocks are arranged opposite to each other, a discharge port is arranged between the two guide blocks, and the discharge port is arranged above the screening plate.

[0008] Furthermore, a box body is fixedly installed on one side of the screening box, a DC motor is fixedly installed on one side of the box body, a driving end of the DC motor is connected to a first rotating roller, the other end of the first rotating roller is rotatably connected to the box body, a second rotating roller and a third rotating roller are rotatably connected to the box body, wherein the third rotating roller is rotatably connected to a square plate extending from the box body, the outer walls of the first rotating roller, the second rotating roller and the third rotating roller are transmission-connected to a conveyor belt, sprockets are fixedly installed on both ends of the first rotating roller and the third rotating roller, chains matching the sprockets are fixedly installed on both side edges of the conveyor belt, a plurality of conveying plates are arranged on the outer wall of the conveyor belt, the conveying plates are inclined, a guide plate is fixedly installed on the bottom of the screening box, and the inclined surface of the guide plate extends to the bottom of the box body.

[0009] Furthermore, the first rotating roller, the second rotating roller and the third rotating roller are distributed on the box body in an L shape, and the second rotating roller abuts against the inner wall of the conveyor belt, so that one side of the conveyor belt is bent at 90 degrees.

[0010] Furthermore, a support block is fixedly mounted on the box body, and a support block is rotatably connected to the support block, and the support block abuts against an outer wall of the conveyor belt on the other side, so that the conveyor belt on the other side is also bent 90 degrees.

[0011] Furthermore, baffles are fixedly installed on both sides of the conveying plate.

[0012] Furthermore, the elastic member is made of spring steel.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, after the sodium dichloroisocyanurate powder is crushed, it enters the screening box and falls onto the inclined screening plate, and moves along the inclined direction under the action of gravity. The vibration generated by the operation of the crushing device is transmitted to the screening box and the screening plate, which helps the powder to move and screen. The impact force of the falling powder and the gravity act on the elastic member to vibrate it, thereby enhancing the vibration effect of the screening plate. The resetting vibration of the elastic member can prevent the powder from accumulating, making the powder loose and easy to flow, and promoting synchronous screening when it slides down, thereby improving the screening efficiency and quality, allowing the material to be accurately classified and screened according to the particle size, and providing high-quality raw materials for subsequent processes.

[0014] 2. In the present invention, after the sodium dichloroisocyanurate powder is screened, the unscreened large-size particles fall onto the slope of the guide plate, and slide to the bottom of the box along the inclined surface under the action of gravity. At this time, the DC motor is started, and its power drives the first rotating roller to rotate, driving the sprocket to rotate synchronously. Because the sprocket is tightly meshed with the chain, the chain drives the conveyor belt to circulate clockwise, and the conveyor plate with an inclined distribution on the outer surface of the conveyor belt forms an angle with the conveyor belt. During its continuous rotation, the conveyor plate efficiently digs and carries the accumulated powder particles. When the conveyor plate carrying the powder runs to the bending part of the box with the conveyor belt, the conveyor plate gradually changes the inclination angle downward under the action of the mechanical structure, and the powder is accurately poured into the feed hopper at the top of the crushing box, starting a new round of grinding and screening process to ensure that the particle size of the sodium dichloroisocyanurate powder is finer and more uniform to meet the high-quality production requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the internal structure of the screening box of the present invention; Figure 2 It is a schematic diagram of the internal structure of the box of the present invention; Figure 3 It is a schematic diagram of the connection structure between the screening plate and the elastic member in the present invention; Figure 4 It is a schematic diagram of the connection structure between the support block and the guide roller in the present invention; Figure 5 It is a schematic diagram of the connection structure between the first rotating roller and the gear in the present invention; Figure 6 for Figure 2 A magnified view of the structure at center A; Figure 7 for Figure 2 A magnified view of the structure at point B.

[0016] In the figure: 1. screening box; 2. screening plate; 3. crushing device; 301. servo motor; 302. transmission device; 303. crushing roller; 4. elastic member; 5. mounting block; 6. guide plate; 7. crushing box; 8. box body; 9. DC motor; 10. first rotating roller; 11. conveyor belt; 12. conveyor plate; 13. second rotating roller; 14. third rotating roller; 15. support block; 16. guide roller; 17. guide plate; 18. sprocket; 19. chain. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-Figure 7 , the present invention provides a technical solution: See also Figure 1-Figure 7 As shown, a crushing and screening device for preparing sodium dichloroisocyanurate powder includes a screening box 1 and a crushing box 7, including a mounting block 5, the inner wall of the screening box 1 is fixedly mounted with the mounting block 5; an elastic member 4, fixedly mounted on the top of the mounting block 5, the cross section of the elastic member 4 is a semi-arc shape, and a screening plate 2 is fixedly mounted on the top of the elastic member 4; the screening plate 2 is inclined; a material guide plate 6, fixedly mounted on the inner wall of the screening box 1, the inclination direction of the material guide plate 6 is opposite to that of the screening plate 2, and one side of the material guide plate 6 extends to the outside of the screening box 1 through the discharge port.

[0019] After being crushed, the sodium dichloroisocyanurate powder enters the screening box 1 and falls on the screening plate 2. The screening plate 2 is arranged obliquely, so that the powder moves downward along the inclination direction of the screening plate 2 under the action of its own gravity.

[0020] The vibration generated by the crushing device 3 when working is transmitted to the screening box 1 and the screening plate 2. This vibration helps the powder to move on the screening plate 2 and pass through the sieve holes, which conforms to the basic principle of vibration screening. When the powder falls on the screening plate 2, the impact force and its own gravity act on the elastic part 4, causing it to vibrate, further enhancing the vibration effect of the screening plate 2. These two forces act together on the elastic part 4 connected thereto, causing the elastic part 4 to vibrate, and the elastic part 4 will produce a vibration effect again during the resetting process after the deformation is completed. This vibration can not only effectively prevent the accumulation of powder that falls on the top of the screening plate 2, ensuring that the powder is always in a loose and easy-to-flow state, but also can cause the powder to slide down along the inclined slope of the screening plate 2, and realize synchronous screening during the sliding process, which greatly improves the efficiency and quality of the entire screening process, so that the material can be classified and screened more quickly and accurately according to the particle size, providing a higher quality and standard raw material basis for subsequent production processes.

[0021] As the powder moves on the sieve plate 2, powder particles that meet the sieve hole size will fall through the sieve hole, while larger particles will remain on the sieve plate 2 and continue to roll downward, and finally be discharged from the end of the sieve plate 2, thereby achieving powder screening.

[0022] The powder falling through the sieve holes will fall onto the guide plate 6. The inclination direction of the guide plate 6 is opposite to that of the screening plate 2, and its main function is to guide the powder falling after screening.

[0023] When the powder falls through the sieve holes, it has a certain falling speed and direction. If there is no guide plate 6, the powder may be scattered everywhere, which is not conducive to collection and subsequent processing. The guide plate 6 can change the falling direction of the powder and guide it to a specific collection area, making the collection process more convenient and efficient.

[0024] One side of the guide plate 6 extends to the outside of the screening box 1 through the discharge port, so that the screened powder can be smoothly guided out of the screening box 1. The screening plate 2, elastic member 4, mounting block 5, and guide plate 6 are arranged as screening groups. Two groups of screening groups are fixedly installed inside the screening box 1, respectively arranged on the left and right inner walls of the screening box 1, which can make the crushed powder be divided into two powders with different particle finenesses. Two groups of screening groups are fixedly installed inside the screening box 1, respectively arranged on the left and right inner walls of the screening box 1, which can perform two-stage screening on the crushed powder and divide the powder into two products with different particle finenesses, which can meet different production needs or the requirements of powder particle size for subsequent different processes.

[0025] See also Figure 1-2 , and also includes a crushing device 3, which is arranged inside the crushing box 7. The crushing device 3 includes a plurality of crushing rollers 303. One end of the crushing roller 303 in the middle position is connected to a servo motor 301. A transmission device 302 is arranged between the two crushing rollers 303, and the transmission device 302 consists of a transmission roller and a transmission belt.

[0026] The crushing roller 303 in the middle is driven by a servo motor 301, and drives the other crushing rollers 303 to rotate through a transmission device 302. This transmission method can ensure that each crushing roller 303 maintains a stable and synchronous rotation speed, so that the material is subjected to continuous and uniform extrusion and shearing force between the crushing rollers 303, thereby improving the crushing efficiency, and can quickly crush larger particles of sodium dichloroisocyanurate powder raw materials into smaller particles, meeting the requirements of subsequent production processes for material particle size.

[0027] The arrangement of multiple crushing rollers 303 and the synchronization ensured by the transmission device 302 ensure that the material is subjected to uniform force during the crushing process. Since the rotation speed and rotation direction of each crushing roller 303 are consistent, the material will be evenly crushed into particles of similar sizes when passing through the gaps between the crushing rollers 303, without the situation where some materials are over-crushed and some materials are under-crushed, thereby ensuring the uniformity of the particle size of the crushed material.

[0028] See also Figure 1 Two guide blocks are fixedly installed on the inner bottom wall of the crushing box 7, the slopes of the two guide blocks are arranged oppositely, a discharge port is arranged between the two guide blocks, and the discharge port is arranged above the screening plate 2.

[0029] The slopes of the two guide blocks are arranged opposite to each other. During the screening process, the sodium dichloroisocyanurate powder particles on the screening plate 2 will gradually move toward the discharge port along the slope of the guide block under the action of vibration or other external forces. Due to the guiding effect of the slope, the materials can be gathered near the discharge port in a more orderly manner, rather than being scattered randomly at the bottom of the crushing box 7, thereby improving the concentration of the discharge.

[0030] When the material can be discharged from the discharge port quickly and concentratedly, the material distribution on the screening plate 2 will be more uniform, and new materials to be screened can be added to the screening area in time, so that the screening process can be carried out continuously and efficiently. At the same time, since the material will not accumulate at the bottom, the risk of mixing the screened material with the unscreened material is also reduced, and the accuracy and quality of the screening are improved.

[0031] See also Figure 1-7 A box body 8 is fixedly installed on one side of the screening box 1, and a DC motor 9 is fixedly installed on one side of the box body 8. The driving end of the DC motor 9 is connected to a first rotating roller 10, and the other end of the first rotating roller 10 is rotatably connected to the box body 8. The second rotating roller 13 and the third rotating roller 14 are rotatably connected to the box body 8, wherein the third rotating roller 14 is rotatably connected to the square plate extending from the box body 8, and the outer walls of the first rotating roller 10, the second rotating roller 13, and the third rotating roller 14 are transmission-connected with a conveyor belt 11, and sprockets 18 are fixedly installed at both ends of the first rotating roller 10 and the third rotating roller 14, and chains 19 adapted to the sprockets 18 are fixedly installed on the two side edges of the conveyor belt 11, and a plurality of conveying plates 12 are arranged on the outer wall of the conveyor belt 11, and the conveying plates 12 are arranged obliquely, and a guide plate 17 is fixedly installed at the bottom of the screening box 1, and the inclined surface of the guide plate 17 extends to the bottom of the box body 8.

[0032] When the sodium dichloroisocyanurate powder completes the screening process, those particles that have not passed through the screen and have relatively large particle sizes will naturally fall onto the slope of the guide plate 17. Then, under the action of gravity, these particles will slowly slide down along the inclined surface of the guide plate 17 and finally accumulate in the bottom area of ​​the box 8.

[0033] At this time, the DC motor 9 is started, and the power generated by the motor will drive the first rotating roller 10 to start rotating, and the sprocket 18 connected thereto will also rotate synchronously. Since the sprocket 18 and the chain 19 are tightly engaged, as the sprocket 18 rotates, the chain 19 will drive the conveyor belt 11 to start a clockwise transmission cycle.

[0034] On the outer surface of the conveyor belt 11 , the conveyor plates 12 distributed in an inclined state form a specific angle with the conveyor belt 11 . During the continuous rotation of the conveyor belt 11 , the conveyor plates 12 efficiently dig out and carry the powder particles accumulated there.

[0035] When the conveying plate 12 carrying the powder moves with the conveyor belt 11 to the bending part of the box body 8, the conveying plate 12 will gradually change its inclination angle due to the ingenious design of the mechanical structure, so that it tilts downward, and then the carried powder is accurately poured into the feed hopper on the top of the crushing box 7, thereby starting a new round of grinding and screening process to ensure that the particle size of the sodium dichloroisocyanurate powder can be finer and more uniform to meet high-quality production requirements.

[0036] See also Figure 1-4 The first rotating roller 10, the second rotating roller 13, and the third rotating roller 14 are distributed in an L shape on the box body 8, and the second rotating roller 13 abuts against the inner wall of the conveyor belt 11, so that one side of the conveyor belt 11 is bent at 90 degrees.

[0037] The first rotating roller 10, the second rotating roller 13, and the third rotating roller 14 work together with the support block 15 and the guide roller 16 to jointly shape the unique L-shaped structure of the conveyor belt 11, wherein the horizontal portion of the conveyor belt 11 is positioned directly above the feed hopper, providing great convenience for material transportation. When the conveyor belt 11 is driven stably by various components, the conveying plate 12 installed thereon can efficiently move along a predetermined path until it reaches the upper area of ​​the feed hopper, thereby ensuring that the material on the conveying plate 12 can accurately fall into the feed hopper, achieving seamless connection of the material from the conveying link to the feeding link, greatly improving the operating efficiency of the entire device and the accuracy of material handling, and laying a solid foundation for subsequent processing procedures.

[0038] See also Figure 1-4 A support block 15 is fixedly mounted on the box body 8, and a guide roller 16 is rotatably connected to the support block 15. The guide roller 16 abuts against the outer wall of the conveyor belt 11 on the other side, so that the conveyor belt 11 on the other side is also bent 90 degrees.

[0039] The conveyor plate 12 is precisely installed at the center of the outer wall of the conveyor belt 11, and a certain amount of vacant areas are reserved on both sides of the conveyor belt 11. The guide rollers 16 fit closely with these vacant parts, and with their stable support and guiding function, one side of the conveyor belt 11 is smoothly bent, thereby forming a smooth L-shaped structure. In this process, the position of the guide roller 16 ensures that it can maintain a safe distance from the chain 19 while efficiently performing its guiding function, avoiding contact interference. For example, the layout of the L-shaped conveyor belt 11 allows the conveyor plate 12 arranged thereon to move along the planned transmission path and pass through the area directly above the feed hopper, thereby realizing efficient and accurate transmission of materials, providing a strong guarantee for the smooth operation of the entire production process. See also Figure 5 Baffles are fixedly installed on both sides of the conveying plate 12.

[0040] The V-shaped baffles fixedly installed on both sides of the conveying plate 12 have their corners bent toward the middle of the conveying plate 12, forming an effective blocking structure. During the operation of the conveyor belt 11, when the conveying plate 12 scoops and conveys the sodium dichloroisocyanurate powder, the powder will be confined within the range of the conveying plate 12 due to the presence of the baffles, thereby preventing the material from sliding out from both sides of the conveying plate 12. The V-shaped design enables the conveyor belt 11 to have a good blocking effect on the material regardless of whether it is in different operating states such as horizontal or inclined, thereby effectively preventing the side leakage of the material.

[0041] In the actual sodium dichloroisocyanurate powder conveying process, especially when the conveyor belt 11 runs at a high speed or the conveying path is bumpy or vibrating, the material is easy to scatter from both sides of the conveying plate 12, and the V-shaped baffle can ensure that the material is always constrained on the conveying plate 12, thereby ensuring the integrity of the material and the accuracy of conveying. For example, when the recovered large-particle sodium dichloroisocyanurate powder is re-conveyed to the top feed hopper of the crushing box 7 for re-grinding and screening, it can avoid the powder from being lost during the conveying process, reduce material waste, and improve the material utilization rate of the entire production process.

[0042] See also Figure 3 The elastic member 4 is made of spring steel.

[0043] Spring steel has excellent elasticity. In the crushing and screening device for preparing sodium dichloroisocyanurate powder, the elastic part 4 needs to withstand the vibration of the screening plate 2 and the impact of the powder. The high elasticity of spring steel allows it to quickly recover to its original shape after being compressed or stretched. When the powder falls, it exerts an impact force on the screening plate 2, causing the elastic part 4 to deform. Once the impact force disappears, the elastic part 4 can quickly recover. Through this repeated elastic deformation process, continuous vibration is generated to prevent powder accumulation and promote powder screening. During long-term screening work, the elastic part 4 is required to stably provide elastic recovery force. For example, in a continuous sodium dichloroisocyanurate powder production line, each batch of powder is large and continuously falls on the screening plate 2. The elastic part 4 made of spring steel can effectively cope with frequent impacts and vibrations, ensure the efficient screening work, and reduce the reduction in screening efficiency due to failure of the elastic part.

Claims

1. A crushing and screening device for preparing sodium dichloroisocyanurate powder, comprising a screening box (1) and a crushing box (7), characterized in that: include, A mounting block (5), the inner wall of the screening box (1) having a mounting block (5) fixedly mounted thereon; An elastic member (4) is fixedly mounted on the top of the mounting block (5); the cross section of the elastic member (4) is in a semi-arc shape; and a screening plate (2) is fixedly mounted on the top of the elastic member (4); A screening plate (2), wherein the screening plate (2) is arranged at an incline; A material guide plate (6) is fixedly mounted on the inner wall of the screening box (1); the inclination direction of the material guide plate (6) is opposite to that of the screening plate (2); and one side of the material guide plate (6) extends to the outside of the screening box (1) through the material outlet.

2. A pulverizing and screening device for preparing sodium dichloroisocyanurate powder according to claim 1, characterized in that: The invention also comprises a crushing device (3), wherein the crushing device (3) is arranged inside the crushing box (7), and the crushing device (3) comprises a plurality of crushing rollers (303), one end of the crushing roller (303) in the middle position is connected to a servo motor (301), and a transmission device (302) is arranged between the two crushing rollers (303), and the transmission device (302) is composed of a transmission roller and a transmission belt.

3. A pulverizing and screening device for preparing sodium dichloroisocyanurate powder as claimed in claim 2, characterized in that: Two guide blocks are fixedly mounted on the inner bottom wall of the crushing box (7), the slopes of the two guide blocks are arranged opposite to each other, a discharge port is arranged between the two guide blocks, and the discharge port is arranged above the screening plate (2).

4. A pulverizing and screening device for preparing sodium dichloroisocyanurate powder as claimed in claim 3, characterized in that: A box body (8) is fixedly mounted on one side of the screening box (1), a DC motor (9) is fixedly mounted on one side of the box body (8), a driving end of the DC motor (9) is connected to a first rotating roller (10), the other end of the first rotating roller (10) is rotatably connected to the box body (8), a second rotating roller (13) and a third rotating roller (14) are rotatably connected to the box body (8), wherein the third rotating roller (14) is rotatably connected to a square plate extending from the box body (8), and the first rotating roller (10), the second rotating roller (13), and the third rotating roller (14) are rotatably connected to the square plate extending from the box body (8). The outer walls of the three rotating rollers (14) are connected to a conveyor belt (11) in a transmission manner; sprockets (18) are fixedly mounted on both ends of the first rotating roller (10) and the third rotating roller (14); chains (19) matching the sprockets (18) are fixedly mounted on both side edges of the conveyor belt (11); a plurality of conveyor plates (12) are arranged on the outer wall of the conveyor belt (11); the conveyor plates (12) are arranged in an inclined manner; a guide plate (17) is fixedly mounted on the bottom of the screening box (1); the inclined surface of the guide plate (17) extends toward the bottom of the box body (8).

5. A pulverizing and screening device for preparing sodium dichloroisocyanurate powder as claimed in claim 4, characterized in that: The first rotating roller (10), the second rotating roller (13), and the third rotating roller (14) are distributed in an L shape on the box body (8); the second rotating roller (13) abuts against the inner wall of the conveyor belt (11), so that one side of the conveyor belt (11) is bent at 90 degrees.

6. A pulverizing and screening device for preparing sodium dichloroisocyanurate powder as claimed in claim 5, characterized in that: A support block is fixedly mounted on the box body (8), and a support block (15) is rotatably connected to the support block. The support block (15) abuts against the outer wall of the conveyor belt (11) on the other side, so that the conveyor belt (11) on the other side is also bent at 90 degrees.

7. A pulverizing and screening device for preparing sodium dichloroisocyanurate powder as claimed in claim 6, characterized in that: Baffles are fixedly mounted on both sides of the conveying plate (12).

8. The pulverizing and screening device for preparing sodium dichloroisocyanurate powder according to claim 1, characterized in that: The elastic member (4) is made of spring steel.

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