Multi-stage screening device for calcium carbonate production

By setting up vibration and feeding components, uniform material distribution and improved screening efficiency are achieved. This solves the problem of screen hole clogging caused by the increase of power source in the power source of the screening device in the existing technology, prevents screen hole clogging, improves uniform material screening efficiency, ensures stable operation of the equipment, and improves the screening efficiency and stability of the screening device.

CN224142791UActive Publication Date: 2026-04-21NANZHAO COUNTY XINRONGHUA MICRO POWDER TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANZHAO COUNTY XINRONGHUA MICRO POWDER TECH CO LTD
Filing Date
2025-05-07
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing multi-stage screening devices have multiple screen plates. As the number of screen plates increases, the power source also increases, resulting in more manpower, material resources and time required for installation and coordinated operation. In addition, the screen holes are prone to clogging, which affects screening efficiency and equipment stability.

Method used

The system employs a vibration assembly and a feeding assembly. The vibration assembly generates equipment vibration through the interaction of a motor-driven roller and a protrusion, ensuring uniform material distribution and preventing blockages. The feeding assembly drives multiple feeding shafts to operate synchronously through gear meshing, avoiding material accumulation and ensuring a smooth screening process.

Benefits of technology

It achieves uniform material distribution and improves screening efficiency, prevents screen clogging, ensures stable equipment operation, and improves production efficiency and stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a multi-stage screening device for calcium carbonate production, and relates to the technical field of calcium carbonate production. The device comprises a supporting mechanism, the supporting mechanism comprises a first supporting plate, a vibration assembly is arranged at the top of the first supporting plate, the vibration assembly comprises a second supporting plate arranged above the first supporting plate, and a discharging assembly comprises a box fixedly connected to the top of the second supporting plate. The vibration assembly is arranged, the first motor is started to drive the fixing rod to rotate and drive the rolling wheel to do circular motion, the protruding block at the bottom of the second supporting plate is continuously rolled by the rolling wheel in the rotating process of the rolling wheel, upward thrust is generated to enable equipment to ascend, after the rolling wheel leaves the protruding block, the equipment is reset under the action of the spring and the telescopic rod, and the rolling wheel continuously rotates; the first sieve plate, the second sieve plate and the third sieve plate vibrate, on one hand, materials are distributed more evenly, on the other hand, the positions of the materials prone to being blocked are changed, and sieve holes are prevented from being blocked.
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Description

Technical Field

[0001] This utility model belongs to the field of calcium carbonate production technology, and in particular relates to a multi-stage screening device for calcium carbonate production. Background Technology

[0002] Calcium carbonate is an important inorganic non-metallic material widely used in many industries such as construction, plastics, rubber, papermaking, and coatings. Quality control in its production process is crucial. In the calcium carbonate production process, the screening process is a key step to ensure that the particle size of the product meets the requirements of different application scenarios. Existing multi-stage screening devices have multiple screen plates. As the number of screen plates increases, the number of power sources also increases. Installing multiple power sources requires more manpower, material resources, and time. It is necessary to ensure that multiple power sources work together. Utility Model Content

[0003] The purpose of this invention is to provide a multi-stage screening device for calcium carbonate production. By setting up a vibration component, the material can be evenly distributed, the screening effect can be improved, the screen holes can be prevented from clogging, and the equipment can be ensured to operate efficiently and stably. This invention changes the position of materials that are prone to clogging, prevents screen hole blockage, improves screening efficiency, and ensures stable operation of the equipment. It solves the problem that existing multi-stage screening devices require more manpower, material resources, and time to install multiple power sources due to the addition of multiple screen plates, and the need to ensure that multiple power sources work together.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model is a multi-stage screening device for calcium carbonate production, including a support mechanism. The support mechanism includes a support plate one, and a vibration component is provided on the top of the support plate one. The vibration component includes a support plate two disposed above the support plate one. The feeding component includes a box body fixedly connected to the top of the support plate two.

[0006] The vibration assembly includes several fixed rings 1 fixedly connected to the top of a support plate 1. Each fixed ring 1 has a telescopic rod inside. The bottom of the telescopic rod is fixedly connected to the support plate 1. A spring is sleeved on the outer surface of the telescopic rod. The bottom of the spring is fixedly connected to the support plate 1. A protective box is fixedly connected to the top center of the support plate 1. A motor 1 is fixedly connected inside the protective box. A fixed rod is fixedly connected to the output end of the motor 1. A roller is rotatably connected to the left side of the fixed rod. A support plate 2 is fixedly connected to the top of the several telescopic rods. Fixed rings 2 are fixedly connected to the four corners of the bottom of the support plate 2. The top of the spring is fixedly connected to the bottom of the support plate 2. Several protrusions are fixedly connected to the bottom of the support plate 2.

[0007] Furthermore, a discharge port is fixedly connected to the top of the box, and three rotating shafts pass through the discharge port. The rotating shafts are rotatably connected to the box, and a discharge shaft is fixedly connected to the outer surface of each rotating shaft. Driven by motor one, the device makes a circular motion, and through the interaction with the bottom protrusion of support plate two, it generates an upward thrust, pushing support plate two and the entire device upward. During the continuous rotation, the device vibrates up and down, providing the necessary vibration conditions for material screening, helping the material to be evenly distributed, changing the particle spacing, and preventing the material from clogging the screen holes, thereby improving screening efficiency and the stability of equipment operation.

[0008] Furthermore, three gears are rotatably connected to the right side of the discharge port, and each of the three gears is fixedly connected to one of the three rotating shafts. A support block is fixedly connected to the top of the housing, and a second motor is fixedly connected to the inner wall of the support block. The output end of the second motor is fixedly connected to the third rotating shaft located at the front by bolts. The rotating shaft driven by the second motor can drive the other two rotating shafts to rotate synchronously through the meshing transmission between the gears. In this way, the three discharge shafts can operate simultaneously, quickly pushing the material poured into the discharge port, avoiding material accumulation and concentrated falling, ensuring that the material screening work is carried out in an orderly manner, and improving the overall efficiency of the screening process.

[0009] Furthermore, a guide plate is provided below the three feeding shafts. The guide plate is fixedly connected to the inner wall of the box, and a screen plate is fixedly connected inside the box. During the process of the material being pushed down by the feeding shafts, the guide plate guides the material with its specific shape and angle, causing the material to disperse to both sides and preventing the material from accumulating in one place, so that the material can fall evenly onto the inclined screen plate below.

[0010] Furthermore, the outer surface of the box is provided with a slot, and a receiving box is fixedly connected to the outer surface of the box. A second sieve is provided below the first sieve and is fixedly connected to the box. The function of the receiving box is to collect the material that is larger than the sieve hole after being screened by the first sieve. During the material screening process, under the vibration and tilting action of the first sieve, the material larger than the sieve hole will flow along the tilting direction of the first sieve and eventually flow into the corresponding receiving box.

[0011] Furthermore, a receiving box two is fixedly connected to the left side of the box body, and a sieve plate three is provided below the sieve plate two. The sieve plate three is fixedly connected to the inner wall of the box body. The receiving box two helps to further separate and collect materials according to particle size, so that materials of different sizes can be stored separately, which is convenient for subsequent processing and utilization, and ensures the continuity and efficiency of the screening process.

[0012] Furthermore, a receiving box three is provided at the bottom of the sieve plate three. The receiving box three has sliding grooves on both the left and right sides. Sliding rails are fixedly connected to the left and right sides of the inner wall of the box. The sliding grooves are slidably connected to the sliding rails. The receiving box three is designed to be pull-out, which allows operators to easily take out the collected materials, improves the efficiency of material collection and processing, and also facilitates the cleaning and maintenance of the receiving box three, ensuring the smooth operation of the equipment.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model incorporates a vibration assembly. Specifically, a starting motor drives a fixed rod and rollers to rotate via a shaft. When the rollers pass over the bottom protrusion of the support plate, the equipment rises. As the rollers move away, the equipment resets under the influence of springs, telescopic rods, and gravity. The continuous rotation of the rollers causes the equipment to vibrate, which in turn causes the screen plates one, two, and three to vibrate. This ensures uniform material distribution, improves screening efficiency, prevents screen hole clogging, and guarantees efficient and stable operation of the equipment. It also changes the position of materials prone to clogging, preventing screen hole blockage and improving screening efficiency while ensuring stable equipment operation.

[0015] 2. This utility model features a feeding assembly. Specifically, during material screening, the user pours the material into the feeding port and starts motor two, which drives shaft three and gears to rotate. Through gear meshing, the other two shaft three rotate synchronously, driving the three feeding shafts to quickly push the material to prevent accumulation. As the material falls, the guide plate guides it to disperse to both sides and fall evenly onto the inclined screen plate one. Material larger than the screen holes flows to the receiving box one for discharge; material smaller than the screen holes continues to be screened by screen plate two, and qualified material falls onto the flat screen plate three. After vibration, it is discharged from the pull-out receiving box three. The receiving box three cooperates with the sliding rail inside the box through the sliding grooves on both sides, and can be pulled out to collect materials conveniently, improving efficiency.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the right-side cross-sectional structure of the box body of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the feed port of this utility model;

[0021] Figure 4 This is a schematic diagram of the overall structure of the vibration component of this utility model;

[0022] Figure 5 This utility model Figure 4 A magnified structural diagram of A in the diagram.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Support mechanism; 111. Support plate one; 2. Vibration assembly; 211. Fixing ring one; 212. Telescopic rod; 213. Spring; 214. Fixing ring two; 215. Support plate two; 216. Protective box; 217. Motor one; 222. Fixing rod; 223. Roller; 224. Protrusion; 3. Feeding assembly; 31. Box body; 32. Feeding port; 33. Support block; 34. Motor two; 35. Gear; 36. Rotating shaft three; 37. Feeding shaft; 38. Guide plate; 39. Screen plate one; 392. Screen plate two; 393. Screen plate three; 394. Receiving box one; 395. Receiving box two; 396. Receiving box three; 397. Sliding track; 398. Slide groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0026] Please see Figures 1-5 As shown, this utility model is a multi-stage screening device for calcium carbonate production, including a support mechanism 1. The support mechanism 1 includes a support plate 111. A vibration component 2 is provided on the top of the support plate 111. The vibration component 2 includes a support plate 215 provided above the support plate 111. A feeding component 3 is provided on the top of the support plate 215. The feeding component 3 includes a box 31 fixedly connected to the top of the support plate 2.

[0027] The vibration assembly 2 includes several fixed rings 211 fixedly connected to the top of a support plate 111. Each fixed ring 211 contains a telescopic rod 212. The bottom of the telescopic rod 212 is fixedly connected to the support plate 111. A spring 213 is fitted onto the outer surface of the telescopic rod 212, and the bottom of the spring 213 is fixedly connected to the support plate 111. A protective box 216 is fixedly connected to the top center of the support plate 111. A motor 217 is fixedly connected inside the protective box 216. A fixed rod 222 is fixedly connected to the output end of the motor 217. A roller 223 is rotatably connected to the left side of the fixed rod 222. A support plate 215 is fixedly connected to the top of the telescopic rods 212. Fixed rings 214 are fixedly connected to the four corners of the bottom. The top of the spring 213 is fixedly connected to the bottom of the support plate 215. Several protrusions 224 are fixedly connected to the bottom of the support plate 215. When the motor 217 is started, the motor drives the fixed rod 222 to rotate through the shaft, which in turn drives the roller 223 to make a circular motion. The bottom of the support plate 215 has protrusions 224. When the roller 223 rotates, it continuously passes over the protrusions, generating an upward pushing force on the support plate 2, causing the equipment to rise. After the roller leaves the protrusion, under the action of the spring 213 and the telescopic rod 212, the equipment returns to its original position by gravity. The roller continues to rotate, causing the support plate 2 to drive the equipment to vibrate up and down. The screen plates 39, 392, and 393 vibrate accordingly. This not only makes the material to be screened more evenly distributed and the particle spacing constantly changing, improving the screening speed and effect, but also changes the position of the material that may clog the screen holes, preventing the material from accumulating at the screen holes, avoiding screen blockage, effectively improving screening efficiency, and ensuring stable operation of the equipment.

[0028] The top of the housing 31 is fixedly connected to a discharge port 32. Three rotating shafts 36 pass through the inside of the discharge port 32. The rotating shafts 36 are rotatably connected to the housing 31. The outer surface of each rotating shaft 36 is fixedly connected to a discharge shaft 37.

[0029] Three gears 35 are rotatably connected to the right side of the discharge port 32. The three gears 35 are fixedly connected to three rotating shafts 36 respectively. A support block 33 is fixedly connected to the top of the box 31. A motor 34 is fixedly connected to the inner wall of the support block 33. The output end of the motor 34 is fixedly connected to the rotating shaft 36 located in front by bolts.

[0030] Below the three feeding shafts 37, there are guide plates 38, which are fixedly connected to the inner wall of the box 31. Inside the box 31, there are screen plates 39.

[0031] The outer surface of the box 31 has a slot, and a receiving box 394 is fixedly connected to the outer surface of the box 31. A second sieve plate 392 is provided below the first sieve plate 39, and the second sieve plate 392 is fixedly connected to the box 31.

[0032] A receiving box 395 is fixedly connected to the left side of the box 31, and a sieve plate 393 is provided below the sieve plate 392. The sieve plate 393 is fixedly connected to the inner wall of the box 31.

[0033] The bottom of the sieve plate 393 is equipped with a receiving box 396. The receiving box 396 has grooves 398 on both its left and right sides. Sliding rails 397 are fixedly connected to the left and right sides of the inner wall of the housing 31. The grooves 398 are slidably connected to the sliding rails 397. When screening materials, the user first pours the material to be screened into the discharge port 32, then starts the motor 2 34. The motor drives the rotating shaft 36 to rotate, and the gears 35 mounted on the rotating shaft rotate synchronously. Because the three gears mesh with each other, the other two rotating shafts 36 are also driven, causing the three discharge shafts 37 to rotate synchronously, quickly pushing the material from the discharge port downwards, avoiding... To prevent material accumulation or concentrated falling, during the falling process, the material is guided to both sides and dispersed evenly by the guide plate 38 of a specific shape and angle, falling evenly onto the inclined screen plate 39. Material larger than the screen holes flows to the receiving box 394 for discharge under the action of vibration and inclination. Material smaller than the screen holes passes through the screen holes and falls onto the equally inclined screen plate 392 for further screening. Qualified material falls further onto the flat screen plate 393, and after vibration, is discharged from the receiving box 396. The receiving box 396 adopts a pull-out design, with the sliding grooves 398 on both sides cooperating with the sliding rails 397 inside the box. By pulling out the receiving box, the material can be collected conveniently, improving collection efficiency.

[0034] A specific application of this embodiment is as follows: During use, the starter motor 217 drives the fixed rod 222 to rotate via the rotating shaft. When the fixed rod 222 rotates, it simultaneously drives the roller 223 to move in a circular motion. Due to the protrusion 224 at the bottom of the support plate 215, the roller 223 continuously passes over the protrusion 224 during continuous rotation, generating an upward thrust on the support plate 215. Under the action of the thrust, the entire device moves upward. When the roller 223 leaves the protrusion 224, the overall gravity will return it to its original position under the action of the spring 213 and the telescopic rod 212. Through the continuous rotation of the roller 223... The support plate 215 can drive the entire equipment to move up and down, producing a continuous vibration effect. Due to the vibration of the equipment, the screen plates 39, 392, and 393 will vibrate together. This vibration can make the material to be screened evenly distributed and the spacing between particles constantly change, thereby achieving better and faster screening. Moreover, during the continuous vibration of the screen plates, those materials that may cause blockage will change their position under the action of vibration, making it difficult for them to accumulate at the screen holes. This effectively avoids the situation of material blocking the screen holes, greatly improving screening efficiency and the overall stability of the equipment operation.

[0035] When material screening is required, the user first pours the material to be screened into the feed inlet 32. Then, the motor 2 34 is started, driving the rotating shaft 36 to rotate. The gear 35 mounted on it also rotates synchronously. Because the three gears 35 are meshed, they drive the other two rotating shafts 36 to rotate as well. At this time, the three feed shafts 37 also rotate simultaneously. The rotation of the feed shafts 37 can quickly push the material poured into the feed inlet 32 ​​downwards, avoiding material accumulation or concentrated falling. As the material is pushed downwards by the feed shafts 37, it is subject to specific shapes and angles... The guide plate 38 guides the material to both sides, preventing material accumulation and ensuring it falls evenly onto the inclined screen plate 39. Material larger than the screen openings flows to the receiving box 394 for discharge under vibration and inclination. Material smaller than the screen openings passes through the screen openings and falls onto the inclined screen plate 392. The screening process is repeated. Qualified material continues to fall onto the flat screen plate 393 and, after vibration, falls from the receiving box 396. The receiving box 396 adopts a pull-out design, with side grooves 398 cooperating with the sliding rails 397 inside the box. Pulling the receiving box 3 allows for easy removal of material, improving collection efficiency.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A multi-stage screening device for calcium carbonate production, characterized by: The support mechanism (1) includes a support plate (111), a vibration assembly (2) is provided on the top of the support plate (111), the vibration assembly (2) includes a support plate (215) provided above the support plate (111), a feeding assembly (3) is provided on the top of the support plate (215), and the feeding assembly (3) includes a box (31) fixedly connected to the top of the support plate (215). The vibration assembly (2) includes several fixed rings (211) fixedly connected to the top of the support plate (111). Each of the fixed rings (211) has a telescopic rod (212) inside. The bottom of the telescopic rod (212) is fixedly connected to the support plate (111). A spring (213) is sleeved on the outer surface of the telescopic rod (212). The bottom of the spring (213) is fixedly connected to the support plate (111). A protective box (216) is fixedly connected to the center of the top of the support plate (111). The protective box (216) contains... A motor (217) is fixedly connected to the part. A fixed rod (222) is fixedly connected to the output end of the motor (217). A roller (223) is rotatably connected to the left side of the fixed rod (222). A support plate (215) is fixedly connected to the top of several telescopic rods (212). A fixing ring (214) is fixedly connected to the four corners of the bottom of the support plate (215). The top of the spring (213) is fixedly connected to the bottom of the support plate (215). Several protrusions (224) are fixedly connected to the bottom of the support plate (215).

2. A multi-stage sizing device for calcium carbonate production according to claim 1, characterized in that, The top of the box (31) is fixedly connected to a discharge port (32), and three rotating shafts (36) pass through the discharge port (32). The rotating shafts (36) are rotatably connected to the box (31), and a discharge shaft (37) is fixedly connected to the outer surface of each rotating shaft (36).

3. A multi-stage sizing device for calcium carbonate production according to claim 2, characterized in that, Three gears (35) are provided on the right side of the discharge port (32). The three gears (35) are fixedly connected to three rotating shafts (36) respectively. A support block (33) is fixedly connected to the top of the box (31). A motor (34) is fixedly connected to the inner wall of the support block (33). The output end of the motor (34) is fixedly connected to the rotating shaft (36) located in front by bolts.

4. A multi-stage screening device for calcium carbonate production according to claim 3, characterized in that, A guide plate (38) is provided below the three feeding shafts (37), the guide plate (38) is fixedly connected to the inner wall of the box (31), and a screen plate (39) is fixedly connected inside the box (31).

5. A multi-stage sizing device for calcium carbonate production according to claim 4, characterized in that, The outer surface of the box (31) is provided with a slot, and a receiving box (394) is fixedly connected to the outer surface of the box (31). A sieve plate (392) is provided below the sieve plate (39), and the sieve plate (392) is fixedly connected to the box (31).

6. A multi-stage sizing device for calcium carbonate production according to claim 5, characterized in that, A receiving box 2 (395) is fixedly connected to the left side of the box body (31), and a sieve plate 3 (393) is provided below the sieve plate 2 (392). The sieve plate 3 (393) is fixedly connected to the inner wall of the box body (31).

7. A multi-stage sizing device for calcium carbonate production according to claim 6, characterized in that, The bottom of the sieve plate three (393) is provided with a receiving box three (396). The receiving box three (396) is provided with a sliding groove (398) on the left and right sides. The inner wall of the box body (31) is fixedly connected with a sliding rail (397) on the left and right sides. The sliding groove (398) is slidably connected to the sliding rail (397).