Raw material screening device for calcium oxide production
The screening frustum and guide ring seat driven by the vibrating motor and differential motor, combined with the guide plate and discharge plate, solve the problem of incomplete screening in the existing technology, improve the purity and quality of calcium oxide, and remove dust through the dust removal mechanism to protect the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANDE TAIHE NEW MATERIAL CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-12
AI Technical Summary
In the existing calcium oxide production process, inclined screening devices are prone to damaging the inner wall of the rollers and incomplete screening, resulting in residual stone fragments that affect the purity and quality of calcium oxide.
A vibrating motor-driven screening platform is used for vibrating screening, and a differential motor drives the guide ring seat to rotate. Together with the guide plate and discharge plate, it realizes the circumferential movement and thorough screening of limestone. At the same time, a dust removal mechanism is set up to remove dust.
It achieves efficient screening of limestone, improves the purity and quality of calcium oxide, and effectively removes dust through a dust removal mechanism, protecting the equipment and reducing the residue of crushed stone.
Smart Images
Figure CN224221938U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of calcium oxide production technology, specifically a raw material screening device for calcium oxide production. Background Technology
[0002] Calcium oxide is a commonly used chemical raw material, which is obtained by crushing, screening and calcining various raw materials such as limestone, shells and marble. In the production process of calcium oxide, these raw materials need to be screened to remove impurities such as mud, dust and fine powder mixed in with the raw materials, thereby improving the purity and quality of the produced calcium oxide.
[0003] During calcium oxide production, limestone needs to be crushed into pieces of about 150mm. This crushing process produces many smaller pieces, and those with a diameter of less than 50mm are usually screened out. Existing screening methods often use inclined screens, which are driven by a motor to rotate inclined rollers, allowing the limestone to fall freely. During the fall, pieces smaller than the screen mesh size are screened out. However, the rollers have a large drop from top to bottom, and since limestone often has sharp edges, the limestone can damage the inner wall of the rollers. Furthermore, collisions between limestone pieces can create new fragments, resulting in incomplete screening.
[0004] To address this issue, the present invention provides a raw material screening device for calcium oxide production. The device uses a vibrating motor to vibrate the screening truncated cone to screen limestone, and a differential speed motor drives the guide ring seat to discharge the screened limestone, thus solving the aforementioned problems. Utility Model Content
[0005] To address the shortcomings of existing technologies, this invention provides a raw material screening device for calcium oxide production, which solves the aforementioned problems.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a raw material screening device for calcium oxide production, comprising a screening tank, an internal screening mechanism, and a dust removal mechanism connected to one end of the screening tank. The screening mechanism includes a screening frustum disposed inside the screening tank, a guide ring seat, and a differential motor. The differential motor is fixedly installed on the left side of the bottom of the screening tank. The screening frustum is inclined at 5° from its circular edge to its central platform. A screening mesh with a mesh size of 50mm is fixedly connected to the surface of the screening frustum. A frustum connecting seat is fixedly connected to the bottom of the screening frustum. Buffer columns are symmetrically connected to both ends of the frustum connecting seat. The end of each buffer column away from the frustum connecting seat is fixedly connected to the inner wall of the screening tank. A vibration motor is arranged parallel below one of the buffer columns, and the vibration motor is fixedly connected to the inner wall of the screening tank and its output end is fixedly connected to the frustum connecting seat.
[0007] Preferably, a guide plate is fixedly connected to the left side of the frustum connecting seat, and the end of the guide plate away from the frustum connecting seat is fixedly connected to the inner wall of the screening tank.
[0008] Preferably, the inside of the guide ring seat is rotatably connected to the frustum connecting seat, the guide ring seat is rotatably connected to the screening tank, an internal gear is fixedly connected to the bottom of the inside of the guide ring seat, a differential gear is fixedly connected to the output shaft of the differential motor, and the differential gear meshes with the internal gear.
[0009] Preferably, an observation glass is fixedly connected to the surface of the screening tank, and a discharge plate fixedly connected to the screening tank is provided below the observation glass. A funnel-shaped inlet is provided at the top of the screening tank, and the bottom end of the funnel-shaped inlet extends into the interior of the screening tank and the bottom end dimension is the same as the dimension of the central frustum of the guide ring seat.
[0010] Preferably, a hopper is fixedly connected to the center of the bottom of the screening tank, a discharge pipe is fixedly connected to the center of the bottom of the hopper, and a discharge valve is fixedly connected to the right side of the discharge pipe.
[0011] Preferably, the dust removal mechanism includes a dust collection box and an annular ventilation pipe. The annular ventilation pipe is fixedly installed inside the screening tank, and dust suction ports are evenly distributed on the surface of the annular ventilation pipe.
[0012] Preferably, a dust collector fan is fixedly installed at one end of the dust collection box, a dust collection drawer is movably installed at the bottom left side of the dust collection box, a filter element is inserted into the upper right end of the dust collection box, a connecting pipe is fixedly connected to the side of the dust collection box away from the dust collector fan, and the end of the connecting pipe away from the dust collection box passes through the sieving tank and is fixedly connected to the sieving tank and communicates with the annular ventilation pipe inside.
[0013] Beneficial effects
[0014] This invention provides a raw material screening device for calcium oxide production. Compared with the prior art, it has the following advantages:
[0015] (1) The raw material screening device for calcium oxide production uses a vibrating motor to vibrate and screen the limestone above the screening platform. The screened crushed stone enters the inside of the feeding hopper and can be discharged through the feeding pipe. The limestone falls above the guide ring seat. The differential speed motor drives the differential gear to rotate, which in turn drives the guide ring seat to rotate. The guide ring seat carries the limestone in a circular motion. When the limestone passes the guide plate, it is squeezed out of the screening tank by the limestone carried by the rear guide ring seat along the extension direction of the guide plate and enters the inside of the discharge plate. It falls freely along the discharge plate and is discharged from the screening tank, completing the screening. The observation glass facilitates the observation of the screening condition inside the screening tank, and the discharge plate facilitates the discharge of the screened limestone.
[0016] (2) The raw material screening device for calcium oxide production uses a dust extraction fan to extract the dust generated by empty screening inside the screening tank, filters the dust through the filter element set inside the dust collection box, and collects the dust through the dust collection drawer. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a schematic diagram of the bottom structure of the screening tank of this utility model;
[0019] Figure 3 This is a schematic diagram of the internal structure of the screening tank of this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the frustum connecting seat of this utility model;
[0021] Figure 5 This is a schematic diagram of the material guide ring seat structure of this utility model;
[0022] Figure 6 This is a schematic diagram of the dust collection box structure of this utility model.
[0023] In the diagram: 1. Screening tank; 11. Observation glass; 12. Discharge plate; 13. Feed hopper; 14. Feed pipe; 15. Feed valve; 16. Funnel-shaped feed inlet; 2. Screening mechanism; 21. Screening frustum; 22. Screening mesh; 23. Frustum connecting seat; 24. Guide plate; 25. Buffer column; 26. Vibrating motor; 27. Guide ring seat; 28. Internal gear; 29. Differential motor; 210. Differential gear; 3. Dust removal mechanism; 31. Dust collection box; 32. Dust suction fan; 33. Dust collection drawer; 34. Filter element; 35. Connecting pipe; 36. Annular ventilation pipe; 37. Dust suction port. Detailed Implementation
[0024] 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 protection scope of the present utility model.
[0025] Example 1:
[0026] Please see Figure 1-5 A raw material screening device for calcium oxide production includes a screening tank 1. A screening mechanism 2 is installed inside the screening tank 1. A dust removal mechanism 3 is connected to one end of the screening tank 1. The screening mechanism 2 includes a screening frustum 21, which is located inside the screening tank 1. The screening mechanism 2 also includes a guide ring seat 27 and a differential motor 29. The differential motor 29 is fixedly installed on the left side of the bottom end of the screening tank 1. The screening frustum 21 is inclined at 5° from its circular edge towards its central platform. The surface of the screening frustum 21... A screen 22 with a mesh size of 50mm is fixedly connected to the screen. A frustum connecting seat 23 is fixedly connected to the bottom of the screen truncated cone 21. Buffer columns 25 are symmetrically connected to both ends of the frustum connecting seat 23. The end of the buffer column 25 away from the frustum connecting seat 23 is fixedly connected to the inner wall of the screening tank 1. A vibration motor 26 is arranged parallel below one of the buffer columns 25. The vibration motor 26 is fixedly connected to the inner wall of the screening tank 1 and its output end is fixedly connected to the frustum connecting seat 23.
[0027] The inside of the guide ring seat 27 is rotatably connected to the frustum connecting seat 23. The guide ring seat 27 is rotatably connected to the screening tank 1. An internal gear 28 is fixedly connected to the bottom of the inside of the guide ring seat 27. A differential gear 210 is fixedly connected to the output shaft of the differential motor 29. The differential gear 210 meshes with the internal gear 28.
[0028] A guide plate 24 is fixedly connected to the left side of the frustum connecting seat 23. The end of the guide plate 24 away from the frustum connecting seat 23 is fixedly connected to the inner wall of the screening tank 1.
[0029] An observation glass 11 is fixedly connected to the surface of the screening tank 1. Below the observation glass 11, a discharge plate 12 is fixedly connected to the screening tank 1. A funnel-shaped inlet 16 is provided at the top of the screening tank 1. The bottom end of the funnel-shaped inlet 16 extends into the interior of the screening tank 1, and the bottom end size is the same as the size of the central frustum of the guide ring seat 27.
[0030] A hopper 13 is fixedly connected to the center of the bottom of the screening tank 1, a discharge pipe 14 is fixedly connected to the center of the bottom of the hopper 13, and a discharge valve 15 is fixedly connected to the right side of the discharge pipe 14.
[0031] In this embodiment, limestone is first fed into the funnel-shaped inlet 16. The limestone falls freely onto the truncated cone at the center of the screening truncated cone 21. The vibration generated by the vibrating motor 26 on the truncated cone connecting seat 23 vibrates and screens the limestone above the screening truncated cone 21. Crushed stone smaller than the mesh diameter of the screen 22 falls into the bottom of the screening tank 1 and enters the discharge hopper 13. This crushed stone can be discharged through the discharge pipe 14, and the opening and closing of the discharge pipe 14 can be controlled by the discharge valve 15. Since the upper surface of the screening truncated cone 21 has a structure that is high in the middle and low around the edges, the limestone will slowly slide down onto the screening truncated cone 21. At the edge, the limestone finally falls above the guide ring seat 27. The differential gear 210 is driven to rotate by the differential motor 29, which in turn drives the guide ring seat 27 to rotate. The guide ring seat 27 carries the limestone in a circular motion. When the limestone passes the guide plate 24, it is squeezed out of the screening tank 1 by the limestone carried by the guide ring seat 27 along the extension direction of the guide plate 24 and enters the discharge plate 12. It then falls freely along the discharge plate 12 and is discharged from the screening tank 1, completing the screening. The observation glass 11 is provided to facilitate the observation of the screening condition inside the screening tank 1, and the discharge plate 12 is provided to facilitate the discharge of the screened limestone.
[0032] Example 2:
[0033] Please see Figure 3-6 This embodiment provides a technical solution based on embodiment one: the dust removal mechanism 3 includes a dust collection box 31 and an annular ventilation pipe 36. The annular ventilation pipe 36 is fixedly installed inside the screening tank 1, and the surface of the annular ventilation pipe 36 is uniformly provided with dust suction ports 37.
[0034] A dust collector fan 32 is fixedly installed at one end of the dust collection box 31. A dust collection drawer 33 is movably installed at the bottom left side of the interior of the dust collection box 31. A filter element 34 is inserted into the upper right end of the interior of the dust collection box 31. A connecting pipe 35 is fixedly connected to the side of the dust collection box 31 away from the dust collector fan 32. The end of the connecting pipe 35 away from the dust collection box 31 passes through the sieving tank 1 and is fixedly connected to the sieving tank 1 and is internally connected to the annular ventilation pipe 36.
[0035] In this embodiment, a large amount of dust is generated when limestone is sieved. The dust-laden air mixed with dust is extracted from the sieve tank 1 by the dust extraction fan 32. The dust enters the interior of the annular ventilation pipe 36 through the dust extraction port 37 and enters the interior of the dust collection box 31 through the connecting pipe 35. The filter element 34 installed inside the dust collection box 31 can filter out the dust. The filtered dust will fall into the dust collection drawer 33. After sieving, the user can pull out the dust collection drawer 33 to dispose of the dust. When the filtration efficiency of the filter element 34 decreases, the user can remove the filter element 34 and clean it.
[0036] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A raw material screening device for calcium oxide production, comprising a screening tank (1), characterized in that: The screening tank (1) is equipped with a screening mechanism (2) inside. A dust removal mechanism (3) is connected to one end of the screening tank (1). The screening mechanism (2) includes a screening frustum (21) which is located inside the screening tank (1). The screening mechanism (2) also includes a guide ring seat (27) and a differential motor (29). The differential motor (29) is fixedly installed on the left side of the bottom end of the screening tank (1). The screening frustum (21) is inclined at 5° from the edge to the center platform. A screening screen is fixedly connected to the surface of the screening frustum (21). (22) The mesh size of the sieve (22) is 50mm. The bottom end of the sieve frustum (21) is fixedly connected to the frustum connecting seat (23). The two ends of the frustum connecting seat (23) are symmetrically connected to the buffer columns (25). The end of the buffer column (25) away from the frustum connecting seat (23) is fixedly connected to the inner wall of the screening tank (1). A vibration motor (26) is arranged parallel below one of the buffer columns (25). The vibration motor (26) is fixedly connected to the inner wall of the screening tank (1) and its output end is fixedly connected to the frustum connecting seat (23).
2. The raw material screening device for calcium oxide production according to claim 1, characterized in that: A guide plate (24) is fixedly connected to the left side of the frustum connecting seat (23), and the end of the guide plate (24) away from the frustum connecting seat (23) is fixedly connected to the inner wall of the screening tank (1).
3. The raw material screening device for calcium oxide production according to claim 1, characterized in that: The inside of the guide ring seat (27) is rotatably connected to the frustum connecting seat (23), the guide ring seat (27) is rotatably connected to the screening tank (1), the bottom of the inside of the guide ring seat (27) is fixedly connected to an internal gear (28), the output shaft of the differential motor (29) is fixedly connected to a differential gear (210), and the differential gear (210) meshes with the internal gear (28).
4. The raw material screening device for calcium oxide production according to claim 1, characterized in that: An observation glass (11) is fixedly connected to the surface of the sieving tank (1). Below the observation glass (11) is a discharge plate (12) fixedly connected to the sieving tank (1). A funnel-shaped inlet (16) is provided at the top of the sieving tank (1). The bottom end of the funnel-shaped inlet (16) extends into the interior of the sieving tank (1) and the size of the bottom end is the same as the size of the central frustum of the guide ring seat (27).
5. The raw material screening device for calcium oxide production according to claim 1, characterized in that: A feeding hopper (13) is fixedly connected to the center of the bottom of the screening tank (1), and a feeding pipe (14) is fixedly connected to the center of the bottom of the feeding hopper (13). A feeding valve (15) is fixedly connected to the right side of the feeding pipe (14).
6. The raw material screening device for calcium oxide production according to claim 1, characterized in that: The dust removal mechanism (3) includes a dust collection box (31) and an annular ventilation pipe (36). The annular ventilation pipe (36) is fixedly installed inside the screening tank (1). The surface of the annular ventilation pipe (36) is uniformly provided with dust suction ports (37).
7. A raw material screening device for calcium oxide production according to claim 6, characterized in that: A vacuum fan (32) is fixedly installed at one end of the dust collection box (31). A dust collection drawer (33) is movably installed on the left side of the bottom of the dust collection box (31). A filter element (34) is inserted into the upper right end of the dust collection box (31). A connecting pipe (35) is fixedly connected to the side of the dust collection box (31) away from the vacuum fan (32). The end of the connecting pipe (35) away from the dust collection box (31) passes through the sieving tank (1) and is fixedly connected to the sieving tank (1), and its interior is connected to the annular ventilation pipe (36).