Crushing and screening device

Abstract

The utility model discloses a crushing and screening device which comprises a box body, a screening assembly is horizontally arranged in the box body, the screening assembly comprises a screen cylinder, a left end plate and a right end plate are fixed to the two ends of the screen cylinder respectively, and a crushing assembly is arranged in the screen cylinder. According to the calcium hydroxide crushing device, the box body, the screening assembly, the crushing assembly, the first motor, the second motor and the feeding assembly are arranged, a calcium hydroxide raw material is added into the screening assembly through the feeding assembly, and in the process that the second motor drives the screening assembly to rotate, the first motor drives the crushing assembly to rotate at a high speed in the screening assembly; the calcium hydroxide raw material continuously rolls along with rotation of the screening assembly, the crushing assembly is matched to strike and crush the calcium hydroxide raw material, the materials with the crushed particles reaching the standard penetrate through a screen barrel of the screening assembly to be discharged, the materials with the particles not reaching the standard are continuously crushed in the screening assembly, and the crushing effect is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of calcium hydroxide processing technology, and in particular to a crushing and screening device. Background Technology

[0002] Crushing and screening are crucial steps in the production of calcium hydroxide (hydrated lime) to obtain high-purity products. After limestone is calcined to produce quicklime, it needs to be converted into calcium hydroxide through crushing, slaking, and screening. When calcium hydroxide is added to water, it forms two layers: the upper aqueous solution is called clear limewater, and the lower suspension is called lime milk or lime slurry. The clear limewater can be used to test for carbon dioxide, while the turbid lime milk is a building material.

[0003] A search revealed that patent CN222325298U discloses a limestone screening device for calcium hydroxide production. This device places limestone raw material into a crushing chamber, where a motor drives two crushing rollers to rotate, crushing the limestone. The crushed limestone particles fall onto a second screening plate, where a vibrator vibrates both the first and second screening plates, achieving multi-stage screening of the limestone particles and improving screening efficiency. However, while this device uses multi-stage screening plates, single-stage crushing by the crushing rollers cannot guarantee that the material will be crushed to the specified particle size. Large particles remaining on the screen surface need to be collected and crushed again, adding an extra step and affecting overall production efficiency. Therefore, further improvements are needed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a crushing and screening device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a crushing and screening device, comprising a housing, wherein a screening component is horizontally arranged inside the housing, and the screening component includes a screen cylinder, with a left end plate and a right end plate fixed at both ends of the screen cylinder, and a crushing component is arranged inside the screen cylinder; a first motor for driving the crushing component to rotate is fixed on the outer wall of the housing near the left end plate, and a second motor for driving the screening component to rotate is fixed on the outer wall of the housing above the first motor; a feeding component is inserted through and fixed to the housing near the right end plate, the feeding component including a feeding pipe that penetrates through the housing and is fixedly connected to the housing, one end of the feeding pipe inside the housing penetrating the right end plate and rotatably connected to the right end plate via a bearing; and a cleaning component is fixed to the top wall of the housing.

[0006] Furthermore, a plurality of vertical rods are fixed to the lower surface of the box, and the bottom ends of the plurality of vertical rods are jointly fixedly connected to a base plate.

[0007] Furthermore, a hopper is fixedly connected to the top of the feed pipe, and a discharge hopper is fixedly connected to the bottom wall of the box.

[0008] Furthermore, the crushing component includes a horizontal shaft that penetrates the side wall of the box and the left end plate. The horizontal shaft is rotatably connected to the box and the left end plate through bearings, and the horizontal shaft is fixedly connected to the output end of the first motor. Several rods are fixed on the surface of the horizontal shaft.

[0009] Furthermore, an internal gear ring is fixed to the left end plate near the second motor, and a drive shaft is fixed to the output end of the second motor. The drive shaft passes through the side wall of the housing and is rotatably connected to the housing through a bearing. A gear is fixed to one end of the drive shaft inside the housing, and the gear meshes with the internal gear ring.

[0010] Furthermore, multiple flaps are fixed together between the left end plate and the right end plate, and the multiple flaps are in contact with the inner wall of the screen cylinder.

[0011] Furthermore, the cleaning assembly includes multiple springs fixed to the top wall of the housing, with a brush fixed to the bottom of each spring, and the bottom of the brush being in contact with the surface of the screen cylinder.

[0012] The beneficial effects of this utility model are:

[0013] 1. In use, this utility model is a crushing and screening device, which includes a housing, a screening component, a crushing component, a first motor, a second motor, and a feeding component. Calcium hydroxide raw material is added to the screening component through the feeding component. As the second motor drives the screening component to rotate, the first motor drives the crushing component to rotate at high speed inside the screening component. The calcium hydroxide raw material tumbles continuously with the rotation of the screening component, and is crushed by the crushing component. Material with acceptable particle size passes through the screen cylinder of the screening component and is discharged. Material with unacceptable particle size is continuously crushed inside the screening component to ensure the crushing effect.

[0014] 2. When in use, this utility model is a crushing and screening device equipped with a cleaning component. The cleaning component continuously scrapes the rotating screen cylinder, thereby preventing material from getting stuck in the mesh of the screen cylinder, thus ensuring the screening effect of the screen cylinder. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific 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.

[0016] Figure 1 : Overall perspective view of this utility model;

[0017] Figure 2 : Overall sectional view of this utility model;

[0018] Figure 3 : A three-dimensional view of the screening component of this utility model;

[0019] Figure 4 The present utility model Figure 2 Enlarged view of point A in the middle.

[0020] The attached figures are labeled as follows:

[0021] 1. Box body; 2. Screening assembly; 21. Left end plate; 22. Right end plate; 23. Screen cylinder; 24. Flip plate; 25. Internal gear ring; 3. Crushing assembly; 31. Horizontal shaft; 32. Rod body; 4. First motor; 5. Second motor; 51. Drive shaft; 52. Gear; 6. Feeding assembly; 61. Feed pipe; 62. Hopper; 7. Discharge hopper; 8. Cleaning assembly; 81. Spring; 82. Brush; 9. Vertical rod; 10. Base plate. Detailed Implementation

[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1-4 As shown, a crushing and screening device is disclosed, comprising a housing 1, a screening component 2 horizontally arranged inside the housing 1, and the screening component 2 including a screen cylinder 23, with a left end plate 21 and a right end plate 22 fixed at both ends of the screen cylinder 23 respectively, and a crushing component 3 arranged inside the screen cylinder 23. A first motor 4 for driving the crushing component 3 to rotate is fixed on the outer wall of the housing 1 near the left end plate 21, and a second motor 5 for driving the screening component 2 to rotate is fixed on the outer wall of the housing 1 above the first motor 4. A feeding component 6 is inserted through and fixed to the housing 1 near the right end plate 22, and the feeding component 6 includes a feeding pipe 61 that penetrates the housing 1 and is fixedly connected to the housing 1. One end of the feeding pipe 61 inside the housing 1 penetrates the right end plate 22 and is rotatably connected to the right end plate 22 via a bearing. A cleaning component 8 is fixed to the inner top wall of the housing 1.

[0024] Multiple vertical rods 9 are fixed to the lower surface of the box 1, and the bottom ends of the multiple vertical rods 9 are fixedly connected to the base plate 10.

[0025] In this embodiment, a controller (not shown in the figure) is mounted on the surface of the base plate 10. The controller specifically adopts the METSO / Nordberg IC series, specifically IC50. The second motor 5 is a geared motor. The specific models of the first motor 4 and the second motor 5 are not limited. The controller controls the operation of the first motor 4 and the second motor 5.

[0026] A hopper 62 is fixedly connected to the top of the feed pipe 61, and a discharge hopper 7 is fixedly connected to the bottom wall of the box body 1.

[0027] When adding calcium hydroxide raw material, it is added into the hopper 62. The material enters the screen cylinder 23 along the feed pipe 61. The material screened by the screen cylinder 23 is discharged from the discharge hopper 7.

[0028] The crushing component 3 includes a horizontal shaft 31 that penetrates the side wall of the box 1 and the left end plate 21. The horizontal shaft 31 is rotatably connected to the box 1 and the left end plate 21 through bearings, and the horizontal shaft 31 is fixedly connected to the output end of the first motor 4. Several rods 32 are fixed on the surface of the horizontal shaft 31.

[0029] The first motor 4 drives the horizontal shaft 31 and several rods 32 to rotate at high speed. When the material comes into contact with the rods 32, the rods 32 strike the material to crush it. The horizontal shaft 31 and the feed pipe 61 support the left end plate 21 and the right end plate 22 respectively, thereby supporting the entire screening assembly 2.

[0030] An internal gear ring 25 is fixed on the left end plate 21 near the second motor 5. A drive shaft 51 is fixed at the output end of the second motor 5. The drive shaft 51 passes through the side wall of the housing 1 and is rotatably connected to the housing 1 through a bearing. A gear 52 is fixed at one end of the drive shaft 51 inside the housing 1. The gear 52 meshes with the internal gear ring 25.

[0031] After the second motor 5 drives the gear 52 to rotate, the gear 52 drives the internal gear ring 25 to rotate, thereby realizing the rotation of the entire screening assembly 2 inside the box 1.

[0032] Multiple flaps 24 are fixed together between the left end plate 21 and the right end plate 22, and the multiple flaps 24 are in contact with the inner wall of the screen cylinder 23.

[0033] When the screening component 2 rotates inside the housing 1, multiple flaps 24 rotate synchronously with the screen cylinder 23, using the flaps 24 to tumble and throw the material inside the screen cylinder 23, increasing the probability of material contact with the rod 32 and ensuring the crushing effect.

[0034] The cleaning component 8 includes multiple springs 81 fixed to the top wall inside the housing 1. The bottom ends of the multiple springs 81 are jointly fixed with a brush 82, and the bottom end of the brush 82 is in contact with the surface of the screen cylinder 23.

[0035] As the screen cylinder 23 rotates, the brush 82 scrapes the screen cylinder 23 in real time to prevent material from clogging the mesh of the screen cylinder 23.

[0036] Working principle: The first motor 4 and the second motor 5 are started. The first motor 4 drives the horizontal shaft 31 and the rod 32 to rotate at high speed, and the second motor 5 drives the screen cylinder 23 to rotate. At this time, calcium hydroxide raw material is added into the screen cylinder 23 through the hopper 62. After the raw material enters the screen cylinder 23, it is continuously tumbled and thrown. The rotating rod 32 then strikes the raw material to achieve crushing. After crushing, the material with the standard particle size passes through the mesh of the screen cylinder 23 and is discharged from the discharge hopper 7. The material with the standard particle size always stays in the screen cylinder 23 and is crushed, so there is no need to collect the material for crushing again, thus improving processing efficiency.

[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 utility model to any specific implementation. 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 this 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 crushing and screening device, comprising a housing (1), characterized in that: A screening assembly (2) is horizontally arranged inside the housing (1), and the screening assembly (2) includes a screen cylinder (23). A left end plate (21) and a right end plate (22) are fixed to both ends of the screen cylinder (23). A crushing assembly (3) is arranged inside the screen cylinder (23). A first motor (4) for driving the crushing assembly (3) to rotate is fixed on the outer wall of the housing (1) near the left end plate (21). The outer wall of the housing (1) is located above the first motor (4). A second motor (5) is fixed to drive the screening component (2) to rotate. A feeding component (6) is fixed to the side of the box (1) near the right end plate (22). The feeding component (6) includes a feeding pipe (61) that passes through the box (1) and is fixedly connected to the box (1). One end of the feeding pipe (61) inside the box (1) passes through the right end plate (22) and is rotatably connected to the right end plate (22) through a bearing. A cleaning component (8) is fixed to the top wall of the box (1).

2. The crushing and screening device according to claim 1, characterized in that: Multiple vertical rods (9) are fixed on the lower surface of the box (1), and the bottom ends of the multiple vertical rods (9) are fixedly connected to a base plate (10).

3. The crushing and screening device according to claim 1, characterized in that: The top of the feed pipe (61) is fixedly connected to a hopper (62), and the bottom wall of the box (1) is fixedly connected to a discharge hopper (7).

4. The crushing and screening device according to claim 1, characterized in that: The crushing component (3) includes a horizontal shaft (31) that passes through the side wall of the box (1) and the left end plate (21). The horizontal shaft (31) is rotatably connected to the box (1) and the left end plate (21) through bearings, and the horizontal shaft (31) is fixedly connected to the output end of the first motor (4). Several rods (32) are fixed on the surface of the horizontal shaft (31).

5. The crushing and screening device according to claim 1, characterized in that: An internal gear ring (25) is fixed on the left end plate (21) near the second motor (5). A drive shaft (51) is fixed at the output end of the second motor (5). The drive shaft (51) passes through the side wall of the housing (1) and is rotatably connected to the housing (1) through a bearing. A gear (52) is fixed at one end of the drive shaft (51) inside the housing (1). The gear (52) meshes with the internal gear ring (25).

6. The crushing and screening device according to claim 1, characterized in that: Multiple flaps (24) are fixed together between the left end plate (21) and the right end plate (22), and the multiple flaps (24) are in contact with the inner wall of the screen cylinder (23).

7. The crushing and screening device according to claim 1, characterized in that: The cleaning component (8) includes multiple springs (81) fixed to the top wall inside the housing (1), and a brush (82) is fixed to the bottom of the multiple springs (81), and the bottom of the brush (82) is in contact with the surface of the screen cylinder (23).

Images