Efficient discharging device for grinding tail of superfine composite material grinding machine
By introducing a three-layer screen structure and an arc-shaped discharge pipe into the ball mill, the problems of insufficient fineness and specific surface area of the product from the ultrafine powder ball mill were solved, achieving efficient discharge and energy saving.
Patent Information
- Application Number
- CN202520471725.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-18
AI Technical Summary
The fineness and specific surface area of the products from existing ultrafine powder ball mills are limited, resulting in high electricity consumption, high costs, and a lack of market competitiveness.
It adopts a three-layer screen structure, including a first screen, a second screen and a third screen, with the screen holes gradually decreasing. Combined with the arc-shaped discharge pipe design, it improves screening efficiency and material discharge efficiency.
The capacity is increased by more than 5 tons per hour compared to the original capacity, saving more than 40kw of electricity, 200kw per hour, and increasing the specific surface area by 100㎡/kg, thereby reducing production costs and improving product quality.
Smart Images
Figure CN223945786U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to ball mill technical field, specifically is a kind of ultrafine composite material mill tail efficient discharging device. BACKGROUND
[0002] The ball mill of superfine powder grinding industry is generally influenced by the fineness of product discharged from mill and specific surface area, thereby the mill hour is low, and the production electricity is high, in order to ensure higher specific surface area of product discharged from mill, and greatly improve the mill hour and reduce production cost, thereby have better market competitiveness, reduce energy consumption, it is the new topic that superfine powder industry faces currently, our company extracts special R&D personnel to carry out in-depth research, in combination with the actual situation of mill operation, a kind of new mill discharging device is innovated and developed. CONTENT OF UTILITY MODEL
[0003] The utility model provides a kind of ultrafine composite material mill tail efficient discharging device in view of the deficiency of prior art.
[0004] The utility model is realized by the following technical scheme, provide a kind of ultrafine composite material mill tail efficient discharging device, including the first screen, second screen and third screen that are sequentially arranged in ball mill drum, the first screen is opened with first screen hole, the second screen includes second center screen plate and the multiple second outer screen plates that are peripherally arranged, the second center screen plate and second outer screen plate are all opened with second screen hole, the third screen includes center box and the multiple discharge pipes that are peripherally communicated in the outer circle of center box, the discharge pipe side is opened with third screen hole, the width of first screen hole, second screen hole and third screen hole gradually decreases.
[0005] Material and steel ball in the scheme are in ball mill drum, ball mill drum rotates, material is crushed by steel ball, material of certain fineness first passes through first screen, then grinds again, then passes through second screen, finally through the side surface of discharge pipe of third screen enters discharge pipe, finally reaches the material required by the outer end of discharge pipe and is discharged, is separated by three layers of screen, improves the crushing efficiency of ball mill.
[0006] As optimization, the first screen includes first center screen plate and the multiple first outer screen plates that are peripherally arranged, the first center screen plate and first outer screen plate are all opened with first screen hole.The first center screen plate and first outer screen plate in the scheme constitute first screen.
[0007] As optimization, the first screen hole and second screen hole are both long round holes.In the scheme, long round hole is used, and the screening efficiency is high.
[0008] As optimization, the section of discharge pipe is rectangular and is attached to the inner side of drum end plate at the end of ball mill drum. Thus, finished product material is discharged at the position of drum end plate.
[0009] As an optimization, the discharge pipe is arc-shaped. This facilitates the discharge of material towards the end of the discharge pipe when the drum 4 of the ball mill rotates.
[0010] As an optimization, the cross-sectional area of the discharge pipe gradually decreases in the direction away from the central box.
[0011] As an optimization, the second outer sieve plate is trapezoidal, and a plurality of second outer sieve plates form an annular structure.
[0012] The beneficial effects of the present application are as follows: the ultrafine composite material mill tail efficient discharging device can improve the production capacity by more than 5 tons per hour, save more than 40kw of electricity per ton, save more than 200kw of electricity per hour, increase the specific surface area by 100m2 / kg, reduce the production cost, and improve the product quality, thereby greatly reducing the energy consumption and improving the energy utilization. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is a structural schematic view of the present application;
[0014] Figure 2 is a structural schematic view of the present application Figure 1 is a left view of the first sieve net in the present application;
[0015] Figure 3 is a structural schematic view of the present application Figure 1 is a left view of the second sieve net in the present application;
[0016] Figure 4 is a front view of the second outer sieve plate in the present application;
[0017] Figure 5 is a front view of the second central sieve plate in the present application;
[0018] Figure 6 is a left view of the third sieve net in the present application; Figure 1
[0019] Figure 7 is a structural schematic view of the third sieve net in the present application;
[0020] In the drawings:
[0021] 1, first sieve net, 11, first outer sieve plate, 12, first central sieve plate, 2, second sieve net, 21, second outer sieve plate, 22, second central sieve plate, 23, second sieve hole, 24, bolt connection hole, 3, third sieve net, 31, central box, 32, discharge pipe, 4, ball mill drum, 5, drum end plate. DETAILED DESCRIPTION
[0022] To clearly illustrate the technical features of the present scheme, the following through a specific implementation, the present scheme is described.
[0023] As shown in Figures 1 to 7 The utility model discloses a kind of ultrafine composite material mill tail high-efficiency discharging devices, including first screen 1, second screen 2 and third screen 3 that are sequentially arranged in ball mill drum 4, first screen 1 and the feed end of ball mill drum 4 constitute first crushing chamber, first screen 1 and second screen 2 constitute second crushing chamber between, second screen 2 and third screen 3 constitute third crushing chamber between.
[0024] As shown in Figure 2 First screen 1 includes first center screen plate 12 and the circumferentially arranged multiple first outer screen plate 11, first center screen plate 12 is circular plate, first outer screen plate 11 is trapezoidal plate, and the circumferentially arranged multiple first outer screen plate 11 forms annular structure, to constitute first screening surface together with first center screen plate 12. Framework is welded in ball mill drum 4, and first center screen plate 12 and first outer screen plate 11 are fixedly connected on framework.
[0025] First center screen plate 12 and first outer screen plate 11 are all opened with first screen hole. The first screen hole is long circle hole, and the first screen hole in the embodiment is 2.5x25mm.
[0026] As shown in Figure 3 Second screen 2 includes second center screen plate 22 and the circumferentially arranged multiple second outer screen plate 21, and second center screen plate 22 and second outer screen plate 21 are all opened with second screen hole 23, and the second screen hole 23 is long circle hole, and the second screen hole 23 in the embodiment is 2x25mm. The second outer screen plate 21 is trapezoidal, and the multiple second outer screen plate 21 constitutes annular structure, to constitute second screening surface together with second center screen plate 22. Framework is welded in ball mill drum 4, and second center screen plate 22 and second outer screen plate 21 are fixedly connected on framework, as shown in Figure 4 Multiple bolt connecting holes 24 are opened on second outer screen plate 21, to realize bolt connection with framework.
[0027] Third screen 3 includes center box body 31 and the multiple discharge pipes 32 that are communicated along circumference at the outer circle of center box body 31, and center box body 31 is fixedly connected at the center position inside drum end plate 5 of the end part of ball mill drum 4, and the section of discharge pipe 32 is rectangular and is attached inside drum end plate 5 of the end part of ball mill drum 4.
[0028] The discharge pipe 32 is arc-shaped, one end is welded with center box body 31, and the other end penetrates the outside of ball mill drum 4, to realize the discharge of finished material.
[0029] The cross-sectional area of the discharge pipe 32 gradually decreases in the direction away from the central box 31. The discharge pipe 32 is provided with a third screen hole on the side, and the third screen hole is 1.5x25mm, so that the widths of the first screen hole, the second screen hole 23 and the third screen hole gradually decrease.
[0030] The use method of the utility model: material and steel ball in the ball mill drum 4, the ball mill drum 4 rotates, and the material is crushed by the steel ball, and the material of a certain fineness first passes through the first screen 1, then grinds again, then passes through the second screen 2, and finally enters the discharge pipe 32 through the third screen 3 on the side of the discharge pipe 32, and finally the required material is discharged through the outer end of the discharge pipe 32.
[0031] Of course, the above description is not limited to the above examples, and the technical features not described in the utility model can be realized by or using the prior art, which will not be repeated here; the above embodiments and drawings are only used to illustrate the technical scheme of the utility model and are not limited to the utility model, and the preferred embodiments of the utility model are described in detail, and those skilled in the art should understand that the changes, modifications, additions or replacements made by those skilled in the art within the essential scope of the utility model do not deviate from the purpose of the utility model, and should also belong to the protection scope of the claims of the utility model.
Claims
1. A high-efficiency discharge device at the mill tail of an ultrafine composite material mill, characterized in that: The first screen (1), the second screen (2) and the third screen (3) are sequentially arranged in the ball mill drum (4), the first screen (1) is provided with the first screen hole, the second screen (2) comprises a second center screen plate (22) and a plurality of second outer screen plates (21) arranged in a circumferential direction, the second center screen plate (22) and the second outer screen plate (21) are provided with the second screen hole (23), the third screen (3) comprises a center box (31) and a plurality of discharge pipes (32) communicated along the circumferential direction outside the center box (31), the discharge pipe (32) is provided with the third screen hole on the side surface, and the widths of the first screen hole, the second screen hole (23) and the third screen hole gradually decrease.
2. The high-efficiency discharge device for the mill tail of a superfine composite mill according to claim 1, characterized in that: The first screen (1) comprises a first center screen plate (12) and a plurality of first outer screen plates (11) arranged in a circumferential direction, and the first center screen plate (12) and the first outer screen plate (11) are provided with the first screen hole.
3. The high-efficiency discharge device for the mill tail of a superfine composite mill according to claim 2, characterized in that: The first screen hole and the second screen hole (23) are both long circular holes.
4. The high-efficiency discharge device for the mill tail of a superfine compound mill according to claim 1, characterized in that: The cross section of the discharge pipe (32) is rectangular and is attached to the inner side of the drum end plate (5) at the end of the ball mill drum (4).
5. The high-efficiency discharge device for the mill tail of a superfine compound mill according to claim 1, characterized in that: The discharge pipe (32) is arc-shaped.
6. The high-efficiency discharge device for the mill tail of a superfine compound mill according to claim 1, characterized in that: The cross section area of the discharge pipe (32) gradually decreases in the direction away from the center box (31).
7. The high-efficiency discharge device for the mill tail of a superfine compound mill according to claim 1, characterized in that: The second outer screen plate (21) is trapezoidal, and a plurality of second outer screen plates (21) form a ring structure.