Wear-resistant ceramic static blade

Abstract

The utility model relates to the technical field of cement production, in particular to a wear-resistant ceramic static blade which comprises a lower ring, a plurality of connecting columns are connected to the inner side of the top of the lower ring, the tops of the connecting columns are jointly connected with an upper ring, a plurality of inserting grooves are formed in the top of the lower ring, and the inserting grooves are connected with the lower ring. A plurality of cross-shaped placing grooves are formed in the top of the upper ring, the bottoms of the cross-shaped placing grooves communicate with through grooves, the bottoms of the through grooves penetrate through the upper ring, blade base bodies are inserted into the bottoms of the inner walls of the inserting grooves, the tops of the blade base bodies penetrate through the inserting grooves and extend into the through grooves, and cross-shaped placing blocks are connected to the tops of the blade base bodies; and the cross-shaped placing block is placed in the cross-shaped placing groove. The blade base body is formed by combining the aluminum oxide ceramic base body, the silicon nitride ceramic layer, the silicon carbide ceramic layer and the zirconium oxide ceramic layer, so that the blade base body has high abrasion resistance and is not prone to being abraded in the using process, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cement production, in particular to a wear-resistant ceramic static blade. Background Art

[0002] Cement is a powdery, hydraulic inorganic gelling material, which becomes a slurry after being mixed with water. It can harden in the air or in water, and can firmly glue sand, stone and other materials together. Powder classifiers are used in the cement production process, and static blades are an important component of the powder classifier.

[0003] The utility model patent with patent application publication number 201920841901.1 discloses a static blade mechanism of a powder classifier, the static blade mechanism includes a basic blade connected to the powder classifier rotor; the basic blade is provided with a detachable sub-assembly blade at one end away from the powder classifier rotor. The static blade disclosed in the utility model is divided into a basic blade and a sub-assembly blade, which are connected in a detachable manner. When the sub-assembly blade is worn, only the sub-assembly blade needs to be replaced, which effectively reduces the labor intensity of powder classifier blade maintenance and greatly improves the powder classifier maintenance efficiency.

[0004] However, the above device still has some disadvantages in actual use. The most obvious one is that the wear resistance of the sub-packaging blade itself is poor. After the wear-resistant plate on its surface is worn during use, the sub-packaging blade will be quickly worn out in a short time, reducing the service life of the sub-packaging blade. Therefore, in order to solve this problem, we propose a wear-resistant ceramic static blade. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a wear-resistant ceramic static blade.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A wear-resistant ceramic static blade comprises a lower ring, wherein the inner side of the top of the lower ring is connected to a plurality of connecting columns, the tops of the plurality of connecting columns are commonly connected to an upper ring, the top of the lower ring is provided with a plurality of slots, the top of the upper ring is provided with a plurality of cross placement slots, the bottoms of the cross placement slots are connected to through slots, the bottoms of the through slots penetrate the upper ring, the bottoms of the inner walls of the slots are plugged with a blade base, the top of the blade base penetrates the slots and extends to the interior of the through slots.

[0008] Preferably, a cross placement block is connected to the top of the blade base, the cross placement block is placed inside the cross placement groove, and the top of the cross placement block is lower than the top of the upper ring.

[0009] Preferably, positioning screw holes are provided on both sides of the bottom of the inner wall of the cross placement groove, and positioning bolts are provided on both sides of the top of the cross placement block, and the bottom of the positioning bolts passes through the cross placement block and extends to the inside of the positioning screw holes.

[0010] Preferably, the blade substrate comprises an alumina ceramic substrate, and the exterior of the alumina ceramic substrate is wrapped with a silicon nitride ceramic layer.

[0011] Preferably, the silicon nitride ceramic layer is wrapped outside with a silicon carbide ceramic layer, and the silicon carbide ceramic layer is wrapped outside with a zirconium oxide ceramic layer.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model has a blade substrate composed of an alumina ceramic substrate, a silicon nitride ceramic layer, a silicon carbide ceramic layer and a zirconium oxide ceramic layer, so that the blade substrate has strong wear resistance, is not easily worn during use, and has a prolonged service life.

[0014] 2. The utility model uses the lower ring, the upper ring, the slot, the through slot, the cross placement slot, the positioning screw hole, the cross placement block and the positioning bolts in coordination. When the positioning bolts are removed, the blade base can be pulled out from between the lower ring and the upper ring, which is conducive to replacing the damaged blade base. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the axonometric drawing of the structure of the utility model;

[0016] Figure 2 This is a diagram showing the structure coordination of the lower ring, the connecting column and the upper ring of the utility model;

[0017] Figure 3 For this utility model Figure 2 A magnified view of middle;

[0018] Figure 4 This is a diagram showing the matching structure of the blade base and the cross placement block of the utility model;

[0019] Figure 5 This is a cross-sectional view of the blade base structure of the utility model.

[0020] In the figure: 1. lower ring; 2. blade substrate; 21. alumina ceramic substrate; 22. silicon nitride ceramic layer; 23. silicon carbide ceramic layer; 24. zirconium oxide ceramic layer; 3. upper ring; 4. slot; 5. connecting column; 6. through slot; 7. cross placement slot; 8. positioning screw hole; 9. cross placement block; 10. positioning bolt. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] See also Figure 1-Figure 5 A wear-resistant ceramic static blade comprises a lower ring 1, a plurality of connecting columns 5 are connected to the inner side of the top of the lower ring 1, the tops of the plurality of connecting columns 5 are commonly connected to an upper ring 3, a plurality of slots 4 are opened at the top of the lower ring 1, a plurality of cross placement grooves 7 are opened at the top of the upper ring 3, a through groove 6 is connected to the bottom of the cross placement groove 7, the bottom of the through groove 6 passes through the upper ring 3, a blade base 2 is inserted at the bottom of the inner wall of the slot 4, and the top of the blade base 2 passes through the slot 4 and extends to the inside of the through groove 6.

[0023] As a technical optimization solution of the utility model, a cross placement block 9 is connected to the top of the blade base 2, and the cross placement block 9 is placed inside the cross placement groove 7. The top of the cross placement block 9 is lower than the top of the upper ring 3; the material of the cross placement block 9 is the same as that of the blade base 2.

[0024] As a technical optimization solution of the utility model, positioning screw holes 8 are opened on both sides of the bottom of the inner wall of the cross placement groove 7, and positioning bolts 10 are arranged on both sides of the top of the cross placement block 9. The bottom of the positioning bolt 10 passes through the cross placement block 9 and extends to the interior of the positioning screw hole 8; through the cooperation of the positioning bolt 10 and the positioning screw hole 8, the cross placement block 9 is conveniently positioned, thereby improving the stability of the blade base 2.

[0025] As a technical optimization solution of the present utility model, the blade substrate 2 includes an alumina ceramic substrate 21 , and the outside of the alumina ceramic substrate 21 is wrapped with a silicon nitride ceramic layer 22 .

[0026] As a technical optimization solution of the utility model, the silicon nitride ceramic layer 22 is wrapped with a silicon carbide ceramic layer 23 on the outside, and the silicon carbide ceramic layer 23 is wrapped with a zirconium oxide ceramic layer 24 on the outside.

[0027] When the utility model is in use, the blade base 2 is composed of an alumina ceramic base 21, a silicon nitride ceramic layer 22, a silicon carbide ceramic layer 23 and a zirconium oxide ceramic layer 24, so that it has strong wear resistance and is not easily worn during use, thereby extending the service life of the blade base 2. When the blade base 2 needs to be removed and replaced, the positioning bolt 10 is removed with a wrench, the blade base 2 is moved upward to be removed from between the upper ring 3 and the lower ring 1, and a new blade base 2 is replaced and the positioning bolt 10 is reset.

[0028] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A wear-resistant ceramic static blade, comprising a lower ring (1), characterized in that: The inner side of the top of the lower ring (1) is connected to a plurality of connecting columns (5), and the tops of the plurality of connecting columns (5) are commonly connected to the upper ring (3). The top of the lower ring (1) is provided with a plurality of slots (4), and the top of the upper ring (3) is provided with a plurality of cross placement grooves (7). The bottom of the cross placement groove (7) is connected to a through groove (6), and the bottom of the through groove (6) passes through the upper ring (3). The bottom of the inner wall of the slot (4) is plugged with a blade base (2), and the top of the blade base (2) passes through the slot (4) and extends to the inside of the through groove (6).

2. The wear-resistant ceramic static blade according to claim 1, characterized in that: The top of the blade base (2) is connected with a cross placement block (9), the cross placement block (9) is placed inside the cross placement groove (7), and the top of the cross placement block (9) is lower than the top of the upper ring (3).

3. The wear-resistant ceramic static blade according to claim 2, characterized in that: Positioning screw holes (8) are provided on both sides of the bottom of the inner wall of the cross placement groove (7), and positioning bolts (10) are provided on both sides of the top of the cross placement block (9), and the bottom of the positioning bolt (10) passes through the cross placement block (9) and extends to the inside of the positioning screw hole (8).

4. The wear-resistant ceramic static blade according to claim 1, characterized in that: The blade substrate (2) comprises an alumina ceramic substrate (21), and the exterior of the alumina ceramic substrate (21) is wrapped with a silicon nitride ceramic layer (22).

5. The wear-resistant ceramic static blade according to claim 4, characterized in that: The silicon nitride ceramic layer (22) is wrapped outside with a silicon carbide ceramic layer (23), and the silicon carbide ceramic layer (23) is wrapped outside with a zirconium oxide ceramic layer (24).

Images