CN215566819U - Ceramic and rubber composite front guard plate of slurry pump - Google Patents
Ceramic and rubber composite front guard plate of slurry pump Download PDFInfo
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- CN215566819U CN215566819U CN202120978457.5U CN202120978457U CN215566819U CN 215566819 U CN215566819 U CN 215566819U CN 202120978457 U CN202120978457 U CN 202120978457U CN 215566819 U CN215566819 U CN 215566819U
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Abstract
The utility model discloses a ceramic and rubber composite slurry pump front guard board, which comprises a 2Cr13 hard alloy layer (3), a 2Cr13 hard alloy skeleton (4), a silicon carbide ceramic layer (2) and a rubber layer (1), wherein the 2Cr13 hard alloy skeleton (4) is fixedly arranged on the 2Cr13 hard alloy layer (3) through screws, the silicon carbide ceramic is sintered on the surface of the 2Cr13 hard alloy layer (3) by adopting a sintering process to form the silicon carbide ceramic layer (2), and the rubber layer (1) is fixedly arranged on the surface of the silicon carbide ceramic layer (2). The front guard board takes 2Cr13 hard alloy as a base material, and silicon carbide ceramic and rubber are compounded on the surface of the base material, so that the corrosion resistance and the impact resistance of the front guard board can be improved.
Description
Technical Field
The utility model relates to the technical field of slurry pumps, in particular to a ceramic and rubber composite front protecting plate of a slurry pump.
Background
The slurry pump is widely applied to the industries of mines, power plants, coal washing plants, metallurgy and the like, is also called as a medium pump and is mainly used for conveying slurry containing solid particles. During the operation of the slurry pump, under the action of centrifugal force of the rotating impeller, slurry is thrown from the center of the impeller to the outer edge of the impeller and enters a volute cavity consisting of the volute, the front guard plate and the rear guard plate, the slurry decelerates along with the gradual expansion of the volute cavity, part of kinetic energy is converted into static pressure energy, and finally the static pressure energy flows into a drainage pipeline at higher pressure.
In the operation process of the slurry pump, the slurry pump is influenced by slurry property parameters such as solid-liquid mixture rheological property, solid particle size, particle shape and the like, and the most severely worn part in the overflowing part of the slurry pump is an impeller, and then a front protection plate, a rear protection plate or a sheath and the like are arranged. In the prior art, most of the front guard plate of the slurry pump is made of hard alloy, and part of the front guard plate is made of silicon nitride combined with silicon carbide or resin combined with silicon carbide, but the wear rate of the front guard plate of the slurry pump is accelerated and the service life of the whole slurry pump is seriously shortened due to strong corrosivity of part of slurry; in addition, when silicon nitride-bonded silicon carbide or resin-bonded silicon carbide is selected as the material of the front fender, the service life of the front fender is directly limited due to poor impact resistance.
Aiming at the problems in the related art, no effective solution is provided at present, and a front protecting plate of a slurry pump with corrosion resistance and impact resistance is urgently needed.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned drawbacks, the present invention aims to provide a ceramic and rubber composite slurry pump front guard plate, in which 2Cr13 cemented carbide is used as a base material, and silicon carbide ceramic and rubber are composited on the surface of the base material, so as to improve the corrosion resistance and impact resistance of the slurry pump front guard plate.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: a ceramic and rubber composite slurry pump front guard board comprises a 2Cr13 hard alloy layer, a 2Cr13 hard alloy skeleton, a silicon carbide ceramic layer and a rubber layer, wherein the 2Cr13 hard alloy skeleton is fixedly arranged on the 2Cr13 hard alloy layer through screws, the silicon carbide ceramic is sintered on the surface of the 2Cr13 hard alloy layer by adopting a sintering process to form the silicon carbide ceramic layer, and the rubber layer is fixedly arranged on the surface of the silicon carbide ceramic layer.
The 2Cr13 hard alloy skeleton be vertical bar form, two screw holes are seted up to the bottom, the quantity of 2Cr13 hard alloy skeleton is eight, evenly distributed in the surface of 2Cr13 hard alloy layer.
The silicon carbide ceramic layer is fan-shaped, eight in number, is arranged between every two 2Cr13 hard alloy frameworks in a sintering mode, and is connected with the 2Cr13 hard alloy layer.
The rubber layer is fan-shaped, is the same as the silicon carbide ceramic layer in shape, and the number of the rubber layers is eight, and the rubber layers are fixedly arranged on the surface of the silicon carbide ceramic layer.
The utility model has the following beneficial effects: according to the ceramic and rubber composite slurry pump front guard plate, 2Cr13 hard alloy is used as a base material to ensure that the front guard plate has enough strength, firstly, a 2Cr13 hard alloy framework is fixed on the surface of a 2Cr13 hard alloy layer in a screw connection mode, and the surface of a 2Cr13 hard alloy layer is uniformly divided into eight fan-shaped areas; then, the silicon carbide ceramic layer and the rubber layer are sequentially and fixedly arranged in a fan-shaped area formed by the 2Cr13 hard alloy framework, the 2Cr13 hard alloy framework is used for supporting the silicon carbide ceramic layer and the rubber layer to achieve the purpose of preventing the silicon carbide ceramic layer and the rubber layer from falling off, and meanwhile, the rubber layer fixed on the surface of the silicon carbide ceramic layer can prevent corrosive slurry from corroding the 2Cr13 hard alloy layer and improve the shock resistance of the silicon carbide ceramic layer.
Drawings
FIG. 1 is a cross-sectional view of a ceramic and rubber composite slurry pump front guard of the present invention;
FIG. 2 is a left side view of a ceramic and rubber composite slurry pump front guard of the present invention;
FIG. 3 is a right side view of a ceramic and rubber composite slurry pump front shield of the present invention;
labeled as: 1: a rubber layer; 2: a silicon carbide ceramic layer; 3: 2Cr13 hard alloy layer; 4: 2Cr13 hard alloy skeleton; 5: a threaded bore.
Detailed Description
An embodiment of the utility model is further described below with reference to figures 1, 2 and 3:
the ceramic and rubber composite slurry pump front guard board comprises a 2Cr13 hard alloy layer 3, a 2Cr13 hard alloy framework 4, a silicon carbide ceramic layer 2 and a rubber layer 1, wherein the 2Cr13 hard alloy framework 4 is fixedly installed on the 2Cr13 hard alloy layer 3 through screws, the silicon carbide ceramic is sintered on the surface of the 2Cr13 hard alloy layer 3 by adopting a sintering process to form the silicon carbide ceramic layer 2, and the rubber layer 1 is installed and fixed on the surface of the silicon carbide ceramic layer 2.
The 2Cr13 hard alloy skeleton 4 is vertical bar-shaped, the bottom of the skeleton is provided with two threaded holes 5, the number of the 2Cr13 hard alloy skeleton 4 is eight, and the eight hard alloy skeleton are uniformly distributed on the surface of the 2Cr13 hard alloy layer 3.
The silicon carbide ceramic layer 2 is fan-shaped, eight in number, is arranged between every two 2Cr13 hard alloy frameworks 4 in a sintering mode, and is connected with the 2Cr13 hard alloy layer 3.
The rubber layer 1 is fan-shaped, has the same shape as the silicon carbide ceramic layer 2, is eight in number, and is fixedly arranged on the surface of the silicon carbide ceramic layer 2.
The utility model has the following beneficial effects: according to the ceramic and rubber composite front guard plate of the slurry pump, 2Cr13 hard alloy is used as a base material to ensure that the front guard plate has enough strength, firstly, a 2Cr13 hard alloy framework 4 is fixed on the surface of a 2Cr13 hard alloy layer 3 in a screw connection mode, and the surface of the 2Cr13 hard alloy layer 3 is uniformly divided into eight fan-shaped areas; then, the silicon carbide ceramic layer 2 and the rubber layer 1 are sequentially and fixedly arranged in a fan-shaped area formed by the 2Cr13 hard alloy framework 4, the 2Cr13 hard alloy framework 4 is used for supporting the silicon carbide ceramic layer 2 and the rubber layer 1 and plays a role in preventing the silicon carbide ceramic layer 2 and the rubber layer 1 from falling off, and meanwhile, the rubber layer 1 fixed on the surface of the silicon carbide ceramic layer 2 can prevent corrosive slurry from corroding the 2Cr13 hard alloy layer 3 and improve the shock resistance of the silicon carbide ceramic layer 2.
Claims (4)
1. The utility model provides a ceramic and rubber compound's sediment thick liquid pump apron board, includes 2Cr13 carbide layer (3), 2Cr13 carbide skeleton (4), carborundum ceramic layer (2) and rubber layer (1), its characterized in that: the 2Cr13 hard alloy skeleton (4) is fixedly arranged on the 2Cr13 hard alloy layer (3) through screws, the silicon carbide ceramic is sintered on the surface of the 2Cr13 hard alloy layer (3) through a sintering process to form a silicon carbide ceramic layer (2), and the rubber layer (1) is fixedly arranged on the surface of the silicon carbide ceramic layer (2).
2. The ceramic and rubber composite slurry pump front guard plate according to claim 1, characterized in that: the 2Cr13 hard alloy skeleton (4) is vertical bar-shaped, two threaded holes (5) are opened at the bottom, the number of the 2Cr13 hard alloy skeleton (4) is eight, and the hard alloy skeleton is uniformly distributed on the surface of the 2Cr13 hard alloy layer (3).
3. The ceramic and rubber composite slurry pump front guard plate according to claim 1, characterized in that: the silicon carbide ceramic layers (2) are fan-shaped, eight in number, are arranged between every two 2Cr13 hard alloy frameworks (4) in a sintering mode, and are connected with the 2Cr13 hard alloy layer (3).
4. The ceramic and rubber composite slurry pump front guard plate according to claim 1, characterized in that: the rubber layer (1) is in a fan shape, has the same shape as the silicon carbide ceramic layer (2), is eight in number, and is fixedly arranged on the surface of the silicon carbide ceramic layer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120978457.5U CN215566819U (en) | 2021-05-10 | 2021-05-10 | Ceramic and rubber composite front guard plate of slurry pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120978457.5U CN215566819U (en) | 2021-05-10 | 2021-05-10 | Ceramic and rubber composite front guard plate of slurry pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215566819U true CN215566819U (en) | 2022-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120978457.5U Active CN215566819U (en) | 2021-05-10 | 2021-05-10 | Ceramic and rubber composite front guard plate of slurry pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215566819U (en) |
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2021
- 2021-05-10 CN CN202120978457.5U patent/CN215566819U/en active Active
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