CN103233907A - Abrasion-resistant slurry pump - Google Patents
Abrasion-resistant slurry pump Download PDFInfo
- Publication number
- CN103233907A CN103233907A CN2013101482990A CN201310148299A CN103233907A CN 103233907 A CN103233907 A CN 103233907A CN 2013101482990 A CN2013101482990 A CN 2013101482990A CN 201310148299 A CN201310148299 A CN 201310148299A CN 103233907 A CN103233907 A CN 103233907A
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- pump
- impeller
- main shaft
- suction chamber
- composite abrasion
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Abstract
A centrifugal pump slurry pump for conveying abrasive mediums comprises a bearing portion assembly, a main shaft, an impeller, a pump casing, a pump cover and a suction chamber, wherein the main shaft penetrates through the suction chamber from the bearing portion assembly to be connected with the impeller; one end of the suction chamber, which is close to the bearing portion assembly, is provided with a shaft seal device, and the other end of the suction chamber is provided with the pump cover, the impeller and the pump casing; the pump casing and the impeller are made of metal materials and composite abrasion-resistant materials, and the pump cover is made of the composite abrasion-resistant materials or of both the composite abrasion-resistant materials and the metal materials; the portion of the pump casing, which is made of the metal materials, is provided with a hole phi 1 which is of the same axis with the main shaft, the pump cover is provided with a shaft phi 1' which is matched with the hole phi 1, the portion of the pump casing, which is made of the composite abrasion-resistant materials, is provided with a hole phi 2 which is of the same axis with the main shaft, the portion of the pump cover, which is made of the composite abrasion-resistant materials, is provided with a shaft phi 2' which is matched with the hole phi 2, and the hole phi 1 is larger than the hole phi 2; and the impeller is provided with a metal framework which is connected with the main shaft, and the suction port of the impeller faces the bearing portion assembly.
Description
Affiliated technical field
The present invention relates to a kind of centrifugal pump, the centrifugal pump of abrasion medium is arranged in particular for conveying.
Background technique
When conveying has the abrasion medium, often adopt horizontal slag stock pump.Following two the tangible deficiencies of existing horizontal slag stock pump ubiquity:
One: the shaft sealing poor reliability, because the shaft sealing of most of horizontal slag stock pump is arranged on the back shroud side of impeller, shaft sealer is in the zone of high pressure during work, packing seal is leaked under pressure easily.For this reason, some slag stock pumps have to arrange sub-propeller sealing or mechanical seal, but this increases these two kinds of seal arrangements and not only increase manufacture cost, and the sub-propeller seal arrangement is wanted consumed energy simultaneously, causes the decrease in efficiency of pump; The mechanical seal that involves great expense is had relatively high expectations to rinse water, easily causes damaging because of quality problem.
Its two: wear resistance usually can not meet the demands, and the slag stock pump of prior art still generally adopts abrasion resistance alloy or rubber to make the flow passage part of slag stock pump, but the flow passage part life-span of these high-abrasive material manufacturings usually can not be satisfied usage requirement.
Application number 200310111424.7 discloses a kind of slag stock pump.In this scheme, shaft sealer is arranged on the front shroud side of impeller, and adopts the sub-propeller sealing, is in low pressure or passive state when making shaft sealer work, and reliability is largely increased.But find in practice, adopt this structure after because the jib-length of main shaft obviously increases, when impeller occurs when uneven because of wearing and tearing, vibration force that its rotation produces can make the life-span of main shaft and bearing obviously descend.
Summary of the invention
For solving the deficiencies in the prior art, the invention provides a kind of wear-resisting slag stock pump, to address the above problem.
The technical solution adopted for the present invention to solve the technical problems is: the slag stock pump comprises bearing parts, main shaft, impeller, pump case, pump cover, suction chamber, and main shaft passes suction chamber from the bearing parts and connects impeller; Suction chamber is provided with shaft sealer near bearing parts end, and the other end is provided with pump cover, impeller and pump case; Pump case, impeller are by metallic material and composite abrasion resistance material manufacturing, and pump cover is by the composite abrasion resistance material manufacturing or by composite abrasion resistance material and two kinds of material manufacturings of metal; The Main Ingredients and Appearance of described composite abrasion resistance material is the abrasive grain of 40%～95% weight and the resinoid bond of 5%～60% weight; The pump case metallic material is provided with the hole φ 1 with the main shaft coaxial line, pump cover is provided with the axle φ 1 ' that matches with φ 1, the composite abrasion resistance material of pump case is provided with the hole φ 2 with the main shaft coaxial line, and the composite abrasion resistance material of pump cover is provided with the axle φ 2 ' that matches with φ 2, φ 1＞φ 2; Impeller is provided with the metal frame that is connected with main shaft, and suction eye is towards the bearing parts.
The invention has the beneficial effects as follows: because shaft sealer is arranged on suction chamber, the pressure of sealing place is lower during work, and in some cases or even negative pressure, therefore only packing seal need be set just can obtain the better seal effect, there is no need to arrange sub-propeller again; If seal request is higher, then mechanical seal can be set, the lower working pressure of shaft sealing place at this moment also is conducive to the life-span of prolonged mechanical sealing; Main Ingredients and Appearance is the impeller that composite abrasion resistance material is made, quality is light than the weight of antifriction metal (AFM) impeller, even if impeller imbalance occurs because of wearing and tearing, vibration force that its rotation produces also is significantly smaller than the antifriction metal (AFM) impeller, is conducive to improve the force-bearing situation of main shaft and bearing; The flow-passing surface of flow passage part arranges composite abrasion resistance material, can significantly improve the life-span of flow passage part; The hole that cooperatively interacts that arranges on pump case and the pump cover and axle owing to adopt the metallic material manufacturing, can improve assembly precision and join strength.
Description of drawings
Constitute specification of the present invention a part, be used for further understanding accompanying drawing of the present invention and show the preferred embodiments of the present invention, and be used for illustrating the principle of the invention with specification, illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not constitute improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the plan view of the embodiment of the invention 1.
Fig. 2 is the sectional view of the embodiment of the invention 1.
Fig. 3 is the sectional view of the embodiment of the invention 2.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
In Fig. 1, Fig. 2, embodiment 1 shown in Figure 3, embodiment 2, the present invention includes: main shaft 1, bearing parts 2, suction chamber 3, pump case 4, pump cover 5, impeller 6, packing seal is adopted in shaft sealing, filler 7 is arranged between impeller 6 and the bearing parts 2, the flow-passing surface of pump case 4 is composite abrasion resistance material, its outer installment has the pump case skeleton 41 of metal, to improve the intensity of pump case.Equally, the flow-passing surface of pump cover 5 is composite abrasion resistance material.
In embodiment 1 and embodiment 2, the Main Ingredients and Appearance of composite abrasion resistance material is: 80% weight corundum, 20% phenolic resin.
In accompanying drawing 2 and accompanying drawing 3, that arrange and hole main shaft 1 coaxial line on the φ 1 expression pump case 4, that arrange and axle main shaft 1 coaxial line, the cooperation of the φ 1/ φ 1 ' above-mentioned hole of expression and axle on the φ 1 ' expression pump cover 5; The hole of another that arranges on the φ 2 expression pump cases 4 and main shaft coaxial line, φ 2 ' is illustrated in the axle of another and main shaft 1 coaxial line that arrange on the pump cover 5, and φ 2/ φ 2 ' represents the cooperation between the two.
In the embodiment 1 shown in the accompanying drawing 2, pump cover 5 adopts composite abrasion resistance material and two kinds of material manufacturings of metal, is proof strength, can adopt adhesive, and the pump cover skeleton 51 of pump cover 5 and metal material is composed one.
In the embodiment 2 shown in the accompanying drawing 3, pump cover 5 adopts the composite abrasion resistance material manufacturing, for guaranteeing the mechanical strength of pump cover 5, can adopt adhesive, and pump cover 5 and suction chamber 3 are composed one.
In the embodiment 2 shown in the accompanying drawing 3, suction chamber 3 adopts the metal manufacturing, is provided with elastometric lining or composite abrasion resistance material liner 31 on its overcurrent internal surface, to improve its wear resistance.
In the embodiment shown in accompanying drawing 2, the accompanying drawing 3, main shaft 1 is provided with anti-wear sleeve 8 and prevents that main shaft 1 is worn in the position of suction chamber 3.
In the embodiment 2 shown in the accompanying drawing 3; inner chamber at suction chamber 3 is provided with fixed sheath 9; not only can better protection main shaft 1 and go up the anti-wear sleeve 8 that arranges, be conducive to simultaneously to prevent be transferred medium contact filler 7 in the suction chamber 3, thereby prolong the life-span of filler 7.Obviously, under the technology appropriate condition, this fixed sheath 9 can manufacture one with suction chamber 3.
In the embodiment shown in accompanying drawing 2, the accompanying drawing 3, the metal frame 61 of impeller 6 is provided with the screw thread that is connected with main shaft 1.
Claims (7)
1. a slag stock pump comprises bearing parts, main shaft, impeller, pump case, pump cover, suction chamber, it is characterized in that: main shaft passes suction chamber from the bearing parts and connects impeller; Suction chamber is provided with shaft sealer near bearing parts end, and the other end is provided with pump cover, impeller and pump case; Pump case, impeller are by metallic material and composite abrasion resistance material manufacturing, and pump cover is by the composite abrasion resistance material manufacturing or by composite abrasion resistance material and two kinds of material manufacturings of metal; The Main Ingredients and Appearance of described composite abrasion resistance material is the abrasive grain of 40%～95% weight and the resinoid bond of 5%～60% weight; The pump case metallic material is provided with the hole φ 1 with the main shaft coaxial line, pump cover is provided with the axle φ 1 ' that matches with φ 1, the composite abrasion resistance material of pump case is provided with the hole φ 2 with the main shaft coaxial line, and the composite abrasion resistance material of pump cover is provided with the axle φ 2 ' that matches with φ 2, φ 1＞φ 2; Impeller is provided with the metal frame that is connected with main shaft, and suction eye is towards the bearing parts.
2. a kind of slag stock pump according to claim 1, it is characterized in that: pump cover and suction chamber are composed one by adhesive.
3. a kind of slag stock pump according to claim 1, it is characterized in that: described shaft sealer is packing seal or mechanical seal.
4. a kind of slag stock pump according to claim 1, it is characterized in that: main shaft suction chamber position is provided with anti-wear sleeve.
5. a kind of slag stock pump according to claim 1, it is characterized in that: the metal frame of impeller is provided with screw thread.
6. a kind of slag stock pump according to claim 1, it is characterized in that: the suction chamber internal surface is provided with elastometric lining or composite abrasion resistance material liner.
7. a kind of slag stock pump according to claim 1, it is characterized in that: the inner chamber at suction chamber is provided with fixed sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101482990A CN103233907A (en) | 2013-04-15 | 2013-04-15 | Abrasion-resistant slurry pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101482990A CN103233907A (en) | 2013-04-15 | 2013-04-15 | Abrasion-resistant slurry pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103233907A true CN103233907A (en) | 2013-08-07 |
Family
ID=48881965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101482990A Pending CN103233907A (en) | 2013-04-15 | 2013-04-15 | Abrasion-resistant slurry pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103233907A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869398A (en) * | 2018-07-24 | 2018-11-23 | 广州市拓道新材料科技有限公司 | A kind of wear-resisting pump housing and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2077916U (en) * | 1990-09-09 | 1991-05-29 | 何兴飞 | Acid and alkali pumps sealed by negative-pressure |
| CN2168107Y (en) * | 1993-07-08 | 1994-06-08 | 金山耐酸泵有限公司 | Vacuum sealed centrifugal pump |
| CA2803993A1 (en) * | 2010-06-30 | 2012-01-05 | Schlumberger Canada Limited | Durable pumps for abrasives |
| CN202108775U (en) * | 2011-06-02 | 2012-01-11 | 李国中 | Slurry pump |
| CN102444611A (en) * | 2010-10-15 | 2012-05-09 | 长沙理工大学 | Centrifugal pump |
| CN102588321A (en) * | 2012-02-23 | 2012-07-18 | 肖琼 | Wear-resisting pump body and pump cover |
-
2013
- 2013-04-15 CN CN2013101482990A patent/CN103233907A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2077916U (en) * | 1990-09-09 | 1991-05-29 | 何兴飞 | Acid and alkali pumps sealed by negative-pressure |
| CN2168107Y (en) * | 1993-07-08 | 1994-06-08 | 金山耐酸泵有限公司 | Vacuum sealed centrifugal pump |
| CA2803993A1 (en) * | 2010-06-30 | 2012-01-05 | Schlumberger Canada Limited | Durable pumps for abrasives |
| CN102444611A (en) * | 2010-10-15 | 2012-05-09 | 长沙理工大学 | Centrifugal pump |
| CN202108775U (en) * | 2011-06-02 | 2012-01-11 | 李国中 | Slurry pump |
| CN102588321A (en) * | 2012-02-23 | 2012-07-18 | 肖琼 | Wear-resisting pump body and pump cover |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869398A (en) * | 2018-07-24 | 2018-11-23 | 广州市拓道新材料科技有限公司 | A kind of wear-resisting pump housing and preparation method thereof |
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Application publication date: 20130807 |