CN105736444B - A kind of large-scale dredge pump pump case using wear resistant cast iron inserts and it is welded and fixed method - Google Patents

A kind of large-scale dredge pump pump case using wear resistant cast iron inserts and it is welded and fixed method Download PDF

Info

Publication number
CN105736444B
CN105736444B CN201610198640.7A CN201610198640A CN105736444B CN 105736444 B CN105736444 B CN 105736444B CN 201610198640 A CN201610198640 A CN 201610198640A CN 105736444 B CN105736444 B CN 105736444B
Authority
CN
China
Prior art keywords
mosaic block
shaped
block
bearing shell
fitting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201610198640.7A
Other languages
Chinese (zh)
Other versions
CN105736444A (en
Inventor
朱步生
彭永富
郑伟
戎海荣
彭陵生
杜学铭
汪选国
彭军波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan University of Technology WUT
Nanjing Changjiang Waterway Engineering Bureau
Original Assignee
Wuhan University of Technology WUT
Nanjing Changjiang Waterway Engineering Bureau
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan University of Technology WUT, Nanjing Changjiang Waterway Engineering Bureau filed Critical Wuhan University of Technology WUT
Priority to CN201610198640.7A priority Critical patent/CN105736444B/en
Publication of CN105736444A publication Critical patent/CN105736444A/en
Application granted granted Critical
Publication of CN105736444B publication Critical patent/CN105736444B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/235—Preliminary treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/02—Selection of particular materials
    • F04D29/026—Selection of particular materials especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4266—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps made of sheet metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F04D29/4286—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps inside lining, e.g. rubber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/21—Manufacture essentially without removing material by casting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/23—Manufacture essentially without removing material by permanently joining parts together
    • F05D2230/232—Manufacture essentially without removing material by permanently joining parts together by welding
    • F05D2230/233—Electron beam welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/11—Iron
    • F05D2300/111—Cast iron
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/17—Alloys
    • F05D2300/171—Steel alloys

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A kind of large-scale dredge pump pump case using wear resistant cast iron inserts of the present invention and a kind of method that method is related to large-scale dredge pump pump case and its is welded and fixed is welded and fixed, relates particularly to that a kind of wear-resisting dredge pump pump case of large size is wear-resisting to inlay being welded and fixed for combined inner lining.It is a kind of to be made of using the large-scale dredge pump pump case of wear resistant cast iron inserts bearing shell and wear-resistant liner, the inner wall of bearing shell is provided with wear-resistant liner；Wear-resistant liner includes filled layer, U-shaped mosaic block, annular mosaic block, latch segment, branching block, clamping built-in fitting, welding built-in fitting and hush panel.The U-shaped mosaic block that multiple cross sections are U-shaped is pasted in the inner wall of bearing shell, filled layer is provided between U-shaped mosaic block and bearing shell, the latch segment that cross section is U-shaped is arranged as required between U-shaped mosaic block, it is close to U-shaped mosaic block in the exit of bearing shell and is provided with annular mosaic block of the cross section for annular, is provided with the branching block for diverted liquid at the wear-resistant liner between annular mosaic block and U-shaped mosaic block.

Description

A kind of large-scale dredge pump pump case using wear resistant cast iron inserts and it is welded and fixed method
Technical field
It a kind of large-scale dredge pump pump case using wear resistant cast iron inserts of the present invention and is welded and fixed method and is related to a kind of large size Dredge pump pump case and its method being welded and fixed relate particularly to a kind of wear-resisting combined inner lining of inlaying of large size wear-resisting dredge pump pump case It is welded and fixed.
Background technology
Needed during the training of channel using the dredge pump dredged extract siltation riverbed mud, dredged channel, protect The ship of card navigation section passes through；The dredge pump using wear resistant cast iron inserts, this mud are used in existing dredge pump of dredging Pump in use there is it is easily rupturable the shortcomings that, dredging efficiency is relatively low, failure rate is higher, and the maintenance cost in later stage also compared with Height, particularly on the riverbed for having more cobblestone, since dredge pump at work easily sucks cobblestone in the pumping hole of dredge pump, Under the impact of cobblestone, wear resistant cast iron inserts easily occurs since its impact flexibility is relatively low under the impact of large scale cobble Rupture.There are two states after the rupture of wear resistant cast iron inserts, though one is it is still protected with the presence of crackle wear resistant cast iron inserts It holds completely, such operating mode influences the working life of pump case smaller；It comes off the second is wear resistant cast iron inserts generates due to rupture, When causing local defect, the abrasion of defect will be undertaken by the poor bearing shell of wearability, and such operating mode will cause pump The working life of shell drastically reduces.It is therefore necessary to design a kind of new dredge pump pump case to meet practical use demand.
Invention content
It is an object of the invention to against the above deficiency, provide a kind of large-scale dredge pump pump using wear resistant cast iron inserts Shell and it is welded and fixed method.By using a certain number of built-in fittings prefabricated in wear-resistant inserts, during assembling will a part it is pre- Slugging makes wear resistant cast iron inserts firmly connect into technology as an entirety with bearing shell on bearing shell Scheme realizes pump case impact resistance, wear-resistant, the purpose of high life, in this way when generating bruise on wear resistant cast iron inserts Phenomenon will not be fallen off, it is ensured that the integrality of wear resistant cast iron inserts ensures its working life.
It is a kind of to be made of using the large-scale dredge pump pump case of wear resistant cast iron inserts bearing shell and wear-resistant liner, outside pressure-bearing The inner wall of shell is provided with wear-resistant liner；Wear-resistant liner include filled layer, U-shaped mosaic block, annular mosaic block, latch segment, branching block, Clamping built-in fitting, welding built-in fitting and hush panel.
The U-shaped mosaic block that multiple cross sections are U-shaped, U-shaped mosaic block and bearing shell are pasted in the inner wall of bearing shell Between be provided with filled layer, be arranged as required between U-shaped mosaic block cross section be U-shaped latch segment, in bearing shell Exit be close to U-shaped mosaic block be provided with cross section for annular annular mosaic block, in annular mosaic block and U-shaped mosaic block Between branching block for diverted liquid is provided at the wear-resistant liner；
Be provided with filled layer between bearing shell and U-shaped mosaic block, annular mosaic block, in filled layer filled with cement, Mortar or concrete.
Welding built-in fitting and clamping built-in fitting are additionally provided between bearing shell and U-shaped mosaic block, annular mosaic block；Welding Built-in fitting is fixedly connected with bearing shell and U-shaped mosaic block or bearing shell and annular mosaic block by welding；Clamping is pre- Embedded part is used for will be between U-shaped mosaic block, annular mosaic block and by U-shaped mosaic block, annular mosaic block and bearing shell clamping.
Sealing is provided between U-shaped mosaic block, the end of annular mosaic block and bearing shell, envelope is provided in sealing Oralia is sealed for filling concrete, mortar or concrete in filled layer, is tamping after to be filled with hush panel.
U-shaped mosaic block, annular mosaic block, latch segment and the branching block uses cast iron materials.
The bearing shell is helical form.
The welding built-in fitting and clamping built-in fitting use 15 steel.
The bearing shell uses cast iron materials.
The hush panel uses 304 stainless steels.
A kind of large-scale dredge pump pump case using wear resistant cast iron inserts of the invention to be welded and fixed method as follows：
（1）Clamping built-in fitting, welding built-in fitting in U-shaped mosaic block or annular mosaic block are staggeredly arranged successively, are staggered 5 ~ 10mm of distance；
（2）Before the U-shaped mosaic block of sand casting or annular mosaic block, by clamping built-in fitting, welding installation of embedded parts in sand mold In corresponding position；Wear resistant cast iron is poured into a mould, clamping built-in fitting, welding built-in fitting and U-shaped mosaic block or annular are inlayed after cooled and solidified I.e. securely connection is an entirety to piece；
（3）The U-shaped mosaic block or annular mosaic block that clamping built-in fitting and welding built-in fitting will be set are assembled according to sequence To the inner wall of bearing shell, and welded；
（4）Branching block is installed to correct position, welding built-in fitting and bearing shell is welded using carbon arc welding；
（5）It installs close to the U-shaped mosaic block of branching block both sides to correct position, ensures clamping built-in fitting by branching block card Tightly, welding built-in fitting and bearing shell are welded using carbon arc soldering method；
（6）Cement injection is filled in the filled layer of mounted U-shaped mosaic block and bearing shell；
（7）After cement solidification 2.5 ~ 3 hours, each adjacent U-shaped mosaic block is installed successively by the above process, often installs 3 Cement of ~ 4 pieces of perfusions；Up to all U-shaped mosaic blocks, installation is complete；
（8）Installation locking block, and cement injection is filled；
（9）, annular mosaic block is installed to correct position, and cement injection is filled；
（10）Hush panel is welded to bearing shell corresponding position；Hush panel uses 304 stainless steels, can reliably consolidate Fixed each U-shaped mosaic block and annular mosaic block, and silt can be prevented to enter the gap between wear-resistant liner and bearing shell.
The beneficial effects of the present invention are：
The present invention is by using prefabricated welding built-in fitting and clamping built-in fitting, group on U-shaped mosaic block or annular mosaic block Part welding built-in fitting is welded on bearing shell during dress, wear resistant cast iron inserts is made firmly to be connected into bearing shell One entirety will not fall off phenomenon, it is ensured that wear resistant cast iron when generation bruise on wear resistant cast iron inserts in this way The integrality of inserts ensures its working life.It is worth with good application and popularizations.
Description of the drawings
Fig. 1 is a kind of structure diagram of large-scale dredge pump pump case using wear resistant cast iron inserts of the invention.
Fig. 2 is a kind of structure diagram of large-scale dredge pump pump case Section A-A using wear resistant cast iron inserts of the invention.
Fig. 3 is the knot of U-shaped mosaic block cross section in a kind of large-scale dredge pump pump case using wear resistant cast iron inserts of the invention Structure schematic diagram.
Fig. 4 is the structure about clamping built-in fitting in a kind of large-scale dredge pump pump case using wear resistant cast iron inserts of the invention Enlarged diagram.
Fig. 5 is the structure about clamping built-in fitting in a kind of large-scale dredge pump pump case using wear resistant cast iron inserts of the invention Enlarged diagram.
Specific embodiment
The present invention is described in further detail by embodiment in 1-5 below in conjunction with the accompanying drawings, but embodiment will not be formed to this hair Bright limitation.
It is a kind of to be made of using the large-scale dredge pump pump case of wear resistant cast iron inserts bearing shell 1 and wear-resistant liner, in pressure-bearing The inner wall of shell 1 is provided with wear-resistant liner；Wear-resistant liner include filled layer 2, U-shaped mosaic block 3, annular mosaic block 4, latch segment 5, Branching block 6, clamping built-in fitting 7, welding built-in fitting 8 and hush panel 9.
The U-shaped mosaic block 3 that multiple cross sections are U-shaped is pasted in the inner wall of bearing shell 1, outside U-shaped mosaic block 3 and pressure-bearing Filled layer 2 is provided between shell 1, the latch segment 4 that cross section is U-shaped is arranged as required between U-shaped mosaic block 3, is being held The exit of pressure shell 1 is close to U-shaped mosaic block 3 and is provided with annular mosaic block 4 of the cross section for annular, in annular mosaic block 4 The branching block 6 for diverted liquid is provided at close wear-resistant liner between U-shaped mosaic block 3；
Filled layer 2 is provided between bearing shell 1 and U-shaped mosaic block 3, annular mosaic block 4, is filled in filled layer 2 Cement, mortar or concrete.
Welding built-in fitting 8 and clamping built-in fitting are additionally provided between bearing shell 1 and U-shaped mosaic block 3, annular mosaic block 4 7；Welding built-in fitting 8 is inlayed by welding for being fixedly connected with bearing shell 1 and U-shaped mosaic block 3 or bearing shell 1 with annular Piece 4；Clamping built-in fitting 7 is used for will be between U-shaped mosaic block 3, annular mosaic block 4 and by U-shaped mosaic block 3, annular mosaic block 4 and 1 clamping of bearing shell.
Sealing is provided between U-shaped mosaic block 3, the end of annular mosaic block 4 and bearing shell 1, is set in sealing There is hush panel 9, seal, to 2 inner filling concrete of filled layer, mortar or concrete, to be tamping with hush panel 9 after to be filled.
U-shaped mosaic block 3, annular mosaic block 4, latch segment 5 and the branching block 6 uses cast iron materials.
The bearing shell 1 is helical form.
The welding built-in fitting 8 and clamping built-in fitting 7 use 15 steel.
The bearing shell 1 uses cast iron materials.
The hush panel 9 uses 304 stainless steels.
A kind of large-scale dredge pump pump case using wear resistant cast iron inserts of the invention to be welded and fixed method as follows：
（1）Clamping built-in fitting 7, welding built-in fitting 8 are staggeredly arranged successively in U-shaped mosaic block 3 or annular mosaic block 4, 5 ~ 10mm of the distance that is staggered；
（2）Before the U-shaped mosaic block 3 of sand casting or annular mosaic block 4, clamping built-in fitting 7, welding built-in fitting 8 are mounted on Corresponding position in sand mold；Pour into a mould wear resistant cast iron, clamping built-in fitting 7 after cooled and solidified, welding built-in fitting 8 and U-shaped mosaic block 3 or I.e. securely connection is an entirety to annular mosaic block 4；
（3）Clamping built-in fitting 7 and the U-shaped mosaic block 3 for welding built-in fitting 8 or annular mosaic block 4 will be set according to sequence The inner wall of bearing shell 1 is assembled into, and is welded；
（4）Branching block 6 is installed to correct position, welding built-in fitting 8 and bearing shell 1 is welded using carbon arc welding；
（5）It installs close to the U-shaped mosaic block 3 of 6 both sides of branching block to correct position, ensures clamping built-in fitting 7 by branching block 6 clampings weld welding built-in fitting 8 and bearing shell 1 using carbon arc soldering method；
（6）Cement injection is filled in filled layer 2 of the mounted U-shaped mosaic block 3 with bearing shell 1；
（7）After cement solidification 2.5 ~ 3 hours, each adjacent U-shaped mosaic block 3 is installed successively by the above process, is often installed Cement of 3 ~ 4 pieces of perfusions；Up to all U-shaped mosaic blocks 3, installation is complete；
（8）Installation locking block 5, and cement injection is filled；
（9）, annular mosaic block 4 is installed to correct position, and cement injection is filled；
（10）Hush panel 9 is welded to 1 corresponding position of bearing shell；Hush panel 9 uses 304 stainless steels, can be reliably Fixed each U-shaped mosaic block 3 and annular mosaic block 4, and can prevent between silt enters between wear-resistant liner and bearing shell 1 Gap.

Claims (3)

1. a kind of large-scale dredge pump pump case using wear resistant cast iron inserts, it is characterised in that：By bearing shell and wear-resistant liner group Into being provided with wear-resistant liner in the inner wall of bearing shell；Wear-resistant liner includes filled layer, U-shaped mosaic block, annular mosaic block, lock Tight block, branching block, clamping built-in fitting, welding built-in fitting and hush panel；
The U-shaped mosaic block that multiple cross sections are U-shaped is pasted in the inner wall of bearing shell, between U-shaped mosaic block and bearing shell Filled layer is provided with, the latch segment that cross section is U-shaped is arranged as required between U-shaped mosaic block, in going out for bearing shell It is close to U-shaped mosaic block at mouthful and is provided with annular mosaic block of the cross section for annular, between annular mosaic block and U-shaped mosaic block The branching block for diverted liquid is provided at wear-resistant liner；
Filled layer is provided between bearing shell and U-shaped mosaic block, annular mosaic block, filled with cement, mortar in filled layer Or concrete；
Welding built-in fitting and clamping built-in fitting are additionally provided between bearing shell and U-shaped mosaic block, annular mosaic block；It welds pre-buried Part is fixedly connected with bearing shell and U-shaped mosaic block or bearing shell and annular mosaic block by welding；Clamping built-in fitting For will be between U-shaped mosaic block, annular mosaic block and by U-shaped mosaic block, annular mosaic block and bearing shell clamping；
Sealing is provided between U-shaped mosaic block, the end of annular mosaic block and bearing shell, sealing is provided in sealing Plate is sealed for filling concrete, mortar or concrete in filled layer, is tamping after to be filled with hush panel；
U-shaped mosaic block, annular mosaic block, latch segment and the branching block uses cast iron materials；
The bearing shell is helical form；
The welding built-in fitting and clamping built-in fitting use 15 steel；
The bearing shell uses cast iron materials.
2. a kind of large-scale dredge pump pump case using wear resistant cast iron inserts according to claim 1, it is characterised in that：It is described Hush panel use 304 stainless steels.
3. a kind of large-scale dredge pump pump case using wear resistant cast iron inserts is welded and fixed method, it is characterised in that：
（1）Clamping built-in fitting, welding built-in fitting are staggeredly arranged successively in U-shaped mosaic block or annular mosaic block, be staggered distance 5~10mm；
（2）Before the U-shaped mosaic block of sand casting or annular mosaic block, by clamping built-in fitting, welding installation of embedded parts in sand mold Corresponding position；Wear resistant cast iron is poured into a mould, clamping built-in fitting, welding built-in fitting and U-shaped mosaic block or annular mosaic block after cooled and solidified I.e. securely connection is an entirety；
（3）Clamping built-in fitting will be set and weld the U-shaped mosaic block of built-in fitting or annular mosaic block is held according to being sequentially assembled into The inner wall of shell is pressed, and is welded；
（4）Branching block is installed to correct position, welding built-in fitting and bearing shell is welded using carbon arc welding；
（5）It installs close to the U-shaped mosaic block of branching block both sides to correct position, ensures that clamping built-in fitting by branching block clamping, is adopted Welding built-in fitting and bearing shell are welded with carbon arc soldering method；
（6）Cement injection is filled in the filled layer of mounted U-shaped mosaic block and bearing shell；
（7）After cement solidification 2.5 ~ 3 hours, each adjacent U-shaped mosaic block is installed successively by the above process, often installs 3 ~ 4 pieces A cement is perfused；Up to all U-shaped mosaic blocks, installation is complete；
（8）Installation locking block, and cement injection is filled；
（9）, annular mosaic block is installed to correct position, and cement injection is filled；
（10）Hush panel is welded to bearing shell corresponding position；Hush panel uses 304 stainless steels, can be securely fixed each A U-shaped mosaic block and annular mosaic block, and silt can be prevented to enter the gap between wear-resistant liner and bearing shell.
CN201610198640.7A 2016-04-01 2016-04-01 A kind of large-scale dredge pump pump case using wear resistant cast iron inserts and it is welded and fixed method Active CN105736444B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610198640.7A CN105736444B (en) 2016-04-01 2016-04-01 A kind of large-scale dredge pump pump case using wear resistant cast iron inserts and it is welded and fixed method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610198640.7A CN105736444B (en) 2016-04-01 2016-04-01 A kind of large-scale dredge pump pump case using wear resistant cast iron inserts and it is welded and fixed method

Publications (2)

Publication Number Publication Date
CN105736444A CN105736444A (en) 2016-07-06
CN105736444B true CN105736444B (en) 2018-06-26

Family

ID=56252632

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610198640.7A Active CN105736444B (en) 2016-04-01 2016-04-01 A kind of large-scale dredge pump pump case using wear resistant cast iron inserts and it is welded and fixed method

Country Status (1)

Country Link
CN (1) CN105736444B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106837875B (en) * 2017-04-13 2023-12-29 广州市拓道新材料科技有限公司 Wear-resisting sediment stuff pump body
CN110714939A (en) * 2019-10-28 2020-01-21 襄阳五二五泵业有限公司 Narrow-runner pump body machining method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732028A (en) * 1970-07-01 1973-05-08 Vredestein Rubber Centrifugal pump, in particular a sand or gravel pump, and a method for operating such a pump
JPS59226298A (en) * 1983-06-06 1984-12-19 Kawasaki Heavy Ind Ltd Liner of pump casing
US5219461A (en) * 1992-04-28 1993-06-15 Baker Hughes Incorporated Reinforced elastomer lining for pump casing and associated method of manufacture
CN2918817Y (en) * 2006-07-07 2007-07-04 宜兴市宙斯泵业有限公司 Antiwear body inlaid antiseptic centrifugal pump
CN201083212Y (en) * 2007-07-30 2008-07-09 湖南精城特种陶瓷有限公司 Abrasion-proof ceramic lining slag stuff pump
CN102374199A (en) * 2011-11-18 2012-03-14 宜兴市宙斯泵业有限公司 Anticorrosive wear-resistant centrifugal pump volute casing
CN205639042U (en) * 2016-04-01 2016-10-12 长江南京航道工程局 Adopt large -scale dredge pump pump case of wear resistant cast iron inserts

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732028A (en) * 1970-07-01 1973-05-08 Vredestein Rubber Centrifugal pump, in particular a sand or gravel pump, and a method for operating such a pump
JPS59226298A (en) * 1983-06-06 1984-12-19 Kawasaki Heavy Ind Ltd Liner of pump casing
US5219461A (en) * 1992-04-28 1993-06-15 Baker Hughes Incorporated Reinforced elastomer lining for pump casing and associated method of manufacture
CN2918817Y (en) * 2006-07-07 2007-07-04 宜兴市宙斯泵业有限公司 Antiwear body inlaid antiseptic centrifugal pump
CN201083212Y (en) * 2007-07-30 2008-07-09 湖南精城特种陶瓷有限公司 Abrasion-proof ceramic lining slag stuff pump
CN102374199A (en) * 2011-11-18 2012-03-14 宜兴市宙斯泵业有限公司 Anticorrosive wear-resistant centrifugal pump volute casing
CN205639042U (en) * 2016-04-01 2016-10-12 长江南京航道工程局 Adopt large -scale dredge pump pump case of wear resistant cast iron inserts

Also Published As

Publication number Publication date
CN105736444A (en) 2016-07-06

Similar Documents

Publication Publication Date Title
CN103061780B (en) Operation tunnel structure steel loop reinforced construction method
CN105736444B (en) A kind of large-scale dredge pump pump case using wear resistant cast iron inserts and it is welded and fixed method
CN102191940A (en) Water conveyance tunnel with prestressed composite lining for shield tunnelling
CN207420587U (en) One kind is suitable for TBM tunnel-liner rings
CN106885061A (en) A kind of heterogeneous segmented high abrasion bilayer straight tube for concrete conveyance
CN103924978A (en) Construction method for sinking inner layer well wall with freezing method
CN110454223A (en) Counter-slope TBM tunnels tunnel drainage construction method
CN106939791A (en) One kind can prestress steel structure concrete pipe sheet and its construction method
CN106121658A (en) Freeze-wellboring pit shaft borehole wall supporting construction and construction method thereof
Ye et al. Shield Equipment Optimization and Construction Control Technology in Water‐Rich and Sandy Cobble Stratum: A Case Study of the First Yellow River Metro Tunnel Undercrossing
CN106089245B (en) One kind postpones grouting method after being used for single shield TBM walls
CN206111181U (en) Freeze novel steel sheet wall of a well structure of well
CN205639042U (en) Adopt large -scale dredge pump pump case of wear resistant cast iron inserts
JP6257814B1 (en) Construction method of large section underground structure
CN107654239A (en) A kind of tunnel bottom is excavated and inverted arch construction method
CN105927251B (en) Shallow buried type magnesium iron frame-reinforced concrete combination tunnel siding
CN110173229A (en) One kind being used for the anti-well off-angle drilling plugging device of oil-gas pipeline and method for blocking
CN206478322U (en) Pipeline and its component
CN108166998A (en) A kind of tunnel-liner support structure and its construction method
CN210033461U (en) Segment lining grouting system based on externally-embedded channel and stretchable bag
CN108253202A (en) Pipeline and preparation method thereof
CN217632457U (en) A waterproof leaking stoppage connecting device for contact passageway and thread tunnel
JP2018012945A (en) Construction method for large sectional underground structure
Winterberg et al. Santoña–Laredo general interceptor collector–challenges and solutions
KR100717849B1 (en) Construction method of 2-arch tunnel

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant