CN203939641U

CN203939641U - A kind of Wet Parts of slurry pump

Info

Publication number: CN203939641U
Application number: CN201420271909.6U
Authority: CN
Inventors: 吴志文
Original assignee: WUHAN HANTING ELECTRONIC SCIENCE & TECHNOLOGY Co Ltd
Current assignee: WUHAN HANTING ELECTRONIC SCIENCE & TECHNOLOGY Co Ltd
Priority date: 2014-05-26
Filing date: 2014-05-26
Publication date: 2014-11-12
Anticipated expiration: 2024-05-26

Abstract

The utility model discloses a kind of Wet Parts of slurry pump, comprise matrix and wearing layer, described matrix is carbon steel matrix, and described wearing layer is by epoxy resin and silicon carbide is mixing cured forms, and described matrix and described wearing layer are bonding by primer.A kind of Wet Parts of slurry pump that the utility model provides, when having kept good hardness, strengthened the rub proofness of Wet Parts of slurry pump, made that Wet Parts of slurry pump is more durable, longer service life, thereby the manufacturing mechanism that reduces industrial and mining enterprise upgrades cost.

Description

A kind of Wet Parts of slurry pump

Technical field

The utility model relates to a kind of composite material, is specifically related to a kind of Wet Parts of slurry pump.

Background technique

Along with scientific and technical development, industrial products to physical resources optimization select and reduce production cost, to improve the needs in product working life more and more urgent.In mine, the field such as hydraulic engineering and thermal power plant, slag stock pump is not only only carried various liquid mediums, what many times carry is all the mixed medium of liquid and solid, as mortar, slag slurry, contains a large amount of solid-rigid granule materials in these media.These granule materials not only have very strong wearing and tearing to the flow passage part of slag stock pump, the very strong corrosivity in addition having, and generally all can in high pressure motion, produce very strong cavitation erosion.This just requires flow passage part must have certain wear-resisting property, decay resistance and cavitation resistance ability.

According to taking out size of grain, pellet hardness, lift, watt level, rotating speed height in the medium, concentration, caliber, medium of slurry, corrosion-resistant, wear-resistant, the cavitation of Wet Parts of slurry pump are had to different requirements.In medium, particle is larger, particle is harder, concentration is higher, also higher to the requirement corrosion-resistant, wear-resistant, cavitation of Wet Parts of slurry pump.The Wet Parts of slurry pumps such as front and back backplate, sheath, impeller in the course of the work, need to bear the impact of the medium that contains a large amount of sand grains, have produced very large wearing and tearing, corrosion and cavitation erosion.Once may wear to, these flow passage parts exceed in allowed band; will produce the situations such as Lou hourglass is starched, a large amount of mortar retains in the pump housing; and cause pumpability greatly to reduce; drive the current of electric sharp increase that slag stock pump rotates even can cause and burn out; therefore; industrial and mining enterprise must be in the technical order of certain operating process, parameter, thinks before can not working on and shuts down the flow passage part more renewing, using the flow passage part damaging as waste disposal in its experience.

What Wet Parts of slurry pump raw material were used at present is mainly high chromium alloy material.High chromium alloy material cost is high, material hardness is high, mechanical processing difficulty is large, the more important thing is, this costliness, to seem the hard high-chromium alloy Wet Parts of slurry pump using effect in actual production process unsatisfactory, wear-resisting property, corrosion resistance and anti-cavitation erosion effect are also bad, especially at metal mine, what this high-chromium alloy Wet Parts of slurry pump had working life only had about 20 days, and the slag stock pump shell of contact medium, motor are not that flow passage part is doubly a lot of or even tens times common service time.In this case, changing continually flow passage part is the unique method that these industrial and mining enterprise maintain production, but the flow passage part of frequently changing slag stock pump is not only produced and has been brought very large acquisition cost to industrial and mining enterprise, reduced manufacturing efficiency, also brought very large workload, flow passage part of every replacing needs the workload of 4-5 workman 1-2 days.

Model utility content

For the deficiencies in the prior art, the utility model aims to provide a kind of Wet Parts of slurry pump, by adopting carbon steel matrix and composite structure by epoxy resin and the mixing cured wearing layer forming of silicon carbide, make Wet Parts of slurry pump obtain better flintiness and wear-resisting property, improve its working life, reduce the cost of production of industrial and mining enterprise.

Epoxy resin is the important thermosetting plastics of a class, and the epoxy resin after solidifying has good physics, chemical property, and it has excellent bonding strength to the surface of metal and nonmetallic material, fire retardant are good, and set shrinkage is little, product size good stability, hardness is high, and pliability is better; Epoxy resin has very strong cohesive force, and structure of molecule is fine and close, so its mechanical property is higher than universal thermosetting resins such as phenolic resin and unsaturated polyesters.Silicon carbide hardness is very large, is approximately Mohs 9.5 degree, is silicates mineral, through waterpower sorting, machining, the abrasives that the methods such as sieving and grading are made.Silicon carbide hardness is only second to diamond, boron carbide and cubic boron nitride, ranks the 4th in inorganic material.In addition, silicon carbide has stronger wear-resisting property.Therefore silicon carbide and epoxy resin are mixing cured extremely strong as flow passage part materials'use combination property.

To achieve these goals, the utility model adopts following scheme:

A Wet Parts of slurry pump, comprises matrix and wearing layer, and described matrix is carbon steel matrix, and described wearing layer is by epoxy resin and silicon carbide is mixing cured forms, and described matrix and described wearing layer are bonding by primer.

It should be noted that, manufacture described a kind of Wet Parts of slurry pump, first carbon steel is processed into described carbon steel matrix, then by the mode of polishing or sandblast, the dust of described carbon steel matrix surface, greasy dirt and rusty stain are removed, after described carbon steel matrix surface parches completely, at described carbon steel matrix surface, cover the above primer; Now, epoxy resin, silicon carbide and curing agent are mixed according to certain ratio, after described primer parches, the wearing layer raw material that epoxy resin, silicon carbide and curing agent are mixed are filled on described carbon steel matrix, slightly dry rear vibrations compacting, makes itself and described carbon steel matrix fully bonding, firmly compound.

As a kind of preferred version, described wearing layer thickness is less than or equal to 30 millimeters.

The beneficial effects of the utility model are: a kind of Wet Parts of slurry pump that the utility model provides, when having kept good hardness, strengthened the rub proofness of Wet Parts of slurry pump, make that Wet Parts of slurry pump is more durable, longer service life, thereby the manufacturing mechanism that reduces industrial and mining enterprise upgrades cost.

Accompanying drawing explanation

Fig. 1 is schematic cross-section of the present utility model.

Embodiment

Below with reference to accompanying drawing, the utility model will be further described, it should be noted that, the present embodiment be take the technical program as prerequisite, provides detailed implementation step, but is not limited to the present embodiment.

As shown in Figure 1, a kind of Wet Parts of slurry pump, comprises matrix 1 and wearing layer 2, and described matrix 1 is carbon steel matrix, and described wearing layer 2 is by epoxy resin and silicon carbide is mixing cured forms, and described matrix 1 and described wearing layer 2 are bonding by primer 3.Described wearing layer 2 thickness are less than or equal to 30 millimeters.

Manufacture described a kind of Wet Parts of slurry pump, first carbon steel is processed into described carbon steel matrix, then use the mode of polishing or sandblast by the dust of described carbon steel matrix surface, greasy dirt and rusty stain, after described carbon steel matrix surface parches completely, at described carbon steel matrix surface, cover the above primer; Now, epoxy resin, silicon carbide and curing agent are mixed according to certain ratio, after described primer parches, the wearing layer raw material that epoxy resin, silicon carbide and curing agent are mixed are filled on described carbon steel matrix, slightly dry rear vibrations compacting, makes itself and described carbon steel matrix fully bonding, firmly compound.

For a person skilled in the art, can make other various corresponding changes and distortion according to above technological scheme and design, and these all changes and distortion all should belong to the protection domain of the utility model claim within.

Claims

1. a Wet Parts of slurry pump, is characterized in that, comprises carbon steel matrix, and wear-resisting layer covering on described carbon steel matrix is bonding by primer between described matrix and described wearing layer.

2. a kind of Wet Parts of slurry pump according to claim 1, is characterized in that, described wearing layer thickness is less than or equal to 30 millimeters.