CN206477190U

CN206477190U - A kind of pulp grinder mill with the Ni-based diamondite sprayed coating of nanometer

Info

Publication number: CN206477190U
Application number: CN201720081716.8U
Authority: CN
Inventors: 周宇璐; 简勇辉
Original assignee: Foshan Zhongkeng Metal Hard Surface Co Ltd
Current assignee: Foshan Zhongkeng Metal Hard Surface Co Ltd
Priority date: 2017-01-22
Filing date: 2017-01-22
Publication date: 2017-09-08
Anticipated expiration: 2027-01-22

Abstract

The utility model provides a kind of pulp grinder mill with the Ni-based diamondite sprayed coating of nanometer, the mill is cirque structure, provided with Liang Ge concentric circles area, it is Nei Mo areas close to the center of circle, multiple first racks are provided with, is Wai Mo areas away from the center of circle, is provided with multiple second racks, the mill card is provided with the Ni-based diamondite sprayed coating of nanometer, and the Ni-based diamondite sprayed coating of nanometer is made up of nanometer tungsten carbide and Ni60 alloy powders.The utility model in disc surface by setting the Ni-based diamondite sprayed coating of nanometer, using nanometer tungsten carbide and the mixture of nickel-base alloy, hardness is up to HV 1,200 1300, make coating that there is very high hardness and wearability, the collision of the impurity such as sandstone in waste paper, cullet, peg can be born and extruded without coming off, and then extend the service life of mill.

Description

A kind of pulp grinder mill with the Ni-based diamondite sprayed coating of nanometer

Technical field

The utility model is related to paper pulp manufacture field, more particularly to a kind of with the Ni-based diamondite spraying of nanometer The pulp grinder mill of layer.

Background technology

Traditional pulp grinder generally uses burr grinder, and two mills are not contacted face-to-face, and gap only has 0.10-0.30mm；One of mill transfixion, another mill rotates at a high speed, and paper pulp enters two from the centre of mill In gap between individual mill.The rack for high rigidity of being gathered on mill, cuts off paper pulp fiber, rubs disconnected.The rack of mill by Paper fiber and the abrasion of the high intensity of various impurity, mill is scrapped after tooth height is ground off 5 mm.

Traditional mill is cast using high Ni-Cr stainless steel, heat treatment hardness HRC 50-60, with relatively good wear-resisting Property, toughness and corrosion resistance.The paper pulp raw material of separate sources is processed, but the service life of the mill typically only has 1-6 months, It is difficult to the requirement for meeting paper pulp processing.

Therefore, prior art has yet to be improved and developed.

Utility model content

The purpose of this utility model is to provide a kind of pulp grinder with the Ni-based diamondite sprayed coating of nanometer Mill, it is intended to which it is poor to solve existing pulp grinder mill wearability, the problem of service life is short.

The technical solution of the utility model is as follows：

A kind of pulp grinder mill with the Ni-based diamondite sprayed coating of nanometer, the mill is annular knot Structure, provided with Liang Ge concentric circles area, what it is close to the center of circle is Nei Mo areas, is provided with multiple first racks, away from the center of circle for Wai Mo areas, Multiple second racks are provided with, the mill card is provided with the Ni-based diamondite sprayed coating of nanometer, the Ni-based carbon of nanometer Change tungsten alloy sprayed coating to be made up of nanometer tungsten carbide and Ni60 alloy powders.

The described pulp grinder mill with the Ni-based diamondite sprayed coating of nanometer, wherein, first rack Sparse is distributed in Nei Moqu, and the flank of tooth forms acute rake angle with the mill face.

The described pulp grinder mill with the Ni-based diamondite sprayed coating of nanometer, wherein, second rack Area is ground in intensive distribution outside, and the second rack being divided into several regions, the same area is parallel to each other.

The described pulp grinder mill with the Ni-based diamondite sprayed coating of nanometer, wherein, the nanometer is Ni-based The thickness of diamondite sprayed coating is 0.3-0.8mm.

The described pulp grinder mill with the Ni-based diamondite sprayed coating of nanometer, wherein, the nanometer is Ni-based Layer of sand is additionally provided between diamondite sprayed coating and the mill.

The described pulp grinder mill with the Ni-based diamondite sprayed coating of nanometer, wherein, if the mill by Dry fan-shaped grinding is spliced, and is fixed on a size and the mill identical by the fixing hole being arranged in grinding On second mill.

The beneficial effects of the utility model are：The utility model provides a kind of with the Ni-based diamondite spraying of nanometer The pulp grinder mill of layer, by setting the Ni-based diamondite sprayed coating of nanometer in disc surface, using nanometer tungsten carbide With the mixture of nickel-base alloy, hardness is up to HV 1200-1300, coating is had very high hardness and wearability, can bear to give up The collision of the impurity such as sandstone, cullet, peg and extruded in paper without coming off, and then extend the service life of mill, Installed in addition, mill is divided into several sector grindings, be easy to the local replacing of mill.

Brief description of the drawings

Fig. 1 is a kind of pulp grinder mill with the Ni-based diamondite sprayed coating of nanometer that the utility model is provided Structural representation.

Fig. 2 is a kind of pulp grinder mill with the Ni-based diamondite sprayed coating of nanometer that the utility model is provided Partial sectional view.

Accompanying drawing marks explanation：1st, Nei Moqu；2nd, Wai Moqu；3rd, the first rack；4th, the second rack；5th, fixing hole；6th, nanometer Tungsten carbide of nickel-base alloy spraying coating.

Embodiment

To make the purpose of this utility model, technical scheme and advantage clearer, clear and definite, develop simultaneously implementation referring to the drawings The utility model is further described example.

Referring to Fig. 1 to Fig. 2, a kind of paper pulp with the Ni-based diamondite sprayed coating of nanometer provided for the utility model Millstone, the mill is cirque structure, provided with Liang Ge concentric circles area, and what it is close to the center of circle is Nei Mo areas 1, is provided with the One rack 3, is Wai Mo areas 2 away from the center of circle, is provided with the second rack 4.In actual production process, paper pulp is through in the mill The heart enters, and flows from inside to outside, sequentially passes through the attrition process in Nei Mo areas 1 and Wai Mo areas 2.Nei Mo areas are first carried out to the paper pulp Corase grind, then circulate to the progress of Wai Mo areas 2 fine gtinding.

As shown in Fig. 2 the mill card is provided with the Ni-based diamondite sprayed coating 6 of nanometer, nanometer tungsten carbide of nickel-base The thickness of alloy spraying coating 6 is 0.3-0.8mm.Preferably, the Ni-based diamondite sprayed coating 6 of nanometer by nanometer tungsten carbide and Ni60 alloy powders are made, and can bear the collision of the impurity such as sandstone in waste paper, cullet, peg and extrude without coming off. In actual applications, the Ni-based diamondite sprayed coating 6 of nanometer can be made by following process：The nanometer tungsten carbide and Ni60 Alloy powder, in the disc surface, forms the preliminary Ni-based diamondite sprayed coating 6 of nanometer, then use by supersonic spray coating Oxy-acetylene flame is sintered the Ni-based diamondite sprayed coating 6 of nanometer, 1000 DEG C of sintering temperature, makes the Ni-based carbonization of nanometer Tungsten alloy sprayed coating 6 reaches more than 200MPA with mill formation metallurgical binding, bond strength；While nanometer tungsten carbide of nickel-base Nanometer tungsten carbide and nickel-base alloy combine together in alloy spraying coating 6, make in the Ni-based diamondite sprayed coating 6 of nanometer WC and The hard phases such as CrC, CrB and Ni formation high intensity metallurgical binding, when being worn away Hard Inclusion do not allow it is easy to fall off, therefore coating have There is very high hardness and wearability, hardness is up to HV 1200-1300.Simultaneously as the Ni-based diamondite sprayed coating 6 of nanometer The presence of middle tungsten carbide nanometer phase so that the Ni-based diamondite sprayed coating 6 of nanometer has higher toughness, is touched by impurity Coating is difficult to collapse de- when hitting.Further, since the nanometer after the Ni-based very high density of diamondite sprayed coating 6 of nanometer, sintering is Ni-based Diamondite sprayed coating 6 has smooth initial surface, can be used without processing, saves substantial amounts of machining expense.

Preferably, the described pulp grinder mill with the Ni-based diamondite sprayed coating of nanometer, wherein, the first tooth Bar 3 it is sparse be distributed in Nei Mo areas 1, the flank of tooth forms acute rake angle with the mill face.When so making slurry into mill, together When acted on by centrifugal force and axial thrust, be press against by inclined teeth inclined-plane after slurry is ground and carry out essence into Wai Mo areas 2 quickly Fine lapping.

In actual applications, area 1 is ground in the intensive distribution of the second rack 4 outside, and fine gtinding, Wai Mo areas 1 are carried out to slurry The second rack 4 being divided into several regions, the same area is parallel to each other, and is conducive to making slurry enter the second rack 4 unobstructedly Between slot in.

In actual applications, p sandblastings layer is additionally provided between the Ni-based diamondite sprayed coating 6 of nanometer and the mill, The sandblasting layer can play a part of cleaning mill face, while also contributing to the Ni-based diamondite sprayed coating 6 of nanometer preferably It is attached on the mill.

As shown in figure 1, in actual applications, the mill can be spliced by several sector grindings, and by setting Put the fixing hole 5 in grinding and be fixed on a size with the mill of mill identical second, the mill is split into Several sector grindings, facilitate the processing and replacing of mill, after the rack abrasion in some region, need to only change region mill Piece, further saves cost.

It should be appreciated that application of the present utility model is not limited to above-mentioned citing, those of ordinary skill in the art are come Say, can according to the above description be improved or converted, all these modifications and variations should all belong to the appended power of the utility model The protection domain that profit is required.

Claims

1. a kind of pulp grinder mill with the Ni-based diamondite sprayed coating of nanometer, it is characterised in that the mill is Cirque structure, provided with Liang Ge concentric circles area, is Nei Mo areas close to the center of circle, is provided with multiple first racks, away from the center of circle For Wai Mo areas, multiple second racks are provided with, the mill card is provided with the Ni-based diamondite sprayed coating of nanometer.

2. the pulp grinder mill according to claim 1 with the Ni-based diamondite sprayed coating of nanometer, its feature Be, first rack it is sparse be distributed in Nei Moqu, the flank of tooth forms acute rake angle with the mill face.

3. the pulp grinder mill according to claim 1 with the Ni-based diamondite sprayed coating of nanometer, its feature It is, area is ground in the intensive distribution of second rack outside, the second rack being divided into several regions, the same area is mutually put down OK.

4. the pulp grinder mill according to claim 1 with the Ni-based diamondite sprayed coating of nanometer, its feature It is, the thickness of the Ni-based diamondite sprayed coating of nanometer is 0.3-0.8mm.

5. the pulp grinder mill according to claim 4 with the Ni-based diamondite sprayed coating of nanometer, its feature It is, sandblasting layer is additionally provided between the Ni-based diamondite sprayed coating of nanometer and the mill.

6. the pulp grinder mill according to claim 1 with the Ni-based diamondite sprayed coating of nanometer, its feature It is, the mill is spliced by several sector grindings, and is fixed on one greatly by the fixing hole being arranged in grinding On the small and mill of mill identical second.