CN117301653A - Impact-resistant and wear-resistant composite hopper lining unit structure and preparation method thereof - Google Patents

Impact-resistant and wear-resistant composite hopper lining unit structure and preparation method thereof Download PDF

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Publication number
CN117301653A
CN117301653A CN202311381291.9A CN202311381291A CN117301653A CN 117301653 A CN117301653 A CN 117301653A CN 202311381291 A CN202311381291 A CN 202311381291A CN 117301653 A CN117301653 A CN 117301653A
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China
Prior art keywords
resistant
wear
locking
structure layer
box body
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CN202311381291.9A
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Chinese (zh)
Inventor
孙书刚
胡凡
李娜
罗广
葛熔熔
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Nantong Institute of Technology
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Nantong Institute of Technology
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Priority to CN202311381291.9A priority Critical patent/CN117301653A/en
Publication of CN117301653A publication Critical patent/CN117301653A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/08—Interconnection of layers by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B18/00—Layered products essentially comprising ceramics, e.g. refractory products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/04—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by at least one layer folded at the edge, e.g. over another layer ; characterised by at least one layer enveloping or enclosing a material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/263—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer having non-uniform thickness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/06—Interconnection of layers permitting easy separation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/02—Wall construction
    • B65D90/04—Linings
    • B65D90/041—Rigid liners fixed to the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/536—Hardness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/554—Wear resistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Chutes (AREA)

Abstract

The invention discloses an impact-resistant and wear-resistant composite hopper lining unit structure and a preparation method thereof, wherein the impact-resistant and wear-resistant composite hopper lining unit structure comprises an installation structure layer connected with an external structure and a wear-resistant structure layer contacted with materials, and a buffer structure layer is arranged between the installation structure layer and the wear-resistant structure layer; the mounting structure layer and the wear-resistant structure layer are firmly metallurgically bonded through a stable structure; the stabilizing structure comprises a locking structure fixedly connected with the installation structure layer, and a locking hole matched with the locking structure is formed in the middle of the wear-resistant structure layer. The invention has the characteristics of wear resistance, easy installation and repairability, and can effectively avoid serious hopper wear, thereby solving the serious potential safety hazard of the hopper.

Description

Impact-resistant and wear-resistant composite hopper lining unit structure and preparation method thereof
Technical Field
The invention relates to the technical field of metal smelting equipment, in particular to an impact-resistant and wear-resistant composite hopper lining unit structure and a preparation method thereof.
Background
In the metal smelting industry, hoppers are commonly used to transport sintered cinder materials. In the prior art, a hopper for conveying cinder is manufactured by using a wear-resistant lining plate, the hardness of the wear-resistant lining plate is lower than that of cinder materials, after the wear-resistant lining plate is operated for a period of time, the wear-resistant lining plate is subjected to local severe wear, even the whole lining plate is caused to fall off, the production is brought with serious hidden trouble, and the service life of the wear-resistant lining plate is also shorter. The ceramic plate is fixed on the surface of the hopper in a mechanical combination and gluing mode, and can effectively replace a metal wear-resistant lining plate due to high hardness, good wear resistance and long service life, but the ceramic plate is large in brittleness, poor in impact resistance to a hard block doped in materials, easy to cause brittle fracture and even falling off of corners of the ceramic plate, serious in local abrasion, serious in potential safety hazard for production, and besides, the ceramic plate is difficult to repair after falling off, long in maintenance period and high in cost.
Disclosure of Invention
The invention aims to: in order to overcome the defects in the prior art, the invention provides the impact-resistant and wear-resistant composite hopper lining unit structure and the preparation method thereof, which have the characteristics of wear resistance, easy installation and repairability, and can effectively avoid serious hopper wear, thereby solving the serious potential safety hazard of the hopper.
The technical scheme is as follows: in order to achieve the above purpose, the composite hopper lining unit structure with impact resistance and wear resistance and the preparation method thereof comprise an installation structure layer connected with an external structure and a wear-resistant structure layer contacted with materials, wherein a buffer structure layer is clamped between the installation structure layer and the wear-resistant structure layer; the mounting structure layer and the wear-resistant structure layer are firmly metallurgically bonded through a stable structure; the stabilizing structure comprises a locking structure fixedly connected with the installation structure layer, and a locking hole matched with the locking structure is formed in the middle of the wear-resistant structure layer.
Further, the mounting structure layer is a metal box body, the wear-resistant structure layer is a ceramic plate, and the buffer structure layer is an elastic structure layer formed by condensing a composite adhesive; the ceramic plate is placed in the middle in the metal box body, the composite adhesive is filled in gaps of all the combining surfaces of the ceramic plate and the metal box body, and the upper surface of the ceramic plate is flush with the port surface of the metal box body.
Further, the locking structure is a conical steel structure, and the small diameter end of the locking structure is fixedly connected to the center of the bottom surface of the metal box body; the part of the locking hole, which is matched with the locking structure, is a conical hole.
Further, the inner end part of the locking hole is the conical hole, and the outer end part of the locking hole is a cylindrical hole; a circular ceramic cover is arranged in the cylindrical hole in the middle, and the upper end face of the circular ceramic cover is flush with the upper end face of the wear-resistant structure layer; and the gaps between the circular ceramic cover, the cylindrical holes and the locking structure are filled with the composite adhesive.
Further, the taper of the conical hole is 2-5 degrees.
Further, the method comprises the following steps:
step one, stamping a steel plate to form a metal box body;
step two, carrying out sand blasting treatment on the inner wall surface of the metal box body;
step three, uniformly coating the composite adhesive on the bonding surface of the ceramic plate, then loading the ceramic plate into a metal box body, and tightly pressing the ceramic plate to ensure that the composite adhesive overflows from a gap between the ceramic plate and a frame of the metal box body;
fourthly, after the composite adhesive is solidified for 60-90min, the locking structure is placed in the locking hole and is attached to the conical hole at the inner end part of the locking structure, and then the locking structure is welded at the bottom of the metal box body;
step five, uniformly coating the ceramic cover with a composite adhesive, and placing the ceramic cover into a locking hole to be mounted on the top of the locking structure;
and step six, after the composite adhesive is solidified, the preparation of the composite hopper lining unit structure is completed.
Further, the composite adhesive is formed by uniformly mixing A, B components and A, B components, wherein the mixing mass ratio of the two components is 1:1.
Further, the component A is acrylic acid modified epoxy or epoxy resin; the component B is modified amine or hardener.
Further, the ceramic plate is made of aluminum oxide or zirconium oxide.
The beneficial effects are that: the invention relates to an impact-resistant and wear-resistant composite hopper lining unit structure and a preparation method thereof, which at least comprise the following advantages:
(1) By utilizing the characteristics of high hardness and good wear resistance of the ceramic plate, compared with a metal wear-resistant lining plate, the wear resistance of the ceramic/metal composite box is greatly improved, and the service life of the ceramic/metal composite box is more than 5 times of that of the original ceramic/metal composite box.
(2) The ceramic/metal composite box can be directly welded and installed on the surface of the hopper by a user on site, and is convenient to install.
(3) The bottom surface of the ceramic/metal composite box is welded on the surface of the hopper, and the ceramic plates are combined with the outer frame of the box through an adhesive, so that even if the material contains larger hard blocks, the ceramic plates can be effectively buffered in all directions, and the impact resistance of the ceramic plates is greatly improved compared with that of the ceramic plates with the traditional lining.
(4) In the use process of the ceramic/metal composite box, if abrasion or falling-off occurs, the original ceramic box can be taken down and then a new ceramic box is welded, so that local repairability is realized, and the maintenance cost is greatly reduced.
(5) The wear-resistant ceramic/metal composite box manufactured by the process is successfully applied to a coal conveying hopper, and successfully replaces a metal wear-resistant lining plate, so that the energy consumption caused by frequent replacement of the metal lining plate is greatly reduced, and a certain contribution is made to the reduction of industrial carbon emission.
Drawings
FIG. 1 is a schematic end view of an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of an embodiment of the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
The composite hopper lining unit structure with impact resistance and wear resistance as shown in the accompanying drawings 1-2 and a preparation method thereof comprise an installation structure layer 1 connected with an external structure and a wear-resistant structure layer 2 contacted with materials, wherein a buffer structure layer 3 is arranged between the installation structure layer 1 and the wear-resistant structure layer 2; the mounting structure layer 1 and the wear-resistant structure layer 2 are firmly metallurgically bonded through a stable structure 4; the stabilizing structure 4 comprises a locking structure 41 fixedly connected with the installation structure layer 1, and a locking hole 21 matched with the locking structure 41 is formed in the middle of the wear-resistant structure layer 2.
This scheme is a but wear-resisting unit of easy replacement of welding, but tiling distributes in the surface of hopper, between adjacent unit and each unit and hopper, and both are connected through faying surface and mounting structure layer welded form to be convenient for carry out online change when appearing serious wearing and tearing. And during repairing, the wear-resisting unit with serious wear is disassembled, and a new wear-resisting unit is replaced and welded again. The wear-resisting structural layer that contacts with the material needs to adopt the wear-resisting material of high hardness to improve its wear resistance, increase of service life, and it not only frequently bears the scraping of cinder material to rub, still receives the impact of doping stereoplasm piece, so this scheme provides the buffering of multidirectional atress through buffer structure layer, and this buffer structure layer 3 parcel all faying surfaces 22 except wear-resisting face 21 in wear-resisting structural layer 2 all can obtain the buffering when receiving the impact of arbitrary direction on the wear-resisting face, thereby improves its shock resistance, further prolongs its life.
After the on-site actual paving, the installation structure layers of the plurality of wear-resisting units are welded together to form a grid-shaped frame structure welded on the surface of the hopper, so that a good supporting effect is achieved, each wear-resisting structure layer is firmly limited in each grid by a stable structure, the wear-resisting structure layers are prevented from being separated from the installation structure layers, and the overall stability of a formed wear-resisting surface is further guaranteed.
Examples:
the mounting structure layer 1 is a metal box body, the wear-resistant structure layer 2 is a ceramic plate, and the buffer structure layer 3 is an elastic structure layer formed by condensing a composite adhesive; the ceramic plate is placed in the middle in the metal box body, the composite adhesive is filled in gaps of all the combining surfaces of the ceramic plate and the metal box body, and the upper surface of the ceramic plate is flush with the port surface of the metal box body.
Preferably, the bottom end surface of the ceramic plate bonded with the metal box body is a corrugated structure surface, so that the bonding area can be increased, and the bonding strength can be improved. The coated composite adhesive is condensed between the corrugated structure surface and the inner wall surface of the metal box body to form an elastic structure body, and one side of the elastic structure body is flat and the other side of the elastic structure body is corrugated. As the coal slag, the hard block and other substances roll in the hopper randomly, when the ceramic plate is impacted by the hard block, the impact force can be in any direction, but the contacted wear-resistant surface is unique, so that the directions are generally consistent, the main component force acts on the inner end bonding surface of the ceramic plate bonded with the metal box body, and the small component force drives the movement trend of the ceramic plate relative to the metal box body from side movement. When the impact force is transmitted through the ceramic plate and acted on the corrugated elastic structure body through the corrugated structure surface, the force acted on the corrugated elastic structure body gradually disperses to be parallel to the inner end joint surface through the convex arch-shaped area, and then the impact force is dispersed to the periphery in the elastic structure body, so that most of the impact force is transmitted in the plane paved by the wear-resisting units, the effect of rapidly dispersing and counteracting the stress is achieved through the elastic action of the inner elastic structures of the wear-resisting units, and only the impact force of a small part directly acts on the bottom end surface of the metal box body. Because the bottom end surface of the metal box body is directly attached to the inner wall surface of the hopper, impact damage to the inner wall of the hopper can be reduced, in addition, most impact force is dispersed and consumed, and a small part of impact force acts on the metal box body, so that the metal box body has a longer period of severe plastic deformation, and the service life of the wear-resistant lining is further prolonged.
The locking structure 41 is a conical steel structure, and the small diameter end of the locking structure is fixedly connected to the center of the bottom surface of the metal box body; the portion of the locking hole 21 which is matched with the locking structure 41 is a conical hole, and the taper of the conical hole is 2-5 degrees.
The inner end part of the locking hole 21 is the conical hole, and the outer end part of the locking hole 21 is a cylindrical hole; a circular ceramic cover 5 is arranged in the cylindrical hole in the middle, and the upper end surface of the circular ceramic cover 5 is flush with the upper end surface of the wear-resistant structural layer 2; the gaps between the circular ceramic cover 5 and the cylindrical holes and the locking structures 41 are filled with the composite adhesive. The filled composite adhesive can play a role in buffering and protect welding spots.
The preparation method of the composite hopper lining unit structure in the embodiment specifically comprises the following steps:
step one, stamping a steel plate to form a metal box body; the thickness of the steel plate is 1-2mm, the metal box body is a cuboid box body, and the outer frame of the box body is chamfered by 3-5mm;
step two, carrying out sand blasting treatment on the inner wall surface of the metal box body to remove greasy dirt and rust on the surface;
step three, uniformly coating the composite adhesive on the bonding surface of the ceramic plate, then loading the ceramic plate into a metal box body, and tightly pressing the ceramic plate to ensure that the composite adhesive overflows from gaps between the ceramic plate and the frame of the metal box body, thereby ensuring that the composite adhesive is fully filled in the gaps between the bonding surfaces of the ceramic plate and the metal box body; wherein the length and width of the ceramic sheet are 1-3mm smaller than the length and width of the inner frame of the box body;
the ceramic sheet blank is formed by adopting a hot pressing injection process, and is manufactured by sintering at a high temperature after being dried. After drying, the 5 end faces of the ceramic sheet, which are in contact with the metal box, are subjected to polishing roughening treatment by using 80-100-mesh sand paper, and then are sintered at high temperature. The coarsening aims to enhance the bonding strength between the end face of the ceramic plate and the metal box and improve the shock resistance of the ceramic/metal composite box.
The ceramic plate is of a layered composite structure, and is made of alumina or zirconia. Preferably, the ceramic chip blank is made by adopting a double-layer structure design, the bottom structural layer 22 bonded with the metal box is made of zirconia, the surface working layer 23 is made of alumina, wherein the thickness of the zirconia layer accounts for 1/4-1/3 of the total thickness, and the bottom corrugation height is lower than the thickness of the zirconia layer. The bottom surface receives a main impact force, so that zirconia is only required to be used on the bottom surface. Furthermore, the surface working layer 23 may adopt a composite layered structure of alumina/mica/alumina, and uses alumina and fluorophlogopite as transition layers, so that when cracks appear on the surface layer after long-term impact, the cracks can deflect, thereby improving the fracture toughness of the ceramic sheet and further prolonging the service life of the ceramic sheet.
Step four, after the composite adhesive is solidified for 60-90min, the locking structure 41 is placed into the locking hole 21 and is attached to the conical hole at the inner end part of the locking structure 41, and then the locking structure 41 is welded at the bottom of the metal box body; the locking structure adopts a steel bowl, the shape of the locking structure is conical, and the bowl bottom of the steel bowl is welded with the metal box body during welding;
step five, uniformly coating the ceramic cover with a composite adhesive, and placing the ceramic cover into the locking holes 21 to be mounted on the top of the locking structure 41; the upper end face of the ceramic cover is flush with the upper end face of the ceramic plate;
and step six, after the composite adhesive is solidified, the preparation of the composite hopper lining unit structure is completed.
The composite adhesive is formed by uniformly mixing A, B components and A, B components, wherein the mixing mass ratio of the two components is 1:1. Preferably, the component A is acrylic modified epoxy resin or epoxy resin; the component B is modified amine or hardener.
The foregoing description is only of the preferred embodiments of the invention, it being noted that: it will be apparent to those skilled in the art that numerous modifications and adaptations can be made without departing from the principles of the invention described above, and such modifications and adaptations are intended to be comprehended within the scope of the invention.

Claims (9)

1. An impact-resistant and wear-resistant composite hopper lining unit structure is characterized in that: the wear-resistant material comprises a mounting structure layer (1) connected with an external structure and a wear-resistant structure layer (2) contacted with materials, wherein a buffer structure layer (3) is clamped between the mounting structure layer (1) and the wear-resistant structure layer (2); the mounting structure layer (1) and the wear-resistant structure layer (2) are firmly metallurgically bonded through a stable structure (4); the stabilizing structure (4) comprises a locking structure (41) fixedly connected with the mounting structure layer (1), and a locking hole (21) matched with the locking structure (41) is formed in the middle of the wear-resistant structure layer (2).
2. The impact-resistant and wear-resistant composite hopper lining unit structure as claimed in claim 1, wherein: the mounting structure layer (1) is a metal box body, the wear-resistant structure layer (2) is a ceramic plate, and the buffer structure layer (3) is an elastic structure layer formed by condensing a composite adhesive; the ceramic plate is placed in the middle in the metal box body, the composite adhesive is filled in gaps of all the combining surfaces of the ceramic plate and the metal box body, and the upper surface of the ceramic plate is flush with the port surface of the metal box body.
3. The impact-resistant and wear-resistant composite hopper lining unit structure as claimed in claim 2, wherein: the locking structure (41) is of a conical steel structure, and the small diameter end of the locking structure is fixedly connected to the center of the bottom surface of the metal box body; the part of the locking hole (21) matched with the locking structure (41) is a conical hole.
4. A composite hopper liner unit structure as claimed in claim 3 wherein: the inner end part of the locking hole (21) is the conical hole, and the outer end part of the locking hole (21) is a cylindrical hole; a circular ceramic cover (5) is arranged in the cylindrical hole in the middle, and the upper end surface of the circular ceramic cover (5) is flush with the upper end surface of the wear-resistant structural layer (2); the gap between the circular ceramic cover (5) and the cylindrical hole and the locking structure (41) is filled with the composite adhesive.
5. The impact-resistant and wear-resistant composite hopper lining unit structure as claimed in claim 4, wherein: the taper of the conical hole is 2-5 degrees.
6. The method for preparing the impact-resistant and wear-resistant composite hopper lining unit structure according to any one of claims 1 to 5, which is characterized by comprising the following steps:
step one, stamping a steel plate to form a metal box body;
step two, carrying out sand blasting treatment on the inner wall surface of the metal box body;
step three, uniformly coating the composite adhesive on the bonding surface of the ceramic plate, then loading the ceramic plate into a metal box body, and tightly pressing the ceramic plate to ensure that the composite adhesive overflows from a gap between the ceramic plate and a frame of the metal box body;
step four, after the composite adhesive is solidified for 60-90min, placing the locking structure (41) into the locking hole (21) and attaching the locking structure (41) with the conical hole at the inner end part of the locking hole, and then welding the locking structure (41) at the bottom of the metal box body;
step five, uniformly coating the ceramic cover with a composite adhesive, and placing the ceramic cover into the locking holes (21) to be mounted on the top of the locking structure (41);
and step six, after the composite adhesive is solidified, the preparation of the composite hopper lining unit structure is completed.
7. The method for preparing the impact-resistant and wear-resistant composite hopper lining unit structure as claimed in claim 6, wherein the method comprises the following steps: the composite adhesive is formed by uniformly mixing A, B components and A, B components, wherein the mixing mass ratio of the two components is 1:1.
8. The method for preparing the impact-resistant and wear-resistant composite hopper lining unit structure as claimed in claim 7, wherein the method comprises the following steps: the component A is acrylic acid modified epoxy or epoxy resin; the component B is modified amine or hardener.
9. The method for preparing the impact-resistant and wear-resistant composite hopper lining unit structure as claimed in claim 8, wherein the method comprises the following steps: the ceramic plate is made of aluminum oxide or zirconium oxide.
CN202311381291.9A 2023-10-24 2023-10-24 Impact-resistant and wear-resistant composite hopper lining unit structure and preparation method thereof Pending CN117301653A (en)

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