19 results about "Composite liner" patented technology

This invention relates to the field of ball mill technology, specifically to a steel-rubber composite liner for a ball mill. It comprises multiple arc-shaped liner units circumferentially and evenly arranged on the inner wall of a rotating cylinder of a ball mill. Each arc-shaped liner unit includes a first arc-shaped plate fixedly disposed on the inner wall of the rotating cylinder, and a second arc-shaped plate rotatably connected to the first arc-shaped plate. A driving structure is provided between the first and second arc-shaped plates. When the arc-shaped liner unit rotates with the rotating cylinder to the lifting zone, the driving structure drives the second arc-shaped plate to deflect and tilt upwards relative to the first arc-shaped plate. The liner of this invention can automatically switch postures according to the operating conditions, forming a protrusion in the lifting zone to assist in lifting the steel balls, and retracting the protrusion in the impact zone to ensure effective impact of the steel balls on the material. This overcomes the technical contradiction of traditional fixed protruding liners being unable to simultaneously achieve both ball lifting and efficient impact.

This utility model discloses a composite liner for a bauxite ball mill, relating to the field of ball mill technology. It includes an outer connecting ring, with a mounting plate connected to the inner wall of the outer connecting ring. A buffer mechanism is provided between the outer connecting ring and the mounting plate. A modular system is provided on the side of the mounting plate away from the outer connecting ring. The modular system includes multiple ceramic liner plates that adhere to the surface of the mounting plate away from the outer connecting ring. All ceramic liner plates have an arc-shaped structure, and staggered protrusions are provided at both ends of each ceramic liner plate. A fastening mechanism is provided inside the outer connecting ring, the mounting plate, and the ceramic liner plates, and an expansion component is provided at the connection between the fastening mechanism and the ceramic liner plates. This utility model, through a series of structures, forms a multi-layered composite structure, which enhances the overall wear resistance, buffering, and noise reduction performance, facilitates individual replacement of worn areas, and prevents the overall installation from loosening.

The invention discloses an economical high-chromium cast iron alloy suitable for a composite lining plate of a large ball mill. The economical high-chromium cast iron alloy comprises the following chemical components in percentage by mass: 2.7-3.2 wt% of C, less than or equal to 0.8 wt% of Si, 0.4-0.8 wt% of Mn, 25-29 wt% of Cr, max 0.5 wt% of Mo, max 0.5 wt% of Cu, max 0.5 wt% of Ni, less than or equal to 0.05 wt% of P, less than or equal to 0.03 wt% of S and the balance of Fe and inevitable impurities. The alloy is of a martensite, blocky carbide and a small amount of retained austenite structure, and the blocky carbide is distributed in a matrix in a dispersed continuous net form, so that the hardness and wear resistance of the material are improved while certain impact toughness of the material is guaranteed, and the service life of the material is prolonged. And the manufactured high-chromium cast iron alloy is high in wear resistance, high in yield, stable in production process, long in service life and low in cost.

The present application belongs to the technical field of gathering and storage tank repair, and particularly relates to a storage tank wall reinforcing method and a composite material liner for reinforcing a storage tank wall, comprising: selecting a composite material liner with optimal performance parameter values from N different structures of composite material liners according to performance parameters, and recording the selected composite material liner as a selected composite material liner; the performance parameters include tensile strength and bending strength; the structure of the composite material liner comprises, from inside to outside, k1 layers of square cloth, k2 layers of four-axis cloth and k3 layers of carbon fiber cloth; if the difference between the wall thickness of the storage tank wall after being reinforced by the selected composite material liner and the minimum thickness of the storage tank wall is greater than or equal to L1, and L1>0, then the selected composite material liner is determined to be suitable for the storage tank wall; and the selected composite material liner is used to reinforce the storage tank wall to which the selected composite material liner is suitable. Thus, the present application solves the problem of high repair cost of the storage tank wall in the prior art.

The utility model discloses a composite lining plate structure of a ball mill, which is characterized by comprising a support plate, the bottom of the supporting mechanism is fixedly connected with the top of the supporting plate, the supporting mechanism comprises a first connector and a second connector, the right side of the first connector is movably connected with a plate assembly through a rotating shaft, and the right side of the plate assembly is fixedly connected with a gear ring. The strength and wear resistance of the lining plates can be improved by using the high-manganese steel lining plate, the alloy steel lining plate and the ceramic lining plate, the ball milling motor is started to drive the motor gear to rotate, meanwhile, the gear ring and the plate assembly are driven to rotate to grind internal materials, and the inserting plate is pressed to drive the inserting plate and the sliding block to move downwards. And then a sliding block, a sliding groove, a second rectangular plate and a plate cover are driven by a rotating insertion plate to rotate through a rotating shaft, and then a composite part can be detached, so that the practicability of the composite lining plate of the ball mill is improved.

The invention discloses a flow self-adjusting composite gasket device for a gas pipeline, which comprises a gas supply joint, a composite gasket and a gas outlet joint, the gas supply joint is of a tubular structure, a first gas path is arranged in the gas supply joint, an external thread is arranged at a gas outlet end, gas flows in from the left side through the first gas path and flows out from the right side through the first gas path, and the composite gasket is of an annular sandwich structure. Rigid layers are arranged on the two sides, a flexible layer is arranged in the middle, a round hole is formed in the middle, the gas outlet connector is of a tubular structure, a cavity and a second gas path are arranged in the gas outlet connector, the cavity is communicated with the second gas path, an internal thread is arranged at the gas inlet end, and gas flows in from the left side and flows out from the right side through the cavity and the second gas path; and the composite gasket is arranged in the cavity of the air outlet joint. The flow self-adjusting composite liner device can spontaneously limit the increase of the gas flow, has very high applicability and wide universality, is very easy to integrate in the current production line for manufacturing large ships and marine equipment, and is very low in cost and very high in benefit.

The invention relates to a composite lining material for an ultra-clean container, a preparation method of the composite lining material and the ultra-clean container, and relates to the technical field of ultra-clean containers. The composite lining material sequentially comprises a nanotube enhancement layer and a buffer layer from outside to inside, and can also comprise a conductive barrier layer and a hydrophobic layer. The nanotube reinforcing layer takes vinyl modified perfluoroalkoxy resin containing 2% of vinyl side chains as a matrix and hydroxylated boron nitride nanotubes as a reinforcing phase, and a repairing agent is packaged in the nanotubes; the buffer layer is composed of specific fiber bundles, ionomers and the like, and the concentration of the fluorine element changes in a gradient mode. The preparation method comprises the steps of resin preparation, nanotube treatment, construction of each layer and the like. The composite lining material has excellent mechanical property, corrosion resistance, self-repairability, conductive barrier property and super-hydrophobic property, and can meet strict requirements of ultra-clean containers on storage and transportation of wet electronic chemicals.

This invention provides a polylactic acid (PLA) multilayer composite active liner and its preparation method, comprising: synthesizing LDHs@CDs in situ using a one-pot method with Spartina alterniflora extract, metal salts, and urea; and constructing the outer layer of the active liner (LDHs@CDs / PVA) with a PVA substrate via electrospinning; simultaneously, constructing the intermediate active layer (MPN / PVA) of the active liner using MPN particles and a PVA substrate via electrospinning; and finally forming a PLA multilayer active composite liner based on a porous PLA base film. LDHs@CDs combine the structural stability of LDHs with the surface activity advantages of SA-CDs, which helps improve the material's dispersibility, interfacial interaction ability, and functional component loading efficiency; while MPN has a continuous and dense network structure, exhibiting good environmental responsiveness, bioactivity, and interfacial synergistic potential. Therefore, introducing LDHs@CDs and MPN into the preservation liner system endows the material with multiple functions such as moisture regulation, antibacterial, antioxidant, and responsive regulation, while enhancing its practical application value in fresh food preservation.

The utility model discloses an edge folding device for a composite lining plate, which comprises a gland positioned on the bottom surface, a supporting sleeve is mounted above the gland, a locking sleeve is sleeved outside the supporting sleeve, and an annular conical groove for accommodating a conical sleeve of the rolled lining plate is formed between the supporting sleeve and the locking sleeve; the top end of the locking sleeve is higher than the supporting sleeve, and the inner wall face, located above the supporting sleeve, of the locking sleeve is a big-end-up forming conical face. The device further comprises an edge folding sleeve, and the edge folding conical surface of the outer wall surface of the edge folding sleeve exerts force on the rolled lining plate conical sleeve from inside to outside, so that the upper portion of the rolled lining plate conical sleeve is made to face the forming conical surface to be attached to the forming edge folding. The rolled lining plate taper sleeve is placed in the annular conical groove and clamped by the supporting sleeve and the locking sleeve, and the edge folding sleeve moves downwards to apply force to the upper portion of the rolled lining plate taper sleeve, so that the edge of the upper portion of the rolled lining plate taper sleeve is turned outwards to form a folded edge; the whole structure is compact and simple, operation is convenient, forming is stable, and practicability is good.

This invention provides a rubber-ceramic core-shell reinforced manganese steel-based composite liner, comprising a manganese steel matrix and a plurality of rubber-ceramic core-shell reinforcing bodies embedded in the manganese steel matrix. Each rubber-ceramic core-shell reinforcing body consists of a ceramic shell and a rubber core encasing the ceramic shell, with a gradient transition between the rubber core and the ceramic shell, and also a gradient transition between the ceramic shell and the adjacent manganese steel matrix. This invention also provides a method for preparing the above-mentioned rubber-ceramic core-shell reinforced manganese steel-based composite liner and its application as a liner material for a semi-autogenous grinding mill feed trolley. The liner of this invention combines the properties of manganese steel, ceramic, and rubber, fully utilizing the wear resistance of ceramic, the impact resistance of rubber, and the work hardening effect of manganese steel, significantly improving the service life of the liner.

This invention belongs to the field of small solid rocket motor technology, specifically disclosing a method for replacing and repairing the composite liner of the converging and straight sections of a long-tail nozzle. First, the composite liner of the converging and straight sections of the long-tail nozzle is removed without damaging the metal shell. After verifying that the metal shell's performance meets the usage requirements through dimensional, hydraulic, and weld inspections, the metal shell is bonded to the prepared composite liner and then capped and bonded to the small port of the long-tail nozzle. Finally, the performance of the replaced and repaired long-tail nozzle is tested to ensure that the repaired product meets the usage requirements. This method preserves the original metal shell of the long-tail nozzle, avoiding the need for complete replacement of the entire long-tail nozzle. It significantly reduces costs during the repair process. By adjusting the mating dimensions of the composite liner of the converging and straight sections, effective use of diffuser sections with different mating dimensions is achieved, realizing efficient and low-cost replacement and repair of the composite liner of the converging and straight sections of the long-tail nozzle.

The invention discloses an impurity source control method for preparing high-purity sponge zirconium through magnesiothermic reduction, and relates to the field of sponge zirconium preparation.The method adopts a reduction tank inner container which is of a gradient composite structure and sequentially composed of an outer supporting layer, a middle transition layer and an inner functional layer from outside to inside, and the method comprises the following steps that S1, the inner container is prepared; s2, charging and preheating; s3, magnesiothermic reduction reaction; and S4, post-processing. The gradient composite inner container composed of the outer 301 stainless steel supporting layer, the middle Fe-Cr-Al-Y porous alloy transition layer and the inner 430 stainless steel functional layer is adopted, and specific preheating and reaction processes are cooperated, so that active interception and source fixation of impurity elements are achieved.

The utility model belongs to the technical field of mills, and provides a composite lining plate for a mill. The lining plate is of an integrated compression molding structure and comprises a main body and a coating layer which are matched with each other, and the main body comprises a wear-resistant steel plate, a basic framework and a buffer layer; the basic framework, the buffer layer and the wear-resistant steel plate are sequentially overlapped from bottom to top and are mutually fixed; the coating layer is coated and fixed on other surfaces except the upper surface in the main body; wherein the wear-resistant steel plate is of a stepped structure, and the surface, matched with the buffer layer, of the wear-resistant steel plate is a stepped surface. The utility model has the advantages of low installation difficulty, long service life and low energy consumption.

The utility model discloses a metal ceramic composite lining plate which comprises a lining plate body, a connecting assembly is arranged outside the lining plate body, the connecting assembly comprises two sleeving grooves formed in the outer walls of the two sides of the lining plate body, and the two sleeving grooves are both arranged in an arc shape and are arranged in a staggered mode. The outer walls of the two sides of the lining plate body are each provided with an arc-shaped face, the radius of each arc-shaped face is smaller than that of the corresponding sleeving groove, a sleeving hole is formed in the inner wall of the top of one sleeving groove, an inserting rod matched with the sleeving hole is coaxially fixed to the inner wall of the bottom of the other sleeving groove, and the end of the inserting rod is arranged to be a round head. According to the lining plate, by arranging the connecting assembly, the lining plate body can be supported and connected, meanwhile, the lining plate has the capacity of being flexibly adjusted in the horizontal direction, the lining plate is made to meet the installation requirement of equipment with an arc face, and the universal adaptability and installation flexibility of the lining plate are remarkably improved.

Disclosed is a glass fibre reinforced composite liner for the trenchless repair of underground pipelines such as drinking water and wastewater pipelines. The primary and secondary glass fibre fabric layers are interwoven and folded into a pipe shape by an envelope folding technique for a seamless and jointless roll without the need for seams, and a continuous curable tubular surface is provided by the homogeneous wetting of the two layers with the resin.

The invention provides an ecological anti-seepage composite liner material as well as a preparation method and application thereof, and belongs to the technical field of civil and environmental engineering. The attapulgite and the bentonite are compounded to form the ecological anti-seepage composite liner material by virtue of the high adsorption capacity and stability of the attapulgite, and the attapulgite-bentonite composite liner material combines the characteristics of two natural clay minerals, shows excellent comprehensive performance in environmental geotechnical engineering, and can be used for preparing the ecological anti-seepage composite liner material. The bentonite liner material and the bentonite liner material are compounded to form a rod crystal-lamellar heterostructure which has high adsorbability, good hydration expansibility and certain mechanical strength, the limitation of a traditional bentonite liner material can be overcome when the bentonite liner material faces salt erosion, and meanwhile, a more economical and environment-friendly alternative scheme is provided.

The invention provides a special forming device for low-basis-weight surface layer and bottom layer composite liner cardboard paper, and relates to the technical field of liner cardboard paper production and forming. An arch-shaped front supporting frame is installed at the top of the supporting base, a lower rotating roller and an upper rotating roller are rotationally connected into the arch-shaped front supporting frame, the bottom side of the bottom-layer paper makes contact with the lower rotating roller, and the bottom side of the surface-layer paper makes contact with the upper rotating roller. A transverse spray pipe is installed in the arch-shaped front supporting frame and located between the lower rotating roller and the upper rotating roller. The compression amount of the spring B is changed according to the forming requirements of the liner cardboard paper with different thicknesses, so that the pressure applied in the bonding forming process of the bottom layer paper and the surface layer paper is flexibly adjusted, and the forming requirements of the liner cardboard paper with different thicknesses are better met. The problem that in practical application of an existing forming device special for the fine dried noodle cardboard paper, the bonding forming pressure applied in the forming device is a fixed value, and only the forming requirement of the fine dried noodle cardboard paper with the single thickness can be met is solved.

A column nail composite lining plate of a cone crusher for the aggregate industry belongs to the technical field of lining plates of cone crushers and comprises a fixed cone lining plate, a movable cone lining plate, a column nail A, a column nail B, a column nail C and a column nail D. The fixed cone lining plate is arranged on the upper portion of the interior of the crusher, and the movable cone lining plate is arranged below the fixed cone lining plate. An inner cavity of the fixed cone lining plate is matched with the outer wall of the movable cone lining plate to form a crushing cavity, aggregate is extruded and impacted by the movable cone lining plate and the fixed cone lining plate in the crushing cavity, so that crushing is achieved, column nails A and column nails B are distributed in a high-abrasion area of the fixed cone lining plate, and column nails C and column nails D are distributed in a high-abrasion area of the movable cone lining plate. By optimizing the structure of the crushing cavity, large materials can pass through the crushing cavity, and material blockage is avoided; the wear resistance of the lining plate is improved by selecting high-manganese steel; the hard alloy column nails are densely and uniformly distributed in the high-abrasion area of the lining plate and bear impact and abrasion of materials together with a base body during working, so that the service life of the lining plate is prolonged by 30%.

The present application belongs to the field of environmental engineering and electrical detection technology, and particularly relates to a composite liner pool portable electrical leakage detection and positioning method and system. The method is characterized in that at least three reference electrodes are arranged outside the pool to form a reference electrode group, an excitation electrode is arranged in the pool and electrically isolated from the steel mesh, a low-frequency alternating current / coded constant current injection and synchronous detection are used to extract the effective response, a robust baseline and dispersion are constructed based on the reference electrode group, a normalized leakage index is calculated to suppress environmental electrical fluctuations, and the leakage point positioning is achieved through the intersection of abnormal areas formed by double-source excitation switching or weighted inversion. The present application does not require pre-embedded electrode arrays, and can complete "detection + positioning" in a single inspection, effectively reducing the influence of steel bypass conduction, power frequency interference and environmental fluctuations, improving the efficiency and reliability of liner leakage investigation in complex scenarios, and being suitable for the normalization integrity inspection of industrial pool bodies such as wastewater pools and accident pools.