CN208280348U - A kind of shell aggregate film space sound absorbing member for taking into account sound absorption - Google Patents

Abstract

A kind of shell aggregate film space sound absorbing member for taking into account sound absorption, is related to sound absorbing member.Equipped with surface layer, adhesive layer, cavity, absorbent treatment；The surface layer is shell aggregate film surface layer, and surface layer is attached on adhesive layer, and cavity is located at the behind of adhesive layer, fills absorbent treatment in the cavity.Shell aggregate slurries can be sprayed on hollow out adhesive layer by spray gun and form shell aggregate sound absorption film by the surface layer.The cavity inside of surface layer behind fills the mineral wool of all kinds of bulk density or rock wool forms absorbent treatment, to adjust and improve the Sound absorbing spectrum characteristic of shell aggregate film sqound absorption construction.The thickness of adhesive layer, cavity and absorbent treatment is optimized according to actual acoustic design measuring and calculating.By changing bulk density, the thickness of the corresponding mineral wool of absorbent treatment or rock wool, the Sound absorbing spectrum characteristic of adjustable shell aggregate film configuration.

Description

A kind of shell aggregate film space sound absorbing member for taking into account sound absorption

Technical field

The utility model relates to sound absorbing members, more particularly, to a kind of shell aggregate film space sound absorption structure for taking into account sound absorption Part.

Background technique

Traditional film sound absorbing material is the various flexible fabrics of similar artificial leather, leather and chemical fibre class, due to weatherability Poor, they are often only used for interior.Shell aggregate film sqound absorption construction due to material use conch meal, lignin fibre with And the materials such as cement, therefore there is good weatherability.Shell aggregate film sqound absorption construction in addition to for music hall, theatre, Other than the places place such as cinema, Conference Hall, the outdoor environments such as road noise barrier can also be widely used in.Shell aggregate film Sqound absorption construction can be attached in all kinds of hollow out surface layers.Shell aggregate film acoustic tile can be made by being attached on hollow brick.Pass through It adjusts the thickness of film, proportion, hollow out surface layer rear cavity thickness and can be adjusted in materials such as surface layer filling glass cotton, rock wools The spectral characteristic of whole shell aggregate film sqound absorption construction sound absorption.

Chinese patent CN102852238A discloses a kind of sound absorption pervasion component, it includes an at least metal shell, the gold Belong to shell one end to be fixedly connected with construction wall, and is also filled with sound absorption cotton in the metal shell inner cavity.Preferably, the gold Belong to and is also covered with sound absorption lining cloth in inner walls.Described metal shell one end is fixedly connected with the second keel, second keel It is fixedly connected through the first keel with construction wall.The metal shell is mainly made of perforated metal panel.The utility model has Fire prevention, environmental protection, the advantages that being not easy to deform, and construct that convenient, installation is firm, easy to maintenance can carry out batch production, integrated Production installation, reduces human cost, shortens construction period, improves quality.Also, the size of the invention can also be according to diffusion frequency range It needs and appropriate adjustment.

Chinese patent CN201593251U discloses a kind of improved wall acoustic treatment diffsorber, is mainly imitated by reflection Several units of the different densities material composition of fruit, each unit shape are gengon, and part of unit is using reflexive Material pastes surface and forms reflecting surface, and arbitrary arrangement combination is pasted together or is pasted onto each unit in the same plane On bottom plate, diffusing sound absorbent is formed, is wrapped up in the diffusing sound absorbent periphery using the cloth of sound transparency.

Chinese patent CN105541375A discloses a kind of high-intensitive sound absorbing plate, it is characterised in that by the group of following parts by weight Be grouped as: 30~50 parts of cement, 20~40 parts of diatomite, 20~30 parts of flyash, 15~25 parts of clinker of heating, deposed molecular sieve are urged 10~20 parts of agent, 12~18 parts of conch meal, 10~15 parts of plant fiber, 5~10 parts of amylopectin, 3~6 parts of waterproofing agent, hair 1~3 part of infusion, 12~21 parts of water.The utility model selects porous light filler, diatomite, catalyst of deposed molecular sieve, fine coal Ash, heating clinker, conch meal, it is light, hole is abundant, from a wealth of sources, anti-corrosion is moisture-proof, in addition, porous material is compound with foaming agent It uses, substantially increases the acoustic absorptivity of plate.The high-intensitive sound absorbing plate that the utility model provides is at low cost, manufacture craft letter Single, compression strength is big, and acoustic absorptivity height is light, and heat preservation, processing performance is good, and anti-corrosion is moisture-proof, antibacterial environmental protection.

Chinese patent CN106574095A discloses a kind of composite sound-absorbing material and preparation method thereof and purposes.Composite sound absorbing material Material includes macromolecule layer and the layer of sand at the top of the macromolecule layer, and preparation method simple process is convenient for the seamless dress of large area Decorations construction；Wherein macromolecule layer mainly absorbs medium-high frequency sound, and layer of sand can be with full-frequency sound absorption；The utility model composite sound-absorbing material Under the premise of sufficiently maintaining the sound absorbing performance of macromolecule layer and layer of sand itself, better sound absorption effect can be played；In addition, The utility model composite sound-absorbing material uses environment-friendly materials, does not discharge hazardous substances, complies fully with the correlation environmental protection mark of country Standard is a kind of environmentally protective sound absorption product；Composite sound-absorbing material with respect to Advances in Sound Absorption Polymers for, outside layer of sand be cannot Burning, there is better fire protecting performance；Composite sound-absorbing material has both sound absorption well, heat preservation, thermal insulation, and physical property is steady It is fixed, it is not easy the influence of shrinkage temperature humidity, can be used for a long time.

Chinese patent CN106495738A discloses a kind of ceramic sound-absorbing material and preparation method thereof and purposes.The utility model Ceramic sound-absorbing material is a kind of using being mainly prepared using corundum, silicon carbide, cordierite, silicate, auxiliary agent and foaming agent Phase type sound-absorbing porous material, fire prevention, weather-proof, physical and chemical performance is excellent, while sufficiently meeting sound absorption and requiring with sound insulation, can Farthest solve the problem of noise pollution in production and living, and low-carbon environment-friendly.The preparation method work of ceramic sound-absorbing material Skill is simple, at low cost, and the used time is short, easy to implement.Ceramic sound-absorbing material can be used as sound absorbent for building, be easy to construct, sound absorption It is that performance is good, and intensity is high, prevents fires, is moisture-proof, freeze proof, ageing-resistant, resistant to chemical etching, can be used for a long time, also without any organic Volatile matter is a kind of environmentally protective sound absorption and insulation material.Porcelain sound-absorbing material, which is characterized in that the ceramic sound-absorbing material is main It is prepared by the raw material of following mass fraction: 20~30 parts of corundum, 20~30 parts of silicon carbide, 20~30 parts of cordierite, silicic acid 5~10 parts of salt, 5~10 parts of auxiliary agent and 1~2 part of foaming agent；Preferably, the ceramic sound-absorbing material is mainly by following mass fraction Raw material be prepared: 20~25 parts of corundum, 20~25 parts of silicon carbide, 25~30 parts of cordierite, 7~10 parts of silicate, auxiliary agent 5 ~7 parts and 1~2 part of foaming agent；It is further preferred that the ceramic sound-absorbing material is mainly prepared by the raw material of following mass fraction It obtains: 20 parts of corundum, 20 parts of silicon carbide, 30 parts of cordierite, 10 parts of silicate, 5 parts of auxiliary agent and 2 parts of foaming agent.

Chinese patent CN106242634A discloses a kind of composite sound-absorbing material and preparation method thereof, and grass stalk is put into 2% 30min is impregnated in lime water and carries out demoulding processing, the wax coat on weeding stalk surface is removed, so that the cohesive force between diatom ooze Reinforce, the grass stalk for removing surface wax is put into grass chopper and is cut into 40~100mm length, which possesses unique " molecular sieve " structure, porosity are up to 90%, not only have environmental protection, purification air, breathing damping, it is fire-retardant, at low cost and add The convenient plurality of advantages of work, and have very strong reduction noise result, can effectively absorb the high frequency segment being harmful to the human body, Decaying low frequency noise shortens the reverberation time, has quite wide application prospect.A kind of preparation method of composite sound-absorbing material, It is characterized in that, grass stalk is put into 2% lime water by (1) impregnates 30min progress demoulding processing, the wax on weeding stalk surface is removed Matter layer, so that the cohesive force between diatom ooze is reinforced；(2) the grass stalk for removing surface wax is put into grass chopper and is cut into 40mm -100mm length；(3) diatom ooze, grass stalk and water are mixed by the mass ratio of 1 ︰, 0.2 ︰ 0.3, diatom ooze exists later It is combined under hydration with grass stalk, 1% polyvinyl alcohol adhesive, 1% triethanolamine reinforcing agent is then added, in mixing and blending machine In stir after at leather hard mixture；(4) mixture of leather hard is paved in mold box, passes through biography It send equipment to be sent in press to pressurize, applies different pressure with type depending on the application, unit pressure is 1.5~2.0MPa, it It the mixture of densification leather hard and is fastened afterwards with locking device, maintains to complete diatom ooze in a compressed state and what grass obstructed consolidates Knot；(5) in order to shorten firm time, the mixture of locking will be placed in temperature and harden in 70~90 DEG C of reinforcing curing kilns, when Between for 18~then mould unloading for 24 hours, then be dried for natural curing 7 days under keeping warm mode, drying temperature is 50~70 DEG C, makes to mix The moisture content for closing material is 5% ± 2%, to reduce the use shrinkage of mixture, improves the stability of its size, is then cut out Side shaping and sanding processing are to ensure that mixture meets the size and thickness requirement of user.

The method that Chinese patent CN106574095A discloses a kind of sound absorption fire-resistant heat insulating material of light weight and manufactures it, should be every Hot material includes for providing the adhesive, expanded graphite and swellable clays of adhesiveness, wherein swellable clays have with packet The distance between layer of the honeycomb style of aqueous molecule and wherein clay expands 20 to 50 times of layer structure by heating, and Swellable clays have the partial size between 50 μm and 200 μm, and wherein, swelling of the heat-barrier material relative to 100 parts by weight Property clay include 10 to 100 parts by weight expanded graphite.Due to having used the swellable clays of expanded graphite and honeycomb, institute Sound absorbing performance is enhanced with the heat-barrier material of the utility model, there is excellent thermal insulation, fire resistance and anti-flammability, and can be Do not have to manufacture in the case where roasting process, to have simple process and reduce the unit cost of production.

Chinese patent CN106167388A discloses a kind of sound absorption mortar and sound-absorbing material.The sound absorption mortar is by weight Meter, is mainly prepared from the following raw materials: 70~80 parts of sand grains, 6~12 parts of silicate, 12~20 parts of water.The sound-absorbing material is by institute Belong to sound absorption mortar to be prepared.The seamless decoration of large area can be achieved, environmental-protecting performance is preferable.Pass through this manufacture craft, sand grains partial size Can accurately regulate and control with molding mode, and then the size and arrangement mode of internal void has been determined, thus produce it is various not With the silica sand of flow resistance and sound absorption characteristics plastering slurry, there is preferable assimilation effect to low frequency and high frequency noise, and can substantially subtract The reflex of weak sound wave also has anti-flammability in addition, the sound-absorbing material intensity is high.

Chinese patent CN106652991A discloses a kind of sound absorption superstructure, including a regular hexagon air-shed 5, positive six side The peripheral first layer of shape air-shed 56 regular hexagon unit cells (6,7,8,9,10 and 11), 5 periphery second of regular hexagon air-shed 12 incomplete regular hexagon unit cells (12,13,14,15,16,17,18,19,20,21,22 and 23) of layer.All unit cells Helmholtz resonant cavity passes through resonance short tube and 4 connection of external sound field.The sound absorption superstructure of the utility model has single in low frequency Pole resonance and bipolar covibration, wherein monopole resonance can produce negative dynamic volume modulus, and bipolar resonance can produce negative dynamic Mass density.Negative dynamic volume modulus and negative dynamic mass density will lead to acoustic energy and is gathered among sound absorption superstructure, in turn Sound wave continuation is blocked to propagate forward.Therefore, which can understand shape between monopole resonant frequency and bipolar resonant frequency At a broad-band gap, the propagation of sound wave is blocked by way of resonance sound-absorbing.

Chinese patent CN106601223A discloses a kind of face and realizes the adjustable device of sound absorbing performance in magnetic rheology effect, including Sound absorption unit, direct current generating unit and the current control unit being sequentially connected in series；Sound absorption unit includes being equipped with closed cavity Perforated plate, the magnetorheological fluid being filled in closed cavity and the excitation coil being looped around outside closed cavity；Perforated plate is equipped with The sound-absorbing hole being looped around around closed cavity；Perforated plate is equipped with the back cavity of connection sound-absorbing hole after plate.Magnetorheological fluid is filled out It fills in the closed cavity in perforated plate, the excitation coil being looped around outside closed cavity is led to by direct current generating unit Electricity, by current control unit in excitation coil size of current and direction control, thus control excitation coil generation Magnetic field size and direction, and then change the rheological equationms of state such as apparent viscosity of magnetorheological fluid, it is final to realize to the compound suction of perforated plate The regulation of acoustic form sound absorbing performance.

Chinese patent CN106436598A discloses a kind of sound absorption planting pot, including basin body (1), which includes circumferential surface (2) and bottom surface (3), circumferential surface (2) encloses bottom surface (3) and forms the cavity (4) for being used for planting, the entirety of the circumferential surface (2) or Person part is made of sound-absorbing material；The circumferential surface (2) includes internal layer (21) and outer layer (22), internal layer (21) and outer layer (22) it Between formed non-close cavity (23).After the sound absorption planting pot is placed on existing or improved sound barrier, sound-screen can be made Barrier also has both sqouynd absorption lowering noise function while obtaining greening function, to mitigate noise to the shadow of highway, railway surrounding resident It rings, overcomes the deficiency of existing plastics planting pot.

Summary of the invention

The purpose of this utility model is that marine product leftover bits and pieces shell recycling there are aiming at the problem that, one kind is provided and is taken into account The shell aggregate film space sound absorbing member of sound absorption.

The utility model is equipped with surface layer, adhesive layer, cavity, absorbent treatment；The surface layer is shell aggregate film surface layer, surface layer It is attached on adhesive layer, cavity is located at the behind of adhesive layer, fills absorbent treatment in the cavity.

Spraying slurry can be used in the surface layer, and the thickness of surface layer can be 1~100mm, preferably 50mm.

Metal net layer or other hollow-out layers can be used in the adhesive layer, and the thickness of adhesive layer can be 1~30mm, preferably 5mm； Bamboo and wood, metal, gypsum, plastic or other material can be used in the material of adhesive layer；The cavity thickness of the hollow-out layer can for 20~ 80mm, preferably 50mm.

The thickness of the cavity can be 20~100mm, preferably 30mm.

The absorbent treatment can be one of porous material layers such as mineral wool layer, rock wool layer, and the thickness of absorbent treatment can be 20 ~80mm, preferably 40mm.

It is thin that shell aggregate slurries can be sprayed on formation shell aggregate sound absorption on hollow out adhesive layer by spray gun by the surface layer Film.The cavity inside of surface layer behind can fill the mineral wool of all kinds of bulk density or rock wool forms absorbent treatment, to adjust and to improve The Sound absorbing spectrum characteristic of shell aggregate film sqound absorption construction.The thickness of adhesive layer, cavity and absorbent treatment can be according to actual acoustic Design measuring and calculating optimizes.By changing bulk density, the thickness of the corresponding mineral wool of absorbent treatment or rock wool, adjustable shell aggregate The Sound absorbing spectrum characteristic of film configuration.

The utility model uses shell aggregate as main material, adds suitable additive and forms the spraying slurry for being suitable for working continuously Material, the Sound absorbing spectrum of the adjustable shell aggregate film sqound absorption construction of the thickness of absorbent treatment (i.e. porous material layer) form and meet There is the shell aggregate film sqound absorption construction of specific Sound absorbing spectrum demand.

The utility model can be attached to formation shell aggregate film acoustic tile on all kinds of hollow bricks, be suitable for batch production.

The shell aggregate sound absorption spray-coated film raw material sources of the utility model are abundant, technique relative ease, production equipment It is of less demanding, it is well suited for medium-sized and small enterprises production.Research achievement conversion can directly be carried out the work of sound absorption spray-coated film by manufacturer Skill equipment Design gradually forms the production chain of shell regeneration and shell aggregate sound absorption spray-coated film series of products.Due to Use shell leftover bits and pieces that conch meal is made as aggregate, is expected to consume a considerable number of shell rubbish every year, turn waste into wealth.This A road Tiao Xin will be explored for shell recycling by lifting, and realize municipal refuse minimizing, while can save large amounts of correlation Garbage disposal expense meets the fundamental policy of energy-saving and emission-reduction.

The utility model can be set in metope, ceiling and other planes, flexible arrangement multiplicity.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model embodiment.

Fig. 2 is the use state diagram of the utility model embodiment.

Specific embodiment

Following embodiment will be further described the utility model in conjunction with attached drawing.

Referring to Fig. 1, the utility model embodiment is equipped with surface layer 1, adhesive layer 2, cavity 3 and absorbent treatment 4；The surface layer 1 is Shell aggregate film surface layer, surface layer 1 are attached on adhesive layer 2, and cavity 3 is located at the behind of adhesive layer 2, filling in the cavity 3 Absorbent treatment 4.

The surface layer 1 use spraying slurry, surface layer 1 with a thickness of 5~100mm.

The adhesive layer 2 uses metal net layer or other hollow-out layers, the material of adhesive layer 2 using bamboo and wood, metal, gypsum, Plastic or other material；The cavity thickness of the hollow-out layer is 20~80mm.

The absorbent treatment 4 is one of porous material layers such as mineral wool layer, rock wool layer.

The surface layer 1 is that shell aggregate slurries are sprayed on hollow out adhesive layer 2 by spray gun to form the sound absorption of shell aggregate Film.The mineral wool or rock wool that all kinds of bulk density can be filled inside the cavity 3 of surface layer behind form absorbent treatment 4, to adjust and Improve the Sound absorbing spectrum characteristic of shell aggregate film sqound absorption construction.The thickness of adhesive layer 2, cavity 3 and absorbent treatment 4 can be according to reality Acoustics design measuring and calculating in border optimizes.It is adjustable by changing bulk density, the thickness of the corresponding mineral wool of absorbent treatment 4 or rock wool The Sound absorbing spectrum characteristic of shell aggregate film configuration.

The adhesive layer 2 is made of hollow out construction the good organic fabric of metal mesh or durability；Hollow out adhesive layer 2 forms bone Frame grid support surface layer 1.Adhesive layer 2 reserves cavity 3 behind.Surface layer 1 forms sound absorption film by spraying method and is close to adhesive layer 2。

The surface layer 1 is tightly attached to 2 surface of adhesive layer.Lignin fibre, conch meal, thin can be used in the material of the surface layer 1 Sand, cement composition are suitable for the slurry of spraying.

Metal mesh, macromolecule organic fabric can be used in the material of the adhesive layer 2, is formed with some strength and durability Hollow grid.The adhesive layer 2 reserves cavity 3 behind, and 3 Thickness range of cavity is 20~100mm, preferably 30mm.

The porous materials such as mineral wool, rock wool can be filled in cavity 3 and form absorbent treatment 4 for the cavity 3.The mineral wool, mine Cotton, rock wool can outsourcing entrant sound tissue layer, can be excessive to avoid mineral wool, mineral wool, rock wool fibers.By the appearance for changing absorbent treatment 4 The thickness of weight, thickness and cavity 3, Sound absorbing spectrum characteristic that is adjustable and improving shell aggregate spray-coated film sqound absorption construction.

In Fig. 1, label 6 is lightgage steel joist.

Specific embodiment is given below.

Referring to fig. 2, adhesive layer (being not drawn into Fig. 2) is fixed on lightgage steel joist 6 by metal bead 5, lightgage steel joist 6 It is fixed on side wall by expansion bolt.By spraying process by lignin fibre, conch meal, fine sand, cement composition slurry Even application forms surface layer 1 on adhesive layer.Reserved cavity 3 is formed between adhesive layer and side wall.The cross section ruler of lightgage steel joist 6 Very little value range is 60mm.The longitudinal section size value range of lightgage steel joist 6 is 100mm.

The adhesive layer back side forms cavity 3, and 3 thickness of cavity can design measuring and calculating according to actual acoustic and optimize.The cavity With a thickness of 50mm.

In cavity 3 can using materials such as filling glass cotton, mineral wool, rock wools as absorbent treatment 4,4 thickness of absorbent treatment and side wall it Between cavity thickness according to actual acoustic design measuring and calculating optimize.Absorbent treatment 4 is with a thickness of 30mm.By changing cavity and sound absorption 4 thickness of layer are adjustable and improve the Sound absorbing spectrum characteristic of shell aggregate sound absorption film configuration.

Claims (10)

1. a kind of shell aggregate film space sound absorbing member for taking into account sound absorption, it is characterised in that be equipped with surface layer, adhesive layer, cavity, Absorbent treatment；The surface layer is shell aggregate film surface layer, and surface layer is attached on adhesive layer, and the adhesive layer is solid by metal bead It is scheduled on lightgage steel joist, the lightgage steel joist is fixed on side wall by expansion bolt；Cavity is located at the behind of adhesive layer, described Absorbent treatment is filled in cavity.

2. a kind of shell aggregate film space sound absorbing member for taking into account sound absorption as described in claim 1, it is characterised in that the face Layer with a thickness of 1~100mm.

3. a kind of shell aggregate film space sound absorbing member for taking into account sound absorption as claimed in claim 2, it is characterised in that the face Layer with a thickness of 50mm.

4. a kind of shell aggregate film space sound absorbing member for taking into account sound absorption as described in claim 1, it is characterised in that described attached Layer use metal net layer or hollow-out layer.

5. a kind of shell aggregate film space sound absorbing member for taking into account sound absorption as described in claim 1, it is characterised in that described attached Layer with a thickness of 1~30mm.

6. a kind of shell aggregate film space sound absorbing member for taking into account sound absorption as claimed in claim 5, it is characterised in that described attached Layer with a thickness of 5mm.

7. a kind of shell aggregate film space sound absorbing member for taking into account sound absorption as claimed in claim 4, it is characterised in that described to engrave The cavity thickness of dead level is 20~80mm.

8. a kind of shell aggregate film space sound absorbing member for taking into account sound absorption as claimed in claim 7, it is characterised in that described to engrave The cavity thickness of dead level is 50mm.

9. a kind of shell aggregate film space sound absorbing member for taking into account sound absorption as described in claim 1, it is characterised in that the sky Chamber with a thickness of 20~100mm, absorbent treatment with a thickness of 20~80mm.

10. a kind of shell aggregate film space sound absorbing member for taking into account sound absorption as claimed in claim 9, it is characterised in that the sky Chamber with a thickness of 30mm；The absorbent treatment with a thickness of 40mm.