CN112502375A - Ceramsite composite sound absorption plate and sound absorption method thereof - Google Patents

Ceramsite composite sound absorption plate and sound absorption method thereof Download PDF

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Publication number
CN112502375A
CN112502375A CN202011457561.6A CN202011457561A CN112502375A CN 112502375 A CN112502375 A CN 112502375A CN 202011457561 A CN202011457561 A CN 202011457561A CN 112502375 A CN112502375 A CN 112502375A
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China
Prior art keywords
ceramsite
layer
noise
shell
sound insulation
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CN202011457561.6A
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Chinese (zh)
Inventor
於文霞
李博识
谭江
殷祥芬
黄国锋
陈焕荣
孙平
赵津
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Jiangsu Yuanxing Group Construction Co ltd
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Jiangsu Yuanxing Group Construction Co ltd
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Priority to CN202011457561.6A priority Critical patent/CN112502375A/en
Publication of CN112502375A publication Critical patent/CN112502375A/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0875—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having a basic insulating layer and at least one covering layer
    • 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
    • B32B3/30—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 formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/16—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer formed of particles, e.g. chips, powder or granules
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0889—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections
    • 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
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/107—Ceramic
    • 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
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • 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
    • B32B2307/70—Other properties
    • B32B2307/712—Weather resistant
    • 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
    • B32B2607/00—Walls, panels
    • B32B2607/02—Wall papers, wall coverings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
    • E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
    • E04F2290/041—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

The invention discloses a ceramsite composite sound absorption plate and a sound absorption method thereof, which relate to the field of sound absorption plates and comprise the following steps: the sound insulation structure comprises a shell, a ceramsite layer and a sound insulation layer, wherein the ceramsite layer and the sound insulation layer are arranged in the shell, noise can sequentially penetrate through the ceramsite layer and the sound insulation layer, and a cavity is formed between the sound insulation layer and the inner wall of the shell; according to the invention, the cavity is formed between the sound insulation layer and the inner wall of the shell, a small part of noise enters the cavity after passing through the ceramsite layer and the sound insulation layer and repeatedly vibrates in the cavity until the attenuation is zero, so that the sound absorption and sound insulation effects are improved, the ceramsite layer is arranged to replace fiber materials such as rock wool and glass wool, the strength of the structure is improved, the structure is not easy to damage and good in weather resistance, the function cannot be reduced within the service life, and after the pottery is scrapped, the natural degradation cannot cause solid waste pollution.

Description

Ceramsite composite sound absorption plate and sound absorption method thereof
Technical Field
The invention relates to the field of sound absorption plates, in particular to a ceramsite composite sound absorption plate and a sound absorption method thereof.
Background
The sound environment is the important component of building environment, and in the building, people need the environment quiet, the listening is clear, and the sound effect in the room is very big with the building material's on top, wall, ground acoustic characteristic relation, when indoor closely knit stereophonic sound reflective material such as the use concrete in a large number, gypsum board, glass, metal sheet, stone material, ceramic tile, because the reverberation superposition effect of sound reflection, can cause indoor sound noisy moreover, contain the confusion.
Generally, the sound absorption decorative plate is made of a sound absorption material with a certain sound absorption coefficient, the sound absorption material is a reflection material with the sound absorption coefficient NRC of less than 0.2, the sound absorption material with the sound absorption coefficient NRC of more than 0.2 is considered as the sound absorption material, and the sound absorption coefficient reflects the sound absorption capacity of the sound absorption material; the traditional sound absorption materials generally comprise mineral wool boards, wood wool boards, glass fiber cotton, rock wool, microporous sponge, polyester fiber boards, perforated metal boards, perforated wood boards and the like, however, the defects of the mineral fiber sound absorption materials are as follows: the material has poor strength, poor aesthetic degree, fiber dust and the like, is easy to deform, crack or peel off after long-term use, and the filler cannot be naturally degraded when being scrapped, thereby causing solid waste pollution to the surrounding environment.
The ceramsite fired by using the argil is a granular material with a large number of micropores naturally formed inside in the manufacturing process, and the abundant micropores inside the ceramsite have good sound absorption effect.
The invention discloses a cement ceramsite acoustic board, which has the application number of ' 201820816164.5 ' and is named as a cement ceramsite acoustic board ', and the cement ceramsite acoustic board comprises a bottom frame of a concrete structure, wherein the bottom frame comprises a rectangular bottom plate and a peripheral convex frame, a filling body is arranged in the bottom frame, the filling body is of a double-layer structure, the inner layer is a foam acoustic absorption cotton layer, the outer layer is a cement ceramsite layer, the outer surface of the cement ceramsite layer is concave-convex, the highest plane of the cement ceramsite layer is flush with the end face of the frame, noise is transmitted out through the cement ceramsite layer and the foam acoustic absorption cotton layer, part of unabsorbed noise is transmitted through the bottom frame, the acoustic absorption and insulation effects are poor, the filling body cannot be naturally degraded during scrapping, and solid waste pollution is caused to the peripheral environment.
Therefore, there is a need for a ceramsite composite sound-absorbing board and a sound-absorbing method thereof, which can improve sound-absorbing effect and sound-insulating effect, have high strength and do not cause solid waste pollution.
Disclosure of Invention
The invention aims to provide a ceramsite composite sound absorption plate and a sound absorption method thereof, which are used for solving the problems in the prior art, so that the sound absorption effect and the sound insulation effect are improved, the strength is high, and solid waste pollution is avoided.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a ceramsite composite sound absorption plate which comprises a shell, a ceramsite layer and a sound insulation layer, wherein the ceramsite layer and the sound insulation layer are arranged in the shell, noise sequentially penetrates through the ceramsite layer and the sound insulation layer, and a cavity is formed between the sound insulation layer and the inner wall of the shell.
Preferably, a cavity is formed between the ceramic particle layer and the inner wall of the shell.
Preferably, the ceramic particle layer and the sound insulation layer are integrally arranged.
Preferably, the shell comprises an inner shell and an outer shell, the inner shell is arranged in a fully-closed mode, and the outer shell is sleeved outside the inner shell in a close fit mode.
Preferably, a groove for fixing the ceramic particle layer and the sound insulation layer is formed in the inner wall of the inner shell.
Preferably, an opening is formed in one end of the outer shell, the inner shell is exposed out of the opening of the outer shell, and a plug-in slot matched with a part of the inner shell exposed out of the outer shell is formed in the periphery of one end, opposite to the opening end, of the outer shell; or the openings at the two ends of the outer shell are arranged, the inner shell is exposed from the openings at the two ends of the outer shell, the H-shaped groove connecting piece is arranged on the inner shell with one end exposed out of the outer shell, and the insertion groove is formed in one surface, away from the inner shell, of the H-shaped groove connecting piece.
Preferably, the splicing groove is internally provided with a rubber strip with a damping effect, and the outer shell is provided with the rubber strip outside the two side surfaces corresponding to the ceramsite layer and the sound insulation layer.
Preferably, a plurality of bulges are arranged on one surface, far away from the sound insulation layer, of the ceramic particle layer, the bulges are square conical bulges, and the bulges are arranged in a staggered mode.
The sound absorption method of the ceramsite composite sound absorption plate comprises the following steps:
the noise is transmitted into the ceramsite composite sound absorption plate, a part of noise is reflected by the square conical protrusions which are arranged in a staggered mode, the reflected noise is in a divergent state, the reflected noise and incident noise are offset or interfered in a cavity between the ceramsite layer and the inner shell, and the noise is eliminated or the transmission direction of the noise is changed;
the other part of the noise can penetrate through the ceramsite layer, and the noise vibrates and attenuates in the micropore structure of the ceramsite in the ceramsite layer;
the noise which is not reflected by the bulge and not absorbed by the ceramsite layer is partially reflected by the sound insulation layer, continuously enters the ceramsite layer, is absorbed by the ceramsite layer and counteracts or interferes with the incident noise;
the noise passing through the sound insulation layer enters a cavity between the sound insulation layer and the inner shell and repeatedly vibrates in the cavity until the final attenuation is zero.
Compared with the prior art, the invention has the following technical effects:
1. the shell is internally provided with a ceramsite layer and a sound insulation layer which are sequentially penetrated by noise, the noise firstly passes through the ceramsite layer and is partially absorbed by the microporous structure of the ceramsite in the ceramsite layer, the other part of the noise passes through the ceramsite layer to reach the sound insulation layer, and the sound insulation layer reflects a part of the noise to enter the ceramsite layer to be continuously absorbed, so that the sound absorption effect is improved, the noise is counteracted or interfered with incident noise while being absorbed by the ceramsite layer, the transmission direction of the noise is eliminated or changed, and the noise is further reduced.
2. The sound insulation layer is arranged on the inner wall of the shell, and the sound insulation layer is arranged on the inner wall of the shell.
3. A cavity is arranged between the ceramsite layer and the inner wall of the shell, when noise is transmitted to the ceramsite layer, part of the noise is reflected, the reflected noise and incident noise form offset or interference in the cavity, and the reflected noise vibrates repeatedly, so that the noise is reduced.
4. The ceramic particle layer and the sound insulation layer are integrally arranged, and the sound insulation layer is a composite and reinforced sound insulation layer, so that the structural strength of the whole ceramic particle composite sound absorption plate is greatly enhanced, and the ceramic particle composite sound absorption plate is not easy to deform, crack or peel.
5. The shell is divided into an inner shell and an outer shell which is tightly sleeved outside the inner shell, the outer shell can serve as a protection structure to protect the inner shell, on the premise of enhancing the structural strength, the influence of factors such as illumination, cold and heat, wind and rain, bacteria and the like is greatly reduced, and the service life and the weather resistance of the ceramsite composite acoustic board are improved.
6. Be provided with the recess that is used for fixed haydite layer and sound insulation layer on the inner wall of interior casing, the fixed action of recess makes haydite layer and sound insulation layer can not take place the offset in the interior casing, and then makes the compound acoustic baffle of haydite in the transportation, and inner structure can not take place the dislocation.
7. The staggered arrangement of the bulges on the ceramsite layer increases the sound absorption area of the ceramsite layer, and the staggered arrangement of the bulges enables the reflected noise to form a divergent state, so as to offset or interfere with the incident noise, eliminate or change the propagation direction of the noise, and achieve the purpose of reducing the noise.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a structural diagram of a connecting type top sealing block of a ceramsite composite acoustic board outer shell;
FIG. 2 is a structural diagram of a connecting type middle block of the ceramsite composite acoustic board outer shell;
FIG. 3 is a structural diagram of a H-shaped groove connecting piece connecting type top sealing block of the ceramsite composite acoustic board;
FIG. 4 is a structural diagram of a connecting type middle block of an H-shaped groove connecting piece of the ceramsite composite acoustic board;
FIG. 5 is a front cross-sectional view of a ceramsite composite acoustic board according to the present invention;
FIG. 6 is a view showing the internal structure of the ceramsite composite acoustic board according to the present invention;
wherein, 1, a shell; 2. an outer housing; 3. an inner housing; 4. a ceramic layer; 5. a sound insulating layer; 6. a groove; 7. a cavity; 8. inserting grooves; 9. an adhesive tape; 10. an H-shaped groove connecting piece; 11. and (4) protruding.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a ceramsite composite sound absorption plate and a sound absorption method thereof, which are used for solving the problems in the prior art, so that the sound absorption effect and the sound insulation effect are improved, the strength is high, and solid waste pollution is avoided.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example 1:
referring to fig. 1-2 and 5-6, a ceramsite composite sound absorption plate is provided, which includes a housing 1, a ceramsite layer 4 and a sound insulation layer 5, wherein the ceramsite layer 4 and the sound insulation layer 5 are arranged in the housing 1 at intervals or in close proximity, the cross-sectional sizes of the ceramsite layer 4 and the sound insulation layer 5 are the same as the cross-sectional size of the housing 1, the ceramsite layer 4 is arranged on the side close to noise, and the noise sequentially passes through the ceramsite layer 4 and the sound insulation layer 5, so as to achieve the purposes of sound absorption and sound insulation; have cavity 7 between sound insulation layer 5 and the casing 1 inner wall, when cavity 7 exists, the noise of "leaking the net" behind ceramsite layer 4 and sound insulation layer 5 will vibrate repeatedly in this cavity 7, and until the final decay is zero, has improved syllable-dividing effect.
The ceramsite layer 4 is in contact with or arranged at intervals with the inner wall of the shell 1, when the cavity 7 is formed between the ceramsite layer 4 and the inner wall of the shell 1, part of noise is reflected when the noise is transmitted to the ceramsite layer 4, and the reflected noise and incident noise form offset or interference in the cavity 7 and vibrate repeatedly, so that the noise is reduced.
The ceramsite layer 4 and the sound insulation layer 5 can be integrally arranged, so that the strength of the ceramsite composite sound absorption plate is improved.
Casing 1 divide into interior casing 3 and shell body 2, the totally closed setting of interior casing 3, form a totally closed cavity, the size of shell body 2 is slightly bigger than interior casing 3's size, and the whole cover of hugging closely of shell body 2 is established in the periphery of interior casing 3, protect interior casing 3, prevent the illumination, cold and hot, the influence of factors such as wind and rain and bacterium to interior casing 3, improve the weatherability of whole panel, the bilayer sets up the structural strength who makes panel and can promote.
The inner wall of the inner shell 3 is provided with grooves 6 corresponding to the positions of the ceramsite layer 4 and the sound insulation layer 5 and used for fixing the positions of the ceramsite layer 4 and the sound insulation layer 5 in the inner shell 3, when the ceramsite layer 4 and the sound insulation layer 5 are arranged at intervals, the number of the grooves 6 is 4, the upper end and the lower end of each groove are 2, and the sizes of the grooves 6 are respectively matched with the sizes of the ceramsite layer 4 and the sound insulation layer 5 close to the inner wall of the inner shell 3; when the ceramsite layer 4 and the sound insulation layer 5 are arranged closely or integrally, the number of the grooves 6 is 2, the upper end and the lower end of each groove are 1, and the size of each groove 6 is matched with the size of the inner wall part, close to the inner shell 3, of the ceramsite layer 4 and the sound insulation layer 5.
The ceramsite composite sound absorption plate is used for combining to form a decorative plate, wherein the outer shell connecting type top sealing block is shown in figure 1, one end of the outer shell 2 is opened, and a part of the inner shell 3 is exposed out of the opening end of the outer shell 2.
As shown in fig. 2, the periphery of one end of the outer casing 2 opposite to the open end extends to form an insertion groove 8, the size of the insertion groove 8 is the same as that of the exposed part of the inner casing 3 from the open end of the outer casing 2, and the inner casing 3 exposed from the other ceramsite composite sound absorption plate is inserted into the insertion groove 8 to form connection.
The bottom of inserting groove 8 is provided with adhesive tape 9 through the bolt fastening for provide the cushioning effect, this adhesive tape 9 can be the ethylene propylene diene monomer adhesive tape, and the both sides off-plate that shell body 2 and haydite layer 4 and sound insulation layer 5 correspond is equipped with adhesive tape 9, is convenient for laminate the wall body and provides the cushioning effect, and this adhesive tape 9 can be 9 words adhesive tape.
The surface of the ceramic particle layer 4, which is far away from the sound insulation layer 5, is provided with a plurality of bulges 11, so that the sound absorption area is increased.
The protrusions 11 can be square conical protrusions 11, and the protrusions 11 are arranged in a staggered manner, so that reflected noise is in a divergent state, and offset or interference with incident noise is formed, the propagation direction of the noise is eliminated or changed, and the purpose of reducing the noise is achieved.
The ceramsite layer 4 is composed of 0.7kg of pervious concrete rubber powder, 12kg of cement, 34kg of ceramsite and 5kg of water per square meter.
In the process of manufacturing the ceramsite layer 4, the rubber powder and the concrete are uniformly stirred, the ceramsite is added and uniformly stirred, water is added, the mixture is properly and uniformly stirred without excessive stirring, the formation of through holes is ensured, and the rubber powder is SiO2And specialThe polymer synthesized by special functional monomers is a core material for pervious concrete to reach the water permeability and strength standards, and increases the adhesive force between cement and aggregate.
The rubber powder has the functions of enhancing the workability and the viscosity of concrete, increasing the surface activity of cement and converting the dispersibility of a cement base;
the rubber powder also has the functions of keeping the surface stability of the aggregate wrapped by the slurry of the concrete and improving the compressive strength and the caking property of the cement hydrate;
the rubber powder also has the function of improving the frost resistance, durability and weather resistance of the concrete.
Example 2:
as shown in fig. 3-4, the H-shaped groove connecting piece connecting type ceramsite composite acoustic board has most of the same structure as that in the embodiment 1, except that: the outer shell 2 is open at two ends and is closely sleeved on the periphery of the inner shell 3, and the upper end and the lower end of the inner shell 3 are both exposed out of the outer shell 2.
The H-shaped groove connecting piece connecting type capping block is shown in figure 3, an H-shaped groove connecting piece 10 is tightly sleeved on the exposed part of the inner shell 3 at one end from the opening end of the outer shell 2, and one surface, far away from the inner shell 3, of the H-shaped groove connecting piece 10 is trimmed to be a plane.
As shown in fig. 4, an insertion groove 8 is formed on a surface of the H-shaped groove connector 10 away from the inner housing 3, and the insertion groove 8 is used for inserting a portion of the inner housing 3 of the other ceramsite composite sound absorbing board exposed out of the outer housing 2.
In embodiments 1 and 2, after the adhesive tape 9 is installed in the insertion groove 8, the thickness of the adhesive tape 9 should be considered when designing the depth of the insertion groove 8, and preferably, the insertion groove 8 should just cover the part of the inner housing 3 exposed out of the outer housing 2 after the insertion is completed.
The invention also provides a sound absorption method of the ceramsite composite sound absorption plate, noise is transmitted into the ceramsite composite sound absorption plate, a part of noise is reflected by the square conical protrusions 11 which are arranged in a staggered mode, the directions of the reflected noise are different due to the shapes and the arrangement modes of the protrusions 11, the reflected noise is in a divergent state, and the reflected noise and incident noise form offset or interference in the cavity 7 between the ceramsite layer 4 and the inner shell 3, wherein the reflected noise opposite to the noise incidence direction is offset with the incident noise, and the reflected noise different from the noise incidence direction interferes with the transmission of the incident noise, so that the noise is eliminated or the transmission direction of the noise is changed, and the purpose of reducing the noise is achieved;
the other part of the noise can penetrate through the ceramsite layer 4, and the ceramsite has a microporous structure, so that the noise is vibrated and attenuated in the microporous structure of the ceramsite in the ceramsite layer 4, and the purpose of sound absorption is further achieved;
when the noise which is not reflected by the bulge 11 and is not absorbed by the ceramsite layer 4 is transmitted to the sound insulation layer 5, a part of the noise is reflected by the sound insulation layer 5, and the noise reflected by the sound insulation layer 5 continuously enters the ceramsite layer 4 to be absorbed by the ceramsite layer 4 and offset or interfere with the incident noise;
the noise passing through the sound insulation layer 5 can enter the cavity 7 between the sound insulation layer 5 and the inner shell 3, and the noise repeatedly vibrates in the cavity 7 until the final attenuation is zero, so that the aim of sound insulation is fulfilled.
In the actual use process, the middle blocks of different ceramsite composite sound-absorbing boards are connected into a whole in an inserting mode, and the top end of the middle block is inserted with a ceramsite composite sound-absorbing board sealing top block to form the decorative board.
The adaptation according to the actual needs is within the scope of the invention.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.

Claims (10)

1. The ceramsite composite sound absorption plate is characterized by comprising a shell, a ceramsite layer and a sound insulation layer, wherein the ceramsite layer and the sound insulation layer are arranged in the shell, noise sequentially penetrates through the ceramsite layer and the sound insulation layer, and a cavity is formed between the sound insulation layer and the inner wall of the shell.
2. The ceramsite composite acoustic board according to claim 1, wherein a cavity is formed between the ceramsite layer and the inner wall of the shell.
3. The ceramsite composite acoustic board according to claim 1, wherein the ceramsite layer is integrated with the sound insulation layer.
4. The ceramsite composite acoustic board according to claim 1, wherein the shell comprises an inner shell and an outer shell, the inner shell is totally enclosed, and the outer shell is tightly sleeved outside the inner shell.
5. The ceramsite composite sound absorption plate according to claim 4, wherein the inner wall of the inner shell is provided with a groove for fixing the ceramsite layer and the sound insulation layer.
6. The ceramsite composite acoustic board according to claim 4, wherein an opening is formed at one end of the outer shell, the inner shell is exposed from the opening of the outer shell, and a plug-in groove matched with a part of the inner shell exposed from the outer shell is formed by extending the periphery of one end of the outer shell opposite to the opening end.
7. The ceramsite composite acoustic board according to claim 4, wherein the two openings of the outer shell are disposed, the inner shell is exposed from the two openings of the outer shell, the inner shell with one end exposed from the outer shell is provided with an H-shaped groove connector, and one surface of the H-shaped groove connector, which is far away from the inner shell, is provided with an insertion groove.
8. The ceramsite composite acoustic board according to claim 6 or 7, wherein the inserting groove is internally provided with a rubber strip with a damping effect, and the outer shell is provided with rubber strips outside the two side surfaces corresponding to the ceramsite layer and the sound insulation layer.
9. The ceramsite composite sound absorption board according to claim 1, wherein a plurality of protrusions are arranged on one surface of the ceramsite layer away from the sound insulation layer, the protrusions are square conical protrusions, and the plurality of protrusions are arranged in a staggered manner.
10. The sound absorption method of the ceramsite composite sound absorption plate is characterized by comprising the following steps of:
the noise is transmitted into the ceramsite composite sound absorption plate, a part of noise is reflected by the square conical protrusions which are arranged in a staggered mode, the reflected noise is in a divergent state, the reflected noise and incident noise are offset or interfered in a cavity between the ceramsite layer and the inner shell, and the noise is eliminated or the transmission direction of the noise is changed;
the other part of the noise can penetrate through the ceramsite layer, and the noise vibrates and attenuates in the micropore structure of the ceramsite in the ceramsite layer;
the noise which is not reflected by the bulge and not absorbed by the ceramsite layer is partially reflected by the sound insulation layer, continuously enters the ceramsite layer, is absorbed by the ceramsite layer and counteracts or interferes with the incident noise;
the noise passing through the sound insulation layer enters a cavity between the sound insulation layer and the inner shell and repeatedly vibrates in the cavity until the final attenuation is zero.
CN202011457561.6A 2020-12-11 2020-12-11 Ceramsite composite sound absorption plate and sound absorption method thereof Pending CN112502375A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200238705Y1 (en) * 2001-01-06 2001-09-26 송산산업(주) a sound absorption plate
CN104164842A (en) * 2014-08-22 2014-11-26 江苏新光环保工程有限公司 Light high-strength metal-ceramic composite acoustic board
CN104727244A (en) * 2015-03-25 2015-06-24 成都中弘轨道交通环保产业股份有限公司 Metal and ceramic composite sound barrier sound absorption and insulation unit plate structure
CN111455885A (en) * 2020-05-06 2020-07-28 江苏新光环保工程有限公司 Metal ceramsite composite acoustic board
CN214246418U (en) * 2020-12-11 2021-09-21 江苏远兴集团建设有限公司 Ceramsite composite sound absorption plate

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200238705Y1 (en) * 2001-01-06 2001-09-26 송산산업(주) a sound absorption plate
CN104164842A (en) * 2014-08-22 2014-11-26 江苏新光环保工程有限公司 Light high-strength metal-ceramic composite acoustic board
CN104727244A (en) * 2015-03-25 2015-06-24 成都中弘轨道交通环保产业股份有限公司 Metal and ceramic composite sound barrier sound absorption and insulation unit plate structure
CN111455885A (en) * 2020-05-06 2020-07-28 江苏新光环保工程有限公司 Metal ceramsite composite acoustic board
CN214246418U (en) * 2020-12-11 2021-09-21 江苏远兴集团建设有限公司 Ceramsite composite sound absorption plate

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