CN108648744B - Noise-reducing, oxygen-charging-preventing and algae-preventing cover plate - Google Patents
Noise-reducing, oxygen-charging-preventing and algae-preventing cover plate Download PDFInfo
- Publication number
- CN108648744B CN108648744B CN201810800151.3A CN201810800151A CN108648744B CN 108648744 B CN108648744 B CN 108648744B CN 201810800151 A CN201810800151 A CN 201810800151A CN 108648744 B CN108648744 B CN 108648744B
- Authority
- CN
- China
- Prior art keywords
- plate
- noise
- cover plate
- algae
- preventing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004062 sedimentation Methods 0.000 claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 238000009413 insulation Methods 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 30
- 238000013016 damping Methods 0.000 claims abstract description 24
- 241000195493 Cryptophyta Species 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 239000011358 absorbing material Substances 0.000 claims abstract description 11
- 238000010521 absorption reaction Methods 0.000 claims abstract description 10
- 239000010410 layer Substances 0.000 claims description 47
- 239000011491 glass wool Substances 0.000 claims description 11
- 238000007667 floating Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 5
- 239000011229 interlayer Substances 0.000 claims description 3
- 238000006213 oxygenation reaction Methods 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 19
- 229910052760 oxygen Inorganic materials 0.000 abstract description 19
- 239000001301 oxygen Substances 0.000 abstract description 19
- 238000009395 breeding Methods 0.000 abstract description 4
- 230000001488 breeding effect Effects 0.000 abstract description 4
- 239000010865 sewage Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 230000005791 algae growth Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 239000005060 rubber Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000012010 growth Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000003872 anastomosis Effects 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
- G10K11/168—Plural layers of different materials, e.g. sandwiches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
-
- 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
- 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
- B32B5/02—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 structural features of a fibrous or filamentary layer
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention discloses a noise-reducing, oxygenation-preventing and algae-preventing cover plate, which comprises a sound insulation plate, a damping layer and a sound absorption material; the sound insulation board is used as a cover plate shell and is located on the outermost layer of the cover plate, is formed by a double-layer steel plate structure with different thicknesses, and is formed by sticking a damping layer between an absorbing material located in the sound insulation board and the sound insulation board, wherein the damping layer and the inner surface of the sound insulation board are completely stuck to form a free damping layer. The invention can solve the problems of reducing noise and dissolved oxygen generated by water outlet and drop of the sedimentation tank, reducing the influence of noise on surrounding residents, improving the treatment efficiency of subsequent anaerobic and anoxic structures, and avoiding the technical problems of algae breeding in the water outlet weir groove caused by direct sunlight.
Description
Technical Field
The invention relates to a sewage treatment technology.
Background
The noise of the sewage treatment plant meets the requirements of environmental noise emission standard of industrial enterprises and factories (GB 12348-2008) and sound environmental quality standard (GB 3096-2008). Along with the expansion of urban scale, the sewage treatment plant is more and more near to the residential area, the noise generated by the operation of mechanical equipment of the sewage treatment plant and the falling of structures has more and more obvious influence on the daily life of surrounding residents, and the complaints of the noise of the sewage treatment plant are more and more.
The noise of the sewage treatment plant mainly comes from the noise generated by the operation of mechanical equipment of a pretreatment section and the drop of a water distribution well, the noise generated by the drop of aeration equipment and a water outlet well of secondary treatment and the noise generated by the mechanical equipment and the drop of advanced treatment. The noise of the mechanical equipment and the aeration equipment is generally quite loud, but the equipment is relatively concentrated, noise reduction facilities are considered at the point of average weight in the design, and the noise can be effectively controlled. Noise generated by drop of the water distribution well and the water outlet well is generally reduced by additionally installing a cover plate, and noise control is easier because the water distribution well and the water outlet well are smaller. The primary sedimentation tank and the secondary sedimentation tank have larger areas, the water outlet weir is longer and is linearly distributed, the noise generated by falling continuously exists, the noise is difficult to treat, and noise reduction measures are not adopted in the prior art. However, in an environment sensitive area, when the noise control requirement is high at night, the noise generated by the water fall of the sedimentation tank has a great influence on the surrounding environment, and the noise generated by the water fall of the primary sedimentation tank and the secondary sedimentation tank needs to be controlled.
The primary sedimentation tank of the sewage treatment plant is generally followed by an anaerobic tank, and dissolved oxygen is unfavorable for the anaerobic tank to keep strictly anaerobic, so that the dissolved oxygen generated by the primary sedimentation tank needs to be controlled. If the sewage treatment plant has the requirement of deep denitrification, when the deep denitrification treatment processes such as a denitrification biological filter, an active sand filter and a deep bed filter are adopted after the secondary sedimentation tank, the influence of dissolved oxygen on the subsequent denitrification is very large, and the dissolved oxygen generated by the secondary sedimentation tank needs to be controlled. The primary sedimentation tank and the secondary sedimentation tank generally fall out of water through an effluent weir, and in the water fall process, the dissolved oxygen is greatly improved, and the dissolved oxygen in a water outlet channel can reach about 4mg/L, so that the dissolved oxygen generated in the water fall process of the sedimentation tank needs to be controlled.
Under the condition that sunlight is directly irradiated, algae are easy to breed in the water outlet weir groove of the sedimentation tank, the attractiveness of the tank body is affected, follow-up treatment structures are easy to be blocked, the efficiency of equipment is reduced or the equipment is failed due to the fact that algae are wound on the equipment, the maintenance workload of a treatment unit is increased due to the growth of algae, and therefore the growth of algae in the water outlet weir groove of the sedimentation tank is required to be prevented.
Disclosure of Invention
The invention aims to provide a noise-reducing, oxygenation-preventing and algae-preventing cover plate, which aims to solve the technical problems of reducing noise and dissolved oxygen generated by water drop of water outlet of a sedimentation tank, reducing the influence of noise on surrounding residents, improving the treatment efficiency of subsequent anaerobic and anoxic structures, and avoiding algae breeding in a water outlet weir groove caused by direct sunlight.
In order to achieve the above object, the present invention adopts the following technical scheme:
the noise-reducing, oxygenation-preventing and algae-preventing cover plate comprises a sound insulation plate, a damping layer and a sound absorption material; the sound insulation board is used as a cover plate shell and is located on the outermost layer of the cover plate, is formed by a double-layer steel plate structure with different thicknesses, and is formed by sticking a damping layer between an absorbing material located in the sound insulation board and the sound insulation board, wherein the damping layer and the inner surface of the sound insulation board are completely stuck to form a free damping layer.
The inner layer steel plate of the sound insulation plate is thin, and the outer layer steel plate is thick.
And a light-reflection-free material layer is sprayed on the upper surface of the sound insulation plate.
The density of the sound absorbing material is 25kg/m 3 The superfine glass wool material with the thickness of 100mm is placed in a double-sided interlayer of the sound insulation plate and tightly combined with the sound insulation plate.
Both surfaces of the superfine glass wool are protected by a facing material.
The facing material is made of plastic film material and is tightly attached between the sound insulation plate and the superfine glass wool.
The noise-reduction, oxygenation-prevention and algae-prevention cover plate is divided into a standard plate, a non-standard plate I and a non-standard plate II, wherein each sedimentation tank needs n standard plates, and one non-standard plate I and one non-standard plate II; the length of the noise-reducing, oxygenation-preventing and algae-preventing cover plate is determined according to the distance between the floating mud baffle and the inner wall of the sedimentation tank, the width of the first non-standard plate is the same as that of the standard plate, and the width of the second non-standard plate is determined according to the width of the last orifice of the sedimentation tank; one side of the standard plate is provided with a cover plate lap joint part, namely, the upper sound insulation plate of the cover plate is slightly wider than the cover plate and is a triangular part, the non-standard plate is free of lap joint parts, and the non-standard plate II is provided with lap joint parts at two sides.
The standard plate, the non-standard plate I and the non-standard plate II are provided with opening lifting handles, and the setting direction of the lifting handles of the non-standard plate II is vertical to the lifting handles of the standard plate.
And sealing layers are arranged at the lap joint positions among the standard plate, the non-standard plate I and the non-standard plate II, and between the cover plate and the floating mud baffle plate and between the cover plate and the inner wall of the sedimentation tank.
The noise-reduction, oxygenation-prevention and algae-prevention cover plate is fixed through the water collecting channel and the sedimentation tank wall, a cover plate bracket is arranged on a weir plate of the water collecting channel on the inner wall of the sedimentation tank, and the noise-reduction, oxygenation-prevention and algae-prevention cover plate is placed on the bracket.
The invention has the following advantages:
the noise-reducing, oxygenation-preventing and algae-preventing cover plate is mainly controlled on a noise transmission path, and through sequentially arranging the sound insulation plate, the damping layer, the facing material, the sound absorption material, the facing material, the damping layer and the sound insulation plate 7 layers, noise and dissolved oxygen generated by water outlet and drop of a sedimentation tank are effectively reduced, the influence of noise on surrounding residents is reduced, the treatment efficiency of subsequent anaerobic and anoxic structures is improved, after the cover plate is increased, the problem of algae breeding in an outlet weir groove caused by direct sunlight is avoided, the algae cleaning of the outlet trough of the sedimentation tank is reduced, and the operation and maintenance workload of subsequent treatment units caused by the increase of dead algae falling is avoided.
The noise-reducing, oxygenation-preventing and algae-preventing cover plate is designed according to the specific size of the sedimentation tank, has good tightness, and rubber sealing treatment is adopted at the joint between the noise-reducing, oxygenation-preventing and algae-preventing cover plates and between the cover plate and the sedimentation tank wall and between the cover plate and the floating mud baffle, so that sound leakage, dissolved oxygen entering and algae breeding can be effectively prevented.
The noise-reducing, oxygenation-preventing and algae-preventing cover plate is processed in a factory, and is convenient to obtain materials and process and transport.
The noise-reducing, oxygenation-preventing and algae-preventing cover plate is convenient to install, normal operation of the sedimentation tank is not affected, and maintenance cost is low.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic installation view of the present invention.
Numbering in the figures: 1. the first layer sound insulation board, 2, the first layer damping layer, 3, the first layer facing material, 4, the sound absorption material, 5, the second layer facing material, 6, the second layer damping layer, 7, the second layer sound insulation board, 8, the noise reduction, oxygen release and algae prevention cover plate, 9, rubber seal, 10, the floating mud baffle, 11, the cover plate support, 12 cover plate supports, 13, the fixed bolster, 14, the water outlet weir, 15, the water outlet weir, 16, bolt fastening, 17, the water collecting channel, 18 and the secondary sedimentation tank.
Detailed Description
Referring to fig. 1, the noise-reducing, oxygenation-preventing and algae-preventing cover plate comprises a sound insulation plate, a damping layer and a sound absorption material; the sound insulation board is used as a cover plate shell and is located on the outermost layer of the cover plate, is formed by a double-layer steel plate structure with different thicknesses, and is formed by sticking a damping layer between an absorbing material located in the sound insulation board and the sound insulation board, wherein the damping layer and the inner surface of the sound insulation board are completely stuck to form a free damping layer.
The working principle and the installation mode of the invention are as follows:
(1) Working principle of noise-reducing, oxygenation-preventing and algae-preventing cover plate
When the effluent of the effluent weir of the sedimentation tank falls to the water surface from a high position, the effluent can impact the water surface at a high speed, so that air bubbles are generated in the water, and when the air bubbles float to the water surface, the air bubbles break to form noise of bubble breaking. The noise source is the water surface of the water outlet area under the water outlet weir, is steady-state water noise generated by the impact between large-area continuous liquids on the water surface caused by the falling water of the water outlet weir, and is a special noise except mechanical noise, aerodynamic noise and electromagnetic noise. The drop noise has a large influence on residents at night, and noise control is required. The invention provides a noise-reducing, oxygenation-preventing and algae-preventing cover plate aiming at noise generated by drop of a sedimentation tank, and can effectively reduce noise generated by drop of a secondary sedimentation tank.
The primary sedimentation tank of the sewage treatment plant is generally followed by an anaerobic tank, and in order to keep the anaerobic tank in a strict anaerobic environment and reduce the influence of dissolved oxygen on the anaerobic tank, the dissolved oxygen generated by the water fall of the primary sedimentation tank needs to be strictly controlled. When denitrification is needed for advanced treatment, a denitrification filter such as a denitrification biological filter, an active sand filter and a deep bed filter is generally additionally arranged behind the secondary sedimentation tank, dissolved oxygen not only reduces the activity of denitrifying bacteria, but also preferentially consumes an internal carbon source and an external carbon source, thereby improving the operation cost, reducing the treatment effect and having larger influence on the denitrification filter. The secondary sedimentation tank drop is a main reason for increasing dissolved oxygen in water, so that the dissolved oxygen generated by the secondary sedimentation tank water outlet drop needs to be reduced. The invention provides a noise-reduction, oxygenation-prevention and algae-prevention cover plate aiming at the water fall oxygenation of the effluent of a sedimentation tank, which can effectively reduce the dissolved oxygen supplemented by the water fall of the effluent of a secondary sedimentation tank.
The algae growth not only affects the beauty of the sedimentation tank body, blocks the subsequent processing structures, reduces the processing efficiency of the subsequent structures, causes equipment failure, increases maintenance workload and operation cost, and therefore, measures for preventing the algae growth in the water outlet weir groove of the sedimentation tank need to be taken. Algae growth is generally prevented by improving water quality, increasing hydraulic flow and additionally installing a cover plate to prevent direct sunlight, and the noise-reducing and oxygen-preventing algae-preventing cover plate can reduce direct sunlight and effectively reduce algae growth in the water outlet weir groove of the secondary sedimentation tank.
The noise-reducing, oxygenation-preventing and algae-preventing cover plate is used for controlling noise on the propagation path of water fall noise of the water outlet weir of the sedimentation tank, reducing oxygenation by reducing dissolved oxygen of air in the water outlet tank and reducing algae growth in the water outlet tank by preventing direct sunlight. The structure of the noise-reduction, oxygenation-prevention and algae-prevention cover plate is determined by analysis and calculation according to the noise-reduction requirement and specific parameters of the sedimentation tank.
1) Sound insulation board
In the process of transmission, when the noise reaches the interface of the sound insulation plate, a part of the noise is transmitted and reflected, so that the noise of one more layer of sound insulation plate is reflected once more, more noise energy is consumed, and a part of the noise is absorbed in the reflecting process, so that the double-layer sound insulation plate structure is designed to obtain a better sound insulation effect.
The double-layer sound insulation plate material adopts common carbon steel plates with the density p=7850 kg/m 3 . In order to avoid resonance and anastomosis effects of sound waves and the steel plates, double-layer steel plate structures with different thicknesses are selected, the thickness of the inner layer steel plate of the sound insulation cover is 0.5mm, and the thickness of the outer layer steel plate is 1.0mm. Meanwhile, a free damping layer mode is adopted, a damping layer is stuck between the sound insulation plate and the sound absorption material, the thickness of the damping layer is 2-3 mm, and the damping layer is required to be completely stuck to the inner surface of the sound insulation plate.
In order to avoid light pollution to the surrounding environment caused by light reflection of the noise-reducing, oxygenation-preventing and algae-preventing cover plate, measures for preventing strong light reflection of the cover plate or spraying non-reflection light materials are adopted on the upper surface of the noise-reducing, oxygenation-preventing and algae-preventing cover plate.
The sound insulation board should have certain tensile and bending strength and certain flame retardant property.
2) Selection of sound absorbing material
The noise-reducing, oxygenation-preventing and algae-preventing cover plate is internally provided with sound-absorbing materials, the sound-absorbing materials are waterproof and dampproof, and the danger of fire is considered. In addition, the noise of different frequencies needs different sound absorption materials, and the superfine glass wool has very good absorption effect for noise generated by drop. The sound absorbing efficiency of the sound absorbing material may be enhanced by increasing the thickness and the volume weight of the sound absorbing material.
The density of the patent is 25kg/m 3 Ultrafine glass wool with the thickness of 100mm is used as a sound absorption material and is placed in a double-sided interlayer of the sound insulation plate to be tightly combined with the cover plate without falling off.
Both surfaces of the superfine glass wool are protected by a facing material so as to prevent the glass wool from falling off. The plastic film material with light weight is selected as the facing material, and is clung to the back of the sound insulation plate and the glass wool.
(3) Outline dimension of noise-reducing, oxygenation-preventing and algae-preventing cover plate
The noise-reduction, oxygenation-prevention and algae-prevention cover plate is determined according to the specific size of the sedimentation tank and is divided into a standard plate, a non-standard plate I and a non-standard plate II, wherein each sedimentation tank needs n standard plates, 1 non-standard plate I and 1 non-standard plate II.
The length of the noise-reducing, oxygenation-preventing and algae-preventing cover plate is determined according to the distance between the floating mud baffle and the inner wall of the sedimentation tank, and is generally 1.5-2 m. The width of the standard plate is preferably 1m, the width of the non-standard plate I is the same as that of the standard plate (the width is preferably 1 m), and the width of the non-standard plate 2 is determined according to the width of the last orifice of the sedimentation tank.
In order to ensure that 2 partition plates are tightly abutted and attractive in appearance, one side of the standard plate is provided with a cover plate lap joint part (the upper sound insulation plate of the cover plate is slightly wider than the cover plate and is a 3-angle part), the non-standard plate is provided with no lap joint part, and the two sides of the non-standard plate are provided with lap joint parts.
The specification and the size of the single glass fiber reinforced plastic cover plate should consider the convenience of opening operation, an opening lifting handle should be arranged, and the material should not be lower than AISI304 stainless steel. The number of lifting handles of the standard plate and the non-standard plate I is 2, and the number of lifting handles of the non-standard plate II is 4. In order to distinguish the standard plate from the non-standard plate, the setting direction of the lifting handle of the non-standard plate II is vertical to the lifting handle of the standard plate, which is beneficial to the installation and opening of the noise-reducing, oxygenation-preventing and algae-preventing cover plate of the sedimentation tank.
The lap joint between the noise-reduction, oxygenation-prevention and algae-prevention cover plates, the floating mud baffle plate and the inner wall of the sedimentation tank should be subjected to sealing treatment, and the sealing treatment is firm and reliable.
(4) Installation of noise-reducing, oxygenation-preventing and algae-preventing cover plate
The installation of the noise-reduction, oxygenation-prevention and algae-prevention cover plate does not influence the normal operation of the sewage treatment plant, and is easy to install and replace.
When the noise-reduction, oxygenation-prevention and algae-prevention cover plate is installed, the standard plate is installed firstly, then the non-standard plate I is installed, and finally the non-standard plate II is used. When the sedimentation tank cover plate is opened, the non-standard plate II is opened firstly, and then the other cover plates are opened.
Referring to fig. 2, rubber seals are applied to the joint edges of the noise-reducing, oxygenation-preventing and algae-preventing cover plates to prevent leakage of sound caused by diffraction of sound waves. The periphery of the noise-reducing, oxygenation-preventing and algae-preventing cover plate is sealed by rubber, so that gaps among the cover plates, between the cover plates and the floating mud baffle plate, and between the cover plates and the inner wall of the sedimentation tank are reduced to the minimum.
The noise-reduction, oxygenation-prevention and algae-prevention cover plate is fixed through the water collecting channel and the sedimentation tank wall, a cover plate bracket is arranged on a weir plate of the water collecting channel on the inner wall of the sedimentation tank, and the noise-reduction, oxygenation-prevention and algae-prevention cover plate is placed on the bracket.
All anchor bolts are made of stainless steel and are not lower than AISI 304.
Claims (7)
1. The noise-reducing, oxygenation-preventing and algae-preventing cover plate comprises a sound insulation plate, a damping layer and a sound absorption material; the sound insulation plate is characterized in that the sound insulation plate is arranged on the outermost layer of the cover plate as a cover plate shell and is formed by a double-layer steel plate structure with different thicknesses, a damping layer is stuck between an absorbing material arranged in the sound insulation plate and the sound insulation plate, and the damping layer and the inner surface of the sound insulation plate are completely stuck to form a free damping layer; the noise-reduction, oxygenation-prevention and algae-prevention cover plate is divided into a standard plate, a non-standard plate I and a non-standard plate II, wherein each sedimentation tank needs n standard plates, and one non-standard plate I and one non-standard plate II; the length of the noise-reducing, oxygenation-preventing and algae-preventing cover plate is determined according to the distance between the floating mud baffle and the inner wall of the sedimentation tank, the width of the first non-standard plate is the same as that of the standard plate, and the width of the second non-standard plate is determined according to the width of the last orifice of the sedimentation tank; one side of the standard plate is provided with a cover plate lap joint part, namely the upper sound insulation plate of the cover plate is slightly wider than the cover plate and is a triangular part, the non-standard plate has no lap joint part, and the non-standard plate II is provided with lap joint parts at two sides; the inner layer steel plate of the sound insulation plate is thin, and the outer layer steel plate is thick; and a light-reflection-free material layer is sprayed on the upper surface of the sound insulation plate.
2. The noise-reducing, oxygenation-preventing and algae-preventing cover plate according to claim 1, wherein the sound-absorbing material is selected from the group consisting of a density of 25kg/m 3 The superfine glass wool material with the thickness of 100mm is placed in a double-sided interlayer of the sound insulation plate and tightly combined with the sound insulation plate.
3. The noise-reducing, oxygenation-preventing and algae-preventing cover plate according to claim 2, wherein both surfaces of the ultra-fine glass wool are protected by facing materials.
4. The noise-reducing, oxygenation-preventing and algae-preventing cover plate according to claim 3, wherein the facing material is a plastic film material, and is tightly attached between the sound-insulating plate and the superfine glass wool.
5. The noise-reduction, oxygenation-prevention and algae-prevention cover plate according to claim 1, wherein the standard plate, the non-standard plate I and the non-standard plate II are provided with an opening lifting handle, and the lifting handle of the non-standard plate II is arranged in a direction perpendicular to the lifting handle of the standard plate.
6. The cover plate for noise reduction, oxygenation and algae prevention according to claim 1, wherein sealing layers are arranged at the lap joint between the standard plate, the non-standard plate I and the non-standard plate II, and between the cover plate and the floating mud baffle plate and between the cover plate and the inner wall of the sedimentation tank.
7. The noise-reduction, oxygenation-prevention and algae-prevention cover plate according to claim 1, wherein the noise-reduction, oxygenation-prevention and algae-prevention cover plate is fixed through a water collecting channel and a sedimentation tank wall, a cover plate bracket is arranged on a weir plate of the sedimentation tank inner wall and the water collecting channel, and the noise-reduction, oxygenation-prevention and algae-prevention cover plate is placed on the bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810800151.3A CN108648744B (en) | 2018-07-20 | 2018-07-20 | Noise-reducing, oxygen-charging-preventing and algae-preventing cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810800151.3A CN108648744B (en) | 2018-07-20 | 2018-07-20 | Noise-reducing, oxygen-charging-preventing and algae-preventing cover plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108648744A CN108648744A (en) | 2018-10-12 |
| CN108648744B true CN108648744B (en) | 2023-11-21 |
Family
ID=63759669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810800151.3A Active CN108648744B (en) | 2018-07-20 | 2018-07-20 | Noise-reducing, oxygen-charging-preventing and algae-preventing cover plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108648744B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112320981A (en) * | 2020-10-28 | 2021-02-05 | 天津泰达新水源科技开发有限公司 | Method for reducing outlet water reoxygenation value of biochemical secondary sedimentation tank |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201780778U (en) * | 2010-08-27 | 2011-03-30 | 张宇 | Multi-module resistance composite sound insulating board |
| CN202892991U (en) * | 2012-06-21 | 2013-04-24 | 太平洋水处理工程有限公司 | Effluent weir sound-absorbing and insulating and noise-reducing cover plate of settling pond |
| CN203620305U (en) * | 2013-12-03 | 2014-06-04 | 厦门水务中环污水处理有限公司 | Capping and algae removal device for secondary sedimentation tank effluent weir of sewage treatment plant |
| CN204723863U (en) * | 2015-05-25 | 2015-10-28 | 李�诚 | A kind of anti-algae grows removable cover |
| KR101745507B1 (en) * | 2016-10-14 | 2017-06-12 | 선종명 | Cover for settling tank |
| CN106968314A (en) * | 2017-03-20 | 2017-07-21 | 大成科创基础建设股份有限公司 | Sponge City Green rainwater body refuse rapid cleaning device |
| DE102016116976A1 (en) * | 2016-09-09 | 2018-03-15 | Dr. Pecher Ag | System for cleaning surface water and method of operating such a system |
| CN208422401U (en) * | 2018-07-20 | 2019-01-22 | 北京市市政工程设计研究总院有限公司 | The anti-anti- algae cover board of oxygenation of noise reduction |
-
2018
- 2018-07-20 CN CN201810800151.3A patent/CN108648744B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201780778U (en) * | 2010-08-27 | 2011-03-30 | 张宇 | Multi-module resistance composite sound insulating board |
| CN202892991U (en) * | 2012-06-21 | 2013-04-24 | 太平洋水处理工程有限公司 | Effluent weir sound-absorbing and insulating and noise-reducing cover plate of settling pond |
| CN203620305U (en) * | 2013-12-03 | 2014-06-04 | 厦门水务中环污水处理有限公司 | Capping and algae removal device for secondary sedimentation tank effluent weir of sewage treatment plant |
| CN204723863U (en) * | 2015-05-25 | 2015-10-28 | 李�诚 | A kind of anti-algae grows removable cover |
| DE102016116976A1 (en) * | 2016-09-09 | 2018-03-15 | Dr. Pecher Ag | System for cleaning surface water and method of operating such a system |
| KR101745507B1 (en) * | 2016-10-14 | 2017-06-12 | 선종명 | Cover for settling tank |
| CN106968314A (en) * | 2017-03-20 | 2017-07-21 | 大成科创基础建设股份有限公司 | Sponge City Green rainwater body refuse rapid cleaning device |
| CN208422401U (en) * | 2018-07-20 | 2019-01-22 | 北京市市政工程设计研究总院有限公司 | The anti-anti- algae cover board of oxygenation of noise reduction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108648744A (en) | 2018-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108648744B (en) | Noise-reducing, oxygen-charging-preventing and algae-preventing cover plate | |
| CN106782482A (en) | Compound Felt | |
| CN103021629A (en) | Silencing box body for box-type transformer with modular structure | |
| CN202793069U (en) | Noise elimination and reduction device for large natural ventilation cooling tower of thermal power plant | |
| CN204154140U (en) | Cooling stack noise elimination structure | |
| CN207760746U (en) | Novel insulation board on a kind of expressway | |
| CN208422401U (en) | The anti-anti- algae cover board of oxygenation of noise reduction | |
| CN201536010U (en) | Sound absorption unit component and sound absorption unit comprising same | |
| CN103606370B (en) | Outdoor impedance composite silencer | |
| CN210217352U (en) | Glass steel keeps out wind and presses down dirt structure | |
| CN201503758U (en) | Reactor sound insulation enclosure | |
| CN203572259U (en) | Noise-abatement equipment for hyperbolic cooling tower in thermal power plant | |
| CN216799189U (en) | Safety isolation device of town road environmental protection dust fall | |
| CN111098974A (en) | Waterproof sound insulation enclosure wall structure | |
| CN205369569U (en) | Can assembled large -scale room ventilation sound -proof housing of repeated dismantlement | |
| CN210149498U (en) | High-performance ship cabin wall plate elastic connection structure | |
| CN210088232U (en) | Conveying pipeline for wastewater treatment | |
| CN210837160U (en) | Concrete prefabricated component automation line shaking table facility that gives sound insulation | |
| CN201546333U (en) | Damping sound insulation screen | |
| CN207165230U (en) | A kind of strip-type silencer | |
| CN205907839U (en) | Ecological wall that gives sound insulation of water conservation | |
| CN207048098U (en) | A kind of sandwich sound-absorbing composite board | |
| CN219708123U (en) | Noise reduction structure of overhead belt gallery | |
| CN212838087U (en) | Shaft type mute box body with air exhaust function | |
| CN111305615A (en) | Building pipe gallery structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |