CN101745455B - Noise reduction system of cement grinding production line - Google Patents
Noise reduction system of cement grinding production line Download PDFInfo
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- CN101745455B CN101745455B CN2009101447172A CN200910144717A CN101745455B CN 101745455 B CN101745455 B CN 101745455B CN 2009101447172 A CN2009101447172 A CN 2009101447172A CN 200910144717 A CN200910144717 A CN 200910144717A CN 101745455 B CN101745455 B CN 101745455B
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Abstract
The invention discloses a noise reduction system of a cement grinding production line. The cement grinding production line comprises a grinding mill (1), a ball mill (2) and a delivery gallery, wherein the grinding mill (1) is in a totally closed structure; the inner wall of the grinding mill (1) is provided with a sound absorber (4) in a plate-shaped structure; the sound absorber (4) is supported on the wall of the grinding mill (1) by a connecting piece; the sound absorber (4) is parallel to the wall of the grinding mill (1), and a gap is arranged between the sound absorber (4) and the wall of the grinding mill (1). The invention takes countermeasures, i.e. sound reduction, sound insulation, and the like for high-noise production workshops, i.e. cement grinding mill and the like, not only meets the requirements of the ventilation and the radiation of equipment, but also controls the noise of equipment, i.e. the ball mill (2), a centrifugal fan, and the like, from externally spreading, effectively reduces the pollution of the noise for the environment and ensures the cement grinding production line to stably run.
Description
Technical field
The invention belongs to the technical field of construction material production process equipment, relate to cement manufacture plant noise abatement green technology, more particularly, the present invention relates to a kind of noise reduction system of cement grinding production line.
Background technology
At cement grinding production line, can produce much noise in the production process in equipment operation such as ball mill and the centrifugal blower process and pollute, influence plant area, the original acoustic environment of factory circle, and then influence the production line normal operation.
The ball mill noise is mainly produced by mutual bump between steel ball, material and the liner plate in the cylindrical shell and grinding, and to external radiation, in addition, motor, reductor, shaft coupling, transmission device also produce bigger noise to noise by drum surface.
Blower fan mainly comprises centrifugal blower and roots blower, and noise is mainly air power noise and mechanical noise.Along with fan delivery and blast increase, noise is in rising trend, and is the wideband noise characteristic, and fan noise mainly is made up of following four parts:
1, results from the air power noise of air inlet and exhaust outlet during fan operation;
2, the mechanical noise of radiation such as casing, duct wall and bearing of motor;
3, the electromagnetic noise of motor;
4, fan vibration is by the solid-borne noise of basic radiation.
Summary of the invention
Problem to be solved by this invention provides a kind of noise reduction system of cement grinding production line, its objective is the influence of control appliance noise to environment, satisfies each workshop ventilation and heat needs, ensures the stable operation of grinding production line.
To achieve these goals, the technical scheme taked of the present invention is:
This noise reduction system of cement grinding production line provided by the present invention, described production line comprise mill room, ball mill, conveying gallery, and described mill room is a full-closed structure; On the interior walls in mill room, be provided with sound absorber, described sound absorber is a platy structure, and described sound absorber is supported on by connector on the wall in mill room, and described sound absorber is parallel with the between the walls that grinds the room and be provided with the gap.
For making the present invention more perfect, more detailed and concrete technical scheme below also further having proposed, to obtain best practical function, realize goal of the invention better, and improve novelty of the present invention and creativeness:
The structure at the gate in described mill room is the heavy body double-layer seal sound insulation of flat-open type gate; The window of the natural lighting in described mill room adopts the double-deck fixed window of PVC.
Establish vent window on the body of wall in described mill room, described vent window is provided with bend muffler.
The noise elimination ventilating duct is established at the body of wall top in described mill room.
The main motor in described mill room and bistrique place establish special-purpose noise elimination passage, and the anechoic sheet of interlaced arrangement is installed in the described special-purpose noise elimination passage; Side outside described special-purpose noise elimination passage is positioned at the mill room is established arc retaining sound wall, and the arc convex direction of described arc retaining sound wall is outside the mill room.
Above the main motor in described mill room, establish main motor ventilation pipe and be connected to the powder concentrator air inlet.
Each floor face in described mill room is provided with the flooring air vent.
The vibratory equipment of described production line is provided with the vibration damping basis.
The non-standard pipeline of all blower fan inlet and outlets of described production line is provided with flexible connection structure; The dust collecting fan exhaust outlet all installs silencer additional, and the open-air bag filter pulse valve of arranging is provided with acoustic hood.
The conveying gallery of described production line and the open-air equipment of arranging, all adopt the sealing sound insulating structure, described sealing sound insulating structure adopts the multi-layer compound structure of color steel rock wool-steel plywood, centrifugally glass-wool plate, the dustproof film of PVC, zinc-plated braiding silk screen, glass cloth and zinc-plated die mould orifice plate.
The present invention adopts technique scheme, strong noise workshops such as cement grinding mill room are taked noise reduction measures such as noise reduction targetedly, sound-absorbing, sound insulation, equipment ventilation and heat needs had both been satisfied, noise of equipment overseas publicities such as ball mill, centrifugal blower have been controlled again, effectively reduce the pollution of noise, ensure the stable operation of grinding production line environment.
Description of drawings
Below expressed content of each width of cloth accompanying drawing of this specification and the mark among the figure are briefly explained:
Fig. 1 is the structural representation that mill of the present invention room interior walls is installed sound absorber;
Fig. 2 is the layout drawing of the sound absorber among Fig. 1;
Fig. 3 is the mill room among the present invention and the floor plan of ball mill;
Fig. 4 is the structural representation of the main motor ventilation pipe between main motor;
Fig. 5 is the structural representation of flooring ventilating duct;
Fig. 6 is the monitoring point layout drawing in the application example of the present invention.
Be labeled as among the figure:
1, mill room, 2, ball mill, 3, blower fan, 4, sound absorber (sound eliminating tile), 5, special-purpose noise elimination passage, 6, anechoic sheet, 7, arc retaining sound wall, 8, the flooring air vent, 9, the sound insulation gate, 10, main motor ventilation pipe, 11, main motor, 12, between main motor.
The specific embodiment
Contrast accompanying drawing below, by description to embodiment, to effect and operation principle, the manufacturing process of the mutual alignment between the shape of the specific embodiment of the present invention such as related each member, structure, the each several part and annexation, each several part and manipulate method etc., be described in further detail, inventive concept of the present invention, technical scheme had more complete, accurate and deep understanding to help those skilled in the art.
The of the present invention structure expressed as Fig. 1 to Fig. 5, the present invention is a kind of noise reduction system of cement grinding production line, described production line comprises mill room 1, ball mill 2, carries gallery.
The present invention monitors the actual noise value in the strong noise equipment operation processes such as ball mill 2, centrifugal blower 3, and each noise source of modeling analysis is taked prophylactico-therapeutic measures targetedly to the situation that influences of plant area's acoustic environment.
In order to solve the problem that exists at the described present known technology of this specification background technology part and to overcome its defective, realize of the influence of control appliance noise to environment, satisfy each workshop ventilation and heat needs, ensure the goal of the invention of grinding production line stable operation, the technical scheme that the present invention takes is:
Extremely shown in Figure 5 as Fig. 1, this noise reduction system of cement grinding production line provided by the present invention, described mill room 1 is a full-closed structure; On the interior walls in mill room 1, be provided with sound absorber 4, described sound absorber 4 be a platy structure, and described sound absorber 4 is supported on by connector on the wall in mill room 1, and described sound absorber 4 is parallel with the between the walls that grinds room 1 and be provided with the gap.Mill room 1 interior walls is installed sound absorber 4, and promptly sound eliminating tile reduces the grinding machine noise and outwards propagates.
Sound absorber 4 is pressed the arrangement setting of Fig. 2.
Adopt technique scheme, strong noise workshops such as cement grinding mill room are taked noise reduction measure such as noise reduction, sound insulation targetedly, equipment ventilation and heat needs had both been satisfied, noise of equipment overseas publicities such as ball mill, centrifugal blower have been controlled again, effectively reduce the pollution of noise, ensure the stable operation of grinding production line environment.
Below be concrete exemplifying embodiment of the present invention, following measure taked in cement grinding workshop noise pollution control, implementing when of the present invention reference and selecting for use for those skilled in the art:
Embodiment one:
As shown in Figure 3, the structure at the gate in mill of the present invention room 1 is the heavy body double-layer seal sound insulation of flat-open type gate 9.The heavy body double density sound insulation of flat-open type gate 9 is installed, and oise insulation factor reaches STC35dB.
Embodiment two:
The window of the natural lighting in mill of the present invention room 1 adopts the double-deck fixed window of PVC.
Embodiment three:
Establish vent window on the body of wall in mill of the present invention room 1, described vent window is provided with bend muffler.
Embodiment four:
The noise elimination ventilating duct is established at the body of wall top in mill of the present invention room 1.
Body of wall is established the noise elimination ventilating duct in mill roof portion, and oise insulation factor reaches STC35dB, satisfies ventilation, noise elimination needs.
Mill roof layer is established the noise elimination passage, satisfies the power house ventilation needs.
Embodiment five:
The main motor 11 in mill of the present invention room 1 and bistrique place establish special-purpose noise elimination passage 5, and the anechoic sheet 6 of interlaced arrangement is installed in the described special-purpose noise elimination passage 5.
As shown in Figure 3, the structure and the distribution of 0 ± 0.00 plane noise elimination passage in cement grinding mill room 1 and arc retaining sound wall.
Embodiment six:
As shown in Figure 3, the side outside special-purpose noise elimination passage 5 of the present invention is positioned at mill room 1 is established arc retaining sound wall 7, and the arc convex direction of described arc retaining sound wall 7 is outside mill room 1.
Establish special-purpose noise elimination passage 5 at miller's motor 11 and bistrique place factory building, the anechoic sheet of interior installation interlaced arrangement satisfies equipment ventilation and heat needs; Establish arc retaining sound wall 7 in the noise elimination passage outside, reduce the noise that leaks all around to propagating.
Embodiment seven:
As shown in Figure 4, above the main motor 11 in mill of the present invention room 1, establish main motor ventilation pipe 10 pipes and be connected to the powder concentrator air inlet.
The cement grinding mill room utilizes process equipment to add forced ventilation, adds Φ 1.2m ventilation duct and cause the powder concentrator air inlet above main motor, utilizes existing process equipment to carry out the forced ventilation heat radiation.
Embodiment eight:
As shown in Figure 5, each the floor face in mill of the present invention room 1 is provided with air vent 8.
Under the prerequisite of satisfy maintenance at each floor face, passing through, utilize depth of building to increase air vent 8, realize gravity-flow ventilation, satisfy and produce needs.
Embodiment nine:
The vibratory equipment of production line of the present invention is provided with the vibration damping basis;
Vibratory equipments such as centrifugal blower are added the vibration damping basis, the influence of abatement apparatus vibration.
Embodiment ten:
The non-standard pipeline of all blower fan inlet and outlets of production line of the present invention is provided with flexible connection structure; The dust collecting fan exhaust outlet all installs silencer additional, and the open-air bag filter pulse valve of arranging is provided with acoustic hood.
Embodiment 11:
The conveying gallery of production line of the present invention and the open-air equipment of arranging, all adopt the sealing sound insulating structure, described sealing sound insulating structure adopts the multi-layer compound structure of color steel rock wool-steel plywood, centrifugally glass-wool plate, the dustproof film of PVC, zinc-plated braiding silk screen, glass cloth and zinc-plated die mould orifice plate.
Adopt new materials such as color steel rock wool-steel plywood, centrifugally glass-wool plate, the dustproof film of PVC, zinc-plated braiding silk screen, glass cloth and zinc-plated die mould orifice plate to seal the sound insulation design to carrying gallery, the open-air equipment of arranging (can produce noise); Belt feeder carries gallery to adopt the omnidistance sealing of lightweight steel construction, and inside adds sound absorber.
Concrete implementation result introduction of the present invention:
Below for the present invention after the cement grinding production line of a cement production enterprise is implemented, environmental protection inspection and acceptance monitoring situation, as shown in Figure 6, wherein, workshop is the cement grinding mill room.△ is sensitive spot noise monitoring point position; ▲ be factory circle noise monitoring point position.
Monitoring result is as follows: unit: dB (A)
| Measuring point | Before the improvement | After the improvement | Measuring point | Before the improvement | After the improvement |
| Numbering | Daytime/night | Daytime/night | Numbering | Daytime/night | Daytime/night |
| Z1 | 70.9/ | 51.1/48.2 | Z6 | 70.3/ | 47.3/48.3 |
| Z2 | 66.0/ | 50.1/42.9 | Z7 | 70.1/ | 57.7/45.2 |
| Z3 | 61.4/ | 50.0/47.5 | Z8 | 65.3/ | 50.0/45.7 |
| Z4 | 63.5/ | 49.8/44.9 | Z9 | 68.9/ | 47.7/41.6 |
| Z5 | 64.9/ | 48.3/43.6 | Z10 | 63.8/ | 45.2/42.7 |
The examination monitoring result shows, check and accept during the monitoring, 6 factory's circle noise monitoring put round the clock that the noise equivalent sound level all reaches " factory circle of industrial enterprise noise criteria " (GB12348-90) in the II class standard, 4 noise-sensitive put round the clock that the noise equivalent sound level all reaches 2 class standards among " standard of environmental noise of urban area " (GB 3096-93).
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or design of the present invention and technical scheme are directly applied to other occasion without improving, all within protection scope of the present invention.
Claims (1)
1. noise reduction system of cement grinding production line, described production line comprise mill room (1), ball mill (2), carry gallery, it is characterized in that:
Described mill room (1) is a full-closed structure; On the interior walls in mill room (1), be provided with sound absorber (4), described sound absorber (4) be a platy structure, sound absorber (4) is supported on the wall in mill room (1) by connector, described sound absorber (4) is parallel with the between the walls that grinds room (1) and be provided with the gap;
The structure at the gate in described mill room (1) is the heavy body double-layer seal sound insulation of flat-open type gate (9); The window of the natural lighting in described mill room (1) adopts the double-deck fixed window of PVC;
Establish vent window on the body of wall in described mill room (1), described vent window is provided with bend muffler;
The noise elimination ventilating duct is established at the body of wall top in described mill room (1);
The main motor (11) in described mill room (1) and the head place of ball mill (2) establish special-purpose noise elimination passage (5), and the anechoic sheet (6) of interlaced arrangement is installed in the described special-purpose noise elimination passage (5); Side outside described special-purpose noise elimination passage (5) is positioned at mill room (1) is established arc retaining sound wall (7), and the arc convex direction of described arc retaining sound wall (7) is outside mill room (1);
Main motor (11) top in described mill room (1) is established main motor ventilation pipe (10) and is connected to the powder concentrator air inlet;
Each floor face in described mill room (1) is provided with flooring air vent (8);
The vibratory equipment of described production line is provided with the vibration damping basis;
The non-standard pipeline of all blower fan inlet and outlets of described production line is provided with flexible connection structure; The dust collecting fan exhaust outlet all installs silencer additional, and the open-air bag filter pulse valve of arranging is provided with acoustic hood;
The conveying gallery of described production line and the open-air equipment of arranging, all adopt the sealing sound insulating structure, described sealing sound insulating structure adopts the multi-layer compound structure that comprises color steel rock wool-steel plywood, centrifugally glass-wool plate, the dustproof film of PVC, zinc-plated braiding silk screen, glass cloth and zinc-plated die mould orifice plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101447172A CN101745455B (en) | 2009-08-27 | 2009-08-27 | Noise reduction system of cement grinding production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101447172A CN101745455B (en) | 2009-08-27 | 2009-08-27 | Noise reduction system of cement grinding production line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101745455A CN101745455A (en) | 2010-06-23 |
| CN101745455B true CN101745455B (en) | 2011-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101447172A Expired - Fee Related CN101745455B (en) | 2009-08-27 | 2009-08-27 | Noise reduction system of cement grinding production line |
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| CN (1) | CN101745455B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104526574A (en) * | 2014-11-20 | 2015-04-22 | 盐城市丰特铸造机械有限公司 | Guard board noise-reduction installation method |
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| CN101745455A (en) | 2010-06-23 |
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Granted publication date: 20111130 Termination date: 20170827 |
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