Unit for producing of high-strength viscose cord

FIELD: textile and chemical industry, in particular, noise-absorbing guard for textile machines.

SUBSTANCE: unit for producing of high-strength viscose cord has mechanism for blocked lifting of encapsulation shield and forced drawing ventilation valve, air duct for forced drawing ventilation equipped with valve, air duct for removal of air-vapor mixture from first plasticizing bath pipes, encapsulation shield positioned at side where thread is formed, transverse and longitudinal partitions, thread forming set of equipment, air duct of permanently functioning drawing ventilation system and encapsulating shield positioned at side where drawing, collecting and transportation of thread are performed. Each of encapsulation shields has carcass formed as parallelepiped defined by front and rear walls of panel, each made U-shaped. There is slit-type perforation on front wall, with perforation coefficient being accepted equal to or exceeding 0.25. Panel walls are fixed with respect to one another by means of vibration damping covers. Noise-absorbing material of noise-damping members is made in the form of plate made from basalt-base mineral wool, or mineral wool, or basal wool, or glass wool with glass wool facing, or foamed polymer such as polyethylene or polypropylene. Noise-absorbing member is faced over its entire surface with acoustically transmitting material.

EFFECT: increased efficiency in reducing of noise level and increased efficiency of unit.

8 cl, 3 dwg

 

The invention relates to textile and chemical industries and applies a noise-absorbing fence textile machines.

Famous spinning machine as the USSR №1804494, D01D 5/06, 1993, containing spinning kit, podkupolnoe space, shields, crypto, ducts constant and reinforced suction containing the sound barrier wall, fixed on on revealing the parts of the machine (prototype).

A disadvantage of the known device is relatively low flow due to the presence of high level of noise in the halls, equipped units.

The technical result is increased productivity of the unit and the effectiveness of noise reduction.

This is achieved in that the unit for the production of high tenacity viscose cord containing the mechanism interlocked lifting of crypto and enhanced valve exhaust ventilation, duct enhanced exhaust ventilation valve, a duct for removing air-steam mixture from tube bath first plasticization, shield crypto-side molding, filament, transverse and longitudinal partitions, the set of equipment for molding, filament, duct permanent ventilation and shield crypto by hand pulling, gathering and transportation of threads, each of the shields crypto contains the Arkas in the form of a parallelepiped, formed by front and rear wall panels, between which is located an absorbent material.

1 shows a frontal section of the proposed unit for the production of high tenacity viscose rayon cord figure 2 - sound insulation construction shield crypto; figure 3 is a transverse section of the sound-absorbing duct.

The unit for the production of high tenacity viscose cord (figure 1) contains a mechanism 1 for interlocked lifting of crypto and enhanced valve exhaust ventilation; air duct 2 enhanced local exhaust ventilation; valve 3, the air duct 4 to remove the air-steam mixture from tube bath first plasticization; shield crypto 5 by forming filaments; a transverse partition 6; hardware set 7 for forming filaments; the duct 8 permanent exhaust ventilation; suction holes 9 and 10 for both sides of the machine; the shield crypto 11 by pulling, gathering and transportation of the thread; the working space 12 of the machine; longitudinal partition 13.

Each of the shields crypto 5 and 11 includes a frame 14 (2) and located in the internal cavity of the sound-absorbing element 16. The frame 14 is in the form of a parallelepiped formed by the front 14 and rear 15 wall panels, each of which has a U-shape, with the side edges 17, and on the first the day the wall has a slit perforation 18 and 19, made in the form of rectangles and located the ranks of the width of the rows of b1and b2and the distance between them is h1and h2and adjacent rows are offset, and the number of slits in one row is even and the other odd. The perforation ratio is equal or greater than 0.25. Wall panels 14 and 15 are fixed between fibrogenesis caps 20 and 21, which can be performed with cells and have a U-shaped form.

As a sound absorbing material, sound-absorbing element 16 is used slabs of basalt mineral wool on the basis of type "Rockwool", or mineral wool of type "URSA", or basalt wool type P-75, or glass wool lined with glass wool material, or a foamed polymer, such as polyethylene or polypropylene, and an absorbent element across its surface lined with acoustically transparent material, such as fiberglass type EZ-100 or a-type polymer Povide". As a sound absorbing material, sound-absorbing element used plates on the basis of aluminothermic alloys with subsequent filling them with titanium hydride or by air with a density in the range of 0.5...0.9 kg/m3with the following mechanical properties; compressive strength in the range 5...10 MPa, a bending strength in the range of 10 to 20 MPa. The technology of their receipt of the OS is avana on the application of powder and foundry metallurgy methods in relation to luminestra alloys with subsequent filling them with titanium hydride or air. Compared with organic foams this technology allows you to provide the following material properties: non-toxicity, low water absorption and resistance, as compared with the alloys of the aluminum - lower density, lower thermal conductivity, lower the conductivity of the sound and lower the conductivity.

The front 14 and rear 15 of the wall frame can be made of stainless steel or galvanized sheet with a thickness of 0.7 mm with a polymeric protective and decorative coating type "Pural" thickness of 50 μm or "Polyester" with a thickness of 25 μm, or aluminum sheet thickness of 1.0 mm and a coating thickness of 25 microns.

The ratio of the height h of the frame to its width b is in an optimal ratio of h/b=1,0...2,0; and the ratio of the thickness s′ frame Assembly to its width b is optimal for values: s′/b=0,1...0,15, and the ratio of the thickness s of the sound-absorbing element to the thickness s′ frame Assembly is in an optimal ratio of: s/s′=0,4...1,0.

Vibrationfree cover 20 and 21, the retaining walls 14 and 15 of the panel can be made of elastomer, a polyurethane or polyethylene, fibreboard, chipboard material, or gipsoshlakobetona, or elastic sheet of vibration damping material, the internal loss factor of not less than 0.2, or composite material, or VL is stikuta type "agate", "Antifibrin", "Swim". Cap 4 and 5 panels also serve to lock the adjacent panels during installation products, including in their composition, such as acoustic screens, as well as for damping acoustic screens from external influences and to isolate the metal profile and aluminum panels to prevent galvanic corrosion. Walls 14 and 15 may be made of sheet aluminum-magnesium alloy type AMGS a thickness of 1 mm, which comes in rolls coated by powder coating a polymer coating, and coating quality meets state standards GOST 9.410-88, GOST 30246-94. Based decorative coating can be powder paint such manufacturers as: "Pulvent", "TEKNOS", "BISHON", "Beckers" and others, and the color and luster of the coating can be chosen according to the catalog of paints manufacturers (RAL colours). After painting on the floor is coated with the protective film, which provides the possibility of mechanical processing tape (cutting, bending, punching, cutting), as well as transportation without damage to the coating (film can be removed from the panel directly in front of her installation).

As the sound-absorbing material is also used ceramics or composite materials with a porosity in the range optimal for the masks: 30...45%, or elements in the form of layer-by-layer and cross-winding of the porous yarn wound on acoustically transparent frame, such as wire frame, or elements of the hard porous sound-absorbing material, such as metalloboranes, penelopina or stone, shell (not shown).

Each of the ducts 2 and 8 may be made rectangular, square or round shape (Fig 3) with soundproof walls: external 22 with a diameter of D1and 23 internal diameter D2between which is placed an absorbent material 24 and the insulating layer 25, separated by a wall 26. Depending on the operating conditions of the unit possible arrangement of the ducts 2 and 8, or only absorbent layer 24, or only the insulating layer 25 without a separating wall 26 (not shown).

The unit for the production of high tenacity viscose cord works as follows.

In workshops, equipped with such units have heat and flagovedeniya, due to the looseness of closed shelters and job openings open sections (no more than 1 shield per unit), as well as the exposed surfaces of the wash solutions and Avivah baths. Sources of heat or moisture are also motors, the heated surfaces of equipment and services, wetted surface and the floor.

Spinning Assembly machine has a longitudinal partition 13, which separates the side molding from the side of the transport threads and transverse partitions 6 side molding separating section of the machine from one another. The machine is equipped with two exhaust ducts 2 and 8, overlying the top of her workspace 12. Through the duct 8 is continuously removed from podkupolnogo space of the machine from both sides 7800 m3/h of air and the suction air through leaks in the valves altitude of 1,200 m3/H. the Second duct 2 is for additional enhanced suction (6000 m3/h on 1 machine) of the expandable section of the machine (side molding fiber). To do this, each section has a valve 3 with a water seal. The raising and lowering of the valve takes place through the mechanism 1 and the air piston cylinder and interlocked with shields shelter on the side molding. When raising the shield in any section of the machine rises, the valve in the duct enhanced exhaust ventilation above the appropriate section.

Constant suction air provide for the removal of air from under the shelter of pickup rollers (300 m3/h at one shelter), of the baths of the first and second leaching and avevano (respectively 5000, 2000, and 2000 m3/h of air per tub), of the tubes of plastificated is authorized bath (150 m 3/h on the same machine), and also through the umbrella over drying drums (2000 m3/h). Plastification bath equipped with a dual ventilation system. Constant suction is removed from under the drooping lid baths 150 m3/h of air and 1800 m3/h due to intake through leaks closed valve for enhanced ventilation. Special throttle valve interlocked with pneumatic lifting the lid of the tub. When lifting the cover, the throttle valve is automatically opened and reinforced suction is removed 9000 m3/h of air (one tub). Each of the shields crypto 5 and 11 operates as follows. Sound energy passing through the perforated wall 14 and an absorbent layer 16 falls on the wall 15. Partially reflected sound waves from the walls 14 are again on the absorber 16. The transfer of sound energy into heat occurs in the pores of the absorbent material, which represents a model of cavities "Helmholtz", where energy losses occur due to friction oscillating with the frequency of excitation of the mass of air in the mouth cavity wall of the cap, having a form of an extensive network of pores of the material. To prevent rashes soft absorbers provided by the glass, such as type EZ-100, located between the absorber and the wall (drawing n is shown). Similarly, there is the work of sound insulation of ducts 2 and 8.

Continuously sucked from the spinning machines air, together with the steam-water mixture is sucked off from Domostroitelnaya baths and plastification tube spinning machines, is directed to a system for regeneration of carbon disulfide and hydrogen sulfide. The number of open machines and Domostroitelnaya baths is determined by the process requirements for each specific object (usually taken 20%). In addition to these local suction of air is provided by mechanical General exhaust ventilation to remove air from the upper zone, providing a single air exchange. To maintain the required parameters air fresh air is supplied into the shop from conditioning.

1. The unit for the production of high tenacity viscose cord containing the mechanism interlocked lifting of crypto and enhanced valve exhaust ventilation, duct enhanced exhaust ventilation valve, a duct for removing air-steam mixture from tube bath first plasticization, shield crypto-side molding, filament, transverse and longitudinal partitions, the set of equipment for molding, filament, duct permanent ventilation and shield crypto outside the s stretching, the gathering and transportation of threads, each of the shields crypto contains a frame in the form of a parallelepiped formed by the front and rear wall panels, each of which has a U-shape, and the front wall has a slit perforation, the perforation ratio which is equal to or greater than 0.25, and wall panels connected to each other vibrationfree caps, and as a sound-absorbing material absorbing element used slabs of basalt mineral wool on the basis of, or mineral wool or basalt wool, or glass wool lined with glass wool material, or a foamed polymer, such as polyethylene or polypropylene, and the sound-absorbing element throughout its surface lined with acoustically transparent material.

2. The unit for the production of high tenacity viscose cord according to claim 1, in which the sound-absorbing material absorbing element used plates on the basis of aluminium-containing alloys, followed by filling them with titanium hydride or by air with a density in the range of 0.5-0.9 kg/m3with the following mechanical properties: compressive strength in the range of 5-10 MPa, bending strength in the range of 10-20 MPa.

3. The unit for the production of high tenacity viscose cord according to claim 1, in which the front and rear with Enki frame made of stainless steel or galvanized sheet with a thickness of 0.7 mm with a polymeric protective and decorative coating thickness of 50 μm or a thickness of 25 μm, or aluminum sheet thickness of 1.0 mm and a coating thickness of 25 microns.

4. The unit for the production of high tenacity viscose cord according to claim 1, in which the ratio of the height h of the frame to its width b is in an optimal ratio of h/b=1.0 to 2.0; and the ratio of the thickness s′ frame Assembly to its width b is optimal for values: s′/b=0.1 to 0.15; a ratio of the thickness s of the sound-absorbing element to the thickness s′ frame Assembly is in an optimal ratio of: s/s′=0,4-1,0.

5. The unit for the production of high tenacity viscose cord according to claim 1, in which vibrationfree covers, fixing of wall panels, made of elastomer, a polyurethane or polyethylene, fibreboard, chipboard material, or gipsoshlakobetona, or elastic sheet of vibration damping material, the internal loss factor of not less than 0.2, or composite material, or plastic.

6. The unit for the production of high tenacity viscose cord according to claim 1, in which the sound absorbing material used ceramics or composite materials with a porosity in the range of optimal values: 30-45%.

7. The unit for the production of high tenacity viscose cord according to claim 1, in which the absorbent material is an element in p is layered and cross-winding of the porous filaments, wound on acoustically transparent frame, for example the wire frame.

8. The unit for the production of high tenacity viscose cord according to claim 1, in which the absorbent material is an element of the hard porous sound-absorbing material, such as metalloboranes, penelopina or stones.



 

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The moulder // 2132418

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34 cl, 5 dwg

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