Steam chamber type fluff forming groove

Abstract

The utility model relates to the field of viscose staple fiber production, in particular to a steam chamber type fluff forming groove which comprises a machine frame, a box body and a steam chamber, the box body is installed on the machine frame, and the steam chamber is installed on the lower portion of the box body. The box body is provided with a feeding hole, a filament distributor, a groove body, a spraying device, an exhaust system, a hair baffle and a discharging hole; a notch group is arranged at the bottom of the tank body, a pressing plate is arranged above the notch group, and a base plate is arranged between the notch group and the pressing plate; a steam chamber is connected below the bottom of the tank body; and the notch group is communicated with the steam chamber. The box type steam type is adopted, the problem of pressure decrease of the original tube nest can be solved through the arrangement of the groove opening set at the bottom of the groove body, the steam pressure is constant, the cooking effect is balanced, the yarn hanging phenomenon is greatly reduced through the spraying device, the felt generation effect is good, the efficiency is better, and the overall quality of the felt is improved.

Description

Technical Field

[0001] The utility model relates to the field of viscose staple fiber production, in particular to a steam chamber type fluff forming tank. Background Art

[0002] In viscose staple fiber production, the fibers are cut into short fibers. These fibers, mixed with flushing water, are then piped into a fluff forming tank, where they are steamed. CS2 and H2S evaporate at high temperatures and are discharged through the exhaust system. The steamed fibers, propelled by the steam and water flow, form a felt that is then discharged from the tank outlet and sent to the next process. Existing fluff forming tanks are prone to the problem of slugging on the tank walls during production. These slugging fall off, forming yellow threads that affect the quality of the felt. Furthermore, existing fluff forming tanks utilize multiple steam pipes at the bottom of the tank body. The perforations in these pipes create higher pressure at the inlet end than at the distal end, resulting in uneven steaming. Furthermore, the higher pressure at the proximal end leads to rapid wear and larger apertures, further exacerbating the difference in steam volume between the two ends. This uneven steaming results in uneven steaming, which in turn leads to incomplete impurity removal and uneven thickness of the resulting felt, impacting subsequent processing. There is an urgent need for a new fluff forming machine that can address the issues of slugging on the tank walls, uneven steaming, and uneven thickness of the resulting felt. Utility Model Content

[0003] In order to solve the problems of existing pile forming machines such as hanging threads on the groove wall, uneven cooking and uneven thickness of the formed felt, a steam chamber type pile forming groove is provided, which can solve the problems of hanging threads on the groove wall and uneven cooking.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A steam chamber type fluff forming trough comprises a frame, a box body, and a steam chamber. The box body is mounted on the frame, and the steam chamber is mounted below the box body. The box body is provided with a feed inlet, a wire distributor, a trough body, a spray device, an exhaust system, a fluff baffle, and a discharge port. A notch group is provided at the bottom of the trough body, a pressing plate is provided above the notch group, and a pad is provided between the notch group and the pressing plate.

[0006] The bottom of the tank body is connected to the steam chamber, and the notch group is communicated with the steam chamber.

[0007] Preferably, the length direction of the notch group is perpendicular to the advancing direction of the material in the trough body.

[0008] Preferably, a plurality of rows of notch groups are provided at the bottom of the trough body.

[0009] Preferably, each column of the slot groups includes a plurality of slots.

[0010] Preferably, the pressing plate is a strip-shaped plate, and the width of the pressing plate is greater than the width of the notch group.

[0011] Preferably, one side surface of the pressing plate is an inclined surface, and the inclined surface faces the direction of the feed inlet.

[0012] Preferably, the pad is provided with a plurality of U-shaped openings.

[0013] Preferably, the U-shaped opening on the pad is facing the discharge port.

[0014] Preferably, the spraying device is arranged on the four side walls above the trough body.

[0015] Beneficial effects of the utility model:

[0016] 1. The spray device flushes the side wall of the tank body to form a water curtain to reduce fiber adhesion and avoid yellow blocks formed by long-term adhesion. The water curtain uses sealed water, and the water curtain water forms a water-sealed structure with the tank body to seal the fluff forming tank, eliminate the overflow of harmful gases, improve the recovery effect of carbon disulfide in the fiber, and have a certain defoaming effect.

[0017] 2. The notch assembly is located at the bottom of the tank, with a pressure plate positioned above it. A U-shaped pad is placed between the notch assembly and the pressure plate. The sides of the pressure plate are sloped, allowing steam to escape through the steam outlet gap and then be blown upward along the inclined surface of the pressure plate, steaming the fibers. A steam chamber structure ensures constant pressure at all locations, resulting in a balanced steaming effect. The steam chamber, located at the bottom of the tank, provides ample space to stabilize the steam pressure.

[0018] The utility model adopts a box-type steam type. The arrangement of the notch group at the bottom of the tank body can eliminate the pressure decrease problem of the original tube array. The steam pressure is constant and the cooking effect is balanced. The spraying device greatly reduces the phenomenon of hanging wire. The felt generation effect is good and the efficiency is better, which improves the overall quality of the felt. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the main view of the utility model (material direction);

[0020] Figure 2 It is a top view of the utility model;

[0021] Figure 3 This is a schematic diagram of the bottom structure of the tank body in the utility model;

[0022] Figure 4 For this utility model Figure 1 Schematic diagram of the structure at H in the middle;

[0023] Figure 5 This is a schematic diagram of the notch distribution in the utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the medium pressure plate of the utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the middle pad of the utility model.

[0026] In the figure: hair baffle 1, frame 2, box body 3, trough body 4, notch group 4-1, notch 4-11, pressing plate 4-2, pad 4-3, U-shaped opening 4-31, steam outlet gap 4-4, steam chamber 5, spray device 6, exhaust system 7, wire cloth 8, feed port 9, discharge port 10. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-7 The present invention will now be described in further detail. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

[0028] like Figure 1-7 As shown, a steam chamber type fluff forming trough includes a frame 2, a box body 3, and a steam chamber 5. The box body 3 is installed on the frame 2, and the steam chamber 5 is installed at the lower part of the box body 3; the box body 3 is provided with a feed port 9, a wire cloth 8, a trough body 4, a spray device 6, an exhaust system 7, a hair baffle 1, and a discharge port 10; a notch group 4-1 is provided at the bottom of the trough body 4, a pressure plate 4-2 is provided above the notch group 4-1, and a pad 4-3 is provided between the notch group 4-1 and the pressure plate 4-; the bottom of the trough body 4 is connected to the steam chamber 5, and the notch group 4-1 is communicated with the steam chamber 5.

[0029] The length direction of the slot group 4-1 is perpendicular to the direction of material flow in the trough body 4. Multiple rows of slot groups 4-1 are provided at the bottom of the trough body 4. Each row of slot groups 4-1 includes multiple slots 4-11. The pressure plate 4-2 is a strip-shaped plate, and the width of the pressure plate 4-2 is greater than the width of the slot group 4-1. One side of the pressure plate 4-2 is an inclined surface, which faces the direction of the feed port 9. The pad 4-3 is provided with multiple U-shaped openings 4-31. The U-shaped openings 4-31 on the pad 4-3 open toward the discharge port 10. The spray device 6 is provided on the four side walls above the trough body 4.

[0030] In the present invention, no support beam is installed inside the trough body 4. The support of the trough body 4 relies on the external support of the trough body 4 to reduce the adhesion of fibers during the production process. Two movable baffles 1 are provided at the end of the discharge port 9 of the box body 3. The movable baffles 1 can play a sealing role. After the fibers form felt, the baffles 1 are pushed up and the baffles 1 smooth the felt. The thickness of the steam chamber 5 is 200mm, and a rib is welded on the inner wall. The width of the notch group 4-1 at the bottom of the trough body 4 is 20-50mm. The inclination angle of the inclined surface of the pad 4-3 is 30-50°. The thickness of the pad 4-3 determines the height of the steam outlet gap 4-4. The thickness of the pad 4-3 can be selected in the range of 0.5-3mm. The pressure plate 4-2 and the pad 4-3 are both fastened to the bottom of the trough body 4 with bolts. The thickness of the pad 4-3 can be adjusted according to the working conditions to achieve the ideal effect. The pressure plate 4-2 can also be welded and fixed for use.

[0031] A spray device 6 is provided on the side walls of the interior of the trough 4. The spray device 6 includes a spray pipe with downward-facing water spray holes. Water is sprayed through the water spray holes to form a water curtain, which scours the side walls of the trough 4 to reduce fiber adhesion. It also washes away fibers adhering to the movable baffle 1, preventing them from forming yellow lumps due to long-term adhesion. The water curtain uses sealed water, which forms a water-tight structure with the trough 4, sealing the fluff forming trough, eliminating the escape of harmful gases, improving the recovery of carbon disulfide from the fibers, and also providing a certain defoaming effect.

[0032] Working process:

[0033] The fiber distributor 8 is connected to the material input end of the tank body 4, and the water-fiber mixture is transported into the fiber distributor 8 through the feed port 9. The fiber distributor 8 swings left and right to spread the fibers all over the tank body 4, so that the fiber mixture can be fully and evenly steamed in the tank body 4.

[0034] The bottom of the tank body 4 is provided with a notch group 4-1. A steam chamber 5, located below the bottom of the tank body 4 and connected to the notch group 4-1, supplies steam to the tank body 4 to steam the fiber mixture. The steam is directed upward by the inclined surface of the pressing plate 4-2, steaming the fibers and water. The structure of the steam chamber 5 ensures constant pressure at all locations, ensuring a uniform steaming effect. The steam cooking removes carbon disulfide and hydrogen sulfide from the mixed liquid, which are then recovered through the exhaust system 7 to the gas recovery system.

[0035] While the fiber mixture is being cooked, the spray device flushes the side walls of the tank to form a water curtain to reduce fiber adhesion and the formation of yellow lumps.

[0036] Two movable baffles 1 are installed at the end of the discharge port 10. The movable baffles 1 can play a sealing role and straighten the felt at the same time. After the fibers form felt, the baffles 1 are pushed up. The cooked fibers, pushed by the steam and water flow, form felt and pass through the baffles 1 to be discharged from the discharge port 10 and enter the next process.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steam chamber type fluff forming tank, comprising a frame, a box, and a steam chamber, wherein the box is mounted on the frame and the steam chamber is mounted below the box; the box is provided with a feed inlet, a wire distributor, a tank body, a spray device, an exhaust system, a fluff baffle, and a discharge port; characterized in that A notch group is provided at the bottom of the trough body, a pressure plate is provided above the notch group, and a pad is provided between the notch group and the pressure plate; The bottom of the tank body is connected to the steam chamber, and the notch group is communicated with the steam chamber.

2. A steam chamber type fluff forming tank according to claim 1, characterized in that: The length direction of the notch group is perpendicular to the forward direction of the material in the trough body.

3. The steam chamber type pile forming tank according to claim 1, characterized in that: A plurality of rows of notch groups are arranged at the bottom of the tank body.

4. The steam chamber type pile forming tank according to claim 3, characterized in that: Each column of the slot group includes a plurality of slots.

5. The steam chamber type pile forming tank according to claim 1, characterized in that: The pressing plate is a strip-shaped plate, and the width of the pressing plate is greater than the width of the notch group.

6. The steam chamber type pile forming tank according to claim 1, characterized in that: One side surface of the pressing plate is an inclined surface, and the inclined surface faces the direction of the feed inlet.

7. The steam chamber type pile forming tank according to claim 1, characterized in that: The backing plate is provided with a plurality of U-shaped openings.

8. The steam chamber type pile forming tank according to claim 7, characterized in that: The U-shaped opening on the pad is facing the discharge port.

9. The steam chamber type pile forming tank according to claim 1, characterized in that: The spraying device is arranged on the four side walls above the tank body.

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