An oven for effectively preventing the blocking of fiber bales

Abstract

The utility model discloses a kind of effective prevention that the oven of fiber package is caked in the field of polyester staple production and manufacturing, including oven body, each heating area and cooling area are provided with a heat exchanger, the conveyor chain plate of transmission fiber product is provided with below each heat exchanger in the oven body, the heat exchanger is plate-fin heat exchanger, the left head of each heat exchanger is connected with hot steam main pipeline through a conveying pipe one, the heat exchanger conveying pipe one of two cooling areas is provided with blanking blind plate, and the heat exchanger conveying pipe one side of two cooling areas is connected with cooling water main pipeline through conveying pipe two, the gas outlet of heat exchanger is set down corresponding conveyor chain plate, and the gas inlet of each heat exchanger is correspondingly provided with a circulating fan.

Description

Technical Field

[0001] This utility model belongs to the field of polyester staple fiber production and manufacturing, and specifically relates to an oven that effectively prevents the fiber pack from caking. Background Technology

[0002] The final step in the post-processing of low-melting-point polyester staple fiber is packaging, which involves packaging the dried fibers. Most factories use a continuous production process for drying and packaging, which means that the fibers are not cooled in time after drying before being packaged into cotton bales. At the same time, most ovens have excess capacity for drying low-melting-point PET fibers.

[0003] This isn't a major problem for ordinary PET fibers, but it's fatal for modified low-melting-point PET fibers. This is because the fibers fail to cool in time, leading to heat buildup inside the packaging bag and causing the fibers to soften and stick together. This invention effectively improves the cooling effect of the fibers before they enter the packaging machine, maintaining good fiber cooling and preventing clumping inside the bag. Utility Model Content

[0004] The purpose of this invention is to provide an oven that effectively prevents fiber packing from caking. The oven is divided into sections, with the first eight sections for heating and the last two sections for cooling. Cooling water is introduced into the cooling section to cool the fibers before they exit the oven.

[0005] The purpose of this utility model is achieved as follows: an oven that effectively prevents fiber packing from caking, comprising an oven body, wherein eight heating zones and two cooling zones are arranged sequentially along the length of the oven body, each heating zone and cooling zone is provided with a heat exchanger, and a conveyor chain plate for transporting fiber products is provided below each heat exchanger in the oven body, wherein the heat exchanger is a plate-fin heat exchanger, and the left end of each heat exchanger is connected to the main hot steam pipeline via a conveying pipe 1, the conveying pipe 1 of the heat exchangers in the two cooling zones is provided with a sealing blind plate, and the side of the conveying pipe 1 of the heat exchangers in the two cooling zones is connected to the main cooling water pipeline via a conveying pipe 2, the height of the sealing blind plate is higher than the height of the connection point between the conveying pipe 2 and the conveying pipe 1, the right end of each heat exchanger is connected to a recovery medium pipe, the gas outlet of each heat exchanger is arranged downwards corresponding to the conveyor chain plate, and a circulating fan is provided corresponding to the gas inlet of each heat exchanger.

[0006] The oven of this invention has an inlet and an outlet at its front and rear ends, respectively. During operation, fibers enter the oven through the inlet, and then a conveyor chain carries the fiber product sequentially through eight heating zones and two cooling zones. These zones are equidistantly distributed within the oven. Hot steam is introduced into the left end of the heat exchanger in the heating zones, and cooling water (chilled water) is introduced into the left end of the heat exchanger in the cooling zones. The hot steam or cooling water is discharged and recovered through a recovery medium pipe via channel two. A circulating fan blows air above channel one of the heat exchangers. The fibers in the first eight heating zones are dried and heated, while a flow regulating valve is installed on the conveyor pipe of the heat exchanger in the heating zones. The fibers in the last two cooling zones are cooled, ensuring that the fibers are cooled before exiting the oven. Compared to existing technologies, the advantages of this invention are: it solves the problem of excessive drying of fibers within the oven, leading to abnormal fiber appearance and feel, and ensures that the fibers are cooled before exiting the oven, preventing fiber caking inside the packaging bag.

[0007] As a further improvement of this utility model, the oven body includes a horizontal top plate, and a left side plate, a partition plate and a right side plate are vertically arranged below the top plate. The heating zone and the cooling zone are both located between the left side plate and the partition plate, and a reinforcing plate is horizontally arranged between the lower part of the left side plate and the partition plate.

[0008] As a further improvement of this utility model, the first conveying pipe, the second conveying pipe, and the recovery medium pipe are all extended out of the top plate.

[0009] As a further improvement of this utility model, the heat exchanger includes a plate bundle, with a left end cap and a right end cap on the left and right sides of the plate bundle, respectively. Several vertical channels (Channel 1) and horizontal channels (Channel 2) are arranged on the plate bundle. Channel 2 is arranged along the width direction of the drying oven, and its left and right ends are connected to the left and right end caps, respectively. The upper and lower ends of channel 1 are the gas inlet and gas outlet, respectively. The axes of channel 1 and channel 2 are perpendicular. Hot steam or chilled water is introduced into channel 2 for drying or cooling the fibers.

[0010] As a further improvement of this utility model, the first conveying pipe includes an upper pipe body and a lower pipe body. Flange 1 and Flange 2 are respectively provided at the lower end of the upper pipe body and the upper end of the lower pipe body. A sealing blind plate is provided between flange 1 and flange 2. Flange 1 and flange 2 are fixed together by several fasteners evenly distributed circumferentially. A sealing ring is provided on the upper and lower sides of the sealing blind plate corresponding to flange 1 and flange 2, respectively. The first conveying pipe in the cooling zone is blocked by the sealing blind plate, and chilled water enters the heat exchanger through the second conveying pipe to cool the fibers.

[0011] As a further improvement of this utility model, several observation windows are provided on the left side plate to facilitate observation of the interior of the oven.

[0012] As a further improvement of this utility model, each of the circulating fans is located between the partition plate and the right side plate. Each circulating fan has an upper through hole and a lower through hole on the partition plate. A fan duct is connected to the lower through hole. The air outlet of the circulating fan is connected to the upper through hole via an air outlet pipe, and the air inlet of the circulating fan is connected to the fan duct via an air inlet pipe. The circulating fans are fixed to the partition plate and the right side plate by brackets. The circulating fans blow air above the heat exchanger's channel through the air outlet pipe, and return air to the air inlet pipe from the lower outlet of the channel. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0015] Figure 3 This is a three-dimensional structural diagram of the heat exchanger's plate bundles.

[0016] Figure 4 for Figure 3 A magnified view of a portion of the image.

[0017] Figure 5 This is a top view of the heat exchanger.

[0018] Figure 6 This is a diagram showing the distribution of heating and cooling zones within the oven.

[0019] The components include: 1. Oven body; 101. Top plate; 102. Left side plate; 103. Divider plate; 104. Right side plate; 105. Reinforcing plate; 2. Heating zone; 3. Cooling zone; 4. Heat exchanger; 401. Left end cap; 402. Right end cap; 403. Plate bundle; 403a. Channel 1; 403b. Channel 2; 5. Conveyor chain plate; 6. Fiber product; 7. Conveyor pipe 1; 7a. Upper pipe body; 7a1. Flange 1; 7b. Lower pipe body; 7b1. Flange 2; 8. Steam main pipeline; 9. Conveyor pipe 2; 10. Cooling water main pipeline; 11. Recovery medium pipe; 12. Circulating fan; 13. Sealing ring; 14. Observation window; 15. Upper through hole; 16. Lower through hole; 17. Air duct; 18. Air outlet pipe; 19. Air inlet pipe; 20. Support; 21. Sealing blind plate. Detailed Implementation

[0020] like Figure 1-6As shown, an oven for effectively preventing fiber packing from caking is provided, comprising an oven body 1. Eight heating zones 2 and two cooling zones 3 are arranged sequentially along the length of the oven body 1. The oven body 1 includes a horizontal top plate 101. A left side plate 102, a partition plate 103, and a right side plate 104 are vertically arranged below the top plate 101. The heating zones 2 and cooling zones 3 are located between the left side plate 102 and the partition plate 103. A reinforcing plate 105 is horizontally arranged between the lower parts of the left side plate 102 and the partition plate 103. Several observation windows 14 are provided on the left side plate 102. For easy observation of the oven's interior; each heating zone 2 and cooling zone 3 is equipped with a heat exchanger 4. Inside the oven body 1, below each heat exchanger 4, is a conveyor chain plate 5 for transporting fiber products 6. The heat exchangers 4 are plate-fin type. The left end cap 401 of each heat exchanger 4 is connected to the main hot steam pipeline 8 via a conveying pipe 7. The conveying pipes 7 of the heat exchangers 4 in the two cooling zones 3 are equipped with blind flanges 21, and the sides of the conveying pipes 7 of the heat exchangers 4 in the two cooling zones 3 are connected to the main cooling water pipeline 10 via a second conveying pipe 9. The height of the blind flanges 21 is higher than the connection point between the second conveying pipe 9 and the first conveying pipe 7. The right end cap 402 of each heat exchanger 4 is connected to a recovery medium pipe 11. The first conveying pipe 7, the second conveying pipe 9, and the recovery medium pipe 11 are all... The top plate 101 is extended; the conveying pipe 7 includes an upper pipe body 7a and a lower pipe body 7b. The lower end of the upper pipe body 7a and the upper end of the lower pipe body 7b are respectively provided with flange 7a1 and flange 7b1. A blind flange 21 is provided between flange 7a1 and flange 7b1. Flange 7a1 and flange 7b1 are fixed together by several fasteners evenly distributed along the circumference. A sealing ring 13 is provided on the upper and lower sides of the blind flange 21 corresponding to flange 7a1 and flange 7b1 respectively. The conveying pipe 7 of the cooling zone 3 is blocked by the blind flange 21. The chilled water enters the heat exchanger 4 through the second conveying pipe 9 to cool the fibers. The gas outlet of the heat exchanger 4 is set downwards corresponding to the conveying chain plate 5. A circulating fan 12 is set corresponding to the gas inlet of each heat exchanger 4.

[0021] The heat exchanger 4 includes a plate bundle 403. A left end cap 401 and a right end cap 402 are respectively located on the left and right sides of the plate bundle 403. Several vertical channels 403a and horizontal channels 403b are provided on the plate bundle 403. Channels 403b are arranged along the width of the drying oven, and their left and right ends are connected to the left end cap 401 and the right end cap 402 respectively. The upper and lower ends of channels 403a are the gas inlet and gas outlet, respectively. The axes of channels 403a and 403b are perpendicular. Hot steam or chilled water is introduced into channels 403b for drying or cooling the fibers.

[0022] Each circulating fan 12 is located between the partition plate 103 and the right side plate 104. Each circulating fan 12 has an upper through hole 15 and a lower through hole 16 on the partition plate 103. A duct 17 is connected to the lower through hole 16. The air outlet of the circulating fan 12 is connected to the upper through hole 15 via an air outlet pipe 18, and the air inlet of the circulating fan 12 is connected to the duct 17 via an air inlet pipe 19. The circulating fan 12 is fixed to the partition plate 103 and the right side plate 104 by a bracket 20. The circulating fan 12 blows air above the channel 403a of the heat exchanger 4 through the air outlet pipe 18, and the air returns to the air inlet pipe 19 from the outlet below the channel 403a.

[0023] The oven body 1 of this utility model is provided with a feed inlet and a discharge outlet at the front and rear ends, respectively. When the oven is working, the fiber enters the oven through the feed inlet, and then the conveyor chain plate 5 carries the fiber product 6 through eight heating zones 2 and two cooling zones 3 in sequence. The eight heating zones 2 and two cooling zones 3 are equidistantly distributed in the oven. Hot steam is introduced into the left end cap 401 of the heat exchanger 4 in the heating zone 2, and cooling water is introduced into the left end cap 401 of the heat exchanger 4 in the cooling zone 3. The cooling water is chilled water. The hot steam or cooling water is discharged and recovered from the recovery medium pipe 11 through the second channel 403b. The circulating fan 12 blows air above the first channel 403a of the heat exchanger 4. The fiber in the first eight heating zones 2 is dried and heated. The first conveyor pipe 7 of the heat exchanger 4 in the heating zone 2 is provided with a flow regulating valve. The fiber in the last two cooling zones 3 is cooled, so that the fiber is cooled before leaving the oven. The oven of this invention is divided into zones. The heat exchanger 4 and the cooling zone 3 are circulated with chilled water to quickly cool the fibers to room temperature or below, reducing the heating zone 2 and preventing the fibers from being over-dried. The advantages of this invention are: it can solve the problem of fibers being over-dried in the oven, resulting in abnormal fiber appearance and feel, and allows the fibers to be cooled before leaving the oven, preventing the fibers from clumping in the packaging bag.

[0024] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. An oven for effectively preventing fiber caking inside the packaging, comprising an oven body, characterized in that, The oven contains eight heating zones and two cooling zones arranged sequentially along its length. Each heating zone and cooling zone is equipped with a heat exchanger. Below each heat exchanger, a conveyor chain for transporting fiber products is located inside the oven. The heat exchangers are plate-fin heat exchangers. The left end of each heat exchanger is connected to the main hot steam pipeline via a conveyor pipe. The conveyor pipes of the heat exchangers in the two cooling zones are equipped with blind flanges, and the sides of the conveyor pipes of the heat exchangers in the two cooling zones are connected to the main cooling water pipeline via a second conveyor pipe. The height of the blind flanges is higher than the connection point between the second and first conveyor pipes. The right end of each heat exchanger is connected to a recovery medium pipe. The gas outlet of each heat exchanger is oriented downwards, corresponding to the conveyor chain. A circulating fan is provided corresponding to the gas inlet of each heat exchanger.

2. The drying oven according to claim 1 for effectively preventing fiber packing, characterized in that, The oven body includes a horizontal top plate, and a left side plate, a partition plate and a right side plate are vertically arranged below the top plate. The heating zone and the cooling zone are both located between the left side plate and the partition plate. A reinforcing plate is horizontally arranged between the lower part of the left side plate and the partition plate.

3. The drying oven for effectively preventing fiber packing as described in claim 2, characterized in that, The first conveying pipe, the second conveying pipe, and the recovery medium pipe are all installed extending out of the top plate.

4. An oven for effectively preventing fiber packing from caking according to any one of claims 1-3, characterized in that, The heat exchanger includes a plate bundle, with a left end cap and a right end cap on the left and right sides of the plate bundle, respectively. Several vertical channels one and horizontal channels two are provided on the plate bundle. Channel two is arranged along the width direction of the oven. The left and right ends of channel two are connected to the left end cap and the right end cap, respectively. The upper and lower ends of channel one are the gas inlet and the gas outlet, respectively.

5. An oven for effectively preventing fiber packing from caking according to any one of claims 1-3, characterized in that, The conveying pipe includes an upper pipe body and a lower pipe body. The lower end of the upper pipe body and the upper end of the lower pipe body are respectively provided with flange 1 and flange 2. A sealing blind plate is provided between flange 1 and flange 2. Flange 1 and flange 2 are fixed together by several fasteners evenly distributed along the circumference. A sealing ring is provided on the upper and lower sides of the sealing blind plate corresponding to flange 1 and flange 2 respectively.

6. An oven for effectively preventing fiber packing as described in claim 2 or 3, characterized in that, Several observation windows are provided on the left side panel.

7. An oven for effectively preventing fiber packing from caking according to claim 2 or 3, characterized in that, Each of the circulating fans is located between the partition plate and the right side plate. Each circulating fan has an upper through hole and a lower through hole. A duct is connected to the lower through hole. The air outlet of the circulating fan is connected to the upper through hole through the air outlet pipe. The air inlet of the circulating fan is connected to the duct through the air inlet pipe. The circulating fan is fixed to the partition plate and the right side plate by a bracket.

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