CN115573052A - Polyester staple fiber partition type direct injection heating setting machine - Google Patents
Polyester staple fiber partition type direct injection heating setting machine Download PDFInfo
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- CN115573052A CN115573052A CN202211341759.7A CN202211341759A CN115573052A CN 115573052 A CN115573052 A CN 115573052A CN 202211341759 A CN202211341759 A CN 202211341759A CN 115573052 A CN115573052 A CN 115573052A
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/02—Heat treatment
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Abstract
The invention relates to the technical field of polyester spinning, in particular to a polyester staple fiber partitioned direct injection heating setting machine. A polyester staple fiber partition type direct injection heating setting machine comprises a box body, chain plates, a conveying chain, a circulating fan and an air duct, wherein the box body comprises a front two areas and a rear four areas, and hot air in the front two areas is circulated in the direction of hot air from bottom to top; the circulation direction of hot wind in the rear four areas is that hot wind blows from top to bottom; the conveying chain is longitudinally arranged in the box body, the chain plate is fixedly arranged on the conveying chain, the box body is provided with a plurality of corresponding air supply outlets and air return inlets, the air duct is connected with the air supply outlets and the air return inlets, and the circulating fan is arranged on the air duct; the front two-zone air supply outlets are arranged at the upper part of the box body, the rear four-zone air supply outlets are arranged at the lower part of the box body, and a fuel gas direct injection heating system is arranged on one side of the air supply outlets in the box body. The invention improves the heat utilization rate of the oven and saves the consumption of natural gas.
Description
Technical Field
The invention relates to the technical field of polyester spinning, in particular to a polyester staple fiber partitioned direct injection heating setting machine.
Background
In the chemical fiber industry, particularly in the post-spinning process of the short fiber industry, the fiber after post-spinning drafting and curling needs to be subjected to heat setting in an oven, so that the internal stress of the fiber is eliminated, the dimensional stability of the fiber is improved, and the physical and mechanical properties of the fiber are further improved.
As shown in fig. 1 and 2, the heating oven of a raw heat-conducting oil heat exchanger currently used by the applicant comprises a box body 20, a chain plate 5, a conveying chain 6, a circulating fan 16 and an air duct 18, wherein the conveying chain 6 is longitudinally arranged inside the box body 20, the chain plate 5 is fixedly arranged on the conveying chain 6, the box body 20 is provided with an air supply opening 21 and an air return opening 19, the air duct 18 is connected with the air supply opening 21 and the air return opening 19, and the circulating fan 16 is arranged on the air duct 18; a flow guide plate 2 is arranged at the downstream of the air return opening 19 of the box body 20, a porous air homogenizing plate 3 is arranged at the downstream of the flow guide plate 2, hot air is guided to the porous air homogenizing plate 3 by the arrangement direction of the flow guide plate 2, and a heat conducting oil heat exchanger 19 is arranged at the downstream of the porous air homogenizing plate 3; the heat conducting oil heat exchanger 19 is positioned at the upstream of the chain plate 5 of the box body 20; a filter screen 7 is arranged in the cavity of the box body 20, the air supply outlet 21 is arranged at the downstream of the filter screen 7, one side of the air supply outlet 21 is connected with the cavity of the box body 20, and the other side of the air supply outlet 21 is connected with the circulating fan 16. The heating device of this oven is conduction oil heat exchanger 19, and the principle is that the circulated air makes wind direction porous even aerofoil 3 back through guide plate 2, heats through conduction oil heat exchanger 19, that is to say, the circulated air is the fibre of blowing to link joint 5 after the homogeneous mixing of process earlier, rethread heating device absorbed heat becomes hot-blast. As shown in fig. 5, the heating oven system of the original heat transfer oil heat exchanger is divided into a front two areas and a rear four areas, wherein each span four areas are provided with two circulating fans and four heat transfer oil heat exchangers in each area; the first two regions are marked as regions A1 and A2, and the last four regions are marked as regions B1, B2, B3 and B4; the drying oven structures adopted in the areas A1 and A2 are shown in figure 2, and the hot air circulation direction is that hot air is blown from bottom to top to heat and dehumidify the fibers at the lower half part of the chain plate; the oven structures adopted in the areas B1, B2, B3 and B4 are shown in figure 1, and the hot air circulation direction is that hot air is blown from top to bottom to heat and dehumidify the upper half part of fibers of the chain plate.
Because the heating device adopted in the prior art is a heat-conducting oil heat exchanger, the circulating air is heated by utilizing the secondary heat transfer of heat-conducting oil, the heat-conducting oil is heated by a natural gas boiler, when the natural gas boiler operates, the heat emitted by natural gas flame heats the heat-conducting oil heat exchanger, the heated air with waste heat is finally exhausted, and the part cannot be reused or is lost. Because the natural gas boiler has only 90% of heat efficiency, the total loss rate reaches 15+%, the pipeline heat loss of the heated heat conduction oil in the flowing process is about 5% of heat loss, and the heat transfer efficiency of the two heat exchangers.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a zoned direct injection heat setting machine for polyester staple fibers. In the invention, the setting machine adopts a gas direct injection mode for heating, the flame heat of natural gas is directly mixed with circulating air, secondary heat transfer and waste heat loss are avoided, and the heat utilization rate is greatly improved. In addition, the invention uniformly mixes the generated hot air by heating the cold air firstly and then homogenizing the cold air, thereby further ensuring the heat absorption equivalent of the fiber and the consistency of the product quality.
In order to achieve the above object, the present invention adopts the following technical solutions:
a polyester staple fiber partition type direct injection heating setting machine comprises a box body, chain plates, a conveying chain, a circulating fan and an air duct, wherein the box body comprises a front two areas and a rear four areas, and hot air in the front two areas is circulated in the direction of hot air from bottom to top; the circulation direction of hot wind in the rear four areas is that hot wind blows from top to bottom; the conveying chain is longitudinally arranged in the box body, the chain plate is fixedly arranged on the conveying chain, the box body is provided with a plurality of corresponding air supply outlets and air return inlets, the air duct is connected with the air supply outlets and the air return inlets, and the circulating fan is arranged on the air duct; the setting of two first district supply-air outlets is in the upper portion of box, and the supply-air outlet setting in back four districts is in the lower part of box, one side of the inside supply-air outlet of box be provided with the gas and directly spout heating system, the gas is directly spouted heating system and is included heating duct, gas and directly spout combustor, even wind dog and even wind static mixer, heating duct transversely establishes in the box, heating duct's one end is connected with the supply-air outlet, heating duct's the other end setting the gas directly spout the combustor to there is the fresh air inlet to be used for communicating the box inner chamber in the position at heating duct gas directly spout combustor place, even wind dog sets up the low reaches of gas directly spouting the combustor in heating duct, and even wind static mixer sets up the low reaches of even wind dog in heating duct.
Preferably, a guide plate is arranged at the downstream of the return air inlet of the box body, a porous air homogenizing plate is arranged at the downstream of the guide plate, and the arrangement direction of the guide plate leads hot air to the porous air homogenizing plate; a filter screen is arranged at the downstream of the inner chain plate of the box body.
Preferably, an inner cylinder and an outer cylinder are arranged on the outer side of the gas direct-injection burner, the inner cylinder is arranged on the outer side of the gas direct-injection burner, the outer cylinder is arranged on the outer side of the inner cylinder, and air inlet holes are uniformly formed in the side walls of the inner cylinder and the outer cylinder.
Preferably, the oven further comprises an explosion door and a water spray pipe, the explosion door being disposed outside the positive pressure region; the positive pressure area is an area from the outlet of the circulating fan to the chain plate; the water spray pipe is arranged above the chain plate.
Preferably, the oven further comprises a temperature sensor, and the temperature sensor is arranged at the outlet of the circulating fan.
Preferably, the oven further comprises a fire catcher, and the fire catcher is arranged at the joint of the tail end of the heating pipeline and the air supply outlet.
Preferably, the wind-equalizing block is triangular, is perpendicular to the wind flow direction, and is arranged in a crossed manner.
Preferably, the area from the chain plate to the suction opening of the circulating fan is a micro negative pressure area.
Preferably, each of the front two zones and the rear four zones is provided with two air supply outlets, and the two air supply outlets are connected with a gas direct injection heating system through a three-way joint.
The beneficial technical effects of the invention are as follows: according to the invention, the flame heat of natural gas and circulating air are directly and fully mixed in a direct heating mode of the natural gas burner, the heat can be utilized by 100%, the total loss rate of the natural gas is greatly reduced, and meanwhile, the heated circulating air is further mixed by the air homogenizing device, so that the wind direction and the air quantity of the circulating air are basically kept consistent, the heat distribution of the circulating air is balanced, and the heat absorption equivalent of fibers and the consistency of the product quality are ensured. Compared with the traditional heat-conducting oil heat exchanger oven, the oven provided by the invention can greatly save the consumption of natural gas when the same fiber quantity is heated.
Drawings
FIG. 1 is a schematic diagram of a four-zone oven after raw heat transfer oil is heated;
FIG. 2 is a schematic diagram of two zones of ovens before heating with raw heat transfer oil;
FIG. 3 is a schematic diagram of a rear four-zone oven of the present invention;
FIG. 4 is a schematic view of a first two-zone oven of the present invention;
fig. 5 is a schematic diagram of a conventional setting machine;
fig. 6 is a schematic structural diagram of a polyester staple fiber zoned type direct injection heating setting machine.
Detailed Description
The technical solutions in the embodiments of the present invention will be reviewed and completely described below with reference to the embodiments of the present invention, so as to further explain the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. Given the embodiments of the present invention, all other embodiments that can be obtained by a person of ordinary skill in the art without any inventive step are within the scope of the present invention.
As shown in fig. 6, the polyester staple fiber partitioned direct injection heating setting machine of the present invention is divided into two front zones (A1 and A2 zones) and four rear zones (B1, B2, B3 and B4 zones), each four spans are one zone, each zone has one burner and two circulating fans, and after the burners are uniformized, the zones are divided into two zones and then divided into two circulating fans. Wherein, the structure of the oven in the last four areas is shown in fig. 3, the hot air circulation direction is that hot air is blown from top to bottom to heat and dehumidify the upper half part of the fiber of the chain plate; the structure of the drying oven in the first two areas is shown in fig. 4, the hot air circulation direction is that hot air blows from bottom to top to heat and dehumidify the fibers at the lower half part of the chain plate. The two structural principles are the same, only the positions of the gas direct injection heating systems are different, the front two zones (zones A1 and A2) and the rear four zones (zones B1, B2, B3 and B4) both adopt the oven of the invention, the front two zone gas direct injection heating systems are arranged at the upper part of the box body 20, and the rear four zone gas direct injection heating systems are arranged at the lower part of the box body 20.
As shown in fig. 3 and 4, the setting machine of the present invention includes a box 20, a chain plate 5, a conveying chain 6, a circulating fan 16 and an air duct 18, wherein the conveying chain 6 is longitudinally disposed in the box 20, the chain plate 5 is fixedly disposed on the conveying chain 6, the box 20 is provided with an air supply opening 21 and an air return opening 19, the air duct 18 is connected with the air supply opening 21 and the air return opening 19, and the circulating fan 16 is disposed on the air duct 18; its characterized in that, box 20 inside be provided with the gas in supply-air outlet 21 one side and directly spout heating system, the gas directly spouts heating system and includes heating duct 14, gas directly spouts combustor 11, even wind dog 12 and even wind static mixer 13, heating duct 14 transversely establishes in box 20, heating duct 14's one end is connected with supply-air outlet 21, heating duct 14's the other end sets up the gas directly spout combustor 11 to there is intake opening 8 to be used for communicateing the 20 inner chambers of box in the position that heating duct 14 gas directly spouts combustor 11 place, even wind dog 12 sets up the low reaches that directly spouts combustor 11 in heating duct 14, even wind static mixer 13 sets up the low reaches of even wind dog 12 in heating duct 14.
Wherein, the box body 20 is provided with a guide plate 2 at the downstream of the air return opening 19, the downstream of the guide plate 2 is provided with a porous air homogenizing plate 3, and the arrangement direction of the guide plate 2 leads hot air to the porous air homogenizing plate 3; a filter screen 7 is arranged at the downstream of the inner chain plate 5 of the box body 20. An inner cylinder 10 and an outer cylinder 9 are arranged on the outer side of the gas direct-injection burner 11, the inner cylinder 10 is arranged on the outer side of the gas direct-injection burner 11, the outer cylinder 9 is arranged on the outer side of the inner cylinder 10, and air inlet holes 8 are uniformly formed in the side walls of the inner cylinder 10 and the outer cylinder 9.
The oven also comprises an explosion door 1, a water spray pipe 4, a fire catcher 15 and a temperature sensor 17; the explosion door 1 is arranged outside the positive pressure area and used for preventing accidents caused by overlarge pressure; the water spray pipe 4 is arranged above the chain plate 5 and used for preventing the fiber from being ignited and emergently extinguishing the fire; the fire catcher 15 is arranged at the joint of the tail end of the heating pipeline 14 and the air supply outlet 21 and is used for filtering residues; the temperature sensor 17 is arranged at the outlet of the circulating fan 16, and the natural gas inflow of the combustion fan is controlled by feeding back the temperature to the controller; the positive pressure area is an area from an outlet of the circulating fan 16 to the chain plate 5, and an area from the chain plate 5 to a suction opening of the circulating fan 16 is a micro negative pressure area. The wind-equalizing block 12 in the wind-equalizing device is triangular, is vertical to the wind flow direction, and is arranged in a crossed manner. The link plates 5 are perforated plates and are conveyed in one direction by a conveyor chain 6.
The data of the table 1 show that the setting machine of the invention is used for heating by direct gas injection, secondary heat transfer of heat transfer oil is avoided, the flame heat of natural gas is directly mixed with circulating air, and the heat is utilized by 100%. The heating average of the original heating requirement of each ton of fiber oven is 54m 3 Now, only 46m is needed on average after modification 3 Compared with the original natural gas, the natural gas is saved by 20 percent.
TABLE 1
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention, including any reference to the above-mentioned embodiments. Various modifications to these embodiments will be readily apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A polyester staple fiber partition type direct injection heating setting machine comprises a box body (20), chain plates (5), a conveying chain (6), a circulating fan (16) and a wind channel (18), wherein the box body (20) comprises a front two areas (A1 and A2) and a rear four areas (B1, B2, B3 and B4), and the hot wind circulation direction in the front two areas is that hot wind blows from bottom to top; the circulation direction of hot air in the back four areas is that the hot air blows from top to bottom; the conveying chain (6) is longitudinally arranged in the box body (20), the chain plate (5) is fixedly arranged on the conveying chain (6), the box body (20) is provided with a plurality of corresponding air supply openings (21) and air return openings (19), the air duct (18) is connected with the air supply openings (21) and the air return openings (19), and the circulating fan (16) is arranged on the air duct (18); its characterized in that, the setting of two first district supply-air outlets (21) is on the upper portion of box (20), and supply-air outlets (21) of back four districts set up in the lower part of box (20), box (20) inside supply-air outlets (21) one side be provided with the gas and directly spout heating system, the gas directly spouts heating system including heating duct (14), gas directly spout combustor (11), even wind dog (12) and even wind static mixer (13), heating duct (14) transversely are established in box (20), the one end of heating duct (14) is connected with supply-air outlets (21), the other end of heating duct (14) sets up gas directly spout combustor (11) to there is fresh air inlet (8) to be used for communicateing box (20) inner chamber at the position that heating duct (14) gas directly spouts combustor (11) place, even wind dog (12) set up the low reaches of gas directly spouting combustor (11) in heating duct (14), even wind static mixer (13) sets up the low reaches of even wind dog (12) in heating duct (14).
2. The zoned direct-injection polyester staple fiber heating and setting machine according to claim 1, wherein the box (20) is provided with a guide plate (2) at a downstream of the air return opening (19), a porous air homogenizing plate (3) is arranged at a downstream of the guide plate (2), and the guide plate (2) is arranged in a direction that hot air is guided to the porous air homogenizing plate (3).
3. The zoned type direct injection heat setting machine for polyester staple fibers according to claim 1, wherein a filter screen (7) is disposed downstream of the inner chain plate (5) of the box body (20).
4. The polyester staple fiber zoned direct-injection heating setting machine according to claim 1, wherein an inner cylinder (10) and an outer cylinder (9) are disposed outside the gas direct-injection burner (11), the inner cylinder (10) is disposed outside the gas direct-injection burner (11), the outer cylinder (9) is disposed outside the inner cylinder (10), and air inlet holes (8) are uniformly formed in side walls of the inner cylinder (10) and the outer cylinder (9).
5. The zoned direct-injection polyester staple fiber heating and setting machine according to claim 1, wherein the oven further comprises an explosion door (1) and a water spray pipe (4), wherein the explosion door (1) is arranged outside the positive pressure zone; wherein the positive pressure area is the area from the outlet of the circulating fan (16) to the chain plate (5); the water spray pipes (4) are arranged above the chain plates (5).
6. The zoned direct injection heating setting machine for polyester staple fibers according to claim 1, wherein the oven further comprises a temperature sensor (17), and the temperature sensor (17) is disposed at an outlet of the circulating fan (16).
7. The zoned type direct injection heating setting machine for polyester staple fibers according to claim 1, wherein the oven further comprises a fire catcher (15), and the fire catcher (15) is arranged at the joint of the tail end of the heating pipeline (14) and the air supply outlet (21).
8. The polyester staple fiber zone type direct injection heating setting machine as claimed in claim 1, wherein said even wind block (12) is triangular, perpendicular to the wind direction, and arranged in a cross arrangement.
9. The polyester staple fiber zone type direct injection heating setting machine according to claim 1, wherein the area from the chain plate (5) to the suction port of the circulating fan (16) is a micro negative pressure zone.
10. The polyester staple fiber zone-type direct injection heating setting machine according to claim 1, wherein each of the front two zones (A1, A2) and the rear four zones (B1, B2, B3, B4) is provided with two air supply ports (21), and the two air supply ports (21) are connected with a gas direct injection heating system through a three-way joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211341759.7A CN115573052A (en) | 2022-10-26 | 2022-10-26 | Polyester staple fiber partition type direct injection heating setting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211341759.7A CN115573052A (en) | 2022-10-26 | 2022-10-26 | Polyester staple fiber partition type direct injection heating setting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115573052A true CN115573052A (en) | 2023-01-06 |
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ID=84587774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211341759.7A Pending CN115573052A (en) | 2022-10-26 | 2022-10-26 | Polyester staple fiber partition type direct injection heating setting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115573052A (en) |
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2022
- 2022-10-26 CN CN202211341759.7A patent/CN115573052A/en active Pending
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