Environment-friendly partition sealed continuous spinning machine

Abstract

The utility model discloses an environment-friendly subarea sealed continuous spinning machine which comprises a reaction area and a drying area, the reaction area comprises a reaction cabin, a forming pipe and at least two spinning rollers, the drying area comprises at least two drying rollers, the number of the spinning rollers is the same as that of the drying rollers, the drying rollers and the spinning rollers are coaxially arranged, and the forming pipe is arranged in the reaction cabin. A continuous spinning channel is formed among the reaction cabin, the forming pipe, the spinning roller and the drying roller, the drying roller and the spinning roller are connected through a rotary sealing assembly, a sealing cover is arranged on the outer side of the reaction area and the outer side of the drying area, and a sealing baffle is arranged at the position, between the reaction area and the drying area, of the sealing cover. The sealing baffle is in sealing connection with the rotary sealing assembly; the reaction area side sealing cover and the drying area sealing cover are respectively provided with a waste gas pipeline; the sealing baffle is provided with through holes used for continuous conveying of filaments. Waste gas in the reaction area and the drying area is precisely separated, the environmental protection requirement is met, and the burden of an enterprise is relieved.

Description

Technical Field

[0001] The utility model relates to an environment-friendly, zone-sealed continuous spinning machine suitable for viscose filaments, which is a technology for improving the comprehensive efficiency of continuous spinning and belongs to the technical field of continuous spinning equipment. Background Art

[0002] In the existing viscose filament technology, spinning machines can be divided into short-fiber spinning machines and filament spinning machines according to the types of spinning. Filament spinning machines include ordinary filament spinning machines and strong filament spinning machines. If filament spinning machines are divided according to the type of yarn receiving mechanism, there are bobbin spinning machines and centrifugal spinning machines. The difference from the short-fiber spinning machine is that a winding mechanism for the filaments after coagulation is added. The filaments coming out of the coagulation bath are washed with water and passed through a guide wire disk, and then enter the high-speed rotating centrifugal tank through a guide wire funnel that reciprocates up and down. Such a spinning machine is called a centrifugal spinning machine. If the filaments are wound on a bobbin after passing through a guide wire disk, it is called a bobbin spinning machine. If post-processing and winding steps are provided before winding, it is called a continuous spinning machine.

[0003] The continuous spinning machine is a closed space spliced ​​with a shell, in which there are more than two spinning rollers. The closed space integrates the continuous spinning reaction area (forming area, leaching area and slurry area) and the drying area. Driven by large and small processing rollers, the tow passes through the above two areas in turn, thus completing the four processes of coagulation, leaching, sizing and drying.

[0004] The waste gas generated in the reaction zone is mainly hydrogen sulfide and carbon disulfide. The exhaust volume of the waste gas in the reaction zone is small and the concentration of toxic and harmful substances in the waste gas is high. Since the drying zone produces more water vapor, a large amount of exhaust air is required to quickly discharge the water vapor. The reaction of the silk strips in the drying zone is basically completed, during which a small amount of hydrogen sulfide and carbon disulfide are produced. Therefore, the drying zone has the characteristics of large air volume, and the concentration of toxic and harmful substances is extremely low, which meets the emission standards and can be directly discharged. Traditional spinning machines usually use large-volume fans to exhaust the closed space of the spinning machine, so that the waste gas generated in the reaction zone and the drying zone is mixed and discharged, so that the waste gas concentration of toxic and harmful gases such as hydrogen sulfide and carbon disulfide is low, the subsequent treatment cost is extremely high, which is not conducive to industrial treatment and has a large pollution to the environment.

[0005] Chinese utility model patent CN204125577U discloses a continuous spinning machine, which specifically discloses a base, a frame is arranged above the base, a spinning device, a stretching device, a refining roller group, a deacidification water washing device, an oiling and drying device and a receiving tube are installed in the frame, and the spinning device, the stretching device and the oiling and drying device are located below the refining roller group; the stretching device includes a group of stretching rollers distributed up and down, and the bottom stretching roller is immersed in the plasticizing bath solution; the deacidification water washing device includes a deacidification water pipe located above the refining roller group and an acid receiving tank located below the refining roller group; the top of the frame is provided with a waste gas recovery tank for extracting and collecting waste gas in the frame. Harmful gases in the plasticizing bath solution and the acid receiving tank volatilize, and a vacuum pump is provided at the top of the frame to extract the harmful gases to the waste gas recovery tank.

[0006] However, in this patent, the high-concentration exhaust gas in the reaction zone and the low-concentration exhaust gas in the drying zone cannot be separated, and are directly mixed when the exhaust gases are collected. The subsequent processing costs are extremely high, causing a huge economic burden on the company.

[0007] Therefore, there is an urgent need to provide an environmentally friendly partitioned sealed continuous spinning machine that can achieve accurate separation of high-concentration and low-concentration exhaust gases to solve the above-mentioned problems. Summary of the invention

[0008] In order to overcome the shortcomings of the prior art, the utility model proposes an environmentally friendly zoned sealed continuous spinning machine. In the utility model, the reaction zone and the drying zone are zoned and sealed, the waste gas from the reaction zone and the drying zone is accurately separated, the high-concentration waste gas with low air volume formed in the reaction zone is collected and transported for subsequent treatment, and the low-concentration waste gas with high air volume formed in the drying zone is directly discharged, thereby meeting environmental protection requirements and reducing the burden on enterprises.

[0009] In order to achieve the above technical objectives, the following technical solutions are proposed:

[0010] An environmentally friendly partition-sealed continuous spinning machine comprises a reaction zone and a drying zone, wherein the reaction zone comprises a reaction chamber, a forming tube and at least two spinning rollers, and the drying zone comprises at least two drying rollers, wherein the number of the spinning rollers and the drying rollers is the same, and one spinning roller and one drying roller form a group, and each group of drying rollers has the same diameter as the spinning roller and is coaxially connected through a rotating sealing assembly, wherein a continuous spinning passage is formed between the reaction chamber, the forming tube, the spinning roller and the drying roller, and a sealing cover is arranged on the outside of the reaction zone and the drying zone, wherein a sealing baffle is arranged at a middle position of the reaction zone and the drying zone to partition and seal the reaction zone and the drying zone, and the sealing baffle is sealingly connected to the rotating sealing assembly; the reaction zone side sealing cover and the drying zone side sealing cover are respectively provided with exhaust gas pipelines; and the sealing baffle is provided with perforations for continuous conveying of silk strips.

[0011] The rotary sealing assembly includes a connecting shaft and a rotary sealing device. The connecting shaft passes through a sealing baffle. One end of the connecting shaft is connected to the end of a spinning roller, and the other end of the connecting shaft is connected to the end of a drying roller. The rotary sealing device is sleeved on the connecting shaft, and the rotary sealing device is sealed and connected to the sealing baffle.

[0012] The rotary sealing device comprises a bearing and a sealing ring, wherein the bearing is sleeved on the connecting shaft, the sealing ring is sleeved on the outer side of the bearing, and the sealing ring is sealingly connected to the sealing baffle.

[0013] The bearing is a sealed bearing, and a sealed bearing is sleeved on each of the two ends of the connecting shaft, and the sealing ring is sleeved on the outside of the sealed bearing.

[0014] A groove is arranged in the middle of the sealing ring, and the sealing baffle is embedded in the groove to realize a sealing connection with the sealing ring.

[0015] The spinning rollers are 2 rollers I, and the drying rollers are 2 rollers II. The rollers I and II have the same diameter and are connected one-to-one through a rotating seal assembly. The spinning rollers are 1 roller III and 4 rollers IV, and the drying rollers are 1 roller V and 4 rollers VI. The rollers III and V have the same diameter and are connected through a rotating seal assembly; the rollers IV and VI have the same diameter and are connected one-to-one through a rotating seal assembly, and the diameters of the rollers III and V are larger than those of the rollers IV and VI. The operating surfaces of the reaction zone side sealing cover and the drying zone side sealing cover are respectively provided with movable protective windows.

[0016] The movable protective window can be turned over or pushed and pulled under the premise of ensuring airtightness, and is made of plastic corrosion-resistant material.

[0017] The exhaust gas pipelines on the reaction zone side and the drying zone side are respectively provided with fans;

[0018] The fan is a centrifugal fan or a Roots blower, and its air volume corresponds to one or more spinning machines, ensuring that the sealing covers on the reaction zone side and the drying zone side of the continuous spinning machine are both under negative pressure.

[0019] The perforations are round holes or strip holes with smooth surfaces.

[0020] The beneficial technical effects brought about by adopting this technical solution are:

[0021] In the utility model, a sealing cover is provided on the outer side of the reaction zone and the drying zone, and a sealing baffle is provided in the middle position of the reaction zone and the drying zone to separate the reaction zone and the drying zone of the spinning machine. Exhaust gas pipelines are respectively provided in the sealing covers on the reaction zone side and the drying zone side to accurately separate the exhaust gas generated in the reaction zone and the drying zone, and the exhaust gas in the reaction zone is collected and transported for subsequent treatment, and the exhaust gas in the drying zone is directly discharged, thereby improving the exhaust gas treatment efficiency, meeting environmental protection requirements, and reducing the burden on enterprises.

[0022] In the utility model, the harmful substance content of the exhaust gas generated in the drying zone is carbon disulfide <8mg / m³ and hydrogen sulfide <0.5mg / m³, the harmful substance content is relatively low, meets the requirements of the current spinning industry emission standards, and can be directly discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the environmentally friendly partitioned sealed continuous spinning machine in Example 1 of the utility model.

[0024] Figure 2 This is a schematic diagram of the structure of an environmentally friendly partitioned sealed continuous spinning machine in Example 2 of the utility model.

[0025] Figure 3 This is a schematic diagram of the structure of the rotary seal assembly of the utility model.

[0026] Among them, 1. reaction zone; 2. drying zone; 3. reaction chamber; 4. forming tube; 5. spinning roller; 6. drying roller; 7. sealing cover; 8. sealing baffle; 8.1. perforation; 9. rotating sealing assembly; 9.1. connecting shaft; 9.2. bearing; 9.3 sealing ring; 10. exhaust gas pipe. DETAILED DESCRIPTION

[0027] The following is a clear and complete description of the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The positional relationships involved in this technical solution, such as "inside", "offset", "below", "between", "directly below", "obliquely below", "horizontal plane", and "above", are defined according to the situations under actual usage conditions. They are conventional terms in this technical field and are also conventional terms used by technical personnel in this field in actual use.

[0029] Example 1

[0030] like Figure 1-3As shown, an environmentally friendly partition-sealed continuous spinning machine comprises a reaction zone 1 and a drying zone 2, wherein the reaction zone 1 comprises a reaction chamber 3, a forming tube 4 and two rollers I, and the drying zone 2 comprises two rollers II, the number of the spinning rollers 5 and the drying rollers 6 are the same, one spinning roller 5 and one drying roller 6 form a group, each group of drying rollers 6 has the same diameter as the spinning roller 5 and is coaxially connected through a rotating sealing assembly 9, a continuous spinning passage is formed between the reaction chamber 3, the forming tube 4, the spinning roller 5 and the drying roller 6, a sealing cover 7 is arranged on the outside of the reaction zone 1 and the drying zone 2, a sealing baffle 8 is arranged at the middle position of the reaction zone 1 and the drying zone 2, and the sealing baffle 8 is sealed and connected to the rotating sealing assembly 9; the sealing cover 7 on the reaction zone 1 side and the sealing cover 7 on the drying zone 2 are respectively provided with exhaust gas pipelines; the sealing baffle 8 is provided with a perforation 8.1 for continuous conveying of silk strips, and the perforation 8.1 is a strip hole with a smooth surface;

[0031] The rotary sealing assembly 9 comprises a connecting shaft 9.1 and a rotary sealing device. The connecting shaft 9.1 passes through the sealing baffle 8 and is respectively connected to the ends of the spinning roller 5 and the drying roller 6 at both ends. The rotary sealing device is sleeved on the connecting shaft 9.1 and is sealed and connected to the sealing baffle 8. The rotary sealing device comprises a bearing 9.2 and a sealing ring. The bearing 9.2 is sleeved on the connecting shaft 9.1, the sealing ring is sleeved on the outside of the bearing 9.2, and the sealing ring is sealed and connected to the sealing baffle 8. The bearing 9.2 is a sealed bearing 9.2. A sealed bearing 9.2 is sleeved on both ends of the connecting shaft 9.1, and the sealing ring is sleeved on the outside of the sealed bearing 9.2. A groove is arranged in the middle of the sealing ring, and the sealing baffle 8 is embedded in the groove to achieve a sealed connection with the sealing ring.

[0032] In this embodiment, the waste gas generated in the reaction zone 1 is a high-concentration waste gas mainly composed of carbon disulfide and hydrogen sulfide, wherein the waste gas volume of the reaction zone 1 is 1200 m³ / h. unit, the carbon disulfide concentration is greater than 1500mg / m³, and the hydrogen sulfide concentration is greater than 200mg / m3. The waste gas is collected in the sealing cover 7 on the side of the reaction zone 1 and discharged through the waste gas pipeline 9.3 sealing ring; 10; the waste gas volume of the drying zone 2 is 3600 m³ / h. unit, the waste gas concentration of carbon disulfide is less than 8mg / m³, and the hydrogen sulfide is less than 0.5mg / m³, and the concentration of key substances is low, which meets the requirements of the current spinning industry emission standards and can be directly discharged. The total exhaust volume of this model in the original design is 12000m³ / h. unit, the carbon disulfide concentration is about 152mg / m³, and the hydrogen sulfide concentration is about 20mg / m³, and the waste gas treatment economy is low. After accurately separating the exhaust gas from reaction zone 1 and drying zone 2, the amount of exhaust gas requiring subsequent treatment is reduced by 60% compared to the original design, greatly reducing the burden on the enterprise.

[0033] In this embodiment, the waste gas generated in the reaction zone 1 is a high-concentration waste gas mainly composed of carbon disulfide and hydrogen sulfide, wherein the high-concentration waste gas volume of the reaction zone 1 is 1200 m³ / h. unit, the carbon disulfide concentration is greater than 1500mg / m³, and the hydrogen sulfide concentration is greater than 200mg / m³. The waste gas is collected in the sealing cover 7 on the side of the reaction zone 1 and then discharged through the waste gas pipeline 9.3 sealing ring; 10; the low-concentration waste gas volume of the drying zone 2 is 2800 m³ / h. unit, the waste gas concentration of carbon disulfide is less than 8mg / m³, and the hydrogen sulfide is less than 0.5mg / m³, and the concentration of key substances is low, which meets the requirements of the current spinning industry emission standards and can be directly discharged. The total exhaust volume of this model in the original design is 12000m³ / h. unit, the carbon disulfide concentration is about 152mg / m³, and the hydrogen sulfide concentration is about 20mg / m³, and the waste gas treatment economy is low. After accurately separating the exhaust gas from reaction zone 1 and drying zone 2, the amount of exhaust gas requiring subsequent treatment is reduced by 90% compared to the original design, greatly reducing the burden on the enterprise.

[0034] The original design of this model has a total exhaust volume of 12,000 m³ / h. Five spinning machines share one exhaust fan (rated air volume 63,000 m³ / h, rated power: 45Kw), and the exhaust fan efficiency is 95%. After the zoning design, the total exhaust volume of a single spinning machine is 4,000 m³ / h, which meets the requirement of 15 spinning machines sharing one exhaust fan (rated air volume 63,000 m³ / h, rated power: 45Kw). The exhaust power of a single spinning machine is reduced by: 45*93%*(3-1) / 15*95%=5.301Kw, and the annual electricity cost saving is estimated to be: 5.301Kw*24h / day*360 days / year*0.5 yuan / Kw.h=22,900.32 yuan / year.

[0035] Example 2

[0036] Compared with Example 1, the present embodiment is different in that, in the present embodiment, the spinning rollers 5 are 1 roller III and 4 rollers IV; the drying rollers 6 are 1 roller V and 4 rollers VI, the roller III and roller V have the same diameter and are connected by a rotating sealing assembly 9; the roller IV and roller VI have the same diameter and are connected one-to-one by a rotating sealing assembly 9, and the diameters of the rollers III and roller V are larger than those of the rollers IV and roller VI; the operating surfaces of the sealing cover 7 on the reaction zone 1 side and the sealing cover 7 on the drying zone 2 side are respectively provided with movable protective windows, which can be flipped or pushed and pulled while ensuring airtightness, and are made of plastic corrosion-resistant material, and the blower is a Roots blower; the remaining structures are the same as those in Example 1.

[0037] In this embodiment, movable protective windows are respectively provided on the operating surfaces of the sealing cover 7 on the reaction zone 1 side and the sealing cover 7 on the drying zone 2 side. The staff can directly observe the operation conditions in the continuous spinning machine through the protective windows. When an abnormal situation occurs and requires manual processing by the staff, the protective windows can be opened for processing. The protective windows, while ensuring the operation during production, play the role of sealing the machine, so that the exhaust gas in the protective windows does not leak out of the machine and affect the working environment of the employees.

[0038] Example 3

[0039] The present embodiment differs from the embodiment 2 in that, in the present embodiment, fans are respectively provided on the exhaust gas pipes on the reaction zone 1 side and the drying zone 2 side; the fans are centrifugal fans, and the air volume thereof corresponds to one or more spinning machines, ensuring that the sealing cover 7 on the reaction zone 1 side and the drying zone 2 side of the continuous spinning machine are both under negative pressure; the perforation 8.1 is a round hole with a smooth surface; and the remaining structure is the same as that of the embodiment 2.

[0040] In this embodiment, different fans are respectively arranged on the exhaust gas pipelines on the reaction zone 1 side and the drying zone 2 side. The fans on the exhaust gas pipelines on the reaction zone 1 side and the drying zone 2 side have smaller exhaust volumes than existing fans, and the air volumes of respective wind zones are set according to different exhaust gas concentrations on the reaction zone 1 side and the drying zone 2 side. The reaction zone 1 achieves high exhaust gas concentration and low air volume, thereby reducing the burden of subsequent processing for the enterprise and improving economic benefits.

[0041] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. An environmentally friendly zoned sealed continuous spinning machine, comprising a reaction zone (1) and a drying zone (2), wherein the reaction zone (1) comprises a reaction chamber (3), a forming tube (4) and at least two spinning rollers (5), and the drying zone (2) comprises at least two drying rollers (6), characterized in that: The spinning rollers (5) and drying rollers (6) are provided in the same number, one spinning roller (5) and one drying roller (6) form a group, each group of drying rollers (6) has the same diameter as the spinning rollers (5) and is coaxially connected via a rotating sealing assembly (9), a continuous spinning passage is formed between the reaction chamber (3), the forming tube (4), the spinning rollers (5) and the drying rollers (6), a sealing cover (7) is provided on the outside of the reaction zone (1) and the drying zone (2), a sealing baffle (8) is provided in the middle of the reaction zone (1) and the drying zone (2) for sealing the reaction zone (1) and the drying zone (2), the sealing baffle (8) being sealingly connected to the rotating sealing assembly (9); the sealing cover (7) on the side of the reaction zone (1) and the sealing cover (7) on the side of the drying zone (2) are respectively provided with exhaust gas pipelines; the sealing baffle (8) is provided with a perforation (8.1) for continuous conveying of filaments.

2. The environmentally friendly partition-sealed continuous spinning machine according to claim 1, characterized in that: The rotary sealing assembly (9) comprises a connecting shaft (9.1) and a rotary sealing device. The connecting shaft (9.1) passes through a sealing baffle (8). One end of the connecting shaft (9.1) is connected to the end of a spinning roller (5), and the other end of the connecting shaft (9.1) is connected to the end of a drying roller (6). The rotary sealing device is sleeved on the connecting shaft (9.1) and is sealed to the sealing baffle (8).

3. The environmentally friendly partition-sealed continuous spinning machine according to claim 2, characterized in that: The rotary sealing device comprises a bearing (9.2) and a sealing ring, wherein the bearing (9.2) is sleeved on the connecting shaft (9.1), the sealing ring is sleeved on the outside of the bearing (9.2), and the sealing ring is sealingly connected to the sealing baffle (8).

4. The environmentally friendly partition-sealed continuous spinning machine according to claim 1, characterized in that: The spinning rollers (5) are two rollers I, and the drying rollers (6) are two rollers II. The rollers I and II have the same diameter and are connected in a one-to-one correspondence via a rotating sealing assembly (9).

5. The environmentally friendly partition-sealed continuous spinning machine according to claim 1, characterized in that: The spinning rollers (5) are composed of one roller III and four rollers IV, and the drying rollers (6) are composed of one roller V and four rollers VI. The rollers III and V have the same diameter and are connected via a rotating seal assembly (9); the rollers IV and VI have the same diameter and are connected in a one-to-one correspondence via a rotating seal assembly (9), and the diameters of the rollers III and V are larger than those of the rollers IV and VI.

6. The environmentally friendly partition-sealed continuous spinning machine according to claim 1, characterized in that: The operating surfaces of the reaction zone (1) side sealing cover (7) and the drying zone (2) side sealing cover (7) are respectively provided with movable protective windows.

7. The environmentally friendly partition-sealed continuous spinning machine according to claim 1, characterized in that: Fans are respectively provided on the exhaust gas pipelines on the reaction zone (1) side and the drying zone (2) side.

8. The environmentally friendly partition-sealed continuous spinning machine according to claim 7, characterized in that: The fan is a centrifugal fan or a Roots blower.

9. The environmentally friendly partition-sealed continuous spinning machine according to claim 1, characterized in that: The perforations (8.1) are round holes or strip holes with smooth surfaces.

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