CN219597587U

CN219597587U - Spinning main pipeline stoste belt cleaning device

Info

Publication number: CN219597587U
Application number: CN202320149042.6U
Authority: CN
Inventors: 王浩; 王金科; 肖林霞; 谢文莹; 吴玉金; 陈建功
Original assignee: Fujian Hengshen Synthetic Fiber Technology Co ltd
Current assignee: Fujian Hengshen Synthetic Fiber Technology Co ltd
Priority date: 2023-02-02
Filing date: 2023-02-02
Publication date: 2023-08-29
Anticipated expiration: 2033-02-02

Abstract

The utility model relates to the field of spinning, in particular to a cleaning device for a spinning main pipeline stock solution. Comprises a first spinning groove, a second spinning groove and a corresponding first raw liquid pipeline and second raw liquid pipeline; the first spinning tank is provided with a DMAC inlet for cleaning and is connected with a DMAC inlet pipe, the first raw liquid pipeline is communicated with the second raw liquid pipeline, and the first spinning tank is communicated with the second spinning tank; the first stock solution pipeline is provided with a branch pipe with two ends communicated with the first stock solution pipeline, and the branch pipe is provided with a heater for heating DMAC; the other end of the first stock solution pipeline is extended with a DMAC discharge pipe. According to the utility model, the DMAC inlet pipe is newly added on the original spinning tank, DMAC is introduced into the spinning tank after stopping, and after heating, the DMAC is circularly cleaned, so that the cleaning effect is good, and the production efficiency can be improved. And two stock solution pipelines can be cleaned simultaneously by cleaning one spinning tank, so that the cleaning efficiency is high and the cost is lower.

Description

Spinning main pipeline stoste belt cleaning device

Technical Field

The utility model relates to the field of spinning, in particular to a cleaning device for a spinning main pipeline stock solution.

Background

The spinning solution of spandex is a mixed solution of 65% DMAC and 35% PTMG+MDI, after the spinning solution is filtered for the last time (F3425 filter), the mixed solution is pumped into a spinning tank (namely a spinning solution storage tank), the spinning tank is the last container of the solution before entering a spinning process, the function of the spinning solution is mainly to play a buffering role in the process of material operation, and when the production line is abnormal, the solution can be temporarily stored in the spinning tank.

The high viscosity dope flows in the dope line for a long period of time, and gel is generated on the wall of the dope line. Once the production is stopped and restarted, the flowing stock solution takes away gel on the wall, blocks the component filter screen, causes abnormal production of the spinning line, seriously influences the quality of the product, and causes caking of the product, and the subsequent process is seriously influenced. So that the pipe must be cleaned once production is stopped.

In the prior art, DMAC is generally adopted to clean the spinning tank regularly, and the independent cleaning of the spinning tank is simpler. However, the cleaning of the lines is difficult because the lines of the dope are long and the lines are many. The problem of cleaning the main spinning line after stopping is not considered at present.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a spinning main pipeline stock solution cleaning device which is used for cleaning a stock solution pipeline after stopping.

The utility model is realized in the following way:

a spinning main pipeline stock solution cleaning device comprises a first spinning tank, a second spinning tank, and a corresponding first stock solution pipeline and second stock solution pipeline; the first spinning tank is provided with a DMAC inlet for cleaning and is connected with a DMAC inlet pipe, the first raw liquid pipeline is communicated with the second raw liquid pipeline, and the first spinning tank is communicated with the second spinning tank; the first stock solution pipeline is provided with a branch pipe with two ends communicated with the first stock solution pipeline, and the branch pipe is provided with a heater for heating DMAC; the other end of the first stock solution pipeline is extended with a DMAC discharge pipe.

Further, the first stock solution pipeline and the second stock solution pipeline are detachably connected through a hose.

Further, the first spinning tank and the second spinning tank are detachably connected by a hose and connected to respective dope inlets.

Further, the stock solution inlet and the stock solution outlet of the second spinning groove are respectively provided with a three-way valve and are mutually connected.

Further, the stock solution inlet and the stock solution outlet of the second spinning groove are detachably connected through a hose.

Further, the input end and the output end of the heater are both provided with valves.

Further, the heater is a steam heating type heater.

Further, a discharge valve is arranged on the DMAC discharge pipe.

Further, the branch pipe and part of the first raw liquid pipeline are in an annular closed shape, and a valve is arranged on the part of the first raw liquid pipeline.

The utility model has the advantages that: according to the main spinning pipeline stock solution cleaning device, the DMAC inlet pipe is newly added on the original spinning tank, DMAC is introduced into the stopped spinning tank, and after heating, the main spinning pipeline stock solution cleaning device is used for circularly cleaning, so that the cleaning effect is good, and the production efficiency can be improved. And two stock solution pipelines can be cleaned simultaneously by cleaning one spinning tank, so that the cleaning efficiency is high and the cost is lower.

Drawings

The utility model will be further described with reference to examples of embodiments with reference to the accompanying drawings.

Fig. 1 is a schematic view of the structure of the present utility model, wherein broken lines indicate detachable connection of hoses.

The reference numerals in the figures illustrate:

the first spinning tank 1, the DMAC inlet 11, the seventh valve 12, the second spinning tank 2, the eighth valve 21, the first dope line 3, the first valve 31, the fourth valve 32, the ninth valve 33, the second dope line 4, the second valve 41, the third valve 42, the DMAC inlet pipe 5, the DMAC inlet pipe valve 51, the branch pipe 6, the fifth valve 61, the sixth valve 62, the DMAC outlet pipe 7, and the tenth valve 71.

Detailed Description

In the description of the present utility model, it should be understood that the description of indicating the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The technical scheme of the utility model is as follows:

referring to fig. 1, the primary spinning pipeline stock solution cleaning device of the present utility model includes a first spinning tank 1 and a second spinning tank 2, wherein stock solution outlets of the first spinning tank 1 and the second spinning tank 2 are respectively connected with a first stock solution pipeline 3 and a second stock solution pipeline 4 (both stock solution pipelines are provided with pressure pumps); the first spinning tank 1 is provided with a DMAC inlet 11 for cleaning and is connected with a DMAC inlet pipe 5, the first stock solution pipeline 3 is communicated with the second stock solution pipeline 4, and the first spinning tank 1 is communicated with the second spinning tank 2; a branch pipe 6 with two ends communicated with the first stock solution pipeline 3 is arranged on the first stock solution pipeline 3, and a heater for heating DMAC is arranged on the branch pipe 6; the other end of the first stock solution pipeline 3 is extended with a DMAC discharge pipe 7.

The valve assembly is as follows:

the head end and the tail end of the first raw liquid pipeline 3 are respectively provided with a first valve 31 and a fourth valve 32, the head end and the tail end of the second raw liquid pipeline 4 are respectively provided with a second valve 41 and a third valve 42, the output end and the input end of the heater are respectively provided with a fifth valve 61 and a sixth valve 62, the raw liquid inlet pipes of the first spinning tank 1 and the second spinning tank 2 are respectively provided with a seventh valve 12 and an eighth valve 21, the part of the first raw liquid pipeline which forms annular closure with the branch pipe 6 is provided with a ninth valve 33, and the DMAC discharge pipe 7 is provided with a tenth valve 71.

Wherein the second valve 41 and the eighth valve 21 are three-way valves.

The valve connection is as follows:

the third valve 42 is connected with the fourth valve 32 through a hose, the second valve 41 is connected with the eighth valve 21 through a hose, and the extension pipeline of the eighth valve 21 and the extension pipeline of the seventh valve 12 are connected from the polymerization end to form a loop, so that DMAC enters the first spinning tank 1 from the second spinning tank 2. The connection is a temporary connection pipeline, and the connection pipeline is removed after the cleaning is finished, so that the production is restored.

The specific implementation is as follows:

(1) Before washing, the stock solution was blown out with 6kg of compressed air.

(2) During cleaning, one spinning groove is used for cleaning two stock solution pipelines. DMAC enters from DMAC inlet pipe 5, opens ninth valve 33, allows DMAC to pass from first valve 31 through sixth valve 62, heat to above 120 ℃ by heater, and then enters first stock solution line 3 from fifth valve 61 for purging.

(3) The DMAC passes through the fourth valve 32 and the third valve 42 in sequence, and enters the second stock solution pipeline 4 for cleaning.

(4) The DMAC enters the second valve 41 through the second stock solution line 4 and from the second valve 41 into the eighth valve 21 and then through the seventh valve 12 back to the first spin basket 1. After a loop is completed, the DMAC inlet valve 51 may be closed for cycle purging.

(5) Every day a new DMAC is changed, the ninth valve 33 and the sixth valve 62 are closed, the tenth valve 71 is opened, and the cleaned DMAC is emptied into the recovery system. The DMAC inlet valve 51 is then opened for a new cycle of purging. The original pipe wall cleanliness can be recovered after three days of cleaning.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that the specific embodiments described are illustrative only and not intended to limit the scope of the utility model, and that equivalent modifications and variations of the utility model in light of the spirit of the utility model will be covered by the claims of the present utility model.

Claims

1. A spinning main pipeline stock solution cleaning device comprises a first spinning tank, a second spinning tank, and a corresponding first stock solution pipeline and second stock solution pipeline; the method is characterized in that: the first spinning tank is provided with a DMAC inlet for cleaning and is connected with a DMAC inlet pipe, the first raw liquid pipeline is communicated with the second raw liquid pipeline, and the first spinning tank is communicated with the second spinning tank; the first stock solution pipeline is provided with a branch pipe with two ends communicated with the first stock solution pipeline, and the branch pipe is provided with a heater for heating DMAC; the other end of the first stock solution pipeline is extended with a DMAC discharge pipe.

2. The spin main line dope cleaning device according to claim 1, wherein: the first raw liquid pipeline and the second raw liquid pipeline are detachably connected through a hose.

3. The spin main line dope cleaning device according to claim 1, wherein: the first spinning tank and the second spinning tank are detachably connected to each other through hoses and are connected to respective dope inlets.

4. The spin main line dope cleaning device according to claim 1, wherein: and the stock solution inlet end and the stock solution outlet end of the second spinning tank are respectively provided with a three-way valve and are mutually connected.

5. The spin main line dope cleaning apparatus as claimed in claim 4, wherein: and the stock solution inlet and the stock solution outlet of the second spinning groove are detachably connected through a hose.

6. The spin main line dope cleaning device according to claim 1, wherein: the input end and the output end of the heater are both provided with valves.

7. The spin main line dope cleaning apparatus as claimed in claim 6, wherein: the heater is a steam heating type heater.

8. The spin main line dope cleaning device according to claim 1, wherein: and a discharge valve is arranged on the DMAC discharge pipe.

9. The spin main line dope cleaning device according to claim 1, wherein: the branch pipe and part of the first raw liquid pipeline are in an annular closed shape, and a valve is arranged on the part of the first raw liquid pipeline.