CN107356491B

CN107356491B - Semi-automatic detection device for filtering value of spinning solution

Info

Publication number: CN107356491B
Application number: CN201710567219.3A
Authority: CN
Inventors: 任长秋; 贾宝泉; 左杨芬; 余世坤; 周金平
Original assignee: Sichuan Xin'anjia Technology Co ltd
Current assignee: Nanchong Shengdahong Technology Co ltd
Priority date: 2017-07-12
Filing date: 2017-07-12
Publication date: 2020-04-10
Anticipated expiration: 2037-07-12
Also published as: CN107356491A

Abstract

The invention provides a semi-automatic detection device for a filtering value of a spinning solution, which comprises a pressure table, a sample table, a weighing table, a control base, a fixed frame, a fixed weight, a sample delivery barrel, a pressure sensor and a filter, wherein the pressure table is arranged on the sample table; firstly, adding spinning solution into a sample sending barrel, sleeving a filter with a filter element. The spinning solution in the sample feeding barrel is pressed by the weight above the pressure table, passes through the filter, then flows into the beaker on the weighing table, and the control base is provided with a key and a display screen. The sample stage is provided with a pressure sensor. By setting, the control base can record the liquid which flows into the beaker after being filtered within a fixed time and support the recording of 1-3 groups of data. After filtration, the filtration value of the spinning solution can be obtained by observing the recorded data. The invention has the functions of weighing, automatic timing and the like. The characteristics of simplicity, convenience and visualization are beneficial to improving the inspection efficiency and precision, and the method has important significance for improving the production process and the product stability.

Description

Semi-automatic detection device for filtering value of spinning solution

Technical Field

The invention belongs to the field of spinning inspection devices, and particularly relates to a semi-automatic device for detecting a filtering value of a spinning solution.

Background

Solvent spinning is an important spinning means for chemical fibers, and mainly means that spinning is performed after spinning raw materials are dissolved into spinning solution and are subjected to spinning pretreatment such as filtration and deaeration. In the whole process, the quality of the spinning solution is a main influence factor of the filtering, defoaming and spinning processes. The quality of the spinning solution also determines the production cost. The spinning solution containing a large amount of impurities (insoluble substances, gel, etc.) causes a slow filtration speed, frequent replacement of the filter cloth, and also affects the quality of the fiber product. Therefore, the inspection of the spinning solution is an essential link in the chemical fiber industry. The methods for inspecting the quality of the spinning dope are various, and among them, the measurement of the filtration value is one of the most common and most convenient methods. The process can check the impurity content and quality of the spinning solution within minutes. However, the measurement of the filtering value is still tedious, and a direct and visual means and device are lacked. The development of simple and visual detection equipment is beneficial to the improvement of the detection efficiency and precision, and has important significance on the improvement of the production process and the product stability.

Disclosure of Invention

Aiming at the problems in the background art, the invention provides a spinning solution filtering value semi-automatic detection device.

The invention is realized by adopting the following technical scheme:

a semi-automatic detection device for a filtering value of spinning solution comprises a pressure table (1), a sample table (2), a weighing table (3), a control base (4), a fixing frame (5), a fixed weight (6), a sample delivery barrel (7), a pressure sensor (8) and a filter (10); the fixed frame (5) comprises four fixed rods arranged at four corners of the control base (4), and the four fixed rods form a quadrangle; the pressure table (1) is provided with four through holes corresponding to the positions of the fixing rods, the four fixing rods respectively penetrate through the four through holes, and the pressure table (1) can move up and down on the fixing rods; the sample table (2) is fixed on the fixed frame, and the pressure table (1), the sample table (2) and the weighing table (3) are sequentially arranged from top to bottom; a weight (6) is placed on the pressure table (1); the sample sending barrel (7) is in the shape of an injector and comprises a liquid storage barrel and a push rod, and the push rod can move in the liquid storage barrel; the push rod is positioned below the pressure platform (1) and is in contact with the pressure platform (1), the liquid outlet of the liquid storage barrel is communicated with the liquid inlet of the filter (10), and the liquid outlet of the filter (10) sequentially penetrates through the pressure sensor (8) and the sample platform (2); the pressure sensor (8) is connected with the control base (4) through a signal wire (9).

The control base (4) comprises a display screen (12), a key (13) and an internal control circuit; the internal control circuit comprises a central control unit, a weighing unit, a display unit, a recording unit, a time setting unit and a calculation setting unit, wherein the central control unit is respectively connected with the weighing unit, the calculation setting unit, the time setting unit and the display unit; the weighing platform is connected with the weighing unit, the time setting unit is connected with the keys, and the display unit is connected with the display screen.

And a positioning sleeve (11) is arranged between the through hole of the pressure platform and the fixed rod.

Firstly, adding spinning solution into a sample sending barrel, sleeving a filter with a filter element. The spinning solution in the sample feeding barrel is pressed by the weight above the pressure table, passes through the filter, then flows into the beaker on the weighing table, and the control base is provided with a key and a display screen. The sample stage is provided with a pressure sensor. By setting, the control base can record the liquid which flows into the beaker after being filtered within a fixed time and support the recording of 1-3 groups of data. After filtration, the filtration value of the spinning solution can be obtained by observing the recorded data.

Compared with the prior art, the invention has the functions of weighing, automatic timing and the like. The characteristics of simplicity, convenience and visualization are beneficial to improving the inspection efficiency and precision, and the method has important significance for improving the production process and the product stability.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the filter construction;

FIG. 3 is a schematic diagram of the control circuitry within the control base;

the automatic weighing device comprises a pressure table, a sample table, a weighing table, a control base, a fixing frame, a weight fixing frame, a sample conveying barrel, a pressure sensor, a signal line, a filter, a positioning sleeve, a display screen, a button, a liquid inlet, a filter element and a liquid outlet, wherein the pressure table is 1-1, the sample table is 2-3, the weighing table is 4-the control base is 5-the fixing frame, the weight fixing weight is 6-7-the sample conveying barrel, the pressure sensor is 8-9-the signal line, the filter.

Detailed Description

The invention will be further described with reference to examples of embodiments shown in the drawings.

As shown in fig. 1, the invention comprises a pressure table 1, a sample table 2, a weighing table 3, a control base 4, a fixed frame 5, a fixed weight 6, a sample feeding barrel 7, a pressure sensor 8 and a filter 10; the fixed frame 5 comprises four fixed rods arranged at four corners of the control base 4, and the four fixed rods form a quadrangle; the pressure table 1 is provided with four through holes corresponding to the positions of the fixing rods, the four fixing rods respectively penetrate through the four through holes, and the pressure table 1 can move up and down on the fixing rods; the sample table 2 is fixed on the fixed frame, and the pressure table 1, the sample table 2 and the weighing table 3 are sequentially arranged from top to bottom; the weight 6 is placed on the pressure table 1; the sample sending barrel 7 is in the shape of an injector and comprises a liquid storage barrel and a push rod, and the push rod can move in the liquid storage barrel; the push rod is positioned below the pressure platform 1 and is in contact with the pressure platform 1, the liquid outlet of the liquid storage barrel is communicated with the liquid inlet of the filter 10, and the liquid outlet of the filter 10 sequentially penetrates through the pressure sensor 8 and the sample platform 2; the pressure sensor 8 is connected to the control base 4 via a signal line 9.

The control base 4 comprises a display screen 12, a key 13 and an internal control circuit; the internal control circuit comprises a central control unit, a weighing unit, a display unit, a recording unit, a time setting unit and a calculation setting unit, wherein the central control unit is respectively connected with the weighing unit, the calculation setting unit, the time setting unit and the display unit; the weighing platform is connected with the weighing unit, the time setting unit is connected with the keys, and the display unit is connected with the display screen.

A positioning sleeve 11 is arranged between the through hole of the pressure table and the fixed rod to ensure that the pressure table moves up and down smoothly.

Firstly, spinning solution is added into a sample delivery barrel, a filter is sleeved on the sample delivery barrel, and a filter element (200-mesh and 300-mesh filter cloth) is arranged in the filter. The fixed pressure is provided by the weight of 1-5 kilograms above the weighing platform, the spinning solution in the injector can be pressed to pass through the filter by putting the weight on the pressure platform, then the spinning solution flows into the beaker on the weighing platform, and the control base is provided with a key and a display screen. The sample table is provided with a pressure sensor, and when the weight of the sample table exceeds 1kg, a signal is transmitted to the control base to start timing. By setting, the control base can record the liquid which flows into the beaker after being filtered within a fixed time and support the recording of 1-3 groups of data. After filtration, the filtration value of the spinning solution can be obtained by observing the recorded data. Under the same conditions, the larger the weight of filtration, the larger the filtration value.

Example 1

First, 100 g of a spinning solution was put into a sample feed tank, and a 250-mesh round filter cloth was put into a filter. The glue outlet of the installed filter is placed in the small hole of the sample table, the glue outlet penetrates through the small hole, the upper part of the sample delivery barrel is attached to the pressure table, and the sample delivery barrel is guaranteed to be vertically fixed. And a control base is arranged, the first recording time is 60 seconds, and the second recording time is 300 seconds. After zero clearing, the weight is placed on the pressure table. The weight of the weight pushes a push rod in the sample delivery barrel to extrude the spinning solution. The filter element in the filter can filter impurities in the spinning solution, the filter resistance of the filter increases along with the increase of the filter time because the filter cloth continuously accumulates the impurities in the spinning solution, and when the resistance is larger than or equal to the pressure provided by the weight, the spinning solution does not flow out. During the filtration process, the outflow speed of the spinning solution is also reduced along with the increase of impurities on the filter cloth. When the predetermined time is over, the weight can be removed and the measurement of the filtered value is over. And calculating a filtering value according to the number on the display screen. The weight discharged in the first 60 seconds of 1 was m1, and the weight discharged in the last 300 seconds was m 2. According to the requirement of a tester, the central control unit can be instructed to calculate the filtering resistance value according to a filtering resistance value calculation formula Kw [ (2- (m2/m1) ] + 100000/(m1+ m2) (Kw is the filtering resistance value, the unit is gram, FZ/T50010.14-2014), and the filtering resistance value is displayed on a display screen, so that the quality of the spinning solution is judged.

Claims

1. The utility model provides a semi-automatic detection device of spinning liquid filter value which characterized in that: comprises a pressure table (1), a sample table (2), a weighing table (3), a control base (4), a fixed frame (5), a fixed weight (6), a sample conveying barrel (7), a pressure sensor (8) and a filter (10); the fixed frame (5) comprises four fixed rods arranged at four corners of the control base (4), and the four fixed rods form a quadrangle; the pressure table (1) is provided with four through holes corresponding to the positions of the fixing rods, the four fixing rods respectively penetrate through the four through holes, a positioning sleeve (11) is arranged between the through holes of the pressure table (1) and the fixing rods, and the pressure table (1) can move up and down on the fixing rods; the sample table (2) is fixed on the fixed frame, and the pressure table (1), the sample table (2) and the weighing table (3) are sequentially arranged from top to bottom; a weight (6) is placed on the pressure table (1); the sample sending barrel (7) is in the shape of an injector and comprises a liquid storage barrel and a push rod, and the push rod can move in the liquid storage barrel; the push rod is positioned below the pressure platform (1) and is in contact with the pressure platform (1), the liquid outlet of the liquid storage barrel is communicated with the liquid inlet of the filter (10), and the liquid outlet of the filter (10) sequentially penetrates through the pressure sensor (8) and the sample platform (2); the pressure sensor (8) is connected with the control base (4) through a signal wire (9).

2. The semi-automatic detection device of the filtering value of the spinning solution according to claim 1, characterized in that: the control base (4) comprises a display screen (12), a key (13) and an internal control circuit; the internal control circuit comprises a central control unit, a weighing unit, a display unit, a recording unit, a time setting unit and a calculation setting unit, wherein the central control unit is respectively connected with the weighing unit, the calculation setting unit, the time setting unit and the display unit; the weighing platform is connected with the weighing unit, the time setting unit is connected with the keys, and the display unit is connected with the display screen.