CN219758196U - Detection equipment for filter pressing value of colorant - Google Patents
Detection equipment for filter pressing value of colorant Download PDFInfo
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- CN219758196U CN219758196U CN202320683414.3U CN202320683414U CN219758196U CN 219758196 U CN219758196 U CN 219758196U CN 202320683414 U CN202320683414 U CN 202320683414U CN 219758196 U CN219758196 U CN 219758196U
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- 238000003825 pressing Methods 0.000 title claims abstract description 40
- 239000003086 colorant Substances 0.000 title claims abstract description 32
- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 239000006185 dispersion Substances 0.000 claims abstract description 53
- 239000000155 melt Substances 0.000 claims abstract description 30
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 238000011045 prefiltration Methods 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000012360 testing method Methods 0.000 abstract description 26
- 238000000034 method Methods 0.000 abstract description 24
- 239000004595 color masterbatch Substances 0.000 abstract description 18
- 239000000463 material Substances 0.000 abstract description 17
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 229920000642 polymer Polymers 0.000 description 9
- 239000000835 fiber Substances 0.000 description 8
- 238000004043 dyeing Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- 238000002156 mixing Methods 0.000 description 6
- 238000009987 spinning Methods 0.000 description 6
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000004594 Masterbatch (MB) Substances 0.000 description 4
- 238000004040 coloring Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000049 pigment Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 239000006229 carbon black Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 239000004753 textile Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 241000234435 Lilium Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010035 extrusion spinning Methods 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000011085 pressure filtration Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The utility model discloses a detection device for a colorant filter pressing value, which comprises a driving motor, a double-screw extruder, a melt pump, a pre-filtering pressure sensor and a filter screen; the double-screw extruder comprises a first screw and a second screw, and the driving motor drives the first screw and the second screw to rotate; the input end of the melt pump is connected with the outlet of the double-screw extruder; the output end of the melt pump is connected with the filter screen; the pre-filtration pressure sensor is arranged between the melt pump and the filter screen. The double-screw extruder is provided with a feed inlet, the feed inlet is connected with a dispersing device, and the dispersing device is provided with a feed inlet. The utility model can not only realize the pre-dispersion of the materials entering the double-screw extruder, but also directly detect the filter pressing value of the toner, reduce the process of preparing the color master batch by the toner, avoid the interference of the link of manufacturing the color master batch on the filter pressing value, shorten the process flow and improve the accuracy of the filter pressing value test.
Description
Technical Field
The utility model relates to the technical field of fine chemical engineering, in particular to detection equipment for a colorant filter pressing value.
Background
The textile industry is the traditional prop industry of the national economy in China, wherein printing and dyeing are important links of the textile industry. The average water consumption per 1 ton of textile processed in the printing and dyeing industry in China exceeds 100 tons, wherein 80-90% of the water is waste water; the printing and dyeing industry has the problems of large wastewater amount, high organic pollutant content, large alkalinity, large water quality change, difficult treatment and the like, and is faced with huge energy-saving and emission-reducing pressure. Colored fibers are prepared by coloring the fibers by pre-or post-spin coloring a colorant. The dyeing process after spinning is complex, the flow is long, and the generated waste water is more and the energy consumption is high; the pre-spinning coloring is to add the coloring agent into the spinning solution before spinning the fiber, so that the steps of dyeing and post-dyeing treatment are reduced, the process is simple, the flow is short, the generated waste water is less, and the energy consumption is low, therefore, the post-spinning dyeing is gradually replaced by the pre-spinning coloring technology. The existing coloring agent comprises toner, liquid dispersion and color master batch, wherein the raw materials in the liquid dispersion and the color master batch contain the toner. The compatibility of toner with resin is a major factor affecting fiber chromaticity, color fastness, uniformity: the toner has good compatibility with resin, good dispersibility of the toner in the resin, good spinnability of the fiber, high chromaticity and color fastness of the fiber and uniform color of the fiber.
One method commonly used in the prior art for detecting toner performance is filter press value testing, where the filter press value is an effective characteristic value that characterizes the degree of dispersion of the powder in the polymer matrix. The filter pressing value of the powder is controlled within a certain range, so that the powder is highly uniformly dispersed in the polymer matrix, and the prepared color master batch can be suitable for preparing products such as high-quality films, fibers and the like. The filter pressing value test consists of an extruder, a melt pump, a melt pressure sensor, a filter and the like, and is mainly used for the filter pressing value test of color master batches. British Standard EN13900-5:2005 part 5 pigment and filler diffusion method and evaluation of the diffusivity in plastics: the colorant in the form of a color concentrate in all polymers suitable for use in extrusion and melt spinning processes was determined by the press filtration value test, using a single screw extruder with smooth, slotless barrel and using screws without dispersion elements. According to the technical content of British Standard EN13900-5:2005, the company Limited of the lily group has drafted the chemical industry Standard HG/T4786.5-2014, evaluation of dispersibility in pigment and extender pigment plastics, part 5: colorant dispersibility was measured by the hot melt extruder method. U.S. patent publication No. US 2011244384A 1 discloses a carbon black particle, a method for preparing a carbon black particle and its use, and a method employing DIN EN13900-5 in testing the pressure filtration value of a carbon black particle. The patent with publication number CN109750385A discloses a continuous production system and a preparation method of functional polyester, wherein the press filtration performance test is carried out by press filtration value when the performance of the functional polyester is measured, and the extruder is a single screw extruder.
Because the single screw extruder has only the melting function, the dispersion performance of materials is not good, so that the color master batch can only be tested. For toner or liquid dispersions, it is necessary to prepare the color forming master batch from the toner or liquid colorant before performing the press value test. The color master batch is prepared by mixing and mixing the toner, the carrier resin, various fillers and various assistants, and carrying out the processes of metering, mixing, melting, extruding, granulating and the like by using equipment such as an extruder and the like. When the color powder is tested for the filter pressing value, the color powder is required to be mixed with the base resin, and then the mixture is granulated by a double-screw extruder to prepare color master batches, and then the filter pressing value is tested. The preparation process of the color master batch is long and complex, and the preparation technology has influence on the color master batch, so that the result is influenced in the subsequent filter pressing value test, and the problem of the color powder or the influence of the preparation technology cannot be well judged.
The existing equipment is used for testing the filter pressing value of the color master batch, and no equipment for directly detecting the filter pressing value of the color powder is known. The utility model patent with publication number of CN204008669U discloses a filter pressing value tester, which comprises a computer measurement and analysis system, a single screw extruder composition, a melt pump and other components, and is used for testing the filter pressing value of masterbatch; the utility model patent with publication number of CN212432899U discloses a filter for testing the dispersibility of high-concentration monochromatic master batch by using filtering pressure, which comprises a motor, a display screen, a pressure sensor, a melt pump, a screw and other components, is used for detecting the dispersibility of the master batch, and adopts a filtering pressure method for detection.
However, the prior art is a filter press value test performed on the color master batch, and no device or method for directly detecting the filter press value of the toner is known.
Disclosure of Invention
In order to solve the technical problems, the utility model aims to provide a detection device for a colorant filter pressing value. The utility model can not only realize the pre-dispersion of the materials entering the double-screw extruder, but also directly detect the filter pressing value of the toner, reduce the process of preparing the color master batch by the toner, avoid the interference of the link of manufacturing the color master batch on the filter pressing value, shorten the process flow and improve the accuracy of the filter pressing value test.
In order to achieve the technical purpose and the technical effect, the utility model is realized by the following technical scheme:
the detection equipment for the filter pressing value of the colorant comprises a driving motor, a double-screw extruder, a melt pump, a pre-filtering pressure sensor and a filter screen;
the double-screw extruder comprises a first screw and a second screw, and the driving motor drives the first screw and the second screw to rotate;
the input end of the melt pump is connected with the outlet of the double-screw extruder; the output end of the melt pump is connected with the filter screen;
the pre-filtration pressure sensor is arranged between the melt pump and the filter screen;
the double-screw extruder is provided with a feed inlet, the feed inlet is connected with a dispersing device, and the dispersing device is provided with a feed inlet.
Further, the detection apparatus further includes a pre-pump pressure sensor disposed between the outlet of the twin screw extruder and the melt pump. According to the pressure value of the pressure sensor in front of the pump, the rotating speed of the melt pump can be controlled to a certain degree.
Further, the driving motor drives the first screw rod and the second screw rod to rotate through a transmission mechanism; the transmission mechanism is a gear transmission mechanism; the gear transmission mechanism comprises a driving wheel and a driven wheel; the head end of the shaft body of the first screw is connected with the driving motor, and the driving wheel is arranged on the outer end part of the first screw; the driven wheel is arranged on the outer end part of the second screw rod; the driving wheel is meshed with the driven wheel for transmission.
Further, a feeding hole is formed in the double-screw extruder, a dispersing device is connected to the feeding hole, and a feeding hole is formed in the dispersing device.
Further, the dispersing device comprises a dispersing motor, a dispersing shell, a dispersing shaft and a dispersing disc; the dispersing disc is arranged in the dispersing shell and is connected with the dispersing shaft; the dispersing motor is arranged on the top of the dispersing shell, and the dispersing shaft is connected with the dispersing motor; the upper surface of dispersion plate is equipped with a plurality of vertical setting's last dispersion stick, and the lower surface of dispersion plate is equipped with a plurality of vertical setting's lower dispersion stick.
Further, the bottom of the dispersing shell is of a structure with a low middle and high periphery.
Further, the bottom of the dispersing shell is of an arc-shaped structure.
Further, the spacing between each lower dispersion bar and the bottom of the dispersion housing is equal.
Further, the discharge port of the dispersing shell is connected with the feed port of the double-screw extruder, and a feed valve is further arranged between the discharge port of the dispersing shell and the feed port of the double-screw extruder.
The method for detecting the filter pressing value of the colorant by using the detection equipment comprises the following steps:
(1) Firstly, adding a mass m into a double-screw extruder 1 Is a polymer blank slice of (2); the driving motor drives the first screw and the second screw of the double-screw extruder to rotate; materials in the double-screw extruder are extruded by the double-screw extruder, and the extruded materials are conveyed to a filter screen by a melt pump and flow out after being filtered; recording the pressure value of the prefilter pressure sensor in the test process and transporting the pressure value in a melt pressure curveRecording initial pressure value P at line plateau 0 ；
(2) Then adding a mass m into a double screw extruder c The mass of the colorant is m 2 The polymer blank slice mixture is added with the mass of m after the mixture is used up 1 Is used for recording the maximum pressure value P of the pre-filter pressure sensor during the test max ；
(3) Stopping the operation of the driving motor, and calculating a filter pressing value of the colorant according to the formula (I):
DF＝(P max -P 0 )*S/m c (I)
wherein DF is the filter pressing value, and the unit is MPa.cm 2 /g；P max Maximum pressure, unit MPa; p (P) 0 Initial pressure, in MPa; s is the area of the filter screen, and the unit is cm 2 ；m c The mass of the colorant is given in g.
In the method, the materials entering the double-screw extruder are firstly subjected to dispersion mixing treatment by an upper dispersion rod and a lower dispersion rod in a dispersion device.
The beneficial effects of the utility model are as follows:
the detection equipment provided by the utility model adopts a double-screw extruder to replace a single-screw extruder, is matched with a pressure sensor (pre-filtration pressure sensor) arranged in front of a filter screen, can be directly used for detecting the filter pressing value of the toner, reduces the process of preparing the color master batch from the toner, avoids the interference of a link for manufacturing the color master batch on the filter pressing value, shortens the process flow, and improves the accuracy of the filter pressing value test.
In addition, the detection equipment is also provided with a dispersing device so as to realize pre-dispersion of materials and promote mixing of the toner to be detected and the polymer blank slice; in addition, the bottom of the dispersing shell is in a shape with low middle and high periphery, so that materials can flow out conveniently, and a large amount of materials cannot remain in the dispersing device; the distance between each lower dispersing rod and the bottom of the dispersing shell is consistent, so that the contact probability of the dispersing rods and materials is increased, and the dispersing speed of the materials is improved.
Drawings
FIG. 1 is a schematic structural diagram of a device for detecting the filter pressing value of a colorant according to the present utility model.
FIG. 2 is a schematic structural view of a dispersing device in the apparatus for detecting the press filtration value of a colorant according to the present utility model.
In the figure, 1: a driving motor; 2: twin screw extruder, 21: first screw, 22: second screw, 23: driving wheel, 24: driven wheel, 25: a feed inlet; 3: a melt pump; 4: a pre-filter pressure sensor; 5: a filter screen; 6: a pump front pressure sensor; 7: dispersing device, 71: a dispersion motor, 72: dispersion housing, 73: dispersion axis, 74: dispersion disk, 75: upper dispersion bar, 76: lower dispersion bar, 77: feed valve, 78: and a feeding port.
Detailed Description
The following description of the embodiments of the present utility model will be made more apparent and fully by reference to the accompanying drawings, in which it is shown, by way of illustration, only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
A preferred embodiment of a colorant press value detection apparatus shown in fig. 1 comprises a drive motor 1, a twin screw extruder 2, a melt pump 3, a pre-filter pressure sensor 4, and a filter screen 5;
the double-screw extruder 2 comprises a first screw 21 and a second screw 22 which are parallel to each other, and the driving motor 1 drives the first screw 21 and the second screw 22 to rotate through a transmission mechanism; in this embodiment, the transmission mechanism is a gear transmission mechanism; the gear transmission mechanism comprises a driving wheel 23 and a driven wheel 24; the head end of the shaft body of the first screw rod 21 is connected with the driving motor 1, and the driving wheel 23 is arranged on the outer end part of the first screw rod 21; the driven wheel 24 is arranged on the outer end of the second screw 22; the driving motor 1 operates, and the driving wheel 23 is meshed with the driven wheel 24 to drive the first screw 21 and the second screw 22 of the double-screw extruder 2 to rotate in opposite directions.
The input end of the melt pump 3 is connected with the outlet of the double-screw extruder 2 through a conveying pipeline; the output end of the melt pump 3 is connected with the filter screen 5 through a conveying pipeline; the screen 5 is supported on a filter plate. The filter screen is connected with a discharge die head through a conveying pipeline.
The pre-filter pressure sensor 4 is arranged between the melt pump 3 and the filter screen 5. The pre-filter pressure sensor 4 is used to detect the pre-filter melt pressure. A pre-pump pressure sensor 6 is also arranged between the outlet of the twin-screw extruder 2 and the melt pump 3. According to the pressure value of the pressure sensor 6 before the pump, the rotation speed of the melt pump 3 can be regulated and controlled to a certain degree.
The twin-screw extruder 2 is provided with a feed inlet 25, the feed inlet 25 is connected with a dispersing device 7, and the dispersing device 7 is provided with a feed inlet 78.
As shown in fig. 2, the dispersing device 7 includes a dispersing motor 71, a dispersing housing 72, a dispersing shaft 73, and a dispersing disc 74; a dispersion plate 74 is provided in the dispersion housing 72; the middle part of the dispersion disk 74 is connected with the dispersion shaft 73; the dispersion shaft 73 passes upward through the dispersion housing 72; the dispersion motor 71 is fixedly disposed on the top of the dispersion housing 72 by a fixed support structure (not shown), and the dispersion shaft 73 is connected to the dispersion motor 71; the upper surface of the dispersion plate 74 is provided with a plurality of vertically arranged upper dispersion bars 75, and the lower surface of the dispersion plate 74 is provided with a plurality of vertically arranged lower dispersion bars 76.
The bottom of the dispersion housing 72 has a structure with a low middle and a high periphery, and specifically, in this embodiment, the bottom of the dispersion housing 72 has an arc-shaped structure.
The spacing between each lower dispersion bar 76 and the bottom of the dispersion housing 72 is equal.
The discharge port of the dispersion housing 72 is connected with the feed port 25 of the twin-screw extruder 2, and a feed valve 77 is further provided between the discharge port of the dispersion housing 72 and the feed port of the twin-screw extruder 2.
The detection method for detecting the filter pressing value of the colorant by using the detection equipment comprises the following steps:
(1) Feeding a twin-screw extruder 2 with a mass m 1 Is a polymer blank slice of (2); the driving motor 1 drives a first screw 21 and a second screw 22 of the twin-screw extruder 2; the materials in the double-screw extruder 2 pass through the double-screw extruder 2Mixing, melting and extruding, wherein the extruded material is conveyed to a filter screen 5 through a melt pump 3, filtered and flows out through a discharge die head; recording the pressure value of the prefilter pressure sensor in the test process, and recording the initial pressure value P when the melt pressure curve runs stably 0 ；
(2) Then the twin-screw extruder 2 was fed with a mass m c The mass of the colorant (toner) is m 2 The polymer blank slice mixture is added with the mass of m after the mixture is used up 1 Is used for recording the maximum pressure value P of the pre-filter pressure sensor 4 during the test max ；
(3) Stopping the operation of the driving motor 1, and calculating the filter pressing value of the colorant by the formula (I):
DF＝(P max -P 0 )*S/m c (I)
wherein DF is the filter pressing value, and the unit is MPa.cm 2 /g；P max Maximum pressure, unit MPa; p (P) 0 Initial pressure, in MPa; s is the area of the filter screen, and the unit is cm 2 ；m c The mass of the colorant is given in g.
In the above method, the materials entering the twin-screw extruder 2 are first subjected to the dispersing and mixing treatment by the dispersing device 7, specifically, the dispersing motor 71 drives the dispersing disc 74 to rotate by the dispersing shaft 73, the upper dispersing rod 75 and the lower dispersing rod 76 rotate along with the dispersing disc 74, so as to disperse the materials in the dispersing shell 72, so that the materials are uniformly mixed, then the feeding valve 77 is opened, and the materials enter the twin-screw extruder 2 from the feeding port 25 of the twin-screw extruder 2.
The utility model is further illustrated by the following specific examples.
The diameter of the twin-screw extruder in the detection equipment is 25mm, and the length-diameter ratio is 25:1, the area S of the filter screen is 3.8cm 2 Five-layer combined filter screen 50-120-1400-120-50 mesh. Mass m of polymer blank 1 750g; the mass of the mixture is 4000g, wherein the mass m of the coloring agent c 500g.
The detection equipment is utilized to test the filter pressing values of four kinds of toner of black, white, red and blue according to the detection method, and each color is tested 5 times; and meanwhile, conventional filter pressing value testing equipment and method (the toner is firstly prepared into color master batches, and then the equipment and method related to the measurement of the filter pressing value test are used according to British standard EN13900-5:2005, pigment and filler-diffusion method and diffusibility assessment in plastics, section 5). The test data are shown in tables 1 and 2.
TABLE 1 Filter Press values obtained by the inventive apparatus test
| DF-1 | DF-2 | DF-3 | DF-4 | DF-5 | Average value of | Variance of | Standard deviation of | |
| Black color | 0.15 | 0.13 | 0.18 | 0.21 | 0.15 | 0.164 | 0.00078 | 0.02800 |
| White color | 0.19 | 0.25 | 0.29 | 0.21 | 0.28 | 0.244 | 0.00150 | 0.03878 |
| Red color | 0.33 | 0.41 | 0.48 | 0.37 | 0.35 | 0.388 | 0.00282 | 0.05307 |
| Blue color | 1.20 | 1.37 | 1.42 | 1.34 | 1.44 | 1.354 | 0.00718 | 0.08476 |
TABLE 2 Filter pressing values from prior equipment and method tests
As shown by the filter pressing value test result, the filter pressing value variance and standard deviation obtained by the test of the existing equipment and method are larger, and the filter pressing value variance and standard deviation obtained by the detection equipment and the matched detection method are smaller.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all modifications and equivalents made by the present utility model and the accompanying drawings, or direct or indirect application in other related arts, are included in the scope of the present utility model.
Claims (8)
1. The detection equipment for the filter pressing value of the colorant is characterized by comprising a driving motor, a double-screw extruder, a melt pump, a pre-filtering pressure sensor and a filter screen;
the double-screw extruder comprises a first screw and a second screw, and the driving motor drives the first screw and the second screw to rotate;
the input end of the melt pump is connected with the outlet of the double-screw extruder; the output end of the melt pump is connected with the filter screen;
the pre-filtration pressure sensor is arranged between the melt pump and the filter screen;
the double-screw extruder is provided with a feed inlet, the feed inlet is connected with a dispersing device, and the dispersing device is provided with a feed inlet.
2. The apparatus for detecting a colorant press fit value according to claim 1, further comprising a pre-pump pressure sensor disposed between an outlet of the twin screw extruder and the melt pump.
3. The apparatus for detecting a press filtration value of a colorant according to claim 1, wherein the driving motor drives the first screw and the second screw to rotate through a transmission mechanism; the transmission mechanism is a gear transmission mechanism; the gear transmission mechanism comprises a driving wheel and a driven wheel; the head end of the shaft body of the first screw is connected with the driving motor, and the driving wheel is arranged on the outer end part of the first screw; the driven wheel is arranged on the outer end part of the second screw rod; the driving wheel is meshed with the driven wheel for transmission.
4. The apparatus for detecting a press filtration value of a colorant according to claim 1, wherein the dispersing means comprises a dispersing motor, a dispersing housing, a dispersing shaft, and a dispersing disc; the dispersing disc is arranged in the dispersing shell and is connected with the dispersing shaft; the dispersing motor is arranged on the top of the dispersing shell, and the dispersing shaft is connected with the dispersing motor; the upper surface of dispersion plate is equipped with a plurality of vertical setting's last dispersion stick, and the lower surface of dispersion plate is equipped with a plurality of vertical setting's lower dispersion stick.
5. The apparatus for detecting a press filtration value of a colorant according to claim 4, wherein the bottom of the dispersion housing has a structure with a low middle and a high periphery.
6. The apparatus for detecting a press fit value of a colorant according to claim 5, wherein the bottom of the dispersion housing has an arcuate configuration.
7. The apparatus for detecting a press-filter value of a colorant according to claim 4 or 5, wherein a distance between each lower dispersion bar and the bottom of the dispersion housing is equal.
8. The apparatus for detecting a press filtration value of a colorant according to claim 4, wherein the discharge port of the dispersing casing is connected to the feed port of the twin-screw extruder, and a feed valve is further provided between the discharge port of the dispersing casing and the feed port of the twin-screw extruder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320683414.3U CN219758196U (en) | 2023-03-31 | 2023-03-31 | Detection equipment for filter pressing value of colorant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320683414.3U CN219758196U (en) | 2023-03-31 | 2023-03-31 | Detection equipment for filter pressing value of colorant |
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| Publication Number | Publication Date |
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| CN219758196U true CN219758196U (en) | 2023-09-26 |
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| CN202320683414.3U Active CN219758196U (en) | 2023-03-31 | 2023-03-31 | Detection equipment for filter pressing value of colorant |
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