CN112986092B - Activated carbon filtration rate detection device and filtration rate detection method thereof - Google Patents
Activated carbon filtration rate detection device and filtration rate detection method thereof Download PDFInfo
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Abstract
The application relates to the technical field of filtration rate detection, and particularly discloses an activated carbon filtration rate detection device and a filtration rate detection method thereof. A method for detecting the filtration rate of activated carbon comprises the following steps: weighing a certain amount of active carbon of a dry sample in a triangular flask, adding distilled water, shaking uniformly, pouring into a suction filtration funnel, starting a power supply to carry out suction filtration to form a filter cake, and closing the power supply; measuring distilled water by using a measuring cylinder, pouring the distilled water into a suction flask along the wall of the suction flask, starting a power supply to carry out suction filtration, and starting timing; and (3) after the water on the carbon layer is dry, timing is finished, the power supply is turned off, the time is recorded, and the operation is repeated for 3 times, so that the filtration rate of the activated carbon can be detected. The filtering speed detection method has the advantages of simple operation and controllable conditions, and meanwhile, the detected filtering speed of the activated carbon is more accurate, and the more accurate filtering speed of the activated carbon is obtained through multiple detections.
Description
Technical Field
The application relates to the technical field of filtration rate detection, in particular to an active carbon filtration rate detection device and a filtration rate detection method thereof.
Background
The active carbon is a black solid substance which is developed pores through gasification (carbonization and activation) and takes carbon as a skeleton structure, and the developed pores enable the active carbon to have a large specific surface area and good adsorption characteristics.
In the correlation technique, active carbon filtration rate detection device includes erlenmeyer flask, suction filtration funnel and buchner flask, and the top of suction filtration funnel is connected through anchor clamps with the bottom of buchner flask for be connected closely between suction filtration funnel and the buchner flask, be convenient for the distilled water filters from the active carbon filter cake.
Aiming at the related technologies, when the filtering speed of the activated carbon is detected, a filter cake formed on the suction filter funnel is not uniform, and the filtering speed of the activated carbon is detected inaccurately.
Disclosure of Invention
In order to accurately detect the filtering speed of the activated carbon, the application provides an activated carbon filtering speed detection device and a filtering speed detection method thereof.
In a first aspect, the present application provides an active carbon filtration rate detection device, which adopts the following technical scheme:
the utility model provides an active carbon filtration rate detection device, is including being the uncovered erlenmeyer flask that sets up, the top of erlenmeyer flask is provided with the suction filtration funnel, the periphery lateral wall intercommunication of suction filtration funnel is provided with the connecting pipe, suction filtration funnel top is provided with open suction filtration bottle, be formed with the filter cake between suction filtration funnel and the suction filtration bottle, the top of suction filtration funnel with the bottom centre gripping of suction filtration bottle has anchor clamps, install on the anchor clamps and can tensile sealing strip, the sealing strip includes inner sealing strip and outer sealing strip, the periphery of anchor clamps all is provided with locking screw, the last screw thread of locking screw is provided with lock nut, outer sealing strip's one end is locked through anti-disengaging nut, and its other end locks through the locking piece, the joint groove has been seted up to outer sealing strip's tip, the locking piece includes the joint piece with locking screw threaded connection, the joint piece is kept away from lock nut's one end rotation and is provided with the turning block.
By adopting the technical scheme, the clamp is clamped between the suction filtration funnel and the suction filtration bottle, the sealing strip is arranged on the clamp and locked by the locking screw, the locking nut and the locking piece, so that the suction filtration funnel and the suction filtration bottle are connected more tightly, water is not easy to permeate through a gap at the joint, distilled water is enabled to completely flow into the conical flask, an active carbon filter cake layer is not easy to have water residue, a filter cake is more easy to filter, the filtering time is observed to be more accurate, and the accuracy of active carbon filtering speed detection is improved; meanwhile, the sealing strip can be conveniently detached and clamped.
Preferably, the junction of erlenmeyer flask and suction filtration funnel sets up to the dull polish layer, the junction of suction filtration funnel and suction filtration bottle sets up to the dull polish layer.
Through adopting above-mentioned technical scheme, the setting on dull polish layer has the advantage that improves the compactness of junction, and the distilled water is difficult for running off from the junction, and the cake layer of active carbon is difficult for having water to remain, is convenient for observe the dry time of straining the cake layer more accurate, and the detection of active carbon filtration rate is more accurate.
Preferably, a graduated scale is arranged on the outer side wall of the body of the suction flask.
Through adopting above-mentioned technical scheme, the scale is used for observing whether the distilled water in the buchner flask is strained futilely, has the effect of instructing the scale, is convenient for observe the time of straining futilely in the buchner flask, improves the accuracy that the active carbon filtration rate detected.
Preferably, a bottle cap is arranged at the top end of the filter flask, and a sealing ring is arranged at the bottom of the bottle cap.
Through adopting above-mentioned technical scheme, when the moisture in the air is more, the setting up of bottle lid makes the filter cake can keep dry state for a long time, improves the effect of filtering of active carbon, and then very accurate observation filter cake is strained futilely, and setting up of sealing washer makes the bottle lid be connected inseparabler with the buchner flask, strengthens the guard action of bottle lid.
In a second aspect, the present application provides a method for detecting a filtration rate of activated carbon, which adopts the following technical scheme:
a method for detecting the filtration rate of activated carbon comprises the following steps:
s1, preparing a dried activated carbon sample to form a filter cake;
s2, measuring distilled water by using a measuring cylinder, pouring the distilled water into a suction flask along the wall of the suction flask, starting a power supply to carry out suction filtration, and starting timing;
and S3, after the carbon layer is dried, timing is finished, the power supply is turned off, time is recorded, and the operation is repeated for 3 times, so that the filtration rate of the activated carbon can be detected.
By adopting the technical scheme, firstly, the activated carbon filter cake is prepared, then the speed is measured, the measured filtering speed of the activated carbon filter cake is more accurate, the filter cake layer is fresh, the water draining condition on the activated carbon layer is observed, the water draining time of the suction filtration is recorded, and the filtration rate of the activated carbon is further measured. The detection method has the advantages of being simple to operate and controllable in conditions.
Preferably, the preparation steps of the filter cake are as follows: weighing a certain amount of active carbon of a dry sample in a triangular flask, adding distilled water, after shaking up, pouring the mixture into a suction filtration funnel, starting a power supply to carry out suction filtration to form a filter cake, and turning off the power supply.
By adopting the technical scheme, a certain amount of active carbon is weighed by using a triangular flask, water is added, the mixture is shaken up to prepare a filter cake, the filter cake with a certain thickness can be formed on the suction filter funnel, the filter cake can be effectively prepared, the operation is convenient, and the cost is saved.
Preferably, medium-speed qualitative filter paper is placed on the suction filter funnel.
Through adopting above-mentioned technical scheme, the filter cake layer that forms of certain thickness is formed simultaneously in the filter cake layer that can be better attached to suction filter funnel surface of the filter cake that makes the qualitative filter paper of intermediate speed form, and the filter cake layer is more complete, improves the accuracy that detects the active carbon filtration rate.
Preferably, the dry sample accurately weighs 1.0g, and distilled water is added at 100mL, and the temperature of the distilled water is 25 ℃ +/-1 ℃.
By adopting the technical scheme, the amount of the dry sample is accurately weighed, and the distilled water is added, so that the formed filter cake has accurate thickness, and the filtering speed of the distilled water can be accurately measured according to the thickness of the filter cake.
Preferably, the filter cake is compacted using a compression rod to form a filter cake of the same thickness.
Through adopting above-mentioned technical scheme, mix when active carbon and distilled water and shake evenly and pour into suction filter funnel, form the filter cake through the suction filter on suction filter funnel's surface, and the filter cake probably unevenness, can flatten the compaction with the filter cake through outside pressure stick pole, and then form the filter cake that levels the thinness degree unanimity, be convenient for simultaneously detect the filtration speed.
Preferably, in S2, 100mL of distilled water is measured by using a 100mL measuring cylinder.
By adopting the technical scheme, 100mL of distilled water is accurately measured through the 100mL measuring cylinder, and the time required by calculating the filtration rate and using the distilled water of unit volume to pass through the activated carbon is the filtration rate, so that the speed measurement is more accurate.
In summary, the present application has the following beneficial effects:
1. this application is through setting up anchor clamps and sealing strip for it is inseparabler to connect between suction filtration funnel and the buchner flask, and the distilled water is difficult to run off in the gap from the junction, and the filter cake is strained futilely more easily, and whether the filter cake is strained futilely to observe the observer more easily simultaneously, and the time of record straining futilely conveniently detects filter cake filter speed.
2. This application sets up to the dull polish layer through the junction with erlenmeyer flask and suction filtration funnel, suction filtration funnel sets up to the dull polish layer with the junction of suction filtration bottle, further strengthens the compactness of junction, and the simple operation is convenient for observe the strain dry time on filter cake layer more accurate.
3. The application provides a detection method of active carbon filtration rate can conveniently detect the active carbon filtration rate, can accurately detect the filter rate of active carbon, and through observing whether the water on the active carbon layer is strained futilely, record the time of the dry water of suction filtration, and then survey the filtration rate of active carbon. The detection method has the advantages of being simple to operate and controllable in conditions.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an activated carbon filtration rate detection device in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a fixture structure for highlighting the structure in the activated carbon filtration rate detection apparatus according to an embodiment of the present disclosure;
FIG. 3 is a schematic sectional view showing the connection relationship of a locking member for highlighting in the apparatus for measuring filtration rate of activated carbon according to the embodiment of the present invention;
fig. 4 is an exploded view of an activated carbon filtration rate detection device in an embodiment of the present application.
Reference numerals: 1. a conical flask; 2. a suction filtration funnel; 3. a connecting pipe; 4. a filter flask is pumped; 5. a filter cake; 6. a first convex ring; 7. a second convex ring; 8. a clamp; 81. a clamping portion; 82. holding handle a section; 9. a seal strip; 91. an inner seal strip; 92. an outer seal strip; 10. locking the screw rod; 11. locking the nut; 12. an anti-drop nut; 13. a locking member; 131. a clamping block; 132. a T-shaped block; 133. turning block (ii) a; 14. a clamping groove; 15. a spring; 16. sanding layer; 17. a graduated scale; 18. a holding groove; 19. a bottle cap; 20. and (5) sealing rings.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses a device for detecting the filtration rate of activated carbon. Referring to fig. 1, active carbon filtration rate detection device is including being uncovered erlenmeyer flask 1 that sets up, and the uncovered department cover of erlenmeyer flask 1 is equipped with suction filtration funnel 2 little below the mouth of pipe bore is above big or small, and suction filtration funnel 2's lateral wall integrated into one piece has connecting pipe 3, and the other end of connecting pipe 3 even has the vacuum pump that is used for filtering. The fixed suction flask 4 that is uncovered setting that is provided with in suction filtration funnel 2's top through anchor clamps 8 is formed with circular shape filter cake 5 between suction flask 4 and suction filtration funnel 2, observes filter cake 5 strain dry time, and then detects the filtration rate of active carbon. The opening of the filter flask 4 is covered with a bottle cap 19 for preventing moisture in the air, and the bottom of the bottle cap 19 is provided with a sealing ring 20, so that the bottle cap 19 is connected more closely, and meanwhile, pollutants can be effectively prevented from entering the filter flask 4. Be provided with scale 17 on the periphery lateral wall of buchner flask 4, and the scale on scale 17 is more and more accurate from the top of buchner flask 4 to the bottom of buchner flask 4 for the operator can judge through watching scale 17 that filtered distilled water is strained futilely, has accurate effect, convenient observation.
Referring to fig. 1 and 2, the clamp 8 includes a clamping portion 81 and a holding portion 82, a sealing strip 9 for sealing a joint between the suction filter funnel 2 and the suction filter flask 4 is connected to an outer side of the clamping portion 81, the sealing strip 9 is made of soft rubber, the sealing strip 9 includes an inner sealing strip 91 and an outer sealing strip 92, the inner sealing strip 91 is used for sealing a portion enclosed by the clamping portion 81, and the outer sealing strip 92 is used for sealing a joint exposed to the outside. The outside at the both ends of clamping part 81 is welded and is equipped with locking screw 10, and the screw thread is provided with lock nut 11 on the locking screw 10, and the both ends cover of interior sealing strip 91 is on locking screw 10, is locked by lock nut 11 and makes interior sealing strip 91 and the both ends of clamping part 81 inconsistent difficult slip. One end of the outer sealing strip 92 is hung on the locking screw 10 located outside the locking nut 11 and is locked by the anti-falling nut 12, so that one end of the outer sealing strip 92 is fixed and is not easy to fall off.
Referring to fig. 2 and 3, a rectangular clamping groove 14 is formed in the end portion of the outer sealing strip 92, a locking piece 13 is arranged on the outer side of the locking screw 10 at one end of the clamping portion 81 in a threaded manner, the locking piece 13 comprises a rectangular clamping block 131, the clamping block 131 is matched with the clamping groove 14, one end of the clamping block 131 is in threaded connection with the locking screw 10, a rotatable T-shaped block 132 is arranged at the other end of the clamping block 131, a rectangular rotating block 133 is integrally formed on the portion, located outside the clamping block 131, of the T-shaped block 132, a spring 15 is fixed at one end, far away from the rotating block 133, of the T-shaped block 132, the abutting effect is tighter, and the rotating block 133 is not prone to rotate under the effect of the spring 15. When the joint groove 14 of the outer sealing strip 92 is sleeved on the joint block 131, the rotating block 133 is rotated to lock, so that the outer sealing strip 92 is fixed, meanwhile, the outer sealing strip 92 is not easy to slip off, the operation is convenient, the effect of tight connection is achieved, the filter cake 5 is easy to filter, and the accuracy of the detection of the filtering speed of the activated carbon is improved.
Referring to fig. 1 and 4, for further convenience connect and connect inseparabler, be provided with dull polish layer 16 in erlenmeyer flask 1 and suction filtration funnel 2's connector lug department, suction filtration funnel 2's top integrated into one piece has first bulge loop 6, suction filtration flask 4's bottom integrated into one piece has second bulge loop 7, first bulge loop 6 sets up to dull polish layer 16 with the connection face department of second bulge loop 7, make between the connector lug more inseparabler, the distilled water is difficult for oozing, has and connects inseparabler advantage. Meanwhile, the arc-shaped holding groove 18 is formed at the joint of the clamping portion 81 and the holding portion 82 of the clamp 8, and the holding portion 82 of the clamp 8 is smoothly arranged in an arc shape, so that an operator can conveniently clamp the clamp 8, and the comfortable feeling is good.
The implementation principle of the active carbon filtration rate detection device in the embodiment of the application is as follows: with the junction of 8 centre gripping first bulge loops 6 of anchor clamps 2 and the second bulge loop 7 of buchner flask 4 of suction filtration funnel, at this moment, interior sealing strip 91 tightly laminates mutually with the junction that is close to in the anchor clamps 8, manual joint groove 14 cover with exterior sealing strip 92 is on joint piece 131, it locks to rotate turning block 133, make joint groove 14 be difficult for coming off from joint piece 131, exterior sealing strip 92 laminates with the junction that exposes outside promptly, more inseparable effect has to be connected this moment, make distilled water be difficult for oozing, filter cake 5 is strained futilely more easily, conveniently observe the strain dry time of filter cake 5, the record time is accurate, be favorable to improving the accuracy that the filtration rate detected.
Examples
Example 1: a method for detecting the filtration rate of activated carbon comprises the following steps:
s1, accurately weighing 1.0g of activated carbon of a dry sample in a 150mL triangular flask, adding 100mL of distilled water, wherein the temperature of the distilled water is 25 +/-1 ℃, shaking uniformly, pouring into a suction filtration funnel, turning on a power supply to carry out suction filtration to form a filter cake, and turning off the power supply;
s2, measuring 100mL of distilled water by using a 100mL measuring cylinder, pouring the distilled water into a suction flask along the wall of the suction flask, starting a power supply to carry out suction filtration, and starting timing;
and S3, from top to bottom, after the water on the carbon layer is dried, timing is finished, the power supply is turned off, time is recorded, the operation is repeated for 3 times, and the average value of the filtration rate is taken, so that the filtration rate of the activated carbon can be detected.
The filter is characterized in that medium-speed qualitative filter paper is placed on the suction filter funnel, and the filter cake is compacted by a pressing rod to form a filter cake with the same thickness.
Example 2: the difference between the method for detecting the filtration rate of the activated carbon and the embodiment 1 is that in S1, 1.2g of the activated carbon of a dry sample is accurately weighed in a 150mL triangular flask, 100mL of distilled water is added, the temperature of the distilled water is 25 +/-1 ℃, the distilled water is uniformly shaken and poured into a suction filtration funnel, a power supply is turned on to carry out suction filtration to form a filter cake, and the power supply is turned off.
Example 3: a method for detecting the filtration rate of activated carbon is different from that in the embodiment 1, in S1, 1.5g of activated carbon of a dry sample is accurately weighed in a 150mL triangular flask, 100mL of distilled water is added, the temperature of the distilled water is 25 +/-1 ℃, the mixture is uniformly shaken and then poured into a suction filtration funnel, a power supply is turned on to carry out suction filtration to form a filter cake, and the power supply is turned off.
Example 4: a method for detecting the filtration rate of activated carbon is different from that of embodiment 1 in that 120mL of distilled water is measured by a 150mL measuring cylinder in S2, the distilled water is poured into a filtration bottle along the wall of the filtration bottle, the power supply is turned on for filtration, and meanwhile, timing is started.
Example 5: a method for detecting the filtration rate of activated carbon is different from that of embodiment 1 in that 150mL of distilled water is measured by a 150mL measuring cylinder in S2, the distilled water is poured into a filtration bottle along the wall of the filtration bottle, the power supply is turned on for filtration, and timing is started at the same time.
Example 6: a method for detecting the filtration rate of activated carbon is different from embodiment 1 in that in S3, after water on a carbon layer is dried from top to bottom, timing is finished, a power supply is turned off, time is recorded, the operation is repeated for 4 times, data deviation is greatly omitted, and then the average value of the filtration rate is taken, so that the filtration rate of the activated carbon can be detected.
Example 7: a method for detecting the filtration rate of activated carbon is different from embodiment 1 in that in S3, after water on a carbon layer is dried from top to bottom, timing is finished, a power supply is turned off, time is recorded, the operation is repeated for 5 times, data deviation is greatly omitted, and the filtration rate of the activated carbon can be detected by taking the average value of the filtration rates.
Comparative example
Comparative example 1: the difference between the method for detecting the filtration rate of the activated carbon and the embodiment 1 is that in S1, 3.0g of the activated carbon of a dry sample is accurately weighed in a 150mL triangular flask, 100mL of distilled water is added, the temperature of the distilled water is 25 +/-1 ℃, the distilled water is uniformly shaken and poured into a suction filtration funnel, a power supply is turned on to carry out suction filtration to form a filter cake, and the power supply is turned off.
Comparative example 2: a method for detecting the filtration rate of activated carbon is different from that in the embodiment 1, in S2, 50mL of distilled water is measured by a 100mL measuring cylinder, poured into a filtration bottle along the wall of the filtration bottle, and is filtered by turning on a power supply, and timing is started at the same time.
Comparative example 3: a method for detecting the filtration rate of activated carbon is different from that of embodiment 1 in that 250mL of distilled water is measured by a 250mL measuring cylinder in S2, the distilled water is poured into a filtration bottle along the wall of the filtration bottle, the power supply is turned on for filtration, and meanwhile, timing is started.
Comparative example 4: the difference between the method for detecting the filtration rate of the activated carbon and the method in the example 1 is that a filter cake is directly formed on the suction filter funnel.
Comparative example 5: an activated carbon filtration rate test method is different from the method in example 1 in that the filter cake layer is directly compacted into a filter cake without using a pressing rod.
Comparative example 6: a method for detecting the filtration rate of activated carbon is different from embodiment 1 in that in S3, after water on a carbon layer is dried from top to bottom, timing is finished, a power supply is turned off, time is recorded, and repeated tests are not carried out, namely the filtration rate of the activated carbon is detected.
Performance test
For the activated carbon filtration rate measuring methods of examples 1 to 7 and comparative examples 1 to 6, the time for which the filter cake was drained was measured using a stopwatch timer, the time was recorded, the filtration time per unit volume of distilled water was taken as the filtration rate of the activated carbon, and the measurement results were recorded in the following table 1.
The method for calculating the filtration rate comprises the following steps:
activated carbon filtration rate = (distilled water filtration time/volume of distilled water) × 10 -3 s/mL，The results of the same group calculation were averaged, and the recorded distilled water filtration time was found to be more variable, and this group of values was discarded and then averaged.
As can be seen from the test data in table 1: the detection methods of examples 1 to 7 were carried out to detect the filtration rate of activated carbon, and the filtration rate of activated carbon was measured after the detection of the filtration rate and was 14X 10 on average -3 s/mL, which shows that the method for measuring the filtration rate of activated carbon applied in the examples of the present application has the advantage of accurately measuring the filtration rate of activated carbon, wherein examples 2 and 6 are preferred examples.
As seen from the combination of example 1 and comparative example 1 and Table 1, the filtration rate of activated carbon measured in the detection using the method of example 1 was 12.1X 10 -3 s/mL, and measured using the method of comparative example 1, the thicker the cake formed, the lower the filtration rate of the activated carbon relative to the cake formed in example 1, when the amount of activated carbon was weighed to 3.0 g.
Combining examples 1, 4 and 5 and comparative example 2, and combining table 1, it can be seen that the filtration rate of activated carbon is more accurate when 100-150mL of distilled water is measured by using the measuring cylinder.
Combining examples 1, 4 and 5 and comparative example 3, and combining table 1, it can be seen that the filtration rate of activated carbon is more accurate when 100-150mL of distilled water is measured by using the measuring cylinder.
By combining the example 1 and the comparative example 4 and combining the table 1, the intermediate-speed qualitative filter paper is placed on the suction filter funnel, so that the activated carbon forms a filter cake on the qualitative filter paper of the suction filter funnel, the measured activated carbon filtration rate is accurate, and the activated carbon is not easy to block in the suction filter funnel.
Combining example 1 and comparative example 5, and table 1, it can be seen that the filter cake was compacted using a compression rod to form a filter cake of the same thickness, in which case the measured filtration rate of activated carbon was more accurate.
Combining examples 1, 6 and 7 and comparative example 6, and combining table 1, it is seen that by recording multiple times of filtering time of activated carbon, more accurate time can be obtained, and error caused by single recording is reduced, so that the filtering speed of activated carbon can be detected more accurately, wherein, repeating operation 4 times is the optimal example.
TABLE 1 measurement of filtration Rate
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (10)
1. The active carbon filtering speed detection device is characterized by comprising a conical flask (1) which is in an open arrangement, wherein a filtering funnel (2) is arranged at the top end of the conical flask (1), a connecting pipe (3) is communicated with the peripheral side wall of the filtering funnel (2), an open filtering flask (4) is arranged at the top end of the filtering funnel (2), a filter cake (5) is arranged between the filtering funnel (2) and the filtering flask (4), a clamp (8) is arranged at the top end of the filtering funnel (2) and the bottom end of the filtering flask (4), the clamp (8) comprises a clamping part (81) and a holding part (82), a sealing strip (9) used for sealing the joint of the filtering funnel (2) and the filtering flask (4) is connected to the outer side of the clamping part (81), the sealing strip (9) is made of soft rubber, the sealing strip (9) comprises an inner sealing strip (91) and an outer sealing strip (92), the inner sealing strip (91) is used for sealing one part wrapped by the clamping part (81), and the joint exposed outside of the sealing strip (92) is used for sealing the joint exposed outside; locking screws (10) are welded on the outer sides of the two ends of the clamping part (81), locking nuts (11) are arranged on the locking screws (10) in a threaded mode, the two ends of the inner sealing strip (91) are sleeved on the locking screws (10), and the inner sealing strip (91) is locked by the locking nuts (11) to be abutted against the two ends of the clamping part (81) and not prone to sliding; one end of the outer sealing strip (92) is hung on a locking screw (10) positioned on the outer side of a locking nut (11), and is locked by an anti-falling nut (12), so that one end of the outer sealing strip (92) is fixed and is not easy to fall off; rectangular joint groove (14) have been seted up to the tip of outer sealing strip (92), the outside screw thread of locking screw (10) of clamping part (81) one end is provided with locking piece (13), locking piece (13) are including joint piece (131) that are the rectangle setting, joint piece (131) and joint groove (14) looks adaptation, the one end and the locking screw (10) threaded connection of joint piece (131), the other end of joint piece (131) is provided with rotatable T type piece (132), T type piece (132) are located the outside part integrated into one piece of joint piece (131) and have and are rectangular turning block (133), the one end that turning block (133) were kept away from in T type piece (132) is fixed with spring (15), turning block (133) are difficult for rotating under the effect of spring (15), joint groove (14) cover when outer sealing strip (92) is on joint piece (131), it locks to rotate turning block (133), make outer sealing strip (92) fixed.
2. The activated carbon filtering speed detection device according to claim 1, wherein a joint of the conical flask (1) and the suction filter funnel (2) is provided with a frosting layer (16), and a joint of the suction filter funnel (2) and the suction filter flask (4) is provided with the frosting layer (16).
3. The activated carbon filtration rate detection device according to claim 1, wherein a graduated scale (17) is arranged on the outer side wall of the body of the filter flask (4).
4. The activated carbon filtration rate detection device according to claim 1, wherein a bottle cap (19) is arranged at the top end of the filtration bottle (4), and a sealing ring (20) is arranged at the bottom of the bottle cap (19).
5. An activated carbon filtration rate detection method using the activated carbon filtration rate detection apparatus according to claim 1, comprising the steps of:
s1, preparing a dried activated carbon sample to form a filter cake;
s2, measuring distilled water by using a measuring cylinder, pouring the distilled water into a suction flask along the wall of the suction flask, starting a power supply to carry out suction filtration, and starting timing;
and S3, after the carbon layer is dried, timing is finished, the power supply is turned off, time is recorded, and the operation is repeated for 3 times, so that the filtration rate of the activated carbon can be detected.
6. The activated carbon filtration rate detection method according to claim 5, wherein the filter cake is prepared by: weighing a certain amount of active carbon of a dry sample in a triangular flask, adding distilled water, shaking uniformly, pouring into a suction filtration funnel, starting a power supply to carry out suction filtration to form a filter cake, and closing the power supply.
7. The activated carbon filtration rate detection method according to claim 5, wherein a medium-speed qualitative filter paper is placed on the suction filter funnel.
8. The method for detecting the filtration rate of the activated carbon according to claim 6, wherein in the step S1, 1.0-1.5 g and 100mL of distilled water are accurately weighed out from a dried sample, and the temperature of the distilled water is 25 ℃ ± 1 ℃.
9. The activated carbon filtration rate detection method according to claim 6, wherein the filter cake is compacted by a pressing rod to form a filter cake with the same thickness.
10. The method for detecting the filtration rate of the activated carbon according to claim 5, wherein 100 to 150mL distilled water is measured by a 150mL graduated cylinder in the S2.
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| CN114538642B (en) * | 2022-03-07 | 2023-09-15 | 广东人为环境科技有限公司 | Integrated water purification plant based on informatization |
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