Instrument for detecting adsorption performance of attapulgite product

Abstract

The invention relates to the technical field of attapulgite adsorbability detection, in particular to an attapulgite product adsorbability detection instrument, which is characterized in that a floating plate is provided with a step table which can be sleeved with a baffle ring inner ring, the step table is provided with an inclined table which is inclined towards one side far away from a water falling groove, and an overflow groove is arranged between an overflow inner cavity and the water falling groove; the device has the beneficial effects that the dynamic recovery assembly is arranged, so that a filtered solution is continuously recovered, the multiple groups of collection cups are arranged, so that the automatic division of a filtering time period is realized, the operation is simple, the operation is convenient, the efficiency is high, the cost is low, and the device is suitable for large-scale popularization and application. By utilizing the floating plate and the overflow structure, after the filtrate is collected within a period of time, the floating plate automatically blocks and overflows to the next period of time to form a continuous collection process, so that the detection efficiency and precision are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of attapulgite adsorption detection, and specifically to an instrument for detecting the adsorption performance of attapulgite products. Background Technique

[0002] Attapulgite is a kind of stone material with a microporous structure, and its adsorption performance using micropores is usually used as an adsorbent for fields such as wastewater treatment.

[0003] In order to improve the adsorption efficiency and facilitate the adjustment of the treatment process, it is necessary to detect the adsorption performance of attapulgite, including dynamic adsorption efficiency and adsorption saturation, etc. Common detection methods mostly adopt the following methods:

[0004] 1. Specific surface area and pore structure analysis: Use the BET method to measure the specific surface area of attapulgite to understand the basic parameters of its adsorption capacity. Determine the pore structure through mercury intrusion method or gas adsorption method, including pore size distribution and pore volume, to evaluate its adsorption potential for different sized molecules.

[0005] 2. Static adsorption experiment: Mix attapulgite with the target adsorbate solution, and after oscillating and balancing under certain conditions, analyze the change in the concentration of the adsorbate in the solution, and calculate the adsorption amount and adsorption rate;

[0006] 3. Adsorption kinetics experiment: Study the change of the adsorption process over time to determine the adsorption rate and adsorption mechanism.

[0007] The above detections 1 and 2 are static detections and cannot detect the adsorption rate. For the dynamic detection in detection method 3, it is necessary to collect the adsorbed solution at different time periods. Therefore, during the experiment, it is necessary to collect the filtered solution during the filtration process. Such an experimental method not only has low accuracy but also poor efficiency and is prone to large errors. Summary of the Invention

[0008] The purpose of the present invention is to provide an instrument for detecting the adsorption performance of attapulgite products to solve the problems raised in the above background technique.

[0009] To achieve the above purpose, the present invention provides the following technical solutions:

[0010] An instrument for detecting the adsorption performance of attapulgite products, including an outer frame, on which a lower frame and an upper frame are provided. An original material tank and a filter cylinder are installed on the upper frame, and a dynamic recovery component is provided on the lower frame. The original material tank is filled with a solution with a fixed ion concentration, and the filter cylinder is filled with powdery attapulgite products. The dynamic recovery component includes multiple groups of vertically distributed collection cups. Each collection cup includes a storage inner cavity for collecting the filtered solution, a water inlet trough for receiving the input solution, and an overflow inner cavity for discharging the overflow solution. A retaining ring flush with the bottom of the water inlet trough is provided on the inner wall of the storage inner cavity. A floating plate is arranged in the storage inner cavity. The outer diameter of the floating plate is larger than the inner diameter of the retaining ring. A stepped platform that can be sleeved with the inner ring of the retaining ring is provided on the floating plate. An inclined platform inclined in the direction away from the water inlet trough is provided on the stepped platform. An overflow trough is arranged between the overflow inner cavity and the water inlet trough, and the port of the overflow trough is directly opposite to the inclined surface of the inclined platform. The overflow inner cavity of the upper collection cup is connected to the water inlet trough of the lower collection cup through a downcomer.

[0011] Preferably, the water inlet trough of the collection cup at the upper end of the dynamic recovery component is directly opposite to the water outlet at the lower end of the filter cylinder. A collection box is provided on the lower frame, and the downcomer of the collection cup at the lower end of the dynamic recovery component is directly opposite to the collection box.

[0012] Preferably, double-headed sleeve frames with different sizes are sleeved on the original material tank, the filter cylinder, and the collection cup. One end of the double-headed sleeve frame is provided with a first collar fixedly sleeved on the outer wall of one of the original material tank, the filter cylinder, and the collection cup, and the other end is provided with a second collar slidably sleeved on the lower frame or the upper frame. A locking bolt is threadedly installed on the second collar.

[0013] Preferably, a control valve is arranged between the filter cylinder and the original material tank. The input end of the control valve is communicated with the inner cavity of the original material tank. An upper cover is provided at the upper end of the filter cylinder. An inner wire frame and an outer wire frame sleeved with each other are fixed in the inner cavity of the filter cylinder. The output end of the control valve is communicated with the middle of the inner cavity of the inner wire frame through the upper cover. The attapulgite products are arranged in the circular gap between the inner wire frame and the outer wire frame. A circular sealing plug is provided on the upper cover, and the sealing plug is pressed on the upper end of the attapulgite products. A circular water drainage gap is formed between the outer wire frame and the inner wall of the filter cylinder, and the lower end of the water drainage gap is communicated with the water outlet.

[0014] Preferably, an installation platform is fixedly installed in the inner cavity of the filter cylinder. A fixing rod is vertically arranged upward on the installation platform. The bottoms of the inner wire frame and the outer wire frame are sleeved on the fixing rod and locked by nuts threadedly rotated on the fixing rod. A through hole directly opposite to the water drainage gap is provided through the installation platform.

[0015] Preferably, a square floating rod is vertically upwardly arranged in the middle of the inclined surface of the inclined table. An upper plate is fixedly arranged at the upper end of the collecting cup. A square hole through which the floating rod is slidably sleeved is arranged through the upper plate. A scale is arranged on the floating rod. A drain valve communicating with the storage cavity is arranged at the lower end of the collecting cup.

[0016] Preferably, a through groove penetrating the floating plate is arranged on the stepped table. A plurality of groups of grooves are arranged on the lower end surface of the floating plate. The thickness of the stepped table is the same as that of the retaining ring. The outer diameter of the stepped table is equal to the inner diameter of the retaining ring. A sealing ring is arranged at the upper end of the floating plate. A ring groove matched and sleeved with the sealing ring is arranged on the lower end surface of the retaining ring.

[0017] Preferably, an airbag ring fitting the inner wall of the storage cavity is fixedly arranged on the outer edge of the lower end of the floating plate. Rubber rings are arranged on both the inner and outer sides of the airbag ring. A hollow annular airbag is arranged in the circular gap between the pair of rubber rings. The inner rubber ring is fixed on the floating plate, and the outer rubber ring fits the inner wall of the storage cavity. An adjusting assembly for adjusting the internal pressure of the airbag ring is arranged in the floating plate.

[0018] Preferably, the adjusting assembly includes a hollow balloon and a T-shaped inserting rod. A circular installation groove is arranged on the floating plate. The sealing ring is fixed at the upper end of the installation groove. A pair of symmetrically distributed hollow balloons are arranged at the lower end of the sealing ring. The hollow balloons are communicated with the airbag ring through a communicating flow channel. An expansion and contraction groove vertically communicating with the installation groove is arranged on the arc outer wall of the floating plate. The T-shaped inserting rod is elastically installed in the expansion and contraction groove in an expandable and contractible manner. A top ball facing the hollow balloon is arranged at the end of the T-shaped inserting rod.

[0019] Preferably, a screw hole facing the expansion and contraction groove is arranged on the outer wall of the collecting cup. A pressing screw is rotatably installed in the screw hole in a threaded manner. The end of the pressing screw is pressed against one end of the T-shaped inserting rod. A spring is sleeved on the T-shaped inserting rod.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] By arranging a dynamic recovery assembly, the present invention realizes continuous recovery of the filtered solution. By arranging a plurality of groups of collecting cups, the present invention realizes automatic division of the filtration time period. By using the floating plate and the overflow structure, after the filtered liquid is collected within a period of time, the floating plate automatically seals and overflows to the next time period, forming a continuous collection process, thereby greatly improving the detection efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the present invention;

[0023] Figure 2 is a schematic structural diagram of the filter cylinder of the present invention;

[0024] Figure 3 is a schematic structural diagram of the collecting cup of the present invention;

[0025] Figure 4 For Figure 3 The enlarged view of the structure at position A in

[0026] Figure 5 The semi-sectional structure schematic diagram of the filter cartridge of the present invention

[0027] Figure 6 The semi-sectional three-dimensional structure schematic diagram of the collection cup of the present invention;

[0028] Figure 7 The three-dimensional structure schematic diagram of the collection cup of the present invention;

[0029] Figure 8 The three-dimensional structure schematic diagram of the floating plate of the present invention;

[0030] Figure 9 The bottom structure schematic diagram of the floating plate of the present invention.

[0031] In the figure: 1, outer frame; 2, lower frame; 3, collection box; 4, upper frame; 5, double-headed sleeve frame; 6, locking bolt; 7, raw material tank; 8, filter cartridge; 9, control valve; 10, collection cup; 11, upper cover; 12, sealing plug; 13, inner wire frame; 14, outer wire frame; 15, attapulgite product; 16, water falling gap; 17, installation platform; 18, through hole; 19, fixing rod; 20, water outlet; 21, retaining ring; 22, upper plate; 23, floating plate; 24, floating rod; 25, water falling tank; 26, overflow inner cavity; 27, downcomer; 28, T-shaped insertion rod; 29, drain valve; 30, extrusion screw; 31, overflow groove; 32, screw hole; 33, groove; 34, airbag ring; 35, sealing ring; 36, communication flow channel; 37, spring; 38, telescopic groove; 39, hollow balloon; 40, stepped platform; 41, through slot; 42, inclined platform. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Please refer to Figures 1 to 9 , the present invention provides a technical solution:

[0034] Embodiment 1: An instrument for detecting the adsorption performance of attapulgite products, including an outer frame 1. A lower frame 2 and an upper frame 4 are arranged on the outer frame 1. A raw material tank 7 and a filter cylinder 8 are installed on the upper frame 4. A dynamic recovery component is arranged on the lower frame 2. Double-headed sleeve frames 5 with different sizes are sleeved on the raw material tank 7, the filter cylinder 8, and the collection cup 10. One end of the double-headed sleeve frame 5 is provided with a first collar fixedly sleeved on the outer wall of one of the raw material tank 7, the filter cylinder 8, and the collection cup 10, and the other end is provided with a second collar slidably sleeved on the lower frame 2 or the upper frame 4. A locking bolt 6 is installed on the second collar by threading.

[0035] The convenient height adjustment of the detection device is realized by setting the double-headed sleeve frame 5, and the height is fixed by using the locking bolt 6, so as to facilitate the assembly of the device.

[0036] The raw material tank 7 is filled with a solution with a fixed ion concentration, and the filter cylinder 8 is filled with powdery attapulgite products 15. The dynamic recovery component includes multiple groups of vertically distributed collection cups 10. The collection cup 10 includes a storage inner cavity for collecting the filtered solution, a water inlet groove 25 for receiving the input solution, and an overflow inner cavity 26 for discharging the overflow solution.

[0037] The solution in the raw material tank 7 is adsorbed and filtered by the attapulgite products 15 inside the filter cylinder 8, and the filtered solution falls on the dynamic recovery component.

[0038] A retaining ring 21 flush with the bottom of the water inlet groove 25 is arranged on the inner wall of the storage inner cavity. A floating plate 23 is arranged in the storage inner cavity. The outer diameter of the floating plate 23 is larger than the inner diameter of the retaining ring 21. A stepped platform 40 that can be sleeved with the inner ring of the retaining ring 21 is arranged on the floating plate 23.

[0039] By setting the floating plate 23 and the stepped platform 40, the storage inner cavity is automatically blocked when the liquid level rises.

[0040] An inclined platform 42 inclined in the direction away from the water inlet groove 25 is arranged on the stepped platform 40. An overflow groove 31 is arranged between the overflow inner cavity 26 and the water inlet groove 25. The port of the overflow groove 31 is directly opposite to the inclined surface of the inclined platform 42. The overflow inner cavity 26 on the upper collection cup 10 is communicated with the water inlet groove 25 of the lower collection cup 10 through a downcomer 27.

[0041] By setting the inclined platform 42 to block the flow of the solution towards the storage inner cavity side, the solution flows into the overflow inner cavity 26 along the overflow groove 31.

[0042] The water inlet groove 25 on the upper collection cup 10 of the dynamic recovery component is directly opposite to the water outlet 20 at the lower end of the filter cylinder 8. A collection box 3 is arranged on the lower frame 2. The downcomer 27 on the lower collection cup 10 of the dynamic recovery component is directly opposite to the collection box 3.

[0043] By setting the collection box 3, it is convenient to recycle the excess solution.

[0044] Working principle: In order to study the adsorption efficiency and saturation of attapulgite products, it is necessary to continuously detect the concentration of the filtered solution before adsorption saturation, and then fit the adsorption rate curve based on the continuous detection.

[0045] By setting multiple groups of collection cups 10, the time period from the start of filtration to saturation is divided into multiple small time periods. Then, the solution in the raw material tank 7 is adsorbed and filtered through the attapulgite product 15 inside the filter cylinder 8. The filtered solution first falls into the water receiving groove 25 of the uppermost collection cup 10. Since the overflow groove 31 is higher than the bottom of the water receiving groove 25, there is no water in the storage cavity at this time, and the floating plate falls to the lower end of the storage cavity. The filtered solution falls along the water receiving groove 25 to the middle of the retaining ring 21 and then into the storage cavity. The solution accumulates at the lower end of the floating plate 23, forming buoyancy, which causes the floating plate 23 to rise with the liquid level.

[0046] When the floating plate 23 rises to the lower end of the retaining ring 21, the stepped platform 40 is sleeved on the retaining ring 21 to form a seal, preventing the water from falling into the storage cavity. The water accumulates in the water receiving groove 25 and the water level rises. When it rises to the height of the overflow groove 31, it overflows to the side of the water falling cavity 26, and at this time, the water level is lower than the highest point of the inclined platform 42, so it will not overflow to the side of the stepped platform 40.

[0047] The filtered solution fills multiple groups of collection cups 10 in sequence and overflows downward, thus forming the filtered solutions collected in multiple consecutive time periods. Then, the concentration of the filtered solution in each collection cup 10 is detected, and based on the detected concentration data, the adsorption rate of the attapulgite product 15 is fitted.

[0048] When it is detected that the concentration of the solution in a certain collection cup 10 is the same as the concentration of the solution in the raw material tank 7, it indicates adsorption saturation.

[0049] Embodiment 2: On the basis of Embodiment 1, a control valve 9 is provided between the filter cylinder 8 and the raw material tank 7. The input end of the control valve 9 is communicated with the inner cavity of the raw material tank 7. The upper end of the filter cylinder 8 is provided with an upper cover 11. Inside the inner cavity of the filter cylinder 8, an inner wire frame 13 and an outer wire frame 14 are fixedly sleeved with each other. The output end of the control valve 9 is communicated with the middle of the inner cavity of the inner wire frame 13 through the upper cover 11. The attapulgite product 15 is arranged in the circular gap between the inner wire frame 13 and the outer wire frame 14. A circular sealing plug 12 is arranged on the upper cover 11, and the sealing plug 12 is pressed on the upper end of the attapulgite product 15. A circular water falling gap 16 is formed between the outer wire frame 14 and the inner wall of the filter cylinder 8, and the lower end of the water falling gap 16 is communicated with the water outlet 20.

[0050] By setting the inner wire frame 13 and the outer wire frame 14, the attapulgite product 15 is limited, ensuring that the solution in the raw material tank 7 completely passes through the attapulgite product 15, ensuring sufficient contact, and using the sealing plug 12 to prevent overflow.

[0051] An installation platform 17 is fixedly installed in the inner cavity of the filter cartridge 8. A fixing rod 19 is vertically arranged upward on the installation platform 17. The bottoms of the inner wire frame 13 and the outer wire frame 14 are both sleeved on the fixing rod 19 and are locked by nuts that are rotationally installed on the fixing rod 19 through threads. A through hole 18 facing the water falling gap 16 is arranged through the installation platform 17.

[0052] Through the cooperation of the installation platform 17 and the fixing rod 19, the fixed installation of the inner wire frame 13 and the outer wire frame 14 is realized.

[0053] Embodiment 3: On the basis of Embodiment 2, in order to improve the liquid level stability of the storage inner cavity and the sealing performance of the floating plate 23; a square floating rod 24 is vertically arranged upward in the middle of the inclined surface of the inclined table 42. An upper plate 22 is fixedly arranged at the upper end of the collecting cup 10. A square hole that is slidably sleeved with the floating rod 24 is arranged through the upper plate 22. A scale is arranged on the floating rod 24. A drain valve 29 communicating with the storage inner cavity is arranged at the lower end of the collecting cup 10.

[0054] By arranging the floating rod 24 with a scale, it is convenient to clearly reflect the height of the floating plate 23, that is, to reflect the liquid level height of the storage inner cavity, and to judge whether the storage inner cavity is full. By arranging the drain valve 29, it is convenient to take materials conveniently.

[0055] A through groove 41 penetrating the floating plate 23 is arranged on the stepped table 40. Multiple groups of grooves 33 are arranged on the lower end surface of the floating plate 23. The thickness of the stepped table 40 is the same as the thickness of the retaining ring 21. The outer diameter of the stepped table 40 is equal to the inner diameter of the retaining ring 21. A sealing ring 35 is arranged at the upper end of the floating plate 23. A ring groove that is cooperatively sleeved with the sealing ring 35 is arranged on the lower end surface of the retaining ring 21.

[0056] Through the arrangement of the sealing ring 35, the sealing fit between the floating plate 23 and the retaining ring 21 is realized. Through the cooperation of the through groove 41 and the grooves 33, enough cavities are reserved at the lower end of the floating plate 23, so that the solution falls along the through groove 41 to the grooves 33, and a liquid surface is formed under the floating plate 23 to provide enough buoyancy for the floating plate 23.

[0057] An airbag ring 34 that fits against the inner wall of the storage cavity is fixedly arranged at the outer edge of the lower end of the floating plate 23. Rubber rings are arranged on both the inner and outer sides of the airbag ring 34. A hollow annular airbag is arranged in the circular ring gap between the pair of rubber rings. The inner rubber ring is fixed on the floating plate 23, and the outer rubber ring fits against the inner wall of the storage cavity. An adjusting component for adjusting the internal pressure of the airbag ring 34 is arranged in the floating plate 23; the adjusting component includes a hollow balloon 39 and a T-shaped insertion rod 28. A circular installation groove is arranged on the floating plate 23. A sealing ring 35 is fixed at the upper end of the installation groove. A pair of symmetrically distributed hollow balloons 39 are arranged at the lower end of the sealing ring 35. The hollow balloons 39 are communicated with the airbag ring 34 through a communication flow channel 36. An expansion slot 38 vertically communicating with the installation groove is arranged on the arc outer wall of the floating plate 23. A T-shaped insertion rod 28 is elastically and telescopically installed in the expansion slot 38. A top ball facing the hollow balloon 39 is arranged at the end of the T-shaped insertion rod 28; a screw hole 32 facing the expansion slot 38 is arranged on the outer wall of the collection cup 10. A pressing screw 30 is rotatably installed in the screw hole 32 by threading. The end of the pressing screw 30 is pressed against one end of the T-shaped insertion rod 28. A spring 37 is sleeved on the T-shaped insertion rod 28.

[0058] When the floating plate 23 fits against the retaining ring 21, by rotating the pressing screw 30 in the screw hole 32 in a threaded manner, the pressing screw 30 is inserted into the expansion slot 38, so as to laterally fix the height of the floating plate 23 and prevent the floating plate 23 from shaking;

[0059] At the same time, during the insertion process of the pressing screw 30, the purpose of pressing the T-shaped insertion rod 28 is achieved, so that the T-shaped insertion rod 28 slides horizontally and presses the spring 37. The end of the T-shaped insertion rod 28 is pressed against the hollow balloon 39, causing the hollow balloon 39 to deform. The air flow inside it enters the airbag ring 34 along the communication flow channel 36, causing the airbag ring 34 to expand and tightly fit against the inner wall of the storage cavity to form an annular seal. At this time, the storage cavity is completely isolated from the upper water inlet tank 25. Thus, while filtering the falling water, the filtered liquid in the storage cavity that has been filled is discharged through the drain valve 29. At this time, the floating plate 23 does not drop, and the discharged water flow can be subjected to concentration detection without waiting until the complete filtration is finished, thereby improving the detection efficiency.

[0060] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An instrument for detecting the adsorption performance of attapulgite products, comprising an outer frame (1), wherein a lower frame (2) and an upper frame (4) are arranged on the outer frame (1), and the characteristics are as follows: A raw material tank (7) and a filter cartridge (8) are installed on the upper rack (4). A dynamic recovery component is arranged on the lower rack (2). The raw material tank (7) is filled with a solution having a fixed ion concentration. The filter cartridge (8) is filled with powdery attapulgite products (15). The dynamic recovery component includes multiple groups of vertically distributed collection cups (10). The collection cup (10) includes a storage inner cavity for collecting the filtered solution, a water inlet trough (25) for receiving the input solution, and an overflow inner cavity (26) for discharging the overflow solution. A retaining ring (21) flush with the bottom of the water inlet trough (25) is arranged on the inner wall of the storage inner cavity. A floating plate (23) is arranged in the storage inner cavity. The outer diameter of the floating plate (23) is larger than the inner diameter of the retaining ring (21). A stepped platform (40) that can be sleeved with the inner ring of the retaining ring (21) is arranged on the floating plate (23). An inclined platform (42) inclined in the direction away from the water inlet trough (25) is arranged on the stepped platform (40). An overflow trough (31) is arranged between the overflow inner cavity (26) and the water inlet trough (25). The port of the overflow trough (31) faces the inclined surface of the inclined platform (42). The overflow inner cavity (26) on the upper collection cup (10) is communicated with the water inlet trough (25) of the lower collection cup (10) through a downcomer (27).

2. The adsorption performance detection instrument for attapulgite products according to claim 1, characterized in that: The water inlet trough (25) on the collection cup (10) at the upper end of the dynamic recovery component faces the water outlet (20) at the lower end of the filter cartridge (8). A collection box (3) is arranged on the lower rack (2). The downcomer (27) on the collection cup (10) at the lower end of the dynamic recovery component faces the collection box (3).

3. The adsorption performance detection instrument for attapulgite products according to claim 2, characterized in that: Double-headed sleeve frames (5) with different sizes are sleeved on the raw material tank (7), the filter cartridge (8), and the collection cup (10). One end of the double-headed sleeve frame (5) is provided with a first collar fixedly sleeved with the outer wall of one of the raw material tank (7), the filter cartridge (8), and the collection cup (10). The other end is provided with a second collar slidably sleeved with the lower rack (2) or the upper rack (4). A locking bolt (6) is threadedly installed on the second collar.

4. The adsorption performance detection instrument for attapulgite products according to claim 3, characterized in that: A control valve (9) is arranged between the filter cartridge (8) and the raw material tank (7). The input end of the control valve (9) is communicated with the inner cavity of the raw material tank (7). An upper cover (11) is arranged at the upper end of the filter cartridge (8). An inner wire frame (13) and an outer wire frame (14) sleeved with each other are fixed in the inner cavity of the filter cartridge (8). The output end of the control valve (9) is communicated with the middle of the inner cavity of the inner wire frame (13) through the upper cover (11). The attapulgite products (15) are arranged in the circular ring gap between the inner wire frame (13) and the outer wire frame (14). A circular sealing plug (12) is arranged on the upper cover (11). The sealing plug (12) is pressed on the upper end of the attapulgite products (15). A circular water falling gap (16) is formed between the outer wire frame (14) and the inner wall of the filter cartridge (8). The lower end of the water falling gap (16) is communicated with the water outlet (20).

5. The adsorption performance detection instrument for attapulgite products according to claim 4, characterized in that: An installation platform (17) is fixedly installed in the inner cavity of the filter cartridge (8). A fixing rod (19) is vertically arranged upward on the installation platform (17). The bottoms of the inner wire frame (13) and the outer wire frame (14) are both sleeved on the fixing rod (19) and are locked by nuts rotatably installed on the fixing rod (19) through threads. A through hole (18) facing the water falling gap (16) is arranged through the installation platform (17).

6. The adsorption performance detection instrument for attapulgite products according to claim 1, characterized in that: A square floating rod (24) is vertically arranged upward in the middle of the inclined surface of the inclined table (42). An upper plate (22) is fixedly arranged at the upper end of the collecting cup (10). A square hole for slidably sleeving the floating rod (24) is arranged through the upper plate (22). A scale is arranged on the floating rod (24). A drain valve (29) communicating with the storage inner cavity is arranged at the lower end of the collecting cup (10).

7. An instrument for detecting the adsorption performance of attapulgite products according to claim 6, characterized in that: A through groove (41) penetrating the floating plate (23) is arranged on the stepped table (40). A plurality of groups of grooves (33) are arranged on the lower end surface of the floating plate (23). The thickness of the stepped table (40) is the same as the thickness of the retaining ring (21). The outer diameter of the stepped table (40) is equal to the inner diameter of the retaining ring (21). The inner diameter of the upper end of the storage inner cavity is equal to the outer diameter of the stepped table (40). A sealing ring (35) is arranged at the upper end of the floating plate (23). A ring groove for fitting and sleeving with the sealing ring (35) is arranged on the lower end surface of the retaining ring (21).

8. An instrument for detecting the adsorption performance of an attapulgite product according to claim 7, characterized in that: An airbag ring (34) fitting with the inner wall of the storage inner cavity is fixedly arranged on the outer edge of the lower end of the floating plate (23). Rubber rings are arranged on both the inner and outer sides of the airbag ring (34). A hollow annular airbag is arranged in the circular gap between a pair of rubber rings. The inner rubber ring is fixed on the floating plate (23), and the outer rubber ring fits with the inner wall of the storage inner cavity. An adjusting component for adjusting the internal pressure of the airbag ring (34) is arranged in the floating plate (23).

9. The adsorption performance detection instrument for attapulgite products according to claim 8, characterized in that: The adjusting component includes a hollow balloon (39) and a T-shaped insertion rod (28). A circular installation groove is arranged on the floating plate (23). The sealing ring (35) is fixed at the upper end of the installation groove. A pair of symmetrically distributed hollow balloons (39) are arranged at the lower end of the sealing ring (35). The hollow balloons (39) are communicated with the airbag ring (34) through a communication flow channel (36). A telescopic groove (38) vertically communicating with the installation groove is arranged on the arc outer wall of the floating plate (23). The T-shaped insertion rod (28) is elastically telescopically installed in the telescopic groove (38). A top ball facing the hollow balloon (39) is arranged at the end of the T-shaped insertion rod (28).

10. An instrument for detecting the adsorption performance of an attapulgite product according to claim 9, characterized in that: A screw hole (32) facing the telescopic groove (38) is arranged on the outer wall of the collecting cup (10). An extrusion screw (30) is rotatably installed in the screw hole (32) through threads. The end of the extrusion screw (30) is pressed against one end of the T-shaped insertion rod (28). A spring (37) is sleeved on the T-shaped insertion rod (28).

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