Freeness tester

Abstract

The freeness tester comprises a bottom plate, a supporting rod is arranged on the bottom plate, a water filtering chamber is arranged on the supporting rod, a sieve plate is arranged in the water filtering chamber, a funnel is arranged below the water filtering chamber, and a side pipe and a straight pipe are arranged at the lower part of the funnel; a liquid adding frame is arranged at the upper end of the supporting rod, the liquid adding frame is rotationally connected with a liquid adding barrel, the liquid adding barrel is connected with a rotating mechanism, and the liquid adding barrel is located above the water filtering chamber. According to the utility model, automatic water adding, automatic stirring and automatic pouring of liquid into the water filtering chamber are realized, the whole operation process can be completed without excessive manual participation, and the high precision, the high efficiency and the usability of the tester are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of analytical material equipment, in particular to a freeness tester. Background Art

[0002] The freeness tester is an indispensable measuring instrument in pulp and paper making. It is used to determine the drainage rate of water suspensions of various pulps and reflect the condition of fibers after beating or refining. It plays an important role in the specification of papermaking process and production control.

[0003] Currently used freeness testers generally rely on manual addition of liquid into the filter chamber. Specifically, the operator uses a graduated cylinder to measure a certain volume of sample suspension, then stirs the suspension with one hand while pouring it into the filter chamber with the other. Manual addition of liquid can introduce errors due to uncontrollable factors (such as tilted vision and hand shaking), affecting the final freeness test results. Furthermore, different operators may obtain different freeness results. This is a shortcoming of the existing technology. Utility Model Content

[0004] The purpose of the present invention is to solve the problems raised in the above background technology, and then proposes a freeness tester.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a freeness tester, including a base plate, a support rod is provided on the base plate, the support rod is provided with a water filter chamber, a sieve plate is provided in the water filter chamber, a funnel is provided below the water filter chamber, and a side pipe and a straight pipe are provided at the lower part of the funnel; a liquid adding rack is provided at the upper end of the support rod, the liquid adding rack is rotatably connected to a liquid adding bucket, the liquid adding bucket is connected to a rotating mechanism, and the liquid adding bucket is located above the water filter chamber.

[0006] A further improvement of the present invention is that the liquid adding rack is fixed to a first sleeve, the first sleeve is sleeved on the outside of the support rod, and a first locking screw is provided on the first sleeve to lock the position of the first sleeve.

[0007] A further improvement of the present invention is that the liquid adding rack includes a "first L-shaped plate" and a "second L-shaped plate" arranged opposite to each other, and the inner sides of the "first L-shaped plate" and the "second L-shaped plate" are respectively rotatably provided with a first rotating shaft and a second rotating shaft, and the first rotating shaft and the second rotating shaft are both fixedly connected to the liquid adding barrel.

[0008] A further improvement of the present invention is that the rotating mechanism adopts a rotating motor, and the output shaft of the rotating motor is connected to the first rotating shaft.

[0009] A further improvement of the present invention is that a cover is provided on the top of the liquid adding barrel, a stirring motor is mounted on the cover, an output shaft of the stirring motor is connected to a stirring rod, and the stirring rod is located in the liquid adding barrel.

[0010] A further improvement of the present invention is that a water inlet is provided on the cover body, the water inlet is communicated with a water adding pipe, and an electromagnetic control valve is provided on the water adding pipe.

[0011] A further improvement of the present invention is that the water filter chamber is fixed to the second sleeve through a connecting rod, the second sleeve is sleeved on the outside of the support rod, and a second locking screw is provided on the second sleeve to fix the position of the second sleeve.

[0012] A further improvement of the present invention is that the liquid adding barrel is provided with a scale.

[0013] The beneficial effects of the present invention are as follows: the present invention realizes automatic water addition, automatic stirring and automatic pouring of liquid into the water filter chamber; the entire operation process can be completed without excessive human involvement, thereby improving the high precision, high efficiency and ease of use of the tester. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of a specific embodiment of the utility model;

[0015] Figure 2 This is a structural diagram showing the positional relationship between the rotating motor, the liquid adding barrel and the liquid adding bracket of the utility model.

[0016] In the figure, 1 is the bottom plate, 2 is the support rod, 3 is the water filter chamber, 4 is the funnel, 5 is the side pipe, 6 is the straight pipe, 7 is the liquid adding rack, 71 is the first L-shaped plate, 72 is the second L-shaped plate, 73 is the first rotating shaft, 74 is the second rotating shaft, 8 is the liquid adding barrel, 81 is the cover body, 9 is the first sleeve, 10 is the first locking screw, 11 is the rotating motor, 12 is the electromagnetic control valve, 13 is the water adding pipe, 14 is the stirring motor, 15 is the connecting rod, 16 is the second sleeve, and 17 is the second locking screw. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. The present invention is further described in conjunction with the drawings and embodiments:

[0018] like Figure 1-2The figure shows a freeness tester comprising a base plate 1, a support rod 2 mounted on the base plate 1, providing a stable support base for the entire tester. The support rod 2 houses a water filtration chamber 3 for filtering samples. A sieve plate (not shown) is located within the chamber 3 to ensure uniform and efficient filtration. A funnel 4 is located below the chamber 3, with a side pipe 5 and a straight pipe 6 located below the funnel 4 to facilitate liquid drainage and collection.

[0019] In the present invention, a liquid adding frame 7 is provided at the upper end of the support rod 2, and the liquid adding frame 7 is rotatably connected to a liquid adding bucket 8, which is connected to a rotating mechanism and is located above the water filtering chamber 3. The present invention realizes the automatic liquid adding process by driving the rotation of the liquid adding bucket 8 through the rotating mechanism.

[0020] At the same time, a scale is provided on the liquid adding barrel 8 so that the operator can intuitively grasp the amount of liquid added, further improving the accuracy of the test.

[0021] Furthermore, the liquid adding rack 7 is fixed to a first sleeve 9, which is sleeved onto the outside of the support rod 2. A first locking screw 10 is provided on the first sleeve 9 to lock the position of the first sleeve 9. In the present invention, the first sleeve 9 can slide up and down along the support rod 2 and can also rotate on the support rod 2 (to avoid interfering with the opening and closing of the top cover of the water filter chamber 3). After adjusting the position, the first locking screw 10 is used to secure the liquid adding rack 7, ensuring its stability during testing.

[0022] Furthermore, the specific structure of the liquid adding rack 7 is as follows: the liquid adding rack 7 includes a "first L-shaped plate 71" and a "second L-shaped plate 72" arranged relatively to each other, and the inner sides of the "first L-shaped plate 71" and the "second L-shaped plate 72" are respectively rotatably provided with a first rotating shaft 73 and a second rotating shaft 74, and the first rotating shaft 73 and the second rotating shaft 74 are both fixedly connected to the liquid adding barrel 8. The rotating mechanism adopts a rotating motor 11, and the output shaft of the rotating motor 11 is connected to the first rotating shaft 73. When the rotating motor 11 is started, the rotating motor 11 drives the first rotating shaft 73 to rotate, thereby making the liquid adding barrel 8 rotate flexibly. During the rotation of the liquid adding barrel 8, the liquid therein will be poured into the water filter chamber 3, realizing the process of automatic liquid adding. This design greatly improves the flexibility and coverage of liquid adding.

[0023] Furthermore, a cover 81 is provided on the top of the liquid adding barrel 8, and a stirring motor 14 is mounted on the cover. The output shaft of the stirring motor 14 is connected to a stirring rod, and the stirring rod is located in the liquid adding barrel 8. When the stirring motor 14 is started, the output shaft of the stirring motor 14 drives the stirring rod to rotate, thereby ensuring that the liquid in the liquid adding barrel 8 can be fully mixed before adding liquid, thereby improving the accuracy of the test.

[0024] Furthermore, a water inlet is provided on the cover 81, and the water inlet is connected to a water supply pipe 13, and an electromagnetic control valve 12 is provided on the water supply pipe 13. The electromagnetic control valve 12 is provided on the water supply pipe 13, which realizes the automation and precise control of water addition.

[0025] Furthermore, the water filter chamber 3 is fixed to the second sleeve 16 via a connecting rod 15. The second sleeve 16 is sleeved on the outside of the support rod 2. A second locking screw 17 is provided on the second sleeve 16 to fix the position of the second sleeve 16. The second sleeve 16 can also slide up and down along the support rod 2 and is fixed in position by the second locking screw 17, so that the height of the water filter chamber 3 can be adjusted according to actual needs, thereby enhancing the applicability of the tester.

[0026] The electrical components such as the electromagnetic control valve, rotating motor, stirring motor 14 used in the present invention are all electrically connected to the controller. At the same time, the controller is also electrically connected to the display screen. The opening and closing of the electromagnetic control valve, rotating motor and stirring motor can be controlled through the display screen. This connection method belongs to the existing technology and will not be repeated here.

[0027] The working principle of this utility model is:

[0028] 1. Put 3g of absolutely dry slurry into the liquid adding bucket 8, then click Start on the display screen. The water adding pipe 13 will automatically add water to the liquid adding bucket until it reaches the 1000ml mark, then stop adding water.

[0029] 2. Close the electromagnetic control valve and start the stirring motor 14 at the same time. The output shaft of the stirring motor 14 drives the stirring rod to stir the liquid in the liquid adding barrel. The speed and stirring time can be set through the display screen.

[0030] 3. After stirring evenly, start the rotating motor 11. The output shaft of the rotating motor drives the liquid adding bucket to rotate, and the liquid adding bucket is tilted, so that the liquid in the liquid adding bucket is quickly poured into the water filtering chamber 3. Manually buckle the cover and drain the water;

[0031] 4. The filtered water flows into the water receiving bucket through the side pipe 5. The freeness can be calculated based on the water volume in the water receiving bucket.

[0032] In order to monitor the temperature of the water in the water receiving bucket, a temperature sensor can be installed in the water receiving bucket. At the same time, the temperature sensor is electrically connected to the display screen, and the temperature of the water in the water receiving bucket can be known through the display screen.

[0033] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A freeness tester, comprising a bottom plate, characterized in that: A support rod is provided on the bottom plate, and a water filter chamber is provided on the support rod. A sieve plate is provided in the water filter chamber, and a funnel is provided below the water filter chamber. A side pipe and a straight pipe are provided at the lower part of the funnel; a liquid adding rack is provided on the upper end of the support rod, and the liquid adding rack is rotatably connected to a liquid adding bucket, and the liquid adding bucket is connected to a rotating mechanism, and the liquid adding bucket is located above the water filter chamber.

2. The freeness tester according to claim 1, characterized in that The liquid adding rack is fixed to a first sleeve, the first sleeve is sleeved on the outside of the support rod, and a first locking screw is provided on the first sleeve to lock the position of the first sleeve.

3. The freeness tester according to claim 2, characterized in that The liquid adding rack includes a "first L-shaped plate" and a "second L-shaped plate" arranged opposite to each other, and a first rotating shaft and a second rotating shaft are respectively rotatably provided on the inner sides of the "first L-shaped plate" and the "second L-shaped plate", and the first rotating shaft and the second rotating shaft are both fixedly connected to the liquid adding barrel.

4. The freeness tester according to claim 3, characterized in that The rotating mechanism adopts a rotating motor, and the output shaft of the rotating motor is connected to the first rotating shaft.

5. The freeness tester according to claim 1, characterized in that: A cover is provided on the top of the liquid adding barrel, a stirring motor is installed on the cover, an output shaft of the stirring motor is connected to a stirring rod, and the stirring rod is located in the liquid adding barrel.

6. The freeness tester according to claim 5, characterized in that: The cover body is provided with a water inlet, the water inlet is communicated with a water adding pipe, and the water adding pipe is provided with an electromagnetic control valve.

7. The freeness tester according to claim 1, characterized in that: The water filter chamber is fixed to the second sleeve through a connecting rod. The second sleeve is sleeved on the outside of the support rod. A second locking screw is provided on the second sleeve to fix the position of the second sleeve.

8. The freeness tester according to claim 1, characterized in that: The liquid adding barrel is provided with a scale.

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