A new material catalyst preparation slurry viscosity testing device

Abstract

The application discloses a slurry viscosity testing device for new material catalyst preparation and relates to the technical field of viscosity detection.The device comprises a base and a vertical plate, the rear side of the upper end face of the base is vertically fixed with the vertical plate, the upper end face of the vertical plate is fixed with a first motor, the output end of the first motor is fixed with a threaded rod, the threaded rod is connected with the vertical plate through a bearing, the front side of the vertical plate is provided with a main machine, and the front side of the main machine is provided with a sealing plate.The device can seal the sample in the sample cylinder and apply negative pressure before detection, can promote the rapid escape of the bubbles in the slurry, and after the exhaust is completed, the sealing effect of the sealing plug on the through hole is removed, so that the system returns to the normal pressure state, the interference of the fluid characteristic change or cavitation phenomenon caused by the negative pressure environment on the viscosity measurement is avoided, and the authenticity and reliability of the data are guaranteed from the source.

Description

Technical Field

[0001] This invention relates to the field of viscosity testing technology, specifically to a novel slurry viscosity testing device for preparing catalysts. Background Technology

[0002] In the preparation of new material catalysts, especially heterogeneous catalysts, the rheological properties of the slurry (such as viscosity) are key parameters that determine the performance of the final catalyst product (such as specific surface area, porosity, and distribution of active components). Precise viscosity control is crucial for subsequent processes such as coating, impregnation, and spray drying. Currently, rotational viscometers are widely used in laboratories to measure the viscosity of catalyst slurries.

[0003] However, traditional viscosity testing methods still have some shortcomings in practical applications:

[0004] 1. During the preparation and settling process, catalyst slurry is prone to entraining gas and forming bubbles. These bubbles will seriously affect the stability of the fluid shear field during measurement, resulting in distorted viscosity readings, large data fluctuations, and difficulty in ensuring accuracy.

[0005] 2. The slurry is prone to sedimentation or agglomeration, resulting in an uneven system and affecting the accuracy of the test data;

[0006] 3. Existing viscometers mostly use threaded connections for rotor installation. After measuring high-viscosity slurries, rotor disassembly and cleaning are extremely inconvenient, and there is a risk of damaging the sensor due to improper operation. Summary of the Invention

[0007] The purpose of this invention is to provide a novel slurry viscosity testing device for the preparation of material catalysts, so as to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a slurry viscosity testing device for preparing a new material catalyst, comprising a base and a vertical plate, wherein the vertical plate is vertically fixed to the rear side of the upper end face of the base, a first motor is fixed to the upper end face of the vertical plate, the output end of the first motor is fixed to a threaded rod, the threaded rod is bearing connected inside the vertical plate, a main unit is provided on the front side of the vertical plate, and a sealing plate is provided directly below the main unit, the sealing plate contacts the sample cylinder to achieve sealing;

[0009] The exhaust mechanism is used to perform negative pressure exhaust before the slurry viscosity test, and automatically restores the air pressure after exhaust to ensure that the test environment is under normal pressure. The exhaust mechanism is connected to the sealing plate.

[0010] A stirring mechanism is used to agitate the slurry in order to achieve rapid degassing and ensure the uniformity of the slurry. The stirring mechanism is connected to the sealing plate.

[0011] The testing mechanism is used to perform slurry viscosity testing, and the testing mechanism is mounted on a sealing plate.

[0012] Preferably, rubber buffer pads are symmetrically fixed on the lower end face of the base, and a water bath sleeve is fixed on the base. The center of the water bath sleeve and the center of the sealing plate are on the same axis. A temperature sensor is fixed inside the water bath sleeve. A sample tube is nested in the water bath sleeve, and an inlet and an outlet are installed on the side of the water bath sleeve. The inlet and outlet are connected to a spiral water channel opened inside the water bath sleeve. Through the buffer pads, the entire device can be buffered and shock-absorbing, ensuring the stability of the device. In conjunction with the water bath sleeve, the temperature of the sample tube can be controlled to ensure that the temperature of the slurry inside the sample tube meets the detection requirements.

[0013] Preferably, a connecting block is fixed to the rear end face of the host, and the connecting block and the threaded rod are connected by a thread. The rear end face of the host is also symmetrically fixed with sliders, and the sliders are slidably connected to the vertical plate. Through the above structure, the height of the host can be adjusted, thereby ensuring the normal operation of the test.

[0014] Preferably, the exhaust mechanism includes cylindrical parts that are symmetrically fixed to the lower end face of the main unit. The upper side of the cylindrical part has an air hole, and the lower side of the cylindrical part is connected to a conduit. The conduit passes through the sealing plate. Through the air hole, the internal air pressure of the upper side of the cylindrical part can be balanced. In conjunction with the conduit, it can provide a basic guarantee for the discharge of air bubbles in the slurry in the sample cylinder.

[0015] Preferably, the cylinder and the hollow rod are slidably connected, and a circular hole is provided at the upper outer end of the hollow rod. A piston that is slidably connected to the cylinder is fixed at the upper end of the hollow rod, and a first spring is fixed between the piston and the cylinder. The lower end of the hollow rod is fixed to the sealing plate, and the hollow rod communicates with the through hole opened on the sealing plate. By sliding the piston in the cylinder, the negative pressure exhaust effect of air bubbles in the slurry in the sample cylinder can be achieved, thereby effectively reducing the presence of air bubbles in the sample and affecting the accuracy of the detection data.

[0016] Preferably, the through hole and the sealing plug cooperate to achieve a sealing effect, and the sealing plug is fixed on the fixed plate. The fixed plate is symmetrically fixed with sliding rods on the left and right sides, and the sliding rods are slidably connected to the sealing plate. A second spring is fixed between the sliding rods and the sealing plate. Through the above structure, the sealing and unlocking of the through hole can be provided, so that the air pressure balance in the sample tube can be restored after the air bubbles in the slurry in the sample tube are removed, thereby effectively avoiding the sample being under negative pressure and affecting the accuracy of the detection data.

[0017] Preferably, the stirring mechanism includes a circular sleeve with a bearing connected to a sealing plate, and an arc-shaped groove is provided on the inner side of the circular sleeve. The arc-shaped groove and the steel rod are slidably connected. At the same time, the steel rod is fixed to the lower end face of the main unit. When the main unit moves relative to the circular sleeve, the sliding action between the arc-shaped groove and the steel rod can provide a basic force for the rotation of the circular sleeve.

[0018] Preferably, a toothed ring is fixed inside the sleeve, and the toothed ring meshes with a gear to achieve transmission. The gear is fixed on the rotating shaft, and the rotating shaft is connected to the sealing plate by an angle bearing. A stirring plate is rotatably connected to the rotating shaft, and a torsion spring is connected between the stirring plate and the rotating shaft. The rotation of the sleeve drives the toothed ring to rotate. Combined with the transmission action between the toothed ring and the gear, it can provide a basic force for the rotation of the rotating shaft and the stirring plate. This can achieve both rapid venting of the slurry and uniform mixing of the slurry, ensuring the accuracy of slurry viscosity detection.

[0019] Preferably, the detection mechanism includes a second motor disposed above the sealing plate, and the output shaft of the second motor is connected to a torque sensor fixed on the sealing plate. The output shaft of the torque sensor is fixed to a round rod, and a mounting sleeve is fixed to the lower end of the round rod. A first permanent magnet is fixed inside the mounting sleeve, and the mounting sleeve and the clamping block are nested together. A second permanent magnet is fixed on the clamping block, and the second permanent magnet and the first permanent magnet form a magnetic attraction structure. A rotor is fixed to the lower end of the clamping block. Through the above structure, a basic guarantee can be provided for the viscosity detection of slurry. Furthermore, through the magnetic attraction between the second permanent magnet and the first permanent magnet, the rotor can be quickly disassembled and replaced, improving the convenience of device operation.

[0020] Preferably, a limiting rod is slidably connected to the card block, and the limiting rod is nested with the groove on the inner side of the mounting sleeve to achieve a positioning function. A third spring is fixed between the limiting rod and the card block. With the above structure, the centrifugal force generated by the rotation of the card block can be used during the testing process to make the limiting rod nested with the groove on the inner side of the mounting sleeve for positioning, thereby ensuring the stability of the connection between the mounting sleeve and the card block, preventing the mounting sleeve from separating from the card block during the testing process, and ensuring the normal progress of the testing.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. The new material catalyst preparation slurry viscosity testing device can seal the sample in the sample tube and apply negative pressure before testing through the exhaust mechanism, which can promote the rapid escape of air bubbles inside the slurry. After the exhaust is completed, the sealing plug is released from the through hole, so that the system returns to normal pressure. This completely avoids the interference of viscosity measurement caused by changes in fluid characteristics or cavitation phenomena that may be caused by the negative pressure environment, and ensures the authenticity and reliability of the data from the source.

[0023] 2. The new material catalyst preparation slurry viscosity testing device has a stirring mechanism driven by the lifting and lowering motion of the main unit. During the pressing and sealing process, the slurry is automatically stirred, which not only accelerates the exhaust efficiency of the exhaust mechanism, but also ensures the uniform distribution of slurry components, prevents sedimentation, and makes each measurement represent the true overall viscosity of the slurry, greatly improving the repeatability and consistency of the measurement.

[0024] 3. The new material catalyst preparation slurry viscosity testing device adopts a dual fixing method of magnetic adsorption and centrifugal force assisted mechanical locking in the testing mechanism, which makes the installation and disassembly of the rotor simple and quick. After the measurement is completed, the mechanical lock is automatically released, which greatly simplifies the cleaning and maintenance process, reduces the difficulty of operation and the risk of sensor damage, and can be better suited for high-throughput laboratory scenarios that require frequent rotor replacement or cleaning. Attached Figure Description

[0025] Figure 1 This is a frontal three-dimensional structural diagram of the device of the present invention;

[0026] Figure 2 This is a frontal cross-sectional three-dimensional structural diagram of the water bath sleeve of the present invention;

[0027] Figure 3 This is a three-dimensional structural diagram of the main unit of the present invention viewed from below;

[0028] Figure 4 This is a frontal cross-sectional three-dimensional structural diagram of the sealing plate of the present invention;

[0029] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle;

[0030] Figure 6 For the present invention Figure 4 Enlarged structural diagram at point B;

[0031] Figure 7 This is a three-dimensional structural diagram of the stirring mechanism of the present invention;

[0032] Figure 8 This is a frontal cross-sectional three-dimensional structural diagram of the mounting sleeve of the present invention;

[0033] Figure 9 This is a frontal cross-sectional three-dimensional structural diagram of the card block of the present invention.

[0034] In the diagram: 1. Base; 101. Buffer pad; 102. Water bath sleeve; 103. Temperature sensor; 104. Water inlet; 105. Water outlet; 2. Sample cylinder; 3. Vertical plate; 4. First motor; 5. Threaded rod; 6. Main unit; 601. Connecting block; 602. Slider; 7. Sealing plate; 8. Exhaust mechanism; 801. Cylinder; 802. Air hole; 803. Guide tube; 804. Hollow rod; 805. Round hole; 806. Piston; 807. First spring; 808. Through hole; 809. Sealing plug; 810. Fixing element. 811. Plate; 812. Slide rod; 9. Second spring; 9. Stirring mechanism; 901. Circular sleeve; 902. Arc groove; 903. Steel rod; 904. Gear ring; 905. Gear; 906. Rotating shaft; 907. Stirring plate; 10. Detection mechanism; 1001. Second motor; 1002. Torque sensor; 1003. Round rod; 1004. Mounting sleeve; 1005. First permanent magnet; 1006. Locking block; 1007. Second permanent magnet; 1008. Rotor; 1009. Limiting rod; 1010. Third spring. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Please see Figures 1-9 The present invention provides a technical solution: a slurry viscosity testing device for preparing a new material catalyst, comprising a base 1 and a vertical plate 3. The vertical plate 3 is vertically fixed to the rear side of the upper end face of the base 1. A first motor 4 is fixed to the upper end face of the vertical plate 3. The output end of the first motor 4 is fixed to a threaded rod 5. The threaded rod 5 is connected to the vertical plate 3 by a bearing. A main unit 6 is provided on the front side of the vertical plate 3. A sealing plate 7 is provided directly below the main unit 6. The sealing plate 7 contacts the sample cylinder 2 to achieve sealing.

[0037] The exhaust mechanism 8 is used to perform negative pressure exhaust before the slurry viscosity test, and automatically restores the air pressure after exhaust to ensure that the test environment is under normal pressure. The exhaust mechanism 8 is connected to the sealing plate 7.

[0038] The stirring mechanism 9 is used to stir the slurry to achieve rapid degassing and ensure the uniformity of the slurry. The stirring mechanism 9 is connected to the sealing plate 7.

[0039] The detection mechanism 10 is used to perform the function of detecting the viscosity of the slurry. The detection mechanism 10 is installed on the sealing plate 7.

[0040] Rubber buffer pads 101 are symmetrically fixed on the lower end face of the base 1, and a water bath sleeve 102 is fixed on the base 1. The center of the water bath sleeve 102 is on the same axis as the center of the sealing plate 7. A temperature sensor 103 is fixed inside the water bath sleeve 102. A sample tube 2 is nested in the water bath sleeve 102. An inlet 104 and an outlet 105 are installed on the side of the water bath sleeve 102. The inlet 104 and the outlet 105 are connected to the spiral water channel opened inside the water bath sleeve 102.

[0041] When using the new material catalyst to prepare the slurry viscosity test device, such as Figure 1 and Figure 2 As shown, the slurry to be tested is first placed in the sample tube 2, and the sample tube 2 can be installed and positioned by nesting the sample tube 2 with the water bath sleeve 102. At this time, the lower end face of the sample tube 2 is in contact with the temperature sensor 103. The temperature sensor 103 can monitor the temperature of the slurry. According to the actual testing requirements, the constant temperature fluid is sent into the water inlet 104 by the pump. With the circulation of the spiral water channel opened in the water bath sleeve 102, the temperature of the slurry can be controlled to ensure that the temperature of the slurry meets the actual testing requirements.

[0042] A connecting block 601 is fixed to the rear end face of the main unit 6, and the connecting block 601 is threadedly connected to the threaded rod 5. A slider 602 is also symmetrically fixed to the rear end face of the main unit 6, and the slider 602 is slidably connected to the vertical plate 3. The exhaust mechanism 8 includes a cylinder 801 symmetrically fixed to the lower end face of the main unit 6, with an air hole 802 on the upper side of the cylinder 801, and a conduit 803 connected to the lower side of the cylinder 801, the conduit 803 penetrating the sealing plate 7. The cylinder 801 is slidably connected to the hollow rod 804, and a circular hole 805 is opened at the upper outer end of the hollow rod 804. A piston 806 is fixedly attached to the upper end of the hollow rod 804 and slidably connected inside the cylinder 801. A first spring 807 is fixed between the piston 806 and the cylinder 801. The lower end of the hollow rod 804 is fixed to the sealing plate 7, and the hollow rod 804 communicates with the through hole 808 opened on the sealing plate 7. The through hole 808 cooperates with the sealing plug 809 to achieve a sealing effect. The sealing plug 809 is fixed on the fixed plate 810, and sliding rods 811 are symmetrically fixed on the left and right sides of the fixed plate 810. The sliding rods 811 are slidably connected to the sealing plate 7, and a second spring 812 is fixed between the sliding rods 811 and the sealing plate 7.

[0043] When the slurry temperature is at the preset temperature, such as Figures 1-9As shown, by starting the first motor 4, the threaded rod 5 is driven to rotate. Combined with the threaded connection between the threaded rod 5 and the connecting block 601, and the sliding guide between the slider 602 and the vertical plate 3, the main unit 6, sealing plate 7, exhaust mechanism 8, stirring mechanism 9, and detection mechanism 10 move downwards synchronously. When the sealing plate 7 contacts the upper surface of the sample cylinder 2, the sample cylinder 2 is sealed, ensuring the slurry inside is within the sealed space formed by the sealing plate 7 and the sample cylinder 2, with the end of the conduit 803 located within this sealed space. At this point, the main unit 6 continues to move downwards. Because the position of the sealing plate 7 is limited, the main unit 6 moves downwards relative to the sealing plate 7, causing the hollow rod 804 and piston 806 to slide upwards within the cylinder 801. The distance between the cylinder 801 and the sealing plate 7 decreases. Since the sealing plug 809 cooperates with the through hole 808, a seal is achieved. The sealing mechanism, via the conduit 803, allows for the extraction of air from the sealed space, creating a negative pressure within the sealed space. This facilitates the removal of air bubbles from the slurry in the sample cylinder 2, preventing subsequent air bubbles from affecting the accuracy of the test data. During the continuous interaction between the cylinder 801 and the sealing plate 7, a continuous negative pressure venting effect is achieved in the sealed space. When the cylinder 801 contacts the sliding rod 811, causing the sliding rod 811 to move downward relative to the sealing plate 7, it simultaneously drives the fixed plate 810 and the sealing plug 809 to move downward. At this time, the second spring 812 contracts under force. When the sealing plug 809 separates from the through hole 808, it can reach the sealed state, allowing outside air to enter the sealed space through the sliding rod 811, the round hole 805, and the conduit 803, thereby restoring the sealed space to a normal pressure state and effectively preventing the negative pressure from affecting the accuracy of the slurry viscosity test.

[0044] The stirring mechanism 9 includes a circular sleeve 901 connected to the sealing plate 7 by a bearing, and an arc-shaped groove 902 is provided on the inner side of the circular sleeve 901. The arc-shaped groove 902 is slidably connected to the steel rod 903, and the steel rod 903 is fixed to the lower end face of the main unit 6. A toothed ring 904 is fixed on the inner side of the circular sleeve 901, and the toothed ring 904 meshes with a gear 905 to realize transmission. The gear 905 is fixed on the rotating shaft 906, and the rotating shaft 906 is connected to the sealing plate 7 by an angle bearing. A stirring plate 907 is rotatably connected to the rotating shaft 906, and a torsion spring is connected between the stirring plate 907 and the rotating shaft 906.

[0045] During the downward movement of the stirring mechanism 9, the stirring plate 907 on the rotating shaft 906 is in a vertical position under the action of the torsion spring, which facilitates the stirring plate 907 entering the sample cylinder 2 and contacting the slurry. When the main unit 6 moves downward relative to the sealing plate 7, the steel rod 903 moves downward relative to the circular sleeve 901. With the sliding action between the steel rod 903 and the arc groove 902, the circular sleeve 901 can be rotated under force, thereby synchronously driving the gear ring 904 to rotate. With the transmission action between the gear ring 904 and the gear 905, the rotating shaft 906 and the stirring plate 907 can be synchronously driven to rotate. Through the action of centrifugal force, the stirring plate 907 rotates relative to the rotating shaft 906 to achieve the stirring effect of the slurry. At this time, due to the synchronous operation of the exhaust mechanism 8, the stirring of the slurry can accelerate the discharge of air bubbles inside the slurry. Stirring can also achieve uniform mixing of the slurry, ensuring the accuracy of subsequent slurry viscosity test data.

[0046] The detection mechanism 10 includes a second motor 1001 disposed above the sealing plate 7, and the output shaft of the second motor 1001 is connected to a torque sensor 1002 fixed on the sealing plate 7. The output shaft of the torque sensor 1002 is fixed to a round rod 1003. A mounting sleeve 1004 is fixed to the lower end of the round rod 1003. A first permanent magnet 1005 is fixed inside the mounting sleeve 1004. The mounting sleeve 1004 and the locking block 1006 are nested together. A second permanent magnet 1007 is fixed on the locking block 1006. The second permanent magnet 1007 and the first permanent magnet 1005 form a magnetic attraction structure. A rotor 1008 is fixed to the lower end of the locking block 1006. A limit rod 1009 is slidably connected to the locking block 1006. The limit rod 1009 and the inner side of the mounting sleeve 1004 are slotted and nested to achieve positioning. A third spring 1010 is fixed between the limit rod 1009 and the locking block 1006.

[0047] Once the sealed space returns to normal pressure, starting the second motor 1001 rotates the output shaft of the torque sensor 1002 and the round rod 1003, simultaneously rotating the mounting sleeve 1004, the locking block 1006, and the rotor 1008. The torque sensor 1002 detects the resistance encountered by the rotor 1008 as it rotates behind the slurry, thus detecting the slurry viscosity. During the rotation of the mounting sleeve 1004, the locking block 1006, and the rotor 1008, centrifugal force causes the limiting rod 1009 to move outward relative to the locking block 1006, thereby aligning the limiting rod 1009 with the mounting sleeve 1004. 4. The inner groove is nested for secondary locking, thereby ensuring the stability of the connection between the mounting sleeve 1004 and the locking block 1006 and preventing the mounting sleeve 1004 from separating from the locking block 1006 during the testing process. After the testing is completed, when the rotor 1008 needs to be replaced and cleaned, the rotor 1008 stops rotating. Under the action of the third spring 1010, the limit rod 1009 is reset and disengaged from the inner groove of the mounting sleeve 1004, thereby automatically releasing the locking effect. At this time, simply pull out the locking block 1006 to separate the second permanent magnet 1007 from the first permanent magnet 1005 to achieve disassembly. The operation is convenient and simple.

[0048] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0049] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A new material catalyst preparation slurry viscosity testing device, comprising a base (1) and a vertical plate (3), the vertical plate (3) being vertically fixed on the rear side of the upper end face of the base (1), characterized in that: The vertical plate (3) upper end surface is fixed with first motor (4), the output of first motor (4) is fixed with threaded rod (5), threaded rod (5) bearing connection is in vertical plate (3), the front of vertical plate (3) is provided with main machine (6), the lower of main machine (6) is provided with sealing plate (7), sealing plate (7) is contacted with sample cylinder (2) and realizes sealing; Exhaust mechanism (8) is used for negative pressure exhaust before slurry viscosity detection, and automatically restores air pressure after exhaust, to ensure that the detection environment is in normal pressure state, the exhaust mechanism (8) is connected with sealing plate (7); Stirring mechanism (9) is used for realizing the stirring effect of slurry, to realize rapid exhaust and ensure the uniformity of slurry, the stirring mechanism (9) is connected with sealing plate (7); Detection mechanism (10) is used for realizing slurry viscosity detection, the detection mechanism (10) is installed on sealing plate (7); The exhaust mechanism (8) includes cylinder (801) fixed on the lower end surface of main machine (6) symmetrically, air holes (802) are formed in the side of cylinder (801), and the lower side of the side of cylinder (801) is connected with conduit (803), the conduit (803) penetrates sealing plate (7), the cylinder (801) and hollow rod (804) are connected by sliding, a round hole (805) is formed in the outer side of the upper end of hollow rod (804), the upper end of hollow rod (804) is fixed with piston (806) slidingly connected in cylinder (801), the first spring (807) is fixed between piston (806) and cylinder (801), the lower end of hollow rod (804) is fixed with sealing plate (7), the hollow rod (804) penetrates the through hole (808) formed in sealing plate (7), the through hole (808) cooperates with sealing plug (809) to realize sealing effect, the sealing plug (809) is fixed on fixed plate (810), the left and right symmetrically fixed slide rods (811) are fixed on fixed plate (810), the slide rods (811) are connected with sealing plate (7) by sliding, the second spring (812) is fixed between slide rods (811) and sealing plate (7), the stirring mechanism (9) includes circular sleeve (901) bearing connected on sealing plate (7), the arc-shaped groove (902) is formed in the inner side of circular sleeve (901), the steel rod (903) is connected with arc-shaped groove (902) by sliding, the steel rod (903) is fixed on the lower end surface of main machine (6), the tooth ring (904) is fixed in the inner side of circular sleeve (901), the tooth ring (904) is engaged with gear (905) to realize transmission, the gear (905) is fixed on rotating shaft (906), the rotating shaft (906) is connected with stirring plate (907) by rotating, and the torsional spring is connected between stirring plate (907) and rotating shaft (906).

2. The slurry viscosity testing device for catalyst preparation of a new material according to claim 1, characterized in that: The lower end face of the base (1) is fixed with rubber buffer pad (101) left and right symmetry, and the base (1) is fixed with water bath cover (102), and the center of the water bath cover (102) and the center of the sealing plate (7) are on the same axis, while the temperature sensor (103) is fixed in the water bath cover (102), the water bath cover (102) is nested with sample cylinder (2), and the water inlet (104) and water outlet (105) are installed on the side of the water bath cover (102), and the water inlet (104) and water outlet (105) are communicated with the spiral water channel in the water bath cover (102).

3. The slurry viscosity testing device for catalyst preparation of a new material according to claim 1, characterized in that: The rear end face of the main machine (6) is fixed with connecting block (601), and the connecting block (601) and the threaded rod (5) are threaded connection, the rear end face of the main machine (6) is also fixed with slide block (602) left and right symmetry, and the slide block (602) and the vertical plate (3) are sliding connection.

4. The slurry viscosity testing device for catalyst preparation of a new material according to claim 1, characterized in that: The detection mechanism (10) comprises a second motor (1001) arranged above the sealing plate (7), and the output shaft of the second motor (1001) is connected with the torque sensor (1002) fixed on the sealing plate (7), and the output shaft of the torque sensor (1002) is fixed with the round bar (1003), and the lower end of the round bar (1003) is fixed with the mounting sleeve (1004), the first permanent magnet (1005) is fixed in the mounting sleeve (1004), the mounting sleeve (1004) and the clamping block (1006) are nested connection, and the second permanent magnet (1007) is fixed on the clamping block (1006), and the second permanent magnet (1007) and the first permanent magnet (1005) form a magnetic attraction structure, the lower end of the clamping block (1006) is fixed with the rotor (1008).

5. The slurry viscosity testing device for catalyst preparation of a new material according to claim 4, characterized in that: The clamping block (1006) is slidably connected with a limiting rod (1009), and the limiting rod (1009) is nested in the slot on the inner side of the mounting sleeve (1004) to realize positioning effect, and the third spring (1010) is fixed between the limiting rod (1009) and the clamping block (1006).

Images