CN221816150U - Mixed slurry stirring tank - Google Patents

Abstract

The utility model relates to a mixed slurry stirring tank, which belongs to the technical field of slurry stirring, and comprises a reactor tank, wherein a rotating shaft is arranged in the reactor tank, the upper end of the rotating shaft is connected with a first driving component, a first stirring blade is fixed on the rotating shaft, rotating cylinders are arranged on the upper and lower sides of the first stirring blade, a second stirring blade is arranged between the two rotating cylinders, a scraper is fixed on one side of the second stirring blade facing outward, the rotating cylinder located on the upper side is connected with the rotating shaft in a rotating cooperation manner, the lower end of the rotating cylinder located on the lower side is connected with the second driving component after passing through the bottom wall of the reactor tank, the second driving component drives the rotating cylinder to rotate, drives the second stirring blade to rotate, the scraper scrapes off the slurry adhered to the inner wall, and avoids the influence of the adhesion on the mixing effect, the first stirring blade and the second stirring blade rotate in opposite directions, so that the slurry circulates upward at the center position, so that the mixing is more uniform during the slurry stirring process, and the product quality and stirring rate are improved.

Description

A mixed slurry stirring tank

Technical Field

The utility model relates to a mixed slurry stirring tank and belongs to the technical field of slurry stirring.

Background Art

Mixing slurry stirring tank is a kind of equipment widely used in chemical, pharmaceutical, food and other industries for mixing, dissolving, reacting or emulsifying various substances. Its main function is to drive the agitator through mechanical energy to make the materials in the tank move and shear strongly, so as to achieve uniform mixing.

The existing slurry mixing tank mainly includes a tank body, a stirring device (used to stir the material in the tank body, composed of a stirring shaft, stirring blades, a motor and a reducer, etc.), an inlet and outlet, and a plurality of scrapers. In actual use, since the mixed slurry is a paste or a paste, the mixed slurry is easy to adhere to the inner wall of the tank body during the stirring process. At present, the scrapers of the slurry mixing tank are installed vertically and spaced on the stirring blades. Not only is the scraping ability limited, but the mixed slurry will also splash and adhere to the top of the tank during the stirring process. The scraper cannot scrape the top of the tank. Therefore, after the equipment has been used for a period of time, the slurry will adhere, which may not only cause uneven products and affect the quality of the final product, but also make it difficult to clean the inside of the mixing tank, increasing the difficulty of maintenance and cleaning.

Utility Model Content

In order to overcome the above-mentioned defects of the prior art, the utility model provides a mixed slurry stirring tank with reasonable structural design, easy use, capable of scraping off the slurry on the top wall, side wall and bottom wall in the reaction kettle tank, avoiding the slurry adhesion phenomenon, ensuring product quality, and reducing the difficulty of maintenance and cleaning.

The utility model provides the following technical solutions:

The mixed slurry stirring tank comprises a vertically arranged reactor tank, a reactor cover is arranged on the top of the reactor tank, the interior of the reactor tank is a hollow columnar structure, and a rotating shaft is arranged at the vertical center position, the upper end of the rotating shaft passes through the reactor cover and is connected to a first driving component for driving it to rotate, the bottom of the rotating shaft is rotatably connected to the bottom of the reactor tank or suspended, and a plurality of first stirring blades with a spiral structure are fixed on the rotating shaft;

A rotating cylinder is independently arranged in the reactor tank on the upper and lower sides of the first stirring blade, and the rotating cylinder is a cylindrical structure that is connected from top to bottom. The upper rotating cylinder is sleeved on the upper part of the rotating shaft and is rotatably connected to the rotating shaft, and the lower rotating cylinder is sleeved on the lower part of the rotating shaft and is rotatably matched with the rotating shaft, or is independently arranged below the rotating shaft, and the lower end of the lower rotating cylinder passes through the bottom wall of the reactor tank and is connected to a second driving component that drives the rotating cylinder to rotate, and a plurality of second stirring blades with a spiral structure are independently arranged in the reactor tank between the two rotating cylinders, the upper end of the second stirring blade is connected to the rotating cylinder located on the upper side, and the lower end of the second stirring blade is connected to the rotating cylinder located on the lower side, and a scraper with a strip structure is fixed on one side of the second stirring blade facing outward, and the scraper is arranged with a clearance fit with the top wall, side wall and bottom wall in the reactor tank;

The first stirring blade is arranged on the inner side of the second stirring blade and does not interfere with each other when rotating.

The upper end of the scraper of the mixed slurry stirring tank is located at the top of the second stirring blade, and the lower end is located at the bottom of the second stirring blade, so that the scraper can scrape the inner wall of the reactor tank from top to bottom at the same time. The second driving component drives the rotating cylinder to rotate, thereby driving the second stirring blade to rotate, and the scraper with a gap fit with the inner wall scrapes the slurry adhered to the inner wall. Under the cooperation of the head structure at the upper and lower ends of the reactor tank and the scraper, the slurry on the top wall, side wall and bottom wall of the reactor tank can be scraped, thereby avoiding the influence of slurry adhesion on the mixing effect; by controlling the first stirring blade and the second stirring blade working independently to rotate in opposite directions, the slurry is circulated upward at the center position, so that the mixing during the slurry stirring process is more uniform, and the product quality and stirring rate are improved. The size of the gap between the scraper and the inner wall of the reactor tank is determined by the material of the scraper. When the scraper is made of soft materials such as rubber and soft silicone, the scraper fits the inner wall of the reactor tank and the gap is set to zero.

Further preferably, the first drive assembly includes a first motor, the power output end of the first motor is connected to the rotating shaft through a coupling, and the first motor is installed on the reactor cover through a first mounting bracket. The rotating shaft of the first motor is connected to the upper end of the coupling, and the lower end of the coupling is connected to the rotating shaft, which plays a role of connection and protection; the first motor drives the rotating shaft to rotate, so that the stirring is uniform and time-saving and labor-saving, the first mounting bracket is installed on the reactor cover, and the first motor is installed on the first mounting bracket, which is convenient for the installation and maintenance of the first motor.

Further preferably, the second driving assembly includes a second motor, the power output end of the second motor is connected to the rotating drum located at the lower side, and the second motor is installed at the bottom of the reactor tank through a second mounting bracket. The second motor drives the rotating drum to rotate, so that the stirring is uniform and time-saving and labor-saving. The second mounting bracket is installed at the bottom of the reactor tank, and the second motor is installed on the second mounting bracket, which is convenient for the installation and maintenance of the second motor.

Preferably, the reactor cover is provided with a feed port, the feed end of the feed port is connected with a feed pipe, and the top of the feed pipe is covered with an end cap. The feed pipe can be connected with other feeding devices to facilitate adding stirring slurry into the reactor tank, and the end cap can prevent the slurry from splashing during stirring.

Preferably, a discharge port is provided at the bottom of the reactor tank, a discharge end of the discharge port is connected to a discharge pipe, and a valve is installed on the discharge pipe. The valve controls the discharge of the discharge pipe, which is more convenient.

Preferably, a first through hole communicating with the rotating shaft is provided on the reactor cover, and the rotating shaft and the first through hole are provided with a rotary dynamic seal. The rotary dynamic seal is a type of dynamic seal, which can prevent the internal slurry from overflowing from the first through hole and affecting the rotation of the rotating shaft.

Further preferably, a second through hole communicating with the inside and outside is opened at the bottom of the reactor tank corresponding to the rotating cylinder, and the rotating cylinder and the second through hole are arranged in a rotating dynamic seal. The rotating cylinder located at the lower side and the second through hole are arranged in a rotating dynamic seal to prevent the internal slurry from overflowing from the second through hole.

Further preferably, at least three supporting legs for supporting the reactor tank are installed at the bottom of the reactor tank. The supporting legs raise the reactor tank to prevent the impact of the ground on the reactor tank, and facilitate the installation and maintenance of the discharge and the second motor.

Further preferably, the top of the reactor tank is opened, and the reactor cover is closed at the opening to facilitate cleaning and maintenance of the interior.

Compared with the prior art, the utility model has the following beneficial effects:

1. The mixed slurry stirring tank described in the utility model can make the scraper which is in clearance fit with the inner wall scrape off the slurry adhering to the inner wall, and can scrape off the slurry on the top wall, side wall and bottom wall in the reaction kettle tank, thereby avoiding the influence of adhesion on the slurry mixing effect, ensuring the quality of the product and reducing the difficulty of maintenance and cleaning.

2. The mixed slurry stirring tank described in the utility model controls the first stirring blade and the second stirring blade that work independently to rotate in opposite directions, so that the slurry circulates upward at the center position, making the mixing more uniform during the slurry stirring process, further improving the product quality and stirring rate.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the main structure of a mixed slurry stirring tank;

FIG2 is a schematic diagram of the top view of the structure of FIG1 ;

Fig. 3 is a schematic cross-sectional view of the structure along line A-A in Fig. 2;

FIG4 is a schematic diagram of the top view of the structure of FIG1 after some components are removed;

FIG5 is a schematic diagram of the structure of the feed pipe, reactor cover and reactor tank in FIG1 ;

FIG6 is a schematic diagram of a three-dimensional structure of a mixed slurry stirring tank after partial section;

FIG. 7 is a schematic diagram of the explosion structure of the mixed slurry stirring tank.

Among them, 1. feed pipe; 2. end cover; 3. first motor; 4. coupling; 5. first mounting bracket; 6. reactor cover; 7. reactor tank; 8. scraper; 9. first stirring blade; 10. second stirring blade; 11. discharge port; 12. valve; 13. discharge pipe; 14. second motor; 15. second mounting bracket; 16. support leg; 17. rotating drum; 18. rotating shaft; 19. feed port; 20. first through hole; 21. second through hole.

DETAILED DESCRIPTION

The present invention is further described below through specific embodiments in conjunction with the accompanying drawings, but is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present design scheme.

Example

This embodiment uses the following materials:

1. Prepare some easy-to-clean and high-strength materials such as SUS340, SUS231 or SUS316L for making the feed pipe 1, the end cover 2, the first mounting frame 5, the reactor cover 6, the reactor tank 7, the discharge pipe 13 and the second mounting frame 15.

2. Prepare a number of metal materials such as stainless steel or titanium alloy with high strength and hardness that can withstand the force of the stirring process, for making the first stirring blade 9, the second stirring blade 10, the rotating cylinder 17 and the rotating shaft 18.

3. Prepare two corrosion-resistant and wear-resistant motors, one for the first motor 3 and the other for the second motor 14 .

4. Prepare a stainless steel ball valve to be used as valve 12.

5. Prepare at least three supporting legs 16 made of high-strength materials such as gray cast iron or angle steel.

6. Prepare two couplings 4.

7. Prepare some flexible materials with wear resistance and corrosion resistance such as polytetrafluoroethylene for making scraper 8.

The above materials are assembled as follows:

Step 1: Production

1. Make a reactor cover 6;

As shown in FIG2 and FIG5, the cross section of the reactor cover 6 is a semi-elliptical structure, the interior is hollow, and the bottom is open, so that the main body of the reactor cover 6 is a head structure. As shown in FIG1 and FIG5, a feed port 19 is opened on the left side of the top of the reactor cover 6, and a feed pipe 1 of a cylindrical structure is fixed at the upper end of the feed port 19, and an end cap 2 of a disc structure is hinged on the top surface of the feed pipe 1. As shown in FIG5, a first through hole 20 that communicates with each other from top to bottom is opened at the vertical center of the reactor cover 6. A fixing ring of a circular ring structure as shown in FIG2 is connected along the circumference at the bottom of the reactor cover 6.

2. Make a reaction kettle tank 7;

As shown in FIG5 , the reactor tank 7 has a cylindrical shape, a head structure at the bottom, a hollow interior, and an open structure at the top. The inner diameter of the reactor tank 7 is consistent with the inner diameter of the reactor cover 6. A second through hole 21 communicating with the inside and outside is opened at the vertical center of the bottom of the reactor tank 7. A discharge port 11 communicating with the inside and outside is opened at the bottom of the reactor tank 7 on the right side of the second through hole 21. The discharge port 11 is connected to the upper left, lower right, and inside and outside. As shown in FIG3 , a 120-degree bent pipe is fixed at the discharge port 11 as a discharge pipe 13, and a valve 12 is installed near the discharge port 11 on the discharge pipe 13. A fixing ring of a circular ring structure is fixed to the outer wall of the top of the reactor tank 7 along the circumferential direction.

3. Make a first mounting frame 5;

As shown in Figures 1 and 6, the main body of the first mounting frame 5 is composed of a disk connected to a cylindrical boss at the bottom; as shown in Figure 3, a circular hole communicating with each other from top to bottom is opened in the first mounting frame 5; as shown in Figure 1, a through hole with a square structure and communicating with each other from front to back is opened on the front of the first mounting frame 5 as an observation port.

4. Make a second mounting frame 15;

As shown in Figures 1, 3, 6 and 7, the structure of the second mounting bracket 15 is consistent with that of the first mounting bracket 5 and is processed using the same method, but the overall size of the second mounting bracket 15 is smaller than that of the first mounting bracket 5. The specific size depends on the installation requirements of the second motor 14.

5. Making the second stirring blade 10 and the rotating cylinder 17;

As shown in FIG3 , the rotating cylinder 17 is a two-section hollow cylinder. As shown in FIG1 and FIG4 , there are four second stirring blades 10 in a spiral structure. Both ends of the second stirring blades 10 are respectively connected to the rotating cylinders 17 at both ends. The four second stirring blades 10 are evenly spaced and distributed around the circumference.

6. Make the first stirring blade 9 and the rotating shaft 18;

As shown in FIG. 3 , the rotating shaft 18 is a cylindrical structure; as shown in FIG. 1 and FIG. 6 , there are two first stirring blades 9 in a spiral structure, and the two first stirring blades 9 are connected to the rotating shaft 18 via a rectangular crossbar.

7. Make scraper 8;

As shown in FIG. 1 and FIG. 7 , the scraper 8 is in the shape of an elongated strip, and its curved shape and angle are consistent with those of the second stirring blade 10 ; as shown in FIG. 1 and FIG. 6 , the outer wall of the scraper 8 fits against the inner wall of the reactor cover 6 and the reactor tank 7 , respectively, with a clearance fit.

Step 2: Assembly

As shown in FIG. 1 , the reactor tank 7 is placed vertically, three supporting legs 16 are fixed at equal intervals on the bottom of the reactor tank 7 , a second mounting frame 15 is installed near the second through hole 21 at the bottom of the reactor tank 7 , and a second motor 14 is installed at the bottom of the second mounting frame 15 .

As shown in Figures 3 and 6, the rotating shaft 18 is installed in the rotating cylinder 17. In actual use, a bearing can be installed between the rotating cylinder 17 located on the upper side and the rotating shaft 18, which can not only rotate independently but also reduce friction. The lower end of the rotating shaft 18 can be rotatably connected to the rotating cylinder 17 located on the lower side through a bearing, and can actually be independently located above the lower rotating cylinder 17.

The scraper 8 is fixed on the outer wall of the second stirring blade 10; the rotating cylinder 17 located on the lower side passes through the second through hole 21 and is directly connected to the rotating shaft of the second motor 14, and can actually be connected through the coupling 4; the reactor cover 6 is installed on the top of the reactor tank 7, the upper end of the rotating shaft 18 passes through the first through hole 20, the first mounting frame 5 is installed on the top surface of the reactor cover 6, the first motor 3 is installed on the first mounting frame 5, and the rotating shaft 18 is connected to the rotating shaft of the first motor 3 through the coupling 4.

Instructions for use are as follows:

When in use, as shown in Figures 1 and 6, the end cover 2 is opened, the stirring raw materials are added to the reactor tank 7, the first motor 3 and the second motor 14 are started, the rotating drum 17 rotates counterclockwise, and the rotating shaft 18 rotates clockwise; the rotating drum 17 drives the second stirring blade 10 to rotate, so that the mixed slurry is stirred and transmitted downward at the same time, and the scraper 8 can scrape off the mixed slurry adhered to the reactor cover 6 and the inner wall of the reactor tank 7, and the rotating shaft 18 drives the first stirring blade 9 to rotate, and the mixed slurry is stirred and transmitted upward; after the stirring and mixing is completed, the first motor 3 is turned off to stop the rotating shaft 18, the rotating drum 17 continues to rotate, the valve 12 is opened, and the mixed slurry is discharged from the discharge pipe 13, and the second motor 14 is turned off after the discharge is completed.

In the above scheme, the cooperation of the second stirring blade 10 and the scraper 8 can effectively prevent the mixed slurry from adhering to the reactor cover 6 and the inner wall of the reactor tank 7, and when discharging, the scraper 8 and the second stirring blade 10 not only improve the efficiency of discharging, but also reduce the residual mixed slurry in the reactor tank 7. Through the cooperation of the first stirring blade 9 and the second stirring blade 10, the mixed slurry forms a circular movement with the edge downward and the center upward when stirring, so that the mixed slurry is mixed more evenly, and the product quality and stirring rate are improved.

Claims (9)

1. The utility model provides a mixed slurry agitator tank, includes vertical reation kettle jar (7) of setting, its characterized in that: the top of the reaction kettle tank (7) is provided with a reaction kettle cover (6), the inside of the reaction kettle tank (7) is of a hollow columnar structure, a rotating shaft (18) is arranged in the vertical center position, the upper end of the rotating shaft (18) penetrates through the reaction kettle cover (6) and then is connected with a first driving component for driving the rotating shaft to rotate, the bottom of the rotating shaft (18) is rotationally connected with the bottom of the reaction kettle tank (7), and a plurality of first stirring blades (9) of spiral structures are fixed on the rotating shaft (18);

The reaction kettle tank (7) on the upper side and the lower side of the first stirring vane (9) is internally and independently provided with a rotating cylinder (17), the rotating cylinder (17) is of a cylindrical structure which is vertically communicated, the rotating cylinder (17) on the upper side is sleeved on the upper part of a rotating shaft (18) and is connected with the rotating shaft (18) in a rotating fit manner, the rotating cylinder (17) on the lower side is sleeved on the lower part of the rotating shaft (18) and is in a rotating fit manner with the rotating shaft (18), the lower end of the rotating cylinder (17) on the lower side penetrates through the bottom wall of the reaction kettle tank (7) and is connected with a second driving component which drives the rotating cylinder (17) to rotate, a plurality of second stirring vanes (10) which are of spiral structures are independently arranged in the reaction kettle tank (7), the upper end of the second stirring vane (10) is connected with the rotating cylinder (17) on the upper side, the lower end of the second stirring vane (10) is connected with the rotating cylinder (17) on the lower side, one face of the second stirring vane (10) facing the outer side is fixedly provided with a scraping plate (8) which is in a structure, and the scraping plate (8) which is in clearance fit with the top wall and the strip-shaped inner side wall (7) of the reaction kettle tank;

the first stirring blade (9) is arranged on the inner side of the second stirring blade (10) and does not interfere with each other during rotation.

2. The mixed slurry stirred tank of claim 1 wherein: the first driving assembly comprises a first motor (3), a power output end of the first motor (3) is connected with a rotating shaft (18) through a coupler (4), and the first motor (3) is installed on the reaction kettle cover (6) through a first installation frame (5).

3. The mixed slurry stirred tank of claim 2, wherein: the second driving assembly comprises a second motor (14), the power output end of the second motor (14) is connected with a rotating cylinder (17) positioned at the lower side, and the second motor (14) is installed at the bottom of the reaction kettle tank (7) through a second installation frame (15).

4. A mixed slurry stirred tank as claimed in claim 3, wherein: the reaction kettle cover (6) is provided with a feed inlet (19), the feed end of the feed inlet (19) is connected with a feed pipe (1), and the top of the feed pipe (1) is covered with an end cover (2).

5. The mixed slurry stirred tank of claim 4 wherein: the bottom of the reaction kettle tank (7) is provided with a discharge port (11), the discharge end of the discharge port (11) is connected with a discharge pipe (13), and a valve (12) is arranged on the discharge pipe (13).

6. The mixed slurry stirred tank of claim 5, wherein: the reaction kettle cover (6) is provided with a first through hole (20) which is communicated up and down and corresponds to the rotating shaft (18), and the rotating shaft (18) and the first through hole (20) are arranged in a rotary dynamic seal mode.

7. The mixed slurry stirred tank of claim 6 wherein: the bottom of the reaction kettle tank (7) is provided with a second through hole (21) which is communicated with the inside and the outside corresponding to the rotary barrel (17), and the rotary barrel (17) and the second through hole (21) are in rotary dynamic seal arrangement.

8. The mixed slurry stirred tank of claim 7, wherein: at least three supporting legs (16) for supporting the reaction kettle tank (7) are arranged at the bottom of the reaction kettle tank (7).

9. The mixed slurry stirred tank of claim 8, wherein: the top of the reaction kettle tank (7) is provided with an opening, and the reaction kettle cover (6) is covered at the opening.