Mixing device for preparing polyanionic cellulose (PAC)

Abstract

The utility model discloses a mixing device for preparing PAC (polyanionic cellulose), which comprises a mixing kettle body for preparing PAC and a top cover, the top cover is mounted at the top of the mixing kettle body, feed ports are arranged on two sides of the mixing kettle body, a motor is mounted at the top of the top cover, a stirring part is mounted on a rotating shaft of the motor, and the stirring part is mounted on the rotating shaft of the motor. The stirring part extends into the mixing kettle body, a threaded hole is formed in the top cover, a threaded cover is in threaded connection with the threaded hole, and the threaded hole can also be in threaded connection with a water supply mechanism. According to the mixing device for preparing the polyanionic cellulose PAC, by arranging the mixing kettle body and the top cover which are of a sealed structure, the polyanionic cellulose is not prone to escaping into the air during mixing, pollution of polyanionic cellulose dust to the production environment is reduced, and safety and health of production personnel are guaranteed; through the arrangement of the threaded hole, the threaded cover and the water supply mechanism, the interior of the mixing kettle body can be conveniently cleaned without opening the interior of the mixing kettle body, the dissipation of polyanionic cellulose (PAC) dust is prevented, and the cleaning difficulty is also greatly reduced.

Description

Technical Field

[0001] The utility model relates to the field of polyanionic cellulose preparation equipment, in particular to a mixing device used for preparing polyanionic cellulose PAC. Background Art

[0002] Polyanionic cellulose, referred to as PAC, is usually made from natural cellulose or wood cellulose through chemical modification, and a large number of anionic groups are introduced during the treatment process. The introduction of these anionic groups makes cellulose exhibit good solubility and dispersibility in water, and also gives cellulose unique properties, such as adsorption, gelation, thickening, etc.

[0003] Polyanionic cellulose has a wide range of industrial applications, especially in the fields of textiles, papermaking, food, and medicine. In the textile industry, it is often used as a spinning aid to improve the uniformity of spinning and the adhesion of fibers. In the papermaking industry, it can be used as a thickener and humectant for papermaking slurry to improve the rheological properties of the papermaking process. In the food industry, polyanionic cellulose is often used as a thickener, stabilizer, and gelling agent for the preparation of various foods. In the pharmaceutical field, it is also widely used in the coating of tablets and the stabilization of oral suspensions.

[0004] The Chinese patent with the announcement number CN206266473U discloses a granular polyanionic cellulose production device, which includes a rake dryer, a crusher, an inclined conveyor belt, a granulator, a fluidized bed and a pulverizer. The upper end of the rake dryer is provided with a feed port, the lower end of the rake dryer is connected to the crusher, the crusher is arranged above the lower end of the conveyor belt, the lower end of the conveyor belt is provided with a granulator, the granulator is connected to the fluidized bed, and the fluidized bed is connected to the pulverizer. When using the utility model, the material and water are fully mixed and uniformly in the rake machine, the material is crushed by the crusher when discharging, and sent to the granulator via the conveyor belt. The material is extruded and granulated and cut into large wet granules, and finally dried in the fluidized bed and crushed into small particles by a pulverizer to become the final product. The entire production process does not generate dust, and the prepared granular product does not generate dust during packaging and transportation, which is very environmentally friendly.

[0005] It can be seen from the above application that the existing mixing device for preparing polyanionic cellulose PAC, since polyanionic cellulose PAC belongs to the category of chemicals, in terms of the safe use and handling of chemicals, it is necessary to strengthen the safety management of the production site to ensure the safety and health of production personnel. Therefore, strict protection must be carried out during production and preparation. If the concentration of polyanionic cellulose dust in the air is too high, or there is improper operation during the manufacturing process, the dust may cause respiratory irritation to the human body. In order to reduce the escape of polyanionic cellulose dust into the air during the production process, a mixing device for preparing polyanionic cellulose PAC is proposed. Utility Model Content

[0006] The utility model aims to provide a mixing device for preparing polyanionic cellulose PAC. By arranging a mixing kettle body and a top cover with a sealing structure, the polyanionic cellulose PAC is not easy to escape into the air during mixing, thereby reducing the pollution of the production environment by the polyanionic cellulose PAC dust and ensuring the safety and health of production personnel. By arranging a threaded hole, cooperating with a threaded cover and a water supply mechanism, the inside of the mixing kettle body can be easily cleaned without opening the inside of the mixing kettle body, thereby preventing the polyanionic cellulose PAC dust from escaping and greatly reducing the difficulty of cleaning.

[0007] In order to achieve the above-mentioned purpose, the main technical scheme adopted by the utility model is: a mixing device for preparing polyanionic cellulose PAC, comprising: a mixing kettle body and a top cover for preparing polyanionic cellulose PAC, the top cover is installed on the top of the mixing kettle body, both sides of the mixing kettle body are provided with feed ports, the feed ports are of a funnel-shaped structure, the top of the feed ports are covered with a sealing cover, a leakage hole is opened at the bottom of the mixing kettle body, a discharge valve is rotatably connected to the leakage hole, a plurality of supporting legs are installed on the outside of the mixing kettle body, a motor is installed on the top of the top cover, a stirring member is installed on the rotating shaft of the motor, the stirring member extends inside the mixing kettle body, a threaded hole is opened on the top cover, a threaded cover is threadedly connected to the threaded hole, and a water supply mechanism can also be threadedly connected to the threaded hole.

[0008] Preferably, the water supply mechanism includes a water pipe connector, and a water inlet and a water outlet are respectively provided at both ends of the water pipe connector, the water inlet can be connected to a water pipe, the water outlet is rotatably connected to the water pipe connector, the surface of the water outlet is provided with a thread, and the water outlet can be threadedly connected to the threaded hole.

[0009] Preferably, a nozzle is installed on the water outlet, and a mesh plate is installed between the water outlet and the nozzle.

[0010] Preferably, the discharge valve is an electrically controlled valve.

[0011] Preferably, one side of the top cover is rotatably connected to one side of the mixing kettle body via a rotating shaft, and a pull rod is fixedly mounted on one side of the top cover away from the rotating shaft.

[0012] Preferably, a rubber pad is provided on the top of the supporting leg, and the rubber pad is between the mixing kettle body and the supporting leg.

[0013] Preferably, anti-slip foot covers are installed at the bottom of the supporting legs.

[0014] Preferably, a cross bar is welded between the plurality of support legs.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The mixing device for preparing polyanionic cellulose PAC can prevent the polyanionic cellulose PAC from escaping into the air during mixing by providing a mixing kettle body and a top cover with a sealing structure, thereby reducing the pollution of the production environment by the polyanionic cellulose PAC dust and ensuring the safety and health of production personnel; and can facilitate the cleaning of the interior of the mixing kettle body by providing a threaded hole, cooperating with a threaded cover and a water supply mechanism, without having to open the interior of the mixing kettle body, thereby preventing the polyanionic cellulose PAC dust from escaping and greatly reducing the difficulty of cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view schematic diagram of a mixing device for preparing polyanionic cellulose PAC according to the utility model;

[0018] Figure 2 It is a side cross-sectional schematic diagram of a mixing device for preparing polyanionic cellulose PAC according to the utility model;

[0019] Figure 3 It is a side cross-sectional schematic diagram of the mixing device for preparing polyanionic cellulose PAC of the utility model in a cleaning state;

[0020] Figure 4 It is a cross-sectional schematic diagram of a water supply mechanism in a mixing device for preparing polyanionic cellulose PAC according to the utility model.

[0021] In the figure: 10, mixing kettle body; 11, feed inlet; 111, sealing cover; 12, discharge valve; 13, supporting legs; 131, rubber pads; 132, non-slip foot covers; 133, cross bar; 20, top cover; 21, threaded holes; 211, threaded cover; 22, water pipe connector; 221, water inlet; 222, water outlet; 223, nozzle; 224, mesh plate; 225, handle; 23, pull rod; 30, motor; 31, stirring element. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 4 A mixing device for preparing polyanionic cellulose PAC comprises: a mixing kettle body 10 and a top cover 20 for preparing polyanionic cellulose PAC, wherein the top cover 20 is mounted on the top of the mixing kettle body 10, one side of the top cover 20 is rotatably connected to one side of the mixing kettle body 10 through a rotating shaft, a pull rod 23 is fixedly mounted on the side of the top cover 20 away from the rotating shaft, and the top cover 20 can be flipped open, and when the top cover 20 is flipped, a stirring member 31 will not touch the mixing kettle body 10, which is convenient for internal maintenance or replacement of the stirring member 31, and both sides of the mixing kettle body 10 are provided with a feed port 11, and the feed port 11 is a funnel-shaped structure. The top of the material port 11 is covered with a sealing cover 111, a leakage hole is opened at the bottom of the mixing kettle body 10, and a discharge valve 12 is rotatably connected to the leakage hole. The discharge valve 12 is an electrically controlled valve to reduce the contact of production personnel with polyanionic cellulose PAC dust. Several support legs 13 are installed on the outside of the mixing kettle body 10, and rubber pads 131 are provided on the top of the support legs 13. The rubber pads 131 are between the mixing kettle body 10 and the support legs 13 to reduce shock when the stirring element 31 is running. Anti-skid foot covers 132 are installed at the bottom of the support legs 13, and cross bars 133 are welded between the several support legs 13 to improve the stability of the support legs 13;

[0024] A motor 30 is installed on the top of the top cover 20, and a stirring member 31 is installed on the rotating shaft of the motor 30. The stirring member 31 is a multi-stage wave-shaped stirring member, and the stirring member 31 extends inside the mixing kettle body 10. A threaded hole 21 is opened on the top cover 20, and a threaded cover 211 is threadedly connected to the threaded hole 21. The threaded hole 21 can also be threadedly connected to a water supply mechanism, and the water supply mechanism includes a water pipe connector 22. The two ends of the water pipe connector 22 are respectively provided with a water inlet 221 and a water outlet 222, the water inlet 221 can be connected to a water pipe, and the water outlet 222 is rotatably connected to the water pipe connector 22, and the surface of the water outlet 222 is provided with threads, and the water outlet 222 can be threadedly connected to the threaded hole 21. A nozzle 223 is installed on the water outlet 222, and the nozzle 223 includes but is not limited to a fan-shaped diffusion nozzle and a booster nozzle. A mesh plate 224 is installed between the water outlet 222 and the nozzle 223.

[0025] Structural principle:

[0026] like Figure 1 , Figure 2As shown, when in use, first close all openings on the mixing kettle body 10 and the top cover 20, open the cover 111 when adding raw materials, add the prepared raw materials from the feed port 11, close the cover 111 after adding the raw materials, start the motor 30, rotate the stirring member 31, stir the raw materials to mix, and after mixing, open the discharge valve 12 to receive the mixed polyanionic cellulose PAC;

[0027] like Figure 3 , Figure 4 As shown, when cleaning the inside of the mixing kettle body 10, open the threaded cover 211, install the water supply mechanism, connect the water pipe and the inside of the mixing kettle body 10, and supply water to the inside of the mixing kettle body 10, turn on the motor 30, and the stirring element 31 can evenly supply water to clean the inside of the mixing kettle body 10.

[0028] In summary, the mixing device for preparing polyanionic cellulose PAC, by providing a mixing kettle body 10 and a top cover 20 with a sealing structure, can prevent the polyanionic cellulose PAC from escaping into the air during mixing, reduce the pollution of the production environment by the polyanionic cellulose PAC dust, and ensure the safety and health of production personnel; by providing a threaded hole 21, in conjunction with a threaded cover 211 and a water supply mechanism, the interior of the mixing kettle body 10 can be easily cleaned without opening the interior of the mixing kettle body 10, thereby preventing the polyanionic cellulose PAC dust from escaping and greatly reducing the difficulty of cleaning.

[0029] Parts not involved in the present invention are the same as the prior art or can be implemented by the prior art. Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A mixing device for preparing polyanionic cellulose PAC, characterized in that: include: A mixing kettle body (10) and a top cover (20) for preparing polyanionic cellulose (PAC), wherein the top cover (20) is installed on the top of the mixing kettle body (10), and both sides of the mixing kettle body (10) are provided with feed ports (11), the feed ports (11) are of a funnel-shaped structure, and the top of the feed ports (11) is covered with a sealing cover (111), and a leakage hole is opened at the bottom of the mixing kettle body (10), and a discharge valve (12) is rotatably connected to the leakage hole, and the mixing kettle body (10) is provided with a discharge valve (12) at the bottom of the mixing kettle body (10). A plurality of supporting legs (13) are installed on the outside of the mixing kettle body (10); a motor (30) is installed on the top of the top cover (20); a stirring member (31) is installed on the rotating shaft of the motor (30); the stirring member (31) extends inside the mixing kettle body (10); a threaded hole (21) is opened on the top cover (20); a threaded cover (211) is threadedly connected to the threaded hole (21); and a water supply mechanism can also be threadedly connected to the threaded hole (21).

2. A mixing device for preparing polyanionic cellulose PAC according to claim 1, characterized in that: The water supply mechanism comprises a water pipe connector (22), wherein two ends of the water pipe connector (22) are respectively provided with a water inlet (221) and a water outlet (222), wherein the water inlet (221) can be connected to a water pipe, and the water outlet (222) is rotatably connected to the water pipe connector (22), and a thread is provided on the surface of the water outlet (222), and the water outlet (222) can be threadedly connected to the threaded hole (21).

3. A mixing device for preparing polyanionic cellulose PAC according to claim 2, characterized in that: A nozzle (223) is installed on the water outlet (222), and a mesh plate (224) is installed between the water outlet (222) and the nozzle (223).

4. A mixing device for preparing polyanionic cellulose PAC according to claim 1, characterized in that: The discharge valve (12) is an electrically controlled valve.

5. A mixing device for preparing polyanionic cellulose PAC according to claim 1, characterized in that: One side of the top cover (20) is rotatably connected to one side of the mixing kettle body (10) via a rotating shaft, and a pull rod (23) is fixedly mounted on the side of the top cover (20) away from the rotating shaft.

6. A mixing device for preparing polyanionic cellulose PAC according to claim 1, characterized in that: A rubber pad (131) is provided on the top of the supporting leg (13), and the rubber pad (131) is between the mixing kettle body (10) and the supporting leg (13).

7. A mixing device for preparing polyanionic cellulose PAC according to claim 6, characterized in that: An anti-skid foot cover (132) is installed at the bottom of the supporting leg (13).

8. A mixing device for preparing polyanionic cellulose PAC according to claim 7, characterized in that: A cross bar (133) is welded between the plurality of support legs (13).

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