Quantitative reaction device for calcium chloride solution production
By designing a quantitative reaction device for the production of calcium chloride solution, the problem of existing equipment being unable to control the feed quantity and insufficient reaction is solved, precise control of the reaction and efficient stirring are achieved, and production efficiency is improved.
Patent Information
- Application Number
- CN202421126308.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-05-22
AI Technical Summary
The existing calcium chloride solution production equipment cannot control the feed volume, resulting in insufficient reaction and it is difficult to unify the addition ratio of hydrochloric acid solution and calcium hydroxide.
A quantitative reaction device is designed, including a quantitative mechanism and a stirring mechanism. The quantitative mechanism realizes quantitative control through the coordination of the electric telescopic rod and the triangle plate; the stirring mechanism drives the stirring blades to stir through the second motor and bevel gear system.
Through the precise control of the quantitative mechanism, the accuracy and working efficiency of the reaction are improved; through the efficient stirring of the stirring mechanism, the reaction speed is accelerated and the reaction efficiency is improved.
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Figure CN222658653U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of calcium chloride solution production, in particular to a quantitative reaction device used for the production of calcium chloride solution. Background Art
[0002] Calcium chloride, a salt composed of chlorine and calcium, has the chemical formula CaCl2. It is slightly bitter. It is a typical ionic halide, white, hard pieces or granules at room temperature. Its common applications include brine used in refrigeration equipment, road deicing agents and desiccants. Because it easily absorbs moisture in the air and deliquesces, anhydrous calcium chloride must be stored in sealed containers. Calcium chloride and its hydrates and solutions have important application values in food manufacturing, building materials, medicine and biology.
[0003] Compared with the prior art: since the equipment cannot control the feed amount during use, it cannot control the amount, resulting in too much or too little material, resulting in insufficient reaction, making it difficult to achieve a uniform ratio of hydrochloric acid solution and calcium hydroxide added each time.
[0004] Therefore, a quantitative reaction device for the production of calcium chloride solution is proposed. Utility Model Content
[0005] The utility model aims to provide a quantitative reaction device for producing calcium chloride solution to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quantitative reaction device for the production of calcium chloride solution, comprising: a foot, a reaction box is arranged on the top surface of the foot, the bottom surface of the reaction box is fixedly connected to the top surface of the foot, a feed port is arranged on the top surface of the reaction box, the feed port extends through and extends to the inner side surface of the reaction box, the surface of the feed port is fixedly connected to the inner wall of the reaction box, a quantitative mechanism and a stirring mechanism are arranged on the inner side surface of the reaction box; the quantitative mechanism comprises a quantitative part and a pushing part; the pushing part is located above the quantitative part; the stirring mechanism comprises a driving part and a stirring part; the stirring part is located on the outer side surface of the driving part.
[0007] Preferably, a fixed plate is provided on the inner side of the reaction box, the outer side of the fixed plate is fixedly connected to the inner side of the reaction box, a through groove is provided on the top surface of the fixed plate, a discharge port is provided on the right side of the reaction box, the discharge port extends through and extends to the inner side of the reaction box, the surface of the discharge port is fixedly connected to the right inner wall of the reaction box, a pull plate is provided on the left side of the discharge port, the pull plate extends through and extends to the left side of the reaction box, the bottom surface of the pull plate is movably connected to the top surface of the fixed plate, and the surface of the pull plate is slidably connected to the left inner wall of the reaction box.
[0008] Preferably, the quantitative part includes an electric telescopic rod, the bottom surface of the electric telescopic rod is fixedly connected to the top surface of the fixed plate, the output end surface of the electric telescopic rod is provided with a U-shaped plate, the bottom surface of the U-shaped plate is fixedly connected to the output end surface of the electric telescopic rod, the inner side surface of the U-shaped plate is provided with a triangular plate, the right side surface of the triangular plate is movably connected to the inner side surface of the U-shaped plate, the inner side surface of the triangular plate is provided with a light rod, the surface of the light rod is movably connected to the inner wall of the triangular plate, the rear end surface of the light rod is rotatably connected to the inner rear side surface of the reaction box through a bearing seat, a door plate is provided above the light rod, the inner side surface of the door plate is movably connected to the upper outer side of the triangular plate, the top surface of the door plate is provided with a fixed block, the bottom surface of the fixed block is fixedly connected to the top surface of the door plate, and the triangular plate is driven to move by the electric telescopic rod.
[0009] Preferably, two slides are provided on the outer side of the fixed block, two slide rods are provided on the inner sides of the two slides, the outer end faces of the two slide rods are fixedly connected to the inner side of the reaction box, the two slide rod surfaces are slidably connected to the two slides, two quantitative plates are provided on the inner sides of the two slides, the outer sides of the two quantitative plates are fixedly connected to the inner sides of the two slides, and the slides move on the slide rods, thereby driving the quantitative plates.
[0010] Preferably, the pushing part includes a first motor, a right side surface of the first motor is fixedly connected to the right side surface of the inner side of the reaction box, a screw rod is provided on the output end surface of the first motor, the right end surface of the screw rod is fixedly connected to the output end surface of the first motor, the left end surface of the screw rod is rotatably connected to the left side surface of the inner side of the reaction box through a second bearing seat, a straight plate is sleeved on the surface of the screw rod, the inner wall of the straight plate is threadedly connected to the surface of the screw rod, a sliding seat is provided on the bottom surface of the straight plate, the top surface of the sliding seat is fixedly connected to the bottom surface of the straight plate, a sliding rail is provided on the inner side surface of the sliding seat, the bottom surface of the sliding rail is fixedly connected to the top surface of the fixed plate, the surface of the sliding rail is slidably connected to the inner side surface of the sliding seat, and the straight plate is driven by the screw rod.
[0011] Preferably, a push plate is provided on the front side of the slide rail, and the right side surface of the push plate is fixedly connected to the left side surface of the straight plate.
[0012] Preferably, the driving part includes a box body, the bottom surface of the box body is fixedly connected to the inner bottom surface of the reaction box, the inner side surface of the box body is provided with a second motor, the rear side surface of the second motor is fixedly connected to the inner rear side surface of the box body, the output end surface of the second motor is provided with a first bevel gear, the rear side surface of the first bevel gear is fixedly connected to the output end surface of the second motor, and the first bevel gear is driven by the second motor.
[0013] Preferably, the stirring part includes two second bevel gears, the outer end surfaces of the two second bevel gears are meshed with the outer end surface of the first bevel gear, two guide rods are arranged on the outer sides of the two second bevel gears, the inner end surfaces of the two guide rods are fixedly connected to the outer side surfaces of the two second bevel gears, the two guide rods extend through to the outside of the box body, the surfaces of the two guide rods are rotatably connected to the inner wall of the box body through bearing seat three, the outer end surfaces of the two guide rods are rotatably connected to the inner side surface of the reaction box through bearing seat four, the surfaces of the two guide rods are sleeved with four stirring blades, the inner sides of the four stirring blades are fixedly connected to the surfaces of the two guide rods, and the guide rods are driven by the second bevel gears so that the guide rods drive the stirring blades.
[0014] Compared with the prior art, the utility model has the following beneficial effects: the quantitative reaction device for producing calcium chloride solution,
[0015] 1) The quantitative mechanism utilizes the electric telescopic rod in the quantitative part to drive the triangular plate to move, so that the triangular plate drives the fixed block to move, so that the quantitative plate performs quantitative measurement under the action of the fixed block, thereby controlling the dosage, and the first motor drives the screw rod to rotate, so that the screw rod drives the straight plate, so that the straight plate drives the push plate to move, so as to feed the material regularly, so as to react, thereby improving the reaction accuracy, thereby improving the work efficiency;
[0016] 2) The stirring mechanism utilizes the second motor in the driving part, so that the first bevel gear is driven to rotate under the action of the second motor, so that the first bevel gear drives the second bevel gear to rotate, and the second bevel gear drives the stirring blade to rotate, thereby stirring and accelerating the reaction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;
[0018] Figure 2 It is a three-dimensional schematic diagram of the overall cross-section of the structure of the utility model;
[0019] Figure 3 This is a three-dimensional schematic diagram of the quantitative structure of the utility model at the triangle plate;
[0020] Figure 4 This is a three-dimensional schematic diagram of the quantitative structure screw rod of the utility model;
[0021] Figure 5 It is a three-dimensional schematic diagram of the stirring structure of the utility model.
[0022] In the figure: 1 a foot pad, 2 a reaction box, 3 a feed port, 4 a fixed plate, 5 a discharge port, 6 a quantitative mechanism, 61 a quantitative portion, 62 a pushing portion, 611 an electric telescopic rod, 612 a triangular plate, 613 a smooth rod, 614 a door plate, 615 a fixed block, 616 a slide plate, 617 a slide bar, 618 a quantitative plate, 621 a first motor, 622 a lead screw, 623 a straight plate, 624 a slide seat, 625 a slide rail, 626 a pushing plate, 7 a stirring mechanism, 71 a driving portion, 72 a stirring portion, 711 a box body, 712 a second motor, 713 a first bevel gear, 721 a second bevel gear, 722 a guide rod, 723 a stirring blade, 8 a pulling plate. DETAILED DESCRIPTION
[0023] 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.
[0024] Embodiment 1
[0025] See also Figure 1-Figure 4 The utility model provides a technical solution: a quantitative reaction device for the production of calcium chloride solution, comprising: a foot pad 1, a reaction box 2 is arranged on the top surface of the foot pad 1, the bottom surface of the reaction box 2 is fixedly connected to the top surface of the foot pad 1, a feed port 3 is arranged on the top surface of the reaction box 2, the feed port 3 extends through and extends to the inner side surface of the reaction box 2, the surface of the feed port 3 is fixedly connected to the inner wall of the reaction box 2, and a quantitative mechanism 6 and a stirring mechanism 7 are arranged on the inner side surface of the reaction box 2; the quantitative mechanism 6 comprises a quantitative part 61 and a pushing part 62; the pushing part 62 is located above the quantitative part 61; the stirring mechanism 7 comprises a driving part 71 and a stirring part 72; the stirring part 72 is located on the outer side surface of the driving part 71.
[0026] A fixed plate 4 is provided on the inner side of the reaction box 2, and the outer side of the fixed plate 4 is fixedly connected to the inner side of the reaction box 2. A through groove is provided on the top surface of the fixed plate 4. A discharge port 5 is provided on the right side of the reaction box 2, and the discharge port 5 extends through and extends to the inner side of the reaction box 2. The surface of the discharge port 5 is fixedly connected to the right inner wall of the reaction box 2. A pull plate 8 is provided on the left side of the discharge port 5, and the pull plate 8 extends through and extends to the left side of the reaction box 2. The bottom surface of the pull plate 8 is movably connected to the top surface of the fixed plate 4, and the surface of the pull plate 8 is slidably connected to the left inner wall of the reaction box 2.
[0027] The quantitative part 61 includes an electric telescopic rod 611, the bottom surface of the electric telescopic rod 611 is fixedly connected to the top surface of the fixed plate 4, the output end surface of the electric telescopic rod 611 is provided with a U-shaped plate, the bottom surface of the U-shaped plate is fixedly connected to the output end surface of the electric telescopic rod 611, the inner side surface of the U-shaped plate is provided with a triangular plate 612, the right side surface of the triangular plate 612 is movably connected to the inner side surface of the U-shaped plate, the inner side surface of the triangular plate 612 is provided with a light rod 613, the surface of the light rod 613 is movably connected to the inner wall of the triangular plate 612, the rear end surface of the light rod 613 is rotatably connected to the inner rear side surface of the reaction box 2 through a bearing seat 1, a door plate 614 is provided above the light rod 613, the inner side surface of the door plate 614 is movably connected to the upper outer side of the triangular plate 612, the top surface of the door plate 614 is provided with a fixed block 615, and the bottom surface of the fixed block 615 is fixedly connected to the top surface of the door plate 614.
[0028] Two slides 616 are arranged on the outer side of the fixed block 615, and two slide rods 617 are arranged on the inner side of the two slides 616. The outer end faces of the two slide rods 617 are fixedly connected to the inner side of the reaction box 2, and the surfaces of the two slide rods 617 are slidably connected to the two slides 616. Two quantitative plates 618 are arranged on the inner side of the two slides 616, and the outer sides of the two quantitative plates 618 are fixedly connected to the inner sides of the two slides 616.
[0029] The pushing part 62 includes a first motor 621, the right side surface of the first motor 621 is fixedly connected to the right side surface of the inner side of the reaction box 2, the output end surface of the first motor 621 is provided with a screw rod 622, the right end surface of the screw rod 622 is fixedly connected to the output end surface of the first motor 621, the left end surface of the screw rod 622 is rotatably connected to the inner left side surface of the reaction box 2 through a second bearing seat, a straight plate 623 is sleeved on the surface of the screw rod 622, the inner wall of the straight plate 623 is threadedly connected to the surface of the screw rod 622, a slide seat 624 is provided on the bottom surface of the straight plate 623, the top surface of the slide seat 624 is fixedly connected to the bottom surface of the straight plate 623, a slide rail 625 is provided on the inner side surface of the slide seat 624, the bottom surface of the slide rail 625 is fixedly connected to the top surface of the fixed plate 4, and the surface of the slide rail 625 is slidably connected to the inner side surface of the slide seat 624.
[0030] A push plate 626 is provided at the front side of the slide rail 625 , and the right side surface of the push plate 626 is fixedly connected to the left side surface of the straight plate 623 .
[0031] Furthermore, in this embodiment, the quantitative mechanism 6 utilizes the electric telescopic rod 611 in the quantitative part 61 so that the electric telescopic rod 611 drives the triangular plate 612 to move, thereby driving the door plate 614 under the action of the triangular plate 612, so that the fixed block 615 moves under the action of the door plate 614, so that the fixed block 615 drives the quantitative plate 618 to slide on the inner wall of the slide plate 616 under the action of the slide rod 617, so as to control the amount, and the first motor 621 in the pushing part 62 drives the screw rod 622 to rotate through the first motor 621, so that the screw rod 622 rotates and drives the straight plate 623 to slide on the surface of the slide rail 625 under the action of the slide seat 624, so that the straight plate 623 drives the pushing plate 626 to push the material;
[0032] Furthermore, in this embodiment, the quantitative mechanism 6 utilizes the electric telescopic rod 611 in the quantitative part 61 so that the electric telescopic rod 611 drives the triangular plate 612 to move, so that the triangular plate 612 drives the fixed block 615 to move, so that the quantitative plate 618 is quantitatively measured under the action of the fixed block 615, thereby controlling the dosage, and the first motor 621 drives the screw rod 622 to rotate, so that the screw rod 622 drives the straight plate 623, so that the straight plate 623 drives the push plate 626 to move, so as to feed it regularly, so as to react, thereby improving the reaction accuracy, thereby improving the work efficiency;
[0033] Embodiment 2
[0034] See also Figure 1 , Figure 2 , Figure 5 , and on the basis of Example 1, it is further obtained that: the driving part 71 includes a box body 711, the bottom surface of the box body 711 is fixedly connected to the inner bottom surface of the reaction box 2, the inner side surface of the box body 711 is provided with a second motor 712, the rear side surface of the second motor 712 is fixedly connected to the inner rear side surface of the box body 711, the output end surface of the second motor 712 is provided with a first bevel gear 713, and the rear side surface of the first bevel gear 713 is fixedly connected to the output end surface of the second motor 712.
[0035] The stirring portion 72 includes two second bevel gears 721, and the outer end surfaces of the two second bevel gears 721 are meshed and connected with the outer end surface of the first bevel gear 713. Two guide rods 722 are arranged on the outer side of the two second bevel gears 721. The inner end surfaces of the two guide rods 722 are fixedly connected to the outer side surfaces of the two second bevel gears 721. The two guide rods 722 extend through and extend to the outside of the box body 711. The surfaces of the two guide rods 722 are rotatably connected to the inner wall of the box body 711 through bearing seat three, and the outer end surfaces of the two guide rods 722 are rotatably connected to the inner side surface of the reaction box 2 through bearing seat four. Four stirring blades 723 are sleeved on the surfaces of the two guide rods 722, and the inner sides of the four stirring blades 723 are fixedly connected to the surfaces of the two guide rods 722.
[0036] Furthermore, in this embodiment, the stirring mechanism 7 utilizes the second motor 712 in the driving part 71, so that the first bevel gear 713 is driven to rotate under the action of the second motor 712, so that the second bevel gear 721 is driven to rotate under the rotation of the first bevel gear 713, so that the second bevel gear 721 drives the guide rod 722 to rotate, so that the stirring blade 723 is driven to stir under the rotation of the guide rod 722;
[0037] Furthermore, this embodiment utilizes the second motor 712 in the driving part 71 through the stirring mechanism 7, so that the first bevel gear 713 is driven to rotate under the action of the second motor 712, so that the first bevel gear 713 drives the second bevel gear 721 to rotate, and the second bevel gear 721 drives the stirring blade 723 to rotate, thereby stirring and accelerating the reaction efficiency.
[0038] When in use, the operator feeds the material through the feed port 3, thereby using the electric telescopic rod 611 in the quantitative part 61 through the quantitative mechanism 6, so that the electric telescopic rod 611 drives the triangular plate 612 to move, thereby driving the door plate 614 under the action of the triangular plate 612, so that the fixed block 615 moves under the action of the door plate 614, so that the fixed block 615 drives the quantitative plate 618 to slide on the inner wall of the slide plate 616 under the action of the sliding rod 617, so as to control the amount, and the first motor 621 in the pushing part 62 drives the screw rod 622 to rotate through the first motor 621, so that the straight plate 623 is driven on the slide under the rotation of the screw rod 622. The seat 624 slides on the surface of the slide rail 625, so that the straight plate 623 drives the pushing plate 626 to push the material, so that the pulling plate 8 draws it out, so that it flows into the reaction box 2 under the fixed plate 4, and then the second motor 712 in the driving part 71 is used by the stirring mechanism 7, so that the first bevel gear 713 is driven to rotate under the action of the second motor 712, so that the second bevel gear 721 is driven to rotate under the rotation of the first bevel gear 713, so that the second bevel gear 721 drives the guide rod 722 to rotate, so that the stirring blade 723 is driven to stir under the rotation of the guide rod 722, so that it is discharged through the discharge port 5 after the stirring is completed.
[0039] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A quantitative reaction device for producing calcium chloride solution, comprising a foot (1), characterized in that: A reaction box (2) is arranged on the top surface of the foot pad (1); the bottom surface of the reaction box (2) is fixedly connected to the top surface of the foot pad (1); a feed port (3) is arranged on the top surface of the reaction box (2); the feed port (3) extends through the inner side surface of the reaction box (2); the surface of the feed port (3) is fixedly connected to the inner wall of the reaction box (2); and a quantitative mechanism (6) and a stirring mechanism (7) are arranged on the inner side surface of the reaction box (2); The quantitative mechanism (6) comprises a quantitative portion (61) and a pushing portion (62); The pushing portion (62) is located above the quantitative portion (61); The stirring mechanism (7) comprises a driving part (71) and a stirring part (72); The stirring portion (72) is located on the outer side of the driving portion (71); The quantitative portion (61) comprises an electric telescopic rod (611), the bottom surface of the electric telescopic rod (611) is fixedly connected to the top surface of the fixed plate (4), the output end surface of the electric telescopic rod (611) is provided with a U-shaped plate, the bottom surface of the U-shaped plate is fixedly connected to the output end surface of the electric telescopic rod (611), the inner side surface of the U-shaped plate is provided with a triangular plate (612), the right side surface of the triangular plate (612) is movably connected to the inner side surface of the U-shaped plate, and the inner side surface of the triangular plate (612) is provided with a polished rod (613), The surface of the polished rod (613) is movably connected to the inner wall of the triangular plate (612); the rear end surface of the polished rod (613) is rotatably connected to the inner rear side surface of the reaction box (2) through a bearing seat; a door-shaped plate (614) is arranged above the polished rod (613); the inner side surface of the door-shaped plate (614) is movably connected to the upper outer side of the triangular plate (612); a fixing block (615) is arranged on the top surface of the door-shaped plate (614); the bottom surface of the fixing block (615) is fixedly connected to the top surface of the door-shaped plate (614); Two slide plates (616) are arranged on the outside of the fixed block (615), and two slide bars (617) are arranged on the inner side surfaces of the two slide plates (616). The outer end surfaces of the two slide bars (617) are fixedly connected to the inner side surfaces of the reaction box (2), and the surfaces of the two slide bars (617) are slidably connected to the two slide plates (616). Two quantitative plates (618) are arranged on the inner side surfaces of the two slide plates (616), and the outer side surfaces of the two quantitative plates (618) are fixedly connected to the inner side surfaces of the two slide plates (616); The pusher (62) comprises a first motor (621), the right side of the first motor (621) is fixedly connected to the right side of the inner side of the reaction box (2), the output end face of the first motor (621) is provided with a screw rod (622), the right end face of the screw rod (622) is fixedly connected to the output end face of the first motor (621), the left end face of the screw rod (622) is rotatably connected to the left side of the inner side of the reaction box (2) through a second bearing seat, and the surface of the screw rod (622) is sleeved with a A straight plate (623), the inner wall of the straight plate (623) is threadedly connected to the surface of the screw rod (622), the bottom surface of the straight plate (623) is provided with a slide seat (624), the top surface of the slide seat (624) is fixedly connected to the bottom surface of the straight plate (623), the inner side surface of the slide seat (624) is provided with a slide rail (625), the bottom surface of the slide rail (625) is fixedly connected to the top surface of the fixed plate (4), and the surface of the slide rail (625) is slidably connected to the inner side surface of the slide seat (624); A push plate (626) is provided on the front side of the slide rail (625), and the right side surface of the push plate (626) is fixedly connected to the left side surface of the straight plate (623).
2. A quantitative reaction device for producing calcium chloride solution according to claim 1, characterized in that: A fixing plate (4) is arranged on the inner side of the reaction box (2), the outer side of the fixing plate (4) is fixedly connected to the inner side of the reaction box (2), a through groove is provided on the top surface of the fixing plate (4), a discharge port (5) is arranged on the right side of the reaction box (2), the discharge port (5) extends through the inner side of the reaction box (2), the surface of the discharge port (5) is fixedly connected to the right inner wall of the reaction box (2), a pull plate (8) is arranged on the left side of the discharge port (5), the pull plate (8) extends through the left side of the reaction box (2), the bottom surface of the pull plate (8) is movably connected to the top surface of the fixing plate (4), and the surface of the pull plate (8) is slidably connected to the left inner wall of the reaction box (2).
3. A quantitative reaction device for producing calcium chloride solution according to claim 1, characterized in that: The driving part (71) comprises a box body (711), the bottom surface of the box body (711) is fixedly connected to the inner bottom surface of the reaction box (2), the inner side surface of the box body (711) is provided with a second motor (712), the rear side surface of the second motor (712) is fixedly connected to the inner rear side surface of the box body (711), the output end surface of the second motor (712) is provided with a first bevel gear (713), and the rear side surface of the first bevel gear (713) is fixedly connected to the output end surface of the second motor (712).
4. A quantitative reaction device for producing calcium chloride solution according to claim 3, characterized in that: The stirring portion (72) comprises two second bevel gears (721), the outer end surfaces of the two second bevel gears (721) are meshedly connected with the outer end surface of the first bevel gear (713), two guide rods (722) are arranged on the outer sides of the two second bevel gears (721), the inner end surfaces of the two guide rods (722) are fixedly connected with the outer side surfaces of the two second bevel gears (721), the two guide rods (722) extend through and extend to the outer side of the box body (711), the surfaces of the two guide rods (722) are rotatably connected to the inner wall of the box body (711) through bearing seat three, the outer end surfaces of the two guide rods (722) are rotatably connected to the inner side surface of the reaction box (2) through bearing seat four, and four stirring blades (723) are sleeved on the surfaces of the two guide rods (722), and the inner side surfaces of the four stirring blades (723) are fixedly connected to the surfaces of the two guide rods (722).