Variable-frequency stirring device for calcium sulfate superfine fiber vacuum filtration equipment

Abstract

The utility model discloses a variable-frequency stirring device for calcium sulfate superfine fiber vacuum filtration equipment, and relates to the field of calcium sulfate superfine fiber production equipment. A variable-frequency stirring device for calcium sulfate superfine fiber vacuum filtration equipment comprises a reaction kettle, a kettle cover is connected to an opening in the upper end of the reaction kettle, and the variable-frequency stirring device further comprises a driving shaft rod and a variable-frequency motor which is vertically and rotatably connected to the interior of the reaction kettle and fixedly installed on the kettle cover. The stirring speed is flexibly adjusted, the product quality is guaranteed, in the cooling process, according to the actual cooling condition, the stirring speed is reasonably adjusted, heat in mixed liquid is evenly dissipated, it is guaranteed that the temperature of the mixed liquid is stably lowered, and a proper temperature environment is provided for generation of calcium sulfate superfine fibers. The stirring effect is greatly improved, and the quality of calcium sulfate superfine fibers is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of calcium sulfate ultrafine fiber production technology, specifically, it relates to a frequency conversion stirring device for a vacuum filtration equipment for calcium sulfate ultrafine fibers. Background Technology

[0002] In the production of calcium sulfate microfiber, vacuum filtration equipment is one of the key production equipment. As an important component of vacuum filtration equipment, the performance of the stirring device has a direct impact on the production quality and efficiency of calcium sulfate microfiber.

[0003] Currently, most commercially available stirring devices for calcium sulfate microfiber production employ a fixed-speed stirring method. In actual production, calcium sulfate microfiber production is a complex process encompassing multiple stages, such as the chemical reaction stage and the cooling stage. During the chemical reaction stage, different stages of the reaction significantly affect the required stirring intensity and speed of the mixture. In the initial stage, a higher stirring speed is needed to promote sufficient contact between reactants and accelerate the reaction rate. In the later stage, to avoid excessive stirring damaging the structure of the generated calcium sulfate microfiber, the stirring speed needs to be appropriately reduced. During the cooling stage, a suitable stirring speed helps to evenly dissipate heat in the mixture, ensuring a stable temperature drop and providing a suitable temperature environment for the formation of calcium sulfate microfiber. However, existing fixed-speed stirring devices cannot flexibly adjust to the needs of these different production stages and the characteristics of the mixture, resulting in poor stirring effects. This poor stirring effect not only affects the quality of the calcium sulfate microfiber but also reduces production efficiency and increases production costs. Therefore, this invention is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a frequency conversion stirring device for a calcium sulfate ultrafine fiber vacuum filtration device that can overcome or at least partially solve the above problems.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: a variable frequency stirring device for a vacuum filtration equipment for calcium sulfate ultrafine fibers, including a reaction vessel, with a lid connected to the upper opening of the reaction vessel, and further including: a drive shaft, vertically rotatably connected inside the reaction vessel; a variable frequency motor, fixedly installed on the lid, with the output end of the variable frequency motor fixedly connected to the upper end of the drive shaft; and a stirring assembly for stirring the calcium sulfate ultrafine fiber mixture, circumferentially and equidistantly installed on the drive shaft.

[0006] Furthermore, the stirring assembly includes a connecting rod and stirring blades, the stirring blades being fixedly connected to the drive shaft via the connecting rod.

[0007] To facilitate the guidance of the calcium sulfate ultrafine fiber mixture located at the top and bottom of the reactor to the middle position of the reactor for mixing, the stirring assembly is further provided with two stirring blades, which are symmetrically distributed in the reactor and arranged in an inverted V-shape.

[0008] To facilitate the impact on the calcium sulfate ultrafine fiber mixture guided to the middle position by the two stirring blades and further improve the mixing effect of the calcium sulfate ultrafine fiber mixture, the stirring blades are hollow inside. The ends of the two stirring blades that are furthest apart are provided with liquid inlets, and the ends of the two stirring blades that are closest to each other are provided with liquid outlets. The two liquid outlets are arranged opposite each other.

[0009] To facilitate further stirring and mixing of the calcium sulfate ultrafine fiber mixture and to further improve the stirring and mixing effect of the calcium sulfate ultrafine fiber mixture, a support is fixedly connected between the two stirring blades near the liquid outlet, and a stirring fan blade is rotatably connected to the support.

[0010] To facilitate the introduction of the calcium sulfate ultrafine fiber mixture located at the bottom of the reactor into the stirring blades through the inlet, the bottom of the drive shaft is further provided with multiple circumferentially equidistant disturbance plates, which slide against the inner wall of the bottom of the reactor.

[0011] After adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: In the reaction process, the stirring speed can be flexibly adjusted according to different stages of the reaction process. In the early stage of the reaction, the stirring speed is increased to allow the reactants to come into full contact and accelerate the reaction rate. In the later stage of the reaction, the stirring speed is appropriately reduced to avoid excessive stirring from damaging the structure of the generated calcium sulfate ultrafine fibers and to ensure product quality. In the cooling process, the stirring speed is reasonably adjusted according to the actual cooling situation to make the heat in the mixture dissipate evenly and ensure that the temperature of the mixture drops stably, providing a suitable temperature environment for the generation of calcium sulfate ultrafine fibers. Through this flexible stirring speed adjustment method, the stirring effect is greatly improved, the quality of calcium sulfate ultrafine fibers is guaranteed, and the production efficiency is improved, effectively overcoming the drawbacks of traditional stirring devices.

[0012] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0013] In the attached diagram:

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the reaction vessel of this utility model;

[0016] Figure 3 This is a structural schematic diagram of part of this utility model.

[0017] In the diagram: 1. Reactor; 101. Reactor lid; 2. Variable frequency motor; 201. Drive shaft; 202. Connecting rod; 203. Stirring blade; 2031. Liquid inlet; 2032. Liquid outlet; 204. Support; 205. Stirring fan blade; 206. Disturbance plate. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0019] Example 1:

[0020] Reference Figures 1-3 A variable frequency stirring device for a vacuum filtration equipment for calcium sulfate ultrafine fibers includes a reaction vessel 1, with a vessel cover 101 connected to the upper opening of the reaction vessel 1. It also includes a drive shaft 201, a variable frequency motor 2 vertically rotatably connected inside the reaction vessel 1, and fixedly mounted on the vessel cover 101. The output end of the variable frequency motor 2 is fixedly connected to the upper end of the drive shaft 201. A stirring assembly for stirring the calcium sulfate ultrafine fiber mixture is circumferentially and equidistantly mounted on the drive shaft 201.

[0021] The stirring assembly includes a connecting rod 202 and a stirring blade 203, with the stirring blade 203 fixedly connected to the drive shaft 201 via the connecting rod 202.

[0022] This calcium sulfate ultrafine fiber vacuum filtration equipment uses a variable frequency stirring device. Driven by a variable frequency motor 2, the operator can precisely adjust the output speed of the motor 2 according to the specific process requirements of calcium sulfate ultrafine fiber production, such as different stages like the reaction stage and cooling stage. The output end of the variable frequency motor 2 is fixedly connected to the upper end of the drive shaft 201. When the speed of the variable frequency motor 2 changes, the rotation speed of the drive shaft 201 changes accordingly. Stirring components are equidistantly installed around the circumference of the drive shaft 201. The stirring blades 203 in the stirring components are fixedly connected to the drive shaft 201 via a connecting rod 202. Changes in the speed of the drive shaft 201 cause the stirring blades 203 to rotate at different speeds, thus achieving flexible adjustment of the stirring speed of the calcium sulfate ultrafine fiber mixture.

[0023] During the reaction process, this device can flexibly adjust the stirring speed according to different stages of the reaction. In the initial stage of the reaction, increasing the stirring speed allows the reactants to come into full contact and accelerates the reaction rate. In the later stage of the reaction, the stirring speed is appropriately reduced to avoid excessive stirring from damaging the structure of the generated calcium sulfate ultrafine fibers and to ensure product quality. During the cooling process, the stirring speed is adjusted reasonably according to the actual cooling situation to ensure that the heat in the mixture is evenly dissipated and the temperature of the mixture drops steadily, providing a suitable temperature environment for the formation of calcium sulfate ultrafine fibers. This flexible stirring speed adjustment method greatly improves the stirring effect, ensures the quality of calcium sulfate ultrafine fibers, and improves production efficiency, effectively overcoming the drawbacks of traditional stirring devices.

[0024] Example 2:

[0025] Reference Figures 1-3 A variable frequency stirring device for a vacuum filtration apparatus for calcium sulfate ultrafine fibers is basically the same as in Example 1, but with a further improvement: the stirring assembly has two stirring blades 203, which are symmetrically distributed in the reactor 1. The two stirring blades 203 are arranged in an inverted V-shape. By making the two stirring blades 203 arranged in an inverted V-shape, when the drive shaft 201 drives the stirring assembly to rotate through the connecting rod 202, the calcium sulfate ultrafine fiber mixture located at the top and bottom of the reactor 1 can be guided to the middle position of the reactor 1 for mixing, which effectively improves the mixing uniformity of the calcium sulfate ultrafine fiber mixture at various positions in the reactor 1.

[0026] The stirring blades 203 are hollow. Each of the two stirring blades 203 has a liquid inlet 2031 at its farthest end and a liquid outlet 2032 at its closest end. The two liquid outlets 2032 are positioned opposite each other. When the drive shaft 201 rotates the stirring blades 203 via the connecting rod 202, the calcium sulfate ultrafine fiber mixture located above enters the upper stirring blade 203 through the liquid inlet 2031, while the calcium sulfate ultrafine fiber mixture located below... The calcium sulfate ultrafine fiber mixture enters the upper stirring blade 203 through the inlet 2031 and flows out through the outlet 2032. Since the outlets 2032 on the two stirring blades 203 are set opposite to each other, the calcium sulfate ultrafine fiber mixture entering the two stirring blades 203 will flow against each other through the outlets 2032, so as to impact the calcium sulfate ultrafine fiber mixture that has been guided to the middle position by the two stirring blades 203, thereby further improving the mixing effect of the calcium sulfate ultrafine fiber mixture.

[0027] Example 3:

[0028] Reference Figures 1-3A variable frequency stirring device for a calcium sulfate ultrafine fiber vacuum filtration equipment is basically the same as that in Example 2, but further: a bracket 204 is fixedly connected between the two stirring blades 203 near the liquid outlet 2032, and a stirring fan blade 205 is rotatably connected to the bracket 204.

[0029] With the setting of the stirring blade 205, after the calcium sulfate ultrafine fiber mixture in the upper and lower layers is mixed, it will pass through the stirring blade 205 again. Then the stirring blade 205 will stir and mix the calcium sulfate ultrafine fiber mixture again, further improving the stirring and mixing effect of the calcium sulfate ultrafine fiber mixture, so that the components in the mixture are evenly distributed, thereby ensuring the subsequent vacuum filtration effect.

[0030] Example 4:

[0031] Reference Figures 1-3 A variable frequency stirring device for a calcium sulfate ultrafine fiber vacuum filtration equipment is basically the same as that in Example 2, but further: multiple disturbance plates 206 are fixedly connected at equal intervals around the bottom of the drive shaft 201, and the disturbance plates 206 slide against the inner wall of the bottom of the reaction vessel 1.

[0032] When the drive shaft 201 drives the disturbance plate 206 to rotate, the disturbance plate 206 can push the calcium sulfate ultrafine fiber mixture at the bottom of the reactor 1 to the outside, thereby facilitating the calcium sulfate ultrafine fiber mixture at the bottom of the reactor 1 to enter the stirring blade 203 through the liquid inlet 2031, further improving the stirring efficiency and mixing uniformity of the calcium sulfate ultrafine fiber mixture.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model.

Claims

1. A variable frequency stirring device for a calcium sulfate ultrafine fiber vacuum filtration equipment, characterized in that, The reactor includes a reaction vessel (1), the upper opening of which is connected to a vessel lid (101), and further includes: The drive shaft (201) is vertically rotatably connected inside the reactor (1); A variable frequency motor (2) is fixedly installed on the kettle cover (101), and the output end of the variable frequency motor (2) is fixedly connected to the upper end of the drive shaft (201); The stirring assembly for stirring the calcium sulfate ultrafine fiber mixture is circumferentially and equidistantly mounted on the drive shaft (201).

2. The variable frequency stirring device for a calcium sulfate ultrafine fiber vacuum filtration equipment according to claim 1, characterized in that, The stirring assembly includes a connecting rod (202) and a stirring blade (203), wherein the stirring blade (203) is fixedly connected to the drive shaft (201) via the connecting rod (202).

3. The variable frequency stirring device for a calcium sulfate ultrafine fiber vacuum filtration equipment according to claim 2, characterized in that, The stirring assembly has two stirring blades (203) which are symmetrically distributed in the reactor (1), and the two stirring blades (203) are arranged in an inverted V-shape.

4. The variable frequency stirring device for a calcium sulfate ultrafine fiber vacuum filtration equipment according to claim 3, characterized in that, The stirring blades (203) are hollow inside. The two stirring blades (203) are provided with liquid inlets (2031) at the farthest ends and liquid outlets (2032) at the closest ends. The two liquid outlets (2032) are arranged opposite each other.

5. The variable frequency stirring device for a calcium sulfate ultrafine fiber vacuum filtration equipment according to claim 4, characterized in that, A bracket (204) is fixedly connected between the two stirring blades (203) near the liquid outlet (2032), and a stirring fan blade (205) is rotatably connected to the bracket (204).

6. The variable frequency stirring device for a calcium sulfate ultrafine fiber vacuum filtration equipment according to claim 4, characterized in that, The bottom of the drive shaft (201) is fixedly connected with multiple disturbance plates (206) at equal intervals around the circumference, and the disturbance plates (206) slide against the inner wall of the bottom of the reactor (1).

Images