Filter assembly for calcium sulfate superfine fiber vacuum filtration equipment

Abstract

The utility model discloses a filter assembly for calcium sulfate superfine fiber vacuum filtration equipment, and relates to the field of calcium sulfate superfine fiber production. A filter assembly for calcium sulfate superfine fiber vacuum filtration equipment comprises a conical filter plate, the conical filter plate is arranged in a filter tank, the filter tank is provided with a suction pipe and a liquid discharge pipe below the conical filter plate, the suction pipe is communicated with an external vacuum pump, a tank cover is in threaded connection with a tank opening in the upper end of the filter tank, and the liquid discharge pipe is communicated with a liquid discharge pipe. The hollow shaft stepping motor is fixedly connected to the tank cover; compared with a traditional filtering mode which depends on a filter screen and is easy to block, the filtering assembly effectively reduces the problem that the filter screen is blocked, superfine fibers are thrown into the annular collecting box through centrifugal force, the fibers are prevented from being accumulated on the filter screen to block filtering holes, the filtering process is smoother, frequent shutdown for cleaning the filter screen is not needed, and the filtering efficiency is improved. And the workload of operators is reduced.

Description

Technical Field

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

[0002] In the production and processing of calcium sulfate microfiber, vacuum filtration is a key step in achieving solid-liquid separation and obtaining calcium sulfate microfiber. Currently, common vacuum filtration equipment for calcium sulfate microfiber mainly relies on filter screens for filtration.

[0003] However, in actual production applications, such filter components have revealed obvious limitations. When processing high-concentration calcium sulfate microfiber solutions, the filter pores on the filter screen will gradually be blocked by these attached fibers over time. Once the filter screen pores are blocked, the calcium sulfate microfiber solution cannot pass through the filter screen normally, resulting in a significant decrease in filtration efficiency.

[0004] To solve the problem of filter clogging, operators have to frequently stop the machine to collect and clean the ultra-fine fibers on the filter. This frequent shutdown not only increases the workload of the operators, but also forces the entire filtration process to be interrupted, which seriously reduces production efficiency. In addition, frequent shutdowns and manual cleaning will increase production costs and are not conducive to large-scale industrial production. Therefore, this utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a filter component for a calcium sulfate ultrafine fiber vacuum filtration device that can overcome or at least partially solve the above problems.

[0006] To solve the above-mentioned technical problems, the basic concept of the present invention is as follows: a filter assembly for a calcium sulfate ultrafine fiber vacuum filtration device, comprising a conical filter plate disposed inside a filter tank, a suction pipe and a drain pipe disposed below the conical filter plate in the filter tank, the suction pipe being connected to an external vacuum pump, and a tank cover threadedly connected to the upper end of the filter tank. The assembly also includes: a hollow shaft stepper motor fixedly connected to the tank cover; a drive hollow shaft vertically fixedly connected to the hollow rotor of the hollow shaft stepper motor, the drive hollow shaft extending downwards into the filter tank and fixedly connected to the center position of the upper end of the conical filter plate, the upper end of the drive hollow shaft being connected to an external calcium sulfate ultrafine fiber solution delivery pipe via a rotary joint, and symmetrically provided liquid outlets on both sides of the end of the drive hollow shaft near the conical filter plate; and an annular collection box connected to the lower outer side of the conical filter plate.

[0007] To reduce the frictional resistance between the annular collection box and the inner wall of the filter tank during rotation, and to make the rotation of the annular collection box driven by the conical filter plate smoother, multiple rows of grooves are equidistantly arranged on the outer wall of the annular collection box. Ball bearings are movably connected in the grooves, and the ball bearings roll against the inner wall of the filter tank.

[0008] To prevent the ultrafine fibers thrown into the annular collection box from being thrown out again and to ensure the fiber collection effect, the outer wall of the annular collection box is further higher than the conical filter plate.

[0009] To facilitate the flow of a small amount of solution entering the box through the mesh and achieve further solid-liquid separation, a ring of mesh is further provided at the bottom of the annular collection box.

[0010] To facilitate quick and easy separation from the conical filter plate and thus remove the ultrafine fibers from the box, a ring-shaped limiting protrusion is fixedly connected to the inner wall of the annular collection box, and the inner wall of the annular collection box and the conical filter plate are detachably connected by threads.

[0011] To further prevent the calcium sulfate microfibers from splashing out when thrown towards the annular collection box under centrifugal force, an annular baffle plate is fixedly connected to the upper end of the annular collection box.

[0012] To accelerate the drainage of the solution and facilitate the opening and closing of the canister lid, the lower inner surface of the filter canister is provided with an inclined surface for guiding the solution flow, and the upper end of the canister lid is symmetrically and fixedly connected with handles.

[0013] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: Compared with the traditional filtration method that relies on filter screens and is prone to clogging, the present invention effectively reduces the problem of filter screen clogging. It uses centrifugal force to throw the ultrafine fibers into the annular collection box, avoiding the accumulation of fibers on the filter screen and blocking the filter holes, making the filtration process smoother. It eliminates the need for frequent shutdowns to clean the filter screen, reducing the workload of operators. At the same time, the continuous filtration process improves production efficiency and reduces the time wasted and production costs increased due to shutdowns for cleaning, achieving more efficient filtration and fiber collection of calcium sulfate ultrafine fiber solution.

[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0015] In the attached diagram:

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2This is a schematic diagram of the internal structure of the filter tank of this utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 4 This is a structural schematic diagram of a portion of the present utility model.

[0020] In the diagram: 1. Filter tank; 101. Suction pipe; 102. Drain pipe; 103. Inclined surface; 2. Tank lid; 201. Handle; 202. Hollow shaft stepper motor; 203. Drive hollow shaft; 204. Liquid outlet; 205. Conical filter plate; 206. Annular collection box; 207. Ball bearing; 208. Mesh; 209. Annular limiting protrusion; 2010. Annular baffle plate. Detailed Implementation

[0021] 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.

[0022] Example 1:

[0023] Reference Figures 1-4 A filter assembly for a calcium sulfate ultrafine fiber vacuum filtration device includes a conical filter plate 205 disposed inside a filter tank 1. Below the conical filter plate 205, the filter tank 1 is equipped with a suction pipe 101 and a drain pipe 102. The suction pipe 101 is connected to an external vacuum pump. A tank cover 2 is threadedly connected to the upper opening of the filter tank 1. The device also includes a hollow shaft stepper motor 202, fixedly connected to the tank cover 2; and a drive hollow shaft 203, vertically fixedly connected to... The hollow rotor of the hollow shaft stepper motor 202 is connected to the hollow shaft rod 203, which extends downward into the filter tank 1 and is fixedly connected to the center of the upper end of the conical filter plate 205. The upper end of the hollow shaft rod 203 is connected to the external calcium sulfate ultrafine fiber solution delivery pipe through a rotary joint. The hollow shaft rod 203 has symmetrical liquid outlets 204 on both sides of one end near the conical filter plate 205. The annular collection box 206 is connected to the lower outer end of the conical filter plate 205.

[0024] When vacuum filtration of calcium sulfate ultrafine fibers is required, the calcium sulfate ultrafine fiber solution flows into the drive hollow shaft 203 through a delivery pipe connected to the rotary joint at the upper end of the drive hollow shaft 203, and flows out from the outlets 204 on both sides near the conical filter plate 205, falling onto the conical filter plate 205. The filtrate then passes through the filter holes of the conical filter plate 205 and falls to the lower end of the filter tank 1, while the ultrafine fibers are intercepted on the conical filter plate 205. By activating an external vacuum pump, negative pressure is created inside the filter tank 1 through the suction pipe 101, thereby accelerating the passage of the filtrate. After the conical filter plate 205 has filtered the calcium sulfate ultrafine fiber solution for a period of time, the solution is ready for filtration. The hollow shaft stepper motor 202, fixed on the tank cover 2, is started, driving the connected hollow drive shaft 203 and conical filter plate 205 to rotate rapidly. The ultrafine fibers intercepted on the conical filter plate 205 are then thrown into the annular collection box 206 under the action of centrifugal force. By setting the start time of the hollow shaft stepper motor 202, the conical filter plate 205 can be cleaned periodically to ensure the permeability of the filtrate. When a certain amount of solution is stored at the bottom of the filter tank 1, the drain pipe 102 valve is opened to drain the solution. When it is necessary to remove the ultrafine fibers collected in the annular collection box 206, the tank cover 2 is rotated to separate it from the filter tank 1, and the annular collection box 206 can be removed.

[0025] Compared to traditional filtration methods that rely on filter screens and are prone to clogging, this filtration component effectively reduces the problem of filter screen clogging. It uses centrifugal force to throw the ultrafine fibers into the annular collection box 206, preventing the fibers from accumulating on the filter screen and blocking the filter pores. This makes the filtration process smoother, eliminating the need for frequent shutdowns to clean the filter screen, reducing the workload of operators. At the same time, the continuous filtration process improves production efficiency and reduces the time wasted and increased production costs caused by downtime for cleaning. It achieves highly efficient filtration and fiber collection of calcium sulfate ultrafine fiber solutions.

[0026] Example 2:

[0027] Reference Figures 1-4 A filter assembly for a calcium sulfate ultrafine fiber vacuum filtration device is basically the same as in Example 1, but with a further improvement: multiple rows of grooves are equidistantly arranged on the outer wall of the annular collection box 206, and ball bearings 207 are movably connected in the grooves. The ball bearings 207 roll against the inner wall of the filter tank 1. The rolling resistance between the ball bearings 207 in the grooves on the outer wall of the annular collection box 206 and the inner wall of the filter tank 1 can effectively reduce the frictional resistance between the annular collection box 206 and the inner wall of the filter tank 1 when the annular collection box 206 rotates, making the rotation of the annular collection box 206 driven by the conical filter plate 205 smoother, ensuring the stable operation of the centrifugal separation process, and improving the working efficiency of the filter assembly.

[0028] The outer wall of the annular collection box 206 is higher than that of the conical filter plate 205, which can effectively prevent the ultrafine fibers thrown into the annular collection box 206 from being thrown out again, thus ensuring the fiber collection effect.

[0029] The bottom of the annular collection box 206 has a ring of mesh holes 208. The mesh holes 208 at the bottom of the annular collection box 206 allow a small amount of solution entering the box to flow out through the mesh holes 208, thereby achieving further separation of solid and liquid and preventing the solution from accumulating in the box and affecting the collection of fibers.

[0030] Example 3:

[0031] Reference Figures 1-4 A filter assembly for a calcium sulfate ultrafine fiber vacuum filtration device is basically the same as that in Example 2, but with a further improvement: a ring-shaped limiting protrusion 209 is fixedly connected to the inner wall of the annular collection box 206, and the inner wall of the annular collection box 206 is detachably connected to the conical filter plate 205 by threads. When it is necessary to remove the ultrafine fiber, the annular collection box 206 is rotated, and the threaded detachable feature is used to easily and quickly separate it from the conical filter plate 205, thereby facilitating the removal of the ultrafine fiber in the box and greatly improving the convenience of operation.

[0032] It should be noted that when the conical filter plate 205 drives the annular collection box 206 to rotate, the connection between the two will be more secure under the action of the thread by setting the direction of the thread, thereby preventing the annular collection box 206 from separating from the conical filter plate 205.

[0033] An annular baffle plate 2010 is fixedly connected to the upper end of the annular collection box 206. The annular baffle plate 2010 fixed to the upper end of the annular collection box 206 can effectively prevent the calcium sulfate ultrafine fibers thrown towards the annular collection box 206 under the action of centrifugal force from splashing out, ensuring that as many fibers as possible are collected in the box, improving the collection efficiency and integrity of ultrafine fibers, reducing the scattering of fibers inside the equipment, and facilitating subsequent centralized processing and recycling.

[0034] The lower inner surface of the filter tank 1 is provided with an inclined surface 103 for guiding the solution flow. The upper end of the tank cover 2 is symmetrically fixed with handles 201. The inclined surface 103 provided on the lower inner surface of the filter tank 1 can gather the solution at the bottom of the tank to one place, accelerate the flow of the solution to the drain pipe 102, avoid solution residue, and improve the drainage efficiency. The symmetrically fixed handles 201 on the upper end of the tank cover 2 are convenient for operators to hold, and can be operated more effortlessly and conveniently when opening or closing the tank cover 2, which enhances the convenience of using the equipment.

[0035] 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 filter assembly for a calcium sulfate ultrafine fiber vacuum filtration device, characterized in that, The system includes a conical filter plate (205) disposed inside a filter tank (1). Below the conical filter plate (205), the filter tank (1) is equipped with a suction pipe (101) and a drain pipe (102). The suction pipe (101) is connected to an external vacuum pump. A tank cover (2) is threaded onto the upper opening of the filter tank (1). The system also includes: A hollow shaft stepper motor (202) is fixedly connected to the can lid (2); A hollow drive shaft (203) is vertically fixedly connected to the hollow rotor of the hollow shaft stepper motor (202). The hollow drive shaft (203) extends downward into the filter tank (1) and is fixedly connected to the center of the upper end of the conical filter plate (205). The upper end of the hollow drive shaft (203) is connected to the external calcium sulfate ultrafine fiber solution delivery pipe through a rotary joint. The hollow drive shaft (203) has symmetrical liquid outlets (204) on both sides of the end near the conical filter plate (205). An annular collection box (206) is connected to the lower outer end of the conical filter plate (205).

2. The filter assembly for a calcium sulfate ultrafine fiber vacuum filtration device according to claim 1, characterized in that, The outer wall of the annular collection box (206) has multiple rows of grooves equidistantly spaced around its circumference. Ball bearings (207) are movably connected in the grooves, and the ball bearings (207) roll against the inner wall of the filter tank (1).

3. The filter assembly for a calcium sulfate ultrafine fiber vacuum filtration device according to claim 1, characterized in that, The outer wall of the annular collection box (206) is higher than that of the conical filter plate (205).

4. The filter assembly for a calcium sulfate ultrafine fiber vacuum filtration device according to claim 1, characterized in that, The bottom of the annular collection box (206) has a ring of mesh (208).

5. The filter assembly for a calcium sulfate ultrafine fiber vacuum filtration device according to claim 1, characterized in that, A ring-shaped limiting protrusion (209) is fixedly connected to the inner wall of the annular collection box (206), and the inner wall of the annular collection box (206) and the conical filter plate (205) are detachably connected by threads.

6. The filter assembly for a calcium sulfate ultrafine fiber vacuum filtration device according to claim 5, characterized in that, An annular baffle plate (2010) is fixedly connected to the upper end of the annular collection box (206).

7. The filter assembly for a calcium sulfate ultrafine fiber vacuum filtration device according to claim 1, characterized in that, The lower inner surface of the filter tank (1) is provided with an inclined surface (103) for guiding the solution, and the upper end of the tank cover (2) is symmetrically fixed with handles (201).

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