TWI772049B - Rapid forming method of a filter - Google Patents

Abstract

A rapid forming method of a filter includes a material preparation step, a mixing step, a spraying step, a preliminary forming step, and a forming step. The mixing step is to mix a polymer fiber material prepared in the material preparation step with a certain proportion of water by a stirring unit to obtain a slurry material. The spraying step is to spray the slurry material over cavities of an upper mold and a lower mold. The preliminary forming step is to discharge redundant water and gas by a vacuum unit during the spraying operation to thereby gradually form the slurry material into an embryo filter. The forming step is to release the molds and maintain the embryo filter to obtain the finished filter. Hence, the continuous rapid forming process can increase the production efficiency effectively.

Description

Filter rapid prototyping method

The present invention relates to a filter manufacturing process, in particular to a filter rapid prototyping method.

Check, when power plants or large industrial factories are in operation, they will generate too much exhaust gas, and the exhaust gas will be rich in many gaseous pollutants. Therefore, in order to avoid the pollution of the exhaust gas to the environment and the human Health causes harm. Therefore, in the environmental protection regulations, all waste gas generated by industrial manufacturing plants must be treated before being discharged. Therefore, when industrial manufacturing plants discharge waste gas through a filter system for treatment, at the same time, in order to effectively use The dust and dust in the exhaust gas are isolated and the purification of the exhaust gas is achieved. Therefore, it is known to install a fiber filter bag on the filter system for processing the exhaust gas. , through the outside of the fiber filter bag to enter the internal filter, so that the dust and dust in the exhaust gas can be effectively isolated from the fiber filter bag, so as to achieve the effect of industrial exhaust gas filtration.

However, it is found that although the filtration of industrial waste gas can be achieved by using the fiber filter bag, in the process of use, due to the relationship between the thickness and density of the overall structure of the fiber filter bag, it can only be used for large particles in the industrial waste gas. Dust and dust are effectively isolated from the outside, but for light and tiny dust particles, etc., they cannot be blocked and filtered by the fiber filter bag, and they will still be merged into the air after filtering, and the filtering effect still needs to be improved.

Therefore, the purpose of the present invention is to provide a filter rapid prototyping method. The method can reduce the process and produce the filter of fiber material quickly, which can effectively improve the production efficiency.

Therefore, a filter rapid prototyping method of the present invention includes a material preparation step, a mixing step, a spraying step, a preliminary forming step and a forming step in sequence; wherein, in the mixing step, the fibers prepared in the material preparation step are polymerized. Raw material, and add 2~150 times of water based on the fiber polymerization raw material, mix and stir to form a slurry, and the spraying step is equipped with a discharge unit and a forming die set, the discharge unit accepts the slurry and sprays with it. The mold is sprayed on the upper and lower mold cavities of the molding mold, and at the same time, it cooperates with the vacuum unit provided in the preliminary molding step to discharge excess water and gas in the slurry in the molding mold, so that the slurry can be discharged. The body is gradually formed into a filter prototype, and finally the filter prototype obtained in the preliminary molding step is demolded and cured to form a filter through the molding step; In the manufacturing process, firstly, the mixing step is used to stir and mix into a slurry, and then the spraying and preliminary molding steps are used to form the slurry in a uniformly staggered form along the shape of the molding die by spraying. It is extracted from the gas, so that the prototype shape of the filter can be rapidly formed, and then a filter can be formed through the demoulding and maintenance procedures of the molding step, which can not only achieve rapid molding, but also effectively improve the quality of filter molding production. , and improve production efficiency.

(this invention)

3: Filter rapid prototyping method

31: Material preparation steps

32: Mixing step

33: Spraying step

34: Preliminary molding steps

35: Molding step

4: Stirring unit

41: mixing drum

42: Blender

5: discharge unit

50: Pneumatic pump

51: Rotary drum

52: output tube

521: End

53: jet hole

6: Forming module

61: Mobile seat

62: Upper mold

621: The inner wall of the upper mold

63: Lower mold

631: The inner wall of the lower mold

64: Mould cavity

65: Top switch unit

651: Actuator

652: Supports

7: Vacuum unit

8: Filter

A: Fiber polymer raw materials

B: water

C: opening

D: hollow chamber

E1: its one end

E2: the other end

FIG. 1 is a block diagram of a process flow of a preferred embodiment of the present invention.

FIG. 2 is a schematic diagram of the process equipment of the preferred embodiment.

3A to 4B are schematic diagrams of the action of the partial components of the preferred embodiment.

Regarding the aforementioned and other technical contents, features and effects of the present invention, the following This will become apparent from the detailed description of the preferred embodiment with reference to the drawings.

Referring to FIG. 1, a preferred embodiment of the present invention, the filter rapid prototyping method sequentially includes steps such as a material preparation step 31, a mixing step 32, a spraying step 33, a preliminary molding step 34, and a molding step 35; wherein, The material preparation step 31 has a fiber polymerization raw material A, and the fiber polymerization raw material A is at least composed of a mixture of ceramic fibers, glass fibers, aluminum silicate fibers, mineral fibers, plant fibers, and organic/inorganic adhesives. At least one selected from the above-mentioned ceramic fiber is a kind of light weight, high temperature resistance, good thermal stability, low thermal conductivity and high porosity, and is not easy to chemically react with chemical substances, and has good high temperature resistance. It has properties such as rigidity, and the glass fiber is an inorganic fiber with high temperature resistance, non-flammability, low hygroscopicity, good electrical insulation performance and good chemical stability. It has the characteristics of good thermal stability, low thermal conductivity, small heat capacity, good resistance to mechanical vibration, small thermal expansion, and good thermal insulation performance. The mineral fiber is a kind of basalt ore, which is composed of plagioclase, pyroxene and olivine. It has the characteristics of non-flammability, anti-electromagnetic radiation, acid, alkali and corrosive chemical reagents and excellent tensile strength, and the plant fiber is a kind of fiber extracted from nature, which is light in material and biodegradable. , No harm to human body, high strength, large modulus, hard quality; friction resistance, corrosion resistance, and blister resistance. In addition, the mixing step 32 is equipped with a water B as a medium, and a stirring unit 4 (represented by a schematic diagram in the figure), and the stirring unit 4 has a polymer for the fiber in the previous step. A stirring drum 41 where the raw material A is placed, and a stirrer 42 that can be stirred in the stirring drum 41, and in the stirring drum 41, 2~150 times of water B is added based on the fiber polymerization raw material A, and then by The agitator 42 performs stirring and mixing in the mixing drum 41 to form a slurry.

Continuing the above, please refer to FIG. 2 and FIG. 3 , the spraying step 33 has a discharging unit 5 connected with the stirring unit 4 , and a forming mold corresponding to the discharging unit 5 Group 6 (represented by a schematic diagram in the figure), wherein, the discharging unit 5 has a rotating drum 51 for receiving the slurry, an output pipe 52 connected with the rotating drum 51 and conveying the slurry, and a plurality of openings On the output pipe 52 and the ejection hole 53 for the slurry output, the rotating drum 51 receives the slurry formed by mixing and stirring of the mixing drum 41, and the rotating drum 51 rotates continuously so as to align the received slurry. The slurry is stirred, thereby avoiding the early solidification of the slurry, and then the slurry is output from the output pipe 52 and sprayed out through the spray holes 53, and at the same time, the stirring unit 4 can be effectively The formed slurry can be completely output to the discharge unit 5, so in this embodiment, the discharge unit 5 is provided with a pneumatic pump 50 between the rotating drum 51 and the mixing drum 41 (in the figure, the Figure ), through the action of the pneumatic pump 50, the slurry can be output smoothly.

Continuing from the above, the forming mold 6 has a movable seat 61, and two upper and lower molds 62, 63 that can be opened and closed correspondingly on the movable seat 61 and move with the movable seat 61, and the aforementioned upper and lower molds After 62 and 63 are closed, a cavity 64 is formed between the upper and lower molds 62 and 63 for the output pipe 52 to extend into. The upper and lower molds 62 and 63 are opposite to the inner wall surface 621 of the cavity 64 . , 631 is provided with a plurality of openings C, and the upper mold 62 and the lower mold 63 are provided with a hollow cavity D at the same time, so that these openings C are communicated with the hollow cavity D, and the above-mentioned upper, When the lower molds 62 and 63 move toward the output pipe 52 along with the moving seat 61 , the upper and lower molds 62 and 63 will gradually close to each other, so that the output pipe 52 is located in the upper and lower molds 62 . , 63, on the contrary, when the upper and lower molds 62, 63 move away from the output pipe 52 along with the moving seat 61, the upper and lower molds 62, 63 will gradually be separated from each other by the cover mode. The output pipe 52 will exit between the upper and lower molds 62, 63. Meanwhile, in this embodiment, the upper and lower molds 62, 63 are provided with a top catch unit 65 on the side of the mold cavity 64. The top latching unit 65 has an actuating member 651 and a support member 652 which can be acted on by the actuating member 651 and extends into the mold cavity 64 to act. The supporting member 652 and the actuating member 651 The opposite end E1 extends into the actuating member 651, and is extended or retracted with the action of the actuating member 651, so that the other end E2 of the supporting member 652 can just extend into the supporting member 652 when the supporting member 652 is extended. The mold cavity 64 is pressed against the end 521 of the output tube 52, so that the output tube 52 is stably fixed in the mold cavity 64, and the mold cavity 64 can be in a tube shape, a rectangular shape, or an irregular shape. It can also be set according to the customized special specifications and other aspects.

As for the preliminary forming step 34, there is a vacuum unit 7 (shown as a schematic diagram in the figure) connected to the upper and lower molds 62 and 63, and the vacuum unit 7 extends into the hollow of the upper and lower molds 62 and 63. In the chamber D, the vacuum unit 7 can fill the slurry between the upper and lower molds 62, 63 and the moisture and gas in the mold cavity, and pump it through the openings C to the hollow chamber D. Discharge, so that the slurry sprayed between the upper and lower molds 62, 63 is gradually formed into the prototype shape of the filter 8; finally, in the molding step 35, the above-mentioned preliminary molding step 34 is used in the upper, lower molds. The filter 8 prototype obtained by the lower molds 62, 63 is removed for maintenance, and in the maintenance operation, the formed filter 8 prototype can be left to stand, and then passed through drying equipment with different temperatures (Fig. (not shown), that is, if there are at least the settings of drying equipment such as low temperature, medium temperature and high temperature, the filter 8 prototype is further dehydrated, dried and other strokes, and the shape specification of the formed filter 8 can be seen more at the same time. , and further select the appropriate drying temperature and time, that is, if the drying temperature of low-temperature equipment is at least 100 degrees below the time, it can be set within 6~24 hours, and the drying temperature of medium-temperature equipment is at least 100 degrees ~ 150 degrees The drying time can be set within 24 hours, and the drying temperature of high-temperature equipment is at least 150 degrees to 1300 degrees, and the time can be set to 24 hours to 96 hours, and the drying time is less than 10%. A filter 8.

Referring to FIGS. 1 to 2 , during the molding process, the prepared fiber polymerization raw material A and the water B in a certain ratio based on the fiber polymerization raw material A are stirred through the mixing drum 41 and the agitator 42 , so that the fiber polymerization raw material A is mixed with water B and stirred During the stirring process, to fully fuse with each other and form a slurry, and then the slurry is received by the rotating drum 51, so that the slurry is continuously stirred during the rotation of the rotating drum 51, which can be avoided by continuous stirring. The slurry has an early solidification phenomenon, and the movable seat 61 is continuously moved to the output pipe 52. At this time, during the movement of the movable seat 61, the upper and lower molds 62 and 63 will approach the output pipe 52. The cover is gradually formed, so that the conveying pipe 52 is located between the mold cavity 64 when the upper and lower molds 62 and 63 are closed, as shown in FIG. 3A to FIG. The support member 652 on the side is also acted by the actuating member 651 when moving, and extends into the mold cavity 64 until the upper and lower molds 62, 63 are tightly closed to each other, and the other end E2 is just right. It is pressed against the end portion 521 of the conveying pipe 52 to help support the stable positioning of the conveying pipe 52 , as shown in FIG. 4A .

At this time, under the auxiliary action of the pneumatic pump 50, the mixing drum 41 can effectively and smoothly output the slurry during the process of outputting the slurry to the rotating drum 51, and the conveying pipe 52 is properly controlled to rotate the slurry from the rotating drum 51. The cylinder 51 is transported from the inside to the outside, so that the slurry is formed on the inner wall surfaces 621 and 631 of the upper and lower molds 62 and 63 through the spray holes 53 under the output pressure. , the support design of the end portion 521 can be effectively restrained by the support member 652, which can avoid the deviation and shaking of the conveying pipe 52 during the spraying operation of the slurry output, and not only effectively It supports the conveying pipe 52 to be stably positioned to carry out the spraying operation, and is more conducive to the slurry sprayed out from the spray holes 53 to be effectively distributed and formed in the mold cavity 64 in a uniform and staggered state until the spraying operation is completed. Reuse the vacuum unit 7 for the excess moisture generated by the slurry on the upper and lower molds 62, 63, and the gas mixed in the stirring process, through the hollow chamber D communicated with the openings C. It is extracted, so that the slurry sprayed between the upper and lower molds 62, 63 is gradually formed into the prototype shape of the filter 8, so as to avoid excessive moisture and affect the process of forming the filter 8, and in the molding for a period of time After that, the demolding process can be carried out, and the movement of the movable seat 61 can be controlled by appropriately controlling the movement. The seat 61 moves in the opposite direction of the conveying pipe 52. At this time, the upper and lower molds 62 and 63 are changed from the original close-fitting state to the mutual separation mode during the moving process, and the top stop is extended on the output pipe. The supporting piece 652 on the end 521 of the 52 will shrink inwardly under the action of the actuating piece 651, so that the output pipe 52 is no longer supported by the supporting piece 652 until the conveying pipe 52 is completely withdrawn Outside the mold cavity 64, the initially completed filter 8 prototype will appear on the lower mold 63, and then the filter 8 prototype is removed from the lower mold 63 to form a filter 8, that is, as As shown in FIG. 4B , the completed filter 8 prototype is subjected to subsequent maintenance operations, that is, the drying operations are carried out in standstill, low temperature, medium temperature and high temperature methods. The filter 8 is used in the required filtration system (not shown in the figure), so that the filter 8 can not only filter dust and dust, but also filter harmful nitrogen oxides, organic Volatile gases, etc., are adsorbed and isolated, and the filtering effect can be greatly effectively exerted; therefore, in the manufacturing process carried out through the consistent continuous process of material preparation, mixing, spraying, preliminary molding and molding, not only can the molding be quickly achieved, but also It can effectively improve the quality of filter molding and improve production efficiency.

Summarizing the foregoing, the filter rapid prototyping method of the present invention mainly comprises the following steps: in the mixing step, the fiber polymerization raw materials and water are mixed and stirred in a certain proportion to form a slurry; The spraying method makes the slurry evenly staggered and shaped along the shape of the molding die, and cooperates with the vacuum unit (ie, the preliminary molding step) during the spraying process to extract the excess water and gas in the slurry. After the slurry is gradually formed into a filter prototype, it can be demolded and maintained to form a filter, which can not only achieve rapid molding, but also effectively improve the filter molding production quality and production efficiency.

However, the above descriptions are merely to illustrate the preferred embodiments of the present invention, and should not limit the scope of implementation of the present invention. Simple equivalent changes and modifications made in the contents of the specification should still fall within the scope of the patent of the present invention.

3: Filter rapid prototyping method

31: Material preparation steps

32: Mixing step

33: Spraying step

34: Preliminary molding steps

35: Molding step

4: Stirring unit

5: discharge unit

6: Forming module

7: Vacuum unit

8; filter

A: Fiber polymer raw materials

B: water

Claims (3)

A filter rapid prototyping method, which includes: a material preparation step, which is prepared with a fiber polymerization raw material; a mixing step, which is prepared with a medium of water, and a stirring unit, wherein, the stirring unit has a supply for the previous one. The mixing drum in which the fiber polymerization raw material is placed in the step, and a stirrer that can be stirred in the mixing drum, and 2~150 times of water is added to the mixing drum based on the fiber polymerization raw material, and the mixing is performed by the mixing drum. A slurry is formed by stirring and mixing with the device; in the spraying step, it is equipped with a discharging unit connected with the stirring unit, and a forming module corresponding to the discharging unit, wherein the discharging unit has a The rotating drum of the slurry, an output pipe connected to the rotating drum and conveying the slurry, and a plurality of ejection holes opened on the output pipe and outputting the slurry, and the aforesaid is continuously rotated through the rotating drum. In order to agitate the received slurry, it can avoid the early solidification phenomenon of the slurry; in addition, the forming module has a movable seat, and two can be opened and closed correspondingly on the movable seat and follow the The movable seat moves the upper and lower molds, and after the upper and lower molds are closed, a mold cavity is formed between the upper and lower molds for the output pipe to extend into. At the same time, the upper and lower molds are relative to the mold. The inner wall of the cavity is provided with a plurality of openings, so that when the upper and lower molds move with the moving seat to the output pipe, the upper and lower molds will gradually be in a state of being tightly covered with each other, so that the output pipe Located between the upper and lower molds, the slurry is sprayed in the mold cavity through the output pipe and the spray holes, and the excess water contained in the slurry spray can be discharged to the upper through the holes , outside the lower mold; the preliminary molding step, which is equipped with a vacuum unit connected with the upper and lower molds, the vacuum unit can fill the slurry with the moisture and gas in the mold cavity, through the openings. Extraction and discharge, so that the slurry sprayed between the upper and lower molds is gradually formed into a filter prototype; and In the molding step, the filter prototype obtained in the upper and lower molds in the preliminary molding step is separated from the upper and lower molds for maintenance to form a filter. The filter rapid prototyping method according to claim 1, wherein the upper and lower mold sides are provided with a top catch unit that can extend into the mold cavity, and the top catch unit has an actuating member and a A supporting piece which is acted by the actuating piece and is placed in the mold cavity for action, and when the supporting piece is stretched, can just support the output pipe in a stable position. The filter rapid prototyping method according to claim 1, wherein the fiber polymerization raw material is at least composed of a mixture of ceramic fibers, glass fibers, aluminum silicate fibers, mineral fibers, plant fibers and organic/inorganic adhesives. At least one selected from the group.

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