TWI780986B - Multi-functional filter recycle management system and method of controlling the same - Google Patents

Abstract

The invention discloses a multi-functional filter recycle management system, which comprises a dehydration unit, a smashing unit, a de-heavy-metal unit, a drying unit and a cooling unit. With controlling the water content, size and PH, a maximum removal of heavy-metal is achieved.

Description

Multifunctional filter material recycling system and method thereof

The invention relates to a recovery treatment system and method thereof, in particular to the technical field of filter materials, and is used to solve the recovery treatment problem of recyclates with different characteristics.

In recent years, the prices of various raw materials have soared, and at the same time, the awareness of environmental protection has risen. Therefore, recycling and reuse has gradually been paid attention to. Taking filter materials as an example, the existing recycling procedures are often unable to effectively reduce the heavy metals contained in the processed finished products, resulting in excessive heavy metals that are harmful to the human body in the remanufactured finished products. Therefore, how to effectively reduce the content of heavy metals in recyclables and ensure that the content of heavy metals after recycling is lower than a certain level.

And, generally speaking, recyclables can be divided into four types: neutral, acidic, alkaline and oily. The existing recovery and treatment system cannot effectively combine the treatment of acidic and alkaline recyclables and the treatment of oily recyclables.

Therefore, it is necessary to propose a multifunctional filter material recycling system and its method to solve the above-mentioned problems of the prior art.

In order to solve the problems of the above-mentioned prior art, the object of the present invention is to provide a multifunctional filter material recovery treatment system, which includes a dehydration unit, a crushing unit, a pretreatment unit, a heavy metal removal unit, a drying unit and a cooling unit . The dehydration unit is used to control the moisture content of a recyclate to 13% to 30%. The crushing unit is used to process the recyclate after the dehydration unit Crush into crumbs with a diameter of 5 cm or less. The pretreatment unit is used for mixing the crumbs in the first liquid. The heavy metal removal unit is used to control the crushed particles mixed by the pretreatment unit in a solution with a pH value of 3 to 5 so as to separate out at least one heavy metal ion component in the crushed particles. The drying unit is used to form the crumbs treated by the heavy metal removal unit into dry crumbs with a moisture content of 2% to 5%. The cooling unit is used for cooling and solidifying the dried crumbs processed by the drying unit. Wherein the recyclables include at least one acidic recyclable and at least one basic recyclable.

In a preferred embodiment, the drying unit includes a centrifugal dehydration unit, a squeeze dehydration unit and a heating drying unit. The centrifugal dehydration unit is used to reduce the moisture content of the crushed grains by means of rotation. The extrusion dehydration unit is used to reduce the moisture content of the crushed grains by means of extrusion to form the dried crushed grains. The heating and drying unit is used to control the temperature in the first temperature range to reduce the moisture content of the dried crumbs.

In a preferred embodiment, the first temperature range is 180 to 220 degrees Celsius.

In a preferred embodiment, the extrusion dehydration unit and the heating and drying unit can operate synchronously.

In a preferred embodiment, the dehydration unit further includes a sub-deoiling unit, and when the recyclate also includes at least one recyclate containing oil, the sub-deoiling unit is used to remove grease from the at least one recycle containing oil.

In a preferred embodiment, the sub-deoiling unit includes a pH control unit for controlling the pH value of the sub-deoiling unit to be below 7.

In a preferred embodiment, the recycling system of the multifunctional filter material further includes a finished product unit, which is used to melt the dried crumbs at a temperature of 200°C to 250°C for extrusion molding.

In a preferred embodiment, the heavy metal removal unit further includes an agitation sub-unit, which is used for uniformly contacting the crushed particles with the solution.

In a preferred embodiment, the heavy metal removal unit further includes a washing subunit for removing the solution from the crumbs and rinsing the crumbs with the solution after the crumbs are in contact with the solution for a specified time. grain.

In a preferred embodiment, the crushing unit further includes a filter unit for screening the crushed particles with a particle size larger than 5 cm, so that the crushed particles can be crushed again by the crushing unit.

In order to solve the problems of the above-mentioned prior art, the object of the present invention is to provide another kind of multi-functional filter material recycling method, which comprises: first, a dehydration unit controls the water content of a recyclate to 13% to 30%; then, a The crushing unit crushes the recovered material into particles with a diameter of less than 5 cm; then, a pre-processing unit mixes the particles in the first liquid; then, a heavy metal removal unit controls the particles at a pH value of 3 to a solution of 5 so that at least one heavy metal ion component in the crushed particles is separated out; then, a drying unit forms the dried crushed particles with a moisture content of 2% to 5%; then, a cooling unit makes the dried crushed particles Cool to solidify. Wherein the recyclables include at least one acidic recyclable and at least one basic recyclable.

In a preferred embodiment, the following steps are also included: a centrifugal dehydration unit uses rotation to reduce the moisture content of the crushed grains; an extrusion dehydration unit uses extrusion to reduce the moisture content of the crushed grains to form the drying the crumbs; and a heating and drying unit controlling the temperature of the crumbs at 180°C to 220°C to reduce the moisture content of the dried crumbs.

In a preferred embodiment, the extrusion dehydration unit and the heating and drying unit can operate synchronously.

In a preferred embodiment, it further includes a step: when the recovered material also includes at least one oil-containing recovered material, a sub-deoiling unit of the dehydration unit removes grease from the at least one oil-containing recovered material.

In a preferred embodiment, it further includes a step of: a finished product unit melting the dried crumb at a temperature of 200°C to 250°C for extrusion molding.

Compared with the conventional technology, the present invention has the technical effect of treating the oily recyclate through a sub-deoiling unit and a pretreatment unit so that the acid recycle and the alkaline recycle can be processed together.

100: Filter material recycling system

110: dehydration unit

115: sub deoiling unit

117: Acid-base control unit

120: crushing unit

121: Particle size detection unit

122: filter unit

131: Agitation subunit

132: washing subunit

141: centrifugal dehydration unit

142: extrusion dehydration unit

143: heating and drying unit

130: Heavy metal removal unit

140: drying unit

150: cooling unit

160:Heavy metal detection unit

170: finished unit

180: recyclables

185: crumbs

188: dry crumbs

190: Pre-processing unit

192: first liquid

S01-S08, S041-S043 :step

Fig. 1, depicts the first preferred embodiment of the present invention's multi-functional filter recovery processing system; Fig. 2, depicts the schematic diagram of the first state of the crushing unit of Fig. 1; Fig. 3, depicts the crushing unit of Fig. 1 Schematic diagram of the second aspect; Fig. 4, a schematic diagram of the heavy metal removal unit shown in Fig. 1; Fig. 5, a schematic diagram of the drying unit shown in Fig. 1; Fig. 6, a multifunctional diagram of the first preferred embodiment of the present invention The method for recycling and processing the filter material; and FIG. 7 , which shows step S04 of the first preferred embodiment of the present invention.

The following descriptions of the various embodiments refer to the drawings to illustrate specific embodiments in which the present invention can be implemented. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are for reference only The direction of the schema. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention.

Fig. 1 shows the multi-functional filter material recycling system 100 of the first preferred embodiment of the present invention, which includes a dehydration unit 110, a crushing unit 120, a pretreatment unit 190, a heavy metal removal unit 130, and a drying unit 140 , a cooling unit 150 , a heavy metal detection unit 160 and a finished product unit 170 .

The dehydration unit 110 is used to control the moisture content of a recyclate 180 to 13% to 30%. In detail, the recyclables referred to in the present invention refer to acidic filter cores. However, the water content of recovered filter cores is different, and the efficiency of subsequent operations will be affected in the case of inconsistent water content. Therefore, the main function of the dehydration unit 110 is to control the water content of the recovered filter element to the above-mentioned specific water content for subsequent operations. Preferably, the moisture content can be calculated by using the weight detection unit.

Preferably, the dehydration unit 110 may further include a sub-deoiling unit 115 . When the recovered material 180 also includes at least one recovered material containing oil, the sub-deoiling unit 115 is used to remove the grease of the at least one recovered material containing oil. Subsequent processing. In detail, the sub-deoiling unit includes a pH control unit 117 for controlling the pH value of the sub-deoiling unit to be below 7. In detail, the pH value can be controlled by using an alkaline neutralizing agent.

The crushing unit 120 is used for crushing the recyclate 180 processed by the dehydration unit 110 into fine particles 185 with a diameter of less than 5 cm. Preferably, the filter core is crushed into smaller particles by using a screw blade, because exceeding the above-mentioned diameter will cause the system to be stuck and shut down in subsequent operations; at the same time, increasing the surface area can increase the heavy metal in the heavy metal removal unit 130 The precipitation of ions.

The pretreatment unit 190 is used for mixing the crushed particles 185 in the first liquid 192 . Preferably, the first liquid 192 can be water or a liquid that can easily dissolve the acidic or alkaline substances in the crumbs 185 .

In detail, when the recycled product 180 includes at least one acidic recycled product and at least one basic recycled product, at this stage, the acid-base neutralization of the recycled product 180 itself can be carried out first, and part of the recycled product 180 can be dissolved first. Substances (such as heavy metals...) in the first liquid 192; can also reduce the medicament needed in the heavy metal removal unit 130 (for pH adjustment). In this way, the technical effect of reducing the amount of chemicals used can be achieved while the acidic recovery and the alkaline recovery are processed in combination.

The heavy metal removal unit 130 is used to control the crushed particles 185 mixed by the pretreatment unit 190 in a solution with a pH value of 3 to 5 so as to separate out at least one heavy metal ion component in the crushed particles 185 . In detail, since the recyclate processed by the present invention will at least include acidic filter cores and basic filter cores, by mixing the acidic filter cores and basic filter cores with acid and alkali first, the amount of subsequent medicaments can be reduced to a certain extent. Then control the pH value of the solution in the above-mentioned range to allow the maximum precipitation of heavy metal ions. Preferably, it also includes a pH value control subunit (not shown), which is used to continuously detect the pH value of the solution, and automatically increase the appropriate amount of medicament when the pH value of the solution exceeds the range. The drying unit 140 is used to form the crumbs 185 processed by the heavy metal removal unit 130 into dry crumbs 188 with a moisture content of 2% to 5%.

It needs to be explained here that the difference between the dried crumbs 188 and the crumbs 185 lies in whether the moisture is removed through the drying unit 140 to avoid misunderstanding. The cooling unit 150 is used for cooling and solidifying the dried crumbs 188 processed by the drying unit 140 .

In detail, the dried crumbs 188 are in a semi-molten state at high temperature, which will cause stickiness, and therefore need to be cooled. Preferably, cooling can be done in a pneumatic way, After cooling and solidification, it is transported to the storage tank through the air duct. Preferably, the temperature control unit and the weight sensing unit are used to ensure that the moisture content of the dried crumbs 188 is maintained within the above range (2%-5%).

The heavy metal detection unit 160 is used to detect the content of the first heavy metal ion in the dried crumb 188 processed by the cooling unit 150. When the content of the first heavy metal ion is greater than a safe heavy metal ion content, the dried crumb 188 is The heavy metal removal unit 130 again separates out the at least one heavy metal ion component. In detail, the inventors have found through experiments that when the dried crumbs 188 are completely dry, the detection of the content of heavy metal ions is most accurate. At the same time, because the heavy metal ion content can be accurately detected, the heavy metal ion removal operation can be performed again on the dry crumb 188 whose heavy metal ion content exceeds the standard.

In detail, the finished product unit 170 is used to melt the dried crumbs 188 at a temperature of 200°C to 250°C for extrusion molding, and crush them into shapes required by customers. Specifically, the temperature here can completely melt the dried crumbs 188 , shape the dried crumbs 188 in a specific way, and then cool and make crumbs of different sizes according to customer requirements for recycling. Basically, after the recovery process is completed by the heavy metal detection unit 160, the dried crumbs 188 with a content lower than the safe heavy metal ion can be reused. The finished product unit 170 is used for customizing for different customers. deal with.

Referring to FIG. 2 , a schematic diagram of a first aspect of the crushing unit 120 in FIG. 1 is shown. In this aspect, the crushing unit 120 also includes a particle size detection unit 121 for judging the particle size of the crushed particles. If the particle size is larger than 5 cm, the crushed particles are crushed again by the crushing unit 120 .

Referring to FIG. 3 , a schematic diagram of a second aspect of the crushing unit 120 in FIG. 1 is shown. In this aspect, the crushing unit 120 further includes a filter unit 122 for screening the crushed particles 185 with a particle size larger than 5 cm, so that the crushed particles 185 are crushed again by the crushing unit 120 .

The above two modes can basically be AI recognition (the first mode) and physical screening (the second mode), which can be selected or used simultaneously according to different usage requirements, and are not limited thereto.

FIG. 4 is a schematic diagram of the heavy metal removal unit 130 in FIG. 1 . The heavy metal removal unit 130 also includes a stirring subunit 131 and a washing subunit 132 . The agitation subunit 131 is used to make the broken grain 185 contact with the solution evenly; the washing subunit 132 is used to remove the solution on the broken grain 185 and make the broken grain 185 contact with the solution for a specific time. The solution rinses the crumbs 185 .

Referring to FIG. 5 , it shows a schematic diagram of the drying unit 140 in FIG. 1 . The drying unit 140 includes a centrifugal dehydration unit 141 , an extrusion dehydration unit 142 and a heating and drying unit 143 . The centrifugal dehydration unit 141 is used to reduce the moisture content of the broken grains 185 by means of centrifugal rotation. The extrusion dehydration unit 142 is used for reducing the moisture content of the crushed grains 185 by means of extrusion to form the dried crushed grains 188 .

The heating and drying unit 143 is used to control the temperature within a first temperature range to reduce the moisture content of the dried crumbs 188 . Preferably, the centrifugal dehydration unit 141 is used for preliminary dehydration; and the extrusion dehydration unit 142 and the heating and drying unit 143 are used for the second half of dehydration, and can also be operated synchronously. Wherein the first temperature range is from 180°C to 220°C, the temperature is just enough to make the crumb 185 into a semi-molten state without complete melting, and when the temperature drops, it will return to the state of the crumb 185, therefore When the heavy metal detection unit 160 detects that the concentration of heavy metal ions is too high, it does not need to be sent to the crushing unit 120 for crushing, but can be directly sent to the heavy metal removal unit 130 for operation.

Referring to FIG. 6 , it illustrates the recycling and processing method of the multifunctional filter material according to the first preferred embodiment of the present invention. Please refer to Fig. 1-Fig. 6 for the element symbols mentioned in this method, which includes: first, step S01 is executed, a dehydration unit 110 controls the moisture content of a recyclate 180 to 13% to 30%; then, step S02 is performed, and a crushing unit 120 crushes the recyclate 180 into particles 185 with a diameter of 5 cm or less; then, step S08 is performed, and a pre-processing unit 190 puts the particles 185 in the first liquid 192 Mixing; then, step S03 is performed, and a heavy metal removal unit 130 controls the crumb 185 in a solution with a pH value of 3 to 5 so that at least one heavy metal ion component in the crumb 185 is separated out; then, step S04 is performed , a drying unit 140 forms the crumb 185 into a dry crumb 188 with a moisture content of 2% to 5%; then, step S05 is performed, and a cooling unit 150 cools and solidifies the dry crumb 188; then, step S06 is performed, a The heavy metal detection unit 160 is used to detect the first heavy metal content in the dried granules 188 after cooling down. When the first heavy metal ion content is greater than a safe heavy metal ion content, the dried granules 188 will be de-heavy metal 130 again. Precipitation of the at least one heavy metal ion component; finally, step S07 is performed, a finished product unit 170 melts the dried crumb 188 at a temperature of 220°C to 250°C for extrusion molding.

Referring to FIG. 7 , step S04 of the first preferred embodiment of the present invention is shown. In detail, in this step S04, it can also be subdivided into the following steps: first, execute step S041, a centrifugal dehydration unit 141 reduces the moisture content of the grain 185 by means of rotation; then, execute step S042, an extrusion dehydration The unit 142 uses extrusion to reduce the moisture content of the crumbs 185 to form the dried crumbs 188; then, step S043 is executed, a heating and drying unit 143 controls the temperature of the crumbs 185 at 180 degrees Celsius to 220 degrees Celsius The moisture content of the dry crumb 188 is reduced to a certain degree. Preferably, the extrusion dehydration unit 142 and the heating and drying unit 143 in step S032 and step S033 can operate synchronously.

In detail, between step S02 and step S03, step S021 (not shown) may also be included, wherein a particle size detection unit 121 of the pulverizing unit 120 judges the size of the crushed particle 185 If the particle size is greater than 5 cm, then the crushing unit 120 will carry out the crushing operation again with the crushed particle 185; or step S022 (not shown), a filter unit 122 of the crushing unit 120 screens the crushed particle with a particle size greater than 5 cm 185 , making the crushing unit 120 perform the crushing operation again on the crushed particles 185 .

In detail, when the recyclate 180 also includes at least one oil-containing reclaim, there will be a step S09 (not shown) before the step S01, a sub-deoiling unit 115 of the dehydration unit 110 removes the at least one oil-containing recycle the fat of things.

The above are only preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications are also made, and these improvements and modifications should also be regarded as the present invention. protection scope of the invention.

100: Filter material recycling system

110: dehydration unit

115: sub deoiling unit

117: Acid-base control unit

120: crushing unit

130: Heavy metal removal unit

140: drying unit

150: cooling unit

160:Heavy metal detection unit

170: finished unit

180: recyclables

185: crumbs

188: dry crumbs

190: Pre-processing unit

192: first liquid

Claims (10)

A multi-functional filter material recovery treatment system, which includes: a dehydration unit, used to control the moisture content of a recyclate to 13% to 30%; a crushing unit, used to crush the recyclate after being processed by the dehydration unit Crushed particles with a diameter of less than 5 cm; a pretreatment unit for mixing the crushed particles in the first liquid; a heavy metal removal unit for controlling the pH value of the crushed particles mixed by the pretreatment unit A solution of 3 to 5 in order to separate out at least one heavy metal ion component in the crumb; a drying unit for forming the crumb after being treated by the heavy metal removal unit into a dry crumb with a moisture content of 2% to 5%. and a cooling unit, used to cool and solidify the dried crumbs processed by the drying unit, wherein the recyclables include at least one acidic recyclable and at least one basic recyclable. The multi-functional filter material recovery and processing system as claimed in claim 1, wherein the drying unit includes: a centrifugal dehydration unit, which is used to reduce the moisture content of the crumbs by rotating; an extrusion dehydration unit, which is used to use extrusion reducing the moisture content of the crumbs to form the dried crumbs; and a heating and drying unit for controlling the temperature of the crumbs at 180 degrees Celsius to 220 degrees Celsius to reduce the moisture content of the dried crumbs. According to the multi-functional filter material recovery and treatment system of claim 2, wherein the extrusion dehydration unit and the heating and drying unit can operate synchronously. The multi-functional filter recovery treatment system according to claim 1, wherein the dehydration unit also includes a sub-deoiling unit, and when the recyclate also includes at least one oil-containing recyclate, the sub-deoiling unit is used to remove the at least one Grease with oil recovery. The multifunctional filter material recycling system according to claim 1 further includes a finished product unit, which is used to melt the dried crumbs at a temperature of 200°C to 250°C for extrusion molding. A multi-functional filter material recovery treatment method, which includes: a dehydration unit controls the water content of a recyclate to 13% to 30%; a crushing unit crushes the recyclate into particles with a diameter of less than 5cm; a pre-processing unit The crushed particles are mixed in the first liquid; a heavy metal removal unit controls the crushed particles in a solution with a pH value of 3 to 5 so as to separate out at least one heavy metal ion component in the crushed particles; a drying unit controls the crushed particles forming dry crumbs with a moisture content of 2% to 5%; and a cooling unit to cool and solidify the dried crumbs, wherein the recyclables include at least one acidic recyclate and at least one alkaline recyclate. The multifunctional filter material recycling method as claimed in claim 6, which also includes: a centrifugal dehydration unit adopts a rotating method to reduce the moisture content of the granules; an extrusion dehydration unit adopts extrusion to reduce the moisture content of the granules rate to form the dried crumbs; and a heating and drying unit controls the temperature of the crumbs at 180°C to 220°C to reduce the moisture content of the dried crumbs. The multi-functional filter material recycling method as claimed in item 7, wherein the extrusion dehydration unit and the heating and drying unit can operate synchronously. The multi-functional filter material recovery treatment method as claimed in item 6, which further includes a step: when the recovered material also contains at least one oily recovered material, a sub-deoiling unit of the dehydration unit is used to remove the at least one oily recovered material the fat of things. The method for recycling and processing the multifunctional filter material according to claim 6 further includes a step of: a finished product unit melting the dried crumbs at a temperature of 200°C to 250°C for extrusion molding.

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