KR102302354B1 - Mixing Material Manufacturing System Using Waste Acid and Dissipative Materials - Google Patents

Abstract

The present invention relates to a mixed material manufacturing system using waste acid and fly ash, which comprises: a liquid tank unit for supplying waste acid; a hoist for transporting fly ash; a fly ash supply unit for supplying fly ash transferred from the hoist; a waste acid weight measurement unit for measuring the weight of the waste acid supplied from a liquid tank unit; a fly ash weight measurement unit for measuring the weight of the fly ash supplied from the fly ash supply unit; a mixing unit for mixing the waste acid supplied from the waste acid weight measurement unit and the fly ash supplied from the fly ash weight measurement unit and solidifying the same; a gas processing unit for removing ammonia from the gas discharged from the mixing unit and discharging the same; and a mixed material conveyor for transporting the solidified mixed material supplied from the mixing unit.

Description

Mixing Material Manufacturing System Using Waste Acid and Dissipative Materials

The present invention relates to a system for solidifying a mixture of spent acid and fly ash.

In recent years, in the treatment method of domestic waste, which is emerging as one of the new urban problems, in the past, it mainly relied on landfill. However, as it is becoming increasingly difficult to secure a landfill site, the method of reducing the amount of waste generated by incineration rather than the landfill method is emerging as a major alternative in terms of extending the life of the landfill.

In addition, incineration ash generated after incineration of household waste is largely classified into floor ash and fly ash. In particular, fly ash generates less than floor ash, but contains relatively high chlorine and heavy metal content. It is declared as waste and must be landfilled at a managed landfill. Accordingly, the cost of landfilling is increasing, and the harmfulness of these landfills is much higher than that of flooring materials, and it is also unsuitable for recycling.

In order to landfill these fly ash, a solidification method in which a solidification ash and incineration ash are put in a mixer and mixed with water to solidify, and a chemical stabilization method in which a chemical is added to stabilize heavy metals in the incinerator to reduce the elution amount, etc. are used.

In this regard, Republic of Korea Patent Registration No. 10-0492619 (Title of the invention: method for treating fly ash according to domestic waste incineration) discloses a configuration for treating fly ash.

On the other hand, waste acid is generated in large quantities in the steel process of refining or plating copper, zinc, aluminum, titanium, nickel, mercury, etc., and the chemical process of manufacturing aramid fiber. It takes processing cost and time. Accordingly, various technologies are being developed that can protect the environment and save huge treatment costs by recycling waste acid.

Republic of Korea Patent Registration No. 10-0492619

Accordingly, the present invention was invented to solve the problems of the prior art described above, and it is to provide a system for solidifying treatment using fly ash and waste acid, which are wastes.

As a means for solving the above-mentioned problems, a mixed material manufacturing system using spent acid and fly ash according to the present invention (hereinafter referred to as "system of the present invention") includes: a liquid tank unit for supplying spent acid; hoists for transporting fly ash; a fly ash supply unit for supplying fly ash transferred from the hoist; a waste acid weight measurement unit for measuring the weight of the spent acid supplied from the liquid tank unit; a fly ash weight measurement unit for measuring the weight of the fly ash supplied from the fly ash supply unit; a mixing unit for solidifying by mixing the spent acid supplied from the waste acid weighing unit and the fly ash supplied from the fly ash weighing unit; a gas processing unit for removing ammonia from the gas discharged from the mixing unit and discharging; and a mixture conveyor for transferring the solidified mixture supplied from the mixing unit.

As an example, the mixing unit may include a driving unit; A rectangular cylindrical body in which a fly ash inlet and a mixed material outlet are respectively formed on one upper side and the other lower side; a first stirring unit connected to the driving unit and rotating in one direction; a second stirring unit positioned to overlap the first stirring unit and rotating in the opposite direction to the first stirring unit; And it characterized in that it comprises a nozzle part for spraying the waste acid to the fly ash flowing in through the fly ash inlet of the body part.

As an example, the chelate resin supply unit for supplying the chelate resin to the mixing unit is further configured.

As an example, a foreign material remover is configured at the front end of the liquid tank unit, and the foreign material remover includes a housing having an inlet line through which waste acid is introduced on one side, and a circulating flow is formed in the inflowing waste acid, and a first formed on the lower surface of the housing. 1A foreign material discharge line, a partition comprising a partition wall that divides the housing into top and bottom, and an overflow wall integrally protruding upward from the opening of the partition wall, and the upper end of the housing by the partition part It is formed in the storage chamber and the discharge line is formed on one side of which a waste acid containing foreign matter is removed is discharged, and an oil storage chamber formed on one side of the storage chamber and a second foreign material discharge line is formed, characterized in that it comprises do.

As an example, a heating wire is embedded in the partition part, and the partition part is characterized in that heat is generated by the application of power.

As an example, the gas processing unit causes the gas discharged from the mixing unit to flow upward from the lower end, sulfuric acid solution or phosphoric acid solution flows downward from the upper end, and the gas from which ammonia gas has been removed from the upper end is discharged to the outside. and a lower housing communicating with the lower end of the upper housing and discharging to the outside while storing an ammonium sulfate solution or an ammonium phosphate solution, and a sulfuric acid solution or a phosphoric acid solution and The barrier ribs are formed in a zigzag pattern so that the contact time of the upward gas is long, and the barrier ribs are characterized in that the barrier ribs are formed with flat plates on both sides and vortex forming parts that form a vortex while communicating up and down in the central part.

As an example, the vortex forming unit includes a base plate in which a plurality of flow passages are formed while being connected to the flat plate and a rotation shaft protrudes from the central portion, and a plurality of second flow passages are formed while rotating in the rotation shaft, and a plurality of second flow passages are formed between the second flow passages. It is characterized in that it comprises a rotating plate stacked to form a plurality of vortex forming pins protruding downward, and a guide plate protruding from the base plate and guiding a sulfuric acid solution or a phosphoric acid solution to the rotating plate.

As described above, the present invention has economic advantages by using waste acid, an industrial by-product, without the need to use expensive neutralizing acid to neutralize waste alkali obtained after the treatment of fly ash.

In addition, the present invention has the advantage of being environmentally friendly because it is possible to minimize the generation of ammonia in the manufacturing process of the mixture.

1 is a schematic diagram showing the system of the present invention,
2 is a schematic diagram of a mixing unit as one configuration of the present invention;
3 is a schematic diagram of a gas processing unit as one configuration of the present invention;
4 and 5 are a side cross-sectional view and a plan view showing an embodiment of the partition wall shown in FIG. 3,
6 and 7 are views showing a foreign material remover as one configuration of the present invention.

In describing the present invention, the terms or words used in the present specification and claims are based on the principle that the inventor can appropriately define the concept of the term in order to best describe his invention. It must be interpreted as a meaning and concept consistent with the technical idea of

The system 1 of the present invention is a system for manufacturing a mixed material by mixing waste acid and fly ash. Referring to FIG. 1 , a liquid tank unit 100, a hoist 11, a fly ash supply unit 200, and a waste acid weight measurement unit 300 ), a fly ash weight measurement unit 400 , a mixing unit 500 , a mixture conveyor 600 , and a gas processing unit 700 .

In addition, the system 1 of the present invention is a waste acid weighing unit 300 for preparing a mixed material having a desired moisture content, and a fly ash of a preset weight from the waste acid weight measurement unit 300 and the fly ash weight measurement unit 400 . It is supplied to the mixing unit 500, and the supplied waste acid and fly ash are mixed to be solidified, and the solidified mixture is transferred to the outside. In this way, the solidified mixture may be loaded onto a transport truck and carried out to the outside.

In addition, the fly ash can be transported by the hoist (11). Illustratively, the hoist 11 can get off the truck by moving the ton bag 12 (Ton Bag) in which the fly ash is stored, in the vertical direction, and transport the ton bag 12 along the rail installed on the ceiling, to remove the fly ash from the fly ash. It can be transferred to the supply unit 200 .

The liquid tank unit 100 is configured to supply waste acid, and is located above the waste acid weighing unit 300 , and may supply the spent acid to the spent acid weighing unit 300 under natural pressure.

The spent acid weighing unit 300 may store the spent acid supplied from the liquid tank unit 100 and measure the weight of the stored waste acid. In addition, the spent acid weighing unit 300 may include at least one or more spent acid load cells to measure the weight of the stored waste acid.

Illustratively, the waste mountain weight measurement unit 300 is a cylindrical tank, and the waste mountain load cell may be located under a plurality of protrusions formed on the periphery. In addition, the waste mountain weight measurement unit 300 may include three waste acid load cells, and the weight data measured by the three waste acid load cells may be summed in the load cell calculator to measure the weight of the waste acid. In this case, the number of load cells is exemplary, and the present invention is not limited thereto.

In addition, the system 1 of the present invention is located between the first waste acid supply valve located between the liquid tank unit 100 and the waste acid weighing unit 300 and the spent acid weighing unit 300 and the mixing unit 500 . It may include a second waste acid supply valve. Illustratively, the first waste acid supply valve and the second waste acid supply valve may be a solenoid valve, but is not limited thereto.

In addition, although not shown in the drawings, the control unit controls the weight of the spent acid supplied to the mixing unit 500 by controlling the first and second waste acid supply valves based on the weight data of the spent acid measured from the spent acid load cell. can do. In other words, the control unit controls the first waste acid supply valve in the open state and controls the second waste acid supply valve in the closed state until the weight measured from the spent acid load cell reaches a preset weight value.

Then, when the weight measured from the waste acid load cell reaches a preset weight value, the control unit controls the first waste acid supply valve to a closed state and controls the second waste acid supply valve to an open state to mix the waste acid of a preset weight It can be supplied to the unit 500 .

The fly ash supply unit 200 supplies the fly ash transferred from the hoist 11 to the fly ash weighing unit 400 . To this end, the fly ash supply unit 200 may include a housing 210 , a fly ash storage unit 220 , and a fly ash conveyor 230 .

The housing 210 may have a predetermined space in which the tone bag 12 in which the fly ash transported through the hoist 11 is stored is located. In addition, the housing 210 is located on the front of the housing 210, and when the tone bag 12 in which the fly ash is stored is dropped, the front door (not shown) that automatically opens and closes, and is located on the rear of the housing 210 may include a rear door (not shown) that automatically opens and closes when the stored tone bag 12 is dropped, and at least one slide damper that opens and closes when the fly ash stored in the tone bag 12 is loaded.

In other words, when the tone bag 12 is transported through the hoist 11, the front door and the rear door are opened so that the tone bag 12 is located inside the housing 210, and then the front door and the rear door are closed. , the inside of the housing 210 is sealed, and when the fly ash is dripped, it is possible to prevent the generated dust from leaking to the outside.

In addition, the housing 210 has a slide damper located at a lower portion thereof, and when the fly ash stored in the tone bag 12 is dropped into the fly ash storage unit 220 , the slide damper may be opened.

In addition, the system 1 of the present invention may transport the toneback 12 through two hoists 11 , respectively, and a slide damper may be located at a position corresponding to each toneback 12 .

In addition, the control unit may open only the slide damper located at a position corresponding to the tone bag 12 in which dripping is performed, and maintain the closed state of the slide damper located at a position corresponding to the tone bag 12 which is not loaded.

The fly ash storage unit 220 is located in the lower portion of the housing 210, the fly ash dropped from the tone bag 12 may be stored. Illustratively, the fly ash storage unit 220 may be configured as a prismatic tank, and may be provided with a fly ash water level measuring device to issue an alarm to an operator when the fly ash level is above or below a predetermined water level.

The fly ash conveyor 230 may be located under the fly ash storage unit 220 to supply the fly ash stored in the fly ash storage unit 220 to the fly ash weight measurement unit 400 . Illustratively, the fly ash conveyor 230 may be a screw conveyor, but is not limited thereto.

The fly ash weight measurement unit 400 may store the fly ash supplied from the fly ash supply unit 200 and measure the weight of the stored fly ash. In addition, the fly ash weight measurement unit 400 may include at least one fly ash load cell to measure the weight of the stored fly ash.

Illustratively, the fly ash weighing unit 400 may be configured as a prismatic tank, and the fly ash load cell may be located under the protrusion formed on each circumferential surface. In other words, the fly ash weight measurement unit 400 may include four fly ash load cells, and the weight data measured by the four fly ash load cells may be summed in the load cell calculator to measure the weight of the fly ash. In this case, the number of load cells is exemplary, and the present invention is not limited thereto.

In addition, the system 1 of the present invention is located between the first fly ash supply valve and the fly ash weighing unit 400 and the mixing unit 500 located between the fly ash supply unit 200 and the fly ash weighing unit 400 . It may further include a second fly ash supply valve.

In addition, the controller may control the weight of the fly ash supplied to the mixing unit 500 by controlling the first and second fly ash supply valves based on the fly ash weight data measured from the fly ash load cell. In other words, until the weight measured from the fly ash load cell reaches a preset weight value, the control unit controls the first fly ash supply valve to the open state, and controls the second fly ash supply valve to the closed state.

Thereafter, when the weight measured from the fly ash load cell reaches a preset weight value, the control unit controls the first fly ash supply valve to the closed state, and controls the second fly ash supply valve to the open state to remove the fly ash of the preset weight. It may be supplied to the mixing unit 500 .

The mixing unit 500 corresponds to a configuration in which the waste acid supplied from the spent acid weighing unit 300 and the fly ash supplied from the fly ash weighing unit 400 are mixed and solidified as shown in FIGS. 1 and 2 . That is, it corresponds to a configuration in which a solidified mixed material is manufactured by mixing waste acid and fly ash.

In detail, the mixing unit 500 has a rectangular cylindrical body 510 having a fly ash inlet 511 and a mixed ash outlet 512 formed on one upper side and the other lower side, respectively, and the fly ash inlet 511 of the body portion 510. A nozzle unit 520 for spraying waste acid to the fly ash introduced through 530 , 540 , and a driving unit 550 for rotating the stirring units 530 and 540 may be included.

Also, the stirring units 530 and 540 may include a first stirring unit 530 and a second stirring unit 540 . The first stirring unit 530 is formed to protrude outward of the first driving shaft 531 rotated by the driving unit 550 and the first driving shaft 531 , and provided in plurality along the longitudinal direction of the body 510 . The first link part 532 and the first link part 532 may include a first paddle part 533 formed in a plate shape, respectively.

In addition, the second stirring part is formed to protrude outward of the second driving shaft 541 and the second driving shaft 541 rotated by the driving part 550 , and a plurality of second stirring parts are provided along the longitudinal direction of the body 510 . The second link part 542 and the second paddle part 543 respectively positioned at the ends of the second link part 542 and formed in a plate shape may be included.

The first and second paddle parts 533 and 543 are positioned to have a predetermined angle with respect to the vertical surface of the first or second drive shafts 531 and 541 so that the mixture is moved from one side to the other, At least one of the first and second paddle parts 533 and 543 is positioned to have a predetermined angle with respect to the vertical surface of the first or second driving shafts 531 and 541 so that the mixture is moved from the other side to one side. can do.

In addition, the first and second link portions 532 and 542 are respectively formed in a symmetrical shape of 180 degrees on a vertical line with respect to the first or second drive shafts 531 and 541, and adjacent first and second link portions 532 . , 542) and may be positioned to have a difference of 90 degrees.

In addition, the chelate resin supply unit 800 for supplying the chelate resin to the mixing unit 500 is further configured to control the mixing of heavy metals in the mixed material manufactured in the mixing unit 500 so that a good quality mixture is manufactured.

That is, in order to remove heavy metal ions mixed with fly ash, etc., a chelate resin such as polyaminocarboxylic acids, citric acid, polyphosphoric acid, etc. including EDTA is supplied to the mixing unit 500 .

The mixture conveyor 600 transports the solidified mixture supplied from the mixing unit 500 . In addition, referring to FIG. 1 , the mixture conveyor 600 includes a moving screw 610 for moving the mixture and a screw motor 620 for rotating the moving screw 610 , and as the moving screw 610 rotates, The mixture may be moved from one side to the other.

With the above configuration, the operator refers to the moisture content of the mixture according to the mixing ratio of the weight of the waste acid and the weight of the fly ash, and the operator can set the weight of the fly ash and the weight of the waste acid corresponding to the moisture content of the mixture desired by the operator, By setting, the control unit controls each configuration as mentioned above.

The gas processing unit 700 corresponds to a configuration that removes ammonia from the gas discharged from the reaction process in the mixing unit 500 and discharges the ammonia.

Chemicals such as HCl, SOx (slaked lime, liquid or powder form), and NOx (urea water) are injected to remove contaminants from fly ash generated from the incinerator. When waste acid is added to existing unreacted alkali chemicals, for example, Ca(OH) _{2 , CaClOH, ammonia (NH 3} ) present in the fly ash is generated, and ammonia ( NH ₃ ) is removed and discharged to the outside to control the emission of environmental pollutants.

As shown in FIG. 3, the gas processing unit 700 causes the gas mixed with the ammonia gas discharged from the mixing unit 500 to flow upward, and the sulfuric acid solution (phosphoric acid solution) flows downward from the upper end, The upper housing 710 for discharging the ammonia gas from the upper end to the outside, and the lower housing 720 for communicating with the lower end of the upper housing 710 and discharging to the outside while storing the ammonium sulfate solution (ammonium phosphate solution) ) is characterized in that it contains.

In addition, it is appropriate that the partition wall 730 is formed in a zigzag pattern in the upper housing 710 so that the reaction time between the ammonia-containing gas and the sulfuric acid solution (phosphoric acid solution) is long. In the case of the ammonium sulfate or ammonium phosphate produced in this way, it becomes possible to utilize it as a material such as fertilizer.

As such, in the upper housing 710, a partition wall 730 for extending the contact time between the downward ammonium sulfate (Q) and the upward gas (g) is formed in a zigzag manner so that the downward ammonium sulfate is formed in a plurality of The gas moving upward while riding on the partition wall 730 is also made upward on the plurality of partition walls 730 so that the contact time between the sulfuric acid solution (phosphoric acid solution) and the gas is prolonged.

In addition to this, as shown in FIGS. 4 and 5, the partition wall 730 has flat plate parts 731 on both sides, and vortex forming parts 732, 734, 735 for forming vortices while communicating up and down in the central part. characterized.

The vortex forming part (732, 734, 735) is connected to the flat plate part (731), a plurality of flow paths (732-1) are formed, and a base plate (732) from which a rotating shaft (733) is protruded from the central part; A plurality of second flow passages 734-1 are formed by interlocking rotation on the rotation shaft 733, and a plurality of vortex forming pins 734-2 protruding downwardly between the second flow passages 734-1 are formed and stacked. It is characterized in that it comprises a rotating plate 734, which protrudes from the base plate 732, and a guide plate 735 for guiding a sulfuric acid solution or a phosphoric acid solution to the rotating plate 734.

The base plate 732 may be integrally configured to be connected to the flat plate portion 731 , and a plurality of flow paths 732-1 are formed in the base plate 732 to allow gas to pass through the flow passages 732 - 732 . It can be upgraded through 1).

The rotating plate 734 is configured to rotate and interlock on the rotating shaft 733 fixed to the base plate 732, and is configured by stacking a plurality on the rotating shaft 733. In the drawing, two rotating plates 734 are stacked. An example is shown. In the rotation shaft 733 , the rotation plate 734 may be rotationally interlocked in the same direction, in the opposite direction, and at different speeds according to hydraulic pressure.

A plurality of second flow passages 734-1 are formed in the rotary plate 734, and a plurality of vortex forming pins 734-2 protruding downwardly between the second flow passages 734-1 are formed. A vortex is formed in the fluid flowing in the transverse direction by the vortex-forming pin 734-2, and the rotating plate 734 is rotated by the collision pressure between the fluid and the vortex-forming pin 734-2, and this rotation As the position of the flow path 732-1 and the second flow path 734-1 of each rotating plate 734 is changed, the vortex forming efficiency is increased even for the upward gas, and in the case of a fluid flowing in the transverse direction, the vortex forming pin (734-2) increases the efficiency of forming a vortex by increasing the efficiency of forming a vortex, so that the contact between the fluid and the gas can be made longer due to the collision of the fluctuating vortex and the vortex, thereby further increasing the ammonia separation efficiency from the gas.

The guide plate 735 is configured as a pair and protrudes from the base plate 732 and surrounds the rotation plate 734 to guide the sulfuric acid solution or phosphoric acid solution to the rotation plate 734 .

Meanwhile, in the system 1 of the present invention, as shown in FIGS. 6 and 7 , an example in which a foreign material remover 800 is further configured at the front end of the liquid tank part 100 is presented. The reason that the foreign material remover 800 is further configured in this way is that when the waste acid contains a large amount of foreign matter including oil, the quality of the mixed material is lowered, and the nozzle unit 520, etc. is clogged, which causes equipment failure. There may be a problem, so that the foreign matter remover 800 is further configured at the front end of the liquid tank part 100 so that foreign substances including oil and the like are removed from the waste acid.

The foreign material remover 800 of this embodiment includes a housing 810 in which an inlet line 811 through which waste acid is introduced is formed on one side, a circulating flow is formed in the introduced waste acid, and a first foreign material formed on the lower surface of the housing 810 . It includes a discharge line 820, a partition wall 831 that divides the housing 810 up and down, and opens at the center, and an overflow wall 832 integrally protruding upward from the opening of the partition wall 831. The storage chamber 840 is formed at the upper end of the housing 810 by the dividing unit 830 and the discharge line 841 through which the waste acid from which foreign substances such as oil is removed is discharged on one side by the dividing unit 830. and an oil storage chamber 850 formed on one side of the storage chamber 840 and having a second foreign material discharge line 851 formed therein.

In addition, the partition part 830 is characterized in that the heating wire is built in, and the partition part 830 is heated by the application of power.

The housing 810 has a cylindrical shape, and the waste acid introduced therein circulates as shown in FIG. 7 . The inlet line 811 is formed on one side of the housing 810 and is preferably configured in a tangential direction of the housing 810 . With this configuration, the waste acid introduced into the inlet line 811 circulates in the housing 810, thereby generating a hydrocyclon and a vortex.

The centrifugal force is applied to the waste acid by the rotational movement of the fluid, and separation is made according to the specific gravity. In the core (C) formed by the vortex, a descending force acts as described below, and the separated oil and foreign substances It is to be discharged from this core to the bottom.

In addition, as shown in FIG. 6 , it is preferable that the lower surface of the housing 810 forms an inclination gradient such that the diameter becomes narrower toward the center. In addition to making it easy to slide in the direction of the first foreign material discharge line 820, the flow rate increases as the diameter decreases. This is to allow the oil component O1 to easily flow out to the first foreign material discharge line 820 .

The partition part 830 divides the housing 810 up and down, and includes a partition wall 831 opened at the center and an overflow wall 832 integrally protruding upward from the opening of the partition wall 831. The storage chamber 840 is formed at the upper end of the housing 810 by the compartment 830 and has a discharge line 841 through which the waste acid from which foreign substances including oil are removed is formed on one side. do.

That is, the waste acid rising while forming a circulation in the housing 810 overflows along the overflow wall 832 and is stored in the storage chamber 840 . In the storage chamber 840, the oil fraction O2 that is separated by centrifugal force, but is not discharged to the first foreign material discharge line 820 or is not separated by centrifugal force, is suspended, and is stored in the storage chamber 840 in this way. In order to facilitate the separation of oil from the waste acid, a heating wire is embedded inside the partition part 830, and although the reference number is not shown, the heating wire is connected to a power source by the application of power to the partition part 830. is to generate heat.

In this way, the partition portion 830 is heated so that the oil component (O2) is more easily separated from the waste acid stored in the storage chamber 840 . In addition, the separation of the oil (O1) by centrifugal force even in the waste acid circulating in the lower part of the partitioning part 830 due to the heat generated by the partitioning part 830 is made easier.

As shown in FIG. 6, the oil O2 suspended in the storage chamber 840 flows into the oil storage chamber 850 and is discharged to the outside through the second foreign material discharge line 851, as shown in the figure. However, it is possible to induce the oil (O2) suspended in the storage chamber 840 to the oil storage chamber 850 by the configuration of a separate skimmer, and in the case of spent acid flowing into the storage chamber 840 as shown in FIG. A circulating flow is also formed in the waste acid that is introduced while forming a circulating flow and is stored in the storage chamber 840, and in this circulating process, the oil O2 is induced to the oil storage chamber 850 by centrifugal force, and the oil storage chamber 850 has As shown in the drawing, the induction end 351 is further formed so that the oil is more smoothly guided to the oil storage chamber 850 in the circulating process.

When explaining the operating relationship of this embodiment, as shown in FIG. 7 , the inlet line 811 is configured in the tangential direction of the housing 810 , so that the water obtained through the inlet line 811 naturally forms a circulation without any power. do.

Due to this circulation, the movement path of the particles having a higher specific gravity than water moves to the side wall of the housing 810 by centrifugal force, rides on the lower surface of the housing 810 and flows out into the first foreign material discharge line 820 .

In addition, the circulating flow formed in the housing 810 generates a vortex, and in the center of the vortex, a core (C) portion that rotates at a speed more than twice the tangential flow rate is generated. ), which is a cavity connected from the opening located on the upper surface of the overflow wall 832 to the first foreign material discharge line 820, and is a portion in which a strong suction force is generated in the downward direction.

Therefore, in the case of the movement path of particles with a specific gravity smaller than water and oil (O1), they move to the center by centripetal force opposite to the movement path of particles with a specific gravity greater than water, eventually reaching the core (C) and removed by the downward suction force. 1 It is discharged to the foreign material discharge line (820).

In addition, the movement path of particles having a specific gravity similar to that of water and the oil component (O2) not separated by centrifugal force moves according to the flow of water. It is stored in the storage chamber 840 , and circulation is also formed in the storage chamber 840 .

In this process, the oil (O2) is separated from the waste acid stored in the storage chamber 840 by the heat and circulation of the partitioning part 830 and floats, and the suspended oil flows into the oil storage chamber 850 and flows into the second It is to be discharged to the outside through the foreign material discharge line (851).

As seen above, the foreign matter remover 800 of this embodiment separates the particles from water by centrifugal force and gravity due to hydrocyclon when the specific gravity of the particles is greater than that of water through non-powered circulation, and the specific gravity is higher than that of water. In the case of small particles and oil, centripetal force and downward suction force by vortex are used to separate particles and oil from water. In the case of oil that is not separated by centrifugal force, it is stored and exposed to heat by flotation. By separating the oil component (O1, 2) by centrifugal force and heat together with the foreign material (S) contained in the waste acid by one device, the separation efficiency of the oil component and the foreign material is doubled.

Although preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements by those skilled in the art using the basic concept of the present invention as defined in the following claims are also provided. is within the scope of the

1: system 100 of the present invention: liquid tank part
200: fly ash supply unit 300: waste acid weight measurement unit
400: fly ash weight measurement unit 500: mixing unit
600: mixed material conveyor 700: gas processing unit

Claims (7)

a liquid tank for supplying waste acid;
hoists for transporting fly ash;
a fly ash supply unit for supplying fly ash transferred from the hoist;
a waste acid weight measurement unit for measuring the weight of the spent acid supplied from the liquid tank unit;
a fly ash weight measurement unit for measuring the weight of the fly ash supplied from the fly ash supply unit;
a mixing unit for solidifying by mixing the spent acid supplied from the waste acid weighing unit and the fly ash supplied from the fly ash weighing unit;
a gas processing unit for removing ammonia from the gas discharged from the mixing unit and discharging;
a mixture conveyor for transferring the solidified mixture supplied from the mixing unit; including,
the mixing part
drive unit; A rectangular cylindrical body in which a fly ash inlet and a mixed material outlet are formed in the upper and the other lower portions, respectively; a first stirring unit connected to the driving unit and rotating in one direction; a second stirring unit positioned to overlap the first stirring unit and rotating in the opposite direction to the first stirring unit; and a nozzle unit for spraying waste acid into the fly ash introduced through the fly ash inlet of the body,
A foreign material remover is configured at the front end of the liquid tank, the foreign material remover,
A housing having an inlet line through which waste acid is introduced is formed on one side to form a circulating flow in the inlet waste acid, a first foreign material discharge line formed on a lower surface of the housing, and a partition wall that divides the housing up and down and opens at the center and a partition including an overflow wall protruding integrally upward from the opening of the partition wall, and a discharge line formed at the upper end of the housing by the partition and discharging waste acid from which oil containing foreign substances is removed on one side. a storage chamber formed thereon, and an oil storage chamber formed on one side of the storage chamber and having a second foreign material discharge line formed therein;
A mixed material manufacturing system using waste acid and fly ash, characterized in that the compartment has a built-in heating wire and the compartment generates heat by the application of power.
delete The method of claim 1,
A mixed material manufacturing system using spent acid and fly ash, characterized in that the chelate resin supply unit is further configured to supply the chelate resin to the mixing unit.
delete delete The method of claim 1,
The gas treatment unit allows the gas discharged from the mixing unit to flow upward from the lower end, and the sulfuric acid solution or phosphoric acid solution from the upper end to flow downward, and the gas from which ammonia gas has been removed from the upper end is discharged to the outside. and a lower housing communicating with a lower end of the upper housing and discharging to the outside while storing an ammonium sulfate solution or an ammonium phosphate solution, and a sulfuric acid solution or a phosphoric acid solution and a gas that flows upward in the interior of the upper housing Mixture using waste acid and fly ash, characterized in that the partition wall is formed in a zigzag pattern so as to take a long contact time, and the partition wall has flat plate parts on both sides and a vortex forming part that forms a vortex while communicating up and down in the central part. manufacturing system.
7. The method of claim 6,
The vortex forming part,
A plurality of flow paths are formed while being connected to the flat plate, and a base plate with a rotating shaft protruding from a central portion thereof, and a plurality of second flow paths are formed while interlocking rotation on the rotating shaft, and a plurality of vortexes projecting downward between the second flow paths are formed. A mixed material manufacturing system using waste acid and fly ash, comprising: a rotating plate stacked while forming a pin; and an induction plate protruding from the base plate and guiding a sulfuric acid solution or a phosphoric acid solution to the rotating plate.

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