ES2555676B1 - Procedure to transform used automotive filters classified as hazardous waste into urban assimilable - Google Patents

Abstract

Procedure to transform used automotive filters classified as hazardous waste into urban assimilable waste. # Developed in a first phase the filter pressing and recovery of used oil and in a second phase the cleaning of the filter by ultrasound, according to the principle of high waves frequency, from 20 KHz, produced in the liquid in which the filters used are submerged, providing the nature of the ultrasonic energy the physical thrust required to break the mechanical and ionic bonds that establish the particles lodged on the surface. Due to the frequency of work and the density of the liquid, continuous depressions and overpressures are formed that appear and disappear in microseconds in the liquid, causing the water molecule to implode approximately 40,000 times per second, producing a micro brush that acts around the used filters , removing dirt from the surface of used filters even at the most difficult points of access.

Description

PROCEDURE FOR TRANSFORMING AUTOMOTIVE FILTERS

USED CATALOGED AS HAZARDOUS WASTE IN

ASSOCIABLE TO URBAN

OBJECT OF THE INVENTION

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The present invention relates to a process by which used automotive filters cataloged as hazardous waste are transformed into urban assimilable, whereby the filter steel can be reused and the recovered recovered oil regenerated. Industrial waste similar to urban ones is understood to be those generated by industries and workshops that, due to their minimum amount and urban area of production, as well as their low toxicity, are assimilated and managed together with urban ones

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It comes to solve the recovery of the steel of the automotive filter for a new use and the oil used for its regeneration without generating new waste with the great advantage that in its treatment it uses products that are not harmful to the environment. The advantages over what is already known are the following: It is a clean procedure in which no residue is generated • Ultrasonic cleaning of the highest quality at the surface level is achieved, regardless of whether the pieces have a difficult configuration or internal recesses.

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Water and detergent savings: The consumption of cleaning detergents is minimal, since it works at very low concentrations of 2%. Water consumption is greatly reduced by immersion washing.

Risk-free cleaning: Ultrasonic cleaning, due to its characteristics, is a risk-free cleaning for the person and the environment of the work area. The use and contact with dangerous products such as solvents, acids and very alkaline detergents is avoided.

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BACKGROUND OF THE INVENTION

Although no invention identical to that described has been found

by the inventor, we present below the documents found that

they reflect the state of the art related to it.

Thus, document ES2124879T3 refers to a regeneration process of used lubricating oils, which comprises the following successive treatment steps:

a) homogenization of the oils collected and their disposal when they do not meet one of the following tests:

-

chlorine test with flame (chlor test),

-

fuel oil presence test by the spot test (Drop test),

-

presence test of fatty acid with soda (Fat test);

b) preheating in which the oils to be regenerated are carried at a temperature between 1400 and 160 ° C;

e) addition of sodium hydroxide in aqueous solution at a rate of 1 to 3% pure base, by mass of lubricating oil;

d) dehydration and extraction of light hydrocarbons by expansion (flash); e) extraction and recovery of diesel (stripping);

f) removal of impurities by fractional vacuum distillation that ensures separation in lubricating basic oils, on the one hand, and in waste that concentrates all impurities, on the other hand.

In this case the used oil is regenerated, but the

filter steel

ES2049329T3 proposes a device to continuously recover

a useful petroleum product from a residual lubricating oil, which

it comprises: oil supply means by which the said apparatus is fed with the residual oil; a boiler (18) fluidly connected to said oil supply means and

adapted to receive residual oil from them; a heater

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arranged to heat the residual oil in said boiler, under a pressure substantially equal to atmospheric, to a temperature in the range 316-427 o C, such that the lighter hydrocarbons of the residual oil are volatilized, but such that the hydrocarbons heavier ones do not volatilize, thus trapping contaminants with them; the oil feed means including level control means for controlling the level of oil inside the boiler; the boiler which provides a single stage heating and separating means for the separation of the lightest volatilized hydrocarbons from the non-volatized heavy hydrocarbons and the contaminants, boiler which includes a first discharge duct for the lighter volatilized hydrocarbons and a second discharge duct for heavy non-volatized hydrocarbons.

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In this used. case what I know recover are the oil hydrocarbons

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Document ES8300351 A 1 describes a process for refining used lubrication oil, the used oil is contacted with one or more organic solvents under supercritical conditions of temperature and pressure to produce a phase of extracted material. part or all of the material removed from the other products is separated, hydrogenated, the organic solvent is removed from the material extracted before or after the hydrogenation, and finally a product that is made up of hydrogenated oil is recovered, the organic solvent that it is extracted it can be recycled, making it return to the reaction zone.

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Nor does it refer here to the recovery of steel.

Conclusions: As can be seen from the research carried out, none of the documents found solves the problems raised as the proposed invention does.

DESCRIPTION OF THE INVENTION

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The procedure for transferring used automotive filters cataloged as hazardous waste into urban assimilables object of the present invention consists of two phases, the first one being the pressing of the used filter as well as the recovery of the used oil and in the second the cleaning of the filter by ultrasound, characterized in that said first phase consists of the following stages:

First stage of the first phase: Dumps of used filters are carried out in a receiving hopper.

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Second stage of the first phase: A conveyor carries the used filters until they are deposited in a press.

Third stage of the first phase: The press works by pressing the filters and recovering the excess oil that is deposited in a hopper where both the excess oil from the press and the excess oil from the storage hopper are recovered.

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Fourth stage of the first phase: The press opens its doors located at the bottom, depositing the pressed filters in a conveyor for shipment to the cleaning container.

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Fifth stage of the first phase: Said conveyor from the previous stage thanks to its automation deposits the filters in the receiving container.

Sixth stage of the first phase: Once the maximum level of excess oil has been detected in the receiving hoppers, the drain pump starts operating by depositing said oil in a separate tank.

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The second phase of the procedure corresponds to the cleaning of the filters by ultrasound according to the principle of high frequency waves, from 20 KHz, produced in the liquid in which the used filters are submerged, providing the nature of the ultrasonic energy the physical thrust required to break the mechanical and ionic bonds that establish very small particles lodged on the surface.

Due to the frequency of work and the density of the liquid, continuous depressions and overpressures that appear and disappear in microseconds in the liquid are fused, causing the water molecule to implode approximately 40,000 times per second, producing a microbrush that acts around the used filters , eliminating this effect, which is called ultrasonic cavitation, dirt from the surface of the filters used even at the most difficult points of access, reaching the internal areas that are not accessible with other cleaning means.

This second phase of ultrasonic cleaning of the filters used

It consists of the following stages:

First stage of the second phase: The basket with the pressed filters is inserted into the ultrasonic bath

Second stage of the second phase: Cleaning is activated by

ultrasound by means of the water solution and degreaser.

Third stage of the second phase: Once the time has elapsed

indicated proceed to the removal of the tray with filters already clean of

any impurity, the small remains of used oils coming from

The cleaning will be removed from the surface using the skimmer and sent

to the storage tank.

Fourth stage of the second phase: The storage of

filters for their management as waste similar to urban, and thus be able to

Again reuse your steel.

The technical characteristics of the elements involved in the present invention are the following:

Hopper + stainless steel conveyor with P.V.C band and

0.55 kW reduction motor. (Figure 1)

Press, being its lacquered steel structure with hydraulic system and

Supported over tubular bench. (figure 2)

• Outlet conveyor assembly with excess oil collection

on tubular structure and stainless steel plates (figure 3).

5 • Tanks 2 units with stainless steel evacuation pump and a 0.37 kW excess oil evacuation pump. (figure 4).

Power: 400V

• Heating resistance: 9000 W. 10 Ultrasound Power: 5100W (10200W p-p).

• 2 ultrasonic generators with an output power of 5100W (1 0200W p-p). Working frequency: Multifrequency 40-90 Khz.

3 submersible emitters of 1700W each. 15 • Cuba built in stainless steel AISI 304 of 2.5 mm.

• K-Flex Duct Net 30 mm thermo-acoustic insulation. External paneling in stainless steel AISI 304 of 1.5 mm.

• Pneumatic lifting platform for loading, batting and unloading with

350 kg capacity 20 • Ball valve for water inlet of W 'and drain of 1W'.

• Height-adjustable silentblock legs Stainless steel end-of-day heat-covered lid.

Integrated system for the separation of lubricants and oils. Eliminate

residues on the surface of the ultrasonic tank, keeping the cleaning equipment in perfect condition.

• Cuba built in stainless steel AISI 304 of 3 mm.

s External paneling in stainless steel AISI 304 of 1.5 mm. K-Flex Duct Net 30 mm thermo-acoustic insulation.

•

Ball valve for 1 "water inlet and 2" drain.

•

Height-adjustable silentblock legs End-of-day heat-insulated stainless steel lid.

10 • Oil separator (skimmer) model Mighty mini with a separation capacity of 8 to 12 liters / hour. Inclined bottom for easy cleaning.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to better understand the present specification, there are attached drawings representing a preferred embodiment of the present invention.

Figure 1: Schematic representation of the procedure

Figure 2: Schematic representation of microscopic cleaning.

The numerical references appearing in the figures correspond to the following constituent elements of the present invention:

one.

Reception Hopper

2.

Press

3.

Pressed product outlet

Four.

Deposit

5.

Oil

6.

Oil receiving hoppers

7. Oil drain pump

8. Ultrasonic bathtub

5 9. Water and degreaser

10 tray

DESCRIPTION OF A PREFERRED EMBODIMENT

A preferred embodiment of the process for transforming used automotive filters classified as hazardous waste into assimilable

10 urban can be based on the development of two phases, performing in the first one the pressing of the used filter as well as the recovery of the used oil and in the second the cleaning of the filter by ultrasound, characterized by said first phase of the following stages :

First stage of the first phase: Dumps of used filters 15 are carried out in a receiving hopper (1).

Second stage of the first phase: A conveyor carries the used filters until they are deposited in a press (2).

Third stage of the first phase: The press (2) works by pressing

the filters and recovering the excess oil that is deposited in

20 a hopper where both the excess oil from the press (2) and the oil (5) remaining from the storage hopper are recovered.

Fourth stage of the first phase: The press (2) opens its floodgates

located at the bottom, depositing the pressed filters on a conveyor for shipment to the cleaning container.

Fifth stage of the first phase: Said trans¡: x> rtador of the previous stage thanks to its automation deposits the filters in the receiving container.

Stage six of the first phase: Once the maximum level of oil (5) remaining in the receiving hoppers (6) has been detected, the drain pump (7) starts operating by depositing said oil (5) in a separate tank (4) .

The second phase of the procedure corresponds to the cleaning of the

Ultrasound filters according to the principle of high frequency waves, from

of 20 KHz, produced in the liquid in which the used filters are submerged,

providing the nature of the ultrasonic energy the physical thrust required to break the mechanical and ionic bonds that establish the

very small particles lodged on the surface.

Due to the frequency of work and the density of the liquid, they form

continuous depressions and overpressures that appear and disappear in microseconds in the liquid, causing the water molecule to implode

approximately 40,000 times per second, producing a microbrush that acts around the filters used, eliminating this effect, which it receives

the name of ultrasonic cavitation, the dirt of the surface of the filters used even in the most difficult access points, reaching the internal areas that are not accessible with other means of cleaning.

This second phase of ultrasonic cleaning of the filters used

It consists of the following stages:

First stage of the second phase: The basket with the filters is introduced

Pressed in the ultrasonic bathtub (8)

Second stage of the second phase: Cleaning is activated by

ultrasound using water solution and degreaser (9).

Third stage of the second phase: Once the time has elapsed

indicated, the tray (10) is removed with the filters already clean

of any impurity, the small remnants of used oils coming

of the cleaning will be extracted from the surface using the skimmer and

5 sent to storage warehouse.

Fourth stage of the second phase: The filters are stored for management and as waste assimilable to urban, and thus the power

Again reuse your steel.

Claims (1)

1.-Procedure to transfer used automotive filters classified as hazardous waste in urban assimilable, developed in two phases, performing in the first the pressing of the used filter as well as the recovery of used oil and in the second cleaning of the filter by ultrasound , characterized in that said first phase consists of the following stages: The first stage of the first phase: Dumps of the fiHros used in a receiving hopper (1 l. Second stage of the first phase: A conveyor carries the used filters until they are deposited in a press (2). Third stage of the first phase: The press (2) works by pressing the filters and recovering the excess oil that is deposited in a hopper where both the excess oil from the press (2) and the oil (5) remaining from the storage hopper are recovered. Fourth stage of the first phase: The press (2) opens its doors located at the bottom, depositing the pressed filters on a conveyor for shipment to the cleaning container. Fifth stage of the first phase: Said conveyor from the previous stage thanks to its automation deposits the filters in the receiving container.  Sixth stage of the first phase: Once the maximum level of oil (5) left over in the receiving hoppers (6), the drain pump (7) comes into operation by depositing said oil (5) in a tank (4)  Independent. The second phase of the procedure corresponds to the cleaning of the Ultrasound filters according to the principle of high frequency waves, from of 20 KHz, produced in the liquid in which the used filters are submerged,

providing the nature of the ultrasonic energy the physical thrust required to break the mechanical and ionic bonds that establish the very small particles lodged on the surface.

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Due to the frequency of work and the density of the liquid, continuous depressions and overpressures are formed that appear and disappear in microseconds in the liquid, causing the water molecule to implode approximately 40,000 times per second, producing a microbrush that acts around the used filters , eliminating this effect, which receives the name of ultrasonic cavilation, dirt from the surface of the filters used even at the most difficult points of access, reaching the internal areas that are not accessible with other cleaning means.

This second phase of ultrasonic cleaning of the filters used consists of the following stages:

First stage of the second phase: The basket with the filters is introduced

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Pressed in the ultrasonic bathtub (8)

Stage

second from the second phase: Be active the cleaning by

ultrasound using water solution and degreaser (9).

Third stage of the second phase:

Once the time has elapsed

indicated, the tray (10) is removed with the filters already clean

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of any impurity, the small remnants of used oils coming

of the

cleaning will be gone gone of the surface by he skimmer and

sent to storage warehouse.

Fourth stage of the second phase: The storage of

filters for their management as waste similar to urban, and thus be able to

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Again reuse your steel.