ES2726177A1 - PERLITA FILTER (Machine-translation by Google Translate, not legally binding) - Google Patents
PERLITA FILTER (Machine-translation by Google Translate, not legally binding) Download PDFInfo
- Publication number
- ES2726177A1 ES2726177A1 ES201930612A ES201930612A ES2726177A1 ES 2726177 A1 ES2726177 A1 ES 2726177A1 ES 201930612 A ES201930612 A ES 201930612A ES 201930612 A ES201930612 A ES 201930612A ES 2726177 A1 ES2726177 A1 ES 2726177A1
- Authority
- ES
- Spain
- Prior art keywords
- filter
- candles
- vibrator
- perlite
- lower space
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 235000019362 perlite Nutrition 0.000 claims abstract description 19
- 239000010451 perlite Substances 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims abstract description 7
- 239000012530 fluid Substances 0.000 claims abstract description 4
- 229910001562 pearlite Inorganic materials 0.000 claims description 6
- 230000004913 activation Effects 0.000 claims 1
- 230000003213 activating effect Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000001914 filtration Methods 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/28—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed moving during the filtration
- B01D24/30—Translation
- B01D24/305—Vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/70—Regenerating the filter material in the filter by forces created by movement of the filter element
- B01D29/72—Regenerating the filter material in the filter by forces created by movement of the filter element involving vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/002—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with multiple filtering elements in parallel connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
- B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
- B01D24/16—Upward filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/38—Feed or discharge devices
- B01D24/42—Feed or discharge devices for discharging filtrate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/46—Regenerating the filtering material in the filter
- B01D24/4668—Regenerating the filtering material in the filter by moving the filtering element
- B01D24/4673—Regenerating the filtering material in the filter by moving the filtering element using rotary devices or vibration mechanisms, e.g. stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/70—Regenerating the filter material in the filter by forces created by movement of the filter element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/04—Supports for the filtering elements
- B01D2201/043—Filter tubes connected to plates
- B01D2201/0446—Filter tubes connected to plates suspended from plates at the upper side of the filter elements
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
Abstract
Description
DESCRIPCIÓNDESCRIPTION
Filtro de perlitaPerlite filter
SECTOR DE LA TÉCNICASECTOR OF THE TECHNIQUE
La presente invención se refiere a un filtro que comprende una serie de elementos de perlita expandida. Está diseñado para la filtración de agua, especialmente para piscinas colectivas, aunque puede utilizarse en diferentes aplicaciones, como en la filtración del agua de consumo y la industrial, sobre todo en industria alimentaria.The present invention relates to a filter comprising a series of expanded perlite elements. It is designed for water filtration, especially for collective pools, although it can be used in different applications, such as in the filtration of drinking water and industrial water, especially in the food industry.
ESTADO DE LA TÉCNICASTATE OF THE TECHNIQUE
Se conocen varios modelos de filtros mediante arenas o vidrio, que comprenden una o más candelas o colectores de filtrado, y un material granulado, como puede ser una arena de cuarzo, que ayuda a retener las partículas. La candela o colector impide la salida de la arena, y ésta se asienta para dejar pasos reducidos que retienen las partículas a filtrar.Several models of filters are known by sands or glass, which comprise one or more candles or filter collectors, and a granulated material, such as a quartz sand, which helps retain particles. The candle or collector prevents the exit of the sand, and this one settles down to leave reduced passages that retain the particles to filter.
Sin embargo, una operación bastante frecuente es el contralavado, en la que se necesita enviar agua en sentido inverso, limpiando el medio filtrante y regenerando el filtro. Esta agua es desechada, por lo que debe ser repuesta, aumentando el consumo de la instalación.However, a fairly frequent operation is backwashing, in which water needs to be sent in reverse, cleaning the filter media and regenerating the filter. This water is discarded, so it must be replaced, increasing the consumption of the installation.
El solicitante no conoce ninguna solución que ofrezca las ventajas de la invención.The applicant does not know of any solution that offers the advantages of the invention.
BREVE EXPLICACIÓN DE LA INVENCIÓNBRIEF EXPLANATION OF THE INVENTION
La invención consiste en un filtro de perlita que permite resolver estos problemas y otros añadidos. Para ello, se presentan diferentes versiones según las reivindicaciones. The invention consists of a perlite filter that allows solving these problems and other additions. For this, different versions are presented according to the claims.
El filtro de perlita es del tipo que comprende una carcasa con una entrada inferior de líquido, una salida superior de líquido y una serie de candelas dispuestas entre ambas. Preferiblemente las candelas están formadas por un muelle recubierto de una manga filtrante. La serie de candelas define un espacio inferior entre la entrada y las candelas que comprende partículas de perlita expandida. Además, el filtro comprende un vibrador de las candelas que asiste en su regeneración.The perlite filter is of the type comprising a housing with a lower liquid inlet, an upper liquid outlet and a series of candles arranged between them. Preferably the candles are formed by a spring covered with a filter sleeve. The series of candles defines a lower space between the entrance and the candles comprising particles of expanded perlite. In addition, the filter comprises a candle vibrator that assists in its regeneration.
Preferiblemente, el filtro comprende una boca de hombre de acceso al espacio inferior, que facilita el mantenimiento y la sustitución de la perlita.Preferably, the filter comprises a manhole for access to the lower space, which facilitates the maintenance and replacement of the pearlite.
La regeneración puede ser manual o comprender un autómata configurado para regenerar el filtro mediante el corte de fluido y la activación del vibrador.The regeneration can be manual or comprise an automaton configured to regenerate the filter by cutting the fluid and activating the vibrator.
En una realización preferida, las candelas están soportadas en una placa conectada al vibrador.In a preferred embodiment, the candles are supported on a plate connected to the vibrator.
Una de las principales ventajas de esta invención es que, al utilizar un medio filtrante regenerativo, en este caso la perlita expandida, se ha adecuado un sistema que no necesita hacer contralavados, ahorrando así un 90% aproximadamente de agua para su funcionamiento en comparación con los filtros convencionales de sílex o vidrio.One of the main advantages of this invention is that, by using a regenerative filter medium, in this case the expanded perlite, a system that does not need to backwash has been adapted, thus saving approximately 90% of water for its operation compared to conventional flint or glass filters.
También cabe destacar que el grado de filtración es de hasta 1micra en comparación con los 20-40micras de los filtros convencionales.It should also be noted that the degree of filtration is up to 1 micron compared to 20-40 microns of conventional filters.
En cuanto a espacio ocupado, su volumen es aproximadamente la mitad de los filtros convencionales, facilitando incluso su substitución en instalaciones existentes. As for occupied space, its volume is approximately half of the conventional filters, facilitating even its replacement in existing installations.
El proceso de mantenimiento es de tan solo una operativa de unos minutos (15’) cada 4 semanas, a diferencia de los filtros convencionales que normalmente precisan de operativas de 5’ dos veces por semana.The maintenance process is only one operation of a few minutes (15 ’) every 4 weeks, unlike conventional filters that normally require 5’ operations twice a week.
El filtro está construido en acero al carbono, que a diferencia de los convencionales se puede reciclar al final de su vida útil, ya que los segundos son de fibra de vidrio.The filter is made of carbon steel, which, unlike conventional ones, can be recycled at the end of its useful life, since the latter are made of fiberglass.
Otras variantes se describirán más adelante.Other variants will be described later.
DESCRIPCIÓN DE LOS DIBUJOSDESCRIPTION OF THE DRAWINGS
Para una mejor comprensión de la invención, se incluye la siguiente figura.For a better understanding of the invention, the following figure is included.
Figura 1 y única: sección de un ejemplo de filtro, apreciándose el interior de la carcasa.Figure 1 and only: section of an example filter, showing the inside of the housing.
MODOS DE REALIZACIÓN DE LA INVENCIÓNEMBODIMENTS OF THE INVENTION
A continuación, se pasa a describir de manera breve un modo de realización de la invención, como ejemplo ilustrativo y no limitativo de ésta.Next, an embodiment of the invention will be briefly described as an illustrative and non-limiting example thereof.
El filtro de la figura parte de una carcasa (1) exterior, de acero u otro material adecuado, con patas o elementos de apoyo preferiblemente regulables. La carcasa (1) posee una entrada (2) de líquido, una salida (3) de líquido, una toma para un manómetro y/u otros tipos de sensores, y una válvula de purga. Cada elemento se puede ver duplicado si se considera necesario. La carcasa (1) comprende generalmente una abertura en su parte inferior para acceder al interior, como es conocido en la técnica, que toma la forma de boca de hombre (4). Igualmente comprende una tapa superior cuya retirada permite modificar, sustituir o reparar los elementos del filtro. The filter in the figure is part of an outer housing (1), made of steel or other suitable material, with preferably adjustable legs or support elements. The housing (1) has a liquid inlet (2), a liquid outlet (3), a socket for a pressure gauge and / or other types of sensors, and a purge valve. Each item can be duplicated if deemed necessary. The housing (1) generally comprises an opening in its lower part to access the interior, as is known in the art, which takes the form of a manhole (4). It also includes an upper cover whose removal allows modification, replacement or repair of the filter elements.
En la realización mostrada, la entrada (2) al filtro está situada en un lateral de la parte inferior, mientras que la salida (3) figura en la parte superior. Entre ambas se sitúa una placa (5) de candelas (6) que limita el espacio inferior (7) donde se coloca la perlita expandida. La perlita se podrá introducir a través de un conducto (10) por la boca de hombre (4) por medio de un aspirador (9) con válvulas adecuadas que permitan variar la dirección de aspiración.In the embodiment shown, the inlet (2) to the filter is located on one side of the lower part, while the outlet (3) appears on the upper part. Between them there is a plate (5) of candles (6) that limits the lower space (7) where the expanded perlite is placed. The perlite can be introduced through a conduit (10) through the manhole (4) by means of a vacuum cleaner (9) with suitable valves that allow varying the direction of aspiration.
Las candelas (6) están constituidas por un muelle, por ejemplo, de acero inoxidable, recubierto de una manga filtrante de polipropileno u otro material resistente química y físicamente. El conjunto de candelas (6) está conectado a un vibrador (12), por ejemplo, a través de la placa (5) de candelas o de la propia carcasa (1) del filtro. Este vibrador (12) puede estar accionado por un compresor (8) u otro dispositivo.The candles (6) are constituted by a spring, for example, of stainless steel, covered with a filter sleeve made of polypropylene or other chemically and physically resistant material. The set of candles (6) is connected to a vibrator (12), for example, through the candle plate (5) or the filter housing itself (1). This vibrator (12) can be driven by a compressor (8) or other device.
El filtro comprende generalmente un autómata que realiza las operaciones corrientes (filtrado, regeneración...). Puede comprender una conexión con el exterior, cableada o inalámbrica, que permita su gestión remota, por ejemplo, desde internet.The filter generally comprises an automaton that performs current operations (filtering, regeneration ...). You can understand a connection to the outside, wired or wireless, which allows remote management, for example, from the internet.
En uso, se introduce la perlita expandida en el espacio inferior (7) a través de un conducto (10) por la boca de hombre (4), y se cierra el circuito. El agua a filtrar es introducida por la entrada (2) y se dirige a las candelas (6), para llegar a la salida (3). En ese movimiento arrastra a la perlita expandida que se adhiere a las candelas (6), formando una capa o torta de varios mm de espesor. La cantidad de perlita se calculará para que se alcance un espesor conveniente, por ejemplo, de unos 3 mm. Con ello, se retienen las partículas de hasta 1 micra.In use, the expanded perlite is introduced into the lower space (7) through a conduit (10) through the manhole (4), and the circuit is closed. The water to be filtered is introduced by the inlet (2) and goes to the candles (6), to reach the outlet (3). In this movement, drag the expanded perlite that adheres to the candles (6), forming a layer or cake several mm thick. The amount of perlite will be calculated so that a suitable thickness is reached, for example, about 3 mm. With this, particles of up to 1 micron are retained.
Cada cierto tiempo, programado en el autómata o activado manualmente, se regenera el filtro deteniendo el movimiento del agua. La candela (6) recupera su forma original, y entre ese desplazamiento y la vibración aportada por un vibrador (12) la perlita cae y retorna al espacio inferior (7). Al reiniciar la circulación del fluido la perlita vuelve a formar la torta, con otra disposición de las partículas. Por lo tanto, puede retomar la captura de materia hasta la siguiente regeneración o hasta la saturación final.From time to time, programmed in the automaton or activated manually, the filter is regenerated, stopping the movement of water. The candle (6) it recovers its original form, and between that displacement and the vibration provided by a vibrator (12) the pearl falls and returns to the lower space (7). Upon restarting the circulation of the fluid, the pearlite forms the cake again, with another arrangement of the particles. Therefore, you can resume the capture of matter until the next regeneration or until the final saturation.
Se considera que existe saturación final cuando el diferencial de presión entrada la entrada y la salida sea superior a 0,6 bar o bien cada 4 semanas, lo que llegue primero. Una vez alcanzada la saturación final de la perlita, se debe proceder a su substitución, mediante una operación semiautomática en la que, se deberá vaciar el filtro mediante la válvula situada en la parte inferior del filtro (11) expulsando la perlita juntamente con el contenido de agua del filtro. Seguidamente es introducida la nueva perlita en el interior del espacio inferior (7). La operativa del cambio de perlita puede durar unos 15 minutos.Final saturation is considered to exist when the pressure differential input and output exceeds 0.6 bar or every 4 weeks, whichever comes first. Once the final saturation of the pearlite is reached, its replacement must be carried out, by means of a semi-automatic operation in which, the filter must be emptied by means of the valve located at the bottom of the filter (11), expelling the pearlite together with the contents of filter water. Then the new perlite is introduced into the interior of the lower space (7). The operation of the change of perlite can last about 15 minutes.
Descrita suficientemente la naturaleza de la presente invención, así como la manera de ponerla en práctica, no se considera necesario hacer más extensa su explicación para que cualquier experto en la materia comprenda su alcance y las ventajas que de ella se derivan. Describing sufficiently the nature of the present invention, as well as the way of putting it into practice, it is not considered necessary to extend its explanation so that any person skilled in the art understands its scope and the advantages that derive from it.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201930612A ES2726177A1 (en) | 2019-07-02 | 2019-07-02 | PERLITA FILTER (Machine-translation by Google Translate, not legally binding) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201930612A ES2726177A1 (en) | 2019-07-02 | 2019-07-02 | PERLITA FILTER (Machine-translation by Google Translate, not legally binding) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2726177A1 true ES2726177A1 (en) | 2019-10-02 |
Family
ID=68063119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES201930612A Pending ES2726177A1 (en) | 2019-07-02 | 2019-07-02 | PERLITA FILTER (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2726177A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2936229A1 (en) * | 2022-10-31 | 2023-03-15 | Hidrotuit S L U | FILTER CLEANING DEVICE FOR CANDLE LIQUIDS WITH FILTER MEDIA REGENERATION SYSTEM (Machine-translation by Google Translate, not legally binding) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3100190A (en) * | 1961-02-01 | 1963-08-06 | Per Corporation | Pressure filter and filter tube therefor |
| ES351765A1 (en) * | 1968-03-18 | 1969-06-16 | Alabart Miranda | Improvements in filters for pools. (Machine-translation by Google Translate, not legally binding) |
| GB2026885A (en) * | 1978-07-01 | 1980-02-13 | Bergwerksverband Gmbh | Candle deposition filter and a method for cleaning the filter |
| US5008009A (en) * | 1989-07-17 | 1991-04-16 | Baker Hughes Incorporated | Mechanism for filter cake removal |
| ES2036954A1 (en) * | 1991-01-17 | 1993-06-01 | Faudi Feinbau | Liq. filter for percussion discharge of solids from multiple candle - using fixed partition plate with spring-loaded candle mountings |
| US20120132581A1 (en) * | 2007-08-15 | 2012-05-31 | Monteco Ltd. | Filter for removing sediment from water |
| WO2018211161A1 (en) * | 2017-05-16 | 2018-11-22 | Gomez Vallejo Jorge | Filter for purifying large volumes of water |
-
2019
- 2019-07-02 ES ES201930612A patent/ES2726177A1/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3100190A (en) * | 1961-02-01 | 1963-08-06 | Per Corporation | Pressure filter and filter tube therefor |
| ES351765A1 (en) * | 1968-03-18 | 1969-06-16 | Alabart Miranda | Improvements in filters for pools. (Machine-translation by Google Translate, not legally binding) |
| GB2026885A (en) * | 1978-07-01 | 1980-02-13 | Bergwerksverband Gmbh | Candle deposition filter and a method for cleaning the filter |
| US5008009A (en) * | 1989-07-17 | 1991-04-16 | Baker Hughes Incorporated | Mechanism for filter cake removal |
| ES2036954A1 (en) * | 1991-01-17 | 1993-06-01 | Faudi Feinbau | Liq. filter for percussion discharge of solids from multiple candle - using fixed partition plate with spring-loaded candle mountings |
| US20120132581A1 (en) * | 2007-08-15 | 2012-05-31 | Monteco Ltd. | Filter for removing sediment from water |
| WO2018211161A1 (en) * | 2017-05-16 | 2018-11-22 | Gomez Vallejo Jorge | Filter for purifying large volumes of water |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2936229A1 (en) * | 2022-10-31 | 2023-03-15 | Hidrotuit S L U | FILTER CLEANING DEVICE FOR CANDLE LIQUIDS WITH FILTER MEDIA REGENERATION SYSTEM (Machine-translation by Google Translate, not legally binding) |
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| Date | Code | Title | Description |
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