# US 2019/0168422 A1 · Device and method for the joint feeding of plastic particles and a liquid into a purification device

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- Number: US 2019/0168422 A1
- Document ID: US20190168422A1
- Status: Published application
- Kind: A1
- Application number: 16/082,115
- Filed: 2017-02-22
- Published: 2019-06-06
- Earliest claimed: 2016-03-03
- Assignees: CVP Clean Value Plastics GmbH
- Applicants: CVP Clean Value Plastics GmbH
- Inventors: Michael Hofmann; Dirk Schneider
- Web page: https://patentgrep.com/patent/US20190168422A1

## CPC

- B29B 17/02: Separating plastics from other materials
- B01F 23/50: Mixing liquids with solids (displacing one liquid by another in dispersions of solids in liquids B01D12/00)
- B01F 25/102: {wherein the vortex is created by two or more jets introduced tangentially in separate mixing chambers or consecutively in the same mixing chamber}
- B08B 3/00: Cleaning by methods involving the use or presence of liquid or steam (B08B9/00 takes precedence)
- B08B 3/022: {Cleaning travelling work (B08B3/042 takes precedence)}
- B08B 3/04: Cleaning involving contact with liquid
- B08B 3/10: with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B 3/102: {with means for agitating the liquid (by agitating the container B08B3/042, B08B3/044, B08B3/045, B08B3/06)}
- B29B 2017/0289: {Washing the materials in liquids}
- Y02W 30/62: Plastics recycling; Rubber recycling
- B29B: PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B01F: MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING (mixing paints B44D3/06)
- B08B: CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- Y02W: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT

## Abstract

A device for jointly delivering plastic particles and a liquid to a cleaning device to remove impurities from the plastic particles comprises a delivery funnel comprising an inlet and an outlet, wherein the inlet is configured to connect to a supply for the plastic particles, and the outlet is configured to connect to the cleaning device. At least one delivery nozzle is positioned on the delivery funnel and is configure to connect to a liquid supply. The at least one delivery nozzle is configured to discharge at least one liquid jet into the delivery funnel, wherein a position of the at least one delivery nozzle promotes mixing of the supplied plastic particles and the liquid in the delivery funnel.

## Claims

### Claim at position 1

1-23. (canceled)

### Claim 24

A device for jointly delivering plastic particles and a liquid to a cleaning device to remove impurities from the plastic particles, the device comprising:
a delivery funnel comprising an inlet and an outlet, wherein the inlet is configured to connect to a supply for the plastic particles, and the outlet is configured to connect to the cleaning device; and
at least one delivery nozzle positioned on the delivery funnel that is configured to connect to a liquid supply, the at least one delivery nozzle is configured to discharge at least one liquid jet into the delivery funnel, wherein a position of the at least one delivery nozzle promotes mixing of the supplied plastic particles and the liquid in the delivery funnel.

### Claim 25 (depends on 24)

The device according to claim 24, wherein the at least one delivery nozzle is positioned on the delivery funnel to create a swirl of liquid that mixes the plastic particles supplied to the delivery funnel, wherein the swirl of liquid is located in a region of the outlet of the delivery funnel.

### Claim 26 (depends on 24)

The device according to claim 24, wherein the at least one liquid jet is directed toward an inner wall of the delivery funnel at an angle relative to an axial direction of the delivery funnel.

### Claim 27 (depends on 24)

The device according to claim 24, wherein the at least one delivery nozzle is positioned on an edge of the inlet of the delivery funnel.

### Claim 28 (depends on 24)

The device according to claim 24, wherein the at least one delivery nozzle is configured to be adjustable to change a direction of the at least one liquid jet.

### Claim 29 (depends on 24)

The device according to claim 24, wherein the at least one liquid jet is discharged by the at least one delivery nozzle directly into the outlet of the delivery funnel.

### Claim 30 (depends on 24)

The device according to claim 24, wherein the inlet of the delivery funnel comprises an elliptical edge.

### Claim 31 (depends on 24)

The device according to claim 24, wherein the supply for the plastic particles comprises a supply reservoir connected to the inlet of the delivery funnel, and wherein rotatably driven supply brushes are positioned within the supply reservoir and are configured to push plastic particles to the inlet of the delivery funnel.

### Claim 32 (depends on 31)

The device according to claim 31, further comprising a control apparatus configured to control the supply of at least one of the plastic particles and the liquid.

### Claim 33 (depends on 32)

The device according to claim 32, further comprising at least one measuring device configured to measure and transmit data for at least one parameter of the device.

### Claim 34 (depends on 33)

The device according to claim 33, further comprising a regulating apparatus configured to receive measured data from the at least one measuring device and control the supply of at least one of the plastic particles and the liquid based on the measured data.

### Claim 35 (depends on 33)

The device according to claim 33, wherein the at least one measuring device comprises a fill level sensor configured to measure a fill level in the outlet of the delivery funnel.

### Claim 36

A cleaning device for removing impurities from plastic particles and having an inlet for jointly delivering plastic particles and a liquid, the cleaning device comprising:
a delivery funnel comprising an inlet and an outlet, wherein the inlet is configured to connect to a supply for the plastic particles, and the outlet is configured to connect to the inlet of the cleaning device; and
at least one delivery nozzle positioned on the delivery funnel that is configure to connect to a liquid supply, the at least one delivery nozzle is configured to discharge at least one liquid jet into the delivery funnel, wherein a position of the at least one delivery nozzle promotes mixing of the supplied plastic particles and the liquid in the delivery funnel

### Claim 37 (depends on 36)

The cleaning device according to claim 36, wherein the cleaning device is one of a refiner and a drum.

### Claim 38

A method for jointly delivering plastic particles and a liquid into a cleaning device for removing impurities from the plastic particles, the method comprising:
supplying plastic particles to an inlet of a delivery funnel;
supplying liquid to at least one delivery nozzle;
discharging at least one liquid jet from the at least one delivery nozzle into the delivery funnel to mix the supplied plastic particles with the liquid, wherein the mixing occurs in the delivery funnel;
discharging the mixture of the plastic particles and the liquid from an outlet of the delivery funnel and into an inlet of the cleaning device.

### Claim 39 (depends on 38)

The method according to claim 38, wherein the at least one liquid jet is discharged into the delivery funnel to create a swirl of liquid that mixes the supplied plastic particles with the liquid in a region of the outlet of the delivery funnel.

### Claim 40 (depends on 38)

The method according to claim 38, wherein the at least one liquid jet is directed toward an inner wall of the delivery funnel at an angle relative to an axial direction of the delivery funnel.

### Claim 41 (depends on 38)

The method according to claim 38, wherein the at least one liquid jet is discharged directly into the outlet of the delivery funnel.

### Claim 42 (depends on 38)

The method according to claim 38, wherein the plastic particles are supplied from a supply reservoir containing plastic particles, and wherein the supply reservoir is configured to connect to the inlet of the delivery funnel and further comprises rotatably driven supply brushes configured to guide the plastic particles into the inlet of the delivery funnel.

### Claim 43 (depends on 38)

The method according to claim 38, further comprising at least one measuring device configured to measure data pertaining to at least one parameter of the method, wherein the supply of at least one of the plastic particles and the liquid of the at least one delivery nozzle is controlled based on the measured data.

### Claim 44 (depends on 43)

The method according to claim 43, wherein the at least one measuring device is configured to measure a fill level in the outlet of the delivery funnel.

### Claim 45 (depends on 38)

A device configured to perform the method according to claim 38.