# US 2006/0124054 A1 · Fluidized bed reactor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2006/0124054 A1 - Document ID: US20060124054A1 - Status: Published application - Kind: A1 - Application number: 11/282,118 - Filed: 2005-11-16 - Published: 2006-06-15 - Earliest claimed: 2003-05-16 - Assignees: Glatt Process Technology GmbH - Inventors: Manfred Struschka; Winfried Thomann; Jochen Dressler - Web page: https://patentgrep.com/patent/US20060124054A1 ## CPC - B01J 2/16: by suspending the powder material in a gas, e.g. in fluidised beds or as a falling curtain - B01J 8/006: {by filtration} - B01J 8/1827: {the fluidising gas being a reactant} - B01J 8/40: with fluidised bed subjected to vibrations or pulsations - B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS ## Abstract A fluidized bed reactor for granulating and coating particles in very small amounts having an essentially conical product container, a filter housing with filters inserted above the product container, and a lower housing below the conical product container having a process air supply. The product container has a sieve bottom in the center of which is a height-adjustable two-component nozzle. At least one guide element associated with the sieve bottom directs at least part of the process air to the two-component nozzle in a radial manner. ## Claims ### Claim 1 A fluidized bed device for granulating and coating particles in very small quantities, comprising at least one generally cone-shaped product container, a filter housing arranged above the product container, having inserted filters, and a housing lower part arranged below the product container and which has a process air supply, wherein the product container comprises a sieve bottom in which a two-component nozzle is generally centrally inserted, said two-component nozzle being adjustable in its height with respect to the sieve bottom, and at least one guide element allocated to the sieve bottom, said guide element providing the process air with a radial component at least partly in the direction of the two-component nozzle. ### Claim 2 (depends on 1) A fluidized bed device according to claim 1, wherein the two-component nozzle is inserted in a nozzle holder, which comprises at least one air guide channel fed with process air with selectable discharge opening dimensions. ### Claim 3 (depends on 2) A fluidized bed device according to claim 2, wherein the nozzle holder is provided with an exchangeable annular cap. ### Claim 4 (depends on 1) A fluidized bed device according to claim 1, wherein the guide element has an annular projection directed radially inwardly in a lower part of the product container and forms a gap with the sieve bottom that is open towards the middle. ### Claim 5 (depends on 1) A fluidized bed device according to claim 1, wherein the height of the two-component nozzle and/or the discharge opening of the air guide channel in the nozzle holder is set depending on at least one of the quantity, density and shape of the particles. ### Claim 6 (depends on 2) A fluidized bed device according to claim 2, wherein the nozzle holder projects above the sieve bottom into the product container, and the projecting portion thereof is one of generally cone-shaped, concave and convex. ### Claim 7 (depends on 2) A fluidized bed device according to claim 2, wherein the at least one air guide channel is an annular gap bordering the two-component nozzle. ### Claim 8 (depends on 1) A fluidized bed device according to claim 1, wherein the product container has a transition region at the bottom thereof formed for directing a return flow of particles in the direction of the two-component nozzle. ### Claim 9 (depends on 8) A fluidized bed device according to claim 8, wherein the transition region is rounded. ### Claim 10 (depends on 1) A fluidized bed device according to claim 1, sized for a product quantity of about 2 to 100 grams. ### Claim 11 (depends on 10) A fluidized bed device according to claim 10, sized for a product quantity of less than about 50 grams. ### Claim 12 (depends on 1) A fluidized bed device according to claim 1, further comprising a transition housing disposed between the product container and the filter housing. ### Claim 13 (depends on 1) A fluidized bed device according to one of the claim 1, further comprising a charging device having at least one receiver for a supply container containing particles. ### Claim 14 (depends on 13) A fluidized bed device according to claim 13, wherein the at least one receiver is arranged on a sleeve rotatable about a connecting piece, wherein the sleeve is rotatable between a first position in which the supply container is closed off from the fluidized bed device and a second position in which the supply container is in connection with the fluidized bed device. ### Claim 15 (depends on 13) A fluidized bed device according to claim 13, wherein the charging device has a plurality of receivers. ### Claim 16 (depends on 1) A fluidized bed device according to claim 1, further comprising a device for detaching particles that stick to the filter housing walls. ### Claim 17 (depends on 1) A fluidized bed device according to claim 1, wherein components thereof are sealingly connected to each other by way of releasable connections.