FY24 Poultry Feed Mixer Containment Unit for TMRU 08012024.docx

UNITED STATES DEPARTMENT OF AGRICULTURE

AGRICULTURAL RESEARCH SERVICE

USNPRC

SPECIFICATIONS

Poultry Feed Mixer Containment Device

1. Introduction: Scientists at the US National Poultry Research Center conduct food and feed safety experiments involving the mixing of feed with fungal metabolites (mycotoxins) to assess the effects of the compounds on poultry species. A feed mixer for this process has been procured and a soft-walled, HEPA-filtered containment device over the feed mixer is needed.

2. Scope: The Contractor shall provide a soft-walled, HEPA-filtered containment device able to offer containment over poultry feed mixer to prevent dust from leaving the vessel while mixing. The containment unit must fit over a Ross Mixer 42N-10 model and allow for access to mixer controls, knife gate discharge valve mechanism, hinged doors on top of unit and access to and from feed discharge area while maintaining containment (negative pressure).

3. Technical Requirements: Poultry feed mixer containment unit for Ross Mixer 42N-10 model. Specifications: Containment unit must encompass a Ross Mixer 42N-10 model while allowing contained access to top, sides and front of feed mixer. Containment unit must be negative pressure as it relates to surrounding outside environment to contain dust created within the feed mixing process. Containment unit must be a 100’’x 48’’x 96’’ soft-walled containment unit with 20 ml clear urethane film, 1 ½’’ anodized aluminum frame, supply and exhaust HEPA filtered air with blower motors. HEPA filters/HEPA filter housings must allow for the HEPA filters to be certified. If containment unit has supply and exhaust motors for HEPA filters, an interlock is needed so that unit is not positively pressurized if exhaust motor fails. Containment unit must have soft-walled ceiling, walls and floor and have a magnehelic gauge that displays differential pressure (negative)/directional airflow. HEPA filter blower motor must run on 120V power. Containment unit must have four gas-tight zipper doors at sides (2), top (1) and front (1). Containment unit must come with control panel, attachment for power cord and installation included and also include containment port for mixer power cord. Containment unit must have 54’’x 33’’zipper door opening on front with gas-tight zipper to accommodate entry and exit of feed bin when mixed feed is discharged from mixer unit. Feed bin will be on wheels and there must not be a conflict with the 54’’x 33’’ opening on front with frame that would prevent feed bin from being pushed in and pulled out from under mixer gate valve where mixed feed will be disbursed. This front 54’’x 33’’ door must have hinges on one side and a latch on the other to allow the frame to open outward by unsnapping snap loops or similar and then allow access to unzip the front zipper door to push/pull the feed bin in and out without conflict. Containment unit must have 46’’ x 46’’ openings on both sides of containment unit with gas-tight zippers to access controls and motor on poultry feed mixer. Containment unit must have 54’’ x 33’’ opening on top of containment unit for accessing hinged doors on poultry feed mixer that does not create a conflict with auger that will be used to load feed. HEPA filter and blower motor must not be on top/roof of containment unit, as that will create conflict with top of mixer doors and feed auger. Containment unit must also have integrated glove port with gloves or similar design to operate knife gate discharge valve handle without having to open containment unit or gas tight zipper.

5. Period of Performance: 120 days from contract award

6. Government Furnished:

2) Location for delivery.

7. Performance Requirement Measures:

Poultry Feed mixer containment unit in the specifications required within the listed period of performance.