Government Contract | Texas
Industrial Grinder-Rock Tramp Trap

Bid Information

Bid Alert No: 00000467527

Bid Title: Industrial Grinder-Rock Tramp Trap

Agency Bid No. Title: 2016-003

Received Date: 01/25/2016

Close Date: 02/16/2016

Purchase Type: Term:

Delivery Point: Waco, Texas

Delivery Date: Not Stated

Special Notices: Pre-Bid Conference 02/03/2016 09:00 AM


Specifications include, but are not limited to: Background1.The purpose of a grinder-rock tramp trap is to pre-treat high strength liquid waste by removing rocks and dense debris and by grinding other solids (including rags and plastic material) prior to the liquid wastes introduction to the treatment plant processes. The removal of this debris reduces damage to pumps and other downstream equipment, and fouling of the digester process.2.Haulers connect to the grinder-rock tramp trap to unload their high strength liquid waste and then depart from the treatment plant in a very short time. Flow enters the rock tramp trap tank near the top, radially directing the flow to cause a helical effect within the tank, thereby reducing the energy of the flow and allowing larger objects to collect at the bottom of the tank. The outlet piping entry point of the tank is from the center lower portion, approximately of the tank height from the bottom of the tank. The outlet of the rock tramp trap is fluidly connected to the twin shaft inline grinder and discharges into the 40,000 gallon industrial receiving tank. b. Inline Grinder 1. The twin shaft grinder shall be designed to reduce solids normally found in a sewage system such as rocks, dense debris, rags, plastic and wood material. 2. The grinder shall be capable of handling the specified flow rate without the use of moving diverter screen(s). 3. Grinder housing assembly i 6-inch Inlet and 6-inch Discharge Flanges 4. Two-shaft design shall consist of two parallel shafts stacked with intermeshing cutters. The shafts shall counter-rotate with the driven cutter peripheral linear speed operating at approximately two-thirds (2/3) that of the drive cutter peripheral linear speed. 5. The main housing components shall be a cast structure made of ASTM A536-84 ductile iron.

Bid Related Documents

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Product Code: 89019

Agency Information

Issuing Agency: City of Waco

State: Texas

Agency Type: State and Local

Contact: Mike Jupe, Utilities Services Operations Center, 1415 N. 4th Street, Waco, Texas, 76707

Phone: 254-662-1501




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