查尔斯顿咖啡

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BY Edmund Sinnott | 2022年9月19日 | 咖啡 链式 工艺系统
 

Charleston Coffee Roasters, located in North Charleston, South Carolina is a fast growing specialty roaster proudly offering batches made to order.

他们希望在不影响质量和新鲜度的情况下扩展运营。为此，他们在批处理方面需要很大的灵活性。此外，对于全豆订单，他们希望零破损和最大的新鲜度;对于研磨咖啡订单，他们希望尽可能精确地研磨，而不会分批分离。他们依靠 MPE 帮助他们交付一系列手提袋、 管状拖拽输送机和 大容量研磨机 ，以帮助实现这些目标。

Green Coffee Handling

Charleston uses green bins for green coffee storage. They fill totes to transport the green coffee to one of three roasting stations.

Grinding

Charleston has two MPE 700 FX roller mills for grinding up to 2,000 lb/hr (900 kg/hr) of precision ground, perfectly densified coffee. Two 3″ (76mm) diameter Chain-Veys located on either side transport whole bean coffee to surge hoppers above the grinders. The surge hoppers’ purpose are to rapidly intake the coffee from the inlet (floor level) to the discharge, where they are fed. This allows emptying the totes quickly, and then frees up operators for other tasks. The surge hoppers feed the coffee into the grinder at their ideal infeed rates. Coffee then discharges into empty totes positioned directly under the mezzanine. The grinding operation requires minimal monitoring and is mostly automated as desired by the customer.

Blending

A Munson Blender is fed by a 3″ (76mm) diameter Chain-Vey. The blending is done post-roast, allowing coffees roasted with distinct roast profiles—each to bring out the coffees’ best qualities.

Roasting

An array of three roasters (left to right): A 90 Kg capacity roaster in the foreground, and two 120 Kg capacity roasters in the background; each fed by 3″ diameter Chain-Vey tubular drag conveyors.
The Chain-Vey’s inlet sits low to the floor, allowing totes to be wheeled directly over them. Green coffee is conveyed in a 3″ diameter Chain-Vey to the roaster hopper. After being roasted and cooled down on the circular cooling tray, the coffee is transported using a destoning vacuum lift. The coffee rises up to a destoner hopper which sits on load cells. The coffee’s weight can be accurately measured and then dropped into the mobile totes for transport to blending, grinding, or packaging stations.

Packaging

Roasted whole bean or ground coffee is delivered to this bag filling station using totes. Totes empty into a Chain-Vey inlet on floor-level. Coffee is carried upward and discharged into one of two surge hoppers. One is for ground coffee, and the other for whole bean exclusively. The bag filling machine is configured for 12 oz bags.

Results

查尔斯顿目前的系统包括 9 台 Chain-Veys、2 台 MPE 辊磨机、1 台 GPX 盘式磨床、3 台 MPE 设计的双料斗系统以及一系列周转箱，共同实现其所有 工艺系统 目标。

“我们对我们的 MPE 造粒机、Chain-Veys 和定制输送组件非常满意，” Charleston Coffee Roasters 的 Gary Hull 补充道。

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