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Hot-gas fans for ef­fi­cient kiln tech­nol­ogy

A com­mon goal: qual­ity as­sur­ance of high-qual­ity raw ma­te­ri­als

Graphite, syn­thetic car­bon and elec­trodes are es­sen­tial raw ma­te­ri­als that are used in nu­mer­ous in­dus­trial processes and prod­ucts. These ma­te­ri­als are un­ri­valled when it comes to their ver­sa­til­ity, from graphite elec­trodes for steel and alu­minium pro­duc­tion to heat con­duct­ing ma­te­ri­als, bat­ter­ies, elec­tric mo­tors, fric­tion ma­te­ri­als, such as brake lin­ings and cou­plings as well as seal­ing ma­te­ri­als.

The qual­ity of these prod­ucts re­lies on the pro­duc­tion of the raw ma­te­ri­als. Ried­ham­mer GmbH based in Nurem­berg, a renowned man­u­fac­turer of kilns for pro­cess­ing var­i­ous raw ma­te­ri­als, re­lies on the ex­per­tise of Scheuch COM­PO­NENTS for a key com­po­nent. This is be­cause our hot-gas fans en­sure that the flue gases are evenly dis­trib­uted in the kilns, which is es­sen­tial for op­ti­mis­ing the re­sults of the raw ma­te­ri­als.

Impeller hot gas centrifugal fan

Production hot gas centrifugal fan

hot gas centrifugal fan

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Per­form bet­ter

Our hot-gas fan as a key function in the kilns

Our hot-gas fans are the cen­tre­piece of Ried­ham­mer kilns, be­cause their func­tion goes far be­yond sim­ply mov­ing air. They are cru­cial for en­sur­ing even dis­tri­b­u­tion of the flue gases in the kiln, which in turn en­ables pre­cise and even tem­per­a­ture dis­tri­b­u­tion.
In a bo­gie hearth kiln, it is es­sen­tial that the prod­ucts are sur­rounded by flue gases from all sides. Our fans are de­signed to en­sure just that. The hot-gas fans are as­sem­bled gas-tight in the kiln ceil­ing and can han­dle even ex­treme con­di­tions of 900°C. In ad­di­tion, par­tic­u­lar at­ten­tion was paid to achiev­ing a long ser­vice life and min­imis­ing main­te­nance re­quire­ments dur­ing their de­vel­op­ment. This means that our part­ner can rely on the sys­tems to op­er­ate con­tin­u­ously and re­li­ably. Thanks to our hot-gas fans, each and every work­piece is processed evenly and pre­cisely, re­sult­ing in a high-qual­ity end prod­uct.

Ried­ham­mer GmbH and Scheuch COM­PO­NENTS GmbH are cur­rently work­ing on a joint re­search pro­ject to op­ti­mise bat­ter­ies for elec­tric cars in or­der to con­tin­u­ously im­prove the tech­nolo­gies and de­velop in­no­v­a­tive so­lu­tions for the chal­lenges this in­dus­try faces.

An es­sen­tial com­po­nent

The Scheuch COMPONENTS hot gas centrifugal fan

Our hot-gas fans can con­vey air at high tem­per­a­tures, mak­ing them the dri­ving force be­hind Ried­ham­mer Gmb­H’s fur­nace sys­tems. The fans move ex­tremely slowly in the kilns, which are ap­prox­i­mately 23 me­tres long. This not only en­sures ef­fi­cient and uni­form heat treat­ment, but also the out­stand­ing qual­ity of the end prod­ucts.

By us­ing spe­cial de­sign mea­sures and high-qual­ity ma­te­ri­als, the hot-gas fans from Scheuch COM­PO­NENTS con­vey me­dia up to 1,000°C. Suit­able cool­ing processes en­able safe con­tin­u­ous op­er­a­tion. Cus­tomised fans were de­vel­oped for Ried­ham­mer in close col­lab­o­ra­tion with our Sales Man­ager, Ingo Sobotta, and our tech­ni­cal ex­perts.

Per­for­mance data

Scheuch COMPONENTS hot gas centrifugal fan

Type: vml­h79 950-rb11
Flow rate: ~ 50,000 Am³/​h
Pres­sure in­crease: ~ 2,100 Pa
Mo­tor power: 47 kW
In­take tem­per­a­ture: 20 C
Max. medium tem­per­a­ture: 900 C
Drive type: Di­rect
Con­veyed medium: Air with soot and vapour

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Silencer by Scheuch COMPONENTS
Questions and answers

In­ter­view with Alexan­der Schoch

Alexander Schoch
Strategic Purchaser
Riedhammer GmbH

What role do our fans play in Riedhammer GmbH kilns?
The fans play a cru­cial role in evenly dis­trib­ut­ing the flue gases in our kilns. Their pur­pose is to en­sure that flue gases flow evenly around the prod­ucts in the bo­gie hearth kiln from all sides. This even dis­tri­b­u­tion is ex­tremely im­por­tant, as it en­sures an ex­act and con­sis­tent tem­per­a­ture dis­tri­b­u­tion through­out the kiln. The smaller the tem­per­a­ture dif­fer­ence, the bet­ter the qual­ity of the fired prod­ucts.

What positive effects can you achieve by using Scheuch COMPONENTS fans?
By us­ing them, we can achieve ex­cel­lent tem­per­a­ture dis­tri­b­u­tion in the kiln, which in turn leads to high-qual­ity and uni­form prod­ucts. Their hot-gas fans sig­nif­i­cantly con­tribute to qual­ity as­sur­ance and op­ti­mi­sa­tion of the fir­ing process.

Why did you choose Scheuch COMPONENTS?
First of all, be­cause they of­fer us out­stand­ing prod­uct qual­ity and an ex­tended ser­vice life for the fans. In ad­di­tion, we re­ally ap­pre­ci­ate the first-class col­lab­o­ra­tion with your sales and tech­ni­cal de­part­ments. The tech­ni­cal staff are al­ways ready to ef­fec­tively solve new chal­lenges and are al­ways there to sup­port us.

Are you planning any other projects involving Scheuch COMPONENTS?
We are def­i­nitely open to im­ple­ment­ing ad­di­tional pro­jects with Scheuch COM­PO­NENTS, since we have only had pos­i­tive ex­pe­ri­ences.

“I really enjoy working in partnership with Riedhammer. I would particularly like to emphasise the large number of interesting projects and the intensive exchange of experience, both in terms of products and processes. This collaboration has enabled us to generate new ideas for improvements on both sides and gain exciting insights. Together, we have managed to increase the quality level of our products. I look forward to further successful projects and an ongoing partnership.”

Ingo Sobotta
Senior Sales Manager

Our part­ner

Riedhammer GmbH

Ried­ham­mer GmbH, head­quar­tered in Nurem­berg, is one of the lead­ing man­u­fac­tur­ers of in­dus­trial kilns for the ce­ram­ics, car­bon and spe­cial ma­te­ri­als in­dus­tries. Ried­ham­mer is a fam­ily-owned com­pany spe­cial­is­ing in cus­tomised and re­li­able so­lu­tions equipped with state-of-the-art tech­nol­ogy for all fir­ing processes. The com­pany sup­plies com­plete plant so­lu­tions world­wide, in­clud­ing up­stream and down­stream processes that are linked to the kilns.

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Sabine Pupeter, contact person at Scheuch COMPONENTS

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