Pompa per liquami ad alta prevalenza WG

Introduzione alla pompa

SPECIFICHE:

Dimensioni: 65-300 mm
Capacità: 37-1919 m3/h
Prevalenza: 5-94 m
Consegna di solidi: 0-90 mm
Concentrazione: massimo 70%
Pressione massima: massimo 4,5 mpa
Materiali: lega ipercromata ecc.

AIER® WG High Efficiency Slurry Pump

In order to meet the requirements on the development of the electric power, metallurgy and coal industries, our company has designed and developed WG(P) Series up-to-date general slurry pump with large capacity, high head, multi-stages in series to remove ash & sludge and to deliver liquid-solids mixture, based on the experience of slurry pump design and manufacture for many years, and abstracting the research results of advanced technology from home and abroad.

Caratteristiche

Design moderno CAD, prestazioni super idrauliche, alta efficienza e tasso di abrasione inferiore;

Passaggio ampio, non intasabile e buon rendimento dell'NPSH;

La guarnizione dell'espulsore combinata con la guarnizione dell'imballaggio e la guarnizione meccanica sono state adottate per garantire le perdite dei liquami;

La progettazione dell'affidabilità garantisce un MTBF lungo (tempo medio tra gli eventi);

Il cuscinetto metrico con lubrificazione ad olio, ragionevoli sistemi di lubrificazione e raffreddamento garantiscono il funzionamento del cuscinetto a basse temperature;

I materiali delle parti bagnate hanno buone prestazioni antiusura e anticorrosione;

La pompa può essere utilizzata per la rimozione delle ceneri dell'acqua di mare per prevenirne la corrosione dell'acqua di mare, del sale e della nebbia e la corrosione elettrochimica;

La pompa può essere utilizzata in serie con multistadio entro la pressione consentita.

La pompa presenta i vantaggi di una costruzione ragionevole, di un'elevata efficienza, di un funzionamento affidabile e di una facile manutenzione. Può essere ampiamente utilizzato per la movimentazione della miscela contenuta di solidi abrasivi e corrosivi nei reparti di energia elettrica, metallurgia, miniera, carbone, materiali da costruzione e industria chimica, in particolare per la rimozione di ceneri e fanghi nelle centrali elettriche.

Notazione della pompa

100 WG(P):

100: Diametro uscita (mm)

WG: Pompa per liquami ad alta prevalenza

P: Pompe multistadio (1-2 stadi senza contrassegno)

La pompa per liquami WG è una pompa per liquami centrifuga, orizzontale, monostadio, ad aspirazione singola, a sbalzo, a doppia cassa. La pompa ruota in senso orario vista dal lato conduttore.

Le parti umide delle pompe WG e WGP con lo stesso diametro di uscita possono essere intercambiabili. Anche le dimensioni di installazione del contorno sono le stesse. Per la parte di azionamento della pompa per liquami WG(P), è stato adottato il telaio diviso orizzontale con lubrificazione ad olio e due set di sistemi di raffreddamento ad acqua all'interno e all'esterno. Se necessario può essere fornita acqua di raffreddamento. Il giunto preparato per l'acqua di raffreddamento e la pressione dell'acqua di raffreddamento sono riportati nella tabella 1.

Two kinds of shaft seal – expeller seal combined with packing and mechanical seal.

La tenuta meccanica fornita con acqua di tenuta ad alta pressione è consigliata quando la pompa viene utilizzata in serie, mentre la tenuta dell'espulsore combinata con la baderna viene utilizzata nella pompa monostadio.

La pressione dell'acqua e la quantità di tutti i tipi di tenuta meccanica sono le seguenti:

1) Sigillatura della pressione dell'acqua

Per la pompa monostadio con tenuta dell'espulsore combinata con baderna, la pressione dell'acqua della tenuta meccanica è 0,2-0,3 Mpa.

Per il funzionamento in serie multistadio con la tenuta dell'espulsore combinata con la baderna, la pressione dell'acqua di tenuta deve essere: La pressione dell'acqua di tenuta più bassa di n stadio = Hi + 0.7Hn Where: n ≥2.

Per la tenuta meccanica, la pressione dell'acqua di tenuta di ogni stadio della pompa è superiore di 0,1 MPa rispetto alla pressione all'uscita della pompa

2) Pressione dell'acqua di tenuta (vedi tabella 1)

Tabella 1: parametri dell'acqua di tenuta

Progettazione edile

Materiale della parte della pompa

Curva di prestazione

Dimensioni di installazione

The Role of High Head Slurry Pumps in Long-Distance Slurry Transport Systems 

A high head slurry pump plays a pivotal role in transporting abrasive and dense slurries over long distances and significant vertical heights. Unlike standard industrial slurry pumps, high head pumps are specifically engineered to provide the increased pressure necessary for long pipeline systems, ensuring the efficient and consistent movement of solids-laden fluids.

In industries such as mining, mineral processing, coal preparation, and dredging, materials often need to be transported through extended pipelines, sometimes spanning hundreds of meters. The combination of high solids content, abrasive particles, and long transport distances makes conventional pumps unsuitable, as they may fail under high head conditions or suffer from excessive wear. A high head slurry pump addresses these challenges by delivering reliable performance while maintaining operational efficiency.

The design of a high head slurry pump emphasizes durability and resistance to wear. Casings and impellers are often made of high-chrome alloys or wear-resistant metals, allowing the pump to handle abrasive slurries with minimal erosion. Many slurry pump manufacturers also offer customizable options, such as modular impellers and liners, enabling easy maintenance and replacement, thereby reducing downtime and maintenance costs.

Additionally, high head slurry pumps are engineered for optimal hydraulic performance. Their impeller and volute designs minimize energy loss, allowing slurries to be transported at higher pressures without overloading the motor or increasing operational costs. This energy-efficient design is particularly important in industrial settings, where large volumes of slurry must be moved continuously over extended distances.

Applications of high head slurry pumps include tailings disposal, long-distance slurry transport from mines to processing plants, and chemical slurry movement in metallurgical operations. Their ability to sustain high pressures and manage abrasive fluids reliably makes them a critical component in industrial processes.

In conclusion, a high head slurry pump is essential for long-distance slurry transport systems, offering high pressure, durability, and efficiency. Selecting a reliable slurry pump manufacturer ensures that your plant receives a customized, high-performance solution tailored to demanding industrial applications.

How High Head Slurry Pumps Improve Efficiency in Mining and Processing Plants 

Mining and mineral processing plants require robust equipment capable of handling abrasive slurries with high solids content. A high head slurry pump is integral in these facilities, enhancing efficiency, reducing energy consumption, and minimizing maintenance needs. By delivering high pressure and flow over long distances, these pumps streamline material handling and improve overall plant productivity.

In mining operations, tailings and ore slurries often need to be transported from extraction sites to processing plants or storage areas. A high head slurry pump is specifically designed to handle this workload, maintaining consistent flow rates even with challenging slurry compositions. This ensures that production lines run smoothly without bottlenecks or downtime caused by pump failure.

The efficiency of a high head slurry pump also translates to energy savings. Advanced impeller designs and optimized hydraulic profiles reduce friction losses and pump energy requirements. Many industrial slurry pumps from reputable slurry pump manufacturers are designed with high efficiency in mind, allowing plants to lower operational costs while maintaining the required throughput.

Maintenance is another area where high head slurry pumps provide advantages. These pumps are constructed with wear-resistant materials such as high-chrome alloys or alloy steels, minimizing erosion from abrasive particles. Replaceable liners and impellers allow maintenance teams to perform targeted repairs without dismantling the entire pump system, reducing downtime and labor costs.
Furthermore, these pumps are available in various configurations, including horizontal and vertical designs, enabling flexible installation in confined or challenging spaces. The modular construction also supports scalability, allowing mining and processing plants to adjust pump capacity as operational needs evolve.

In summary, using a high head slurry pump in mining and processing plants improves slurry transport efficiency, reduces energy consumption, and minimizes maintenance costs. Partnering with a reliable slurry pump manufacturer ensures access to high-quality, durable pumps capable of withstanding abrasive industrial conditions while delivering long-term performance.

Material Selection for High Head Slurry Pumps: Metal vs Alloy 

Selecting the appropriate material for a high head slurry pump is crucial to maximize performance, wear resistance, and operational lifespan. Industrial applications often involve abrasive and corrosive slurries, which can quickly erode or damage pumps made from unsuitable materials. Choosing between metal and alloy construction depends on the specific process requirements and the slurry’s characteristics.

Traditional metal slurry pumps are typically made of ductile iron or stainless steel, offering robust structural strength and corrosion resistance. These materials are suitable for moderate abrasiveness and provide reliable long-term service. However, in highly abrasive conditions, such as those found in mining or mineral processing, standard metals may wear quickly, leading to reduced efficiency and increased maintenance costs.

Alloy construction, especially high-chrome or nickel-chrome alloys, offers superior wear resistance and hardness, making them ideal for heavy-duty industrial slurry transport. A high head slurry pump made from these materials can handle slurries with high solids concentrations and large particle sizes without rapid erosion. The enhanced durability ensures continuous operation with minimal downtime, which is essential for high-capacity industrial processes.

Many slurry pump manufacturers offer modular designs that allow clients to choose between metal or alloy liners and impellers based on operational needs. This flexibility enables plants to optimize pump longevity and reduce maintenance frequency. Additionally, alloy materials can improve hydraulic performance by maintaining smooth surfaces within the pump, reducing energy losses and improving overall efficiency.

The selection of materials also impacts cost-effectiveness. While alloy pumps may have higher initial investment costs compared to standard metals, their extended service life and reduced maintenance requirements often result in lower total operational costs over time. Industrial facilities that prioritize reliability and efficiency benefit significantly from investing in high-quality alloy high head slurry pumps.

In conclusion, material selection for a high head slurry pump plays a decisive role in durability, efficiency, and cost-effectiveness. Whether using metal or alloy construction, choosing a reliable slurry pump manufacturer ensures that the pump is tailored to handle demanding industrial slurries while providing long-term operational performance.