Created on 07.10

M、AH、HH Slurry pump - Made in China

M, AH, HH Type Cantilever Horizontal Centrifugal Slurry Pumps: 

A Powerful Solution for Transporting Highly Abrasive and Concentrated Slurries in Industrial Fields

In industrial fields such as metallurgy, mining, coal, electric power, and building materials, transporting highly abrasive and concentrated slurries is an extremely challenging task. The emergence of M, AH, and HH type cantilever horizontal centrifugal slurry pumps has provided an efficient and reliable solution to these problems. With their unique structural design, diverse shaft seal forms, wide range of application scenarios, and flexible usage methods, they have become indispensable key equipment in industrial production.

Structural Features: Sturdy, Durable, and Convenient for Maintenance

The M, AH, and HH type pumps have fully considered the harsh requirements of industrial production in their structural design, exhibiting many significant characteristics.

The double pump casing structure is a major highlight of these three types of pumps. The M and AH type pumps adopt a double pump casing structure, with the pump body and pump cover equipped with replaceable wear-resistant metal liners or rubber liners, and the impellers made of wear-resistant metal or rubber materials. This design enables them to have stronger adaptability when dealing with slurries of different wear degrees and properties. For example, when transporting slurries containing finer particles with relatively weak abrasiveness, rubber liners and rubber impellers can exert better shock absorption and wear resistance effects; while for highly abrasive slurries containing coarse particles and high hardness, wear-resistant metal liners and metal impellers can demonstrate more excellent anti-wear performance.

The pump casing liners and impellers of the HH type pump only use wear-resistant metals. This design makes it perform particularly well under high-wear working conditions. In scenarios where the solid particles in the slurry have extremely high hardness and high concentration, such as in the crushing and grinding links of mines, the wear-resistant metal components of the HH type pump can withstand continuous strong wear, greatly extending the service life of the equipment. Moreover, this design allows for the replacement of only the liner components instead of the entire pump body when the pump is subjected to high-wear conditions, which not only significantly reduces maintenance costs but also shortens downtime, ensuring the continuity of industrial production.

The vertical split design is also an important structural feature of these three types of pumps. The pump body and pump cover are made of gray cast iron or ductile iron according to the working pressure, vertically split, and connected with bolts. This design provides great convenience for maintenance and replacement of parts. When the pump breaks down and requires inspection or replacement of parts, workers can easily open the pump body and pump cover to inspect and replace internal components such as impellers and bearings without complex disassembly work, improving maintenance efficiency.

In terms of impeller design, the front and rear covers of the impeller are equipped with back blades, and this detailed design is of great significance. The back blades can effectively reduce leakage and improve the volumetric efficiency of the pump. At the same time, they can balance part of the axial force, reduce the load on the bearings, thereby increasing the service life of the pump. When transporting high-concentration slurries, reducing leakage can avoid additional wear of the slurry on other parts of the pump body, ensuring the efficient operation of the pump.

The flexible discharge port is an important guarantee for these three types of pumps to adapt to different installation environments. The discharge port of the pump can be installed by rotating at eight angles, adapting to different installation environments and pipeline layout requirements. In industrial plants, pipeline layout is often restricted by various factors such as space and equipment layout. The flexible rotation and installation of the pump discharge port allow workers to adjust the direction of pipeline connection according to actual conditions, greatly reducing installation difficulty and improving the flexibility of equipment installation.

Shaft Seal Forms: Diverse Choices for Adapting to Different Working Conditions

The shaft seal is an important part of the pump, and its performance directly affects the operating efficiency and reliability of the pump. The M, AH, and HH type pumps provide a variety of shaft seal forms to meet the needs of different working conditions.

Packing seal is a kind of shaft seal form with simple structure and convenient maintenance, suitable for various working conditions. It can be matched with special materials such as polytetrafluoroethylene packing and graphite packing. Polytetrafluoroethylene packing has excellent corrosion resistance and high-temperature resistance, suitable for transporting slurries containing corrosive media; graphite packing has good lubricity and wear resistance, performing well under some normal temperature and medium wear working conditions. The installation and replacement of packing seals are relatively simple. When the sealing performance decreases, workers can quickly replace the packing to ensure the normal operation of the pump. This type of shaft seal has a relatively low cost and is an economical and practical choice for working conditions that do not have particularly high requirements for sealing, such as coal slurry transportation in the coal industry.

Centrifugal seals (or mechanical seals) have the characteristics of good sealing effect, but their cost is relatively high, and shaft seal water must be added as required. Centrifugal seal uses the action of centrifugal force to throw the medium in the seal cavity back into the pump to achieve sealing. Mechanical seal forms a seal through two sealing end faces perpendicular to the shaft, which are tightly fitted under the action of elastic elements and slide relatively. Their sealing performance is far better than that of packing seals, which can effectively prevent slurry leakage, and are suitable for working conditions with high sealing requirements, such as sewage treatment and sludge transportation in the environmental protection industry, avoiding environmental pollution caused by slurry leakage. However, during use, it is necessary to add shaft seal water as required to ensure the lubrication and cooling of the sealing surface; otherwise, the sealing surface may be damaged due to overheating, affecting the sealing effect and equipment life.

Application Fields: Wide Coverage to Assist the Development of Multiple Industries

With their excellent performance, M, AH, and HH type cantilever horizontal centrifugal slurry pumps have been widely used in multiple industrial fields, providing strong support for the production and operation of various industries.

In the metallurgical industry, they are used for slurry transportation in various metal smelting processes, such as lead-zinc smelting and copper smelting. During metal smelting, a large amount of slurries containing metal oxides and other impurities are generated, which have strong corrosiveness and abrasiveness. M, AH, and HH type pumps can efficiently and stably transport these slurries to designated locations for treatment or reuse, ensuring the smooth progress of the smelting process.

The mining field is an important application market for these three types of pumps. In mineral processing plants, they are used in tailings transportation systems, ore slurry transportation, sand-stone separation, tailings management, mine drainage systems, crushing, and grinding links. The tailings in mines contain a large number of solid particles with high concentration and strong abrasiveness. The wear-resistant design of M, AH, and HH type pumps can easily cope with this working condition, transporting tailings to tailings ponds safely and efficiently. During ore slurry transportation, the stable operation of the pump ensures the continuity of the mineral processing process and improves mineral processing efficiency.

In the coal industry, M, AH, and HH type pumps are mainly used for coal slurry transportation, coal slurry and heavy medium transportation in coal washing plants, etc. The coal slurry generated during coal washing contains a large amount of coal powder and impurities, which need to be transported and processed by pumps. These pumps can adapt to the characteristics of coal slurry, ensuring the smooth flow of coal slurry in the pipeline and providing reliable equipment support for coal washing and processing.

In thermal power plants in the electric power industry, these three types of pumps are also indispensable in the ash treatment link and desulfurization system. Thermal power generation will produce a large amount of ash, which needs to be transported out in time for treatment to avoid environmental pollution. In the desulfurization system, pumps are used to transport desulfurization slurry, which usually has certain corrosiveness. The corrosion resistance of M, AH, and HH type pumps can meet this demand, ensuring the stable operation of the desulfurization system.

In the cement production line of the building materials industry, slurry transportation is a key link, and M, AH, and HH type pumps play an important role here. The slurry in the cement production process contains a large number of cement clinker particles with strong abrasiveness. These pumps can efficiently transport the slurry to various production links, ensuring the smooth progress of cement production.

In the environmental protection industry, they are applied in fields such as sewage treatment and sludge transportation. The sludge generated during sewage treatment has high concentration, complex composition, and certain corrosiveness and viscosity. M, AH, and HH type pumps can effectively transport the sludge to treatment equipment, providing strong guarantee for the development of sewage treatment work.

Multi-stage Series Use: Flexible Adjustment to Meet Different Head Requirements

In industrial production, different technological processes have different requirements for the head of the pump. Within the maximum allowable working pressure range, M, AH, and HH type pumps can be used in multi-stage series to meet different head requirements.

Multi-stage series use refers to connecting multiple pumps in sequence, with the outlet of the previous pump connected to the inlet of the next pump. In this way, the head can be superimposed. For example, in some scenarios where slurries are transported over long distances, the head of a single pump cannot meet the demand. At this time, multiple M, AH, or HH type pumps can be connected in series to obtain sufficient head, ensuring that the slurry can be transported to the destination smoothly.

This flexible usage method greatly improves the applicability of the pump, enabling them to cope with various complex industrial transportation conditions. Whether it is deep well drainage in mines or long-distance slurry pipeline transportation, multi-stage series use can provide appropriate head, ensuring the smooth progress of production. At the same time, during multi-stage series use, each pump can operate and be maintained independently. When one of the pumps fails, only it needs to be repaired or replaced without affecting the normal operation of other pumps, further improving the reliability of the entire transportation system.

To sum up, M, AH, and HH type cantilever horizontal centrifugal slurry pumps, with their unique structural features, diverse shaft seal forms, wide range of application fields, and flexible multi-stage series usage methods, have become ideal choices for transporting highly abrasive and concentrated slurries in industrial fields. They play an important role in improving production efficiency, reducing maintenance costs, and ensuring production continuity, providing solid equipment support for the development of industries such as metallurgy, mining, coal, electric power, building materials, and environmental protection.

AH Slurry Pump Performance Parameter:

Model	Max. Power	Material		Clear water performance					Impeller Vane No.
Model	Max. Power	Liner	Impeller	Capacity Q (m³/h)	Head H (m)	Speed n (rpm)	Eff.η (%)	NPSH (m)	Impeller Vane No.
1.5/1B-AH	15	M	M	12.6⁓28.8	6⁓68	1200⁓3800	40	2⁓4	5
1.5/1B-AH	15	RU	RU	10.8⁓25.2	7⁓52	1400⁓3400	35	2⁓4	3
1.5/1B-HH	30	M	M	16.2⁓34.2	25~92	1400⁓2200	20	1⁓5.5	5
2/1.5B-AH	15	M	M	32.4⁓72	6⁓58	1200⁓3200	45	3.5⁓8	5
2/1.5B-AH	15	RU	RU	25.2 ⁓54	5.5⁓41	1000⁓2600	50	2.5⁓5	5
3/2C-AH	30	M	M	39.6⁓86.4	12⁓64	1300⁓2700	55	4⁓6	5
3/2C-AH	30	RU	RU	36⁓75.6	13⁓39	1300⁓2100	55	2⁓4	5
4/3C-AH	30	M	M	86.4⁓198	9⁓52	1000⁓2200	71	4⁓6	5
4/3D-AH	60	M	M	86.4⁓198	9⁓52	1000⁓2200	71	4⁓6	5
4/3C-AH	30	RU	RU	79.2⁓180	5⁓34.5	800⁓1800	59	3⁓5	5
4/3D-AH	60	RU	RU	79.2⁓180	5⁓34.5	800⁓1800	59	3⁓5	5
4/3E-HH	120	M	M	126⁓252	12⁓97	600⁓1400	50	2⁓5	5
6/4D-AH	60	M	M	162⁓360	12⁓56	800⁓1550	65	5⁓8	5
6/4E-AH	120	M	M	162⁓360	12⁓56	800⁓1550	65	5⁓8	5
6/4D-AH	60	RU	RU	144⁓324	12⁓45	800⁓1350	65	3⁓5	5
6/4E-AH	120	RU	RU	144⁓324	12⁓45	800⁓1350	65	3⁓5	5
6/4F-HH	260	M	M	100⁓414	34⁓98	600⁓1000	64	2⁓8	5
8/6E-AH	120	M	M	360⁓828	10⁓61	500⁓1140	72	2⁓9	5
8/6E-TH	120	RU	RU	324⁓720	7⁓49	400⁓1000	65	5⁓10	5
10/8ST-AH	560	M	M	612⁓1368	11⁓61	400⁓850	71	4⁓10	5
10/8ST-AH	560	RU	RU	540⁓1188	12⁓50	400⁓750	75	4⁓12	5
10/8E-M	120	M	M	666⁓1440	14⁓60	600⁓1100	73	4⁓10	5
10/8E-M	120	RU	RU	540~1188	10~42	500~900	79	5~9	5
12/10ST-AH	560	M	M	936⁓1980	7⁓68	300⁓800	82	6	5
12/10ST-AH	560	M	M	720⁓1620	7⁓45	300⁓650	80	2.5⁓7.5	5
14/12ST-AH	560	M	M	1260⁓2772	13⁓63	300⁓600	77	3⁓10	5
14/12ST-AH	560	RU	RU	1152⁓2520	13⁓44	300⁓500	79	3⁓8
16/14ST-AH	560	M	M	1368⁓3060	11⁓63	250⁓550	79	4⁓10	5
16/14TU-AH	1200	M	M	1368⁓3060	11⁓63	250⁓550	79	4⁓10	5
18/16ST-AH	560	M	M	2160⁓5040	8⁓66	200⁓500	80	4.5⁓9	5
18/16TU-AH	1200	M	M	2160⁓5040	8⁓66	200⁓500	80	4.5⁓9	5
20/18TU-AH	1200	M	M	2520⁓5400	13⁓57	200⁓400	85	5⁓10	5

E-mail: info@topslurrypumps.com

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Tel.: +0086-14730674938

WeChat：+8613831153172

Add.: No.150 Donggang Road, Yuhua Destrict, Shijiazhuang, China

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