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Coal Powder Pneumatic Conveying Silo Pump With Conveying Capacity 12-50 t/h
Description
The working principle of a positive pressure dense phase pneumatic
conveying system:
Dense coherent ash conveying is based on the pneumatic conveying
principle of solid-gas two-phase flow, utilizing the static and
dynamic pressure of compressed air to transport materials with high
concentration and efficiency. Fly ash must be fully fluidized in
the bin pump and transported while fluidized. The entire system
consists of five parts: gas source, conveying, pipeline, ash
storage, and control. The conveying part is composed of conveyors
(bin pumps) of corresponding specifications according to the
requirements of ash conveying capacity. Each conveyor is an
independent unit that can operate either as a single machine or as
a system composed of multiple units.
Bin pump
It is the core part of the system, through which dry ash and
compressed air are fully mixed and fluidized, enabling smooth
operation in the system. It is a closed steel tank, equipped with
supporting equipment such as inlet and outlet valves, fluidization
plates, level gauges, safety valves, etc.
Working principle of bin pump:
The bin pump is a pressure vessel with an air nozzle, which has the
characteristics of long ash conveying distance, reliable operation,
high degree of automation, and requires compressed air with
relatively high pressure as the conveying medium. It should be
equipped with a set of air compressors. Its working process is to
first open the exhaust valve and feed valve for loading, then close
the feed valve and exhaust valve when the material is full, open
the cylinder pressurization valve, and compress the air to take
away the dust inside the cylinder. In such a cyclic manner, dust
can be transported out.
1. Feeding stage: The feeding valve is in an open state, and the primary inlet and
outlet valves are closed. The upper part of the bin pump is
connected to the ash hopper. The fly ash collected by the dust
collector freely falls into the bin pump by gravity or through the
discharge machine. When the ash level is high enough to send a full
signal from the material level gauge, or according to the system
feeding setting time, the feeding valve is closed, the exhaust
valve is closed, and the feeding state ends.
2. Pressurized fluidization stage: After the feeding stage is completed, the system automatically
opens the inlet valve once. The processed compressed air enters the
fluidization cone at the bottom of the bin pump through the flow
control valve, and passes through the fluidization cone to evenly
surround each fly ash particle. At the same time, the pressure
inside the bin pump increases. When the pressure reaches the point
where the pressure sensor sends a signal, the system automatically
opens the discharge valve, and the pressurized fluidization stage
ends.
3. Transportation stage: The discharge valve and secondary inlet valve are opened, while
the primary inlet valve is not stopped. At this time, the bin pump
continues to intake air, and the mixture of gas and ash enters the
ash conveying pipe through the discharge valve. The fly ash is
always in the fluidized state and enters the conveying pipeline for
transportation. After the fly ash in the bin pump is transported,
the pipeline pressure decreases, and the pressure inside the bin
pump decreases. When the pressure sensor sends a signal, the
secondary inlet valve is closed. When the pressure inside the bin
pump continues to decrease, When the pressure sensor sends a
signal, the conveying phase ends, and the inlet and outlet valves
remain open, entering the blowing phase.
4. Purging stage: The inlet and outlet valves are kept open, compressed air is used
to purge the bin pump and ash conveying pipeline. After a certain
period of time, the purging is completed, and the inlet valve is
closed. When the pressure inside the bin pump drops to normal
pressure, the outlet valve is closed, and the inlet and exhaust
valves are opened to enter the feeding stage. At this point, the
system completes one conveying cycle and automatically enters the
next conveying cycle.
Large Capacity Pneumatic Conveying Bin Pump Parameter Table
Conveying Material | Bulk Density (t/m3) | Model | PCD24/H | PCD26/H | PCD28/H | PCD30/H | Conveying Distance | |
Specification | 16~20m3 | 18~22m3 | 20~27m3 | 26~32m3 | Level (m) | Level (m) | ||
Pulverized Coal | 0.5 | Delivery Volume (t/h) | 50~80 | 60~90 | 65~110 | 80~130 | 200 | 20 |
Fly Ash | 0.75 | 75~125 | 85~130 | 95~160 | 125~190 | 200 | 20 | |
Limestone Powder/Mineral Powder | 0.8 | 80~130 | 90~140 | 100~170 | 130~200 | 200 | 20 | |
Cement/Raw Meal | 1 | 100~150 | 115~175 | 130~215 | 165~260 | 200 | 20 |
Long-distance Pneumatic Conveying Bin Pump Parameter Table
Conveying Material | Bulk Density (t/m3) | Model | PCD24/L | PCD26/L | PCD28/L | PCD30/L | Conveying Distance | |
Specification | 16~20m3 | 18~22m3 | 20~27m3 | 26~32m3 | Level (m) | Level (m) | ||
Pulverized Coal | 0.5 | Delivery Volume (t/h) | 20~40 | 25~45 | 30~55 | 45~65 | 1000 | 25 |
Fly Ash | 0.75 | 35~60 | 45~65 | 45~80 | 65~95 | 1000 | 25 | |
Limestone Powder/Mineral Powder | 0.8 | 40~65 | 45~70 | 50~85 | 70~100 | 1000 | 25 | |
Cement/Raw Meal | 1 | 50~80 | 55~90 | 65~110 | 90~120 | 1000 | 25 |
Conventional Grid Pneumatic Conveying Bin Pump Parameter Table
Conveying Material | Bulk Density(t/m3) | Model | PCD18/N | PCD20/N | PCD20/N | Reference Conveying Distance | |
Specification | 5.0~6.7m3 | 7.0~10.0m3 | 10.0~15.0m3 | Level (m) | Vertical (m) | ||
Pulverized Coal | 0.5 | Delivery Volume (t/h) | 12~20 | 16~32 | 25~50 | 500 | 30 |
Fly Ash | 0.75 | 18~32 | 25~48 | 35~70 | 50 | ||
Limestone Powder/Mineral Powder | 0.8 | 20~35 | 26~51 | 38~75 | 500 | 30 | |
Cement/Raw Meal | 1.0 | 24~42 | 32~65 | 48~95 | 500 | 30 | |
Silicon Powder | 1.2 | 28~50 | 40~75 | 55~115 | 500 | 30 |
Parameter Table Of Small Size Pneumatic Conveying Bunker Pump
Material | Bulk Density(t/m3) | Model | PCD08/M | PCD10/M | PCD12/M | PCD14/M | Reference Conveying Distance | |
Specification | 0.2~0.5m3 | 0.6~1.6m3 | 1.5~2.5m3 | 2.5~5.0m3 | Level (m) | Vertical (m) | ||
Pulverized Coal | 0.5 | Delivery Volume (t/h) | 0.5~1.8 | 1.5~5.5 | 5.0~9.0 | 8.0~18.0 | 100 | 20 |
Fly Ash | 0.75 | 0.9~2.8 | 2.5~8.5 | 7.0~14.0 | 12.0~27.0 | 100 | 20 | |
Limestone Powder/Mineral Powder | 0.8 | 1.0~3.0 | 3.0~9.0 | 8.0~15.0 | 12.0~28.0 | 100 | 20 | |
Cement/Raw Meal | 1.0 | 1.2~3.5 | 3.5~11.5 | 10.0~18.0 | 16.0~36.0 | 100 | 20 | |
Silicon Powder | 1.2 | 1.5~4.0 | 4.5~13.5 | 12.0~20.0 | 19.0~43.0 | 100 | 20 |
Main features of the product
① Large conveying capacity: > 300t/h;
② Long distance: > 2000m;
③ Low power consumption: < 3.8kWh/t · km;
④ Low wear and tear: pipeline life>10 years;
⑤ Low speed: initial speed 6-10m/s;
⑥ High mixing ratio: > 30kg/kg;
⑦ Flexible process layout, dust-free, high operation rate, lower
investment compared to mechanical conveying, and lower maintenance
costs
Application Area
PCD pneumatic conveying equipment and systems have been widely used
in industries such as building materials, chemicals, mining, power,
and metallurgy. The conveying materials include cement, raw
materials, fly ash, hydrated lime, dry discharged calcium carbide
slag, slag powder, steel slag powder, coal powder, aluminum oxide
powder, bauxite powder, phosphorus powder, pyrophyllite powder, and
organic silicon powder.
after-sale service
We have a long-term service team for the production line, with good
technology and responsible after-sales service. All members have
over 5 years of work experience and are able to provide timely,
efficient, and comprehensive scientific after-sales service to
customers. We can provide customers with after-sales service
throughout the entire process of self engineering construction,
production line equipment installation, production line debugging,
until the production line meets the standards and reaches
production capacity, solving various difficulties and miscellaneous
problems encountered by customers, and providing thoughtful,
meticulous, and comprehensive after-sales service.