Shandong Alva Machinery Co., Ltd.
ALVA(Linyi) Electromechanical Technology Co., Ltd

Coal-fired (biomass) steam, hot water boile

Coal-fired (biomass) steam, hot water boile

The DZL series quick-installation boiler is a horizontal three-pass water pipe chain grate boiler.
Medium quality bituminous coal and anthracite coal. The boiler body is a single drum arranged longitudinally, and a screw is arranged inside the drum.
The patterned smoke tube forms the convection heating surface, and the drum and water-cooling walls on both sides form the furnace radiation heating surface.
Hot noodles. The combustion equipment adopts light chain grate; the whole unit is shipped from the factory in quick assembly form. Electrical control
The system realizes stepless speed regulation of the grate, extreme parameter alarm and interlocking protection.

Alva corporate purpose

Create value for customers, create benefits for partners, create future for employees, and create wealth for society Quality Policy

Excellent quality, perfect service, continuous improvement, meeting customer requirements

​Chairman of Alva’s business philosophy:

To quote William Deming. Product quality is produced, not tested

Product quality is not shown in words, pictures, or videos, but is achieved step by step through continuous practice, innovation and reform. Every product of Alva is through technical research and development, production practice, and quality checks, and finally creates the most cost-effective products for our customers. Believe in China Alva, believe in your own choice. Alva never disappoints any client. thanks.

Steam Boiler:

The DZL series quick-installation boiler is a horizontal three-pass water pipe chain grate boiler.
Medium quality bituminous coal and anthracite coal. The boiler body is a single drum arranged longitudinally, and a screw is arranged inside the drum.
The patterned smoke tube forms the convection heating surface, and the drum and water-cooling walls on both sides form the furnace radiation heating surface.
Hot noodles. The combustion equipment adopts light chain grate; the whole unit is shipped from the factory in quick assembly form. Electrical control
The system realizes stepless speed regulation of the grate, extreme parameter alarm and interlocking protection.

Product parameter list

                             DZL type single drum longitudinal coal-fired (biomass) steam boiler technical parameters
project Boiler model
DZL0.5-0.7 DZL1-0.8 DZL1-1.0 DZL2-1.25 ZDL4-1.25
Rated evaporation capacity (t/h) 0.5 1 1 2 4
Rated working pressure (Mpa) 0.7 0.8 1 1.25 1.25
Rated steam temperature (℃) 171 175 184 194 194
Feed water temperature (℃) 20 20 20 20 20
Heating area (m²) 22.5 32.4 42 80 104
Economizer(m²) 8.25 12.51 15 20 32.4
Effective area of grate (m²) 1.45 2.05 1.8 3 5865
Applicable fuel Class II and III bituminous coal and biomass
Applicable amount of boiler fuel (kg/h) 88 170 146 289 546
Boiler thermal efficiency (%) 74 76.8 80 86 88
                        DZL type single drum longitudinal coal-fired (biomass) hot water boiler technical parameters 
project Boiler model
DZL0.7-0.7/ DZL1.4-0.7/ DZL2.8-0.7/ DZL4.2-0.71 DZL7-0.71
95/70-A Ⅱ 95/70-A Ⅱ 95/70-A Ⅱ 95/70-AⅡ 95/70-A Ⅱ
Rated thermal power (MW) 0.7 1.4 2.8 4.2 7
Rated working pressure (Mpa) 0.7 0.7 0.7 0.7 0.7
Outlet water temperature (℃) 95 95 95 95 95
Return water temperature (℃) 70 70 70 70 70
Heating area (m²) 32.4 59 114.6 242 400
Effective area of grate (m²) 2.05 3.17 4.04 8 15
Applicable fuel Class II and III bituminous coal and biomass
Applicable amount of boiler fuel (kg/h) 170 335 665 900 1500
Boiler thermal efficiency (%) 76.8 77.7 78.9 88 86

Why Choose Us:

  1. lasering your logo on products and designing logo is free
  2. Inspect the machine before leaving the factory
  3. Oversea install and debug the equipment
  4. Train the first-line operator
  5. 24 hours online service
  6. Provide the VIDEO with install and debug the equipment
  7. Provide technical exchanging
  8. Delivery time within 30days
  9. No else charge
  10. MOQ≥1
  11. Provide products quotation
  12. Provide Packaging customization service
  13. SupportWechat/Email/whatsapp/
  14. We specializein this field for 25 years
  15. Excellent after-sale system
  16. Supporting visits to factoryPre-sale services:

    We provide best service according to your demand, such as prophase plan, examine on the spot, process flow design , customized equipment, design solution for complete production lines and operator training etc.

    Service during the sales: 

    Send technicians to the customer’s factory to install and debug the machine on site, train operators for free and you can also come to our factory to learn for free.

    After-sale services:

    We provide one year warranty to make sure your machine runs consistently. We always keep certain inventory level of spare parts, which means the replancements can be shipped to your right away.

     

     

     

    FAQ:

    Q1:Can you customize products for clients?

    A1: Yes, we can customize and produce woodworking machinery according to customers’ requirements or drawings.

    Q2:What about your products quality?

    A2:We can provide you samples for quality inspection. If you order, we guarantee the quality is same with sample. In case of quality problem, we can sign agreements and our company will perform the duties.

    Q3:How can we trust your factory?

    A3:We recommend that you come to our factory to see the goods,to verify the real situation of the products, and know more about our factory.

    Q4:Why does the price often change?

    A4:The price depends on the latest prices of the raw materials.

    Q5:What about the contract signing?

    A5: If you’re satisfied with the products and our service, you can sign the contract with us, pay the deposit Then we’ll produce the machines as soon as possible. If you are far away, we can sign the contract by fax. We will ensure the quality of the products and the accessories are complete.

    Q6: How about delivery?

    A: when the product is ready, it can be delivered to you after your full payment. Will provide technical guidance.

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