M series boilers with “volcanic” fuel supply

M series boilers are used for heating of large sized residential and industrial premises and supplying heat for technological needs. Fuel used: saw dust, wood chips. Larger pieces of wood can be burned by loading them through the combustion chamber doors.
Main characteristics of these boilers:

* for more efficient and environmentally friendlier combustion fuel humidity content should not exceed 45%

* Good economic and environmental performance

  • balanced water flow in the heat exchanger protects it from overheating and residue

  • preheated primary and secondary air is supplied into the combustion chamber

  • Efficient combustion is achieved by correct rate between the heat resistant concrete and heat exchanging surfaces. Primary and secondary air fans are separate

  • For more efficient heat exchange turbulators are mounted into tubular heat exchanger

  • Auger conveyor supplies fuel into the boiler which is spread in the combustion chamber

  • Boiler operates together with fuel storage and supply equipment

  • Ash is removed manually from the ash tray

Boiler controller controls

  • Fuel supply conveyor

  • Primary and secondary air fans

  • Boiler exhauster

  • Boiler recirculation pump

As an option boiler may be fitted with pneumatic heat exchanger cleaning system

Description

 

K-100M

K-140M

K-190M

K-250M

K-320M

K-400M

K-500M

K-600M

K-720M

K-850M

K-950M

Nominal output

kW

95

140

190

250

320

400

495

600

700

850

950

Minimum output

kW

30

42

57

75

96

120

150

180

216

255

285

Efficiency

%

82

Fuel humidity quotient

%

Mixture: 30 % humidity chips + 30 % humidity sawdust, proportion 50/50

Fuel used

 

Saw dust, Chips (length not greater than 50mm), fire wood, waste wood, saw dust or peat briquettes, coal

Water temperature adjustment range

ºC

60 – 110

Maximum operating pressure

MPa

6

Hidraulic resistance at Δt=20ºC to

 

370

380

390

410

420

430

440

440

450

460

470

Combustion chamber dimensions

H
B
L

620
500
730

620
500
930

770
680
1000

770
680
1400

820
680
1400

970
880
1500

970
800
1500

1100
1000
1700

1100
1000
1900

1100
1000
2060

1300
1000
2060

Door dimensions, BxH

mm

400×500

400×500

600×620

600×620

600×620

600×620

600×620

600×620

600×620

600×620

600×620

Fuel consuption

Kg/h

38

53

72

95

122

153

191

229

275

324

362

Water volume in the boiler

m3

0,22

0,27

0,53

0,68

0,68

0,94

1,12

2

2,15

2,25

2,35

Water yield Δt=20ºC

t/h.

4,26

5,97

8,11

10,68

13,67

17,09

21,37

25,65

30,78

36,35

40,62

Connection points

Tubes

mm

Ø68(2,5″)

Ø68(2,5″)

Ø68(2,5″)

Ø68(2,5″)

Ø68(2,5″)

Ø81(3″)

Ø81(3″)

Ø81(3″)

Ø81(3″)

Ø81(3″)

Ø81(3″)

pipe connection

mm

Ø160

Ø160

Ø160

Ø160

Ø160

Ø185

Ø185

Ø185

Ø185

Ø185

Ø185

Chimney diameter

mm

240×240

240×240

290×290

290×290

290×290

Ø325

Ø325

Ø380

Ø380

Ø480

Ø480

Exhaust gases

m3/val

507

710

963

1267

1622

2028

2535

3042

3650

4309

4816

Aerodinamic resistance

Pa

110

110

120

130

200

210

240

260

280

300

310

Mass

kg

800

900

110

2000

2200

2800

3100

3900

4300

4700

5000

 

 

Description, mm

K-100M

K-140M

K-190M

K-250M

K-320M

K-320M

K-400M

K-500M

K-600M

K-720M

K-850M

K-950M

H
B
L

1940
1000
1580

1940
1000
1625

2260
1200
1950

2260
1200
2280

2260
1200
2280

2680
1400
2400

2830
1400
2600

2830
1560
2760

2760
1560
3030

2760
1560
3220

3180
1840
3150

3180
1840
3545

A

710

710

890

890

890

1090

1090

1090

1256

1256

1476

1476

C

930

1125

1195

1395

1585

1504

1700

1890

2086

2282

2370

2760

D

1160

1335

1435

1630

1825

1800

2000

2200

2370

2560

2700

3095

E
F

1600
1120

1600
1120

1900
1300

1900
1300

1900
1300

2220
1490

2220
1490

2370
1640

2480
1670

2480
1670

2543
1605

2543
1605

M

260

260

270

270

270

380

380

380

400

400

395

395

P

240×240

240×240

290×290

290×290

290×290

Ø325

Ø325

Ø380

Ø380

Ø480

Ø480

Ø480

T

Ø65

Ø65

Ø65

Ø65

Ø65

Ø80

Ø80

Ø80

Ø80

Ø80

Ø80

Ø80

Recommended connection to the heating system diagram:

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