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  • 产品名称: LQB insulation asphalt pump
  • 上架时间: 2017-05-15
  • Views : 134

Asphalt insulation gear pump: beautiful appearance, low noise, running performance, transmission efficiency is high, easy to form oil film, improve the contact fatigue strength and bending strength, to prevent tooth pitting and teeth break. The side of the pump body set the sandwich, heat conduction oil so that the asphalt is always in the pump above the temperature. The high-temperature wear-resistant packing is used in the dynamic seal to ensure that the asphalt is not leaked. The pump is ideal for asphalt conveying, canning and spraying of the asphalt plant (station), and also for other high-viscosity media.
Specifications: 10t / h, 20t / h, 30t / h, 50t / h.

 

The asphalt gear pump with double circular arc meshing gear transmission. Sufficient tooth width can be achieved multi-tooth meshing, and each pair of teeth have two meshing points, the radius of curvature of the meshing point is very large. Therefore, the multi-meshing double circular arc gear has a high contact strength, smooth transmission, low noise. After carrying the run, the contact becomes a line contact, and the sensitivity of the wire contact on the manufacturing and installation error of the involute gear is eliminated, and the load concentration is prevented and the carrying capacity is improved. Double arc tooth root strong, high bending strength. There is no different sliding speed of the meshing points of the involute gears, which improves the transmission efficiency and service life.
In order to improve the volumetric efficiency, tightly sealed everywhere. Rotary dynamic seal with special packing, high temperature wear resistance, good sealing effect. The lower part of the pump body is provided with heat preservation oil storage and flow space, and the asphalt is heated to ensure that the conveying medium - asphalt is always above the pumping temperature.
The asphalt gear pump has two kinds of structural specifications: the motor through the coupling directly with the active pump shaft (direct type), the use of six motors; motor through a pair of deceleration pulleys and active pump shaft Type), useful four motor.
The asphalt gear pump is used in the asphalt mixture mixing equipment as the liquid asphalt conveying and spraying work. It is also the ideal equipment for the asphalt conveying, canning, discharging and spraying of the asphalt plant (station), and also used for other high viscosity media.
2, the main technical specifications
LQB10 (10t / h): Diameter: DN50 (2 ")
Pressure: 0.2MPa
Working temperature: 230 ℃
Equipped with motor power: 4KW
Flow: Direct connection: 250L / min
Belt type: 238 L / min
Input shaft speed: Direct connection: 960r / min
Belt type: 926 r / min
LQB20 (20t / h): Diameter: DN65 (21/2 ")
Pressure: 0.2MPa
Working temperature: 230 ℃
Equipped with motor power: 5.5KW
Flow: Direct connection: 400L / min
Belt type: 390L / min
Input shaft speed: Direct connection: 960r / min
Belt type: 926 r / min
LQB30 (30t / h): Diameter: DN50 (3 ")
Pressure: 0.2MPa
Working temperature: 230 ℃
Equipped with motor power: 7.5KW
Flow: Direct connection: 550L / min
Belt type: 523 L / min
Input shaft speed: Direct connection: 970r / min
Belt type: 926 r / min
LQB50 (50t / h): Diameter: DN100 (4 ")
Pressure: 0.2MPa
Working temperature: 230 ℃
Equipped with motor power: 15KW
Flow: Direct connection: 970L / min
Belt type: 939 L / min
Input shaft speed: Direct connection: 970r / min
Belt type: 939 r / min
 
3, contact size
Direct connection

Model
DN
D
d
a
h1
h2
L1
L2
LQB10
50
110
M12
264
235
270
80
616.24
LQB20
65
130
M12
280
245
282.57
92
579.24
LQB30
80
150
M16
290
255
296.5
102
697.24
LQB50
100
170
M16
320
275
326
127
835

 

 

Model
L3
L4
L5
L6
L7
地脚螺栓
GB799
LQB10
776.24
27
830
338
440
4-M16×220
LQB20
763.24
28
820
339
440
4-M16×220
LQB30
901.24
27
955
388
490
4-M16×220
LQB50
1089.84
28
1145
416
520
4-M16×220

Belt type

 

Model
DN
D
d
a
h1
h2
L1
L2
L3
LQB10
50
110
M12
264
235
270
130
525
785
LQB20
65
130
M12
280
245
282.57
135
540
810
LQB30
80
150
M16
290
255
296.5
140
555
835
LQB50
100
170
M16
320
275
326
155
645
955

 

 

Model
L4
L5
L6
L7
L8
L9
L10
L11
地脚螺栓
GB799
LQB10
27
840
273
373
50
578
230
476
4-M16×220
LQB20
27
864
315
415
50
570
250
468
4-M16×220
LQB30
27
890
351
450
50
612
260
511
4-M16×220
LQB50
28
1010
452
550
50
700
290
600
4-M16×220

 

4, installation and use
The base on the base surface or other components on the surface with 4-M16 anchor bolts should not be deformed. According to the scene to connect the pump inlet and outlet piping, with 3/4 "pipe connected to the hot oil pipeline, the pump side 2-G3 / 4" thread interface out of each one.
In order to prevent high temperature heat transfer oil for a long time through the asphalt pump to produce thermal deformation, the installation of asphalt pump, the customer in accordance with the contact dimension diagram parallel thermal oil branch.
Before the pump starts, open the shut-off valve, close the stop valve B, so that the heat transfer oil through the asphalt pump asphalt. After the pump starts, close the shut-off valve, open the shut-off valve B, so that the heat transfer oil from the slip road.
Adjust the degree of compression of the active pump shaft dynamic seal packing gland to make it flexible and not oily.
Before the first start should be through the pump inlet (or exit) to the gear teeth on the injection of oil, so that the teeth and even the bearing lubrication, and then start using. The asphalt pump for the one-way pump, import and export pipeline should pay attention to the direction of import and export. The active pump shaft should be in the same direction as the arrow on the pump. Oil suction, oil discharge direction and the relationship between the active pump shaft as shown below:
 
 
Each time the pump is used to heat the tubing and the asphalt in the pump and then start the pump.
5, maintenance
1. Regularly check the operation of the pump, with particular attention to whether the dynamic seal at the heat and oil leakage, in order to adjust the sealing gland and compression level.
2. Roller bearings with belt drive Asphalt pump grease once every three months.
3. Always clean the pump's appearance and around, so that the normal operation.
6, transmission with V-belt and bearings
Belt drive asphalt pump V belt models and specifications and bearing models see table below:

 

 

 

Number of pumps
 
 
 
 
 
 
V belt
Bearing
Remarks
model
Quantity (branch)
model
Quantity

LQB10

C1526
2
Z390506
1
With seat bearing
LQB20
C1526
2
Z390506
1
With seat bearing
LQB30
C1564
2
Z390507
1
With seat bearing
LQB50
C1716
2
Z90509
1
With seat bearing

 

 

 

Number of pumps
 
 
 
 
 

 

Chain model
Pitch mm
Section number
Remarks

LQB10

08A
12.70
22
 
LQB20
08A
12.70
22
 
LQB30
08A
12.70
22
 
LQB50
12A
19.05
18