CN200979169Y - Highly effective cooling drum type cold slag device - Google Patents

Abstract

The utility model discloses a highly efficient cooling drum-type slag cooling device, which belongs to the drum-type slag cooling technical field and consists of a water jacket conformation and a slag duct vane which is arranged on the inner wall of the water jacket, wherein the slag duct vane is provided with at least one water pipe. The utility model greatly promotes the pressure resistance capacity and cooling effect, and reduces the slag tapping temperature, thereby being essentially applied in the boiler slag tapping devices and high-temperature granule material cooling devices in industries such as energy sources, environment protection, petroleum, chemistry, and metallurgy or the like.

Description

Efficient chilling roll formula slag cooler

Technical field

The utility model relates to industrial circle boiler deslagging device, high-temperature particle material cooling devices such as being applied to the energy, environmental protection, oil, chemical industry, metallurgy, especially a kind of efficient chilling roll formula slag cooler.

Background technology

At present, what domestic circulating fluidized bed boiler slag cooler mainly adopted is two-layer cylinder formula slag cooler, rolling-cylinder type slag-cooler mainly is to form cooling jacket by inner core and urceolus, be fixed with helical blade in it, warm sludge and cooling water reverse movement and carry out heat exchange in the slag cooler cylindrical shell rotary course, cylindrical shell rotation is delivered to low-temperature zone with warm sludge from temperature end and forms cold slag, but because the rolling-cylinder type slag-cooler cooling quantity of slag is relatively large and stepless speed regulation and generally being selected for use.Along with the extensive use of slag cooler, the water resources problem deficiency becomes increasingly conspicuous.Many users need the higher boiler water source of working pressure.This just needs the slag cooler jacket structure for water of the enough pressure of design ability

Along with the extensive use of fluidized-bed combustion boiler and the utilization again of environmental protection colm, slag amount is increasing.The user needs the slag cooler of bigger film-cooled heat.

Summary of the invention

The purpose of this utility model provides a kind of enough compression resistances that has, and increases film-cooled heat, increases substantially cooling effect, reduces tapping temperature, significantly improves the efficient chilling roll formula slag cooler that the quantity of slag.

In order to achieve the above object, the following technical scheme of employing of the present utility model: a kind of efficient chilling roll formula slag cooler, comprise install on water leg structure and the water leg inwall lead the slag blade, lead the slag blade and be provided with at least one water pipe.

The described slag blade of leading can also be to lead the slag blade by the water pipe that water pipe constitutes, and also can be arranged to state lead slag blade and water pipe and lead the slag blade and be staggered on the water leg inwall.

Described water leg structure is made up of the water channel between urceolus, inner core and the inner/outer tube.

Described water leg structure is to be arranged by some water pipes to surround.Described water leg structure can also be to be spaced by some water pipes and connecting plate to surround.Described water leg structure also can be to be spaced by some water pipes and connecting plate to surround, and, connect by double-deck connecting plate between the adjacent water pipe.

Described water pipe structure has increased the compression resistance of slag cooler, is connected with condensed water in the described water pipe, has increased film-cooled heat, has improved cooling effect.

Analyze the slag cooler heat exchange, mainly have four kinds of approach: the conduction heat transfer of slag and inwall; The inside and outside heat of inner core is transmitted; The conduction heat transfer in inner tank theca and water jacket boundary layer (water speed is zero); The heat convection of water.

Heat transfer rate depends on overall heat-transfer coefficient K

Overall heat-transfer coefficient: $\frac{1}{K}=\frac{1}{K1}+\frac{1}{K2}+\frac{1}{K3}+\frac{1}{\mathrm{<figure-callout\; id="4"\; label="K"\; filenames="Y20062003654200073.png,Y20062003654200081.png"\; state="\{\{state\}\}">K</figure-callout>}4}$

K is an overall heat-transfer coefficient; K1 is the heat transfer coefficient of slag and inwall; K2 is the heat transfer coefficient of inner core inwall and inner tank theca; K3 is the conduction heat transfer coefficient that inner tank theca adheres to detention layer (water speed is 0); K4 is the convective heat-transfer coefficient of detention layer and turbosphere water.

K2, K3 be by hot conduction technique as can be known: it is worth 10 ⁴W/m ²More than ℃; K4 is a convective heat-transfer coefficient, and the convective heat-transfer coefficient of water has hundreds of w/m ²℃, the heat transfer coefficient of K1 has only 1/50 of water convective heat-transfer coefficient, so the heat transfer coefficient of slag, is the 'bottleneck' restrictions factor that influences overall heat-transfer coefficient.

The main cause that the heat transfer coefficient of slag is lower is material in the middle of two blades, and the ulking thickness height becomes the cake shape half, and middle most material does not contact with heat transferring medium.Material contacts many more with heat transferring medium, the coefficient of heat transfer is high more, and it is fast more to conduct heat.

According to above-mentioned principle, the slag blade of leading that this programme is fixed with on inner core with inwall is provided with at least one water pipe.When material stirs downwards and travels forward from the inner core blade.In the contact process of blade and material, cold water pipe on the blade is taken away heat, material is a large amount of shedding in stirring process, fully contact with air, take away heat, the slag that contacts with inner core is also taken away heat by inner core, material stirs material at inner core from the inner core blade like this, becomes a plurality of cooling surfaces by a cooling surface, and utilizes air-cooled or water-cooled, the corresponding raising of contact heat-exchanging area, thereby improved heat exchange efficiency greatly, broken through the tapping temperature limit (about 200 degree) of cylinder type cold slag machine, reached below 100 degree, because kept the advantage of former rolling-cylinder type slag-cooler, the slag cooler life-span reached more than 10 years.

The utlity model has the compression resistance height, long service life, the heat exchange efficiency height, film-cooled heat is big, good cooling results, tapping temperature is low, goes out the big advantage of the quantity of slag.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the A-A cutaway view of Fig. 1 among the utility model embodiment 1;

Fig. 3 is the A-A cutaway view of Fig. 1 among the utility model embodiment 2;

Fig. 4 is the A-A cutaway view of Fig. 1 among the utility model embodiment 3;

Fig. 5 is the A-A cutaway view of Fig. 1 among the utility model embodiment 4;

Fig. 6 is the A-A cutaway view of Fig. 1 among the utility model embodiment 5;

Fig. 7 is the A-A cutaway view of Fig. 1 among the utility model embodiment 6;

Fig. 8 is the A-A cutaway view of Fig. 1 among the utility model embodiment 7;

Fig. 9 is the A-A cutaway view of Fig. 1 among the utility model embodiment 8;

Figure 10 is the A-A cutaway view of Fig. 1 among the utility model embodiment 9;

Wherein, Reference numeral is: 1 for urceolus, and 2 is inner core, and 3 for leading the slag blade, and 4 is water channel, and 5 lead the slag blade for water pipe, and 6 is water pipe, and 7 is connecting plate.

The specific embodiment

Below in conjunction with embodiment the utility model is described.

Embodiment 1:

As shown in Figure 1 and Figure 2, a kind of efficient chilling roll formula slag cooler, comprise install on urceolus 1, inner core 2 and the inner core inwall lead slag blade 3, be formed with water channel 4 between urceolus 1 and the inner core 2, the described slag blade 3 of leading is provided with a water pipe 6.

Embodiment 2:

As Fig. 1, shown in Figure 3, a kind of efficient chilling roll formula slag cooler, comprise install on urceolus 1, inner core 2 and the inner core inwall lead slag blade 3, be formed with water channel 4 between urceolus 1 and the inner core 2, the described slag blade 3 of leading is provided with two water pipes 6.

Embodiment 3:

As Fig. 1, shown in Figure 4, a kind of efficient chilling roll formula slag cooler comprises urceolus 1, inner core 2, and the water channel 4 that forms between urceolus 1 and the inner core 2, the water pipe that is made of water pipe 6 is installed on the described inner core inwall is led slag blade 5.

Embodiment 4:

As Fig. 1, shown in Figure 5, a kind of efficient chilling roll formula slag cooler, comprise install on urceolus 1, inner core 2 and the inner core inwall lead slag blade 3, be formed with water channel 4 between urceolus 1 and the inner core 2, the described slag blade 3 of leading is led slag blade 5 with water pipe and is staggered on the inner core inwall.

Embodiment 5:

As Fig. 1, shown in Figure 6, a kind of efficient chilling roll formula slag cooler comprises by some water pipes 6 and arranges the water leg that surrounds, and install on the water leg inwall lead slag blade 3, the described slag blade 3 of leading is provided with a water pipe 6.

Embodiment 6:

As Fig. 1, shown in Figure 7, a kind of efficient chilling roll formula slag cooler comprises by some water pipes 6 and arranges the water leg that surrounds, and the water pipe of installing on the water leg inwall that is made of water pipe 6 is led slag blade 5.

Embodiment 7:

As Fig. 1, shown in Figure 8, a kind of efficient chilling roll formula slag cooler comprises by some water pipes 6 and arranges the water leg that surrounds, and the staggered slag blade 3 of leading that is provided with on the water leg inwall is led slag blade 5 with water pipe.

Embodiment 8:

As Fig. 1, shown in Figure 9, a kind of efficient chilling roll formula slag cooler comprises by some water pipes 6 and connecting plate 7 being spaced the water leg that surrounds, and be provided with on the water leg inwall lead slag blade 3, the described slag blade 3 of leading is provided with a water pipe 6.

Embodiment 9:

As Fig. 1, shown in Figure 10, a kind of efficient chilling roll formula slag cooler, comprise be provided with on water leg and the water leg inwall lead slag blade 3, wherein, described water leg structure is to be arranged by water pipe 6 and connecting plate 7 to form, and, connect by double-deck connecting plate 7 between the adjacent water pipe 6; The described slag blade 3 of leading is provided with a water pipe 6.

Claims (10)

1, a kind of efficient chilling roll formula slag cooler, comprise install on water leg structure and the water leg inwall lead slag blade (3), it is characterized in that: the described slag blade (3) of leading is provided with at least one water pipe (6).

2, efficient chilling roll formula slag cooler according to claim 1 is characterized in that: the described slag blade (3) of leading is to lead slag blade (5) by the water pipe that water pipe (6) constitutes.

3, efficient chilling roll formula slag cooler according to claim 1 and 2 is characterized in that: described slag blade (3) and the water pipe of leading led slag blade (5) and is staggered on the water leg inwall.

4, efficient chilling roll formula slag cooler according to claim 1 and 2, it is characterized in that: described water leg structure is made up of the water channel (4) between urceolus (1), inner core (2) and the inner/outer tube.

5, efficient chilling roll formula slag cooler according to claim 3, it is characterized in that: described water leg structure is made up of the water channel (4) between urceolus (1), inner core (2) and the inner/outer tube.

6, efficient chilling roll formula slag cooler according to claim 1 and 2 is characterized in that: described water leg structure is to be arranged by some water pipes (6) to surround.

7, efficient chilling roll formula slag cooler according to claim 3 is characterized in that: described water leg structure is to be arranged by some water pipes (6) to surround.

8, efficient chilling roll formula slag cooler according to claim 1 and 2 is characterized in that: described water leg structure is to be spaced by some water pipes (6) and connecting plate (7) to surround.

9, efficient chilling roll formula slag cooler according to claim 3 is characterized in that: described water leg structure is to be spaced by some water pipes (6) and connecting plate (7) to surround.

10, efficient chilling roll formula slag cooler according to claim 8 is characterized in that: described water leg structure is to be arranged by water pipe (6) and connecting plate (7) to form, and, connect by double-deck connecting plate (7) between the adjacent water pipe (6).

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