CN208735656U - A kind of air-coal mixer - Google Patents

Abstract

The utility model discloses a kind of air-coal mixer, including blast pipe, skewed slot and coal feeding pipe, the top of the lateral surface of blast pipe is arranged in the skewed slot, the coal feeding pipe is inclined on skewed slot, and the lower end of the coal feeding pipe is connected to blast pipe, the top of the coal feeding pipe is equipped with coal import, outside at the coal feeding pipe upper inlet is equipped with the first installing ring connecting with coal chute road, the second installing ring is equipped at the both-side opening of the blast pipe, the lower end of the coal feeding pipe and blast pipe connectivity part are equipped with coal powder entrance, middle position inside the blast pipe, which is horizontally disposed with, partition, the partition and coal inlet are in same vertical line；The utility model plays the effect of increase by the effect of skewed slot, blast pipe internal partition etc. to the wind pressure flow velocity of wind, so that wind and coal be made to be mixed, does not need the external energy, energy conservation and environmental protection, and the inside coal dust of the utility model will not flow back into coal feeding pipe.

Description

A kind of air-coal mixer

Technical field

The utility model relates to fuel mixing apparatus technical field more particularly to a kind of air-coal mixers.

Background technique

Air-coal mixer is arranged on the equipment on Coal-fired Boiler Being powder pipeline, and it is defeated to be applied to intermediate storage-type coal-burning boiler Coal measures system, is primarily used to mix with air coal dust, increases combustible gas component content, improves calorific value, stablizes boiler combustion It burns, existing air-coal mixer, agitation mixing generally is carried out to wind coal using external energy, wind coal is made to reach mixed uniformly mesh 's.It needs to consume extra power, causes to waste, and be typically provided two groups of baffles inside existing air-coal mixer, it is right again in this way Wind during shunting mixing is possible to that return air power can be generated, and coal dust is caused to flow back into coal feeding pipe, meanwhile, existing wind coal is mixed Clutch mixing is uneven, and a part of wind is difficult to sufficiently contact with coal dust after being shunted by partition, in addition, existing air-coal mixer makes Used time is easy to produce noise, causes noise pollution, and therefore, the utility model proposes a kind of air-coal mixers to solve the prior art The problem of.

Utility model content

In view of the above-mentioned problems, the air-coal mixer passes through skewed slot, blast pipe the utility model proposes a kind of air-coal mixer The effect of increase is played in the effect of internal partition and inclined plate to the wind pressure flow velocity of wind, so that wind and coal be made to be mixed, does not need The external energy, energy conservation and environmental protection, and the inside coal dust of the air-coal mixer will not flow back into coal feeding pipe.

To solve the above-mentioned problems, the utility model proposes a kind of air-coal mixer, including blast pipe, skewed slot and into coal The top of the lateral surface of blast pipe is arranged in pipe, the skewed slot, and the coal feeding pipe is inclined on skewed slot, and described into coal The lower end of pipe is connected to blast pipe, and the top of the coal feeding pipe is equipped with coal import, the outside at the coal feeding pipe upper inlet Equipped with the first installing ring connecting with coal chute road, be equipped with the second installing ring at the both-side opening of the blast pipe, it is described into The lower end of coal pipe and blast pipe connectivity part are equipped with coal entrance, the middle position inside the blast pipe is horizontally disposed have every In same vertical line, the side wall of the partition and blast pipe is fixedly mounted for plate, the partition and coal inlet, and will air inlet Middle position inside pipe is divided into two semi-circular channels, the blast pipe interior bottom portion up and down and is equipped with far from the side of skewed slot Inclined plate.

Further improvement lies in that: at least provided with four group of first mounting hole, second installing ring on first installing ring On at least provided with four group of second mounting hole.

Further improvement lies in that: the blast pipe outer sheath is equipped with the elastic hush pipe for reducing wind coal mixing noise.

Further improvement lies in that: inclined-plane is arranged with coal feeding pipe circular symmetry in the two sides of the skewed slot, and the inclination angle on inclined-plane is 45°。

Further improvement lies in that: the coal feeding pipe is skewed, and in coal feeding pipe and skewed slot the angle of bottom be 35 °- 55°。

Further improvement lies in that: the coal feed point diameter of the coal feeding pipe is greater than coal outlet diameter.

The utility model has the following beneficial effects: the utility model passes through the effect of skewed slot, blast pipe internal partition and inclined plate The effect of increase is played to the wind pressure flow velocity of wind, so that wind and coal be made to be mixed, does not need the external energy, energy conservation and environmental protection, And the inside of the utility model is equipped with one group of partition, during shunting to wind, wind can pass through from partition upper and lower, without the Two groups of partition second diffluences generate return air power, and coal dust is avoided to flow back into coal feeding pipe, meanwhile, the utility model is by partition point After stream, wind and coal dust above partition are mixed, and the wind below partition passes through inclined plate, is directed at mixing, provide an increase Wind pressure mixing force improves mixed effect, in addition, the utility model is equipped with hush pipe, generation when can effectively reduce the mixing of wind coal Noise pollution.

Detailed description of the invention

Fig. 1 is the main view of the utility model.

Fig. 2 is the side view of the utility model.

Fig. 3 is the inside wind direction schematic diagram of the utility model.

Wherein: 1- blast pipe, 2- skewed slot, 3- coal feeding pipe, the first installing ring of 4-, the second installing ring of 5-, 6- partition, 7- are oblique Plate, the first mounting hole of 8-, the second mounting hole of 9-, 10- hush pipe.

Specific embodiment

In order to deepen the understanding to the utility model, the utility model is further described below in conjunction with embodiment, The present embodiment is only used for explaining the utility model, does not constitute the restriction to scope of protection of the utility model.

According to Fig. 1,2,3, a kind of air-coal mixer is present embodiments provided, including blast pipe 1, skewed slot 2 and into coal The top of the lateral surface of blast pipe 1 is arranged in pipe 3, the skewed slot 2, and the coal feeding pipe 3 is inclined on skewed slot 2, and institute The lower end for stating coal feeding pipe 3 is connected to blast pipe 1, and the top of the coal feeding pipe 3 is equipped with coal import, 3 top of coal feeding pipe into Outside at mouthful is equipped with the first installing ring 4 connecting with coal chute road, is equipped with the second peace at the both-side opening of the blast pipe 1 Dress circle 5, the lower end of the coal feeding pipe 3 and 1 connectivity part of blast pipe are equipped with coal entrance, the middle position inside the blast pipe 1 Place is horizontally disposed partition 6, and the partition 6 and coal inlet are in same vertical line, the side of the partition 6 and blast pipe 1 Wall is fixedly mounted, and middle position blast pipe 1 inside is divided into upper and lower two semi-circular channels, inside the blast pipe 1 Bottom is equipped with inclined plate 7 far from the side of skewed slot 2, at least provided with four group of first mounting hole 8 on first installing ring 4, described the At least provided with four group of second mounting hole 9 on two installing rings 5, facilitate installation, 1 outer sheath of blast pipe is equipped with for reducing wind coal The elastic hush pipe 10 for mixing noise facilitates reduction noise, and inclined-plane is arranged with 3 circular symmetry of coal feeding pipe in the two sides of the skewed slot 2, And the inclination angle on inclined-plane is 45 °, increases wind speed when conveniently passing through wind, the coal feeding pipe 3 is skewed, and coal feeding pipe 3 and skewed slot 2 The angle of interior bottom is 40 °, and the coal feed point diameter of the coal feeding pipe 3 is greater than coal outlet diameter, and coal dust is facilitated to enter and fall.

The air-coal mixer plays the wind pressure flow velocity of wind by the effect of skewed slot 2,1 internal partition 6 of blast pipe and inclined plate 7 The effect of increase does not need the external energy, energy conservation and environmental protection, and the air-coal mixer is interior so that wind and coal be made to be mixed Portion be equipped with one group of partition 6, during shunting to wind, wind can pass through from 6 upper and lower of partition, without second group partition 6 two times Shunt generate return air power, avoid coal dust from flowing back into coal feeding pipe 3, meanwhile, the air-coal mixer by partition 6 shunting after, every The wind of the wind of 6 top of plate and coal dust mixing, 6 lower section of partition passes through inclined plate 7, is directed at mixing, provides the wind pressure of an increase Mixing force improves mixed effect, in addition, the air-coal mixer is equipped with hush pipe 10, generation when can effectively reduce the mixing of wind coal Noise pollution.

Before use, the first mounting hole 8 of the side of blast pipe 1 by the first installing ring 4 and thereon is first fixed on defeated wind Pipeline on, then the other side of blast pipe 1 is fixed on coal-burning boiler by the first installing ring 4 and the first mounting hole 8 thereon Feed pipe on, then the pipeline of the second mounting hole 9 and defeated coal by coal feeding pipe 3 by the second installing ring 5 and thereon is fixed, In use, wind enters blast pipe 1, coal dust falls into blast pipe 1 from coal feeding pipe 3, and wind passes through skewed slot 2, and bore becomes smaller, and wind pressure becomes larger, Flow velocity increases, and wind is separated by partition 6, and the wind of 6 top of partition is mixed with the coal dust fallen, and the wind of 6 lower section of partition passes through inclined plate 7, It is directed at mixing, the wind pressure mixing force of an increase is provided, when wind coal mixtures pass through 1 second half section of blast pipe, due to urgency The wind pressure of speed generates harsh noise, is obstructed and weakens by hush pipe 10.

The basic principles and main features and advantage of the utility model have been shown and described above.The technical staff of the industry It should be appreciated that the present utility model is not limited to the above embodiments, the above embodiments and description only describe this The principle of utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model also has various change And improvement, these various changes and improvements fall within the scope of the claimed invention.The utility model requires protection scope It is defined by the appending claims and its equivalent thereof.

Claims (6)

1. a kind of air-coal mixer, it is characterised in that: including blast pipe (1), skewed slot (2) and coal feeding pipe (3), the skewed slot (2) It is arranged in the top of the lateral surface of blast pipe (1), the coal feeding pipe (3) is inclined on skewed slot (2), and the coal feeding pipe (3) lower end is connected to blast pipe (1), and the top of the coal feeding pipe (3) is equipped with coal import, above the coal feeding pipe (3) into The outside at mouthful place is equipped with the equipped with the first installing ring (4) for connecting with coal chute road at the both-side opening of the blast pipe (1) Two installing rings (5), the lower end of the coal feeding pipe (3) and blast pipe (1) connectivity part are equipped with coal entrance, and the blast pipe (1) is interior The middle position in portion is horizontally disposed to be had partition (6), the partition (6) and coal inlet in same vertical line, it is described every Plate (6) and the side wall of blast pipe (1) are fixedly mounted, and the middle position inside blast pipe (1) is divided into upper and lower two and half Circular channel, blast pipe (1) interior bottom portion are equipped with inclined plate (7) far from the side of skewed slot (2).

2. a kind of air-coal mixer according to claim 1, it is characterised in that: at least set on first installing ring (4) There is four group of first mounting hole (8), at least provided with four group of second mounting hole (9) on second installing ring (5).

3. a kind of air-coal mixer according to claim 1, it is characterised in that: blast pipe (1) outer sheath, which is equipped with, to be used In the elastic hush pipe (10) for reducing wind coal mixing noise.

4. a kind of air-coal mixer according to claim 1, it is characterised in that: the two sides of the skewed slot (2) are with coal feeding pipe (3) inclined-plane is arranged in circular symmetry, and the inclination angle on inclined-plane is 45 °.

5. a kind of air-coal mixer according to claim 1, it is characterised in that: the coal feeding pipe (3) is skewed, and into Coal pipe (3) and the angle of skewed slot (2) interior bottom are 35 ° -55 °.

6. a kind of air-coal mixer according to claim 1, it is characterised in that: the coal feed point diameter of the coal feeding pipe (3) Greater than coal outlet diameter.