Novel material scattering box with combustor

Abstract

The utility model belongs to the technical field of cement production, and particularly relates to a novel material scattering box with a burner, which comprises an air pipe, a material scattering box and a blanking pipe, a material outlet of the material scattering box is fixedly connected with the side wall of the air pipe, a material inlet of the material scattering box is close to an air outlet of the air pipe to enable the material scattering box to be obliquely arranged, and the material inlet of the material scattering box is communicated with the blanking pipe. A material scattering plate is arranged in the material scattering box, a flat-mouth coal pipe penetrating through the material scattering box is arranged between the material scattering plate and the discharging pipe, and the flat-mouth coal pipe and the material scattering plate are arranged in an inclined mode. According to the device, materials in the blanking pipe are uniformly mixed with pulverized coal in the flat-mouth coal pipe, so that the materials are sufficiently combusted in a subsequent decomposing furnace, and the burn-off rate is improved; the problems that the flat-nozzle coal pipe is easily bent and deformed due to high temperature in the decomposing furnace, the outlet of the flat-nozzle coal pipe is seriously skinned, and local high temperature is caused are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cement production technical field, specifically, relate to a novel take burner material spreading box. BACKGROUND

[0002] The material spreading box is an important part of the cement kiln tail preheater, which has the function of fully dispersing the high-temperature material in the form of clusters or lumps in the material spreading box and uniformly spreading into the upward airflow of the air pipe for the subsequent use of the decomposing furnace. The existing material spreading box is either adjusted in the angle of the material spreading plate and the length of the material spreading plate into the air pipe to achieve the material spreading effect, but the size of the material spreading plate is large and the material spreading plate is deeply into the air pipe, which has an impact on the airflow in the air pipe; or the material spreading box is added with a scattering device or a material throwing device to achieve the material spreading effect, which has improved the material spreading effect, but the structure is complex, the failure rate is high and the maintenance is frequent. In view of this, in order to overcome the above technical problems, the utility model designs and develops a novel material spreading box with a burner, which solves the above technical problems. SUMMARY

[0003] In order to solve the above technical problems, the utility model provides a novel material spreading box with a burner, which comprises an air pipe, a material spreading box and a discharge pipe, the lower side of the air pipe is an air inlet, the upper side of the air pipe is an air outlet, the discharge opening of the material spreading box is fixedly connected with the side wall of the air pipe, the material inlet of the material spreading box is close to the air outlet of the air pipe to make the material spreading box be inclined, the material inlet of the material spreading box is communicated with the discharge pipe, a material spreading plate is arranged in the material spreading box, one end of the material spreading plate is fixedly connected with the side wall of the material spreading box close to the air inlet of the air pipe, the other end of the material spreading plate extends to the lower side of the side opening of the air pipe and is fixedly connected with the air pipe, a flat mouth coal pipe is arranged between the material spreading plate and the discharge pipe and penetrates through the material spreading box, and the flat mouth coal pipe and the material spreading plate are both inclined.

[0004] Further, the flat mouth coal pipe comprises a circular channel and a flat mouth channel, the flat mouth channel is isosceles trapezoidal, the narrow end of the flat mouth channel is matched with and fixedly connected with one end of the circular channel, the flat mouth coal pipe penetrates into the material spreading box, the pulverized coal is added into the material spreading box through the flat mouth coal pipe, is uniformly dispersed on the material spreading plate through the flat mouth channel, is uniformly mixed with the material flowed out of the discharge pipe, avoids the agglomeration of the pulverized coal in the material, can realize the full combustion of the pulverized coal in the decomposing furnace, and can effectively avoid the local high temperature and improve the burnout rate of the pulverized coal.

[0005] Further, a plurality of baffles are arranged in the flat mouth channel, the two ends of the baffle are correspondingly connected with the wide end and the narrow end of the flat mouth channel, the baffle equally divides the flat mouth channel into a plurality of intervals, the material entering the flat mouth channel is dispersed in the flat mouth channel due to its own weight and flows into different intervals, and the baffle further guides the flow, so that the pulverized coal is more uniformly distributed, and the pulverized coal is further uniformly dispersed with the material of the discharge pipe.

[0006] Further, the air pipe, the material spreading box, the flat nozzle coal pipe and the material spreading plate are made of fireproof and heat-resistant materials, and the materials used for the air pipe connected with the decomposition furnace, the material spreading box close to the decomposition furnace, the flat nozzle coal pipe and the material spreading plate need to be fireproof and high-temperature resistant.

[0007] The utility model also includes other devices or components capable of enabling the novel material spreading box with burner to be normally used, which are all conventional technical means in the field.

[0008] The working principle of the utility model is that the flat nozzle coal pipe and the material spreading plate are inserted into the material spreading box at a certain angle, so that the coal powder sprayed by the flat nozzle coal pipe and the material discharged from the discharge pipe form a certain angle, the flat nozzle design can make the coal powder be uniformly dispersed horizontally and fully and uniformly mixed with the material, the decomposition furnace can be fully combusted, local high temperature can be effectively avoided, and the coal powder burnout rate can be improved; in addition, after the material in the material spreading box is skinned, the air pipe can also increase the air pressure, the material accumulated on the material spreading box can be blown away, and the clogging problem can be solved.

[0009] The utility model has the advantages that the device can uniformly mix the material in the discharge pipe and the coal powder in the flat nozzle coal pipe, ensure that the material is fully combusted in the subsequent decomposition furnace, and improve the burnout rate; the problems of the flat nozzle coal pipe being burned and deformed, the outlet of the flat nozzle coal pipe being seriously skinned, and local high temperature can be solved. BRIEF DESCRIPTION OF DRAWINGS

[0010] The utility model will be further described below in combination with the drawings and embodiments.

[0011] Fig. 1 It is the whole structure schematic diagram of the utility model.

[0012] Fig. 2 It is the structure schematic diagram of the flat nozzle coal pipe in the utility model. DETAILED DESCRIPTION

[0013] The utility model will be further described below in combination with the drawings and embodiments.

[0014] EMBODIMENT

[0015] As Figs. 1-2As shown, the utility model provides a kind of novel area burner scattering box, including air pipe 1, scattering box 2 and downcomer 3, the downside of air pipe 1 is air inlet, the upside of air pipe 1 is air outlet, the discharge port of scattering box 2 is fixedly connected with the side wall of air pipe 1, and the feed inlet of scattering box 2 is close to the air outlet of air pipe 1 to make scattering box 2 be arranged obliquely, the feed inlet of scattering box 2 is connected downcomer 3, scattering box 2 is equipped with scattering plate 4, one end of scattering plate 4 is fixedly connected with the side wall of scattering box 2 close to the air inlet side of air pipe 1, the other end extends to the downside of the side opening of air pipe 1, and is fixedly connected with air pipe 1, scattering plate 4 and downcomer 3 are equipped with flat mouth coal pipe 5 passing through scattering box 2, and flat mouth coal pipe 5 and scattering plate 4 are arranged obliquely.

[0016] As further measures of the utility model, flat mouth coal pipe 5 includes circular channel 6 and flat mouth channel 7, flat mouth channel 7 is isosceles trapezoidal, and the narrow end of flat mouth channel 7 is matched with one end of circular channel 6 and is fixedly connected, one side of flat mouth channel 7 of flat mouth coal pipe 7 penetrates into scattering box 2, and pulverized coal is added into scattering box 2 by flat mouth coal pipe 5, is evenly dispersed on scattering plate 4 by flat mouth channel 7, is mixed evenly with the material flowed out of downcomer 3, avoids that pulverized coal is mixed in material in group, can realize that pulverized coal is fully combusted in decomposition furnace, can effectively avoid local high temperature, improves the burnout rate of pulverized coal;Flat mouth channel 7 is equipped with several baffles 8, both ends of baffle 8 are correspondingly connected with the midpoint of wide end and narrow end of flat mouth channel 7, baffle 8 divides flat mouth channel 7 into two intervals, and the material entering flat mouth channel 7 is dispersed in flat mouth channel 7 due to its weight, flows into different intervals, is further drained with baffle 8, so that pulverized coal is more evenly distributed, for pulverized coal to be further evenly dispersed with the material of downcomer 3;Air pipe 1, scattering box 2, flat mouth coal pipe 5 and scattering plate 4 are made of fireproof heat-resistant material, the temperature is higher when decomposition furnace works, and the material used for air pipe 1 connected with decomposition furnace, scattering box 2 close to decomposition furnace, flat mouth coal pipe 5 and scattering plate 4 needs to be fireproof and high-temperature resistant.

[0017] The working principle of the utility model is that the device inserts flat mouth coal pipe 5 and scattering plate 4 into scattering box 2 at a certain angle, so that the pulverized coal sprayed by flat mouth coal pipe 5 and the material out of downcomer 3 form a certain angle, and the flat mouth design can make the pulverized coal be evenly dispersed horizontally and mixed with the material evenly, can realize that decomposition furnace flame is fully combusted, effectively avoids local high temperature, and improves the burnout rate of pulverized coal;In addition, after the material in scattering box 2 is skinned, the air pressure of air pipe 1 is also increased correspondingly, can blow the material gathered on scattering box 2, and further solve the problem of blockage.

[0018] The above has described the embodiment of the utility model, and the above description is exemplary, is not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A novel burner-equipped spreader box comprising a wind pipe, a spreader box and a downpipe, characterized in that: The lower side of the air duct is an air inlet, and the upper side of the air duct is an air outlet. The discharge port of the material scattering box is fixedly connected with the side wall of the air duct. The inlet port of the material scattering box is close to the air outlet of the air duct, so that the material scattering box is arranged in an inclined manner. The inlet port of the material scattering box is communicated with the discharging pipe. A material scattering plate is arranged in the material scattering box. One end of the material scattering plate is fixedly connected with the side wall of the material scattering box close to the air inlet of the air duct. The other end of the material scattering plate extends to the lower side of the side opening of the air duct and is fixedly connected with the air duct. A flat mouth coal pipe is arranged between the material scattering plate and the discharging pipe and passes through the material scattering box. The flat mouth coal pipe and the material scattering plate are both arranged in an inclined manner.

2. A novel burner-equipped spreader box according to claim 1, characterized in that: The flat mouth coal pipe comprises a circular channel and a flat mouth channel. The flat mouth channel is isosceles trapezoidal. The narrow end of the flat mouth channel is matched with and fixedly connected with one end of the circular channel. The flat mouth coal pipe penetrates into the material scattering box.

3. A novel burner-equipped spreader box according to claim 2, characterized in that: A plurality of baffles are arranged in the flat mouth channel. The two ends of the baffles are correspondingly connected with the wide end and the narrow end of the flat mouth channel. The baffles equally divide the flat mouth channel into a plurality of intervals.

4. A new type of spreader box with burner according to claim 1, characterized in that: The air duct, the material scattering box, the flat mouth coal pipe and the material scattering plate are all made of fireproof and heat-resistant materials.

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