CN211552390U

CN211552390U - Split type hood

Info

Publication number: CN211552390U
Application number: CN201922063295.8U
Authority: CN
Inventors: 付忠平; 江军; 李欢; 朱亚松; 武小林; 杜小亮; 董百林; 胡康宁; 于龙
Original assignee: Xinjiang Zhongtai Chemical Tuokexun Energy Chemical Co ltd; Xinjiang Zhongtai Chemical Co Ltd
Current assignee: Xinjiang Zhongtai Chemical Tuokexun Energy Chemical Co ltd; Xinjiang Zhongtai Chemical Co Ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-09-22
Anticipated expiration: 2029-11-26

Abstract

The utility model relates to a hood technical field is a split type hood, and it includes the hood body and the hood body down, is equipped with opening upper air-out passageway down in the hood body, is equipped with opening lower air-out passageway up in the hood body down, is equipped with on the hood body and goes up two communicating at least radial exhaust vents of air-out passageway, and the lower extreme of the hood body and the upper end of the hood body down are passed through screw thread fixed mounting and are in the same place. The utility model discloses rational in infrastructure, during the use, the oxidation that the upper wind cap body suffered corrodes great, consequently, use after a period change the upper wind cap body can, need not change the lower wind cap body, like this, just need not destroy the fluidized bed furnace, improved the life of fluidized bed furnace, reduced because of the high-alumina brick collapses injures personnel's risk by a crashing object. By arranging the rubber wind-blocking cover, the reverse wind can be effectively prevented. And the rubber wind-proof cover is convenient for collecting materials, can utilize wastes and is convenient for replacement.

Description

Split type hood

Technical Field

The utility model relates to a hood technical field is a split type hood.

Background

The service life of the blast cap used in the fluidized bed furnace of the drying kiln is generally 5 months, 10 hours (36 hours for blowing out) is needed for replacing the blast cap once, the labor intensity is high, the operation risk of entering a hearth is high (due to high internal temperature, personnel are easy to scald, and when the blast cap is replaced, a hammer and an electric hammer are needed to remove the refractory castable for fixing the blast cap, so that the peripheral walls and the arch top high-alumina bricks of the fluidized bed furnace vibrate greatly, the risk of collapse and injury of the personnel due to the collapse of the high-alumina bricks is caused, equipment damage accidents are easy to cause, frequent blowing out is needed for replacing the blast cap, the high-alumina bricks are loosened and deformed due to the principle of thermal expansion and cold contraction, the service life of the fluidized bed furnace is shortened, in addition, once unstable airflow forms pouring outside the fluidized bed furnace of the drying.

Disclosure of Invention

The utility model provides a split type hood has overcome above-mentioned prior art not enough, and it can effectively be solved and frequently change the hood and need frequent blowing out, reduce fluidized bed furnace life, have the potential safety hazard and be unfavorable for the problem that the hood was aired exhaust.

The technical scheme of the utility model is realized through following measure: a split type hood comprises an upper hood body and a lower hood body, wherein an upper air outlet channel with a downward opening is arranged in the upper hood body, a lower air outlet channel with an upward opening is arranged in the lower hood body, at least two radial air outlet holes communicated with the upper air outlet channel are formed in the upper hood body, and the lower end of the upper hood body and the upper end of the lower hood body are fixedly installed together through threads.

The following are further optimization or/and improvement of the technical scheme of the utility model:

the outer side of the upper hood body above the radial air outlet hole is sleeved with a rubber wind blocking cover.

The lower wind cap body is provided with at least two radial air outlet holes communicated with the lower air outlet channel, and the outer side of the lower wind cap body above the radial air outlet holes is sleeved with a rubber wind blocking cover.

And a high-temperature-resistant anticorrosive layer is arranged in the lower air outlet channel.

The upper part of the upper air outlet channel is conical.

The lower end of the upper wind cap body is integrally provided with an upper thread mounting head with the outer diameter smaller than that of the upper wind cap body, the inner side of the upper end of the lower wind cap body is provided with a thread concave table with the inner diameter larger than that of the lower air outlet channel, and the upper thread mounting head is fixedly mounted in the thread concave table through threads.

The upper wind cap body is a stainless steel upper wind cap body, and the lower wind cap body is a stainless steel lower wind cap body.

The utility model discloses rational in infrastructure, during the use, the oxidation that the upper wind cap body suffered corrodes great, consequently, use after a period change the upper wind cap body can, need not change the lower wind cap body, like this, just need not destroy the fluidized bed furnace, improved the life of fluidized bed furnace, reduced because of the high-alumina brick collapses injures personnel's risk by a crashing object. By arranging the rubber wind-blocking cover, the reverse wind can be effectively prevented. And the rubber wind-proof cover is convenient for collecting materials, can utilize wastes and is convenient for replacement.

Drawings

Fig. 1 is a schematic sectional view of the upper wind cap body of the present invention.

Fig. 2 is a schematic sectional view of the middle-lower wind cap body according to the present invention.

The codes in the figures are respectively: the wind cap comprises an upper wind cap body 1, a lower wind cap body 2, an upper wind outlet channel 3, a lower wind outlet channel 4, radial wind outlet holes 5, a rubber wind shield 6, a high-temperature-resistant anticorrosive layer 7, an upper thread mounting head 8 and a thread concave platform 9.

Detailed Description

The utility model discloses do not receive the restriction of following embodiment, can be according to the utility model discloses a technical scheme and actual conditions determine concrete implementation.

In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout mode of the attached drawing 1 in the specification, such as: the positional relationship of the upper, lower, etc. is determined in accordance with the layout direction of fig. 1 of the specification.

The technical scheme of the utility model is realized through following measure:

the invention will be further described with reference to the following examples and drawings:

as shown in the attached drawings 1 and 2, the split type hood comprises an upper hood body 1 and a lower hood body 2, an upper air outlet channel 3 with a downward opening is arranged in the upper hood body 1, a lower air outlet channel 4 with an upward opening is arranged in the lower hood body 2, at least two radial air outlet holes 5 communicated with the upper air outlet channel 3 are arranged on the upper hood body 1, and the lower end of the upper hood body 1 and the upper end of the lower hood body 2 are fixedly installed together through threads. When the upper hood body 1 is used, the oxidation corrosion of the upper hood body 1 is large, so that the upper hood body 1 can be replaced after the upper hood body is used for a period of time, and the lower hood body 2 does not need to be replaced, so that the fluidized bed furnace does not need to be damaged, the service life of the fluidized bed furnace is prolonged, and the risk of injury to personnel due to collapse of high-alumina bricks is reduced.

The split type hood can be further optimized or/and improved according to actual needs:

as shown in the attached figure 1, a rubber wind screen 6 is sleeved on the outer side of the upper wind cap body 1 above the radial wind outlet 5. By arranging the rubber wind-blocking cover 6, the backward flow of wind can be effectively prevented. And the rubber wind-proof cover 6 is convenient for collecting materials, can utilize wastes and is convenient for replacement.

As shown in the attached figure 2, at least two radial air outlet holes 5 communicated with the lower air outlet channel 4 are arranged on the lower hood body 2, and a rubber wind blocking cover 6 is sleeved on the outer side of the lower hood body 2 above the radial air outlet holes 5. By arranging the rubber wind-blocking cover 6, the backward flow of wind can be effectively prevented.

As shown in fig. 2, a high temperature resistant anticorrosive layer 7 is arranged in the lower air outlet channel 4. Therefore, the service life of the down-draft cap body 2 can be prolonged, the frequency of replacing the down-draft cap body 2 is further reduced, and the service life of the fluidized bed furnace is also prolonged. The high-temperature resistant anticorrosive coating 7 can adopt the existing high-temperature resistant anticorrosive coating paint.

As shown in fig. 1, the upper portion of the upper outlet channel 3 is tapered. Therefore, the top of the upper wind cap body 1 is relatively thick and heavy, the corrosivity is reduced, and the service life of the upper wind cap body 1 is prolonged.

As shown in fig. 1 and 2, an upper thread mounting head 8 with an outer diameter smaller than that of the upper hood body 1 is integrally arranged at the lower end of the upper hood body 1, a thread concave table 9 with an inner diameter larger than that of the lower air outlet channel 4 is arranged at the inner side of the upper end of the lower hood body 2, and the upper thread mounting head 8 is fixedly mounted in the thread concave table 9 through threads. Thus, the installation and the disassembly are convenient, the diameters of the upper air outlet channel 3 and the lower air outlet channel 4 are kept consistent, and the air is conveniently exhausted.

According to the requirements, the upper hood body 1 is a stainless steel upper hood body, and the lower hood body 2 is a stainless steel lower hood body.

In the in-service use process, through the test, a batch is changed every 5 months to bayonet cast steel hood, and the stainless steel hood has not been damaged on probation for 30 months, need to stop the stove for 36 hours when the cast steel hood is changed at every turn, changes at every turn and need fall to within 40 degrees to furnace cooling from 800 degrees, and the difference in temperature is great, easily causes the boiling furnace to be able to bear or endure firebrick not hard up, changes the utility model discloses only need 8 hours, can practice thrift 28 hours than bayonet cast steel hood, every stove increases the benefit of 28 hours carbon material stoving volume promptly, and the on-the-spot 9 stoving output benefits of boiling furnace multiplicable 252 hours. Increase the yield benefit of the dried carbon material: (single saving of hour 28 × 5 three-cylinder kiln 15 ton/hour dry mass =2100 ton) + (single saving of hour 28 × 2 vertical kiln 20 ton/hour dry mass =1120 ton) + (single saving of hour 28 × 2 single-cylinder kiln 10 ton/hour dry mass =560 ton) =3780 ton.

The unit price of the plug-in cast steel blast cap is 45 yuan, and the replacement is carried out once in 5 months on average, the utility model discloses (stainless steel formula) total price is 115 yuan, upper portion unit price is 60 yuan, lower part unit price is 55 yuan, and the blast cap is counted altogether to 9 on-the-spot fluidized bed furnaces 4708. Change a batch the utility model discloses at least directly practice thrift: 4708 × 115-4708 × 45 × 6=729740 yuan. (the utility model is used for 30 months without damage after trial).

Above technical feature constitutes the utility model discloses a best embodiment, it has stronger adaptability and best implementation effect, can increase and decrease unnecessary technical feature according to actual need, satisfies the demand of different situation.

Claims

1. A split type hood is characterized by comprising an upper hood body and a lower hood body, wherein an upper air outlet channel with a downward opening is arranged in the upper hood body, a lower air outlet channel with an upward opening is arranged in the lower hood body, at least two radial air outlet holes communicated with the upper air outlet channel are formed in the upper hood body, and the lower end of the upper hood body and the upper end of the lower hood body are fixedly installed together through threads.

2. The split blast cap according to claim 1, wherein a rubber wind blocking cover is sleeved on the outer side of the upper blast cap body above the radial air outlet.

3. The split type hood according to claim 2, wherein the lower hood body is provided with at least two radial air outlets communicated with the lower air outlet channel, and a rubber wind blocking cover is sleeved outside the lower hood body above the radial air outlets.

4. The split blast cap according to claim 1, 2 or 3, wherein a high temperature resistant anticorrosive coating is provided in the lower air outlet channel.

5. The split blast cap according to claim 1, 2 or 3, wherein the upper portion of the upper outlet air passage is tapered.

6. The split blast cap according to claim 4, wherein the upper portion of the upper outlet channel is tapered.

7. The split blast cap according to claim 1, 2, 3 or 6, wherein the lower end of the upper blast cap body is integrally provided with an upper thread mounting head having an outer diameter smaller than that of the upper blast cap body, the inner side of the upper end of the lower blast cap body is provided with a thread recess having an inner diameter larger than that of the lower air outlet channel, and the upper thread mounting head is fixedly mounted in the thread recess through a thread.

8. The split blast cap according to claim 4, wherein the lower end of the upper blast cap body is integrally provided with an upper thread mounting head having an outer diameter smaller than that of the upper blast cap body, the inner side of the upper end of the lower blast cap body is provided with a thread recess having an inner diameter larger than that of the lower outlet passage, and the upper thread mounting head is fixedly mounted in the thread recess by a thread.

9. The split blast cap according to claim 5, wherein the lower end of the upper blast cap body is integrally provided with an upper thread mounting head having an outer diameter smaller than that of the upper blast cap body, the inner side of the upper end of the lower blast cap body is provided with a thread recess having an inner diameter larger than that of the lower outlet passage, and the upper thread mounting head is fixedly mounted in the thread recess by a thread.

10. The split blast cap according to claim 1, 2, 3, 6, 8 or 9, wherein the upper blast cap body is a stainless steel upper blast cap body, and the lower blast cap body is a stainless steel lower blast cap body.