CN212058342U - High-temperature solid material waste heat recovery system - Google Patents
High-temperature solid material waste heat recovery system Download PDFInfo
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- CN212058342U CN212058342U CN202020560505.4U CN202020560505U CN212058342U CN 212058342 U CN212058342 U CN 212058342U CN 202020560505 U CN202020560505 U CN 202020560505U CN 212058342 U CN212058342 U CN 212058342U
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Abstract
The utility model relates to a high temperature solid material waste heat recovery system has solved the simple extensive of current high temperature solid material waste heat utilization mode, and waste heat recovery system heat exchange efficiency is low, and area is big, and the technique is immature, is difficult to the problem that the scale was used. The technical scheme includes that the device comprises a shell, wherein the lower section of the shell is provided with an air box, the middle section of the shell is provided with a fluidized heat exchange chamber, the upper section of the shell is provided with a filter, and the top of the shell is provided with an air purifying chamber; the fluidization heat exchange chamber is characterized in that a fluidization plate is arranged between the air box and the fluidization heat exchange chamber, the outlet of the filter is connected with an air purifying chamber, the gas outlet of the air purifying chamber is connected with the gas inlet of the air box through a fan, the upper section of the fluidization heat exchange chamber is provided with a material inlet, and the bottom of the fluidization heat exchange chamber is provided with a material outlet. The utility model discloses heat exchange efficiency is high, sealed effectual, system temperature application scope is wide, high temperature resistant ability is strong, simple structure is compact, friendly to the environment, but the scale is used.
Description
Technical Field
The utility model relates to a waste heat recovery field, specific high temperature solid material waste heat recovery system that says so.
Background
In the industries of steel, metallurgy, coking, chemical industry and the like, a large amount of high-temperature solid materials such as steel slag, slag and the like can be produced in the daily industrial production process. The temperature of the high-temperature solid materials is usually between 300 ℃ and 800 ℃, and the temperature of some high-temperature solid materials can even reach about 1000 ℃. In order to facilitate the transportation and subsequent treatment of the solid material, the high-temperature solid material needs to be cooled to normal temperature. This process usually consumes a large amount of cooling water, wasting valuable water resources and a large amount of waste heat of the high-temperature solid materials.
The utilization of waste heat of high-temperature solid materials is always a difficult problem in the world, which troubles the energy-saving effect of a plurality of industries, and at present, no mature technology for large-scale application exists in China. In the past, the utilization of the waste heat of high-temperature solid materials in various related fields is basically realized in the real situation of complete non-utilization or small-scale simple extensive utilization. Under the situation that the requirements of the national energy saving and consumption reduction policy are gradually tightened, the technical requirements of enterprises on waste heat utilization of high-temperature solid materials are more and more urgent. A large amount of waste heat in the high-temperature solid material is expected to be fully utilized, on one hand, the energy can be greatly saved for enterprises, and on the other hand, the income of the enterprises is increased by generating byproducts such as high-temperature high-pressure steam and the like.
Disclosure of Invention
The utility model aims at solving the technical problem, provide a waste heat recovery system that heat exchange efficiency is high, sealed effectual, system temperature application scope is wide, high temperature resistant ability is strong, simple structure is compact, friendly to the environment, can the scale be used.
The technical scheme includes that the device comprises a shell, wherein the lower section of the shell is provided with an air box, the middle section of the shell is provided with a fluidized heat exchange chamber, the upper section of the shell is provided with a filter, and the top of the shell is provided with an air purifying chamber; the air box and the fluidization heat exchange chamber are separated by a fluidization plate, the outlet of the filter is connected with an air purifying chamber, the gas outlet of the air purifying chamber is connected with the gas inlet of the air box through a fan, the upper section of the fluidization heat exchange chamber is provided with a material inlet, and the bottom of the fluidization heat exchange chamber is provided with a material outlet.
The fluidization plate is an inclined pore plate, and the material outlet is positioned at the lowest position of the bottom of the fluidization heat exchange chamber.
And a steam heat exchanger is arranged at the outlet of the air purifying chamber.
The outlet of the fan is also connected with a back flushing port of the filter through a back flushing header.
And the outlet of the fan is respectively connected with the material inlet of the fluidization heat exchange chamber and the sealing air system at the material outlet.
The filter is a silicon carbide ceramic filter; the fluidization plate is a silicon carbide fluidization plate.
Has the advantages that:
the utility model discloses integrated as an organic whole with bellows, fluidization heat transfer room, filter and air-purifying chamber, fully fluidize the high temperature material to the air is circulating medium, retrieves heat energy after solid-gas-water abundant heat transfer, and fluidization heat transfer mode heat transfer coefficient is high, the recovery process is simple, and the system is totally enclosed, does not have waste gas and the solid emission of useless, and is friendly to the environment. The system has the advantages of simple and compact structure, small occupied area, high heat exchange efficiency, wide application range of system temperature, strong high temperature resistance, low investment and operation cost, large-scale application and wide market application prospect, and the upper limit of the temperature of the treatable material can reach 1000 ℃.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Wherein, the device comprises 1-air box, 2-fluidization plate, 3-fluidization heat exchange chamber, 3.1-material inlet, 3.2-material outlet, 4-filter, 5-air purifying chamber, 6-back blowing header, 7-steam heat exchanger, 8-steam, 9-water, 10-low speed circulating fan and 11-shell.
Detailed Description
The invention will be further explained with reference to the drawings:
referring to fig. 1, the lower section of the shell 11 is a wind box, the middle section is a fluidization heat exchange chamber 3, the upper section is a filter 4, and the top is a gas purification chamber 5; the air box 1 and the fluidization heat exchange chamber 3 are separated by a fluidization plate 2, the fluidization plate 2 is an inclined pore plate, a material inlet 3.1 is arranged at the upper section of the fluidization heat exchange chamber 3, a material outlet 3.2 is arranged at the lowest position of the bottom of the fluidization heat exchange chamber 3, an outlet of the filter 4 is connected with an air purifying chamber 5, a steam heat exchanger 7 is arranged at an outlet of the air purifying chamber 5, a gas outlet of the air purifying chamber 5 is connected with a gas inlet at the bottom of the air box 1 through a low-speed circulating fan 10, and an outlet of the low-speed circulating fan 10 is connected with a back flushing port of the filter 4 through a back flushing collection box 6; the outlet of the low-speed circulating fan 10 is connected with a sealing air system (of the prior structure and not shown in the figure) at the material inlet 3.1 and the material outlet 3.2 of the fluidization heat exchange chamber 3 respectively.
The filter 4 is a silicon carbide ceramic filter; the fluidization plate 2 is a silicon carbide fluidization plate.
The solid material process flow is as follows:
after being discharged from the upper-level process device, high-temperature solid materials (below 1000 ℃) are conveyed to a material inlet 3.1 of the fluidization heat exchange chamber 3 in a pneumatic conveying or auger conveying mode and are always in a fluidization suspension state under the disturbance effect generated by continuous circulating air, the high-temperature solid materials and the circulating air complete the heat exchange process of solid-gas heat exchange, the solid materials enter and exit the system in a continuous process, and as the fluidization plate 2 is in an inclined state, the low-temperature solid materials (below 100 ℃) subjected to heat exchange gradually fall into the lowest part of the fluidization heat exchange chamber 3 along with the gravity and are discharged from a material outlet 3.2 to enter a subsequent disposal link along with the continuous entering of new high-temperature solid materials.
In order to ensure the tightness of the material inlet and the material outlet, a sealing air system is arranged at the material inlet 3.1 and the material outlet 3.2. The sealing air source adopts clean circulating air and is directly led out from the outlet of the low-speed circulating fan 10, and the sealing air is used as a part of the circulating air and is always sealed in the circulating system.
The process flow of circulating air is as follows:
the circulating air enters the wind box 1 after being pressurized by the low-speed circulating fan 10, and enters the fluidized heat exchange chamber 3 after passing through the fluidization plate 2 which is arranged in an inclined way. In the fluidization heat exchange chamber 3, the circulating air continuously generates disturbance effect, the heat exchange process of solid-gas heat exchange with high-temperature solid materials is completed in a low-speed fluidization state, and the recovery process of the waste heat of the high-temperature solid materials is realized. The heated circulating air is filtered and ash-removed by a filter 4 and then enters an air purifying chamber 5 at the upper part, an indirect heat exchange process is carried out between the air purifying chamber 5 and a steam heat exchanger 7, and high-temperature and high-pressure steam generated by the steam heat exchanger is directly supplied for external use. The circulating air after heat exchange with the steam heat exchanger 7 is led back to the inlet of the low-speed circulating fan 10 through the gas outlet of the air purifying chamber 5 through a pipeline, and the next recycling process is continued.
The filter 4 is cleaned by back blowing regularly, and the circulating air of the low-speed circulating fan 10 is sent into the back blowing port of the filter 4 through the back blowing header 6 for back blowing.
Claims (6)
1. A high-temperature solid material waste heat recovery system comprises a shell, and is characterized in that the lower section of the shell is provided with a wind box, the middle section of the shell is provided with a fluidized heat exchange chamber, the upper section of the shell is provided with a filter, and the top of the shell is provided with a gas purifying chamber; the air box and the fluidization heat exchange chamber are separated by a fluidization plate, the outlet of the filter is connected with an air purifying chamber, the gas outlet of the air purifying chamber is connected with the gas inlet of the air box through a fan, the upper section of the fluidization heat exchange chamber is provided with a material inlet, and the bottom of the fluidization heat exchange chamber is provided with a material outlet.
2. The high temperature solid material waste heat recovery system of claim 1, wherein the fluidization plate is an inclined orifice plate, and the material outlet is located at the lowest position of the bottom of the fluidization heat exchange chamber.
3. The high-temperature solid material waste heat recovery system of claim 1, wherein a steam heat exchanger is arranged at an outlet of the air purifying chamber.
4. The system for recovering the waste heat of the high-temperature solid materials as claimed in claim 1, wherein the outlet of the blower is also connected with the back blowing port of the filter through a back blowing header.
5. The system for recovering the waste heat of the high-temperature solid materials as claimed in any one of claims 1 to 4, wherein the outlet of the fan is respectively connected with the sealing air system at the material inlet and the material outlet of the fluidized heat exchange chamber.
6. The high temperature solid material waste heat recovery system of claim 1, wherein the filter is a silicon carbide ceramic filter; the fluidization plate is a silicon carbide fluidization plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020560505.4U CN212058342U (en) | 2020-04-15 | 2020-04-15 | High-temperature solid material waste heat recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020560505.4U CN212058342U (en) | 2020-04-15 | 2020-04-15 | High-temperature solid material waste heat recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212058342U true CN212058342U (en) | 2020-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020560505.4U Active CN212058342U (en) | 2020-04-15 | 2020-04-15 | High-temperature solid material waste heat recovery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212058342U (en) |
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2020
- 2020-04-15 CN CN202020560505.4U patent/CN212058342U/en active Active
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