CN212179528U - Hot air supply system using single hot-blast stove - Google Patents
Hot air supply system using single hot-blast stove Download PDFInfo
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- CN212179528U CN212179528U CN202020257353.0U CN202020257353U CN212179528U CN 212179528 U CN212179528 U CN 212179528U CN 202020257353 U CN202020257353 U CN 202020257353U CN 212179528 U CN212179528 U CN 212179528U
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Abstract
The utility model belongs to the technical field of chemical fertilizer production facility, especially, utilize hot-blast furnace's hot-blast system that supplies heat. The utility model discloses this system includes the heating device and the adjusting device of the control amount of wind that provide hot-blast to one-level drying-machine and second grade drying-machine, heating device's air outlet pass through the pipeline respectively with the air intake of one-level drying-machine and the air intake connection of second grade drying-machine, all install the valve of the control amount of wind on the pipeline, adjusting device is connected with the air outlet of one-level drying-machine and the air outlet of second grade drying-machine respectively. The utility model discloses a use through an air-blower, a hot-blast furnace and two draught fans cooperations, and two draught fans all adopt the frequency conversion fan to carry out the allotment of amount of wind, combine the valve on the pipeline effectively to adjust the business turn over air output of drying-machine, replaced a traditional drying-machine and needed one set of hot-blast apparatus heat supply's system, realized that a hot-blast furnace just can satisfy the stoving demand of two-stage drying-machine, effectively practiced thrift the cost of enterprises.
Description
Technical Field
The utility model belongs to chemical fertilizer production facility field especially relates to an utilize hot-blast furnace's hot air supply system.
Background
The supply side reformation process of the fertilizer industry is accompanied with the increasing development of environmental governance, and the fertilizer industry is undergoing remarkable changes under the environmental protection pressure. The fertilizer industry belongs to the industries with high energy consumption and high pollution, and puts higher requirements on enterprises for changing coal into gas or treating dust and noise.
Most rotary drum compound fertilizer devices are provided with two stages of drying systems due to the process, two sets of hot blast stove drying systems are required to be equipped, and the heat source of the traditional hot blast stove drying system is coal, so that the current energy-saving and environment-friendly requirements are not met. The natural gas is used as clean energy, no pollutant exists after combustion, and the natural gas hot blast stove is simple to operate. However, the cost of a single set of natural gas hot blast stove is high, which is a great burden for the small-sized compound fertilizer enterprises which are not in the same scene.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides a hot air supply system using a single hot-blast stove. The utility model discloses can satisfy the two-stage stoving demand of environmental protection requirement and fertilizer.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an utilize hot-blast furnace's hot-blast system that supplies heat, this system includes the heating device and the adjusting device of the control amount of wind that provide hot-blast to one-level drying-machine and second grade drying-machine, heating device's air outlet pass through the pipeline respectively with the air intake of one-level drying-machine and the air intake connection of second grade drying-machine, all install the valve of the control amount of wind on the pipeline, adjusting device links with the air outlet of one-level drying-machine and the air outlet of second grade drying-machine respectively.
Preferably, the heating device is a hot blast stove, and the heat source of the hot blast stove is natural gas; the hot blast stove is respectively connected with the primary dryer and the secondary dryer through two pipelines.
Preferably, the adjusting device comprises a primary air inducing unit and a secondary air inducing unit, the primary air inducing unit is connected with the primary dryer, and the secondary air inducing unit is connected with the secondary dryer.
Preferably, the primary air inducing unit and the secondary air inducing unit are both variable frequency fans.
Preferably, the air inlet of the heating device is connected with the air blower; the induced air quantity of the primary induced air unit is larger than the air quantity of the air blower, and the induced air quantity of the secondary induced air unit is smaller than the air quantity of the air blower.
The utility model has the advantages that:
1. the utility model discloses a use through an air-blower, a hot-blast furnace and two draught fans cooperations, and two draught fans all adopt the frequency conversion fan to carry out the allotment of amount of wind, combine the valve on the pipeline effectively to adjust the business turn over air output of drying-machine, replaced a traditional drying-machine and needed one set of hot-blast apparatus heat supply's system, realized that a hot-blast furnace just can satisfy the stoving demand of two-stage drying-machine, effectively practiced thrift the cost of enterprises.
2. The heat source adopted by the hot blast stove is natural gas, replaces the heat supply of the traditional coal-fired hot blast stove, can effectively reduce pollution and protect the environment.
Drawings
FIG. 1 is a process flow diagram of the present invention.
The notations in the figures have the following meanings:
1-first-stage dryer, 2-second-stage dryer, 3-heating device, 41-first-stage induced draft unit, 42-second-stage induced draft unit, 5-valve and 6-blower.
Detailed Description
As shown in fig. 1, a hot air supply system using a single hot-blast stove comprises a heating device 3 for supplying hot air to a primary dryer 1 and a secondary dryer 2 and an adjusting device for controlling air quantity, wherein an air outlet of the heating device 3 is respectively connected with an air inlet of the primary dryer 1 and an air inlet of the secondary dryer 2 through pipelines, valves 5 for controlling air quantity are respectively arranged on the pipelines, and the adjusting device is respectively connected with an air outlet of the primary dryer 1 and an air outlet of the secondary dryer 2.
The heating device 3 is a hot blast stove, and the heat source of the hot blast stove is natural gas; the hot blast stove is respectively connected with the primary dryer 1 and the secondary dryer 2 through two pipelines.
The adjusting device comprises a primary air inducing unit 41 and a secondary air inducing unit 42, wherein the primary air inducing unit 41 is connected with the primary dryer 1, and the secondary air inducing unit 42 is connected with the secondary dryer 2.
The air induction volume of the primary air induction unit 41 is 129668m3The air induction quantity of the secondary air induction unit 42 is 31197-38997m3H; the primary air inducing unit 41 and the secondary air inducing unit 42 are both variable frequency fans.
The air inlet of the heating device 3 is connected with the blower 6; the air volume of the blower 6 is 53978-3The wind pressure is 2172 and 2746 Pa.
The maximum heat supply of the heating device 3 is 3600000Kcal/h, the heat efficiency is 90%, the working temperature is 800 ℃, and the pressure is 1000 Pa.
The operation of the device is described in detail below with reference to the drawings in the examples.
Cold air is sent into a natural gas hot air furnace for heating through a blower 6, the air is heated to 120 ℃ and 300 ℃, a valve 5 is adjusted, and the heated hot air is respectively sent into a primary dryer 1 and a secondary dryer 2; the tail gas of the primary dryer 1 is extracted by the primary induced draft unit 41, the tail gas of the secondary dryer 2 is extracted by the secondary induced draft unit 42, the primary dryer 1 is a main drying stage, and the secondary dryer 2 is an auxiliary drying stage.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (5)
1. The utility model provides an utilize hot-blast furnace's hot-blast system that supplies, its characterized in that: the system comprises a heating device (3) for providing hot air for the primary dryer (1) and the secondary dryer (2) and an adjusting device for controlling air quantity, wherein an air outlet of the heating device (3) is respectively connected with an air inlet of the primary dryer (1) and an air inlet of the secondary dryer (2) through a pipeline, valves (5) for controlling the air quantity are all installed on the pipeline, and the adjusting device is respectively connected with an air outlet of the primary dryer (1) and an air outlet of the secondary dryer (2).
2. The hot air supply system using a single hot blast stove according to claim 1, wherein: the heating device (3) is a hot blast stove, and the heat source of the hot blast stove is natural gas; the hot blast stove is respectively connected with the primary dryer (1) and the secondary dryer (2) through two pipelines.
3. The hot air supply system using a single hot blast stove according to claim 1, wherein: the adjusting device comprises a primary air inducing unit (41) and a secondary air inducing unit (42), the primary air inducing unit (41) is connected with the primary dryer (1), and the secondary air inducing unit (42) is connected with the secondary dryer (2).
4. The hot air supply system using a single hot blast stove according to claim 3, wherein: the primary air inducing unit (41) and the secondary air inducing unit (42) are both variable frequency fans.
5. The hot air supply system using a single hot blast stove according to claim 3, wherein: the air inlet of the heating device (3) is connected with the blower (6); the induced air quantity of the primary induced air unit (41) is larger than the air quantity of the blower (6), and the induced air quantity of the secondary induced air unit (42) is smaller than the air quantity of the blower (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020257353.0U CN212179528U (en) | 2020-03-04 | 2020-03-04 | Hot air supply system using single hot-blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020257353.0U CN212179528U (en) | 2020-03-04 | 2020-03-04 | Hot air supply system using single hot-blast stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212179528U true CN212179528U (en) | 2020-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020257353.0U Active CN212179528U (en) | 2020-03-04 | 2020-03-04 | Hot air supply system using single hot-blast stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212179528U (en) |
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2020
- 2020-03-04 CN CN202020257353.0U patent/CN212179528U/en active Active
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