Thermal energy recycling process based on viscose staple fiber drying waste heat

Abstract

The invention discloses a thermal energy recycling process based on viscose staple fiber drying waste heat. According to the process, waste heat of a viscose staple fiber dryer is treated in a classified mode and recycled. The viscose staple fiber dryer comprises a fiber preheating unit, a high-temperature waste heat unit and a waste heat drying unit, wherein the fiber preheating unit, the high-temperature waste heat unit and the waste heat drying unit are connected in sequence. The treatment process comprises classified treatment and recycling treatment. The design is quite reasonable; the defects that by the adoption of an existing waste gas drying and thermal energy utilization technology, classifications are unclear, the layout is not diversified, and the utilization rate is low are overcome; since waste gases in all regions of the dryer are classified according to the characteristics of the waste gases and recycled, the practicability of the waste gas drying and thermal energy utilization technology is improved, the problems of large thermal energy loss, high steam consumption, high production cost and the like in the prior art are also solved, energy conservation and consumption reduction work of an enterprise is promoted, and high social value and economic benefits are obtained.

Description

technical field

[0001] The invention is based on a thermal energy reuse process of waste heat of viscose staple fiber drying, specifically relates to the reuse treatment of waste heat of a dryer in the production process of viscose staple fiber, and belongs to the technical field of energy saving and consumption reduction in viscose staple fiber production. Background technique

[0002] "Energy consumption" is an important index to evaluate the comprehensive competitiveness of an enterprise in today's era. Every enterprise regards "energy saving and consumption reduction" as the foundation of its own survival, and reduces costs bit by bit, and realizes energy saving with the best management and technology. benefit maximization. Take the drying process of viscose staple fiber production as an example. During the drying process, a large amount of waste heat from the dehumidification wind is discharged. If it is directly discharged or simply recovered, a large amount of heat en...

Examples

Embodiment 1

[0033] The present invention proposes a heat energy reuse process based on viscose staple fiber drying waste heat. In this embodiment, the heat energy reuse process is a process of classifying and reusing the waste heat of viscose staple fiber dryer. The heat energy and humidity contained in the waste heat of each unit of the staple fiber dryer are different. The viscose staple fiber dryer is divided into areas, which can be divided into fiber preheating units, high-temperature waste heat units and drying waste heat units connected in sequence. In actual operation, the following steps can be used for processing:

[0034] (1) Classification processing: According to the above-mentioned regional division results, the waste heat generated by each unit is collected separately, that is, fans are respectively installed on the air outlets of the high-temperature waste heat unit and the drying waste heat unit, and the high-temperature waste heat generated by the high-temperature waste h...

Embodiment 2

[0037] The difference between this embodiment and Embodiment 1 is that this embodiment is applicable to the viscose production industry with a production capacity of about 50,000 tons / year. In its production process, the viscose staple fiber dryer includes A, B, C Three drying areas, that is, the A area drying unit, the B area drying unit and the C area drying unit connected to the fiber preheating unit in sequence. In the actual production process, the A area drying unit and the B area drying unit The unit is a high-temperature waste heat unit, and the temperature of the high-temperature waste air generated is 85°C and the humidity is 98%. %.

[0038] In actual operation, the following steps can be used for processing:

[0039] (1) Classification treatment: Install fans on the air outlets of the drying units in A, B, and C respectively to collect the high-temperature residual air generated by the drying units in A and B respectively. And the drying residual air produced by ...

Embodiment 3

[0042] The difference between this embodiment and Embodiment 1 is that this embodiment is applicable to the viscose production industry with a production capacity of about 100,000 to 120,000 tons / year. Taking the production of viscose with a production capacity of 100,000 tons / year as an example, in its production process Among them, the viscose staple fiber dryer includes four drying areas A, B, C, and D, that is, it includes the A area drying unit, the B area drying unit, and the C area that are connected to the fiber preheating unit in sequence. Drying unit and D area drying unit. In the actual production process, the A area drying unit and the B area drying unit are high-temperature waste heat units, and the temperature of the high-temperature waste air generated is 95°C and the humidity is 99.9%; C The drying unit in the area and the drying unit in the D area are drying waste heat units. Among them, the temperature of the drying residual air generated by the drying unit in...

technical field

[0001] The invention is based on a thermal energy reuse process of waste heat of viscose staple fiber drying, specifically relates to the reuse treatment of waste heat of a dryer in the production process of viscose staple fiber, and belongs to the technical field of energy saving and consumption reduction in viscose staple fiber production. Background technique

[0002] "Energy consumption" is an important index to evaluate the comprehensive competitiveness of an enterprise in today's era. Every enterprise regards "energy saving and consumption reduction" as the foundation of its own survival, and reduces costs bit by bit, and realizes energy saving with the best management and technology. benefit maximization. Take the drying process of viscose staple fiber production as an example. During the drying process, a large amount of waste heat from the dehumidification wind is discharged. If it is directly discharged or simply recovered, a large amount of heat en...

Examples

Embodiment 1

[0033] The present invention proposes a heat energy reuse process based on viscose staple fiber drying waste heat. In this embodiment, the heat energy reuse process is a process of classifying and reusing the waste heat of viscose staple fiber dryer. The heat energy and humidity contained in the waste heat of each unit of the staple fiber dryer are different. The viscose staple fiber dryer is divided into areas, which can be divided into fiber preheating units, high-temperature waste heat units and drying waste heat units connected in sequence. In actual operation, the following steps can be used for processing:

[0034] (1) Classification processing: According to the above-mentioned regional division results, the waste heat generated by each unit is collected separately, that is, fans are respectively installed on the air outlets of the high-temperature waste heat unit and the drying waste heat unit, and the high-temperature waste heat generated by the high-temperature waste h...

Embodiment 2

[0037] The difference between this embodiment and Embodiment 1 is that this embodiment is applicable to the viscose production industry with a production capacity of about 50,000 tons / year. In its production process, the viscose staple fiber dryer includes A, B, C Three drying areas, that is, the A area drying unit, the B area drying unit and the C area drying unit connected to the fiber preheating unit in sequence. In the actual production process, the A area drying unit and the B area drying unit The unit is a high-temperature waste heat unit, and the temperature of the high-temperature waste air generated is 85°C and the humidity is 98%. %.

[0038] In actual operation, the following steps can be used for processing:

[0039] (1) Classification treatment: Install fans on the air outlets of the drying units in A, B, and C respectively to collect the high-temperature residual air generated by the drying units in A and B respectively. And the drying residual air produced by ...

Embodiment 3

[0042] The difference between this embodiment and Embodiment 1 is that this embodiment is applicable to the viscose production industry with a production capacity of about 100,000 to 120,000 tons / year. Taking the production of viscose with a production capacity of 100,000 tons / year as an example, in its production process Among them, the viscose staple fiber dryer includes four drying areas A, B, C, and D, that is, it includes the A area drying unit, the B area drying unit, and the C area that are connected to the fiber preheating unit in sequence. Drying unit and D area drying unit. In the actual production process, the A area drying unit and the B area drying unit are high-temperature waste heat units, and the temperature of the high-temperature waste air generated is 95°C and the humidity is 99.9%; C The drying unit in the area and the drying unit in the D area are drying waste heat units. Among them, the temperature of the drying residual air generated by the drying unit in...

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