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Solid-liquid mixed high-temperature solution waste heat recovery device and method

A high-temperature solution, solid-liquid mixing technology, applied in the direction of multi-effect evaporation, etc., can solve the problems of easy blockage of heating pipes, difficulty in recycling, waste heat of solid-liquid mixed high-temperature solution, etc., to achieve full use of waste heat, low operation and maintenance costs, The effect that the energy saving effect is remarkable

Active Publication Date: 2016-04-13
江苏高捷节能装备集团有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The content of xylan in corncobs is up to 35-40%. The xylan in corncobs can be extracted by cooking method, and the cooking liquid of corncobs after extracting xylan has higher temperature (165°C) and pressure (0.65MPA), which has high utilization value, but there is a certain amount of solid particles of corncobs in the corncob cooking liquid, so it is difficult to recycle them
There are many similar solid-liquid mixed high-temperature solutions. Due to the existence of solid particles in the solution, it is easy to block the heating pipe if it is directly used as a heat source. Therefore, it is necessary to propose a suitable method to solve the problem of waste heat recovery from solid-liquid mixed high-temperature solutions.

Method used

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  • Solid-liquid mixed high-temperature solution waste heat recovery device and method

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Embodiment 1

[0026] see figure 1 , the solid-liquid mixed high-temperature solution waste heat recovery and utilization device, including material inlet, primary flash system, secondary flash system, slag discharge tank, impurity pump and material outlet, wherein

[0027] The primary flash system includes a primary flash tank 1, a primary vapor-solid separator 2 and a primary discharge valve 3. The material inlet is set on the primary flash tank, and the top of the primary flash tank 1 is provided with a pipe and The upper part of the primary vapor-solid separator 2 is connected, the top of the primary vapor-solid separator 2 is provided with a primary gas delivery pipeline, and the bottom of the primary vapor-solid separator 2 is connected to the slag discharge tank 4 through a primary slag discharge pipeline, The conical head at the lower end of the primary steam-solid separator 2 is equipped with a spray device to prevent the separated solid particles from adhering to the inner wall of ...

Embodiment 2

[0034] The temperature is 160-170°C, the pressure is 0.6-0.7MPA, and the corncob cooking liquid with a flow rate of 28-30t / 45min enters the first-stage flash tank from the material inlet, and the first-stage flash evaporates the corncob cooking liquid from 165 degrees to flash Steam to 110 degrees, and generate 3-5 tons of 110 degrees steam per hour. The corn cob cooking liquid itself contains solid particles. During the flash evaporation process, particles will inevitably rise with the steam, and the steam containing solid impurities will enter the first-stage steam-solid separation In the device 2, after steam-solid separation, the steam is transported to the first-effect evaporator 13 through the first-stage gas delivery pipeline as the first-effect heating steam, and the solid is discharged from the first-stage slag discharge pipeline to the slag discharge tank 4 through the primary discharge valve 3 In the process, the 110-degree corn cob cooking liquid enters the secondar...

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Abstract

The invention discloses a solid-liquid mixed high-temperature solution waste heat recycling device, which comprises a material inlet, a first-stage flash system, a second-stage flash system, a slag discharge tank, an impurity pump and a material outlet, and the material inlet is set at the first-stage flash On the tank, the bottom of the primary vapor-solid separator is connected to the slagging tank through the primary slag discharge pipeline; the primary flash tank is connected to the secondary flash tank, and the secondary flash tank is connected to the secondary vapor-solid separator. The secondary vapor-solid separator is connected to the slag discharge tank through the secondary slag discharge pipeline. The bottom of the secondary flash tank is equipped with a pipeline connected to one end of the impurity pump, and the other end of the impurity pump is connected to the material outlet. The invention also provides a waste heat recycling method for solid-liquid mixed high-temperature solution. In the present invention, the heat of the corncob cooking liquid is effectively utilized in stages by means of two-stage flash evaporation, and the use efficiency of the steam is improved. efficient operation.

Description

technical field [0001] The invention relates to a solid-liquid mixed high-temperature solution waste heat recycling device and a waste heat recycling method thereof. Background technique [0002] The content of xylan in corncobs is up to 35-40%. The xylan in corncobs can be extracted by cooking method, and the cooking liquid of corncobs after extracting xylan has higher temperature (165°C) and pressure (0.65MPA), which has a high utilization value, but there is a certain amount of solid particles of corncobs in the corncob cooking liquid, which makes it difficult to recycle. There are many similar solid-liquid mixed high-temperature solutions. Due to the existence of solid particles in the solution, it is easy to block the heating pipe if it is directly used as a heat source. Therefore, it is necessary to propose a suitable method to solve the problem of waste heat recovery from solid-liquid mixed high-temperature solutions. Contents of the invention [0003] In order to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D1/26
CPCY02P70/10
Inventor 武师朋吴成刚姚岷民郭公新
Owner 江苏高捷节能装备集团有限公司