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Biomass quality-based utilization system and method based on hydrothermal technology

A biomass and hydrothermal technology, applied in chemical instruments and methods, water pollutants, biological sludge treatment, etc., can solve the problems of insufficient subdivision, insufficient sludge treatment, and inefficient resource utilization of products , to achieve excellent dehydration performance, improve the efficiency of resource utilization of products, and improve the value of resource utilization

Inactive Publication Date: 2020-07-17
四川深蓝环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to address the above problems, to provide a biomass fractionation and utilization system and method based on hydrothermal technology, which not only solves the problem that the sludge treatment in the original prior art is not thorough enough, the subdivision is not detailed enough, and the product cannot be efficiently obtained. The problem of resource utilization

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  • Biomass quality-based utilization system and method based on hydrothermal technology
  • Biomass quality-based utilization system and method based on hydrothermal technology

Examples

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Effect test

Embodiment 1

[0037] like figure 1 As shown, a biomass fractionation and utilization system based on hydrothermal technology includes a pretreatment tank, a hydrothermal reactor 2, a flash reactor 3, a hydrothermal sludge buffer tank 4, a biogas boiler 5, and a filtrate buffer tank 6 and a multistage cyclone separation system 7; the pretreatment tank described in this system can be a slurry reactor 1; the slurry reactor 1 is connected with the hydrothermal reactor 2 through a hydrothermal feed pump, and the hydrothermal The reactor 2 is connected to the flash reactor 3 through a pipeline, the steam outlet of the flash reactor 3 is connected to the slurry reactor 1, and the flash reactor 3 is connected to the hydrothermal sludge buffer tank 4 through a pipeline The steam outlet end of the biogas boiler 5 is connected with the hydrothermal reaction; the hydrothermal sludge buffer tank 4 is connected with the multi-stage cyclone separation system 7 through a primary separation pump; the filtra...

Embodiment 2

[0054] like figure 2 Described, embodiment 2 is similar to embodiment 1, and its difference is, described organic sludge buffer tank 8 rear end is provided with organic sludge dehydrator 93, organic filtrate buffer tank 947 and anaerobic reactor 91; The sludge buffer tank 8 is connected with the organic sludge dewaterer 93 through the feed pump of the organic sludge dewaterer 93, and the liquid outlet of the organic sludge dewaterer 93 is connected with the organic filtrate buffer tank 947, and the organic filtrate buffer tank 947 collects The dehydrated filtrate, then the organic filtrate buffer pool 947 is connected with the anaerobic reactor 91 by the organic filtrate anaerobic feed pump, and the organic filtrate anaerobic feed pump transports the organic filtrate into the anaerobic reactor 91 for reaction, and the anaerobic reactor 91 reacts. The gas outlet of the oxygen reactor 91 is connected with the biogas boiler 5, and the water outlet of the anaerobic reactor 91 is ...

Embodiment 3

[0063] This program provides a biomass fractionation and utilization method based on hydrothermal technology, which specifically includes the following steps:

[0064] Step 1: The sludge is passed into the slurry reactor 1, preheated to 95-100°C by the flash steam from the flash reactor 3; then pumped into the hydrothermal reactor 2 by the hydrothermal feed pump , is heated to 160-185°C by the steam generated by the biogas boiler 5; then it enters the flash reactor 3 by gravity flow through the pressure difference, and at the same time of lowering the temperature and pressure, the flash steam is obtained and reused in the slurry reactor 1. The flash sludge temperature is 95-105°C;

[0065] Step 2: The flash sludge flows to the hydrothermal sludge buffer tank 4 by gravity. The solid content of the hydrothermal sludge is 12% to 18%, and the dynamic viscosity is 100-500mPa·s; it needs to be buffered in the hydrothermal sludge Dilution is carried out in the pool 4, the concentrat...

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Abstract

The invention discloses a biomass quality-divided utilization system based on a hydrothermal technology. The biomass quality-divided utilization system comprises a pretreatment tank, a hydrothermal reactor, a flash evaporation reactor, a hydrothermal sludge buffer pool and a multi-stage cyclone separation system, wherein the pretreatment tank, the hydrothermal reactor, the flash evaporation reactor, the hydrothermal sludge buffer pool and the multi-stage cyclone separation system are communicated with one another through pumps; according to the invention, after organic matters and inorganic matters in the sludge are effectively separated by the system and the method, the resource utilization value of the sludge can be improved. Organic sludge is easier to perform anaerobic biogas production; inorganic sludge is excellent in dehydration performance, and a sludge cake with high solid content can be obtained, so that subsequent building materials can be conveniently utilized, or the sludge cake can be used as landfill covering soil; and the scheme is combined with an anaerobic digestion process. Due to the fact that inorganic components in the sludge are separated, sand in the sludgecan be prevented from being deposited and caked in the digestion tank, and the problems that the effective tank capacity of the digestion tank is reduced, and a pipeline is blocked can be solved.

Description

technical field [0001] The invention relates to the technical field of municipal sludge treatment, in particular to a biomass fractionation and utilization system and method based on hydrothermal technology. Background technique [0002] Hydrothermal technology is an efficient treatment method in sewage treatment. Hydrothermal technology is Hydrothermal Modification, or Thermal Hydrolysis, which refers to sealing biomass with high moisture content. The process of heating to a certain temperature and pressure and maintaining it for a period of time to destroy the cell structure and promote the hydrolysis of macromolecular organic matter. Under these conditions, biomass (polysaccharides, oils, proteins, and various cellular substances) undergoes accelerated denaturation and hydrolysis, just as occurs when cooking food in a pressure cooker. After hydrothermal modification, the cell structure is destroyed, and the high-molecular organic matter is broken into smaller molecules. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/18C02F11/00C02F11/04C02F11/12C02F101/10C02F101/30
CPCC02F11/00C02F11/04C02F11/12C02F11/18C02F2101/10C02F2101/30
Inventor 谢非夏洲张超邓舟荀锐
Owner 四川深蓝环保科技有限公司
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