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Two-stage type lignin steaming and cooking separation device

A lignin and two-stage technology, which is applied in the direction of feeding devices, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of high cost, large floor area, and shutdown, so as to save power and reduce equipment investment cost effect

Inactive Publication Date: 2011-04-06
浙江格义清洁能源技术有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

In order to make the material form a sealing plug to seal the cooking pressure in the cooking space, it is necessary to configure a high-power motor to make the formed sealing plug overcome the steam pressure, and the power consumption is high
The forced feeding system is expensive and consumes a lot of energy. When in use, it has a lot of friction. The feeding screw wears a lot, and it is easy to cause air leakage due to wear. It needs frequent maintenance and replacement, which is expensive and leads to no Planned to be discontinued
The discharge adopts the method of intermittent spraying, which needs to increase the storage bin, occupies a large area, and needs to add new power to transport to the next level of processing, which is not conducive to continuous production

Method used

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  • Two-stage type lignin steaming and cooking separation device
  • Two-stage type lignin steaming and cooking separation device

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Embodiment Construction

[0015] Open the feeding electric gate valve 3, close the electric gate valve 7, the belt conveyor 1 measures and feeds the raw materials that have been pretreated by steam explosion, and feeds them through the screw conveyor mixer 2. The lye is added from the catalyst inlet 4, and the materials pass through the open feeding The material electric gate 3 enters the heating chamber 6, and after the metering requirement is met, the feeding electric gate 3 is closed, and the heating chamber 6 is fed with steam through the steam inlet 5 for cooking.

[0016] After the design temperature (100-120°C) is reached, the electric gate 7 is opened, and the materials in the heating chamber 6 are transported to the heat preservation chamber 8 through a spiral structure. After the material conveying is completed, close the electric gate 7, feed steam to the heat preservation bin 8, and carry out the second section of cooking. Open the feeding electric gate 3, and simultaneously the raw materia...

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Abstract

The invention relates to a two-stage type lignin steaming and cooking separation device, which comprises a charging mechanism, a steaming and cooking separation mechanism and a discharging mechanism, wherein the charging mechanism comprises a belt conveyor (1) and a spiral mixer (2). The two-stage type lignin device of steaming and cooking separation is characterized in that the steaming and cooking separation mechanism comprises a temperature rise storehouse (6) and a temperature preserving storehouse (8) which are connected in series by a gate valve (7); the temperature rise storehouse (6) is connected with the charging mechanism by a feeding gate valve (3); the temperature preserving storehouse (8) is connected with the discharging mechanism by a discharging gate valve (9); and the temperature rise storehouse (6) and the temperature preserving storehouse (8) are internally provided with spiral output mechanisms. By the sealing action of the gate valves (3), (7) and (9), the device realizes two-stage type steaming and cooking separation and normal pressure operation of charging and discharging.

Description

1. Technical field [0001] The invention relates to a chemical pressure equipment, in particular to a cooking and separating device in the biomass treatment process, in particular to a two-stage cooking and separating lignin device. 2. Background technology [0002] Agricultural and forestry waste is a renewable biomass rich in lignin. Agricultural and forestry wastes need to be cooked after being pretreated by steam explosion to separate lignin from cellulose. The existing continuous cooking process requires the continuous use of 0.6MPa ~ 0.9MPa steam, so when feeding, in order to prevent the back spray of the material in the screw feeder, the feeding system adopts a forced feeding device. The function of the screw feeder is to feed the material continuously and evenly, and squeeze the excess liquid medicine, so that the raw material is gradually compressed into a sealed plug and enters the cooking tube. In order to make the material form a sealing plug to seal the cooking...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J4/00C08H7/00
Inventor 刘志刚管淑清张兴喜梅虎张怀根陈宇刘天霁
Owner 浙江格义清洁能源技术有限公司
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