Crop straw pretreatment reaction tank

A crop straw and pretreatment technology, applied in the direction of biomass pretreatment, bioreactor/fermenter combination, biomass post-treatment, etc., can solve the problems of polluted environment, high energy consumption, low pretreatment effect, etc., and achieve high efficiency Effect of transformation and promotion of decomposition

Inactive Publication Date: 2019-03-05
吴鹃
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, the pretreatment methods mainly include physical methods, chemical methods and biological methods. These methods can improve the anaerobic digestibility and gas production rate of straw, but there are also a series of problems, each with its own limitations.
The physical method has the problem of high energy consumption, and the treatment effect is often closely related to the cost

Method used

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  • Crop straw pretreatment reaction tank

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Embodiment Construction

[0018] Such as figure 1 As shown, the present invention includes a tank body 2 arranged in the jacket 1, the upper and lower ends of the tank body 2 are respectively provided with an upper head 3 and a lower head 4, and the upper head 3 is provided with a material inlet 5, a material sampling Port 6 and gas outlet 7, the tank body 2 is equipped with an oxygen pipe 8, a stirring and conveying device, a heating device, a temperature measuring instrument 19, a spraying device, a leachate return device, an oxidation-reduction potential meter and a liquid level controller. The lower end of the body 2 is provided with a discharge pipe 9 .

[0019] The stirring and conveying device includes a stirring shaft 10 arranged axially in the center of the tank body 2. The upper end of the stirring shaft 10 passes through the upper head 3 and connects to the motor 12 through a coupling 11. The stirring shaft 10 and the upper head 3 adopt a mechanical seal 13, and the stirring shaft 10 The lo...

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Abstract

The invention discloses a crop straw pretreatment reaction tank. The reaction tank includes a tank body arranged in a clamping sleeve. An upper seal head and a lower seal head are respectively arranged on the upper and lower ends of the tank body. The upper seal head is provided with a feeding port, a material sampling port and an air outlet. An oxygen pipe and a stirring conveying device are arranged in the tank body. A discharging pipe is arranged at the lower end of the tank body. The crop straw pretreatment reaction tank can perform aerobic, micro-aerobic or anaerobic pretreatment on cropstraw to promote the decomposition of lignocellulose, and transport materials in the tank and bio-metabolic heat to an anaerobic fermentation tank through an auger conveying mechanism formed by the combination of a spiral agitator and the discharging pipe so as to realize efficient conversion of anaerobic fermentation of the straw.

Description

technical field [0001] The invention relates to a crop straw resource utilization device, in particular to a crop straw pretreatment reaction tank. Background technique [0002] my country is a large agricultural country, and the annual output of crop straw is about 700 million tons. Due to technical and social reasons, the effective utilization rate of crop straws is less than 30% of the total output, and most of the crop straws are piled up in the fields to rot naturally or be directly burned on the spot, which not only causes serious environmental pollution, but also causes a huge waste of resources. Therefore, increasing the comprehensive utilization of crop straw is of great significance to make up for the shortage of resources in our country and promote the sustainable development of agriculture. [0003] Anaerobic fermentation is one of the most effective methods for processing crop straw. Through the metabolism and energy conversion of microorganisms, low-grade ener...

Claims

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Application Information

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IPC IPC(8): C12M1/34C12M1/107C12M1/04C12M1/02
CPCC12M21/04C12M27/08C12M29/06C12M41/12C12M41/44C12M45/02
Inventor 吴鹃
Owner 吴鹃
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