Dry anaerobic reactor capable of improving material flow
By introducing components such as a spiral mixer, a discharge machine, a Teflon coating, and a heating system into the dry anaerobic reactor, the problems of poor material flowability and dead zone caking are solved, achieving efficient anaerobic fermentation and low-energy operation.
Patent Information
- Application Number
- CN202422963498.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-12-03
AI Technical Summary
Dry anaerobic fermentation processes present challenges in material flow, leading to dead zones and material caking at the inlet and outlet, resulting in poor heat transfer, high energy consumption, and difficulty in widespread application.
The design incorporates components such as a spiral mixer, spiral discharge machine, Teflon coating, heating system, and long-shaft agitator, combined with wedge-shaped agitator arms and a power system to improve material flowability and avoid dead zones and caking.
It improves the anaerobic fermentation efficiency of materials, reduces energy consumption, reduces biogas production, increases volumetric gas production rate, and solves the problem of flow propulsion.
Smart Images
Figure CN223837396U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anaerobic reactor technology, specifically a dry anaerobic reactor that can improve material flow. Background Technology
[0002] Anaerobic fermentation is classified into two processes based on the solids content of the feed: dry and wet. Wet fermentation uses materials with a solids content of less than 12%. Due to its mature technology, it is widely used. However, its high water content results in large land area requirements, low volumetric gas production, high energy consumption, high investment, and high raw material requirements. It also produces a large amount of biogas slurry that requires secondary treatment, making commercial operation difficult. Dry fermentation, on the other hand, uses materials with a relatively high solids content, reaching 20-45%. Compared to wet fermentation, the lower water content significantly reduces reactor volume and energy consumption, and produces less wastewater, sometimes even achieving zero wastewater. However, the high solids content makes feeding and discharging operations and material mixing more difficult, easily leading to dead zones and material caking at the inlet and outlet. Poor heat transfer during material heating also severely restricts the widespread application of dry fermentation. Utility Model Content
[0003] The purpose of this invention is to provide a dry anaerobic reactor that can improve material flow and solve the problems mentioned in the background art.
[0004] Technical solution
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a dry anaerobic reactor that can improve material flow, comprising a reactor tank, a spiral agitator installed at the bottom of the reactor tank, a discharge spiral discharger installed at the tail of the reactor tank, a Teflon coating added to the lower half of the reactor tank, a heating system installed inside the reactor tank, a long-shaft agitator built into the reactor tank, the long-shaft agitator consisting of an agitator shaft, an agitator arm support, an agitator arm, and a beak shovel, a power system installed at the right end of the long-shaft agitator, and a first ball bearing support and a second ball bearing support installed on the power system.
[0006] Furthermore, the stirrer arm has a wedge-shaped design.
[0007] Furthermore, the heating system can be selected from electric heating, electromagnetic heating, steam or hot water heating systems.
[0008] This invention provides a dry anaerobic reactor that improves material flow. It offers the following advantages:
[0009] This dry anaerobic reactor, which improves material flow, incorporates a spiral mixer, spiral discharge machine, Teflon coating, heating system, long-shaft agitator, agitator shaft, agitator arm support, agitator arm, a beak shovel, and a power system. This invention offers high adaptability to materials, high anaerobic fermentation efficiency, high volumetric gas production rate, low energy consumption, and low biogas slurry production. Furthermore, its special design addresses issues such as difficult flow propulsion, dead zones, and material caking. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model;
[0011] Figure 2 This is a schematic diagram of the long-shaft agitator and power system of this utility model.
[0012] Among them, 1. Reactor tank, 1.1 Spiral mixer, 1.2 Spiral discharge machine, 1.3 Teflon coating, 2.1-24 Heating system, 3. Long shaft agitator, 3.1 Agitator shaft, 3.2 Agitator arm support, 3.3 Agitator arm, 3.4 Beak shovel, 4. Power system, 4.1 First ball bearing support, 4.2 Second ball bearing support. Detailed Implementation
[0013] like Figure 1-2 As shown, this utility model embodiment provides a dry anaerobic reactor that can improve material flow, including a reactor tank 1. A spiral mixer 1.1 is installed at the bottom of the reactor tank 1 to solve the problems of material difficulty in propulsion and dead zones at the feed point. By setting the operating speed of the spiral mixer 1.1, the residence time of the material in the anaerobic tank is guaranteed, and it can move towards the discharge end. A discharge spiral discharge machine 1.2 is installed at the tail of the reactor tank 1 to achieve automatic and uniform discharge and avoid material dead zones at the discharge point. A Teflon coating 1.3 is added to the lower half of the reactor tank 1 to reduce the friction coefficient and facilitate the downward and forward movement of the material.
[0014] The reactor tank 1 is equipped with a heating system 2.1-24, which is optional and can be electric heating, electromagnetic heating, steam or hot water heating system. The reactor tank 1 has a built-in long shaft agitator 3, which consists of a agitator shaft 3.1, an agitator arm support 3.2, an agitator arm 3.3 and a beak shovel 3.4. The agitator arm 3.3 has a wedge design to facilitate breaking up materials and prevent clumping and caking. The right end of the long shaft agitator 3 is equipped with a power system 4, which is equipped with a first ball bearing support 4.1 and a second ball bearing support 4.2.
Claims
1. A dry anaerobic reactor that improves material flow, comprising a reactor tank (1), characterized in that: A spiral agitator (1.1) is installed at the bottom of the reactor tank (1), and a discharge spiral discharger (1.2) is installed at the tail of the reactor tank (1). A Teflon coating (1.3) is added to the lower half of the reactor tank (1). A heating system (2.1-24) is installed inside the reactor tank (1). A long-shaft agitator (3) is built into the reactor tank (1). The long-shaft agitator (3) consists of an agitator shaft (3.1), an agitator arm support (3.2), an agitator arm (3.3), and an eagle beak shovel (3.4). A power system (4) is installed at the right end of the long-shaft agitator (3). A first ball bearing support (4.1) and a second ball bearing support (4.2) are installed on the power system (4).
2. A dry anaerobic reactor with improved material flow according to claim 1, characterized in that: The stirrer arm (3.3) is wedge-shaped.
3. A dry anaerobic reactor with improved material flow according to claim 1, characterized in that: The heating system (2.1-24) is optional and can be an electric heating, electromagnetic heating, steam or hot water heating system.