Anaerobic tank reflux heating device

By introducing a semiconductor heating plate and insulation layer into the kitchen waste fermentation tank, combined with an intelligent control system, the problems of low heating efficiency and high energy consumption in winter are solved, achieving a highly efficient and energy-saving heating effect, improving fermentation efficiency and reducing the wastewater treatment load.

CN224280235UActive Publication Date: 2026-05-26SHANGHAI ANRUOBIKE ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI ANRUOBIKE ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-02-10
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing kitchen waste fermentation tanks have low heating efficiency, uneven heating, and high energy consumption in winter, which affects the fermentation effect. Furthermore, direct steam heating reduces the number of bacteria and increases the wastewater treatment load.

Method used

The system employs a semiconductor heating plate and insulation layer combined with an intelligent control system. It heats the outer wall of the hopper and screw feeder, and achieves intelligent temperature control by combining a temperature transmitter and an electrical control box, thereby improving heating uniformity and energy utilization.

Benefits of technology

It achieves efficient and uniform heating, reduces energy consumption, minimizes the amount of steam condensate entering the material system, and improves fermentation efficiency and environmental protection.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to an anaerobic digester reflux heating device, comprising a hopper, a reflux material inlet, a temperature transmitter, a fresh material inlet, a screw feeder, a semiconductor heating plate, and an electrical control box. The reflux material inlet is installed on the top of the hopper, the temperature transmitter is installed on the hopper, the fresh material inlet is installed on the side of the hopper, the screw feeder is connected to the hopper, and the semiconductor heating plate is installed on the outer wall of the hopper and the screw feeder. The electrical control box is connected to the temperature transmitter and also to the semiconductor heating plate. This anaerobic digester reflux heating device, by introducing a semiconductor heating plate and an insulation structure, solves problems existing in the prior art, such as uneven heating and energy waste. Combined with an intelligent control system, the entire device becomes more efficient and energy-saving.
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Description

Technical Field

[0001] This utility model relates to the field of kitchen waste treatment equipment, and more particularly to the field of kitchen waste degradation fermentation tanks, specifically referring to an anaerobic tank reflux heating device. Background Technology

[0002] Food waste is metabolized by anaerobic microorganisms, converting organic matter into biogas (mainly methane) and solid residue. This technology has significant advantages in resource recycling and waste treatment.

[0003] Kitchen waste undergoes fermentation and degradation in the fermentation tank. However, in winter, the temperature does not reach 30-35℃, affecting the fermentation effect. The original technology directly heated the recycled material and initial raw materials with steam. High-temperature steam heating of the recycled material reduces the number of bacteria in the recycled material and also reduces the solids content of the material entering the anaerobic digester. At the same time, direct heating leads to a large amount of saturated steam entering the material, increasing the load on the wastewater treatment system.

[0004] Existing reflux heating devices suffer from low efficiency, uneven heating, and high energy consumption in practical applications, failing to effectively meet the demands of modern environmental protection and resource recycling. Therefore, there is an urgent need for a new type of reflux heating device to improve heating efficiency, reduce energy consumption, and simplify operation. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide an anaerobic tank reflux heating device that is highly efficient, easy to operate, and has a wide range of applications.

[0006] To achieve the above objectives, the anaerobic tank reflux heating device of this utility model is as follows:

[0007] The main features of this anaerobic digester reflux heating device are as follows: the device includes a hopper, a reflux material inlet, a temperature transmitter, a fresh material inlet, a screw feeder, a semiconductor heating plate, and an electrical control box. The reflux material inlet is installed on the top of the hopper, the temperature transmitter is installed on the hopper, the fresh material inlet is installed on the side of the hopper, the screw feeder is connected to the hopper, the semiconductor heating plate is installed on the outer wall of the hopper and the screw feeder, and the electrical control box is connected to the temperature transmitter and also to the semiconductor heating plate.

[0008] Preferably, an insulation layer is added to the outer wall of the hopper.

[0009] Preferably, the apparatus further includes an anaerobic digester and an anaerobic digester feed pump, wherein the anaerobic digester feed pump is installed at one end of the screw feeder, and the anaerobic digester is connected to the anaerobic digester feed pump.

[0010] Preferably, the number of semiconductor heating plates is one or more.

[0011] Preferably, the reflux material inlet receives reflux material from the anaerobic digester, and the fresh material inlet receives fresh material transported to the anaerobic digester from the upstream section.

[0012] The anaerobic digester reflux heating device of this invention solves problems existing in the prior art, such as uneven heating and energy waste, by introducing a semiconductor heating plate and insulation structure. Simultaneously, combined with an intelligent control system, the entire device becomes more efficient and energy-saving. This improvement is not a simple combination or obvious change, but an innovative design based on specific needs, and its practical application has yielded excellent results. Attached Figure Description

[0013] Figure 1 This is a front view of the anaerobic tank reflux heating device of this utility model.

[0014] Figure 2 This is a schematic diagram of the back of the anaerobic tank reflux heating device of this utility model.

[0015] Figure label:

[0016] 1. Hopper

[0017] 2. Reflux material inlet

[0018] 3 Temperature transmitter

[0019] 4. Fresh material inlet

[0020] 5. Screw feeder

[0021] 6 Semiconductor heating plate

[0022] 7. Electrical control box Detailed Implementation

[0023] To more clearly describe the technical content of this utility model, the following description is provided in conjunction with specific embodiments.

[0024] The anaerobic digester reflux heating device of this utility model includes a hopper 1, a reflux material inlet 2, a temperature transmitter 3, a fresh material inlet 4, a screw feeder 5, a semiconductor heating plate 6, and an electrical control box 7. The reflux material inlet 2 is installed on the top of the hopper 1, the temperature transmitter 3 is installed on the hopper 1, the fresh material inlet 4 is installed on the side of the hopper 1, the screw feeder 5 is connected to the hopper 1, the semiconductor heating plate 6 is installed on the outer wall of the hopper 1 and the screw feeder 5, and the electrical control box 7 is connected to the temperature transmitter 3 and also to the semiconductor heating plate 6.

[0025] In a preferred embodiment of the present invention, a heat insulation layer is added to the outer wall of the hopper 1.

[0026] In a preferred embodiment of the present invention, the device further includes an anaerobic tank and an anaerobic tank feed pump. The anaerobic tank feed pump is installed at one end of the screw feeder 5, and the anaerobic tank is connected to the anaerobic tank feed pump.

[0027] In a preferred embodiment of this utility model, the number of semiconductor heating plates 6 is one or more.

[0028] In a preferred embodiment of this utility model, the reflux material inlet 2 receives reflux material from the anaerobic tank, and the fresh material inlet 4 receives fresh material transported from the previous process to the anaerobic tank.

[0029] In a specific embodiment of this utility model, a reflux heating device for a vertical dry anaerobic digester is disclosed. This device is used during anaerobic digester feeding or reflux heating. The material is heated on the outer walls of the hopper 1 and the screw feeder 5. The heated material is then pressurized and transported to the anaerobic digester by the anaerobic digester feed pump. Simultaneously, the number and temperature of the semiconductor heating plates 6 are controlled by temperature regulation to maximize energy savings and improve energy utilization. The energy-saving effect is significant, and practical application has demonstrated its effectiveness.

[0030] This utility model includes a hopper 1, a reflux material inlet 2, a temperature transmitter 3, a fresh material inlet 4, a screw feeder 5, a semiconductor heating plate 6, and an electrical control box 7. The reflux heating device adds a semiconductor heating plate 6 to the existing hopper 1 and screw feeder 5, and insulates the equipment externally. The addition of the reflux heating pipe can significantly improve heat exchange efficiency, optimize key parameters in the fermentation process, and increase the solids content of the material entering the anaerobic tank.

[0031] The hopper 1 is used to store and heat the reflux material.

[0032] The main function of the reflux material inlet 2 is to allow the reflux material from the anaerobic tank to enter the hopper 1 and be heated.

[0033] The temperature transmitter 3 is mainly used to detect the temperature of the return material in real time and adjust the number and temperature of the semiconductor heating plates 6 by the electrical control box 7.

[0034] The fresh material inlet 4 is mainly used to receive fresh materials from the previous section and transport them to the anaerobic tank, and then heat them.

[0035] The screw feeder 5 described above is mainly used for mixing and conveying the return material.

[0036] The semiconductor heating plate 6 is specifically a semiconductor electric heating plate with uniform temperature control, and its main function is to heat fresh materials and recycle materials.

[0037] The main function of the electrical control box 7 is to monitor the temperature of the mixed materials in real time through the temperature transmitter 3, and to control the temperature of the mixed materials by controlling the number and temperature of the semiconductor heating plates 6.

[0038] This invention adds a semiconductor heating plate 6 to the outer wall of the hopper 1 and the screw feeder 5 for preheating the materials. This helps ensure that the materials entering the anaerobic digester reach a suitable processing temperature, thereby improving the efficiency of anaerobic fermentation.

[0039] This invention incorporates insulation measures by adding an insulation layer to the outer wall to reduce heat loss, improve heating efficiency, and save energy consumption.

[0040] This utility model features an intelligent temperature control system. The temperature transmitter 3 monitors temperature changes, and the electrical control box 7 controls the working status of the semiconductor heating plate 6 (such as the number of plates turned on and the set temperature), thereby achieving intelligent management and further optimizing energy utilization efficiency.

[0041] The energy-saving effect of this invention is significant. Practical application has verified that this design not only improves the operating efficiency of the system, but also achieves a significant energy-saving effect.

[0042] This invention has significant environmental benefits. By indirectly heating through the semiconductor heating plate 6, it greatly reduces the amount of saturated steam condensate entering the material system, effectively alleviating the wastewater treatment load.

[0043] For the specific implementation scheme of this embodiment, please refer to the relevant descriptions in the above embodiments, which will not be repeated here.

[0044] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0045] It should be noted that in the description of this utility model, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means at least two.

[0046] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] The anaerobic digester reflux heating device of this invention solves problems existing in the prior art, such as uneven heating and energy waste, by introducing a semiconductor heating plate 6 and a heat preservation structure. Simultaneously, combined with an intelligent control system, the entire device becomes more efficient and energy-saving. This improvement is not a simple combination or obvious change, but an innovative design based on specific needs, and its practical application has yielded excellent results.

[0048] In this specification, the present invention has been described with reference to specific embodiments thereof. However, it will be apparent that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, the specification and drawings should be considered illustrative rather than restrictive.

Claims

1. An anaerobic tank return flow heating device, characterized by, The device includes a hopper, a reflux material inlet, a temperature transmitter, a fresh material inlet, a screw feeder, a semiconductor heating plate, and an electrical control box. The reflux material inlet is installed on the top of the hopper, the temperature transmitter is installed on the hopper, the fresh material inlet is installed on the side of the hopper, the screw feeder is connected to the hopper, the semiconductor heating plate is installed on the outer wall of the hopper and the screw feeder, and the electrical control box is connected to the temperature transmitter and also to the semiconductor heating plate.

2. The anaerobic tank return flow heating device according to claim 1, characterized by An insulation layer was added to the outer wall of the hopper.

3. The anaerobic jar backflow heating device of claim 1, wherein, The device also includes an anaerobic tank and an anaerobic tank feed pump, wherein the anaerobic tank feed pump is installed at one end of the screw feeder, and the anaerobic tank is connected to the anaerobic tank feed pump.

4. The anaerobic tank reflux heating device according to claim 1, characterized in that, The number of semiconductor heating plates is one or more.

5. The anaerobic tank reflux heating device according to claim 1, characterized in that, The reflux material inlet receives reflux material from the anaerobic digester, and the fresh material inlet receives fresh material transported to the anaerobic digester from the upstream section.