KR20240097314A - Continuous drying treatment system for garbage - Google Patents

Abstract

(1) Technology field: Eco-friendly treatment of waste containing moisture and solids, including food waste. (2) Challenge to be solved: Waste that generates bad odor, including food waste, is not stored and treated continuously and is therefore wasted. Because of the structure, bad smells leak outside, and workers also have difficulties doing their jobs.　(3) Method of solving the problem: Collect odorous substances generated during storage and odors generated during the processing process and incinerate them at high temperature with a ceramic heater of over 800 degrees Celsius. Directly connect the storage and processing processes and apply a spiral conveyor for continuous input and drying. (4) Effect: The entire processing process can be automated, and it can be configured as a system with a sealed structure that prevents odorous substances from leaking out. Continuous input and drying are performed to save energy, and a circular ceramic heater with a high temperature of over 800 degrees is used. It can be used to incinerate effectively, and by circulating in a closed circuit, odorous components are incinerated without external leakage. In addition to food waste, excrement and sludge generated during the sewage treatment process can be efficiently treated.

Description

Food waste continuous drying treatment device {CONTINUOUS DRYING TREATMENT SYSTEM FOR GARBAGE}

In the present invention, in separating food waste and contaminated water and continuously drying them, the odor generated during the treatment process is sealed and negative pressure is maintained, so that moisture and solids are separated and treated without odor components leaking to the outside, thereby increasing efficiency and eliminating odor. This is a device that continuously treats odor-free substances by burning them through a high-temperature treatment device. The separated contaminated water is evaporated through a heating device to recover moisture in the form of water vapor, and the odorous components are sent to a high-temperature treatment device to be burned, making it eco-friendly. It is a device that fundamentally solves bad odors, and is a continuous treatment device for all types of waste and waste in the form of waste water and solids present together at food waste disposal, excrement, and industrial sites that cause complaints due to bad odor.

Currently, among various methods to remove ingredients that cause bad odors, direct burning at a high temperature of over 800 degrees is applied to remove bad odors generated during the treatment process.

A screw dehydrator is used to separate moisture from food, excrement, and water-containing sludge and obtain solids.

To dry dehydrated solids, a spiral conveyor made of SUS304, which resists corrosion and high temperatures, is used to enable continuous input and drying.

1. Even if food spoilage continues, odor components do not leak to the outside and the generated odor components are treated at a high temperature of 800 or higher to continuously remove the cause of odor.

2. Since wastewater and solids exist together, the process of putting them into the treatment device at once, removing moisture, drying the solids, and discharging them does not occur continuously.

1. It is a device that inhales odors generated from waste and excrement that continuously generate odors such as food. It always maintains negative pressure in storage and processing devices to prevent odorous substances from leaking to the outside and directly connects the passage between the dehydrator and dryer. Therefore, a closed type that does not open to the outside is used.

2. Using a specially designed circular high-temperature heater that generates a high temperature of over 800 degrees, odor components are burned as they pass through the inside of the heater. A high-temperature heater is placed inside the solids continuous dryer to save energy and maximize efficiency.

3. In order to separate moisture and solids in food and excrement, a screw dehydrator is directly connected to the bottom of the waste storage tank to prevent odor from leaking out, collect moisture separately and store it in the tank, remove large particles through a filter, and evaporate in the moisture evaporation tank. Increase efficiency.

4. Solids from which some of the moisture has been removed through the screw dehydrator pass through a spiral conveyor (length varies depending on capacity) equipped with a belt made of stainless steel, and are continuously fed and dried. The spiral conveyor is installed in an insulated chamber (high-temperature sealed room), and a heater or heat exchanger (electric or heat transfer oil) is installed inside the chamber to maintain a temperature of over 100 degrees.

In the treatment of conventional wastes such as food waste that contain moisture and solid matter and generate bad odors, the storage and treatment areas are sealed and processed continuously without any sections exposed to the outside, so the substances that cause bad odors continuously circulate through the internal treatment device. By burning, bad odors do not leak out during the storage and processing process, which reduces civil complaints and allows workers to work in an improved environment.

The moisture and solids are separated separately with a screw dehydrator, the moisture is collected in a tank and heated to separate and recover the moisture from the steam, and the odor is sent to a high-temperature heater and burned to prevent bad odor. The solids separated through the screw dehydrator are rotated continuously and the moisture of the solids is removed while rotating in a high-temperature chamber through a spiral conveyor capable of continuous input, and the dried final solids are collected in a storage tank and processed separately. Solids from which moisture has been completely removed can be pulverized and used as fuel for an incinerator.

Figure 1.: Food waste continuous processing device layout.

(Example 1)

( 0010 ) Food waste storage tank and screw dehydrator

Figure 2. Food waste storage tank and screw dehydrator

Odors generated during the storage of food waste are sucked into the storage tank through a pipe connected to an odor-collecting suction fan to maintain negative pressure at all times, and the collected gas is sent to a high-temperature heating device in the drying furnace and incinerated. By directly connecting the storage tank and the screw dehydrator, we apply a structure that prevents odors from leaking out during the movement and dehydration process. Inside the tank where the dehydrated moisture is stored separately, a filter is used to separate large particles in advance and heat the moisture. Improves evaporation efficiency.

(Example 2)

( 0011 ) Contaminated water heating evaporation device

Figure 3. Wastewater heating evaporation device

Food waste is dehydrated and collected separately, and the primary filtered moisture is sent to a heating and evaporation device. Depending on the treatment capacity, a tank made of insulated SUS304 is heated using an electric heater or heat medium oil to evaporate the contaminated water inside and the steam outlet. The moisture is converted into water and stored in a tank, and the odor molecules are sent to a device with a high temperature of over 800 degrees to burn and process the odor particles. The tank's water level sensor is specially designed to withstand high temperatures and is highly resistant to contamination and corrosion, automating the process of heating and filling the tank with wastewater according to the water level. To perform the heating evaporation process more efficiently, it is stirred with a stirring device.

(Example 3)

(0012) Solids continuous drying and storage device

Figure 4. Solids continuous drying and dry matter storage device

The solids are continuously fed from the airtight outlet of the screw dehydrator into an insulated high-temperature chamber maintained above 100 degrees where a spiral conveyor made of SUS304 is installed. The spiral conveyor varies in length depending on the processing capacity and slowly rotates for drying. It is a system in which input and drying are carried out continuously. Solids containing moisture injected through the lower inlet rotate and move to the top, where they are dried and fall into the storage tank for storage. The chamber is heated by a device that incinerates odor-causing particles at temperatures above 800 degrees Celsius and a heating device that maintains the high temperature of the insulated chamber with a spiral conveyor and an entrance door for maintenance. The chamber is maintained at negative pressure at all times through a water vapor suction device.

(Example 4)

( 0013 ) Moisture recovery device and odor transfer device from steam

The water vapor collected inside the contaminated water evaporation treatment tank and the drying furnace is cooled and recovered through a device that converts the water vapor into water. Some of the remaining water vapor is discharged through a heat exchanger, and the remaining gas is stored in a high temperature heater device of over 800 degrees installed in the chamber where the drying furnace is located. It is sent to and incinerated, forming a closed loop and infinitely circulating.

01: Food waste storage tank before processing
02: Fan motor and pipe for storage tank odor collection
03, 14: Screw dehydrator directly connected to the food waste storage tank
04: Tank for primary filtration and storage of dehydrated contaminated water
05: Dehydrated contaminated water transfer pump
06: Stirring geared motor in the contaminated water evaporation device
07: Input port from the primary storage tank to the evaporation tank
08: Steam outlet of evaporation tank
09: Electric heater inside evaporator
10: Double tank and insulation layer for heat medium oil used when the evaporator capacity is large
11: Odor incineration device and chamber heating device maintaining high temperature above 800 degrees
12: Vapor recovery device in high temperature drying chamber
13: Spiral conveyor device for continuous drying and transport of solids
15: Discharge of solids dehydrated from screw dehydrator (sealed with chamber)
16: Dehydrated contaminated water outlet
17: Dried solids storage tank (sealed with chamber)
18: Moisture recovery from steam, remaining odor and residual water vapor outlet
19: Water vapor inlet generated from the drying chamber with the contaminated water evaporation tank and spiral conveyor
20: Multi-stage water vapor cooling device
21: Coolant (fill the initial coolant and use the water obtained from the steam together, leaving a certain amount and draining.)

Claims (1)

Independence Port: Continuous food waste fully automatic processing system using spiral conveyor
(Claim 2) In claim 1, a method of preventing odor from leaking to the outside by directly connecting a food waste storage tank and a screw dehydrator for dehydration.

(Claim 3) In claim 1, a method of directly injecting solids separated from the screw dehydrator into a spiral conveyor made of SUS 304 and a method of using a sealed structure including a detachable type.

(Claim 4) In claim 1, the process of storing dried solids by dropping them from the top of the spiral conveyor into a storage tank is a method of applying a sealed structure including a detachable type.
(Claim 5) In claim 1, the contaminated water separated from the screw dehydrator and treated with the primary filter is sent to the evaporation tank, stirred, heated and evaporated, and a water level sensor that can withstand high temperature and contamination is specially manufactured and installed inside the tank to introduce the contaminated water. Method of automating the process of overevaporation
(Claim 6)
Independent Port: Incineration device for odor-generating gas components
(Claim 7) In claim 6, a method of effectively incinerating odor-causing components by applying a circular ceramic heater capable of heating at a high temperature of 800 degrees or higher.
(Claim 8) In claim 6, the odor-causing ingredients are continuously circulated in a closed circuit and are incinerated.
(Claim 8)
Independent claim: The device of the present invention can also be applied to treat food waste, livestock waste, and sludge from industrial wastewater facilities.