Tiantong Holdings Co., Ltd. (referred to as Tiantong Holdings, TDG) has always attached great importance to environmental protection work. In recent years, it has invested more in the second venture and strives to make the environmental protection industry bigger and stronger. It has more than 10 years of cooperation with Mitsubishi, Hitachi, and other Japanese companies, and has a number of joint venture factories. The main product is a disc type sludge dryer , which is the sludge drying technology recommended by the three ministries and commissions of the country, and is the mainstream drying equipment for sludge disposal in developed countries, and it is at the leading level in the world. TDG has introduced sludge drying and incineration disposal technologies suitable for China's national conditions from a full set of Mitsubishi, Hitachi and other companies, with a high starting point and investment. The technology is mature, advanced, standardized environmental protection, high degree of automation, moderate investment, low operation and maintenance costs, large amount of processing, durable, simple technology, power consumption, good working environment, stable operation and so on.

Disc type sludge dryer

TDG sludge treatment integrated technology can be roughly divided into two modules: sludge disc drying module and sludge incineration module. According to local sludge disposal status and local requirements, these two modules can be constructed separately or in combination.

Incineration, building materials use and other disposal methods require sludge moisture content of 30% to 40%, then the sludge must be heat dried. One of the main reasons for the failure of some sludge disposal projects in the country is that the sludge dryer is not closed. TDG employs a disc dryer , which has been successfully used in Japan, South Korea and Europe for more than 20 years and has been continuously improved to provide superior performance. The sludge has wide adaptability, high stability, high efficiency, and low energy consumption. It is the sludge drying technology recommended by the Ministry of Environmental Protection. The heat source of the disc dryer can be low grade steam, heat transfer oil, etc. The drying process is fully enclosed and negative pressure is taken to ensure excellent environmental performance. The disc dryer can directly dry the sludge with a water content of 80%. To reduce the operating cost, the sludge from the previous module can also be dried. The dried sludge is in the form of small pellets of 0 to 5 mm in size, and has a caloric value of about 1000 to 2000 kcal, which has a certain economic value and is very convenient for further disposal.

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TDG incineration technology adopts the most popular fluidized bed incineration technology in the world. The international market share of sludge incineration technology is about 60-70%. TDG sludge incineration technology has the following characteristics: thorough incineration, high efficiency, low pollutant emission, good fuel adaptability, and safety. After the incineration of flue gas through standard disposal, the discharge can strictly meet the national standards for municipal solid waste incineration. After years of analysis of sludge in various regions and industries in China, TDG believes that the risk of incineration and disposal of dioxins does not exist.

The overall production process of the technical transformation project is as follows: After the sludge is transported to the factory area by airtight vehicles, it is first dried, then sent to the front fuel bunker through the conveying device, and fed into the furnace for combustion by the feed pipe in front of the boiler. At the same time when the sludge is fed into the incinerator, a part of auxiliary fuel coal is also fed into the incinerator to ensure that the temperature in the furnace is maintained above 850°C. After burning, the heat energy released by the sludge and coal is absorbed by the steam, converted into heat energy of the steam, and partly supplied to the heat users, and partly used for sludge drying. The waste gas produced during the drying process of the sludge is condensed and then discharged into the incinerator for incineration as a secondary air. The sludge left behind by the sludge and coal incineration is discharged through the slag cooler. The incineration flue gas is treated by the flue gas purification system and discharged through a 150 m high chimney. At present, three disc-type sludge drying equipments have been delivered and are expected to be commissioned in early 2010.

The integrated technology of TDG sludge treatment is in full compliance with the development direction of reduction, stabilization, harmlessness, and even resource utilization advocated by the sludge disposal policy, and provides practical ideas for solving the sludge disposal problem in China.

HDPE Steel Strip Reinforced Corrugated Pipe

HDPE steel strip reinforced corrugated pipe

HDPE steel strip reinforced corrugated pipe Appearance, standard and Application

Black. Implementation of CJ / T225-2006 "buried HDPE steel strip reinforced corrugated pipe ; Products are widely used in urban drainage, sewage engineering, agricultural irrigation, drip irrigation, water-saving irrigation projects, drainage, sand control projects.

HDPE steel strip reinforced corrugated pipe Specification

1. N8(ID 300mm.400 mm.500 mm.600 mm.700 mm.800 mm.1000 mm.1200 mm.1400 mm.1500 mm.1600 mm.1800 mm.2000 mm)

2. N10(ID300mm.400 mm.500 mm.600 mm.700 mm.800 mm.1000 mm.1200 mm.1400 mm.1500 mm.1600 mm.1800 mm.2000 mm)

3. N12.5(ID 300mm.400 mm.500 mm.600 mm.700 mm.800 mm.1000 mm.1200 mm.1400 mm.1500 mm.1600 mm.1800 mm.2000 mm)

HDPE steel strip reinforced corrugated pipe Features

n High pressure bearing capacity, high impact resistance capacity: pipe is steel strip reinforced, high ring stiffness , good adaptability for any foundation conditions;

n Economy: lower cost than the specifications of other plastic pipe, light weight, save transportation and construction costs, easy management and maintenance; large diameter, high ring stiffness;

n Chemical resistance: will not be corroded by sewage, waste water and chemicals, will not be corroded by the substances in soil, it will not be damaged by plant roots;

n Anti-aging: the pipe is generally in black color, can withstand the direct sunlight in the stacking and construction process.

n Excellent wear resistance, Better than steel pipe.cast iron pipe, cement pipe;

n Superior drainage: small water flow resistant in the inner wall, Drain fast, Strong water passing ability. large fluid flow.

n The composite of each layer is carried out in the molten state of the plastic, which is completely different from the winding pipe (medium hole wall tube), so the composite fastness of each layer is very reliable;

n Pipe can be used hot melt welding, clamp type rigid connection, heat shrinkable belt connection and other connections, suitable for different piping system requirements, convenient and reliable.

Hdpe Steel Strip Reinforced Pipe,Steel Strip Reinforced Hdpe Pipe,Steel Strip Spiral Corrugated Pipe,Corrugated Drain Pipe

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