The structure of the furnace and the role of each part

At present, refractories are widely used in raw materials for boiler manufacturing.

There are two types of roofs of heating furnaces made of refractory materials, one is a vault made of refractory bricks; The other is the open-hearth top used by ordinary large stoves.

There are two types of refractory castable furnace top structures, one is a monolithic pouring structure, and the other is a prefabricated block structure.

Regenerative heating furnace is a new type of heating furnace developed in recent years, which has received great attention from the metallurgical industry due to its high efficiency and energy-saving characteristics. As the raw material for its manufacture, the refractory not only ensures the excellent performance of low cement, ultra-low cement and cement-free castable, but also can be quickly constructed, especially can be baked quickly, so that the furnace body of the overall castable can be baked within 3 5 days, and the fast-drying anti-slag castable has excellent anti-oxidation iron scale erosion characteristics in addition to the above characteristics.

The heat storage body has ceramic balls and ceramic honeycomb body, and the development trend is to use ceramic honeycomb body. The high-temperature section is made of high-purity aluminum, which has high refractory and good slag resistance; The middle part is made of mullite material; The low-temperature section is made of iolite, which is characterized by good corrosion resistance and quenching and heat resistance under working conditions below 1000. Corundum retaining bricks are added at the front end of the honeycomb to reduce the radiation of the high-temperature furnace to the honeycomb, and at the same time, the stacking stability of the honeycomb can be increased.

Heating furnace is the equipment (industrial furnace) that heats materials or workpieces (generally metal) to the rolling and forging temperature, mainly in petroleum, chemical, metallurgy, machinery, heat treatment, surface treatment, building materials, electronics, materials, light industry, daily chemicals, pharmaceuticals and other industries.

According to the principle distribution, the furnace chamber is divided into a preheating section, a heating section and a soaking section along the length direction. The lower temperature of the furnace at the feed end is the preheating section, which is used to improve the thermal efficiency of the furnace by using the heat of the furnace gas. The heating section is the main heating section, and the furnace gas temperature is high to facilitate rapid heating.

The soaking section is located at the discharge end, and the difference between the furnace gas temperature and the metal material temperature is very small, so as to ensure that the cross-sectional temperature of the furnace blank is uniform. The furnace used to heat small broken fabric blanks has only a preheating section and a heating section.

Continuous heating furnaces usually use gaseous fuel, heavy oil or pulverized coal, and some burn lump coal. It is also possible to use the effective exhaust gas heat to install a heat exchanger to preheat air and gas in the flue, or to install a waste heat boiler. Heating or hot water use.

Summary. The method of making a preheater for preheating coke oven gas.

Technical field: the present invention relates to a preheater for preheating coke oven gas, which belongs to the technical field of coke oven gas preheating.

Background technology: Due to the presence of tar, naphthalene and desulfurization droplets and other impurities in the coke oven gas, it is easy to cause the device to be blocked during the preheating process. In the prior art, when the preheating device is cleared, because there is no special entrance for the staff to carry out the blocking, a large crane must be used to disassemble the whole preheater, which causes the cleaning process to be particularly cumbersome, and thus also causes certain influence on the normal operation of the device.

Contents of the invention. The object of the present invention is to solve the problem that the structure of the existing coke oven gas preheating device is inconvenient to clean up, and is easy to block, and provides a preheater for preheating coke oven gas. The preheater for preheating coke oven gas as described in the present invention comprises a lower buffer chamber, a preheating section and an upper buffer chamber, and it also comprises an inspection hole, and the inspection hole is arranged on the side wall of the lower section buffer chamber.

The side wall of described lower section buffer chamber is also provided with dirt discharge port, coke oven gas inlet and steam pipeline port, and coke oven gas inlet and steam pipeline port are arranged on the side wall of the lower section buffer chamber opposite to the inspection hole.

Construction of a coke oven preheater.

The manufacturing method and technology of the preheater for preheating coke oven gas are in the field of god: the present invention relates to a preheater for preheating coke oven gas, which belongs to the technical field of coke oven gas preheating. Background technology:

Due to the presence of tar, naphthalene and desulfurization droplets and other sundries in the coke oven gas, it is easy to cause the device to be blocked during the preheating process. In the prior art, when the preheating device is cleared, because there is no special entrance for the staff to carry out the blocking, a large crane must be used to disassemble the integral preheater, and this number of rounds causes the cleaning process to be particularly cumbersome, and thus also causes certain influence on the normal operation of the device. Content of the invention: The object of the present invention is to solve the problem that the structure of the existing coke oven gas preheating device is inconvenient to clean up, and is easy to block, and provides a preheater for preheating coke oven gas.

The preheater for preheating coke oven gas as described in the present invention comprises a lower section of pure tung loss buffer chamber, a preheating section and an upper section buffer chamber, and it also comprises an inspection hole, and the inspection hole is arranged on the side wall of the lower section buffer chamber. The side wall of described lower section buffer chamber is also provided with dirt discharge port, coke oven gas inlet and steam pipeline port, and coke oven gas inlet and steam pipeline port are arranged on the side wall of the lower section buffer chamber opposite to the inspection hole.

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The structure of the furnace is: firing (left and right structure) furnace (left and right structure).

The structure of the furnace is: 相 (left and right structure) furnace (left and right structure) pinyin is: shāolú Zhuyin is: 告帆 .

The specific explanation of the furnace is what is dusty, we will introduce it to you through the following aspects:

1. Explanation of terms [click here to view the details of the plan].

Metal smelting furnaces.

2. Citations and Explanations.

Metal smelting furnaces. Quoted from "The Book of Southern Qi: The Biography of Liu Yi": "Mengcheng sent friends to burn four schools, one zhang high, and one zhang and five feet wide. ”

3. Network Explanation.

Furnace burning, a Chinese word, pronounced shāolú, means metal smelting furnace.

Verses about the furnace.

Tree burner rings.

Idioms about the furnace.

The furnace is pure in winter, the summer furnace is set on fire, the summer furnace is set on the charcoal in the winter, and another stove is melted into a furnace, the furnace is red, the furnace is snowed, and the flood furnace is snowed.

Words about the furnace.

The furnace is pure and green, the summer furnace is on the charcoal in winter, the furnace is burning, the mountain is burned, the furnace is snowed, the hammer is melted in a furnace, and the furnace is melted in a furnace in the winter and summer.

Sentence formation about burner.

1. Combined with the research of the subject, the design and research of the self-aligning device of the final stage of the calciner transmission of a factory were studied.

2. In recent years, Chinese cities have tried to build waste incinerators with the aim of burning waste while generating electricity.

3. One door is marked to lead to the incinerator, and the other door is not marked, but I can hear the sounds of different animals coming from behind the door.

4. the utility model is applicable to all combustion furnaces, such as industrial kilns, boilers, civil tea stoves.

5. The results show that its application is not only feasible, but also has more superior economic and environmental protection effects than that of muffle furnace.

The tube bundle of surface heater is in the form of straight tube, U-shaped tube and spiral tube. According to the different connection methods of the tube bundle and the simplified heater, it can be divided into two types: tubular sheet water chamber type and joint box spiral tube type.

1) Tubular sheet water chamber heater: The heating surface of the tubular sheet water chamber heater is a U-shaped tube bundle or straight tube bundle using brass tube (for low-pressure heater) or steel pipe (for high-pressure heater), the tube is fixed on the tube sheet by the method of expansion joint, welding or expansion joint and then welding, and the entire heating surface tube bundle is placed in the cylindrical shell of the heater and fixed with a special skeleton to avoid vibration. The housing of the low-pressure heater is bolted with flanges together with the tube sheet and the tube sheet with the end cap that forms the water chamber.

The shell of the high-pressure heater and the tube sheet, the tube sheet and the water chamber are all welded connection structure, and the manhole cover of the water chamber or water chamber adopts a self-sealing structure.

2) Connected box heater: The combined box heater is to replace the water chamber with a joint box (water collection pipe), so there is no tube sheet, and the heating surface of the heater adopts a spiral pipe coil. The heater housing consists of a removable cylinder with an upper part and a lower bottom cover.

The lower part of the cylinder body is welded with a flange, the upper head is welded with a steam population pipe seat and a lifting ring, and a variety of pipe seats are welded around the simplified body. The bottom cover is composed of an oval head and a forged flange, and a circular base is welded on the head, and the quality of the entire heater is fully borne by the base. The cylinder and the bottom cover are connected by flanges.

The heating surface pipe system of the heater is all fixed on the bottom cover, and the spiral pipe disc is divided into four rows according to the circular symmetry, and each row is composed of a plurality of horizontal spiral pipes. The feed water is fed into the spiral pipe group by a pair of upright inlet sumps, and then exited by another pair of upright outlet headers.