JPS5835301A - Boiler in cdq facility - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention This collection 5 relates to "modifications" of coke dry extinguishing equipment (hereinafter referred to as CDQ equipment), and concerns one error in CDQ equipment that lowers the overall height of 4I K CDQ equipment and has nine features. .

Generally, red-hot coke extruded from a coke oven is
Although it is cooled by dry or dry fire extinguishing methods,
In the dry extinguishing method using a closed system using coolant gas, the generated high temperature gas is used, but the heat is recovered by operating an iller, and the quality of coke is improved by suppressing the generation of fine cracks and slag. In addition, CDQ equipment has become widely popular in recent years due to its ability to improve the working environment by preventing and stopping the generation of dust. As shown in JK, the CDQ main body 1 is equipped with a cooling coke discharge device 6 at the bottom.
It consists of a high-temperature gas flow path 2 equipped with a primary dust collector, a drainer 3 equipped with a deaerator 13 for water supply, and a circulating gas flow path 4 for low-temperature gas supply equipped with a secondary dust collector. it,
Red-hot coke is extinguished in the CDQ body 1 by circulating gas, and the high-temperature gas generated by heat exchange at that time is
-3 is configured to operate continuously.

The CIDQ main body 1 has an O upper inlet 5 in the upper part for charging red-hot coke, a large number of pin duffles, . It is a 1-shaped structure, and the inside of the main body - Pingfuri! The area above the level of L-7 constitutes a pre-chamber, and the area below this level constitutes a cooling chamber. C
A lower discharge device 6 for discharging the cooled coke is disposed at the lowest part of the DQ main body.

A high-temperature gas flow path 2 is provided connected to the sloping section 7my of the CDQ main body 1, and a primary dust collector consisting of a dust collection plate 9 and a cooling pipe 10 is disposed in the middle of the flow path 2. In addition, the hot gas inlet 11 of the boiler 3
is familiar with A gas outlet 12 of the boiler 3 communicates with a circulating gas inlet 8 for cooling the CDQ main body 1 via a circulating gas passage 4, thereby forming one closed system.

In the circulating gas flow path 4, a cyclone 17 is usually installed as a secondary dust collector, and a circulating gas for cooling is supplied with C.
A blower 18 is provided to feed the DQ main body l.

In addition, a water supply deaerator 13 is attached to the I errorer 3, and water is supplied to the axillary deaerator 13 from a water supply source to a water supply pump 16 via a water supply pipe 15, and the water is supplied to a steam supply pipe 14. After being heated to near the boiling point by high-temperature steam supplied through the boiler to degas the dissolved gas, it is continuously supplied to the larder 3.

In the CDQ equipment described above, dry extinguishing of coke is carried out as follows. In other words, the red-hot coke pushed out of the coke oven is carried to the top of the CDQ body 1 by a coke packet car (not shown) pulled by a train, and the coke put in the coke bucket is lifted up by a crane and placed above the oven. The charging device loads the CDQ into the internal chamber arm of the CDQ main body 1. Red-hot coke is no oar,
The cooled coke is charged at a rate of, for example, once every 10 minutes using the gray chamber system, while the cooled coke is discharged almost continuously at intervals of, for example, 90 seconds by the lower discharge device 6.
Fi, red-hot coke must be kept constantly. This is to prevent additional fluctuations in the operation of the boiler 1.

The circulating gas for cooling and extinguishing the red-hot coke is an inert gas whose main component is nitrogen, and the temperature at the inlet 8 is approximately 1
As the cooled coke is discharged, the red hot coke held at 80°C exchanges heat with the circulating gas while descending inside the internal chamber of the CDQ main body, especially in the cooler chamber. In this case, the coke temperature in the prechamber is approximately 'It can be maintained at 1000℃, while the temperature of discharged coke is about 20℃.
Cool down to 0°C. - The gas that exchanges heat with the hot coke becomes high-temperature gas and is extracted into the high-temperature gas passage 2 through the middle binder 7 and -7 of the CDQ main body 1.

In order to avoid gas force and tender on the boiler and other ON equipment, large-sized dust that is eaten in the high-temperature gas flow is removed by the primary dust collection aK consisting of the mest cooling pipe 10 by the mest collection @ 9 and the primary dust collection aK consisting of the mest cooling pipe 10. After Mest lk * O high temperature gas line High temperature gas enters the filler 3 from the high temperature gas population 11, where heat exchange takes place and the sensible heat held by the circulating gas is recovered as steam in the boiler 3 ◎ Heat exchange is performed in the boiler 3 After doing this, the circulating gas is circulated.
Even fine secondary dust is collected by the cyclone 17 installed in the Zusu*i 14, and then returned to the CDQ
It is circulated to the main body 1. Is the collection of secondary dust by Cyclone 17 a professional? -180 aircraft damaged and 1%fh9th time to be carried out.

As mentioned above, the boiler in the conventional CDQ equipment is connected to the A-f gas flow path 2 in order to receive the high-impact circulation 11fi If gas after collecting the primary dust in the upper part of the main body of the mailer. A high-temperature gas inlet 11 is provided at the bottom, and a circulating gas outlet 12 is provided at the bottom. 0#chi, -p zone #'i, wA from the top as shown in Figure 2.
K consists of a superheater section 3a, an evaporator section 3b, and an economizer section 3C, and has a desired height H as a whole. constitutes an error.

This invention relates to the improvement of the boiler of the CDQ equipment mentioned above, and its gist is that it is equipped with a CDQ main body, a high-temperature gas flow path equipped with a primary dust collector, a water supply deaerator, In CDQ equipment configured as a closed system consisting of a circulating gas flow path for supplying low-temperature gas equipped with a secondary dust collector, the gas flow path after the primary dust is collected is used for boiler heat exchange. Especially when used as part of a chip zone, CDQ equipment is particularly useful because it is characterized by a reduced overall height of the equipment.

゛The embodiment of the present invention shown in FIG. 3 will be described below. In the figure, each part of the CDQ equipment is given the same reference numerals as those in FIGS. 1 and 2.

In Fig. 3, the part of the high-temperature gas flow path 2 after the primary dust is collected by the primary dust collector consisting of the dust collecting plate and the dust cooling pipe has a filter that forms part of the boiler tube zone. The riper part 3a is arranged in a relatively horizontal trap. In this superheater section 3a, the boiler feed water has a temperature of 800.
It exchanges heat with high-temperature gas around ℃ and is taken out from the boiler 3 as superheated steam.

In the above embodiment, the high-temperature gas flow path after primary dust collection in the CDQ equipment is used as a part of the heat exchange tube zone of the boiler. Compared to the vertical water pipe type with a total height H consisting of the evaporator section 3b and the economizer section 3c, the total height of the iller can be kept low as shown by the total height in the figure. . In the description of the embodiment, the superheater section 3a is entirely disposed in the high-temperature gas flow path 2, but the superheater section 3as, the evaporator section 3b, and the economizer section 3a are composed of continuous water pipes. Because
It goes without saying that by arranging a considerable portion of these tube zones in the hot gas passage 2, the overall height of the boiler 3 can be designed to be suitably low.

As is clear from the above explanation, K, and according to the present invention, C
Since the main body of the galley in the DQ equipment can be made small and compact, equipment costs can be reduced and building construction costs can also be significantly reduced. .

[Brief explanation of the drawing]

Fig. 1 is a schematic explanatory diagram of the CDQ equipment, and Fig. 2 is a conventional diagram installed in the CDQ equipment. Type water tube type? illustration of illah,
FIG. 3 is an explanatory diagram showing an error in a CDQ equipment according to an embodiment of the present invention. 1-.CDQ main body, 2..High temperature gas flow path 3..
・Giller 4...Circulating gas flow path 5...Top inlet 6...Lower discharge device 7...Sloping 7, -8...Circulating gas inlet 9...Dust collection plate 10・
...Dust cooling pipe 11...High temperature gas population 12...
Gas outlet 13... Water supply deaerator 14... Steam supply pipe 15 River water supply pipe 16... Water supply pump 17
．． 1. Cyclone 18... Prower 3a - Superheater section 3b... Evaporator section 3c... Carbon saver section procedural amendment (F5 type) Showa (February Z year Z Patent Office Commissioner Shimada Tani 1 Indication of the case Showa (6th year patent application No. 133/'7J case)
Applicant 4, Agent Address: 3305 Marunouchi Shigesu Building, 2-6-2 Marunouchi, Chiyoda-ku, Tokyo; Date of amendment order: July 26, 1920; Amendment: Date: The following matters in the statement of refusal: We will correct it. 1. On the 8th line from the bottom of the first page, the ending "3. Detailed Description of the Invention" is corrected to "3. Detailed Description of the Invention." Agent Teru Taniyama Procedural Amendment February 2, 1972 Director General of the Patent Office Tochi - Minister of Foreign Affairs 1.1.4' - Display of 1920 Showa Patent Application No. 133/7, No. 3, Person amending the case Relationship with Applicant: Person'1F'' (@pFr) Ote 2-chome 2-chome G, Chiyoda-ku, Tokyo
C3 - Name abbreviation) (665) Nippon Steel Corporation 4,
Agent Amendment We will amend the following matters in the main application specification. The words "this invention" in lines 1 and 16 are respectively corrected to "the present invention." Agent Teruo Taniyama

Claims (1)

[Claims] CDQ main body, high temperature gas flow path equipped with a primary dust collector,
In the CDQ equipment, which consists of a primary system equipped with a deaerator for water supply and a secondary dust collector and a circulating gas flow path for low-temperature gas supply, 1.
Next! If the gas flow path after 9 is collected and used as part of the heat exchange zone of the I error, the overall height of the equipment can be lowered.