WO1986001819A1 - Method of and apparatus for discharging pulverulent and granular substance from hermetic vertical cooling furnace - Google Patents

Abstract

A method of discharging a pulverulent and granular substance from a hermetic vertical cooling furnace. From the lower region of the cooling chamber of a cooling furnace (12) for cooling a pulverulent and granular substance, such as red-hot coke, the substance which has been cooled is continuously and quantitatively supplied in an atmosphere sealed off from the ambient atmosphere and is stored in each of the container parts provided in a rotor (13) of a rotary valve (11) to such an extent that each container parts is not fully filled with the substance, and the substance is discharged into the ambient atmosphere by rotating the rotor (13). Also disclosed is an apparatus suitably used in the above-described method.

Description

 Description Air-tight vertical cooling furnace

 And equipment for discharging wastewater Technical field and background art

 The present invention relates to a method and an apparatus for discharging powders in a vertical cooling furnace for powders requiring airtightness in an atmosphere in which air is shut off.

Is a discharge device for the granular-body vertical _k cooled reactor requiring airtightness, for example, co-chromatography click scan furnace by Ri discharge. Glow co over click scan sensible heat of Te recovery Les' Ministry of e issued Ne conservation over There is a discharge device that discharges the cooled coke from the vertical cooling furnace of the dry fire extinguishing system. In these facilities, it is important to reduce the height of the equipment in terms of installation costs, but in the past, as in the case of the Soviet Union: 7 ° A patch is cut out from the bottom of the vertical cooling furnace via a cut gate by a patch type, and hermetically sealed with a seal hood with a double seal valve. And after the product has been wholesaled to one piece, the continuous discharge to the dispensing pelt conveyor is carried out at the roof gate, so the height of the entire discharge device becomes large. Was inevitable.

Also, Japanese Patent Laid-Open No. 57-36884 (corresponding to U.S. patent application Ser. No. 4,344,823) proposes a method for continuous cutting from a vertical cooling furnace. However, the method is not The spilling means is still due to the use of a seal popper with a double seal valve, which does not increase the height of the discharge device.

 Further, as shown in FIG. 1, a method is known in which a rotary valve 1 is directly exposed to a powder outlet 5 of a vertical cooling furnace 2, but a rotor 3 is used. Undesired penetration of coke between the shaft and casing 4 causes increased crushing and load, and significant wear on rotor 3 and casing 4 Practical use is difficult because of the drawbacks that the airtight function cannot be guaranteed after a short operation.

DISCLOSURE OF THE INVENTION

 The present invention solves the above-mentioned problems and, while maintaining airtightness, a method capable of continuously discharging powders and granules, and further reducing the height of the entire equipment, and an inexpensive discharge device. For the purpose of providing.

 For this purpose, according to the present invention, the powder and granules are continuously and quantitatively taken out from the lower part of the cooling chamber of the vertical cooling furnace in an atmosphere in which the air is shut off, and the air is cut off in an atmosphere where the air is cut off. The powder and granules taken out to the one storage unit of the rotary valve, which is provided in an airtight manner so that it is opened to the outside, are stored in a range that does not become full, and the rotor is further opened. It is characterized in that the powder in the storage section is discharged to the atmosphere by rotating the table.

Furthermore, according to another feature of the present invention, a QMK that requires airtightness In the discharge device of the vertical cooling furnace for granular materials, an airtight chamber communicating with this outlet and having an opening for discharging the granular material is provided below the outlet of the granular material in the cooling chamber. In the hermetic chamber, a transfer device that continuously and quantitatively sends the granules from the granule outlet to the opening of the hermetic chamber from the outlet is installed, and at least one storage section is provided around the A rotary valve having a rotatable rotor is provided so that the storage section communicates with the opening of the airtight chamber in an airtight manner with rotation, and the drive device rotates the rotary port. This provides a discharge device that continuously discharges the granules.

 According to the present invention configured as described above, the following effects can be obtained.

① while maintaining the airtightness of the vertical cooling furnace can continuously discharge the granular material Runode, co chromatography click Wa over 38628 huya sheet over sulfo Tsu Ha ⁰ - facilities needed for temporarily storing the equal granular material is there.

 (2) In addition, the use of a rotary valve instead of a double seal valve to maintain the airtightness of the vertical cooling furnace reduces the height of the discharge device. Therefore, the entire equipment of the vertical cooling furnace is reduced, and equipment costs are reduced.

 Hereinafter, a discharge device according to an embodiment of the present invention will be described with reference to the drawings. From these descriptions, characteristics of a discharge method, which is another aspect of the present invention, will be clearer. BRIEF DESCRIPTION OF THE FIGURES

Fig. 1 shows a vertical valve at the bottom of a vertical cooling furnace for granular materials. Fig. 2 is a cross-sectional view of an essential part of an example of a conventional discharge device in which a vibration feeder is installed at the bottom of a vertical cooling furnace for granular material. Main part sectional view showing an embodiment of the present invention provided with a rotary valve,

 FIG. 3 is a perspective view of a rotor of a rotary valve used in the present invention.

 Fig. 4 shows a 7 ° port feeder at the bottom of the vertical cooling furnace for powder and granules. FIG. 5 is a sectional view of a main part showing another embodiment of the present invention in which a rotary valve is provided at the discharge part of the feeder. FIG. Fig. 7 is a cross-sectional view of a principal part showing still another embodiment of the present invention in which a feeder is provided and a rotary valve is provided at an outlet of the roll feeder. Disclosure of the best mode for carrying out the invention

Fig. 2 shows an airtight chamber 16 provided below the outlet 15 of the vertical cooling furnace 12 and a vibration feeder 17 as a transfer device installed in the airtight chamber. Further, in this example, a rotor valve 11 is provided adjacent to the discharge section of the vibration feeder 17. In the figure, 13 is a rotatable port, 14 is a casing for accommodating the rotor 13, and 18 is a rotor blade and casing. The inner periphery of 1'4 is slidably contacted with the inner periphery of 1'4, so that the hermeticity of the hermetic chamber 16 is maintained. In this embodiment, the airtightness is maintained by direct contact between the casing and the rotor blades. The airtightness may be maintained by interposing a sealing means.

 As shown in FIG. 3, the rotor 13 is preferably provided with a side plate 19 to improve airtightness, and is continuously provided by a vibrating feeder 17. The granular material cut out quantitatively is supplied to a supply port 20 to a rotor valve 11 and is surrounded by a rotor blade 18 and a side plate 19 around a rotor 13. It is housed in a plurality of storage portions formed radially at the same time, and is further discharged from the mouth-tally valve 11 with the rotation of the rotor 13 by a driving device (not shown). Delivery Belt Conveyor — transported by 21.

 The vibratory feeder 17 has a good quantitative cut-out property except for a large particle size (200 baskets or more), so that the rotor 18 and the side plate 19 In order not to supply more than the capacity of each space, that is, the storage unit, it is possible to control the amount of supply so as not to be full, and to add granular materials. is there. In addition, since the vibration feeder 17 is provided upstream of the rotary valve 11, the opening width a of the supply port 20 to the rotary valve 11 is limited. On the other hand, it is possible to make the falling flow width b of the granular material small, and it is possible to prevent the infiltration of the granular material between one rotor blade 18 and the casing 14. .

In addition, cutting the amount that by the vibration off I over da one 1 7 and the o - the rotational speed of the motor re-Ichiben 1 1 by that emissions ie capacity of each housing unit you good beauty _π Ichita-1 3 and Detailed specifications such as the relationship It should be determined according to each facility from the granular cooling capacity of the reactor 12 and the desired discharge amount, etc., and will not be described in further detail here.

 Also, there is a problem in that the tip of the rotor blade 18 is exposed to the falling flow of the granular material at the supply port 20, but the vibration feeder 17 causes the rotor blade 18 to wear. Since the falling speed of the granular material supplied to the supply port 20 to the tally valve 11 can be minimized, it can be supplied gently and the rotor blade 18 can be prevented from wearing at the tip. In addition, the wear of this part is local, and even if a high friction material such as high cr steel is used, there is no problem in the overall equipment cost of the port-tally valve 1.1. If a higher level of hermeticity is required, a super abrasion-resistant material such as nitrogen nitride ceramic may be used for this part, or a replacement structure may be used. High airtightness can be maintained by replacing the airtightly.

 Furthermore, the vibration feeder 17 is inexpensive, has sufficient durability, and is highly practical. In particular, the compactness of the quantitative cutout device is important for the present invention, and the equipment cost can be reduced because not only the discharge device but also the entire cooling furnace can be lowered.

 However, the transfer device of the present invention is not limited to the vibration feeder, and as another embodiment of the present invention, the epoxy feeder is provided with a rotary valve. Fig. 4 shows an example of using it as a quantitative extraction device upstream of the system.

 In the figure, 1 17 is installed in the airtight room 1 16

One OMPI The other components in the epro-feeder are the same as those in the embodiment shown in FIG. 2, and therefore, are denoted by the same reference numerals as in FIG.

 °; 7 ° □ The characteristic of the feeder 1-17 is that quantitative extraction is excellent even for the extraction of large-grained powder, and quantitative extraction is easy. In the combination with the rotary valve 11 of the present invention, a small sieve is used to narrow the flow width b of the supplied granular material. It is preferable to provide a cutout 11 1 to prevent the particulates from getting caught in the rotary valve 11.

 Further, as another embodiment, an example in which a per-feeder is used as an upstream fixed-quantity extraction device of a single-port valve is described.

Figure 5 shows.

 In the figures, reference numeral 217 denotes a roll feeder installed in the hermetic chamber 216, and the same reference numerals as those in FIGS. 2 and 4 denote the same. The same components as those used in the illustrated embodiment are shown.

 The characteristics of the Roll Feeder II 17 are that it is simple in structure, durable, and inexpensive. In addition, the same as in the case of the combination of the 7 ° low feeder and the rotary valve, preventing the powder and particulate matter from being caught in the rotary valve 11. For this reason, it is better to provide a small shot 211 at the discharge section of the roll feeder 2 17.

Although the present invention has been described based on the embodiments, the present invention is not limited to only these embodiments, but rather includes claims. It will be apparent that various modifications are possible within the scope of the inventive concept shown in the box.

 OMPI

Claims

 Range of SB request 1. A vertical cooling furnace that requires airtightness. A method for continuously discharging powder and granules, comprising the following steps:  (a) continuously and quantitatively taking out the cooled powder from the lower part of the cooling chamber of the cooling furnace (12) in an atmosphere in which the atmosphere is shut off;  (¾) Removed to the storage part of the rotor (13) of the rotary valve (11), which is provided in an airtight manner so as to open into the atmosphere where the air is shut off Powder, containing the body to the extent that it does not fill up;  (c) By discharging the rotor (13), the powder and granular material stored in the storage section is discharged to the atmosphere.  2. In a discharge device that continuously discharges powder and granules in an atmosphere in which the atmosphere is shut off from the lower part of the cooling chamber of a vertical cooling furnace for powder and granules requiring  An airtight chamber (1) provided at the lower portion of the particulate material outlet (15) of the cooling chamber so as to communicate with the outlet (15) and provided with an opening (20) for taking out the particulate material. 6, 1 16, 2 16) The granules installed in the hermetic chamber (16, 116, 216 :) are continuously and quantitatively sent from the granule outlet (15) to the opening (20). Transfer device (17, 1 17, 1 OPI-1 '. 2 1 7)  At least one storage unit for the granular material is provided around the periphery, and the storage unit is rotated and the opening (20 :) of the airtight chamber (16, 116, 216) is airtight. A rotary valve (11 :) having a rotatable rotor (13) rotatably provided so as to communicate with each other;  And a driving device for rotating the rotor (13).  5. The discharge device according to claim 2, wherein the airtight chamber (116, 216) has a restrictor for restricting a width of the granular material sent to the opening (20 :). A discharge device characterized in that a section (111) is provided.  4. The discharge device according to claim 2, wherein the transfer device is a vibratory feeder (17 :).  5. The discharge device according to claim 2, wherein the transport device is an Eplow feeder (117).  6. The discharge device according to claim 2 or 5, wherein the transport device is a roll feeder (2 17). O PI-