Automatic blanking system for dry quenching sintering

Abstract

The utility model relates to the technical field of coking operation, and provides a dry quenching sintering automatic discharging system which comprises a stock bin, a middle bin, a discharging machine, a spiral scale and a quick lime digester. The lower end of the stock bin is of a funnel-shaped structure, a rapping device is arranged on the outer wall of the lower end of the stock bin, an arch breaking device is arranged on the inner wall of the lower end of the stock bin, and a discharging pipe is arranged at the bottom of the stock bin; a cinder valve is arranged on the blanking pipe, the middle bin is located below the stock bin, the blanking pipe is communicated with the middle bin, the blanking machine is located below the middle bin, the blanking machine conveys materials from the middle bin to the spiral scale, and the spiral scale conveys the materials from the blanking machine to the quick lime digester. The vibrating device and the arch breaking device are arranged, the vibrating device acts on the outer portion of the stock bin, the arch breaking device acts on the inner portion of the stock bin, under the mutual cooperation of the vibrating device and the arch breaking device, the phenomena of caking and bridging of quick lime are avoided, the quick lime material can be stably and continuously conveyed to the spiral scale through the arrangement of the middle bin, and the working efficiency is improved. And continuous and stable discharging of the discharging system is ensured.

Description

Technical Field

[0001] This application relates to the field of coking operation technology, and more specifically, to an automatic feeding system for dry quenching coke sintering. Background Technology

[0002] Dry quenching is a quenching process that removes volatile substances from coke through a high-temperature reaction to improve coke quality. During dry quenching sintering, adding an appropriate amount of quicklime can significantly improve the permeability of the sintering material and increase the sintering temperature, thereby obtaining sinter of better quality. At the same time, the addition of quicklime can also reduce environmental pollution and improve the environmental friendliness of sintering production.

[0003] Ensuring the quality of sintered ore relies on meticulous control and research of the sintering production process. In the quicklime feeding system of the sintering machine, a combination of ash discharge valve, screw scale, and quicklime slaking device is usually used. The ash discharge valve is used to control the discharge process of quicklime to ensure that quicklime can be stably and continuously supplied to the downstream equipment. The screw scale is used to accurately measure the amount of quicklime fed. The quicklime slaking device is used to mix and digest quicklime with water to convert it into hydrated lime in order to better meet the needs of the sintering process.

[0004] Due to limitations in process conditions, especially the high temperature and humidity in spring and summer, which provide favorable conditions for the reaction of quicklime and water, quicklime is prone to clumping and bridging, which seriously affects the stability of quicklime feeding and leads to frequent damage and replacement of the ash discharge valve. Utility Model Content

[0005] The purpose of this application is to provide an automatic feeding system for dry quenching coke sintering, which avoids the clumping and bridging of quicklime and ensures continuous and stable feeding of the system.

[0006] This application provides an automatic feeding system for dry quenching coke sintering, which adopts the following technical solution:

[0007] An automatic feeding system for dry quenching coke sintering includes a silo, an intermediate silo, a feeding machine, a screw scale, and a quicklime slaking unit. The lower end of the silo has a funnel-shaped structure. A vibrating device is installed on the outer wall of the lower end of the silo, and an arch-breaking device is installed on the inner wall of the lower end of the silo. A feeding pipe is installed at the bottom of the silo, and an ash discharge valve is installed on the feeding pipe. The intermediate silo is located below the silo, and the feeding pipe communicates with the intermediate silo. The feeding machine is located below the intermediate silo. The feeding machine is used to transport the material from the intermediate silo to the screw scale, and the screw scale is used to transport the material from the feeding machine to the quicklime slaking unit.

[0008] Preferably, a balance pipe is provided between the silo and the intermediate silo.

[0009] Preferably, the vibrating device is a vibrator.

[0010] Preferably, the arch-breaking device is an arch-breaking air disc.

[0011] Preferably, the lining of the intermediate compartment is made of stainless steel.

[0012] Preferably, a level gauge is installed inside the silo.

[0013] Preferably, a support ring is provided on the outside of the hopper, and an electronic scale is provided below the support ring, with the electronic scale mounted on the support frame.

[0014] Compared with the prior art, the beneficial effects of this application are as follows:

[0015] This application incorporates a vibrating device and an arch-breaking device. The vibrating device acts on the outside of the silo, while the arch-breaking device acts on the inside. Through the cooperation of the vibrating device and the arch-breaking device, the clumping and bridging of quicklime inside the silo are prevented, thus avoiding damage to mechanical equipment due to material blockage. This maximizes the stability of quicklime addition within a limited time, improves the accuracy of quicklime feeding, and enhances the stability of the alkalinity of the sintered ore, thereby providing support for a stable sintering process and product quality.

[0016] By adding an intermediate silo between the silo and the feeder, the intermediate silo can carry the quicklime material from the silo and stably and continuously transport the quicklime material to the screw scale, thereby ensuring the continuous and stable feeding of the feeder system. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of some embodiments of the present utility model.

[0019] The reference numerals in the attached figures are as follows:

[0020] 1. Silo; 2. Intermediate silo; 3. Feeder; 4. Screw scale; 5. Quicklime digester; 6. Vibrating device; 7. Arch breaking device; 8. Feeding pipe; 9. Ash discharge valve; 10. Balance pipe; 11. Level gauge; 12. Support ring; 13. Electronic scale. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] Example

[0028] like Figure 1 As shown in the embodiment of this application, the automatic feeding system for dry quenching coke sintering includes a silo 1, an intermediate silo 2, a feeding machine 3, a screw scale 4, and a quicklime digester 5. The lower end of the silo 1 has a funnel-shaped structure. A vibrating device 6 is provided on the outer wall of the lower end of the silo 1, and an arch-breaking device 7 is provided on the inner wall of the lower end of the silo 1. A feeding pipe 8 is provided at the bottom of the silo 1, and an ash discharge valve 9 is provided on the feeding pipe 8. The intermediate silo 2 is located below the silo 1, and the feeding pipe 8 is connected to the intermediate silo 2. The feeding machine 3 is located below the intermediate silo 2. The feeding machine 3 is used to transport the material from the intermediate silo 2 to the screw scale 4, and the screw scale 4 is used to transport the material from the feeding machine 3 to the quicklime digester 5.

[0029] In use, the vibrating device 6 and the arch-breaking device 7 work at regular intervals. The vibrating device 6 acts on the outside of the silo 1, and the arch-breaking device 7 acts on the inside of the silo 1. With the cooperation of the vibrating device 6 and the arch-breaking device 7, the quicklime inside the silo 1 is prevented from clumping or bridging, and the ash discharge valve 9 is prevented from being frequently damaged and replaced due to blockage when the quicklime is discharged.

[0030] When quicklime needs to be fed, the ash discharge valve 9 is opened. The quicklime material inside the silo 1 enters the interior of the intermediate silo 2 through the discharge pipe 8 and then enters the discharge machine 3 through the intermediate silo 2. The discharge machine 3 conveys the material from the intermediate silo 2 to the screw scale 4, and the screw scale 4 conveys the material from the discharge machine 3 to the quicklime digester 5.

[0031] In this embodiment, a balance pipe 10 is provided between the silo 1 and the intermediate silo 2. Because the quicklime has a large fineness, it is easy to cause a negative pressure vacuum during the feeding process, which can cause the material to accumulate. The balance pipe 10 is used to prevent the material from accumulating due to the pressure difference between the upper and lower parts of the silo 1. At the same time, the balance pipe 10 can provide a pressure relief channel when the arch-breaking device 7 is working, thereby playing the role of diverting the pressure in the lower part of the silo 1.

[0032] In this embodiment, the rapping device 6 is a rapping machine.

[0033] In this embodiment, the arch-breaking device 7 is an arch-breaking air disc.

[0034] In this embodiment, the lining of the intermediate silo 2 is made of stainless steel. Stainless steel is not easy to stick to, which can reduce the resistance of quicklime material feeding.

[0035] In this embodiment, a level gauge 11 is installed inside the silo 1. The level gauge 11 is used to detect the material level inside the silo 1. When the material level inside the silo 1 is lower than the set value, an early warning is issued, which makes it convenient for the staff to replenish limestone material inside the silo 1 in time, thereby avoiding the silo 1 from being emptied.

[0036] In this embodiment, a support ring 12 is provided on the outside of the silo 1, and an electronic scale 13 is provided below the support ring 12. The electronic scale 13 is installed on the support frame (not shown in the figure). When in use, the electronic scale 13 weighs the silo 1 and displays the weight of the silo 1 at all times. When the weight of the silo 1 is lower than the set value, an early warning is issued, which makes it convenient for the staff to replenish the limestone material inside the silo 1 in time, thereby avoiding the silo 1 from being emptied. The electronic scale 13 and the level gauge 11 are used at the same time. With the cooperation of the two, the monitoring effect of the material level inside the silo 1 can be improved, and the phenomenon of the silo 1 being emptied can be avoided.

[0037] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An automatic feeding system for dry quenching coke sintering, characterized in that: Including silo, intermediate warehouse, discharging machine, screw scale and quicklime digester, the lower end of the silo is funnel-shaped structure, the outer wall of the lower end of the silo is provided with a rapping device, the inner wall of the lower end of the silo is provided with an arch breaking device, the bottom of the silo is provided with a discharging pipe, the discharging pipe is provided with a dust valve, the intermediate warehouse is located below the silo, the discharging pipe communicates with the intermediate warehouse, the discharging machine is located below the intermediate warehouse, the discharging machine is used to deliver the material from the intermediate warehouse to the screw scale, the screw scale is used to deliver the material from the discharging machine to the quicklime digester.

2. A dry quenching sinter automatic unloading system according to claim 1, characterized in that: Balance pipe is arranged between the silo and the intermediate warehouse.

3. A dry quenching sinter automatic unloading system according to claim 1, characterized in that: The rapping device is a rapping machine.

4. The dry quenching sinter automatic unloading system according to claim 1, characterized in that: The arch breaking device is an arch breaking air disc.

5. A dry quenching sinter automatic unloading system according to claim 1, characterized in that: The inner lining of the intermediate warehouse is made of stainless steel material.

6. A dry quenching sinter automatic unloading system according to claim 1, characterized in that: The inside of the silo is provided with a material level meter.

7. A dry quenching sinter automatic unloading system according to claim 6, characterized in that: The outside of the silo is provided with a support ring, and the lower portion of the support ring is provided with an electronic scale, and the electronic scale is installed on a support frame.

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